Mounting structure of plate heat exchanger and air-conditioning floor heating system

Abstract

The utility model discloses a mounting structure of a plate heat exchanger and an air conditioner floor heating system, the mounting structure comprises a bottom plate and a side plate, the side plate is vertically fixed at one end of the bottom plate, and the plate heat exchanger is fixedly arranged on the inner side of the side plate. The plate heat exchanger and the reinforcing plate are located on the two sides of the fixing plate respectively, one side of the plate heat exchanger is fixed to the inner side of the fixing plate, one side of the reinforcing plate is fixedly connected with the outer side of the fixing plate, and the other side of the reinforcing plate is fixedly connected with the inner side of the side plate. Wherein the plate heat exchanger, the fixing plate, the reinforcing plate and the side plate are fixedly connected together in sequence. In the extending direction of the side plate extending out of the bottom plate, the middle of the fixing plate is provided with a protruding part protruding towards one side of the plate heat exchanger, the end of the side, facing the side plate, of the plate heat exchanger is provided with a concave part, and the protruding part of the fixing plate is embedded into the concave part of the plate heat exchanger and fixedly connected with the plate heat exchanger through a fixing part. The connecting structure has the advantages of high connecting strength and good stability.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an installation structure of a plate heat exchanger and an air-conditioning floor heating system. Background Art

[0002] With the rapid development of technology, significant progress has been made in the technology of floor heating modules, and the quality of heat exchangers has an important impact on the performance and quality of floor heating. In the prior art, a plate heat exchanger is connected to a fixing plate by bolts, and the fixing plate is screwed to the main body. However, in the prior art, the bottom of the plate heat exchanger is in direct contact with the fixing plate, and the connection stability is poor. During transportation, there is a high possibility that the copper pipe connected to the plate heat exchanger will crack due to transportation vibration. Therefore, how to improve the connection stability between the fixing bracket and the plate heat exchanger has become an important technical problem to be solved by those skilled in the art.

[0003] In the prior art, Chinese Patent No. CN112682977A discloses an air source triple supply direct heating integrated machine, which includes a box structure, and further discloses a scheme of arranging a water pump, a plate heat exchanger, a three-way valve, etc. in the box. And this patent further discloses a scheme that the water pump is connected to the plate heat exchanger through a pipeline and the plate heat exchanger is connected to the three-way valve through a pipeline, specifically discloses the setting and connection method of the plate heat exchanger, but does not disclose or solve the problem that the bottom of the plate heat exchanger is in direct contact with the fixing plate or the side plate, and the connection stability is poor. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the bottom of the plate heat exchanger in the prior art is in direct contact with the fixing plate or the side plate, and the connection stability is poor.

[0005] To solve the above technical problems, an embodiment of the utility model discloses an installation structure of a plate heat exchanger, which includes a bottom plate and a side plate. The side plate is vertically fixed at one end of the bottom plate, and the plate heat exchanger is fixedly arranged inside the side plate. It also includes a fixing plate and a reinforcing plate. The plate heat exchanger and the reinforcing plate are respectively located on both sides of the fixing plate. One side of the plate heat exchanger is fixed inside the fixing plate, one side of the reinforcing plate is fixedly connected to the outside of the fixing plate, and the other side is fixedly connected to the inside of the side plate. And when looking at the plate heat exchanger, the fixing plate, the reinforcing plate and the side plate in the direction perpendicular to the side plate, they are fixedly connected together in sequence.

[0006] In the extending direction of the side plate extending from the bottom plate, the middle part of the fixing plate has a protruding part protruding towards the side of the plate heat exchanger, and the end part of the plate heat exchanger facing the side plate has a recessed part. The protruding part of the fixing plate is embedded in the recessed part of the plate heat exchanger and is fixedly connected to the plate heat exchanger through a fixing component.

[0007] With the above technical solution, the utility model effectively enhances the pressure resistance, structural strength of the connection structure and prevents deformation by adding a reinforcing plate between the fixed plate and the side plate. The reinforcing plate can effectively disperse and bear the stress from fluid pressure and working load, reduce the deformation of the fixed plate or the side plate, and ensure the stable operation of the heat exchanger. Setting the reinforcing plate also helps to maintain a uniform spacing between the plates, avoid plate deformation or misalignment caused by uneven pressure, thereby ensuring smooth fluid flow in the inter-plate channels, improving the heat exchange efficiency, and also facilitating subsequent maintenance and inspection.

[0008] The protruding part of the fixed plate is embedded in the recessed part of the plate heat exchanger and fixedly connected to the plate heat exchanger through fixing components. By adopting this connection method, the plate heat exchanger and the fixed plate can be firmly and stably connected together.

[0009] The embodiment of the utility model also discloses an installation structure of a plate heat exchanger. The fixing components include a plurality of threaded fasteners arranged in the recessed part of the plate heat exchanger and a plurality of connection holes arranged on the fixed plate and adapted to the plurality of threaded fasteners. The plurality of threaded fasteners are arranged at intervals and all protrude towards the fixed plate side. The plurality of connection holes are respectively arranged at intervals, and the plurality of threaded fasteners respectively penetrate through the plurality of connection holes and fixedly connect the plate heat exchanger and the fixed plate through fastening nuts.

[0010] With the above technical solution, by setting the threaded fasteners and the fastening nuts to fixedly connect the plate heat exchanger and the fixed plate, it has the advantages of simple structure, convenient installation, high connection strength and stability, not being easily damaged, and also facilitating subsequent maintenance and inspection work.

[0011] Further preferably, for the installation structure of the plate heat exchanger disclosed by the utility model, the fixing components further include auxiliary fasteners. The auxiliary fasteners include flat washers and spring washers. The flat washers and the spring washers are sleeved on one end of the threaded fastener protruding from the fixed plate and are respectively located on both sides of the fixed plate. And when looking along the direction perpendicular to the side plate, the fastening nut, the flat washer and the spring washer are all located within the contour area of the recessed part of the side plate.

[0012] With the above technical solution, setting the flat washers and the spring washers can protect the connected surfaces of the plate heat exchanger and the fixed plate, increase the bearing area to disperse the surface pressure, and at the same time play a role in preventing loosening, improving the connection stability.

[0013] Further preferably, for the installation structure of the plate heat exchanger disclosed by the utility model, in the extending direction of the side plate extending from the bottom plate, the reinforcing plate includes a first reinforcing plate, a transition connecting plate and a second reinforcing plate arranged in sequence. Among them:

[0014] The first reinforcement plate, the transition connection plate and the second reinforcement plate are integrally formed. The transition connection plate protrudes more towards the side plate compared to the first reinforcement plate and the second reinforcement plate, and one side of the second reinforcement plate facing the side plate is fixedly connected to the side plate through fasteners. The end of the second reinforcement plate close to the bottom plate is fixedly connected to the bottom plate.

[0015] Further preferably, the peripheral side of the bottom plate has a flanging connection plate, and the bottom end of the second reinforcement plate and the bottom end of the side plate are fixedly connected to the flanging connection plate on one side of the bottom plate through fasteners.

[0016] Further preferably, when viewed along the direction perpendicular to the side plate, the fixing plate is within the contour range of the reinforcement plate.

[0017] Further preferably, the protruding part in the middle of the fixing plate and the transition connection plate of the reinforcement plate protrude away from each other; and

[0018] when viewed along the direction perpendicular to the side plate, the area where the protruding part in the middle of the fixing plate is located partially overlaps with the area where the transition connection plate of the reinforcement plate is located.

[0019] Adopting the above technical solution, the fixing plate is within the contour range of the reinforcement plate, and the area where the protruding part in the middle of the fixing plate is located partially overlaps with the area where the transition connection plate of the reinforcement plate is located, which can further improve the connection strength between the plate heat exchanger, the fixing plate and the reinforcement plate.

[0020] Further preferably, in the installation structure of the plate heat exchanger disclosed by the present utility model, there is a movable gap between the joint part of the bottom plate and the side plate and the corresponding end of the plate heat exchanger. Setting the movable gap reserves a certain tolerance during installation and use, has a certain flexibility and adaptability, and can cope with the thermal stress and mechanical stress under different working conditions to improve the installation convenience and maintenance convenience.

[0021] Further preferably, in the installation structure of the plate heat exchanger disclosed by the present utility model, the opposite sides of the reinforcement plate and the fixing plate are fixedly connected to each other by spot welding. Adopting the spot welding method can increase its connection strength.

[0022] Further preferably, the present utility model discloses an air conditioner and floor heating, including the installation structure of the plate heat exchanger according to any one of the above.

[0023] The beneficial effects of the present utility model are:

[0024] The present utility model discloses an installation structure of a plate heat exchanger and an air conditioner and floor heating having such an installation structure. The installation structure of the plate heat exchanger includes a plate heat exchanger, a fixing plate, a reinforcing plate, and a side plate that are fixedly connected in sequence. The plate heat exchanger and the reinforcing plate are respectively located on both sides of the fixing plate. One side of the plate heat exchanger is fixed to the inner side of the fixing plate, one side of the reinforcing plate is fixedly connected to the outer side of the fixing plate, and the other side is fixedly connected to the inner side of the side plate. By adding a reinforcing plate between the fixing plate and the side plate, the present utility model can effectively enhance the pressure resistance and structural strength of the connection structure and prevent deformation, reduce the deformation of the fixing plate or the side plate, ensure the stable operation of the heat exchanger, and facilitate subsequent maintenance and inspection.

[0025] Furthermore, by providing threaded fasteners and fastening nuts to fixedly connect the plate heat exchanger and the fixing plate, it has the advantages of simple structure, convenient installation, high connection strength and stability, not being easily damaged, and also facilitating subsequent maintenance and inspection work. Setting flat washers and spring washers can protect the connected surfaces of the plate heat exchanger and the fixing plate, increase the bearing area to disperse the surface pressure, and at the same time play a role in preventing loosening, improving the connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an exploded view of the installation structure of the plate heat exchanger provided by an embodiment of the present utility model;

[0027] Figure 2 is a side view of the installation structure of the plate heat exchanger provided by an embodiment of the present utility model;

[0028] Figure 3 is a top view of the installation structure of the plate heat exchanger provided by an embodiment of the present utility model;

[0029] Figure 4 is a schematic diagram of the fixing plate and the reinforcing plate in the installation structure of the plate heat exchanger provided by an embodiment of the present utility model.

[0030] Description of the reference numerals:

[0031] 1, bottom plate; 2, plate heat exchanger; 3, side plate; 4, fixing plate; 5, reinforcing plate; 6, protruding part; 7, recessed part; 8, threaded fastener; 9, connection hole; 10, flat washer; 11, spring washer; 12, fastening nut; 13, first reinforcing plate; 14, transition connecting plate; 15, second reinforcing plate; 16, flanging connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] In an air-conditioning and floor heating system, as an important heat exchange device, the structural design and optimization of the plate heat exchanger are crucial for improving the overall performance of the system. The plate heat exchanger mainly includes structures such as plate packs and frames. The working principle of the plate heat exchanger is as follows: Fluids that need to transfer heat (such as chilled water or hot water) are respectively introduced into the cold and hot fluid channels of the plate heat exchanger. The fluids flow in their respective channels and exchange heat with the plate packs. Heat is conducted from the hot fluid (such as hot water) through the plate packs to the cold fluid (such as chilled water), causing the temperatures of the two to change. Through the corrugated shape of the plate packs and the action of fluid turbulence, the heat transfer efficiency is improved, and efficient heat transfer is achieved.

[0033] Generally, the plate heat exchanger is fixedly installed on a fixed plate, and then connected to the side plate through the fixed plate. The bottom of the plate heat exchanger is in direct contact with the fixed plate, and the fixed plate and the side plate are directly connected by screws, resulting in poor connection stability. Moreover, during transportation, it is very likely that the copper pipes connected to the plate heat exchanger will crack due to transportation vibration. Therefore, in the prior art, the connection stability between the plate heat exchanger and the side plate or the fixed plate is relatively poor.

[0034] To solve the problem of relatively poor connection stability between the plate heat exchanger and the side plate or the fixed plate in the prior art, the present utility model discloses an installation structure for a plate heat exchanger. A reinforcing plate is added between the fixed plate and the side plate to improve its installation and connection strength and to improve its structure. Next, the solution of the present utility model will be specifically described in detail in the following embodiments:

[0035] Embodiment 1

[0036] The implementation mode of this embodiment discloses an installation structure for a plate heat exchanger. Please refer to Figure 1 and Figure 2 . This installation structure includes a bottom plate 1 and a side plate 3. The side plate 3 is vertically fixed at one end of the bottom plate 1, and the plate heat exchanger 2 is fixedly arranged inside the side plate 3. It also includes a fixed plate 4 and a reinforcing plate 5. The plate heat exchanger 2 and the reinforcing plate 5 are respectively located on both sides of the fixed plate 4. One side of the plate heat exchanger 2 is fixed to the inside of the fixed plate 4, one side of the reinforcing plate 5 is fixedly connected to the outside of the fixed plate 4, and the other side is fixedly connected to the inside of the side plate 3. Moreover, when looking at the plate heat exchanger 2, the fixed plate 4, the reinforcing plate 5, and the side plate 3 in the direction perpendicular to the side plate 3, they are fixedly connected together in sequence.

[0037] In the extending direction of the side plate 3 extending from the bottom plate 1, the middle part of the fixed plate 4 has a protruding part 6 protruding toward the side of the plate heat exchanger 2. One end of the plate heat exchanger 2 facing the side plate 3 has a recessed part 7. The protruding part 6 of the fixed plate 4 is embedded in the recessed part 7 of the plate heat exchanger 2 and is fixedly connected to the plate heat exchanger 2 through a fixing component.

[0038] Specifically, in this embodiment, a reinforcing plate 5 is added between the fixing plate 4 and the side plate 3, which can effectively enhance the pressure resistance and structural strength of the connection structure and prevent deformation. The reinforcing plate 5 can effectively disperse and bear the stress from fluid pressure and working load, reduce the deformation of the fixing plate 4 or the side plate 3, and ensure the stable operation of the heat exchanger. Setting the reinforcing plate 5 also helps to maintain a uniform spacing between the plates, avoid plate deformation or misalignment caused by uneven pressure, thereby ensuring smooth fluid flow in the inter-plate channels, improving the heat exchange efficiency, and also facilitating subsequent maintenance and inspection.

[0039] More specifically, in this embodiment, the reinforcing plate 5 can be set as a square plate-like structure and fixedly arranged between the fixing plate 4 and the side plate 3. Those skilled in the art can adjust specific parameter values such as the external shape structure and thickness of the reinforcing plate 5 according to actual needs, and this embodiment does not make specific limitations on this.

[0040] More specifically, in one implementation manner, the protruding portion 6 protruding toward the plate heat exchanger 2 in the middle of the fixing plate 4 can be set as a rectangular structure, corresponding to the rectangular recessed portion 7 of the plate heat exchanger 2. When the plate heat exchanger 2 is fixedly connected to the fixing plate 4, the recessed portion 7 and the protruding portion 6 are just snap-fitted and fixed. Those skilled in the art should understand that the structure of the protruding portion 6 is adapted to be connected with the recessed portion 7 of the plate heat exchanger 2. In this application, the protruding portion 6 of the fixing plate 4 is embedded in the recessed portion 7 of the plate heat exchanger 2 and fixedly connected to the plate heat exchanger 2 through fixing components. By adopting this connection method, the plate heat exchanger 2 and the fixing plate 4 can be firmly and stably connected together.

[0041] The implementation manner of this embodiment also discloses an installation structure of a plate heat exchanger. Please refer to Figure 1 and Figure 4 , the fixing components include a plurality of threaded fasteners 8 arranged in the recessed portion 7 of the plate heat exchanger 2 and a plurality of connection holes 9 arranged on the fixing plate 4 and adapted to the plurality of threaded fasteners 8. The plurality of threaded fasteners 8 are arranged at intervals and all protrude toward the fixing plate 4. The plurality of connection holes 9 are respectively arranged at intervals, and the plurality of threaded fasteners 8 respectively penetrate through the plurality of connection holes 9 and fixedly connect the plate heat exchanger 2 and the fixing plate 4 through fastening nuts 12.

[0042] Specifically, in this embodiment, the threaded fasteners 8 can be provided in numbers of 2, 3, 4 or even more. The number of the connecting holes 9 is adapted to the number of the threaded fasteners 8. Taking the example of 3 threaded fasteners 8 and 3 connecting holes 9, the 3 threaded fasteners 8 and 3 connecting holes 9 are evenly and spacedly arranged. Moreover, the threaded fasteners 8 disclosed in this embodiment can be common structures such as bolts, studs, and screws with a certain length to ensure that the threaded fasteners 8 can pass through the connecting holes 9 on the fixing plate 4. With this structural design, the plate heat exchanger 2 is fixedly connected to the fixing plate 4 by setting the threaded fasteners 8 and the fastening nuts 12, which has the advantages of simple structure, convenient installation, high connection strength and stability, and is not easily damaged. Moreover, it is also convenient for subsequent maintenance and inspection work.

[0043] Further preferably, for the installation structure of the plate heat exchanger disclosed in this embodiment, the fixing member further includes auxiliary fasteners. The auxiliary fasteners include flat washers 10 and spring washers 11. The flat washers 10 and spring washers 11 are sleeved on one end of the threaded fasteners 8 protruding from the fixing plate 4 and are respectively located on both sides of the fixing plate 4. Moreover, when viewed along the direction perpendicular to the side plate 3, the fastening nuts 12, flat washers 10, and spring washers 11 are all located within the contour area of the recessed portion 7 of the side plate 3.

[0044] Specifically, in one implementation manner disclosed in this embodiment, the flat washers 10 and spring washers 11 are sleeved on the threaded fasteners 8 and are located on both sides of the fixing plate 4. In another implementation manner, the flat washers 10 and spring washers 11 can also be arranged on one side of the fixing plate 4. And those skilled in the art should understand that the auxiliary fasteners include but are not limited to setting the flat washers 10 and spring washers 11, and can also be set as, for example, rubber washers. In this embodiment, setting the flat washers 10 and spring washers 11 can protect the connected surfaces of the plate heat exchanger 2 and the fixing plate 4, can increase the bearing area to disperse the surface pressure, and at the same time play a role in preventing loosening, improving the connection stability.

[0045] Further preferably, for the installation structure of the plate heat exchanger disclosed in this embodiment, please refer to Figure 1 , in the extending direction of the side plate 3 extending from the bottom plate 1, the reinforcing plate 5 includes a first reinforcing plate 13, a transition connecting plate 14, and a second reinforcing plate 15 arranged in sequence. Among them, the first reinforcing plate 13, the transition connecting plate 14, and the second reinforcing plate 15 are integrally formed. The transition connecting plate 14 protrudes more towards the side plate 3 than the first reinforcing plate 13 and the second reinforcing plate 15. And one side portion of the second reinforcing plate 15 facing the side plate 3 is fixedly connected to the side plate 3 by fasteners, and the end portion of the second reinforcing plate 15 close to the bottom plate 1 is fixedly connected to the bottom plate 1.

[0046] With the design of this structure, the bottom end of the reinforcing plate 5 is fixedly connected to the flanging connecting plate 16 of the bottom plate 1, and the first reinforcing plate 13 is fixedly connected to the side plate 3. The reinforcing plate 5 is respectively connected to the bottom plate 1 and the side plate 3 at the same time. Therefore, the connection strength and connection stability of the reinforcing plate 5 are relatively high. It should be noted that the reinforcing plate 5 can also be set as a straight plate structure and fixedly connected to the side plate 3.

[0047] Further preferably, the peripheral side of the bottom plate 1 has a flanging connecting plate 16, and the bottom end of the second reinforcing plate 15 and the bottom end of the side plate 3 are fixedly connected to the flanging connecting plate 16 on one side of the bottom plate 1 through fasteners.

[0048] Further preferably, please refer to Figure 4 , when viewed along the direction perpendicular to the side plate 3, the fixing plate 4 is within the contour range of the reinforcing plate 5.

[0049] Further preferably, the protruding portion 6 in the middle of the fixing plate 4 and the transition connecting plate 14 of the reinforcing plate 5 protrude away from each other; and

[0050] , when viewed along the direction perpendicular to the side plate 3, the area where the protruding portion 6 in the middle of the fixing plate 4 is located partially overlaps with the area where the transition connecting plate 14 of the reinforcing plate 5 is located.

[0051] With the above technical solution, the fixing plate 4 is within the contour range of the reinforcing plate 5, and the area where the protruding portion 6 in the middle of the fixing plate 4 is located partially overlaps with the area where the transition connecting plate 14 of the reinforcing plate 5 is located, which can further improve the connection strength among the plate heat exchanger 2, the fixing plate 4, and the reinforcing plate 5.

[0052] Further preferably, for the installation structure of the plate heat exchanger disclosed in this embodiment, there is a movable gap between the joint part of the bottom plate 1 and the side plate 3 and the corresponding end of the plate heat exchanger 2. Setting the movable gap reserves a certain tolerance during installation and use, has a certain degree of flexibility and adaptability, and can cope with thermal stress and mechanical stress under different working conditions to improve the installation convenience and maintenance convenience. Specifically, in this embodiment, the movable gap between the joint part of the bottom plate 1 and the side plate 3 and the corresponding end of the plate heat exchanger 2 can be 20mm, 25mm, 30mm or other dimensional gaps, and this embodiment does not make specific limitations on this.

[0053] Further preferably, for the installation structure of the plate heat exchanger disclosed in this embodiment, the opposite sides of the reinforcing plate 5 and the fixing plate 4 are fixedly connected to each other by spot welding. Using the spot welding method can increase its connection strength.

[0054] Next, a simple example is given to illustrate the installation method or installation steps of the installation structure of the plate heat exchanger disclosed in this embodiment:

[0055] First, align the recessed portion 7 of the plate heat exchanger 2 with the protruding portion 6 of the fixed plate 4, and align the threaded fastener 8 on the plate heat exchanger 2 with the connection hole 9 on the fixed plate 4. Then, pass the threaded fastener 8 through the connection hole 9 and ensure that the recessed portion 7 fits integrally with the fixed portion. Next, fixedly connect the plate heat exchanger 2 and the fixed plate 4 through the fastening nut 12. And between the fixed fastening nut 12 and the threaded fastener 8, pre - sleeved the flat washer 10 and the spring washer 11 on the threaded fastener 8 to ensure the connection strength between the plate heat exchanger 2 and the fixed plate 4 after installation. Then, fixedly connect the opposite sides of the reinforcing plate 5 and the fixed plate 4 to each other by spot welding to ensure their connection strength. And the reinforcing plate 5 is also fixedly connected to the bottom plate 1 and the side plate 3, thereby ensuring the connection stability and connection strength of the plate heat exchanger 2, the fixed plate 4, the reinforcing plate 5, and the side plate 3. And for the convenience of installing and disassembling the fastening nut 12, an avoidance hole or an operation hole can also be provided at the position corresponding to the connection hole 9 on the reinforcing plate 5 to facilitate subsequent maintenance. The side view of the installation structure of the plate heat exchanger after installation is as shown in Figure 2 shown, and the top view is as shown in Figure 3 shown. It should be noted that this embodiment only shows one of the installation and connection methods. Those skilled in the art can also install or connect through other methods, such as adjusting the installation or connection sequence, etc. This embodiment does not make specific limitations on this.

[0056] Embodiment 2

[0057] This embodiment also discloses an air - conditioner and floor heating system, including the installation structure of the plate heat exchanger in any one of Embodiments 1. It should be noted that the air - conditioner and floor heating system in this embodiment can also be other structures such as an air - conditioner outdoor unit, etc. This embodiment does not make specific limitations on this.

[0058] In summary, the present invention discloses an installation structure of a plate heat exchanger and an air - conditioner and floor heating system with such an installation structure. The installation structure of the plate heat exchanger includes a plate heat exchanger 2, a fixed plate 4, a reinforcing plate 5, and a side plate 3 that are fixedly connected in sequence. The plate heat exchanger 2 and the reinforcing plate 5 are respectively located on both sides of the fixed plate 4. One side of the plate heat exchanger 2 is fixed to the inner side of the fixed plate 4, one side of the reinforcing plate 5 is fixedly connected to the outer side of the fixed plate 4, and the other side is fixedly connected to the inner side of the side plate 3. By adding a reinforcing plate 5 between the fixed plate 4 and the side plate 3, the present invention can effectively enhance the pressure resistance, structural strength of the connection structure, prevent deformation, reduce the deformation of the fixed plate 4 or the side plate 3, ensure the stable operation of the heat exchanger, and facilitate subsequent maintenance and inspection.

[0059] Furthermore, by setting the threaded fastener 8 and the fastening nut 12, the plate heat exchanger 2 is fixedly connected to the fixing plate 4, which has the advantages of simple structure, convenient installation, high connection strength and stability, and is not easily damaged. Moreover, it is also convenient for subsequent maintenance and inspection work. Setting the flat washer 10 and the spring washer 11 can protect the connected surfaces of the plate heat exchanger 2 and the fixing plate 4, increase the bearing area to disperse the surface pressure, and at the same time play a role in preventing loosening, improving the connection stability.

[0060] It should be noted that, in addition to the embodiments of the present invention described in the above specific embodiments, those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiments, this does not mean that the features of this invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiment is to cover other alternatives or modifications that may be extended based on the claims of the present invention. To provide a deep understanding of the present invention, many specific details are included in the above description. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or obscuring the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0061] It should be noted that in this specification, similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0062] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0063] The terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0064] In the description of this embodiment, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0065] Although the present invention has been illustrated and described by referring to some preferred embodiments of the present invention, those of ordinary skill in the art should understand that the above content is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A mounting structure of a plate heat exchanger, comprising a bottom plate and a side plate, wherein the side plate is vertically fixed to one end of the bottom plate, and the plate heat exchanger is fixedly arranged on the inner side of the side plate; characterized in that: Also includes: A fixing plate and a reinforcing plate, wherein the plate heat exchanger and the reinforcing plate are respectively located on both sides of the fixing plate, one side of the plate heat exchanger is fixed to the inner side of the fixing plate, one side of the reinforcing plate is fixedly connected to the outer side of the fixing plate, and the other side is fixedly connected to the inner side of the side plate; and when looking toward the plate heat exchanger in a direction perpendicular to the side plate, the plate heat exchanger, the fixing plate, the reinforcing plate and the side plate are fixedly connected together in sequence; and In the extension direction of the side plate extending from the bottom plate, the middle part of the fixed plate has a protrusion protruding toward one side of the plate heat exchanger, and the plate heat exchanger has a recessed portion at one end portion facing the side plate, and the protrusion of the fixed plate is embedded in the recessed portion of the plate heat exchanger and is fixedly connected to the plate heat exchanger through a fixing component.

2. The installation structure of the plate heat exchanger according to claim 1, characterized in that: The fixing component comprises a plurality of threaded fasteners arranged in the recessed portion of the plate heat exchanger, wherein the plurality of threaded fasteners are arranged at intervals and all protrude toward one side of the fixing plate; as well as A plurality of connection holes are provided on the fixing plate and are adapted to the plurality of threaded fasteners. The plurality of connection holes are respectively arranged at intervals. The plurality of threaded fasteners respectively penetrate the plurality of connection holes and fix the plate heat exchanger to the fixing plate through fastening nuts.

3. The installation structure of the plate heat exchanger according to claim 2, characterized in that: The fixing component also includes an auxiliary fastener; The auxiliary fastener comprises a flat washer and a spring washer, the flat washer and the spring washer are sleeved on one end of the threaded fastener protruding from the fixing plate and are respectively located on both sides of the fixing plate; and When viewed in a direction perpendicular to the side plate, the fastening nut, the flat washer and the spring washer are all located within the contour area of ​​the recessed portion of the side plate.

4. The installation structure of the plate heat exchanger according to claim 1, characterized in that: In the extension direction of the side plate extending from the bottom plate, the reinforcing plate includes a first reinforcing plate, a transition connecting plate and a second reinforcing plate arranged in sequence; wherein The first reinforcing plate, the transition connecting plate and the second reinforcing plate are integrally formed, and the transition connecting plate protrudes further toward the side plate than the first reinforcing plate and the second reinforcing plate; and The side portion of the second reinforcing plate facing the side plate is fixedly connected to the side plate via a fastener, and the end portion of the second reinforcing plate close to the bottom plate is fixedly connected to the bottom plate.

5. The installation structure of the plate heat exchanger according to claim 4, characterized in that: The peripheral side of the bottom plate is provided with a flanged connecting plate, and the bottom end of the second reinforcing plate and the bottom end of the side plate are fixedly connected to the flanged connecting plate on one side of the bottom plate through the fasteners.

6. The installation structure of the plate heat exchanger according to claim 5, characterized in that: When viewed in a direction perpendicular to the side plate, the fixing plate is within the contour of the reinforcing plate.

7. The installation structure of the plate heat exchanger according to claim 6, characterized in that: The protrusion in the middle of the fixing plate and the transition connecting plate of the reinforcing plate protrude away from each other; and When viewed in a direction perpendicular to the side plate, the area where the protrusion in the middle of the fixing plate is located partially overlaps with the area where the transition connecting plate of the reinforcing plate is located.

8. The installation structure of the plate heat exchanger according to claim 1, characterized in that: There is a movable gap between the connecting portion of the bottom plate and the side plate and the corresponding end portion of the plate heat exchanger.

9. The installation structure of a plate heat exchanger according to any one of claims 1 to 8, characterized in that: The reinforcing plate and the opposite side surfaces of the fixing plate are fixedly connected to each other by spot welding.

10. An air-conditioning floor heating system, characterized in that: The invention comprises a mounting structure of a plate heat exchanger according to any one of claims 1 to 9.

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