CN215901226U

CN215901226U - VOCs exhaust-gas treatment purifier

Info

Publication number: CN215901226U
Application number: CN202122023243.5U
Authority: CN
Inventors: 庞国钧; 庞博文
Original assignee: Shandong Shuofeng Environmental Protection Equipment Co ltd
Current assignee: Shandong Shuofeng Environmental Protection Equipment Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-02-25
Anticipated expiration: 2031-08-26

Abstract

The utility model relates to the technical field of waste gas treatment, and provides a VOCs waste gas treatment and purification device, which comprises a heat exchange mechanism and a combustion mechanism; the heat exchange mechanism comprises a heat exchange box, and a heat exchange tube and a filter layer are arranged in the heat exchange box; the top of the heat exchange box is provided with a pressure valve; the pressure valve is provided with an air outlet which is connected with the combustion mechanism; and the pressure valve is also internally provided with a piston block which moves upwards to enable the heat exchange box to be communicated with the air outlet hole when the pressure is higher than the preset pressure. Therefore, waste gas enters from the bottom of the heat exchange box, circulating water is introduced into the heat exchange tubes, waste heat in the waste gas is exchanged, and heat recycling is achieved. The pressure valve at the top of the heat exchange box enables the waste gas to remain in the heat exchange box for enough time, and full heat exchange is realized.

Description

VOCs exhaust-gas treatment purifier

Technical Field

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a VOCs waste gas treatment and purification device.

Background

The main pollutants in the exhaust gas include: VOCs (volatile organic compounds), hydrogen sulfide, hydrogen chloride, ammonia, and non-methane total hydrocarbons. Besides making people feel uncomfortable, malodorous gases such as hydrogen sulfide, hydrogen chloride, ammonia and the like have great harm to human bodies. Volatile Organic Compounds (VOCs) are organic compounds having a saturated vapor pressure at ambient temperature of greater than about 70Pa and a boiling point at ambient pressure of less than 250 ℃. Volatile Organic Compounds (VOCs) include: alkanes, aromatics, olefins, alcohols, ethers and the like are the most common pollutants and have great destructive effect on the environment.

The existing treatment equipment neglects the recycling of the waste heat in the waste gas, and causes certain waste.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the above drawbacks, the present invention aims to provide a device for treating and purifying VOCs waste gas, wherein waste gas enters from the bottom of a heat exchange box, circulating water is introduced into a heat exchange tube, and waste heat in the waste gas is exchanged, so that heat recycling is realized. The pressure valve at the top of the heat exchange box enables the waste gas to remain in the heat exchange box for enough time, and full heat exchange is realized.

In order to achieve the aim, the utility model provides a VOCs waste gas treatment and purification device, which comprises a heat exchange mechanism and a combustion mechanism;

the heat exchange mechanism comprises a heat exchange box, and a heat exchange tube and a filter layer are arranged in the heat exchange box;

the top of the heat exchange box is provided with a pressure valve; the pressure valve is provided with an air outlet which is connected with the combustion mechanism; and the pressure valve is also internally provided with a piston block which moves upwards to enable the heat exchange box to be communicated with the air outlet hole when the pressure is higher than the preset pressure.

According to the VOCs waste gas treatment and purification device, the filter layer is positioned above the heat exchange tube.

According to the VOCs waste gas treatment and purification device, the heat exchange pipe is a coil pipe.

According to the VOCs waste gas treatment and purification device, a pressure spring abutting against a piston block is arranged in the pressure valve.

According to the VOCs waste gas treatment and purification device, the heat exchange mechanism comprises a gas mixing pipe, and a heating cylinder is arranged right above the gas mixing pipe; a plurality of combustion nozzles are arranged on the gas mixing pipe at equal intervals; an air inlet is also formed in one side of the air mixing pipe;

the gas mixing pipe is connected with the catalytic chamber, and an ultraviolet light tube is arranged on the inner wall of the catalytic chamber; the bottom of the catalytic chamber is connected with the pressure valve.

