CN106123367B - An anti-frost heave system for buried natural gas pipelines combining solar energy and geothermal energy - Google Patents
An anti-frost heave system for buried natural gas pipelines combining solar energy and geothermal energy Download PDFInfo
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- CN106123367B CN106123367B CN201610464873.7A CN201610464873A CN106123367B CN 106123367 B CN106123367 B CN 106123367B CN 201610464873 A CN201610464873 A CN 201610464873A CN 106123367 B CN106123367 B CN 106123367B
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- pipe
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract 10
- 239000003345 natural gas Substances 0.000 title abstract 5
- 108010053481 Antifreeze Proteins Proteins 0.000 abstract 1
- 230000002528 anti-freeze Effects 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
-
- 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
-
- 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
-
- 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
-
- 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 systems of a kind of combination solar energy and geothermal energy, including pipeline heat-exchanger rig, solar energy heat collector and earth source heat pump, heat exchanging medium passage of the pipeline heat-exchanger rig by natural gas underground pipe and for exchanging heat with natural gas underground pipe forms, the both ends of heat exchanging medium passage are connected with heat transferring medium main line, it is in parallel on heat transferring medium main line to be equipped with the first branch pipe and the second branch pipe, first branch pipe is equipped with solar energy heat collector, and the second branch pipe is equipped 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 can be realized and effectively avoid natural gas underground pipe that frost heave occurs, the win-win situation for making full use of renewable energy, reducing high-grade electric energy consumption, and its obvious environment benefit, and do not have to long-distance sand transport heat, meet the fundamental state policy of the current energy-saving and emission-reduction in 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 fields, and in particular to a kind of combination solar energy and the natural gas of geothermal energy
Pipe laying road anti-freeze expansion system.
Background technique
Natural gas is the high-efficiency cleaning energy, and the specific gravity in energy resource structure increasingly increases.And due to the resource of natural gas and
City's field distribution is very uneven, so that the important link that the transport of natural gas develops at Gas Industry.Currently, big mouth
Diameter, high pressure have been the general trend that natural gas pipeline develops in the world over long distances.Natural gas is in the mistake transported over long distances
Cheng Zhong needs higher pressure to provide transportation power (for example, the second west to east gas pipeline project is generally in 8~12MPa), and works as natural gas
After reaching point defeated station, for pressure (generally in the 1.5~4MPa) demand for meeting downstream user, need to carry out pressure regulation in point defeated station.
High-pressure natural gas is after pressure regulator valve pressure regulation, pressure reduction, since Joule-Thomson effect can make temperature decrease to below freezing.
Cryogenic natural gas is in Transportation Engineering, and especially in winter, the Gas Buried Pipelines surrounding soil after will lead to pressure regulation freezes, hair
Raw " frost heave " phenomenon.
Pipeline frost heave will cause part ground, slight crack occurs in wall, and section of tubing can become under the effect of frost heave load
Shape, or even natural gas line valve body occur and lift off a seat, natural gas leakage is caused, the safe operation of point defeated station is caused greatly
It influences.Therefore, it is necessary to which taking effective measures solution carrys out problem of frost heave, to ensure the safe operation of point defeated station.
At present it is existing solve natural gas problem of frost heave method in, the most common passive type method be soil removal and replacement, waterproof or
The method of draining, these methods are all to reduce a possibility that frost heave occurs, but these methods by reducing the moisture in soil
Problem of frost heave cannot thoroughly be solved.There are also trench methods, the method be waterproof cement pipeline will be built into around natural gas line, but
This method does not exchange heat to natural gas line, and cooling capacity is not pulled away, therefore contacts outside point defeated station with soil natural
Feed channel can still absorb the heat of soil, still will cause pipeline frost heave；Most common proactive is in natural gas tube
Electric heater is set before the pressure regulator valve in road, still, since minimum is uncertain in heating process, is made using fixed heating method
It is wasted at a large amount of non-renewable energy；In addition, also having using heat pipe assembly, by underground constant zone of subsurface temperature heat transmission to the side of frost heave position
Method, this method do not consume high-grade electric energy and, but this method implementation process relatively uniform to soil heating near natural gas line
In, it is slower with heat pipe heat exchanging since soil horizon thermal resistance is larger so that due to natural gas line do not obtain thermal compensation in time according to
It so will cause pipeline frost heave.
How a kind of system is provided, based on renewable energy principle is made full use of, by rationally designing, can not only be solved
The problem of frost heave of natural gas underground pipe, and can be realized energy conservation and reduce the use of high-grade electric energy, it is to need urgent solve
The problem of.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of combination 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:
A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy, including pipeline heat-exchanger rig, too
Positive energy heat collector and earth source heat pump,
Heat transferring medium of the pipeline heat-exchanger rig by natural gas underground pipe and for exchanging heat with natural gas underground pipe leads to
Road composition,
The both ends of the heat exchanging medium passage are connected with heat transferring medium main line, and parallel connection is equipped on heat transferring medium main line
First branch pipe and the second branch pipe, the first branch pipe are equipped with solar energy heat collector, and the second branch pipe is equipped with earth source heat pump.
First branch pipe and the second branch pipe is connect with heat transferring medium main line by triple valve.
The solar energy heat collector is trough type solar heat-collector, including slot light collection component and for gathering slot type
The sunlight of optical assembly aggregation is converted to the receiver of thermal energy, and the receiver is connect with the first branch pipe.
The earth source heat pump includes the evaporator for passing sequentially through the first heat pump pipeline connection forming circuit, compressor, cold
Condenser and throttle valve, the evaporator also pass through the second heat pump pipeline and connect forming circuit with soil heat exchanger, and described is cold
Condenser is connect with the second branch pipe.
Between evaporator, compressor, condenser and throttle valve on the first heat pump pipeline and the second heat pump pipeline
On evaporator and soil heat exchanger between be equipped with shut-off valve.
Cycle fluid is equipped in the first heat pump pipeline, the cycle fluid is R290 working medium.
The pipeline heat-exchanger rig is double pipe heat exchanger, and the inner tube of double pipe heat exchanger is natural gas underground pipe, outside
Annular space between pipe and inner tube is heat exchanging medium passage.
The double pipe heat exchanger uses counterflow heat exchange.
Solar energy, although the total amount for reaching the solar radiation of earth surface is very big, can flow close as renewable energy
Spend it is very low, simultaneously because by round the clock, season, the natural conditions such as geographic latitude and height above sea level are limited and fine, negative, cloud,
The influence of the enchancement factors such as rain, reach a certain ground solar irradiance be it is extremely unstable so that the light of photovoltaic and photothermal equipment
Electricity, photo-thermal it is relatively inefficient, this just need by beam condensing unit by sunlight gather together and received device by radiation energy turn
Turn to the thermal energy of sufficient temp.
Trough type solar heat-collector is a kind of equipment that the radiation energy of the sun is converted to thermal energy, as high temperature heat collector
One kind, sunlight can be gathered together by slot light collection component and radiation energy is converted sufficient temp by received device
Thermal energy, obtain higher heat-collecting temperature.
And applying trough type solar heat-collector to solve the defect of natural gas line problem of frost heave is not have illumination at night,
This just needs another kind equipment of rising again to provide thermal energy at night for natural gas underground pipe.
Earth source heat pump can utilize the land shallow-layer energy, be realized by inputting a small amount of high-grade energy (such as electric energy) by low
Grade thermal energy is to high-grade heat energy transfer.Earth source heat pump belongs to cost-effective power-saving technology, and COP value has reached 4 or more, and its
Obvious environment benefit, the no any pollution of the operation of device, does not burn, does not discharge fume, and does not need to stack fuel exhaust
Place, and do not have to long-distance sand transport heat.
The present invention makes following adjustment according to difference round the clock, to system operation:
(1) on daytime, under normal circumstances, earth source heat pump is not run illumination condition, and shallow surface is in collection Warm status, is night
The operation of late earth source heat pump stores energy.I.e. during the day, solar energy heat collector is made full use of to provide natural gas underground pipe
Heat.For the thermal compensation thermal process of cryogenic natural gas underground pipe, firstly, trough type solar heat-collector passes through slot light collection component
Sunlight is sufficiently gathered together and received device converts radiation energy to the thermal energy of sufficient temp, and then heats heat transferring medium,
The heat transferring medium for obtaining higher temperature again sufficiently exchanges heat to natural gas underground pipe, and the natural gas underground pipe of low temperature is due to obtaining
Thermal compensation and avoid pipeline frost heave, and heat transferring medium is again introduced into slot type due to obtaining a large amount of cooling capacity and temperature reduces
Solar thermal collector, realizes the heating circulation of heat transferring medium, and then provides continual and steady heat for natural gas underground pipe.
