CN208520019U - A kind of solar energy ground-source heat pump system - Google Patents
A kind of solar energy ground-source heat pump system Download PDFInfo
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- CN208520019U CN208520019U CN201820606133.7U CN201820606133U CN208520019U CN 208520019 U CN208520019 U CN 208520019U CN 201820606133 U CN201820606133 U CN 201820606133U CN 208520019 U CN208520019 U CN 208520019U
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- water tank
- direction gearpump
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The utility model discloses a kind of solar energy ground-source heat pump systems, including solar thermal collector and underground pipe, it further include the first water tank, second water tank and mixing tank, First Heat Exchanger is provided between solar thermal collector and the first water tank, first water pump is installed on First Heat Exchanger, the second heat exchanger is provided between underground pipe and the second water tank, second water pump is installed on the second heat exchanger, it is connected between first water tank and mixing tank by the first double-direction gearpump, it is connected between second water tank and mixing tank by the second double-direction gearpump, it is connected between solar thermal collector and underground pipe by third double-direction gearpump, third double-direction gearpump two sides are respectively arranged with a relief valve.The utility model can improve the deficiencies in the prior art, and system running pressure fluctuation is effectively reduced.
Description
Technical field
The utility model relates to field of renewable energy technology, especially a kind of solar energy ground-source heat pump system.
Background technique
The use of fossil energy of pollution with to(for) environment, people increasingly pay attention to the renewable resource of clean and environmental protection.
Wherein, solar energy and geothermal energy are two kinds of renewable resources for being relatively simple to utilize.Have in the prior art and much uses solar energy
Heat pump system with geothermal energy as the energy, this kind of heat pump system since there are two sets of energy resource supply channels, are easy at runtime
The fluctuation for leading to operating pressure causes heat transmission control inaccurate.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of solar energy ground-source heat pump systems, are able to solve existing skill
System running pressure fluctuation is effectively reduced in the deficiency of art.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
A kind of solar energy ground-source heat pump system, including solar thermal collector and underground pipe further include the first water tank, the second water
Case and mixing tank are provided with First Heat Exchanger between solar thermal collector and the first water tank, is equipped on First Heat Exchanger
One water pump is provided with the second heat exchanger between underground pipe and the second water tank, the second water pump, the first water are equipped on the second heat exchanger
It is connected between case and mixing tank by the first double-direction gearpump, passes through the second two-way gear between the second water tank and mixing tank
Pump connection, is connected between solar thermal collector and underground pipe by third double-direction gearpump, third double-direction gearpump two sides difference
It is provided with a relief valve.
Preferably, the relief valve includes valve body, it is fixed with annular partition in valve body, is plugged with valve on the inside of annular partition
Core is fixed with the gasket with annular partition selective exposure on spool, and body top is provided with top cover, and top cover is connected with compression
Air hose is equipped with pressure regulator valve on compressed air hose, is arranged jagged on annular partition, and body wall is connected with by spring body
Side plate, side plate interior sides wall are fixed with bolt, and bolt activity is plugged in notch, and side plate interior sides wall is fixed with wedge block, wedge block
Positioned at the top of bolt, gasket and wedge block sliding contact, body wall are provided with relief hole.
Preferably, the notch two sides are provided with sliding slot, bolt two sides are provided with the side that cooperation is mutually inserted with sliding slot
The wing.
A kind of control method of above-mentioned solar energy ground-source heat pump system, comprising the following steps:
A, the independent heat supply of solar energy,
The first water pump is opened, the first double-direction gearpump conveys hot water from the first water tank to mixing tank；When the second water tank
Water temperature and underground pipe water temperature difference be greater than 5 DEG C when, open the second water pump, when the water temperature of the second water tank and the water temperature of underground pipe
When difference is down within 3 DEG C, the second water pump is closed；
B, the independent heat supply in source or cooling supply,
The second water pump is opened, the second double-direction gearpump conveys hot water or cold water from the second water tank to mixing tank；
C, solar energy-ground source united heat supply,
Open simultaneously the first water pump and the second water pump, the first double-direction gearpump and the second double-direction gearpump respectively by hot water from
First water tank and the second water tank are conveyed to mixing tank；Third double-direction gearpump conveys hot water from high side to low side；
D, solar energy compensates ground source heat energy,
The first water pump is opened, the first double-direction gearpump conveys hot water from the first water tank to mixing tank, opens the second water
Pump, the second double-direction gearpump convey hot water from mixing tank to the second water tank；Third double-direction gearpump is by hot water from underground pipe
It is conveyed to solar thermal collector.
Preferably, the flow of PID control strategy adjustment third double-direction gearpump is used in normal state in step C,
When the differential water pressures in solar thermal collector and underground pipe are less than lower threshold, third double-direction gearpump is closed, when solar energy collection
When differential water pressures in hot device and underground pipe are greater than upper limit threshold, cancel the differential and integral element in PID control strategy, make third
Square directly proportional adjusting of the flow of double-direction gearpump and pressure difference.
Brought beneficial effect is by adopting the above technical scheme: the utility model passes through design pressure balance channel,
Using the control to third double-direction gearpump revolving speed, the adjustment for system pressure is realized.Relief valve is used to in system
Pressure oscillation is buffered.The vent pressure of relief valve is controlled by the air pressure of compressed air, with moving up for spool, valve
Core pushes side plate to move outward, to make bolt be separated from each other with notch, to realize pressure release passage area with system pressure
Power increases and increased purpose, plays effect that is quick, stablizing pressure release.
Detailed description of the invention
Fig. 1 is the structure chart of one specific embodiment of the utility model.
Fig. 2 is the structure chart of relief valve in one specific embodiment of the utility model.
Fig. 3 is notch and the mutually matched structure chart of bolt in one specific embodiment of the utility model.
In figure: 1, solar thermal collector；2, underground pipe；3, the first water tank；4, the second water tank；5, mixing tank；6, first
Heat exchanger；7, the first water pump；8, the second heat exchanger；9, the second water pump；10, the first double-direction gearpump；11, the second two-way gear
Pump；12, third double-direction gearpump；13, relief valve；14, valve body；15, annular partition；16, spool；17, gasket；18, top cover；
19, compressed air hose；20, pressure regulator valve；21, notch；22, spring body；23, side plate；24, bolt；25, wedge block；26, pressure release
Hole；27, sliding slot；28, flank；29, internal screw thread；30, bolt；31, spongy layer.
Specific embodiment
Referring to Fig.1-3, one specific embodiment of the utility model includes solar thermal collector 1 and underground pipe 2, further includes
First water tank 3, the second water tank 4 and mixing tank 5, are provided with First Heat Exchanger 6 between solar thermal collector 1 and the first water tank 3,
First water pump 7 is installed on First Heat Exchanger 6, the second heat exchanger 8, the second heat exchange are provided between underground pipe 2 and the second water tank 4
Second water pump 9 is installed on device 8, is connected between the first water tank 3 and mixing tank 5 by the first double-direction gearpump 10, the second water
It is connected between case 4 and mixing tank 5 by the second double-direction gearpump 11, passes through third between solar thermal collector 1 and underground pipe 2
Double-direction gearpump 12 is connected to, and 12 two sides of third double-direction gearpump are respectively arranged with a relief valve 13.Relief valve 13 includes valve body
14, be fixed with annular partition 15 in valve body 14, spool 16 be plugged on the inside of annular partition 15, be fixed on spool 16 with annular every
The gasket 17 of 15 selective exposure of plate is provided with top cover 18 at the top of valve body 14, and top cover 18 is connected with compressed air hose 19, compression
Pressure regulator valve 20 is installed on air hose 19, jagged 21 are arranged on annular partition 15,14 side wall of valve body is connected by spring body 22
There is side plate 23,23 inner sidewall of side plate is fixed with bolt 24, and 24 activity of bolt is plugged in notch 21, and 23 inner sidewall of side plate is fixed with
Wedge block 25, wedge block 25 are located at the top of bolt 24, gasket 17 and 25 sliding contact of wedge block, and 14 side wall of valve body is provided with
Relief hole 26.21 two sides of notch are provided with Weihe slot 27, and 24 two sides of bolt are provided with the flank 28 that cooperation is mutually inserted with sliding slot 27.
In addition, being provided with internal screw thread 29 in 26 inner wall of relief hole, bolt 30 is threadedly coupled with internal screw thread 29,30 top of bolt
It is provided with the spongy layer 31 mutually crimped with 26 top of relief hole.By can be manually rotated bolt 30, pressure release flow velocity can control, from
And it realizes and the two-stage of pressure release is controllably adjusted.
A kind of control method of above-mentioned solar energy ground-source heat pump system, comprising the following steps:
A, the independent heat supply of solar energy,
The first water pump 7 is opened, the first double-direction gearpump 10 conveys hot water from the first water tank 3 to mixing tank 5；When second
When the water temperature of water tank 4 and the water temperature difference of underground pipe 2 are greater than 5 DEG C, open the second water pump 9, when the second water tank 4 water temperature with it is buried
When the water temperature difference of pipe 2 is down within 3 DEG C, the second water pump 9 is closed；
B, the independent heat supply in source or cooling supply,
The second water pump 9 is opened, the second double-direction gearpump 11 conveys hot water or cold water from the second water tank 4 to mixing tank 5；
C, solar energy-ground source united heat supply,
The first water pump 7 and the second water pump 9 are opened simultaneously, the first double-direction gearpump 10 and the second double-direction gearpump 11 respectively will
Hot water is conveyed from the first water tank 3 and the second water tank 4 to mixing tank 5；Third double-direction gearpump 12 is by hot water from high pressure side to low
Press side conveying；
D, solar energy compensates ground source heat energy,
The first water pump 7 is opened, the first double-direction gearpump 10 conveys hot water from the first water tank 3 to mixing tank 5, opens the
Two water pumps 9, the second double-direction gearpump 11 convey hot water from mixing tank 5 to the second water tank 4；Third double-direction gearpump 12 will be warm
Water is conveyed from underground pipe 2 to solar thermal collector 1.
In step C, the flow of PID control strategy adjustment third double-direction gearpump 12 is used in normal state, works as the sun
When differential water pressures in energy heat collector 1 and underground pipe 2 are less than lower threshold, third double-direction gearpump 12 is closed, solar energy heating is worked as
When differential water pressures in device 1 and underground pipe 2 are greater than upper limit threshold, cancel the differential and integral element in PID control strategy, make third
Square directly proportional adjusting of the flow of double-direction gearpump 12 and pressure difference.
In step D, the first double-direction gearpump 10 is equal with the flow of the second double-direction gearpump 11, third double-direction gearpump 12
Flow and the first double-direction gearpump 10 discharge relation are as follows:
F1=kF2+ΔF
Wherein, F1For the flow of third double-direction gearpump 12, F2For the flow of the first double-direction gearpump 10, k is that ratio is normal
Number, Δ F are amendment increment.By the reversed feed adjustment of third double-direction gearpump 12, the pressure in system can be effectively reduced
Difference.
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (3)
1. a kind of solar energy ground-source heat pump system, including solar thermal collector (1) and underground pipe (2), it is characterised in that: further include
First water tank (3), the second water tank (4) and mixing tank (5) are provided between solar thermal collector (1) and the first water tank (3)
One heat exchanger (6) is equipped with the first water pump (7) on First Heat Exchanger (6), is provided between underground pipe (2) and the second water tank (4)
Second heat exchanger (8) is equipped with the second water pump (9) on the second heat exchanger (8), is led between the first water tank (3) and mixing tank (5)
The first double-direction gearpump (10) connection is crossed, between the second water tank (4) and mixing tank (5) even by the second double-direction gearpump (11)
It is logical, it is connected between solar thermal collector (1) and underground pipe (2) by third double-direction gearpump (12), third double-direction gearpump
(12) two sides are respectively arranged with a relief valve (13).
2. solar energy ground-source heat pump system according to claim 1, it is characterised in that: the relief valve (13) includes valve body
(14), it is fixed with annular partition (15) in valve body (14), is plugged with spool (16) on the inside of annular partition (15), it is solid on spool (16)
Surely have and be provided with top cover (18) with the gasket (17) of annular partition (15) selective exposure, valve body (14) top, top cover (18)
It is connected with compressed air hose (19), is equipped on compressed air hose (19) pressure regulator valve (20), is provided on annular partition (15) scarce
Mouth (21), valve body (14) side wall are connected with side plate (23) by spring body (22), and side plate (23) inner sidewall is fixed with bolt (24),
Bolt (24) activity is plugged in notch (21), and side plate (23) inner sidewall is fixed with wedge block (25), and wedge block (25), which is located at, to be inserted
The top of (24), gasket (17) and wedge block (25) sliding contact are sold, valve body (14) side wall is provided with relief hole (26).
3. solar energy ground-source heat pump system according to claim 2, it is characterised in that: notch (21) two sides are provided with
Sliding slot (27), bolt (24) two sides, which are provided with, is mutually inserted the flank (28) of cooperation with sliding slot (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606133.7U CN208520019U (en) | 2018-04-18 | 2018-04-18 | A kind of solar energy ground-source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606133.7U CN208520019U (en) | 2018-04-18 | 2018-04-18 | A kind of solar energy ground-source heat pump system |
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| Publication Number | Publication Date |
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| CN208520019U true CN208520019U (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820606133.7U Active CN208520019U (en) | 2018-04-18 | 2018-04-18 | A kind of solar energy ground-source heat pump system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413630A (en) * | 2018-04-18 | 2018-08-17 | 华北电力大学（保定） | A kind of solar energy ground-source heat pump system and its control method |
-
2018
- 2018-04-18 CN CN201820606133.7U patent/CN208520019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413630A (en) * | 2018-04-18 | 2018-08-17 | 华北电力大学（保定） | A kind of solar energy ground-source heat pump system and its control method |
| CN108413630B (en) * | 2018-04-18 | 2024-05-03 | 华北电力大学（保定） | Solar ground source heat pump system and control method thereof |
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