Exhaust scrubber

Abstract

The utility model discloses an exhaust scrubber which comprises a lower washing pool body, one side of the bottom of the lower washing pool body is connected with an air inlet pipe, one end of the air inlet pipe is provided with an aeration disc, the upper side of the lower washing pool body is provided with a spraying chamber, the inner wall of the spraying chamber is provided with a spraying pipe, and the inner side of the spraying pipe is provided with a plurality of nozzles. One side of the bottom of the lower washing tank body is connected with the air inlet pipe and the aeration disc, one end of the spraying pipe is communicated with the bottom of the lower washing tank body through a water conveying pipe and a water pump, an exhaust port is formed in the upper end of the spraying chamber, and an exhaust fan and a demister are arranged in the exhaust port. Meanwhile, waste gas obtained after soaking and washing is subjected to spraying and washing through the spraying chamber, and the two modes act front and back, so that the thoroughness of exhaust and washing is high, and the washing efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust gas washing, in particular to an exhaust gas scrubber. Background Art

[0002] Chemical industry is the abbreviation of chemical process, chemical industry, chemical engineering, etc. Any technology that uses chemical methods to change the composition and structure of substances or synthesize new substances belongs to chemical production technology, that is, chemical process. The resulting products are called chemicals or chemical products. In the process of chemical production of tungsten hexafluoride, waste gas will be generated, which requires the use of exhaust scrubbers to wash it. During the use of exhaust scrubbers for tungsten hexafluoride chemical industry, the sprayed water mist is not easy to fully contact with the waste gas, which reduces the washing effect and is not easy to achieve better practicality.

[0003] A chemical exhaust scrubber with application number 202322028807.3 in the prior art includes a washing cylinder, an air inlet pipe is fixedly installed on the outer bottom end of the washing cylinder, and an exhaust valve is fixedly installed on the top of the washing cylinder. During the use of the chemical exhaust scrubber, the sprayed water mist can be easily in full contact with the exhaust gas, thereby improving the washing effect and achieving better practicality. However, only spray washing is used to prevent washing, which makes the exhaust washing less thorough and the washing efficiency lower. Utility Model Content

[0004] The utility model aims to provide an exhaust gas scrubber to solve the problem that only spraying is used to wash the exhaust gas in the prior art, resulting in poor exhaust gas washing thoroughness and low washing efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust scrubber, comprising a washing lower tank body, an air inlet pipe is connected to one side of the bottom of the washing lower tank body, an aeration plate is installed at one end of the air inlet pipe, a spray chamber is provided on the upper side of the washing lower tank body, a spray pipe is provided on the inner wall of the spray chamber, and a plurality of nozzles are provided on the inner side of the spray pipe, one end of the spray pipe is connected to the bottom of the washing lower tank body through a water pipe and a water pump, an exhaust port is installed on the upper end of the spray chamber, and an exhaust fan and a demister are provided inside the exhaust port.

[0006] Furthermore, the lower washing tank body and the spray chamber are both configured as circular tank bodies, and the outer diameter of the spray chamber is smaller than the outer diameter of the lower washing tank body. A PLC control cabinet is provided outside the spray chamber, and a perspective window is provided outside the lower washing tank body.

[0007] Furthermore, the spray pipe adopts a spiral pipe, and a plurality of spray heads are evenly distributed inside the spray pipe.

[0008] Furthermore, the inner side of the spray pipe is arranged close to the inner wall of the spray chamber, and the spray chamber and the spray pipe are sealed by a sealant, and a gas passage is provided in the spray pipe.

[0009] Furthermore, a drainage port is provided on one side of the bottom of the lower washing tank body, a water injection port is provided on one side of the upper end of the lower washing tank body, and a sealing cover is provided on one end of the drainage port.

[0010] Furthermore, the water pump is fixedly arranged on the outer wall of the washing tank body through a machine base, and a filter is provided at a water inlet end of the water pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model connects an air inlet pipe and an aeration plate to one side of the bottom of the washing tank, so that the exhaust gas can be immersed in the washing tank for full washing. At the same time, the exhaust gas after immersion washing is sprayed and washed through the spray chamber. The two methods act in tandem, so that the exhaust washing is more thorough and the washing efficiency is higher.

[0013] 2. The utility model also adopts a spiral pipe through the spray pipe, and a plurality of nozzles are evenly distributed on the inner side of the spray pipe, so that the spray area of ​​the spray pipe is wide and the spray uniformity is strong, which is conducive to improving the efficiency of spray washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is the main view of the overall internal structure of the utility model;

[0017] Figure 3 This is a top view of the spray pipe structure of the utility model.

[0018] In the figure: 1. Washing tank body; 2. Spray chamber; 3. Exhaust port; 4. Defogger; 5. Exhaust fan; 6. Water inlet; 7. Spray pipe; 8. Water pipe; 9. Water pump; 10. Filter; 11. Air inlet pipe; 12. Aeration plate; 13. Perspective window; 14. Drain port; 15. Sealing cover; 16. Spray nozzle; 17. PLC control cabinet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , Figure 2 , Figure 3 In the embodiment of the utility model, an exhaust scrubber includes a washing lower tank body 1, and an air inlet pipe 11 is connected to one side of the bottom of the washing lower tank body 1, so that the exhaust gas can be immersed in the washing lower tank body 1 for full washing, and an aeration plate 12 is installed at one end of the air inlet pipe 11, which can aerate the exhaust gas to facilitate full contact between the exhaust gas and the water body. An exhaust port 3 is installed at the upper end of the spray chamber 2, and an exhaust fan 5 and a demister 4 are arranged inside the exhaust port 3. The exhaust fan 5 is used to provide exhaust power, and the demister 4 is used to remove water mist in the exhaust gas. The washing lower tank body 1 and the spray chamber 2 are provided with an exhaust port 3. The shower chambers 2 are all configured as circular tank bodies, and the outer diameter of the spray chamber 2 is smaller than the outer diameter of the lower washing tank body 1. A PLC control cabinet 17 is provided on the outside of the spray chamber 2, and a perspective window 13 is provided on the outside of the lower washing tank body 1 to facilitate observation of the water level inside the lower washing tank body 1. When the water level is low, a water inlet 6 is provided on one side of the upper end of the lower washing tank body 1 to replenish washing water into the lower washing tank body 1. A drain outlet 14 is provided on one side of the bottom of the lower washing tank body 1, and a sealing cover 15 is provided at one end of the drain outlet 14 to facilitate discharge and replacement of the water inside the lower washing tank body 1.

[0021] like Figure 2 and Figure 3 As shown, in order to improve the efficiency of spray washing, a spray chamber 2 is provided on the upper side of the washing lower tank body 1, a spray pipe 7 is provided on the inner wall of the spray chamber 2, and a plurality of nozzles 16 are provided on the inner side of the spray pipe 7, one end of the spray pipe 7 is connected with the bottom of the washing lower tank body 1 through a water pipe 8 and a water pump 9, the spray pipe 7 adopts a spiral pipe, and a plurality of nozzles 16 are evenly distributed on the inner side of the spray pipe 7, so that the spray area of ​​the spray pipe 7 is wide and the spray uniformity is strong, which is beneficial to improving the efficiency of spray washing, and the inner side of the spray pipe 7 is arranged close to the inner wall of the spray chamber 2, and the spray chamber 2 and the spray pipe 7 are sealed by a sealant, and a gas channel is provided in the spray pipe 7, so that the exhaust gas can be sprayed through the channel inside the spray pipe 7.

[0022] like Figure 2 As shown, in order to realize the recycling of water, a water pump 9 is fixedly arranged on the outer wall of the washing tank body 1 through a machine base, and a filter screen 10 is provided at a water inlet end of a water pipe 8 for filtering impurities in the water inside the washing tank body 1, so as to facilitate the recycling of water.

[0023] The working principle and use process of the utility model are as follows: when in use, the exhaust gas is introduced into the bottom of the washing lower pool body 1 through the air inlet pipe 11, so that the exhaust gas can be immersed in the washing treatment, and then the exhaust gas after immersion washing passes through the spray chamber 2, and is spray washed through the spray pipe 7 provided in the spray chamber 2, and the washed exhaust gas is discharged through the demister 4 and the exhaust fan 5 in the exhaust port 3. The two methods act in a front-and-back manner, so that the exhaust washing is more thorough and the washing efficiency is higher.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An exhaust gas scrubber, comprising a scrubbing lower tank (1), characterized in that: An air inlet pipe (11) is connected to one side of the bottom of the lower washing tank body (1), and an aeration plate (12) is installed at one end of the air inlet pipe (11). A spray chamber (2) is provided on the upper side of the lower washing tank body (1). A spray pipe (7) is provided on the inner wall of the spray chamber (2), and a plurality of spray heads (16) are provided on the inner side of the spray pipe (7). One end of the spray pipe (7) is connected to the bottom of the lower washing tank body (1) through a water pipe (8) and a water pump (9). An exhaust port (3) is installed at the upper end of the spray chamber (2), and an exhaust fan (5) and a demister (4) are provided inside the exhaust port (3).

2. An exhaust scrubber according to claim 1, characterized in that: The lower washing tank body (1) and the spray chamber (2) are both configured as circular tank bodies, and the outer diameter of the spray chamber (2) is smaller than the outer diameter of the lower washing tank body (1).

3. An exhaust scrubber according to claim 1, characterized in that: The spray pipe (7) is a spiral pipe, and a plurality of spray heads (16) are evenly distributed inside the spray pipe (7).

4. An exhaust gas scrubber according to claim 3, characterized in that: The inner side of the spray pipe (7) is arranged in close contact with the inner wall of the spray chamber (2), and the spray chamber (2) and the spray pipe (7) are sealed by means of a sealant. A gas passage is provided in the spray pipe (7).

5. An exhaust scrubber according to claim 2, characterized in that: A drainage port (14) is provided on one side of the bottom of the lower washing tank body (1), a water injection port (6) is provided on one side of the upper end of the lower washing tank body (1), and a sealing cover (15) is provided on one end of the drainage port (14).

6. An exhaust gas scrubber according to claim 1, characterized in that: The water pump (9) is fixedly mounted on the outer wall of the washing tank body (1) via a machine base, and a filter screen (10) is provided at a water inlet end of the water delivery pipe (8).

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