CN217979921U - Heat exchanger - Google Patents

Abstract

The utility model relates to a refrigerating system technical field especially relates to the heat exchanger. A heat exchanger comprises a heat exchange plate and a heat exchange tube, wherein the heat exchange tube is arranged in the heat exchange plate in a penetrating mode, so that part of the heat exchange tube is located in the heat exchange plate; wherein, a heat exchange medium flows into the heat exchange plates through the heat exchange pipes and exchanges heat with the heat exchange plates; the heat exchange plate comprises a main body, at least part of the heat exchange tubes are positioned in the main body, and the thickness H of the main body is 3-20 mm. The heat exchange plate has the advantages that the thickness of the main body is reasonably designed, the phenomenon that the material consumption is wasted due to overlarge thickness of the main body and the cost is increased is avoided, the problem that the heat transfer efficiency is poor is avoided, and the phenomenon that the heat exchange plate is easily broken due to the fact that the heat transfer plate is too small in thickness, uneven in heat transfer and insufficient in strength is also avoided.

Description

Heat exchanger

Technical Field

The utility model relates to a refrigerating system technical field especially relates to the heat exchanger.

Background

In the heat transfer system, the heat exchanger is as crucial partly for carry out the heat exchange with the medium, thereby play the effect of heat transfer, so the heat exchange efficiency of heat exchanger awaits for promoting urgently.

In the existing heat exchanger, the main body thickness of the heat exchange plate is generally set according to the working environment and the size of an installation area, but the main body thickness of the heat exchange plate is not greatly related to the performance of the heat exchange plate, when the main body thickness of the heat exchange plate is too large, the problem of poor heat exchange efficiency can occur, more materials are consumed, and the cost is higher; when the thickness of the main body of the heat exchange plate is too small, the problems of uneven heat transfer, insufficient strength, easy breakage and the like exist.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a heat exchanger to above-mentioned technical problem, technical scheme as follows:

a heat exchanger comprises a heat exchange plate and a heat exchange tube, wherein the heat exchange tube is arranged in the heat exchange plate in a penetrating mode, so that part of the heat exchange tube is located in the heat exchange plate; wherein, a heat exchange medium flows into the heat exchange plates through the heat exchange pipes and exchanges heat with the heat exchange plates;

the heat exchange plate comprises a main body, at least part of the heat exchange tubes are positioned in the main body, and the thickness H of the main body is 3-20 mm.

So set up, rationally designed the thickness of main part, prevent that the thickness of main part is too big and extravagant consumptive material, raise the cost, avoid appearing the not good problem of heat transfer efficiency, also prevent the main part thickness undersize of heat transfer board, heat transfer inequality and intensity are not enough and break easily.

In one embodiment, the thickness H of the body is 5mm to 8mm.

So set up, compromise the intensity of consumptive material cost and heat transfer board simultaneously.

In one embodiment, the heat exchange plate is provided with a plurality of heat exchange surfaces, the heat exchange tubes located inside the heat exchange plate are respectively arranged at intervals with the plurality of heat exchange surfaces, the minimum value of the distances between the heat exchange tubes located inside the heat exchange plate and the plurality of heat exchange surfaces is h, and h is greater than or equal to 2mm and less than or equal to 8mm.

Due to the arrangement, the strength of the heat exchange plate is influenced when h is less than 2mm, so that the heat transfer is uneven, and the problem of electrostatic breakdown is easy to occur; when h is larger than 8mm, the problem of low heat transfer efficiency caused by overlong distance between the heat exchange tube and the heat exchange surface is solved, so that h is set to be more than or equal to 2mm and less than or equal to 8mm, and the two conditions are avoided.

In one embodiment, the cross section of the heat exchange tube is circular, the inner diameter of the heat exchange tube is d, and the value of h satisfies the requirement

So set up, H can be according to the thickness H of main part and the width d adaptability adjustment of heat exchange tube for distance between heat exchange tube and the heat transfer surface keeps higher heat transfer efficiency and good structural strength all the time.

In one embodiment, the heat exchange plate and the heat exchange tube are connected through a tube expansion process.

So set up, the cost of expand tube technology is low, easy operation.

In one embodiment, the heat exchange plate comprises a boss connected to the body, and at least a portion of the heat exchange tube is located within the boss.

So set up, the arch can strengthen the intensity of heat transfer board under the less condition of consumptive material.

In one embodiment, the shortest distance X between the heat exchange tube and the outer side of the boss in the width direction of the body is greater than 1.4mm.

Because the heat exchanger is in the course of working, the medium can produce the stress load to the pipe wall of heat exchange tube when circulating, so set up and guarantee the heat exchange tube and keep certain distance with protruding lateral surface to prevent to cause protruding deformation even damage because of stress concentration.

In one embodiment, the protrusion extends from one end to the other end of the body in the length direction.

So set up, the arch can act on whole heat transfer board to the enhancement effect of structure.

In one embodiment, the heat exchanger comprises a plurality of bulges, the bulges are respectively connected with the main body, and a plurality of heat exchange tubes are correspondingly arranged between the bulges and the main body in a penetrating manner.

So set up, have many heat exchange tubes simultaneous workings in the heat transfer board, can strengthen the holistic heat exchange efficiency of heat exchanger.

In one embodiment, the heat exchanger plate (10) is made of a breakdown-resistant insulating material.

So set up, effectively avoid appearing the problem of electrostatic breakdown.

Compared with the prior art, the utility model reasonably designs the thickness of the main body, prevents the material waste and cost increase caused by overlarge thickness of the main body, avoids the problem of poor heat transfer efficiency, and also prevents the problems of easily breaking caused by the over-small thickness, uneven heat transfer and insufficient strength of the main body of the heat exchange plate; in addition, the minimum value of the distances between the heat exchange tube and the heat exchange surfaces is specified, so that the problem that the heat transfer effect is poor due to the overlong distance is solved, and the problem that the electrostatic breakdown is caused due to the overlong distance is solved.

Drawings

Fig. 1 is a perspective view of a first embodiment of the present invention;

fig. 2 is a cross-sectional view of a first embodiment of the present invention;

fig. 3 is a cross-sectional view of a second embodiment of the present invention;

fig. 4 is a sectional view of a heat exchange tube of a second embodiment of the present invention, the cross section of which is waist-shaped.

The symbols in the drawings represent the following meanings:

100. a heat exchanger; 10. a heat exchange plate; 11. a main body; 12. a protrusion; 13. a heat exchange surface; 20. a heat exchange pipe; 21. an inlet; 22. and (7) an outlet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The use of the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like in the description of the present application is for purposes of illustration only and is not intended to represent the only embodiment.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate 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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of this application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, the present invention provides a heat exchanger 100, which is applied to a heat exchange system, wherein the heat exchanger 100 is used as a part of a key for exchanging heat with a medium, so as to perform a heat exchange function, and therefore the heat exchange efficiency of the heat exchanger 100 needs to be improved.

A heat exchanger 100 comprises a heat exchange plate 10 and a heat exchange tube 20, wherein the heat exchange tube 20 is arranged in the heat exchange plate 10 in a penetrating way, so that part of the heat exchange tube 20 is positioned in the heat exchange plate 10; wherein, the heat exchange medium flows into the heat exchange plate 10 through the heat exchange tube 20 and exchanges heat with the heat exchange plate 10; the heat exchange plate 10 comprises a main body 11, at least part of the heat exchange tubes 20 are positioned in the main body 11, and the thickness H of the main body 11 is 3mm-20mm.

So set up, rationally designed the thickness of main part 11, prevent that the too big and extravagant consumptive material of thickness of main part 11, raise the cost, avoid appearing the not good problem of heat transfer efficiency, also prevent the main part 11 thickness undersize of heat transfer board 10, heat transfer is uneven and intensity is not enough and break easily.

Further, the thickness H of the main body 11 is 5mm-8mm, and the cost of consumables and the strength of the heat exchange plate 10 are considered at the same time.

The cross section of the heat exchange tube 20 can be circular, oval, square, diamond or kidney-shaped, and is not limited to the circular heat exchange tube 20, so that the shape of the heat exchange tube 20 can be adjusted according to the working environment to adapt to the working conditions.

The heat exchange plate 10 is made of a breakdown-resistant insulating material, and thus the electrostatic breakdown problem is effectively avoided. So that the distance between the heat exchange tube 20 and the plurality of heat exchange surfaces 13 is close to 0mm without electrostatic breakdown.

Example one

Referring to fig. 1, the heat exchange plate 10 and the heat exchange tube 20 are connected by a tube expansion process, which has low cost and simple operation.

The heat exchange plate 10 is provided with a plurality of heat exchange surfaces 13, the heat exchange tubes 20 positioned inside the heat exchange plate 10 are respectively arranged at intervals with the heat exchange surfaces 13, wherein the minimum value of the distances between the heat exchange tubes 20 positioned inside the heat exchange plate 10 and the heat exchange surfaces 13 is h, and h is not less than 2mm and not more than 8mm.

The strength and the heat transfer uniformity of the heat exchange plate 10 are affected when h is less than 2mm, and the problem of electrostatic breakdown is easy to occur; when h is larger than 8mm, the problem of low heat transfer efficiency is caused because the distance between the heat exchange tube 20 and the heat exchange surface 13 is too long, so that h is set to be more than or equal to 2mm and less than or equal to 8mm, and the two situations are avoided.

Preferably, the cross section of the heat exchange tube 20 is circular, the inner diameter of the heat exchange tube 20 is d, and the value of h satisfies

H can be adaptively adjusted according to the thickness H of the body 11 and the width d of the heat exchange tube 20, so that the distance between the heat exchange tube 20 and the heat exchange surface 13 always maintains high heat transfer efficiency and good structural strength.

The heat exchange plate 10 includes bosses 12, the bosses 12 are connected to the body 11, and at least a portion of the heat exchange pipe 20 is located in the bosses 12. The bosses 12 can enhance the strength of the heat exchange plate 10 with less material consumption.

Referring to fig. 2, the shortest distance X between the heat exchange tube 20 and the outer side surface of the protrusion 12 in the width direction of the body 11 is greater than 1.4mm.

Because the medium can generate stress load to the pipe wall of the heat exchange pipe 20 when circulating in the working process of the heat exchanger 100, the arrangement ensures that the heat exchange pipe 20 keeps a certain distance from the outer side surface of the bulge 12, thereby preventing the bulge 12 from deforming and even being damaged due to stress concentration.

The projection 12 extends from one end to the other end in the longitudinal direction of the body 11. So configured, the reinforcing effect of the protrusions 12 on the structure can act on the whole heat exchange plate 10.

Further, the heat exchanger 100 includes a plurality of protrusions 12, the plurality of protrusions 12 are respectively connected to the main body 11, and a plurality of heat exchange tubes 20 are correspondingly inserted between the plurality of protrusions 12 and the main body 11.

So set up, have many heat exchange tubes 20 simultaneous workings in the heat transfer board 10, can strengthen the holistic heat exchange efficiency of heat exchanger 100.

In this embodiment, two protrusions 12 are disposed on the heat exchange plate 10, two heat exchange tubes 20 penetrate through the heat exchange plate 10, one ends of the two heat exchange tubes 20 are respectively used as an inlet 21 and an outlet 22 of a medium, and the other ends of the two heat exchange tubes 20 are communicated with each other, so that the medium can flow in from the inlet 21, and after passing through the two heat exchange tubes 20, the medium exchanges heat with the heat exchange surface 13 of the heat exchange plate 10 twice and finally flows out from the outlet 22.

In other embodiments, a plurality of heat exchange tubes 20, for example, 3, 4, 5, and 6, may also be worn in the heat exchange plate 10, and the number of the heat exchange tubes 20 may be adaptively adjusted according to the requirement of the heat exchange efficiency.

Example two

Referring to fig. 3-4, compared to the first embodiment, the heat exchange plate 10 of the second embodiment is not provided with the protrusions 12, so that the processing difficulty and the production cost are reduced.

