CN207298027U - A kind of gases at high pressure special electromagnetic valve of suitable Width funtion - Google Patents

Abstract

The utility model discloses a kind of gases at high pressure special electromagnetic valve of suitable Width funtion, including a valve body, a spool housing, a spool, an active iron and a spring shaft；Spool housing is provided with an enclosure slot；A valve seat block is provided with spool；Once spool is set on spool, a compression body for being cased with time spring is provided with secondary spool, gas outlet and air inlet are additionally provided with valve body, the valve wall upper end of gas outlet is provided with a bevel edge, the material of spool housing and active iron is changed to ferritic stainless steel by the utility model, and add enclosure slot, the useful effect power that magnetic force produces spool can be improved, reduce the requirement to operating voltage, simultaneously as housing reduces embedded yoke, improve Corrosion Protection, eliminate the guiding department of time spool, coordinate spool again, spring shaft, the size adjusting of the parts such as compression body, stroke can be reduced on the premise of circulation area is not influenced, the service life of spool can be improved by using bevel edge instead.

Description

A kind of gases at high pressure special electromagnetic valve of suitable Width funtion

Technical field

Solenoid valve market is the utility model is related to, particularly with regard to a kind of gases at high pressure Special electromagnetic of suitable Width funtion Valve.

Background technology

Solenoid valve extensive use in the supply of the fluids such as liquid, gas, transmission, control and dynamical system, solenoid valve is normally opened Carry out self-locking by electromagnetic attraction, gas pressure and spring force with normally closed static working status, reach and valve is turned on and is ended The purpose of control, is the key components and parts of whole system.

Metered flow and power attenuation are to weigh the important indicator of solenoid valve.Solenoid valve metered flow depends primarily upon electromagnetism The mechanical structure of valve, increases the volume of fluid flow in valve body, the mobile displacement for increasing spool, the circulation coefficient for improving valve body etc. Metered flow can be increased.Solenoid valve power attenuation mainly relies on the improvement of electromagnetic valve coil, including the driving voltage of coil, Electric current, coil turn, coil inductance, resistance, the permeability etc. of magnetic resistance and soft magnetic materials；Also depending on solenoid valve valve The size of opening force, opening force is smaller, then the power requirement of solenoid valve is smaller.

Higher for pressure, the larger application scenario of flow, then require the unlatching magnetic force of solenoid valve very high, to Packing spring The coefficient of stiffiness, the leakproofness of sealed valve body has high requirements, and problems with easily occurs：

For the solenoid valve of gases at high pressure control system after gas enters from entrance, gas will produce spool pressure, pressure Force value is related to gas pressure intensity and spool area, such as：The gas of 20Mpa, valve core diameter 5mm, pressure of the gases at high pressure to spool Power reaches 392.5N, this electromagnetic force to coil requires very high.Influence solenoid valve metered flow most critical factor be fluid into, The shape journey of outlet stream area and spool, the area of the more big then spool of circulation area is bigger, and sealing ring thickness or line footpath are then bigger, This requires the shape Cheng Yue of spool big.The magnetic field that coil produces is the continuously distributed passive vector for having rotation in certain space region , the magnetic line of force is the curve of closure, and magnetic induction intensity refers to the magnetic force passed through on the unit area vertical with magnetic line of force direction Line number mesh, more remote with the distance in magnetic field, then magnetic induction intensity is weaker, and magnetic force is weaker.Thus spool shape Cheng Yue is big, then magnetic when powering off The working clearance of iron is bigger, then it is higher that magnetic induction intensity requirement is produced to coil.

Utility model content

The technical problem to be solved by the utility model is to provide one kind on the premise of original performance is not influenced, adjustment The gases at high pressure special electromagnetic valve of the suitable Width funtion of the structure of valve core inside.

A kind of gases at high pressure special electromagnetic valve of suitable Width funtion, including a valve body, one it is wound with the spool housing of coil, one Spool, an active iron and one are arranged on the spring shaft that spring is cased with the active iron；The spool housing is arranged on described On valve body, the spool is arranged between valve body and spool housing, and the active iron is arranged on the spool, the spring shaft One end withstand spool housing, it is characterised in that the spool housing is provided with an enclosure slot；It is provided with the spool One limits the valve seat block of spool stroke position；One is provided with the spool has the secondary spool of mobile terminal and sealed end, A compression body for being cased with time spring is provided with the secondary spool, gas outlet and air inlet are additionally provided with the valve body, The valve wall upper end of the gas outlet, which is provided with one, has the bevel edge of certain taper.

In a preferred embodiment of the utility model, the spool housing, active iron use ferritic stainless steel It is made.

In a preferred embodiment of the utility model, the diameter of the mobile terminal of the secondary spool is less than or equal to sealing The diameter at end.

In a preferred embodiment of the utility model, axial one end of the spool housing is provided with a positioning Nut and a nut seal circle.

In a preferred embodiment of the utility model, a valve core seal ring and a valve are provided with the spool Core O-ring seal.

In a preferred embodiment of the utility model, it is close that a housing is provided between the spool housing and valve body Seal.

Due to the adoption of the above technical scheme, the beneficial effects of the utility model are：

1st, the material of spool housing is changed to ferritic stainless steel from brass, eliminates and embedded the knot of yoke in housing originally Structure, and enclosure slot is added, the useful effect power that magnetic force produces spool can be improved, reduces the requirement to operating voltage, together Shi Yinwei housings reduce embedded yoke, improve Corrosion Protection.

2nd, the material of active iron is changed to ferritic stainless steel from iron chromium plating, can improve the useful effect that magnetic force produces spool Power, reduces the requirement to operating voltage, while can improve Corrosion Protection.

3rd, the guiding department of time spool is eliminated, then coordinates the size adjusting of the parts such as spool, spring shaft, compression body, can Stroke is reduced on the premise of circulation area is not influenced, the useful effect power that magnetic force produces spool can be improved, is reduced to work The requirement of voltage.

Brief description of the drawings

Fig. 1 is a kind of structure diagram of the gases at high pressure special electromagnetic valve of suitable Width funtion of the utility model.

Fig. 2 is that a kind of preliminary opening of gases at high pressure special electromagnetic valve of suitable Width funtion of the utility model is illustrated Figure.

Fig. 3 is that a kind of fully open state of gases at high pressure special electromagnetic valve of suitable Width funtion of the utility model is illustrated Figure.

Embodiment

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

A kind of gases at high pressure special electromagnetic valve of suitable Width funtion shown in Figure 1, including a valve body 100, one are wound with The spool housing 200 of coil 210, a spool 300, an active iron 400 and one, which are arranged in active iron 400, is cased with spring 510 Spring shaft 500；Spool housing 200 is arranged on valve body 100, spool 300 be arranged on valve body 100 and spool housing 200 it Between, active iron 400 is arranged on spool 300, and spool housing 200 is withstood in one end of spring shaft 500.

Spool housing 200 is provided with an enclosure slot 220, the useful effect power that magnetic force produces spool can be improved, reduces Requirement to operating voltage, simultaneously as housing reduces embedded yoke, improves Corrosion Protection.

The valve seat block 310 of 310 travel position of a restriction spool is provided with spool 300；It is provided with spool 300 One has the secondary spool 320 of mobile terminal 321 and sealed end 322, in the present embodiment, the mobile terminal 321 of secondary spool 320 it is straight Footpath is less than or equal to the diameter of sealed end 322, and the diameter of sealed end 322 is big, can reach better seal effect, mobile terminal 321 diameter is smaller, and the high-pressure gas pressure being subject to is also with regard to smaller, it is easier to opens time spool 320.

A compression body 330 for being cased with time spring 331 is provided with secondary spool 320, outlet is additionally provided with valve body 100 Mouth 110 and air inlet 120, air inlet 110 are arranged on the both sides of gas outlet 120, are set positioned at 130 upper end of valve wall of gas outlet 120 Being equipped with one has the bevel edge 140 of certain taper, and original right-angle side is changed to bevel edge 140, right angle can be avoided to make spool Into infringement.

In the present embodiment, spool housing 200, active iron 400 are made of ferritic stainless steel, have the coefficient of expansion It is the characteristics of small, good in oxidation resistance, excellent stress corrosion resistant, cheap, it is practical, further reduce production cost.

In the present embodiment, axial one end of spool housing 200 is provided with a location nut 230 and a nut is close Seal 240, location nut 230 are mainly placed on outside spool housing 200, protect spool housing 200, and play the effect of beauty, spiral shell Female sealing ring 240 mainly plays sealing.

In the present embodiment, a valve core seal ring 340 and a spool O-ring seal 350 are provided with spool 300, It is main to play sealing.

In the present embodiment, a housing seal circle 600 is provided between spool housing 200 and valve body 100.

During installation, secondary spool 320 is put into compression body 330, then one end press-in compression body 330 of active iron 400, secondary valve Core 320 can move axially between compression body 330 and active iron 400；Secondly, valve seat block 310 is sleeved on active iron 400 and spool Between, secondary spring 331 is sleeved on outside compression body 330, and valve seat block 310 can move axially between secondary spring 331 and active iron 400； Spool 300 and valve seat block 310 are together by a threaded connection, and spool 300 can axially move；By valve core seal ring 340 and valve Spring 510 is sleeved on spring shaft 500 by core O types sealing ring 350 on spool；Finally load spool housing 200, housing is close Seal 600 is sleeved in spool housing 200, and coil 210 is sleeved in spool housing 200, and nut seal circle 240 is mounted in location nut After on 230, location nut 220 is screwed on into spool housing 200 to lock coil 210.

A kind of operation principle of the gases at high pressure special electromagnetic valve of suitable Width funtion of the utility model：

A kind of closing state schematic diagram of the gases at high pressure special electromagnetic valve of suitable Width funtion shown in Figure 1, when in During off-position, solenoid valve is closed, and gas is entered by air inlet, and spool housing is entered by spool, at this time, the pressure of air inlet Power is more than the pressure of gas outlet, and spool is compressed with time spool by the gases at high pressure in spool housing.

A kind of signal of the preliminary opening of the gases at high pressure special electromagnetic valve of suitable Width funtion shown in Figure 2 Figure, after energization, produces electromagnetic force between active iron and spool housing and mutually adsorbs, after the pressure for overcoming time spring, active iron Compression body is driven to produce displacement, after displacement certain distance, the electromagnetic force between active iron and spool housing is due to distance reduction And be multiplied, pressure of the gases at high pressure to secondary spool is overcome, time spool is separated with spool, gases at high pressure can be at this time Circulate between air inlet, gas outlet and spool, spool is in the state of balance, and solenoid valve tentatively opens completion.

A kind of signal of the fully open state of the gases at high pressure special electromagnetic valve of suitable Width funtion shown in Figure 3 Figure, after preliminary opening, is adsorbed, gas communication stream completely between active iron and spool housing because being subject to electromagnetic force Freely, the distance between active iron and spool housing are reduced to 0, and secondary spring is compressed, and compressed secondary spring produces thrust and promotes Spool, makes spool completely separable with gas outlet, and solenoid valve fully opens completion.

The advantages of basic principle and main feature and the utility model of the utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Simply illustrate the utility model principle, on the premise of not departing from the spirit and scope of the utility model, the utility model is also Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed scope is defined by the appending claims and its equivalent thereof.

Claims (6)

1. a kind of gases at high pressure special electromagnetic valve of suitable Width funtion, including a valve body, one it is wound with the spool housing of coil, a valve Core, an active iron and one are arranged on the spring shaft that spring is cased with the active iron；The spool housing is arranged on the valve On body, the spool is arranged between valve body and spool housing, and the active iron is arranged on the spool, the spring shaft Withstand spool housing in one end, it is characterised in that the spool housing is provided with an enclosure slot；One is provided with the spool Limit the valve seat block of spool stroke position；One is provided with the spool has the secondary spool of mobile terminal and sealed end, A compression body for being cased with time spring is provided with the secondary spool, gas outlet and air inlet, position are additionally provided with the valve body The valve wall upper end of the gas outlet is provided with a bevel edge.

A kind of 2. gases at high pressure special electromagnetic valve of suitable Width funtion as claimed in claim 1, it is characterised in that the spool Housing, active iron are made of ferritic stainless steel.

A kind of 3. gases at high pressure special electromagnetic valve of suitable Width funtion as claimed in claim 1, it is characterised in that the secondary valve The diameter of the mobile terminal of core is less than or equal to the diameter of sealed end.

4. a kind of gases at high pressure special electromagnetic valve of suitable Width funtion as claimed in claim 1, it is characterised in that in the valve Axial one end of core shell body is provided with a location nut and a nut seal circle.

5. a kind of gases at high pressure special electromagnetic valve of suitable Width funtion as claimed in claim 1, it is characterised in that in the valve A valve core seal ring and a spool O-ring seal are provided with core.

6. a kind of gases at high pressure special electromagnetic valve of suitable Width funtion as claimed in claim 1, it is characterised in that in the valve A housing seal circle is provided between core shell body and valve body.