CN207556021U - Mid-deep strata geothermal-source heat pump system - Google Patents

Mid-deep strata geothermal-source heat pump system Download PDF

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Publication number
CN207556021U
CN207556021U CN201721268305.6U CN201721268305U CN207556021U CN 207556021 U CN207556021 U CN 207556021U CN 201721268305 U CN201721268305 U CN 201721268305U CN 207556021 U CN207556021 U CN 207556021U
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China
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mid
heat
deep strata
circulatory mediator
sleeve
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CN201721268305.6U
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周聪
陈军
陈永平
王重超
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Shanghai Cicc Energy Investment Co Ltd
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Shanghai Cicc Energy Investment Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

Abstract

The utility model discloses a kind of mid-deep strata geothermal-source heat pump system, mid-deep strata underground heat bore hole heat exchanger is installed in rock-soil layer;Mid-deep strata underground heat bore hole heat exchanger includes outer tube and inner sleeve;Outer tube bottom end and side wall closing, inner sleeve are placed in outer tube, and inner sleeve bottom end opening is connected with outer sleeve bottom;Outer sleeve upper mouth connects circulatory mediator feed line;Inner sleeve upper port connection circulatory mediator outflow pipeline;The other end of circulatory mediator feed line and circulatory mediator outflow pipeline is connected by the vaporizer side of high temperature heat source type water resource heat pump host;Ground source circulating pump is arranged on circulatory mediator feed line, for circulatory mediator to be driven to flow downward along outer sleeve inner wall and the gap of inner sleeve pipe outer wall.The mid-deep strata geothermal-source heat pump system of the utility model, can only exchange mid-deep strata geothermal energy under the premise of not pumping underground hot water, take full advantage of mid-deep strata geothermal energy as surface structures heat supply.

Description

Mid-deep strata geothermal-source heat pump system
Technical field
The utility model is related to mid-deep strata geothermal energy developments to utilize field, more particularly to a kind of mid-deep strata geothermal-source heat pump system System.
Background technology
At present, " haze " has become the great environmental problem in China, especially winter " haze " especially severe, wherein coal-fired For it is thermogenetic it is granular material discharged be haze generate one of the major reasons.Government department attaches great importance to this problem, publication Multinomial policy, to change traditional heat supply mode, using clean energy resource heat supply, such as " coal changes combustion ", " coal changes electricity " policy.
As a kind of clean energy resource, exploitation is rational to be developed and used geothermal energy, receives more and more attention, country The Committee of Development and Reform, Bureau of Energy issue jointly in January, 2017《Geothermal energy development utilizes " 13 " to plan》(Hair changes the energy [2017] No. 158).
China has vast territory, and geothermal energy resources enrich, and is investigated according to Ministry of Land and Resources, and national 336 ground level more than cities are shallow Layer geothermal energy year Allowable exploitation quantity converts into 700,000,000 mark coals;National geothermal resource of hydrothermal type amount converts into 1.25 trillion tons of mark coals, Nian Ke Production of resources amount converts into 1,900,000,000 tons of mark coals;And the hot dry rock stock number of 3000-10000 meters of buried depth converts into 856,000,000,000,000 tons of mark coals.
About 3 DEG C/100 meters of China's Average geothermal gradient.I.e. in thermostat layer hereinafter, per increasing by 100 meters downwards, ground temperature increase is about 3℃。
At present, Winter heat supply can be used in for exploitation of geothermal, there are two types of common technologies:Geothermal source heat pump skill Art;Directly exploit mid-deep strata GEOTHERMAL WATER heat supply process.But both technologies there are it is certain the defects of, have to be solved.
Shallow ground source heat pump techniques:Geothermal well takes up a large area, using being restricted;Summer in winter cooling and heating load is uneven Weighing apparatus, system energy efficiency attenuation are serious.
Directly exploit mid-deep strata GEOTHERMAL WATER heat supply process:The area only with abundant Geothermal Resource could use, Using being restricted;Direct recovery of subterranean hot water, recharge difficulty is larger, causes the waste and pollution of groundwater resources, and long-term Groundwater abstraction, there are geologic structures to collapse equivalent risk, is a kind of energy utilization patterns of unsustainable development.Current political affairs at different levels Mansion authorities have begun to forbid recovery of subterranean hot water for Winter heat supply.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of mid-deep strata geothermal-source heat pump systems, can not extract It only exchanges mid-deep strata geothermal energy under the premise of geothermal water for, takes full advantage of mid-deep strata geothermal energy as surface structures heat supply.
In order to solve the above technical problems, mid-deep strata geothermal-source heat pump system provided by the utility model, including mid-deep strata Underground heat bore hole heat exchanger 1, source circulating pump 2, high temperature heat source type water resource heat pump host 3;
The mid-deep strata underground heat bore hole heat exchanger 1 is installed in the drilling of rock-soil layer 9;
The mid-deep strata underground heat bore hole heat exchanger 1 includes outer tube 11 and inner sleeve 12;
11 bottom end of outer tube and side wall closing;
The inner sleeve 12 is placed in the outer tube 11, and 12 bottom end opening of inner sleeve is the same as outer tube 11 Bottom connects;
11 upper port of outer tube connects circulatory mediator feed line;
12 upper port of the inner sleeve connection circulatory mediator outflow pipeline;
The other end of the other end of the circulatory mediator feed line and circulatory mediator outflow pipeline is warmed by height Vaporizer side connection in source type water resource heat pump host 3;
Described ground source circulating pump 2 is arranged on circulatory mediator feed line, for driving circulatory mediator along mid-deep strata The gap of hot 1 outer tube of bore hole heat exchanger, 11 inner wall and 12 outer wall of inner sleeve flows downward.
Preferably, the mid-deep strata underground heat bore hole heat exchanger 1 is installed on the rock-soil layer that depth is 1000 meters to 4000 meters In 9 drillings.
Preferably, the circulatory mediator is water or ethylene glycol solution.
Preferably, the high temperature heat source type water resource heat pump host 3 is to building air conditioning end system heat supply.
Preferably, the building air conditioning end system is fan coil system, radiant floor heating system or building are lived Hot water preparation system.
Preferably, mid-deep strata geothermal-source heat pump system further includes cooling tower 4, coolant circulation pump 5, the first valve 61 , the second valve 62,63 and the 4th valve 64 of third valve;
Cooling feed line one end is connected with circulatory mediator feed line in first threeway 71;
Pipeline connection is flowed out in second threeway 72 with circulatory mediator in cooling outflow pipeline one end;
The other end of cooling feed line is connected with the water inlet of cooling tower 4;
The other end of cooling outflow pipeline is connected with the water outlet of cooling tower 4;
The coolant circulation pump 5 is arranged on cooling outflow pipeline, is situated between for driving through the cycle after cooling of cooling tower 4 Matter flows out tube runs to circulatory mediator;
Described ground source circulating pump 2 is arranged on 1 outer tube 11 of mid-deep strata underground heat bore hole heat exchanger with first three In circulatory mediator feed line between logical 71;
First valve 61 is arranged on ground source circulating pump 2 with the circulatory mediator stream between first threeway 71 Enter on pipeline;
Second valve 62 is arranged on 1 inner sleeve 12 of mid-deep strata underground heat bore hole heat exchanger with second threeway Circulatory mediator effuser road between 72;
The third valve 63 is arranged on the cooler in cooling tower 4 with the cooling stream between first threeway 71 Enter on pipeline;
4th valve 64 is arranged on the coolant circulation pump 5 with the cooling outflow between second threeway 72 On pipeline.
The mid-deep strata geothermal-source heat pump system of the utility model, mid-deep strata underground heat bore hole heat exchanger 1 are changed using double-jacket tube formula Heat structure, buried in rock-soil layer 9, circulatory mediator flows downward under the driving of ground source circulating pump 2 along outer tube 11, to During lower flowing, exchange heat with surrounding soil, rock, temperature raising;Circulatory mediator reaches the laggard of 11 bottom of outer tube Entering inner sleeve 12 to flow up, outflow mid-deep strata underground heat bore hole heat exchanger 1 enters high temperature heat source type water resource heat pump host 3, as The heat source of high temperature heat source type water resource heat pump host 3, after circulatory mediator discharges heat, temperature reduces, and is again introduced into mid-deep strata underground heat In bore hole heat exchanger 1, closed cycle is formed, constantly extracts underground heat energy.The mid-deep strata geothermal-source heat pump system of the utility model, Mid-deep strata geothermal energy can only be exchanged under the premise of not pumping underground hot water, take full advantage of mid-deep strata geothermal energy, and pass through height For temperature-heat-source type water resource heat pump host 3 to building air conditioning end system heat supply, heat efficiency is high, has saved the energy, has not polluted row It puts, plays the role of pollution treatment and subtract haze.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, the required attached drawing to the utility model below It is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.
Fig. 1 is one example structure schematic diagram of mid-deep strata geothermal-source heat pump system of the utility model.
Reference sign in figure:
1 mid-deep strata underground heat bore hole heat exchanger;2 ground source circulating pumps;3 high temperature heat source type water resource heat pump hosts;4- is cooled down Tower;5 coolant circulation pumps;9 rock-soil layers;11 outer tubes;12 inner sleeves;61 first valves;62 second valves;63 third valves; 64 the 4th valves;71 first threeways;72 second threeways.
Specific embodiment
Below in conjunction with attached drawing, clear, complete description is carried out to the technical solution in the utility model, it is clear that retouched The embodiment stated is the part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model Apply example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the range of the utility model protection.
Embodiment one
As shown in Figure 1, mid-deep strata geothermal-source heat pump system include mid-deep strata underground heat bore hole heat exchanger 1, source circulating pump 2nd, high temperature heat source type water resource heat pump host 3;
The mid-deep strata underground heat bore hole heat exchanger 1 is installed in the drilling of rock-soil layer 9;
The mid-deep strata underground heat bore hole heat exchanger 1 includes outer tube 11 and inner sleeve 12;
11 bottom end of outer tube and side wall closing;
The inner sleeve 12 is placed in the outer tube 11, and 12 bottom end opening of inner sleeve connects with 11 bottom of outer tube It is logical;
11 upper port of outer tube connects circulatory mediator feed line;
12 upper port of the inner sleeve connection circulatory mediator outflow pipeline;
The other end of the other end of the circulatory mediator feed line and circulatory mediator outflow pipeline is warmed by height Vaporizer side connection in source type water resource heat pump host 3, heat source is provided for high temperature heat source type water resource heat pump host 3;
Described ground source circulating pump 2 is arranged on circulatory mediator feed line, for driving circulatory mediator along mid-deep strata underground heat 1 outer tube of bore hole heat exchanger, 11 inner wall and the gap of 12 outer wall of inner sleeve flow downward.
It is bored preferably, the mid-deep strata underground heat bore hole heat exchanger 1 is installed on the rock-soil layer 9 that depth is 1000 meters to 4000 meters Kong Zhong can make full use of mid-deep strata geothermal energy.
Preferably, the circulatory mediator is water or ethylene glycol solution.
Preferably, the high temperature heat source type water resource heat pump host 3 is to building air conditioning end system heat supply.
The building air conditioning end system can be fan coil system, radiant floor heating system or building domestic hot-water Preparation system etc..
Preferably, about 15 DEG C~60 DEG C variation ranges of temperature of circulatory mediator outflow mid-deep strata underground heat bore hole heat exchanger 1, high 3 host of temperature-heat-source type water resource heat pump host can adapt in the heat source temperature of 15 DEG C~60 DEG C variation ranges, heat efficiency 7.5 with On.The mid-deep strata underground heat that high temperature heat source type water resource heat pump host 3 is extracted using circulatory mediator, it is empty to building by heat pump principle Adjust end system heat supply, 40 DEG C~55 DEG C of heat supply temperature.
The mid-deep strata geothermal-source heat pump system of embodiment one, mid-deep strata underground heat bore hole heat exchanger 1 is using the heat exchange of double-jacket tube formula Structure, buried in rock-soil layer 9, circulatory mediator flows downward, downward under the driving of ground source circulating pump 2 along outer tube 11 In flow process, exchange heat with surrounding soil, rock, temperature raising;Circulatory mediator enters after reaching 11 bottom of outer tube Inner sleeve 12 flows up, and outflow mid-deep strata underground heat bore hole heat exchanger 1 enters high temperature heat source type water resource heat pump host 3, as height The heat source of temperature-heat-source type water resource heat pump host 3, after circulatory mediator discharges heat, temperature reduces, and is again introduced into mid-deep strata geothermal well In interior heat exchanger 1, closed cycle is formed, constantly extracts underground heat energy.
The mid-deep strata geothermal-source heat pump system of embodiment one, can only exchange mid-deep strata under the premise of not pumping underground hot water Geothermal energy takes full advantage of mid-deep strata geothermal energy, and passes through high temperature heat source type water resource heat pump host 3 to building air conditioning end system Heat supply, heat efficiency is high, has saved the energy, without disposal of pollutants, has played the role of pollution treatment and subtract haze.
Embodiment two
Based on embodiment one, mid-deep strata geothermal-source heat pump system further includes cooling tower 4, coolant circulation pump 5, the first valve 61st, the second valve 62,63 and the 4th valve 64 of third valve;
Cooling feed line one end is connected with circulatory mediator feed line in first threeway 71;
Pipeline connection is flowed out in first threeway 72 with circulatory mediator in cooling outflow pipeline one end;
The other end of cooling feed line is connected with the water inlet of cooling tower 4;
The other end of cooling outflow pipeline is connected with the water outlet of cooling tower 4;
The coolant circulation pump 5 be arranged on cooling outflow pipeline, for drive through 4 circulatory mediator after cooling of cooling tower to Circulatory mediator flows out tube runs;
Described ground source circulating pump 2 be arranged on 1 outer tube 11 of mid-deep strata underground heat bore hole heat exchanger with first threeway 71 it Between circulatory mediator feed line on;
First valve 61 is arranged on ground source circulating pump 2 with the circulatory mediator feed line between first threeway 71 On;
Second valve 62 is arranged on 1 inner sleeve 12 of mid-deep strata underground heat bore hole heat exchanger between second threeway 72 Circulatory mediator effuser road;
The third valve 63 is arranged on cooling tower 4 in the cooling feed line between first threeway 71;
4th valve 64 is arranged on the coolant circulation pump 5 with the cooling outflow pipeline between second threeway 72 On.
The mid-deep strata geothermal-source heat pump system of embodiment two, summer can close one valve of the ground source pipeline switching valve family status 61 and second valve 62, open cooling tower lateral line switch valve third valve 63 and the 4th valve 64, high temperature heat source type water source Heat pump main frame 3 switches to cooling condition operation, and system is formed by cooling tower 4, coolant circulation pump 5 and high temperature heat source type heat pump main frame 3 Cold operation system, to building air conditioning end system cooling;Winter can close cooling tower lateral line switch valve third valve 63 And the 4th valve 64, open one valve 61 of the ground source pipeline switching valve family status and the second valve 62, high temperature heat source type water resource heat pump Host 3 switch to heating condition operation, by deep geothermal heat bore hole heat exchanger 1, source circulating pump 2, high temperature heat source type water source heat It pumps host 3 and forms heating operation system, to building air conditioning end system heat supply.The mid-deep strata geothermal-source heat pump system of embodiment two System has winter heating's operating condition and cooling in summer operating condition, improves the utilization rate of system, saves social resources.
It these are only the preferred embodiment of the application, be not used to limit the application.Those skilled in the art is come It says, the application can have various modifications and variations.All any modifications within spirit herein and principle, made are equal Replace, improve etc., it should be included within the protection domain of the application.

