CN203926966U - Heavy caliber core bar integral type modulating valve - Google Patents
Heavy caliber core bar integral type modulating valve Download PDFInfo
- Publication number
- CN203926966U CN203926966U CN201420366533.7U CN201420366533U CN203926966U CN 203926966 U CN203926966 U CN 203926966U CN 201420366533 U CN201420366533 U CN 201420366533U CN 203926966 U CN203926966 U CN 203926966U
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- valve
- spool
- guide sleeve
- core rod
- cylinder
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- Expired - Fee Related
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Abstract
Heavy caliber core bar integral type modulating valve, comprise valve body, valve gap, stuffing box packing assembly, mangetic core assembly, valve cage, guide sleeve, accumulation of energy seal ring and valve seat, mangetic core assembly comprise spool cylinder and and valve core rod, valve seat is fixed in valve body, and valve cage is pressed on valve seat by guide sleeve, valve gap, and spool cylinder is placed on valve seat, accumulation of energy seal ring is established in guide sleeve inwall bottom, mangetic core assembly is core bar integrated component, and between valve core rod and spool cylinder, for hot charging is connected, spool pressing plate is welded on spool cylinder; Guide sleeve inwall is provided with dust blowing ring, and dust blowing ring is embedded on guide sleeve inwall.The utility model has the advantages that: integral type valve core structure, improve join strength and concentricity between valve core rod and spool cylinder, reduce valve switch moment, bearing thrust is large, valve closing good seal performance; On guide sleeve, establish dust blowing ring, effectively protected guide surface and sealing surface, prevent that guide sleeve internal surface from destroying, affect guiding accuracy, reduce maintenance of valve number of times, prolongation valve working life.
Description
Technical field
The utility model belongs to control valve technical field, relates in particular to and requires strict process control control valve to leaking.
Background technique
In crude oil in China conveyance conduit, the pressure of each pumping plant regulates needs high pressure, heavy caliber cage guiding single-seat adjusting valve, is provided for a long time by external producer.Domestic high pressure, heavy caliber control valve, adopt butterfly valve conventionally.The heavy caliber of prior art, high pound level cage guiding single-seat adjusting valve, spool barrel dliameter is large, and valve rod height is high, between spool and valve rod, adopts and is threaded.The deficiency of the heavy caliber of prior art, high pound level cage guiding single-seat adjusting valve is: intensity that spool is connected with valve rod is low, coaxality is poor; Degree of regulation is low, and deviation is large; In the time that crude oil medium is more containing particle, easily scratch guide sleeve and Sealing, also can make spool stuck when serious.
Summary of the invention
The purpose of this utility model is to provide a kind of heavy caliber core bar integral type modulating valve, overcome prior art deficiency.
The technical solution of the utility model is: heavy caliber core bar integral type modulating valve, comprise valve body, valve gap, stuffing box packing assembly, mangetic core assembly, valve cage, guide sleeve, accumulation of energy seal ring and valve seat, mangetic core assembly comprise spool cylinder and and valve core rod, valve core rod lower end is connected with spool cylinder, valve core rod upper end passes and between valve gap and valve gap, uses stuffing box packing component sealing, valve seat is fixed in valve body, valve cage is by guide sleeve, valve gap is pressed on valve seat, spool cylinder is placed on valve seat, spool cylinder external diameter and the sliding contact of guide sleeve inwall, guide sleeve inwall bottom is provided with accumulation of energy seal ring, accumulation of energy seal ring is by slipper seal between spool and guide sleeve, valve gap is connected with valve seal, it is characterized in that: described mangetic core assembly is core bar integrated component, mangetic core assembly also comprises spool pressing plate, the valve core rod lower end of mangetic core assembly is connecting cylinder, spool cylinder end face central position is provided with boss, boss center has the attachment hole matching with valve core rod lower end connecting cylinder, coordinating between attachment hole and valve core rod lower end connecting cylinder is that the hot charging of attachment hole heating coordinates, spool cylinder and valve core rod are connected as one, valve core rod lower end connecting cylinder upper surface is concordant with spool cylinder end face boss surface, described spool pressing plate is annulus, spool pressing plate center hole matches and is sleeved on valve core rod with valve core rod, spool pressing plate lower surface and valve core rod lower end connecting cylinder upper surface connect, the external diameter of spool pressing plate is greater than valve core rod lower end connecting cylinder external diameter, be less than spool cylinder end face boss external diameter, along the outer rim of spool pressing plate, spool pressing plate be welded on spool cylinder end face boss, described guide sleeve inwall accumulation of energy seal ring top is provided with dust blowing ring, and dust blowing ring is embedded on guide sleeve inwall, and dust blowing ring is teflon annulus, Spielpassung between dust blowing ring and spool cylinder, the dustproof scraping structure of composition.
Heavy caliber core bar integral type modulating valve described in the utility model, is characterized in that: the clearance for expansion that the hot charging between described attachment hole and connecting cylinder coordinates is 0.25～0.3mm.
Heavy caliber core bar integral type modulating valve described in the utility model, is characterized in that: between described dust blowing ring and spool cylinder, Spielpassung is interference 0.2mm.
Heavy caliber core bar integral type modulating valve described in the utility model, is characterized in that: in the teflon of described dust blowing ring, dosed carbon fiber.
The beneficial effects of the utility model are:
1, integral type core bar structure, by hot-mounting process, spool cylinder is connected with valve core rod, due to accurate clearance for expansion, spool cylinder is connected as a whole with valve core rod, improve join strength and concentricity between valve core rod and spool cylinder, reduced valve switch moment;
2, be embedded in dust blowing ring and the spool cylinder surface gap of guide sleeve inwall very little, neither can filter scraping to the particle in medium again by scratch spool cylinder, guide surface and sealing surface are effectively protected, ensure sealing when valve cuts out, reduce maintenance of valve number of times, improve the working life of valve;
3, filler assembly sealing has ensured that filler is without leakage, and frictional force is little;
4, valve compressive resistance is high, and bore is large, and the power of closing is large, can under high pressure regulate exactly.
Brief description of the drawings
Accompanying drawing 1 is that the axis of no-feathering of the utility model heavy caliber core bar integral type modulating valve measures intention;
Accompanying drawing 2 is structural plan schematic diagram of the utility model heavy caliber core bar integral type modulating valve;
Accompanying drawing 3 is mangetic core assembly structural plan schematic diagram of the utility model heavy caliber core bar integral type modulating valve;
Accompanying drawing 4 is that the mangetic core assembly axis of no-feathering of the utility model heavy caliber core bar integral type modulating valve measures intention;
Accompanying drawing 5 is dust blowing ring structure schematic diagram of the utility model heavy caliber core bar integral type modulating valve;
Accompanying drawing 6 is dust blowing ring structure enlarged diagrams of the utility model heavy caliber core bar integral type modulating valve.
In accompanying drawing, 1, valve body, 2 valve seats, 3, valve cage, 4, guide sleeve, 5, valve gap, 6, stuffing box packing assembly, 7, mangetic core assembly, 8, dust blowing ring, 9, accumulation of energy seal ring, 10, spool cylinder, 11, valve core rod, 12, spool pressing plate, 13, weld seam.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, the utility model is described in further detail.
Heavy caliber core bar integral type modulating valve comprises valve body 1, valve gap 5, stuffing box packing assembly 6, mangetic core assembly 7, valve cage 3, guide sleeve 4, accumulation of energy seal ring 9 and valve seat 2, mangetic core assembly 7 comprises spool cylinder 10, valve core rod 11 and spool pressing plate 12, valve core rod 11 lower ends are connected with spool cylinder 10, valve core rod 11 upper ends pass between valve gap 5 and valve gap and seal with stuffing box packing assembly 6, valve core rod 11 is mirror finish with the machining accuracy of filler assembly 6 corresponding positions, valve seat 2 is fixed in valve body 1, valve cage 3 is by guide sleeve 4, valve gap 5 is pressed on valve seat 2, spool cylinder 10 is placed on valve seat 2, spool cylinder 10 external diameters and guide sleeve 4 inwall sliding contacts, guide sleeve 4 inwall bottoms are provided with accumulation of energy seal ring 9, accumulation of energy seal ring 9 is by slipper seal between spool cylinder 10 and guide sleeve 4, valve gap 5 and valve body 1 are tightly connected, mangetic core assembly 7 is core bar integrated component, valve core rod 11 lower ends are connecting cylinder, spool cylinder 10 end face central positions are provided with boss, boss center has the attachment hole matching with valve core rod 11 lower end connecting cylinders, coordinating between attachment hole and valve core rod 11 lower end connecting cylinders is that the hot charging of attachment hole heating coordinates, the clearance for expansion that hot charging coordinates is 0.25～0.3mm, spool cylinder 10 and valve core rod 11 are connected as one, valve core rod 11 lower end connecting cylinder upper surfaces are concordant with spool cylinder 10 end face boss surface, spool pressing plate 12 is annulus, spool pressing plate 12 center holes match and are sleeved on valve core rod 11 with valve core rod 11, spool pressing plate 12 lower surfaces and valve core rod 11 lower end connecting cylinder upper surfaces connect, the external diameter of spool pressing plate 12 is greater than valve core rod 11 lower end connecting cylinder external diameters, be less than spool cylinder 10 end face boss external diameters, outer rim along spool pressing plate 12 is welded on spool pressing plate 12 on spool cylinder 10 end face boss, and weld seam 13 is 5mmX5mm fillet weld, guide sleeve 4 inwall accumulation of energy seal ring tops are provided with dust blowing ring 8, dust blowing ring 8 is embedded on guide sleeve 4 inwalls, and dust blowing ring 8 is annulus of teflon effect of filling some carbon fiber fiber, Spielpassung between dust blowing ring 8 and spool cylinder 10, Spielpassung is interference 0.2mm, the dustproof scraping structure of composition.
Claims (4)
1. heavy caliber core bar integral type modulating valve, comprise valve body (1), valve gap (5), stuffing box packing assembly (6), mangetic core assembly (7), valve cage (3), guide sleeve (4), accumulation of energy seal ring (9) and valve seat (2), mangetic core assembly (7) comprise spool cylinder (10) and with valve core rod (11), valve core rod (11) lower end is connected with spool cylinder (10), valve core rod (11) upper end passes between valve gap (5) and valve gap with stuffing box packing assembly (6) sealing, valve seat (2) is fixed in valve body (1), valve cage (3) is by guide sleeve (4), valve gap (5) is pressed on valve seat (2), spool cylinder (10) is placed on valve seat (2), spool cylinder (10) external diameter and guide sleeve (4) inwall sliding contact, guide sleeve (4) inwall bottom is provided with accumulation of energy seal ring (9), accumulation of energy seal ring (9) is by slipper seal between spool cylinder (10) and guide sleeve (4), valve gap (5) and valve body (1) are tightly connected, it is characterized in that: described mangetic core assembly (7) is core bar integrated component, mangetic core assembly (7) also comprises spool pressing plate (12), valve core rod (11) lower end of mangetic core assembly is connecting cylinder, spool cylinder (10) end face central position is provided with boss, boss center has the attachment hole matching with valve core rod (11) lower end connecting cylinder, coordinating between the connecting cylinder of attachment hole and valve core rod (11) lower end is that the hot charging of attachment hole heating coordinates, spool cylinder (10) and valve core rod (11) are connected as one, valve core rod (11) lower end connecting cylinder upper surface is concordant with spool cylinder (10) end face boss surface, described spool pressing plate (12) is annulus, spool pressing plate (12) center hole matches and is sleeved on valve core rod (11) with valve core rod (11), spool pressing plate (12) lower surface and valve core rod (11) lower end connecting cylinder upper surface connect, the external diameter of spool pressing plate (12) is greater than valve core rod (11) lower end connecting cylinder external diameter, be less than spool cylinder (10) end face boss external diameter, along the outer rim of spool pressing plate (12), spool pressing plate (12) be welded on spool cylinder (10) end face boss, described guide sleeve (4) inwall accumulation of energy seal ring top is provided with dust blowing ring (8), dust blowing ring (8) is embedded on guide sleeve (4) inwall, dust blowing ring (8) is teflon annulus, Spielpassung between dust blowing ring (8) and spool cylinder (10), the dustproof scraping structure of composition.
2. heavy caliber core bar integral type modulating valve according to claim 1, is characterized in that: the clearance for expansion that the hot charging between described attachment hole and connecting cylinder coordinates is 0.25～0.3mm.
3. heavy caliber core bar integral type modulating valve according to claim 1, is characterized in that: between described dust blowing ring (8) and spool cylinder (10), Spielpassung is interference 0.2mm.
4. heavy caliber core bar integral type modulating valve according to claim 3, is characterized in that: in the teflon of described dust blowing ring (8), dosed carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366533.7U CN203926966U (en) | 2014-07-03 | 2014-07-03 | Heavy caliber core bar integral type modulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366533.7U CN203926966U (en) | 2014-07-03 | 2014-07-03 | Heavy caliber core bar integral type modulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926966U true CN203926966U (en) | 2014-11-05 |
Family
ID=51822777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420366533.7U Expired - Fee Related CN203926966U (en) | 2014-07-03 | 2014-07-03 | Heavy caliber core bar integral type modulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926966U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134970A (en) * | 2015-09-01 | 2015-12-09 | 浙江力诺流体控制科技股份有限公司 | Large-diameter high-temperature and high-pressure cage type control valve |
| CN108868923A (en) * | 2018-07-05 | 2018-11-23 | 大连亨利测控仪表工程有限公司 | A kind of threeway jet stream pressure and temperature reducing control system for heat supply network heat supply |
| CN110617353A (en) * | 2018-06-19 | 2019-12-27 | 艾默生过程管理调节技术公司 | Emergency shutdown safety device for dirty service applications |
-
2014
- 2014-07-03 CN CN201420366533.7U patent/CN203926966U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134970A (en) * | 2015-09-01 | 2015-12-09 | 浙江力诺流体控制科技股份有限公司 | Large-diameter high-temperature and high-pressure cage type control valve |
| CN110617353A (en) * | 2018-06-19 | 2019-12-27 | 艾默生过程管理调节技术公司 | Emergency shutdown safety device for dirty service applications |
| CN108868923A (en) * | 2018-07-05 | 2018-11-23 | 大连亨利测控仪表工程有限公司 | A kind of threeway jet stream pressure and temperature reducing control system for heat supply network heat supply |
| CN108868923B (en) * | 2018-07-05 | 2024-01-30 | 大连亨利测控仪表工程有限公司 | Three-way jet flow temperature and pressure reducing control system for heat supply of heat supply network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20210703 |