CN1786592A - Central solar energy water heating system capable of using various heat collectors - Google Patents

Central solar energy water heating system capable of using various heat collectors Download PDF

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Publication number
CN1786592A
CN1786592A CNA2005100620306A CN200510062030A CN1786592A CN 1786592 A CN1786592 A CN 1786592A CN A2005100620306 A CNA2005100620306 A CN A2005100620306A CN 200510062030 A CN200510062030 A CN 200510062030A CN 1786592 A CN1786592 A CN 1786592A
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China
Prior art keywords
water
circulation
solar
attemperater
water supply
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CNA2005100620306A
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Chinese (zh)
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CN100371655C (en
Inventor
张建高
傅莉霞
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Individual
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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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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
    • Y02E10/44—Heat exchange systems

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  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

The invention relates to center solar water heating system used in multi heat collection device. Its features are the system is set cycling thermal insulation small water tank; solar collector can be adopted any one of the flat, the heat pipe vacuum tube, and the vacuum tube solar collector. The invention has the advantages that the cycling thermal insulation small water tank is set to make the center water heating system realize constant temperature discharge water, fully utilize solar energy to ensure that the proper hot water can be supplied for twenty four hours; and its energy saving efficiency is high; running is safe and reliable.

Description

The central solar hot water system that multiple heat collector is general
Technical field
The present invention relates to solar energy utilization technique, particularly the general central solar hot water system of one kind of multiple heat collectors.
Background technology
Present central solar hot water system's heat collector has vacuum tube collector, flat plate collector, heat pipe vacuum tube collector etc., and its method of operation has constant temperature to discharge water and circulation heats, and in use has following problem:
1) solar hot water system of the vacuum tube collector central authorities method of operation that can adopt constant temperature to discharge water and circulate and heat; And the solar hot water system of flat plate collector, heat pipe vacuum tube collector central authorities can only adopt circulation to heat, and should not adopt the constant temperature method of operation that discharges water; 2) constant temperature discharge water be not tube solar what, all can produce the hot water that reaches design temperature, when solar energy is not enough, can preferentially use the hot water that reaches design temperature; And circulation heats, and can not preferentially utilize solar energy; 3) constant temperature discharges water in servicely in system, can use hot water, reaches the requirement of not timing hot-water supply; And circulation heats the regularly hot-water supply in service in system, if desired during the not timing hot-water supply, need be to not reaching the hot water of serviceability temperature, and can use after adopting auxiliary heating; 4) vacuum tube collector adopts constant temperature to discharge water, and because of eject the hot water in the heat collector with cold water, the hot and cold water temperature difference is big, and vacuum tube easily breaks; When having air in the connector, may cause that heat collector connector inner bag shrinks.
Summary of the invention
The objective of the invention is in order to overcome the deficiency that above-mentioned central solar hot water system exists, propose a kind of by setting up the little water tank of circulation insulation, circulation heated subsystem in solar thermal collector and the little water tank of circulation insulation formed one, on this basis, again this system is designed to the constant temperature operation that discharges water.
The central solar hot water system that one kind of multiple heat collectors are general, comprise solar thermal collector, attemperater, control valve, system's controller, connecting pipe is characterized in that: be provided with circulation little water tank 3 of insulation and water supply attemperater 4, the water inlet a of the little water tank 3 of circulation insulation connects water supply pipe by last water control valve 2; The output of solar thermal collector 1 is communicated with the little water tank of circulation insulation 3 tops by thermal-arrest circulation pipe J1, the delivery port b of the little water tank 3 of circulation insulation is by thermal-arrest circulation pipe J2, thermal-arrest circulating pump 6, thermal-arrest circulation pipe J3 connects the input of solar thermal collector 1, water supply attemperater 4 bottom loop exit d are communicated with thermal-arrest circulation pipe J2 by heat accumulation control valve 5, the little water tank of circulation insulation 3 tops are communicated with water supply attemperater 4 tops, adopt the water in the auxiliary heater 10 heating water supply attemperaters 4, hot water is by the delivery port e of water supply attemperater 4 bottoms, water supply circulating pump 7, the hot water mouth of constant-temperature water mixing valve 8 returns in the water supply attemperater 4 through return pipe H to water spot 9 hot-water supplies the time, and water supply pipe is received the cold water outlet of constant-temperature water mixing valve 8; The little water tank 3 of circulation insulation is provided with water level, cooling-water temperature sensor and passage, and water supply attemperater 4 is provided with water level, cooling-water temperature sensor and passage, and solar thermal collector 1 is provided with cooling-water temperature sensor; Solar thermal collector 1 is selected any in flat-plate solar collector, heat-pipe vacuum-tube solar heat collector, the vacuum tube solar heating element for use; The residing height of the little water tank 3 outlet c of circulation insulation is higher than the height at water supply attemperater 4 tops, and the water capacity of the little water tank 3 of circulation insulation is the 300-1000 liter; The work of last water control valve 2, thermal-arrest circulating pump 6, heat accumulation control valve 5, water supply circulating pump 7, auxiliary heater 10 and water level, cooling-water temperature sensor is controlled by system's controller.
The control mode of controller has:
Circulation heated system in solar thermal collector 1, the little water tank 3 of circulation insulation, thermal-arrest circulating pump 6, thermal-arrest circulation pipe J3 formed one.Be the constant temperature operation that discharges water again with this default, i.e. when the water temperatures in the little water tank 3 of circulation insulation were higher than design temperature, last water control valve 2 was opened; The hot water on the little water tank of circulation insulation 3 tops is headed into water supply attemperater 4 by thermal-arrest outlet pipe c1, and when the little water tank water temperature of circulation insulation was lower than design temperature, last water control valve 2 was closed.
Water temperature in the little water tank 3 of circulation insulation is higher than design temperature, and when the hot water in the heat supply attemperater 4 reaches the upper limit (UL) water level, last water control valve is closed, heat accumulation control valve 5 is opened, and the little water tank 3 of circulation insulation, water supply attemperater 4, solar thermal collector 1 form outer circulation and heat by thermal-arrest outlet pipe c1, heat accumulation control valve 5, heat accumulation circulation pipe c2, thermal-arrest circulating pump 6.
When the solar energy deficiency, when the water in the water supply attemperater 4 are lower than minimum designated water level, last water control valve 2 is opened, give 4 moisturizings of water supply attemperater, when reaching designated water level, last water control valve 2 is closed, start auxiliary heater 10, as the fuel-firing gas-firing water heater, or electric heater, assist concurrent heating to heat.
Above duty is by system's controller control.
With prior art relatively, advantage of the present invention is: set up a little water tank of circulation insulation, make based on flat-plate solar collector, or heat-pipe vacuum-tube solar heat collector, or the central solar hot water system of vacuum tube solar heating element realizes that constant temperature discharges water, and is preferential and make full use of solar energy, energy-saving efficiency height, guarantee to provide in 24 hours temperature suitable hot water, and safe and reliable to operation.
Description of drawings
Fig. 1 is the general central solar hot water system's structural representations of one kind of multiple heat collectors.
The specific embodiment
Embodiment 1:
The central solar hot water system that one kind of multiple heat collectors are general, comprise solar thermal collector, attemperater, control valve, system's controller, connecting pipe is characterized in that: be provided with circulation little water tank 3 of insulation and water supply attemperater 4, the water inlet a of the little water tank 3 of circulation insulation connects water supply pipe by last water control valve 2; The output of solar thermal collector 1 is communicated with the little water tank of circulation insulation 3 tops by thermal-arrest circulation pipe J1, and the delivery port b of the little water tank 3 of circulation insulation connects the input of solar thermal collector 1 by thermal-arrest circulation pipe J2, thermal-arrest circulating pump 6, thermal-arrest circulation pipe J3; Water supply attemperater 4 bottom loop exit d are communicated with thermal-arrest circulation pipe J2 by heat accumulation control valve 5; The little water tank of circulation insulation 3 tops are communicated with water supply attemperater 4 tops; Adopt the water in the auxiliary heater 10 heating water supply attemperaters 4, the hot water mouth of the delivery port e of hot water by water supply attemperater 4 bottoms, water supply circulating pump 7, constant-temperature water mixing valve 8 returns in the water supply attemperater 4 through return pipe H to water spot 9 hot-water supplies the time, and water supply pipe is received the cold water outlet of constant-temperature water mixing valve 8; The little water tank 3 of circulation insulation is provided with water level, cooling-water temperature sensor and passage, and water supply attemperater 4 is provided with water level, cooling-water temperature sensor and passage, and solar thermal collector 1 is provided with cooling-water temperature sensor; Solar thermal collector 1 is selected any in flat-plate solar collector, heat-pipe vacuum-tube solar heat collector, the vacuum tube solar heating element for use; The residing height of the little water tank 3 outlet c of circulation insulation is higher than the height at water supply attemperater 4 tops, and wherein solar thermal collector 1 adopts flat-plate solar collector, and little water tank 3 water capacities of circulation insulation are 500 liters, and water supply attemperater water capacity 4 is 8000 liters.
Embodiment 2:
The central solar hot water system that one kind of multiple heat collectors are general, solar thermal collector 1 adopts the heat-pipe vacuum-tube solar heat collector, and little water tank 3 water capacities of circulation insulation are 600 liters, and water supply attemperater 4 water capacities are 10000 liters, and all the other are identical with embodiment 1.
Embodiment 3:
The central solar hot water system that one kind of multiple heat collectors are general, solar thermal collector 1 adopts vacuum tube solar heating element, and the little water tank water capacity of circulation insulation is 1000 liters, and water supply attemperater 4 water capacities are 20000 liters, and all the other are identical with embodiment 1.

Claims (5)

1.-plant the general central solar hot water system of multiple heat collector, comprise solar thermal collector, attemperater, control valve, system's controller, connecting pipe, it is characterized in that: be provided with circulation insulation little water tank (3) and water supply attemperater (4), the water inlet (a) of the circulation little water tank of insulation (3) connects water supply pipe by last water control valve (2), the output of solar thermal collector (1) is communicated with circulation insulation little water tank (3) top by thermal-arrest circulation pipe (J1), the delivery port (b) of the circulation little water tank of insulation (3) is by thermal-arrest circulation pipe (J2), thermal-arrest circulating pump (6), thermal-arrest circulation pipe (J3) connects the input of solar thermal collector (1), and water supply attemperater (4) bottom loop exit (d) is communicated with thermal-arrest circulation pipe (J2) by heat accumulation control valve (5); Circulation insulation little water tank (3) top is communicated with water supply attemperater (4) top, adopt the water in auxiliary heater (10) the heating water supply attemperater (4), the hot water mouth of the delivery port (e) of hot water by water supply attemperater (4) bottom, water supply circulating pump (7), constant-temperature water mixing valve (8) returns in the water supply attemperater (4) through return pipe (H) to water spot (9) hot-water supply the time, and water supply pipe is received the cold water outlet of constant-temperature water mixing valve (8); The circulation little water tank of insulation (3) is provided with water level, cooling-water temperature sensor and passage, and water supply attemperater (4) is provided with water level, cooling-water temperature sensor and passage, and solar thermal collector (1) is provided with cooling-water temperature sensor.
2. according to right 1 described central solar hot water system, it is characterized in that: solar thermal collector (1) is selected any in flat-plate solar collector, heat-pipe vacuum-tube solar heat collector, the vacuum tube solar heating element for use.
3. according to right 1 described central solar hot water system, it is characterized in that: the circulation little water tank of insulation (3) outlet (c) residing height is higher than the height at water supply attemperater (4) top.
4. according to right 1 described central solar hot water system, it is characterized in that: the water capacity of the circulation little water tank of insulation (3) is the 300-1000 liter.
5. according to right 1 described central solar hot water system, it is characterized in that: the work of going up water control valve (2), thermal-arrest circulating pump (6), heat accumulation control valve (5), water supply circulating pump (7), auxiliary heater (10) and water level, cooling-water temperature sensor is controlled by system's controller.
CNB2005100620306A 2005-12-16 2005-12-16 Central solar energy water heating system capable of using various heat collectors Expired - Fee Related CN100371655C (en)

