CN101956859A

CN101956859A - Natural gas electromagnetic valve

Info

Publication number: CN101956859A
Application number: CN 201010299947
Authority: CN
Inventors: 段学忠; 刘洪霞; 胡兆华; 刘刚; 陈丹燕; 李海英; 邵真贵; 毋会卿
Original assignee: Henan Aerospace Pressure Element Co Ltd
Current assignee: Henan Aerospace Hydraulic and Pneumatic Technology Co Ltd
Priority date: 2010-10-08
Filing date: 2010-10-08
Publication date: 2011-01-26
Anticipated expiration: 2030-10-08
Also published as: CN101956859B

Abstract

The invention relates to a natural gas electromagnetic valve, which comprises a valve body, wherein the valve body comprises an inlet section and an outlet section; the inlet section and the outlet section are partitioned through a partition board; the periphery of the valve body is provided with at least two valve passages; the valve body corresponding to the valve passages is provided with valve core assemblies for partitioning or conducting the corresponding valve passages; and the valve core assembly comprises an armature, a guide sleeve covered outside the armature, a coil around the guide sleeve and a return spring arranged between the guide sleeve and the armature. The inlet section and the outlet section of the natural gas electromagnetic valve are partitioned through the partition board, the periphery of the valve is provided with the at least two valve passages, and each valve passage is provided with the corresponding valve core assembly to control the opening and closing of the corresponding valve passage so as to gradually open the valve passages, gradually accumulate the flow in a conveying pipeline, avoid flow surge caused by fully communicating the inlet section and the outlet section of the valve body at one time and prevent the flow surge of the conveying pipeline from sharply impacting monitoring equipment.

Description

A kind of rock gas solenoid valve

Technical field

The present invention relates to valve technology field, especially a kind of rock gas solenoid valve.

Background technique

In line transportation, need on pipeline, be connected in series valve, in recent years,, and have rapid and convenient, advantage such as remote controlled along with the fast development of solenoid valve, the application of solenoid valve in pipeline increases gradually; But, in the bigger pipeline of some calibers is carried, as natural gas transport etc., because the flow in the pipeline is relatively large, and existing solenoid valve mostly is single armature, in use, and moving a conducting or disconnecting delivery line by armature, because the latus rectum of pipeline is bigger, when armature was once opened all pipelines, flow moment sharply increased, and cause enormous impact so just can for flow monitoring equipment, when serious, even can damage monitoring equipment.

Summary of the invention

The object of the present invention is to provide a kind of rock gas solenoid valve, to solve the problem of existing solenoid valve severe impact flow monitoring equipment when opening.

In order to address the above problem, rock gas solenoid valve of the present invention is by the following technical solutions: a kind of rock gas solenoid valve, comprise valve body, described valve body comprises inducer and outlet section, described inducer and outlet section cut off by the dividing plate that is arranged between the two, the outer periphery of valve body is equipped with at least two valve passages, corresponding described valve passage place is provided with and is used to cut off or the mangetic core assembly of the corresponding valve passage of conducting on the valve body, and described mangetic core assembly comprises armature, cover at the guide sleeve of described armature outside, be located in the coil of described guide sleeve periphery and be mounted on guide sleeve and armature between Returnning spring.

The outer periphery of described valve body is equipped with main valve passage and secondary valve passage, and described main valve passage comprises first through hole that communicates with described inducer and second through hole that communicates with described outlet section; Secondary valve passage comprises third through-hole that communicates with inducer and the fourth hole that communicates with outlet section; The outer cup of described main valve passage is provided with valve gap, be provided with flap in the valve gap, valve gap is tightly connected with the guide sleeve of corresponding mangetic core assembly, flap connects with the armature of corresponding mangetic core assembly away from an end of valve body, flap seals at least one in described first, second through hole under the off-position of the coil of the mangetic core assembly of correspondence, the 3rd, in the fourth hole at least one under the off-position of corresponding mangetic core assembly by corresponding armature sealing.

The guide sleeve of the mangetic core assembly of secondary valve passage correspondence is covered with secondary valve passage and is threaded in valve body; Valve gap is connected by bolt with valve body, and the guide sleeve of the mangetic core assembly of main valve passage correspondence is threaded with the side of valve gap away from valve body.

Has the annular groove that communicates with described first through hole in the scope being covered with of valve gap around described second through hole.

Described flap connects by spring with the armature of corresponding mangetic core assembly, have respectively balance inlet hole, balance exhaust port that the inlet/outlet with described valve body connects on the flap, described balance inlet and outlet hole connects the both ends of the surface of flap, and the balance exhaust port seals by corresponding armature under the off-position of the coil of corresponding mangetic core assembly.

