RU1787931C - Distributing cock - Google Patents

Abstract

Usage: in gasoline equipment, for example, on field refueling means. SUMMARY OF THE INVENTION: a measuring pipe 6 calibrated in units of volume is installed on the end of the drain pipe 4 by means of a threaded connection. Then, a cylindrical float 8 is installed on the measuring pipe 6 in height corresponding to the mass of liquid to be discharged and the pipe 6 with the float 8 is lowered onto the neck of the container. The tapered end of the measuring tube 6 abuts against the bottom of the filled container, and the cylindrical flow chamber of the disk cutter 3 is aligned with the flow chamber 2 of the valve body 1 and the liquid begins to flow under pressure into the filled container. 2 ill.

Description

FIELD OF THE INVENTION The invention relates to a filling technique and can be used on fueling and transportation means, as well as on field filling stations and conveyors for dosed filling liquids into containers.

A known design of a fuel transfer valve comprising a housing with a drain pipe mounted on it with a hollow rod, the free end of which is made with bevel and end grooves, a spring-loaded valve, which is a ball, a control mechanism, consisting of a hinge mounted on a rod handles and levers. This design is the closest in technical essence to the proposed device and is selected as a prototype in which the throughput varies due to the movement of the rod, reducing or increasing the degree of opening of the grooves.

The rod is fixed using the flag, thereby providing manual control of the valve capacity.

The disadvantages of this fuel in the dispensing cock are its low speed, the presence of cowing pairs, which leads to a leak, the need to install a filter in front of the fuel dispensing cock, all this is a significant drawback, especially when operating on automobile refueling vehicles, as well as during refueling equipment in the field.

The aim of the invention is to reduce fuel loss when filling containers and simplifying the design of the crane.

This goal is achieved by the fact that the drain pipe of the manifold is mounted with the possibility of movement in a vertical plane relative to the housing, is equipped with a measuring tube mounted at its end, fixed on it by means of clamps with the possibility of axial movement of the float, and the valve is located at the junction of the drain branch pipe with housing. And the valve is made in the form of a disk cutter with a L-shaped channel.

Figure 1 shows a section of a dispensing tap; figure 2 is a top view of the crane.

The fuel dispensing valve comprises a cylindrical body 1 with a flow chamber 2 made inside. In the grooves of the housing 1, a disk cutter 3 is mounted therein, rotatably fixed to one end of the hollow drain pipe 4 and having a 5 L-shaped cylindrical flow chamber inside its body forms. At the second end of the drain pipe 4, using a threaded connection, a measuring tube 6 with a beveled end is calibrated in units of the volume of the filled tank, on which a cylindrical float 8 made of low-weight materials is mounted with the help of clamps 7 with the possibility of linear movement.

The fuel dispensing valve operates as follows: at the end of the drain pipe 4, a measuring pipe 6 calibrated in units of the volume of the filled tank is installed using a threaded connection. A cylindrical float 8 is installed on the measuring tube 6 by means of clamps and weight selection to a height corresponding to the mass of liquid to be discharged, after which the measuring tube b with the float 8 is lowered into the neck of the tank to be filled, the crane is moved using the disk cutter 3 to the working position, the beveled end the measuring tube 6 abuts against the bottom of the filled tank, and the cylindrical flow chamber of the disk cutter 3 is combined with the flow chamber 2 of the valve body 1 and the liquid begins to flow under pressure into the filled e bone. If we do not take into account the friction of the disk cutter in the grooves of the housing, in the general case, we can write down the equilibrium condition of the system (3)

SipK mtr + Sp), (1)

where SNP is the weight of the discharge pipe;

Smtr - the weight of the measuring tube;

Gn is the weight of the float.

The buoyancy force (Archimedean force) acting on the system from the side of the liquid column is

N (V + IS) Sq, (2)

where V is the volume of the float with a rod (tube);

 - the length of the portion of the tube immersed in the liquid;

S is the cross-sectional area of the tube.

If the forces Gn and N are equal, taking into account the action on the tube at the phase interface of the tension surface, we can write

l (m-V, p + A) Sp, (3) where A is a constant for a given fluid, taking into account surface tension;

m is the mass of the float and tube.

So, as the measuring tube is calibrated in units of the volume of the filled tank, we can write

V (m-V- /) + A) -Sp, (4)

transforming formula 4 we get

M (+ A) S //, where M is the mass of liquid,

Thus, upon reaching a certain mass of liquid, the float rises, disrupting the equilibrium of the system, i.e. GHn (Gn + GMTp) -N, due to which the drain pipe 4 rises by an angle, turning the disk cutter 3 in the grooves of the body, the flow chamber of which ceases to coincide with the camera body of the valve and thereby stop the fluid from accessing the pressure pipe .

Compared with analogues and prototypes of the claimed device allows:

1) to dispense and automatically turn off the crane according to the mass of fuel, depending on the need;

2) has a simpler and more reliable design;

3) more technologically advanced in assembly and maintenance,

Claims (2)

1. The dispensing valve comprising a housing with a valve and a drain fitting mounted for movement, characterized in that, in order to reduce fuel loss and simplify the design, the drain nozzle is mounted for movement in a vertical plane relative to the housing, equipped with a measuring tube mounted at its end with a float fixed to it by means of clamps with the possibility of axial movement, and the valve is located at the junction of the drain pipe with the housing. 2. The crane according to claim 1, characterized in that the valve is made in the form of a disk separator with a L-shaped channel. g TTTSWZZZZZ