CN2379666Y

CN2379666Y - Valve for keeping constant water level

Info

Publication number: CN2379666Y
Application number: CN 99226348
Authority: CN
Inventors: 鲁定尧
Original assignee: JIAYING ELECTROMAGNETIC VALVE FACTORY YUYAO CITY
Current assignee: JIAYING ELECTROMAGNETIC VALVE FACTORY YUYAO CITY
Priority date: 1999-04-17
Filing date: 1999-04-17
Publication date: 2000-05-24
Anticipated expiration: 2009-04-17

Abstract

The utility model relates to a valve for keeping constant water level, belonging to a device for automatically opening and closing a liquid level interface in a control container. The device is composed of a main valve part and a float ball part. The small float ball is utilized for rise to a top limit liquid level interface via small buoyancy to cause the main valve having a large caliber to close, and the main valve having a large caliber is opened when a liquid level drops to a bottom limit interface. The opening or closing operation is completed via a chief valve core in a main valve body. The utility model is characterized in that one side of the upper part of the valve body is provided with a damping hole, and the outlet of the hole is communicated with a control cavity between a valve cap and a diaphragm. The pressure of the control cavity is increased in order to cause the opening of the main valve to close when a small float ball valve is closed, and otherwise, the opening of the main valve is opened. The utility model is an ideal product in present similar valves.

Description

Valve for keeping constant water level

The utility model relates to control water level in the container, and a kind of device of other liquid-level interface.

Before this device emerges, huge tanks, pond, and industrial container, most upper limit interface and following boundaries of controlling liquid level with float valve.Promptly ball float is subjected to buoyancy and is increased to the summit when liquid level rises, and ball float also descends thereupon when liquid level descends, and ball float arrives summit and decline, all by the linking mechanism of lever, directly controls closing and opening of float valve spool.Flexible, the reliability of this mechanism is that buoyancy, the intake pressure according to ball float determined.Therefore, the ball float volume of this float valve is bigger, and it is high to be used in intake pressure, hard-core place, mounting point.

The purpose of this utility model is, the level controling mechanism of design and the buoyancy of ball float, the influence of intake pressure size reduce, and make it can be applicable to that pressure is higher, and the place that not influenced by the use position is simultaneously easy for installation.

For reaching above-mentioned purpose, design proposal is such: it is made up of primary valve part and ball float part, be provided with the damping hole and the spool mechanism of damming in primary valve part, this mechanism and ball float partly link, make less buoyancy come sensitivity the instruction spool unlatching or close.

The advantage of this design proposal is, controls the break-make of fluid in the heavy caliber pipe with the ball float of smaller size smaller, thereby reaches the interface of the big-and-middle-sized vessel liquid of control, and it is a kind of product comparatively desirable in the similar valve.

Description of drawings: Fig. 1 is the structural drawing of the utility model primary valve part, and Fig. 2 is the structural drawing of ball float part, and Fig. 3 installs and uses phase diagram.

Now contrast above-mentioned accompanying drawing also in conjunction with the embodiments, its feature is set forth as follows: Valve for keeping constant water level partly is made up of primary valve part and ball float, primary valve part is made up of valve body 1, valve gap 5 and total spool, total spool is by diaphragm 2, pressing plate 3, and pallet 6 and nut constitute, total spool is under the effect of deadweight and spring 4, dynamic fluid is divided into control chamber, water intake, water outlet, and water intake, control chamber link to each other with damping hole 8, and direction shown in the arrow is fluid flow direction among the figure.The ball float part is made up of small floating ball 11, little valve body 10, small valve core 13, between sector lever 12 that small floating ball valve 11 links to each other and small valve core 13, leave certain rotation space L, small valve core 13 is motionless in small floating ball 11 processes of rising or falling, thereby reduce the unlatching number of times of total spool, improve the life-span of diaphragm 2.Installing and using phase diagram 3 is with this Valve for keeping constant water level, is installed in the embodiment that water level is regulated in the concrete cement pond.The pore 7 that valve body 1 bonnet 5 is offered is communicated with little valve body 10 by water pipe 14, at the water inlet main pipe foreneck of valve body a manually operated valve 15 is installed.When the water level in pond during in shown position, small floating ball rises to upper limit interface, the small floating ball valve cuts out, water in the control chamber can not flow out from the small floating ball valve, control chamber pressure is increased, under the effect that spring 4 and total spool are conducted oneself with dignity, diaphragm 2 is closed water intake with primary valve and can not be linked to each other with water outlet, and valve body 1 is in current floe condition.When the pond middle water level is consumed to down boundary, small floating ball 11 drives small valve core 13 and moves, float valve is opened, under the effect of damping hole 8, the control chamber internal pressure descends, and less than water intake pressure, is moving on the promotion diaphragm 3 under the effect of water intake hydraulic pressure, total spool is opened, and water inlet saliva flows into the pond in a large number by water outlet.Thereby the realization that goes round and begins again the function of valve location, it has certain application value.

Claims

1, Valve for keeping constant water level is made up of primary valve part and ball float part, it is characterized in that:

A) top one side of valve body (1) is provided with damping hole (8), and the outlet in this hole is communicated with control chamber between valve gap (5) and the diaphragm (2), is provided with seal ring (9) in their joints; Joint at valve body (1) and valve gap (5) is provided with total spool, and total spool is made up of diaphragm (2), pressing plate (3), pallet (6) and nut, is provided with spring (4) on gland (3);

B) leave certain rotation space L between the sector lever (12) that links to each other of small floating ball valve (11) and the small valve core (13).