Refrigerating system and dehumidification equipment

Abstract

The refrigerating system comprises a condenser, a throttling device, an evaporator and a compressor, the condenser, the throttling device, the evaporator and the compressor are sequentially connected through a refrigerant pipeline to form a circulation loop, the refrigerant pipeline between the condenser and the throttling device is a first heat exchange pipeline, and the refrigerant pipeline between the condenser and the throttling device is a second heat exchange pipeline. The refrigerant pipeline between the evaporator and the compressor is a second heat exchange pipeline, and the second heat exchange pipeline is arranged adjacent to the first heat exchange pipeline. According to the refrigerating system, the liquid impact phenomenon caused by the fact that the liquid refrigerant enters the compressor can be avoided, the operation reliability of the compressor is improved, and the service life of the compressor is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a refrigeration system and a dehumidification equipment. BACKGROUND

[0002] The refrigeration system comprises a condenser, a throttling device, an evaporator and a compressor, and the condenser, the throttling device, the evaporator and the compressor are connected through pipelines to form a circulation loop. During refrigeration, the refrigerant first becomes a high-pressure gas through the compressor; then the high-pressure gas is condensed and releases heat to become a high-pressure liquid through the outdoor unit heat exchanger (condenser); then the high-pressure liquid becomes a low-temperature and low-pressure liquid through the throttling device; then the low-temperature and low-pressure liquid is evaporated and absorbs heat to become a low-temperature and low-pressure gas through the indoor unit heat exchanger (evaporator), and finally returns to the compressor.

[0003] If the temperature of the low-pressure gas evaporated and absorbed heat by the evaporator is relatively low, the low-pressure gas may carry the liquid refrigerant that is not completely evaporated into the compressor. The liquid refrigerant may cause a "liquid knock" phenomenon when being compressed in the compressor, which may impact the internal parts of the compressor and even damage the compressor, thereby reducing the service life of the compressor. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a refrigeration system to solve the technical problem that the compressor in the existing refrigeration system is prone to "liquid knock" phenomenon, thereby reducing the service life of the compressor.

[0005] In a first aspect, the present application provides a refrigeration system, comprising a condenser, a throttling device, an evaporator and a compressor, wherein the condenser, the throttling device, the evaporator and the compressor are connected in sequence through refrigerant pipelines to form a circulation loop, the refrigerant pipeline between the condenser and the throttling device is a first heat exchange pipeline, the refrigerant pipeline between the evaporator and the compressor is a second heat exchange pipeline, and the second heat exchange pipeline is arranged adjacent to the first heat exchange pipeline.

[0006] In some embodiments, the second heat exchange pipeline is in abutment with the first heat exchange pipeline.

[0007] In some embodiments, the first heat exchange pipeline comprises a plurality of first heat exchange branch pipes and at least one first connecting branch pipe, two adjacent first heat exchange branch pipes are arranged at intervals and connected through the first connecting branch pipe, and two first heat exchange branch pipes at the ends are connected with the condenser and the throttling device respectively.

[0008] The second heat exchange pipeline comprises a plurality of second heat exchange branch pipes and at least one second connecting branch pipe, two adjacent second heat exchange branch pipes are arranged at intervals and connected through the second connecting branch pipe, and two second heat exchange branch pipes at the ends are connected with the evaporator and the compressor respectively.

[0009] Each of the second heat exchange branch pipes abuts against the first heat exchange branch pipe.

[0010] In some embodiments, the first heat exchange pipeline and the second heat exchange pipeline are both arranged in a U shape.

[0011] In some embodiments, the condenser and the evaporator are arranged in sequence along the width direction of the evaporator.

[0012] In some embodiments, the first heat exchange pipeline and the second heat exchange pipeline are arranged between the condenser and the evaporator.

[0013] In some embodiments, the first heat exchange pipeline abuts against the condenser, and the second heat exchange pipeline abuts against the evaporator.

[0014] In some embodiments, the condenser and the evaporator form a heat exchange assembly side by side, and the throttling device is located at the end of the heat exchange assembly.

[0015] In some embodiments, the throttling device includes a drying filter and a capillary tube, and the condenser, the first heat exchange pipeline, the drying filter, the capillary tube, and the evaporator are connected in sequence.

[0016] In a second aspect, the present application provides a dehumidification device, comprising:

[0017] a mounting frame; and

[0018] The refrigeration system according to any one of the above is arranged in the mounting frame.

[0019] Compared with the prior art, the above technical solutions provided by the embodiments of the present application have the following advantages:

[0020] The refrigeration system provided by the embodiments of the present application has the following advantages: the second heat exchange pipeline (between the evaporator and the compressor) is arranged adjacent to the first heat exchange pipeline (between the condenser and the throttling device), so that heat exchange can be performed between the two. Moreover, the refrigerant in the first heat exchange pipeline is high-temperature and high-pressure liquid, and the refrigerant in the second heat exchange pipeline is low-temperature and low-pressure gas, and there is a significant temperature difference between the two. Therefore, by arranging adjacent to each other, the high-temperature refrigerant in the first heat exchange pipeline can transfer heat to the low-temperature refrigerant in the second heat exchange pipeline, thereby increasing the temperature of the refrigerant in the second heat exchange pipeline and increasing the temperature of the refrigerant entering the compressor, ensuring that the refrigerant entering the compressor is completely evaporated gas, avoiding the phenomenon of liquid strike caused by liquid refrigerant entering the compressor, and further improving the operation reliability and service life of the compressor. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application.

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the accompanying drawings required to be used in the embodiments or prior art description will be briefly introduced below. Obviously, for those skilled in the field, under the premise of no creative labor, other drawings can also be obtained according to these drawings.

[0023] One or more embodiments are illustrated by way of example in the drawings that are not intended to be limiting of the application, and the same or similar reference numerals designate similar elements throughout the several views of the drawings, and wherein:

[0024] Figure 1 An assembly schematic diagram of a refrigeration system provided for an embodiment of the present application;

[0025] Figure 2 An assembly schematic diagram of a refrigeration system and a compressor provided for an embodiment of the present application;

[0026] Figure 3 An exploded schematic diagram of a refrigeration system provided for an embodiment of the present application;

[0027] Figure 4 A schematic diagram of abutment of a first heat exchange pipeline and a second heat exchange pipeline provided for an embodiment of the present application;

[0028] Figure 5 Another angle schematic diagram of abutment of a first heat exchange pipeline and a second heat exchange pipeline provided for an embodiment of the present application;

[0029] Figure 6 A structural schematic diagram of a throttling device provided for an embodiment of the present application.

[0030] Explanation of reference numerals:

[0031] Refrigeration system 10, condenser 100, throttling device 200, drying filter 210, capillary tube 220, evaporator 300, compressor 400, refrigerant pipeline 500, first heat exchange pipeline 510, first heat exchange branch pipe 511, first connection branch pipe 512, second heat exchange pipeline 520, second heat exchange branch pipe 521, second connection branch pipe 522. DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0033] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and settings of particular examples in the following description are shown in great detail. Of course, they are merely examples and are presented to illustrate the present application. The purpose is not to limit the present application. In addition, reference numerals and / or letters can be repeated in different examples in the present application. Such repetition is for the purpose of simplicity and clarity, and does not indicate a relationship between the various embodiments and / or settings discussed.

[0034] For the purpose of description, spatial relative terms can be used in the description to describe the relative position relationship or movement of one element or feature with respect to another element or feature as shown in the drawings, such as "inner", "outer", "inboard", "outboard", "under", "below", "over", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" another element or feature will be oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both the up and down positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the description are interpreted accordingly.

[0035] The refrigeration system comprises a condenser, a throttling device, an evaporator, a compressor, and a circulation loop formed by connecting the condenser, the throttling device, the evaporator, and the compressor through pipelines. During refrigeration, the refrigerant first passes through the compressor to become a high-pressure gas; then the high-pressure gas passes through the outdoor unit heat exchanger (condenser) to condense and release heat to become a high-pressure liquid; then the high-pressure liquid passes through the throttling device to become a low-temperature and low-pressure liquid; then the low-temperature and low-pressure liquid passes through the indoor unit heat exchanger (evaporator) to evaporate and absorb heat to become a low-temperature and low-pressure gas, and finally returns to the compressor.

[0036] If the temperature of the low-pressure gas generated by the evaporator is relatively low, the low-pressure gas can carry the liquid refrigerant that has not been completely evaporated into the compressor. The liquid refrigerant can cause "liquid strike" when compressed in the compressor, which can impact the internal parts of the compressor and even damage the compressor, thereby reducing the service life of the compressor.

[0037] To solve the technical problem that the compressor is prone to "liquid strike" in the existing refrigeration system, thereby reducing the service life of the compressor, the application provides a refrigeration system, which can avoid the liquid strike caused by the liquid refrigerant entering the compressor, thereby improving the operation reliability and service life of the compressor.

[0038] Referring to Figures 1-6 The refrigeration system 10 provided by the application comprises a condenser 100, a throttling device 200, an evaporator 300, and a compressor 400.

[0039] The condenser 100, the throttling device 200, the evaporator 300, and the compressor 400 are connected in sequence by a refrigerant pipeline 500 to form a circulation loop. The refrigerant pipeline 500 between the condenser 100 and the throttling device 200 is a first heat exchange pipeline 510, the refrigerant pipeline 500 between the evaporator 300 and the compressor 400 is a second heat exchange pipeline 520, and the second heat exchange pipeline 520 is arranged adjacent to the first heat exchange pipeline 510.

[0040] In this embodiment, the second heat exchange pipeline 520 (between the evaporator 300 and the compressor 400) is arranged adjacent to the first heat exchange pipeline 510 (between the condenser 100 and the throttling device 200), so that heat exchange can be performed between the two. In addition, the refrigerant in the first heat exchange pipeline 510 is a high-temperature and high-pressure liquid, and the refrigerant in the second heat exchange pipeline 520 is a low-temperature and low-pressure gas, and there is a significant temperature difference between the two. Therefore, by arranging adjacent to each other, the high-temperature refrigerant in the first heat exchange pipeline 510 can transfer heat to the low-temperature refrigerant in the second heat exchange pipeline 520, thereby increasing the temperature of the refrigerant in the second heat exchange pipeline 520 and increasing the temperature of the refrigerant entering the compressor 400. It is ensured that the refrigerant entering the compressor 400 is completely evaporated gas, avoiding the liquid strike phenomenon caused by the liquid refrigerant entering the compressor 400, thereby improving the operation reliability and service life of the compressor 400.

[0041] In addition, the heat in the refrigerant circulation can be fully utilized, the energy loss of the system is reduced, the overall energy efficiency is improved, and the refrigerant temperature regulation can be realized without additional heating devices or other complex components.

[0042] In some embodiments, the second heat exchange pipeline 520 is in abutment with the first heat exchange pipeline 510.

[0043] Thus, by the abutment design, the heat in the first heat exchange pipeline 510 can be fully utilized to increase the temperature of the refrigerant in the second heat exchange pipeline 520, reducing unnecessary energy waste, thereby improving the heat transfer effect between the second heat exchange pipeline 520 and the first heat exchange pipeline 510.

[0044] In addition, the abutment design enables the first heat exchange pipeline 510 and the second heat exchange pipeline 520 to be more closely combined together, reducing the overall occupied space of the refrigeration system 10, and making the structure of the refrigeration system 10 more compact.

[0045] In some embodiments, the first heat exchange pipeline 510 includes a plurality of first heat exchange branch pipes 511 and at least one first connecting branch pipe 512, and two adjacent first heat exchange branch pipes 511 are arranged at intervals and connected by the first connecting branch pipe 512. The two first heat exchange branch pipes 511 at the ends are respectively connected with the condenser 100 and the throttling device 200.

[0046] For example, there can be two first heat exchange branch pipes 511 and one first connecting branch pipe 512, so that the first heat exchange pipeline 510 is arranged in a U shape; or there can be three first heat exchange branch pipes 511 and two first connecting branch pipes 512, so that the first heat exchange pipeline 510 is arranged in a mountain shape, etc.

[0047] The second heat exchange pipeline 520 includes a plurality of second heat exchange branch pipes 521 and at least one second connecting branch pipe 522, and two adjacent second heat exchange branch pipes 521 are arranged at intervals and connected by the second connecting branch pipe 522. The two second heat exchange branch pipes 521 at the ends are respectively connected with the evaporator 300 and the compressor 400.

[0048] Similarly, for example, there can be two second heat exchange branch pipes 521 and one second connecting branch pipe 522, so that the second heat exchange pipeline 520 is arranged in a U shape; or there can be three second heat exchange branch pipes 521 and two second connecting branch pipes 522, so that the second heat exchange pipeline 520 is arranged in a mountain shape, etc.

[0049] Each of the second heat exchange branch pipes 521 abuts against the first heat exchange branch pipe 511.

[0050] In some embodiments, the first heat exchange pipeline 510 and the second heat exchange pipeline 520 are both arranged in a U shape.

[0051] In some embodiments, the condenser 100 and the evaporator 300 are arranged in sequence along the width direction of the evaporator 300.

[0052] In this way, the condenser 100 and the evaporator 300 are arranged in sequence along the width direction of the evaporator 300, so that the structure of the refrigeration system 10 is more compact, and the overall space occupied by the refrigeration system 10 is reduced.

[0053] In some embodiments, the first heat exchange pipeline 510 and the second heat exchange pipeline 520 are arranged between the condenser 100 and the evaporator 300.

[0054] In this way, the first heat exchange pipeline 510 and the second heat exchange pipeline 520 are arranged between the condenser 100 and the evaporator 300, so that the structure of the refrigeration system 10 is more compact, and the overall space occupied by the refrigeration system 10 is reduced.

[0055] In some embodiments, the first heat exchange pipeline 510 abuts against the condenser 100, and the second heat exchange pipeline 520 abuts against the evaporator 300.

[0056] In some embodiments, the condenser 100 and the evaporator 300 form a heat exchange assembly side by side, and the throttling device 200 is located at the end of the heat exchange assembly.

[0057] By locating the throttling device 200 at the end of the heat exchange assembly, i.e., at the same side of the condenser 100 and the evaporator 300, the circulation path of the refrigerant pipeline 500 can be reduced, thereby reducing the energy loss of the refrigeration system 10.

[0058] In some embodiments, the throttling device 200 includes a drying filter 210 and a capillary tube 220, and the condenser 100, the first heat exchange pipeline 510, the drying filter 210, the capillary tube 220, and the evaporator 300 are connected in sequence.

[0059] The capillary tube 220 can be an expansion valve, which is used to expand the high-pressure liquid sent by the condenser 100 to obtain low-pressure liquid.

[0060] The drying filter 210 can dry and filter the high-pressure liquid sent by the condenser 100 to obtain pure low-pressure liquid.

[0061] Based on the above-mentioned embodiments of the refrigeration system 10, the application further provides a dehumidification device, which includes a mounting frame and the refrigeration system 10 of any of the above-mentioned embodiments, and the refrigeration system 10 is arranged in the mounting frame.

[0062] Thus, the evaporator 300 and the condenser 100 of the dehumidification device are arranged side by side, and the side edges are fixed by end plates. The evaporator 300 and the compressor 400 are connected in sequence by the refrigerant pipeline 500 to form a circulation loop. The refrigerant pipeline 500 between the condenser 100 and the throttling device 200 is the first heat exchange pipeline 510. The refrigerant pipeline 500 between the evaporator 300 and the compressor 400 is the second heat exchange pipeline 520. The second heat exchange pipeline 520 is arranged adjacent to the first heat exchange pipeline 510, that is, the U-shaped refrigerant pipeline 500 is connected at the liquid outlet end of the evaporator 300 and the gas return end of the condenser 100. The refrigerant liquid in the condenser 100 passes through the U-shaped refrigerant pipeline 500, then passes through the drying filter 210 and the capillary tube 220, and finally flows to the evaporator 300 for evaporation. The evaporated refrigerant gas is heated in the refrigerant pipeline 500 and then flows back to the compressor 400.

[0063] Since the refrigerant pipeline 500 is formed by welding two pieces of purple copper pipe (i.e., the first heat exchange pipeline 510 and the second heat exchange pipeline 520) side by side, the heat exchange between the refrigerant liquid in the condenser 100 and the refrigerant gas in the evaporator 300 in the U-shaped refrigerant pipeline 500 is more sufficient. That is, the first heat exchange pipeline 510 transfers heat to the second heat exchange pipeline 520. In this way, the temperature of the high-pressure liquid in the first heat exchange pipeline 510 is reduced, which can ensure that the refrigerant liquid before entering the evaporator 300 is in a supercooled state, so that the refrigerant is completely evaporated, the evaporation temperature is lower, and the dehumidification amount is larger.

[0064] The temperature of the low-pressure gas in the second heat exchange pipeline 520 is increased, so that the refrigerant gas entering the compressor 400 is in a superheated state, which can prevent the liquid knock phenomenon of the compressor 400.

[0065] In the above embodiments, the description of each embodiment focuses on different aspects. The parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0066] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0067] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or a number of the technical features indicated. Thus, the features defined with "first", "second", etc. can include one or more of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0068] In the present application, unless otherwise explicitly and specifically defined, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be connected, or detachable, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] In the present application, unless otherwise explicitly and specifically defined, the first feature "on" or "under" the second feature can include the first and second features in direct contact, or the first and second features not in direct contact but in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0070] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0071] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, these modifications and variations of the present application are intended to be included within the scope of the claims of the present application and their equivalents. The present application is intended to include these modifications and variations.

[0072] The above is merely specific embodiments of the present application, and the protection scope of the present application is not limited thereto, and any modification or replacement within the technical scope disclosed by the present application can be easily thought by those skilled in the art, and these modifications or replacements shall be encompassed in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A refrigeration system characterized by, The refrigeration system comprises a condenser, a throttling device, an evaporator and a compressor, which are sequentially connected by refrigerant pipelines to form a circulation loop, the refrigerant pipeline between the condenser and the throttling device is a first heat exchange pipeline, the refrigerant pipeline between the evaporator and the compressor is a second heat exchange pipeline, and the second heat exchange pipeline is arranged adjacent to the first heat exchange pipeline.

2. The refrigeration system of claim 1, wherein, The second heat exchange pipeline abuts against the first heat exchange pipeline.

3. The refrigeration system of claim 2, wherein, The first heat exchange pipeline comprises a plurality of first heat exchange branch pipelines and at least one first connecting branch pipeline, two adjacent first heat exchange branch pipelines are arranged at intervals and connected by the first connecting branch pipeline, and two first heat exchange branch pipelines at the ends are respectively connected with the condenser and the throttling device. The second heat exchange pipeline comprises a plurality of second heat exchange branch pipelines and at least one second connecting branch pipeline, two adjacent second heat exchange branch pipelines are arranged at intervals and connected by the second connecting branch pipeline, and two second heat exchange branch pipelines at the ends are respectively connected with the evaporator and the compressor. Each second heat exchange branch pipeline abuts against the first heat exchange branch pipeline.

4. The refrigeration system of claim 2, wherein, The first heat exchange pipeline and the second heat exchange pipeline are both arranged in a U shape.

5. The refrigeration system of any of claims 1 to 4, wherein, The condenser and the evaporator are sequentially and spacedly arranged along the width direction of the evaporator.

6. The refrigeration system of claim 5, wherein, The first heat exchange pipeline and the second heat exchange pipeline are arranged between the condenser and the evaporator.

7. The refrigeration system of claim 6, wherein, The first heat exchange pipeline abuts against the condenser, and the second heat exchange pipeline abuts against the evaporator.

8. The refrigeration system of any of claims 1 to 4, wherein, The condenser and the evaporator form a heat exchange assembly side by side, and the throttling device is located at the end of the heat exchange assembly.

9. The refrigeration system of claim 8, wherein, The throttling device comprises a drying filter and a capillary tube, and the condenser, the first heat exchange pipeline, the drying filter, the capillary tube and the evaporator are sequentially connected.

10. A dehumidification apparatus, characterized by, The refrigeration system comprises: a mounting frame; and the refrigeration system according to any one of claims 1 to 9 is arranged in the mounting frame. ​

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