RU2156708C1 - Tank water filler - Google Patents

Abstract

FIELD: railway transport; water supply systems. SUBSTANCE: proposed device has communicating water filling pipe 3, valve gear and tank filling control device including tube 9 communicating with overflow pipe 8. Tube 9 is provided with hole 18. EFFECT: provision of required water level in tank irrespective of pressure of water supplied by main line. 6 cl, 2 dwg

Description

 The invention relates to water supply systems and may find application in various fields of the national economy, in particular in railway transport.

 A device for refueling with water is known (RF Patent N 2117595 from 07.20.98), containing a water-filling pipe facing the outside and a valve device associated with the pipe including an annular valve rigidly connected to a reflector located opposite the water outlet to the tank, which is located in cavity of the float carrying the valve seat, with the formation of an annular tank gap relative to the inner surface of the float and with the possibility of axial movement relative to it, a device for monitoring the completeness water tank, comprising a hollow body rigidly connects the annular valve with water filled pipe and giving water-filled tube with a cavity formed by the reflector and the inner wall of the float, and a choke disposed in the housing and communicating with the overflow pipe.

 A disadvantage of the known device is the unstable operation at high water pressures and the incomplete filling of the tank with water during the control outflow of water from the overflow pipe.

 The technical problem to which the invention is directed is to provide the necessary water level in the tank, regardless of the pressure of the water coming from the main pipeline. The need for high water pressures in the main pipelines is due to severe frosts that instantly freeze the incoming water into the connecting rods even before the water enters the tank car.

 This problem is solved due to the fact that in the device for refueling the tank with water, containing a water filling pipe connected to each other, a valve device and a device for monitoring the completeness of filling the tank with water, including a pipe connected to the overflow pipe, the latter is made with an opening, and also with slot at the end.

 In addition, the device can be equipped with at least one filter, which is made in the form of a conical spring and installed in the fitting.

 The device can be equipped with two or more water filling pipes with a valve box with valves, each of which includes a washer sequentially located on the stem and pressed against each other, a flat annular elastic element, a ring, a disk elastic element and a nut, the washer and nut made with protrusions in contact with the ring.

 The essence of the device is illustrated by drawings.

 In FIG. 1 shows a tank connecting battery with a device prepared for installation on a car. In FIG. 2 - valve box valve design.

 A device for refueling a tank with water consists of a valve box 1 with two fittings 2, designed for installation and fastening on water filling tubes 3 with screws 4 and retaining bars 5. On the fittings 2, two spring-loaded valves 6 are placed inside the valve box 1, each of which can be in open or closed position, depending on which side the car is refueling with water. A nipple (throttling element) 7 is passed through the bottom of the valve box 1 to connect the upstream cavity with the overflow pipe 8 by a pipe 9 with a tip 10, which can be made flexible. The tube 9 is mounted on the overflow pipe 8 with clamps or wire 11, forming an alarm signaling the end of filling the tank with water. A hollow column 12 with a valve 13 is located on the valve tube 1. A reflector 14 is fixedly mounted on the valve with a working cylinder 15 having a saddle 16 movable relative to its axis, and a float 17 is dressed and fixed on top.

 The device operates as follows. When water is supplied to the tank through one of the water filling pipes 3, the valve 6 of the valve box 1 opens under water pressure and connects the cavities of the valve box 1 of the reflector 14, the working cylinder 15 and the tank. Through the annular gap formed by the valve 13 and the seat 16, the incoming water is discharged into the tank. When the required water level is reached in the tank, the float 17 with the working cylinder 15, moving upward, reduces the annular gap between the valve 13 and the seat 16 of the working cylinder 15. The decrease in the flow area creates water pressure in the working cylinder 15. As a result, water through the annular gap between the walls the reflector 14 and the working cylinder 15 enters the cavity between the bottom of the reflector 14 and the bottom of the working cylinder 15, creating sufficient force for contact of the seat 16 with the valve 13. The flow of water into the tank stops. At the same time, water from the valve box 1 through the nipple 7 and the pipe 9 is sent to the overflow pipe 8. A thin stream of water under the wagon indicates the completion of filling the tank with water.

 In some cases, due to the high pressure of the water supplied to the tank, it is possible to leak water into the pipe 9, and from it into the overflow pipe 8, signaling that the tank is filled with water, which, however, is not yet filled. To eliminate this situation, an opening 18 is provided through which the leaked water is discharged into the tank and does not enter the overflow pipe 8.

 If all the water entering the pipe 9 does not have time to pass through the hole 18, a slot 19 is provided in the pipe 9, made at its end (on the tip 10). Water passes through the slot and enters the tank.

 When the tank is completely filled with water, water begins to flow into the overflow pipe and the tank refills with water.

 To increase the uptime of the device, it is advisable to use a coarse filter (not shown in the drawing) and a fine filter.

 The function of the fine filter can be performed by a conical spring, which along with this function can reduce the possible ripple of the water supplied to the water filling pipe.

 To improve the efficiency of the valve box, the valve is made on the stem 20, on which the washer 21, the flat annular elastic element 22, the ring 23, the elastic disc element 24, the nut 25 are fixed to each other, the washer 21 and the nut 25 are made with protrusions, in contact with the ring 23 to provide the necessary compressive forces acting on the elastic elements.

 In the process, the elastic elements interact respectively with the end face and the inner surface of the nozzle, completely eliminating the ingress of water into another water filling pipe, as the pressure in the valve box compresses the elastic elements to the corresponding surfaces of the fitting.

Claims (6)

 1. A device for refueling a tank with water, comprising a water filling pipe interconnected, a valve device and a device for monitoring the completeness of filling the tank with water, including a pipe connected to the overflow pipe, characterized in that the pipe is made with a hole.  2. The device according to claim 1, characterized in that the end of the pipe in communication with the overflow pipe is made with a slot.  3. The device according to claim 1 or 2, characterized in that it is equipped with at least one filter.  4. The device according to claim 3, characterized in that the filter is made in the form of a conical spring.  5. The device according to claim 3 or 4, characterized in that the filter is installed in the fitting.  6. The device according to claims 1 to 5, characterized in that it is equipped with a valve box with valves, each of which includes a washer sequentially located on the stem and pressed against each other, a flat annular elastic element, a ring, a plate elastic element and a nut, moreover, the washer and nut are made with protrusions in contact with the ring.

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