Regenerative device and ice maker

Abstract

The utility model relates to a heat regeneration device and an ice maker, the heat regeneration device is arranged in the ice maker, the ice maker comprises a compressor, a condenser, a throttling device and an evaporator, and the heat regeneration device comprises a supporting piece, a heat exchanger and a heat exchanger, the pipeline assembly comprises a coil pipe fitting, the coil pipe fitting is arranged in the containing cavity, the coil pipe fitting comprises a first refrigerant pipe and a second refrigerant pipe, the second refrigerant pipe is arranged on the peripheral side of the first refrigerant pipe in a sleeving mode to form the coil pipe fitting, the first refrigerant pipe is spirally wound in the radial direction of the first refrigerant pipe, and the first refrigerant pipe is stacked layer by layer in the height direction of the containing cavity. According to the heat regeneration device, the vertical space is effectively utilized, the heat dissipation space can be increased on the premise that the overall size of the ice maker is not increased, heat dissipation of the condenser is facilitated, and the overall heat dissipation efficiency of the ice maker is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of ice-making equipment, and in particular to a heat recovery device and an ice-making machine. Background Art

[0002] An ice maker is a mechanical device that cools water through a refrigeration system to produce ice. In refrigeration systems that use a rotary compressor as the mechanical energy source, the absence of a heat recovery device can lead to incomplete evaporation of the refrigerant, resulting in liquid in the refrigerant and the risk of compressor hammer. Plate heat exchangers or coil regenerators are currently widely used as heat recovery devices, effectively preventing compressor hammer and improving heat exchange efficiency.

[0003] In related technologies, plate heat exchangers are more expensive than coil heat exchangers for the same cooling capacity. In coil heat exchangers, to facilitate connection between the coil and the various refrigeration components, they are typically placed horizontally, with the coil's axis parallel to the horizontal. Because the coils are spirally wound and stacked layer by layer along their own axis, the coil heat exchanger is relatively thick. However, the internal space of the ice maker is limited, and the coil heat exchanger inevitably takes up the condenser's heat dissipation space, thus affecting the unit's heat dissipation efficiency. Utility Model Content

[0004] The present application provides a heat recovery device and an ice maker to solve the technical problem that the existing coil heat regenerator is relatively thick and, due to the limited internal layout space of the ice maker, the coil heat regenerator will occupy the heat dissipation space of the condenser, thereby affecting the heat dissipation efficiency of the unit.

[0005] In a first aspect, the present application provides a heat recovery device, which is arranged in an ice maker. The ice maker includes a compressor, a condenser, a throttling device and an evaporator. The heat recovery device includes:

[0006] A support member, the support member including a receiving cavity;

[0007] The piping assembly includes a coil member disposed in the accommodating cavity, the coil member including a first refrigerant tube and a second refrigerant tube, the second refrigerant tube being sleeved on the outer circumference of the first refrigerant tube, the first refrigerant tube being spirally coiled along its own radial direction, and adjacent tube sections of the first refrigerant tube being stacked in a height direction of the accommodating cavity;

[0008] Among them, the first refrigerant pipe is used to connect the refrigerant outlet of the condenser and the refrigerant inlet of the throttling device, and an interlayer channel is formed between the outer wall surface of the first refrigerant pipe and the inner wall surface of the second refrigerant pipe. The interlayer channel is used to connect the refrigerant outlet of the evaporator and the air intake of the compressor.

[0009] In a possible implementation manner, a normal line of a radial plane where the coiled tubing is located is parallel to a thickness direction of the support member.

[0010] In one possible implementation, a first end of the first refrigerant pipe is provided with a first bent section, the first bent section being connected to the refrigerant outlet of the condenser, and a second end of the first refrigerant pipe is provided with a second bent section, the second bent section being connected to the refrigerant inlet of the throttling device;

[0011] A first pipe is provided at the first end of the interlayer channel, and the first pipe is connected to the refrigerant outlet of the evaporator. A second pipe is provided at the second end of the interlayer channel, and the second pipe is connected to the air intake of the compressor.

[0012] In a possible implementation, the length of the first refrigerant pipe is greater than 2.7 m, and the length of the second refrigerant pipe is greater than 2.5 m.

[0013] In a possible implementation, the outer diameter of the second refrigerant pipe is set to 10 mm-15 mm.

[0014] In a possible implementation, the outer diameter of the first refrigerant tube is set to 5 mm-8 mm.

[0015] In one possible implementation, the support member includes a first support plate and a second support plate, the first support plate and the second support plate are arranged opposite to each other, the two sides of the first support plate are connected one-to-one with the two sides of the second support plate, and the coil member is fixedly arranged on the first support plate or the second support plate.

[0016] In one possible implementation, the first bend section passes through the first support plate or the second support plate away from the end of the first refrigerant tube and extends toward the refrigerant outlet of the condenser; the second bend section passes through the first support plate or the second support plate away from the end of the first refrigerant tube and extends toward the refrigerant inlet of the throttling device.

[0017] In a possible implementation, the support member includes a first foam plate and a second foam plate that are arranged opposite to each other, and the first foam plate, the second foam plate, the first support plate and the second support plate are arranged to form a receiving cavity.

[0018] In one possible implementation, the pipeline assembly includes a bracket and a fastener. The bracket is arranged on the side of the first support plate facing the second support plate, or the bracket is arranged on the side of the second support plate facing the first support plate, and a fastener is arranged between the coil and the bracket.

[0019] In a possible implementation, the accommodating cavity is provided with a thermal insulation layer.

[0020] In the second aspect, the present application provides an ice making machine, including a compressor, a condenser, a throttling device, an evaporator and the heat recovery device as described above, the exhaust port of the compressor is connected to the refrigerant inlet of the condenser, the refrigerant outlet of the throttling device is connected to the refrigerant inlet of the evaporator, the first refrigerant pipe of the heat recovery device is used to connect the refrigerant outlet of the condenser and the refrigerant inlet of the throttling device, and the interlayer channel of the heat recovery device is used to connect the refrigerant outlet of the evaporator and the air intake of the compressor.

[0021] In one possible implementation, the invention includes a box body, a support member of the heat recovery device is longitudinally arranged in the box body to divide the internal space of the box body into a first chamber and a second chamber, a compressor, a condenser and a throttling device are arranged in the first chamber, an evaporator is arranged in the second chamber, and an ice mold is arranged on the evaporator.

[0022] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0023] The heat recovery device and ice maker provided by the embodiment of the present application have a first refrigerant pipe for connecting the refrigerant outlet of the condenser and the refrigerant inlet of the throttling device, high-temperature refrigerant circulates in the first refrigerant pipe, and the interlayer channel is used to connect the refrigerant outlet of the evaporator and the air intake of the compressor. Low-temperature refrigerant circulates in the interlayer channel formed between the first refrigerant pipe and the second refrigerant pipe. During the normal operation of the heat recovery device, the low-temperature refrigerant can exchange heat with the high-temperature refrigerant, so that the low-temperature refrigerant in the first refrigerant pipe completely evaporates to form a gaseous refrigerant, thereby preventing the compressor from inhaling liquid. At the same time, it can reduce the outlet refrigerant temperature of the condenser, improve the high-temperature refrigeration capacity, and improve the energy efficiency of the ice maker. The first refrigerant pipe and the second refrigerant pipe are both arranged in the accommodating cavity of the support member, which is conducive to refrigerant insulation, improves the heat exchange efficiency between the low-temperature refrigerant and the high-temperature refrigerant, and further reduces the probability of the compressor inhaling liquid. Since the first refrigerant pipe is spirally coiled along its own radial direction and the adjacent pipe sections of the first refrigerant pipe are stacked in the height direction of the accommodating cavity, the coil component effectively utilizes the vertical space and saves the horizontal space. Therefore, the thickness of the support component is relatively thin, thereby saving the horizontal arrangement space of the heat recovery device in the ice maker. Without increasing the overall size of the ice maker, the heat dissipation space can be greatly increased, which is beneficial to the heat dissipation of the condenser, thereby ensuring the overall heat dissipation efficiency of the ice maker. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0027] Figure 1 A structural diagram of an ice maker provided in an embodiment of the present application;

[0028] Figure 2 A schematic structural diagram of a heat recovery device provided in an embodiment of the present application;

[0029] Figure 3 for Figure 2 A schematic diagram of the structure of the coil member of the heat recovery device is shown;

[0030] Figure 4 for Figure 1 The schematic diagram of the working principle of the ice maker is shown, where the arrow direction is the direction of refrigerant flow.

[0031] Description of reference numerals:

[0032] 100. Ice maker;

[0033] 1. Heat recovery device;

[0034] 11. Support member; 111. Accommodating cavity; 112. First support plate; 113. Second support plate; 114. First foaming plate; 115. Second foaming plate;

[0035] 12. Pipe assembly; 121. Coil assembly; 1211. First refrigerant pipe; 1212. Second refrigerant pipe; 1213. Interlayer channel; 1214. Radial plane; 122. First bend section; 123. Second bend section; 124. First piping; 125. Second piping; 126. Bracket; 127. Fastener;

[0036] 2. Compressor; 3. Condenser; 4. Throttling device; 5. Evaporator; 51. Ice mold; 6. Fan; 7. Box; 71. First chamber; 72. Second chamber; 8. Door; 9. Water pump. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0039] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0040] In related technologies, plate heat exchangers are more expensive than coil heat exchangers for the same cooling capacity. In coil heat exchangers, to facilitate connection between the coil and the various refrigeration components, they are typically placed horizontally, with the coil's axis parallel to the horizontal. Because the coils are spirally wound and stacked layer by layer along their own axis, the coil heat exchanger is relatively thick. However, the internal space of the ice maker is limited, and the coil heat exchanger inevitably takes up the condenser's heat dissipation space, thus affecting the unit's heat dissipation efficiency.

[0041] In order to solve the technical problem that the existing coil heat regenerator is large and the internal layout space of the ice maker is limited, the coil heat regenerator will occupy the heat dissipation space of the condenser, thereby affecting the heat dissipation efficiency of the unit, the present application provides a heat regenerator and an ice maker, the thickness of the support member is thin, and the overall lateral size of the heat regenerator is small, thereby saving the lateral layout space of the heat regenerator in the ice maker. Without increasing the overall size of the ice maker, the heat dissipation space can be greatly increased, which is beneficial to the heat dissipation of the condenser, thereby ensuring the heat dissipation efficiency of the entire ice maker.

[0042] like Figures 1 to 2 As shown, the present application provides a heat recovery device 1, which is arranged in an ice maker 100. The ice maker 100 includes a compressor 2, a condenser 3, a throttling device 4 and an evaporator 5. The heat recovery device 1 includes a support member 11 and a pipe assembly 12. The support member 11 includes a receiving chamber 111; the pipe assembly 12 includes a coil member 121, which is arranged in the receiving chamber 111. The coil member 121 includes a first refrigerant pipe 1211 and a second refrigerant pipe 1212. The second refrigerant pipe 1212 is sleeved on the first refrigerant pipe 1211. On the outer peripheral side of 11, the first refrigerant tube 1211 is spirally coiled along its own radial direction, and the adjacent tube sections of the first refrigerant tube 1211 are stacked in the height direction of the accommodating cavity 111; wherein, the first refrigerant tube 1211 is used to connect the refrigerant outlet of the condenser 3 and the refrigerant inlet of the throttling device 4, and an interlayer channel 1213 is formed between the outer wall surface of the first refrigerant tube 1211 and the inner wall surface of the second refrigerant tube 1212, and the interlayer channel 1213 is used to connect the refrigerant outlet of the evaporator 5 and the air intake of the compressor 2.

[0043] It is understood that first refrigerant pipe 1211 is used to connect the refrigerant outlet of condenser 3 and the refrigerant inlet of throttling device 4. High-temperature refrigerant circulates within first refrigerant pipe 1211. Interlayer channel 1213 is used to connect the refrigerant outlet of evaporator 5 and the air intake of compressor 2. Interlayer channel 1213 formed between first refrigerant pipe 1211 and second refrigerant pipe 1212 circulates low-temperature refrigerant. During normal operation of heat recovery device 1, low-temperature refrigerant can exchange heat with high-temperature refrigerant, causing the low-temperature refrigerant in first refrigerant pipe 1211 to completely evaporate and form gaseous refrigerant. This prevents liquid carryover from compressor 2, reduces the outlet refrigerant temperature of condenser 3, improves high-temperature cooling capacity, and enhances the energy efficiency of ice maker 100. Both first refrigerant pipe 1211 and second refrigerant pipe 1212 are disposed within accommodating cavity 111 of support member 11, which facilitates refrigerant heat preservation, improves heat exchange efficiency between low-temperature refrigerant and high-temperature refrigerant, and further reduces the probability of liquid carryover from compressor 2.

[0044] Since the first refrigerant tube 1211 is spirally coiled along its own radial direction, and the adjacent tube sections of the first refrigerant tube 1211 are stacked in the height direction of the accommodating chamber 111, the height direction of the accommodating chamber 111 can be the Z direction shown in the figure, and the thickness direction of the accommodating chamber 111 can be the X direction shown in the figure, so that the coil member 121 effectively utilizes the vertical (Z direction) space and saves the horizontal (X direction) space. Therefore, the thickness of the support member 11 is relatively thin, thereby saving the horizontal arrangement space of the heat recovery device 1 in the ice maker 100. Without increasing the overall size of the ice maker 100, the heat dissipation space can be greatly increased, which is beneficial to the heat dissipation of the condenser 3, thereby ensuring the heat dissipation efficiency of the ice maker 100.

[0045] Furthermore, the exhaust port of the compressor 2 is connected to the refrigerant inlet of the condenser 3, and the refrigerant outlet of the throttling device 4 is connected to the refrigerant inlet of the evaporator 5. A refrigeration cycle is formed between the compressor 2, the condenser 3, the throttling device 4, and the evaporator 5. The compressor 2 draws low-pressure refrigerant from the evaporator 5, raises the refrigerant from low pressure to high pressure, and causes the refrigerant to circulate continuously in the refrigeration cycle. The refrigerant condenses into a refrigerant liquid with a higher pressure and a higher temperature in the condenser 3. This refrigerant liquid enters the throttling device 4 through the first refrigerant pipe 1211. After being throttled by the throttling device 4, it is sent to the evaporator 5. The low-temperature refrigerant in the evaporator 5 exchanges heat with the water on the ice mold 51, causing the water in the ice mold 51 to condense into ice cubes. At the same time, the refrigerant absorbs heat and evaporates in the evaporator 5 to become a refrigerant vapor with a lower pressure. The refrigerant vapor enters the air inlet of the compressor 2 through the interlayer channel 1213, completing the refrigerant cycle.

[0046] Optionally, the throttling device 4 is used to throttle and reduce the pressure of the high-pressure refrigerant liquid from the condenser 3 to a low-pressure refrigerant liquid, and at the same time adjust the refrigerant flow entering the evaporator 5. When the throttling device 4 is adjusted to the maximum opening, the refrigerant has a maximum flow in the refrigeration pipeline. The throttling device 4 can be, but is not limited to: a capillary tube, a throttling short tube, a thermal expansion valve, an electronic expansion valve, a float valve, a throttling orifice plate, a manual expansion valve, etc.

[0047] The coil 121 can be arranged in the receiving cavity 111 of the support member 11 at an angle relative to the horizontal direction, or can be arranged vertically in the receiving cavity 111 of the support member 11. In a preferred embodiment, the normal line of the radial plane 1214 where the coil 121 is located is parallel to the thickness direction of the support member 11, that is, the coil 121 is arranged vertically in the receiving cavity 111 of the support member 11. It can be understood that if Figure 1 and Figure 2As shown, the height direction of the support member 11 can be the Z direction shown in the figure, the thickness direction of the support member 11 can be the X direction shown in the figure, the normal of the radial plane 1214 where the coil member 121 is located is parallel to the thickness direction of the support member 11, and the height direction of the support member 11 is parallel to the vertical direction Z. Then, the lateral occupied space of the heat recovery device 1 can be saved to the greatest extent, thereby greatly optimizing the pipeline layout of the ice maker 100. The fan 6 of the condenser 3 drives the fan blades to rotate through the motor to generate a strong airflow. When the airflow passes through the heat dissipation pipe or heat sink of the condenser 3, it will accelerate the heat exchange process between the refrigerant and the surrounding air. The airflow will not collide with the messy refrigerant pipes and form turbulence, thereby effectively reducing wind resistance and improving the heat exchange efficiency between the heat dissipation pipe or heat sink of the condenser 3 and the air, which is beneficial to the heat dissipation of the condenser 3, thereby ensuring the overall heat dissipation efficiency of the ice maker 100.

