CN201547484U - Saturated steam pressure type bellows steam trap - Google Patents
Saturated steam pressure type bellows steam trap Download PDFInfo
- Publication number
- CN201547484U CN201547484U CN2009201442511U CN200920144251U CN201547484U CN 201547484 U CN201547484 U CN 201547484U CN 2009201442511 U CN2009201442511 U CN 2009201442511U CN 200920144251 U CN200920144251 U CN 200920144251U CN 201547484 U CN201547484 U CN 201547484U
- Authority
- CN
- China
- Prior art keywords
- valve
- bellows
- pressure type
- valve body
- trap
- 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 - Fee Related
Links
Images
Abstract
The utility model relates to a saturated steam pressure type bellows steam trap, which is characterized in that a filter screen 3 is installed in a lower-part cavity of an inlet of a valve body 2 and is fixed with a sewage filter plug 1 and the valve body 2, and a valve seat 4 is in threaded connection with the valve body 2; and a valve cover 11 is in bolted connection with the vale body 2.
Description
Technical field
The utility model relates to a kind of hot static(al) formula Automatic steam trap Trap.
Background technique
The bellows drain valve is a kind of hot static(al) formula Automatic steam trap Trap, be widely used on industrial steam equipment such as oil, chemical industry, papermaking, medicine, food, heating pipeline, heat traced pipeline and small heat-exchanger and the heat supply heating pipeline, the advantage that makes full use of heat energy is arranged, being specially adapted to occasions such as steam tracing pipeline, steam heating, is the environment-friendly and energy-efficient Automatic steam trap Trap.The bellows element of existing bellows Automatic steam trap Trap is owing to the long-time influence of unbalance power of steam condensate to it, be subjected to the bigger effect of fluid impulse force near inlet side, (especially when working pressure is higher) tends to occur bellows element fatigue in use for some time, axis produces crooked, valve closing is not tight when making the action of bellows heat power element, produce and leak vapour, even lost efficacy.Secondly the runner of the valve nozzle of bellows Automatic steam trap Trap is less, and when working pressure was higher, velocity of medium was bigger, and is stronger to the erosion corrosion of valve nozzle, and the valve nozzle sealing surface wear is serious, causes valve seat and flap poorly sealed, leaks the vapour rate and increases.In addition, existing product, temperature can only be filled the phase change medium transmission by a side (outer wall) in bellows, and heat transfer area is little, and transmission rate is slow, causes valve event slow excessively, and the leakage vapour rate of drain valve is big, and it is serious to lag behind.
Summary of the invention
The purpose of this utility model provides a kind of saturated vapor pressure formula bellows Automatic steam trap Trap.
The utility model is a kind of saturated vapor pressure formula bellows Automatic steam trap Trap, comprise valve body 2, valve gap 11, valve seat 4, saturated vapour pressure type bellows 7, flap 6, filter screen 3, filter screen 3 is loaded in the entry end lower cavity of valve body 2, fixing with the dirty screw plug 1 of filter with valve body 2, valve seat 4 and valve body 2 be by being threaded, and valve gap 11 and valve body 2 are connected by bolt.
The utility model is compared with prior art, establishes W shape in the bellows and rigidly fixes frame, has guaranteed that bellows has only axial distortion, has played the effect of overload protection, has improved the rigidity and the stability of bellows element.Rigidly fix frame and have aperture, fluid enters the bellows inboard by aperture, has increased heat transfer area, has improved the sensitivity of bellows action, has reduced the leakage vapour rate of Automatic steam trap Trap.An enlarging is set at the valve nozzle place, and the minimizing fluid washes away the valve nozzle sealing surface, has guaranteed sealing simultaneously, has improved the service behaviour and the working life of Automatic steam trap Trap.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and Fig. 2 is an A place partial enlarged drawing among Fig. 1.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, filter screen 3 of the present utility model is loaded in the entry end lower cavity of valve body 2, and is fixing with valve body 2 with filter dirty screw plug 1, and valve seat 4 and valve body 2 be by being threaded, and valve gap 11 and valve body 2 are connected by bolt.Saturated vapour pressure type bellows 7 inside are provided with one and rigidly fix frame 8, and the 7 one end roll weldings of saturated vapour pressure type bellows are outside rigidly fixing frame 8, and the other end roll welding is at flap 6 outward edges.Valve nozzle 5 places of valve seat 4 are provided with an enlarging, and flap 6 adopts the plane to seal firmly with the sealing surface of valve seat 4.The shape of camber line groove in the middle of the both sides up and down of flap 6 are.Rigidly fix frame 8 and be W shape, the upper end has a circle aperture 9, and is fixing with the welding of fixed plate 10 outward edges.On the fixed plate 10 screw thread is arranged, be connected and fixed by screw thread and valve gap 11.
As shown in Figure 1 and Figure 2; valve nozzle 5 places offer an enlarging b; when medium passes through valve nozzle 5; cross section of fluid channel is bigger at enlarging b place, and 4 inner flow passage cross section a are less for valve seat, by equation of continuity as can be known; be lowered in enlarging place flow rate of fluid; reduced the erosive wear effect of medium, protected the sealing surface of flap 6, the service behaviour of whole bellows drain valve and working life are greatly improved with valve seat 4 to valve nozzle 5.
As shown in Figure 1, saturated vapour pressure type bellows Automatic steam trap Trap is in opening state.When pipe network began to supply steam, air in the pipe network and cold condensate at first entered in the lower cavity of valve body 2 by filter screen 3 under differential pressure conditions, enter valve pocket along valve seat 4 again, discharged drain valve along pipeline; What and then enter valve pocket is condensed water in high temperature and steam, and a part of condensed water in high temperature and steam enter saturated vapour pressure type bellows 7 inside by the aperture 9 that rigidly fixes frame 8 upper ends, the rapid temperature-sensitive of filling medium expands and extends in the saturated vapour pressure type bellows 7, rigidly fix the frame 8 and the special construction of two ends groove flap 6 up and down based on W shape, saturated vapour pressure type bellows 7 can only be along axis shift, and drive flap 6 forms sealing with valve seat 4, close drain valve, condensed water in high temperature and steam are stopped in the pipe network; Along with condensed water in high temperature in pipeline and the valve pocket is constantly lowered the temperature, but when temperature is lower than the phase transition temperature of filling medium in the saturated vapour pressure type bellows 7, saturated vapour pressure type bellows 7 shrinks, drive flap 6 and break away from valve seat, drain valve is opened again, low-temperature condensate in pipeline and the valve pocket continues discharging, cold condensate in the saturated vapour pressure type bellows 7 internal rigid fixing frames 8 is also discharged by aperture under the effect of pressure reduction, when the temperature of condensed water in high temperature reaches capacity the phase transition temperature of filling medium in the steam pressure type bellows 7 in valve pocket, saturated vapour pressure type bellows 7 expands and extends, drive flap and valve seat and form sealing, drain valve is closed once more.
Claims (6)
1. saturated vapor pressure formula bellows Automatic steam trap Trap, comprise valve body (2), valve gap (11), valve seat (4), saturated vapour pressure type bellows (7), flap (6), filter screen (3), it is characterized in that: filter screen (3) is loaded in the entry end lower cavity of valve body (2), fixing with dirty screw plug of filter (1) and valve body (2), valve seat (4) and valve body (2) are by being threaded, and valve gap (11) is connected by bolt with valve body (2).
2. saturated vapor pressure formula bellows Automatic steam trap Trap according to claim 1, it is characterized in that: described saturated vapour pressure type bellows (7) inside is provided with one and rigidly fixes frame (8), (7) the one end roll weldings of saturated vapour pressure type bellows are outside rigidly fixing frame (8), and saturated vapour pressure type bellows (7) the other end roll welding is at flap (6) outward edge.
3. saturated vapor pressure formula bellows Automatic steam trap Trap according to claim 1 is characterized in that: the valve nozzle (5) of described valve seat (4) locates to be provided with an enlarging (b), and flap (6) adopts the plane to seal firmly with the sealing surface of valve seat (4).
4. saturated vapor pressure formula bellows Automatic steam trap Trap according to claim 1 is characterized in that: the shape of camber line groove in the middle of the both sides up and down of described flap (6) are.
5. the frame that rigidly fixes according to claim 2 is characterized in that: rigidly fix frame (8) and be W shape, the upper end has a circle aperture (9), and is fixing with the welding of fixed plate (10) outward edge.
6. fixed plate according to claim 5 is characterized in that: fixed plate has screw thread on (10), is connected and fixed by screw thread and valve gap (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201442511U CN201547484U (en) | 2009-11-06 | 2009-11-06 | Saturated steam pressure type bellows steam trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201442511U CN201547484U (en) | 2009-11-06 | 2009-11-06 | Saturated steam pressure type bellows steam trap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547484U true CN201547484U (en) | 2010-08-11 |
Family
ID=42602657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201442511U Expired - Fee Related CN201547484U (en) | 2009-11-06 | 2009-11-06 | Saturated steam pressure type bellows steam trap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2009
- 2009-11-06 CN CN2009201442511U patent/CN201547484U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107192511A (en) | A kind of leak tightness test device | |
| CN201547484U (en) | Saturated steam pressure type bellows steam trap | |
| CN2931957Y (en) | Scouring-free cut-off valve | |
| CN210662284U (en) | Liquid level visible steam trap | |
| US8522811B2 (en) | Auto flow steam trap | |
| CN206988460U (en) | A kind of Novel Brake Valve | |
| CN206656132U (en) | A kind of Novel orifice plate type steam trap | |
| CN207378262U (en) | A kind of compact-sized automatically cleaning shut-off valve | |
| CN203404594U (en) | Free type floating ball drain valve used for discharging condensate water | |
| CN204841090U (en) | Waterproof hammer impact's filter equipment | |
| CN206802401U (en) | Self-cleaning valve | |
| CN203363642U (en) | Thermal-insulation-type combined steam drain valve with spherical sealing stop valve body | |
| CN208012700U (en) | A kind of long window two-colour fluviograph of anti-leak | |
| CN206366205U (en) | A kind of urea flash evaporator gas phase rinse water arrangement | |
| CN210830565U (en) | Flange formula tap ball valve | |
| CN201066016Y (en) | Maintenance-free leakage-proof telescopic joint for hydropower | |
| CN215764565U (en) | Hot static type steam trap | |
| CN208364834U (en) | Self-adjustable gate valve | |
| CN215635019U (en) | Stop valve convenient to clearance | |
| CN209688527U (en) | One kind being used for hydrogen gas system self-draining arrangement | |
| CN212536721U (en) | Gate valve | |
| CN214464083U (en) | Water-draining gas-producing device for natural gas exploitation | |
| CN219082334U (en) | Ultra-large caliber multi-flap check valve | |
| CN220185913U (en) | High-pressure gate valve with pressure relief and explosion prevention functions | |
| CN215410809U (en) | Hydrophobic structure of steam pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20111106 |