CN203604744U - Breather valve and flat type solar water heater comprising same - Google Patents
Breather valve and flat type solar water heater comprising same Download PDFInfo
- Publication number
- CN203604744U CN203604744U CN201320761179.3U CN201320761179U CN203604744U CN 203604744 U CN203604744 U CN 203604744U CN 201320761179 U CN201320761179 U CN 201320761179U CN 203604744 U CN203604744 U CN 203604744U
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- valve
- venting channels
- heat collector
- cavity
- core assembly
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- Withdrawn - After Issue
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/40—Preventing corrosion; Protecting against dirt or contamination
- F24S40/42—Preventing condensation inside solar modules
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/50—Preventing overheating or overpressure
- F24S40/57—Preventing overpressure in solar collector enclosures
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Housings (AREA)
Abstract
The utility model discloses a breather valve suitable for being installed on a heat collector of a flat type solar water heater. The breather valve mainly comprises a connector and a valve body fixedly connected with the connector. A ventilation channel communicated with a cavity of the heat collector is arranged on the valve body. The breather valve is mainly technically characterized by further comprising moisture absorption cotton, a containing cavity is arranged between the connector and the valve body, the moisture absorption cotton is arranged in the containing cavity, an air channel communicated with the outdoor atmospheric environment is arranged in the connector, and the air channel is communicated with the ventilation channel through moisture absorption cotton gas. The utility model further provides the flat type solar water heater comprising the breather valve. According to the breather valve and the flat type solar water heater comprising the breather valve, water mist inside the cavity of the heat collector can be effectively absorbed or reduced, air pressure in the cavity of the heat collector and the air pressure of the external environment can be balanced, parts in the heat collector can be effectively protected, and the service life of the solar water heater can be prolonged.
Description
Technical field
The utility model relates to solar water heater field, relates to particularly a kind of inhalation valve and uses the plate type solar water heater of this inhalation valve.
Background technique
Conventional plate type solar water heater comprises the compositions such as heat collector shell, transparent cover plate, heat absorption plate, thermal insulation layer.Described heat collector shell and transparent cover plate surround the cavity of heat collector, and heat absorption plate, thermal insulation layer are set in the cavity of described heat collector.Heat absorption plate absorbs through the solar radiant energy of transparent cover plate and is converted into heat energy, and sends heat energy to heat transfer medium in heat absorption plate runner, realizes the periodic duty of solar water heater heat transfer medium.
Said structure plate type solar water heater is in use: heat collector constantly absorbs heat, makes the inner cavity of its sealing form malleation, and inner moisture can flash to water vapour simultaneously; When ambient temperature rapid drawdown, transparent cover plate is cooling rapidly, and the water vapour of atomization is met condensation and formed macroscopic water spray haze, and the negative pressure forming at sealing inner cavity.Be gathered in heat collector inner cavity water spray haze and can not get absorbing or alleviating, can directly affect usability and the working life of heat collector; More importantly, the positive and negative pressure in heat collector can not get alleviating or balance, also can affect the working life of heat collector.
In order to overcome above-mentioned defect, to inhalation valve and use the plate type solar water heater of this inhalation valve to develop.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of inhalation valve and uses the plate type solar water heater of this inhalation valve; to absorbing or alleviate the water spray haze in the cavity of heat collector; in can also balance heat collector cavity with the air pressure of external environment; can effectively protect heat collector inner components, improve the working life of solar water heater.
The technological scheme that the utility model solves its technical problem employing is: a kind of inhalation valve, be applicable to be arranged on the heat collector of plate type solar water heater, this inhalation valve comprises joint, valve body, absorbent cotton, on described valve body, be provided with the venting channels that is communicated with heat collector cavity, joint is detachably fixedly connected with valve body, between joint and valve body, be provided with cavity volume, described absorbent cotton is placed in cavity volume, the air passageways that is provided with the outer atmosphere environment of communication chamber in joint, this air passageways is communicated with by absorbent cotton gas with described venting channels.
Above-mentioned absorbent cotton is any material manufacture that can absorb water spray haze in prior art.
Further, the venting channels on described valve body is made up of plurality of through holes, is also that described through hole is more than two.
As another mode of execution of the present utility model, venting channels on described valve body is made up of the first venting channels being interconnected and the second venting channels, in the second venting channels, be provided with the first mangetic core assembly, described the first mangetic core assembly can be communicated with or isolate the first venting channels and communicate with the gas of heat collector cavity by the second venting channels.
As the further improvement of above-mentioned mode of execution, described the second venting channels is provided with location wall near one end of the first venting channels, and the other end is fixed with the valve gap with vent, and described the first mangetic core assembly is between location wall and valve gap.
Again further, in described valve gap, be provided with the groove that is cross shape, to facilitate the installation and removal of valve gap.
Again further, described the first mangetic core assembly is mainly made up of spring seat, spring, spool, and described spring seat comprises the body being inserted in for spring and the positioning table being fixed on the wall of location, and body is provided with ventilating hole near one end of positioning table; Described spool comprises and stretches into the valve core rod of body, the sealing baffle of block valve gap vent; Described spring is stuck between sealing baffle and positioning table, and valve core rod can be along the axial back and forth movement of body.
Again further, venting channels on described valve body also comprises the 3rd venting channels being connected with the first venting channels, described the 3rd venting channels is provided with the second location wall near one end of the first venting channels, the other end is fixed with the second valve gap with vent, in the 3rd venting channels, be provided with second valve core assembly, described second valve core assembly is between the second location wall and the second valve gap, and described second valve core assembly can be opened or isolate the first venting channels and be communicated with the gas of heat collector cavity by the 3rd venting channels.
Again further, described second valve core assembly is mainly made up of spring seat, spring, spool, and described spring seat comprises the body being inserted in for spring and be fixed on the positioning table that second valve covers, and body is provided with ventilating hole near one end of positioning table; Described spool comprise stretch into the valve core rod of body, for isolating the sealing baffle that between the first venting channels and the 3rd venting channels, gas communicates; Described spring is stuck between sealing baffle and positioning table, and valve core rod can be along the axial back and forth movement of body.
For reaching above-mentioned purpose, the utility model also proposes a kind of plate type solar water heater, comprises heat collector shell, transparent cover plate, and described heat collector shell and transparent cover plate surround heat collector cavity, in described heat collector cavity, heat absorption plate, thermal insulation layer is set; Described plate type solar water heater also comprises inhalation valve, inhalation valve is placed in heat collector cavity, inhalation valve is arranged on heat collector shell by hollow fixed block, in described hollow fixed block, be provided with gas channel, the air passageways in described joint is by gas channel and the outside atmosphere environmental communication of hollow fixed block.
Further, described hollow fixed block is staking nut, and inhalation valve sealing is fixed on the sidewall of heat collector shell.
The beneficial effect that the utility model compared with the existing technology produced: due to the valve body with venting channels in the utility model be mutually permanently connected with the joint of air passageways, and between valve body and joint, be provided with the cavity that holds absorbent cotton, be communicated with described air passageways and venting channels by absorbent cotton, and then realize the heat collector cavity of plate type solar water heater and communicating of outside atmosphere environment.As can be seen here, the utility model can not only useful energy absorbs or alleviates the water spray haze in the cavity of heat collector, can also balance heat collector cavity in the air pressure of external environment, protection heat collector inner components, the working life of improving solar water heater.
Accompanying drawing explanation:
The following drawings only schematically illustrates and explains the utility model, does not limit the utility model protection domain.
Fig. 1 is the schematic diagram of the utility model one embodiment's inhalation valve;
Fig. 2 is the structure exploded perspective view of Fig. 1;
Fig. 3 is the explosive view (explosive view of second valve core assembly (08) also can be suitable for reference to this figure) of the first mangetic core assembly (05) in Fig. 1;
Fig. 4 is the schematic diagram of valve body in Fig. 1 (02) and joint (01);
Fig. 5 is the schematic diagram of the another embodiment's of the utility model inhalation valve (100 ');
Fig. 6 is the structure exploded perspective view of Fig. 5;
Fig. 7 is that the utility model inhalation valve (100) is arranged on the schematic diagram on plate type solar water heater;
Fig. 8 is the schematic diagram of staking nut in Fig. 7.
Embodiment
Understand for the technical characteristics to model utility, object and effect have more clearly, now contrast accompanying drawing embodiment of the present utility model is described.In the accompanying drawing of the each mode of execution of expression, part same structure or part are provided with two marks, for example inhalation valve 100,100 ', wherein reference character band " ' " expression the first mode of execution in parts, inhalation valve 100 ' is the parts in the first mode of execution; Not band " ' ", as inhalation valve 100, be the parts in the second mode of execution.
Please refer to Fig. 7, Fig. 8, a kind of plate type solar water heater, comprises heat collector shell 200, transparent cover plate 300, staking nut 700, inhalation valve 100,100 '.
Described heat collector shell 200 and transparent cover plate 300 surround heat collector cavity 400, interior heat absorption plate 500, the thermal insulation layer 500 of arranging of described heat collector cavity 400.Described inhalation valve 100,100 ' is placed in heat collector cavity 400, and is arranged on heat collector shell 200 by staking nut 700, in described staking nut 700, is provided with gas channel 710, gas channel 710 is communicated with heat collector cavity 400 and outside atmosphere environment by inhalation valve 100,100 '.Inhalation valve 100,100 ' the staking nut 700 being fixedly connected with is arranged on the sidewall of heat collector shell 200, described inhalation valve 100, outside thread is set on 100 ', match with the internal thread of staking nut 700, for the valve 100 that ensures respiration, 100 ' and staking nut 700 between be threaded be tightly connected, can increase by a seal washer 800.
Embodiment one, and with reference to Fig. 5, Fig. 6, described inhalation valve mainly comprises joint 01 ', valve body 02 ', absorbent cotton 03 '.
Joint 01 ' is fixedly connected with valve body 02 ', can be for example threaded, connection means between the common components such as buckle connection.Between joint 01 ' and valve body 02 ', be provided with cavity volume 04 ', absorbent cotton 03 ' is full of 04 ' cavity volume.
On valve body 02 ', be provided with the venting channels 20 ' that is communicated with heat collector cavity 400, described venting channels 20 ' is plurality of through holes 21 '; In joint 01 ', be provided with by the air passageways 10 ' of the outer atmosphere environment of gas channel 710 communication chamber in staking nut 700.The air passageways 10 ' of described joint 01 ' is interconnected by absorbent cotton 03 ' gas with the venting channels 20 ' of valve body 02 '.
Absorbed by heat absorption plate when sunlight constantly sees through transparent cover plate, the temperature of heat collector cavity raises, and forms malleation.Gas through air passageways--the gas channel of staking nut of the venting channels-absorbent cotton-joint of valve body, is finally sent in outside atmosphere environment successively; When ambient temperature rapid drawdown, transparent cover plate is cooling rapidly, heat collector cavity forms macroscopic water spray haze, in heat collector cavity, form negative pressure simultaneously, outdoor gas is successively through the gas channel--venting channels of the air passageways of joint--absorbent cotton--valve body of staking nut, the moisture containing in outdoor gas is absorbed when through absorbent cotton, finally enters in heat collector cavity and alleviates the pressure in heat collector, also can reduce the generation of water spray haze in heat collector cavity.In the time again having sunlight to see through transparent cover plate, the empty cavity temperature of heat collector raises, and forms malleation, due to the existence of pressure reduction, water spray haze can be successively through air passageways--the gas channel of staking nut of the venting channels-absorbent cotton-joint of valve body, discharge heat collector cavity.So, the empty cavity temperature of heat collector repeatedly raises, reduces, the setting of inhalation valve can balance heat collector cavity in the air pressure of external environment, effectively protect heat collector, can discharge the water spray haze in heat collector cavity simultaneously.
Embodiment two, and with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the inhalation valve 100 in the present embodiment mainly comprises joint 01, valve body 02, absorbent cotton 03, the first mangetic core assembly 05, valve gap 06.Joint 01 is fixedly connected with valve body 02, can be for example threaded, the means that are fixedly connected with between the common components such as buckle connection.Between joint 01 and valve body 02, be provided with cavity volume 04, absorbent cotton 03 is full of 04 cavity volume.
On valve body 02, be provided with the venting channels 20 that is communicated with heat collector cavity 400, described venting channels 20 is made up of the first venting channels 21 being interconnected and the second venting channels 22, in the second venting channels 22, be provided with the first mangetic core assembly 05, described the first mangetic core assembly 05 can be communicated with or isolate the first venting channels 21 and communicate with the gas of heat collector cavity 400 by the second venting channels 22, is provided with by the air passageways 10 of the outer atmosphere environment of gas channel 710 communication chamber of staking nut 700 in joint 01.The air passageways 10 of described joint 01 communicates by absorbent cotton 03 gas with the venting channels 20 of valve body 02.
The second venting channels 22 of valve body 02 is provided with location wall 24 near one end of the first venting channels 21, the other end is provided with internal thread, valve gap 06 is threaded connection and is arranged on the second venting channels 22 passwaies, valve gap 06 is provided with vent 61, and described the first mangetic core assembly 05 is fixed between location wall 24 and valve gap 06.In valve gap 06, be also provided with the groove 62 that is cross shape, to facilitate the installation and removal of valve gap 06.
Above-mentioned the first mangetic core assembly 05 is mainly made up of spring seat 51, spring 52, spool 53, described spring seat 51 comprises the body 511 being inserted in for spring 52 and the positioning table 512 being fixed on the wall 24 of location, and body 511 is provided with ventilating hole 513 near one end of positioning table 512; Described spool 53 comprises and stretches into the valve core rod 531 of body 511, the sealing baffle 532 of block valve gap 06 vent 61; Described sealing baffle 532 comprises and the integrated catch 533 of valve core rod 531 and the sealing gasket 534 of being close to this catch, by catch 533 compression seal pads 534, to realize the first sealing of mangetic core assembly 05 to valve gap 06 upper vent hole 61, described spring 52 is stuck between sealing baffle 532 and positioning table 512, and valve core rod 531 can be along the axial back and forth movement of body 511.
As the further improvement of implementing two, in valve body, be also provided with the 3rd venting channels 23 being connected with the first venting channels 21, described the 3rd venting channels 23 is provided with the second location wall 25 near one end of the first venting channels 21, the other end is fixed with the second valve gap 09 with vent 91, in the 3rd venting channels 23, be provided with second valve core assembly 08, described second valve core assembly 08 is between the second location wall 25 and the second valve gap 09, the gas connection that the first venting channels 21 communicates with the gas of heat collector cavity by the 3rd venting channels 23 can be opened or isolate to described second valve core assembly 08.
With reference to Fig. 3, the first mangetic core assembly 05 is identical with the structure of second valve core assembly 08, is the clear the present embodiment that represents, spy represents respectively the structure in the first mangetic core assembly 05 and second valve core assembly 08 with different reference characters.
Above-mentioned second valve core assembly 08 is mainly made up of spring seat 81, spring 82, spool 83, described spring seat 81 comprises the body 811 being inserted in for spring 82 and is fixed on the positioning table 812 on the second valve gap 09, and body 811 is provided with ventilating hole 813 near 812 one end of positioning table; Described spool 83 comprise stretch into the valve core rod 831 of body 811, for isolating the sealing baffle 832 that between the first venting channels 21 and the 3rd venting channels 23, gas communicates, described sealing baffle 832 comprises and the integrated catch 833 of valve core rod 831 and the sealing gasket 834 of being close to this catch, by catch 833 compression seal pads 834, to realize the sealing of second valve core assembly 08 to the second valve gap 09 upper vent hole 91; Described spring 82 is stuck between sealing baffle 832 and positioning table 812, and valve core rod 831 can be along the axial back and forth movement of body 811.
When work, absorbed by heat absorption plate when sunlight constantly sees through transparent cover plate, the temperature of heat collector cavity raises, and forms malleation.Gas enters the vent of valve gap, by pushing spring, the sealing baffle of pushing the first mangetic core assembly open enters the second venting channels, pass through successively the first venting channels-absorbent tampons--air passageways of joint--gas channel of staking nut through the ventilating hole of spring seat again, finally send in outside atmosphere environment, when ambient temperature rapid drawdown, transparent cover plate is cooling rapidly, heat collector cavity forms macroscopic water spray haze, in heat collector cavity, form negative pressure simultaneously, outdoor pressurized gas are successively through gas channel--first venting channels of the air passageways of joint--absorbent cotton--valve body of staking nut, by promoting the spring of second valve core assembly, the sealing baffle of pushing the second spool open enters the 3rd venting channels, then enter the vent of the second valve gap from the be hit by a bullet ventilating hole of spring abutment of second valve core assembly, finally enter heat collector cavity, to alleviate the pressure in heat collector cavity, also can reduce the generation of water spray haze in heat collector cavity, and now, spring in the second venting channels is stretched out under the effect of air pressure, the sealing baffle of the assembly spool of the first spool seals the gas communication in the second venting channels.In the time again having sunlight to see through transparent cover plate, the empty cavity temperature of heat collector raises, form malleation, due to the existence of pressure reduction, gas is by pushing spring, the sealing baffle of pushing the first mangetic core assembly open enters the second venting channels, water spray haze can be successively through air passageways--the gas channel of staking nut of second venting channels-the first venting channels-absorbent cotton-joint of valve body, discharge heat collector cavity.So, the empty cavity temperature of heat collector repeatedly raises, reduces, the setting of inhalation valve can balance heat collector cavity in the air pressure of external environment, effectively protect heat collector, can discharge the water spray haze in heat collector cavity simultaneously.
Claims (10)
1. an inhalation valve, is applicable to be arranged on the heat collector of plate type solar water heater, mainly comprises joint (01,01 ') valve body (02, being fixedly connected with this joint, 02 '), on this valve body, be provided with the venting channels (20,20 ') that is communicated with heat collector cavity;
It is characterized in that: this inhalation valve also comprises absorbent cotton (03,03 '), between described joint and valve body, be provided with cavity volume (04,04 '), described absorbent cotton is placed in cavity volume, is provided with the air passageways (10,10 ') of the outer atmosphere environment of communication chamber in joint, this air passageways (10,10 ') is communicated with by absorbent cotton gas with described venting channels.
2. inhalation valve according to claim 1, is characterized in that the venting channels (20 ') on described valve body (02 ') is made up of plurality of through holes (21 ').
3. inhalation valve according to claim 1, it is characterized in that the venting channels (20) on described valve body (02) is made up of the first venting channels (21) being interconnected and the second venting channels (22), in the second venting channels (22), be provided with the first mangetic core assembly (05), described the first mangetic core assembly (05) can be communicated with or isolate the first venting channels (21) and communicate with the gas of heat collector cavity.
4. inhalation valve according to claim 3, it is characterized in that described the second venting channels (22) is provided with location wall (24) near one end of the first venting channels (21), the other end is fixed with the valve gap (06) of band vent (61), and described the first mangetic core assembly (05) is positioned between location wall (24) and valve gap (06).
5. inhalation valve according to claim 4, is characterized in that being also provided with in described valve gap (06) groove (62) that is cross shape.
