Pressure-resistant high-brazing heat exchanger

Abstract

The utility model discloses a pressure-resistant high brazing type heat exchanger which comprises a first fixing plate and a second fixing plate, a heat exchange plate is installed between the first fixing plate and the second fixing plate, and the front side of the heat exchange plate is provided with a heating medium inlet, a heating medium outlet, a refrigerant outlet and a refrigerant inlet. A first filter box is fixedly connected to the first fixing plate located between the heating medium inlet and the heating medium outlet, a second filter box is fixedly connected to the first fixing plate located between the refrigerant outlet and the refrigerant inlet, a heating medium input pipe is fixedly connected between the upper side of the first filter box and the heating medium inlet, and the lower side of the first filter box is in threaded connection with a collecting bottle. A refrigerant input pipe is fixedly connected between the lower side of the second filter box and the refrigerant inlet, a cover plate is hinged to the upper side of the second filter box, and coarse filter screens and fine filter screens are arranged in the first filter box and the second filter box. By means of the structure, the problems that tap water contains large particles or fiber substances, filtering is incomplete, and cleaning is inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a high-pressure brazing heat exchanger. Background Art

[0002] A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It is a device that transfers heat from a fluid with a higher temperature to a fluid with a lower temperature. In specific applications, it can be used as a heater, cooler, condenser, evaporator, reboiler, etc., and is widely used.

[0003] Thin rectangular channels are formed between various heat exchange plates of brazed plate heat exchangers, and heat is exchanged through the heat exchange plates. Heating water and tap water contain large particles or fiber substances. Impurities that are not completely filtered are easily accumulated on the surface of the heat exchange plates, causing blockage of the heat exchange channels. Impurities on the surface of the heat exchange plates are inconvenient to clean; therefore, a high-pressure brazed heat exchanger is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a high-pressure brazed heat exchanger, which solves the problem that tap water contains large particles or fibrous substances, and impurities that are not completely filtered are easily accumulated on the surface of the heat exchange plate, causing blockage of the heat exchange channel and inconvenience in cleaning.

[0005] The utility model also provides the above-mentioned high-pressure brazed heat exchanger, including a first fixed plate and a second fixed plate, a heat exchange plate is installed between the first fixed plate and the second fixed plate, a heat exchange plate is provided with a heat medium inlet, a heat medium outlet, a refrigerant outlet and a refrigerant inlet on the front side of the heat exchange plate, a first filter box is fixedly connected to the first fixed plate between the heat medium inlet and the heat medium outlet, a second filter box is fixedly connected to the first fixed plate between the refrigerant outlet and the refrigerant inlet, a heat medium input pipe is fixedly connected between the upper side of the first filter box and the heat medium inlet, and a collecting bottle is threadedly connected to the lower side, a refrigerant input pipe is fixedly connected between the lower side of the second filter box and the refrigerant inlet, and a cover plate is hinged on the upper side, and a coarse filter screen and a fine filter screen are provided in the first filter box and the second filter box.

[0006] Bolts are provided between the first fixing plate and the second fixing plate on both sides of the heat exchange plate, the bolts slidably connect the first fixing plate and the second fixing plate, a nut is threadedly connected to the bolt on one side of the second fixing plate, and a toggle rod is fixedly connected to the outer side of the nut.

[0007] A collecting box is provided between the first fixing plate and the second fixing plate at the lower side of the heat exchange plate. The collecting box is slidably connected to the first fixing plate, and a rear end thereof is clamped to the second fixing plate.

[0008] A handle is fixedly connected to the front side of the collection box.

[0009] The heat medium inlet and the heat medium outlet are located on the left side of the first fixed plate, and the refrigerant outlet and the refrigerant inlet are located on the right side of the first fixed plate.

[0010] The heat exchange plate is composed of 0.4 mm thin plate.

[0011] The utility model has the following beneficial effects:

[0012] 1. When injecting water, first filter the particles and impurities in the water through the first filter box and the second filter box. Under the action of the coarse filter and the fine filter, the blockage of the heat exchange plate is effectively reduced, and the stability of the device is improved.

[0013] 2. The first fixing plate and the second fixing plate are fixed by bolts and nuts. At the same time, under the action of the toggle rod on the outside of the nut, they can be directly fixed manually without tools, making the installation and detection of the device more convenient.

[0014] 3. With the help of the collection box, it is convenient to collect water dripping from the bottom of the heat exchange plate to prevent damage to the ground and avoid accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural diagram of a high-pressure brazing heat exchanger.

[0016] Figure 2 This is a structural diagram of a filter box of a high-pressure brazing heat exchanger of the utility model.

[0017] Figure 3 This is another structural diagram of a high-pressure brazing heat exchanger of the utility model.

[0018] Figure 4 This is a structural diagram of a collecting box of a high-pressure brazing heat exchanger of the utility model.

[0019] Legend:

[0020] 1. First fixing plate; 2. Second fixing plate; 3. Heat exchange plate; 4. First filter box; 41. Collecting bottle; 5. Second filter box; 51. Cover plate; 6. Collecting box; 61. Handle; 7. Heat medium inlet; 8. Heat medium outlet; 9. Refrigerant outlet; 10. Refrigerant inlet; 11. Heat medium input pipe; 12. Refrigerant input pipe; 13. Coarse filter; 14. Fine filter; 15. Bolt; 16. Nut; 161. Toggle lever. DETAILED DESCRIPTION

[0021] Reference Figures 1-4, in an embodiment of the utility model, a high-pressure-resistant brazed heat exchanger includes a first fixing plate 1 and a second fixing plate 2. A heat exchange plate 3 is installed between the first fixing plate 1 and the second fixing plate 2. The heat exchange plate 3 is composed of thin plates with a thickness of 0.4 mm, having a high heat transfer coefficient, being lightweight, and being able to withstand high temperatures (400 degrees Celsius) and high pressures (30 bar). Bolts 15 are provided between the first fixing plate 1 and the second fixing plate 2 on both sides of the heat exchange plate 3. The bolts 15 are slidably connected to the first fixing plate 1 and the second fixing plate 2. A nut 16 is threadedly connected to the bolt 15 on one side of the second fixing plate 2. A toggle lever 161 is fixedly connected to the outside of the nut 16. Under the action of the toggle lever 161, it can be directly manually fixed without tools, making the installation and detection of the device more convenient;

[0022] A collection box 6 is provided between the first fixing plate 1 and the second fixing plate 2 below the heat exchange plate 3. The collection box 6 is slidably connected to the first fixing plate 1 and is snap-connected to the second fixing plate 2 at the rear end. A handle 61 is fixedly connected to the front side of the collection box 6. Under the action of the collection box 6, it is convenient to collect the water dripping from the bottom of the heat exchange plate 3, preventing damage to the ground and avoiding accidents;

[0023] A heat medium inlet 7, a heat medium outlet 8, a refrigerant outlet 9, and a refrigerant inlet 10 are provided on the front side of the heat exchange plate 3. The heat medium inlet 7 and the heat medium outlet 8 are located at the left position of the first fixing plate 1, and the refrigerant outlet 9 and the refrigerant inlet 10 are located at the right position of the first fixing plate 1. A first filter box 4 is fixedly connected to the first fixing plate 1 between the heat medium inlet 7 and the heat medium outlet 8. A second filter box 5 is fixedly connected to the first fixing plate 1 between the refrigerant outlet 9 and the refrigerant inlet 10. A heat medium input pipe 11 is fixedly connected between the upper side of the first filter box 4 and the heat medium inlet 7, and a collection bottle 41 is threadedly connected to the lower side. It is convenient to collect the impurities filtered out in the first filter box 4 through the collection bottle 41. During cleaning, the collection bottle 41 can be directly removed. A refrigerant input pipe 12 is fixedly connected between the lower side of the second filter box 5 and the refrigerant inlet 10, and a cover plate 51 is hinged to the upper side. Coarse filter meshes 13 and fine filter meshes 14 are provided in both the first filter box 4 and the second filter box 5. The impurities filtered out in the second filter box 5 can be directly cleaned by opening the cover plate 51.

[0024] During installation, the heat exchange plate 3 is installed between the first fixing plate 1 and the second fixing plate 2, and then the heat exchange plate 3 is fixed by the cooperation of the bolts 15 and the nuts 16. Through the toggle lever 161 outside the nut 16, it can be directly manually fixed without tools, making the installation and detection of the device more convenient; when injecting water into the heat medium inlet 7 and the refrigerant inlet 10, first filter the particles and impurities in the water through the first filter box 4 and the second filter box 5. Under the action of the coarse filter meshes 13 and the fine filter meshes 14, the situation of blockage of the heat exchange plate 3 is effectively reduced, improving the stability of the device.

Claims

1. A high-pressure-resistant brazed heat exchanger, characterized in that, The invention comprises a first fixing plate (1) and a second fixing plate (2), wherein a heat exchange plate (3) is installed between the first fixing plate (1) and the second fixing plate (2), wherein a heat medium inlet (7), a heat medium outlet (8), a refrigerant outlet (9) and a refrigerant inlet (10) are arranged on the front side of the heat exchange plate (3), wherein a first filter box (4) is fixedly connected to the first fixing plate (1) between the heat medium inlet (7) and the heat medium outlet (8), wherein a second filter box (5) is fixedly connected to the first fixing plate (1) between the refrigerant outlet (9) and the refrigerant inlet (10), wherein a heat medium input pipe (11) is fixedly connected between the upper side of the first filter box (4) and the heat medium inlet (7), and a collecting bottle (41) is threadedly connected to the lower side, wherein a refrigerant input pipe (12) is fixedly connected between the lower side of the second filter box (5) and the refrigerant inlet (10), and a cover plate (51) is hingedly connected to the upper side, and a coarse filter screen (13) and a fine filter screen (14) are arranged in both the first filter box (4) and the second filter box (5).

2. The high-pressure-resistant brazed heat exchanger according to claim 1, characterized in that, Bolts (15) are provided between the first fixing plate (1) and the second fixing plate (2) located on both sides of the heat exchange plate (3), the bolts (15) slidably connecting the first fixing plate (1) and the second fixing plate (2), a nut (16) is threadedly connected to the bolt (15) located on one side of the second fixing plate (2), and a toggle rod (161) is fixedly connected to the outer side of the nut (16).

3. The high-pressure-resistant brazed heat exchanger according to claim 2, characterized in that, A collection box (6) is provided between the first fixing plate (1) and the second fixing plate (2) located at the lower side of the heat exchange plate (3); the collection box (6) is slidably connected to the first fixing plate (1) and has a rear end that is clamped to the second fixing plate (2).

4. The high-pressure-resistant brazed heat exchanger according to claim 3, characterized in that, A handle (61) is fixedly connected to the front side of the collection box (6).

5. The high-pressure-resistant brazed heat exchanger according to claim 4, characterized in that, The heat medium inlet (7) and the heat medium outlet (8) are located on the left side of the first fixed plate (1), and the refrigerant outlet (9) and the refrigerant inlet (10) are located on the right side of the first fixed plate (1).

6. The high-pressure-resistant brazed heat exchanger according to claim 5, wherein, The heat exchange plate (3) is composed of a 0.4 mm thin plate.

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