CN203718045U - Three-valve set of corrugated pipe instrument - Google Patents
Three-valve set of corrugated pipe instrument Download PDFInfo
- Publication number
- CN203718045U CN203718045U CN201320751919.5U CN201320751919U CN203718045U CN 203718045 U CN203718045 U CN 203718045U CN 201320751919 U CN201320751919 U CN 201320751919U CN 203718045 U CN203718045 U CN 203718045U
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- CN
- China
- Prior art keywords
- valve
- internal thread
- hole
- valve rod
- seal
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000000945 filler Substances 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 18
- 238000012856 packing Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- -1 Packing seat Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
Abstract
The utility model discloses a three-valve set of a corrugated pipe instrument. The three-valve set comprises a valve body, valve cores, lower valve rods, metal gaskets, metal corrugated pipes, valve seats, valve covers, fillers, filler cushions, steel balls, upper valve rods, seal cushions, filler rings, seal pressure cushions and compression nuts, wherein the valve body is a carrier which is formed by processing a cuboid and integrates three valves; three inner thread valve cavities matched with the valve seats are distributed in the two ends and the middle of the valve body. According to the three-valve set, the valve cores together with the lower valve rods and flanges are directly welded with the metal corrugated pipes and arranged among the valve body, the valve seats and the valve covers, and the upper valve rods are flexibly connected with the lower valve rods by the steel balls. The three-valve set adopts a multi-safety structure of metal corrugated pipe shielding seal, lower valve rod filling seal and upper valve rod re-filling seal, and is a high-temperature high-pressure corrugated pipe valve set with good reliable seal property and high safety performance.
Description
Technical field
The utility model relates to design and the manufacture of valve, is widely used in liquid in the instrumentation pipelines such as all kinds of flows, differential pressure, pressure of industrial automation control system or keying and the control gear of gas.
Background technique
At present, the instrument three valve groups of extensive use all realize sealing by filler, owing to there being motion between filler and valve rod, produce inevitable friction and wear factor, thereby structurally exist the possibility of leakage, and some medium (as: high temperature, high pressure, poisonous, inflammable, explosive, have radioactivity etc. to work the mischief to safety, environment and biological health) does not allow to leak outside.The current bellows stop valve structure of China is single, can only be applied under the working condition of low pressure, low temperature and security medium, and working life is short, is not suitable for high temperature, high pressure and occasion dangerous or that may damage environment, life.
Summary of the invention
The object of the present invention is to provide a kind of bellows instrument three valve groups with the spacious sealing of the peripheral pressurized screen of metal bellows, spool is together with lower valve rod and flange is direct and metal bellows welds and is placed between valve body, valve seat and valve gap, upper valve rod and lower valve rod adopt that steel ball is active to be connected, the spacious sealing of wavy metal tube panel, lower valve rod packing seal and the upper valve rod gland sealed multiple security structure again of carrying out valve group are a kind of High Temperature High Pressure Bellows valves groups with highly reliable sealing and high safety performance.
Technological scheme of the present invention is:
1, a kind of bellows instrument three valve groups, by valve body, spool, lower valve rod, metal washer, metal bellows, valve seat, valve gap, filler, Packing seat, steel ball, upper valve rod, sealing gasket, insertion ring, sealed pressure pad, the compositions such as gland nut, it is characterized in that: valve body is three integrated carriers of valve being processed into by a cuboid, three internal thread valve pocket B that coordinate with valve seat are distributed in two ends and the medium position of valve body, the perpendicular both sides end face of internal thread valve pocket B at valve body two ends have respectively into, outlet screw thread, import thread bottom hole A communicates with internal thread valve pocket B lower hole E, outlet thread bottom hole C communicates with internal thread valve pocket B, two ends internal thread valve pocket B base apertures F, one end communicates with middle part internal thread valve pocket B lower hole D, and the other end communicates with middle part internal thread valve pocket B, there is respectively a symmetrical mounting hole G internal thread valve pocket B both sides, middle part.
2, metal bellows is made up of one deck to the equal thin metallic tubd of multilayer wall thickness, determine respectively the different number of plies and wall thickness according to the height of valve pressure and temperature, its length, the pitch of waves, wave number and inner and outer diameter design according to technical parameters such as the flow of valve, latus rectum, switching paths; One end of lower valve rod coordinates with spool, and the other end is hole, and the bottom in hole is plane, uniform multiple apertures on the relevant position of its circumference, and the lower end surface of upper valve rod is circular arc, has arc-shaped groove on excircle; Metal bellows is enclosed within on lower valve rod, one end and lower valve rod bottom, the other end and flange welding sealing, spool and lower valve rod welding, upper valve rod is inserted in the hole of lower valve rod, circular arc end face is contacted with the base plane in hole, in each aperture, pack the steel ball of same size into, simultaneously steel ball is placed in the arc-shaped groove of upper valve rod bottom, make upper valve rod and lower valve rod by steel ball active couple together; Be placed in valve seat, after flange has respectively packing ring and valve gap to closely cooperate up and down, lower locknut locking, filler and Packing seat are housed in valve gap, screw adjusting element its promotion Packing seat is pressed on filler between lower valve rod and valve gap, upper locknut is screwed to locking, form packing seal; Pack sealing gasket, insertion ring, sealing clamping ring on adjusting element top, regulate and screw gland nut, form insertion ring and seal again; Load onto handle or handwheel, form valve group top assembly.
3, the valve seat of top assembly is loaded onto to metal washer and screw in respectively three internal thread valve pocket B of valve body fastening, between the internal thread valve pocket B oral area of valve seat, metal washer and valve body, seal; Rotatable handle or handwheel, upper valve rod spiral lifting, under the effect of the active linkage structure of steel ball, makes lower valve rod and spool not rotate upper and lower straight line motion, carries out and opens and closes.
4, three integrated each architectonicals of valve, communicate with both sides valve while opening middle valve, and while closing middle valve and both sides valve cuts off.
Advantage of the present invention and beneficial effect are:
1, the present invention adopts the spacious sealing of the peripheral pressurized metal screen of metal bellows and metal washer hard sealing structure; high temperature high voltage resistant sealability excellence, reliable; there is again the protection of high temperature high voltage resistant filler secondary seal; preventing having realized double-sealing, dual fail-safe aspect external leakage, be specially adapted to high temperature, high pressure and the aspects such as health, safety, environment had to medium and the occasion of harm.
2, because metal bellows and lower packing seal all concentrate in lower valve rod one, when operated valve, lower valve rod does not rotate and moves up and down in filler and metal bellows, friction between filler and the lower valve rod greatly reducing, has improved working life and the operating characteristics of valve greatly.
3, between upper and lower valve rod, adopt the active linkage structure of steel ball, spin friction active force is dropped to minimum, make the operation of valve free and relaxed.
4, due to the seal action of upper insertion ring, make it with outside isolated, be not subject to external environment influence.
5, prevent that valve group from opening or closing loosening, be applicable to being applied in the occasion of vibrations.
Brief description of the drawings
Fig. 1 is bellows instrument three valve block structure sectional drawings;
Fig. 2 is that sectional structure chart is looked on the right side of Fig. 1.
In figure: 1, valve body 2, spool 3, lower valve rod 4, metal washer 5, metal bellows 6, valve seat 7, lower locknut 8, valve gap 9, packing ring 10, flange 11, packing ring 12, Packing seat 13, filler 14, steel ball 15, adjusting element 16, upper locknut 17, sealing gasket 18, insertion ring 19, sealing clamping ring 20, gland nut 21, upper valve rod 22, handle or handwheel 23, socket head screw A, import thread bottom hole B, internal thread valve pocket C, outlet thread bottom hole D, middle part internal thread valve pocket lower hole E, internal thread valve pocket lower hole F, internal thread valve pocket base apertures G, mounting hole.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
1, a kind of bellows instrument three valve groups, by valve body (1), spool (2), lower valve rod (3), metal washer (4), metal bellows (5), valve seat (6), valve gap (8), filler (13), Packing seat (12), steel ball (14), upper valve rod (21), sealing gasket (17), insertion ring (18), sealed pressure pad (19), the compositions such as gland nut (20), it is characterized in that: valve body (1) is three integrated carriers of valve being processed into by a cuboid, three internal thread valve pockets (B) that coordinate with valve seat (6) are distributed in two ends and the medium position of valve body (1), the perpendicular both sides end face of internal thread valve pocket (B) at valve body (1) two ends have respectively into, outlet screw thread, import thread bottom hole (A) communicates with internal thread valve pocket lower hole (E), outlet thread bottom hole (C) communicates with internal thread valve pocket (B), two ends internal thread valve pocket base apertures (F), one end communicates with middle part internal thread valve pocket lower hole (D), and the other end communicates with middle part internal thread valve pocket (B), there is respectively a symmetrical mounting hole (G) internal thread valve pocket (B) both sides, middle part.
2, metal bellows (5) is made up of one deck to the equal thin metallic tubd of multilayer wall thickness, determine respectively the different number of plies and wall thickness according to the height of valve pressure and temperature, its length, the pitch of waves, wave number and inner and outer diameter design according to technical parameters such as the flow of valve, latus rectum, switching paths; One end of lower valve rod (3) coordinates with spool (2), and the other end is hole, and the bottom in hole is plane, uniform multiple apertures on the relevant position of its circumference, and the lower end surface of upper valve rod (21) is circular arc, has arc-shaped groove on excircle; Metal bellows (5) is enclosed within on lower valve rod (3), one end and lower valve rod (3) bottom, the other end and flange (10) welded seal, spool (2) and lower valve rod (3) welding, upper valve rod (21) is inserted in the hole of lower valve rod (3), circular arc end face is contacted with the base plane in hole, in each aperture, pack the steel ball (14) of same size into, simultaneously steel ball (14) is placed in the arc-shaped groove of upper valve rod (21) bottom, make upper valve rod (21) and lower valve rod (3) by steel ball (14) active couple together; Be placed in valve seat (6), flange (10) after having respectively up and down packing ring (9) (11) and valve gap (8) to closely cooperate locks lower locknut (7), filler (13) and Packing seat (12) are housed in valve gap (8), screwing adjusting element (15) makes its promotion Packing seat (12) that filler (13) is pressed between lower valve rod (3) and valve gap (8), upper locknut (16) is screwed to locking, form filler (13) sealing; Pack sealing gasket (17), insertion ring (18), sealing clamping ring (19) on adjusting element (15) top, regulate and screw gland nut (20), form insertion ring (18) and seal again; Load onto handle or handwheel (22), form valve group top assembly.
3, the valve seat of top assembly (6) is loaded onto to metal washer (4) and screw in respectively three internal thread valve pockets (B) of valve body (1) fastening, between the internal thread valve pocket B oral area of valve seat (6), metal washer (4) and valve body (1), seal; Rotatable handle or handwheel (22), upper valve rod (21) spiral lifting, under the effect of the active linkage structure of steel ball (14), makes lower valve rod (3) and spool (2) not rotate upper and lower straight line motion, carries out and opens and closes.
4, three integrated each architectonicals of valve, communicate with both sides valve while opening middle valve, and while closing middle valve and both sides valve cuts off.
Claims (3)
1. bellows instrument three valve groups, by valve body (1), spool (2), lower valve rod (3), metal washer (4), metal bellows (5), valve seat (6), valve gap (8), filler (13), Packing seat (12), steel ball (14), upper valve rod (21), sealing gasket (17), insertion ring (18), sealed pressure pad (19), gland nut (20) composition, it is characterized in that: valve body (1) is a cuboid, three internal thread valve pockets (B) that coordinate with valve seat (6) are distributed in two ends and the medium position of valve body (1), the perpendicular both sides end face of internal thread valve pocket (B) at valve body (1) two ends have respectively into, outlet screw thread, import thread bottom hole (A) communicates with internal thread valve pocket lower hole (E), outlet thread bottom hole (C) communicates with internal thread valve pocket (B), two ends internal thread valve pocket base apertures (F), one end communicates with middle part internal thread valve pocket lower hole (D), and the other end communicates with middle part internal thread valve pocket (B), there is respectively a symmetrical mounting hole (G) internal thread valve pocket (B) both sides, middle part.
2. according to a kind of bellows instrument three valve groups claimed in claim 1, it is characterized in that: one end of lower valve rod (3) coordinates with spool (2), the other end is hole, the bottom in hole is plane, uniform multiple apertures on the relevant position of its circumference, the lower end surface of upper valve rod (21) is circular arc, has arc-shaped groove on excircle.
3. according to a kind of bellows instrument three valve groups claimed in claim 2, it is characterized in that: upper valve rod (21) with lower valve rod (3) by active connection of steel ball (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751919.5U CN203718045U (en) | 2013-11-25 | 2013-11-25 | Three-valve set of corrugated pipe instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751919.5U CN203718045U (en) | 2013-11-25 | 2013-11-25 | Three-valve set of corrugated pipe instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718045U true CN203718045U (en) | 2014-07-16 |
Family
ID=51157196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320751919.5U Expired - Lifetime CN203718045U (en) | 2013-11-25 | 2013-11-25 | Three-valve set of corrugated pipe instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718045U (en) |
-
2013
- 2013-11-25 CN CN201320751919.5U patent/CN203718045U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |