CN101089510A - Secondary circulation solar water heater - Google Patents
Secondary circulation solar water heater Download PDFInfo
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- CN101089510A CN101089510A CNA2006100875831A CN200610087583A CN101089510A CN 101089510 A CN101089510 A CN 101089510A CN A2006100875831 A CNA2006100875831 A CN A2006100875831A CN 200610087583 A CN200610087583 A CN 200610087583A CN 101089510 A CN101089510 A CN 101089510A
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- water
- inner bag
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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
- Y02E10/44—Heat exchange systems
Abstract
The present invention discloses a secondary circulating solar water heater. It includes an internal container and a collector. The lower portion of said internal container is connected with water inlet of collector by means of water outlet pipe; the water outlet of said collector is connected with upper portion of said internal container by means of water-returning pipe; on the pipeline of the described water outlet pipe, in the position close to internal container a water pump is mounted; in the internal container the water or other heat exchange medium is held; said water pump can be used for pumping heat exchange medium in the lower portion of internal container into the described collector, the heat exchange medium is heated by collector, then is back-flowed into the upper portion of said internal container; in the internal container a coiled pipe is mounted, the water inlet of said coiled pipe is positioned in the bottom portion of said internal container, and is connected with external water source outside of internal container by means of water inlet pipe, and the water outlet of said coiled pipe is positioned in the upper portion of said internal container. Said invention also provides the working principle of said secondary circulating solar water heater and its concrete operation method.
Description
Technical field
The present invention relates to water heater, relate in particular to a kind of secondary circulation solar water heater.
Background technology
Extensively utilizing renewable resources such as wind energy, solar energy is the important content of building a conservation-minded society, and solar water heater is exactly a kind of important way of utilizing solar energy.
Solar water heater under the prior art is divided into circulation line type solar water heater and secondary cycle pipeline type solar water heater.
The characteristics of secondary circulation solar water heater are to have the heat exchange circulation and make two separate circulatory systems of water circulation, the heat exchange circulation obtains heat from solar thermal collector, by the coil pipe that is installed in the water tank heat transferred is made water in the water circulation, make water obtain heating.
Please referring to Fig. 1, this illustrates the pipeline structure schematic diagram of the general secondary cycle pressure-bearing solar water heater of prior art.
The heat exchange closed circuit of this solar water heater mainly comprises coil pipe 112 and heat collector 104.Described coil pipe 112 is installed in the inner bag 102 of water tank 101, the delivery port of its lower end is by the water inlet of heat exchange recycling outlet 107 connection heat collectors 104, and the delivery port of described heat collector 104 loops back the water inlet that water pipe 108 connects coil pipes 112 upper ends by heat exchange.On the pipeline of described heat exchange recycling outlet 107 near the lower end of described coil pipe 112, water pump 103 is installed.Simultaneously, on the pipeline of this heat exchange recycling outlet 107, between described water pump 103 and heat collector 104, safety valve 111 is installed; Between this safety valve 111 and the described water pump 103 expansion tank 106 is installed also, and the liquid-filling valve 113 that is used for adding to the heat exchange circulation line heat transferring medium.In addition, heat collector 104 also is equipped with temperature sensor 105.This Tai-Yang can water heater the use water-flow circuit mainly comprise the inner bag 102 of water tank 101, and be installed in inner bag 101 tops make water delivery port 109, and be installed in the water inlet 110 that inner bag 102 bottoms are connected with external water source.
The course of work of above-mentioned secondary circulation solar water heater is as follows.Be full of heat transferring medium in the pipeline of described heat exchange circulation, this heat transferring medium can be water or other liquid or solution.When the pipeline temperature that the pipeline temperature that detects heat collector 104 when temperature sensor 105 is higher than certain value than the pipeline temperature of coil pipe 112 or detects heat collector is higher than a setting, described water pump 103 runnings, make the heat transferring medium in the heat exchange circulation line begin circulation, heat transferring medium is taken away heat through the pipeline of heat collector 104, and make heated heat transferring medium flow into coil pipe 112 by circulation, by coil pipe 112 with the water that makes in the described inner bag 102 of the heat transferred that circulatory mediator comprised.The safety valve 111 in this circulation and the effect of expansion tank 106 be for the liquid medium in the closing pipe line owing to the Volume Changes that cold and hot variation produces provides spatial margin.In this water heater, the water inlet pipe 110 of inner bag 102 bottoms advances cold water, and the water in the inner bag 102 heats up through obtaining with coil pipe 112 heat exchange, and the user takes hot water by the water outlet pipe 109 that makes on inner bag 102 tops.
