CN115325194B - Energy-saving valve easy and convenient to disassemble, assemble and maintain - Google Patents
Energy-saving valve easy and convenient to disassemble, assemble and maintain Download PDFInfo
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- CN115325194B CN115325194B CN202211264636.8A CN202211264636A CN115325194B CN 115325194 B CN115325194 B CN 115325194B CN 202211264636 A CN202211264636 A CN 202211264636A CN 115325194 B CN115325194 B CN 115325194B
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- valve
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- retainer
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
- F16K27/047—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with wedge-shaped obturating 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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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
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses an energy-saving valve which is simple and convenient to assemble, disassemble and maintain, and comprises a valve body, wherein a valve plate assembly is arranged in the valve body, the valve plate assembly comprises a gate plate retainer, a first valve plate and a second valve plate, the lower part of the gate plate retainer is connected with a lower baffle plate, the upper part of the gate plate retainer is connected with an upper baffle plate, the first valve plate and the second valve plate are respectively clamped on two sides of the gate plate retainer by the lower baffle plate and the upper baffle plate, the inner end of the second valve plate is connected with one end of a top core, the top core is positioned in a through hole of the gate plate retainer, and the other end of the top core is matched with the first valve plate in an arc manner. The invention has the beneficial effects that: the valve body and the flashboard component are sealed by adopting a wedge-type self-sealing structural design, the flashboard component consists of a left auxiliary flashboard and a right auxiliary flashboard, the two auxiliary flashboards are connected through a top core in an arc manner and can float in the flashboard retainer, and when a wind tunnel is pressurized, operated and maintained, the valve body can be subjected to displacement deformation due to pipeline stress generated by a large-size pipeline and pressure, so that the problem is solved very reliably by the floating type arc flashboard component.
Description
Technical Field
The invention belongs to the field of supersonic wind tunnel gas storage tanks and test section main cut-off valves, and particularly relates to an energy-saving valve which is simple and convenient to disassemble, assemble and maintain.
Background
In jumbo size supersonic wind tunnel test system, because the wind tunnel test size is big, the operating condition such as test condition change is many, consequently need set up the main trip valve between gas holder and test section, the purpose is in order to cut off the gas connection between the two, on the one hand, in order to ensure promptly to cut off the power air supply when test section equipment breaks down, guarantee rear equipment's safety in utilization, on the other hand is in order to cut off main air supply when wind tunnel fortune dimension overhauls and change test cabin model, can reduce the air supply loss by a wide margin and can reliably guarantee rear maintainer's safety again.
In view of the particularity of the working conditions of the test section, the main cut-off valve has high performance guarantee requirements, and the common main cut-off valve has the defects of poor deformation capability, high flow resistance and the like due to the fact that the common main cut-off valve bears the stress of a large-size pipeline, so that the phenomena of low overall operation economy, frequent maintenance, low maintenance feasibility and the like of the wind tunnel are caused, and great loss is caused to the overall test task.
Disclosure of Invention
The invention aims to: the invention provides an energy-saving valve which is simple and convenient to disassemble, assemble and maintain, has the characteristics of small structural flow resistance, simple and convenient opening and closing operation, convenient disassembly and assembly and high maintainability, and solves the problems of poor deformation capability and high flow resistance of a main cut-off valve.
The purpose of the invention is realized by the following technical scheme:
the utility model provides an energy-conserving and valve that dismouting was maintained portably, including the valve body, be equipped with the valve plate subassembly in the valve body, the valve plate subassembly includes the flashboard holder, first valve plate and second valve plate, the lower part and the lower baffle of flashboard holder are connected, the upper portion and the last baffle of flashboard holder are connected, lower baffle and last baffle are with first valve plate, the both sides at the flashboard holder are established to the second valve plate card respectively, the inner of second valve plate is connected with the one end of plunger tip, the plunger tip is located the through-hole of flashboard holder, the other end and the first valve plate circular arc cooperation of plunger tip.
Furthermore, the lower baffle is of a U-shaped structure with an upward opening, and the upper baffle is of a U-shaped structure with a downward opening.
Further, the flashboard retainer is an inverted cone-shaped cross section, and the first valve board and the second valve board form an inverted cone-shaped arrangement structure.
Furthermore, the inner end of the first valve plate is provided with a first convex part, the first convex part is matched with the circular arc of the through hole of the flashboard retainer, the inner end of the second valve plate is provided with a second convex part, and the second convex part is matched with the circular arc of the through hole of the flashboard retainer.
Furthermore, the valve body is connected with a valve cover, the valve cover is connected with a support, the flashboard retainer is connected with a valve rod, and the valve rod is positioned in the valve cover and the support.
Further, flashboard holder and valve rod between be equipped with toper pad, four ring-opening and backing ring, go up the baffle and press down and establish the backing ring, the backing ring is pressed down and is established four ring-opening, four ring-openings are pressed down and are established the toper pad, the toper pad is pressed down and is established the valve rod.
Furthermore, a packing pad and low-leakage packing are arranged between the valve cover and the valve rod, the valve cover is connected with a packing pressing plate, a packing pressing sleeve is arranged on the packing pressing plate in a downward pressing mode, the low-leakage packing is arranged on the packing pressing sleeve in a downward pressing mode, the packing pad supports the low-leakage packing upwards, and the packing pad is located at the bottom of a packing groove of the valve cover.
Furthermore, the valve cover is connected with a fourth stud, a fourth nut is arranged on the fourth stud, a spring pressing sleeve is downwards pressed by the fourth nut, and a disc spring is arranged between the spring pressing sleeve and the packing pressing plate.
Furthermore, the thread section at the upper end of the valve rod is matched with a valve rod nut, the valve rod nut is arranged on a thrust ball bearing, the thrust ball bearing is arranged at the bottom of a support nut seat, the support is connected with a gland through a screw, and the gland is downwards pressed with the thrust ball bearing.
Furthermore, a middle flange gasket is arranged between the valve body and the valve cover, and a first O-shaped ring and a second O-shaped ring are arranged at the inlet and outlet ends of the valve body.
The invention has the beneficial effects that:
1. the valve body design runner hole is circular, and leaves the processing allowance during casting, and is unanimous with the pipeline internal diameter after the machine tooling, and when the flashboard subassembly is wide open, breaks away from the runner hole completely, consequently when the valve is full-open, does not have any subassembly structural design in the valve body runner, is equivalent to straight through pipeline flow area maximize, and the flow resistance is low.
2. The valve body and the flashboard component are sealed by adopting a wedge-type self-sealing structural design, the flashboard component consists of a left auxiliary flashboard and a right auxiliary flashboard, the two auxiliary flashboards are connected through a top core circular arc and can float in the flashboard retainer, and due to the design, when a wind tunnel is pressurized, operated and overhauled, certain displacement deformation can be caused to the valve body due to pipeline stress generated by a large-size pipeline and pressure, and the problem is solved very reliably by the floating circular arc flashboard component.
3. The valve rod and the flashboard retainer are connected by adopting four open rings and conical gaskets, and the flashboard retainer and the auxiliary flashboard are connected and limited by adopting an upper baffle plate and a lower baffle plate, so that the valve rod and the flashboard retainer are simple and convenient to disassemble and do not damage structural parts compared with the traditional valve rod and flashboard retainer which adopt a cylindrical pin connecting structure.
4. The valve rod adopts a double-line trapezoidal thread design, the purpose is to accelerate the overall opening and closing speed of the valve, the opening and closing speed is increased by 50% compared with the common single-line trapezoidal thread, the closing speed of the main cut-off valve is reliably increased when the wind tunnel is operated and closed emergently, and the overall control response capability of the wind tunnel is improved.
5. The valve rod packing adopts a quantitative compression design, and the pre-tightening stress of the stud assembly of the packing pressing plate is relaxed due to the self-sealing compressibility of the packing after the equipment runs for a period of time.
6. The valve rod nut adopts the design of upper and lower thrust ball duplex bearings, when the main cut-off valve is opened and closed, the thrust friction of the end face of the valve rod nut can be effectively reduced, the valve rod nut adopts an aluminum bronze material and the high alloy steel of the valve rod, the phenomenon of 'occlusion' can not occur, the occurrence of the phenomenon of blocking when the valve rod is opened and closed is reduced to the greatest extent, and the thrust moment when the valve rod is opened and closed is effectively reduced, so that the model selection moment of the valve electric actuator is small, the loss of the actuator is small, and the requirements of energy conservation and efficiency improvement of the whole operation of the wind tunnel are met.
7. Compared with the traditional screw gland design, the valve rod nut has the characteristics of convenience in disassembly and assembly without damaging parts, and the problem of field maintainability of the main cut-off valve is effectively solved.
