CN210934438U - Tail gas absorption tower - Google Patents
Tail gas absorption tower Download PDFInfo
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- CN210934438U CN210934438U CN201921787733.9U CN201921787733U CN210934438U CN 210934438 U CN210934438 U CN 210934438U CN 201921787733 U CN201921787733 U CN 201921787733U CN 210934438 U CN210934438 U CN 210934438U
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- tail gas
- tower body
- spraying
- absorption tower
- back flow
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Abstract
The utility model relates to a tail gas absorption tower, which comprises a tower body, a gas inlet device, a tail gas treatment device and a detection device, wherein the gas inlet device comprises a gas inlet, a flow slowing device and a pressure control valve; the tail gas treatment device comprises a gas guide pipe, a rising baffle plate and a spraying device; detection device includes output tube, tail gas discharge pipe, terminal detection device, back flow, output tube and back flow intercommunication, tail gas discharge pipe set up in delivery outlet and back flow intercommunication department, are the T type, the back flow pipe set up along tower body lower part outer wall to meet with the tail gas passageway in the tower body bottom. The utility model discloses the structure is ingenious, and reasonable in design guarantees mass transfer efficiency, and input process is safe controllable, and is accurate pollution-free, is applicable to industrial production.
Description
Technical Field
The utility model belongs to the chemical production device field, concretely relates to tail gas absorption tower.
Background
In the chemical industry production process, the tail gas absorption is mostly directly introduced into the absorption tower, the tail gas cannot uniformly enter due to the fact that the speed is too high when the tail gas enters the reaction tower, the emission of the tail gas is different along with different reaction time periods, when the emission of the tail gas is large, the tail gas absorption tower cannot absorb timely, the recovery rate of utilizable substances in the tail gas is low, and the problem of environmental pollution is easily caused. In addition, when a large amount of tail gas produced by reaction enters the tail gas absorption tower, overpressure and overtemperature phenomena may occur locally, so that safety accidents are easily caused. In the actual production process, the tail gas is directly introduced into the reaction tower for reabsorption after primary absorption, and cannot be effectively separated from the first input tail gas, so that the components to be absorbed in the tail gas are not uniformly distributed, and the secondary recovery rate of the tail gas is low; in addition, the end point detection device is directly connected to an output port, gas is rapidly discharged under the action of large pressure, the alarm device cannot be triggered, the safety of the output gas cannot be accurately measured, and the personal safety and the environmental pollution of workers can be seriously threatened. The above problems make the efficient and safe treatment of tail gas in the production process of pesticide an urgent problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of unfixed tail gas discharge amount, low recovery rate of recyclable components in tail gas, non-conformity with environmental protection requirements and the like in the prior art, and the utility model provides a tail gas absorption tower which realizes the technical effect of stable input of tail gas by arranging a flow slowing device at an air inlet, and meanwhile, the air inlet is provided with a pressure control valve which can effectively control the pressure in an air inlet pipeline and ensure that the pressure is in a safe value range; and replace ordinary shower nozzle for pressure shower nozzle, under non-operating condition, pressure shower nozzle is in the closed state, has reduced the corruption of remaining tail gas in the absorption tower to the shower nozzle. Through increasing slow flow device, endpoint detection device, the content of harmful substance in the accurate detection tail gas accomplishes tail gas exhaust's safety ring, and to reflux unit's improvement, can let in the complete tail gas of unreacted from absorption tower body bottom again, the back flow is equipped with and cuts apart the accurate absorption of the possible secondary of guide plate, thereby the absorptive power of increase tail gas reaches the 100% absorption of tail gas.
The utility model discloses a realize above-mentioned technical purpose, provide following technical scheme: a tail gas absorption tower is characterized by comprising a tower body, a gas inlet device, a tail gas treatment device and a detection device, wherein the gas inlet device comprises a gas inlet, a flow slowing device and a pressure control valve;
the tail gas treatment device comprises an air guide pipe, a rising baffle plate and a spraying device, the air guide pipe is arranged along the lower part of the tower body and is communicated with the air inlet device, the spiral rising baffle plate is arranged between the upper part of the tower body and the lower part of the tower body, and the spraying device is positioned at the top of the tower body;
detection device includes output tube, tail gas discharge pipe, terminal detection device, back flow, output tube and back flow intercommunication, tail gas discharge pipe set up in delivery outlet and back flow intercommunication department, are the T type, the back flow pipe set up along tower body lower part outer wall to meet with the tail gas passageway in the tower body bottom.
Further, the flow slowing device is a honeycomb flow slowing device;
furthermore, an aperture regulating valve is arranged inside the honeycomb flow damper;
furthermore, the spraying device comprises a spraying bottom plate and a spraying cover plate, and the spraying cover plate is arranged below the spraying bottom plate;
furthermore, the spraying bottom plate is a pressure nozzle;
furthermore, the spraying cover plate is a vacuum spraying cover plate;
furthermore, a flow slowing blocker is arranged at the joint of the output pipe and the tower body;
further, the terminal detection device comprises a tail gas detection device and an alarm device;
furthermore, a partition guide plate is arranged in the return pipe.
Owing to adopted above technique, the utility model discloses compare with prior art, it is showing the advantage and is:
1) the gas inlet device is arranged, so that the input amount of the tail gas is relatively stable in the process of entering the absorption tower, and the recovery efficiency of the tail gas can be improved;
2) in the process that the tail gas enters the absorption tower, the pressure of a tail gas inlet can be effectively controlled by controlling the pressure valve, the process that the tail gas enters the absorption tower is safe and reliable, and the personal safety of workers and the environmental safety of a production field can be ensured;
3) by arranging the pressure nozzle and the vacuum spraying cover plate, the nozzle can be effectively protected from being polluted by tail gas in a non-working state;
4) through set up terminal detection device, alarm device on the back flow, whether can more accurate detection exhaust up to standard, reflux unit's improvement in addition can get into substandard gas again from the tower body low side, cuts apart the volume that the guide plate can control tail gas entering tower body to guarantee the abundant reaction of tail gas.
Drawings
FIG. 1 is a schematic view of the whole structure of the tail gas absorption tower of the present invention;
FIG. 2 is a schematic view of a partial structure of an air inlet device of the tail gas absorption tower device according to the present invention;
FIG. 3 is a schematic view of a partial structure of a spray bottom plate of the tail gas absorption tower apparatus of the present invention;
FIG. 4 is a schematic view of a partial structure of a split diversion baffle device of the tail gas absorption tower device of the present invention;
fig. 5 is a schematic view of a partial structure of a terminal detection device of the tail gas absorption tower device of the present invention;
in the figure: 1-tower body, 2-air inlet, 3-slow flow device, 4-air pipe, 5-air pipe, 6-outlet, 7-rising baffle, 8-spraying cover plate, 9-input pipe, 10-one-way wind shield, 11-spraying bottom plate, 12-outlet, 13-output pipe, 14-terminal detection device, 15-reflux valve, 16-dividing guide plate, 17-spraying base, 18-reflux pipe, 19-motor, 20-ear seat, 21-output control valve, 22-pressure relief device, 23-discharge outlet, 24-gasket, 25-pressure control valve, 26-jacket, 27-spraying hole, 28-baffle, 29-baffle plate, 30-rotating shaft and 31-slow flow baffle plate, 32-one-way air outlet plate, 33-alarm and 34-air inlet guide plate.
Detailed Description
In order to make the technical solution and advantages of the present invention more clearly understood, the present invention will now be described in further detail with reference to the accompanying drawings.
Example 1A Tail gas absorption column
The tail gas absorption tower device shown in the figures 1-5 comprises a tower body 1, an air inlet device, a tail gas treatment device and a detection device, wherein the air inlet device comprises an air inlet 2, a slow flow device 3 and a pressure control valve 25, the air inlet 2 is provided with an air inlet guide plate 34, the pressure control valve 25 is connected with the slow flow device 3 and is communicated with the tail gas treatment device through an air conveying pipe 4 on the side wall of the lower end of the tower body 1, the outer side of the slow flow device is provided with a jacket 26, and the slow flow device is specifically a honeycomb slow flow device. The lower part of the tower body 1 is provided with a guide outlet 6 and an output control valve 21, the middle part is provided with an ear seat 20, a one-way wind shield 10 is arranged between a pressure control valve 25 and the tower body 1, the circulation rate of the tail gas is controlled by arranging an air inlet device, particularly a slow flow device and the pressure control valve, the reaction speed of the reaction tower is improved, the stable input of the tail gas is realized, and the advantages of high-efficiency reaction, safety and environmental protection are achieved;
the tail gas treatment device comprises a gas guide pipe 5, an ascending baffle 7 and a spraying device, wherein the spraying device comprises a spraying bottom plate 11 and a spraying cover plate 8, the spraying cover plate is arranged below the spraying bottom plate, the spraying bottom plate 11 comprises a gasket 24 and a spraying base 17, and the spraying base 17 is connected with an input pipeline 9 and is provided with a motor 19; the spraying bottom plate 11 is provided with spraying holes 27 which are opened by liquid pressure in a working state; in a non-working state, the spraying holes 27 are lifted and closed, the spraying cover plate 8 and the spraying base 17 can form a closed vacuum state to carry out secondary protection on the spraying holes 27, so that the corrosion of residual tail gas in the reaction tower on the spraying bottom plate 11 is avoided, and the cleaning work is reduced; the ascending baffle 7 can guide gas to ascend spirally without obstacles, so that the tail gas stroke is increased, the tail gas stroke is smoother, and the tail gas absorption rate is improved.
Detection device includes output tube 13, terminal detection device 14, back flow 18, set up slow flow baffler 31 and one-way play tuber plate 32 at delivery outlet 12, two boards form an independent space, and set up alarm 33 in inside, terminal detection device 14, let out depressor 22, whether reach standard tentatively detect specific gas content in the output gas, accessible is adjusted spray set's spraying rate under the substandard state and is improved tail gas recovery efficiency, open return valve 15 in addition, tail gas passes through back flow 18 and gets into the tower body and carry out the secondary absorption. Output tube 13 and back flow 18 intercommunication, discharge port 23 sets up in output tube 13 and back flow 18 intercommunication department, is the T type, back flow 18 sets up along tower body lower part outer wall, and meet with export 6 in the tower body bottom, back flow 18 and 6 handing-over departments of air duct are provided with and cut apart guide plate 16, cut apart guide plate 16 and include baffle 28, baffler 29, axis of rotation 30, the baffle is for being the L template of right angle, the baffler is located the upper portion and the lower part of baffle respectively, it has three kinds of operating condition to cut apart guide plate 16: in a fully open state, the backflow gas and the primary tail gas enter the tower body simultaneously; half open state a: the primary tail gas enters the tower body independently; half open state b: the reflux gas enters the tower body separately.
The above-mentioned embodiments are merely examples of the best mode of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the following claims, and equivalent alternatives including technical features in the technical solutions described in the claims are also within the protection scope of the present invention.
Claims (9)
1. A tail gas absorption tower is characterized by comprising a tower body, a gas inlet device, a tail gas treatment device and a detection device, wherein the gas inlet device comprises a gas inlet, a flow slowing device and a pressure control valve;
the tail gas treatment device comprises an air guide pipe, a rising baffle plate and a spraying device, the air guide pipe is arranged along the lower part of the tower body and is communicated with the air inlet device, the spiral rising baffle plate is arranged between the upper part of the tower body and the lower part of the tower body, and the spraying device is positioned at the top of the tower body;
detection device includes output tube, tail gas discharge pipe, terminal detection device, back flow, output tube and back flow intercommunication, tail gas discharge pipe set up in delivery outlet and back flow intercommunication department, are the T type, the back flow pipe set up along tower body lower part outer wall to meet with the tail gas passageway in the tower body bottom.
2. The tail gas absorption tower of claim 1, wherein the flow slowing device is a honeycomb flow slowing device.
3. The tail gas absorption tower of claim 2, wherein the honeycomb flow damper is internally provided with a hole diameter adjusting valve.
4. The exhaust gas absorption tower according to claim 1, wherein the spraying device comprises a spraying bottom plate and a spraying cover plate, and the spraying cover plate is disposed below the spraying bottom plate.
5. The exhaust gas absorption tower according to claim 4, wherein the spray base is a pressure nozzle.
6. The exhaust gas absorption tower according to claim 4, wherein the spray cover plate is a vacuum spray cover plate.
7. The tail gas absorption tower of claim 1, wherein a flow slowing blocker is arranged at the joint of the output pipe and the tower body.
8. The exhaust gas absorption tower according to claim 1, wherein the end detection device comprises an exhaust gas detection device and an alarm device.
9. The exhaust gas absorbing tower according to claim 1, wherein a dividing baffle is provided in the return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921787733.9U CN210934438U (en) | 2019-10-23 | 2019-10-23 | Tail gas absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921787733.9U CN210934438U (en) | 2019-10-23 | 2019-10-23 | Tail gas absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210934438U true CN210934438U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921787733.9U Active CN210934438U (en) | 2019-10-23 | 2019-10-23 | Tail gas absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210934438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113952818A (en) * | 2021-10-22 | 2022-01-21 | 骆英 | Paint spraying waste gas treatment device |
-
2019
- 2019-10-23 CN CN201921787733.9U patent/CN210934438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113952818A (en) * | 2021-10-22 | 2022-01-21 | 骆英 | Paint spraying waste gas treatment device |
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