[0048] Of course, the normal of the radial plane 1214 where the coil 121 is located may also have an angle with the thickness direction of the support member 11, that is, the radial plane 1214 where the coil 121 is located is slightly inclined to the vertical plane, which can be specifically designed according to the internal layout space of the ice maker 100.

[0049] In one embodiment, Figure 3 As shown, the first end of the first refrigerant pipe 1211 is provided with a first bending section 122, and the first bending section 122 is connected to the refrigerant outlet of the condenser 3. The second end of the first refrigerant pipe 1211 is provided with a second bending section 123, and the second bending section 123 is connected to the refrigerant inlet of the throttling device 4; the first end of the interlayer channel 1213 is provided with a first piping 124, and the first piping 124 is connected to the refrigerant outlet of the evaporator 5. The second end of the interlayer channel 1213 is provided with a second piping 125, and the second piping 125 is connected to the intake port of the compressor 2. The refrigerant is condensed into a refrigerant liquid with higher pressure and higher temperature in the condenser 3. This part of the high-temperature refrigerant liquid discharged from the outlet of the condenser 3 enters the throttling device 4 through the first bending section 122, the first refrigerant pipe 1211 and the second bending section 123 in turn. After throttling by the throttling device 4, it is sent to the evaporator 5; the low-temperature refrigerant in the evaporator 5 exchanges heat with the water on the ice mold 51, so that the water in the ice mold 51 condenses into ice cubes. At the same time, the refrigerant absorbs heat and evaporates in the evaporator 5 to become a refrigerant vapor with lower pressure. The refrigerant vapor enters the air inlet of the compressor 2 through the first pipe 124, the interlayer channel 1213 and the second pipe 125 in turn, realizing the refrigerant circulation.

[0050] Specifically, in a preferred example, the coil member 121 includes a first refrigerant tube 1211 and a second refrigerant tube 1212, the second refrigerant tube 1212 is sleeved on the outer peripheral side of the first refrigerant tube 1211, the first refrigerant tube 1211 is spirally coiled along its own radial direction, and the adjacent tube sections of the first refrigerant tube 1211 are stacked in the height direction of the accommodating cavity 111, the normal of the radial plane 1214 where the coil member 121 is located is parallel to the thickness direction of the support member 11, and the axial direction of the first bending section 122 is perpendicular to the radial plane 1214 where the coil member 121 is located, so that the first bending section 122 extends away from one end of the first refrigerant tube 1211 toward the refrigerant outlet of the condenser 3, so that the staff can connect the first bending section 122 and the refrigerant outlet of the condenser 3. The axial direction of the second bent section 123 is perpendicular to the radial plane 1214 on which the coil assembly 121 is located, so that the second bent section 123 extends away from one end of the first refrigerant tube 1211 toward the refrigerant inlet of the throttling device 4, thereby facilitating connection between the second bent section 123 and the refrigerant inlet of the throttling device 4. The axial direction of the first piping 124 is perpendicular to the radial plane 1214 on which the coil assembly 121 is located, thereby facilitating connection between the first piping 124 and the refrigerant outlet of the evaporator 5. The axial direction of the second piping 125 is perpendicular to the radial plane 1214 on which the coil assembly 121 is located, thereby facilitating connection between the second piping 125 and the intake port of the compressor 2.

[0051] Through the above-mentioned arrangement, it is convenient for the staff to install the pipeline of the heat recovery device 1, and the horizontal space occupied by the heat recovery device 1 can be saved to the greatest extent, thereby greatly optimizing the pipeline layout of the ice maker 100. The fan 6 of the condenser 3 drives the fan blades to rotate through the motor to generate a strong airflow. When the airflow passes through the heat dissipation pipe or heat sink of the condenser 3, it will accelerate the heat exchange process between the refrigerant and the surrounding air. The airflow will not collide with the messy refrigerant pipe and form turbulence, thereby effectively reducing wind resistance and improving the heat exchange efficiency between the heat dissipation pipe or heat sink of the condenser 3 and the air, which is beneficial to the heat dissipation of the condenser 3, thereby ensuring the heat dissipation efficiency of the ice maker 100.

[0052] In an optional example, the normal of the radial plane 1214 on which the coil member 121 is located is inclined with respect to the thickness direction of the support member 11. The axis of the first bent section 122 forms a first angle with the radial plane 1214 on which the coil member 121 is located. This first angle can be an acute angle or an obtuse angle, that is, the axis of the first bent section 122 is set to be parallel to the horizontal direction as much as possible. The axis of the second bent section 123 forms a second angle with the radial plane 1214 on which the coil member 121 is located. This second angle can be an acute angle or an obtuse angle, that is, the axis of the second bent section 123 is set to be parallel to the horizontal direction as much as possible. Since the condenser 3 is arranged vertically within the ice maker 100, the above arrangement facilitates the connection between the first bent section 122 and the refrigerant outlet of the condenser 3, and between the second bent section 123 and the refrigerant inlet of the throttling device 4. Similarly, the evaporator 5 is arranged inside the ice maker 100 along the vertical direction, the axial direction of the first pipe 124 is set to be parallel to the horizontal direction as much as possible, the compressor 2 is arranged inside the ice maker along the vertical direction, and the axial direction of the second pipe 125 is set to be parallel to the horizontal direction as much as possible.

[0053] It should be noted that the first pipe 124 and the second refrigerant pipe 1212, as well as the second pipe 125 and the second refrigerant pipe 1212 need to be sealed to prevent refrigerant leakage.

[0054] In one embodiment, the length of the first refrigerant pipe 1211 is greater than 2.7 meters, and the length of the second refrigerant pipe 1212 is greater than 2.5 meters. In order to install the first pipe 124 and the second pipe 125 on the second refrigerant pipe 1212, the length of the second refrigerant pipe 1212 is generally shorter than the length of the first refrigerant pipe 1211. High-temperature refrigerant circulates in the first refrigerant pipe 1211, and high-temperature refrigerant circulates in the interlayer channel 1213 between the outer wall of the first refrigerant pipe 1211 and the inner wall of the second refrigerant pipe 1212. By setting the length of the second refrigerant pipe 1212 to be greater than 2.5 meters, sufficient heat exchange between the high-temperature refrigerant and the low-temperature refrigerant is ensured, the high-temperature refrigerant is effectively cooled, and the ice production capacity of the ice maker 100 is guaranteed to meet 200 kg / 24 hours.

[0055] In some embodiments, the outer diameter of the second refrigerant pipe 1212 is set to 10mm-15mm. For example, the outer diameter of the second refrigerant pipe 1212 can be set to 12mm, 13mm, or 14mm. Preferably, the outer diameter of the second refrigerant pipe 1212 is set to 12mm, the wall thickness is set to 1mm, and the length is set to 2.5m, so as to meet the refrigerant flow required for the normal operation of the ice maker 100 within the designed installation space, while optimizing the pressure drop of the refrigerant pipe network system as much as possible. The larger the outer diameter of the second refrigerant pipe 1212, the lower the pressure drop of the refrigerant pipe network system. At the same time, the thickness of the coil 121 will also be thicker. Therefore, the outer diameter of the second refrigerant pipe 1212 is less than or equal to 15mm, so as to avoid the heat recovery device 1 taking up too much heat dissipation space, thereby ensuring that the condenser 3 has sufficient heat dissipation space.

[0056] In some embodiments, the outer diameter of the second refrigerant pipe 1212 is set to 5mm-8mm. For example, the outer diameter of the second refrigerant pipe 1212 can be set to 6mm, 7mm, or 8mm. Preferably, the outer diameter of the second refrigerant pipe 1212 is set to 12mm, the wall thickness is set to 1mm, and the length is set to 2.5m. This is to meet the refrigerant flow rate required for the normal operation of the ice maker 100 within the designed installation space, while also minimizing the pressure drop of the refrigerant pipe network system. The larger the outer diameter of the first refrigerant pipe 1211, the lower the pressure drop of the refrigerant pipe network system. To ensure the normal circulation of the low-temperature refrigerant in the interlayer channel 1213, the outer diameter of the second refrigerant pipe 1212 must also be increased accordingly. At the same time, the thickness of the coil member 121 will also be thicker. Therefore, the outer diameter of the first refrigerant pipe 1211 is less than or equal to 8mm to prevent the heat recovery device 1 from occupying too much heat dissipation space, thereby ensuring that the condenser 3 has sufficient heat dissipation space.

[0057] In one embodiment, Figure 2 As shown, the support member 11 includes a first support plate 112 and a second support plate 113. The first support plate 112 and the second support plate 113 are arranged opposite to each other, and the two sides of the first support plate 112 are connected to the two sides of the second support plate 113 in a one-to-one correspondence. The coil member 121 is fixedly mounted on the first support plate 112 or the second support plate 113. The first support plate 112 and the second support plate 113 can both be stamped from sheet metal to improve the structural strength of the support member 11. Specifically, the two sides of the first support plate 112 are bent in a direction close to the accommodating cavity 111, and the two sides of the second support plate 113 are bent in a direction close to the accommodating cavity 111, so that the two sides of the first support plate 112 and the two sides of the second support plate 113 can be connected in a one-to-one correspondence. The bent portions can be fixed by welding or by fasteners such as screws, which will not be described in detail in this application. Of course, the first support plate 112 and the second support plate 113 can also be made of hard plastic plates, solid wood plywood and other plates with a certain supporting strength, and this application does not make any specific restrictions here.

[0058] Optionally, the first support plate 112 and the second support plate 113 are arranged opposite to each other in the first direction X, and the radial plane 1214 of the coil pipe 121 is parallel to the first support plate 112, so that the minimum distance between the first support plate 112 and the second support plate 113 in the first direction X is slightly greater than the outer diameter of the second refrigerant pipe 1212, and the accommodating cavity 111 can accommodate the coil pipe 121. The first refrigerant pipe 1211 is spirally arranged along its own radial direction, and the normal line of the radial plane 1214 where the coil pipe 121 is located is parallel to the thickness direction of the support 11, so that the thickness of the support 11 is relatively thin, the transverse space occupation of the heat recovery device 1 can be saved as much as possible, thereby greatly optimizing the pipeline arrangement of the ice maker 100, effectively reducing the wind resistance, improving the heat exchange efficiency between the heat dissipation pipeline or heat dissipation fin of the condenser 3 and the air, and facilitating the heat dissipation of the condenser 3, thereby ensuring the overall heat dissipation efficiency of the ice maker 100.

[0059] In an optional embodiment, the first bending section 122 penetrates the first support plate 112 away from one end of the first refrigerant pipe 1211 and extends towards the refrigerant outlet of the condenser 3; and the second bending section 123 penetrates the first support plate 112 away from one end of the first refrigerant pipe 1211 and extends towards the refrigerant inlet of the throttling device 4.

[0060] In an optional embodiment, the first bending section 122 penetrates the second support plate 113 away from one end of the first refrigerant pipe 1211 and extends towards the refrigerant outlet of the condenser 3; and the second bending section 123 penetrates the second support plate 113 away from one end of the first refrigerant pipe 1211 and extends towards the refrigerant inlet of the throttling device 4.

[0061] It can be understood that the one end of the first bending section 122 away from the first refrigerant pipe 1211 and the one end of the second bending section 123 away from the first refrigerant pipe 1211 are located on the same side of the support 11, if the condenser 3 and the throttling device 4 are arranged on the side close to the first support plate 112, then the one end of the first bending section 122 away from the first refrigerant pipe 1211 and the one end of the second bending section 123 away from the first refrigerant pipe 1211 both penetrate the first support plate 112; if the condenser 3 and the throttling device 4 are arranged on the side close to the second support plate 113, then the one end of the first bending section 122 away from the first refrigerant pipe 1211 and the one end of the second bending section 123 away from the first refrigerant pipe 1211 both penetrate the second support plate 113. In this way, the installation of the staff is facilitated, and the path of the pipeline is also avoided to be too long to affect the pressure drop of the refrigerant pipe network system.

[0062] If the condenser 3 and the throttling device 4 are arranged on the two sides of the second support plate 113 respectively, one end of the first bent section 122 away from the first refrigerant pipe 1211 penetrates the first support plate 112 and extends towards the refrigerant outlet of the condenser 3, and one end of the second bent section 123 away from the first refrigerant pipe 1211 penetrates the second support plate 113 and extends towards the refrigerant inlet of the throttling device 4; or, one end of the first bent section 122 away from the first refrigerant pipe 1211 penetrates the second support plate 113 and extends towards the refrigerant outlet of the condenser 3, and one end of the second bent section 123 away from the first refrigerant pipe 1211 penetrates the first support plate 112 and extends towards the refrigerant inlet of the throttling device 4.

[0063] In some embodiments, the first pipe 124 penetrates the first support plate 112 at one end away from the second refrigerant pipe 1212, so that the staff can connect the first pipe 124 and the refrigerant outlet of the evaporator 5, and the second pipe 125 penetrates the first support plate 112 at one end away from the second refrigerant pipe 1212, so that the staff can connect the second pipe 125 and the suction port of the compressor 2; or, the first pipe 124 penetrates the second support plate 113 at one end away from the second refrigerant pipe 1212, so that the staff can connect the first pipe 124 and the refrigerant outlet of the evaporator 5, and the second pipe 125 penetrates the second support plate 113 at one end away from the second refrigerant pipe 1212, so that the staff can connect the second pipe 125 and the suction port of the compressor 2; or, the first pipe 124 penetrates the first support plate 112 at one end away from the second refrigerant pipe 1212, so that the staff can connect the first pipe 124 and the refrigerant outlet of the evaporator 5, and the second pipe 125 penetrates the second support plate 113 at one end away from the second refrigerant pipe 1212, so that the staff can connect the second pipe 125 and the suction port of the compressor 2; or, the first pipe 124 penetrates the second support plate 113 at one end away from the second refrigerant pipe 1212, so that the staff can connect the first pipe 124 and the refrigerant outlet of the evaporator 5, and the second pipe 125 penetrates the first support plate 112 at one end away from the second refrigerant pipe 1212, so that the staff can connect the second pipe 125 and the suction port of the compressor 2. The routes of the first pipe 124 and the second pipe 125 are designed according to the arrangement positions of the refrigerant outlet of the evaporator 5 and the suction port of the compressor 2.

[0064] In one embodiment, as Figure 2As shown, the support member 11 includes a first foam plate 114 and a second foam plate 115 arranged relative to each other. The first foam plate 114, the second foam plate 115, the first support plate 112, and the second support plate 113 surround and form a receiving chamber 111. It should be noted that the first foam plate 114 and the second foam plate 115 can both be made of polyurethane rigid foam, a new synthetic material with heat-insulating and waterproof functions. Polyurethane rigid foam has a low thermal conductivity of only 0.022W / (m*K)-0.033W / (m*K), which is equivalent to half of that of extruded board and has the lowest thermal conductivity of all insulation materials. Therefore, it has excellent thermal insulation performance. The first foam plate 114 and the second foam plate 115 are made of polyurethane rigid foam, which is beneficial for refrigerant insulation, improves the heat exchange efficiency between low-temperature refrigerant and high-temperature refrigerant, and further reduces the probability of liquid inhalation in compressor 2.

[0065] In some embodiments, the coil member 121 is directly welded to a side of the first support plate 112 facing the second support plate 113 , or the coil member 121 is directly welded to a side of the second support plate 113 facing the first support plate 112 .

[0066] In one embodiment, Figure 2 As shown, the piping assembly 12 includes a bracket 126 and a fastener 127. The bracket 126 is disposed on the side of the first support plate 112 facing the second support plate 113, or on the side of the second support plate 113 facing the first support plate 112. The fastener 127 is disposed between the coil 121 and the bracket 126. Optionally, in this embodiment, the fastener 127 is a wire tie, which secures the coil 121 to the bracket 126. To ensure the installation stability of the coil 121, wire ties are used to secure multiple pipe sections of the coil 121 to the bracket 126 at intervals. Since adjacent pipe sections of the coil 121 overlap in the height direction of the accommodating cavity 111, wire ties can also be used to bundle adjacent pipe sections of the coil 121 before securing them to the bracket 126.

[0067] To facilitate bundling, the bracket 126 can be configured as a U-shaped bracket 126, with bolts provided at both ends of the U-shaped bracket 126, through which the U-shaped bracket 126 is fixedly mounted on the first support plate 112, or the U-shaped bracket 126 is fixedly mounted on the second support plate 113. Of course, to ensure the installation stability of the coil 121, the coil 121 and the bracket 126 can be fixed by welding.

[0068] Furthermore, multiple brackets 126 may be provided, with the brackets 126 being distributed in an annular pattern. In this embodiment, three brackets 126 are provided, and correspondingly, three wire ties are provided. Four, five, or six brackets 126 may also be provided, depending on the length of the coil 121.

[0069] In one example, the accommodating cavity 111 is provided with an insulation layer. Optionally, the insulation layer is formed by foaming and hardening polyurethane, so that the support member 11 has excellent thermal insulation performance. Specifically, the first refrigerant pipe 1211 and the second refrigerant pipe 1212 are pre-buried in the accommodating cavity 111 of the support member 11, and the coil member 121 is fixedly installed on the bracket 126 using a cable tie, and then the accommodating cavity 111 is filled with raw materials such as polyisocyanate and polyether or polyester polyol, surfactant, water, foaming agent, catalyst, other additives, etc., and foamed and hardened at room temperature to form an insulation layer. The insulation layer is beneficial to the insulation of the refrigerant, improves the heat exchange efficiency between the low-temperature refrigerant and the high-temperature refrigerant, and further reduces the probability of the compressor 2 sucking liquid.

[0070] like Figure 1 and Figure 4 As shown, an embodiment of the present application provides an ice making machine 100, including a compressor 2, a condenser 3, a throttling device 4, an evaporator 5 and the heat recovery device 1 as described above, the exhaust port of the compressor 2 is connected to the refrigerant inlet of the condenser 3, the refrigerant outlet of the throttling device 4 is connected to the refrigerant inlet of the evaporator 5, the first refrigerant pipe 1211 of the heat recovery device 1 is used to connect the refrigerant outlet of the condenser 3 and the refrigerant inlet of the throttling device 4, and the interlayer channel 1213 of the heat recovery device 1 is used to connect the refrigerant outlet of the evaporator 5 and the air intake of the compressor 2.

[0071] The first refrigerant pipe 1211 is used to connect the refrigerant outlet of the condenser 3 and the refrigerant inlet of the throttling device 4. High-temperature refrigerant circulates in the first refrigerant pipe 1211. The interlayer channel 1213 is used to connect the refrigerant outlet of the evaporator 5 and the air intake of the compressor 2. The interlayer channel 1213 formed between the first refrigerant pipe 1211 and the second refrigerant pipe 1212 circulates low-temperature refrigerant. During normal operation of the heat recovery device 1, the low-temperature refrigerant can exchange heat with the high-temperature refrigerant, causing the low-temperature refrigerant in the first refrigerant pipe 1211 to completely evaporate and form a gaseous refrigerant, thereby preventing liquid from being sucked into the compressor 2. At the same time, it can reduce the outlet refrigerant temperature of the condenser 3 and improve the high-temperature cooling capacity. The first refrigerant pipe 1211 and the second refrigerant pipe 1212 are both disposed in the accommodating cavity 111 of the support member 11, which is conducive to refrigerant heat preservation, improves the heat exchange efficiency between the low-temperature refrigerant and the high-temperature refrigerant, and further reduces the probability of liquid from being sucked into the compressor 2. Since the first refrigerant tube 1211 is spirally coiled along its own radial direction, and the adjacent tube sections of the first refrigerant tube 1211 are stacked in the height direction of the accommodating chamber 111, the height direction of the accommodating chamber 111 can be the Z direction shown in the figure, and the thickness direction of the accommodating chamber 111 can be the X direction shown in the figure, so that the coil member 121 effectively utilizes the vertical space and saves the horizontal space. Therefore, the thickness of the support member 11 is thinner, and the overall horizontal dimension of the heat recovery device 1 is smaller, thereby saving the horizontal arrangement space of the heat recovery device 1 in the ice maker 100. Without increasing the overall size of the ice maker 100, the heat dissipation space can be greatly increased, which is beneficial to the heat dissipation of the condenser 3, thereby ensuring the overall heat dissipation efficiency of the ice maker 100.

[0072] In one embodiment, Figure 1As shown, the ice maker 100 further comprises a cabinet 7, the support 11 of the heat recovery device 1 is longitudinally arranged in the cabinet 7 to divide the internal space of the cabinet 7 into a first chamber 71 and a second chamber 72, the compressor 2, the condenser 3 and the throttling device 4 are arranged in the first chamber 71, the evaporator 5 is arranged in the second chamber 72, and the ice mold 51 is arranged on the evaporator 5. The low-temperature refrigerant of the evaporator 5 exchanges heat with the water on the ice mold 51, so that the water in the ice mold 51 condenses into ice blocks. In this embodiment, since the condenser 3 and the throttling device 4 are arranged on the side close to the first support plate 112, one end of the first bent section 122 away from the first refrigerant pipe 1211 and one end of the second bent section 123 away from the first refrigerant pipe 1211 both penetrate the first support plate 112, so that the staff can connect the first bent section 122 with the refrigerant outlet of the condenser 3 and connect the second bent section 123 with the refrigerant inlet of the throttling device 4; the refrigerant outlet of the evaporator 5 and the suction port of the compressor 2 are both arranged in the first chamber 71, the first pipe 124 away from one end of the second refrigerant pipe 1212 penetrates the first support plate 112, and the second pipe 125 away from one end of the second refrigerant pipe 1212 penetrates the first support plate 112, so that the staff can connect the first pipe 124 with the refrigerant outlet of the evaporator 5 and connect the second pipe 125 with the suction port of the compressor 2.

[0073] Further, the ice mold 51 can be provided with at least one ice making groove for containing water or ice blocks. The number of ice making grooves can be multiple, and the multiple ice making grooves are distributed along the length direction of the ice mold 51 itself.

[0074] Optionally, the cabinet 7 is provided with a door body 8 on the side facing the user, and a foamed board is arranged in the door body 8, thereby achieving good heat preservation effect. The foamed board can also be made of polyurethane rigid foam, which is a new type of synthetic material with heat preservation and waterproof functions. The thermal conductivity of polyurethane rigid foam is low, only 0.022 W / (m*K)-0.033 W / (m*K), which is half of that of extruded sheet, and is the lowest among all heat preservation materials, so it has excellent heat preservation and insulation performance.

[0075] Further, the ice maker 100 further comprises a fan 6, which is arranged in the first chamber. The fan 6 drives the impeller to rotate through the motor, generating strong airflow. When the airflow passes through the heat dissipation pipeline or heat dissipation fin of the condenser 3, it can accelerate the heat exchange process between the refrigerant and the air in the first chamber 71. Since the first refrigerant pipe 1211 and the second refrigerant pipe 1212 are both pre-buried in the support 11, the airflow will not hit the disordered refrigerant pipeline to form turbulence, thereby effectively reducing the air resistance, improving the heat exchange efficiency between the heat dissipation pipeline or heat dissipation fin of the condenser 3 and the air, and facilitating the heat dissipation of the condenser 3, so as to ensure the overall heat dissipation efficiency of the ice maker 100.

[0076] In one embodiment, as shown in FIG. 1, Figure 1As shown, the ice maker 100 further includes a water system, which includes a water inlet valve, a water pump 9 and a water inlet pipe. The water pump 9 is disposed in the second chamber 72 , and is connected to the ice mold 51 through the water inlet pipe for delivering water to the ice mold 51 .

[0077] Optionally, the ice maker 100 further includes a water collection tray, which is disposed below the evaporator 5 and communicates with the external environment via a drain pipe equipped with a drain valve. The water collection tray collects condensed water from the evaporator 5. If the water level in the water collection tray exceeds the maximum water capacity, the water is drained through the drain valve.

[0078] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0079] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0080] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand and implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A heat recovery device, arranged in an ice maker, the ice maker comprising a compressor, a condenser, a throttling device and an evaporator, characterized in that: The heat recovery device comprises: A support member, the support member including a receiving cavity; A piping assembly includes a coil member disposed within the accommodating chamber, the coil member including a first refrigerant tube and a second refrigerant tube, the second refrigerant tube being sleeved on an outer circumference of the first refrigerant tube, the first refrigerant tube being spirally coiled along its own radial direction, and adjacent tube sections of the first refrigerant tube being stacked in a height direction of the accommodating chamber; Among them, the first refrigerant pipe is used to connect the refrigerant outlet of the condenser and the refrigerant inlet of the throttling device, and an interlayer channel is formed between the outer wall surface of the first refrigerant pipe and the inner wall surface of the second refrigerant pipe, and the interlayer channel is used to connect the refrigerant outlet of the evaporator and the air intake of the compressor.

2. The heat recovery device according to claim 1, characterized in that: The normal line of the radial plane where the coil member is located is parallel to the thickness direction of the accommodating cavity.

3. The heat recovery device according to claim 1 or 2, characterized in that: The first end of the first refrigerant tube is provided with a first bent section, the first bent section is connected to the refrigerant outlet of the condenser, and the second end of the first refrigerant tube is provided with a second bent section, the second bent section is connected to the refrigerant inlet of the throttling device; A first pipe is provided at the first end of the interlayer channel, and the first pipe is connected to the refrigerant outlet of the evaporator. A second pipe is provided at the second end of the interlayer channel, and the second pipe is connected to the air intake of the compressor.

4. The heat recovery device according to claim 2, characterized in that: The length of the first refrigerant pipe is greater than 2.7 m, and the length of the second refrigerant pipe is greater than 2.5 m.

5. The heat recovery device according to claim 1, characterized in that: The outer diameter of the second refrigerant pipe is set to 10mm-15mm.

6. The heat recovery device according to claim 1, characterized in that The outer diameter of the first refrigerant tube is set to 5mm-8mm.

7. The heat recovery device according to claim 3, characterized in that: The support member includes a first support plate and a second support plate, the first support plate and the second support plate are arranged opposite to each other, the two sides of the first support plate are connected one-to-one with the two sides of the second support plate, and the coil member is fixedly arranged on the first support plate or the second support plate.

8. The heat recovery device according to claim 7, characterized in that: The end of the first bending section away from the first refrigerant tube passes through the first support plate or the second support plate, and extends toward the refrigerant outlet of the condenser; the end of the second bending section away from the first refrigerant tube passes through the first support plate or the second support plate, and extends toward the refrigerant inlet of the throttling device.

9. The heat recovery device according to claim 7, characterized in that: The support member includes a first foaming plate and a second foaming plate that are opposite to each other. The first foaming plate, the second foaming plate, the first support plate and the second support plate surround and form the accommodating cavity.

10. The heat recovery device according to claim 7, characterized in that: The pipeline assembly includes a bracket and a fastener. The bracket is arranged on the side of the first support plate facing the second support plate, or the bracket is arranged on the side of the second support plate facing the first support plate. A fastener is provided between the coil and the bracket.

11. The heat recovery device according to claim 1, characterized in that: The accommodating cavity is provided with a heat-insulating layer.

12. An ice making machine, characterized in that: It includes a compressor, a condenser, a throttling device, an evaporator and a heat recovery device as described in any one of claims 1 to 11, the exhaust port of the compressor is connected to the refrigerant inlet of the condenser, the refrigerant outlet of the throttling device is connected to the refrigerant inlet of the evaporator, the first refrigerant pipe of the heat recovery device is used to connect the refrigerant outlet of the condenser and the refrigerant inlet of the throttling device, and the interlayer channel of the heat recovery device is used to connect the refrigerant outlet of the evaporator and the air intake of the compressor.

13. The ice making machine according to claim 12, wherein: The invention comprises a box body, wherein the support member of the heat recovery device is longitudinally arranged in the box body to separate the internal space of the box body into a first chamber and a second chamber, the compressor, the condenser and the throttling device are arranged in the first chamber, the evaporator is arranged in the second chamber, and an ice mold is provided on the evaporator.

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