RU193757U1 - Two-way solenoid valve - Google Patents

Abstract

A two-way solenoid valve is proposed, including a body, input and output channels of the body, an electromagnet, an armature, a hinge and a ball blocking the channels, spring-loaded to the seat of the body. In this case, the anchor, under the influence of an electromagnet solenoid, acts on a spring-loaded ball, thereby opening or blocking the input and output channels. In addition, an additional plate is introduced, mounted pivotally, which is affected by the anchor, and which has the ability to move by shifting a spring-loaded ball from the saddle, thereby opening or blocking the input and output channels. EFFECT: increased reliability of flow shutoff under conditions of a large pressure drop. 1 s.p. f-ly, 2 ill.

Description

Description

The proposed utility model relates to shut-off and control devices, in particular for remote control of methanol consumption in its supply lines to the gas stream by means of time-pulse control, as well as for remote shutdown of the inhibitor stream.

Known valve universal patent of Russia No. 2405998 from 12/10/2010. This valve includes, located in a hollow cylindrical body: a locking element in the form of a ball, a seat and a spring. At the same time, in the lower part of the body with the help of the push sleeve, a stop is fixed, having a pressure end in the upper part, the ball interacting with the seat, is installed in the valve block, pressed by the threaded sleeve, which can slide in the through hole of the threaded sleeve and the body along the vertical axis. The emphasis and valve block in the initial position are located with a guaranteed gap between the pressure end face of the emphasis and the ball.

The disadvantage of this valve is the insufficient shutoff reliability of the valve at high flow pressures.

The closest source is Russian patent No. 132154 dated 09/10/2013, in which a two-way control valve is disclosed, including a housing, an housing input channel, a housing output channel, an electromagnet (may be a solenoid), an armature, a hinge, and a ball that spans the channels and is spring-loaded to the housing seat . In this case, the armature, under the influence of the solenoid, acts on the spring-loaded ball thereby opening or closing the input and output channels.

The disadvantage of this valve is also the lack of reliability of the valve at high flow pressures.

The technical result of the utility model is to increase the reliability of flow shutoff under conditions of a large pressure drop.

The technical result is achieved by the fact that the two-way solenoid valve includes a housing, an input channel of the housing, an output channel of the housing, an electromagnet, an armature, a hinge and a ball that spans the channels and is spring-loaded to the seat of the housing. In this case, the anchor, under the influence of an electromagnet solenoid, acts on the spring-loaded ball thereby opening or closing the input and output channels. Also added is a plate mounted pivotally, which acts on the anchor, and which has the ability to move, shifting the spring-loaded ball from the saddle, thereby opening or closing the input and output channels. Also, a channel system is made in the housing, connecting: the input channel of the housing, the lower cavity, where the ball overlapping the channels is installed, and the upper cavity, where the plate is installed.

The essence of the claimed technical solution is illustrated by drawings, where

figure 1 shows the assembly drawing of the proposed valve.

figure 2 shows a drawing of the housing of the proposed valve,

figure 3 shows the location of the channels of the housing.

In the figures, the positions indicate the following details.

1 - housing

2 - saddle,

3 - ball

4 - core body,

5 - core

6 - solenoid,

7 - anchor,

8 - cable entry,

9 - fitting

10 - throttle,

11 - sleeve

12 - nut

13 - screw

14 - spring,

15, 16, 17 - sealing ring,

18, 19, 20 - gasket,

21 - cork

22 - emphasis

23 - cork

24 - pusher

25 - lever

26 is a fragment of a threaded hole for the inlet fitting,

27 - hole for the flow of the working medium from the inlet fitting into the lower cavity of the valve;

28 - hole connecting the lower and upper cavity of the valve.

The proposed valve shown in figure 1 works as follows.

The flow of the working medium through the valve is controlled by applying to the solenoid pos. 6 a direct current control signal with a rated voltage of 24 V and a duration of at least 0.5 s.

In the initial state, in the absence of a control signal to the valve solenoid, the valve is in the “closed” state, the ball pos. 3 is pressed against the seat pos. 2 using the spring pos. 14 and blocks the flow of the working medium.

When applying a control signal to the valve solenoid, the armature pos. 7 moves down and by means of the pusher pos. 24 and the lever pos. 25 moves the ball pos. 3 from the saddle pos. 2 overcoming the force of the spring pos.14 and opens the hole for the flow of the working medium through the valve. The valve switches to the “open” state and the working medium flows through the valve during the entire time of the control action.

Changing the duration of the control action, respectively, achieve the required valve throughput.

The total valve capacity in the open state can be increased or decreased by replacing the throttle pos. 10 of the spare parts.

The novelty of the design is that this solenoid valve is able to perform the function of time-pulse control, as well as to remotely block the flow of the inhibitor under conditions of a large pressure drop (up to 25 MPa) due to the "unloaded" design of the shut-off element, in particular the ball.

"Unloading" of the locking body, see figure 3 is provided by a system of channels connecting the lower and upper cavities of the housing 1.

The working medium through the inlet nos. 9 through openings 26, 27, 28, indicated in the II-I section, at the same time fills the lower and upper cavities of the solenoid valve, thereby eliminating the pressure drop across the shut-off element (ball). In the absence of a pressure differential between the lower and upper cavities of the solenoid valve, the required force to open the shut-off element corresponds to a slight spring compression force pos. 14, thereby preventing rapid wear and malfunction of parts involved in the movement of the locking member when it is opened / closed.

The long service life of the valve is ensured by parts of the locking part made of VK-8 solid sintered alloy (saddle pos. 2) and steel ШХ15 with chrome-plated coating (ball pos. 3).

Claims (2)

1. A two-way solenoid valve, comprising a housing, input and output channels of the housing, an electromagnet, an armature, a hinge and a channel that spans the channels, spring-loaded to the housing seat, while the armature, under the influence of an electromagnet solenoid, acts on a spring-loaded ball, thereby opening or closing the input and an output channel, characterized in that an additionally inserted plate is mounted pivotally, which is affected by the armature and which has the ability to move, shifting a spring-loaded ball from the saddle, thereby opening or blocking the input and output channels, while in the case a channel system is made connecting the input channel of the case, the lower cavity, where the ball blocking the channels is installed, and the upper cavity, where the plate is installed. 2. The valve according to claim 1, characterized in that the input and output channels of the housing are made in the form of fittings.

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