CN206778154U - A kind of totally-enclosed, the device of fully-automatic sprinkling gas recovery - Google Patents

Abstract

A fully-closed, fully automatic spray recovery gas device, including at least one recovery module, the recovery module includes a sealed absorption cavity, the absorption cavity is sealed and communicated with the recovery gas inlet pipeline through an angle adjustment valve, the The upper part of the absorption cavity is sealed and connected with a spray device, and the lower part is connected with an absorption liquid pipeline, and the absorption liquid pipeline communicates with the storage tank through a gas-liquid separator, and the nozzle of the spray device is arranged in the absorption cavity. The gas outlet of the angle regulating valve faces the nozzle of the spraying device, the liquid outlet of the gas-liquid separator communicates with the storage tank, the gas outlet of the gas-liquid separator communicates with the gas outlet pipe, and the liquid outlet of the storage tank communicates with the storage tank. The mouth communicates with the spray pipe of the spray device through the absorption liquid circulation pipe. The utility model has the advantages of simple design structure, low production and maintenance costs, strong processing capacity, full sealing and full automation, no secondary pollution to the environment, energy saving and emission reduction.

Description

A fully enclosed, fully automatic spray recovery gas device

technical field

The utility model relates to a high-efficiency gas recovery device, in particular to a fully enclosed and fully automatic spray recovery gas device.

Background technique

The recovery of exhaust gas is an important means of energy conservation, environmental protection and reuse of valuable resources in modern industry. Various exhaust gases can be collected and recycled by absorbents. Although there are many kinds of gas recovery devices commonly used in production at present, most of them are for absorbing a certain kind of special gas, and an air induction device is needed in the process of absorption, such as the one mentioned in the patent publication number CN 205634891U The recovery device for SF6 gas tail gas has a small scope of application and a single application object; a gas absorption and recovery system is mentioned in the patent publication number CN201520124320.8, which includes a blower and an exhaust fan, the operation process is complicated, and the equipment investment is large ;Adopt air induction device and igniter in the recycling device of a kind of reducing furnace burner that mentions in the patent publication number CN204495081 U, this device maintenance cost is high, and recovery efficiency is low, is therefore unfavorable for the production of low value-added products . Therefore, the cost and production efficiency of the existing tail gas recovery devices have not been optimized, and there is an urgent need for a device that is simple and convenient to operate, less investment, good absorption effect, energy saving and emission reduction.

Utility model content

Aiming at the above-mentioned technical problems, the utility model proposes a fully-sealed, energy-saving and emission-reducing fully-sealed, fully-sealed, fully-automated, simple in structure, low in production and maintenance costs, strong in processing capacity, and fully automatic. Fully automatic spray recovery gas device.

A fully-closed, fully automatic spray recovery gas device, including at least one recovery module, the recovery module includes a sealed absorption cavity, the air inlet of the absorption cavity is sealed and installed with an angle regulating valve, and the recovery gas The intake pipe is sealed and connected with the absorption chamber through an angle regulating valve. The upper part of the absorption chamber is sealed with a spray device, and the lower part is sealed with an absorption liquid pipe. The absorption liquid pipe is connected with the liquid inlet of the gas-liquid separator. Sealed connection, the spray device is provided with at least one group of spray heads, the spray heads are arranged in the absorption cavity, the air outlet of the angle regulating valve faces the spray head of the spray device, and the liquid outlet of the gas-liquid separator is connected to the spray head of the spray device. The liquid inlet of the storage tank is sealed and connected, the gas outlet of the gas-liquid separator is sealed and connected with the gas outlet pipe, the liquid outlet of the storage tank is sealed and connected with an absorption liquid circulation pipe, and the absorption liquid circulation pipe is connected with the spray The spray pipe of the device is tightly connected. Since the whole device is sealed and connected, the absorption effect is adjusted by the air pressure difference generated by the cooling effect of the spray absorption liquid on the recovered gas and the absorption effect, and the air pressure difference can be adjusted by adjusting the angle of the gas sprayed by the angle regulating valve. The area and time of contact with the liquid can achieve the purpose of adjusting the absorption effect. The gas-liquid separator not only provides a sealing condition for the liquid phase, but also provides a flow space for the flow of the gas. The gas-liquid separator passes the gas through the gas out The pipe discharges into the next process, while the liquid enters the storage tank below for recycling. The absorption liquid in the storage tank is recycled through the absorption liquid circulation pipe, and the absorption liquid with extremely high concentration or high purity can be obtained, thereby facilitating subsequent recovery and treatment of the absorption liquid.

Further, a plurality of separate containers are arranged in the storage tank, and the liquid outlet of the gas-liquid separator communicates with each container through a pipeline, and each pipeline is provided with a valve, adjacent to the container They are connected through the storage tank regulating valve. The storage tank regulating valve is a valve for switching between containers or controlling the water level. If a container is full, it can be closed first, and the saturated solution inside can be exported, and then opened to increase circulation. Concentrated, which is convenient for subsequent recovery and treatment of the absorption liquid.

Further, the device may include a plurality of recovery modules, and the plurality of recovery modules are connected in series or in parallel, or in parallel and then in series, or in series and then in parallel. The properties of each module can be completely different, the composition for absorbing gases can be acidic, basic and neutral for absorbing gases of different components.

Preferably, the storage tank is provided with a recovery port that communicates with the absorption liquid in the storage tank, and a storage liquid export valve is sealed and installed on the recovery port, and the storage liquid export valve is sealed and connected with the inlet of the absorption liquid recovery treatment device, absorbing The outlet of the liquid recovery treatment device communicates with the absorption liquid replenishment liquid inlet pipe through the replenishment liquid flow regulating valve, and the absorption liquid replenishment liquid inlet pipe communicates with the spray pipe. If the absorption liquid is easy to recycle, use the absorption liquid recovery treatment device to process the absorption and then recycle it. If the absorption liquid is not easy to handle, use the absorption liquid circulation pipe to increase the concentration of the absorption liquid, and then process it after reaching a certain high concentration , thereby saving costs.

Preferably, the gas-liquid separator or the storage tank is provided with an online concentration and acidity detection device, and the online concentration and acidity detection device controls the flow adjustment of the supplementary liquid flow regulating valve and the storage liquid outlet valve through the control device, so that the Monitor the concentration and acidity of the absorption solution at any time.

Preferably, the spray pipe communicates with the spray head of the spray device through a flow regulating valve.

Preferably, the flow regulating valve is a telescopic regulating valve. The device can adjust the replenishing fluid flow regulating valve, the angle regulating valve and the telescopic regulating valve, so that the air blowing device is not needed for gas guidance, and the manufacturing cost and production cost are greatly saved.

Due to the above structure, the device has the following advantages:

1. Each interface of the device is sealed, so that the absorption effect can be adjusted by the air pressure difference generated by the cooling effect and absorption of the gas to be recovered by spraying the absorption liquid, and the air pressure difference can be adjusted by adjusting the angle of the valve to be recovered. The spraying angle can be adjusted to adjust the contact area and time between the gas and the liquid to achieve the purpose of adjusting the absorption effect. Moreover, the device can adjust the supplementary liquid flow regulating valve, angle regulating valve and telescopic regulating valve, thus eliminating the need for a drum The wind device guides the gas, which greatly saves the manufacturing cost and production cost.

2. The recovery module can carry out arbitrary series and parallel combinations through the components or components of the gas to be recovered, until all the components are absorbed, or the impurities are completely removed, or the tail gas meets the requirements of the national emission standards, and the combination process is very simple and convenient .

3. This device can absorb complex tail gas, and finally obtain high-purity monocomponent products. No waste water is generated in the whole process, which can realize energy saving and emission reduction, which is very beneficial to environmental protection.

To sum up, this device is a simplification and modular design of the existing spraying device. In the whole process, no induced draft fan or blower is needed to guide the gas wind direction, and the automatic spraying device of the absorbent passes through the absorption chamber. The negative pressure generated by absorption and cooling causes the gas to directly enter the absorption cavity from the source to conduct heat and mass transfer with the absorbent. The negative pressure can be adjusted and controlled by adjusting the angle at which the gas and liquid enter the cavity. The gas inhaled by the absorption sprayer enters the gas-liquid separator to realize the separation between the gas phase and the liquid phase. The separated absorbent is stored in the storage tank and continues to enter the absorption chamber through the circulation system for cyclic absorption. , until the solution is saturated, it is collected by adjusting the switch of the storage tank, and the absorbent is returned for reuse after treatment. In addition, modules can be added according to the composition and flow rate of the recovered gas until all the gas is recovered. The utility model has the advantages of simple design structure, low production and maintenance costs, strong processing capacity, full sealing and full automation, no secondary pollution to the environment, energy saving and emission reduction.

Description of drawings

A kind of structural representation of Fig. 1 utility model

In the accompanying drawings, 1. Spray pipe, 2. Recycled gas intake pipe, 3. Telescopic regulating valve, 4. Spray device, 5. Absorption cavity, 6. Absorption liquid pipeline, 7. Storage tank, 8. Storage tank Tank regulating valve, 9. Liquid storage outlet valve, 10. Absorption liquid circulation pipe, 11. Recovery gas inlet, 12. Absorption liquid replenishment liquid inlet pipe, 13. Angle adjustment valve, 14. On-line concentration and acidity detection device, 15 1. Supplementary liquid flow regulating valve, 16. Gas outlet pipe, 17. First recovery module, 18. Second recovery module, 19. Third recovery module, 20. Gas-liquid separator, 21. Absorption liquid recovery treatment device.

detailed description

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

As shown in Figure 1, a fully enclosed, fully automatic spray recovery gas device can include multiple recovery modules with the same structure, and the number of recovery modules can be increased or decreased according to specific conditions. In this example, the first recovery module is included 17. The second recovery module 18 and the third recovery module 19, the gas outlet pipe 16 of the previous recovery module communicates with the recovery gas inlet pipe 2 of the latter recovery module,

The overall circulation system of the device is fully sealed. The tail gas enters the absorption cavity 5 from the recovery gas inlet 11 through the recovery gas inlet pipe 2 and the angle regulating valve 13. A spray device 4 is arranged above the absorption cavity 5. The absorption liquid pipeline 6 is connected to the bottom of the absorption cavity 5, and the absorption liquid pipeline 6 communicates with the storage tank 7 through the gas-liquid separator 20, the absorption liquid pipeline 6 and the storage tank 7 are filled with absorption liquid, and the storage tank 7 passes through the absorption liquid circulation pipe 10 communicates with the spray pipe 1 of the spray device 4, and the spray pipe 1 communicates with the spray head of the spray device 4 through the telescopic regulating valve 3, and the spray pipe 1 also communicates with the absorbing liquid replenishing liquid through the replenishing liquid flow regulating valve 15 The liquid inlet pipe 12 is connected, the spray head of the spray device 4 is arranged in the absorption cavity 5, the air outlet of the angle regulating valve 13 faces the spray head of the spray device 4, and the level of the angle regulating valve 13 is higher than the spray head;

The storage tank 7 is provided with a plurality of separate containers, and the liquid outlet of the gas-liquid separator 20 is respectively connected with each container through a pipeline, and each pipeline is provided with a valve, adjacent to the container They are connected through the storage tank regulating valve. The storage tank regulating valve is a valve for switching between containers or controlling the water level. If a container is full, it can be closed first, and the saturated solution inside can be exported, and then opened to increase circulation. thick, to facilitate the subsequent recovery of the absorption liquid, the storage tank 7 is provided with a recovery port connected to the absorption liquid in the storage tank 7, and the recovery port is connected to the inlet of the absorption liquid recovery treatment device 21 through the liquid storage outlet valve 9 , the outlet of the absorbing liquid recovery treatment device 21 communicates with the absorbing liquid replenishing liquid inlet pipe 12 through the replenishing liquid flow regulating valve 15, and the absorbing liquid enters the spraying device 4 from the absorbing liquid pipeline 6 for spraying, and the absorbing liquid that has absorbed the tail gas Enter the gas-liquid separator 20 again through the absorption liquid pipeline 6, and after being detected by the on-line concentration and acidity detection device 14, the unsaturated absorption liquid continues to enter the absorption system from the absorption liquid circulation pipe 10 for circulation, while the saturated absorption liquid passes through the adjustment The storage tank regulating valve 8 leads out from the storage liquid outlet valve 9 .

