CN100587361C - Solar energy water heater - Google Patents
Solar energy water heater Download PDFInfo
- Publication number
- CN100587361C CN100587361C CN200610083411A CN200610083411A CN100587361C CN 100587361 C CN100587361 C CN 100587361C CN 200610083411 A CN200610083411 A CN 200610083411A CN 200610083411 A CN200610083411 A CN 200610083411A CN 100587361 C CN100587361 C CN 100587361C
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- Prior art keywords
- water
- valve
- pipe
- pipeline
- water tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 228
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims description 8
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 5
- 208000001034 Frostbite Diseases 0.000 abstract 2
- 241001481828 Glyptocephalus cynoglossus Species 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 14
- 230000002528 anti-freeze Effects 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 4
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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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
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
This invention discloses a sort of the soar water heater. It consists of the water tank, the heat collector. The infrastructure of the water bank connects with the water inlet of the heat collector bythe outlet pipe, the outlet port of the heat collector connects with the superstructure of the water tank by the return line, and it is fitted a water pump in the outlet pipe in this invention, the position of the heat collector in this invention is hyper-water tank in this invention, the lower position of the water pipe in this invention connects with the downcomer that the exit locates adown bythe three-port valve. This three-way valve consists of two valve, the first valve connects with the downcomer pipeline, the second valve connects with the outlet pipeline witch is between the downcomer and the water tank. When the three-port valve is electrified, the first valve closes and the second valve conducts. When the three-port valve is loss the current, the first valve conducts and the second valve closes. The soar water heater can remove the problem that it consumes the energy to prevent frostbite and stifled used the existing technique and it can obtain the effect in preventing frostbite and stifled in the estate of no electricity all the same.
Description
Technical field
The present invention relates to water heater, relate in particular to a kind of 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.
Please referring to Fig. 1, this illustrates the pipeline structure schematic diagram of the pressure-bearing solar water heater that once circulates general under the prior art.This solar water heater comprises water tank 101, has the inner bag 102 of direct water storage in the water tank 101, and the water tank bottom connects heat collector 104 water inlets by outlet pipe 107, and these heat collector 104 delivery ports connect water tank 101 by return pipe 108.Described outlet pipe 107 also is equipped with water pump 103 near the exit of described water tank 101; Temperature sensor 105 is installed in the heat collector 104.Simultaneously, the most significant end of described return pipe pipeline is equipped with air bleeding valve 106.The top of described inner bag 102 also has the water of making outlet pipe 109, and the hot water of water tank upper storage can flow out by this pipe; Water tank bottom has the into water inlet pipe 110 of cold water, and this water inlet pipe 110 is used to connect external water source.In addition, this solar water heater also has control elements such as controller, and the plurality of detection element.
The course of work of solar water heater shown in Figure 1 is as follows: when the water temperature that detects inner bag 102 is lower than certain predetermined temperature, when perhaps the water temperature of the water temperature of inner bag 102 and heat collector 104 differs some temperature, 103 work of controller control water pump, water pump 103 is gone into heat collector 104 with the hydraulic pressure of inner bag 102 bottoms, then flow into the top of inner bag 102 in the heat collector 104 through return pipe through the hot water of solar energy heating, inner bag 102 tops will increase the hot water through heating like this.After the water that the water in the pipeline of heat collector 104 is not heated was replaced, its temperature reduced; When being reduced to certain predetermined temperature, water pump 103 quits work, and this moment, heat collector 104 utilized solar energy to water heating in its pipeline.Above-mentioned circulation is constantly carried out, and just can constantly obtain hot water for using in water tank 101.
Pipeline froze stifled easily when the subject matter that above-mentioned solar water heater exists was winter.Because the heat collector 104 of solar water heater generally is positioned at outdoor, be lower than zero degree in temperature, and water heater does not have when in running order, the water that is exposed in the outdoor pipeline (comprising the pipeline of outlet pipe, return pipe and heat collector etc.) can be because temperature be crossed low and icing, cause and freeze stifledly, use to the user to bring inconvenience.
Under prior art, some solutions have been adopted at freezing stifled problem.
A solution under the prior art is: make solar water heater be in "on" position all the time, when heat collector senses water temperature when being lower than 4 ℃, make water pump 103 work, carry out forced circulation, make the water in the inner bag be full of heat collector and pipeline.Because it is indoor that the inner bag of water heater is in, and heat-insulation layer is arranged in the water tank, so the water temperature of inner bag is generally higher.So just can make and be always the higher water of temperature in the water heater pipeline, said method can guarantee the water in the pipeline can not freeze cause freeze stifled.
Another kind of solution under the prior art is: install electricity companion heating tape in water pipe additional, water temperature is crossed to hang down to cause and is frozen when blocking up in detecting pipeline, and it is stifled to avoid pipeline to freeze to the pipeline heating to start this electricity companion heating tape.
The shortcoming of above-mentioned solution is, must make water heater be in "on" position, in case outage just can't realize antifreeze stifled effect.
Summary of the invention
At above-mentioned defective, the technical problem that the present invention solves is, provide a kind of need not to switch on just can prevent that pipeline from freezing stifled solar water heater.
Solar water heater provided by the invention, comprise water tank, heat collector, the water tank bottom connects the heat collector water inlet by outlet pipe, the heat collector delivery port connects water tank upper by return pipe, on the described outlet pipe pipeline water pump is installed, the water inlet of described heat collector is higher than delivery port, and the position of described heat collector is higher than described water tank, connects the downward downcomer of outlet at the lower position of described outlet pipe by triple valve; This triple valve comprises two valves, and first valve is connected on the downcomer pipeline, and second valve is connected on the outlet pipe pipeline between downcomer and the water tank, and this triple valve gets when electric, first valve closing, the second valve conducting; During this triple valve dead electricity, the first valve conducting, second valve closing; By being communicated with communicating pipe, the mouth of pipe that this communicating pipe is connected with described return pipe is higher than the mouth of pipe that communicating pipe is communicated with described outlet pipe between described outlet pipe and the described return pipe; And the mouth of pipe that communicating pipe is connected with outlet pipe is on the outlet pipe pipeline between water pump and the heat collector; On this pipeline first check valve is installed, the pipeline of this first check valve is vertical with horizontal plane or approach vertically, makes the water in the pipeline flow to outlet pipe by this first check valve from return pipe with self gravitation communicating pipe.
Preferably, described first check valve employing sheet metal check valve or forward conduction pressure are smaller or equal to the check valve of 0.001Mpa.
Preferably, on the extreme higher position of described return pipe pipeline, air bleeding valve is installed.
Preferably, to the return pipe pipeline between described communicating pipe mouth of pipe, the water that makes in the pipeline is installed can only be to the check valve of water tank one-way flow at water tank.
Preferably, described triple valve is installed on the outlet pipe pipeline between described water pump and the water tank.
Preferably, on the outlet pipe pipeline between described water pump and the described triple valve filter is installed.
Preferably, the top of described water tank is equipped with and makes the water outlet pipe, and the water tank bottom is equipped with water inlet pipe.
Preferably, described water tank comprises inner bag, the shell of the direct water storage of innermost layer, and the heat-insulation layer between inner bag and shell
Solar water heater provided by the invention compared with prior art, can utilize the automatic emptying of gravity realization to the water storage in the pipeline, thereby realize antifreeze stifled.
Basic technical scheme of the present invention on the basis of existing technology, increased the downcomer that is positioned at lower position on the outlet pipe pipeline for solar water heater, has triple valve on this downcomer, make the conducting or close as required of this downcomer, thereby can utilize gravity that the water in the pipeline is discharged from this downcomer when needed.
In a preferred embodiment of the invention, further taked several measures, so that the water storage in the pipeline relies on gravity to discharge.Comprise increasing the communicating pipe that is communicated with outlet pipe and return pipe, make the water in the return pipe get back to outlet pipe this communicating pipe, thereby discharge by described downcomer by this communicating pipe.Also comprise heat collector is installed as heeling condition so that the water in its pipeline is discharged.
By the above-mentioned improvement to prior art, solar water appliance provided by the invention has following advantage:
1, this solar water heater can be eliminated the energy that prior art is antifreeze stifled consumption.
Because the antifreeze stifled principle of this solar water heater is to utilize gravity with the water emptying in the pipeline, need not power consumption.Therefore, this solar water heater has thoroughly been eliminated the power consumption of antifreeze stifled modes such as adopting electricity companion heating tape heating or forced circulation under the prior art, has good energy-saving effect.
2, solar water heater provided by the invention need not to be in all the time "on" position and just can reach antifreeze stifled effect.
Antifreeze stifled mode under the prior art all needs consumed power, therefore, and in order to realize antifreezely stifled needing solar water heater to be in "on" position all the time, if having a power failure or line fault then antifreeze stifled measure were lost efficacy.Solar water heater provided by the invention need not power consumption, and under off-position, can make triple valve be in the required state of draining automatically under the effect of back-moving spring or temperature-sensitive wax, thereby under cold situation, reach antifreeze stifled effect.
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 solar water heater structure schematic diagram 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 carries out some improvement and obtains on the described prior art of Fig. 1 basis.The part identical with Fig. 1 uses the label of Fig. 1 to illustrate among Fig. 2.The structure of this solar water heater is described below in conjunction with Fig. 2.
This solar water heater critical piece comprises water tank 101, heat collector 104, and other appurtenances.
Pipeline near the described outlet pipe 107 in the exit of described water tank 101 is equipped with water pump 103, and this water pump 103 can provide certain pressure, makes the water of this solar water heater can be in the pipeline cocycle between water tank 101 and the heat collector 104.
On the outlet pipe pipeline between water pump 103 and the water tank 101, be connected with the downward downcomer 206 of outlet by triple valve 201.This downcomer 206 should be installed in the lower position of outlet pipe, so that draining.Described triple valve 201 comprises first valve 2011 that is installed on described downcomer 206 pipelines, and is installed in second valve 2012 on outlet pipe 107 pipelines between downcomer 206 and the water tank 101.Has back-moving spring or temperature-sensitive wax in this triple valve 201.The state of triple valve 201 can be by the gain and loss electric control, and concrete state of a control is: when electric, under the effect of magnetic valve or heated temperature-sensitive wax, 2011 on first valve cuts out, 2012 conductings of second valve; During dead electricity, under the effect of the temperature-sensitive wax of back-moving spring or cooling, 2011 conductings of first valve, second valve 2012 is closed.Described downcomer 206 can directly be connected with pumping equipments such as sewers.
Be connected to filter 202 on the pipeline of the outlet pipe 107 between described water pump 103 and the described triple valve 201, this filter 202 is used for the impurity of water tank with strainer water outlet, in order to avoid blocking pipeline.
By being communicated with communicating pipe 205, the mouth of pipe that this communicating pipe 205 is connected with described return pipe 108 is higher than the mouth of pipe that is communicated with described outlet pipe 107 between described outlet pipe 107 and the described return pipe 108; And the nozzle position that communicating pipe 205 is connected with outlet pipe 107 is between water pump and heat collector.
On described communicating pipes 205 pipelines first check valve 203 is installed, this first check valve 203 makes water flow to outlet pipe 107 from return pipe 108.This first check valve 203 should be selected the check valve of conducting pressure smaller or equal to 0.001Mpa, so that the water in the return pipe just can flow back to outlet pipe from return pipe only with the gravity of self.This check valve also can use metal chip check valve, and this kind check valve is under the effect of gravity, and sheet metal falls open, thereby makes the pipeline conducting; If opposite hydraulic pressure is arranged, then with sheet metal jack-up, pipeline is closed, thereby play the effect of unidirectional conducting.Make this first check valve, 203 operate as normal owing to need to rely on gravity, so, this first check valve 203 is with its internal duct optimum state that is installed as perpendicular to the ground, also can adopt other setting angle (as approaching vertical angle), but must make this first check valve 203 can utilize the gravity of water or sheet metal (when adopting metal chip check valve) to obtain unidirectional conducting state.
On return pipe 108 pipelines between described communicating pipe 205 and the water tank 101, second check valve 204 is installed also, the effect of this second check valve 204 is to make backwater can only flow to water tank 101, and the water of water tank 101 can not flow out by return pipe.The conducting of this second check valve 204 depends on the pressure that produces when described water pump 103 turns round.
On the pipeline extreme higher position of described return pipe 108, air bleeding valve 106 is installed, can flow smoothly thereby its role is to make in the return pipe 108 water can obtain atmospheric pressure, in addition, this air bleeding valve 106 can also be discharged the air that exists in the pipeline.
This solar water heater also has devices such as appliance controling element such as computer control panel (figure do not show) and detecting element, electric wiring, said apparatus is not an inventive point of the present invention, and under prior art, those skilled in the art can realize in many ways, therefore do not add narration at this.When below operation principle being described, will not introduce the operation principle of relevant controlling element, detecting element equally.
Below in conjunction with above-mentioned structure introduction, the course of work of this solar water heater is described to solar water heater.
During this solar water heater work, when the water temperature that detects inner bag 102 is lower than certain predetermined temperature, when perhaps the water temperature of the water temperature of inner bag 102 and heat collector 104 differed some temperature, 103 work of computer control panel control water pump provided the pressure that circulates for the water in the pipeline.Under effect under this pressure, the water of water tank 101 bottoms flows to heat collector 104 by outlet pipe 107.This moment, triple valve 201 was a "on" position, its second valve 2012 is opened, first valve 2011 is closed, and therefore the water that flows out from water tank 101 can flow out by second valve 2012 of triple valve 201, and can not flow out by downcomer from first valve 2011 of triple valve 201.Simultaneously, because first check valve 203 was installed on communicating pipe, can stop water outlet directly to flow to return pipe 108 by communicating pipe 205.Because the hydraulic pressure of outlet pipe 107 is greater than the hydraulic pressure of return pipe 108 at this moment, therefore, the water of return pipe 108 can not flow to outlet pipe 107 by first check valve 203 yet again.By above-mentioned circulation, the cold water of water tank 101 bottoms is drawn out of, and the pipeline of process heat collector 104 is heated, and the water after the heating flows to the top of water tank 101 through second check valve 204 by return pipe 108.Above-mentioned circulation finished the heating that utilizes the water in 104 pairs of water tanks 101 of heat collector, and heated water will place the top of water tank 101.The user can use the hot water on water tank 101 tops by the water outlet pipe 109 that makes on water tank 101 tops.
Freeze stifled protection in order to realize visiting, this solar water heater can be realized automatic emptying under the control of computer control panel, below the process of the automatic emptying of explanation.
When the heat collector temperature was reduced to uniform temperature (as four degrees celsius), the computer control panel is judged need do anti-frost protection.At this moment, water pump 103 is not worked, and under the control of computer control panel, triple valve 201 dead electricity are opened first valve 2011 of triple valve 201, and second valve 2012 is closed.At this moment, because heat collector 104 is above water tank 101, and the pipeline of return pipe 108 is communicated with atmosphere by air bleeding valve 106, and the water in water in return pipe 108 pipelines and heat collector 104 pipelines flows back to triple valve 201 under gravity and atmospheric pressure effect, flow to sewer through downcomer 206.Wherein, so heat collector 104 installation because employing is tilted is current direction heat collector 104 delivery ports in its pipeline.Water in described thermal-arrest gas 104 pipelines and the water in return pipe 108 pipelines all can flow to outlet pipe through first check valve 203 by communicating pipe 205, and finally flow to sewer by triple valve 201.Wherein, described first check valve 203 is owing to select check valve or the metal chip check valve of conducting pressure smaller or equal to 0.001Mpa, and adopt vertical or near mounting means such as vertical, therefore, this first check valve 203 can place an order to conducting in the gravity effect, makes the current direction outlet pipe of return pipe.Same, 107 high-end water are also owing to the gravity reason flows out by triple valve 201 in the described outlet pipe.Water in the described water tank 101, then owing to second valve 2012 of triple valve 201 is closed, and the reverse shutoff effect of second check valve 204, can from water tank 101, not flow out.
Except that the mode of above-mentioned computer control panel control, special-purpose purge button also can be set, after this purge button is pressed, can make triple valve 201 be in the state of above-mentioned dead electricity, can reach effect equally with the whole emptyings of water in the pipeline.
The major advantage of this solar water heater also is, when this solar water heater dead electricity, can be with the automatic emptying of the water in the pipeline, thus prevent to freeze stifled.At this moment, because the solar water heater dead electricity, triple valve 201 is dead electricity also.Then triple valve 201 is in 2011 conductings of first valve under the effect of back-moving spring or temperature-sensitive wax, second valve, 2012 closing state, thus as mentioned above, the water emptying in the pipeline can be played antifreeze effect.
In sum, the principle of this embodiment is, when this solar water heater dead electricity, utilizes the effect of gravity, and the water in this pipelines of solar water heater is discharged by downcomer, thereby avoids that water causes freezing of pipeline stifled in the pipeline.Its key is that triple valve can be in suitable state automatically when dead electricity, and the passage that the water in the pipeline is discharged is provided.In addition, it is also important that, the installation design of whole solar water heater all guarantees to make ducted water to flow out smoothly under the effect of gravity, mainly be between return pipe and outlet pipe, to be provided with communicating pipe, this communicating pipe cooperates with check valve on it, and the passage of discharge is provided for the water in heat collector and the return pipe pipeline.
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 (8)
1, a kind of solar water heater, comprise water tank, heat collector, the water tank bottom connects the heat collector water inlet by outlet pipe, the heat collector delivery port connects water tank upper by return pipe, on the described outlet pipe pipeline water pump is installed, it is characterized in that, the water inlet of described heat collector is higher than delivery port, the position of described heat collector is higher than described water tank, connects the downward downcomer of outlet at the lower position of described outlet pipe by triple valve; This triple valve comprises two valves, and first valve is connected on the downcomer pipeline, and second valve is connected on the outlet pipe pipeline between downcomer and the water tank, and this triple valve gets when electric, first valve closing, the second valve conducting; During this triple valve dead electricity, the first valve conducting, by being communicated with communicating pipe, the mouth of pipe that this communicating pipe is connected with described return pipe is higher than the mouth of pipe that communicating pipe is communicated with described outlet pipe between second valve closing, described outlet pipe and described return pipe; And the mouth of pipe that communicating pipe is connected with outlet pipe is on the outlet pipe pipeline between water pump and the heat collector; On this pipeline first check valve is installed, the pipeline of this first check valve is vertical with horizontal plane or approach vertically, makes the water in the pipeline flow to outlet pipe by this first check valve from return pipe with self gravitation communicating pipe.
2, solar water heater according to claim 1 is characterized in that, described first check valve employing sheet metal check valve or forward conduction pressure are smaller or equal to the check valve of 0.001Mpa.
3, solar water heater according to claim 2 is characterized in that, on the extreme higher position of described return pipe pipeline air bleeding valve is installed.
4, solar water heater according to claim 1 is characterized in that, to the return pipe pipeline between described communicating pipe mouth of pipe, the water that makes in the pipeline is installed can only be to the check valve of water tank one-way flow at water tank.
According to each described solar water heater of claim 1 to 4, it is characterized in that 5, described triple valve is installed on the outlet pipe pipeline between described water pump and the water tank.
6, solar water heater according to claim 5 is characterized in that, on the outlet pipe pipeline between described water pump and the described triple valve filter is installed.
7, solar water heater according to claim 5 is characterized in that, the top of described water tank is equipped with and makes the water outlet pipe, and the water tank bottom is equipped with water inlet pipe.
8, solar water heater according to claim 7 is characterized in that, described water tank comprises inner bag, the shell of the direct water storage of innermost layer, and the heat-insulation layer between inner bag and shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610083411A CN100587361C (en) | 2006-05-30 | 2006-05-30 | Solar energy water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610083411A CN100587361C (en) | 2006-05-30 | 2006-05-30 | Solar energy water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101082453A CN101082453A (en) | 2007-12-05 |
| CN100587361C true CN100587361C (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610083411A Expired - Fee Related CN100587361C (en) | 2006-05-30 | 2006-05-30 | Solar energy water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100587361C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588348B (en) * | 2016-02-18 | 2018-03-27 | 南宁市新双源节能科技有限责任公司 | Solar water heater full-automatic energy-saving controller |
| CN105823221B (en) * | 2016-05-23 | 2018-12-21 | 珠海格力电器股份有限公司 | The water discharge control method of water heater, device and system |
| CN111820669B (en) * | 2020-07-06 | 2024-01-09 | 河北晚安家居科技有限公司 | Multilayer wave spring pad |
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2006
- 2006-05-30 CN CN200610083411A patent/CN100587361C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101082453A (en) | 2007-12-05 |
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