CN104653807A - Residual oil separating ball valve for delaying coking - Google Patents
Residual oil separating ball valve for delaying coking Download PDFInfo
- Publication number
- CN104653807A CN104653807A CN201510071122.4A CN201510071122A CN104653807A CN 104653807 A CN104653807 A CN 104653807A CN 201510071122 A CN201510071122 A CN 201510071122A CN 104653807 A CN104653807 A CN 104653807A
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- Prior art keywords
- valve
- ball
- barrel
- residual oil
- bellows springs
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
- F16K41/026—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles for rotating valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to a residual oil separating ball valve for delaying coking. The residual oil separating ball valve comprises a right valve body, a packing box, plane bearings, a left valve body, an integral valve ball, first valve seats, first bellows springs, second valve seats and second bellows springs and packing, wherein the right valve body is provided with a right valve cavity; the left valve body is provided with a left valve cavity; the packing box is fixed in the right valve body; the packing is arranged in the packing box; the plane bearings are arranged below the packing; the left valve body is fixed on the right valve body; the first valve seats and the first bellow springs are arranged in the right valve cavity of the right valve body; the second valve seats and the second bellows springs are arranged in the left valve cavity of the left valve body; the integral valve ball is arranged in the left valve cavity and the right valve cavity. According to the residual oil separating ball valve disclosed by the invention, the valve seats on the upper sides and the lower sides of the valve cavities are symmetrically arranged; seven steam blowing openings are formed in the packing box, so that the blowing dead zones are eliminated to the maximum extent, the phenomenon that easily-coked media stay in the valve cavities or enter cavities of the bellows springs in the opening/closing process of the valve cavities is prevented, and the condition that the leakage is caused due to the fact that the media enter the packing box and the sealing effect of the packing is reduced is prevented.
Description
Technical field
The present invention relates to a kind of ball valve, the present invention especially relates to a kind of delayed coking residual oil and cuts off ball valve.
Background technique
Petroleum resources play vital effect to socioeconomic development; and as a kind of non-renewable resources; oil is faced with more and more urgent supply crisis, and update method and technique, raising are one of major programme of this problem of reply at present to the utilization ratio of petroleum resources.The crude oil refinery being in leading position in whole petrochemical industry chain seems particularly crucial to the utilization ratio improving petroleum resources, but, more advanced meticulous refinery technology improves output and environmental protection standard, but also to high temperature resistant, the high pressure ability of device with propose rigors working life.
In modern oil refining apparatus, a stove two tower delay coking process is generally used.The residual oil installed in resid feed pipeline at the bottom of tower cuts off ball valve as " throat " of package unit, directly affects manufacturing efficiency and device safety work, the working condition also very severe simultaneously residing for it:
1, easily coking.The medium flowing through pipeline is residual oil, the gas mixture of coking heater outlet, containing a large amount of coke breeze solid particles, be very easy to coking in valve cavity and ball surface, cause valve event difficulty, valve pocket even blocks by monoblock solid after coking completely, makes valve thoroughly cannot action;
2, temperature is high.Ducted residual oil normal temperature is 500 DEG C, reaches as high as 510 DEG C, proposes huge test to the resistance to high temperature of valve;
3, the temperature difference is large.Be above-mentioned residual oil, gas mixture before valve, be the condensed water of 40 ~ 50 DEG C after valve, the front and back temperature difference is up to 450 DEG C, and during valve each switch motion, trim all need bear the so high alternation temperature difference instantaneously;
4, act frequently.Residual oil cuts off ball valve need carry out 1 ~ 2 switch motion every day, and this proposes high requirement to the Reliability of Microprocessor of valve;
5, inflammable and explosive.Residual oil, gas mixture belong to inflammable and explosive medium, will cause security risk difficult to the appraisal if leaked outside.
Comprehensive above-mentioned operating mode, delayed coking unit all proposes very harsh requirement to the anti-coking ability of valve, high temperature resistant (poor) performance, Reliability of Microprocessor, sealability, working life.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of anti-coking, high temperature resistant, reliable in action, sealability superior, long-life delayed coking residual oil partition ball valve are provided.
According to technological scheme provided by the invention, described delayed coking residual oil cuts off ball valve, it comprises right valve barrel, stuffing box, plane bearing, left valve barrel, integrated type valve ball, first valve seat, first bellows springs, second valve seat, second bellows springs and filler, right valve barrel has right valve chamber, left valve barrel has left valve pocket, stuffing box is had at right valve barrel internal fixtion, filler is provided with in stuffing box, plane bearing is provided with below filler, right valve barrel is fixed with left valve barrel, the first valve seat and the first bellows springs is provided with in the right valve chamber of right valve barrel, the second valve seat and the second bellows springs is provided with in the left valve pocket of left valve barrel, integrated type valve ball is provided with in left valve pocket and right valve chamber, integrated type valve ball coordinates with the first valve seat, integrated type valve ball coordinates with the second valve seat.
The right valve barrel of corresponding right valve chamber upper position is provided with uuper valve chamber blow valve port, the right valve barrel of corresponding right valve chamber inner side and outer fix is provided with right valve seat blow valve port, the right valve barrel of corresponding stuffing box position is provided with stuffing box blow valve port.
Described right valve seat blow valve port inside is divided into twice pore, and this twice pore correspondence purges the cavity of the first bellows springs and the cavity of the first valve seat.
The left valve barrel of the left valve pocket lower position of correspondence is provided with lower valve chamber blow valve port, the left valve barrel of correspondence left valve pocket inner side and outer fix is provided with left valve seat blow valve port.
Described left valve seat blow valve port inside is divided into twice pore, and this twice pore correspondence purges the cavity of the second bellows springs and the cavity of the second valve seat.
Described integrated valve bag draws together valve ball, valve rod and limited step; Be connected with limited step in the tip portion of described valve ball, limited step is connected with valve rod, and described plane bearing is between limited step and filler.
The back side of described first valve seat adopts the first bellows springs as seal element and elastic compensation element; The back side of described second valve seat adopts the second bellows springs as seal element and elastic compensation element.
Described left valve barrel and right valve barrel cooperation place adopt thermal expansion coefficient and the on all four metal ring pad of valve body material as seal element.
The present invention has the following advantages:
1, valve pocket up and down, both sides valve seat symmetrical position, stuffing box place arrange 7 steam blowing mouths altogether, eliminate to greatest extent and purge dead band, utilize the steam that pressure is 0.9 ~ 1MPa, temperature is 230 ~ 250 DEG C to stop easy coking medium be trapped in valve pocket in valve switch process or enter bellows springs cavity, and stop medium to enter stuffing box to reduce packing seal effect and cause leaking outside;
2, valve ball and valve rod adopt overall structure, and rigidity is better, and valve ball can not in disalignment under pressure medium, avoid split type valve ball, stem structure under high pressure operating mode side-play amount greatly, easily stuck problem;
3, integrated type valve ball is installed from inside to outside from valve pocket, the inherently anti-design that flies out, and between the limited step and stuffing box of integrated type valve ball, be provided with two panels plane bearing, integrated type valve ball and stuffing box bottom plane stuck risk when avoiding valve action with pressure.
4, the bellows springs that both sides valve seat back side employing fire-resistant high-resiliency alloy Inconel X-750 is compressing is as seal element and elastic compensation element, the valve ball that balance Yin Gaowen and high temperature change and produce and valve seat distortion, and reduce the risk that common spring lost efficacy because of coking and blocking, ensure the sealability of valve under harsh operating mode and Reliability of Microprocessor;
5, sealing surface of seat processing is also accurately ground to and fits completely with sphere, plays unique doctor effect, struck off by the medium of coking in ball surface in valve event process while meeting sealability;
6, all position all polishing treatments after fine finishing with medium contact such as runner and body cavity, surface roughness is greater than Ra0.8, reduces the adhesion needed for medium bonding;
7, left valve barrel and right valve barrel cooperation place adopt thermal expansion coefficient and the on all four metal ring pad of valve body material as seal element, and compress with high-strength screw rod, nut, avoid because temperature variation causes sealing between valve body to loosen, and then generation danger medium leaks outside.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is A-A sectional view of Fig. 1.
Fig. 3 is B-B sectional view of Fig. 2.
Fig. 4 is the enlarged view of C part in Fig. 3.
Fig. 5 is the plan view of the first bellows springs and the second bellows springs in the present invention.
Fig. 6 is the stereogram of the first bellows springs and the second bellows springs in the present invention.
Fig. 7 is the plan view of integrated type valve ball in the present invention.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
This delayed coking residual oil cuts off ball valve, it comprises right valve barrel 1, stuffing box 2, plane bearing 4, left valve barrel 5, integrated type valve ball 6, first valve seat 7.1, first bellows springs 8.1, second valve seat 7.2, second bellows springs 8.2 and filler 11, right valve barrel 1 has right valve chamber, left valve barrel 5 has left valve pocket, stuffing box 2 is had at right valve barrel 1 internal fixtion, filler 11 is provided with in stuffing box 2, plane bearing 4 is provided with below filler 11, right valve barrel 1 is fixed with left valve barrel 5, the first valve seat 7.1 and the first bellows springs 8.1 is provided with in the right valve chamber of right valve barrel 1, the second valve seat 7.2 and the second bellows springs 8.2 is provided with in the left valve pocket of left valve barrel 5, integrated type valve ball 6 is provided with in left valve pocket and right valve chamber, integrated type valve ball 6 coordinates with the first valve seat 7.1, integrated type valve ball 6 coordinates with the second valve seat 7.2.
The right valve barrel 1 of corresponding right valve chamber upper position and lower position is provided with uuper valve chamber blow valve port 1a, the right valve barrel 1 of corresponding right valve chamber inner side and outer fix is provided with right valve seat blow valve port 1b, the right valve barrel 1 of corresponding stuffing box 2 position is provided with stuffing box blow valve port 1c.
Described right valve seat blow valve port 1b inside is divided into twice pore, and this twice pore correspondence purges the cavity of the first bellows springs and the cavity of the first valve seat.
The left valve barrel 5 of the left valve pocket upper position of correspondence and lower position is provided with lower valve chamber blow valve port 5a, the left valve barrel 5 of correspondence left valve pocket inner side and outer fix is provided with left valve seat blow valve port 5b.
Described left valve seat blow valve port 5b inside is divided into twice pore, and this twice pore correspondence purges the cavity of the second bellows springs 8.2 and the cavity of the second valve seat 7.2.
Described integrated type valve ball 6 comprises valve ball 6a, valve rod 6b and limited step 6c; Be connected with limited step 6c in the tip portion of described valve ball 6a, limited step 6c is connected with valve rod 6b, and described plane bearing 4 is between limited step 6c and filler 11.
The back side of described first valve seat 7.1 adopts the first bellows springs 8.1 as seal element and elastic compensation element; The back side of described second valve seat 7.2 adopts the second bellows springs 8.2 as seal element and elastic compensation element.
Described left valve barrel 5 adopts thermal expansion coefficient and the on all four metal ring pad of valve body material as seal element with right valve barrel 1 cooperation place.
In the present invention, the valve base sealing structure of integrated type valve ball 6 left and right sides is identical, first valve seat 7.1 is arranged in right valve barrel 1 together with the first bellows springs 8.1, first bellows springs 8.1 is arranged on the back side of the first valve seat 7.1, second bellows springs 8.2 is arranged in left valve barrel 5 together with the second valve seat 7.2, second bellows springs 8.2 is arranged on the back side of the second valve seat 7.2, integrated type valve ball 6 is arranged in right valve barrel 1 from valve pocket from inside to outside, two panels plane bearing 4 is arranged on the limited step 6c of integrated type valve ball 6 from top, stuffing box 2 is arranged in right valve barrel 1 from top, filler 11 to be arranged on from top in stuffing box 2 and to match with valve rod 6b, metal ring pad 3 is arranged on left valve barrel 5 with in the groove of right valve barrel 1 cooperation place, left valve barrel 5 is pressed on right valve barrel 1 by high-strength screw rod 9 and high strength nut 10.
Working principle of the present invention is as follows:
The present invention is owing to being provided with uuper valve chamber blow valve port 1a, right valve seat blow valve port 1b, stuffing box blow valve port 1c, lower valve chamber blow valve port 5a and left valve seat blow valve port 5b totally 7 steam blowing mouths, eliminate to greatest extent and purge dead band, utilize the steam that pressure is 0.9 ~ 1MPa, temperature is 230 ~ 250 DEG C stop easy coking medium to be trapped in valve pocket in valve switch process or enter the cavity of the first bellows springs 8.1 and the second bellows springs 8.2, and stop medium to enter stuffing box 2 to reduce filler 11 sealing effect and cause leaking outside; Valve ball 6a and valve rod 6b adopts overall structure, and rigidity is better, and integrated type valve ball 6 can not in disalignment under pressure medium, avoid split type valve ball, stem structure under high pressure operating mode side-play amount greatly, easily stuck problem; Integrated type valve ball 6 is installed from inside to outside from valve pocket, the inherently anti-design that flies out, and between the limited step 6c and stuffing box 2 of integrated type valve ball 6, be provided with two panels plane bearing 4, the risk that when avoiding valve action with pressure, integrated type valve ball 6 is stuck with stuffing box 2 bottom plane; The first bellows springs 8.1 that the back side of the first valve seat 7.1 and the second valve seat 7.2 adopts fire-resistant high-resiliency alloy Inconel X-750 compressing and the second bellows springs 8.2 are as seal element and elastic compensation element, the 6a valve ball that balance Yin Gaowen and high temperature change and produce and valve seat 7 are out of shape, and reduce the risk that common spring lost efficacy because of coking and blocking, ensure the sealability of valve under harsh operating mode and Reliability of Microprocessor; The processing of valve seat 7 sealing surface is also accurately ground to and fits completely with valve ball 6a, plays unique doctor effect, struck off by the medium of coking on valve ball 6a surface in valve event process while meeting sealability; All position all polishing treatments after fine finishing with medium contact such as runner and body cavity, surface roughness is greater than Ra0.8, reduces the adhesion needed for medium bonding; Left valve barrel 5 and right valve barrel 2 cooperation place adopt thermal expansion coefficient and the on all four metal ring pad 3 of valve body material as seal element, and compress with high-strength screw rod 9, high strength nut 10, avoid because temperature variation causes sealing between valve body to loosen, and then generation danger medium leaks outside.
Claims (8)
1. a delayed coking residual oil cuts off ball valve, it comprises right valve barrel (1), stuffing box (2), plane bearing (4), left valve barrel (5), integrated type valve ball (6), first valve seat (7.1), first bellows springs (8.1), second valve seat (7.2), second bellows springs (8.2) and filler (11), right valve barrel (1) has right valve chamber, left valve barrel (5) has left valve pocket, it is characterized in that: have stuffing box (2) at right valve barrel (1) internal fixtion, filler (11) is provided with in stuffing box (2), plane bearing (4) is provided with in filler (11) below, right valve barrel (1) is fixed with left valve barrel (5), the first valve seat (7.1) and the first bellows springs (8.1) is provided with in the right valve chamber of right valve barrel (1), the second valve seat (7.2) and the second bellows springs (8.2) is provided with in the left valve pocket of left valve barrel (5), integrated type valve ball (6) is provided with in left valve pocket and right valve chamber, integrated type valve ball (6) coordinates with the first valve seat (7.1), integrated type valve ball (6) coordinates with the second valve seat (7.2).
2. delayed coking residual oil as claimed in claim 1 cuts off ball valve, it is characterized in that: on corresponding right valve chamber upper position right valve barrel (1), be provided with uuper valve chamber blow valve port (1a), the right valve barrel (1) of corresponding right valve chamber inner side and outer fix is provided with right valve seat blow valve port (1b), the right valve barrel (1) of corresponding stuffing box (2) position is provided with stuffing box blow valve port (1c).
3. delayed coking residual oil as claimed in claim 2 cuts off ball valve, it is characterized in that: described right valve seat blow valve port (1b) inside is divided into twice pore, and this twice pore correspondence purges the cavity of the first bellows springs (8.1) and the cavity of the first valve seat (7.1).
4. delayed coking residual oil as claimed in claim 1 cuts off ball valve, it is characterized in that: on the left valve barrel (5) of the left valve pocket lower position of correspondence, be provided with lower valve chamber blow valve port (5a), the left valve barrel (5) of correspondence left valve pocket inner side and outer fix is provided with left valve seat blow valve port (5b).
5. delayed coking residual oil as claimed in claim 4 cuts off ball valve, it is characterized in that: described left valve seat blow valve port (5b) inside is divided into twice pore, and this twice pore correspondence purges the cavity of the second bellows springs (8.2) and the cavity of the second valve seat (7.2).
6. delayed coking residual oil as claimed in claim 1 cuts off ball valve, it is characterized in that: described integrated type valve ball (6) comprises valve ball (6a), valve rod (6b) and limited step (6c); Be connected with limited step (6c) in the tip portion of described valve ball (6a), limited step (6c) is connected with valve rod (6b), and described plane bearing (4) is positioned between limited step (6c) and filler (11).
7. delayed coking residual oil as claimed in claim 1 cuts off ball valve, it is characterized in that: the back side of described first valve seat (7.1) adopts the first bellows springs (8.1) as seal element and elastic compensation element; The back side of described second valve seat (7.2) adopts the second bellows springs (8.2) as seal element and elastic compensation element.
8. delayed coking residual oil as claimed in claim 1 cuts off ball valve, it is characterized in that: described left valve barrel (5) and right valve barrel (1) cooperation place adopt thermal expansion coefficient and the on all four metal ring pad of valve body material as seal element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071122.4A CN104653807A (en) | 2015-02-10 | 2015-02-10 | Residual oil separating ball valve for delaying coking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071122.4A CN104653807A (en) | 2015-02-10 | 2015-02-10 | Residual oil separating ball valve for delaying coking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104653807A true CN104653807A (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510071122.4A Pending CN104653807A (en) | 2015-02-10 | 2015-02-10 | Residual oil separating ball valve for delaying coking |
Country Status (1)
| Country | Link |
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| CN (1) | CN104653807A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439161A (en) * | 2016-11-21 | 2017-02-22 | 扬中市阀门厂有限公司 | High-stability bonnet component of rotary distribution valve |
| CN107975615A (en) * | 2017-11-22 | 2018-05-01 | 西诺威阀门控制（苏州）有限公司 | Floating ball valve |
| CN109764158A (en) * | 2019-03-14 | 2019-05-17 | 无锡智能自控工程股份有限公司 | High temperature resistant type four way ball valve |
| CN114658889A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | High-temperature ball valve series connection sealing structure and use method thereof |
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| CN103603964A (en) * | 2013-11-20 | 2014-02-26 | 无锡智能自控工程股份有限公司 | Online-maintainable butt-welding high-temperature high-pressure rapid cut-off steam ball valve |
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| CN203686209U (en) * | 2013-11-20 | 2014-07-02 | 无锡智能自控工程股份有限公司 | High-pressure balance type forged switching ball valve with self sealing of fillers |
| CN203797024U (en) * | 2014-04-02 | 2014-08-27 | 浙江欧斯特泵阀有限公司 | Split corrugated pipe ball valve |
| CN204533628U (en) * | 2015-02-10 | 2015-08-05 | 无锡智能自控工程股份有限公司 | Delayed coking residual oil cuts off ball valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439161A (en) * | 2016-11-21 | 2017-02-22 | 扬中市阀门厂有限公司 | High-stability bonnet component of rotary distribution valve |
| CN106439161B (en) * | 2016-11-21 | 2023-12-05 | 扬中市阀门厂有限公司 | High-stability valve cover member of rotary distribution valve |
| CN107975615A (en) * | 2017-11-22 | 2018-05-01 | 西诺威阀门控制（苏州）有限公司 | Floating ball valve |
| CN109764158A (en) * | 2019-03-14 | 2019-05-17 | 无锡智能自控工程股份有限公司 | High temperature resistant type four way ball valve |
| CN109764158B (en) * | 2019-03-14 | 2024-01-09 | 无锡智能自控工程股份有限公司 | High temperature resistant type four-way ball valve |
| CN114658889A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | High-temperature ball valve series connection sealing structure and use method thereof |
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Application publication date: 20150527 |