CN114681851B - High-temperature-resistant fireproof connecting structure of air pipe - Google Patents
High-temperature-resistant fireproof connecting structure of air pipe Download PDFInfo
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- CN114681851B CN114681851B CN202210324443.0A CN202210324443A CN114681851B CN 114681851 B CN114681851 B CN 114681851B CN 202210324443 A CN202210324443 A CN 202210324443A CN 114681851 B CN114681851 B CN 114681851B
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- shell
- temperature
- rotating shaft
- foam liquid
- throat
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
- A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Safety Valves (AREA)
Abstract
The application relates to the technical field of air pipes, and particularly discloses a high-temperature-resistant fireproof connecting structure of an air pipe, which comprises a shell and connectors, wherein the shell is horizontally arranged along the direction of the pipeline, the left end and the right end of the shell are provided with the connectors capable of being connected with the air pipe, and a partition device, an inlet section, a contraction section, a throat and a release section are sequentially arranged in the shell from left to right; the partition device is vertically arranged in the shell, the left end of the shell can be sealed through the partition device, the partition device comprises a control unit, a rotating shaft, a temperature sensor and blades, a middle shaft of each blade penetrates through the rotating shaft, the temperature sensor is fixed outside the rotating shaft, one end of the rotating shaft penetrates through the shell to be connected with the control unit, and the blades can be controlled to rotate by connecting the upper end of the rotating shaft with the control unit; the shell is externally provided with a foam liquid tank, foam liquid is filled in the foam liquid tank, the foam liquid tank is communicated with one end of the throat, the other end of the throat is provided with a temperature-sensitive glass ball, and the temperature-sensitive glass ball contains temperature-sensitive expansion liquid. The scheme can timely control and isolate open fire in the flue by sucking the open fire into the flue, thereby playing a certain delay emergency role.
Description
Technical Field
The invention relates to the technical field of air pipes, in particular to a high-temperature-resistant fireproof connecting structure of an air pipe.
Background
For a building with complicated and intricate pipelines, fire prevention measures and fire safety problems are indispensably required to be considered in the engineering construction process, a special flue for removing kitchen oil smoke is arranged in a catering place with a certain scale at present, the trend of the general flue is random, and once the flue catches fire, dense smoke rolls off due to improper treatment, so that fire can quickly spread and expand to the building, life and property safety of personnel in the building is threatened, and unnecessary loss and panic are easily caused to peripheral areas. The oil flue fire is mostly caused by that open fire is sucked into a flue and residual oil dirt in the flue is ignited, and the flue is a relatively closed space, so that the open fire is difficult to find in time after the open fire is sucked into the flue and the oil dirt is ignited, and when the open fire is found, the whole flue is filled with the open fire, the best fire fighting opportunity is missed, so that the fire intensity is enlarged, and therefore a new technical scheme is urgently needed to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant fireproof connecting structure of an air pipe, which is used for controlling open fire in time when the open fire is sucked into a flue and isolating the open fire to play a certain delay emergency role.
The basic scheme of the invention is as follows: a high-temperature-resistant fireproof connection structure of an air pipe comprises a shell and connectors, wherein the shell is horizontally arranged along the direction of a pipeline, the left end and the right end of the shell are provided with the connectors capable of being connected with the air pipe, and a partition device, an inlet section, a contraction section, a throat and a release section are sequentially arranged in the shell from left to right; the partition device is vertically arranged in the shell, the left end of the shell can be sealed through the partition device, the partition device comprises a control unit, a rotating shaft, a temperature sensor and blades, a central shaft of each blade penetrates through the rotating shaft, the temperature sensor is fixed outside the rotating shaft, one end of the rotating shaft penetrates through the shell to be connected with the control unit, and the blades can be controlled to rotate by connecting the control unit with the upper end of the rotating shaft; a foam liquid box is arranged outside the shell, foam liquid is filled in the foam liquid box, the foam liquid box is communicated with one end of the throat, a temperature-sensitive glass ball is arranged at the other end of the throat, and temperature-sensitive expansion liquid is contained in the temperature-sensitive glass ball.
The beneficial effect of this scheme does:
1. by arranging the partition device, the pipeline can be closed when the open fire temperature is too high, the open fire spreading path is isolated, and the possibility of fire expansion is delayed.
2. The temperature-sensing glass ball is arranged, and when the temperature in the pipeline reaches a certain temperature, the temperature-sensing expansion liquid in the temperature-sensing glass ball expands to break the temperature-sensing glass ball so as to open the throat.
3. The change of the structure in the shell is utilized to mix foam liquid and air to form fire extinguishing foam to cover the surface of flammable liquid in the shell, so that on one hand, the fire extinguishing foam can absorb heat to capture the temperature to cool the inner surface of the shell, and on the other hand, the foam can cover to form an isolation layer to isolate the contact between the air and the inner surface of the shell.
The first preferred scheme is as follows: as the further optimization to the basic scheme, the control unit comprises an outer box, a rotating shaft hook, a limiting hook and a tension spring, the outer box is fixed above the shell, the limiting hook is hinged with the bottom surface inside the outer box, the rotating shaft hook is fixed at one end of a rotating shaft penetrating through the shell and connected with a handle penetrating through the outer box, the end part of the rotating shaft hook is limited by the head part of the limiting hook, the tension spring is connected between the tail part of the limiting hook and the box body, and the head part of the limiting hook is connected with a manual pull ring. The manual pull ring is adopted to control the isolation device to be opened and closed, the isolation device can be manually started when the control circuit is abnormal, and the blade can be rotated and reset by using the handle when the isolation device is overhauled daily.
The preferred scheme II is as follows: as a further optimization of the first preferred scheme, a controller is arranged on the box body, a first magnet is fixed at the head of the limiting hook, an electromagnet is arranged outside the limiting hook, the electromagnet and the temperature sensor are electrically connected with the controller, and the first magnet can be attracted by electrifying the electromagnet to enable the limiting hook to rotate anticlockwise. The closing of the blades is controlled by adopting a mode of transmitting an electric signal by a controller, and the device can be uniformly controlled by a fire control center through a circuit.
The preferable scheme is three: as a further optimization of the second preferred embodiment, the inner walls of the shell are coated with fireproof materials. The fireproof coating has the characteristics of fire resistance and flame retardance, and can protect the structure from being damaged by temperature.
The preferable scheme is four: as a further optimization of the third preferred embodiment, the foam concentrate is an AFFF foam concentrate. The water film-forming foam is suitable for extinguishing fire caused by water insoluble liquid fuel, and the foaming agent has no toxicity and no harm to human skin.
The preferable scheme is five: as a further optimization of the preferred embodiment, the interface is a flange interface. The flange interface is adopted to ensure that the whole device is convenient to assemble and disassemble, and the flange has high connection strength and is convenient to be connected with other pipelines.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
FIG. 2 is a schematic top view of the control unit of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a shell 10, a port 101, an inlet section 11, a contraction section 12, a throat 13, a release section 14, a temperature-sensitive glass ball 15, a foam liquid tank 16, a partition device 20, a control unit 21, an outer box 210, a rotating shaft hook 211, a limiting hook 212, a tension spring 213, a first magnet 214, an electromagnet 215, a manual pull ring 216, a handle 217, a controller 218, a rotating shaft 22, a temperature sensor 23, a blade 24, a floor 31, a hanger 32 and a firewall 33.
The embodiments are substantially as shown in figures 1 to 2 of the accompanying drawings:
the utility model provides a high temperature resistant fire prevention connection structure of tuber pipe, as shown in figure 1, including casing 10, interface 101, casing 10 is the pipeline form, casing 10 sets up along pipeline direction level, both ends set up the interface 101 of joinable tuber pipe about casing 10, interface 101 is flange interface 101, high strength, be convenient for loading and unloading, accessible gallows 32 is fixed between casing 10 and the floor 31, also can pass fire prevention wall 33 with casing 10 and joint with fire prevention mud, the shell inner wall all scribbles fire-proof material, fire-proof material has fire-resistant, fire-retardant characteristic, and can protect the structure not receive the destruction of temperature.
As shown in fig. 1, a partition device 20, an inlet section 11, a contraction section 12, a throat 13 and a release section 14 are sequentially arranged in a shell 10 from left to right; a foam liquid tank 16 is arranged outside the shell 10, AFFF foam liquid is filled in the foam liquid tank 16, the foam liquid tank 16 is communicated with one end of the throat 13, a temperature-sensitive glass ball 15 is arranged at the other end of the throat 13, temperature-sensitive expansion liquid is contained in the temperature-sensitive glass ball 15, the temperature-sensitive glass ball is fixed in the throat above the contraction section, and one end of the throat 13, which is close to the contraction section, is sealed. The temperature-sensing glass ball is a fire-fighting sprinkler head glass ball, wherein the working liquid is high-expansion-rate liquid which can be boiled at low temperature, the working liquid in the glass ball is high-expansion-rate liquid which can be boiled at low temperature, ester, alcohol, ether and the like are selected according to different action temperatures, and as long as the working temperature is slightly changed and the volume is expanded, large internal pressure can be generated to break a glass body to enable the sprinkler head to act. When the temperature in the pipeline reaches 70 ℃, the temperature sensing expansion liquid expands to enable the temperature sensing glass balls 15 to be broken, at the moment, the throat 13 is communicated with the contraction section 12, when the smoke exhaust system sucks and exhausts air from the left side to the right side of the pipeline, because the caliber of the inlet section 11 is larger than that of the contraction section 12, the flow velocity of the air flow is accelerated, negative pressure is generated at the throat 13, the negative pressure enables foam liquid in the foam liquid box 16 to enter the release section 14 through the throat 13, and the foam liquid foams under the mixing of the air and the foam liquid.
As shown in fig. 1, the partition device 20 is vertically disposed in the casing 10, the left end of the casing 10 can be sealed by the partition device 20, the partition device 20 includes a control unit 21, a rotating shaft 22, a temperature sensor 23 and blades 24, the rotating shaft 22 is fixed at the center axis of the blades 24, the temperature sensor 23 is fixed outside the rotating shaft 22, the temperature sensor 23 can monitor the temperature in the pipeline, one end of the rotating shaft 22 penetrates through the casing 10 and is connected with the control unit 21, and the blades 24 can be controlled to rotate by the upper end of the control unit 21 connected with the rotating shaft 22.
As shown in fig. 2, the control unit 21 includes an outer box 210, a rotating shaft hook 211, a limit hook 212, and a tension spring 213, the outer box 210 is fixed above the casing 10, the limit hook 212 is hinged on the bottom surface inside the outer box 210, the rotating shaft hook 211 is fixed on one end of a rotating shaft 22 passing through the casing 10 and connected with a handle 217 passing through the outer box 210, the end of the rotating shaft hook 211 is limited by the head of the limit hook 212, the tension spring 213 is connected between the tail of the limit hook 212 and the box body, and the head of the limit hook 212 is connected with a manual pull ring 216 through a steel cable. When the pulling ring, spacing couple 212 breaks away from with pivot couple 211, the cover has the torsional spring in pivot couple 211's the axis of rotation, pivot couple 211 rotates clockwise under the effect of torsional spring, it rotates with blade 24 to drive pivot 22 simultaneously, the pipeline inner wall is fixed with two vertical chimbs, the chimb is located the both ends of blade horizontal diameter, two chimbs are close to the two sides of blade respectively, when the blade is closed, the chimb is spacing respectively in the blade both sides, the pipeline seals, can rotate handle 217 counterclockwise during daily maintenance, drive pivot couple 211 and spacing couple 212 block, with this blade 24 that resets.
The head of the limiting hook 212 is fixed with a first magnet 214, an electromagnet 215 is arranged outside the limiting hook 212, a controller is installed on the box body, the electromagnet 215 and the temperature sensor 23 are electrically connected with the controller, the electromagnet 215 is electrified to enable opposite magnetic poles of the electromagnet 215 and the first magnet 214 to be opposite, so that the limiting hook 212 rotates anticlockwise, when the temperature sensor 23 monitors that the temperature reaches 120 ℃, the temperature sensor 23 sends an electric signal to the controller, and the controller is electrified to the electromagnet 215 to close the blade 24.
The specific implementation process is as follows:
the air flow in the flue flows from left to right, the temperature of the flue gas is generally not higher than 50 ℃ after being transmitted by the pipeline of the range hood, when the temperature in the flue reaches 70 ℃, the temperature-sensitive glass ball 15 is broken, the air flow passes through the contraction section 12 from the inlet section 11, under the Venturi effect, the foam liquid enters the throat 13 and is mixed and foamed with the air flow at the release section 14, the generated foam covers the inner wall of the shell to play a role in cooling and isolating, if the foam cannot play a role in fire extinguishing, the temperature in the pipeline rises, the temperature sensor 23 detects the temperature, once the temperature reaches 120 ℃, the controller starts the electromagnet 215, under the attraction force of the electromagnet 215 and the magnet I214, the limit hook 212 is separated from the rotating shaft hook 211, the rotating shaft hook 211 loses the limit and rotates clockwise under the action of the torsion spring, the rotating shaft 22 and the blades 24 are driven to rotate, and when the blades 24 rotate to be horizontal to the section of the pipeline, the firewall pipeline is closed, and the fire behavior is prevented from spreading to other areas towards the right side 33.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (4)
1. The utility model provides a high temperature resistant fire prevention connection structure of tuber pipe, includes casing, interface, its characterized in that: the shell is horizontally arranged along the direction of the pipeline, the left end and the right end of the shell are provided with connectors capable of being connected with the air pipes, and a partition device, an inlet section, a contraction section, a throat and a release section are sequentially arranged in the shell from left to right;
the partition device is vertically arranged in the shell, the left end of the shell can be sealed through the partition device, the partition device comprises a control unit, a rotating shaft, a temperature sensor and blades, a middle shaft of each blade penetrates through the rotating shaft, the temperature sensor is fixed outside the rotating shaft, one end of the rotating shaft penetrates through the shell to be connected with the control unit, and the blades can be controlled to rotate by connecting the upper end of the rotating shaft with the control unit;
the control unit comprises an outer box, a rotating shaft hook, a limiting hook, a tension spring and a handle, wherein the outer box is fixed above the shell, the limiting hook is hinged with the bottom surface inside the outer box, the rotating shaft hook is fixed at one end of a rotating shaft penetrating through the shell and connected with the handle penetrating through the outer box, the end part of the rotating shaft hook is limited by the head part of the limiting hook, the tension spring is connected between the tail part of the limiting hook and the box body, and the head part of the limiting hook is connected with a manual pull ring; the box body is provided with a controller, a first magnet is fixed at the head of the limiting hook, an electromagnet is arranged outside the limiting hook, the electromagnet and the temperature sensor are both electrically connected with the controller, and the first magnet can be attracted by electrifying the electromagnet to enable the limiting hook to rotate anticlockwise;
the shell is externally provided with a foam liquid tank, foam liquid is filled in the foam liquid tank, the foam liquid tank is communicated with one end of the throat, the other end of the throat is provided with a temperature-sensitive glass ball, the temperature-sensitive glass ball contains temperature-sensitive expansion liquid, when the temperature in the pipeline reaches 70 ℃, the temperature-sensitive expansion liquid expands to enable the temperature-sensitive glass ball to break, and at the moment, the throat is communicated with the contraction section.
2. The high-temperature-resistant fireproof connection structure of the air pipe according to claim 1, wherein: and the inner walls of the shell are coated with fireproof materials.
3. The high-temperature-resistant fireproof connection structure of the air pipe according to claim 2, wherein: the foam liquid is AFFF foam liquid.
4. The fire-resistant connection structure for the air duct according to claim 3, wherein: the interface is a flange interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210324443.0A CN114681851B (en) | 2022-03-29 | 2022-03-29 | High-temperature-resistant fireproof connecting structure of air pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210324443.0A CN114681851B (en) | 2022-03-29 | 2022-03-29 | High-temperature-resistant fireproof connecting structure of air pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114681851A CN114681851A (en) | 2022-07-01 |
| CN114681851B true CN114681851B (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210324443.0A Active CN114681851B (en) | 2022-03-29 | 2022-03-29 | High-temperature-resistant fireproof connecting structure of air pipe |
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| Country | Link |
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| CN (1) | CN114681851B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413468A (en) * | 1971-07-10 | 1975-11-12 | Macbean D G | Exhaust means |
| CN1684741A (en) * | 2002-07-25 | 2005-10-19 | 奥尔登·奥兹门特 | Method and apparatus for extinguishing a fire in an enclosed area |
| CN211345364U (en) * | 2019-12-04 | 2020-08-25 | 西安交通大学 | Boiler explosion soot blower utilizing Venturi to inject flame retardation of inert gas |
| CN112128431A (en) * | 2019-06-25 | 2020-12-25 | 宁波方太厨具有限公司 | One-way valve and gas water heater using same |
-
2022
- 2022-03-29 CN CN202210324443.0A patent/CN114681851B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413468A (en) * | 1971-07-10 | 1975-11-12 | Macbean D G | Exhaust means |
| CN1684741A (en) * | 2002-07-25 | 2005-10-19 | 奥尔登·奥兹门特 | Method and apparatus for extinguishing a fire in an enclosed area |
| CN112128431A (en) * | 2019-06-25 | 2020-12-25 | 宁波方太厨具有限公司 | One-way valve and gas water heater using same |
| CN211345364U (en) * | 2019-12-04 | 2020-08-25 | 西安交通大学 | Boiler explosion soot blower utilizing Venturi to inject flame retardation of inert gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114681851A (en) | 2022-07-01 |
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