Water storage type heat exchanger

Abstract

The water storage type heat exchanger comprises a main body, a warm water inlet and a warm water outlet, the warm water inlet and the warm water outlet are formed in the surface of the right side of the main body, a water storage bin is formed in the main body, a U-shaped heat exchange pipe is arranged in the water storage bin, and a filtering bin is further formed in the side, opposite to the water storage bin, in the main body. A top sealing plate is arranged on the top surface of the main body, a filter frame is fixed to the bottom surface of the top sealing plate, and a metal filter screen is arranged on the inner side of the filter frame; according to the water storage type heat exchanger, a water storage type heat exchanger in the prior art is improved and optimized, and the filter bin, the responding filter frame and the metal filter screen are designed in the main body, so that water can be filtered to a certain extent before entering the water storage bin, and the cleanliness of the water entering the water storage bin is guaranteed; in the later period, the filter frame and the metal filter screen only need to be regularly pulled out for cleaning and maintenance, meanwhile, the filter frame and the metal filter screen can be quickly detached by hands for cleaning or replacement in the later period, and the maintenance convenience is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and in particular relates to a water storage type heat exchanger. Background Art

[0002] A water storage heat exchanger is a device that uses water as a heat transfer medium and stores a large amount of water to achieve heat storage and transfer. The principle of a water storage heat exchanger is to heat the water in the water storage tank through a heat exchanger, and then exchange hot water through a water pump to provide heat. It consists of a water tank, a heat exchanger, and a water pump. As disclosed in the existing patent with publication number CN214536867U, "a water storage heat exchanger includes a casing, a cold water inlet is inserted and connected to the left side of the top of the casing, a cold water outlet is provided on the right side of the cold water inlet, and the lower end of the cold water outlet is inserted and connected to the casing, and a warm water outlet is connected through one side of the casing, a warm water inlet is provided at the lower end of the warm water outlet, and the inner side of the warm water inlet is inserted and connected to the casing", it can be seen that the application describes a common water storage heat exchanger;

[0003] In actual use, the water storage type heat exchanger in the above patent has no structure designed to filter water inside, which may cause the water tank to be easily blocked due to unclean water, affecting the normal operation of the water storage type heat exchanger. There is room for improvement. For this reason, the utility model proposes a water storage type heat exchanger. Utility Model Content

[0004] The purpose of the utility model is to provide a water storage type heat exchanger to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water storage type heat exchanger, comprising a main body and a warm water inlet and a warm water outlet arranged on the right side surface of the main body, a water storage bin is provided inside the main body, a U-shaped heat exchange tube is provided in the water storage bin, a cold water outlet and a cold water inlet are provided at both ends of the U-shaped heat exchange tube, and the cold water outlet and the cold water inlet both pass through the top of the main body, a filter bin is also provided on the side of the main body opposite to the water storage bin, and a through opening is provided between the filter bin and the water storage bin, a top sealing plate is provided on the top surface of the main body, a filter frame is fixed on the bottom surface of the top sealing plate, and a metal filter screen is provided on the inner side of the filter frame, a socket communicating with the filter bin is provided on the top surface of the main body, and the filter frame and the metal filter screen are connected by plugging The mouth passes through the filter bin, and a limiting structure corresponding to the top sealing plate is also provided on the top of the main body, and the limiting structure includes a movable cylinder seat, a pressure plate, a cylindrical inner groove, a circular inner base block, a spring and a cylindrical connecting rod. The movable cylinder seat is arranged on the left side of the top sealing plate, and a cylindrical inner groove is opened in the movable cylinder seat, a circular inner base block and a spring are arranged in the cylindrical inner groove, a cylindrical connecting rod is fixed on the bottom surface of the circular inner base block, and the bottom end of the cylindrical connecting rod passes through the bottom of the movable cylinder seat and is fixed to the top surface of the main body, a pressure plate is fixed on the surface of the movable cylinder seat, and the pressure plate is pressed on the top surface of the top sealing plate, a limiting block is fixed on the bottom surface of the pressure plate, a limiting groove corresponding to the limiting block is opened on the top surface of the top sealing plate, and the limiting block is embedded in the limiting groove.

[0006] Preferably, the top end of the spring abuts against the bottom surface of the circular inner base block, and the bottom end of the spring abuts against the inner wall of the bottom end of the cylindrical inner groove.

[0007] Preferably, a circular bottom hole communicating with the cylindrical inner groove is formed on the bottom surface of the movable cylinder seat, and the circular bottom hole is adapted to the cylindrical connecting rod.

[0008] Preferably, a rectangular top groove is provided at the top of the socket, and a circular rubber ring is installed in the rectangular top groove, a circular sealing strip is provided on the inner wall of the circular rubber ring, and the circular sealing strip is tightly attached to the filter frame, the circular rubber ring and the circular sealing strip are an integrated structure, and a circular cavity is provided in the circular rubber ring.

[0009] Preferably, two strip-shaped supports are provided on the bottom surface of the main body.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model improves and optimizes the water storage type heat exchanger in the prior art, and designs a filter bin and a corresponding filter frame and a metal filter screen in the main body, so that water can be filtered to a certain extent before entering the water storage bin, thereby ensuring the cleanliness of the water entering the water storage bin. In the later stage, it is only necessary to regularly pull out the filter frame and the metal filter screen for cleaning and maintenance. At the same time, the filter frame and the metal filter screen can be quickly removed by hand for cleaning or replacement in the later stage, which is easy to maintain and ensures the stable operation of the water storage type heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 It is a cross-sectional view of the utility model;

[0013] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A area;

[0014] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle B area;

[0015] In the figure: 1. main body; 11. water storage tank; 12. filter tank; 13. U-shaped heat exchange tube; 14. rectangular top groove; 15. circular rubber ring; 16. circular sealing strip; 17. socket; 2. warm water inlet; 3. warm water outlet; 4. cold water outlet; 5. cold water inlet; 6. top sealing plate; 61. filter frame; 62. metal filter; 71. movable cylinder seat; 72. pressure plate; 73. limit block; 74. limit groove; 75. cylindrical inner groove; 76. circular inner base block; 77. spring; 78. cylindrical connecting rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0017] See also Figures 1 to 3, which is the first embodiment of the utility model, and this embodiment provides a technical solution: a water storage type heat exchanger, comprising a main body 1 and a warm water inlet 2 and a warm water outlet 3 arranged on the right side surface of the main body 1, a water storage tank 11 is opened inside the main body 1, a U-shaped heat exchange tube 13 is arranged in the water storage tank 11, and a cold water outlet 4 and a cold water inlet 5 are respectively arranged at both ends of the U-shaped heat exchange tube 13, and the cold water outlet 4 and the cold water inlet 5 are both penetrated to the top of the main body 1. When in use, warm water will enter the water storage tank 11 through the warm water inlet 2 for storage, and cold water will enter the U-shaped heat exchange tube 13 through the cold water inlet 5 and flow and finally flow out from the cold water outlet 4. During the flow of cold water, it will exchange heat with the warm water stored in the water storage tank 11. The interior of the main body 1 A filter bin 12 is also provided on one side relative to the water storage bin 11, and a through hole is provided between the filter bin 12 and the water storage bin 11 for the circulation of water inside the two. A top sealing plate 6 is provided on the top surface of the main body 1, a filter frame 61 is welded and fixed on the bottom surface of the top sealing plate 6, and a metal filter screen 62 is provided on the inner side of the filter frame 61. A socket 17 communicating with the filter bin 12 is provided on the top surface of the main body 1, and the filter frame 61 and the metal filter screen 62 are penetrated into the filter bin 12 through the socket 17, so that after the warm water enters the filter bin 12 through the warm water inlet 2, it can be filtered by the metal filter screen 62 first, and some large particles of impurities in the water are filtered out to ensure the cleanliness of the water entering the water storage bin 11. In the later stage, it is only necessary to regularly pull out the filter frame 61 and the metal filter screen 62. The top of the main body 1 is also provided with a limiting structure corresponding to the top sealing plate 6, the limiting structure includes a movable cylinder seat 71, a pressure plate 72, a cylindrical inner groove 75, a circular inner base block 76, a spring 77 and a cylindrical connecting rod 78. The movable cylinder seat 71 is arranged on the left side of the top sealing plate 6, and a cylindrical inner groove 75 is opened in the movable cylinder seat 71, a circular inner base block 76 and a spring 77 are arranged in the cylindrical inner groove 75, a cylindrical connecting rod 78 is fixed to the bottom surface of the circular inner base block 76, and the bottom end of the cylindrical connecting rod 78 passes through the bottom of the movable cylinder seat 71 and is fixed to the top surface of the main body 1, a pressure plate 72 is welded and fixed to the surface of the movable cylinder seat 71, and the pressure plate 72 is pressed on the top surface of the top sealing plate 6, and the bottom surface of the pressure plate 72 is welded and fixed The limit block 73 and the top surface of the top sealing plate 6 are provided with a limit groove 74 corresponding to the limit block 73. The limit block 73 is embedded in the limit groove 74, so that the pressure plate 72 will not rotate away from the top of the top sealing plate 6 by itself during daily use. If the filter frame 61 needs to be pulled out for cleaning and replacement in the later stage, it is only necessary to lift the movable cylinder seat 71 first so that the spring 77 is compressed, causing the pressure plate 72 and the limit block 73 to move up until the limit block 73 moves out of the limit groove 74. At this time, the movable cylinder seat 71 can be rotated so that the pressure plate 72 is rotated away from the top of the top sealing plate 6, and no limitation or obstruction will be caused to the top sealing plate 6. At this time, the top sealing plate 6 can be lifted, and the filter frame 61 and the metal filter screen 62 can be smoothly pulled out for cleaning or replacement.

[0018] The top end of the spring 77 abuts against the bottom surface of the circular inner base block 76 , and the bottom end of the spring 77 abuts against the bottom inner wall of the cylindrical inner groove 75 .

[0019] The bottom surface of the movable cylinder seat 71 is provided with a circular bottom hole communicating with the cylindrical inner groove 75 , and the circular bottom hole is adapted to the cylindrical connecting rod 78 so that the cylindrical connecting rod 78 can pass through smoothly.

[0020] Among them, two strip-shaped supports are welded on the bottom surface of the main body 1 to effectively support the main body 1. Example

[0021] See also Figures 1 to 4 , which is the second embodiment of the utility model, is based on the previous embodiment, and the difference is that the sealing performance of the top sealing plate 6 and the filter frame 61 after installation can be improved by providing a rectangular top groove 14 and a circular rubber ring 15.

[0022] Specifically, a rectangular top groove 14 is provided at the top of the socket 17, and a circular rubber ring 15 is installed in the rectangular top groove 14. A circular sealing strip 16 is provided on the inner wall of the circular rubber ring 15, and the circular sealing strip 16 is in close contact with the filter frame 61, which can improve the sealing performance of the top sealing plate 6 and the filter frame 61 after installation. The circular rubber ring 15 and the circular sealing strip 16 are an integrated structure, both of which are made of fluororubber and will undergo elastic deformation when squeezed. A circular cavity is provided in the circular rubber ring 15, so that the circular sealing strip 16 has sufficient deformation space when squeezed.

[0023] Although the embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water storage type heat exchanger, comprising a main body (1) and a warm water inlet (2) and a warm water outlet (3) arranged on the right side surface of the main body (1), wherein a water storage tank (11) is provided inside the main body (1), a U-shaped heat exchange tube (13) is provided inside the water storage tank (11), a cold water outlet (4) and a cold water inlet (5) are provided at both ends of the U-shaped heat exchange tube (13), and both the cold water outlet (4) and the cold water inlet (5) penetrate to the top of the main body (1), characterized in that: A filter bin (12) is provided on a side of the main body (1) opposite to the water storage bin (11), and a through opening is provided between the filter bin (12) and the water storage bin (11). A top sealing plate (6) is provided on the top surface of the main body (1), a filter frame (61) is fixed on the bottom surface of the top sealing plate (6), and a metal filter screen (62) is provided on the inner side of the filter frame (61). A socket (17) communicating with the filter bin (12) is provided on the top surface of the main body (1), and the filter frame (61) and the metal filter screen (62) penetrate into the filter bin (12) through the socket (17). A limit structure corresponding to the top sealing plate (6) is also provided on the top of the main body (1).

2. A water storage heat exchanger according to claim 1, characterized in that: The limiting structure comprises a movable cylinder seat (71), a pressure plate (72), a cylindrical inner groove (75), a circular inner base block (76), a spring (77) and a cylindrical connecting rod (78); the movable cylinder seat (71) is arranged on the left side of the top sealing plate (6); a cylindrical inner groove (75) is provided in the movable cylinder seat (71); a circular inner base block (76) and a spring (77) are provided in the cylindrical inner groove (75); a cylindrical connecting rod (78) is fixed to the bottom surface of the circular inner base block (76); the bottom end of the cylindrical connecting rod (78) passes through the bottom of the movable cylinder seat (71) and is fixed to the top surface of the main body (1); a pressure plate (72) is fixed to the surface of the movable cylinder seat (71); and the pressure plate (72) is pressed on the top surface of the top sealing plate (6).

3. A water storage heat exchanger according to claim 2, characterized in that: A limiting block (73) is fixed on the bottom surface of the pressing plate (72), a limiting groove (74) corresponding to the limiting block (73) is formed on the top surface of the top sealing plate (6), and the limiting block (73) is embedded in the limiting groove (74).

4. The water storage heat exchanger according to claim 2, characterized in that: The top end of the spring (77) abuts against the bottom surface of the circular inner base block (76), and the bottom end of the spring (77) abuts against the inner wall of the bottom end of the cylindrical inner groove (75).

5. The water storage heat exchanger according to claim 2, characterized in that: The bottom surface of the movable cylinder seat (71) is provided with a circular bottom hole communicating with the cylindrical inner groove (75), and the circular bottom hole is adapted to fit the cylindrical connecting rod (78).

6. The water storage heat exchanger according to claim 1, characterized in that: A rectangular top groove (14) is provided at the top of the socket (17), and a circular rubber ring (15) is installed in the rectangular top groove (14). A circular sealing strip (16) is provided on the inner wall of the circular rubber ring (15), and the circular sealing strip (16) is in close contact with the filter frame (61).

7. The water storage heat exchanger according to claim 6, characterized in that: The circular rubber ring (15) and the circular sealing strip (16) are an integrated structure, and a circular cavity is provided in the circular rubber ring (15).

8. The water storage heat exchanger according to claim 1, characterized in that: Two strip-shaped supports are provided on the bottom surface of the main body (1).

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