RU2690890C1 - Reusable shut-off and starting device of gas fire extinguishing installation - Google Patents

Abstract

FIELD: manufacturing technology.SUBSTANCE: invention relates to valve devices for pneumatic systems with incombustible gas and can be used, in particular, in balloon systems of fire extinguishing with inert gas. Created technical solution, due to combination of its essential features reflected in the claim, allows to produce the specified result by making the inlet connection of the housing of the device on one axis with the housing, and outlet branch pipe – with possibility of attachment to it of device for filling of emptied container with new portion of inert gas, and also due to execution in through bottom of breech bar of through groove, directly connecting pressure chamber of device with excitation, and, further, by making the valve itself and its seat in the inlet pipe with the possibility of forming a force of action of a new portion of gas on the gate for filling it with a depleted container, lifting the gate above the seat for transporting this portion of gas from the drencher chamber of the outlet branch pipe of the device into the injection chamber of its inlet branch pipe. Supply of the device with the other appliance for control over the serviceability of the shut-off device, detachably connected to one of the device branch pipes, allows improving its reliability. Providing the shut-off and start-up device with a device for controlling pressure of inert gas in the reservoir, for example, in the form of a pressure gauge or an electronic sensor, enables to control the presence of pressure in the capacity of the device and its value, including remotely. Any of the drives, electromagnetic, or pneumatic, or hand-held, can be used as a drive of the device to ensure operation of the device in different conditions.EFFECT: technical result achieved by invention consists in provision of periodic filling of device capacity with new portion of inert gas after its emptying without its dismantling and actuator switching, thus reducing time costs during fire extinguishing for refilling of this capacity with new portion of gas, as well as high reliability, durability of the device as a whole and efficiency of its use.4 cl, 6 dwg

Description

The invention relates to valve devices for pneumatic systems with non-combustible gas and is applicable, in particular, in balloon systems for extinguishing with an inert gas.

A locking-starting device for a gas extinguishing installation is known, comprising a cylindrical body with an axial channel; a pressure vessel associated with it; associated with it are two diametrically opposed nozzles: an inlet nozzle with a pyro node installed in it, creating additional pressure in the outlet nozzle with gas combustion products, and an output nozzle with a broken through membrane installed in it (Invention patent RU 2179872 C2, class A62C 37/36, published 27.02.2002).

This known device has a simple robust design.

The disadvantage of this known device is the need to replace the destroyed membrane after each actuation of the device, as well as the impossibility of filling the emptying-starting device with its emptied tank, which requires periodic disconnection from the starting-up device and refueling on the side, which leads to a decrease in reliability and durability shut-off in general.

Known closest to the claimed invention, the locking device of the gas extinguishing installation, comprising a cylindrical body with an axial channel, an incentive chamber inside and with two nozzles angled to each other, with one coaxial body with a gate seat: with an inlet pipe with a pressure chamber in it, connected with the housing stimulus chamber and with a container filled with an inert gas under pressure with its docking port connecting it with the inlet manifold; as well as with an outlet nozzle with a drencher camera in it; located in the housing on its axis is a movable spring-loaded gate in the form of a glass, which overlaps with its bottom the valve seat and keeps the nozzle in the initial state of the device with an unused drive by acting on it by a combination of forces: one force from inert gas pressure and the other from pressure its springs, corresponding to the strength of its elasticity, and when activating the drive that controls the pilot channel, formed by the combination of all open channels and grooves in the device associated with the stimulus chambers a device; a cover closing the end of the body with an axial hole and a movable valve placed in it that controls the movement of the shutter by forming its channel in the cover to allow inert gas to flow between the valve and the cover opening to atmosphere; an actuator with its housing and an adapter sleeve in it with radial drainage holes that form, together with the opposite end of the lid, a channel for the release of inert gas into the atmosphere, with its movable anchor triggered by a control signal and a spring-loaded pusher acting on the movement of the valve in the lid (Patent for an invention No. 2411976 C1, cl. A62C 37/08, published on March 18, 2010)

This is the closest to the claimed invention, the technical solution ensures reliable fixation of the valve in the open and closed states, i.e. respectively: in operation mode and in standby mode.

The disadvantage of this locking device, closest to the claimed invention, is the impossibility of its use to fill the empty tank with a new portion of gas, requiring periodic disconnection of it from the locking device for its refueling on the side, which leads to time-consuming when extinguishing the vessel New portion of gas, as well as to reduce the reliability and durability of the valve as a whole and, as a consequence, the inefficiency of its use.

The technical result achieved by the invention is to ensure periodically refilling the device’s capacity with a new portion of inert gas after emptying it without dismantling it and turning on the drive, thereby reducing the time spent on extinguishing the capacity of this capacity with a new portion of gas, as well as improving reliability and durability devices in general and the effectiveness of its use.

The technical result is achieved by the fact that in a reusable locking-starting device for a gas fire extinguishing installation comprising a cylindrical body with an axial channel, an incentive chamber inside and with two branch pipes angled to each other, with one coaxial body with a gate saddle: with an inlet branch pipe with a pressure chamber in it, which is connected both with the stimulus chamber of the case and with a container filled with an inert gas under pressure, with its docking port connecting it with the inlet nozzle; as well as with an outlet nozzle with a drencher camera in it; located in the housing on its axis is a movable spring-loaded gate in the form of a glass, which overlaps with its bottom the valve seat and keeps the nozzle in the initial state of the device with an unused drive by acting on it by a combination of forces: one force from inert gas pressure and the other from pressure its springs, corresponding to the strength of its elasticity, and when activating the drive that controls the pilot channel, formed by the combination of all open channels and grooves in the device associated with the stimulus chambers a device; a cover closing the end of the body with an axial hole and a movable valve placed in it that controls the movement of the shutter by forming its channel in the cover to allow inert gas to flow between the valve and the cover opening to atmosphere; an actuator with its housing and an adapter sleeve in it with radial drainage holes that form, together with the opposite end of the lid, a channel for the release of inert gas into the atmosphere, with its movable anchor triggered by a control signal and a spring-loaded pusher acting on the movement of the valve in the lid, ... inlet the device is made on the same axis with the case, and the outlet is made with the possibility of attaching to it a device for filling the empty tank with a new portion of inert gas and at the bottom of the gate glass a through groove is made that directly connects the pressure chamber with the stimulus, while the gate itself and its saddle are made with the possibility of their surfaces forming the resultant impact on the flow of a new batch of gas for filling the empty spring of the gate and raising the gate above the saddle for transporting this portion of gas from the deluge chamber of the device outlet to the discharge chamber of its inlet.

Providing a starting device with a device for controlling the pressure of an inert gas in a vessel, for example, in the form of a pressure gauge or an electronic sensor, allows you to monitor the presence of pressure in the device's tank and its value, including remotely, and thereby increase the reliability of the device.

Using a nipple as a valve with a movable spring-loaded axis, which interacts with the actuator pusher when a signal is applied to it, allows simplifying its design.

Use as a drive device of any of the drives: electromagnetic, or pneumatic, or manual allows you to ensure the operation of the device in different conditions.

The drawings show the design of a reusable gas fire extinguishing device:

FIG. 1 - Reusable shut-off starting device with an electromagnetic drive in the initial closed state with a container filled with an inert gas.

FIG. 2 - Reusable shut-off device in the open state with a container filled with an inert gas.

FIG. 3 - Reusable locking-starting device in the open state when filling the empty tank with inert gas.

FIG. 4 is a view A of FIG. 3

FIG. 5 - Nipple.

FIG. 6 - Reusable stop-starting device without electromagnetic actuator, top view.

The locking device contains:

- a cylindrical body 1 (Fig. 1) with an axial channel (not shown), an incentive chamber 2 inside and with two nozzles 3 and 4 arranged at an angle to each other:

- coaxial to the housing 1 with an inlet pipe 3 with a bolt saddle 5, with a hollow niche 6 (FIG. 2) in it for gas acting on the bolt when it fills the emptied tank, and with a pressure chamber 7 connected with the tank 8 filled with an inert gas under pressure;

- an outlet nozzle 4 with a deluge chamber 9 in it and with an adapter 10 (FIG. 3) for connecting thereto a device 11 for filling the empty tank 8 with a new portion of inert gas;

- located in the housing 1 coaxially with it a movable valve 12 having the shape of a glass with a bottom 13 (FIG. 1, 2) and a through-groove in it 14 connected to the pressure chamber 7 of the inlet 3, while the outer diameter of the valve at the bottom 13 smaller than the outer diameter of the rest of it, and the transitional part of its outer surface 15 (Fig. 4) connecting the gate parts of different diameters serves as a platform for raising the shutter 12 above its saddle 5 by exposing it to a new batch of gas under pressure when refilling the empty tank with it eight.

- spring 16 (Fig. 1, 2), placed in the glass of the shutter 12;

- closing the end of the housing 1 on the top of the cover 17 with an axial hole;

- placed in the opening of the cover 17 movable nipple 18 (Fig. 1, 2, 5 and 6) with a spring-loaded axis 19 (Fig. 5), which controls the movement of the shutter 12 by forming between the body and the opening of the cover 17 of the channel 20 (Fig. 1.2) to transfer inert gas from the stimulus chamber 2 to the atmosphere;

- an electromagnetic actuator with its housing 21 (Fig. 1, 2) and a transition sleeve 22 in it with radial drainage holes 23 mounted on the cover 17 with a cover 17 formed between its drain holes 23 and the opposite end of the cover 17 of the channel 24 to release the inert gas to the atmosphere ; with a spring-loaded pusher 25, acting on the movement of the axis 19 of the nipple 18; with the anchor 26, triggered by directed to its coil (not specified) control signal;

- injecting a new portion of inert gas device 11;

- a pressure gauge 27 for controlling the pressure of the inert gas in the vessel 8 (FIG. 6) connected to the adapter 10 for connecting the device 11 thereto;

- a safety device 28 with a bursting disc 29 (FIGS. 1, 2 and 6) connected through an opening (not indicated) in the housing 1, made under the valve seat 5 of its inlet 3.

The locking-starting device is provided with seals installed along the inert gas flow, ensuring that they are pressed tightly against the structural elements under the influence of gas pressure, thereby increasing the efficiency of the device.

At the same time, the open state of the shut-off device is characterized by the formation of a pilot channel by the totality of all open channels, channels, connected with the stimulating chamber.

The operating principle of the locking device.

In the initial state in standby mode, the channel between the inlet and outlet nozzles is closed, the spring-loaded pusher 25 of the electromagnetic drive (not specified) is in the upper position fixed by the anchor 26 and does not affect the nipple 18. The latter, however, due to its spring ( not specified) tightly blocks the channel 20 for the flow of inert gas from the stimulating chamber 2 into the atmosphere through the through drainage holes 23 of the transition sleeve 22 of the electromagnetic drive. At the same time, the shutter 12, due to the elasticity of its spring 16 and the pressure of the inert gas flowing through the axial bore 14 in its body into the glass of the shutter 12, is tightly pressed against the saddle of the shutter 5, closing the channel between the pressure chamber 7 in the inlet 3 and the deluge chamber 9 in the outlet 4.

Thus, in standby mode, when the engine is shut off, the valve is characterized by reliability, since provides a tight overlap of the tank 8 with an inert gas under pressure.

This is confirmed by the following inequality:

где:

Where:

- сила упругости пружины 16;

- the elastic force of the spring 16;

Fczz - the force acting on the shutter 12 from above, from the side of the incentive chamber 2.

где:

Where:

Рсз - gas pressure on the shutter 12 from the side of the stimulating chamber 2;

Dg - the diameter of the shutter 12.

- сила, действующая на затвор 12 снизу со стороны напорной камеры 7 и емкости с газом 8.

- the force acting on the shutter 12 from the bottom of the pressure chamber 7 and the tank with gas 8.

где:

Where:

- давление газа на затвор 12 со стороны напорной камеры 7 и емкости с газом 8.

- gas pressure on the shutter 12 from the side of the pressure chamber 7 and the tank with gas 8.

- диаметр седла 5.

- diameter of a saddle 5.

, a

то из этого следует, что и

.However, since the gas pressure on the shutter 12 is the same from different sides, both from the side of the pressure chamber 7 and the tank with gas 8, and from the side of the stimulating chamber 2, i.e

a

then it follows that

.

From the above, we can conclude that inequality (1) is true and it proves that in the initial position of the locking device in the standby mode with an unused drive, its shutter 12 tightly closes the channel between the inlet 3 and the outlet 4 nozzles.

When a control signal is applied to the solenoid coil (not indicated) of the electromagnetic drive, its armature 26 is drawn into this coil, releasing the spring-loaded pusher 25, which in turn affects the axis 19 of the nipple 18, and thus opens the channel 24 to inert flow gas between the surface of the nipple 18 and the surface of the opening of the cover 17 up into the atmosphere through the drainage holes 23 of the adapter sleeve 22, reducing, in this case, the pressure of the inert gas to the shutter 12 from the stimulating chamber 2.

As a result, the shutter 12 rises from its saddle 5 and opens the passage between the inlet 3 and outlet 4 nozzles, thereby ensuring the free flow of inert gas under pressure above atmospheric, from the tank with this gas 8 into the deluge chamber 9 of the exhaust nozzle 4 to extinguish the fire .

Thus, by turning on the drive, a pilot channel is formed in the device, which bleeds the pressurized gas from the stimulus chamber 2 into the atmosphere and thereby lifts the shutter 12 from its saddle 5, opening the channel between the pressure chamber 7 of the inlet nozzle 3 and the deluge chamber 9 of the outlet nozzle 4 for the passage of gas from the tank 8 to the burning object to extinguish it.

This is confirmed by the following inequalities when the drive is turned on:

- диаметр седла 5.

- diameter of a saddle 5.

After the production of gas from the tank 8 when extinguishing the shutter 12 is lowered onto its saddle 5 by the force of its spring, closing the channel between the nozzles 3 and 4.

For filling the empty tank with a new portion of gas under pressure, a special tool 11 is connected to the outlet 4, which pumps this new portion of gas into the tank 8. Using this device, this gas enters the deluge chamber 9 of the outlet 4, presses on the transitional part 15 of the outer surface of the shutter 12, raises it above the saddle by the pressure of the gas and opens the channel between the outlet 4 and the inlet 5 of the nozzles for the flow of gas from the deluge chamber 9 into pressure chamber 7, and then in the tank 8, filling it completely.

When the tank is filled with neutral gas, the pressure in the chambers: stimulus 2 and pressure 7, is aligned and the shutter 12 is lowered onto its saddle 5, blocking the flow of this gas through the deluge chamber 9 into the pressure chamber 7, and the starting and switching device switches to standby mode.

Thus, the created technical solution, thanks to the combination of its essential features reflected in the claims, allows for the next filling of the emptied device’s capacity with a new portion of inert gas without disconnecting it from the device and filling it on the side, and also without using the drive, thereby reducing the time spent on fire extinguishing for filling this tank with a new portion of gas, as well as to increase the reliability, durability of the device as a whole and the efficiency of its use.

The locking and starting device declared as an invention passed factory tests and is ready for release at the applicant enterprise.

Claims (4)

1. A reusable shut-off device for a gas extinguishing installation comprising a cylindrical body with an axial channel, an incentive chamber inside and two pipes arranged at an angle to each other: with one coaxial body with a gate saddle and an inlet pressure chamber in it. stimulating chamber of the body, and with a container filled with an inert gas under pressure with its own connecting nipple connecting it to the inlet nozzle; as well as with an outlet nozzle with a drencher camera in it; located in the housing on its axis is a movable spring-loaded gate in the form of a glass, which overlaps with its bottom the valve seat and keeps the nozzle in the initial state of the device with an unused drive by acting on it by a combination of forces: one force from inert gas pressure and the other from pressure its springs, corresponding to the strength of its elasticity, and when activating the drive that controls the pilot channel, formed by the combination of all open channels and grooves in the device associated with the stimulus chambers a device; a cover closing the end of the body with an axial hole and a movable valve placed in it that controls the movement of the shutter by forming its channel in the cover to allow inert gas to flow between the valve and the cover opening to atmosphere; a drive with its housing and an adapter sleeve in it with radial drainage holes forming together with the opposite end of the lid a channel for the release of inert gas into the atmosphere, and with its spring-loaded pusher actuating from the control signal acting on the movement of the valve in the lid, characterized in that the inlet the device body pipe is made with the valve seat on the same axis as the body, and the outlet pipe is made with the possibility of attaching to it a device for filling the emptied new container an inert gas, and at the bottom of the cup glass, a through-bore is made that directly connects the pressure chamber with the stimulus, while the shutter itself and its saddle are configured to form the surfaces of the resulting impact on the flow of a new batch of gas for refilling the emptied breech spring and raising the stopper above the saddle for transporting this portion of gas from the deluge chamber of the outlet of the device to the pressure chamber of its inlet. 2. The locking-starting device according to p. 1, characterized in that it is additionally equipped with another device for monitoring the pressure of an inert gas in the tank, for example, in the form of a pressure gauge or electronic sensor for remote control of the pressure in the tank. 3. The locking-starting device according to p. 1, characterized in that the valve of the device used nipple with a movable spring-loaded axis, interacting with the actuator pusher when a signal is applied to it. 4. The locking starting device according to claim 1, characterized in that either an electromagnetic actuator and / or a pneumatic actuator with a selection of inert gas from the device itself and / or a manual actuator is used to act on the nipple to act on the nipple.

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