CN203657253U - Leakage limiting device for damaged evacuated collector tube - Google Patents
Leakage limiting device for damaged evacuated collector tube Download PDFInfo
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- CN203657253U CN203657253U CN201420016800.8U CN201420016800U CN203657253U CN 203657253 U CN203657253 U CN 203657253U CN 201420016800 U CN201420016800 U CN 201420016800U CN 203657253 U CN203657253 U CN 203657253U
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- pipe
- vacuum
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- evacuated collector
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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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Abstract
The utility model discloses a leakage limiting device for a damaged evacuated collector tube. The leakage limiting device comprises an evacuated collector tube, wherein an annular valve seat is arranged on the inner side of an outer tube orifice of the evacuated collector tube, the annular valve seat is provided with a control valve clack, the control valve clack is connected with a porous hollow ball filled with sponge through a stainless steel wire, and the stainless steel wire is shorter than the evacuated collector tube. Due to the porous hollow ball (plastic, stainless steel) filled with sponge and connected with the control clack through the stainless steel wire, the porous hollow ball filled with sponge flows out along with a water flow and overturns the control valve clack under the effect of gravity to fall on the annular valve seat so as to stop the water flow. Thereby, the problem that a solar water heater is leaking due to that one or more evacuated collector tubes are damaged is solved; the leakage limiting device for the damaged evacuated collector tube is simple in structure, low in cost and convenient to manufacture, and has great social and economic benefits in popularization and application of the solar water heater.
Description
Technical field
The utility model belongs to the heat utilization technology field of solar energy; relate to the protective device after solar vacuum heat-collecting pipe damages; be specifically related to a kind of vacuum heat collection pipe and damage limit leakage device, the hot water that is specially adapted to the rear restriction of vacuum heat collection pipe damage solar water heater leaks.
Background technology
Solar energy is inexhaustible as a kind of emerging clean energy resource.Making full use of solar energy is a technology that meets China's strategy of sustainable development.Present stage, solar low-temperature utilization in market was more and more universal at home, also more and more obtained approval and the attention of consumer, national government.Solar water heater mainly contains flat plate collector and union pipe heat collector, and two kinds of heat collectors are all very ripe technically, and development widely and application that the vacuum pipe heat-collecting pipe using in union pipe heat collector obtains in China especially.
Vacuum heat collection pipe is divided into " full glass " and " glass and metal structure " two large classes, change solar energy into heat energy, can or first carry out heat exchange by vacuum heat collection pipe and heat-transfer working medium by the heat-transfer working medium in union pipe (as water) heat energy is transported to thermal storage water tank.The core parts of solar water heater are glass heat-collecting vacuum tubes, and it has adopted vacuum interlayer, have eliminated convection current and the conductive heat loss of gas, and application choice absorber coatings, make the radiation heat loss of vacuum heat collection pipe drop to minimum.All-glass vacuum tube thermal-collecting tube is as the inner flask of an elongation, formed by two coaxial circles glass tubes, between inner and outer tubes, be pumped into high vacuum, the outer surface that selective sunshine absorber coatings (surface, film system) is deposited on inner tube forms absorber, solar energy is converted to heat energy, the heat-transfer fluid in heating inner tube.
Domestic solar water heater domestic market general layout is because the factor such as feature and price of product forms at present, can predict in domestic solar water heater, and in low-end market, will be that all-glass vacuum tube water heater is main.
Due to the direct heat hot water of vacuum heat collection pipe, quick heating, the water capacity in header is easily evaporated or pipe-line system is unreasonable or occur that the water in vacuum heat collection pipe reduces when control system fault, and vacuum heat collection pipe top is in air drying.Surely when the upper and lower temperature difference of empty set inside heat pipe exceedes the glass tolerance temperature difference impact limit, the inner tube of vacuum heat collection pipe can burst, and causes solar heat device to leak, and wherein reason is generally that stress is concentrated, glass has micro-crack to cause being swashed fried.
In sum, the limit how solving after all-glass vacuum tube thermal-collecting tube in solar water heater damages is leaked problem, to guarantee the normal operation of solar water heater, is one of problem of jointly paying close attention to of those skilled in the art.
Summary of the invention
Existing leakage problem after damaging for the vacuum pipe heat-collecting pipe in above-mentioned solar water heater, the purpose of this utility model is, provides a kind of vacuum heat collection pipe simple in structure, convenient for production, that anti-leak result is good to damage limit leakage device.
In order to realize above-mentioned task, the utility model adopts following technical solution:
A kind of damage limit leakage device of vacuum pipe heat-collecting pipe, comprise vacuum pipe heat-collecting pipe, it is characterized in that, there is ring-type valve seat outer mouth of pipe inner side at vacuum pipe heat-collecting pipe, on ring-type valve seat, be provided with control flap, the porous hollow sphere that fills sponge on control flap in being connected with by stainless steel filament, described stainless steel filament length is longer than the length of vacuum pipe heat-collecting pipe.
Vacuum pipe heat-collecting pipe is in the time of normal work, control flap upwarps at ring-type valve seat upper under elastic force effect, to on control flap, turn over and open, the selective sunshine absorber coatings (surface, film system) that is now deposited on inner tube outer surface forms absorber, and solar energy is converted to heat energy.After water heat absorption in vacuum heat collection pipe, temperature raises, and proportion reduces and rises, and forms a power upwards, forms a thermal siphon system.Along with hot water constantly on move and be stored in the top of storage tank, by convection action, water larger compared with low-density temperature is delivered to the bottom of vacuum heat collection pipe simultaneously, so move in circles, final whole box water is all increased to certain temperature, and whole solar water heater is normally worked.
In the time that vacuum heat collection pipe is damaged, the porous hollow sphere that fills sponge flows out with current, and under Action of Gravity Field, the porous hollow sphere that fills sponge turns over to drop under the drive of stainless steel filament closes current on annular valve.Thereby solve because single or multiple vacuum pipe heat-collecting pipes damage, and cause leakage, thereby make the problem of solar water heater cisco unity malfunction.
Vacuum pipe heat-collecting pipe of the present utility model damages limit leakage device, and the technique effect bringing is:
One, solved because vacuum heat collection pipe damages the problem that causes hot water to leak
By stainless steel filament with control that flap is connected one in fill the porous hollow sphere (plastics, stainless steel) of sponge, in the time that vacuum heat collection pipe is damaged, the porous hollow sphere that fills sponge flows out with current, under Action of Gravity Field, control flap is turned over and drops on ring-type valve seat shangguan and close current.Even thereby solve because single or several vacuum heat collection pipes damages, and the problem that causes solar water heater to leak.
Two, easy installation simple in structure
The primary structure that vacuum pipe heat-collecting pipe of the present utility model damages limit leakage device is: there is ring-type valve seat (plastics) the outer mouth of pipe inner side of vacuum pipe heat-collecting pipe, on ring-type valve seat, be provided with and control flap (plastics), in being connected with by stainless steel filament, fill the porous hollow sphere of sponge on control flap, it is simple for production, and is easy to be installed in vacuum pipe heat-collecting pipe.
Three, cost is lower, and after vacuum heat collection pipe damages, solar water heater can work on
Simple in structure, with low cost.When because single or multiple vacuum pipe heat-collecting pipes damage, and cause solar water heater to leak, when cisco unity malfunction, must change the vacuum heat collection pipe damaging.Adopt this device not allow in the time, or temporarily do not have can for replace vacuum pipe heat-collecting pipe time, still can ensure the normal operation of solar water heater, guarantee normally the carrying out of people's live and work.
Accompanying drawing explanation
Fig. 1 is the critical piece that vacuum pipe heat-collecting pipe of the present utility model damages limit leakage device;
Fig. 2 is that the vacuum pipe heat-collecting pipe that single vacuum pipe heat-collecting pipe is installed damages limit leakage device schematic diagram;
Fig. 3 is the solar water heater schematic diagram that damages limit leakage device while normally working with vacuum pipe heat-collecting pipe;
Fig. 4 leaks schematic diagram for damaging the prevention of limit leakage device with vacuum pipe heat-collecting pipe after damaging when vacuum pipe heat-collecting pipe;
Fig. 5 is the profile of solar water heater while normally working;
The profile that when Fig. 6 is leakage, Drain Resistance device works;
Label in figure is: 1, control flap, 2, ring-type valve seat, 3, stainless steel filament; 4, in, fill the porous hollow sphere of sponge; 5, insulating; 6, water-heater water tank.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The specific embodiment
Referring to accompanying drawing 1-6, the present embodiment provides a kind of vacuum heat collection pipe and damages limit leakage device, comprise vacuum pipe heat-collecting pipe, the outer mouth of pipe of vacuum heat collection pipe inner side is provided with ring-shaped base 2, on ring-type valve seat, be provided with and control flap 1, in being connected with by stainless steel filament 3, fill the porous hollow sphere 4 of sponge on control flap 1, the length that described stainless steel filament 3 length are longer than vacuum pipe heat-collecting pipe.
In the present embodiment, ring-shaped base 2 and control flap 1 are adopted made of plastic.The porous hollow sphere 4 that inside fills sponge adopts plastics or stainless steel to make.
Ring-shaped base 2 and vacuum heat collection pipe mouth of pipe inner side clamping, controls flap 1 as elastic spacing mechanism, in the time that vacuum heat collection pipe is normally worked, controls flap 1 and under elastic force effect, upwarps on ring-shaped base 2 upper and turn over and open; In the time that vacuum heat collection pipe is damaged, the porous hollow sphere 4 that inside fills sponge flows out with current, and under Action of Gravity Field, stainless steel filament 3 is moved the next of ring-shaped base 2 to brake control valve lobe 1, closes the current at this vacuum heat collection pipe place.
Below the concrete Preparation Example that inventor provides:
Referring to Fig. 1, prepared by ring-type valve seat 2: the plastic sheet that is 5mm left and right by thickness is made the ring-type valve seat 2 that can fit tightly with the mouth of pipe inner side of vacuum pipe heat-collecting pipe; Control flap 1 be connected on ring-type valve seat 2 by an elastic component (as spring), this control flap 1 can be turned over above above ring-type valve seat 2 under flexible effect, and can and ring-type valve seat 2 between keep open and-shut mode.
Stainless steel filament 3: select to have the stainless steel filament of certain rigidity, its length is slightly longer than the length of vacuum heat collection pipe inner tube;
Inside fill the porous hollow sphere 4 of sponge: be the interior plug of the porous hollow sphere sponge of vacuum heat collection pipe diameter 2/3rds by diameter, after water suction, become and weigh, itself and stainless steel filament are linked together.
Referring to Fig. 2, ring-type valve seat 2 is fixed in the inner tube of vacuum pipe heat-collecting pipe, the stainless steel filament 3 being connected with the interior porous hollow sphere 4 that fills sponge is fixed on and is controlled on flap 1.
Referring to Fig. 3 and Fig. 5, have insulating 5 in the water-heater water tank 6(of solar water heater water-heater water tank 6 outsides) vacuum pipe heat-collecting pipe of the present utility model is installed on upper all vacuum heat collection pipes and is damaged limit leakage device, control flap 1 and under elastic force effect, upwarp upper at ring-type valve seat 2, to on control flap 1, turn over and open, the upper tipping angle of controlling flap is about 45 °, do not affect hot water under convection action and move in water-heater water tank, guaranteed the normal work of solar water heater.
Referring to Fig. 4 and Fig. 6, after vacuum pipe heat-collecting pipe damages, the porous hollow sphere 4 that inside fills sponge flows out with current, under Action of Gravity Field, elastic spacing mechanism is moved to the next, and elastic spacing mechanism drives under flap, to turn over to drop on and on valve seat, closes current.
Like this, even after one or certain several vacuum pipe heat-collecting pipe damage, this vacuum heat collection pipe damages the leakage that limit leakage device can stop current, has ensured that the continuation of solar water heater is normally worked.
Claims (3)
1. a vacuum pipe heat-collecting pipe damages limit leakage device, comprise vacuum pipe heat-collecting pipe, it is characterized in that, there is ring-type valve seat outer mouth of pipe inner side at vacuum pipe heat-collecting pipe, on ring-type valve seat, be provided with control flap, the porous hollow sphere that fills sponge on control flap in being connected with by stainless steel filament, described stainless steel filament length is longer than the length of vacuum pipe heat-collecting pipe.
2. vacuum pipe heat-collecting pipe as claimed in claim 1 damages limit leakage device, it is characterized in that, described annular valve and control flap adopt plastics to make.
3. vacuum pipe heat-collecting pipe as claimed in claim 1 damages limit leakage device, it is characterized in that, the porous hollow sphere that fills sponge in described adopts plastics or stainless steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016800.8U CN203657253U (en) | 2014-01-10 | 2014-01-10 | Leakage limiting device for damaged evacuated collector tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016800.8U CN203657253U (en) | 2014-01-10 | 2014-01-10 | Leakage limiting device for damaged evacuated collector tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657253U true CN203657253U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016800.8U Expired - Fee Related CN203657253U (en) | 2014-01-10 | 2014-01-10 | Leakage limiting device for damaged evacuated collector tube |
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| CN (1) | CN203657253U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776182A (en) * | 2014-01-10 | 2014-05-07 | 西安建筑科技大学 | Leakage limiting device for damaged evacuated collector tube |
| CN113390188A (en) * | 2021-04-25 | 2021-09-14 | 戴家良 | Heat collecting pipe convenient to maintain for solar water heater |
-
2014
- 2014-01-10 CN CN201420016800.8U patent/CN203657253U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776182A (en) * | 2014-01-10 | 2014-05-07 | 西安建筑科技大学 | Leakage limiting device for damaged evacuated collector tube |
| CN103776182B (en) * | 2014-01-10 | 2016-02-10 | 西安建筑科技大学 | A kind of vacuum heat collection pipe damages limit leakage device |
| CN113390188A (en) * | 2021-04-25 | 2021-09-14 | 戴家良 | Heat collecting pipe convenient to maintain for solar water heater |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20170110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |