CN105091438A - Constant-temperature control system for domestic hot water of total-heat recovery ground source heat pump air conditioner - Google Patents

Constant-temperature control system for domestic hot water of total-heat recovery ground source heat pump air conditioner Download PDF

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Publication number
CN105091438A
CN105091438A CN201510613428.8A CN201510613428A CN105091438A CN 105091438 A CN105091438 A CN 105091438A CN 201510613428 A CN201510613428 A CN 201510613428A CN 105091438 A CN105091438 A CN 105091438A
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China
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type heat
ground source
heat pump
import
pump
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CN201510613428.8A
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CN105091438B (en
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熊健
方辉旺
黄天梁
石磊
谭廷乐
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New Energy Technology (shanghai) Co Ltd
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New Energy Technology (shanghai) 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Abstract

The invention relates to a constant-temperature control system for domestic hot water of a total-heat recovery ground source heat pump air conditioner. The constant-temperature control system comprises the total-heat recovery ground source heat pump air conditioner, wherein the total-heat recovery ground source heat pump air conditioner comprises a domestic hot water tank, a plate heat exchanger, a heat pump unit with heat recovery, a heat pump unit without heat recovery, an air conditioning terminal and a ground source side system; the plate heat exchanger comprises two inlets and two outlets; the heat pump unit with heat recovery comprises three inlets and three outlets; the heat pump unit without heat recovery comprises two inlets and two outlets; and the constant-temperature control system comprises a control box, a temperature transducer, a plate exchange side circulating pump, a heat recovery circulating pump, first to fourth ground source side circulating pumps and an electric switch valve. The constant-temperature control system can guarantee the domestic hot water to reach a needed temperature requirement when guaranteeing stable operation of an air conditioning system.

Description

The thermostatic control system of a kind of total heat recovery geothermal heat pump air-conditioner domestic hot-water
Technical field
The present invention relates to the thermostatic control system of a kind of total heat recovery geothermal heat pump air-conditioner domestic hot-water, be particularly suitable for hotel, hotel, hospital etc. comparatively large to air-conditioning, hot water demand, domestic hot-water's temperature is had certain requirements again place simultaneously.
Background technology
Domestic hot-water is huge at the consumption of some specific occasions, and because personnel are flowed etc. at any time reason, cause its hot-water consumption to be also change in good time.Some particular place, as hotel, hotel, hospital etc., also there are certain requirements the temperature of domestic hot-water simultaneously.So just the thermic load of domestic hot-water is caused to be real-time change.The geo-source heat-pump air conditioner group of the band total heat recovery of current domestic employing, although hot water can be prepared, due to the real-time change of thermic load, the output of domestic hot-water can only be ensured, and can not assure feed water temperature, just can not meet some has requirement occasion to domestic hot-water's temperature.Domestic place domestic hot-water being had to temperature requirement, all still adopts the heat-supplying modes such as traditional boiler usually now, and two abandon the mode adopting total heat recovery, cause very large energy waste.
Summary of the invention
Object of the present invention, exactly in order to solve above-mentioned prior art Problems existing, and the thermostatic control system of a kind of total heat recovery geothermal heat pump air-conditioner domestic hot-water is provided, be particularly suitable for hotel, hotel, hospital etc. larger to air-conditioning, hot water demand, domestic hot-water's temperature is had certain requirements again place simultaneously, by the auto-changeover control of domestic hot-water side with ground source, can ensure that hot water temperature reaches setting value, ensure again the stable operation of a whole set of air-conditioning system simultaneously; So both have employed total heat recovery mode and prepare hot water, saved the energy, can ensure that again domestic hot-water's temperature reaches user's requirement simultaneously; Whole system is all automatically run and is switched, and reduces cost of labor, guarantees the operation that system is more efficient and more stable.
The technical scheme realizing above-mentioned purpose is: the thermostatic control system of a kind of total heat recovery geothermal heat pump air-conditioner domestic hot-water, described total heat recovery geothermal heat pump air-conditioner comprises domestic hot-water's water tank, plate type heat exchanger, band recovery type heat pump unit, be not with recovery type heat pump unit, air conditioning terminal and ground source side system, described plate type heat exchanger comprises two imports and two outlets, described band recovery type heat pump unit comprises three imports and three outlets, described recovery type heat pump unit of not being with comprises two imports and two outlets, described thermostatic control system comprises control cabinet, temperature transmitter, plate side change circulating pump, heat recovery cycle pump, first ~ four ground source circulating pump and electric switching valve, wherein:
Described temperature transmitter is arranged on described domestic hot-water's water tank;
The outlet of described domestic hot-water's water tank is connected with an import of described plate type heat exchanger by plate side change circulating pump, and another import of described plate type heat exchanger exports be connected with one of described band recovery type heat pump unit;
An outlet of described plate type heat exchanger is connected with the import of described domestic hot-water's water tank, and another outlet of described plate type heat exchanger is connected by the import of described heat recovery cycle pump with described band recovery type heat pump unit;
Described band recovery type heat pump unit another outlet connect with a described outlet not with recovery type heat pump unit after be connected with the import of described air conditioning terminal;
Be connected with the outlet of described air conditioning terminal after another import of described band recovery type heat pump unit connects with a described import not with recovery type heat pump unit;
Described first ground source circulating pump and the second ground source circulating pump are connected in parallel; Described 3rd ground source circulating pump and the 4th ground source circulating pump are connected in parallel;
The connecting to holding of last import of described band recovery type heat pump unit and described first ground source circulation delivery side of pump and the second ground source circulation delivery side of pump is connected;
Last outlet of described band recovery type heat pump unit with described not with another of recovery type heat pump unit export connect after be connected with the import of described ground source side system;
Hold the connecting of connect end and the import of described 3rd ground source circulating pump and the import of the 4th ground source circulating pump of the import of described first ground source circulating pump and the import of the second ground source circulating pump after being connected and be connected with the outlet of described ground source side system;
Described 3rd ground source circulation delivery side of pump is connected with described another import not with recovery type heat pump unit with the end that connects of the 4th ground source circulation delivery side of pump;
Described control cabinet is electrically connected with described temperature transmitter, plate side change circulating pump, heat recovery cycle pump, the first ground source circulating pump, the second ground source circulating pump and electric switching valve respectively.
The thermostatic control system of above-mentioned a kind of total heat recovery geothermal heat pump air-conditioner domestic hot-water, wherein:
The first Pressure gauge is provided with between described plate type heat exchanger and plate side change circulating pump;
The second Pressure gauge is provided with between described plate type heat exchanger and domestic hot-water's water tank;
The 3rd Pressure gauge is provided with between described plate type heat exchanger and heat recovery cycle pump;
The 4th Pressure gauge is provided with between described plate type heat exchanger and band recovery type heat pump unit.
The thermostatic control system of total heat recovery geothermal heat pump air-conditioner domestic hot-water of the present invention, when ground source water and domestic hot-water enter simultaneously unit can not meet the temperature requirement of domestic hot-water, orderly switching, the start and stop of ground source, domestic hot-water side corresponding motor-driven valve, circulating pump etc. are controlled by domestic hot-water's temperature, while guarantee domestic hot-water temperature, this control system can ensure again the operation of the normal operation of other units in parallel with this air-conditioner set and the stability and high efficiency of whole air-conditioning system.Be specially adapted to multiple stage earth source heat pump unit operation, wherein part of generating units band heat recovery function, and domestic hot-water there is the system of certain temperature requirement, while the stable operation of guarantee air-conditioning system, the temperature requirement that domestic hot-water reaches required can be ensured again.Be particularly suitable for hotel, hotel, hospital etc. comparatively large to air-conditioning, hot water demand, domestic hot-water's temperature had certain requirements again place simultaneously.Compared with prior art, beneficial effect is embodied in:
(1) the present invention is suitable for total heat recovery geothermal heat pump air-conditioning system domestic hot-water's temperature being had to requirement, can meet domestic hot-water's temperature requirement, realize automatic operation simultaneously, reduces operating cost, saves air-conditioning, hot water expenses.
(2) the present invention can improve operating efficiency, reduce human users's cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the thermostatic control system of total heat recovery geothermal heat pump air-conditioner domestic hot-water of the present invention.
Detailed description of the invention
In order to make those skilled in the art can understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, embodiments of the invention, total heat recovery geothermal heat pump air-conditioner comprises domestic hot-water's water tank 101, plate type heat exchanger 102, band recovery type heat pump unit 103, is not with recovery type heat pump unit 104, air conditioning terminal 105 and ground source side system 106, plate type heat exchanger 102 comprises two imports i, k and two outlets m, n, band recovery type heat pump unit comprises three imports a, c, f and three outlets b, d, e, is not with recovery type heat pump unit to comprise two imports a', c' and two outlets b', d'.
A total heat recovery geothermal heat pump air-conditioner domestic hot-water's thermostatic control system, comprises control cabinet 9, temperature transmitter 1, plate side change circulating pump 2, heat recovery cycle pump the 3, first ~ four ground source circulating pump 5 ~ 8 and electric switching valve 4.
Temperature transmitter 1 is arranged on domestic hot-water's water tank 101, is used for detecting the temperature of domestic hot-water in domestic hot-water water tank 101.The outlet of domestic hot-water's water tank 101 is connected with an import i of plate type heat exchanger 102 by plate side change circulating pump 2, and one of another import k of plate type heat exchanger 102 and band recovery type heat pump unit 103 exports b and is connected.An outlet m of plate type heat exchanger 102 is connected with the import of domestic hot-water's water tank 101, and another outlet n of plate type heat exchanger 102 is connected by the import a of heat recovery cycle pump 3 with band recovery type heat pump unit 103.
Another outlet e with recovery type heat pump unit 103 exports after b' connects with not with recovery type heat pump unit 104 and is connected with the import of air conditioning terminal 105; Another import f with recovery type heat pump unit 103 is connected with the outlet of air conditioning terminal 105 after connecting with an import a' not with recovery type heat pump unit 104.
First ground source circulating pump 5 and the second ground source circulating pump 6 are connected in parallel; 3rd ground source circulating pump 7 and the 4th ground source circulating pump 8 are connected in parallel.
Last import c with recovery type heat pump unit 103 and the outlet of the first ground source circulating pump 5 with the connecting of outlet of the second ground source circulating pump 6 hold g to be connected; Last outlet d with recovery type heat pump unit 103 is connected with the import of ground source side system 106 with not exporting after d' connects with another of recovery type heat pump unit 104; Be connected with the outlet of ground source side system 106 after the connecting of connect end h and the import of the 3rd ground source circulating pump 7 and the import of the 4th ground source circulating pump 8 of the import of the first ground source circulating pump 5 and the import of the second ground source circulating pump 6 holding h' to be connected; The outlet of the 3rd ground source circulating pump 7 is connected with another import c' not with recovery type heat pump unit 104 with the end g' that connects of the outlet of the 4th ground source circulating pump 8.
Control cabinet 9 is electrically connected with temperature transmitter 1, plate side change circulating pump 2, source circulating pump 5, second ground, heat recovery cycle pump 3, first ground source circulating pump 6 and electric switching valve 4 respectively.
The first Pressure gauge 11 is provided with between plate type heat exchanger 102 and plate side change circulating pump 2; The second Pressure gauge 12 is provided with between plate type heat exchanger 102 and domestic hot-water's water tank 101; The 3rd Pressure gauge 13 is provided with between plate type heat exchanger 102 and heat recovery cycle pump 3; The 4th Pressure gauge 14 is provided with between plate type heat exchanger 102 and band recovery type heat pump unit 103.
The thermostatic control system of total heat recovery geothermal heat pump air-conditioner domestic hot-water of the present invention, operation principle is: band recovery type heat earth source heat pump unit 103 is opened, electric switching valve 4 is opened simultaneously, time delay 10s, start the first ground source circulating pump 5 and the second ground source circulating pump 6, now control cabinet 9 implements control strategy by the temperature data of detected temperatures transmitter 1:
When the hot water temperature in domestic hot-water's water tank 101 is lower than minimum setting value, control cabinet 9 opens recuperation of heat side circulating pump 3 and plate side change circulating pump 2, time delay 10s, closes the first ground source circulating pump 5 and the second ground source circulating pump 6, time delay 10s, closes electric switching valve 4;
When the hot water temperature in domestic hot-water's water tank 101 is higher than the highest setting value, opens electric switching valve 4, time delay 10s, open the first ground source circulating pump 5 and the second ground source circulating pump 6, time delay 10s, close recuperation of heat side circulating pump 3 and plate side change circulating pump 2.
In sum, the thermostatic control system of total heat recovery geothermal heat pump air-conditioner domestic hot-water of the present invention, controls orderly switching, the start and stop of ground source, domestic hot-water side corresponding motor-driven valve, circulating pump etc. by domestic hot-water's temperature.While guarantee domestic hot-water temperature, this control system can ensure again the operation of the normal operation of other units in parallel with this air-conditioner set and the stability and high efficiency of whole air-conditioning system.Be specially adapted to multiple stage earth source heat pump unit operation, wherein part of generating units band heat recovery function, and domestic hot-water there is the system of certain temperature requirement.While the stable operation of guarantee air-conditioning system, the temperature requirement that domestic hot-water reaches required can be ensured again.Be particularly suitable for hotel, hotel, hospital etc. comparatively large to air-conditioning, hot water demand, domestic hot-water's temperature had certain requirements again place simultaneously.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.

Claims (2)

1. the thermostatic control system of a total heat recovery geothermal heat pump air-conditioner domestic hot-water, described total heat recovery geothermal heat pump air-conditioner comprises domestic hot-water's water tank, plate type heat exchanger, band recovery type heat pump unit, be not with recovery type heat pump unit, air conditioning terminal and ground source side system, described plate type heat exchanger comprises two imports and two outlets, described band recovery type heat pump unit comprises three imports and three outlets, described recovery type heat pump unit of not being with comprises two imports and two outlets, it is characterized in that, described thermostatic control system comprises control cabinet, temperature transmitter, plate side change circulating pump, heat recovery cycle pump, first ~ four ground source circulating pump and electric switching valve, wherein:
Described temperature transmitter is arranged on described domestic hot-water's water tank;
The outlet of described domestic hot-water's water tank is connected with an import of described plate type heat exchanger by plate side change circulating pump, and another import of described plate type heat exchanger exports be connected with one of described band recovery type heat pump unit;
An outlet of described plate type heat exchanger is connected with the import of described domestic hot-water's water tank, and another outlet of described plate type heat exchanger is connected by the import of described heat recovery cycle pump with described band recovery type heat pump unit;
Described band recovery type heat pump unit another outlet connect with a described outlet not with recovery type heat pump unit after be connected with the import of described air conditioning terminal;
Be connected with the outlet of described air conditioning terminal after another import of described band recovery type heat pump unit connects with a described import not with recovery type heat pump unit;
Described first ground source circulating pump and the second ground source circulating pump are connected in parallel; Described 3rd ground source circulating pump and the 4th ground source circulating pump are connected in parallel;
The connecting to holding of last import of described band recovery type heat pump unit and described first ground source circulation delivery side of pump and the second ground source circulation delivery side of pump is connected;
Last outlet of described band recovery type heat pump unit with described not with another of recovery type heat pump unit export connect after be connected with the import of described ground source side system;
Hold the connecting of connect end and the import of described 3rd ground source circulating pump and the import of the 4th ground source circulating pump of the import of described first ground source circulating pump and the import of the second ground source circulating pump after being connected and be connected with the outlet of described ground source side system;
Described 3rd ground source circulation delivery side of pump is connected with described another import not with recovery type heat pump unit with the end that connects of the 4th ground source circulation delivery side of pump;
Described control cabinet is electrically connected with described temperature transmitter, plate side change circulating pump, heat recovery cycle pump, the first ground source circulating pump, the second ground source circulating pump and electric switching valve respectively.
2. the thermostatic control system of a kind of total heat recovery geothermal heat pump air-conditioner domestic hot-water according to claim 1, is characterized in that, be provided with the first Pressure gauge between described plate type heat exchanger and plate side change circulating pump;
The second Pressure gauge is provided with between described plate type heat exchanger and domestic hot-water's water tank;
The 3rd Pressure gauge is provided with between described plate type heat exchanger and heat recovery cycle pump;
The 4th Pressure gauge is provided with between described plate type heat exchanger and band recovery type heat pump unit.
CN201510613428.8A 2015-09-24 2015-09-24 A kind of thermostatic control system of total heat recovery geothermal heat pump air-conditioner domestic hot-water Active CN105091438B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201081367Y (en) * 2007-08-01 2008-07-02 中原工学院 Heat-recovery geothermal heat pump
CN102425883A (en) * 2011-11-10 2012-04-25 安徽日源环保能源科技有限公司 Energy-saving system using heat recovery type water source heat pump unit and control method for energy-saving system
CN203413873U (en) * 2013-07-12 2014-01-29 中信建筑设计研究总院有限公司 Compound type heating and cooling system with ground source heat pump, water energy storage and heat recovery
CN103574796A (en) * 2012-07-25 2014-02-12 中国二十冶集团有限公司 Heat recovery composite energy system for hospital buildings
KR20140050825A (en) * 2012-10-22 2014-04-30 김영식 Heat pump electric boiler for air conditioning and heating system having automatic defrosting function and method for defrosting
CN203704192U (en) * 2014-01-26 2014-07-09 广东省建筑科学研究院 Air conditioning water system of hospital building
CN104613674A (en) * 2014-12-09 2015-05-13 中铁建设集团有限公司 Soil source fuel gas heat pump supplying heat, cool and hot water system
CN204574594U (en) * 2015-04-23 2015-08-19 西安开元绿色能源科技发展有限公司 Heat pump main frame total heat recovery system
CN205037648U (en) * 2015-09-24 2016-02-17 宝莲华新能源技术(上海)有限公司 Hydrothermal constant temperature control system of full heat recovery ground source heat pump air condition life

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201081367Y (en) * 2007-08-01 2008-07-02 中原工学院 Heat-recovery geothermal heat pump
CN102425883A (en) * 2011-11-10 2012-04-25 安徽日源环保能源科技有限公司 Energy-saving system using heat recovery type water source heat pump unit and control method for energy-saving system
CN103574796A (en) * 2012-07-25 2014-02-12 中国二十冶集团有限公司 Heat recovery composite energy system for hospital buildings
KR20140050825A (en) * 2012-10-22 2014-04-30 김영식 Heat pump electric boiler for air conditioning and heating system having automatic defrosting function and method for defrosting
CN203413873U (en) * 2013-07-12 2014-01-29 中信建筑设计研究总院有限公司 Compound type heating and cooling system with ground source heat pump, water energy storage and heat recovery
CN203704192U (en) * 2014-01-26 2014-07-09 广东省建筑科学研究院 Air conditioning water system of hospital building
CN104613674A (en) * 2014-12-09 2015-05-13 中铁建设集团有限公司 Soil source fuel gas heat pump supplying heat, cool and hot water system
CN204574594U (en) * 2015-04-23 2015-08-19 西安开元绿色能源科技发展有限公司 Heat pump main frame total heat recovery system
CN205037648U (en) * 2015-09-24 2016-02-17 宝莲华新能源技术(上海)有限公司 Hydrothermal constant temperature control system of full heat recovery ground source heat pump air condition life

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