CN105157139A - Portable air cooled chilled water storage system - Google Patents
Portable air cooled chilled water storage system Download PDFInfo
- Publication number
- CN105157139A CN105157139A CN201510351543.2A CN201510351543A CN105157139A CN 105157139 A CN105157139 A CN 105157139A CN 201510351543 A CN201510351543 A CN 201510351543A CN 105157139 A CN105157139 A CN 105157139A
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- China
- Prior art keywords
- escape pipe
- storage system
- water storage
- chilled water
- gas tank
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F2005/0032—Systems storing energy during the night
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention provides a portable air cooled chilled water storage system and belongs to the field of energy storage. The system comprises a cold accumulation pool and an air pump, wherein an air inlet of the air pump is communicated with an air inlet pipe, an air outlet of the air pump is communicated with a first air outlet pipe, and the inner end of the first air outlet pipe stretches into the cold accumulation pool from the top of the cold accumulation pool; an electromagnetic valve is arranged on the first air outlet pipe, an air tank is arranged in the cold accumulation pool, a second air outlet pipe is connected to the air tank, and the outer end of the second air outlet pipe extends out of the cold accumulation pool and is provided with a first ball valve; a cold air bag is connected to a port of the outer end of the second air outlet pipe in a threaded mode and comprises a bag body and an inflation part, a second ball valve is arranged on the inflation part which is connected to the second air outlet pipe in a threaded mode, and the bag body comprises an expansion part and a metal part; one end of the expansion part is fixedly connected to the inner wall of the metal part, a pressure sensor is fixedly connected to the inner wall of the metal part, and an alarm lamp is arranged on the metal part and controlled by the pressure sensor. The system can be taken out in the cold air mode and is convenient to carry and light in weight.
Description
Technical field
The invention belongs to accumulation of energy field, relate to a kind of ventilation type chilled water storage system with function in addition.
Background technology
Water cold storage technology utilizes electricity price between peak and valley, is stored in water at low ebb rate period by cold, and the peak of power consumption period uses the cryogenic freezing water extraction stored cold for idle call by day.When air-conditioning service time and non-air-conditioning service time and electrical network peak and low ebb synchronous time, use when just the idle call electricity in electrical network rush hour can be transferred to electrical network low ebb, reach the object of power cost saving.The most ripe and the effective cold-storage mode of current use is natural layering.
Natural layering and thermal stratification, thermal stratification type water cold storage utilizes water density when different temperatures this physical characteristic different, relies between density official post warm water and cold water and keep separating, and avoids cold water and warm water mixing to cause loss of refrigeration capacity.
The density of water about 4 DEG C time is maximum, and along with the high-density of water temperature reduces gradually, utilize this physical characteristic of water, the water making temperature low is stored in the bottom in pond, and the high water level of temperature is in the top being stored in pond.Design good thermal stratification type water cold storage pond and form a caloic switching layer between warm water district, top and cold water area, bottom.One stable and thickness is little caloic switching layer improves the key of cold-storage efficiency.
At present; camp in many places all popular pitching a tent; but period can meet various problem, especially when summer, field air oxygen detrition is sultry; people can not feel well often; people often can carry ice cube and freeze to tent, but the large and quality weight of ice cube volume, be not easy to carry; and be not easy to preserve, easily cause cold to leak.
Summary of the invention
The object of the invention is for the above-mentioned problems in the prior art, provide a kind of ventilation type chilled water storage system with function in addition, this ventilation type chilled water storage system with function in addition can realize the mode tyre by cold air, easy to carry, quality is light, solves the inconvenience of carrying ice cube and the quality problem such as heavily.
Object of the present invention realizes by following technical proposal: a kind of ventilation type chilled water storage system with function in addition, it is characterized in that: described ventilation type chilled water storage system comprises cylindrical circular cold accumulating pond, described cold accumulating pond outer wall is enclosed with one layer of heat preservation layer, in described cold accumulating pond, there is refrigerator pipes, described ventilation type chilled water storage system chilled water storage system also comprises air pump, the air inlet of described air pump is communicated with air inlet pipe, one end of described air inlet pipe is communicated with described air pump, the other end of described air inlet pipe is communicated with extraneous, the gas outlet place of described air pump is communicated with escape pipe one, the outer end of described escape pipe one is communicated with described air pump, the inner of described escape pipe one is stretched into from the top of described cold accumulating pond, described escape pipe one has magnetic valve, in described cold accumulating pond, there is cylindrical circular gas tank, described gas tank is connected in the bottom of described cold accumulating pond, the inner of described escape pipe one is communicated with the top of described gas tank, described gas tank is also communicated with escape pipe two, the inner of described escape pipe two is communicated with described gas tank, the outer end of described escape pipe two passes the top of described cold accumulating pond, the outer end of described escape pipe two has ball valve one, the port, outer end of described escape pipe two is bolted with cool air bag, described cool air bag comprises utricule and charging portion, described charging portion communicates with described utricule, described charging portion have ball valve two and be bolted in described escape pipe two, described utricule comprises the enlarged portion be made up of elastic heat preserving material and the metal section be made up of metal material, one end of described enlarged portion is fixed on the inwall of described metal section, described metal section inwall is fixed with pressure sensor, described metal section also has alarm lamp, described pressure sensor controls described alarm lamp.
In this chilled water storage system, air pump is being worked at night, the refrigeration work of cold accumulating pond is also carrying out simultaneously, by the air intake in the external world, constantly be delivered in gas tank by escape pipe one, make to form high pressure in gas tank, gas tank stores completely, air pump quits work after midnight, pressure-air cools in gas tank, being undertaken colding and heat succeed each other by the cold water in the inwall of gas tank and cold accumulating pond makes air be cooled, whole gas tank all immerses in cold accumulating pond, refrigeration is remarkable, efficiency is high, above-mentioned is process air being become cold air, the Main Function of this refrigeration system supplies cold air in room, consider the demand that people camp, this chilled water storage system has the function of cold air in addition, open on ball valve one and cool air bag ball valve two, cold air in gas tank enters in cool air bag to be inflated cool air bag, enlarged portion is expanded, ball valve one and ball valve two is closed when inflating saturated, take off cool air bag and can realize function in addition, cool air bag quality is light, easy to carry, compared to carrying ice cube, there is very many advantages.In the process of inflation; the tolerance that operator often can lose control of cool air bag causes cool air bag inflate too much and explode; when aeration quantity reaches blast critical value; gas pressure activation pressure sensor, pressure sensor is communicated with alarm lamp by control module, makes alarm lamp send flicker and the sound; operator is reminded to close ball valve two; represent that inflation completes, humanization designing, improves the service life of security performance and cool air bag.Metal section can not deform in the process of inflation, alarm lamp and pressure sensor and power supply and control module is fixed, designs ingenious.
A kind ofly to have in the ventilation type chilled water storage system of function in addition above-mentioned, described metal section outer wall scribbles thermal insulation paint.
Thermal insulation paint can prevent cold by metal section loss, plays insulation effect.
A kind ofly to have in the ventilation type chilled water storage system of function in addition above-mentioned, described gas tank is iron flask.
A kind ofly to have in the ventilation type chilled water storage system of function in addition above-mentioned, described escape pipe one and escape pipe two are metal tube.
The heat conductivility of metal material is strong, and gas can be made also to be cooled in the course of conveying of escape pipe one and escape pipe two.
A kind ofly to have in the ventilation type chilled water storage system of function in addition above-mentioned, described gas tank has the cooling end that described gas tank both sides are run through in many places.
Cooling end can increase the contact area of gas tank and cold accumulating pond inner cold water greatly, thus increases the film-cooled heat of gas, and refrigerating efficiency is promoted.
A kind ofly to have in the ventilation type chilled water storage system of function in addition above-mentioned, the end, one end of described escape pipe two is positioned at the bottom of described gas tank.
Gas in gas tank is effectively discharged, can not be trapped in gas tank.
A kind ofly to have in the ventilation type chilled water storage system of function in addition above-mentioned, described gas tank top has adapter portion one and the adapter portion two of protrusion.
Escape pipe one and escape pipe two communicate with gas tank respectively by adapter portion one and adapter portion two.
A kind ofly to have in the ventilation type chilled water storage system of function in addition above-mentioned, the area of described enlarged portion is greater than the area of described metal section and described charging portion is arranged in described metal section.
Metal material can not be out of shape in the process of inflation, enables stable being fixed in metal section of charging portion.
Compared with prior art, the ventilation type chilled water storage system originally having function in addition has the following advantages:
The ventilation type chilled water storage system 1, originally with in addition function carries out colding and heat succeed each other with the cold water in cold accumulating pond by the inwall of gas tank and air is cooled, and whole gas tank all immerses in cold accumulating pond, and significantly, efficiency is high for refrigeration.
2, originally have and direct after midnight in the ventilation type chilled water storage system of in addition function pressure-air to be cooled, the gas discharged daytime is directly cold air, directly gone less to utilize cold water and space air to carry out the process colded and heat succeed each other in existing chilled water storage system, refrigerating speed is fast, and efficiency is high.
The air pump 3, originally with the ventilation type chilled water storage system of function in addition avoids peak period work by day, only carries out the work of inflating at night, saves electricity price greatly.
The gas tank 4, originally with the ventilation type chilled water storage system of in addition function has the cooling end running through gas tank both sides in many places.Cooling end can increase the contact area of gas tank and cold accumulating pond inner cold water greatly, thus increases the film-cooled heat of gas, and refrigerating efficiency is promoted.
The cool air bag quality 5, originally with the ventilation type chilled water storage system of function is in addition light, easy to carry, has very many advantages compared to carrying ice cube.
6, originally there is the ventilation type chilled water storage system cool air bag of function in addition in the process of inflation; the tolerance that operator often can lose control of cool air bag causes cool air bag inflate too much and explode; when aeration quantity reaches blast critical value; gas pressure activation pressure sensor, pressure sensor is communicated with alarm lamp by control module, makes alarm lamp send flicker and the sound; operator is reminded to close ball valve two; represent that inflation completes, humanization designing, improves the service life of security performance and cool air bag.
The metal section 7, originally with the ventilation type chilled water storage system of in addition function can not deform in the process of inflation, alarm lamp and pressure sensor and power supply and control module is fixed, designs ingenious.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the ventilation type chilled water storage system originally with function in addition.
Fig. 2 is the cool air bag structural representation of the ventilation type chilled water storage system originally with function in addition.
Fig. 3 is the gas tank structural representation of the ventilation type chilled water storage system originally with function in addition.
In figure, 1, cold accumulating pond; 2, air pump; 3, air inlet pipe; 4, escape pipe one; 5, magnetic valve; 6, gas tank; 6a, cooling end; 6b, adapter portion one; 6c, adapter portion three; 7, escape pipe two; 8, ball valve one; 9, cool air bag; 9a, utricule; 9a1, enlarged portion; 9a2, metal section; 9b, charging portion; 10, ball valve two; 11, pressure sensor; 12, alarm lamp.
Detailed description of the invention
As shown in Figure 1 to Figure 3, the ventilation type chilled water storage system originally with function in addition comprises cylindrical circular cold accumulating pond 1, cold accumulating pond 1 outer wall is enclosed with one layer of heat preservation layer, in cold accumulating pond 1, there is refrigerator pipes, ventilation type chilled water storage system chilled water storage system also comprises air pump 2, the air inlet of air pump 2 is communicated with air inlet pipe 3, one end of air inlet pipe 3 is communicated with air pump 2, the other end of air inlet pipe 3 is communicated with extraneous, the gas outlet place of air pump 2 is communicated with escape pipe 1, the outer end of escape pipe 1 is communicated with air pump 2, the inner of escape pipe 1 is stretched into from the top of cold accumulating pond 1, escape pipe 1 has magnetic valve 5, there is in cold accumulating pond 1 cylindrical circular gas tank 6, gas tank 6 is connected in the bottom of cold accumulating pond 1, the inner of escape pipe 1 is communicated with the top of gas tank 6, gas tank 6 is also communicated with escape pipe 27, the inner of escape pipe 27 is communicated with gas tank 6, the outer end of escape pipe 27 passes the top of cold accumulating pond 1, the outer end of escape pipe 27 has ball valve 1, the port, outer end of escape pipe 27 is bolted with cool air bag 9, cool air bag 9 comprises utricule 9a and charging portion 9b, charging portion 9b communicates with utricule 9a, charging portion 9b have ball valve 2 10 and be bolted in escape pipe 27, utricule 9a comprises the enlarged portion 9a1 be made up of elastic heat preserving material and the metal section 9a2 be made up of metal material, one end of enlarged portion 9a1 is fixed on the inwall of metal section 9a2, metal section 9a2 inwall is fixed with pressure sensor 11, metal section 9a2 also has alarm lamp 12, pressure sensor 11 controls alarm lamp 12.Gas tank 6 is iron flask.
In this chilled water storage system, air pump 2 is being worked at night, the refrigeration work of cold accumulating pond 1 is also carrying out simultaneously, by the air intake in the external world, constantly be delivered in gas tank 6 by escape pipe 1, make to form high pressure in gas tank 6, gas tank 6 stores completely, air pump 2 quits work after midnight, pressure-air cools in gas tank 6, being undertaken colding and heat succeed each other by the cold water in the inwall of gas tank 6 and cold accumulating pond 1 makes air be cooled, whole gas tank 6 all immerses in cold accumulating pond 1, refrigeration is remarkable, efficiency is high, above-mentioned is process air being become cold air, the Main Function of this refrigeration system supplies cold air in room, consider the demand that people camp, this chilled water storage system has the function of cold air in addition, open on ball valve 1 and cool air bag 9 ball valve 2 10, cold air in gas tank 6 enters in cool air bag 9 and inflates cool air bag 9, enlarged portion 9a1 expands, ball valve 1 and ball valve 2 10 is closed when inflating saturated, take off cool air bag 9 and can realize function in addition, cool air bag 9 quality is light, easy to carry, compared to carrying ice cube, there is very many advantages.In the process of inflation; the tolerance that operator often can lose control of cool air bag 9 causes cool air bag 9 inflate too much and explode; when aeration quantity reaches blast critical value; gas pressure activation pressure sensor 11, pressure sensor 11 is communicated with alarm lamp 12 by control module, makes alarm lamp 12 send flicker and the sound; operator is reminded to close ball valve 2 10; represent that inflation completes, humanization designing, improves the service life of security performance and cool air bag 9.Metal section 9a2 can not deform in the process of inflation, alarm lamp 12 and pressure sensor 11 and power supply and control module is fixed, designs ingenious.
Metal section 9a2 outer wall scribbles thermal insulation paint.Thermal insulation paint can prevent cold by metal section 9a2 loss, plays insulation effect.
Escape pipe 1 and escape pipe 27 are metal tube.The heat conductivility of metal material is strong, and gas can be made also to be cooled in the course of conveying of escape pipe 1 and escape pipe 27.
As shown in figures 1 and 3, gas tank 6 has the cooling end 6a running through gas tank 6 both sides in many places.Cooling end 6a can increase the contact area of gas tank 6 and cold accumulating pond 1 inner cold water greatly, thus increases the film-cooled heat of gas, and refrigerating efficiency is promoted.
The end, one end of escape pipe 27 is positioned at the bottom of gas tank 6.Gas in gas tank 6 is effectively discharged, can not be trapped in gas tank 6.
Gas tank 6 top has adapter portion one 6b and the adapter portion two of protrusion.Escape pipe 1 and escape pipe 27 communicate with gas tank 6 respectively by adapter portion one 6b and adapter portion two.
As depicted in figs. 1 and 2, the area of enlarged portion 9a1 is greater than the area of metal section 9a2 and charging portion 9b is arranged in metal section 9a2.Metal material can not be out of shape in the process of inflation, enables stable being fixed on metal section 9a2 of charging portion 9b.
Cool air bag 9 quality originally with the ventilation type chilled water storage system of function is in addition light, easy to carry, has very many advantages compared to carrying ice cube.Cool air bag 9 is in the process of inflation; the tolerance that operator often can lose control of cool air bag 9 causes cool air bag 9 inflate too much and explode; when aeration quantity reaches blast critical value; gas pressure activation pressure sensor 11, pressure sensor 11 is communicated with alarm lamp 12 by control module, makes alarm lamp 12 send flicker and the sound; operator is reminded to close ball valve 2 10; represent that inflation completes, humanization designing, improves the service life of security performance and cool air bag 9.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (8)
1. one kind has the ventilation type chilled water storage system of function in addition, it is characterized in that: described ventilation type chilled water storage system comprises cylindrical circular cold accumulating pond, described cold accumulating pond outer wall is enclosed with one layer of heat preservation layer, in described cold accumulating pond, there is refrigerator pipes, described ventilation type chilled water storage system chilled water storage system also comprises air pump, the air inlet of described air pump is communicated with air inlet pipe, one end of described air inlet pipe is communicated with described air pump, the other end of described air inlet pipe is communicated with extraneous, the gas outlet place of described air pump is communicated with escape pipe one, the outer end of described escape pipe one is communicated with described air pump, the inner of described escape pipe one is stretched into from the top of described cold accumulating pond, described escape pipe one has magnetic valve, in described cold accumulating pond, there is cylindrical circular gas tank, described gas tank is connected in the bottom of described cold accumulating pond, the inner of described escape pipe one is communicated with the top of described gas tank, described gas tank is also communicated with escape pipe two, the inner of described escape pipe two is communicated with described gas tank, the outer end of described escape pipe two passes the top of described cold accumulating pond, the outer end of described escape pipe two has ball valve one, the port, outer end of described escape pipe two is bolted with cool air bag, described cool air bag comprises utricule and charging portion, described charging portion communicates with described utricule, described charging portion have ball valve two and be bolted in described escape pipe two, described utricule comprises the enlarged portion be made up of elastic heat preserving material and the metal section be made up of metal material, one end of described enlarged portion is fixed on the inwall of described metal section, described metal section inwall is fixed with pressure sensor, described metal section also has alarm lamp, described pressure sensor controls described alarm lamp.
2. a kind of ventilation type chilled water storage system with function in addition according to claim 1, is characterized in that, described metal section outer wall scribbles thermal insulation paint.
3. a kind of ventilation type chilled water storage system with function in addition according to claim 1 and 2, it is characterized in that, described gas tank is iron flask.
4. a kind of ventilation type chilled water storage system with function in addition according to claim 1 and 2, it is characterized in that, described escape pipe one and escape pipe two are metal tube.
5. a kind of ventilation type chilled water storage system with function in addition according to claim 1 and 2, is characterized in that described gas tank having the cooling end that described gas tank both sides are run through in many places.
6. a kind of ventilation type chilled water storage system with function in addition according to claim 1 and 2, it is characterized in that, the end, one end of described escape pipe two is positioned at the bottom of described gas tank.
7. a kind of ventilation type chilled water storage system with function in addition according to claim 1 and 2, it is characterized in that, described gas tank top has adapter portion one and the adapter portion two of protrusion.
8. a kind of ventilation type chilled water storage system with function in addition according to claim 1 and 2, it is characterized in that, the area of described enlarged portion is greater than the area of described metal section and described charging portion is arranged in described metal section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351543.2A CN105157139A (en) | 2015-06-24 | 2015-06-24 | Portable air cooled chilled water storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351543.2A CN105157139A (en) | 2015-06-24 | 2015-06-24 | Portable air cooled chilled water storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105157139A true CN105157139A (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510351543.2A Pending CN105157139A (en) | 2015-06-24 | 2015-06-24 | Portable air cooled chilled water storage system |
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| CN (1) | CN105157139A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE859179A (en) * | 1976-10-01 | 1978-01-16 | Draegerwerk Ag | PROTECTIVE CLOTHING AGAINST HEAT AND GAS |
| CN2147748Y (en) * | 1992-10-20 | 1993-12-01 | 邹先欣 | Cold air vest |
| CN1126815A (en) * | 1995-11-20 | 1996-07-17 | 青岛市市北区四方化工研究所 | Refrigerating bag |
| CN201001805Y (en) * | 2006-10-11 | 2008-01-09 | 韩湘峰 | Portable coolant sprayer |
| CN202714338U (en) * | 2012-07-13 | 2013-02-06 | 王思瑞 | Refrigerating backpack |
| CN206324904U (en) * | 2016-08-31 | 2017-07-14 | 郑孟杰 | A kind of postoperative cooling anti-inflammatory device of new Maxillary region |
-
2015
- 2015-06-24 CN CN201510351543.2A patent/CN105157139A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE859179A (en) * | 1976-10-01 | 1978-01-16 | Draegerwerk Ag | PROTECTIVE CLOTHING AGAINST HEAT AND GAS |
| CN2147748Y (en) * | 1992-10-20 | 1993-12-01 | 邹先欣 | Cold air vest |
| CN1126815A (en) * | 1995-11-20 | 1996-07-17 | 青岛市市北区四方化工研究所 | Refrigerating bag |
| CN201001805Y (en) * | 2006-10-11 | 2008-01-09 | 韩湘峰 | Portable coolant sprayer |
| CN202714338U (en) * | 2012-07-13 | 2013-02-06 | 王思瑞 | Refrigerating backpack |
| CN206324904U (en) * | 2016-08-31 | 2017-07-14 | 郑孟杰 | A kind of postoperative cooling anti-inflammatory device of new Maxillary region |
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Application publication date: 20151216 |
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