CN204061923U - A kind of wear-resisting resistance to erosion valve - Google Patents

A kind of wear-resisting resistance to erosion valve Download PDF

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Publication number
CN204061923U
CN204061923U CN201420496065.5U CN201420496065U CN204061923U CN 204061923 U CN204061923 U CN 204061923U CN 201420496065 U CN201420496065 U CN 201420496065U CN 204061923 U CN204061923 U CN 204061923U
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valve
resistant
wear
sleeve
flush
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CN201420496065.5U
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Chinese (zh)
Inventor
叶建中
邱晓来
张雷
王汉洲
吴寿敬
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CHAODA VALVE GROUP Co Ltd
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CHAODA VALVE GROUP Co Ltd
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Abstract

The utility model provides a kind of wear-resisting resistance to erosion valve, comprises base, valve component, valve body, adjusting head, valve rod, sleeve, valve gap and feeding port, and wherein, valve body is provided with an inlet channel; Sleeve through valve body certain length, is formed with the diversion division being positioned at inlet channel along its central axis and towards base direction, and is provided with on this diversion division sidewall and at least onely flows through and the flow-guiding mouth be connected with inlet channel for medium; Valve component, between base and described valve body, is formed with the cavity that runs through valve component in it, the two ends of this cavity are connected with the outlet flow of diversion division and base respectively.Implement the utility model embodiment, it is easy to maintenance, reduce noise, and wear-resisting resistance to erosion, long service life.

Description

Wear-resistant and scouring-resistant valve
Technical Field
The utility model relates to the technical field of valves, especially, relate to a wear-resisting resistant valve that erodees.
Background
At present, a large number of wear-resistant and scouring-resistant valves are needed in a gasification device in the coal chemical industry, particularly for the working conditions of black water and grey water media containing a coal water slurry gasification process and powder media of a dry coal powder gasification process such as shell plates and the like, a conventional regulating valve is used for regulating the flow of the media and the pressure caused by scouring of the media, and the device has the following defects: 1. the medium is easy to scale in the flow passage to form blockage on the flow passage; 2. the flow channel and the flow channel shell are easy to be washed by high-speed medium to penetrate through the damage; 3. the adjusting head is easy to be washed and damaged by high-speed medium; 4. the valve rod is not cleaned in time and is easy to be blocked and cannot move flexibly; 5. the medium and the flow channel are likely to resonate at high pressure, which generates great noise. Therefore, the existing regulating valve has many faults and high maintenance rate, and cannot meet the requirements of reliable regulation and normal use of black water, grey water medium and high-pressure powder medium in a gasification device and the requirement of high-speed development of the coal chemical industry.
Disclosure of Invention
The embodiment of the utility model provides a technical problem that will solve provides a wear-resisting resistant valve that erodees, and its maintenance is simple, the noise has been reduced to wear-resisting resistant, the long service life that erodees.
In order to solve the technical problem, an embodiment of the utility model provides a wear-resistant and erosion-resistant valve, which comprises a base, a valve seat assembly, a valve body, an adjusting head, a valve rod, a sleeve, a valve cover and a filling opening, wherein an inlet flow channel is arranged on the valve body;
the sleeve penetrates through the valve body for a certain length along the central axis of the sleeve and towards the base, a flow guide part positioned in the inlet flow channel is formed, and at least one flow guide opening through which a medium flows and is communicated with the inlet flow channel is formed in the side wall of the flow guide part;
the valve seat assembly is positioned between the base and the valve body, a cavity penetrating through the valve seat assembly is formed in the valve seat assembly, and two ends of the cavity are respectively communicated with the flow guide part and the outlet flow channel of the base.
The inlet flow passage comprises a front end inlet flow passage and a rear end inlet flow passage which are communicated with each other; wherein,
the front end inlet runner is linear, and the central axis of the front end inlet runner is vertical to the central axis of the sleeve;
the rear end inlet flow passage is arc-shaped, one end of the rear end inlet flow passage, which is communicated with the flow guide port, is lower than the other end of the front end inlet flow passage, the rear end inlet flow passage deviates from the base, the direction of the base is bent, and the radian included angle formed by bending faces the base.
The central axis of the outlet flow passage and the central axis of the sleeve are the same axis.
The valve seat assembly comprises a valve seat and a lining, wherein the valve seat is internally provided with the cavity, and the lining is embedded with the valve seat; wherein, its orientation of bush exit flow channel's one end is provided with a venturi diffusion mouth, just venturi diffusion mouth is the loudspeaker form and follows the orientation exit flow channel direction upward diameter gradually increases.
The bushing also comprises a flange arranged on the outer surface of the middle part of the bushing, and the flange is connected with the valve body in a sealing mode through an upper gasket and connected with the base in a sealing mode through a lower gasket respectively.
Wherein, the valve seat is made of tungsten carbide, and the lining is made of stainless steel.
Wherein, the sleeve still include with adjust the head and cooperate and be used for the cleanness adjust the sharp-pointed plane of head.
The wear-resistant and scouring-resistant valve further comprises a combined elastic ring arranged between the sleeve and the valve rod; the combined elastic ring comprises a metal inner ring and a non-metal outer ring, and the non-metal outer ring is attached to the outer surface of the side wall of the valve rod.
When the non-metal outer ring is separated from the outer surface of the side wall of the valve rod, the metal inner ring can do tightening movement along the radial direction of the valve rod, so that the non-metal outer ring is always attached to the outer surface of the side wall of the valve rod.
The adjusting head is provided with an inner hole, the valve rod is provided with an inner threaded hole, a bolt penetrates through the inner hole of the adjusting head and is inserted into the inner threaded hole of the valve rod to be in threaded connection with the valve rod, and the adjusting head and the valve rod are further fixed by a positioning pin.
Implement the embodiment of the utility model provides a, following beneficial effect has:
1. in the embodiment of the utility model, because the front inlet runner in the inlet runner is in a straight line shape, the central axis thereof is vertical to the central axis of the outlet runner, and the rear inlet runner is in a large arc shape and is directly communicated with the outlet runner through the cavity of the valve seat component, the whole runner is not provided with a middle cavity, so that the medium can directly flow to the outlet runner without middle detention, and because of the existence of front and back pressure difference, the medium flowing at high speed directly automatically cleans the adjusting head and the valve seat, and the occurrence of blockage is avoided;
2. in the embodiment of the utility model, the inlet flow channel is firstly straight and then curved, so that the flow path of the medium is increased, and the flow speed of the medium is further slowed down, thereby reducing the damage caused by the fact that the flow channel and the flow channel shell are easy to be washed away and penetrate, and prolonging the service life of the flow channel and the flow channel shell;
3. in the embodiment of the utility model, because adopt the valve seat that the tungsten carbide material that is able to bear or endure washing away, wear-resisting makes and have the stainless steel bush that the pliability is good, high strength characteristic, make the valve seat subassembly possess the durable characteristic of able to bear or endure washing away, wear-resisting and high strength, the harm that the medium formed to the valve seat subassembly has been reduced, and because the setting of diffusion mouth on the bush can make the medium diffuse fast and atomize, prevent to form the efflux of gathering and produce very big destructive power, avoid pipeline and annex near the bush export to suffer damage, the life of the pipeline and annex near valve seat subassembly and export runner has been improved;
4. the embodiment of the utility model provides an in, its device simple structure, it is convenient to dismantle to convenient maintenance is maintained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.
Fig. 1 is a schematic cross-sectional structural view of a wear-resistant and erosion-resistant valve provided in an embodiment of the present invention;
FIG. 2 is a partially enlarged view of point A in FIG. 1;
fig. 3 is a schematic sectional view of a connection structure between an adjustment head and a valve rod of the wear-resistant and erosion-resistant valve according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a sleeve in a wear-resistant and erosion-resistant valve according to an embodiment of the present invention;
FIG. 4a is a schematic sectional view taken along line A-A in FIG. 4;
FIG. 4b is an enlarged view of a portion of point C in FIG. 4 a;
FIG. 5 is a partially enlarged view of point B in FIG. 1;
fig. 6 is a schematic plan view of a combined elastic ring in the wear-resistant and erosion-resistant valve according to an embodiment of the present invention;
fig. 7 is a schematic sectional view taken along line B-B in fig. 6.
Wherein: 1-base, 11-outlet flow channel, 2-valve seat component, 20-cavity, 21-valve seat, 22-bushing, 23-venturi diffusion port, 24-flange, 3-valve body, 31-inlet flow channel, 311-front inlet flow channel, 312-rear inlet flow channel, 4-adjusting head, 41-bolt, 42-positioning pin, 5-valve rod, 6-sleeve, 61-flow guide part, 611-flow guide port, 612-sharp plane, 7-valve cover, 8-filling port, 9-upper gasket, 10-lower gasket, 12-combined elastic ring, 121-metal inner ring and 122-nonmetal outer ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, an embodiment of the present invention provides a wear-resistant and erosion-resistant valve, which includes a base 1, a valve seat assembly 2, a valve body 3, an adjusting head 4, a valve rod 5, a sleeve 6, a valve cover 7 and a filling opening 8, wherein the valve rod 5 is matched with the adjusting head 4, central axes of the valve rod 5 and the adjusting head are coincident with a central axis of the valve seat assembly 2 and are both installed in the sleeve 6, the sleeve 6 is clamped and fixed between the valve body 3 and the valve cover 7, and the filling opening 8 is installed in a cavity formed by the valve cover 7 and the valve rod 5; wherein, the valve body 3 is provided with an inlet flow passage 31;
the sleeve 6 penetrates through the valve body 3 along the central axis thereof and towards the base 1 for a certain length to form a flow guide part 61 positioned in the inlet flow channel 31, and the side wall of the flow guide part 61 is provided with at least one flow guide opening 611 for medium to flow through and communicated with the inlet flow channel 31; of course, the opening direction of the flow guiding opening 611 is preferably toward the inlet channel 31, so that the medium is not excessively retained on the outer surface of the sleeve 6, and even one or more flow guiding openings 611 are formed in the flow guiding opening 611 toward the inlet channel 31 and away from the inlet channel 31; it can be understood that the number and size of the diversion ports 61 can be determined by the engineer after calculation according to the actually required flow rate;
the valve seat assembly 2 is positioned between the base 1 and the valve body 3, a cavity 20 penetrating through the valve seat assembly is formed in the valve seat assembly, and two ends of the cavity 20 are respectively communicated with the flow guide part 61 and the outlet flow channel 11 of the base 1; since no intermediate chamber for the flow of the medium is provided in the valve body 2, the medium flows directly through the hollow space 20 of the valve seat assembly 2 to the outlet flow channel 11 without intermediate stagnation.
In order to further increase the flow path of the medium and slow down the flow speed of the medium, thereby reducing the damage caused by that the flow channel and the flow channel shell are easily washed and penetrated, and prolonging the service life of the flow channel and the flow channel shell, the inlet flow channel 31 is set to comprise a front end inlet flow channel 311 and a rear end inlet flow channel 312 which are communicated; wherein, the front inlet channel 311 is linear, and the central axis thereof is vertical to the central axis of the sleeve 6; the rear inlet channel 312 is arc-shaped, one end of the rear inlet channel 312 communicated with the diversion port 61 is lower than the other end of the rear inlet channel 311, the rear inlet channel 312 is bent along the direction departing from the base 1, and the included angle of the radian formed by the bending is towards the base 1. It should be noted that the reference to the fact that one end communicating with the diversion port 61 is lower than the other end communicating with the front end inlet flow passage 311 is a comparison of the height positions of the two ends with respect to the wear-resistant and flush-resistant valve.
In order to facilitate the rapid outflow of the medium, the central axis of the outlet flow channel 11 is coaxial with the central axis of the sleeve 6, so that the medium rapidly flows out along a vertical line direction (i.e. the central axis direction of the valve rod 5), and the stagnation of the medium in the outlet flow channel 11 is reduced.
Because the middle cavity of the valve body 2 is saved, the medium can directly wash the valve seat component 2, wherein the valve seat component 2 comprises a valve seat 21 with a cavity 20 arranged therein and a lining 22 embedded with the valve seat 21, and in order to prolong the service life of the valve seat component 2, the valve seat 21 made of wear-resistant and erosion-resistant integral tungsten carbide and the lining 22 made of stainless steel are adopted in the valve seat component 2. It should be noted that one end of the valve seat 21 should abut against the lower end of the sleeve 6 (i.e. the end facing the base 1) in order to provide wear and flushing resistance.
Further, in order to ensure rapid diffusion and atomization of the media, prevent the formation of a built-up jet and the generation of extreme destructive forces, protect the pipes and fittings near the outlet of the liner 22 from damage, and improve the service life of the pipes and fittings, a venturi diffusion opening 23 is provided in the liner 22 at its end facing the outlet flow channel 11, and the venturi diffusion opening 23 is flared and gradually increases in diameter in the direction towards the outlet flow channel 11. Further, the bush 22 further comprises a rectangular flange 24 arranged on the outer surface of the middle portion of the bush, and the flange 24 is connected with the valve body 3 in a sealing mode through the wound upper gasket 9 and connected with the base 1 in a sealing mode through the wound lower gasket 10 respectively, so that the fact that a medium cannot directly wash the connection transition surface of the flange 24 and the outlet flow channel 11 of the valve body 3 is achieved, and the safety and the service life of the connection surface of the valve seat assembly 2 and the valve body 3 and the base 1 are guaranteed.
In view of valve rod 5 and regulation head 4 and install in sleeve subassembly 6, valve rod 5 is completely isolated with the medium, and the excircle all passes through the case hardening treatment in sleeve 6, and the regulation head 4 with the medium contact adopts whole tungsten carbide material, and it is wear-resisting, resistant erodeing, scrape in order to realize the impurity and the adsorbate of 4 cylinder lateral wall surfaces of regulation head, play the effect of adjusting the head automatically cleaning, sleeve 6 still includes and adjusts head 4 and cooperate and be used for the clean sharp-pointed plane 612 who adjusts head 4. Meanwhile, the adjusting head 4 is formed with an inner hole, the valve rod 5 is formed with an inner threaded hole, the bolt 41 is adopted to penetrate through the inner hole of the adjusting head 4, the inner threaded hole inserted into the valve rod 5 is in threaded connection with the valve rod 5, and in order to further ensure the reliable connection, the adjusting head 4 and the valve rod 5 are further fixed by the positioning pin 42. It can be understood that, by adopting the upper-mounting structure, the sleeve component 6, the valve rod 5, the adjusting head 4 and the like can be removed and replaced on line by removing the valve cover 7, so that the maintenance is convenient, and the maintenance time is shortened.
The wear-resistant and scouring-resistant valve is also provided with a combined elastic ring 12 positioned between the sleeve 6 and the valve rod 5, and the combined elastic ring 12 is matched with the cylindrical side wall surface of the valve rod 5; wherein, combination elastic ring 12 includes metal inner circle 121 and the nonmetal outer lane 122 of high temperature resistance of high strength, and nonmetal outer lane 122 is in the same place with the surface laminating of valve rod 5 lateral wall, makes valve rod 5 when the motion like this, and the debris that valve rod 5 has not scraped yet can be wiped and cleaned automatically to nonmetal outer lane 122, has protected valve rod 5's cleanness, has improved valve rod 5 performance's stability and life.
Once the non-metal outer ring 122 is worn, the non-metal outer ring will be separated from the outer surface of the cylindrical side wall of the valve rod 5, and at this time, the metal inner ring 121 will automatically make a tightening movement in the radial direction toward the valve rod 5, so that the non-metal outer ring 122 is always attached to the outer surface of the side wall of the valve rod 5.
Implement the embodiment of the utility model provides a, following beneficial effect has:
1. in the embodiment of the utility model, because the front inlet runner in the inlet runner is in a straight line shape, the central axis thereof is vertical to the central axis of the outlet runner, and the rear inlet runner is in a large arc shape and is directly communicated with the outlet runner through the cavity of the valve seat component, the whole runner is not provided with a middle cavity, so that the medium can directly flow to the outlet runner without middle detention, and because of the existence of front and back pressure difference, the medium flowing at high speed directly automatically cleans the adjusting head and the valve seat, and the occurrence of blockage is avoided;
2. in the embodiment of the utility model, the inlet flow channel is firstly straight and then curved, so that the flow path of the medium is increased, and the flow speed of the medium is further slowed down, thereby reducing the damage caused by the fact that the flow channel and the flow channel shell are easy to be washed away and penetrate, and prolonging the service life of the flow channel and the flow channel shell;
3. in the embodiment of the utility model, because adopt the valve seat that the tungsten carbide material that is able to bear or endure washing away, wear-resisting makes and have the stainless steel bush that the pliability is good, high strength characteristic, make the valve seat subassembly possess the durable characteristic of able to bear or endure washing away, wear-resisting and high strength, the harm that the medium formed to the valve seat subassembly has been reduced, and because the setting of diffusion mouth on the bush can make the medium diffuse fast and atomize, prevent to form the efflux of gathering and produce very big destructive power, avoid pipeline and annex near the bush export to suffer damage, the life of the pipeline and annex near valve seat subassembly and export runner has been improved;
4. the embodiment of the utility model provides an in, its device simple structure, it is convenient to dismantle to convenient maintenance is maintained.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims (10)

1. A wear-resistant and scouring-resistant valve comprises a base (1), a valve seat assembly (2), a valve body (3), an adjusting head (4), a valve rod (5), a sleeve (6), a valve cover (7) and a filling opening (8), and is characterized in that an inlet flow channel (31) is arranged on the valve body (3);
the sleeve (6) penetrates through the valve body (3) along the central axis of the sleeve and in a direction towards the base (1) for a certain length to form a flow guide part (61) positioned in the inlet flow channel (31), and the side wall of the flow guide part (61) is provided with at least one flow guide opening (611) through which a medium flows and is communicated with the inlet flow channel (31);
the valve seat assembly (2) is positioned between the base (1) and the valve body (3), a cavity (20) penetrating through the valve seat assembly (2) is formed in the valve seat assembly, and two ends of the cavity (20) are respectively communicated with the flow guide opening 611 of the flow guide part (61) and the outlet flow channel (11) of the base (1).
2. A wear and flush resistant valve according to claim 1, wherein said inlet flow passage (31) comprises a leading inlet flow passage (311) and a trailing inlet flow passage (312) in communication; wherein,
the front end inlet flow passage (311) is linear, and the central axis of the front end inlet flow passage is vertical to the central axis of the sleeve (6);
rear end inlet channel (312) are the arc form, its with the one end that water conservancy diversion mouth (61) are linked together be less than with the other end that front end inlet channel (311) are linked together, just rear end inlet channel (312) are along deviating from base (1) direction is crooked, and the radian contained angle that the bending formed is towards base (1).
3. A wear and flush resistant valve according to claim 2, characterized in that the central axis of the outlet flow channel (11) is coaxial with the central axis of the sleeve (6).
4. A wear-resistant and flush-resistant valve according to claim 1, characterized in that the valve seat assembly (2) comprises a valve seat (21) in which the cavity (20) is provided and a bush (22) in which the valve seat (21) is embedded; wherein, bush (22) orientation the one end of export runner (11) is provided with a venturi diffusion mouth (23), just venturi diffusion mouth (23) is the loudspeaker form and along orientation the diameter gradually increases in export runner (11) direction.
5. A wear-resistant and flush-resistant valve according to claim 4, characterized in that the bushing (22) further comprises a flange (24) arranged on the outer surface of its middle part, the flange (24) being sealingly connected to the valve body (3) by an upper gasket (9) and to the seat (1) by a lower gasket (10), respectively.
6. A wear-resistant and flush-resistant valve according to claim 5, characterized in that the valve seat (21) is made of tungsten carbide and the bushing (22) is made of stainless steel.
7. A wear-resistant and flush-resistant valve according to claim 1, characterized in that the sleeve (6) further comprises a sharp-edged flat (612) cooperating with the adjusting head (4) and for cleaning the adjusting head (4).
8. A wear-resistant and flush-resistant valve according to claim 1, characterized in that it further comprises a combined elastic ring (12) arranged between said sleeve (6) and said valve stem (5); the combined elastic ring (12) comprises a metal inner ring (121) and a non-metal outer ring (122), and the non-metal outer ring (122) is attached to the outer surface of the side wall of the valve rod (5).
9. A wear and flush resistant valve according to claim 8, characterized in that when the non-metallic outer ring (122) is detached from the outer surface of the side wall of the valve stem (5), the inner metallic ring (121) will make a tightening movement in a radial direction towards the valve stem (5) so that the non-metallic outer ring (122) always fits together with the outer surface of the side wall of the valve stem (5).
10. A wear and flush resistant valve according to claim 1, wherein said adjustment head (4) is formed with an internal bore, said valve stem (5) is formed with an internally threaded bore, a bolt (41) is inserted through the internal bore of said adjustment head (4) and into the internally threaded bore of said valve stem (5) to threadedly engage said valve stem (5), and a locating pin (42) is used to further secure said adjustment head (4) and said valve stem (5) together.
CN201420496065.5U 2014-08-29 2014-08-29 A kind of wear-resisting resistance to erosion valve Active CN204061923U (en)

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Application Number Priority Date Filing Date Title
CN201420496065.5U CN204061923U (en) 2014-08-29 2014-08-29 A kind of wear-resisting resistance to erosion valve

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Application Number Priority Date Filing Date Title
CN201420496065.5U CN204061923U (en) 2014-08-29 2014-08-29 A kind of wear-resisting resistance to erosion valve

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214352A (en) * 2014-08-29 2014-12-17 超达阀门集团股份有限公司 Wear-resistant and scour-resistant valve
CN108105407A (en) * 2017-12-26 2018-06-01 福斯流体控制(苏州)有限公司 High-performance abrasion-resisting angle type control valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214352A (en) * 2014-08-29 2014-12-17 超达阀门集团股份有限公司 Wear-resistant and scour-resistant valve
CN108105407A (en) * 2017-12-26 2018-06-01 福斯流体控制(苏州)有限公司 High-performance abrasion-resisting angle type control valve

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