CN2744901Y - Heavy pressure by-pass spraying water control valve - Google Patents
Heavy pressure by-pass spraying water control valve Download PDFInfo
- Publication number
- CN2744901Y CN2744901Y CN 200420081870 CN200420081870U CN2744901Y CN 2744901 Y CN2744901 Y CN 2744901Y CN 200420081870 CN200420081870 CN 200420081870 CN 200420081870 U CN200420081870 U CN 200420081870U CN 2744901 Y CN2744901 Y CN 2744901Y
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- China
- Prior art keywords
- valve
- sleeve
- valve body
- cover
- valve seat
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- Expired - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model discloses a high-pressure bypass water spray regulating valve which comprises a valve cover, a valve rod, a valve seat, an outlet, an inlet, a valve core and a valve body. The utility model is characterized in that a liquid flow regulating mechanism is arranged in the valve body, and the liquid flow regulating mechanism comprises an orifice sleeve, a flow equalization cover and the valve core which is integrated with the valve rod into integration; the valve core is a structure with a plurality of disk cylinders, and the uppermost disk of the valve core is matched with an inclined plane of the valve seat; the valve body is provided with the valve cover, and a guiding sleeve is arranged between the valve cover and the valve rod; a metal sealing ring is arranged between the lower part of the valve cover and the valve body, and press plates for the valve cover are arranged above the metal sealing ring. The utility model has the advantages that because the guiding sleeve is additionally arranged in the valve body, the valve rod is always positioned in a vertical state; the orifice sleeve adopts a double sleeve and small hole structure, the valve core adopts a multiple disk cylinder connecting structure, so that the quantity of cavitation erosion for throttling parts in operation is greatly lightened, the noise is greatly reduced, and the service life of the regulating valve can be prolonged; because of the valve seat with a detachable structure, the detachment, the examine and repair are convenient; the sealing surface of the valve seat adopts the inclined plane structure, therefore, the sealing surface of the regulating valve has very good sealing effect.
Description
Technical field
Model utility relates to a kind of high pressure turbine by water jet control valve, it is the visual plant in industry heat power equipments such as electric power, oil, chemical industry or system automation field, it can be according to being transferred object issue its temperature signal, adjusts injection flow rate automatically and regulate the medium temperature parameter and be controlled within the scope of system requirements.
Background technique
When heat power equipment when starting or breaking down, or will be reduced to higher vapor (steam) temperature the temperature value that needs the time, it can be according to actuating signal or trouble signal, or be adjusted medium and issue its temperature signal, automatically open or close the high pressure turbine by water jet control valve and regulate injection flow rate, make and transferred the medium temperature parameter to be controlled within the security of system scope, or be controlled within system's service condition parameter area.It is widely used on the bypath system or Desuperheating and decompressing device for steam of steam turbine.High pressure turbine by water jet control valve operating conditions is very poor, moves under throttle mostly, even can cavitation phenomenons take place and make the adjusting function variation, further produces leakage phenomenon, loses the effect that water spray is regulated, and makes systematic parameter can't guarantee normal operation.This shows that manufacture and design that cavitation is little, noise is low, simple in structure, the high pressure turbine by water jet control valve of reliable performance is very important.The present high pressure turbine by water jet control valve that uses is owing to structure and material therefor is different, the performance difference of product is very big, and subject matter is: do not reach the purpose of multistage step-down, make the very easily cavitation damage of steam partial vaporization sealing surface, can't guarantee under normal parameter, to move, waste energy.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming of existing high pressure turbine by water jet control valve, and the high pressure turbine by water jet control valve that a kind of anti-cavitation, noise are low, reach multistage step-down and long service life is provided.
The technical solution of the utility model is: a kind of high pressure turbine by water jet control valve, it comprises: valve gap, valve rod, valve seat, outlet, import, spool, valve body, it is characterized in that, liquid stream controlling mechanism places in the valve body, liquid stream controlling mechanism comprises the orifice sleeve that places between valve body bottom and the valve seat, places the current-sharing cover between valve seat and the valve gap and places in current-sharing cover, valve seat, the orifice sleeve from top to bottom and valve rod all-in-one-piece spool; Spool is to be formed by connecting by a plurality of dish posts, and the dish of spool the topmost part cooperates with the valve seat inclined-plane; Valve body is equipped with valve gap, is equipped with pilot sleeve between valve gap and the valve rod; Be equipped with metal o-ring between bonnet lower and the valve body, the valve gap pressing plate places above the metal o-ring.
Described to place the orifice sleeve between valve body bottom and the valve seat be the double-sleeve structure of one, is equipped with a plurality of apertures respectively on inner sleeve and the outer sleeve face.
The utility model compared with the prior art, employing has two sleeve orifice sleeves of porous, carry out the step-down first time, and the spool through being a plurality of dish posts is realized the multiple tracks step-down again, through the step-down of reallocating of current-sharing cover, High Pressure Difference liquid stream is tended to balance rapidly again, reach the desired parameters requirement of operational system, can realize anti-cavitation, low noise, improve the working life of valve greatly.
Description of drawings
Fig. 1 is a high pressure turbine by water jet control valve structural representation;
Fig. 2 is the orifice sleeve structural representation;
Fig. 3 is an orifice sleeve outer sleeve face perforate schematic representation;
Fig. 4 is an orifice sleeve inner sleeve face perforate schematic representation.
Embodiment
A kind of high pressure turbine by water jet control valve, by shown in Figure 1, it comprises: valve gap 1, valve rod 2, valve seat 4, outlet 6, import 7, spool 8, valve body 9, be characterized in, liquid stream controlling mechanism places in the valve body 9, liquid stream controlling mechanism comprises the orifice sleeve 5 that places between valve body 9 bottoms and the valve seat 4, places the current-sharing cover 10 between valve seat 4 and the valve gap 1 and places in current-sharing cover 10, valve seat 4, the orifice sleeve 5 and valve rod 2 all-in-one-piece spools 8, and spool 8 is to be formed by connecting by a plurality of dish posts; The dish of spool 8 the topmost parts cooperates with valve seat 4 inclined-planes; Valve body 9 is equipped with valve gap 1, is equipped with pilot sleeve 3 between valve gap 1 and the valve rod 2; Be equipped with metal o-ring 11 between valve gap 1 bottom and the valve body 9, valve gap pressing plate 12 places above the metal o-ring 11.The import 7 and the outlet 6 of described high pressure turbine by water jet control valve are zigzag
By shown in Figure 2, described orifice sleeve 5 is a double-sleeve structure, and inner sleeve 13 and outer sleeve 14 are formed, and are equipped with a plurality of apertures 15 and 16 on the inner and outer sleeves face respectively.
By Fig. 3, shown in Figure 4, the aperture 16 that to have 36 diameters on outer sleeve 14 be 4mm, the aperture 15 that to have 155 diameters on inner sleeve 13 be 1.5mm.Increase pilot sleeve 3 in the valve body 9, make valve rod 2 be in plumbness all the time; The orifice sleeve 5 of control cooling water adopts two sleeve small structures, and the spool 8 that changes flow area adopts by a plurality of dish posts all-in-one-piece structure that is connected, and the throttling element cavitation amount that is in operation is greatly alleviated, and noise greatly reduces, and has prolonged the working life of modulating valve; Valve seat 4 adopts demountable structure,
Impaired when sealing surface of seat, as long as pull down valve seat, with the valve seat reparation or change new valve seat, can use; Valve seat 4 is designed to ramp structure with spool 8 sealing surfaces, makes the sealing of adjusting the door sealing face reach very good effect.
Claims (2)
1, a kind of high pressure turbine by water jet control valve, it comprises: valve gap (1), valve rod (2), valve seat (4), outlet (6), import (7), spool (8), valve body (9), it is characterized in that, liquid stream controlling mechanism places in the valve body (9), liquid stream controlling mechanism comprises the orifice sleeve (5) that places between valve body (9) bottom and the valve seat (4), places the current-sharing cover (10) between valve seat (4) and the valve gap (1) and places in current-sharing cover (10), valve seat (4), the orifice sleeve (5) from top to bottom and valve rod (2) all-in-one-piece spool (8); Spool (8) is formed by connecting by a plurality of dish posts, and the dish of spool (8) the topmost part cooperates with valve seat (4) inclined-plane; Valve body (9) is equipped with valve gap (1), is equipped with pilot sleeve (3) between valve gap (1) and the valve rod (2); Be equipped with metal o-ring (11) between valve gap (1) bottom and the valve body (9), valve gap pressing plate (12) places above the metal o-ring (11).
2, high pressure turbine by water jet control valve according to claim 1 is characterized in that, described orifice sleeve (5) is a double-sleeve structure, and it is made up of inner sleeve (13) and outer sleeve (14), is equipped with a plurality of apertures (15) and (16) on the inner and outer sleeves face respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081870 CN2744901Y (en) | 2004-08-16 | 2004-08-16 | Heavy pressure by-pass spraying water control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081870 CN2744901Y (en) | 2004-08-16 | 2004-08-16 | Heavy pressure by-pass spraying water control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744901Y true CN2744901Y (en) | 2005-12-07 |
Family
ID=35579682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081870 Expired - Fee Related CN2744901Y (en) | 2004-08-16 | 2004-08-16 | Heavy pressure by-pass spraying water control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744901Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742693A (en) * | 2014-01-23 | 2014-04-23 | 章华 | High-pressure-difference adjusting valve structure |
| CN105042176A (en) * | 2015-06-25 | 2015-11-11 | 浙江德卡控制阀仪表有限公司 | Pressure and noise reduction regulating valve |
| CN109163135A (en) * | 2018-11-07 | 2019-01-08 | 吴忠中创自控阀有限公司 | A kind of pair of idle discharge steam control valve |
-
2004
- 2004-08-16 CN CN 200420081870 patent/CN2744901Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742693A (en) * | 2014-01-23 | 2014-04-23 | 章华 | High-pressure-difference adjusting valve structure |
| CN103742693B (en) * | 2014-01-23 | 2017-02-08 | 章华 | High-pressure-difference adjusting valve structure |
| CN105042176A (en) * | 2015-06-25 | 2015-11-11 | 浙江德卡控制阀仪表有限公司 | Pressure and noise reduction regulating valve |
| CN109163135A (en) * | 2018-11-07 | 2019-01-08 | 吴忠中创自控阀有限公司 | A kind of pair of idle discharge steam control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |