CN201363994Y - Liquid low-temperature cooling device - Google Patents
Liquid low-temperature cooling device Download PDFInfo
- Publication number
- CN201363994Y CN201363994Y CNU2009200523598U CN200920052359U CN201363994Y CN 201363994 Y CN201363994 Y CN 201363994Y CN U2009200523598 U CNU2009200523598 U CN U2009200523598U CN 200920052359 U CN200920052359 U CN 200920052359U CN 201363994 Y CN201363994 Y CN 201363994Y
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- Prior art keywords
- liquid
- cooling tank
- cooling
- temperature
- closed circuit
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- Expired - Fee Related
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- 238000001816 cooling Methods 0.000 title claims abstract description 207
- 239000007788 liquid Substances 0.000 title claims abstract description 181
- 238000007710 freezing Methods 0.000 claims abstract description 54
- 230000008014 freezing Effects 0.000 claims abstract description 54
- 230000008676 import Effects 0.000 claims description 30
- 238000009413 insulation Methods 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 28
- 239000000523 sample Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000700 radioactive tracer Substances 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 3
- 239000003507 refrigerant Substances 0.000 description 13
- 230000009183 running Effects 0.000 description 7
- 230000009102 absorption Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000004087 circulation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002470 thermal conductor Substances 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000020965 cold beverage Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model relates to a liquid low temperature cooling device, specifically to a device which can automatically detect the freezing point and rapidly cool liquid to the lowest liquid temperature, and can provide low-temperature liquid normally even in the case of the coexistence of solid and liquid during the cooling process of the liquid. The liquid low temperature cooling device comprises a refrigeration system and a liquid low temperature cooling device, wherein the liquid low temperature cooling device consists of a heat-preserving barrel, a cooling tank, a refrigerating medium, a liquid discharging pump and a liquid discharging pipe. The utility model has a simple and reasonable structural design. During the cooling process of liquid, the freezing point of the liquid can be detected effectively by detecting the temperature change of the liquid and the temperature gradient of liquid cooling. Because of heat isolating blocks arranged in a liquid inlet pipe, the liquid discharging pipe and the cooling tank, the cooling device can ensure that the liquid cannot freeze to form blockage rapidly, thereby ensuring the normal operation of the device. In addition, the cooling device can be cleaned easily.
Description
Technical field
The utility model relates to a kind of liquid sub cooling device, specifically relate to a kind of liquid and in cooling procedure, can detect freezing point automatically, and automatically liquid is cooled fast to liquid minimum temperature, even when the liquid solid-liquid coexists, also can normally provide the device of cryogenic liquid.
Background technology
As everyone knows, material has three-state, solid-state, liquid, gaseous state, during solid-state and liquid coexistence is freezing point, in the life, people often like drinking cold drink, as water, beverage, wine etc. now, common people like on the rocks and drink with cooling, but liquid on the rocks also can only also water down the taste of drink simultaneously at zero degree, and some drink freezing point is in subzero, want to drink the more drink of low temperature, just need to detect automatically the liquid sub cooling device of drink freezing point.
Summary of the invention
For various drinks are cooled off, must possess the freezing point ability that detects drink, when being higher than the drink freezing point temperature, can set and realize temperature control by temperature, the minimum temperature of cooling can not be lower than the drink freezing point temperature.The utility model provides a kind of liquid sub cooling device, and this device adopts the refrigerating medium type of cooling, can not only reduce the temperature of drink safely and fast, and have the energy storage effect; In the drink temperature-fall period, utilize first: material needs to absorb or emit a large amount of latent heat in phase transition process, the less characteristics of variations in temperature when liquid coexists at solid, liquid; Second: the liquid that cooling source arrives first freezing point or close cooling source arrives first the freezing point characteristics, detects the freezing point of liquid; And the turnover of liquid is set to the position that is not easy to freeze, and liquid can not drunk because of influencing to freezing point in cooling procedure, also has the easy cleaning function simultaneously.
The purpose of this utility model is to realize like this.
The technical scheme that its technical problem that solves the utility model adopts is: one by compressor, condenser, capillary, evaporimeter, cooling tank, cooling tank, refrigerating medium, Pump for giving-out, the liquid sub cooling device that drain pipe is formed, compressor, condenser, capillary, evaporimeter is formed a refrigerating circuit, the cooling source of liquid is provided, cooling tank twines evaporimeter outward and places in the cooling tank, the import of cooling tank and outlet are arranged on outside the cooling tank, be packaged with refrigerating medium in the cooling tank, refrigerating medium possesses the low and drinkable characteristic of freezing point temperature, the top of cooling tank is the import of liquid, the bottom of cooling tank is the outlet of liquid, cooling tank is made up of the big metal of thermal conductivity factor, drain pipe is provided with Pump for giving-out, be provided with heat insulation in the import of cooling tank, last heat insulation is provided with liquid inlet pipe and blast pipe, the internal face that liquid inlet pipe and blast pipe leave cooling tank has a segment distance, outlet at cooling tank is provided with heat insulation down, following heat insulation is provided with the import and the fluid temperature probe of drain pipe, and the internal face that drain pipe and fluid temperature probe leave cooling tank has a segment distance.
The running of refrigerating circuit is by the control of refrigeration control panel.
This technical scheme is achieved in that
Compressor, condenser, capillary, evaporimeter are formed a refrigerating circuit, and the cooling source of liquid is provided.The gaseous refrigerant that compressor is compressed into HTHP with the gaseous refrigerant of low-temp low-pressure enters the liquid refrigerant of condenser condenses Cheng Zhongwen high pressure, become the liquid refrigerant of low-temp low-pressure to enter evaporimeter by capillary-compensated again, the external absorption refrigeration of evaporimeter, evaporimeter heat absorption back cold-producing medium flashes to the gaseous refrigerant of low-temp low-pressure and gets back to compressor compresses and circulation.
The cooling tank tank body twines evaporimeter outward and places in the cooling tank, and the import of cooling tank and outlet are arranged on outside the cooling tank, is packaged with refrigerating medium in the cooling tank, and refrigerating medium possesses the low and drinkable characteristic of freezing point temperature.The evaporimeter heat absorption makes refrigerating medium and the cooling of cooling tank tank body, liquid is cooled by the heat release of cooling tank internal face, for the safety evaporimeter can not directly contact the liquid that is cooled, and refrigerating medium also has drinkable characteristic, even leakage of refrigerant also can only be in refrigerating medium, the device of refrigeration system inefficacy cooling liquid can not re-use.
The top of cooling tank is the import of liquid, and the bottom of cooling tank is the outlet of liquid, and cooling tank is made up of the big metal of thermal conductivity factor, and drain pipe is provided with Pump for giving-out.This set can be when removing liquid, and liquid is residual in the minimizing cooling tank, and liquid cools is to carry out heat convection by the cooling tank internal face, and the big more exchange capability of heat of the thermal conductivity factor of cooling tank is strong more.
Be provided with heat insulation in the import of cooling tank, last heat insulation is provided with liquid inlet pipe and blast pipe, the internal face that liquid inlet pipe and blast pipe leave cooling tank has a segment distance, outlet at cooling tank is provided with heat insulation down, following heat insulation is provided with the import and the fluid temperature probe of drain pipe, and the internal face that the import of drain pipe and fluid temperature probe leave cooling tank has a segment distance.This is because cooling tank is made up of good thermal conductor, liquid near the cooling tank internal face freezes easily, heat insulation is not easy to freeze, the liquid inlet pipe, blast pipe and drain pipe are separately positioned on and just are not easy on heat insulation and the following heat insulation to ice to block up, liquid enters cooling tank by the liquid inlet pipe, air in the cooling tank is discharged by blast pipe, liquid can be full of cooling tank, liquid by drain pipe by the Pump for giving-out sucking-off, the fluid temperature probe is because left the cooling tank internal face that freezes easily, so can effectively detect the true temperature of liquid, the liquid in cooling tank is constant and normally cool the rate of temperature fall substantially constant, when the liquid in the cooling tank reaches the freezing point, the cooling tank internal face freezes earlier, and the heat-transfer capability of cooling tank and liquid descends, and the liquid rate of temperature fall can diminish.
The running of refrigerating circuit is by the control of refrigeration control panel.The chilling temperature of liquid is detected by the fluid temperature probe that is installed in the cooling tank, and when design temperature was higher than the freezing point of liquid temperature, the refrigeration control panel was controlled the unlatching of refrigerating circuit according to the design temperature of liquid or closed; When design temperature is lower than the freezing point of liquid temperature, liquid in the cooling tank is when reaching the freezing point, the cooling tank internal face freezes earlier, the heat-transfer capability of cooling tank and liquid descends, the liquid rate of temperature fall can diminish, the fluid temperature probe is judged this variation feedback refrigeration control panel, is determined the freezing point temperature of liquid; Judge that by freezing point temperature the refrigeration control panel is in time closed refrigerating circuit, and design temperature is increased on the freezing point temperature automatically.
Above-mentioned purpose also can further realize by following technical proposals.
Drawing on the described cooling tank to be provided with makes the liquid can be into and out of the closed circuit of cooling tank, closed circuit is provided with circulating pump, have one section pipe to press close to but face of the cold wall of cooling tank on the closed circuit, closed circuit is provided with tracer liquid and becomes solid-state survey freezing point temperature probe from liquid state.
Turn round by circulating pump, liquid flows in closed circuit, can strengthen the cooling effect of liquid in cooling tank, liquid in the cooling tank is lowered the temperature by the cooling of cooling tank cooling wall, therefore cooling tank cooling wall temperature is lower than the fluid temperature in the cooling tank, the closed circuit liquid in pipe of pressing close to the cooling tank cooling wall freezes earlier and stops up closed circuit, liquid in the closed circuit is no longer mobile, survey freezing point temperature on closed circuit probe heats up, and feeds back to the freezing point temperature that the refrigeration control panel can more accurate definite liquid; Refrigerating circuit running before liquid does not enter cooling tank simultaneously, the fluid temperature probe temperature reduces, surveying the freezing point temperature probe temperature does not reduce, illustrate and do not have liquid in the cooling tank, the refrigeration control panel is controlled at fluid temperature the freezing point temperature that is not less than water automatically, remains in the water freezing blocking pipeline in the fluid circulation system when preventing to clean; Also can be used as no liquid warning in the cooling tank in addition.
There is one section pipe to pass through refrigerating medium on the described closed circuit.
This is because refrigerant temperature is lower than cooling tank cooling wall temperature, and the one section pipe easier ice of closed circuit in refrigerating medium is stifled, can in time determine the freezing point of liquid temperature.
Described circulating pump and Pump for giving-out are same pump, the import of closed circuit is located at down on the heat insulation, the internal face that cooling tank is left in the import of closed circuit has a segment distance, the outlet of circulating pump closed circuit is provided with circulating valve, the import of drain pipe is located between outlet of circulating pump and the circulating valve, and drain pipe is provided with liquid valve.
Because drain pipe is outside cooling tank, liquid in the pipe can heat up owing to leaking heat, adopt such scheme that circulating pump and circulating valve are opened, liquid can circulate by circulating pump, the one, can strengthen the cooling effect of liquid in the cooling tank, and when needing fluid, as long as close circulating valve, open liquid valve, can discharge the liquid of low temperature; Also can reduce simultaneously by a Pump for giving-out.
Described survey freezing point temperature probe also can be a flow switch, and flow switch is installed on the closed circuit.
This is because flow switch sends flow signals when liquid flow, and when freeze stopping up, flow switch sends not flow signals, and flow signals does not feed back to refrigerating circuit control liquid and turns round on freezing point again.
Be provided with guide ring in the described cooling tank, guide ring is made up of the little material of thermal conductivity factor, and guide ring is provided with discharge orifice, and discharge orifice leaves the cooling tank internal face segment distance.
Because when fluid, uncolled liquid by feed tube pours cooling tank, can derive liquid temp raises, guide ring is set feed liquor can be directed at the heat exchange of cooling tank internal face, can directly not influence the liquid that has cooled off discharges, when cooling tank internal face and guide ring stopped up because of freezing, discharge orifice can leak into cooling tank with feed liquor.
The utility model structural design advantages of simple, in the cooling procedure of liquid, thermograde by tracer liquid variations in temperature and liquid cools, can effectively examine freezing point of liquid, be arranged on the heat insulation of liquid inlet and outlet pipe and cooling tank simultaneously, can guarantee the icing fast obstruction of liquid that can not again, guarantee that device normally moves.
Description of drawings
Fig. 1 is embodiment 1 structural representation;
Fig. 2 is embodiment 2 structural representations;
Fig. 3 is embodiment 3 structural representations;
Fig. 4 is embodiment 4 structural representations;
Fig. 5 is embodiment 5 structural representations;
Fig. 6 is embodiment 6 structural representations;
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The running of refrigerating circuit is by the control of refrigeration control panel.
The top of cooling tank 6 is the import of liquid, and the bottom of cooling tank 6 is the outlet of liquid, and cooling tank 6 is made up of the big metal of thermal conductivity factor, and drain pipe 9 is provided with Pump for giving-out 8.This set can be when removing liquid, and liquid is residual in the minimizing cooling tank 6, and liquid cools is to carry out heat convection by cooling tank 6 internal faces, and the big more exchange capability of heat of the thermal conductivity factor of cooling tank 6 is strong more.
Be provided with heat insulation 10 in the import of cooling tank 6, last heat insulation 10 is provided with liquid inlet pipe 11 and blast pipe 12, the internal face that liquid inlet pipe 11 and blast pipe 12 leave cooling tank 6 has a segment distance, outlet at cooling tank 6 is provided with heat insulation 13 down, following heat insulation 13 is provided with the import and the fluid temperature probe 14 of drain pipe 9, and drain pipe 9 and fluid temperature probe 14 internal faces that leave cooling tank 6 have a segment distance.This is because cooling tank 6 is made up of good thermal conductor, liquid near cooling tank 6 internal faces freezes easily, heat insulation is not easy to freeze, liquid inlet pipe 11, blast pipe 12 and drain pipe 9 are separately positioned on and just are not easy on heat insulation 10 and the following heat insulation 13 to ice to block up, liquid enters cooling tank 6 by liquid inlet pipe 11, air in the cooling tank 6 is discharged by blast pipe 12, liquid can be full of cooling tank 6, liquid passes through drain pipe 9 by Pump for giving-out 8 sucking-offs, fluid temperature probe 14 is because left cooling tank 6 internal faces that freeze easily, so can effectively detect the true temperature of liquid, the liquid in cooling tank 6 is constant and normally cool the rate of temperature fall substantially constant, when the liquid in the cooling tank 6 reaches the freezing point, cooling tank 6 internal faces freeze earlier, and cooling tank 6 descends with the heat-transfer capability of liquid, and the liquid rate of temperature fall can diminish.
The running of refrigerating circuit is by the control of refrigeration control panel.The chilling temperature of liquid is detected by the fluid temperature probe 14 that is installed in the cooling tank 6, and when design temperature was higher than the freezing point of liquid temperature, the refrigeration control panel was controlled the unlatching of refrigerating circuit according to the design temperature of liquid or closed; When design temperature is lower than the freezing point of liquid temperature, liquid in the cooling tank 6 is when reaching the freezing point, cooling tank 6 internal faces freeze earlier, cooling tank 6 descends with the heat-transfer capability of liquid, the liquid rate of temperature fall can diminish, fluid temperature probe 14 is judged this variation feedback refrigeration control panel, is determined the freezing point temperature of liquid; Judge that by freezing point temperature the refrigeration control panel is in time closed refrigerating circuit, and design temperature is increased on the freezing point temperature automatically.
By circulating pump 17 runnings, liquid flows in closed circuit 15, can strengthen the cooling effect of liquid in cooling tank 6, liquid in the cooling tank 6 is lowered the temperature by the cooling of cooling tank 6 cooling walls, therefore cooling tank 6 cooling wall temperature are lower than the fluid temperature in the cooling tank 6, closed circuit 15 liquid in pipe of pressing close to cooling tank 6 cooling walls freeze earlier and stop up closed circuit 15, liquid in the closed circuit 15 is no longer mobile, survey freezing point temperature on closed circuit 15 probe 16 heats up, and feeds back to the freezing point temperature that the refrigeration control panel can more accurate definite liquid; Refrigerating circuit running before liquid does not enter cooling tank 6 simultaneously, 14 temperature of popping one's head in fluid temperature reduce, 16 temperature of popping one's head in the survey freezing point temperature do not reduce, illustrate in the cooling tank 6 and do not have liquid, the refrigeration control panel is controlled at fluid temperature the freezing point temperature that is not less than water automatically, remains in the water freezing blocking pipeline in the fluid circulation system when preventing to clean; Also can be used as no liquid warning in the cooling tank 6 in addition.
This is because refrigerating medium 7 temperature are lower than cooling tank 6 cooling wall temperature, and the one section pipe easier ice of closed circuit 15 in refrigerating medium 7 is stifled, can in time determine the freezing point of liquid temperature.
Because drain pipe 9 is outside cooling tank 6, liquid in the pipe can heat up owing to leaking heat, adopt such scheme that circulating pump 17 and circulating valve 18 are opened, liquid can be by circulating pump 17 circulations, the one, can strengthen the cooling effect of liquid in the cooling tank 6, and when needing fluid, as long as close circulating valve 18, open liquid valve 19, can discharge the liquid of low temperature; Also can reduce simultaneously by a Pump for giving-out 8.
This is because flow switch 20 sends flow signals when liquid flow, and when freeze stopping up, flow switch 20 sends not flow signals, and flow signals does not feed back to refrigerating circuit control liquid and turns round on freezing point again.
Because when fluid, uncolled liquid by liquid inlet pipe 11 pours cooling tank 6, can derive liquid temp raises, guide ring 21 is set feed liquor can be directed at cooling tank 6 internal face heat exchange, can directly not influence the liquid that has cooled off discharges, when cooling tank 6 internal faces and guide ring 21 stopped up because of freezing, discharge orifice 22 can leak into feed liquor cooling tank 6.
Claims (5)
1, a kind of liquid sub cooling device, comprise compressor, condenser, capillary, evaporimeter, cooling tank, cooling tank, refrigerating medium, Pump for giving-out, drain pipe, by compressor, condenser, capillary, evaporimeter is formed a refrigerating circuit, the cooling source of liquid is provided, cooling tank twines evaporimeter outward and places in the cooling tank, the import of cooling tank and outlet are arranged on outside the cooling tank, be packaged with refrigerating medium in the cooling tank, refrigerating medium possesses the low and drinkable characteristic of freezing point temperature, the top of cooling tank is the import of liquid, the bottom of cooling tank is the outlet of liquid, cooling tank is made up of the big metal of thermal conductivity factor, drain pipe is provided with Pump for giving-out, it is characterized in that: described import at cooling tank is provided with heat insulation, last heat insulation is provided with liquid inlet pipe and blast pipe, the internal face that liquid inlet pipe and blast pipe leave cooling tank has a segment distance, outlet at cooling tank is provided with heat insulation down, following heat insulation is provided with the import and the fluid temperature probe of drain pipe, and the internal face that drain pipe and fluid temperature probe leave cooling tank has a segment distance.
2, a kind of liquid sub cooling device according to claim 1, it is characterized in that: it is characterized in that: draw on the described cooling tank to be provided with and make the liquid can be into and out of the closed circuit of cooling tank, closed circuit is provided with circulating pump, have one section pipe to press close to but face of the cold wall of cooling tank on the closed circuit, closed circuit is provided with tracer liquid and becomes solid-state survey freezing point temperature probe from liquid state.
3, a kind of liquid sub cooling device according to claim 2 is characterized in that: have one section pipe to pass through refrigerating medium on the described closed circuit.
4, a kind of liquid sub cooling device according to claim 2, it is characterized in that: described circulating pump and Pump for giving-out are same pump, the import of closed circuit is located at down on the heat insulation, the internal face that cooling tank is left in the import of closed circuit has a segment distance, the outlet of circulating pump closed circuit is provided with circulating valve, the import of drain pipe is located between outlet of circulating pump and the circulating valve, and drain pipe is provided with liquid valve.
5, according to the described a kind of liquid sub cooling device of claim 1 to 4, it is characterized in that: be provided with guide ring in the described cooling tank, guide ring is made up of the little material of thermal conductivity factor, and guide ring is provided with discharge orifice, and discharge orifice leaves the cooling tank internal face segment distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200523598U CN201363994Y (en) | 2009-03-07 | 2009-03-07 | Liquid low-temperature cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200523598U CN201363994Y (en) | 2009-03-07 | 2009-03-07 | Liquid low-temperature cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363994Y true CN201363994Y (en) | 2009-12-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200523598U Expired - Fee Related CN201363994Y (en) | 2009-03-07 | 2009-03-07 | Liquid low-temperature cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363994Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797179B (en) * | 2010-01-15 | 2011-07-20 | 浙江大学 | Low-temperature therapeutic equipment using coolant |
| CN105290974A (en) * | 2015-10-14 | 2016-02-03 | 中国人民解放军国防科学技术大学 | Multi-parameter high-stability polishing solution cycle control system and working method |
| CN107940845A (en) * | 2017-12-20 | 2018-04-20 | 厦门国仪科学仪器有限公司 | A kind of sterile ice machine and method |
| CN112649584A (en) * | 2020-12-18 | 2021-04-13 | 联想(北京)有限公司 | Liquid state detection method and device |
| CN113635134A (en) * | 2021-10-18 | 2021-11-12 | 徐州翔途机电有限公司 | Cooling device for machine tool |
-
2009
- 2009-03-07 CN CNU2009200523598U patent/CN201363994Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797179B (en) * | 2010-01-15 | 2011-07-20 | 浙江大学 | Low-temperature therapeutic equipment using coolant |
| CN105290974A (en) * | 2015-10-14 | 2016-02-03 | 中国人民解放军国防科学技术大学 | Multi-parameter high-stability polishing solution cycle control system and working method |
| CN107940845A (en) * | 2017-12-20 | 2018-04-20 | 厦门国仪科学仪器有限公司 | A kind of sterile ice machine and method |
| CN112649584A (en) * | 2020-12-18 | 2021-04-13 | 联想(北京)有限公司 | Liquid state detection method and device |
| CN113635134A (en) * | 2021-10-18 | 2021-11-12 | 徐州翔途机电有限公司 | Cooling device for machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xiong Xiaoqiang Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20120307 |