CN201488350U - Water tank for solar water heater and solar water heater - Google Patents
Water tank for solar water heater and solar water heater Download PDFInfo
- Publication number
- CN201488350U CN201488350U CN2009201620222U CN200920162022U CN201488350U CN 201488350 U CN201488350 U CN 201488350U CN 2009201620222 U CN2009201620222 U CN 2009201620222U CN 200920162022 U CN200920162022 U CN 200920162022U CN 201488350 U CN201488350 U CN 201488350U
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- medium
- water tank
- tank
- water
- storage tank
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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
- Y02E10/44—Heat exchange systems
Abstract
The utility model relates the technical field of a solar water heater, and discloses a water tank for the solar water heater, comprising a water storage tank, a medium water tank and a radiating pipe, wherein the water storage tank is provided with a hot water outlet and a cold water inlet; the radiating pipe is positioned inside the water storage tank; an expansion tank is arranged above the medium water tank and is communicated with the medium water tank by a connecting pipe; the connecting pipe is provided with a medium injection hole which is positioned above the radiating pipe; and the medium injection hole extends outside the water storage tank through a medium injection pipe. By adopting the water tank for the solar water heater, the medium injection hole is arranged on the connecting pipe under the expansion tank and is positioned above the radiating pipe, and the liquid level of medium fluid is above the radiating pipe and under the expansion tank, so that the radiating pipe can be fully used, and the pressure inside a circulating channel can be normally relieved by the expansion tank. The utility model also provides a solar water heater.
Description
Technical field
The utility model relates to technical field of solar water heaters, relates in particular to a kind of solar water heater water tank, and the utility model also relates to a kind of solar water heater.
Background technology
Along with the raising of living standards of the people, water heater application in daily life more and more widely.
Existing water heater is divided into combustion gas, fire coal, fuel-oil water heater according to energy source, and several big classes such as electric heater.Above-mentioned combustion gas, fire coal, fuel-oil water heater consumption all are non-renewable energy resources, also cause the pollution of environment; Simultaneously, continue surging today in energy prices, the cost of use of above-mentioned combustion gas, fire coal, fuel-oil water heater is very high, has brought bigger financial burden to the user.Because power consumption is big, electricity price also has the trend of sustainable growth, and also there is no small obstacle in the extensive use of above-mentioned electric heater.
Under this background, advantage is widely used solar water heater so that its energy clean environment firendly, cost of use be lower, easy to use etc., and this will bring significant impact to Chinese national economy and environmental protection cause.
Winter is very low owing to outdoor temperature, the water capacity easy freezing in the pipelines of solar water heater, and this has brought very big inconvenience to its use, and heat-conducted solar water heater then can address this problem well.
Please refer to Fig. 1, Fig. 1 is a kind of structural representation of typical heat-conducted solar water heater.
As shown in Figure 1, this heat-conducted solar water heater comprises heat collector 101 and water tank.
Water tank comprises storage tank 102 and medium water tank 103.Storage tank 102 is provided with hot water outlet 102-1 and cold water inlet 102-2, can replenish cold water in storage tank 102 by cold water inlet 102-2, can the hot water that heat in the storage tank 201 be discharged by hot water outlet 102-1.
The medium inlet is provided with expansion drum 105 toward the storage tank 102 outside tube connectors that extend, and expansion drum 105 is a hollow structure, and expansion drum 105 has certain volume, can the holding portion medium fluid.When the medium fluid in the peripheral passage expanded because of the volume that is heated, part MEDIA FLOW cognition entered in the expansion drum 105, can effectively alleviate the pressure in the peripheral passage.
The liquid outlet 101-2 of medium inlet 104-1 and heat collector 101 is by pipeline connection, and the inlet 101-1 of media outlet 103-1 and heat collector 101 passes through pipeline connection.Medium water tank 103, radiating tube 104, heat collector 101 form the peripheral passage of a closure.
The lower medium fluid of temperature enters the pipeline in the heat collector 101 in the medium water tank 103, heat collector 101 absorbs solar radiation energy, medium fluid and heat collector 101 carry out heat exchange, the solar radiation energy that heat collector 101 absorbs is converted into the interior energy of medium fluid, thereby realize heating to medium fluid, the higher medium fluid of the temperature that was heated enters in the radiating tube 104, medium fluid enters in the WATER AS FLOW MEDIUM case 103 after circulating in radiating tube 104, the lower medium fluid of temperature enters in the heat collector 101 again in the medium water tank 103, by continuous circulation the medium fluid in the medium water tank 103 constantly is heated to higher temperature; Meanwhile, medium fluid is carried out heat exchange by the water in radiating tube 104, medium water tank 103 and the storage tank 102, the interior water that can constantly pass in the storage tank 102 of medium fluid, make the temperature of the water in the storage tank 102 constantly raise, thereby realize heating the water in the storage tank 102.
The solar water heater of this structure, the medium fluid that heated in heat collector 101 enters in the medium water tank 103 through behind the radiating tube 104 again, radiating tube 104 has bigger area of dissipation, medium fluid can be carried out sufficient heat exchange with the water in the storage tank 102 by radiating tube 104, heat exchanger effectiveness is higher, the water in the storage tank 102 can be heated to higher temperature.Medium fluid adopts the lower liquid of freezing point, even outdoor temperature is low again, medium fluid can not freezed yet, and in the winter time, the solar water heater of this structure can also normally use.
The solar water heater of this structure, the top of medium water tank 103 is provided with expansion drum 105, the upper end of expansion drum 105 is provided with the medium inlet, the medium inlet extends to the outside of storage tank 102 by the medium ascending pipe, by medium ascending pipe injected media fluid in the closed circuit that medium water tank 103, heat collector 101 and radiating tube 104 are formed.In the process of injected media fluid in closed circuit, medium fluid in the medium water tank 103 is difficult for measuring with respect to the liquid level of expansion drum 105, if the liquid level of medium fluid is positioned at expansion drum 105 or is higher than expansion drum 105, space in the expansion drum 105 diminishes, and expansion drum 105 does not just have the effect of pressure in the buffer cycles path; The liquid level of medium fluid is too low, and when being lower than radiating tube 104 tops, the top of radiating tube 104 will have and not have medium fluid in the section of tubing, and radiating tube 104 can not be fully utilized, and causes the heat exchanger effectiveness of radiating tube 104 lower.
The utility model content
The purpose of this utility model provides a kind of solar water heater water tank, and this solar water heater is moderate with the liquid level of the medium fluid in the water tank, and the liquid level of medium fluid can not be higher than the bottom of expansion drum, can not be lower than the top of radiating tube yet.Another purpose of the present utility model has provided a kind of solar water heater.
In order to solve the problems of the technologies described above, the utility model provides a kind of solar water heater water tank, comprise storage tank, medium water tank and radiating tube, described storage tank is provided with hot water outlet and cold water inlet, described radiating tube is positioned at described storage tank, the top of described medium water tank is provided with expansion drum, described expansion drum is communicated with the medium water tank by tube connector, described tube connector is provided with the medium inlet, described medium inlet is positioned at the top of described radiating tube, and this medium inlet extends to described storage tank outside by the medium ascending pipe.
Preferably, described medium water tank is positioned at described storage tank inside.
Preferably, described radiating tube in the shape of a spiral shape be around in the outside of described medium water tank.
Preferably, described radiating tube and described medium water tank are arranged side by side.
Preferably, described medium water tank is positioned at described storage tank outside.
Preferably, described storage tank also is set with shell body outward, is provided with heat-insulation layer between described storage tank and the described shell body.
Preferably, described medium water tank is arranged in described heat-insulation layer.
A kind of solar water heater comprises water tank and heat collector, and described water tank is the said solar-energy water heater water tank.
