CN105066546A

CN105066546A - Vacuum refrigerating device

Info

Publication number: CN105066546A
Application number: CN201510488860.9A
Authority: CN
Inventors: 黄国平
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-08-12
Filing date: 2015-08-12
Publication date: 2015-11-18

Abstract

The invention provides a vacuum refrigerating device. The vacuum refrigerating device comprises a vacuum system, a closed container and a connecting pipeline. The vacuum system comprises a rack and a vacuum pump which is installed on the rack and is capable of pumping steam. The vacuum pump is communicated with the closed container through the connecting pipeline. The vacuum refrigerating device has the beneficial effects that the structure is simple, and the device is flexible and convenient to use; freshness keeping cost of fresh agricultural products is low, energy saving and environment friendliness are achieved, and Freon is avoided; after being picked, the fresh agricultural products can be rapidly cooled and encased, the respiratory action of the fresh agricultural products is restrained, the storage life of the fresh agricultural products is prolonged, and the quality of the fresh agricultural products is guaranteed; and by means of the device, a cold chain system can be easily established, a huge refrigeration house does not need to be established, and investment of fixed assets is reduced.

Description

A kind of vacuum refrigerating equipment

Technical field

The present invention relates to a kind of refrigeration plant, particularly relate to a kind of vacuum refrigerating equipment, belong to fresh-keeping cold chain equipment technical field.

Background technology

After cold chain (coldchain) refers to that perishable items is purchased from the place of production or fished for, in Product processing, storage, transport, distribution and retail until in consumer's hand, under its links is in the necessary low temperature environment of product all the time, to ensure Safety of Food Quality, Loss reducing, antipollution special supply chain system.Along with people's living standard improve constantly, people improve constantly the quality of product and the requirement of nutritive value thereof, and the field of cold chain system application is also more and more extensive, comprises primary agricultural products: veterinary antibiotics; Meat, fowl, egg; Aquatic products; Flowers product; Processed food: quick-frozen food; Ice cream and dairy produce; Fast food raw material; Specialty goods: the fields such as medicine.

China is large agricultural country, it is the country that fresh produce plantation is maximum, cultivated area is huge in the world, at present, the diet of people by simply having adequate food and clothing to auxotype transition, the demand of fresh-keeping fresh produce both domestic and external and safety food, the swift and violent growth of consumption figure have become development inexorable trend.

At present, the fresh-keeping storing of fresh produce adopts normal temperature storage, or after plucking, directly put into freezer storage, main fresh-keeping preservation still adopts freezer fresh-keeping storing, but after agricultural product results, make a gift to someone in freezer, do not reach the effect of fast cooling, but little by little, lower the temperature at leisure, and the internal temperature of fresh produce does not reduce fast, its respiration is also being carried out, effectively do not suppressed, still there is perishable problem, and normal temperature storage causes fresh produce freshness and storage time sharply to decline, crop loss is larger, freezer stores and causes cost to raise, temperature fall time also reaches more than 10 hours, and freezer needs basis to drop into, maintenance cost is high, fixed assets investment is large, also there is potential safety hazard and problem not environmentally, so cold chain industry is all constantly being explored, find one environmental protection more, fresh-keeping preservation technology safely and effectively.

Summary of the invention

The invention provides a kind of vacuum refrigerating equipment, structure is simple, equipment use is flexible, and the fresh-keeping cost of fresh produce is low, safety and environmental protection, eliminate the use of freon.

For solving the problems of the technologies described above, this application provides a kind of vacuum refrigerating equipment, comprise vacuum system, closed container and connecting pipe, described vacuum system comprises the vavuum pump of frame and the rack-mounted vapour that can directly draw water, described vavuum pump can directly aspirate steam and be communicated with closed container by connecting pipe, and placing in closed container needs freezing article.

Heat-insulation layer can also be provided with outside above-mentioned closed container.

Above-mentioned vacuum system can extract a large amount of steam of closed container, and its final vacuum reaches 20 ~ 1000Pa.

Above-mentioned vavuum pump and the junction of connecting pipe are also provided with baro-vacuum gauge, baro-vacuum gauge electrical connection controller.

Above-mentioned vavuum pump and the junction of connecting pipe are also provided with electromagnetic relief valve, electromagnetic relief valve electrical connection controller.

Above-mentioned controller is provided with display screen, controls button.

Above-mentioned closed container comprises container body and container cover, and container cover is provided with the connector be connected with connecting pipe, is provided with caulking gum between container body and container cover.

The inside of above-mentioned closed container is also provided with temperature sensor.

The application has following technique effect or advantage:

1. this equipment of employing, need not build very large freezer, and device structure is simple, easy to use and flexible; Also can as entering the Pre-cooling equipment before freezer;

2. system is simple, and steam is discharged simultaneously;

3. adopt this equipment environmental protection, do not adopt freon, adopt vacuum mode refrigeration;

4. the latent heat directly utilizing water to evaporate is large, and refrigerating efficiency is high;

5. fresh produce can realize fast cooling vanning after plucking, and inhibits its respiration, extends the pot-life of fresh produce, ensures the quality of fresh produce.

6. adopt portable, can move, be conducive to setting up cold chain system, reduce the investment of fixed assets.

7. this equipment applied range, can be widely used in agricultural product, food, etc. the cold chain link in each cold storing and fresh-keeping field.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the overall structure schematic diagram of the embodiment of the present application 1.

In figure, 1, closed container, 2, connecting pipe, 3, frame, 4, vavuum pump, 5, heat-insulation layer, 6 baro-vacuum gauges, 7, controller, 8, electromagnetic relief valve, 9, container body, 10, container cover, 11, temperature sensor.

Detailed description of the invention

The invention provides a kind of vacuum refrigerating equipment, structure is simple, equipment use is flexible, the fresh-keeping cost of fresh produce is low, energy-conserving and environment-protective, eliminate the use of freon, the operation principle of this equipment be by water under vacuum conditions boiling point reduce and reach rapid evaporation, evaporation of water takes away amount of heat makes agricultural product internal temperature reduce rapidly, thus reaches the object of fresh-keeping storing.

In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail.

Embodiment 1

As shown in Figure 1, a kind of vacuum refrigerating equipment described in the embodiment of the present application, comprise vacuum system, closed container 1 and connecting pipe 2, described vacuum system comprises frame 3 and is arranged on the vavuum pump 4 of the vapour that can directly draw water in frame 3, described vavuum pump 4 is communicated with closed container 1 by connecting pipe 2, vavuum pump 4 pairs of closed containers 1 vacuumize cooling of anhydrating, and the outside of closed container 1 is provided with heat-insulation layer 5, and closed container 1 is for placing the fresh produce of preservation to be cooled.

Wherein, in the present embodiment, described vavuum pump 4 is also provided with baro-vacuum gauge 6 with the junction of connecting pipe 2, baro-vacuum gauge 6 is electrically connected controller 7, described controller 7 is arranged on the upper side of frame 3, the pressure in closed container 1 can be shown in real time, require to vacuumize according to different fresh produces, ensure the quality of fresh produce.

Wherein, in the present embodiment, described vavuum pump 4 is also provided with electromagnetic relief valve 8 with the junction of connecting pipe 2, and electromagnetic relief valve 8 is electrically connected controller 7, and described controller 7 is arranged on the upper side of frame 3, accurately can control the pressure in closed container 1.

Wherein, in the present embodiment, described controller 7 is provided with display screen, controls button, can displays temperature, vacuum information.

Wherein, in the present embodiment, described closed container 1 comprises container body 9 and container cover 10, and container cover 10 is provided with the connector be connected with connecting pipe 2, is provided with caulking gum between container body 9 and container cover 10.

Wherein, in the present embodiment, the inside of described closed container 1 is also provided with temperature sensor 11, and temperature sensor 11 is electrically connected controller 7, is convenient to vision-control.

The cooling-down effect test experiments of this device to vegetables is as follows:

Tested object: 10 kilograms, green vegetable romaine lettuce;

Primary condition: vegetables initial temperature 27 DEG C;

Test process: vegetables are put into closed container, sealing, open vavuum pump step by step, after 10 minutes, in system, pressure reaches-0.102MPa(gauge pressure, and 0.002 is estimative figure), pressurize 7 minutes, stops vavuum pump.Open container, inserting vegetables internal measurement temperature with glass-stem thermometer is 3.8 DEG C;

As can be seen here, this apparatus structure is simple, mobile unit is easy to use, the fresh-keeping cost of fresh produce is low, energy-conserving and environment-protective, eliminate the use of freon, fresh produce can realize fast cooling vanning after plucking, inhibit its respiration, extend the pot-life of fresh produce, ensure the quality of fresh produce.

The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims

1. a vacuum refrigerating equipment, it is characterized in that: comprise vacuum system, closed container (1) and connecting pipe (2), described vacuum system comprises frame (3) and is arranged on the vavuum pump (4) of the vapour that can directly draw water in frame (3), described vavuum pump (4) is communicated with closed container (1) by connecting pipe (2), needs frozen goods to be positioned in closed container (1).

2. a kind of vacuum refrigerating equipment according to claim 1, is characterized in that, can also be provided with heat-insulation layer (5) outside described closed container (1).

3. a kind of vacuum refrigerating equipment according to claim 1, is characterized in that, described vacuum system can extract a large amount of steam of closed container (1), and its final vacuum can reach 20 ~ 1000Pa.

4. a kind of vacuum refrigerating equipment according to claim 1, is characterized in that, described vavuum pump (4) is also provided with baro-vacuum gauge (6) with the junction of connecting pipe (2), baro-vacuum gauge (6) electrical connection controller (7).

5. a kind of vacuum refrigerating equipment according to claim 1, is characterized in that, described vavuum pump (4) is also provided with electromagnetic relief valve (8) with the junction of connecting pipe (2), electromagnetic relief valve (8) electrical connection controller (7).

6. a kind of vacuum refrigerating equipment according to claim 4 or 5, is characterized in that, described controller (7) is provided with display screen, controls button.

7. a kind of vacuum refrigerating equipment according to claim 1, it is characterized in that, described closed container (1) comprises container body (9) and container cover (10), container cover (10) is provided with the connector be connected with connecting pipe (2), is provided with caulking gum between container body (9) and container cover (10).

8. a kind of vacuum refrigerating equipment according to claim 1, is characterized in that, the inside of described closed container (1) is also provided with temperature sensor (11).