CN102128505B - Emptying device for solar water heater - Google Patents
Emptying device for solar water heater Download PDFInfo
- Publication number
- CN102128505B CN102128505B CN 201110085938 CN201110085938A CN102128505B CN 102128505 B CN102128505 B CN 102128505B CN 201110085938 CN201110085938 CN 201110085938 CN 201110085938 A CN201110085938 A CN 201110085938A CN 102128505 B CN102128505 B CN 102128505B
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- water
- water heater
- solar water
- surge chamber
- river
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 173
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 239000012774 insulation material Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses an emptying device for a solar water heater, which comprises a buffer chamber, and the buffer chamber is communicated with a water inlet pipe and a water outlet pipe; the top of the buffer chamber is fixed at a water port of a water tank of a solar water heater and provided with a water outlet, and the water outlet is provided with a closed valve; and the buffer chamber is also provided with an extension tube, and the extension tube stretches into the water tank of the solar water heater and extends to the top of the water tank. After the water stored in the water pipes is emptied by using the emptying device disclosed by the invention, the water flowing from the water pipes is the hot water in the solar water heater directly, which is convenient for customers to use; no water is stored in the emptied water pipes, thereby avoiding the occurrence of freezing and cracking of water pipes because water is stored in the water pipes, and extending the service time of the water pipes; an air plug of the emptying device is arranged in the buffer chamber, and after the water in the buffer chamber is emptied, no water is stored in the buffer chamber, thereby avoiding the occurrence of phenomenon that the closed valve is soaked in water for a long time, and then extending the service time of the closed valve; and because the closed valve can be controlled in a plurality of control modes, customers are convenient to choose.
Description
Technical field
The present invention relates to solar water heater, relate in particular to a kind of solar water heater emptier.
Background technology
Solar water heater is owing to possess energy-conserving and environment-protective, the characteristic such as easy to use, selected by increasing family, although solar water heater provides greatly convenient to people's life, some problems that in use occur also are with to the user and are served puzzlement.
Northern area is cold winter, because some solar water heaters do not possess emptier, ducted water does not drain, and often frost crack pipe can occur; Possessed in the solar water heater of emptier at some, because the design defect of emptier although ducted water can be drained, often is frozen between solar energy delivery port and the exhaust-valve; Also have some exhaust-valves to adopt magnetic valve to make the main body of exhaust-valve, this method has been grown service time, seal is worn out and the leakage of generation hot water.
A kind of solar energy water heater pipe emptier of the applicant is disclosed in Chinese utility model patent ZL200920225286.8, utilize an extension that extends to tank top, the bottom of extension offers the lower mouth of a river, place, the lower mouth of a river is provided with the pneumatic means at the lower mouth of a river of sealing, this method has easy realization simple in structure, and emptying effective characteristics are during still lower water, gas in the extension is sneaked in the water easily, causes lower water obstructed.
People are when using solar water heater, modal problem is, the tap of fetching boiling water, the water that is flowed out by water heater is not warm, wait the cold water of storing in the pipeline to drain and could use, and has so just caused the waste of water resource, be unfavorable for economizing on resources, if people do not wait for that cold water drains just and use, easy to catch cold catching a cold is unfavorable for people's health very much.
Summary of the invention
Technical problem to be solved by this invention is: a kind of solar water heater emptier is provided, and convenient that water in the solar water heater water pipe is emptying.
For solving the problems of the technologies described above, technical scheme of the present invention is: the solar water heater emptier, comprise a surge chamber that is connected with upper and lower conduit, the top of described surge chamber is fixed in the outlet pass place of solar water heater water tank and is provided with the lower mouth of a river, and place, the described lower mouth of a river is provided with closing valve; Also be provided with an extension on the described surge chamber, described extension stretches into described solar water heater water tank and extends to the top of described water tank.
As a kind of improvement, described surge chamber comprises cylindrical shell and lid of a bottom opening, and described lid is detachable to be fixedly connected on the bottom opening of described cylindrical shell.
As a kind of improvement, described closing valve is vent plug, and described vent plug is connected with air inlet pipe, and the other end of described air inlet pipe stretches out described surge chamber and is connected with charge valve.
As a kind of improvement, described vent plug comprises cock body and flexible utricule, and described flexible utricule is communicated with described air inlet pipe and is fixed on the described air inlet pipe.
As a kind of improvement, it is inner that described cock body and flexible utricule are installed in described surge chamber.
As a kind of improvement, the described vent plug outside is equipped with and prevents that vent plug from moving the guider of hour offset, described guider comprises the outer lead on a plurality of outer faces that are installed in described cock body, described outer lead stretches into the inside of described solar water heater water tank from the described lower mouth of a river, described outer lead annular array also links together by a connecting ring.
Improve as another kind, described vent plug inside is provided with and prevents that vent plug from moving the guider of hour offset, described guider comprises an interior lead, one end of described interior lead is fixed on the inner face of described cock body, the other end is plugged on the inside of described air inlet pipe, has airflow clearance between the inwall of described interior lead and air inlet pipe.
Improve as another kind, described cock body is arranged in the described solar water heater water tank, the lower surface of described cock body is provided with joint pin, the other end of described joint pin passes the top that the described lower mouth of a river is fixed on described utricule, the outer cover of described joint pin is provided with back-moving spring, one end of described spring is combined with the inwall of described surge chamber, and the other end is combined with the top of described flexible utricule, has the current gap between described joint pin and the described lower mouth of a river.
As a kind of improvement, be connected with loading line between described charge valve and the described air inlet pipe, described loading line is provided with air bag.
As a kind of improvement, described closing valve is magnetic valve.
Owing to adopted technique scheme, the water that the present invention adopts emptier to make and stores in the water pipe is emptying, guaranteed solar water heater when not using water pipe as sky, during use, directly be hot water in the solar water heater by the water that flows out in the water pipe, need not to wait for that cold water drains, be user-friendly to; Water pipe after emptying owing to there is not the water yield to store, in cold cool winter, has been avoided the water pipe phenomenon generations such as cracking of freezing owing to water, has prolonged the service life of water pipe; Because surge chamber has been installed, flowing water is unobstructed during use, can prevent entrained gas in the pipeline, affects result of use; The closing valve of emptier is installed in the surge chamber, emptying after, water not in the surge chamber has been avoided having prolonged the service life of closing valve in the closing valve long period of soaking water; Owing to be provided with air bag at loading line, can prevent vent plug gas leakage, lower mouth of a river bad sealing leaks; Because closing valve can adopt multiple control modes, has made things convenient for the user to select.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of solar water heater emptier embodiment one;
Fig. 2 is a kind of structural representation of vent plug among Fig. 1;
Fig. 3 is the another kind of structural representation of vent plug among Fig. 1;
Fig. 4 is the structural representation of solar water heater emptier embodiment two;
Fig. 5 is the structural representation of solar water heater emptier embodiment three;
Among the figure: the 10-solar water heater water tank; The 11-outlet pass; The 12-through hole; The 20-surge chamber; The 201-cylindrical shell; The 202-lid; The mouth of a river under the 21-; The 22-air inlet pipe; The 23-extension; The 24-upper and lower conduit; 30-the first charge valve; 31-the second charge valve; The 32-loading line; The 33-penstock; The 40-vent plug; The 41-cock body; The 42-utricule that stretches; Lead in the 43-; The 44-connecting ring; The outer lead of 45-; The 46-spring; The 47-joint pin; The 50-air bag.
The specific embodiment
Embodiment one:
As shown in Figure 1, the emptier of solar water heater comprises the first charge valve 30 and utilizes the vent plug 40 of the first charge valve 30 inflations, vent plug 40 is installed in surge chamber 20 inside, surge chamber 20 comprises cylindrical shell 201 and lid 202 of a bottom opening, and lid 202 is detachable to be fixedly connected on the bottom opening of cylindrical shell 201.Surge chamber 20 is connected with the upper and lower conduit 24 of solar water heater, the top of surge chamber 20 is connected with outlet pass 11 places of the water tank of solar water heater 10, and be provided with the lower mouth of a river 21, current are smooth at present in order to use, and the aperture at the lower mouth of a river 21 should be greater than the aperture of upper and lower conduit; Also be provided with air inlet pipe 22 on the surge chamber 20, an end of air inlet pipe 22 stretches into surge chamber 20 inside and extends to 21 places, the lower mouth of a river, and the top of air inlet pipe 22 is provided with the vent plug 40 for the lower mouth of a river of sealing, and the other end of air inlet pipe 22 is connected with the first charge valve 30; Also be provided with an extension 23 on the surge chamber 20, extension 23 stretches into described solar water heater water tank 10 inside and extends to the top of water tank 10.
Be connected by loading line 32 between air inlet pipe 22 and the first charge valve 30, loading line 32 is provided with an air bag 50, when the first charge valve 30 is given 40 inflation of sealing vent plug, also to air bag 50 inflations, increased air storage amount in the whole gas circuit, when if slight gas leakage occurs in the flexible utricule 42 of sealing vent plug 40, air bag 50 can within a period of time, prevent vent plug gas leakage too much owing to stored a part of gas, make vent plug break away from the inwall of surge chamber 30, prevent that the lower mouth of a river 21 from leaking.Another of air bag 50 act as the closed state that is convenient for people to distinguish the lower mouth of a river 21, and when air bag 50 gassy, vent plug 40 is heaved, 21 sealings of the lower mouth of a river; When not inflation of air bag 50, then to seal vent plug 40 and do not heave, the lower mouth of a river 21 leads to.This method is convenient for people to select suitable mode of operation.
Also be connected with the second charge valve 31 on the loading line 32, the second charge valve 31 is in parallel with the first charge valve 30, and two charge valves can be inflated vent plug 40, during use, two charge valves are installed in respectively different places, realize the multiple spot control to sealing vent plug 40.
As required, can connect a plurality of charge valves on the loading line 32, these charge valves are in parallel, can control the sealing vent plug.
In the present embodiment, the structure of vent plug as shown in Figure 2, vent plug 40 comprises cock body 41 and the flexible utricule 42 that is fixed together, flexible utricule 42 is communicated with air inlet pipe 22 and is fixed on the described air inlet pipe 22.Cock body 41 and flexible utricule 42 are installed in surge chamber 20 inside.
When 30 unaerated of the first charge valve, cock body 41 breaks away from the inwall of surge chamber 20, and the lower mouth of a river 21 leads to, and when the first charge valve 30 was given vent plug 40 inflation, flexible utricule 42 was heaved, and promotes cock body 41 and is close on the inwall of surge chamber 20, and the lower mouth of a river 21 is sealed.
Be connected with on the outer face of cock body 41 and prevent that vent plug from moving the guider of hour offset, guider comprises a plurality of outer leads 43, on the outer face that is installed in cock body 41 of outer lead 43, outer lead 43 stretches into the inside of solar water heater water tank 10 from the lower mouth of a river 21, outer lead 43 annular array also link together by a connecting ring 44.
Guider can be avoided sealing vent plug 40 and move hour offset, the lower mouth of a river 21 bad sealings are close and cause drainage, and guider is installed in the inside at the lower mouth of a river 21, and wave in water, can prevent the incrustation scale wall built-up, stop up the lower mouth of a river 21 and cause flowing water obstructed.
The guider of vent plug has various structures in the present embodiment, the another kind of structure that the guider of vent plug has as shown in Figure 3, guider comprises an interior lead 45 that is installed in flexible utricule 42 inside, one end of interior lead 45 is fixed on the inner face of cock body 41, the other end is plugged on air inlet pipe 22 inside, has airflow clearance between the inwall of interior lead 45 and air inlet pipe 22.The length of interior lead 45 will guarantee, when charge valve was inflated, interior lead 45 can move and can not break away from the air inlet mouth of pipe with vent plug, and was this simple for structure, can effectively prevent the vent plug displacement, and the phenomenon that causes lower mouth of a river bad sealing to leak occurs.
The operation principle of solar water heater emptier of the present invention is: when on the solar energy during water, current flow into surge chamber 20 by upper and lower conduit 24, this at present the switch at the mouth of a river 21 do not affect water on the solar energy, if open at the lower mouth of a river 21, current are flowed in the water tank 10 by the lower mouth of a river 21 on the surge chamber 20 and extension 23, if the lower mouth of a river 21 is closed, current enter water tank 10 by extension 23; When emptying, close the water source, 40 inflations of 31 pairs of sealings of the first charge valve 30 or the second charge valve vent plug, the flexible utricule 42 of sealing vent plug 40 is heaved, and the inwall that makes cock body 41 be close to surge chamber 20 is blocked the lower mouth of a river 21, because some air of tank top; Under atmospheric effect, the water in extension 23 and the surge chamber 20 will be outside upper and lower conduit 24 effusers, and the direction of current as shown by the arrows in Figure 1; When using solar energy, bleed off the gas in the vent plug 40, the lower mouth of a river 21 leads to, hot water in the water tank 10 enters surge chamber 20 by the lower mouth of a river 21, flow out along upper and lower conduit 24, open with penstock 33, hot water flows out, because after emptying, in the extension 23, in the surge chamber 20 and do not have storage of water in the upper and lower conduit 24, directly flow out hot water with penstock 33, compare with traditional solar water heater, the user does not need to wait for that the cold water in the water pipe drains, and directly just can use hot water.
Embodiment two:
As shown in Figure 4, the surge chamber 20 inner vent plugs 40 that are used for the lower mouth of a river 21 of sealing are compared with embodiment one, have following characteristics:
Vent plug 40 comprises cock body 41 and flexible utricule 42, cock body 41 is arranged in the solar water heater water tank 10, the lower surface of cock body 41 has been provided with joint pin 47, the other end of joint pin 47 passes the top that the lower mouth of a river 21 is installed in utricule 42, the outer cover of joint pin 47 is provided with back-moving spring 46, one end of spring 46 is combined with the inwall of surge chamber 20, and the other end is combined with the top of flexible utricule 42, has the current gap between joint pin 47 and the lower mouth of a river 21.
When 30 unaerated of the first charge valve, cock body 41 is close to the end face of surge chamber 20 under the active force of back-moving spring 46, with 21 sealings of the lower mouth of a river; When 40 inflation of 30 pairs of vent plugs of the first charge valve, flexible utricule 42 is heaved, and upwards promotes cock body 41, and cock body 41 and surge chamber 20 are broken away from, and the lower mouth of a river 21 leads to.
The operation principle of present embodiment is: on the solar water heater during water, current flow into surge chamber 20 by upper and lower conduit 24, this at present the switch at the mouth of a river 21 do not affect water on the solar energy, if open at the lower mouth of a river 21, current are flowed in the water tank 10 by the lower mouth of a river 21 on the surge chamber 20 and extension 23, if the lower mouth of a river 21 is closed, current are flowed in the water tank 10 by the extension 23 on the surge chamber 20; When emptying, close the water source, bleed off the gas in the vent plug 40, vent plug 40 resets, make cock body 41 under the active force of back-moving spring 46, be close to the end face of surge chamber 20, block the lower mouth of a river 21, under atmospheric effect, water in extension 23 and the surge chamber 20 will be outside upper and lower conduit 24 effusers, and the direction of current as shown by the arrows in Figure 4; When using solar energy, the first charge valve 30 gives vent plug 40 inflations, the flexible utricule 42 of vent plug 40 is heaved, promote cock body 41 and break away from surge chamber, the lower mouth of a river 21 leads to, and the hot water in the water tank 10 enters surge chamber 20 by the lower mouth of a river 21, flows out along upper and lower conduit 24, open during use with penstock 33, hot water flows out.
Embodiment three:
Compare with embodiment two with embodiment one, the water tank 10 of solar water heater does not only have an outlet pass 11, the through hole that also has other, as shown in Figure 5, also has through hole 12 on the water tank 10, the lower mouth of a river 21 on the surge chamber 20 is connected with outlet pass 11 on the water tank 10, and extension 22 is fixed on the sidewall of surge chamber 20, and extension 23 passes through hole 12 and extends to tank top.
In embodiment one and embodiment two, surge chamber 20 and water tank 10 one, jointly be wrapped in the insulation material the inside, in the present embodiment, certain distance is arranged between water tank 10 and the surge chamber 20, and during the parcel insulation material, surge chamber is installed in the insulation material outside of solar water heater, surge chamber 20 and outlet pass 11 be separately with insulation material parcel, and the two is the split packing for surge chamber 20 and water tank 10.
Solar water heater emptier of the present invention, its closing valve is not limited to the use vent plug, can also use magnetic valve, when using magnetic valve, can also be in the following ways: the top of surge chamber arranges an air chamber and is used for installing magnetic valve, the air chamber top is provided with cover plate, cover plate is provided with connected entrance, water in-out port one end of magnetic valve is connected with connected entrance, the other end is connected with the lower mouth of a river of surge chamber, the lead-in wire of magnetic valve is drawn from gas chamber sidewall, and extension passes the cover plate of air chamber, extend into the top of water tank, this method water proof, rainproof, dustproof, can also prevent leaky, prolong the service life of magnetic valve, strengthen the safety and reliability of Circuits System.
Solar water heater emptier of the present invention uses machinery valve also can realize its function.Preferred scheme is: closing valve comprises cover plate and pull bar, cover plate is installed in the solar water container, the centre position of pull bar is hinged in the surge chamber by a jointed shaft, and an end of pull bar passes on the bottom surface that the lower mouth of a river is connected to cover plate, and the other end is connected with stay cord.When emptying, the mouth of a river under the cover closure, during use, the stay cord of leaving behind, pull bar are with cover plate jack-up, and water flows out from the lower mouth of a river.
The stop valve of various mechanical types, electromagnetic type or fluid pressure type as long as can realize the switch at the lower mouth of a river, can use as closing valve of the present invention.
The water that the present invention adopts emptier to make and stores in the pipeline is emptying, has guaranteed that solar water heater water pipe when not using during use, directly is hot water in the solar water heater by the water that flows out in the water pipe as sky, need not to wait for that cold water drains, and is user-friendly to; Pipeline after emptying owing to there is not the water yield to store, in cold cool winter, has been avoided the water pipe phenomenons such as cracking of freezing owing to water, has prolonged the service life of water pipe; Because surge chamber has been installed, flowing water flows out through surge chamber during lower water, because the aperture at the lower mouth of a river is greater than upper and lower conduit, current are through the stream that holds of surge chamber, and current are unobstructed, and in the time of can preventing from using, entrained gas in the pipeline affects result of use; Surge chamber has the detachable lid that is fixedly connected with, and when needing, lid is detachable, has made things convenient for the I﹠M of each parts in the surge chamber, has also made things convenient for the I﹠M of surge chamber and solar water heater water tank; The closing valve of emptier is installed in the surge chamber, emptying after, water not in the surge chamber has been avoided in the closing valve long period of soaking water, prevents that valve is aging and causes control insensitive, has prolonged the service life of valve; Because emptier can adopt pneumatic control, control method is simple, and simple in structure understandable, does not need electric power, energy-conserving and environment-protective, and saving resource is conducive to the popularization of solar water heater; Because closing valve can adopt multiple control modes, has made things convenient for the user to select.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand, and the present invention is not restricted to the described embodiments, and without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. solar water heater emptier, it is characterized in that, described solar water heater emptier comprises a surge chamber that is connected with upper and lower conduit, and the top of described surge chamber is fixed in the outlet pass place of solar water heater water tank and is provided with the lower mouth of a river, and place, the described lower mouth of a river is provided with closing valve; Also be provided with an extension on the described surge chamber, described extension stretches into described solar water heater water tank and extends to the top of described water tank; Described closing valve comprises vent plug, the inlet end of the described vent plug air inlet pipe interior with being fixed in described surge chamber is connected, the other end of described air inlet pipe stretches out described surge chamber and is connected with charge valve, described vent plug comprises cock body and flexible utricule, and described flexible utricule is communicated with described air inlet pipe and is fixed on the described air inlet pipe.
2. solar water heater emptier as claimed in claim 1 is characterized in that, it is inner that described cock body and flexible utricule are installed in described surge chamber, also is provided with on the described vent plug and prevents that vent plug from moving the guider of hour offset.
3. solar water heater emptier as claimed in claim 2, it is characterized in that, described guider comprises the outer lead on a plurality of outer faces that are installed in described cock body, described outer lead stretches into the inside of described solar water heater water tank from the described lower mouth of a river, described outer lead annular array also links together by a connecting ring.
4. solar water heater emptier as claimed in claim 2, it is characterized in that, described guider comprises an interior lead, one end of described interior lead is fixed on the inner face of described cock body, the other end is plugged on the inside of described air inlet pipe, has airflow clearance between the inwall of described interior lead and air inlet pipe.
5. solar water heater emptier as claimed in claim 1, it is characterized in that, described cock body is arranged in the described solar water heater water tank, the lower surface of described cock body is provided with joint pin, the other end of described joint pin passes the top that the described lower mouth of a river is fixed on described utricule, the outer cover of described joint pin is provided with back-moving spring, one end of described spring is combined with the inwall of described surge chamber, the other end is combined with the top of described flexible utricule, has the current gap between described joint pin and the described lower mouth of a river.
6. solar water heater emptier as claimed in claim 1 is characterized in that, is connected with loading line between described charge valve and the described air inlet pipe, and described loading line is provided with air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110085938 CN102128505B (en) | 2011-03-25 | 2011-03-25 | Emptying device for solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110085938 CN102128505B (en) | 2011-03-25 | 2011-03-25 | Emptying device for solar water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102128505A CN102128505A (en) | 2011-07-20 |
| CN102128505B true CN102128505B (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110085938 Expired - Fee Related CN102128505B (en) | 2011-03-25 | 2011-03-25 | Emptying device for solar water heater |
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| Country | Link |
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| CN (1) | CN102128505B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664595B (en) * | 2020-06-16 | 2020-12-01 | 徐州云创餐饮有限公司 | Winter anti-freezing device of solar water heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034390Y (en) * | 2007-02-04 | 2008-03-12 | 石力元 | Pneumatic solar water heater water-supply pipe emptying device |
| CN101377360A (en) * | 2008-09-22 | 2009-03-04 | 淮安英硕能源设备有限公司 | Water-saving anti-freezing device of solar water heater system |
| CN101696827A (en) * | 2009-11-04 | 2010-04-21 | 夏育红 | Emptying water drain valve for solar water heater and clutch thereof |
| CN201488371U (en) * | 2009-08-25 | 2010-05-26 | 孙树飞 | Solar water heater pipeline emptying device |
| CN202032777U (en) * | 2011-03-25 | 2011-11-09 | 孙树飞 | Emptier of solar water heater |
| CN202119149U (en) * | 2011-06-30 | 2012-01-18 | 孙树飞 | Emptying device of solar water heater |
-
2011
- 2011-03-25 CN CN 201110085938 patent/CN102128505B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034390Y (en) * | 2007-02-04 | 2008-03-12 | 石力元 | Pneumatic solar water heater water-supply pipe emptying device |
| CN101377360A (en) * | 2008-09-22 | 2009-03-04 | 淮安英硕能源设备有限公司 | Water-saving anti-freezing device of solar water heater system |
| CN201488371U (en) * | 2009-08-25 | 2010-05-26 | 孙树飞 | Solar water heater pipeline emptying device |
| CN101696827A (en) * | 2009-11-04 | 2010-04-21 | 夏育红 | Emptying water drain valve for solar water heater and clutch thereof |
| CN202032777U (en) * | 2011-03-25 | 2011-11-09 | 孙树飞 | Emptier of solar water heater |
| CN202119149U (en) * | 2011-06-30 | 2012-01-18 | 孙树飞 | Emptying device of solar water heater |
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| CN102128505A (en) | 2011-07-20 |
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