CN105240917A - Direct type solar heating system for multiple groups of heat storage water tanks and control method for direct type solar heating system - Google Patents
Direct type solar heating system for multiple groups of heat storage water tanks and control method for direct type solar heating system Download PDFInfo
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- CN105240917A CN105240917A CN201510743134.7A CN201510743134A CN105240917A CN 105240917 A CN105240917 A CN 105240917A CN 201510743134 A CN201510743134 A CN 201510743134A CN 105240917 A CN105240917 A CN 105240917A
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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
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Abstract
The invention discloses a direct type solar heating system for multiple groups of heat storage water tanks. The direct type solar heating system comprises a heat collecting system, a heat storage switching system and a user terminal, wherein the heat collecting system comprises a solar heat collector and a heat-collecting circulating water pump; the heat storage switching system comprises at least two heat storage water tanks and a valve assembly; by controlling a corresponding control valve in the valve assembly, any heat storage water tank and the solar heat collector form a circulating path structure, and any heat storage water tank and the user terminal form the circulating path structure. According to the direct type solar heating system, a plurality of three-way valves are correspondingly controlled, so that the heat collecting system and the two heat storage water tanks carry out alternative type heat-collection and heat-storage cycle; when the heat collecting efficiency of the solar heat collector is guaranteed, water temperatures in the two heat storage water tanks are kept relatively stable; and in case of guaranteeing a water supply temperature, startup time of an auxiliary heat source is reduced, energy-saving property of the system is improved and energy consumption efficiency of the system is improved.
Description
Technical field
The invention belongs to technical field of solar energy utilization equipment, particularly a kind of direct-type solar energy heating system and control method thereof organizing hot water storage tank more.
Background technology
Solar energy is the main source of all energy on the earth, and it is inexhaustible, non-harmful clean energy resource, is also the most promising energy that after 21 century, the mankind can expect.China is vast in territory, and the area that the sunshine-duration in year is greater than 2000 hours accounts for 2/3 of national area, be in utilize solar energy more favourable region in.
But solar energy is the thin energy, and the energy resource density of its earth surface is lower.And solar radiation heat has season, rule change round the clock, strongly affecting simultaneously also by the enchancement factor such as rain or shine sexual intercourse, therefore solar radiant heat measurer has very large unstability.Because solar energy heating and building heating thermal load demands have fluctuation, and solar energy heating and space heating load demand have the features such as asynchronism, cause utilizing solar energy, must solve intermittence and the unreliability problem of solar energy.Arranging regenerative apparatus in solar energy utilization system is one of most effective method solved the problem.Facts have proved, regenerative apparatus has the meaning of particular importance to the utilization ratio improving solar energy.
The method of the solar heating accumulation of heat of normal employing has, the forms such as hot water storage tank accumulation of heat, phase-change material accumulation of heat, soil thermal storage.Hot water storage tank accumulation of heat, due to the feature such as with low cost, system reliability is strong, causes it to be accumulation of heat form the most general at present.But owing to being subject to the impact that season, weather and heat demand for building change, cause hold over system water tank heat in continuous change.After adopting fixed volume hot water storage tank system, accumulation of heat volume is crossed conference and is caused water tank temperature to be starkly lower than design supply water temperature, and system needs the long-time auxiliary thermal source that starts to carry out heat supply, reduces the energy saving of system; Accumulation of heat volume is too small, and heat collector return water temperature can be caused higher, reduces the heat-collecting capacity of heat collector, can reduce the energy saving of system equally.Thus, often there will be whole heating season water tank fluctuating temperature violent, in the little In The Initial Period Of Heating of heat load demand and heating latter stage, because amount of stored heat is greater than water tank heat storage ability, cause hot water storage tank water temperature higher than design load, on the one hand collecting system backwater water temperature is raised, collecting plate the quantity of heat convection increases, to the collecting efficiency of collecting plate be reduced, reduce system heat-collecting capacity; On the other hand hot water storage tank radiation loss is increased, reduce the energy consumption efficiency of whole system.
Summary of the invention
The object of the invention is to: for above-mentioned Problems existing, a kind of direct-type solar energy heating system and the control method thereof that effectively can solve the in-problem many group hot water storage tanks of existing fixing accumulation of heat are provided.
