Plate heat exchanger for heat exchange station

Abstract

The utility model discloses a plate heat exchanger for heat exchange station belongs to plate heat exchanger technical field, including heat exchanger main part, the side of heat exchanger main part is provided with high temperature medium inlet pipe, the side of heat exchanger main part is provided with low temperature medium inlet pipe, the side of heat exchanger main part is provided with high temperature medium outlet pipe, the side of heat exchanger main part is provided with low temperature medium outlet pipe. In the utility model, through the cooperation of lower mounting seat, screw hole, upper mounting seat, mounting hole and bolt makes the arc filter cover install in arc filter pipe, when the impeller disc, scraper and filter screen need to be replaced when damage occurs, the bolt of arc filter pipe and arc filter cover side is taken off, the fixing between arc filter pipe and arc filter cover is released, thereby the filter screen, impeller disc, scraper and other structures in the inner chamber of arc filter pipe and arc filter cover are replaced, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger technology, and more specifically, to a plate heat exchanger for heat exchange stations. Background Technology

[0002] Plate heat exchangers are a new type of high-efficiency heat exchanger consisting of a series of metal plates with a certain corrugated shape stacked together. Thin rectangular channels are formed between the various plates, and heat exchange occurs through the plates. Plate heat exchangers are ideal heat exchange equipment, with features such as high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, convenient installation and cleaning, wide application, and long service life.

[0003] A search revealed that utility model patent CN219474364U discloses a steam-water plate heat exchanger for a heat exchange station, comprising a heat exchanger body, a high-temperature medium inlet pipe on the side of the heat exchanger body, and a low-temperature medium inlet pipe on the side of the heat exchanger body. A first flange is provided at one end of each of the high-temperature and low-temperature medium inlet pipes, and a filter mechanism is provided on the first flange. The filter mechanism includes a filter tube, and a drain pipe is provided at the bottom of the filter tube. In this patent, by installing a filter mechanism at the ends of the high-temperature and low-temperature medium inlet pipes on the heat exchanger body, impurities in the heat exchange medium are filtered using a filter screen inside the filter tube, preventing impurities from clogging the heat exchanger body. While the convenience of cleaning residual impurities between the heat exchange plates by disassembling the heat exchanger body is not high, this patent offers good practicality. However, the aforementioned patents have the following shortcomings: when the filter screen and impeller are subjected to prolonged impacts from impurities in the medium, it is inconvenient to replace them after damage, and replacing the entire filtration mechanism is costly, resulting in poor practicality; furthermore, when releasing impurities from the filter tube through the solenoid valve, it is necessary to stop supplying medium to both the high-temperature and low-temperature inlet pipes, otherwise the medium will enter the collection tank along with the impurities, filling the tank and overflowing, requiring repeated dredging of the impurities, which is inconvenient. Therefore, we propose a plate heat exchanger for heat exchange stations. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a plate heat exchanger for heat exchange stations.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A plate heat exchanger for a heat exchange station includes a heat exchanger body. A high-temperature medium inlet pipe and a low-temperature medium inlet pipe are located on the side of the heat exchanger body. A high-temperature medium outlet pipe and a low-temperature medium outlet pipe are also located on the side of the heat exchanger body. Water guide pipes are connected to the ends of both the high-temperature and low-temperature medium inlet pipes. An arc-shaped filter pipe is located in the middle of each of the two water guide pipes. A collection mechanism is located at the bottom of each arc-shaped filter pipe, and an arc-shaped filter cover is installed at the top of each arc-shaped filter pipe. Both the arc-shaped filter tube and the arc-shaped filter cover have an arc-shaped groove at one end of their inner walls. A filter screen is fitted inside the arc-shaped groove. A square groove is opened on the top surface of the arc-shaped filter tube and the bottom surface of the arc-shaped filter cover. A long column is fitted inside the square groove. A rotating rod is rotatably connected to the long column. A scraper is fixedly connected to one end of the rotating rod. The end face of the scraper is in contact with the end face of the filter screen. A flat threaded column is fixedly connected to the other end of the rotating rod. An impeller is fitted on the outside of the flat threaded column. A nut is threaded onto the end of the flat threaded column.

[0007] As a preferred embodiment of this utility model, the collection mechanism includes a first switch valve fixedly installed at the bottom of the arc-shaped filter tube and a suspension rod fixedly connected to both sides of the bottom of the arc-shaped filter tube. The bottom ends of the two suspension rods are fixedly connected to a suspension threaded cap, and the bottom end of the suspension threaded cap is threaded with a collection bucket. The side of the collection bucket is fixedly connected to two handles. The bottom end of the first switch valve is fixedly connected to a temporary storage tube, and the bottom end of the temporary storage tube is fixedly installed with a second switch valve.

[0008] As a preferred embodiment of this utility model, lower mounting seats are fixedly connected to both sides of the top surface of the arc-shaped filter tube, and each of the two lower mounting seats is provided with a screw hole. Upper mounting seats are fixedly connected to both sides of the bottom surface of the arc-shaped filter cover, and each of the two upper mounting seats is provided with a mounting hole. A bolt is fitted into the inner cavity of the mounting hole, and the bottom end of the bolt is threaded into the inner cavity of the screw hole.

[0009] As a preferred embodiment of this utility model, the ends of the high-temperature medium inlet pipe, the low-temperature medium inlet pipe, the high-temperature medium outlet pipe and the low-temperature medium outlet pipe are all fixedly sleeved with a first flange, and both ends of the water guide pipe are fixedly sleeved with a second flange.

[0010] In a preferred embodiment of this utility model, the inner wall of the arc-shaped groove is in contact with the side of the filter screen.

[0011] In a preferred embodiment of this utility model, the inner wall of the square slot is fitted to the side of the end of the long column.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, the arc-shaped filter cover is installed in the arc-shaped filter tube by the cooperation of the lower mounting base, screw hole, upper mounting base, mounting hole and bolt. When the impeller, scraper and filter screen are damaged and need to be replaced, the bolts on the side of the arc-shaped filter tube and the arc-shaped filter cover are removed, thereby releasing the fixation between the arc-shaped filter tube and the arc-shaped filter cover, thereby replacing the filter screen, impeller, scraper and other structures in the inner cavity of the arc-shaped filter tube and the arc-shaped filter cover, reducing the cost of use.

[0014] (2) In this utility model, when it is necessary to discharge the impurities filtered in the inner cavity of the arc-shaped filter tube, the first switch valve is opened first to allow the impurities and a part of the medium to enter the temporary storage tube, then the first switch valve is closed, and then the second switch valve is opened to allow the impurities and medium in the temporary storage tube to fall into the collection bucket for collection. This avoids the problem of having to stop supplying high-temperature and low-temperature media when discharging the medium, and has good practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the arc-shaped filter tube of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the long column of this utility model;

[0019] Figure 5 This is a schematic diagram of the arc-shaped filter cover of this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Heat exchanger body; 2. High-temperature medium inlet pipe; 3. Low-temperature medium inlet pipe; 4. High-temperature medium outlet pipe; 5. Low-temperature medium outlet pipe; 6. Water guide pipe; 7. Arc-shaped filter pipe; 8. Arc-shaped filter cover; 9. Arc-shaped groove; 10. Square groove; 11. Filter screen; 12. Collection mechanism; 13. Long column; 14. Rotating rod; 15. Scraper; 16. Flat threaded column; 17. Impeller disk; 18. Nut; 19. First switching valve; 20. Temporary storage pipe; 21. Second switching valve; 22. Hanging rod; 23. Suspension threaded cover; 24. Collection tank; 25. Handle; 26. Lower mounting base; 27. Screw hole; 28. Upper mounting base; 29. ​​Mounting hole; 30. Bolt; 31. First flange; 32. Second flange. Detailed Implementation

[0022] 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0025] Example 1:

[0026] Please see Figure 1-5A plate heat exchanger for a heat exchange station includes a heat exchanger body 1. A high-temperature medium inlet pipe 2, a low-temperature medium inlet pipe 3, a high-temperature medium outlet pipe 4, and a low-temperature medium outlet pipe 5 are all located on the side of the heat exchanger body 1. Water guide pipes 6 are connected to the ends of both the high-temperature medium inlet pipe 2 and the low-temperature medium inlet pipe 3. Arc-shaped filter pipes 7 are installed in the middle of both water guide pipes 6. A collection mechanism 12 is installed at the bottom of each arc-shaped filter pipe 7. An arc-shaped filter cover 8 is installed at the top of each arc-shaped filter pipe 7. An arc-shaped groove 9 is provided at one end of the inner wall of the arc-shaped filter cover 8. A filter screen 11 is fitted inside the inner cavity of the arc-shaped groove 9. A square groove 10 is provided on the top surface of the arc-shaped filter tube 7 and the bottom surface of the arc-shaped filter cover 8. A long column 13 is fitted inside the inner cavity of the square groove 10. A rotating rod 14 is rotatably connected to the long column 13. A scraper 15 is fixedly connected to one end of the rotating rod 14. The end face of the scraper 15 is in contact with the end face of the filter screen 11. A flat threaded column 16 is fixedly connected to the other end of the rotating rod 14. An impeller 17 is fitted on the outside of the flat threaded column 16. A nut 18 is threaded onto the end of the flat threaded column 16.

