CN203249415U - Anti-overheating panel solar water heating system - Google Patents
Anti-overheating panel solar water heating system Download PDFInfo
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- CN203249415U CN203249415U CN 201320118264 CN201320118264U CN203249415U CN 203249415 U CN203249415 U CN 203249415U CN 201320118264 CN201320118264 CN 201320118264 CN 201320118264 U CN201320118264 U CN 201320118264U CN 203249415 U CN203249415 U CN 203249415U
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- cocycle
- main road
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The utility model discloses an anti-overheating panel solar water heating system. The anti-overheating panel solar water heating system comprises a plate change circulation system and a heat collecting system main circuit. The heat collecting system main circuit comprises a plate-type heat exchanger medium lateral outlet, a lower circulation part, a panel heat collector, an upper circulation part, an upper circulation main valve and a plate-type heat exchanger medium lateral inlet, and further comprises a first bypass system and a second bypass system, wherein the first bypass system is connected with the lower circulation part of the heat collecting system main circuit in parallel, and the second bypass system is connected with the upper circulation part of the heat collecting system main circuit in parallel. The anti-overheating panel solar water heating system can guarantee the temperature of a solar water tank to be constant, controls the temperature of the solar water tank and medium in a heat collector, resolves the scaling problem of a plate-type heat exchanger and a water tank and a cavitation problem of a heat supply water pump, is simple in structure, low in investment, stable, is reliable, is low in fault rate, largely reduces maintenance cost, prolongs the service life of the heat collector, and improves the reliability of the whole system.
Description
Technical field
The utility model relates to a kind of panel solar hot-water heating system, relates in particular to a kind of anti-overheated panel solar hot-water heating system.
Background technology
In conventional panel solar hot-water heating system, mainly be divided into two sub-systems, comprise that collecting system main road and plate change the circulatory system, wherein the collecting system main road comprises the cocycle of collecting system main road and the lower circulation of collecting system main road.At first the medium of flat plate collector inside absorbs each band of light by flat plate collector and obtains heat, controls the thermal-arrest circulating pump by the difference of cocycle temp probe and lower circulating temperature probe measured temperature again and circulates, and this part consists of collecting system main road.Change circulating pump and the thermal-arrest circulating pump starts simultaneously by control panel, cold water carries out heat exchange with the circulatory mediator that has absorbed photo-thermal and heats up in plate type heat exchanger, and this part consists of plate and changes the circulatory system.Therefore, if when water temperature over-high, the heat of Absorption of Medium can't exchange better in the collecting system main road, thus a large amount of the gathering.This just requires to have the approach of the heat that sheds, and unlikely appearance is because medium temperature in uncontrollable solar water container temperature and the heat collector, thereby can cause that plate type heat exchanger, water tank scale velocity are accelerated, vaporization causes that heat collector swollenly leaks, the generation of heat supply pump cavitation phenomenon.
At present, the panel solar hot-water heating system of domestic use all adopts single channel circulating pump group to carry out the heat exchange of thermal-arrest medium circulation, and this type systematic belongs to the enclosed type circulation, can prepare preferably hot water.Because its closure can't shed the heat of medium, produces a large amount of maintenance issues.And adopting the single channel endless form, medium temperature in uncontrollable solar water container temperature and the heat collector easily causes the scale velocity of plate type heat exchanger, water tank to accelerate; Unfavorable to media for heat exchange in the flat plate collector, vaporization causes the swollen leakage of heat collector; Water temperature over-high easily causes heat supply water pump generation cavitation phenomenons simultaneously.
The utility model content
It is a kind of simple in structure that the purpose of this utility model is to provide, and can make the anti-overheated panel solar hot-water heating system of system stability reliability service.
For achieving the above object, the technical scheme taked of the utility model is:
A kind of anti-overheated panel solar hot-water heating system, comprise that plate changes the circulatory system and collecting system main road, wherein the collecting system main road comprises lower circulation, the flat plate collector of plate type heat exchanger side medium outlet, collecting system main road, cocycle, cocycle main valve and the plate type heat exchanger side medium entrance of collecting system main road, also comprise the first bypath system and the second bypath system, the lower circulation of described the first bypath system and collecting system main road is in parallel, and the cocycle of described the second bypath system and described collecting system main road is in parallel.
