CN2257342Y - Flame-proof two stage closing electromagnetic valve - Google Patents
Flame-proof two stage closing electromagnetic valve Download PDFInfo
- Publication number
- CN2257342Y CN2257342Y CN 95208514 CN95208514U CN2257342Y CN 2257342 Y CN2257342 Y CN 2257342Y CN 95208514 CN95208514 CN 95208514 CN 95208514 U CN95208514 U CN 95208514U CN 2257342 Y CN2257342 Y CN 2257342Y
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- China
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- valve
- valve plug
- positioning rod
- plug
- rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a flame-proof two stage closing electromagnetic valve. One side of the valve is connected with a two stage closing valve control mechanism provided with a positioning rod; a valve plug movement speed control mechanism is arranged in the electromagnetic valve, and a valve stem is added with a throttle control plunger. A hole plate of the valve plug is provided with eight common throttle passages. The perisporium of the valve plug is provided with six equidistant accelerating throttle passages and a speed limiting throttle passage, and therefore, the movement speed of the valve plug of the first stage closing valve is slow, and the surge pressure is reduced. A second stage closing valve accelerates the closing velocity of the valve plug, and therefore, the control accuracy is enhanced. The utility model is a comparatively ideal electromagnetic valve of the liquid material quantitative control system of oilfield, chemical industry, light industry, etc. at present.
Description
The utility model is a kind of two sections pass solenoid valves that liquid medium in the pipe-line system carried out the automatic control of break-make.
At present,, direct-acting type and leading type two classes are arranged, have single hop to open and close and two kinds of working methods of multistage keying with the solenoid valve of purposes.Direct action solenoid valve has only single hop to open and close, it mainly relies on the electromagnetic force operation, do not rely on pressure medium, the control accuracy height, but, in pipe-line system, can produce the water attack effect because closing velocity is fast, particularly big at caliber, in the system that pipeline is long, velocity of medium is fast, surge pressure height, safety inadequately.Its required driving power is bigger in addition.Guide electromagnetic valve has single hop to close and multistage closes two kinds, and it opens and closes by means of pressure medium, and driving power is less.But the pressure reduction that valve has needed between importing and exporting, under the little situation of pressure reduction, it is unreliable work, and the influence of the keying speed pressure difference of valve variation and reduced control accuracy.The guide electromagnetic valve that single hop opens and closes also produces the water attack effect when closing valve.
Surge pressure height when the purpose of this utility model is at direct action solenoid valve pass valve, driving power closes solenoid valve under the low situation of inlet outlet pressure differential than big and leading type multistage, insecure scarce limit of working, provide a kind of new flame proof two sections pass solenoid valves, promptly on direct action solenoid valve, increased by a cover and closed valve control device for two sections, making valve be divided into two sections when closing carries out, close most of rate-of flow earlier for first section, close remaining rate-of flow again for second section, to reduce surge pressure and to guarantee control accuracy.In the direct action solenoid valve body, utilize its valve rod, valve plug orifice plate, valve plug to process a cover valve plug movement velocity control mechanism, be used to reduce the valve starting power, slow down first section movement velocity of closing valve plug, to reduce the fluctuation of pressure medium in the pipe-line system, accelerate second section movement velocity of closing valve plug, to improve control accuracy.
To achieve these goals, the utility model is fixed together two sections pedestals that close valve control device with bolt on the valve body of direct action solenoid valve, and a cover valve plug movement velocity control mechanism is installed in the direct action solenoid valve valve body.
A valve seat is arranged at the bottom in the direct action solenoid valve body, and a valve plug cover is equipped with on top, in the valve plug cover valve plug is housed.The valve plug perisporium has six equidistant acclerating section circulation roads, and a speed limit throttling passage has a valve plug locating slot on the valve plug of two sections pass valve control device one sides.The valve plug orifice plate is housed on the valve plug, and the axle center is led in the side of valve plug orifice plate eight public throttling passages, and a back-up ring is equipped with in valve plug orifice plate upper end, and back-up ring is stuck in the circlip groove on the valve plug.Adorn a valve rod at valve plug orifice plate center, the valve rod upper end is connected with the iron core of main electromagnet, and its lower end is more slightly as the pilot valve lid, and pilot valve covers the thicker joint of portion as throttling passage control plunger, adorn a gland spring on the valve plug orifice plate, the stage clip upper end withstands on the explosion-proof casing of main electromagnet.
Two sections pedestal and valve bodies that close valve control device in valve plug locating slot one side are bolted together, there is a connecting rod pilot hole in the pedestal left side, and connecting rod is housed, the bottom of connecting rod is thick and make the inclined-plane of one 60 degree, a connecting rod reset spring is equipped with on its top, the reset spring upper end withstands on the baffle plate, small end is connected with the iron core of auxilliary electromagnet, there is a positioning rod pilot hole on the right side, bottom of pedestal, and positioning rod is housed, thinner one section end, the left side of positioning rod withstands on the inclined-plane of connecting rod bottom, one section that positioning rod is thicker is contained in the positioning rod pilot hole, refill the positioning rod reset spring, the right-hand member of reset spring withstands on the valve outer wall, and the locating slot on the valve plug is stretched in the positioning rod hole that the thin part of the right section of positioning rod puts by valve body and valve plug.
This reality has novel and existing direct action solenoid valve and leading type multistage to close solenoid valve to compare following advantage: the pressure reduction that can import and export at valve be reliably working under zero the state, surge pressure is little, the control accuracy height, average power consumption is low, the valve automatic closing function is a kind of comparatively ideal two sections pass solenoid valves when possessing outage.
The utility model will be described further in conjunction with the accompanying drawings:
Fig. 1 is the sectional view of two sections pass solenoid valves of flame proof;
Fig. 2 is the valve plug worm's eye view;
Fig. 3 is the valve plug sectional view;
Fig. 4 is that valve plug revolves the sectional view after turning 90 degrees;
Fig. 5 is the valve rod plan view;
Fig. 6 is a valve plug orifice plate sectional view;
Fig. 7 is that valve plug orifice plate A-A is to sectional view;
The pedestal 19 of two sections pass solenoid valves of flame proof is fixing with valve body 29 usefulness bolts 25, one cover valve plug, 10 movement velocity control mechanisms are installed in direct action solenoid valve valve body 29, promptly a valve seat 14 is arranged at the bottom in valve body 29, a valve plug cover 5 is equipped with on top, in the valve plug cover valve plug 10 is housed, the valve plug perisporium has 11, one speed limit throttling passages 12 of six equidistant acclerating section circulation roads.On the valve plug 10 of two sections pass valve control device one sides, a valve plug locating slot 26 is arranged.Dress valve plug orifice plate 6 on the valve plug 10, the axle center is led in the side of valve plug orifice plate eight public throttling passages 8, and a ring washer 7 is equipped with in valve plug orifice plate 6 upper ends, and back-up ring is stuck in the circlip groove on the valve plug 10.Adorn a valve rod 3 at valve plug orifice plate 6 centers, the valve rod upper end is connected with the iron core 1 of main electromagnet, and its lower end is more slightly as pilot valve lid 13, and pilot valve covers the thicker joint of portion as throttling passage control plunger 9, adorn a stage clip 4 on the valve plug orifice plate, the stage clip upper end withstands on the explosion-proof casing of main electromagnet.
There is a connecting rod pilot hole in two sections pedestal 19 left sides of closing valve control device, and connecting rod 21 is housed, the connecting rod bottom is thick and make 60 ° of inclined-planes, a connecting rod reset spring 21 is equipped with on its top, reset spring 21 upper ends withstand on the baffle plate 20, connecting rod 21 upper ends are connected with the iron core 18 of auxilliary electromagnet 17, there is a positioning rod pilot hole on the right side, bottom of pedestal 19, and positioning rod 23 is housed, thinner one section end, the left side of positioning rod withstands on the inclined-plane of connecting rod 2 bottoms, one section that positioning rod 23 is thicker is contained in the positioning rod pilot hole, refill positioning rod reset spring 24, the right-hand member of reset spring withstands on valve body 29 outer walls, and the thin part of the right section of positioning rod is stretched to locating slot on the valve plug 10 by the positioning rod hole on valve body 29 and the valve plug cover 5.
Main electromagnet 1 is connected power supply, it is up that main iron core 2 is inhaled drive valve rod 3, open the medium that pilot valve covers 27 li of 13 valve plug inner chambers and flow to valve outlet plenum 16 by honeycomb duct 15, the plunger 9 of throttling passage control is simultaneously closed public throttling passage 8, make the medium of valve plug exocoel 28 can not enter valve plug inner chamber 27, reduced and opened the required electric power of valve, the stirrup strap adhesive of main iron core 2 and main electromagnet 1, compression press spring 4, valve is all opened, and medium can pass through valve.
Main electromagnet 1 outage, first section pass valve begins, and main iron core 2 is released, and valve rod 3 is descending, and pilot valve lid 13 is closed honeycomb duct 15.Throttling passage control plunger 9 is also descending thereupon, open public throttling passage 8, valve plug exocoel 28 is by speed limit throttling passage 12, public throttling passage 8 is communicated with valve plug inner chamber 27, at this moment valve plug begins descending under the effect of stage clip 4, the valve plug cavity volume increases needs to replenish medium, because six acclerating section circulation roads 11 at valve plug 10 lateral openings are sealed by valve plug cover 5, the medium that replenishes to valve plug inner chamber 27 can only suck from the speed limit throttling passage 12 at valve plug 10 bottom openings, because of speed limit throttling passage 12 sectional areas less, the speed of replenishing medium to valve plug inner chamber 27 is slower, thereby the descending speed of valve plug 10 has reduced the fluctuation of pressure medium in the pipe-line system in the valve event process effectively when having limited first section pass valve.In main electromagnet 1 outage, connect auxilliary electromagnet 17, it is up that auxilliary iron core 18 is inhaled drivening rod 21, connecting rod reset spring 22 is compressed, connecting rod 21 is 60 degree inclined-planes with positioning rod 23 by synapsis, promoting positioning rod 23 enters in the locating slot 26 of valve plug 10, the valve plug slow descending stops to place, positioning rod location, and acclerating section circulation road 11 is opened, and finishes first section pass valve process.
Cut off the power supply of auxilliary electromagnet 17, second section pass valve begins, auxilliary iron core 18 is released, connecting rod 21 is at the following horizontal reset of the effect of its reset spring 22, positioning rod 23 at the connecting rod 21 of its reset spring 24 at the following horizontal reset of the effect of its reset spring 22, positioning rod 23 resets under the effect of its reset spring 24, valve plug 10 is freed descending, this moment, speed limit throttling passage 12 and acclerating section circulation road 11 replenished medium to valve plug inner chamber 27 simultaneously, the flow that replenishes medium increases, and makes speeding up of second section pass valve, and valve plug 10 comes downwards to valve seat 14 rapidly, with valve closing, finished second section pass valve process.
Claims (3)
1, two sections pass solenoid valves of a kind of flame proof, it comprises that two sections close valve control device and valve plug movement velocity control mechanism, it is characterized in that: on the valve body of direct action solenoid valve, two sections pedestals that close electromagnetic valve mechanism are fixed together, a cover valve plug movement velocity control mechanism is installed in the direct action solenoid valve valve body with bolt.
2, two sections pass solenoid valves of flame proof according to claim 1, it is characterized in that: valve plug movement velocity control mechanism, a valve seat is arranged at the bottom in the direct action solenoid valve valve body, a valve plug cover is equipped with on top, in the valve plug cover valve plug is housed, the valve plug perisporium has six equidistant acclerating section circulation roads, a speed limit throttling passage, on the valve plug of two sections pass valve control device one sides, a locating slot is arranged, the valve plug orifice plate is housed on the valve plug, the axle center is led in the side of valve plug orifice plate eight public throttling passages, there is a back-up ring valve plug orifice plate upper end, back-up ring is stuck in the circlip groove on the valve plug, adorns a valve rod at valve plug orifice plate center, and the valve rod upper end is connected with the iron core of main electromagnet, its lower end is more slightly covered as pilot valve, pilot valve covers the thicker joint of portion as throttling passage control plunger, and a stage clip is housed on the valve plug orifice plate, and the stage clip upper end withstands on the explosion-proof casing of main electromagnet.
3, must ask two sections pass solenoid valves of 1 described flame proof according to power, it is characterized in that: two sections close valve control device in valve plug locating slot one side, with bolt its pedestal and electromagnetic valve body are fixed, there is a connecting rod pilot hole in the pedestal left side, and connecting rod is housed, the bottom of connecting rod is thick and make the inclined-plane of one 60 degree.A connecting rod reset spring is equipped with on its top, the reset spring upper end withstands on the baffle plate, small end is connected with the iron core of auxilliary electromagnet, there is a positioning rod pilot hole on the right side, bottom of pedestal, and positioning rod is housed, the end of the left side thinner section of positioning rod withstands on the inclined-plane of connecting rod bottom, one section that positioning rod is thicker is contained in the positioning rod pilot hole, refill the positioning rod reset spring, the right-hand member of reset spring withstands on the valve outer wall, and the locating slot on the valve plug is stretched in the positioning rod hole that the thin part of the right section of positioning rod puts by valve body and valve plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95208514 CN2257342Y (en) | 1995-04-11 | 1995-04-11 | Flame-proof two stage closing electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95208514 CN2257342Y (en) | 1995-04-11 | 1995-04-11 | Flame-proof two stage closing electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2257342Y true CN2257342Y (en) | 1997-07-02 |
Family
ID=33859822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95208514 Expired - Fee Related CN2257342Y (en) | 1995-04-11 | 1995-04-11 | Flame-proof two stage closing electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2257342Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881350A (en) * | 2010-07-16 | 2010-11-10 | 淮南润成科技有限公司 | Explosion-proof type magnetic valve for mine |
-
1995
- 1995-04-11 CN CN 95208514 patent/CN2257342Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881350A (en) * | 2010-07-16 | 2010-11-10 | 淮南润成科技有限公司 | Explosion-proof type magnetic valve for mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |