CN217979362U - Evaporator, evaporator assembly, refrigerating system and refrigerating equipment - Google Patents

Abstract

The utility model relates to a refrigeration technology field provides an evaporimeter, evaporimeter subassembly, refrigerating system and refrigeration plant, and wherein, the evaporimeter includes: the heat exchange tube comprises an evaporation section and an air return section extending out of one end of the evaporation section, and the air return section is provided with a groove used for being connected with the capillary tube in parallel. The utility model provides an evaporator, a heat exchange tube shaping goes out evaporation zone and return air section, and evaporation zone and return air section are two parts in a pipe, need not to adopt welded connection, can simplify the processing of evaporator, promote production efficiency, can also avoid the inconsistent problem of machining precision that the welding leads to, reduce the intensity of labour of production process; still through the recess and the capillary face contact cooperation of return-air section, increase the heat transfer area of return-air section and capillary, promote heat exchange efficiency.

Description

Evaporator, evaporator assembly, refrigerating system and refrigerating equipment

Technical Field

The utility model relates to a refrigeration technology field especially relates to evaporimeter, evaporimeter subassembly, refrigerating system and refrigeration plant.

Background

The refrigerating system comprises a compressor, an evaporator, a condenser and a throttling device which are connected to form a circulation loop, wherein the throttling device can be a capillary tube. When the throttling device is a capillary tube, a return pipe between the evaporator and the compressor can exchange heat with the capillary tube so as to improve the heat efficiency.

In the related art, the evaporator and the air return pipe are independent parts, the evaporator and the air return pipe are connected in a welding mode in the production process, the processing mode of the evaporator and the air return pipe is complex, the production efficiency is not high, in addition, the problem of inconsistent processing precision can exist in the welding connection mode, the consistency of manual welding operation is poor, and the labor intensity of the welding process is high.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least one of the technical problems existing in the related art. Therefore, the utility model provides an evaporator, a heat exchange tube shaping goes out evaporation zone and return air section, and evaporation zone and return air section are two parts in a root canal, need not to adopt welded connection, can simplify the processing of evaporator, promote production efficiency, can also avoid the inconsistent problem of machining precision that the welding leads to, reduce the intensity of labour of production process.

The utility model also provides an evaporimeter subassembly.

The utility model discloses still provide a refrigerating system.

The utility model discloses still provide a refrigeration plant.

According to the utility model discloses evaporimeter of first aspect embodiment includes: the heat exchange tube comprises an evaporation section and an air return section extending out of one end of the evaporation section, and the air return section is provided with a groove for connecting the capillary tubes in parallel.

According to the utility model discloses evaporator, including the heat exchange tube, the heat exchange tube includes evaporation zone and return air section, and evaporation zone and return air section are through a heat exchange tube integrated into one piece, need not to connect through the welded mode again, can simplify the manufacturing procedure of evaporator, need not welding process between evaporation zone and the return air section, can improve production efficiency, can also avoid the machining precision inconsistent and the poor problem of manual operation uniformity that the welding brought, also can reduce the intensity of labour in the evaporimeter production process. Meanwhile, the air return section is provided with a groove, the groove is matched with the capillary tube, contact heat exchange between the capillary tube and the outer wall surface of the groove is achieved, the heat exchange area between the capillary tube and the air return section can be increased, and heat exchange efficiency and heat utilization rate are improved. In the foregoing, the evaporation section and the air return section can be formed by processing through an integrated online groove pressing forming device, and the processing is simpler and more convenient.

According to an embodiment of the invention, along the axis of the return air section, the groove extends along a straight line, and/or the groove extends along a spiral.

According to the utility model discloses an embodiment, the heat exchange tube is one of circular pipe, square pipe, D venturi tube, microchannel pipe and interior tooth pipe.

According to the utility model discloses an embodiment, the longitudinal section shape of recess is one of semi-circle, rectangle and semiellipse.

According to an embodiment of the invention, the air return section is configured with one or more of the grooves.

According to the utility model discloses evaporator assembly of second aspect embodiment, including the capillary and as above the evaporimeter, the capillary set up in the recess.

According to the utility model discloses evaporator assembly, including capillary and evaporimeter, the capillary is installed in the recess of the return-air section of evaporimeter, realizes the contact heat transfer of capillary and return-air section, and increase heat transfer area promotes heat exchange efficiency.

According to the utility model discloses an embodiment, the capillary with be provided with first anticorrosive coating between the return-air section.

According to the utility model discloses an embodiment, first anticorrosive coating is for being located the capillary with first aluminium foil between the recess, or, first anticorrosive coating does the capillary with heat-conducting glue layer between the recess.

According to an embodiment of the present invention, the outer surface of at least one of the air return section and the capillary tube is provided with a second anticorrosive layer;

and/or the capillary tube and the gas return section are both aluminum tubes.

According to an embodiment of the utility model, the capillary with the return-air section is fixed through coating parcel.

According to the third aspect of the present invention, a refrigeration system comprises a compressor, a condenser and an evaporator assembly as described above, which are connected to form a circulation loop.

According to the utility model discloses refrigerating system, through setting up foretell evaporator assembly, refrigerating system's assembly process can be simplified, refrigerating system's heat exchange efficiency has still been improved, helps refrigerating plant energy saving and consumption reduction.

According to the utility model discloses an embodiment, the condenser pipe of condenser is one of circular pipe, D venturi tube, rectangular pipe, interior tooth pipe and microchannel pipe.

According to the utility model discloses refrigeration plant of fourth aspect embodiment, including the equipment body, this body coupling of equipment has above refrigerating system.

According to the utility model discloses an embodiment, the equipment body includes the inner box, the evaporation zone twine in the outside of inner box.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a connection state between an evaporator and a compressor according to an embodiment of the present invention; wherein, the dotted line segment can be understood as a gas return segment, and the solid line segment is an evaporation segment;

fig. 2 is a schematic longitudinal sectional view of an air return section of an evaporator according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a connection state between an air return section and a capillary tube of an evaporator according to an embodiment of the present invention;

fig. 4 is a schematic longitudinal sectional view of an evaporator provided by an embodiment of the present invention, in which an evaporation section is a circular tube;

fig. 5 is a schematic longitudinal sectional view of an evaporator provided by an embodiment of the present invention, in which an evaporation section is a D-shaped pipe;

fig. 6 is a schematic longitudinal sectional view of an evaporator provided by an embodiment of the present invention, wherein an evaporation section of the evaporator is a square tube;

fig. 7 is a schematic longitudinal sectional view of an evaporator provided by an embodiment of the present invention, in which an evaporation section is a microchannel tube;

fig. 8 is a schematic longitudinal sectional view of an evaporator provided by an embodiment of the present invention, in which an evaporation section is an inner tooth tube;

fig. 9 is a schematic structural view of an anti-corrosion layer disposed between the air return section and the capillary tube of the evaporator according to the embodiment of the present invention;

fig. 10 is a schematic structural diagram of a refrigeration system provided by an embodiment of the present invention; the dashed line box in the figure indicates the air return heat exchange section of the air return section matched with the capillary tube, and the arrow in the figure indicates the flowing direction of the refrigerant;

fig. 11 is a schematic perspective view illustrating an installation state of an evaporator in a refrigeration device according to an embodiment of the present invention, in which the evaporator is a schematic view illustrating a connection state of a wound-tube evaporator and a capillary tube.

Reference numerals:

100. an evaporator; 110. an evaporation section; 120. a gas return section; 121. a groove;

200. a capillary tube; 300. a first anticorrosive layer; 400. a coating layer; 500. a compressor; 600. a condenser; 700. drying the filter; 800. an inner box.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, the terms "plurality", and "plural" mean two or more unless otherwise specified.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, references to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Embodiments of the first aspect of the present invention, as shown in fig. 1 to 8, provide an evaporator 100, including: the heat exchange tube comprises an evaporation section 110 and an air return section 120 extending out of one end of the evaporation section 110, and the air return section 120 is provided with a groove 121 for connecting the capillary tube 200 in parallel.

Referring to fig. 1, the same heat exchange tube includes an evaporation section 110 and a gas return section 120, that is, the evaporation section 110 and the gas return section 120 are formed by machining through a tube, and the evaporation section 110 and the gas return section 120 do not need to be connected by welding, and the evaporator 100 is in a solderless manner, so that the evaporator is more economical and has better quality and reliability. That is, a special air return pipe assembly is not required, welding spots on the evaporator 100 are reduced, the leakage rate is greatly reduced, the product rejection rate is reduced, the cost is low, the reliability is good, the whole process is operated without fire, and the operation is simple and safe.

Referring to fig. 2 and 3, the air return section 120 is configured with a groove 121, the capillary tube 200 can be installed in the groove 121, the groove 121 plays a role of wrapping the capillary tube 200, and the heat exchange area between the capillary tube 200 and the air return section 120 can be increased, so that the heat exchange effect between the air return section 120 and the capillary tube 200 is improved, the energy consumption is reduced, more energy is saved, and the effect of protecting the capillary tube 200 can be achieved. The grooves 121 of the air return section 120 can be formed by extrusion through equipment, and are easy to machine, and of course, the grooves 121 can also be formed by other methods, which are not listed here.

Wherein, the end of the heat exchange tube back to the air return section 120 is used for connecting the capillary tube 200, the capillary tube 200 is used for connecting the heat exchange tube and the condenser 600, and the air return section 120 is connected with the air inlet end of the compressor 500. Referring to fig. 10, the connection mode of the refrigeration system is as follows: the exhaust end of the compressor 500 is communicated with the inlet of the condenser 600, the outlet of the condenser 600 is communicated with the inlet of the capillary tube 200, the outlet of the capillary tube 200 is communicated with the inlet end of the heat exchange tube, the inlet end of the heat exchange tube is the inlet of the evaporation section, the outlet end of the heat exchange tube is the outlet of the air return section 120, and the outlet of the air return section 120 is communicated with the air inlet end of the compressor.

It will be appreciated that, with reference to fig. 1, the grooves 121 extend along a straight line along the axis of the air return section 120, that is, the extending direction of the grooves 121 is the same as the extending direction of the air return section 120, the grooves 121 are easy to machine, and the capillary tube 200 is easy to install.

It will also be appreciated that the grooves 121 extend in a spiral shape (not shown) along the axis of the air return section 120, i.e. the outer circumference of the air return section 120 is configured with spiral grooves 121 so that the capillary tube 200 can be wound spirally around the outer circumference of the air return section 120. Compared with the grooves 121 extending along a straight line, the air return section 120 with the same length has a longer path of the spirally extending grooves 121 and a longer length of the capillary tube 200 matched with the air return section 120, so that the contact area between the air return section 120 and the capillary tube 200 can be increased, and the heat exchange effect between the air return section 120 and the capillary tube 200 can be improved.

Of course, the air return section 120 may also be provided with both linearly extending grooves 121 and helically extending grooves 121, so that different sections of the same capillary tube 200 may be fitted with grooves 121 of different shapes, or different capillary tubes 200 may be fitted with grooves 121 in different ways.

It is understood that, as shown with reference to fig. 4 to 8, the heat exchange tube is one of a circular tube, a square tube, a D-shaped tube, a microchannel tube, and an internally toothed tube. The heat exchange tubes have various shapes, and the heat exchange tubes with different shapes can be selected according to the application scene of the refrigeration system. The shape of the heat exchange tube can be understood as the shape of the longitudinal section of the heat exchange tube, and the longitudinal section is a section perpendicular to the axial direction (the axial direction can be understood as the length direction of the heat exchange tube).

As shown in fig. 4 to 8, the positional relationship between the evaporation section 110 and the inner box 800 of the heat exchange tube is illustrated, wherein the inner box 800 can be made of aluminum plate, and wherein the shape of the heat exchange tube, that is, the shapes of the evaporation section 110 and the air return section 120 before the groove is processed, is formed with the groove 121 on the basis of the air return sections 120 of different shapes. As shown in fig. 4, the heat exchange pipe is a circular pipe, and one side of the circular pipe is attached to the outer surface of the inner tank 800. The heat exchange tube is a circular tube, and the groove 121 of the air return section 120 can be arranged at any position of the circular tube, and can be selected according to the requirement. As shown in fig. 5, the heat exchange tube is a D-shaped tube including a flat side and a curved side, and the flat side is attached to the outer surface of the inner case 800. The heat exchange tube is a D-shaped tube, and the groove 121 of the air return section 120 may be disposed at least one of the plane side and the curved surface side, and may be specifically selected according to the requirement. As shown in fig. 6, the heat exchange tube is a square tube, one side wall of the square tube is attached to the outer surface of the inner box 800, and the groove 121 of the air return section 120 may be formed in at least one side wall of the square tube. As shown in fig. 7, the heat exchange tube is a microchannel tube having a plurality of channels, one side outer sidewall of the microchannel tube is attached to the outer surface of the inner case 800, and the groove 121 of the air return section 120 may be provided on at least one sidewall of the microchannel tube. As shown in fig. 8, the heat exchange tube is an internally toothed tube, the inner wall of the internally toothed tube is provided with a plurality of inwardly protruding teeth, the longitudinal cross-sectional shape of the outer side wall of the internally toothed tube may be circular, rectangular or other shapes, and the position of the groove 121 of the air return section 120 on the outer side wall of the internally toothed tube may be selected as required, for example, referring to the arrangement manner of the grooves 121 of the circular tube and the rectangular tube.

It is understood that the longitudinal sectional shape of the groove 121 is one of a semicircular shape, a rectangular shape and a semi-elliptical shape, and the shape of the groove 121 needs to be matched with the longitudinal sectional shape of the capillary tube 200 to increase the heat exchange area between the air return section 120 and the capillary tube 200 through the groove 121. The design of the longitudinal section shape of the groove 121 ensures that the groove 121 is matched with the shape of the capillary tube 200, the processing is convenient as much as possible, and the structural strength and stability of the air return section 120 are ensured, so that the longitudinal section shape of the groove 121 can be adjusted according to the different shapes of the capillary tube 200.

Referring to fig. 2 and 3, the groove 121 has a semicircular longitudinal sectional shape, and is easy to process and structurally stable.

It will be appreciated that, with reference to fig. 2 and 3, the return air section 120 is configured with a groove 121, and the groove 121 is used to mount the capillary tube 200 therein, in which case the refrigeration system may be a single capillary tube 200 system or a multiple capillary tube 200 system. When the refrigeration system is a single capillary tube 200 system, the capillary tube 200 in the system can be matched with the air return section 120, and the heat exchange efficiency is improved. When the refrigeration system is a multi-capillary tube 200 system, one of the capillary tubes 200 can be selected to be matched with the air return section 120 for heat exchange, so that the heat exchange efficiency of the loop with the capillary tube 200 is improved.

Of course, the air return section 120 may also be configured with a plurality of grooves 121, and each groove 121 may be provided with one capillary tube 200, so as to be suitable for the refrigeration system of the multi-capillary tube 200, and improve the heat exchange efficiency of each loop in the refrigeration system of the multi-capillary tube 200.

When the air return section 120 is configured with a plurality of grooves 121, the plurality of grooves 121 may extend along a straight line or along a spiral shape along the axis of the air return section 120. The plurality of linearly extending grooves 121 may be parallel to each other, or a plurality of linearly extending grooves 121 may be intermittently provided in the axial direction of the air return section 120. When the plurality of grooves 121 each extend along a spiral shape, the plurality of grooves 121 may be parallel to each other, or the plurality of spiral grooves 121 may be intermittently arranged along the axial direction of the air return section 120.

When the heat exchange tube is a circular tube, the air return section 120 may be formed by extruding a groove 121 on the outer side of the circular tube, the groove 121 may be at least one of a semi-circular shape, a rectangular shape and a semi-elliptical shape, and the groove 121 may extend along a straight line or spirally. When the heat exchange tube is a D-shaped tube, the air return section 120 may form a groove 121 on at least one of a planar side and a curved side of the D-shaped tube, the groove 121 may be at least one of a semicircular shape, a rectangular shape, and a semi-elliptical shape, and the groove 121 may extend along a straight line or spirally. When the heat exchange tube is a rectangular tube, the air return section 120 may form a groove 121 on at least one side surface of the rectangular tube, the groove 121 may be at least one of a semicircular shape, a rectangular shape, and a semi-elliptical shape, and the groove 121 may extend along a straight line or spirally. When the heat exchange tube is a microchannel tube, the air return section 120 may form a groove 121 on at least one side surface of the microchannel tube, the groove 121 may be at least one of a semicircular shape, a rectangular shape, and a semi-elliptical shape, and the groove 121 may extend along a straight line or spirally. When the heat exchange tube is an inner toothed tube, the air return section 120 can be formed by extrusion of a groove 121 on the outer side of the inner toothed tube, the groove 121 can be at least one of a semicircular shape, a rectangular shape and a semi-elliptical shape, and the groove 121 can extend along a straight line or spirally.

It should be noted that the heat exchange tube is not limited to be installed in the inner box 800, the heat exchange tube can also be directly installed in the air duct, and the evaporation section 110 of the heat exchange tube can also be connected with fins to increase the heat exchange area and improve the heat exchange efficiency.

The heat exchange tube can be an aluminum tube or a copper tube, and can be selected according to requirements. The capillary tube 200 may be an aluminum or copper tube. The evaporator 100 may be a wound tube evaporator, a fin evaporator, or the like, and the specific configuration of the evaporator 100 is not limited.

In the evaporator 100 in the above embodiment, one heat exchange tube is provided with the evaporation section 110 and the air return section 120, so that a processing procedure of connecting the evaporator and the air return tube can be omitted, and the structural stability of the evaporator 100 is improved; the return air section 120 is provided with the groove 121, the problems that the return air section 120 is not high in point contact heat exchange efficiency with the capillary tube 200 and large in energy consumption are solved, the capillary tube 200 is wrapped by the groove 121, the capillary tube 200 is in surface contact with the return air section 120, the return air heat exchange area is increased, the return air heat exchange efficiency is enhanced, the heat exchange efficiency between the return air section 120 and the capillary tube 200 is improved, the refrigeration efficiency is improved, and the energy consumption of products is reduced.

The embodiment of the second aspect of the present invention, referring to fig. 1 to 9, provides an evaporator assembly, including capillary 200 and evaporator 100 in the above-mentioned embodiment, capillary 200 is installed in groove 121, so that the contact area between capillary 200 and evaporator 100 is increased, and the air-return heat exchange efficiency between capillary 200 and air-return section 120 is improved.

In the case that the heat exchange tube is an aluminum tube, that is, the air return section 120 is an aluminum tube, and the capillary tube 200 is a copper tube, a displacement reaction may occur between the capillary tube 200 and the air return section 120, so that there is a risk of leakage in the air return section 120. In order to solve the problem, the first anticorrosive coating 300 is disposed between the capillary tube 200 and the air return section 120, that is, the first anticorrosive coating 300 is added between the capillary tube 200 and the air return section 120, and the first anticorrosive coating 300 plays a role in isolating the capillary tube 200 from the air return section 120, so that the capillary tube 200 is prevented from being in direct contact with the air return section 120, and the capillary tube 200 and the air return section 120 do not need to be additionally provided with a processing procedure, so that the processing is simpler and more convenient.

In an embodiment of the first anti-corrosive layer 300, the first anti-corrosive layer 300 is a first aluminum foil located between the capillary tube 200 and the groove 121, that is, the first aluminum foil is laid in the groove 121, and then the capillary tube 200 is installed in the groove 121, so that the capillary tube 200 is separated from the outer wall surface of the groove 121 by the first aluminum foil, the capillary tube 200 is prevented from directly contacting the groove 121, and the first anti-corrosive layer is simple in structure and easy and convenient to produce and process.

In another embodiment of the first anti-corrosion layer 300, the first anti-corrosion layer 300 is a heat conductive adhesive layer between the capillary tube 200 and the groove 121, the heat conductive adhesive layer can play a role in connecting the capillary tube 200 and the air return section 120, and can also play a role in heat conduction, thereby preventing the influence on heat conduction efficiency caused by air filled between the outer wall surfaces of the capillary tube 200 and the groove 121, and also playing a role in isolating the capillary tube 200 and the air return section 120, and solving the problem that the air return section 120 is easily corroded.

The first corrosion protection layer 300 may also be other structures capable of performing heat conduction and separation.

Certainly, in order to solve the problem that a reaction may occur between the capillary tube 200 and the air return section 120, the capillary tube 200 and the air return section 120 may be made of the same material, for example, the capillary tube 200 and the air return section 120 are both aluminum tubes, or the capillary tube 200 and the air return section 120 are both copper tubes, so that no additional processing procedure is required, the processing is simpler and more convenient, and the structure is simpler.

It can be understood that a second anticorrosive layer is disposed on an outer surface of at least one of the air return section 120 and the capillary tube 200, and the second anticorrosive layer is a coating structure formed on the air return section 120 or the capillary tube 200, and has a simple structure. The second corrosion resistant layer may be a metal coating, a paint layer, or the like.

It can be understood that the capillary tube 200 and the air return section 120 are wrapped and fixed by the wrapping layer 400, and the capillary tube 200 and the air return section 120 are fixed by the wrapping layer 400, so that the structure is simple, and the processing is simple and convenient. The coating 400 may be wrapped manually or automatically by machine, and the wrapping of the coating 400 may be selected as desired. The coating layer 400 may be a second aluminum foil, which has a low cost and is easy to coat. The coating 400 may also be formed of other layers, such as copper foil, for example, to provide a coating function.

Of course, the fixing manner between the capillary tube 200 and the air return section 120 may also be adhesive fixing (such as the above-mentioned thermal conductive adhesive layer), welding fixing, and the like, and the fixing manner between the capillary tube 200 and the air return section 120 is various and can be selected as required.

Embodiments of the third aspect of the present invention, as shown in fig. 10 and 11, provide a refrigeration system, which includes a compressor 500, a condenser 600 and an evaporator assembly connected to form a circulation loop. The evaporator assembly has the above-mentioned advantages, and the refrigeration system has the above-mentioned advantages, which can be referred to above specifically, and are not described herein again.

Referring to fig. 10, the connection mode of the refrigeration system is as follows: the exhaust end of the compressor 500 is communicated with the inlet of the condenser 600, the outlet of the condenser 600 is communicated with the inlet of the capillary tube 200, the outlet of the capillary tube 200 is communicated with the inlet end of the heat exchange tube, the inlet end of the heat exchange tube is the end of the evaporation section 110 opposite to the air return section 120, the outlet end of the heat exchange tube is the outlet of the air return section 120, and the outlet of the air return section 120 is communicated with the air inlet end of the compressor.

In addition, a dry filter 700 is connected to the refrigerating system, and the dry filter 700 may be connected between the evaporator 100 and the condenser 600.

It is understood that the condensation pipe of the condenser 600 is one of a circular pipe, a D-shaped pipe, a rectangular pipe, an internally toothed pipe, and a microchannel pipe. The structural form of the condensation pipe is various and can be selected specifically according to the requirement.

The embodiment of the fourth aspect of the present invention, as shown in fig. 1 to 11, provides a refrigeration device, which includes a device body, and the device body is connected with the refrigeration system in the embodiment. The refrigeration system has the above-mentioned advantages, and the refrigeration device also has the above-mentioned advantages, which are not described herein again.

Wherein, the capillary tube 200 and the air return section 120 in the refrigeration system can be arranged in the foaming layer of the equipment body. The evaporator 100 is arranged in the air duct, the compressor 500 is arranged in the compressor bin, and the equipment body is simple in structure and simple and convenient to install.

Refrigeration plant can be for refrigerator, refrigerator-freezer, sell multiple such as cabinet, fresh-keeping cabinet, show cupboard, and refrigeration plant's structure is various, and evaporimeter 100's application scope is wide, and refrigeration plant's heat exchange efficiency and refrigeration effect are better, help energy saving and consumption reduction.

It can be understood that, as shown in fig. 11, the apparatus body includes an inner case 800, and the evaporation section 110 is wound around the outside of the inner case 800 so that the evaporation section 110 exchanges heat with the inner case 800 uniformly. When the refrigeration equipment is an ice chest, the evaporation section 110 can be wound on the inner box 800 of the ice chest, so that the evaporation section 110 can uniformly provide cold energy for the refrigeration chamber of the ice chest, and the refrigeration uniformity of the ice chest is improved. At this time, the evaporator 100 may be understood as a wound tube evaporator.

The refrigeration system comprises the evaporator 100, the evaporator 100 comprises the evaporation section 110 and the air return section 120 which are formed by the heat exchange tube, the grooves 121 of the air return section 120 are matched with the capillary tubes 200, air return heat exchange is realized, the structure is simple, the heat exchange effect is good, energy conservation and consumption reduction of refrigeration equipment are facilitated, and the refrigeration system can be applied to a refrigerator.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims (14)

1. An evaporator, comprising: the heat exchange tube comprises an evaporation section and an air return section extending out of one end of the evaporation section, and the air return section is provided with a groove used for being connected with the capillary tube in parallel.

2. An evaporator according to claim 1 wherein the grooves extend in a straight line along the axis of the air return section and/or the grooves extend in a spiral.

3. The evaporator as recited in claim 1, wherein said heat exchange tube is one of a circular tube, a square tube, a D-shaped tube, a microchannel tube and an internally toothed tube.

4. An evaporator according to claim 1 wherein the longitudinal sectional shape of the groove is one of a semicircular shape, a rectangular shape and a semi-elliptical shape.

5. An evaporator according to claim 1 wherein the air return section is configured with one or more of the grooves.

6. An evaporator assembly comprising a capillary tube and the evaporator of any of claims 1 to 5, wherein the capillary tube is disposed within the groove.

7. The evaporator assembly of claim 6, wherein a first corrosion protection layer is disposed between the capillary tube and the air return section.

8. The evaporator assembly of claim 7, wherein the first corrosion protection layer is a first aluminum foil positioned between the capillary tube and the groove, or the first corrosion protection layer is a layer of thermally conductive glue positioned between the capillary tube and the groove.

9. The evaporator assembly of claim 6, wherein an outer surface of at least one of the air return section and the capillary tube is provided with a second corrosion protection layer;

and/or the capillary tube and the gas return section are both aluminum tubes.

10. The evaporator assembly of claim 6, wherein the capillary tube and the air return section are secured in a wrapped configuration by a coating.

11. A refrigeration system comprising a compressor, a condenser and an evaporator assembly as claimed in any one of claims 6 to 10 connected to form a circulation loop.

12. The refrigeration system as set forth in claim 11, wherein the condensation tube of the condenser is one of a circular tube, a D-shaped tube, a rectangular tube, an internally toothed tube and a microchannel tube.

13. A refrigeration appliance comprising an appliance body to which is connected a refrigeration system as claimed in claim 11 or 12.

14. The refrigeration appliance according to claim 13, wherein the appliance body includes an inner box, the evaporator end being wound around an outside of the inner box.

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