CN219091569U - Waste gas purifying device - Google Patents
Waste gas purifying device Download PDFInfo
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- CN219091569U CN219091569U CN202222551023.4U CN202222551023U CN219091569U CN 219091569 U CN219091569 U CN 219091569U CN 202222551023 U CN202222551023 U CN 202222551023U CN 219091569 U CN219091569 U CN 219091569U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to the technical field of sewage treatment, in particular to an exhaust gas purification device, which comprises the following technical scheme: the adsorption oxidation tank is provided with an adsorption layer in the middle, and two sides of the upper part of the adsorption oxidation tank are respectively communicated with a water inlet pipe and an air outlet pipe; the air inlet pipe enters from the top of the adsorption oxidation tank and extends to the lower part of the adsorption layer, and is used for conveying the waste gas into the adsorption oxidation tank; the ozone mixing tank is circularly communicated with the lower part of the adsorption oxidation tank through a circulating conveying pipe, the top of the ozone mixing tank is communicated with an ozone conveying pipeline, and a water pump is arranged on the circulating conveying pipe; the utility model has the advantages of high purification efficiency, occupied area saving and good safety.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to an exhaust gas purifying device.
Background
The sewage treatment facility operation in-process can produce the waste gas of certain concentration, mainly derives from processes such as grid, aeration, mud concentration, and waste gas includes malodorous gas and VOCs etc. malodorous gas major component has 3 types: sulfur-containing compounds, nitrogen-containing compounds, hydrocarbon or hydrocarbon oxygen compounds, which pollute the environment and affect the health of human bodies, and the pollution of the waste gas is one of seven environmental nuisances in the world, and the malodorous pollutants are limited by the issued malodorous pollutant emission standard in China.
The prior means for treating the waste gas mainly adopts: direct combustion, catalytic oxidation, ozone deodorization, active carbon adsorption, liquid medicine spraying, biological deodorization, etc. The prior Chinese patent with reference to application publication number CN111760440A discloses malodorous gas treatment equipment of a sewage treatment plant, which comprises a malodorous gas chamber, a filtering chamber, a deodorizing chamber and a sterilizing chamber which are connected in sequence through a gas pipe; an exhaust fan is arranged on the air pipe, a cylinder body is arranged in the filtering chamber, limiting plates are arranged at two ends of the cylinder body, a plurality of air holes are formed in the limiting plates, and activated carbon is filled between every two adjacent limiting plates; a spiral pipe is arranged in the deodorizing chamber, an air inlet pipe is arranged at the bottom of the spiral pipe, an air outlet pipe is arranged at the top of the spiral pipe, and the air inlet pipe is also connected with an ozone conveying pipe; and a circuitous pipe is arranged in the sterilizing chamber, and a plurality of ultraviolet lamps are arranged on the inner wall of the circuitous pipe.
The sewage deodorizing device has the advantages that a plurality of devices are combined for use, the cost is high, the occupied area is large, malodorous gas needs to flow through the filtering chamber, the deodorizing chamber, the sterilizing chamber and the like in sequence through a plurality of air pipes, and the leakage risk and the gas explosion hidden danger exist. In addition, since the prior art uses an adsorbent such as activated carbon, the amount of adsorbent is fixed, and therefore, the adsorbent whose adsorption is saturated needs to be periodically regenerated, which increases the purification step and the cost.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides the waste gas purifying device which has the advantages of high purifying efficiency, occupied area saving and good safety.
The above object of the present utility model is achieved by the following technical solutions:
the present utility model provides an exhaust gas purifying apparatus including:
the adsorption oxidation tank is characterized in that two sides of the upper part of the adsorption oxidation tank are respectively communicated with a water inlet pipe and a gas outlet pipe, and the middle part of the adsorption oxidation tank is provided with an adsorption layer;
the air inlet pipe enters from the top of the adsorption oxidation tank and extends to the lower part of the adsorption layer, and is used for conveying the waste gas into the adsorption oxidation tank;
and the ozone mixing tank is circularly communicated with the lower part of the adsorption oxidation tank through a circulating conveying pipe, the top of the ozone mixing tank is communicated with an ozone conveying pipeline, and a water pump is arranged on the circulating conveying pipe.
By adopting the technical scheme, the device periodically operates when in use, and the waste gas is purified in two stages; the waste gas enters the empty adsorption oxidation tank through the air inlet pipe, and the air inlet pipe extends to the lower part of the adsorption layer, so that the waste gas is upwards diffused through the adsorption layer, at the moment, the adsorption layer adsorbs odor components and VOCs in the waste gas, and the adsorbed gas is pumped away through the air outlet pipe to finish primary purification; then, water is injected into the adsorption oxidation tank through a water inlet pipe until the water level is higher than the upper part of the adsorption layer, a water pump is started to pump out part of water in the adsorption oxidation tank through a circulating conveying pipe to serve as circulating water and convey the circulating water to an ozone mixing tank, ozone entering through an ozone conveying pipeline is driven by the circulating water to enter the adsorption oxidation tank along the circulating conveying pipe, the ozone is fully contacted with waste gas adsorbed by the adsorption layer, and therefore the waste gas adsorbed by the adsorption layer is decomposed into oxygen, water, carbon dioxide or small-molecular harmless or low-harmful compounds and the like, and therefore the waste gas is secondarily purified, the purifying effect is improved, and the adsorbent is regenerated while the secondary purification is carried out; finally, the purified gas overflows the water surface and is pumped away through an air outlet pipe; because the secondary purification is performed underwater, when ozone and waste gas are oxidized, explosive substances can be generated, and the process isolates oxygen underwater and reduces the environmental temperature, so that the explosion condition is not reached, the explosion-proof effect is achieved, and the safety of the device is improved; the whole purifying process is carried out in the same tank body, the aim of purifying for many times in one device is fulfilled, the occupied area of the device is saved, and the running cost is reduced.
Further, the lower part of the adsorption oxidation tank is also communicated with a water outlet pipe.
By adopting the technical scheme, the water level in the tank can be conveniently adjusted or the water in the tank can be conveniently discharged.
Further, the adsorption layer is fixed in the middle part of adsorption oxidation jar through supporting the grid, the supporting grid is provided with upper and lower two, the supporting grid can dismantle with adsorption oxidation jar and be connected.
Through adopting above-mentioned technical scheme to be fixed in the adsorption oxidation jar with the adsorbed layer through two upper and lower support grids, make it can not sink into the tank bottom, increase the area of contact with waste gas.
Further, the adsorption layer is an activated carbon layer.
By adopting the technical scheme, the activated carbon has a large specific surface area, so that the activated carbon has an excellent purification effect in the process of adsorbing waste gas.
Further, the circulating conveying pipe comprises an upper circulating conveying pipe and a lower circulating conveying pipe, the upper portion of the ozone mixing tank is communicated with the lower portion of the adsorption oxidation tank through the upper circulating conveying pipe, the lower portion of the ozone mixing tank is communicated with the lower portion of the adsorption oxidation tank through the lower circulating conveying pipe, and the water pump is arranged on the lower circulating conveying pipe.
By adopting the technical scheme, when the water pump is started, the water in the partial adsorption oxidation tank is promoted to be supplied to the lower part in the adsorption oxidation tank, and the ozone is diffused upwards to be in contact with the adsorption layer, so that the purifying effect is improved.
Further, at least one valve is arranged on the circulating conveying pipe.
Through adopting above-mentioned technical scheme, the flow of the circulation pipeline of being convenient for control simultaneously is convenient for control circulation pipeline's flow direction, increases the security of device.
Further, a second valve is arranged on the ozone conveying pipeline.
By adopting the technical scheme, the ozone flow entering the ozone mixing tank can be conveniently controlled, and the ozone input can be started or stopped as required.
Further, the height of the adsorption layer is 1/5-2/3 of the height of the adsorption oxidation tank.
By adopting the technical scheme, the waste gas can be fully adsorbed, and the purification efficiency can be improved.
In summary, the present utility model includes at least one of the following beneficial technical effects:
the waste gas purifying device of the utility model operates periodically, both purification is completed in one device, the purification effect is increased, and the occupied area and the operation cost are saved; the adsorbent is regenerated while the pollutants are oxidized by ozone in the secondary purification stage, so that the replacement cost and the operation steps of the adsorbent are saved; the ozone purification process is carried out under water, and fully contacts with the waste gas absorbed by the adsorption layer, can play an explosion-proof role when improving the purifying effect, and the gas overflowing from the water surface is pumped away through the gas outlet pipe, so that the danger caused by overlarge gas density is avoided, and the whole device has high safety and good purifying effect.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present embodiment.
In the figure, 1, an adsorption oxidation tank; 11. a water inlet pipe; 12. an air outlet pipe; 13. an adsorption layer; 14. a support grid; 15. a water outlet pipe; 2. an air inlet pipe; 3. an ozone mixing tank; 31. a water pump; 32. an ozone delivery conduit; 321. a second valve; 4. a circulation conveying pipe; 41. a valve; 42. an upper circulation conveying pipe; 43. and a lower circulation conveying pipe.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
In order to facilitate understanding of the present utility model by those skilled in the art, a specific embodiment of the present utility model will be described below with reference to fig. 1.
Referring to fig. 1, an exhaust gas purifying apparatus according to the present utility model includes an adsorption oxidation tank 1, an air intake pipe 2, an ozone mixing tank 3, and a circulation duct 4.
Referring to fig. 1, an adsorption oxidation tank 1 has a cylindrical vertical structure, an accommodating space is formed in the adsorption oxidation tank 1, two sides of the upper part of the adsorption oxidation tank 1 are respectively communicated with a water inlet pipe 11 and an air outlet pipe 12, tap water can be injected into the adsorption oxidation tank through the water inlet pipe 11, and air at the upper part of the adsorption oxidation tank can be pumped out through the air outlet pipe 12; the middle part of the adsorption oxidation tank 1 is provided with an adsorption layer 13, the adsorption layer 13 is fixed on the inner wall of the adsorption oxidation tank 1 through an upper support grid 14 and a lower support grid 14, and the support grids 14 are detachably connected with the adsorption oxidation tank 1, so that the adsorption layer 13 is convenient to replace; the height of the adsorption layer 13 is 1/5-2/3 of the height of the adsorption oxidation tank 1, and in the embodiment, the height of the adsorption layer 13 is 1/3 of the height of the adsorption oxidation tank 1; preferably, the adsorption layer 13 is an activated carbon layer; the lower part of the adsorption oxidation tank 1 is also communicated with a water outlet pipe 15.
Referring to fig. 1, an intake pipe 2 enters from the top of the adsorption oxidation tank 1 and extends to below a support grid 14 at the lower part of the adsorption layer 13 for delivering exhaust gas into the adsorption oxidation tank 1; after the exhaust gas enters the adsorption oxidation tank 1 through the intake pipe 2, the exhaust gas is fully contacted with the adsorption layer 13 along with upward diffusion of the exhaust gas.
Referring to fig. 1, an ozone mixing tank 3 is in circulation communication with the lower part of an adsorption oxidation tank 1 through a circulation conveying pipe 4, and a water pump 31 is arranged on the circulation conveying pipe 4; the circulation duct 4 is further provided with at least one valve 41 for controlling the flow direction and the flow rate, and in this embodiment, the circulation duct 4 is provided with three valves 41; the circulation conveying pipe 4 comprises an upper circulation conveying pipe 42 and a lower circulation conveying pipe 43, the upper part of the ozone mixing tank 3 is communicated with the lower part of the adsorption oxidation tank 1 through the upper circulation conveying pipe 42, the lower part of the ozone mixing tank 3 is communicated with the lower part of the adsorption oxidation tank 1 through the lower circulation conveying pipe 43, and preferably, the water pump 31 is arranged on the lower circulation conveying pipe 43; the top of the ozone mixing tank 3 is communicated with an ozone conveying pipeline 32, and a second valve 321 is arranged on the ozone conveying pipeline 32 so as to control the ozone flow entering the ozone mixing tank 3 and start or stop the ozone input according to the requirement.
The implementation principle of the embodiment is as follows: the device is operated periodically when in use, and waste gas is purified in two stages; the waste gas enters the empty adsorption oxidation tank 1 through the air inlet pipe 2, and the air inlet pipe 2 extends to the lower part of the adsorption layer 13, so that the waste gas is upwards diffused through the adsorption layer 13, at the moment, the adsorption layer 13 adsorbs odor components and VOCs therein, and the adsorbed gas is pumped away through the air outlet pipe 12 to finish primary purification; then, water is injected into the adsorption oxidation tank 1 through the water inlet pipe 11 until the water level is higher than the upper part of the adsorption layer 13, the water pump 31 is started to pump out part of water in the adsorption oxidation tank 1 through the circulating conveying pipe 4 to serve as circulating water and convey the circulating water to the ozone mixing tank 3, ozone entering through the ozone conveying pipe 32 is driven by the circulating water to enter the adsorption oxidation tank 1 along the circulating conveying pipe 4, the ozone is fully contacted with waste gas adsorbed by the adsorption layer 13, and therefore the waste gas adsorbed by the adsorption layer 13 is decomposed into oxygen, water, carbon dioxide or small-molecular harmless or low-harmful compounds and the like, the waste gas is secondarily purified, the purifying effect is improved, and the adsorbent is regenerated while the secondary purification is performed; finally, the purified gas overflows the water surface and is pumped out through the gas outlet pipe 12; because the secondary purification is performed underwater, when ozone and waste gas are oxidized, explosive substances can be generated, and the process isolates oxygen underwater and reduces the environmental temperature, so that the explosion condition is not reached, the explosion-proof effect is achieved, and the safety of the device is improved; the whole purifying process is carried out in the same tank body, the aim of purifying for many times in one device is fulfilled, the occupied area of the device is saved, and the running cost is reduced.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The embodiments of the present utility model described above do not limit the scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model as set forth in the appended claims.
Claims (8)
1. An exhaust gas purifying apparatus, characterized by comprising:
the adsorption oxidation device comprises an adsorption oxidation tank (1), wherein two sides of the upper part of the adsorption oxidation tank (1) are respectively communicated with a water inlet pipe (11) and an air outlet pipe (12), and an adsorption layer (13) is arranged in the middle of the adsorption oxidation tank;
the air inlet pipe (2) enters from the top of the adsorption oxidation tank (1) and extends to the lower part of the adsorption layer (13) for conveying the waste gas into the adsorption oxidation tank (1);
and the ozone mixing tank (3) is circularly communicated with the lower part of the adsorption oxidation tank (1) through a circulating conveying pipe (4), an ozone conveying pipeline (32) is communicated with the top of the ozone mixing tank, and a water pump (31) is arranged on the circulating conveying pipe (4).
2. An exhaust gas purifying apparatus according to claim 1, wherein: the lower part of the adsorption oxidation tank (1) is also communicated with a water outlet pipe (15).
3. An exhaust gas purifying apparatus according to claim 1, wherein: the adsorption layer (13) is fixed in the middle of the adsorption oxidation tank (1) through a support grid (14), the support grid (14) is provided with an upper part and a lower part, and the support grid (14) is detachably connected with the adsorption oxidation tank (1).
4. An exhaust gas purifying apparatus according to any one of claims 1 to 3, wherein: the adsorption layer (13) is an active carbon layer.
5. An exhaust gas purifying apparatus according to claim 1, wherein: the circulating conveying pipe (4) comprises an upper circulating conveying pipe (42) and a lower circulating conveying pipe (43), the upper portion of the ozone mixing tank (3) is communicated with the lower portion of the adsorption oxidation tank (1) through the upper circulating conveying pipe (42), the lower portion of the ozone mixing tank (3) is communicated with the lower portion of the adsorption oxidation tank (1) through the lower circulating conveying pipe (43), and the water pump (31) is arranged on the lower circulating conveying pipe (43).
6. An exhaust gas purifying apparatus according to claim 1, wherein: at least one valve (41) is arranged on the circulating conveying pipe (4).
7. An exhaust gas purifying apparatus according to claim 1, wherein: the ozone conveying pipeline (32) is provided with a second valve (321).
8. An exhaust gas purifying apparatus according to claim 1, wherein: the height of the adsorption layer (13) is 1/5-2/3 of the height of the adsorption oxidation tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222551023.4U CN219091569U (en) | 2022-09-26 | 2022-09-26 | Waste gas purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222551023.4U CN219091569U (en) | 2022-09-26 | 2022-09-26 | Waste gas purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219091569U true CN219091569U (en) | 2023-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222551023.4U Active CN219091569U (en) | 2022-09-26 | 2022-09-26 | Waste gas purifying device |
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| Country | Link |
|---|---|
| CN (1) | CN219091569U (en) |
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2022
- 2022-09-26 CN CN202222551023.4U patent/CN219091569U/en active Active
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