CN112642604B - Spray nozzle device, spray equipment and spray method - Google Patents
Spray nozzle device, spray equipment and spray methodInfo
- Publication number
- CN112642604B CN112642604B CN202011520712.8A CN202011520712A CN112642604B CN 112642604 B CN112642604 B CN 112642604B CN 202011520712 A CN202011520712 A CN 202011520712A CN 112642604 B CN112642604 B CN 112642604B
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- Prior art keywords
- paint
- air
- channel
- shell
- mist
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0892—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being disposed on a circle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
Landscapes
- Nozzles (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
本发明涉及装备检修设备技术领域，尤其涉及一种喷漆喷嘴装置、喷漆设备及喷漆方法。该喷漆喷嘴装置包括：喷漆通道，一端构造有用于向补漆面喷射漆雾的喷射口；喷气通道，套设于喷漆通道外，喷气通道朝向补漆面的一端设有喷气口，喷气口用于向补漆面注入气体以在漆雾的外围形成气封层；抽吸通道，构造于喷气通道与喷漆通道之间，以使气封层与漆雾之间形成局部真空区，气封层的部分气体以及漆雾能回流入抽吸通道内，从而在喷漆喷嘴装置与补漆面之间形成的间隙内，喷漆喷嘴装置向补漆面喷射的漆雾能够被气封层可靠包围，完全避免间隙内的漆雾外泄，进而对于提高操作人员的工作条件、操作环境、工作效率以及身体健康都产生了有效的促进作用。
The present invention relates to the technical field of equipment maintenance equipment, and in particular to a paint spray nozzle device, paint spray equipment and a paint spraying method. The paint spray nozzle device comprises: a paint spray channel, one end of which is configured with a nozzle for spraying paint mist onto a touch-up paint surface; an air jet channel, which is sleeved outside the paint spray channel, and the end of the air jet channel facing the touch-up paint surface is provided with an air jet port, and the air jet port is used to inject gas into the touch-up paint surface to form an air seal layer around the paint mist; a suction channel, which is configured between the air jet channel and the paint spray channel, so that a local vacuum zone is formed between the air seal layer and the paint mist, and part of the gas in the air seal layer and the paint mist can flow back into the suction channel, so that in the gap formed between the paint spray nozzle device and the touch-up paint surface, the paint mist sprayed by the paint spray nozzle device onto the touch-up paint surface can be reliably surrounded by the air seal layer, completely preventing the paint mist in the gap from leaking out, thereby effectively promoting the working conditions, operating environment, work efficiency and physical health of the operator.
Description
Technical Field
The invention relates to the technical field of equipment overhaul equipment, in particular to a spray nozzle device, spray equipment and a spray method.
Background
The paint repair is an indispensable link in the equipment overhaul process. The repair of certain equipment is often required in the field where the equipment is located, such as bridge repair operations. The bridge is outdoor, and is subjected to wind, rain and temperature transformation all the year round, and the environment is comparatively abominable, and the lacquer coating of bridge drops very easily to need reduce even avoid the possibility that corrosion phenomenon appears through the paint repair operation. The repair of bridges is usually carried out continuously year after year. The method is limited by field operation conditions, and paint is difficult to paint in the paint repair operation of the bridge, and paint is mostly painted.
At present, when an operator performs paint repairing operation, the situation that in the process of spraying paint mist to a paint repairing surface by a nozzle, the paint mist diffuses along the periphery of the paint repairing surface, so that the operator is often surrounded by the paint mist, the diffused paint mist can not only cause bad influence on the working condition of the operator, reduce the working efficiency of the paint repairing operation, but also seriously threaten the health of the operator, cause bad influence on the external environment, and are unfavorable for environmental protection is easy to occur.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a spray nozzle device for solving the problems caused by the fact that paint mist diffuses along the periphery of a paint replenishing surface in the process of spraying the paint mist to the paint replenishing surface by a nozzle.
The invention also provides paint spraying equipment.
The invention also provides a paint spraying method.
According to an embodiment of the first aspect of the present invention, a paint spray nozzle device includes:
One end of the paint spraying channel is provided with a spray opening for spraying paint mist to the paint replenishing surface;
The air injection channel is sleeved outside the paint spraying channel, one end of the air injection channel, facing the paint supplementing surface, is provided with an air injection port, and the air injection port is used for injecting air into the paint supplementing surface to form an air sealing layer at the periphery of the paint mist;
And the suction channel is configured between the air injection channel and the paint spraying channel, so that a local vacuum area is formed between the air sealing layer and the paint mist, and part of air of the air sealing layer and the paint mist can flow back into the suction channel.
According to one embodiment of the invention, one end of the air injection channel facing the paint repair surface is provided with a plurality of air injection ports, and each air injection port is arranged around the paint mist, so that gas injected by each air injection port forms a plurality of gas flow impact areas on the paint repair surface, and each gas flow impact area is connected and forms the gas seal layer.
According to one embodiment of the invention, the end of the suction channel facing the paint make-up surface is provided with a suction opening, which is located inside the air jet opening.
According to one embodiment of the present invention, further comprising:
An air inlet channel, one end of which is provided with an air inlet, the other end is communicated with the air injection channel;
And one end of the exhaust channel is provided with an exhaust port, and the other end of the exhaust channel is communicated with the suction channel.
According to one embodiment of the invention, the paint spraying device further comprises a first shell, a second shell and a third shell which are arranged from outside to inside, wherein first ends of the first shell and the second shell are respectively sleeved outside one end of the air spraying channel, which is far away from the air spraying port, at intervals, first ends of the third shell are sleeved on the outer edge of the air spraying port, second ends of the first shell, the second shell and the third shell extend outwards in a horn shape from the air spraying port, the air spraying channel is formed between the first shell and the second shell, the suction channel is formed between the second shell and the third shell, and a conical channel for spraying paint mist is formed in the third shell.
According to a second aspect of the present invention, a paint spraying apparatus includes:
a spray nozzle device as described above;
A feed assembly connected to a paint spray path of the paint spray nozzle device;
the air seal assembly is connected with the air injection channel of the spray nozzle device;
and the post-treatment assembly is connected with the suction channel of the spray nozzle device.
According to one embodiment of the invention, the feed assembly comprises a compressor and a paint line, the paint line being connected to the paint inlet of the paint spray channel, the compressor being connected to the paint line or the paint inlet via a first line, the first line being provided with a valve.
According to one embodiment of the invention, the air seal assembly comprises an air inlet fan, the air inlet fan is connected with an air inlet of the air injection channel through a second pipeline, the first pipeline and the second pipeline are connected through a third pipeline, and a valve is arranged on the third pipeline.
According to one embodiment of the invention, the post-treatment assembly comprises a paint remover and an exhaust fan, wherein the paint remover comprises a shell and an air outlet pipe, an adsorption lining layer is filled in the shell, the suction channel is connected into the adsorption lining layer, one end of the air outlet pipe extends into the shell, and the other end of the air outlet pipe is connected with the exhaust fan.
A paint spraying method according to an embodiment of the third aspect of the present invention is performed by the paint spray nozzle apparatus as described above, or by the paint spraying device as described above, the paint spraying method comprising:
spraying an air seal layer and conical paint mist synchronously to a paint supplementing surface respectively by utilizing an air injection channel and a paint spraying channel of a paint spraying nozzle device, wherein the air seal layer surrounds the paint mist in an annular manner;
and forming a local vacuum area between the air sealing layer and the paint mist by utilizing a suction channel of the paint spraying nozzle device.
The embodiment of the invention has at least one of the following technical effects:
the paint spraying nozzle device comprises a paint spraying channel, an air spraying channel and a suction channel, wherein one end of the paint spraying channel is provided with an injection port used for injecting air into the paint spraying channel towards one end of the paint spraying channel, the injection port is sleeved outside the paint spraying channel, the air spraying channel is arranged at the end of the air spraying channel towards the paint spraying channel, the air spraying port is used for injecting air into the paint spraying channel to form an air sealing layer on the periphery of the paint spraying channel, the suction channel is arranged between the air spraying channel and the paint spraying channel, so that partial air of the air sealing layer and the paint spraying channel can flow back into the suction channel, and therefore paint spraying mist sprayed by the paint spraying nozzle device towards the paint spraying channel can be reliably surrounded by the air sealing layer in a gap, and further, the paint spraying nozzle device can completely avoid leakage of the paint spraying mist in the gap, and further has an effective promotion effect on improving working conditions, operating environments, working efficiency and physical health of operators.
The paint spraying equipment comprises the paint spraying nozzle device, a feeding component, a gas seal component, a post-treatment component and a suction channel, wherein the feeding component is connected with a paint spraying channel of the paint spraying nozzle device, the gas seal component is connected with a gas spraying channel of the paint spraying nozzle device, and the post-treatment component is connected with the suction channel of the paint spraying nozzle device. By arranging the paint spraying nozzle device, the paint spraying equipment has all the advantages of the paint spraying nozzle device and is not described in detail herein.
The paint spraying method is carried out by the paint spraying nozzle device or the paint spraying equipment, and comprises the steps of synchronously spraying an air sealing layer and conical paint mist to a paint supplementing surface respectively by utilizing an air spraying channel and a paint spraying channel of the paint spraying nozzle device, enabling the air sealing layer to surround the paint mist in an annular mode, and forming a local vacuum area between the air sealing layer and the paint mist by utilizing a suction channel of the paint spraying nozzle device. Since the painting method is performed by the above-described painting nozzle device or painting apparatus, the painting method has all advantages of the above-described painting nozzle device, and will not be described in detail herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing a structure of a spray nozzle device according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the flow of air in the gap formed between the spray nozzle device and the paint make-up surface in accordance with an embodiment of the present invention;
FIG. 3 is a schematic structural view of a spray nozzle device according to an embodiment of the present invention;
FIG. 4 is a schematic view of a construction of a paint spraying apparatus according to an embodiment of the present invention;
FIG. 5 is a front cross-sectional view of a paint remover of an embodiment of the invention;
fig. 6 is a top cross-sectional view of a paint remover of an embodiment of the invention.
Reference numerals:
1, a paint spraying channel; 11, paint inlet, 12, jet orifice, 2, jet channel, 21, jet orifice, 3, suction channel, 31, suction orifice, 4, air inlet, 41, 5, air outlet, 51, air outlet, 6, paint mist, 7, gap, 8, air seal air flow and 9, mixed air flow;
201, a first shell, 202, a second shell, 203, a third shell;
100 parts of paint repairing surface, 200 parts of spray gun nozzle, 300 parts of compressor, 400 parts of air inlet fan, 500 parts of paint remover, 600 parts of air outlet fan, 700 parts of valve, A part of paint pipeline and B part of air outlet pipeline;
510 parts of shell, 511 parts of adsorption lining layer, 520 parts of air outlet pipe and 530 parts of sealing cover;
810 first conduit, 820 second conduit, 830 third conduit.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, the embodiment of the present invention provides a spray nozzle device 200, and based on the spray nozzle device 200, the embodiment of the present invention further provides a spray apparatus, as described in fig. 4 to 6, and a spray method.
As shown in fig. 1, the spray nozzle device 200 according to the embodiment of the present invention includes a spray air passage 2, a suction passage 3, and a spray air passage 1, which are provided from the outside to the inside. The air injection channel 2, the suction channel 3 and the paint spraying channel 1 are not communicated with each other so as to avoid mutual confusion of paint and gas before being sprayed out, and the channels are not communicated with each other so as to ensure that mixed flow gas formed by mixing the air flows of the paint mist 6 and the air sealing layer enters the suction channel 3 to be discharged outwards, thereby ensuring that a local vacuum area is formed between the air sealing layer and the paint mist 6 and enhancing the blocking effect of the air sealing layer on the leakage of the paint mist 6.
Specifically, one end of the paint spraying passage 1 is configured with an injection port 12 for injecting paint mist 6 toward the paint make-up surface 100, and preferably the other end of the paint spraying passage 1 is configured with a paint inlet 11. The air injection channel 2 is sleeved outside the paint spraying channel 1, and an air injection port 21 is arranged at one end of the air injection channel 2 facing the paint repair surface 100, and the air injection port 21 is used for injecting air into the paint repair surface 100 to form an air sealing layer on the periphery of the paint mist 6. The suction channel 3 is configured between the air injection channel 2 and the paint spraying channel 1, so that a local vacuum area is formed between the air sealing layer and the paint mist 6, and part of air of the air sealing layer and the paint mist 6 can flow back into the suction channel 3, so that the paint mist 6 formed in a gap 7 formed between the paint spraying nozzle device 200 and the paint supplementing surface 100 can be reliably surrounded by the air sealing layer, the paint mist 6 in the gap 7 is completely prevented from leaking, and further, effective promotion effects can be generated for improving the working condition, the operating environment, the working efficiency and the health of operators.
It will be appreciated that the "gap 7" in the embodiment of the present invention refers to a space reserved between the end surface of the paint spraying nozzle device 200 facing the paint repair surface 100 and the paint repair surface 100 in the process of spraying the paint mist 6 on the paint repair surface 100 by the paint spraying nozzle device 200, so as to adapt to the dimensional change of the paint repair surface 100 in the direction perpendicular to the axis of the paint mist.
In order to ensure that the air seal layer in the gap 7 can completely isolate the paint mist 6 from the external environment, the paint mist 6 is thoroughly prevented from leaking, preferably, one end of the air injection channel 2, which faces the paint repair surface 100, is provided with a plurality of air injection ports 21, each air injection port 21 is arranged outside the paint mist 6 in a surrounding manner, so that the air injected from each air injection port 21 forms a plurality of air flow impact areas on the paint repair surface 100, and each air flow impact area is connected and forms the air seal layer. The continuous and uninterrupted air seal layer is formed on the periphery of the paint mist 6 due to the connection or partial overlap between the air impact areas.
It will be appreciated that the end of the suction channel 3 facing the paint make-up surface 100 is provided with a suction opening 31, the suction opening 31 being located inside the air jet 21.
It will be appreciated that the paint spray nozzle device 200 further comprises an air inlet passage 4 and an air outlet passage 5. One end of the air inlet channel 4 is provided with an air inlet 41, and the other end of the air inlet channel 4 is communicated with the air injection channel 2. One end of the exhaust passage 5 is provided with an exhaust port 51, and the other end of the exhaust passage 5 communicates with the suction passage 3. The air inlet channel 4 and the air outlet channel 5 are arranged, so that air can be conveniently injected into the air injection channel 2, and air in the suction channel 3 can be conveniently sucked out by using the air suction mechanism, so that on one hand, the running speed of various air flows in the paint spraying nozzle device 200 can be conveniently controlled, and on the other hand, the air flow of the air sealing layer can be reasonably controlled. The specific control principle of the air flow of the air seal layer is elaborated through specific test examples, and is not described herein again.
Further, as shown in fig. 1, the spray nozzle device 200 according to the embodiment of the present invention further includes a first housing 201, a second housing 202, and a third housing 203 disposed from outside to inside. The first ends of the first shell 201 and the second shell 202 are respectively sleeved outside one end of the air injection channel 2, which is far away from the air injection port 21, and the first end of the third shell 203 is sleeved on the outer edge of the injection port 12, and the second ends of the first shell 201, the second shell 202 and the third shell 203 are respectively outwards extended from the injection port 12 in a horn shape. An air injection channel 2 is formed between the first shell 201 and the second shell 202, a suction channel 3 is formed between the second shell 202 and the third shell 203, and a conical channel for spraying paint mist 6 is formed in the third shell 203. The first aspect of the structure can be used for enclosing the first shell 201 and the second shell 202 to form an annular end face, the air nozzle 21 is arranged on the annular end face, so that the air nozzle 21 surrounds the periphery of a region sprayed by paint mist 6, an annular air seal layer is established at a position where the paint mist 6 is sprayed out, and leakage of the paint mist 6 is effectively prevented, the second aspect can be used for establishing a local vacuum region at the position where the paint mist 6 overflows and the joint of the air seal layer, guiding the paint mist 6 to flow into the suction channel 3 in the annular air seal layer and be discharged into a post-processing component through the suction channel 3, and therefore, the amount of paint mist which can overflow is reduced, the burden of the air seal layer is reduced, the strength of the air seal layer is enhanced, the third aspect can be used for enclosing a conical-like cavity between the spray orifice 12 and the gap 7 by using the third shell 203, so as to guide the paint mist 6 to spray towards the paint repair face 100, and a guide channel with a specific structure is provided for spraying the paint mist 6, namely, the third shell 203 is used for realizing rigid partition of spraying the paint mist 6, so as to avoid influence of the vacuum region on the paint mist region on the region, and better control the flow direction of various spray guns in the spray guns.
Further, an annular air jet pipe is arranged at one end of the air jet channel 2 facing the paint repair surface 100, one end surface of the air jet pipe is vertically connected to the end surface between the second end of the first shell 201 and the second end of the second shell 202, and air jet ports 21 are uniformly arranged at the other end surface of the air jet pipe. The air jet pipe can guide the air in the paint spraying channel 1 to spray towards the paint repairing surface 100 vertically so as to ensure that the sprayed air forms a conical area in the gap 7 and has the largest air seal coverage area on the paint repairing surface 100, and can also ensure that all air flow impact areas formed on the paint repairing surface 100 are connected and/or partially overlapped so as to ensure that the annular air seal layer continuously surrounds the periphery of the paint mist 6.
