CN203431495U - System for natural gas storage and regulation through hydration - Google Patents
System for natural gas storage and regulation through hydration Download PDFInfo
- Publication number
- CN203431495U CN203431495U CN201320407700.3U CN201320407700U CN203431495U CN 203431495 U CN203431495 U CN 203431495U CN 201320407700 U CN201320407700 U CN 201320407700U CN 203431495 U CN203431495 U CN 203431495U
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- Prior art keywords
- gas
- natural gas
- synthesize
- resolver
- cold
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000003345 natural gas Substances 0.000 title claims abstract description 39
- 230000036571 hydration Effects 0.000 title abstract 2
- 238000006703 hydration reaction Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000654 additive Substances 0.000 claims abstract description 15
- 230000000996 additive effect Effects 0.000 claims abstract description 15
- 239000003915 liquefied petroleum gas Substances 0.000 claims abstract description 14
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 7
- 150000004677 hydrates Chemical class 0.000 claims description 41
- 239000011435 rock Substances 0.000 claims description 17
- 102000004190 Enzymes Human genes 0.000 claims description 12
- 108090000790 Enzymes Proteins 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 abstract description 10
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 abstract description 9
- 239000001273 butane Substances 0.000 abstract description 7
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 abstract description 7
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003507 refrigerant Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 239000001294 propane Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
A system for natural gas storage and regulation through hydration comprises a liquefied petroleum gas storage tank, a natural gas compressor, a natural gas hydrate synthesis and decomposition device, a recycle gas compressor, a water and additive pump, a refrigerant and heating medium pump and a refrigerant and heating medium generator. According to the system, natural gas hydrate is generated by adding a little propane and butane to natural gas under the conditions of temperature reduction and pressure increase and then stored, compared with conventional gas hydrate synthesis, synthesis through the system has the advantages that the pressure is lower and the temperature is higher, and therefore the system is the natural gas storage technology which is small in energy consumption, safe to operate and small in investment.
Description
Technical field:
The utility model belongs to and adopts hydrate to carry out the technical field of natural gas storing peak regulation, particularly a kind ofly utilizes rock gas to add a small amount of propane, butane generates gas hydrates and stores and peak regulation system.
Background technique:
Rock gas is the main source of the gas of China's city gas, and the storage of rock gas is the important step of city gas supply system.The storing mode of current rock gas has the modes such as normal pressure gas holder, high pressure tank, underground natural gas storage tank, liquefaction accumulator plant.The equipment of normal pressure gas storage is huge, and the pressure of high-pressure gas is high, and the Geological Condition Requirement of underground gas storage is high, and the temperature requirement that liquefaction stores is too low.
Summary of the invention:
The utility model object is to provide a kind of hydrate natural gas storing and peak regulation system, this system utilization is added and is generated gas hydrates after a small amount of propane or butane and store and peak regulation in rock gas, native system is compared with conventional gas hydrate system, the balance pressure that hydrate generates is low, the compression power consumption of building-up process is low, and the bearing requirements of equipment can reduce.
As above design, the technical solution of the utility model is: a kind of hydrate natural gas storing and peak regulation system, is characterized in that: comprise liquefied petroleum gas storage tank, natural gas compressor, gas hydrates composition and decomposition device, circulating air compressor, water and additive pump, cold heat medium pump and cold and hot matchmaker's generator, source of the gas rock gas enters liquefied petroleum gas storage tank by pipeline, the air outlet of liquefied petroleum gas storage tank is connected with the suction port of natural gas compressor, the air outlet of natural gas compressor communicates with the suction port of synthesize-resolver of gas hydrates bottom, the liquid outlet of synthesize-resolver of gas hydrates bottom is communicated with the basin of water and additive, the basin of water and additive is communicated with the liquid entering hole at synthesize-resolver top of gas hydrates by water pump, synthesize-the air outlet at resolver top of gas hydrates is with the import of circulating air compressor or supply natural gas line to be communicated with outward, the outlet of circulating air compressor communicates with the suction port of synthesize-resolver of gas hydrates bottom, the outlet of the heat exchanger coiled pipe in synthesize-resolver of gas hydrates is communicated with the import of cold and hot enzyme generator, and the outlet of cold and hot enzyme generator is communicated with the import of heat exchanger coiled pipe by cold and hot enzyme pump, cold and hot enzyme generator is connected for natural gas line with outer.
The air outlet at synthesize-resolver top of above-mentioned gas hydrates is connected for natural gas line with outer by safety valve or valve.
The utlity model has following advantage and effect:
(1) this system is compared with conventional gas hydrate system, and the balance pressure that hydrate generates is low, and the compression power consumption of building-up process is low, and the bearing requirements of equipment can reduce.
(2) this system is compared with conventional gas hydrate system, and the temperature of equilibrium that hydrate generates is high, and the cold that building-up process needs is few.
(3) this system is added after the decomposition of hydrate of the third butane formation, sneaks into natural gas system, little on the makings impact of rock gas.
Accompanying drawing explanation:
Fig. 1 is system diagram of the present utility model.
In figure: 1-liquefied petroleum gas storage tank; 2-gas compressor; 3-gas hydrates composition and decomposition device; 4-safety valve; 5-circulating air compressor; 6-heat exchanger coiled pipe; 7-water and additive storage tank; 8-water and additive pump; 9-cold heat medium pump; 10-cold and hot matchmaker's generator; A-n is valve.
Embodiment:
Natural gas storing and a peak regulation system, be comprised of liquefied petroleum gas storage tank, natural gas compressor, gas hydrates composition and decomposition device, circulating air compressor, water and additive pump, cold heat medium pump and cold and hot matchmaker's generator.Source of the gas rock gas enters liquefied petroleum gas storage tank by pipeline, the air outlet of liquefied petroleum gas storage tank is connected with the suction port of natural gas compressor, the air outlet of natural gas compressor communicates with the suction port of synthesize-resolver of gas hydrates bottom, the liquid outlet of synthesize-resolver of gas hydrates bottom is communicated with the basin of water and additive, the basin of water and additive is communicated with the liquid entering hole at synthesize-resolver top of gas hydrates by water pump, synthesize-the air outlet at resolver top of gas hydrates is with the import of circulating air compressor or supply natural gas line to be communicated with outward, the outlet of circulating air compressor communicates with the suction port of synthesize-resolver of gas hydrates bottom, the outlet of the heat exchanger coiled pipe in synthesize-resolver of gas hydrates is communicated with the import of cold and hot enzyme generator, and the outlet of cold and hot enzyme generator is communicated with the import of heat exchanger coiled pipe by cold and hot enzyme pump, cold and hot enzyme generator is connected for natural gas line with outer.
Working procedure of the present utility model is:
Source of the gas rock gas is generally directly to enter the outer for gas distributing system of city gas through valve a, c.The embodiment that employing this patent carries out natural gas peak-shaving is as follows:
(1) when source of the gas rock gas is rich, valve b opens, and valve g closes, and implements the building-up process of gas hydrates.Natural gas via valve b and liquefied petroleum gas storage tank 1 gasification converge by a small amount of liquefied petroleum gas (LPG) of valve d, through gas compressor 2, are pressurized to after certain pressure, by valve e, f, enter in synthesize-resolver 3 of gas hydrates.Propane in rock gas or butane are 2%～5%, under the condition of 2～3MPa pressure and 0～10 ℃ of temperature, carry out the synthetic of gas hydrates.In the building-up process of gas hydrates, the refrigerant of hydrate building-up process liberated heat in heat exchanger coiled pipe 6 taken away, refrigerant after intensification is entered in cold and hot matchmaker's generator 10 through valve l by heat exchanger coiled pipe 6, and the refrigerant after cooling is sent back to by cold heat medium pump 9 through valve m in the heat exchanger coiled pipe 6 of synthesize-resolver 3 of gas hydrates.Water and the additive of synthesize-resolver 3 bottoms of gas hydrates flow in water and additive tank 7 through valve i, through valve j, after water and additive pump 8 pressurizations, through valve k, from the top of synthesize-resolver 3 of gas hydrates, spray into.Gas hydrates are synthetic-the part natural gas via valve h at resolver 3 tops extracts out after circulating air compressor 5 pressurizations, together with rock gas the third butane mixture through valve f with enter gas hydrates synthetic-bottom of resolver 3.
(2) when source of the gas rock gas is not enough, valve b closes, and valve g opens, and implements the decomposition process of hydrate.Gas hydrates in synthesize-resolver 3 of gas hydrates decompose under the condition of 0.2～1MPa pressure and 20～40 ℃ of temperature, and the natural gas via valve g of generation adds to outer in natural gas line.The heating agent of the heat of gas hydrate dissociation process need in heat exchanger coiled pipe 6 provides, heating agent after cooling is entered in cold and hot matchmaker's generator 10 through valve l by heat exchanger coiled pipe 6, and the heating agent after intensification is sent back to by cold heat medium pump 9 through valve m in the heat exchanger coiled pipe 6 of synthesize-resolver 3 of gas hydrates.
(3) primary energy of refrigerant generator 10 is provided by the outer rock gas flowing to through valve n for natural gas line.The running of cold and hot matchmaker's generator is definite according to the supply situation of source of the gas rock gas, and gas hydrates provide refrigerant when synthetic, and heating agent is provided during gas hydrate dissociation.
(4) when the pressure of synthesize-resolver running of gas hydrates surpasses specified value, safety valve 4 is opened automatically, diffuses outer in natural gas line.
The utility model utilizes rock gas to add a small amount of propane, butane generates the system that gas hydrates store under cooling, the condition of boosting, and the pressure more synthetic than conventional gas hydrate is low, temperature is high.Therefore, the utility model be that a kind of energy consumption is little, security of operation, the lower natural gas storing technology of investment.
Claims (2)
1. hydrate natural gas storing and a peak regulation system, is characterized in that: comprise liquefied petroleum gas storage tank, natural gas compressor, gas hydrates composition and decomposition device, circulating air compressor, water and additive pump, cold heat medium pump and cold and hot matchmaker's generator, source of the gas rock gas enters liquefied petroleum gas storage tank by pipeline, the air outlet of liquefied petroleum gas storage tank is connected with the suction port of natural gas compressor, the air outlet of natural gas compressor communicates with the suction port of synthesize-resolver of gas hydrates bottom, the liquid outlet of synthesize-resolver of gas hydrates bottom is communicated with the basin of water and additive, the basin of water and additive is communicated with the liquid entering hole at synthesize-resolver top of gas hydrates by water pump, synthesize-the air outlet at resolver top of gas hydrates is with the import of circulating air compressor or supply natural gas line to be communicated with outward, the outlet of circulating air compressor communicates with the suction port of synthesize-resolver of gas hydrates bottom, the outlet of the heat exchanger coiled pipe in synthesize-resolver of gas hydrates is communicated with the import of cold and hot enzyme generator, and the outlet of cold and hot enzyme generator is communicated with the import of heat exchanger coiled pipe by cold and hot enzyme pump, cold and hot enzyme generator is connected for natural gas line with outer.
2. hydrate natural gas storing according to claim 1 and peak regulation system, is characterized in that: the air outlet at synthesize-resolver top of above-mentioned gas hydrates is connected for natural gas line with outer by safety valve or valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320407700.3U CN203431495U (en) | 2013-07-10 | 2013-07-10 | System for natural gas storage and regulation through hydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320407700.3U CN203431495U (en) | 2013-07-10 | 2013-07-10 | System for natural gas storage and regulation through hydration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431495U true CN203431495U (en) | 2014-02-12 |
Family
ID=50060532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320407700.3U Expired - Fee Related CN203431495U (en) | 2013-07-10 | 2013-07-10 | System for natural gas storage and regulation through hydration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431495U (en) |
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2013
- 2013-07-10 CN CN201320407700.3U patent/CN203431495U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99 Patentee after: NORTH CHINA MUNICIPAL ENGINEERING DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99 Patentee before: North China Municipal Engineering Design & Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 28, 2023, the expiration and termination of the 39-volume 3002 patent Number: 30-02 Volume: 39 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 |