CN109854753B - High-parameter black water angle valve with flow resistance with flow disturbing and ash residue collecting functions - Google Patents
High-parameter black water angle valve with flow resistance with flow disturbing and ash residue collecting functions Download PDFInfo
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- CN109854753B CN109854753B CN201811561575.5A CN201811561575A CN109854753B CN 109854753 B CN109854753 B CN 109854753B CN 201811561575 A CN201811561575 A CN 201811561575A CN 109854753 B CN109854753 B CN 109854753B
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Abstract
The invention provides a high-parameter black water angle valve with flow resistance with flow disturbance and ash residue collection functions, which comprises a valve main body assembly and a valve seat assembly, wherein a valve core assembly is arranged in the valve main body assembly, an inlet cavity is formed in an opening at the side of a valve body, an outlet cavity is formed in a connecting pipe, the valve core assembly comprises a valve core and a push rod, the push rod penetrates through an upper end cover, the lower end of the push rod extends out of the lower end face of the upper end cover and is connected with the valve core, the valve core moves up and down under the action of the push rod along the axis of the outlet cavity, the upper end face of the valve seat core is arranged below the valve core and is provided with a through hole corresponding to the valve core, a lining assembly with an upper top face connected. The invention has simple structure, easy maintenance and repair, easy adjustment of the strength of the throttling action according to the application working condition, improved control precision, effectively improved back pressure at the lower part of the valve core and reduced flow velocity at the throttling part of the valve core assembly and the valve seat assembly.
Description
Technical Field
The invention relates to the technical field of high-end control valves for coal chemical industry, in particular to a high-parameter black water angle valve with flow resistance and turbulence and ash residue collection functions.
Background
The black water angle valve is a high-end control valve for accurately adjusting the pressure and the flow of a black water medium in a coal gasification working section in the coal chemical industry, and the performance and the reliability of the black water angle valve have important influences on the safety and the stability of the whole coal gasification device. Because the working medium has the working condition characteristics of impurities, corrosivity, high temperature, large regulating pressure difference and the like, and the black water angle valve is of an unbalanced valve core structure, the valve core of the black water angle valve can generate strong vibration and flash evaporation phenomena under the action of high pressure difference, the valve internals of the black water angle valve are easy to erode and cavitate and wear, and the service life of the valve is short.
The flow resistance is reasonably designed to reduce the flow rate of the throttling parts of the valve core assembly and the valve seat assembly, and the method is an effective means for prolonging the service life of the valve. At present, a black water angle valve usually adopts a multi-stage valve core or multi-stage orifice plate structure to carry out flow resistance design, but the existing multi-stage pressure reduction structure is complex, the manufacturing cost is high, the valve core or multi-stage orifice plate structure is also easy to erode and wear in work, and the throttling function is weakened or even fails.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the invention provides the high-parameter black water angle valve which can effectively improve the back pressure at the lower part of the valve core, reduce the flow velocity of the throttling part of the valve core assembly and the valve seat assembly, has the characteristics of simple structure, easiness in overhauling and maintenance and the like, is easy to adjust the strength of the throttling action according to the application working condition and improves the control precision, and is provided with the flow resistance with the functions of turbulent flow and ash residue collection.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high-parameter black water angle valve with flow resistance having flow disturbance and ash residue collection functions comprises a valve main body assembly and a valve seat assembly arranged below the valve main body assembly, wherein a valve core assembly is arranged in the valve main body assembly, the valve main body assembly comprises a valve body, an upper end cover fixed at the upper end of the valve body and a connecting pipe fixed at the lower end of the valve body, the valve seat assembly comprises a valve seat core, a valve seat sleeve and a valve seat pressing plate which are sequentially fixed from inside to outside, the lower end of the valve body is provided with an opening, the valve seat pressing plate is fixed in the opening at the lower end of the valve body, the opening at the side of the valve body is provided with an inlet cavity, the connecting pipe is provided with an outlet cavity, the valve core assembly comprises a valve core and a push rod, the push rod penetrates through the upper end cover, the lower end of the push rod extends out of the lower end face of the, the joint pipe is internally fixed with a bushing assembly which is provided with an upper top surface, a valve seat assembly and a pressure reducing flow channel, the bushing assembly is internally provided with a through hole, the through hole is internally fixed with a solid medium collector, the solid medium collector is internally provided with a turbulence rod, and an inlet cavity, the valve seat core through hole, the bushing assembly through hole and an outlet cavity form a valve fluid channel for black water medium to pass through.
The bushing assembly comprises a bushing fixing pipe, a top bushing and a bottom bushing, the top bushing and the bottom bushing are coaxially connected and fixed in the bushing fixing pipe, the peripheral surface of the bushing fixing pipe is fixed with the inner wall of the connecting pipe, the solid medium collector is fixed in the top bushing and provided with a pressure reducing gap between the top bushing and the bottom bushing, a pressure reducing through hole is formed between the top bushing and the bottom bushing, and the pressure reducing gap and the pressure reducing through hole form a pressure reducing flow channel.
The lower end of the push rod is fixed with a threaded sleeve with internal threads, and the valve core is fastened with the threaded sleeve in a threaded manner. The valve core is connected to the lower end of the push rod through the threaded sleeve in a screwing mode, and the threaded sleeve and the push rod can be connected through spot welding. The valve core assembly, especially the anti-rotation key can be arranged between the push rod and the upper end cover, so that the valve core assembly cannot rotate relative to the valve body, and the valve core assembly moves up and down along the axis of the valve core assembly under the action of the drive of the push rod by the driver.
The top bushing is provided with threads, and the bottom of the solid medium collector is screwed on the bottom bushing in a matching manner through the threads. The solid medium collector can be preferably an ash collector, has the functions of turbulence and coal slag collection, and can be selectively assembled with turbulence rods with different quantities and sizes according to different working conditions.
The packing box is arranged between the upper end cover and the push rod, a first packing set, a guide sleeve, a support ring and a second packing set are sequentially filled in the packing box from bottom to top, a packing pressing ring and a top pressing plate are arranged on the second packing set, and the packing pressing ring and the top pressing plate compress and fixedly seal the packing in the packing box. The first packing set, the guide sleeve, the support ring and the second packing set form a main sealing pair at the push rod.
And winding pads are arranged between the valve seat assembly and the connecting end faces of the lower connecting pipe and the bush assembly.
In the scheme, during operation, black water medium flows into the valve body from the inlet cavity and then passes through a throttling surface formed by the valve core and the valve seat core to complete primary pressure reduction; then generating turbulent flow dissipation through a solid medium collector with turbulent flow and ash slag collecting functions, and enabling the turbulent flow dissipation to flow out of a pressure reduction gap between the solid medium collector and the top lining to finish secondary pressure reduction; and finally, the black water medium flows out of the through holes of the top lining and the bottom lining to the outlet cavity to complete three-stage pressure reduction. Compared with the traditional black water angle valve, the flow resistance design is carried out without additionally designing a multi-stage valve core or a multi-stage orifice plate, the flow velocity of the throttling part of the valve core assembly and the valve seat assembly can be effectively reduced through the valve core valve seat core, the solid medium collector and the bushing assembly, the strength of the throttling effect can be adjusted according to the working condition, and the control precision is improved.
The high-parameter black water angle valve with the flow resistance and the turbulent flow and ash residue collection functions has the advantages of being simple in structure, easy to overhaul and maintain and the like, adjusting the strength of the throttling function according to application working conditions easily, improving control accuracy, effectively improving back pressure of the lower portion of the valve core, and reducing flow speed of the throttling portion of the valve core assembly and the valve seat assembly.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.
Fig. 2 is a schematic diagram of the structure of a solid media collector in a preferred embodiment of the invention.
Figure 3 is a top view of a solid media collector in a preferred embodiment of the invention.
In the figure, the device comprises a connecting pipe 1, a bushing fixing pipe 3, a bottom bushing 4, a top bushing 5, a solid medium collector 6, a turbulence rod 7, a valve body 8, a valve seat core 9, a valve seat sleeve 10, a valve seat pressing plate 11, a valve core 12, a threaded sleeve 13, a push rod 14, an upper end cover 15, a packing pressing ring 16, a top pressing plate 17, an outlet cavity 18, a winding pad 19, a packing group I20, a guide sleeve 21, a support ring 22, a packing group II 23 and an inlet cavity.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The high-parameter black water angle valve with flow resistance having turbulent flow and ash collection functions as shown in fig. 1 to 3 is the best embodiment of the invention, and comprises a valve main body assembly, and a valve seat assembly arranged below the valve main body assembly, wherein a valve core 11 assembly is arranged in the valve main body assembly.
The valve body assembly comprises a valve body 7, an upper end cover 14 fixed at the upper end of the valve body 7 and a connecting pipe 1 fixed at the lower end of the valve body 7. The valve seat assembly comprises a valve seat core 8, a valve seat sleeve 9 and a valve seat pressing plate 10 which are fixed from inside to outside in sequence. The valve seat core 8 and the valve seat sleeve 9 are in interference fit, interference magnitude suitable for working condition requirements is selected according to relevant standards, the valve seat sleeve 9 is heated to a specified temperature during assembly, then the valve seat core 8 is inserted into the sleeve, then the upper end face and the lower end face are machined, residual stress eliminating treatment is carried out, the prestress of the hard alloy valve seat core 8 is improved, assembling form and position errors are reduced, and the mechanical performance of the valve seat assembly is improved.
The valve core 11 assembly comprises a valve core 11 and a push rod 13. Have the packing box between upper end cover 14 and the push rod 13, from supreme packing group 19, uide bushing 20, support ring 21 and two 22 packing groups of packing are filled in proper order down in the packing box, then have packing clamping ring 15 and top clamp plate 16 on two 22 packing groups, packing clamping ring 15 and top clamp plate 16 compress tightly and fixed seal the packing in the packing box. The first packing set 19, the guide sleeve 20, the support ring 21 and the second packing set 22 form a main sealing pair at the push rod 13.
The push rod 13 penetrates through the upper end cover 14, and the lower end of the push rod 13 extends out of the lower end face of the upper end cover 14 and is connected with the valve core 11. In practical design, a threaded sleeve 12 with internal threads is fixed at the lower end of the push rod 13, and the valve core 11 is fastened with the threaded sleeve 12 in a threaded mode. The valve core 11 is screwed to the lower end of the push rod 13 through the threaded sleeve 12, and the threaded sleeve 12 and the push rod 13 can be connected through spot welding. An anti-rotation key can be arranged between the valve core 11 assembly, particularly the push rod 13 and the upper end cover 14, so that the valve core 11 assembly cannot rotate relative to the valve body 7, and the valve core 11 assembly moves up and down along the axis of the valve core 11 assembly under the action of the driver driving the push rod 13.
The valve core 11 moves up and down along the axis of the outlet cavity 17 under the action of the push rod 13, and the upper end face of the valve seat core 8 is arranged below the valve core 11 and is provided with a through hole corresponding to the valve core 11. A bushing component is fixed in the connecting pipe 1, the upper top surface of the bushing component is connected with the valve seat component, and a pressure reducing flow passage is arranged in the bushing component. The bushing assembly is internally provided with a through hole, a solid medium collector 5 is fixed in the through hole, and a turbulence bar 6 is arranged in the solid medium collector 5.
The bush subassembly includes fixed pipe 2 of bush, top bush 4 and bottom bush 3, coaxial coupling about top bush 4 and bottom bush 3 is fixed in fixed pipe 2 of bush, and the fixed pipe 2 outer peripheral face of bush is fixed with 1 inner wall of takeover, solid medium collector 5 is fixed in top bush 4. The top bushing 4 is threaded and the bottom of the solid medium collector 5 is screwed to the bottom bushing 3 with mating threads. A pressure reducing gap is arranged between the solid medium collector 5 and the top lining 4, a pressure reducing through hole is arranged between the top lining 4 and the bottom lining 3, and the pressure reducing gap and the pressure reducing through hole form a pressure reducing flow passage. And a winding pad 18 is arranged between the valve seat assembly and the connecting end surfaces of the lower connecting pipe 1 and the bush assembly.
Preferably, the solid medium trap 5 may preferably be an ash trap. The turbulence bar 6 and the ash collector are in clearance fit, lubricating grease is firstly smeared in a mounting hole of the ash collector during assembly, then the turbulence bar 6 is inserted in sequence, and then the assembly body is fixed at the mounting position of the top lining 4 by using screws. The turbulence bar 6 is used for increasing the turbulent dissipation of medium fluid, and the ash collector is used for depositing ash with lower kinetic energy, generating a solid deposition layer and absorbing the impact energy of the medium.
Specifically, the number and the length of the turbulence bars 6 can be selected according to specific application conditions, and the larger the number of the turbulence bars 6 is, the longer the length is, and the more obvious the flow resistance is. The diameter and the depth of the ash collector can be selected according to specific application working conditions, and the diameter and the depth are not suitable to be selected to be too large so as to avoid that solid particles are accumulated to cause valve blockage due to too small and too long gaps between the ash collector and the lining.
The lower end of the valve body 7 is provided with an opening, the valve seat pressing plate 10 is fixed in the opening at the lower end of the valve body 7, the side opening of the valve body 7 is provided with an inlet cavity 23, and the connecting pipe 1 is provided with an outlet cavity 17. The inlet chamber 23, valve seat core 8 through bore, liner assembly through bore and outlet chamber 17 form a valve fluid passageway for the passage of the black aqueous medium.
When the valve works, black water medium flows into the valve body 7 from the inlet cavity 23 and then passes through a throttling surface formed by the valve core 11 and the valve seat core 8 to complete primary pressure reduction; then generating turbulent flow dissipation through a solid medium collector 5 with turbulent flow and ash slag collection functions, and enabling the turbulent flow dissipation to flow out of a pressure reduction gap between the solid medium collector 5 and the top lining 4 to finish secondary pressure reduction; finally, the black water medium flows out from the through holes of the top bushing 4 and the bottom bushing 3 to the outlet cavity 17, and three-stage decompression is completed. Compared with the traditional black water angle valve, the flow resistance design is carried out without additionally designing a multi-stage valve core 11 or a multi-stage orifice plate, the flow velocity of the throttling part of the valve core 11 component and the valve seat component can be effectively reduced through the valve core 11 valve seat core 8, the solid medium collector 5 and the bushing component, the strength of the throttling effect can be adjusted according to the working condition, and the control precision is improved.
The high-parameter black water angle valve with the flow resistance and the turbulent flow and ash residue collection functions is designed in the above way, the valve core 11 assembly, the valve seat assembly, the top bushing 4 and the bottom bushing 3 are designed in a direct-pressure mode, the valve core 11 assembly, the valve seat assembly, the top bushing 4 and the bottom bushing 3 are tightly pressed to form a valve installation size chain, the structure is compact, the valve internals are easy to overhaul and replace, and the high-parameter black water angle valve has the characteristics of simple structure, easiness in overhaul and maintenance and the like; the flow velocity of the throttling part of the valve core 11 assembly and the valve seat assembly can be effectively reduced, multi-stage pressure reduction is realized in the valve, the valve is not easy to deform, and the service life of the valve core 11 can be prolonged; when the valve is designed and purchased, the turbulence bars 6 with different numbers and sizes can be selected according to different working condition requirements, and different ash collectors can be selected, so that the valve is suitable for the requirements of different industrial productions on the adjusting performance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides an equip high parameter black water angle valve that has vortex and lime-ash collection function flow resistance, includes valve main part subassembly, sets up the disk seat subassembly under the valve main part subassembly, is equipped with the case subassembly in the valve main part subassembly, the valve main part subassembly include the valve body, fix the upper end cover in the valve body upper end and fix the takeover at the valve body lower extreme, the disk seat subassembly include from inside to outside fixed valve seat core, disk seat sleeve and disk seat clamp plate in proper order, the valve body lower extreme has the opening, and the disk seat clamp plate is fixed in the opening of valve body lower extreme, valve body side opening has the inlet chamber, and takeover department has outlet chamber, its characterized in that: the valve core assembly comprises a valve core and a push rod, the push rod penetrates through the upper end cover, the lower end of the push rod extends out of the lower end face of the upper end cover, the valve core is connected with the valve core, the valve core moves up and down under the action of the push rod along the axis of the outlet cavity, the upper end face of the valve seat core is arranged below the valve core and corresponds to the valve core, a lining assembly is fixed in the connecting pipe, the upper top face of the lining assembly is connected with the valve seat assembly, a pressure reduction flow channel is formed in the lining assembly, a solid medium collector is fixed in the lining assembly, a turbulence bar is arranged in the solid medium collector, and the inlet cavity, the valve seat core through hole, the lining assembly through hole and.
2. The high-parameter black water angle valve with flow resistance for turbulent flow and ash collection function as claimed in claim 1, wherein: the bushing assembly comprises a bushing fixing pipe, a top bushing and a bottom bushing, the top bushing and the bottom bushing are coaxially connected and fixed in the bushing fixing pipe from top to bottom, the outer peripheral surface of the bushing fixing pipe is fixed with the inner wall of the connecting pipe, the solid medium collector is fixed in the top bushing and provided with a pressure reduction gap between the solid medium collector and the top bushing, a pressure reduction through hole is formed between the top bushing and the bottom bushing, and the pressure reduction gap and the pressure reduction through hole form a pressure reduction flow channel.
3. The high-parameter black water angle valve with flow resistance for turbulent flow and ash collection function as claimed in claim 1, wherein: the lower end of the push rod is fixed with a threaded sleeve with internal threads, and the valve core is fastened with the threaded sleeve in a threaded manner.
4. The high-parameter black water angle valve with flow resistance for turbulent flow and ash collection function as claimed in claim 2, wherein: the top bushing is provided with threads, and the bottom of the solid medium collector is screwed on the bottom bushing in a matching manner through the threads.
5. The high-parameter black water angle valve with flow resistance for turbulent flow and ash collection function as claimed in claim 1, wherein: the packing box is arranged between the upper end cover and the push rod, a first packing set, a guide sleeve, a support ring and a second packing set are sequentially filled in the packing box from bottom to top, a packing pressing ring and a top pressing plate are arranged on the second packing set, and the packing pressing ring and the top pressing plate compress and fixedly seal the packing in the packing box.
6. The high-parameter black water angle valve with flow resistance for turbulent flow and ash collection function as claimed in claim 1, wherein: and winding pads are arranged between the valve seat assembly and the connecting end faces of the lower connecting pipe and the bush assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561575.5A CN109854753B (en) | 2018-12-20 | 2018-12-20 | High-parameter black water angle valve with flow resistance with flow disturbing and ash residue collecting functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561575.5A CN109854753B (en) | 2018-12-20 | 2018-12-20 | High-parameter black water angle valve with flow resistance with flow disturbing and ash residue collecting functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854753A CN109854753A (en) | 2019-06-07 |
| CN109854753B true CN109854753B (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811561575.5A Active CN109854753B (en) | 2018-12-20 | 2018-12-20 | High-parameter black water angle valve with flow resistance with flow disturbing and ash residue collecting functions |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59140967A (en) * | 1983-01-31 | 1984-08-13 | Yamatake Honeywell Co Ltd | Valve seat for single seat-type ball valve and manufacturing method thereof |
| JPS59140973A (en) * | 1983-01-31 | 1984-08-13 | Yamatake Honeywell Co Ltd | Valve seat for control valve and manufacturing method thereof |
| US6886598B2 (en) * | 2001-01-08 | 2005-05-03 | Wood Group Pressure Control Limited | Choke restrictor devices and methods |
| CN201651343U (en) * | 2010-05-07 | 2010-11-24 | 上海开维喜阀门集团有限公司 | Black water regulating valve |
| CN102537464A (en) * | 2011-12-12 | 2012-07-04 | 航天长征化学工程股份有限公司 | Erosion-resistant slag-water high-pressure angle type regulating valve |
| CN103016754B (en) * | 2012-12-28 | 2015-03-11 | 奥士奥控制阀门(上海)有限公司 | Pneumatic high pressure regulating valve |
| CN104801420B (en) * | 2015-05-13 | 2017-05-10 | 东南大学 | Device and method for increasing grain size of PM2.5 (particulate matter2.5) through turbulent flow and chemical agglomeration coupling |
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