(2) under daytime, illumination condition abnormal condition, when the heat of trough type solar heat-collector aggregation is not able to satisfy day
Right gas underground pipe rise again heat demand when, it is synchronous to open earth source heat pump, trough type solar heat-collector and earth source heat pump and through transport
Row, provides enough thermal compensations for natural gas underground pipe.
(3) at night, shallow surface geothermal energy resources are made full use of to provide heat to natural gas underground pipe using earth source heat pump
Amount.
Earth source heat pump is zero and the R290 working medium without greenhouse effects using the destruction to ozone layer in the present invention.For
The phase transition process of earth source heat pump internal working medium, firstly, evaporator is by absorbing the heat source water heat after soil heat exchanger heats
Come the R290 liquid working substance gasification to flowing into through throttle valve, the working medium of low temperature, low pressure after gasification becomes after compressor work
The gas of high temperature, high pressure；Then the gas working medium of high temperature and pressure enters condenser, with the temperature after the heat exchange of pipeline heat exchange equipment
Low heat transferring medium is sufficiently exchanged heat, high temperature, high pressure gas working medium be condensed into high temperature and pressure due to obtaining cooling capacity
Liquid working substance；Final high temperature, high pressure liquid working substance after the valve action that throttles become low temperature, low pressure liquid working substance, Zhi Houzai
It is secondary to enter evaporator, it is sufficiently exchanged heat with soil heat exchanger, to realize the heating circulation of working medium.
To the heat transfer process of natural gas underground pipe, firstly, the low heat transferring medium of temperature enters in condenser, R290 work is absorbed
Matter is changed into the heat of transformation of liquid by gaseous state, enters back into pipeline heat exchange equipment after becoming the high heat transferring medium of temperature, temperature is high
Heat transferring medium fluid and natural gas carry out counterflow heat exchange, and the heat transferring medium after heat exchange obtains a large amount of cooling capacity and temperature reduces, buried
Pipe avoids pipeline frost heave due to having obtained thermal compensation.
Compared with prior art, the beneficial effects of the present invention are: renewable energy vulcanizes the offer of natural gas underground pipe
It repays, high-grade energy consumption is effectively reduced in whole process.In operation on daytime, trough type solar heat-collector passes through slot light collection component for the sun
Light sufficiently gathers together and received device converts radiation energy to the thermal energy of sufficient temp, finally indirectly to natural gas line into
Row sufficiently heat exchange, photo-thermal efficiency with higher；In night operation, shallow surface underground heat is made full use of to provide using earth source heat pump
Source to natural gas underground pipe provide thermal compensation, due to the earth source heat pump closed with cryogenic natural gas pipeline enclosure binding cold and heat source it
Between the temperature difference it is smaller, theoretical according to inverse Carnot cycle, the heating efficiency COP of earth source heat pump is relatively high, reached 4 or more,
Thermodynamics economic performance is got well than consuming electric heat supply system merely, has significant energy-saving effect.The present invention is by the slot type sun
Energy heat collector and earth source heat pump reasonable combination can be realized and effectively avoid natural gas underground pipe that frost heave occurs, and making full use of can be again
The raw energy, the win-win situation for reducing high-grade electric energy consumption, and its obvious environment benefit, whole system run no any dirt
Dye, does not burn, does not discharge fume, and does not need the place for stacking fuel exhaust, and do not have to long-distance sand transport heat, meets China and work as
The fundamental state policy of preceding energy-saving and emission-reduction.For temperature after pressure regulation reduces apparent natural gas buried pipeline, the present invention has very
The good energy saving space and more wide practical value.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention；
In figure, 1 is pipeline heat-exchanger rig, and 2 be natural gas underground pipe, and 3 be trough type solar heat-collector, and 4 be condenser, 5
It is evaporator for throttle valve, 6,7 be compressor, and 8 be soil heat exchanger, and 91 be the first triple valve, and 92 be the second triple valve, and 93 are
First shut-off valve, 94 be the second shut-off valve, and 95 be third shut-off valve, and 96 be the 4th shut-off valve, and 97 be the 5th shut-off valve, and 98 be the
Six shut-off valves, 10 be heat transferring medium main line, and 11 be the first branch pipe, and 12 be the second branch pipe, and 13 be the first heat pump pipeline, and 14 be the
Two heat pump pipelines.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy, as shown in Figure 1, being changed including pipeline
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 that underground pipe 2 exchanges heat, the both ends of heat exchanging medium passage are connected with heat transferring medium main line 10, and heat exchange is situated between
The first branch pipe 11 and the second branch pipe 12 are equipped with by the way that the first triple valve 91 and the second triple valve 92 are in parallel on matter main line 10, first
Branch pipe 11 is equipped with solar energy heat collector 3, and the second branch pipe 12 is equipped with earth source heat pump.
