JP3453640B2 - Gas-liquid separator with wet steam wetness control - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-liquid separator having a function of adjusting the wetness of wet steam supplied to a steam-using device used in various factories and production plants. About the vessel. [0002] Steam is frequently used in factories and plants as a heat source for production. Steam is usually generated in a boiler and sent to each steam-using device via a pipe, but during transportation, heat is taken away by heat radiation and the like. Is a few
Cents of wetness. The mass of the liquid contained in 1 kilogram of wet saturated steam is the wetness of the steam. If the wetness is high, the amount of water droplets contained in the steam will increase, making it impossible to heat the object to be heated uniformly. In the case of food, medicine, etc., water damage may occur, rust or corrosion may occur on equipment that uses steam, or water may increase if the amount of liquid increases.
The equipment may be damaged due to the hammer phenomenon, and the wetness of the wet steam must be strictly controlled. [0003] Conventionally, a gas-liquid separator has been conventionally arranged immediately before a steam-using device to separate moisture from steam and remove it from the system. Gas-liquid separators use a centrifugal force to separate gas and liquid in a gas-liquid separation chamber, or separate by mixing a gas-liquid mixture with a collision plate and allowing the liquid to drip along the collision plate. And those separated by filtration using a filter or filter paper have been used. [0004] In the case where only the above-mentioned conventional gas-liquid separator is provided, the wetness of steam becomes too low, so that heating of some fibers or chemical products is difficult. However, there is a problem that the target product causes heat damage such as burns. Therefore, a technical problem of the present invention is to provide a gas-liquid separator having a wetness adjusting function capable of adjusting the wetness of wet steam. [0005] The structure of the gas-liquid separator having the function of adjusting the wetness of wet steam according to the present invention is as follows. An inlet, a gas-liquid separation chamber, and an outlet are sequentially formed by separator casing, a gas-liquid separation member is arranged in the gas-liquid separation chamber, a liquid storage chamber is provided below the gas-liquid separation chamber, and a liquid storage chamber is provided. The provided throttle section is connected to the liquid in the liquid storage chamber by a connecting pipe, and a flow control valve is arranged in the connecting pipe. The wet steam flowing from the inlet of the gas-liquid separator is separated into gas and liquid by a gas-liquid separation member in a gas-liquid separation chamber by centrifugal force, collision, filtration, and the like. The separated moisture flows down to the lower liquid storage chamber, and the vapor from which the moisture has been separated reaches the outlet through the throttle. When the steam passes through the throttle provided at the outlet at a high speed, the water in the liquid storage chamber is sucked up through the connecting pipe and mixed with the steam again. By adjusting the opening of the flow control valve disposed in the connecting pipe to adjust the amount of water mixed with the steam again, the wetness of the wet steam supplied to the steam using device can be adjusted. Next, an embodiment shown in FIG. 1 will be described. The inlet 2, the gas-liquid separation chamber 3 and the outlet 4 are formed by the separator casing 1, and the gas-liquid separation member 5 is disposed in the gas-liquid separation chamber 3. The gas-liquid separation member 5 communicates an annular space 7 formed between the double cylindrical members 6 with the inlet 2 via a screen 8, and swirl vanes for swirling the fluid from the inlet 2 into the annular space 7. 9 is provided, and the lower end of the inner cylindrical member is formed in a flared shape to form a drainer 10. The outlet 4 communicates through the inside of the inner cylindrical member. A throttle 11 is formed at the outlet 4. [0008] A liquid reservoir chamber 12 is communicated below the draining section 10 and a float valve 13 is disposed in a free state therein. A valve seat member 15 penetrating through a valve port 14 is attached to a lower portion of the float valve 13. The valve port 14 communicates with the outside of the system through a liquid discharge hole 16. On the outer periphery of the float valve 13, a float cover 17 for preventing the float valve 13 from oscillating is provided.
A through hole 18 is provided in the upper part of the cover 17. A connection pipe 19 is provided, one end of which opens into the throttle section 11 and the other end of which opens into the liquid in the liquid reservoir chamber 12. Connecting pipe 1
9 is provided with a flow control valve 20. It is desirable that the opening of the connecting pipe 19 on the throttle unit 11 side be a nozzle shape capable of injecting water in a spray state. Next, the operation will be described. The wet steam flowing from the inlet 2 passes through the screen 8 and reaches the gas-liquid separation chamber 3. The water is swirled by the swirling blades 9 of the annular space 7, the water having a large mass is squirted outward by centrifugal force, and the vapor having a small mass is swirled inside the annular space 7 to separate gas and liquid. The water spouted outward travels along the inner wall of the casing and flows down into the liquid storage chamber 12 to be stored. Draft line 21
When the above-mentioned moisture accumulates, the float valve 13 floats by buoyancy and opens the valve port 14, whereby the moisture is discharged out of the system. The steam from which the water has been separated reaches the inner periphery of the inner cylindrical member from the lower end of the water draining section 10, sucks the water in the liquid storage chamber 12 from the connecting pipe 19 when passing through the throttle section 11, and Spill out of. By adjusting the opening of the flow control valve 20, the wetness of the wet steam flowing out of the outlet 4 can be adjusted to a desired wetness. According to the present invention, by adjusting the opening of the flow control valve, the wetness of the wet steam can be adjusted, and damage to the product can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a gas-liquid separator having a function of adjusting the wetness of wet steam according to the present invention. [Description of Signs] 1 Separator casing 2 Inlet 3 Gas-liquid separation chamber 4 Outlet 5 Gas-liquid separation member 11 Throttle section 12 Liquid storage chamber 19 Connecting pipe 20 Flow control valve

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F22B 37/26 F22G 5/12

Claims (1)

(57) [Claims 1] An inlet, a gas-liquid separation chamber, and an outlet are sequentially formed by separator casing, and a gas-liquid separation member is disposed in the gas-liquid separation chamber. Characterized in that a liquid storage chamber is provided in communication with the lower part of the chamber, and a restrictor provided at the outlet and the liquid in the liquid storage chamber are connected by a connecting pipe, and a flow control valve is disposed in the connecting pipe. Gas-liquid separator with degree adjustment function.