Gas neutralization equipment

Abstract

The utility model discloses gas neutralization equipment and belongs to the technical field of acetylene gas production devices. A tank body in the gas neutralization equipment is provided with a gas inlet and a gas outlet, the washing mechanism comprises a coil pipe and a filler layer which are arranged in the tank body, and the coil pipe is provided with a nozzle; in the height direction of the tank body, the gas outlet, the packing layer, the coil pipe and the gas inlet are sequentially arranged from top to bottom, so that gas conveyed by the gas inlet can flow upwards to form convection with washing liquid which is sprayed by the nozzle and flows downwards, and full contact of the gas and the washing liquid can be promoted. Along with continuous upward flowing of the gas, the gas can penetrate through the filler layer, the filler layer is formed by filling of the drying agent filler, the porous structure of the filler layer can prolong the flowing path of the gas and prolong the neutralization reaction time of the gas, and the drying agent filler can dry the neutralized gas and reduce the humidity of the gas discharged from the gas outlet; the gas neutralization effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of acetylene gas production equipment, and in particular to an acetylene gas neutralization and purification device. Background Art

[0002] The production of acetylene black requires large quantities of acetylene gas. Currently, industrial production of acetylene gas generally utilizes the calcium carbide process. Calcium carbide produces crude acetylene gas in a generator. After passing through a sodium hypochlorite purification tower and a sodium hydroxide neutralization tower to remove sulfur and phosphorus impurities, the acetylene gas contains spent ammonium hypochlorite. Therefore, a flash evaporation system is required to extract the acetylene gas from this spent ammonium hypochlorite. However, the acetylene gas extracted from the spent ammonium hypochlorite still contains some acidic gases, which can corrode equipment. Therefore, the acidic gases in the acetylene gas must be neutralized using an alkaline tank seal.

[0003] Current alkali-sealed tanks simply introduce acetylene gas into the tank, 300 mm below the alkali liquid level. After the acetylene gas comes into contact with the alkali liquid, it is discharged from the top of the tank. However, current alkali-sealed tanks are ineffective in neutralizing the acetylene gas. The acetylene gas discharged from the top of the tank still contains some acidic gases, which can easily corrode subsequent acetylene gas delivery equipment. Utility Model Content

[0004] Based on the above-mentioned deficiencies, the present application provides a gas neutralization device to improve the problem of poor acetylene gas neutralization effect in the related art.

[0005] This application is implemented as follows:

[0006] The example of the present application provides a gas neutralization device, including a tank body and a washing mechanism; the tank body is provided with an air inlet and an air outlet, and the air outlet is located above the air inlet along the height direction of the tank body; the washing mechanism includes a coil and a packing layer; the coil is arranged in the tank body, and the liquid inlet and liquid outlet of the coil both extend out of the tank body; a plurality of nozzles are arranged at intervals on the coil for spraying downward a washing liquid that can react neutrally with the gas; along the height direction, the coil is located between the air inlet and the air outlet, and the interior of the tank body has a packing area corresponding to the space between the coil and the air outlet, and a desiccant packing is filled in the packing area to form a packing layer, so that the gas delivered by the air inlet can contact the washing liquid sprayed by the nozzle and then pass through the packing layer and be discharged out of the tank body from the air outlet.

[0007] In the above implementation process, since an air inlet, a coil, a packing layer and an air outlet are sequentially arranged along the height direction of the tank body from bottom to top, and a plurality of nozzles capable of spraying washing liquid downward are arranged at the coil, when it is necessary to use the gas neutralization device provided in the example of this application to neutralize acetylene gas or other gases, the gas to be neutralized can be transported from the air inlet into the tank body, and the gas flows from bottom to top in the tank body, forming convection with the washing liquid sprayed from the nozzle and flowing from top to bottom, so that the gas can fully contact with the washing liquid to react with neutralization; after contacting the washing liquid, the gas will continue to flow upward, pass through the packing layer, and then be discharged from the air outlet to facilitate the collection of the gas product. When the gas passes through the packing area, on the one hand, the porous structure of the packing area will increase the flow path of the gas, increase the time for the gas to react with the washing liquid droplets or droplets it carries, and improve the neutralization quality; on the other hand, the packing in the packing area is a desiccant, and the desiccant packing can also dry the gas, reduce the humidity of the neutralized gas, and improve the neutralization quality of the gas.

[0008] In an optional embodiment, the washing mechanism further includes a wire mesh demister, which is arranged above the packing layer and below the air outlet.

[0009] In the above implementation, because the wire mesh demister is installed above the packing layer and is located below the gas outlet, the gas passing through the packing layer passes through the wire mesh demister before being discharged from the gas outlet. As the gas passes through the wire mesh demister, it can further remove liquid droplets or mist droplets from the gas, improving the gas-liquid separation efficiency and further reducing the humidity of the gas discharged from the gas outlet.

[0010] In an optional embodiment, the nozzle is arranged to be tilted downward.

[0011] In an optional embodiment, the angle between the nozzle and the height direction is 30-60°.

[0012] In the above implementation process, the nozzle is tilted downward so that the angle between the nozzle and the height direction is 30 to 60 degrees, which can further promote full contact between the gas and the washing liquid sprayed by the nozzle and further improve the neutralization quality.

[0013] In an optional embodiment, the washing mechanism further includes a heating component for heating the desiccant filler to dry the desiccant filler.

[0014] As the operating time of the gas neutralization device provided in the example of this application increases, the drying effect of the desiccant filler will decrease. In the above implementation process, using the heating component to dry the desiccant filler can improve the drying effect of the desiccant filler and enable the desiccant filler to be recycled.

[0015] In an optional embodiment, the heating assembly includes a hot air delivery pipe, the hot air delivery pipe extends into the filler layer, and the hot air delivery pipe is provided with a first switch valve for selectively delivering hot air to the filler layer.

[0016] In the above implementation process, when the desiccant filler in the filler layer needs to be dried, the first switch valve can be opened, and hot air can be transported into the drying layer using the hot air delivery pipe. The hot air and the desiccant filler are heat exchanged to improve the drying effect of the desiccant filler.

[0017] In an optional embodiment, the air inlet, the air outlet, the liquid inlet and the liquid outlet are respectively provided with a second switch valve, a third switch valve, a fourth switch valve and a fifth switch valve.

[0018] In the above implementation process, corresponding switching valves are provided at the air inlet, air outlet, liquid inlet and liquid outlet. The switching of each connection port can be controlled by the switching valve. When delivering hot air, each connection port can be closed to improve the drying efficiency. At the same time, the chance of hot air mixing into the gas and causing pollution can be reduced.

[0019] In an optional embodiment, the heating assembly further includes an exhaust pipe, the exhaust pipe extends into the filler layer, and the exhaust pipe is provided with a sixth switch valve for selectively discharging hot air in the tank body.

[0020] In the above implementation, after hot air is delivered to the packing layer for drying, the hot air delivered to the packing layer needs to be exhausted. An exhaust pipe is extended into the packing layer. When the hot air needs to be exhausted, the sixth on / off valve can be opened to discharge the hot air through the exhaust pipe. Using the exhaust pipe to discharge the hot air, rather than discharging it through the outlet, further reduces the chance of the hot air contaminating the gas delivered through the outlet.

[0021] In an optional embodiment, the washing mechanism further includes a nitrogen inflation pipe and a nitrogen exhaust pipe extending into the tank body, the nitrogen inflation pipe is provided with a seventh switch valve to selectively deliver nitrogen into the tank body; the nitrogen exhaust pipe is provided with an eighth switch valve to selectively discharge the nitrogen in the tank body.

[0022] After the hot air is discharged through the exhaust pipe, some hot air will remain inside the tank. To further reduce the risk of hot air contaminating the gas, in the above implementation, after the hot air is discharged through the exhaust pipe, the seventh on-off valve on the nitrogen filling pipe can be opened to fill the tank with nitrogen. After the nitrogen has been filled to a certain level, the seventh on-off valve is closed and the eighth on-off valve on the nitrogen exhaust pipe is opened to discharge the nitrogen from the tank. Replacing the hot air inside the tank with nitrogen further reduces the risk of hot air contaminating the gas.

[0023] In an optional embodiment, a drain port is further provided at the bottom of the tank body, and a ninth switch valve is provided at the drain port for selectively draining the liquid in the tank body.

[0024] In the above implementation process, when the washing liquid level in the tank body is too high or the washing liquid needs to be replaced, the ninth switch valve at the drain port can be opened to discharge the washing liquid in the tank body from the drain port. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0026] Figure 1 Schematic diagram of the connection of the alkali sealing tank provided for comparison technology;

[0027] Figure 2 A connection diagram of the gas neutralization equipment provided for this application example;

[0028] Figure 3 Schematic diagram of the connection of coils and nozzles provided for the examples of this application.

[0029] Icons: 100-Alkali sealing tank; 101-Alkali liquid inlet; 102-Acetylene gas inlet; 103-Acetylene gas outlet; 1-Gas neutralization equipment; 10-Tank body; 11-Air inlet; 12-Air outlet; 13-Liquid discharge outlet; 20-Washing mechanism; 21-Coil; 211-Liquid inlet; 212-Liquid outlet; 22-Nozzle; 23-Padding layer; 231-Desiccant packing; 24-Wire mesh demister; 25-Heating assembly; 251-Hot air delivery pipe; 252-Exhaust pipe; 261-Nitrogen charging pipe; 262-Nitrogen exhaust pipe; 31-First switch valve; 32-Second switch valve; 33-Third switch valve; 34-Fourth switch valve; 35-Fifth switch valve; 36-Sixth switch valve; 37-Seventh switch valve; 38-Eighth switch valve; 39-Ninth switch valve; 40-Pressure gauge; D1-Height direction DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions.

[0032] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0033] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] The production of acetylene black requires large quantities of acetylene gas, currently produced industrially using the calcium carbide process. Calcium carbide produces crude acetylene gas in a generator. After passing through a sodium hypochlorite purification tower and a sodium hydroxide neutralization tower to remove sulfur and phosphorus impurities, the acetylene gas contains spent ammonium hypochlorite. Therefore, a flash evaporation system is typically used to extract the acetylene gas from this spent ammonium hypochlorite. However, the acetylene gas extracted from the spent ammonium hypochlorite contains some acidic gases, which can corrode equipment, necessitating neutralization of the acidic gases in the acetylene gas.

[0035] To facilitate the neutralization of acid gases in acetylene gas, see Figure 1 , the inventor tried to use the alkali sealing tank 100 to treat the acetylene gas.

[0036] Please continue reading Figure 1 When acetylene gas is treated by the alkali sealed tank 100, a certain amount of alkali liquid needs to be transported from the alkali liquid inlet 101 into the alkali sealed tank 100 so that the liquid level of the alkali liquid is higher than the gas outlet end of the acetylene gas inlet 102. For example, the liquid level of the alkali liquid is about 300 mm higher than the gas outlet end.

[0037] The acetylene gas to be processed is then delivered from acetylene gas inlet 102 to below the liquid level of the alkali solution, where it flows upward. During this upward flow, the acetylene gas comes into contact with the alkali solution, undergoing an acid-base neutralization reaction. As the acetylene gas flows, it passes through the liquid surface and continues upward to acetylene gas outlet 103, where it is ultimately discharged and collected as the acetylene gas product.

[0038] However, the inventors have found that the current alkali-sealed tank 100 is not effective in neutralizing acetylene gas. The acetylene gas discharged from the acetylene gas outlet 103 at the top of the alkali-sealed tank 100 still contains some acidic gas, which can easily corrode the acetylene gas transportation equipment during the backward transportation of the obtained acetylene gas product.

[0039] Therefore, the present application provides a gas neutralization device 1, which can improve the neutralization efficiency of gases such as acetylene to a certain extent. To make the purpose, technical solution and advantages of the embodiments of the present application more clear, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application.

[0040] See also Figure 2 The gas neutralization device 1 provided in the example of this application includes a tank body 10 and a washing mechanism 20.

[0041] Please continue to see Figure 2 The tank body 10 is provided with an air inlet 11 and an air outlet 12 . Along the height direction D1 of the tank body, the air outlet 12 is located above the air inlet 11 .

[0042] Please continue to see Figure 2 The washing mechanism 20 includes a coil 21 and a packing layer 23; the coil 21 is disposed in the tank body 10, and the liquid inlet 211 and the liquid outlet 212 of the coil 21 are both extended out of the tank body 10. Figure 3 The coil 21 is provided with a plurality of nozzles 22 at intervals for spraying downward a cleaning liquid capable of reacting with the gas to neutralize the cleaning liquid. Figure 1 Along the height direction D1, the coil 21 is located between the air inlet 11 and the air outlet 12. The interior of the tank body 10 has a packing area corresponding to the area between the coil 21 and the air outlet 12. The desiccant packing 231 is filled in the packing area to form a packing layer 23, so that the gas delivered by the air inlet 11 can contact the washing liquid sprayed by the nozzle 22 and pass through the packing layer 23, and finally be discharged from the tank body 10 through the air outlet 12.

[0043] When using the gas neutralization device 1 provided in the example of this application to neutralize gases such as acetylene, the gas to be neutralized can be transported from the air inlet 11 into the tank body 10, and at the same time, the coil 21 is used to transport the washing liquid, so that the washing liquid is sprayed downward from the nozzle 22 at the coil 21. The gas transported from the air inlet 11 to the tank body 10 will flow from bottom to top in the tank body 10, forming convection with the washing liquid sprayed from the nozzle 22 and flowing from top to bottom, so that the gas can more fully contact the washing liquid to produce a neutralization reaction. After contacting the washing liquid, the gas will continue to flow upward, pass through the packing layer 23, and then be discharged from the air outlet 12.

[0044] Compared with the neutralization treatment using the alkali-sealed tank 100, since when the neutralization treatment is performed using the alkali-sealed tank 100, the gas flows upward from the washing liquid and passes through the liquid surface, while the washing liquid is in a static state, the contact between the gas and the washing liquid is not sufficient. When the gas is neutralized using the gas neutralization device 1 provided in the example of this application, the gas to be neutralized flows from bottom to top in the tank body 10, and the washing liquid flows from top to bottom. The flow direction of the gas is opposite to the flow direction of the washing liquid, and the alkali liquid and the gas form convection, so the gas can be in more sufficient contact with the washing liquid, thereby improving the neutralization effect.

[0045] In addition, in order to further improve the reaction time after the gas contacts the scrubbing liquid, the gas neutralization device 1 provided in the example of the present application is further provided with a packing layer 23. The packing layer 23 is located between the coil 21 and the gas outlet 12. The packing layer 23 is filled with desiccant fillers 231. A porous structure is formed between the desiccant fillers 231. When the gas flows from the packing layer 23 to the gas outlet 12, the packing layer 23 can extend the flow path of the gas, increase the reaction time of the gas, and further improve the neutralization efficiency of the gas.

[0046] Furthermore, in the gas neutralization device 1 provided in the present application, the packing layer 23 is filled with a desiccant packing 231. As gas with a certain humidity passes through the packing layer 23, the desiccant packing 231 dries and dehumidifies the gas. However, when using an alkaline sealed tank 100 for neutralization, the gas that passes through the liquid surface flows directly into the acetylene gas outlet 103 and is discharged, resulting in a higher humidity in the collected acetylene gas product.

[0047] This application does not limit the specific type of scrubbing liquid; personnel may adjust the type based on the acidity or alkalinity of the gas to be neutralized. If the gas to be neutralized contains acidic gases, the scrubbing liquid is an alkaline solution, so that the acidic gases in the gas to be neutralized undergo an acid-base neutralization reaction upon contact with the alkaline solution. Conversely, if the gas to be neutralized contains alkaline gases, the scrubbing liquid is an acidic solution.

[0048] For example, when the gas to be treated is acetylene gas, the acetylene gas contains acidic gas, and the acidic gas in the acetylene gas needs to be neutralized, and alkaline solution is selected as the washing liquid.

[0049] The tank body 10 and the washing mechanism 20 in the gas neutralization device 1 provided by the example of this application are further described in detail below in conjunction with the accompanying drawings.

[0050] The interior of the tank 10 has a receiving space for the gas and the washing liquid to form convection in the tank 10 to generate an acid-base neutralization reaction. This application does not limit the specific shape and material of the tank 10, and relevant personnel can make corresponding choices according to needs.

[0051] For example, the tank body 10 may be made of a material that is resistant to acid and alkali corrosion.

[0052] For example, the tank body 10 may be cylindrical in shape.

[0053] Along the height direction D1 of the tank body 10, an air inlet 11 and an air outlet 12 located above the air inlet 11 are provided on the tank body 10, so that the gas transported to the inside of the tank body 10 by the air inlet 11 can flow from bottom to top and be discharged from the air outlet 12 located above.

[0054] Exemplarily, the air inlet 11 is located at the bottom of the side wall of the cylindrical tank body 10 , and the air outlet is located at the top wall of the tank body 10 .

[0055] Exemplarily, the air inlet 11 and the air outlet 12 are both connected to corresponding delivery pipelines.

[0056] Furthermore, to facilitate control of gas inlet and outlet, in some possible embodiments, a second on-off valve 32 may be provided at the gas inlet 11, and a third on-off valve 33 may be provided at the gas outlet 12. When the gas to be neutralized needs to be neutralized, the second on-off valve 32 may be opened to transport the gas to be neutralized from the gas inlet 11 into the tank body 10, and the third on-off valve 33 may be opened to transport the neutralized gas out of the tank body 10 from the gas outlet 12.

[0057] Furthermore, in order to facilitate the connection of the washing mechanism 20 , in some possible embodiments, an interface that cooperates with the washing mechanism 20 is also provided on the tank body 10 .

[0058] Exemplarily, the washing mechanism 20 includes a coil 21 disposed within the tank body 10 and having a liquid inlet 211 and a liquid outlet 212. Interfaces are provided on the tank body 10 at locations corresponding to the liquid inlet 211 and the liquid outlet 212, allowing the liquid inlet 211 and the liquid outlet 212 of the coil 21 to extend outside the tank body 10. The liquid inlet 211 and the liquid outlet 212 of the coil 21 are sealedly connected to the interfaces of the tank body 10.

[0059] Multiple nozzles 22 are arranged at intervals on the coil 21, and the liquid inlet 211 and the liquid outlet 212 of the coil 21 are extended outside the tank body 10. The coil 21 can be used to transport washing liquid so that the washing liquid can be evenly sprayed from the multiple nozzles 22, and the excess washing liquid in the coil 21 can flow out from the liquid outlet 212.

[0060] The washing liquid sprayed from the nozzle 22 will be collected at the bottom of the tank 10. Further, in order to facilitate the discharge of the washing liquid in the tank 10, in a possible embodiment, please continue to refer to Figure 2 A drain port 13 may be provided at the bottom of the tank body 10. A ninth switch valve 39 is provided at the drain port 13.

[0061] Furthermore, in order to facilitate the fixation of the coil 21, in some possible embodiments, a slot can be provided on the inner wall of the tank body 10 at a position corresponding to the coil 21, and the coil 21 can be embedded in the inner wall of the tank body 10 to fix the coil 21, and the nozzle 22 is provided on the side of the coil 21 away from the inner wall of the tank body 10.

[0062] Furthermore, in order to improve the spraying effect of the nozzle 22, in some possible embodiments, the nozzle 22 may be arranged to be tilted downward.

[0063] Furthermore, the included angle between the nozzle 22 and the height direction D1 may be set to 30-60°.

[0064] For example, the included angle between the nozzle 22 and the height direction D1 may be set to be within a range of 30°, 35°, 40°, 45°, 50°, 55° or 60°, or any two thereof.

[0065] For example, the included angle between the nozzle 22 and the height direction D1 may be set to 45°.

[0066] Furthermore, in order to facilitate the control of the liquid spraying of the coil 21 , in some possible embodiments, a fourth switch valve 34 may be provided at the liquid inlet 211 , and a fifth switch valve 35 may be provided at the liquid outlet 212 .

[0067] In order to further improve the neutralization effect of the gas and reduce the humidity of the neutralized gas, the scrubbing mechanism 20 provided in the example of the present application is further provided with a packing layer 23. The packing layer 23 is provided above the coil 21 and below the gas outlet 12. The packing layer 23 is formed by filling with a desiccant filler.

[0068] To facilitate filling the packing area of ​​the tank body 10 with desiccant filler 231 to form the packing layer 23, in some possible embodiments, a support mesh can be provided within the tank body 10 above the coil 21. The end of the support mesh is connected to the inner wall of the tank body 10. The support mesh and the inner wall of the tank body 10 form a cylindrical packing area, and the desiccant filler 231 is filled into the packing area to form the packing layer 23. It is understood that to facilitate the passage of gas into the packing layer 23, the support mesh should be configured as a porous structure. Similarly, the pore size of the porous structure should not be smaller than the particle size of the desiccant filler 231 to prevent the desiccant filler 231 from falling.

[0069] Exemplarily, the support net may be configured as an inverted trapezoidal structure.

[0070] Furthermore, in order to improve the stability of the packing layer 23, a wire mesh demister 24 may be provided above the packing layer 23. Furthermore, the wire mesh demister 24 is provided above the packing layer 23. When the gas passes through the wire mesh demister 24, the wire mesh demister 24 can further promote gas-liquid separation.

[0071] Exemplarily, the wire mesh demister 24 has a certain thickness, and the pore size of the wire mesh demister 24 is smaller than the particle size of the desiccant filler 231 .

[0072] The present application does not limit the specific type of the desiccant filler 231 . In one possible embodiment, the desiccant filler 231 may be selected from silica gel desiccant.

[0073] After the desiccant filler 231 has been used for a certain period of time, the drying effect of the desiccant filler 231 will decrease. In order to improve the drying effect of the desiccant filler 231, in some possible embodiments, please continue to refer to Figure 2 A heating component 25 may be provided to heat and dry the desiccant filler 231 so that the desiccant filler 231 can be recycled.

[0074] The present application does not limit the specific type of the heating component 25. In some possible embodiments, the heating component 25 includes a hot air delivery pipe 251, which extends into the packing layer 23. The hot air delivery pipe 251 is provided with a first switch valve 31 for selectively delivering hot air to the packing layer 23.

[0075] Furthermore, in order to facilitate the discharge of hot air, in some possible embodiments, the heating component 25 is also provided with an exhaust pipe 252, the exhaust pipe 252 extends into the packing layer 23, and the exhaust pipe 252 is provided with a sixth switch valve 36 for selectively discharging the hot air in the tank body 10.

[0076] Furthermore, in order to facilitate the replacement of the hot air remaining in the tank body, in some possible embodiments, the washing mechanism 20 also includes a nitrogen inflation pipe 261 and a nitrogen exhaust pipe 262 extending into the tank body 10. The nitrogen inflation pipe 261 is provided with a seventh switch valve 37 to selectively deliver nitrogen into the tank body 10; the nitrogen exhaust pipe 262 is provided with an eighth switch valve 38 to selectively discharge the nitrogen in the tank body 10.

[0077] Furthermore, in order to facilitate observation of the air pressure in the tank body 10 , in a possible implementation, a pressure gauge 40 may be provided at the tank body 10 .

[0078] The operation process of the gas neutralization device 1 provided in the example of this application is as follows:

[0079] When neutralizing the gas, close the first switch valve 31, the sixth switch valve 36, the seventh switch valve 37, the eighth switch valve 38 and the ninth switch valve 39, open the second switch valve 32 to transport gas from the air inlet 11 to the tank body 10, and at the same time open the fourth switch valve 34 and the fifth switch valve 35, use the nozzle 22 to spray the washing liquid downward, and at the same time open the third switch valve 33 so that the neutralized gas can be discharged from the air outlet 12.

[0080] When the desiccant filler 231 needs to be dried, close the second switch valve 32, the third switch valve 33, the fourth switch valve 34, the fifth switch valve 35, the seventh switch valve 37, the eighth switch valve 38 and the ninth switch valve 39, open the first switch valve 31 to deliver hot air to the filler layer 23, and after a certain degree of hot air is delivered, open the sixth switch valve 36 to discharge the hot air after heat exchange.

[0081] After drying is completed, when it is necessary to use nitrogen to replace the hot air in the tank body 10, close the first switch valve 31, the second switch valve 32, the third switch valve 33, the fourth switch valve 34, the fifth switch valve 35, the sixth switch valve 36, the eighth switch valve 38 and the ninth switch valve 39, open the seventh switch valve 37, fill the tank body 10 with nitrogen, observe the pressure gauge 40, and when the air pressure in the tank body 10 is close to the pressure of nitrogen, close the seventh switch valve 37, open the eighth switch valve 38, and close the eighth switch valve 38 after the pressure is released.

[0082] When the washing liquid in the tank body 10 needs to be discharged, the ninth switch valve 39 can be opened to discharge the washing liquid in the tank body 10 from the drain port 13 .

[0083] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A gas neutralization device, characterized in that: include: A tank body, wherein the tank body is provided with an air inlet and an air outlet, and along the height direction of the tank body, the air outlet is located above the air inlet; The washing mechanism comprises a coil and a packing layer; the coil is arranged in the tank body, and the liquid inlet and the liquid outlet of the coil are both extended outside the tank body; The coil is provided with a plurality of nozzles at intervals for spraying downward a cleaning liquid capable of reacting neutrally with the gas; along the height direction, the coil is located between the air inlet and the air outlet, and the interior of the tank body has a filler area corresponding to the area between the coil and the air outlet, and a desiccant filler is filled in the filler area to form the filler layer, so that the gas transported by the air inlet can contact the cleaning liquid sprayed by the nozzle and then pass through the filler layer and be discharged outside the tank body through the air outlet.

2. The gas neutralization device according to claim 1, characterized in that The washing mechanism further comprises a wire mesh demister, which is arranged above the packing layer and below the air outlet.

3. The gas neutralization device according to claim 1, characterized in that The nozzle is arranged to be tilted downward.

4. The gas neutralization device according to claim 3, characterized in that The included angle between the nozzle and the height direction is 30-60°.

5. The gas neutralization device according to any one of claims 1 to 4, characterized in that: The washing mechanism further includes a heating component for heating the desiccant filler to dry the desiccant filler.

6. The gas neutralization device according to claim 5, characterized in that The heating component includes a hot air delivery pipe, which extends into the packing layer. The hot air delivery pipe is provided with a first switch valve for selectively delivering hot air to the packing layer.

7. The gas neutralization device according to claim 6, characterized in that The air inlet, the air outlet, the liquid inlet and the liquid outlet are respectively provided with a second switch valve, a third switch valve, a fourth switch valve and a fifth switch valve.

8. The gas neutralization device according to claim 7, characterized in that The heating component further includes an exhaust pipe extending into the filler layer. The exhaust pipe is provided with a sixth switch valve for selectively exhausting the hot air in the tank body.

9. The gas neutralization device according to claim 8, characterized in that The washing mechanism also includes a nitrogen inflation pipe and a nitrogen exhaust pipe extending into the tank body. The nitrogen inflation pipe is provided with a seventh switch valve to selectively deliver nitrogen into the tank body; the nitrogen exhaust pipe is provided with an eighth switch valve to selectively discharge the nitrogen in the tank body.

10. The gas neutralization device according to claim 1, characterized in that: The bottom of the tank body is further provided with a liquid drain port, and the liquid drain port is provided with a ninth switch valve for selectively draining the liquid in the tank body.

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