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CN1786592A true CN1786592A (en) 2006-06-14
CN100371655C CN100371655C (en) 2008-02-27

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949599A (en) * 2010-09-11 2011-01-19 广东红日太阳能有限公司 Solar water heating system energy-saving water return device for enhancing solar energy utilization rate
CN102235715A (en) * 2010-05-07 2011-11-09 上海海洋大学 Solar water heating system with double water tanks
CN102305430A (en) * 2011-09-20 2012-01-04 海南师范大学 Novel solar water heating system suitable for use in tropical area
CN103216879A (en) * 2013-04-02 2013-07-24 中铁隧道集团有限公司 Heating and antifreezing system of tunnel
CN105333626A (en) * 2015-12-08 2016-02-17 杨敏杰 Safe high-efficiency solar water heating system
CN108626891A (en) * 2018-03-30 2018-10-09 海宁太博热水器科技有限公司 A kind of pressure-bearing type solar heat Hydraulic Projects

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101666565B (en) * 2009-09-28 2012-08-08 中国南方航空工业(集团)有限公司 Thermostating water device

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US4191172A (en) * 1978-05-19 1980-03-04 General Motors Corporation Thermostatic mixer valve
US5103802A (en) * 1986-06-06 1992-04-14 Thomason Harry E Thermosyphon heat-storage and backup heat apparatus
CN2154994Y (en) * 1993-04-17 1994-02-02 方俊杰 Compound solar water heater
US5823177A (en) * 1996-01-16 1998-10-20 Whitehead; John C. Pumpless solar water heater with isolated pressurized storage
DE19955976A1 (en) * 1999-04-23 2000-10-26 Heinz Grueterich Method for optimizing the use of energy with hot water storage tank with solar and primary heating systems
JP2001004230A (en) * 1999-06-25 2001-01-12 Noritz Corp Solar heat utilizing thermal storage apparatus
CN2469374Y (en) * 2001-02-27 2002-01-02 王佐峰 Heating apparatus with multiple heat source
CN2729591Y (en) * 2004-09-06 2005-09-28 韩克水 Circulatable solar water heater

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102235715A (en) * 2010-05-07 2011-11-09 上海海洋大学 Solar water heating system with double water tanks
CN101949599A (en) * 2010-09-11 2011-01-19 广东红日太阳能有限公司 Solar water heating system energy-saving water return device for enhancing solar energy utilization rate
CN101949599B (en) * 2010-09-11 2012-02-29 广东红日太阳能有限公司 Solar water heating system energy-saving water return device for enhancing solar energy utilization rate
CN102305430A (en) * 2011-09-20 2012-01-04 海南师范大学 Novel solar water heating system suitable for use in tropical area
WO2013040731A1 (en) * 2011-09-20 2013-03-28 海南师范大学 Solar water heating system for tropical region
CN103216879A (en) * 2013-04-02 2013-07-24 中铁隧道集团有限公司 Heating and antifreezing system of tunnel
CN103216879B (en) * 2013-04-02 2015-08-12 中铁隧道集团有限公司 A kind of tunnel heat supply winterization system
CN105333626A (en) * 2015-12-08 2016-02-17 杨敏杰 Safe high-efficiency solar water heating system
CN108626891A (en) * 2018-03-30 2018-10-09 海宁太博热水器科技有限公司 A kind of pressure-bearing type solar heat Hydraulic Projects

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