CN2529033Y - Precharge pressure regulating decoke control valve - Google Patents
Precharge pressure regulating decoke control valve Download PDFInfo
- Publication number
- CN2529033Y CN2529033Y CN02212777U CN02212777U CN2529033Y CN 2529033 Y CN2529033 Y CN 2529033Y CN 02212777 U CN02212777 U CN 02212777U CN 02212777 U CN02212777 U CN 02212777U CN 2529033 Y CN2529033 Y CN 2529033Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- sleeve
- precharge
- preliminary filling
- communicated
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B33/00—Discharging devices; Coke guides
- C10B33/006—Decoking tools, e.g. hydraulic coke removing tools with boring or cutting nozzles
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Safety Valves (AREA)
Abstract
The utility model relates to a precharge pressure regulating type decoking control valve which belongs to a hydraulic decoking device of a delayed coker in petrol chemical industry. The utility model comprises a valve body (2), a valve core (8), an upper sleeve (11) and a lower sleeve (7); a drainage pore (9), a precharge pore (4) and a decoking water outlet (6) are arranged on the sleeves; a by-pass flow pressure reducing pore plate is arranged outside the valve body and communicated with a by-pass flow opening (10) in the valve body (2); a precharge pressure regulating mechanism is arranged outside the valve body; a regulating stem (19) and a regulating sleeve (18) are arranged in the cavity of the precharge pressure regulating mechanism, a plurality of cone platforms are arranged on the regulating stem, and a plurality of cone grooves corresponding to the cone platforms are arranged in the regulating sleeve; a screw thread pair is composed of threads at the lower end of the regulating stem (19) and the inner screw of a lower end cover (21). a precharge inlet (20) of the cavity of the regulating mechanism is communicated with the precharge pore (4) on the lower sleeve (7), and a precharge outlet (17) is communicated with a full flow outlet (5).
Description
Affiliated technical field
The utility model belongs to hydraulic decoking equipment in the petrochemical industry delayed coking unit, mainly proposes a kind of precharge pressure type decoking control valve.
Background technique
Decoking control valve is applied to petrochemical industry oil refinery delayed coking unit hydraulic decoking system, in order to the flow direction of control high pressure water.Accompanying drawing 2 is existing control valve structural representation.When spool 8 was in extreme lower position, valve was in the by-pass flow operating mode, and high pressure water is crossed the middle bypass port of upper bush 11 cylindrical shells and flowed into by-pass flow pressure reducing orifice 14 from entering the mouth 1 through spool 8, flows out after reducing pressure.When spool promoted 70-90mm, valve was in the preliminary filling operating mode, and high pressure water is through entering the mouth 1, and the preliminary filling hole 4 of lower sleeve 7 bottoms of flowing through enters preliminary filling pressure reducing orifice 23, and flow out from valve body 2 bottoms and full outflow opening 5 the decompression back, and a part of high pressure water flows out from the by-pass flow path 10.When spool 8 was in the extreme higher position, valve was in the decoking operating mode, and at this moment the by-pass flow mouth ends, and high pressure water is from entering the mouth directly through the decoking water outlet 6 in the middle of the lower sleeve 7, from full outflow opening 5 outflows of valve body lower portion.Present widely used decoking control valve, the problem that exists is that preliminary filling pressure reducing orifice and by-pass flow pressure reducing orifice all are positioned at valve inner, under the high pressure water effect, pressure reducing orifice corrosion easy to wear, and its inconvenient maintenance, in addition, raise if preliminary filling pressure can't change water-aspirator pressure, then the corresponding thereupon rising of preliminary filling pressure causes easily damaged parts washed away by high pressure breaking down easily.
Summary of the invention
The purpose of this utility model promptly is to propose a kind of precharge pressure type decoking control valve, to overcome the built-in and unadjustable existing defective of pressure of pressure reducing orifice.
The utility model is finished the technological scheme that its invention task taked: control valve comprises valve body, spool and upper and lower sleeve; Drain hole, preliminary filling hole and decoking water outlet have been set on the sleeve; It is outside and be communicated with by-pass flow mouth on the valve body that the by-pass flow pressure reducing orifice is arranged on valve body; At valve body outer installment preliminary filling pressure regulating mechanism, adjustable lever and adjustment sleeve are set in the cavity of controlling mechanism, have a plurality of taper platforms on the adjustable lever, have a plurality of cone tanks corresponding on the adjustment sleeve with the taper platform, the internal thread of adjustable lever lower end screw thread and lower end cap constitutes screw pair, the preliminary filling inlet of its cavity of controlling mechanism is communicated with the preliminary filling hole on the lower sleeve, and the preliminary filling outlet is communicated with the full outflow opening of valve body.
The utility model is arranged on the valve body outside with the by-pass flow orifice plate, and the preliminary filling pressure regulating mechanism is set replaces original preliminary filling pressure reducing orifice, but make control valve preliminary filling pressure regulated at will, simultaneously, reduce orifice plate corrosion, easy to maintenance, for guaranteeing the control valve proper functioning condition of providing convenience.
Description of drawings
Accompanying drawing 1 is the utility model example structure schematic representation.
Accompanying drawing 2 is existing control valve structural representation.
Among the figure, 1-water intake, 2-valve body, 3-valve seat; 4-preliminary filling hole, the full outflow opening of 5-, 6-decoking water outlet, 7-lower sleeve; the 8-spool, 9-drain hole, 10-by-pass flow mouth, 11-upper bush; the 12-valve rod, 13-by-pass flow orifice plate water outlet, 14-by-pass flow orifice plate, 15-by-pass flow orifice plate water inlet; the 16-upper end cap, the outlet of 17-preliminary filling, 18-adjustment sleeve, 19-adjustable lever; 20-preliminary filling inlet, 21-lower end cap, 22-protective cap.
Embodiment
The accompanying drawing that provides is in conjunction with the embodiments further specified its structure:
As shown in Figure 1, control valve comprises valve body 2, spool 8 and upper and lower sleeve 11,7; Set drain hole 9 on upper bush 11 cylindrical shells, by-pass flow orifice plate 14 is arranged on the valve body outside, and drain hole 9 is communicated with the water inlet 15 of by-pass flow orifice plate, and by-pass flow orifice plate water outlet 13 is communicated with by-pass flow mouth 10, preliminary filling hole 4 and decoking water outlet 6 are arranged on the lower sleeve 7, and they are communicated with full outflow opening 5.At valve body outer installment preliminary filling pressure regulating mechanism, adjustable lever 19 and adjustment sleeve 18 are set in the cavity of controlling mechanism, have a plurality of taper platforms on the adjustable lever 19, have a plurality of cone tanks corresponding on the adjustment sleeve 18 with the taper platform, the internal thread of the screw thread of adjustable lever lower end and lower end cap 21 constitutes screw pair, the preliminary filling inlet 20 of its cavity of controlling mechanism is communicated with the preliminary filling hole 4 on the lower sleeve, and preliminary filling outlet 17 is communicated with full outflow opening 5.By adjusting, make adjustable lever when lower slider, the gap smaller between adjustable lever 19 and the adjustment sleeve 18 to adjustable lever lower end snail line pair, increased the preliminary filling resistance to water-flow, otherwise big if the gap becomes, then reduce the preliminary filling resistance to water-flow, thereby reach the purpose of regulating preliminary filling pressure.
Claims (1)
1, a kind of precharge pressure type decoking control valve, control valve comprises valve body (2), spool (8) and upper and lower sleeve (11) (7); Drain hole (9), preliminary filling hole (4) and decoking water outlet (6) have been set on the sleeve; It is characterized in that: it is outside and be communicated with by-pass flow mouth (10) on the valve body (2) that by-pass flow pressure reducing orifice (14) is arranged on valve body (2); At valve body (2) outer installment preliminary filling pressure regulating mechanism, adjustable lever (19) and adjustment sleeve (18) are set in the cavity of controlling mechanism, have a plurality of taper platforms on the adjustable lever (19), have a plurality of cone tanks corresponding on the adjustment sleeve (18) with the taper platform, the internal thread of adjustable lever (19) lower end screw thread and lower end cap (21) constitutes screw pair, the preliminary filling inlet (20) of its cavity of controlling mechanism is communicated with the preliminary filling hole (4) on the lower sleeve (7), and preliminary filling outlet (17) is communicated with full outflow opening (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02212777U CN2529033Y (en) | 2002-02-08 | 2002-02-08 | Precharge pressure regulating decoke control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02212777U CN2529033Y (en) | 2002-02-08 | 2002-02-08 | Precharge pressure regulating decoke control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2529033Y true CN2529033Y (en) | 2003-01-01 |
Family
ID=33692405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02212777U Expired - Fee Related CN2529033Y (en) | 2002-02-08 | 2002-02-08 | Precharge pressure regulating decoke control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2529033Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500771A (en) * | 2014-05-26 | 2015-04-08 | 襄阳航生石化环保设备有限公司 | Self-balancing decoking control valve |
| CN108105420A (en) * | 2017-12-19 | 2018-06-01 | 樊东升 | A kind of high-pressure hydraulic pump discharge control valve |
| CN113503380A (en) * | 2021-07-29 | 2021-10-15 | 洛阳三旋智能装备有限公司 | Decoking control valve |
-
2002
- 2002-02-08 CN CN02212777U patent/CN2529033Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500771A (en) * | 2014-05-26 | 2015-04-08 | 襄阳航生石化环保设备有限公司 | Self-balancing decoking control valve |
| CN108105420A (en) * | 2017-12-19 | 2018-06-01 | 樊东升 | A kind of high-pressure hydraulic pump discharge control valve |
| CN108105420B (en) * | 2017-12-19 | 2020-03-10 | 樊东升 | High-pressure water pump outlet control valve |
| CN113503380A (en) * | 2021-07-29 | 2021-10-15 | 洛阳三旋智能装备有限公司 | Decoking 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 |