CN111810650A - Axial-flow single-seat valve with automatic impurity removal valve seat - Google Patents
Axial-flow single-seat valve with automatic impurity removal valve seat Download PDFInfo
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- CN111810650A CN111810650A CN202010726514.0A CN202010726514A CN111810650A CN 111810650 A CN111810650 A CN 111810650A CN 202010726514 A CN202010726514 A CN 202010726514A CN 111810650 A CN111810650 A CN 111810650A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention provides an axial flow single-seat valve with an automatic impurity removal valve seat, which comprises a valve body, a valve cover and a valve rod, wherein a valve cavity, a water inlet flow channel, a water outlet flow channel and a valve rod mounting opening are arranged in the valve body, the valve seat is mounted in the water outlet flow channel, the valve cover is hermetically mounted on the valve rod mounting opening, and the valve rod is slidably arranged in the valve rod mounting opening. Through utilizing the case that the components of a whole that can function independently set up, the internal valve core makes the absorption chamber of outer case produce the negative pressure to the motion of outer case relatively, inhales accumulational impurity in piston body department in the outer case, treats that the internal valve core continues to move and drives outer case and break away from the disk seat, and liquid medium is let in to the chamber of washout of outer case, and liquid medium washes away and takes away the impurity that adsorbs the intracavity to eliminate the harm of impurity to the case.
Description
Technical Field
The invention relates to the technical field of valves, in particular to an axial flow single-seat valve with a valve seat capable of automatically removing impurities.
Background
The single-seat valve has the advantages that the opening and closing part is a valve core, the valve core of the single-seat valve performs linear motion along with the valve rod to perform opening or closing, when the valve core is lifted and closed, the valve core is under the pressure of a fluid medium on one end face, large pressure can be generated on the valve core to be resisted by the valve core, and when the valve core of the single-seat valve is lifted and opened, the vortex phenomenon is easily generated at an outlet flow channel, so that the noise is large.
Patent No. CN200810244539.6 discloses a single seat regulating valve capable of withstanding a large pressure difference, which comprises: the valve comprises a valve body, a valve cover and a valve rod, wherein the valve body is internally provided with a valve cavity, a water inlet, a water outlet and a valve core outlet which are communicated with the valve cavity, a valve seat is arranged in the middle cavity of the valve body, a guide sleeve is arranged at the valve core outlet, a guide bushing is arranged in the guide sleeve, the valve cover compresses the guide sleeve through a sealing gasket arranged between the guide sleeve and the valve cover, the guide sleeve compresses the valve body through the sealing gasket arranged between the guide sleeve and the valve body, a packing box is arranged in the valve cover, and the valve rod is movably arranged in the packing box in a penetrating way and is connected with the valve core movably arranged in the guide bushing, so that a valve; and a balance channel for communicating the water inlet with the valve rod cavity is arranged in the valve core.
Although the valve rod cavity is formed among the valve rod, the valve core and the stuffing box, and the balance channel communicated with the water inlet and the valve rod cavity is arranged in the valve core, the defect of small pressure difference of the valve core is reduced, the invention cannot solve the problem that the valve core of the single-seat valve is easy to generate impurity accumulation at an outlet flow channel when the valve core is opened in a lifting mode, and the valve core is damaged.
Disclosure of Invention
Aiming at the problems, the invention provides an axial flow single-seat valve with an automatic impurity removal function for a valve seat, which utilizes a valve core arranged in a split mode, wherein an inner valve core moves relative to an outer valve core to enable an adsorption cavity of the outer valve core to generate negative pressure, impurities accumulated at a piston body are sucked into the outer valve core, when the inner valve core continues to move to drive the outer valve core to be separated from the valve seat, a liquid medium is introduced into a scouring cavity of the outer valve core, and the liquid medium scours and takes away the impurities in the adsorption cavity, so that the problems that the impurities are easily accumulated at an outlet flow channel and the valve core is damaged in the background.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an automatic impurity axial compressor single seat valve that removes of disk seat, includes valve body, valve gap and valve rod, be provided with valve pocket, water inlet flow way, play water flow way and valve rod installing port in the valve body, install the disk seat in the play water flow way, valve gap seal installation in on the valve rod installing port, the valve rod slide set up in the valve rod installing port, its characterized in that still includes:
the guide piece is coaxially arranged in the valve cavity and arranged at one end of the water outlet flow passage, and the guide piece is arranged in a hollow manner;
the valve core group penetrates through the guide piece and is in transmission connection with the bottom end of the valve rod through a transmission mechanism, and the movable end of the valve core group is arranged at the water outlet flow passage and matched with the valve seat;
the valve core group comprises an outer valve core and an inner valve core, the outer valve core is sleeved outside the inner valve core, the outer valve core is hollow, the end part of the valve body is provided with a piston body, the middle part of the outer side wall of the outer valve core is integrally provided with a closed ring, the side wall of the outer valve core is provided with a first through hole and a second through hole, the inner cavity of the outer valve core comprises an adsorption cavity close to the piston body and a scouring cavity adjacent to the adsorption cavity, the first port is communicated with the adsorption cavity, the second port is communicated with the flushing cavity, a plurality of bosses are arranged on the inner wall of the adsorption cavity in an array manner around the circumference of the adsorption cavity, the inner valve core comprises a core column, a sucker arranged at the end part of the core column and a top block which is adjacent to the sucker and arranged on the core column, the equidistance array sets up a plurality of notches on the circumference of sucking disc, the notch with the boss one-to-one sets up, the sucking disc with the absorption chamber looks adaptation.
As an improvement, a plurality of noise reduction holes are formed in the guide piece.
As an improvement, the ratio of the diameter of the noise reduction hole to the diameter of the water outlet flow channel is i, and the ratio i is set to be 0.05-0.15.
In an improvement, the outer valve core is sealed in a sliding manner relative to the guide member, and the guide member controls the opening and closing of the second port.
As an improvement, the diameter of the flushing cavity is larger than that of the core column, and one end, far away from the piston body, of the outer valve core is arranged in a sliding and sealing mode with the core column.
As an improvement, an anti-rotation groove is formed in the inner wall of the flushing cavity, and an anti-rotation table constrained in the anti-rotation groove is arranged on the side wall of the core column.
As an improvement, the first through opening is arranged close to the piston body, and the opening of the first through opening is arranged downwards.
As an improvement, the diameter of the adsorption cavity is larger than that of the flushing cavity, and when the inner valve core is pulled towards the left side, the ejector block props against the end part of the flushing cavity to drive the outer valve core to move.
As a modification, the length of the boss is smaller than that of the adsorption cavity, and the notch can be separated from the boss along with the movement of the inner valve core.
As an improvement, the top blocks are arrayed along the circumference of the core column, a water passing groove is reserved between the adjacent top blocks, and the water passing groove forms a flow channel corresponding to the notch.
The system of the invention has the advantages that:
(1) according to the invention, by utilizing the valve core which is arranged in a split manner, the inner valve core moves relative to the outer valve core to enable the adsorption cavity of the outer valve core to generate negative pressure, impurities accumulated at the position of the piston body are sucked into the outer valve core, when the inner valve core continues to move to drive the outer valve core to be separated from the valve seat, the flushing cavity of the outer valve core is filled with liquid medium, and the liquid medium flushes and takes away the impurities in the adsorption cavity, so that the damage of the impurities to the valve core is eliminated;
(2) according to the invention, the guide piece is used for arranging the noise reduction hole, so that the noise of the valve can be effectively reduced, and the noise pollution is reduced;
(3) according to the invention, the closed cavity is formed among the closed ring, the piston body and the water outlet flow channel, so that the fluid medium is not communicated with the fluid medium in the valve cavity in the closed cavity, and therefore, impurities at the piston body are less and can be sucked by the adsorption cavity;
(4) according to the invention, the water passing grooves correspond to the notches one to form the flow passages, so that a liquid medium smoothly passes through the flushing cavity to flush the adsorption cavity and take away impurities;
(5) according to the invention, the water inlet flow channel and the water outlet flow channel are coaxially arranged, so that the formation of vortex is effectively avoided.
In conclusion, the invention has the advantages of impurity removal, vortex elimination, noise reduction, structure optimization and the like, and is particularly suitable for the technical field of valves.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a second schematic cross-sectional view of the present invention;
FIG. 4 is an enlarged view of the point A in FIG. 3;
FIG. 5 is a partial schematic view of the valve core pack of the present invention;
FIG. 6 is a schematic view of a guide member according to the present invention;
FIG. 7 is a schematic view of the outer valve element of the present invention;
FIG. 8 is a schematic view of the inner spool of the present invention;
fig. 9 is a schematic view of the outer valve core and the inner valve core of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1:
as shown in fig. 1 to 9, an automatic impurity removal axial flow single seat valve of disk seat, includes valve body 1, valve gap 2 and valve rod 3, be provided with valve chamber 11, influent stream channel 12, effluent stream channel 13 and valve rod installing port 14 in the valve body 1, install disk seat 15 in the effluent stream channel 13, valve gap 2 seal installation in on the valve rod installing port 14, valve rod 3 slide set up in the valve rod installing port 14, still include:
the guide piece 4 is coaxially arranged in the valve cavity 11 and is arranged at one end of the water outlet flow channel 13, and the guide piece 4 is arranged in a hollow manner;
the valve core group 5 penetrates through the guide part 4 and is in transmission connection with the bottom end of the valve rod 3 through the transmission mechanism 6, and the movable end of the valve core group 5 is arranged at the water outlet flow passage 13 and is matched with the valve seat 15;
the valve core group 5 comprises an outer valve core 51 and an inner valve core 52, the outer valve core 51 is sleeved outside the inner valve core 52, the outer valve core 51 is hollow, the end part of the outer valve core 51 is provided with a piston body 511, the middle part of the outer side wall of the outer valve core 51 is integrally provided with a closed ring 512, the side wall of the outer valve core 51 is provided with a first through hole 513 and a second through hole 514, the inner cavity of the outer valve core 51 comprises an adsorption cavity 515 close to the piston body 511 and a flushing cavity 516 adjacent to the adsorption cavity 515, the first through hole 513 is communicated with the adsorption cavity 515, the second through hole 514 is communicated with the flushing cavity 516, the inner wall of the adsorption cavity 515 is provided with a plurality of bosses 517 around the circumference array thereof, the inner valve core 52 comprises a core column 521, a suction cup 522 arranged at the end part of the core column 521 and a top block 523 arranged on the core column 521 and adjacent to the suction cup 522, the periphery of the, the notches 524 are arranged in one-to-one correspondence with the bosses 517, and the suction cups 522 are matched with the suction cavities 515.
It should be noted that a closed cavity is formed between the closing ring 512, the piston body 511 and the outlet flow channel 13, so that the fluid medium is not communicated with the fluid medium in the valve cavity in the closed cavity, and therefore impurities at the piston body are less and can be sucked by the adsorption cavity.
It is worth to be noted that the transmission mechanism 6 mainly comprises a connecting rod 61 and a shifting fork 62, two ends of the connecting rod 61 are respectively connected with the valve rod 3 and the shifting fork 62, the shifting fork 62 is hinged on the valve body 1, the free end of the shifting fork 62 shifts the inner valve core 52 to be arranged, and the transmission mechanism 6 converts the vertical motion transmission of the valve rod 3 into the horizontal motion of the valve core group 5.
It should be further noted that the water inlet channel 12 and the water outlet channel 13 are coaxially arranged, so that formation of a vortex is effectively avoided.
In a preferred embodiment, the guide 4 is provided with a plurality of noise reduction holes 41.
In a preferred embodiment, the ratio of the diameter of the noise reduction hole 41 to the diameter of the water outlet channel 13 is i, and the ratio i is set to be 0.05-0.15.
It should be noted that the diameter setting ratio of the noise reduction hole 41 to the water outlet flow channel 13 is 0.05-0.15, so that the cross section of the flowing liquid medium is dispersed, and the noise generated by the large-area impact between the liquid medium and the valve body is reduced.
In a preferred embodiment, the outer valve body 51 is slidably sealed with respect to the guide 4, and the guide 4 controls opening and closing of the second port 514.
In a preferred embodiment, the diameter of the flushing cavity 516 is larger than the diameter of the stem 521, and the end of the outer valve core 51 away from the piston body 511 is slidably and hermetically arranged with the stem 521.
In a preferred embodiment, an anti-rotation groove 518 is formed in an inner wall of the flushing cavity 516, and an anti-rotation platform 5211 constrained in the anti-rotation groove 518 is formed in a side wall of the stem 521.
It should be noted that the anti-rotation boss 5211 is matched with the anti-rotation slot 518, so that the inner valve core 52 does not rotate relative to the outer valve core 51, and interference between the boss 517 and the notch 524 is avoided.
In a preferred embodiment, the first port 513 is disposed in close contact with the piston body 511, and an opening thereof is disposed downward.
The first port 513 is provided with a downward opening, which is advantageous for adsorbing the impurities accumulated in the bottom of the piston body 511 by gravity from the first port 513 to the adsorption chamber 515.
In a preferred embodiment, the diameter of the adsorption cavity 515 is larger than that of the flushing cavity 516, and when the inner valve core 52 is pulled to the left, the top block 523 abuts against the end of the flushing cavity 516 to drive the outer valve core 51 to move.
In a preferred embodiment, the length of the boss 517 is smaller than that of the adsorption cavity 515, and the notch 524 is separated from the boss 517 by following the movement of the inner spool 52.
In a preferred embodiment, the top blocks 523 are arrayed along the circumference of the stem 521, a water passing groove 525 is left between adjacent top blocks 523, and the water passing groove 525 forms a flow channel corresponding to the notch 524.
It should be noted that the one-to-one corresponding recesses 524 of the water passing grooves 525 form flow passages, so that the liquid medium can smoothly pass through the flushing cavity to flush the adsorption cavity and take away impurities.
The working process is as follows:
when the valve is closed, firstly, the connecting rod 61 is lowered through the valve rod 3, the connecting rod 61 drives the shifting fork 62 to rotate so as to drive the inner valve core 52 to move rightwards, the outer valve core 51 moves along with the inner valve core 52, the guide piece 4 seals the second through hole 514 of the outer valve core 51, when the outer valve core 51 is contacted with the valve seat 15, the outer valve core 51 is subjected to the friction of the valve seat 15 to slow down the speed, the inner valve core 52 slides relative to the outer valve core 51, liquid media in the adsorption cavity 515 are discharged from the first through hole 513, then the end part of the inner valve core 52 abuts against the outer valve core 51 to drive the outer valve core 51 to continuously advance until the sealing ring 512 abuts against the inner wall of the valve cavity 11 of the valve body 1, the piston body 511 at the end part of.
When the brake is opened, the connecting rod 61 is lifted through the valve rod 3, the connecting rod 61 drives the shifting fork 62 to rotate so as to drive the inner valve core 52 to move leftwards, the outer valve core 51 is static under the pressure of a liquid medium, the inner valve core 52 slides relative to the outer valve core 51, so that the adsorption cavity 515 generates negative pressure, the liquid medium and impurities in the closed cavity formed by the closed ring 512, the stem 521 and the piston body 511 are adsorbed into the adsorption cavity 515, the inner valve core 52 continues to move leftwards until a top block 523 of the inner valve core 52 butts against the outer valve core 51 to drive the outer valve core 51 to move, the second through hole 514 is separated from the inner wall of the guide part 4 and opened, the liquid medium flows in from the second through hole 514, passes through the flushing cavity and then flushes the adsorption cavity 515 to carry away the impurities, and therefore the outer valve core 516.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides an automatic impurity axial compressor single seat valve that removes of disk seat, includes valve body (1), valve gap (2) and valve rod (3), be provided with valve chamber (11), water inlet channel (12), water outlet channel (13) and valve rod installing port (14) in valve body (1), install disk seat (15) in water outlet channel (13), valve gap (2) seal installation in on valve rod installing port (14), valve rod (3) slide set up in valve rod installing port (14), its characterized in that still includes:
the guide piece (4) is coaxially arranged in the valve cavity (11) and is arranged at one end of the water outlet flow channel (13), and the guide piece (4) is arranged in a hollow manner;
the valve core group (5) penetrates through the guide piece (4) and is in transmission connection with the bottom end of the valve rod (3) through the transmission mechanism (6), and the movable end of the valve core group (5) is arranged at the water outlet flow channel (13) and matched with the valve seat (15);
the valve core group (5) comprises an outer valve core (51) and an inner valve core (52), the outer valve core (51) is sleeved on the outer side of the inner valve core (52), the outer valve core (51) is arranged to be hollow inside, the end part of the outer valve core is arranged to be a piston body (511), a closed ring (512) is integrally arranged in the middle of the outer side wall of the outer valve core (51), a first through hole (513) and a second through hole (514) are formed in the side wall of the outer valve core (51), the inner cavity of the outer valve core (51) comprises an adsorption cavity (515) close to the piston body (511) and a flushing cavity (516) adjacent to the adsorption cavity (515), the adsorption cavity (515) is communicated with the adsorption cavity (515), the first through hole (513) is communicated with the adsorption cavity (515), the flushing cavity (516) is communicated with the second through hole (514), a plurality of bosses (517) are arranged on the inner wall of the adsorption cavity (515) around the circumferential, The sucker (522) arranged at the end part of the core column (521) and the top block (523) which is adjacent to the sucker (522) and arranged on the core column (521) are arranged, a plurality of notches (524) are arranged on the circumference of the sucker (522) in an equidistant array mode, the notches (524) are arranged in one-to-one correspondence with the bosses (517), and the sucker (522) is matched with the adsorption cavity (515).
2. Axial-flow single seat valve with automatic impurity removal function according to claim 1, characterized in that said guide (4) is provided with noise reduction holes (41).
3. The axial flow single seat valve with the automatic impurity removal function as claimed in claim 2, wherein the ratio of the diameter of the noise reduction hole (41) to the diameter of the water outlet flow channel (13) is i, and the ratio i is set to be 0.05-0.15.
4. An automatic axial flow single seat valve for removing impurities as claimed in claim 1, wherein said outer valve core (51) is sealed in sliding manner with respect to said guide member (4), said guide member (4) controlling the opening and closing of said second port (514).
5. The axial flow single seat valve with the valve seat capable of automatically removing impurities as claimed in claim 1, wherein the diameter of the flushing cavity (516) is larger than that of the stem (521), and one end of the outer valve core (51) far away from the piston body (511) is in sliding sealing arrangement with the stem (521).
6. The axial flow single seat valve with the valve seat capable of automatically removing impurities as claimed in claim 5, wherein an anti-rotation groove (518) is formed on the inner wall of the flushing cavity (516), and an anti-rotation platform (5211) constrained to the anti-rotation groove (518) is formed on the side wall of the core column (521).
7. Axial-flow single seat valve with automatic impurity removal function according to claim 1, characterized in that said first port (513) is arranged against said piston body (511) with its opening facing downwards.
8. The axial flow single seat valve with the automatic impurity removal function as claimed in claim 1, wherein the diameter of the adsorption cavity (515) is larger than that of the flushing cavity (516), and when the inner valve core (52) is pulled to the left side, the top block (523) pushes against the end of the flushing cavity (516) to drive the outer valve core (51) to move.
9. The axial flow single seat valve for automatic impurity removal of valve seat as claimed in claim 1, wherein the length of said boss (517) is smaller than the length of said adsorption cavity (515), and said notch (524) is disengageable from said boss (517) following the movement of said inner spool (52).
10. The axial flow single seat valve with the valve seat capable of automatically removing impurities as claimed in claim 1, wherein the top blocks (523) are arrayed in a plurality along the circumference of the stem (521), a water passing groove (525) is reserved between the adjacent top blocks (523), and the water passing groove (525) forms a flow channel corresponding to the notch (524).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726514.0A CN111810650B (en) | 2020-07-25 | 2020-07-25 | Axial-flow single-seat valve with automatic impurity removal valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726514.0A CN111810650B (en) | 2020-07-25 | 2020-07-25 | Axial-flow single-seat valve with automatic impurity removal valve seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111810650A true CN111810650A (en) | 2020-10-23 |
| CN111810650B CN111810650B (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010726514.0A Active CN111810650B (en) | 2020-07-25 | 2020-07-25 | Axial-flow single-seat valve with automatic impurity removal valve seat |
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| CN (1) | CN111810650B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819243A (en) * | 2021-08-24 | 2021-12-21 | 南通国电阀门科技有限公司 | Overload safety isolation valve for main pipe of nuclear power boiling water reactor |
| CN114215946A (en) * | 2021-12-17 | 2022-03-22 | 南通市电站阀门有限公司 | Axial-flow dynamic self-balancing regulating valve |
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| JPS58109776A (en) * | 1981-12-24 | 1983-06-30 | 松浦 一 | Stop valve of pipe axial-flow system |
| CN2871992Y (en) * | 2006-02-08 | 2007-02-21 | 北京市燕山工业燃气设备有限公司 | Guiding axial-flow valve |
| CN103047476A (en) * | 2011-10-15 | 2013-04-17 | 江苏神通阀门股份有限公司 | Split piston axial-flow type regulating valve |
| CN103090019A (en) * | 2013-02-06 | 2013-05-08 | 特瑞斯能源装备股份有限公司 | Regulating valve of axial flow sleeve |
| US20170097105A1 (en) * | 2015-10-02 | 2017-04-06 | Fisher Controls International Llc | Flow control valve having a motion conversion device |
| CN108131455A (en) * | 2018-02-12 | 2018-06-08 | 无锡智能自控工程股份有限公司 | High Pressure Difference axial flow control valve |
| CN207777725U (en) * | 2017-10-20 | 2018-08-28 | 重庆昂宇自控仪表有限公司 | A kind of axial flow control valve |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113819243A (en) * | 2021-08-24 | 2021-12-21 | 南通国电阀门科技有限公司 | Overload safety isolation valve for main pipe of nuclear power boiling water reactor |
| CN114215946A (en) * | 2021-12-17 | 2022-03-22 | 南通市电站阀门有限公司 | Axial-flow dynamic self-balancing regulating valve |
| CN114215946B (en) * | 2021-12-17 | 2023-12-26 | 南通市电站阀门有限公司 | Axial-flow type dynamic self-balancing regulating valve |
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| CN111810650B (en) | 2021-08-24 |
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