CN103156261A - Absorption type vacuum cooling device for food - Google Patents
Absorption type vacuum cooling device for food Download PDFInfo
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- CN103156261A CN103156261A CN2013101122980A CN201310112298A CN103156261A CN 103156261 A CN103156261 A CN 103156261A CN 2013101122980 A CN2013101122980 A CN 2013101122980A CN 201310112298 A CN201310112298 A CN 201310112298A CN 103156261 A CN103156261 A CN 103156261A
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- absorption type
- vacuum
- water vessel
- cooling device
- concentrated solution
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Abstract
The invention discloses an absorption type vacuum cooling device for food and provides a device which can achieve absorption type vacuum cooling to food by utilizing concentrated solution to absorb water vapor evaporated due to vacuum. The absorption type vacuum cooling device comprises a closed vacuum box, an absorption type water catcher and a vacuum pump, wherein the absorption type water catcher consists of a box body and concentrated solution filled in the box body for absorbing water vapor, an outlet of the closed vacuum box is connected with the box body of the absorption type water catcher by a pipeline, an outlet on the box body of the absorption type water catcher is connected with the inlet of the vacuum pump, gas in the closed vacuum box enters the absorption type water catcher, the concentrated solution in the absorption type water catcher absorb water vapor in the gas, the dry gas enters the vacuum pump and is exhausted through the vacuum pump. The absorption type vacuum cooling device adopts the absorption type water catcher to absorb the water vapor, the water absorbing capacity of the concentrated solution in the absorption type water catcher is higher than the frosting capacity of the surface of the evaporator, and the absorption type vacuum cooling device has high food cooling speed, simple structure and low manufacturing cost.
Description
Technical field
The present invention relates to the vacuum cooled field, particularly relate to a kind of device that utilizes principle of absorption to realize foods vacuum cooling.
Background technology
Vacuum Cooling Technology on Food is to adopt vavuum pump to extract air in the airtight vacuum case, reduce the boiling point of water, allow the food surface moisture that is placed in the airtight vacuum case evaporate, the absorbing food product self heat is to reach the purpose of fast reducing food temperature, and this technology is widely used in the pre-refrigeration technique of food.When vacuum cooled, cause the damage of vavuum pump for preventing the moisture evaporation, the normal water vessel that uses with refrigeration system allows the moisture that is evaporated from food surface be condensed into frost at evaporator surface.In addition, the evaporation of moisture can strengthen gas volume under vacuum state, reduces vavuum pump efficient, and water vessel just can reduce cool time, improves cooling effectiveness.
The vacuum cooling unit that adopts refrigeration system to catch water is had relatively high expectations to refrigeration system, usually needs lower evaporating temperature, will reduce like this Energy Efficiency Ratio of refrigeration system.In addition when serious as the evaporator surface frosting of water vessel, the operation that need to defrost, vacuum cooling unit can not continuous operation.
Summary of the invention
The objective of the invention is for the technological deficiency that exists in prior art, provide a kind of concentrated solution of utilizing to absorb the water vapour that is evaporated due to vacuum, realize the absorption foods vacuum cooling device of the absorption vacuum cooled of food.
For realizing that the technical scheme that purpose of the present invention adopts is:
a kind of absorption foods vacuum cooling device, comprise the airtight vacuum case, absorption water vessel and vavuum pump, described absorption water vessel is comprised of casing and the concentrated solution that is filled in the absorption water vapour in casing, the outlet of described airtight vacuum case is connected with the casing of described absorption water vessel by pipeline, outlet on the casing of described absorption water vessel is connected with the entrance of described vavuum pump, gas in described airtight vacuum case enters described absorption water vessel, concentrated solution in described absorption water vessel absorbs the water vapour in gas, dry gas enters described vavuum pump, discharge through vavuum pump.
The concentrated solution of described adsorbed water steam is lithium bromide, lithium chloride or lithium iodide solution.
Between described airtight vacuum case and described absorption water vessel casing the outlet of connecting line be positioned at described absorption water vessel concentrated solution liquid level below.
Outlet on described absorption water vessel casing is positioned at the top of described absorption water vessel casing.
Compared with prior art, the invention has the beneficial effects as follows:
1, in vacuum cooling unit of the present invention, adopt absorption water vessel to realize the absorption of water vapour, the energy force rate evaporator surface frosting ability that the concentrated solution in absorption water vessel absorbs moisture is strong, and the food cooling velocity is fast.
2, vacuum cooling unit of the present invention adopts absorption water vessel to realize the absorption of water vapour, and simple in structure, cost is low.
3, the concentrated solution in vacuum cooling unit of the present invention is when saturated, can utilize solar energy, industrial exhaust heat equal energy source to realize that concentrated solution removes the process of moisture, is conducive to saves energy.
4, vacuum cooling unit of the present invention can be realized the continuity work of vacuum cooled by adopting the two above absorption water vessels of cover, has improved production efficiency.And cost is well below the cost of two cover refrigeration systems.
Description of drawings
Figure 1 shows that the schematic diagram of the absorption foods vacuum cooling device of the present invention.
In figure: 1. airtight vacuum case, 2. absorption water vessel, 3. vavuum pump.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the schematic diagram of the absorption foods vacuum cooling device of the present invention, comprises airtight vacuum case 1, absorption water vessel 2 and vavuum pump 3.Described absorption water vessel 2 is comprised of casing and the concentrated solution that is filled in the absorption water vapour in casing.The outlet of described airtight vacuum case 1 is connected by the casing of pipeline with described absorption water vessel 2, outlet on the casing of described absorption water vessel 2 is connected with the entrance of described vavuum pump 3, gas in described airtight vacuum case 1 enters described absorption water vessel 2, concentrated solution in described absorption water vessel 2 absorbs the water vapour in gas, dry gas enters described vavuum pump 3, discharges through vavuum pump 3.
The concentrated solution of described adsorbed water steam is lithium bromide, lithium chloride or lithium iodide solution, can be also other binary or multicomponent aqueous solution that can absorb moisture.
Between described airtight vacuum case 1 and described absorption water vessel 2 casings the outlet of connecting line be positioned at described absorption water vessel concentrated solution liquid level below.
Outlet on described absorption water vessel 2 casings is positioned at the top of described absorption water vessel casing.
When the needs cooling food, food is placed in described airtight vacuum case 1, opens described vavuum pump 3, at this moment due to the pressure decreased in vacuum cooling unit, the food surface moisture that is cooled absorbs rapidly be cooled food heat and explosive evaporation, reaches the purpose of cooling food.And the water vapour that is evaporated is absorbed by the concentrated solution that can absorb water vapour in described absorption water vessel 2 through described absorption water vessel 2 time, and remaining drier air is discharged in atmosphere through described vavuum pump 3.
, can the moisture in solution be evaporated by ways such as heating owing to absorbing that moisture is more reduces concentration when the concentrated solution that can absorb water vapour in absorption water vessel 2.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. absorption foods vacuum cooling device, it is characterized in that, comprise the airtight vacuum case, absorption water vessel and vavuum pump, described absorption water vessel is comprised of casing and the concentrated solution that is filled in the absorption water vapour in casing, the outlet of described airtight vacuum case is connected with the casing of described absorption water vessel by pipeline, outlet on the casing of described absorption water vessel is connected with the entrance of described vavuum pump, gas in described airtight vacuum case enters described absorption water vessel, concentrated solution in described absorption water vessel absorbs the water vapour in gas, dry gas enters described vavuum pump, discharge through vavuum pump.
2. absorption foods vacuum cooling device according to claim 1, is characterized in that, the concentrated solution of described adsorbed water steam is lithium bromide, lithium chloride or lithium iodide solution.
3. absorption foods vacuum cooling device according to claim 1 and 2, is characterized in that, between described airtight vacuum case and described absorption water vessel casing the outlet of connecting line be positioned at described absorption water vessel concentrated solution liquid level below.
4. absorption foods vacuum cooling device according to claim 3, is characterized in that, the outlet on described absorption water vessel casing is positioned at the top of described absorption water vessel casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101122980A CN103156261A (en) | 2013-04-02 | 2013-04-02 | Absorption type vacuum cooling device for food |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101122980A CN103156261A (en) | 2013-04-02 | 2013-04-02 | Absorption type vacuum cooling device for food |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103156261A true CN103156261A (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101122980A Pending CN103156261A (en) | 2013-04-02 | 2013-04-02 | Absorption type vacuum cooling device for food |
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| CN (1) | CN103156261A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464279A (en) * | 2002-06-27 | 2003-12-31 | 崔保山 | A novel vacuum system for vacuum drying |
| CN102095305A (en) * | 2010-11-30 | 2011-06-15 | 浙江大学 | Freeze drier capable of self-recirculating and regenerating of cold trap |
| CN202221129U (en) * | 2011-08-03 | 2012-05-16 | 天津商业大学 | Vacuum regeneration solution air dehumidifying system and humiture independent regulation and control air-conditioning system |
| CN202237295U (en) * | 2011-08-03 | 2012-05-30 | 天津商业大学 | Device for drying and concentrating solution in vacuum |
| CN202521941U (en) * | 2012-04-10 | 2012-11-07 | 河南城建学院 | Lithium bromide absorption type vacuum pre-cooling equipment |
-
2013
- 2013-04-02 CN CN2013101122980A patent/CN103156261A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464279A (en) * | 2002-06-27 | 2003-12-31 | 崔保山 | A novel vacuum system for vacuum drying |
| CN102095305A (en) * | 2010-11-30 | 2011-06-15 | 浙江大学 | Freeze drier capable of self-recirculating and regenerating of cold trap |
| CN202221129U (en) * | 2011-08-03 | 2012-05-16 | 天津商业大学 | Vacuum regeneration solution air dehumidifying system and humiture independent regulation and control air-conditioning system |
| CN202237295U (en) * | 2011-08-03 | 2012-05-30 | 天津商业大学 | Device for drying and concentrating solution in vacuum |
| CN202521941U (en) * | 2012-04-10 | 2012-11-07 | 河南城建学院 | Lithium bromide absorption type vacuum pre-cooling equipment |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |