CS232747B2 - Electromagnetic valve with direct flow - Google Patents

Abstract

The device is within the flow control area gaseous and liquid substances. The electric valve solves reliable and noiseless regulating the flow of substances while giving resistance prouděnLje. very small. These properties are achieved by use bell-powered electromagnet direct current whose mean parts. controllable substance flows through. On the pole the bells of the bell electromagnet abut circular flat anchor with hole in the middle centered by a membrane attached between the body bell electromagnet and output flange channel on which the closing seat is located. The anchor pull is damped by the centering membrane, waste is damped by rubber seals a disc that abuts the exit seat. The electric valve does not have friction parts, so it does can not seize, its stops are muted and soft, ensuring noisiness, gas flow it is straightforward without turbulence. Its use is especially in regulation gas heating units and local bodies, gas water heaters, regulation flow of liquids ap. Required to complete by the electronic control unit also to regulate smooth.

Description

gaseous and liquid substances.

The solenoid valve solves reliable and noiseless regulation of the flow of substances, while the flow resistance is. very small.

These properties are achieved by the use of a bell electromagnet supplied with a direct current, the central part of which is provided. a controllable substance flows. A bell flat anchor with a hole in the center bears on the pole piece of the bell electromagnet, centered by the membrane attached between the bell electromagnet body and the flange with the outlet channel on which the closing seat is. The anchor draw-in is damped by a centering membrane, the waste is damped by a rubber sealing disc that rests on the outlet seat. The solenoid valve has no friction parts, so it cannot seize, its stops are soft and soft, ensuring noiselessness, the gas flow is straightforward without turbulence.

It is possible to use it especially in regulation of gas heating units and local bodies, gas water heaters, regulation of flow of liquids etc. When completed with the necessary electronic control unit, it can also be used for continuous regulation.

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The invention solves an electromagnetic, noiseless, highly reliable valve for regulating gases and liquids in which substances flow almost straight, without turbulence.

The electrovalves used up to now solve the flow of substances through a suitably shaped channel through which these substances flow through the closing seat into the outlet channel. These channels are kinked and thus give a high resistance to the flowing substances. The core of the solenoid actuating valve is drawn into the solenoid coil where it hits the counterpart of the magnetic circuit, causing shock and thus high noise and wear. Also, the possibility of seizing the core in the guide tube greatly reduces the reliability of the valve.

The above drawbacks are overcome by the solenoid valve of the invention. Its essence is a bell electromagnet, the center of which flows through the controlled substance, which further flows through the anchor hole into the opposite outlet channel with the closing seat. The anchor has no friction parts and is guided only through the centering membrane. A seal is also attached to the anchor to close the flow through the valve.

By using a bell electromagnet and anchor guided through the centering membrane, absolute galling resistance is achieved as friction surfaces are eliminated. Since the solenoid used is supplied with direct current, the armature can be lightweight and abut the magnetic circuit through a gap formed by the centering membrane. This removes pull-in shocks, noise and growl. The fabric flows almost straight through the valve, without unnecessary turbulence.

All parts of the valve are rotary in shape, easy to manufacture for the quality of magnetic materials.

In the attached figure, a cross-section of a solenoid valve according to the invention is shown, to which the following description relates.

The bell electromagnet consists of a coil 1, an inlet duct tube 2, an upper face 3, a valve housing 4, and a lower end 5. The bell electromagnet is closed by an anchor 6 which abuts the lower face 5 and an inlet duct 2. The anchor 6 and the gasket 11 are pressed by a spring 9 to the flange seat 12, which is closed by the gasket 11. The gasket 11 is secured to the anchor 6 by the gasket holder 10. The coil space 1 is sealed by means of the sealing membrane 8. The centering membrane 7 and the sealing membrane 8 are compressed by a flange 12 to the lower face 5. Thus, everything is also sealed against leakage of the flowing substances. The space between the centering diaphragm 7 and the sealing diaphragm 8 also provides an additional pneumatic damping of the movement of the armature 8. A soft stop when the armature 6 is pulled is provided by the centering membrane 7 and the seal 11 is removed.

The valve can be used for two-position and stepless control of gaseous and liquid substances, especially where quiet, trouble-free operation is required. These include, for example, gas-fired heating units, water heaters, direct-heating elements, etc. The suitable choice of the materials used also provides resistance to aggressive controlled substances.

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Claims (2)

1. A direct flow solenoid valve, characterized by a DC solenoid electromagnet consisting of a coil (1), an inlet channel tube (2), an upper face (3), a valve housing (4) and a lower face (5) on which it rests an anchor (6), guided and damped by a centering membrane (7) through which the controlled substance flows in a straight line from the INTAKE PIPE of the inlet channel (2) to the outlet seat of the flange (12) of the sealed seal (11). 2. Solenoid valve according to claim 1, characterized in that its solenoid circuit forms at the same time the jacket of the solenoid valve I and its functional part in the regulation of the flowing substance.