CN215975665U - Contain hydrocarbon tail gas exhaust treatment system - Google Patents
Contain hydrocarbon tail gas exhaust treatment system Download PDFInfo
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- CN215975665U CN215975665U CN202122091474.XU CN202122091474U CN215975665U CN 215975665 U CN215975665 U CN 215975665U CN 202122091474 U CN202122091474 U CN 202122091474U CN 215975665 U CN215975665 U CN 215975665U
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- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 81
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 80
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 79
- 239000007789 gas Substances 0.000 claims abstract description 168
- 239000002912 waste gas Substances 0.000 claims abstract description 129
- 238000002485 combustion reaction Methods 0.000 claims abstract description 16
- 238000011084 recovery Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 17
- 238000009826 distribution Methods 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 5
- 238000007670 refining Methods 0.000 abstract description 2
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000246 remedial effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
A hydrocarbon-containing tail gas and waste gas treatment system comprises a water seal tank, wherein the water seal tank is connected with an inlet pipeline of a buffer tank through an outlet pipeline of the water seal tank, a first target-type flowmeter is arranged on the tail gas and waste gas inlet pipeline, and a first total hydrocarbon analyzer is arranged on the outlet pipeline of the water seal tank; one end of a buffer tank inlet pipeline is communicated with the tail gas and waste gas buffer tank, the other end of the buffer tank inlet pipeline is communicated with the oil gas recovery device, a tail gas and waste gas backflow control valve and a tail gas and waste gas mixing front control valve air mixer are arranged on the pipeline, an air blower at the output end of the air blower is communicated with the buffer tank inlet pipeline through an air blower outlet pipeline, and a one-way check valve and an air blower outlet control valve are arranged on the air blower outlet pipeline; the tail gas waste gas buffer tank is connected with combustion equipment through a buffer tank outlet pipeline, and a second total hydrocarbon analyzer, a buffer tank outlet pipeline control valve and a flame arrester are arranged on the buffer tank outlet pipeline; the utility model can be directly added in various oil refining, chemical engineering and medical devices, and has wide universality.
Description
Technical Field
The utility model belongs to the field of petrochemical industry tail gas and waste gas treatment, and particularly relates to a hydrocarbon-containing tail gas and waste gas treatment system.
Background
In recent years, along with the upgrade of national environmental protection requirements, higher environmental protection requirements are put forward on the emission of hydrocarbon-containing tail gas and waste gas of devices and storage and transportation facilities in the petrochemical industry. At present, the petrochemical industry adopts an oil gas recovery device to treat hydrocarbon-containing tail gas waste gas so as to meet the requirement of environmental protection. Along with the upgrading of the environmental protection requirement, the original oil gas recovery device of some enterprises can not reach the current environmental protection requirement, so that the problem that the economy and the environmental protection can not be considered at the moment is solved, namely the problem that how to rapidly reach the environmental protection requirement without increasing large investment becomes some enterprises is solved.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a system which achieves the purposes of environmental protection and economy and can safely and reliably treat hydrocarbon-containing tail gas.
The purpose of the utility model is realized by adopting the following technical scheme. The utility model provides a hydrocarbon-containing tail gas and waste gas treatment system which comprises a water-sealed tank, a tail gas and waste gas buffer tank, a blower, a PLC (programmable logic controller) control unit, a reset button and an emergency stop button, wherein the water-sealed tank is connected with a unit for generating hydrocarbon-containing tail gas and waste gas through a tail gas and waste gas inlet pipeline and is connected with a buffer tank inlet pipeline through a water-sealed tank outlet pipeline; one end of an inlet pipeline of the buffer tank is communicated with the tail gas and waste gas buffer tank, the other end of the inlet pipeline of the buffer tank is communicated with the oil gas recovery device, and a tail gas and waste gas reflux control valve, a tail gas and waste gas mixing front control valve and an air mixer are sequentially arranged on the inlet pipeline of the buffer tank from the oil gas recovery device to the tail gas and waste gas buffer tank; the output end of the blower is communicated with the inlet pipeline of the buffer tank through an outlet pipeline of the blower, a one-way check valve and an outlet control valve of the blower are arranged on the outlet pipeline of the blower, and the blower is used for inputting air into the inlet pipeline of the buffer tank to reduce the hydrocarbon concentration in the tail gas and the waste gas in the inlet pipeline of the buffer tank; the tail gas waste gas buffer tank is connected with the combustion equipment through a buffer tank outlet pipeline, a second total hydrocarbon analyzer, a buffer tank outlet pipeline control valve and a flame arrester are sequentially arranged in the direction from the tail gas waste gas buffer tank to the combustion equipment on the buffer tank outlet pipeline, and the second total hydrocarbon analyzer is used for detecting whether the hydrocarbon concentration of the treated tail gas waste gas meets the equipment treatment requirement.
Further, the junction of water seal tank outlet pipeline and buffer tank inlet pipeline is located between tail gas waste gas backflow control valve and the tail gas waste gas control valve before mixing, and when the tail gas waste gas hydrocarbon concentration that first target flowmeter and first total hydrocarbon analyzer detected satisfied oil gas recovery unit's processing requirement, the tail gas waste gas backflow control valve was closed, tail gas waste gas backflow control valve opened, sent tail gas waste gas to oil gas recovery unit through buffer tank inlet pipeline and handled.
Furthermore, when the hydrocarbon content concentration in the tail gas and waste gas detected by the first target flowmeter and the first total hydrocarbon analyzer is within a preset treatment concentration value, the blower, the control valve before mixing the tail gas and waste gas and the control valve at the outlet of the blower are opened while the control valve for back flow of the tail gas and waste gas is closed, and the tail gas and waste gas in the inlet pipeline of the buffer tank and the air conveyed from the blower are mixed by the air mixer and then conveyed to the tail gas and waste gas buffer tank.
Furthermore, all be provided with on water sealed tank and the tail gas waste gas buffer tank and be used for carrying out measuring manometer, the on-the-spot level gauge and the liquid level transmitter of measuring to inside liquid level to its inside pressure, water sealed tank and tail gas waste gas buffer tank bottom all are provided with blowoff valve and end cap.
Furthermore, the liquid level transmitter, the total hydrocarbon analyzer, the target flowmeter, the blower outlet control valve, the buffer tank outlet pipeline control valve, the tail gas and waste gas backflow control valve, the tail gas and waste gas mixing front control valve, the reset button and the emergency stop button are electrically connected with the PLC control unit.
Furthermore, the connection point of the outlet pipeline of the air blower and the inlet pipeline of the buffer tank is positioned between the control valve and the air mixer before mixing the tail gas and the waste gas, and the tail gas and the waste gas conveyed from the water seal tank are mixed with the air conveyed from the air blower in the inlet pipeline of the buffer tank through the air mixer and then conveyed to the tail gas and waste gas buffer tank.
Further, the air blower is a variable-frequency air distribution air blower.
Further, the second total hydrocarbon analyzer is used for detecting whether the hydrocarbon concentration of the treated tail gas and the waste gas meets the treatment requirement of the equipment, and when the second total hydrocarbon analyzer detects that the hydrocarbon concentration of the treated tail gas and the waste gas meets the treatment standard, the treated tail gas and the waste gas are sent to the combustion equipment for incineration; when the second total hydrocarbon analyzer detects that the hydrocarbon concentration of the tail gas and the waste gas does not reach the standard and reaches the primary hydrocarbon concentration alarm value of 25% LEL, the PLC control unit adjusts the output of the blower to increase the air distribution volume and quickly adjust the hydrocarbon concentration of the tail gas and the waste gas to meet the equipment treatment requirement.
Further, when the hydrocarbon concentration after the tail gas waste gas treatment does not reach the standard and reaches the secondary hydrocarbon concentration alarm value of 50 percent LEL, the blower fails and any one of three events of triggering a field emergency stop button occurs, the system enters an emergency shutdown program.
Further, the input end of the blower is provided with a blower inlet pipeline, and the end part of the blower inlet pipeline, which is far away from the blower, is provided with an air filter. By means of the technical scheme, the utility model has the advantages that:
1. the utility model can be directly added in various oil refining, chemical and medical devices which are newly built or put into operation, and has wide universality;
2. the utility model can process the hydrocarbon-containing tail gas waste gas by analyzing the hydrocarbon content in the hydrocarbon-containing tail gas waste gas and linking the air blower and the control valve, then uses the processed tail gas waste gas as the supplementary fuel of combustion equipment such as a heating furnace and the like, eliminates the pollution of the tail gas waste gas to the atmosphere by full combustion, and solves the problem that the existing oil gas processing system can not meet the environmental protection requirement and causes environmental pollution.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view showing the structure of a system for treating a hydrocarbon-containing tail gas exhaust gas according to the present invention.
[ reference numerals ]
1-a water-sealed tank, 101-a tail gas and waste gas inlet line, 102-a water-sealed tank outlet line, 2-a tail gas and waste gas buffer tank, 201-a buffer tank inlet line, 202-a buffer tank inlet and outlet line, 3-an air mixer, 4-a blower, 401-a blower outlet line, 402-a blower inlet line, 501-a tail gas and waste gas backflow control valve, 502-a tail gas and waste gas mixing front control valve, 503-a buffer tank outlet line control valve, 504-a blower outlet control valve, 6-a flame arrester, 7-a PLC control unit, 8-a reset button, 9-an emergency stop button, 10-a single-phase check valve, 11-a first blow-down valve and plug, 12-an air filter, 13-a first pressure gauge, 14-a first in-situ liquid level gauge, 15-a first liquid level transmitter, 16-a first total hydrocarbon analyzer, 17-a first target flowmeter, 18-a second total hydrocarbon analyzer, 19-a second pressure gauge, 20-a second on-site liquid level meter, 21-a second liquid level transmitter, 22-a second blow-off valve and plug, 23-an operation station.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the predetermined purpose of the utility model, the following detailed description will be given to a system for treating exhaust gas containing hydrocarbons according to the present invention, its specific implementation, structure, features and effects, with reference to the accompanying drawings and preferred embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Referring to fig. 1, a hydrocarbon-containing tail gas and waste gas treatment system comprises a water-sealed tank 1, a tail gas and waste gas buffer tank 2, an air blower 4, a PLC control unit 7, a reset button 8, an emergency stop button 9 and an operation console 23, wherein a first blowoff valve and a plug 11 are arranged at the bottom of the water-sealed tank 1, an inlet of the water-sealed tank 1 and a tail gas and waste gas inlet pipeline 101 are arranged on one side of the water-sealed tank 1, a first target-type flowmeter 17 is further arranged on the tail gas and waste gas inlet pipeline 101, and the inlet of the water-sealed tank 1 is used for allowing the tail gas and waste gas inlet pipeline 101 to enter the water-sealed tank 1. One end of the tail gas and waste gas inlet pipeline 101 is connected with a unit for generating hydrocarbon-containing tail gas and waste gas, and the other end of the tail gas and waste gas inlet pipeline extends into the water-sealed tank 1, wherein the unit for generating hydrocarbon-containing tail gas and waste gas comprises a production device, a sewage lifting pond, a sewage treatment plant, an oil-gas recovery facility and the like, and the tail gas and waste gas generated by the unit for generating hydrocarbon-containing tail gas and waste gas enters the water-sealed tank 1 through the tail gas and waste gas inlet pipeline 101. The partial exhaust gas inlet pipeline 101 inside the water-sealed tank 1 bends towards the bottom of the water-sealed tank 1, so that the exhaust gas is firstly discharged into the bottom of the water-sealed tank 1. Be provided with first manometer 13, first level gauge 14 and first level transmitter 15 on the water-sealed tank 1 on, first manometer 13 sets up at 1 tops of water-sealed tank, is used for detecting the pressure of 1 inside of water-sealed tank, and first level gauge 14 and first level transmitter 15 on the spot are used for detecting the liquid level in the water-sealed tank 1.
The top of the water-sealed tank 1 is provided with a water-sealed tank outlet pipeline 102, the water-sealed tank outlet pipeline 102 is provided with a first total hydrocarbon analyzer 16, the first total hydrocarbon analyzer 16 and the first target flowmeter 17 are used for detecting and metering the hydrocarbon content in the hydrocarbon-containing tail gas exhaust gas, and one end of the water-sealed tank outlet pipeline 102, which is far away from the water-sealed tank 1, is communicated with a buffer tank inlet pipeline 201. Buffer tank entry pipeline 201 one end stretches into in tail gas exhaust buffer tank 2, the other end links to each other with oil gas recovery unit, tail gas exhaust reflux control valve 501 has set gradually on buffer tank entry pipeline 201 from oil gas recovery unit to the direction of tail gas exhaust buffer tank 2, control valve 502 and air mixer 3 before the tail gas exhaust mixes, the junction of water seal tank outlet pipeline 102 and buffer tank entry pipeline 201 is located between control valve 502 before tail gas exhaust reflux control valve 501 and the tail gas exhaust mix, thereby make the tail gas exhaust who comes from water seal tank 1 transport can carry to oil gas recovery unit through tail gas exhaust reflux control valve 501, also can carry to tail gas exhaust buffer tank 2 through control valve 502 before the tail gas exhaust mix. The first liquid level transmitter 15, the first total hydrocarbon analyzer 16, the first target flowmeter 17, the tail gas and waste gas backflow control valve 501 and the tail gas and waste gas mixing front control valve 502 are electrically connected with the PLC control unit 7 and are controlled to work or be in an open state through the PLC control unit 7, the operating platform 23 is also electrically connected with the PLC control unit 7, and the whole system can be controlled manually.
The input of blower 4 is provided with blower inlet pipeline 402, the one end tip that blower inlet pipeline 402 kept away from blower 4 is provided with air cleaner 12, the output of blower 4 is provided with blower outlet pipeline 401, the one end that blower outlet pipeline 401 kept away from blower 4 is linked together with buffer tank inlet pipeline 201 and the tie point of blower outlet pipeline 401 and buffer tank inlet pipeline 201 is located between preceding control valve 502 of tail gas waste gas mixture and air mixer 3, air mixer 3 is used for carrying out intensive mixing to the air that blower 4 sent over and the tail gas waste gas that sends over from water-sealed tank 1. The blower outlet pipeline 401 is also provided with a one-way check valve 10 and a blower outlet control valve 504 in sequence from the blower 4 to the buffer tank inlet pipeline 201, the one-way check valve 10 is used for enabling air to be only conveyed from the blower 4 to the buffer tank inlet pipeline 201 but not to be conveyed in the reverse direction, and the blower outlet control valve 504 is used for controlling the opening and closing state of the blower outlet pipeline 401; the blower 4 and the blower outlet control valve 504 are electrically connected with the PLC control unit 7 and the work or the open/close state thereof is controlled by the PLC control unit 7. The blower in the embodiment is a variable frequency air distribution blower, and the type of the blower in other embodiments of the utility model is selected and set according to actual conditions.
The bottom of the tail gas and waste gas buffer tank 2 is provided with a second blowoff valve and a plug 22, the top is provided with a buffer tank outlet pipeline 202, one end of the buffer tank outlet pipeline 202 is communicated with the tail gas and waste gas buffer tank 2, the other end of the buffer tank outlet pipeline is connected with a combustion device, and the combustion device comprises but is not limited to a heating furnace. A second total hydrocarbon analyzer 18, a buffer tank outlet pipeline control valve 503 and a flame arrester 6 are sequentially arranged on the buffer tank outlet pipeline 202 from the tail gas waste gas buffer tank 2 to the combustion equipment; the tail gas and waste gas buffer tank 2 is also provided with a second pressure gauge 19 for measuring the pressure in the tail gas and waste gas buffer tank 2, a second local liquid level meter 20 for measuring the liquid level in the tail gas and waste gas buffer tank 2 and a second liquid level transmitter 21. The second total hydrocarbon analyzer 18, the buffer tank outlet line control valve 503, the second liquid level transmitter 21, the reset button 8 and the emergency stop button 9 are all electrically connected with the PLC control unit 7 and the working state thereof is controlled by the PLC control unit 7.
The second total hydrocarbon analyzer 18 is used for detecting whether the hydrocarbon concentration of the treated tail gas and the waste gas meets the treatment requirement of the equipment, two-stage alarm measures are set, and if the second total hydrocarbon analyzer 18 detects that the hydrocarbon concentration of the tail gas and the waste gas meets the treatment standard, the treated tail gas and the waste gas are allowed to be sent to combustion equipment for incineration; if the hydrocarbon concentration after the tail gas and waste gas treatment does not reach the standard and the hydrocarbon concentration reaches the primary hydrocarbon concentration alarm value of 25% LEL, the PLC control unit 7 automatically adopts remedial measures, namely, sends a frequency conversion command according to a preset multiplying power to adjust the output of the air blower 4 so as to increase the air distribution quantity, quickly adjusts the hydrocarbon concentration in the tail gas and waste gas, and ensures that the concentration reaches the limit value of the explosion value of the hydrocarbon contained in the tail gas and waste gas to be below a lower limit value, so that the tail gas and waste gas can be safely sent into combustion equipment such as a heating furnace and the like for combustion so as to meet the equipment treatment requirements.
In addition, if the hydrocarbon concentration after the tail gas and waste gas treatment does not reach the standard and the hydrocarbon concentration reaches the secondary hydrocarbon concentration alarm value of 50% LEL, the blower 4 breaks down and the field emergency stop button 9 is triggered, the system enters an emergency closing program, the emergency closing program is that the PLC control unit 7 emergently closes the outlet pipe line control valve 503 of the buffer tank after the treatment, the control valve 502 before the tail gas and waste gas are mixed and the blower outlet control valve 504 stops the blower 4 to work, and simultaneously opens the tail gas and waste gas backflow control valve 501. After on-site investigation and fault clearing, the on-site reset is carried out through the reset button 8, the PLC control unit 7 automatically opens the outlet pipeline control valve 503 of the treated buffer tank and the outlet control valve 504 of the blower and starts the blower 4, corresponding time is delayed (the delay time is determined according to production conditions) so as to completely replace the hydrocarbon-containing tail gas and waste gas remained in the tail gas and waste gas treatment system through fresh air, finally, the control valve 502 before mixing the tail gas and waste gas is opened, the tail gas and waste gas backflow control valve 501 is closed, and the system is put into normal operation.
The control valves in this embodiment are two-position two-way sealing gate valves, and are provided with two-position three-way electromagnetic valves.
The utility model has the following working principle:
the hydrocarbon-containing tail gas waste gas generated by the unit containing hydrocarbon-containing tail gas waste gas enters the water-sealed tank 1 through the tail gas waste gas inlet pipeline 101, firstly, the hydrocarbon content in the hydrocarbon-containing tail gas waste gas is detected and measured through the first total hydrocarbon analyzer 16 and the first target flowmeter 17, the PLC control unit 7 obtains the required air distribution quantity according to the detection results of the first total hydrocarbon analyzer 16 and the first target flowmeter 17 and the formula of air flow rate, tail gas waste gas hydrocarbon concentration and tail gas waste gas flow rate)/(0.2 LEL), wherein the air distribution quantity is the air quantity output by the air blower 4 to the inlet pipeline 201 of the buffer tank, and LEL is the lower explosion limit concentration of the hydrocarbon in the tail gas waste gas, and then the PLC control unit 7 selects and processes the following two processing modes according to the required air distribution quantity and the equipment processing quantity:
the first processing mode is as follows: if the hydrocarbon concentration of the tail gas and the waste gas meets the treatment requirement of the oil gas recovery device, the result shows that the tail gas and the waste gas still have the oil gas recovery value, the PLC control unit 7 automatically closes the tail gas and the waste gas mixing front control valve 502, opens the tail gas and the waste gas backflow control valve 501, and sends the tail gas and the waste gas to the oil gas recovery device for treatment through the inlet pipeline 201 of the buffer tank;
the second treatment method comprises the following steps: if the hydrocarbon content in the tail gas and waste gas is within the preset treatment concentration value, the PLC control unit 7 sends a frequency conversion instruction to adjust the corresponding air quantity output by the blower 4, simultaneously opens the tail gas and waste gas mixing front control valve 502 and the blower outlet control valve 504, closes the tail gas and waste gas backflow control valve 501, mixes the tail gas and waste gas with air by the air mixer 3, and sends the mixture to the tail gas and waste gas buffer tank 2;
after the treated tail gas and waste gas enter the tail gas and waste gas buffer tank 2, the second total hydrocarbon analyzer 18 detects whether the hydrocarbon concentration of the treated tail gas and waste gas meets the equipment treatment requirement, and the tail gas and waste gas buffer tank 2 enters combustion equipment for incineration or enters the combustion equipment for incineration after the PLC control unit 7 automatically adopts remedial measures to quickly adjust the hydrocarbon concentration of the tail gas and waste gas to meet the equipment treatment requirement.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present invention without departing from the scope of the present invention, and still fall within the scope of the present invention.