According to the paint spraying nozzle device 200 disclosed by the embodiment of the invention, the positive pressure air seal layer and the negative pressure suction air flow area are established around the conical area of the paint mist 6, so that a local vacuum area is formed between the air seal layer and the paint mist 6, as shown in fig. 2, the air flow flowing back to the inner side by the air seal layer is used for guiding the flowing direction of the paint mist 6, and the suction channel 3 is used for guiding the flowing direction of the mixed flow after the air seal layer backflow air flow and the paint mist 6 leakage air flow are mixed, so that the effect of completely avoiding the paint mist 6 leakage is achieved.
Specifically, as shown in fig. 2, when the air seal air flow 8 with the same flow rate as the paint mist 6 is input to the periphery of the paint mist 6 at the contact position of the paint mist 6 and the paint repair surface 100, a pressure balance area is necessarily formed between the air seal air flow 8 and the air flow leaked from the paint mist 6, so that the paint mist 6 cannot diffuse outwards through the air seal air flow 8. Further, when the mixed air flow 9 in the pressure balance area is sucked, the mixed air flow 9 formed by the balanced air seal air flow 8 and the air flow leaked by the paint mist 6 is sucked out by the suction channel 3, so that not only can the movement states of various air flows be controlled and the air flow leaked by the paint mist 6 be ensured to be guided and not to overflow, but also a local vacuum area can be formed between the air seal layer and the paint mist 6, and the air seal effect and the air seal strength of the air seal layer are enhanced.
Based on this, the embodiment of the invention gives a specific experimental example to verify the amount of gas seal required for the formation of the pressure balance area.
As shown in fig. 3, the end face of the spray gun nozzle facing the paint make-up surface 100 during the paint spraying operation is set to be a spray surface, the gap 7 distance between the spray surface and the paint make-up surface 100 is set to be H, the distance between the spray orifice 12 and the spray surface is set to be H1, and the distance between the spray orifice 12 and the paint make-up surface 100 is set to be H2.
The jet orifice 12 is a W-71-3G type nozzle, and the nozzle has the characteristics that the diameter of the jet orifice 12 is 1.5mm, the spraying air pressure is 0.29Mpa, the air quantity sprayed in unit time is 165L/min, and the spraying width D is 185mm.
The proper distance between the spray gun and the paint repair surface 100 of the component is maintained according to the conventional operation standard of the spray painting operation, and the distance H2 is about 200mm in general, so that the included angle alpha of the conical area of the paint mist 6 is 50 degrees, and the area of the projection area of the paint mist 6 on the paint repair surface 100 is 0.027m 2.
Given an air consumption of 165L/min for spraying, the vertical velocity V that it develops on the paint make-up surface 100 is:
as shown in fig. 3, 50% of the gas in the gas seal layer plays a role in gas seal, and the fluid quantity Q of the gas seal layer is 2 times that of the paint mist 6 to be sealed, namely q=0.165×2=0.33 m 3/min.
In order to keep the same gas flow state of the paint mist 6 and the air seal layer, the vertical flow velocity V of the air seal air flow 8 is set to be 6m/min, and the required flow area F of the air seal layer is set to be
The known gas seal layer has an annular gap diameter of 0.22m, and the following are given that the annular gap width is L:
When the fluid amount Q of the gas seal layer is obtained, the flow rate of the mixed gas flowing into the exhaust passage 5 can be further determined. Specifically, as shown in fig. 3, the amount of paint mist entering the suction channel 3 per unit time is 165L/min, and the amount of fluid entering the air-seal layer in the suction channel 3 per unit time is 165L/min, so that the total extraction amount is 165×2=330L/min.
It should be noted that, due to the existence of the local vacuum area, there must be a certain amount of paint mist 6 in the above structure that directly enters the suction channel 3 without blocking by the air seal layer. The amount of paint mist entering the suction channel 3 is a variable, which can be determined in particular from measured data.
The operation position determined in this specific experimental example is an assumed position. In the actual operation process, the pressure balance between the paint mist 6 and the air seal layer can be ensured by adjusting the air seal quantity, the jet direction of the air seal air flow 8 and the relative position of the leakage air flow formed by the paint mist 6.
It can be understood that the air sealing layer is inclined towards the axial direction of the paint mist 6, so that a better air sealing effect is achieved.
Based on the paint spray nozzle device 200 described above, an embodiment of the present invention provides a paint spray apparatus. As shown in fig. 4, the paint spray apparatus includes the paint spray nozzle device 200 described above, a supply assembly, a gas seal assembly, and a post-treatment assembly. Wherein a feed assembly for providing a flow of air mixed with paint into the paint spray booth 1 is connected to the paint booth 1 of the paint spray nozzle device 200. A gas seal assembly is connected to the gas injection channel 2 of the spray nozzle device 200 for providing a gas seal gas flow 8 into the gas injection channel 2 for generating a gas seal. The post-treatment component is connected to the suction channel 3 of the spray nozzle device 200, and is used for extracting the mixed air flow 9 from the suction channel 3 and carrying out post-treatment on the paint mist 6 mixed in the mixed air flow 9, so that the exhaust emission of the device can meet the requirements of relevant environmental protection standards.
As shown in fig. 4, the feed assembly includes a compressor 300 and a paint line a. Paint line a is connected to paint inlet 11 of paint spray channel 1 and compressor 300 is connected to either paint line a or paint inlet 11 via first line 810. Compressor 300 is capable of providing a compressed air flow to paint line a or paint channel to drive paint into the spray gun nozzle. A valve 700 is preferably provided on the first conduit 810 to control the on-off of the air flow in the first conduit 810.
Further, the air seal assembly includes an air intake blower 400. The air intake fan 400 is connected to the air inlet 41 of the air injection channel 2 through the second pipeline 820, so that air is injected into the air injection channel 2 through the air inlet 41 by using the air intake fan 400 to form the air seal air flow 8. Alternatively, the first pipeline 810 and the second pipeline 820 can be connected through the third pipeline 830, so that the same compressor 300 is utilized to simultaneously provide the airflow for paint movement and the air seal airflow 8, thereby reducing the production cost of the equipment, facilitating the installation and debugging on site and convenient use, and reducing the difficulty in acquiring airflow power. A valve 700 is preferably provided on the third conduit 830 to control the flow of air in the third conduit 830 as desired for use.
In order to prevent the discharged paint mist 6 from affecting the surrounding environment, it is preferable that the post-treatment assembly includes a paint remover 500 and an exhaust fan 600, and the paint remover 500 is used to remove the paint mist 6 mixed in the mixed air flow 9 sucked out from the suction channel 3 so that the external exhaust gas can meet the environmental requirements.
As shown in fig. 5 and 6, the paint remover 500 preferably includes a housing 510 and an outlet tube 520. The housing 510 is filled with an adsorption liner 511, and the suction channel 3 is connected to the adsorption liner 511, so that paint mist droplets mixed in the air flow discharged from the suction channel 3 are adsorbed to the adsorption liner 511, and the discharged air is purified. One end of the air outlet pipe 520 extends into the housing 510, and the other end of the air outlet pipe 520 is connected with the air exhaust fan 600, so that purified air is exhausted from the air outlet pipe 520 under the driving of the air exhaust fan 600. Preferably, the shell 510 is provided with a cover 530, the cover 530 is closed on the shell 510 and has a sealing function, and the absorbing lining layer 511 in the shell 510 can be replaced after the cover 530 is opened, so that the paint remover 500 can have a long service life.
It is understood that the exhaust fan 600 is connected to an exhaust line B through which exhaust gas of the paint spraying apparatus is discharged.
Based on the paint spray nozzle device 200 or the paint spray apparatus described above, the embodiment of the present invention provides a paint spray method. The painting method is performed by the above-described paint spray nozzle device 200, or by the above-described paint spray apparatus;
the paint spraying method comprises the following steps:
synchronously spraying an air seal layer and conical paint mist 6 to the paint repair surface 100 by using a paint spray nozzle device 200, wherein the air seal layer surrounds the paint mist 6 in an annular shape;
a localized vacuum zone is created between the air seal and the paint mist 6 using the spray nozzle assembly 200.
It can be appreciated that, since the paint spraying method is performed by the paint spraying nozzle device 200, the detailed implementation process of the paint spraying method is detailed in the part of the paint spraying nozzle device 200, and the detailed description thereof will be omitted herein, and the paint spraying method has all the advantages of the paint spraying nozzle device 200, and the detailed description thereof will be omitted herein.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The above embodiments are only for illustrating the present invention, and are not limiting of the present invention. While the invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and it is intended to be covered by the scope of the claims of the present invention.
Claims (7)
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| CN113414039B (en) * | 2021-05-25 | 2022-06-14 | 安庆中船柴油机有限公司 | Gas filtering system of marine component spraying production line |
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