Brazed plate heat exchanger easy to connect
By setting specific structures in the brazed plate heat exchanger, such as through grooves and card blocks, the problem of inconvenient positioning of the heat exchange plate in the prior art is solved, and the effect of rapid and accurate positioning and easy structure connection is achieved.
Patent Information
- Application Number
- CN202421590480.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-08
AI Technical Summary
Existing brazed plate heat exchangers are not convenient to limit the heat exchange plate between the end plate and the bottom plate, and cannot quickly and accurately locate the pure copper foil.
By providing structures such as through grooves, connection grooves, first heat exchange plates, first card slots, first card blocks, second heat exchange plates, second card slots and second card blocks, rapid and accurate positioning of pure copper foil, first heat exchange plates and second heat exchange plates is achieved.
It makes the structure of the brazed plate heat exchanger easy to connect, and improves the positioning accuracy and connection convenience of the heat exchange plate.
Smart Images
Figure CN222865668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of brazed plate heat exchangers, in particular to an easily connected brazed plate heat exchanger. Background Art
[0002] The easy-to-connect brazed plate heat exchanger is made by pressing stainless steel sheets into a herringbone corrugated shape, placing a pure copper foil (99.9%) between every two plates, and welding them in a vacuum brazing furnace at one time after assembly. In application, the hot side and cold side media alternately enter between the plates to achieve the purpose of heat exchange. The brazed plate heat exchanger has the characteristics of compact structure, light weight, small amount of stagnant liquid, durability, low fouling coefficient and flexible structure.
[0003] The common brazed plate heat exchanger is not convenient for limiting the heat exchange plates between the end plate and the bottom plate, is not convenient for fast and accurate positioning between the heat exchange plates, and cannot position the pure copper foil. Therefore, an easy-to-connect brazed plate heat exchanger is proposed to address the above problems. Utility Model Content
[0004] The utility model aims to provide an easy-to-connect brazed plate heat exchanger to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A brazed plate heat exchanger that is easy to connect, comprises an end plate, a pipe installed on the end plate, a pure copper foil sheet that is evenly arranged, and a bottom plate, wherein one side of the end plate is provided with a connecting groove that is arranged in a rectangular shape, a first clamping block is snap-connected to the inner side of the connecting groove, a first heat exchange plate is fixedly connected to the outer side of the first clamping block, a first clamping groove is provided on the top of the first heat exchange plate, a second clamping block is snap-connected to the inner side of the first clamping groove, a second heat exchange plate is fixedly connected to the outer side of the second clamping block, a second clamping groove is provided on the bottom of the second heat exchange plate, four third through holes with equal apertures are provided on the inner side of the second heat exchange plate, a baffle that can be fitted with the end plate is fixedly connected to the upper end surface of the bottom plate, four second through holes with equal apertures are provided on the inner side of the pure copper foil sheet, a through groove symmetrically arranged up and down is provided on the inner side of the pure copper foil sheet, and four first through holes with equal apertures are provided on the inner side of the first heat exchange plate.
[0007] Preferably, first damping pads are fixedly connected to both sides of the first clamping block, part of the first damping pads are engaged in the inner side of the connecting groove, and part of the first clamping block and the first damping pad are engaged in the second clamping groove through the relative bottom groove opened by the pure copper foil.
[0008] Preferably, both sides of the second clamping block are fixedly connected with second damping pads, and parts of the second clamping block and the second damping pad are engaged in through grooves at the opposite tops of the pure copper foil.
[0009] Preferably, the aperture size of the first through hole, the aperture size of the second through hole and the aperture size of the third through hole are all equal, and the first through hole, the second through hole and the third through hole are interconnected.
[0010] Preferably, the slot lengths of the connecting slot, the through slot, the first card slot and the second card slot are all equal.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] In the utility model, by providing a structure consisting of a through groove, a connecting groove, a first heat exchange plate, a first clamping groove, a first clamping block, a second heat exchange plate, a second clamping groove and a second clamping block, the pure copper foil, the first heat exchange plate and the second heat exchange plate can be quickly and accurately positioned, so that the structure in the brazed plate heat exchanger can be easily connected together. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;
[0015] Figure 3 This is a structural schematic diagram of the second heat exchange plate of the utility model;
[0016] Figure 4 This is a structural schematic diagram of the first heat exchange plate of the utility model;
[0017] Figure 5 This is a schematic diagram of the structure of the end plate of the utility model;
[0018] Figure 6 This is a schematic diagram of the structure of the bottom plate of the utility model;
[0019] Figure 7 This is the overall exploded view of the utility model;
[0020] Figure 8 This is a schematic diagram of the structure of the pure copper foil of the utility model.
[0021] In the figure: 1, end plate; 2, connecting pipe; 3, pure copper foil; 4, through groove; 5, connecting groove; 6, first heat exchange plate; 7, first slot; 8, first block; 9, first damping pad; 10, first through hole; 11, second heat exchange plate; 12, second slot; 13, second block; 14, second damping pad; 15, bottom plate; 16, baffle; 17, second through hole; 18, third through hole. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.
[0025] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0026] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0027] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0028] See also Figure 1-8 , the utility model provides a technical solution:
[0029] A brazed plate heat exchanger that is easy to connect, comprising an end plate 1, a pipe 2 installed on the end plate 1, a pure copper foil 3 evenly arranged and a bottom plate 15, a rectangular connecting groove 5 is provided on one side of the end plate 1, a first clamping block 8 is connected to the inner side of the connecting groove 5, a first heat exchange plate 6 is fixedly connected to the outer side of the first clamping block 8, a first clamping groove 7 is provided on the top of the first heat exchange plate 6, a second clamping block 13 is connected to the inner side of the first clamping groove 7, a second heat exchange plate 6 is fixedly connected to the outer side of the second clamping block 13, and a second heat exchange plate 6 is fixedly connected to the outer side of the second clamping block 13. The heat exchange plate 11, the second heat exchange plate 11 has a second slot 12 at the bottom, the second heat exchange plate 11 has four third through holes 18 with equal apertures on the inner side, the upper end surface of the bottom plate 15 is fixedly connected with a baffle 16 that can fit with the end plate 1, the inner side of the pure copper foil 3 has four second through holes 17 with equal apertures, the inner side of the pure copper foil 3 has a through groove 4 symmetrically arranged in the upper and lower directions, and the inner side of the first heat exchange plate 6 has four first through holes 10 with equal apertures.
[0030] Both sides of the first clamping block 8 are fixedly connected with the first damping pad 9, part of the first damping pad 9 is engaged with the inner side of the connecting groove 5, part of the first clamping block 8 and the first damping pad 9 penetrate the through groove 4 at the relative bottom opened by the pure copper foil 3 and are engaged in the second clamping groove 12. This arrangement enables the friction force on both sides of the first clamping block 8 to be enhanced by the first damping pad 9, so that the first clamping block 8 is not easy to fall off the through groove 4, the second clamping groove 12 and the connecting groove 5; both sides of the second clamping block 13 are fixedly connected with the second damping pad 14, part of the second clamping block 13 and the second damping pad 14 are engaged with the through groove 4 at the relative top opened by the pure copper foil 3, and this arrangement enables the friction force on both sides of the first clamping block 8 to be enhanced by the first damping pad 9, so that the first clamping block 8 is not easy to fall off the through groove 4, the second clamping groove 12 and the connecting groove 5. The friction force on both sides of the second clamping block 13 is enhanced, so that the second clamping block 13 is not easy to separate from the through groove 4 and the first clamping groove 7; the aperture size of the first through hole 10, the aperture size of the second through hole 17 and the aperture size of the third through hole 18 are all equal, and the first through hole 10, the second through hole 17 and the third through hole 18 are interconnected. This arrangement allows heat to pass through the first through hole 10, the second through hole 17 and the third through hole 18 evenly; the slot length size of the connecting groove 5, the slot length size of the through groove 4, the slot length size of the first clamping groove 7 and the slot length size of the second clamping groove 12 are all equal. This arrangement allows the second clamping block 13 and the first clamping block 8 to be engaged in the corresponding slots.
[0031] Working process: firstly, the pure copper foil 3 of the first block is attached to one side of the end plate 1, and then the first clamping block 8 of the first heat exchange plate 6 of the first block together with the first damping pad 9 are passed through the through groove 4 opened at the relative bottom of the pure copper foil 3, and the first clamping block 8 together with the first damping pad 9 are clamped in the connecting groove 5 opened on the inner side of the end plate 1, that is, the first heat exchange plate 6 and the pure copper foil of the first block are preliminarily positioned, and then the pure copper foil 3 of the second block is attached to the other side of the first heat exchange plate 6, and the second heat exchange plate 6 of the first block is attached. The second clamping block 13 and the second damping pad 14 on the plate 11 pass through the through groove 4 opened on the relative top of the pure copper foil 3, and are clamped in the inner side of the first clamping groove 7 in the first heat exchange plate 6, so as to position the second heat exchange plate 11 of the first block and the pure copper foil 3 of the second block, and then fit the pure copper foil 3 of the third block to the other side of the second heat exchange plate 11, and the first clamping block 8 and the first damping pad 9 of the first heat exchange plate 6 of the second block pass through the through groove 4 opened on the relative bottom of the pure copper foil 3, and the first heat exchange plate 6 of the second block is fixed. The first block 8 and the first damping pad 9 of the heat plate 6 are engaged in the second slot 12 of the previous second heat exchange plate 11, and so on, until all the pure copper foils 3, the first heat exchange plates 6 and the second heat exchange plates 11 are installed, and then the bottom plate 15 is fitted with the last second heat exchange plate 11, and the baffle 16 is fitted with the top of the end plate 1, so that the pure copper foil 3, the first heat exchange plate 6 and the second heat exchange plate 11 are quickly and accurately positioned, so that the structure in the brazed plate heat exchanger is easy to connect together. Then, a welding is performed in a vacuum brazing furnace, so that the end plate 1, the pure copper foil 3, the first heat exchange plate 6, the second heat exchange plate 11 and the bottom plate 15 are welded together. When the easy-to-connect brazed plate heat exchanger is in use, heat flows from the one side pipe 2 to the second through hole 17, the first through hole 10 and the third through hole 18, and thin rectangular channels are formed between the pure copper foil 3, the first heat exchange plate 6 and the second heat exchange plate 11. These staggered channels cause the cold and hot fluids of the brazed plate heat exchanger to generate strong turbulence to achieve a high heat exchange effect.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An easily connectable brazed plate heat exchanger, comprising an end plate (1), a pipe (2) mounted on the end plate (1), a uniformly arranged pure copper foil (3) and a bottom plate (15), characterized in that: A rectangular connecting groove (5) is provided on one side of the end plate (1); a first clamping block (8) is snap-connected to the inner side of the connecting groove (5); a first heat exchange plate (6) is fixedly connected to the outer side of the first clamping block (8); a first clamping groove (7) is provided on the top of the first heat exchange plate (6); a second clamping block (13) is snap-connected to the inner side of the first clamping groove (7); a second heat exchange plate (11) is fixedly connected to the outer side of the second clamping block (13); a second heat exchange plate (11) is provided on the bottom of the second heat exchange plate (11); The second heat exchange plate (11) is provided with four third through holes (18) of equal diameter on its inner side, the upper end surface of the bottom plate (15) is fixedly connected with a baffle (16) that can fit with the end plate (1), the inner side of the pure copper foil (3) is provided with four second through holes (17) of equal diameter, the inner side of the pure copper foil (3) is provided with through grooves (4) symmetrically arranged in an upper and lower direction, and the inner side of the first heat exchange plate (6) is provided with four first through holes (10) of equal diameter.
2. The easily connectable brazed plate heat exchanger according to claim 1, characterized in that: Both sides of the first clamping block (8) are fixedly connected with first damping pads (9), part of the first damping pads (9) are engaged with the inner side of the connecting groove (5), and part of the first clamping block (8) and the first damping pads (9) are engaged with the second clamping groove (12) through the through groove (4) at the bottom opposite to the pure copper foil (3).
3. The easy-to-connect brazed plate heat exchanger according to claim 1, characterized in that: Second damping pads (14) are fixedly connected to both sides of the second clamping block (13), and parts of the second clamping block (13) and the second damping pad (14) are clamped in through grooves (4) at the opposite tops of the pure copper foil (3).
4. The easy-to-connect brazed plate heat exchanger according to claim 1, characterized in that: The aperture size of the first through hole (10), the aperture size of the second through hole (17) and the aperture size of the third through hole (18) are all equal, and the first through hole (10), the second through hole (17) and the third through hole (18) are interconnected.
5. The easily connectable brazed plate heat exchanger according to claim 1, characterized in that: The slot lengths of the connecting slot (5), the through slot (4), the first clamping slot (7) and the second clamping slot (12) are all equal.