CN101956859B

CN101956859B - Natural gas electromagnetic valve

Info

Publication number: CN101956859B
Application number: CN2010102999479A
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: 2012-06-27
Anticipated expiration: 2030-10-08
Also published as: CN101956859A

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, like 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 breaking off delivery line through armature; Because the latus rectum of pipeline is bigger, when armature was once opened all pipelines, flow moment sharply increased; 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 adopts following technological scheme: a kind of rock gas solenoid valve; Comprise valve body; Said valve body comprises inducer and outlet section, and said inducer and outlet section cut off through the dividing plate that is arranged between the two, and the outer periphery of valve body is equipped with at least two valve passages; Corresponding said 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 comprises armature, cover at the outside guide sleeve of said armature, be located in the coil of said 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 said inducer and second through hole that communicates with said 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, and flap seal at least one in said first, second through hole under the off-position of the coil of the mangetic core assembly of correspondence, and the 3rd, in the fourth hole at least one seal through corresponding armature under the off-position of corresponding mangetic core assembly.

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

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

Described flap connects through spring with the armature of corresponding mangetic core assembly; Have respectively balance inlet hole, balance exhaust port that the inlet/outlet with said 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 through corresponding armature under the off-position of the coil of corresponding mangetic core assembly.

The endoporus of the guide sleeve of said 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 the guide sleeve of correspondence, and the Returnning spring of the mangetic core assembly that said secondary valve passage is corresponding is mounted between the step surface of corresponding armature and guide sleeve; The Returnning spring of the mangetic core assembly that the main valve passage is corresponding 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 through spring with corresponding armature.

Because rock gas solenoid valve of the present invention cuts off its inducer and outlet section through 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, the 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 said main valve passage place flap is set, the armature through 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 that secondary valve passage is corresponding 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 that the main valve passage is corresponding simultaneously are spirally connected, and also are for the ease of sealing; Described flap connects through spring with the armature of corresponding mangetic core assembly; Balance inlet and outlet mouth is set on flap, can when secondary valve passage is at first opened, guarantees the pressure balance between the flap both ends of the surface like this through the balance inlet hole that communicates with said annular groove; Avoid flap being backed down because of valve outlet place pressure is excessive; When needs were opened the main valve passage, corresponding armature moved and opens balance exhaust port (owing to being to flexibly connect through spring), through the balance exhaust port flap was 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, can Returnning spring be mounted between said step surface and the said retaining edge, be convenient to the dismounting and change spring; Flap is continued to use spring through its flap retaining and is articulated with corresponding armature, convenient like this connection and dismounting.

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 cover at the outside valve gaps 3 of flap 2 and form, 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, second corresponding plane on the outer circumferential face of valve body 1; Have the main valve passage on first plane, the main valve passage comprises first through hole 7 and second through hole 8 that communicates with the inlet/outlet of valve body respectively, 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 the third through-hole 10 and fourth hole 11 that communicates with the inlet/outlet of valve body 1 respectively; Have on swivel nut 12, the first planes in the periphery of secondary valve passage on the valve body 1 and be fixedly connected with valve gap 3, be provided with first seal ring 13 between valve gap 3 and the valve body 1 through bolt 40; 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, support ring 14 is near having clamped first seal washer 15 between side of valve body 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, have thread section on the column 16, second seal washer 18 is sheathed on the column 16 and compresses the back through shelves ring 42 and fixes through 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 the first outside guide sleeve 25 of first armature 24, 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 the second outside guide sleeve 29 of second armature 28, 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, and 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 through 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, and 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 body 1, second Returnning spring 31 be mounted on second guide sleeve 29 endoporus step surface and second armature 28 retaining 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: said valve body comprises inducer and outlet section; Said inducer and outlet section cut off through the dividing plate that is arranged between the two, and 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 said inducer and second through hole that communicates with said outlet section; Secondary valve passage comprises third through-hole that communicates with inducer and the fourth hole that communicates with outlet section; Corresponding said major and minor valve passage place is provided with respectively 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 comprises armature, cover at the outside guide sleeve of said armature, be located in the coil of said guide sleeve periphery and be mounted on guide sleeve and armature between Returnning spring; 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 said first, second through hole under the off-position of the coil of the mangetic core assembly of correspondence, and the 3rd, through corresponding armature sealing, the guide sleeve of the mangetic core assembly that secondary valve passage is corresponding is covered with secondary valve passage and is threaded with valve body under the off-position of corresponding mangetic core assembly in the fourth hole at least one; Valve gap is connected through bolt with valve body, and the guide sleeve of the mangetic core assembly that the main valve passage is corresponding is threaded with the side of valve gap away from valve body.

2. rock gas solenoid valve according to claim 1 is characterized in that: have the annular groove that communicates with said first through hole in the scope being covered with of valve gap around described second through hole.

3. rock gas solenoid valve according to claim 1; It is characterized in that: described flap connects through spring with the armature of corresponding mangetic core assembly; Have respectively balance inlet hole, balance exhaust port that the inlet/outlet with said 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 through corresponding armature under the off-position of the coil of corresponding mangetic core assembly.

4. rock gas solenoid valve according to claim 1; It is characterized in that: the endoporus of the guide sleeve of said 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 the guide sleeve of correspondence, and the Returnning spring of the mangetic core assembly that said secondary valve passage is corresponding is mounted between the step surface of corresponding armature and guide sleeve; The Returnning spring of the mangetic core assembly that the main valve passage is corresponding is mounted between corresponding armature and the inner side surface of corresponding guide sleeve away from an end of valve body.

5. rock gas solenoid valve according to claim 1 is characterized in that: described flap has flap retaining edge away from an end of valve body, and flap articulates through spring with corresponding armature.