Refrigerating system for ice maker

Abstract

The utility model discloses a refrigerating system for an ice maker, which comprises a condenser, an evaporator, a thermostatic expansion valve and a compressor component, and the evaporator is an S-shaped heat exchange tube which vertically extends and is coiled; the outlet end of the compressor assembly is communicated with a connector at one end of a four-way connecting pipe with four connectors through a connecting pipe, and the other connector of the four-way connecting pipe is communicated with the inlet end of a condenser through a connecting pipe. An ice-making plate for heat exchange of an evaporator can be heated, the contact part of ice cubes on the ice-making plate and the ice-making plate is lubricated and convenient to fall off, and a refrigerant passing through the evaporator and a refrigerant passing through a condenser can be subjected to heat exchange, so that the temperature of the refrigerant entering a thermostatic expansion valve is reduced, and the heat exchange efficiency is improved. Therefore, the temperature of the refrigerant formed after the refrigerant passes through the thermostatic expansion valve is lower, heat absorption and cooling can be better achieved subsequently, similarly, the temperature of the refrigerant entering the compressor assembly can be increased, and pressurization and heating of the compressor on the refrigerant are accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to ice maker related equipment technical field more specifically relates to a kind of refrigeration system for ice maker. BACKGROUND

[0002] In the existing ice maker, the evaporator in the refrigeration system is directly fixed to the ice making plate, and a plurality of ice block forming grooves are installed on the outer wall surface of the ice making plate. Water enters the ice block forming grooves, and then the water in the ice block forming grooves on the ice making plate is condensed into ice blocks through heat exchange between the evaporator and the ice making plate.

[0003] However, ice block formation in the ice block forming grooves requires the ice blocks to be detached, but the outer wall surface of the ice blocks is firmly bonded to the inner side wall of the ice block forming grooves, making it difficult to detach and not ideal in use.

[0004] At the same time, the refrigerant from the existing condenser is a medium-temperature high-pressure liquid, which needs to pass through a capillary tube or an expansion valve to form a low-pressure low-temperature liquid. Then, it needs to enter the evaporator to absorb heat and become a low-pressure low-temperature gas, and then return to the compressor. For the capillary tube or the expansion valve, the lower the temperature of the entering refrigerant, the more conducive to forming a low-temperature low-pressure liquid. Therefore, a device is needed to better reduce the temperature of the refrigerant entering the capillary tube or the expansion valve, but such a structure does not exist at present. SUMMARY

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a refrigeration system for ice maker, which can heat the ice making plate exchanged by the evaporator, lubricate the contact part of the ice block on the ice making plate, facilitate detachment, and exchange heat between the refrigerant passing through the evaporator and the refrigerant passing through the condenser, thereby reducing the temperature of the refrigerant entering the thermal expansion valve, making the refrigerant temperature after passing through the thermal expansion valve lower, and better absorbing heat and cooling subsequently. Similarly, it can increase the temperature of the refrigerant entering the compressor assembly, thereby speeding up the compression and heating of the refrigerant by the compressor.

[0006] The utility model solves the technical problem by the following scheme:

[0007] A refrigeration system for ice maker, comprising a condenser, an evaporator, a thermal expansion valve and a compressor assembly, wherein the evaporator is an S-shaped vertically extending coiled heat exchange pipe.

[0008] The outlet end of the compressor assembly is connected with a connecting head of one end of a four-way connecting pipe through a connecting pipe, another connecting head of the four-way connecting pipe is connected with the inlet end of the condenser through a connecting pipe, the outlet end of the condenser is connected with the inlet end of the thermal expansion valve through a first connecting pipe, the outlet end of the thermal expansion valve is connected with the inlet end of the evaporator through a third connecting pipe, and the outlet end of the evaporator is connected with the inlet end of the compressor assembly through a second connecting pipe.

[0009] The first connecting pipe extends into the second connecting pipe, and the inlet end and the outlet end of the first connecting pipe extend out of the second connecting pipe.

[0010] A liquid adding connecting pipe is connected with the third connecting head of the four-way connecting pipe.

[0011] One end of a shunt pipe is connected with the fourth connecting head of the four-way connecting pipe, and the other end of the shunt pipe is connected with the third connecting pipe.

[0012] The outlet end of the shunt pipe is connected with one end of a three-way connecting head, the other end of the three-way connecting head is connected with the outlet end of the third connecting pipe, and the third end of the three-way connecting head is connected with the inlet end of the evaporator.

