Porous pipeline for condenser and evaporator of refrigerator

Abstract

The utility model discloses a porous pipeline for a condenser and an evaporator of a refrigerator, which comprises a cylindrical pipe body and is characterized in that a plurality of refrigerant hole channels arranged in parallel are arranged at the core part of the cylindrical pipe body and comprise a central hole channel and an outer ring hole channel, the central hole channel is positioned at the center of the pipe body, and the outer ring hole channel is positioned at the center of the pipe body. The outer ring hole channels surround the center hole channel and are evenly distributed. The heat exchange surface area of the pipeline is increased, the heat exchange efficiency is improved, uniform distribution of fluid is promoted, dead zones and turbulence phenomena are reduced, the flowing efficiency is improved, energy loss is reduced, shock absorption and sound insulation can be achieved, the use comfort of equipment is improved, temperature uniformity can be kept, local supercooling is reduced, and frosting and condensation are prevented.

Description

Technical Field

[0001] The utility model relates to refrigerator refrigeration component technology, in particular to a porous pipeline used for a refrigerator condenser and an evaporator. Background Art

[0002] The refrigerator condenser cools and converts the high-temperature, high-pressure gaseous refrigerant delivered by the compressor into a liquid state. It releases heat from the refrigerant into the surrounding environment, maintaining a low temperature inside the refrigerator. It is a key component of the refrigerator's refrigeration system. The evaporator, another key component of the refrigerator's refrigeration system, converts the low-temperature, low-pressure liquid refrigerant delivered by the throttle into a gaseous state. It absorbs heat from the refrigerator interior, lowering the internal temperature.

[0003] The condenser and evaporator pipes commonly used in refrigerators are mostly round or rectangular pipes.

[0004] Although rectangular tubes in the disclosed technology have a porous design, their manufacturing process generally relies on linear welding. Although the heat dissipation effect is good, welding defects are prone to shortening the service life or increasing the maintenance requirements. In addition, the strength of a single tube is poor, and it is easily squeezed and deformed during the molding, assembly, and transportation processes, resulting in obstruction of the refrigerant flow. In addition, the uneven flow velocity distribution of the fluid in the rectangular pipe increases energy loss. For example, patent publication number CN109579596A discloses a porous inner fin condenser tube, which includes a condenser tube and one or more inner fins disposed within the condenser tube. The inner fins are in a zigzag or wavy shape, dividing the inner cavity of the condenser tube into a plurality of chambers, and the inner fins are distributed along the axial direction of the condenser tube. Another example is a condenser porous inner fin with patent publication number CN218238519U, which includes a condenser tube body and porous inner fins. The porous inner fins are arranged inside the condenser tube body. The disassembly structure includes a fixing rod, which is fixedly connected to the bottom end of the porous inner fin. The fixing rod is inserted into the condenser tube body, and the fixing rod can move inside the condenser tube body. A moving rod is inserted into the fixed rod, and the moving rod is arranged inside the condenser tube body. The bottom end of the moving rod is fixedly connected to a pull rod.

[0005] Existing circular tubes are all single-hole tubes. While they may not be as space-efficient as rectangular tubes in some situations, their uniform overall tubular structure offers unique advantages, such as simple molding, low cost, and similarly simple manufacturing processes for condensers and evaporators. However, due to the small heat exchange area, the single-hole structure's thermal conductivity is far inferior to that of a multi-hole structure. Furthermore, the fluid flow is less uniform, turbulent, and energy-intensive, accompanied by noise. Furthermore, heat exchange tubes generally have thin walls, making single-hole tubes significantly less resistant to extrusion. Summary of the Invention

[0006] The purpose of the utility model is to solve the above problems and provide a porous pipe for refrigerator condenser and evaporator, which has the characteristics of increasing the heat exchange surface area of ​​the pipe, promoting uniform distribution of fluid, improving heat exchange efficiency, and enhancing the strength of the pipe body itself.

[0007] The above technical problems of the present invention are mainly solved by the following technical solutions: a porous pipe for a refrigerator condenser and evaporator, comprising a cylindrical tube body, characterized in that a plurality of parallel refrigerant channels are provided in the core of the cylindrical tube body, the plurality of refrigerant channels including a central channel and an outer ring channel, the central channel being located in the center of the tube body, and the outer ring channels surrounding the central channel and being evenly distributed.

[0008] In the aforementioned porous pipe for refrigerator condenser and evaporator, preferably, the spacing between the central channel and the outer ring channel, and the distance between the outer channel and the outer wall of the pipe are both greater than or equal to 0.5 mm.

[0009] In the aforementioned porous pipe for refrigerator condenser and evaporator, preferably, the diameter of the central channel is equal to the diameter of the outer ring channel.

[0010] In the aforementioned porous pipe for refrigerator condenser and evaporator, preferably, the diameter of the central channel is larger than the diameter of the outer ring channel.

[0011] In the aforementioned porous pipe for refrigerator condenser and evaporator, preferably, the diameter of the central channel is smaller than the diameter of the outer ring channel.

[0012] In the aforementioned porous pipe for refrigerator condenser and evaporator, preferably, the outer ring channel is provided with a single ring or multiple rings.

[0013] This technical solution is based on a standard cylindrical tube body, and multiple parallel refrigerant channels are formed in the core of the cylindrical tube body. These refrigerant channels are centered on the central channel, and the outer ring channels surround the central channel and are evenly distributed. Therefore, the central channel and the outer ring channels do not form an internal fin structure in the traditional sense, but a composite hole model with a high-strength structure. From a mechanical point of view, these channels are even the non-stressed parts of the cylindrical material, while the tendons between the holes form a more ideal internal support. According to the principles of bionics, the hole structure of this solution can be called a lotus root-shaped porous pipe.

[0014] Obviously, the lotus root-shaped porous tube increases the heat exchange area, which meets the requirements of high-efficiency heat exchange components such as condensers and evaporators. Since the high-temperature and high-pressure refrigerant gas discharged from the power system such as the compressor to the exhaust pipe basically fills the starting section of the condenser tube, that is, the fluid in the initial section of the heat exchange tube is uniform. Since these central channels and outer ring channels are not connected to each other, during the entire operation of the heat exchange tube, the fluid in each channel is the same as the initial inflowing liquid, so that the fluid in all channels is evenly distributed. Furthermore, the lotus root-shaped porous structure can effectively reduce vibration and noise caused by factors such as liquid flow, uneven flow, and power startup.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The porous structure tube increases the heat exchange surface area of ​​the pipeline, helps to increase the conduction and exchange of heat, and improves the heat exchange efficiency. It is suitable for occasions requiring efficient heat exchange such as condensers and evaporators.

[0017] 2. Optimize fluid flow, promote uniform distribution of fluid, reduce dead zones and turbulence, improve flow efficiency and reduce energy loss.

[0018] 3. It can reduce shock and sound, absorb part of the noise generated by the flow, reduce the noise level of the equipment during reverse flow, and improve the comfort of equipment use.

[0019] 4. In the cooling system, porous pipes help maintain uniform temperature, reduce local overcooling, prevent frost and condensation, and make it more stable when subjected to external pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present utility model.

[0021] Figure 2 This is a schematic structural diagram of an embodiment of an equal-pore channel of the present utility model.

[0022] Figures 3 to 5 It is a schematic structural diagram of several unequal through-hole embodiments of the present utility model.

[0023] Figure 6 This is a schematic structural diagram of an embodiment of a multi-layer outer ring channel of the utility model.

[0024] In the figure: 101-cylindrical tube body, 102-center channel, 103-outer ring channel. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0026] This embodiment is a porous pipe for refrigerator condenser and evaporator, such as Figure 1 、 Figure 2 As shown, it includes a cylindrical tube body 101, and 7 parallel refrigerant channels are provided at the core of the cylindrical tube body 101. The 7 refrigerant channels include 1 central channel 102 and 6 outer ring channels 103, wherein the central channel 102 is located at the center of the tube body, and the outer ring channels 103 surround the central channel and are evenly (equally) distributed.

[0027] This embodiment is specially designed for tubes used in refrigerator condensers and evaporators, wherein the spacing between the central channel 102 and the outer ring channel 103 and the distance between the outer channel and the outer wall of the tube are both 0.5 mm.

[0028] Example 1 of setting the refrigerant channel in the core of the cylindrical tube 101: The diameter of the central channel 102 is equal to the diameter of the outer ring channel 103, such as Figure 2 shown.

[0029] Example 2 of setting the refrigerant channel in the core of the cylindrical tube 101: The diameter of the central channel 102 is larger than the diameter of the outer ring channel 103, such as Figure 3 As shown, Figure 5 shown.

[0030] Example 3 of setting the refrigerant channel in the core of the cylindrical tube 101: The diameter of the central channel 102 is smaller than the diameter of the outer ring channel 103, such as Figure 4 shown.

[0031] Example 4 of setting the refrigerant channel in the core of the cylindrical tube 101: The outer ring channel 103 is provided with a single ring or multiple rings, such as Figure 5 、 Figure 6 shown.

[0032] Working principle and application:

[0033] Since the central channel 102 and the outer ring channel 103 form a high-strength composite hole structure, the connecting ribs between these composite holes act like inner hole fins, but their strength is much greater than that of conventional fins. The connected ribs form an ideal internal support for the tube body, thereby greatly improving the compressive strength of the circular tube.

[0034] The porous tube not only increases the heat exchange area and improves the heat exchange efficiency, but also ensures that the fluid in each channel is always the same, so that the fluid in all channels is evenly distributed. At the same time, it can reduce vibration and noise, avoid fluid dead zones and turbulence, and reduce energy loss. Since the temperature uniformity in the tube is improved, local supercooling is reduced, making it more stable when subjected to external pressure.

[0035] The above embodiments are intended to illustrate the present invention, not to limit it. Although the present invention is described in conjunction with preferred embodiments, it should be understood that the present invention is not limited to the preferred embodiments. Those skilled in the art may make various equivalent modifications and substitutions to the technical solutions of the present invention based on the teachings of the present invention. Therefore, the scope of the present invention should be defined by the claims, and all such equivalent modifications and substitutions fall within the scope of protection of the technical solutions of the present invention.

Claims

1. A porous pipe for refrigerator condenser and evaporator, comprising a cylindrical pipe body (101), characterized in that The core of the cylindrical tube body is provided with a plurality of parallel arranged refrigerant channels, the plurality of refrigerant channels including a central channel (102) and an outer ring channel (103), the central channel being located at the center of the tube body, and the outer ring channels surrounding the central channel and being evenly distributed.

2. A porous pipe for refrigerator condenser and evaporator according to claim 1, characterized in that: The spacing between the central hole (102) and the outer ring hole (103), and the distance between the peripheral hole and the outer wall of the tube are both greater than or equal to 0.5 mm.

3. A porous pipe for a refrigerator condenser and evaporator according to claim 1 or 2, characterized in that: The diameter of the central hole (102) is equal to the diameter of the outer ring hole (103).

4. A porous pipe for a refrigerator condenser and evaporator according to claim 1 or 2, characterized in that: The diameter of the central hole (102) is greater than the diameter of the outer ring hole (103).

5. A porous pipe for a refrigerator condenser and evaporator according to claim 1 or 2, characterized in that: The diameter of the central hole (102) is smaller than the diameter of the outer ring hole (103).

6. A porous pipe for a refrigerator condenser and evaporator according to claim 1 or 2, characterized in that: The outer ring channel (103) is provided with a single ring or multiple rings.

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