CN209494941U - A kind of ultra supercritical is to idle discharge steam control valve - Google Patents
A kind of ultra supercritical is to idle discharge steam control valve Download PDFInfo
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- CN209494941U CN209494941U CN201822143781.6U CN201822143781U CN209494941U CN 209494941 U CN209494941 U CN 209494941U CN 201822143781 U CN201822143781 U CN 201822143781U CN 209494941 U CN209494941 U CN 209494941U
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Abstract
The utility model discloses a kind of ultra supercriticals to idle discharge steam control valve, including valve body, valve seat, level-one valve cage, second level valve cage, big valve core, small valve core, stuffing-box, valve rod, valve deck, arrival end, outlet end, first disk spring, nut, Anti-rotating grommet, the valve body is connect with valve deck, the valve seat is connect by sealing ring with valve body, the level-one valve cage, second level valve cage is all mounted in valve seat, the level-one valve cage is located at the outside of second level valve cage, the big valve core is mounted in second level valve cage, the small valve core is mounted in big valve core, one end of the valve rod is connect with small valve core, the other end of the valve rod runs through valve deck, this patent provide a kind of high temperature and pressure high-sealed to idle discharge steam control valve, the utility model high temperature resistant difference and High Pressure Difference are washed away, prolong the service life, the decompression of small guide vane multi-level throttle, do not occur Shake and concussion, avoid noise and leakage, and the health of environment and operating personnel is protected in energy-saving and emission-reduction.
Description
Technical field
The utility model relates to a kind of ultra supercriticals to idle discharge steam control valve.
Background technique
It is overcritical that the valve for driving regulation valve core component to make elevating movement by valve rod is referred to idle discharge steam control valve, it can
To adjust or be truncated fluid.Medium to idle discharge steam control valve is that high-temperature high-pressure overheat steam maximum temperature reaches 605 DEG C, pressure
For 27.5MPa, and outlet end is directly connected with atmosphere.Traditional is stop valve structure to idle discharge steam valve, and valve both ends are born most
The big temperature difference and pressure difference, open when can generate powerful thermal shock, to internals cause it is serious wash away, cause to idle discharge steam valve
Leakage, cause superheated steam directly to empty, cause energy loss, noise serious influence ring caused by addition small guide vane shakes
Border, and endanger the health status of operating personnel.
Utility model content
The purpose of the utility model is to overcome the deficiency in existing product, a kind of ultra supercritical is provided, idle discharge vapour is adjusted
Valve.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of ultra supercritical is including valve body, valve seat, level-one valve cage, second level valve cage, big valve core, small to idle discharge steam control valve
Spool, stuffing-box, valve rod, valve deck, arrival end, outlet end, the first disk spring, nut, Anti-rotating grommet, the valve body and valve deck
Connection, the valve seat are connect by sealing ring with valve body, and the level-one valve cage, second level valve cage are all mounted in valve seat, and described one
Grade valve cage is located at the outside of second level valve cage, and the big valve core is mounted in second level valve cage, and the small valve core is mounted in big valve core,
One end of the valve rod is connect with small valve core, and the other end of the valve rod runs through valve deck, and first disk spring, is prevented nut
Turn washer all to cover on valve rod, first disk spring, nut, Anti-rotating grommet successively arrange from top to bottom, the stuffing-box
The two sides of valve rod are fixed on, the level-one valve cage is equipped with several first through hole, and the arrival end is connected with first through hole, institute
Stating second level valve cage includes inner circular layer, outer circular layer, and the inner circular layer, outer circular layer are all provided with several slots, several second through-holes, institute
It states the second through-hole to be connected with first through hole, the big valve core is equipped with third through-hole, the third through-hole and the second through-hole phase
Connection, the outlet end is connected to valve seat.
Valve seat is equipped with concave stress relieving grooving.
Upward raised throttle structure is additionally provided on valve seat.
Several first through hole are in spiral distribution.
The utility model further includes upward angle faces, and the upward angle faces are between big valve core and valve seat.
The utility model further includes gland, the second disk spring, pogo barrel, fixing piece, stud, the stud and valve deck
It is threadedly coupled, the gland, the second disk spring, pogo barrel, fixing piece all cover on stud, the gland, the second dish
Spring, pogo barrel, fixing piece successively arrange from top to bottom, and the nut is threadedly coupled with stud.
Stuffing-box is between valve deck and valve rod.
Sealing ring is c-type grooved seal ring.
The beneficial effects of the utility model are as follows: 1, valve seat is connect by sealing ring with valve body, and sealing ring is c-type groove
Sealing ring, therefore the utility model is sealed by Fluid pressure, prevents valve deck bolt pretightening is too large or too small from causing
Impaired and leakage；2, valve seat has both sealing and spool guiding, and has upward raised throttle structure, avoids fluid scouring close
Cover；Meanwhile valve seat is equipped with concave stress relieving grooving, eliminates inlet port temperature change and generates influence of the thermal stress to sealing surface；
3, level-one valve cage is equipped with several first through hole, several first through hole are in spiral distribution, and second level valve cage includes inner circular layer, outer ring
Layer, and after level-one valve cage, second level valve cage and big valve core, valve seat combination, it is multiple continuous U runners by divided fluid stream, consumption is high
The kinetic energy of flow rates of fluid reduces arrival end high pressure step by step, avoids valve seat and spool high flow rate from washing away, prolongs the service life；
4, one end of valve rod is connect with small valve core, and the first disk spring, nut, Anti-rotating grommet all cover on valve rod, avoid valve rod by
Since stress concentration causes part impaired under executing agency's high thrust, the utility model does not use welding manner, but using the
The connection type of one disk spring, nut, Anti-rotating grommet, also avoids high temperature that fatigue of materials is caused to crack；5, big valve core is mounted on
In second level valve cage, the small valve core is mounted in big valve core, therefore total travel is oriented between large and small spool and second level valve cage, surely
It is qualitative good, avoid High Pressure Difference from shaking；6, big valve core is contacted with valve seat using the pre-compression force of the first disk spring rather than close
Envelope, small valve core are sealed using valve rod thrust, can there is a bit of reasonable dead zone in this way, i.e., after small valve core is opened in advance,
It has small flow to pass through, only the leakage rate of big valve core and valve seat, valve seat be washed away accordingly very faint；When aperture is more than dead zone
After trip segment, small guide vane is not present and has washed away, protected valve seat and small valve core, has extended the service life；7, the utility model also wraps
Upward angle faces are included, the upward angle faces are between big valve core and valve seat, therefore big valve core and valve seat contact position
It is designed to upward angle face contact, big valve core not will receive washing away for medium, and big valve core not will receive washing away for medium；8, it fills out
Material letter is designed as special seal structure, and design has pogo barrel on gland, carries out filler benefit using spring precommpression screen resilience
It repays, while the second disk spring is placed on outside stuffing-box, eliminates influence of the fluid to the second disk spring, avoid the second dish
Spring failure protects the health status of environment and operating personnel, therefore this patent provides a kind of high temperature and pressure high-sealed
To idle discharge steam control valve, the utility model high temperature resistant difference and High Pressure Difference are washed away, and are prolonged the service life, small guide vane multi-level throttle drop
Pressure does not occur to shake and shake, and avoids noise and leakage, and the health of environment and operating personnel is protected in energy-saving and emission-reduction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlargement structural representation at the position H of Fig. 1.
Specific embodiment
The technical solution of the utility model is described further with reference to the accompanying drawings of the specification:
As shown in Figure 1 and Figure 2, a kind of ultra supercritical is to idle discharge steam control valve, including valve body 1, valve seat 3, level-one valve cage 4, two
Grade valve cage 5, big valve core 6, small valve core 7, stuffing-box 12, valve rod 18, valve deck 11, arrival end 19, outlet end 20, the first disk spring
8, nut 9, Anti-rotating grommet 10, the valve body 1 are connect with valve deck 11, and the valve seat 3 is connect by sealing ring 2 with valve body 1, described
Level-one valve cage 4, second level valve cage 5 are all mounted in valve seat 3, and the level-one valve cage 4 is located at the outside of second level valve cage 5, the big valve
Core 6 is mounted in second level valve cage 5, and the small valve core 7 is mounted in big valve core 6, and one end of the valve rod 18 and small valve core 7 connect
It connects, the other end of the valve rod 18 runs through valve deck 11, and first disk spring 8, nut 9, Anti-rotating grommet 10 are all covered in valve rod
On 18, first disk spring 8, nut 9, Anti-rotating grommet 10 successively arrange from top to bottom, and the stuffing-box 12 is fixed on valve
The two sides of bar 18, the level-one valve cage 4 are equipped with several first through hole 41, and the arrival end 19 is connected with first through hole 41,
The second level valve cage 5 includes inner circular layer 51, outer circular layer 52, and the inner circular layer 51, outer circular layer 52 are all provided with several slots 53, several
A second through-hole 54, second through-hole 54 are connected with first through hole 41, and the big valve core 6 is equipped with third through-hole 61, institute
It states third through-hole 61 to be connected with the second through-hole 54, the outlet end 20 is connected to valve seat 3.The valve seat 3 is anti-equipped with concave
Split slot 32.Upward raised throttle structure 31 is additionally provided on valve seat 3.Several first through hole 41 are in spiral distribution.This is practical new
Type further includes upward angle faces 63, and the upward angle faces 63 are between big valve core 6 and valve seat 3.The utility model is also
Including gland 13, the second disk spring 14, pogo barrel 15, fixing piece 16, stud 17, the stud 17 connects with 11 screw thread of valve deck
It connects, the gland 13, the second disk spring 14, pogo barrel 15, fixing piece 16 all cover on stud 17, the gland 13,
Two disk springs 14, pogo barrel 15, fixing piece 16 successively arrange from top to bottom, and the nut 9 is threadedly coupled with stud 17.Institute
Stuffing-box 12 is stated between valve deck 11 and valve rod 18.The sealing ring 2 is 53 sealing ring 2 of c-type groove.
