Efficient food steam generator

Abstract

The utility model discloses an efficient food steam generator which comprises an installation frame and a steam generator body, the steam generator body sequentially comprises a combustion chamber, a water chamber and a steam chamber from bottom to top, a smoke cap is arranged on the upper portion of the steam chamber, and heat conduction pipes with the lower portions extending into the combustion chamber and the upper portions extending into the smoke cap are evenly distributed in the water chamber at intervals. The liquid level meter is fixed on one side of the water chamber and is used for measuring the water level in the water chamber, the liquid level meter is provided with a measuring cylinder, a coaxial heat conduction rod is arranged in the heat conduction pipe, and fins with petal-shaped sections along the length direction of the heat conduction pipe are welded between the outer wall of the heat conduction rod and the inner wall of the heat conduction pipe. Smoke channels are formed in gaps of the petals; and a liquid level sensor is arranged in the measuring cylinder. The heat exchange device is good in heat exchange effect and high in heat efficiency, and an operator can know the change condition of the water level in the water chamber even if the operator is not on an operation site.

Description

Technical Field

[0001] The utility model relates to an efficient food steam generator. Background Art

[0002] The food steam generator in the prior art includes an installation frame and a steam generator installed on the installation frame. A burner is fixed at the lower part of the installation frame. The steam generator successively includes a cylindrical combustion chamber, a water chamber and a steam chamber from bottom to top. The upper part of the steam chamber is a smoke cap. An air outlet joint is installed on the upper part of the outer wall of the steam chamber. The water chamber has a water inlet and outlet joint. Heat conduction tubes which extend to the combustion chamber at the lower part and to the smoke cap at the upper part are arranged in the water chamber at equal intervals. A liquid level gauge for measuring the water level in the water chamber is also fixed on one side of the water chamber. The liquid level gauge has a measuring cylinder. The upper part of the measuring cylinder is communicated with an upper connecting pipe, and the bottom is communicated with a bottom connecting pipe. The upper connecting pipe is communicated with the upper part of the water chamber. Before use, the water inlet and outlet joint of the steam generator is connected to a water source through a water pump, and the water pump is started to add water. After the water adding is completed, the burner starts to ignite and heat. During the heating process, water continuously turns into steam and is output.

[0003] The main deficiencies of the above-mentioned food steam generator in the prior art are as follows: the heat exchange effect of the heat conduction tubes is poor; the overall heat preservation effect of the steam generator is not ideal enough; the water level change in the water chamber can only be observed through the measuring cylinder on site, which increases the labor intensity of the operating workers. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the above deficiencies and propose an efficient food steam generator with a better heat exchange effect.

[0005] To solve the above technical problems, an efficient food steam generator of the utility model includes an installation frame and a steam generator installed on the installation frame. A burner is fixed at the lower part of the installation frame. The steam generator successively includes a cylindrical combustion chamber, a water chamber and a steam chamber from bottom to top. The upper part of the steam chamber is a smoke cap. An air outlet joint is installed on the upper part of the outer wall of the steam chamber. The water chamber has a water inlet and outlet joint. Heat conduction tubes which extend to the combustion chamber at the lower part and to the smoke cap at the upper part are arranged in the water chamber at equal intervals. A liquid level gauge for measuring the water level in the water chamber is also fixed on one side of the water chamber. The liquid level gauge has a measuring cylinder. The upper part of the measuring cylinder is communicated with an upper connecting pipe, and the bottom is communicated with a bottom connecting pipe. The upper connecting pipe is communicated with the upper part of the water chamber. The characteristics are that: a coaxial heat conduction rod is arranged in the heat conduction tube, and fins with a petal-shaped cross section along the length direction of the heat conduction tube are welded between the outer wall of the heat conduction rod and the inner wall of the heat conduction tube, and a flue gas channel is formed at the gap between the petals; a liquid level sensor is arranged in the measuring cylinder.

[0006] In the high-efficiency food steam generator adopting the above structure, since a coaxial heat conduction rod is arranged in the heat conduction tube, and fins with a petal-shaped cross section along the length direction of the heat conduction tube are welded between the outer wall of the heat conduction rod and the inner wall of the heat conduction tube, a flue gas channel is formed at the gap between the petals. Therefore, the flue gas in the combustion chamber is discharged upward from the flue gas channel formed at the petal gap by the smoke cap. The contact between the flue gas and the heat conduction tube and the petal-shaped fins is more sufficient, the heat exchange area is larger, and the heat exchange effect is better. After a liquid level sensor is arranged in the measuring cylinder, the liquid level in the water chamber can realize the remote transmission function, that is, even if the operator is not at the operation site, the change of the water level in the water chamber can be understood.

[0007] As an improvement of the present invention, an annular water jacket communicating with the cylindrical water chamber is formed in the cylindrical combustion chamber. The bottom connecting pipe is communicated with the bottom of the annular water jacket, and the water inlet and outlet joint is arranged at the bottom of the annular water jacket and communicated with the bottom of the annular water jacket. After adopting the technical feature that an annular water jacket is formed in the combustion chamber, the heat in the combustion chamber can be more fully absorbed, and the heat exchange efficiency of the present invention is further improved.

[0008] Furthermore, a faucet joint is installed at the lower part of the water chamber. After adopting the above technical feature, the present invention can provide steam and hot water at the same time, increasing the functions.

[0009] Still further, heat insulation layer B is compounded on the outer walls of the cylindrical combustion chamber, water chamber and steam chamber. After adopting the above technical feature, the heat preservation effect of the present invention can be improved, and the thermal efficiency of the present invention can be improved.

[0010] Even further, heat insulation layer C is compounded on the outer wall of the smoke cap. After adopting the above technical feature, the heat preservation effect of the present invention can be further improved. Description of the Drawings

[0011] The present invention will be further described in detail below with reference to the drawings.

[0012] Figure 1 is the front view structural schematic diagram of a high-efficiency food steam generator of the present invention.

[0013] Figure 2 is Figure 1 the left view partial sectional structural schematic diagram of

[0014] Figure 3 is after removing the installation frame and the burner of Figure 1 .

[0015] Figure 4 is Figure 3 the sectional structural schematic diagram along the A-A line in

[0016] Figure 5 is a schematic cross-sectional structure view along Figure 3 the B-B line in the figure. The heat insulation layer B on the outer wall of the water chamber is not shown in the figure.

[0017] Figure 6 is a schematic cross-sectional structure view along Figure 3 the C-C line in the figure.

[0018] Figure 7 is a schematic cross-sectional structure view of the heat conduction tube in the present utility model. Specific embodiments

[0019] Referring to Figure 1 - Figure 7 , a high-efficiency food steam generator of the present utility model includes an installation frame 1 and a steam generator installed on the installation frame. A burner 2 is fixed at the lower part of the installation frame. The steam generator sequentially includes a cylindrical combustion chamber 3, a water chamber 4 and a steam chamber 5 from bottom to top. The upper part of the steam chamber is a smoke cap 6. An air outlet joint 7 is installed on the upper part of the outer wall of the steam chamber. The water chamber has a water inlet and outlet joint 8. Heat conduction tubes 9 which extend to the combustion chamber at the lower part and to the smoke cap at the upper part are arranged in the water chamber at equal intervals. A liquid level gauge 10 for measuring the water level in the water chamber is further fixed on one side of the water chamber 4. The liquid level gauge has a measuring cylinder 11. The upper part of the measuring cylinder is communicated with an upper connecting pipe 12, and the bottom is communicated with a bottom connecting pipe 13. The upper connecting pipe is communicated with the upper part of the water chamber. It is characterized in that: a coaxial heat conduction rod 91 is arranged in the heat conduction tube 9, and fins 92 with a petal-shaped cross-section along the length direction of the heat conduction tube are welded between the outer wall of the heat conduction rod and the inner wall of the heat conduction tube. A flue gas channel 93 is formed at the gap between the petals; a liquid level sensor 14 is arranged in the measuring cylinder. An annular water jacket 31 communicated with the cylindrical water chamber 4 is formed in the cylindrical combustion chamber 3. The bottom connecting pipe 13 is communicated with the bottom of the annular water jacket. The water inlet and outlet joint 8 is arranged at the bottom of the annular water jacket and is communicated with the bottom of the annular water jacket. Heat insulation layer A15 is compounded on the outer walls of the measuring cylinder 11, the upper connecting pipe 12 and the bottom connecting pipe 13. A faucet joint 16 is installed at the lower part of the water chamber 4. Heat insulation layer B17 is compounded on the outer walls of the cylindrical combustion chamber 3, the water chamber 4 and the steam chamber 5. Heat insulation layer C18 is compounded on the outer wall of the smoke cap.

[0020] It can be understood that the above specific description of the present utility model is only for explaining the present utility model and is not limited to the technical solutions described in the embodiments of the present utility model. Any modification or equivalent replacement of the present utility model to achieve the same technical effect is within the protection scope of the present utility model.

Claims

1. A high-efficiency food steam generator, comprising a mounting frame (1) and a steam generator mounted on the mounting frame, wherein a burner (2) is fixed at the lower part of the mounting frame, and the steam generator comprises a cylindrical combustion chamber (3), a water chamber (4) and a steam chamber (5) from bottom to top, wherein the upper part of the steam chamber is a smoke cap (6), and the upper part of the outer wall of the steam chamber is provided with an air outlet joint (7), the water chamber has an inlet and outlet joint (8), and the water chamber has heat conduction pipes (9) extending from the lower part to the combustion chamber and from the upper part to the smoke cap, and further comprising a liquid level gauge (10) fixed at one side of the water chamber (4) for measuring the water level in the water chamber, the liquid level gauge having a measuring tube (11), the upper part of the measuring tube being connected to an upper connecting tube (12), and the bottom part being connected to a bottom connecting tube (13), the upper connecting tube being connected to the upper part of the water chamber, and characterized in that: A coaxial heat conducting rod (91) is arranged in the heat conducting tube (9), and fins (92) having a petal-shaped cross section along the length direction of the heat conducting tube are welded between the outer wall of the heat conducting rod and the inner wall of the heat conducting tube, and a flue gas channel (93) is formed in the gap between the petals; a liquid level sensor (14) is arranged in the measuring tube.

2. The high-efficiency food steam generator according to claim 1, characterized in that: An annular water jacket (31) communicating with the cylindrical water chamber (4) is formed in the cylindrical combustion chamber (3); the bottom connecting pipe (13) is connected to the bottom of the annular water jacket; and the water inlet and outlet joint (8) is arranged at the bottom of the annular water jacket and is connected to the bottom of the annular water jacket.

3. The high-efficiency food steam generator according to claim 1, characterized in that: The outer walls of the measuring tube (11), the upper connecting tube (12) and the bottom connecting tube (13) are all compositely provided with a thermal insulation layer A (15).

4. The high-efficiency food steam generator according to claim 1, characterized in that: A faucet connector (16) is provided at the lower portion of the water chamber (4).

5. The high-efficiency food steam generator according to claim 1, characterized in that: The outer walls of the columnar combustion chamber (3), water chamber (4) and steam chamber (5) are all compositely provided with a thermal insulation layer B (17).

6. The high-efficiency food steam generator according to claim 1, characterized in that: The outer wall of the cigarette cap is compounded with a thermal insulation layer C (18).

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