CN207943418U - A kind of pressure of storage tank control device - Google Patents
A kind of pressure of storage tank control device Download PDFInfo
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- CN207943418U CN207943418U CN201820841671.4U CN201820841671U CN207943418U CN 207943418 U CN207943418 U CN 207943418U CN 201820841671 U CN201820841671 U CN 201820841671U CN 207943418 U CN207943418 U CN 207943418U
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- pressure
- storage tank
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- valve
- regulating valve
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Abstract
The utility model discloses a kind of pressure of storage tank control devices, are related to petroleum technology field.The device includes：First pipeline, the second pipeline, third pipeline, controller, pressure transmitter, first pressure regulating valve and second pressure regulating valve.Pressure of storage tank control device provided by the utility model, loss through breathing can be reduced, the pressure in pipeline is detected by pressure transmitter, and the pressure in storage tank is adjusted by first pressure regulating valve and second pressure regulating valve, whole process is completed under closed environment, and the gas in storage tank is not swapped with the external world, avoids the environment of the oil vapour given off pollution ambient atmosphere, loss through breathing can be reduced simultaneously, is increased economic efficiency.
Description
Technical field
The utility model is related to petroleum technology field more particularly to a kind of pressure of storage tank control devices.
Background technology
Due to there is factors such as technology, technique, equipment, management, China's oil, petrochemical industry storing and transporting system there are still
The loss through breathing of more serious oil product.To reduce loss through breathing, the mode of domestic generally use oil abhiseca setting breather valve is flat
Weigh pressure inside the tank.
However breather valve directly carries out gas exchanges with extraneous air, the oil vapour given off during this can pollute surrounding
The environment of air may cause centainly to threaten especially when crude oil sulfur-bearing or other toxicity boil-off gas to the safety of personnel.
Utility model content
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, to provide a kind of pressure of storage tank control
Device.
The technical solution that the utility model solves above-mentioned technical problem is as follows：
A kind of pressure of storage tank control device, including：First pipeline, the second pipeline, third pipeline, controller, pressure inverting
One end of device, first pressure regulating valve and second pressure regulating valve, first pipeline is connected to storage tank, first pipeline
The other end is connected to one end of one end of second pipeline and the third pipeline respectively, the other end of second pipeline with
Storage has the first hermetically sealed can of blanket gas to be connected to, the other end of the third pipeline and the second sealing for storing discharge gas
Tank is connected to；
The controller respectively with the pressure transmitter, the first pressure regulating valve and the second pressure regulating valve
Connection, the pressure transmitter are arranged in first pipeline, and the first pressure regulating valve is arranged in second pipeline
Interior, the second pressure regulating valve is arranged in the third pipeline.
The utility model has the beneficial effects that：Pressure of storage tank control device provided by the utility model, can reduce breathing
Loss, is detected the pressure in pipeline by pressure transmitter, and is adjusted by first pressure regulating valve and second pressure
The pressure in storage tank is adjusted in valve, and whole process is completed under closed environment, the gas in storage tank not with outside
Boundary swaps, and avoids the environment of the oil vapour given off pollution ambient atmosphere, while can reduce loss through breathing, improves economical
Benefit.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram that one embodiment of pressure of storage tank control device provides of the utility model.
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, being a kind of structural representation that one embodiment of pressure of storage tank control device provides of the utility model
Figure, pressure of storage tank control device include：First pipeline 1, the second pipeline 2, third pipeline 3, controller 4, pressure transmitter 5,
One end of one pressure-regulating valve 6 and second pressure regulating valve 7, the first pipeline 1 is connected to storage tank, the other end point of the first pipeline 1
It is not connected to one end of one end of the second pipeline 2 and third pipeline 3, the other end of the second pipeline 2 and storage have the of blanket gas
One hermetically sealed can 15 is connected to, and the other end of third pipeline 3 is connected to the second hermetically sealed can 16 for storing discharge gas；
Controller 4 is connect with pressure transmitter 5, first pressure regulating valve 6 and second pressure regulating valve 7 respectively, and pressure becomes
Device 5 is sent to be arranged in the first pipeline 1, first pressure regulating valve 6 is arranged in the second pipeline 2, and the setting of second pressure regulating valve 7 exists
In third pipeline 3.
It should be noted that the first pipeline 1 is connected to the tank deck of storage tank, it is convenient for air to be escaped from tank deck in this way.It should be understood that
First pipeline 1 and tank deck are tightly connected, for example, can be by modes such as welding, by the opening of the first pipeline 1 and storage tank tank deck
Then open butt joint is welded.It is appreciated that realize that the leakproofness of entire pressure control device, other junctions are also sealing
Connection, specific connection type similarly, repeat no more.
It should be understood that controller 4 is controlled according to the pressure of pressure transmitter 5, there is no improve.Those skilled in the art
Can the relationship between pressure and regulating valve be set by the experiment of limited number of time or according to practical experience.For example, when the pressure of storage tank
When power becomes larger, the aperture of the second regulating valve is increased, pressure can be reduced, when the change of the pressure of storage tank is small, by the first regulating valve
Aperture increase, pressure can be increased, these are the empirical values in actual production operating process, and need not improve can obtain.
These parameters being specifically arranged can only influence the effect of this pressure control device, rather than realize that the object of the invention institute is essential
's.
For example, according to pressure control principle in the prior art or pressure control device, the controlling party that can be controlled
Formula can be achieved by the prior art completely.
As it can be seen that there is no improve for this correspondence.That is, controller 4 controls first pressure according to pressure data
Regulating valve 6 and second pressure regulating valve 7 belong to the prior art, wherein any improvement is not present, can pass through existing controlling party
Method is realized.
The workflow of this pressure control device is illustrated below.
It should be understood that for ease of those skilled in the art understand that the pressure control device workflow, only give below
A kind of possible application method of the device, not representing the application method of the device, there is also improvement.
When storage tank oil inlet or since ambient temperature increases, and then gas expansion or crude oil gasification lead to pressure inside the tank in storage tank
When rising and being higher than setting value, gas is discharged into the downstream line being tightly connected with it by pressure control device and returned automatically in storage tank
It receives.When in storage tank crude oil be pumped out or due to ambient temperature reduce, and then in storage tank contraction of gas or condensation cause in storage tank
When pressure declines and is less than setting value, tonifying Qi is carried out to storage tank by blanket gas, air is prevented to enter.
Optionally, common blanket gas includes nitrogen, natural gas etc..
Preferably, it is contemplated that the associated gas that the property of crude oil and the crude oil that enters the station are isolated in storage tank is more, and natural gas is made
It is more convenient and economical for blanket gas.
Specifically, when pressure transmitter 5 detects the pressure in storage tank, pressure signal is sent to controller 4, works as storage
When tank pressure inside the tank is less than setting value, first pressure regulating valve 6 is automatically opened, the blanket gas in the first hermetically sealed can 15 is transported to
In storage tank, tonifying Qi is carried out to storage tank, pressure inside the tank is gradually increasing；When storage tank pressure inside the tank is higher than setting value, the is automatically opened
Two pressure-regulating valves 7 are exhausted in the oil-gas transportation in storage tank to the second hermetically sealed can 16 storage tank, pressure inside the tank is gradual
Decline.
Preferably, pressure transmitter 5 can be two, be separately positioned at the different location of the first pipeline 1, convenient for improving
The accuracy of the pressure detected.
Pressure of storage tank control device provided in this embodiment, can reduce loss through breathing, by pressure transmitter 5 to pipeline
Interior pressure is detected, and is adjusted to the pressure in storage tank by first pressure regulating valve 6 and second pressure regulating valve 7
Section, whole process is completed under closed environment, and the gas in storage tank is not swapped with the external world, avoids giving off
Oil vapour pollutes the environment of ambient atmosphere, while can reduce loss through breathing, increases economic efficiency.
Optionally, in some embodiments, can also include：The tank deck in storage tank is arranged in escape orifice 14, escape orifice 14.
It should be noted that when fire occurs, pressure inside the tank quickly increases, and by pressure control device or exhales
Extra oil gas cannot be discharged in time by inhaling valve, then escape orifice 14 can be opened instantaneously, ensure safety.
Optionally, in some embodiments, controller 4 can be PLC programmable controller.
Optionally, in some embodiments, can also include：First breather valve 8, the first breather valve 8 are arranged in storage tank
Tank deck.
Optionally, in some embodiments, can also include：Second breather valve 9, the second breather valve 9 are arranged in storage tank
Tank deck.
It should be noted that the connection type of the first breather valve 8 and the second breather valve 9 and storage tank is the prior art, herein
It repeats no more.
If after exhaust, pressure inside the tank still persistently increases, and when more than the set point of the first breather valve 8 and the second breather valve 9,
First breather valve 8 and the second breather valve 9 are gradually opened, and discharge pressure inside the tank, avoid that swell accident occurs；If after tonifying Qi, in tank
Pressure still persistently reduces, and when less than the set point of the first breather valve 8 and the second breather valve 9, the breathing of the first breather valve 8 and second
Valve 9 is gradually opened, and is balanced pressure inside the tank, is avoided that flat tank accident occurs.
Optionally, in some embodiments, can also include：First control valve 10 and the first shut-off valve 11, the first control
Valve 10 and the first shut-off valve 11 are connected between first pressure regulating valve 6 and the first hermetically sealed can 15.
Optionally, in some embodiments, can also include：Second control valve 12 and the second shut-off valve 13, the second control
Valve 12 and the second shut-off valve 13 are connected between second pressure regulating valve 7 and the second hermetically sealed can 16.
Preferably, the first control valve 10 and the second control valve 12 can be whole-through diameter ball valve.
It should be noted that the first control valve 10 and the second control valve 12 are in the operational process of pressure control device
Normally open closes the first control valve 10 and the second control valve 12 when needing maintenance, opens the first shut-off valve 11 and second section
Only valve 13.
The pressure of storage tank control device provided through this embodiment, can make storage tank remain at the state of micro-positive pressure
Under, avoid the first breather valve 8 of tank top, the second breather valve 9 from frequently occurring to exhale and be vented with ambient enviroment, reduction due to
The possibility that electrostatic causes an explosion accident, while reducing the pollution of environment.
In the description of this specification, reference term " embodiment one ", " embodiment two ", " example ", " specific example " or
The description of " some examples " etc. means that specific method, device or feature described in conjunction with this embodiment or example are contained in this reality
With in novel at least one embodiment or example.
In the present specification, a schematic expression of the above terms does not necessarily refer to the same embodiment or example.
Moreover, specific features, method, apparatus or the feature of description can be in any one or more of the embodiments or examples with suitable
Mode combines.
In addition, without conflicting with each other, those skilled in the art can be by difference described in this specification
The feature of embodiment or example and different embodiments or examples is combined.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of pressure of storage tank control device, which is characterized in that including：First pipeline, the second pipeline, third pipeline, controller,
One end of pressure transmitter, first pressure regulating valve and second pressure regulating valve, first pipeline is connected to storage tank, and described
The other end of one pipeline is connected to one end of one end of second pipeline and the third pipeline respectively, second pipeline
The other end has the first hermetically sealed can of blanket gas to be connected to storage, and gas is discharged with for storing in the other end of the third pipeline
Second hermetically sealed can is connected to；
The controller connects with the pressure transmitter, the first pressure regulating valve and the second pressure regulating valve respectively
It connecing, the pressure transmitter is arranged in first pipeline, and the first pressure regulating valve is arranged in second pipeline,
The second pressure regulating valve is arranged in the third pipeline.
2. pressure of storage tank control device according to claim 1, which is characterized in that further include：Escape orifice, the escape orifice
Tank deck in the storage tank is set.
3. pressure of storage tank control device according to claim 1, which is characterized in that the controller is PLC programmable controls
Device processed.
4. pressure of storage tank control device according to claim 1, which is characterized in that further include：First breather valve, described
The tank deck in the storage tank is arranged in one breather valve.
5. pressure of storage tank control device according to claim 1, which is characterized in that further include：Second breather valve, described
The tank deck in the storage tank is arranged in two breather valves.
6. pressure of storage tank control device according to any one of claim 1 to 5, which is characterized in that further include：First control
Valve processed and the first shut-off valve, first control valve and first shut-off valve be connected to the first pressure regulating valve with it is described
Between first hermetically sealed can.
7. pressure of storage tank control device according to any one of claim 1 to 5, which is characterized in that further include：Second control
Valve processed and the second shut-off valve, second control valve and second shut-off valve be connected to the second pressure regulating valve with it is described
Between second hermetically sealed can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820841671.4U CN207943418U (en) | 2018-05-31 | 2018-05-31 | A kind of pressure of storage tank control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820841671.4U CN207943418U (en) | 2018-05-31 | 2018-05-31 | A kind of pressure of storage tank control device |
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| Publication Number | Publication Date |
|---|---|
| CN207943418U true CN207943418U (en) | 2018-10-09 |
Family
ID=63695987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820841671.4U Active CN207943418U (en) | 2018-05-31 | 2018-05-31 | A kind of pressure of storage tank control device |
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| CN (1) | CN207943418U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086784A (en) * | 2019-12-18 | 2020-05-01 | 浙江信汇新材料股份有限公司 | Automatic pressure supplementing and relieving process system for low-pressure tank of normal-pressure tank |
| CN112429418A (en) * | 2020-11-04 | 2021-03-02 | 中国石油天然气集团有限公司 | Treatment system for volatile organic compounds in storage tank |
| CN112623536A (en) * | 2020-12-25 | 2021-04-09 | 大连理工大学环境工程设计研究院有限公司 | Interlocking method for controlling pressure of storage tank |
-
2018
- 2018-05-31 CN CN201820841671.4U patent/CN207943418U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086784A (en) * | 2019-12-18 | 2020-05-01 | 浙江信汇新材料股份有限公司 | Automatic pressure supplementing and relieving process system for low-pressure tank of normal-pressure tank |
| CN111086784B (en) * | 2019-12-18 | 2022-04-08 | 浙江信汇新材料股份有限公司 | Automatic pressure supplementing and relieving process system for low-pressure tank of normal-pressure tank |
| CN112429418A (en) * | 2020-11-04 | 2021-03-02 | 中国石油天然气集团有限公司 | Treatment system for volatile organic compounds in storage tank |
| CN112429418B (en) * | 2020-11-04 | 2023-02-24 | 中国石油天然气集团有限公司 | Treatment system for volatile organic compounds in storage tank |
| CN112623536A (en) * | 2020-12-25 | 2021-04-09 | 大连理工大学环境工程设计研究院有限公司 | Interlocking method for controlling pressure of storage tank |
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Effective date of registration: 20210324 Address after: 100120 No.6 liupukang street, Xicheng District, Beijing Patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: BEIJING DWELL PETROLEUM & GAS TECHNOLOGY DEVELOPMENT Co.,Ltd. Patentee after: China National Petroleum Corporation Engineering Design Co.,Ltd. Address before: 100085 room 301-303, 3 / F, block B, No.22, Shangdi Information Road, Haidian District, Beijing Patentee before: BEIJING DESIGN BRANCH OF CHINA PETROLEUM ENGINEERING CONSTRUCTION Co.,Ltd. |