Waste heat recovery type high thermal efficiency steam box

Abstract

The utility model discloses a waste heat recovery type high thermal efficiency steam box which comprises a box body, a heat exchange water tank and a steam box workbench, the heat exchange water tank is installed in the box body, and a sine wave heat exchanger is installed at the bottom of the heat exchange water tank. The lower portion of the sine wave heat exchanger is connected with a fire grate through a fire grate connecting plate fixed to the heat exchange water tank, a pulse igniter for igniting the fire grate is installed in the box body, a smoke channel is installed on the outer wall of the heat exchange water tank in a surrounding mode, and the front end of the smoke channel is communicated with the sine wave heat exchanger. A draught fan is installed at the tail end of the smoke channel through a draught fan connecting plate, a motor for providing power is installed below the draught fan, and a steam box workbench is installed on the upper portion of the heat exchange water tank. According to the waste heat recovery type high-heat-efficiency steam box, the sine wave heat exchanger is adopted, the heat exchange efficiency is improved, and water scale is convenient to clean; and a surrounding type flue gas channel is adopted, flue gas waste heat utilization is achieved, and the heat efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steam box technical field, concretely to a waste heat recovery type high heat efficiency steam box. BACKGROUND

[0002] At present, there are three kinds of heat exchange products in the market, 1. Directly burning iron pot to boil water, this kind of product, long service life, simple maintenance, but the gas consumption is the largest, very not energy saving; 2. Heat exchange device is by a plurality of stainless steel pipes parallel to each other, water is passed in the pipe, and fire is burned outside the stainless steel pipe, the heat exchange device cannot be cleaned after forming water scale, and the service life of the whole machine is short in areas with poor water quality due to the deterioration of the heat conduction performance, and the stainless steel pipe is directly burned through, which is commonly called pipe explosion; 3. Heat exchange device is by "huan" character-shaped square steel pipe joint and placed in the water tank, and the hot flue gas generated by the fan is discharged through the square pipe, the heat exchange of such heat exchange device, the service life of the whole machine is longer than the second kind, but the water tank dead angle is formed, the water scale cannot be cleaned, the flue gas is not recycled, the gas consumption is large, the energy consumption is high, and the economic benefit is low. The above-mentioned three kinds of heat exchange products do not recycle the flue gas, so the heat efficiency is low, and it is not energy saving. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a waste heat recovery type high heat efficiency steam box, solving the technical problems of large energy consumption, low heat exchange efficiency, difficult cleaning of water tank water scale and non-recycling of flue gas waste heat of traditional products.

[0004] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: including box body, heat exchange water tank and steam box workbench, the heat exchange water tank is installed in the box body, the sine wave heat exchanger is installed at the bottom of the heat exchange water tank, the fire grate is connected with the fire grate connecting plate fixed on the heat exchange water tank below the sine wave heat exchanger, the pulse igniter for igniting the fire grate is installed in the box body, the flue gas channel is installed around the outer wall of the heat exchange water tank, the flue gas channel is connected with the sine wave heat exchanger at the front end, the fan is installed at the tail end of the flue gas channel through the fan connecting plate, the motor for providing power is installed below the fan, and the steam box workbench is installed at the upper portion of the heat exchange water tank.

[0005] Further, the sine wave heat exchanger is in wave convex shape, including the heated surface facing the flame and the heating surface for boiling water.

[0006] Further, the external water adding tank is installed at the upper portion of the box body, one side of the external water adding tank is closely attached to the flue gas channel, and the external water adding tank is connected with the heat exchange water tank.

[0007] Further, the expansion joint for clamping the flue gas channel is installed on the heat exchange water tank.

[0008] Further, the edge of the steaming workbench is provided with a water collecting groove, and the water collecting groove is communicated with a overflow water tank fixed on the steaming workbench to collect overflow water.

[0009] Further, the motor is externally provided with a motor protective cover.

[0010] Further, the steaming workbench is provided with not less than one steam port, and the steam port is communicated with the heat exchange water tank.

[0011] Further, the sinusoidal wave heat exchanger and the heat exchange water tank are integrally formed or welded. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view structural schematic diagram of the utility model;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 3 It is an internal structural schematic diagram of the utility model;

[0015] Figure 4 It is an internal structural schematic diagram of the utility model without the box;

[0016] Figure 5 It is a second view internal structural diagram of the utility model;

[0017] Figure 6 It is a heat exchange water tank and sinusoidal wave heat exchanger structural schematic diagram of the utility model;

[0018] Figure 7 It is a sinusoidal wave heat exchanger structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-6The utility model provides a kind of high heat efficiency steamer of waste heat recovery type technical scheme: including box 1, heat exchange water tank 2 and steamer workstation 3, heat exchange water tank 2 is installed in box 1 inside, the bottom of heat exchange water tank 2 is equipped with sine wave heat exchanger 4, the sine wave heat exchanger 4 is connected with fire grate 6 by fire grate connecting plate 5 fixed on heat exchange water tank 2 immediately below, the fire grate 6 of this embodiment is prior art product, fire grate is prior art product, is combustion device, connects gas pipe, and sine wave heat exchanger 4 is heated by burning, the pulse igniter 17 that is the ignition of fire grate 6 is installed in box 1, smoke passage 7 is installed around on the outer wall of heat exchange water tank 2, smoke passage adopts around design, increase the length of smoke passage, improve the efficiency of waste heat utilization, reduce the temperature of exhaust tail gas, more conducive to environmental protection, the front end of smoke passage 7 and sine wave heat exchanger 4 are communicated, the heated surface of sine wave heat exchanger 4 enters smoke passage 7, fan 9 is installed in the tail end of smoke passage 7 by fan connecting plate 8, smoke passage is communicated with fan inlet, and the negative pressure generated by fan is used to discharge smoke, motor 10 providing power is installed below fan 9, steamer workstation 3 is installed on the upper portion of heat exchange water tank 2.

[0021] Sine wave heat exchanger 4 is wave convex, including heated surface 41 facing flame and heating surface 42 of boiling water, heated surface 41 directly contacts flame, and flame fills heated surface, and heating surface 42 contacts the water of water tank, directly transfers heat to water, greatly increases heat transfer area, improves heat exchange efficiency, rapidly boils the water in boiling water tank, generates steam, while dead angle is not formed, and it is convenient to clean the scale inside water tank by brush and other tools.

[0022] External water tank 11 is installed on the upper portion of box 1, one side of external water tank 11 is close to smoke passage 7, external water tank 11 and heat exchange water tank 2 are communicated, float ball valve is arranged in heat exchange water tank, external water tank is communicated with heat exchange water tank through float ball valve, convenient for water replenishment of heat exchange water tank, further improve waste heat utilization efficiency.

[0023] Expansion joint 12 for clamping smoke passage 7 is installed on heat exchange water tank 2, to prevent smoke passage from deforming and bending due to high temperature.

[0024] Water collecting groove 13 is arranged on the edge of steamer workstation 3, overflow water tank 14 for collecting waste water is fixed on steamer workstation 3 and communicated with water collecting groove 13, to facilitate the collection of water on steamer workstation.

[0025] Motor protection cover 15 is arranged outside motor 10, to play a protection role.

[0026] More than 1 steam port 16 is arranged on steamer workstation 3, and steam port 16 is communicated with heat exchange water tank 2.

[0027] The sine wave heat exchanger 4 and the heat exchange water tank 2 are integrally formed or welded, the integrally formed is pressed into one body by a die, the welded is convenient for assembling in parts, and the specific fixing mode is determined according to the specific product and requirement.

[0028] Working principle: the fire row is communicated with the gas pipe, the pulse igniter ignites the fire row, the generated flame directly aims at the heating surface of the sine wave heat exchanger, the flame fills the heating surface, the sine wave heat exchanger adopts the wave shape and has a large contact area with the water in the water tank, the heat transfer speed is increased, the water in the heat exchange water tank can be quickly boiled to generate steam, the steam is transmitted to the steaming table through the steam port, the thing is conveniently and quickly steamed, the flue gas generated by contacting the flame of the sine wave heat exchanger enters the flue gas channel communicated with the sine wave heat exchanger, the flue gas channel is closely attached to the heat exchange water tank and the external water adding tank, the waste heat can be transmitted to the heat exchange water tank and the external water adding tank, the waste heat utilization is realized, the length of the flue gas channel is increased due to the surrounding design of the flue gas channel, the waste heat utilization efficiency is improved, the temperature of the exhaust tail gas is reduced, the environment is more beneficial, the used flue gas is discharged through the fan outlet, and the machine is closed after the food is steamed.

[0029] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-heat-efficiency steamer of waste heat recovery type, comprising a box body (1), a heat exchange water tank (2) and a steamer workbench (3), characterized in that: The box (1) is internally provided with a heat exchange water tank (2), the bottom of the heat exchange water tank (2) is provided with a sine wave heat exchanger (4), the sine wave heat exchanger (4) is connected with a fire grate (6) through a fire grate connecting plate (5) fixed on the heat exchange water tank (2), the box (1) is internally provided with a pulse igniter (17) for igniting the fire grate (6), the heat exchange water tank (2) is externally provided with a smoke passage (7), the smoke passage (7) is connected with the sine wave heat exchanger (4) at the front end, the tail end of the smoke passage (7) is provided with a fan (9) through a fan connecting plate (8), the fan (9) is provided with a motor (10) below for providing power, the heat exchange water tank (2) is provided with a steaming tank workbench (3) at the upper portion.

2. The steamer of claim 1, wherein: The sine wave heat exchanger (4) is in a wave convex shape, comprising a heated surface (41) facing the flame and a heating surface (42) for boiling water.

3. The steamer of claim 1, wherein: The box (1) is provided with an external water adding tank (11) at the upper portion, one side of the external water adding tank (11) is closely attached to the smoke passage (7), the external water adding tank (11) is connected with the heat exchange water tank (2).

4. The steamer of claim 1, wherein: The heat exchange water tank (2) is provided with an expansion joint (12) for clamping the smoke passage (7).

5. The steamer of claim 1, wherein: The steaming tank workbench (3) is provided with a water collecting groove (13) at the edge, the water collecting groove (13) is connected with an overflow water tank (14) fixed on the steaming tank workbench (3) for collecting overflow water.

6. The steamer of claim 1, wherein: The motor (10) is externally provided with a motor protective cover (15).

7. The steamer of claim 1, wherein: The steaming tank workbench (3) is provided with not less than one steam port (16), the steam port (16) is connected with the heat exchange water tank (2).

8. The steamer of claim 1, wherein: The sine wave heat exchanger (4) and the heat exchange water tank (2) are integrally formed or connected by welding.

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