Plate heat exchanger

Abstract

The utility model provides a plate heat exchanger, and relates to the technical field of heat exchangers. The plate heat exchanger comprises a fixed frame, a movable plate, a plurality of heat transfer guide pieces, a limiting assembly and a plurality of clamping rods. The fixing frame is provided with a front fixing plate, a lower supporting plate and a rear fixing plate. One end of the lower supporting plate is fixedly connected with the front fixing plate, and the other end is fixedly connected with the rear fixing plate; one end of the second connecting rod is hinged with the rear fixing plate, and the other end is connected with the other end of the limiting rod; in the working state, the limiting rods are connected with the front fixing plate, the heat transfer guide piece movable plate and the rear fixing plate in a clamped mode. And the clamping rods are respectively connected with the front fixed plate, the movable plate and the rear fixed plate through bolts. The plate heat exchanger solves the technical problem that according to an existing plate heat exchanger, heat transfer plates are tedious to mount and dismount.

Description

A plate heat exchanger Technical Field

[0001] This utility model relates to the technical field of heat exchangers, and in particular to a plate heat exchanger. Background Technology

[0002] Plate heat exchangers are highly efficient and compact heat exchange devices widely used in industry, energy, and HVAC fields. Their core structure consists of a series of corrugated metal plates, through which heat exchange between hot and cold fluids is achieved.

[0003] Existing plate heat exchangers include a frame, inlet and outlet connecting pipes, heat transfer plates, sealing gaskets, and a clamping device. The inlet and outlet connecting pipes are installed in the frame, and the heat transfer plates are placed inside the frame and connected to the inlet and outlet connecting pipes. The sealing gaskets are placed between adjacent heat transfer plates, and the clamping device is connected to both the frame and the heat transfer plates. When installing the heat transfer plates into the frame, the lower groove of the heat transfer plate must first be engaged with the lower support plate of the frame. Then, the upper end of the heat transfer plate is tilted backward and inserted into the frame. Finally, the upper end of the heat transfer plate is pushed forward to engage the upper groove of the heat transfer plate with the upper limit post of the frame. This type of heat transfer plate needs to be installed one by one, making installation and disassembly quite cumbersome.

[0004] In the process of implementing this embodiment, the inventors discovered at least the following problems:

[0005] The installation and removal of heat transfer plates in existing plate heat exchangers is quite cumbersome. Summary of the Invention

[0006] The purpose of this utility model is to provide a plate heat exchanger that solves the technical problem that the installation and disassembly of heat transfer plates in existing plate heat exchangers are relatively cumbersome.

[0007] Utility model solution:

[0008] This utility model provides a plate heat exchanger, including a fixed frame, a movable plate, several heat transfer fins, a limiting assembly, and several clamping rods. The fixed frame has a front fixed plate, a lower support plate, and a rear fixed plate. One end of the lower support plate is fixedly connected to the front fixed plate, and the other end is fixedly connected to the rear fixed plate. The movable plate is slidably connected to the lower support plate. The heat transfer fins are disposed between the front fixed plate and the movable plate. The limiting assembly includes a first connecting rod, a limiting rod, and a second connecting rod. One end of the first connecting rod is hinged to the front fixed plate, and the other end is connected to one end of the limiting rod. One end of the second connecting rod is hinged to the rear fixed plate, and the other end is connected to the other end of the limiting rod. In the working state, the limiting rod is respectively engaged with the front fixed plate, the heat transfer fins, the movable plate, and the rear fixed plate. The clamping rods are respectively connected to the front fixed plate, the movable plate, and the rear fixed plate by bolts.

[0009] Furthermore, the rear fixing plate is provided with a switch mounting component and a switch plate; one end of the switch plate is movably connected to the switch mounting component, and the other end is connected to a limit rod.

[0010] Furthermore, the switch mounting component is provided with a spring component; one end of the spring component abuts against the switch mounting component, and the other end abuts against the switch plate.

[0011] Furthermore, a gasket is provided between the spring and the switch plate.

[0012] Beneficial effects:

[0013] This utility model provides a plate heat exchanger. In use, the movable plate is installed onto the lower support plate, and the clamping rod is inserted into one side of the front fixed plate, movable plate, and rear fixed plate. The limiting rod is pushed upwards to prevent it from engaging with the heat transfer plates. The heat transfer plates are then placed directly onto the lower support plate. After installation, the limiting rod is pushed in the opposite direction to engage with the heat transfer plates, front fixed plate, movable plate, and rear fixed plate. The nut is then rotated to clamp the movable plate with the heat transfer plates. Disassembly is performed by reversing the above steps. This type of plate heat exchanger facilitates the installation and disassembly of the heat transfer plates. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 is a structural schematic diagram of the plate heat exchanger provided in this embodiment;

[0016] Figure 2 is a schematic diagram of the plate heat exchanger provided in this embodiment.

[0017] icon:

[0018] 100-Fixed bracket; 110-Front mounting plate; 120-Lower support plate; 130-Rear mounting plate; 131-Switch mounting component; 132-Switch plate; 133-Spring component; 134-Washer;

[0019] 200-Activeboard;

[0020] 300-Heat transfer sheet;

[0021] 400 - Limiting component; 410 - First link; 420 - Limiting rod; 430 - Second link;

[0022] 500-Clamping rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal" and "vertical" do not imply that the components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] This embodiment provides a plate heat exchanger, as shown in Figures 1-2, including a fixed frame 100, a movable plate 200, a plurality of heat transfer fins 300, a limiting assembly 400, and a plurality of clamping rods 500. The fixed frame 100 is provided with a front fixed plate 110, a lower support plate 120, and a rear fixed plate 130. One end of the lower support plate 120 is fixedly connected to the front fixed plate 110, and the other end is fixedly connected to the rear fixed plate 130. The movable plate 200 is slidably connected to the lower support plate 120. The heat transfer fins 300 are disposed between the front fixed plate 110 and the movable plate 200. The limiting assembly... 400 includes a first connecting rod 410, a limiting rod 420, and a second connecting rod 430; one end of the first connecting rod 410 is hinged to the front fixed plate 110, and the other end is connected to one end of the limiting rod 420; one end of the second connecting rod 430 is hinged to the rear fixed plate 130, and the other end is connected to the other end of the limiting rod 420; in the working state, the limiting rod 420 is respectively engaged with the front fixed plate 110, the movable plate 200 of the heat transfer plate 300, and the rear fixed plate 130; the clamping rod 500 is respectively connected to the front fixed plate 110, the movable plate 200, and the rear fixed plate 130 by bolts.

[0030] Specifically, the fixed frame 100 provides support for the movable plate 200, the heat transfer plate 300, the limiting assembly 400, and the clamping rod 500. The front fixed plate 110 is equipped with a hot water inlet pipe, a hot water outlet pipe, a cold water inlet pipe, and a cold water outlet pipe. The lower support plate 120 is welded to the front fixed frame 100 and the rear fixed frame 100, respectively. The rear fixed plate 130 cooperates with the front fixed plate 110 to ensure that the lower support plate 120 is horizontal. The movable plate 200 is located on the lower support plate 120. The upward sliding mechanism allows the movable plate 200 to clamp the heat transfer conductor 300; the heat transfer conductor 300 is used for heat exchange between cold and hot flows; the limiting component 400 is used to limit the heat transfer conductor 300 and the movable plate 200, and the setting of the first link 410 and the second link 430 restricts the movement trajectory of the limiting rod 420; six clamping rods 500 are provided to move the movable plate 200, thereby clamping several heat transfer conductors 300. In use, install the movable plate 200 onto the lower support plate 120, and insert the clamping rod 500 into one side of the front fixed plate 110, the movable plate 200, and the rear fixed plate 130. Push the limiting rod 420 upwards so that the limiting rod 420 does not engage with the heat transfer plate 300. Then, place the heat transfer plate 300 directly onto the lower support plate 120. After the heat transfer plate 300 is installed, push the limiting rod 420 in the opposite direction so that the limiting rod 420 engages with the heat transfer plate 300, the front fixed plate 110, the movable plate 200, and the rear fixed plate 130. Rotate the nut so that the movable plate 200 clamps several heat transfer plates 300. To disassemble, simply reverse the above steps.

[0031] In this embodiment, the rear fixing plate 130 is provided with a switch mounting component 131 and a switch plate 132; one end of the switch plate 132 is movably connected to the switch mounting component 131, and the other end is connected to the limit rod 420.

[0032] Specifically, the switch mounting component 131 is used to mount the switch plate 132. After the limit rod 420 is engaged with the movable plate 200 and the heat transfer plate 300, the switch plate 132 is connected to the limit rod 420, thereby preventing the limit rod 420 from shaking.

[0033] In this embodiment, the switch mounting component 131 is provided with a spring component 133; one end of the spring component 133 abuts against the switch mounting component 131, and the other end abuts against the switch plate 132.

[0034] Specifically, the spring 133 is used to place the switch plate 132 stably on the limit rod 420, thereby preventing the switch plate 132 from leaving the limit rod 420 and ensuring that the limit rod 420 is more than the limit stability of the heat transfer plate 300 and the movable plate 200.

[0035] In this embodiment, a gasket 134 is provided between the spring member 133 and the switch plate 132.

[0036] Specifically, the gasket 134 is fixedly connected to the spring 133, and the gasket 134 is used to ensure that the spring 133 pushes the switch plate 132 stably.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plate heat exchanger, characterized in that, The device includes a fixed frame (100), a movable plate (200), several heat transfer plates (300), a limiting assembly (400), and several clamping rods (500). The fixed frame (100) is provided with a front fixed plate (110), a lower support plate (120), and a rear fixed plate (130). One end of the lower support plate (120) is fixedly connected to the front fixed plate (110), and the other end is fixedly connected to the rear fixed plate (130). The movable plate (200) is slidably connected to the lower support plate (120). The heat transfer plates (300) are disposed between the front fixed plate (110) and the movable plate (200). The limiting assembly (400) includes a first connecting rod (410) and a limiting rod. (420) and second connecting rod (430); one end of the first connecting rod (410) is hinged to the front fixed plate (110), and the other end is connected to one end of the limiting rod (420); one end of the second connecting rod (430) is hinged to the rear fixed plate (130), and the other end is connected to the other end of the limiting rod (420); in the working state, the limiting rod (420) is respectively engaged with the front fixed plate (110), the heat transfer plate (300), the movable plate (200) and the rear fixed plate (130); the clamping rod (500) is respectively connected to the front fixed plate (110), the movable plate (200) and the rear fixed plate (130) by bolts.

2. A plate heat exchanger according to claim 1, characterized in that, The rear fixing plate (130) is provided with a switch mounting part (131) and a switch plate (132); one end of the switch plate (132) is movably connected to the switch mounting part (131), and the other end is connected to the limit rod (420).

3. A plate heat exchanger according to claim 2, characterized in that, The switch mounting component (131) is provided with a spring component (133); one end of the spring component (133) abuts against the switch mounting component (131), and the other end abuts against the switch plate (132).

4. A plate heat exchanger according to claim 3, characterized in that, A gasket (134) is provided between the spring (133) and the switch plate (132).

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