CN113720184A - Oil gas field station heat energy cyclic utilization system - Google Patents
Oil gas field station heat energy cyclic utilization system Download PDFInfo
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- CN113720184A CN113720184A CN202111029301.3A CN202111029301A CN113720184A CN 113720184 A CN113720184 A CN 113720184A CN 202111029301 A CN202111029301 A CN 202111029301A CN 113720184 A CN113720184 A CN 113720184A
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- 125000004122 cyclic group Chemical group 0.000 title description 2
- 239000007789 gas Substances 0.000 claims abstract description 127
- 238000005338 heat storage Methods 0.000 claims abstract description 119
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000002699 waste material Substances 0.000 claims abstract description 60
- 230000005494 condensation Effects 0.000 claims abstract description 49
- 238000009833 condensation Methods 0.000 claims abstract description 49
- 239000003345 natural gas Substances 0.000 claims abstract description 31
- 238000001704 evaporation Methods 0.000 claims abstract description 25
- 230000008020 evaporation Effects 0.000 claims abstract description 25
- 238000004146 energy storage Methods 0.000 claims abstract description 19
- 238000004064 recycling Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000005265 energy consumption Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 119
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 85
- 238000005192 partition Methods 0.000 claims description 10
- 239000012774 insulation material Substances 0.000 claims description 6
- 239000011358 absorbing material Substances 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 3
- 238000007906 compression Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
- F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sustainable Development (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to the technical field of energy utilization of oil and gas field stations, in particular to a heat energy recycling system of an oil and gas field station, which comprises a heat energy providing end, a heat energy storage end, a heat energy consumption end and a heat energy transmission system, wherein the heat energy providing end is connected with the heat energy storage end; the heat energy transmission system comprises a first heat source exchanger and a second heat source exchanger, and the first heat source exchanger and the second heat source exchanger are both provided with an evaporation end and a condensation end; the heat energy providing end comprises a waste oil-gas well heat exchanging end, a natural gas compressor unit and a compressor concentrated heat exchanger, and the waste oil-gas well heat exchanging end, the evaporation end of the first heat source exchanger and the compressor concentrated heat exchanger form a closed loop; when the heat energy storage end carries out heat storage work, the heat energy storage end and the condensation end of the first heat source exchanger form a closed loop. The invention can recycle a large amount of waste heat energy and geothermal energy of the oil-gas field, and can save energy, reduce emission and improve the high-efficiency utilization of energy for the oil-gas field.
Description
Technical Field
The invention relates to the technical field of energy utilization of oil and gas field stations, in particular to a heat energy recycling system of an oil and gas field station.
Background
Oil gas field station can release a large amount of heat energy every year, especially when oil gas field industry natural gas compression operation, the gaseous a large amount of heat energy of compression inflation release, the waste of heat energy is extremely serious, can all consume a large amount of energy every year to oil tank heating in current oil gas field oil depot, and current oil gas field station heat supply, heating, the cooling device mostly has energy utilization efficiency low, extravagant serious, and increase potential safety hazard scheduling problem, and meanwhile a large amount of fossil energy consumption can add the emission of heavy carbon.
Disclosure of Invention
The invention aims to provide an oil and gas field station heat energy recycling system which can recycle a large amount of waste heat energy and geothermal energy of an oil and gas field, save energy, reduce emission and improve energy efficient utilization for the oil and gas field, aiming at the problems in the background technology.
The technical scheme of the invention is that the oil and gas field station heat energy recycling system comprises a heat energy providing end, a heat energy storage end, a heat energy consumption end and a heat energy transmission system;
the heat energy transmission system comprises a first heat source exchanger and a second heat source exchanger, and the first heat source exchanger and the second heat source exchanger are both provided with an evaporation end and a condensation end;
the heat energy providing end comprises a waste oil-gas well heat exchange end, a natural gas compressor unit and a compressor concentrated heat exchanger, the waste oil-gas well heat exchange end, the evaporation end of the first heat source exchanger and the compressor concentrated heat exchanger form a closed loop, and the natural gas compressor unit is communicated with the compressor concentrated heat exchanger;
when the heat storage end carries out heat storage work, the heat storage end and the condensation end of the first heat source exchanger form a closed loop; when the heat energy storage end performs heat release work, the heat energy storage end and the evaporation end of the second heat source exchanger form a closed loop;
the heat energy consumption end comprises a user-defined use end, a heating oil storage tank return pipeline and an oil storage tank heating end, the user-defined use end, a second heat source exchanger condensation end and the heating oil storage tank return pipeline form a closed loop, and the heating oil storage tank return pipeline is located in the oil storage tank heating end.
Preferably, the heat energy transmission system further comprises a control valve for a compressor concentrated heat exchanger to enter a second heat source exchanger, a control valve for a compressor concentrated heat exchanger to enter a first heat source exchanger, a condensation end outlet control valve, a condensation end outlet pressurizing water pump and a user-defined use end dispersing type pipeline; a first heat source exchanger internal compressor is arranged in the first heat source exchanger, and a second heat source exchanger internal compressor is arranged in the second heat source exchanger; the outlet of the compressor concentrated heat exchanger is connected to the evaporation end of the first heat source exchanger through a pipeline and is controlled by a control valve of the compressor concentrated heat exchanger entering the first heat source exchanger; the outlet of the compressor concentrated heat exchanger is connected to the evaporation end of the second heat source exchanger through a pipeline and is controlled by a control valve of the compressor concentrated heat exchanger entering the second heat source exchanger; the condensation end outlet control valve and the condensation end outlet pressure water pump are sequentially connected and positioned at the condensation end outlet of the second heat source exchanger; and the heating oil storage tank return pipeline and the user-defined using end dispersion pipeline are communicated with the outlet of the condensing end of the second heat source exchanger.
Preferably, abandonment oil gas well heat transfer end includes abandonment oil gas well double helix pipeline, first abandonment oil gas well, the oil gas well is abandoned to the second abandonment, the third waste, first abandonment oil gas well control valve, the oil gas well control valve is abandoned to the second abandonment, the oil gas well control valve is abandoned to the third waste, abandonment oil gas well heat transfer end main valve and abandonment oil gas well heat transfer end booster pump, abandonment oil gas well double helix pipeline sets up at first abandonment oil gas well, inside the oil gas well is abandoned to the second abandonment oil gas well and the third waste, abandonment oil gas well double helix pipeline connects the evaporation end of first heat source interchanger and second heat source interchanger simultaneously, abandonment oil gas well heat transfer end main valve and abandonment oil gas well heat transfer end booster pump are located abandonment oil gas well heat transfer end circuit exit.
Preferably, a natural gas compressor set pressurizing water pump and a natural gas compressor set control valve are arranged on a pipeline which is communicated with the compressor concentrated heat exchanger; the outlet of the compressor concentrated heat exchanger is connected with a compressor concentrated heat exchanger outlet pressurizing water pump, and the inlet of the compressor concentrated heat exchanger is sequentially connected with a compressor concentrated heat exchanger inlet pressurizing water pump and a compressor concentrated heat exchanger inlet control valve; the outlet of the natural gas compressor unit and the inlet of the compressor centralized heat exchanger form a loop closed loop through a pipeline.
Preferably, the heat energy storage end comprises a heat storage tank shell, a high heat-conducting medium body, a high specific heat medium body, a heat storage tank heat storage work control valve and a heat storage tank heat release work control valve, the heat storage tank heat storage work pressure water pump, the heat storage tank heat release work pressure water pump, the heat storage tank internal pressure water pump, the heat storage tank partition plate and the heat storage tank spiral pipeline are arranged at the inlet of the heat storage tank shell, the heat storage tank partition plate is horizontally arranged on the inner wall of the heat storage tank shell and divides the internal space of the heat storage tank shell into a first cabin and a second cabin from top to bottom, the high heat-conducting medium body is positioned in the first cabin, the high specific heat-conducting medium body is positioned in the second cabin, the heat storage tank spiral pipeline penetrates through the high heat-conducting medium body, the heat storage tank partition plate and the high specific heat-conducting medium body, and the heat storage tank spiral pipeline is simultaneously connected with the condensation end of the first heat source exchanger and the evaporation end of the second heat source exchanger;
when the heat storage is carried out at the heat energy storage end, the outlet of the shell of the heat storage tank is sequentially connected with a heat storage work control valve of the heat storage tank and a heat storage work pressurizing water pump of the heat storage tank, and a closed loop is formed through the condensation end of the first heat source exchanger; when the heat energy storage end performs heat release work, the outlet of the shell of the heat storage tank is sequentially connected with a heat storage tank heat release work pressurizing water pump and a heat storage tank heat release work control valve, and a closed loop is formed through the evaporation end of the second heat source exchanger.
Preferably, the user-defined use end comprises a user-defined use end control valve and a user-defined use end pressure water pump, and the user-defined use end control valve, the user-defined use end pressure water pump, the heating oil storage tank return pipeline, the second heat source exchanger condensation end, the condensation end outlet control valve and the condensation end outlet pressure water pump are sequentially connected to form a loop.
Preferably, the oil storage tank heating end comprises a first heating oil storage tank, a second heating oil storage tank, a third heating oil storage tank, a first heating oil storage tank control valve and a second heating oil storage tank control valve, third heating oil storage tank control valve, first heating oil storage tank pressure water pump, second heating oil storage tank pressure water pump and third heating oil storage tank pressure water pump, first heating oil storage tank, second heating oil storage tank and third heating oil storage tank are parallel structure, first heating oil storage tank is connected first heating oil storage tank control valve and first heating oil storage tank pressure water pump, second heating oil storage tank is connected second heating oil storage tank control valve and second heating oil storage tank pressure water pump, third heating oil storage tank is connected third heating oil storage tank control valve and third heating oil storage tank pressure water pump, oil storage tank heating end forms closed circuit with second heat source interchanger condensation end, oil storage tank heating end pipeline is established to laying back the type structure.
Preferably, the heat storage box outer shell is made of a photovoltaic heat absorption material and a heat insulation material and is of a structure of three layers, namely the photovoltaic heat absorption material, the heat insulation material and the photovoltaic heat absorption material.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention can recycle a large amount of waste heat energy and geothermal energy of the oil-gas field, and can save energy, reduce emission and improve the high-efficiency utilization of energy for the oil-gas field. Can be with the geothermal storage in the heat storage case shell in the heat that produces among the oil gas field natural gas compression process and the abandonment oil gas well for the heating work of oil gas field heating oil storage tank increases self-defined user end simultaneously, is used for satisfying the oil gas field heat demand of using daily. The heat that the make full use of oil gas field natural gas compression in-process produced and the geothermol power in the abandonment oil gas well, the installation overall arrangement of system is simple, carries out the secondary development to the abandonment oil gas well that the oil gas field has been developed and realizes the biggest development of oil gas field economy, and the most shallow stratum that buries of system's pipeline, fail safe nature is high, possess good application prospect.
Drawings
FIG. 1 is a schematic structural diagram of an oil and gas field station heat energy recycling system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a heat storage tank shell in an oil and gas field station heat energy recycling system;
FIG. 3 is a schematic diagram of a double spiral pipeline structure of a waste oil and gas well in an oil and gas field station heat energy recycling system;
FIG. 4 is a schematic view of a heating oil storage tank loop pipeline in an oil and gas field station heat energy recycling system;
fig. 5 is a schematic diagram of a three-layer structure of a heat storage tank shell in a heat recycling system of an oil and gas field station.
Reference numerals:
1. the heat exchange end of the waste oil and gas well; 101. a first waste oil and gas well; 102. a second waste oil and gas well; 103. the third waste oil-gas well is abandoned; 104. a first spent oil and gas well control valve; 105. a second spent oil gas well control valve; 106. a third waste oil-gas well control valve; 107. a heat exchange end main valve of the waste oil-gas well; 108. a waste oil-gas well heat exchange end pressurizing water pump;
201. a first heat source exchanger; 202. a second heat source exchanger; 203. a control valve for the compressor centralized heat exchanger to enter the second heat source exchanger; 204. a control valve for the compressor centralized heat exchanger to enter the first heat source exchanger; 205. a first heat source exchanger internal compressor; 206. a second heat source exchanger internal compressor; 207. a condensing end outlet control valve; 208. a pressure water pump is arranged at the outlet of the condensation end;
3. a natural gas compressor unit; 301. a natural gas compressor set pressurizing water pump; 302. a natural gas compressor set control valve;
4. a compressor centralized heat exchanger; 401. the compressor concentrates the pressurized water pump of heat exchanger outlet; 402. the compressor is centralized and the inlet of the heat exchanger pressurizes the water pump; 403. an inlet control valve of the compressor central heat exchanger;
5. self-defining a user end; 501. self-defining a using end control valve; 502. self-defining a use end pressure water pump;
6. a heating end of the oil storage tank; 601. a first heating oil storage tank; 602. a second heating oil storage tank; 603. a third heating oil storage tank; 604. a first heating oil storage tank control valve; 605. a second heating oil storage tank control valve; 606. a third heating oil storage tank control valve; 607. a first heating oil storage tank pressurizing water pump; 608. a second heating oil storage tank pressurizing water pump; 609. a third heating oil storage tank pressurizing water pump;
701. a heat storage tank housing; 702. a high thermal conductivity dielectric body; 703. a high specific heat medium body; 704. a heat storage working control valve of the heat storage tank; 705. a heat storage tank heat release work control valve; 706. a heat storage working pressurizing water pump of the heat storage tank; 707. the heat storage tank releases heat to work a pressurizing water pump; 708. a pressurizing water pump is arranged in the heat storage tank; 709. a heat storage tank partition;
801. heating the oil storage tank pipe; 802. a double-helix pipeline of a waste oil-gas well; 803. a heat storage tank spiral pipeline; 804. self-defining a dispersed pipeline at a using end;
901. a photovoltaic heat absorbing material; 902. a heat insulation material.
Detailed Description
As shown in fig. 1-5, the oil and gas field station thermal energy recycling system provided by the present invention comprises a thermal energy providing end, a thermal energy storing end, a thermal energy consuming end and a thermal energy transmission system;
the heat energy transmission system comprises a first heat source exchanger 201 and a second heat source exchanger 202, wherein the first heat source exchanger 201 and the second heat source exchanger 202 are both provided with an evaporation end and a condensation end; the heat energy transmission system also comprises a control valve 203 for a compressor concentrated heat exchanger to enter a second heat source exchanger, a control valve 204 for a compressor concentrated heat exchanger to enter a first heat source exchanger, a condensation end outlet control valve 207, a condensation end outlet pressurizing water pump 208 and a user-defined use end dispersing type pipeline 804; a first heat source exchanger internal compressor 205 is provided inside the first heat source exchanger 201, and a second heat source exchanger internal compressor 206 is provided inside the second heat source exchanger 202; the outlet of the compressor concentrated heat exchanger 4 is connected to the evaporation end of the first heat source exchanger 201 through a pipeline and is controlled by a control valve 204 of the compressor concentrated heat exchanger entering the first heat source exchanger; the outlet of the compressor concentrated heat exchanger 4 is connected to the evaporation end of the second heat source exchanger 202 through a pipeline and is controlled by a control valve 203 for the compressor concentrated heat exchanger to enter the second heat source exchanger; a condensation end outlet control valve 207 and a condensation end outlet pressure water pump 208 are sequentially connected and positioned at the condensation end outlet of the second heat source exchanger 202; the heating oil tank return pipeline 801 and the user-defined using end dispersion pipeline 804 are communicated with the outlet of the condensation end of the second heat source exchanger 202.
The heat energy providing end comprises a waste oil-gas well heat exchange end 1, a natural gas compressor unit 3 and a compressor concentrated heat exchanger 4, the waste oil-gas well heat exchange end 1, an evaporation end of a first heat source exchanger 201 and the compressor concentrated heat exchanger 4 form a closed loop, and the natural gas compressor unit 3 is communicated with the compressor concentrated heat exchanger 4; waste oil gas well heat transfer end 1 includes waste oil gas well double helix pipeline 802, first waste oil gas well 101, second waste oil gas well 102, oil gas well 103 is abandoned to the third waste, first waste oil gas well control valve 104, second waste oil gas well control valve 105, oil gas well control valve 106 is abandoned to the third waste, waste oil gas well heat transfer end main valve 107 and waste oil gas well heat transfer end booster water pump 108, waste oil gas well double helix pipeline 802 sets up at first waste oil gas well 101, inside second waste oil gas well 102 and the third waste oil gas well 103, waste oil gas well double helix pipeline 802 connects the evaporation end of first heat source exchanger 201 and second heat source exchanger 202 simultaneously, waste oil gas well heat transfer end main valve 107 and waste oil gas well heat transfer end booster water pump 108 are located waste oil gas well heat transfer end 1 line outlet department. A natural gas compressor unit pressurizing water pump 301 and a natural gas compressor unit control valve 302 are arranged on a communication pipeline between the natural gas compressor unit 3 and the compressor concentrated heat exchanger 4; the outlet of the compressor concentrated heat exchanger 4 is connected with a compressor concentrated heat exchanger outlet pressurizing water pump 401, and the inlet of the compressor concentrated heat exchanger 4 is sequentially connected with a compressor concentrated heat exchanger inlet pressurizing water pump 402 and a compressor concentrated heat exchanger inlet control valve 403; the outlet of the natural gas compressor unit 3 and the inlet of the compressor centralized heat exchanger 4 form a closed loop through a pipeline.
The heat energy storage end comprises a heat storage tank shell 701, a high heat-conducting medium body 702, a high specific heat medium body 703, a heat storage tank heat storage work control valve 704, a heat storage tank heat release work control valve 705, a heat storage tank heat storage work pressurizing water pump 706, a heat storage tank heat release work pressurizing water pump 707, a heat storage tank internal pressurizing water pump 708, a heat storage tank partition 709 and a heat storage tank spiral pipeline 803, a pressurized water pump 708 in the heat storage tank is arranged at an inlet of the heat storage tank shell 701, a partition 709 of the heat storage tank is horizontally arranged on the inner wall of the heat storage tank shell 701 to divide the internal space of the heat storage tank shell 701 into a first cabin and a second cabin from top to bottom, a high-heat-conductivity medium body 702 is positioned in the first cabin, a high-specific-heat-ratio medium body 703 is positioned in the second cabin, a spiral pipeline 803 of the heat storage tank penetrates through the high-heat-conductivity medium body 702, the partition 709 of the heat storage tank and the high-specific-heat-ratio medium body 703, and the spiral pipeline 803 of the heat storage tank is simultaneously connected with a condensation end of the first heat source exchanger 201 and an evaporation end of the second heat source exchanger 202; the heat storage tank shell 701 is made of a photovoltaic heat absorption material 901 and a heat insulation material 902, and is of a three-layer structure of photovoltaic heat absorption material, heat insulation material and photovoltaic heat absorption material.
When the heat storage end performs heat storage work, the outlet of the heat storage tank shell 701 is sequentially connected with a heat storage work control valve 704 of the heat storage tank and a heat storage work pressurizing water pump 706 of the heat storage tank, and a closed loop is formed through the condensation end of the first heat source exchanger 201; when the heat energy storage end performs heat release work, the outlet of the heat storage tank shell 701 is sequentially connected with a heat storage tank heat release work pressurization water pump 707 and a heat storage tank heat release work control valve 705, and a closed loop is formed through the evaporation end of the second heat source exchanger 202.
The heat energy consumption end comprises a user-defined using end 5, a heating oil storage tank return type pipeline 801 and an oil storage tank heating end 6, the user-defined using end 5, the condensation end of the second heat source exchanger 202 and the heating oil storage tank return type pipeline 801 form a closed loop, and the heating oil storage tank return type pipeline 801 is located in the oil storage tank heating end 6.
The user-defined using end 5 comprises a user-defined using end control valve 501 and a user-defined using end pressure water pump 502, wherein the user-defined using end control valve 501, the user-defined using end pressure water pump 502, the heating oil storage tank return pipeline 801, the second heat source exchanger 202 condensation end, the condensation end outlet control valve 207 and the condensation end outlet pressure water pump 208 are sequentially connected to form a loop. The user-defined using end 5 can be used for various heat energy requirements of an oil and gas field, for example, hot water is used, the heat energy is used in a diversified manner, and daily heat requirements of field work of the oil and gas field are met.
The oil tank heating terminal 6 includes a first heating oil tank 601, a second heating oil tank 602, a third heating oil tank 603, a first heating oil tank control valve 604, a second heating oil tank control valve 605, a third heating oil tank control valve 606, a first heating oil tank pressurizing water pump 607, a second heating oil tank pressurizing water pump 608 and a third heating oil tank pressurizing water pump 609, the first heating oil tank 601, the second heating oil tank 602 and the third heating oil tank 603 are in parallel connection, the first heating oil tank 601 connects the first heating oil tank control valve 604 and the first heating oil tank pressurizing water pump 607, the second heating oil tank 602 connects the second heating oil tank control valve 605 and the second heating oil tank pressurizing water pump 608, the third heating oil tank 603 connects the third heating oil tank control valve 606 and the third heating oil tank pressurizing water pump 609, the oil tank heating terminal 6 and the second heat exchanger 202 form a condensation closed loop, the pipeline of the heating end 6 of the oil storage tank is laid into a return structure. The oil storage tank heating end 6 comprises a plurality of heating oil storage tanks, and specific quantity is decided according to the oil storage capacity of an oil and gas field, and each heating oil storage tank is provided with a corresponding heating oil storage tank pressure water pump and a heating oil storage tank control valve, so that the using quantity of the heating oil storage tanks can be automatically regulated and controlled.
In this embodiment, the first heat source exchanger 201 is used to transfer a large amount of heat energy generated by the natural gas compressor unit 3 during operation and geothermal heat generated in the waste oil and gas wells into the heat storage tank shell 701 for storage, at this time, the heat energy of the natural gas compressor unit 3 is transferred to the compressor concentrated heat exchanger 4 in a concentrated manner, and the compressor concentrated heat exchanger 4 and the waste oil and gas wells are high-temperature heat sources of the first heat source exchanger 201.
The second heat source exchanger 202 is mainly used for directly using a part of heat energy generated by the natural gas compressor unit 3 collected by the compressor concentrated heat exchanger 4 during operation as a high-temperature heat source, and is formed by sequentially connecting the compressor concentrated heat exchanger 4, the compressor concentrated heat exchanger outlet pressurizing water pump 401, the compressor concentrated heat exchanger inlet second heat source exchanger control valve 203 and the compressor concentrated heat exchanger inlet control valve 403 through pipelines to form a loop, and transferring the heat energy to the oil storage tank heating end 6 and the user-defined use end 5 through the condensation end outlet control valve 207 and the condensation end outlet pressurizing water pump 208.
Another function of the second heat source exchanger 202 is that, when the natural gas compressor group 3 stops operating, the compressor concentration heat exchanger 4 no longer acts as a high-temperature heat source for the second heat source exchanger, by closing the heat storage tank heat storage work control valve 704 and the heat storage tank heat storage work pressurizing water pump 706, the heat storage tank heat release work control valve 705 and the heat storage tank heat release work pressurizing water pump 707 are opened, the heat energy storage end is switched to perform heat release work, the heat energy stored in the heat storage medium at the heat energy storage end is used as a high-temperature heat source, the heat energy storage end is the high-temperature heat source of the second heat source exchanger 202 at the moment, and the heat storage tank heat release work pressurizing water pump 707, the heat storage tank heat release work control valve 705, the heat storage tank internal pressurizing water pump 708, the condensation end outlet control valve 207 and the condensation end outlet pressurizing water pump 208 are connected through pipelines to form a loop, so that the heat energy is transmitted to the oil storage tank heating end 6 and the user-defined use end 5.
The heat transfer in this embodiment is all performed by the heat transfer medium in the pipeline, and the natural gas compression heat energy and the geothermal heat in the waste oil and gas well are stored by the inherent heat storage properties of the high heat-conducting medium body 702 and the high specific heat medium body 703 in the heat storage tank shell 701.
The pressurized water pumps in the embodiment are used for supplementing power to the heat transfer medium in the pipeline, so that the heat transfer medium can normally flow in the pipeline, and the heat energy transfer is realized.
The control valves in the embodiment are used for controlling the flow of the heat transfer medium in the pipeline, so that the heat transfer medium can flow into a place needing heat energy in the pipeline, useless heat energy transfer is avoided, the system is also protected safely, and when the system leaks from a local pipeline, the danger degree can be reduced to the minimum by closing the control valve of the leakage section.
The geothermal storage that the heat that this embodiment can produce among the oil gas field natural gas compression process and the abandonment oil gas well in heat storage tank shell 701 for the heating work of oil gas field heating oil storage tank increases customized user-terminal 5 simultaneously, is used for satisfying oil gas field daily heat demand. The heat that the make full use of oil gas field natural gas compression in-process produced and the geothermol power in the abandonment oil gas well, the installation overall arrangement of system is simple, carries out the secondary development to the abandonment oil gas well that the oil gas field has been developed and realizes the biggest development of oil gas field economy, and the most shallow stratum that buries of system's pipeline, fail safe nature is high, possess good application prospect.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. A heat energy recycling system for an oil and gas field station is characterized by comprising a heat energy providing end, a heat energy storage end, a heat energy consuming end and a heat energy transmission system;
the heat energy transmission system comprises a first heat source exchanger (201) and a second heat source exchanger (202), wherein the first heat source exchanger (201) and the second heat source exchanger (202) are both provided with an evaporation end and a condensation end;
the heat energy providing end comprises a waste oil-gas well heat exchanging end (1), a natural gas compressor unit (3) and a compressor concentrated heat exchanger (4), the waste oil-gas well heat exchanging end (1), an evaporation end of a first heat source exchanger (201) and the compressor concentrated heat exchanger (4) form a closed loop, and the natural gas compressor unit (3) is communicated with the compressor concentrated heat exchanger (4);
when the heat storage end carries out heat storage work, the heat storage end and a condensation end of the first heat source exchanger (201) form a closed loop; when the heat energy storage end performs heat release work, the heat energy storage end and the evaporation end of the second heat source exchanger (202) form a closed loop;
the heat energy consumption end comprises a user-defined using end (5), a heating oil storage tank return pipeline (801) and an oil storage tank heating end (6), the user-defined using end (5), a condensation end of the second heat source exchanger (202) and the heating oil storage tank return pipeline (801) form a closed loop, and the heating oil storage tank return pipeline (801) is located in the oil storage tank heating end (6).
2. The oil and gas field station thermal energy recycling system of claim 1, characterized in that the thermal energy transmission system further comprises a compressor concentrated heat exchanger inlet second heat source exchanger control valve (203), a compressor concentrated heat exchanger inlet first heat source exchanger control valve (204), a condensation end outlet control valve (207), a condensation end outlet pressurizing water pump (208) and a user-defined use end decentralized pipeline (804); a first heat source exchanger internal compressor (205) is arranged inside the first heat source exchanger (201), and a second heat source exchanger internal compressor (206) is arranged inside the second heat source exchanger (202); an outlet of the compressor centralized heat exchanger (4) is connected to an evaporation end of the first heat source exchanger (201) through a pipeline and is controlled by a control valve (204) of the compressor centralized heat exchanger to the first heat source exchanger; the outlet of the compressor centralized heat exchanger (4) is connected to the evaporation end of a second heat source exchanger (202) through a pipeline and is controlled by a control valve (203) of the compressor centralized heat exchanger to the second heat source exchanger; a condensation end outlet control valve (207) and a condensation end outlet pressurizing water pump (208) are sequentially connected and positioned at the condensation end outlet of the second heat source exchanger (202); and a heating oil storage tank return pipeline (801) and a self-defined using end dispersion pipeline (804) are communicated with an outlet of a condensation end of the second heat source exchanger (202).
3. The oil and gas field station heat energy recycling system of claim 2, characterized in that the waste oil and gas well heat-exchanging end (1) comprises a waste oil and gas well double-spiral pipeline (802), a first waste oil and gas well (101), a second waste oil and gas well (102), a third waste oil and gas well (103), a first waste oil and gas well control valve (104), a second waste oil and gas well control valve (105), a third waste oil and gas well control valve (106), a waste oil and gas well heat-exchanging end main valve (107) and a waste oil and gas well heat-exchanging end pressurizing water pump (108), the waste oil and gas well double-spiral pipeline (802) is arranged inside the first waste oil and gas well (101), the second waste oil and gas well (102) and the third waste oil and gas well (103), the waste oil and gas well double-spiral pipeline (802) is simultaneously connected with the evaporation ends of the first heat source exchanger (201) and the second heat source exchanger (202), the waste oil and gas well heat exchange end master valve (107) and the waste oil and gas well heat exchange end pressurizing water pump (108) are positioned at the line outlet of the waste oil and gas well heat exchange end (1).
4. The oil and gas field station thermal energy recycling system of claim 3, wherein a natural gas compressor set pressurizing water pump (301) and a natural gas compressor set control valve (302) are arranged on a pipeline communicating the natural gas compressor set (3) and the compressor centralized heat exchanger (4); the outlet of the compressor concentrated heat exchanger (4) is connected with a compressor concentrated heat exchanger outlet pressurizing water pump (401), and the inlet of the compressor concentrated heat exchanger (4) is sequentially connected with a compressor concentrated heat exchanger inlet pressurizing water pump (402) and a compressor concentrated heat exchanger inlet control valve (403); the outlet of the natural gas compressor unit (3) and the inlet of the compressor centralized heat exchanger (4) form a loop closed loop through a pipeline.
5. The oil and gas field station heat energy recycling system of claim 4, characterized in that the heat energy storage end comprises a heat storage tank shell (701), a high heat-conducting medium body (702), a high specific heat medium body (703), a heat storage tank heat storage work control valve (704), a heat storage tank heat release work control valve (705), a heat storage tank heat storage work pressurizing water pump (706), a heat storage tank heat release work pressurizing water pump (707), a heat storage tank internal pressurizing water pump (708), a heat storage tank partition plate (709) and a heat storage tank spiral pipeline (803), the heat storage tank internal pressurizing water pump (708) is arranged at the inlet of the heat storage tank shell (701), the heat storage tank partition plate (709) is horizontally arranged on the inner wall of the heat storage tank shell (701) to divide the internal space of the heat storage tank shell (701) into a first cabin and a second cabin from top to bottom, the high heat-conducting medium body (702) is positioned in the first cabin, the high-specific-heat-ratio medium body (703) is positioned in the second cabin, the heat storage tank spiral pipeline (803) penetrates through the high-specific-heat-ratio medium body (702), the heat storage tank partition plate (709) and the high-specific-heat-ratio medium body (703), and the heat storage tank spiral pipeline (803) is simultaneously connected with the condensation end of the first heat source exchanger (201) and the evaporation end of the second heat source exchanger (202);
when the heat storage end carries out heat storage work, an outlet of a shell (701) of the heat storage tank is sequentially connected with a heat storage work control valve (704) of the heat storage tank and a heat storage work pressurizing water pump (706) of the heat storage tank, and a closed loop is formed through a condensation end of a first heat source exchanger (201); when the heat storage end performs heat release work, the outlet of the heat storage tank shell (701) is sequentially connected with a heat storage tank heat release work pressurizing water pump (707) and a heat storage tank heat release work control valve (705), and a closed loop is formed through the evaporation end of the second heat source exchanger (202).
6. The oil and gas field station thermal energy recycling system of claim 5, wherein the user-defined use end (5) comprises a user-defined use end control valve (501) and a user-defined use end pressurized water pump (502), and the user-defined use end control valve (501), the user-defined use end pressurized water pump (502), the heating oil storage tank return pipeline (801), the condensation end of the second heat source exchanger (202), the condensation end outlet control valve (207) and the condensation end outlet pressurized water pump (208) are sequentially connected to form a loop.
7. The oil and gas field station thermal energy recycling system of claim 6, characterized in that the oil storage tank heating end (6) comprises a first heating oil storage tank (601), a second heating oil storage tank (602), a third heating oil storage tank (603), a first heating oil storage tank control valve (604), a second heating oil storage tank control valve (605), a third heating oil storage tank control valve (606), a first heating oil storage tank pressurizing water pump (607), a second heating oil storage tank pressurizing water pump (608) and a third heating oil storage tank pressurizing water pump (609), the first heating oil storage tank (601), the second heating oil storage tank (602) and the third heating oil storage tank (603) are in parallel connection, the first heating oil storage tank (601) is connected with the first heating oil storage tank control valve (604) and the first heating oil storage tank pressurizing water pump (607), the second heating oil storage tank (602) is connected with the second heating oil storage tank control valve (605) and the second heating oil storage tank pressurizing water pump (608), and the third heating oil storage tank (603) is connected with a third heating oil storage tank control valve (606) and a third heating oil storage tank pressurizing water pump (609), a heating end (6) of the oil storage tank and a condensing end of the second heat source exchanger (202) form a closed loop, and a pipeline of the heating end (6) of the oil storage tank is laid to form a loop structure.
8. The oil and gas field station thermal energy recycling system of claim 6, wherein the thermal storage tank shell (701) is made of photovoltaic heat absorbing material (901) and thermal insulation material (902) and has a three-layer structure of photovoltaic heat absorbing material-thermal insulation material-photovoltaic heat absorbing material.
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