Described the first bypath system is formed by connecting with pipeline by lower circulation bypass gate valve and lower circulation bypass magnetic valve.
Described the second bypath system by cocycle bypass heat eliminating medium case pre-gate valve, cocycle bypass magnetic valve, heat eliminating medium case, cocycle bypass pump pre-gate valve, collecting system bypass thermal-arrest circulating pump, cocycle bypass pump after check-valves be formed by connecting with pipeline successively.
Described plate changes the circulatory system and changes circulatory system pump pre-gate valve, plate by solar water container outlet, plate and change circulating pump, plate and change check-valves behind the circulatory system pump, plate type heat exchanger water side entrance, plate type heat exchanger water side outlet, solar energy water tank inlet and be formed by connecting with pipeline successively.
The inside of described flat plate collector is the absorber plate that is coated with coating for selective absorption.
The inner bag of described heat eliminating medium case and outer courage all adopt the common carbon steel board of coated corrosion resistant layer or corrosion resistant plate to make, and laminated heat-preserving thickness is not less than 10mm, and the volume of heat eliminating medium case is not less than 1/2 of total system dielectric capacity.
The outer courage of described solar water container adopts common carbon steel board or the corrosion resistant alloy-steel plate of corrosion resistant plate, coated corrosion resistant layer, and inner bag adopts the food-grade corrosion resistant plate of environmentally-friendly sanitary, therebetween heat-insulation layer.
The anti-overheated panel solar hot-water heating system that the utility model provides, owing to having increased the first bypath system and the second bypath system on the basis of conventional panel solar hot-water heating system collecting system main road, guarantee the solar water container temperature constant, the temperature of medium in solar water container and the heat collector be can control, the thermal-arrest medium and the overheated plate type heat exchanger that causes of hot water, the scale problems of water tank and the cavitation phenomenons of heat supply water pump that often occur in the conventional panel solar hot-water heating system solved.Operation by anti-overheated panel solar hot-water heating system can shed superfluous heat in the heat collector by the open type medium box, prolonged the life-span of heat collector.Both can guarantee the hot water water temperature, can also prevent because the swollen leakage problem of the too high flat plate collector that causes of thermal-arrest medium temperature.Should prevent that overheated panel solar hot-water heating system was simple in structure, small investment, system stability is reliable, and system failure rate is low, has significantly reduced maintenance cost, has improved the reliability of whole system.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure, the 1-solar water container, the 2-plate changes circulatory system pump pre-gate valve, the 3-plate changes circulating pump, the 4-plate changes check-valves behind the circulatory system pump, the 5-plate type heat exchanger, circulation main road pump pre-gate valve under the 6-, magnetic valve before the circulation main road pump under the 7-, 8-collecting system main road thermal-arrest circulating pump, check-valves behind the circulation main road pump under the 9-, circulation bypass gate valve under the 10-, circulation bypass magnetic valve under the 11-, circulating temperature probe under the 12-, 13-flat plate collector, 14-cocycle temp probe, 15-cocycle bypass heat eliminating medium case pre-gate valve, 16-cocycle main road gate valve, 17-cocycle main road magnetic valve, 18-cocycle bypass magnetic valve, 19-heat eliminating medium case, 20-cocycle bypass pump pre-gate valve, 21-collecting system bypass thermal-arrest circulating pump, check-valves after the 22-cocycle bypass pump, 23-cocycle main valve, 24-solar water container temp probe, the outlet of 25-plate type heat exchanger side medium, 26-plate type heat exchanger side medium entrance, 27-plate type heat exchanger water side outlet, 28-plate type heat exchanger water side entrance, the outlet of 29-solar water container, 30-solar energy water tank inlet, 31-flat plate collector arrival end, the 32-flat plate collector port of export.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing thereof, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
As shown in Figure 1, a kind of anti-overheated panel solar hot-water heating system that the utility model provides comprises
Plate changes the circulatory system and collecting system main road, wherein the collecting system main road comprises lower circulation, the flat plate collector 13 of plate type heat exchanger side medium outlet 25, collecting system main road, cocycle, cocycle main valve 23 and the plate type heat exchanger side medium entrance 26 of collecting system main road, also comprises the first bypath system and the second bypath system.The first bypath system is formed by connecting by lower circulation bypass gate valve 10 and lower circulation bypass magnetic valve 11 usefulness pipelines, and the lower circulation by threeway and collecting system main road is in parallel.The second bypath system by cocycle bypass heat eliminating medium case pre-gate valve 15, cocycle bypass magnetic valve 18, heat eliminating medium case 19, cocycle bypass pump pre-gate valve 20, collecting system bypass thermal-arrest circulating pump 21 and cocycle bypass pump after check-valves 22, be formed by connecting with pipeline successively, the cocycle by threeway and collecting system main road is in parallel.