The whole thickness of the heat exchange plate 10 is the thickness of the main body 11, and the thickness H of the main body 11 is 3mm-20mm. Preferably, the thickness H of the body 11 is between 5mm and 8mm. Prevent too big and extravagant consumptive material of thickness of main part 11, raise the cost, avoid appearing the not good problem of heat transfer efficiency, also prevent the main part 11 thickness undersize of heat transfer board 10, the not enough and easy rupture of intensity.

The remaining structure of the second embodiment is similar to that of the first embodiment, and is not described herein again.

EXAMPLE III

Different from the first embodiment and the second embodiment, a part of the heat exchange tube 20 in the third embodiment is embedded in one side of the heat exchange plate 10, and one side of the heat exchange tube 20, which is far away from the heat exchange plate 10, is exposed out of the heat exchange plate 10 and directly contacts with the outside air, so that the efficiency of heat exchange with the air is further improved.

Compared with the prior art, the utility model reasonably designs the thickness of the main body 11, prevents the waste of consumables and cost due to overlarge thickness of the main body 11, avoids the problem of poor heat transfer efficiency, and also prevents the main body 11 of the heat exchange plate 10 from being easily broken due to the over-small thickness, uneven heat transfer and insufficient strength; in addition, the minimum distance between the heat exchange tube 20 and the plurality of heat exchange surfaces 13 is specified, so that the problem that the heat transfer effect is poor due to too long distance is prevented, and the problem that the electrostatic breakdown is caused due to too short distance is prevented.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A heat exchanger is characterized by comprising a heat exchange plate (10) and a heat exchange tube (20), wherein the heat exchange tube (20) is arranged in the heat exchange plate (10) in a penetrating manner, so that part of the heat exchange tube (20) is positioned in the heat exchange plate (10); wherein a heat exchange medium flows into the heat exchange plates (10) through the heat exchange tubes (20) and exchanges heat with the heat exchange plates (10);

the heat exchange plate (10) comprises a main body (11), at least part of the heat exchange tubes (20) are located in the main body (11), and the thickness H of the main body (11) is 3-20 mm.

2. The heat exchanger according to claim 1, characterized in that the thickness H of the body (11) is between 5mm and 8mm.

3. The heat exchanger according to claim 1, wherein the heat exchanger plate (10) has a plurality of heat exchanger surfaces (13), and the heat exchanger tubes (20) located inside the heat exchanger plate (10) are spaced apart from the plurality of heat exchanger surfaces (13), respectively, wherein the minimum value of the distances between the heat exchanger tubes (20) located inside the heat exchanger plate (10) and the plurality of heat exchanger surfaces (13) is h, and h is 2mm ≤ h ≤ 8mm.

4. A heat exchanger according to claim 3, characterised in that the cross-section of the heat exchanger tube (20) is circular, the inner diameter of the heat exchanger tube (20) is d, and h has a value satisfying

5. The heat exchanger according to claim 1, wherein the heat exchange plates (10) and the heat exchange tubes (20) are connected by a tube expansion process.

6. Heat exchanger according to claim 5, wherein the heat exchanger plate (10) comprises bosses (12), the bosses (12) being connected to the body (11), at least part of the heat exchanger tubes (20) being located within the bosses (12).

7. The heat exchanger according to claim 6, wherein the shortest distance X between the heat exchange tube (20) and the outer side of the protrusion (12) in the width direction of the body (11) is greater than 1.4mm.

8. The heat exchanger according to claim 6, characterized in that the protrusion (12) extends from one end to the other end of the body (11) in the length direction.

9. The heat exchanger according to claim 1, characterized in that the heat exchanger comprises a plurality of protrusions (12), the plurality of protrusions (12) are respectively connected with the main body (11), and a plurality of heat exchange tubes (20) are correspondingly arranged between the plurality of protrusions (12) and the main body (11).

10. The heat exchanger according to claim 1, characterized in that the heat exchanger plates (10) are made of a breakdown-resistant insulating material.

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