CN201588944U - Pilot-operated electromagnetic valve - Google Patents
Pilot-operated electromagnetic valve Download PDFInfo
- Publication number
- CN201588944U CN201588944U CN2009202933489U CN200920293348U CN201588944U CN 201588944 U CN201588944 U CN 201588944U CN 2009202933489 U CN2009202933489 U CN 2009202933489U CN 200920293348 U CN200920293348 U CN 200920293348U CN 201588944 U CN201588944 U CN 201588944U
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- CN
- China
- Prior art keywords
- valve
- guide
- pilot
- main valve
- valve body
- Prior art date
- 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
Links
Abstract
The utility model discloses a pilot-operated electromagnetic valve, which comprises a main valve and a pilot-operated valve. The main valve comprises a main valve body, a valve spool, a large spring and a valve cap, the pilot-operated valve consists of a pilot-operated valve body, a pilot-operated valve seat, a sleeve, a movable iron core, a positioning flange, an electromagnetic coil, a preset spring and a bolt, the sleeve is penetratingly and fixedly mounted on the pilot-operated valve body, a lower extending end of the sleeve is fixed with the pilot-operated valve seat, the electromagnetic coil is arranged inside the pilot-operated valve body and annularly sleeved on the sleeve, the movable iron core is disposed inside the sleeve, and the positioning flange is sleeved on the sleeve and located between the pilot-operated valve body and the pilot-operated valve seat. When the pilot-operated electromagnetic valve is used, a heat isolation device is mounted between the main valve and the positioning flange, and the positioning flange is fixed on the heat isolation device, therefore, a distance between the electromagnetic coil of the pilot-operated valve and the main valve is comparatively large, low temperature on pipelines is hard to be transmitted onto the electromagnetic coil, and then the electromagnetic coil is protected and not easy to be damaged.
Description
Technical field
The utility model relates to a kind of solenoid valve, particularly relates to a kind of guide electromagnetic valve.
Background technique
Guide electromagnetic valve is a kind of executive component in the industrial process automatic control system, it is made up of main valve and pilot valve two-part, and wherein pilot valve receives the valve that can open and close automatically main valve behind the electrical signal, ducted flowing medium is carried out break-make control and remote operation.Be widely used in petrochemical industry, medical equipment, bio-pharmaceuticals, industry such as refrigeration air-conditioner and food and drink, yet, in some special industries, the medium that flows in the pipeline need remain under the bad border of low temperature, but, existing guide electromagnetic valve is fixed on the valve body of main valve owing to pilot valve, the spacing that is positioned at the electromagnetic coil of pilot valve and main valve controlling plumbing fixtures like this is very little, cause on the electromagnetic coil that the low temperature on the pipeline easily is transmitted to, thereby cause electromagnetic coil to damage easily, particularly at liquid nitrogen, the easier damage of the guide electromagnetic valve that uses in the pipeline such as liquefied ammonia and low-temperature refrigerant.
The model utility content
Technical problem to be solved in the utility model is to solve the easy problem of damaging of the guide electromagnetic valve electromagnetic coil that is used on the cryogenic pipe.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopted provides a kind of guide electromagnetic valve, comprise main valve and pilot valve, described main valve comprises valve body of main valve, spool, big spring and valve gap, valve body of main valve is provided with material feeding mouth, discharge port and spool mount inlet, spool places in the valve body of main valve and between material feeding mouth and discharge port, valve bonnet seal is installed on the spool mount inlet and forms first guide's oil pocket between the end face of the bottom surface of valve gap and spool, big spring is arranged between spool and the valve gap and offsets with the upper surface of spool and the lower surface of valve gap respectively, and the material feeding mouth place of valve body of main valve is provided with first guide's oil duct; Described pilot valve comprises guide's valve body, guide's valve seat, sleeve pipe, moving iron core, locating flange, electromagnetic coil, Returnning spring and bolt, casing tube wearing is fixed on guide's valve body and descends external part and guide's valve seat to fix, the upper surface of main valve valve gap is provided with groove, guide's valve seat spiral shell is contained in the groove of main valve valve gap, electromagnetic coil be arranged in guide's valve body and ring set on sleeve pipe, moving iron core is arranged in the sleeve pipe and forms second guide's oil pocket between the bottom surface of the lower end surface of moving iron core and the groove on the main valve valve gap, the bolt spinning is between the upper-end surface of bottom surface that the upper end and the Returnning spring of sleeve pipe is arranged on bolt and moving iron core, and locating flange is sleeved on the sleeve pipe and between guide's valve body and guide's valve seat; The valve gap of main valve is provided with second guide's oil duct and the 3rd oil duct, and second guide's oil duct communicates with first guide's oil duct and guide's oil pocket respectively, and the 3rd oil duct is communicated with first guide's oil pocket and second guide's oil pocket.
As improvement of the present utility model, be provided with spring between the bottom surface of locating flange and guide's valve body, and this spring housing is contained on the sleeve pipe.
The utility model; by sleeve pipe main valve and pilot valve are linked together; be equivalent to elongate the structure of pilot valve; between main valve and locating flange, heat-proof device is installed during use; and locating flange is fixed on the heat-proof device, therefore, the electromagnetic coil and the distance between the main valve of pilot valve are bigger; low temperature on the pipeline is difficult for passing on the electromagnetic coil, thereby the protection electromagnetic coil is not fragile.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is made detailed explanation.
As shown in Figure 1, the utility model comprises main valve 12 and pilot valve 13, main valve 12 comprises valve body of main valve 11, spool 10, big spring 9 and valve gap 8, valve body of main valve 11 is provided with material feeding mouth 22, discharge port 14 and spool mount inlet, spool 10 places in the valve body of main valve 11 and between material feeding mouth 22 and discharge port 14, valve gap 8 sealing be installed on the spool mount inlet and the end face of the bottom surface of valve gap 8 and spool 10 between formation first guide's oil pocket 21, big spring 9 is arranged between spool 10 and the valve gap 8 and offsets with the upper surface of spool 10 and the lower surface of valve gap 8 respectively, and material feeding mouth 22 places of valve body of main valve 11 are provided with first guide's oil duct 15.
Pilot valve 13 comprises guide's valve body 16, guide's valve seat 7, sleeve pipe 17, moving iron core 6, locating flange 5, electromagnetic coil 3, Returnning spring 2 and bolt 1, sleeve pipe 17 install be fixed on guide's valve body 16 and down external part fix with guide's valve seat 7, the upper surface of the valve gap 8 of main valve is provided with groove, guide's valve seat 7 spiral shells are contained in the groove of valve gap 8 of main valve, electromagnetic coil 3 be arranged in guide's valve body 16 and ring set on sleeve pipe 17, moving iron core 6 is arranged in the sleeve pipe 17, formation second guide's oil pocket 18 between the bottom surface of the groove on the lower end surface of moving iron core 6 and the valve gap 8 of main valve, bolt 1 spinning is between the upper-end surface of bottom surface that the upper end and the Returnning spring 2 of sleeve pipe 17 is arranged on bolt 1 and moving iron core 6.The valve gap 8 of main valve is provided with second guide's oil duct 19 and the 3rd oil duct 20, the second guide's oil ducts 19 communicate with first guide's oil duct 15 and guide's oil pocket 18 respectively, and the 3rd oil duct 20 is communicated with first guide's oil pocket 21 and second guide's oil pocket 18.Locating flange 5 and spring 4 be set on the sleeve pipe 17 and spring 4 between the bottom surface and locating flange 5 of guide's valve body 16.
Working procedure of the present utility model is as follows, and the spool 10 of main valve seals material feeding mouth 22 and discharge port 14 at ordinary times, and the bottom surface of guide's valve actuation iron core 6 is with second guide's oil pocket 18 and 19 sealings of second guide's oil duct.After electromagnetic coil 3 energisings of pilot valve, driving moving iron core 6 under the effect of electromagnetic force moves up, so second guide's oil pocket 18 and second guide's oil duct 19 are communicated with, pressure medium in the material feeding mouth 22 enters second guide's oil pocket 18 through first guide's oil duct 15, second guide's oil duct 19, and enter first guide's oil pocket 21 through the 3rd oil duct 20, thereby reduced the pressure that acts on the valve core of main valve back of the body chamber, utilized pressure reduction to make on the spool of main valve and move the medium circulation.After electromagnetic coil 3 outages, electromagnetic force disappears, and moving iron core 6 falls to resetting because of Returnning spring 2 and deadweight, and the bottom surface of moving iron core 6 is with second guide's oil pocket 18 and 19 sealings of second guide's oil duct, so valve core of main valve 10 moves down, close material feeding mouth 22 and discharge port 14 under the effect of gravity and big spring 9.The utility model the structural stretch of pilot valve after; increased the flange location; between main valve and locating flange, heat-proof device is installed during use; and locating flange is fixed on the heat-proof device; the electromagnetic coil of pilot valve and the distance between the main valve are bigger like this; low temperature on the pipeline is difficult for passing on the electromagnetic coil, so electromagnetic coil is protected, and is not fragile.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technological scheme, all fall within the protection domain of the present utility model.
Claims (2)
1. guide electromagnetic valve comprises main valve and pilot valve, it is characterized in that,
Described main valve comprises valve body of main valve, spool, big spring and valve gap, valve body of main valve is provided with material feeding mouth, discharge port and spool mount inlet, spool places in the valve body of main valve and between material feeding mouth and discharge port, valve bonnet seal is installed on the spool mount inlet and forms first guide's oil pocket between the end face of the bottom surface of valve gap and spool, big spring is arranged between spool and the valve gap and offsets with the upper surface of spool and the lower surface of valve gap respectively, and the material feeding mouth place of valve body of main valve is provided with first guide's oil duct;
Described pilot valve comprises guide's valve body, guide's valve seat, sleeve pipe, moving iron core, locating flange, electromagnetic coil, Returnning spring and bolt, casing tube wearing is fixed on guide's valve body and descends external part and guide's valve seat to fix, the upper surface of main valve valve gap is provided with groove, guide's valve seat spiral shell is contained in the groove of main valve valve gap, electromagnetic coil be arranged in guide's valve body and ring set on sleeve pipe, moving iron core is arranged in the sleeve pipe and forms second guide's oil pocket between the bottom surface of the lower end surface of moving iron core and the groove on the main valve valve gap, the bolt spinning is between the upper-end surface of bottom surface that the upper end and the Returnning spring of sleeve pipe is arranged on bolt and moving iron core, and locating flange is sleeved on the sleeve pipe and between guide's valve body and guide's valve seat;
The valve gap of main valve is provided with second guide's oil duct and the 3rd oil duct, and second guide's oil duct communicates with first guide's oil duct and guide's oil pocket respectively, and the 3rd oil duct is communicated with first guide's oil pocket and second guide's oil pocket.
2. guide electromagnetic valve as claimed in claim 1 it is characterized in that being provided with spring between the bottom surface of locating flange and guide's valve body, and this spring housing is contained on the sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202933489U CN201588944U (en) | 2009-12-21 | 2009-12-21 | Pilot-operated electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202933489U CN201588944U (en) | 2009-12-21 | 2009-12-21 | Pilot-operated electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588944U true CN201588944U (en) | 2010-09-22 |
Family
ID=42748725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202933489U Expired - Fee Related CN201588944U (en) | 2009-12-21 | 2009-12-21 | Pilot-operated electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588944U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516570A (en) * | 2017-09-06 | 2017-12-26 | 长兴华强电子股份有限公司 | A kind of inductance element and its manufacture method with heat-shrinkable T bush |
| CN115899290A (en) * | 2023-03-09 | 2023-04-04 | 余姚市三力信电磁阀有限公司 | Ultra-low temperature direct-acting electromagnetic valve |
-
2009
- 2009-12-21 CN CN2009202933489U patent/CN201588944U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516570A (en) * | 2017-09-06 | 2017-12-26 | 长兴华强电子股份有限公司 | A kind of inductance element and its manufacture method with heat-shrinkable T bush |
| CN115899290A (en) * | 2023-03-09 | 2023-04-04 | 余姚市三力信电磁阀有限公司 | Ultra-low temperature direct-acting electromagnetic valve |
| CN115899290B (en) * | 2023-03-09 | 2023-05-23 | 余姚市三力信电磁阀有限公司 | Ultralow Wen Zhidong formula solenoid valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20101221 |