Dual-system ice maker

Abstract

The utility model relates to ice-making equipment, in particular to a dual-system ice-making machine, which comprises a rack, a double-system ice-making system and a double-system ice-making system, the evaporator mechanism and the condensation mechanism are oppositely arranged; the first compressor and the second compressor are arranged on the upper side and the lower side of the partition plate correspondingly; inlets of the first heat exchange tube and the second heat exchange tube are arranged at the bottom of the evaporator mechanism in the vertical direction, main body parts of the first heat exchange tube and the second heat exchange tube are attached to and coiled on one side of the evaporator mechanism, and outlets of the first heat exchange tube and the second heat exchange tube are arranged in the middle of the evaporator mechanism. Wherein the first heat exchange tube and the second heat exchange tube are arranged in parallel. By means of the structure, the first heat exchange pipe and the second heat exchange pipe can be arranged in parallel, the height difference of the inlet and the outlet of the first heat exchange pipe and the height difference of the inlet and the outlet of the second heat exchange pipe are reduced, the heat exchange effect is more uniform, the ice making quality is improved, and the ice maker is more convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to an ice-making device, in particular to a dual-system ice maker. Background Art

[0002] The description in this part only provides background information related to the disclosure of the utility model, and does not constitute prior art.

[0003] An ice maker is a refrigeration mechanical device that cools water through an evaporator by a refrigerant of a refrigeration system, and uses the refrigeration system with water as a carrier to make ice after passing through a certain device under the power-on state. According to the principle of the evaporator and different production methods, the shapes of the generated ice cubes are also different; generally, ice makers are classified into pellet ice makers, flake ice makers, cube ice makers, round ice makers, tube ice makers, shell ice makers, etc. according to the shape of the ice.

[0004] A dual-system ice maker refers to an ice maker with two independent refrigeration systems. Specifically, it means a heat exchange system composed of two independent compressors, pipelines, and throttling device units in an ice maker, and each heat exchange system can be independently controlled and operate independently of each other, and can operate simultaneously or alternately to make ice according to requirements, meeting different usage scenarios and demands. Its main purpose is to solve the problems such as high cost, complex structure, and potential safety hazards caused by excessive refrigerant loaded in the existing single compressor, and it is more flexible to use. When one system fails, the other system can continue to operate to ensure the normal operation of the ice maker and improve reliability.

[0005] Existing dual-system ice makers generally have a large heat exchange area, and uneven refrigeration often occurs in the heat exchange at the evaporator position, resulting in poor ice-making quality. At the same time, since the dual system also increases the complexity of pipeline layout and it is difficult to organize the pipeline system, the installation or maintenance difficulty of the ice maker is increased.

[0006] Currently, there is no dual-system ice maker that can solve the above problems. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a dual-system ice maker, which can parallelly arrange the first heat exchange tube and the second heat exchange tube, and reduce the height difference between the inlets and outlets of the first heat exchange tube and the second heat exchange tube, so as to make the heat exchange effect more uniform, improve the ice-making quality, and make the installation and maintenance of the ice maker more convenient.

[0008] To achieve the above purpose, the utility model discloses the following dual-system ice maker; the dual-system ice maker includes:

[0009] A frame, the frame includes a first side and a second side which are vertically arranged, and the first side and the second side are arranged opposite to each other, and a partition plate which is horizontally arranged is included between the first side and the second side;

[0010] An evaporator mechanism, the evaporator mechanism is arranged on the first side;

[0011] A condensing mechanism, the condensing mechanism is arranged on the second side;

[0012] A first compressor and a second compressor, the first compressor and the second compressor are respectively arranged on the upper and lower sides of the partition plate along the vertical direction;

[0013] A first heat exchange tube and a second heat exchange tube, the inlets of the first heat exchange tube and the second heat exchange tube are arranged at the bottom position of the evaporator mechanism along the vertical direction, the main parts of the first heat exchange tube and the second heat exchange tube are attached and coiled on one side of the evaporator mechanism, and the outlets of the first heat exchange tube and the second heat exchange tube are arranged at the middle position of the evaporator mechanism along the vertical direction;

[0014] Wherein, the input of the first compressor is connected to the outlet of the first heat exchange tube, and the output end of the first compressor sequentially passes through the condensing mechanism and the first throttling device and then is connected to the inlet of the first heat exchange tube; the input of the second compressor is connected to the outlet of the second heat exchange tube, and the output end of the second compressor sequentially passes through the condensing mechanism and the second throttling device and then is connected to the inlet of the second heat exchange tube; the first heat exchange tube and the second heat exchange tube are arranged in parallel.

