KR100388720B1 - Refrigerator for cold storage warehouse - Google Patents

Abstract

The present invention relates to a defrosting apparatus and a defrosting method of a refrigeration system for a refrigerated warehouse, the sprinkling apparatus for spraying water at an appropriate temperature in order to prevent deterioration of the refrigeration efficiency due to defrost on the evaporator provided inside the main body of the freezing apparatus. It is an object of the present invention to provide a defrosting apparatus and a defrosting method of a refrigeration system for a refrigerated warehouse to improve the refrigeration efficiency by improving the structure to remove the frost more reliably.

Defrosting apparatus and defrosting method of the refrigeration system for a freezer warehouse of the present invention for achieving this purpose, branched from the supply unit 52 is supplied with water to the upper portion of the evaporator 20, a plurality of spray holes 56 in the upward direction An inlet pipe 50 branched with a distribution pipe 54 formed thereon; It is formed on the upper side of the main body 10 to correspond to the spray hole 56 formed in the distribution pipe 54 of the inlet pipe 50, the reflection plate 60 is formed to be inclined at a predetermined angle in the outward direction Water sprayed through the spray hole 56 formed in the distribution pipe of the inlet pipe 50 is characterized in that it is made to fall in a fountain while hitting the reflecting plate (60).

Description

Defrosting apparatus and defrosting method of refrigeration system for refrigerated warehouses {REFRIGERATOR FOR COLD STORAGE WAREHOUSE}

The present invention relates to a defrosting apparatus and a defrosting method of a refrigeration system for a refrigerated warehouse, and more particularly, to spray the water of the appropriate temperature in order to prevent the defrosting of the evaporator provided inside the main body of the refrigeration apparatus to lower the freezing efficiency. The present invention relates to a defrosting apparatus and a defrosting method of a refrigeration system for a refrigerated warehouse to improve the refrigeration efficiency by improving the structure of the defrosting device to more surely remove the defrost.

In general, a frozen warehouse is a place where the fish or meat is stored in a frozen state so as not to be damaged, in order to maintain good quality of the stored matter, it should be kept at a low temperature.

At this time, the temperature of the freezer is usually maintained below the temperature, and the refrigeration apparatus applied to such a freezer is required to be able to freeze even relatively large space, that is, relatively large space, because it stores a large amount of storage. In addition, it is required to maintain the storage temperature evenly within the set temperature range.

As is well known, the refrigerating device uses a so-called refrigeration cycle that generates cool air in a predetermined path, ie, a process of circulating compression, condensation, expansion, and evaporation sequentially, so that the circulation process is briefly described. A compressor that compresses the refrigerant significantly and discharges it into a gaseous state of high temperature and high pressure, a condenser that heats (compresses) the compressed refrigerant with an outside air to form a liquid state of high temperature and high pressure, and expands the condensed refrigerant to form a liquid of low temperature and low pressure. And an expansion valve for changing to a state, and an evaporator for exchanging (low-heating) the liquid refrigerant at low temperature and low pressure with an outside air and sending it back to the compressor in a low temperature low pressure gas state.

1 is a perspective view showing an example of a defrosting apparatus of a conventional refrigeration system for a freezer warehouse, FIG. 2 is a partial cutaway front view of FIG. 1, and FIG. 3 is a schematic side cross-sectional view for showing the internal structure of FIG. As described above, a blower fan 14 is installed at one side of the case forming the main body 12, and the blower fan 14 is connected to an electrically operated motor 16.

In addition, an evaporator 20 connected to an expansion valve (not shown) and a compressor (not shown) is installed inside the main body 12, and the evaporator 20 is changed into a liquid state at low temperature and low pressure in the expansion valve. The refrigerant is supplied to heat exchange with the outside air to blow cold air into the inside.

At this time, the outside air is introduced by the rotation of the blowing fan 14 installed in the indoor side.

The evaporator 20 receives a low temperature low pressure liquid state refrigerant through an expansion valve through the refrigerant distributor 22.

However, in this case, as the temperature of the low-temperature low-pressure liquid refrigerant circulating the inner coil of the evaporator 20 and the outside air heat exchange, the frost is caused to the outside of the coil of the evaporator 20 by the temperature difference. Since the heat exchange action is not performed, there is a problem that the cooling efficiency is lowered.

Thus, water is injected from the upper portion of the evaporator 20 to remove the frost trapped outside the coil of the evaporator 20.

That is, as shown in Figure 2 and 3, the inlet pipe 30 is formed on the upper side of the evaporator 20 is formed with a plurality of spray holes, the appropriate temperature (approximately 25 ℃) through the inlet pipe 30 Water is supplied, and the water is injected through a plurality of spray holes 32 to a mesh body (not shown) installed on the lower side to melt the frost formed on the outside of the coil of the evaporator 20. It has a circulation structure that is discharged through the discharge hole 34 of the side.

However, the spraying structure as described above simply has a disadvantage in that water is branched through a mesh body and sprayed downward in a straight line through a plurality of spray holes formed in the inlet pipe, so that it cannot be evenly sprayed on the entire evaporator, so that it cannot properly dissolve sex. In addition, as the water is circulated, impurities contained in the water are blocked by the mesh and thus cannot be dissolved properly. Therefore, the problem of lowering the evaporator efficiency has not been properly solved.

Accordingly, the present invention has been made in order to solve the above problems, the defrosting device of spraying water at an appropriate temperature in order to prevent deterioration of the refrigeration efficiency due to defrost in the evaporator provided inside the main body of the refrigerating device It is an object of the present invention to provide a defrosting apparatus and a defrosting method of a refrigeration system for a refrigerated warehouse to improve the refrigeration efficiency by improving the structure to remove the frost more reliably.

1 is a perspective view showing an example of a defrosting apparatus of a conventional freezer refrigeration system for a conventional.

Figure 2 is a partial cutaway front view of Figure 1;

Figure 3 is a schematic side cross-sectional view for showing the internal structure of FIG.

Figure 4 is a schematic side cross-sectional view showing the internal structure of the defrosting device of a refrigeration system for a freezer warehouse according to the present invention.

5 is an enlarged view of a portion A of FIG. 4;

6 is a front view of FIG. 5;

7 is a plan view of FIG.

<Description of the symbols for the main parts of the drawings>

10: freezing device 12: main body

14: blower fan 20: evaporator

50: inlet pipe 52: supply unit

54: distribution pipe 56: spray hole

60: reflector

The defrosting apparatus of the freezing warehouse refrigeration system of the present invention for achieving the above object, the main body forming the overall appearance, a blowing fan installed on one side of the main body to draw outside air, and the low temperature low pressure After receiving heat-exchanged heat with the liquid refrigerant of the evaporator, the evaporator for sending the low-temperature low-pressure refrigerant back to the compressor, and the upper side of the evaporator to remove the frost trapped outside the evaporator by heat exchange between the evaporator and the outside air In the defrosting device of the freezer storage refrigeration system comprising an inlet pipe installed in the spraying water and the discharge hole installed in the lower side of the main body to discharge the water sprayed through the inlet pipe, in the upper portion of the evaporator An inlet branched from a supply portion to which water is supplied and branched to a distribution pipe in which a plurality of spray holes are formed in an upward direction With pipes; It is formed on the upper side of the main body corresponding to the spray hole formed in the distribution pipe of the inlet pipe, characterized in that both sides are provided with a reflecting plate formed to be inclined at a predetermined angle in the outward direction.

On the other hand, the defrosting method of the refrigeration apparatus for a freezer warehouse of the present invention for achieving the above object, the main body forming the overall appearance, a blowing fan installed on one side of the main body to draw outside air, and is built in the main body After the low-pressure low-pressure liquid state of the refrigerant is exchanged with the outside air, the low-pressure low-pressure gaseous refrigerant is sent back to the compressor comprises an evaporator, the inlet pipe installed on the upper side of the evaporator to spray water to the evaporator In the defrosting method of the refrigeration system for a freezer warehouse in which the defrost entrained in the outside of the evaporator by the heat exchange of the outside air and the water dissolved in the defrost so discharged through the discharge hole installed in the lower side of the main body to circulate the upper portion of the evaporator, It is branched from a supply part to which water is supplied to the branch, and a distribution pipe formed with a plurality of spray holes in an upward direction is formed. Providing the inlet pipe; It is formed on the upper side of the main body corresponding to the spray hole formed in the distribution pipe of the inlet pipe, the reflection plate is formed on both sides inclined at an angle in the outward direction, water is sprayed through the spray hole formed in the distribution pipe of the inlet pipe When the water hits the reflecting plate, the water is branched in a fractional manner and branched downward so that the water trapped in the evaporator is melted evenly.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The same parts as in the prior art will be described with the same reference numerals, and repeated description thereof will be omitted.

Figure 4 is a side cross-sectional view for showing the internal structure of the defrosting apparatus of the refrigeration system for a freezer warehouse according to the present invention, Figure 5 is an enlarged view of portion A of Figure 4, Figure 6 is a front view of Figure 5, Figure 7 5 is a plan view.

As shown, in the defrosting device 10 of the freezing warehouse refrigeration system of the present invention is provided with an inlet pipe 50 to supply water to the upper portion of the evaporator 20, the inlet pipe 50 is water The supply part 52 to be supplied is provided, and a plurality of distribution pipes 54 branched from the supply part 52 in various ways.

The plurality of distribution pipes 54 are formed with a plurality of spray holes 56 in an upward direction, and both sides are inclined outward at a predetermined angle on the upper portion of the main body 12 so as to correspond to the spray holes 56. The reflecting plate 60 which consists of these is provided.

Accordingly, when water is supplied through the supply unit 52 of the inlet pipe 50, a plurality of distribution pipes 54 branched through the supply unit 52 are formed on the upper side of the distribution tube 54. Water is sprayed through the spray hole 56.

The water sprayed in this way hits a plurality of reflecting plates 60 installed on the upper side of the main body 12, and is divided into several branches according to the principle of the fountain as shown in FIG.

Therefore, by being evenly sprayed on the entire evaporator 20, it is possible to melt all the frost caught in the evaporator 20, the molten frost and water in this way to the outside through the discharge hole 34 of the lower side of the body (12). Discharged.

As described above, according to the defrosting apparatus and the defrosting method of the refrigeration system for a freezer warehouse of the present invention, in the inlet pipe formed on the upper side of the evaporator, a plurality of spray holes are formed upward in the plurality of distribution pipes branched from the supply part. The spray plate and the reflecting plate corresponding to the spray hole are installed on the upper side of the main body, so that the water supplied through the supply portion of the inlet pipe is sprayed upward through the spray hole of the distribution pipe. By branching to and falling downward, the frost entrapped in the evaporator can be melted as a whole, and thus, the outside air that exchanges heat with the evaporator is more efficiently cooled, thereby eliminating the problem of lowering the cooling efficiency.

Although the invention has been described in detail only with respect to the specific examples described, it will be apparent to those skilled in the art that various modifications and variations are possible within the spirit of the invention, and such modifications and variations belong to the appended claims.

Claims (2)

A main body 12 forming an overall appearance, a blowing fan 14 installed at one side of the main body 12 to draw outside air, and a low temperature low pressure liquid refrigerant installed in the main body 12 to receive external air. After the heat exchange with the evaporator 20 for sending a low-temperature low-pressure gaseous refrigerant back to the compressor, and the evaporator 20 to remove the frost trapped outside the evaporator by heat exchange between the evaporator 20 and the outside air. The inlet pipe 50 is installed on the upper side of the freezing warehouse refrigeration system comprising an inlet pipe (50) and the discharge hole 34 installed on the lower side of the main body to discharge the water sprayed through the inlet pipe (50) In the defrosting apparatus 10, An inlet pipe 50 branched from a supply part 52 through which water is supplied to an upper portion of the evaporator 20 and having a distribution pipe 54 formed with a plurality of spray holes 56 in an upward direction; It is formed on the upper side of the main body 10 to correspond to the spray hole 56 formed in the distribution pipe 54 of the inlet pipe 50, the reflection plate 60 is formed to be inclined at a predetermined angle in the outward direction Defrosting device of a refrigeration system for a freezer, characterized in that made. A main body 12 forming an overall appearance, a blowing fan 14 installed at one side of the main body 12 to draw outside air, and a low temperature low pressure liquid refrigerant installed in the main body 12 to receive external air. After the heat exchange with the low-pressure, low-pressure gaseous refrigerant comprises an evaporator 20 for sending back to the compressor, the inlet pipe 50 installed on the upper side of the evaporator 20 by spraying water to the evaporator 20 ) Freezing warehouse refrigeration system that melts the frost stuck to the outside of the evaporator 20 by heat exchange between the outside air and circulated through the discharge hole 34 installed on the lower side of the main body 12. In the defrosting method of, The inlet pipe 50 branched from a supply part 52 to which water is supplied to an upper portion of the evaporator 20 and having a distribution pipe 54 formed with a plurality of spray holes 56 in an upward direction; It is formed on the upper side of the main body 10 to correspond to the spray hole 56 formed in the distribution pipe 54 of the inlet pipe 50, the reflection plate 60 is formed to be inclined at a predetermined angle in both directions to the outside When water is sprayed through the spray hole 56 formed in the distribution pipe 54 of the inlet pipe 50, the water is branched in a fractional manner while hitting the reflecting plate 60 and branched downward to fall, thereby causing an evaporator. (20) The defrosting method of the refrigeration system for a refrigerated warehouse, characterized in that to dissolve evenly stuck sex outside.