As shown in Figure 1 and Figure 2, the glide path of medium are as follows: flow to first through hole 41 from population end, then flow to second and lead to
Hole 54, then it is flow to third through-hole 61, then flow out from outlet end 20.
Small valve core lateral surface and the equal built-up welding cobalt base hard alloy of sealing surface, hardness high wear resistance, good seal performance, week in service life
Phase is long.
The advantages of this patent are as follows: 1, valve seat connect with valve body by sealing ring, and sealing ring is c-type grooved seal ring, because
This utility model is sealed by Fluid pressure, is damaged and is let out caused by preventing valve deck bolt pretightening too large or too small
Leakage；2, valve seat has both sealing and spool guiding, and has upward raised throttle structure, avoids fluid scouring sealing surface；Meanwhile
Valve seat is equipped with concave stress relieving grooving, eliminates inlet port temperature change and generates influence of the thermal stress to sealing surface；3, level-one valve cage
Equipped with several first through hole, several first through hole are in spiral distribution, and second level valve cage includes inner circular layer, outer circular layer, and level-one
It is multiple continuous U runners by divided fluid stream after valve cage, second level valve cage and big valve core, valve seat combination, consumption high flow rate fluid
Kinetic energy reduces arrival end high pressure step by step, avoids valve seat and spool high flow rate from washing away, prolongs the service life；4, the one of valve rod
End is connect with small valve core, and the first disk spring, nut, Anti-rotating grommet all cover on valve rod, avoid valve rod big by executing agency
Since stress concentration causes part impaired under thrust, the utility model does not use welding manner, but use the first disk spring,
The connection type of nut, Anti-rotating grommet, also avoids high temperature that fatigue of materials is caused to crack；5, big valve core is mounted in second level valve cage,
The small valve core is mounted in big valve core, therefore total travel is oriented between large and small spool and second level valve cage, and stability is good, avoids
High Pressure Difference concussion；6, when unlatching, valve rod first drives small valve core to move in big valve core, and then small valve core moves to big valve core
When interior top, small valve core can not move in big valve core, and small valve core and big valve core move upwardly together at this time.Big valve core and valve
Seat is contacted and non-tight using the pre-compression force of the first disk spring, and small valve core is sealed using valve rod thrust, in this way
There can be a bit of reasonable dead zone, i.e., after small valve core is opened in advance, have small flow and pass through, only big valve core and valve seat is let out
Leakage quantity accordingly washes away valve seat very faint；After aperture is more than dead zone trip segment, small guide vane is not present and has washed away,
Valve seat and small valve core are protected, the service life is extended；7, the utility model further includes upward angle faces, and the upward angle faces are located at
Between big valve core and valve seat, therefore big valve core and valve seat contact position are designed to upward angle face contact, and big valve core will not be by
To washing away for medium, big valve core not will receive washing away for medium；8, stuffing-box is designed as special seal structure, designs on gland
There is pogo barrel, carry out filler compensation using spring precommpression screen resilience, while the second disk spring is placed on outside stuffing-box,
Influence of the fluid to the second disk spring is eliminated, the second disk spring is avoided to fail, protects the healthy shape of environment and operating personnel
Condition.
It should be noted that listed above is only a kind of specific embodiment of the utility model.Obviously, the utility model
Above embodiments are not limited to, it can also be there are many deforming, in short, those skilled in the art can disclose from the utility model
Content all deformations for directly exporting or associate, be considered as the protection scope of the utility model.
Claims (8)
1. a kind of ultra supercritical is to idle discharge steam control valve, which is characterized in that including valve body (1), valve seat (3), level-one valve cage (4),
Second level valve cage (5), big valve core (6), small valve core (7), stuffing-box (12), valve rod (18), valve deck (11), arrival end (19), outlet
(20), the first disk spring (8), nut (9), Anti-rotating grommet (10) are held, the valve body (1) connect with valve deck (11), the valve
Seat (3) is connect by sealing ring (2) with valve body (1), and the level-one valve cage (4), second level valve cage (5) are all mounted in valve seat (3),
The level-one valve cage (4) is located at the outside of second level valve cage (5), and the big valve core (6) is mounted in second level valve cage (5), described small
Spool (7) is mounted in big valve core (6), and one end of the valve rod (18) is connect with small valve core (7), the valve rod (18) it is another
Valve deck (11) are run through at end, and first disk spring (8), nut (9), Anti-rotating grommet (10) all cover on valve rod (18), described
First disk spring (8), nut (9), Anti-rotating grommet (10) successively arrange from top to bottom, and the stuffing-box (12) is fixed on valve rod
(18) two sides, the level-one valve cage (4) are equipped with several first through hole (41), the arrival end (19) and first through hole (41)
It is connected, the second level valve cage (5) includes inner circular layer (51), outer circular layer (52), and the inner circular layer (51), outer circular layer (52) are all opened
There are several slots (53), several second through-holes (54), second through-hole (54) is connected with first through hole (41), described big
Spool (6) is equipped with third through-hole (61), and the third through-hole (61) is connected with the second through-hole (54), the outlet end (20)
It is connected to valve seat (3).
2. a kind of ultra supercritical is to idle discharge steam control valve according to claim 1, which is characterized in that set on the valve seat (3)
There are concave stress relieving grooving (32).
3. a kind of ultra supercritical is to idle discharge steam control valve according to claim 1, which is characterized in that on the valve seat (3) also
Equipped with upward raised throttle structure (31).
4. a kind of ultra supercritical is to idle discharge steam control valve according to claim 1, which is characterized in that described several are first logical
Hole (41) is in spiral distribution.
5. a kind of ultra supercritical is to idle discharge steam control valve according to claim 1, which is characterized in that further include upward angle
Face (63), the upward angle faces (63) are located between big valve core (6) and valve seat (3).
6. a kind of ultra supercritical is to idle discharge steam control valve according to claim 1, which is characterized in that further include gland (13),
Second disk spring (14), pogo barrel (15), fixing piece (16), stud (17), the stud (17) and valve deck (11) screw thread
Connection, the gland (13), the second disk spring (14), pogo barrel (15), fixing piece (16) all cover on stud (17), institute
It states gland (13), the second disk spring (14), pogo barrel (15), fixing piece (16) successively to arrange from top to bottom, the nut
(9) it is threadedly coupled with stud (17).
7. a kind of ultra supercritical is to idle discharge steam control valve according to claim 1, which is characterized in that stuffing-box (12) position
Between valve deck (11) and valve rod (18).
8. a kind of ultra supercritical is to idle discharge steam control valve according to claim 1, which is characterized in that the sealing ring (2) is C
Type groove (53) sealing ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143781.6U CN209494941U (en) | 2018-12-20 | 2018-12-20 | A kind of ultra supercritical is to idle discharge steam control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143781.6U CN209494941U (en) | 2018-12-20 | 2018-12-20 | A kind of ultra supercritical is to idle discharge steam control valve |
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| Publication Number | Publication Date |
|---|---|
| CN209494941U true CN209494941U (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822143781.6U Active CN209494941U (en) | 2018-12-20 | 2018-12-20 | A kind of ultra supercritical is to idle discharge steam control valve |
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| CN (1) | CN209494941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110533A1 (en) * | 2020-11-26 | 2022-06-02 | 皑壹智能汽车科技(嘉兴)有限公司 | Sealing structure of valve body, valve and cflvv valve |
| WO2022110532A1 (en) * | 2020-11-26 | 2022-06-02 | 皑壹智能汽车科技(嘉兴)有限公司 | Valve, multifunctional combination valve, and cflvv valve |
-
2018
- 2018-12-20 CN CN201822143781.6U patent/CN209494941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110533A1 (en) * | 2020-11-26 | 2022-06-02 | 皑壹智能汽车科技(嘉兴)有限公司 | Sealing structure of valve body, valve and cflvv valve |
| WO2022110532A1 (en) * | 2020-11-26 | 2022-06-02 | 皑壹智能汽车科技(嘉兴)有限公司 | Valve, multifunctional combination valve, and cflvv valve |
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