CN205714296U - Natural gas gas storage well peak regulation energy conserving system - Google Patents
Natural gas gas storage well peak regulation energy conserving system Download PDFInfo
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- CN205714296U CN205714296U CN201620371261.9U CN201620371261U CN205714296U CN 205714296 U CN205714296 U CN 205714296U CN 201620371261 U CN201620371261 U CN 201620371261U CN 205714296 U CN205714296 U CN 205714296U
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Abstract
This utility model relates to a kind of natural gas gas storage well peak regulation energy conserving system, cold energy including gas storage well and series connection with it stores release device and natural gas multi-stage compression storage and pressure regulation release device, cooling water circulation water route, it is characterized in that: described gas storage well is connected with turbo-expander TRT, described turbo-expander TRT connects refrigerating circulatory device, described refrigerating circulatory device includes condenser, regulation valve, compressor and vaporizer, described compressor and condenser connect and compose driving and cooling loop respectively with turbo-expander TRT, described refrigerating circulatory device is connected and composed for cold loop with ice machine bin and cooling water circulation water route by heat exchanger.Beneficial effect: natural gas gas storage well peak regulation energy conserving system takes full advantage of the pressure energy of natural gas self in gas storage well, is translated into required cold energy and electric energy during natural gas storage and release peak regulation, it is achieved that the efficient utilization of the energy.
Description
Technical field
This utility model belongs to oil-gas storage and Transportation Engineering field, particularly relates to a kind of natural gas storage
Gas well peak regulation energy conserving system.
Background technology
When city supply peak regulation is exactly city gas storage facility and gas ductwork reply gas load peak
Tight gas supply ability.Under normal circumstances, deliverability of gas is equilibrium, and business gas and city
Civilian upward adverse flow of QI peak, city of city is generally concentrated at morning, noon and evening, especially CNG automobile with collecting per family
In in the afternoon to before and after dinner, this is with the peak phase of gas.Now without gas storage and peak-shaving facility,
Urban pipe network pressure will significantly reduce, and gas appliance and low-pressure fuel gas facility will be unable to normally use,
CNG Filling Station also cannot normal operation.It not only can hinder commercial production process, also by pole
Affect resident greatly to live normally.Therefore, building city gas storage and peak-shaving facility, regulation upward adverse flow of QI peak is
Required.Compared with traditional gas storage and peak-shaving mode, the little saving of high-pressure gas storage well not only floor space
Land resource, and safe and reliable service life is longer；Build if it is considered that peak regulation is combined with CNG aerating
Stand and also can improve the utilization rate of gas storage well.But, the deficiency that natural gas gas storage well peak regulation system exists is:
After the natural gas of pipeline enters gas storage well voltage regulating station, first have to through compressor two-stage compression even
Three grades of 20-25mpa pressure that can be only achieved requirement, are then passed through dehydration and could enter gas storage well.Electricity
The process that can be converted into pressure energy to consume substantial amounts of electric energy, but until needs peak regulation again by natural
Gas gas storage well inner high voltage natural gas carries out decompression release.Learn according to joule thomson effect and release in decompression
Among the process put, some conversion of the pressure energy of natural gas is for cold energy, and this part cold energy resource is not only
The most effectively utilize, but also need extra consumption fossil energy to carry out heat counteracting, wave
Take the substantial amounts of energy, thus add the cost of high-pressure gas storage well peak regulation.Number of patent application:
201310145720.2 disclose a kind of liquefaction peak regulating method utilizing natural gas high pressure pipe network pressure energy,
It is characterized in that: natural gas enters conventional gas door station from high-pressure natural gas gas pipeline, initially presses
Power 6～10MPa, through three-way valve, high-pressure natural gas is divided into a, b two strands.Meet urban pipe network wink
Time demand a stock natural gas through swell refrigeration equipment swell refrigeration, pressure be down to 0.5～
1.6MPa, temperature reduces to-110～-49 DEG C, and this process produces substantial amounts of cold energy, cryogenic natural gas with
Coolant carries out Cooling capacity exchanging at heat exchanger, and temperature brings up to 5 DEG C, enters urban pipe network；Refrigerant temperature
Reduce to-30～0 DEG C, be stored in low temperature coolant storage tank, during with gas low ebb, the b stock that transient demand is superfluous
Natural gas via plate type heat exchanger carries out natural gas liquefaction, is stored in by liquefied natural gas by gas-liquid separator
In liquefied natural gas air accumulator；During with upward adverse flow of QI peak, will be stored in liquefied natural gas air accumulator liquefies natural
Gas passes through liquefied natural gas pump, the feeding gas distributing system after gasifier gasification pressure regulation, solves peak
Use gas problem.And the natural gas not liquefied of gas-liquid separator separates and b stock natural gas converge, again
Entering plate type heat exchanger, in low temperature coolant storage tank, the cold of storage is sent into board-like with coolant by centrifugal pump
Carrying out natural gas liquefaction in heat exchanger, the coolant after heat exchange heats up returns room temperature coolant storage tank, utilize from
Heart pump refrigerant circulation uses.This utility model and above-mentioned patent have essential distinction, this utility model solution
Certainly be the problem of complex utilization compressing and discharging the process energy during gas storage well peak regulation, above-mentioned patent
It is not appropriate for gas storage well peak regulation, when urban pipe network needs peak regulation for QI-insufficiency, gas storage well release low pressure
Natural gas solves peaking problem, is now not required to store natural gas liquefaction, as liquefaction on the contrary can be with
Urban pipe network needs low pressure natural gas to contradiction.
