CN2038579U - Straight-through type high voltage valve porcelain liner - Google Patents
Straight-through type high voltage valve porcelain liner Download PDFInfo
- Publication number
- CN2038579U CN2038579U CN 88213064 CN88213064U CN2038579U CN 2038579 U CN2038579 U CN 2038579U CN 88213064 CN88213064 CN 88213064 CN 88213064 U CN88213064 U CN 88213064U CN 2038579 U CN2038579 U CN 2038579U
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- CN
- China
- Prior art keywords
- valve
- leading screw
- valve rod
- ceramic
- boss
- 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.)
- Withdrawn
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- Valve Housings (AREA)
Abstract
The utility model relates to a straight-through type high voltage valve porcelain liner. The upper half part of a valve rod is a screw rod, and the lower half part of the valve rod is a solid porcelain pillar. The bottom surface of the base seat of the valve rod is in a dummy club shape, and a four fluorine ring is sheathed on the base seat of the valve rod. The warp surface of the four fluorine ring is perpendicular to the bottom surface of the four fluorine ring. The wall of the lining which corresponds to the hole of the valve is opened with a right angle step. The utility model has a good noncorrosibility, and a reasonable and reliable mechanical structure.
Description
The utility model relates to a kind of straight-through type ceramic lined high pressure valve, is industrial high pressure valve.
Valve is to carry in the industrial production or the pipeline fittings of store fluid raw material or finished product.In particularly all kinds of Chemical Manufacture in producing, the fluid of being carried all has corrosivity, material valves such as the stainless steel of therefore present extensive use, line with rubber, plastics, alloy, cast iron, cast steel, steel, all can't fundamentally solve anticorrosion problem, ubiquity short, the rotten problem of revealing of quilt in working life, and in the existing valve, have many structures also unreasonable, make to occur being not closed completely, oozing the dew phenomenon in the application.
The utility model purpose is: overcome the deficiency of prior art, provide a kind of strong pottery of anti-corrosive properties that adopts to make lining, use reliably and long straight-through type high pressure valve of life-span.
Pottery has good corrosion resistant performance, but its mechanical strength is all very poor except that compression resistance, damage easily under high pressure.Therefore will realize the utility model purpose, key is to design valve rod rational in infrastructure and lining.The concrete scheme of the utility model is as follows:
Identical with prior art, also form by frame and the leading screw female seat that is connected to one with it, the handwheel that is contained in the leading screw top, different is: at the frame inner chamber ceramic lined is housed, substantial between shell and the lining with filler; Valve rod is made up of leading screw and ceramic solid mast, and ceramic mast base is the boss shape, with an external diameter and boss along the identical tetrafluoro annulus interference of external diameter be socketed on the boss, between annulus bottom surface and its diametric plane at right angles; Being subjected to the valve port place ceramic lined internal surface of valve rod control switch to process a right angle step matches with the valve rod base; A deep hole is opened in ceramics pole masthead end face center, next root external thread rod in the hole, with the perfusion of bar and hole wall gap, link that has an internal and external screw thread and above-mentioned external thread rod are exposed to the outer termination of ceramics pole mast top end and are threaded also that rivet welding is an one with filler; Fixing an attachment cap that has internal thread at the leading screw end, this cap is threaded with the above-mentioned link that has internal and external screw thread.
The utility model advantage is long-term corrosion-resistant, the ne-leakage that uses, and its test effect is as follows:
Experimental period: 20 days,
Test fluid: hypochlorous acid concentration: 3%
Hydrochloric acid 30%
Test temperature: 40～105 ℃,
Experiment work pressure: 1～3kg/cm
2,
Pet valve gate switch number of times: 4～10 times/day,
During the pet valve door closure state: from the ne-leakage phenomenon,
Experimental period, finish to end: do not have the sign that is corroded.
Accompanying drawing is the utility model structure sectional view.
Below in conjunction with accompanying drawing the utility model is done further narration:
Each parts is shown in the figure: frame () 1, filler 2, ceramic lined 3, frame (two) 4, tetrafluoro annulus 5, valve rod base 6, pottery mast 7, frame (three) 8, ceramic gasket ring 9, Expanded graphite seal ring 10, Glan 11, leading screw female seat 12, leading screw 13, handwheel 14, standing screw 15, internal and external screw thread link 16, internal thread attachment cap 17
As seen from the figure, the ceramic lined 3 of valve is a whole body, and frame then is combined into one by the screw connection by (one), (two), (three) three parts.Leading screw female seat 12 is connected to one by screw and frame, like this, when dextrorotation handwheel 14, leading screw 13 just moves down by the internal thread on the female seat 12, because the interconnect function of attachment cap 17 and link 16, leading screw 13 with ceramic mast 7 valve rod that unifies, thereby leading screw 13 move down must head on ceramic mast 7 move down until the tetrafluoro annulus on the valve rod base 6 with push up on the valve port place step till.The utility model utilized the tetrafluoro material at high temperature shape plastic, the cooling after no longer self-righting performance, with an internal diameter less than the identical tetrafluoro annulus of valve rod base 6 bottom boss internal diameters, external diameter with after high temperature adds thermal distortion, be socketed on the boss, make its cooling back interference fit, unlikelyly be subjected to mechanical force and come off, in this example, interference 2.5mm.Because bottom surface and its diametric plane of tetrafluoro annulus 5 are rectangular, when it is pushed up on the also rectangular step in valve port place, but just complete closed valve port, what both made that the valve port desire flows into is high temperature fluid, and tetrafluoro annulus 5 also can only deform in the axial direction and can not be out of shape diametrically and bad sealing, seepage phenomenon occur.Pottery mast 7 adopts solid construction, is in order to strengthen its mechanical strength in case valve stem crack.The purpose of standing screw 15 is to avoid the leading screw part directly to be threaded with ceramic segment under perforate on ceramic mast 7 top ends, because the ceramic screw thread of damage appears in this structure easily when driving valve.Filler 2 closes system by agent material powder and cement in this example.
Claims (1)
1, straight-through type ceramic lined high pressure valve is made up of frame and the leading screw female seat, the leading screw that are fixed as one with it, the handwheel that is contained in the leading screw top, it is characterized in that:
A, ceramic lined is housed, enriches with filler between shell and the lining at the frame inner chamber,
B, valve rod are made up of leading screw and ceramic solid mast, and ceramic mast base is the boss shape, and, internal diameter identical along external diameter with boss with an external diameter is socketed on the boss less than the tetrafluoro annulus interference of boss internal diameter, and be rectangular between annulus bottom surface and its diametric plane,
C, be subjected to process a right angle step on the valve port place ceramic lined wall of valve rod control switch and match with the valve rod base,
A deep hole is opened at d, ceramics pole masthead end face center, next root external thread rod in the hole, with the perfusion of bar and hole wall gap, a link of opening internal and external screw thread and above-mentioned external thread rod are exposed to the outer termination of ceramics pole masthead end and are threaded also that rivet welding is an one with filler
E, leading screw end are being fixed an attachment cap that has internal thread, and this cap is threaded with the above-mentioned link of opening internal and external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88213064 CN2038579U (en) | 1988-09-11 | 1988-09-11 | Straight-through type high voltage valve porcelain liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88213064 CN2038579U (en) | 1988-09-11 | 1988-09-11 | Straight-through type high voltage valve porcelain liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2038579U true CN2038579U (en) | 1989-05-31 |
Family
ID=4846251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88213064 Withdrawn CN2038579U (en) | 1988-09-11 | 1988-09-11 | Straight-through type high voltage valve porcelain liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2038579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2525994C1 (en) * | 2013-01-28 | 2014-08-20 | Учреждение Проектно-конструкторский и технологический институт трубопроводной арматуры (ПКТИ) "Атомармпроект" | Valve |
-
1988
- 1988-09-11 CN CN 88213064 patent/CN2038579U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2525994C1 (en) * | 2013-01-28 | 2014-08-20 | Учреждение Проектно-конструкторский и технологический институт трубопроводной арматуры (ПКТИ) "Атомармпроект" | Valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |