CN2366584Y - Multi-functional water power control valve - Google Patents

Abstract

The utility model relates to a multifunctional water power control valve, which belongs to the technical field of a slide valve and is particularly applicable to the opening and closing control of a water pump. The utility model is composed of a valve body, a valve cover, a valve seat, a valve core, a valve plate, a valve rod, a spring, an auxiliary regulating valve, a communicating valve, etc. The improvement lies in that a piston type cylinder and a piston are arranged between the valve cover and the valve plate, wherein, the piston is fixedly connected to the valve rod; a valve regulating rod is arranged on the valve cover corresponding to the valve rod, and consequently, the maximum opening degree of the valve can be set at random. The multifunctional water power control valve has the functions of a stop valve, a non-return valve, a throttle valve and a water hammer arrestor. The utility model has the advantages of stable operation and high durability.

Description

The multifunctional water force control valve

The utility model is a kind of improved multifunctional water force control valve, belongs to the guiding valve technical field, is particularly useful for the control that water pump is opened and closed.

The water-raising system of water pump generally all is provided with a plurality of valves and effective water hammer cancellation element, and these valves must carry out in the front and back that water pump opens and closes preventing after orderly operation just can make water pump light-load starting or termination of pumping that the pipe-line system medium from flowing backwards and the water hammer accident of pumping system.But it is just very loaded down with trivial details so to work, as is electric operating, very easily initiating failure and cause frequent maintenance.So people are devoted to develop a kind of valve that gathers multi-function in integral whole always.Wherein are no lack of some newly-designed hydraulic control valves, they can play the effect of some safety check and water-hammer arrester to a certain extent, though allow aperture but can automatically control the maximum that to set valve at random, can cause that also slow closing device is malfunctioning if this valve is installed on the pipeline of setting.In addition, adopt diaphragm of rubber usually because these valves are used to eliminate the slow closing device of water hammer accident, so this material is tired easily, wear out, break damage easily and do not have stability, therefore makes complete machine often not reach desirable operational effect.

The purpose of this utility model provides a kind of improved multifunctional water force control valve, this valve has the function of stop valve, safety check, throttle valve and water-hammer arrester etc. concurrently, stable working, durable in use and easy to use, can set valve opening at random with control flow rate.

Solution of the present utility model is, referring to accompanying drawing, a kind of multifunctional water force control valve, it is by valve body (1), valve gap (9), valve seat (13), spool (5), valve plate (7), valve rod (12), spring (11) and comprise modulating valve (2,16), connecting valve (3) is formed in interior assisting agency, wherein valve seat (13) is positioned at advancing of valve body (1), between the water outlet, valve plate (7) is positioned under the valve gap (9) on the valve port, valve rod (12) concentric passes valve plate (7) successively, spool (5) and valve seat (13) and can be in valve plate (7), be free to slide between spool (5) and valve seat (13) center hole, above-mentioned spring (11) is placed in valve rod (12) and goes up its two ends affixed spool (5) and valve plate (7) respectively, advancing of above-mentioned connecting valve (3), water intake and water outlet that don't bother about logical valve body (1) divided at the outlet two ends, improvements are, has a concentric piston cylinder (6) between described valve gap (9) and the valve plate, the piston (8) that can axially be free to slide is arranged in the cylinder, described valve rod (12) passes valve plate (7) towards the other end of spool one end and stretches to piston cylinder (6) the cylinder chamber affixed above-mentioned piston of concentric (8), described modulating valve (2) advances, piston cylinder (6) the upper part cylinder chamber of don't bother about between logical valve body (1) water outlet and valve gap (9) and the piston (8) is divided at the outlet two ends, modulating valve (16) advances, the cylinder chamber, piston cylinder (6) bottom between logical valve body (1) water intake and valve plate (7) and the piston (8) divide is don't bother about at the outlet two ends, concentric correspondence valve rod (12) regulating valve stem (10) that also has been threaded on described in addition valve gap (9) center hole.

The working principle of the utility model multifunctional water force control valve of Gou Chenging is thus, when pump startup, the current that pump by valve body (1) left side water intake flow into valve pocket impact spool (5) pressure spring (11) on the valve seat (13) make spool (5) thus on move Open valve, press water enters cylinder chamber, piston (8) bottom by modulating valve (16) and promotes piston (7) drive valve rod (12) slow spool (5) of opening under controlled speed simultaneously, current flow out through valve body (1) right side water outlet, changeover valve adjustable lever this moment (10) makes it to move down and roof pressure valve rod (12) can promote spool (5) thereby move down to reduce valve opening by valve rod (12), reduces the flow of pump; Otherwise valve rod (12) is up, and valve increases aperture, enlargement discharge, and this valve is easy and simple to handle, and effect is obvious, can reach desirable restriction effect; And after water pump is shut down; water pump water outlet end decompression; cooperate with valve rod (12) spool (5) that slides self gravity and the elastic force effect of spring (11) under quick closedown; and since spool (5) towards the one side decompression of pump and the press water of opposite direction one side enters by modulating valve (2) that cylinder chamber, piston (8) top promotes that piston (8) drives that valve rod (12) is slowly closed spool (5) equally under controlled speed thus by backflow; be quick closedown as above-mentioned spool (5) simultaneously; and the closure between the step ring of spool (5) and valve rod (12) is asynchronous with it; so under the earial drainage effect of spool (5) center hole, can not produce tangible impact of water hammer power so can effectively weaken the water hammer pressure fluctuation; realize the complete machine stable working, prolonged and durable.

Description of drawings.

Shown in the accompanying drawing structural representation of a specific embodiment of the utility model multifunctional water force control valve, wherein:

1-valve body 2-modulating valve 3-connecting valve 4-filter

5-spool 6-piston cylinder 7-valve plate 8-piston

9-valve gap 10-valve regulated bar 11-spring 12-valve rod

13-valve seat 14-safety check 15-filter 16-modulating valve

With reference to accompanying drawing, the valve body (1) of this embodiment's multifunctional water force control valve has inclination valve port up for bore is the cast iron valve body of 200 millimeters of Φ, towards the water intake on a left side with towards the water outlet on the right side.Advance, on the valve body of the corresponding valve port of water outlet intersection valve seat (13) is installed, draw materials valve plate (7) of its size that stainless steel materials makes and valve port size coupling of valve port place affixed, valve gap (9) by the valve port of bolt and valve body along the limit fixing bolt, axial concentric is threaded into valve regulated bar (10) on valve gap (9) center hole, piston cylinder (6), piston (8) and valve rod (12) are stainless steel, piston cylinder (6) size and valve plate (7) size coupling, the interior cylindrical cavity diameter of piston (8) diameter and piston cylinder (6) mates and can axially move as easy on and off in piston cylinder, valve rod (12) the upper end affixed piston of concentric (8), valve rod (12) lower end concentric passes valve plate (7) back concentric and is inserted in the spool (5) of a size and valve seat (13) coupling, valve rod (12) is by its ring-shaped step and spool (5) center hole planar surface encloses, be connected the good spring of elastic force (11) between spool (5) and the valve plate (7), spring (11) is placed on the valve rod (12), and valve rod (12) is corresponding with valve regulated bar (10) concentric.The connecting valve of assisting agency (3) employing bore is that type pipe and valve body (1) the entery and delivery port pipe of Q11F-16 type connecting valve through matching of 15 millimeters of Φ is logical affixed, because the bypass action of connecting valve (3), so surplus water in recyclable valve body (1) the water outlet pipeline, and replenish diversion when in the water intake pipeline of pump, vacuum occurring.It is that the Z11H-25 type valve of 15 millimeters of Φ also leads to through type Guan Yiduan and valve body (1) water outlet pipe and connects that modulating valve (2) adopts bore, it is logical with piston cylinder (6) top rainbow lumen that the other end passes valve gap (9), for anti-foreign material enter in the piston cylinder, on the type pipe between modulating valve (2) and the valve gap (9) also pipe connect a filter (4), it is that the T11H-16 type valve of 15 millimeters of Φ leads to through type Guan Yiduan and valve body (1) water intake pipe and connects that modulating valve (16) adopts bore, the other end passes piston cylinder (6) lower edge and piston cylinder (6) bottom cylinder lumen and leads to and connect, for anti-foreign material enter in the piston cylinder, on the type pipe between modulating valve (16) and the piston cylinder (6) also pipe connect a filter (15), be anti-medium back flow, on the type pipe between filter (15) and the piston cylinder (6) model being installed also is H11F, bore is the safety check (14) of 15 millimeters of Φ.This example multifunctional water force control valve of Gou Chenging is tried out through the sample valve and is proved to be respond well thus, use very convenient, thereby can set effectively control flow rate of valve opening at random, stable working and durable has the repertoire of stop valve, safety check, throttle valve and water-hammer arrester fully concurrently.Examination is used with 200S63A type water pump, and it is as follows to record the result:

200S63A type water pump, rated speed are 2950 rev/mins, and power of motor is 55 kilowatts, and system's lift is 50 meters, and flow is 289 cubic metres/hour.(1) after the outage termination of pumping, valve began to close after 1 second, close after 25 seconds and finish, valve export pressure is reduced to 0.25 MPa earlier, after go back up to peak 0.52 MPa, water pump maximum inversion speed took place in the time of 12 seconds, was 800 rev/mins, the water hammer amplitude is little, after the outage termination of pumping water pump speed reversal less than 1/3 of rated speed; (2) open pump after, valve reached predefined maximum opening in the time of 2.5 minutes; Drag losses when (3) turning round when flow is 289 cubic metres/hour, is 0.50 MPa before the valve, is 0.49 MPa behind the valve.

Claims (1)

1, a kind of multifunctional water force control valve, it is by valve body (1), valve gap (9), valve seat (13), spool (5), valve plate (7), valve rod (12), spring (11) and comprise modulating valve (2,16), connecting valve (3) is formed in interior assisting agency, wherein valve seat (13) is positioned at advancing of valve body (1), between the water outlet, valve plate (7) is positioned under the valve gap (9) on the valve port, valve rod (12) concentric passes valve plate (7) successively, spool (5) and valve seat (13) and can be in valve plate (7), be free to slide between spool (5) and valve seat (13) center hole, above-mentioned spring (11) is placed in valve rod (12) and goes up its two ends affixed spool (5) and valve plate (7) respectively, advancing of above-mentioned connecting valve (3), water intake and water outlet that don't bother about logical valve body (1) divided at the water outlet two ends, it is characterized in that, has a concentric piston cylinder (6) between described valve gap (9) and the valve plate, the piston (8) that can axially be free to slide is arranged in the cylinder, described valve rod (12) passes valve plate (7) towards the other end of spool one end and stretches to piston cylinder (6) the cylinder chamber affixed above-mentioned piston of concentric (8), described modulating valve (2) advances, piston cylinder (6) the upper part cylinder chamber of don't bother about between logical valve body (1) water outlet and valve gap (9) and the piston (8) is divided at the outlet two ends, modulating valve (16) advances, the cylinder chamber, piston cylinder (6) bottom between logical valve body (1) water intake and valve plate (7) and the piston (8) divide is don't bother about at the outlet two ends, concentric correspondence valve rod (12) regulating valve stem (10) that also has been threaded on described in addition valve gap (9) center hole.