Fuel gas waste heat automatic recovery energy-saving device

Abstract

The utility model discloses a gas waste heat automatic recovery energy-saving device which comprises a cooking bench body and supporting legs. The gas stove has the advantages that the heat conduction water tank and the heat conduction cavity are arranged, when the gas stove is used, generated high-temperature flue gas can be collected by the collecting cover above and guided into the snake-shaped heat conduction pipe in the heat conduction water tank in a centralized mode through multiple sets of pipelines, the retention time of the flue gas can be prolonged through the bent structure of the snake-shaped heat conduction pipe, and the heat conduction efficiency of the gas stove is improved. In addition, the heat generated by the use of the cooking bench can be transmitted to the heat conduction fins through the bench surface and diffused into the water body in the heat conduction cavity through the heat conduction fins, the types of waste heat utilization can be effectively enriched through the cooperative use of multiple groups of different structures, and the utilization rate of waste heat is improved. The waste heat recovery range is expanded, the overall waste heat recovery effect is improved, and the waste heat recovery device has the advantages of being wide in waste heat recovery range, good in waste heat recovery effect and capable of achieving multi-type recovery.

Description

Technical Field

[0001] This utility model relates to the field of gas stove technology, specifically to an automatic waste heat recovery and energy-saving device for gas stoves. Background Technology

[0002] A gas-fired wok stove is a kitchen appliance that uses fuels such as liquefied petroleum gas, manufactured gas, or natural gas for direct-fire heating.

[0003] Gas stoves generate a lot of heat when they are working, which is directly dissipated into the working environment, making the cooking environment less comfortable and reducing the enjoyment of cooking. Some of the dissipated heat is directly dissipated into the air with the flow of flue gas, while the rest is transferred to the entire surface of the stove through the heat conduction of the stove. The dissipated heat cannot be effectively utilized and can only be wasted and lost in the natural environment. In the current situation of non-renewable and gradually decreasing energy, the full utilization of energy is crucial for energy conservation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic waste heat recovery and energy-saving device for gas, which has the advantages of wide waste heat recovery range, good waste heat recovery effect, and multiple types of recovery, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the advantages of wide-ranging waste heat recovery, good waste heat recovery effect, and multiple types of recovery, the specific technical solution adopted by this utility model is as follows:

[0008] An automatic waste heat recovery and energy-saving device for gas combustion includes a stove body and supporting legs. A tabletop is welded to the top of the stove body, and a back plate is welded to one side of the top of the tabletop. A heat-conducting cavity is formed inside the tabletop, and several sets of heat-conducting fins are provided at the top of the heat-conducting cavity where it contacts the tabletop. A collection hood is installed at the top of one side of the back plate, and the inside of the collection hood is connected to a gas collection box through multiple sets of gas-conducting branch pipes. The gas collection box is connected to a hot water tank through a main gas-conducting pipe. Both the hot water tank and the gas collection box are located inside the back plate. A serpentine heat-conducting pipe is provided inside the hot water tank. One end of the serpentine heat-conducting pipe is connected to the main gas-conducting pipe, and the other end of the serpentine heat-conducting pipe passes through one side of the back plate and is connected to an exhaust pipe.

[0009] Furthermore, liquid level sensors are installed in both the heat conduction cavity and the hot water tank.

[0010] Furthermore, the main body of the stove is equipped with several sets of water inlet pipes, which are connected to the heat conduction chamber and the hot water tank respectively, and the water inlet pipes are equipped with solenoid valves.

[0011] Furthermore, a pot platform is provided on the platform, and a furnace is provided on the surface of the pot platform.

[0012] Furthermore, drain pipes are installed on both one side of the heat conduction cavity and the other side of the heat conduction tank.

[0013] Furthermore, a control panel is installed on one side of the main body of the stove.

[0014] Furthermore, several sets of support legs are symmetrically welded around the bottom of the main body of the stove.

[0015] Furthermore, a slag discharge trough is provided on one side of the top of the tabletop, and a filter screen is installed at the top of the slag discharge trough.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an automatic waste heat recovery and energy-saving device for gas, which has the following beneficial effects:

[0018] This utility model is equipped with a hot water tank and a heat conduction cavity. When the gas stove is in use, the high-temperature flue gas generated can be collected by the collection hood above and then guided into the serpentine heat conduction pipe in the hot water tank through multiple sets of pipes. The bending structure of the serpentine heat conduction pipe can prolong the retention time of the flue gas, allowing the heat to be transferred more fully to the surrounding water. In addition, the heat generated by the use of the stove will be transferred to the heat conduction fins through the stove surface and then diffused into the water in the heat conduction cavity. Through the combined use of multiple sets of different structures, the types of waste heat utilization can be effectively enriched, the scope of waste heat recovery can be expanded, and the overall waste heat recovery effect can be improved. It has the advantages of wide waste heat recovery range, good waste heat recovery effect, and multiple types of recovery. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an automatic waste heat recovery and energy-saving device for gas according to an embodiment of the present utility model;

[0021] Figure 2This is a schematic diagram of the serpentine heat pipe structure of an automatic waste heat recovery and energy-saving device for gas according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the collection hood of an automatic waste heat recovery and energy-saving device for gas according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the heat-conducting fins of an automatic waste heat recovery and energy-saving device for gas according to an embodiment of the present utility model.

[0024] In the picture:

[0025] 1. Main body of the stove; 2. Water inlet pipe; 3. Solenoid valve; 4. Countertop; 5. Heat conduction chamber; 6. Heat conduction fins; 7. Slag discharge trough; 8. Filter screen; 9. Pot platform; 10. Furnace chamber; 11. Back panel; 12. Collection cover; 13. Liquid level sensor; 14. Gas collection box; 15. Gas branch pipe; 16. Gas main pipe; 17. Hot water tank; 18. Serpentine heat conduction pipe; 19. Exhaust pipe; 20. Drain pipe; 21. Control panel; 22. Support legs. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, an automatic waste heat recovery and energy-saving device for gas is provided.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, an automatic waste heat recovery and energy-saving device for gas according to an embodiment of the present invention includes a stove body 1 and a support leg 22. A tabletop 4 is welded to the top of the stove body 1. A back plate 11 is welded to one side of the top of the tabletop 4. A heat-conducting cavity 5 is opened inside the tabletop 4. Several sets of heat-conducting fins 6 are provided at the top of the heat-conducting cavity 5 in contact with the tabletop 4. A collection cover 12 is installed at the top of one side of the back plate 11. The inside of the collection cover 12 is connected to the gas collection box 14 through a gas guide branch pipe 15. The gas guide branch pipe 15 is provided in multiple sets. The gas collection box 14 is connected to the hot water tank 17 through a gas guide main pipe 16. The hot water tank 17 and the gas collection box 14 are both located inside the back plate 11. A serpentine heat-conducting pipe 18 is provided inside the hot water tank 17. One end of the serpentine heat-conducting pipe 18 is connected to the gas guide main pipe 16, and the other end of the serpentine heat-conducting pipe 18 passes through one side of the back plate 11 and is connected to the exhaust pipe 19.

[0029] In one embodiment, a liquid level sensor 13 is installed in both the heat conduction cavity 5 and the hot water tank 17. The liquid level sensor 13 is set to detect the liquid level in the above structure to avoid dry burning caused by the liquid level being too low. At the same time, in order to ensure the monitoring of the temperature after the liquid waste heat is utilized, a corresponding temperature sensor can be installed to detect the liquid temperature. Since there are various types of temperature sensors and the application technology is mature, personnel can select according to their needs and implement control through programming, so it will not be described in detail.

[0030] In one embodiment, the stove body 1 is provided with several sets of water inlet pipes 2 inside, and the water inlet pipes 2 are respectively connected to the heat conduction cavity 5 and the heat conduction tank 17. The water inlet pipes 2 are provided with solenoid valves 3. The solenoid valves 3 are set to cooperate with the liquid level sensor 13 to detect the liquid level change and perform liquid replenishment operation in time to avoid dry burning due to insufficient water.

[0031] In one embodiment, a pot stand 9 is provided on the countertop 4, and a furnace 10 is provided on the surface of the pot stand 9. The pot stand 9 and the furnace 10 are the basic structure of the stove, which will not be described in detail here. Due to the setting of the pot stand 9 and the slag discharge trough 7, the heat conduction cavity 5 inside the countertop 4 has openings at the positions corresponding to the above structure, and the openings are sealed by welding metal plates, which not only ensures the normal installation of the structure, but also ensures that the liquid inside the heat conduction cavity 5 will not leak out.

[0032] In one embodiment, a drain pipe 20 is installed on one side of the heat conduction cavity 5 and the other side of the heat conduction tank 17. The drain pipe 20 can be connected to an external pipe to discharge the liquid after the waste heat has been heated and reused. At the same time, it can ensure that the unheated liquid can be replenished in time, so as to continue to recover and reuse the waste heat.

[0033] In one embodiment, a control panel 21 is installed on one side of the main body 1 of the stove. The control panel 21 is set up to control the internal structure of the stove. Since the control panel 21 is of various types and the application technology is mature, the personnel can select according to their needs and implement control through programming. Therefore, it will not be described in detail.

[0034] In one embodiment, several sets of support legs 22 are symmetrically welded around the bottom of the stove body 1, which can support and fix the stove body 1.

[0035] In one embodiment, a slag drain 7 is provided on one side of the top of the countertop 4, and a filter screen 8 is installed on the top of the slag drain 7. The slag drain 7 is designed to drain excess wastewater and food scraps from the countertop 4, while the filter screen 8 is designed to block solid impurities and prevent clogging of the slag drain 7.

[0036] Working principle: In actual use, the main body 1 of the stove can be connected to the gas pipeline, enabling the pot 9 to perform combustion and heating operations smoothly. When the pot 9 is cooking, the generated high-temperature flue gas can float upwards and be captured by the top collection hood 12. At this time, the high-temperature flue gas will enter the gas collection box 14 through the opening inside the collection hood 12 along the gas guide branch pipe 15, and finally be discharged from the gas guide main pipe 16 in the middle of the gas collection box 14 into the serpentine heat conduction pipe 18 inside the hot water tank 17. Through multiple sets of gas guide branch pipes 15, The distributed high-temperature flue gas is collected and finally discharged from a single set of main exhaust pipes 16, thus concentrating and guiding the high-temperature flue gas. The high-temperature flue gas can then flow along the bends of the serpentine heat-conducting pipes 18. Due to the long trajectory of the serpentine heat-conducting pipes 18, the residence time of the high-temperature flue gas is extended, allowing the heat in the flue gas to be more fully transferred to the water in the hot water tank 17, thereby heating the water and completing the waste heat utilization operation. The flue gas, having had its heat transferred, can be introduced to the outside through the exhaust pipe 19. In the flue gas treatment equipment of the department, the flue gas is filtered to achieve the standard emission of the flue gas. In addition to the waste heat utilization of high-temperature flue gas, the heat generated by the combustion of gas will heat the boiler 9, and the boiler 9 will transfer the heat to the platform 4 on which it is located. Since the platform 4 has a heat conduction cavity 5 inside and multiple sets of heat conduction fins 6 at the contact position between the heat conduction cavity 5 and the platform 4, the heat generated by the platform 4 can be transferred to the water in the heat conduction cavity 5 through the heat conduction fins 6, so as to realize the waste heat utilization again. Through multiple sets of different structures When used in combination, it can effectively enrich the types of waste heat utilization, thereby improving the overall waste heat recovery effect and achieving energy-saving and environmental protection effects. No additional energy supply is required to heat the water, and the heated water can be used for indoor heating. Through the utilization of waste heat and water exchange inside the heat conduction chamber 5, it can effectively prevent the countertop 4 from overheating and ensure the performance of the countertop 4. It does not require the tap to run water for too long, ensuring the quality of the stove. The device as a whole has the advantages of wide waste heat recovery range, good waste heat recovery effect, and multiple types of recovery.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas waste heat automatic recovery energy-saving device, comprising a cooking table main body (1) and a supporting leg (22), characterized in that, The top of the stove body (1) is welded with a table top (4), one side of the top of the table top (4) is welded with a back plate (11), a heat conduction cavity (5) is arranged in the table top (4), a plurality of groups of heat conduction fins (6) are arranged at the top end of the heat conduction cavity (5) in contact with the table top (4), a collecting cover (12) is installed on the top of one side surface of the back plate (11), the collecting cover (12) is connected with a gas collecting box (14) through a gas guide branch pipe (15), and the gas guide branch pipe (15) is provided with a plurality of groups, the gas collecting box (14) is connected with a heat conduction water tank (17) through a gas guide main pipe (16), the heat conduction water tank (17) and the gas collecting box (14) are arranged in the back plate (11), a serpentine heat conduction pipe (18) is arranged in the heat conduction water tank (17), one end of the serpentine heat conduction pipe (18) is connected with the gas guide main pipe (16), and the other end of the serpentine heat conduction pipe (18) penetrates through one side of the back plate (11) and is connected with an exhaust pipe (19).

2. The automatic gas waste heat recovery energy saving device according to claim 1, characterized in that, The heat conduction cavity (5) and the heat conduction water tank (17) are provided with liquid level sensors (13).

3. The automatic gas waste heat recovery energy saving device according to claim 1, characterized in that, A plurality of groups of water inlet pipes (2) are arranged in the stove body (1), and the water inlet pipes (2) are connected with the heat conduction cavity (5) and the heat conduction water tank (17) respectively, and the water inlet pipes (2) are provided with electromagnetic valves (3).

4. The automatic gas waste heat recovery energy saving device according to claim 1, characterized in that, The table top (4) is provided with a pot table (9), and the surface of the pot table (9) is provided with a hearth (10).

5. The automatic gas waste heat recovery energy saving device according to claim 1, characterized in that, The heat conduction cavity (5) and the heat conduction water tank (17) are provided with liquid level sensors (13).

6. The automatic gas waste heat recovery energy saving device according to claim 1, characterized in that, The stove body (1) is provided with a control panel (21) on one side.

7. The automatic gas waste heat recovery energy saving device according to claim 1, characterized in that, A plurality of groups of supporting legs (22) are symmetrically welded on the bottom of the stove body (1).

8. The automatic gas waste heat recovery energy saving device according to claim 1, characterized in that, The top of the table top (4) is provided with a slag discharge groove (7), and the top of the slag discharge groove (7) is provided with a filter screen (8).

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