Plate changes the circulatory system and changes circulatory system pump pre-gate valve 2, plate by solar water container outlet 29, plate and change circulating pump 3, plate and change check-valves 4 behind the circulatory system pump, plate type heat exchanger water side entrance 28, plate type heat exchanger water side outlet 27 and solar energy water tank inlet 30, is formed by connecting with pipeline successively.The lower circulation of collecting system main road by check-valves 9 behind lower circulation main road pump pre-gate valve 6, the front magnetic valve 7 of lower circulation main road pump, collecting system main road thermal-arrest circulating pump 8 and the lower circulation main road pump, is formed by connecting with pipeline successively.The cocycle of collecting system main road is formed by connecting by cocycle main road gate valve 16 and cocycle main road magnetic valve 17 usefulness pipelines.The simultaneously start and stop of 17, two magnetic valves of cocycle main road magnetic valve of magnetic valve 7 and collecting system main road can realize main bypass changeover before the lower circulation main road pump of collecting system main road in heating cold water.
Apart from bottom 300～400mm place solar water container temp probe 24 is installed at solar water container 1, is convenient to measure the water temperature in the solar water container 1.At the pipeline between check-valves 9 and the flat plate collector arrival end 31 behind the lower circulation main road pump lower circulating temperature probe 12 is installed, is convenient to measure the temperature of lower circulation line.At the flat plate collector port of export 32 cocycle temp probe 14 is installed, is convenient to measure the temperature of cocycle pipeline.These three temp probes are that collecting system main road and bypath system share.
The absorber plate that is coated with coating for selective absorption is selected in the inside of flat plate collector 13, can improve absorptivity, better the elevator system temperature.
The outer courage of solar water container 1 adopts common carbon steel board or the corrosion resistant alloy-steel plate of corrosion resistant plate, coated corrosion resistant layer, and inner bag adopts the food-grade corrosion resistant plate of environmentally-friendly sanitary, therebetween heat-insulation layer.Plate changes circulating pump 3 and provides power for the cold water cycle heat exchange.
The inner bag of heat eliminating medium case 19 and outer courage all adopt the common carbon steel board of coated corrosion resistant layer or corrosion resistant plate to make, and laminated heat-preserving thickness is not less than 10mm, and the volume of heat eliminating medium case 19 is not less than 1/2 of total system dielectric capacity.It is enough that the volume of heat eliminating medium case 19 is wanted, otherwise can occur lacking medium, after medium is heated, if the volume of heat eliminating medium case 19 is large not, can cause the total system medium to overflow in addition.
The anti-overheated panel solar hot-water heating system that the utility model provides by the temperature difference and solar water container temperature controlled circulation, is carried out the conversion operation of collecting system main road and first, second bypath system, thereby realizes anti-overheated purpose.The temperature difference is cocycle temp probe 14 measured temperatures and lower circulating temperature the poor of 12 measured temperatures of popping one's head in, and the upper limit is set as 5 ℃, and lower limit set is 2 ℃.Solar water container temp probe 24 water temperature of surveying is set as 60 ℃.When anti-overheated panel solar hot-water heating system operation, all gate valves all are in opening.