The object of the invention is to be achieved through the following technical solutions: a kind of direct-type solar energy heating system of many group hot water storage tanks, it is characterized in that: comprise collecting system, accumulation of heat switched system and user's end, described collecting system comprises solar thermal collector and thermal-arrest water circulating pump, described accumulation of heat switched system comprises at least two hot water storage tanks and valve assembly, by the corresponding control valve in by-pass valve control assembly, can make to form peripheral passage structure between any one hot water storage tank and solar thermal collector and make to form peripheral passage structure between any one hot water storage tank and user's end.
The direct-type solar energy heating system of many group hot water storage tanks of the present invention, accumulation of heat switched system described in it comprises the first hot water storage tank, the second hot water storage tank, the first triple valve, the second triple valve, the 5th triple valve and the 6th triple valve;
The port of export of described solar thermal collector is communicated with the first interface end of the first triple valve by pipeline, second interface end of described first triple valve is communicated with the first hot water storage tank by pipeline, described first hot water storage tank is communicated with by second interface end of pipeline with the 6th triple valve, the first interface end of described 6th triple valve is communicated with by the entrance point of the pipeline with solar thermal collector that arrange thermal-arrest water circulating pump, forms peripheral passage structure between described solar thermal collector and the first hot water storage tank; 3rd interface end of described first triple valve is communicated with the second hot water storage tank by pipeline, described second hot water storage tank is communicated with the 3rd interface end of the 6th triple valve by pipeline, peripheral passage structure is formed between described second hot water storage tank and solar thermal collector, by controlling the first triple valve and the 6th triple valve, solar thermal collector is directly heated respectively to the backwater of the first hot water storage tank or the second hot water storage tank;
The heating water return of described user's end is communicated with the first interface end of the 5th triple valve by the pipeline being provided with heating water circulating pump, second of described 5th triple valve, three interface end are communicated with the second hot water storage tank with the first hot water storage tank respectively by pipeline, described first hot water storage tank and the second hot water storage tank by pipeline respectively with second of the second triple valve, three interface end are communicated with, the first interface end of described second triple valve by pipeline by by the heating water return that heats for user's end, by controlling the second triple valve and the 5th triple valve, described user's end is made to form peripheral passage structure respectively and between the first hot water storage tank and the second hot water storage tank.
The direct-type solar energy heating system of many group hot water storage tanks of the present invention, auxiliary thermal source system is provided with between its first interface end at described second triple valve and user's end, described auxiliary thermal source system comprises auxiliary thermal source, 3rd triple valve and the 4th triple valve, the first interface end of described second triple valve is communicated with by the first interface end of pipeline with the 3rd triple valve, second interface end of described 3rd triple valve is communicated with by second interface end of pipeline with the 4th triple valve, 3rd interface end of described 3rd triple valve is communicated with the 3rd interface end of the 4th triple valve by auxiliary thermal source, the first interface end of described 4th triple valve by pipeline by by the heating water return that heats for user's end.
A kind of control method of direct-type solar energy heating system of many group hot water storage tanks, it is characterized in that: control the first triple valve and the 6th triple valve, solar thermal collector is communicated with the first hot water storage tank and forms peripheral passage, start thermal-arrest water circulating pump, the backwater heated through solar thermal collector is flowed into the first hot water storage tank by the first triple valve, low-temperature return water constantly flows into solar thermal collector by the 6th triple valve, constantly obtains solar energy heating amount thus; When the amount of stored heat of the first hot water storage tank is higher than setting value, namely when water temperature is higher than setting value, control the first triple valve and the 6th triple valve action, solar thermal collector is communicated with the second hot water storage tank and forms peripheral passage, the second hot water storage tank is flowed into by the first triple valve by the backwater that solar thermal collector heats, low-temperature return water constantly flows into solar thermal collector by the 6th triple valve, the heat that collecting system obtains, constantly accumulated by the second hot water storage tank, constantly complete thermal-arrest, accumulation of heat circulation thus;
Control the second triple valve and the 5th triple valve, user's end is communicated with the first hot water storage tank and forms peripheral passage, heating water return enters the first hot water storage tank by the 5th triple valve and obtains heat, heating backwater, confessed by the second triple valve by the heating water return heated, if leaving water temperature does not meet design requirement, then supply water by the 3rd triple valve inflow auxiliary thermal source, design supply water temperature is heated to by auxiliary thermal source, again by the 4th triple valve supply user, if leaving water temperature meets design requirement, then supply water and directly supply user by the 3rd triple valve and the 4th triple valve, after the first hot water storage tank is drawn without effective heat, control the second triple valve and the 5th triple valve action, user's end is communicated with the second hot water storage tank and forms peripheral passage, then heating water return is by the 5th triple valve action, be injected into the second hot water storage tank to heat, then flowed out by the second triple valve, complete storage heating.
The present invention is by the corresponding control to multiple triple valve, make that collecting system and two hot water storage tanks carry out the thermal-arrest of alternative expression, accumulation of heat circulates, while ensure that solar thermal collector collecting efficiency, water temperature in two hot water storage tanks is kept relative stability, and the start-up time of auxiliary thermal source is decreased when assure feed water temperature, improve the energy saving of system and the energy consumption efficiency of system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark in figure: 1 is solar thermal collector, 2 is thermal-arrest water circulating pump, and 4 is the first hot water storage tank, and 5 is the second hot water storage tank, 6 is the first triple valve, 7 is the second triple valve, and 8 is the 5th triple valve, and 9 is the 6th triple valve, 10 is heating water circulating pump, 11 is auxiliary thermal source, and 12 is the 3rd triple valve, and 13 is the 4th triple valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the technology of the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and be not used in restriction invention.
As shown in Figure 1, a kind of direct-type solar energy heating system of many group hot water storage tanks, comprise collecting system, accumulation of heat switched system and user's end, described collecting system comprises solar thermal collector and thermal-arrest water circulating pump, described accumulation of heat switched system comprises at least two hot water storage tanks and valve assembly, by the corresponding control valve in by-pass valve control assembly, can make to form peripheral passage structure between any one hot water storage tank and solar thermal collector and make to form peripheral passage structure between any one hot water storage tank and user's end.In the present embodiment, described accumulation of heat switched system comprises the first hot water storage tank 4, second hot water storage tank 5, first triple valve 6, second triple valve 7, the 5th triple valve 8 and the 6th triple valve 9.
The port of export of described solar thermal collector 1 is communicated with by the first interface end of pipeline with the first triple valve 6, second interface end of described first triple valve 6 is communicated with the first hot water storage tank 4 by pipeline, described first hot water storage tank 4 is communicated with by second interface end of pipeline with the 6th triple valve 9, the first interface end of described 6th triple valve 9 is communicated with the entrance point of solar thermal collector 1 by the pipeline arranging thermal-arrest water circulating pump 2, forms peripheral passage structure between described solar thermal collector 1 and the first hot water storage tank 4; 3rd interface end of described first triple valve 6 is communicated with the second hot water storage tank 5 by pipeline, described second hot water storage tank 5 is communicated with the 3rd interface end of the 6th triple valve 9 by pipeline, peripheral passage structure is formed between described second hot water storage tank 5 and solar thermal collector 1, by controlling the first triple valve 6 and the 6th triple valve 9, solar thermal collector 1 is directly heated respectively to the backwater of the first hot water storage tank 4 or the second hot water storage tank 5.
The heating water return of described user's end is communicated with the first interface end of the 5th triple valve 8 by the pipeline being provided with heating water circulating pump 10, second of described 5th triple valve 8, three interface end are communicated with the second hot water storage tank 5 with the first hot water storage tank 4 respectively by pipeline, described first hot water storage tank 4 and the second hot water storage tank 5 by pipeline respectively with second of the second triple valve 7, three interface end are communicated with, the first interface end of described second triple valve 7 by pipeline by by the heating water return that heats for user's end, by controlling the second triple valve 7 and the 5th triple valve 8, described user's end is made to form peripheral passage structure respectively and between the first hot water storage tank 4 and the second hot water storage tank 5.
Wherein, auxiliary thermal source system is provided with between the first interface end and user's end of described second triple valve 7, described auxiliary thermal source system comprises auxiliary thermal source 11, 3rd triple valve 12 and the 4th triple valve 13, the first interface end of described second triple valve 7 is communicated with by the first interface end of pipeline with the 3rd triple valve 12, second interface end of described 3rd triple valve 12 is communicated with by second interface end of pipeline with the 4th triple valve 13, 3rd interface end of described 3rd triple valve 12 is communicated with the 3rd interface end of the 4th triple valve 13 by auxiliary thermal source 11, the first interface end of described 4th triple valve 13 by pipeline by by the heating water return that heats for user's end.
The control method of the direct-type solar energy heating system of many group hot water storage tanks of the present invention is:
Control the first triple valve and the 6th triple valve, solar thermal collector is communicated with the first hot water storage tank and forms peripheral passage, start thermal-arrest water circulating pump, the backwater heated through solar thermal collector is flowed into the first hot water storage tank by the first triple valve, low-temperature return water constantly flows into solar thermal collector by the 6th triple valve, constantly obtains solar energy heating amount thus; When the amount of stored heat of the first hot water storage tank is higher than setting value, namely when water temperature is higher than setting value, control the first triple valve and the 6th triple valve action, solar thermal collector is communicated with the second hot water storage tank and forms peripheral passage, the second hot water storage tank is flowed into by the first triple valve by the backwater that solar thermal collector heats, low-temperature return water constantly flows into solar thermal collector by the 6th triple valve, the heat that collecting system obtains, constantly accumulated by the second hot water storage tank, constantly complete thermal-arrest, accumulation of heat circulation thus;
Control the second triple valve and the 5th triple valve, user's end is communicated with the first hot water storage tank and forms peripheral passage, heating water return enters the first hot water storage tank by the 5th triple valve and obtains heat, heating backwater, confessed by the second triple valve by the heating water return heated, if leaving water temperature does not meet design requirement, then supply water by the 3rd triple valve inflow auxiliary thermal source, design supply water temperature is heated to by auxiliary thermal source, again by the 4th triple valve supply user, if leaving water temperature meets design requirement, then supply water and directly supply user by the 3rd triple valve and the 4th triple valve, after the first hot water storage tank is drawn without effective heat, control the second triple valve and the 5th triple valve action, user's end is communicated with the second hot water storage tank and forms peripheral passage, then heating water return is by the 5th triple valve action, be injected into the second hot water storage tank to heat, then flowed out by the second triple valve, complete storage heating.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. one kind, organize the direct-type solar energy heating system of hot water storage tank more, it is characterized in that: comprise collecting system, accumulation of heat switched system and user's end, described collecting system comprises solar thermal collector (1) and thermal-arrest water circulating pump (2), described accumulation of heat switched system comprises at least two hot water storage tanks and valve assembly, by the corresponding control valve in by-pass valve control assembly, can make to form peripheral passage structure between any one hot water storage tank and solar thermal collector (1) and make to form peripheral passage structure between any one hot water storage tank and user's end.
2. the direct-type solar energy heating system of many group hot water storage tanks according to claim 1, is characterized in that: described accumulation of heat switched system comprises the first hot water storage tank (4), the second hot water storage tank (5), the first triple valve (6), the second triple valve (7), the 5th triple valve (8) and the 6th triple valve (9);
The port of export of described solar thermal collector (1) is communicated with by the first interface end of pipeline with the first triple valve (6), second interface end of described first triple valve (6) is communicated with the first hot water storage tank (4) by pipeline, described first hot water storage tank (4) is communicated with by second interface end of pipeline with the 6th triple valve (9), the first interface end of described 6th triple valve (9) is communicated with the entrance point of solar thermal collector (1) by the pipeline arranging thermal-arrest water circulating pump (2), peripheral passage structure is formed between described solar thermal collector (1) and the first hot water storage tank (4), 3rd interface end of described first triple valve (6) is communicated with the second hot water storage tank (5) by pipeline, described second hot water storage tank (5) is communicated with by the 3rd interface end of pipeline with the 6th triple valve (9), peripheral passage structure is formed between described second hot water storage tank (5) and solar thermal collector (1), by controlling the first triple valve (6) and the 6th triple valve (9), solar thermal collector (1) is directly heated respectively to the backwater of the first hot water storage tank (4) or the second hot water storage tank (5),
The heating water return of described user's end is communicated with the first interface end of the 5th triple valve (8) by the pipeline being provided with heating water circulating pump (10), second of described 5th triple valve (8), three interface end are communicated with the second hot water storage tank (5) with the first hot water storage tank (4) respectively by pipeline, described first hot water storage tank (4) and the second hot water storage tank (5) by pipeline respectively with second of the second triple valve (7), three interface end are communicated with, the first interface end of described second triple valve (7) by pipeline by by the heating water return that heats for user's end, by controlling the second triple valve (7) and the 5th triple valve (8), described user's end is made to form peripheral passage structure respectively and between the first hot water storage tank (4) and the second hot water storage tank (5).
