CN205090191U - Can take and press device of changing high -pressure oil gas storage tank jar mouth and connecting - Google Patents

Abstract

The utility model relates to a can take and press device of changing high -pressure oil gas storage tank jar mouth and connecting comprises flange, sealed piston, piston rod, manipulator etc. At the bottom of control gate valve, hydro -cylinder, hydro -cylinder upper cover, the hydro -cylinder, appears leaking or when damaging when jar mouthful connecting, with the utility model discloses install on the jar mouth, make under the condition of pressing in the area piston rod area the manipulator and down or go upward, realize the dismantlement or the installation that connect the jar mouth. The utility model discloses simple to operate, safe and reliable have avoided connect leaking or damage disasters such as the conflagration that causes and explosion because of the jar mouth, play most important effect to the life safety who protects the social property and the people.

Description

A device capable of replacing the tank mouth joint of a high-pressure oil and gas storage tank under pressure

technical field

The utility model belongs to the technical field of the oil and gas transportation industry, in particular to a device capable of replacing the tank mouth joint of a high-pressure oil and gas storage tank under pressure.

Background technique

High-pressure oil and gas storage tanks are essential equipment for oil and gas storage and transportation. Oil and gas are flammable and explosive substances with low ignition points. During transportation or storage, the tightness of high-pressure oil and gas storage tanks must be strictly guaranteed. In particular, natural gas has been widely used in the urban transportation industry, especially the urban taxi industry, due to its advantages of cleanness, environmental protection, low price, and less loss to vehicles. However, because the joints of the gas storage tanks are bound to be loosened or damaged during rear-end collisions and long-term use, the sealing of the high-pressure oil and gas storage tanks will be damaged, resulting in natural gas leakage, and the pressure in the high-pressure oil and gas storage tanks is generally above 20MPa. , if the leakage is not controlled and eliminated in time, the leaked natural gas will mix with air or oxygen to form an explosive gas, which is prone to flash explosion, spread rapidly and expand, causing serious disasters. Therefore, designing a device that can replace leaked or damaged tank mouth joints on high-pressure oil and gas storage tanks in a timely manner plays a vital role in protecting social property and people's lives under pressure.

At present, there is no public report of a device that can replace the leaked or damaged tank mouth joint of the high-pressure oil-gas storage tank under the condition that the high-pressure oil-gas storage tank is under pressure.

Utility model content

The purpose of the utility model is to provide a device that can replace the leaked or damaged tank mouth joint of the high-pressure oil-gas storage tank when the high-pressure oil-gas storage tank is under pressure.

The purpose of the utility model is achieved by designing a device for replacing the mouth joint of a high-pressure oil-gas storage tank under pressure. The external thread of the tank mouth of the tank (1) is connected with the sealing flange (3), and the sealing flange (3) is sealed with the high-pressure oil and gas storage tank (1) through the end face seal (4), and the other end of the sealing flange (3) Connect the control gate valve (6) with multiple bolts (5) and seal it with a gasket ring (7). The other end of the control gate valve (6) is connected with the cylinder bottom flange (10) with multiple bolts (9), and use The gasket ring (11) is sealed, and the oil inlet joint (12), air release valve (13) and pressure gauge (14) of the lower cavity are installed on the oil cylinder bottom flange (10), and the oil cylinder bottom flange (10) and the oil cylinder ( 15) Threaded connection, the other end of the oil cylinder (15) is threaded to the oil cylinder upper cover (16), the oil cylinder upper cover (16) is connected to the upper chamber oil inlet joint (17), the oil cylinder bottom flange (10) and Piston rod sealing sleeve (18) is installed in the oil cylinder loam cake (16), and seal member (19) is installed on the piston rod sealing sleeve (18), and sealing piston (20) is installed in the oil cylinder (15), and sealing piston ( 20) Sliding fit with the inner hole of the oil cylinder (15), the sealing piston (20) is connected with the piston rod (21) with a double half key (22), and the seal (23) is used for sliding sealing with the oil cylinder, the piston rod (21) There is a hexagonal head (24) at the upper end of the shaft, which can be used for tools such as wrenches to facilitate operation. The lower end of the piston rod (21) is connected to the manipulator (25), and is locked with a set screw (26). (16), oil cylinder bottom flange (10) and control gate valve (6) are mutually sealed, and can do sliding fit.

The beneficial effects of the utility model are: in the case of high-pressure oil and gas storage tanks under pressure, according to the external dimensions of the tank mouth joints, manipulators with different opening sizes can be selected to safely and quickly replace the loose or damaged tank mouth of the gas storage bottle The joints can completely control the leakage, which not only protects the environment, but also ensures the safety of people's lives and properties.

Description of drawings

Below in conjunction with accompanying drawing and example the utility model is described further.

Fig. 1 is a schematic structural view of the utility model installed on a gas cylinder.

Fig. 2 is a schematic diagram of the utility model dismantling and proposing a damaged or leaking tank joint.

Fig. 3 is the schematic diagram that the utility model has installed the new tank joint on the gas cylinder. In the figure, 1-high pressure oil and gas storage tank; 2-tank joint; 3-sealing flange; 4-seal; 5-bolt; 6-control gate valve; 7-sealing gasket ring; 8-gate; 9-bolt ;10-flange at the bottom of oil cylinder; 11-gasket ring; 12-oil inlet joint of lower chamber; 13-vent valve; 14-pressure gauge; 15-oil cylinder; 16-oil cylinder upper cover; ;18-piston rod seal sleeve; 19-seal; 20-seal piston; 21-piston rod; 22-double half key; 23-seal; 24-hexagon head; - New tank fittings.

detailed description

Fig. 1 is the structural representation that the utility model is installed on the high-pressure oil-gas storage tank, in the shown embodiment, the tank mouth joint (2) is installed on the tank mouth internal thread of the high-pressure oil-gas storage tank (1), and the high-pressure oil-gas storage tank (1) ) is connected with the sealing flange (3) on the external thread of the tank mouth, the sealing flange (3) is sealed with the high-pressure oil and gas storage tank (1) through the end face seal (4), and the other end of the sealing flange (3) is sealed with a plurality of The bolt (5) is connected with the control gate valve (6), and is sealed with a gasket ring (7), the gate plate (8) of the control gate valve (6) is in a closed state, and the other end of the control gate valve (6) is connected with a plurality of bolts (9) ) is connected to the bottom flange (10) of the oil cylinder, and is sealed with a gasket ring (11). The bottom flange (10) of the oil cylinder is equipped with an oil inlet joint (12), an air release valve (13), and a pressure gauge (14 ), the oil cylinder bottom flange (10) is threadedly connected with the oil cylinder (15), the other end of the oil cylinder (15) is threadedly connected with the oil cylinder upper cover (16), and the oil cylinder upper cover (16) is connected with the oil inlet joint of the upper chamber (17), the cylinder bottom flange (10) and the oil cylinder upper cover (16) are equipped with a piston rod seal (18), and a seal (19) is installed on the piston rod seal (18), and the oil cylinder (15) A sealing piston (20) is installed inside, and the sealing piston (20) forms a sliding fit with the inner hole of the oil cylinder (15). The sealing piston (20) is connected with the piston rod (21) with a double half key (22), and the sealing member ( 23) Slidingly sealed with the oil cylinder, the upper end of the piston rod (21) has a hexagonal head (24), which can be used for tools such as wrenches for easy operation, and the lower end of the piston rod (21) is connected with the manipulator (25), and is fixed with a set screw (26) Lock, the piston rod (21) is sealed with the oil cylinder upper cover (16), the oil cylinder bottom flange (10) and the control gate valve (6), and can be used for sliding fit. The opening size of the manipulator (25) is according to the tank joint ( 2) The size of the decision.

Fig. 2 is a schematic diagram of the utility model after the leaked or damaged tank joint has been disassembled. In the shown embodiment, the control gate valve (6) is first opened, the upper chamber oil inlet joint (17) enters the oil, and the sealing piston (20) moves down with the piston rod (21) until the manipulator (25) catches the leaked or damaged oil. Tank joint (2), then from the hexagonal head (24) at the upper end of the piston rod, use a special tool to lift and rotate the piston rod (21) in the direction of screwing out the thread, and the manipulator (25) at the lower end of the piston rod (21) will Drive the leaked or damaged tank joint (2) to rotate, and at the same time the leaked or damaged tank joint (2) will be separated from the thread of the high-pressure oil and gas storage tank (1), and then the oil inlet joint (12) from the lower cavity The sealing piston (20) carries the piston rod (21), and the manipulator (25) at the lower end of the piston rod (21) will carry the leaked or damaged tank joint (2) upward until it reaches the control gate valve ( 6) above the gate (8), then close the control gate valve (6) and open the vent valve (13) until the reading of the pressure gauge (14) drops to zero, which proves that the control gate valve (6) has released the high-pressure oil and gas Channel closed.

Fig. 3 is the schematic diagram that the utility model has installed the new tank joint on the gas cylinder. In the shown embodiment, loosen the connecting bolt (9) between the control gate valve (6) and the cylinder bottom flange (10), so that the leaked or damaged tank joint (2) driven by the manipulator (25) can be seen. Replace the tank mouth joint (26) with a new one, then connect and seal the control gate valve (6) with the bottom flange (10) of the oil cylinder, open the control gate valve (6), and enter the oil from the upper chamber oil inlet joint (17), The sealing piston (20) carries the piston rod (21), and the manipulator (25) at the lower end of the piston rod (21) will carry the new tank joint (2) down to the internal thread port of the high-pressure oil and gas storage tank (1) At this time, use a special tool to press down the rotating piston rod (21) from the inner hexagon (24) at the upper end of the piston rod (21) in the direction of tightening the thread, and the new tank mouth joint (27) will be tightened on the high-pressure oil and gas storage tank. On the tank (1), let off the remaining air in the purge valve (13), and after the reading of the pressure gauge (14) drops to zero, it proves that the new tank joint (27) has been tightened and sealed the high-pressure oil-gas storage The mouth of the jar (1). Then operate by reverse procedure, piston rod (21) can be made to withdraw from with manipulator (25).

Claims (1)

1. A device capable of replacing the mouth joint of a high-pressure oil-gas storage tank under pressure, characterized in that the inner thread of the mouth of the high-pressure oil-gas storage tank (1) is provided with a storage tank joint, and the outer thread of the mouth of the high-pressure oil-gas storage tank (1) is The sealing flange (3) is connected to the thread, and the sealing flange (3) is sealed with the high-pressure oil and gas storage tank (1) through the end face seal (4), and the other end of the sealing flange (3) is connected with multiple bolts (5) It is connected with the control gate valve (6) and sealed with a gasket ring (7), the gate plate (8) of the control gate valve (6) is closed, and the other end of the control gate valve (6) is connected to the oil cylinder with multiple bolts (9) The bottom flange (10) is sealed with a gasket ring (11). The lower chamber oil inlet joint (12), air release valve (13), and pressure gauge (14) are installed on the oil cylinder bottom flange (10). Flange (10) is threadedly connected with oil cylinder (15), and the other end of oil cylinder (15) is threadedly connected with oil cylinder loam cake (16), and oil cylinder loam cake (16) is connected with upper chamber oil inlet connector (17), The cylinder bottom flange (10) and the oil cylinder upper cover (16) are equipped with a piston rod seal (18), a seal (19) is installed on the piston rod seal (18), and a seal is installed in the oil cylinder (15). Piston (20), sealing piston (20) and the inner hole of oil cylinder (15) form sliding fit, sealing piston (20) is connected with piston rod (21) with double half-key (22), and seal (23) and oil cylinder Sliding seal, the upper end of the piston rod (21) has a hexagonal head (24), which is convenient for tools such as a wrench to operate, and the lower end of the piston rod (21) is connected to the manipulator (25), and is locked with a set screw (26), and the piston Rod (21) is mutually sealed with oil cylinder loam cake (16), oil cylinder bottom flange (10) and control gate valve (6), and can do sliding fit.