Cooking range waste heat water heater

Abstract

The utility model discloses a stove waste heat water heater which comprises a stove body, a water storage tank, a smoke exhaust cylinder, an inner heat conduction pipe, an outer heat conduction pipe, a water inlet pipe and a water return pipe, the stove body is communicated with the bottom of the smoke exhaust cylinder through a smoke pipe, a smoke exhaust port is formed in the upper portion of the smoke exhaust cylinder, and an ash removal port is formed in the bottom of the smoke exhaust cylinder. The inner heat conduction pipe and the outer heat conduction pipe are fixedly installed in the smoke discharging barrel, the outer heat conduction pipe is arranged outside the inner heat conduction pipe in a sleeving mode, a heating cavity is formed between the outer heat conduction pipe and the inner heat conduction pipe, the water storage tank is installed above the smoke discharging barrel, and the top of the water inlet pipe is communicated with the bottom of the water storage tank. The bottom of the water inlet pipe is communicated with the bottom of the heating cavity, the top of the water return pipe is communicated with the upper portion of the water storage tank, the bottom of the water return pipe is communicated with the top of the heating cavity, a water adding pipe is arranged on the top of the water storage tank, and a water drainage pipe is arranged on the lower portion of the water inlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of cookers, in particular to a stove waste heat water heater. Background Art

[0002] Although the use of electricity and natural gas as energy for heating and cooking has become popular in urban and rural areas, some people still use stoves in some remote rural areas. According to research and analysis, the heat utilization rate of existing stoves is low, and more than 70% of the heat is lost from the chimney and is not used. At present, some stoves use additional power equipment to make the fuel burn more fully to achieve the purpose of heat utilization, but such devices will increase the purchase cost of the stove and cause waste of resources. Therefore, it is very necessary to study a water heater with excellent performance and low cost that can make full use of the waste heat of the stove. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a stove waste heat water heater to solve the technical problem of how to improve the utilization rate of the stove waste heat.

[0004] To solve the above technical problems, the technical solution of the utility model is: a stove waste heat water heater, comprising a stove body, a water storage tank, an exhaust chimney, an inner heat conducting pipe, an outer heat conducting pipe, a water inlet pipe and a return pipe, the stove body is connected with the bottom of the exhaust chimney through the smoke pipe, the smoke exhaust chimney is provided with a smoke exhaust port at the upper part and a ash cleaning port at the bottom, the inner heat conducting pipe and the outer heat conducting pipe are fixedly installed in the smoke exhaust chimney, the outer heat conducting pipe is sleeved on the outside of the inner heat conducting pipe, a heating chamber is formed between the outer heat conducting pipe and the inner heat conducting pipe, the water storage tank is installed above the smoke exhaust chimney, the top of the water inlet pipe is communicated with the bottom of the water storage tank, the bottom of the water inlet pipe is communicated with the bottom of the heating chamber, the top of the return pipe is communicated with the upper part of the water storage tank, the bottom of the return pipe is communicated with the top of the heating chamber, a water supply pipe is provided at the top of the water storage tank, and a drain pipe is provided at the lower part of the water inlet pipe.

[0005] Preferably, a plurality of heat conducting plates are fixedly provided between the outer heat conducting pipe and the inner wall of the smoke exhaust pipe, and the heat conducting plates are evenly distributed at equal angles around the central axis of the outer heat conducting pipe.

[0006] Preferably, a flow guide pipe with upper and lower openings is installed in the inner heat conduction pipe.

[0007] Preferably, a ash cleaning port is provided on the bottom side wall of the smoke exhaust pipe, and the ash cleaning port is provided with a sealing cover, and the left and right sides of the sealing cover are plugged into the outer side wall of the smoke exhaust pipe.

[0008] Preferably, a handle is fixedly provided on the outer side wall of the cover.

[0009] Preferably, a valve is installed at the bottom of the water inlet pipe, and a valve is provided on the drain pipe.

[0010] Preferably, the top of the smoke exhaust pipe is bent toward the rear side of the stove body, and the water return pipe passes through the top of the smoke exhaust pipe.

[0011] The technical effects achieved by adopting the above technical solution are:

[0012] The stove waste heat water heater of the present application can fully utilize the waste heat of fuel combustion while achieving daily heating and cooking, that is, utilizing the waste heat to heat the water in the water tank, and the heated water can be used for bathing or other daily water use, which has the effect of energy saving and environmental protection. The present application can fully and efficiently utilize resources, has low cost, high efficiency and energy saving, is easy to operate, and can improve people's quality of life to a certain extent.

[0013] Since a plurality of heat conducting plates are fixedly arranged between the outer heat conducting pipe and the inner wall of the smoke exhaust pipe, and the heat conducting plates are evenly distributed at equal angles around the central axis of the outer heat conducting pipe, the heat conducting plates can increase the heat exchange area with the smoke and improve the waste heat utilization rate.

[0014] Since the flow guide pipe is installed inside the inner heat conduction pipe, it is beneficial to heat conduction and avoid dust accumulation.

[0015] Since a cleaning port is provided on the bottom side wall of the smoke exhaust pipe, the cleaning port is provided with a sealing cover, and the left and right sides of the sealing cover are plugged into the outer side wall of the smoke exhaust pipe, the inner cavity of the smoke exhaust pipe can be cleaned conveniently through the cleaning port.

[0016] Since a handle is fixedly provided on the outer side wall of the cover, it is convenient to open the dust cleaning port.

[0017] Since a valve is installed at the bottom of the water inlet pipe and a valve is provided on the drain pipe, it is convenient for use and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is an overall diagram of an embodiment of the utility model;

[0020] Figure 2 This is the internal structure diagram of the smoke exhaust pipe of the utility model embodiment;

[0021] Figure 3 It is a transverse cross-sectional view of the smoke exhaust pipe of the embodiment of the utility model;

[0022] In the figure, 1. stove body; 2. water storage tank; 3. smoke exhaust pipe; 31. ash cleaning port; 4. inner heat conduction pipe; 5. outer heat conduction pipe; 6. water inlet pipe; 7. water return pipe; 8. smoke pipe; 9. heat conduction plate; 10. sealing cover; 11. water supply pipe; 12. drain pipe; 13. heat conduction pipe. DETAILED DESCRIPTION

[0023] As shown in Figures 1 to 3, a stove waste heat water heater includes a stove body 1, a water storage tank 2, a smoke exhaust pipe 3, an inner heat pipe 4, an outer heat pipe 5, a water inlet pipe 6 and a water return pipe 7. The stove body 1 is connected to the bottom of the smoke exhaust pipe 3 through a smoke pipe 8. The smoke exhaust pipe 3 is provided with a smoke exhaust port at the top and a dust cleaning port 31 at the bottom. The smoke exhaust pipe 3 is fixedly installed with an inner heat pipe 4 and an outer heat pipe 5. The outer heat pipe 5 is sleeved on the outside of the inner heat pipe 4. A heating chamber is formed between the outer heat pipe 5 and the inner heat pipe 4. A plurality of heat conducting plates 9 are fixedly arranged between the outer heat pipe 5 and the inner wall of the smoke exhaust pipe 3. The heat conducting plates 9 are evenly distributed at equal angles around the central axis of the outer heat conducting pipe 5. The heat conducting plates 9 can increase the heat exchange area with the flue gas and improve the utilization rate of waste heat. A flow pipe 13 with openings at both ends is installed in the inner heat conducting pipe 4, which is conducive to heat conduction and avoids dust accumulation.

[0024] The water tank 2 is installed above the smoke exhaust pipe 3, the top of the water inlet pipe 6 is connected to the bottom of the water tank 2, the bottom of the water inlet pipe 6 is connected to the bottom of the heating chamber, the top of the return pipe 7 is connected to the upper part of the water tank 2, the bottom of the return pipe 7 is connected to the top of the heating chamber, a water supply pipe 11 is provided on the top of the water tank 2, and a drain pipe 12 is provided at the bottom of the water inlet pipe 6. A valve is installed at the bottom of the water inlet pipe 6, and a valve is provided on the drain pipe 12 for easy use and maintenance.

[0025] The top of the smoke exhaust pipe 3 is bent toward the rear side of the stove body 1, and the return pipe 7 runs through the top of the smoke exhaust pipe 3. A ash cleaning port 31 is provided on the side wall at the bottom of the smoke exhaust pipe 3, and a cover 10 is provided on the ash cleaning port 31. The left and right sides of the cover 10 are plugged into the outer wall of the smoke exhaust pipe 3, so that the inner cavity of the smoke exhaust pipe 3 can be cleaned through the ash cleaning port 31. A handle is fixed on the outer wall of the cover 10 to facilitate opening the ash cleaning port 31.

[0026] The working principle of the stove waste heat water heater of this application is:

[0027] When cold water enters the bottom of the heating chamber from the water inlet pipe 6, the flue gas with a large amount of waste heat generated by the fuel in the combustion furnace heats the water at the bottom of the heating chamber to raise its temperature. The water at the bottom of the heating chamber absorbs heat, its temperature rises, its volume expands, its density decreases, and it flows upward to the upper part of the water tank. The cold water at the bottom of the water tank continues to sink, forming convection tumbling cycle heating until the overall water temperature in the water tank rises.

[0028] The stove waste heat water heater of the present application has the following technical effects:

[0029] The stove waste heat water heater of the present application can fully utilize the waste heat of fuel combustion while achieving daily heating and cooking, that is, utilizing the waste heat to heat the water in the water tank, and the heated water can be used for bathing or other daily water use, which has the effect of energy saving and environmental protection. The present application can fully and efficiently utilize resources, has low cost, high efficiency and energy saving, is easy to operate, and can improve people's quality of life to a certain extent.

[0030] It is obvious that the above description and record are only examples and are not intended to limit the disclosure, application or use of the present application. Although the embodiments have been described in the embodiments and described in the drawings, the present application is not limited to the specific examples of the teachings of the present application as the best mode currently considered by the drawings and described in the embodiments, and the scope of the present application will include any embodiment falling within the preceding description and the attached claims.

Claims

1. A stove waste heat water heater, characterized in that: It includes the stove body, water storage tank, smoke exhaust pipe, inner heat conduction pipe, outer heat conduction pipe, water inlet pipe and water return pipe. The stove body is connected with the bottom of the smoke exhaust pipe through a smoke pipe, the upper part of the smoke exhaust pipe is provided with a smoke exhaust port and the bottom is provided with a ash cleaning port, the inner heat conducting pipe and the outer heat conducting pipe are fixedly installed in the smoke exhaust pipe, the outer heat conducting pipe is sleeved on the outside of the inner heat conducting pipe, and a heating chamber is formed between the outer heat conducting pipe and the inner heat conducting pipe, the water storage tank is installed above the smoke exhaust pipe, the top of the water inlet pipe is communicated with the bottom of the water storage tank, the bottom of the water inlet pipe is communicated with the bottom of the heating chamber, the top of the water return pipe is communicated with the upper part of the water storage tank, the bottom of the water return pipe is communicated with the top of the heating chamber, a water supply pipe is provided on the top of the water storage tank, and a drain pipe is provided at the bottom of the water inlet pipe.

2. The stove waste heat water heater according to claim 1, characterized in that: A plurality of heat conducting plates are fixedly arranged between the outer heat conducting pipe and the inner wall of the smoke exhaust pipe, and the heat conducting plates are evenly distributed at equal angles around the central axis of the outer heat conducting pipe.

3. The stove waste heat water heater according to claim 1, characterized in that: A flow guide pipe with upper and lower openings is installed in the inner heat conduction pipe.

4. The stove waste heat water heater according to claim 1, characterized in that: A ash cleaning port is arranged on the side wall at the bottom of the smoke exhaust pipe, and a sealing cover is arranged on the ash cleaning port. The left and right sides of the sealing cover are plugged into the outer side wall of the smoke exhaust pipe.

5. The stove waste heat water heater according to claim 4, characterized in that: A handle is fixedly provided on the outer side wall of the closed cover.

6. The stove waste heat water heater according to claim 1, characterized in that: A valve is installed at the bottom of the water inlet pipe, and a valve is arranged on the drainage pipe.

7. The stove waste heat water heater according to claim 1, characterized in that: The top of the smoke exhaust pipe is bent toward the rear side of the stove body, and the water return pipe runs through the top of the smoke exhaust pipe.

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