The solar water heater water case that the utility model provides comprises storage tank, medium water tank and radiating tube, radiating tube is positioned at storage tank, the top of medium water tank is provided with expansion drum, expansion drum is communicated with the medium water tank by tube connector, on described tube connector, be provided with the medium inlet, this medium inlet is positioned at the top of radiating tube, and this medium inlet extends to the storage tank outside by the medium ascending pipe.The solar water heater that the utility model provides is arranged on the medium inlet on the tube connector of expansion drum below with water tank, and be positioned at the top of radiating tube, in the process by medium inlet injected media fluid in the peripheral passage that medium water tank, radiating tube, heat collector are formed, when the liquid level of medium fluid reaches the medium inlet, medium fluid will flow out from the medium ascending pipe, close the medium inlet this moment, the liquid level of medium fluid will be above radiating tube, and below expansion drum, radiating tube can fully be utilized, and the heat exchanger effectiveness of radiating tube is higher; Does not reduce in space in the expansion drum yet, and expansion drum can normally play the effect that slows down pressure in the peripheral passage.
Description of drawings
Fig. 1 is a kind of structural representation of typical heat-conducted solar water heater;
Fig. 2 is the structural representation of solar water heater that the utility model provides with a kind of specific embodiment of water tank;
Fig. 3 is the structural representation of solar water heater that the utility model provides with the another kind of specific embodiment of water tank;
Fig. 4 is the structural representation of a kind of specific embodiment of solar water heater provided by the utility model;
Storage tank 201, hot water outlet 201-1, cold water inlet 201-2, medium water tank 202, media outlet 202-1, medium inlet 202-2, radiating tube 203, medium inlet 203-1, tube connector 204, expansion drum 205, medium inlet 206, medium ascending pipe 207, relief valve 208, electrically heated rod 209;
The specific embodiment
The utility model core provides a kind of solar water heater water tank, and this solar water heater is moderate with the liquid level of the medium fluid in the water tank, and the liquid level of medium fluid can not be higher than the bottom of expansion drum, can not be lower than the top of radiating tube yet.Another core of the present utility model provides a kind of solar water heater.
Below in conjunction with accompanying drawing content of the present utility model is described, following description only is exemplary and indicative, should any restriction not arranged to protection domain of the present utility model.
Please referring to Fig. 2, Fig. 2 is the structural representation of solar water heater that the utility model provides with a kind of specific embodiment of water tank.
As shown in Figure 2, the solar water heater water case that provides of the utility model comprises storage tank 201 and medium water tank 202.
In a kind of concrete embodiment, storage tank 201 is cylindric, and the outside of storage tank 201 is set with cylindrical shell body, is filled with insulation material between storage tank 201 and the shell body.Storage tank 201 is provided with hot water outlet 201-1 and cold water inlet 201-2, can replenish cold water in storage tank 201 by cold water inlet 201-2, can the hot water that heat in the storage tank 201 be discharged by hot water outlet 201-1.
Medium water tank 202 is arranged in the storage tank 201, and medium water tank 202 has certain volume, can hold medium fluid.Also be provided with radiating tube 203 in the storage tank 201, an end of radiating tube 203 is communicated with medium water tank 202, and the other end of radiating tube 203 forms medium inlet 203-1, and medium water tank 202 is provided with media outlet 202-1.
In a kind of concrete embodiment, radiating tube 203 shape in the shape of a spiral distributes, and radiating tube 203 is around in the outside of medium water tank, and this structure makes that the internal structure of storage tank 202 is compact more, and is convenient to medium water tank 202 and radiating tube 203 is installed in the storage tank 201.In order to improve the radiating effect of medium water tank 202 and radiating tube 203, has certain interval between medium water tank 202 and the radiating tube 203.
In the preferred version, radiating tube 203 is specially bellows, bellows have the compensation extraction duct axially, lateral angle is to the characteristics of thermal deformation, and the raised structures on the bellows has bigger area of dissipation, radiating effect is better.
More preferably in the scheme, radiating tube 203 can adopt corrugated stainless steel tubing, and corrugated stainless steel tubing has characteristics such as flexible good, light weight, corrosion-resistant, antifatigue, high-low temperature resistant.
The top of medium water tank 202 is provided with expansion drum 205, and expansion drum 205 is communicated with medium water tank 202 by tube connector 204.Expansion drum 205 is a hollow structure, and expansion drum 205 has certain volume, can the holding portion medium fluid.When the medium fluid in the peripheral passage expanded because of the volume that is heated, part MEDIA FLOW cognition entered in the expansion drum 205, can effectively alleviate the pressure in the peripheral passage.
Tube connector 204 between expansion drum 205 and the medium water tank 202 is provided with medium inlet 206, medium inlet 206 is positioned at the top of radiating tube 203, and medium inlet 206 extends to storage tank 201 outsides by medium ascending pipe 207, and medium ascending pipe 207 is horizontally disposed with substantially.
Further in the scheme; end, outer end at medium ascending pipe 207 is provided with relief valve 208; when the pressure in the peripheral passage is excessive; relief valve 208 is opened automatically; highly pressurised liquid in the peripheral passage or gases at high pressure are discharged; protect the peripheral passage effectively, improved the security of solar water heater.
In the preferred version, in order to guarantee under the cloudy situation that the user can normally use hot water, also be provided with electric heater unit in storage tank, in a kind of concrete embodiment, electric heater unit is an electrically heated rod 209.Like this, if when running into the cloudy day, heat collector can not absorb the energy of solar radiation, can adopt the water in 209 pairs of storage tanks of electrically heated rod 201 to heat, to guarantee that the user can normally use hot water.
The solar water heater that below introducing the utility model the provides operation principle of water tank.
The solar water heater water case that the utility model provides comprises storage tank 201, medium water tank 202 and radiating tube 203, radiating tube 203 is positioned at storage tank, the top of medium water tank 202 is provided with expansion drum 205, expansion drum 205 is communicated with medium water tank 202 by tube connector 204, on tube connector 204, be provided with medium inlet 206, medium inlet 206 is positioned at the top of radiating tube 203, and medium inlet 206 extends to storage tank 201 outsides by medium ascending pipe 207.The solar water heater that the utility model provides is arranged on medium inlet 206 on the tube connector 204 of expansion drum 205 belows with water tank, is positioned at the top of radiating tube 203.In the process by medium inlet 206 injected media fluid in the peripheral passage that medium water tank 202, radiating tube 203, heat collector are formed, when the liquid level of medium fluid reaches medium inlet 206, medium fluid will flow out from medium ascending pipe 207, close medium inlet 206 this moment, the liquid level of medium fluid will be above radiating tube 203, and below expansion drum 205, radiating tube 203 can fully be utilized, and the heat exchanger effectiveness of radiating tube 203 is higher; Does not reduce in space in the expansion drum 205 yet, and expansion drum 205 can normally play the effect that slows down pressure in the peripheral passage.
In the foregoing description, radiating tube shape in the shape of a spiral is around in the outside of medium water tank, the solar water heater that the utility model provides does not limit the shape and the position of radiating tube, and the shape of radiating tube can be provided with arbitrarily, and the position of radiating tube also not necessarily is around in the outside of medium water tank.
Please referring to Fig. 3, Fig. 3 is the structural representation of solar water heater that the utility model provides with the another kind of specific embodiment of water tank.
As shown in Figure 3, the solar water heater water tank that the utility model provides comprises storage tank 301 and medium water tank 302, medium water tank 302 is arranged in the storage tank 301, also be provided with radiating tube 303 in the storage tank 301, radiating tube 303 is arranged side by side with medium water tank 302, one end of radiating tube 303 is communicated with medium water tank 302, and the other end of radiating tube 303 forms medium inlet 303-1, and medium water tank 302 is provided with media outlet 302-1.All the other specific implementation process are similar to the above embodiments, no longer are described in detail at this.
Among the above embodiment, one end of radiating tube is communicated with the medium water tank, the other end of radiating tube forms the medium inlet, this medium inlet is communicated with the liquid outlet of heat collector, in this structure, the higher medium fluid elder generation process radiator of temperature from heat collector comes out flows into medium water tank medium fluid interior and that WATER AS FLOW MEDIUM the temperature inside the box is lower again and mixes.In this structure, the medium fluid in the radiating tube and the temperature difference of the water in the storage tank are bigger, and the heat exchange effect is better.The solar water heater that the utility model provides comprises also that with water tank an end of radiating tube is communicated with the medium water tank; the other end of radiating tube forms the situation of media outlet; this media outlet is communicated with the inlet of heat collector; in this structure; the higher medium fluid of temperature of coming out from heat collector is introduced into the medium water tank; mix with the medium fluid that WATER AS FLOW MEDIUM the temperature inside the box is lower; and then enter in the radiating tube; at this moment; medium fluid and the usefulness water temperature difference in the storage tank in the radiating tube are less; the heat exchange effect is relatively poor, does not advise adopting this structure, but this structure is also in protection domain of the present utility model.
Among the above embodiment, the medium water tank all is arranged in the storage tank, the solar water heater that the utility model provides is not limited thereto with water tank, the medium water tank can also be arranged on the storage tank outside, in the preferred version, in order to reduce the heat dissipation capacity of medium water tank, the medium water tank can be arranged in the heat-insulation layer between storage tank and the shell body.
The utility model also provides a kind of solar water heater, comprises heat collector and said solar-energy water heater water tank, and following examples are elaborated to this.
Please referring to Fig. 4, Fig. 4 is the structural representation of a kind of specific embodiment of solar water heater provided by the utility model.
As shown in Figure 4, the solar water heater that the utility model provides comprises heat collector 404 and water tank, and wherein water tank is the solar water heater water tank described in the foregoing description, and its concrete structure no longer is described in detail at this.
The liquid outlet 404-2 of medium inlet 403-1 and heat collector 404 is by pipeline connection, and the inlet 404-1 of media outlet 402-1 and heat collector 404 passes through pipeline connection.Medium water tank 402, radiating tube 403, heat collector 404 form the peripheral passage of a closure.
The medium fluid that temperature is lower in the medium water tank 402 is by media outlet 402-1, inlet 404-1 enters the pipeline in the heat collector 404, heat collector 404 absorbs solar radiation energy, medium fluid and heat collector 404 carry out heat exchange, the solar radiation energy that heat collector 404 absorbs is converted into the interior energy of medium fluid, thereby realize heating to medium fluid, the higher medium fluid of the temperature that was heated is from the liquid outlet 404-2 of heat collector 404, medium inlet 403-1 enters in the radiating tube 403, medium fluid enters in the WATER AS FLOW MEDIUM case 402 after circulating in radiating tube 403, the lower medium fluid of temperature enters in the heat collector 404 again in the medium water tank 402, by continuous circulation the medium fluid in the medium water tank 403 constantly is heated to higher temperature; Meanwhile, medium fluid is carried out heat exchange by the water in radiating tube 403, medium water tank 402 and the storage tank 401, the interior water that can constantly pass in the storage tank 401 of medium fluid, make the temperature of the water in the storage tank 401 constantly raise, thereby realize heating the water in the storage tank 401.
The solar water heater of this structure, the medium fluid that heated in heat collector 404 enters in the medium water tank 402 through behind the radiating tube 403 again, radiating tube 403 has bigger area of dissipation, medium fluid can be carried out sufficient heat exchange with the water in the storage tank 401 by radiating tube 403, heat exchanger effectiveness is higher, the water in the storage tank 401 can be heated to higher temperature.
In order to accelerate the circulation rate of medium fluid in the peripheral passage, improve heat exchanger effectiveness, in the preferred version, on the pipeline between the inlet 404-1 of the media outlet 402-1 of medium water tank 402 and heat collector 404, circulating pump 405 is set.For fear of circulating pump 405 the idle running phenomenon taking place, preferably circulating pump 405 is arranged on the media outlet 402-1 place near medium water tank 402.
The above only is the description of preferred implementation of the present utility model; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. solar water heater water tank, comprise storage tank, medium water tank and radiating tube, described storage tank is provided with hot water outlet and cold water inlet, described radiating tube is positioned at described storage tank, the top of described medium water tank is provided with expansion drum, described expansion drum is communicated with the medium water tank by tube connector, it is characterized in that, described tube connector is provided with the medium inlet, described medium inlet is positioned at the top of described radiating tube, and this medium inlet extends to described storage tank outside by the medium ascending pipe.
2. solar water heater water tank according to claim 1 is characterized in that, described medium water tank is positioned at described storage tank inside.
3. solar water heater water tank according to claim 2 is characterized in that, described radiating tube shape in the shape of a spiral is around in the outside of described medium water tank.
4. solar water heater water tank according to claim 2 is characterized in that, described radiating tube and described medium water tank are arranged side by side.
5. solar water heater water tank according to claim 1 is characterized in that, described medium water tank is positioned at described storage tank outside.
6. solar water heater water tank according to claim 5 is characterized in that, described storage tank also is set with shell body outward, is provided with heat-insulation layer between described storage tank and the described shell body.
7. solar water heater water tank according to claim 6 is characterized in that, described medium water tank is arranged in described heat-insulation layer.
8. a solar water heater comprises water tank and heat collector, it is characterized in that, described water tank is each described solar water heater water tank of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201620222U CN201488350U (en) | 2009-06-30 | 2009-06-30 | Water tank for solar water heater and solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201620222U CN201488350U (en) | 2009-06-30 | 2009-06-30 | Water tank for solar water heater and solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201488350U true CN201488350U (en) | 2010-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201620222U Expired - Fee Related CN201488350U (en) | 2009-06-30 | 2009-06-30 | Water tank for solar water heater and solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201488350U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644496B (en) * | 2009-06-30 | 2011-01-26 | 宁波维格曼电器有限公司 | Water tank used for solar water heater and solar water heater |
| CN102313391A (en) * | 2011-09-23 | 2012-01-11 | 山东力诺瑞特新能源有限公司 | Heat exchanger of split solar water heating system |
| CN102322700A (en) * | 2011-09-13 | 2012-01-18 | 无锡格林波特科技有限公司 | Medium injection and system pressure detection equipment for split-type solar water heater |
-
2009
- 2009-06-30 CN CN2009201620222U patent/CN201488350U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644496B (en) * | 2009-06-30 | 2011-01-26 | 宁波维格曼电器有限公司 | Water tank used for solar water heater and solar water heater |
| CN102322700A (en) * | 2011-09-13 | 2012-01-18 | 无锡格林波特科技有限公司 | Medium injection and system pressure detection equipment for split-type solar water heater |
| CN102322700B (en) * | 2011-09-13 | 2013-11-06 | 无锡格林波特科技有限公司 | Medium injection and system pressure detection equipment for split-type solar water heater |
| CN102313391A (en) * | 2011-09-23 | 2012-01-11 | 山东力诺瑞特新能源有限公司 | Heat exchanger of split solar water heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO VICMAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: HUANG WEIFANG Effective date: 20101209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101209 Address after: 315324 No. 989 South Road, Zhouxiang Town, Cixi, Zhejiang Patentee after: Ningbo Weigeman Electric Appliance Address before: 315324 No. 989 South Road, Zhouxiang Town, Cixi, Zhejiang Patentee before: Huang Weifang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20130630 |