CN216898505U

CN216898505U - Heat exchanger

Info

Publication number: CN216898505U
Application number: CN202220194227.4U
Authority: CN
Inventors: 李嘉瑞; 乐成承; 陆祖安; 李鑫; 刘稳
Original assignee: Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-07-05
Anticipated expiration: 2032-01-24

Abstract

The utility model discloses a heat exchange device, comprising: the heat exchange device comprises a plurality of heat exchange boxes, a heat storage material is filled in each heat exchange box, the heat exchange boxes are arranged at intervals, and a heat exchange flow channel is defined between every two adjacent heat exchange boxes; the heat exchange tubes penetrate through the heat exchange boxes, and pipeline fins are arranged on the portions, matched in the heat exchange boxes, of the heat exchange tubes. The heat exchange device provided by the embodiment of the utility model has the advantages of high heat exchange efficiency, good heat exchange effect and the like.

Description

Heat exchanger

Technical Field

The utility model relates to the technical field of heat exchange, in particular to a heat exchange device.

Background

In the heat exchange device in the related art, the heat exchange of two fluids is realized by utilizing the flowing of the two fluids in the heat exchange device, but the heat exchange efficiency is lower and the heat exchange effect is poorer.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a heat exchange device which has the advantages of high heat exchange efficiency, good heat exchange effect and the like.

To achieve the above object, a heat exchange apparatus according to an embodiment of the present invention is provided, the heat exchange apparatus including: the heat exchange device comprises a plurality of heat exchange boxes, a heat storage material is filled in each heat exchange box, the heat exchange boxes are arranged at intervals, and a heat exchange flow channel is defined between every two adjacent heat exchange boxes; the heat exchange tubes penetrate through the heat exchange boxes, and the portions, matched in the heat exchange boxes, of the heat exchange tubes are provided with tube fins.

The heat exchange device provided by the embodiment of the utility model has the advantages of high heat exchange efficiency, good heat exchange effect and the like.

In addition, the heat exchange device according to the above embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the utility model, the tube fin extends in the axial direction of the heat exchange tube.

According to one embodiment of the utility model, the tube fin is a plurality of tube fins arranged at intervals along the circumferential direction of the heat exchange tube.

According to one embodiment of the utility model, a flow channel fin is connected between every two adjacent heat exchange boxes.

According to one embodiment of the utility model, the cross section of the flow channel fin in the direction perpendicular to the thickness direction of the heat exchange box is in a zigzag shape.

According to one embodiment of the utility model, a plurality of flow channel fins which are arranged at intervals are connected between every two adjacent heat exchange boxes.

According to one embodiment of the present invention, the heat exchange pipe comprises: the heat exchange box comprises a plurality of heat exchange boxes, a plurality of penetrating sections and a plurality of heat exchange pipes, wherein each penetrating section penetrates through the plurality of heat exchange boxes along the thickness direction of the heat exchange boxes; and each connecting section is respectively connected with the two penetrating sections.

According to one embodiment of the present invention, the heat exchange device further comprises two cover plates, and two cover plates are respectively connected with two opposite surfaces of each heat exchange box.

According to one embodiment of the utility model, the heat storage material is a phase change material.

According to one embodiment of the utility model, the heat storage material is a hydrated salt phase change material.

According to one embodiment of the utility model, the minimum distance between every two adjacent flow channel fins in each heat exchange flow channel is greater than or equal to 15 mm.

Additional aspects and advantages of the utility model 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 utility model.

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 view of a heat exchange device according to an embodiment of the present invention.

Fig. 2 is an exploded view of a heat exchange device according to an embodiment of the present invention.

Fig. 3 is a partial structural schematic view of a heat exchange device according to an embodiment of the present invention.

Fig. 4 is an exploded view of a heat exchange device according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view of a heat exchange device according to an embodiment of the present invention.

Fig. 6 is a partial structural schematic view of a heat exchange device according to an embodiment of the present invention.

Reference numerals: the heat exchange device comprises a heat exchange device 10, a heat exchange box 100, a heat exchange flow channel 101, an injection port 110, a main body part 120, a cover part 130, a heat exchange pipe 200, a water inlet 201, a water outlet 202, a penetrating section 210, a connecting section 220, a pipeline fin 230, a flow channel fin 300, a cover plate 400 and an avoiding port 410.

Detailed Description

The present application is based on the discovery and recognition by the inventors of the following facts and problems:

Specifically, the heat exchange device in the related art is generally provided with a heat exchange tube through which a liquid such as water flows, and the heat exchange between the air flow and the liquid is realized by blowing the air flow through the heat exchange tube.

The partial heat exchange device adopts heat storage materials such as phase change materials and the like as intermediate heat exchange media of liquid and air flow, and can improve heat exchange efficiency and heat exchange effect.

For example, part of the heat exchange device is provided with a plurality of containers for storing the heat storage material, and the heat exchange tubes are penetrated through the containers, so that air flow is blown among the containers, and heat exchange among the air flow, the heat storage material and the liquid is realized. However, the contact area between the heat exchange tube and the heat storage material is limited, and it is difficult to sufficiently utilize the heat storage material in the container.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar 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 illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A heat exchange device 10 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 6, a heat exchange device 10 according to an embodiment of the present invention includes a plurality of heat exchange tanks 100 and heat exchange tubes 200.

Each heat exchange box 100 is filled with a heat storage material, and a plurality of heat exchange boxes 100 are arranged at intervals, and a heat exchange flow channel 101 is defined between every two adjacent heat exchange boxes 100. The heat exchange tubes 200 pass through the plurality of heat exchange boxes 100, and the portions of the heat exchange tubes 200 fitted in the heat exchange boxes 100 are provided with tube fins 230.

According to the heat exchange device 10 of the embodiment of the utility model, the heat exchange box 100 is arranged, the heat storage material is filled in the heat exchange box 100, and the heat exchange tube 200 passes through the heat exchange box 100, so that when the fluid in the heat exchange flow channel 101 flows through, the heat exchange device can exchange heat with the heat storage material in the heat exchange box 100 and the heat exchange tube 100, and the heat storage material further exchanges heat with the heat exchange tube 200 and the fluid in the heat exchange tube 200, thereby realizing the heat exchange between the fluid in the heat exchange tube 200 and the fluid in the heat exchange flow channel 101. Because the heat storage material is adopted as the intermediate heat exchange medium, the heat storage material can fully absorb and emit heat, thereby avoiding heat loss, and further improving the overall heat exchange efficiency and the heat exchange effect of the heat exchange device 10.

In addition, the part of the heat exchange tube 200 matched with the heat exchange box 100 is provided with the tube fin 230, the contact area between the heat exchange tube 200 and the heat storage material in the heat exchange box 100 and between the tube fin 230 and the heat exchange tube 200 can be increased by using the tube fin 230, the heat exchange tube 200 and the tube fin 230 can be fully contacted with the heat storage material in the heat exchange box 100, heat exchange can be fully performed, the heat storage material in the heat exchange box 100 can be fully utilized, compared with a heat exchange device in the related art, the heat exchange efficiency can be further improved, and the heat exchange effect is improved.

Therefore, the heat exchange device 10 according to the embodiment of the present invention has the advantages of high heat exchange efficiency, good heat exchange effect, and the like.

In some embodiments of the present invention, as shown in fig. 1 to 6, a heat exchange device 10 according to an embodiment of the present invention includes a plurality of heat exchange tanks 100 and heat exchange tubes 200.

Specifically, as shown in fig. 4 and 6, the tube fin 230 extends in the axial direction of the heat exchange tube 200. Therefore, the contact area between the pipeline fin 230 and the outer surface of the heat exchange tube 200 can be increased, heat exchange is more sufficient, and the fluid in the heat exchange tube 200 can flow along the axial direction of the fluid, so that the heat exchange effect between the fluid in the heat exchange tube 200 and the pipeline fin 230 can be improved by arranging the pipeline fin 230 along the axial direction of the heat exchange tube 200, the heat exchange effect between the fluid in the heat exchange tube 200 and the heat storage material is improved, and the heat exchange effect between the fluid in the heat exchange tube 200 and the fluid in the heat exchange flow channel 101 is improved.

More specifically, as shown in fig. 4 and 6, the tube fin 230 is plural and is disposed at intervals in the circumferential direction of the heat exchange tube 200. Specifically, three equally spaced tube fins 230 are provided on each section of the heat exchange tube 200 fitted in the heat exchange box 100. This can further increase the contact area of the heat exchange tube 200 and the tube fin 230 with the heat storage material, thereby further improving the heat exchange efficiency and the heat exchange effect.

Fig. 2-6 illustrate a heat exchange apparatus 10 according to some examples of the utility model. As shown in fig. 2 to 6, a flow channel fin 300 is connected between each adjacent two heat exchange boxes 100. Therefore, the contact area between the fluid in the heat exchange flow channel 101 and the fluid in the heat exchange box 100 and the flow channel fins 300 can be increased, so that the heat exchange box 100 can fully exchange heat with the fluid in the heat exchange flow channel 101, and the heat exchange efficiency and the heat exchange effect of the heat exchange device 10 are further improved.

Advantageously, as shown in fig. 5, the fin 300 has a polygonal cross section perpendicular to the thickness direction of the heat exchange box 100. This enables the fluid to sufficiently exchange heat with the flow channel fin 300 when flowing through the heat exchange flow channel 101, thereby further improving the heat exchange efficiency and the heat exchange effect.

Specifically, as shown in fig. 5, a plurality of flow channel fins 300 are connected between every two adjacent heat exchange boxes 100. Thus, the heat exchange between the fluid in the heat exchange flow channel 101 and the flow channel fins 300 can be performed, the heat exchange area is further increased, and the heat exchange efficiency and the heat exchange effect of the heat exchange device 10 are improved.

Specifically, the longitudinal direction of the flow channel fin 300 is oriented in the flow direction of the fluid in the heat exchange flow channel 101 and is provided at intervals in the thickness direction of the flow channel fin 300. As shown in fig. 5, the upper and lower ends of the heat exchange flow channel 101 are open, and the longitudinal direction of the flow channel fin 300 may be oriented in the up-down direction and spaced in the front-rear direction (the up-down and front-rear directions are indicated by arrows in the drawing and are merely for convenience of description, and are not limited to the actual arrangement direction). This facilitates the flow of fluid between two adjacent flow channel fins 300.

Further, as shown in fig. 5, the distance between each adjacent two of the flow channel fins 300 may be equal everywhere.

Fig. 1-6 illustrate a heat exchange apparatus 10 according to some examples of this invention. As shown in fig. 1 to 6, the heat exchange pipe 200 includes a plurality of penetrating segments 210 and at least one connecting segment 220. Each of the pass-through sections 210 passes through the plurality of heat exchange boxes 100 in the thickness direction of the heat exchange boxes 100. Each connecting section 220 is connected to two through sections 210. Specifically, the heat exchange pipe 200 has a water inlet 201 and a water outlet 202, and a plurality of penetrating segments 210 and at least one connecting segment 220 are alternately connected to form one pipe. The connecting section 220 may be a bent pipe. Tube fins 230 are provided on the pass-through section 210. Therefore, the contact area between the heat exchange tube 200 and the heat storage material in the heat exchange box 100 can be increased, and the heat exchange efficiency and the heat exchange effect can be further improved.

Specifically, four penetrating sections 210 may be fitted into one heat exchange box 100.

Advantageously, as shown in fig. 1 and 2, the heat exchange device 10 further comprises two cover plates 400, the two cover plates 400 being respectively associated with two opposite surfaces of each heat exchange box 100. Specifically, two cover plates 400 are respectively coupled to front and rear surfaces of each heat exchange box 100 to define heat exchange flow passages 101, which are open at upper and lower ends, together with the plurality of heat exchange boxes 100. This allows the fluid to be directed and focused by the cover plate 400, and thus the fluid is forced to pass through the heat exchange channel 101.

Specifically, the cover plate 400 may be provided with an evacuation port 410 for evacuating the heat exchange pipe 200.

Optionally, the thermal storage material is a phase change material. Thus, the heat absorption and release effects of the heat storage material can be ensured, and the heat exchange effect of the heat storage material is improved.

Further, the heat storage material is a hydrated salt phase change material. This not only makes it possible to provide the heat storage material with good heat absorption and release effects, but also reduces the cost of the heat storage material.

Specifically, the minimum distance between every two adjacent flow channel fins 300 in each heat exchange flow channel 101 is equal to or greater than 15 mm. This may facilitate smooth passage of fluid between the two flow channel fins 300.

Specifically, as shown in fig. 1 to 6, a plurality of heat exchange boxes 100 are arranged in the thickness direction of the heat exchange boxes 100. This may facilitate an increase in the contact area between the fluid in the heat exchange flow channel 101 and the heat exchange tank 100.

The water inlet 201 and the water outlet 202 of the heat exchange pipe 200 are both located on the same surface of the heat exchange device 10. Specifically, the water inlet 201 and the water outlet 202 of the heat exchange pipe 200 may be both located at the front surface of the heat exchange device 10. This may facilitate connection of the water inlet 201 and the water outlet 202 to other pipes. Pipe joints may be connected to the water inlet 201 and the water outlet 202.

The plurality of penetration segments 210 and the at least one connection segment 220 may be connected by welding, and the plurality of heat exchange boxes 100 and the plurality of flow path fins 300 may be connected by welding. The plurality of heat exchange boxes 100 and the two cover plates 400 may be connected by welding. Therefore, the connection strength can be improved, the structural stability and the structural strength are ensured, and the heat exchange effect of the joint can be improved.

The heat exchange tank 100 may be provided with an injection port 110 for injecting the heat storage material into the heat exchange tank 100. This can facilitate the injection of the heat storage material into the heat exchange tank 100. Further, the heat storage material may be injected through the injection port 110 after the heat exchange box 100 is connected to the heat exchange tube 200.

The heat exchange box 100 may include a body part 120 and a cover part 130. The body portion 120 and the cover portion 130 are connected by welding. This may facilitate the manufacture of the heat exchange box 100. The cover parts 130 at both ends of the heat exchange device 10 may have a burring.

The heat exchange device 10 can be used for recovering waste heat of flue gas of the gas water heater, the heat exchange tube 200 is connected with a water channel of the gas water heater, and the heat exchange flow channel 101 is used for the flue gas of the gas water heater to pass through.

The heat exchange box 100, the runner fins 300 and the cover plate 400 are all made of stainless steel plates with the thickness of more than or equal to 0.8 mm. The heat exchange tube 200 and the tube fin 230 are both copper pieces and have a thickness of 0.5 mm or more.

The heat exchange boxes 100 may be five.

Other constructions and operations of the heat exchange device 10 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 utility model. In this specification, the schematic representations of the terms used above 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 utility model 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 utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat exchange apparatus, comprising:

the heat exchange device comprises a plurality of heat exchange boxes, a heat storage material is filled in each heat exchange box, the heat exchange boxes are arranged at intervals, and a heat exchange flow channel is defined between every two adjacent heat exchange boxes;

the heat exchange tubes penetrate through the heat exchange boxes, and the portions, matched in the heat exchange boxes, of the heat exchange tubes are provided with tube fins.

2. The heat exchange device of claim 1, wherein the tube fin extends in an axial direction of the heat exchange tube.

3. The heat exchange device of claim 1, wherein the tube fin is plural and arranged at intervals along a circumferential direction of the heat exchange tube.

4. The heat exchange device according to claim 1, wherein a flow channel fin is connected between each adjacent two of the heat exchange boxes.

5. The heat exchange device of claim 4, wherein the flow channel fins are zigzag-shaped in cross section perpendicular to the thickness direction of the heat exchange box.

6. The heat exchange device of claim 4, wherein a plurality of the flow channel fins are arranged at intervals between every two adjacent heat exchange boxes.

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

the heat exchange box comprises a plurality of heat exchange boxes, a plurality of penetrating sections and a plurality of heat exchange pipes, wherein each penetrating section penetrates through the plurality of heat exchange boxes along the thickness direction of the heat exchange boxes;

and each connecting section is respectively connected with the two penetrating sections.

8. The heat exchange device according to claim 1, further comprising two cover plates respectively attached to opposite surfaces of each of the heat exchange boxes.

9. The heat exchange apparatus according to claim 1, wherein the heat storage material is a phase change material.

10. The heat exchange apparatus according to claim 9, wherein the heat storage material is a hydrated salt phase change material.

11. The heat exchange device of claim 6, wherein the minimum distance between every two adjacent flow channel fins in each heat exchange flow channel is greater than or equal to 15 mm.