CN212166974U - Deodorization device - Google Patents
Deodorization device Download PDFInfo
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- CN212166974U CN212166974U CN202020451473.4U CN202020451473U CN212166974U CN 212166974 U CN212166974 U CN 212166974U CN 202020451473 U CN202020451473 U CN 202020451473U CN 212166974 U CN212166974 U CN 212166974U
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Abstract
The utility model discloses a deodorizing device. The method comprises the following steps: the gas inlet device, the first valve, the membrane component and the gas discharge receiving device are connected in sequence, and membrane filaments are arranged in the membrane component; the first valve is used for controlling odor in the gas inlet device to enter the membrane module from a gas inlet at the top of the membrane module and then to be discharged from a gas outlet at the bottom of the membrane module to enter the gas discharge receiving device; the odor comprises hydrogen sulfide; and the absorption liquid tank is sequentially connected with the water pump and a liquid inlet below the absorption liquid tank, and the water pump is used for conveying the absorption liquid in the absorption liquid tank to the membrane module and returning the absorption liquid to the absorption liquid tank from the liquid outlet above the membrane module. The utility model provides a treatment problem of the foul smell of production such as sewage treatment plant, deodorizing device simple structure, convenient operation, environmental protection pollution-free, operating cost are low, and gas phase and liquid phase reverse contact in the membrane module can make the absorption liquid absorb and reach the separation deodorization purpose fast to the foul smell high efficiency, have reduced the content of foul gas and microorganism aerosol in giving vent to anger.
Description
Technical Field
The utility model belongs to the gas treatment field, more specifically relates to a deodorizing device.
Background
The odor treatment system is a key technology for deodorization, and the current odor treatment technologies discharged by municipal sewage treatment plants mainly comprise a biological deodorization technology, a chemical deodorization technology, a biological-chemical coupling technology, a plasma deodorization technology and the like. In the face of higher emission standard, the removal of trace pollutants is imperative, and meanwhile, the conventional treatment technology needs to be upgraded to achieve the aim of effective deodorization because the existing chemical washing has the problems of large occupied area of the deodorization technology, small gas-liquid contact surface, medicament wrapped and carried by the discharged gas and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of large occupied area, small gas-liquid contact surface and medicament treatment by wrapping the discharged gas in the existing chemical washing and deodorizing technology.
In order to achieve the above object, the present invention provides a deodorization device, including:
the device comprises an air inlet device, a first valve, a fan, a membrane assembly and a gas discharge receiving device which are connected in sequence, wherein membrane filaments are arranged in the membrane assembly; the first valve and the fan are used for controlling odor in the air inlet device to enter the membrane module from an air inlet at the top of the membrane module and then to be discharged from an air outlet at the bottom of the membrane module to enter the air discharge receiving device; the odor comprises hydrogen sulfide;
the absorption liquid tank is sequentially connected with the water pump and the liquid inlet below the membrane module, and the water pump is used for conveying absorption liquid in the absorption liquid tank into the membrane module and returning the absorption liquid into the absorption liquid tank from the liquid outlet above the membrane module;
the gas inlet device with be provided with first sample connection between the membrane module, the membrane module with be provided with the second sample connection between the gas emission receiving arrangement, first sample connection with second sample connection department all is provided with hydrogen sulfide detecting instrument for detect the concentration of hydrogen sulfide in the foul smell.
Preferably, a first gas flow meter and a pressure gauge are further arranged between the gas inlet device and the membrane module.
Preferably, a second gas flowmeter and a second valve are further arranged between the bottom of the membrane module and the gas discharge receiving device.
Preferably, a first liquid flow meter is further arranged between the liquid outlet of the membrane module and the absorption liquid tank.
Preferably, a hydraulic pressure meter and a second liquid flow meter are further arranged between the liquid inlet of the membrane module and the absorption liquid tank.
Preferably, a pH detection device and an ORP online monitoring probe are arranged inside the absorption liquid tank.
Preferably, the membrane filaments are polytetrafluoroethylene hollow fiber membranes.
