CN104913544B - A kind of natural gas station energy utilizing method based on soil source heat pump system - Google Patents
A kind of natural gas station energy utilizing method based on soil source heat pump system Download PDFInfo
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- CN104913544B CN104913544B CN201510291855.9A CN201510291855A CN104913544B CN 104913544 B CN104913544 B CN 104913544B CN 201510291855 A CN201510291855 A CN 201510291855A CN 104913544 B CN104913544 B CN 104913544B
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Classifications
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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
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
Abstract
The invention discloses a kind of natural gas station energy utilizing method based on soil source heat pump, winter cooling and heating load demand different with summer in natural gas station is solved using a set of soil source heat pump system.According to the different purposes of thermic load in station, ground source heat pump is divided into two groups.When in the winter time, ground source heat pump absorbs heat from soil, using the fan coil outward supplying heat in heat exchange gas device or building, meets the heat demand of natural gas station.In summer, ground source heat pump by fan coil to building cooling.Then the chilled water heat from fan coil is absorbed, using soil as exhaust heat source, to soil heat release.This method solves various cooling and heating load demand energy-saving effects in natural gas station using soil source heat pump system, and substantially, energy utilization rate is high, and construction investment is low, and operating cost is low and safe and reliable.
Description
Technical field
The present invention relates to a kind of energy utilizing method, and in particular to a kind of natural gas station based on soil source heat pump system
Energy utilizing method.
Background technology
At present, in natural gas station, conventional natural gas heating, the heating of building and air conditioner refrigerating and domestic hot-water supply
The energy resource system answered all is separate, and energy efficiency is relatively low, specific as follows：
In natural gas station, the voltage regulation function of natural gas is typically provided with, i.e., is depressured high-pressure natural gas by pressure regulator
Downstream user is supplied after to middle pressure or low pressure.According to Joule-Thomson effect, along with the decompression of natural gas, the temperature of natural gas
Degree is also decreased, and the natural gas temperature after being depressured sometimes is up to less than 0 °.For carrying out the natural gas that temperature degree is 0~5 DEG C,
0.4MPa is down to by 4MPa, natural gas temperature reduces about 20 DEG C, if not to the heated by natural gas before pressure regulation, natural gas after pressure regulation
Temperature is too low, it is possible to gas hydrates (a kind of solid-state white powder) are generated in pipeline, pipeline obstruction is caused, has influence on
The normal gas transmission of pipeline.In addition, natural gas tube channel temp is too low, the safe operation of steel pipe will also result in.Such as it is used as natural
The 20# steel pipes of feed channel, it is impossible to run in the environment of less than -20 DEG C.
Therefore, generally to carry out heating heating to natural gas, it is ensured that the natural gas temperature after pressure regulation before natural gas pressure regulating
It is not less than 0 DEG C.Conventional heated by natural gas method has two kinds：(1) natural gas is heated using electric heater；(2) utilize
Gas fired-boiler heat hot water, then using shell-and-tube heat exchanger to heated by natural gas.Using electrical heating method simple system, but transport
Row cost is higher.Meanwhile, during electrical heating thermal power it is larger, it is necessary to install relatively high power transformer and pay one it is no small
Power capacity increasing tariff.Although with respect to electrical heating method, using gas fired-boiler come heated natural gas, operating cost decreases.But pot
The shortcoming of furnace system is also fairly obvious：Boiler thermal output is relatively low, while needing to configure fuel gas supply system, also to set special combustion
Gas boiler room, for the safety problem for preventing gas leakage from bringing, the electrical equipment of pipeline for gas all selects anti-explosion product.Separately
Outside, boiler belongs to pressure vessel, also to carry out annual test to boiler every year, operational management or system design are all very multiple
It is miscellaneous.For city gas station, heated by natural gas mostly occurs in winter, in other seasons, need not heat substantially.So without
Still heated by electrical heating using gas fired-boiler.It can only be run 1 year part season, other time stops transport, equipment efficiency of usage
It is not high.
For the natural gas station of hot-summer and cold-winter area, stand in building generally configuration split-type air conditioner carry out cooling in summer and
Winter heating.In northern area (such as Beijing area), even if winter air-conditioning full load is run, because outside air temperature is relatively low, utilize
The effect of split-type air conditioner heating is simultaneously bad.Domestic hot-water also needs to configuration electric boiler or gas fired-boiler is solved.Also there is gas enterprise
Directly the heating in station and domestic hot-water's demand are solved using gas fired-boiler.It is above-mentioned it was mentioned that the invention that explosion-proof except pipeline for gas
And outside system complexity, the smoke evacuation of boiler also brings problem of environmental pollution.