6. inhalation valve according to claim 4, it is characterized in that described the first mangetic core assembly (05) is mainly made up of spring seat (51), spring (52), spool (53), described spring seat (51) comprises for the body (511) that is inserted in of spring (52) and is fixed on the positioning table (512) on location wall (24), and one end of the close positioning table (512) of body (511) is provided with ventilating hole (513); Described spool (53) comprises and stretches into the valve core rod (531) of body (511), the sealing baffle (532) of block valve gap (06) vent (61); Described spring (52) is stuck between sealing baffle (532) and positioning table (512), and valve core rod (531) can be along axially back and forth movement of body (511).
7. inhalation valve according to claim 3, it is characterized in that the venting channels (20) on described valve body also comprises the 3rd venting channels (23) being connected with the first venting channels (21), described the 3rd venting channels (23) is provided with the second location wall (25) near one end of the first venting channels (21), the other end is fixed with second valve gap (09) of band vent (91), in the 3rd venting channels (23), be provided with second valve core assembly (08), described second valve core assembly (08) is positioned between the second location wall (25) and the second valve gap (09), described second valve core assembly (08) can be opened or isolate the first venting channels (21) and be communicated with the gas of heat collector cavity by the 3rd venting channels (23).
8. inhalation valve according to claim 7, it is characterized in that described second valve core assembly (08) is mainly made up of spring seat (81), spring (82), spool (83), described spring seat (81) comprises for the body (811) that is inserted in of spring (82) and is fixed on the positioning table (812) on the second valve gap (09), and (812) one end of the close positioning table of body (811) is provided with ventilating hole (813); Described spool (83) comprise stretch into the valve core rod (831) of body (811), for isolating the sealing baffle (832) that between the first venting channels (21) and the 3rd venting channels (23), gas communicates; Described spring (82) is stuck between sealing baffle (832) and positioning table (812), and valve core rod (831) can be along axially back and forth movement of body (811).
9. a plate type solar water heater, comprise heat collector shell (200), transparent cover plate (300), described heat collector shell (200) and transparent cover plate (300) surround heat collector cavity (400), heat absorption plate (500) is set in described heat collector cavity (400), thermal insulation layer (600), it is characterized in that: also comprise according to the inhalation valve (100 described in any one in claim 1 ~ 8, 100 '), described inhalation valve (100, 100 ') be placed in heat collector cavity (400), inhalation valve (100, 100 ') be arranged on heat collector shell (200) by hollow fixed block (700), in described hollow fixed block (700), be provided with gas channel (710), described joint (01, 01 ') air passageways (10 in, 10 ') by the gas channel (710) and outside atmosphere environmental communication of hollow fixed block (700).
10. plate type solar water heater according to claim 9, is characterized in that described hollow fixed block (700) is staking nut, and inhalation valve (100,100 ') sealing is fixed on the sidewall of heat collector shell (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320761179.3U CN203604744U (en) | 2013-11-27 | 2013-11-27 | Breather valve and flat type solar water heater comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320761179.3U CN203604744U (en) | 2013-11-27 | 2013-11-27 | Breather valve and flat type solar water heater comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604744U true CN203604744U (en) | 2014-05-21 |
Family
ID=50717419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320761179.3U Withdrawn - After Issue CN203604744U (en) | 2013-11-27 | 2013-11-27 | Breather valve and flat type solar water heater comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672072A (en) * | 2013-11-27 | 2014-03-26 | 广东万和电气有限公司 | Respiration valve and flat type solar water heater with same |
-
2013
- 2013-11-27 CN CN201320761179.3U patent/CN203604744U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672072A (en) * | 2013-11-27 | 2014-03-26 | 广东万和电气有限公司 | Respiration valve and flat type solar water heater with same |
| CN103672072B (en) * | 2013-11-27 | 2016-05-25 | 广东万和电气有限公司 | Breather valve and use the plate type solar water heater of this breather valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140521 Effective date of abandoning: 20160525 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |