WO2015149649A1

WO2015149649A1 - Water pot of fuel gas steam box and smoke exhaust system

Info

Publication number: WO2015149649A1
Application number: PCT/CN2015/075122
Authority: WO
Inventors: 杨锡奇
Original assignee: 江门佳利华实业有限公司
Priority date: 2014-04-04
Filing date: 2015-03-26
Publication date: 2015-10-08
Also published as: CN103948307B; CN103948307A

Abstract

A water pot of a fuel gas steam box comprises a flat-plate heat exchanger (1), a flue (2) and a water pot box body (3) that are connected. The flat-plate heat exchanger (1) is in a hollow shape, a lower end hole (11) is formed in the bottom of the flat-plate heat exchanger (1), and the upper surface and lower surface of the flat-plate heat exchanger (1) can perform heat exchange. The back end of the flue (2) is connected to bypass flues (21, 22), and the bypass flues (21, 22) are arcuate curves; the bypass flues (21, 22) are spaced into multiple layers from top to bottom and are located above the flat-plate heat exchanger (1). The layers of the bypass flues (21, 22) at the two sides are mutually connected and are communicated end to end; a space (28) for water injection is formed in the bend of each layer of bypass flues (21, 22). Water injection spaces (25) are reserved between the bypass flues (21, 22), between the bypass flues (21, 22) and the water pot box body (3), and between the flue (2) and the water pot box body (3), and water injection spaces (27) exist between the surface of the flat-plate heat exchanger (1) and the bypass flues (21, 22). Zigzag flexible flow boards (23) are disposed in the bypass flues (21, 22). A steam exhaust hole (30) is formed in the upper part of the water pot box body (3), a burner mounting hole (31) is formed in the lower part of the water pot box body (3), and a box body smoke outlet (33), a water filling hole (34) and a steam return hole (35) are formed in one side end of the water pot box body (3). The box body smoke outlet (33) is connected to smoke outlets (26) of the bypass flues (21, 22). The water pot of the fuel gas steam box has the characteristics of high efficiency, saving energy, high safety, convenience in use and the like.

Description

Water bladder and smoke exhaust system of gas steamer

Technical field

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

Background technique

Gas steamers, steamers and other equipment are widely used in canteens, restaurants and other places. They have high power and high frequency of use, and are high-energy equipment in the kitchen. Therefore, it is necessary to have an energy-saving, environmentally-friendly and safe gas steamer, which has become an expectation of the catering industry.

It is decided that the gas steamer is energy efficient and safe, and the water bladder and smoke exhaust system is one of the key technologies. At present, the general gas steamer water tank and the smoke exhaust system adopt direct heating or heat the water bladder through the exhaust pipe, and the single-window heat pipe is adopted for the heat exchange of the pipe, and the thermal efficiency is not ideal.

Summary of the invention

The object of the present invention is to provide a water bladder and a smoke exhaust system for a gas steamer which is energy efficient, safe and easy to use.

The technical solution adopted by the present invention to solve the technical problem thereof is:

The water bladder of the gas steamer consists of a plate heat exchanger, a flue and a tank, and each part is made of stainless steel. The flat heat exchanger consists of two flat plates, which are hollow, with a bottom opening and a burner, and the upper and lower sides can exchange heat with the flame. The heat generated by the burner is partially consumed by the plate heat exchanger and the other part enters the flue with the flue gas. The flue is connected to a plate heat exchanger, and the rear end of the flue is connected to a branch flue having a rectangular cross section on both sides. The branch flue is arch-shaped and curved, and is divided into several layers. The flue of each branch is filled with water source. The flue layers of the two branches are connected to each other, and the first and last ends are connected. The road is located above the flat heat exchanger, leaving room for water injection adjacent to it. There is a water injection space between the surface of the flat heat exchanger and the branch flue, and the zigzag flexible flow plate is provided in the branch flue. The function of the flute gas is to allow the flue gas to flow in the flue and prolong the flue gas in the 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 flat heat exchanger material is thicker than the flue material.

The tank of the water bladder is a water container, a steam discharge hole at the upper end, a burner installation hole at the lower end, and a drain hole further, and a tank exhaust port, a water filling hole and a steam return hole on the right side. A flat heat exchanger and a flue are installed in the box, and a water blocking plate is arranged on the upper part, and the water blocking plate is arranged at a wrong position to prevent the upwardly throwing water droplets from being ejected from the steam discharge hole when the water boils.

The gas steamer water bladder is characterized in that the heat exchange area is large, the flue is long, the flue gas flows in the flue, and the heat energy utilization rate is high; the volume is small, the water capacity is small, the steam is fast, and the steam is large. The temperature is high and the work efficiency is further improved.

The exhaust system of the gas steamer is composed of a water supply tank and a suction fan that utilize waste heat of the flue gas. The water supply tank is composed of a box body, a tail flue and an automatic water replenishing float. The raw materials are all stainless steel. The tank of the water supply tank is a water container, the tail flue and the automatic water replenishing float are placed in the box body, and a flexible flow board is arranged in the tail flue.

The front part of the tail flue of the water supply tank is connected with the rear end of the water bladder branch flue, and the rear end is connected with the exhaust fan, and the automatic water-filling float ball in the tank body is connected to the water supply source. The tail flue and exhaust fan of the make-up tank form a complete exhaust system. The technical feature is that 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 exhaust gas, and improves the thermal efficiency of the gas steamer.

The invention has the beneficial effects that the heat exchange area of the water bladder and the smoke exhausting system is increased, and the circulation time of the flue gas in the flue is prolonged, thereby greatly improving the thermal efficiency of the gas steamer and achieving the purpose of energy saving.

DRAWINGS

The invention will now be further described with reference to the drawings and embodiments.

Figure 1 is a schematic view showing the structure of a gas steamer;

Figure 2 is a schematic view of the right side of the water tank body;

Figure 3 is a schematic view showing the connection structure of the flue, the water supply tank and the exhaust fan;

Figure 4 is a schematic view showing the position of the branch flue in the box;

Figure 5 is a schematic view of the structure of the branch flue;

Figure 6 is a schematic structural view of a flexible flow plate;

Figure 7 is a schematic view of a plate heat exchanger and a box body;

Figure 8 is a schematic view showing the internal structure of the water supply tank.

detailed description

1 and 2, a water bladder of a gas steamer, in which a flat heat exchanger 1, a flue 2 and two branch flues 21, 22 are placed; a branch flue 21 The exhaust port 26 of the 22 is sealingly connected to the box exhaust port 33 on the right side of the water tank case 3; the lower end hole 11 of the plate heat exchanger 1 is sealingly connected to the burner mounting hole 31 of the case. The upper end of the water tank body is provided with a steam discharge hole 30, the lower end has a burner mounting hole 31 and a sewage outlet 32, and the right side of the water tank body 3 is provided with a water filling hole 34 and a steam return hole 35, and the tank body has a water injection space 25 therein. A misaligned water blocking plate 36 is provided on the upper portion. There is a water injection space 27 between the flat heat exchanger 1 and the branch flue 21, 22. There is a water injection space 28 between the branch flue 21, 22, and the water supply tank 4 is perpendicular to the right side of the water tank 3 The water supply tank 4 is connected to the suction fan 5.

3, the exhaust port 26 of the branch flue 21, 22 is connected to the tail flue front port 48 of the water supply tank 4 (see FIG. 1); the tank 40 of the replenishing tank 4 is provided with a tail flue 41. The tail flue 41 is provided with a deflector 46; the lower end of the replenishing tank 40 is provided with a lower end water filling hole 44, and the upper end is provided with a return air hole 45; the water replenishing tank 40 is provided with a water source hole 43, and the right side is provided with a tail After the flue port 47, the exhaust fan 5 is connected with the rear tank flue port 47 of the water tank; the air return hole 45 of the water tank is tubularly sealed with the steam return hole 35 of the water tank body 3, and its function is: ensuring the inside of the water tank 4 The pressure is parallel to the pressure in the water tank 3, which is good for normal hydration.

In Fig. 4, a space 25 for water injection is left between the branch flue 21, 22 and the periphery of the casing 3 and between the upper and lower sides.

5 and FIG. 6, the branch flue 21, 22 is provided with a deflector 23, and a water injection space 25 is left between the two branch flue pipes 21, 22, and each branch flue is arcuately curved. The upper and lower intervals are divided into several layers, and each branch branch has a curved space where the water source is injected.

Figure 7, the left side of the plate heat exchanger 1 is the flue 2, the upper end is provided with a hollow portion 200 of the branch flue 21, 22, forming a water injection space with the water tank, the lower end hole 11 and the box The lower port 31 of the 3 is sealed and connected, and the bottom of the box body has a sewage outlet 32 communicating with the water injection space inside the water tank body, and a ball valve is installed at the sewage outlet to facilitate the sewage in the tank.

8 , the tail flue 41 of the water supply tank 4 (see FIG. 1 ) is curved, and a spoiler 46 is disposed therein. The tail flue front port 48 has a rectangular or circular structure, and the water source hole 43 of the water supply tank 4 . It is connected to the water supply source in a tubular seal. An automatic water supply float valve 42 is disposed in the space inside the water supply tank 4, and the float valve 42 is fixed to the water source hole 43 and is sealingly connected to the water source. When the water in the water tank body is absent, the water in the water tank tank 40 is replenished through the lower end hole 44 and the water tank body water filling hole 34 (see Fig. 2).

The above is only the embodiment of the present invention, and it is within the scope of the present invention to implement the technical solutions of the present invention by substantially the same means.

Claims

a water bladder of a gas steamer, characterized in that the water bladder is made of stainless steel The plate heat exchanger (1), the flue (2) and the water tank body (3) are composed of two flat plates, and the bottom is provided with a mountable burner. The lower end hole (11), the upper and lower sides can exchange heat with the flame, the flue (2) is connected with the flat heat exchanger (1), the rear end of the flue (2) and the branch flue having a rectangular cross section on both sides ( 21, 22) connection, the branch flue (21, 22) is bow-shaped curved shape, which is divided into several layers above and below, located above the flat heat exchanger (1), and the flue layers of the two side branches are connected to each other, first and last Through, there is space for water source injection in each bend of the branch flue (28), between branch flue (21, 22), between branch flue (21, 22) and water tank (3) There is a water injection space (25) between the flue (2) and the water tank (3), and there is a water injection space (27) between the surface of the flat heat exchanger (1) and the branch flue, and the branch smoke The channel (21, 22) is provided with a zigzag flow plate (23), the upper part of the water tank body (3) has a steam discharge hole (30), and the lower part has a burner mounting hole (31), one side There cabinet exhaust port (33), water (34) and a return vapor hole (35), the tank exhaust port (33) and the bypass flue (21, 22) of the exhaust port (26).
The water bladder of a gas steamer according to claim 1, wherein the upper part of the water tank body (3) is provided with a water blocking plate (36), and the water blocking plate (36) is arranged at a wrong position. The upwardly throwing water droplets are prevented from being ejected from the steam discharge holes (30) when the water is prevented from boiling.
The water bladder of a gas steamer according to claim 1, characterized in that the cross-sectional area, the width and the thickness of each branch flue (21, 22) are equal, and the material thickness of the flat heat exchanger (1) The material thickness of the branch road flue (21, 22) is thicker.
A water bladder for a gas steamer according to claim 1, wherein: The bottom of the water tank body has a sewage outlet (32) communicating with the water injection space inside the water tank body.
A smoke exhausting system using the gas steamer according to any one of claims 1 to 4, characterized in that it comprises a water supply tank (4) utilizing waste heat of flue gas and an exhaust fan (5) installed outside the water supply tank (4) The water supply tank (4) is composed of a water tank box (40), a tail flue (41) and a water replenishing float valve (42), and the tail flue (41) and the water replenishing float valve (42) are arranged in the water tank box ( 40) The front end of the tail flue (41) is connected to the exhaust port (26) of the branch flue (21, 22) of the tank exhaust port (33), and the rear port of the tail flue (41) (47) Connected to the exhaust fan (5), the water-filling float valve (42) is fixed to the water source hole (43), and the water-filling space of the water-filling tank body (40) passes through the lower water-filling hole (43) and the water-filling hole of the water-cooling box body ( 34) Connected, the upper end of the plenum box (40) is provided with a return hole (45).
A smoke exhaust system for a gas steamer according to claim 5, wherein said tail flue (41) is curved and has a spoiler (46) built therein.