Utility model content
This utility model is to overcome deficiency of the prior art, it is provided that a kind of natural gas gas storage well is adjusted
Peak energy conserving system, makes full use of the pressure energy of natural gas self in gas storage well, is converted during peak regulation
For cold energy required when natural gas storage and release and electric energy, it is achieved that the efficient utilization of the energy.
This utility model for achieving the above object, is achieved through the following technical solutions, a kind of natural gas storage
Gas well peak regulation energy conserving system, the cold energy including gas storage well and series connection with it stores release device and natural gas
Multi-stage compression storage and pressure regulation release device, and discharge device and the multistage pressure of natural gas for cold energy storage
Contracting storage and pressure regulation release device cooling cooling water circulation water route, it is characterized in that: described gas storage well with
Turbo-expander TRT connects, and described turbo-expander TRT connects refrigerating circulatory device,
Described refrigerating circulatory device includes condenser, regulation valve, compressor and vaporizer, described compressor and
Condenser connects and composes driving and cooling loop respectively with turbo-expander TRT, and described refrigeration is followed
Loop device is connected and composed for cold loop with ice machine bin and cooling water circulation water route by heat exchanger.
Described turbo-expander TRT connects accumulator, described accumulator and cold energy storage release
The electric heater of device connects.
Control switch it is provided with between described accumulator and electric heater.
Beneficial effect: compared with prior art, energy saving: natural gas gas storage well peak regulation energy conserving system fills
Point make use of the pressure energy of natural gas self in gas storage well, be translated into natural gas storage and release peak regulation
Cold energy required for during and electric energy, it is achieved that the efficient utilization of the energy, combine again high pressure simultaneously
The various advantages of gas storage well.Economy: reduce the use of electric energy during gas storage and peak-shaving, the most also
Decrease the use of fossil energy, effectively reduce the cost of high-pressure gas storage well peak regulation, beneficially ring
The protection in border and utilize the energy efficiently.
Accompanying drawing explanation
Fig. 1 is system connection diagram of the present utility model.
In figure: 1-compressor；2-compressor；3-electromagnetic valve；4-heat exchanger；5-ball valve；6-drying tower；
7-electric heater；8-separator；9-water pump；10-cooling pond；11-ice machine bin；12-heat exchanger；
13-gas storage well；14-controls switch；15-accumulator；16-combustion gas turbine decompressor TRT；
17-pressure regulator；18-condenser；19-compressor；20-vaporizer；21-choke valve.
I, cold energy storage release device, II, natural gas multi-stage compression storage and pressure regulation release device.
Detailed description of the invention
Below in conjunction with preferred embodiment, the detailed description of the invention provided according to this utility model is described in detail such as
Under:
Refer to accompanying drawing 1, present embodiments provide a kind of natural gas gas storage well peak regulation energy conserving system, including
The cold energy storage of gas storage well and series connection with it discharges device I and natural gas multi-stage compression storage and pressure regulation
Release device II, and discharge device and natural gas multi-stage compression storage and pressure regulation release for cold energy storage
The cooling water circulation water route of device cooling, described gas storage well is connected with turbo-expander TRT, institute
Stating turbo-expander TRT and connect refrigerating circulatory device, described refrigerating circulatory device includes condensation
Device, regulation valve, compressor and vaporizer, described compressor and condenser are sent out with turbo-expander respectively
Electric installation connects and composes driving and cooling loop, and described refrigerating circulatory device passes through heat exchanger and ice machine bin
And cooling water circulation water route connects and composes for cold loop.Described turbo-expander TRT connects to be had
Accumulator, described accumulator is connected with the electric heater of cold energy storage release device.Described accumulator with
Control switch it is provided with between electric heater.
Operation principle
Utilize and the pressure energy of gas storage well mesohigh natural gas is generated electricity by turbo-expander TRT, this
Electric energy has two parts purposes: a part drives the compressor cooling of refrigerating circulatory device, is stored by cold energy
Use when multi-stage compression intercooling and drying tower regeneration in ice machine bin is for cooling water circulation water route；
Another part electric energy is stored in accumulator, electric heater 7 will be driven for cold energy storage release device
Use during drying tower regeneration.Meanwhile, by its temperature of the natural gas after turbo-expander TRT
Relatively low by can improve again temperature with the heat exchange of condenser, enter back into city natural gas pipe network.
