Refrigerating system and refrigerator
By attaching a capillary tube to the outer wall of the drain pipe for heat exchange, and using a high-temperature refrigerant to heat the drain pipe, the problem of ice blockage in the drain pipe is solved, thus improving the efficiency and performance of the refrigeration system.
Patent Information
- Application Number
- CN202422695372.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Ice can easily form inside the refrigerator's drain pipe, causing blockage and affecting its cooling performance.
By attaching a capillary tube to the outer wall of the drain pipe and exchanging heat with the drain pipe, the high-temperature refrigerant inside the capillary tube heats the drain pipe and prevents it from freezing.
It effectively solves the ice blockage problem inside the drain pipe and improves the efficiency and performance of the refrigeration system.
Smart Images
Figure CN223484551U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of refrigeration technology, and in particular relates to a refrigeration system and a refrigerator. Background Technology
[0002] Refrigerators have an evaporator. Over time, frost will build up on the evaporator's surface, affecting air circulation and cold air transfer. Therefore, a defrost heater is needed to heat the evaporator and melt the frost. The defrost water is then drained through the drain pipe. Because the temperature around the drain pipe is usually low, ice can easily form inside the drain pipe, causing ice blockage and affecting the refrigerator's cooling performance. Utility Model Content
[0003] This application provides a refrigeration system and a refrigerator to solve the problem of ice blockage caused by ice forming inside the drain pipe of existing refrigerators.
[0004] In a first aspect, embodiments of this application provide a refrigeration system, which includes a compressor, a condenser, a capillary tube, an evaporator, and a drain pipe. The refrigerant outlet of the compressor is connected to the refrigerant inlet of the condenser, the refrigerant outlet of the condenser is connected to one end of the capillary tube, the other end of the capillary tube is connected to the refrigerant inlet of the evaporator, and the refrigerant outlet of the evaporator is connected to the refrigerant inlet of the compressor. The drain pipe is used to collect defrost water from the evaporator, and the capillary tube is attached to the outer wall of the drain pipe for heat exchange.
[0005] Optionally, the capillary tube includes a first section, a heat exchange section, and a second section connected in sequence. The heat exchange section is attached to the outer wall of the drain pipe to exchange heat with the drain pipe. The end of the first section away from the heat exchange section is connected to the refrigerant outlet of the condenser, and the end of the second section away from the heat exchange section is connected to the refrigerant inlet of the evaporator.
[0006] Optionally, the heat exchange section is wound around the outer wall of the drain pipe and extends along the length of the drain pipe; or, the heat exchange section extends in a straight line along the length of the drain pipe.
[0007] Optionally, the outer wall of the drain pipe is provided with a limiting groove, and the heat exchange section is embedded in the limiting groove.
[0008] Optionally, the outer wall of the drain pipe is provided with two limiting protrusions, which are spaced apart along the length of the drain pipe, and the heat exchange section is disposed between the two limiting protrusions.
[0009] Optionally, the refrigerant outlet of the evaporator is connected to the refrigerant inlet of the compressor via a return pipe, and the return pipe is in contact with the second section for heat exchange.
[0010] Optionally, the refrigeration system further includes a water collection tray located below the evaporator; the bottom of the water collection tray is provided with a water outlet, and one end of the drain pipe is connected to the water outlet.
[0011] Optionally, the refrigeration system further includes a water collection tank, with the other end of the drain pipe located above the water collection tank, or the other end of the drain pipe extending into the water collection tank.
[0012] Optionally, the refrigerant outlet of the compressor is connected to the refrigerant inlet of the condenser via a connecting pipe, and the connecting pipe is at least partially located inside the water collection tank.
[0013] Secondly, embodiments of this application also provide a refrigerator, which includes the aforementioned refrigeration system.
[0014] The refrigeration system and refrigerator provided in this application connect the refrigerant outlet of the condenser to one end of a capillary tube, and the other end of the capillary tube to the refrigerant inlet of the evaporator. The capillary tube is then attached to the outer wall of the drain pipe to exchange heat with the drain pipe. During the refrigeration process, the temperature of the refrigerant inside the capillary tube is much higher than the temperature of the drain pipe. Thus, the capillary tube can transfer heat to the drain pipe, heating the drain pipe and effectively solving the problem of ice blockage caused by ice formation inside the drain pipe. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. Those skilled in the art can obtain other drawings based on these drawings without creative effort. In the following description, the same reference numerals denote the same parts.
[0016] Figure 1 This is a schematic diagram of the structure of a refrigeration system provided in an embodiment of this application.
[0017] Figure 2 for Figure 1 The diagram shows an enlarged view of part A of the refrigeration system.
[0018] Figure 3 for Figure 1 The diagram shows an enlarged view of part B of the refrigeration system.
[0019] Explanation of icon numbers:
[0020] 100. Compressor; 200. Condenser; 300. Capillary tube; 310. First stage; 320. Heat exchange section; 330. Second stage; 400. Evaporator; 500. Drain pipe; 600. Return gas pipe; 700. Water tray; 800. Water collection tank; 900. Connecting pipe. Detailed Implementation
[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0022] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0023] In this application, the term "exemplary" is used to mean "used as an example, illustration, or illustration." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments.
[0024] This application provides a refrigeration system, such as... Figures 1-3As shown, the refrigeration system includes a compressor 100, a condenser 200, a capillary tube 300, an evaporator 400, and a drain pipe 500. Each of the compressor 100, condenser 200, and evaporator 400 has a refrigerant inlet and a refrigerant outlet. The refrigerant outlet of the compressor 100 is connected to the refrigerant inlet of the condenser 200, the refrigerant outlet of the condenser 200 is connected to one end of the capillary tube 300, the other end of the capillary tube 300 is connected to the refrigerant inlet of the evaporator 400, and the refrigerant outlet of the evaporator 400 is connected to the refrigerant inlet of the compressor 100. The drain pipe 500 is used to collect defrost water from the evaporator 400, and the capillary tube 300 is attached to the outer wall of the drain pipe 500 for heat exchange.
[0025] The refrigeration system provided in this embodiment connects the refrigerant outlet of the condenser 200 to one end of the capillary tube 300, and the other end of the capillary tube 300 to the refrigerant inlet of the evaporator 400. The capillary tube 300 is also attached to the outer wall of the drain pipe 500 for heat exchange. During the refrigeration process, the refrigerant temperature inside the capillary tube 300 is much higher than the temperature of the drain pipe 500. Therefore, the capillary tube 300 can transfer heat to the drain pipe 500, effectively heating it and solving the problem of ice blockage caused by icing inside the drain pipe 500. Simultaneously, the heat exchange between the capillary tube 300 and the drain pipe 500 also lowers the refrigerant temperature inside the capillary tube 300, helping to increase the subcooling of the refrigerant. This results in a greater cooling capacity when the refrigerant in the capillary tube 300 enters the evaporator 400 for evaporation, thus improving system efficiency.
[0026] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, the capillary tube 300 includes a first section 310, a heat exchange section 320, and a second section 330 connected in sequence. The heat exchange section 320 is attached to the outer wall of the drain pipe 500 for heat exchange with the drain pipe 500. The end of the first section 310 away from the heat exchange section 320 is connected to the refrigerant outlet of the condenser 200, and the end of the second section 330 away from the heat exchange section 320 is connected to the refrigerant inlet of the evaporator 400. That is, one end of the first section 310 is connected to the refrigerant outlet of the condenser 200, the other end of the first section 310 is connected to one end of the heat exchange section 320, the other end of the heat exchange section 320 is connected to one end of the second section 330, and the other end of the second section 330 is connected to the refrigerant inlet of the evaporator 400. By dividing the capillary tube 300 into the first section 310, the heat exchange section 320, and the second section 330, this application facilitates the connection of the capillary tube 300 with the condenser 200 and the evaporator 400 while achieving heat exchange with the drain pipe 500.
[0027] Optionally, the heat exchange section 320 is attached to the outer wall of the drain pipe 500 by: the heat exchange section 320 is wound around the outer wall of the drain pipe 500 and extends along the length of the drain pipe 500, that is, the heat exchange section 320 is wound around the outer wall of the drain pipe 500 and is in direct contact with the outer wall of the drain pipe 500, such as... Figure 2 and Figure 3 As shown. By winding the heat exchange section 320 onto the outer wall of the drain pipe 500, the contact area between the capillary tube 300 and the drain pipe 500 can be increased, which helps to solve the problem of ice blockage caused by ice formation inside the drain pipe 500.
[0028] Alternatively, the heat exchange section 320 may be attached to the outer wall of the drain pipe 500 in such a way that the heat exchange section 320 extends linearly along the length of the drain pipe 500. That is, the heat exchange section 320 is arranged parallel to the drain pipe 500, and the outer wall of the heat exchange section 320 is attached to the outer wall of the drain pipe 500.
[0029] This application attaches the heat exchange section 320 of the capillary tube 300 to the outer wall of the drain pipe 500. During the refrigeration process, the compressor 100 discharges high-temperature, high-pressure refrigerant. The refrigerant enters the condenser 200 and dissipates heat through the condenser 200, gradually cooling to room temperature (approximately 30°C) and high-pressure saturated vapor, and further cooling to saturated liquid. The temperature no longer decreases, and then it enters the capillary tube 300. Through the capillary tube 300, the refrigerant is throttled and depressurized, becoming a room temperature (approximately 30°C) and low-pressure state. The refrigerant in the heat exchange section 320 exchanges heat with the drain pipe 500, thereby transferring heat to the drain pipe 500 and effectively solving the ice blockage problem of the drain pipe 500.
[0030] Optionally, the outer wall of the drain pipe 500 is provided with a limiting groove, and the heat exchange section 320 is embedded in the limiting groove. By setting the limiting groove, the heat exchange section 320 can be limited to the drain pipe 500, preventing the heat exchange section 320 from shifting, thereby ensuring the heat exchange effect.
[0031] Alternatively, the outer wall of the drain pipe 500 may have two limiting protrusions, spaced apart along the length of the drain pipe 500, with the heat exchange section 320 positioned between them. By providing these limiting protrusions, the capillary tube 300 can also be confined to the drain pipe 500, preventing displacement and ensuring effective heat exchange. Specifically, the two end faces of the heat exchange section 320 abut against the two limiting protrusions. For example, if both the heat exchange section 320 and the drain pipe 500 are placed vertically, the upper and lower end faces of the heat exchange section 320 abut against the two limiting protrusions.
[0032] Optionally, the refrigerant outlet of the evaporator 400 and the refrigerant inlet of the compressor 100 are connected via a return pipe 600. The return pipe 600 is in contact with the second section 330 for heat exchange (i.e., the second section 330 of the capillary tube 300 is in contact with the outer wall of the return pipe 600 for heat exchange). It can be understood that the refrigerant is throttled and depressurized through the capillary tube 300 to a normal temperature (approximately 30°C) and low pressure state. The refrigerant exiting the evaporator 400 and entering the return pipe 600 is in a low temperature and low pressure state. By contacting the return pipe 600 with the second section 330 of the capillary tube for heat exchange, the temperature of the refrigerant in the capillary tube 300 is reduced, which helps increase the subcooling of the refrigerant in the capillary tube 300. Therefore, when the refrigerant in the capillary tube 300 enters the evaporator 400 for evaporation, it will have a greater cooling capacity, contributing to improved system efficiency.
[0033] In some embodiments of this application, such as Figure 2 As shown, the refrigeration system also includes a drip tray 700, which is located below the evaporator 400 to collect the defrost water from the evaporator 400. The drip tray 700 has a drain outlet at its bottom, and one end of the drain pipe 500 is connected to the drain outlet. It is understandable that, since the evaporator 400 has a certain width, while the diameter of the drain pipe 500 is much smaller than the width of the evaporator 400, the drip tray 700 can more effectively collect the defrost water from the evaporator 400, and then the defrost water in the drip tray 700 is discharged through the drain pipe 500.
[0034] Optionally, the refrigeration system also includes a water collection tank 800, with the other end of the drain pipe 500 located above the water collection tank 800, or the other end of the drain pipe 500 extending into the water collection tank 800, so that defrost water in the drip tray 700 can be drained into the water collection tank 800 through the drain pipe 500. By setting up the water collection tank 800, the defrost water from the evaporator 400 can be collected for other uses, making effective use of the defrost water.
[0035] Optionally, the refrigerant outlet of the compressor 100 and the refrigerant inlet of the condenser 200 are connected by a connecting pipe 900, which is at least partially located within the water collection tank 800. By placing at least part of the connecting pipe 900 within the water collection tank 800, heat exchange can be achieved between the defrosting water in the water collection tank 800 and the refrigerant in the connecting pipe 900. This heats the defrosting water, making it easier for the water in the water collection tank 800 to evaporate, and also removes some of the heat from the refrigerant in the connecting pipe 900 (i.e., cools the refrigerant in the connecting pipe 900), which is beneficial for the condensation of the refrigerant after it enters the condenser 200.
[0036] The refrigeration system provided in this application embodiment can be applied to refrigerators, air conditioners, and other equipment requiring refrigeration. The working process of the refrigeration system includes: compression, condensation, throttling, and evaporation. Taking the refrigeration system applied to a refrigerator as an example, specifically, the compression process is as follows: When the refrigerator has a refrigeration demand, the compressor 100 starts working. Low-temperature, low-pressure refrigerant from the evaporator 400 is drawn into the compressor 100 and compressed into high-temperature, high-pressure superheated gas in the cylinder of the compressor 100 before being discharged into the condenser 200. Specifically, it enters the condensing pipe of the condenser 200 through the connecting pipe 900. The condensation process is as follows: The high-temperature, high-pressure refrigerant gas dissipates heat through the condenser 200, and the temperature continuously decreases, gradually being cooled to room temperature (approximately 30°C), high-pressure saturated vapor, and further cooled into saturated liquid. The temperature no longer decreases, and the refrigerant completes the condensation process. The pressure remains almost constant throughout the process. The throttling process is as follows: the saturated liquid refrigerant after condensation flows into the capillary tube 300, where it is throttled and its pressure reduced, resulting in the refrigerant reaching a normal temperature and low pressure state. The evaporation process is as follows: the normal temperature and low pressure refrigerant enters the evaporator 400, where it begins to absorb heat and vaporize, lowering the temperature of the evaporator 400 and its surroundings, thus achieving cooling in the refrigeration chamber and turning the refrigerant into a low-temperature, low-pressure gas. The refrigerant exiting the evaporator 400 returns to the compressor 100, repeating the above process. Through the change in the state of the refrigerant, energy is converted, transferring heat from inside the refrigerator to the air outside, thereby achieving the refrigerator's refrigeration cycle.
[0037] This application also provides a refrigerator, which includes a refrigeration system, the specific structure of which is described in the above embodiments. Since this refrigerator employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.
[0038] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0039] The refrigeration system and refrigerator provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A refrigeration system, characterized in that, The system includes a compressor (100), a condenser (200), a capillary tube (300), an evaporator (400), and a drain pipe (500). The refrigerant outlet of the compressor (100) is connected to the refrigerant inlet of the condenser (200). The refrigerant outlet of the condenser (200) is connected to one end of the capillary tube (300), and the other end of the capillary tube (300) is connected to the refrigerant inlet of the evaporator (400). The refrigerant outlet of the evaporator (400) is connected to the refrigerant inlet of the compressor (100). The drain pipe (500) is used to collect defrost water from the evaporator (400). The capillary tube (300) is attached to the outer wall of the drain pipe (500) for heat exchange.
2. The refrigeration system according to claim 1, characterized in that, The capillary tube (300) includes a first section (310), a heat exchange section (320), and a second section (330) connected in sequence. The heat exchange section (320) is attached to the outer wall of the drain pipe (500) to exchange heat with the drain pipe (500). The end of the first section (310) away from the heat exchange section (320) is connected to the refrigerant outlet of the condenser (200), and the end of the second section (330) away from the heat exchange section (320) is connected to the refrigerant inlet of the evaporator (400).
3. The refrigeration system according to claim 2, characterized in that, The heat exchange section (320) is wound around the outer wall of the drain pipe (500) and extends along the length of the drain pipe (500); Alternatively, the heat exchange section (320) extends linearly along the length of the drain pipe (500).
4. The refrigeration system according to claim 2 or 3, characterized in that, The outer wall of the drain pipe (500) is provided with a limiting groove, and the heat exchange section (320) is embedded in the limiting groove.
5. The refrigeration system according to claim 2 or 3, characterized in that, The outer wall of the drain pipe (500) is provided with two limiting protrusions, which are spaced apart along the length of the drain pipe (500), and the heat exchange section (320) is disposed between the two limiting protrusions.
6. The refrigeration system according to claim 2 or 3, characterized in that, The refrigerant outlet of the evaporator (400) is connected to the refrigerant inlet of the compressor (100) through a return pipe (600), and the return pipe (600) is in contact with the second section (330) for heat exchange.
7. The refrigeration system according to any one of claims 1 to 3, characterized in that, The refrigeration system also includes a water receiving tray (700) located below the evaporator (400); the bottom of the water receiving tray (700) is provided with a water outlet, and one end of the drain pipe (500) is connected to the water outlet.
8. The refrigeration system according to claim 7, characterized in that, The refrigeration system also includes a water collection tank (800), and the other end of the drain pipe (500) is located above the water collection tank (800), or the other end of the drain pipe (500) extends into the water collection tank (800).
9. The refrigeration system according to claim 8, characterized in that, The refrigerant outlet of the compressor (100) is connected to the refrigerant inlet of the condenser (200) via a connecting pipe (900), which is at least partially located inside the water collection tank (800).
10. A refrigerator, characterized in that, The refrigerator includes the refrigeration system according to any one of claims 1 to 9.