CN201187681Y - Accurate seal corrugated tube type steam drain valve - Google Patents
Accurate seal corrugated tube type steam drain valve Download PDFInfo
- Publication number
- CN201187681Y CN201187681Y CNU2008200747575U CN200820074757U CN201187681Y CN 201187681 Y CN201187681 Y CN 201187681Y CN U2008200747575 U CNU2008200747575 U CN U2008200747575U CN 200820074757 U CN200820074757 U CN 200820074757U CN 201187681 Y CN201187681 Y CN 201187681Y
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- bellows
- valve
- steam
- ball
- trap
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Abstract
The utility model relates to a highly efficient sealed corrugated pipe type steam draining valve used for the automatic steam prevention and water draining in a steam pipe network and a condensed water recovery system. The sealing surface of a corrugated pipe element inside the steam draining valve adopts ball-shaped seal, thus the complete sealing task under stress in arbitrary angles can be realized, the problems that the sealing of the draining valve is not tight and the steam leakage quantity is large are solved at root; further, an inner valve seat adopts a surface which forms an angle of 45 degrees with the central line of the ball-shaped valve core of the corrugated pipe element as an open-close sealing surface, thus the sealing performance of the corrugated pipe element under any working conditions is ensured, and the working performance and the service life of the steam draining valve are enhanced.
Description
Affiliated technical field
The utility model relates to a kind of Automatic steam trap Trap, in particular for the bellow type Automatic steam trap Trap of the automatic block steam and drain water of energy in steam pipe system and the steam heating tracing system.
Background technique
At present, bellows element with stretchability generally is used in the various temperature-sensitive valves, heat static force type Automatic steam trap Trap particularly, the heat static force type Automatic steam trap Trap mainly is the temperature difference that relies between saturated vapour and the water of condensation, causing that inner heat responsive element expands with heat and contract with cold produces distortion, drive spool opening and closing drain valve, wherein, adopt bellows element to be called the bellow type Automatic steam trap Trap as the drain valve of inner heat responsive element, existing bellow type Automatic steam trap Trap, general using cone angle sealed type bellows or plane sealing formula bellows open and close drain valve as heat responsive element.Through practical operation find no matter to use cone angle or plane, all exist and a series of problems such as lack in bellows element and valve seat fitted seal poor-performing, service behaviour instability, working life as sealing surface.
Summary of the invention
In order to solve the bellow type Automatic steam trap Trap since bellows element and valve base sealing poor performance, service behaviour instability, working life short problem, the utility model provides the bellow type Automatic steam trap Trap of a kind of modern design, rational in infrastructure, good seal performance on the technical foundation that has the bellow type Automatic steam trap Trap now.
Provided by the utility model is a kind of accurate seal bellows formula Automatic steam trap Trap, mainly by valve body, valve gap, bonnet, regulate bolt, bellows element, the bellows pillar, spring, the ball-type spool, valve seat, filter screen, the filter screen plug is formed, solve the technological scheme that its technical problem adopts and mainly contain 3 points: first, the bellows element sealing surface adopts the ball-type seal spool to replace cone angle sealing or plane sealing, having removed bellows element changes because of distortion produces angle, cause the problem of poor sealing performance, be implemented in arbitrarily angled stressed time, the radian of dependence ball-type spool is seal valve seat accurately; Second, also improve finishing the valve seat that opens and closes seal action jointly with the cooperation of bellows element ball-type valve core sealed cover, the sealing surface that is about to valve seat is designed to domatic from the horizontal by miter angle, when contacting with the ball-type spool of bellows element, guard mode is encircled in formation, move softly, help improving the stability of bellow type Automatic steam trap Trap service behaviour; The 3rd, at bellows element ball-type spool and valve seat, all adopt 3Cr13 material precision machining to form, and handle through tight high frequency heat, make the longer service life of whole bellow type Automatic steam trap Trap, economic benefit is higher.
The beneficial effects of the utility model mainly are, not only can effectively solve original bellow type drain valve because poor sealing performance, cause the problem of block steam and drain water effect failure, and select for use with high frequency heat by the strictness of material and to handle, can guarantee the serviceability and the practicability of this drain valve, improve the service behaviour and the working life of drain valve greatly.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of accurate seal bellows formula drain valve.
Fig. 2 is bellows element (5) and the longitudinal sectional drawing of valve seat (9) when being connected.
Among Fig. 1, valve body (1), valve gap (2), bonnet (3), adjusting bolt (4), bellows element (5), bellows pillar (6), spring (7), ball-type spool (8), valve seat (9), filter screen (10), filter screen plug (11).
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, when pipe network began to supply steam, air in the pipe network and cold condensate at first by filter screen (10), entered the valve pocket of drain valve along valve seat (9) under differential pressure conditions; Bellows element (5) is pushed away valve seat (9) under the active force of spring (7), drain valve is in opening state, and air and cold condensate are discharged drain valve rapidly by bellows pillar (6) along pipeline; And then the medium that enters valve pocket is elevated temperature heat water of condensation and steam, bellows element (5) heats up rapidly after entering valve pocket, and bellows element (5) expands and extends, and drives ball-type spool (8) and forms sealing with valve seat (9), close drain valve, steam and condensed water in high temperature are stored in the pipeline; Continuous cooling along with elevated temperature heat water of condensation in the valve pocket, when temperature is lower than the expansion temperature of bellows element (5), bellows element (5) reduces tension force and shrinks, add under the elastic force effect of upper spring (7), ball-type spool (8) is pushed away valve seat (9), and drain valve is opened again, low-temperature condensate in the pipeline continues discharging, when the valve pocket condensed water in high temperature reached bellows element (5) temperature sensor, drain valve was closed once more, quits work; The bellow type drain valve utilizes the temperature difference of steam and water of condensation to change distortion or zone of swelling movable valve plug (8) opening/shutting valve that causes bellows element (5), continuous or interruption draining.
As shown in Figure 2, behind bellows element (5) expanded by heating, the distortion if bellows element (5) is distorted, when not reaching stretched vertically, ball-type spool (8) relies on unique spherical camber line, still can realize the accurate sealing effect with valve seat (9); In addition; when valve seat (9) contacts ball-type spool (8) with the ball-type spool center line angle at 45 of bellows element is domatic; guard mode is encircled in its formation; move soft; avoid whole bellow type Automatic steam trap Trap working life and service behaviour being greatly improved because of frequent sealing damage ball-type spool (8).
Claims (4)
1, a kind of accurate seal bellows formula Automatic steam trap Trap, mainly form by valve body, valve gap, bonnet, adjusting bolt, bellows element, bellows pillar, spring, ball-type spool, valve seat, filter screen, filter screen plug, it is characterized in that valve inner is by installing bellows element, spring and valve seat composition opening/closing system, the bellows element top is provided with the adjusting bolt, and the bellows element outside is provided with the bellows pillar.
2,, it is characterized in that the inner bellows element of valve gap adopts through the strict heat treated ball-type spool of high frequency as sealing surface according to the accurate seal bellows formula Automatic steam trap Trap described in the claim 1.
3,, it is characterized in that the valve seat on the valve body adopts through the heat treated 3Cr13 material of high frequency according to the accurate seal bellows formula Automatic steam trap Trap described in the claim 1.
4,, it is characterized in that the valve seat on the valve body becomes miter angle with the ball-type spool center line of bellows element according to the accurate seal bellows formula Automatic steam trap Trap described in claim 1 and the claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200747575U CN201187681Y (en) | 2008-05-15 | 2008-05-15 | Accurate seal corrugated tube type steam drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200747575U CN201187681Y (en) | 2008-05-15 | 2008-05-15 | Accurate seal corrugated tube type steam drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201187681Y true CN201187681Y (en) | 2009-01-28 |
Family
ID=40310703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200747575U Expired - Lifetime CN201187681Y (en) | 2008-05-15 | 2008-05-15 | Accurate seal corrugated tube type steam drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201187681Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818850B (en) * | 2009-10-30 | 2012-10-24 | 兰州理工大学 | Corrugated pipe pilot piston steam trap |
| CN112728393A (en) * | 2021-01-18 | 2021-04-30 | 中科立得工业节能装备有限公司 | Visual regulation ripple steam trap |
-
2008
- 2008-05-15 CN CNU2008200747575U patent/CN201187681Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818850B (en) * | 2009-10-30 | 2012-10-24 | 兰州理工大学 | Corrugated pipe pilot piston steam trap |
| CN112728393A (en) * | 2021-01-18 | 2021-04-30 | 中科立得工业节能装备有限公司 | Visual regulation ripple steam trap |
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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: 20090128 |
|
| CX01 | Expiry of patent term |