Plate heat exchanger with filtering and temperature control functions

Abstract

The utility model relates to the technical field of plate heat exchangers, and discloses a plate heat exchanger with filtering and temperature control functions, which comprises a heat exchanger, a fluid pipe and a filter, the filter is detachably connected with the fluid pipe and communicated with the fluid pipe, the fluid pipe is communicated with the heat exchanger, and the fluid pipe comprises a first pipe body, a second pipe body and a third pipe body. The first pipe body and the third pipe body are located at the two ends of the second pipe body respectively, and the filter is detachably connected between the second pipe body and the third pipe body and communicated with the second pipe body and the third pipe body. The horizontal height of the end, away from the first pipe body, of the second pipe body is larger than that of the end, close to the first pipe body, of the second pipe body, and the pipe opening center line of the end, away from the first pipe body, of the second pipe body is perpendicular to the pipe opening center line of the end, close to the first pipe body, of the second pipe body. By means of the technical scheme, the problem that in the prior art, connection point positions between the filter and the connection pipeline of the heat exchanger can be aligned only by additionally applying force is solved, and the installation efficiency of the filter is improved.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger technology, and in particular to a plate heat exchanger with filtration and temperature control function. Background Technology

[0002] Plate heat exchangers are generally a type of efficient and compact heat exchange equipment, widely used in heating, air conditioning, industrial processes and other waste heat recovery fields.

[0003] Currently, for purposes such as protecting equipment safety and optimizing energy conservation, plate heat exchangers are typically equipped with temperature control components such as thermostatic valves on the fluid inlet and outlet pipes during installation. However, the flow channel clearance of existing plate heat exchangers is usually small (typically only 3-5 mm), making them prone to blockage or scaling due to poor water quality or the presence of particulate matter. This can lead to a series of problems, including increased flow resistance, decreased system flow rate, reduced heat exchanger heat transfer, and lower secondary measured water temperature. In such cases, the temperature control components may open the regulating valve wider or increase the pump frequency to compensate for temperature deviations. However, if the heat exchanger is severely blocked, this may exceed the regulating capacity, resulting in temperature control lag or overshoot.

[0004] Therefore, existing plate heat exchangers with filtration and temperature control functions are usually equipped with filters to ensure accurate temperature control. Since filters are also susceptible to clogging, they are typically connected to the plate heat exchanger via a detachable connection. Most existing filters are tubular structures, requiring alignment of both ends with the heat exchanger's pipes during installation, and then secured with bolts or other threaded fasteners. However, the filter's weight necessitates additional force to align it with the pipes, making installation somewhat inconvenient. Utility Model Content

[0005] The main purpose of this utility model is to provide a plate heat exchanger with filtration and temperature control function, which aims to solve the problem in related technologies that require an additional force to align the connection points between the filter and the heat exchanger, thereby improving the installation efficiency of the filter.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A plate heat exchanger with filtration and temperature control function includes a heat exchanger, a fluid pipe, and a filter. The filter is detachably connected to and communicates with the fluid pipe. The fluid pipe is also communicated with the heat exchanger. The fluid pipe includes a first pipe body, a second pipe body, and a third pipe body. The first pipe body and the third pipe body are located at opposite ends of the second pipe body. The filter is detachably connected between the second pipe body and the third pipe body and communicates with both. The horizontal height of the end of the second pipe body away from the first pipe body is higher than the end of the second pipe body close to the first pipe body, and the center line of the pipe opening at the end of the second pipe body away from the first pipe body is perpendicular to the center line of the pipe opening at the end of the second pipe body close to the first pipe body.

[0008] Furthermore, the filter includes a mating plate for cooperating with the second tube body. The projection surface of the mating plate in the axial direction of the filter is a polygonal structure. The second tube body is provided with a limiting plate for limiting the movement distance of the filter.

[0009] Furthermore, the projection surface of the limiting plate in the axial direction of the filter is a "<" shaped structure, and the mating plate abuts against the limiting plate.

[0010] Furthermore, the second tube body includes an abutment plate for cooperating with the mating plate, wherein the projection surface of the abutment plate in the axial direction of the filter coincides with the projection surface of the mating plate in the axial direction of the filter.

[0011] Furthermore, the abutment plate includes a plurality of connecting holes, each of which is a threaded hole.

[0012] Furthermore, the abutment plate is fixedly connected to the limiting plate.

[0013] Furthermore, several reinforcing plates are provided between the limiting plate and the second tube.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] This utility model mainly includes a heat exchanger, a fluid pipe, and a filter. The fluid pipe is interconnected with the heat exchanger to enable fluid input and output. The filter is detachably connected to the fluid pipe. When the filter is installed on the fluid pipe, it filters the fluid entering the fluid pipe, thus preventing blockage of the internal fluid channels of the heat exchanger due to poor water quality or particulate matter in the fluid. Furthermore, the detachable connection between the filter and the fluid pipe allows the filter to be removed from the fluid pipe for adjustment or replacement when blockage occurs. This prevents severe blockage from exceeding the adjustment capacity, which could lead to temperature control lag or overshoot, ensuring the accuracy of temperature control in this utility model.

[0016] The fluid pipe in this invention mainly includes a first pipe body, a second pipe body, and a third pipe body. The filter is detachable between the second and third pipe bodies and connects the two. The horizontal height of the end of the second pipe body furthest from the first pipe body is higher than the end of the second pipe body closest to the first pipe body. Furthermore, the center line of the opening at the end of the second pipe body furthest from the first pipe body is perpendicular to the center line of the opening at the end of the second pipe body closest to the first pipe body. This means that during filter installation, the second pipe body provides support for the filter, eliminating the need for workers to apply additional force to maintain it at the specified horizontal height, greatly facilitating filter installation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0019] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of the second tube in this embodiment;

[0021] Figure 4 for Figure 3 Top view.

[0022] Explanation of icon numbers:

[0023] 1. Heat exchanger; 2. Fluid pipe; 21. First pipe body; 22. Second pipe body; 221. Limiting plate; 222. Abutment plate; 2221. Connecting hole; 223. Reinforcing plate; 23. Third pipe body; 3. Filter; 31. Matching plate.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] like Figure 1As shown, this embodiment proposes a plate heat exchanger with filtration and temperature control functions, mainly including a heat exchanger 1, a fluid pipe 2, a filter 3, and a temperature control valve. The fluid pipe 2 is interconnected with the heat exchanger 1, and the filter 3 is detachably connected to and interconnected with the fluid pipe 2. This ensures that when the heat exchange fluid flows along the fluid pipe 2, it can pass through the filter 3, and the presence of the filter 3 filters out impurities and particulate matter in the fluid, preventing these impurities or particulate matter from entering the heat exchanger 1 and adsorbing on the internal fluid flow path of the heat exchanger 1, thus blocking the internal fluid flow path of the heat exchanger 1.

[0027] Since water outlet and return operations are involved, several fluid pipes 2, filters 3, and temperature control valves should be provided in this embodiment, with each fluid pipe 2, filter 3, and temperature control valve corresponding to and cooperating with each other.

[0028] like Figures 1-2 As shown, in this embodiment, each fluid pipe 2 includes a first pipe body 21, a second pipe body 22, and a third pipe body 23. The first pipe body 21 is fixedly mounted on the heat exchanger 1 and communicates with it. The first pipe body 21 and the third pipe body 23 are located at opposite ends of the second pipe body 22. A temperature control valve is located between the second pipe body 22 and the first pipe body 21 and connects the two, enabling the temperature sensor built into the temperature control valve to monitor the outlet or return water temperature, compare the measured value with the preset value to generate a deviation signal, and finally drive the valve core opening to change by the actuator of the temperature control valve, thereby completing the adjustment of the medium flow rate and achieving precise temperature control. Preferably, the two ends of the temperature control valve are fixedly connected to the second pipe body 22 and the first pipe body 21 by bolts and nuts or other threaded assemblies.

[0029] The filter 3 is detachably connected between the second tube 22 and the third tube 23, and connects the two. The horizontal height of the end of the second tube 22 away from the first tube 21 is higher than the end of the second tube 22 close to the first tube 21, and the center line of the pipe opening of the end of the second tube 22 away from the first tube 21 is perpendicular to the center line of the pipe opening of the end of the second tube 22 close to the first tube 21. Preferably, the second tube 22 is a bent tube structure. In this way, when installing the filter 3, the second tube 22 can be used to support the filter 3, so that the workers do not need to apply additional force to the filter 3 to keep it at the specified horizontal height position, which greatly facilitates the installation of the filter 3.

[0030] The end of the third tube 23 that is away from the second tube 22 is connected to the next process equipment. Specifically, the type of equipment in the next process depends on the system used in this embodiment, and will not be described in detail in this embodiment.

[0031] The filter 3 includes a mating plate 31 for cooperating with the second tube 22. The projection surface of the mating plate 31 in the axial direction of the filter 3 is a polygonal structure. The second tube 22 is provided with a limiting plate 221 for limiting the movement distance of the filter 3. The limiting plate 221 is fixedly connected to the second tube 22 to ensure the connection strength between the two and to ensure that the limiting plate 221 can better play its limiting role. The polygonal structure design of the mating plate 31 allows it to make surface contact with the limiting plate 221 when it comes into contact with the limiting plate 221. This not only accurately limits the position of the filter 3, but also prevents the filter 3 from rotating during installation. This allows the operator to directly align the connection points between the filter 3 and the second tube 22 and the third tube 23, further improving the installation effect of the filter 3.

[0032] The projection surface of the limiting plate 221 onto the filter 3 in the axial direction is a "<" shape. Thus, when the filter 3 moves toward the limiting plate 221, the inclined surface of the "<" shape guides the edge of the mating plate 31 into the bottom of the V-shape, achieving automatic centering and reducing the need for manual adjustment. Furthermore, the two sides of the "<" shape form an angle, which, together with the bottom edge (or a virtual third side), forms a triangular structure. This disperses the external force acting on the limiting plate 221 (the force from the filter 3) onto both sides, preventing deformation in one direction and effectively ensuring the structural stability of the limiting plate 221 itself.

[0033] The second tube 22 includes an abutment plate 222 for cooperating with the mating plate 31. The projection surface of the abutment plate 222 in the axial direction of the filter 3 coincides with the projection surface of the mating plate 31 in the axial direction of the filter 3, so that the second tube 22 and the filter 3 fit together and avoid interference between the abutment plate 222 and the limiting plate 221.

[0034] The abutment plate 222 is fixedly connected to the limiting plate 221. Preferably, the two are fixedly connected by welding, thereby increasing the number of support points provided by the second tube 22 for the limiting plate 221, making the limiting plate 221 more difficult to deform under external force, and effectively improving the overall structural stability of the limiting plate 221.

[0035] Furthermore, a number of reinforcing plates 223 are provided between the limiting plate 221 and the second tube 22. Both ends of each reinforcing plate 223 are fixedly connected to the second tube 22 and the limiting plate 221, respectively. Each reinforcing plate 223 is located at the end of the limiting plate 221 away from the abutment plate 222 and is symmetrically and evenly distributed around the limiting plate 221 to ensure that each reinforcing plate 223 can provide balanced and uniform support for the limiting plate 221. Each reinforcing plate 223 is preferably a triangular structure so as to further improve the stability of the limiting plate 221 by taking advantage of the stable characteristics of the triangular structure.

[0036] The abutment plate 222 includes several connecting holes 2221, through which threaded assemblies (bolts and nuts) connect the second pipe 22 and the filter 3. However, considering that the interaction between the limiting plate 221 and the abutment plate 222 could easily interfere with the operator's hands, making it difficult to mate the bolt assemblies in the connecting holes 2221 between the limiting plate 221 and the abutment plate 222, all connecting holes 2221 are threaded holes. This allows the bolts to be directly connected to the abutment plate 222, simplifying the installation process of the filter 3 and improving its installation efficiency. If necessary, nuts are then installed onto the bolts located between the limiting plate 221 and the abutment plate 222 to reinforce the connection between the filter 3 and the fluid pipe 2.

[0037] Preferably, the second tube 22, the filter 3, and the third tube 23 are fixedly connected by the same set of threaded fittings, thereby further simplifying the installation of the filter 3.

[0038] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0039] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A plate heat exchanger with filtration and temperature control function, comprising a heat exchanger (1), a fluid pipe (2), and a filter (3), wherein the filter (3) is detachably connected to and communicates with the fluid pipe (2), and the fluid pipe (2) is communicated with the heat exchanger (1), characterized in that, The fluid pipe (2) includes a first pipe body (21), a second pipe body (22), and a third pipe body (23). The first pipe body (21) and the third pipe body (23) are located at both ends of the second pipe body (22). The filter (3) is detachably connected between the second pipe body (22) and the third pipe body (23) and connects the two. The horizontal height of the end of the second pipe body (22) away from the first pipe body (21) is higher than the end of the second pipe body (22) close to the first pipe body (21). The center line of the pipe opening of the end of the second pipe body (22) away from the first pipe body (21) is perpendicular to the center line of the pipe opening of the end of the second pipe body (22) close to the first pipe body (21).

2. The plate heat exchanger with filtration and temperature control function according to claim 1, characterized in that, The filter (3) includes a mating plate (31) for cooperating with the second tube (22). The projection surface of the mating plate (31) in the axial direction of the filter (3) is a polygonal structure. The second tube (22) is provided with a limiting plate (221) for limiting the movement distance of the filter (3).

3. The plate heat exchanger with filtration and temperature control function according to claim 2, characterized in that, The projection surface of the limiting plate (221) on the filter (3) in the axial direction is a "<" shaped structure, and the mating plate (31) abuts against the limiting plate (221).

4. The plate heat exchanger with filtration and temperature control function according to claim 2 or 3, characterized in that, The second tube (22) includes an abutment plate (222) for cooperating with the mating plate (31), the projection surface of the abutment plate (222) in the axial direction of the filter (3) coincides with the projection surface of the mating plate (31) in the axial direction of the filter (3).

5. The plate heat exchanger with filtration and temperature control function according to claim 4, characterized in that, The abutment plate (222) includes a plurality of connecting holes (2221), each of which is a threaded hole.

6. The plate heat exchanger with filtration and temperature control function according to claim 4, characterized in that, The abutment plate (222) is fixedly connected to the limiting plate (221).

7. The plate heat exchanger with filtration and temperature control function according to claim 2 or 3, characterized in that, Several reinforcing plates (223) are provided between the limiting plate (221) and the second tube (22).

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