Plate heat exchanger for swimming pools

Abstract

The utility model provides a plate heat exchanger for swimming pool relates to plate heat exchanger technical field, the utility model discloses a frame board, one side fixedly connected with input pipe, output pipe, water inlet pipe and water outlet pipe of frame board, the outer surface of input pipe and water inlet pipe is provided with buffer device, the buffer device includes a round pipe and two slot disc, and the one end away from the ring of sliding block is provided with rubber block, the outer surface fixedly connected with a plurality of rectangular blocks of slot disc, the utility model discloses a buffer device is set, when the vibration that the pipeline produces in the input pipe or water inlet pipe place is received outside pump machine operation, the slot disc of the round pipe relative to both ends connection outside conveying pipeline or input pipe and water inlet pipe can take place small displacement, and the spring of round pipe outer surface and the rubber block of sliding block one end carry out the buffer to vibration, avoid the pipeline and the slot disc of input pipe or water inlet pipe place connection and the connection of input pipe or water inlet pipe to receive the direct stress that produces because of vibration.

Description

Technical Field

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

[0002] Plate heat exchangers consist of a series of metal plates with a certain corrugated shape stacked together. Thin rectangular channels are formed between the plates, and heat exchange occurs through the plates. In swimming pool applications, boiler water flows on one side of the heat exchange plates, and pool water flows on the other side. Heat is transferred from the heat transfer medium to the pool water through the plates, thereby heating or cooling the pool water.

[0003] When using plate heat exchangers, external water and heat transfer medium are typically delivered to the heat exchanger via a pump. During pump operation, the interaction between the impeller rotation and water flow, the imbalance of the motor rotor, and bearing friction generate periodic vibrations. These vibrations are transmitted to the pipeline through the connection between the pump and the pipes, causing the pipes to undergo slight displacement or deformation due to the vibrations, which in turn generates stress. Especially at the heat transfer medium delivery pipes and pool water inlet pipes, the fluid entering the pipes is prone to forming turbulence or eddies, which continuously impact the plates at the heat exchanger inlet and the pipe interfaces, leading to accumulated vibration stress, resulting in leaks, equipment damage, and a reduced service life of the heat exchanger. Utility Model Content

[0004] The purpose of this invention is to address the problem that vibrations generated by the pump during the use of plate heat exchangers are transmitted to the pipeline through the connection between the pump and the pipeline, causing the pipeline to undergo slight displacement or deformation due to vibration, which in turn generates stress. Especially at the heat medium delivery pipe and the pool water inlet pipe, the fluid entering the pipeline is prone to forming turbulence or eddies, which continuously impacts the plates at the heat exchanger inlet and the pipe interface, leading to the accumulation of vibration stress, causing leakage, equipment damage, and a reduction in the service life of the heat exchanger. Therefore, this invention proposes a plate heat exchanger for swimming pools.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plate heat exchanger for swimming pools, comprising two frame plates, with several baffles threaded between the two frame plates, and several plates arranged linearly on one side of each frame plate. Baffles are mounted on the outer surfaces of the baffles via fasteners. A plate is fixed between a frame plate and a baffle via fasteners. An input pipe, an output pipe, a water inlet pipe, and a water outlet pipe are fixedly connected to one side of each frame plate. The outer surfaces of the input pipe and the water inlet pipe are provided with buffer devices to cushion vibrations generated at the input pipe and the water inlet pipe.

[0006] Furthermore, the buffer device includes a circular tube and two grooved discs. The outer surface of the grooved discs has several through holes, and the inside of the grooved discs has circular grooves. The two ends of the circular tube are respectively fixedly connected to circular rings, and the circular rings at both ends of the circular tube are respectively located in the circular grooves inside the two grooved discs. The inner wall of the circular grooves has several rectangular grooves. The outer surface of the circular rings is fixedly connected to several sliders, and the sliders are located inside the rectangular grooves. A rubber block is provided at the end of the slider away from the circular ring. The outer surface of the grooved discs is fixedly connected to several rectangular blocks. The two ends of the circular tube are respectively provided with several springs, and the two ends of the springs are respectively fixedly connected to one side of the rectangular block and the outer surface of the circular tube.

[0007] Furthermore, several round rods are fixedly connected to the outer surface of the round tube, and the ends of the round rods away from the round tube slide on the inner wall of the rectangular block.

[0008] Furthermore, a number of positioning blocks are fixedly connected to the outer surface of the circular tube, with the end of the positioning block away from the circular tube attached to the outer surface of the groove.

[0009] Furthermore, a support rod is fixedly connected to the end of the round rod away from the round tube, and the end of the support rod away from the round rod is fixedly connected to the outer surface of the round tube.

[0010] Furthermore, a collar is fixedly connected to the outer surface of the slot, and the length of the collar is twice that of the slot.

[0011] Furthermore, the inner wall of the collar is rotatably connected to several rotating shafts, each rotating shaft being at the same horizontal line as each through hole on the outer surface of the groove plate. One end of each rotating shaft is provided with a coil spring, and the two ends of the coil spring are respectively fixedly connected to one side of the rotating shaft and one side of the inner wall of the collar. One end of the rotating shaft is fixedly connected to a cover plate.

[0012] Furthermore, a rubber sleeve is fixedly connected to one end of the rotating shaft, and the outer surface of the sleeve is provided with several protrusions.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, a buffer device is installed. The heat transfer medium and pool water delivery pipelines are connected to the input pipe and inlet pipe via grooved plates at both ends of the circular pipe as connectors. When the input pipe or inlet pipe is subjected to vibration caused by the operation of an external pump, the circular pipe can undergo a small displacement relative to the grooved plates at both ends that connect to the external delivery pipelines or the input pipe and inlet pipe. The vibration is buffered by the spring on the outer surface of the circular pipe and the rubber block at one end of the slider, thus preventing the pipelines connected to the input pipe or inlet pipe and the connection between the grooved plates and the input pipe or inlet pipe from being subjected to direct stress caused by vibration. This improves the stability and service life of the connection structure of the pipeline system in the plate heat exchanger. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the frame plate of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the circular tube portion of this utility model;

[0018] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the groove plate of this utility model;

[0019] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the groove plate of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the support rod of this utility model.

[0021] Legend: 1. Frame plate; 2. Buffer device; 21. Round tube; 22. Groove; 23. Round groove; 24. Circular ring; 25. Rectangular groove; 26. Slider; 27. Rectangular block; 28. Spring; 29. ​​Round rod; 210. Support rod; 211. Positioning block; 212. Rotating shaft; 213. Coil spring; 214. Cover plate; 215. Collar; 216. Sleeve; 3. Stop bar; 4. Plate; 5. Baffle; 6. Input pipe; 7. Output pipe; 8. Inlet pipe; 9. Outlet pipe. Detailed Implementation

[0022] Example 1, such as Figure 1-2 As shown, a plate heat exchanger for swimming pools includes two frame plates 1. Several baffles 3 are threadedly connected between the two frame plates 1. Several plates 4 are arranged linearly on one side of the frame plate 1. Baffles 5 are installed on the outer surface of the baffles 3 by fasteners. The plates 4 are located between a frame plate 1 and a baffle 5 and are fixed in position by fasteners. An inlet pipe 6, an outlet pipe 7, an inlet pipe 8 and an outlet pipe 9 are fixedly connected to one side of a frame plate 1. The outer surfaces of the inlet pipe 6 and the inlet pipe 8 are provided with buffer devices 2 that can buffer the vibration generated at the inlet pipe 6 and the inlet pipe 8.

[0023] Reference Figure 1-5As shown in this embodiment: the buffer device 2 includes a circular tube 21 and two grooved plates 22. The outer surface of the grooved plate 22 has several through holes, and the interior of the grooved plate 22 has a circular groove 23. Circular rings 24 are fixedly connected to both ends of the circular tube 21, and the circular rings 24 at both ends of the circular tube 21 are respectively located within the circular grooves 23 inside the two grooved plates 22. The inner wall of the circular groove 23 has several rectangular grooves 25. Several sliders 26 are fixedly connected to the outer surface of the circular rings 24, and the sliders 26 are located inside the rectangular grooves 25. A rubber block is provided at the end of the slider 26 away from the circular ring 24. Several rectangular blocks 27 are fixedly connected to the outer surface of the grooved plate 22. Several springs 28 are respectively provided at both ends of the circular tube 21, and the two ends of the springs 28 are respectively connected to the rectangular blocks 27. One side of the round tube 21 is fixedly connected to the outer surface of the round tube 21. By setting the round tube 21, when installing the plate heat exchanger, several plates 4 are fitted onto one side of a frame plate 1. The position of the plates 4 is restricted by threading the baffle 3 to the two frame rods. The baffle 5 is attached to the outer side of a plate 4 away from the frame plate 1. Fasteners are used to connect the baffle 5 to the frame plate 1. Then, at the inlet pipe 6 and the water inlet pipe 8, the groove plate 22 at one end of the round tube 21 is attached to the outer surface of the flange of the inlet pipe 6 and the water inlet pipe 8, respectively. Bolts are used to pass through the through holes on the outer surface of the groove plate 22 and connect to the flange on the outer surface of the inlet pipe 6 and the water inlet pipe 8. Then, the heat medium conveying pipe is connected to the groove plate 22 at the other end of the round tube 21 connected to the outer side of the inlet pipe 6 through the flange. The pool water conveying pipe is connected to the... The other end of the circular pipe 21 connected to the outside of the inlet pipe 8 is connected to the groove 22. The heat medium receiving pipe is connected to the outlet pipe 7, and the pool water receiving pipe is connected to the outlet pipe 9. Then, the heat medium is transported to the inlet pipe 6 through the pipe and the circular pipe 21 by the external pump and enters the plate 4. The pool water is transported to the inlet pipe 8 by the external pump. The heat medium and the pool water will flow on both sides of the outer surface of the plate 4. The heat in the heat medium will be transferred to the plate 4, and then the heat will be conducted to the pool water for heat exchange. After the heat exchange is completed, the heat medium will be output through the outlet pipe 7, and the heated pool water will be output through the outlet pipe 9. When the pipe at the connection between the inlet pipe 6 and the inlet pipe 8 vibrates, the circular rings 24 at both ends of the circular pipe 21 will be inside the two grooves 22. The circular groove 23 moves in the direction of vibration, and the slider 26 slides inside the rectangular groove 25. When one end of the slider 26 contacts the inner wall of the rectangular groove 25, it compresses the rubber block at one end of the slider 26. At the same time, the spring 28 on the outer surface of the circular tube 21 in the direction of movement is compressed, and the spring 28 in the other direction is stretched. When the input pipe 6 or the water inlet pipe 8 is vibrated, the circular tube 21 can undergo a small displacement relative to the groove plate 22 connecting the outer conveying pipes or the input pipe 6 and the water inlet pipe 8 at both ends. The vibration is buffered by the spring 28 on the outer surface of the circular tube 21 and the rubber block at one end of the slider 26. After the external force disappears, the spring 28 returns to its original shape and pushes the circular tube 21 to move back to the initial position relative to the groove plates 22 on both sides. By setting the buffer device 2,By connecting the heat transfer medium and pool water delivery pipelines to the input pipe 6 and inlet pipe 8 via the grooved plates 22 at both ends of the circular pipe 21 as connectors, when the input pipe 6 or inlet pipe 8 is subjected to vibrations caused by the operation of an external pump, the circular pipe 21 can undergo a small displacement relative to the grooved plates 22 connecting the external delivery pipelines or the input pipe 6 and inlet pipe 8. The vibration is buffered by the spring 28 on the outer surface of the circular pipe 21 and the rubber block at one end of the slider 26, preventing direct stress caused by vibration on the pipelines connected to the input pipe 6 or inlet pipe 8 and at the connection points of the grooved plates 22 and the input pipe 6 or inlet pipe 8. This improves the stability and service life of the pipeline system connection structure in the plate heat exchanger.

[0024] Reference Figure 2-6 As shown in this embodiment: several round rods 29 are fixedly connected to the outer surface of the round tube 21. The end of the round rod 29 away from the round tube 21 slides on the inner wall of the rectangular block 27. The spring 28 is sleeved on the outside of the round rod 29. When the round tube 21 shifts relative to the groove plate 22, the round rod 29 will slide on the inner wall of the rectangular block 27. The round rod 29 can reinforce the internal shape of the spring 28, so that the spring 28 will not twist laterally when subjected to force, thus ensuring the performance of the spring 28. Several positioning blocks 211 are fixedly connected to the outer surface of the round tube 21. The end of the positioning block 211 away from the round tube 21 is attached to the outer surface of the groove plate 22. When the round tube 21 shifts relative to the groove plate 22, the end of the positioning block 211 away from the round tube 21 will slide on the outer surface of the groove plate 22. The positioning block 211 can further limit the angle between the round tube 21 and the groove plate 22, thus preventing the angle between the round tube 21 and the groove plate 22 from deflecting.

[0025] Reference Figure 2-6 As shown in this embodiment: a support rod 210 is fixedly connected to the end of the round rod 29 away from the round tube 21, and the end of the support rod 210 away from the round rod 29 is fixedly connected to the outer surface of the round tube 21. By setting the support rod 210, the shape and structure of the outer surface of the round tube 21 can be reinforced, and deformation of the outer surface shape of the round tube 21 due to uneven force at both ends of the round tube 21 can be avoided as much as possible. A collar 215 is fixedly connected to the outer surface of the groove 22. The length of the collar 215 is twice that of the groove 22. When the round tube 21 is connected to the flange at the input pipe 6 or the water inlet pipe 8 and the conveying pipe through the groove 22, the collar 215 on the outer surface of the groove 22 can be put on the outside of the corresponding flange, which is convenient for limiting the angle between the groove 22 and the flange, facilitating installation and further limiting the angle between the groove 22 and the flange after installation.

[0026] Reference Figure 2-6As shown in this embodiment: A plurality of rotating shafts 212 are rotatably connected to the inner wall of the collar 215. Each rotating shaft 212 is on the same horizontal line as each through hole on the outer surface of the grooved plate 22. A coil spring 213 is provided at one end of each rotating shaft 212. The two ends of the coil spring 213 are fixedly connected to one side of the rotating shaft 212 and one side of the inner wall of the collar 215, respectively. A cover plate 214 is fixedly connected to one end of each rotating shaft 212. When bolts are used to connect the grooved plate 22 to the flange through the outer surface of the grooved plate 22, rotating the rotating shaft 212 at the corresponding position outside the through hole at the bolt insertion position controls the rotating shaft 212 to drive the cover plate 214 to rotate away from the through hole. Next, the bolt is inserted into the through hole and connected to the flange. After the connection is completed, the coil spring 213 on the outer surface of the rotating shaft 212 is released and returns to its original state, which will drive the rotating shaft 212 and the cover plate 214 to rotate in the original direction, so that the cover plate 214 is located outside the head of the bolt, further tightening the position of the bolt and further reducing the risk of the bolt loosening due to vibration. One end of the rotating shaft 212 is fixedly connected to a rubber sleeve 216. The outer surface of the sleeve 216 is provided with several protrusions. By pinching the protrusions on the outer surface of the rubber sleeve 216, it is easier to control the rotation of the rotating shaft 212 and it is not easy to slip.

[0027] Working principle: When installing the plate heat exchanger, several plates 4 are fitted onto one side of a frame plate 1. The position of the plates 4 is restricted by threaded connection of the baffle 3 to the two frame rods. The baffle 5 is attached to the outer side of a plate 4 away from the frame plate 1. Fasteners are used to connect the baffle 5 to the frame plate 1. Then, at the inlet pipe 6 and the water inlet pipe 8, a grooved plate 22 at one end of a round pipe 21 is attached to the outer surface of the flange of the inlet pipe 6 and the water inlet pipe 8, respectively. When connecting the grooved plate 22 to the flange by passing bolts through the outer surface of the grooved plate 22, the rotating shaft 212 at the corresponding position on the outside of the through hole at the bolt insertion position is rotated. The rotating shaft 212 drives the cover plate 214 to rotate away from the through hole. Then, the bolts are inserted through the groove 22 into the through hole and connected to the flange. After the connection is completed, the coil spring 213 on the outer surface of the rotating shaft 212 is released and returns to its original position, which will drive the rotating shaft 212 and the cover plate 214 to rotate in the original direction, so that the cover plate 214 is located outside the bolt head, further tightening the position of the bolt. Then, the heat medium delivery pipe is connected to the groove 22 at the other end of the round pipe 21 connected to the outside of the inlet pipe 6 through the flange, and the pool water delivery pipe is connected to the groove 22 at the other end of the round pipe 21 connected to the outside of the inlet pipe 8 through the flange. The heat medium receiving pipe is connected to the output pipe 7, and the pool water receiving pipe is connected to the outlet pipe 9. Then, through the outer... The pump delivers the heat medium through the pipe and the circular pipe 21 to the input pipe 6, entering the interior of the plate 4. The pool water is delivered to the inlet pipe 8 by the external pump. The heat medium and the pool water flow on opposite sides of the outer surface of the plate 4. The heat in the heat medium is transferred to the plate 4, and then the heat is conducted to the pool water for heat exchange. After the heat exchange is completed, the heat medium is output through the output pipe 7, and the heated pool water is output through the outlet pipe 9. When the pipe at the connection between the input pipe 6 and the inlet pipe 8 vibrates, the rings 24 at both ends of the circular pipe 21 move in the direction of vibration within the circular grooves 23 inside the two slots 22, and the slider 26 moves in the rectangular groove. When the slider 26 contacts the inner wall of the rectangular groove 25, it will compress the rubber block at one end of the slider 26. At the same time, the spring 28 on the outer surface of the round tube 21 in the direction of movement will be compressed, and the spring 28 in the other direction will be stretched. When the input pipe 6 or the water inlet pipe 8 is vibrated, the round tube 21 can undergo a small displacement relative to the groove plate 22 connecting the outer conveying pipes or the input pipe 6 and the water inlet pipe 8 at both ends. The vibration is buffered by the spring 28 on the outer surface of the round tube 21 and the rubber block at one end of the slider 26. After the external force disappears, the spring 28 returns to its original shape and pushes the round tube 21 to move back to the initial position relative to the groove plates 22 on both sides.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A plate heat exchanger for swimming pools, comprising two frame plates (1), characterized in that: Several baffles (3) are threaded between the two frame plates (1). Several plates (4) are provided on one side of the frame plate (1). The plates (4) are arranged linearly on one side of the frame plate (1). A baffle (5) is installed on the outer surface of the baffle (3) by fasteners. The plates (4) are located between a frame plate (1) and a baffle (5) and are fixed in position by fasteners. An input pipe (6), an output pipe (7), a water inlet pipe (8) and a water outlet pipe (9) are fixedly connected to one side of a frame plate (1). A buffer device (2) is provided on the outer surface of the input pipe (6) and the water inlet pipe (8) to buffer the vibration generated at the input pipe (6) and the water inlet pipe (8).

2. The plate heat exchanger for swimming pools according to claim 1, characterized in that: The buffer device (2) includes a circular tube (21) and two slotted plates (22). Several through holes are opened on the outer surface of the slotted plate (22). A circular groove (23) is opened inside the slotted plate (22). A circular ring (24) is fixedly connected to both ends of the circular tube (21). The circular rings (24) at both ends of the circular tube (21) are located in the circular grooves (23) inside the two slotted plates (22). Several rectangular grooves (25) are opened on the inner wall of the circular groove (23). Several sliders (26) are fixedly connected to the outer surface of the circular ring (24). The sliders (26) are located inside the rectangular grooves (25). A rubber block is provided at the end of the slider (26) away from the circular ring (24). Several rectangular blocks (27) are fixedly connected to the outer surface of the slotted plate (22). Several springs (28) are provided at both ends of the circular tube (21). The two ends of the springs (28) are fixedly connected to one side of the rectangular block (27) and the outer surface of the circular tube (21).

3. The plate heat exchanger for swimming pools according to claim 2, characterized in that: Several round rods (29) are fixedly connected to the outer surface of the round tube (21), and the end of the round rod (29) away from the round tube (21) slides on the inner wall of the rectangular block (27).

4. The plate heat exchanger for swimming pools according to claim 3, characterized in that: A number of positioning blocks (211) are fixedly connected to the outer surface of the circular tube (21), and the end of the positioning block (211) away from the circular tube (21) is attached to the outer surface of the groove plate (22).

5. The plate heat exchanger for swimming pools according to claim 4, characterized in that: The end of the round rod (29) away from the round tube (21) is fixedly connected to a support rod (210), and the end of the support rod (210) away from the round rod (29) is fixedly connected to the outer surface of the round tube (21).

6. The plate heat exchanger for swimming pools according to claim 5, characterized in that: A collar (215) is fixedly connected to the outer surface of the groove (22), and the length of the collar (215) is twice that of the groove (22).

7. The plate heat exchanger for swimming pools according to claim 6, characterized in that: The inner wall of the collar (215) is rotatably connected to several rotating shafts (212). Each rotating shaft (212) is on the same horizontal line as each through hole on the outer surface of the groove plate (22). One end of the rotating shaft (212) is provided with a coil spring (213). The two ends of the coil spring (213) are fixedly connected to one side of the rotating shaft (212) and one side of the inner wall of the collar (215), respectively. One end of the rotating shaft (212) is fixedly connected to a cover plate (214).

8. The plate heat exchanger for swimming pools according to claim 7, characterized in that: One end of the rotating shaft (212) is fixedly connected to a rubber sleeve (216), and the outer surface of the sleeve (216) is provided with several protrusions.

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