There are some defectives in above-mentioned solar water heater under the prior art.
At first, the heat transferring medium of above-mentioned secondary circulation solar water heater only plays the heat exchange effect, can't store the heat that obtains.
Though solar energy has continuous utilization or recycling, advantage such as have a very wide distribution,, have equally and disperse on the time and space to distribute, should not concentrate the shortcoming that forms great power.The relative electric energy of power of solar energy etc. is difficult to control, can not obtain lot of energy at short notice, therefore, uses solar energy to need energy storage mechanism preferably, with the solar energy in the long period section store supply and demand will the time use.Under the prior art, the effect of heat transferring medium only is heat-shift, and can't stored energy.Water in the inner bag is owing to need be used for bathing, and temperature is raised to the 40-50 degree and just can not raises again, therefore can't play the effect of storing heat preferably.
Next, the secondary circulation solar water heater pipeline under the prior art freezes stifled problem and should not solve.
Under the prior art, therefore pipeline relative closure in the heat exchange circulation, must be full of heat transferring medium in the pipeline, can't be with the heat transferring medium emptying in the outdoor pipeline, the water in these pipelines can produce in the winter time freeze stifled.At present, the stifled problem of freezing in the heat exchanging pipe adopts the mode that adds anti-icing fluid to realize.Can obtain antifreezing effect preferably though add anti-icing fluid in heat transferring medium, anti-icing fluid is chemical substance, and cost is higher, and if the leakage meeting environment is impacted.
Summary of the invention
At above-mentioned defective, the technical problem that the present invention solves is that a kind of secondary circulation solar water heater is provided, and the heat transferring medium of this solar water heater has the effect of heat exchange and energy storage simultaneously, thereby the characteristics that can adapt to solar energy obtain result of use preferably.
Preferred version of the present invention can also make the automatic emptying of heat transferring medium in the exterior line of solar water heater, and it is stifled to avoid pipeline to freeze under the situation of not adding anti-icing fluid.
Secondary circulation solar water heater provided by the invention, comprise inner bag, heat collector, the inner bag bottom connects the heat collector water inlet by outlet pipe, the heat collector delivery port connects inner bag top by return pipe, position near inner bag on the described outlet pipe pipeline is equipped with water pump, fill water or other heat transferring mediums in the inner bag, this water pump can pump to the heat transferring medium of inner bag bottom described heat collector, flow back to the top of described inner bag through the heat transferring medium after the heat collector heating, coil pipe is installed in the inner bag, the water inlet of this coil pipe is positioned at the bottom, and connects the outer external water source of inner bag by water inlet pipe; The delivery port of this coil pipe is positioned at top, leads to the inner bag outside by making the water outlet pipe; The water of external water source flows into this coil pipe, the heat transferring medium draw heat in coil pipe from inner bag, and the water after the intensification flows out from the hot water outlet pipe on coil pipe top.
Preferably, described return pipe is equipped with air bleeding valve, and this air bleeding valve installation site is higher than the extreme higher position of return pipe.
Preferably, described inner bag top has the water injection pipe that adds heat transferring medium to inner bag, and the gate valve of control conducting is installed on this water injection pipe pipeline; Described inner bag top also has overfall.
Preferably, described inner bag bottom is equipped with heater.
Preferably, described heat collector is equipped with first temperature sensor of measuring the pipeline water temperature, described water inlet pipe is equipped with second temperature sensor that detects the coil pipe inlet water temperature near the position of coil pipe import, and described inner bag is equipped with the three-temperature sensor of measuring the inner bag heat exchange medium temperature.
Preferably, described water inlet pipe is equipped with the magnetic valve of control water inlet near the position of inner bag, when the temperature of described heat transferring medium is crossed when low this closed electromagnetic valve.
Preferably, described water inlet pipe has the arm that direct connection makes the water outlet pipe.
Preferably, described heat collector installation site is higher than described inner bag.
Preferably, described heat collector tilts to install, and its water inlet position is higher than delivery port.
Solar water heater provided by the invention compared with prior art, has following advantage.
1, basic technical scheme of the present invention has been set up energy storage mechanism, and energy characteristics that can better utilization solar energy makes energy can concentrate acquisition when needed.
Compared with prior art, basic technical scheme of the present invention adopts the mode of inner bag and heat collector communication loop, uses the water of storing in the inner bag (or other liquid) as heat transferring medium and energy-accumulating medium.Because the hot water of storing in the inner bag is not directly used in bathing, therefore, water temperature can be elevated to higher temperature, thereby store more energy.Like this, can remedy the time dispersiveness of solar energy, obtain result of use preferably.Water has good energy storage effect as the material of specific heat capacity maximum in the common material, uses in the time of can storing more heat energy worker and need.
2, preferred version of the present invention has further been taked the measure of pipeline emptying on the basis of above-mentioned basic scheme, can avoid the winter pipeline to freeze stifled.
The prior art lower pipeline is full of by heat transferring medium substantially, can't adopt the emptying mode antifreeze stifled, can only realize antifreeze stifled by add anti-icing fluid in pipeline.Solar water heater provided by the invention adopts inner bag storage heat transferring medium, has bigger empty space, can adopt the emptying mode antifreeze stifled.This kind mode is compared with adopting the anti-icing fluid mode, and antifreeze stifled better effects if is little to ambient influnence.
3, therefore the present invention, does not need auxiliary elements such as expansion tank, safety valve, liquid-filling valve are installed owing to do not need to adopt enclosed heat exchange circulation line, provides cost savings.
Following according to technique scheme, provide the preferred embodiments of the invention, to describe preferable implementation of the present invention and principle in detail.
Description of drawings
Fig. 1 is the secondary circulation solar water heater structural representation of prior art;
Fig. 2 is the structural representation of first embodiment of the invention.
The specific embodiment
Please, be the first embodiment of the invention structural representation referring to Fig. 2.This embodiment compares with the described prior art of Fig. 1, with the part of coil pipe as the use water-flow circuit, and with the part of inner bag as the heat exchange closed circuit, thereby play the energy storage effect.
The structure of this solar water heater is described below in conjunction with Fig. 2.
This secondary circulation solar water heater has the heat exchange closed circuit and uses water-flow circuit.Described heat exchange closed circuit is used for obtaining and stores from the obtainable heat of the sun, and detections such as temperature sensor on this loop and the pipeline and computer control panel, control element are formed collecting system.Described use water-flow circuit provides hot water to the user, and the elements such as magnetic valve on this loop and the pipeline form hot-water heating system.
Described heat exchange closed circuit comprises non-pressure-bearing inner bag 202, water pump 203, heat collector 204, air bleeding valve 206, temperature sensor and respective line.
Described non-pressure-bearing inner bag 202 is installed in the water tank 201, and this non-pressure-bearing inner bag 202 has overfall, and this non-pressure-bearing inner bag 202 is communicated with atmosphere, forms non-pressure-bearing inner bag form.Under the recurrent state, the water of heat collector 204 can not be back under the gravity effect in the non-pressure-bearing inner bag 202.This non-pressure-bearing inner bag top has water injection pipe 214, is used to receive outside water filling.Have gate valve 213 on the described water injection pipe 214, be used to control the water filling of this water injection pipe 214.The bottom of this non-pressure-bearing inner bag 202 has heater 217, and this heater 217 is an electric heater, is used for providing when the water temperature of non-pressure-bearing inner bag 202 can't reach requirement auxiliary heating source.This non-pressure-bearing inner bag 202 also is equipped with three-temperature sensor 216, is used to detect the water temperature of non-pressure-bearing inner bag 202.
Described heat collector 204 can be flat plate collector or heat pipe type heat collector, and above-mentioned heat collector can guarantee that heat collector water can all flow out.The water inlet of heat collector 204 is higher than delivery port, and the water that enters heat collector just can all be flowed out under the gravity effect.First temperature sensor 205 is installed on heat collector 204 tube walls, is used to detect the pipeline water temperature of heat collector 204.
The bottom of described non-pressure-bearing inner bag 202 is by the water inlet of outlet pipe 207 connection heat collectors 204, and the delivery port of described heat collector 204 connects the top of non-pressure-bearing inner bag 202 by return pipe 108.On the installation site, the setting height(from bottom) of described heat collector 204 is higher than described inner bag 202.
Near on the pipeline of described non-pressure-bearing inner bag 202, water pump 203 is installed at described outlet pipe 207, the effect of this water pump 203 is that to the heat exchange closed circuit provides circulation power especially the water with non-pressure-bearing inner bag 202 bottoms is extracted in heat collector 204 pipelines.For the water of inner bag 202 bottoms being extracted into heat collector 204, should guarantee that this water pump 203 has enough lifts.
This collecting system also has control devices such as computer control panel, because it is not difference with the prior art part of the present invention, and the person skilled of this area can realize easily according to the explanation to present embodiment, so refuse other explanation at this.
Below in conjunction with the pipeline introduction of above-mentioned thermal-arrest closed circuit, the course of work of collecting system is described.
Described computer control panel obtains to detect the pipeline temperature that obtains by described first temperature sensor 205, when this temperature is higher than certain value, when perhaps this temperature is higher than some the spending of non-pressure-bearing inner bag 202 water temperatures of three-temperature sensor 216 detection acquisitions, 203 runnings of computer control panel control water pump, the water of described non-pressure-bearing inner bag 202 bottoms is pumped to by outlet pipe 207 in the pipeline of described heat collector 204, through flow into the top of inner bag 202 behind the pipeline of heat collector 204 from return pipe 208.Because heat collector 204 pipelines have very high temperature, therefore, heat absorption heats up behind the hot water of inner bag 202 bottoms process heat collector 204 pipelines, becomes hot water and injects inner bag 202.By the above-mentioned cyclic process of several times, will store up full hot water in the inner bag 202, said process its essence is with conversion of solar energy to be the heat energy and the storage of water from the angle of power conversion.Because in this solar water heater, directly do not use the hot water in the inner bag 202, therefore, water temperature can be heated to very high, just stores more energy.
The course of work of above-mentioned collecting system is adorned the heat energy that turns to water with solar energy, and the hot water that needs to use then needs to obtain by going out hot-water heating system.Below introduce out the structure and the operation principle of hot-water heating system.
Go out hot-water heating system and mainly comprise magnetic valve 218, coil pipe 212, second temperature sensor 217, water inlet pipe 210, hot water outlet pipe 209.
Described coil pipe 212 is these core parts that go out hot-water heating system, and the hot water that this coil pipe 212 places inner bag 202 to be stored, the water inlet of this coil pipe are positioned at the bottom, by the external water source outside the described water inlet pipe 210 connection inner bags 202.The delivery port of this coil pipe 212 is positioned at top, leads to inner bag 202 outsides by the described water outlet pipe 209 that makes, and hot water outwards is provided.
Described water inlet pipe 210 is equipped with magnetic valve 218 near on the pipelines of described inner bag 202, and this magnetic valve 218 is used to control the inflow of the water of external water source, reaches the purpose that control makes the water water temperature.
On the pipeline of described water inlet pipe 210 near inner bag 202 second temperature sensor 219 is installed, is used to detect the pipeline temperature of water inlet pipe 210, be used for control and make the water water temperature.
Described water inlet pipe 210 also has a branch road, and this branch road directly is connected junction with hot water outlet pipe 209, then provides water to the user.By the suitable mixing of hot and cold water, the user can obtain temperature required water.
This groundwork process that goes out hot-water heating system is, the water of external water source enters described coil pipe 212 by described water inlet pipe 210, because coil pipe 212 is placed in the inner bag 202, be full of water around it with higher temperature, flow through water in the coil pipe 212 constantly from absorbing heat on every side, temperature raises gradually.And finally, uses by water outlet pipe 209 for the user from being flowed out.
In actual use, the water temperature of the inner bag 202 that detects by three-temperature sensor 216, and the situations such as volume of inner bag 202 can calculate the user by mixing the bathing time of the waters that obtain 40 degree.If can't obtain the water of 40 degree, then magnetic valve 218 cuts out; If can obtain 40 degree waters, then magnetic valve is opened, and the user can begin water.
When the user needs water, and can't obtain required water temperature the time, also can heat, thereby obtain the water of proper temperature fast by the water of 217 pairs of inner bags 202 of heater.
In this solar water heater, because the position of described heat collector 204 is higher than the position of water tank 201, and the water inlet of heat collector 201 is higher than delivery port, therefore, water in the pipeline is under the gravity effect, can be back to automatically in the inner bag 202,, therefore freeze stifled phenomenon and can not take place because the water in the pipeline is drained.
In the above-described embodiments, adopt water as heat transferring medium, but in fact can adopt other liquid or solution as heat transferring medium.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1, a kind of secondary circulation solar water heater, comprise inner bag, heat collector, the inner bag bottom connects the heat collector water inlet by outlet pipe, the heat collector delivery port connects inner bag top by return pipe, position near inner bag on the described outlet pipe pipeline is equipped with water pump, fill water or other heat transferring mediums in the inner bag, this water pump can pump to the heat transferring medium of inner bag bottom described heat collector, flow back to the top of described inner bag through the heat transferring medium after the heat collector heating, it is characterized in that, coil pipe is installed in the inner bag, and the water inlet of this coil pipe is positioned at the bottom, and connects the outer external water source of inner bag by water inlet pipe; The delivery port of this coil pipe is positioned at top, leads to the inner bag outside by making the water outlet pipe; The water of external water source flows into this coil pipe, the heat transferring medium draw heat in coil pipe from inner bag, and the water after the intensification flows out from the hot water outlet pipe on coil pipe top.
2, secondary circulation solar water heater according to claim 1 is characterized in that, described return pipe is equipped with air bleeding valve, and this air bleeding valve installation site is higher than the extreme higher position of return pipe.
3, secondary circulation solar water heater according to claim 1 and 2 is characterized in that, described inner bag top has the water injection pipe that adds heat transferring medium to inner bag, and the gate valve of control conducting is installed on this water injection pipe pipeline; Described inner bag top also has overfall.
4, secondary circulation solar water heater according to claim 3 is characterized in that, described inner bag bottom is equipped with heater.
5, secondary circulation solar water heater according to claim 1 and 2, it is characterized in that, described heat collector is equipped with first temperature sensor of measuring the pipeline water temperature, described water inlet pipe is equipped with second temperature sensor that detects the coil pipe inlet water temperature near the position of coil pipe import, and described inner bag is equipped with the three-temperature sensor of measuring the inner bag heat exchange medium temperature.
6, secondary circulation solar water heater according to claim 1 and 2 is characterized in that, described water inlet pipe is equipped with the magnetic valve of control water inlet near the position of inner bag, when the temperature of described heat transferring medium is crossed when low this closed electromagnetic valve.
7, secondary circulation solar water heater according to claim 1 and 2 is characterized in that, described water inlet pipe has the arm that direct connection makes the water outlet pipe.
8, secondary circulation solar water heater according to claim 1 and 2 is characterized in that, described heat collector installation site is higher than described inner bag.
9, secondary circulation solar water heater according to claim 8 is characterized in that, described heat collector tilts to install, and its water inlet position is higher than delivery port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100875831A CN101089510B (en) | 2006-06-15 | 2006-06-15 | Secondary circulation solar water heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100875831A CN101089510B (en) | 2006-06-15 | 2006-06-15 | Secondary circulation solar water heater |
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| CN101089510A true CN101089510A (en) | 2007-12-19 |
| CN101089510B CN101089510B (en) | 2010-12-08 |
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| CN2006100875831A Active CN101089510B (en) | 2006-06-15 | 2006-06-15 | Secondary circulation solar water heater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062912A (en) * | 2013-01-20 | 2013-04-24 | 常州佳讯光电产业发展有限公司 | Solar cooking device |
| CN104006552A (en) * | 2013-02-27 | 2014-08-27 | 海尔集团公司 | Solar water heater with independent heat exchange module |
| CN105737398A (en) * | 2016-02-28 | 2016-07-06 | 山东省水利科学研究院 | Intelligent greenhouse constant-temperature water supply equipment |
| CN108518782A (en) * | 2018-06-08 | 2018-09-11 | 银川雷升太阳能有限公司 | A kind of cooling/warming system of solar energy integration air source heat pump |
| CN117091302A (en) * | 2023-09-08 | 2023-11-21 | 江苏汇励丰节能环保科技有限公司 | Remote intelligent control system and control method for solar heat collection |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111688C (en) * | 1999-06-01 | 2003-06-18 | 方俊杰 | Forced circulation type water circulation control method for solar energy water heater |
| CN2628954Y (en) * | 2003-06-27 | 2004-07-28 | 云南一通工贸有限公司 | Secondary circulating solar water heater |
| CN2670839Y (en) * | 2004-01-05 | 2005-01-12 | 黄继昌 | Solar water heater |
| CN2725800Y (en) * | 2004-09-08 | 2005-09-14 | 连云港市太阳雨热水器制造有限公司 | Solar water heater |
| CN201014799Y (en) * | 2006-12-09 | 2008-01-30 | 海尔集团公司 | Secondary circulation solar water heater |
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2006
- 2006-06-15 CN CN2006100875831A patent/CN101089510B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062912A (en) * | 2013-01-20 | 2013-04-24 | 常州佳讯光电产业发展有限公司 | Solar cooking device |
| CN104006552A (en) * | 2013-02-27 | 2014-08-27 | 海尔集团公司 | Solar water heater with independent heat exchange module |
| CN105737398A (en) * | 2016-02-28 | 2016-07-06 | 山东省水利科学研究院 | Intelligent greenhouse constant-temperature water supply equipment |
| CN108518782A (en) * | 2018-06-08 | 2018-09-11 | 银川雷升太阳能有限公司 | A kind of cooling/warming system of solar energy integration air source heat pump |
| CN117091302A (en) * | 2023-09-08 | 2023-11-21 | 江苏汇励丰节能环保科技有限公司 | Remote intelligent control system and control method for solar heat collection |
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| CN101089510B (en) | 2010-12-08 |
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