CN105020917A - Solar water heater heat storage unit with safety device and installation method of heat storage unit - Google Patents
Solar water heater heat storage unit with safety device and installation method of heat storage unit Download PDFInfo
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- CN105020917A CN105020917A CN201510464323.0A CN201510464323A CN105020917A CN 105020917 A CN105020917 A CN 105020917A CN 201510464323 A CN201510464323 A CN 201510464323A CN 105020917 A CN105020917 A CN 105020917A
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- heat storage
- heat
- water heater
- safety device
- accumulation element
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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 invention relates to a solar water heater heat storage unit with a safety device and an installation method of the heat storage unit. The heat storage unit comprises a heat storage element (1) and a decompression valve (4). A phase-change heat storage material (7) is arranged in the heat storage element (1). A decompression hole (9) is formed in one end of the heat storage element (1), and the decompression valve (4) is fixed to one end of the heat storage element (1) and is communicated with the interior of the heat storage element (1) through the decompression hole (9). The heat storage unit is horizontally or obliquely arranged in a solar collector pipe (5), so that the decompression valve (4) is upward, an opening in the inner side of the decompression hole (9) is higher than the liquid surface of the heat storage material (7). Compared with the prior art, by the adoption of the additionally arranged decompression valve and the simple and convenient installation method, internal pressure of the heat storage unit is limited by releasing gas and a small amount of steam, and safe operation of the heat storage unit is guaranteed. Besides, losses of heat storage mediums are small when the decompression valve is opened, and heat storage capacity of the element is basically not reduced.
Description
Technical field
The present invention relates to a kind of technical field of solar water heaters, especially relate to a kind of solar water heater heat storage units with safety device and installation method thereof.
Background technology
Phase-change thermal storage solar water heater adopts phase-change heat-storage material to store solar energy.Because phase-change material storage density is large, such solar water heater is without the need to heat storage water tank, and volume is little, easy for installation, and the fresh health of water outlet, be a kind of novel energy-saving environment-friendly product with great market prospect.Similar with conventional solar boilers, this series products also exist by environment and use cause heat-storage medium temperature, hypertonia problem, particularly not yet pay in house or long-term unoccupied time, running water is not had to originate, water heater is in air drying condition, and too high pressure and temperature easily causes potential safety hazard.
At present, phase-change thermal storage solar water heater controls internal temperature or pressure by T/P valve, radiator or abat vent.But these measures can only control the temperature of heat-storage medium (phase-change material) and heat transferring medium (water), maybe can only control the pressure of heat transferring medium, the pressure of heat-storage medium (phase-change material) directly can not be controlled.Like this, in Long-Time Service process, the pressure in airtight heat storage units inevitably raises gradually, thus container breakage and heat accumulating may be caused to leak, and causes equipment thermal storage performance to decline, and causes potential safety hazard.
Summary of the invention
Object of the present invention is exactly provide a kind of solar water heater heat storage units and the installation method thereof with the band safety device of the advantages such as the loss of safe and reliable, heat-storage medium is little, simple installation to overcome defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions: a kind of solar water heater heat storage units with safety device, comprise heat accumulation element and relief valve, described heat accumulation element is built with phase-change heat-storage material, and heat accumulation element one end is provided with relief hole, described relief valve is fixed on heat accumulation element one end and by relief hole and heat accumulation element internal UNICOM.
Described heat accumulation element one end is provided with sealing flange, and described relief hole is arranged on the top of sealing flange, and when the opening of relief hole inside heat accumulation element sealing flange is positioned at use heat accumulating liquid level more than.
As preferred technical scheme, described relief hole tilts to be opened in sealing flange top, and the interior side opening of relief hole (namely near the opening of heat accumulating side) is positioned at the top of sealing flange minimum outer diameter part.
Or described relief hole is perpendicular to flange surfaces.
As preferred technical scheme, in described heat accumulation element, be provided with block piece near relief hole place.When safety valve is opened, interior media is discharged through relief hole.The medium of now discharging is actually gas-liquid mixture, particularly when material level is nearer apart from side opening in relief hole, containing more heat accumulating.Install the effect that block piece can play certain gas-liquid separation additional, reduce heat accumulating loss.Meanwhile, this also can be avoided the heat accumulating of discharging to affect the normal use of safety valve.
Described block piece is a notched sheet metal, and its diameter is slightly less than heat accumulation element inner diameter, is arranged on sealing flange side, and when installing, breach down and be immersed in heat accumulating.
Or described block piece is a U-shaped capillary brass pipe, be welded on the inner side opening part of relief hole, heat accumulation element crests inwall is pressed close at U-shaped capillary brass pipe top, its opening towards and press close to sealing flange inner surface.
As preferred technical scheme, described heat accumulation element (1) is built with the heat exchanger tube support chip of band passage.Passage processed by support chip, the gas in heat accumulation element can be made to flow unobstructed, and make the gas in heat accumulating rise to more than liquid level in time.This is conducive to gas and discharges safety valve as main pressure medium.
Described relief valve is pressure safety valve, and its opening pressure not higher than the safe-working pressure of heat accumulation element, and is not less than saturated vapour pressure when phase-change heat-storage material uses.
An installation method for solar water heater heat storage units with safety device, is characterized in that, by heat storage units level or be obliquely installed in solar energy heat collection pipe, make relief valve upward and the interior side opening of relief hole more than the liquid level of heat accumulating.
The angle of inclination of described heat storage units is 0 ~ 90 degree.
Compared with prior art, tool of the present invention has the following advantages:
(1) this solar energy heat-storage unit is with safety device, can prevent heat storage units internal pressure from exceeding the safe-working pressure of container, thus ensures that its long-term safety is run.
(2) this safety device only discharges gas and a small amount of water vapour, does not substantially cause the loss of heat accumulating.
(3) this heat storage units structure is simple, easy for installation, and installation requirement is easy to realize.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2;
Fig. 3 is the structural representation of block piece in the embodiment of the present invention 2;
Fig. 4 is the structural representation of the embodiment of the present invention 3;
Be designated in figure: 1 heat accumulation element, 2 sealing flanges, 3 through hole studs, 4 relief valves, 5 solar energy heat collection pipes, 6 heat exchanger tubes, 7 phase-change heat-storage materials, 8 block pieces, 9 relief holes.
Detailed description of the invention
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
Heat accumulation element 1 is an oval tubular rustless steel container, in-built a certain amount of heat accumulating 7, and is provided with U heat exchange 6.Cylindrical vessel one end seals with flange 2.Flange 2 is end cap shape, and its maximum outside diameter equals heat accumulation element outer diameter, and minimum outer diameter is slightly less than heat accumulation element inner diameter.Flange 2 outer surface top has the relief hole of inclination, and relief hole is positioned at the top of its minimum outer diameter part at the opening of flange inside.Flange relief hole place is welded with a through hole stud 3, and it installs a relief valve 4 with thread connecting mode.Whole heat storage units inserts in solar vacuum heat-collecting pipe 5, and thermal-collecting tube afterbody is raised 20cm and be placed on air drying under sunlight.This heat storage units air drying 120 days is without the direct leakage phenomenon of heat accumulating, but weightless 35g, prove that internal pressure is mainly discharged with Exhaust Gas form.Heat accumulating relative weight loss is less than 2%, and heat storage capacity declines seldom.
Embodiment 2
Heat accumulation element 1 is an oval tubular rustless steel container, in-built a certain amount of heat accumulating 7, and is provided with U heat exchange 6.Cylindrical vessel one end seals with flange 2.Flange 2 is end cap shape, and its maximum outside diameter equals heat accumulation element outer diameter, and minimum outer diameter is slightly less than heat accumulation element inner diameter.Flange outer face top has the relief hole of inclination, and relief hole is positioned at the top of its minimum outer diameter part at the opening of flange inside.One notched sheet metal 8 is housed near flange 2 place, the diameter of sheet metal 8 is slightly less than heat accumulation element inner diameter, has the gap of one fixed width with heat accumulation member interior wall, and its breach down and be immersed in heat accumulating 7.Sheet metal 8 is fixed in U heat exchange 6.Flange relief hole place is welded with a through hole stud 3, and it installs a relief valve 4 with thread connecting mode.Whole heat storage units is inserted in solar vacuum heat-collecting pipe 5, and thermal-collecting tube afterbody is raised 10cm and be placed on air drying under sunlight.This heat storage units air drying 120 days is without the direct leakage phenomenon of heat accumulating, but weightless 24g, prove that internal pressure is mainly discharged with Exhaust Gas form.Heat accumulating relative weight loss is less than 1%, and heat storage capacity declines seldom.
Embodiment 3
Heat accumulation element 1 is an oval tubular rustless steel container, in-built a certain amount of heat accumulating 7, and is provided with U heat exchange 6.Cylindrical vessel one end seals with flange 2.Flange 2 is end cap shape, and its maximum outside diameter equals heat accumulation element outer diameter, and minimum outer diameter is slightly less than heat accumulation element inner diameter.Flange outer face top opens one perpendicular to the relief hole on surface, and relief hole is welded with the bending capillary brass pipe 8 of a U-shaped at the opening part of flange inside, and copper pipe 8 opening is pressing close to container top inwall, opening towards and press close to flange 2 inner surface.Flange relief hole place is welded with a through hole stud 3, and it installs a relief valve 4 with thread connecting mode.Whole heat storage units is inserted in solar vacuum heat-collecting pipe 5, and thermal-collecting tube afterbody is raised 7.5cm and be placed on air drying under sunlight.This heat storage units air drying 120 days is without the direct leakage phenomenon of heat accumulating, but weightless 21g, prove that internal pressure is mainly discharged with Exhaust Gas form.Heat accumulating relative weight loss is less than 1%, and heat storage capacity declines seldom.
Described heat accumulation element (1) is built with the heat exchanger tube support chip of band passage.Passage processed by support chip, the gas in heat accumulation element can be made to flow unobstructed, and make the gas in heat accumulating rise to more than liquid level in time.This is conducive to gas and discharges safety valve as main pressure medium.
Below be only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles 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 (10)
1. the solar water heater heat storage units with safety device, it is characterized in that, comprise heat accumulation element (1) and relief valve (4), described heat accumulation element (1) is built with phase-change heat-storage material (7), and heat accumulation element (1) one end is provided with relief hole (9), described relief valve (4) is fixed on heat accumulation element (1) one end and passes through relief hole (9) and heat accumulation element (1) inner UNICOM.
2. the solar water heater heat storage units of band safety device according to claim 1, it is characterized in that, described heat accumulation element (1) one end is provided with sealing flange (2), described relief hole (9) is arranged on the top of sealing flange (2), and more than the liquid level of relief hole (9) heat accumulating (7) when the opening of heat accumulation element sealing flange (2) inner side is positioned at use.
3. the solar water heater heat storage units of band safety device according to claim 2, it is characterized in that, described relief hole (9) tilts to be opened in sealing flange (2) top, and the interior side opening of relief hole (9) is positioned at the top of sealing flange (2) minimum outer diameter part.
4. the solar water heater heat storage units of band safety device according to claim 2, is characterized in that, described relief hole (9) is perpendicular to sealing flange (2) surface.
5. the solar water heater heat storage units of band safety device according to claim 2, is characterized in that, is provided with block piece (8) in described heat accumulation element (1) near relief hole (9) place.
6. the solar water heater heat storage units of band safety device according to claim 5, it is characterized in that, described block piece (8) is a notched sheet metal, its diameter is less than heat accumulation element inner diameter, be arranged on sealing flange (2) side, and when installing, breach down and be immersed in heat accumulating (7).
7. the solar water heater heat storage units of band safety device according to claim 5, it is characterized in that, described block piece (8) is a U-shaped capillary brass pipe, be welded on the inner side opening part of relief hole (9), heat accumulation element (1) top inner wall is pressed close at U-shaped capillary brass pipe top, its opening towards and press close to sealing flange (2) inner surface.
8. the solar water heater heat storage units of band safety device according to claim 2, is characterized in that, described heat accumulation element (1) is built with the heat exchanger tube support chip of band passage.
9. the solar water heater heat storage units of band safety device according to claim 1, it is characterized in that, described relief valve (4) is pressure safety valve, its opening pressure not higher than the safe-working pressure of heat accumulation element (1), and is not less than saturated vapour pressure when phase-change heat-storage material (7) uses.
10. be with the installation method of the solar water heater heat storage units of safety device as claimed in claim 1 for one kind, it is characterized in that, by heat storage units tilt 0 ~ 90 degree be arranged in solar energy heat collection pipe (5), make relief valve (4) upward and the interior side opening of relief hole (9) more than the liquid level of heat accumulating (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464323.0A CN105020917B (en) | 2015-07-31 | 2015-07-31 | A kind of solar water heater heat storage units with safety device and its installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510464323.0A CN105020917B (en) | 2015-07-31 | 2015-07-31 | A kind of solar water heater heat storage units with safety device and its installation method |
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| CN105020917A true CN105020917A (en) | 2015-11-04 |
| CN105020917B CN105020917B (en) | 2017-07-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017020573A1 (en) * | 2015-07-31 | 2017-02-09 | 江苏启能新能源材料有限公司 | Heat storage unit with safety device for solar water heater |
| CN110260531A (en) * | 2019-06-15 | 2019-09-20 | 厦门市钛科创科技有限公司 | Phase-change thermal storage solar water heater with adaptive radiator structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219072A (en) * | 1978-02-10 | 1980-08-26 | Barlow Donald W Sr | Phase change material heat exchanger |
| CN2559935Y (en) * | 2002-08-05 | 2003-07-09 | 陈明 | All-weather vacuum heat collecting tube |
| CN104697184A (en) * | 2013-12-09 | 2015-06-10 | 江苏贝德莱特太阳能科技有限公司 | Phase-change heat-storage type solar water heater |
| CN204923511U (en) * | 2015-07-31 | 2015-12-30 | 江苏启能新能源材料有限公司 | Take safety device's solar water heater heat -retaining unit |
-
2015
- 2015-07-31 CN CN201510464323.0A patent/CN105020917B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219072A (en) * | 1978-02-10 | 1980-08-26 | Barlow Donald W Sr | Phase change material heat exchanger |
| CN2559935Y (en) * | 2002-08-05 | 2003-07-09 | 陈明 | All-weather vacuum heat collecting tube |
| CN104697184A (en) * | 2013-12-09 | 2015-06-10 | 江苏贝德莱特太阳能科技有限公司 | Phase-change heat-storage type solar water heater |
| CN204923511U (en) * | 2015-07-31 | 2015-12-30 | 江苏启能新能源材料有限公司 | Take safety device's solar water heater heat -retaining unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017020573A1 (en) * | 2015-07-31 | 2017-02-09 | 江苏启能新能源材料有限公司 | Heat storage unit with safety device for solar water heater |
| CN110260531A (en) * | 2019-06-15 | 2019-09-20 | 厦门市钛科创科技有限公司 | Phase-change thermal storage solar water heater with adaptive radiator structure |
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| CN105020917B (en) | 2017-07-25 |
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