RU2676824C1 - Return stopper - Google Patents

Abstract

FIELD: machine building.SUBSTANCE: return stopper consists of a hollow body made of a metal or polymer material having holes on both sides for the substance inlet and outlet and pipe threaded connections opposite the holes for tying into the pipeline. Along the entire body, an axis passes on which the component parts are mounted: a turbine, a reduction gearbox, a threaded bushing, a locking diaphragm mounted on a nut having a one-sided working stroke, a return spring, and on the body there is a locking diaphragm seat. Turbine is installed in the flow of the passing substance with the possibility of transmitting torque to the input gear of the gearbox. Gearbox with its output gear is connected with the possibility of transmitting torque to the threaded bushing. Threaded bushing is adapted to exert a braking effect on the nut with a one-sided working stroke and the locking diaphragm attached to it as it moves towards the substance outlet. Spring is made with the ability to create a force on the locking diaphragm, opposite to the passing flow of substance.EFFECT: shut-off diaphragm, when seated on the seat, blocks passage of the substance from the inlet to the outlet.1 cl, 10 dwg

Description

The technical field to which the invention relates: the transportation of substances through pipelines.

BACKGROUND OF THE INVENTION: a sealed, maintenance-free, self-contained device embedded in a pipeline.

I do not know the existence of analogues

Disclosure of the invention: Return limiter in the future device. It is intended to limit the amount of passage of liquids or gases (substances) through the pipeline through the device, - during a normally periodic mode, when the period of movement of the substance - alternates with a complete stop of the movement of the substance through the device or the reverse movement of the substance from the exit to the entrance caused by external control actions, such as the opening or closing of locking equipment on the pipelines of the input or output of the device. The device at each continuous period of passage of a substance through the device from the entrance to the output counts the volume of the substance to the amount of restriction. During the period of continuous passage of the substance from the entrance to the exit through the device and reaching the maximum amount of the passed substance (the limit is laid when the device is manufactured by the characteristics of the turbine and gearbox), that is, with an abnormal, uncontrolled or emergency passage of the substance caused by factors such as human - forgetfulness or intent, technical - failure of external locking equipment on the pipelines of the output inlet, and natural type of cataclysm, the device will fulfill its purpose and produce an ogre Nitsenie (locking) the passage of matter. If during the period of passage of the substance through the device in the direction from the entrance to the output, the volume of the passed substance does not reach the limit, - due to the external control action, the passage of the substance from the entrance to the exit stops or the substance moves back from the exit to the entrance, this mode , being normal for a given point of the pipeline with the substance, and the device with a limit laid down in it during manufacture will not restrict the passage for this point in the pipeline, and in the subsequent period it will completely If the movement of the substance through the device or the reverse movement of the substance in the device from the exit to the entrance is effected - without directly affecting the device, only due to the normal periodic mode of movement of the substance through the device will return the moving parts inside the device to the initial position. In the case of locking the passage of the substance by the device during the passage period, a necessary condition for the further passage of the substance through the device is to eliminate the factor that caused the passage of the maximum volume of the substance in the passage period; - human - impact on the locking equipment, technical - replacement of faulty equipment or natural elimination of the consequences of the cataclysm; - after eliminating the factor that caused locking in the device over time, due to the flow of matter inside the component parts of the device, the pressure will equalize between the input and output, which will result in the return of the moving parts of the device to its initial position.

It is possible to use the device: - to prevent water leaks in everyday life and to eliminate such phenomena as flooding of domestic premises for reasons - I forgot to close the tap, the tap broke and others; - in modern irrigation systems by installing a device with restriction parameters corresponding to one irrigation to exclude such phenomena as excess of the required water costs; - it is possible to use the device in other areas and with other substances. The word returnable in the name here has the meaning of - that after locking the passage by the device - blocking the accident by the device - to return it to its initial state, it can be said to unlock the device; - there is no need to take special actions; it is only necessary to find and eliminate the emergency reason for locking the device - a valve forgotten by an open valve or replace a failed shut-off device. The advantages include autonomy - lack of power supply, and maintenance-free - the absence of any controls.

Brief Description of the Drawings: The following drawings are presented in the drawings album:

FIG. 1 Appearance of the device side view.

FIG. 2 Appearance of the device front view - substance inlet

FIG. 3 Appearance of the device; rear view - substance exit

FIG. 4 Longitudinal section - the initial position.

FIG. 5 Longitudinal section - intermediate position.

FIG. 6 Longitudinal section - final position.

FIG. 7 Cross section view of a turbine.

FIG. 8 Cross section view of the gearbox.

FIG. 9 Cross section view of the locking membrane.

FIG. 10 Bushing with external thread and nut with one-way running.

The following elements of the device are shown in the drawings:

1 building

2 axis

3 shut-off membrane

4 window for monitoring the position of the locking membrane

5 thread for connecting the device to the pipeline on both sides

6 windows for the passage of matter through devices in the front and rear

7 groove to prevent rotation of the gear housing on the axis

8 turbine

9 gear

10 primary gear reducer on the sleeve

11 secondary gear wheel on the sleeve

12 return spring

13 seat membrane

14 sleeve with external thread

15 single-acting nut

16 spring threaded stops

The implementation of the invention: Design - the device consists of a round (optional) metal or polymer body - 1, with the ends of the standard thread - 5 for connection with pipelines. To control the position of the shut-off membrane, a window - 4 made of transparent material of FIG. 1. Along the entire body there passes axis - 2, on which the components are mounted: turbine - 8, gearbox - 9, locking membrane - 3, and return spring - 12, FIG. 4. The axis is attached to the housing with end caps having windows - 6 for the passage of the substance, FIG. 2 and FIG. 3.

The principle of operation - when a substance passes through a device, it passes through a turbine - 8 and starts to rotate it. Further, the flow of matter enters the locking membrane - 3 and exerts pressure on it towards the outlet. The locking diaphragm - 3 is connected to a nut having a one-sided working stroke - 15. At the same time, the turbine - 8, rotating from the flowing stream, rotates the sleeve with the primary gear of the gearbox - 10. The gearbox reduces the speed of rotation (number of revolutions) to the one set during manufacture. The secondary gear - 11 rotates the output sleeve with an external thread - 14, into which the nut having a one-sided working stroke abuts - 15. The nut - starts with the locking diaphragm - 3 on which the pressure is exerted towards the outlet moves with braking to the exit - braking of the locking diaphragm - 3 occurs due to the abutment of a nut with a one-way stroke - 15 on a sleeve with an external thread - 14 of FIG. 5 shows an intermediate position. In the case when under external influences, such as opening - closing shut-off equipment on the device inlet pipelines, the quantity of the passed substance in the passage period reaches the limit value (it is laid down during the manufacture of the device by the characteristics of the turbine and gearbox) - the shut-off membrane - 3 sits on the saddle of the shut-off membrane - 13 and closes the passage for the substance through the device in the direction of entry to exit of FIG. 6 The limit quantity depends on the number of turns that the sleeve with the external thread will produce from the beginning of the passage of the substance in the forward direction to the locking point, the number of turns will need to be multiplied by the gear ratio and multiplied by the amount of substance passing by one revolution of the turbine. In the case when, under external influences, such as opening the shut-off equipment on the device’s inlet pipelines, the amount of passed substance in the passage period does not reach the limit value and the passage of matter in the current period stops, the turbine-8 will stop rotating, the inlet and outlet pressure will equalize and will be absent on the shut-off membrane. The locking membrane - 3, together with a nut having a unilateral working stroke - 15, and free return under the action of a return spring - 12 returns to its initial position. In the case of locking the passage of the substance by the device, the return membrane - 13 will return to its initial position without disassembling the connection of the device to the pipeline, provided that the pressure at the inlet and outlet of the device is equalized or the substance moves in the opposite direction. The pressure equalization at the inlet and outlet of the device will occur if the passage of the substance at the inlet or outlet of the device is closed, as well as in the absence of substance in the device. When the substance moves in the opposite direction from the outlet to the entrance, the locking membrane - 3 will go into the initial position under pressure from the outlet to the entrance, spring threaded stops - 16 will be outside the thread on the sleeve with an external thread - 14, reverse rotation of the turbine - 8 and reverse rotation of the sleeve with an external thread - 14 will not affect the nut having a one-sided stroke - 15, and at the same time, the passage of the substance in the opposite direction from the exit to the entrance will not be limited by the device. The groove - 7 is designed to prevent rotation of the gear on the axis of FIG. 4. For turbine blades - 8, the necessary condition for the inclination of the blades when passing the substance in the working direction of FIG. 8, rotation of the sleeve with an external thread - 14, in the direction of the stroke of the nut with a one-way stroke - 15. In FIG. 9 further shows the position of the gearbox - 9, in cross section. In FIG. 10 shows the design of the sleeve with an external thread - 14, paired with a nut having a unilateral working stroke - 15, and spring threaded stops - 16 on this nut.

A small partial passage of the substance in the locked end position of FIG. 6 between the axis - 2 and the sleeve - 14 and between the sleeve - 14 and the nut - 15 is necessary in case of locking the passage of material inside the device - and the subsequent need to return the device to its original position after eliminating the factor by which the device was locked to equalize the inlet pressure and the output of the device, followed by the return of the membrane - 3 under the action of the return spring - 12 to its initial position. The material from which it is necessary to make the component parts of the device must be mechanically strong, wear-resistant and corrosion-resistant to the substance for which the device is intended - these are metals and polymers.

Claims (1)

A return stopper, consisting of a hollow casing made of metal or polymer material, having material inlet and outlet openings on both sides and pipe threaded connections opposite the insertion holes in the pipeline, along the entire casing there is an axis on which the components are mounted: a turbine, reducing gear, threaded bushing, locking diaphragm mounted on a nut with one-way travel, return spring, and the housing has a locking diaphragm seat, the turbine is installed in the current of the passing substance with the possibility of transmitting torque to the input gear of the gearbox, the gearbox of the output gear is connected with the possibility of transmitting torque to the threaded bushing, the threaded bushing is made with the ability to exert a braking effect on the nut with a one-way stroke and the locking membrane attached to it when it is movement towards the outlet of the substance, and the return spring is configured to create a force on the locking membrane, opposite to the passing flow of the substance, the locking me brane when landing on the seat locking membrane substances produces locking passage from inlet to outlet.

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