CN201318850Y

CN201318850Y - Triplet unit evaporator frostless refrigerator

Info

Publication number: CN201318850Y
Application number: CNU2008202250374U
Authority: CN
Inventors: 鲁墨森; 王淑贞; 杨娟侠; 张雪丹; 刘晓辉; 鲁荣
Original assignee: Shandong Institute of Pomology
Current assignee: Shandong Institute of Pomology
Priority date: 2008-12-08
Filing date: 2008-12-08
Publication date: 2009-09-30
Anticipated expiration: 2018-12-08

Abstract

Disclosed is a triplet unit evaporator frostless refrigerator for fresh keeping of farm products, which comprises a compression condensation refrigerating unit (1) outside a refrigerator, an air cooler (2) inside the refrigerator, a wall evaporation rack pipe (3) on a refrigerator wall, a floor shallow tank (7), an inner tank evaporation rack pipe (4) inside the floor shallow tank (7) and the like. Secondary refrigerants are placed inside the floor shallow tank (7), and the compression condensation refrigerating unit (1), the air cooler (2), the wall evaporation rack pipe (3) and the inner tank evaporation rack pipe (4) are in sequential communication to form a refrigerating heat exchanging cycle. A wall rack pipe type evaporator (3) is capable of being mounted on one wall or more walls exclusive of the wall provided with the air cooler (2). The utility model is capable of being further provided with a spraying device including a spraying pipe (5), a pump (6) and the like and has the advantages that frost of the air cooler, defrosting operations and energy consumption can all be reduced and high humility and comparatively constant temperature of the refrigerator can be sustained, thereby greatly improving fresh keeping effects of farm products.

Description

A kind of ternary evaporator non-frost cold storage

One, technical field:

The utility model is the ternary evaporator non-frost cold storage that a kind of agricultural products fresh-keeping is used.

Two, background technology:

At present, the middle-size and small-size freezer that the agricultural byproducts preservation and freshness is used, its cold sweat cooling equipment used air-cooler and various forms of comb more, and air-cooler mainly passes through the cross-ventilation heat exchange, is easy to frosting, and refrigeration descends after the frosting, and the severe patient freezer is not lowered the temperature.Air-cooler frosting simultaneously also can cause freezer humidity to descend, and the drying loss of fresh products is increased, and fresh-keeping effect is influenced very big.Therefore the existing conventional air-cooler all needs timely defrost, and defrost is a process that power consumption is bigger, and it is higher to cause the storehouse temperature to rise, and is unfavorable for the fresh-keeping of agricultural product.The freezer of calandria evaporator is installed, and the natural convection air heat exchange property is relatively poor, and the cold skewness causes the storehouse temperature inhomogeneous, and long-pending frost does not more more reach refrigeration.Often suffer freeze injury from the near product of comb is as easy as rolling off a log, and away from product product temperature higher, influence the storage effect of product.

Three, summary of the invention:

The purpose of this utility model is that it can reduce the frosting phenomenon of air-cooler for agricultural product fresh-keeping provides a kind of ternary evaporator non-frost cold storage, reduces the defrost operation, cuts down the consumption of energy; When the long-pending frost of air-cooler evaporimeter, also can make freezer keep higher refrigeration heat exchange effect; And can keep the high humility of freezer and, the fresh-keeping effect of agricultural product be improved greatly than stationary temperature.

For achieving the above object, the technical scheme that the utility model is taked is: form ternary evaporator with air-cooler and various comb and form a refrigeration system with the compression refrigeration unit, promptly include the compression condensation refrigeration unit the storehouse outside and be arranged on air-cooler, the wall on the wall of storehouse in the storehouse and evaporate in the pond in comb, the shallow pond of terrace, the shallow pond of terrace and evaporate comb etc.Terrace is placed with refrigerating medium in the shallow pond, and evaporation comb, compression condensation refrigeration unit are communicated with the formation circulation successively in compression condensation refrigeration unit, air-cooler, wall evaporation comb, the pond.

The ternary vapo(u)rization system of forming freezer by the evaporation comb in air-cooler, wall evaporation comb and the shallow pond.Compression condensation refrigeration unit refrigeration → air-cooler evaporation puts and is cooler than in the storehouse in → evaporation of wall evaporation comb puts and is cooler than in the storehouse in → pond in the evaporation comb put and be cooler than in the refrigerating medium → compression condensation refrigeration unit refrigeration, form the heat exchange of freezing and circulate, constant temperature in the maintenance storehouse.

The refrigerant liquid of compression condensation refrigeration unit, at first enter the air-cooler evaporative cooling, in the air-cooler evaporimeter, the part cold-producing medium forms gas, gas of Xing Chenging and remaining cold-producing medium enter in the wall evaporation cooling grid and continue evaporative cooling herein, put and be cooler than in the storehouse, wall evaporation comb can be arranged on the face wall or multiaspect body of wall except that air-cooler is housed, gas that forms in wall evaporation comb and remaining refrigerant liquid enter at last to be placed in the shallow pond and evaporate in the comb in the pond in the refrigerating medium, refrigerant liquid evaporates in the comb in the pond, all flash to gas, finally be back in the compression condensation refrigeration unit recompression and be condensed into liquid.Refrigerating medium in the shallow pond can be put cold in the storehouse by the spray circulation.The liquid refrigerant that Condensing units produces is through the heat in the evaporation comb absorption storehouse in air-cooler evaporimeter, wall evaporation comb and the pond, evaporation generates vaporized refrigerant, return the compression condensation refrigeration unit at last and form liquid refrigerant again, so finish cooling circulation in refrigeration and the storehouse.

The ternary evaporator cascade evaporation, make the cold-producing medium evaporation fully, improved refrigerating efficiency on the one hand, prevented the liquid hit phenomenon that returns liquid and compression condensation refrigeration unit that the cold-producing medium evaporation not exclusively causes on the one hand, refrigerant temperature in the shallow pond of one side is constant again, certain cold-storage effect is arranged, can keep the back-steam of compression condensation refrigeration unit unlikely overheated, the operating condition that guarantees the compression condensation refrigeration unit is in optimum state.

The form of this tandem ternary evaporator has made full use of the fast and uniform characteristics in temperature field of temperature and the heat exchange of product temperature in air-cooler and the storehouse, and wall evaporates and evaporates comb in comb and the pond and make the complementarity exchange heat simultaneously.When the long-pending frost of air-cooler evaporimeter, also can make freezer keep higher refrigeration heat exchange effect.

In order to improve refrigeration, strengthen the humidity in the storehouse, spray equipment can be set in freezer.Spray equipment includes shower, pump etc., and shower is arranged on around the top wall in the freezer and at the upside of air-cooler, shower is communicated with pump, and pump is communicated with the shallow pond of terrace of freezer inner bottom part.By pump the refrigerating medium in the shallow pond is delivered to shower, sprayed out by shower, wherein the part refrigerating medium sprays air-cooler by shower, can improve refrigeration heat exchange effect, and can further reduce the frosting phenomenon of air-cooler.Refrigerating medium in the shallow pond has the cold-storage effect, when refrigeration machine is out of service, can discharge cold, keeps storehouse temperature, reduces the start number of times.

Therefore, the utlity model has the frosting phenomenon that can reduce air-cooler, reduce the defrost operation, cut down the consumption of energy; And can keep the high humility of freezer and than stationary temperature, make the fresh-keeping effect of agricultural product characteristics such as improve greatly.

Four, description of drawings

Accompanying drawing is a schematic diagram of the present utility model.

Five, the specific embodiment

Accompanying drawing is an embodiment of the present utility model, and it comprises compression refrigeration unit 1, air-cooler 2, wall evaporation comb 3 and is arranged on the freezer bottom is equipped with in the pond in the shallow pond 7 of the shallow pond 7 of terrace, terrace of refrigerating medium and evaporates comb 4 etc.Terrace is placed with refrigerating medium in the shallow pond 7.Wall evaporation comb 3 is arranged on to remove and is equipped with on other any bodies of wall or multiaspect wall of air-cooler.Compression condensation refrigeration unit 1 outlet end is communicated with an end of air-cooler 2, air-cooler 2 other ends connect wall evaporation comb 3, wall evaporation comb 3 other ends are connected with evaporation comb 4 in the pond, and the other end of evaporation comb 4 is communicated with compression condensation refrigeration unit 1 back-steam end in the pond.Cold-producing medium is introduced into air-cooler 2 evaporative coolings, enters wall evaporation comb 3 evaporative coolings again, enters evaporation comb 4 at last in the pond in and evaporates and put in the refrigerating medium that is cooler than the shallow pond 7 of terrace.Like this evaporation of compression condensation refrigeration unit 1 refrigeration → air-cooler 2 put be cooler than in the storehouse in → wall evaporation comb evaporation 3 puts and is cooler than in the storehouse in → pond in evaporation comb 4 put be cooler than in the refrigerating medium → compression condensation refrigeration unit 1 freezes, formation circulates.

The cold-producing medium of compression condensation refrigeration unit 1 at first enters air-cooler 2 evaporative coolings, in air-cooler 2 evaporimeters, the part cold-producing medium flashes to gas, gas of Xing Chenging and remaining refrigerant liquid enter in the wall evaporation comb 3 and continue evaporative cooling herein, put and be cooler than in the storehouse, wall evaporation comb 3 can be that a face wall also can be arranged on the multiaspect body of wall, gas that forms in wall evaporation comb 3 and remaining refrigerant liquid enter at last to be placed in the shallow pond 7 of terrace and evaporate in the comb 4 in the pond in the refrigerating medium, remaining refrigerant liquid evaporates comb 4 cold is put in the refrigerating medium in the pond, all convert gas to, be back to compression condensation refrigeration unit 1.Refrigerating medium in the shallow pond 7 of terrace can be put cold in the storehouse by the spray circulation.The heat that the liquid refrigerant that compression condensation refrigeration unit 1 produces absorbs in the storehouse through evaporation comb 4 in the pond in air-cooler 2 evaporimeters, wall evaporation comb 3 and the shallow pond 7 of terrace, evaporation generates vaporized refrigerant, returns compression condensation refrigeration unit 1 at last and forms liquid refrigerant again and finish to lower the temperature in refrigeration and the storehouse and circulate.

The ternary evaporator cascade evaporation, make the cold-producing medium evaporation fully, improved refrigerating efficiency on the one hand, prevented the liquid hit phenomenon that returns liquid and compression condensation refrigeration unit 1 that the cold-producing medium evaporation not exclusively causes on the one hand, moreover the refrigerant temperature in the shallow pond 7 of terrace is constant, can keep the back-steam of compression condensation refrigeration unit 1 unlikely overheated, the operating condition that guarantees compression condensation refrigeration unit 1 is in optimum state.

The form of this series connection ternary evaporator has made full use of the fast and uniform characteristics in temperature field of temperature and the heat exchange of product temperature in air-cooler and the storehouse, and wall evaporates and evaporates comb 4 in comb 3 and the pond and make the complementarity exchange heat simultaneously.When the long-pending frost of air-cooler 2 evaporimeters, also can make freezer keep higher refrigeration heat exchange effect.

In order to improve refrigeration, strengthen the humidity in the storehouse, on the basis of present embodiment, spray equipment is set in freezer.Spray equipment includes shower 5, pump 6 etc., shower 5 be arranged on the freezer internal upper part around and at the upside of air-cooler 2, shower 5 is communicated with pump 6, pump 6 is communicated with the shallow pond 7 of terrace of freezer inner bottom part.By pump 6 refrigerating medium in the shallow pond 7 of terrace is delivered to shower 5 and spray out, wherein the part refrigerating medium sprays air-cooler 2, can improve refrigeration heat exchange effect, and can further reduce the frosting phenomenon of air-cooler 2, increases humidity in the storehouse.The cold that utilizes refrigerating medium to store reduces the refrigerator operation number of times.

Therefore, the utlity model has the frost that can reduce air-cooler, reduce the defrost operation, reduce Energy consumption; And can keep the high humility of freezer and than stationary temperature, the agricultural products fresh-keeping effect be improved etc. greatly Characteristics.

Claims

1, a kind of ternary evaporator non-frost cold storage, include the compression condensation refrigeration unit (1) outside the storehouse and be arranged in the pond in air-cooler (2) in the storehouse, the shallow pond of terrace (7), the shallow pond of terrace (7) and evaporate comb (4), be placed with refrigerating medium in the shallow pond of terrace (7), it is characterized in that: also include the wall evaporation comb (3) on the wall of storehouse, evaporation comb (4), compression condensation refrigeration unit (1) are communicated with the formation circulation successively in compression condensation refrigeration unit (1), air-cooler (2), wall evaporation comb (3), the pond.

2, ternary evaporator non-frost cold storage according to claim 1, the wall that it is characterized in that being provided with in freezer evaporation comb (3) can be arranged on other any bodies of wall except that air-cooler (2) is housed or on the multiaspect wall.

3, ternary evaporator non-frost cold storage according to claim 1, it is characterized in that also being provided with spray equipment, spray equipment includes shower (5), pump (6), shower (5) is arranged on the top surroundings wall in the freezer and at the upside of air-cooler (2), shower (5) is communicated with pump (6), and pump (6) is communicated with the shallow pond of terrace (7) of freezer inner bottom part.