CN106440427B - Earth surface water source terrestrial heat utilization system based on earth source heat pump - Google Patents
Earth surface water source terrestrial heat utilization system based on earth source heat pump Download PDFInfo
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- CN106440427B CN106440427B CN201610773095.XA CN201610773095A CN106440427B CN 106440427 B CN106440427 B CN 106440427B CN 201610773095 A CN201610773095 A CN 201610773095A CN 106440427 B CN106440427 B CN 106440427B
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- 239000002352 surface water Substances 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000001914 filtration Methods 0.000 claims description 37
- 238000005192 partition Methods 0.000 claims description 29
- 230000002787 reinforcement Effects 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 239000004677 Nylon Substances 0.000 claims description 8
- 229920001778 nylon Polymers 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000013049 sediment Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 102000010637 Aquaporins Human genes 0.000 claims 3
- 108010063290 Aquaporins Proteins 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 23
- 238000010438 heat treatment Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 16
- 239000003795 chemical substances by application Substances 0.000 abstract description 14
- 239000004576 sand Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 210000003323 beak Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/084—Screens comprising woven materials, e.g. mesh or cloth
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/088—Wire screens
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- 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
Abstract
The invention belongs to geothermal utilization fields.Earth surface water source terrestrial heat utilization system provided by the invention based on earth source heat pump, heat source well are arranged near earth surface water source, can be by the energy of surface water in heat source well in geothermal system.It is designed with heat exchanger in each heat source well, the thermal energy for collecting surface water, refrigerant and heating agent pass through multiple cycle heat exchange in heat exchanger, and heat transfer effect is more preferable.
Description
Technical field
The present invention relates to geothermal utilization fields, and in particular to the earth surface water source terrestrial heat utilization system based on earth source heat pump.
Background technology
Earth surface water source refer in surface water can newer fresh water amount year by year, be the important component of water resource, including ice
Snow-broth, rivers and creeks water and lakes and marhshes water etc. usually indicate its quantity with the natural stream runoff after reduction.Due to surface water and underground
There is certain contacts between water, therefore, the part water in recharge of ground water river must be deducted in water resources assessment.
But current geothermal system is not applied on earth surface water source so that the thermal energy of earth surface water source is not utilized.But
Be in the prior art and provide effective earth surface water source utilize system.
Invention content
For the defects in the prior art, the present invention provides a kind of earth surface water source geothermal utilization system based on earth source heat pump
System can realize that earth surface water source geothermal utilization, earth surface water source capacity usage ratio are high.
Earth surface water source terrestrial heat utilization system based on earth source heat pump, including heat-exchange system, earth's surface pipeline and earth source heat pump
System；Ground-source heat pump system includes compressor, evaporator, expansion valve and condenser；The entrance of evaporator respectively with heat exchange be
The outlet of system is connected with the outlet of earth's surface pipeline, the entrance outlet with the outlet of heat-exchange system and earth's surface pipeline respectively of condenser
Connection, the outlet of evaporator connect with the entrance of the entrance of heat-exchange system and earth's surface pipeline respectively, the outlet of condenser respectively with
The entrance of heat-exchange system is connected with the entrance of earth's surface pipeline；The heat-exchange system includes circulating pump, heat exchange valve, setting in surface water
Heat source well near source and heat exchanger；Heat source well includes well room, is arranged in the indoor screen pipe of well and sediment tube；Precipitate bottom of the tube
It is welded in well room by steel plate, heat source well weight well room depth is 3000 meters~5000m；Heat exchanger is arranged in heat source well；It changes
Hot device is connected with circulating pump and heat exchange valve successively；The earth's surface pipeline is embedded in house indoor below ground；The heat exchanger includes
Heat exchanger tube and be arranged heat exchanger tube both ends heat exchange entrance and heat exchange outlet；Heat exchanger tube include heat exchange inner tube and with heat exchange
The heat exchange outer tube of inner tube coaxial arrangement, the inner cavity of heat exchange inner tube form the cold water channel of connection heat exchange entrance and heat exchange outlet, change
Chamber between hot inner tube and heat exchange outer tube forms the hot water channel for being connected to heat exchange entrance and heat exchange outlet；In heat exchange inner tube successively
It is mutually parallel and is equipped with first partition, second partition and third partition board, cold water channel is divided into first chamber, second chamber, the
Three chambers and the 4th chamber；Further include the first connecting tube, the second connecting tube, third connecting tube and the 4th connecting tube；First connection
Pipe is arranged from first chamber across second chamber；Second connecting tube is stretched into across third chamber in the 4th chamber from second chamber,
And wear back the setting of third chamber from the 4th chamber flex；Third connecting tube stretches into first chamber from third chamber across second chamber
Interior setting；Third connecting tube passes through second chamber and third chamber to stretch into the 4th chamber and be arranged from first chamber.
