CN112222773B - Preparation process of wear-resistant sliding plate gate valve - Google Patents
Preparation process of wear-resistant sliding plate gate valve Download PDFInfo
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- CN112222773B CN112222773B CN202011026384.6A CN202011026384A CN112222773B CN 112222773 B CN112222773 B CN 112222773B CN 202011026384 A CN202011026384 A CN 202011026384A CN 112222773 B CN112222773 B CN 112222773B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 80
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000012856 packing Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 32
- 238000007514 turning Methods 0.000 claims description 30
- 238000005253 cladding Methods 0.000 claims description 27
- 238000000227 grinding Methods 0.000 claims description 26
- 239000007921 spray Substances 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 12
- 238000003754 machining Methods 0.000 claims description 12
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 12
- 238000004372 laser cladding Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 238000005553 drilling Methods 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000005422 blasting Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010866 blackwater Substances 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention relates to a preparation process of a wear-resistant slide plate gate valve, which is characterized by comprising the following steps of: s1, blank making; s2 processing the valve body; s3, processing a valve cover; s4 processing a clamping plate; s5, processing the sliding plate; s6, processing a sealing plate; s7 processing the valve rod; s8: assembling according to a drawing; the invention has the beneficial effects that: the sealing surface of the valve is not easy to wear and drop, the wear of the valve rod to the valve packing is greatly reduced, and the service life of the valve is prolonged.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a preparation process of a wear-resistant sliding plate gate valve.
Background
In the petroleum refining industry, the problems that a valve used under the working condition of heavy oil and residual oil medium containing a solid particle catalyst is blocked at high temperature, a sealing surface is easy to be damaged by pulling, impurities are easy to deposit at the lower end of a middle cavity of the valve, so that the valve cannot be normally closed and the like exist, and the problems that the medium of the middle cavity of the valve is coked and the sealing surface is easy to erode and the like frequently occur under the working conditions of media such as coal water slurry, black water, grey water and the like in the coal chemical industry and the working condition of cutting off polypropylene powder in the polycrystalline silicon industry.
The investigation finds that the working conditions such as powder or slurry containing solid particles at present select flat gate valve and sliding plate valve more, but some service problems all appear, for the gate valve, when being used for the working conditions such as powder or slurry containing solid particles, because the gate valve is in the open state (the structure that does not have the water conservancy diversion hole) or the switching process (the structure that takes the water conservancy diversion hole), the medium gets into the valve lumen easily, cause the valve lumen material to pile up easily or the lumen medium condenses, cause the problem that the valve can't be opened and closed, when the medium is collected in the lumen, need the user to park and tear the valve open and wash, manpower and materials have been wasted, still influence production, even the valve has the blowoff hole, the medium is also difficult to concentrate blowoff hole department, difficult to wash clean. Meanwhile, the sealing surface between the valve seat and the valve plate of the gate valve is narrow, and sealing failure can be caused when the sealing surface is damaged a little, so that the service life is short; for the sliding plate valve, although the sealing generated between the clamping block and the sliding plate of the sliding plate valve can prevent solid particle media or impurities from entering the cavity of the valve, when the valve is closed, the spring is difficult to provide enough minimum sealing specific pressure to realize good sealing of gas or liquid media due to the fact that the sealing surface between the clamping block and the sliding plate is too wide. Meanwhile, the conventional sliding plate valve has the phenomenon that the valve is locked because the valve internal part is heated and expanded at high temperature,
through the above analysis of advantages and disadvantages of the gate valve and the slide plate valve, the applicant develops a wear-resistant slide plate gate valve for harsh working conditions which simultaneously solves the problem of unsuitability of the gate valve and the slide plate valve under some special harsh working conditions by combining the structural advantages of the slide plate valve and the gate valve, wherein the slide plate gate valve comprises a valve body, a valve cover connected with the valve body, a valve rod arranged above the valve cover and an actuator connected with the valve rod, two parallel clamping plates are arranged in the valve body, an inner hole is arranged on each clamping plate, a slide plate connected with the valve rod is arranged between the two clamping plates, and a flow guide hole capable of being communicated with the inner hole of each clamping plate is arranged on each slide plate;
because the sealed face of slide and splint of slide gate valve is broad, need the flatness and the roughness of the sealed face of strict control to realize effective sealing, the processing degree of difficulty is great, in addition in order that the valve can realize good sealing under the operating mode that contains solid medium and have the erodeing, the sealed face of slide, splint, closing plate all need carry out special hardening treatment, both need guarantee that sealed face has good leakproofness and guarantee that the stereoplasm alloy layer has better cohesion, in order to guarantee the sealed between two slides, need weld a section bellows between two slides, the requirement to technology is higher during the welding.
Disclosure of Invention
The technical problem to be solved by the present invention is to solve the above-mentioned deficiencies of the prior art,
provides a preparation process of a wear-resistant slide plate gate valve.
In order to achieve the purpose, the invention provides the following technical scheme: the preparation process of the wear-resistant sliding plate gate valve is characterized by comprising the following steps of:
s1 blank making: respectively casting a valve body blank, a valve cover blank, a clamping plate blank and a sliding plate blank according to the designed sizes, and forging a sealing plate blank and a valve rod blank for later use;
s2 processing the valve body:
(1) turning the two ends of the valve body blank into flange-shaped shapes to form an A-end flange and a B-end flange; (2) boring a C-end flange on one side of the middle part of the valve body;
(3) respectively drilling a flange hole on the A end flange, the B end flange and the C end flange;
(4) then turning the size of the matching position of the middle part of the valve body and the clamping plate;
(5) a neck flange is welded at the bottom;
(6) polishing;
s3 processing of a valve cover:
(1) turning one end of the valve cover blank out of a D end matched with the C end of the valve body;
(2) welding the inverted seal;
(3) turning the other end of the sealing part and the valve cover opposite to the end D as required, wherein the end is an end E;
(4) drilling connecting holes at two sides of the end D and the end E;
(5) tapping the connecting hole at the end E;
(6) polishing;
(7) grinding the sealed part;
s4 processing of splints:
(1) forming an F-end outer circle as a reference by the lathing plate blank;
(2) roughly turning the excircle of the end F to form a G-end plane and a sealing surface cladding groove;
(3) carrying out laser cladding on the cladding groove;
(4) turning a G end plane, a cladding groove and an inner hole;
(5) covering the cladding groove to perform shot blasting on the G-end plane;
(6) covering the cladding groove to perform supersonic spray welding on the G end plane;
(7) grinding the G end plane;
s5 processing of the sliding plate:
(1) boring an H end plane, an I end plane, a runner hole, a sealing plate groove and a corrugated pipe groove on the blank of the sliding plate;
(2) drilling a spring hole;
(3) covering the flow passage hole, the sealing plate groove and the corrugated pipe groove, and then performing shot blasting on the H-end surface and the I-end surface;
(4) covering the flow passage hole, the sealing plate groove and the corrugated pipe groove, and then carrying out supersonic spray welding on the planes of the H end and the I end;
(5) grinding the I end face;
s6 processing of a sealing plate:
(1) roughly turning the outer circle, two end planes and a cladding area of the sealing plate blank;
(2) carrying out laser cladding in a cladding area;
(3) finely turning the excircle, two end planes and a cladding area;
(4) grinding a cladding area;
s7 processing the valve rod:
(1) roughly turning the outer circle of the valve rod;
(2) milling the head of the valve rod;
(3) t-shaped threads are lathed at the head part of the valve rod;
(4) finely turning the outer circle;
(5) reshaping crystals on the surface of the valve rod;
s8: and (5) assembling according to the drawing.
The preparation process of the wear-resistant slide plate gate valve can be further set as follows: the machining of the clamping plate at S4, the machining of the sliding plate at S5 and the machining of the sealing plate at S6 further comprise a matching grinding step, specifically, the matching grinding of the clamping plate, the sealing plate and the sliding plate, the matching grinding of the sliding plate and the clamping plate, and the matching grinding of the sealing plate and the clamping plate.
The preparation process of the wear-resistant slide plate gate valve can be further set as follows: s3 machining the valve cover further includes welding a necked flange to a side of the valve cover prior to grinding.
The preparation process of the wear-resistant slide plate gate valve can be further set as follows: the supersonic spray welding in the S4 processing splint and the S5 processing slide plate is supersonic spray welding of a tungsten carbide alloy layer.
The preparation process of the wear-resistant slide plate gate valve can be further set as follows: the laser cladding in the S4 processing clamping plate and the S6 processing sealing plate is a laser cladding nickel-based tungsten carbide process.
The preparation process of the wear-resistant slide plate gate valve can be further set as follows: s8 still include in the assembly when packing into the slide with the closing plate, place compression spring and welding bellows between two closing plates, specifically do:
(1) a compression spring is placed in the spring hole, and a corrugated pipe is placed in the corrugated pipe groove;
(2) inserting two round rods into the through holes of the springs for positioning, and enabling the end part of the corrugated pipe to be tightly attached to the side wall of the sliding plate to be welded by an argon arc welding machine;
(3) after welding, placing a dustproof sleeve for protecting the corrugated pipe in the corrugated pipe groove, and welding after the dustproof sleeve is folded;
(4) after the corrugated pipe and the dustproof sleeve are welded, the spring and the sealing plate at the lower end are also arranged in the sliding plate, and the sliding plate and the sealing plate are clamped by the clamp, so that the spring and the corrugated pipe are in a compressed state.
By adopting the technical scheme, because the sealing surfaces of the sliding plate and the clamping plate of the sliding plate gate valve are wide, the flatness and the roughness of the sealing surfaces are required to be strictly controlled to realize effective sealing, the processing difficulty is high, in addition, in order to realize good sealing of the valve under the working conditions of containing solid media and scouring, the sealing surfaces of the sliding plate, the clamping plate and the sealing plate are required to be specially hardened, not only is the good sealing performance of the sealing surfaces ensured, but also the good bonding force of a hard alloy layer is ensured, and in order to ensure the sealing between the two sliding plates, a corrugated pipe is required to be welded between the two sliding plates;
the tungsten carbide alloy layer of supersonic spray welding has higher hardness and better wear resistance, but the tungsten carbide alloy layer of supersonic spray welding is thinner (generally about 0.2 mm-0.3 mm), has higher hardness and is not easy to generate plastic deformation, if the pressure is larger, the tungsten carbide alloy layer can generate cracks or fall off when the base material slightly deforms, the sealing surface of the sliding plate is wider, and the specific pressure of the seal is relatively smaller, so the hard alloy layer on the sealing surface is not easy to generate cracks or fall off due to the pressure, the supersonic spray welding process can be adopted, but because the area of the annular sealing surface of the sealing plate is smaller, a medium can generate a larger medium thrust to the sealing plate in a high-pressure state, the specific pressure of the sealing surface of the sealing plate and the local sealing surface of the clamping plate contacted with the sealing surface of the valve plate is larger, if the sealing surface is hardened by adopting the supersonic spray welding process, the hard alloy layer is easy to crack or fall off due to over-high pressure, and the sharp corner at the position of the flow channel of the clamping plate is easy to have stress concentration to cause the falling off of the hard alloy layer, so that the sealing surface of the sealing plate and the local sealing surface of the clamping plate contacted with the sealing surface of the valve plate also adopt the process of laser cladding of nickel-based tungsten carbide, thereby increasing the allowable specific pressure and the bonding force of the sealing surface;
the valve comprises a valve body, a valve rod, a valve core, a valve plug, a valve rod, a valve plug, a valve rod, a valve plug and a valve core.
The invention has the beneficial effects that: the sealing surface of the valve is not easy to wear and drop, the wear of the valve rod to the valve packing is greatly reduced, and the service life of the valve is prolonged.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural diagram of a gate valve with a slide plate according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a valve body according to an embodiment of the invention.
Fig. 3 is a schematic structural view of a valve cover according to an embodiment of the invention.
Fig. 4 is a schematic view of a splint structure according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a slide board according to an embodiment of the invention.
Fig. 6 is a schematic structural view of a sealing plate according to an embodiment of the present invention.
FIG. 7 is a schematic view of a valve stem configuration according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, the slide gate valve is shown in a schematic structural view: the slide plate gate valve comprises a valve body 1, a valve cover 2 connected with the valve body 1, a valve rod 3 arranged above the valve cover 2 and an actuator 4 connected with the valve rod 3, wherein two parallel clamping plates 5 are arranged in the valve body 1, inner holes are formed in the clamping plates 5, a slide plate 6 connected with the valve rod 3 is arranged between the two clamping plates 5, inner hole flow guide holes capable of being connected with the clamping plates 5 are formed in the slide plate 6, and a sealing plate 7 is assembled in the slide plate 6;
referring to fig. 2-7:
the preparation process provided by the invention comprises the following steps:
s1 blank making: respectively casting a valve body 1 blank, a valve cover 2 blank, a clamping plate 5 blank and a sliding plate 6 blank according to the designed sizes, and forging a sealing plate 7 blank and a valve rod 3 blank for later use;
s2 processing the valve body:
(1) turning the two ends of the blank of the valve body 1 into flange-shaped shapes to form an A-end flange and a B-end flange; (2) boring a C-end flange on one side of the middle part of the valve body 1;
(3) respectively drilling a flange hole on the A end flange, the B end flange and the C end flange;
(4) then turning the size of the matching position of the middle part of the valve body and the clamping plate;
(5) a neck flange 11 is welded at the bottom;
(6) polishing;
s3 processing of a valve cover:
(1) turning one end of the blank of the valve cover 2 out of a D end matched with the C end of the valve body;
(2) welding the inverted seal 21;
(3) turning the other end of the position 21 and the valve cover 2 opposite to the end D, wherein the end is an end E;
(4) drilling connecting holes at two sides of the end D and the end E;
(5) tapping the connecting hole at the end E;
(6) polishing;
(7) grinding the position of the back seal 21;
s4 processing of splints:
(1) the rough part of the clamping plate 5 forms an F end excircle as a reference;
(2) roughly turning the excircle of the clamping end F to form a G-end plane and a sealing surface cladding groove 51;
(3) the cladding groove 51 is subjected to a laser cladding nickel-based tungsten carbide process;
(4) turning a G end plane, a cladding groove 51 and an inner hole;
(5) covering the cladding groove 51 to perform shot blasting on the G end plane;
(6) covering the cladding groove 51, and performing supersonic spray welding on a tungsten carbide alloy layer on the G end plane;
(7) grinding the G end plane;
s5 processing of the sliding plate:
(1) boring an H end plane, an I end plane, a flow passage hole 61, a sealing plate groove 62 and a corrugated pipe groove 63 on a blank of the sliding plate 6;
(2) drilling a spring hole 64;
(3) covering the flow passage hole 61, the sealing plate groove 62 and the corrugated pipe groove 63, and then performing shot blasting on the H end surface and the I end surface;
(4) covering the flow passage hole 61, the sealing plate groove 62 and the corrugated pipe groove 63, and then carrying out supersonic spray welding on tungsten carbide alloy layers on the planes of the H end and the I end;
(5) grinding the I end face;
s6 processing of a sealing plate:
(1) roughly turning the outer circle, two end planes and a cladding area 71 of the sealing plate 7 blank;
(2) performing a laser cladding nickel-based tungsten carbide process in a cladding area 71;
(3) finely turning an excircle, two end planes and a cladding area 71;
(4) grinding the cladding area 71;
s7 processing the valve rod:
(1) roughly turning the outer circle of the valve rod 3;
(2) milling the valve stem head 31;
(3) t-shaped threads 32 are turned on the valve rod head 31;
(4) finely turning the outer circle;
(5) crystal remodeling is carried out on the surface of the valve rod 3;
s8: assembling according to a drawing;
the machining of the clamping plate 5 at S4, the machining of the sliding plate 6 at S5 and the machining of the sealing plate 7 at S6 further comprise a matching grinding step, specifically, the matching grinding of the clamping plate 5, the sealing plate 7 and the sliding plate 6, the matching grinding of the sliding plate 6 and the clamping plate 6, and the matching grinding of the sealing plate 7 and the clamping plate 5 are carried out;
s3, before polishing, the process of machining the valve cover 2 further comprises the step of welding a neck flange 22 on the side surface of the valve cover 2;
when the sealing plate 7 is installed in the sliding plate 6 in the assembly of S8, the method further includes placing the compression spring 72 and the welding bellows 73 between the two sealing plates 7, specifically:
(1) the compression spring 72 is placed in the spring hole 64, and the corrugated pipe 73 is placed in the corrugated pipe groove 63;
(2) two round rods are inserted into the spring holes 64 for positioning, so that the end part of the corrugated pipe 73 is tightly attached to the side wall of the sliding plate 6 and is welded by an argon arc welding machine;
(3) after welding, a dust boot for protecting the bellows 73 is placed in the bellows groove 63 and is then welded.
Claims (7)
1. The preparation process of the wear-resistant sliding plate gate valve is characterized by comprising the following steps of:
s1 blank making: respectively casting a valve body blank, a valve cover blank, a clamping plate blank and a sliding plate blank according to the designed sizes, and forging a sealing plate blank and a valve rod blank for later use;
s2 processing the valve body:
(1) turning the two ends of the valve body blank into flange-shaped shapes to form an A-end flange and a B-end flange; (2) boring a C-end flange on one side of the middle part of the valve body;
(3) respectively drilling a flange hole on the A end flange, the B end flange and the C end flange;
(4) turning the size of the matching position of the middle part of the valve body and the clamping plate;
(5) a neck flange is welded at the bottom;
(6) polishing;
s3 processing of a valve cover:
(1) turning one end of the valve cover blank out of a D end matched with the C end of the valve body;
(2) welding the inverted seal;
(3) turning the other end of the sealing part and the valve cover opposite to the end D as required, wherein the end is an end E;
(4) drilling connecting holes at two sides of the end D and the end E;
(5) tapping the connecting hole at the end E;
(6) polishing;
(7) grinding the sealed part;
s4 processing of splints:
(1) forming an F-end outer circle as a reference by the lathing plate blank;
(2) roughly turning the excircle of the end F to form a G-end plane and a sealing surface cladding groove;
(3) carrying out laser cladding on the cladding groove;
(4) turning a G end plane, a cladding groove and an inner hole;
(5) covering the cladding groove to perform shot blasting on the G-end plane;
(6) covering the cladding groove to perform supersonic spray welding on the G end plane;
(7) grinding the G end plane;
s5 processing of the sliding plate:
(1) boring an H end plane, an I end plane, a runner hole, a sealing plate groove and a corrugated pipe groove on the blank of the sliding plate;
(2) drilling a spring hole;
(3) covering the flow passage hole, the sealing plate groove and the corrugated pipe groove, and then performing shot blasting on the H-end surface and the I-end surface;
(4) covering the flow passage hole, the sealing plate groove and the corrugated pipe groove, and then carrying out supersonic spray welding on the planes of the H end and the I end;
(5) grinding the I end face;
s6 processing of a sealing plate:
(1) roughly turning the outer circle, two end planes and a cladding area of the sealing plate blank;
(2) carrying out laser cladding in a cladding area;
(3) finely turning the excircle, two end planes and a cladding area;
(4) grinding a cladding area;
s7 processing the valve rod:
(1) roughly turning the outer circle of the valve rod;
(2) milling the head of the valve rod;
(3) t-shaped threads are lathed at the head part of the valve rod;
(4) finely turning the outer circle;
(5) reshaping crystals on the surface of the valve rod;
s8: and (5) assembling according to the drawing.
2. The process for preparing a wear-resistant slide gate valve according to claim 1, wherein: the machining of the clamping plate at S4, the machining of the sliding plate at S5 and the machining of the sealing plate at S6 further comprise a matching grinding step, specifically, the matching grinding of the clamping plate, the sealing plate and the sliding plate, the matching grinding of the sliding plate and the clamping plate, and the matching grinding of the sealing plate and the clamping plate.
3. The process of manufacturing a wear resistant slide gate valve according to claim 1 or 2, wherein: s3 machining the valve cover further includes welding a necked flange to a side of the valve cover prior to grinding.
4. The process for preparing a wear-resistant slide gate valve according to claim 3, wherein: the supersonic spray welding in the S4 processing splint and the S5 processing slide plate is supersonic spray welding of a tungsten carbide alloy layer.
5. The process for preparing a wear-resistant slide gate valve according to claim 3, wherein: the laser cladding in the S4 processing clamping plate and the S6 processing sealing plate is a laser cladding nickel-based tungsten carbide process.
6. The process for preparing a wear-resistant slide gate valve according to claim 4, wherein: s8 still include in the assembly when packing into the slide with the closing plate, place compression spring and welding bellows between two closing plates, specifically do:
(1) a compression spring is placed in the spring hole, and a corrugated pipe is placed in the corrugated pipe groove;
(2) inserting two round rods into the through holes of the springs for positioning, and enabling the end part of the corrugated pipe to be tightly attached to the side wall of the sliding plate to be welded by an argon arc welding machine;
(3) after welding, placing a dustproof sleeve for protecting the corrugated pipe in the corrugated pipe groove, and welding after the dustproof sleeve is folded;
(4) after the corrugated pipe and the dustproof sleeve are welded, the spring and the sealing plate at the lower end are also arranged in the sliding plate, and the sliding plate and the sealing plate are clamped by the clamp, so that the spring and the corrugated pipe are in a compressed state.
7. A wear resistant slide gate valve made according to any of the preceding claims 1 to 6, wherein: including the valve body, the valve gap of being connected with the valve body, locate the valve rod of valve gap top and the executor of being connected with the valve rod, be equipped with two parallel arrangement's splint in the valve body, be equipped with medium circulation entry and medium circulation export on the splint, be equipped with the slide of being connected with the valve rod between two splint, be equipped with on the slide and can enter the flow guide hole that the export switched on with medium circulation and medium circulation, be equipped with the closing plate in the slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026384.6A CN112222773B (en) | 2020-09-25 | 2020-09-25 | Preparation process of wear-resistant sliding plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026384.6A CN112222773B (en) | 2020-09-25 | 2020-09-25 | Preparation process of wear-resistant sliding plate gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112222773A CN112222773A (en) | 2021-01-15 |
| CN112222773B true CN112222773B (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011026384.6A Active CN112222773B (en) | 2020-09-25 | 2020-09-25 | Preparation process of wear-resistant sliding plate gate valve |
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| CN202381723U (en) * | 2011-12-06 | 2012-08-15 | 苏州安特威阀门有限公司 | Sliding plate valve |
| CN202834141U (en) * | 2012-10-26 | 2013-03-27 | 浙江联大阀门有限公司 | Fireproof type double gate plate gate valve |
| CN103939634A (en) * | 2014-04-29 | 2014-07-23 | 昆山维萨阀门有限公司 | Valve seat structure for gate valve |
| CN104315175A (en) * | 2014-10-16 | 2015-01-28 | 余金海 | Gate valve and manufacturing process thereof |
| CN204239783U (en) * | 2014-11-20 | 2015-04-01 | 浙江联大阀门有限公司 | A kind of plate valve of tape guide plate |
| CN208348545U (en) * | 2018-06-15 | 2019-01-08 | 浙江石化阀门有限公司 | Abrasion-proof hard seal gate valve |
| CN110280982A (en) * | 2019-08-15 | 2019-09-27 | 玉环市大众铜业制造有限公司 | A kind of valve manufacture technique |
| CN111237489A (en) * | 2020-03-20 | 2020-06-05 | 成都乘风阀门有限责任公司 | Flat gate valve and forming method thereof |
-
2020
- 2020-09-25 CN CN202011026384.6A patent/CN112222773B/en active Active
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| DE3545266C2 (en) * | 1985-12-20 | 1989-01-05 | B + S Metalpraecis Gesellschaft Fuer Metallformgebung Mbh, 4650 Gelsenkirchen, De | |
| CN1464949A (en) * | 2001-08-01 | 2003-12-31 | 凡利安股份有限公司 | Gate valve with delayed retraction of counter plate |
| CN202381723U (en) * | 2011-12-06 | 2012-08-15 | 苏州安特威阀门有限公司 | Sliding plate valve |
| CN202834141U (en) * | 2012-10-26 | 2013-03-27 | 浙江联大阀门有限公司 | Fireproof type double gate plate gate valve |
| CN103939634A (en) * | 2014-04-29 | 2014-07-23 | 昆山维萨阀门有限公司 | Valve seat structure for gate valve |
| CN104315175A (en) * | 2014-10-16 | 2015-01-28 | 余金海 | Gate valve and manufacturing process thereof |
| CN204239783U (en) * | 2014-11-20 | 2015-04-01 | 浙江联大阀门有限公司 | A kind of plate valve of tape guide plate |
| CN208348545U (en) * | 2018-06-15 | 2019-01-08 | 浙江石化阀门有限公司 | Abrasion-proof hard seal gate valve |
| CN110280982A (en) * | 2019-08-15 | 2019-09-27 | 玉环市大众铜业制造有限公司 | A kind of valve manufacture technique |
| CN111237489A (en) * | 2020-03-20 | 2020-06-05 | 成都乘风阀门有限责任公司 | Flat gate valve and forming method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112222773A (en) | 2021-01-15 |
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Denomination of invention: Preparation process of a wear-resistant slide gate valve Effective date of registration: 20230117 Granted publication date: 20220104 Pledgee: Zhejiang Ruian Rural Commercial Bank Co.,Ltd. Plaza Science and Technology Branch Pledgor: ZHEJIANG LIANDA VALVE Co.,Ltd. Registration number: Y2023110000030 |
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Granted publication date: 20220104 Pledgee: Zhejiang Ruian Rural Commercial Bank Co.,Ltd. Plaza Science and Technology Branch Pledgor: ZHEJIANG LIANDA VALVE Co.,Ltd. Registration number: Y2023110000030 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Preparation process of a wear-resistant sliding plate gate valve Granted publication date: 20220104 Pledgee: Zhejiang Ruian Rural Commercial Bank Co.,Ltd. Plaza Science and Technology Branch Pledgor: ZHEJIANG LIANDA VALVE Co.,Ltd. Registration number: Y2024980004162 |