Specific: pipeline heat-exchanger rig 1 is the double pipe heat exchanger using counterflow heat exchange, and the inner tube of double pipe heat exchanger is
Natural gas underground pipe 2, the annular space between outer tube and inner tube are heat exchanging medium passage.Solar energy heat collector 3 be slot type too
Positive energy heat collector, the reception including slot light collection component and for the sunlight of slot light collection component aggregates to be converted to thermal energy
Device, receiver are connect with the first branch pipe 11.Earth source heat pump includes the steaming for passing sequentially through the first heat pump pipeline 13 connection forming circuit
Device 6, compressor 7, condenser 4 and throttle valve 5 are sent out, evaporator 6 also connect shape with soil heat exchanger 8 by the second heat pump pipeline 14
At circuit, condenser 4 is connect with the second branch pipe 12, and cycle fluid is equipped in the first heat pump pipeline 13, and cycle fluid is R290 work
Matter.Be equipped with the 4th shut-off valve 96 between evaporator 6 and compressor 7 on first heat pump pipeline 13, compressor 7 and condenser 4 it
Between be equipped with the second shut-off valve 94, between condenser 4 and throttle valve 5 be equipped with the first shut-off valve 93, between throttle valve 5 and evaporator 6
Equipped with third shut-off valve 95,97 He of the 5th shut-off valve is equipped between the evaporator 6 and soil heat exchanger 8 on the second heat pump pipeline 14
6th shut-off valve 98.
According to external environmental condition difference, operating scheme and related operating procedure are as follows:
(1) on daytime, under normal circumstances, earth source heat pump is not run illumination condition, and shallow surface is in collection Warm status, is night
The operation of late earth source heat pump stores energy.I.e. during the day, the side a, b standard-sized sheet of the first triple valve 91, the side c are closed, the second threeway
The side e, f standard-sized sheet of valve 92, the side d are closed, other shutoff valves are all closed.Solar energy is made full use of to mention natural gas underground pipe 2
Heating load, for the thermal compensation thermal process of cryogenic natural gas underground pipe, firstly, trough type solar heat-collector 3 passes through slot light collection
Component sufficiently gathers together sunlight and received device converts radiation energy to the thermal energy of sufficient temp, and then heats heat exchange
Medium, the present embodiment using recirculated water as heat transferring medium, obtain the heat recirculated water of higher temperature again to natural gas underground pipe 2 into
Row sufficiently heat exchange, the natural gas underground pipe 2 of low temperature avoids pipeline frost heave due to having obtained thermal compensation, and heat recirculated water due to
It obtains a large amount of cooling capacity and becomes cold water, be again introduced into trough type solar heat-collector 3, realize the heating circulation of recirculated water, in turn
Continual and steady heat is provided for natural gas underground pipe 2.
(2) under daytime, illumination condition abnormal condition, when the heat that trough type solar heat-collector 3 is assembled is not able to satisfy
Natural gas underground pipe 2 rise again heat demand when, synchronous to open earth source heat pump, trough type solar heat-collector 3 and earth source heat pump are simultaneously
Through transport row provides enough thermal compensations for natural gas underground pipe 2.Is suitably adjusted according to illumination condition and ambient temperature situation at this time
The aperture of the side a, b, c of one triple valve 91 and the side d, e, f of the second triple valve 92, remaining shut-off valve standard-sized sheet.
(3) at night, shallow surface geothermal energy resources are made full use of to provide heat to natural gas underground pipe 2 using earth source heat pump
Amount.The side a, c standard-sized sheet of first triple valve 91 at this time, the side b are closed, and the side d, f standard-sized sheet of the second triple valve 92, the side e is closed, remaining cuts
Only valve.
