A spiral casing auxiliary heating device for integrated stove

Abstract

A volute auxiliary heating device for an integrated stove includes a gas heat module, a fan box, a volute, a conversion device, a motor heat module, an oil return module, and an air outlet module; the gas heat module includes a heat collection device and a heat pipe; the fan box is a rectangular box; the volute is located inside the fan box, and a plurality of heating pipes are arranged on its upper and lower walls and annular wall surfaces; the connecting device is located at the volute tongue; the motor heat module is located inside the volute, including: a motor, a heat absorption device, and a motor heat pipe; the oil return module is located at the volute air outlet, and is composed of an oil collecting tank and an oil outlet pipe, and the oil collecting tank is in a multi-variant structure and is located below the port of the heating pipe in the volute; the oil return module is connected to an oil return pipe at its bottom surface; the air outlet module is located at the volute air outlet, and includes an air outlet cover and an air outlet pipe. The present invention can reduce the accumulation of grease in the volute and realize the utilization of waste heat.

Description

Technical Field

[0001] The present invention belongs to the field of integrated stoves, and in particular relates to a volute auxiliary heating device for an integrated stove. Background Art

[0002] As a common kitchen appliance, integrated stoves have played an important role in people's lives; and the degree of grease accumulation in the integrated stove volute is an important indicator to measure the integrated stove

[0003] At present, traditional integrated stoves are prone to grease accumulation during use. Long-term grease accumulation can easily lead to blockage of the smoke exhaust pipe, which can easily cause fire in severe cases. The traditional grease cleaning process usually involves disassembling the volute for cleaning. This disassembly method not only requires the mastery of corresponding professional skills, but also has a high cleaning frequency and high cleaning cost. Currently, using heat to melt the grease in the volute has become one of the current popular trends;

[0004] Traditionally, heat is used to melt the grease accumulated in the volute. Usually, an electric heater is installed in the volute. Although this method can use the heat generated to melt the accumulated oil, it is easy to waste energy during use, and the heat is usually concentrated on the volute tongue and the ring wall. The traditional integrated stove usually has a built-in motor, the gap is small, and the inlet usually adopts a square edge process, which makes it easy for the upper and lower plates to accumulate oil. Therefore, it is urgent to invent a new auxiliary heating device to enable the volute to melt the oil efficiently. Summary of the invention

[0005] In order to overcome the shortcomings of traditional integrated stoves that are prone to oil accumulation and difficult to clean, the present invention provides a volute auxiliary heating device for an integrated stove, which reduces grease accumulation in the integrated stove based on heat conduction and the first law of thermodynamics.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A volute auxiliary heating device for an integrated stove, comprising a gas heat module, a fan box, a volute, a conversion device, a motor heat module, an oil return module and an air outlet module;

[0008] The gas heat module comprises a heat collection device and a gas heat pipe; the heat collection device is located inside the gas heat module, the back side of the heat collection device is connected to the gas heat pipe, and the other end of the gas heat pipe is connected to the conversion device;

[0009] The fan box is located below the gas heat module, the interior of the box is hollow, an oil tank is installed on the bottom surface of the fan box, and the annular surface and the bottom surface of the oil tank are closed structures;

[0010] The volute is located inside the fan box, and the front and rear plate surfaces and the annular wall surface of the volute are arranged with heating pipes; the annular wall side heating pipe, when observed from the direction perpendicular to the volute, has a shape consistent with the volute profile, a semicircular cross-section, and a rectangular bottom surface placed close to the outer wall surface of the volute, and the heating pipe is fixed to the surface of the volute through a buckle plate; the upper and lower plate surface heating pipes are placed on the front and rear plates of the volute, one end of the heating pipe is connected to the swivel device, and the other end of the heating pipe is connected to the oil return device;

[0011] The conversion device is located at the volute tongue, the curvature of the wall contour line is consistent with the curvature of the outer wall contour line of the volute tongue, and the thickness is consistent with the thickness of the volute. The inlet B surface of the conversion device is connected to the gas heat pipe located in the gas heat module, the motor heat pipe of the motor heat module and the ring wall surface heating pipe, and the outlet A and C surfaces of the conversion device are respectively connected to the heating pipes of the front plate and the rear plate of the volute;

