Water vapor collection device

Abstract

This invention discloses a water vapor collection device, comprising a frame disposed outside a gas cylinder, a vapor collection hood mounted on top of the frame, one side of the frame hinged to the vapor collection hood, and at least one centrifugal fan mounted on the vapor collection hood. The centrifugal fan is connected to a flame-retardant duct, the other end of which is connected to a condensation system. This device can achieve large-area vapor collection and elimination, and the vapor hood can be opened at any time for easy removal of the gas cylinder for maintenance. The device has a simple structure, low cost, and meets the needs of large-area vapor collection.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial waste gas treatment and high-temperature environment equipment, specifically to a water vapor collection device. Background Technology

[0002] After spinning, large-capacity seamless steel gas cylinders require quenching and tempering heat treatment to obtain good mechanical properties. The tempering temperature of the gas cylinder is approximately 640℃. When the gas cylinder comes out of the tempering furnace, the cylinder body temperature is high, requiring water spraying to cool it down. Spraying water onto the tempered cylinder body instantly generates a large amount of water vapor. Prolonged exposure to this water vapor can corrode surrounding equipment and the roof, reducing the service life of the equipment and roof.

[0003] Currently, commonly used steam collection devices typically employ compressors and high-efficiency heat exchangers to compress and cool water vapor, converting it into liquid water to eliminate the steam. However, large-capacity seamless steel gas cylinders, approximately 13 meters long with a large span, generate steam over a wide area. Conventional compressor units and heat exchangers cannot collect and eliminate steam over such a large area, making them unsuitable for collecting steam generated during spraying after heat treatment of large-capacity seamless steel gas cylinders. Furthermore, compressor units and heat exchangers are complex in structure, costly, and require significant investment. If a malfunction occurs during the heat treatment process, the cylinder needs to be removed for repairs. Current technology lacks a steam collection device that allows for easy movement and disassembly, enabling the cylinder to be removed at any time to prevent accidents. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this invention proposes a steam collection device. This device can collect and eliminate steam over a large area, and the steam hood can be opened at any time, facilitating the removal of gas cylinders for maintenance. The device has a simple structure, low cost, and meets the needs of large-area steam collection.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A water vapor collection device includes a frame disposed outside a gas cylinder, a gas collection hood disposed above the frame, one side of the frame being hinged to the gas collection hood, the gas collection hood being provided with at least one centrifugal fan, the centrifugal fan being connected to a flame-retardant duct, and the other end of the flame-retardant duct being connected to a condensation system.

[0007] Preferably, a winch is connected to the side of the gas collection hood away from the hinge point.

[0008] Preferably, a pull rope is connected to the side of the gas collection hood away from the hinge point, and the pull rope is connected to the winch after passing over the fixed pulley block above.

[0009] Preferably, the gas collection hood includes a steel frame, and the exterior of the steel frame is covered with a heat-resistant gel coat. Preferably, a silicone sealing strip is provided at the joint between the steel frame and the heat-resistant gel coat.

[0010] Preferably, the steel used in the steel frame is a hollow structure.

[0011] Preferably, the flame-retardant duct is made of glass fiber silicone and has steel wire embedded inside.

[0012] Preferably, the flame-retardant duct has a flexible and foldable structure, which facilitates the opening of the gas collection hood.

[0013] Preferably, the condensation system includes a water tank and a steam distribution pipe, the upper end of the steam distribution pipe is connected to the end of a flame-retardant air duct, and the lower end of the steam distribution pipe is located below the water level in the water tank.

[0014] Preferably, the portion of the steam distribution pipe below the liquid level is provided with multiple vent holes, each with a diameter of 10 mm and a spacing of 150 mm.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Excellent high temperature resistance: The high temperature resistant glass fiber silicone duct allows the device to operate continuously for ≥5000 hours in an environment of 200℃~250℃.

[0017] 2. High-efficiency coverage and collection: The 13.7-meter-long gas collection hood can cover more than 99% of the gas cylinder surface area. With a 5000m3 / h fan, the steam collection efficiency is ≥95%.

[0018] 3. Easy to operate: The hollow steel frame achieves a lightweight design, and combined with the winch lifting device, a single person can complete the opening and closing of the gas collection hood within half a minute.

[0019] 4. High-efficiency condensation recovery: Through the submerged vent structure, high-temperature steam and cooling water are in full contact, resulting in high steam condensation efficiency. Attached Figure Description

[0020] Figure 1 This is a front view of the overall structure of the gas collection hood of this utility model in the fastened state;

[0021] Figure 2 This is a top view of the overall structure of the gas collection hood of this utility model in the fastened state;

[0022] Figure 3 This is a left view of the overall structure of the gas collection hood of this utility model in the locked state;

[0023] Figure 4 This is a schematic diagram of the opening structure of the gas collection hood of this utility model;

[0024] Figure 5 This is a schematic diagram of the immersion-type air outlet structure of this utility model.

[0025] In the diagram: 1. Centrifugal fan, 2. Gas collection hood, 3. Column, 4. Fixed pulley block, 5. Pull rope, 6. Flame-retardant duct, 7. Cooling system, 8. Hinge, 9. Gas cylinder, 10. Winch, 11. Steam distribution pipe, 12. Water tank, 13. Frame. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] This utility model discloses a method such as Figure 1-5 The water vapor collection device shown includes a vapor collection hood 2, a flame-retardant duct 6, a centrifugal fan 1, a frame 13, a vapor collection hood lifting device, and a condensation system 7. The frame 13 supports the vapor collection hood 2 and is hinged to one side of the hood 2 via a hinge 8.

[0028] The frame 13 is set above the gas cylinder to support the gas collection hood 2. One side of the frame 13 is connected to the gas collection hood 2 by a heavy-duty stainless steel hinge 8, and the other side is controlled by a lifting device to adjust the opening and closing angle of the gas collection hood 2 within the range of 0° to 90°, so as to facilitate the opening of the gas collection hood 2.

[0029] The gas collection hood 2 is constructed from 50×30mm rectangular steel pipes welded together to form a steel frame. Its overall length is 13.7 meters, capable of completely covering the large-capacity seamless steel gas cylinder 9 (maximum length 13 meters), providing excellent steam collection. The frame is covered with a 2mm thick heat-resistant gelcoat sheet (temperature resistance ≥200℃), secured with high-temperature bolts, and the joints are filled with silicone sealing strips. The steel frame uses a hollow rectangular tube structure, reducing the overall weight by 50% compared to traditional steel plate structures, facilitating rapid opening via a lifting device.

[0030] The centrifugal fan 1 is fixed above the air collection hood by shock-absorbing pads, and its flow rate is 5000 m³ / h. 3 With a capacity of 775Pa and a total pressure of 775Pa, the centrifugal fan can quickly and effectively collect and blow away water vapor. The fan is controlled by a frequency converter, allowing for speed adjustment based on steam volume, thus reducing energy consumption. A leak-proof gasket is installed between the flame-retardant duct 6 and the centrifugal fan 1.

[0031] The flame-retardant air duct 6 is made of high-temperature resistant glass fiber silicone air duct with a temperature resistance rating of 300℃. It connects the centrifugal fan 1 and the water tank 12. The flame-retardant air duct 6 is foldable, which facilitates the opening of the gas collection hood.

[0032] The lifting device for the gas collection hood 2 consists of a winch 10, a pull rope 5, and two sets of fixed pulleys 4. One end of the pull rope 5 is fixed to one side of the gas collection hood 2, and the other end passes over the two sets of fixed pulleys 4 mounted on the column 3 and connects to the winch 10. Starting the winch 10 can quickly open the gas collection hood 2. The winch 10 is set to limit the maximum opening angle of the gas collection hood 2 to be less than 90°. The pull rope 5 here is made of steel wire rope.

[0033] The condensation system 7 consists of a water tank 12 and a steam distribution pipe 11. One end of the steam distribution pipe 11 is connected to the flame-retardant air duct 6, and the other end is positioned approximately 20 cm below the liquid level in the water tank 12. Multiple vents with a diameter of 10 mm and a spacing of 150 mm are distributed on the pipe. High-temperature steam is ejected from the vents and comes into full contact with the cooling water in the water tank 12, exchanging heat through forced convection and conduction. The latent heat of the steam is absorbed by the water, causing the temperature to rapidly drop below the dew point, condensing into liquid water and thus eliminating steam.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water vapor collection device, characterized in that, Includes a frame (13), which is located outside the gas cylinder (9). A gas collection hood (2) is provided above the frame (13). One side of the frame (13) is hinged to the gas collection hood (2). The gas collection hood (2) is provided with at least one centrifugal fan (1). The centrifugal fan (1) is connected to a flame-retardant duct (6). The other end of the flame-retardant duct (6) is connected to a condensation system (7).

2. The water vapor collection device according to claim 1, characterized in that, The hoist (10) is connected to the side of the gas collection hood (2) away from the hinge point.

3. The water vapor collection device according to claim 2, characterized in that, The gas collection hood (2) is connected to a pull rope (5) on the side away from the hinge point. The pull rope (5) passes over the fixed pulley group (4) above and is connected to the winch (10).

4. The water vapor collection device according to claim 1, characterized in that, The gas collection hood (2) includes a steel frame, and the outside of the steel frame is covered with a heat-resistant gel coat.

5. A water vapor collection device according to claim 4, characterized in that, A silicone sealing strip is installed at the joint between the steel frame and the heat-resistant gel coat.

6. A water vapor collection device according to claim 4, characterized in that, The steel profile used in the steel frame is a hollow structure.

7. A water vapor collection device according to claim 1, characterized in that, The flame-retardant air duct (6) is made of glass fiber silicone.

8. A water vapor collection device according to claim 1, characterized in that, The flame-retardant duct (6) has a foldable structure.

9. A water vapor collection device according to claim 1, characterized in that, The condensation system (7) includes a water tank (12) and a steam distribution pipe (11). The upper end of the steam distribution pipe (11) is connected to the end of the flame-retardant air duct (6), and the lower end of the steam distribution pipe (11) is located below the water level in the water tank.

10. A water vapor collection device according to claim 9, characterized in that, The portion of the steam distribution pipe (11) below the liquid level is provided with multiple vent holes.

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