A heat exchange device

Abstract

The present invention discloses a heat exchange device, which includes a main shell, a wastewater inlet is provided at the upper part of the main shell, a bottom cover is fixed below the main shell, a wastewater outlet is provided at the lower part of the main shell, a hot water outlet and a cold water inlet are also provided at the main shell, a filter device connected to the wastewater inlet is also provided at the upper part of the main shell, a flow guide cover is provided below the filter device, a bellows is also provided in the main shell, the bellows outlet is connected to the hot water outlet, the bellows inlet is connected to the cold water inlet, and a self-pressure heat exchange component is also provided in the main shell. In the present invention, since the bellows is completely immersed in the self-pressure heat exchange component by wastewater, and wastewater and cold water form cold and hot convection inside and outside the bellows, heat exchange is more conducive, and the heat of wastewater after washing hair, face and vegetables can be fully utilized to preheat cold water before heating, which can significantly reduce the energy consumption of the rear water heater.

Description

Technical Field

[0001] The present invention relates to a heat exchange device.

Background Art

[0002] With the continuous improvement of our living standards, there are more and more hair salons, beauty parlors, home kitchens, and home bathrooms. Hair salons, beauty parlors, home kitchens, and home bathrooms generally are equipped with water heaters. Currently, the water heaters used in hair salons, beauty parlors, home kitchens, and home bathrooms on the market generally have single-tube inlet and outlet. Since a large amount of hot water is used in hair salons, beauty parlors, home kitchens, and home bathrooms, if relying solely on the water heater to heat water, whether it is a gas water heater or an electric water heater, it is too energy-consuming, and it also increases the cost of operating hair salons, beauty parlors, and the usage cost of home kitchens and home bathrooms.

[0003] How to pre-heat cold water by utilizing the heat of the water after washing hair, the water after washing face, and the water after washing vegetables before heating has become an urgent problem to be solved.

Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a heat exchange device that can fully utilize the heat of the water after washing hair, the water after washing face, and the water after washing vegetables to pre-heat cold water before heating, which can significantly reduce the energy consumption of the water heater, reduce costs, has a simple structure, is convenient for maintenance, is energy-saving and power-saving, and has a long service life.

[0005] The purpose of the present invention is achieved as follows:

[0006] A heat exchange device, characterized in that it includes a main housing. A waste water inlet is provided at the upper part of the main housing, a bottom cover is fixed under the main housing, a waste water outlet is provided at the lower part of the main housing, a hot water outlet and a cold water inlet are also provided on the main housing. A filtering device communicating with the waste water inlet is further provided in the upper part of the main housing. A flow guiding cover is provided below the filtering device. A corrugated pipe is also provided in the main housing. The outlet of the corrugated pipe communicates with the hot water outlet, and the inlet of the corrugated pipe communicates with the cold water inlet. A self-pressurized heat exchange component is further provided in the main housing. The corrugated pipe is arranged in the self-pressurized heat exchange component. Waste water enters the self-pressurized heat exchange component through the filtering device and the flow guiding cover for heat exchange.

[0007] A heat exchange device as described above, characterized in that the self-pressurized heat exchange component is provided with a cleaning and sewage discharging component.

[0008] A heat exchange device as described above, characterized in that the self-pressurized heat exchange component includes an inner bottom cover provided at the lower part of the main housing. An outer cylinder is provided on the inner bottom cover. An inner cylinder is provided inside the outer cylinder. The inner cylinder is lower than the outer cylinder. The inner bottom cover closes the bottom openings of the inner cylinder and the outer cylinder.

[0009] A heat exchange device as described above is characterized by an outer ring channel formed between the outer cylinder and the main shell, an inner ring channel formed between the outer cylinder and the inner cylinder, and a central channel arranged in the middle of the inner cylinder; the outer ring channel is communicated with the wastewater inlet, the lower part of the outer ring channel is communicated with the inner ring channel, the upper part of the inner ring channel is communicated with the central channel, and the central channel is communicated with the wastewater outlet.

[0010] A heat exchange device as described above is characterized in that the bellows is arranged in the outer ring channel.

[0011] A heat exchange device as described above is characterized in that the cleaning and sewage discharge device is arranged in the inner ring channel.

[0012] A heat exchange device as described above is characterized in that the cleaning and draining device comprises a drain outlet arranged between the inner ring channel and the inner bottom cover and a sealing plate closing the drain outlet, and a pull rod is connected to the sealing plate.

[0013] A heat exchange device as described above is characterized in that the hot water outlet is arranged at the upper part of the main shell, and the cold water inlet is arranged at the lower part of the main shell.

[0014] A heat exchange device as described above is characterized in that an anti-freezing and anti-icing drain port is also provided on the inner bottom cover.

[0015] A heat exchange device as described above is characterized in that an upper cover is provided at the upper opening of the main shell, the filtering device includes a filter cartridge, a filter screen is provided in the filter cartridge, a convex rib is provided on the inner wall of the upper cover, a groove matching the convex rib is provided on the outer wall of the air guide cover, an external thread is provided on the outer wall of the upper cover, and an internal thread matching the external thread is provided at the upper opening of the main shell.

[0016] In the present invention, since the corrugated pipe is completely immersed in the self-pressurized heat exchange component by wastewater, and wastewater and cold water form cold and hot convection inside and outside the corrugated pipe, it is more conducive to heat exchange, and the heat of wastewater after washing hair, washing face and washing vegetables can be fully utilized to preheat the cold water before heating, which can significantly reduce the energy consumption of the rear water heater. The present invention also provides an antifreeze and anti-icing drain port at the bottom of the self-pressurized heat exchange component. When the wastewater stops flowing in, the wastewater accumulated in the self-pressurized heat exchange component is continuously drained through the antifreeze and anti-icing drain port until it is completely drained, thereby achieving the effect of preventing freezing in winter. The present invention also provides a cleaning and sewage discharge device at the bottom of the self-pressurized heat exchange component, which can effectively discharge the debris in the wastewater and facilitate sewage discharge during future cleaning, maintenance and maintenance. The present invention reduces the energy consumption of the water heater, has a simple structure, is easy to maintain, saves energy and electricity, and has a long service life.

Brief Description of the Drawings

[0017] Figure 1 is a stereogram of the present invention;

[0018] Figure 2 is a cross-sectional view of the present invention;

[0019] Figure 3 It is a structural exploded diagram of the present invention;

[0020] Figure 4 It is an exploded view of the local structure of the present invention;

[0021] Figure 5 It is one of the three-dimensional diagrams of the self-pressure heat exchange assembly of the present invention;

[0022] Figure 6 This is the second stereoscopic view of the self-pressure heat exchange assembly of the present invention;

[0023] Figure 7 This is the third stereogram of the self-pressure heat exchange assembly of the present invention;

[0024] Figure 8 It is a three-dimensional diagram of the self-pressure heat exchange component and the cleaning and sewage discharge component after assembly. [Specific implementation method]

[0025] A heat exchange device includes a main shell 1, a wastewater inlet 2 is provided at the upper part of the main shell 1, a bottom cover 3 is fixed under the main shell, a wastewater outlet 4 is provided at the lower part of the main shell 1, and the main shell 1 is also provided with a hot water outlet 5 and a cold water inlet 8. A filter device 6 communicating with the wastewater inlet 2 is also provided at the upper part of the main shell 1, and a flow guide cover 7 is provided below the filter device 6. A bellows 9 is also provided in the main shell 1, a bellows outlet 10 of the bellows 9 is communicated with the hot water outlet 5, and a bellows inlet 11 of the bellows 9 is communicated with the cold water inlet 8. A self-pressurized heat exchange component 12 is also provided in the main shell 1, and the bellows 9 is arranged in the self-pressurized heat exchange component 12. Wastewater enters the self-pressurized heat exchange component 12 from the wastewater inlet 2 through the filter device 6 and the flow guide cover 7 for heat exchange.

[0026] The hot water outlet 5 of the present invention is arranged at the upper part of the main housing 1, and the cold water inlet 8 is arranged at the lower part of the main housing 1. Waste water and cold water form cold and hot convection inside and outside the bellows, which is more conducive to heat exchange, and can fully utilize the heat of waste water after washing hair, washing face and washing vegetables to preheat the cold water before heating, which can significantly reduce the energy consumption of the rear water heater.

[0027] The self-pressurized heat exchange assembly 12 of the present invention is provided with a cleaning and draining assembly 13. The cleaning and draining assembly 13 comprises a drain port 20 disposed between the inner ring channel 18 and the inner bottom cover 14 and a sealing plate 21 closing the drain port 20, and a pull rod 22 is connected to the sealing plate 21.

[0028] The self - pressure heat - exchange assembly 12 includes an inner bottom cover 14 provided at the lower part inside the main housing 1. An outer cylinder 15 is provided on the inner bottom cover 14. An inner cylinder 16 is provided inside the outer cylinder 15. The inner cylinder 16 is lower than the outer cylinder 15. The inner bottom cover 14 closes the bottom openings of the inner cylinder 16 and the outer cylinder 15. An outer - ring channel 17 is formed between the outer cylinder 15 and the main housing 1, and an inner - ring channel 18 is formed between the outer cylinder 15 and the inner cylinder 16. A central channel 19 is provided in the middle of the inner cylinder 16. The inner bottom cover 14 seals the lower opening of the main housing 1. An edge 141 is further provided on the outer edge of the inner bottom cover 14. The edge 141 is used for bonding with the inner wall of the main housing 1. A notch 142 is provided on the edge 141. The notch 142 is used to avoid the corrugated pipe 9 during installation. The outer - ring channel 17 communicates with the waste - water inlet 2. The lower part of the outer - ring channel 17 communicates with the inner - ring channel 18. The upper part of the inner - ring channel 18 communicates with the central channel 19. The central channel 19 communicates with the waste - water outlet 4. After the waste water passes through the filtering device and the flow - guiding cover 7, the waste water flows onto the entire surface of the corrugated pipe 9 and flows into the inner - ring channel 18 from the outer - ring channel 17. As the inflowing waste water continuously increases, the water level in the inner - ring channel 18 of the self - pressure heat - exchange assembly continuously rises. Since the water level in the outer - ring channel 17 is slightly higher than the water level in the inner - ring channel 18, a water - pressure difference is formed. When the water level exceeds the top of the inner - ring channel 18, the waste water flows into the central channel 19 and is discharged from the waste - water outlet 4.

[0029] The corrugated pipe 9 of the present invention is arranged inside the outer - ring channel 17. The cleaning and sewage - draining assembly 13 is arranged at the bottom of the inner - ring channel 18.

[0030] An anti - freezing and anti - icing drain port 23 is further provided on the inner bottom cover 14 of the present invention. During the process of waste - water inflow and discharge, the anti - freezing and anti - icing drain port 23 also continuously drains water slowly. When the waste water stops flowing in, the waste water accumulated in the inner and outer sandwich water channels of the self - pressure heat - exchange assembly is continuously drained through this anti - freezing and anti - icing drain port 23 until it is completely drained, thus achieving the effect of preventing icing in winter.

[0031] The sewage - draining port 20 of the present invention is a pair of arc - shaped grooves. When the sealing plate 21 fits with the inner bottom cover 14, the pair of arc - shaped grooves can be sealed.

[0032] The anti - freezing and anti - icing drain port 23 of the present invention communicates with the sewage - draining port 20. The anti - freezing and anti - icing drain port 23 is a relatively small hole and is an always - open hole.

[0033] The upper opening of the main housing 1 of the present invention is provided with an upper cover 24, the filter device 6 includes a filter cartridge 25, a filter screen 26 is provided in the filter cartridge 25, the filter screen 26 can filter out debris, a convex rib 27 is provided on the inner wall of the upper cover 24, a slot 28 matching the convex rib 27 is provided on the outer wall of the air guide cover 7, an external thread 29 is provided on the outer wall of the upper cover 24, and an internal thread 30 matching the external thread 29 is provided on the upper opening of the main housing 1. The present invention can also be that the filter cartridge 25 and the air guide cover 7 are set as an integral structure, and a filter cartridge pull rod 251 is provided on the filter cartridge 25, and the filter cartridge 25 and the air guide cover 7 can be removed from the upper cover together by pulling the filter cartridge pull rod 251, so as to facilitate cleaning.

[0034] The working principle of the present invention is as follows: the wastewater after washing hair, washing face and washing vegetables generally still has some heat, the wastewater flows into the filter device 6 through the wastewater inlet 2, and flows onto the surface of the guide cover 7 after filtering out the impurities through the filter device 6, the guide cover 7 guides the wastewater to the outer edge of the guide cover 7 and then flows downward to the entire surface of the bellows 9 in the outer ring channel 17 of the self-pressure heat exchange component 12, and then flows from the outer ring channel 17 into the inner ring channel 18, as the inflow of wastewater continues to increase, the water level in the inner ring channel 18 continues to rise, because the water level of the outer ring channel 17 is higher than that of the inner ring channel 18, a water pressure difference is formed. When the water level exceeds the top of the inner ring channel 18, the wastewater flows into the central channel 19 and is discharged from the wastewater outlet 4, at which time the bellows 9 in the outer ring channel 17 of the self-pressure heat exchange component 12 has been completely soaked by the wastewater in the outer ring channel 17. At the same time, cold water enters from the cold water inlet 8, then enters the bellows 9 to exchange heat with the wastewater on the surface of the bellows, preheats the cold water, and then flows out from the hot water outlet 5. Since the bellows 9 is completely soaked in wastewater, and the wastewater and cold water form cold and hot convection inside and outside the bellows, it is more conducive to heat exchange, and the heat of wastewater after washing hair, washing face, and washing vegetables can be fully utilized to preheat the cold water before heating, which can significantly reduce the energy consumption of the rear water heater. In addition, the self-pressurized heat exchange component is provided with an antifreeze and anti-icing drain port 23. In the process of wastewater flowing into and discharging, the antifreeze and anti-icing drain port is also continuously and slowly draining. When the wastewater stops flowing in, the wastewater accumulated in the self-pressurized heat exchange component is continuously drained through this antifreeze and anti-icing drain port 23 until it is completely drained, thereby achieving the effect of preventing freezing in winter. In addition, a cleaning and draining assembly 13 is provided at the bottom of the self-pressurized heat exchange assembly. When the sealing plate 21 of the cleaning and draining assembly 13 is completely lowered, the sealing plate 21 can seal the drain outlet 20 to block water. When the sealing plate 21 is pulled out by pulling the pull rod, the drain outlet 20 is opened to effectively drain away the debris in the wastewater and facilitate the draining during future cleaning, maintenance and repair.

Claims

1. A heat exchange device, characterized in that It includes a main housing (1). A waste water inlet (2) is provided at the upper part of the main housing (1). A bottom cover (3) is fixed under the main housing. A waste water outlet (4) is provided at the lower part of the main housing (1). The main housing (1) is also provided with a hot water outlet (5) and a cold water inlet (8). A filtering device (6) communicating with the waste water inlet (2) is also provided at the upper part inside the main housing (1). A flow guiding cover (7) is provided below the filtering device (6). A corrugated pipe (9) is also provided inside the main housing (1). The corrugated pipe outlet (10) communicates with the hot water outlet (5), and the corrugated pipe inlet (11) communicates with the cold water inlet (8). A self-pressurized heat exchange component (12) is also provided inside the main housing (1). The corrugated pipe (9) is arranged inside the self-pressurized heat exchange component (12). Waste water enters the self-pressurized heat exchange component (12) from the waste water inlet (2) through the filtering device (6) and the flow guiding cover (7) for heat exchange. The self-pressurized heat exchange component (12) includes an inner bottom cover (14) provided at the lower part inside the main housing (1). An outer cylinder (15) is provided on the inner bottom cover (14). An inner cylinder (16) is provided inside the outer cylinder (15). The inner cylinder (16) is lower than the outer cylinder (15). The inner bottom cover (14) closes the bottom openings of the inner cylinder (16) and the outer cylinder (15). An outer ring channel (17) formed between the outer cylinder (15) and the main housing (1), an inner ring channel (18) formed between the outer cylinder (15) and the inner cylinder (16), and a central channel (19) provided in the middle of the inner cylinder (16). The outer ring channel (17) communicates with the waste water inlet (2). The lower part of the outer ring channel (17) communicates with the inner ring channel (18). The upper part of the inner ring channel (18) communicates with the central channel (19). The central channel (19) communicates with the waste water outlet (4).

2. The heat exchange device according to claim 1, characterized in that The self-pressurized heat exchange component (12) is provided with a cleaning and sewage discharging component (13).

3. A heat exchange device according to claim 1, characterized in that The corrugated pipe (9) is arranged inside the outer ring channel (17).

4. The heat exchange device according to claim 2, wherein The cleaning and sewage discharging component (13) is arranged inside the inner ring channel (18).

5. A heat exchange device according to claim 2, wherein The cleaning and sewage discharging component (13) includes a sewage outlet (20) arranged between the inner ring channel (18) and the inner bottom cover (14) and a sealing plate (21) closing the sewage outlet (20). A pull rod (22) is connected to the sealing plate (21).

6. A heat exchange device according to claim 1, characterized in that The hot water outlet (5) is provided at the upper part of the main housing (1), and the cold water inlet (8) is provided at the lower part of the housing (1).

7. A heat exchange device according to claim 1, characterized in that An anti-freezing and anti-icing drain port (23) is also provided on the inner bottom cover (14).

8. A heat exchange device according to claim 1, characterized in that An upper cover (24) is provided at the upper opening of the main housing (1). The filtering device (6) includes a filtering cylinder (25). A filter net (26) is provided inside the filtering cylinder (25). Convex ribs (27) are provided on the inner wall of the upper cover (24). A clamping groove (28) matching with the convex ribs (27) is provided on the outer wall of the flow guiding cover (7). External threads (29) are provided on the outer wall of the upper cover (24). Internal threads (30) matching with the external threads (29) are provided at the upper opening of the main housing (1).

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