CN109854775B - Interference-free guide valve core assembly and friction-free ball valve - Google Patents
Interference-free guide valve core assembly and friction-free ball valve Download PDFInfo
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- CN109854775B CN109854775B CN201910084263.8A CN201910084263A CN109854775B CN 109854775 B CN109854775 B CN 109854775B CN 201910084263 A CN201910084263 A CN 201910084263A CN 109854775 B CN109854775 B CN 109854775B
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- 238000007789 sealing Methods 0.000 claims description 37
- 238000001514 detection method Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000008358 core component Substances 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The invention provides an interference-free guide valve core assembly and a friction-free ball valve, which comprise wedge-shaped valve cores, wherein a pair of closing wedge-shaped side surfaces are respectively provided with a closing valve clack, the middle positions of the pair of closing wedge-shaped side surfaces are respectively provided with a closing guide key along the axial direction, and each closing valve clack is provided with a closing guide groove along the axial direction; the two sides of each opening valve clack are respectively provided with an opening guide clamping groove along the axial direction. The non-interference guide valve core component is matched with the opening guide clamping rail on the opening valve clack through the continuous opening guide clamping grooves arranged on the two sides of the flow passage on the side face of the opening wedge, the flow passage can not intercept the rail, and the guide valve core component is not interfered with the opening guide clamping rail, so that the wedge valve core is more stable when axially lifting and moving relative to the opening valve clack.
Description
Technical Field
The invention belongs to the field of valves, relates to a ball valve, and in particular relates to a non-interference guide valve core assembly and a friction-free ball valve.
Background
At present, the ball valve of the finished oil pipe is mainly used for oil product switching, ball receiving and transmitting cylinders, station entering and exiting and other parts. In the actual production process, the pipeline conveying medium contains various impurities, and in the switching process of the ball valve, the ball body and the valve seat are always in close contact, so that the sealing surface is easily scratched by the harder impurities, the sealing is invalid, and the ball valve is leaked.
In the switching action of the common ball valve, the valve rod is easy to be blocked, the operation torque is large, the valve core and the valve seat are mutually worn, leakage is easy to occur, and the use effect is poor.
Secondly, conventional ball valves are unable to leak hunting on line in the use. When the valve breaks down, the valve must be detached from the pipeline to carry out maintenance and detection, the online maintainability is poor, and great inconvenience is brought to the use of the product of the user.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a non-interference guide valve core assembly and a friction-free ball valve, which can solve the technical problem that the conventional ball valve is easy to leak inwards.
In order to solve the technical problems, the invention adopts the following technical scheme:
The non-interference guide valve core assembly comprises a wedge-shaped valve core, wherein one pair of oppositely arranged wedge-shaped side surfaces of four side surfaces of the wedge-shaped valve core are a pair of closing wedge-shaped side surfaces, the other pair of oppositely arranged wedge-shaped side surfaces of the four side surfaces of the wedge-shaped valve core are a pair of opening wedge-shaped side surfaces, and the closing wedge-shaped side surfaces are adjacent to the opening wedge-shaped side surfaces;
the valve seat is characterized in that a pair of closing wedge-shaped side surfaces are respectively provided with a closing valve clack, the middle positions of the pair of closing wedge-shaped side surfaces are respectively provided with a closing guide key along the axial direction, each closing valve clack is provided with a closing guide groove along the axial direction, and the closing valve clacks are arranged on the closing wedge-shaped side surfaces through the cooperation of the closing guide keys and the closing guide grooves;
The valve comprises a pair of opening wedge-shaped side surfaces, a pair of opening guide clamping grooves, a pair of opening guide clamping rails and a pair of opening guide clamping rails, wherein the opening valve clacks are respectively arranged on the pair of opening wedge-shaped side surfaces, the two side positions of the pair of opening wedge-shaped side surfaces are respectively provided with the opening guide clamping grooves along the axial direction, and the opening valve clacks are arranged on the opening wedge-shaped side surfaces through the cooperation of the opening guide clamping grooves and the opening guide clamping rails;
the wedge-shaped valve core is radially provided with a wedge-shaped valve core runner which penetrates through a pair of opening wedge-shaped side surfaces, and the wedge-shaped valve core runner is positioned between a pair of opening guide clamping grooves; the valve clack is provided with a valve clack runner coaxially and correspondingly arranged with the wedge-shaped valve core runner.
The invention also protects a friction-free ball valve, which comprises a valve body, wherein a non-interference guide valve core assembly is arranged in the valve body, a valve rod is arranged on the non-interference guide valve core assembly, and the valve rod comprises an upper valve rod and a lower valve rod which are coaxially arranged; the upper part of the valve body is provided with an upper valve cover, and the lower part of the valve body is provided with a lower valve cover;
The non-interference guide valve core component is adopted as the non-interference guide valve core component;
One end of an upper valve rod is arranged at the top of the wedge-shaped valve core, and the other end of the upper valve rod penetrates through the upper valve cover and extends out of the upper valve cover; one end of a lower valve rod is arranged at the bottom of the wedge-shaped valve core, and the other end of the lower valve rod is arranged in a lifting cavity of the lower valve cover;
The valve body is provided with a valve body flow passage coaxially and correspondingly arranged with the wedge-shaped valve core flow passage;
the top of the closing valve clack and the top of the opening valve clack are arranged in clearance fit with an upper valve cover, the bottom of the closing valve clack and the bottom of the opening valve clack are arranged in clearance fit with a lower valve cover, and the upper valve cover and the lower valve cover are used for axially limiting the closing valve clack and the opening valve clack;
The closing valve clack is in sealing contact with the inner wall of the valve body around the valve body flow passage.
The invention also has the following distinguishing technical characteristics:
the sealing rubber ring is arranged at the contact position of the closing valve clack and the inner wall of the valve body.
An upper shaft sleeve, a graphite packing layer and a packing gland are sequentially arranged between the upper valve cover and the upper valve rod from inside to outside; a lower shaft sleeve is arranged between the lifting cavity and the lower valve rod.
The sealing gasket and the O-shaped sealing ring are arranged between the upper valve cover and the valve body, and the sealing gasket and the O-shaped sealing ring are arranged between the lower valve cover and the valve body.
The valve body is provided with a plurality of detection holes.
The upper part of the closing valve clack is provided with a positioning hole.
The lower valve cover is provided with a drain hole which penetrates through the lower valve cover, and the drain hole is provided with a drain valve.
The lower valve cover is characterized in that a flow guide collecting plate is arranged on the inner bottom surface of the lower valve cover, the upper surface of the flow guide collecting plate is an inclined slope, and the lower part of the slope of the upper surface of the flow guide collecting plate is communicated with the sewage draining hole.
Compared with the prior art, the invention has the following technical effects:
The interference-free guide valve core component is matched with the opening guide clamping rail on the opening valve clack through the continuous opening guide clamping grooves arranged on the two sides of the flow passage on the side face of the opening wedge, the flow passage cannot intercept the rail, and the interference between the flow passage and the rail is avoided, so that the wedge valve core is more stable in axial lifting movement relative to the opening valve clack, and further the problem of internal leakage can be avoided to a certain extent.
The ball valve can realize frictionless opening and closing, the wedge-shaped valve core is matched with a four-valve-clack structure, the valve can be guaranteed to have bidirectional sealing zero leakage capacity, the valve can realize frictionless opening and closing, sealing abrasion is eliminated, and the service life of the valve is greatly prolonged.
And (III) the sealing structure of the ball valve in the full opening state can effectively prevent particle impurities in oil medium from entering the inner cavity of the valve body to damage the sealing surface, overcome the defect that the sealing surface of the conventional ball cleaning valve is easy to damage, and improve the working reliability and the service life of the valve.
And (IV) when the ball valve rotates, the valve clack is separated from the inner wall of the valve body, and when the cock rotates, the operating torque is small, so that the ball valve is suitable for occasions with frequent operation.
Drawings
FIG. 1 is a schematic drawing of the off-site elevation sectional structure of the present invention, i.e., a sectional view of section A-A in FIG. 7.
Fig. 2 is a schematic view of an open front sectional structure of the present invention.
Fig. 3 is a schematic view of the off-position depression sectional structure of the present invention, namely, a sectional view of B-B in fig. 5.
Fig. 4 is a schematic view of an open-position, prone-sectional structure of the present invention.
Fig. 5 is a schematic elevational view of the present invention.
Fig. 6 is a schematic top view of the present invention.
Fig. 7 is a schematic side view of the present invention.
The meaning of each reference numeral in the figures is: 1-valve body, 2-non-interference guiding valve core component, 3-valve rod, 4-upper valve cover, 5-lower valve cover, 6-lifting cavity, 7-wedge valve core runner, 8-valve clack runner, 9-valve body runner, 10-sealing rubber ring, 11-upper shaft sleeve, 12-graphite packing layer, 13-packing gland, 14-lower shaft sleeve, 15-sealing gasket, 16-O-shaped sealing ring, 17-detection hole, 18-blow-down hole, 19-blow-down valve and 20-guiding collecting plate;
201-of a wedge-shaped valve core, 202-of a closing wedge-shaped side, 203-of an opening wedge-shaped side, 204-of a closing valve clack, 205-of a closing guide key, 206-of a closing guide groove, 207-of an opening valve clack, 208-of an opening guide clamping groove, 209-of an opening guide clamping rail and 210-of a positioning hole;
301-upper valve stem, 302-lower valve stem.
The following examples illustrate the invention in further detail.
Detailed Description
The ball valve can realize friction-free opening and closing. The valve has the advantages of good circulation capacity, strong anti-pollution capacity, internal and external zero leakage capacity, on-line leakage detection function, reliable pollution discharge structure, small operation moment, strong sealing reliability and suitability for the occasion of strict sealing. The device can be widely used for occasions such as oil product conveying switching, in-out and receiving ball barrels of long-distance conveying pipelines in petrochemical industry.
The following specific embodiments of the present application are given according to the above technical solutions, and it should be noted that the present application is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solutions of the present application fall within the protection scope of the present application.
Example 1:
The present embodiment provides a non-interference guiding valve core assembly, as shown in fig. 1 to 4, including a wedge-shaped valve core 201, wherein one pair of oppositely disposed wedge-shaped side surfaces of four side surfaces of the wedge-shaped valve core 201 is a pair of closing wedge-shaped side surfaces 202, another pair of oppositely disposed wedge-shaped side surfaces of the four side surfaces of the wedge-shaped valve core 201 is a pair of opening wedge-shaped side surfaces 203, and the closing wedge-shaped side surfaces 202 are disposed adjacent to the opening wedge-shaped side surfaces 203;
A pair of closing wedge-shaped side surfaces 202 are respectively provided with a closing valve clack 204, the middle positions of the pair of closing wedge-shaped side surfaces 202 are respectively provided with a closing guide key 205 along the axial direction, each closing valve clack 204 is provided with a closing guide groove 206 along the axial direction, and the closing valve clack 204 is arranged on the closing wedge-shaped side surfaces 202 through the cooperation of the closing guide keys 205 and the closing guide grooves 206;
an opening valve clack 207 is respectively arranged on the pair of opening wedge-shaped side surfaces 203, an opening guide clamping groove 208 is respectively arranged at two side positions on the pair of opening wedge-shaped side surfaces 203 along the axial direction, an opening guide clamping rail 209 is respectively arranged at two sides on each opening valve clack 207 along the axial direction, and the opening valve clack 207 is arranged on the opening wedge-shaped side surfaces 203 through the cooperation of the opening guide clamping grooves 208 and the opening guide clamping rails 209;
The wedge-shaped valve core 201 is radially provided with a wedge-shaped valve core flow passage 7 which penetrates through a pair of opening wedge-shaped side surfaces 203, and the wedge-shaped valve core flow passage 7 is positioned between a pair of opening guide clamping grooves 208; the valve clack 207 is provided with a valve clack runner 8 coaxially and correspondingly arranged with the wedge-shaped valve core runner 7.
Example 2:
The embodiment provides a friction-free ball valve, as shown in fig. 1 to 7, which comprises a valve body 1, wherein an interference-free guiding valve core assembly 2 is arranged in the valve body 1, a valve rod 3 is arranged on the interference-free guiding valve core assembly 2, and the valve rod 3 comprises an upper valve rod 301 and a lower valve rod 302 which are coaxially arranged; an upper valve cover 4 is arranged at the upper part of the valve body 1, and a lower valve cover 5 is arranged at the lower part of the valve body 1;
the non-interference guide valve core assembly 2 adopts the non-interference guide valve core assembly in the embodiment 1;
One end of an upper valve rod 301 is arranged at the top of the wedge-shaped valve core 201, and the other end of the upper valve rod 301 passes through the upper valve cover 4 and extends out of the upper valve cover 4; one end of a lower valve rod 302 is arranged at the bottom of the wedge-shaped valve core 201, and the other end of the lower valve rod 302 is arranged in the lifting cavity 6 of the lower valve cover 5;
the valve body 1 is provided with a valve body flow passage 9 which is coaxially and correspondingly arranged with the wedge-shaped valve core flow passage 7;
The top of the closing valve clack 204 and the top of the opening valve clack 207 are arranged in clearance fit with the upper valve cover 4, the bottom of the closing valve clack 204 and the bottom of the opening valve clack 204 are arranged in clearance fit with the lower valve cover 5, and the upper valve cover 4 and the lower valve cover 5 are used for axially limiting the closing valve clack 204 and the opening valve clack 204; the clearance fit can ensure that the valve clack has enough movement allowance space in the radial contraction and extension process under the drive of the wedge-shaped valve core 201 while ensuring that the valve clack is axially limited, and the phenomenon of blocking is avoided.
The closing valve clack 204 is in sealing contact with the inner wall of the valve body 1 around the valve body flow passage 9.
In this embodiment, the inner cavity of the valve body 1 is spherical, and the four sealing valve clacks are spherical structures.
In this embodiment, the off-position guide key 205 and the off-position guide groove 206 adopt dovetail structures, i.e., dovetail grooves and dovetail keys. The open position guide clamping groove 208 and the open position guide clamping rail 209 also adopt dovetail type clamping grooves and clamping rails. Ensuring the stability during the relative movement.
As a preferable scheme of this embodiment, the sealing rubber ring 10 is disposed at the contact position of the closing valve clack 204 and the inner wall of the valve body 1, so as to ensure tightness between the non-interference guiding valve core assembly 2 and the inner wall of the valve body 1.
As a preferable scheme of the embodiment, an upper shaft sleeve 11, a graphite packing layer 12 and a packing gland 13 are sequentially arranged between the upper valve cover 4 and the upper valve rod 301 from inside to outside; a lower bushing 14 is disposed between the lift chamber 6 and the lower stem 302. The sealing performance in the moving process is ensured while the upper valve rod 301 moves up and down on the upper valve cover 4.
As a preferable scheme of the embodiment, a sealing gasket 15 and an O-shaped sealing ring 16 are arranged between the upper valve cover 4 and the valve body 1, and a sealing gasket 15 and an O-shaped sealing ring 16 are arranged between the lower valve cover 5 and the valve body 1.
As a preferable aspect of the present embodiment, the valve body 1 is provided with a plurality of detection holes 17. The detection holes 17 are distributed in the middle position of the valve body 1 and the positions of the valve body flow passages 9 at the two ends, and can detect various parameters in the valve body under the working condition of need, for example, the valve can be subjected to online leakage detection, and can be sealed and blocked when not used. The valve body 1 may not be provided with the detection hole 17 according to specific working conditions.
As a preferred embodiment of the present embodiment, the upper portion of the closing flap 204 is provided with a positioning hole 210. The positioning holes 210 are used for positioning when the sealing rubber ring 10 is installed, and are convenient to install.
As a preferable scheme of the embodiment, a drain hole 18 penetrating through the lower valve cover is processed on the lower valve cover 5, and a drain valve 19 is installed on the drain hole 18. The bottom surface of the inner part of the lower valve cover 5 is provided with a flow guide collecting plate 20, the upper surface of the flow guide collecting plate 20 is an inclined slope, and the lower part of the slope of the upper surface of the flow guide collecting plate 20 is communicated with the sewage discharging hole 18. The flow-guiding and collecting plate 20 is generally fixed by bolts, and the flow-guiding and collecting plate 20 can gather and collect dirt to the blow-down hole 18, and the blow-down valve 19 is opened periodically for blow-down.
The working process of the friction-free ball valve is as follows:
As shown in fig. 1 and 3, the closing valve clack 204 is completely attached to the sealing surface of the inner wall of the valve body 1 at the inlet and outlet of the valve body flow passage 9, and the valve is in a fully closed state. The upper valve rod 301 is driven by a known operator to lift the wedge-shaped valve core 201 in the interference-free guide valve core assembly 2, the closing valve clack 204 and the opening valve clack 207 are driven to retract radially, the closing valve clack 204 and the opening valve clack 207 are separated from the inner cavity of the valve body 1, the closing valve clack 204 and the opening valve clack 207 rotate 90 degrees under the condition that the closing valve clack 204 and the opening valve clack 207 are not contacted with the valve body 1, the wedge-shaped valve core runner 7 and the valve clack runner 8 are aligned with the valve body runner 9 in the radial direction, the vertical height of the wedge-shaped valve core runner 7 is higher than the vertical height of the valve clack runner 8 and the valve body runner 9, then the operator drives the wedge-shaped valve core 201 to move downwards, the wedge-shaped valve core 201 pushes the opening valve clack 207 outwards to be attached to the inner cavity sealing surface of the valve body 1, and the sealing piece is sealed, and at the moment, the wedge-shaped valve core runner 7, the valve clack runner 8 and the valve body runner 9 are aligned in the radial direction and the axial direction, namely the valve is fully opened, as shown in fig. 2 and 4. At the moment, impurity particles in the medium cannot enter the inner cavity of the valve body 1, and the valve has good medium anti-fouling capability.
