KR20200044611A - All-in-one fluid control valve and valve actuator assembly - Google Patents

Abstract

Provided are a system of an integrated fluid control valve and a valve actuator assembly, and a method thereof. According to the present invention, the valve actuator assembly comprises a pressure-operated fluid control valve for controlling a flow of liquid from a liquid supply pipe system of a fire prevention system to a sprinkler pipe system when the fire prevention system is transited from a standby status to a driving status. The control valve defines a valve chamber for maintaining a pressurizing fluid in order to prevent the flow of the fluid through the control valve. To set the fluid control valve to be in a non-driving preparation status and to automatically and/or manually operate the fluid control valve, a valve actuator is coupled to a fluid control valve housing. To maintain and control the operation of the valve actuator for the controlled operation of the fluid control valve, an automatic control apparatus can be arranged to fluid-communicate with the valve actuator.

Description

All-in-one fluid control valve and valve actuator assembly}

The present invention relates generally to a differential fluid control valve, and more particularly to a valve actuator for driving a fluid control valve in a fire protection system.

The automatic sprinkler system is one of the most widely used fire protection devices. Such systems have sprinklers that are activated when the ambient temperature of the environment, such as a room or building, exceeds a predetermined value. When activated, sprinklers spray extinguishing fluid, preferably water, in a room or building. Fire sprinkler systems are considered effective in controlling or extinguishing a fire, depending on its specified configuration. The sprinkler system can be provided with a water source (eg, water reservoir or municipal water supply). Such a water source may be separate from that used by the fire department. Regardless of the type of water source, the sprinkler system has a main that enters the building to supply a riser. A valve, meter, and preferably, an alarm that sounds when the system is activated is connected at the riser. Downstream of the riser, an array of pipes, usually arranged horizontally, extends over the fire section in the building. Other risers can provide distribution networks to systems in adjacent fire compartments. Sprinkler systems can be provided in a variety of configurations. For example, in a wet-pipe system used in a building equipped with a heating space for the plumbing line, all system pipes contain a fire-fighting fluid such as water for immediate discharge through any activated sprinkler. For dry-pipe systems used in non-heated areas, areas exposed to freezing points, or areas where leakage or unintended drainage is generally undesirable or unacceptable, such as in residential areas, the pipes of the fire protection system, The risers, and the supply mains, feeders, and other distribution pipes may contain dry gas (air or nitrogen or mixtures thereof) under pressure when the system is in atmospheric or non-driven conditions. The valve is used to separate pipes containing water. Fire heat spring

When activating the clutch, gas exits the branch line and the dry-pipe valve is tripped or driven; Water enters the branch line; Digestion begins as the sprinkler sprays water. One type of fluid control valve used to separate a gas filled pipe and a liquid filled pipe is a diaphragm type or diaphragm style valve, as shown in US Pat. No. 8,616,234 (“Fluid Control Valve Systems and Methods”), Each of these is incorporated by reference in its entirety. Each wet and dry part of the system

To control the flow of fluid between the field and the inlet and outlet, the control valve is sealed to control the flow of fluid through the valve to prevent or allow flow of fluid from the wet portion of the system to the dry portion of the system, respectively. And an internal diaphragm member having an open position. The position of the diaphragm is controlled by the fluid pressure acting on the inner diaphragm member. The fluid pressure is controlled by various components arranged to correspond to system conditions.

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1A-1C illustrate preferred embodiments of an integral base fluid control valve and valve actuator assembly 10 having a preferred fluid control valve 20 and valve actuator 30 for preferably controlling the flow of liquid in a fire protection system. City. The valve actuator 30 preferably provides for manually setting or resetting the control valve 20 in a non-driven ready-to-drive state, and preferably for automatically and / or manual tripping of the control valve 20 to a driven or operational state. . One or both of the preferred fluid control valve and valve actuator 30 is preferably pressure operated. Therefore,

The tooth assembly 10 further includes a manual release device 50 that is preferably coupled to the pressure line 15, the pressure gauge 40, and preferably the valve actuator 30. The preferred base assembly 10 preferably further comprises a drip funnel or cup 60 for connecting fluid control components, including the valve actuator 30, to the drain line. 4A, 4B, 5A, 5B, 6A, and 6B, coupled to the valve actuator 30 for automatic operation of the preferred fluid control valve and valve actuator assembly 10a, 10b, 10c Each alternative implementation of a preferred fluid control valve and valve actuator assembly 10a, 10b, 10c, including a base fluid control valve and valve actuator assembly with each preferred automatic control trim device or module 80a, 80b, 80c. There are examples. Particularly in FIGS. 4A and 4B, a preferred integral fluid control valve and valve actuator assembly 10a with a preferred dual interlock trim module 80a is shown. 5A and 5B, a preferred integral fluid control valve and valve actuator assembly 10a with a pneumatic trim control module 80b is shown. 5A and 5B, a preferred integral fluid control valve and valve actuator assembly 10a with an electric trim control module 80c is shown.

Referring now to FIGS. 2A and 2B, an integral assembly having a fluid control valve 20 for controlling the flow of liquid from a liquid supply piping system into a sprinkler piping system, particularly when transitioning a fire protection system from an atmospheric state to a driving state. The cross section of (10) is shown. In general, the preferred fluid control valve 20 defines an internal fluid flow passage or port 22 with an inlet 22a and an outlet 22b. The inlets and outlets 22a, 22b are preferably arranged in a spaced state and are centered along the longitudinal axes A-A, more preferably along the longitudinal flow axes A-A. In addition, each inlet and outlet 22a, 22b may include suitable connections for coupling to a liquid supply pipe and a sprinkler pipe main or riser, respectively. Exemplary connections include a flange end, as shown, but control valve 20 may include alternative connections. The internal flow port 22 is properly opened and closed to control the flow of liquid from the liquid supply piping system to the sprinkler piping system. In a preferred embodiment of the base assembly 10, the fluid control valve is a pressure actuated valve 20 that opens and closes the inner port 22. More preferably, the fluid control valve 20 is a diaphragm pressure operated fluid control valve. In a preferred embodiment of the fluid control valve 20, the fluid control valve 20 includes a valve housing 21 that defines a valve chamber 24 for receiving the valve diaphragm 26 disposed therein. The valve diaphragm preferably has a sealed position and an open position to control the flow of fluid through the inner port 22. The position of the valve diaphragm 26 is preferably controlled by the fluid pressure acting on the inner diaphragm member 26. To prevent flow of fluid through the control valve 20, the valve chamber 24 preferably holds pressurized fluid to keep the valve diaphragm 26 in a seated position. More specifically, when the valve chamber 24 is filled with fluid, the valve diaphragm 26 is sealed against the inner surface of the valve housing 21.

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Claims (1)

A pressure-operated fluid control valve having an inlet and an outlet arranged along the flow axis to control the flow of liquid from the liquid supply piping system to the sprinkler piping system upon transition of the fire protection system from the standby state to the driving state, wherein the control A control valve having a valve housing defining a valve chamber for holding pressurized fluid to prevent flow of fluid through the valve; A housing having an inner surface defining an inner chamber having a central axis; A first actuator seat disposed along the inner surface of the housing circumscribed around the central axis; A second actuator seat disposed along the inner surface circumscribed and disposed around the first actuator seat; Defines a sealing position engaged with the first actuator seat and the second actuator seat, and further defines an open position axially spaced from the first and second actuator seats.
Dependent sealing member; A first port proximate the first actuator seat in communication with the valve chamber and the inner chamber of the control valve; A second port in communication with the inner chamber to provide fluid communication with an automatic control device; A third port for fluid communication with a drain line, which communicates with the inner chamber, is isolated from the first and second ports when the sealing member is in the sealed position, and is removed from the first and second ports when the sealed member is in the sealed position. A third port in fluid communication with the first port and the second port; And a fourth port for providing fluid communication with a fluid source, in communication with the first port, in communication with the inner chamber, isolated from the third port when the sealing member is in the sealed position, and sealing And a valve actuator comprising a fourth port in fluid communication with the third port when the member is in the open position.

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