CN210473600U - Gas purification and deodorization device - Google Patents

Gas purification and deodorization device Download PDF

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CN210473600U
CN210473600U CN201921059333.6U CN201921059333U CN210473600U CN 210473600 U CN210473600 U CN 210473600U CN 201921059333 U CN201921059333 U CN 201921059333U CN 210473600 U CN210473600 U CN 210473600U
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pipe
solvent
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input pipe
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王鸿
罗泽良
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Huahui Ecological Environment Industry Co ltd
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Abstract

A gas purification and deodorization device comprising: the device comprises a treatment chamber, a reaction chamber and a reaction chamber, wherein a solvent pool filled with a biological enzyme solution is arranged in the treatment chamber; the gas input pipe is used for conveying gas to be treated into the solvent pool, the gas outlet end of the gas input pipe extends into the solvent pool, the gas input pipe is provided with a reducing section, and the reducing section comprises at least one pipeline with a pipe diameter different from that of the gas input pipe; and a gas delivery pipe for delivering gas from the processing chamber to the outside, the gas delivery pipe being located at an upper portion in the processing chamber. The utility model discloses a gas input tube adopts special variable cross-section pipeline structure for the gas that gets into the gas input tube can evenly, steadily get into the solvent pond under the effect of variable cross-section, improves the high-efficient of foul smell, poison gas in biological enzyme and dissolves, adsorbs, absorbs and degradation effect.

Description

Gas purification and deodorization device
Technical Field
The utility model belongs to the technical field of gaseous purification, especially, relate to a device that purifies deodorization was handled is carried out to odor, poison gas of landfill.
Background
The garbage in the garbage landfill site contains more organic matters, the organic matters and certain moisture can generate toxic gas and odor in the stacking process, and the generated toxic gas and odor contain the following substances: sulfur-containing compounds such as hydrogen sulfide, mercaptans and sulfides; nitrogen-containing compounds such as ammonia, amines, amides, indoles, etc.; halogen such as chlorine and halogenated hydrocarbon and derivatives thereof; hydrocarbons such as alkanes, alkenes, alkynes, and aromatic hydrocarbons; oxygen-containing organic substances such as phenols, alcohols, aldehydes, ketones, organic acids, and the like. Therefore, it is necessary to eliminate odor and toxic gases generated from garbage. The traditional methods for eliminating odor and toxic gases in garbage include spraying, activated carbon adsorption, ultraviolet lamp irradiation and the like. Adopt the mode of spraying to handle, generally install spraying system on the roof in rubbish hall of unloading, open spraying system when rubbish haulage vehicle unloads rubbish, because spraying system will cover whole hall of unloading, can consume a large amount of medicaments when spraying, with high costs, bring secondary pollution in addition easily. By adopting the activated carbon adsorption mode, the humidity of gas generated during garbage fermentation is high, so that the activated carbon is easy to agglomerate, and the adsorption efficiency of the activated carbon is reduced. Although the mode of ultraviolet lamp irradiation does not produce secondary pollution, a large amount of odor and toxic gas still exist in the garbage which can not be irradiated by the ultraviolet lamp, and the effect is not ideal.
The biological enzyme has the functions of dissolving, adsorbing, absorbing and degrading the odor and the toxic gas generated by the garbage, can eliminate and purify the odor gas containing sulfur, nitrogen and the like emitted by the garbage and the like, and can remove and purify SO in the gas2、H2S、NH4And the like, the malodorous components are converted into harmless and odorless substances. The existing technology for deodorizing by using biological enzyme generally conveys gas generated by garbage into a pool filled with biological enzyme solution through a pipeline by an induced draft fan, and toxic and harmful substances in the gas react with the biological enzyme, so that the gas is deodorized and purified. However, the gas generated from the garbage is unstable, sometimes much or little,in the process of conveying the gas to the solution tank through the pipeline, the gas in the pipeline is unstable, the instability is not beneficial to the dissolution, adsorption, absorption and degradation of odor and toxic gas in the biological enzyme, and the deodorization and purification effect still has room for improvement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas purification deodorizing device that deodorization purifying effect is good for eliminate foul smell, the poison gas that rubbish produced.
In order to achieve the above object, the present invention adopts the following technical solutions:
a gas purification and deodorization device comprising: the device comprises a treatment chamber, a reaction chamber and a reaction chamber, wherein a solvent pool filled with a biological enzyme solution is arranged in the treatment chamber; the gas input pipe is used for conveying gas to be treated into the solvent pool, the gas outlet end of the gas input pipe extends into the solvent pool, the gas input pipe is provided with a reducing section, and the reducing section comprises at least one pipeline with a pipe diameter different from that of the gas input pipe; and a gas delivery pipe for delivering gas from the processing chamber to the outside, the gas delivery pipe being located at an upper portion in the processing chamber.
According to the above technical scheme, the utility model discloses a gas input tube adopts special variable cross-section pipeline structure for the gas that gets into gas input tube can evenly, steadily get into the solvent pond under the effect of variable cross-section, improves the high-efficient of foul smell, poison gas in bio-enzyme and dissolves, adsorbs, absorbs and degradation effect, and the foul smell and the poison gas in the rubbish pass through the utility model discloses after the processing of device, can not produce secondary pollution, green to the environment.
Further, the level of the gas inlet end of the gas input pipe is higher than that of the gas outlet end of the gas input pipe.
The air inlet end of the air input pipe is higher than the air outlet end, so that the biological enzyme solution can not flow back under the condition of not increasing a check valve, the structure is simplified, and the cost is reduced.
More specifically, the gas input pipe comprises a front section, a middle section and a rear section which are sequentially connected to form a Z-shaped pipeline, at least one air outlet hole is formed in the pipe wall of the rear section, and the reducing section is located on the middle section.
More specifically, the front section and the rear section extend horizontally, the middle section extends vertically and is perpendicular to the front section and the rear section, and the horizontal height of the front section is higher than that of the rear section.
More specifically, the reducing section comprises a plurality of sections of pipelines with different pipe diameters from those of the gas input pipe, the pipelines of the sections are arranged at intervals, and the pipe diameters of the pipelines of the sections are the same or different.
More than one section of pipelines with different pipe diameters are arranged to form a reducing section, so that the process of discharging gas into the biological enzyme solution is more stable and uniform.
Preferably, the pipe diameter of the rear section of the gas input pipe is continuously decreased progressively from front to back, and a plurality of air inlets arranged at intervals are arranged on the pipe wall of the rear section.
More specifically, still include with draught fan and header tank, the air-out end of draught fan with the inlet end of gas input pipe links to each other, the header tank pass through the solvent pipeline with solvent pond intercommunication.
More specifically, still be provided with screen cloth, filter material adsorbed layer and spray set in the treatment chamber, screen cloth, filter material adsorbed layer, spray set are located in proper order the top in solvent pond, spray set to the filter material adsorbed layer sprays biological enzyme solution, the gas output tube is located the top of spray set's shower nozzle, at least one exhaust hole has been seted up on the pipe wall of gas output tube.
Through the spray set who sets up screen cloth, filter material adsorbed layer and biological enzyme solution in the treatment chamber, can make gaseous a plurality of purification deodorization processes of experiencing in the treatment chamber, make the treatment effect better.
Preferably, the gas output pipe is provided with an induced draft fan.
Further, the gas purification and deodorization device comprises a plurality of processing chambers, and a gas output pipe of one processing chamber is connected with a gas input pipe of the next adjacent processing chamber, so that the gas to be processed continuously passes through the plurality of processing chambers.
Preferably, the system also comprises a liquid level meter arranged in the solvent pool, a hydraulic pump for pumping the biological enzyme solution in the liquid collecting tank into the solvent pool, a PLC control unit connected with the liquid level meter, a waste liquid discharge pipeline communicated with the solvent pipeline, and an electric valve arranged on the solvent pipeline, an output pipeline of the liquid collecting tank and the waste liquid discharge pipeline, wherein the PLC control unit controls the working states of the hydraulic pump and the electric valve through a relay.
Through the setting, the utility model discloses a device can regularly change biological enzyme fungus liquid automatically, keeps the biological enzyme liquid level height in the solvent pond at the assigned position, has solved current rubbish poison gas odor treatment device and can not carry out automatic change to biological enzyme fungus liquid to and the problem of the height of automatic control biological enzyme fungus layer liquid level.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a gas inlet pipe according to an embodiment of the present invention;
FIG. 3 illustrates an embodiment of the present invention for containing NH3、H2Concentration comparison graph before and after gas treatment of S.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings, wherein for convenience of illustration, the drawings showing the structure of the device are not to scale and are partially enlarged, and the drawings are only examples, which should not limit the scope of the invention. It should be noted that the drawings are in simplified form and are not to precise scale, which is only used for the purpose of facilitating and clearly assisting in the description of the embodiments of the present invention.
As shown in FIG. 1, the gas purification and deodorization device of the present embodiment includes a processing chamber 1, a gas inlet pipe 2, a gas outlet pipe 3, and a header tank 4, wherein a bio-enzyme solution is stored in the header tank 4. The header tank 4 of the present embodiment is provided outside the process chamber 1. The bottom of the treatment chamber 1 is provided with a solvent pool 1a, and the solvent pool 1a is filled with a biological enzyme solution, so that a biological enzyme bacteria liquid layer is formed. The solvent pool 1a is communicated with the liquid collecting box 4 through a solvent pipeline a, and under the action of the hydraulic pump 5, the biological enzyme solution in the liquid collecting box 4 is conveyed into the solvent pool 1a through the solvent pipeline a. Electric valves 6 for controlling the on-off of the pipelines are arranged on the solvent pipeline a, the output pipeline b of the liquid collecting box 4 and the waste liquid discharge pipeline c. The biological enzyme solution can contain one or more pure natural, pollution-free, efficient, non-toxic and environment-friendly biocatalysts screened and cultured from mature probiotic strains, the chemical essence of the biocatalysts is protein, and the biocatalysts can dissolve, adsorb, absorb and degrade odor and toxic gases of garbage.
The horizontal height of the air inlet end of the gas input pipe 2 is higher than that of the air outlet end, the air inlet end of the gas input pipe is connected with the air outlet end of the induced draft fan 7, the air outlet end extends into the solvent pool 1a, and odor and toxic gas in the refuse landfill enter the gas input pipe 2 under the action of the induced draft fan 7 and are led to the solvent pool 1a through the gas input pipe 2. Referring to fig. 2, the gas inlet pipe 2 of the present embodiment is a substantially zigzag pipe, and includes a front section 2a, a middle section 2b, and a rear section 2c connected in sequence, the front section 2a extends horizontally and is connected to the air outlet end of the induced draft fan 7, the rear section 2c extends horizontally and is located in the solvent pool 1a, and the horizontal height of the front section 2a is higher than the horizontal height of the rear section 2 b. Anterior segment 2a and back end 2c of gas input pipe 2 link to each other through the middle section 2b of vertical setting, and the middle section 2c of gas input pipe 2 of this embodiment is vertical extends to be perpendicular mutually with anterior segment 2a and back end 2b of gas input pipe 2. The gas input pipe 2 comprises a diameter-variable section 2D, the diameter-variable section 2D of the embodiment is positioned on the middle section 2b of the gas input pipe 2, the diameter-variable section 2D at least comprises a section of pipeline with a pipe diameter different from that of the gas input pipe 2, the diameter-variable section 2D of the embodiment comprises 3 sections of pipelines (2D-1, 2D-2 and 2D-3) with a pipe diameter different from that of the gas input pipe 2, the pipe diameter of the pipeline 2D-1 is phi D1, the pipe diameter of the pipeline 2D-2 is phi D2, the pipe diameter of the pipeline 2D-3 is phi D3, and the pipe diameter of the gas input pipe 2 is phi D. Phi D1, phi D2 and phi D3 are all not equal to phi D, and the values of phi D1, phi D2 and phi D3 can be equal or not. Through set up one section change's reducing section 2d on gas input pipe 2 for the pipe diameter of gas input pipe is changed, makes pressure, the velocity of flow of the gas on the different space sections in reducing section 2d different, according to hydrodynamics, under certain reynolds number Re, gas can realize stabilizing the outflow behind reducing section 2 d.
At least one gas outlet hole 2e is arranged on the pipe wall of the rear section 2c of the gas input pipe 2, and gas in the gas input pipe 2 enters the solvent pool 1a through the gas outlet hole 2 e. Furthermore, the rear section 2c of the gas input pipe 2 is a pipeline with a continuously changing pipe diameter, and the pipe diameter of the rear section 2c of the gas input pipe 2 is continuously decreased from front to back, so that the contact time of odor and toxic gas with a biological enzyme bacterial liquid layer can be prolonged, and the dissolving, adsorbing, absorbing and degrading effects of biological enzyme on garbage odor and toxic gas are improved. The air outlet holes 2e are preferably formed in the bottom of the rear section 2c of the gas inlet pipe 2, the air outlet holes 2e may be narrow holes, circular holes, square holes, or the like, and the diameters of the air outlet holes 2e may be the same or different, or the shapes thereof may be the same or different. Aiming at a certain specific Reynolds number Re, the air inlet holes are arranged at the positions corresponding to the pipe diameters, so that the pressure at the positions of the air outlet holes 2e is equal, and the odor and the toxic gas in the gas input pipe can stably flow into the bio-enzyme bacterial liquid layer, thereby improving the efficient dissolution, adsorption, absorption and degradation effects of the bio-enzyme on the garbage odor and the toxic gas.
The treatment chamber 1 is also internally provided with a screen 8, a filter material adsorption layer 9 is arranged above the screen 8, and filter material balls or environment-friendly balls and the like are arranged at the filter material adsorption layer 9. The screen 8 is a porous structure, so that odor and poison gas can smoothly pass through the screen 8 and enter the filter material adsorption layer 9. A spraying device 10 is arranged above the filter material adsorption layer 9, the spraying device 10 is communicated with the solvent pool 1a through a pipeline, and under the action of the hydraulic pump 5, the biological enzyme solution in the solvent pool 1a can be conveyed to the spraying device 10 and sprayed to the filter material adsorption layer 9 through a spray head of the spraying device 10. The filter material adsorption layer 9 mainly functions to increase the passing time of the odor and the toxic gas in the interior so as to prolong the contact time of the odor and the toxic gas and the biological enzyme solution sprayed by the spraying device, thereby enabling the biological enzyme to fully dissolve, adsorb, absorb and degrade the odor and the toxic gas.
The gas outlet pipe 3 is provided at an upper portion in the processing chamber 1, and the gas outlet pipe 3 of this embodiment is located above the showerhead of the shower apparatus 10. At least one vent hole (not shown) is arranged on the pipe wall of the gas output pipe 3, and the gas passing through the filter material adsorption layer 9 can enter the gas output pipe 3 through the vent hole on the pipe wall of the gas output pipe 3 and is discharged outwards through the gas output pipe 3. An induced draft fan 7 can also be arranged on the gas output pipe 3. The shape, size and number of the through holes on the pipe wall of the gas output pipe 3 can be set according to the actual situation, as long as the requirements of timely discharging odor and toxic gas can be met.
The working process of the gas purification and deodorization device of the embodiment is as follows: the garbage odor and the toxic gas in the garbage landfill site enter a heating device 11 under the action of an induced draft fan 7, partial odor and the toxic gas can be eliminated by the high temperature of the heating device 11, the odor and the toxic gas after high-temperature treatment enter a treatment chamber 1 through a gas input pipe 2, sequentially pass through a biological enzyme bacterial liquid layer, a screen and a filter material adsorption layer in the treatment chamber 1, enter a gas discharge pipe 3 after spraying treatment of a spraying device, and finally are discharged outwards through a gas discharge pipe 3.
The utility model discloses a gaseous deodorization device that purifies can set up a treatment chamber, also can set up the same treatment chamber of a plurality of structures, and when being provided with a plurality of treatment chambers, the gas output tube 3 of each treatment chamber and the gas input tube 2 of adjacent next treatment chamber link to each other for pending gas can purify deodorization through a plurality of treatment chambers in succession and handle. For example, the gas purification and deodorization device of this embodiment is provided with two processing chambers, and the gas outlet pipe 3 of the first processing chamber is connected to the gas inlet pipe 2 of the second processing chamber, so that the gas processed by the first processing chamber can enter the second processing chamber to continue processing. The number of the treatment chambers is set according to the deodorization and purification effect of the gas, and the gas discharged from the last treatment chamber is set on the basis of reaching the discharge standard. When a plurality of processing chambers are provided, the solvent pools in the respective processing chambers may be in communication with each other, or may not be in communication with each other. The mutual independence of the solvent pools is more beneficial to improving the deodorization and purification effect of the gas, for example, taking 100ml of gas to be treated as an example, assuming that the volumes of the biological enzymes in the solvent pools of the two treatment chambers are both 1000ml, when the two solvent pools are communicated, the concentrations of the biological enzymes after being treated by the first treatment chamber and the second treatment chamber are as follows: 100/(100+2000) ═ 0.0476; when the two solvent pools are independent from each other, the concentration of the biological enzyme after being treated by the first treatment chamber is as follows: 100/(100+1000) ═ 0.0909, the concentration of bio-enzyme after treatment in the second treatment chamber was: 0.0909/(0.0909+1000) ═ 0.0000909, which is better than the treatment effect when two solvent pools are communicated.
As a preferred embodiment of the utility model, can set up level gauge 12 in solvent pond 1a and the liquid collecting tank 4, level gauge 12 is connected with PLC the control unit 13, and PLC the control unit 13 is connected with alarm device, and when the liquid level height of biological enzyme was not in the settlement scope in solvent pond 1a, alarm device (such as bee calling organ 14, alarm lamp 15) can send alarm signal. Furthermore, the PLC control unit 13 can control the on/off of the electric valves 6 on the solvent pipes through the relay 16, so as to realize the automatic replacement of the bio-enzyme solution in the solvent pool, for example, when the preset solution replacement time is reached, the PLC control unit 13 controls the electric valves 6 on the solvent pipe a and the electric valve 6 on the waste liquid discharge pipe c to open through the relay 16, closes the electric valve 6 on the output pipe b of the collection tank 4, and first empties the solution in the solvent pool 1 a; then, the electric valve 6 on the waste liquid discharge pipeline c is closed, the electric valve 6 on the output pipeline b of the liquid collecting box 4 is opened, the hydraulic pump 5 is controlled to work, the biological enzyme solution in the liquid collecting box 4 is conveyed into the solvent pool 1a, and after the operation is finished, the electric valve 6 on the solvent pipeline a is closed.
The deodorizing and purifying device of the utility model is composed of biological enzyme and H2S、NH3When harmful gas is generated, sufficient conditions are provided, and nitration reaction (2 NH) can be carried out in the processing chamber4 ++3O2=2NO2 -+2H2O+4H+) Desulfurization reaction (2H)2S+O2=2H2O+2S,2S+3O2+2H2O=2H2S+4O2) And combined denitrogenation and sulfur removal reaction (2 NO)3+10H++10e=N2+4H2O+2OH-,2H2S+2NO3=2H2O+S+N2+SO4) And the like, so as to realize the deodorization and purification of the garbage gas.
Take the Guiyang domestic waste landfill site as an example, this landfill site is handled rubbish 300 tons daily, and the working area (exposed area) 2000 square adopts the utility model discloses a gas purification deodorizing device handles the gas that this landfill site's rubbish produced, sets up the collection point next door certain limit in the landfill site, adopts under the same conditions the utility model discloses a gas purification deodorizing device is to containing NH3The concentration contrast result before, after H2S's gas treatment is shown in following table and figure 3, and can see from the comparison of following table and figure 3, the utility model discloses a gaseous deodorization purifier has better treatment effect to foul smell, the poison gas that rubbish produced, and foul smell and poison gas in the landfill yard can be purified, and the gas after the device is handled accords with national emission standard, can directly get into the environment, and the equipment investment is few, easy operation, and the running cost is low, and the security performance is good.
NH before and after treatment3、H2S concentration comparison result table
Figure BDA0002122448440000071
Of course, the technical concept of the present invention is not limited to the above embodiments, and many different specific schemes can be obtained according to the concept of the present invention, for example, the screen mesh and the filter material ball adsorption layer in the processing chamber, and one or more sets of spraying devices can be provided according to the requirement and the space condition; the gas inlet pipe and the gas outlet pipe may be circular pipes, square pipes, polygonal pipes, etc., and circular pipes are preferably used from the viewpoint of easy processing; such modifications and equivalents are intended to be included within the scope of the present invention.

Claims (11)

1. A gas purification and deodorization device, comprising:
the device comprises a treatment chamber, a reaction chamber and a reaction chamber, wherein a solvent pool filled with a biological enzyme solution is arranged in the treatment chamber;
the gas input pipe is used for conveying gas to be treated into the solvent pool, the gas outlet end of the gas input pipe extends into the solvent pool, the gas input pipe is provided with a reducing section, and the reducing section comprises at least one pipeline with a pipe diameter different from that of the gas input pipe;
and a gas delivery pipe for delivering gas from the processing chamber to the outside, the gas delivery pipe being located at an upper portion in the processing chamber.
2. The gas purification and deodorization device as set forth in claim 1, wherein: the horizontal height of the gas inlet end of the gas input pipe is higher than that of the gas outlet end of the gas input pipe.
3. The gas purification and deodorization device as set forth in claim 2, wherein: the gas input pipe comprises a front section, a middle section and a rear section which are sequentially connected to form a Z-shaped pipeline, at least one gas outlet hole is formed in the pipe wall of the rear section, and the reducing section is located on the middle section.
4. The gas purification and deodorization device as set forth in claim 3, wherein: the front section and the rear section extend horizontally, the middle section extends vertically and is perpendicular to the front section and the rear section, and the horizontal height of the front section is higher than that of the rear section.
5. The gas cleaning and deodorizing device according to claim 1, 2, 3 or 4, wherein: the reducing section comprises a plurality of sections of pipelines with different pipe diameters from the gas input pipe, the pipelines of the sections are arranged at intervals, and the pipe diameters of the pipelines of the sections are the same or different.
6. The gas purification and deodorization device as set forth in claim 1, wherein: the pipe diameter of the rear section of the gas input pipe is continuously decreased progressively from front to back, and a plurality of gas inlet holes which are arranged at intervals are formed in the pipe wall of the rear section.
7. The gas cleaning and deodorizing device according to claim 1, 2, 3, 4 or 6, wherein: still include with draught fan and header tank, the air-out end of draught fan with the inlet end of gas input pipe links to each other, the header tank pass through the solvent pipeline with solvent pond intercommunication.
8. The gas purification and deodorization device as set forth in claim 7, wherein: still be provided with screen cloth, filter material adsorbed layer and spray set in the treatment chamber, screen cloth, filter material adsorbed layer, spray set are located in proper order the top in solvent pond, spray set to the filter material adsorbed layer sprays biological enzyme solution, the gas output tube is located the top of spray set's shower nozzle, at least one exhaust hole has been seted up on the pipe wall of gas output tube.
9. The gas purification and deodorization device as set forth in claim 8, wherein: and the gas output pipe is provided with an induced draft fan.
10. A gas cleaning and deodorizing device according to claim 1, 2, 3, 4, 6, 8 or 9, characterized in that: the gas purification and deodorization device comprises a plurality of processing chambers, wherein a gas output pipe of one processing chamber is connected with a gas input pipe of the next processing chamber, so that the gas to be processed continuously passes through the plurality of processing chambers.
11. The gas purification and deodorization device as set forth in claim 7, wherein: still including set up in level gauge in the solvent pond, with the biological enzyme pump that goes into in the header tank is dissolved to the solvent pond in, with PLC the control unit that the level gauge links to each other, with the waste liquid discharge pipeline of solvent pipeline intercommunication and set up in the output pipeline of solvent pipeline, header tank with motorised valve on the waste liquid discharge pipeline, PLC the control unit passes through relay control the operating condition of hydraulic pump and motorised valve.
CN201921059333.6U 2019-07-08 2019-07-08 Gas purification and deodorization device Active CN210473600U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113058398A (en) * 2021-03-25 2021-07-02 中国城市建设研究院有限公司 Movable integrates biological deodorization system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113058398A (en) * 2021-03-25 2021-07-02 中国城市建设研究院有限公司 Movable integrates biological deodorization system
CN113058398B (en) * 2021-03-25 2022-07-05 中国城市建设研究院有限公司 Movable integrates biological deodorization system

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