CN208011286U - Gas-phase apparatus is recycled in propylene tank water filling - Google Patents
Gas-phase apparatus is recycled in propylene tank water filling Download PDFInfo
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- CN208011286U CN208011286U CN201820434539.1U CN201820434539U CN208011286U CN 208011286 U CN208011286 U CN 208011286U CN 201820434539 U CN201820434539 U CN 201820434539U CN 208011286 U CN208011286 U CN 208011286U
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- storage tank
- control valve
- tank
- propylene
- gas
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Abstract
The utility model discloses a kind of propylene tank water fillings to recycle gas-phase apparatus, including multiple propylene tanks and water injecting pump, the abhiseca of each storage tank is provided with outlet, the outlet of each storage tank is connected by exhaust line and control valve with torch, it is connected by vapor delivery line and control valve between the outlet of each two storage tank, the tank bottom of each storage tank is provided with entrance, the entrance of each storage tank is connected by waterflood-transmission line and control valve with water injecting pump, the entrance of each storage tank is additionally provided with nitrogen interface, the nitrogen interface is connected by control valve with Nitrogen pipe network, the entrance of the water injecting pump is connected by control valve with high pressure water injection pipe network, the outlet of the water injecting pump is provided with control valve.The gaseous phase materials in storage tank to be detected are pressed into other storage tanks by the way of the water filling pressurization into storage tank, the amount discharged to torch pressure release is reduced and reduces inert gas replacement process using the compressibility of gaseous phase materials by above-mentioned setting.
Description
Technical field
The utility model is related to pressure vessel technical fields, and the dress of gas phase is recycled more particularly to a kind of propylene tank water filling
It sets.
Background technology
Pressure vessel is to be used for storing the steel with transport liquid or Gaseous materials in petroleum refining industry and petrochemical industry
The periodic inspection of container, pressure vessel is an essential important process in storage and transportation work, and ensures safety in production
Premise.Propylene tank is the pressure vessel for storing and transporting propylene, and propylene tank needs first before carrying out periodic inspection
Gas-phase propene in storage tank and pipeline is emptied, in the prior art, is typically passed through the gaseous phase materials in storage tank to be detected
The pressure in tank is let out to zero to the mode of torch facility pressure release and burning, after the completion of pressure release, then will be in tank using inert gas
Imflammable gas replace to concentration < 2%, then carry out the blind plate isolation of pipeline, then open the manhole of storage tank and be aerated inspection
It tests.This method has the following disadvantages：1. a large amount of gaseous phase materials are immediately discharged to torch and do burning processing, great wave is caused
Take；2. a large amount of inert gases need to be used, which to carry out repeatedly displacement, could meet combustible gas discharge standard, cost is higher；3. combustion tail gas
Environment can be damaged.
Utility model content
In view of the above technical problems, the purpose of this utility model is to provide a kind of propylene tank water filling recycling gas-phase apparatus,
Using the compressibility of gas, the gaseous phase materials in storage tank to be detected are pressed to other by the way of the water filling pressurization into storage tank
Storage tank reduces the amount discharged to torch pressure release and reduces inert gas replacement process.
In order to achieve the above objectives, a technical solution of the utility model use is：A kind of propylene tank water filling time is provided
Gas-phase apparatus, including multiple propylene tanks and water injecting pump are received,
The tank deck of each storage tank is provided with outlet, and the outlet of each storage tank passes through exhaust line and control valve
It is connected with torch, is connected by gas-liquid equilibrium pipeline and control valve between the outlet of each two storage tank,
The tank bottom of each storage tank is provided with entrance, and the entrance of each storage tank passes through waterflood-transmission line and control valve
It is connected with water injecting pump, the entrance of each storage tank is additionally provided with nitrogen interface, and the nitrogen interface passes through control valve and nitrogen
Gas pipe network is connected,
The entrance of the water injecting pump is connected by control valve with high pressure water injection pipe network, and the outlet of the water injecting pump is provided with
Control valve.
Preferably, it is both provided with pressure monitoring device on each storage tank.
Preferably, it is both provided with liquid level gauge on each storage tank.
Preferably, the pressure of supply water of the high pressure water injection pipe network is not less than 0.7MPa.
Preferably, the entrance of each storage tank is additionally provided with blind plate.
The utility model has the beneficial effects that：Using the compressibility of gaseous phase materials, using the water filling pressurization into storage tank
Gaseous phase materials in storage tank to be tested are pressed to other storage tanks by mode, when reducing storage tank periodic inspection the loss of gaseous phase materials and
The inert gas consumption of process, reduces cost and discharge before examining.
Description of the drawings
Fig. 1 is the principle schematic of one preferred embodiment of the utility model；
The label of each component is as follows in attached drawing：1,1# Propylene Spherical Tanks, 2,2# Propylene Spherical Tanks, 3,3# Propylene Spherical Tanks, 4,4# third
Alkene spherical tank, 5, water injecting pump, 6, exhaust line, 7, torch, 8, gas-liquid equilibrium pipeline, 9, waterflood-transmission line, 10, control valve nine, 11,
Control valve one, 12, control valve two, 13, control valve three, 14, control valve four, 15, control valve five, 16, control valve
Door six, 17, control valve seven, 18, control valve eight, 19, blind plate one, 20, blind plate two, 21, blind plate three, 22, blind plate four, 23 notes
Grid.
Specific implementation mode
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear to be made to the scope of protection of the utility model
Define.
Referring to Fig. 1, the utility model embodiment includes：1# Propylene Spherical Tanks 1,2# Propylene Spherical Tanks 2,3# Propylene Spherical Tanks 3,4#
The tank deck of Propylene Spherical Tanks and water injecting pump 5,1#~4# Propylene Spherical Tanks is respectively arranged with outlet, the outlet point of each spherical tank
It is not connected with torch 7 by exhaust line 6 and control valve, passes through gas-liquid equilibrium pipeline between the outlet of each two spherical tank
8 and control valve connection,
The tank bottom of each spherical tank is provided with entrance, and the entrance of each spherical tank passes through waterflood-transmission line 9 and water injecting pump 5
It connects, control valve 1, control valve 2 12, control is respectively arranged on the waterflood-transmission line 9 of 1#~4# spherical tanks entrance
The entrance of valve 3 13 and control valve 4 14, each spherical tank is additionally provided with nitrogen interface, the nitrogen of 1#~4# spherical tanks
Gas interface passes through control valve 5 15, control valve 6 16, control valve 7 17 and control valve 8 18 and Nitrogen pipe network respectively
It is connected,
The entrance of the water injecting pump 5 is connect by control valve with high pressure water injection pipe network 23, and the outlet of the water injecting pump 5 is also
It is provided with control valve 9 10, the entrance of 1#~4# spherical tanks is also respectively provided with blind plate 1, blind plate 2 20, blind plate 3 21
And blind plate 4 22, pressure monitoring device and liquid level gauge are both provided on each spherical tank.
The gas-phase propene water filling removal process of the present embodiment includes the following steps：
One, 2# Propylene Spherical Tanks 2 are set to pre- water injection tank, by the raffinate in 2# Propylene Spherical Tanks down to other each spherical tanks；
Two, it sets the blind plate 20 of 2 tank bottom of 2# Propylene Spherical Tanks to blind off status, opens the gas-liquid equilibrium pipe of each spherical tank tank deck
2# Propylene Spherical Tanks 2 and remaining each spherical tank are carried out concora crush, after pressure balance, open 2# Propylene Spherical Tanks 2 by the control valve on line
Control valve 2 12 on the waterflood-transmission line 9 of tank bottom and control valve 9 10 start water filling from water injecting pump 5 to 2# Propylene Spherical Tanks 2；
Three, with the rising of water filling liquid level in 2# Propylene Spherical Tanks 2, gas-phase space reduction can cause inside 2# Propylene Spherical Tanks 2
Pressure rise, gas-phase propene is recycled to 1# Propylene Spherical Tanks 1,3# Propylene Spherical Tanks 3 and 4# Propylene Spherical Tanks by gas-liquid equilibrium pipeline 8
4；
If four, the liquid level inside 2# Propylene Spherical Tanks 2 no longer rises and the safety levels of not up to setting, immediately stopping are noted
Water stops water filling if liquid level rises always after reaching safety levels, to prevent the too fast gas-liquid equilibrium pipeline into spherical tank of water filling
Inside 8；
Five, as the pressure rise inside spherical tank, gas-phase propene can liquefy to form liquid propylene, liquid propylene amount gradually increases
Add, close the control valve of the gas-liquid equilibrium pipeline 8 between each spherical tank, slowly opens the exhaust line 6 of 2 abhiseca of 2# Propylene Spherical Tanks
On control valve, to 2# Propylene Spherical Tanks 2 carry out pressure release；
Six, when 2# Propylene Spherical Tanks internal pressure relief to micro-positive pressure, the control valve 6 16 of tank bottom is opened, nitrogen is passed through into tank
Gas, air supporting 10~24 hours empty the free propylene in water；
Seven, after completing air supporting, analysis is detected to the water quality in 2# Propylene Spherical Tanks 2, such as water quality detection qualification, is then opened
Water is discharged into open channel by the water discharging valve of tank bottom, if water quality detection is unqualified, then water is discharged into sewage lifting pond；
Eight, after the water in 2# Propylene Spherical Tanks 2 empties, unit check is handed over again after nitrogen displacement pressure release qualification need to be carried out；
Nine, then 1# Propylene Spherical Tanks 1 are set to pre- water injection tank, repeated the above steps, by the gas phase in 1# Propylene Spherical Tanks 1
Propylene pours into 3# Propylene Spherical Tanks 3 and 4# Propylene Spherical Tanks 4；
Ten, finally to 3# Propylene Spherical Tanks 3 and the water filling simultaneously of 4# Propylene Spherical Tanks 4, by 3# Propylene Spherical Tanks 3 and 4# Propylene Spherical Tanks 4
Internal gas-phase propene pours into 2# Propylene Spherical Tanks 2, and is transported for use by transport vehicle.
Meanwhile the gas-phase propene water filling removal process of the utility model embodiment may be arranged as：Choose 1#~4# third
Any one spherical tank in alkene spherical tank is as gas phase recycling can, and excess-three is used as pre- water injection tank, simultaneously to three pre- water injection tanks
Gas-phase propene therein is recycled to that gas phase recycling can is for use by water filling, and the amount of selected pre- water injection tank depends on injection pipe network 23
Pressure and the process conditions of water injecting pump 5 determine.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (5)
1. gas-phase apparatus is recycled in a kind of propylene tank water filling, which is characterized in that described every including multiple propylene tanks and water injecting pump
The tank deck of a storage tank is provided with outlet, and the outlet of each storage tank is connected by exhaust line and control valve with torch, institute
It states and is connected by gas-liquid equilibrium pipeline and control valve between the outlet of each two storage tank, the tank bottom of each storage tank is provided with
The entrance of entrance, each storage tank is connected by waterflood-transmission line and control valve with water injecting pump, the entrance of each storage tank
It is additionally provided with nitrogen interface, the nitrogen interface is connected by control valve with Nitrogen pipe network, and the entrance of the water injecting pump passes through
Control valve is connected with high pressure water injection pipe network, and the outlet of the water injecting pump is provided with control valve.
2. gas-phase apparatus is recycled in propylene tank water filling according to claim 1, which is characterized in that on each storage tank
It is provided with pressure monitoring device.
3. gas-phase apparatus is recycled in propylene tank water filling according to claim 1, which is characterized in that on each storage tank
It is provided with liquid level gauge.
4. gas-phase apparatus is recycled in propylene tank water filling according to claim 1, which is characterized in that the high pressure water injection pipe network
Pressure of supply water be not less than 0.7MPa.
5. gas-phase apparatus is recycled in propylene tank water filling according to claim 1, which is characterized in that each storage tank enters
Mouth is additionally provided with blind plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820434539.1U CN208011286U (en) | 2018-03-29 | 2018-03-29 | Gas-phase apparatus is recycled in propylene tank water filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820434539.1U CN208011286U (en) | 2018-03-29 | 2018-03-29 | Gas-phase apparatus is recycled in propylene tank water filling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208011286U true CN208011286U (en) | 2018-10-26 |
Family
ID=63891089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820434539.1U Active CN208011286U (en) | 2018-03-29 | 2018-03-29 | Gas-phase apparatus is recycled in propylene tank water filling |
Country Status (1)
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| CN (1) | CN208011286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188038A (en) * | 2021-05-27 | 2021-07-30 | 聊城鲁西多元醇新材料科技有限公司 | Liquefied hydrocarbon storage tank replacement gas recovery device and method and application thereof |
-
2018
- 2018-03-29 CN CN201820434539.1U patent/CN208011286U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188038A (en) * | 2021-05-27 | 2021-07-30 | 聊城鲁西多元醇新材料科技有限公司 | Liquefied hydrocarbon storage tank replacement gas recovery device and method and application thereof |
| CN113188038B (en) * | 2021-05-27 | 2023-02-21 | 聊城鲁西多元醇新材料科技有限公司 | Liquefied hydrocarbon storage tank replacement gas recovery device and method and application thereof |
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