Preferably, the membrane module is a plurality of membrane modules which are connected in parallel.
Preferably, the odor further comprises ammonia gas, methyl mercaptan, methyl sulfide, and the content of hydrogen sulfide is more than 78 vt% relative to the odor.
Preferably, the absorption liquid is a mixed solution of sodium hydroxide and sodium hypochlorite with the pH value of 9-10, and the ORP value is 400mv-600 mv.
The utility model discloses an advantage and positive effect:
the utility model provides a treatment problem of the foul smell of production such as sewage treatment plant, deodorizing device simple structure, convenient operation, environmental protection pollution-free, operating cost and investment are low, can make the absorption liquid absorb and reach the separation deodorization purpose fast odor high efficiency, have reduced the content of microorganism aerosol in giving vent to anger. In addition, the membrane module can be assembled in a modularized way, so that the odor treatment capacity is increased, and the operation is simple and convenient.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
Fig. 1 shows a schematic structural view of a deodorizing device according to embodiment 1 of the present invention.
Description of reference numerals: 1-an air inlet device, 2-an absorption liquid tank, 3-a membrane component, 4-a gas discharge receiving device, 5-a first sampling port, 6-a second sampling port, 7-a fan, 8-a water pump, 9-a first valve, 10-a second valve, 11-a first gas flowmeter, 12-a first liquid flowmeter, 13-a second liquid flowmeter, 14-a second gas flowmeter, 15-a gas pressure meter and 16-a hydraulic pressure meter.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The utility model provides a deodorizing device, this deodorizing device includes:
the device comprises an air inlet device, a first valve, a fan, a membrane assembly and a gas discharge receiving device which are connected in sequence, wherein membrane filaments are arranged in the membrane assembly; the first valve and the fan are used for controlling odor in the air inlet device to enter the membrane module from an air inlet at the top of the membrane module and then to be discharged from an air outlet at the bottom of the membrane module to enter the air discharge receiving device; the odor comprises hydrogen sulfide;
the absorption liquid tank is sequentially connected with the water pump and the liquid inlet below the membrane module, and the water pump is used for conveying absorption liquid in the absorption liquid tank into the membrane module and returning the absorption liquid into the absorption liquid tank from the liquid outlet above the membrane module;
the membrane silk meets the condition that odor can penetrate through membrane holes of the membrane silk and absorption liquid cannot penetrate through the membrane holes;
a first sampling port is arranged between the air inlet device and the membrane component, a second sampling port is arranged between the membrane component and the gas emission receiving device, and hydrogen sulfide detecting instruments are arranged at the first sampling port and the second sampling port and used for detecting the concentration of hydrogen sulfide in odor.
In the above deodorizing device, the absorbing liquid absorbs the odor penetrating from the inside of the membrane filaments outside the membrane filaments of the membrane module.
According to the utility model, the membrane module is a membrane module that is conventionally adopted by the technical personnel in the field. The membrane filaments are preferably polytetrafluoroethylene hollow fiber membranes provided by the institute of chemical and physical research in the university of Chinese academy of sciences.
Preferably, a first gas flow meter and a pressure gauge are further arranged between the gas inlet device and the membrane assembly.
Preferably, a second gas flowmeter and a second valve are arranged between the bottom of the membrane module and the gas discharge receiving device.
Preferably, a first liquid flow meter is arranged between the liquid outlet of the membrane module and the absorption liquid tank.
As a preferred scheme, a hydraulic pressure meter and a second liquid flow meter are also arranged between the liquid inlet of the membrane module and the absorption liquid tank.
Preferably, a pH detection device and an ORP online monitoring probe are arranged in the absorption liquid tank.
Preferably, the number of membrane modules is plural, and the membrane modules are connected in parallel, whereby the odor treatment capacity of the apparatus can be effectively increased.
According to the utility model, the odor may also include ammonia gas, methyl mercaptan, methyl sulfide, and is not limited to the above volatile organic compounds. The content of hydrogen sulfide was > 78 vt% with respect to odor. The odor can be effectively deodorized by the device.
