CN104214407B - One kind flows draining valve - Google Patents

Abstract

A flow equalizing drainage valve of the present invention comprises a water valve cavity, a water valve inlet connector installed on the upper end of the water valve cavity, a filter screen arranged in the water valve inlet connector, and a water valve installed in the water inlet connector. The water valve drain connector at the lower end of the valve cavity, the water valve liquid outlet arranged on the water valve drain connector, the valve pipe arranged on the water valve liquid outlet, and the valve column that is inserted in the center of the valve pipe , and the plunger valve arranged on the top of the spool, and the float ball arranged on the top of the plunger valve. The present invention directly utilizes the buoyancy of the floating ball to lift the plunger valve, and the buoyancy of the floating ball is proportional to the opening of the plunger valve, so that the opening of the plunger valve, the flow area of the valve column, the valve tube and its displacement reach a balance point, Maintain automatic and stable discharge of displacement, uniform water flow, simple design, reduce jamming, no air leakage, easy to observe and detect, and can be used for experimental detection, simple structure, convenient maintenance and repair, low maintenance cost, strong sealing, and long service life Long, high work efficiency.

Description

A flow equalizing drain valve

technical field

The invention relates to a drain valve, in particular to an equal-flow drain valve used in air compressor dryers, compressed air systems, and various oil-water waste liquids that need to be discharged.

Background technique

The existing drain valves on the market have the following deficiencies. One: the design is unreasonable, often jammed, the gas cannot be closed, the gas is easy to leak, and the repair is not good. Only the drain valve needs to be replaced, resulting in high maintenance costs; Two: Due to the pushing and extrusion effect of airflow discharge, it is difficult to close after draining, and the startup or closing time is delayed a lot, resulting in low work efficiency; Third: The drain valve is a floating ball to open the piston, and the piston is made of rubber , Rubber seals are easy to deform frequently, affecting their sealing performance, prone to air leakage, poor quality, and short service life. And there are two kinds of discharge methods for existing drain valves, the first is fast drainage, and it is closed when it is released; the second is intermittent discharge. Faults occur, shortening the service life of the parts. Therefore, aiming at the deficiencies of the existing drain valve technology, by developing a valve with simple structure, simple manufacture, simple and fast use, convenient maintenance and repair, reduced maintenance and repair costs, strong sealing performance, no rubber parts failure, and no air leakage. , can drain water evenly, is convenient for observation and detection, and can be used for experimental detection, which can improve work efficiency and prolong service life. It has become an inevitable problem to be solved in the sustainable development of industrial society to remove oil, water and waste liquid.

Contents of the invention

The technical problem to be solved by the present invention is to provide a water pump with simple structure, simple manufacture, simple and fast use, convenient maintenance and repair, reduced maintenance and repair costs, strong sealing performance, no rubber parts failure, no air leakage, and uniform drainage. , is convenient for observation and detection, and can be used for experimental detection, which can improve work efficiency and prolong service life.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a flow equalizing drainage valve, including a water valve cavity, a water valve inlet connector installed on the upper end of the water valve cavity, and a water inlet connection installed on the water valve. The filter screen in the head, the water valve drain connector installed at the lower end of the water valve cavity, the water valve liquid outlet arranged on the water valve drain connector, and the valve tube arranged on the water valve liquid outlet, And the spool that moves through the center of the valve tube, the plunger valve that is arranged on the top of the spool, and the floating ball that is arranged on the plunger valve.

Further, rectangular flow holes are arranged symmetrically on the circumference of the outlet of the water valve, the water flow does not generate side pressure on the valve column, and the rising and falling movement of the valve column is not easy to cause movement jamming.

Further, the length of the spool is equal to the sum of the length of the valve tube and the length of the water outlet of the water valve, and the floating ball drives the spool to rise as the water level in the water valve cavity rises; when the water flow increases, the water valve The higher the water level in the cavity rises, the larger the flow area of the rectangular flow hole opened by the floating ball drives the valve column; the smaller the inflow flow is, the lower the water level of the water valve cavity drops, and the rectangular flow hole opened by the floating ball drives the valve column. The smaller the flow area of the orifice; the float ball drives the valve column to open the flow area of the water valve outlet in direct proportion with the rise of the water level in the water valve cavity, and the buoyancy of the float is related to the flow area of the water valve outlet and its displacement. There is a balance point to maintain the uniform flow of drainage, which is convenient for observation and detection; when there is no water inflow, the water level of the water valve cavity continues to drop, the floating ball falls back to its position under the action of gravity, and the liquid outlet of the water valve is closed. At this time, the water is still Without being exhausted, there will be no air leakage.

Further, the working principle of the equal flow drain valve is as follows: when the oil-water waste liquid enters the water valve chamber after being filtered by the water valve inlet connector and the filter screen, as the water flow rate of the water valve inlet connector increases, The floating ball gradually rises under the effect of buoyancy, and the rising of the floating ball drives the valve column to rise, so that the water level in the water valve cavity is proportional to the flow area of the rectangular flow hole driven by the floating ball to open the valve column, so as to maintain a stable and uniform water flow speed. Finally, the filtered oil-water waste liquid flows from the valve column to the water valve outlet, and then is automatically discharged from the water valve outlet through the water valve drain connector.

Further, the diameter of the floating ball is smaller than the inner diameter of the water valve cavity, and the floating ball moves with the water level in the water valve cavity rising and falling without friction of the water valve cavity, and the water level in the water valve cavity rises and falls freely, avoiding the water valve cavity The rise and fall of the water level in the body is blocked, which affects the uniform flow of the water.

A flow equalizing drainage valve of the present invention comprises a water valve cavity, a water valve inlet connector installed on the upper end of the water valve cavity, a filter screen installed in the water valve inlet connector, and a water valve installed in the water inlet connector. The water valve drain connector at the lower end of the valve cavity, the water valve liquid outlet arranged on the water valve drain connector, the valve pipe arranged above the water valve liquid outlet, and the valve column that is inserted in the center of the valve pipe , and the plunger valve arranged on the top of the spool, and the float ball arranged on the top of the plunger valve. The invention directly utilizes the buoyancy of the floating ball to lift the plunger valve, and the buoyancy of the floating ball is proportional to the opening of the plunger valve, so that the opening of the plunger valve and the flow area of the spool, the valve tube and its displacement reach a balance point. Maintain automatic and stable discharge of displacement, uniform flow of water, simple design, reduce jamming, no air leakage, easy to observe and detect, and can be used for experimental detection, simple structure, simple manufacture, simple and fast use, convenient maintenance and repair, and low maintenance cost Low, strong sealing, no failure of rubber parts, long service life and high work efficiency.

Description of drawings

For ease of illustration, the present invention is described in detail by the following preferred embodiments and accompanying drawings.

Fig. 1 is a schematic diagram of an equal flow drain valve of the present invention.

detailed description

In this embodiment, as shown in FIG. 1, a flow equalizing drain valve includes a water valve cavity 9, a water valve inlet connector 1 installed on the upper end of the water valve cavity 9, and a water valve inlet connector 1 installed on the water valve inlet. The filter screen 2 in the connector 1, the water valve drain connector 8 installed at the lower end of the water valve cavity 9, the water valve liquid outlet 6 arranged on the water valve drain connector 8, and the water valve outlet The valve tube 5 above the liquid port 6, the valve column 7 movably inserted in the center of the valve tube 5, the plunger valve 4 arranged on the top of the valve column 7, and the float 3 arranged on the plunger valve 4.

Wherein, the diameter of the floating ball 3 is smaller than the inner diameter of the water valve cavity 9, and the floating ball 3 moves along with the rise and fall of the water level in the water valve cavity 9 without the friction of the water valve cavity 9, and the water level in the water valve cavity 9 rises, The free fall prevents the rise and fall of the water level in the water valve cavity 9 from being hindered, which affects the even flow of the outlet water.

Wherein, the outlet 6 of the water valve is provided with rectangular flow holes (not shown) symmetrically on the circumference, the water flow does not generate side pressure on the valve column 7, and the rising and falling movement of the valve column 7 is not easy to cause movement jamming.

Wherein, the length of the spool 7 is equal to the sum of the length of the valve tube 5 and the length of the water valve outlet 6, and the float 3 drives the spool 7 to rise as the water level in the water valve cavity 9 rises; When the flow rate increases, the water level of the water valve cavity 9 rises higher, and the rectangular flow hole (not shown) opened by the floating ball 3 drives the valve column 7 to increase the flow area; when the water flow is smaller, the water valve cavity 9 The lower the water level drops, the smaller the flow area of the rectangular flow hole (not shown) opened by the floating ball 3 driving the spool 7; the floating ball 3 drives the spool 7 proportionally with the rise of the water level in the water valve cavity 9 Open the flow area of the outlet 6 of the water valve, the buoyancy of the float 3 has a balance point with the flow area of the outlet 6 of the water valve and its displacement, and maintain a uniform flow of drainage, which is convenient for observation and detection; when there is no water, The water level of the water valve cavity 9 continues to drop, the floating ball 3 falls back to its position under the action of gravity, and the water valve liquid outlet 6 is closed. At this time, the water has not been exhausted, and there will be no air leakage.

When working, when the oil and water waste liquid enters the water valve cavity 9 after being filtered by the water valve inlet connector 1 and the filter screen 2, as the water flow into the water valve inlet connector 1 increases, the floating ball 3 is affected by the buoyancy force. The effect gradually rises, the floating ball 3 rises to drive the valve column 7 to rise, so that the water level in the water valve cavity 9 is proportional to the flow area of the rectangular flow hole (not shown) opened by the floating ball 3 driving the valve column 7, so that The water flow speed is kept stable and even. Finally, the filtered oil-water waste liquid flows from the valve column 7 to the water valve outlet 6, and then is automatically discharged from the water valve outlet 6 through the water valve drain connector 8.

A flow equalizing drainage valve of the present invention comprises a water valve cavity, a water valve inlet connector installed on the upper end of the water valve cavity, a filter screen installed in the water valve inlet connector, and a water valve installed in the water inlet connector. The water valve drain connector at the lower end of the valve cavity, the water valve liquid outlet arranged on the water valve drain connector, the valve pipe arranged above the water valve liquid outlet, and the valve column that is inserted in the center of the valve pipe , and the plunger valve arranged on the top of the spool, and the float ball arranged on the top of the plunger valve. The invention directly utilizes the buoyancy of the floating ball to lift the plunger valve, and the buoyancy of the floating ball is proportional to the opening of the plunger valve, so that the opening of the plunger valve and the flow area of the spool, the valve tube and its displacement reach a balance point. Maintain automatic and stable discharge of displacement, uniform flow of water, simple design, reduce jamming, no air leakage, easy to observe and detect, and can be used for experimental detection, simple structure, simple manufacture, simple and fast use, convenient maintenance and repair, and low maintenance cost Low, strong sealing, no failure of rubber parts, long service life and high work efficiency.

The foregoing embodiment is only an example of the present invention, and is not intended to limit the implementation and scope of rights of the present invention. All technical solutions identical or equivalent to those described in the claims of the present invention shall be included in the protection scope of the present invention.

Claims (2)

1. A flow equalizing drainage valve, characterized in that: comprising a water valve cavity, a water valve inlet connector installed on the upper end of the water valve cavity, and a filter screen arranged in the water valve inlet connector, and The water valve drain connector installed at the lower end of the water valve cavity, the water valve liquid outlet arranged on the water valve drain connector, and the valve pipe arranged above the water valve liquid outlet, and the valve pipe are movably interspersed in the center The spool, and the plunger valve set on the top of the spool, and the float ball set on the plunger valve; The circumference of the outlet of the water valve is symmetrically provided with rectangular flow holes, the water flow does not generate side pressure on the valve column, and the rising and falling movement of the valve column is not easy to cause movement jamming; The length of the spool is equal to the sum of the length of the valve tube and the length of the water outlet of the water valve. The floating ball drives the spool to rise as the water level in the water valve cavity rises; when the water flow increases, the water level of the water valve cavity The higher the rise, the larger the flow area of the rectangular flow hole opened by the floating ball driving the valve column; when the water flow rate is smaller, the lower the water level in the water valve cavity drops, and the rectangular flow hole opened by the floating ball drives the valve column to pass through. The flow area is smaller; the floating ball drives the valve column to open the flow area of the water valve outlet in direct proportion with the rise of the water level in the water valve cavity; when there is no water, the water level in the water valve cavity continues to drop, and the floating ball is affected by gravity Lower back to the position, the liquid outlet of the water valve is closed, at this time, the water has not been exhausted, and there will be no air leakage; The working principle of the equal flow drain valve is: when the oil and water waste liquid enters the water valve cavity after being filtered by the water inlet connector of the water valve and the filter screen, as the water flow rate of the water inlet connector of the water valve increases, the floating ball is affected. The effect of buoyancy gradually increases, and the rising of the floating ball drives the valve column to rise, so that the water level in the water valve cavity is proportional to the flow area of the rectangular flow hole driven by the floating ball to open the valve column, so as to maintain a stable and even flow of water flow, and finally , the filtered oil-water waste liquid flows from the valve column to the water valve outlet, and then is automatically discharged from the water valve outlet through the water valve drain connector. 2. A flow equalizing drainage valve according to claim 1, characterized in that: the diameter of the floating ball is smaller than the inner diameter of the water valve cavity, and the floating ball moves with the rise and fall of the water level in the water valve cavity and is not affected by the water valve cavity. Friction, the water level in the water valve chamber rises and falls freely, avoiding the water level rise and fall in the water valve chamber being blocked, affecting the uniform flow of the outlet water.