CN220552342U - Guard board and medium-large fin heat exchanger - Google Patents

Abstract

The application relates to a guard plate and a medium-large fin heat exchanger, wherein the guard plate comprises a plurality of plate bodies which are mutually separated; the two adjacent plate bodies are set to be a first plate body and a second plate body, a first butt joint surface is formed on the first plate body, a second butt joint surface is formed on the second plate body, the second butt joint surface is matched with the first butt joint surface, and the first butt joint surface is in butt joint with the second butt joint surface and is connected in a welding mode, so that the first plate body is fixed to the second plate body. The utility model has the advantages that: and after the two adjacent plate bodies are welded, seamless butt joint is formed, air leakage at the joint of the guard plates is avoided, and the cost of the guard plates is lower.

Description

Guard board and medium-large fin heat exchanger

Technical Field

The application relates to the technical field of heat exchange equipment, in particular to a guard plate and a medium-large fin heat exchanger.

Background

In medium-and large-sized fin heat exchangers, the length of the guard plate is usually relatively long, and the design length of the guard plate can even exceed the length of a plate body made of sheet metal materials used for manufacturing the guard plate. In general, in order to make the length of the plate body meet the design length of the guard plate, an additional connecting plate is overlapped on two adjacent plate bodies, and the connecting plate is fixed between the two adjacent plate bodies by rivets, so that the length of the plate body is prolonged, and a plurality of plate bodies are spliced into one guard plate.

However, the rivet is adopted to fix the connection mode of the connecting plate and the two adjacent plate bodies, so that a gap is formed at the splicing position of the guard plate, the air leakage phenomenon exists, and the cost of the guard plate is high.

Disclosure of Invention

Accordingly, it is necessary to provide a shield plate and a medium-to-large-sized fin heat exchanger which are free from air leakage and have a lower cost.

In order to solve the technical problems, the application provides the following technical scheme:

the guard board comprises a plurality of board bodies which are arranged in a mutually separated mode;

the two adjacent plate bodies are set to be a first plate body and a second plate body, a first butt joint surface is formed on the first plate body, a second butt joint surface is formed on the second plate body, the second butt joint surface is matched with the first butt joint surface, and the first butt joint surface is in butt joint with the second butt joint surface and connected in a welding mode, so that the first plate body is fixed on the second plate body.

It can be understood that the first butt joint face and the second butt joint face are fixedly connected in a welding mode, so that two adjacent plate bodies are welded and fixed after butt joint, a complete guard plate is formed by splicing a plurality of separated plate bodies, seamless butt joint is formed after welding the two adjacent plate bodies, air leakage at the splicing position of the guard plate is avoided, and the cost of the guard plate is lower.

In one embodiment, the first abutting surface is provided with a step surface, and a preset angle P is formed between the extending direction of the step surface and the width direction of the first plate body, wherein 0 degrees are less than or equal to 90 degrees.

It can be understood that the preset angle P between the extending direction of the step surface and the width direction of the first plate body meets the requirement of 0 DEG & lt P & lt 90 DEG, so that a zigzag structure is formed on the first butt joint surface, the total area of the first butt joint surface is increased, the welding area between the first butt joint surface and the second butt joint surface is increased, and the connection strength of the first plate body and the second plate body after welding is improved.

In one embodiment, where p=90°.

It will be appreciated that p=90°, that is, the step surface is disposed perpendicular to the width direction of the first plate body, so that the processing and manufacturing of the first plate body are facilitated.

In one embodiment, the number of the step surfaces is at least one, and when the number of the step surfaces is plural, the plurality of step surfaces are arranged at intervals along the width direction of the first plate body.

It will be appreciated that by providing one or more stepped surfaces, the welding area between the first and second abutment surfaces is increased, thereby increasing the strength of the connection of the first and second plates.

In one embodiment, the first plate body and/or the second plate body are/is provided with a positioning protruding block, and the positioning protruding block is arranged between the first butt joint surface and the second butt joint surface to limit the butt joint between the first butt joint surface and the second butt joint surface.

It can be understood that the positioning lug is arranged to limit the interval between the first butt joint surface and the second butt joint surface when the first butt joint surface and the second butt joint surface are in butt joint, the interval is used as the width of the welding seam, the width of the welding seam between the first butt joint surface and the second butt joint surface after welding is convenient to control, and the welding effect is improved.

In one embodiment, when the positioning lug is arranged on the first plate body, the positioning lug is formed by partially protruding from the first abutting surface towards the direction of the second abutting surface;

and/or when the positioning lug is arranged on the second plate body, the positioning lug is formed by partially protruding the second butt joint surface towards the direction of the first butt joint surface.

It can be understood that the positioning protruding block is arranged on the first plate body, or the positioning protruding block is arranged on the second plate body, or the positioning protruding blocks are arranged on the first plate body and the second plate body, so that the limiting butt joint between the first butt joint surface and the second butt joint surface is realized.

In one embodiment, the number of the positioning protrusions is a plurality, and the positioning protrusions are arranged at intervals along the width direction of the first plate body.

It can be understood that by arranging a plurality of positioning convex blocks, the limit butt joint between the first butt joint surface and the second butt joint surface can be controlled conveniently and better, and the size precision of the butt joint is ensured.

In one embodiment, a spacing between the first and second mating surfaces is equal to a length of the positioning tab;

wherein, the protruding extension of the positioning convex block is set to be 1mm-2mm.

It is understood that the protruding length of the positioning lug is 1mm-2mm, so that the distance between the first butt joint surface and the second butt joint surface can be controlled within the range of 1mm-2mm, and the welding seam formed after welding can be controlled within the range of 1mm-2mm.

In one embodiment, the first plate body is further formed with a first flanging, and the first flanging is disposed on the outer side of the first butt joint surface; the second flange is matched with the first flange and is welded with the first flange, so that the first plate is fixed with the second plate.

It can be understood that through setting up first turn-ups and second turn-ups, increase the welding area between first plate body and the second plate body, be favorable to improving the joint strength after first plate body and the welding of second plate body.

The application also provides the following technical scheme:

a medium-and-large-sized fin heat exchanger comprising the shield of any one of the above.

It can be understood that the middle-large-sized fin heat exchanger with the guard plate is used, the spliced parts of the guard plates are in seamless butt joint in a welded mode, the risk of air leakage of the middle-large-sized fin heat exchanger is avoided, the heat exchange effect of the middle-large-sized fin heat exchanger is better, and the production cost is lower.

Due to the application of the scheme, compared with the prior art, the application has the following advantages:

the utility model provides a backplate and well large-scale fin heat exchanger of protection, backplate are through with first butt joint face and second butt joint face with welded mode fixed connection, make welded fastening between two adjacent plate bodies to splice the plate body of polylith separation and form a complete backplate, seamless butt joint after welding between two adjacent plate bodies avoids the air leakage phenomenon, and the cost of backplate is lower, makes the heat transfer effect of this well large-scale fin heat exchanger better.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a first board body and a second board body when the first board body and the second board body are in butt joint according to an embodiment of the present application.

Fig. 2 is an enlarged view at P of fig. 1.

Fig. 3 is a schematic structural diagram of a first board body and a second board body when the first board body and the second board body are in butt joint according to another embodiment of the present application.

Fig. 4 is an enlarged view of fig. 3 at Q.

Fig. 5 is a schematic diagram of a separated state of a first board body and a second board body according to an embodiment of the present application.

Fig. 6 is a schematic diagram of a first plate and a second plate separated according to another embodiment of the present application.

Fig. 7 is a schematic diagram of a welded first plate and second plate according to an embodiment of the present application.

Fig. 8 is a schematic diagram of a welded first plate and second plate according to another embodiment of the present application.

Reference numerals: 100. a guard board; 10. a first plate body; 11. a first mating surface; 111. a step surface; 112. a connection surface; 20. a second plate body; 21. a second abutment surface; 211. a step mating surface; 212. connecting the matching surfaces; 30. and positioning the protruding blocks.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

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

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

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact of the first feature with the second feature, or an indirect contact of the first feature with the second feature via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of this application 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 present application. The term "and/or" as used in the specification of this application includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 3, a protection plate 100 according to an embodiment of the present application includes a plurality of plate bodies, where the plurality of plate bodies are separated from each other. Wherein, two adjacent plate bodies are set as first plate body 10 and second plate body 20, be formed with first butt joint face 11 on the first plate body 10, be formed with second butt joint face 21 on the second plate body 20, second butt joint face 21 matches in first butt joint face 11 setting for the shape of first butt joint face 11 and the shape of second butt joint face 21 can mutually support, so that first butt joint face 11 and second butt joint face 21 dock the back with welded mode fixed connection, with this fixed connection between realizing first plate body 10 and the second plate body 20. So that a plurality of separately arranged plate bodies are spliced to form a complete guard plate 100.

It should be noted that, in the middle-large-sized fin heat exchanger at present, an additional plate is generally overlapped on two adjacent plate bodies, and the plate is fixed with the two adjacent plate bodies by rivets, so that a plurality of plate bodies are connected into a complete guard plate 100. However, the rivet is raised 1mm-2mm on the inner side of the guard plate 100 by adopting the splicing mode, the installation of the inner side position of the subsequent guard plate 100 is possibly affected, the strength of the splicing mode is low, the guard plate 100 is easy to deform in the lifting stress process, meanwhile, gaps exist at the splicing position, the risk of air leakage exists, the heat exchange effect of the medium-large fin heat exchanger is easy to influence, and the cost is higher.

And this application carries out fixed connection with welded mode between two adjacent backplate, does not have the gap after the welding between first butt joint face 11 and the second butt joint face 21, has avoided the air leakage problem, and the scheme of this application does not need to use rivet and fishplate bar moreover, and the cost is reduced has also avoided the protruding influence that causes the installation of rivet simultaneously.

As shown in fig. 5 and 6, in an embodiment, the first abutting surface 11 has a step surface 111 and a connection surface 112, the step surface 111 and the connection surface 112 are both in a planar structure and are connected to each other, meanwhile, the second abutting surface 21 has a step mating surface 211 and a connection mating surface 212 thereon, and the shape of the step mating surface 211 is matched with the shape of the step surface 111, and the shape of the connection mating surface 212 is matched with the shape of the connection surface 112, so that the first abutting surface 11 and the second abutting surface 21 form an abutting joint.

Wherein a predetermined angle P is formed between the extending direction of the step surface 111 and the width direction of the first plate body 10, wherein 0 DEG < P.ltoreq.90 deg. In this way, the first butt joint surface 11 is formed with a zigzag structure, so that the whole area of the first butt joint surface 11 is increased, and the welding area between the first butt joint surface 11 and the second butt joint surface 21 is increased, which is beneficial to improving the connection strength of the first board body 10 and the second board body 20 after welding.

Preferably, the predetermined angle p=90° formed between the extending direction of the step surface 111 and the width direction of the first plate body 10. That is, the step surface 111 is provided perpendicular to the width direction of the first plate body 10, facilitating the processing and manufacturing of the step surface 111. Of course, in other embodiments, the preset angle P may be 20 °, 30 °, 40 °, 45 °, 50 °, 60 °, 70 °, 80 °, etc., which is not limited to the above values.

As shown in fig. 1, 5 and 7, in one embodiment, the number of the step surfaces 111 is one, and the number of the connection surfaces 112 is two, wherein the extending direction of the step surfaces 111 is perpendicular to the width direction of the first board body 10, and the extending directions of the two connection surfaces 112 are parallel to the width direction of the first board body 10, so that the first butt surface 11 of the Z shape is formed by connecting one step surface 111 with the two connection surfaces 112. The shapes and the numbers of the step matching surfaces 211 and the connection matching surfaces 212 in the second butt joint surface 21 are respectively matched with the step surface 111 and the connection surface 112, so that a specific embodiment of the first butt joint surface 11 and the second butt joint surface 21 is realized, the welding area of the first butt joint surface 11 and the second butt joint surface 21 is increased, and the connection strength of the first board body 10 and the second board body 20 after welding is improved.

As shown in fig. 3, 6 and 8, in another embodiment, the number of the step surfaces 111 is two, the number of the connection surfaces 112 is three, and the two step surfaces 111 are arranged at intervals along the width direction of the first plate body 10 and are connected to the connection surfaces 112. The extending direction of the two step surfaces 111 is perpendicular to the width direction of the first board body 10, and the extending direction of the three connecting surfaces 112 is parallel to the width direction of the first board body 10, so that the two step surfaces 111 and the three connecting surfaces 112 are connected with each other and form a first butt joint surface 11 of an arch shape. Meanwhile, the shape of the second butt joint surface 21 is matched with that of the first butt joint surface 11, so that the first butt joint surface 11 and the second butt joint surface 21 can be in butt joint fit, a specific embodiment of the first butt joint surface 11 and the second butt joint surface 21 is realized, the welding area of the first butt joint surface 11 and the second butt joint surface 21 is increased, and the connection strength of the first plate body 10 and the second plate body 20 after welding is improved.

The number of the step surfaces 111 may be three, four, etc. as well, and the plurality of step surfaces 111 are arranged at intervals along the width direction of the first plate body 10 and are connected by the connection surface 112, which is not described herein.

In addition, in other embodiments, the first abutting surface 11 may also be configured as an arc structure, where a plurality of arc protrusions are formed on the first abutting surface 11, and the plurality of arc protrusions are sequentially arranged along the width direction of the first board body 10, and meanwhile, a plurality of arc grooves are provided on the second board body 20, and the shapes and the numbers of the arc protrusions and the arc grooves are all matched, so that the second abutting surface 21 can be in abutting engagement with the first abutting surface 11, thereby realizing a specific embodiment of the first abutting surface 11 and the second abutting surface 21.

In an embodiment, the first plate body 10 and the second plate body 20 are both made of sheet metal parts, so that the first plate body 10 and the second plate body 20 are manufactured conveniently, and the surface of the sheet metal parts is polished after welding, so that the overall appearance quality of the guard plate 100 is ensured.

In an embodiment, the first board body 10 is provided with a positioning bump 30, and the positioning bump 30 is disposed between the first butt joint surface 11 and the second butt joint surface 21, so as to limit the distance between the first butt joint surface 11 and the second butt joint surface 21 during butt joint, so as to control the width of a welding seam formed by welding between the first butt joint surface 11 and the second butt joint surface 21, and improve the welding effect.

As shown in fig. 2 and 4, in the present embodiment, the positioning bump 30 is disposed on the first board body 10, and the positioning bump 30 has a substantially rectangular structure, and is formed by partially protruding from the first abutting surface 11 toward the second abutting surface 21, so as to control the width of the welding seam between the first abutting surface 11 and the second abutting surface 21, and avoid the distortion of the welding seam from affecting the abutting precision between the first board body 10 and the second board body 20.

In another embodiment, the positioning bump 30 is disposed on the second board 20, and the positioning bump 30 is formed by partially protruding from the second abutting surface 21 toward the first abutting surface 11, so as to control the width of the welded seam formed after welding between the first abutting surface 11 and the second abutting surface 21, and ensure the dimensional accuracy of the abutting joint between the first board 10 and the second board 20.

In other embodiments, the positioning protrusions 30 may be disposed in both the first plate body 10 and the second plate body 20, and the positioning protrusions 30 formed on the first plate body 10 and the positioning protrusions 30 formed on the second plate body 20 may be disposed in a staggered manner, so as to control the width of the welded seam formed after welding between the first butt joint surface 11 and the second butt joint surface 21.

In an embodiment, the number of the positioning protrusions 30 is multiple, and the positioning protrusions 30 are arranged at intervals along the width direction of the first board body 10, so that the limit butt joint between the first butt joint surface 11 and the second butt joint surface 21 can be controlled better, and the dimensional accuracy of the butt joint is ensured.

Preferably, the number of positioning projections 30 is at least three. Specifically, the number of the positioning projections 30 may be set to four or five.

Of course, in other embodiments, the number of the positioning bumps 30 may be three or six, which is not limited herein.

Without limitation, in other embodiments, the number of positioning bumps 30 may be three or six, which is not limited herein.

In an embodiment, the distance between the first abutting surface 11 and the second abutting surface 21 is equal to the length of the positioning bump 30. The protruding length of the positioning bump 30 is set to be 1mm-2mm, so that the distance between the first butt joint surface 11 and the second butt joint surface 21 can be limited to be 1mm-2mm, and the welding seam formed after the first plate body 10 and the second plate body 20 are welded can be controlled to be 1mm-2mm. Specifically, the protruding length of the positioning bump 30 may be 1mm, 1.2mm, 1.4mm,1.5mm, 1.6mm, 1.8mm, 2mm, etc., and is not limited to the above values.

In an embodiment, the first board 10 is further formed with a first flange (not shown), the first flange is disposed on the outer side of the first butt joint surface 11, the first board 10 is turned outwards to form the first flange, the second board 20 is further formed with a second flange (not shown), the second flange is turned outwards to form the second board 20, the second flange and the second flange are matched, the first flange and the second flange can be matched and welded, the welding area between the first board 10 and the second board 20 is increased, and the connection strength of the first board 10 and the second board 20 after welding is improved.

The present application also provides a medium-large fin heat exchanger (not shown) comprising the shield 100 of any one of the above. The middle-large-sized fin heat exchanger with the guard plate 100 is lower in production cost, high in structural strength of the guard plate 100, difficult to deform, easy to support the whole weight of the middle-large-sized fin heat exchanger, and capable of avoiding the risk of air leakage caused by the middle-large-sized fin heat exchanger due to the fact that adjacent plate bodies are in seamless butt joint in a welded mode, and better in heat exchange effect.

In this embodiment, the guard plate 100 is formed by splicing two plate bodies, namely, the first plate body 10 and the second plate body 20. In other embodiments, the guard plate 100 may be formed by splicing three or four plates, and may be specifically set according to practical situations.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.

Claims (10)

1. The guard board is applied to the medium-large-sized fin heat exchanger and is characterized by comprising a plurality of board bodies which are arranged in a mutually separated mode;

the two adjacent plate bodies are set to be a first plate body (10) and a second plate body (20), a first butt joint surface (11) is formed on the first plate body (10), a second butt joint surface (21) is formed on the second plate body (20), the second butt joint surface (21) is matched with the first butt joint surface (11) to be arranged, and the first butt joint surface (11) is in butt joint with the second butt joint surface (21) and connected in a welding mode, so that the first plate body (10) is fixed on the second plate body (20).

2. The sheeting according to claim 1, characterized in that the first abutment surface (11) has a stepped surface (111), wherein a predetermined angle P is formed between the direction of extension of the stepped surface (111) and the width direction of the first sheet body (10), wherein 0 ° < p+.ltoreq.90 °.

3. The sheeting of claim 2, wherein P = 90 °.

4. The apron according to claim 2, characterized in that the number of the step surfaces (111) is at least one, and when the number of the step surfaces (111) is plural, the plurality of step surfaces (111) are arranged at intervals along the width direction of the first plate body (10).

5. The guard plate according to claim 1, characterized in that a positioning protrusion (30) is provided on the first plate body (10) and/or the second plate body (20), and the positioning protrusion (30) is disposed between the first abutting surface (11) and the second abutting surface (21) so as to limit abutting between the first abutting surface (11) and the second abutting surface (21).

6. The guard plate according to claim 5, characterized in that the positioning projection (30) is formed by the first abutment surface (11) projecting and protruding from a portion of the first abutment surface (10) in the direction of the second abutment surface (21) when the positioning projection (30) is arranged on the first plate body (10);

and/or, when the positioning lug (30) is arranged on the second plate body (20), the positioning lug (30) is formed by partially protruding the second abutting surface (21) towards the direction of the first abutting surface (11).

7. The sheeting of claim 5, wherein the number of the positioning projections (30) is plural, and the positioning projections (30) are arranged at intervals along the width direction of the first sheet body (10).

8. The apron according to claim 6, characterized in that the distance between the first abutment surface (11) and the second abutment surface (21) is equal to the length of the positioning projection (30);

wherein the protruding length of the positioning convex blocks (30) is set to be 1mm-2mm.

9. The guard plate according to claim 1, characterized in that the first plate body (10) is further formed with a first flange, which is arranged outside the first abutment surface (11); the second plate body (20) is also provided with a second flanging, and the second flanging is matched with the first flanging and is welded and connected with the first flanging, so that the first plate body (10) and the second plate body (20) are fixed.

10. A medium and large fin heat exchanger, characterized by comprising a shield (100) according to any one of claims 1-9.