[0012] The motor heat module is located inside the volute, and includes a motor, a heat absorption device and a motor heat pipe; the motor heat module is fixed to the rear of the fan box through a motor bracket, and the heat absorption device is placed on the motor bracket and close to the bottom surface of the motor; the motor heat pipe is connected from the side end of the heat absorption device and is connected to the conversion device;

[0013] The oil return module is located at the air outlet of the volute, and includes an oil collecting tank and an oil outlet pipe. The oil collecting tank is located below the port of the heating pipe on the side wall of the volute. An oil return pipe is connected to the bottom of the oil collecting tank, and the oil return pipe leads to the oil return tank in the fan box.

[0014] The air outlet module is located at the air outlet of the volute.

[0015] Furthermore, the heating pipe is a semicircular pipe with a radius R of 20 mm and a bottom surface of a rectangular surface, and the rectangular bottom surface is in close contact with the surface of the volute.

[0016] Furthermore, the oil return module is located at the bottom end of the volute, and the melted grease formed on the side wall of the volute ring will flow into the oil tank and flow into the oil tank from the hose to achieve oil recovery.

[0017] The heat collection device is a rectangular device located in the middle of the two stoves; the heat pipe is a circular pipe with a heat transfer medium flowing inside.

[0018] The fan box is a rectangular box, and the oil collecting tank is a rectangular box.

[0019] The heat absorption device is in the shape of a cuboid, and the motor heat pipe is a round pipe.

[0020] The oil collecting tank is in the shape of a polygonal structure, the area of ​​the upper surface is larger than the area of ​​the lower surface, and an inclined wall is arranged on the ring side to facilitate the flow of oil droplets inside and reduce accumulation; the oil return pipe is a flexible hose.

[0021] The air outlet module comprises an air outlet cover and an air outlet pipe, the air outlet of the volute is connected to the air outlet cover, and the air outlet cover is connected to the air outlet pipe.

[0022] The beneficial effects of the present invention are as follows: (1) the waste heat generated by gas combustion is reused; (2) the grease in the volute is melted by the waste heat to reduce grease accumulation; (3) the heating pipe is located on the upper and lower walls and the annular wall of the volute, and the heating surface is wider; (4) an oil return device is provided at the lower port to reduce the amount of waste oil entering the air outlet duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall installation of the present invention.

[0024] Figure 2 It is a schematic diagram of the functional modules of the present invention.

[0025] Figure 3 It is a schematic diagram of gas heat recovery of the present invention.

[0026] Figure 4 This is a schematic diagram of the distribution of heating tubes on the volute surface.

[0027] Figure 5 yes Figure 4 A partial enlarged view of part P.

[0028] Figure 6 This is a schematic diagram of the connection between heat pipes and heating pipes

[0029] Figure 7 This is an oil return diagram.

[0030] Figure 8 This is a schematic diagram of motor heat recovery.

[0031] Fig. 9 It is a schematic diagram of the oil return device. DETAILED DESCRIPTION

[0032] The present application is further described below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific implementation cases described herein are only used to explain the present invention rather than to limit the invention. It should also be noted that for ease of description, only the parts related to the present invention are shown in the accompanying drawings.

[0033] It should be noted that, in the absence of conflict, the features in the implementation cases and embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] Reference Figures 1 to 9 , a volute auxiliary heating device for an integrated stove, comprising a gas heating module (1), a fan box (2), a volute (3), a conversion device (4), a motor heating module (5), an oil return module (6) and an air outlet module (7);

[0035] The gas heat module (1) comprises a heat collection device (11) and a gas heat pipe (12); the heat collection device (11) is a rectangular parallelepiped device, which is located inside the gas heat module (1), specifically in the middle of two stoves; the back of the heat collection device (11) is connected to the gas heat pipe (12); the gas heat pipe (12) is a circular tube, inside which a heat transfer medium flows, and the other end of which is connected to the conversion device (4);

[0036] The fan box (2) is a rectangular box, which is specifically located below the gas heat module (4). The box is hollow inside. An oil tank (21) is installed on the bottom surface (22) of the fan box (2). The oil tank (21) is a rectangular box, and the annular surface of the oil tank (21) is closed to the bottom surface.

[0037] The volute (3) is located inside the fan box (2); the front and rear plates of the volute (3) are respectively provided with heating tubes 31b and 31c; a plurality of heating tubes 31a are arranged on the annular wall surface; when the heating tube (31a) is observed from a direction perpendicular to the volute, its shape is consistent with the current state of the volute profile, its cross section is semicircular, and its rectangular bottom surface is placed close to the outer wall surface of the volute; the heating tube 31a is fixed to the surface of the volute through a buckle plate (32); one end of the heating tube (31a) is connected to the conversion device (4), and the other end of the heating tube (31a) is connected to the oil return device (6);

[0038] The conversion device (4) is located at the volute tongue of the volute (3), and the curvature of the contour line of its wall surface is consistent with the curvature of the contour line of the outer wall surface of the volute tongue, and its thickness is consistent with the thickness of the volute. The inlet B surface of the conversion device (4) is connected to the gas heat pipe (12) located in the gas heat module (1), the motor heat pipe (52) of the motor heat module (5), and the heating pipe 31a of the ring wall surface of the volute (3). The outlet A of the conversion device (4) is connected to the heating pipe (31b) on the front plate of the volute (3), and the outlet C of the conversion device (4) is connected to the heating pipe (31c) on the rear plate.

[0039] The motor heat module (5) is located inside the volute (3), and specifically comprises a motor (1), a heat absorption device (51) and a motor heat pipe (52); the motor heat module (5) is fixed as a whole to the rear back side (22) of the fan box through a motor bracket (53); the motor absorption device is in the shape of a rectangular parallelepiped, and is specifically arranged on the motor bracket (51) and is arranged close to the bottom surface of the motor (54); the motor heat pipe (52) is a round tube, and specifically extends out from the side end of the heat absorption device (51) and is connected to the connecting device (4);

[0040] The oil return module (6) is located at the air outlet of the volute and includes an oil collecting tank (61) and an oil outlet pipe (62). The shape of the oil collecting tank (61) is a multi-variable structure. It is specifically located below the port of the heating pipe (31a) in the volute (3). Its top surface area is larger than its top surface area. An inclined wall surface 61b is provided on the ring side to facilitate the flow of oil droplets inside and reduce accumulation. The bottom surface (61a) is connected to an oil return pipe (62). The oil return pipe is a flexible hose and specifically leads to the oil return tank (21) in the fan box.

[0041] The air outlet module is located at the air outlet of the volute, and comprises an air outlet cover (71) and an air outlet pipe (72); the air outlet of the volute is connected to the air outlet cover (71), and the air outlet cover (71) is connected to the air outlet pipe (72).

[0042] The waste heat utilization and transfer process of the present invention is as follows:

[0043] (1) The waste heat generated by the gas module (1) is absorbed by the heat absorption device (11) and is transferred out of the gas module through the heat pipe (12);

[0044] (2) The heat generated by the rotation of the motor thermal module (5) is absorbed by the heat absorption device (51) arranged on the back thereof and transported out of the motor thermal module (5) through the heat pipe (52);

[0045] (3) The conversion device (4) collects the heat transferred by the heat pipe (12) and the motor module heat pipe (51), and transfers the heat to the heat pipes 31a, 31b, 31c, so that the heat pipes are heated and the grease accumulated on the wall of the volute is melted to prevent the grease from accumulating inside the volute;

[0046] The heating pipe of the present invention is a semicircular pipe with a radius R of 20 mm. Its bottom surface is a rectangular surface, the rectangular bottom surface is in close contact with the inner wall surface of the volute (3), and its outer wall surface is a semicircular arc surface. According to the Coanda effect, the oil droplets will flow out of the volute (3) along the wall surface of the heating pipe;

[0047] The oil return module of the present invention is located at the bottom end of the volute, and the melted grease formed on the side wall of the volute ring flows into the oil collecting groove (61) and flows into the oil tank (21) from the hose (62), thereby realizing oil recovery.

Claims

1. A spiral casing auxiliary heating device for an integrated stove, characterized in that: The volute auxiliary heating device includes a gas heat module, a fan box, a volute, a conversion device, a motor heat module, an oil return module and an air outlet module; The gas heat module comprises a heat collection device and a gas heat pipe; the heat collection device is located inside the gas heat module, the back side of the heat collection device is connected to the gas heat pipe, and the other end of the gas heat pipe is connected to the conversion device; The fan box is located below the gas heat module, the interior of the box is hollow, an oil tank is installed on the bottom surface of the fan box, and the annular surface and the bottom surface of the oil tank are closed structures; The volute is located inside the fan box, and the front and rear panels and the side of the ring wall of the volute are arranged with heating pipes; the shape of the heating pipe on the side of the ring wall is consistent with the shape of the volute profile when observed from the direction perpendicular to the volute, and its cross-section is semicircular, and the rectangular bottom surface is placed close to the outer wall of the volute, and the heating pipe is fixed to the surface of the volute through a buckle plate; the upper and lower panel heating pipes are placed on the front and rear panels of the volute, one end of the heating pipe is connected to the swivel device, and the other end of the heating pipe is connected to the oil return device; The conversion device is located at the volute tongue, the curvature of the wall contour line is consistent with the curvature of the outer wall contour line of the volute tongue, and the thickness is consistent with the thickness of the volute. The inlet B surface of the conversion device is connected to the gas heat pipe located in the gas heat module, the motor heat pipe of the motor heat module and the heating pipe on the side of the ring wall. The outlet A and C surfaces of the conversion device are respectively connected to the heating pipes of the front plate and the rear plate of the volute; The motor heat module is located inside the volute, and includes a motor, a heat absorption device and a motor heat pipe; the motor heat module is fixed to the rear of the fan box through a motor bracket, and the heat absorption device is placed on the motor bracket and close to the bottom surface of the motor; the motor heat pipe is connected from the side end of the heat absorption device and is connected to the conversion device; The oil return module is located at the air outlet of the volute, and includes an oil collecting tank and an oil outlet pipe. The oil collecting tank is located below the port of the heating pipe on the side of the volute ring wall. An oil return pipe is connected to the bottom of the oil collecting tank, and the oil return pipe leads to the oil return tank in the fan box. The air outlet module is located at the air outlet of the volute; The oil return module is located at the bottom end of the volute, and the melted grease formed on the side wall of the volute ring will flow into the oil tank and flow into the oil tank from the hose to realize oil recovery; The air outlet module comprises an air outlet cover and an air outlet pipe, the air outlet of the volute is connected to the air outlet cover, and the air outlet cover is connected to the air outlet pipe.

2. The volute auxiliary heating device for an integrated stove according to claim 1, characterized in that: The heating pipe is a semicircular pipe with a radius R of 20 mm and a bottom surface of a rectangular surface, and the rectangular bottom surface is in close contact with the surface of the volute.

3. A spiral casing auxiliary heating device for an integrated stove as claimed in claim 1 or 2, characterized in that: The heat collection device is a rectangular device located in the middle of the two stoves; the heat pipe is a circular pipe with a heat transfer medium flowing inside.

4. A spiral casing auxiliary heating device for an integrated stove as claimed in claim 1 or 2, characterized in that: The fan box is a rectangular box, and the oil tank is a rectangular box.

5. A spiral casing auxiliary heating device for an integrated stove as claimed in claim 1 or 2, characterized in that: The heat absorption device is in the shape of a cuboid, and the motor heat pipe is a round pipe.

6. A spiral casing auxiliary heating device for an integrated stove as claimed in claim 1 or 2, characterized in that: The oil collecting tank is in the shape of a polygonal structure, the area of ​​the upper surface is larger than the area of ​​the lower surface, and an inclined wall is arranged on the ring side; the oil return pipe is a flexible hose.

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