CN2306371Y

CN2306371Y - Enerty-saving diaphragm electromagnetic valve

Info

Publication number: CN2306371Y
Application number: CN 97236328
Authority: CN
Inventors: 管坤明
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-13
Filing date: 1997-06-13
Publication date: 1999-02-03
Anticipated expiration: 2007-06-13

Abstract

The utility model relates to an energy-saving diaphragm electromagnetic valve, comprising a valve body, a coil iron core and a valve port body which are arranged at the both ends of the valve body, an inlet pipe which is connected with the coil iron core, an outlet pipe which is connected with the valve port body, a coil, a small pole shoe and a permanent magnet fixing body which are positioned outside the valve body, a large pole shoe which is positioned outside the coil, the permanent magnet and the fixing body and a valve core arranged in the valve body. The inner part of the valve core is provided with a diaphragm and a spring. The diaphragm is attached to the sealing surface of the valve port body under the action of the spring. The utility model has the advantage of reasonable structure. Current is not needed to be kept when the electromagnetic valve works. The leakage of fluid material is less. The utility model also has the advantages of energy saving, long service life, etc.

Description

Diaphragm type energy-saving electromagnetic valve

The utility model relates to a kind of energy-saving electromagnetic valve, the energy-saving electromagnetic valve of particularly a kind of diaphragm seal valve port control flowing material switching.

Existing solenoid valve needs the bigger electric current of keeping in when work, and not only energy consumption is big, and coil electric current by the time higher temperature rise is arranged, be easy to burn, shortened the working life of solenoid valve.Chinese patent 95241148.2, a kind of energy-conservation reversing solenoid valve is disclosed, although it has overcome the defective that above-mentioned solenoid valve exists, it is little to have energy consumption, coil does not have temperature rise, characteristics such as long service life, but because its adopts is the switching that the steel ball sealing valve port is controlled flowing material, this structure causes the seepage of flowing material easily, is subjected to certain restriction in actual use.

The purpose of this utility model is to need not when a kind of rational in infrastructure, solenoid valve work will be provided to keep that electric current, flowing material seepage are little, energy-conservation, the diaphragm type energy-saving electromagnetic valve of long service life.

The purpose of this utility model is achieved like this, a kind of diaphragm type energy-saving electromagnetic valve, it includes valve body 13, be installed in the iron-core coil 2 of valve body 13 2 ends, valve port 6, the inlet pipe 1 that is connected with iron-core coil 2, what be connected with valve port 6 goes out to manage 7, be installed in the coil 8 of valve body 13 outsides, little pole shoe 10, permanent magnet 11, fixed body 12, be positioned at coil 8, permanent magnet 11, the big pole shoe 5 of fixed body 12 outsides and be located at spool 9 in the valve body 13, in described spool 9, be provided with diaphragm 4, spring 3, diaphragm 4 fit with the sealing surface 17 of valve port 6 under the effect of spring 3.

Below in conjunction with accompanying drawing the utility model is further described below.

Accompanying drawing is a structure diagram of the present utility model.

Iron-core coil 2 of the present utility model, valve port 6 are installed in two ends of valve body 13 respectively.Have through hole 15 on iron-core coil 2, the pipeline in through hole 15 and the inlet pipe 1 communicates.Iron-core coil 2 can adopt Ferritic Stainless Steel to be made, and has the magnetic pole groove on an end end face of iron-core coil 2, to improve the adhesive stability and the vibration resistance of iron-core coil 2 and spool 9.Have through hole 16 on valve port 6, through hole 16 communicates with the pipeline that goes out to manage in 7.Valve port 6 can adopt Austenitic Stainless Steel to be made, and is provided with sealing surface 17 at an end of valve port 6, is the pass valve when sealing surface 17 and diaphragm 4 match, and is out valve when sealing surface 17 breaks away from diaphragm 4.The utility model is when closing valve, because diaphragm 4 has automatic adjustment function, promptly no matter whether sealing surface 17 has inclination, diaphragm 4 can fit together with sealing surface 17, so the seepage of flowing material is minimum.

