KR100878589B1 - Drum refrigeration equipment type - Google Patents

Abstract

A drum type ice maker is provided to prevent the pressure variation according to the length of capillary tube and supply refrigerant at the fixed pressure since the length of each capillary tube is identical. A drum type ice maker comprises an ice-making drum(10) in which the outer surface is sanded, a refrigerant supply tube(20) including a refrigerant supply path, a refrigerant uniform part including an orifice, capillary tubes(61) which have the same length and spray refrigerant within the cooling space, an auxiliary drum(30), one side of which is supported to the ice-making drum, a refrigerant intake pipe(50) positioned within the refrigerant supply path, and a supporting part(80) supporting the ice-making drum.

Description

Drum-type Ice Machine {Drum Refrigeration Equipment Type}

The present invention relates to a drum-type ice making device, by installing an auxiliary drum in an ice making drum to reduce the distribution area of the refrigerant, shorten the length of the refrigerant suction pipe to facilitate the suction circulation of the refrigerant, and equalize the length of the refrigerant injection capillary tube. The present invention relates to a drum type ice making device capable of obtaining even generation of ice through spraying refrigerant under uniform conditions.

The drum type ice machine is installed in the ice making tank so that the cylindrical ice making drum is rotatable, the water in which a part of the ice making drum is immersed is stored in the ice making tank, and the refrigerant is supplied from the freezing system to the inside of the ice making drum. It is configured to grow the layered ice on the surface of the ice making drum by rotating the ice making drum while cooling. In addition, the ice making tank is provided with a cutter close to the surface of the ice making drum to remove the ice on the rotating ice making drum surface and discharge it to the storage.

The refrigerant of the drum-type ice maker is supplied to the cooling nozzle device installed in the ice-making drum from the refrigerant circulation system in which the compressor, the condenser and the expansion valve are connected by the refrigerant pipe, and is injected.

The drum-type ice machine as described above, as in the Republic of Korea Utility Model Utility Publication No. 1993-0000306, installs a cooling rotary drum horizontally installed inside the main body horizontally, the cooling rotary drum submerged in the water tank It is installed so that the freezing surface is equipped with a fixed blade on the side where the freezing surface is buried in the water tank, and the grinding blade is installed at the position before the freezing surface enters the water tank. It is supposed to get ice powder.

In addition, in the case of the Republic of Korea Patent Publication No. 10-2006-0059632, the water supply tank filled with the supply water by the solenoid valve installed in the water supply pipe, and the hollow ice-making drum disposed to be locked to the water supply tank to a certain depth and rotated by the drive motor and And a refrigerant circulation path tube part installed to penetrate the ice making drum from one side to generate vaporization of the refrigerant, a seal shaft part installed while forming the sealing chamber to be airtightly sealed to the ice making drum, and a predetermined portion on the ice making drum surface. A cutting knife disposed spaced apart by a gap, a refrigerating device installed to supply and discharge refrigerant gas to the refrigerant circulation path pipe, a detection unit including a supply level sensor to detect the water level in the water supply tank, and the ice making drum Selects a drive motor, a power switch to apply power to the refrigeration unit, snow mode, and flake mode The switch unit is composed of an ice type switch, a speed switch for controlling the rotational speed of the ice making drum, the drive of the ice making drum and the water supply and supply of water and the freezing device by the electrical signal of the switch unit and the sensing unit It is configured to include a microcomputer installed to be controlled by the predetermined information, the ice powder is obtained by the application and control of the microcomputer according to the electrical signal.

However, the Republic of Korea Utility Model Utility Publication No. 1993-0000306 is not a direct heat transfer by the refrigerant, the salt filled between the cooling cylinder and the cooling rotating drum is to act as a heat transfer medium, the heat transfer efficiency is not good, because of this Ice production is falling.

In addition, the conventional drum type ice maker including the Republic of Korea Patent Publication No. 10-2006-0059632 is to form the ice powder on the drum surface through direct heat transfer by the injection of the refrigerant, it is installed in the drum to supply the refrigerant to supply the refrigerant While the refrigerant suction pipe is installed in the pipe to form a double pipe type, the refrigerant suction port is installed at the end of the refrigerant supply pipe, i.e., the outermost portion of the refrigerant inlet, so that the refrigerant suction path is long. There has been a problem that heat exchange occurs between the supplied refrigerant and the refrigerant sucked through the refrigerant inlet, that is, between the refrigerant in the double pipe.

In addition, when the refrigerant inlet has a double pipe structure close to the end of the nozzle as described above, freezing occurs intensively on one side of the ice making drum, that is, the end of the nozzle, whereby the product is concentrated and the first nozzle (the nozzle where the refrigerant is first reached). The side has a problem that the product is degraded, the uniform product is not produced throughout the drum.

In addition, in order to solve the problem of heat exchange as described above, there is a method of installing the refrigerant inlet in a position close to the refrigerant inlet, but the conventional double tube type is wrapped around the capillary tube on the outer surface of the refrigerant supply pipe to increase the cooling efficiency, Through this, the refrigerant is injected, and the refrigerant inlet connected to the refrigerant suction pipe cannot be directly installed in the double pipe type refrigerant supply pipe.

Even if the refrigerant inlet is directly installed in the refrigerant supply pipe so as to be located close to the cooling supply port by eliminating the space constraint, the means for supporting the refrigerant suction pipe connected to the refrigerant inlet in the refrigerant supply pipe, that is, the smoothness of the refrigerant Technical means capable of carrying out the support of the supply and the refrigerant suction pipe at the same time could not be realized. In particular, the conventional refrigerant supply pipe has a problem in that such technical means cannot be realized because a plurality of parts are screwed together.

In addition, the conventional drum ice maker has to install a separate suction port communicating with the refrigerant suction pipe at the end of the double pipe type refrigerant supply pipe for the suction of the refrigerant, there was a difficulty in assembly, parts management and maintenance.

In addition, the conventional drum-type ice maker has a problem in that the capillary tube is wound around the coolant supply pipe to increase cooling efficiency, which is not easy to manufacture, requires a lot of assembly time, and increases the defective rate.

In addition, the double-pipe type refrigerant supply pipe of the conventional drum-type ice maker is composed of a plurality of components are coupled by screw coupling, it is difficult to maintain a constant gap and the cutting portion of the blade when the drum is driven because the rotational balance of the uniaxial shaft does not match during assembly. It was difficult to produce ice powder of uniform ice quality.

In addition, the outflow phenomenon of the refrigerant through the bolt nut-type coupling portion is generated, thereby lowering the cooling efficiency, there was a problem that requires a lot of sealing work for sealing.

In addition, the conventional drum type ice maker has a different length from the refrigerant inlet to the end of the capillary tube, so that a pressure difference occurs in the capillary tube, resulting in a different ejection amount of the refrigerant according to each capillary tube. Cooling is concentrated in part. That is, the conventional drum type ice maker has a phenomenon that the production of ice concentrates on a part.

In addition, the refrigerant to be supplied is a mixture of bubbles and liquid, but the conventional drum type ice maker is only such that the refrigerant is ejected through the capillary tube by the supply pressure, there was a variety of problems, such as unable to eject a uniform refrigerant.

The present invention is to solve the above problems, an object of the present invention is to provide a drum-type ice making apparatus that can reduce the refrigerant spraying area by increasing the cooling efficiency by installing an auxiliary drum inside the ice making drum.

Still another object of the present invention is to provide a drum-type ice making device capable of minimizing heat dissipation of a refrigerant by evacuating an auxiliary drum or filling a heat insulating material.

Still another object of the present invention is to provide a drum type ice making device which provides a coolant inlet close to a coolant inlet, thereby rapidly performing coolant suction and minimizing contact with the supplied coolant.

Another object of the present invention is to inject the refrigerant supplied by the refrigerant supply pipe by a capillary tube having the same length to inject the refrigerant under a uniform pressure, thereby obtaining an even production of ice throughout the ice making drum surface It is to provide a drum type ice maker.

Still another object of the present invention is to install a refrigerant supply pipe integrated by welding, to maintain a uniform rotational balance, to prevent the leakage of the refrigerant by screwing in advance, and to improve the assembly of drum type ice making To provide a device.

Another object of the present invention is to provide a drum-type ice making device that can provide a fine groove by sanding the outer surface of the ice making drum, to increase the surface area, and to prevent the falling of the slice ice by improving the adhesive force during ice freezing To provide.

Still another object of the present invention is to provide a drum-type ice making device capable of increasing the cooling efficiency of the ice making drum by installing a plurality of cooling fins inside the ice making drum.

Another object of the present invention is to provide a drum-type ice making device that can install a removable orifice in the refrigerant supply pipe to obtain a uniformity through the mixing of the refrigerant, thereby maintaining a constant pressure of the refrigerant to improve the product performance It is.

The present invention provides an ice making drum having an external surface sanded, a refrigerant supply pipe having one side inserted into the ice making drum, and having a refrigerant supply passage therein, and an end of the refrigerant supply pipe having an orifice therein. And a capillary tube connected to the coolant uniform part and spraying the coolant into the ice making drum, the capillary tube having the same length, and connected to the coolant uniform part so that the capillary tube is located therein, the inside is sealed, and one side is bearing in the ice making drum. Supported auxiliary drum, the refrigerant suction pipe is located in the refrigerant supply passage of the refrigerant supply pipe is installed so that one end is protruded to the outer surface of the auxiliary drum through the auxiliary drum, and installed between the ice making drum and the refrigerant supply pipe refrigerant in the ice making drum It is configured to include a support for preventing the leakage of the ice bearing bearing bearing ice drum.

As described above, in the present invention, each capillary injecting the refrigerant has the same length, thereby preventing a pressure change in accordance with the capillary length in advance, and thereby supplying the refrigerant at a constant pressure.

In addition, in the present invention, since the refrigerant is supplied at a constant pressure by each capillary tube, it is possible to uniformly cool the ice making drum, through which ice can be produced evenly throughout the ice making drum.

In the present invention, an orifice is provided in the refrigerant supply passage, and a guide plate having a refrigerant mixing passage is installed at a rear end thereof, so that uniformity of the refrigerant supplied to the refrigerant mixing passage through the orifice, that is, bubbles and liquid in the refrigerant, is provided. It can mix and supply uniformly.

In addition, the present invention is further provided with a plurality of cooling fins in the drum, it is possible to increase the heat exchange surface area with the refrigerant and thereby increase the cooling efficiency.

In addition, the present invention is installed so that the refrigerant inlet close to the refrigerant inlet, to facilitate the circulation of the refrigerant injected into the ice making drum through the capillary tube, to minimize the contact time between the refrigerant and the supplied refrigerant to improve the cooling efficiency Can be.

In addition, the present invention is provided with an auxiliary drum in the ice making drum, it is possible to reduce the internal volume of the ice making drum in which the refrigerant is injected / distributed, thereby obtaining an efficient cooling efficiency.

The present invention is to minimize the heat dissipation of the refrigerant by vacuum treatment or filling the insulating material in the auxiliary drum, through which efficient cooling efficiency can be obtained.

In addition, the present invention by installing an ice making drum having a myriad of fine grooves on the outer surface to improve the adhesion during freezing, thereby preventing the falling of sliced ice through the excellent freezing ice powder and uniform ice powder You can get it.

In addition, the present invention minimizes the length of the double pipe type in which the refrigerant suction pipe is located in the refrigerant supply pipe, integrally formed by welding the refrigerant supply pipe and the refrigerant suction pipe, to prevent the leakage of the refrigerant due to the conventional screw coupling in advance. Through this, it is possible to maintain a constant pressure in the double pipe, especially in the refrigerant supply pipe to maintain a constant function.

In addition, the present invention has a simple structure, the overall assembly is simpler than the prior art, and the maintenance of parts is easy, thereby reducing the economic cost.

In addition, the present invention is to provide a closed portion in the support portion is double-sealed, the leakage refrigerant gas discharge line is further installed in the sealed portion to prevent leakage of the coolant, in particular, the refrigerant leakage into the water tank in which one side of the ice making drum is flooded. prevent.

In addition, the present invention can form a thin plate of the refrigerant supply pipe when the support holder is further installed between the refrigerant supply pipe and the refrigerant suction pipe in which the refrigerant inlet is located, thereby reducing the cost and improve the processability of the refrigerant supply pipe. It works.

1 is an exemplary view showing an exploded state according to the present invention, Figure 2 is an exemplary view showing an internal configuration of the present invention, Figure 3 is an exemplary view showing a configuration excluding the ice making drum of the present invention, Figure 4 3 is an enlarged view of portion A, FIG. 5 is an enlarged view of portion B of FIG. 3, FIG. 6 is an illustration showing a coupling configuration of the support plate and the orifice of the present invention, and FIG. 7 is an illustration showing an orifice configuration of the present invention. 8 is an exemplary view showing a configuration of an induction plate of the present invention, FIG. 9 is an exemplary view showing one side configuration in an ice making drum according to the present invention, and FIG. 10 is a connection of a capillary and a capillary support holder according to the present invention. Figure 11 shows an exemplary view showing the relationship, Figure 11 shows an exemplary view showing a configuration of an embodiment according to the present invention, the present invention is the outer surface of the sanding drum (10) sanding process, one side is inserted into the ice making drum A refrigerant supply pipe (20) installed and having a refrigerant supply passage (21) therein; The end of the refrigerant supply pipe 20 is coupled to the refrigerant uniform part 200 having an orifice 70 therein and connected to the refrigerant uniform part 200 so as to communicate with the refrigerant mixing passage 21 and an ice making drum. Capillary tube 61 having the same length as the refrigerant is injected into and connected to the refrigerant uniform part 200 so that the capillary tube 61 is located therein, the inside is sealed, and one side supports the bearing in the ice making drum 10. The auxiliary drum 30 and the refrigerant suction pipe 50 located in the refrigerant supply passage 21 of the refrigerant supply pipe and installed at one end thereof to protrude to the external surface of the auxiliary drum through the auxiliary drum 30 and the ice making drum Is installed between the 10 and the refrigerant supply pipe 20 is configured to include a support portion 80 to prevent the leakage of the refrigerant in the ice making drum and bearing support the ice making drum to the refrigerant supply pipe.

The ice making drum 10 is immersed in one side of the water tank and ice is frozen on the outer surface. The ice making drum 10 is formed in a cylindrical shape, and numerous micro grooves 11 are formed on the outer surface on which the ice is frozen. That is, the ice making drum 10 can be processed by sanding or the like to form a myriad of fine grooves 11 as shown in FIG. 9, thereby increasing the surface area and improving the adhesion of the ice. In addition, a plurality of cooling fins 12 are integrally installed on the inner surface of the ice making drum to improve cooling efficiency.

The ice making drum 10 is sealed at both ends by the support 13 and the sealing cover 14. That is, the support 13 is connected to the refrigerant uniform part 200 and the auxiliary drum 30 is bearing-supported to the sealing cover 14 positioned on the other side.

The refrigerant supply pipe 20 is to supply a refrigerant, one side is inserted into the ice making drum 10, the other side is connected to the refrigerant circulation system. Since the refrigerant circulation system is a known technical means in which a compressor, a condenser, and an expansion valve are connected by a refrigerant pipe, detailed description thereof will be omitted.

The coolant supply pipe 20 is provided with an inlet holder 25 having a coolant inlet 22 at one end located outside the ice making drum and integrally with the coolant uniform part 200 having the other end in the ice making drum. Is coupled, the refrigerant supply passage 21 is formed therein. The refrigerant uniform part 200 and the refrigerant supply pipe 20 are integrally coupled by screwing or welding, and the refrigerant supply pipe 20 is made of a thin material.

In addition, a support holder 23 is further installed in the refrigerant supply pipe 20 so as to be positioned below the refrigerant inlet 22, and the support holder 23 is provided with a refrigerant inlet 22 and A support holder passage 24 is formed in communication with the refrigerant supply passage 21.

The installation of the support holder 23 as described above is intended to solve the difficulty of forming the refrigerant inlet formed when the coolant supply pipe 20 is formed in a thin plate and to support the thin coolant supply pipe, which is omitted when the coolant supply pipe is formed in a thick plate. Although possible, in consideration of the supply amount and the cost of the refrigerant, it is preferable to form a refrigerant supply pipe of the thinnest possible thickness in consideration of the heat release of the refrigerant.

The refrigerant supply pipe 20 configured as described above has a double pipe type in which a refrigerant suction pipe 50 is installed in the refrigerant supply passage 21.

As shown in FIG. 5, the coolant uniform part 200 is in contact with a support plate 40 having an end of a coolant supply pipe 20 coupled to one side thereof, and a support plate 40 in contact with an end of the coolant supply pipe 20. An orifice 70 installed therein and connected to the refrigerant supply passage 21 and a refrigerant mixing passage 91 coupled to the other side of the support plate 40 and communicating with the refrigerant supply passage therein, and the capillary tube is connected and installed. It is intended to include a guide plate 90 to be.

The support plate 40 is a refrigerant supply pipe 20 is coupled to one side, the induction plate 90 is coupled to the other side corresponding thereto, as shown in Figure 7, the refrigerant supply pipe 20 and the orifice ( 70 is inserted into the installation port 41, and is provided in communication with the installation port 41 and the guide plate installation hole 42 is inserted into one side of the guide plate 90 is installed. The mounting hole 41 and the guide plate mounting hole 42 are formed to have the same center line.

