CN114382902B - Adjusting valve blade, mounting method thereof and adjusting valve - Google Patents
Adjusting valve blade, mounting method thereof and adjusting valve Download PDFInfo
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- CN114382902B CN114382902B CN202210067967.6A CN202210067967A CN114382902B CN 114382902 B CN114382902 B CN 114382902B CN 202210067967 A CN202210067967 A CN 202210067967A CN 114382902 B CN114382902 B CN 114382902B
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- side plate
- valve
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- movable side
- regulating valve
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/222—Shaping of the valve member
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/223—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
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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
- 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
- F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements
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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
- F16K1/48—Attaching valve members to screw-spindles
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a regulating valve blade which comprises a valve rod, wherein the valve rod is positioned between a long side plate and a short side plate, the long side plate, the short side plate and the valve rod are fixedly connected through a straight pin with an external thread at the tail end, a first spring washer and a first locking nut are sleeved at the tail end of the straight pin, and the first locking nut is used for fixing the straight pin; the movable side plate is connected with the short side plate through a hinge, and the movable side plate and the hinge, and the short side plate and the hinge are fixed through cross recessed countersunk head screws; the sealing ring is assembled in the clamping groove of the movable side plate and is tightly attached to the long side plate. The regulating valve blade provided by the invention can meet the regulating type valve which has higher leakage requirement on internal leakage but not zero leakage requirement in a ventilation system of a nuclear power plant. The invention also provides a mounting method of the regulating valve blade, which is simpler and more convenient than the existing method; the invention also provides a regulating valve applying the regulating valve blade, which can meet higher leakage requirements.
Description
Technical Field
The invention belongs to the technical field of valves, and relates to a regulating valve blade, a mounting method thereof and a regulating valve.
Background
The adjusting valve is an important component of a ventilation system of a nuclear power plant, and achieves the effect of adjusting the air quantity or pressure of a pipeline by adjusting the opening of a valve blade, thereby achieving the adjusting function of the ventilation system. Different ventilation systems require different levels of internal leakage to be achieved by the regulator valve, some do not require internal leakage, some require stage III leakage, and some are stage II leakage. Wherein the level II leakage has a relatively low leakage rate and a high requirement for leakage in the valve.
The existing valve structure is a fixed sealing ring, the installation is finished when a single blade is assembled, the operation requirement on an assembly bench worker is higher for the sealing ring with longer blade length during the installation, otherwise, the sealing effect of the blade and the blade, the blade and an upper valve seat and a lower valve seat is reduced greatly, and the leakage rate of the valve cannot be ensured. Secondly, the blade and the blade are sealed to achieve a sealing effect by mutually extruding the top ends of the sealing rings, the sealing is strengthened without much adjustment amount due to the cross section of the existing U-shaped sealing ring, the position of the sealing ring can only be adjusted by adjusting the fixed position of a long cutting hole in the sealing ring on the blade, two rows of bolt and nuts on each blade need to be dismounted firstly and then mounted after operation, and the best sealing effect needs to be achieved by repeatedly adjusting and confirming, the adjustment amount in the whole process is small, and the operation is complicated and labor-consuming. In addition, the blade, the upper valve seat, the lower valve seat and the side valve seat are in a mode that a stainless steel plate is overlapped on one side surface of a sealing ring, the leakage rate of the sealing surface is large, and the direction of pressure and air volume in a used pipeline can reduce the sealing effect.
Disclosure of Invention
In order to solve the technical problem, the invention provides a regulating valve blade which can meet the regulating type valve with higher internal leakage requirement but not zero leakage requirement in a ventilation system of a nuclear power plant; the invention also provides a mounting method of the regulating valve blade, which is simpler and more convenient than the existing method; the invention also provides a regulating valve applying the regulating valve blade, which can meet higher leakage requirements.
In order to achieve the purpose, the technical scheme adopted by the invention is that the blade of the regulating valve comprises a sealing ring, a movable side plate, a long side plate, a short side plate and a valve rod, wherein the valve rod is positioned between the long side plate and the short side plate, the long side plate, the short side plate and the valve rod are fixedly connected through a straight pin with an external thread at the tail end, a first spring washer and a first locking nut are sleeved at the tail end of the straight pin, and the first locking nut is used for fixing the straight pin; the movable side plate is connected with the short side plate through a hinge, and the movable side plate and the hinge, and the short side plate and the hinge are fixed through cross recessed countersunk head screws; the sealing ring is assembled in the clamping groove of the movable side plate and is tightly attached to the long side plate; the movable side plate is fixedly connected with the long side plate through a hexagonal head bolt, and a second spring washer and a second locking nut are sleeved at the tail end of the hexagonal head bolt and used for fixing the hexagonal head bolt; the section of the blade main body formed by the long side plate, the short side plate and the movable side plate is in a diamond shape.
Furthermore, one side of the sealing ring is of an equi-sawtooth shape, and the top end of the sealing ring is a hollow round head; the movable side plate is provided with a clamping groove matched with the zigzag shape of the sealing ring.
Further, the movable side plate is characterized in that two ends of the movable side plate are fixedly provided with blocking plates.
The invention also provides an installation method of the regulating valve blade, which comprises the following steps:
step S1: the long side plate, the short side plate and the valve rod are connected together through a first spring washer, a first locking nut and a straight pin, so that the two side plates tightly embrace the valve rod;
step S2: the movable side plate and the short side plate are connected together through a hinge and a cross-shaped groove countersunk head screw, so that the movable side plate can move around a central shaft of the hinge to open and close;
step S3: the sealing ring is arranged in the clamping groove of the movable side plate and can be properly adjusted through clamping of different clamping grooves;
step S4: and manually pushing back the movable side plate, and fixedly connecting the movable side plate with the long side plate through the hexagon head bolt, the second spring washer and the second locking nut.
The invention also provides a regulating valve applying the regulating valve blade, which is characterized by comprising a valve body, a valve seat support and a valve seat, wherein the valve seat support is a U-shaped bent piece and is plug-welded in the valve body; the valve seat is clamped in the valve seat bracket; the left side and the right side of the blade of the regulating valve are clamped into the valve seats on the left side and the right side of the valve body and are tightly attached to the valve seats; the sealing rings at the upper end and the lower end of the blade of the regulating valve tightly prop against the valve seat to form sealing with the valve seats at the upper side and the lower side.
Furthermore, the valve body is formed by welding an upper frame, a lower frame and a side frame which are formed by bending in a splicing mode.
Furthermore, the valve seat is a C-shaped piece formed by bending a thin plate, and the valve seat is clamped in the valve seat bracket to bow; the tight that the sealing washer withstands is the bow-type position of disk seat. The invention has the beneficial effects that:
1. during installation, the height of the sealing ring can be finely adjusted through the shape and the hollow shape of the sealing ring or the different clamping positions of the clamping grooves of the sealing ring, accumulated errors in actual processing and assembly can be made up, and leakage of the valve is ensured.
2. In the operation process of assembling and adjusting the sealing ring, the method is more labor-saving and rapid compared with the prior method.
3. After the valve is used, the quick-wear parts such as the sealing ring can be replaced more conveniently and quickly, and only the connecting fasteners of the long side plate and the movable side plate on the blade need to be detached, and the sealing ring which is replaced by new sealing ring is opened.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a blade construction according to an embodiment of the present invention.
FIG. 2 is a left side view of a blade configuration according to an embodiment of the present invention.
Fig. 3 is a structural view of a seal ring according to an embodiment of the present invention.
Fig. 4 is a three-view diagram of a movable side plate structure according to an embodiment of the present invention.
FIG. 5 is a schematic view of a blade to blade overlap according to an embodiment of the present invention.
FIG. 6 is a schematic view of a vane seal ring adjustment according to an embodiment of the present invention.
FIG. 7 is a schematic view of a valve seat support and valve seat structure according to an embodiment of the present invention.
FIG. 8 is a schematic view of the mounting of the vanes to the left and right valve seats according to an embodiment of the present invention.
Fig. 9 is an enlarged view of fig. 8 at a.
FIG. 10 is a schematic view of the mounting of the vanes to the upper and lower valve seats according to the embodiment of the present invention.
In the figure, 1, a sealing ring, 2, a movable side plate, 3, a long side plate, 4, a hinge, 5, a cross recessed countersunk head screw, 6, a short side plate, 7, a first spring washer, 8, a first locking nut, 9, a straight pin, 10, a valve rod, 11, a hexagon head bolt, 12, a second spring washer, 13, a second locking nut, 14, a valve seat support, 15, a valve seat, 16, a valve body and 17, a blocking plate are arranged.
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.
As shown in fig. 1-4, the invention provides a regulating valve blade, which comprises a sealing ring 1, a movable side plate 2, a long side plate 3, a short side plate 6 and a valve rod 10, wherein the valve rod 10 is positioned between the long side plate 3 and the short side plate 6, and the long side plate 3, the short side plate 6 and the valve rod 10 are fixedly connected through a straight pin 9 with external threads at the tail end; the tail end of the straight pin 9 is sleeved with a first spring washer 7 and a first locking nut 8, and the first locking nut 8 is used for fixing the straight pin 9; the reason for selecting the straight pin 9 instead of the ordinary bolt is that the part of the straight pin 9 between the two side plates is a polished rod which is easy to pass through and can be easily attached to the shaft pin hole, and if the bolt is selected, the polished rod of the bolt is not long enough, so that friction is generated between the thread and the shaft pin hole, the thread cannot pass through easily, and the bolt cannot be completely attached to the shaft hole; the movable side plate 2 is connected with the short side plate 6 through a hinge 4, the movable side plate 2 and the hinge 4 and the short side plate 6 and the hinge 4 are fixed through cross recessed countersunk head screws 5, and the cross recessed countersunk head screws 5 can be tightly matched with countersunk head sockets reserved on the hinge 4 and are convenient to assemble and disassemble; the sealing ring 1 is assembled in the clamping groove of the movable side plate 2 and is tightly attached to the long side plate 3; the movable side plate 2 and the long side plate 3 are fixedly connected through a hexagon head bolt 11, and a second spring washer 12 and a second locking nut 13 are sleeved at the tail end of the hexagon head bolt 11 and used for fixing the hexagon head bolt 11, and the hexagon head bolt 11 is connected through a bolt and is convenient to detach; the blade main body section that long curb plate 3, short curb plate 6, activity curb plate 2 constitute is the rhombus, not only has higher rigidity and intensity, has better full-open flow characteristic moreover.
Further, as shown in fig. 3, one side of the sealing ring 1 is in an equi-sawtooth shape, the top end of the sealing ring is a hollow round head, and the hollow round head is set to deform and contract when being squeezed, so that soft sealing is realized; the movable side plate 2 is provided with a clamping groove matched with the sealing ring 1 in a sawtooth shape. The position accuracy of the sealing ring 1 can be greatly guaranteed by the clamping groove in positioning the sealing ring 1, the operation influence of workers is reduced, and the wavy bad condition of the assembled sealing ring is reduced.
Further, as shown in fig. 4, the two ends of the movable side plate 2 are fixed with the blocking plates 17, and after the movable side plate is fixed with the long side plate 3, the sealing ring 1 can be completely fixed inside the clamping groove and cannot slide out of the movable side plate 2.
As shown in fig. 7-10, the invention further provides a regulating valve using the regulating valve blade, which comprises a valve body 16, a valve seat support 14 and a valve seat 15, wherein the valve body 16 is formed by welding an upper frame, a lower frame and a side frame which are formed by bending; the valve seat support 14 is a U-shaped bending piece and is plug-welded in the valve body 16; the valve seat 15 is a thin plate C-shaped member formed by bending, and the valve seat 15 is caught in the valve seat holder 14 to generate a bow, and the valve seat 15 serves as a sealing surface because it is elastic and rigid. The regulating valve blades are positioned in the valve seats 15, wherein the left side and the right side of the regulating valve blades are clamped in the valve seats 15 on the left side and the right side of the valve body 16 and tightly attached to the valve seats 15; the sealing rings 1 at the upper end and the lower end of the blade of the regulating valve tightly prop against the arching position of the valve seat 15 to form sealing with the valve seats 15 at the upper side and the lower side.
The invention also provides a method for mounting the blade of the regulating valve, which comprises the steps of firstly connecting the long side plate 3, the short side plate 6 and the valve rod 10 together through a first spring washer 7, a first lock nut 8 and a straight pin 9, so that the two side plates tightly hold the valve rod 10; secondly, the movable side plate 2 and the short side plate 6 are connected together through a hinge 4 and a cross recessed countersunk head screw 5, so that the movable side plate 2 can be opened and closed around the central axis of the hinge 4; then the sealing ring 1 is arranged in the clamping groove of the movable side plate 2 according to the figure 6, and can be properly adjusted through clamping of different clamping grooves; finally, the movable side plate 2 is manually pushed back, the movable side plate 2 and the long side plate 3 are fixedly connected through the hexagon head bolt 11, the second spring washer 12 and the second locking nut 13, and the sealing ring 1 can be completely fixed on the inner side of the clamping groove and cannot slide out of the movable side plate 2 due to the effect of the blocking plate 17.
As shown in fig. 5, when the blades of the regulating valve need to be overlapped, the blades are mutually extruded when the valve is closed, and because the sealing ring is in a hollow form, the overlapped area between the two blades is designed to be relatively larger, when the blades are mutually extruded, the respective retraction compression amount of the sealing ring is enough, and the leakage amount between the sealing rings can be effectively ensured to be minimized.
Although the design principle is the same, in the actual factory production, the situation that the leakage rate does not meet the requirement due to the fact that the two blade sealing rings cannot be mutually extruded or the compression amount is small can occur. Can dismantle hexagon head bolt 11, second spring washer 12, second lock nut 13, turn around hinge 4 axis with activity curb plate 2 together with sealing washer 1, take out sealing washer 1 from activity curb plate 2 median card groove, adjust sealing washer 1 to the draw-in groove position of activity curb plate 2, rethread hexagon head bolt 11, second spring washer 12, second lock nut 13 are fixed activity curb plate 2 and long curb plate 3, specifically see fig. 5.
The working process of the invention is as follows:
as shown in fig. 10, when the electric device or the manual device drives the valve rod 10 to rotate, the vane simultaneously rotates along with the valve rod 10, the regulating valve starts to close/open, and when the regulating valve is not in a fully closed state, the sealing ring of the vane is not squeezed and is in a natural state; when the regulating valve is in a completely closed state, the sealing rings 1 on the blades contact with the arched positions of the valve seats 15 on the upper side and the lower side, are extruded, change in shape and form sealing with the valve seats 15 on the upper side and the lower side.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The adjusting valve blade is characterized by comprising a sealing ring (1), a movable side plate (2), a long side plate (3), a short side plate (6) and a valve rod (10), wherein the valve rod (10) is positioned between the long side plate (3) and the short side plate (6), the long side plate (3), the short side plate (6) and the valve rod (10) are fixedly connected through a straight pin (9) with external threads at the tail end, a first spring washer (7) and a first lock nut (8) are sleeved at the tail end of the straight pin (9), and the first lock nut (8) is used for fixing the straight pin (9); the movable side plate (2) is connected with the short side plate (6) through a hinge (4), and the movable side plate (2) and the hinge (4) as well as the short side plate (6) and the hinge (4) are fixed through cross recessed countersunk head screws (5); the sealing ring (1) is assembled in the clamping groove of the movable side plate (2) and is tightly attached to the long side plate (3); the movable side plate (2) is fixedly connected with the long side plate (3) through a hexagon head bolt (11), and a second spring washer (12) and a second locking nut (13) are sleeved at the tail end of the hexagon head bolt (11) and used for fixing the hexagon head bolt (11); the section of the blade main body formed by the long side plate (3), the short side plate (6) and the movable side plate (2) is rhombic.
2. The vane of a regulating valve according to claim 1, characterized in that one side of the sealing ring (1) is of uniform sawtooth shape, and the top end is a hollow round head; the clamping groove of the movable side plate (2) is matched with the sealing ring (1) in a zigzag manner.
3. A regulating valve blade according to claim 1, characterised in that the movable side plate (2) is fixed with closure plates (17) at both ends.
4. A method of mounting a regulator valve vane according to any of claims 1 to 3 comprising the steps of:
step S1: the long side plate (3), the short side plate (6) and the valve rod (10) are connected together through a first spring washer (7), a first locking nut (8) and a straight pin (9), so that the long side plate (3) and the short side plate (6) tightly hold the valve rod (10);
step S2: the movable side plate (2) and the short side plate (6) are connected together through a hinge (4) and a cross recessed countersunk head screw (5), so that the movable side plate (2) can be opened and closed around a central shaft of the hinge (4);
step S3: the sealing ring (1) is arranged in the clamping groove of the movable side plate (2) and can be properly adjusted through clamping of different clamping grooves;
step S4: the movable side plate (2) is pushed back manually, and the movable side plate (2) and the long side plate (3) are fixedly connected through a hexagon head bolt (11), a second spring washer (12) and a second locking nut (13).
5. A regulating valve using the regulating valve blade as claimed in any one of claims 1 to 3, characterized by comprising a valve body (16), a valve seat support (14), a valve seat (15), wherein the valve seat support (14) is a U-shaped bent piece and is plug-welded in the valve body (16); the valve seat (15) is clamped in the valve seat bracket (14); the left side and the right side of the blade of the regulating valve are clamped into valve seats (15) on the left side and the right side of a valve body (16) and tightly attached to the valve seats (15); the sealing rings (1) at the upper end and the lower end of the blade of the regulating valve tightly prop against the valve seat (15) to form sealing with the valve seats (15) at the upper side and the lower side.
6. The regulating valve according to claim 5, characterized in that the valve body (16) is assembled and welded by bending and forming an upper frame, a lower frame and a side frame.
7. The regulating valve according to claim 5, characterized in that the valve seat (15) is a thin plate bent C-shaped part, and the valve seat (15) is clamped in the valve seat bracket (14) to generate bow; the sealing ring (1) is tightly propped against the arched position of the valve seat (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210067967.6A CN114382902B (en) | 2022-01-20 | 2022-01-20 | Adjusting valve blade, mounting method thereof and adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210067967.6A CN114382902B (en) | 2022-01-20 | 2022-01-20 | Adjusting valve blade, mounting method thereof and adjusting valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114382902A CN114382902A (en) | 2022-04-22 |
| CN114382902B true CN114382902B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210067967.6A Active CN114382902B (en) | 2022-01-20 | 2022-01-20 | Adjusting valve blade, mounting method thereof and adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114382902B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1092461A (en) * | 1963-03-05 | 1967-11-22 | Int Combustion Holdings Ltd | Improvements in or relating to damper assemblies |
| DE7920975U1 (en) * | 1979-07-21 | 1979-10-18 | Siegwart, Emil, 6603 Sulzbach | CLOSING FLAP FOR VENTILATION SYSTEM |
| JPS5625870U (en) * | 1979-08-06 | 1981-03-10 | ||
| DE2944096A1 (en) * | 1979-10-29 | 1981-05-14 | PB-Technik GmbH Bauelemente für Heiz- und Klimatechnik, 1000 Berlin | Ventilating duct control flap - consists of two circular plates with wire ring behind sealing strip in gap between them |
| JPH08334177A (en) * | 1995-06-08 | 1996-12-17 | Kubota Corp | Butterfly valve for high temperature use |
| JPH11210893A (en) * | 1998-01-21 | 1999-08-03 | Kubota Corp | Butterfly valve |
| NO332916B1 (en) * | 2010-01-08 | 2013-02-04 | Ikm Dsc Engineering As | Panel for offshore installations |
| CN109340385B (en) * | 2018-11-30 | 2024-07-02 | 郑州光大阀门制造有限公司 | Single-plate flexible-edge wind shielding door for flue gas desulfurization system |
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- 2022-01-20 CN CN202210067967.6A patent/CN114382902B/en active Active
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| Publication number | Publication date |
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| CN114382902A (en) | 2022-04-22 |
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Address after: 050222 No.69, Shitong Road, Luquan District, Shijiazhuang City, Hebei Province Patentee after: Shijiazhuang Xianchu Nuclear Equipment Co.,Ltd. Address before: 050222 No.69, Shitong Road, Luquan District, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG NO.1 VALVE FACTORY CO.,LTD. |
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