CN-115750887-B - Pipeline control valve

CN115750887BCN 115750887 BCN115750887 BCN 115750887BCN-115750887-B

Abstract

The pipeline control valve comprises a solenoid valve shell, a solenoid valve coil, a solenoid valve upper fixed iron, a solenoid valve lower fixed iron, a solenoid valve spring, a solenoid valve moving iron, a solenoid valve core, a solenoid valve small valve hole sealing glue, a solenoid valve sliding sleeve, a solenoid valve small valve seat, a solenoid valve large valve hole sealing glue, a solenoid valve large valve seat, a solenoid valve mounting seat, an outlet joint, a high-low pressure cavity isolation sealing ring, a solenoid valve fixing screw and an inlet joint, when the electromagnetic valve is not electrified, a gap forming the total stroke of the electromagnetic valve moving iron is arranged between the electromagnetic valve moving iron and the fixed iron on the electromagnetic valve, a gap forming the first section of opening stroke of the electromagnetic valve is arranged between the bottom surface of the upward flanging of the electromagnetic valve sliding sleeve and the top surface of the valve core shaft shoulder of the electromagnetic valve, and the head of the electromagnetic valve fixing screw extends into the radial hole of the large valve seat of the electromagnetic valve to fix the electromagnetic valve in the hole of the electromagnetic valve mounting seat.

Inventors

WEI XIUXIA

Assignees

广东骏驰科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20221027

Claims (10)

