CN218380578U

CN218380578U - Heat exchange device and heat exchange system

Info

Publication number: CN218380578U
Application number: CN202222315696.XU
Authority: CN
Inventors: 马剑
Original assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Current assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-01-24
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a heat transfer device and heat transfer system. The heat exchange device comprises: the heat exchange cavity is internally provided with a heat exchange cavity; the liquid guide cavity is at least partially arranged in the heat exchange cavity in a penetrating way, and the part of the liquid guide cavity positioned in the heat exchange cavity is provided with a spraying hole; the heat exchange structure is arranged in the heat exchange cavity, a cavity is surrounded by the heat exchange structure, and the cavity corresponds to the position of the spray holes; the heat exchange device is configured in such a way that the refrigerant introduced from the liquid guide cavity is sprayed in the cavity from the spraying holes so as to contact and exchange heat with the surface of the heat exchange structure. Among the above-mentioned heat transfer device, from spraying hole spun refrigerant, can get into the cavity, and then with the surface contact heat transfer of heat transfer structure, because the cavity can hold a certain amount of refrigerant and enclose into the surface area of the heat transfer structure of cavity great, make more refrigerants in the cavity can carry out the contact heat transfer with bigger heat transfer structure surface, promoted heat exchange efficiency, improved the heat transfer effect.

Description

Heat exchange device and heat exchange system

Technical Field

The utility model relates to a heat transfer device technical field, in particular to heat transfer device and heat transfer system.

Background

The working principle of the falling film heat exchanger is that the refrigerant flows away from the tank body, the refrigerant is sprayed to the heat exchange tubes below from the top of the tank body, and water flows away from the interior of the heat exchange tubes. However, in the related art, the heat exchange efficiency of the falling film heat exchanger is still low, and the heat exchange effect is affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses embodiment provides a heat transfer device and heat transfer system.

The utility model discloses embodiment's a heat transfer device, include:

the heat exchange cavity is internally provided with a heat exchange cavity;

the liquid guide cavity is at least partially arranged in the heat exchange cavity in a penetrating way, and the part of the liquid guide cavity positioned in the heat exchange cavity is provided with a spraying hole;

the heat exchange structure is arranged in the heat exchange cavity, a cavity is surrounded by the heat exchange structure, and the cavity corresponds to the position of the spraying hole;

the heat exchange device is configured to spray the refrigerant introduced from the liquid guide cavity into the cavity from the spray holes so as to enable the refrigerant to contact with the surface of the heat exchange structure for heat exchange.

Among the above-mentioned heat transfer device, from spraying hole spun refrigerant, can get into the cavity, and then with the surface contact heat transfer of heat transfer structure, because the cavity can hold a certain amount of refrigerant and enclose into the surface area of the heat transfer structure of cavity great, make more refrigerants in the cavity can carry out the contact heat transfer with bigger heat transfer structure surface, promoted heat exchange efficiency, improved the heat transfer effect.

In some embodiments, the heat exchange structure comprises a plurality of heat exchange tubes disposed around the liquid guiding cavity and formed with a plurality of heat exchange layers, the plurality of heat exchange tubes comprising a first heat exchange tube forming a first heat exchange layer and a second heat exchange tube forming a second heat exchange layer, the cavity being enclosed by the adjacent first and second heat exchange layers. Therefore, the specific scheme of exchanging heat of the heat exchange structure through the refrigerant can be provided.

In certain embodiments, in adjacent first and second heat exchange layers, the distance between the second heat exchange tube closest to the drainage cavity and the drainage cavity is greater than the distance between the first heat exchange tube closest to the drainage cavity and the drainage cavity. In this way, the formation of the cavity can be achieved.

In certain embodiments, the heat exchange structure comprises:

a first structure; and

a second structure, the first structure being spaced a distance from the second structure to form the cavity. In this way, the formation of the cavity can be achieved.

In some embodiments, the first heat exchange layer is formed by at least two first heat exchange tubes spirally surrounding the liquid guide cavity, the bottoms of at least two first spiral tubes formed by the at least two first heat exchange tubes in a spiral shape are aligned, the length of at least two first heat exchange tubes wound in the at least two first spiral tubes is equal, the at least two first spiral tubes are arranged along the radial direction of the heat exchange cavity, and/or the at least two first spiral tubes are arranged in the radial direction of the heat exchange cavity

The second heat exchange layer is formed by spirally surrounding the liquid guide cavity by at least two second heat exchange tubes, the bottoms of at least two second spiral tubes formed by the at least two second heat exchange tubes in a spiral mode are aligned, the lengths of the at least two second heat exchange tubes wound into the at least two second spiral tubes are equal, and the at least two second spiral tubes are arranged along the radial direction of the heat exchange cavity. Thus, the heat exchange pipes can be more compact.

In some embodiments, a first heat exchange tube wound around the first spiral tube has a length equal to a length of a second heat exchange tube wound around the second spiral tube. Therefore, the heat exchange effect of the heat exchange pipe can be improved.

In certain embodiments, the heat exchange device comprises:

the first liquid guide cavity is arranged close to the top of the liquid guide cavity, and the spraying hole is communicated with the bottom of the first liquid guide cavity;

the first liquid guide port is arranged at the top of the liquid guide cavity and communicated with the first liquid guide cavity;

the second liquid guide cavity is arranged close to the bottom of the liquid guide cavity;

the second liquid guide port is arranged at the top of the liquid guide cavity and communicated with the second liquid guide cavity; and

the third liquid guide port is arranged at the bottom of the liquid guide cavity and communicated with the heat exchange cavity and the second liquid guide cavity;

the liquid guide cavity is configured to spray a part of the refrigerant into the heat exchange cavity through the first liquid guide port, the first liquid guide cavity and the spray holes, and another part of the refrigerant is introduced into the heat exchange cavity through the second liquid guide port, the second liquid guide cavity and the third liquid guide port and used for balancing the liquid level of the liquid refrigerant in the heat exchange cavity.

In certain embodiments, the heat exchange device comprises:

and the refrigerant valve is used for conducting and sealing a pipeline communicated with the second liquid guide port, and the pipeline is used for conveying the refrigerant to the second liquid guide cavity or extracting the refrigerant from the second liquid guide cavity. Thus, the effects of evaporation and condensation can be advantageously achieved.

In certain embodiments, the heat exchange device comprises:

and the gas pipe is arranged close to the top of the heat exchange cavity and communicated with the heat exchange cavity, and the gas pipe is used for discharging gaseous refrigerants in the heat exchange cavity. Therefore, the gaseous refrigerant formed by heat exchange can be conveniently discharged.

The utility model discloses embodiment's a heat transfer system, including an above-mentioned arbitrary embodiment heat transfer device.

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

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a heat exchange device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a first heat exchange layer, a second heat exchange layer, and a cavity of an embodiment of the present invention;

FIG. 3 is another schematic structural diagram of a heat exchange device according to an embodiment of the present invention;

fig. 4 is a schematic view of a pipeline connection of a heat exchange system according to an embodiment of the present invention;

fig. 5 is another schematic view of the pipe connection of the heat exchange system according to the embodiment of the present invention.

Reference numerals:

a heat exchange device 100;

a heat exchange cavity 110, a heat exchange cavity 111, a cavity 112,

A liquid guide cavity 120, a spray hole 121, a first liquid guide cavity 122, a first liquid guide port 123, a second liquid guide cavity 124, a second liquid guide port 125, a third liquid guide port 126 and a partition 127;

a heat exchange structure 130, a heat exchange tube 131, a first heat exchange layer 132, a second heat exchange layer 133, a first structure 134, a second structure 135, a first heat exchange tube 136, a first spiral tube 137, a second heat exchange tube 138, and a second spiral tube 139;

an air pipe 140;

a heat exchange system 200;

a throttle valve 220, a compressor 230, a temperature sensor 240, a condenser 250, a cooling tower 260, a first water pump 271, a second water pump 272, a user terminal 280, and a return line 290.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that 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 indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The disclosure herein provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, a heat exchange device 100 according to an embodiment of the present invention includes a heat exchange cavity 110, a liquid guiding cavity 120, and a heat exchange structure 130. A heat exchange cavity 111 is formed inside the heat exchange cavity 110. The liquid guiding cavity 120 is at least partially inserted into the heat exchange cavity 111. Spraying holes 121 are formed in the liquid guide cavity 120 in the heat exchange cavity 111. The heat exchange structure 130 is disposed in the heat exchange chamber 111. The heat exchange structure 130 encloses a cavity 112. The cavities 112 correspond to the positions of the spray holes 121. The heat exchanging device 100 is configured such that the refrigerant introduced from the liquid guide cavity 120 is sprayed into the cavity 112 from the spraying holes 121 to contact and exchange heat with the surface of the heat exchanging structure 130.

Among the above-mentioned heat transfer device 100, from the coolant that sprays hole 121 spun, can get into cavity 112, and then with the surface contact heat transfer of heat transfer structure 130, because cavity 112 can hold a certain amount of coolant and enclose into the surface area of heat transfer structure 130 of cavity 112 great for more coolant in the cavity 112 can carry out the contact heat transfer with bigger heat transfer structure 130 surface, have promoted heat exchange efficiency, have improved the heat transfer effect.

Specifically, in the embodiment shown in fig. 1, the heat exchange structure 130 exchanges heat in the heat exchange cavity 111 to generate a large amount of heat. The refrigerant can be introduced into the heat exchange cavity 111 along the spraying holes 121, and the refrigerant introduced into the heat exchange cavity 111 is firstly sprayed into the cavity 112. Because the cavity 112 is formed by surrounding the heat exchange structure 130, the refrigerant can be continuously sprayed to the heat exchange structure 130 surrounding the cavity 112 in the cavity 112, and the heat exchange structure 130 has a larger surface area in contact with the refrigerant, so that heat generated by the heat exchange structure 130 can be absorbed more quickly, and further the heat exchange efficiency can be improved.

In fig. 1, the A1 direction and the A2 direction denote vertical directions. The direction A1 corresponds to the top of the heat exchange device 100. A2 The direction corresponds to the bottom of the heat exchange device 100. Along the direction A1 and the direction A2, part of the structure of the liquid guiding cavity 120 penetrates into the heat exchange cavity 111. The partial structure of the liquid guiding cavity 120 penetrating into the heat exchange cavity 111 is provided with a spraying hole 121. The shower holes 121 may face the inside of the heat exchange chamber 111. Under the condition that the refrigerant is introduced into the heat exchange cavity 111 through the liquid guide cavity 120, the refrigerant can be sprayed in the space in the cavity 112 along the spraying holes 121, and further can contact the heat exchange structure 130 enclosing the cavity 112. The refrigerant can absorb heat emitted from the heat exchange structure 130, so that heat exchange between the refrigerant and the heat exchange structure 130 can be realized.

In the embodiment shown in fig. 1, the refrigerant may be introduced into the liquid guiding cavity 120 from a portion of the liquid guiding cavity 120 that does not penetrate through the heat exchange cavity 111, and the refrigerant introduced into the liquid guiding cavity 120 flows to a position where the spraying holes 121 are located, so that spraying can be performed from the spraying holes 121.

The spray holes 121 may be disposed at any one height of the liquid guide chamber 120 along the A1 direction and the A2 direction. The number of the shower holes 121 may be one, or two or more. In the case where the number of the shower holes 121 is at least two, the at least two shower holes 121 may be located at the same height in the height direction of the heat exchange device 100, or the at least two shower holes 121 may be located at different heights in the height direction of the heat exchange device 100. By providing a plurality of spray holes 121, spray efficiency can be improved.

The cavity 112 is an area of the heat exchange chamber 111 that is not occupied by a particular structure. The refrigerant may further diffuse when sprayed in the cavity 112 to contact the heat exchange structure 130 surrounding the cavity 112.

Referring to fig. 1 and 2, in some embodiments, the heat exchange structure 130 includes a plurality of heat exchange tubes 131. A plurality of heat exchange pipes 131 are disposed around the liquid guiding chamber 120 and formed with a plurality of heat exchange layers. The plurality of heat exchange tubes 131 includes a first heat exchange tube 136 and a second heat exchange tube 138. The first heat exchange pipe 136 forms the first heat exchange layer 132. The second heat exchange pipe 138 forms a second heat exchange layer 133. The cavity 112 is surrounded by adjacent first and second heat transfer layers 132 and 133.

Thus, a specific scheme for exchanging heat of the heat exchanging structure 130 through the refrigerant can be provided.

In the embodiment shown in fig. 1, the directions A3 and A4 denote radial directions perpendicular to the liquid guiding chamber 120. The heat exchange pipes 131 are circumferentially arranged in the A1 direction and the A2 direction. Each heat exchange tube 131 is disposed in a surrounding manner, and each adjacent two turns of each heat exchange tube 131 may have the same pitch therebetween.

In fig. 1, the number of the heat exchange tubes 131 is six. The six heat exchange tubes 131 are a heat exchange tube 131a, a heat exchange tube 131b, a heat exchange tube 131c, a heat exchange tube 131d, a heat exchange tube 131e, and a heat exchange tube 131f, respectively. Along the A3 direction and the A4 direction, the heat exchange tube 131a, the heat exchange tube 131b, the heat exchange tube 131c, and the heat exchange tube 131d are on one horizontal plane, and the heat exchange tube 131e and the heat exchange tube 131f are on the other horizontal plane. The number of the heat exchange pipes 131 can be adjusted according to specific situations.

In one embodiment, the first heat exchange pipe 136 may be a heat exchange pipe 131a, and the second heat exchange pipe 138 may be a heat exchange pipe 131e. The heat exchange pipe 131a forms a first heat exchange layer 132. The heat exchange tube 131e forms a second heat exchange layer 133. In another embodiment, the first heat exchange pipe 136 may be a heat exchange pipe 131b, and the second heat exchange pipe 138 may be a heat exchange pipe 131e. The heat exchange pipe 131b forms a first heat exchange layer 132. The heat exchange tube 131e forms a second heat exchange layer 133.

In yet another embodiment, the first heat exchange pipe 136 may be a heat exchange pipe 131b, and the second heat exchange pipe 138 may be a heat exchange pipe 131e. The heat exchange pipe 131b forms a first heat exchange layer 132. The heat exchange tube 131e forms a second heat exchange layer 133. In yet another embodiment, the first heat exchange pipe 136 may be a heat exchange pipe 131a and a heat exchange pipe 131b, and the second heat exchange pipe 138 may be a heat exchange pipe 131e. The heat exchange tube 131a and the heat exchange tube 131b form a first heat exchange layer 132. The heat exchange pipe 131e forms a second heat exchange layer 133. In yet another embodiment, the first heat exchange pipe 136 may be a heat exchange pipe 131a, and the second heat exchange pipe 138 may be a heat exchange pipe 131f. The heat exchange pipe 131a forms a first heat exchange layer 132. The heat exchange pipe 131f forms a second heat exchange layer 133. In yet another embodiment, the first heat exchange pipe 136 may be a heat exchange pipe 131b, and the second heat exchange pipe 138 may be a heat exchange pipe 131f. The heat exchange pipe 131b forms a first heat exchange layer 132. The heat exchange pipe 131f forms a second heat exchange layer 133. In yet another embodiment, the first heat exchange pipe 136 may be a heat exchange pipe 131c, and the second heat exchange pipe 138 may be a heat exchange pipe 131f. The heat exchange pipe 131c forms a first heat exchange layer 132. The heat exchange pipe 131f forms a second heat exchange layer 133. In still another embodiment, the first heat exchanging pipe 136 may be a heat exchanging pipe 131a and a heat exchanging pipe 131b, and the second heat exchanging pipe 138 may be a heat exchanging pipe 131f. The heat exchange tube 131a and the heat exchange tube 131b form a first heat exchange layer 132. The heat exchange pipe 131f forms a second heat exchange layer 133. In yet another embodiment, the first heat exchange pipe 136 may be a heat exchange pipe 131b and a heat exchange pipe 131c, and the second heat exchange pipe 138 may be a heat exchange pipe 131f. The heat exchange tube 131b and the heat exchange tube 131c form a first heat exchange layer 132. The heat exchange pipe 131f forms a second heat exchange layer 133. In yet another embodiment, the first heat exchange pipe 136 may be a heat exchange pipe 131a, a heat exchange pipe 131b, and a heat exchange pipe 131c, and the second heat exchange pipe 138 may be a heat exchange pipe 131f. The heat exchange tube 131a, the heat exchange tube 131b, and the heat exchange tube 131c form a first heat exchange layer 132. The heat exchange pipe 131f forms a second heat exchange layer 133.

Of course, it is understood that, on the basis of the above embodiment, the second heat exchange layer 133 may also be formed by the heat exchange tube 131e and the heat exchange tube 131f together. And will not be elaborated upon here.

Referring to fig. 2, in some embodiments, in the adjacent first heat exchange layer 132 and second heat exchange layer 133, the distance between the second heat exchange tube 138 closest to the drainage cavity 120 and the drainage cavity 120 is greater than the distance between the first heat exchange tube 136 closest to the drainage cavity 120 and the drainage cavity 120.

In this manner, the formation of the cavity 112 may be achieved.

Referring to fig. 2, in fig. 2, the pitch between two adjacent turns of the heat exchange pipe 131 forming the first heat exchange layer 132 forms an interval, and the formed interval and the second heat exchange layer 133 are on the same horizontal plane along the A3 direction and the A4 direction. Since the second heat exchanging layer 133 is farther from the fluid guiding cavity 120 in the A3 direction and the A4 direction and the formed space is closer to the fluid guiding cavity 120 in the A3 direction and the A4 direction, the second heat exchanging layer 133 tends to surround the formed space, so that the space exists as the cavity 112.

Referring to FIG. 3, in some embodiments, heat exchange structure 130 includes a first structure 134 and a second structure 135. The first structure 134 is spaced a distance from the second structure 135 to form the cavity 112.

In this manner, the formation of the cavity 112 may be achieved.

Specifically, in fig. 3, along the A1 direction and the A2 direction, the first structure 134 is disposed near the top of the heat exchange device 100, and the second structure 135 is disposed near the bottom of the heat exchange device 100. The first structure 134 and the second structure 135 are spaced apart from each other in the A1 direction and the A2 direction such that the spacing from each other forms the cavity 112. The cavity 112 and the shower holes 121 are in the same horizontal plane in the A3 direction and the A4 direction. In the case where the refrigerant sprays the heat exchange structure 130 through the spray holes 121, the refrigerant sprayed toward the top of the heat exchange device 100 contacts the first structure 134, and the refrigerant sprayed toward the bottom of the heat exchange device 100 contacts the second structure 135.

In addition, in the case where the heat exchange structure 130 is constituted by the heat exchange tubes 131, the heat exchange tubes 131 may form the first structure 134 by a part thereof and form the second structure 135 by another part thereof. The number of the heat exchange pipes 131 may be one, or two or more. In the case where the number of the heat exchange tubes 131 is two or more, the first structure 134 may be formed for some of the heat exchange tubes 131, and the second structure 135 may be formed for the other heat exchange tubes 131.

Referring to fig. 1, in some embodiments, the first heat exchange layer is formed by at least two first heat exchange tubes 136 spirally surrounding the drainage cavity 120. The bottoms of at least two first spiral tubes 137, in which at least two first heat exchange tubes 136 are spirally formed, are aligned. The at least two first heat exchanging pipes 136 wound into the at least two first spiral pipes 137 have the same length. At least two first spiral pipes 137 are arranged along the radial direction of the heat exchange chamber. Alternatively, the second heat exchange layer is formed by at least two second heat exchange tubes 138 spirally surrounding the drainage cavity 120. The bottoms of at least two second spiral tubes 139 formed by spiraling the at least two second heat exchange tubes 138 are aligned. The at least two second heat exchanging pipes 138 wound into the at least two second spiral pipes 139 have the same length. At least two second helical tubes 139 are arranged radially of the heat exchange chamber.

In this manner, the space between the heat exchange pipes 131 can be made more compact.

Specifically, the height direction of the heat exchange device 100 may correspond to the A1 direction and the A2 direction. The radial direction of the heat exchange cavity 110 may correspond to the A3 direction and the A4 direction. In the embodiment shown in FIG. 1, the bottoms of the plurality of first coils 137 may be aligned at the same level in the A3 direction and the A4 direction at the bottom inside the heat exchange chamber 111. The

heat exchange tubes

131a, 131b, 131c and 131d have the same horizontal plane in the A1 direction and the A2 direction at the bottom in the heat exchange chamber 111 after at least two of them are formed with the first heat exchange tube 136, and have the same horizontal plane in the A1 direction and the A2 direction at the bottom in the heat exchange chamber 111 after at least one of them is formed with the second heat exchange tube 138 for the

heat exchange tubes

131e and 131f. The first spiral pipe 137 formed by spirally surrounding the

heat exchange pipes

131a and 131b around the liquid guide chamber 120 may have the same length. The first spiral pipe 137 formed by spirally surrounding the liquid guide chamber 120 with the

heat exchange pipes

131c and 131d may have the same length. The second spiral tube 139 formed by spirally surrounding the liquid guiding chamber 120 by the

heat exchanging tubes

131e and 131f may have the same length. The length of the helical tube is the total length of the helical structure of the heat exchange tube 131 extending around the liquid guiding chamber 120.

Because the first spiral pipes 137 are spirally arranged around the liquid guide cavity 120 in a surrounding manner, and the at least two first spiral pipes 137 are sequentially arranged along the A3 direction and the A4 direction, the at least two first spiral pipes 137 are closer to each other, and the structure of the first heat exchange layer is more compact.

Because the second spiral pipes 139 are spirally arranged around the liquid guide cavity 120, and the at least two second spiral pipes 139 are sequentially arranged along the directions A3 and A4, the at least two second spiral pipes 139 can be closer to each other, and the structure of the second heat exchange layer is more compact.

In addition, in some embodiments, based on the above embodiments, the first heat exchange layer is formed by at least two first heat exchange tubes 136 spirally surrounding the drainage cavity 120. The bottoms of at least two first spiral tubes 137, in which at least two first heat exchange tubes 136 are spirally formed, are aligned. The at least two first heat exchanging pipes 136 wound into the at least two first spiral pipes 137 have the same length. At least two first spiral tubes 137 are arranged along the radial direction of the heat exchange cavity. The second heat exchange layer is formed by at least two second heat exchange tubes 138 spiraling around the drainage cavity 120. The bottoms of at least two second spiral tubes 139 formed by spirally winding at least two second heat exchange tubes 138 are aligned. The at least two second heat exchanging pipes 138 wound into the at least two second spiral pipes 139 have the same length. At least two second coils 139 are arranged in the radial direction of the heat exchange chamber. In this way, the space between the heat exchange pipes 131 can be made more compact.

Referring to fig. 1, in some embodiments, a first heat exchanging pipe 136 wound as a first spiral pipe 137 has a length equal to a second heat exchanging pipe 138 wound as a second spiral pipe 139.

Thus, the heat exchange effect of the heat exchange pipe 131 can be improved.

It can be understood that, in fig. 1, the

heat exchanging pipes

131c, 131d, 131e and 131f are farther from the liquid guiding chamber 120 than the

heat exchanging pipes

131a and 131 b. In the case where at least one of the

heat exchange tubes

131c, 131d, 131e and 131f has the same length as at least one of the

heat exchange tubes

131a and 131b, the heat exchange tube 131 far from the liquid guiding chamber 120 may have fewer number of turns around, and the heat exchange tube 131 near the liquid guiding chamber 120 may have more number of turns around, resulting in a structural form in which the heat exchange structure 130 is integrally closer to the liquid guiding chamber 120. Since the bottoms of the plurality of heat exchange tubes 131 are aligned, the heat exchange structure 130 can be more concentrated at the bottom of the heat exchange device 100. Under the condition that the refrigerant is accumulated at the bottom of the heat exchange cavity 110, the heat exchange structure 130 can be immersed in the accumulated refrigerant in more parts, so that the heat exchange tube 131 and the refrigerant have more contact degrees and contact time, and the effect of improving heat exchange is achieved.

In certain embodiments, heat exchange device 100 comprises a first fluid conducting chamber 122, a first fluid conducting port 123, a second fluid conducting chamber 124, a second fluid conducting port 125, and a third fluid conducting port 126. First drainage lumen 122 is disposed proximate a top of drainage lumen 120. The spray holes 121 are communicated with the bottom of the first liquid guide cavity 122. First drainage port 123 is disposed at the top of drainage chamber 120 and communicates with first drainage chamber 122. Second drainage lumen 124 is disposed proximate a bottom of drainage lumen 120. The second drainage port 125 is disposed at the top of the drainage chamber 120 and communicates with the second drainage chamber 124. Third drain port 126 is disposed at a bottom of drain chamber body 120 and communicates heat exchange chamber 111 with second drain chamber 124. The liquid guide cavity 120 is configured to spray a part of the refrigerant into the heat exchange cavity 111 through the first liquid guide port 123, the first liquid guide cavity 122, and the spray holes 121, and to introduce another part of the refrigerant through the second liquid guide port 125, the second liquid guide cavity 124, and the third liquid guide port 126. The other part of the refrigerant is used for balancing the liquid level of the liquid refrigerant in the heat exchange cavity 111.

In this way, the refrigerant can be introduced into the heat exchange chamber 111 and discharged from the heat exchange chamber 111.

Specifically, in fig. 1, the refrigerant may be introduced into the liquid refrigerant from the first liquid guide port 123. The liquid refrigerant flows into the first liquid guiding cavity 122 along the direction A2, and sprays the cavity 112 from the spraying holes 121 at the bottom of the first liquid guiding cavity 122. In the case of spraying, the refrigerant may contact the surface of the heat exchange structure 130, and a portion of the refrigerant may flow downward along the direction A2 due to the gravity and may flow to the bottom of the heat exchange cavity 111.

The refrigerant is gradually accumulated at the bottom of the heat exchange cavity 111, so that a liquid refrigerant with a certain liquid level is formed at the bottom of the heat exchange cavity 111. In this case, the refrigerant flows into second liquid guide chamber 124 from third liquid guide port 126. The refrigerant in the second liquid guiding cavity 124 can be discharged through the second liquid guiding port 125, or the refrigerant can be introduced into the second liquid guiding cavity 124 through the second liquid guiding port 125, so that the liquid level of the liquid refrigerant in the heat exchanging cavity 111 can be balanced. In FIG. 1, first drainage lumen 122 and second drainage lumen 124 are separated from one another by a partition 127.

Referring to fig. 1, in some embodiments, the heat exchanger 100 includes a refrigerant valve (not shown). The refrigerant valve is used for communicating and sealing the pipeline communicated with the second liquid guide port 125. The pipe is used for supplying or extracting the refrigerant to or from the second liquid guiding chamber 124.

Thus, the evaporation and condensation effects can be advantageously achieved.

Specifically, referring to fig. 1, in a case where the refrigerant valve closes the pipeline communicating with the second liquid guide port 125, the liquid refrigerant cannot be discharged from the second liquid guide port 125, and thus continues to accumulate at the bottom of the heat exchange cavity 111. Under the condition that the heat exchange structure 130 releases heat into the heat exchange cavity 111, the liquid refrigerant absorbs heat and evaporates to form a gaseous refrigerant, so as to achieve an evaporation effect. Under the condition that the refrigerant valve switches on the pipeline of intercommunication second drain 125, then can let in the refrigerant through first drain 123, lead to out the refrigerant through second drain 125 for the refrigerant flows in heat transfer chamber 111, and the liquid level of liquid refrigerant can maintain at the certain limit, and can continuously carry out the heat transfer with heat transfer structure 130, realizes the condensation effect.

Referring to fig. 1, in some embodiments, heat exchange device 100 includes gas tube 140. The gas pipe 140 is disposed near the top of the heat exchange cavity 110 and communicates with the heat exchange cavity 111. The gas pipe 140 is used for discharging the gaseous refrigerant in the heat exchange cavity 111.

Therefore, the gaseous refrigerant formed by heat exchange can be conveniently discharged.

Referring to fig. 4 and 5, a heat exchange system 200 according to an embodiment of the present invention includes the heat exchange device 100 according to any one of the above embodiments.

In the heat exchange system 200, the refrigerant sprayed from the spraying holes 121 can enter the cavity 112, and further exchange heat with the surface contact of the heat exchange structure 130, because the cavity 112 can contain a certain amount of refrigerant and the surface area of the heat exchange structure 130 enclosing the cavity 112 is large, more refrigerants in the cavity 112 can exchange heat with the surface of the larger heat exchange structure 130 in a contact manner, the heat exchange efficiency is improved, and the heat exchange effect is improved.

Specifically, referring to fig. 4 and 5, in some embodiments, the liquid level at the bottom of the heat exchange chamber 111 can be controlled to a certain height by a liquid level sensor (not shown) in conjunction with the throttle valve 220. For a lubricating oil system, an oil return hole (not shown) is formed in the bottom of the heat exchange cavity 111, oil in the heat exchanger returns to the compressor 230 in an injection oil return mode, and the operation safety of the compressor 230 is guaranteed.

A liquid level sensor may be provided at the bottom of the heat exchange chamber 111. The liquid level sensor is used for detecting the liquid level height in the heat exchange cavity 111, and the liquid level sensor and the electronic expansion valve can be linked to regulate the total amount of liquid refrigerant sprayed by the liquid pipe 115, so that the heat exchange effect of a full-falling film can be achieved, and the spraying amount of the liquid refrigerant is reduced. It is understood that the position of the liquid level sensor is not limited, and the liquid level sensor may be disposed in the heat exchange chamber 111, may be disposed in the second chamber 164, may be disposed at an intermediate position of the heat exchange chamber 111, and may be disposed at other positions of the heat exchange chamber 111. When the liquid level sensor is arranged at different positions, the liquid level height of the trigger linkage can be calibrated at the corresponding position.

In the heat exchange system 200 with oil return requirement, please refer to fig. 4, the compressor 230 is used to raise the low-temperature and low-pressure gas entering the compressor 230 from the inlet of the compressor 230 into high-temperature and high-pressure gas and discharge the gas from the outlet of the compressor 230. The temperature sensor 240 may detect the temperature of the gaseous refrigerant at the inlet and outlet of the compressor 230, so as to ensure the compressor 230 operates normally. The low-temperature and low-pressure gaseous refrigerant is compressed by the compressor 230, and is converted into a high-temperature and high-pressure gaseous refrigerant, and the gaseous refrigerant flows from the outlet of the compressor 230 to the condenser 250, where the gaseous refrigerant is converted into a low-temperature and high-pressure liquid refrigerant by heat dissipation in the condenser 250. The high-temperature and high-pressure gaseous refrigerant may exchange heat with the cooling water in the condenser 250 to generate high-temperature cooling water. The high-temperature cooling water can flow into the cooling tower 260 to perform heat release cooling, and the low-temperature cooling water is obtained after being cooled by the cooling tower 260 and then pumped back to the condenser 250 by the first water pump 271. The low-temperature high-pressure liquid refrigerant can be throttled into the low-temperature low-pressure liquid refrigerant by the throttle valve 220, the low-temperature low-pressure liquid refrigerant finally enters the heat exchange cavity 111 to exchange heat with the heat exchange tube 131, and low-temperature cold water generated after heat exchange can be supplied to the user terminal 280 by the second water pump 272. The user end 280 may be a wind plate or other device. In some embodiments, the second water pump 272 may pump water into the heat exchange device 100 to exchange heat with the liquid refrigerant, and the second water pump 272 may also pump the water after exchanging heat with the liquid refrigerant out of the heat exchange device 100 for the user end 280. In some embodiments, the heat exchange system 200 further includes a return line 290, and the lubricant in the heat exchange device 100 is returned to the compressor 230 through the return line 290 by using a method of injecting return oil. The throttle valve 220 may be an electronic expansion valve.

In the heat exchange system 200 without oil return requirement, please refer to fig. 5, the compressor 230 is used to raise the low-temperature and low-pressure gas entering the compressor 230 from the inlet of the compressor 230 into high-temperature and high-pressure gas and discharge the gas from the outlet of the compressor 230. The temperature sensor 240 may detect the temperature of the gaseous refrigerant at the inlet and outlet of the compressor 230 to ensure the normal operation of the compressor. The low-temperature and low-pressure gaseous refrigerant is compressed by the compressor 230, and is converted into a high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant flows from the outlet of the compressor 230 to the condenser 250, and is converted into a low-temperature and high-pressure liquid refrigerant by heat dissipation in the condenser 250. The high-temperature and high-pressure gaseous refrigerant may exchange heat with the cooling water in the condenser 250 to generate high-temperature cooling water. The high-temperature cooling water may flow into the cooling tower 260 to perform heat dissipation cooling, and then the low-temperature cooling water is obtained after being cooled by the cooling tower 260, and then the low-temperature cooling water is pumped back to the condenser 250 by the first water pump 271. The low-temperature high-pressure liquid refrigerant can be throttled into the low-temperature low-pressure liquid refrigerant by the throttle valve 220, the low-temperature low-pressure liquid refrigerant finally enters the heat exchange cavity 111 to exchange heat with the heat exchange tube 131, and low-temperature cold water generated after heat exchange can be supplied to the user terminal 280 by the second water pump 272. In some embodiments, the second water pump 272 may pump water into the heat exchange device 100 to exchange heat with the liquid refrigerant, and the second water pump 272 may also pump the water after exchanging heat with the liquid refrigerant out of the heat exchange device 100 for the user end 280.

It should be noted that the lubricating oil in the compressor 230 is mixed in the refrigerant and discharged from the outlet of the compressor 230, and is changed into high-temperature and high-pressure liquid lubricating oil, and the lubricating oil releases heat in the condenser 250, and is throttled by the electronic expansion valve into low-temperature and low-pressure liquid lubricating oil, and finally enters the heat exchange device 100 along with the low-temperature and low-pressure liquid refrigerant. In the heat exchanger 100, the liquid refrigerant is changed into a gaseous refrigerant after heat exchange, the gaseous refrigerant returns to the compressor 230 through the air pipe 140, and the liquid lubricant is accumulated in the heat exchanger 100 and returns to the compressor 230 through the oil return pipe 290.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like means 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 present invention. In this specification, schematic representations of the above terms do not necessarily 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat exchange device, comprising:

the heat exchange cavity is internally provided with a heat exchange cavity;

2. The heat exchange device of claim 1, wherein the heat exchange structure comprises a plurality of heat exchange tubes disposed around the liquid guide cavity and formed with a plurality of heat exchange layers, the plurality of heat exchange tubes comprising a first heat exchange tube forming a first heat exchange layer and a second heat exchange tube forming a second heat exchange layer, the cavity being bounded by adjacent first and second heat exchange layers.

3. The heat exchange device of claim 2, wherein of the first and second adjacent heat exchange layers, the second heat exchange tube closest to the drainage cavity is spaced further from the drainage cavity than the first heat exchange tube closest to the drainage cavity.

4. The heat exchange device of claim 1, wherein the heat exchange structure comprises:

a first structure; and

a second structure, the first structure being spaced a distance from the second structure to form the cavity.

5. The heat exchange device according to claim 2, wherein the first heat exchange layer is formed by at least two first heat exchange tubes spirally surrounding the liquid guide cavity, the bottoms of at least two first spiral tubes formed by the at least two first heat exchange tubes spirally are aligned, the length of at least two first heat exchange tubes wound in the at least two first spiral tubes is equal, the at least two first spiral tubes are arranged along the radial direction of the heat exchange cavity, and/or

The second heat exchange layer is formed by spirally surrounding the liquid guide cavity by at least two second heat exchange tubes, the bottoms of at least two second spiral tubes formed by the at least two second heat exchange tubes in a spiral shape are aligned, the lengths of the at least two second heat exchange tubes wound into the at least two second spiral tubes are equal, and the at least two second spiral tubes are arranged along the radial direction of the heat exchange cavity.

6. The heat exchange device of claim 5, wherein the first heat exchange tube wound in the first spiral tube has a length equal to a length of the second heat exchange tube wound in the second spiral tube.

7. The heat exchange device of claim 1, wherein the heat exchange device comprises:

the liquid guide cavity is configured to spray a part of the refrigerant into the heat exchange cavity through the first liquid guide port, the first liquid guide cavity and the spray holes, and another part of the refrigerant is introduced through the second liquid guide port, the second liquid guide cavity and the third liquid guide port and used for balancing the liquid level of the liquid refrigerant in the heat exchange cavity.

8. The heat exchange device of claim 7, wherein the heat exchange device comprises:

and the refrigerant valve is used for conducting and sealing a pipeline communicated with the second liquid guide port, and the pipeline is used for conveying the refrigerant to the second liquid guide cavity or extracting the refrigerant from the second liquid guide cavity.

9. The heat exchange device of claim 1, wherein the heat exchange device comprises:

the air pipe is arranged close to the top of the heat exchange cavity and communicated with the heat exchange cavity, and the air pipe is used for discharging gaseous refrigerants in the heat exchange cavity.

10. A heat exchange system, comprising:

the heat exchange device of any one of claims 1-9.