Heat recovery device for hot frying cooking bench

Abstract

The utility model relates to the technical field of kitchen waste heat recycling, in particular to a heat recovery device for a hot frying cooking bench, which comprises a cooking bench component, the cooking bench component comprises a base and a ventilator arranged at the top of the base, and smoke generated when the cooking bench works can be exhausted from the ventilator; the heat exchange component comprises a water tank and a heat conduction component, the water tank is arranged at the top of the ventilation barrel, the bottom of the heat conduction component is connected with the ventilation barrel, a side heat release part of the heat conduction component extends into the water tank, the bottom of the heat conduction component is communicated with the ventilation barrel, and smoke can flow into the heat conduction component from the ventilation barrel. The heat release part on the side face of the heat conduction component extends into the water tank, heat of the flue gas extends into water in the water tank, heat exchange naturally occurs, moisture in the water tank absorbs the heat of the flue gas in the heat conduction component to be heated, and the flue gas releases heat and is cooled.

Description

Technical Field

[0001] This utility model relates to the field of kitchen waste heat recovery and utilization technology, and in particular to a heat recovery device for a stir-fry stove. Background Technology

[0002] With the increasing use of energy, the efficient utilization of energy is receiving more and more attention. Currently, natural gas is increasingly used in my country, and commercial gas stoves are widely used in restaurants and canteens. However, these stoves generate a large amount of high-temperature flue gas during operation. The working principle is that gas enters the stove through the inlet pipe, is regulated by the gas valve (by the user via a knob), and then enters the burner head, mixing with some air (this is called primary air). This mixture is ejected from the burner's flame holes and ignited by the ignition device to form flames (the air required for combustion is called secondary air). These flames heat the cookware placed on the pot support, and the combustible gas is discharged through the exhaust vent at a temperature of approximately 140 degrees Celsius. During this process, a portion of the heat generated by the gas stove is carried away by the flue gas, resulting in significant waste. Furthermore, the flue gas raises the temperature of the cooking area; the temperature in stir-frying rooms often exceeds 35 degrees Celsius, creating a harsh working environment. Therefore, effectively recovering the heat from the flue gas is the best way to improve energy efficiency and also reduce the temperature of the cooking area. The most common method is to recover waste heat from flue gas through heat exchangers. This process not only avoids other energy consumption and environmental pollution, but also facilitates installation, requires minimal space, and allows most of the waste heat to be absorbed by other fluids within the heat exchanger and used elsewhere, thus achieving efficient energy utilization and improving waste heat recovery efficiency.

[0003] In the heat recovery of flue gas, it is necessary to guide the flue gas out of the chimney and transfer the heat in the flue gas through heat exchangers and external media. However, after a long period of operation, dust will inevitably accumulate in the flue gas flow parts of the chimney and heat exchangers, which will reduce the flue gas flow effect or even cause blockage. Existing heat recovery devices are difficult to dismantle due to their complex structure, making cleaning troublesome. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the technical problem that the existing flue gas waste heat recovery device is difficult to clean, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a heat recovery device for a stir-fry stove, comprising a stove component, the stove component including a base and a ventilation duct disposed on the top of the base; and,

[0007] A heat exchange component, the heat exchange component including a water tank disposed at the top of the ventilation duct, and,

[0008] A heat-conducting component, the bottom of which is connected to the ventilation duct, and the heat-dissipating part on the side of the heat-conducting component extending into the water tank.

[0009] As a preferred embodiment of the heat recovery device for the hot wok stove of this utility model, the ventilation duct includes a chimney disposed on the top of the base, and the top of the chimney is provided with a cleaning hole.

[0010] As a preferred embodiment of the heat recovery device for the hot frying stove of this utility model, the bottom of the water tank is provided with a pressure groove, and the two ends of the water tank are provided with receiving cavities.

[0011] As a preferred embodiment of the heat recovery device for a hot wok stove of this utility model, wherein: a pressing channel is provided on the side of the accommodating cavity, and an opening is provided at the bottom of the accommodating cavity.

[0012] As a preferred embodiment of the heat recovery device for a hot wok stove according to this utility model, wherein: an L-shaped slider is provided inside the pressing channel, a protrusion is provided at the bottom of the L-shaped slider, and the bottom of the protrusion is processed into a wedge shape.

[0013] As a preferred embodiment of the heat recovery device for a hot wok stove of this utility model, wherein: an elastic element is provided at the end of the L-shaped slider away from the pressing channel, and the end of the elastic element away from the L-shaped slider is connected to the inner wall of the accommodating cavity.

[0014] As a preferred embodiment of the heat recovery device for a stir-fry stove of this utility model, wherein: a hook block is provided at the top of the chimney, the top of the hook block extends into the receiving cavity from the opening, and the top of the hook block is provided with a protruding part.

[0015] As a preferred embodiment of the heat recovery device for a hot wok stove of this utility model, the heat-conducting component includes a heat-conducting cylinder, a connecting cylinder is provided at the bottom of the heat-conducting cylinder, a limiting plate is provided at the bottom of the connecting cylinder, a heat exchange tube is provided at the top of the heat-conducting cylinder, and the end of the heat exchange tube away from the heat-conducting cylinder extends into a water tank.

[0016] As a preferred embodiment of the heat recovery device for the stir-fry stove of this utility model, a sealing ring is provided at the bottom of the limiting plate, and a lower clamping plate is provided on the side of the limiting plate away from the water tank.

[0017] In a preferred embodiment of the heat recovery device for a stir-fry stove according to this utility model, the thickness of the end of the limiting plate near the water tank is the same as the depth of the pressure groove.

[0018] The beneficial effects of this utility model's heat recovery device for a hot wok stove are as follows: This device uses a heat-conducting component to transfer the heat in the flue gas to the water in the heat exchange component, so that the residual heat in the flue gas can be recovered and utilized. At the same time, it is equipped with a heat exchange component and a heat-conducting component that are easy to disassemble, making the cleaning of the chimney and the heat-conducting component convenient. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of 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 overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the ventilation duct in this utility model.

[0022] Figure 3 This is a schematic diagram of the heat exchange component in this utility model.

[0023] Figure 4 This is a schematic diagram of the heat-conducting component in this utility model.

[0024] Figure 5 This is a schematic diagram of the limiting plate in this utility model. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1, referring to Figures 1-5 This is the first embodiment of the present invention, which provides a heat recovery device for a stir-fry stove, including a stove component 1. The stove component 1 includes a base 11 and a ventilation duct 12 disposed on the top of the base 11. The fumes generated when the stove is working are discharged from the ventilation duct 12; and...

[0029] The heat exchange component 2 includes a water tank 21 located at the top of the ventilation duct 12. This device transfers heat from the flue gas generated during stove operation to the water tank 21 to heat the water, thus recovering and utilizing waste heat. This also reduces the impact of flue gas heat on the ambient temperature. Furthermore, since hot water is frequently used in cooking to clean the stovetop, wash ingredients and cooking utensils, the heated water can be effectively utilized.

[0030] The bottom of the heat-conducting component 3 is connected to the ventilation duct 12. The heat-releasing part on the side of the heat-conducting component 3 extends into the water tank 21. The bottom of the heat-conducting component 3 is connected to the ventilation duct 12. The flue gas will flow into the heat-conducting component 3 from the ventilation duct 12. The heat-releasing part on the side of the heat-conducting component 3 extends into the water tank 21. The heat of the flue gas enters the water in the water tank 21, and heat exchange occurs naturally. The water in the water tank 21 absorbs the heat of the flue gas in the heat-conducting component 3 and is heated, while the flue gas releases heat and cools down.

[0031] Usage process: The fumes generated by cooking on the stove enter the heat-conducting component 3 through the ventilation duct 12. The heat-releasing part of the heat-conducting component 3 extends into the water in the water tank 21. The water in the water tank 21 absorbs the heat of the fumes in the heat-conducting component 3 and is heated. The fumes release heat and cool down, thus completing the heat recovery of the fumes and reducing the impact of the fumes' heat on the ambient temperature.

[0032] Example 2, refer to Figures 1-5 This is the second embodiment of the present invention. Unlike the previous embodiment, the ventilation duct 12 includes a chimney 121 disposed on the top of the base 11. The smoke generated in the stove will be discharged from the chimney 121. A cleaning hole 122 is provided on the top of the chimney 121. The cleaning hole 122 will open when the chimney 121 needs to be cleaned, so as to facilitate cleaning.

[0033] Furthermore, a pressure groove 22 is provided at the bottom of the sink 21, located on the inner side of the sink 21, near the pot on the stove. Receiving cavities 23 are provided at both ends of the sink 21, and pressing channels 24 are provided on the sides of the receiving cavities 23. An opening 25 is provided at the bottom of the receiving cavities 23. An L-shaped slider 26 is provided inside the pressing channel 24, and the L-shaped slider 26 can slide within the pressing channel 24. The end of the L-shaped slider 26 away from the center of the sink 21 can extend out of the receiving cavity 23 from the pressing channel 24. A protrusion 27 is provided at the bottom of the L-shaped slider 26, and the bottom of the protrusion 27 is machined into a wedge shape. An elastic element 28 is provided at the end of the L-shaped slider 26 away from the pressing channel 24. The end of the elastic element 28 away from the L-shaped slider 26 is connected to the inner wall of the receiving cavity 23, and the elastic element 28 is in a compressed state.

[0034] Furthermore, a hook block 13 is provided at the top of the chimney 121. The top of the hook block 13 extends into the receiving cavity 23 from the opening 25. The position of the hook block 13 at the top of the chimney 121 is the same as the position of the opening 25 of the receiving cavity 23. The top of the hook block 13 is provided with a protruding part. The protruding part of the hook block 13 is processed into a wedge shape that cooperates with the protrusion 27. When the hook block 13 is fully extended into the receiving cavity 23, the protruding part at the top of the hook block 13 will extend onto the protrusion 27 of the L-shaped slider 26, thereby hooking the L-shaped slider 26 and restricting the movement of the L-shaped slider 26 in the vertical direction, that is, restricting the movement of the water tank 21 in the vertical direction.

[0035] Furthermore, the heat-conducting component 3 includes a heat-conducting cylinder 31, which is installed on the cleaning hole 122 on the chimney 121. During operation, the flue gas enters the heat-conducting component 3 through the cleaning hole 122. A connecting cylinder 32 is provided at the bottom of the heat-conducting cylinder 31, and the heat-conducting cylinder 31 is connected to the connecting cylinder 32, which is also connected to the chimney 121. Therefore, the flue gas in the chimney 121 will enter the heat-conducting cylinder 31 through the connecting cylinder 32. A limiting plate 33 is provided at the bottom of the connecting cylinder 32, and a heat exchange tube 34 is provided at the top of the heat-conducting cylinder 31. The end of the heat exchange tube 34 away from the heat-conducting cylinder 31 extends into the water tank 21. Figure 4 As shown, the top of the heat exchange tube 34 is connected to the heat conduction cylinder 31, while the bottom of the heat exchange tube 34 extends into the water tank 21.

[0036] Usage process: After the heat-conducting component 3 is installed on the cleaning hole 122, the fumes generated by cooking on the stove will enter the connecting cylinder 32 through the cleaning hole 122 and then enter the heat-conducting cylinder 31. They will then enter the heat exchange tube 34 from the heat-conducting cylinder 31 and release heat into the water in the water tank 21. After releasing heat, they will return from the heat-conducting cylinder 31 to the chimney 121 and be discharged from the chimney 121. Meanwhile, the water in the water tank 21 is heated, completing the heat exchange process. When it is necessary to remove the water tank 21, simply press the L-shaped slider 26 and slide it towards the pressure groove 22 until the protrusion 27 separates from the hook block 13. At this time, the water tank 21 can be lifted off the chimney 121 to complete the removal of the water tank 21.

[0037] Example 3, referring to Figures 1-5 This is the third embodiment of the present invention. Unlike the previous embodiment, the bottom of the limiting plate 33 is provided with a sealing ring 36. When the heat exchange component 2 is installed on the top of the chimney 121, the limiting plate 33 will squeeze the sealing ring 36 to make it stick to the cleaning hole 122. The sealing ring 36 plays a sealing role to prevent the flue gas from escaping directly from the cleaning hole 122 as much as possible. A lower clamping plate 35 is provided on the side of the limiting plate 33 away from the water tank 21. The thickness between the limiting plate 33 and the lower clamping plate 35 is slightly greater than the thickness of the side of the cleaning hole 122. When the heat conduction component 3 is installed, the limiting plate 33 and the lower clamping plate 35 will lock the cleaning hole 122.

[0038] Furthermore, the thickness of the end of the limiting plate 33 near the water tank 21 is the same as the depth of the pressure groove 22. When installing the heat-conducting component 3, the end of the limiting plate 33 near the water tank 21 is pressed down by the water tank 21 and cannot be lifted, while the end of the limiting plate 33 away from the water tank 21, together with the lower clamping plate 35, jams the cleaning hole 122, so the heat-conducting component 3 is fixed.

[0039] Usage: When installing the heat exchange component 2 and the heat conduction component 3, first use the limiting plate 33 and the lower clamping plate 35 to hold the cleaning hole 122 in place. Then, place the heat conduction component 3 stably on top of the chimney 121. Next, press the pressure groove 22 of the water tank 21 against the end of the limiting plate 33 away from the lower clamping plate 35. At this time, the heat conduction component 3 is fixed. During the downward pressing process of the water tank 21, the protrusion 27 at the bottom of the L-shaped slider 26 first contacts the hook block 13. The hook block 13 will push the L-shaped slider 26 towards the pressure groove 22. The L-shaped slider 26 slides towards the pressure groove 22, compressing the elastic element 28 until the bottom of the water tank 21 contacts the top of the chimney 121. The protruding part of the top of the hook block 13 extends above the protrusion 27. At this time, the protrusion 27 and the protruding part of the hook block 13 will be misaligned in the vertical direction, and the elastic element 28 will rebound. The L-shaped hook block 13 will be hooked by the protrusion 27, and the water tank 21 will be fixed. Thus, the water tank 21 and the heat-conducting component 3 are both installed on the top of the chimney 121, which can recover waste heat.

[0040] When the device needs to be cleaned after working for a period of time, simply press the L-shaped slider 26 to lift the water tank 21. The limiting plate 33 will no longer be pressed by the water tank 21, and the heat-conducting component 3 can be easily removed from the cleaning hole 122. The cleaning hole 122 is opened, allowing for cleaning of the inside of the chimney 121 and cleaning of the disassembled heat-conducting component 3, making cleaning convenient.

[0041] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0042] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0043] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A heat recovery device for a stir-fry stove, characterized in that: include, A stove component (1), the stove component (1) including a base (11) and a ventilation duct (12) disposed on the top of the base (11); and, The heat exchange component (2) includes a water tank (21) disposed on the top of the ventilation duct (12), and, A heat-conducting component (3) is provided, the bottom of which is connected to the ventilation cylinder (12), and the heat-dissipating part on the side of the heat-conducting component (3) extends into the water tank (21).

2. The heat recovery device for a stir-fry stove as described in claim 1, characterized in that: The ventilation duct (12) includes a chimney (121) disposed on the top of the base (11), and a cleaning hole (122) is provided on the top of the chimney (121).

3. The heat recovery device for a stir-fry stove as described in claim 2, characterized in that: The bottom of the water tank (21) is provided with a pressure groove (22), and the two ends of the water tank (21) are provided with receiving cavities (23).

4. The heat recovery device for a stir-fry stove as described in claim 3, characterized in that: The receiving cavity (23) has a pressing channel (24) on its side and an opening (25) at its bottom.

5. The heat recovery device for a stir-fry stove as described in claim 4, characterized in that: The pressing channel (24) is provided with an L-shaped slider (26) inside, and a protrusion (27) is provided at the bottom of the L-shaped slider (26), and the bottom of the protrusion (27) is processed into a wedge shape.

6. The heat recovery device for a stir-fry stove as described in claim 5, characterized in that: An elastic element (28) is provided at one end of the L-shaped slider (26) away from the pressing channel (24), and the end of the elastic element (28) away from the L-shaped slider (26) is connected to the inner wall of the accommodating cavity (23).

7. The heat recovery device for a stir-fry stove as described in claim 6, characterized in that: The top of the chimney (121) is provided with a hook block (13), the top of the hook block (13) extends into the receiving cavity (23) from the opening (25), and the top of the hook block (13) is provided with a protruding part.

8. The heat recovery device for a stir-fry stove as described in claim 7, characterized in that: The heat-conducting component (3) includes a heat-conducting cylinder (31), a connecting cylinder (32) is provided at the bottom of the heat-conducting cylinder (31), a limiting plate (33) is provided at the bottom of the connecting cylinder (32), and a heat exchange tube (34) is provided at the top of the heat-conducting cylinder (31). The end of the heat exchange tube (34) away from the heat-conducting cylinder (31) extends into the water tank (21).

9. The heat recovery device for a stir-fry stove as described in claim 8, characterized in that: A sealing ring (36) is provided at the bottom of the limiting plate (33), and a lower clamping plate (35) is provided on the side of the limiting plate (33) away from the water tank (21).

10. The heat recovery device for a stir-fry stove as described in claim 9, characterized in that: The thickness of the limiting plate (33) near the end of the water tank (21) is the same as the depth of the pressure groove (22).

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