[0027] In this embodiment, the heat exchanger body 1 is composed of two base plates, multiple connecting rods, and multiple heat exchange plates, which is a publicly available technology.

[0028] For details, please refer to Figures 1 to 3 The collection mechanism 12 includes a first switch valve 19 fixedly installed at the bottom of the arc-shaped filter tube 7 and a suspension rod 22 fixedly connected to both sides of the bottom of the arc-shaped filter tube 7. The bottom ends of the two suspension rods 22 are fixedly connected to a suspension threaded cap 23. The bottom end of the suspension threaded cap 23 is threadedly installed with a collection bucket 24. The side of the collection bucket 24 is fixedly connected to two handles 25. The bottom end of the first switch valve 19 is fixedly connected to a temporary storage tube 20. The bottom end of the temporary storage tube 20 is fixedly installed with a second switch valve 21.

[0029] In this embodiment, the first switching valve 19 and the second switching valve 21 can be manually operated valve bodies, or they can be electrically controlled valves, in which case the electrically controlled valves are controlled by an external controller.

[0030] For details, please refer to Figure 2 , Figure 3 and Figure 5 The top surface of the arc-shaped filter tube 7 is fixedly connected to two lower mounting bases 26 on both sides. Each of the two lower mounting bases 26 is provided with a screw hole 27. The bottom surface of the arc-shaped filter cover 8 is fixedly connected to two upper mounting bases 28 on both sides. Each of the two upper mounting bases 28 is provided with a mounting hole 29. A bolt 30 is fitted into the inner cavity of the mounting hole 29. The bottom end of the bolt 30 is threaded into the inner cavity of the screw hole 27.

[0031] In this embodiment, the arc-shaped filter cover 8 is installed on the arc-shaped filter tube 7 by the cooperation of the lower mounting base 26, screw hole 27, upper mounting base 28, mounting hole 29 and bolt 30. In addition, the inner diameters of the arc-shaped filter tube 7 and the arc-shaped filter cover 8 are equal, and the two ends of the arc-shaped filter cover 8 are placed on the outside of the two ends of the arc-shaped filter tube 7 to ensure the sealing between the arc-shaped filter tube 7 and the arc-shaped filter cover 8.

[0032] For details, please refer to Figure 1 The ends of the high-temperature medium inlet pipe 2, the low-temperature medium inlet pipe 3, the high-temperature medium outlet pipe 4, and the low-temperature medium outlet pipe 5 are all fixedly fitted with a first flange 31, and the two ends of the water guide pipe 6 are all fixedly fitted with a second flange 32.

[0033] In this embodiment, the water pipe 6 is connected to the high-temperature medium inlet pipe 2 and the low-temperature medium inlet pipe 3 by the cooperation of the second flange 32 and the first flange 31, while ensuring that the other end of the water pipe 6, the high-temperature medium outlet pipe 4 and the low-temperature medium outlet pipe 5 are connected to other pipes.

[0034] For details, please refer to Figure 2 , Figure 3 and Figure 5 The inner wall of the arc-shaped slot 9 fits against the side of the filter screen 11.

[0035] In this embodiment, the stability of the filter screen 11 being fitted into the inner cavity of the arc-shaped slot 9 is ensured.

[0036] For details, please refer to Figures 2 to 5 The inner wall of the square slot 10 fits against the side of the end of the long column 13.

[0037] In this embodiment, the stability of the elongated column 13 being fitted into the square slot 10 on the arc-shaped filter tube 7 and the arc-shaped filter cover 8 is ensured.

[0038] Working principle: In use, water guide pipes 6 are first installed at the ends of the high-temperature medium inlet pipe 2 and the low-temperature medium inlet pipe 3 through the cooperation of the second flange 32, the first flange 31, the fastening bolts, and the fastening nuts. This allows the high-temperature and low-temperature media to be exchanged to enter the two water guide pipes 6 respectively. Impurities in the media are filtered by the arc-shaped filter pipe 7 and the filter screen 11 sandwiched inside the arc-shaped filter cover 8. The filtered high-temperature and low-temperature media enter the heat exchanger body 1 from the high-temperature medium inlet pipe 2 and the low-temperature medium inlet pipe 3 respectively for heat exchange. After heat exchange, the high-temperature and low-temperature media are discharged from the low-temperature medium outlet pipe 5 and the high-temperature medium outlet pipe 4 respectively. Additionally, the flow of the media drives the impeller disk 17, the rotating rod 14, and the scraper 15 to rotate. The scraper 15... The filter surface of the filter screen 11 is scraped to remove the filtered impurities. Additionally, the first switch valve 19 is periodically opened to allow impurities filtered through the inner cavity of the arc-shaped filter tube 7 to fall into the temporary storage tube 20 for temporary storage. When the first switch valve 19 is closed, the second switch valve 21 is opened to allow impurities in the temporary storage tube 20 to fall into the collection bucket 24 for periodic cleaning and emptying. When the impeller disc 17, scraper 15, and filter screen 11 are damaged and need replacement, the bolts 30 on the side of the arc-shaped filter tube 7 and arc-shaped filter cover 8 are removed to release the fixing between the arc-shaped filter tube 7 and arc-shaped filter cover 8. This allows for the replacement of the filter screen 11, impeller disc 17, scraper 15, and other structures within the inner cavity of the arc-shaped filter tube 7 and arc-shaped filter cover 8.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A plate heat exchanger for a heat exchange station, comprising a heat exchanger body (1), characterised in that: The side of the heat exchanger body (1) is provided with a high-temperature medium inlet pipe (2), the side of the heat exchanger body (1) is provided with a low-temperature medium inlet pipe (3), the side of the heat exchanger body (1) is provided with a high-temperature medium outlet pipe (4), the side of the heat exchanger body (1) is provided with a low-temperature medium outlet pipe (5), the end of the high-temperature medium inlet pipe (2) and the low-temperature medium inlet pipe (3) is connected with a water guide pipe (6), the middle part of the two water guide pipes (6) is provided with an arc-shaped filter pipe (7), the bottom of the arc-shaped filter pipe (7) is provided with a collecting mechanism (12), the top of the arc-shaped filter pipe (7) is provided with an arc-shaped filter cover (8), one end of the inner wall of the arc-shaped filter pipe (7) and the arc-shaped filter cover (8) is provided with an arc-shaped clamping groove (9), the arc-shaped clamping groove (9) is provided with a filter screen (11), the top surface of the arc-shaped filter pipe (7) and the bottom surface of the arc-shaped filter cover (8) are provided with a square clamping groove (10), the inner cavity of the square clamping groove (10) is provided with a long column (13), the long column (13) is rotatably connected with a rotating rod (14), one end of the rotating rod (14) is fixedly connected with a scraper (15), the end surface of the scraper (15) is in contact with the end surface of the filter screen (11), the other end of the rotating rod (14) is fixedly connected with a flat threaded column (16), the outer side of the flat threaded column (16) is provided with an impeller disc (17), the end of the flat threaded column (16) is provided with a nut (18).

2. A plate heat exchanger for use in a heat exchange station according to claim 1, characterized in that The collecting mechanism (12) comprises a first switch valve (19) fixedly installed at the bottom of the arc-shaped filter pipe (7) and a hanging rod (22) fixedly connected at the two sides of the bottom of the arc-shaped filter pipe (7), the bottom end of the two hanging rods (22) is fixedly connected with a suspension threaded cover (23), the bottom end of the suspension threaded cover (23) is provided with a collecting barrel (24), the side of the collecting barrel (24) is fixedly connected with two handles (25), the bottom end of the first switch valve (19) is fixedly connected with a temporary storage pipe (20), the bottom end of the temporary storage pipe (20) is fixedly installed with a second switch valve (21).

3. A plate heat exchanger for use in a heat exchange station according to claim 1, characterized in that: The two sides of the top surface of the arc-shaped filter pipe (7) are respectively fixedly connected with a lower mounting seat (26), the two lower mounting seats (26) are respectively provided with a screw hole (27), the two sides of the bottom surface of the arc-shaped filter cover (8) are respectively fixedly connected with an upper mounting seat (28), the two upper mounting seats (28) are respectively provided with a mounting hole (29), the inner cavity of the mounting hole (29) is provided with a bolt (30), the bottom end of the bolt (30) is threadedly installed into the inner cavity of the screw hole (27).

4. A plate heat exchanger for use in a heat exchange station according to claim 1, characterized in that: The end of the high-temperature medium inlet pipe (2), the low-temperature medium inlet pipe (3), the high-temperature medium outlet pipe (4) and the low-temperature medium outlet pipe (5) is fixedly sleeved with a first flange (31), the two ends of the water guide pipe (6) are fixedly sleeved with a second flange (32).

5. A plate heat exchanger for use in a heat exchange station according to claim 1, characterized in that: The inner wall of the arc-shaped clamping groove (9) and the side of the filter screen (11) are in close contact.

6. A plate heat exchanger for use in a heat exchange station according to claim 1, characterized in that: The inner wall of the square clamping groove (10) and the side of the end of the long column (13) are in close contact.

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