CN1039601C - Constant small moment controllable throttle valve device - Google Patents

Abstract

The present invention relates to a constant small moment controllable throttle valve device which can be opened and closed and can regulate flow quantity. The constant small moment controllable throttle valve device is especially provided with three ceramic valve cores, and a movable ceramic sheet in the middle can be formed by that a controllable valve which is driven by a gear can be used as a key part of the device is matched with an electronic controller, a liquid level sensor, and a servo motor of an actuating mechanism. The present invention is characterized in that the comparison starting moment of an electromagnetic valve is constant and is very small, so the electromagnetic valve is suitable for being opened and closed and automatically controlling flow quantity in a long distance. The present invention which has the advantages of stable operation, low noise, long service life, small power consumption and no leakage can be widely applied to places of flow quantity regulation and flow quantity slight regulation.

Description

Constant small moment controllable throttle valve device

A kind of constant small moment controllable throttle valve device that relates to keying and Flow-rate adjustment.

Existing solenoid valve is realized the opening and closing action by means of the electromagnetism adhesive, and moment is big during startup, and switching noise is big, and device volume is big, and energy consumption is also bigger.Be only applicable to control again and open and close, be not suitable for control flow rate or Flow-rate adjustment and fine setting, and damage easily, the life-span is shorter.Existingly again mainly contain the on-off type valve that two quiet (porcelain) sheets and moving (porcelain) sheet, valve body and corresponding sealing component are formed, good airproof performance, starting torque is little, and the life-span is long, but can only be manually and can not far distance automatic controlling.

The objective of the invention is to overcome above shortcoming, provide a kind of and not only be suitable for opening and closing control, and also suitable flow regulates automatically, volume is little, operates steadily the novel constant small moment controllable throttle valve device that noise is little.

The present invention implements like this: be on three the basis of valve mechanism body at existing ceramic valve core, with wherein middle dynamic porcelain piece via the controllable valve of gear transmission mode critical component as this device, cooperation realizes the accurate far distance automatic adjusting control of flow easily with actuating motor and the relevant detection liquid level sensor and the electric control device thereof of actuator.

Therefore, compare with solenoid valve, starting torque of the present invention is very little, and keeps the constant force square substantially, volume is little, power consumption is little, operates steadily, and noise is very little, also wear resistant corrosion resistant, life-span is long, can carry out manually-operable. and also can realize far distance automatic controlling by small power electric sub-controller and actuating motor, be to be particularly suitable for Flow-rate adjustment or to finely tune the throttle valve gear that uses under the occasion.

Provide specific embodiments of the invention in detail below in conjunction with accompanying drawing.

The part-structure front view of three ceramics valves of accompanying drawing 1 With a driven gear;

The part-structure side view of three ceramics valves of accompanying drawing 2 With a driven gear;

Close (a) of accompanying drawing 3 three pieces type ceramic valve core structures opens (b) schematic diagram;

Accompanying drawing 4 gear transmission part-structure schematic diagrams;

Accompanying drawing 5 gear-driven controllable valve structural representations;

The controlled valve structural representation of accompanying drawing 6 tooth bar pull bar transmissions;

Accompanying drawing 7 overall block diagrams of the present invention.

Wherein: 1 inlet stable ceramic piece, 2 middle dynamic porcelain pieces, 3 outlet stable ceramic pieces, 4 seal rings, 5 inlet hold-down bolts, 6 outlet hold-down bolts, 7 chek bolts, 8 driven gears (ceramics turning wheel), 9 valve bodies, 10 main drive gears, 11 actuating motors (actuator), 12,13 bearings and bearing support, 14 joining portion, 15 main transmission tooth bar pull bars, 16 controllable valves, 17 electronic controllers, 18 liquid level sensors, 19 liquid levels, 20 containers.

Provide specific embodiments of the invention in detail below in conjunction with accompanying drawing.

The present invention as the actuating motor 11 of operation actuator, and carries out liquid level sensor 18 and the corresponding electronic controller 17 4 parts composition thereof that liquid level detects, as shown in Figure 7 by the critical component controllable valve 16 of keying and adjusting flow.Controllable valve 16 is as the structural diagrams part and the on-off principle thereof of Fig. 1～Figure 3 shows that valve body 9 inside.Rotating leakproof fit three cylindrical ceramics that have fan shaped borehole is core components: inlet stable ceramic piece 1, middle dynamic porcelain piece 2 and outlet stable ceramic piece 3.Middle dynamic porcelain piece 2 is inlayed is fixed on the ceramics turning wheel, promptly on the driven gear 8.Above-mentioned inlet stable ceramic piece 1, middle dynamic porcelain piece 2 and outlet stable ceramic piece 3 threes are gone into, exports hold-down bolt 5,6 by interior hexagonal and two seal rings 4 going into, go out to hold are pressed on the valve body 9.Chek bolt 7 with outlet end pushes against in valve body 9 again.The contact plane precision of the spool of three ceramics is very high, and is adjusted to and requiredly closely cooperates under withstand voltage, and switching motion is firmly very little, has also realized effectively not having leaking.The size of two fan hole areas and the needs that relative position should guarantee enough flows on each ceramics.

Dynamic porcelain piece 2 links with main drive gear 10 engagements by the ceramics turning wheel 8 that is fixed on its outer periphery in the middle of above-mentioned, and in the axle center running of valve body 9 inner chambers along self, as shown in Figure 4 and Figure 5.And main drive gear 10 is fixed on the valve body 9 by axle 12 and two bearings and bearing support 13, axle 12 connects with the rotating shaft of actuating motor 11 again, the actuating motor 11 that is fixed on the smaller power on the valve body 9 is as the signals-modulating of controlled actuator by electronic controller 17 outputs, and provides input signal to electronic controller 17 by carrying out the liquid level sensor that liquid level detects.

As change embodiment, as shown in Figure 6, constitute a kind of tooth bar pull bar transmission controlled valve, be about to one of main drive gear 10 mechanisms generation main transmission tooth bar pull bar 15 of above-mentioned controllable valve 16, and a joining portion 14 that the linkage structure of joining of fixed hole and so on is arranged is set at an end of tooth bar pull bar 15.This structure can be manually, also can be by connecting rod etc., and effectively being connected, or transforming joining portion 14 and make it to match with eccentric wheel or gear with actuator 11, so that move back and forth, the keying and the Flow-rate adjustment of realization valve.This controlled valve can make actuator 11 and valve body 9 splits that installation is set.

Three ceramics of above-mentioned core components are that high-intensity industrial ceramics or toughness pottery are made.Seal ring 4 usefulness silica gel, asbestos or Expanded graphite are made, and valve body 9, main drive gear 10, driven gear 8 and each bolt etc. are made for brass or stainless steel.

In sum, advantage of the present invention is conspicuous, is the ideal controllable throttling arrangement, can be widely used in Flow-rate adjustment and fine setting occasion.

Claims (2)

1. one kind relates to and opening and closing and the constant small moment controllable throttle valve device of Flow-rate adjustment, it is by controllable valve [16], actuator [11], liquid level sensor [18] and electronic controller [17] thereof constitute, the core components of above-mentioned controllable valve [16] is by rotating leakproof fit three cylindrical ceramics that have fan shaped borehole: inlet stable ceramic piece [1], middle dynamic porcelain piece [2] and outlet stable ceramic piece [3] constitute, and the three is gone into by interior hexagonal, outlet hold-down bolt [5], [6] and go into, two seal rings [4] that go out end are pressed on the valve body 9, chek bolt [7] with outlet end pushes against in valve body [9] again, it is characterized in that

A) dynamic porcelain piece [2] is inlayed to be fixed on and is subjected to main drive gear [10] engagement interlock on the ceramics turning wheel [8] in the middle of above-mentioned, and main drive gear [10] is fixed on the valve body [9] by spool [12] and two bearings and bearing support [13],

B) above-mentioned actuator is for being fixed on the actuating motor [11] of the smaller power on the valve body [9], the rotating shaft of actuating motor [11] connects with axle [12], and regulated and control by the output signal of electronic controller [17], and provide input signal to this electronic controller [17] by liquid level sensor.

2. device according to claim 1, the ceramics turning wheel [8] that it is characterized in that the controllable valve [16] of said apparatus is subjected to the engagement interlock of main transmission tooth bar pull bar [15] and constitutes a kind of tooth bar pull bar transmission controlled valve, and a joining portion [14] that the bindiny mechanism that joins of fixed hole and so on is arranged is set on an end of tooth bar pull bar [15], is connected with actuator [11].

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