CN219775759U - Petrochemical torch gas low pressure high calorific value recovery unit - Google Patents
Petrochemical torch gas low pressure high calorific value recovery unit Download PDFInfo
- Publication number
- CN219775759U CN219775759U CN202320930452.4U CN202320930452U CN219775759U CN 219775759 U CN219775759 U CN 219775759U CN 202320930452 U CN202320930452 U CN 202320930452U CN 219775759 U CN219775759 U CN 219775759U
- Authority
- CN
- China
- Prior art keywords
- flare
- petrochemical
- pipeline
- recovery
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 65
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims description 15
- 238000004064 recycling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 69
- 239000012530 fluid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model relates to a petrochemical engineering flare gas low-pressure high-heat value recovery device which is used for connecting production equipment, a flare and an incineration device, and comprises a flare liquid separating tank communicated with the production equipment, a flare water sealing tank communicated with the flare liquid separating tank and a flare gas recovery component communicated with the flare liquid separating tank and the incineration device, wherein the flare gas recovery component consists of a flare recovery pipeline, a Roots blower, a control valve and an instrument suite. The utility model provides a petrochemical flare gas low-pressure high-heat value recovery device, which does not need to adopt a gas holder to store recovered gas, reduces the occupation of the device and the production operation maintenance cost, and can collect the flare recovered gas at the temperature exceeding 60 ℃ at the same time, thereby having high economy.
Description
Technical Field
The utility model relates to the field of flare recovery devices, in particular to a petrochemical flare gas low-pressure high-heat value recovery device.
Background
The torch system is an important facility for ensuring production safety of petrochemical enterprises, and is mainly used for treating high-temperature and high-pressure gas which is discharged by a safety valve at the jumping of an accident state caused by production fluctuation of each production device, and the main components of the high-temperature and high-pressure gas are hydrocarbon, hydrogen, noncondensable gas and the like, belong to inflammable and explosive gas, and are usually discharged into the atmosphere after being burnt by a pilot lamp ignition mode; the petrochemical enterprises have the phenomenon that safety valves are slightly leaked in the production process, and the requirements of energy conservation and emission reduction and the continuous pursuit of the petrochemical enterprises on the maximization of benefits are considered, so that the flare gas is recycled and utilized by each enterprise.
The existing petrochemical enterprise torch gas heat recovery scheme is to store gas by adopting a gas holder, wherein the gas holder is usually a dry gas holder, and the gas holder is conveyed into a fuel gas system through a compressor; in the prior art, the rubber film of the dry gas holder is not high-temperature resistant, and cannot collect the flare recovered gas at the temperature exceeding 60 ℃, so that the low-pressure and high-heat-value flare gas is wasted.
Disclosure of Invention
In view of the above, the utility model provides a petrochemical flare gas low-pressure high-heat value recovery device, which does not need to adopt a gas holder to store recovered gas, reduces the occupation of the device and the production operation maintenance cost, and can collect the flare recovered gas at the temperature exceeding 60 ℃ at the same time, thereby having high economy.
The aim of the utility model is achieved by the following technical scheme:
the utility model provides a petrochemical flare gas low pressure high calorific value recovery unit for connect production facility, torch, burn the device, include with the torch branch fluid reservoir of production facility intercommunication, with the torch water seal jar of torch branch fluid reservoir intercommunication, and the flare gas recovery unit who communicates the torch branch fluid reservoir and burn the device, the flare gas recovery unit comprises flare recovery pipeline, roots fan, control valve and instrument external member.
The recovery device does not need to adopt a gas holder to store the recovered gas, reduces the occupation of land of the device and the production operation maintenance cost, and can collect the flare recovered gas at the temperature exceeding 60 ℃ at the same time, thereby having high economy. The liquid level is established through the flare water sealed tank and is matched with the flare gas recovery component, so that the low-pressure, high-temperature and high-heat-value flare gas can be recovered.
Optionally, in one possible implementation, the flare recovery line is connected to the top of the flare liquid separation tank.
The flare recovery pipeline is connected to the top of the flare liquid separating tank, and because the liquid level is established in the flare water sealed tank, system back pressure can be formed in the flare recovery pipeline, so that the flare gas recovery assembly is ensured to continuously and stably operate under the system back pressure.
Optionally, in one possible implementation, the control valve and instrument suite includes a split tank pressure detector for detecting a flare split tank, a line quick-shut valve in linkage with the split tank pressure detector for closing the flare recovery line.
The liquid separating tank pressure detector is arranged at the top of the liquid separating tank of the torch, the interlocking control pipeline of the liquid separating tank pressure detector is quickly closed, the torch recovery pipeline is cut off under an accident state, high-pressure gas is prevented from entering the torch recovery pipeline, the high-pressure gas breaks through the water seal height, the safety of the production device is effectively guaranteed, and the safety of the production device is effectively guaranteed.
Optionally, in one possible implementation manner, the control valve and the instrument suite include an output pressure detector for detecting the output end pressure of the Roots blower, and a blower backflow quick-opening valve linked with the output pressure detector, where the blower backflow quick-opening valve is connected to the input end and the output end of the Roots blower through a blower backflow pipeline, and the blower backflow quick-opening valve is used for opening the blower backflow pipeline.
The fan backflow quick-opening valve and the output pressure detector are interlocked for protection, when the pressure of the output end of the Roots fan is overlarge, the quick-opening valve is opened, and part of high-pressure air output by the Roots fan flows back, so that the output pressure of the Roots fan is reduced, and the stable operation of the incinerator is ensured.
Optionally, in one possible implementation, the control valve and instrument suite includes an input pressure detector for detecting an input pressure of the Roots blower, the input pressure detector being in linkage with the Roots blower for controlling a frequency of the Roots blower.
The Roots blower realizes variable frequency control through the input pressure detector, and the running power of the Roots blower is regulated and controlled in real time according to the data of the input pressure detector.
Optionally, in one possible implementation manner, the flare liquid separation tank is communicated with the production equipment through a flare system pipe network, the flare liquid separation tank is communicated with a flare water seal tank through a flare main pipeline, and the flare water seal tank is communicated with the flare through a flare gas outlet pipeline. The Roots blower is communicated with the incineration device through a recovery output pipeline, and the recovery output pipeline is provided with a one-way valve.
The flare recycling pipeline adopts a branch mode at the top of the flare liquid separating tank and the flare gas main pipeline, the flare recycling pipeline and the flare gas main pipeline are mutually independent, the flare recycling pipeline is provided with interlocking protection, and the pressure measuring point of the interlocking protection is the top area of the flare liquid separating tank, so that the stable operation of the Roots blower and the incinerator is ensured.
Optionally, in a possible implementation manner, a water seal height is arranged in the flare water seal tank, the water seal height is 150-1000mm, and the preset system back pressure is less than 10kPaG.
The system back pressure is established through the flare water sealed tank, low-pressure, high-temperature and high-heat-value flare gas generated during normal production of the production device is treated, and meanwhile, safety interlocking protection is set, so that safety protection during flare gas accident emission is guaranteed.
Compared with the prior art, the utility model has the beneficial effects that:
the petrochemical flare gas low-pressure high-heat value recovery device disclosed by the utility model does not need to adopt a gas holder to store the recovered gas, reduces the occupation of the device and the production operation maintenance cost, and can collect the flare recovered gas at the temperature exceeding 60 ℃ at the same time, so that the economical efficiency is high. The liquid level is established through the flare water sealed tank and is matched with the flare gas recovery component, so that the low-pressure, high-temperature and high-heat-value flare gas can be recovered.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a petrochemical flare gas low pressure high heat value recovery apparatus in accordance with one embodiment of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. In the description of the embodiments of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally put in use of the product of the application, or orientations or positional relationships that are conventionally understood by those skilled in the art, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The technical scheme of the utility model will be described below with reference to the accompanying drawings.
The embodiment provides a petrochemical engineering flare gas low pressure high calorific value recovery unit for connect production facility 101, torch 108, burn device 211, including with the flare liquid separation pot 103 of production facility 101 intercommunication, with the flare liquid seal pot 105 of flare liquid separation pot 103 intercommunication, and the flare gas recovery unit who communicates flare liquid separation pot 103 and burn device 211, the flare gas recovery unit comprises flare recovery pipeline 203, roots fan 206, control valve and instrument external member.
The recovery device does not need to adopt a gas holder to store the recovered gas, so that the occupation of the device and the production, operation and maintenance cost are reduced. The flare gas recovery assembly is matched with the flare gas recovery assembly to realize the recovery of low-pressure, high-temperature and high-heat-value flare gas by establishing the liquid level through the flare water sealed tank 105.
In this embodiment, the flare recovery line 203 is connected to the top of the flare solution tank 103.
The top of the flare gas separation tank 103 is provided with a flare gas recovery port 201, and the flare gas recovery pipeline 203 is connected to the flare gas recovery port 201, and since the liquid level is already established in the flare water-sealed tank 105, a system back pressure is formed in the flare gas recovery pipeline 203, so that the flare gas recovery assembly is ensured to continuously and stably operate under the system back pressure.