According to the VOCs waste gas treatment and purification device, the two sides of the gas mixing pipe are respectively provided with an arc-shaped smoke cover; a smoke channel is formed between the smoke hood and the wall of the heating cylinder; the top of the smoke channel is provided with a smoke outlet.

According to the VOCs waste gas treatment and purification device, the heating cylinder is connected with the water storage cylinder through the water pipe; the position of the water storage cylinder is higher than that of the heating cylinder; a water outlet and a water inlet are formed in the water storage barrel; and a water storage temperature sensor is also arranged on the water storage barrel.

The utility model aims to provide a VOCs waste gas treatment and purification device, which is characterized in that waste gas enters from the bottom of a heat exchange box, circulating water is introduced into a heat exchange tube, waste heat in the waste gas is exchanged, and heat recycling is realized. The pressure valve at the top of the heat exchange box enables the waste gas to remain in the heat exchange box for enough time, and full heat exchange is realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a portion of the region of FIG. 1;

FIG. 3 is a schematic structural view of an embodiment of the combustion mechanism of the present invention;

FIG. 4 is a schematic structural view of a portion of the region of FIG. 3;

FIG. 5 is a schematic view of the structure in the direction A of FIG. 4;

in the figure: 1-gas mixing pipe, 11-smoke hood, 12-smoke outlet, 13-catalytic chamber, 14-ultraviolet light tube, 15-air inlet, 16-fuel gas inlet and 17-burner; 2-a heating cylinder, 21-a water storage cylinder, 22-a water through pipe, 23-a water storage temperature sensor, 24-a water outlet and 25-a water inlet; 3-heat exchange box, 31-heat exchange tube, 32-filter layer, 33-pressure valve, 34-piston block, 35-pressure spring; 100-combustion mechanism.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Referring to fig. 1, the present invention provides a device for treating and purifying VOCs waste gas, comprising a heat exchange mechanism and a combustion mechanism 100;

the heat exchange mechanism comprises a heat exchange box 3, and a heat exchange tube 31 and a filter layer 32 are arranged in the heat exchange box 3; waste gas enters from the bottom of the heat exchange box 3, circulating water is introduced into the heat exchange tube 31, waste heat in the waste gas is exchanged away, and heat recycling is achieved. The filter layer 32 removes particulate impurities such as soot from the exhaust gas. Better, heat exchange tube 31 is the coil pipe, increases area of contact and improves the heat transfer effect. Further, the filter layer 32 is located above the heat exchange tube 31, so that the flow velocity of the waste gas is reduced, and sufficient heat exchange is realized.

The top of the heat exchange box 3 is provided with a pressure valve 33; referring to fig. 2, the pressure valve 33 has an air outlet connected to the combustion mechanism 100; the pressure valve 33 is also internally provided with a piston block 34 which moves upwards to enable the heat exchange box 3 to be communicated with the air outlet hole when the pressure is higher than the preset pressure;

the weight of the piston block 34 can be set by a person skilled in the art according to the composition of the exhaust gases so as to limit the pressure at which it is pushed up, so that the exhaust gases remain in the heat exchange box 3 for a sufficient time to achieve adequate heat exchange.

Further, a pressurizing spring 35 abutting against the piston block 34 is provided in the pressure valve 33; the opening pressure of the piston block 34 is increased, and the heat exchange effect is improved.

The waste gas after heat exchange and filtration is fully combusted through the combustion mechanism 100 to realize clean discharge.

Referring to fig. 3, as an embodiment, the combustion mechanism 100 of the present invention includes a gas mixing pipe 1, and a heating cylinder 2 is disposed right above the gas mixing pipe 1; with reference to fig. 4 and 5, a plurality of burners 17 are arranged on the gas-mixing pipe 1 at equal intervals; an air inlet 15 is also formed in one side of the air mixing pipe 1; VOCs waste gas enters the gas mixing pipe 1 and is combusted at the combustion nozzle 17; air is introduced from the air inlet 15, so that the VOCs waste gas can be sufficiently combusted, and the heat generated by combustion is used for heating water in the heating cylinder 2, thereby avoiding waste of heat.

Further, one side of the gas mixing pipe 1 is also provided with a gas inlet 16, and when waste gas is less, gas is introduced from the gas inlet 16 for auxiliary combustion, so that flame extinguishment is avoided.

More preferably, the number of the burner tips 17 is at least 8, preferably 10 to 12.

The gas mixing pipe 1 is connected with a catalytic chamber 13, and an ultraviolet light tube 14 is arranged on the inner wall of the catalytic chamber 13. The ultraviolet light tube 14 emits UV ultraviolet light to crack malodorous gases in the VOCs waste gas. The bottom of the catalyst chamber 13 is connected to a pressure valve 33.

Preferably, two sides of the gas mixing pipe 1 are respectively provided with an arc-shaped smoke hood 11; a smoke channel is formed between the smoke hood 11 and the wall of the heating cylinder 2; the flue gas that the burning produced passes through from the flue gas passageway, has certain heating effect to the water in the cartridge heater 2, make full use of waste heat. The top of the flue gas channel is provided with a flue gas outlet 12.

As an embodiment, the heating cylinder 2 is connected with the water storage cylinder 21 through a water pipe 22; the position of the water storage cylinder 21 is higher than that of the heating cylinder 2; the hot water in the heating cylinder 2 rises from the water pipe 22 and enters the water storage cylinder 21, and the cold water in the water storage cylinder 21 falls from the water pipe 22 and enters the heating cylinder 2, so that the circulation convection is formed.

Preferably, the water storage cylinder 21 is provided with a water outlet 24 and a water inlet 25; a water storage temperature sensor 23 is also arranged on the water storage barrel 21; when the temperature of the water in the water storage cylinder 21 reaches a preset value, the water outlet 24 and the water inlet 25 are opened to lead out hot water and simultaneously supply cold water.

In summary, the utility model provides a VOCs waste gas treatment and purification device, waste gas enters from the bottom of a heat exchange box, circulating water is introduced into a heat exchange tube, waste heat in the waste gas is exchanged, and heat recycling is realized. The pressure valve at the top of the heat exchange box enables the waste gas to remain in the heat exchange box for enough time, and full heat exchange is realized.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A VOCs waste gas treatment and purification device is characterized by comprising a heat exchange mechanism and a combustion mechanism;

2. A VOCs waste gas treatment purification apparatus as claimed in claim 1, wherein the filter layer is located above the heat exchange tubes.

3. A VOCs waste gas treatment and purification device as claimed in claim 2, wherein said heat exchange tubes are coiled tubes.

4. The VOCs exhaust treatment purification device of claim 1, wherein a compression spring abutting against a piston block is arranged in the pressure valve.

5. The VOCs waste gas treatment and purification device of any one of claims 1-4, wherein the heat exchange mechanism comprises a gas mixing pipe, and a heating cylinder is arranged right above the gas mixing pipe; a plurality of combustion nozzles are arranged on the gas mixing pipe at equal intervals; an air inlet is also formed in one side of the air mixing pipe;

6. A VOCs waste gas treatment and purification device according to claim 5, wherein an arc-shaped smoke hood is respectively arranged on two sides of the gas mixing pipe; a smoke channel is formed between the smoke hood and the wall of the heating cylinder; the top of the smoke channel is provided with a smoke outlet.

7. The apparatus of claim 6, wherein the heating cylinder is connected to the water storage cylinder through a water pipe; the position of the water storage cylinder is higher than that of the heating cylinder; a water outlet and a water inlet are formed in the water storage barrel; and a water storage temperature sensor is also arranged on the water storage barrel.