During lifting and lowering of the wedge-shaped valve core 201, the upper valve cover 4 and the lower valve cover 5 axially limit the closing valve clack 204 and the opening valve clack 207, and through the matching of the closing guide key 205 and the closing guide groove 206 and the matching of the opening guide clamping groove 208 and the opening guide clamping rail 209, the axial movement of the wedge-shaped valve core 201 drives the radial retraction or outward expansion of the four valve clacks, so that the separation and sealing between the valve clacks and the valve body 1 are realized.
Similarly, when the valve is in a full-open state, the driving mechanism of the operator is reversed, the wedge-shaped valve core 201 is driven by the operator to lift upwards, the closing valve clack 204 and the opening valve clack 207 are retracted, the opening valve clack 204 is separated from the valve body 1, then the wedge-shaped valve core 201 drives the four valve clacks to reversely rotate by 90 degrees under the condition that the sealing element is not contacted with the valve body 1, at the moment, the position of the closing valve clack 204 is aligned with the outlet and inlet of the valve body flow channel 9, the wedge-shaped valve core 201 moves downwards by the operator, the wedge-shaped valve core 201 pushes the closing valve clack 4 outwards to be attached to the sealing surface of the valve body 1, the sealing element is sealed, and meanwhile, the upstream and the downstream are cut off, so that the bidirectional zero leakage sealing of the valve is realized.
By utilizing the working principle, the friction-free ball valve structure can replace a conventional pipe cleaning ball valve used in a long-distance pipeline, and when the pipe cleaning operation is realized, the friction-free opening and closing action of the ball valve in the receiving and transmitting ball cylinder is realized, the operation is simple, the performance is reliable, and the service life of the valve is greatly prolonged.
Claims (6)
1. The friction-free ball valve comprises a valve body (1) and is characterized in that an interference-free guide valve core assembly (2) is arranged in the valve body (1), a valve rod (3) is arranged on the interference-free guide valve core assembly (2), and the valve rod (3) comprises an upper valve rod (301) and a lower valve rod (302) which are coaxially arranged; an upper valve cover (4) is arranged at the upper part of the valve body (1), and a lower valve cover (5) is arranged at the lower part of the valve body (1);
The non-interference guide valve core assembly (2) comprises a wedge-shaped valve core (201), one pair of opposite wedge-shaped side surfaces of the four side surfaces of the wedge-shaped valve core (201) are a pair of closing wedge-shaped side surfaces (202), the other pair of opposite wedge-shaped side surfaces of the four side surfaces of the wedge-shaped valve core (201) are a pair of opening wedge-shaped side surfaces (203), and the closing wedge-shaped side surfaces (202) are arranged adjacent to the opening wedge-shaped side surfaces (203);
A closing valve clack (204) is respectively arranged on the pair of closing wedge-shaped side surfaces (202), a related position guide key (205) is respectively arranged at the middle position on the pair of closing wedge-shaped side surfaces (202) along the axial direction, a related position guide groove (206) is arranged on each closing valve clack (204) along the axial direction, and the closing valve clacks (204) are arranged on the closing wedge-shaped side surfaces (202) through the cooperation of the closing guide keys (205) and the closing guide grooves (206);
An opening valve clack (207) is respectively arranged on the pair of opening wedge-shaped side surfaces (203), an opening guide clamping groove (208) is respectively arranged at two side positions on the pair of opening wedge-shaped side surfaces (203) along the axial direction, an opening guide clamping rail (209) is respectively arranged at two sides on each opening valve clack (207) along the axial direction, and the opening valve clack (207) is arranged on the opening wedge-shaped side surfaces (203) through the cooperation of the opening guide clamping grooves (208) and the opening guide clamping rails (209);
a wedge-shaped valve core flow passage (7) which penetrates through a pair of opening wedge-shaped side surfaces (203) is radially processed on the wedge-shaped valve core (201), and the wedge-shaped valve core flow passage (7) is positioned between a pair of opening guide clamping grooves (208); the valve clack (207) is provided with a valve clack runner (8) which is coaxially and correspondingly arranged with the wedge-shaped valve core runner (7);
One end of an upper valve rod (301) is arranged at the top of the wedge-shaped valve core (201), and the other end of the upper valve rod (301) penetrates through the upper valve cover (4) and extends out of the upper valve cover (4); one end of a lower valve rod (302) is arranged at the bottom of the wedge-shaped valve core (201), and the other end of the lower valve rod (302) is arranged in a lifting cavity (6) of the lower valve cover (5);
The valve body (1) is provided with a valve body flow passage (9) which is coaxially and correspondingly arranged with the wedge-shaped valve core flow passage (7);
The top of the closing valve clack (204) and the top of the opening valve clack (207) are arranged in clearance fit with the upper valve cover (4), the bottom of the closing valve clack (204) and the bottom of the opening valve clack (207) are arranged in clearance fit with the lower valve cover (5), and the upper valve cover (4) and the lower valve cover (5) are used for axially limiting the closing valve clack (204) and the opening valve clack (207);
The closing valve clack (204) is in sealing contact with the inner wall of the valve body (1) around the valve body flow passage (9);
an upper shaft sleeve (11), a graphite packing layer (12) and a packing gland (13) are sequentially arranged between the upper valve cover (4) and the upper valve rod (301) from inside to outside; a lower shaft sleeve (14) is arranged between the lifting cavity (6) and the lower valve rod (302);
The lower valve cover (5) is provided with a drain hole (18) penetrating the lower valve cover, and the drain hole (18) is provided with a drain valve (19).
2. The friction-free ball valve according to claim 1, wherein the sealing rubber ring (10) is arranged at the contact position of the closing valve clack (204) and the inner wall of the valve body (1).
3. A frictionless ball valve according to claim 1, characterized in that a gasket (15) and an O-ring (16) are arranged between the upper valve cap (4) and the valve body (1), and a gasket (15) and an O-ring (16) are arranged between the lower valve cap (5) and the valve body (1).
4. A frictionless ball valve according to claim 1, characterized in that the valve body (1) is provided with a plurality of detection holes (17).
5. The friction-free ball valve according to claim 1, wherein the upper parts of the closing valve clacks (204) are provided with positioning holes (210).
6. The friction-free ball valve according to claim 1, wherein a flow guide collecting plate (20) is arranged on the inner bottom surface of the lower valve cover (5), the upper surface of the flow guide collecting plate (20) is an inclined slope, and the lower part of the slope of the upper surface of the flow guide collecting plate (20) is communicated with the sewage draining hole (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084263.8A CN109854775B (en) | 2019-01-29 | 2019-01-29 | Interference-free guide valve core assembly and friction-free ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084263.8A CN109854775B (en) | 2019-01-29 | 2019-01-29 | Interference-free guide valve core assembly and friction-free ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854775A CN109854775A (en) | 2019-06-07 |
| CN109854775B true CN109854775B (en) | 2024-06-21 |
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| CN201910084263.8A Active CN109854775B (en) | 2019-01-29 | 2019-01-29 | Interference-free guide valve core assembly and friction-free ball valve |
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Families Citing this family (1)
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| CN112096899B (en) * | 2020-07-27 | 2022-04-08 | 国家石油天然气管网集团有限公司华南分公司 | Conical motor servo direct-drive telescopic frictionless ball valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209977308U (en) * | 2019-01-29 | 2020-01-21 | 中国石油化工股份有限公司 | Non-interference guide valve core assembly and non-friction ball valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB924371A (en) * | 1960-02-18 | 1963-04-24 | Fisons Ltd | Gate valves for controlling fluid flow |
| CN2588147Y (en) * | 2002-12-12 | 2003-11-26 | 吴平 | Valve clack opened type track ball valve |
| CN101551023B (en) * | 2009-04-28 | 2010-10-13 | 胡金木 | Ball valve |
| CN108223840B (en) * | 2017-12-26 | 2019-07-19 | 西安航天远征流体控制股份有限公司 | Two tubing type plug valves of one kind, main valve and operator |
| DE202018101710U1 (en) * | 2018-03-27 | 2018-04-06 | Idc Plumbing & Heating Technology (Beijing) Ltd. | Improved rectilinear integrated control valve group |
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2019
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209977308U (en) * | 2019-01-29 | 2020-01-21 | 中国石油化工股份有限公司 | Non-interference guide valve core assembly and non-friction ball valve |
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