CN218727097U - Automatic recovery unit of on-line analysis tail gas - Google Patents
Automatic recovery unit of on-line analysis tail gas Download PDFInfo
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- CN218727097U CN218727097U CN202222819700.6U CN202222819700U CN218727097U CN 218727097 U CN218727097 U CN 218727097U CN 202222819700 U CN202222819700 U CN 202222819700U CN 218727097 U CN218727097 U CN 218727097U
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Abstract
The utility model discloses an automatic recovery unit of on-line analysis tail gas, it includes analysis appearance balanced system and negative pressure extraction system. The analyzer balance system is provided with an analysis tail gas interface and an atmosphere interface, the analysis tail gas interface is connected with the analyzer balance system through a balance valve, the analyzer balance system is further provided with a waste liquid discharge main pipe interface, and a liquid discharge valve is arranged between the waste liquid discharge main pipe interface and the analyzer balance system. The negative pressure extraction system has a flare discharge headerInterface and first N 2 Manifold port, the first N 2 And a first pressure regulating valve and a driving valve are arranged between the main pipe interface and the negative pressure extraction system. This automatic recovery unit of tail gas has analysis appearance balanced system and negative pressure extraction system, retrieves tail gas to the torch pipeline and burns the consumption, and no any combustible toxic gas discharges, guarantees the intrinsic safety of site environment.
Description
Technical Field
The utility model relates to a coal chemical production technique especially relates to an automatic recovery unit of on-line analysis tail gas.
Background
The most common pollutants discharged by the coal chemical industry have pungent smell and toxicity, and part of the pollutants are listed as carcinogens, thus posing threats to the production safety and the environment of enterprises. As available under publication No. CN217068263U, application No. 2022.04.14. In this patent, it is proposed to treat the exhaust gas by means of photolytic oxidation. Specifically include spray column and first environmental protection case and first photodissociation oxidation case, first photodissociation oxidation case one end is connected with first air-blower, first air-blower side matches and is equipped with the gas outlet tower, first air-blower is connected with the gas outlet tower through first intake pipe, the side of the gas outlet tower matches and is equipped with second environmental protection case and second photodissociation oxidation case, second photodissociation oxidation case passes through the second intake pipe and is connected with the gas outlet tower, second environmental protection case is connected with the second air-blower through the blast pipe, the second air-blower passes through the connecting tube and is connected with second environmental protection case, the inside fixed baffle that is equipped with of gas outlet tower, the fixed bi-pass solenoid valve that is equipped with of baffle upside, the inside fixed gas monitor that is equipped with of gas outlet tower.
At present, the concentration of each gas component needs to be analyzed and measured on line in the coal chemical production process, sample gas is sent to an analyzer in an analyzer small room for analysis and measurement through pretreatment by an analysis sampling device, and tail gas after analysis is discharged to the atmosphere. The sample gas is related to CO and H 2 、NH 3 、CO 2 、H 2 S and methane are toxic and combustible gases, and fire explosion and personnel poisoning accidents are very easy to happenAnd gas emissions are not readily detectable and perceptible.
In view of this, it is necessary to add an automatic recovery device to the pipeline for discharging the tail gas to the atmosphere, so as to recover the tail gas to the flare pipeline for combustion consumption, thereby ensuring the intrinsic safety of the on-site environment.
SUMMERY OF THE UTILITY MODEL
In order to solve the defect that above-mentioned prior art exists, the utility model provides an automatic recovery unit of online analysis tail gas retrieves tail gas and burns the consumption to the torch pipeline, guarantees site environment safety.
The technical scheme of the utility model is realized like this:
an automatic recovery device for on-line analysis tail gas comprises an analyzer balance system and a negative pressure extraction system, and is characterized in that the analyzer balance system is provided with an analysis tail gas interface and an atmosphere interface, the analysis tail gas interface is connected with the analyzer balance system through a balance valve, the analyzer balance system is also provided with a waste liquid discharge main pipe interface, a liquid discharge valve is arranged between the waste liquid discharge main pipe interface and the analyzer balance system,
the negative pressure extraction system has a flare discharge manifold interface and a first N 2 Manifold port, said first N 2 And a first pressure regulating valve and a driving valve are arranged between the main pipe interface and the negative pressure extraction system.
In the automatic tail gas recovery device of the present invention, the analyzer balance system further has a second N 2 Manifold port, said second N 2 The main pipe interface is connected with a purging valve, the purging valve is connected with a second pressure regulating valve, the second pressure regulating valve is connected with a check valve, and the check valve is connected with an analyzer balance system.
The utility model discloses an among this kind of tail gas automatic recovery unit, balanced liquid seal has in the balanced system of analysis appearance.
The utility model discloses an among this kind of tail gas automatic recovery unit, the negative pressure extraction system has the pump that pumps in.
The utility model discloses an among this kind of tail gas automatic recovery device, when driving valve opened, first pressure regulating valve was with pressure control at 1kg, and flow control is at 0.6L/min.
The utility model discloses an among this kind of tail gas automatic recovery unit, if first pressure regulating valve flow is less than 0.6L/min, then transfers its pressure greatly, transfers its pressure to diminish otherwise.
Implement the utility model discloses an automatic recovery unit of this kind of on-line analysis tail gas has following beneficial effect: this automatic recovery unit of tail gas has analysis appearance balanced system and negative pressure extraction system, retrieves tail gas to the torch pipeline and burns the consumption, and no any combustible toxic gas discharges, guarantees the intrinsic safety of site environment.
Drawings
FIG. 1 is a schematic structural view of an automatic tail gas recovery device for on-line analysis according to the present invention;
the reference numerals are represented as: flare discharge header pipe interface 1, first N 2 A main pipe interface 2, an analysis tail gas interface 3, an atmosphere interface 4, a waste liquid discharge main pipe interface 5 and a second N 2 The system comprises a manifold interface 6, an analyzer balance system 7, a negative pressure extraction system 8, a first pressure regulating valve 9, a driving valve 10, a balance valve 11, a drain valve 12, a purge valve 13, a second pressure regulating valve 14 and a check valve 15.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in FIG. 1, the utility modelThe novel automatic recovery device for the online analysis of the tail gas comprises an analyzer balance system 7 and a negative pressure extraction system 8. The analyzer balance system 7 is used for ensuring stable exhaust, ensuring the discharge pressure of the instrument and meeting the analysis requirements of the instrument. The analyzer balance system is provided with an analysis tail gas interface 3 and an atmosphere interface 4. The analysis tail gas interface 3 is connected with an analyzer balance system 7 through a balance valve 11. The negative pressure extraction system 8 has a flare discharge manifold port 1 and a first N 2 Manifold port 2. First N 2 A first pressure regulating valve 9 and a driving valve 10 are arranged between the manifold port 2 and the negative pressure extraction system 8. Due to the higher pressure of the flare discharge header, N 2 As driving gas through the first N 2 The manifold port 2 enters a negative pressure extraction system 8. And then the pressure in the flare header pipe is reduced to the standard atmospheric pressure through the negative pressure extraction system 8, so that the low-pressure tail gas is discharged into the high-pressure flare pipeline. Meanwhile, before the analyzed tail gas enters the negative pressure extraction system 8, the pressure is stably connected through the first pressure regulating valve 9, and the pressure fluctuation of the analyzed tail gas is reduced.
The analyzer balance system 7 is provided with an analysis tail gas interface 3 and an atmosphere interface 4, and the analysis tail gas interface 3 is connected with the analyzer balance system 7 through a balance valve 11. The analyzer balance system 7 is further provided with a waste liquid discharge header pipe interface 5, and a liquid discharge valve 12 is arranged between the waste liquid discharge header pipe interface 5 and the analyzer balance system 7. The analyzer balance system 7 also has a second N 2 Manifold port 6, second N 2 The manifold port 6 is connected with a purge valve 13. The purge valve 13 is connected to a second pressure control valve 14, the second pressure control valve 14 is connected to a non-return valve 15, and the non-return valve 15 is connected to the analyzer balancing system 7.
In this embodiment, the specific operation method of the automatic recovery device for online analysis of tail gas is as follows: firstly, the communication state and the tightness of the analyzer balance system 7 and each interface are checked. The equalization valve 11 is then closed and the supply of exhaust gas is stopped. Then the drive valve 10 is opened and the negative pressure extraction system is started to extract the tail gas. The pressure was controlled to about 1kg by the first pressure regulating valve 9, and the flow rate was controlled to 0.6L/min. If the flow rate is less than 0.6L/min, the pressure of the first pressure regulating valve 9 is adjusted to be high, otherwise, the pressure of the first pressure regulating valve 9 is adjusted to be low. Purge valve 13 is then opened and nitrogen enters analyzer balance system 7 via second pressure regulating valve 14 and check valve 15. And finally, slowly opening the balance valve 11 until the balance valve is fully opened, and adjusting the opening and closing size of the driven valve 10 to enable the analyzer balance system 7 to reach a balance state.
Further, in this embodiment, the analyzer balance system 7 has a balance hydraulic seal therein. When the flow of the tail gas after the analysis is introduced into the balance valve 11 is increased, the supplementary nitrogen is dynamically reduced; and when the flow of the tail gas after the analysis is introduced into the balance valve 11 is reduced, the supplementary nitrogen is dynamically increased, and the analyzer balance system 7 is further stabilized.
Further, in the present embodiment, the analyzed exhaust gas enters the analyzer balance system 7, and the pressure is controlled by the second pressure regulating valve 14, so as to prevent the analyzed exhaust gas from fluctuating.
Further, in the present embodiment, the negative pressure pumping system 8 has a pump therein. Using N 2 As driving gas, through the first N 2 The manifold port 2 enters the pump. Then the pumping pump is used for pressurizing and then discharging to a flare system through a flare discharging main pipe interface 1.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An automatic recovery device for on-line analysis tail gas comprises an analyzer balance system and a negative pressure extraction system, and is characterized in that the analyzer balance system is provided with an analysis tail gas interface and an atmosphere interface, the analysis tail gas interface is connected with the analyzer balance system through a balance valve, the analyzer balance system is also provided with a waste liquid discharge main pipe interface, a liquid discharge valve is arranged between the waste liquid discharge main pipe interface and the analyzer balance system,
the negative pressure extraction system has a flare discharge manifold interface and a first N 2 Manifold port, the first N 2 A first pressure regulating valve is arranged between the main pipe interface and the negative pressure extraction systemAnd driving the valve.
2. The automatic tail gas recovery device of claim 1, wherein the analyzer balance system further comprises a second N 2 Manifold port, said second N 2 The main pipe interface is connected with a purging valve, the purging valve is connected with a second pressure regulating valve, the second pressure regulating valve is connected with a check valve, and the check valve is connected with an analyzer balance system.
3. The automatic tail gas recovery device according to claim 1 or 2, wherein a balancing liquid seal device is arranged in the analyzer balancing system.
4. The automatic tail gas recovery device according to claim 1 or 2, wherein a pump is provided in the negative pressure pumping system.
5. The automatic exhaust gas recovery device according to claim 1, wherein when the drive valve is opened, the first pressure regulating valve controls the pressure to 1kg and the flow rate to 0.6L/min.
6. The automatic tail gas recovery device according to claim 5, wherein if the flow rate of the first pressure regulating valve is lower than 0.6L/min, the pressure of the first pressure regulating valve is increased, and otherwise, the pressure of the first pressure regulating valve is decreased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222819700.6U CN218727097U (en) | 2022-10-26 | 2022-10-26 | Automatic recovery unit of on-line analysis tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222819700.6U CN218727097U (en) | 2022-10-26 | 2022-10-26 | Automatic recovery unit of on-line analysis tail gas |
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| Publication Number | Publication Date |
|---|---|
| CN218727097U true CN218727097U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222819700.6U Active CN218727097U (en) | 2022-10-26 | 2022-10-26 | Automatic recovery unit of on-line analysis tail gas |
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| Country | Link |
|---|---|
| CN (1) | CN218727097U (en) |
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2022
- 2022-10-26 CN CN202222819700.6U patent/CN218727097U/en active Active
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