Valve body 13 of the present utility model is an Austenitic Stainless Steel, in valve body 13, be provided with spool 9, spool 9 is a Ferritic Stainless Steel, in spool 9, be provided with diaphragm 4, spring 3, on diaphragm 4, have notch 14, when the valve opening solenoid valve, flowing material can flow in the valve body 13 by inlet pipe 1 via through holes 15, flows into out in the pipe 7 behind notch 14 via through holes 16 by diaphragm 4 again.Be separately installed with coil 8, little pole shoe 10, fixed body 12 in the outside of valve body 13, be provided with big pole shoe 5 in the outside of coil 8, permanent magnet 11, fixed body 12, permanent magnet 11 is between large and small pole shoe 5,10.Large and

small pole shoe

5,10 is ironware, the magnetic line of force of permanent magnet 11 can pass through big pole shoe 5, iron-core coil 2, spool 9, loop of little pole shoe 10 formation, fixed body 12 is used for the location to permanent magnet 11, large and

small pole shoe

5,10 and valve port 6, and fixed body 12 can adopt epoxy resin to be made.

During the utility model work, setting permanent magnet 11 is the N utmost point by big pole-shoe face, logical positive current in coil 8, spool 9 is geomagnetic into the diaphragm end and is the N utmost point, spool 9 interlock diaphragms 4 are under the effect of coil magnetic line of force magnetic field superposition magnetic field of permanent magnet like this, overcome behind the elastic force of spring 3 and iron-core coil 2 adhesives, at this moment diaphragm 4 comes with sealing surface 17 disengagings of valve port 6, the flowing material that is positioned at valve body 13 just by the notch 14 of diaphragm 4 flow through valve port 6 through hole 16 and enter out the pipeline of pipe 7, solenoid valve is out the valve state, when stopping energising, promptly coil magnetic line of force magnetic field disappears, spool 9, diaphragm 4 is being opened the valve state by magnetic field of permanent magnet is constant.Logical negative current in coil 8, spool 9 is by magnetic reversal, the magnetic line of force magnetic field and the magnetic field of permanent magnet of coil 8 generations are at this moment cancelled out each other, spool 9, diaphragm 4 under the elastic force effect of spring 3 bullet to valve port 6 one ends, diaphragm 4 is fitted with the sealing surface 17 of valve port 6, flowing material is closed in the valve body 13, and solenoid valve is close valve state.

The utility model just can remain on the state when switching on because after having adopted said structure, solenoid valve only need lead to primary current, so coil does not have temperature rise, makes solenoid valve have advantages such as energy-conservation, long service life; Simultaneously, pass of the present utility model valve is to realize by the applying of diaphragm 4 with the sealing surface 17 of valve port 6, so seepage is minimum, can be widely used in automation control and refrigeration industry.

Claims

1, a kind of diaphragm type energy-saving electromagnetic valve, it includes valve body (13), be installed in the iron-core coil (2) of valve body (13) two ends, valve port (6), the inlet pipe (1) that is connected with iron-core coil (2), what be connected with valve port (6) goes out pipe (7), be installed in the outside coil (8) of valve body (13), little pole shoe (10), permanent magnet (11), fixed body (12), be positioned at coil (8), permanent magnet (11), the big pole shoe (5) that fixed body (12) is outside and be located at spool (9) in the valve body (13), it is characterized in that in described spool (9), being provided with diaphragm (4), spring (3), diaphragm (4) fit with the sealing surface (17) of valve port (6) under the effect of spring (3).

2, diaphragm type energy-saving electromagnetic valve according to claim 1 is characterized in that having through hole (15) on iron-core coil (2), the pipeline in through hole (15) and the inlet pipe (1) communicates.

3, diaphragm type energy-saving electromagnetic valve according to claim 1 is characterized in that having through hole (16) on valve port (6), through hole (16) pipeline interior with going out pipe (7) communicates.

4, diaphragm type energy-saving electromagnetic valve according to claim 1 is characterized in that having notch (14) on diaphragm (4).

5, diaphragm type energy-saving electromagnetic valve according to claim 1 is characterized in that permanent magnet (11) is positioned between large and small pole shoe (5), (10).