[0013] The inlet end of the liquid adding connecting pipe is connected with a plug.

[0014] The fourth connecting head of the four-way connecting pipe is connected with the inlet end of an electromagnetic valve through a connecting pipe, and the outlet end of the electromagnetic valve is connected with the inlet end of the shunt pipe.

[0015] The prominent effect of the utility model is:

[0016] Compared with the prior art, the compressor assembly can directly enter part of the refrigerant into the evaporator according to needs, the ice-making plate of the evaporator is heated, the ice block on the ice-making plate is lubricated in the contact part, the ice block is conveniently separated, the refrigerant passing through the evaporator and the refrigerant passing through the condenser can be heat-exchanged, the temperature of the refrigerant entering the thermal expansion valve is reduced, the temperature of the refrigerant formed after the refrigerant passing through the thermal expansion valve is lower, the subsequent heat absorption and temperature reduction are better, the temperature of the refrigerant entering the compressor assembly can be improved, and the compression and heating of the compressor on the refrigerant are accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model (part of the pipeline is represented by a dashed line);

[0018] Figure 2 It is a local structure schematic view of the angle changing of the utility model;

[0019] Figure 3 It is another local structure schematic view of the angle changing of the utility model

[0020] Figure 4 is the local structure diagram of the installation of the heat preservation foam sleeve pipe of the utility model;

[0021] Figure 5 is the partial sectional view of the four-way connecting pipe. DETAILED DESCRIPTION

[0022] Embodiment, see as Figures 1 to 5 shown, a refrigeration system for ice maker, including condenser 10, evaporator 20, thermal expansion valve 30 and compressor assembly 40, the evaporator 20 is S-shaped vertical extension coiled heat exchange pipe;Compressor assembly 40 is provided with refrigerant supplement connection head, and the supplement connection pipe is connected, the end of the supplement connection pipe is fixed with the plug, and the plug can be opened, and the refrigerant is supplemented.

[0023] The outlet end of the compressor assembly 40 is connected with the lower end of the four-way connecting pipe 50 through the connecting pipe, one of the upper part of the four-way connecting pipe 50 is connected with the inlet end of the condenser 10 through the connecting pipe, the outlet end of the condenser 10 is connected with the inlet end of the thermal expansion valve 30 through the first connecting pipe 1, the outlet end of the thermal expansion valve 30 is connected with the inlet end of the evaporator 20 through the third connecting pipe 3, and the outlet end of the evaporator 20 is connected with the inlet end of the compressor assembly 40 through the second connecting pipe 2.

[0024] The first connecting pipe 1 extends into the second connecting pipe 2, and the inlet end and the inlet end of the first connecting pipe 1 extend out of the second connecting pipe 2. Wherein, the outer side wall of the second connecting pipe 2 is coated with a heat preservation foam sleeve pipe.

[0025] Further, the third connecting head of the four-way connecting pipe 50 is connected with the liquid adding connecting pipe 4, which is in the lower part of the four-way connecting pipe 50. The end of the liquid adding connecting pipe 4 is fixed with the plug, and the plug can be opened to supplement the refrigerant.

[0026] The middle inner wall of the four-way connecting pipe 50 of the embodiment is fixed with a filter screen, and the outer side wall of the filter screen is welded and fixed on the inner side wall of the four-way connecting pipe 50.

[0027] Further, one end of the shunt pipe 6 is connected with the fourth connecting head of the four-way connecting pipe 50, and the fourth connecting head is in the upper part of the four-way connecting pipe 50, and the other end of the shunt pipe 6 is connected with the third connecting pipe 3.

[0028] Further, the outlet end of the shunt pipe 6 is connected with one end of the three-way connecting head 7, the other end of the three-way connecting head 7 is connected with the outlet end of the third connecting pipe 3, and the third end of the three-way connecting head 7 is connected with the inlet end of the evaporator 20.

[0029] Further, the inlet end of the liquid adding connecting pipe 4 is connected with a plug.

[0030] Further, the fourth connecting head of the four-way connecting pipe 50 is connected with the inlet end of the electromagnetic valve 8 through a connecting pipe, and the outlet end of the electromagnetic valve 8 is connected with the inlet end of the shunt pipe 6.

[0031] The connecting ends of all the pipes in the embodiment are covered with a heat preservation foam layer, so that heat preservation is achieved.

[0032] In use, the high-temperature and high-pressure gas-like refrigerant from the compressor assembly 40 enters the four-way connecting pipe 50 first, then enters the condenser 10, the condenser 10 is provided with a heat dissipation fan (not shown in the drawings), and after heat dissipation, a medium-temperature and high-pressure liquid is formed, then enters the first connecting pipe 1, then enters the thermal expansion valve 30, a low-temperature and low-pressure liquid is formed, then enters the evaporator 20 through the third connecting pipe 3, and after heat absorption and heat exchange, a low-temperature and low-pressure gas is formed, and then returns to the compressor assembly 40 through the second connecting pipe 2, wherein the first connecting pipe 1 extends into the second connecting pipe 2, the inlet end of the first connecting pipe 1 extends out of the second connecting pipe 2, the refrigerant in the second connecting pipe 2 is a low-temperature and low-pressure gas, and the refrigerant in the first connecting pipe 1 is a medium-temperature and high-pressure liquid, the two are heat exchanged, so that the temperature of the refrigerant entering the thermal expansion valve 30 is reduced, and the temperature of the refrigerant entering the compressor assembly 40 is increased, the compression and temperature rising efficiency of the compressor assembly 40 is improved, and energy saving effect is achieved.

[0033] Meanwhile, the evaporator 20 of the embodiment is an S-shaped vertically extending coiled heat exchange pipe, which is fixed to the rear wall surface of the ice making plate to achieve heat exchange therebetween, when it is needed to remove the ice blocks on the ice making plate, the electromagnetic valve 8 can be opened, at this time, part of the high-temperature and high-pressure gas-like refrigerant in the compressor assembly 40 enters the shunt pipe 6 through the four-way connecting pipe 50, and then enters the inlet end of the evaporator 20, so that the temperature in the evaporator 20 is increased, thereby heating the ice making plate, melting the ice blocks on the ice making plate in contact with the ice making plate, so that the ice blocks are conveniently removed, the ice blocks are separated for use, and convenience is achieved.

[0034] The above embodiments are only used for describing the utility model, and not for limiting the utility model, ordinary skilled in the related art can make various changes and modifications without departing from the spirit and scope of the utility model, therefore all equivalent technical solutions also belong to the scope of the utility model, and the patent protection scope of the utility model should be defined by the claims.

Claims

1. A refrigeration system for an ice maker, comprising a condenser (10), an evaporator (20), a thermostatic expansion valve (30), and a compressor assembly (40), characterized in that: The evaporator (20) is an S-shaped, vertically extending, coiled heat exchange tube; The outlet end of the compressor assembly (40) is connected to one end of a four-way connecting pipe (50) with four connectors via a connecting pipe. The other connector of the four-way connecting pipe (50) is connected to the inlet end of the condenser (10) via a connecting pipe. The outlet end of the condenser (10) is connected to the inlet end of the thermal expansion valve (30) via a first connecting pipe (1). The outlet end of the thermal expansion valve (30) is connected to the inlet end of the evaporator (20) via a third connecting pipe (3). The outlet end of the evaporator (20) is connected to the inlet end of the compressor assembly (40) via a second connecting pipe (2). The first connecting tube (1) extends into the second connecting tube (2), and the inlet end of the first connecting tube (1) extends out of the second connecting tube (2).

2. The refrigeration system for an ice maker according to claim 1, characterized in that: A liquid filling connection pipe (4) is connected to the third connector of the four-way connecting pipe (50).

3. The refrigeration system for an ice maker according to claim 1, characterized in that: The fourth connector of the four-way connector (50) is connected to one end of the shunt pipe (6), and the other end of the shunt pipe (6) is connected to the third connector (3).

4. A refrigeration system for an ice maker according to claim 3, characterized in that: The outlet end of the diversion pipe (6) is connected to one end of the three-way connector (7), the other end of the three-way connector (7) is connected to the outlet end of the third connecting pipe (3), and the third end of the three-way connector (7) is connected to the inlet end of the evaporator (20).

5. A refrigeration system for an ice maker according to claim 2, characterized in that: The inlet end of the liquid addition connection pipe (4) is connected to a plug.

6. A refrigeration system for an ice maker according to claim 3, characterized in that: The fourth connector of the four-way connecting pipe (50) is connected to the inlet end of the solenoid valve (8) through the connecting pipe, and the outlet end of the solenoid valve (8) is connected to the inlet end of the diverter pipe (6).

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