Throttling heat regeneration device and refrigeration equipment
By embedding throttling short pipes in the first pipe of the refrigeration equipment and connecting some pipes directly in parallel, the problem of parallel arrangement of capillaries and return pipes in traditional refrigeration equipment increases cost and reduces efficiency, achieving more efficient throttling and heat recovery, improving cooling speed and refrigeration efficiency.
Patent Information
- Application Number
- CN202510575237.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2025-06-13
AI Technical Summary
In traditional refrigeration equipment, the parallel arrangement of capillaries and return air pipes increases production costs and reduces refrigeration efficiency, resulting in slow cooling speed.
A throttling and heat recovery device is designed, and by embedding a throttling short pipe in the first pipe and connecting part of the first pipe and the second pipe in parallel to form a heat recovery section to achieve more efficient throttling and heat recovery.
The cooling efficiency of the throttling heating device is significantly improved, the cooling speed of the refrigeration equipment is improved, and the production cost is reduced.
Smart Images
Figure CN120141000A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of manufacturing refrigeration equipment, and more particularly, to a throttling and regenerative device and a refrigeration equipment. Background Art
[0002] In the refrigeration system of traditional refrigeration equipment (such as refrigerators), a capillary tube is often used as a throttling component. It converts the high-temperature refrigerant liquid discharged from the condenser of the refrigeration equipment into a low-temperature and low-pressure vapor-liquid mixture, which then absorbs heat through the evaporator and becomes a low-temperature and low-pressure refrigerant gas. Finally, it flows back to the compressor through the return pipe, thereby realizing the refrigeration of the refrigeration equipment. Among them, the capillary tube and the return pipe are arranged in parallel, and the parallel length of the capillary tube and the return pipe is very long to increase the heat recovery amount. However, this method not only greatly increases the manufacturing cost but also reduces the refrigeration efficiency of the refrigeration system, thereby resulting in a slow cooling speed of the refrigeration equipment. Summary of the Invention
[0003] To overcome the technical problems mentioned in the above technical background, an embodiment of the present application provides a throttling and regenerative device, which includes a condensation component, a compression component, an evaporation component, and a throttling and regenerative component;
[0004] The evaporation component includes an evaporator, which includes an evaporator inlet and an evaporator outlet. The throttling and regenerative component includes a first pipe, a second pipe, and a throttling short pipe. The first pipe includes a first interface and a second interface, the second pipe includes a third interface and a fourth interface. The first interface is connected to the condensation component, the second interface is connected to the evaporator inlet, the third interface is connected to the evaporator outlet, and the compression component on the same side as the condensation component is connected to the fourth interface. The condensation component, the first pipe, the evaporation component, the second pipe, and the compression component form a loop;
[0005] In the loop formed by the condensation component, the first pipe, the evaporation component, the second pipe, and the compression component, a part of the first pipe and the second pipe are connected in parallel to form a heat recovery section of the throttling and regenerative device. The throttling short pipe is arranged in the first pipe corresponding to the non-heat recovery section and is close to the evaporator inlet. The throttling short pipe fits with the inner wall of the first pipe.
[0006] In a possible implementation manner, the extending direction of the throttling short pipe is the same as the extending direction of the first pipe at the position of the throttling short pipe;
[0007] The throttling short tube includes a through hole that penetrates the throttling short tube in the extending direction of the throttling short tube. The through hole includes a constant section with an unchanged inner diameter of the through hole and a divergent section with an inner diameter of the through hole gradually increasing along the extending direction of the throttling short tube. The through hole corresponding to the divergent section is close to the evaporator inlet;
[0008] In the extending direction of the throttling short tube, the length of the through hole corresponding to the constant section is a first length, and the length of the through hole corresponding to the divergent section is a second length. The first length is greater than the second length. The range of the first length is 35 mm to 45 mm, and the range of the second length is 20 mm to 30 mm.