Earth source heat pump is zero and the R290 working medium without greenhouse effects using the destruction to ozone layer in the present invention.For
The phase transition process of earth source heat pump internal working medium, firstly, evaporator 6 is by absorbing the heat source hydro-thermal after the heating of soil heat exchanger 8
It measures to gasify to the R290 liquid working substance flowed into through throttle valve 5, the working medium of low temperature, low pressure after gasification is after the acting of compressor 7
Become the gas of high temperature, high pressure；Then the gas working medium of high temperature and pressure enters condenser 4, with through pipeline heat-exchanger rig 1 heat exchange after
Cold water sufficiently exchanged heat, high temperature, high pressure gas working medium be condensed into the liquid work of high temperature and pressure due to obtaining cooling capacity
Matter；Final high temperature, high pressure liquid working substance through throttle valve 5 effect after become low temperature, low pressure liquid working substance, be again introduced into later
Evaporator 6, to realize the heating circulation of working medium.
To the heat transfer process of natural gas underground pipe 2, firstly, cold water enters in condenser 4, absorbs R290 working medium and turned by gaseous state
The heat of transformation for becoming liquid enters back into pipeline heat-exchanger rig 1 after becoming hot water, and hydrothermal fluid and natural gas carry out counterflow heat exchange,
Hot water after heat exchange obtains a large amount of cooling capacity and becomes cold water, and natural gas underground pipe 2 avoids pipeline due to having obtained thermal compensation
Frost heave.
The present invention can be realized groove type solar heat collector and earth source heat pump reasonable combination effectively with avoiding natural gas
Frost heave occurs for pipe laying, the win-win situation for making full use of renewable energy, reducing high-grade electric energy consumption.
Trough type solar heat-collector can be assembled sunlight by beam condensing unit as a kind of high temperature heat collector
Next and received device converts radiation energy to the thermal energy of sufficient temp, obtains higher heat-collecting temperature, can overcome solar energy energy
The disadvantages of current density is lower, intensity of illumination is unstable, photo-thermal efficiency with higher.
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 day
The temperature difference between the cold and heat source for the earth source heat pump that right feed channel combines indirectly is smaller, theoretical according to inverse Carnot cycle, earth source heat pump
Heating efficiency COP it is relatively high, reached 4 or more, thermodynamics economic performance is than consumption electric heat supply system merely
It is good, there is significant energy-saving effect.
Whole system runs no any pollution, does not burn, does not discharge fume, and does not need the place for stacking fuel exhaust,
And do not have to long-distance sand transport heat, meet the fundamental state policy of the current energy-saving and emission-reduction in China.
There are a large amount of cold energy during pressure regulation for natural gas high pressure pipe network, temperature after pressure regulation are reduced apparent natural
For gas buried pipeline, the present invention has the good energy saving space and more wide practical value.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610464873.7A CN106123367B (en) | 2016-06-23 | 2016-06-23 | An anti-frost heave system for buried natural gas pipelines combining solar energy and geothermal energy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610464873.7A CN106123367B (en) | 2016-06-23 | 2016-06-23 | An anti-frost heave system for buried natural gas pipelines combining solar energy and geothermal energy |
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| CN106123367B true CN106123367B (en) | 2019-02-22 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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| JP6165867B2 (en) * | 2012-09-21 | 2017-07-19 | 天津市格瑞思機電新技術有限公司Ｔｉａｎｊｉｎ Ｇｅｒｕｉｓｉ Ｎｅｗ Ｔｅｃｈｎｏｌｏｇｙ Ｏｆ Ｍｅｃｈａｎｉｃａｌ Ａｎｄ Ｅｌｅｃｔｒｉｃａｌ Ｃｏ．Ｌｔｄ | Public water supply pipe network system for source side water and middle water of local geothermal heat pump system |
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| CN201637063U (en) * | 2010-03-23 | 2010-11-17 | 张泽长 | Heat exchanger capable of protecting soil |
| CN202132648U (en) * | 2011-07-21 | 2012-02-01 | 徐霆生 | Pipeline heating system |
| CN105042941A (en) * | 2015-08-04 | 2015-11-11 | 上海电力学院 | Compound system of photovoltaic solar heat pump |
| CN204829088U (en) * | 2015-08-04 | 2015-12-02 | 上海电力学院 | System that natural gas buried pipeline prevented frostbite and expands based on photovoltaic hydrologic cycle |
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| CN204879448U (en) * | 2015-08-04 | 2015-12-16 | 上海电力学院 | Utilize solar energy heated air's frostproofing device that expands of natural gas line |
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| CN106123367A (en) | 2016-11-16 |
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