CN203892599U - Self-balancing type decoking control valve - Google Patents
Self-balancing type decoking control valve Download PDFInfo
- Publication number
- CN203892599U CN203892599U CN201420270787.9U CN201420270787U CN203892599U CN 203892599 U CN203892599 U CN 203892599U CN 201420270787 U CN201420270787 U CN 201420270787U CN 203892599 U CN203892599 U CN 203892599U
- Authority
- CN
- China
- Prior art keywords
- valve
- self
- valve body
- control valve
- balancing type
- 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
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to a self-balancing type decoking control valve, belongs to the technical field of valves, and mainly solves the problem that an existing valve is inaccurate in priming positioning and resultantly is instable in priming pressure and high in maintenance difficulty. The self-balancing type decoking control valve is characterized by comprising a support, a valve body part and an execution mechanism part. The valve body part comprises a valve body, a valve stem, a lower valve seat, a lower sealing seat, a valve spool, a lower sleeve, a spring energy-storage sealing ring, an upper sealing seat, an upper sleeve, an upper valve seat, a pressure-reduction hole plate component and a pressure-reduction hole plate support. The execution mechanism part comprises a connecting block, a driving screw, a guide feather key, an approach switch and an electric execution mechanism. The self-balancing type decoking control valve has the advantages that motion is more stable, deflection of the valve spool is avoided, priming positioning is more accurate, sealing performance is more reliable, and on-site replacement and maintenance is facilitated. The self-balancing type decoking control valve is mainly used for delaying a coking device.
Description
Technical field
The utility model belongs to valve technology field.Be specifically related to a kind of petroleum chemical industry delayed coking unit valve, effect is that high-pressure water pump is started under minimum discharge, avoids the frequent starting of pump, impact electrical network, use little pressure small flow prefilled pipeline simultaneously, avoid occurring water hammer, damage pipeline and equipment.
Background technique
Existing petroleum chemical industry delayed coking unit hydraulic decoking system is arranged on high-pressure water pump outlet line with decoking control valve, effect is that high-pressure water pump is started under minimum discharge, avoid the frequent starting of pump, impact electrical network, use little pressure small flow prefilled pipeline simultaneously, avoid occurring water hammer, damage pipeline and equipment.Generally reflux position, preliminary filling position and these three kinds of working staties of standard-sized sheet position of valve to be controlled as actuator with a double-acting cylinder, the main problem existing is location, preliminary filling position inaccuracy, cause Preliminary pressure-filled unstable, maintenance simultaneously need to be dismantled whole valve body, has improved maintenance difficulty.
Due to improving of domestic coking plant technology condition, the technical performance of existing decoking control valve can not adapt to delayed coking unit and maximize, the requirement that high-pressure water pump pressure and flow increase, need development technique stable performance, adapt to high pressure and large flow, favorable sealing property, can telecontrol, adapt to the self-balancing type decoking control valve of following coking plant development.
Summary of the invention
The purpose of this utility model is to provide a kind of self-balancing type decoking control valve, is to solve existing decoking control valve preliminary filling location inaccuracy, causes Preliminary pressure-filled unstable, and valve orifice plate overhauls difficult problem.
The utility model is achieved through the following technical solutions: a kind of self-balancing type decoking control valve, for delayed coking unit, is characterized in that: comprise and installing by bearing, valve body part, actuator's part, wherein, described valve body is partly arranged on bearing, comprise valve body, valve rod, lower valve base, bottom sealing socket, spool, lower sleeve, spring energy-storage seal ring, upper seal support, upper bush, upper valve base, pressure reducing orifice assembly, pressure reducing orifice support, two relative sides of valve body are respectively equipped with entrance point, outlet end, entrance point communicates with valve body cavity bottom, water port is set in the middle of valve rod, lower valve base and bottom sealing socket are arranged in the cavity between entrance point and outlet end, spring energy-storage seal ring is arranged between upper bush and lower sleeve, bypass outlet is arranged on valve body cavity top, pressure reducing orifice assembly and pressure reducing orifice support are arranged on bypass outlet end, described actuator partly comprises contiguous block, drive screw, guiding feather key, approach switch, electric actuator, contiguous block is connected between valve rod and drive screw, guiding feather key coordinates with the guiding groove of drive screw, and electric actuator is connected with drive screw.
Valve rod described in technical solution of the present utility model adopts guiding type design, and valve rod arranges fulcrum in valve body lower portion, at gland place, valve body top, fulcrum is set simultaneously, and upper lower fulcrum all adopts filler to seal.The guiding type design of valve rod has reduced the friction between spool and upper bush and lower sleeve, and the deflection of avoiding spool to exist, makes sealability more reliable.
Spring energy-storage seal ring described in technical solution of the present utility model is two way sealed form, and spring provides permanent elastic force to seal ring, and makes up skew or the bias of fret wear and mating parts, realizes two-way effective sealing.
Lower valve base, upper valve base that lower valve base described in technical solution of the present utility model, upper valve base are non-metallic material, do not reveal under the effect that is engaged in high pressure decoking water between assurance and bottom sealing socket and upper seal support.
Pressure reducing orifice assembly described in technical solution of the present utility model is arranged in pressure reducing orifice support, be arranged on the side of valve body, be convenient to install and maintenance, pressure reducing orifice assembly is comprised of cylindrical orifice plate, cylindrical orifice plate is provided with vent, guarantees that high pressure water passes back into high-order water pot with low-pressure after pressure reducing orifice assembly.
The utility model has following characteristics:
1, valve body adopts side to enter the mode that side goes out, make spool in the process of switch valve all the time in self balancing state, its motion is more steady;
2, valve rod adopts upper and lower fulcrum type design, the friction of reduction and sleeve, the deflection of avoiding spool to exist;
3, adopt electric actuator, while making preliminary filling position, location is more accurate;
4, valve seat adopts nonmetallic material, and sealability is more reliable;
5, the fluid analysis of pressure reducing orifice adopts FLUENT software to carry out simulation analysis, makes calculating more accurate, and orifice plate adopts external to install simultaneously, and convenient scene is changed and maintenance.
The utility model is mainly used in the self-balancing type decoking control valve of delayed coking unit.
Accompanying drawing explanation
Fig. 1 is self-balancing type decoking control valve schematic appearance.
Fig. 2 is self-balancing type decoking control valve structural representation.
Fig. 3 is self-balancing type decoking control valve bypass outlet sectional drawing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The decoking control valve of self-balancing type shown in Fig. 1 schematic appearance.Mainly comprise and installing by bearing 1, valve body part 2, actuator's part 3 three parts.Valve body part 2 is arranged on bearing 1, and bearing 1 is arranged on ground concrete or steel structure base, is bolted connection.Actuator's part 3 is positioned at valve body part 2 tops, and the valve rod 5 of valve body part 2 connects by contiguous block 14 with the drive screw 15 of actuator part 3.
Figure 2 shows that self-balancing type decoking control valve structural representation, Fig. 3 is self-balancing type decoking control valve bypass outlet sectional drawing.Valve body part 2 comprises valve body 4, valve rod 5, lower valve base 6, bottom sealing socket 7, spool 8, lower sleeve 9, spring energy-storage seal ring 10, upper seal support 11, upper bush 12, upper valve base 13, pressure reducing orifice assembly 19, pressure reducing orifice support 20.Two relative sides of valve body 4 are respectively equipped with entrance point, outlet end, entrance point communicates with valve body 4 cavity bottoms, outlet end and valve body 4 cavitys middle parts communicate, and when valve body adopts side to enter mode that side goes out can to reduce switch valve, the resistance of valve core movement, makes its motion more steady.Valve rod 5 is connected with spool 8 lower ends.Lower valve base 6 and bottom sealing socket 7 are arranged in the cavity between entrance point and outlet end, and spring energy-storage seal ring 10 is arranged between upper bush 12 and lower sleeve 9, within spool 8 is positioned at upper bush 12, lower sleeve 9.Valve rod 5 adopts guiding type design, valve rod 5 arranges fulcrum in valve body 4 bottoms, at valve body 4 gland places, top, fulcrum is set simultaneously, upper lower fulcrum all adopts filler to seal, reduced the friction of spool 8 with upper bush 12 and lower sleeve 9, the deflection of avoiding spool 8 to exist, makes sealability more reliable.Spring energy-storage seal ring 10 is two way sealed form, and spring provides permanent elastic force to seal ring, and makes up skew or the bias of fret wear and mating parts, realizes two-way effective sealing.Bypass outlet is arranged on valve body 4 cavity tops, pressure reducing orifice assembly 19 is arranged in pressure reducing orifice support 20, be arranged on the side of valve body 4, be convenient to install and maintenance, pressure reducing orifice assembly 19 is comprised of cylindrical orifice plate, cylindrical orifice plate is provided with vent, guarantees that high pressure water passes back into high-order water pot with low-pressure after pressure reducing orifice assembly 19.Lower valve base, upper valve base that lower valve base 6, upper valve base 13 are non-metallic material, do not reveal under the effect that is engaged in high pressure decoking water between assurance and bottom sealing socket 7 and upper seal support 11.Actuator's part 3 comprises contiguous block 14, drive screw 15, guiding feather key 16, approach switch 17, electric actuator 18.Contiguous block 14 is connected between valve rod 5 and drive screw 15.The guiding groove of drive screw 15 coordinates with guiding feather key 16, and 15 of drive screws of assurance are done axial-movement, do not rotate motion.Approach switch 17 returns news signal to Control System for Removing Coke by Water.Electric actuator 18 is connected with drive screw 15, can realize control, telecontrol on the spot, and with manual operation function.Effect of the present utility model is that high-pressure water pump is started under minimum discharge, avoids the frequent starting of pump, impacts electrical network; Use little pressure small flow prefilled pipeline simultaneously, avoid occurring water hammer, damage pipeline and equipment.
Claims (5)
1. a self-balancing type decoking control valve, for delayed coking unit, is characterized in that: comprise and installing by bearing (1), valve body part (2), actuator's part (3), wherein, described valve body part (2) is arranged on bearing (1), comprise valve body (4), valve rod (5), lower valve base (6), bottom sealing socket (7), spool (8), lower sleeve (9), spring energy-storage seal ring (10), upper seal support (11), upper bush (12), upper valve base (13), pressure reducing orifice assembly (19), pressure reducing orifice support (20), two relative sides of valve body (4) are respectively equipped with entrance point, outlet end, entrance point communicates with valve body (4) cavity bottom, valve rod (5) is connected with spool (8) lower end, lower valve base (6) and bottom sealing socket (7) are arranged in the cavity between entrance point and outlet end, spring energy-storage seal ring (10) is arranged between upper bush (12) and lower sleeve (9), bypass outlet is arranged on valve body (4) cavity top, pressure reducing orifice assembly (19) and pressure reducing orifice support (20) are arranged on bypass outlet, described actuator's part (3) comprises contiguous block (14), drive screw (15), guiding feather key (16), approach switch (17), electric actuator (18), contiguous block (14) is connected between valve rod (5) and drive screw (15), guiding feather key (16) coordinates with the guiding groove of drive screw (15), and electric actuator (18) is connected with drive screw (15).
2. self-balancing type decoking control valve according to claim 1, it is characterized in that: described valve rod (5) adopts guiding type design, valve rod (5) arranges fulcrum in valve body (4) bottom, at gland place, valve body (4) top, fulcrum is set simultaneously, and upper lower fulcrum all adopts filler to seal.
3. self-balancing type decoking control valve according to claim 1, is characterized in that: described spring energy-storage seal ring (10) is two way sealed form.
4. self-balancing type decoking control valve according to claim 1, is characterized in that: described lower valve base (6), upper valve base (13) are the lower valve base of non-metallic material, upper valve base.
5. self-balancing type decoking control valve according to claim 1, is characterized in that: described pressure reducing orifice assembly (19) is arranged in pressure reducing orifice support (20), is arranged on the side of valve body (4); Pressure reducing orifice assembly (19) is comprised of cylindrical orifice plate, and cylindrical orifice plate is provided with vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270787.9U CN203892599U (en) | 2014-05-26 | 2014-05-26 | Self-balancing type decoking control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270787.9U CN203892599U (en) | 2014-05-26 | 2014-05-26 | Self-balancing type decoking control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892599U true CN203892599U (en) | 2014-10-22 |
Family
ID=51719004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420270787.9U Expired - Fee Related CN203892599U (en) | 2014-05-26 | 2014-05-26 | Self-balancing type decoking control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892599U (en) |
Cited By (1)
| 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 |
-
2014
- 2014-05-26 CN CN201420270787.9U patent/CN203892599U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202251182U (en) | Hand-operated pilot valve | |
| CN203892599U (en) | Self-balancing type decoking control valve | |
| CN104728204A (en) | Distributor for tractor | |
| CN204493098U (en) | A kind of high pulling torque gas-liquid linkage actuator hand pump | |
| CN205260244U (en) | Small -size acidizing fracturing plunger pump | |
| CN104500771A (en) | Self-balancing decoking control valve | |
| CN104265620B (en) | The oil field plunger oil-well pump Dynamic Seal combination plunger assembly with protection device | |
| CN206874249U (en) | Fluid power expansion type well packer capable of flushing well | |
| CN203868394U (en) | Novel extension-bar ball valve | |
| CN202369328U (en) | Hydraulic jack with overload protection function | |
| CN103835928A (en) | External controllable oil supply structure of hydraulic reciprocating diaphragm pump | |
| CN204212964U (en) | A kind of floating type oil of joining for Variable plunger pump is secondary | |
| CN204493336U (en) | For the distributor of tractor | |
| CN203784319U (en) | Self-sealing pressure stop valve | |
| CN202250554U (en) | Impact type water turbine spray needle pressureless feedback device | |
| CN203604686U (en) | Plunger type throttle valve | |
| CN203756478U (en) | External controllable oil-feeding structure of hydraulic diaphragm reciprocation pump | |
| CN202991681U (en) | Drilling IBOP (internal blowout preventer) protection system | |
| CN205190172U (en) | Hydraulic pressure diaphragm pump with draw controllable benefit of formula oil structure to one side | |
| CN208268503U (en) | Embedded more sealed valve cores | |
| CN202091275U (en) | Pilot type main control valve | |
| CN204458608U (en) | A kind of used with tractor zero leakage multi-way valve | |
| CN2900791Y (en) | Change valve | |
| CN208503907U (en) | A kind of digging machine disintegrating hammer automatic lubricating system | |
| CN208268438U (en) | Steam energy-saving and high-pressure sleeve adjusting valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20200526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |