CN111852406B - Heat-shock-method natural gas hydrate exploitation device and method based on solar energy-flue gas waste heat double heat source heat pump - Google Patents
Heat-shock-method natural gas hydrate exploitation device and method based on solar energy-flue gas waste heat double heat source heat pump Download PDFInfo
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- CN111852406B CN111852406B CN202010694018.1A CN202010694018A CN111852406B CN 111852406 B CN111852406 B CN 111852406B CN 202010694018 A CN202010694018 A CN 202010694018A CN 111852406 B CN111852406 B CN 111852406B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 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 title claims abstract description 31
- 239000002918 waste heat Substances 0.000 title claims abstract description 26
- 239000003546 flue gas Substances 0.000 title claims abstract description 14
- 239000013535 sea water Substances 0.000 claims abstract description 30
- 239000000779 smoke Substances 0.000 claims abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 144
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 28
- 239000010865 sewage Substances 0.000 claims description 27
- 230000008020 evaporation Effects 0.000 claims description 21
- 238000001704 evaporation Methods 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000003345 natural gas Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 230000035939 shock Effects 0.000 claims description 9
- 239000003507 refrigerant Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 abstract description 3
- 230000000638 stimulation Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 150000004677 hydrates Chemical class 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- -1 natural gas hydrates Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
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- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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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
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention belongs to the technical field of ocean oil and gas resource development, and provides a thermal excitation method natural gas hydrate exploitation device and method based on a solar energy-flue gas waste heat double-heat-source heat pump. The device comprises a hydrate exploitation system, a solar energy-smoke waste heat mixed heat source heat collection system, a sea water source heat collecting and radiating system and a heat pump circulating system, wherein the four systems are matched with each other, the sea water source heat collecting and radiating system conveys heat generated by the heat pump circulating system to the hydrate exploitation system, and the solar energy-smoke waste heat mixed heat source heat collection system provides a heat source for the heat pump circulating system. The invention realizes the high-efficiency utilization of the solar energy and the flue gas waste heat in the ocean area, and provides a high-efficiency feasible method for the exploitation of the ocean natural gas hydrate by combining the heat pump technology.
Description
Technical Field
The invention belongs to the technical field of ocean oil and gas resource development, aims at solving the heat source problem existing in the existing ocean natural gas hydrate thermal stimulation method exploitation, matches the flue gas waste heat of an offshore oil field gas turbine generator with abundant solar energy on the sea, improves the grade by a heat pump technology, is used for exploiting natural gas hydrate by the thermal stimulation method, and provides a thermal stimulation method ocean natural gas hydrate exploitation device and method based on a solar energy-flue gas waste heat pump.
Background
Natural gas hydrate, commonly called as combustible ice, is a substance with a cage-shaped crystal structure formed by hydrocarbon substances and water under the conditions of low temperature and high pressure, and only CO is contained in combustion waste gas2And water, and has no pollution to the environment. Under the standard condition, the gas hydrate of unit volume can store methane gas of 164 unit volumes, the calorific value is very high, is a very high-quality energy, can be used for replacing traditional fossil energy such as coal. However, the level of commercial production of gas hydrates is not yet achieved, and a feasible production method is urgently needed. The current natural gas hydrate exploitation technologies mainly comprise a depressurization exploitation method, a heat shock method and a chemical agent injection method. The heat shock mining method has high efficiency and is easy to realize, but the problems of high energy consumption of a heat source and low heat utilization efficiency are not well solved so far.
The heat pump is a device for transferring heat from low temperature to high temperature by using heat energy and mechanical energy as compensation, and can improve the energy quality. Meanwhile, solar energy is renewable energy, is inexhaustible, clean and pollution-free. Although the total radiation amount of sunlight reaching the earth surface is large, the energy flux density is low, in a system for exploiting hydrates by a thermal shock method, solar energy has instability and is greatly influenced by factors such as day and night changes, weather, regional differences and the like, smoke waste heat of a gas turbine generator of an offshore oil field is used as supplement, the waste heat can be utilized,
disclosure of Invention
Based on the background, the invention provides a thermal shock method marine natural gas hydrate exploitation device and method based on a flue gas waste heat absorption heat pump, wherein flue gas waste heat and solar energy of a marine oil field gas turbine generator are used as low-temperature double heat sources of the absorption heat pump to release high-grade heat, and a thermal shock method horizontal well is combined to exploit marine natural gas hydrate.