[0015] Further, the first heat exchange tube and the second heat exchange tube are arranged in a serpentine pattern and evenly cover one side of the evaporator mechanism.

[0016] Further, the outlets of the first heat exchange tube and the second heat exchange tube are provided with an equal number of serpentine bends up and down.

[0017] Further, the outlets and inlets of the first heat exchange tube and the second heat exchange tube are jointly arranged on the same side of the evaporator mechanism along the horizontal direction away from the first compressor and the second compressor.

[0018] Further, the evaporator mechanism includes a heat transfer plate, the main parts of the first heat exchange tube and the second heat exchange tube are jointly attached to one side of the heat transfer plate, and an ice making grid is arranged on the side of the heat transfer plate away from the first heat exchange tube and the second heat exchange tube.

[0019] Further, the main parts of the first heat exchange tube and the second heat exchange tube share the same complete surface of the heat transfer plate.

[0020] Further, the first throttling device and the second throttling device are jointly arranged on the same side of the evaporator mechanism away from the first compressor and the second compressor in the horizontal direction.

[0021] Further, the first throttling device and the second throttling device are configured as expansion valves.

[0022] By means of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0023] 1. For the dual-system ice maker of the present utility model, by arranging the first heat exchange tube and the second heat exchange tube in parallel, the first heat exchange tube and the second heat exchange tube are equidistantly arranged on one side of the evaporator mechanism along a preset route, improving the balance of the heat exchange effect between the two systems and the evaporator mechanism, and making the ice-making effect better.

[0024] 2. The height difference between the inlets and outlets of the first heat exchange tube and the second heat exchange tube of the dual-system ice maker of the present utility model is smaller, and they are arranged on the same side of the evaporator mechanism, making it easier to organize the pipeline layout of the refrigerant and easier to realize the welding of the pipelines, which helps to improve the balance of the pre-installation and post-maintenance of the present utility model. At the same time, it avoids the influence on the ice-making quality caused by the difference in the heat exchange effect between the inlets and outlets of the first heat exchange tube and the second heat exchange tube, and reduces the influence brought by the heat exchange gap between the inlet and outlet positions of the first heat exchange tube and the second heat exchange tube.

[0025] To further understand the features and technical content of the present utility model, please refer to the following detailed description and drawings of the present utility model. However, the provided drawings are only for reference and illustration, and are not used to limit the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in this specification. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic diagram of an ice maker of a dual-system ice maker provided by an embodiment of this specification;

[0028] Figure 2 It is a schematic diagram of the first heat exchange tube and the second heat exchange tube of a dual-system ice maker provided by an embodiment of this specification;

[0029] In the figure: 1, frame; 11, partition; 2, evaporator mechanism; 3, first compressor; 4, second compressor; 5, first heat exchange tube; 6, second heat exchange tube; 7, first throttling device; 8, second throttling device. Detailed implementation

[0030] In order to enable those skilled in the art to better understand the technical solutions in this specification, the following will clearly and completely describe the technical solutions in the embodiments of this specification in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this specification.

[0031] The following are specific embodiments to illustrate the implementation of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. Additionally, the drawings of the present invention are only simple schematic illustrations and are not drawn according to actual dimensions, hereby stating in advance. The following embodiments will further detail the related technical content of the present invention, but the disclosed content is not intended to limit the protection scope of the present invention.

[0032] It should be understood that although terms such as "first", "second", and "third" may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another, or one signal from another. Additionally, the term "or" used herein should, depending on the actual situation, possibly include any one or a combination of multiple of the associated listed items.

[0033] Please refer to Figure 1-2 , a dual-system ice maker for this embodiment; wherein the dual-system ice maker includes:

[0034] Frame 1, the frame 1 includes a vertically arranged first side and a second side, and the first side and the second side are relatively arranged, and a horizontally arranged partition 11 is included between the first side and the second side;

[0035] Evaporator mechanism 2, the evaporator mechanism 2 is arranged on the first side;

[0036] Condensing mechanism, the condensing mechanism is arranged on the second side;

[0037] The first compressor 3 and the second compressor 4, the first compressor 3 and the second compressor 4 are respectively arranged on the upper and lower sides of the partition along the vertical direction;

[0038] The first heat exchange tube 5 and the second heat exchange tube 6, the inlets of the first heat exchange tube 5 and the second heat exchange tube 6 are arranged at the bottom position of the evaporator mechanism 2 along the vertical direction, the main parts of the first heat exchange tube 5 and the second heat exchange tube 6 are attached and coiled around one side of the evaporator mechanism 2, and the outlets of the first heat exchange tube 5 and the second heat exchange tube 6 are arranged at the middle position of the evaporator mechanism 2 along the vertical direction;

[0039] Wherein, the output end of the first compressor 3 is connected to the inlet of the first heat exchange tube 5 through the first throttling device 7, and the input end of the first compressor 3 is connected to the outlet of the first heat exchange tube 5 through the condensation mechanism; the output end of the second compressor 4 is connected to the inlet of the second heat exchange tube 6 through the second throttling device 8, and the input end of the second compressor 4 is connected to the outlet of the second heat exchange tube 6 through the condensation mechanism; the first heat exchange tube 5 and the second heat exchange tube 6 are arranged in parallel.

[0040] For the above structure, during installation, first provide a frame 1 with corresponding dimensions, and install the partition 11 of the frame 1 at the middle position of the frame 1, so that the upper and lower two spaces are separated by the partition 11 on one side of the frame 1. Then place the first compressor 3 on the partition 11, and place the second compressor 4 on the base of the frame 1 under the partition 11, so that the first compressor 3 and the second compressor 4 are arranged in parallel on one side of the frame 1. Install the first heat exchange tube 5 and the second heat exchange tube 6 on one side of the evaporator mechanism 2, so that the main positions of the first heat exchange tube 5 and the second heat exchange tube 6 are arranged in parallel, and a preset distance is separated between the first heat exchange tube 5 and the second heat exchange tube 6, and they are wound and attached to the inner side of the evaporator mechanism 2 in a serpentine or other reasonable configuration, so that the inlets of the first heat exchange tube 5 and the second heat exchange tube 6 are arranged close to the bottom of the frame 1 and the evaporator mechanism 2, and the outlets of the first heat exchange tube 5 and the second heat exchange tube 6 are arranged to avoid the top area of the evaporator mechanism 2. That is to say, the height difference between the outlets and inlets of the first heat exchange tube 5 and the second heat exchange tube 6 is shortened, so that the pipes connected to the inlets and outlets of the first heat exchange tube 5 and the second heat exchange tube 6 can be welded on the side closer to the bottom of the frame 1. Among them, the layout of the first throttling device 7 and the second throttling device 8 is installed on one side of the inlets of the first heat exchange tube 5 and the second heat exchange tube 6, and finally a relatively large space is left vacant at the middle position of the frame 1, so as to facilitate the organization of other structures such as water pumps, ice pushers and sensors.

[0041] With the above structure, during operation, the operator only needs to start the control host to drive the first compressor 3 and the second compressor 4 to operate, and the refrigerant can start to flow in the system of this embodiment. First, the first compressor 3 compresses the refrigerant to a high-temperature and high-pressure state, and then transmits it to the condensing mechanism through a pipeline to reduce the temperature of the high-temperature and high-pressure refrigerant. Then, the pressure of the cooled refrigerant is released through the first throttling device 7, and the refrigerant vaporizes and absorbs heat. At the same time, it enters the first heat exchange tube 5 through the inlet of the first heat exchange tube 5, so that the vaporized low-temperature refrigerant in the first heat exchange tube 5 absorbs the heat of the water on one side of the evaporator mechanism 2, causing the evaporator mechanism 2 to condense the water into ice, achieving the effect of ice making. Then, the vaporized refrigerant is discharged from the outlet of the first heat exchange tube 5 back to the first compressor 3 and compressed into a high-temperature and high-pressure state. Similarly, synchronously, the second compressor 4 compresses the refrigerant to a high-temperature and high-pressure state, and then transmits it to the condensing mechanism through a pipeline to reduce the temperature of the high-temperature and high-pressure refrigerant. Then, the pressure of the cooled refrigerant is released through the second throttling device 8, and the refrigerant vaporizes and absorbs heat. At the same time, it enters the second heat exchange tube 6 through the inlet of the second heat exchange tube 6, so that the vaporized low-temperature refrigerant in the second heat exchange tube 6 absorbs the heat of the water on one side of the evaporator mechanism 2, causing the evaporator mechanism 2 to condense the water into ice, achieving the effect of ice making. Then, the vaporized refrigerant is discharged from the outlet of the second heat exchange tube 6 back to the second compressor 4 and compressed into a high-temperature and high-pressure state. The first compressor 3 and the second compressor 4 operate synchronously to achieve a more balanced heat absorption effect on the water at the evaporator mechanism 2.

[0042] In the above process, since the same set of evaporator mechanism 2 system is shared, the evaporator mechanism 2 has a relatively large surface area. However, the refrigerant at the inlet position of the first heat exchange tube 5 and the second heat exchange tube 6 has the lowest temperature. As the refrigerant continuously absorbs heat during the flow process, when the refrigerant flows to the outlet positions of the first heat exchange tube 5 and the second heat exchange tube 6, the temperature of the refrigerant has increased slightly. In the existing arrangement of the main bodies of the first heat exchange tube 5 and the second heat exchange tube 6 in the evaporator mechanism 2, generally, the inlet and outlet are arranged on the upper and lower sides of the evaporator mechanism 2 respectively. In summary, this makes the heat exchange capacity of the evaporator mechanism 2 for water stronger at the inlets of the first heat exchange tube 5 and the second heat exchange tube 6, but weaker at the outlet positions of the first heat exchange tube 5 and the second heat exchange tube 6. Therefore, it may lead to uneven ice-making effect and affect the quality of the final ice output. However, in this embodiment, the outlet positions of the first heat exchange tube 5 and the second heat exchange tube 6 are arranged at the middle position of the evaporator mechanism 2 closer to the inlet positions of the first heat exchange tube 5 and the second heat exchange tube 6 through special routing, greatly reducing the temperature difference at the inlet and outlet positions of the first heat exchange tube 5 and the second heat exchange tube 6 in the evaporator mechanism 2, balancing the heat exchange capacity of each part of the evaporator mechanism 2, and making the ice-making effect of this embodiment more balanced and stable. It should be noted that in this embodiment, since the first heat exchange tube 5 and the second heat exchange tube 6 share a chassis, and the first heat exchange tube 5 and the second heat exchange tube 6 are arranged in parallel, with the same inlet position and the same outlet position, having the same length and the same bending turning points, during the heat exchange process, the first heat exchange tube 5 and the second heat exchange tube 6 can supplement each other's refrigerating capacity, making the refrigerating effect more uniform.

[0043] Meanwhile, in this embodiment, the first heat exchange tube 5 and the second heat exchange tube 6 are arranged in a serpentine shape and evenly cover one side of the evaporator mechanism. Moreover, the outlets and inlets of the first heat exchange tube 5 and the second heat exchange tube 6 are jointly arranged on the same side of the evaporator mechanism 2 far away from the first compressor 3 and the second compressor 4 along the horizontal direction, making the inlets and outlets of the first heat exchange tube 5 and the second heat exchange tube 6 closer to the base of the frame 1, with fewer bends in the pipeline, easier to organize the streamline, and easier to weld during the installation process. It also helps with the later maintenance operation of the refrigerant in this embodiment. The layout method of the first heat exchange tube 5 and the second heat exchange tube 6 in this embodiment can leave more areas in the middle position of the frame 1 for installing other structural devices, and the welding positions of the main pipelines are closer to the bottom of the supporting frame 1, with stable structure and easier to maintain. Taking the outlets of the first heat exchange tube 5 and the second heat exchange tube 6 as the reference, there are equal numbers of bends above and below respectively, preferably three bends above and below each. The parallel serpentine layout can also effectively equalize the two refrigeration systems, making the cooperation degree of the two refrigeration systems better in the synchronous working state.

[0044] Furthermore, the evaporator mechanism 2 includes a heat transfer plate. The main parts of the first heat exchange tube 5 and the second heat exchange tube 6 are jointly attached to one side of the heat transfer plate. An ice-making grid is provided on the side of the heat transfer plate away from the first heat exchange tube 5 and the second heat exchange tube 6. At the same time, the main parts of the first heat exchange tube 5 and the second heat exchange tube 6 share the same complete surface of the heat transfer plate. That is to say, the heat exchange tubes of the two sets of systems in this embodiment share the heat transfer plate of the same evaporator mechanism 2. In terms of the use effect, it is closer to a single system, but the amount of the corresponding refrigerant (specifically propane in this embodiment) in each system is lower, which helps to reduce the cost of the compressor in this embodiment. Generally speaking, the less the amount of refrigerant in the compressor, the higher the system safety and the lower the system cost.

[0045] Furthermore, the first throttling device 7 and the second throttling device 8 are jointly arranged on the same side of the evaporator mechanism 2 along the horizontal direction away from the first compressor 3 and the second compressor 4, and the first throttling device 7 and the second throttling device 8 are set as expansion valves. Specifically, in many existing ice-making machine systems, a capillary tube structure is mostly used as the throttling device, but the expansion valve structure adopted in this embodiment can better control the refrigerant flow rate. In different operating environments, the system can self-regulate the refrigerant flow rate according to the external temperature environment to meet the requirements of uniform ice-making and fast ice-making speed, which has significant advantages compared with the capillary tube.

[0046] The content disclosed above is only the preferred feasible embodiment of the present invention, and does not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present invention are included in the scope of the patent application of the present invention.

[0047] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other, and the key points of each embodiment are the differences from other embodiments.

[0048] Although the present application is depicted through embodiments, those of ordinary skill in the art know that the present application has many deformations and changes without departing from the spirit of the present application. It is hoped that the appended embodiments include these deformations and changes without departing from the present application.

Claims

1. A dual-system ice maker; characterized in that, The dual-system ice maker includes: A frame, the frame includes a vertically arranged first side and a second side, and the first side and the second side are arranged opposite to each other, and a horizontally arranged partition board is included between the first side and the second side; An evaporator mechanism, the evaporator mechanism is arranged on the first side; A condensing mechanism, the condensing mechanism is arranged on the second side; A first compressor and a second compressor, the first compressor and the second compressor are respectively arranged on the upper and lower sides of the partition board in the vertical direction; A first heat exchange tube and a second heat exchange tube, the inlets of the first heat exchange tube and the second heat exchange tube are arranged at the bottom position of the evaporator mechanism in the vertical direction, the main parts of the first heat exchange tube and the second heat exchange tube are attached and coiled around one side of the evaporator mechanism, and the outlets of the first heat exchange tube and the second heat exchange tube are arranged at the middle position of the evaporator mechanism in the vertical direction; Wherein, the input of the first compressor is connected to the outlet of the first heat exchange tube, and the output end of the first compressor sequentially passes through the condensing mechanism and the first throttling device and then is connected to the inlet of the first heat exchange tube; the input of the second compressor is connected to the outlet of the second heat exchange tube, and the output end of the second compressor sequentially passes through the condensing mechanism and the second throttling device and then is connected to the inlet of the second heat exchange tube; the first heat exchange tube and the second heat exchange tube are arranged in parallel.

2. The dual-system ice maker according to claim 1, wherein: The first heat exchange tube and the second heat exchange tube are arranged in a serpentine shape and evenly cover one side of the evaporator mechanism.

3. The dual-system ice maker according to claim 2, wherein: The outlets of the first heat exchange tube and the second heat exchange tube are provided with an equal number of serpentine bends up and down.

4. The dual-system ice maker according to claim 1, wherein: The outlets and inlets of the first heat exchange tube and the second heat exchange tube are jointly arranged on the same side of the evaporator mechanism in the horizontal direction away from the first compressor and the second compressor.

5. The dual-system ice maker according to claim 1, wherein: The evaporator mechanism includes a heat transfer plate, the main parts of the first heat exchange tube and the second heat exchange tube are jointly attached to one side of the heat transfer plate, and an ice making grid is arranged on the side of the heat transfer plate away from the first heat exchange tube and the second heat exchange tube.

6. The dual-system ice maker according to claim 5, characterized in that: The main parts of the first heat exchange tube and the second heat exchange tube share the same complete surface of the heat transfer plate.

7. The dual-system ice maker according to claim 1, wherein: The first throttling device and the second throttling device are jointly arranged on the same side of the evaporator mechanism in the horizontal direction away from the first compressor and the second compressor.

8. The dual-system ice maker according to claim 1, wherein: The first throttling device and the second throttling device are set as expansion valves.

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