Plate heat exchanger

Abstract

The utility model relates to the technical field of plate heat exchangers, and discloses a plate heat exchanger which comprises two side plates, connecting plates are clamped at the two ends between the two side plates, a plurality of heat exchange plates are arranged between the two connecting plates in a stacked mode, and inserting plates are integrally arranged at the two ends of the two connecting plates. Inserting grooves are formed in the two ends of one side of each side plate, and a containing groove and a movable groove are sequentially formed in the top end of each inserting groove. According to the heat exchanger, the connecting plates are installed at the two ends of the stacked heat exchange plates, the inserting plates at the two ends of each connecting plate are connected with the inserting grooves in one sides of the side plates in an inserted mode, and therefore the connecting plates can be preliminarily fixed, and then the fixing columns at one ends of the inserting rods penetrate through the connecting holes in the middles of the inserting plates to be inserted into the fixing holes; and then the half-body threaded rods and the nuts are installed in the multiple through holes in the same side, and therefore the multiple heat exchange plates and the two side plates can be further fixed.

Description

Technical Field

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

[0002] A plate heat exchanger is a highly efficient heat exchange device that uses a series of parallel metal plates (commonly called heat exchange plates) to transfer heat between different fluids. Plate heat exchangers are widely used for heating, cooling, or aseptic processing of food, as well as for heating or cooling reaction mixtures.

[0003] The installation structure of traditional plate heat exchangers is often quite complicated, requiring a lot of time and manpower for later maintenance and disassembly, which greatly reduces the efficiency of heat exchanger maintenance.

[0004] Therefore, those skilled in the art have provided a plate heat exchanger to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a plate heat exchanger. When disassembly is required, simply remove the two half-body threaded rods, and then pull the pull rods at both ends of the two side plates in sequence to disengage the fixing column from the fixing hole and the connection hole, so that the side plate can be removed. The above design can ensure the stability of the connection and also allow for quick disassembly, which facilitates the disassembly and maintenance of the heat exchanger in the future.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A plate heat exchanger includes two side plates, with connecting plates secured at both ends between the two side plates, and multiple heat exchange plates stacked between the two connecting plates. Each of the two connecting plates has an insert plate integrally provided at both ends. Each of the two side plates has a slot at both ends on one side, and each slot has a receiving groove and a movable groove sequentially provided at its top. Each movable groove has a sliding rod slidably disposed inside, and each rod has a fixing post integrally provided at one end.

[0008] The above technical solution involves installing connecting plates at both ends of multiple stacked heat exchange plates. The connecting plates are then inserted into slots on one side of the side plates via insert plates at both ends, thus initially fixing the connecting plates. A fixing post at one end of an insert rod passes through the connecting hole in the middle of the insert plate and inserts into the fixing hole, thereby fixing the position of the insert plate. When disassembly is required, the pull rods at both ends of the two side plates are pulled simultaneously to disengage the fixing post from the fixing hole and connecting hole, allowing the side plates to be removed. This design ensures both connection stability and rapid disassembly, facilitating subsequent disassembly and maintenance of the heat exchanger.

[0009] Furthermore, the two side plates and the multiple heat exchange plates are provided with through holes of the same size at opposite ends, and a half-threaded rod is installed inside the multiple through holes on the same side, and a nut is threaded onto one end of each of the two half-threaded rods.

[0010] The above technical solution involves installing half-threaded rods and nuts inside multiple through holes on the same side, thereby further fixing multiple heat exchange plates to the two side plates.

[0011] Furthermore, a spring is fitted onto the outer end of each of the insert rods, and a pull plate is fixedly installed at one end of each of the insert rods;

[0012] With the above technical solution, each insertion rod is fitted with a spring at its outer end to facilitate the reset of the pulled rod, and a pull plate is fixedly installed at one end of each insertion rod to facilitate the movement of the rod by pulling it.

[0013] Furthermore, each of the slots has a fixing hole at one end, and the diameter of each fixing hole is the same as the diameter of the fixing post.

[0014] With the above technical solution, a fixing hole is opened at one end of each slot. The diameter of each fixing hole is the same as the diameter of the fixing post, so as to facilitate the insertion and fixing of the fixing post and the side plate, while restricting the position of the fixing post.

[0015] Furthermore, each of the insert plates has a connecting hole in the middle, and the diameter of each connecting hole is the same as the diameter of the fixing post;

[0016] With the above technical solution, a connecting hole is provided in the middle of each insert plate. The diameter of each connecting hole is the same as the diameter of the fixing post, which facilitates fixing the insert plate and limiting its position.

[0017] Furthermore, one end of one of the side plates is designed with a pair of hot water connecting pipes, and below the pair of hot water connecting pipes is a pair of cold water connecting pipes;

[0018] With the above technical solution, a pair of hot water connection pipes are designed at one end of a side plate, and a pair of cold water connection pipes are designed below the pair of hot water connection pipes to facilitate connection with water pipes that require heat exchange.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model proposes a plate heat exchanger, which initially fixes the connecting plates by installing connecting plates at both ends of multiple stacked heat exchange plates and inserting the insert plates at both ends of the connecting plates into slots on one side of the side plates. Then, the fixing post at one end of the insert rod passes through the connecting hole in the middle of the insert plate and is inserted into the fixing hole to fix the position of the insert plate. Then, the multiple through holes on the same side are fitted with half-threaded rods and nuts to further fix the multiple heat exchange plates to the two side plates. When disassembly is required, simply remove the two half-threaded rods and then pull the pull rods at both ends of the two side plates in sequence to disengage the fixing post from the fixing hole and the connecting hole, so that the side plates can be removed. The above design can ensure the stability of the connection and also allow for quick disassembly, which is convenient for the disassembly and maintenance of the heat exchanger in the future. Attached Figure Description

[0021] Figure 1 This is a rear axonometric view of a plate heat exchanger proposed in this utility model;

[0022] Figure 2 This is a front axonometric drawing of a plate heat exchanger proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of a plate heat exchanger proposed in this utility model;

[0024] Figure 4 This is a cross-sectional view of a plate heat exchanger proposed in this utility model;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Side plate; 2. Connecting plate; 3. Heat exchange plate; 4. Insert plate; 5. Connecting hole; 6. Slot; 7. Fixing hole; 8. Storage slot; 9. Movable slot; 10. Insert rod; 11. Spring; 12. Pull plate; 13. Fixing column; 14. Half-body threaded rod; 15. Nut; 16. Through hole; 17. Hot water connection pipe; 18. Cold water connection pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1-5This utility model provides an embodiment of a plate heat exchanger, comprising two side plates 1, with connecting plates 2 clamped at both ends between the two side plates 1, and multiple heat exchange plates 3 stacked between the two connecting plates 2. Insert plates 4 are integrally provided at both ends of each of the two connecting plates 2. Slots 6 are formed at both ends of one side of each of the two side plates 1. A receiving groove 8 and a movable groove 9 are sequentially formed at the top of each slot 6. An insert rod 10 is slidably disposed inside each movable groove 9, and a fixing post 13 is integrally provided at one end of each insert rod 10. The heat exchanger is constructed by installing connecting plates 2 at both ends of the multiple stacked heat exchange plates 3. The connecting plate 2 is initially fixed by inserting the insert plates 4 at both ends into the slots 6 on one side of the side plate 1. Then, the fixing post 13 at one end of the insert rod 10 passes through the connecting hole 5 in the middle of the insert plate 4 and is inserted into the fixing hole 7 to fix the position of the insert plate 4. When disassembly is required, the pull rods at both ends of the two side plates 1 are pulled in sequence to disengage the fixing post 13 from the fixing hole 7 and the connecting hole 5, and the side plate 1 can be removed. The above design can ensure the stability of the connection and also allow for quick disassembly, which is convenient for the disassembly and maintenance of the heat exchanger in the future.

[0030] Two side plates 1 and multiple heat exchange plates 3 each have through holes 16 of the same size at opposite ends. Half-threaded rods 14 are installed inside the through holes 16 on the same side. Nuts 15 are threaded onto one end of each of the two half-threaded rods 14. By installing the half-threaded rods 14 and nuts 15 inside the through holes 16 on the same side, the multiple heat exchange plates 3 can be further fixed to the two side plates 1. A spring 11 is fitted onto the outer end of each insertion rod 10, and a pull plate 12 is fixedly installed at one end of each insertion rod 10. The spring 11 facilitates the reset of the pulled rod. The pull plate 12 is fixedly installed at one end of each insertion rod 10 for easy movement. A fixing hole 7 is opened at one end of each slot 6. The diameter of each fixing hole 7 is the same as the diameter of the fixing post 13. Each end of the side plate 1 is provided with a fixing hole 7, the diameter of which is the same as that of the fixing post 13, so as to facilitate the insertion and fixing of the fixing post 13 and the side plate 1, and at the same time restrict the position of the fixing post 13. Each insert plate 4 is provided with a connecting hole 5 in the middle, the diameter of which is the same as that of the fixing post 13, so as to facilitate the fixing of the insert plate 4 and limit its position. One end of each side plate 1 is designed with a pair of hot water connecting pipes 17, and below the pair of hot water connecting pipes 17 is a pair of cold water connecting pipes 18, so as to facilitate the connection with the water pipe that needs heat exchange.

[0031] Working principle: By installing connecting plates 2 at both ends of multiple stacked heat exchange plates 3, and inserting the insert plates 4 at both ends of the connecting plates 2 into the slots 6 on one side of the side plates 1, the connecting plates 2 can be initially fixed. Then, the fixing post 13 at one end of the insert rod 10 passes through the connecting hole 5 in the middle of the insert plate 4 and is inserted into the fixing hole 7, thereby fixing the position of the insert plate 4. Then, by installing half-threaded rods 14 and nuts 15 inside the multiple through holes 16 on the same side, the multiple heat exchange plates 3 and the two side plates 1 can be further fixed. When disassembly is required, simply remove the two half-threaded rods 14, and then pull the pull rods at both ends of the two side plates 1 in sequence to disengage the fixing post 13 from the fixing hole 7 and the connecting hole 5, so that the side plates 1 can be removed. The above design can ensure the stability of the connection and also allow for quick disassembly, which is convenient for the disassembly and maintenance of the heat exchanger in the future.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plate heat exchanger, comprising two side plates (1), characterized in that: A connecting plate (2) is attached to both ends between the two side plates (1), and multiple heat exchange plates (3) are stacked between the two connecting plates (2). An insert plate (4) is integrally provided at both ends of the two connecting plates (2). A slot (6) is provided at both ends of one side of the two side plates (1). A storage slot (8) and a movable slot (9) are sequentially provided at the top of each slot (6). An insert rod (10) is slidably provided inside each movable slot (9). A fixing post (13) is integrally provided at one end of each insert rod (10).

2. A plate heat exchanger according to claim 1, characterized in that: Two side plates (1) and multiple heat exchange plates (3) are provided with through holes (16) of the same size at opposite ends. Half-body threaded rods (14) are installed inside the multiple through holes (16) on the same side. Nuts (15) are threaded onto one end of each of the two half-body threaded rods (14).

3. A plate heat exchanger according to claim 1, characterized in that: Each of the insert rods (10) is fitted with a spring (11) at its outer end, and a pull plate (12) is fixedly provided at one end of each insert rod (10).

4. A plate heat exchanger according to claim 1, characterized in that: Each of the slots (6) has a fixing hole (7) at one end, and the diameter of each fixing hole (7) is the same as the diameter of the fixing post (13).

5. A plate heat exchanger according to claim 1, characterized in that: Each of the insert plates (4) has a connecting hole (5) in the middle, and the diameter of each connecting hole (5) is the same as the diameter of the fixing post (13).

6. A plate heat exchanger according to claim 1, characterized in that: One end of one of the side plates (1) is provided with a pair of hot water connection pipes (17), and a pair of cold water connection pipes (18) are provided below the pair of hot water connection pipes (17).

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