The technical scheme of the invention is as follows:
a thermal excitation method natural gas hydrate exploitation device based on a solar energy-smoke waste heat double-heat-source heat pump comprises a hydrate exploitation system, a solar energy-smoke waste heat mixed heat source heat collection system, a seawater source heat collection and heat dissipation system and a heat pump circulation system; the four systems are mutually matched, the seawater source heat collecting and radiating system conveys heat generated by the heat pump circulating system to the hydrate mining system, and the solar energy-flue gas waste heat mixed heat source heat collecting system provides a heat source for the heat pump circulating system;
the hydrate exploitation system mainly comprises an exploitation well 37, an injection well 32, a high-pressure pump 30, a heat-insulating layer 29, a spherical spray head 35, a gas-liquid separator 23, a natural gas storage tank 22, a sewage storage tank 24, a liquid level alarm 25 and a seawater suction pump 26; the production well 37 is an L-shaped well, the outlet end of the vertical section 33 of the production well is connected with the gas-liquid separator 23, the vertical section 33 of the production well penetrates through the seawater layer 31 to reach the natural gas hydrate reservoir layer 34, and the horizontal section 36 of the production well is positioned in the natural gas hydrate reservoir layer 34; the natural gas storage tank 22, the gas-liquid separator 23 and the sewage storage tank 24 are connected in sequence; the heat-insulating layer 29 adopts vacuum heat insulation; the inlet of the injection well 32 is connected with a high-pressure pump 30, the outlet end of the high-pressure pump is positioned in a natural gas hydrate reservoir 34, the high-pressure pump 30 is positioned in the heat-insulating layer 29, and the lower end of the injection well 32 is provided with a spherical spray head 35; the liquid level alarm 25 feeds back the real-time liquid level to the seawater suction pump 26;
the solar energy-smoke waste heat mixed heat source heat collection system mainly comprises a direct contact type heat exchange tower 2, a cold air exhaust pipe 1, a heat source water exhaust pipe 3, a steam turbine 6, an engine 7, a compressor 8, a first heat source water pump 4, a solar heat collection plate 5, a second heat source water pump 9, a heat source water insulation box 15, a temperature detector 16, an evaporation heat exchanger 17, a signal feedback device 20 and a valve; the cold air calandria 1 and the heat source water calandria 3 are hermetically welded with the direct contact type heat exchange tower 2; the inlet end of the heat source water draining pipe 3 is connected with the heat source water outlet end of the evaporation heat exchanger 17 through a first heat source water pump 4; the outlet end of the heat source water discharge pipe 3 is connected with the heat source water inlet end of the evaporation heat exchanger 17; the inlet end of the solar heat collecting plate 5 is connected with the heat source water outlet end of the evaporation heat exchanger 17 through a second heat source water pump 9; the outlet end of the solar heat collecting plate 5 is connected with the inlet end of heat source water of the evaporation heat exchanger 17; the solar heat collecting plate 5 is connected with the heat source water discharging pipe 3 in parallel; the heat source water insulation box 15 is respectively connected with the heat source water inlet and the heat source water outlet of the evaporation heat exchanger 17 through an inlet valve V1 and an outlet valve V2; the inlet end of the cold air exhaust pipe 1 is connected with cold air, and the outlet end of the cold air exhaust pipe is sequentially connected with a steam turbine 6, an engine 7 and a compressor 8; the temperature detector 16 and the signal feedback device 20 are connected with the inlet valve V1 and the outlet valve V2 in sequence;
the seawater source heat collection and heat dissipation system mainly comprises a condenser 13, a siphon tank 11, a siphon 18, a sewage storage tank 24, a liquid level warning device 25, a first heat sink water pump 10, a second heat sink water pump 21, a heat source water insulation box 15 and a temperature detector 16; the heat water-collecting outlet end of the condenser 13 is connected with the upper siphon inlet end of the siphon tank 11 through a siphon tube 18, and the heat water-collecting inlet end of the condenser 13 is connected with the lower siphon outlet end of the siphon tank 11 through the siphon tube 18; the refrigerant vapor outlet end of the evaporator 14 is connected with the suction port of the compressor 8, and the exhaust port of the compressor 8 is connected with the refrigerant inlet end of the condenser 13; the refrigerant outlet end of the condenser 13 is connected with the refrigerant inlet end of the evaporator 14 through a throttle valve 19; the heat water collecting outlet end of the siphon tank 11 is connected with the heat water collecting inlet end of the hot water storage tank 27 through a first heat water collecting pump 10; the heat water-converging inlet end of the siphon tank 11 is connected with the heat water-converging outlet end of the sewage reservoir tank 24 through a second heat water-converging pump 21; the temperature alarm 28 is arranged on the hot water storage tank 27 and is used for monitoring the temperature of the hot water storage tank 27 in real time; the hot water reservoir tank 27 is connected to a high pressure pump 30.
A method for exploiting hydrates based on solar thermal shock method of the absorption heat pump, said method comprises three cycles of water cycle of heat source, hot water-collecting cycle and heat pump cycle;
the heat source water circulation: the system is divided into two heat sources of flue gas waste heat and a solar heat collecting plate which are connected in parallel for supplying heat; the first heat source water pump 4 supplies cold water into the heat source water discharging pipe 3 for heating; the second heat source water pump 9 supplies cold water to the solar heat collecting plate 5 for heating; the signal feedback device 20 controls the opening and closing of the inlet valve V1 and the outlet valve V2 according to the temperature of the evaporative heat exchanger 17 measured by the temperature detector 16; when the temperature of the evaporation heat exchanger 17 reaches the set temperature, the inlet valve V1 is opened, the outlet valve V2 is closed, and a part of hot water from two heat sources flows into the heat source water insulation box 15 for temporary storage; when the temperature of the evaporation heat exchanger 17 is lower than the set temperature, the inlet valve V1 is closed, the outlet valve V2 is opened, the heat source water insulation box 15 and hot water from the double heat sources supply water to the condensation heat exchanger 12 together, and therefore the temperature of the evaporation heat exchanger 17 is guaranteed;
the hot water collection circulation: the second heat-sink water pump 21 sucks the heat-sink water in the sewage storage tank 24 into the siphon tank 11, and then the heat-sink water carries out heat convection through the siphon 18, so that the temperature is increased; after the temperature is raised, the hot water enters a hot water storage tank 27 through a first heat sink pump 10 for heat preservation and storage; the temperature alarm 28 monitors the real-time temperature of the water in the hot water storage tank 27 and feeds the real-time temperature back to the hot water storage tank 27, and when the temperature of the water in the hot water storage tank 27 is detected to be reduced, the hot water storage tank 27 heats the water to the initial temperature; when the hydrate exploitation system operates, water in the hot water storage tank 27 flows into the heat insulation layer 29, is pressurized by the high-pressure pump 30, enters the water injection well 32, reaches the natural gas hydrate reservoir 34 through the spherical spray head 35, and is heated and decomposed; the decomposed product is recovered to the sea surface through the horizontal section 36 and the vertical section 33 of the production well, and is subjected to gas-liquid separator 23 to obtain relatively pure natural gas, and the relatively pure natural gas is stored in the natural gas storage tank 22; the sewage enters the sewage storage tank 24 for cyclic utilization; the liquid level alarm 25 on the sewage storage tank 24 feeds back the real-time liquid level to the seawater suction pump, and when the water amount in the sewage storage tank 24 is in shortage, the seawater suction pump 26 starts to work to suck the seawater to ensure that the liquid level in the sewage storage tank 24 is normal.
The invention has the beneficial effects that: the invention provides a thermal excitation method natural gas hydrate exploitation device and method based on a solar energy-smoke waste heat double-heat-source heat pump, solves the problem of energy consumption in the exploitation process of natural gas hydrates, fully utilizes solar energy and smoke waste heat, provides a feasible method for realizing large-scale exploitation of the natural gas hydrates, and has important significance for the follow-up research of the natural gas hydrate exploitation method.
Drawings
Fig. 1 is a schematic diagram of a thermal stimulation method natural gas hydrate exploitation device based on a solar energy-flue gas waste heat dual-heat-source heat pump.
Fig. 2 is a schematic diagram of a ball-type spray nozzle of a solar thermal shock hydrate exploitation device based on an absorption heat pump.
In the figure: 1, a cold air exhaust pipe; 2 directly contacting the heat exchange tower; 3 heat source water drain pipes; 4, a first heat source water pump; 5, a solar heat collecting plate; 6, a steam turbine; 7, an engine; 8, a compressor; 9 a second heat source water pump; 10 a first heat sink pump; 11 a siphon tank; 12 a condensing heat exchanger; 13 a condenser; 14 an evaporator; 15 heat source water insulation boxes; 16 a temperature detector; 17 an evaporative heat exchanger; 18 siphon tube; 19 a throttle valve; 20 a signal feedback device; 21 a second heat sink pump; 22 a natural gas reservoir tank; 23 a gas-liquid separator; 24 a sewage storage tank; 25 liquid level alarm; 26 seawater suction pump; 27 a hot water reservoir tank; 28 temperature alarm; 29 a vacuum layer; 30 a high pressure pump; 31 a sea water layer; 32 injection wells; 33 vertical section of the production well; 33 a natural gas hydrate reservoir; 35 a spherical nozzle; 36 producing well horizontal sections; 37 producing a well; v1 inlet valve; v2 outlet valve.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Fig. 1 is a schematic diagram of a thermal stimulation method natural gas hydrate exploitation device based on a solar energy-flue gas waste heat dual-heat source heat pump: the device is connected according to the device shown in the figure, and the device is used for natural gas hydrate exploitation.
The heat source water discharging pipe 3 and the solar heat collecting plate 5 are connected in parallel at two ends of the heat source water insulation box, and the heat source water pump 14 supplies cold water to the heat source water discharging pipe for heating; the heat source water pump 29 supplies cold water to the solar heat collecting plate for heating; the signal feedback device 20 can control the opening and closing of the inlet valve V1 and the outlet valve V2 according to the temperature data of the evaporative heat exchanger 17 measured by the temperature detector 16; when the temperature of the evaporation heat exchanger 17 reaches the set temperature, the inlet valve V1 is opened, the outlet valve V2 is closed, and a part of hot water from the double heat sources flows into the heat source water insulation box 15 for temporary storage; when the temperature of the evaporation heat exchanger 17 is lower than the set temperature, the inlet valve V1 is closed, the outlet valve V2 is opened, the heat source water insulation box 15 and hot water from a double heat source supply water to the condensation heat exchanger together, and therefore the temperature of the evaporation heat exchanger 17 is guaranteed; through a heat pump circulating system, a heat-collecting evaporator 14 absorbs heat energy of heat source water, and a condenser 13 heats heat-collecting water; the heat sink water pump 221 sucks the heat sink water in the seawater and sewage temporary storage tank 19 into the siphon tank 11, and then carries out heat convection through the siphon pipe 18 to increase the temperature; after the temperature is raised, the hot water enters the hot water storage heat retainer 27 through the heat collecting pump 110 for heat preservation and storage; the temperature monitoring alarm 28 monitors the real-time temperature of the water in the hot water storage heat retainer 27 and feeds the real-time temperature back to the hot water storage heat retainer 27, and when the temperature of the water in the hot water storage heat retainer 27 is detected to be reduced, the hot water storage heat retainer 27 heats the water to the original temperature; when the hydrate exploitation system operates, water in the hot water storage heat retainer 27 flows into the heat insulation layer 29, is pressurized by the high-pressure pump 30, enters the water injection well 32, reaches the natural gas hydrate reservoir 34 through the spherical spray head 35, and is heated and decomposed; the decomposed product is recovered to the sea surface through the horizontal section 36 and the vertical section 33 of the production well, and is subjected to gas-liquid separator 23 to obtain relatively pure natural gas, and the relatively pure natural gas is stored in the natural gas storage tank 22; the sewage enters a seawater sewage temporary storage tank 24 for cyclic utilization; the liquid level indicator 25 on the seawater sewage temporary storage tank 24 feeds back the real-time liquid level to the seawater suction pump, and when the water amount in the seawater sewage temporary storage tank 24 is in shortage, the seawater suction pump 26 starts to work to suck seawater to ensure that the liquid level in the seawater sewage temporary storage tank 24 is normal.
Claims (2)
1. A thermal shock method natural gas hydrate exploitation device based on a solar energy-smoke waste heat double heat source heat pump is characterized by comprising a hydrate exploitation system, a solar energy-smoke waste heat mixed heat source heat collection system, a seawater source heat collection and heat dissipation system and a heat pump circulation system; the four systems are mutually matched, the seawater source heat collecting and radiating system conveys heat generated by the heat pump circulating system to the hydrate mining system, and the solar energy-flue gas waste heat mixed heat source heat collecting system provides a heat source for the heat pump circulating system;
the hydrate exploitation system mainly comprises an exploitation well (37), an injection well (32), a high-pressure pump (30), a heat-insulating layer (29), a spherical spray head (35), a gas-liquid separator (23), a natural gas storage tank (22), a sewage storage tank (24), a liquid level warning indicator (25) and a seawater suction pump (26); the production well (37) is an L-shaped well, the outlet end of the vertical section (33) of the production well is connected with the gas-liquid separator (23), the vertical section (33) of the production well penetrates through the seawater layer (31) to reach the natural gas hydrate reservoir stratum (34), and the horizontal section (36) of the production well is positioned in the natural gas hydrate reservoir stratum (34); the natural gas storage tank (22), the gas-liquid separator (23) and the sewage storage tank (24) are connected in sequence; the heat-insulating layer (29) adopts vacuum heat insulation; the inlet of the injection well (32) is connected with a high-pressure pump (30), the outlet end of the high-pressure pump is positioned in a natural gas hydrate reservoir (34), the high-pressure pump (30) is positioned in the heat-insulating layer (29), and the lower end of the injection well (32) is provided with a spherical spray head (35); the liquid level alarm (25) feeds back the real-time liquid level to the seawater suction pump (26);
the solar energy-smoke waste heat mixed heat source heat collection system mainly comprises a direct contact type heat exchange tower (2), a cold air exhaust pipe (1), a heat source water exhaust pipe (3), a steam turbine (6), an engine (7), a compressor (8), a first heat source water pump (4), a solar heat collection plate (5), a second heat source water pump (9), a heat source water insulation box (15), a temperature detector (16), an evaporation heat exchanger (17), a signal feedback device (20) and a valve; the cold air calandria (1) and the heat source water calandria (3) are hermetically welded with the direct contact type heat exchange tower (2); the inlet end of the heat source water discharging pipe (3) is connected with the heat source water outlet end of the evaporation heat exchanger (17) through a first heat source water pump (4); the outlet end of the heat source water discharge pipe (3) is connected with the heat source water inlet end of the evaporation heat exchanger (17); the inlet end of the solar heat collection plate (5) is connected with the heat source water outlet end of the evaporation heat exchanger (17) through a second heat source water pump (9); the outlet end of the solar heat collecting plate (5) is connected with the heat source water inlet end of the evaporation heat exchanger (17); the solar heat collecting plate (5) is connected with the heat source water discharging pipe (3) in parallel; the heat source water insulation box (15) is respectively connected with the heat source water inlet and the heat source water outlet of the evaporation heat exchanger (17) through an inlet valve (V1) and an outlet valve (V2); the inlet end of the cold air exhaust pipe (1) is connected with cold air, and the outlet end of the cold air exhaust pipe is sequentially connected with a steam turbine (6), an engine (7) and a compressor (8); the temperature detector (16) and the signal feedback device (20) are sequentially connected with the inlet valve (V1) and the outlet valve (V2);
the seawater source heat collection and heat dissipation system mainly comprises a condenser (13), a siphon tank (11), a siphon (18), a sewage storage tank (24), a liquid level warning device (25), a first heat collection pump (10), a second heat collection pump (21), a heat source water insulation box (15) and a temperature detector (16); the hot water-collecting outlet end of the condenser (13) is connected with the upper siphon inlet end of the siphon tank (11) through a siphon (18), and the hot water-collecting inlet end of the condenser (13) is connected with the lower siphon outlet end of the siphon tank (11) through the siphon (18); the refrigerant vapor outlet end of the evaporator (14) is connected with the suction port of the compressor (8), and the exhaust port of the compressor (8) is connected with the refrigerant inlet end of the condenser (13); the refrigerant outlet end of the condenser (13) is connected with the refrigerant inlet end of the evaporator (14) through a throttle valve (19); the hot water collection outlet end of the siphon tank (11) is connected with the hot water collection inlet end of the hot water storage tank (27) through a first hot water collection pump (10); the heat water-collecting inlet end of the siphon tank (11) is connected with the heat water-collecting outlet end of the sewage storage tank (24) through a second heat water-collecting pump (21); the temperature alarm (28) is arranged on the hot water storage tank (27) and is used for monitoring the temperature of the hot water storage tank (27) in real time; the hot water storage tank (27) is connected with a high-pressure pump (30).
2. A method for exploiting a heat shock method natural gas hydrate exploitation device according to claim 1, wherein the method comprises three cycles of a heat source water cycle, a heat sink water cycle and a heat pump cycle;
the heat source water circulation: the system is divided into two heat sources of flue gas waste heat and a solar heat collecting plate which are connected in parallel for supplying heat; the first heat source water pump (4) supplies cold water to the heat source water discharge pipe (3) for heating; a second heat source water pump (9) supplies cold water to the solar heat collecting plate (5) for heating; the signal feedback device (20) controls the opening and closing of the inlet valve (V1) and the outlet valve (V2) according to the temperature of the evaporative heat exchanger (17) measured by the temperature detector (16); when the temperature of the evaporation heat exchanger (17) reaches the set temperature, an inlet valve (V1) is opened, an outlet valve (V2) is closed, and a part of hot water from two heat sources flows into a heat source water insulation box (15) for temporary storage; when the temperature of the evaporation heat exchanger (17) is lower than the set temperature, the inlet valve (V1) is closed, the outlet valve (V2) is opened, and the heat source water insulation box (15) and hot water from a double heat source supply water to the condensation heat exchanger (12) together so as to ensure the temperature of the evaporation heat exchanger (17);
the hot water collection circulation: the second heat-sink water pump (21) sucks the heat-sink water in the sewage storage tank (24) into the siphon tank (11), and then the heat-sink water carries out convective heat transfer through the siphon (18) to increase the temperature; after the temperature is raised, the hot water enters a hot water storage tank (27) through a first heat-sink water pump (10) for heat preservation and storage; the temperature alarm (28) monitors the real-time temperature of water in the hot water storage tank (27) and feeds the real-time temperature back to the hot water storage tank (27), and when the temperature of the water in the hot water storage tank (27) is detected to be reduced, the hot water storage tank (27) heats the water to the initial temperature; when the hydrate exploitation system is operated, water in the hot water storage tank (27) flows into the heat insulation layer (29), is pressurized by the high-pressure pump (30) and enters the injection well (32), and reaches the natural gas hydrate storage layer (34) through the spherical spray head (35), so that the natural gas hydrate is heated and decomposed; the decomposed products are recovered to the sea surface through a horizontal section (36) of the production well and a vertical section (33) of the production well, and pure natural gas is obtained after passing through a gas-liquid separator (23) and stored in a natural gas storage tank (22); sewage enters a sewage storage tank (24) for cyclic utilization; a liquid level alarm (25) on the sewage storage tank (24) feeds back the real-time liquid level to the seawater suction pump, and when the water amount in the sewage storage tank (24) is in shortage, the seawater suction pump (26) starts to work to suck seawater to ensure that the liquid level in the sewage storage tank (24) is normal.
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| CN202010694018.1A CN111852406B (en) | 2020-07-17 | 2020-07-17 | Heat-shock-method natural gas hydrate exploitation device and method based on solar energy-flue gas waste heat double heat source heat pump |
| PCT/CN2020/111716 WO2022011796A1 (en) | 2020-07-17 | 2020-08-27 | Efficient natural gas hydrate exploitation system capable of compensating for heat of reservoir stratum by using flue gas waste heat/solar energy absorption heat pump |
| US17/415,986 US11879310B2 (en) | 2020-07-17 | 2020-08-27 | Efficient gas hydrate production system using flue gas waste heat / solar absorption heat pump to compensate reservoir heat |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1690360A (en) * | 2004-04-21 | 2005-11-02 | 中国科学院过程工程研究所 | Method and system for exploiting seabed natural gas hydrates |
| US6994159B2 (en) * | 2003-11-04 | 2006-02-07 | Charles Wendland | System for extracting natural gas hydrate |
| CN102704894A (en) * | 2012-05-30 | 2012-10-03 | 上海交通大学 | In-situ submarine natural gas hydrate exploiting device and method thereof |
| CN103334729A (en) * | 2013-04-25 | 2013-10-02 | 李贤明 | Exploitation method and system of seabed methane hydrate |
| CN104196508A (en) * | 2014-09-18 | 2014-12-10 | 哈尔滨工程大学 | Rapid thermal excitation exploitation device for natural gas hydrate |
| CN104481467A (en) * | 2014-12-02 | 2015-04-01 | 辽宁石油化工大学 | Method and device for exploiting combustible ice in seabed |
| CN105840159A (en) * | 2016-03-24 | 2016-08-10 | 西南石油大学 | Natural gas hydrate extraction device and extraction method based on solar technology |
| CN207394816U (en) * | 2017-08-09 | 2018-05-22 | 新疆工程学院 | A kind of flue gas waste heat recovery system of Driven by Solar Energy jet type heat pump Xun Huan |
| CN108088099A (en) * | 2017-12-20 | 2018-05-29 | 安徽建筑大学 | A kind of solar energy and recuperation of heat combined type robot control system(RCS) |
| CN207829866U (en) * | 2017-12-07 | 2018-09-07 | 华南理工大学 | Gas hydrate exploitation device based on solar energy-seawater energy combined heat |
-
2020
- 2020-07-17 CN CN202010694018.1A patent/CN111852406B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6994159B2 (en) * | 2003-11-04 | 2006-02-07 | Charles Wendland | System for extracting natural gas hydrate |
| CN1690360A (en) * | 2004-04-21 | 2005-11-02 | 中国科学院过程工程研究所 | Method and system for exploiting seabed natural gas hydrates |
| CN102704894A (en) * | 2012-05-30 | 2012-10-03 | 上海交通大学 | In-situ submarine natural gas hydrate exploiting device and method thereof |
| CN103334729A (en) * | 2013-04-25 | 2013-10-02 | 李贤明 | Exploitation method and system of seabed methane hydrate |
| CN104196508A (en) * | 2014-09-18 | 2014-12-10 | 哈尔滨工程大学 | Rapid thermal excitation exploitation device for natural gas hydrate |
| CN104481467A (en) * | 2014-12-02 | 2015-04-01 | 辽宁石油化工大学 | Method and device for exploiting combustible ice in seabed |
| CN105840159A (en) * | 2016-03-24 | 2016-08-10 | 西南石油大学 | Natural gas hydrate extraction device and extraction method based on solar technology |
| CN207394816U (en) * | 2017-08-09 | 2018-05-22 | 新疆工程学院 | A kind of flue gas waste heat recovery system of Driven by Solar Energy jet type heat pump Xun Huan |
| CN207829866U (en) * | 2017-12-07 | 2018-09-07 | 华南理工大学 | Gas hydrate exploitation device based on solar energy-seawater energy combined heat |
| CN108088099A (en) * | 2017-12-20 | 2018-05-29 | 安徽建筑大学 | A kind of solar energy and recuperation of heat combined type robot control system(RCS) |
Non-Patent Citations (2)
| Title |
|---|
| 天然气水合物开采技术研究进展及思考;思娜等;《中国石油勘探》;20160930;第21卷(第5期);52-61 * |
| 天然气水合物开采方法的研究综述;张旭辉等;《中国科学：物理学 力学 天文学》;20191231;第49卷(第3期);1-22 * |
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