In this embodiment, the control valve and instrument set includes a split pressure detector 202 for detecting the flare split 103, and a line quick-closing valve 204 linked with the split pressure detector 202, wherein the line quick-closing valve 204 is used for closing the flare recovery line 203.
The liquid separating tank pressure detector 202 is arranged at the top of the liquid separating tank 103 of the torch, the liquid separating tank pressure detector 202 interlocks with the control pipeline quick-closing valve 204, the torch recovery pipeline 203 is cut off under the accident condition, the high-pressure gas is prevented from entering the torch recovery pipeline 203, the high-pressure gas breaks through the water seal height, the safety of the production device is effectively guaranteed due to the safety discharge of the torch gas.
In this embodiment, the control valve and the instrument suite include an output pressure detector 209 for detecting the output pressure of the Roots blower 206, and a blower backflow quick-opening valve 207 linked with the output pressure detector 209, where the blower backflow quick-opening valve 207 is connected to the input end and the output end of the Roots blower 206 through a blower backflow pipeline 208, and the blower backflow quick-opening valve 207 is used for opening the blower backflow pipeline 208.
The fan backflow quick-opening valve 207 and the output pressure detector 209 are in interlocking protection, when the pressure at the output end of the Roots fan 206 is overlarge, the quick-opening valve is opened, and part of high-pressure air output by the Roots fan 206 flows back to the Roots fan inlet, so that the pressure of flare gas entering the incineration device is reduced, and the stable operation of the incineration device 211 is ensured.
In this embodiment, the control valve and the instrument suite include an input pressure detector 205 for detecting the pressure of the input end of the Roots blower 206, and the input pressure detector 205 is linked with the Roots blower 206 for controlling the frequency of the Roots blower 206.
The Roots blower 206 realizes variable frequency control through the input pressure detector 205, and the operating power of the Roots blower 206 is regulated and controlled in real time according to the data of the input pressure detector 205. In addition, the input pressure detector 205 and the Roots blower 206 are also provided with low-low pressure interlocking protection, when the pressure of the input pressure detector 205 is too low, the Roots blower 206 stops running, and the Roots blower is used for preventing the air of the flare water sealed tank from being pumped in by the Roots blower when the pressure of the system is too low, and is mixed with flare gas to form explosive gas, so that the safe running of the Roots blower is ensured.
In this embodiment, the flare liquid separation tank 103 is communicated with the production facility 101 through the flare system pipe network 102, the flare liquid separation tank 103 is communicated with the flare water seal tank 105 through the flare main pipeline 104, and the flare water seal tank 105 is communicated with the flare 108 through the flare gas outlet pipeline 107. The Roots blower 206 communicates with the incinerator 211 through a recovery output line provided with a check valve 210.
The flare recovery line 203 branches from the flare gas main line at the top of the flare knock out tank 103, and operates independently of each other. When the flare system is in an accident state, the quick closing valve 204 cuts off the flare recovery pipeline 203, after high-temperature gas is discharged from the flare gas main pipeline, partial vacuum is easily formed in the flare recovery pipeline 203, and the one-way valve 210 is arranged, so that the influence on the incineration device 211 can be effectively avoided, and the stable operation of the incineration device 211 is ensured.
In this embodiment, the flare water sealed tank 105 is provided with a water seal height, the water seal height is 150-1000mm, and the preset system back pressure is less than 10kPaG.
The system back pressure is established through the flare water sealed tank 105, low-pressure, high-temperature and high-heat-value flare gas generated during normal production of the production device is treated, and meanwhile, safety interlocking protection is set, so that safety protection during flare gas accident emission is ensured.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a petrochemical flare gas low pressure high calorific value recovery unit for connect production facility, torch, burn the device, its characterized in that, including the flare liquid separation jar that communicates with production facility, with the flare water seal jar of flare liquid separation jar intercommunication, and the flare gas recovery unit who communicates flare liquid separation jar and burn the device, the flare gas recovery unit comprises flare recovery pipeline, roots fan, control valve and instrument external member.
2. The petrochemical flare gas low-pressure high-heating value recovery device according to claim 1, wherein the flare recovery pipeline is connected with the top of the flare liquid separation tank.
3. The petrochemical flare gas low-pressure high-calorific-value recovery device according to claim 1, wherein the control valve and instrument suite comprises a flare-dividing-tank pressure detector for detecting a flare-dividing-tank, and a pipeline quick-closing valve linked with the flare-dividing-tank pressure detector, and the pipeline quick-closing valve is used for closing a flare recovery pipeline.
4. The petrochemical flare gas low-pressure high-calorific-value recycling device according to claim 1, wherein the control valve and instrument suite comprises an output pressure detector for detecting the output end pressure of the Roots blower and a blower backflow quick-opening valve linked with the output pressure detector, the blower backflow quick-opening valve is connected to the input end and the output end of the Roots blower through a blower backflow pipeline, and the blower backflow quick-opening valve is used for opening the blower backflow pipeline.
5. The petrochemical flare gas low-pressure high-calorific-value recovery device according to claim 1, wherein the control valve and instrument suite comprises an input pressure detector for detecting the input end pressure of the Roots blower, and the input pressure detector is linked with the Roots blower and is used for controlling the frequency of the Roots blower.
6. The petrochemical flare gas low-pressure high-calorific-value recovery device according to claim 1, wherein the flare liquid separation tank is communicated with production equipment through a flare system pipe network.
7. The petrochemical flare gas low-pressure high-calorific-value recovery device according to claim 1, wherein the flare liquid separation tank is communicated with a flare water-sealed tank through a flare main pipeline.
8. The petrochemical flare gas low-pressure high-calorific-value recovery device according to claim 1, wherein the flare water-sealed tank is communicated with a flare through a flare gas outlet pipeline.
9. The petrochemical flare gas low-pressure high-calorific-value recycling device according to claim 1, wherein a water seal height is arranged in the flare water seal tank, and the water seal height is 150-1000mm.
10. The petrochemical flare gas low-pressure high-calorific-value recovery device according to claim 1, wherein the Roots blower is communicated with the incineration device through a recovery output pipeline, and the recovery output pipeline is provided with a one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320930452.4U CN219775759U (en) | 2023-04-23 | 2023-04-23 | Petrochemical torch gas low pressure high calorific value recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320930452.4U CN219775759U (en) | 2023-04-23 | 2023-04-23 | Petrochemical torch gas low pressure high calorific value recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219775759U true CN219775759U (en) | 2023-09-29 |
Family
ID=88108126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320930452.4U Active CN219775759U (en) | 2023-04-23 | 2023-04-23 | Petrochemical torch gas low pressure high calorific value recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219775759U (en) |
-
2023
- 2023-04-23 CN CN202320930452.4U patent/CN219775759U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106039915A (en) | Oil and gas recovery device and recovery method thereof | |
| CN110160065B (en) | Method for system for safely collecting and discharging low-pressure gas from storage tank VOCs | |
| CN110143379B (en) | Safety device of low-pressure gas system for discharging VOCs (volatile organic compounds) from storage tank | |
| CN111928119A (en) | Mine gas safety mixing system and gas mixing ratio control method | |
| CN103291268A (en) | Gas combined heat carrier generator system | |
| CN219775759U (en) | Petrochemical torch gas low pressure high calorific value recovery unit | |
| CN209011868U (en) | Fire extinguishing device | |
| CN216281438U (en) | Dimethyl ether flash distillation waste gas oxidation treatment device | |
| CN104964291B (en) | Suitable for the big regulation recovery method more direct than torch gas of industrial big flow and device | |
| CN113877372A (en) | Multistage absorption negative pressure oxidation treatment device of high concentration dimethyl ether flash distillation waste gas | |
| CN106681290B (en) | Intelligent analysis control processing recovery pre-control safety interlocking system for tank farm of oil depot | |
| CN107228279B (en) | Control method of integrated natural gas pipeline pressure test gas supply device | |
| CN212031995U (en) | Flash evaporation gas recovery integrated device | |
| CN203115497U (en) | Residual gas recovery device for liquefied natural gas tanker | |
| CN211109147U (en) | Safety and environment-friendly integrated protection system for large oil tank | |
| CN205877288U (en) | Waste oil of keeping apart can be realized and preceding water seal arrangement of alembic is retrieved | |
| US20190323464A1 (en) | Vent fuel handling assembly for a gas engine power plant and method of recovering vent fuel gas from a gas engine power plant | |
| CN113982532B (en) | Offshore platform flare gas recovery system and method | |
| CN206669333U (en) | A kind of biogas cooperates with air supply system with municipal natural gas | |
| US6045659A (en) | Device for recovery of excess gas in an oil/gas treatment plant | |
| JPS63247526A (en) | Recovery system for flare gas | |
| CN110562621B (en) | Light oil storage tank VOCs recovery system and recovery process | |
| EP1073861B1 (en) | Process plant | |
| CN110986061A (en) | Tar distillation tail gas incineration process and device | |
| CN220621945U (en) | Ultralow concentration gas pretreatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |