CN106523896A - Underground pressure-stabilized gas storage device with built-in water storage container - Google Patents
Underground pressure-stabilized gas storage device with built-in water storage container Download PDFInfo
- Publication number
- CN106523896A CN106523896A CN201610940621.7A CN201610940621A CN106523896A CN 106523896 A CN106523896 A CN 106523896A CN 201610940621 A CN201610940621 A CN 201610940621A CN 106523896 A CN106523896 A CN 106523896A
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- Prior art keywords
- liquid
- storage container
- container
- water storage
- water
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
- F17B1/12—Gas admission or discharge arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
- F17B1/14—Safety devices, e.g. prevention of excess pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/16—Gas-holders of variable capacity of wet type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0128—Shape spherical or elliptical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention belongs to the field of underground gas storage, and discloses an underground pressure-stabilized gas storage device with a built-in water storage container, and a pressure stabilization control technology thereof. The water storage container is located inside the underground gas storage container. The lower portion of the water storage container is closed, and the upper portion of the water storage container communicates with a gas storage container. One end of a liquid pipeline penetrates through the wall of the gas storage container to be connected to the bottom of the water storage container, and the other end of the liquid pipeline is connected to one end of a liquid drive device; and the other end of the liquid drive device is connected with an outer water storage device. One end of a gas pipeline is connected with the gas storage container, and the other end of the gas pipeline is connected with an outer pneumatic device; and the outer pneumatic device injects compressed air into the gas storage container or guides the compressed air out of the gas storage container. The pressure stabilization control scheme has the following two control targets of (1) the pressure intensity of gas in the gas storage container, and (2) the difference of the pressure intensity of liquid at the two ends of the liquid drive device. The water storage container is arranged in the underground gas storage device, direct contact between water and the inner wall of the gas storage container is avoided, and an implement mode is provided for soluble salt cavern gas storage and gas storage adopting a metal container which is prone to corrosion of water; and meanwhile, the pressure stabilization control scheme is adopted for facilitating safe and stable operation of the gas storage device.
Description
Technical field
The present invention relates to underground gas storage field, more particularly to a kind of underground voltage stabilizing caisson of built-in water storage container and its
Voltage stabilizing control technology.
Background technology
Energy-storage system is to maintain the stabilization of power grids, it is ensured that the important step of power supply reliability, and big for solving regenerative resource
Scale is grid-connected there is provided effective way.When compressed air energy storage technology is due to big little, capacity, work is limited by geographical conditions
Between the advantages of long, economic performance is good, charge and discharge cycles are more, be the important channel of the extensive energy storage problem of effectively solving.
Focus of the compressed-air energy-storage system as extensive power energy storage technical research, caisson is its vitals
One of.Underground gas storage device is, using relatively early and extensive caisson, to generally select the Natural Caves of underground or discarded
Ore deposit hole stored, construction cost is relatively low and does not take up space.It is salt cave wherein using a kind of more underground gas storage mode
Gas storage, by injecting fresh water to Salt layer, Salt layer is dissolved, then saline is discharged, and forming solution cavity carries out gas storage.This gas storage
Storehouse airtight performance is good, and gas storage pressure is high.
As many underground gas storage systems all adopt solubility salt deposit gas storage, for a long time in the High Temperature High Pressure of gas storage working condition
The low-temp low-pressure environment of environment and exhaust work state is toggled, and easily causes Salt layer to cave in and safety problem.Fill in gas storage
The amount of flowing in and out for putting middle increase water, control and regulation liquid makes air container pressure stable, but solubility salt deposit wall is not
Permission is contacted with water for a long time, therefore, how salt cave of the prior art caisson avoids inwall from contacting with water becomes this technology
A field technical problem urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of underground voltage stabilizing caisson of built-in water storage container and its voltage stabilizing control skill
Art is overcoming the above-mentioned problems in the prior art.
The present invention provides a kind of underground voltage stabilizing caisson of built-in water storage container, by built-in water storage container, using every
From device or remove water unit, prevent air container inwall from contact with water and cause inner wall corrosion, using liquid driven equipment control with
The amount of flowing in and out for adjusting liquid maintains caisson pressure stable, it is ensured that caisson is in two kinds of work shapes of gas storage and aerofluxuss
All the time work near constant pressure in state.
For reaching above-mentioned purpose, the technical solution used in the present invention is as follows.
The underground voltage stabilizing caisson of the built-in water storage container includes：Water storage container A, air container B, fluid pipeline C,
Gas pipeline D, liquid driven equipment E；Water storage container A is placed in inside underground gas storage container B by certain supporting construction, bottom envelope
Close, top is communicated with air container B, fluid pipeline C passes through air container B wall in one end, be connected to water storage container A bottoms, separately
One end is connected to liquid driven equipment E one end, and the liquid driven equipment E other ends are connected with outside water storage device, gas pipeline D mono-
End connection air container B, the position being connected with air container B can be any, and other end connection external pneumatic equipment, external pneumatic set
It is standby to inject into air container B or derive compressed air；Control and adjust liquid to flow into and discharge by liquid driven equipment E
Realize voltage stabilizing control program.
The voltage stabilizing control program includes control targe and control measure, and control targe has following two：Air container
B internal gas pressure,Liquid driven equipment E two ends liquid pressure is poor；Control measure are：When the measured value of control targe it is low
When setting value, control and regulation liquid driven equipment E increase liquid influx or reduce liquid outflow amount, when control targe
When measured value is equal to setting value, control and regulation liquid driven equipment E maintain current liquid influx or discharge, work as control
When the measured value of target is higher than setting value, control and regulation liquid driven equipment E reduce liquid influx or increase liquid and flow out
Amount.
The water storage container A can be one or more, and each is by independent fluid pipeline C and liquid driven equipment E phases
Even.
The underground voltage stabilizing caisson of the built-in water storage container, can increase with air container B connectivity part in water storage container A
Isolating device removes water unit, it is to avoid water is into air container B, isolating device or except water unit can be boron body politef
EPTEE waterproof ventilated membranes etc..
The liquid driven equipment E can adopt reversible turbine-generator units, or while using turbine-generator units and
Water pump, or adopt hydraulic motor；Water storage container A is the water-resistant materials such as rustless steel, concrete, plastics；Air container B is underground
Cave or the metal pressure vessel or pipeline positioned at ground；External pneumatic equipment is air compressor machine, decompressor, gas turbine and each
Plant gas piston equipment；Outside water storage device is low pressure pond or high-pressure buffer pond etc..
Beneficial effects of the present invention include the following aspects.
（1）Water storage container is separated by the underground voltage stabilizing caisson of the built-in water storage container with air container, it is to avoid water
Corrosion air container inwall, provides a kind of realization side for the gas storage of soluble-salt cave and easily by the canister gas storage of aqueous corrosion
Formula, makes full use of the natural resources, and has saved construction cost.
（2）The underground voltage stabilizing caisson of the built-in water storage container realizes gas-liquid mixed storage, and controls and adjust
The amount of flowing in and out of liquid makes high-pressure gas gas in container invariablenes pressure of liquid, realizes the voltage stabilizing storage of compressed air, it is to avoid
In air container, the recurrent fluctuations of pressure, is conducive to salt cave caisson safe and stable operation.
（3）The voltage stabilizing control targe of the underground voltage stabilizing caisson of the built-in water storage container is liquid driven equipment two ends
During liquid pressure difference, the amount of flowing in and out of control and regulation liquid makes equipment two ends liquid pressure difference stable, is conducive to liquid
Driving equipment stable operation.
Description of the drawings
Fig. 1 is the underground voltage stabilizing caisson structural representation of built-in water storage container of the invention.
Fig. 2 is a kind of operating scheme figure of the underground voltage stabilizing caisson of built-in water storage container of the invention.
Fig. 3 is a kind of embodiment figure of the underground voltage stabilizing caisson of built-in water storage container of the invention.
Labelling in figure：
Water storage container A, air container B, fluid pipeline C, gas pipeline D, liquid driven equipment E.
Specific embodiment
For making purpose, technical scheme and the advantage of present invention enforcement clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing 1-3, the technical scheme in the embodiment of the present invention is further described in more detail.
Fig. 1 is the underground voltage stabilizing caisson structural representation of built-in water storage container of the invention.Water storage container A is by certain
Supporting construction is placed in inside underground gas storage container B, and bottom closing, top are communicated with air container B, and fluid pipeline C is passed through one end
Air container B wall, is connected to water storage container A bottoms, and the other end is connected to liquid driven equipment E one end, liquid driven equipment E
The other end is connected with outside water storage device, gas pipeline D one end connection air container B, and the position being connected with air container B can be appointed
Meaning, other end connection external pneumatic equipment, external pneumatic equipment are injected into air container B or derive compressed air；In water-retention
Container A can increase isolating device or except water unit with air container B connectivity part, it is to avoid water enters air container B.Voltage stabilizing gas storage is filled
Put in the course of the work, water is circulated in water storage container A and fluid pipeline C all the time, is not contacted with air container B inwall.
Fig. 2 is a kind of operating scheme figure of the underground voltage stabilizing caisson of built-in water storage container of the invention.Gas pipeline D with
The position of air container B connection can be any, and in figure, gas pipeline D is connected with air container B bottom.Realize that voltage stabilizing control can be led to
Cross liquid driven equipment E controls and adjust liquid and flow into and discharge, also can be controlled by external pneumatic equipment and adjust gas
The amount of flowing in and out realizes voltage stabilizing control, and what the amount of flowing in and out referred to liquid or gas here flows in and out speed.Voltage stabilizing control
The control targe of scheme processed has two kinds, during with air container B internal gas pressure as target, is conducive to external pneumatic equipment stable
Operation；During with liquid driven equipment E two ends liquid pressure difference as target, be conducive to liquid driven equipment E stable operations.
With air container B internal gas pressure as control targe：During gas storage, liquid driven equipment E or external pneumatic equipment
The amount of liquid flowed out in the control unit interval is equal with the high pressure gas scale of construction for flowing into keep the intrinsic pressure strong stability of voltage stabilizing caisson,
When the measured value of air container B internal gas pressure is less than setting value, the discharge of liquid or the inflow of increase gas is reduced
Amount, when the measured value of air container B internal gas pressure is higher than setting value, increase liquid outflow amount or reduction gas are flowed into
Amount；During aerofluxuss, the high pressure gas of liquid driven equipment E or the amount of liquid flowed in the external pneumatic equipment control unit interval and outflow
The scale of construction is equal to keep the intrinsic pressure strong stability of voltage stabilizing caisson, when the measured value of air container B internal gas pressure is less than setting
During value, increase liquid influx or reduce gas outflow, when the measured value of air container B internal gas pressure is higher than setting value
When, reduce liquid influx or increase gas outflow.
Target is controlled to liquid driven equipment E two ends liquid pressure difference：Liquid driven equipment E two ends liquid pressure differences by
The pressure that the pressure of gas and liquid height difference are produced in caisson is together decided on.Voltage stabilizing gas storage scheme is in gas storage and aerofluxuss
During, liquid driven equipment E high-pressure side liquid pressures are, whereinFor caisson mesohigh gas
Pressure,For the density of water,For acceleration of gravity,For liquid levels in caisson and liquid driven equipment E high-pressure sides
Difference in height.During with air container B internal gas pressure as target, keep air container B internal pressure stable, i.e.,It is constant,
Due toChange during gas storage and aerofluxuss always, so liquid driven equipment E two ends liquid pressure difference is continually changing,
It is unfavorable for liquid driven equipment E stable operations.With liquid driven equipment E two ends liquid pressure difference as target, during gas storage,By
Cumulative to add, the amount of liquid of liquid driven equipment E or the control unit interval outflow of external pneumatic equipment is less than the gases at high pressure for flowing into
Amount, makes liquid pressures difference in liquid driven equipment E two ends stable, when the measured value of liquid driven equipment E two ends liquid pressure difference it is low
When setting value, the discharge of liquid or the influx of increase gas is reduced, when liquid driven equipment E two ends liquid pressure difference
When measured value is higher than setting value, increases liquid outflow amount or reduce gas influx；During aerofluxuss,It is gradually reduced, liquid driven
The amount of liquid that equipment E or external pneumatic equipment control unit interval flow into sets liquid driven less than the high pressure gas scale of construction for flowing out
Standby E two ends liquid pressure difference is stable, when the measured value of liquid driven equipment E two ends liquid pressure difference is less than setting value, increase
Liquid influx reduces gas outflow, when the measured value of liquid driven equipment E two ends liquid pressure difference is higher than setting value,
Reduce liquid influx or increase gas outflow.
Fig. 3 is a kind of embodiment figure of the underground voltage stabilizing caisson of built-in water storage container of the invention.In figure, water-retention is held
Device A has multiple, and each is connected with liquid driven equipment E by independent fluid pipeline C.During gas storage and aerofluxuss, lead to
Valve transfer, a water storage container A and its fluid pipeline C and liquid driven equipment E independent roles is crossed, effect switches after finishing again
It is next.Water storage container A can also be interconnected, and form a large-scale water storage container, by a fluid pipeline C and liquid driven
Equipment E is connected.
It is last it is to be noted that：, only to illustrate technical scheme, only the present invention is preferable for above example
Specific embodiment, rather than a limitation.Although being described in detail to the present invention with reference to the foregoing embodiments, this area
Those of ordinary skill should be understood：Which still can be modified to the technical scheme described in foregoing embodiments, or
Equivalent is carried out to which part technical characteristic；And these modifications or replacement, take off the essence of appropriate technical solution
From the spirit and scope of various embodiments of the present invention technical scheme, should all be included within the scope of the present invention.
Claims (5)
1. the underground voltage stabilizing caisson of a kind of built-in water storage container, it is characterised in that：The voltage stabilizing caisson includes：Water-retention
Container（A）, air container（B）, fluid pipeline（C）, gas pipeline（D）, liquid driven equipment（E）；Water storage container（A）It is placed in storage
Gas container（B）Inside, bottom closing, top and air container（B）Communicate, fluid pipeline（C）Air container is passed through in one end（B）Device
Wall, is connected to water storage container（A）Bottom, the other end are connected to liquid driven equipment（E）One end, liquid driven equipment（E）It is another
End is connected with outside water storage device, gas pipeline（D）One end connects air container（B）, other end connection external pneumatic equipment, outward
Portion's pneumatic equipment is to air container（B）Compressed air is derived in interior injection；By liquid driven equipment（E）Control and regulation liquid
The amount of flowing in and out realizes voltage stabilizing control program.
2. the underground voltage stabilizing caisson of a kind of built-in water storage container according to claim 1, it is characterised in that described steady
Pressure control program includes control targe and control measure, and control targe has following two：Air container（B）Internal gas pressure
By force,Liquid driven equipment（E）Two ends liquid pressure is poor；Control measure are：When the measured value of control targe is less than setting value,
Control and regulation liquid driven equipment（E）Increase liquid influx reduces liquid outflow amount, when the measured value etc. of control targe
When setting value, control and adjust liquid driven equipment（E）Current liquid influx or discharge is maintained, when control targe
When measured value is higher than setting value, controls and adjust liquid driven equipment（E）Reduce liquid influx or increase liquid outflow amount.
3. a kind of underground voltage stabilizing caisson of built-in water storage container according to claim 1, it is characterised in that the storage
Water container（A）Can be one or more, each passes through independent fluid pipeline（C）With liquid driven equipment（E）It is connected.
4. the underground voltage stabilizing caisson of a kind of built-in water storage container according to claim 1, it is characterised in that in water-retention
Container（A）With air container（B）Connectivity part can increase isolating device or except water unit, it is to avoid water enters air container（B）.
5. a kind of underground voltage stabilizing caisson of built-in water storage container according to claim 1, it is characterised in that the liquid
Body driving equipment（E）Can adopt reversible turbine-generator units, or while adopt turbine-generator units and water pump, or adopt
Hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940621.7A CN106523896B (en) | 2016-11-02 | 2016-11-02 | The underground pressure stabilizing caisson of built-in water storage container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940621.7A CN106523896B (en) | 2016-11-02 | 2016-11-02 | The underground pressure stabilizing caisson of built-in water storage container |
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| CN106523896A true CN106523896A (en) | 2017-03-22 |
| CN106523896B CN106523896B (en) | 2018-12-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158552A (en) * | 2019-05-09 | 2019-08-23 | 华北电力大学 | The virtual hydroenergy storage station of staged |
| CN110274150A (en) * | 2019-06-05 | 2019-09-24 | 许未晴 | A kind of pressure-air storage device and its method for compressed-air energy storage |
| CN112855265A (en) * | 2020-12-30 | 2021-05-28 | 西安交通大学 | Water-soluble cavity-making energy storage combined system and method |
| CN112944199A (en) * | 2019-12-10 | 2021-06-11 | 清华大学 | Underground constant-pressure gas storage device |
| CN113108234A (en) * | 2021-04-16 | 2021-07-13 | 菏泽城建置业有限公司 | Gas storage device for serving village revivification |
| CN114458380A (en) * | 2022-02-17 | 2022-05-10 | 北京中海能大储能技术有限公司 | Method for storing energy by utilizing compressed air in underground waste space |
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| CN202419120U (en) * | 2011-12-16 | 2012-09-05 | 江苏汉光生物工程有限公司 | Marsh gas pressure stabilizing cabinet |
| CN203979862U (en) * | 2014-07-07 | 2014-12-03 | 浙江省天正设计工程有限公司 | A kind ofly reduce half wet gasholder that stored-gas contacts with water sealing liquid |
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| US5368067A (en) * | 1993-03-23 | 1994-11-29 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Gas storage and recovery system |
| CN202419120U (en) * | 2011-12-16 | 2012-09-05 | 江苏汉光生物工程有限公司 | Marsh gas pressure stabilizing cabinet |
| CN203979862U (en) * | 2014-07-07 | 2014-12-03 | 浙江省天正设计工程有限公司 | A kind ofly reduce half wet gasholder that stored-gas contacts with water sealing liquid |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158552A (en) * | 2019-05-09 | 2019-08-23 | 华北电力大学 | The virtual hydroenergy storage station of staged |
| CN110274150A (en) * | 2019-06-05 | 2019-09-24 | 许未晴 | A kind of pressure-air storage device and its method for compressed-air energy storage |
| CN112944199A (en) * | 2019-12-10 | 2021-06-11 | 清华大学 | Underground constant-pressure gas storage device |
| CN112855265A (en) * | 2020-12-30 | 2021-05-28 | 西安交通大学 | Water-soluble cavity-making energy storage combined system and method |
| CN113108234A (en) * | 2021-04-16 | 2021-07-13 | 菏泽城建置业有限公司 | Gas storage device for serving village revivification |
| CN114458380A (en) * | 2022-02-17 | 2022-05-10 | 北京中海能大储能技术有限公司 | Method for storing energy by utilizing compressed air in underground waste space |
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| Publication number | Publication date |
|---|---|
| CN106523896B (en) | 2018-12-28 |
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