The orifice 70 is inserted into the mounting hole 41 so as to be located between the refrigerant supply pipe 20 and the support plate 40, and is detachable. As shown in FIG. 7, the refrigerant supply passage 21 is shown in FIG. 7. ) And a refrigerant inlet pipe installation hole 72 through which the refrigerant inlet 71 is communicated with and the refrigerant suction pipe 50 located in the refrigerant supply passage 21 is penetrated.

That is, the orifice 70 has a refrigerant suction pipe installation hole 72 formed in the center, and a plurality of refrigerant supply holes 71 are formed around the refrigerant suction pipe installation hole 72.

The guide plate 90 uniformly mixes the refrigerant ejected by the orifice 70 and supplies it to the capillary tube 61, and as shown in FIG. 8, the refrigerant communicating with the refrigerant supply port 71 of the orifice. It is provided with a mixing passage 91 and a connecting passage 92 in communication with the refrigerant mixing passage 91 and connected to the capillary tube 61.

5 and 8, the refrigerant mixing passage 91 is formed on one side of the guide plate 90 to have a circular band shape, and the connection passage 92 is a refrigerant mixing passage 91. Maintains an isometric angle within the shell and is formed in plural.

In the present invention configured as described above, the coolant supplied through the coolant supply passage 21 is diffused / flowed in the coolant mixing passage 91 of the guide plate while being passed through the coolant supply port 71 of the orifice and is uniformly mixed. . In other words, the supplied refrigerant maintains a non-uniform mixture of gas and liquid, but diffuses and flows through the refrigerant supply port of the orifice to uniformly mix the gas and liquid.

In addition, in the center of the refrigerant mixing passage 91 of the induction plate configured as described above, a close contact insert groove 93 into which the close contact 95 is inserted is formed, and the close contact 95 is formed of the refrigerant suction pipe 50. Support one side. That is, the close contact 95 is inserted into the close contact insert groove 93 of the guide plate to support one side of the refrigerant suction pipe passing through the guide plate.

The close contact slot 94 is formed to have the same center point as the coolant mixing passage 91, and the close contact insert groove 94 is positioned in the coolant mixing passage 91.

The capillary tube 61 ejects / supplies the refrigerant uniformly mixed by the refrigerant mixing passage 91 into the space 15 (hereinafter referred to as a “cooling space”) between the auxiliary drum 30 and the ice making drum 10. It is installed so that a plurality is located in the sealed inner space in the auxiliary drum 30, each capillary is connected to the connecting passage 92 of the guide plate by one end is connected to the guide plate 62 and the other end is supported by the capillary tube The holder 60 is connected to be installed in the cooling space 15.

At this time, the end of the capillary tube 61 injecting the refrigerant in the cooling space 15 is directed toward the portion (boundary point) where the injected refrigerant is in contact with the ice making drum and the water tank surface. It is installed. The end of the capillary 61 is immersed in water and indirectly evaporated by the indirect evaporation temperature (refrigerant in the ice-making drum) by the evaporation temperature (direct contact of the sprayed coolant) at an optimal distance. It is supposed to freeze second strongly. When this secondary freezing is made, the ice frozen on the surface of the ice making drum is cracked by the secondary freezing, and when cut by the blade, it becomes fine powder like powder as white snow falls. .

In addition, each of the capillaries 61 is formed to have the same length. That is, as shown in FIGS. 2, 3 and 10, the capillary tube has a large number of coils connected to a short distance from the connecting passage to the capillary support holder, and the capillary connected to a long distance is relatively With a small number of coils, each capillary is of equal length.

In addition, although the capillary tube shown in FIGS. 2, 3 and 10 is only partially configured with a coil and another portion connected with the capillary support holder has a straight line, the illustration of such a drawing is only one embodiment and the same. In order to provide the condition, it is preferable to form a coil shape continuously from the connecting passage of the guide plate to the connecting portion with the capillary support holder.

In addition, the capillary tube 61 may be installed to have an inclination angle of a predetermined angle to facilitate the ejection of the refrigerant in the coil forming direction.

In addition, the capillary tube 61 may be installed to be connected to the side of the auxiliary drum as shown in FIG.

The capillary support holder 60 supports the end of the capillary tube 61, and is connected to the capillary tube and integrally installed on the outer surface of the auxiliary drum 30.

The auxiliary drum 30 is to be connected to one side of the guide plate 90, one end is integrally coupled by the guide plate 90, the sealing cover 31 is coupled to the other end capillary 61 The installed inner space is installed to be sealed. The auxiliary drum may be closed by means of welding or the like.

The auxiliary drum 30 configured as described above is installed to be located in the ice making drum 10 to reduce the volume of the cooling space 15, thereby providing efficient cooling of the refrigerant. In addition, the interior space of the auxiliary drum is filled with a vacuum treatment or heat insulating material.

The refrigerant suction pipe 50 is for sucking the refrigerant injected into the cooling space 15 by the capillary tube 61 and circulating it back to the refrigerant circulation system. The refrigerant supply pipe 20 is located in the refrigerant supply passage 21 of the refrigerant supply pipe. It is formed integrally with a) and has a refrigerant suction passage 52 therein.

In addition, the refrigerant suction pipe 50 is connected to the internal space of the auxiliary drum 30 through the refrigerant suction pipe installation hole 72 of the orifice, the contact table 95 installed in the guide plate, the refrigerant suction port 51 is The formed end is installed through the auxiliary drum 30 so as to be located in the cooling space 15.

That is, one end of the refrigerant suction pipe 50 is integrally connected to the refrigerant supply pipe 20, and the other end of the refrigerant suction opening 51 penetrates through the auxiliary drum in the auxiliary drum 30 to provide a cooling space 15. It is installed to be located on.

In addition, the refrigerant suction opening 51 of the refrigerant suction pipe located in the cooling space 15 is not at a predetermined angle so as not to be in line with the end of the capillary tube fixed by the capillary support holder 60, as shown in FIG. 9. It is provided with (alpha).

That is, the refrigerant suction opening of the refrigerant suction pipe located in the cooling space is installed to be positioned between about 10 to 180 ° with respect to the end of the capillary tube 61 installed in the capillary support holder. It is preferable to be provided at a position of about 30 ° with respect to the end of (61). In addition, when installed within 10 degrees, since the refrigerant injected from the capillary tube near the refrigerant inlet can be directly sucked into the refrigerant inlet, it is not preferable in terms of cooling efficiency.

In particular, when the coolant suction port 51 maintains an angle of about 30 ° with respect to the capillary end, the coolant suction port maintains a perpendicular state to the water surface of the water tank. Can be inhaled and discharged.

That is, some of the refrigerant circulating oil is mixed in the refrigerant compressed by the refrigeration compressor and injected into the ice making drum at a high pressure. When the refrigerant is injected into the ice making drum, oil is precipitated at the bottom of the ice making drum, which is the closest to water. Since the low temperature evaporation temperature is transmitted to the site, the ice freezing effect of the ice making drum is reduced. When the refrigerant suction opening of the present invention maintains an angle of about 30 ° with respect to the capillary end, it is possible to prevent the ice freezing effect as described above.

In addition, the present invention may be further provided with a function of returning to the oil reservoir of the compressor of the refrigerator by connecting to the refrigerant suction pipe, and when configured in this way, the piston of the existing compressor (compressor) compression pump and the on-off valve of the compressed refrigerant Can be prevented from burning down due to high oil.

As described above, when the refrigerant intake port of the present invention is installed to maintain a perpendicular state to the water surface of the water tank, suction of precipitated oil is possible, so that the evaporation temperature of the low temperature evaporation gas is directly transmitted to the water surface closest to the water. At the same time, refrigeration compressors, a key machine that lowers this evaporation temperature, can be prevented from damaging the pistons and valves by thermal sintering and causing significant losses.

In addition, the refrigerant inlet 51 is preferably installed between the capillary support holder closest to the refrigerant inlet and another capillary support holder adjacent thereto.

That is, the present invention is to maximize the flow of the refrigerant in the cooling space, to minimize the length of the refrigerant discharged through the refrigerant inlet to improve the cooling efficiency.

In more detail, the air bubbles are contained in the refrigerant by a certain amount of natural air bubbles generated by high heat and pumping pressure in the compressor, and these air bubbles are additionally generated by the flow of the pipe while moving through the pipe. The phenomenon is added.