[0009] In a possible implementation manner, the throttling short tube further includes a recessed portion that is recessed from the outer wall of the throttling short tube towards the center of the through hole;
[0010] The number of the recessed portions is multiple, and the multiple recessed portions are arranged on the throttling short tube at equal intervals. The range of the number of the recessed portions is 3 to 6.
[0011] In a possible implementation manner, the throttling short tube further includes a filter screen, and the filter screen is arranged in the through hole corresponding to the constant section and on the side far from the through hole corresponding to the divergent section.
[0012] In a possible implementation manner, one end edge of the through hole corresponding to the constant section, which is far from the through hole corresponding to the divergent section, has a chamfer;
[0013] The range of the angle of the chamfer is 30 degrees to 45 degrees.
[0014] In a possible implementation manner, the throttling and regenerating device further includes a damping block. The damping block is arranged at the position where the first pipe is provided with the throttling short tube and is arranged around the outer wall of the first pipe. The damping block is used to wrap the first pipe at the throttling short tube;
[0015] The material of the damping block includes rubber.
[0016] In a possible implementation manner, in the extending direction of the throttling short tube, the length of the throttling short tube is a third length. The range of the third length is 60 mm to 100 mm.
[0017] In a possible implementation manner, at the regenerating section of the throttling and regenerating device, one side of the first pipe close to the second pipe is connected to one side of the second pipe close to the first pipe by welding;
[0018] The throttling and regenerative device further includes a wrapping material, and the wrapping material is wrapped around the outer walls of the first pipe and the second pipe corresponding to the regenerative section;
[0019] The material of the wrapping material includes aluminum.
[0020] In a possible implementation manner, the materials of the first pipe and the second pipe include aluminum;
[0021] The material of the throttling short pipe includes stainless steel or copper.
[0022] Another object of the present application is to provide a refrigeration device, and the refrigeration device includes a plurality of throttling and regenerative devices provided by the present application.
[0023] Based on any of the above aspects, a throttling and regenerative device and a refrigeration device provided by an embodiment of the present application. The throttling and regenerative device includes a condensation component, a compression component, an evaporation component, and a throttling and regenerative component. The evaporation component includes an evaporator, and the evaporator includes an evaporator inlet and an evaporator outlet. The throttling and regenerative component includes a first pipe, a second pipe, and a throttling short pipe. The first pipe includes a first interface and a second interface, the second pipe includes a third interface and a fourth interface, the first interface is connected to the condensation component, the second interface is connected to the evaporator inlet, the third interface is connected to the evaporator outlet, and the compression component on the same side as the condensation component is connected to the fourth interface. The condensation component, the first pipe, the evaporation component, the second pipe, and the compression component form a loop. In the loop formed by the condensation component, the first pipe, the evaporation component, the second pipe, and the compression component, a part of the first pipe and the second pipe are connected in parallel together to form the regenerative section of the throttling and regenerative device. The throttling short pipe is arranged in the first pipe corresponding to the non-regenerative section and is close to the evaporator inlet, and the throttling short pipe fits with the inner wall of the first pipe. In this way, the above throttling and regenerative device significantly improves the refrigeration efficiency of the throttling and regenerative device through the design of embedding the throttling short pipe in the first pipe, and further improves the cooling speed of the refrigeration device (such as a refrigerator). In addition, the above throttling and regenerative device directly connects a part of the first pipe and the second pipe in parallel together to form the regenerative section, which significantly reduces the manufacturing cost. Description of the Drawings
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be referred to in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0025] Figure 1 It is a schematic diagram of a throttling and regenerative device provided for this embodiment;
[0026] Figure 2 The sectional view taken along the Figure 1 indicated A-A cutting line for this embodiment;
[0027] Figure 3 The sectional view taken along the Figure 1 indicated B-B cutting line for this embodiment;
[0028] Figure 4 The schematic diagram of the throttle short pipe provided for this embodiment;
[0029] Figure 5 The sectional view taken along the Figure 4 indicated C-C cutting line for this embodiment.
[0030] Icon: 1 - Throttle regeneration device, 10 - Condensation component, 20 - Compression component, 30 - Evaporation component, 40 - Throttle regeneration component, 41 - First pipeline, 410 - First interface, 411 - Second interface, 42 - Second pipeline, 420 - Third interface, 421 - Fourth interface, 43 - Throttle short pipe, 430 - Through hole, 431 - Depression, 432 - Filter screen, 433 - Chamfer, 44 - Damping block, 45 - Wrapping material. Detailed implementation manners
[0031] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. Generally, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.
[0033] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0034] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the products of this application are usually placed during use. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0035] It should be noted that, without conflict, different features in the embodiments of the present application can be combined with each other.
[0036] To solve the technical problems mentioned in the foregoing background art, the inventor has innovatively designed the following technical solutions. The specific implementation solutions of the present application will be described in detail below with reference to the drawings.
[0037] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic diagram of a throttling and regenerative device 1 provided in this embodiment. Figure 2 This is a schematic cross-sectional view taken along the Figure 1 indicated A-A cutting line in this embodiment. The throttling and regenerative device 1 includes a condensation component 10, a compression component 20, an evaporation component 30, and a throttling and regenerative component 40. The evaporation component 30 includes an evaporator (not shown in the figure), and the evaporator includes an evaporator inlet and an evaporator outlet. The throttling and regenerative component 40 includes a first pipe 41, a second pipe 42, and a throttling short pipe 43. The first pipe 41 includes a first interface 410 and a second interface 411. The second pipe 42 includes a third interface 420 and a fourth interface 421. The first interface 410 is connected to the condensation component 10. The second interface 411 is connected to the evaporator inlet. The third interface 420 is connected to the evaporator outlet. The compression component 20 on the same side as the condensation component 10 is connected to the fourth interface 421. The condensation component 10, the first pipe 41, the evaporation component 30, the second pipe 42, and the compression component 20 form a loop. In this way, the refrigerant liquid discharged from the condensation component 10 is converted into a refrigerant gas-liquid mixture through the first pipe 41 provided with the throttling short pipe 43, and then becomes a refrigerant gas after absorbing heat and refrigerating through the evaporation component 30, and then flows back to the compression component 20 through the second pipe 42 to achieve the refrigeration effect.
[0038] It is worth noting that the temperature of the refrigerant liquid in the first pipe 41 is higher than that of the refrigerant gas in the second pipe 42, and the refrigerant liquid in the first pipe 41 is converted into a refrigerant gas-liquid mixture with a temperature and pressure lower than that of the refrigerant liquid through the throttling short pipe 43.
[0039] In a loop formed by the condensation assembly 10, the first pipeline 41, the evaporation assembly 30, the second pipeline 42, and the compression assembly 20, a part of the first pipeline 41 and the second pipeline 42 are connected in parallel to form a regenerative section A1 of the throttling and regenerative device 1. A throttling short pipe 43 is arranged in the first pipeline 41 corresponding to the non-regenerative section and is close to the evaporator inlet, and the throttling short pipe 43 is attached to the inner wall of the first pipeline 41.
[0040] Wherein, at the regenerative section A1, the refrigerant liquid in the first pipeline 41 exchanges heat with the refrigerant gas at the second pipeline 42, which can effectively increase the suction superheat degree of the compression assembly 20. The suction superheat degree is the difference between the temperature of the refrigerant gas when it enters the compression assembly 20 and its saturation temperature under the evaporation pressure. Increasing the suction superheat degree can protect the compression assembly 20 and improve the refrigeration efficiency of the throttling and regenerative device 1. Moreover, the greater the regenerative heat amount between the first pipeline 41 and the second pipeline 42, the more heat the refrigerant gas can obtain before entering the compression assembly 20, so the energy consumed in the compression process is reduced, and the coefficient of performance (COP) of the throttling and regenerative device 1 is higher, thereby improving the refrigeration efficiency of the entire throttling and regenerative device 1. The coefficient of performance (COP) is an important index to measure the efficiency of the throttling and regenerative device 1. The higher the COP, the higher the refrigeration efficiency of the throttling and regenerative device 1 and the lower the energy consumption.
[0041] It should be noted that in the non-regenerative section, the first pipeline 41 and the second pipeline 42 are separately arranged.
[0042] In the related art, at the non-regenerative section, traditional refrigeration equipment (such as a refrigerator) uses a capillary tube as the throttling component. Since the capillary tube relies on a copper capillary tube with a long diameter ratio (L / D > 1000) to achieve pressure reduction, its processing difficulty is large, the manufacturing cost is high, and the capillary tube is easily blocked by impurities, resulting in refrigeration failure. Moreover, the flow regulation range of the capillary tube is small, the response speed to a large-load working condition system is slow, which easily causes the risk of lack of refrigerant liquid in the evaporation assembly 30, resulting in a slow cooling speed of the refrigeration equipment (such as a refrigerator). However, in this embodiment, by arranging a throttling short pipe 43 in the first pipeline 41 of the non-regenerative section to replace the capillary tube in the related art, a more efficient throttling effect is achieved based on the sudden contraction - sudden expansion effect of the throttling short pipe 43, and it can respond in a timely manner when the load of the refrigeration equipment (such as a refrigerator) changes, and can more quickly stabilize the flow rate of the refrigerant liquid entering the evaporation assembly 30, significantly improving the refrigeration efficiency of the throttling and regenerative device 1.
[0043] In addition, at the regenerative section A1, traditional refrigeration equipment (such as a refrigerator) uses a capillary tube and a suction pipe for heat exchange. However, the temperature difference between the inlet and outlet of the refrigerant liquid flowing through the capillary tube is large, resulting in a relatively low average temperature of the refrigerant liquid during regeneration. The heat transfer temperature difference with the refrigerant gas in the suction pipe is small, which limits the amount of regenerated heat. Currently, in the market, to increase the amount of regenerated heat, the capillary tube and the suction pipe are usually arranged in parallel, and the parallel length is set very long. In addition, since the materials of the capillary tube and the suction pipe cannot be in direct contact, an anti-corrosion and heat-insulating layer needs to be added during the heat exchange between the capillary tube and the suction pipe. This method not only reduces the heat transfer efficiency but also increases the manufacturing cost and the complexity of the process. However, at the regenerative section A1, in this embodiment, part of the first pipe 41 and the second pipe 42 are directly connected in parallel. Compared with the parallel design of the capillary tube and the suction pipe in the prior art, the length of the regenerative section A1 is reduced, the heat transfer efficiency between the first pipe 41 and the second pipe 42 is ensured, the amount of regenerated heat is increased, and the manufacturing cost is reduced.
[0044] Further, please refer to Figure 3 , Figure 3 which is a schematic cross-sectional view taken along the Figure 1 B-B cutting line shown in this embodiment. The extending direction of the throttle short tube 43 in this embodiment is the same as the extending direction of the first pipe 41 at the throttle short tube 43.
[0045] The throttle short tube 43 includes a through hole 430 that penetrates the throttle short tube 43 in the extending direction of the throttle short tube 43. The through hole 430 includes a constant section B1 with a constant inner diameter of the through hole 430 and a divergent section B2 with an inner diameter of the through hole 430 gradually increasing along the extending direction of the throttle short tube 43. The through hole 430 corresponding to the divergent section B2 is close to the evaporator inlet. In this embodiment, when the refrigerant liquid flows from the condensing assembly 10 through the first interface 410 into the first pipe 41 and reaches the throttle short tube 43, it sequentially flows through the through hole 430 corresponding to the constant section B1 of the throttle short tube 43 and the through hole 430 corresponding to the divergent section B2. During this process, the throttle short tube 43 cools down and reduces the pressure of the refrigerant liquid, and finally it is transformed into a refrigerant gas-liquid mixture, and flows into the evaporator from the evaporator inlet through the second interface 411, absorbs energy in the evaporator, and is transformed into a refrigerant gas. Among them, the inner diameter of the through hole 430 corresponding to the divergent section B2 gradually increases. When the refrigerant gas-liquid mixture flows out of the throttle short tube 43, this gradually increasing inner diameter of the through hole 430 can help reduce the flow rate of the refrigerant gas-liquid mixture, reduce the flow resistance of the refrigerant gas-liquid mixture, and thus reduce the noise.
[0046] In the extending direction of the throttle short pipe 43, the length of the through hole 430 corresponding to the constant section B1 is the first length H1, and the length of the through hole 430 corresponding to the expansion section B2 is the second length H2. The first length H1 is greater than the second length H2. The range of the first length H1 is 35 mm to 45 mm. Exemplarily, the first length H1 can be 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, 45 mm, etc.
[0047] The range of the second length H2 is 20 mm to 30 mm. Exemplarily, the second length H2 can be 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, etc.
[0048] It should be noted that the specific lengths of the first length H1 and the second length H2 can be selected based on the actual situation within the above ranges, and no specific limitation is made here.
[0049] Furthermore, please refer to Figure 4 and Figure 5 , Figure 4 which is a schematic diagram of the throttle short pipe 43 provided in this embodiment, Figure 5 and Figure 3 which is a schematic cross-sectional view taken along the C-C cutting line shown in this embodiment. The throttle short pipe 43 further includes a recessed portion 431 that is recessed from the outer wall of the throttle short pipe 43 towards the center of the through hole 430. In this embodiment, when installing the throttle short pipe 43, first place the throttle short pipe 43 in the first pipe 41, and then use a mold to squeeze the outer wall of the first pipe 41 to make it fit with the recessed portion 431, realizing the sealed connection between the throttle short pipe 43 and the first pipe 41, which can effectively prevent the leakage of the refrigerant in the first pipe 41 and ensure the efficient operation of the throttling and regenerative device 1.
[0050] The number of the recessed portions 431 in this embodiment is multiple, and the multiple recessed portions 431 are arranged on the throttle short pipe 43 at equal intervals. The range of the number of the recessed portions 431 is 3 to 6. Exemplarily, the number of the recessed portions 431 can be 3, 4, 5, 6, etc. Figure 3 illustrates the case where the number of the recessed portions 431 of the throttle short pipe 43 is 3.
[0051] Furthermore, please refer to Figure 4 and Figure 5 again. The throttle short pipe 43 further includes a filter screen 432, and the filter screen 432 is arranged in the through hole 430 corresponding to the constant section B1 and on the side far from the through hole 430 corresponding to the expansion section B2.
[0052] In the related art, when the refrigeration system of a traditional refrigeration device (such as a refrigerator) adopts the design of a capillary tube, since the inner diameter of the capillary tube is very small and the length is very long, when impurities or moisture enter the capillary tube, it is easy to block the passage of the capillary tube, thereby causing the refrigeration of the refrigeration system to fail. However, in this embodiment, the filter screen 432 is arranged at the position where the refrigerant liquid enters the throttle short tube 43, and can filter out the impurities that are likely to block the through hole 430 of the throttle short tube 43. Moreover, the throttle short tube 43 in this embodiment has a short length and a fast flow rate, so impurities are not easily accumulated in the throttle short tube 43, which can reduce the risk of blockage of the through hole 430 of the throttle short tube 43 and ensure the stability of the throttle heat recovery device 1.
[0053] Furthermore, please refer to Figure 4 , one end edge of the through hole 430 corresponding to the constant section B1 of this embodiment, which is far from the through hole 430 corresponding to the expansion section B2, has a chamfer 433, that is, a chamfer 433 is arranged at one end where the refrigerant liquid enters the throttle short tube 43, which can reduce the flow resistance of the refrigerant liquid and help guide the refrigerant liquid to smoothly enter the through hole 430.
[0054] The angle range of the chamfer 433 is 30 degrees to 45 degrees. Exemplarily, the angle of the chamfer 433 can be 30 degrees, 35 degrees, 40 degrees, 45 degrees, etc. Figure 5 The case where the angle of the chamfer 433 is 45 degrees is illustrated.
[0055] It should be noted that the specific angle of the chamfer 433 can be selected based on the actual situation within the above range, and no specific limitation is made here.
[0056] Furthermore, please refer to Figure 3 , the throttle heat recovery device 1 of this embodiment further includes a damping block 44. The damping block 44 is arranged at the position where the throttle short tube 43 is provided on the first pipe 41 and is arranged around the outer wall of the first pipe 41. The damping block 44 is used to wrap the first pipe 41 at the position of the throttle short tube 43. In this way, the design of the damping block 44 can further reduce the flow noise of the refrigerant liquid in the throttle short tube 43.
[0057] The material of the damping block 44 includes but is not limited to rubber. As a common damping material, rubber has good elasticity, wear resistance and corrosion resistance. It can effectively absorb the vibration and noise at the first pipe 41, and at the same time can provide a certain degree of mechanical protection to prevent the first pipe 41 from being impacted externally during operation.
[0058] Furthermore, please refer to Figure 3 again. In the extending direction of the throttle short tube 43, the length of the throttle short tube 43 is the third length H3, and the range of the third length H3 is 60 millimeters to 100 millimeters.
[0059] In the related art, traditional refrigeration equipment (such as a refrigerator) adopts a capillary tube design. The length of the capillary tube is generally more than 2 meters, and strict requirements are imposed on the inner diameter error, resulting in a relatively high manufacturing cost. However, the length of the throttle short tube 43 adopted in this embodiment is much smaller than the length of the capillary tube in the prior art, significantly reducing the manufacturing cost. Moreover, in this embodiment, the sudden contraction - sudden expansion effect of the throttle short tube 43 is utilized to achieve a more efficient throttling effect, and it can respond in a timely manner when the load of the refrigeration equipment (such as a refrigerator) changes, stabilize the refrigerant flow more rapidly, significantly improve the refrigeration efficiency of the throttle heat regeneration device 1, and further increase the cooling speed of the refrigeration equipment (such as a refrigerator). During the operation of the refrigeration equipment (such as a refrigerator), the load change refers to the fluctuation of the refrigeration demand that the throttle heat regeneration device 1 needs to handle.
[0060] Further, please refer to Figure 2 , at the heat regeneration section A1 of the throttle heat regeneration device 1, one side of the first pipe 41 close to the second pipe 42 is connected to one side of the second pipe 42 close to the first pipe 41 by welding.
[0061] In the related art, in order to increase the heat regeneration amount, the capillary tube and the suction pipe are usually arranged in parallel, and the parallel length is set to be very long. In addition, since the materials of the capillary tube and the suction pipe cannot be in direct contact, an anti-corrosion and heat insulation layer needs to be added when the capillary tube and the suction pipe exchange heat. This method not only reduces the heat transfer efficiency, but also increases the manufacturing cost and the complexity of the process. However, in this embodiment, the throttle short tube 43 is embedded in the first pipe 41, so the first pipe 41 and the second pipe 42 can adopt the same material. Therefore, the first pipe 41 and the second pipe 42 at the heat regeneration section A1 can be directly connected in parallel together, and there is no need to add an additional anti-corrosion and heat insulation layer, improving the heat transfer efficiency and the heat regeneration amount, reducing the length of the heat regeneration section A1, and thus reducing the manufacturing cost.
[0062] The throttle heat regeneration device 1 further includes a wrapping material 45, and the wrapping material 45 is wrapped around the outer walls of the first pipe 41 and the second pipe 42 corresponding to the heat regeneration section A1. In this way, this method can further increase the heat exchange efficiency between the refrigerant liquid in the first pipe 41 and the refrigerant gas in the second pipe 42 at the heat regeneration section A1, increase the heat regeneration amount, and further improve the refrigeration efficiency of the throttle heat regeneration device 1.
[0063] The material of the wrapping material 44 includes but is not limited to aluminum. For example, the wrapping material 44 can adopt aluminum foil or a heat shrinkable tube. Aluminum foil has good thermal conductivity and corrosion resistance, can effectively promote heat exchange, and at the same time protect the first pipe 41 and the second pipe 42 from the influence of the external environment. The heat shrinkable tube tightly fits on the outer walls of the first pipe 41 and the second pipe 42 through heating and shrinking.
[0064] Furthermore, the materials of the first pipe 41 and the second pipe 42 in this embodiment include aluminum. In the related art, the material of the capillary tube is copper, and the material of the suction pipe is aluminum. However, they cannot be in direct contact. Therefore, an anti-corrosion and heat-insulating layer needs to be added when the capillary tube and the suction pipe exchange heat, which not only reduces the heat transfer efficiency but also increases the manufacturing cost and the complexity of the process. However, in this embodiment, the throttle short tube 43 is embedded in the first pipe 41, and the first pipe 41 and the second pipe 42 can be made of aluminum pipes, and the two can be directly welded together in parallel, reducing the length of the regenerative section A1 and lowering the manufacturing cost.
[0065] The material of the throttle short tube 43 can be stainless steel or copper.
[0066] Based on the same inventive concept, another object of the present application is to provide a refrigeration device, which includes the aforementioned throttle and regenerative device 1. In the throttle and regenerative device 1 of this embodiment, the method of arranging the throttle short tube 43 in the first pipe 41 corresponding to the non-regenerative section can achieve a more efficient throttling effect according to the sudden contraction - sudden expansion effect of the throttle short tube 43, and can respond in a timely manner when the refrigeration device (such as a refrigerator) undergoes a load change, and can quickly stabilize the flow rate of the refrigerant liquid flowing into the evaporation assembly 30. The method of directly connecting some of the first pipe 41 and the second pipe 42 in parallel in the regenerative section A1 reduces the length of the regenerative section A1 and lowers the manufacturing cost. Therefore, the throttle and regenerative device 1 of this embodiment can significantly improve the cooling speed of the refrigeration device, thereby improving the product quality of the refrigeration device and enhancing its market competitiveness.
[0067] In summary, a throttling and regenerative device and a refrigeration device provided by the present application, the throttling and regenerative device includes a condensation component, a compression component, an evaporation component and a throttling and regenerative component. The evaporation component includes an evaporator, and the evaporator includes an evaporator inlet and an evaporator outlet. The throttling and regenerative component includes a first pipeline, a second pipeline and a throttling short pipe. The first pipeline includes a first interface and a second interface, the second pipeline includes a third interface and a fourth interface. The first interface is connected to the condensation component, the second interface is connected to the evaporator inlet, the third interface is connected to the evaporator outlet, and the compression component on the same side as the condensation component is connected to the fourth interface. The condensation component, the first pipeline, the evaporation component, the second pipeline and the compression component form a loop. In the loop formed by the condensation component, the first pipeline, the evaporation component, the second pipeline and the compression component, a part of the first pipeline and the second pipeline are connected in parallel to form a regenerative section of the throttling and regenerative device. The throttling short pipe is arranged in the first pipeline corresponding to the non-regenerative section and is close to the evaporator inlet, and the throttling short pipe fits the inner wall of the first pipeline. Thus, the above throttling and regenerative device significantly improves the refrigeration efficiency of the throttling and regenerative device through the design of embedding the throttling short pipe in the first pipeline, and further improves the cooling speed of the refrigeration device (such as a refrigerator). In addition, the above throttling and regenerative device directly connects a part of the first pipeline and the second pipeline in parallel to form a regenerative section, which significantly reduces the manufacturing cost.
[0068] The foregoing is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. A throttling heat regeneration device, characterized in that: The throttling heat recovery device includes a condensing component, a compression component, an evaporation component and a throttling heat recovery component; The evaporation component includes an evaporator, the evaporator includes an evaporator inlet and an evaporator outlet, the throttling heat recovery component includes a first pipeline, a second pipeline and a throttling short pipe, the first pipeline includes a first interface and a second interface, the second pipeline includes a third interface and a fourth interface, the first interface is connected to the condensation component, the second interface is connected to the evaporator inlet, the third interface is connected to the evaporator outlet, the compression component located on the same side as the condensation component is connected to the fourth interface, and the condensation component, the first pipeline, the evaporation component, the second pipeline and the compression component form a loop; In the loop formed by the condensing component, the first pipe, the evaporating component, the second pipe and the compression component, part of the first pipe and the second pipe are connected in parallel to form the heat recovery section of the throttling heat recovery device, and the throttling short tube is arranged in the first pipe corresponding to the non-heat recovery section and is arranged close to the evaporator inlet, and the throttling short tube is in contact with the inner wall of the first pipe.
2. The throttling heat regeneration device according to claim 1, characterized in that: The extending direction of the throttling short tube is the same as the extending direction of the first pipeline at the throttling short tube; The throttling short tube includes a through hole penetrating the throttling short tube in the extending direction of the throttling short tube, the through hole includes a constant section with a constant inner diameter and an expansion section with an inner diameter gradually increasing along the extending direction of the throttling short tube, and the through hole corresponding to the expansion section is close to the evaporator inlet; In the extension direction of the throttling short tube, the length of the through hole corresponding to the constant section is a first length, and the length of the through hole corresponding to the expansion section is a second length. The first length is greater than the second length. The first length ranges from 35 mm to 45 mm, and the second length ranges from 20 mm to 30 mm.
3. The throttling heat regeneration device according to claim 2, characterized in that: The throttling short tube also includes a recessed portion recessed from the outer wall of the throttling short tube toward the center of the through hole; There are multiple recessed parts, which are arranged on the throttling short tube at equal intervals, and the number of the recessed parts ranges from 3 to 6.
4. The throttling heat regeneration device according to claim 3, characterized in that: The throttling short tube also includes a filter screen, which is arranged in the through hole corresponding to the constant section and away from one side of the through hole corresponding to the expansion section.
5. The throttling heat regeneration device according to claim 4, characterized in that: An edge of one end of the through hole corresponding to the constant section away from the through hole corresponding to the expansion section has a chamfer; The chamfer angle ranges from 30 degrees to 45 degrees.
6. The throttling heat regeneration device according to claim 4, characterized in that: The throttling heat recovery device further includes a damping block, which is arranged at the location where the throttling short pipe is arranged on the first pipeline and is arranged around the outer wall of the first pipeline, and the damping block is used to wrap the first pipeline at the location of the throttling short pipe; The material of the damping block includes rubber.
7. The throttling heat regeneration device according to claim 1, characterized in that: In the extending direction of the throttling short tube, the length of the throttling short tube is a third length, and the third length ranges from 60 mm to 100 mm.
8. The throttling heat regeneration device according to claim 1, characterized in that: At the regenerative section of the throttling regenerative device, a side of the first pipeline close to the second pipeline is connected to a side of the second pipeline close to the first pipeline by welding; The throttling heat recovery device further includes a wrapping material, wherein the wrapping material wraps the outer walls of the first pipe and the second pipe corresponding to the heat recovery section; The material made of the packaging material includes aluminum.
9. The throttling heat regeneration device according to claim 1, characterized in that: The first pipe and the second pipe are made of a material including aluminum; The throttling short tube is made of stainless steel or copper.
10. A refrigeration device, comprising the throttling heat regeneration device according to any one of claims 1 to 9.