Before the anti-overheated panel solar hot-water heating system operation, need circulatory mediator is filled in system pipeline, and in heat eliminating medium case 19, inject the approximately medium of whole system volume 1/3, can not dally to guarantee collecting system bypass thermal-arrest circulating pump 21.The volume of heat eliminating medium case 19 is decided by the whole system dielectric capacity, selects 1/2 dielectric capacity to be advisable.For example, system needs medium 100L, and heat eliminating medium case 19 selects 50L to get final product so.
Utilize solar water container temp probe 24 to record water temperature in the solar water container 1, thereby control thermal-arrest circulating pump 21, the cocycle bypass magnetic valve 18 of the second bypath system, the lower circulation bypass magnetic valve 11 simultaneously start and stop of the first bypath system.At this moment, plate changes circulating pump 3 and does not join and open.
The plate that magnetic valve 7, cocycle main road magnetic valve 17 and plate change the circulatory system before the collecting system main road thermal-arrest circulating pump 8 in the collecting system main road, lower circulation main road pump changes circulating pump 3 and is controlled simultaneously by the temperature difference upper limit and solar water container temp probe 24 water temperature of surveying.When water temperature is lower than 60 ℃ of design temperatures, and reach 5 ℃ of the temperature difference upper limits this moment, the collecting system main road starts.Cocycle bypass magnetic valve 18, collecting system bypass thermal-arrest circulating pump 21, lower circulation bypass magnetic valve 11 are controlled by solar water container temp probe 24 water temperature of surveying, when water temperature is constant be 60 ℃ after, no matter the temperature difference how, the first and second bypath systems all must start.In this class situation, owing to being the heat that needs to discharge in the thermal-arrest circulation line, because need not the water in the water tank is carried out heat exchange, plate changes circulating pump 3 and does not start simultaneously.
The operation of collecting system main road: when the temperature difference reaches 5 ℃, and when solar water container temp probe 24 water temperature of surveying is lower than 60 ℃, magnetic valve 7, cocycle main road magnetic valve 17, plate change circulating pump 3 and start simultaneously before collecting system main road thermal-arrest circulating pump 8, the lower circulation main road pump, water in the solar water container 1 is heated, after solar water container temp probe 24 water temperature of surveying reached 60 ℃ or the temperature difference and is down to 2 ℃, above-mentioned 4 kinds of equipment were simultaneously out of service.If in running, solar water container temp probe 24 water temperature of surveying is not to 60 ℃, the temperature difference has but arrived lower limit, magnetic valve 7, cocycle main road magnetic valve 17 before the collecting system main road thermal-arrest circulating pump 8, lower circulation main road pump, that plate changes circulating pump 3 is out of service, after the heat collector thermal-arrest temperature difference reaches the upper limit, continue the operation heat exchange, until water temperature reaches 60 ℃.
The operation of anti-overheated bypath system: when solar water container temp probe 24 water temperature of surveying reaches 60 ℃, no matter the temperature difference how much, cocycle bypass magnetic valve 18, collecting system bypass thermal-arrest circulating pump 21, lower circulation bypass magnetic valve 11 move simultaneously, and plate changes circulating pump 3 and do not move.Because heat eliminating medium case 19 belongs to open type, at this moment move heats a large amount of in the medium and all can fall apart in atmosphere, when guaranteeing that flat plate collector 13 interior media obtain cooling off, can not exert an influence to plate type heat exchanger 5 yet.After hot water was finished, solar water container 1 interior meeting replenished cold water, if satisfy the water temperature requirement this moment, namely was lower than 60 ℃, and first, second bypath system is out of service.After the temperature difference reached the upper limit, main road brought into operation, and heating cold water is until water temperature reaches 60 ℃.Main road and the bypass of system run so forth, and realize anti-overheated purpose.
Each equipment control mode is summarized as follows:
1, magnetic valve 7, cocycle main road magnetic valve 17, plate change circulating pump 3 before collecting system main road thermal-arrest circulating pump 8, the lower circulation main road pump: the water temperature by the temperature difference upper limit and solar water container 1 is controlled simultaneously, and is indispensable.
2, collecting system bypass thermal-arrest circulating pump 21, lower circulation bypass magnetic valve 11, cocycle bypass magnetic valve 18: by the temperature control of solar water container 1.
Above-described only is preferred embodiment of the present utility model, does not limit to the utility model.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the utility model, can also make other equivalent modifications and improvement, all can realize the purpose of this utility model, all should be considered as protection domain of the present utility model.
Claims (7)
1. prevent overheated panel solar hot-water heating system for one kind, comprise that plate changes the circulatory system and collecting system main road, wherein the collecting system main road comprises plate type heat exchanger side medium outlet (25), the lower circulation of collecting system main road, flat plate collector (13), the cocycle of collecting system main road, cocycle main valve (23) and plate type heat exchanger side medium entrance (26), it is characterized in that, also comprise the first bypath system and the second bypath system, the lower circulation of described the first bypath system and collecting system main road is in parallel, and the cocycle of described the second bypath system and described collecting system main road is in parallel.
2. anti-overheated panel solar hot-water heating system according to claim 1 is characterized in that, described the first bypath system is formed by connecting with pipeline by lower circulation bypass gate valve (10) and lower circulation bypass magnetic valve (11).
3. anti-overheated panel solar hot-water heating system according to claim 1, it is characterized in that, described the second bypath system by cocycle bypass heat eliminating medium case pre-gate valve (15), cocycle bypass magnetic valve (18), heat eliminating medium case (19), cocycle bypass pump pre-gate valve (20), collecting system bypass thermal-arrest circulating pump (21) and cocycle bypass pump after check-valves (22) be formed by connecting with pipeline successively.
4. anti-overheated panel solar hot-water heating system according to claim 1, it is characterized in that, described plate changes the circulatory system and changes circulatory system pump pre-gate valve (2), plate by solar water container outlet (29), plate and change circulating pump (3), plate and change check-valves (4) behind the circulatory system pump, plate type heat exchanger water side entrance (28), plate type heat exchanger water side outlet (27) and solar energy water tank inlet (30) and be formed by connecting with pipeline successively.
5. anti-overheated panel solar hot-water heating system according to claim 1 is characterized in that, the inside of described flat plate collector (13) is the absorber plate that is coated with coating for selective absorption.
6. anti-overheated panel solar hot-water heating system according to claim 3, it is characterized in that, the inner bag of described heat eliminating medium case (19) and outer courage all adopt the common carbon steel board of coated corrosion resistant layer or corrosion resistant plate to make, laminated heat-preserving thickness is not less than 10mm, and the volume of heat eliminating medium case (19) is not less than 1/2 of total system dielectric capacity.
7. anti-overheated panel solar hot-water heating system according to claim 4, it is characterized in that, the outer courage of described solar water container adopts common carbon steel board or the corrosion resistant alloy-steel plate of corrosion resistant plate, coated corrosion resistant layer, and inner bag adopts the food-grade corrosion resistant plate of environmentally-friendly sanitary, therebetween heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320118264 CN203249415U (en) | 2013-03-15 | 2013-03-15 | Anti-overheating panel solar water heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320118264 CN203249415U (en) | 2013-03-15 | 2013-03-15 | Anti-overheating panel solar water heating system |
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| CN203249415U true CN203249415U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320118264 Expired - Fee Related CN203249415U (en) | 2013-03-15 | 2013-03-15 | Anti-overheating panel solar water heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148612A (en) * | 2013-03-15 | 2013-06-12 | 金川集团股份有限公司 | Overheating prevention flat plate solar water heating system |
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2013
- 2013-03-15 CN CN 201320118264 patent/CN203249415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148612A (en) * | 2013-03-15 | 2013-06-12 | 金川集团股份有限公司 | Overheating prevention flat plate solar water heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20160315 |