CN219848877U - Spray waste gas treatment and absorption device - Google Patents
Spray waste gas treatment and absorption device Download PDFInfo
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- CN219848877U CN219848877U CN202320805483.7U CN202320805483U CN219848877U CN 219848877 U CN219848877 U CN 219848877U CN 202320805483 U CN202320805483 U CN 202320805483U CN 219848877 U CN219848877 U CN 219848877U
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- absorption tower
- pipe
- way valve
- absorption
- gas treatment
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 69
- 239000007921 spray Substances 0.000 title claims abstract description 19
- 239000002912 waste gas Substances 0.000 title abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 abstract description 40
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model provides a spray waste gas treatment and absorption device, which comprises a first absorption tower, a second absorption tower, a blower and a chimney, wherein the first absorption tower is connected with the blower; a first air inlet pipe is arranged at one side of the first absorption tower, and a first air outlet pipe is arranged at the top of the first absorption tower; a second air inlet pipe is arranged at one side of the second absorption tower, and a second air outlet pipe is arranged at the top of the second absorption tower; the first exhaust pipe is connected with a gas detection assembly, the gas detection assembly is connected with a three-way valve, one output end of the three-way valve is connected with the second air inlet pipe, the other output end of the three-way valve is connected with the air blower through a connecting pipe, the second exhaust pipe is connected with the air blower, and the air blower is communicated with the chimney; the spray exhaust gas treatment and absorption device can be adjusted according to the content of the exhaust gas in the exhaust gas after primary absorption by the first absorption tower, so that the energy consumption waste is reduced, and the treatment efficiency is ensured.
Description
Technical Field
The utility model belongs to the technical field of waste gas treatment equipment, and particularly relates to a spraying waste gas treatment absorption device.
Background
Acid-base waste gas is generated in the production process of a chemical plant, and the acid-base waste gas needs to be absorbed before being discharged, and is usually treated by an absorption tower at first, and when the concentration of the acid-base waste gas is too high, the acid-base waste gas may also contain a certain amount of acid-base substances due to non-uniform reaction.
In the prior art, for example, chinese patent publication No. CN216223745U discloses a multistage environmental protection absorption treatment device for acid-base waste gas, which adopts a blower communicated with a chimney to generate suction force to suck the acid-base waste gas generated by the reaction of materials in a reaction tank into a first absorption tower, the acid-base waste gas is fully neutralized and reacted and absorbed by absorption liquid in the first absorption tower, then discharged into a second absorption tower for dilution and absorption again, and discharged after removing peculiar smell, thereby achieving the effect of thoroughly removing harmful substances in the acid-base waste gas. And when the concentration of the waste gas is not required to be absorbed twice, the waste of energy consumption and the treatment absorption efficiency are caused.
Therefore, it is necessary to design a spray exhaust gas treatment and absorption device which can be adjusted according to the condition of the exhaust gas after primary absorption, reduces energy consumption waste and ensures treatment efficiency to solve the technical problems faced at present.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the spraying waste gas treatment and absorption device which can be adjusted according to the condition of the tail gas after primary absorption, reduce the energy consumption waste and ensure the treatment efficiency.
The technical scheme of the utility model is as follows: the spray exhaust gas treatment and absorption device comprises a first absorption tower, a second absorption tower, a blower and a chimney; a first air inlet pipe is arranged at one side of the first absorption tower, and a first air outlet pipe is arranged at the top of the first absorption tower; a second air inlet pipe is arranged at one side of the second absorption tower, and a second air outlet pipe is arranged at the top of the second absorption tower; the gas detection assembly is connected to the first exhaust pipe, the three-way valve is connected to the gas detection assembly, one output end of the three-way valve is connected to the second air inlet pipe, the other output end of the three-way valve is connected to the blower through the connecting pipe, the second exhaust pipe is connected to the blower, and the blower is communicated with the chimney.
The gas detection assembly is provided with a detection tube, a detection probe is arranged in the detection tube and is connected with a control module through an AD conversion module, and the output end of the control module is connected with an intermediate relay for controlling the action of the three-way valve.
The flange plates are arranged at the two ends of the detection tube, and the flange plates at the two ends of the detection tube are detachably and fixedly connected with the first exhaust pipe and the three-way valve respectively.
The control module is a PLC controller.
The spray waste gas treatment and absorption device further comprises a three-way joint and a third exhaust pipe, wherein the second exhaust pipe and the connecting pipe are respectively connected with two input ends of the three-way joint, and the output end of the three-way joint is connected with the third exhaust pipe.
And the connecting pipe is provided with a one-way valve.
And the second exhaust pipe is connected with a stop valve.
The utility model has the beneficial effects that: according to the spray exhaust gas treatment and absorption device, the exhaust gas content in the exhaust gas after primary absorption through the first absorption tower can be adjusted, the three-way valve is used for switching the first exhaust pipe to be directly communicated with the air blower when the emission standard is met, the exhaust gas is discharged through the chimney, the three-way valve is used for switching the first exhaust pipe to be communicated with the second absorption tower when the emission standard is not met, secondary absorption is carried out, the exhaust gas is discharged outwards through the chimney, the energy consumption is reduced, and the treatment efficiency is ensured.
Drawings
FIG. 1 is a schematic diagram of a spray exhaust gas treatment and absorption device according to the present utility model.
FIG. 2 is a schematic diagram of a gas detection module according to the present utility model.
Fig. 3 is a schematic diagram of a spray exhaust gas treatment and absorption device according to the present utility model.
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the utility model, its application, or uses. The present utility model may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.
The terms "first," "second," and the like, as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
As shown in fig. 1, the spray exhaust gas treatment and absorption device comprises a first absorption tower 1, a second absorption tower 2, a blower 3 and a chimney 4; a first air inlet pipe 11 is arranged at one side of the first absorption tower 1, and a first air outlet pipe 12 is arranged at the top of the first absorption tower 1; a second air inlet pipe 21 is arranged at one side of the second absorption tower 2, and a second air outlet pipe 22 is arranged at the top of the second absorption tower 2; the first exhaust pipe 12 is connected with the gas detection assembly 5, the gas detection assembly 5 is connected with the three-way valve 6, the input end of the three-way valve 6 is communicated with the first exhaust pipe 12, one output end of the three-way valve 6 is connected with the second air inlet pipe 21, the other output end of the three-way valve 6 is connected with the air blower 3 through the connecting pipe 8, the three-way valve 6 is used for switching the first exhaust pipe 12 to be communicated with the air blower 3 or the second absorption tower 2, the second exhaust pipe 22 is connected with the air blower 3, and the air blower 3 is communicated with the chimney 4; in this embodiment, the blower 3, which is connected to the chimney 4, generates suction force to suck the acid-base waste gas into the first absorption tower 1 through the first air inlet pipe 11, and then discharges the acid-base waste gas outwards through the first air outlet pipe 12 after performing primary absorption treatment, the gas detection component 5 detects the target waste gas concentration in the discharged gas, when the discharge standard is met, the three-way valve switches the first air outlet pipe 12 to be directly connected with the blower 3, and discharges the waste gas through the chimney, when the discharge standard is not met, the three-way valve 6 switches the first air outlet pipe 12 to be connected with the second absorption tower 2, and then discharges the waste gas outwards through the chimney 4 after performing secondary absorption.
In some embodiments, as a specific implementation manner of the gas detection assembly 5, as shown in fig. 2 and 3, the gas detection assembly 5 has a detection tube 51, a detection probe 52 is disposed inside the detection tube 51, the detection probe 52 is connected with a control module 91 through an AD conversion module 92, and an output end of the control module 91 is connected with an intermediate relay 93 for controlling the action of the three-way valve 6; the detection probe 52 is used for detecting the target gas concentration in the detection tube 51, converting the target gas concentration by the AD conversion module 92 and sending the target gas concentration to the control module 91, wherein a target gas threshold is arranged in the control module 91; when the detection value is greater than or equal to the gas threshold value, the three-way valve 6 switches the communication between the first exhaust pipe 12 and the second absorption tower 2 to perform secondary absorption; when the detection value is smaller than the gas threshold value, the three-way valve 6 switches the first exhaust pipe 12 to be communicated with the blower 3; it should be noted that the target gas may be one or more of a variety of gases absorbed by the absorber, and the corresponding detection probe 52 is a gas detection probe that is matched with the target gas.
In some embodiments, flanges 53 are arranged at two ends of the detection tube 51, and the flanges 53 at two ends of the detection tube 51 are detachably and fixedly connected with the first exhaust pipe 12 and the three-way valve 6 respectively; the detection tube 51 is detachable, and the gas detection assembly 5 is convenient to detach for maintenance and replacement.
In some embodiments, the control module 91 is a PLC controller; specifically, the control module 91 is a Siemens S7-200 PLC controller.
In some embodiments, as a connection mode between the connection pipe 8, the second exhaust pipe 22 and the third exhaust pipe 31, the spray exhaust gas treatment absorption device further comprises a three-way joint 7 and the third exhaust pipe 31, wherein the second exhaust pipe 22 and the connection pipe 8 are respectively connected with two input ends of the three-way joint 7, and an output end of the three-way joint 7 is connected with the third exhaust pipe 31.
In some embodiments, the check valve 81 is provided on the connection pipe 8, and the reverse flow of the internal gas of the connection pipe 8 can be avoided by the provision of the check valve 81.
In some embodiments, the second exhaust pipe 22 is connected with a stop valve 23, and the stop valve 23 is stopped when the three-way valve 6 is communicated with the connecting pipe 8, so that the air flow discharged by the first exhaust pipe 12 only enters the blower 3 from the connecting pipe 8, and the air pressure inside the second absorption tower 2 is ensured to be stable.
Thus, various embodiments of the present utility model have been described in detail. In order to avoid obscuring the concepts of the utility model, some details known in the art have not been described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
The above examples only represent some embodiments of the utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (7)
1. The utility model provides a spray exhaust-gas treatment absorbing device which characterized in that: comprises a first absorption tower, a second absorption tower, a blower and a chimney;
a first air inlet pipe is arranged at one side of the first absorption tower, and a first air outlet pipe is arranged at the top of the first absorption tower;
a second air inlet pipe is arranged at one side of the second absorption tower, and a second air outlet pipe is arranged at the top of the second absorption tower;
the gas detection assembly is connected to the first exhaust pipe, the three-way valve is connected to the gas detection assembly, one output end of the three-way valve is connected to the second air inlet pipe, the other output end of the three-way valve is connected to the blower through the connecting pipe, the second exhaust pipe is connected to the blower, and the blower is communicated with the chimney.
2. The spray exhaust gas treatment absorption device according to claim 1, wherein: the gas detection assembly is provided with a detection tube, a detection probe is arranged in the detection tube and is connected with a control module through an AD conversion module, and the output end of the control module is connected with an intermediate relay for controlling the action of the three-way valve.
3. The spray exhaust gas treatment absorption device according to claim 2, wherein: the flange plates are arranged at the two ends of the detection tube, and the flange plates at the two ends of the detection tube are detachably and fixedly connected with the first exhaust pipe and the three-way valve respectively.
4. The spray exhaust gas treatment absorption device according to claim 2, wherein: the control module is a PLC controller.
5. The spray exhaust gas treatment absorption device according to claim 1, wherein: the three-way exhaust pipe is characterized by further comprising a three-way joint and a third exhaust pipe, wherein the second exhaust pipe and the connecting pipe are respectively connected with two input ends of the three-way joint, and the output end of the three-way joint is connected with the third exhaust pipe.
6. The spray exhaust gas treatment absorption device according to claim 1, wherein: and the connecting pipe is provided with a one-way valve.
7. The spray exhaust gas treatment absorption device according to claim 1, wherein: and the second exhaust pipe is connected with a stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805483.7U CN219848877U (en) | 2023-04-12 | 2023-04-12 | Spray waste gas treatment and absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805483.7U CN219848877U (en) | 2023-04-12 | 2023-04-12 | Spray waste gas treatment and absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219848877U true CN219848877U (en) | 2023-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320805483.7U Active CN219848877U (en) | 2023-04-12 | 2023-04-12 | Spray waste gas treatment and absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219848877U (en) |
-
2023
- 2023-04-12 CN CN202320805483.7U patent/CN219848877U/en active Active
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