Cooking bench waste heat recovery device and cooking bench comprising same

Abstract

The utility model provides a cooking bench waste heat recovery device and a cooking bench comprising the same. The cooking bench waste heat recovery device comprises a cabinet body, a heating pipe, a water tank and a circulating water pump. The top of the cabinet body is used for arranging a stove, and a containing space is formed in the cabinet body. The heating pipe is provided with a water inlet and a water outlet, at least part of the heating pipe is used for surrounding the periphery of the stove, and circulating water in the heating pipe can flow to the water outlet from the water inlet surrounding the periphery of the stove. The water tank is arranged at the bottom of the containing space, a storage platform is formed on the upper surface of the water tank, and the water tank is provided with a hot water inlet and a cold water outlet. A water inlet of the heating pipe is communicated with a cold water outlet of the water tank, and a water outlet of the heating pipe is communicated with a hot water inlet of the water tank. The circulating water pump is arranged on the heating pipe and used for enabling circulating water in the water tank to flow through the heating pipe. Compared with the prior art, the cooking bench waste heat recovery device can increase the available space of a kitchen, heat preservation can be conducted on meals, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of kitchenware, and in particular to a stove waste heat recovery device and a stove containing the same. Background Technology

[0002] Existing waste heat recovery devices for gas stoves use heating tubes to collect waste heat. These tubes are designed in a spiral shape around the gas stove, with water circulating inside. The inlet and outlet of the heating tube are at opposite heights, with hot water rising and cold water sinking, continuously circulating and heating the water. Because this relies on natural water circulation, the hot water storage tank must be placed at a high position or next to the stove, and the water level in the storage tank must be higher than the spiral hot water tube, which restricts cooking activities and reduces the usable space in the kitchen. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a stove waste heat recovery device and a stove containing the device.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A waste heat recovery device for a stove, comprising:

[0006] The cabinet has a top for mounting the stove and an interior space for storage.

[0007] A heating element having an inlet and an outlet, at least a portion of the heating element being arranged around the stove, wherein circulating water within the heating element can flow from the inlet around the stove to the outlet.

[0008] A water tank is disposed at the bottom of the accommodating space, and a storage platform is formed on the upper surface of the water tank. The water tank has a hot water inlet and a cold water outlet.

[0009] The inlet of the heating element is connected to the cold water outlet of the water tank, and the outlet of the heating element is connected to the hot water inlet of the water tank.

[0010] A circulating water pump is installed on the heating pipe, and the circulating water pump is used to make the circulating water in the water tank flow through the heating pipe.

[0011] In this technical solution, a circulating water pump is used to circulate the water for the waste heat recovery device on the stovetop. The water tank is positioned at the bottom of the storage space, so it doesn't occupy the top of the cabinet, i.e., the stovetop surface and the space above it, thus not interfering with the user's cooking activities and increasing the usable space in the kitchen. Simultaneously, because the water tank is located at the bottom of the storage space, its upper surface forms a storage platform. Users can place food on this platform, utilizing the waste heat recovered from the stovetop to keep the food warm, enhancing the user experience.

[0012] Preferably, the cold water outlet and the hot water inlet are formed on the upper surface of the water tank.

[0013] In this technical solution, by setting the cold water outlet and hot water inlet on the upper surface of the water tank, the cold water outlet and hot water inlet are closer to the heating pipe, which can save the material used for the circulation pipe and also reduce the volume of the stove waste heat recovery device, thereby reducing the space occupied by the circulation pipe.

[0014] Preferably, the cold water outlet and the hot water inlet are located near the water tank, corresponding to the left and right edges of the cabinet.

[0015] The water inlet and the water outlet are located near the water tank, corresponding to the left and right edges of the cabinet.

[0016] In this technical solution, by setting the cold water outlet and hot water inlet near the left and right edges of the water tank corresponding to the stove, the space within the storage area is not significantly divided by the heating element, making it more convenient for users to use the storage platform and improving the utilization rate of the storage platform.

[0017] Preferably, the hot water inlet is located directly below the water outlet, the cold water outlet is located directly below the water inlet, and the portion of the heating element not surrounding the stove extends vertically along the side panel of the cabinet.

[0018] In this technical solution, by placing the hot water inlet directly below the outlet and the cold water outlet directly below the inlet, the heating pipe, located within the housing space, can be vertically installed near the side panel of the cabinet, saving space and piping.

[0019] Preferably, the water inlet and the water outlet are located on the same side of the left and right sides of the cabinet.

[0020] In this technical solution, by setting the water inlet and outlet to correspond to the same side of the left and right sides of the cabinet, the use of the storage space is made more convenient.

[0021] Preferably, the hot water inlet is located near the water tank, corresponding to the rear edge of the cabinet.

[0022] And / or, the cold water outlet is located near the water tank, corresponding to the front edge of the stove.

[0023] In this technical solution, by setting the water tank to circulate water from the back to the front, the temperature on the back side is higher than that on the front side. When users use the storage platform to keep food warm, they usually place the food that is cooked first on the back side of the storage platform and the food that is cooked later on the front side. Therefore, the temperature on the back side of the storage platform is better, the heat preservation effect is better, and it better meets the user's heat preservation needs.

[0024] Preferably, the water tank is provided with a plurality of baffles, which are arranged alternately to form a flow channel with an S-shaped structure within the water tank.

[0025] In this technical solution, by setting a baffle inside the water tank, the flow path of the circulating water in the water tank can be extended, thereby enhancing the heat exchange between the circulating water and the air and food in the container space, and improving the heat preservation effect of the food.

[0026] Preferably, the waste heat recovery device for the stove also includes a thermoelectric generator, which is installed on the heating tube and can convert the temperature difference of the circulating water in the heating tube into electrical energy.

[0027] In this technical solution, by setting a thermoelectric generator at a suitable position on the heating tube, the utilization methods of the recovered waste heat can be increased, and the function of the stove waste heat recovery device can be enriched.

[0028] Preferably, the thermoelectric generator is electrically connected to the circulating water pump, and the thermoelectric generator can provide power to the circulating water pump.

[0029] In this technical solution, by electrically connecting the circulating water pump to the thermoelectric generator, the power generated by the thermoelectric generator is used to operate the circulating water pump. This eliminates the need for external power lines to the circulating water pump, simplifies the structure of the stove waste heat recovery device, and makes the stove waste heat recovery device suitable for scenarios without power.

[0030] Preferably, the circulating water pump is located on the heating pipe near the cold water outlet;

[0031] And / or, the circulating water pump is disposed within the containment space.

[0032] In this technical solution, by placing the circulating water pump near the cold water outlet of the heating pipe, where the temperature is lower, the operating environment of the circulating water pump is more suitable, which can extend the service life of the circulating water pump.

[0033] Preferably, the periphery of the accommodating space is tin-plated.

[0034] In this technical solution, by tin-plating the inner surface of the containment space, heat loss can be reduced and the insulation effect of the containment space can be enhanced.

[0035] A stove includes a cooktop and a waste heat recovery device as described above. The cooktop is disposed on the top of the cabinet of the waste heat recovery device, and at least a portion of the heating element of the waste heat recovery device is arranged close to the burner of the cooktop.

[0036] The positive and progressive effects of this utility model are as follows:

[0037] This waste heat recovery device for the stove and the stovetop containing it utilizes a circulating water pump to circulate water for the device. The water tank is positioned at the bottom of the storage space, preventing it from occupying the top of the cabinet (the stovetop surface) or the space above it, thus not interfering with cooking and increasing usable kitchen space. Furthermore, because the water tank is located at the bottom, its upper surface forms a platform where users can place food to keep it warm using the recovered waste heat, enhancing the user experience. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of a stove waste heat recovery device according to an embodiment of the present invention.

[0039] Figure 2 This is a schematic diagram of the structure of a water tank according to an embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] Stove waste heat recovery device 100

[0042] Cabinet 1

[0043] Heating element 2

[0044] Water tank 3

[0045] Hot water inlet 21

[0046] Cold water outlet 22

[0047] Storage Platform 23

[0048] partition 24

[0049] Circulating water pump 4

[0050] Thermoelectric generator 5 Detailed Implementation

[0051] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0052] like Figure 1 and Figure 2 As shown, this embodiment provides a stove, which includes a stove (not shown) and a stove waste heat recovery device 100. The stove waste heat recovery device 100 includes a cabinet 1, a heating element 2, a water tank 3, and a circulating water pump 4. The top of the cabinet 1 is used to house the stove, and the interior of the cabinet 1 has a storage space. The heating element 2 has an inlet and an outlet. The top part of the heating element 2 is used to surround the burner of the stove. The heating element 2 is bent into a ring shape at this point to match the external shape of the burner. The circulating water in the heating element 2 can flow from the inlet around the stove, absorbing heat from the burner, and finally flowing to the outlet.

[0053] A water tank 3 is located at the bottom of the accommodating space, and its upper surface forms a storage platform 23. The water tank 3 has a hot water inlet 21 and a cold water outlet 22. The inlet of the heating pipe 2 is connected to the cold water outlet 22 of the water tank 3, and the outlet of the heating pipe 2 is connected to the hot water inlet 21 of the water tank 3. A circulating water pump 4 is installed on the heating pipe 2, and the circulating water pump 4 is used to make the circulating water in the water tank 3 flow through the heating pipe 2. By setting the circulating water pump 4, the water circulation of the stove waste heat recovery device 100 is realized. By setting the water tank 3 at the bottom of the accommodating space, the water tank 3 does not occupy the top of the cabinet 1, that is, the countertop of the stove and the space above the countertop, and does not affect the user's cooking actions. Compared with the existing stove waste heat recovery device 100, which occupies a lot of countertop space, the stove waste heat recovery device 100 in this embodiment can increase the usable space of the kitchen. Meanwhile, since the water tank 3 is located at the bottom of the storage space, a storage platform 23 is formed on the upper surface of the water tank 3. Users can place food on the storage platform 23 to keep the food warm by utilizing the residual heat recovered from the stove, thus improving the user experience.

[0054] Specifically, in this embodiment, the cold water outlet 22 and the hot water inlet 21 are formed on the upper surface of the water tank 3. Since the heating pipe 2 is located above the water tank 3, by setting the cold water outlet 22 and the hot water inlet 21 on the upper surface of the water tank 3, both the cold water outlet 22 and the hot water inlet 21 are closer to the heating pipe 2, which can save the material used for the circulation pipe and also reduce the volume of the stove waste heat recovery device 100, thereby reducing the space occupied by the circulation pipe.

[0055] Of course, in other embodiments, the cold water outlet 22 and the hot water inlet 21 can also be set at any position in the water tank 3, and water circulation can be achieved by the circulating water pump 4.

[0056] In this embodiment, the cold water outlet 22 and the hot water inlet 21 are positioned near the water tank 3, corresponding to the left and right edges of the cabinet 1, and the water inlet and outlet are also positioned near the water tank 3, corresponding to the left and right edges of the cabinet 1. By positioning the cold water outlet 22 and the hot water inlet 21 near the water tank 3, corresponding to the left and right edges of the stovetop, the space within the storage area is not significantly divided by the heating pipe 2, making it more convenient for users to use the storage platform 23 and improving the utilization rate of the storage platform 23.

[0057] Specifically, in this embodiment, the hot water inlet 21 is located directly below the outlet, and the cold water outlet 22 is located directly below the inlet. The portion of the heating element 2 that is not surrounding the stove extends vertically near the side panel of the cabinet 1. By placing the hot water inlet 21 directly below the outlet and the cold water outlet 22 directly below the inlet, the portions of the heating element 2 connecting the hot water inlet 21 and the outlet, and the portions connecting the cold water outlet 22 and the inlet, can be vertically positioned near the side panel of the cabinet 1, saving space and piping.

[0058] Of course, in other embodiments, the heating tubes 2 that are not surrounding the stove can also be arranged according to the positions of the water inlet, water outlet, hot water inlet 21 and cold water outlet 22, which will not be described in detail here.

[0059] In this embodiment, the water inlet and outlet are located on the same side of the left and right sides of the cabinet 1. Specifically, in this embodiment, both the water inlet and outlet are located on the left side of the cabinet 1. By aligning the water inlet and outlet with the same side of the left and right sides of the cabinet 1, the use of the storage space becomes more convenient.

[0060] Furthermore, in this embodiment, the hot water inlet 21 is located near the water tank 3, corresponding to the rear edge of the cabinet 1, and the cold water outlet 22 is located near the water tank 3, corresponding to the front edge of the stove. By setting the water tank 3 to circulate water from the rear to the front, the temperature at the rear is higher than that at the front. When users use the storage platform 23 to keep food warm, they usually place the food that is cooked first on the rear side of the storage platform 23 and the food that is cooked later on the front side. Therefore, the temperature at the rear side of the storage platform 23 is better, the heat preservation effect is better, and it better meets the user's heat preservation needs.

[0061] In this embodiment, a plurality of baffles 24 are provided inside the water tank 3. The baffles 24 are arranged in an alternating pattern to form an S-shaped flow channel inside the water tank 3. By providing baffles 24 inside the water tank 3, the flow path of the circulating water inside the water tank 3 can be extended, thereby enhancing the heat exchange between the circulating water and the air and food in the containing space, and improving the heat preservation effect on the food.

[0062] Specifically, the more baffles 24 there are, the longer the flow path of the circulating water in the water tank 3, and the better the heat exchange effect. However, too many baffles 24 may cause excessive flow resistance of the circulating water. Therefore, the number of baffles 24 can be reasonably arranged according to actual needs, which will not be elaborated here.

[0063] In this embodiment, the stove waste heat recovery device 100 also includes a thermoelectric generator 5, which is installed on the heating pipe 2. The thermoelectric generator 5 can convert the temperature difference of the circulating water in the heating pipe 2 into electrical energy. By installing the thermoelectric generator 5 at an appropriate position on the heating pipe 2, the utilization methods of the recovered waste heat can be increased, enriching the functions of the stove waste heat recovery device 100.

[0064] Specifically, in this embodiment, the thermoelectric generator 5 is electrically connected to the circulating water pump 4, and the thermoelectric generator 5 can provide electrical energy to the circulating water pump 4. By electrically connecting the circulating water pump 4 to the thermoelectric generator 5, the operation of the circulating water pump 4 is achieved using the electrical energy generated by the thermoelectric generator, so that the circulating water pump 4 does not need to be connected to an external wire, which simplifies the structure of the stove waste heat recovery device 100 and makes the stove waste heat recovery device 100 suitable for scenarios without power.

[0065] Specifically, the thermoelectric generator 5 has a semiconductor heating element. The thermoelectric generator 5 is positioned at a temperature of 100℃-120℃ on the heating element 2. A portion of the heat recovered around the stove is used to generate an electric current via the thermoelectric generator 5, which powers the circulating water pump 4. The remaining heat is used to circulate water and heat the warming cabinet. When cooking begins, the water in the heating element 2 heats up, causing the thermoelectric generator to generate electricity. The resulting current drives the circulating water pump 4 to circulate the water, ultimately raising the temperature of the water tank 3 and thus the warming cabinet.

[0066] Of course, in other embodiments, when the thermoelectric power generation device 5 generates a large amount of electrical energy, the excess electrical energy can be stored in batteries or used to power other suitable devices, referring to existing technologies. The specific implementation of the thermoelectric power generation device 5 is existing technology and will not be described in detail here.

[0067] In this embodiment, the circulating water pump 4 is located near the cold water outlet 22 of the heating pipe 2, and is housed within the receiving space. By placing the circulating water pump 4 within the receiving space near the cold water outlet 22 of the heating pipe 2, where the temperature is lower, the operating environment of the circulating water pump 4 is more suitable, which can extend the life of the circulating water pump 4 and prevent the circulating water pump 4 from occupying the space on the countertop.

[0068] In this embodiment, the perimeter walls of the accommodating space are tin-plated. That is, the inner surface of the cabinet 1 is tin-plated. By tin-plating the inner surface of the accommodating space, heat loss can be reduced and the insulation effect of the accommodating space can be enhanced.

[0069] Of course, in other embodiments, other thermal insulation materials in the prior art can also be provided on the inner surface of the cabinet 1, which will not be elaborated here.

[0070] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A residual heat recovery device for a cooktop, characterized by, It includes: The cabinet body, the top of the cabinet body is used to set the stove, the inside of the cabinet body has a containing space; The heating pipe has a water inlet and a water outlet, at least part of the heating pipe is used to surround the stove, and the circulating water in the heating pipe can flow around the stove from the water inlet to the water outlet; The water tank is arranged at the bottom of the containing space, the upper surface of the water tank forms a storage platform, the water tank has a hot water inlet and a cold water outlet; The water inlet of the heating pipe and the cold water outlet of the water tank are communicated, and the water outlet of the heating pipe and the hot water inlet of the water tank are communicated; The circulating water pump is arranged on the heating pipe, and the circulating water pump is used to make the circulating water in the water tank flow through the heating pipe.

2. The cooktop waste heat recovery device of claim 1, wherein, The cold water outlet and the hot water inlet are formed on the upper surface of the water tank.

3. The cooktop waste heat recovery device of claim 2, wherein, The cold water outlet and the hot water inlet are arranged near the left and right side edges of the water tank corresponding to the cabinet body; And / or, the water inlet and the water outlet are arranged near the left and right side edges of the water tank corresponding to the cabinet body.

4. The cooktop waste heat recovery device of claim 3, wherein, The hot water inlet is arranged directly below the water outlet, the cold water outlet is arranged directly below the water inlet, and the part of the heating pipe not surrounding the stove extends in the vertical direction near the side plate of the cabinet body; And / or, the water inlet and the water outlet are arranged on the same side of the left and right sides of the cabinet body.

5. The cooktop waste heat recovery device of claim 4, wherein, The hot water inlet is arranged near the rear side edge of the water tank corresponding to the cabinet body; And / or, the cold water outlet is arranged near the front side edge of the water tank corresponding to the cabinet body.

6. The cooktop waste heat recovery device of claim 1, wherein, A plurality of partitions are arranged in the water tank, and the plurality of partitions are staggered and spaced to form an S-shaped flow channel in the water tank.

7. The cooktop waste heat recovery device of claim 1, wherein, The stove waste heat recovery device further comprises a thermoelectric power generation device, the thermoelectric power generation device is arranged on the heating pipe, and the thermoelectric power generation device can convert the temperature difference of the circulating water in the heating pipe into electric energy.

8. The cooktop waste heat recovery device of claim 7, wherein, The thermoelectric power generation device is electrically connected with the circulating water pump, and the thermoelectric power generation device can provide electric energy for the circulating water pump.

9. The cooktop waste heat recovery device of any one of claims 1-8, wherein, The circulating water pump is arranged at the position of the heating pipe near the cold water outlet; And / or, the circulating water pump is arranged in the containing space.

10. The cooktop waste heat recovery device of any one of claims 1-8, wherein, The circumferential wall of the containing space is tinned.

11. A cooktop comprising a hob, characterized in that The stove further comprises the stove waste heat recovery device according to any one of claims 1-10, the stove is arranged on the top of the cabinet body of the stove waste heat recovery device, and at least part of the heating pipe of the stove waste heat recovery device is arranged near the burner of the stove.

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