RU181287U1 - Solenoid valve - Google Patents

Abstract

The inventive utility model relates to the field of pipeline valves and can be used in sectional drenchers to prevent emergencies in the piping of fire extinguishing systems, mainly using high pressure. An electromagnetic valve including an electromagnet, a housing in which the input and output channels and the control cavity are formed, a shut-off element interacting with a spring-loaded electromagnet armature, characterized in that there are seals in the control cavity, between which a stop sleeve with holes is installed coaxially with the output channel, a stop the body is located in the thrust sleeve with the possibility of longitudinal movement relative to it and the seals. The technical result of the claimed utility model is to increase the reliability of the valve by reducing the possible leakage of the working medium during its operation, while simplifying the design. 2 ill.

Description

The inventive utility model relates to the field of pipeline valves and can be used in sectional drenchers to prevent emergencies in the piping of fire extinguishing systems, mainly using high pressure.

Known solenoid valve [patent for invention RU No. 2200266, IPC F16K 31/02, publ. 03/10/2003], containing an electromagnet, a housing, a control cavity, part of which is made of variable cross-section, a main locking element with a discharge channel blocked by a spring-loaded armature located above the discharge channel, a loading channel whose passage area is smaller than the area of the discharge channel, characterized in that the main locking body is made in the form of a sleeve with an elastic split ring forming a slotted feed channel, and the elastic split ring can be made with a slotted feed channel scrap of various passage area.

The technical result of the claimed utility model is to increase the reliability of the valve by reducing the possible leakage of the working medium during its operation while simplifying the design.

The problem is solved due to the fact that the electromagnetic valve includes an electromagnet, a housing in which the input and output channels and a control cavity are formed, a shut-off element interacting with a spring-loaded electromagnet armature, according to this utility model, there are seals in the control cavity, between which are aligned with the output a thrust sleeve with holes is installed in the channel, the locking member is located in the thrust sleeve with the possibility of longitudinal movement relative to it and the seals.

Thus, it is possible to increase the reliability of the valve by reducing the possible leakage of the working medium, since the thrust sleeve prevents the extrusion of the seals when the locking element moves relative to them during the operation of the valve. At the same time, the valve design is simplified by simplifying and reducing the number of structural elements.

The essence of the claimed utility model is illustrated by the following drawings and description.

In FIG. 1 shows a solenoid valve in a closed state.

In FIG. 2 shows the solenoid valve in the open state.

1 - electromagnet;

2 - case;

3 - a locking organ;

4 - anchor;

5 - spring;

6 - input channel;

7 - output channel;

8 - control cavity;

9 - washer;

10 - a sealant;

11 - a sealant;

12 - thrust sleeve;

13 - holes in the thrust sleeve;

14 - a nut;

15 - handle mechanical drive;

16 - control sensor position of the locking element;

17 - reciprocal recess.

The electromagnetic valve (Fig. 1, 2) includes an electromagnet 1 with a winding and a core, a valve body 2, inside which a shut-off element 3 is installed, interacting with the armature 4 of the electromagnet 1, equipped with a spring 5.

An input channel 6 and an output channel 7 are formed at right angles to each other in the housing 2, between which a control cavity 8 is formed.

In the control cavity 8 there is a washer 9, seals 10 and 11, between which a thrust sleeve 12 with holes 13 is installed coaxially to the output channel 7.

Seals 10 and 11 are located at the ends of the thrust sleeve 12 and are designed to seal the locking element 3 during operation of the valve. Seals 10 and 11 are hydraulic cuffs, which can further increase the degree of sealing of the locking element 3.

The holes 13 in the thrust sleeve 12 can be located perpendicular to its axis or at a different angle and are designed to pass the working stream from the input channel 6 to the output channel 7. The cross-sectional area of the openings 13 is chosen not less than the cross-sectional area of the input channel 6.

The combination of the washer 9, the thrust sleeve 12, the seals 10 and 11 forms a saddle, which blocks the working flow from the inlet channel 6 to the output hatch 7. Using the shut-off element 3, the shut-off element 3 is located in the thrust sleeve 12 with the possibility of longitudinal movement relative to it and the seals 10 and 11 and is made in the form of a continuous cylinder with a rounded end, interacting with its other end with an anchor 4, for example, by means of a nut 14. The nut 14 is made in such a form as to ensure interaction between the locking member 3 and the anchor 4 with a sample The name of the technological gap. For example, the axial hole of the nut 14 can be made of variable cross section, and the corresponding end face of the locking element 3 of increased diameter. In this case, the locking member 3 is inserted into the nut 14, and then the nut 14 is twisted to the anchor 4.

The electromagnetic valve may be equipped with a mechanical actuator, which includes a handle 15, a rod connected to it (not shown in the drawing) with pressure washers (not shown in the drawing) and a cam (not shown in the drawing). The mechanical actuator is designed to manually open the valve in the absence of power on electromagnet 1 (emergency mode).

In the locking body 3 can be formed discharge channel (not shown), providing a reduction in hydraulic shock of the working fluid when opened.

The locking body 3 can be made cylindrical with a streamlined end.

At least one control sensor 16 of the position of the locking member 3 located in the housing 2 with the possibility of monitoring the position of the locking member 3 and mounted vertically, horizontally or at an angle anywhere along the spring-free part of the locking member 3 can be introduced into the valve structure 5 and from the thrust sleeve 12 with seals 10 and 11. On the body of the locking element 3 in a place corresponding to the location of the said sensor 16, at least one response element, for example, a recess 17, is formed for interaction I am with sensor 16, since non-contact sensors are sensitive to changes in the conductivity of the medium, and contact sensors require the interaction of their sensitive element and shut-off element 3. Sensor 16 can be built both on the basis of non-contact measurements and contact ones. Therefore, as the sensor 16, an induction, optoelectronic and other non-contact sensor or mechanical contactor with an electric, hydraulic or pneumatic external drive can be used. The most preferred in terms of reliability, reducing the size of the structure and ease of use is an induction sensor.

The solenoid valve operates as follows.

The normal position of the valve is closed (Fig. 1). In this position in the inlet channel 6 and the control cavity 8 is a working fluid under pressure. When applying voltage to the winding of the electromagnet 1 under the action of the arising magnetic forces, the armature 4, overcoming the force of the spring 5, moves, opening the passage of the working fluid through the holes 13 in the thrust sleeve 12 (Fig. 2).

If there is no voltage on the electromagnet 1, but if it is necessary to supply a working fluid from the input channel 6 to the output channel 7, the valve is brought into the open position by means of a mechanical actuator.

The locking element 3 is held in open position due to pressure on its end face of the working fluid.

When the voltage is removed from the winding of the electromagnet 1, the magnetic forces disappear, and under the force of the spring 5, the anchor 4, pushing the shut-off element 3, blocks the passage of the working fluid through the holes 13 of the sleeve 12. The shut-off element 3 enters the seals 11 and 12 and the valve closes.

The response time (opening and closing) of the valve can be adjusted manually or by software.

The inventive design can be manufactured on conventional technological equipment using conventional tools.

Claims (1)

An electromagnetic valve including an electromagnet, a housing in which the input and output channels and the control cavity are formed, a shut-off element interacting with a spring-loaded electromagnet armature, characterized in that there are seals in the control cavity, between which a stop sleeve with holes is installed coaxially with the output channel, a stop the body is located in the thrust sleeve with the possibility of longitudinal movement relative to it and the seals.

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