CN103948307B - Smoke exhaust system of water pot of fuel gas steam box - Google Patents

Abstract

The invention discloses a water tank of a gas steamer, which comprises a connected flat heat exchanger, a flue and a water tank body. For heat exchange, the back end of the flue is connected to the branch flue. The branch flue is bow-shaped and separated into several layers. It is located above the flat plate heat exchanger. Through, there is a space for water injection at the bend of the branch flue on each layer, and there is a water injection space between the branch flues, between the branch flue and the water tank, and between the flue and the water tank. There is a water injection space between the surface of the type heat exchanger and the branch flue. There is a zigzag deflection plate in the branch flue. The upper part of the tank body has a steam discharge hole, and the lower part has a burner installation hole. There are smoke outlets of the cabinet, water supply holes and steam return holes, and the smoke outlets of the cabinet are connected with the smoke outlets of the branch flue. The invention has the characteristics of high efficiency, energy saving, safety and ease of use.

Description

A smoke exhaust system using a gas steamer tank

technical field

The invention relates to the field of gas stoves, in particular to a smoke exhaust system using a water tank of a gas steamer.

Background technique

Gas steamers, steam cabinets and other equipment are widely used in canteens, restaurants and other places. They have high power and high frequency of use, and are equipment with high energy consumption in the kitchen. Therefore, the need for an energy-saving, environmentally friendly and safe gas steamer has become an urgent expectation of the catering industry.

To determine whether the gas steamer is efficient, energy-saving and safe, the water tank and smoke exhaust system are one of the key technologies. At present, the general gas steamer water liner and smoke exhaust system use direct heating or heat the water liner through exhaust pipes, and those that use exhaust pipe heat exchange mostly adopt single-winding exhaust pipe heat exchange structure, and its thermal efficiency is not ideal.

Contents of the invention

The object of the present invention is to provide a high-efficiency, energy-saving, safe and easy-to-use smoke exhaust system using a water tank of a gas steamer.

The technical solution adopted by the present invention to solve its technical problems is:

The water bladder of the gas steamer is composed of a flat heat exchanger, a flue and a box body, and all parts are made of stainless steel. The flat plate heat exchanger is composed of two flat plates in a hollow shape, with holes at the bottom and a burner can be installed, and the upper and lower sides can exchange heat with the flame. Part of the heat generated by the burner is consumed by the plate heat exchanger, and the other part enters the flue along with the flue gas. The flue is connected with the flat heat exchanger, and the rear end of the flue is connected with branch flues with rectangular cross-sections on both sides. The branch flue is bow-shaped and curved, separated into several layers up and down. There is a space for water injection at the bend of the branch flue in each layer. The channel is located above the plate heat exchanger, and there is a space for water injection adjacent to it. There is a water injection space between the surface of the flat plate heat exchanger and the branch flue. There is a zigzag deflection plate inside the branch flue. The residence time in the channel improves the heat exchange efficiency; preferably, the cross-sectional area, width and thickness of each branch flue are equal, and the material of the plate heat exchanger is thicker than that of the flue.

The front section of the tail flue of the water supply tank is connected to the rear end of the flue of the branch road of the water tank, and the rear end is connected to the exhaust fan, and the automatic water replenishment float in the tank is connected to the water supply source. The tail flue of the water tank and the exhaust fan constitute a complete smoke exhaust system. Its technical features are: the normal temperature water in the water supply tank exchanges heat with the flue gas in the tail flue, effectively utilizes the waste heat of the tail smoke, reduces the temperature of the exhausted flue gas, and improves the thermal efficiency of the gas steamer.

The beneficial effects of the invention are: by increasing the area of heat exchange between the water tank and the smoke exhaust system, the time for flue gas to flow in the flue is prolonged, thereby greatly improving the thermal efficiency of the gas steamer and achieving the purpose of energy saving.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic diagram of the structure of a gas steamer;

Fig. 2 is a schematic diagram of the structure on the right side of the tank body;

Fig. 3 is a schematic diagram of the connection structure between the flue, the water supply tank and the exhaust fan;

Fig. 4 is a schematic diagram of the position of the branch flue in the box;

Fig. 5 is a schematic diagram of the branch flue structure;

Figure 6 is a schematic diagram of the structure of the deflector;

Fig. 7 is a schematic diagram of a plate heat exchanger and a box;

Fig. 8 is a schematic diagram of the internal structure of the replenishing water tank.

detailed description

Accompanying drawing 1, Fig. 2, a kind of smoke exhaust system of the tank that uses gas steam box, water tank box 3 is equipped with flat plate heat exchanger 1, flue 2 and two branch flues 21,22; The smoke outlet 26 of the branch flue 21, 22 is sealed and connected with the box smoke outlet 33 on the right side of the tank body 3; the lower end hole 11 of the plate heat exchanger 1 is sealed with the burner installation hole 31 of the box connect. The upper end of the water tank body is provided with a steam discharge hole 30, and the lower end has a burner installation hole 31 and a sewage outlet 32. The right side of the water tank body 3 is provided with a water supply hole 34 and a steam return hole 35. There is a water injection space 25 inside the tank body. The upper part is provided with a misplaced water baffle 36. There is a space 27 for water injection between the plate heat exchanger 1 and the branch flue 21, 22, and a space 28 for water injection between the branch flue 21, 22. Rely on, water supplement tank 4 is connected with blower fan 5.

Accompanying drawing 3, the exhaust port 26 of branch flue 21,22 is connected with the tail flue front port 48 of water supply tank 4 (see accompanying drawing 1); The inside of the tail flue 41 is provided with a deflection plate 46; the lower end of the water supply tank 40 is provided with a lower water supply hole 44, and the upper end is provided with a return air hole 45; The rear port 47 of the flue, the exhaust fan 5 is connected with the rear port 47 of the tail flue of the replenishment tank; The pressure is parallel with the internal pressure of the water bladder tank 3, which is conducive to normal water replenishment.

Accompanying drawing 4, the space 25 of water injection is left between branch flue 21,22 and box body 3 around and up and down.

Accompanying drawing 5, Fig. 6, there are deflectors 23 inside the branch flue 21, 22, and there is a water injection space 25 between the branch flues 21, 22 on both sides, and each branch flue is arcuate and curved, There are several layers spaced up and down, and there is a space 28 for water supply injection at the bend of the branch flue on each layer.

Accompanying drawing 7, the left side of plate type heat exchanger 1 is flue 2, and the upper end is provided with the hollow part 200 of branch flue 21,22, forms the water injection space between water tank body, the lower end hole 11 and the box body The lower port 31 of 3 is sealed and connected, and the bottom of the casing has the sewage outlet 32 that is communicated with the water tank interior water injection space, and a ball valve is installed at this sewage outlet place, is convenient to get rid of the sewage in the casing.

Accompanying drawing 8, tail flue 41 of replenishing water tank 4 (see accompanying drawing 1) is curved shape, is provided with spoiler 46 inside, and tail flue front port 48 is rectangular or circular structure, and the water source hole 43 of replenishing water tank 4 Tubular seal connection with water supply source. The inner space of the replenishment tank 4 is provided with an automatic replenishment float valve 42, and the float valve 42 is fixed in the water source hole 43 and is sealedly connected with the water source. When the water in the water tank body lacked, the water in the replenishment tank casing 40 was replenished through the lower end hole 44 and the water tank body replenishment hole 34 (seeing accompanying drawing 2).

The above are only the embodiments of the present invention, as long as the technical solutions of the present invention are realized by basically the same means, they all fall within the protection scope of the present invention.

Claims (2)

1. A smoke exhaust system for a tank using a gas steamer, characterized in that the tank is composed of a flat plate heat exchanger (1), a flue (2) and a tank body (3) made of stainless steel , the flat plate heat exchanger (1) is composed of two planar plates in a hollow shape, the bottom has a lower end hole (11) for installing a burner, the upper and lower sides can exchange heat with the flame, the flue (2) and the flat plate type heat exchanger (1), the rear end of the flue (2) is connected to the branch flue (21, 22) with a rectangular cross-section on both sides, and the branch flue (21, 22) is bow-shaped, spaced up and down There are several layers, located above the flat plate heat exchanger (1), the layers of the branch flue on both sides are connected to each other, and the end and end are connected. There is a space (28) for water injection at the bend of the branch flue on each layer, and the branch flue Between (21, 22), between the branch flue (21, 22) and the tank body (3), between the flue (2) and the tank body (3), there is a water injection space (25) , there is a water injection space (27) between the surface of the flat plate heat exchanger (1) and the branch flue, and the zigzag deflection plate (23) is arranged inside the branch flue (21, 22), and the tank body ( 3) There is a steam discharge hole (30) on the upper part, a burner installation hole (31) on the lower part, and a smoke exhaust port (33), a water supply hole (34) and a steam return hole (35) on one side of the box body. The smoke exhaust port (33) is connected with the smoke exhaust port (26) of the branch flue (21, 22); it also includes a supplementary water tank (4) utilizing the residual heat of the flue gas and an exhaust fan ( 5), the water replenishment tank (4) is composed of the water replenishment tank body (40), the tail flue (41) and the water replenishment float valve (42), and the tail flue (41) and the water replenishment float valve (42) are arranged in the water replenishment tank In the body (40), the front end of the tail flue (41) is connected to the smoke exhaust port (26) of the branch flue (21, 22) of the box exhaust port (33), and the rear of the tail flue (41) The port (47) is connected to the exhaust fan (5), the water replenishment float valve (42) is fixed to the water source hole (43), and the water holding space of the water replenishment tank (40) passes through the water replenishment hole (44) at the lower end and the water tank body. The water replenishment hole (34) is connected, and the upper end of the water replenishment tank casing (40) is provided with an air return hole (45). 2. A smoke exhaust system using a gas steamer water tank according to claim 1, characterized in that: the tail flue (41) is curved and has a built-in spoiler (46).