Thus, the bubble-containing refrigerant is injected in the first capillary (the first capillary to reach the refrigerant) in the process of being sequentially sprayed through a plurality of capillaries connected to the auxiliary drum, the most mixed refrigerant is injected from the second capillary The refrigerant pumped in the compressor reduces the pumping pulsation and maintains a constant pressure, and the refrigerant is injected from the capillary tube in the long distance, the last capillary tube with the highest injection pressure. Since it has the longest moving distance to the refrigerant inlet while hitting, it is possible to maintain the maximum efficiency of the evaporation heat.

The support part 80 is for preventing leakage of the refrigerant injected into the cooling space 15 to the outside of the ice making drum. As shown in FIG. 3, the support part 80 is bearing-supported to the refrigerant supply pipe 20 and integrally formed with the ice making drum. It is to include a support body 81 to be coupled, and a seal portion 82 provided in the support body.

At this time, a sealing material 95 such as an O-ring is inserted between the support body and the ice making drum, the support body and the sealing part, and the sealing part and the refrigerant supply pipe.

The seal portion 82 is for preventing leakage of the refrigerant gas in the cooling space and is located on the outer surface of the refrigerant supply pipe so that the refrigerant supply pipe 20 penetrates.

That is, the seal portion 82 includes a gasket 83 installed to be positioned in the support body 81, a first support cylinder 84 supporting the gasket, and one side of the first support cylinder. 2 a support cylinder 85, a support cylinder cover 86 installed on an outer surface of the second support cylinder, a spring cover 87 installed to be in contact with the refrigerant supply pipe while maintaining a predetermined distance from the support cylinder cover; , It is composed of a spring 88 is installed to be located between the support cover and the spring cover.

That is, the seal portion is in close contact with the gasket into the support body by the operation of the spring to prevent the leakage of the refrigerant, the refrigerant supply pipe in close contact with one side to fix the position. In this case, it is preferable that the first support cylinder uses a ceramic material, and the second support cylinder uses a carbon material.

In addition, the present invention is further provided with a sealing portion 80` on the support portion 80 to be located outside the ice making drum. The sealing part 80` is to prepare for the case where the refrigerant leaks through the support body and the seal part, and has a storage space 81` for temporarily storing the leakage refrigerant therein, and is connected to the storage space and leaks. A refrigerant gas discharge line 82 'is provided. At this time, the leakage refrigerant gas discharge line is further provided with an on-off valve.

The ice making drum, the auxiliary drum, the refrigerant supply pipe, the refrigerant suction pipe, the support part, the support plate, and the guide plate of the present invention configured as described above are all provided to have the same center line.

According to the present invention configured as described above, the refrigerant is supplied into the refrigerant supply passage of the refrigerant supply pipe through the refrigerant inlet, and the supplied refrigerant is moved to the refrigerant mixing passage of the guide plate through the refrigerant supply opening of the orifice, and within the refrigerant mixing passage. At uniformly mixed refrigerant is moved to the capillary through the connecting passage of the guide plate is injected into the cooling space. At this time, a plurality of cooling fins are installed in the cooling space to increase the contact area with the refrigerant, thereby improving the cooling efficiency of the ice making drum.

As such, the refrigerant injected into the cooling space is moved to the refrigerant suction pipe through the refrigerant suction port installed to be close to the refrigerant inlet side and circulated to the refrigerant circulation system.

In addition, in the present invention, even if the refrigerant in the cooling space leaks through the support portion, the sealing portion is further provided in the support portion, the leakage refrigerant is temporarily stored in the storage space of the sealing portion, the leakage refrigerant is discharged through the discharge line by opening and closing the valve Will be.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

1 is an exemplary view showing an exploded state according to the present invention

Figure 2 is an exemplary view showing the internal configuration of the present invention

Figure 3 is an exemplary view showing a configuration except the ice making drum of the present invention

4 is an enlarged view of a portion A of FIG. 3;

5 is an enlarged view of a portion B of FIG. 3;

Figure 6 is an exemplary view showing a coupling configuration of the support plate and the orifice of the present invention

7 is an exemplary view showing an orifice configuration of the present invention

8 is an exemplary view showing a configuration of a guide plate of the present invention

Figure 9 is an exemplary view showing one side configuration in the ice making drum according to the present invention

10 is an exemplary view showing a connection between a capillary and a capillary support holder according to the present invention;

11 is an exemplary view showing a configuration of an embodiment according to the present invention

12 is an exemplary view showing an installation state according to the present invention

* Explanation of symbols for main parts of the drawings

(10): Ice making drum (11): Micro groove

(12): cooling fins (13): support

(14): airtight cover (15): cooling space

(20): refrigerant supply pipe (21): refrigerant supply passage

(22): refrigerant inlet (23): support holder

(24): support holder passage (30): auxiliary drum

(31): airtight cover (40): support plate

(41): mounting hole (42): guide plate mounting hole

50: refrigerant suction pipe 51: refrigerant suction port

(52): refrigerant suction passage (60): capillary support holder

61: capillary 70: orifice

(71): Refrigerant supply port (72): Refrigerant suction pipe installation hole

80: support portion 81: support body

(82): Seal part 83: Gasket

(84): first support cylinder 85: second support cylinder

(86): support cylinder cover 87: spring cover

(88): spring (80`): seal

(81`): Storage space (82`): Leak refrigerant gas discharge line

(90): guide plate (91): refrigerant mixing passage

(92): Connecting passage (93): Contact slot insertion groove

(95): close contact (100): refrigerant flow

200: refrigerant uniform part 300: water tank

400: blade

Claims (15)

Ice-making drums with sanded outer surfaces, A refrigerant supply pipe having one side inserted into the ice making drum and having a refrigerant supply passage therein; A refrigerant uniform part having an end of the refrigerant supply pipe coupled thereto and having an orifice therein; A capillary tube connected to the coolant uniform part and spraying a coolant into a cooling space, the capillary tube having the same length; An auxiliary drum which is connected to the refrigerant uniform part so that the capillary tube is located inside and which is sealed inside, and one side of which is bearing-supported in the ice making drum; A refrigerant suction pipe disposed in the refrigerant supply passage of the refrigerant supply pipe and installed at one end thereof so as to protrude to an external surface of the auxiliary drum through the auxiliary drum, and the other end having a refrigerant suction hole therein to be positioned in the cooling space through the auxiliary drum; And a support part installed between the ice making drum and the refrigerant supply pipe to prevent leakage of the refrigerant in the ice making drum and bearing the ice making drum to the refrigerant supply pipe. The method according to claim 1; Drum ice maker characterized in that a plurality of cooling fins are integrally installed in the ice maker drum. The method according to claim 1; And a support holder further installed in the coolant supply pipe to be positioned below the coolant inlet. The method according to claim 1; The coolant uniform portion and the support plate is coupled to one side of the end of the coolant supply pipe; An orifice contacting the end of the refrigerant supply pipe and installed in the support plate and connected to the refrigerant supply passage; And a guide plate coupled to the other side of the support plate and having a refrigerant mixing passage therein in communication with the refrigerant supply passage and having a capillary tube connected thereto. The method according to claim 4; And the orifice comprises a refrigerant supply opening communicating with the refrigerant supply passage, and a refrigerant suction pipe installation hole through which the refrigerant suction pipe located in the refrigerant supply passage passes. The method according to claim 4 or 5; Drum or ice making apparatus, characterized in that the orifice is removable. The method according to claim 4; The guide plate has a refrigerant mixing passage communicating with the refrigerant supply port of the orifice, and the drum-type ice making apparatus comprising a connection passage installed in communication with the refrigerant mixing passage and connected to the capillary tube. The method of claim 7; A close-up insert groove is formed at the center of the refrigerant mixing passage of the guide plate, and the close-up insert supporting the refrigerant suction pipe is inserted into the close-insert insertion groove. The method according to claim 1; The capillary is a drum-type ice making device, characterized in that the coil shape. The method according to claim 1 or 9; The end of the capillary tube to which the refrigerant is injected is a drum-type ice maker, characterized in that the refrigerant is directed toward the portion (boundary point) where the ice making drum and the water tank surface contact. The method according to claim 1; The refrigerant suction port is a drum-type ice maker, characterized in that installed to be located between 10 to 180 ° with respect to the capillary tube. The method according to claim 1; The refrigerant suction port is a drum-type ice maker, characterized in that installed to be perpendicular to the water surface in the water tank. The method according to claim 1; The auxiliary drum is a drum-type ice maker, characterized in that the inside is maintained in a vacuum state, or the heat insulating material is filled. The method according to claim 1; The support portion is a drum-type ice making apparatus comprising a support body and a bearing body supported by the refrigerant supply pipe and integrally coupled to the ice making drum, and a seal portion provided in the support body. The method of claim 14; A drum-type ice making device having a storage space for temporarily storing a leaking refrigerant inside the support portion, and a sealed part connected to the storage space and having a leaking refrigerant gas discharge line installed therein.

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