Cooking range with heat retaining function

Abstract

The utility model discloses a range table with heat preservation function, by range table main part, annular heat exchange cover, water storage container and first pipeline composition. Range table main part top mesa is equipped with the pot installation hole for placing cooking utensil, annular heat exchange cover is hollow ring structure, is located range table main part inside and with the pot installation hole corresponds, its inner ring surface is the arc heat conduction surface of adapting with the pot outer wall, water storage container is located range table main part outside, and its highest water level is higher than annular heat exchange cover top, first pipeline connects annular heat exchange cover and water storage container, forms the intercommunication loop of realizing natural convection by water temperature difference. The utility model utilizes the waste heat of cooking utensil, heats the water in water storage container through heat cycle, can both heat preservation to utensil, can also utilize hot water to provide the thawing or preheating function for the food material in the dish basin on water storage container, realized the integration of cooking, heat preservation and food material pretreatment, has the advantages of energy -conserving, efficient, simple structure.

Description

Technical Field

[0001] This utility model relates to the field of commercial dining kitchen technology, specifically to a stove with heat preservation function. Background Technology

[0002] In the current catering industry, the core function of a stove is limited to directly heating pots and pans for cooking. However, in actual cooking processes, two common shortcomings exist: Firstly, there's the issue of temporarily keeping food warm after cooking. If dishes cannot be eaten immediately after cooking, they need to be kept warm. Current practices typically involve transferring them to dedicated warming equipment or keeping the stove continuously heated at low power. The former is cumbersome and takes up extra space; the latter not only wastes energy but also easily leads to moisture loss, poor taste, and even burning of the food.

[0003] Secondly, there's the issue of thawing or preheating ingredients before cooking. For frozen ingredients or sauces that require heating, a microwave or a separate water bath is usually necessary. This process is separate from the main cooking flow, requiring additional equipment and operation, thus reducing overall cooking efficiency.

[0004] Currently, the market lacks a cooktop that integrates cooking, heat preservation, and food pretreatment functions. A significant amount of waste heat generated during cooking is not effectively utilized, while heat preservation and preheating require additional energy. Therefore, designing a cooktop that can recycle heat energy and simultaneously preserve dishes and preheat ingredients is crucial for improving cooking efficiency and reducing energy consumption. Utility Model Content

[0005] In order to overcome the above-mentioned defects of existing stoves, this utility model provides a stove with heat preservation function.

[0006] The technical solution adopted by this utility model is as follows: a stove with heat preservation function, comprising: a stove body, the top of which is provided with a tabletop, the tabletop having a pot mounting hole for placing cooking pots; an annular heat exchange sleeve, which is a hollow annular structure, fixedly installed inside the stove body, and its position corresponds to the pot mounting hole, the inner annular heat exchange sleeve being an arc-shaped heat-conducting surface adapted to the outer contour of the cooking pot; a water storage container, disposed outside the stove body, the maximum water level of which is higher than the top of the annular heat exchange sleeve; and a first pipeline connecting the annular heat exchange sleeve and the water storage container to form a connected loop that relies on the water temperature difference to achieve natural convection.

[0007] Preferably, the table surface has at least two pot mounting holes, each pot mounting hole is provided with an annular heat exchange sleeve below it, and each annular heat exchange sleeve is interconnected through a second pipeline.

[0008] Preferably, it further includes a support frame, which is detachably disposed above the opening of the water storage container; the support frame is used to support the vegetable bowl and to submerge the bottom of the vegetable bowl below the liquid level in the water storage container.

[0009] Preferably, the vegetable bowl is a stainless steel rectangular bowl with a flared edge, the supporting frame is a stainless steel frame structure, and the vegetable bowl is placed on the supporting frame.

[0010] Preferably, one end of the supporting frame is positioned and connected to the positioning support provided on the main body of the stove via a rotating shaft.

[0011] Preferably, the bottom of the water storage container is connected to a drain pipe, and the drain pipe is equipped with a drain valve.

[0012] This utility model has the following beneficial effects: This invention utilizes an annular heat exchange jacket located inside the stove body and an external water storage container, connected by pipes to form a natural convection loop driven by the temperature difference of the water. During cooking, the residual heat of the cookware continuously heats the water inside the annular heat exchange jacket. The hot water, due to its lower density, automatically rises and flows into the water storage container, while the low-temperature water in the storage container sinks and replenishes the annular heat exchange jacket, forming a continuous heat cycle that requires no external power.

[0013] This structure efficiently integrates three major functions: cooking, heat preservation, and food pretreatment. On one hand, the system can recover and utilize the residual heat from the cooking pot to heat the water in the storage container, thus providing a stable heat source for the food bowls placed inside, enabling defrosting or preheating of the food and improving pre-cooking efficiency. On the other hand, after cooking, this cycle continues to provide gentle heat to the pot, preventing the food from cooling down quickly, achieving energy-saving and convenient heat preservation, and avoiding damage to the texture of food caused by repeated or prolonged high-temperature heating.

[0014] The overall solution is simple and reliable, requires no electric components, has low manufacturing costs and significant energy-saving effects, and is particularly suitable for commercial kitchen scenarios that require high efficiency and low energy consumption, effectively solving the problems of single function and energy waste of traditional stoves. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external appearance of an embodiment of the present utility model.

[0016] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the main body of the stove in an embodiment of this utility model.

[0018] Figure 4This is a schematic diagram of the installation of the water storage container, the supporting frame, and the vegetable basin in an embodiment of this utility model.

[0019] 1-Stove body, 1.1-Countertop, 1.2-Potware mounting holes, 1.3-Positioning support; 2-Cooking cookware; 3- Annular heat exchanger jacket; 4-Water storage container; 4.1-Drain pipe; 5-First pipeline; 6-Load-bearing frame; 7-Dish basin; 8-Second pipeline. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0021] In the embodiments, such as Figure 1-4 The image shows a stove with heat preservation function, comprising: a stove body 1, with a tabletop 1.1 on top, and a pot mounting hole 1.2 on the tabletop 1.1 for placing cooking pots 2; an annular heat exchange sleeve 3, which is a hollow annular structure, fixedly installed inside the stove body 1, and its position corresponds to the pot mounting hole 1.2, the inner ring surface of the annular heat exchange sleeve 3 being an arc-shaped heat-conducting surface adapted to the outer contour of the cooking pot 2; a water storage container 4, located outside the stove body 1, with its maximum water level higher than the top of the annular heat exchange sleeve 3; and a first pipe 5 connecting the annular heat exchange sleeve 3 and the water storage container 4, forming a connected loop that relies on the water temperature difference to achieve natural convection. Through the annular heat exchange sleeve 3 installed inside the stove body 1 and the external water storage container 4, and connected by the first pipe 5, a natural convection loop driven by the water temperature difference is formed. When the cooking pot 2 is heated, its heat is transferred to the water in the annular heat exchanger 3 through the arc-shaped heat-conducting surface. The hot water, being less dense, rises and flows into the higher-positioned water storage container 4 via the first pipe 5. Simultaneously, the cooler water in the storage container 4, being more dense, sinks and replenishes the annular heat exchanger 3 through the first pipe 5, thus forming a continuous and stable natural convection circulation. This process does not require an external power source such as a circulation pump to continuously transfer the waste heat of the pot 2 to the water storage container 4 for heat preservation or preheating. This embodiment achieves the recovery of cooking waste heat, which on the one hand continuously heats the water in the storage container 4 for later use, and on the other hand provides a gentle heat to the cooking pot 2 after cooking, achieving the purpose of energy saving.

[0022] In the embodiments, such as Figure 2-3As shown, at least two pot mounting holes 1.2 are provided on the countertop 1.1. Each pot mounting hole 1.2 is equipped with an annular heat exchange sleeve 3 below it, and the annular heat exchange sleeves 3 are interconnected through a second pipe 8. Multiple cooking pots 2 can be connected to this waste heat utilization system simultaneously, improving the efficiency and scale of heat recovery. This structure can integrate the waste heat from multiple burners to heat the water in the water storage container 4, resulting in faster water temperature rise and more heat, making it particularly suitable for commercial kitchen scenarios with continuous operation.

[0023] In the embodiments, such as Figure 1 , Figure 4 As shown, it also includes a support frame 6, which is detachably mounted above the opening of the water storage container 4. The support frame 6 supports the serving dish 7, ensuring that the bottom of the serving dish 7 is submerged below the liquid level in the water storage container 4. The hot water in the circulating water storage container 4 can serve as a constant-temperature heat source to heat the serving dish 7 placed on the support frame 6. This allows the stove to efficiently defrost or preheat the food in the serving dish 7 while cooking, integrating pre-cooking preparation with the main cooking process and improving the efficiency of kitchen operations.

[0024] In the embodiments, such as Figure 4 As shown, the serving bowl 7 is a rectangular stainless steel bowl with a flared edge, and the supporting frame 6 is also a stainless steel frame structure. The serving bowl 7 rests on the supporting frame 6. The flared edge of the serving bowl 7 ensures its stability on the supporting frame 6, preventing it from slipping or tipping over. The use of stainless steel guarantees that the serving bowl 7 and the supporting frame 6 are corrosion-resistant and hygienic in the humid kitchen environment, are easy to clean and maintain, and meet the durability and hygiene requirements of commercial kitchens.

[0025] In the embodiments, such as Figure 1 , Figure 4 As shown, one end of the support frame 6 is connected to the positioning support 1.3 set on the main body of the stove 1 via a pivot. The pivot structure provides stable positioning, ensuring that the support frame 6 can be firmly held above the opening of the water storage container 4 under normal use.

[0026] In the embodiments, such as Figure 1 , Figure 4 As shown, the bottom of the water storage container 4 is connected to a drain pipe 4.1, and a drain valve is installed on the drain pipe 4.1. When it is necessary to change the water in the water storage container 4 or when the stove is not used for a long time, the drain valve can be opened to quickly drain the water through the drain pipe 4.1, ensuring the cleanliness of the system and preventing the water from growing bacteria or producing scale due to long-term stagnation. Maintenance is simple and quick.

[0027] Obviously, the above embodiments of this utility model are merely examples for illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Other obvious variations or modifications derived from the essential spirit of the present utility model still fall within the protection scope of the present utility model.

Claims

1. A stove with heat preservation function, characterized in that, include: The main body of the stove (1) has a tabletop (1.1) on its top, and the tabletop (1.1) has pot mounting holes (1.2) for placing cooking pots (2). The annular heat exchange sleeve (3) is a hollow ring structure, which is fixedly installed inside the main body of the stove (1) and its position corresponds to the pot mounting hole (1.2). The inner ring surface of the annular heat exchange sleeve (3) is an arc-shaped heat-conducting surface that matches the outer wall contour of the cooking pot (2). A water storage container (4) is installed outside the main body of the stove (1), and its maximum water level is higher than the top of the annular heat exchange jacket (3); The first pipeline (5) connects the annular heat exchange jacket (3) to the water storage container (4) to form a connected loop that relies on the water temperature difference to achieve natural convection.

2. The stove with heat preservation function according to claim 1, characterized in that, At least two cookware mounting holes (1.2) are provided on the tabletop (1.1), and an annular heat exchange sleeve (3) is provided below each cookware mounting hole (1.2), and each annular heat exchange sleeve (3) is interconnected through a second pipeline (8).

3. The stove with heat preservation function according to claim 1 or 2, characterized in that, It also includes a support frame (6), which is detachably disposed above the opening of the water storage container (4); the support frame (6) is used to support the vegetable basin (7) and to submerge the bottom of the vegetable basin (7) below the liquid level in the water storage container (4).

4. The stove with heat preservation function according to claim 3, characterized in that, The vegetable basin (7) is a stainless steel rectangular basin with a flange, and the supporting frame (6) is a stainless steel frame structure. The vegetable basin (7) is placed on the supporting frame (6).

5. The stove with heat preservation function according to claim 3, characterized in that, One end of the load-bearing frame (6) is positioned and connected to the positioning support (1.3) set on the main body of the stove (1) via a pivot.

6. The stove with heat preservation function according to claim 1, characterized in that, The bottom of the water storage container (4) is connected to a drain pipe (4.1), and a drain valve is provided on the drain pipe (4.1).

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