Claims (6)

1. a kind of mid-deep strata geothermal-source heat pump system, which is characterized in that including mid-deep strata underground heat bore hole heat exchanger(1), source Circulating pump(2), high temperature heat source type water resource heat pump host(3);
The mid-deep strata underground heat bore hole heat exchanger(1)It is installed on rock-soil layer(9)In drilling;
The mid-deep strata underground heat bore hole heat exchanger(1)Including outer tube(11)And inner sleeve(12);
The outer tube(11)Bottom end and side wall closing;
The inner sleeve(12)It is placed in the outer tube(11)It is interior, the inner sleeve(12)The same outer tube of bottom end opening(11)Bottom Connection;
The outer tube(11)Upper port connects circulatory mediator feed line;
The inner sleeve(12)Upper port connection circulatory mediator outflow pipeline;
The other end of the other end of the circulatory mediator feed line and circulatory mediator outflow pipeline passes through high temperature heat source type Water resource heat pump host(3)Interior vaporizer side connection;
Described ground source circulating pump(2)Circulatory mediator feed line is arranged on, for driving circulatory mediator along mid-deep strata geothermal well Interior heat exchanger(1)Outer tube(11)Inner wall and inner sleeve(12)The gap of outer wall flows downward.
2. mid-deep strata geothermal-source heat pump system according to claim 1, which is characterized in that
The mid-deep strata underground heat bore hole heat exchanger(1)It is installed on the rock-soil layer that depth is 1000 meters to 4000 meters(9)In drilling.
3. mid-deep strata geothermal-source heat pump system according to claim 1, which is characterized in that
The circulatory mediator is water or ethylene glycol solution.
4. mid-deep strata geothermal-source heat pump system according to claim 1, which is characterized in that
The high temperature heat source type water resource heat pump host(3)To building air conditioning end system heat supply.
5. mid-deep strata geothermal-source heat pump system according to claim 4, which is characterized in that
The building air conditioning end system is fan coil system, radiant floor heating system or building domestic hot-water prepare system System.
6. mid-deep strata geothermal-source heat pump system according to claim 1, which is characterized in that
Mid-deep strata geothermal-source heat pump system further includes cooling tower(4), coolant circulation pump(5), the first valve(61), the second valve (62), third valve(63)And the 4th valve(64);
Cooling feed line one end is connected with circulatory mediator feed line in first threeway(71);
Pipeline connection is flowed out in second threeway with circulatory mediator in cooling outflow pipeline one end(72);
Cool down the other end and cooling tower of feed line(4)Water inlet connection;
The other end and cooling tower of cooling outflow pipeline(4)Water outlet connection;
The coolant circulation pump(5)Cooling outflow pipeline is arranged on, for driving through cooling tower(4)Circulatory mediator after cooling to Circulatory mediator flows out tube runs;
Described ground source circulating pump(2)It is arranged on mid-deep strata underground heat bore hole heat exchanger(1)Outer tube(11)With first threeway (71)Between circulatory mediator feed line on;
First valve(61)It is arranged on ground source circulating pump(2)With first threeway(71)Between circulatory mediator flow into pipe On the road;
Second valve(62)It is arranged on mid-deep strata underground heat bore hole heat exchanger(1)Inner sleeve(12)With second threeway(72)It Between circulatory mediator effuser road;
The third valve(63)It is arranged on cooling tower(4)With first threeway(71)Between cooling feed line on;
4th valve(64)It is arranged on the coolant circulation pump(5)With second threeway(72)Between cooling outflow pipeline On.
CN201721268305.6U 2017-09-29 2017-09-29 Mid-deep strata geothermal-source heat pump system Active CN207556021U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109268648A (en) * 2018-10-08 2019-01-25 王春阳 A kind of adjustable height geothermal energy equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109268648A (en) * 2018-10-08 2019-01-25 王春阳 A kind of adjustable height geothermal energy equipment

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