CN1117956C - Blow-off device for water supply and drainage pipes of water tank for solar water heater - Google Patents
Blow-off device for water supply and drainage pipes of water tank for solar water heater Download PDFInfo
- Publication number
- CN1117956C CN1117956C CN 98102657 CN98102657A CN1117956C CN 1117956 C CN1117956 C CN 1117956C CN 98102657 CN98102657 CN 98102657 CN 98102657 A CN98102657 A CN 98102657A CN 1117956 C CN1117956 C CN 1117956C
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- China
- Prior art keywords
- valve
- water tank
- water
- lower conduit
- temperature control
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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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- Temperature-Responsive Valves (AREA)
Abstract
The present invention relates to an evacuation device for a water filling and draining pipe of a water tank of a solar water heater. The present invention is characterized in that the present invention comprises an inverted U-shaped water filling and draining pipe arranged in a water tank, wherein the top end of the inverted U-shaped water filling and draining pipe is provided with a temperature control breather valve which is provided with a valve body; an air guiding channel is arranged in the valve body, and a valve core which is composed of a temperature sensing element and can be used for colsing an air inlet or an air outlet of the air guiding channel is arranged on the air guiding channel. The evacuation action and the water injection action of the water filling and draining pipe of the present invention are accurate and reliable, and the present invention has the advantages of simple structure, easy operation and long service life.
Description
The present invention relates to a kind of helioplant, is a kind of emptier of upper and lower conduit of solar water heater water tank specifically.
Much more more and more solar water heater obtains users' favor as a kind of energy-conserving product.Because it is outdoor that the water tank of solar water heater all is arranged at, at the northern area of cold, its antifreeze problem seems particularly important.At present, the antifreeze problem of the heat collector of water heater and water tank itself is resolved basically.But the upper and lower conduit of water tank is then because it is the water flowing of interim ground in managing, and water-flowing amount is little again, so under the lower situation of northern temperature, the insulation of upper and lower conduit requires very strict, and does not still have effective antifreeze way so far.Facts have proved, adopt the conventional way that on body, swathes insulation material and adopt electric heating, trouble not only is installed, the expense height, and also unreliable again.
For addressing the above problem, the someone proposes a kind of multi-functional water control valve that is used for solar water heater, and its structure mainly is made up of two spools up and down, and what have two kinds of dissimilar tooth forms that are crisscross arranged on the end face that two of spool joins can intermeshing tooth.One group of tooth is the open type engagement, and promptly when tool meshed, between cog left the gap, and water can pass through this gap and conducting, and can realize the function of the water up and down of water tank this moment; Another group tooth is closed engagement, and when it meshed, draining valve was opened in the circulation of water in the meeting blocking tube this moment, and the water in the pipe can be discharged under the effect of gravity.The method of operating of this kind water control valve is when needing in water tank water filling, open earlier and be positioned at indoor last taps, the impulse force of water is with upper valve core jack-up and change an angle in the utilization, close the water supply valve door again, the upper valve core of water control valve falls and is in the state that open type meshes, when opening the water supply valve door again, water is by the gap conducting water filling of valve; When the water in the water tank is filled with the water that needs in the evacuated tube, can repeat above-mentioned operating process, upper valve core jack-up is changeed an angle and is in the state that sealing is meshed, open water discharging valve this moment, the water in the pipe is discharged under the effect of gravity.
The duty of above-mentioned water control valve is realizing that impact of water jack-up upper valve core rotates to an angle on utilizing, so the trouble completely that operates need repeat above-mentioned operating process sometimes repeatedly and just can reach the duty that required valve opens or closes; This valve is dipped in for a long time and steeps in hot water, and easily scaling, and intermeshing tooth then need constantly repeat the action of throwing off, mesh in use, very easily wearing and tearing, therefore service life of reducing valve widely, and so influence the reliability of valve working state; The structure of this valve is also comparatively complicated in addition, and for to guarantee the engagement that it is stable, the requirement on machining accuracy of its profile of tooth is higher, and therefore increases its manufacturing cost.
The object of the present invention is to provide a kind of upper and lower conduit emptier of solar water heater water tank, the action that makes its emptying and water filling accurately and reliably, and simple in structure, processing ease, and long service life.
The object of the present invention is achieved like this: a kind of upper and lower conduit emptier of solar water heater water tank, it is characterized in that including an inverted U upper and lower conduit of being located in the water tank, and the top of this inverted U upper and lower conduit is provided with a temperature control breather valve.
Purpose of the present invention also can be realized that by following measure described temperature control breather valve is provided with a valve body, is provided with an air guide channel in this valve body, and this air guide channel is provided with a spool of closing this air guide channel air inlet or gas outlet that is made of temperature-sensing element.Described temperature control breather valve is an opening when being lower than design temperature, is closed condition when being higher than design temperature, and its design temperature should be greater than 6 ℃.The temperature-sensing element of above-mentioned temperature control breather valve can be made of phase-change material, bimetal leaf or memorial alloy, its air inlet is located at the upper surface of valve body, but be provided with the spool of this air inlet of a switch or gas outlet in the valve body, this spool comprises that one is the valve core of hollow form, in this valve core, be filled with phase-change material, the upper end cover of valve core is provided with elastic strip body, a flexible member can be resisted against the upper surface of spool.The temperature control breather valve is fixedly arranged on the upper end of water tank upper and lower conduit.The top of described inverted U upper and lower conduit should be higher than the peak level of water tank.
Operation principle of the present invention and effect are, utilize phase-change material, bimetal leaf or memory metal temperature-sensing element as gas valve, therefore less demanding to temperature-controlled precision, its control temperature is set between 6～35 ℃, when near the temperature the temperature sensor of valve is higher than design temperature, valve is in closed condition, and when temperature was lower than design temperature, valve was in opening all the time, and the user only need open cock of water drain, at any time the water in the evacuated tube reaches antifreeze purpose; Valve be not long period of soaking among hot water, non flouling behaviour, long service life, and stable working state is reliable; Because the opening and closing state of valve all can not influence the water flowing in the upper and lower conduit, need not when antifreeze in summer, as valveless, and need in the winter time when antifreeze, only need once open the action of cock of water drain and can will manage interior water emptying, so the present invention is simple to operate, easy to use; The present invention is simple in structure in addition, installs easily, can reduce its manufacturing and maintenance cost widely.
The explanation of accompanying drawing drawing:
The structural representation of Fig. 1 first kind of embodiment of the present invention;
The structural representation of temperature control breather valve among Fig. 2 the present invention;
The structural representation of second of the temperature control breather valve kind of embodiment among Fig. 3 the present invention;
The structural representation of the third embodiment of temperature control breather valve among Fig. 4 the present invention;
Fig. 5 second kind of structural representation that uses embodiment of the present invention;
Of the present invention the third of Fig. 6 uses the structural representation of embodiment.
It is as follows to describe the present invention in detail below in conjunction with embodiment and accompanying drawing thereof:
See also shown in Figure 1ly, the present invention is mainly used in the upper and lower conduit 2 of solar water heater water tank 1.This upper and lower conduit can be same tubular construction, it comprises the inverted U upper and lower conduit of being located in the water tank 12, one end of this inverted U upper and lower conduit 2 is inserted in the bottom of water tank 1, the other end is located at indoor, and is connected in water inlet pipe and cock of water drain 22 by water inlet switch 21 respectively in its termination and is connected in hot water effluent's end.Close cock of water drain 22, open water inlet switch 21 by upper and lower conduit 2 water filling in water tank; And after water temperature in the water tank raises, when user's desire is used, then open cock of water drain 22, the hot water in the water tank 1 flows out by this upper and lower conduit 2.The sidewall of the suitable eminence of water tank 1 is provided with spilling water valve 11, limits the peak level in the water tank 1.And the top that is inverted U upper and lower conduit 2 should be higher than this peak level.Feature of the present invention is to be provided with a temperature control breather valve 3 on the top of this inverted U upper and lower conduit 2.
This temperature control breather valve 3 is provided with a valve body 31, and this valve body 31 is fixedly arranged on the tube wall place of the upper end on upper and lower conduit 2 tops.Be provided with an air guide channel in the valve body 31, the air inlet 32 of this air guide channel is located at the upper surface of valve body 31, and 33 of exhaust outlets can be located on the valve wall of valve body 31 bottoms.Be provided with the spool 34 of a closed air inlet 32 that constitutes by temperature-sensing element 4 in the valve body 31.This spool 34 is subjected to temperature controlling, and valve is set at opening when the low temperature, is set at closed condition during high temperature.Temperature-sensing element 4 can be made of phase-change material, bimetal leaf or the memorial alloy of paraffin wax class, and when high temperature, above-mentioned 4 actions of temperature control sensing element and drive spool 34 are closed air inlet 34, make valve be in the closed condition of not conducting gas.
Please join shown in Figure 2, above-mentioned in the present embodiment spool 34 comprises that one is the valve core 341 of hollow form, this valve core 341 is fixed in the lower end of valve body 31 inside, in the hollow cavity of this valve core 341, be filled with phase-change material paraffin wax 342, this phase-change material paraffin wax 342 can be selected according to temperature-control range, for example if selecting specification in the present embodiment is 5913 paraffin wax, its physical characteristic is:
Carbon atom distribution (Distribution of C-Atoms) C13～C24
Oil content (Oil content) 20%
22～24 ℃ of freezing ranges (Freezing point/range)
Heat of fusion (Heat of fusion) 189KJ/KG 144KJ/DM
3
Density (Density) at20 ℃ 0.900
at70℃ 0.760
Specific heat (Specfic heat) at100 ℃ 2.1KJ/KG.K
Thermal conductivity (Thermal conductivity) 0.21W/M.K
The upper end cover of valve core 341 is provided with elastic strip body 343, and elastic strip body 343 is covered on the sidewall of valve core 341, and is posted by the surface of paraffin wax.This elastic strip body 343 can be made by the material of strains such as silica gel.
Operation principle of the present invention is to utilize the on off state of the phase-change characteristic control spool 34 of paraffin wax material when temperature changes, when temperature is lower than 22～24 ℃, paraffin wax 342 density in the valve core 341 are bigger, be in curdled appearance, 32 of spool 34 and air inlets leave the gap, temperature control breather valve 3 is in the state of opening, and conducting gas is to upper and lower conduit 2; And when high temperature, paraffin wax 342 density reduce, and volume takes place by swollen rising, and will be positioned at elastic strip body 343 jack-up of its upper end and be upwards protuberance state, and with air inlet 32 sealings, temperature control breather valve 3 is in closing state.In the present embodiment, valve 3 is the upper ends that are positioned at upper and lower conduit 2, can not be soaked in the hot water, and spool 34 is to be made of elastomeric material, does not have mechanical breakdowns such as scaling and wearing and tearing, so have long service life, and advantage such as maintenance cost is low.
Above-mentioned temperature control sensing element 4 also can adopt formations such as bimetal leaf or memory metal, promptly be provided with bimetal leaf or memory metal in the lower end of elastic strip body 343, when temperature raises, the upwards distortion of protuberance takes place in this bimetal leaf or memory metal, thereby 343 jack-up of the elastic strip body on it are closed air inlet 32, realize closing of valve.
Fig. 3 illustrates the another kind of embodiment of temperature control breather valve among the present invention, the valve body 51 of temperature control breather valve 5 is fixedly connected on the top that is inverted U upper and lower conduit 2 in this embodiment, the upper end of valve body 51 is provided with air inlet 52, this air inlet 52 is tapered, because the top of upper and lower conduit 2 is higher than the peak level of water tank 1, so this air inlet 52 can not be immersed in the water.Exhaust outlet 53 can be located on the sidewall of valve body 51 bottoms, to form the passage of an air guide, bottoms in the valve body 51 set firmly a spool 54 that is made of temperature-sensing element 4, this spool 54 can adopt the structure identical as above-mentioned embodiment, can connect a shape and taper air inlet 52 corresponding valve core plates 541 in the upper surface of temperature control sensing element 4.Valve core plate 541 can be made expanding-contracting action up and down under the control of temperature control sensing element 4.At the upper surface of valve core plate 541 contact one flexible member 542, under the effect of this flexible member 542, valve 5 is in the state of opening ventilation, has only when the deformation force of temperature-sensing element 4 during greater than the elastic force of flexible member 542, and valve 5 just can be closed.
The structure of the third embodiment of temperature control gas valve illustrated in fig. 4.In the present embodiment, the structure of temperature control breather valve 6 is basic identical with a last embodiment, and the upper end of its valve body 61 is provided with the upper end wall bolt of external screw thread 611 and upper and lower conduit 2, and this kind structure makes that the installation of valve 6 is very convenient.
The present invention can be installed on valve the top of the upper and lower conduit 2 that is inverted U in use earlier, water pipe is installed in the water tank again.As shown in Figure 5, this U-shaped upper and lower conduit 2 can be made of a single tube body 24, and in this single tube body 24 to being provided with down one at interval 25, a segment distance is left on the top of the upper end at this interval 25 and body 24, make to form U-shaped loops in this single tube body 24, above-mentioned temperature control breather valve is installed the top of this single tube body 24 earlier.Upper and lower conduit 2 with this single tube body is inserted in the water tank 1 by the water tank lower end again, with the splicing position sealing, can easily the present invention be installed on the water tank.
Fig. 6 illustrates the another kind of embodiment of installation of the present invention, the U type body 26 that its upper and lower conduit 2 adopts as shown, one end of this U type body 26 by in the horizontal water tank of packing in the upper end of water tank one section, is pushed in water tank 1 after the temperature control breather valve being installed on the top of U type body 26, seal in the junction.Present embodiment is applicable to the architecture advances to existing water heater.
Method of operating of the present invention is divided into four kinds of situations: one, the water tank water filling is opened and is positioned at indoor water inlet switch 21, and running water injects cold water by upper and lower conduit 2 in water tank 1.Though this moment, valve was in the state of opening under the situation of low temperature, the water pressure that goes up water is bigger, the injection that the gas in the pipe can block water; Two, use hot water, open cock of water drain 22, because the water temperature in the water tank is higher, when hot water passed through valve, the action of the temperature control sensing element of valve drove spool and closes air inlet or gas outlet, make valve be in closing state, hot water flow to through upper and lower conduit 2, cock of water drain 22 and makes use; Three, emptying water pipe after last water, will be gone up taps 21 and close, and this moment, valve was in the state of opening ventilation, opened cock of water drain 22 again, the water emptying under the effect of air pressure in the pipeline; Four, after the water emptying in pipe when re-using hot water, open switch 21 earlier, make to be full of water in the pipe, when opening cock of water drain 22 more at this moment, hot water can be drawn from water tank 1,, breather valve is closed when flow of hot water during through the temperature control breather valve.
Claims (9)
1, a kind of upper and lower conduit emptier of solar water heater water tank is characterized in that including an inverted U upper and lower conduit of being located in the water tank, and the top of this inverted U upper and lower conduit is provided with a temperature control breather valve.
2, the upper and lower conduit emptier of a kind of solar water heater water tank according to claim 1, it is characterized in that described temperature control breather valve is provided with a valve body, be provided with an air guide channel in this valve body, this air guide channel is provided with a spool of closing this air guide channel air inlet or gas outlet that is made of temperature-sensing element.
3, the upper and lower conduit emptier of a kind of solar water heater water tank according to claim 1 and 2 is characterized in that described temperature control breather valve is an opening when being lower than design temperature, be closed condition when being higher than design temperature.
4, the upper and lower conduit emptier of a kind of solar water heater water tank according to claim 1 and 2 is characterized in that the temperature-sensing element of described temperature control breather valve can be made of phase-change material, bimetal leaf or memorial alloy.
5, the upper and lower conduit emptier of a kind of solar water heater water tank according to claim 1 and 2, it is characterized in that the air inlet of described temperature control breather valve is located at the upper surface of valve body, but be provided with the spool of this air inlet of a switch or gas outlet in the valve body, this spool comprises that one is the valve core of hollow form, be filled with phase-change material in this valve core, the upper end cover of valve core is provided with elastic strip body.
6, the upper and lower conduit emptier of a kind of solar water heater water tank according to claim 1 and 2, it is characterized in that the air inlet of described temperature control breather valve is located at the upper end of valve body, bottom in the valve body is provided with a spool that is made of temperature-sensing element, and a flexible member is resisted against the upper surface of spool.
7, the upper and lower conduit emptier of a kind of solar water heater water tank according to claim 1 is characterized in that described temperature control breather valve is fixedly arranged on the upper end of water tank upper and lower conduit.
8, the upper and lower conduit emptier of a kind of solar water heater water tank according to claim 4 is characterized in that the setting pest degree of described temperature-sensing element should be greater than 6 ℃.
9, the upper and lower conduit emptier of a kind of solar water heater water tank according to claim 1 is characterized in that the top of described inverted U upper and lower conduit should be higher than the peak level of water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98102657 CN1117956C (en) | 1998-06-26 | 1998-06-26 | Blow-off device for water supply and drainage pipes of water tank for solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98102657 CN1117956C (en) | 1998-06-26 | 1998-06-26 | Blow-off device for water supply and drainage pipes of water tank for solar water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1240916A CN1240916A (en) | 2000-01-12 |
| CN1117956C true CN1117956C (en) | 2003-08-13 |
Family
ID=5217485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98102657 Expired - Fee Related CN1117956C (en) | 1998-06-26 | 1998-06-26 | Blow-off device for water supply and drainage pipes of water tank for solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1117956C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340811C (en) * | 2004-05-10 | 2007-10-03 | 张成坤 | Water intake pipes emptying and antifreeze method and apparatus |
| CN102697357A (en) * | 2012-06-04 | 2012-10-03 | 辽宁石油化工大学 | Cup special for blind person |
-
1998
- 1998-06-26 CN CN 98102657 patent/CN1117956C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1240916A (en) | 2000-01-12 |
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