Anti-blocking plate heat exchanger

Abstract

The anti-blocking plate heat exchanger comprises a shell, metal plates, a back plate, a filter cartridge and a connector, a left clamping plate and a right clamping plate are arranged on the two sides of the shell, protective nets are arranged on the side faces of the left clamping plate and the right clamping plate, a first fixing block is arranged at the right end of the top of the left clamping plate and provided with a first threaded rod, and a second fixing block is arranged at the right end of the top of the second clamping plate and provided with a second threaded rod. A second fixing block is arranged at the left end of the top of the right clamping plate, a back plate is arranged in the shell, the right side of the back plate is connected with a second threaded rod, the filter cartridge is provided with an opening and closing plate, and a filter plate is arranged in the filter cartridge. According to the anti-blocking plate heat exchanger, the filter cartridge and the sealing plate are arranged, the sealing plate is movably connected with the filter cartridge, the filter cartridge is rotated by 180 degrees, the filter plate on the lower half portion is communicated with the opening, then the filter plate needing to be replaced is replaced, the filter plate can be conveniently replaced in the non-stop state, and therefore the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, in particular to an anti-clogging plate heat exchanger. Background Art

[0002] Plate heat exchanger is a kind of high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-gas heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application and long service life. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of tubular heat exchanger, and the footprint is one-third of that of tubular heat exchanger, and the heat recovery rate can be as high as more than 90%.

[0003] In order to ensure the close connection between the metal plates, the existing plate heat exchangers are reinforced with multiple cross bars around the metal plates. When the metal plates are disassembled for maintenance, all the cross bars need to be removed and the heat exchanger needs to be completely disassembled before the metal plates can be removed. The process is cumbersome and the heat exchanger needs to be reassembled after the maintenance is completed. In order to avoid the blockage of the heat exchanger, the existing heat exchangers usually install a filter device at the water inlet pipe position. After the filter device has been working for a long time, its filtering efficiency will be reduced. Therefore, in order to ensure its filtering efficiency, the filter screen inside the filter device needs to be replaced. However, during the process of replacing the filter screen, the water supply needs to be cut off and the heat exchanger needs to be stopped to avoid leakage, thereby reducing the working efficiency of the heat exchanger.

[0004] Therefore, we propose an anti-clogging plate heat exchanger to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-clogging plate heat exchanger to solve the problems raised by the above background technology that the maintenance process of metal plates in the current market is cumbersome and the heat exchanger needs to be stopped when replacing the filter, thereby reducing the working efficiency of the heat exchanger.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-clogging plate heat exchanger, comprising an outer shell, a metal plate, a back plate, a filter cartridge and an interface, a left clamping plate and a right clamping plate are arranged on both sides of the outer shell, and protective nets are arranged on the sides of the left clamping plate and the right clamping plate, a plurality of metal plates are arranged inside the outer shell, a first fixing block is arranged at the right end of the top of the left clamping plate, and the first fixing block is arranged at the first threaded rod, a second fixing block is arranged at the left end of the top of the right clamping plate, a back plate is arranged inside the outer shell, and a second threaded rod is connected to the right side of the back plate, a cold water inlet, a cold water outlet, a hot water inlet and a hot water outlet are arranged on the left side of the outer shell, a slide groove is arranged at the bottom of the inner shell, and a limiting rod is arranged inside the slide groove, the filter cartridge is arranged with an opening and closing plate, and a filter plate is arranged inside the filter cartridge, and sealing plates are arranged on both sides of the filter cartridge.

[0007] Preferably, a bracket is fixed on the left side of the shell, and the second threaded rod passes through the bracket, the second threaded rod is threadedly connected to the bracket, and the left end of the second threaded rod is connected to the back plate by a bearing, and the limiting rod passes through the bottom of the back plate.

[0008] Preferably, a first threaded rod is provided in the first fixing block, and the first threaded rod is movably connected to the first fixing block, the second fixing block is provided with a U-shaped groove, and the first fixing block is fixedly connected to the second fixing block by connection between the first threaded rod and a nut, and the left clamping plate and the right clamping plate are movably connected to the outer shell.

[0009] Preferably, a partition is fixed inside the upper half of the filter cartridge, and the filter plate is clamped between the partition and the opening and closing plate, the opening and closing plate and the filter cartridge are movably connected, and the opening and closing plate forms a fixed structure with the filter cartridge through bolts, and the lower half of the filter cartridge is provided with a partition, an opening and closing plate and a filter plate which are centrally symmetrical with the upper half of the filter cartridge.

[0010] Preferably, the centers of the two sealing plates are connected by a connecting rod, and the connecting rod passes through the filter cartridge, the sealing plate and the filter cartridge are movably connected, and a sealing ring is provided at the connection position of the filter cartridge with the sealing plate, an empty groove is provided inside the connecting rod, and a spring and a ball are provided inside the empty groove, the ball is located above the spring, and the filter cartridge has two limit grooves at the position of the ball, and the two limit grooves are symmetrically distributed.

[0011] Preferably, an opening is provided in the upper half of the sealing plate, and the opening on the left side is connected to the interface, and the opening on the right side is connected to the cold water inlet, the cold water inlet and the cold water outlet are distributed up and down in the right half of the side of the shell, and the hot water inlet and the hot water outlet are distributed up and down in the left half of the side of the shell, and the back plate is provided with the same cold water inlet, cold water outlet, hot water inlet and hot water outlet at the same position as the left side of the shell, and the cold water inlet and the cold water outlet are connected by a first connecting pipe, and the hot water inlet and the hot water outlet are connected by a second connecting pipe.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the anti-clogging plate heat exchanger,

[0013] (1) A left clamping plate and a right clamping plate are provided, and a protective net is provided on the left clamping plate and the right clamping plate. By rotating the nut, the fixed connection between the first fixing block and the second fixing block is loosened, and then the left clamping plate and the right clamping plate are rotated to both sides, so that the metal plate is exposed, and the metal plate is effectively protected and convenient for maintenance;

[0014] (2) A filter cartridge and a sealing plate are provided, and the sealing plate and the filter cartridge are movably connected. By rotating the filter cartridge 180 degrees, the filter plate in the lower part is connected to the opening, and then the filter plate that needs to be replaced is replaced, which is convenient for replacing the filter plate without stopping the machine, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 4 It is a right side structural schematic diagram of the utility model;

[0019] Figure 5 This is a left-side structural schematic diagram of the utility model;

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the filter cartridge of the utility model;

[0021] Figure 7 For this utility model Figure 1 Schematic diagram of the structure at A in the middle;

[0022] Figure 8 For this utility model Figure 7 Schematic diagram of the structure at point B in the middle.

[0023] In the figure: 1. shell; 101. slide groove; 102. limit rod; 103. bracket; 2. left clamping plate; 201. first fixed block; 202. first threaded rod; 203. nut; 3. right clamping plate; 301. second fixed block; 4. protective net; 5. second threaded rod; 6. metal plate; 7. back plate; 701. first connecting pipe; 702. second connecting pipe; 8. filter cartridge; 801. partition; 802. limit groove; 9. sealing plate; 901. connecting rod; 902. opening; 903. empty groove; 904. spring; 905. ball; 10. interface; 11. opening and closing plate; 12. filter plate; 13. bolt; 14. cold water inlet; 15. cold water outlet; 16. hot water inlet; 17. hot water outlet. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-8 The utility model provides a technical solution: an anti-clogging plate heat exchanger, comprising a shell 1, a metal plate 6, a back plate 7, a filter cartridge 8 and an interface 10, a left clamping plate 2 and a right clamping plate 3 are arranged on both sides of the shell 1, and a protective net 4 is arranged on the sides of the left clamping plate 2 and the right clamping plate 3, a plurality of metal plates 6 are arranged inside the shell 1, a first fixing block 201 is arranged at the right end of the top of the left clamping plate 2, and the first fixing block 201 is arranged with a first threaded rod 202, a second fixing block 301 is arranged at the left end of the top of the right clamping plate 3, a back plate 7 is arranged inside the shell 1, and a second threaded rod 5 is connected to the right side of the back plate 7, a cold water inlet 14, a cold water outlet 15, a hot water inlet 16 and a hot water outlet 17 are arranged on the left side of the shell 1, a slide groove 101 is opened at the bottom of the shell 1, and a limiting rod 102 is arranged inside the slide groove 101, the filter cartridge 8 is provided with an opening and closing plate 11, and a filter plate 12 is arranged inside the filter cartridge 8, and sealing plates 9 are arranged on both sides of the filter cartridge 8.

[0026] A bracket 103 is fixed on the left side of the outer shell 1, and the second threaded rod 5 passes through the bracket 103. The second threaded rod 5 is threadedly connected to the bracket 103, and the left end of the second threaded rod 5 is connected to the back plate 7 by a bearing. The limiting rod 102 passes through the bottom of the back plate 7. The back plate 7 can be moved in the outer shell 1 by rotating the second threaded rod 5, which is convenient for clamping the metal plate 6.

[0027] A first threaded rod 202 is provided in the first fixing block 201, and the first threaded rod 202 is movably connected to the first fixing block 201, a U-shaped groove is provided in the second fixing block 301, and the first fixing block 201 is fixedly connected to the second fixing block 301 through the connection between the first threaded rod 202 and the nut 203, the left clamping plate 2 and the right clamping plate 3 are movably connected to the outer shell 1, and the first threaded rod 202 can be controlled to be fixed in the second fixing block 301 by rotating the nut 203, so as to facilitate the quick opening of the left clamping plate 2 and the right clamping plate 3.

[0028] A partition 801 is fixed inside the upper half of the filter cartridge 8, and the filter plate 12 is clamped between the partition 801 and the opening and closing plate 11. The opening and closing plate 11 is movably connected to the filter cartridge 8, and the opening and closing plate 11 forms a fixed structure with the filter cartridge 8 through bolts 13. The lower half of the filter cartridge 8 is provided with a partition 801, an opening and closing plate 11 and a filter plate 12 which are centrally symmetrical with the upper half of the filter cartridge 8. The filter plate 12 can be quickly replaced by opening the opening and closing plate 11, which facilitates the replacement of the filter plate 12.

[0029] The centers of the two sealing plates 9 are connected by a connecting rod 901, and the connecting rod 901 passes through the filter cartridge 8. The sealing plate 9 and the filter cartridge 8 are movably connected, and a sealing ring is provided at the connection position of the filter cartridge 8 with the sealing plate 9. An empty groove 903 is provided inside the connecting rod 901, and a spring 904 and a ball 905 are provided inside the empty groove 903. The ball 905 is located above the spring 904. The filter cartridge 8 has two limit grooves 802 at the position of the ball 905, and the two limit grooves 802 are symmetrically distributed. The filter plate 12 can be replaced by rotating the filter cartridge 8 without stopping the machine, thereby improving the heat exchange efficiency.

[0030] An opening 902 is provided on the upper half of the sealing plate 9, and the left opening 902 is connected to the interface 10, and the right opening 902 is connected to the cold water inlet 14. The cold water inlet 14 and the cold water outlet 15 are distributed up and down on the right half of the side of the shell 1, and the hot water inlet 16 and the hot water outlet 17 are distributed up and down on the left half of the side of the shell 1. The back plate 7 is provided with the same cold water inlet 14, cold water outlet 15, hot water inlet 16 and hot water outlet 17 at the same position as the left side of the shell 1, and the cold water inlet 14 and the cold water outlet 15 are connected by a first connecting pipe 701, and the hot water inlet 16 and the hot water outlet 17 are connected by a second connecting pipe 702, so that cold water can enter from the cold water inlet 14 and be discharged from the cold water outlet 15, and hot water can enter from the hot water inlet 16 and be discharged from the hot water outlet 17, so that the heat exchanger can perform better heat exchange.

[0031] Working principle: When using the anti-clogging plate heat exchanger, cold water first enters the filter cartridge 8 from the interface 10, is filtered through the filter plate 12 inside the filter cartridge 8, and then enters the heat exchanger from the cold water inlet 14. At the same time, hot water enters the heat exchanger from the hot water inlet 16. Cold water and hot water pass through the metal plate 6 at the same time, and are discharged from the cold water outlet 15 and the hot water outlet 17 through the first connecting pipe 701 and the second connecting pipe 702. In the process, heat exchange between cold water and hot water is completed, thus completing the use of the anti-clogging plate heat exchanger.

[0032] When using the anti-clogging plate heat exchanger to replace the filter plate, first rotate the filter cartridge 8 180° on the sealing plate 9 so that the filter plate 12 in the lower part is connected with the opening 902 of the sealing plate 9. During the process, the ball 905 in the hollow groove 903 compresses the spring 904, and the ball 905 enters the limiting groove 802 after the filter cartridge 8 rotates 180°, so that the filter cartridge 8 is fixed on the connecting rod 901 in this state, and then the bolt 13 at the bottom is rotated to open the opening and closing plate 11 at the bottom, and then the filter plate 12 inside it is taken out and replaced with a new filter plate 12, and finally the opening and closing plate 11 is closed, and the bolt 13 is tightened, thus completing the replacement of the filter plate of the anti-clogging plate heat exchanger.

[0033] When the metal plate needs to be maintained when using the anti-clogging plate heat exchanger, first rotate the nut 203, then rotate the first threaded rod 202 to release the fixing structure between the first fixing block 201 and the second fixing block 301, then open the left clamping plate 2 and the right clamping plate 3 to both sides, and then rotate the second threaded rod 5 to make the back plate 7 move backward along the limit rod 102 in the slide groove 101, and then remove the metal plate 6 and maintain it. After the maintenance is completed, put the metal plate 6 back into the shell 1, and then rotate the second threaded rod 5 in the opposite direction to clamp the metal plate 6, and then close the left clamping plate 2 and the right clamping plate 3, and then rotate the first threaded rod 202 to the inside of the second fixing block 301, and finally rotate the nut 203 to clamp the left clamping plate 2 and the right clamping plate 3, thus completing the maintenance of the metal plate of the anti-clogging plate heat exchanger, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-clogging plate heat exchanger, comprising a housing (1), a metal plate (6), a back plate (7), a filter cartridge (8) and an interface (10), characterized in that: A left clamping plate (2) and a right clamping plate (3) are arranged on both sides of the shell (1), and protective nets (4) are arranged on the sides of the left clamping plate (2) and the right clamping plate (3). A plurality of metal plates (6) are arranged inside the shell (1). A first fixing block (201) is arranged at the top right end of the left clamping plate (2), and the first fixing block (201) is provided with a first threaded rod (202). A second fixing block (301) is arranged at the top left end of the right clamping plate (3). A back plate (7) is arranged inside the shell (1). A second threaded rod (5) is connected to the right side of the back plate (7); a cold water inlet (14), a cold water outlet (15), a hot water inlet (16) and a hot water outlet (17) are arranged on the left side of the shell (1); a slide groove (101) is provided at the bottom of the shell (1), and a limit rod (102) is arranged inside the slide groove (101); an opening and closing plate (11) is provided on the filter cartridge (8), and a filter plate (12) is arranged inside the filter cartridge (8); and sealing plates (9) are arranged on both sides of the filter cartridge (8).

2. The anti-clogging plate heat exchanger according to claim 1, characterized in that: A bracket (103) is fixed on the left side of the housing (1), and the second threaded rod (5) passes through the bracket (103), the second threaded rod (5) and the bracket (103) are threadedly connected, and the left end of the second threaded rod (5) is connected to the back plate (7) by a bearing, and the limiting rod (102) passes through the bottom of the back plate (7).

3. The anti-clogging plate heat exchanger according to claim 1, characterized in that: The first fixing block (201) is provided with a first threaded rod (202), and the first threaded rod (202) is movably connected to the first fixing block (201); the second fixing block (301) is provided with a U-shaped groove, and the first fixing block (201) is fixedly connected to the second fixing block (301) by connecting the first threaded rod (202) and a nut (203); the left clamping plate (2) and the right clamping plate (3) are movably connected to the housing (1).

4. The anti-clogging plate heat exchanger according to claim 1, characterized in that: A partition (801) is fixed inside the upper part of the filter cartridge (8), and the filter plate (12) is clamped between the partition (801) and the opening and closing plate (11); the opening and closing plate (11) and the filter cartridge (8) are movably connected, and the opening and closing plate (11) and the filter cartridge (8) form a fixed structure through bolts (13); and the lower part of the filter cartridge (8) is provided with a partition (801), an opening and closing plate (11) and a filter plate (12) that are centrally symmetrical with the upper part of the filter cartridge (8).

5. The anti-clogging plate heat exchanger according to claim 1, characterized in that: The centers of the two sealing plates (9) are connected by a connecting rod (901), and the connecting rod (901) passes through the filter cartridge (8). The sealing plate (9) and the filter cartridge (8) are movably connected, and a sealing ring is provided at the connection position between the filter cartridge (8) and the sealing plate (9). An empty groove (903) is provided inside the connecting rod (901), and a spring (904) and a round ball (905) are provided inside the empty groove (903). The round ball (905) is located above the spring (904). The filter cartridge (8) has two limiting grooves (802) at the position of the round ball (905), and the two limiting grooves (802) are symmetrically distributed.

6. The anti-clogging plate heat exchanger according to claim 1, characterized in that: The upper half of the sealing plate (9) is provided with an opening (902), and the left opening (902) is connected to the interface (10), and the right opening (902) is connected to the cold water inlet (14), the cold water inlet (14) and the cold water outlet (15) are vertically distributed on the right half of the side of the shell (1), and the hot water inlet (16) and the hot water outlet (17) are vertically distributed on the left half of the side of the shell (1), and the back plate (7) is provided with the same cold water inlet (14), cold water outlet (15), hot water inlet (16) and hot water outlet (17) at the same position as the left side of the shell (1), and the cold water inlet (14) and the cold water outlet (15) are connected via a first connecting pipe (701), and the hot water inlet (16) and the hot water outlet (17) are connected via a second connecting pipe (702).

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