The on-line concentration and acidity detection device 14 and the supplementary liquid flow regulating valve 15 are linked, and the flow of the storage liquid outlet valve 9 and the supplementary liquid flow regulating valve 15 is adjusted according to the signal fed back by the online concentration and acidity detection device 14 to realize full Automatic control; the angle regulating valve 13 can adjust the angle at which the gas enters the absorption chamber 5, and the telescopic regulating valve 3 can adjust the flow rate of the liquid entering the absorption chamber 5.

The above-mentioned embodiment is an illustration of the utility model, not a limitation of the utility model, and any structure after simple transformation of the utility model belongs to the protection scope of the utility model.

Claims (7)

1. A fully enclosed, fully automatic device for spraying and recovering gas, comprising at least one recovery module, characterized in that: the recovery module comprises a sealed absorption chamber (5), and the inlet of the absorption chamber (5) An angle regulating valve (13) is sealed and installed on the air port, and the recovery gas inlet pipe (2) is sealed and connected with the absorption chamber (5) through the angle regulating valve (13), and the upper part of the absorption chamber (5) is sealed and connected There is a spraying device (4), and an absorption liquid pipeline (6) is sealingly connected to the lower part, and the absorption liquid pipeline (6) is sealed and connected to the liquid inlet of the gas-liquid separator (20), and the spraying device (4) At least one group of spray heads is provided, the spray heads are arranged in the absorption chamber (5), the air outlet of the angle regulating valve (13) faces the spray heads of the spraying device (4), and the gas-liquid separator (20) The liquid outlet of the storage tank (7) is sealed and connected with the liquid inlet, the gas outlet of the gas-liquid separator (20) is sealed and connected with the gas outlet pipe (16), and the liquid outlet of the storage tank (7) is An absorption liquid circulation pipe (10) is sealed and connected, and the absorption liquid circulation pipe (10) is sealed and connected with the spray pipe (1) of the spray device (4). 2. The fully-closed and fully automatic spray recovery gas device according to claim 1, characterized in that: the storage tank (7) is provided with a plurality of separate containers, and the gas-liquid separator (20) The liquid outlets are respectively sealed and connected to each container through a pipeline, each pipeline is provided with a valve, and the adjacent containers are communicated through a storage tank regulating valve (8). 3. The fully enclosed and fully automatic spray recovery gas device according to claim 2, characterized in that it includes multiple recovery modules, and the multiple recovery modules are connected in series or in parallel or connected in parallel and then connected in series Or multiple in series and then in parallel. 4. The fully-sealed and fully automatic spray recovery gas device according to any one of claims 1 to 3, characterized in that: the storage tank (7) is provided with a recovery tank (7) connected to the absorption liquid in the storage tank (7). The outlet of the recovery port is sealed with a liquid storage export valve (9), and the liquid storage export valve (9) is connected to the inlet of the absorption liquid recovery treatment device (21) in a sealed manner, and the outlet of the absorption liquid recovery treatment device (21) is The replenishing liquid flow regulating valve (15) communicates with the absorbing liquid replenishing liquid inlet pipe (12), and the absorbing liquid replenishing liquid inlet pipe (12) communicates with the spray pipe (1). 5. The fully-sealed and fully automatic spray recovery gas device according to claim 4, characterized in that: an online concentration and acidity detection device ( 14), the on-line concentration and acidity detection device (14) controls the flow of the replenishment liquid flow regulating valve (15) and the storage liquid outlet valve (9) through the control device. 6. The fully-closed and fully automatic spray recovery gas device according to claim 5, characterized in that: the spray pipe (1) communicates with the spray head of the spray device (4) through a flow regulating valve. 7. The fully enclosed and fully automatic spray recovery gas device according to claim 6, characterized in that: the flow regulating valve is a telescopic regulating valve (3).