CN102767689A - Spherical rotary steam trap valve - Google Patents
Spherical rotary steam trap valve Download PDFInfo
- Publication number
- CN102767689A CN102767689A CN2012102685381A CN201210268538A CN102767689A CN 102767689 A CN102767689 A CN 102767689A CN 2012102685381 A CN2012102685381 A CN 2012102685381A CN 201210268538 A CN201210268538 A CN 201210268538A CN 102767689 A CN102767689 A CN 102767689A
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- valve
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- ball core
- spring
- ball
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Abstract
The invention relates to a steam trap valve, in particular to a spherical rotary steam trap valve which is provided with a valve cover, a valve body, an automatic air exhausting device and a shutdown system. The shutdown system is provided with a floating ball, a valve seat body, a ball core, a valve seat, a retaining ring, a pressing ring, a valve seat cover, a spring, a sealing gasket, a valve rod, a clamp ring, a connecting plate, a U-shaped arm and a sliding bearing, and the automatic air exhausting device and the shutdown system are mounted on the valve cover. When the water level of condensed water in a valve cavity rises, the floating ball rises along with the water level, the ball core is driven to rotate by the U-shaped arm, and a water outlet is opened to drain the condensed water. When the water level of the condensed water in the valve cavity is changed, the floating ball rises or drops along with the water level, the valve rod and the ball core are driven by the U-shaped arm to automatically adjust opening of a valve port, and the condensed water is timely drained. When the condensed water stops entering the valve cavity, the floating ball drops along with the water level, the valve rod and the ball core are driven by the U-shaped arm, and the ball core rotates to a valve port closing position, so that drainage is stopped. When the condensed water reenters the valve cavity, a next cycle is started.
Description
Technical field
The present invention relates to a kind of Automatic steam trap Trap, especially relate to a kind of ball valve core structure, and be the Automatic steam trap Trap of the brand-new type of sphere rotary seal mode.
Background technique
Existing Automatic steam trap Trap has types such as mechanical-type, heat static force type and heat power type.Common mechanical-type lever float ball type steam drain valve adopts the conical surface sealing.Two kinds of structural types of single valve seat and bivalve seat are arranged; The mechanical-type lever float ball type steam drain valve structure of single valve stand structure is comparatively simple; But folk prescription bears uniaxial pressure, thereby causes very big opening resistance for overcoming uniaxial pressure to pressurized during work during unlatching; Therefore be confined to little discharge capacity, use in the Automatic steam trap Trap of low-pressure.If adopt the bivalve stand structure, owing to be provided with two isometrical weep holes, increased the outlet gross area, therefore increased the drain valve discharge capacity significantly.When this type of valve was in closed condition, upper and lower two pressure directions that spool bore that are positioned on the same axis were opposite, can the partial offset end thrust, thereby can reduce opening force greatly.
Common bivalve seat lever float ball type steam drain valve, two weep holes of lower valve base adopt equal diameter on it.Owing to adopt conical surface seal, receive the influence on the sealed width, last lower valve core compression area is just different.A new valve that uses, its sealing surface of seat width is narrower, is bordering on the wire conical surface.Though at this moment it is not very big to go up lower valve core positive-reverse thrust difference, certainly, pressure reduction is high more just big more; But along with increase service time, sealed width little by little increases because of wearing and tearing, thereby also increase thereupon of drain valve opening force, and increasing, this will cause the drain valve unstable properties in addition can't open, functional reliability is poor.
Chinese patent ZL200510081595.9 discloses the bivalve seat lever float ball type steam drain valve of a kind of pressure balance, stability and good reliability.Be provided with ball float, lever, bearing pin, pin, connecting rod, valve rod, go up lower valve core, go up the lower valve core positioning block, go up lower valve base, pad, nut, coupling head, attachment pegs and lever dolly; One end of lever connects with ball float; The other end of lever connects with the upper end of connecting rod with pin, and lever and bearing pin are matched and be supported on the lever dolly, and lever dolly is located at the upper valve base top; The lower end of connecting rod is matched through attachment pegs and coupling head; Pad, upper valve core and upper valve core positioning block are inserted in valve rod top, and it is interior and matched by the following conical surface of nut and upper valve base that upper valve core is located at upper valve base, and coupling head connects the valve rod top; Stem lower portion that can adjustment is inserted lower valve core and lower valve core positioning block, lower valve core be located at lower valve base interior and with lower valve base under the conical surface matched.This bivalve seat lever float ball type steam drain valve can guarantee the lower valve core bearing area, is newly also to be to use valve after the wearing and tearing, all to be to equate fully that with valve spool thrust up and down reaches balance, has improved performance.But also there is a difficult problem of closing valve threshold state spool contraposition stability and poor reliability in the valve of this structure.
Up to now, in the drain valve field, the report of the relevant sphere rotary steam of Shang Weijian drain valve.
Summary of the invention
The objective of the invention is to be directed against existing mechanical type bivalve seat lever float ball type steam drain valve and have shortcoming such as spool contraposition existence stability and poor reliability when closing threshold state; A kind of pressure complete equilibrium is provided; Stability and reliability are high, the sphere rotary steam drain valve that discharge capacity is bigger.
The present invention is provided with valve gap, valve body, automatic emptying device of air and shutdown system, and said shutdown system is provided with ball float, valve body, ball core, valve seat, retaining ring, trim ring, valve seat lid, spring, sealing gasket, valve rod, jump ring circle, joining plate, U-shaped arm and sliding bearing.
Said automatic emptying device of air and shutdown system are installed on the valve gap; Said valve body is provided with balance release circular groove, and said ball core is installed in the valve body inner chamber, and said valve seat is contained in ball core two ends respectively, and the sealing surface of valve seat contacts with ball core sphere and forms two spherical sealing surfaces; Said retaining ring is respectively charged in the outer and valve body concave station of valve seat; Said trim ring is respectively charged into outside the valve seat and is fitted in the end face of retaining ring and seal ring; Said seal ring is located at respectively in valve body and the retaining ring concave station; Said valve seat lid and sealing gasket are contained in respectively in the concave station of valve body two ends and with hex head bolt and compress sealing; Said spring is pressed on the valve seat inclined-plane boss on the end face with trim ring and is inserted in locating slot in the valve seat lid; Said valve gap is connected by bolt and nut with valve body, and the synthetic valve pocket of wound gasket and sealing group is housed between valve gap and the valve body; The straight end-face key of two valve rods matches with two keyways of ball core side, and said two valve rods are installed in former and later two coaxial holes of valve body, in this hole sliding bearing are housed; Two valve rod heads are inserted at said U-shaped arm two ends respectively, and match with joining plate square hole and two valve rod square holes; The mider hole of U-shaped arm matches with the connecting rod that ball float stretches out, and fixes with the jump ring back-up ring; Rotation U-shaped arm can rotate the ball core through two valve rods, realizes the opening and closing of valve port.
Said spring can adopt belleville spring or helical spring; Said belleville spring (plane) is installed between valve seat lid and the valve seat, and bolt produces elastic force through holddown spring, forces on two valve seats, makes between valve seat and the ball core sealing surface and produces sealing load.Establish spring seat on the said helical spring.
The present invention is connected with steam use equipment through the import and export on the valve gap, and critical component of the present invention---shutdown system is installed in the valve pocket, and the high and low variation of condensation water level makes ball float pass through U-shaped arm rotating sphere core eliminating water of condensation in the valve pocket.
Working principle of the present invention is following:
Said sphere rotary steam drain valve is installed in the outlet of using steaming plant, and when water of condensation water level in the valve pocket raise, ball float raise with the rising of water level, and drives the rotation of ball core through the U-shaped arm, opens drain opening, discharges water of condensation.When condensation water level in the valve pocket changed, ball float following water-level lifting and going up and down drove the aperture of valve rod and ball core automatic regulating valve mouth through the U-shaped arm, in time gets rid of water of condensation.When water of condensation stopped to get into valve pocket, ball float descended with drawdown, drove valve rod and ball core through the U-shaped arm, and the position, the draining that make the ball core forward close port to promptly stop.When water of condensation got into valve pocket once more, work cycle was restarted next time.
One of main part of the present invention valve body has adopted the angie type valve body structure with special balance release circular groove; And be designed to the unified sealed diameter D of balance; Thereby make pressure medium manifest the state that is symmetrically distributed fully and act on the ball core; Be the stressed in all fields balance that obtains of ball core, be equivalent to free state.Two valve seats because adopted balance to unify sealed diameter, left and right sides bearing area is to equate fully.This is for each valve seat, and horizontal direction force is an equal and opposite in direction, and is in the opposite direction.After the counteracting, single valve seat all is in free state (if the negligible by contrast words of deadweight) except that spring-loaded.
The present invention can keep ball core and both sides valve base chamber sealing load only to be decided by both sides spring (dish or helical spring) pressure and have nothing to do with the pressure medium size.Ball core and valve base chamber keep certain elastic force, thereby can guarantee stable and rational seal pressure.
Compare with existing mechanical type lever float ball type steam drain valve; Because the present invention adopts the sphere rotating seal; Its sealing means is superior to the conical surface seal mode; The sealing contraposition is accurate, sealing is stable, has overcome bivalve seat lever float ball type steam drain valve conical surface seal contraposition accuracy, poor synchronization when closing threshold state, seals inadequately shortcoming reliably.
In sum, the present invention has following outstanding advantage:
1) the sphere rotary seal mode of employing ball cored structure, the sealing contraposition is accurate, and sealability is excellent.In the drain valve field is a unique innovative design.
2) employing has the angie type valve body structure of special balance pressure release circular groove, makes pressure medium act on the ball core with being symmetrically distributed, makes its stressed complete equilibrium that reaches.
3) ball core sealing force adopts the elastic compensating structure, promptly stably forces in the valve seat on both sides with belleville spring or helical spring group, can realize that sealing surface wear compensation, sealability are excellent, reliable and stable.
4) the Automatic steam trap Trap design that can be used under big discharge capacity and the mesohigh difference is used.
Description of drawings
Fig. 1 is the overall structure schematic representation of the embodiment of the invention.
Fig. 2 adopts the valve seat construction schematic representation of belleville spring for the embodiment of the invention.
Fig. 3 is helical spring valve seat construction schematic representation for the embodiment of the invention adopts.
Fig. 4 is the valve stem slides bearing structure partial view of the embodiment of the invention.
Embodiment
Referring to Fig. 1,2,4; The embodiment of the invention is provided with valve gap 9, valve body 24, automatic emptying device of air 20 and shutdown system, and said shutdown system is provided with ball float 1, valve body 2, ball core 3, valve seat 4, retaining ring 5, trim ring 6, valve seat lid 7, belleville spring 8, sealing gasket 10, valve rod 14, jump ring circle 16, joining plate 17, U-shaped arm 18 and sliding bearing 19.
Said automatic emptying device of air 20 is installed on the valve gap 9 with shutdown system; Said valve body 2 is provided with balance release circular groove 12, and said ball core 3 is installed in valve body 2 inner chambers, and said valve seat 4 is contained in ball core 3 two ends respectively, and the sealing surface of valve seat 4 contacts with ball core 3 spheres and forms two spherical sealing surfaces; Said retaining ring 5 is respectively charged in outer and valve body 2 concave stations of valve seat 4; Said trim ring 6 is respectively charged into outside the valve seat 4 and is fitted in retaining ring 5 and the end face of seal ring 11; Said seal ring 11 is located at respectively in valve body 2 and retaining ring 5 concave stations; Said valve seat lid 7 is contained in the valve body 2 two ends concave stations respectively with sealing gasket 10 and compresses sealing with hex head bolt 13; Said spring 8 is pressed on the valve seat 4 inclined-plane boss on the end face with trim ring 6 and is inserted in locating slots in the valve seat lid 7; Said valve gap 9 is connected by bolt and nut 15 with valve body 24, and the synthetic valve pocket of wound gasket 23 and sealing group is housed between valve gap 9 and the valve body 24; The straight end-face key of two valve rods 14 matches with two keyways of ball core 3 sides, and said two valve rods 14 are installed in valve body 2 former and later two coaxial holes, and sliding bearing 19 is housed in this hole; Two valve rod 14 heads are inserted at said U-shaped arm 18 two ends respectively, and match with joining plate 17 square holes and two valve rod 14 square holes; The mider hole of U-shaped arm 18 matches with the connecting rod that ball float 1 stretches out, and fixing with jump ring back-up ring 16; Rotation U-shaped arm 18 can rotate ball core 3 through two valve rods 14, realizes the opening and closing of valve port.
Valve body in the said shutdown system is provided with balance release circular groove, and said ball core is installed in the valve body inner chamber, and said valve seat is contained in ball core two ends respectively, and sealing surface contacts with ball core sphere, forms two spherical sealing surfaces; Said retaining ring is respectively charged in valve seat external diameter and the valve body concave station; Said trim ring is respectively charged into the valve seat external diameter and is fitted in retaining ring and the end face of seal ring; Said seal ring is located at respectively in valve body and the retaining ring concave station (sees Fig. 2, Fig. 3);
Referring to Fig. 2, said spring adopts belleville spring 8, and said belleville spring (plane) is installed between valve seat lid 7 and the valve seat 4, and bolt produces elastic force through holddown spring, forces on two valve seats, makes between valve seat and the ball core sealing surface and produces sealing load.
Referring to Fig. 3, said spring adopts helical spring 21, establishes spring seat 22 on the said helical spring 21.After adopting helical spring 21, produce sealing force with helical spring, its sealing principle is identical with the employing butterfly spring.
Said spring is pressed on the valve seat inclined-plane boss on the end face with trim ring and is inserted in locating slot in the valve seat lid, and said valve seat lid and sealing gasket are contained in respectively in the concave station of valve body two ends, compress sealing with hex head bolt and (see Fig. 2, Fig. 3); Two keyways of said ball core side and the straight end-face key of two valve rods match, and said two valve rods are installed in former and later two coaxial holes of valve body, in this hole sliding bearing are housed; Two valve rod heads are inserted at said U-shaped arm two ends respectively, and match with joining plate square hole and two valve rod square holes; The mider hole of U-shaped arm matches with the connecting rod that ball float stretches out, and fixes with the jump ring circle; Rotation U-shaped arm can rotate the ball core through two valve rods, realizes the opening and closing (referring to Fig. 4) of valve port.
Claims (4)
1. sphere rotary steam drain valve; It is characterized in that being provided with valve gap, valve body, automatic emptying device of air and shutdown system, said shutdown system is provided with ball float, valve body, ball core, valve seat, retaining ring, trim ring, valve seat lid, spring, sealing gasket, valve rod, jump ring circle, joining plate, U-shaped arm and sliding bearing;
Said automatic emptying device of air and shutdown system are installed on the valve gap; Said valve body is provided with balance release circular groove, and said ball core is installed in the valve body inner chamber, and said valve seat is contained in ball core two ends respectively, and the sealing surface of valve seat contacts with ball core sphere and forms two spherical sealing surfaces; Said retaining ring is respectively charged in the outer and valve body concave station of valve seat; Said trim ring is respectively charged into outside the valve seat and is fitted in the end face of retaining ring and seal ring; Said seal ring is located at respectively in valve body and the retaining ring concave station; Said valve seat lid and sealing gasket are contained in respectively in the concave station of valve body two ends and with hex head bolt and compress sealing; Said spring is pressed on the valve seat inclined-plane boss on the end face with trim ring and is inserted in locating slot in the valve seat lid; Said valve gap is connected by bolt and nut with valve body, and the synthetic valve pocket of wound gasket and sealing group is housed between valve gap and the valve body; The straight end-face key of two valve rods matches with two keyways of ball core side, and said two valve rods are installed in former and later two coaxial holes of valve body, in this hole sliding bearing are housed; Two valve rod heads are inserted at said U-shaped arm two ends respectively, and match with joining plate square hole and two valve rod square holes; The mider hole of U-shaped arm matches with the connecting rod that ball float stretches out, and fixes with the jump ring back-up ring; Rotation U-shaped arm can rotate the ball core through two valve rods, realizes the opening and closing of valve port.
2. sphere rotary steam drain valve as claimed in claim 1 is characterized in that said spring adopts belleville spring or helical spring.
3. sphere rotary steam drain valve as claimed in claim 2; It is characterized in that said belleville spring is installed between valve seat lid and the valve seat; Bolt produces elastic force through holddown spring, forces on two valve seats, makes between valve seat and the ball core sealing surface and produces sealing load.
4. sphere rotary steam drain valve as claimed in claim 2 is characterized in that establishing spring seat on the said helical spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268538.1A CN102767689B (en) | 2012-07-31 | 2012-07-31 | Spherical rotary steam trap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268538.1A CN102767689B (en) | 2012-07-31 | 2012-07-31 | Spherical rotary steam trap valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102767689A true CN102767689A (en) | 2012-11-07 |
| CN102767689B CN102767689B (en) | 2015-02-25 |
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ID=47095194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210268538.1A Expired - Fee Related CN102767689B (en) | 2012-07-31 | 2012-07-31 | Spherical rotary steam trap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102767689B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382452A (en) * | 2016-12-07 | 2017-02-08 | 无锡优耐特净化装备有限公司 | Ball float type steam trap valve |
| CN113551145A (en) * | 2021-08-07 | 2021-10-26 | 纽顿流体科技有限公司 | Ball float proportional control trap |
| CN113819389A (en) * | 2021-10-12 | 2021-12-21 | 甘肃红峰机械有限责任公司 | Torsion spring assisted medium-high pressure steam trap |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3711017A (en) * | 1970-02-14 | 1973-01-16 | K Fujiwara | Automatic vent valve for a steam trap |
| DD221812A1 (en) * | 1983-10-25 | 1985-05-02 | Lothar Boehm | CONDENSATE LINE WITH FLOAT CONTROL |
| JPH0544895A (en) * | 1991-08-14 | 1993-02-23 | Tlv Co Ltd | Float valve |
| CN2163926Y (en) * | 1993-08-14 | 1994-05-04 | 常泽文 | Floating ball drainage valve |
| CN1107550A (en) * | 1993-03-17 | 1995-08-30 | Tlv有限公司 | Device for feeding liquid under pressure |
| JP2001141189A (en) * | 1999-11-16 | 2001-05-25 | Tlv Co Ltd | Float type drain trap |
| JP2002188793A (en) * | 2000-12-19 | 2002-07-05 | Spirax Sarco Ltd | Air vent valve for steam trap |
| JP4938629B2 (en) * | 2007-11-15 | 2012-05-23 | 株式会社テイエルブイ | Float type steam trap |
| CN202252806U (en) * | 2011-08-01 | 2012-05-30 | 洪新强 | Floating ball guiding type steam trap |
| CN202756897U (en) * | 2012-07-31 | 2013-02-27 | 洪新强 | Spherical rotary type steam trap valve |
-
2012
- 2012-07-31 CN CN201210268538.1A patent/CN102767689B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3711017A (en) * | 1970-02-14 | 1973-01-16 | K Fujiwara | Automatic vent valve for a steam trap |
| DD221812A1 (en) * | 1983-10-25 | 1985-05-02 | Lothar Boehm | CONDENSATE LINE WITH FLOAT CONTROL |
| JPH0544895A (en) * | 1991-08-14 | 1993-02-23 | Tlv Co Ltd | Float valve |
| CN1107550A (en) * | 1993-03-17 | 1995-08-30 | Tlv有限公司 | Device for feeding liquid under pressure |
| CN2163926Y (en) * | 1993-08-14 | 1994-05-04 | 常泽文 | Floating ball drainage valve |
| JP2001141189A (en) * | 1999-11-16 | 2001-05-25 | Tlv Co Ltd | Float type drain trap |
| JP2002188793A (en) * | 2000-12-19 | 2002-07-05 | Spirax Sarco Ltd | Air vent valve for steam trap |
| JP4938629B2 (en) * | 2007-11-15 | 2012-05-23 | 株式会社テイエルブイ | Float type steam trap |
| CN202252806U (en) * | 2011-08-01 | 2012-05-30 | 洪新强 | Floating ball guiding type steam trap |
| CN202756897U (en) * | 2012-07-31 | 2013-02-27 | 洪新强 | Spherical rotary type steam trap valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382452A (en) * | 2016-12-07 | 2017-02-08 | 无锡优耐特净化装备有限公司 | Ball float type steam trap valve |
| CN113551145A (en) * | 2021-08-07 | 2021-10-26 | 纽顿流体科技有限公司 | Ball float proportional control trap |
| CN113819389A (en) * | 2021-10-12 | 2021-12-21 | 甘肃红峰机械有限责任公司 | Torsion spring assisted medium-high pressure steam trap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102767689B (en) | 2015-02-25 |
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Granted publication date: 20150225 Termination date: 20170731 |