1. A pipeline control valve is characterized in that the pipeline control valve comprises, The lower end of the solenoid valve coil is provided with a convex ring; The electromagnetic valve lower fixed iron is arranged at the lower part of the electromagnetic valve coil and comprises an axle center through hole, a lower end counter bore positioned at the bottom end of the axle center through hole, an upper annular groove and a lower annular groove which surround the axle center through hole, and the convex ring stretches into the upper annular groove and is sealed by a sealing ring; the upper fixed iron of the electromagnetic valve is arranged at the upper part of the electromagnetic valve coil, and the electromagnetic valve coil, the upper fixed iron of the electromagnetic valve and the lower fixed iron of the electromagnetic valve form an integral structure; a solenoid valve moving iron mounted in the axial through hole, the solenoid valve moving iron having an axial hole; the electromagnetic valve core is tightly fixed in the axle center hole and comprises a shaft shoulder protruding outwards perpendicular to the axial direction; The electromagnetic valve spring is arranged between the fixed iron on the electromagnetic valve and the electromagnetic valve moving iron, one end of the electromagnetic valve spring is connected with the electromagnetic valve core, the other end of the electromagnetic valve spring is connected with the fixed iron on the electromagnetic valve, the elastic force of the electromagnetic valve spring pushes the electromagnetic valve moving iron away from the fixed iron on the electromagnetic valve when the electromagnetic valve coil is not electrified to form an initial gap delta of the total stroke of the electromagnetic valve moving iron, and the lower end head part of the electromagnetic valve core is solidified with the electromagnetic valve small hole sealant; the electromagnetic valve sliding sleeve is sleeved on the electromagnetic valve core and comprises an upper flanging, a lower end spigot and a sliding sleeve radial hole communicated with an inner air cavity and an outer air cavity of the sliding sleeve, the upper flanging is clamped above the shaft shoulder, and a gap delta 1 for forming a first section of opening stroke of the electromagnetic valve is arranged between the bottom surface of the upper flanging and the top surface of the shaft shoulder; The electromagnetic valve small valve seat is arranged in the lower end spigot and is riveted on the electromagnetic valve sliding sleeve by a downward flanging, the electromagnetic valve small valve seat comprises an axial small valve hole phi 1 with a first diameter and a pit arranged at the lower end, electromagnetic valve large valve hole sealing glue is arranged in the pit, and the electromagnetic valve large valve hole is sealed rivet bonding by the lower end flanging of the electromagnetic valve small valve seat on the electromagnetic valve small valve seat; The electromagnetic valve large valve seat comprises an axial large valve hole phi 2 with a second diameter, an inner convex ring and a spigot which are distributed along the inner wall of the large valve hole phi 2, an overflow hole for communicating the inner cavity and the outer cavity of the electromagnetic valve large valve seat, a radial hole and a outflow hole below the electromagnetic valve large valve seat, wherein the spigot is sleeved on the outer circle of the lower end of the lower fixed iron of the electromagnetic valve, and the inner convex ring is clamped in the lower annular groove to enable the electromagnetic valve large valve seat and the lower fixed iron of the electromagnetic valve to be fixed into a whole to form an electromagnetic valve structure, and the second diameter is larger than the first diameter; The electromagnetic valve mounting seat comprises an inlet joint mounting hole, an electromagnetic valve fixing screw hole, an outlet joint mounting hole, an electromagnetic valve lower mounting hole and an electromagnetic valve upper mounting hole, wherein the inlet joint mounting hole is provided with an inlet joint, the electromagnetic valve fixing screw hole is provided with an outlet joint, the electromagnetic valve lower mounting hole is provided with an electromagnetic valve structure, and the electromagnetic valve fixing screw is connected with the electromagnetic valve fixing screw hole and extends into a radial hole below a large valve seat of the electromagnetic valve; The inlet air enters the electromagnetic valve mounting seat from the inlet joint, enters the inner cavity of the large valve seat of the electromagnetic valve through the overflow hole, enters the air cavity around the small valve hole phi 1 through the radial hole of the sliding sleeve from the counter bore at the lower end, and is communicated with the outlet joint.
2. The line control valve according to claim 1, wherein when the solenoid valve coil is not energized, the sealing force acting on the solenoid valve large valve hole sealing glue is the force of the pressure difference between the upper and lower sides acting on the large valve hole Φ2 section plus the spring force of the solenoid valve spring, and the sealing force acting on the solenoid valve small valve hole sealing glue is the force of the pressure difference between the upper and lower sides acting on the small valve hole Φ1 section plus the spring force of the solenoid valve spring, and the small valve hole Φ1 section is smaller than the large valve hole Φ2 section.
3. The line control valve according to claim 1, wherein the solenoid valve coil is energized, when an initial gap δ is provided between the solenoid valve plunger and the upper stator of the solenoid valve, the solenoid driving force acting on the solenoid valve plunger is smaller than the sealing force acting on the solenoid valve spool seal and larger than the sealing force acting on the solenoid valve spool seal, the solenoid driving force moves the solenoid valve plunger upward, the solenoid valve plunger and the solenoid valve spool seal move upward until the top surface of the shoulder abuts against the bottom surface of the upturn, the solenoid plunger moves the solenoid valve plunger and the solenoid valve spool seal upward by a gap δ 1 of a first opening stroke to open the inlet end face of the spool Φ1 by an opening having a width of the gap δ 1, the air inlet channel of the spool valve seat, the lower counterbore, the radial bore of the sliding sleeve, the air channel around the spool 1 to the air channel around the spool 1 form an air inlet channel of the spool 1, the air inlet channel of the spool 1 in the air channel above the spool 1 flows upward until the top surface of the shoulder abuts against the bottom surface of the upturn, thereby reducing the difference in the cross-sectional area of the spool 1 between the spool and the spool seal on the spool and the spool 1.
4. The line control valve according to claim 1, wherein after the solenoid valve plunger engages the gap δ1 of the first opening stroke, the solenoid driving force applied to the solenoid valve plunger and the solenoid valve plunger at the start of the second opening stroke increases, and after the solenoid valve plunger moves the solenoid valve plunger and the solenoid valve plunger to move the gap δ1 of the first opening stroke, the pressure difference between the air inlet and outlet sides of the solenoid valve plunger and the pressure difference applied to the solenoid valve plunger decreases, and the driving electromagnetic force applied to the solenoid valve plunger at the start of the second opening stroke increases, such that the driving force applied to the solenoid valve plunger is greater than the sealing force applied to the solenoid valve plunger to move the solenoid valve plunger, the solenoid valve slider, the solenoid valve seat and the solenoid valve plunger upward until the solenoid valve plunger top surface abuts against the bottom surface of the solenoid valve upper stator, and the solenoid valve plunger, the solenoid valve seat and the solenoid valve plunger upward move the solenoid valve plunger upward by the second opening stroke gap δ1, and the solenoid valve plunger upward, and the solenoid valve plunger opening seat upward move the second opening stroke, and the large opening gap Φ1 is opened by the second opening stroke width δ, and the opening gap 2 is opened by the second opening stroke.
5. The line control valve of claim 1, wherein after the solenoid valve coil is de-energized, electromagnetic forces acting on the solenoid valve plunger vanish, differential pressure forces and spring forces acting on both upper and lower sides of the solenoid valve plunger and the solenoid valve spool seal return the solenoid valve plunger, the solenoid valve slide sleeve, the solenoid valve spool seal, the solenoid valve spool seat and the solenoid valve plunger seal to close the line control valve.
6. The line control valve of claim 1, wherein the solenoid valve spool further comprises a hollow axial bore, a radial bore extending through the hollow axial bore.
7. The line control valve of claim 1, wherein the solenoid valve mount further comprises a bolt hole to which it is secured.
8. The pipeline control valve according to claim 1, wherein the solenoid valve large valve seat further comprises a solenoid valve large valve seat middle ring groove, and a high-low pressure cavity isolation sealing ring for isolating and sealing a high-low pressure cavity between the inlet and the outlet is arranged in the solenoid valve large valve seat middle ring groove.
9. The pipeline control valve according to claim 1, wherein the integral structure further comprises a solenoid valve housing, a solenoid valve coil is installed in the solenoid valve housing, upper and lower portions of the solenoid valve coil are respectively provided with an upper solenoid valve fixed iron and a lower solenoid valve fixed iron, and the solenoid valve upper fixed iron and the lower solenoid valve fixed iron are riveted into the integral structure by flanging of the solenoid valve housing.
10. The pipeline control valve according to claim 1, wherein a middle ring groove is further arranged between the upper ring groove and the lower ring groove, and a sealing ring is arranged in the middle ring groove for sealing.

Description

Pipeline control valve Technical Field The invention belongs to the technical field of electromagnetic valves, and particularly relates to a pipeline control valve. Background Along with the improvement of the emission requirements of automobiles and the requirement of energy diversification, the application of clean fuel on automobiles has great development potential, wherein, the real zero emission is realized because the emission of hydrogen fuel is water, the application of hydrogen fuel on hydrogen engine automobiles or hydrogen fuel battery automobiles is developed, the storage of hydrogen fuel on automobiles is stored by a high-pressure gas tank, the high-pressure gas tank is connected with a hydrogen utilization device by a pipeline, a control electromagnetic valve is arranged on the pipeline to control the opening and closing of a gas path, the stroke of an electromagnetic valve driving iron determines the opening size of the control valve to determine the excessive flow of the control valve, the pressure difference between an inlet and an outlet of the control electromagnetic valve is larger because the hydrogen pressure required by the hydrogen utilization device is relatively lower, the pipeline control valve can be opened by a larger driving force, as known from theory, the driving electromagnetic force of the electromagnetic valve and the reciprocal of the square of the moving iron stroke of the electromagnetic valve are in a direct proportion relation, when the control valve is in overcurrent, the moving iron stroke of the electromagnetic valve is needed to be large enough when the control valve is in overcurrent, when the moving iron stroke of the electromagnetic valve is large, the corresponding electromagnetic valve driving electromagnetic force is weak, the conventional single-stroke electromagnetic valve needs larger coil size to obtain enough magnetic potential to ensure the reliable opening of the control valve, the installation space on the automobile is limited to limit the outline boundary size of the control valve, the application of the conventional single-stroke electromagnetic valve is limited, in addition, the traditional electromagnetic valve installation method is to arrange a fixed bracket on the electromagnetic valve shell and a fixed screw hole on the electromagnetic valve installation seat to install the electromagnetic valve fixed bracket in a screw locking mode, the installation mode of arranging the fixed support on the electromagnetic valve shell requires larger transverse space and cannot be applied to occasions with compact structure and limited space. The above information disclosed in the background section is only for enhancement of understanding of the background of the invention and therefore may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Disclosure of Invention Aiming at the problems in the prior art, the invention provides a pipeline control valve which has the advantages of double stroke, large flow and high working pressure and is suitable for occasions with compact structure and limited space. The invention aims at realizing the following technical scheme that the pipeline control valve comprises: a solenoid valve coil, the lower end of which is provided with a convex ring, The lower fixed iron of the electromagnetic valve is arranged at the lower part of the electromagnetic valve coil and comprises an axle center through hole, a lower end counter bore positioned at the bottom end of the axle center through hole, an upper ring groove and a lower ring groove surrounding the axle center through hole, the convex ring stretches into the upper ring groove and is sealed by a sealing ring, The upper fixed iron of the electromagnetic valve is arranged at the upper part of the electromagnetic valve coil, the upper fixed iron of the electromagnetic valve and the lower fixed iron of the electromagnetic valve form an integral structure, A solenoid valve moving iron installed in the axial through hole, the solenoid valve moving iron having an axial hole, A solenoid valve core which is tightly fixed in the axle center hole and comprises a shaft shoulder which is vertical to the axial direction and protrudes outwards, A solenoid valve spring which is arranged between the fixed iron on the solenoid valve and the solenoid valve moving iron, one end of the solenoid valve spring is connected with a solenoid valve core, the other end of the solenoid valve spring is connected with the fixed iron on the solenoid valve, the elasticity of the solenoid valve spring pushes the solenoid valve moving iron away from the fixed iron on the solenoid valve when the solenoid valve coil is not electrified to form an initial gap delta of the total stroke of the solenoid valve moving iron, the lower end head of the solenoid valve core solidifies solenoid valve small hole sealant, An electromagnetic valve sliding sleeve