3. the direct-type solar energy heating system of many group hot water storage tanks according to claim 2, it is characterized in that: between the first interface end and user's end of described second triple valve (7), be provided with auxiliary thermal source system, described auxiliary thermal source system comprises auxiliary thermal source (11), 3rd triple valve (12) and the 4th triple valve (13), the first interface end of described second triple valve (7) is communicated with by the first interface end of pipeline with the 3rd triple valve (12), second interface end of described 3rd triple valve (12) is communicated with by second interface end of pipeline with the 4th triple valve (13), 3rd interface end of described 3rd triple valve (12) is communicated with the 3rd interface end of the 4th triple valve (13) by auxiliary thermal source (11), the first interface end of described 4th triple valve (13) by pipeline by by the heating water return that heats for user's end.
4. organize the control method of the direct-type solar energy heating system of hot water storage tank as claimed in claim 2 or claim 3 for one kind more, it is characterized in that: control the first triple valve and the 6th triple valve, solar thermal collector is communicated with the first hot water storage tank and forms peripheral passage, start thermal-arrest water circulating pump, the backwater heated through solar thermal collector is flowed into the first hot water storage tank by the first triple valve, low-temperature return water constantly flows into solar thermal collector by the 6th triple valve, constantly obtains solar energy heating amount thus; When the amount of stored heat of the first hot water storage tank is higher than setting value, namely when water temperature is higher than setting value, control the first triple valve and the 6th triple valve action, solar thermal collector is communicated with the second hot water storage tank and forms peripheral passage, the second hot water storage tank is flowed into by the first triple valve by the backwater that solar thermal collector heats, low-temperature return water constantly flows into solar thermal collector by the 6th triple valve, the heat that collecting system obtains, constantly accumulated by the second hot water storage tank, constantly complete thermal-arrest, accumulation of heat circulation thus;
Control the second triple valve and the 5th triple valve, user's end is communicated with the first hot water storage tank and forms peripheral passage, heating water return enters the first hot water storage tank by the 5th triple valve and obtains heat, heating backwater, confessed by the second triple valve by the heating water return heated, if leaving water temperature does not meet design requirement, then supply water by the 3rd triple valve inflow auxiliary thermal source, design supply water temperature is heated to by auxiliary thermal source, again by the 4th triple valve supply user, if leaving water temperature meets design requirement, then supply water and directly supply user by the 3rd triple valve and the 4th triple valve, after the first hot water storage tank is drawn without effective heat, control the second triple valve and the 5th triple valve action, user's end is communicated with the second hot water storage tank and forms peripheral passage, then heating water return is by the 5th triple valve action, be injected into the second hot water storage tank to heat, then flowed out by the second triple valve, complete storage heating.
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| CN201510743134.7A CN105240917B (en) | 2015-11-05 | 2015-11-05 | A kind of the direct-type solar energy heating system and its control method of multiple groups hot water storage tank |
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| CN201510743134.7A CN105240917B (en) | 2015-11-05 | 2015-11-05 | A kind of the direct-type solar energy heating system and its control method of multiple groups hot water storage tank |
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| CN105240917B CN105240917B (en) | 2019-08-30 |
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| CN107940538A (en) * | 2017-12-12 | 2018-04-20 | 华能国际电力股份有限公司丹东电厂 | A kind of classification hold over system and its peak regulating method for cogeneration units |
| CN109631350A (en) * | 2019-01-30 | 2019-04-16 | 中国建筑西北设计研究院有限公司 | Solar heat-preservation heating system and its heating control method |
| CN110822540A (en) * | 2019-11-22 | 2020-02-21 | 北京冠亚伟业民用建筑设计有限公司 | Dual-water-tank switching centralized hot water high-temperature sterilization system and method for kindergarten |
| CN117213024A (en) * | 2023-09-13 | 2023-12-12 | 广州施杰节能科技有限公司 | Energy-saving device of chilled water pump set |
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| CN117213024B (en) * | 2023-09-13 | 2024-04-05 | 广州施杰节能科技有限公司 | Energy-saving device of chilled water pump set |
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