Its operational process is: the air inlet of gas storage well is low pressure natural gas, and low pressure natural gas is through compressor
1 is compressed, and the natural gas after having compressed cools down through intercooling heat exchanger 4 again,
The source wherein cooling down water provides for cooling pond 10, wherein cools down the circulation power of water by water pump 9
Thering is provided, discharge is controlled by electromagnetic valve 3, and the natural gas after having cooled down is again through overcompression
Machine 2 is compressed, and the natural gas after having compressed cools down again, is changed by intercooling equally
Hot device cools down.High-pressure natural gas after having compressed enters in high press-dehydrating device drying tower 6
Being dehydrated, need cooling and heating during dehydration, wherein the cooling water source of cooling segment is same
Sample is provided by heat exchanger 4 by cooling pond 10.Electric heater 7 is provided electric energy also by accumulator 15
Being controlled by controlling switch 14, the high-pressure natural gas after dehydration enters gas storage through separator 8
Well 13, is controlled by ball valve 5 between separator and drying tower, and this process is the compression of natural gas
Storing process.
Utility model works state is: when needs peak regulation, the natural gas via of gas storage well release high pressure
Cross pressure regulator 17 to carry out reducing pressure for the first time, send out subsequently in combustion gas turbine decompressor TRT 16
Electricity, the electric energy after completing generating has two parts purposes: a part is stored in accumulator 15, and one
Part is used for driving compressor 19.Compressor 19 and vaporizer 20, choke valve 21, condenser 18
Composition refrigerating circulatory device freezes, and prepares cold energy and is stored in ice machine bin 11 by heat exchanger 12,
Ice machine bin is connected with cooling pond 10 again provides cold energy, and wherein the circulation power of heat transferring medium is by water pump 9
There is provided.Natural gas after combustion gas turbine decompressor TRT is carried out through condenser 16 again
Heat-exchange temperature enters city natural gas pipe network after promoting.
Above-mentioned retouch in detail what this kind of natural gas gas storage well peak regulation energy conserving system was carried out with reference to embodiment
State, be illustrative rather than determinate, can according to restriction scope list several embodiments,
Therefore without departing from changing and modifications under this utility model general plotting, guarantor of the present utility model should be belonged to
Within the scope of protecting.
Claims (3)
1. a natural gas gas storage well peak regulation energy conserving system, including gas storage well and the cold energy of series connection with it
Storage release device and natural gas multi-stage compression storage and pressure regulation discharge device, and release for cold energy storage
Put device and natural gas multi-stage compression storage and the cooling water circulation water route of pressure regulation release device cooling, its
Feature is: described gas storage well is connected with turbo-expander TRT, described turbo-expander generating dress
Put connection refrigerating circulatory device, described refrigerating circulatory device include condenser, regulation valve, compressor and
Vaporizer, described compressor and condenser respectively connect and compose with turbo-expander TRT driving and
Cooling loop, described refrigerating circulatory device is connected with ice machine bin and cooling water circulation water route by heat exchanger
Connect composition for cold loop.
Natural gas gas storage well peak regulation energy conserving system the most according to claim 1, is characterized in that:
Described turbo-expander TRT connects accumulator, described accumulator and cold energy storage release device
Electric heater connect.
Natural gas gas storage well peak regulation energy conserving system the most according to claim 2, is characterized in that:
Control switch it is provided with between described accumulator and electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620371261.9U CN205714296U (en) | 2016-04-27 | 2016-04-27 | Natural gas gas storage well peak regulation energy conserving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620371261.9U CN205714296U (en) | 2016-04-27 | 2016-04-27 | Natural gas gas storage well peak regulation energy conserving system |
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| Publication Number | Publication Date |
|---|---|
| CN205714296U true CN205714296U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620371261.9U Expired - Fee Related CN205714296U (en) | 2016-04-27 | 2016-04-27 | Natural gas gas storage well peak regulation energy conserving system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513710A (en) * | 2021-03-31 | 2021-10-19 | 东南大学 | Multistage utilization and peak regulation system of natural gas pressure energy |
| CN114458407A (en) * | 2022-03-11 | 2022-05-10 | 西安热工研究院有限公司 | System and method for coupling natural gas energy storage with gas turbine power generation |
-
2016
- 2016-04-27 CN CN201620371261.9U patent/CN205714296U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513710A (en) * | 2021-03-31 | 2021-10-19 | 东南大学 | Multistage utilization and peak regulation system of natural gas pressure energy |
| CN114458407A (en) * | 2022-03-11 | 2022-05-10 | 西安热工研究院有限公司 | System and method for coupling natural gas energy storage with gas turbine power generation |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20170427 |
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| CF01 | Termination of patent right due to non-payment of annual fee |