Claims (7)
1. A system for treating exhaust gas containing hydrocarbon is characterized in that: the device comprises a water-sealed tank, a tail gas and waste gas buffer tank, a blower, a PLC control unit, a reset button and an emergency stop button, wherein the water-sealed tank is connected with a unit for generating hydrocarbon-containing tail gas and waste gas through a tail gas and waste gas inlet pipeline and is connected with a buffer tank inlet pipeline through a water-sealed tank outlet pipeline; one end of an inlet pipeline of the buffer tank is communicated with the tail gas and waste gas buffer tank, the other end of the inlet pipeline of the buffer tank is communicated with the oil gas recovery device, and a tail gas and waste gas reflux control valve, a tail gas and waste gas mixing front control valve and an air mixer are sequentially arranged on the inlet pipeline of the buffer tank from the oil gas recovery device to the tail gas and waste gas buffer tank; the output end of the blower is communicated with the inlet pipeline of the buffer tank through an outlet pipeline of the blower, a one-way check valve and an outlet control valve of the blower are arranged on the outlet pipeline of the blower, and the blower is used for inputting air into the inlet pipeline of the buffer tank to reduce the hydrocarbon concentration in the tail gas and the waste gas in the inlet pipeline of the buffer tank; the tail gas waste gas buffer tank is connected with the combustion equipment through a buffer tank outlet pipeline, a second total hydrocarbon analyzer, a buffer tank outlet pipeline control valve and a flame arrester are sequentially arranged in the direction from the tail gas waste gas buffer tank to the combustion equipment on the buffer tank outlet pipeline, and the second total hydrocarbon analyzer is used for detecting whether the hydrocarbon concentration of the treated tail gas waste gas meets the equipment treatment requirement.
2. The system according to claim 1, wherein: the joint of the outlet pipeline of the water seal tank and the inlet pipeline of the buffer tank is positioned between the tail gas and waste gas backflow control valve and the tail gas and waste gas mixing front control valve.
3. The system according to claim 1, wherein: all be provided with on water sealed tank and the tail gas waste gas buffer tank and be used for carrying out measuring manometer, carrying out measuring on the liquid level meter on the spot and the liquid level transmitter to inside liquid level to its inside pressure, water sealed tank and tail gas waste gas buffer tank bottom all are provided with blowoff valve and end cap.
4. The system according to claim 1, wherein: the liquid level transmitter, the total hydrocarbon analyzer, the target flowmeter, the blower outlet control valve, the buffer tank outlet pipeline control valve, the tail gas and waste gas backflow control valve, the tail gas and waste gas mixing front control valve, the reset button and the emergency stop button are electrically connected with the PLC control unit.
5. The system according to claim 1, wherein: the connection point of the blower outlet line and the buffer tank inlet line is located between the exhaust gas and exhaust gas mixing pre-control valve and the air mixer.
6. The system according to claim 1, wherein: the air blower is a variable frequency air distribution air blower.
7. The system according to claim 1, wherein: the air blower input end is provided with air blower inlet pipeline and the end of the air blower inlet pipeline far away from the air blower is provided with an air filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091474.XU CN215975665U (en) | 2021-08-31 | 2021-08-31 | Contain hydrocarbon tail gas exhaust treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091474.XU CN215975665U (en) | 2021-08-31 | 2021-08-31 | Contain hydrocarbon tail gas exhaust treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215975665U true CN215975665U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122091474.XU Active CN215975665U (en) | 2021-08-31 | 2021-08-31 | Contain hydrocarbon tail gas exhaust treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215975665U (en) |
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2021
- 2021-08-31 CN CN202122091474.XU patent/CN215975665U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A hydrocarbon containing exhaust gas treatment system Granted publication date: 20220308 Pledgee: Zhongyuan bank Limited by Share Ltd. Luoyang branch Pledgor: LUOYANG ZHIDA PETROCHEMICAL ENGINEERING Co.,Ltd. Registration number: Y2024980040307 |