KR-20260067204-A - Plate-type ice evaporator

Abstract

The present invention relates to an ice-making evaporator capable of improving ice-making efficiency while simplifying the structure. The ice-making evaporator of the present embodiment comprises a freezing plate, a refrigerant pipe formed to protrude convexly from the surface of the freezing plate having a predetermined diameter and length and providing a space for refrigerant to flow inside, and a plurality of flow path walls formed to protrude from the surface of the freezing plate along a direction perpendicular to the refrigerant pipe and providing a flow path for ice-making water to flow along the surface of the freezing plate, wherein when refrigerant flows through the refrigerant pipe, the ice-making water flowing along the flow path freezes on the surface of the refrigerant pipe to grow ice.

Inventors

• 우상운
• 우민희

Assignees

• (주)신우엠테크

Dates

Publication Date

20260512

Application Date

20241105

Claims (6)

1. Freezing plate; A refrigerant pipe formed to protrude convexly from the surface of the freezing plate to have a predetermined diameter and length, providing a space for refrigerant to flow inside; and, A plurality of flow path walls formed protruding from the surface of the freezing plate along a direction perpendicular to the refrigerant pipe and providing a flow path for ice-making water to flow along the surface of the freezing plate; An ice-making evaporator that, when a refrigerant flows through the above-mentioned refrigerant pipe, the ice-making water flowing along the above-mentioned path freezes on the surface of the above-mentioned refrigerant pipe to grow ice.
2. In Article 1, The above freezing plate is formed by combining an upper freezing plate and a lower freezing plate while facing each other, and An evaporator for making ice, wherein the above refrigerant tube is formed by combining the upper freezing plate and a molded portion protruding outwardly from the surface of the lower freezing plate.
3. In Article 2, An evaporator for making ice, further comprising: a freezing tube formed by expanding the diameter of the refrigerant tube in the above-mentioned Euro region.
4. In Article 2, An evaporator for making ice, further comprising stagnation protrusions formed to protrude from both sides of the refrigerant pipe onto the surface of the freezing plate to induce stagnation of the ice-making water.
5. In Article 2, It further includes a core material installed along the central axis of the refrigerant pipe, having a diameter smaller than that of the refrigerant pipe, and An evaporator for making ice, configured such that the ice-making water flows along the space between the refrigerant pipe and the core material.
6. In Article 2, It further includes a connecting pipe that extends outward from the above freezing plate and connects the ends of adjacent refrigerant pipes to each other. An evaporator for making ice, wherein a through hole penetrating the ice plate is formed in the ice plate region inside the connecting pipe.

Description

Plate-type ice evaporator having refrigerant tubes with a bonded structure The present invention relates to an evaporator for ice making, and more specifically, to an evaporator for ice making that can improve ice making efficiency while simplifying the structure. A traditional cooling system consists of a compressor that compresses low-temperature, low-pressure gaseous refrigerant supplied from an evaporator into high temperature, high pressure; a condenser that converts the high-temperature, high-pressure gaseous refrigerant supplied from the compressor into medium-temperature, high-pressure liquid refrigerant; an expansion valve (capillary tube) that reduces the refrigerant supplied from the condenser to low temperature, low pressure; and an evaporator that enables cooling by absorbing ambient heat as the low-temperature, low-pressure refrigerant vaporizes. Such cooling systems are used in various devices, such as air conditioners, ice makers, and water chillers. In particular, ice-making evaporators are used to make ice and can be classified into tubular evaporators in which freezing occurs on the surface of the finger member and plate-type evaporators in which freezing occurs on the surface of the plate. Referring to FIGS. 1 and 2, a conventional plate-type evaporator (10) has a structure in which a plurality of refrigerant pipes (12) are arranged at a predetermined interval between a pair of freezing plates (11U, 11D), and a plurality of flow paths (14) through which ice-making water (W) flows in a direction perpendicular to the refrigerant pipes (12) are formed on the surface of each freezing plate (11) by means of partitions (13) spaced apart at a predetermined interval. Accordingly, when refrigerant is supplied through the refrigerant pipes (12) and ice-making water (W) flows in and out along the surface of each flow path (14) at the same time, the cold air from the refrigerant pipes (12) is transferred to the freezing plates (11), and ice (20) is formed as it grows on the surface of the freezing plates (11) where the refrigerant pipes (12) are located. This plate-type evaporator (10) has the advantage of being able to generate a large amount of ice simultaneously by increasing the surface area of the freezing plates (11). Meanwhile, a plate-type evaporator with the configuration described above has the disadvantage that the thickness of the evaporator increases as refrigerant tubes are inserted between a pair of freezing plates. Additionally, the ice-making efficiency of the evaporator is reduced because the cold air from the refrigerant tubes is transferred to the ice-making water through the freezing plates. Furthermore, the evaporator has the disadvantage that ice-making efficiency is reduced because some of the cold air from the refrigerant is lost into the space formed between the pair of freezing plates. To overcome these drawbacks, Korean Patent Publication No. 10-2024-0112671 introduces an evaporator for ice making that improves ice making efficiency. The evaporator of the above patent document is configured such that perforated holes are formed in the freezing plate, allowing the surface of the refrigerant pipe to be exposed to the outside of the freezing plate. Accordingly, the ice-making water flowing through the path comes into direct contact with the refrigerant pipe to generate ice, thereby exhibiting the effect of improving ice making efficiency. However, the evaporator of the aforementioned patent document still exhibits limitations in reducing thickness due to the refrigerant tubes, and the disadvantage of reduced ice-making efficiency due to cold air loss into the internal space of a pair of freezing plates is still present. Furthermore, the ice-making water comes into contact with the refrigerant tubes only in a narrow area where perforated holes are formed, which limits the improvement of ice-making efficiency. FIG. 1 is a perspective view showing an evaporator for ice making according to the prior art. FIG. 2 is a cross-sectional view showing the ice-making evaporator of FIG. 1. FIG. 3 is a perspective view showing an evaporator for ice making according to the present embodiment, FIG. 4 is a cross-sectional view showing the ice-making evaporator of FIG. 3. FIG. 5 is a conceptual diagram showing the internal structure of the ice-making evaporator of FIG. 3. FIGS. 6 to 8 are conceptual diagrams showing various modified examples of the internal structure of an ice-making evaporator according to the present embodiment. FIG. 9 is a drawing showing another example of an ice-making evaporator according to the present embodiment. FIG. 10 is a drawing showing another example of a utility evaporator according to the present embodiment. The technical problems achieved by the present invention and its implementation will be clarified by the preferred embodiments described below. Hereinafter, preferred embodiments of the present invention will be examined in detail with reference to the at