Preferably, the heat exchange inner tube is made from a material that be thermally conductive.
Preferably, the end of first connecting tube, the second connecting tube, third connecting tube and the 4th connecting tube is equipped with list
To valve；The flap of check valve is along the direction opening for passing through second chamber from first chamber in wherein the first connecting tube；Second connects
The flap for taking over the check valve in the end in second chamber is opened along from second chamber across the direction of third chamber, the
The flap that two connecting tubes are located at check valve in the indoor end of third chamber passes through the direction of third chamber to beat along from the 4th chamber
It opens；The flap of check valve is along the direction opening for passing through second chamber from third chamber in third connecting tube；In 4th connecting tube
The flap of check valve is along the direction opening for passing through second chamber from first chamber.
Preferably, it is additionally provided with filter in the heat source well, filter includes：First level filtering device and secondary filtration dress
It sets, the two-stage filter is set in the first level filtering device；The first level filtering device includes base pipe, protection gear
Muscle and packet net, the base pipe are pipe, have been evenly arranged permeable hole on the basis tube wall, the protection block reinforcement is vertically welded
It is connected in basic pipe outer wall, protection block reinforcement is equally spaced, and the packet net is wrapped in protection block reinforcement and basic pipe outer wall, packet net
The range vertically wrapped up is more than the range of protection block reinforcement, and packet net external application iron wire is fastened in protection block reinforcement and basic pipe outer wall
On；The two-stage filter includes inner tube, outer tube, partition board and filter core, and said inner tube and outer tube are pipe, inner and outer tubes
It is coaxially disposed, has been evenly arranged permeable hole on outer tube wall, outer tube top is provided with hanging ring, described partition board one end and outer wall of inner tube
It is fixedly connected, the partition board other end is fixedly connected with outer tube wall, and partition board will be divided into multiple chambers between inner tube and outer tube, described
Filter core is filled in the cavity, and chamber upper and lower side is opening, for the water after filter element filtering to be discharged；The outer tube top is set
It is equipped with outwardly projecting annular outer tube excrescence, the base pipe is provided with excrescence and base on inwardly projecting ring foundation pipe
Excrescence under plinth pipe, the outer tube are passed down through excrescence inner circle on the base pipe, and outer tube excrescence is pressed on base pipe and dashes forward
Go out on body, outer pipe bottom is pressed under the base pipe on excrescence, is padded between excrescence and outer tube excrescence on the base pipe
There is rubber cushion, rubber cushion is lined between excrescence and outer pipe bottom under the base pipe.
Preferably, the filter core is stainless steel filter core, is provided on the outer wall and partition board of said inner tube outwardly projecting solid
Determine part, the fixing piece is for fixing the stainless steel filter core.
Preferably, the cross-sectional area of each chamber is equal.
Preferably, the permeable hole of the base pipe is strip-shaped hole, and adjacent two rows mutually stagger the strip-shaped hole above and below.
Preferably, it is 20mm that the protection block reinforcement, which uses antirust round steel, a diameter of 4mm of round steel, round steel spacing,.
Preferably, the packet net is nylon yarn packet net.
Preferably, the iron wire uses galvanized wire, and it is 10mm that iron wire, which winds spacing,.
As shown from the above technical solution, the earth surface water source terrestrial heat utilization system provided by the invention based on earth source heat pump, heat
Source well is arranged near earth surface water source, can be by the energy of surface water in heat source well in geothermal system.In each heat source well
It is designed with heat exchanger, the thermal energy for collecting surface water, refrigerant and heating agent pass through multiple cycle heat exchange, heat transfer effect in heat exchanger
More preferably.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar reference numeral.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 shows the structural schematic diagram of the terrestrial heat utilization system provided in the present embodiment.
Fig. 2 shows the structural schematic diagrams of heat exchanger in the terrestrial heat utilization system provided in the present embodiment；
Fig. 3 is the schematic cross-sectional view of filter in the embodiment of the present invention；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the B-B sectional views of Fig. 3；
Fig. 6 is the C-C sectional views of Fig. 3；
Fig. 7 is the structural schematic diagram that the base pipe of filter in the embodiment of the present invention is combined with two-stage filter；
Fig. 8 is the structural schematic diagram of the two-stage filter of filter in the embodiment of the present invention.
In attached drawing, 41- heat-exchange systems, 42- ground-source heat pump systems, 43- earth's surface pipelines, 21- first chambers, the second chambers of 22-
Room, 23- third chambers, the 4th chambers of 24-, 25- first partitions, 26- second partitions, 27- third partition boards, 30- heat exchange entrances,
31- heat exchange outlet, the first connecting tubes of 32-, the second connecting tubes of 33-, 34- third connecting tubes, the 4th connecting tubes of 35-.1- base pipes；
Excrescence on 11- base pipes；Excrescence under 12- base pipes；2- protects block reinforcement；3- packet nets；4- iron wires；5- outer tubes；The outer rostrums of 51-
Go out body；52- hanging rings；6- inner tubes；61- fixing pieces；7- chambers；8- partition boards；9- permeable holes.
Specific implementation mode
The embodiment of technical solution of the present invention is described in detail below in conjunction with attached drawing.Following embodiment is only used for
Clearly illustrate technical scheme of the present invention, therefore be intended only as example, and the protection of the present invention cannot be limited with this
Range.
Embodiment：
Earth surface water source terrestrial heat utilization system based on earth source heat pump, as shown in Figure 1, including heat-exchange system 41, earth's surface pipeline
43 and ground-source heat pump system 42；Ground-source heat pump system 42 includes compressor, evaporator, expansion valve and condenser；Evaporator
Entrance connect respectively with the outlet of heat-exchange system and the outlet of earth's surface pipeline, the entrance of condenser goes out with heat-exchange system respectively
Mouth is connected with the outlet of earth's surface pipeline, and the outlet of evaporator is connect with the entrance of the entrance of heat-exchange system and earth's surface pipeline respectively,
The outlet of condenser is connect with the entrance of the entrance of heat-exchange system and earth's surface pipeline respectively；The heat-exchange system include circulating pump,
Heat exchange valve, the heat source well being arranged near earth surface water source and heat exchanger；Heat source well includes well room, is arranged in the indoor screen pipe of well
And sediment tube；Precipitation bottom of the tube is welded on by steel plate in well room, and heat source well weight well room depth is 3000 meters~5000m；Heat exchange
Device is arranged in heat source well；Heat exchanger is connected with circulating pump and heat exchange valve successively；The earth's surface pipeline is embedded in house indoor ground
Lower section；The heat exchanger, as shown in Fig. 2, including heat exchanger tube and be arranged heat exchanger tube both ends heat exchange entrance 30 and exchange heat out
Mouth 31；Heat exchanger tube includes heat exchange inner tube and the heat exchange outer tube being coaxially disposed with heat exchange inner tube, and the inner cavity of heat exchange inner tube, which is formed, to be connected
The cold water channel of logical heat exchange entrance and heat exchange outlet, the chamber formation between heat exchange inner tube and heat exchange outer tube be connected to exchange heat entrance and
Exchange heat the hot water channel exported；It is mutually parallel successively in heat exchange inner tube equipped with first partition 25, second partition 26 and third partition board
27, cold water channel is divided into first chamber 21, second chamber 22, third chamber 23 and the 4th chamber 24；It further include the first company
Take over 32, the second connecting tube 33, third connecting tube 34 and the 4th connecting tube 35；First connecting tube passes through the second chamber from first chamber
Room is arranged；Second connecting tube is stretched into across third chamber in the 4th chamber from second chamber, and wears back from the 4th chamber flex
Three chambers are arranged；Third connecting tube is stretched into across second chamber in first chamber from third chamber to be arranged；Third connecting tube is from
One chamber pass through second chamber and third chamber stretch into setting in the 4th chamber.
Precipitation bottom of the tube is welded on by steel plate in well room, can guarantee that sediment tube is located in solid well room in this way, such as
Bottom is passed into disuse in fruit sediment tube, can be filled with rubble.In view of the water source situation of earth surface water source, heat source well weight well room is deep
Degree is 3000 meters~5000m, can ensure the thermal energy for preferably absorbing earth surface water source in this way, while not destroying earth surface water source
Geology looks.
Heating agent enters hot water channel from heat exchange entrance, and is flowed out from heat exchange outlet；Refrigerant enters cold water from heat exchange entrance and leads to
Road, and realize heating agent and refrigerant from heat exchange outlet outflow by the heat conduction and fluid of heat exchange inner tube wall surface in the convection current of wall surface
Heat exchange.Refrigerant is after heat exchange entrance enters cold water channel, and part refrigerant rests in first chamber, the heating agent with hot water channel
Realize that heat exchange, part refrigerant flow to second chamber along the first connecting tube from first chamber.Into the refrigerant of second chamber, part
Refrigerant rests in second chamber, realizes and exchanges heat with the heating agent of hot water channel, and part refrigerant is along the second connecting tube from the second chamber
Room flows to third chamber.Into the refrigerant of third chamber, part refrigerant rests in third chamber, real with the heating agent of hot water channel
It now exchanges heat, part refrigerant flows to first chamber along third connecting tube from third chamber.Into the refrigerant of first chamber, part is cold
Matchmaker rests in first chamber, realizes and exchanges heat with the heating agent of hot water channel, and part refrigerant is along the 4th connecting tube from first chamber
The 4th chamber is flowed to, and is flowed out from heat exchange outlet.The refrigerant can realize repeatedly cycle and repeatedly heat exchange in energy converter, can
More efficiently realize heat exchange.The heat exchange inner tube is made from a material that be thermally conductive, and can preferably improve the heat exchange effect of heating agent and refrigerant
Fruit.
Under supplying thermal condition, the ground-source heat pump system is followed by entrance four-way reversing valve and outlet four-way reversing valve control
The flow direction of ring water makes outdoor recirculated water (both surface water) be introduced into the evaporator heat release, heating agent is transferred heat to, after cooling
It returns to ground buried via hole to absorb heat again, forming chamber outer circulation.The ground-source heat pump system, will be in the steaming by the compressor work
The heating agent that hair device has absorbed heat passes to the condenser, and the interior of heating agent and earth's surface pipeline is completed in the condenser
The heat exchange of recirculated water；After heating agent after heat transfer cooling is depressurized by the expansion valve, back flows back into the evaporator and inhale again
Heat forms heat pump heat supply cycle.Indoor circulating water draw the condenser heat reach heating temperature after, pass through earth's surface pipeline
Indoor heat release is completed, condenser is returned after cooling and is absorbed heat again, indoor circulation is formed, reaches indoor heating effect.
Under cooling condition, the outdoor recirculated water in heat-exchange system rejects heat to heat source well by the heat exchanger,
It is sent into the condenser of the ground-source heat pump system afterwards, absorbs the heat in refrigerant, then returns to release heat, is followed outside forming chamber
Ring.The ground-source heat pump system acting will complete exothermic coolant transmission to the evaporator, and in institute in the condenser
State the heat that indoor circulating water in earth's surface pipeline is absorbed in evaporator；Refrigerant after heat absorption heating back flows back into the condenser again
Secondary heat release forms heat pump refrigeration cycle.The indoor circulating water to cool down through the evaporator heat release, by earth's surface pipeline suction chamber
Heat then returns to evaporator heat release again, completes indoor circulation, realizes the purpose of room temperature lowering.
The terrestrial heat utilization system, heat source well are arranged near earth surface water source, can use the energy of surface water in heat source well
In geothermal system.It is designed with heat exchanger in each heat source well, refrigerant and heating agent in the thermal energy heat exchanger for collecting surface water
By multiple cycle heat exchange, heat transfer effect is more preferable.
In order to utmostly exchange heat, reach better heat transfer effect.
Refrigerant return in order to prevent, first connecting tube, the second connecting tube, third connecting tube and the 4th connecting tube end
Portion is equipped with check valve；The flap of check valve passes through the direction of second chamber to beat along from first chamber in wherein the first connecting tube
It opens；Second connecting tube is located at the flap of check valve in the end in second chamber along the side for passing through third chamber from second chamber
To opening, the flap that the second connecting tube is located at check valve in the indoor end of third chamber passes through third chamber along from the 4th chamber
Direction open；The flap of check valve is along the direction opening for passing through second chamber from third chamber in third connecting tube；4th
The flap of check valve is along the direction opening for passing through second chamber from first chamber in connecting tube.
The setting of check valve ensure that refrigerant after heat exchange entrance enters first chamber in above-mentioned connecting tube, through the first connection
Pipe enters second chamber, enters third chamber using the second connecting tube, enters first chamber through third connecting tube, finally from
After one chamber enters the 4th chamber, from the outlet outflow that exchanges heat, this ensure that refrigerant ability after repeatedly recycling and repeatedly exchanging heat
From heat exchange outlet outflow, heat transfer effect is more preferable.
Heat source well provides source of recycled water for entire ground-source heat pump system, is the important component of whole system, for heat
The filter of source well is mainly used for being filtered source of recycled water.But the filter of existing heat source well is relatively rough, it can only
The sand of a part of bulky grain is kept off, worry sand effect is poor, and silt is easily accessible in heat source well, and hoistway is caused to silt up, and immersible pump will contain
The water extraction of silt is utilized, and is be easy to cause the damage of equipment, is influenced system operation, causes heavy losses；If using existing
The smaller accurate filter of some filter openings, since filter opening is small, is easy to block although filter effect is preferable, in well cleaning and
It is inconvenient, and there are contradictory relationships between the easy blocking of good worry sand effect and filter opening of heat source well tube filter.
Thus in the present embodiment also provide for geothermal well filter, as shown in figures 3-8, including first level filtering device and
Two-stage filter, two-stage filter are set in first level filtering device；First level filtering device include circular base pipe 1,
Block reinforcement 2 and packet net 3 are protected, permeable hole 9 has been evenly arranged on 1 tube wall of base pipe, permeable hole 9 is strip-shaped hole, upper and lower adjacent two rows
It mutually staggers, protection block reinforcement 2 is vertically welded on 1 outer wall of base pipe, its spacing is using the antirust round steel of a diameter of 4mm
20mm, packet net 3 are nylon yarn packet net 3, are wrapped on protection block reinforcement 2 and 1 outer wall of base pipe, the range that packet net 3 vertically wraps up is big
In the range of protection block reinforcement 2,3 external application galvanized wire 4 of packet net is fastened with 10mm spacing outside protection block reinforcement 2 and base pipe 1
On wall；Two-stage filter includes inner tube 6, outer tube 5, partition board 8 and filter core, and inner tube 6 and outer tube 5 are pipe, inner tube 6 and outer tube
5 are coaxially disposed, and permeable hole 9 has been evenly arranged on 5 tube wall of outer tube, and permeable hole 9 is round hole, and left and right two row mutually stagger, basis
The discharge area of the permeable hole 9 of pipe is more than the discharge area of the permeable hole 9 of outer tube, the setting of 5 top of outer tube there are four hanging ring 52, every
8 one end of plate is fixedly connected with 6 outer wall of inner tube, and 8 other end of partition board is fixedly connected with 5 inner wall of outer tube, and partition board 8 is by inner tube 6 and outer tube 5
Between be divided into the equal chamber 7 of multiple cross-sectional areas, filter core uses stainless steel filter core, is filled in chamber 7, about 7 chamber
End is that opening is provided with outwardly projecting fixing piece for the water after filter element filtering to be discharged on the outer wall and partition board 8 of inner tube 6
61, fixing piece 61 for fixing stainless steel filter core, 1 surfaces externally and internally of base pipe, the surfaces externally and internally of inner tube 6, outer tube 5 surfaces externally and internally
It is coated with corrosion-resistant coating with the surface of permeable hole 9；5 top of outer tube is provided with outwardly projecting annular outer tube excrescence 51, basis
Pipe 1 is provided on inwardly projecting ring foundation pipe that excrescence 12, outer tube 5 are passed down through base pipe under excrescence 11 and base pipe
11 inner circle of upper excrescence, outer tube excrescence 51 are pressed on base pipe on excrescence 11, and 5 bottom of outer tube is pressed in excrescence under base pipe
On 12, be lined with rubber cushion on base pipe between excrescence 11 and outer tube excrescence 51, under base pipe excrescence 12 and 5 bottom of outer tube it
Between be lined with rubber cushion.
Filter of the present invention for heat source well includes first level filtering device and two-stage filter.Wherein by-pass filtration fills
It sets and silt is slightly considered, be mainly used for filtering out the sand of bulky grain；It is evenly arranged bar shaped permeable hole on 1 tube wall of base pipe
9, upper and lower adjacent two rows mutually stagger, and permeable hole 9 is made to be more evenly distributed, filtering into base pipe 1 underground water also evenly,
Nylon yarn packet net 3 is wrapped in by protection 2 pad of block reinforcement outside pipe, is fixed with galvanized wire 4, and underground water will enter in heat source well,
Two layers of the filtering of permeable hole 9 by nylon yarn packet net 3 and base pipe is first had to, the sand of bulky grain is filtered out.Secondary filtration fills
It sets and smart worry is carried out to silt, be mainly used for filtering out tiny silt, two-stage filter includes inner tube 6, outer tube 5,8 and of partition board
Filter core, inner tube 6 and outer tube 5 are coaxially arranged, and partition board 8 is the connecting framework of inner tube 6 and outer tube 5, at the same by inner tube 6 and outer tube 5 it
Between space be divided into the equal chamber 7 of multiple cross-sectional areas, segmentation in this way filtering, 7 water of each chamber is uniform, can be promoted
The effect and efficiency of filtering, chamber 7 is interior to fill stainless steel filter core, and design in this way, it is one to make entire two-stage filter
A entirety, sound construction；Meanwhile there is stainless steel filter core good strainability, filtered underground water can meet system and make
With requiring, corrosion resistance, heat resistance, resistance to pressure, wearability are good, can meet severe underground environment, core stomata uniformly, it is accurate
Filtering accuracy, the flow of unit area is big, can improve the efficiency of essence worry, meet system water demand, can be with after cleaning
It reuses, it is free of replacement, it economizes on resources, reduces cost；Two-stage filter is mainly by 9 He of permeable hole being located on 5 tube wall of outer tube
Two layers of filtering of filter core in chamber 7, left and right adjacent two row of permeable hole 9 mutually stagger, and so that permeable hole 9 is more evenly distributed, into chamber
The underground water of room 7 is also evenly；The discharge area of the permeable hole 9 of base pipe is more than the discharge area of the permeable hole 9 of outer tube, can protect
The thick worry of card provides enough waters for essence worry, promotes filter efficiency；Permeable hole 9 is not arranged for inner tube 6, and 7 upper and lower end of chamber is open,
It after underground water enters chamber 7, flows to 7 both ends of chamber, is discharged from 7 upper and lower end of chamber, design in this way extends ground
Flow path of the lower water in filter core, improves filter effect, since in filter process, filter core is easy to happen displacement, conglomeration, Gu
Determine part 61 and fixed function risen to stainless steel filter core, when filtering, the flowing of water will not be such that filter core is subjected to displacement, filter core will not conglomeration,
To ensure that the normal work of filter core, filter effect is improved；The environment of underground is generally all relatively more severe, and corrosivity is stronger,
In the surface of 1 surfaces externally and internally of base pipe, the surfaces externally and internally of inner tube 6, the surfaces externally and internally of outer tube 5 and permeable hole 9 these and underground water
Or the part that soil is in direct contact applies one layer of corrosion-resistant coating, can reduce the corrosion of filter component, prolong the service life.
First level filtering device filter opening is larger, is not easy to plug, and can filter out bulky grain sand, and two-stage filter filter opening is small,
Be easy block, tiny silt can be filtered out, by the way of this classified filtering, can more thoroughly filter out sand and
Reduce the probability of plugged filter.
Outer tube 5 is passed down through 11 inner circle of excrescence on base pipe, and outer tube excrescence 51 is pressed on base pipe on excrescence 11,
5 bottom of outer tube is pressed under base pipe on excrescence 12, by this dismountable mode by two-stage filter and by-pass filtration
Device is combined together, and in combination with rubber cushion is lined between position, rubber cushion, sealing are compacted by the dead weight of two-stage filter
Effect is good, and silt will not be flowed out from gap；Two-stage filter and first level filtering device detachably detach, and can pass through outer tube 5
Two-stage filter is integrally lifted cleaning, repair or replacement by the hanging ring 52 of top setting, again will after cleaning, repair or replacement
Two-stage filter is hung in heat source well, is used in combination with first level filtering device, the worry sand effect to solve
It is easy the contradiction between blocking with filter opening.
The present invention the filter for heat source well draw water it is different with the method for operation in recharge, it is specific as follows：
When drawing water, first level filtering device and two-stage filter collective effect are needed, secondary protection device is hung in into heat source
In well, outer tube 5 is passed down through 11 inner circle of excrescence on base pipe, and outer tube excrescence 51 is pressed on base pipe on excrescence 11, with
First level filtering device fits together, and the underground water containing silt flows through nylon yarn packet net 3, permeable through the bar shaped on base pipe 1
Hole 9 enters in heat source well, completes the by-pass filtration of silt by the filtering of nylon yarn packet net 3 and bar shaped permeable hole 9 outside well；Through
The underground water crossed after thick worry enters chamber 7 through the round permeable hole on outer tube 5, and the essence through stainless steel filter core is considered, from chamber 7,
Lower open mouth is discharged, and the secondary filtration of silt is completed, to obtain the underground water source for meeting production requirement.
Recharge is that the water source after utilization is gone back to underground through heat source well irrigation to need two level to reduce the resistance of recharge
Filter device is integrally hung out outside well, and recharge water is flowed out through the bar shaped permeable hole 9 on base pipe 1, is then penetrated nylon yarn packet net 3 and is flowed
Return to underground, with draw water filtering when flow direction on the contrary, play the role of cleaning to first level filtering device, prevent filter hole from blocking,
Meanwhile after two-stage filter is hung out, it can be cleaned, repaired or be maintained.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the claim of the present invention and the range of specification.
Claims (10)
1. the earth surface water source terrestrial heat utilization system based on earth source heat pump, including heat-exchange system, earth's surface pipeline and earth source heat pump system
System；Ground-source heat pump system includes compressor, evaporator, expansion valve and condenser；The entrance of evaporator respectively with heat-exchange system
Outlet connected with the outlet of earth's surface pipeline, the entrance of condenser connects with the outlet of heat-exchange system and the outlet of earth's surface pipeline respectively
Connect, the outlet of evaporator is connect with the entrance of the entrance of heat-exchange system and earth's surface pipeline respectively, the outlet of condenser respectively with change
The entrance of hot systems is connected with the entrance of earth's surface pipeline；The heat-exchange system includes circulating pump, heat exchange valve, heat source well and heat exchange
Device；Heat exchanger is arranged in heat source well；Heat exchanger is connected with circulating pump and heat exchange valve successively；It is characterized in that, the heat source well
It is arranged near earth surface water source；Heat source well includes well room, is arranged in the indoor screen pipe of well and sediment tube；Precipitation bottom of the tube passes through
Steel plate is welded in well room, and heat source well weight well room depth is 3000 meters~5000m；The earth's surface pipeline is with being embedded in house indoor
Below face；The heat exchanger include heat exchanger tube and be arranged heat exchanger tube both ends heat exchange entrance and heat exchange outlet；Heat exchanger tube packet
The heat exchange outer tube for including heat exchange inner tube and being coaxially disposed with heat exchange inner tube, the inner cavity of heat exchange inner tube formed connection heat exchange entrance and
Exchange heat the cold water channel exported, the heat that the chamber formation between heat exchange inner tube and heat exchange outer tube is connected to heat exchange entrance and heat exchange exports
Aquaporin；It is mutually parallel successively in heat exchange inner tube equipped with first partition, second partition and third partition board, cold water channel is divided into
First chamber, second chamber, third chamber and the 4th chamber；Further include the first connecting tube, the second connecting tube, third connecting tube and
4th connecting tube；First connecting tube is arranged from first chamber across second chamber；Second connecting tube passes through third from second chamber
Chamber stretches into the 4th chamber, and wears back the setting of third chamber from the 4th chamber flex；Third connecting tube is passed through from third chamber
Second chamber stretches into setting in first chamber；Third connecting tube passes through second chamber and third chamber to stretch into the 4th from first chamber
Setting in chamber.
2. the earth surface water source terrestrial heat utilization system according to claim 1 based on earth source heat pump, which is characterized in that described to change
Hot inner tube is made from a material that be thermally conductive.
3. the earth surface water source terrestrial heat utilization system according to claim 1 based on earth source heat pump, which is characterized in that described
One connecting tube, the second connecting tube, third connecting tube and the 4th connecting tube end be equipped with check valve；In wherein the first connecting tube
The flap of check valve is along the direction opening for passing through second chamber from first chamber；Second connecting tube is located at the end in second chamber
Along passing through the direction of third chamber to open from second chamber, the second connecting tube is located in third chamber the flap of check valve in portion
End in check valve flap along from the 4th chamber pass through third chamber direction open；Check valve in third connecting tube
Flap is along the direction opening for passing through second chamber from third chamber；The flap of check valve is along from the first chamber in 4th connecting tube
Room passes through the direction of second chamber to open.
4. the earth surface water source terrestrial heat utilization system according to claim 1 based on earth source heat pump, which is characterized in that the heat
Filter is additionally provided in the well of source, filter includes：First level filtering device and two-stage filter, the two-stage filter setting
In in the first level filtering device；The first level filtering device includes base pipe, protection block reinforcement and packet net, and the base pipe is circle
It manages, permeable hole has been evenly arranged on the basis tube wall, the protection block reinforcement is vertically welded in basic pipe outer wall, protection gear
Muscle is equally spaced, and the packet net is wrapped in protection block reinforcement and basic pipe outer wall, and the range that packet net vertically wraps up is more than protection
The range of block reinforcement, packet net external application iron wire are fastened in protection block reinforcement and basic pipe outer wall；The two-stage filter includes
Inner tube, outer tube, partition board and filter core, said inner tube and outer tube are pipe, and inner and outer tubes are coaxially disposed, on outer tube wall uniformly
Be disposed with permeable hole, outer tube top is provided with hanging ring, and described partition board one end is fixedly connected with outer wall of inner tube, the partition board other end with it is outer
Inside pipe wall is fixedly connected, and partition board will be divided into multiple chambers between inner tube and outer tube, and the filter core is filled in the cavity, chamber
Room upper and lower side is opening, for the water after filter element filtering to be discharged；The outer tube top is provided with outwardly projecting annular outer tube
Excrescence, the base pipe are provided on inwardly projecting ring foundation pipe excrescence, the outer tube under excrescence and base pipe
It is passed down through excrescence inner circle on the base pipe, outer tube excrescence is pressed on base pipe on excrescence, and outer pipe bottom is pressed in institute
It states under base pipe on excrescence, is lined with rubber cushion on the base pipe between excrescence and outer tube excrescence, dashes forward under the base pipe
Go out and is lined with rubber cushion between body and outer pipe bottom.
5. the earth surface water source terrestrial heat utilization system according to claim 4 based on earth source heat pump, it is characterised in that：The filter
Core is stainless steel filter core, outwardly projecting fixing piece is provided on the outer wall and partition board of said inner tube, the fixing piece is for solid
The fixed stainless steel filter core.
6. the earth surface water source terrestrial heat utilization system according to claim 5 based on earth source heat pump, it is characterised in that：Each institute
The cross-sectional area for stating chamber is equal.
7. the earth surface water source terrestrial heat utilization system according to claim 4 based on earth source heat pump, it is characterised in that：The base
The permeable hole of plinth pipe is strip-shaped hole, and adjacent two rows mutually stagger the strip-shaped hole above and below.
8. the earth surface water source terrestrial heat utilization system according to claim 7 based on earth source heat pump, it is characterised in that：The guarantor
It is 20mm that guard block muscle, which uses antirust round steel, a diameter of 4mm of round steel, round steel spacing,.
9. the earth surface water source terrestrial heat utilization system according to claim 7 based on earth source heat pump, it is characterised in that：The packet
Net is nylon yarn packet net.
10. the earth surface water source terrestrial heat utilization system according to claim 9 based on earth source heat pump, it is characterised in that：It is described
Iron wire uses galvanized wire, and it is 10mm that iron wire, which winds spacing,.
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| CN201610773095.XA CN106440427B (en) | 2016-08-30 | 2016-08-30 | Earth surface water source terrestrial heat utilization system based on earth source heat pump |
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| CN201610773095.XA CN106440427B (en) | 2016-08-30 | 2016-08-30 | Earth surface water source terrestrial heat utilization system based on earth source heat pump |
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| CN106440427B true CN106440427B (en) | 2018-10-19 |
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| CN108060660B (en) * | 2017-12-13 | 2019-07-02 | 湖南中大经纬地热开发科技有限公司 | A kind of reservoir dam having heat exchange function |
| CN115163011B (en) * | 2022-06-28 | 2023-10-13 | 中国矿业大学 | Geothermal resource automatic pressure control circulation desanding exploitation system and exploitation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526717Y (en) * | 2002-03-29 | 2002-12-18 | 成都希望电子研究所 | Geothermal pump air conditioner |
| KR20060016474A (en) * | 2004-08-18 | 2006-02-22 | 권영현 | Ground source heat pump type heating and cooing system haviang means for feeding assistant heat source |
| CN101738001A (en) * | 2009-12-18 | 2010-06-16 | 同济大学 | Composite energy system of solar energy, ground source heat pump and chilled water storage |
| CN102012131A (en) * | 2009-09-08 | 2011-04-13 | 施国梁 | A multiple-well-circle heating exchange method for ground source heat pump system and a system for the same |
-
2016
- 2016-08-30 CN CN201610773095.XA patent/CN106440427B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526717Y (en) * | 2002-03-29 | 2002-12-18 | 成都希望电子研究所 | Geothermal pump air conditioner |
| KR20060016474A (en) * | 2004-08-18 | 2006-02-22 | 권영현 | Ground source heat pump type heating and cooing system haviang means for feeding assistant heat source |
| CN102012131A (en) * | 2009-09-08 | 2011-04-13 | 施国梁 | A multiple-well-circle heating exchange method for ground source heat pump system and a system for the same |
| CN101738001A (en) * | 2009-12-18 | 2010-06-16 | 同济大学 | Composite energy system of solar energy, ground source heat pump and chilled water storage |
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