The endoporus of the guide sleeve of described each mangetic core assembly is a step hole, the armature slidable fit is in the path hole of the step hole of guide sleeve, armature has the retaining edge near an end of the opening of corresponding guide sleeve, and the Returnning spring of the mangetic core assembly of described secondary valve passage correspondence is mounted between the step surface of corresponding armature and guide sleeve; The Returnning spring of the mangetic core assembly of main valve passage correspondence is mounted between corresponding armature and the inner side surface of corresponding guide sleeve away from an end of valve body.

Described flap has flap retaining edge away from an end of valve body, and flap articulates by spring with corresponding armature.

Because rock gas solenoid valve of the present invention cuts off its inducer and outlet section by dividing plate, and upwards be arranged to few two valve passages week, corresponding mangetic core assembly is set on each valve passage controls the folding of corresponding valve passage, thereby can progressively open each bar valve passage, flow in the transmission pipeline is progressively added up, avoid because of once fully conducting valve body inducer and outlet section cause flow to be uprushed, and then prevent because of the delivery line flow severe impact monitoring equipment of uprushing.

Further, described valve passage is divided into major and minor valve passage, and at described main valve passage place flap is set, the armature by correspondence drives the folding that flap is controlled the main valve passage, like this can be under the constant prerequisite of the radial dimension that keeps corresponding armature suitable expansion main valve passage; The guide sleeve of the mangetic core assembly of secondary valve passage correspondence is covered with secondary valve passage and is spirally connected with valve body, help being sealed and matched between the guide sleeve of valve body and corresponding mangetic core assembly like this, prevent gas leakage, the guide sleeve and the valve gap of the mangetic core assembly of main valve passage correspondence are spirally connected simultaneously, also are for the ease of sealing; Described flap connects by spring with the armature of corresponding mangetic core assembly, balance is set on flap to be advanced, relief opening, like this can be when secondary valve passage be at first opened, guarantee pressure balance between the flap both ends of the surface by the balance inlet hole that communicates with described annular groove, avoid flap being backed down because of valve outlet place pressure is excessive, when needs are opened the main valve passage, corresponding armature moves and opens balance exhaust port (owing to being to flexibly connect by spring), by the balance exhaust port flap is discharged with the pneumatosis between the corresponding guide sleeve, and then drive flap and move, thereby open the main valve passage; In the armature corresponding end retaining edge is set, Returnning spring can be mounted between described step surface and the described retaining edge, be convenient to the dismounting and change spring; Flap is continued to use spring by its flap retaining and is articulated with corresponding armature, makes things convenient for connection like this and dismantles.

Description of drawings

Fig. 1 is a kind of embodiment's of a rock gas solenoid valve of the present invention structural representation.

Embodiment

The embodiment 1 of rock gas solenoid valve of the present invention, as shown in Figure 1, by valve body 1, mangetic core assembly, flap 2 and the valve gap 3 that covers at flap 2 outsides are formed, valve body 1 is the tubular construction of both ends open, one end of valve body 1 has inducer 4, the other end has outlet section 5, has the dividing plate 6 that is used to cut off inducer 4 and outlet section 5 in the valve body 1, has first of correspondence on the outer circumferential face of valve body 1, second plane, has the main valve passage on first plane, the main valve passage comprises respectively and the advancing of valve body, first through hole 7 and second through hole 8 that outlet communicates, the periphery in second through hole 8 on the valve body 1 has first annular groove 9 that connects with first through hole 7; Has secondary valve passage on second plane, secondary valve passage comprises respectively and the advancing of valve body 1, third through-hole 10 and fourth hole 11 that outlet communicates, periphery in secondary valve passage on the valve body 1 has swivel nut 12, be fixedly connected with valve gap 3 by bolt 40 on first plane, be provided with first seal ring 13 between valve gap 3 and the valve body 1, be provided with flap 2 in the valve gap 3, flap 2 circumferentially be provided with the support ring 14 that is used for cooperating the notch that seals first annular groove 9 with flap 2, clamped first seal washer 15 between one side of support ring 14 close valve bodies 1 and the valve body 1, the outer circumferential face of flap 2 cooperates with 15 slipper seals of first seal washer; Flap 2 has column 16 near the end face center of an end of valve body 1, upwards has second annular groove 17 in the week of column 16 on the flap 2, be filled with second seal washer 18 in second annular groove 17, has thread section on the column 16, second seal washer 18 is sheathed on the column 16 and compresses the back by shelves ring 42 and fixes by the locknut 19 that is bolted on the column 16, have axial balance exhaust port 20 on the column 16, also have the balance inlet hole 21 that communicates with first annular groove 9 on the flap 2; Mangetic core assembly comprises first mangetic core assembly and second mangetic core assembly, and first mangetic core assembly comprises first armature 24, cover at first guide sleeve 25 of first armature, 24 outsides, be located in first coil 26 and first Returnning spring 27 of first guide sleeve, 25 peripheries; Second mangetic core assembly comprises second armature 28, cover at second guide sleeve 29 of second armature, 28 outsides, be located in second coil 30 and second Returnning spring 31 of second guide sleeve, 29 peripheries, the endoporus of first, second guide sleeve is step hole, the corresponding slidable fit of first, second armature is in the path hole of first, second guide sleeve, the opening end of first, second guide sleeve has outside thread respectively, valve gap 3 has tapped hole away from an end of valve body 1, first guide sleeve 25 is spirally connected with valve gap 3, is provided with seal ring between the two; Flap 2 has the flap retaining along 32 away from an end of valve body 1, has corresponding retaining edge on first armature 24, the flap 2 and first armature 24 articulate by spring 33, first armature 24 is sealed and matched with balance exhaust port 20 under the off-position of first coil 26, and flap 2 is sealed and matched with second through hole 8 under the off-position of first coil 26; First armature 24 has axial blind hole away from an end of flap, first Returnning spring 27 is arranged in the axial blind hole, be provided with first parallels 34 in first guide sleeve 25, first Returnning spring 27 is mounted between the sealing end inboard and first parallels 34 of axial blind hole, first parallels 34 is used to limit the stroke of first armature 24, and the outer cup of first coil 26 is provided with the first coil guard shield 35; Second guide sleeve 29 and swivel nut 12 corresponding being spirally connected are provided with seal ring between the two, second armature 28 has the retaining edge near an end of valve bodies 1, the retaining that second Returnning spring 31 is mounted on the step surface of endoporus of second guide sleeve 29 and second armature 28 along between; The outer cup that is provided with second parallels, 36, the second coils 30 that are used to limit second armature, 28 strokes in second guide sleeve 29 is provided with the second corresponding coil guard shield 37.

Claims

1. rock gas solenoid valve, comprise valve body, it is characterized in that: described valve body comprises inducer and outlet section, described inducer and outlet section cut off by the dividing plate that is arranged between the two, the outer periphery of valve body is equipped with at least two valve passages, corresponding described valve passage place is provided with and is used to cut off or the mangetic core assembly of the corresponding valve passage of conducting on the valve body, described mangetic core assembly comprise armature, cover at the guide sleeve of described armature outside, be located in the coil of described guide sleeve periphery and be mounted on guide sleeve and armature between Returnning spring.

2. rock gas solenoid valve according to claim 1, it is characterized in that: the outer periphery of described valve body is equipped with main valve passage and secondary valve passage, and described main valve passage comprises first through hole that communicates with described inducer and second through hole that communicates with described outlet section; Secondary valve passage comprises third through-hole that communicates with inducer and the fourth hole that communicates with outlet section; The outer cup of described main valve passage is provided with valve gap, be provided with flap in the valve gap, valve gap is tightly connected with the guide sleeve of corresponding mangetic core assembly, flap connects with the armature of corresponding mangetic core assembly away from an end of valve body, flap seals at least one in described first, second through hole under the off-position of the coil of the mangetic core assembly of correspondence, the 3rd, in the fourth hole at least one under the off-position of corresponding mangetic core assembly by corresponding armature sealing.

3. rock gas solenoid valve according to claim 2 is characterized in that: the guide sleeve of the mangetic core assembly of secondary valve passage correspondence is covered with secondary valve passage and is threaded with valve body; Valve gap is connected by bolt with valve body, and the guide sleeve of the mangetic core assembly of main valve passage correspondence is threaded with the side of valve gap away from valve body.

4. rock gas solenoid valve according to claim 2 is characterized in that: have the annular groove that communicates with described first through hole in the scope being covered with of valve gap around described second through hole.

5. rock gas solenoid valve according to claim 2, it is characterized in that: described flap connects by spring with the armature of corresponding mangetic core assembly, have respectively balance inlet hole, balance exhaust port that the inlet/outlet with described valve body connects on the flap, described balance inlet and outlet hole connects the both ends of the surface of flap, and the balance exhaust port seals by corresponding armature under the off-position of the coil of corresponding mangetic core assembly.

6. rock gas solenoid valve according to claim 2, it is characterized in that: the endoporus of the guide sleeve of described each mangetic core assembly is a step hole, the armature slidable fit is in the path hole of the step hole of guide sleeve, armature has the retaining edge near an end of the opening of corresponding guide sleeve, and the Returnning spring of the mangetic core assembly of described secondary valve passage correspondence is mounted between the step surface of corresponding armature and guide sleeve; The Returnning spring of the mangetic core assembly of main valve passage correspondence is mounted between corresponding armature and the inner side surface of corresponding guide sleeve away from an end of valve body.

7. rock gas solenoid valve according to claim 2 is characterized in that: described flap has flap retaining edge away from an end of valve body, and flap articulates by spring with corresponding armature.