CN210229891U - Pressure relief system for reflux tank at top of light dydrocarbon tower - Google Patents
Pressure relief system for reflux tank at top of light dydrocarbon tower Download PDFInfo
- Publication number
- CN210229891U CN210229891U CN201920931440.7U CN201920931440U CN210229891U CN 210229891 U CN210229891 U CN 210229891U CN 201920931440 U CN201920931440 U CN 201920931440U CN 210229891 U CN210229891 U CN 210229891U
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- China
- Prior art keywords
- pipeline
- pressure
- valve
- light hydrocarbon
- storage tank
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- 238000010992 reflux Methods 0.000 title claims abstract description 24
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 44
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 44
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims description 24
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a take off light hydrocarbon top of tower backward flow jar pressure relief system, include: take off light hydrocarbon top of the tower backward flow jar and storage tank, wherein, take off and be provided with the pressure release mouth on the light hydrocarbon top of the tower backward flow jar, the pressure release mouth passes through first pipeline and is connected with the torch of removing sparks pipeline, the pressure release mouth passes through the second pipeline and is connected with the air inlet of storage tank, the pressure release mouth of storage tank passes through the third pipeline and is connected with the torch of removing sparks pipeline, be provided with first valve, second valve and third valve on first pipeline, second pipeline and the third pipeline respectively. The pressure relief system of the light hydrocarbon removal tower top reflux tank is reasonable in structure, the flow direction of pressure relief gas can be changed by opening and closing different valves, resources are saved, and environmental pollution is reduced.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field provides a take off light hydrocarbon top of tower backward flow jar pressure relief system very much.
Background
In the process of preparing isooctane by using mixed C4, light hydrocarbon removal is an important step, if the pressure of the light hydrocarbon removal tower rises in the process of removing light hydrocarbon by using the light hydrocarbon removal tower, the pressure of a return tank at the top of the light hydrocarbon removal tower rises, and in order to ensure the constancy of the top pressure of the light hydrocarbon removal tower, a pressure control valve of the return tank at the top of the light hydrocarbon removal tower is often required to be opened to release pressure to a flare pipeline, so that huge waste of resources is caused, and in addition, products after flare combustion can also cause pollution to the atmospheric environment.
Therefore, how to effectively utilize light hydrocarbon resources is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a take off light hydrocarbon top of tower return tank pressure relief system to solve the wasting of resources and the environmental pollution problem that current pressure-controlled process of putting on fire of taking off light hydrocarbon caused.
The utility model provides a technical scheme is: a light hydrocarbon removal overhead reflux drum pressure relief system, comprising: take off light hydrocarbon top of the tower backward flow jar and storage tank, wherein, take off and be provided with the pressure release mouth on the light hydrocarbon top of the tower backward flow jar, the pressure release mouth passes through first pipeline and is connected with the torch of removing sparks pipeline, the pressure release mouth passes through the second pipeline and is connected with the air inlet of storage tank, the pressure release mouth of storage tank passes through the third pipeline and is connected with the torch of removing sparks pipeline, be provided with first valve, second valve and third valve on first pipeline, second pipeline and the third pipeline respectively.
Preferably, the light hydrocarbon removal tower top reflux tank and the storage tank are respectively provided with a first pressure detection device and a second pressure detection device which are respectively used for detecting the internal pressure thereof.
Further preferably, the light dydrocarbon tower top reflux tank pressure relief system further comprises a controller, wherein the controller is respectively connected with the first valve, the second valve, the third valve, the first pressure detection device and the second pressure detection device and is used for controlling the on/off of the first valve, the second valve and the third valve according to the pressure information detected by the first pressure detection device and the second pressure detection device.
Further preferably, the light hydrocarbon removal tower top reflux tank pressure relief system further comprises an alarm connected with the controller and used for sending an alarm signal to the outside when the pressure value detected by the second pressure detection device reaches a preset pressure value.
Preferably, the storage tank is further provided with an air outlet connected with a civil liquefied gas pipeline, the air outlet is connected with the liquefied gas pipeline through a fourth pipeline, and the fourth pipeline is provided with a fourth valve connected with the controller.
Further preferably, the air inlet of the storage tank is arranged below the storage tank, and the pressure relief port is arranged above the storage tank.
The utility model provides a take off light hydrocarbon top of tower backward flow jar pressure relief system through increasing the storage tank, can collect by taking off light hydrocarbon top of tower backward flow jar pressure release combustion gas, and this gas can be used to civilian liquefied gas, can effectively save the resource, through setting up a plurality of valves, can switch according to different needs, the waste of furthest's reduction energy.
The utility model provides a take off light hydrocarbon top of tower backward flow jar pressure release system is rational in infrastructure, can change the gaseous flow direction of pressure release through opening and shutting different valves, saves the resource, reduces environmental pollution.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments:
FIG. 1 is a schematic structural view of a pressure relief system of a reflux drum at the top of a light hydrocarbon removal tower provided by the present invention;
fig. 2 is a control block diagram of the pressure relief system of the reflux tank at the top of the light hydrocarbon removal tower provided by the utility model.
Detailed Description
The invention will be further explained below with reference to specific embodiments, without limiting the invention.
As shown in fig. 1, the utility model provides a take off light hydrocarbon top of tower backward flow jar pressure relief system, include: take off light hydrocarbon top of the tower backward flow jar 1 and storage tank 2, wherein, take off and be provided with the pressure release mouth on the light hydrocarbon top of the tower backward flow jar 1, the pressure release mouth is connected with the torch of going sparks pipeline 4 through first pipeline 3, the pressure release mouth is connected with the air inlet of storage tank 2 through second pipeline 5, the pressure release mouth of storage tank 2 passes through third pipeline 6 and is connected with the torch of going sparks pipeline 4, be provided with first valve 31, second valve 51 and third valve 61 on first pipeline 3, second pipeline 5 and the third pipeline 6 respectively, preferred, the air inlet of storage tank 2 sets up in its below, and the pressure release mouth sets up in its top.
This take off light hydrocarbon top of tower backward flow jar pressure relief system through increasing the storage tank, can collect by taking off light hydrocarbon top of tower backward flow jar pressure release combustion gas, and this gas can be used to civilian liquefied gas, can effectively save the resource, through setting up a plurality of valves, can switch according to different needs, the waste of furthest's reduction energy.
As an improvement of the technical solution, as shown in fig. 1, a first pressure detection device 11 and a second pressure detection device 21 are respectively arranged on the light dydrocarbon removing tower top reflux tank 1 and the storage tank 2, and are respectively used for detecting internal pressures thereof.
As an improvement of the technical solution, as shown in fig. 2, the light hydrocarbon removal overhead reflux tank pressure relief system further includes a controller 7, and the controller 7 is connected to the first valve 31, the second valve 51, the third valve 61, the first pressure detection device 11, and the second pressure detection device 21, respectively, and is configured to control opening/closing of the first valve 31, the second valve 51, and the third valve 61 according to pressure information detected by the first pressure detection device 11 and the second pressure detection device 21, where the specific control logic is as follows:
presetting three pressure thresholds, wherein the first pressure threshold corresponds to a pressure relief threshold of a light hydrocarbon removal tower top reflux tank, the second pressure threshold and the third pressure threshold correspond to an inflation pressure threshold and a pressure relief threshold of a storage tank respectively, when the threshold detected by a first pressure detection device is larger than the first pressure threshold, the light hydrocarbon removal tower top reflux tank needs to be subjected to pressure relief, at the moment, if the pressure value detected by a second pressure detection device is smaller than the second pressure threshold, a second valve is opened, the gas decompressed by the light hydrocarbon removal tower top reflux tank is stored in the storage tank, liquefied gas can be used in the later period, if the pressure value detected by the second pressure detection device is larger than the second pressure threshold, the first valve is opened, the gas decompressed by the light hydrocarbon removal tower top reflux tank is directly sent to a flare pipeline and ignited, and if the pressure in a closed storage tank is increased to the third pressure threshold, a controller opens the third valve, the storage tank is decompressed, and the decompressed gas is ignited by a fire-removing torch pipeline.
Preferably, the storage tank is replaceable, and when the charged gas reaches a certain pressure or reaches a certain weight, the storage tank is replaced from the system by an empty storage tank, and the storage tank is used as a mobile liquefied gas tank, as an improvement of the technical scheme, as shown in fig. 2, the pressure relief system of the top reflux tank of the light hydrocarbon removal tower further comprises an alarm 9 connected with the controller 7, when the pressure detected by the second pressure detection device 21 reaches a second pressure threshold, the controller 7 controls the alarm 9 to alarm to remind the outside of replacing the storage tank, wherein the alarm is preferably fixed near the storage tank.
As an improvement of the technical solution, as shown in fig. 1 and 2, the storage tank 2 is further provided with an air outlet connected with a civil liquefied gas pipeline, the air outlet is connected with the liquefied gas pipeline through a fourth pipeline 8, the fourth pipeline 8 is provided with a fourth valve 81 connected with the controller 7, and the controller can control the on/off of the fourth valve.
The embodiments of the present invention are written in a progressive manner, emphasizing the differences of the various embodiments, and similar parts can be referred to each other.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. Take off light hydrocarbon top of tower reflux drum pressure relief system, its characterized in that includes: take off light hydrocarbon top of the tower backward flow jar (1) and storage tank (2), wherein, take off and be provided with the pressure release mouth on light hydrocarbon top of the tower backward flow jar (1), the pressure release mouth is connected with removing torch pipeline (4) through first pipeline (3), the pressure release mouth passes through second pipeline (5) and is connected with the air inlet of storage tank (2), the pressure release mouth of storage tank (2) passes through third pipeline (6) and is connected with removing torch pipeline (4), be provided with first valve (31), second valve (51) and third valve (61) on first pipeline (3), second pipeline (5) and third pipeline (6) respectively.
2. The light hydrocarbon removal tower top reflux tank pressure relief system of claim 1, wherein: and a first pressure detection device (11) and a second pressure detection device (21) are respectively arranged on the light dydrocarbon tower top reflux tank (1) and the storage tank (2) and are respectively used for detecting the internal pressure of the light dydrocarbon tower top reflux tank.
3. The light hydrocarbon removal tower top reflux tank pressure relief system of claim 2, wherein: the pressure control device is characterized by further comprising a controller (7), wherein the controller (7) is respectively connected with the first valve (31), the second valve (51), the third valve (61), the first pressure detection device (11) and the second pressure detection device (21) and is used for controlling the first valve (31), the second valve (51) and the third valve (61) to be opened or closed according to pressure information detected by the first pressure detection device (11) and the second pressure detection device (21).
4. The light hydrocarbon removal tower top reflux tank pressure relief system of claim 3, wherein: the pressure sensor also comprises an alarm (9) connected with the controller (7) and used for sending an alarm signal to the outside when the pressure value detected by the second pressure detection device (21) reaches a preset pressure value.
5. The light hydrocarbon removal tower top reflux tank pressure relief system of claim 3, wherein: the storage tank (2) is further provided with an air outlet connected with a civil liquefied gas pipeline, the air outlet is connected with the liquefied gas pipeline through a fourth pipeline (8), and a fourth valve (81) connected with the controller (7) is arranged on the fourth pipeline (8).
6. The light hydrocarbon removal tower top reflux tank pressure relief system of claim 1, wherein: the air inlet of the storage tank (2) is arranged below the storage tank, and the pressure relief port is arranged above the storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931440.7U CN210229891U (en) | 2019-06-20 | 2019-06-20 | Pressure relief system for reflux tank at top of light dydrocarbon tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931440.7U CN210229891U (en) | 2019-06-20 | 2019-06-20 | Pressure relief system for reflux tank at top of light dydrocarbon tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210229891U true CN210229891U (en) | 2020-04-03 |
Family
ID=69986767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920931440.7U Expired - Fee Related CN210229891U (en) | 2019-06-20 | 2019-06-20 | Pressure relief system for reflux tank at top of light dydrocarbon tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210229891U (en) |
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2019
- 2019-06-20 CN CN201920931440.7U patent/CN210229891U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure relief system of overhead reflux tank of light hydrocarbon removal tower Effective date of registration: 20210421 Granted publication date: 20200403 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: Liaoning Yifang Petrochemical Co.,Ltd. Registration number: Y2021210000019 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220427 Granted publication date: 20200403 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: Liaoning Yifang Petrochemical Co.,Ltd. Registration number: Y2021210000019 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure relief system of overhead reflux drum of light hydrocarbon removal tower Effective date of registration: 20220505 Granted publication date: 20200403 Pledgee: Panjin financing guarantee Group Co.,Ltd. Pledgor: Liaoning Yifang Petrochemical Co.,Ltd. Registration number: Y2022210000034 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230601 Granted publication date: 20200403 Pledgee: Panjin financing guarantee Group Co.,Ltd. Pledgor: Liaoning Yifang Petrochemical Co.,Ltd. Registration number: Y2022210000034 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure relief system for overhead reflux tank of light hydrocarbon removal tower Effective date of registration: 20230606 Granted publication date: 20200403 Pledgee: Panjin financing guarantee Group Co.,Ltd. Pledgor: Liaoning Yifang Petrochemical Co.,Ltd. Registration number: Y2023210000135 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 |