SU1585616A1 - Apparatus for automatic supply of sealing lubricant into closure assembly - Google Patents

Abstract

The invention relates to lubricant supply devices using the pressure of another working fluid and can be used in the chemical, gas and other industries of the industry for lubricating valves. The purpose of the invention is to improve work safety. The device contains a pneumatic actuator with a control unit and a source of control pressure, a cylinder including a metering chamber, a reservoir with lubricant, opposite differential pistons, the steps of which are connected to the control unit, and the metering chamber with lubrication points. 1 il.

Description

The invention relates to devices of another type by pressure, which can be used in the gas, petroleum, chemical, and other sectors of the industry for servicing valves of the fittings.

The purpose of the invention is to increase the safety of the device for the automatic supply of sealing grease to the valve assembly by eliminating moving parts that go beyond the dimensions of the device.

The drawing shows a device for

 see grease seal lubricant in valve assembly, section and diagram of valve control system nn. It contains a cylinder 1. In which the opposed ones are installed for two-stage differential pistons 2 and 3 forming the pre-piston and control cavities 4 and 5 and the intermediate field 6. Reservoir 7. the metering chamber 8 and the piston cavity 9. The cavity 5 is connected via bw 10 to the source

 CT4 and GGP are constant, and cavities 4 and 9 are connected to the control pressure source through control lines 1 and 12. The tank 7 is filled with sealing grease and is connected via a non-return valve 13 to the metering chamber 8, which is connected to the valve fittings 15 through a pipe 14 and the valve body is equipped with a pneumatic actuator 16

In this way, the following pressure is applied to cavity 5: the control pressure is applied continuously. In cavities 4 and 9, the control pressure is applied only during the movement of the valve closure body of the valve to the closed position. During the movement of the locking member, the piston 2 pushes the lubricant out of the cavity 7.

ZTG Sheng piston 3. As soon as the valve valve body reaches the Closed position, the signal from the control unit 12 to the hydraulic actuator 16 and in the cavity is removed.

4 and 9. Cavities 4 and 9 are connected to the atmosphere, and the piston 3 under the action of pressure in the cavity 5 moves and squeezes a portion of sealing grease from the dosing chamber 8 through line 14 into the valve 15.

Claims (1)

Apparatus of the Invention A device for automatically supplying a sealing lubricant to an armature valve assembly comprising a pneumatic actuator with a control unit and a control pressure source, a cylinder with a metering chamber and a lubricant reservoir communicated to each other through a check valve installed in the partition wall pistons, one of which is installed by the first stage in the dosing chamber and with the formation of the second stage of the over-piston and sub-piston cavities in the cylinder And the other is mounted in the tank to form In the control cavity cylinder, the piston cylinder piston cavity is connected to the control pressure source directly, and the cylinder piston piston cavity and the control piston cavity reservoir are controlled through the control unit, in order to improve work safety by eliminating outgoing for the dimensions of the device of movable elements, tank made in the dividing wall; the reservoir piston is provided with a second stage placed in the control cavity with the formation of an intermediate cylinder cavity communicated with the atmosphere. Yahshdid 12 ten d 12 11 p Ruhr AJ sixteen I 15 X at