SU1703140A1 - Starting device - Google Patents

Description

The invention relates to fire fighting equipment, in particular, to shut-off and discharge relief devices used in automatic fire extinguishing installations (AUP) for controlling valves.

The aim of the invention is to improve the reliability of the device at high pressure.

Figure 1 shows the proposed device, the cut; 2 shows a hinge joint, a slit; Fig. 3 shows the device in the open position; Fig. 4 shows the connection diagram of the device;

The device includes a housing 1 with a spring-loaded slider 2, a shutter 3 in the form of a glass with a sharp edge 4 pivotally connected to the rod 5 and a slider, a sleeve 6 with an elastic seal 7 which are placed on the side of the waste hole 8, a membrane 9 and a drive 10 with a rod 11, electromagnet 12, measles 13, button 14 handwheel.

The device is mounted on the lid 15 of the fire extinguishing valve. The discharge open 8 is in communication with the motive chamber 16, which is filled through the bypass duct 17 and the throttle 18 ...

In the event of a fire, voltage is applied to the drive electromagnet 12, the measles 13 pushes the rod 11 and the spring-loaded slider 2, the inclination of which is the rod 5. which loses the position of the fixed stop (goes dead center) (FIG. 3). the shutter 3 under the action of pressure of water and the rod rises, opening the vent hole, the rod continues to move under the action of water, the maximum opening of the vent hole. Water flows out of the booster chamber and valve 19 starts. At the same time, even when the voltage is turned off, the device will not close until all the water has drained from the booster chamber. Then the water flows from the cavity A of the valve. After discharging water from the trigger chamber,

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e is weakly fed through pipe 17 and drsx — pic 18. After extinguishing, the drive is turned off by the gps. the chilled slider 2 is shifted to the right and lowered (with the pops) empty valve 3, the edge 4 of which is on-seal 7 and hermetically neptr.pysaeT waste hole 8. The water does not prevent the closure of the shutter, because behind: the creature is empty and the pressure in its cavity due to throttles and weak recharge increases honey, depending on the pressure, water and the volume of the shutter. - no water lock in the device (s, D 15 at a pressure of 2-6 kg / cm) will be about proceed 2-5 times slower than slam shutter.

If necessary, the device is started by hand-held backup by pressing the button 14, which causes the movement of the lock and the start. The device can be used as a valve with manual and remote control,

Claims (1)

Invention Formula A triggering device comprising a housing with a vent hole blocked by a bolt connected to the drive by means of a mechanism having a spring, characterized in that increase the reliability of the device at high pressure, it has a sleeve installed in the housing, the mechanism is made in the form of a spring-loaded slider interacting with a drive, and a rod pivotally connected to the gate and to the central part of the slide, whose axis is parallel to the axis of the drive and perpendicular to the axis of the gate and the rod, the bolt is made in the form of a hollow thin-walled glass, facing the cavity to the waste hole. 1 9 10 v 12 V u 5U /five X / , AND I . Q & -w about with Js. ABOUT 3