CN117258518A - Reverse spray gas purification device - Google Patents

Reverse spray gas purification device Download PDF

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Publication number
CN117258518A
CN117258518A CN202311432934.8A CN202311432934A CN117258518A CN 117258518 A CN117258518 A CN 117258518A CN 202311432934 A CN202311432934 A CN 202311432934A CN 117258518 A CN117258518 A CN 117258518A
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CN
China
Prior art keywords
gas
layer
exchange layer
adsorption exchange
spray
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Pending
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CN202311432934.8A
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Chinese (zh)
Inventor
卓鹏
刘肖
蒋境邦
孙传虎
张震
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Shinva Medical Instrument Co Ltd
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Shinva Medical Instrument Co Ltd
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Priority to CN202311432934.8A priority Critical patent/CN117258518A/en
Publication of CN117258518A publication Critical patent/CN117258518A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1468—Removing hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/58—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0266—Other waste gases from animal farms

Abstract

The invention discloses a reverse spraying gas purification device, which relates to the technical field of environmental engineering and is used for solving the problem of low gas purification efficiency of the existing horizontal filler spray tower.

Description

Reverse spray gas purification device
Technical Field
The invention relates to the technical field of environmental engineering, in particular to a reverse spraying gas purifying device.
Background
Currently, in the treatment of off-flavor gases or aquaculture exhaust gases (ammonia nitrogen-containing exhaust gases, hydrogen sulfide gases, etc.) discharged from industrial production, wet spray absorption techniques are commonly used, and gas purification apparatuses using a filler spray absorption method are most commonly used.
The gas purifying device based on filler spray absorption comprises a vertical filler spray tower and a horizontal filler spray tower. The vertical filler spray tower has the defects that the equipment height is higher, the height is usually more than 4-5 meters, and if the vertical filler spray tower is installed outdoors, a high platform or a climbing ladder is required to be arranged for operation and maintenance, so that the vertical filler spray tower is unsafe and inconvenient. The structure of the existing horizontal filler spray tower is as follows: along the air flow direction, the spray nozzle uniformly sprays liquid onto the filler in the forward direction, the liquid is blocked by the filler and is fully distributed on the filler, a layer of water film is formed on the surface of the filler, the direction of the waste gas is changed in a process of passing through a filler gap, the air speed is increased, and the waste gas is easy to collide with the water film, so that a typical water film absorption method is formed. However, in some situations, the gas purification efficiency of the existing horizontal packing spray tower cannot meet the requirement, and further improvement is required.
Disclosure of Invention
The invention aims to provide a reverse spray gas purification device which can improve gas purification efficiency.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the reverse spray gas purification device comprises a gas flow channel, at least one adsorption exchange layer and at least one spray assembly, wherein the gas flow channel is provided with a gas inlet and a gas outlet, so that gas to be purified enters the gas flow channel from the gas inlet and is discharged from the gas outlet;
the at least one adsorption exchange layer and the at least one spraying component are arranged in the airflow channel, the adsorption exchange layer is correspondingly arranged on one side of any spraying component, the spraying component is used for spraying preset liquid to the corresponding adsorption exchange layer, the spraying component is arranged on the gas outflow side of the corresponding adsorption exchange layer, so that the gas to be purified flows to the adsorption exchange layer from one side of the corresponding adsorption exchange layer, and the spraying component sprays preset liquid to the adsorption exchange layer from the other side of the adsorption exchange layer;
the adsorption exchange layer is internally provided with pores, the preset liquid can enter the pores and form a liquid film on the inner walls of the pores, and the gas to be purified passes through the pores, so that the gas to be purified is dispersed into a plurality of airflows, and the flow direction of the airflows is changed at will.
In some embodiments, at least two of the adsorption exchange layers and at least two of the spray assemblies are included, each of the adsorption exchange layers and each of the spray assemblies being alternately arranged in sequence.
In some embodiments, the gas purifying device further comprises a turbulence layer arranged in the gas flow channel, wherein the turbulence layer is arranged on the gas outflow side of the adsorption exchange layer and is used for forming turbulence when the gas to be purified passes through the turbulence layer.
In some embodiments, the turbulence layer comprises a multi-layer sheet with a space between adjacent sheets, the sheets being at least partially folded such that a folded channel is formed between adjacent sheets.
In some embodiments, the system further comprises a mist removal layer disposed in the airflow channel, the mist removal layer being disposed on a side of the turbulence layer adjacent to the air outlet for intercepting the mist.
In some embodiments, the bottom of the gas flow channel is provided with water holes in the area below the adsorption exchange layer and the spray assembly, and the area below the adsorption exchange layer and the spray assembly is lower than other areas of the bottom of the gas flow channel.
In some embodiments, the air flow channel further comprises a water storage tank, a water through hole is arranged at the bottom of the air flow channel, and the water storage tank is communicated with the water through hole.
In some embodiments, the device further comprises a first driving device and a conveying pipe, the water storage tank is communicated with the spraying assembly through the conveying pipe, the first driving device is connected with the conveying pipe, and the first driving device is used for driving the preset liquid in the water storage tank to flow to the spraying assembly along the conveying pipe.
In some embodiments, a float valve is disposed within the storage tank for controlling the level of liquid in the storage tank.
In some embodiments, the air velocity of the gas to be purified entering the air flow channel is less than or equal to 4m/s.
According to the technical scheme, the reverse spray gas purification device comprises an airflow channel, at least one adsorption exchange layer and at least one spray assembly, wherein the airflow channel is provided with an air inlet and an air outlet, so that gas to be purified enters the airflow channel from the air inlet and is discharged from the air outlet. At least one adsorption exchange layer and at least one spraying component are arranged in the airflow channel, one side of any spraying component is correspondingly provided with the adsorption exchange layer, the spraying component is used for spraying preset liquid to the corresponding adsorption exchange layer, the spraying component is arranged on the gas outflow side of the corresponding adsorption exchange layer, so that gas to be purified flows to the adsorption exchange layer from one side of the corresponding adsorption exchange layer, and the spraying component sprays preset liquid to the adsorption exchange layer from the other side of the adsorption exchange layer. The adsorption exchange layer is internally provided with pores, preset liquid can enter the pores and form a liquid film on the inner walls of the pores, and gas to be purified passes through the pores, so that the gas to be purified is dispersed into a plurality of airflows, and the flow direction of the airflows is changed at will.
The invention has the advantages that the preset liquid enters the pores of the adsorption exchange layer and forms a liquid film on the inner wall of the pores, when the gas to be purified passes through the adsorption exchange layer, the pores of the adsorption exchange layer disperse the gas to be purified into a plurality of airflows, the flow direction of the airflows is changed at will, and the airflows are contacted or collided with the liquid film formed on the inner wall of the pores; and the direction of spraying the liquid to the adsorption exchange layer by the spraying assembly is opposite to the direction of the gas to be purified passing through the adsorption exchange layer, so that the direction of the preset liquid flowing to the adsorption exchange layer is opposite to the direction of the gas to be purified passing through the adsorption exchange layer, and then the gas to be purified and the preset liquid in the adsorption exchange layer move in opposite directions to be mixed, thereby being capable of improving the absorption of harmful substances in the gas to be purified. Therefore, the reverse spray gas purification device of the present invention can improve the gas purification efficiency.
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 side view of a reverse spray gas cleaning device according to an embodiment of the present invention;
FIG. 2 is a top view of the reverse spray gas cleaning device shown in FIG. 1;
FIG. 3 is a partial schematic view of a turbulent layer according to an embodiment of the present invention.
Reference numerals in the drawings of the specification include:
the device comprises a 1-adsorption exchange layer, a 2-spray head, a 3-turbulent flow layer, a 4-mist removal layer, a 5-float valve, a 6-water storage tank, a 7-water pump, an 8-fan, a 9-bottom plate, a 10-conveying pipe and an 11-plate.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
The embodiment provides a reverse spray gas purification device, which comprises a gas flow channel, at least one adsorption exchange layer 1 and at least one spray assembly, wherein the gas flow channel is provided with a gas inlet and a gas outlet, so that gas to be purified enters the gas flow channel from the gas inlet and is discharged from the gas outlet;
the at least one adsorption exchange layer 1 and the at least one spraying component are arranged in the airflow channel, the adsorption exchange layer 1 is correspondingly arranged on one side of any spraying component, the spraying component is used for spraying preset liquid to the corresponding adsorption exchange layer 1, the spraying component is arranged on the gas outflow side of the corresponding adsorption exchange layer 1, so that the gas to be purified flows to the adsorption exchange layer 1 from the side corresponding to the adsorption exchange layer 1, and the spraying component sprays the preset liquid to the adsorption exchange layer 1 from the other side of the adsorption exchange layer 1;
the adsorption exchange layer 1 is internally provided with pores, the preset liquid can enter the pores and form a liquid film on the inner walls of the pores, and the gas to be purified passes through the pores, so that the gas to be purified is dispersed into a plurality of airflows, and the flow direction of the airflows is changed at will.
The gas to be purified enters the gas flow channel from the gas inlet, flows along the gas flow channel, passes through the adsorption exchange layer 1 and the spraying component, and is further discharged from the gas outlet. One side of any spraying component is provided with a corresponding adsorption exchange layer 1, the spraying component sprays preset liquid to the corresponding adsorption exchange layer 1, and when the preset liquid is sprayed to the adsorption exchange layer 1, the preset liquid enters the pores of the adsorption exchange layer 1 and forms a liquid film on the inner walls of the pores. The gas to be purified flows to the adsorption exchange layer 1, the gas to be purified passes through the pores of the adsorption exchange layer 1, the pores of the adsorption exchange layer 1 disperse the gas to be purified into a plurality of airflows, the airflows can change the flow direction of the airflows along with the pore flows at will, and the airflows can be contacted with or collide with a liquid film formed on the inner wall of the pore, so that the gas to be purified is mixed and collided with preset liquid in the adsorption exchange layer 1, and the preset liquid absorbs harmful substances in the gas to be purified.
The spraying component is arranged on one side of the adsorption exchange layer 1, i.e. the gas to be purified flows from one side of the adsorption exchange layer 1 to the adsorption exchange layer 1, the spraying component sprays preset liquid from the other side of the adsorption exchange layer 1 to the adsorption exchange layer 1, the direction of the spraying component spraying the liquid to the adsorption exchange layer 1 is opposite to the direction of the gas to be purified passing through the adsorption exchange layer 1, so that the direction of the preset liquid flowing to the adsorption exchange layer 1 is opposite to the direction of the gas to be purified passing through the adsorption exchange layer 1, and then the gas to be purified and the preset liquid move in opposite directions to be mixed in the adsorption exchange layer 1, and compared with the spraying of the liquid to the adsorption exchange layer 1 along the gas flowing direction, the absorption of harmful substances in the gas to be purified can be improved. Therefore, the reverse shower gas cleaning device of the present embodiment can improve the gas cleaning efficiency.
The reverse spraying gas purification device of the embodiment can be used for purifying harmful gas in gas to be purified, the spraying component sprays preset liquid to the corresponding adsorption exchange layer 1, and when the preset liquid is sprayed to the adsorption exchange layer 1, the preset liquid enters the pores of the adsorption exchange layer 1 and forms a liquid film on the inner walls of the pores. The gas to be purified flows to the adsorption exchange layer 1, the gas to be purified passes through the pores of the adsorption exchange layer 1, so that the gas to be purified is dispersed into a plurality of gas flows, the gas flows along with the flow of the pores to change the flow direction of the gas flows at will, the gas flows can be contacted or collided with a liquid film formed on the inner wall of the pores, and harmful gas in the gas flows can be absorbed or reacted by the liquid film. In addition, the direction of the preset liquid flowing to the adsorption exchange layer 1 is opposite to the direction of the gas to be purified passing through the adsorption exchange layer 1, and the gas to be purified and the preset liquid in the adsorption exchange layer 1 move in opposite directions to be mixed, so that the gas to be purified and the preset liquid can be absorbed and reacted more effectively, harmful gas in the gas to be purified is removed more effectively, and the purifying effect of the gas to be purified is achieved. The gas to be purified can be peculiar smell gas or cultivation waste gas discharged by industrial production, and the gas contains harmful gases such as ammonia nitrogen waste gas, hydrogen sulfide gas and the like.
Referring to fig. 1, fig. 1 is a side view of a reverse spray gas purifying apparatus according to an embodiment, fig. 2 is a top view of the reverse spray gas purifying apparatus shown in fig. 1, and as shown in the drawing, the reverse spray gas purifying apparatus includes an adsorption exchange layer 1 and a spray assembly including a spray head 2, and a preset liquid is sprayed to the adsorption exchange layer 1 through the spray head 2. The predetermined liquid may be, but is not limited to, water.
The arrow in the figure indicates the gas flow direction, and as shown in the figure, the gas to be purified flows from the left side of the adsorption exchange layer 1 to the adsorption exchange layer 1, the spray assembly is arranged on the right side of the adsorption exchange layer, the spray head 2 sprays liquid towards the adsorption exchange layer 1, namely, the gas to be purified passes through the adsorption exchange layer 1 from left to right, and the liquid sprayed by the spray head 2 sprays to the adsorption exchange layer 1 from the right side, so that the direction of the preset liquid flowing to the adsorption exchange layer 1 is opposite to the direction of the gas to be purified passing through the adsorption exchange layer 1. In this way, the gas to be purified and the preset liquid in the adsorption exchange layer 1 are mixed by moving in opposite directions, and the gas to be purified and the preset liquid can be more fully mixed and collide more effectively, so that the absorption of harmful substances in the gas to be purified is improved.
The device adopts a countercurrent exchange mode for gas purification, and countercurrent exchange means that the movement directions of two media are opposite, and direct opposite impact collision is generated during mixing, so that substances carried by the two media are mutually transferred. It is generally considered that when the liquid spraying direction is opposite to the flow direction of the waste gas, the air flow can block the water flow, and the air flow can influence the formation of water mist, so that the spraying effect is poor; in fact, in order to ensure good purification effect and low pressure loss, it is found through experiments that the atomization effect of the high-pressure liquid is not affected in the low-wind-speed environment when the wind speed of the exhaust gas is lower than 4m/s. Therefore, the device is provided with the water-blocking adsorption exchange layer 1 at the front end of the high-pressure water flow to block the high-pressure water flow, so as to prevent the spraying liquid from flowing out of the device along the air inlet pipeline and causing water leakage of equipment; secondly, under the impact of the spray liquid water flow, the pores of the adsorption exchange layer 1 are filled with liquid, and the gas to be purified can form turbulent water film exchange with the liquid on the surface of the adsorption exchange layer 1 while passing through the adsorption exchange layer 1, so that the gas purification treatment efficiency is remarkably improved.
In the present embodiment, the structure of the adsorption exchange layer 1 is not limited, and hollow spheres or pall rings may be provided in the adsorption exchange layer 1. The adsorption exchange layer 1 may be, but is not limited to, a packing, in which pores through which gas passes are provided, such as hollow spheres or pall rings, etc. When the gas to be purified flows to the adsorption exchange layer 1, the gas enters the pores of the adsorption exchange layer 1, the gas to be purified is dispersed into a plurality of gas flows by the pores of the adsorption exchange layer 1, the gas to be purified is enabled to be in full contact with preset liquid in the pores of the adsorption exchange layer 1, the flow direction of the gas flow can be changed along with the pores at will when the gas flow flows along with the pores, the gas flow can be dispersed into small gas flows, the small gas flows can impact a liquid film on the surface of the pores, the substance exchange is carried out with the liquid film, and harmful substances in the gas flow can be exchanged into the liquid.
In the present embodiment, the structure of the shower module is not limited as long as the liquid can be discharged to the adsorption exchange layer 1. The spray assembly may include a spray head 2 and a delivery tube in communication with the spray head 2 for delivering a predetermined liquid to the spray head 2 via the delivery tube for spraying from the spray head 2. As can be seen with reference to fig. 1 and 2, the spray assembly comprises a plurality of spray heads 2, the spray heads 2 being arranged towards the adsorption exchange layer 1.
In the apparatus shown in fig. 1 and 2, which is illustrated by taking an example including a set of adsorption exchange layers 1 and spray assemblies, in other embodiments, the reverse spray gas purifying apparatus may include at least two adsorption exchange layers 1 and at least two spray assemblies, where each adsorption exchange layer 1 and each spray assembly are alternately arranged in turn, and after the gas to be purified enters, the gas to be purified sequentially passes through each adsorption exchange layer 1, and is subjected to multiple treatments, so that the gas purifying effect can be improved. In the present embodiment, the number of adsorption exchange layers 1 and the number of shower modules are not limited, and may be set according to the device structure, purification effect requirements, cost, and the like in practical applications.
In some embodiments, the device further comprises a turbulence layer 3 arranged in the air flow channel, wherein the turbulence layer 3 is arranged on the air outflow side of the adsorption exchange layer 1, and is used for forming turbulence when the air to be purified passes through the turbulence layer 3. The device adopts a turbulent flow exchange mode through the turbulent flow layer 3, the movement mode of the gas in the unordered state is turbulent flow, and the turbulent flow exchange means that the gas is easier to collide with the liquid during unordered movement, and substances in the gas are easier to transfer into the liquid. In the present embodiment, the specific structure of the turbulent flow layer 3 is not limited as long as turbulence can be formed when the gas to be purified passes through the turbulent flow layer 3. Referring to fig. 3 for exemplary purposes, fig. 3 is a schematic partial view of a turbulence layer according to an embodiment, wherein arrows indicate gas flow directions, and wherein the turbulence layer 3 comprises a plurality of plates 11, as shown, with a space between two adjacent plates 11, wherein the plates 11 are at least partially bent such that bending channels are formed between adjacent plates 11, such that turbulence is formed when the gas to be purified passes between the adjacent plates 11. The turbulence layer 3 is arranged in the device, on one hand, the turbulence layer 3 plays a role in intercepting liquid drops in gas, and a layer of water film can be formed on the surface of the plate 11 under the interception of the liquid drops with larger diameters; on the other hand, the gas flow direction in the turbulent layer 3 changes sharply, the speed becomes fast, and the gas collides with a large number of intercepted liquid drops, the gas-liquid exchange is strong, and the gas purification efficiency is further improved. In practice, the spacing between adjacent plates 11 of the turbulence layer 3 is related to the wind speed through the gas and can be set according to the wind speed through the gas. The exemplary turbulence layer 3 has a spacing between adjacent plates 11 of 10 mm-30 mm. Referring to fig. 1 and 2, a turbulence layer 3 is provided on the side of the nozzle 2 remote from the adsorption exchange layer 1. In the embodiment of the reverse spraying gas purification device comprising a plurality of groups of adsorption exchange layers 1 and spraying components, each group of adsorption exchange layers 1 and spraying components are sequentially arranged along the airflow channel, and a turbulence layer 3 can be arranged behind the spray heads of the last group of adsorption exchange layers 1 and spraying components, namely, in the airflow channel, the turbulence layer 3 is arranged between the last group of adsorption exchange layers 1 and the spraying components and the air outlet.
In some embodiments, the device may further include a demisting layer 4 disposed in the airflow channel, where the demisting layer 4 is disposed on a side of the turbulent flow layer 3 near the air outlet, and is used for intercepting water mist. In this embodiment, the structure of the demister layer 4 is not limited, the demister layer 4 may be a wire mesh demister or demister cotton, the wire mesh demister may be a mesh formed by stainless steel filaments according to a certain arrangement sequence, the demister cotton may be polyurethane cotton, the polyurethane cotton may intercept water mist, and in addition, the catalyst attached to the surface of the polyurethane cotton has a deodorizing function, so that ozone generated by front-end equipment can be removed.
In some embodiments, the bottom of the air flow channel is provided with water holes in the area below the adsorption exchange layer 1 and the spray assembly, so that the liquid sprayed by the spray assembly is discharged through the water holes when flowing to the bottom of the air flow channel, and water accumulation is avoided. In some embodiments, the bottom of the air flow channel is located in the area below the adsorption exchange layer 1 and the spraying component and is lower than other areas below the air flow channel, so that the bottom of the air flow channel can be obliquely arranged, the area below the adsorption exchange layer 1 and the spraying component is lower than other areas below the air flow channel, and liquid sprayed by the spraying component flows to the lower part of the adsorption exchange layer 1 and the spraying component more easily when flowing to the bottom of the air flow channel, and is discharged from the water through holes, so that accumulated water is effectively avoided. Referring to fig. 1, the apparatus includes a case in which an air flow passage is formed, and an adsorption exchange layer 1 and a spray head 2 are disposed. The box body is provided with a bottom plate 9, the bottom plate 9 is correspondingly provided with a plurality of water holes in the area below the adsorption exchange layer 1 and the spray heads 2, and the bottom plate 9 can be called a mesh bottom plate. And the bottom plate 9 is provided with a slope of 3 degrees, so that the end of the bottom plate 9, which is provided with the water through hole, is low, and the right side of the bottom plate is high corresponding to the defogging layer 4, so that sprayed liquid can be smoothly discharged into the water storage tank 6 through the water through hole. The inclination of the bottom plate 9 can reduce water storage in the box body and avoid bacteria propagation in a 'dead water' area in the box body.
Further, the device also comprises a water storage tank 6, a water through hole is arranged at the bottom of the air flow channel, the water storage tank 6 is communicated with the water through hole, and liquid sprayed by the spraying assembly flows to the bottom of the air flow channel and can flow into the water storage tank 6 through the water through hole. Further, the device may further include a first driving device and a conveying pipe, the water storage tank 6 is communicated with the spraying assembly through the conveying pipe, the first driving device is connected with the conveying pipe, and the first driving device is used for driving the preset liquid in the water storage tank 6 to flow to the spraying assembly along the conveying pipe. In some embodiments, at least two first driving devices may be provided, some of which may be used as standby driving devices, and when one first driving device fails, the standby first driving device may be started to ensure that the present gas cleaning device is normal. The first driving means may be a water pump 7. Referring to fig. 1, a water storage tank 6 and a water pump 7 are arranged below the spraying tank body, the water storage tank 6 and the spraying assembly are communicated through a conveying pipe 10, and the water pump 7 is connected with the conveying pipe 10 and is arranged on one side of the water storage tank 6. The water pump 7 is high-speed operation equipment, the fault probability is high, one water pump is used for one water pump in the embodiment, and when one water pump fails, the other water pump immediately operates, so that the normal operation of the equipment is ensured. Further, a float valve 5 is arranged in the water storage tank 6 and used for controlling the liquid level in the water storage tank 6, so that the liquid in the water storage tank 6 can be directly discharged, a drain valve of the water storage tank 6 can be opened at regular time, the water level can be reduced, water can be supplemented to the water storage tank 6 through the float valve 5, and the concentration of absorbing substances in the liquid in the water storage tank 6 can be reduced; in addition, the dissolution concentration of the absorbing substance in the liquid is very low, and the absorption efficiency is basically not affected. Referring to fig. 1, the water storage tank 6 and the water pump 7 are arranged below the spraying tank body, so that the whole gas purifying device is integrated into a whole, no protrusion exists, and the structural design is more reasonable. A float valve 5 is arranged in the water storage tank 6.
Further, the device is also provided with a second driving device which is used for driving the gas to be purified to enter the gas flow channel. The second drive means may employ, but is not limited to, a fan. Referring to fig. 1, a blower 8 is provided at the air outlet.
The reverse spray gas purification device is a multi-absorption method gas purification device, and comprises a water film absorption method, a reverse spray absorption method and a turbulent flow gas-liquid exchange method, so that the integral purification efficiency of equipment can be improved.
In one embodiment, the apparatus is used to purge two sample gases. First sample gas hydrogen sulfide content prior to purging0.02mg/m 3 After the sample gas passes through the device, the content of hydrogen sulfide in the exhaust gas is less than 0.01mg/m 3 Therefore, the device can achieve better purifying effect on the hydrogen sulfide. The second sample gas had an ammonia content of 13.7mg/m prior to purification 3 After the sample gas passes through the device, the ammonia content in the exhaust gas is 1.91mg/m 3 Therefore, the device can achieve better purification effect on ammonia.
The reverse spraying gas purifying device provided by the invention is described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims (10)

1. The reverse spray gas purification device is characterized by comprising a gas flow channel, at least one adsorption exchange layer and at least one spray assembly, wherein the gas flow channel is provided with a gas inlet and a gas outlet, so that gas to be purified enters the gas flow channel from the gas inlet and is discharged from the gas outlet;
the at least one adsorption exchange layer and the at least one spraying component are arranged in the airflow channel, the adsorption exchange layer is correspondingly arranged on one side of any spraying component, the spraying component is used for spraying preset liquid to the corresponding adsorption exchange layer, the spraying component is arranged on the gas outflow side of the corresponding adsorption exchange layer, so that the gas to be purified flows to the adsorption exchange layer from one side of the corresponding adsorption exchange layer, and the spraying component sprays preset liquid to the adsorption exchange layer from the other side of the adsorption exchange layer;
the adsorption exchange layer is internally provided with pores, the preset liquid can enter the pores and form a liquid film on the inner walls of the pores, and the gas to be purified passes through the pores, so that the gas to be purified is dispersed into a plurality of airflows, and the flow direction of the airflows is changed at will.
2. The reverse spray gas cleaning device according to claim 1, comprising at least two of said adsorption exchange layers and at least two of said spray modules, each of said adsorption exchange layers and each of said spray modules being alternately arranged in sequence.
3. The reverse spray gas cleaning device according to claim 1, further comprising a turbulence layer disposed in the gas flow passage, the turbulence layer being disposed on a gas outflow side of the adsorption exchange layer for causing turbulence of the gas to be cleaned when passing through the turbulence layer.
4. A reverse shower gas purification apparatus according to claim 3, wherein the turbulence layer comprises a multi-layer sheet with a space between adjacent sheets, the sheets being at least partially folded such that a folded channel is formed between adjacent sheets.
5. A reverse spray gas cleaning device according to claim 3, further comprising a mist removal layer disposed in the gas flow path, the mist removal layer being disposed on a side of the turbulence layer adjacent the gas outlet for intercepting water mist.
6. The reverse spray gas cleaning device according to claim 1, wherein the bottom of the gas flow channel is provided with water passing holes in a region below the adsorption exchange layer and the spray assembly, and the bottom of the gas flow channel is lower than other regions below the adsorption exchange layer and the spray assembly.
7. The reverse spray gas purification apparatus according to claim 1, further comprising a water storage tank, wherein a water through hole is provided at a bottom of the gas flow passage, and the water storage tank is communicated with the water through hole.
8. The reverse spray gas cleaning device of claim 7, further comprising a first drive means and a delivery tube, said storage tank and said spray assembly being in communication via said delivery tube, said first drive means being connected to said delivery tube, said first drive means being adapted to drive said predetermined liquid in said storage tank to flow along said delivery tube to said spray assembly.
9. The reverse spray gas purification apparatus according to claim 7, wherein a float valve for controlling a liquid level in the water storage tank is provided in the water storage tank.
10. The reverse spray gas cleaning device according to claim 1, wherein a wind speed of the gas to be cleaned entering the gas flow passage is 4m/s or less.
CN202311432934.8A 2023-10-31 2023-10-31 Reverse spray gas purification device Pending CN117258518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311432934.8A CN117258518A (en) 2023-10-31 2023-10-31 Reverse spray gas purification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311432934.8A CN117258518A (en) 2023-10-31 2023-10-31 Reverse spray gas purification device

Publications (1)

Publication Number Publication Date
CN117258518A true CN117258518A (en) 2023-12-22

Family

ID=89208283

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311432934.8A Pending CN117258518A (en) 2023-10-31 2023-10-31 Reverse spray gas purification device

Country Status (1)

Country Link
CN (1) CN117258518A (en)

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