Traditional energy supplying system inefficiency, the system complex of natural gas station, have been undisputable facts, in the urgent need to using
New energy supply technology solves these problems.
The content of the invention
In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are：One kind is provided and meets natural gas
Energy utilizing method of the station in the various cooling and heating load demands of Various Seasonal.
To achieve these goals, the invention provides a kind of natural gas station using energy source side based on soil source heat pump
Method, concrete technical scheme is as follows：
Winter and summer various cooling and heating load demands in natural gas station are solved using a set of soil source heat pump system；In the winter
Soil source heat pump absorbs the heat demand that heat meets natural gas station using soil as heat sink from soil during season；In summer
The unnecessary heat in natural gas station is discharged into soil by soil source heat pump using soil as exhaust heat source.Preferably, soil source heat pump
System includes at least two ground source heat pumps, and according to the different purposes of thermic load, ground source heat pump is divided into two groups.
Ground source heat pump includes evaporator, compressor, condenser, expansion valve, and one ground source heat pump of wherein at least is also wrapped
Include heat regenerator.
It is more or less the same in summer refrigeration duty and winter thermic load regional summer, one of which ground source heat pump is used for
To building cooling, another group of ground source heat pump is as standby.In summer refrigeration duty larger area is differed with winter thermic load
Summer, two groups of ground source heat pumps work for building cooling simultaneously.The heat reclaimed through heat regenerator is used to live
Hot water is supplied.In cooling in summer, the refrigerant of soil source heat pump evaporates the heat drawn in building in evaporator, then compressed
Machine is compressed into the gas of HTHP, is condensed subsequently into condenser, heat is discharged into underground.Summer refrigeration duty with
Winter thermic load difference is larger, refers to that summer refrigeration duty is more than twice of winter thermic load, and these Area during Summers are hot and the winter
Ji Hanleng.Less than twice, illustrate that the temperature difference in summer and winter is relatively small.
In the winter time, one of which ground source heat pump is used for heated by natural gas, and another group of ground source heat pump is used for
To building heating and domestic hot-water supply.When the ground source heat pump failure for heated by natural gas, for building
The ground source heat pump of heating and domestic hot-water supply stops to building heating and domestic hot-water supply, switches to natural
Gas is heated.When heating in the winter time, the refrigerant of soil source heat pump evaporates the heat for drawing underground in evaporator, through compressor
The gas of HTHP is compressed into, is condensed subsequently into condenser, heating system recirculated water, is reached in hot water preparing feeding building
Heat purpose.
The beneficial effects of the invention are as follows：
1st, substantially, energy utilization rate is high for energy-saving effect.Soil source heat pump is absorbed or release underground heat by electric drive
Amount.No matter freezing or during heat supply, its thermal efficiency is up to more than 4.0, i.e., will refrigeration or heat supply 4.0kW using 1kW electricity.
Calculated with supplying the hot of 100kW, such as with electric heater, it is necessary to which electrical power 100kW, such as uses gas fired-boiler heat supply, it is necessary to thermic load
About 110kW (thermal efficiency is based on 90%), and in this patent heat pump operation when, it is only necessary to 25kW.It is obvious that soil source is hot
The fractional energy savings of pump reaches 77%, and energy-saving effect is obvious.
2nd, environment protecting is good.Soil source heat pump only exerts oneself just to solve the cooling and heating load in station, no row using some electrical power
The waste gas and waste water put, influence small, environment protecting is good to ambient atmosphere.And having fume emission after steam generator system burning, pollution is big
Gas.
3rd, equipment efficiency of usage is high.Relatively conventional natural gas station energy supply form, gas fired-boiler or electric heater are only
Run in the winter time, summer is out of service.No matter winter or summer can be run soil source heat pump, and utilization rate of equipment and installations is significantly carried
It is high.
4th, refrigeration and heating effect are good, and no matter soil source heat pump system freezes or heat, and system is stable, passes through fan unit
Pipe, refrigeration and heating effect are good.And traditional split-type air conditioner, heat supply efficiency decay is serious in the winter time.
5th, construction investment is low.Traditional electrical heating, configures powerful transformer and high power capacity increasing tariff, directly
Cause construction investment superelevation.For boiler heating system, boiler and split-type air conditioner cost are higher, while restricted lifetime.This patent
In, not enough only 2000 yuan of the investment of 1kW ground source heat pump, and the gas fired-boiler of 1kW heating capacities invests about 1500 yuan,
For cooling in summer, in addition it is also necessary to the investment of the electric air-conditioning of increase, about 1000 yuan of the investment of average 1kW electric air-conditioning, traditional heating with
Air conditioner refrigerating invests about 2500 yuan/kW.Obvious soil source heat pump construction investment price is more advantageous.In addition, soil source heat pump
50 years system under ground portion life-spans, aerial part about 30 years, even if source pump also can up to 15 years, in traditional station no matter pot
Stove or electric heater are extremely difficult to the requirement.
6th, it is safe and reliable, the gas fired-boiler heating system in relatively conventional system, energy needed for the equipment in the art of this patent
Source is electric power, without combustion gas and selects antiknock device, the problem of quick-fried the problems such as the blast brought in the absence of gas leakage, the system
It is safe and reliable to operation.
7th, system reliability, source pump packet in soil source system is set, winter is respectively used to heated by natural gas, confession
Warm, summer is used to refrigeration, and not only equipment efficiency of usage is mentioned, and also improve natural gas station winter heated by natural gas,
The reliability of summer cooling.
Brief description of the drawings
Fig. 1 is the schematic diagram of a preferred embodiment of the present invention.
Embodiment
Example below is that the present invention is described in further detail, embodiment be using technical solution of the present invention before
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
Soil source heat pump refers to using underground as low-temperature heat source, by water source heat pump units, geothermal energy exchange system, heat pump
The cold and heat source system of computer room auxiliary equipment composition.Soil source heat pump consumes 1kW energy, and user can obtain more than 4kW heat
Amount.By a small amount of high-order energy of input, low temperature potential energy is shifted to high temperature potential energy, with realize not only can heat supply but also can cooling height
Imitate energy-saving air conditioning system.Soil source heat pump summer absorbs heat to underground heat release, winter from underground.For some summers
Freeze in season the area longer than the winter heating time, summer is likely larger than winter to underground heat release and takes heat from underground, can cause ground
The thermal unbalance of lower soil, the thermal balance of soil can be improved by condensing units in the source pump of summer.At present, it is native
Earth source heat pump technology is widely used in all kinds of civil buildings, public building as advanced, the efficient power-saving technology of one kind, and
Not yet used in the natural gas station of gas industry.
Cooling and heating load demand has diversified forms in natural gas station：Heating, building heating and cooling including natural gas with
And domestic hot-water supply, by classification analysis it can be found that only refrigeration duty and two kinds of demands of thermic load.For natural gas station
Middle traditional energy supply technology solves a variety of cooling and heating load demands in station, and operating cost is high, efficiency is low, utilization rate of equipment and installations is low, also simultaneously
The problems such as needing to solve explosion-proof, the present embodiment proposes a kind of new high efficiency of energy and utilizes technology, that is, is utilizing advanced soil
Source heat pump technology is while solve the heated by natural gas in natural gas station, building heat supply in winter and summer cooling and domestic hot-water
Supply requirement.Soil source heat pump is using soil as heat sink when heating in the winter time, and refrigerant evaporates absorption underground in evaporator
Heat, the superheated steam of HTHP is compressed into through compressor, subsequently into condenser heating system recirculated water, 50 DEG C are produced
Hot water feeding air-conditioned room reach the purpose heated.In cooling in summer, soil source heat pump is using soil as exhaust heat source, and refrigerant exists
The heat of air-conditioned room is drawn in evaporation in evaporator, then is compressed into the superheated steam of HTHP through compressor, subsequently into cold
Condenser, heat is discharged into underground.The technology can be utilized by the comprehensive high-efficiency of the energy, utilize a set of soil source heat pump
System solves various cooling and heating load demands in natural gas station, and reduces operating cost.
The system is included by circulating ground source heat pump, underground pipe, underground pipe side recirculated water that hot water pipe is connected
Pump, user side water circulating pump, heat exchange gas device, fan coil, underground pipe water knockout drum, underground pipe water collector, user side point water
Device, user side water collector；It is provided with ground between the water intake end of the water side of underground pipe and ground source heat pump underground pipe side
Pipe laying side water circulating pump and underground pipe water collector, water side and the water intake end of underground pipe in ground source heat pump underground pipe side
Between underground pipe water knockout drum is installed, in the water side of ground source heat pump user side and heat exchange gas device or fan coil
User side water knockout drum is installed, in water intake end and heat exchange gas device or the wind of ground source heat pump user side between water intake end
User side water circulating pump and user side water collector are installed between the water side of machine coil pipe.
Ground source heat pump is configured with heat regenerator, the condensing units for summer.To realize source pump per side
The flexible allocation of water, is equipped with underground pipe water knockout drum, underground pipe water collector, in heat pump user side in the import and export of unit underground pipe
To between fan coil and heat exchange gas device, being also provided with user side water knockout drum, user side water collector.In the system, it is also provided with
Water charging system, expansion tank, the equipment or system of domestic hot-water's case.Soil underground pipe includes horizontal coiled pipe, perpendicularly buried pipe and spiral shell
Revolve and illustrated in the forms such as shape pipe laying, this patent by taking vertical underground pipe as an example.
The soil source heat pump system of the present embodiment is hybrid systems, including at least two ground source heat pumps, according to
Source pump in combined type soil source heat pump system is divided into by heated by natural gas, building heating and the thermic load of domestic hot-water amount
Two groups use respectively.
In summer, temperature degree is higher, and natural gas temperature is also higher before the internal pressure-regulating of station, need not substantially be risen after pressure regulation
Temperature heating, even if heating, thermic load is also smaller.Summer domestic hot-water is mainly used in worker's shower etc., demand also very little.Summer
It is mainly refrigeration duty season, that is, the air conditioner refrigerating built.Now only need to using soil source heat pump solve building air conditioning and
Domestic hot-water.The area that summer is more or less the same for refrigeration duty and thermic load.One group of source pump operation, for cooling,
Another group of source pump can be as standby.For hot-summer and cold-winter area, summer refrigeration duty is higher, usually the two of winter thermic load
Times, now two groups of soil source heat pumps can work together, be entirely capable of meeting the demand of building cooling, while being returned using source pump heat
Domestic hot-water supply can also be solved by receiving device.
In the heat pump of the art of this patent, in the evaporator of heat pump, the refrigerant of heat pump is absorbed from building blower fan
12 DEG C of chilled water heats of coil pipe, temperature is reduced to 7 DEG C after chilled water heat release, returns to fan coil and is exchanged heat with room air,
Heat in absorption chamber, so as to realize air conditioner refrigerating function.Now absorb heat after refrigerant in the condenser of heat pump, with from
Temperature is reduced after the cold water heat exchange of underground pipe, refrigerant release heat, absorbs heat to evaporator again.And cold water is inhaled in underground pipe
After the heat for receiving condenser, in underground and the earth soil heat exchange of constant temperature, heat is discharged.In addition, the heat carried using heat pump is returned
Device is received, the condensation heat of refrigerant can be reclaimed, this expendable-limited-recoverable heat accounts for the 20% of condensation heat, and the partial heat can be made
40 DEG C of hot water are taken, for domestic hot-water supply.Air-conditioning is solved simultaneously it is achieved thereby that being realized by heat pump using constant temperature soil source
The problem of refrigeration and domestic hot-water supply.
In the winter time, it is mainly to use heat demand in natural gas station, including the heating of building and heating thermic load, heated by natural gas
Thermic load, the thermic load of domestic hot-water, what the system mainly solved in station all kinds of uses thermic load.In the winter time during heat supply, pass through
Evaporator in valve transfer in source pump, source pump absorbs the heat of cooling water in underground pipe, then in heat pump
Heat is discharged in condenser, the function of source pump outward supplying heat is realized.Discharge after the expanded valve throttling of the refrigerant after heat, become
Into low temperature and low pressure liquid, then in the evaporator in heat pump, exchanged heat with the cold water in underground pipe, absorb the heat of cooling water
After amount, refrigerant temperature rise is compressed into high temperature and high pressure gas through compressor, heat release is circulated into condenser.Refrigerant is with coming self-built
The warm water for building fan coil (or heat exchange gas device) exchanges heat in condenser, after the heat that refrigerant is discharged is absorbed by warm water,
Temperature is increased to 50~55 DEG C, to building and heat exchange gas device heat supply, and solves the supply of domestic hot-water.Meanwhile, it is buried
Cold water is discharged after heat in evaporator in pipe, underground and constant temperature soil heat exchange is returned to, after heat absorption, to the evaporator of source pump
Circulate heat release.
Winter, one group of source pump was used for heated by natural gas under normal circumstances, and another source pump is to building heating and life
Hot water supply living.When the source pump failure for heated by natural gas, it is impossible to when normally running, for building and heating and life
The source pump of hot water supply living stops, to building heating and domestic hot-water supply, automatically switching for heated by natural gas.So
Not only greatly improve the reliability of heated by natural gas system, and avoid be individually for heated by natural gas unit set guest machine
The investment that group is brought.
Underground temperature stabilization is ensuring that using the measure of soil source heat pump system most critical in addition, it is cold in Xia Redong
Area, summer refrigeration duty is usually twice of winter thermic load, and the summer operation time is longer.Therefore, longtime running can cause
Soil hot stack, can be while cooling in summer using the soil source heat pump system with heat recovery function, recovery section heat
Amount, reduces summer to underground heat exhaust, it is ensured that annual cold and hot balance.Condensation heat simultaneously for recovery can be used for producing life heat
Water is used, and obtains good economic effect.
Ground source heat pump realizes summer to user side cooling when Summer and winter Various Seasonal is run, and winter is to user
The function of side heat supply.(the valve in such as table 1 mainly realized by valve transfer on ground source heat pump system interior conduit
Switching table shown in),
The valve transfer table of table 1
It is specific as follows：
In summer, in the user side of ground source heat pump system, valve V1, V5 valve are opened, and valve V2, V6 are closed,
Now the evaporator in source pump is frozen to user side cooling water by fan coil cooling of the user side water knockout drum into building
Water, gives building cooling.The evaporator of source pump is returned to after being pressurized after chilled water heat release by the water circulating pump of user side.
The underground pipe side of ground source heat pump system, V4, V8 valve is opened, and valve V3, V7 are closed, the now condensation in source pump
The outside heat release of device, discharges heat, the recirculated water after reduction is then return to source pump by underground pipe water knockout drum to soil
Condenser.
In the winter time, by the conversion of operational mode in ground source heat pump, condenser is exchanged with evaporator function.Pass through
The valve transfer of system, now evaporator is for underground pipe side, for absorbing soil heat.And condenser is used for user side, use
Carry out outside heat release to use.Now user side valve V2, V6 valves are opened, and valve V1, V5 are closed, the now condensation in source pump
Device is to user side supplying hot water, by fan coil supplying hot water of the user side water knockout drum into building, to building heat supplying.Air conditioner water is put
The condenser of source pump is returned to after being pressurized after heat by the water circulating pump of user side.On the ground of ground source heat pump system
Pipe laying side, V3, V7 valve is opened, and valve V4, V8 are closed, and now the outside heat release of the evaporator in source pump, passes through underground pipe
Water knockout drum is from soil absorption heat, and the recirculated water after heating is back to the evaporator of source pump.
The natural gas station high efficiency of energy based on soil source heat pump mentioned in this patent is using technology in natural gas station
In have extensive prospect of the application.Through being exchanged with some gas company, the existing natural gas station energy supply system of these enterprises
Operation is not highly desirable, and wherein operating cost height, investment are its subject matter greatly.For the high efficiency of energy profit mentioned in this patent
With technology, these gas company all represent great interest, and offer is demonstrated in their newly-built natural gas stations
Utilize.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (7)
1. a kind of natural gas station energy utilizing method based on soil source heat pump, it is characterised in that utilize a set of soil source heat
Pumping system solves winter and summer various cooling and heating load demands in natural gas station；Soil source heat pump is using soil as suction when in the winter time
Thermal source, absorption heat meets all kinds of heat demands in natural gas station from soil；In summer soil source heat pump using soil as
Exhaust heat source, the unnecessary heat in natural gas station is discharged into soil；
Wherein, the soil source heat pump system include by circulate hot water pipe connect ground source heat pump, underground pipe,
Pipe laying side water circulating pump, user side water circulating pump, heat exchange gas device, fan coil, underground pipe water knockout drum, underground pipe catchment
Device, user side water knockout drum, user side water collector；In the water side of the underground pipe and the ground source heat pump underground pipe side
Water intake end between underground pipe side water circulating pump and the underground pipe water collector are installed, in the ground source heat pump
The underground pipe water knockout drum is installed, in soil source heat between the water intake end of the water side of underground pipe side and the underground pipe
The use is installed between the water side of pump assembly user side and the heat exchange gas device or the water intake end of the fan coil
Family side water knockout drum, in water intake end and the heat exchange gas device of ground source heat pump user side or going out for the fan coil
The user side water circulating pump and the user side water collector are installed between water end (W.E.)；
The soil source heat pump system includes at least two ground source heat pumps, according to the cooling and heating load amount need of station Summer and winter
Ask different, ground source heat pump is divided into two groups；The ground source heat pump includes evaporator, compressor, condenser, swollen
Swollen valve, one ground source heat pump of wherein at least also includes heat regenerator；
The soil source heat pump system also includes domestic hot-water's case, and domestic hot-water's case is connected with the heat regenerator.
2. a kind of natural gas station energy utilizing method based on soil source heat pump according to claim 1, its feature exists
In, summer in the area that is more or less the same in summer refrigeration duty and winter thermic load, one of which ground source heat pump is used for building
Build cooling, another group of ground source heat pump is as standby, and the heat reclaimed through heat regenerator is used for domestic hot-water supply.
3. a kind of natural gas station energy utilizing method based on soil source heat pump according to claim 1, its feature exists
In being differed in summer refrigeration duty with winter thermic load the summer of larger area, two groups of ground source heat pumps, which work, to be used for simultaneously
To building cooling, the heat reclaimed through heat regenerator is used for domestic hot-water supply.
4. a kind of natural gas station energy utilizing method based on soil source heat pump according to claim any one of 2-3,
Characterized in that, in cooling in summer, the refrigerant in soil source heat pump evaporates the heat drawn in building in the evaporator,
The gas of HTHP is compressed into through compressor again, is condensed subsequently into the condenser, heat is discharged into underground.
5. a kind of natural gas station energy utilizing method based on soil source heat pump according to claim 1, its feature exists
In in the winter time, one of which ground source heat pump is used for heated by natural gas, and another group of ground source heat pump is used for building
Heating and domestic hot-water supply.
6. a kind of natural gas station energy utilizing method based on soil source heat pump according to claim 5, its feature exists
In in the winter time, described to be used for building and heating and life when the ground source heat pump for heated by natural gas breaks down
The ground source heat pump of hot water supply living stops, to building heating and domestic hot-water supply, switching to heated by natural gas.
7. a kind of natural gas station energy utilizing method based on soil source heat pump according to claim any one of 5-6,
Characterized in that, when heating in the winter time, the refrigerant of soil source heat pump evaporates the heat for drawing underground in the condenser,
Through the compressor compresses into the gas of HTHP, subsequently into the evaporator condensation, heating system recirculated water produces heat
Heating purpose is reached in water feeding building.
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| CN105485807A (en) * | 2015-12-08 | 2016-04-13 | 邢台兆丰源地热能源科技有限公司 | Intelligent central air conditioner utilizing superficial layer geothermal energy |
| CN113237157A (en) * | 2021-03-24 | 2021-08-10 | 上海市政工程设计研究总院（集团）有限公司 | Composite heat pump system suitable for subway station in severe cold area |
| CN114294847A (en) * | 2021-12-28 | 2022-04-08 | 中国建筑科学研究院有限公司 | Shallow buried pipe and middle-deep buried pipe coupled cold and heat source system and temperature control method thereof |
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| JPH11281203A (en) * | 1998-01-27 | 1999-10-15 | Nkk Corp | Soil heat source heat pump system and its operation method |
| CN101650098B (en) * | 2009-09-07 | 2010-12-08 | 浙江大学 | Solar energy-ground source heat pump self-balancing comprehensive application system |
| CN203404880U (en) * | 2013-06-13 | 2014-01-22 | 湖南天地人空调环保工程有限公司 | Closed type cooling tower and buried pipe water-source heat pump type air-conditioning system |
| CN103954078A (en) * | 2014-05-27 | 2014-07-30 | 张宇擎 | Method for extracting coal mine underground rock heat by adopting heat pump system |
| CN104088605B (en) * | 2014-07-01 | 2017-03-01 | 北京工业大学 | A kind of natural gas well head heating throttle system being generated electricity with heat pump based on pressure energy |
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