The main scheme and each further selected scheme of the invention can be freely combined to form a plurality of schemes which are adopted and claimed by the invention; in the invention, the selection (each non-conflict selection) and other selections can be freely combined. The skilled person in the art can understand various combinations according to the prior art and the common general knowledge after understanding the solution of the present invention, and the combinations are all the technical solutions to be protected by the present invention, and are not exhaustive here.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Figure 2 is a side view of the structure of the present invention.
Fig. 3 is an enlarged view of fig. 1 at a.
Fig. 4 is an enlarged view of fig. 1 at B.
Fig. 5 is an enlarged view at C of fig. 1.
In the figure: 1-valve body, 2-first bolt, 3-first washer, 4-lower baffle, 5-gate retainer, 6-first valve plate, 7-second valve plate, 8-top core, 9-valve stem, 10-conical pad, 11-four open ring, 12-backing ring, 13-upper baffle, 14-second stud, 15-second nut, 16-second washer, 17-valve cap, 18-packing pad, 19-low leakage packing, 20-third stud, 21-third nut, 22-third gasket, 23-fourth stud, 24-fourth nut, 25-fourth gasket, 26-packing press sleeve, 27-packing press plate, 28-spring press sleeve, 29-disc spring, 30-bracket, 31-valve stem nut, 32-thrust ball bearing, 33-screw, 34-gland, 40-middle flange gasket, 41-first O-ring, 42-second O-ring.
Detailed Description
The following non-limiting examples serve to illustrate the invention.
Example 1:
referring to fig. 1 to 5, the energy-saving valve with simple disassembly, assembly and maintenance comprises a valve body 1, a valve cover 17, a valve plate assembly, a valve rod 9, a support 30, a fastener, a sealing element and an electric actuator, wherein the valve plate assembly comprises a lower baffle 4, a gate plate retainer 5, a first valve plate 6, a second valve plate 7, a top core 8 and an upper baffle 13.
The runner of the valve body 1 is circular, machining allowance is reserved during casting, the machining allowance is consistent with the inner diameter of the pipeline, the inner wall of the runner of the valve body 1 is of a straight structure, and when the flashboard assembly is fully opened, the flashboard assembly is completely separated from the runner hole, so that when the valve is fully opened, no assembly structure design exists in the runner of the valve body, the flow area of the straight pipeline is maximized, and the flow resistance is low.
The valve body 1 is fixedly connected with the valve cover 17 through a second stud 14, a second nut 15 and a second washer 16, and the valve cover 17 is fixedly connected with the support 30 through a third stud 20, a third nut 21 and a third gasket 22. A middle flange gasket 40 is arranged between the valve body 1 and the valve cover 17, and a first O-shaped ring 41 and a second O-shaped ring 42 are arranged at the inlet and outlet ends of the valve body 1, so that the sealing effect of the joint is ensured.
The lower baffle 4 is of a U-shaped structure with an upward opening, and the lower baffle 4 is fixedly connected with the flashboard retainer 5 through the first bolt 2 and the first gasket 3. The upper baffle 13 is of a U-shaped structure with a downward opening, the lower part of the flashboard retainer 5 is connected with the lower baffle 4, and the upper baffle 13 is fixedly connected with the flashboard retainer 5 through bolts and gaskets.
Lower baffle 4 and last baffle 13 are established the card groove in the card in first valve plate 6, the second valve plate 7 outside and are established the effect to establish first valve plate 6, the second valve plate 7 card respectively in the both sides of flashboard holder 5, because upper and lower baffle only establishes the card to the valve plate, consequently two valve plates still have certain activity space, can realize the effect of buffering that floats.
The flashboard holder 5 is the back taper cross-section, and the first valve plate 6 and the second valve plate 7 of both sides form back taper arrangement structure, utilize the wedge-shaped self sealss structure of formation of two valve plates, and two valve plates insert the flow hole of valve body 1 downwards in, have the advantage that stability is good, sealed effectual.
The inner end of the second valve plate 7 is fixedly connected with one end of the top core 8, the top core 8 is positioned in a through hole in the center of the gate plate retainer 5, and the other end of the top core 8 is matched with the first valve plate 6 in an arc manner. The inner of the first valve plate 6 is provided with an integrated first convex part, the circular arc part of the first convex part is matched with the circular arc of the through hole of the flashboard retainer 5, the inner of the second valve plate 7 is provided with an integrated second convex part, and the circular arc part of the second convex part is matched with the circular arc of the through hole of the flashboard retainer 5.
Through the effect of circular arc cooperation, guarantee that two valve plates have the characteristics that the resistance is little, easy activity when floating. When the wind tunnel is pressurized, operated and overhauled, the valve body can be displaced and deformed to a certain extent due to the pipeline stress generated by the large-size pipeline and the pressure, and the floating type arc flashboard component solves the problem very reliably.
The upper portion of the gate plate holder 5 is fixedly connected with the lower portion of the valve rod 9, specifically, a conical pad 10, a four-open ring 11 and a backing ring 12 are arranged between the gate plate holder 5 and the valve rod 9 from bottom to top in sequence, the backing ring 12 is arranged on an upper baffle 13 in a downward pressing mode, the four-open ring 11 is arranged on the backing ring 12 in a downward pressing mode, the conical pad 10 is arranged on the four-open ring 11 in a downward pressing mode, and the valve rod 9 is arranged on the conical pad 10 in a downward pressing mode.
The valve rod 9 and the flashboard retainer 5 are connected by four open rings and conical cushions, and the flashboard retainer and the auxiliary flashboard are connected and limited by an upper baffle and a lower baffle, so that the valve rod and the flashboard retainer are of a cylindrical pin connecting structure, and the valve rod and the flashboard retainer are simple and convenient to disassemble and do not damage structural parts.
A packing pad 18 and low-leakage packing 19 are arranged between the valve cover 17 and the valve rod 9, the packing pad 18 is positioned at the bottom of a packing groove of the valve cover 17, a plurality of layers of low-leakage packing 19 are positioned at the upper part of the packing pad 18, the valve cover 17 is connected with a packing pressing plate 27, a packing pressing sleeve 26 is downwards pressed on the packing pressing plate 27, the low-leakage packing 19 is downwards pressed on the packing pressing sleeve 26, and the packing pad 18 upwards supports the low-leakage packing 19.
The valve cover 17 is connected with a fourth stud 23, a fourth nut 24 is arranged on the fourth stud 23, a spring pressing sleeve 28 is downwards pressed by the fourth nut 24, and a disc spring 29 is arranged between the spring pressing sleeve 28 and the packing pressing plate 27. The valve rod packing adopts a quantitative compression design, and the pre-tightening stress of the stud component of the packing pressing plate is relaxed due to the self-sealing compressibility of the packing after the equipment runs for a period of time.
The thread section at the upper end of the valve rod 9 is matched with a valve rod nut 31, the valve rod nut 31 is arranged on a thrust ball bearing 32, the upper thrust ball bearing 32 and the lower thrust ball bearing 32 clamp the valve rod nut 31, the thrust ball bearing 32 is arranged at the bottom of a nut seat of a support 30, the support 30 is connected with a gland 34 through a screw 33, and the gland 34 is downwards provided with the thrust ball bearing 32 in a pressing mode.
The thread section at the upper end of the valve rod 9 adopts a double-line trapezoidal thread design, the purpose is to accelerate the overall opening and closing speed of the valve, the opening and closing speed is increased by 50% compared with the common single-line trapezoidal thread, and the closing speed of the main cut-off valve is reliably increased when the wind tunnel runs and is closed emergently.
The valve rod nut 31 adopts an upper thrust ball double bearing design and a lower thrust ball double bearing design, when the main cut-off valve is opened and closed, the thrust friction of the end face of the valve rod nut can be effectively reduced, the valve rod nut adopts an aluminum bronze material and high alloy steel of the valve rod, the phenomenon of 'occlusion' can not occur, the occurrence of the phenomenon of blocking when the valve rod is opened and closed is reduced to the greatest extent, and the thrust moment when the valve rod is opened and closed is effectively reduced, so that the model selection moment of the valve electric actuator is small, and the loss of the actuator is small.
The valve rod nut 31 is designed by adopting a fastener gland structure, and compared with the traditional screw gland design, the invention has the characteristics of convenient disassembly and assembly without damaging parts, and effectively solves the problem of field maintainability of the main cut-off valve.
The foregoing basic embodiments of the invention and their various further alternatives can be freely combined to form multiple embodiments, all of which are contemplated and claimed herein. In the scheme of the invention, each selection example can be arbitrarily combined with any other basic example and selection example.
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 (8)
1. The utility model provides an energy-conserving and easy and simple valve of dismouting maintenance, includes valve body (1), is equipped with the valve plate subassembly in valve body (1), its characterized in that: the valve plate assembly comprises a gate plate holder (5), a first valve plate (6) and a second valve plate (7), the lower part of the gate plate holder (5) is connected with a lower baffle (4), the upper part of the gate plate holder (5) is connected with an upper baffle (13), the lower baffle (4) and the upper baffle (13) clamp the first valve plate (6) and the second valve plate (7) on two sides of the gate plate holder (5) respectively, the inner end of the second valve plate (7) is connected with one end of a top core (8), the top core (8) is positioned in a through hole of the gate plate holder (5), and the other end of the top core (8) is in arc fit with the first valve plate (6);
the valve body (1) is connected with a valve cover (17), the valve cover (17) is connected with a support (30), a flashboard retainer (5) is connected with a valve rod (9), and the valve rod (9) is positioned in the valve cover (17) and the support (30);
flashboard holder (5) and valve rod (9) between be equipped with toper pad (10), four ring opening (11) and backing ring (12), go up that baffle (13) are pressed down and are established backing ring (12), backing ring (12) are pressed down and are established four ring opening (11), four ring opening (11) are pressed down and are established toper pad (10), toper pad (10) are pressed down and are established valve rod (9).
2. The energy-saving valve easy to disassemble, assemble and maintain according to claim 1, characterized in that: the lower baffle (4) is of a U-shaped structure with an upward opening, and the upper baffle (13) is of a U-shaped structure with a downward opening.
3. The energy-saving valve easy to disassemble, assemble and maintain according to claim 1, characterized in that: the gate plate holder (5) is of an inverted cone-shaped cross section, and the first valve plate (6) and the second valve plate (7) form an inverted cone-shaped arrangement structure.
4. The energy-saving valve easy to assemble, disassemble and maintain as claimed in claim 1 or 3, wherein: the inner end of the first valve plate (6) is provided with a first convex part, the first convex part is matched with the circular arc of the through hole of the flashboard retainer (5), the inner end of the second valve plate (7) is provided with a second convex part, and the second convex part is matched with the circular arc of the through hole of the flashboard retainer (5).
5. The energy-saving valve easy to disassemble, assemble and maintain according to claim 1, characterized in that: the valve structure is characterized in that a packing pad (18) and low-leakage packing (19) are arranged between the valve cover (17) and the valve rod (9), the valve cover (17) is connected with a packing pressing plate (27), a packing pressing sleeve (26) is downwards pressed by the packing pressing plate (27), the low-leakage packing (19) is downwards pressed by the packing pressing sleeve (26), the low-leakage packing (19) is upwards supported by the packing pad (18), and the packing pad (18) is located at the bottom of a packing groove of the valve cover (17).
6. The energy-saving valve easy to assemble, disassemble and maintain as claimed in claim 5, wherein: the valve cover (17) is connected with a fourth stud (23), a fourth nut (24) is arranged on the fourth stud (23), a spring pressing sleeve (28) is downwards pressed by the fourth nut (24), and a disc spring (29) is arranged between the spring pressing sleeve (28) and the packing pressing plate (27).
7. The energy-saving valve easy to disassemble, assemble and maintain according to claim 1, characterized in that: the threaded section at the upper end of the valve rod (9) is matched with a valve rod nut (31), the valve rod nut (31) is arranged on a thrust ball bearing (32), the thrust ball bearing (32) is arranged at the bottom of a nut seat of a support (30), the support (30) is connected with a gland (34) through a screw (33), and the gland (34) is downwards pressed with the thrust ball bearing (32).
8. The energy-saving valve easy to disassemble, assemble and maintain according to claim 1, characterized in that: a middle flange gasket (40) is arranged between the valve body (1) and the valve cover (17), and a first O-shaped ring (41) and a second O-shaped ring (42) are arranged at the inlet and outlet ends of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211264636.8A CN115325194B (en) | 2022-10-17 | 2022-10-17 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211264636.8A CN115325194B (en) | 2022-10-17 | 2022-10-17 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
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| Publication Number | Publication Date |
|---|---|
| CN115325194A CN115325194A (en) | 2022-11-11 |
| CN115325194B true CN115325194B (en) | 2023-02-03 |
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| CN202211264636.8A Active CN115325194B (en) | 2022-10-17 | 2022-10-17 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
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| CN115325194A (en) | 2022-11-11 |
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