Multi-mode heat exchanger

Abstract

The utility model provides a multi-mode heat exchanger, and belongs to the technical field of heat exchangers. A multi-mode heat exchanger comprises an exchange box, an inner spiral pipe and an outer spiral pipe are used in the exchange box, the outer spiral pipe is arranged on the peripheral side of the inner spiral pipe in a sleeving mode, a heat exchange inlet is connected to the position, located in the center, of the outer spiral pipe, a switching assembly is fixed to the heat exchange inlet and comprises a filtering box, and the filtering box is provided with a filtering opening. A communicating pipe is fixed in the filter box, a pipeline connecting port is arranged in the communicating pipe in a sliding mode, and the pipeline connecting port penetrates through the filter box to the outside, heat can be exchanged by switching two modes of hot water introduction and flue gas introduction through the pipeline connecting port, and meanwhile, the two modes do not influence each other in the filter box; the selectivity of the heat exchanger is effectively improved, and when hot water is introduced to exchange heat, dirt left by smoke in the outer spiral pipe can be cleaned through the hot water.

Description

Technical Field

[0001] The utility model belongs to the field of heat exchangers, and in particular relates to a multi-mode heat exchanger. Background Art

[0002] A heat exchanger is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. It is an industrial application of convective heat transfer and heat conduction. Household heat exchangers solve the problem of collective heating for households and hot water in winter. Its working principle is the same as that of collective heating heat exchangers.

[0003] Nowadays, most heat exchangers use flue gas alone to exchange heat, or use hot water alone to exchange heat. Moreover, when performing flue gas exchange, flue gas is mostly introduced into a box, and the substances in the flue gas can easily corrode other parts in the box. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a multi-mode heat exchanger.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a multi-mode heat exchanger, including an exchange box, characterized in that: an inner spiral tube and an outer spiral tube are used in the exchange box, wherein the outer spiral tube is sleeved on the outer peripheral side of the inner spiral tube, the outer spiral tube is connected to a heat exchange inlet at the center, and a switching component is fixed on the heat exchange inlet;

[0006] The switching assembly includes a filter box, a connecting pipe is fixed in the filter box, a pipeline connection port is slidably provided in the connecting pipe, the pipeline connection port penetrates the filter box to the outside, the external part of the pipeline connection port is threadedly connected with a threaded adjuster, and the threaded adjuster is rotatably connected to the filter box.

[0007] Optionally, a slideway is provided in the connecting pipe, part of the slideway is connected to the filter box, an outlet hole is provided on the outer peripheral side of the pipe connecting port, a sealing block is installed at the bottom of the pipe connecting port, and the sealing block slides in the slideway.

[0008] Optionally, a cold water outlet is fixed at one end of the inner spiral tube, and the cold water outlet passes through the side wall of the exchange box to the outside, and a cold water inlet is fixed at the other end of the inner spiral tube, and the cold water inlet and the heat exchange inlet are on the same side.

[0009] Optionally, a heat exchange inlet is fixed at one end of the outer spiral tube, and a heat exchange outlet is fixed at the other end, and the heat exchange outlet penetrates the side wall of the exchange box and extends to the outside.

[0010] Optionally, filter cotton is provided inside the filter box, and the filter cotton wraps the connecting pipe and the pipeline connecting port.

[0011] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. Due to the setting of the switching component, the two modes of hot water and flue gas can be switched through the pipe connection port to exchange heat. At the same time, the two modes do not affect each other in the filter box, which effectively increases the selectivity of the heat exchanger. Moreover, when hot water is introduced to exchange heat, hot water can also be used to clean the dirt left by the flue gas in the outer spiral tube.

[0013] 2. Moreover, by setting the outer spiral tube surrounding the inner spiral tube, the incoming flue gas only flows in the outer spiral tube and then flows out through the heat exchange outlet for collection, effectively preventing the flue gas from corroding other parts in the exchange box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model.

[0015] Figure 2 It is the front view of the utility model.

[0016] Figure 3 For this utility model Figure 2 Cross-sectional view along the AA direction.

[0017] Figure 4 For this utility model Figure 2 Cross-sectional view along the BB direction.

[0018] Figure 5 For this utility model Figure 3 Enlarged view of point C in the middle.

[0019] 10. Exchange box; 11. Cold water inlet; 12. Cold water outlet; 13. Heat exchange outlet; 14. Heat exchange inlet; 15. Filter box; 16. Pipe connection port; 17. Threaded adjuster; 18. Inner spiral tube; 19. Outer spiral tube; 20. Connecting tube; 21. Sealing block; 22. Exit hole; 23. Slideway. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0021] As shown in Figures 1-5, a multi-mode heat exchanger includes an exchange box 10, characterized in that: an inner spiral tube 18 and an outer spiral tube 19 are used in the exchange box 10, wherein the outer spiral tube 19 is sleeved on the outer peripheral side of the inner spiral tube 18, and the outer spiral tube 19 is located at the center and connected to a heat exchange inlet 14, one end of the outer spiral tube 19 is fixed with the heat exchange inlet 14, and the other end is fixed with a heat exchange outlet 13, the heat exchange outlet 13 penetrates the side wall of the exchange box 10 and extends to the outside, a switching component is fixed on the heat exchange inlet 14, one end of the inner spiral tube 18 is fixed with a cold water outlet 12, the cold water outlet 12 penetrates the side wall of the exchange box 10 to the outside, and the other end of the inner spiral tube 18 is fixed with a cold water inlet 11, and the cold water inlet 11 and the heat exchange inlet 14 are on the same side,

[0022] The switching assembly includes a filter box 15, a connecting pipe 20 is fixed in the filter box 15, a pipe connecting port 16 is slidably provided in the connecting pipe 20, the pipe connecting port 16 penetrates the filter box 15 to the outside, a filter cotton is provided inside the filter box 15, the filter cotton wraps the connecting pipe 20 and the pipe connecting port 16, a threaded adjuster 17 is threadedly connected to the outer part of the pipe connecting port 16, the threaded adjuster 17 is rotatably connected to the filter box 15, a slideway 23 is provided in the connecting pipe 20, part of the slideway 23 is connected to the filter box 15, an outlet hole 22 is provided on the outer peripheral side of the pipe connecting port 16, a sealing block 21 is installed at the bottom of the pipe connecting port 16, and the sealing block 21 slides in the slideway 23.

[0023] When in use, connect the cold water pipes that need to exchange heat to the cold water inlet 11 and the cold water outlet 12, install the waste collection pipe on the heat exchange outlet 13, and then when it is necessary to exchange heat through hot smoke, rotate the threaded adjuster 17 to move the pipe connection port 16 away from the exchange box 10 until the pipe connection port 16 completely abuts against the inner wall of the connecting pipe 20. At this time, the smoke flows into the filter box 15 through the outlet hole 22 in the pipe connection port 16, and then passes through the filter cotton in the filter box 15, and then flows into the connecting pipe 20 through the slide 23, and then flows into the outer spiral tube 19 through the heat exchange inlet 14, and exchanges heat with the entire inner spiral tube 18. The smoke only flows in the outer spiral tube 19 and then flows out and is collected through the heat exchange outlet 13, which effectively prevents the smoke from corroding other components in the exchange box 10.

[0024] When it is necessary to exchange heat through hot water, it is necessary to rotate the threaded adjuster 17 in the opposite direction to move the pipe connection port 16 towards the exchange box 10, until the pipe connection port 16 drives the sealing block 21 to be completely sealed to the slideway 23. At this time, the outlet hole 22 is connected with the inside of the connecting pipe 20, and the hot water flows into the connecting pipe 20 from the outlet hole 22 after passing through, and then flows into the outer spiral tube 19 through the heat exchange inlet 14 to exchange heat, effectively preventing hot water from entering the filter box 15 and making the filter cotton lose its function. At the same time, hot water can also be used to clean the dirt left by the flue gas in the outer spiral tube 19.

[0025] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A multi-mode heat exchanger, comprising an exchange box (10), characterized in that: The exchange box (10) uses an inner spiral tube (18) and an outer spiral tube (19), wherein the outer spiral tube (19) is sleeved on the outer peripheral side of the inner spiral tube (18), and the outer spiral tube (19) is connected to a heat exchange inlet (14) at the center, and a switching component is fixed on the heat exchange inlet (14); The switching assembly comprises a filter box (15), a connecting pipe (20) is fixed in the filter box (15), a pipeline connection port (16) is slidably provided in the connecting pipe (20), the pipeline connection port (16) penetrates the filter box (15) to the outside, the outside part of the pipeline connection port (16) is threadedly connected to a threaded adjuster (17), and the threaded adjuster (17) is rotatably connected to the filter box (15).

2. A multi-mode heat exchanger according to claim 1, characterized in that: A slideway (23) is provided in the connecting pipe (20), and a portion of the slideway (23) is connected to the filter box (15). An outlet hole (22) is provided on the outer peripheral side of the pipe connecting port (16). A sealing block (21) is installed at the bottom of the pipe connecting port (16), and the sealing block (21) slides in the slideway (23).

3. A multi-mode heat exchanger according to claim 1, characterized in that: A cold water outlet (12) is fixed to one end of the inner spiral tube (18), and the cold water outlet (12) penetrates the side wall of the exchange box (10) to the outside. A cold water inlet (11) is fixed to the other end of the inner spiral tube (18), and the cold water inlet (11) and the heat exchange inlet (14) are on the same side.

4. A multi-mode heat exchanger according to claim 1, characterized in that: A heat exchange inlet (14) is fixed at one end of the outer spiral tube (19), and a heat exchange outlet (13) is fixed at the other end. The heat exchange outlet (13) penetrates the side wall of the exchange box (10) and extends to the outside.

5. The multi-mode heat exchanger according to claim 1, characterized in that: The filter box (15) is provided with filter cotton inside, and the filter cotton wraps the connecting pipe (20) and the pipeline connecting port (16).

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