CN201428924Y - Natural Gas Traps - Google Patents

Abstract

The utility model proposes a natural gas trap, in which the upper cylinder body installed with a concave surfacing flange water inlet pipe and the lower cylinder body installed with a drainage connecting pipe I are butted through flanges, flange gaskets, and outer hexagonal bolts. The upper end of the upper cylinder is connected with the upper oval head; the lower end of the lower cylinder is connected with the lower oval head, which is installed on the base with the base flange. One end of the elbow sewage pipe is connected to the bottom of the lower oval head, and the other end is The side of the base is drawn out; a baffle is installed horizontally below the water inlet pipe on the inner wall of the upper cylinder, and a float assembly is installed in the lower cylinder, and the sealing assembly installed with the drain connection pipe 1 is connected by a split pin, a pin shaft, a flat washer and a lever. It is suitable for installation and use in the collection, storage and transportation system of natural gas mines to realize gas-water separation in natural gas mines and automatic discharge of deposited water (liquid) in natural gas storage tanks without natural gas leakage, and has the best energy-saving and environmental protection effects.

Description

Natural Gas Traps

technical field

The utility model relates to a device for separating and discharging deposited water from a closed container for storing natural gas, in particular to a natural gas drain valve.

Background technique

During the production of natural gas mines in the petrochemical sector, when natural gas is collected, part of the groundwater will be ejected along with the natural gas into the natural gas pipeline and storage tank system, especially a certain amount of water will be deposited in the natural gas storage tank In order to ensure the quality and grade of natural gas and improve the storage and transportation efficiency of the existing pipeline and gas storage tank system, the sedimentation water in the natural gas storage tank should be drained as much as possible. For this reason, in the production of natural gas mines, there is a special type of drainage work, and a special person is responsible for discharging the deposited water in the storage tank at regular intervals. The deposited water in the gas storage tank has just been drained. At present, a large amount of natural gas often leaks out along with the discharged water during artificial drainage. This not only causes waste of natural gas resources and environmental pollution, but also causes fires in severe cases. Even explosion accidents are extremely unsafe factors in the production, operation, storage and transportation of natural gas mines. Recently, although some natural gas storage tanks have installed a "gas-water separator" device, this device still needs to be operated by a special person, and the drainage effect is not very ideal. The body has a uniform linear continuous hydrophobic function, and the displacement is small, and the sealing surface is easy to wear and corrode.

Utility model content:

The utility model is a natural gas trap proposed on the basis of the prior art, which can automatically drain water and block gas without consuming energy, and can automatically drain the deposited water in the gas storage tank and ensure that the natural gas has no slight leakage without special operation. .

Its technical solution is: a natural gas trap, including a butt jointed lower cylinder and an upper cylinder, a water inlet pipe is installed at the upper end of the side of the upper cylinder, and a drain connection pipe I is installed at the lower end of the side of the lower cylinder, and the inner wall of the upper cylinder is provided with a water inlet pipe. A baffle is installed horizontally below the water pipe, and a floating ball assembly is installed in the cylinder below the baffle. The lower end surface is fixedly connected to the elliptical head, and is fixedly placed on the base. One end of an elbow sewage pipe is connected to the bottom of the lower oval head, and the other end is led out from the side of the base. The lower cylinder body is connected with the convex flange on the lower end surface of the upper cylinder body through the concave flange on the upper end surface. Flange gaskets are placed between the flanges, and the flanges are fastened by external hexagonal bolts. An upper elliptical head equipped with a pressure gauge seat and a pressure gauge, an eyebolt, an eyelet seat, and a joint seat is fixedly connected to the upper end surface of the upper cylinder body. One end of the lever is connected with the lower end of the float assembly by cotter pin, bearing pin, flat washer, and the other end is connected with the drain connecting pipe 1 by the sealing assembly. The outer end of the drain connecting pipe I is connected to the drain connecting pipe II, and the outer end of the water inlet pipe is connected to the concave surfacing flange. The inner wall of the steam trap is treated with anticorrosion.

The internal structure of the steam trap adopts a large stainless steel floating ball.

The sealing surface of the steam trap is surfacing with hard alloy.

The equipment is fully automatic and continuous operation, when there is water, it will be discharged, if there is no water, it will be automatically closed, and the discharge rate of deposited water (liquid) is 100%. The gas barrier is tight, there is no natural gas leakage, and the leakage rate is zero. It can automatically settle the dirt, implement regular sewage discharge, strong anti-pollution ability, and no clogging phenomenon. The internal parts of the equipment are all stainless steel, and the inner wall of the valve is treated with anti-corrosion, so the service life is long. Easy to install, no need to debug, stable operation, no noise, safe and reliable. The internal structure of the steam trap adopts a large floating ball, which can increase the displacement from the original 8T (10T)/h to 12T/h (same caliber), and the displacement is uniform and linear. At the same time, the sealing surface is made of hard alloy surfacing, which is wear-resistant, steam-resistant, corrosion-resistant, and has a long service life. The arc-shaped top cover is adopted, and the appearance is more beautiful.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Detailed ways:

The utility model is a natural gas trap, which is especially suitable for installation and use in the collection, storage and transportation of natural gas mines. It consists of a base flange (1), an elbow sewage pipe (2), a base (3), an elliptical head (4), and a cylinder body (5) Cotter pin (6) Pin shaft (7) Flat washer (8) Concave flange (9) Convex flange (10) Float assembly (11) Upper cylinder (12) Concave surfacing flange (13) Inlet pipe (14) upper oval head (15) pressure gauge seat (16) pressure gauge Y-60 (0-16MPa (17) eyebolt screw (18) eyelet seat (19) joint seat (20) baffle (21) Flange gasket (22) hex bolt (23) sealing assembly (24) drain connecting pipe I (25) drain connecting pipe II (26) and other parts. In the operation process, first connect the water inlet pipe (14) to The drain pipe of the gas-water separator of the natural gas storage tank. At this time, the deposited water enters the upper cylinder (12) through the water inlet pipe (14), and the natural gas that enters the upper cylinder (12) along with the deposited water is sealed in the upper cylinder. (12) top, at this moment the buoyancy of the ball float (11) is larger, the ball float (11) rises vertically, pulls the lever to open the drainage connecting pipe (25) to drain, and along with the decline of the water level, the ball float (11) ) buoyancy gradually decreases, the floating ball (11) descends vertically, pushes the lever to close the drain connecting pipe (25), and the natural gas can be tightly sealed to prevent natural gas from leaking. When the deposited water enters the upper cylinder (12) again When inside, the natural gas tightly sealed in the upper cylinder 12 is replaced back into the storage tank, and this is repeated, using the buoyancy difference formed by the density difference between the gas and water medium on the floating ball 11, the floating ball 11 pulls the drainage connection when it goes up and down Pipe (25) is opened or closed, reaches the purpose that all the deposited water in the gas storage tank is drained, and can completely stop the leakage of natural gas again.

Claims (3)

1. A natural gas trap, comprising a docked lower cylinder (5) and an upper cylinder (12), the upper end of the side of the upper cylinder (12) is equipped with a water inlet pipe (14), and the lower end of the side of the lower cylinder (5) is installed There is a drain connection pipe I (25), and a baffle (21) is installed horizontally below the water inlet pipe (14) on the inner wall of the upper cylinder (12), and a float assembly (11) is installed in the cylinder below the baffle (21). The ball assembly (11) is connected to the drain connecting pipe I (25) through a lever, and is characterized in that it also includes a base (3) with a base flange (1) installed at the bottom, and the lower end surface of the lower cylinder (5) is fixedly connected The elliptical head (4) is fixedly placed on the base (3), and one end of an elbow sewage pipe (2) is connected to the bottom of the lower elliptical head (4), and the other end is led out from the side of the base (3); the lower cylinder ( 5) The concave flange (9) on the upper end surface is connected with the convex flange (10) on the lower end surface of the upper cylinder (12), the flange gasket (22) is placed between the flanges, and the flange passes through the outer hexagonal bolt (23 ) fastening; an upper elliptical head (15) and upper cylinder ( 12) The upper end surface is fixedly connected; one end of the lever is connected to the lower end of the float assembly (11) through the split pin (6), pin shaft (7), and flat washer (8), and the other end is connected to the drain connection pipe through the sealing assembly (24) I (25) is connected, and the outer end of the drain connecting pipe I (25) is connected to the drain connecting pipe II (26); the outer end of the water inlet pipe (14) is connected to the concave surfacing flange (13); the inner wall of the valve is treated with anticorrosion. 2. The natural gas trap according to claim 1, characterized in that the internal structure adopts a large stainless steel floating ball. 3. The natural gas trap according to claim 1, characterized in that the sealing surface is surfacing with hard alloy.

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