CN103673058A - Concentration heat collection scattering heat storage solar water heating system inversion-preventing heating device and method - Google Patents
Concentration heat collection scattering heat storage solar water heating system inversion-preventing heating device and method Download PDFInfo
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- CN103673058A CN103673058A CN201310591452.7A CN201310591452A CN103673058A CN 103673058 A CN103673058 A CN 103673058A CN 201310591452 A CN201310591452 A CN 201310591452A CN 103673058 A CN103673058 A CN 103673058A
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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
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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
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Abstract
The invention relates to a solar water heating system inversion-preventing heating device which is composed of a public heating medium system and a user heating medium system. The public heating medium system is in circulation communication with the user heating medium system. The heating device is characterized in that a first temperature sensor is arranged on a solar heat exchange water tank, a fourth temperature sensor and a second solenoid valve are arranged at the tail end, connected with the user heating medium circulation pipeline, of the public heating medium circulation pipeline, a third temperature sensor is arranged on a user heat exchange water tank, and a second temperature sensor and a first solenoid valve are arranged at the tail end, connected with the public heating medium circulation pipeline, of the user heating medium circulation pipeline. The invention further discloses the inversion-preventing heating device and an inversion-preventing heating method. The device and method realize dry pipe circulation of the public heating medium circulation pipeline, and the inside of the public heating medium circulation pipeline is maintained at high temperature, so that the retention volume of cold water in the public heating medium circulation pipeline is reduced, and heat exchange efficiency is greatly improved. Meanwhile, the occurrence of inversion heating conditions is effectively avoided, and engineering designs are optimized.
Description
Technical field
The invention belongs to engineering construction technical field of solar utilization technique, particularly a kind of concentrated thermal-arrest disperses the anti-reverse heater of heat-accumulation solar hot-water heating system and method.
Background technology
Concentrate thermal-arrest-minute family heat-accumulation solar hot-water heating system, that heat collector is concentrated and placed at building roof, the a set of relatively independent heat storage water tank of each household configuration, the built-in heat-exchanger rig of heat storage water tank and electric auxiliary heating device, shared device is concentrated and is placed on equipment room or roof.The heat energy that solar thermal collector is collected is delivered to heat-exchanger rig in indoor heat storage water tank by circulating line to carry out heat exchange and heats the water in heat storage water tank.When solar irradiation is not enough, or the water in heat storage water tank is not while reaching design temperature, and user can use the built-in electric auxiliary heating device heating of heat storage water tank for user.Concentrate thermal-arrest-dispersions heat-accumulation solar hot-water heating system, with its be conducive to architecture-integral design, resource-sharing, the advantage such as operating cost is low, daylighting good, system effectiveness is high, by extensively as the conventional solution of building (particularly residential housing) hot water.But in engineering application, be prone to following situation: when occupancy rate is lower, heating agent circulation is not smooth, public heating agent pipe network cold water hold-up is more, when starting this part delay cold water of indoor circulation time, can enter indoor, take away heat in indoor original water pot simultaneously, so not only affect heat transfer rate and efficiency, also can cause the oppositely situation of the public pipe network heating agent of heating of indoor electric auxiliary heating device, greatly increased the electricity charge burden of in earlier stage moving in user.And this kind of stealthy not easy-to-search reason that often consumes energy, so solve the public pipe network hold-up of solar water heating system problem large and that oppositely heat, be the problem of a needs research of engineering design optimization.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of anti-reverse heater of concentrated thermal-arrest dispersion heat-accumulation solar hot-water heating system that cold water hold-up is too much, prevent oppositely heating of avoiding is provided.
The present invention also aims to provide a kind of concentrated thermal-arrest to disperse the anti-reverse heating means of heat-accumulation solar hot-water heating system.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of concentrated thermal-arrest disperses the anti-reverse heater of heat-accumulation solar hot-water heating system, by public heat medium system and user's heat medium system, formed, public heat medium system is mainly comprised of solar heat-exchange water tank, controller for solar, solar energy heating agent circulating pump and public heating agent circulating line, user's heat medium system is mainly comprised of user's heat-exchanging water tank, electric heater unit, user's heating agent circulating line and customer controller, public heat medium system is communicated with the circulation of user's heat medium system, it is characterized in that: on described solar heat-exchange water tank, the first temperature sensor is installed; The end being connected with user's heating agent circulating line at public heating agent circulating line is installed the 4th temperature sensor and the second magnetic valve; On user's heat-exchanging water tank, three-temperature sensor is installed, the end being connected with public heating agent circulating line at user's heating agent circulation line is installed the second temperature sensor and the first magnetic valve.
And the first described temperature sensor and the signal output part of the 4th temperature sensor are connected to controller for solar; Described the second temperature sensor and three-temperature sensor are connected to customer controller; Described the first magnetic valve and the second magnetic valve and controller for solar control connection.
And described user's heat medium system is many groups.
Concentrated thermal-arrest disperses the anti-reverse heating means of heat-accumulation solar hot-water heating system, it is characterized in that:
The step of said method is:
(1) when T4>7 ℃ of the public heating agent pipe end of solar heat-exchange water tank temperature T1-, public heating agent pipe end magnetic valve is opened, solar energy heating agent systemic circulation pump startup, heating agent by solar heat-exchange water tank and public heating agent circulation pipe network circulates, and improves the heat medium temperature of public heating agent circulation pipe network; When T<3 ℃ of the public heating agent pipe end of solar heat-exchange water tank temperature T1-, solar energy heating agent systemic circulation pump is out of service;
(2) during 3>5 ℃ of the user hot water temperature T0-user heat-exchanging water tank temperature T that set when the customer controller of user's heat medium system, and user's heating agent pipeline terminal temperature T2-user heat-exchanging water tank temperature T 3>10 ℃, user's heating agent pipe end magnetic valve is opened, start solar energy heating agent systemic circulation pump simultaneously, carry out heat exchange with indoor;
(3) when 3<5 ℃ of user's heating agent pipeline terminal temperature T2-user heat-exchanging water tank temperature T, user's heating agent pipe end closed electromagnetic valve is closed solar energy heating agent systemic circulation pump simultaneously;
(4) if user's heating agent pipeline terminal temperature T2-user heat-exchanging water tank temperature T 3<10 ℃, and when heating agent pipe end magnetic valve 1 is closed condition, the electric heater unit of user's heat-exchanging water tank starts, until temperature stops while reaching user hot water temperature T0.
Advantage of the present invention and beneficial effect are:
The present invention concentrates thermal-arrest to disperse the anti-reverse heater of heat-accumulation solar hot-water heating system and method, realize public heating agent circulating line main circulation, in public heating agent circulating line, keep higher temperature always, public heating agent circulating line inner cold water hold-up reduces, the ten layers of house of take are example, when the first floor need to start heat exchange circulation time, in heating agent pipe network, being detained heating agent amount is only 3～5% before adjusting, heat exchange efficiency improves greatly, effectively avoided the generation of reverse heating situation, realized the optimization of engineering design simultaneously.
Accompanying drawing explanation
Fig. 1 is fundamental diagram of the present invention;
Fig. 2 is the enlarged diagram of user's heat medium system of the present invention.
1-controller for solar, 2-solar energy heat collector, 3-heating agent liquid supplementation pipe, 4-solar heat-exchange water tank, 5-the first temperature sensor, 6-solar energy heating agent circulating pump, the public heating agent circulating line of 7-, 8-the second temperature sensor, 9-the second magnetic valve, 10-the 4th temperature sensor, 11-user's heating agent circulating line, 12-user's heat-exchanging water tank, 13-electric heater unit, 14-customer controller, 15-three-temperature sensor, 16 first magnetic valves.
The specific embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of concentrated thermal-arrest disperses the anti-reverse heater of heat-accumulation solar hot-water heating system, public heat medium system and user's heat medium system, consist of, public heat medium system is mainly comprised of solar energy heat collector 2, solar heat-exchange water tank 4, controller for solar 1, solar energy heating agent circulating pump 6 and public heating agent circulating line 7.Solar thermal collector is communicated with the circulation of solar heat-exchange water tank, is connected with solar energy primary system circulating pump between solar thermal collector and solar heat-exchange water tank.Solar heat-exchange water tank water side connects solar energy heating agent systemic circulation pump and connects public heating agent circulating line.Solar heat-exchange water tank also connects heating agent liquid supplementation pipe 3.On solar energy heating agent systemic circulation pump and public heating agent circulating line, pressure sensor is installed, controls heat medium system circulating pump and start.The control valve of solar energy primary system circulating pump, solar energy heating agent systemic circulation pump, solar energy heat collector all with controller for solar control connection.
User's heat medium system is mainly comprised of user's heat-exchanging water tank 12, electric heater unit 13, user's heating agent circulating line 11 and customer controller 14, and user's heat-exchanging water tank is provided with electric heater unit, and user's heat-exchanging water tank connects user's heating agent circulating line.Electric heater is connected with customer controller.User's heat medium system can be many groups.In the present embodiment, adopt three groups of user's heat medium systems.
Above-mentioned public heat medium system is communicated with the circulation of user's heat medium system.The innovation of this anti-reverse heater is: the first temperature sensor 5 is installed on solar heat-exchange water tank, for gathering solar heat-exchange water tank temperature T1.The end being connected with user's heating agent circulating line at public heating agent circulating line is installed the 4th temperature sensor 10, for gathering public heating agent pipe end temperature T 4, and the second magnetic valve 9 is installed endways.On user's heat-exchanging water tank, three-temperature sensor 15 is installed, for gathering the temperature T 3 of user's heat-exchanging water tank.The end being connected with public heating agent circulating line at user's heating agent circulation line is installed by the second temperature sensor 8 and the first magnetic valve 16, the second temperature sensors are used for gathering user's heating agent pipeline terminal temperature T2.
The signal output part of the first temperature sensor and the 4th temperature sensor is connected to controller for solar; Described the second temperature sensor and three-temperature sensor are connected to customer controller; Described the first magnetic valve and the second magnetic valve and controller for solar control connection.
Concentrated thermal-arrest disperses the anti-reverse heating means of heat-accumulation solar hot-water heating system, and its method step is:
(1) when T4>7 ℃ of the public heating agent pipe end of solar heat-exchange water tank temperature T1-, public heating agent pipe end magnetic valve is opened, solar energy heating agent systemic circulation pump startup, heating agent by solar heat-exchange water tank and public heating agent circulation pipe network circulates, and improves the heat medium temperature of public heating agent circulation pipe network; When T<3 ℃ of the public heating agent pipe end of solar heat-exchange water tank temperature T1-, solar energy heating agent systemic circulation pump is out of service;
(2) during 3>5 ℃ of the user hot water temperature T0-user heat-exchanging water tank temperature T that set when the customer controller of user's heat medium system, and user's heating agent pipeline terminal temperature T2-user heat-exchanging water tank temperature T 3>10 ℃, user's heating agent pipe end magnetic valve is opened, start solar energy heating agent systemic circulation pump simultaneously, carry out heat exchange with indoor;
(3) when 3<5 ℃ of user's heating agent pipeline terminal temperature T2-user heat-exchanging water tank temperature T, user's heating agent pipe end closed electromagnetic valve is closed solar energy heating agent systemic circulation pump simultaneously;
(4) if user's heating agent pipeline terminal temperature T2-user heat-exchanging water tank temperature T 3<10 ℃, and when heating agent pipe end magnetic valve 1 is closed condition, the electric heater unit of user's heat-exchanging water tank starts, until temperature stops while reaching user hot water temperature T0.
Although disclose for the purpose of illustration embodiments of the invention and accompanying drawing, but it will be appreciated by those skilled in the art that: within not departing from the spirit and scope of the present invention and claims, various replacements, variation and modification are all possible, therefore, scope of the present invention is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (4)
1. a concentrated thermal-arrest disperses the anti-reverse heater of heat-accumulation solar hot-water heating system, by public heat medium system and user's heat medium system, formed, public heat medium system is mainly by solar thermal collector, solar heat-exchange water tank, controller for solar, solar energy heating agent circulating pump and public heating agent circulating line form, user's heat medium system is mainly by user's heat-exchanging water tank, electric heater unit, user's heating agent circulating line and customer controller form, public heat medium system is communicated with the circulation of user's heat medium system, it is characterized in that: on described solar heat-exchange water tank, the first temperature sensor is installed, the end being connected with user's heating agent circulating line at public heating agent circulating line is installed the 4th temperature sensor and the second magnetic valve, on user's heat-exchanging water tank, three-temperature sensor is installed, the end being connected with public heating agent circulating line at user's heating agent circulation line is installed the second temperature sensor and the first magnetic valve.
2. concentrated thermal-arrest according to claim 1 disperses the anti-reverse heater of heat-accumulation solar hot-water heating system, it is characterized in that: the first described temperature sensor and the signal output part of the 4th temperature sensor are connected to controller for solar; Described the second temperature sensor and three-temperature sensor are connected to customer controller; Described the first magnetic valve and the second magnetic valve and controller for solar control connection.
3. concentrated thermal-arrest according to claim 1 disperses the anti-reverse heater of heat-accumulation solar hot-water heating system, it is characterized in that: described user's heat medium system is many groups.
4. concentrated thermal-arrest disperses the anti-reverse heating means of heat-accumulation solar hot-water heating system, it is characterized in that:
The step of said method is:
(1) when T4>7 ℃ of the public heating agent pipe end of solar heat-exchange water tank temperature T1-, public heating agent pipe end magnetic valve is opened, solar energy heating agent systemic circulation pump startup, heating agent by solar heat-exchange water tank and public heating agent circulation pipe network circulates, and improves the heat medium temperature of public heating agent circulation pipe network; When T<3 ℃ of the public heating agent pipe end of solar heat-exchange water tank temperature T1-, solar energy heating agent systemic circulation pump is out of service;
(2) during 3>5 ℃ of the user hot water temperature T0-user heat-exchanging water tank temperature T that set when the customer controller of user's heat medium system, and user's heating agent pipeline terminal temperature T2-user heat-exchanging water tank temperature T 3>10 ℃, user's heating agent pipe end magnetic valve is opened, start solar energy heating agent systemic circulation pump simultaneously, carry out heat exchange with indoor;
(3) when 3<5 ℃ of user's heating agent pipeline terminal temperature T2-user heat-exchanging water tank temperature T, user's heating agent pipe end closed electromagnetic valve is closed solar energy heating agent systemic circulation pump simultaneously;
(4) if user's heating agent pipeline terminal temperature T2-user heat-exchanging water tank temperature T 3<10 ℃, and when heating agent pipe end magnetic valve 1 is closed condition, the electric heater unit of user's heat-exchanging water tank starts, until temperature stops while reaching user hot water temperature T0.
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| CN201310591452.7A CN103673058B (en) | 2013-11-20 | 2013-11-20 | Concentrate the collection dissipation of heat anti-reverse heating means of heat-accumulation solar hot-water system |
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| CN201310591452.7A CN103673058B (en) | 2013-11-20 | 2013-11-20 | Concentrate the collection dissipation of heat anti-reverse heating means of heat-accumulation solar hot-water system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518881A (en) * | 2018-03-14 | 2018-09-11 | 天津大学 | A kind of antitheft heat control method of concentration thermal-arrest dispersed supply of heating formula solar water heating system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545654A (en) * | 2008-03-26 | 2009-09-30 | 钱志海 | Solar centralized heat collection household water tank exchange heat supply system |
| CN201488125U (en) * | 2009-09-18 | 2010-05-26 | 钱志海 | Solar-concentrating heat-collecting individual water tank exchange heat supply system |
| CN201706602U (en) * | 2010-07-02 | 2011-01-12 | 浙江世贸建筑科技研究院有限公司 | Intelligent master control system for centralized heat-collection and individual household heat-storage type solar water heating |
| CN102080851A (en) * | 2011-01-14 | 2011-06-01 | 崔新明 | Forced circulation and indirect heat exchange type solar water heating system and control method thereof |
| CN201926029U (en) * | 2011-01-14 | 2011-08-10 | 崔新明 | Solar hot water circulation control system capable of automatically regulating heat distribution |
| CN201926024U (en) * | 2011-01-14 | 2011-08-10 | 崔新明 | Pressure-bearing bi-water tank circulating solar hot water control system |
| CN202470213U (en) * | 2012-02-18 | 2012-10-03 | 于勤勇 | Solar system for intensively collecting heat and storing heat in individual households |
| JP2012215328A (en) * | 2011-03-31 | 2012-11-08 | Osaka Gas Co Ltd | Heat supply system |
| CN103185368A (en) * | 2011-12-27 | 2013-07-03 | 廊坊创意博能源有限公司 | System and method for concentratedly collecting heat from solar hot water and accumulating heat by individual family and directionally transferring heat |
| CN203657063U (en) * | 2013-11-20 | 2014-06-18 | 天津市天友建筑设计股份有限公司 | Solar hot water system reverse-heating-proof device capable of collecting heat in concentrated mode and storing heat in dispersing mode |
-
2013
- 2013-11-20 CN CN201310591452.7A patent/CN103673058B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545654A (en) * | 2008-03-26 | 2009-09-30 | 钱志海 | Solar centralized heat collection household water tank exchange heat supply system |
| CN201488125U (en) * | 2009-09-18 | 2010-05-26 | 钱志海 | Solar-concentrating heat-collecting individual water tank exchange heat supply system |
| CN201706602U (en) * | 2010-07-02 | 2011-01-12 | 浙江世贸建筑科技研究院有限公司 | Intelligent master control system for centralized heat-collection and individual household heat-storage type solar water heating |
| CN102080851A (en) * | 2011-01-14 | 2011-06-01 | 崔新明 | Forced circulation and indirect heat exchange type solar water heating system and control method thereof |
| CN201926029U (en) * | 2011-01-14 | 2011-08-10 | 崔新明 | Solar hot water circulation control system capable of automatically regulating heat distribution |
| CN201926024U (en) * | 2011-01-14 | 2011-08-10 | 崔新明 | Pressure-bearing bi-water tank circulating solar hot water control system |
| JP2012215328A (en) * | 2011-03-31 | 2012-11-08 | Osaka Gas Co Ltd | Heat supply system |
| CN103185368A (en) * | 2011-12-27 | 2013-07-03 | 廊坊创意博能源有限公司 | System and method for concentratedly collecting heat from solar hot water and accumulating heat by individual family and directionally transferring heat |
| CN202470213U (en) * | 2012-02-18 | 2012-10-03 | 于勤勇 | Solar system for intensively collecting heat and storing heat in individual households |
| CN203657063U (en) * | 2013-11-20 | 2014-06-18 | 天津市天友建筑设计股份有限公司 | Solar hot water system reverse-heating-proof device capable of collecting heat in concentrated mode and storing heat in dispersing mode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518881A (en) * | 2018-03-14 | 2018-09-11 | 天津大学 | A kind of antitheft heat control method of concentration thermal-arrest dispersed supply of heating formula solar water heating system |
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