CN211503382U

CN211503382U - Central kitchen refrigerator

Info

Publication number: CN211503382U
Application number: CN202020197961.7U
Authority: CN
Inventors: 逄锐
Original assignee: Guangzhou Speed Refrigeration Equipment Co ltd
Current assignee: Guangzhou Speed Refrigeration Equipment Co ltd
Priority date: 2020-02-23
Filing date: 2020-02-23
Publication date: 2020-09-15
Anticipated expiration: 2030-02-23

Abstract

The utility model belongs to the field of refrigerators and discloses a central kitchen refrigerator, which comprises a refrigerator body and a refrigeration module, wherein a refrigeration area and a freezing area are arranged in the refrigerator body, and the refrigeration module is used for refrigerating the refrigeration area and the freezing area; a quick-freezing area is arranged in the refrigerator body, and the refrigerating module is used for refrigerating the quick-freezing area; the nitrogen making machine is communicated with the cold storage area and/or the freezing area so as to ensure that the pressure in the cold storage area and/or the freezing area is higher than the atmospheric pressure; and the refrigerating area and/or the freezing area are/is provided with an exhaust valve communicated with the atmosphere. The refrigerator is used for realizing the freshness locking treatment of different food materials under different temperature conditions.

Description

Central kitchen refrigerator

Technical Field

The utility model relates to a refrigerator field specifically is a central kitchen refrigerator.

Background

The patent application CN 201310289799.6 is provided by the university of Taiyuan science and technology in 2013 of the applicant, and discloses a liquid nitrogen and semiconductor refrigeration refrigerator, which belongs to the field of refrigeration equipment and is characterized in that a liquid nitrogen storage tank is mounted at one end of the existing semiconductor refrigeration refrigerator, a tank opening of the liquid nitrogen storage tank is communicated with an inner cavity of a refrigeration box through a pipeline on which a first electric valve is mounted, an exhaust pipe on which a second electric valve is mounted at the other end of the refrigeration box, a power switch is respectively connected with the first electric valve and the second electric valve, and a temperature control condition setting switch is respectively connected with a temperature sensor and a semiconductor refrigeration device. The advantage is that the cooling rate is fast, and work efficiency is high.

The method has the defect that the fresh-keeping operation of various food materials cannot be realized.

The technical problem to be solved by the scheme is as follows: how to realize low-temperature or freezing treatment of different food materials.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a central authorities' kitchen refrigerator, this refrigerator are used for realizing eating the material different temperature condition of material locking under the bright processing.

In order to achieve the above object, the utility model provides a following technical scheme: a central kitchen refrigerator comprises a refrigerator body and a refrigeration module, wherein a refrigeration area and a freezing area are arranged in the refrigerator body, and the refrigeration module is used for refrigerating the refrigeration area and the freezing area; a quick-freezing area is arranged in the refrigerator body, and the refrigerating module is used for refrigerating the quick-freezing area; the nitrogen making machine is communicated with the cold storage area and/or the freezing area so as to ensure that the pressure in the cold storage area and/or the freezing area is higher than the atmospheric pressure; and the refrigerating area and/or the freezing area are/is provided with an exhaust valve communicated with the atmosphere.

In the central kitchen refrigerator, the refrigeration module comprises a compressor refrigeration submodule and a liquid nitrogen refrigeration submodule, and the compressor refrigeration submodule is used for refrigerating a refrigeration area and a freezing area; the liquid nitrogen refrigerating submodule is used for refrigerating the quick-freezing area.

In the central kitchen refrigerator, the liquid nitrogen refrigeration submodule comprises a liquid nitrogen tank and a liquid nitrogen spray pipe, and the liquid nitrogen spray pipe is positioned in the quick-freezing area; the liquid nitrogen spray pipe is connected with the liquid nitrogen tank through a pipeline; and the quick-freezing area is provided with an exhaust pipe communicated with the atmosphere.

In the central kitchen refrigerator, a forced convection device for making gas in the quick-freezing area flow is arranged in the quick-freezing area.

In the central kitchen refrigerator, the exhaust pipe is also connected with a branch pipe communicated with the refrigerating area and the freezing area; and valves are arranged on the branch pipe and the exhaust pipe.

In the above described central kitchen refrigerator, the exhaust valve is a one-way valve that allows gas to escape to atmosphere.

In the above-mentioned central kitchen refrigerator, still include the controller, be equipped with hygrometer and humidifier in the cold-stored district, humidifier and hygrometer are connected to the controller electrically.

In the above central kitchen refrigerator, an oxygen detection sensor is provided in the cold storage area, and the oxygen detection sensor is electrically connected to the controller.

In the above-described central kitchen refrigerator, the refrigerating area, the quick-freezing area, and the freezing area are arranged in the refrigerator body in the order of top, bottom, and top.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses divide into cold-storage district, freezing district, quick-freeze district, supply nitrogen to cold-storage district, at least one in freezing district through the nitrogen generator, guarantee to be the inert environment in at least one district, because through the research discovery, even freezing district, under aerobic environment, long-term food storage also can deteriorate, so adopt the nitrogen generator to guarantee the inert environment. Meanwhile, a quick-freezing area is additionally arranged, so that the special food materials are frozen in a short time, and the nutrient loss in the process of changing from the normal temperature to the refrigerating temperature is avoided.

The scheme realizes the rapid and effective processing and storage of foods with different types and different prices by a plurality of food storage modes.

Drawings

Fig. 1 is a front view of embodiment 1 of the present invention;

fig. 2 is a side view of embodiment 1 of the present invention;

fig. 3 is a control block diagram of embodiment 1 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, a central kitchen refrigerator includes a refrigerator body 1 and a refrigeration module 2, wherein a refrigeration area 11 and a freezing area 12 are arranged in the refrigerator body 1, and the refrigeration module 2 refrigerates the refrigeration area 11 and the freezing area 12; a quick-freezing area 13 is arranged in the refrigerator body 1, and the refrigerating module 2 refrigerates the quick-freezing area 13; the nitrogen making machine 3 is communicated with the refrigerating area 11 and the freezing area 12 to ensure that the air pressure in the refrigerating area 11 and the freezing area 12 is higher than the atmospheric pressure; and exhaust valves 14 communicated with the atmosphere are arranged on the refrigerating area 11 and the freezing area 12.

The

refrigeration zones

11, 12 are provided as conventional arrangements for refrigerators, without limitation, and generally the refrigeration zone 11 is at a temperature above zero, typically 0-10 deg.C, and the refrigeration zone 12 is typically-12 to-20 deg.C. Whereas the quick-freezing zone 13 is mainly intended to lower the temperature of the food product to-10 to-20 c in a relatively short time, for example to this temperature within 5 min. Quick freezing is a common definition in the art, and therefore both the quick freezing time and the quick freezing temperature commonly used in the art are within the protection of this scheme.

The quick-freezing zone 13 of the present embodiment is recommended to be refrigerated by spraying and atomizing liquid nitrogen, and also can be refrigerated by a compressor, if the compressor is used for refrigeration, the power of the compressor should be large enough to reduce the food to the set temperature in a short time.

Therefore, the refrigeration module 2 of the embodiment can be used for refrigerating by a compressor, can also be used for refrigerating by liquid nitrogen or liquid carbon dioxide, and can also be used for refrigerating by combining the compressor and the liquid nitrogen, and the refrigeration module is set according to actual conditions.

As a specific refinement of this embodiment, the refrigeration module 2 includes a compressor refrigeration sub-module 21 and a liquid nitrogen refrigeration sub-module 22, and the compressor refrigeration sub-module 21 refrigerates for the refrigeration area 11 and the freezing area 12; the liquid nitrogen refrigeration submodule 22 refrigerates the quick-freeze zone 13.

The compressor refrigeration submodule 21 is a refrigeration mode mature in the field and comprises a compressor, an evaporator, a condenser and a throttle valve; the working principle is as follows: the compressor is used for compressing the steam with lower pressure into the steam with higher pressure, so that the volume of the steam is reduced and the pressure is increased. The compressor sucks working medium steam with lower pressure from the evaporator, the working medium steam with lower pressure is sent into the condenser after the pressure of the working medium steam is increased, the working medium steam is condensed into liquid with higher pressure in the condenser, the liquid with lower pressure is sent into the evaporator after the liquid is throttled by the throttle valve, the liquid is evaporated by absorbing heat in the evaporator to form steam with lower pressure, and the steam is sent into an inlet of the compressor, so that the refrigeration cycle is completed.

The liquid nitrogen refrigerating submodule 22 comprises a liquid nitrogen tank 221 and a liquid nitrogen spray pipe 222, and the liquid nitrogen spray pipe 222 is positioned in the quick-freezing area 13; the liquid nitrogen spray pipe 222 is connected with the liquid nitrogen tank 221 through a pipeline; the quick-freezing area 13 is provided with an exhaust pipe 15 communicated with the atmosphere.

Implicitly, a solenoid valve 223 is disposed on the pipe between the liquid nitrogen tank 221 and the liquid nitrogen shower pipe 222, and the solenoid valve 223 is electrically connected to the controller 4.

The liquid nitrogen spray pipe 222 is provided with a spray head for spraying the liquid nitrogen in an atomized form. Liquid nitrogen is gasified and absorbs heat in the quick-freezing area 13, then the gasified nitrogen is discharged through the exhaust pipe 15, food in the quick-freezing area 13 can be frozen quickly, and cell damage and nutrition loss caused by long-time freezing are avoided.

The frozen food may be stored in the freezer section 12.

Further preferably, a forced convection device 16 for making the gas in the quick-freezing zone 13 flow is arranged in the quick-freezing zone 13, for example, the forced convection device 16 is a fan, and the fan is arranged on the side wall of the quick-freezing zone 13.

Preferably, a branch pipe 17 communicated with the refrigerating area 11 and the freezing area 12 is further connected to the exhaust pipe 15; valves are arranged on the branch pipe 17 and the exhaust pipe 15. The branch pipe 17 is used for introducing part of the low-temperature nitrogen discharged from the quick-freezing zone 13 into the cold storage zone 11 and the freezing zone 12 for residual cold utilization, and meanwhile, the nitrogen generator 3 does not need to work during the period, so that the electric energy can be saved.

Preferably, the exhaust valve 14 is a one-way valve that allows gas to escape to atmosphere.

Preferably, the refrigerator also comprises a controller 4, wherein a hygrometer 5 and a humidifier 6 are arranged in the cold storage area 11, and the humidifier 6 and the hygrometer 5 are electrically connected to the controller 4; an oxygen detection sensor 7 is arranged in the cold storage area 11, and the oxygen detection sensor 7 is electrically connected to the controller 4. The controller 4 can further control the compressor and the nitrogen generator 3, as implied, temperature sensors 8 electrically connected with the controller 4 are arranged in the cold storage area 11, the quick-freezing area 13 and the freezing area 12, and the controller 4 controls the temperature, the quick-freezing area 13 and the freezing area 12, whether to fast freeze, whether to inject nitrogen and the like according to the temperature data, the humidity data and the oxygen data.

In the present embodiment, the cold storage area 11, the quick freezing area 13, and the freezing area 12 are arranged in the refrigerator body 1 in the order of top, bottom, and top.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A central kitchen refrigerator comprises a refrigerator body and a refrigeration module, wherein a refrigeration area and a freezing area are arranged in the refrigerator body, and the refrigeration module is used for refrigerating the refrigeration area and the freezing area; the refrigerator is characterized in that a quick-freezing area is arranged in the refrigerator body, and the refrigerating module refrigerates for the quick-freezing area; the nitrogen making machine is communicated with the cold storage area and/or the freezing area so as to ensure that the pressure in the cold storage area and/or the freezing area is higher than the atmospheric pressure; and the refrigerating area and/or the freezing area are/is provided with an exhaust valve communicated with the atmosphere.

2. The central galley refrigerator of claim 1, wherein the refrigeration module comprises a compressor refrigeration sub-module and a liquid nitrogen refrigeration sub-module, the compressor refrigeration sub-module refrigerating the freezer and freezer regions; the liquid nitrogen refrigerating submodule is used for refrigerating the quick-freezing area.

3. The central galley refrigerator of claim 2, wherein the liquid nitrogen chilling sub-module comprises a liquid nitrogen tank, a liquid nitrogen spray tube, the liquid nitrogen spray tube located within the shock freezing zone; the liquid nitrogen spray pipe is connected with the liquid nitrogen tank through a pipeline; and the quick-freezing area is provided with an exhaust pipe communicated with the atmosphere.

4. The central galley refrigerator of claim 3, wherein a forced convection apparatus is provided within the shock chilling zone for moving gas within the shock chilling zone.

5. The central galley refrigerator of claim 3, wherein the exhaust duct is further connected to a branch duct in communication with the refrigerated and freezer sections; and valves are arranged on the branch pipe and the exhaust pipe.

6. The central galley refrigerator of claim 1, wherein the vent valve is a one-way valve that allows venting of gas to atmosphere.

7. The central galley refrigerator of claim 1, further comprising a controller, a hygrometer and a humidifier within the refrigeration zone, the humidifier and hygrometer being electrically connected to the controller.

8. The central galley refrigerator of claim 7, wherein an oxygen detection sensor is provided within the refrigerated area, the oxygen detection sensor being electrically connected to the controller.

9. The central galley refrigerator of claim 1, wherein the chilling, shock chilling, and freezing zones are arranged in the refrigerator body in top-to-bottom order.