CN209768848U - Vacuum cooling machine with sectional cooling function - Google Patents
Vacuum cooling machine with sectional cooling function Download PDFInfo
- Publication number
- CN209768848U CN209768848U CN201920140462.1U CN201920140462U CN209768848U CN 209768848 U CN209768848 U CN 209768848U CN 201920140462 U CN201920140462 U CN 201920140462U CN 209768848 U CN209768848 U CN 209768848U
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- CN
- China
- Prior art keywords
- vacuum
- cooling
- air
- trap
- cooler
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- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000005057 refrigeration Methods 0.000 claims description 18
- 235000013305 food Nutrition 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 4
- 230000011218 segmentation Effects 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000021404 traditional food Nutrition 0.000 description 1
Landscapes
- Freezing, Cooling And Drying Of Foods (AREA)
Abstract
The utility model discloses a sectional cooling's vacuum cooler, including air-cooler and vacuum chamber, the air-cooler passes through return air duct and intake stack with the vacuum chamber and is connected, install air-supply line and return air valve on return air duct and the intake stack respectively, the vacuum chamber is connected with refrigerating system's cold-trap through the exhaust duct, the cold-trap links to each other with the liquid ring vacuum pump through the exhaust tube that has the vacuum liquid trap. The utility model discloses a segmentation vacuum cooling technique that forced air cooling and vacuum cooling combined together adopts the air-cooled cooling method to cool off the cooked food of high temperature to the uniform temperature earlier, then vacuum cooling to predetermined temperature again, can make the water loss rate of cooked food minimum.
Description
Technical Field
The utility model relates to a vacuum cooling machine technical field especially relates to a sectional cooling's vacuum cooling machine.
Background
in view of frequent food safety accidents, countries in the world, particularly European countries, set strict requirements on cooked food cooling technology, but traditional food cooling methods such as air cooling and water cooling have long cooling time, require 6-10 hours, cannot meet the requirement of rapid cooling, and the vacuum cooling technology is applied. The vacuum cooling technology is a cooling technology for rapidly cooling a water-containing material by water evaporation heat transfer under a closed vacuum condition. The food in vacuum cooling has uniform temperature distribution and quick cooling. However, the moisture loss in the vacuum cooling process is inevitable, because the vacuum cooling technology relies on the evaporation and heat absorption of the moisture in the material to refrigerate, and the moisture loss is the inevitable result of the vacuum cooling process. Substantial water loss is commercially unacceptable, thereby limiting the commercial development of vacuum cooling technology. In summary, how to develop a vacuum cooling device with fast cooling speed and low water loss rate is a task to be urgently solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sectional cooling's vacuum cooler to the technical defect who exists among the prior art to solve the big problem of above-mentioned traditional vacuum cooler moisture loss.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
The utility model provides a sectional cooling's vacuum cooler, includes air-cooler and vacuum chamber, the air-cooler passes through return air duct and intake stack with the vacuum chamber and is connected, install inlet valve and return air valve on return air duct and the intake stack respectively, the vacuum chamber is connected with refrigerating system's cold-trap through the exhaust duct, the cold-trap links to each other with the liquid ring vacuum pump through the aspiration line that has vacuum liquid trap.
The water inlet of the liquid ring vacuum pump is connected with a water inlet valve, a water outlet is connected with a water discharge valve, an air outlet of the liquid ring vacuum pump is connected with a gas-liquid separator, and a water discharge hole of the gas-liquid separator is connected with a water discharge pipe provided with the water discharge valve.
the cold trap is an evaporative condenser in the refrigeration system.
The refrigeration system further comprises an expansion valve, a condenser and a refrigeration compressor, wherein the refrigeration compressor is connected with the condenser and the cold trap, the condenser is connected with the expansion valve, and the expansion valve is connected with the cold trap.
Compared with the prior art, the beneficial effects of the utility model are that:
1. By the segmented vacuum cooling technology combining air cooling and vacuum cooling, the high-temperature cooked food is cooled to a certain temperature by adopting an air cooling mode, and then is cooled to a preset temperature in vacuum, so that the water loss rate of the cooked food can be minimized.
2. Through the vacuum cooling technology of sectional cooling, the cooling time of cooked food can be greatly reduced, thereby reducing the breeding of bacteria, prolonging the shelf life and improving the food quality.
Drawings
FIG. 1 is a system diagram of a sectionally cooled vacuum chiller of the present invention;
Reference numerals: 1-air cooler, 2-air inlet valve, 3-air return valve, 4-vacuum chamber, 5-expansion valve, 6-condenser, 7-refrigeration compressor, 8-cold trap, 9-vacuum liquid stopper, 10-liquid ring vacuum pump, 11-water inlet valve, 12-gas-water separator and 13-water discharge valve.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model discloses a sectional cooling's vacuum cooler, it is slow to consider traditional air-cooled speed, can not satisfy the sanitary standard, and the water loss rate that vacuum cooling caused is not accepted in the business, so combine two kinds of cooling methods, will be cooled off the object earlier and cool off to an appointed intermediate temperature through the air-cooler, rethread vacuum cooling's mode will be cooled off the object by cooling off to the final temperature.
As shown in fig. 1, the vacuum cooler for sectional cooling provided by the present invention comprises an air cooler 1 and a vacuum chamber 4, wherein the air cooler 1 is connected with the vacuum chamber 4 through an air conduit, and the air conduit is respectively provided with an air inlet valve 2 and an air return valve 3, so as to achieve the purpose of air cooling; the vacuum chamber 4 is also connected with the cold trap 8 through an air exhaust pipeline, the cold trap 8 is an evaporative condenser of the refrigeration system, and water vapor in the vacuum chamber 4 can be taken away, so that the vacuum degree in the vacuum chamber 4 is further improved, and the purpose of rapid cooling is achieved. The refrigeration system further comprises an expansion valve 5, a condenser 6 and a refrigeration compressor 7.
The cold trap 8 is connected with a liquid ring vacuum pump 10 through an air exhaust pipeline, and a vacuum liquid stopper 9 is installed on the air exhaust pipeline, so that water vapor backflow can be prevented when the vacuum chamber 4 is repressurized. The liquid ring vacuum pump 10 is provided with a gas-water separator 12, a water inlet valve 11 and a water discharge valve 13, wherein the water inlet valve 11 is directly connected with a tap water pipeline, and the water discharge valve 13 is directly connected with a sewer pipeline.
The vacuum chamber 4 is connected with a cold trap 8 through an air extraction pipeline, the cold trap 8 is an evaporative condenser of the refrigeration system, and the refrigeration system further comprises an expansion valve 5, a condenser 6 and a refrigeration compressor 7.
The utility model provides a this segmentation refrigerated vacuum cooler operation process explanation:
and (3) putting the cooked food with high temperature into the vacuum chamber 4, opening the air inlet valve 2 and the air return valve 3, operating the air cooler 1, and air-cooling the cooked food in the vacuum chamber 4. When the cooked food in the vacuum chamber 4 is cooled to the set temperature, the air cooler 1, the air inlet valve 2 and the air return valve 3 are closed through the automatic control system. At this point the refrigeration system is turned on, which includes expansion valve 5, condenser 6, refrigeration compressor 7, and cold trap 8.
After the refrigeration system is started, a water inlet valve 11 is opened, wherein one end of the water inlet valve 11 is connected with tap water, and the other end of the water inlet valve is connected with a liquid ring vacuum pump 10. The liquid ring vacuum pump 10 is turned on to evacuate the vacuum chamber 4. The water vapor in the vacuum chamber 4 is condensed in the cold trap 8 through a pipe, the condensed water can be directly discharged, and the cold trap 8 can further reduce the pressure in the vacuum chamber 4.
Install vacuum liquid blocking device 9 on the exhaust line that vacuum chamber 4 and liquid ring vacuum pump 10 are connected, vacuum liquid blocking device 9 can prevent effectively that vapor from backflowing when vacuum chamber 4 is repressed.
The liquid ring vacuum pump 10 is provided with a drain valve 13 and a gas-water separator 12. The gas-water separator 12 can effectively separate gas and liquid in the pipeline.
And when the cooked food is cooled to the final temperature, closing the liquid ring vacuum pump 10 and the water inlet valve 11, and closing the refrigerating system. The vacuum chamber 4 is repressed, and the cooled cooked food is taken out.
The air cooling is carried out on the cooked food before the vacuum cooling of the cooked food, so that the water loss rate of the cooked food is reduced, and the cooling time of the cooked food is ensured within a reasonable range, thereby reducing the breeding of bacteria, prolonging the shelf life and improving the food quality.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a sectional cooling's vacuum cooler, its characterized in that, includes air-cooler and vacuum chamber, the air-cooler passes through return air duct and intake stack with the vacuum chamber and is connected, install inlet valve and return air valve on return air duct and the intake stack respectively, the vacuum chamber is connected with refrigerating system's cold-trap through the exhaust duct, the cold-trap links to each other with the liquid ring vacuum pump through the exhaust line that has the vacuum liquid trap.
2. The vacuum cooling machine of claim 1, wherein the water inlet of the liquid ring vacuum pump is connected with a water inlet valve, the water outlet is connected with a water outlet valve, the air outlet of the liquid ring vacuum pump is connected with a gas-liquid separator, and the water outlet of the gas-liquid separator is connected with a water outlet pipe provided with the water outlet valve.
3. The sectionally cooled vacuum chiller of claim 1 wherein said cold trap is an evaporative condenser in a refrigeration system.
4. The sectionally cooled vacuum chiller according to claim 1 wherein said refrigeration system further comprises an expansion valve, a condenser and a refrigeration compressor, said refrigeration compressor being connected to the condenser and the cold trap, said condenser being connected to the expansion valve, said expansion valve being connected to the cold trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920140462.1U CN209768848U (en) | 2019-01-28 | 2019-01-28 | Vacuum cooling machine with sectional cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920140462.1U CN209768848U (en) | 2019-01-28 | 2019-01-28 | Vacuum cooling machine with sectional cooling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209768848U true CN209768848U (en) | 2019-12-13 |
Family
ID=68793806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920140462.1U Expired - Fee Related CN209768848U (en) | 2019-01-28 | 2019-01-28 | Vacuum cooling machine with sectional cooling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209768848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109673924A (en) * | 2019-01-28 | 2019-04-26 | 天津商业大学 | A kind of vacuum cooled machine of sub-sectional cooling |
-
2019
- 2019-01-28 CN CN201920140462.1U patent/CN209768848U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109673924A (en) * | 2019-01-28 | 2019-04-26 | 天津商业大学 | A kind of vacuum cooled machine of sub-sectional cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |