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Valve unit for controlling the delivery of a fuel gas

一种阀门装置、燃气的技术，应用在阀装置、控制燃烧、阀的操作/释放装置等方向，能够解决要求条件苛刻、结构复杂、电磁铁移动困难等问题

Inactive Publication Date: 2006-08-16
SIT LA PRECISA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although on the one hand, this solution is very reliable in ensuring the safe closing of the valve seat, on the other hand, it leads to a certain structural complexity, which is mainly related to the use of an electromagnet, which is The control lever of the piece floats, in particular, in the area affected by the air flow
This structure actually requires specific conditions for electrical insulation and sealing against gas, and the requirements for electrical contacts and wires used to provide electromagnets are more stringent. more difficult

Method used

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  • Valve unit for controlling the delivery of a fuel gas
  • Valve unit for controlling the delivery of a fuel gas
  • Valve unit for controlling the delivery of a fuel gas

Examples

Experimental program
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Embodiment Construction

[0010] In said figures, valve means, not shown in the figures, shaped according to the invention for controlling the delivery of gas to a burner or other similarly utilized means, are generally indicated by 1 . Fuel gas is supplied to the device 1 via a gas supply line 2 partially shown in the figure and is conveyed from the device via a transfer line 3 .

[0011] The valve arrangement 1 comprises a regulating valve 4 comprising a disc-shaped shut-off element 5 which acts on a valve seat 6 formed between the closed ducts 2 and 3 and thus closes the valve seat 6 . The device also includes a motor-driven actuator, generally designated 7 , comprising a rod 8 with a longitudinal axis X, for operating the shut-off member 5 .

[0012] The operating rod 8 comprises two structurally independent and coaxial parts 9 and 10 which form extensions of each other and are connected to each other by an external and internal thread fit.

[0013] In particular, the first part 9 of the rod has a...

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PUM

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Abstract

A valve that controls the delivery of a fuel gas through a delivery duct 3 includes a valve seat 6 in the duct, a closure member 5 associated with the seat, and a motor-driven actuator 7 that acts on the closure member in order to open / close the valve seat. The valve unit also includes an electromagnetic unit 22 with a first portion 23 carrying a magnetizing winding 24 and a second portion 25 which can be fixed firmly to the first portion by magnetization. The electromagnetic unit 22 is associated with the actuator in order to act on the closure member 5 so as to close the valve seat 6, irrespective of the operative position of the actuator 7, upon the occurrence of a predetermined condition which requires the valve seat to be shut off, and the actuator means 7 is movable, together with the second portion 25 of the electromagnetic unit, during the movement to control the closure member 5 so as to open / close the valve seat, the first portion 23 of the electromagnetic unit being connected to a stationary structure of the valve unit.

Description

technical field [0001] The invention relates to a valve arrangement for controlling gas delivery. Background technique [0002] Valve devices with the above characteristics are generally used to control the delivery of gas to burners or other similar use devices to control and adjust their delivery pressure or gas supply flow rate. [0003] A valve arrangement of this type is known from the applicant's own products and generally has a motor-driven actuator for effectively controlling the shut-off member to open and close a valve seat formed on the transfer pipe . For example, in order to control the cut-off member, it is known to provide a rod, which is connected to the rotor of the motor through the cooperation of internal and external threads, so that the cut-off member can be moved away from or towards the valve seat by the rotation of the rotor. . Through the rotation of the actuator, it is also possible to adjust and control the delivery pressure or flow rate of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23N5/10F23N1/00F16K31/06F23K5/00
CPCF23N2035/24F23N2035/14F23N5/107F23N2035/16F23N1/005F23N2235/14F23N2235/16F23N2235/24F23N5/10
Inventor R·多里戈M·贾科梅利S·扎内拉
Owner SIT LA PRECISA