Preferably, the absorption liquid is a mixed solution of sodium hydroxide and sodium hypochlorite with the pH value of 9-10, and the ORP value is 400mv-600 mv.
As the preferred scheme, the air inlet device, the first valve, the membrane module and the gas discharge receiving device are connected through pipelines, the water pump is connected with a liquid inlet below the absorption liquid tank through a pipeline, and the pipeline is made of stainless steel or UPVC.
Preferably, the absorption liquid tank is made of alkali-resistant anti-corrosion plastic.
As the preferred scheme, the fan is the frequency conversion fan, can realize handling tolerance adjustable.
As preferred scheme, first sample connection ball valve is used with the second sample connection to first sample connection, and the ball valve is closed in the idle time, unscrews when taking a sample.
Example 1
This example provides a deodorizing device for an odor gas, which is hydrogen sulfide and is composed of H2S cylinder (concentration 10 ppm).
Fig. 1 shows a schematic structural view of a deodorizing device according to embodiment 1 of the present invention.
As shown in fig. 1, the deodorization device comprises an air inlet device 1, a first valve 9, a fan 7, a membrane module 3 and a gas discharge receiving device 4 which are connected in sequence, wherein membrane filaments are arranged in the membrane module 3; the first valve 9 and the fan 7 are used for controlling odor in the gas inlet device to enter the membrane module 3 from a gas inlet at the top of the membrane module 3 and then to be discharged from a gas outlet at the bottom of the membrane module 3 to enter the gas discharge receiving device 4; the odor comprises hydrogen sulfide;
the absorption liquid tank 2 is made of alkali-resistant anti-corrosion plastic and is sequentially connected with a water pump 8 (a peristaltic pump is used in the embodiment) and a liquid inlet below the membrane module 3, and the water pump 8 is used for conveying absorption liquid in the absorption liquid tank 2 into the membrane module 3 and returning the absorption liquid to the absorption liquid tank 2 from the liquid outlet above the membrane module 3;
the membrane silk meets the condition that odor can pass through the membrane pores of the membrane silk but absorption liquid cannot pass through the membrane pores;
a first sampling port 5 is arranged between the air inlet device 1 and the membrane module 3, a second sampling port 6 is arranged between the membrane module 3 and the gas discharge receiving device 4, and hydrogen sulfide detecting instruments (not shown) are arranged at the first sampling port 5 and the second sampling port 6 respectively and used for detecting the concentration of hydrogen sulfide in odor.
A first gas flow meter 11 and a pressure gauge 15 are further arranged between the gas inlet device 1 and the membrane module 3.
A second gas flow meter 14 and a second valve 10 are also arranged between the bottom of the membrane module 3 and the gas discharge receiving device 4.
A first liquid flow meter 12 is also arranged between the liquid outlet of the membrane module 3 and the absorption liquid tank 2.
A hydraulic gauge 16 and a second liquid flow meter 13 are also arranged between the liquid inlet of the membrane module 3 and the absorption liquid tank 2.
Inside the absorption liquid tank 2, a pH detection device (not shown) and an ORP online monitoring probe (not shown) are provided.
The absorption liquid is a mixed solution of sodium hydroxide and sodium hypochlorite with the pH value of 9-10, and the ORP value is 400mv-600 mv.
Wherein, the pipeline adopts stainless steel material, and fan 7 is the frequency conversion fan, and first sample connection 5 and second sample connection 6 all use the tee bend to connect the ball valve.
Wherein, 126 membrane filaments are arranged in the membrane component, and the absorption liquid is arranged outside the membrane filaments of the membrane component 3 and is opposite to H penetrated from the interior of the membrane filaments2S gas is absorbed, and the membrane filaments meet the requirement of H2S can pass through the membrane pores of the membrane filaments, but the absorption liquid cannot pass through the membrane pores. The membrane filaments are polytetrafluoroethylene hollow fiber membranes, which are provided by the institute of chemico-physical, university of Chinese academy of sciences, and the specific parameters are as follows: the inner diameter of the membrane wire is 0.4mm, the outer diameter is 0.9mm, the length of the membrane wire is 0.5m, and the surface area of the membrane is 0.178038m2。
The deodorization method comprises the following steps: h is to be2The S gas is treated by the above-mentioned deodorizing means. In the operation process, the liquid phase pressure is ensured to be higher than the gas phase pressure, and the bubbling on the liquid phase side is prevented. The operating parameters are as follows: the temperature was room temperature (25 ℃ C.), H2S gas flow rate is 1L/min, absorption liquid flow rate is 0.75L/min, and residence time in the membrane is 0.47S.
After treatment, H2The removal rate of S is stabilized above 99 percent, and the mass transfer coefficient KGIs 1.36X 10-10mol·m-2·s-1·kpa-1It is shown that the above-mentioned manner can make H2S achieves a very ideal removal effect.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (8)
1. A deodorizing device characterized by comprising:
the device comprises an air inlet device, a first valve, a fan, a membrane assembly and a gas discharge receiving device which are connected in sequence, wherein membrane filaments are arranged in the membrane assembly; the first valve and the fan are used for controlling odor in the air inlet device to enter the membrane module from an air inlet at the top of the membrane module and then to be discharged from an air outlet at the bottom of the membrane module to enter the air discharge receiving device; the odor comprises hydrogen sulfide;
the absorption liquid tank is sequentially connected with the water pump and the liquid inlet below the membrane module, and the water pump is used for conveying absorption liquid in the absorption liquid tank into the membrane module and returning the absorption liquid into the absorption liquid tank from the liquid outlet above the membrane module;
the membrane silk meets the condition that odor can penetrate through membrane holes of the membrane silk and absorption liquid cannot penetrate through the membrane holes;
the gas inlet device with be provided with first sample connection between the membrane module, the membrane module with be provided with the second sample connection between the gas emission receiving arrangement, first sample connection with second sample connection department all is provided with hydrogen sulfide detecting instrument for detect the concentration of hydrogen sulfide in the foul smell.
2. The deodorizing apparatus according to claim 1 wherein a first gas flow meter and a pressure gauge are further provided between said gas inlet means and said membrane module.
3. The deodorizing means according to claim 1 wherein a second gas flow meter and a second valve are further provided between the bottom of said membrane module and said gas discharge receiving means.
4. The deodorizing apparatus according to claim 1, wherein a first liquid flow meter is further provided between the liquid outlet of said membrane module and said absorption liquid tank.
5. The deodorization apparatus according to claim 1, wherein a hydraulic pressure gauge and a second liquid flow meter are further disposed between the liquid inlet of the membrane module and the absorption liquid tank.
6. The deodorization apparatus according to claim 1, wherein a pH detection device and an ORP online monitoring probe are provided inside the absorption liquid tank.
7. The deodorizing means of claim 1 wherein said membrane filaments are polytetrafluoroethylene hollow fiber membranes.
8. The deodorizing apparatus according to claim 1, wherein said membrane module is plural and connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020451473.4U CN212166974U (en) | 2020-03-31 | 2020-03-31 | Deodorization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020451473.4U CN212166974U (en) | 2020-03-31 | 2020-03-31 | Deodorization device |
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| Publication Number | Publication Date |
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| CN212166974U true CN212166974U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020451473.4U Active CN212166974U (en) | 2020-03-31 | 2020-03-31 | Deodorization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210195A (en) * | 2021-11-10 | 2022-03-22 | 北京城市排水集团有限责任公司 | Gas-liquid separation membrane biological deodorization equipment and method |
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2020
- 2020-03-31 CN CN202020451473.4U patent/CN212166974U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210195A (en) * | 2021-11-10 | 2022-03-22 | 北京城市排水集团有限责任公司 | Gas-liquid separation membrane biological deodorization equipment and method |
| CN114210195B (en) * | 2021-11-10 | 2024-03-12 | 北京城市排水集团有限责任公司 | Gas-liquid separation membrane biological deodorization equipment and method |
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