CN106123367A - A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy - Google Patents
A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy Download PDFInfo
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- CN106123367A CN106123367A CN201610464873.7A CN201610464873A CN106123367A CN 106123367 A CN106123367 A CN 106123367A CN 201610464873 A CN201610464873 A CN 201610464873A CN 106123367 A CN106123367 A CN 106123367A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
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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
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T2010/50—Component parts, details or accessories
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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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- 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
- Y02E10/44—Heat exchange systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention relates to the natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy and geothermal energy, including pipeline heat-exchanger rig, solar energy heat collector and earth source heat pump, pipeline heat-exchanger rig forms by natural gas underground pipe and for the heat exchanging medium passage with natural gas underground pipe heat exchange, the two ends of heat exchanging medium passage connect heat transferring medium main line, on heat transferring medium main line, parallel connection is provided with the first arm and the second arm, first arm is provided with solar energy heat collector, and the second heat exchange arm is provided with earth source heat pump.Compared with prior art, the present invention is by solar energy heat collector and earth source heat pump reasonable combination, it is capable of being prevented effectively from natural gas underground pipe generation frost heave, make full use of regenerative resource, the win-win situation of minimizing high-grade power consumption, and its obvious environment benefit, and without long-distance sand transport heat, meeting the fundamental state policy of the current energy-saving and emission-reduction of China, the present invention has the good energy saving space and more wide practical value.
Description
Technical field
The invention belongs to natural gas line technical field, be specifically related to the natural gas ground of a kind of combination solar energy and geothermal energy
Pipe laying road anti-freeze expansion system.
Background technology
Natural gas is the high-efficiency cleaning energy, and the proportion in energy resource structure strengthens day by day.And due to natural gas resource and
Market distribution is the most uneven so that the transport of natural gas has become the important step that Gas Industry develops.At present, big mouth
Footpath, high pressure, distance have been the general trends that natural gas pipeline develops in the world.The mistake that natural gas transports in distance
Cheng Zhong, needs higher pressure to provide transportation power (such as, the second west to east gas pipeline project is typically 8～12MPa), and works as natural gas
After arriving point defeated station, for meeting pressure (typically the 1.5～4MPa) demand of downstream user, need to carry out pressure regulation at a point defeated station.
High-pressure natural gas is after pressure regulator valve pressure regulation, and pressure reduces, owing to Joule-Thomson effect can make temperature decrease to below freezing.
Cryogenic natural gas is in Transportation Engineering, the most in the winter time, the Gas Buried Pipelines surrounding soil after pressure regulation can be caused to freeze, and sends out
Raw " frost heave " phenomenon.
Pipeline frost heave can cause part ground, body of wall slight crack occur, and section of tubing can become under frost heave load effect
Shape, even occurs that natural gas line valve body is lifted off a seat, causes natural gas leakage, and the safe operation to point defeated station causes greatly
Impact.Therefore, it is necessary to take effective measures solution to carry out problem of frost heave, to guarantee point safe operation at defeated station.
In the method for current existing solution natural gas problem of frost heave, modal passive type method be soil removal and replacement, waterproof or
The method of draining, these methods are all to reduce the probability of generation frost heave by reducing the moisture in soil, but these methods
Can not thoroughly solve problem of frost heave.Also having trench methods, the method is to be built into waterproof cement pipeline around natural gas line, but
This method does not carry out heat exchange to natural gas line, and cold is not pulled away, and therefore contact with soil outside point defeated station is natural
Feed channel still can absorb the heat of soil, still can cause pipeline frost heave；The most frequently used proactive is at natural gas tube
Electric heater is set before the pressure regulator valve in road, but, owing in heating process, minimum is uncertain, use fixed mode of heating to make
A large amount of primary energy is become to waste；Additionally, also there is employing heat pipe assembly, underground constant zone of subsurface temperature heat is transferred to the side of frost heave position
Method, the method does not consume high-grade electric energy and heats relatively uniform to soil near natural gas line, but the method implementation process
In, owing to soil horizon thermal resistance is relatively big, slower with heat pipe heat exchanging so that not obtain thermal compensation in time due to natural gas line and depend on
So can cause pipeline frost heave.
How a kind of system is provided, based on making full use of regenerative resource principle, by appropriate design, can not only solve
The problem of frost heave of natural gas underground pipe, and it is capable of use that is energy-conservation and that reduce high-grade electric energy, it is to need urgent solution
Problem.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide one combine solar energy and
The natural gas buried pipe anti-freeze expansion system of geothermal energy.
The purpose of the present invention can be achieved through the following technical solutions:
The natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy and geothermal energy, including pipeline heat-exchanger rig, too
Sun energy heat collector and earth source heat pump,
Described pipeline heat-exchanger rig leads to by natural gas underground pipe and for the heat transferring medium with natural gas underground pipe heat exchange
Road forms,
The two ends of described heat exchanging medium passage connect heat transferring medium main line, and on heat transferring medium main line, parallel connection is provided with
First arm and the second arm, the first arm is provided with solar energy heat collector, and the second heat exchange arm is provided with earth source heat pump.
The first described arm and the second arm are connected by three-way valve with heat transferring medium main line.
Described solar energy heat collector is trough type solar heat-collector, including slot light collection assembly and for being gathered by slot type
The sunlight that optical assembly is assembled changes into the receptor of heat energy, described receptor and the first arm and connects.
Described earth source heat pump includes passing sequentially through the first heat pump pipeline and connects and form the vaporizer in loop, compressor, cold
Condenser and choke valve, described vaporizer is connected formation loop also by the second heat pump pipeline with soil heat exchanger, and described is cold
Condenser and the second arm connect.
Between described vaporizer, compressor, condenser and choke valve on the first heat pump pipeline and the second heat pump pipeline
On vaporizer and soil heat exchanger between be provided with stop valve.
Being provided with cycle fluid in the first described heat pump pipeline, described cycle fluid is R290 working medium.
Described pipeline heat-exchanger rig is double pipe heat exchanger, and the inner tube of double pipe heat exchanger is natural gas underground pipe, outward
Annular space between pipe and inner tube is heat exchanging medium passage.
Described double pipe heat exchanger uses countercurrent flow.
Solar energy, as regenerative resource, although the total amount arriving the solar radiation of earth surface is very big, but can flow close
Spend the lowest, simultaneously because by round the clock, season, the natural conditions such as geographic latitude and height above sea level are limited and fine, cloudy, cloud,
The impact of the random factors such as rain, the solar irradiance arriving a certain ground is extremely unstable so that the light of photovoltaic and photothermal equipment
Electricity, photo-thermal are relatively inefficient, and this is accomplished by being gathered together and be received device general's radiation by beam condensing unit and can turn by sunlight
Turn to the heat energy of sufficient temp.
Trough type solar heat-collector is a kind of equipment that the radiation of the sun can be converted to heat energy, as middle high temperature heat collector
One, it is possible to being gathered together by slot light collection assembly and be received device by sunlight can be converted into sufficient temp by radiation
Heat energy, it is thus achieved that higher heat-collecting temperature.
And the defect applying trough type solar heat-collector to solve natural gas line problem of frost heave is not have illumination when night,
This be accomplished by another kind rise again equipment when night for natural gas underground pipe provide heat energy.
Earth source heat pump can utilize the land shallow-layer energy, and the high-grade energy (such as electric energy) a small amount of by input realizes by low
Grade heat energy is to high-grade heat energy transfer.Earth source heat pump belongs to cost-effective power-saving technology, and COP value has reached more than 4, and its
Obvious environment benefit, the operation of its device does not has any pollution, not burning, not smoke evacuation, it is not necessary to stack fuel exhaust
Place, and without long-distance sand transport heat.
System, according to different round the clock, run and is made following adjustment by the present invention:
(1) by day, under normal circumstances, earth source heat pump does not runs illumination condition, and shallow surface is in collection Warm status, for night
Evening, the operation of earth source heat pump stored energy.Time the most by day, making full use of solar energy heat collector provides natural gas underground pipe
Heat.For the thermal compensation thermal process of cryogenic natural gas underground pipe, first, trough type solar heat-collector passes through slot light collection assembly
Sunlight is fully gathered together and is received device and radiation can be converted into the heat energy of sufficient temp, and then heating heat transferring medium,
The heat transferring medium obtaining higher temperature carries out abundant heat exchange to natural gas underground pipe again, and the natural gas underground pipe of low temperature is owing to obtaining
Thermal compensation and avoid pipeline frost heave, and heat transferring medium is owing to obtaining substantial amounts of cold and temperature reduces, and is again introduced into slot type
Solar thermal collector, it is achieved heat transferring medium heat circulation, and then for the continual and steady heat of providing of natural gas underground pipe.
(2), by day, under illumination condition abnormal condition, the heat assembled when trough type solar heat-collector can not meet sky
So gas underground pipe rise again heat demand time, synchronize to open earth source heat pump, trough type solar heat-collector and earth source heat pump through transport
OK, enough thermal compensations are provided for natural gas underground pipe.
(3) at night, application earth source heat pump makes full use of shallow surface geothermal energy resources and provides heat to natural gas underground pipe.
In the present invention, earth source heat pump uses the destruction to ozone layer is zero and R290 working medium without greenhouse effect.For
The phase transition process of earth source heat pump internal working medium, first, vaporizer is by absorbing the heat source water heat after soil heat exchanger heats
Coming the R290 liquid working substance gasification flowed into through choke valve, low temperature, the working medium of low pressure after gasification become after compressor does work
High temperature, the gas of high pressure；Then the gas working medium of High Temperature High Pressure enters condenser, with the temperature after pipeline heat transmission equipment heat exchange
Low heat transferring medium carries out abundant heat exchange, and high temperature, the gas working medium of high pressure are condensed into High Temperature High Pressure owing to obtaining cold
Liquid working substance；Final high temperature, the liquid working substance of high pressure become the liquid working substance of low temperature, low pressure after throttling valve action, the most again
Secondary entrance vaporizer, carries out abundant heat exchange with soil heat exchanger, thus realize working medium heat circulation.
Heat transfer process to natural gas underground pipe, first, the heat transferring medium that temperature is low enters in condenser, absorbs R290 work
Matter is changed into the heat of transformation of liquid by gaseous state, enters back into pipeline heat transmission equipment after becoming the heat transferring medium that temperature is high, and temperature is high
Heat transferring medium fluid and natural gas carry out countercurrent flow, and the heat transferring medium after heat exchange obtains a large amount of colds and temperature reduces, buried
Pipe avoids pipeline frost heave owing to having obtained thermal compensation.
Compared with prior art, the beneficial effects of the present invention is: natural gas underground pipe is provided and vulcanizes by regenerative resource
Repay, omnidistance effectively reduction high-grade energy consumption.When running by day, trough type solar heat-collector passes through slot light collection assembly by the sun
Light fully gathers together and is received device and radiation can be converted into the heat energy of sufficient temp, finally indirectly enters natural gas line
The abundant heat exchange of row, has the higher light thermal efficiency；When running night, application earth source heat pump makes full use of shallow surface underground heat money
Source provides thermal compensation to natural gas underground pipe, due to the cold and heat source of earth source heat pump that closes with cryogenic natural gas pipeline enclosure access node it
Between the temperature difference less, theoretical according to inverse Carnot cycle, the heating efficiency COP of earth source heat pump is of a relatively high, has reached more than 4, its
Thermodynamics economic performance is better than the simple electric heat supply system that consumes, and has significant energy-saving effect.The present invention is by the slot type sun
Energy heat collector and earth source heat pump reasonable combination, it is possible to realizing being prevented effectively from natural gas underground pipe generation frost heave, making full use of can be again
The raw energy, the win-win situation of minimizing high-grade power consumption, and its obvious environment benefit, whole system is run does not has any dirt
Dye, not burning, not smoke evacuation, it is not necessary to stack the place of fuel exhaust, and without long-distance sand transport heat, meet China and work as
The fundamental state policy of front energy-saving and emission-reduction.For temperature after pressure regulation reduces obvious natural gas buried pipeline, the present invention has very
The good energy saving space and more wide practical value.
Accompanying drawing explanation
Fig. 1 is the system structure schematic diagram of the present invention；
In figure, 1 is pipeline heat-exchanger rig, and 2 is natural gas underground pipe, and 3 is trough type solar heat-collector, and 4 is condenser, 5
For choke valve, 6 is vaporizer, and 7 is compressor, and 8 is soil heat exchanger, and 91 is the first three-way valve, and 92 is the second three-way valve, and 93 are
First stop valve, 94 is the second stop valve, and 95 is the 3rd stop valve, and 96 is the 4th stop valve, and 97 is the 5th stop valve, and 98 is
Six stop valves, 10 is heat transferring medium main line, and 11 is the first arm, and 12 is the second arm, and 13 is the first heat pump pipeline, and 14 is
Two heat pump pipelines.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
The natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy and geothermal energy, as it is shown in figure 1, include that pipeline changes
Thermal 1, solar energy heat collector 2 and earth source heat pump, pipeline heat-exchanger rig 1 is by natural gas underground pipe 2 and is used for and natural gas
The heat exchanging medium passage composition of underground pipe 2 heat exchange, the two ends of heat exchanging medium passage connect heat transferring medium main line 10, and heat exchange is situated between
It is provided with the first arm 11 and the second arm 12 by the first three-way valve 91 and the second three-way valve 92 parallel connection on matter main line 10, first
Arm 11 is provided with solar energy heat collector 3, and the second heat exchange arm 12 is provided with earth source heat pump.
Concrete: pipeline heat-exchanger rig 1 is the double pipe heat exchanger using countercurrent flow, and the inner tube of double pipe heat exchanger is
Natural gas underground pipe 2, the annular space between outer tube and inner tube is heat exchanging medium passage.Solar energy heat collector 3 be slot type too
Sun energy heat collector, including slot light collection assembly and for the sunlight of slot light collection component aggregates changes into the reception of heat energy
Device, receptor and the first arm 11 connect.Earth source heat pump includes that passing sequentially through the first heat pump pipeline 13 connects the steaming forming loop
Sending out device 6, compressor 7, condenser 4 and choke valve 5, vaporizer 6 is connected shape also by the second heat pump pipeline 14 with soil heat exchanger 8
Becoming loop, condenser 4 is connected with the second arm 12, is provided with cycle fluid in the first heat pump pipeline 13, and cycle fluid is R290 work
Matter.Be provided with the 4th stop valve 96 between vaporizer 6 and compressor 7 on first heat pump pipeline 13, compressor 7 and condenser 4 it
Between be provided with the second stop valve 94, be provided with the first stop valve 93 between condenser 4 and choke valve 5, between choke valve 5 and vaporizer 6
It is provided with the 3rd stop valve 95, between vaporizer 6 and the soil heat exchanger 8 on the second heat pump pipeline 14, is provided with the 5th stop valve 97 He
6th stop valve 98.
Different according to external environmental condition, operating scheme and relevant operating procedure are as follows:
(1) by day, under normal circumstances, earth source heat pump does not runs illumination condition, and shallow surface is in collection Warm status, for night
Evening, the operation of earth source heat pump stored energy.Time the most by day, a, b side standard-sized sheet of the first three-way valve 91, c side closure, the second threeway
E, f side standard-sized sheet of valve 92, d side closure, other shutoff valve Close Alls.Make full use of solar energy natural gas underground pipe 2 is carried
Heating load, for the thermal compensation thermal process of cryogenic natural gas underground pipe, first, trough type solar heat-collector 3 passes through slot light collection
Sunlight is fully gathered together and is received device and radiation can be converted into the heat energy of sufficient temp, and then heating heat exchange by assembly
Medium, the present embodiment uses recirculated water as heat transferring medium, it is thus achieved that natural gas underground pipe 2 is entered by the heat recirculated water of higher temperature again
The abundant heat exchange of row, the natural gas underground pipe 2 of low temperature avoids pipeline frost heave owing to having obtained thermal compensation, and heat recirculated water due to
Obtain substantial amounts of cold and become cold water, be again introduced into trough type solar heat-collector 3, it is achieved recirculated water heat circulation, and then
For the heat that the offer of natural gas underground pipe 2 is continual and steady.
(2), by day, under illumination condition abnormal condition, the heat assembled when trough type solar heat-collector 3 can not meet
Natural gas underground pipe 2 rise again heat demand time, synchronize to open earth source heat pump, trough type solar heat-collector 3 is with earth source heat pump also
Through transport row, provides enough thermal compensations for natural gas underground pipe 2.Now suitably regulate according to illumination condition and ambient temperature situation
A, b, c side of one three-way valve 91 and the aperture of d, e, f side of the second three-way valve 92, remaining stop valve standard-sized sheet.
(3) at night, application earth source heat pump makes full use of shallow surface geothermal energy resources and natural gas underground pipe 2 provides heat
Amount.Now a, c side standard-sized sheet of the first three-way valve 91, b side closure, d, f side standard-sized sheet of the second three-way valve 92, e side closure, remaining cuts
Only valve.
In the present invention, earth source heat pump uses the destruction to ozone layer is zero and R290 working medium without greenhouse effect.For
The phase transition process of earth source heat pump internal working medium, first, vaporizer 6 is by absorbing the thermal source hydro-thermal after soil heat exchanger 8 heats
Amount is come the R290 liquid working substance gasification flowed into through choke valve 5, and low temperature after gasification, the working medium of low pressure are after compressor 7 acting
Become the gas of high temperature, high pressure；Then the gas working medium of High Temperature High Pressure enters condenser 4, and after pipeline heat-exchanger rig 1 heat exchange
Cold water carry out abundant heat exchange, high temperature, the gas working medium of high pressure are condensed into the liquid work of High Temperature High Pressure owing to obtaining cold
Matter；Final high temperature, the liquid working substance of high pressure become the liquid working substance of low temperature, low pressure after choke valve 5 acts on, and are again introduced into afterwards
Vaporizer 6, thus realize working medium heat circulation.
Heat transfer process to natural gas underground pipe 2, first, cold water enters in condenser 4, absorbs R290 working medium and is turned by gaseous state
Becoming the heat of transformation of liquid, enter back into pipeline heat-exchanger rig 1 after becoming hot water, hydrothermal fluid and natural gas carry out countercurrent flow,
Hot water after heat exchange obtains a large amount of colds and becomes cold water, and natural gas underground pipe 2 avoids pipeline owing to having obtained thermal compensation
Frost heave.
The present invention is by groove type solar heat collector and earth source heat pump reasonable combination, it is possible to realize being prevented effectively from natural gas ground
Pipe laying generation frost heave, makes full use of regenerative resource, the win-win situation of minimizing high-grade power consumption.
Trough type solar heat-collector is as a kind of middle high temperature heat collector, it is possible to assembled by sunlight by beam condensing unit
Come and be received device radiation can be converted into the heat energy of sufficient temp, it is thus achieved that higher heat-collecting temperature, it is possible to overcome solar energy energy
The shortcomings such as current density is relatively low, intensity of illumination is unstable, have the higher light thermal efficiency.
Earth source heat pump make full use of shallow surface geothermal energy resources to natural gas underground pipe provide thermal compensation, due to low temperature sky
So the temperature difference between the cold and heat source of the earth source heat pump that feed channel combines indirectly is less, theoretical according to inverse Carnot cycle, earth source heat pump
Heating efficiency COP of a relatively high, reached more than 4, its thermodynamics economic performance is better than the simple electric heat supply system that consumes,
There is significant energy-saving effect.
Whole system is run does not has any pollution, not burning, not smoke evacuation, it is not necessary to stack the place of fuel exhaust,
And without long-distance sand transport heat, meet the fundamental state policy of the current energy-saving and emission-reduction of China.
There is substantial amounts of cold energy in natural gas high pressure pipe network during pressure regulation, reduces the most natural for temperature after pressure regulation
For gas buried pipeline, the present invention has the good energy saving space and more wide practical value.
Claims (8)
1. the natural gas buried pipe anti-freeze expansion system combining solar energy and geothermal energy, it is characterised in that include that pipeline changes
Thermal, solar energy heat collector and earth source heat pump,
Described pipeline heat-exchanger rig is by natural gas underground pipe and for the heat exchanging medium passage group with natural gas underground pipe heat exchange
Become,
The two ends of described heat exchanging medium passage connect heat transferring medium main line, and on heat transferring medium main line, parallel connection is provided with first
Arm and the second arm, the first arm is provided with solar energy heat collector, and the second heat exchange arm is provided with earth source heat pump.
The natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy the most according to claim 1 and geothermal energy, its
Being characterised by, the first described arm and the second arm are connected by three-way valve with heat transferring medium main line.
The natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy the most according to claim 1 and geothermal energy, its
Being characterised by, described solar energy heat collector is trough type solar heat-collector, including slot light collection assembly and for by slot type
The sunlight that concentrating component is assembled changes into the receptor of heat energy, described receptor and the first arm and connects.
The natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy the most according to claim 1 and geothermal energy, its
Being characterised by, described earth source heat pump includes passing sequentially through the first heat pump pipeline and connects and form the vaporizer in loop, compressor, cold
Condenser and choke valve, described vaporizer is connected formation loop also by the second heat pump pipeline with soil heat exchanger, and described is cold
Condenser and the second arm connect.
The natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy the most according to claim 4 and geothermal energy, its
It is characterised by, between described vaporizer, compressor, condenser and choke valve on the first heat pump pipeline and the second heat pump pipeline
On vaporizer and soil heat exchanger between be provided with stop valve.
The natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy the most according to claim 4 and geothermal energy, its
Being characterised by, being provided with cycle fluid in the first described heat pump pipeline, described cycle fluid is R290 working medium.
The natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy the most according to claim 1 and geothermal energy, its
Being characterised by, described pipeline heat-exchanger rig is double pipe heat exchanger, and the inner tube of double pipe heat exchanger is natural gas underground pipe, outward
Annular space between pipe and inner tube is heat exchanging medium passage.
The natural gas buried pipe anti-freeze expansion system of a kind of combination solar energy the most according to claim 7 and geothermal energy, its
Being characterised by, described double pipe heat exchanger uses countercurrent flow.
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| CN201610464873.7A CN106123367B (en) | 2016-06-23 | 2016-06-23 | A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy |
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| CN201610464873.7A CN106123367B (en) | 2016-06-23 | 2016-06-23 | A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy |
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| CN107419719A (en) * | 2017-07-31 | 2017-12-01 | 中铁西北科学研究院有限公司 | A kind of solar wind-energy driving refrigeration safeguards the heat-staple method of frozen soil foundation |
| CN108050716A (en) * | 2018-01-16 | 2018-05-18 | 深圳中燃哈工大燃气技术研究院有限公司 | A kind of voltage-regulating system and method using geothermal heating natural gas |
| CN110617583A (en) * | 2019-09-09 | 2019-12-27 | 青岛新航农高科产业发展有限公司 | Integrated wall |
| RU2787067C1 (en) * | 2021-03-25 | 2022-12-28 | Северно-Западный институт экологии и природных ресурсов Академии наук Китая | Device for heating ground base and ground base including it |
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| CN107419719A (en) * | 2017-07-31 | 2017-12-01 | 中铁西北科学研究院有限公司 | A kind of solar wind-energy driving refrigeration safeguards the heat-staple method of frozen soil foundation |
| CN108050716A (en) * | 2018-01-16 | 2018-05-18 | 深圳中燃哈工大燃气技术研究院有限公司 | A kind of voltage-regulating system and method using geothermal heating natural gas |
| CN110617583A (en) * | 2019-09-09 | 2019-12-27 | 青岛新航农高科产业发展有限公司 | Integrated wall |
| RU2787067C1 (en) * | 2021-03-25 | 2022-12-28 | Северно-Западный институт экологии и природных ресурсов Академии наук Китая | Device for heating ground base and ground base including it |
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| CN106123367B (en) | 2019-02-22 |
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