SU1472736A1 - Connecting device for suppylying and diverting liquids - Google Patents

Abstract

The invention relates to the petroleum and chemical industries. The purpose of the invention is to increase reliability and safety. The device consists of two coupled coupling halves, with the first coupling half being installed on the filling means, and the second coupling half - on the sealed container. The first half coupling contains a spring-loaded saddle and a fixed valve, the second half coupling - a movable check valve and a fixed saddle, made in the housing. In the process of docking of the half coupling housings, in the interaction of valves and seats, valve openings for fluid flow open. In the case of the second coupling half there are cavities, a drain hole, a radial channel for connecting a drain pipe. They are intended for separate movement of liquid and air-gas mixture and placing in the body of a float valve of a liquid limit level, safety (respiratory) valves interacting with a half-coupling non-return valve by means of an intermediate hinge link, which ensures that the liquid is filled and drained from a sealed container with a drain steam-gas mixture outside the working area. The disconnection of the coupled coupling halves is performed without loss of liquid product. 2 hp f-ly, 4 ill.

Description

Figures 1 and 2 depict the proposed device in its original position, the general view; on fig.Z - the same, in the field of liquid supply, obry view; j and fig o4 - the same, in the position of withdrawal of liquid, a general view (for the time being, the direction of the liquid supply and gas motion) is shown by arrows.

The device consists of two 10-UFTs with a bayonet mount. (Fig.1 and 2). The second coupling half is installed on a sealed capacitor. the bone, the first half coupling is connected to the pressure hose of the filling means 15. The first half coupling (Fig. 1) consists of a housing .1 with an inlet cone and a diaphragm, in the axial hole of which the valve 2 is fixed, pins 3 for bayonet mounting 20, movable seat 4, spring 5, pipe 6, lock nuts 7, sealing rings 8 -ten.

The second coupling half (figure 2) consists of a case 1i, made with the possibility of its urtanovka on the tank 12, by means of a flange 13, welded to the top sheet of the tank, the cover 14 of the case, 15 of the safety valves, the check valve jg 16, spring 17 pressure valve 18, vacuum valve -19, valve springs 20 and 21, pressure valve seat 22, intermediate link 23 pivotally mounted on the end of guide sleeve 24 fixed by retaining ring 25.

The guide bushing 24 also serves as a partition dividing the body into the cavity A for the liquid and the cavity. B and B for gas. Cavities B and B are connected to each other by a drainage bore - -, tium D, and with a tank - by apertures of diaphragm 26. In cavity B - statuses. The flax float valve 27 of the limiting liquid level is kept from shutting off the drain hole D due to the pressure difference by the spring 28. The cavity A communicates with the tank 12 of the radial channel D and the cream tube 29 intended for draining the liquid when it is drained from the tank.

O-ring rubber seals 30-35 are used to seal the abutting surfaces. Two diametrically opposite grooves for cylindrical pins 3 are joined first

,

half coupling (figure 1). The grooves have a tapered foot.

The device works as follows.

When docking a device consisting of two coupling halves, where the first coupling half is connected by a pressure hose to a filling agent (not shown) and the second coupling half is mounted on the container 12, the external sealing of the housings 1 and 11 is first ensured by sealing of the ring 30 mounted on the lead-in part in the groove of the housing of the second coupling half and creating a seal on the cylindrical surface of the housing of the first coupling half. In this case, the condition of equality of sizes E and Z should be satisfied.

With further axial movement of the body of the first coupling half, the end surfaces of the seats and the valve plates are combined, then the moving parts of the device, the valve of the second and the valve seat of the first half coupling, begin to move under the influence of the bearing surfaces. After the bayonet of the coupling docks are fastened, the valves remain in the open position.

Simultaneously with the movement of the valve valve 16 of the second coupling half, its stem, acting on the pivotally mounted intermediate link 23, opens the safety valve 18, creating conditions for equalizing the pressure in the tank 12 to atmospheric pressure and ensuring free drainage of the vapor-gas mixture from the tank being filled.

When fluid is supplied to the tank, a transfer pump is turned on. Fluid through the pressure hose through the open valves of the device, through the drain pipe 29 enters the tank 12. The vapor-gas mixture coming in from the fluid and the air displaced by the liquid from the tank through the drainage holes of the housing and opening the safety valve 18, through the fitting and hardening gas pipe (not shown) ) retracted from the work area. Instead of the exhaust gas pipe, a gas neutralizing filter (not shown) can be installed on the fitting of the valve box 15.

When the tank 12 is completely filled, the float valve is activated.

valve 27, which closes the drain hole G and prevents the release of fluid out through the drainage channels.,

To supply fluid from. Capacity 12 after docking the device through a fitting (not shown) of the valve cover 15, air-gas is injected. the mixture, which through the open valve 18, the drainage opening G and the openings of the diaphragm 26 enters the container 12.

Displaced by the air-gas mixture, the liquid flows through the drain pipe 29 and the radial channel D into the cavity A, then through the open valves the coupling halves and the pressure hose (not shown) flows into the drain tank (not shown).

After the operation of supplying or discharging fluid, the device is disconnected, in which the coupling halves fully close the valves of the coupling springs, the fluid is displaced, since the end surfaces of the saddles and the valve plates have coincided. Thus, due to the absence of free space between the valves, the process of disconnection of the device occurs without loss of fluid,

Claims (3)

1. A connecting device for supplying and discharging a liquid, consisting of the first coupling half, comprising a housing in which a diaphragm C with a fixed shank of a fixed valve fixed to which spring-loaded cushion is pressed, and a second, is fixed in / it. 727366 A semi-coupling half, comprising a housing with a fixed seat installed therein, with sealing rings and a spring-loaded Check valve pressed against it, the shank of which is placed in the axial opening of the diaphragm, in order to increase reliability and safety, it is equipped with a sealing chamber articulated with the body of the second module, a guide bush mounted on the back valve, an intermediate -15 pivot link and a safety valve and valves, the stem of which is in contact with a check valve among Twomey said intermediate link scharnirnogo, k 20 is also spring-zhinennm poplavkovm valve limit level, the piston rod of which is placed in the axial hole of the diaphragm, wherein the second coupling part in the housing channel formed radiaLnm sliv- with hydrochloric pipe 25 and the guide sleeve is placed. 2. The device according to claim 1, which is 10 hours so that, in order to improve the convenience of operation and 30 manufacturability, it is equipped with a bionet lock, implemented at the combination of both coupling halves. 35 3. The apparatus according to claim 1, wherein the safety valves are arranged in common with each other, the pressure valve stem and trough being a guide and a seat for the discharge valve, and a pressure seat valve - it is a guide for it, the rod. f8 IS Ai r 8 and 1 TO $ .Z 15 a9  ffff fffJffJ ffffffjrfffffffiTfJ fMffffanrffrfmf. srigL