CN114992337A - Forged steel stop valve - Google Patents

Forged steel stop valve Download PDF

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Publication number
CN114992337A
CN114992337A CN202210699436.9A CN202210699436A CN114992337A CN 114992337 A CN114992337 A CN 114992337A CN 202210699436 A CN202210699436 A CN 202210699436A CN 114992337 A CN114992337 A CN 114992337A
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CN
China
Prior art keywords
valve
valve rod
cover
filler
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210699436.9A
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Chinese (zh)
Inventor
陈旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Xuxin Valve Manufacturing Co ltd
Original Assignee
Sichuan Xuxin Valve Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Xuxin Valve Manufacturing Co ltd filed Critical Sichuan Xuxin Valve Manufacturing Co ltd
Priority to CN202210699436.9A priority Critical patent/CN114992337A/en
Publication of CN114992337A publication Critical patent/CN114992337A/en
Pending legal-status Critical Current

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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
    • F16K1/02—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 screw-spindle
    • F16K1/04—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 screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
    • 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
    • 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
    • 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
    • F16K31/60—Handles
    • 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
    • F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)

Abstract

The invention discloses a forged steel stop valve, belongs to the technical field of stop valves, and aims to provide a forged steel stop valve which solves the problems of poor sealing performance and short service life of a gasket of the conventional stop valve. It includes the valve body, the flange is installed at the valve body both ends, install valve clack and valve rod in the cavity of valve body, the valve clack is connected with the one end of valve rod, the hand wheel is installed to the other end of valve rod, it is equipped with the valve gap still to overlap on the valve rod, the valve gap passes through the bolt and installs in the valve body upper end, it is provided with the filler to lie in the valve rod outside in the valve gap, the filler top is provided with the packing and presses the cover, the packing is pressed the cover and is located on the valve rod, packing is pressed the cover upper end and still is established and install gland, the gland cover is located on the valve rod, lie in the gland top on the valve rod and still install valve rod nut, the inner wall that the valve gap is located the filler below is provided with the screw thread with valve rod screw thread drive. The invention is suitable for the forged steel stop valve.

Description

Forged steel stop valve
Technical Field
The invention belongs to the technical field of stop valves, and particularly relates to a forged steel stop valve.
Background
A stop valve is also called a stop valve and belongs to a forced sealing type valve. The valve is easy to manufacture and convenient to maintain, is suitable for medium and low pressure environments and high pressure environments, and is the most widely used valve.
The existing stop valve is opened and closed through multiple actions or is corroded by a medium in the using process, so that a sealing surface is easily damaged, the sealing property of the stop valve is poor, and the condition of medium leakage is easily caused. At present stage adopts the gasket as the sealing member more, but current gasket is mostly single material, can't satisfy corrosion resistance and wearability simultaneously, and life is shorter.
Disclosure of Invention
The invention aims to: the utility model provides a forged steel stop valve, solves the relatively poor, the short problem of gasket life of current stop valve leakproofness.
The technical scheme adopted by the invention is as follows:
the utility model provides a forged steel stop valve, includes the valve body, the flange is installed at the valve body both ends, install valve clack and valve rod in the cavity of valve body, the valve clack is connected with the one end of valve rod, the hand wheel is installed to the other end of valve rod, still the cover is equipped with the valve gap on the valve rod, the valve gap passes through the bolt and installs in the valve body upper end, it is provided with the filler to lie in the valve rod outside in the valve gap, the filler top is provided with the packing and presses the cover, the packing is pressed the cover and is located on the valve rod, packing is pressed the cover upper end and still is established and install gland, gland cover is located on the valve rod, lie in the gland top on the valve rod and still install valve rod nut, the inner wall that the valve gap is located the packing below is provided with the screw thread transmission with the valve rod.
Furthermore, a gasket is arranged on the contact surface of the valve body and the valve cover.
Furthermore, the gasket is made of flexible graphite and stainless steel.
Furthermore, the filler is made of flexible graphite.
Furthermore, the material of the bolt is one of ASTM A193-B7, A320-B8 and A193-B8M.
Further, the valve rod nut is made of copper alloy.
Furthermore, the material of the hand wheel is ASTM A47-32510.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the valve comprises a valve body, wherein flanges are installed at two ends of the valve body, a valve clack and a valve rod are installed in a cavity of the valve body, the valve clack is connected with one end of the valve rod, a hand wheel is installed at the other end of the valve rod, a valve cover is further sleeved on the valve rod and is installed at the upper end of the valve body through a bolt, packing is arranged outside the valve rod in the valve cover, a packing pressing sleeve is arranged above the packing and is sleeved on the valve rod, a packing gland is further installed at the upper end of the packing pressing sleeve and is sleeved on the valve rod, a valve rod nut is further installed above the packing gland on the valve rod, and threads in threaded transmission with the valve rod are arranged on the inner wall of the valve cover below the packing.
Through this setting, rotate the hand wheel and drive the valve rod and rotate, valve rod and valve gap screw thread transmission, along vertical direction upward movement, the valve clack of connecting on the valve rod follows upward movement to make the pipeline intercommunication in the valve body cavity, make the fluid can circulate smoothly. When fluid needs to be cut off, the hand wheel is rotated reversely, the valve rod rotates reversely, the valve rod and the valve cover are in threaded transmission and move downwards along the vertical direction, the valve clack moves downwards to reset to a cut-off position, and then a pipeline in the valve body cavity can be cut off, so that the effect of cutting off the fluid is achieved. The gasket is installed with the contact surface of valve body and valve gap and can promote the leakproofness of stop valve greatly, adopts the gasket of flexible graphite and stainless steel combination, has not only promoted the corrosion resistance of gasket, has still strengthened the wear-resisting effect of gasket, has prolonged the life of gasket greatly. Set up the filler simultaneously in the valve gap and can prevent effectively that the fluid from revealing along the valve rod, further promote the sealed effect of stop valve, it is poor effectively to have solved the sealed effect of current stop valve, and the problem of leaking easily appears in the fluid.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive efforts, wherein:
FIG. 1 is a schematic structural view of the present invention;
the labels in the figure are: 1-flange, 2-valve body, 3-valve clack, 4-valve rod, 5-gasket, 6-valve cover, 7-bolt, 8-packing, 9-packing pressing sleeve, 10-packing pressing cover, 11-valve rod nut and 12-handwheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: reference numerals and letters designate similar items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention usually place when in use, and are simply used for simplifying the description of the present invention, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; mechanical connection or electrical connection can be realized; the two original pieces can be directly connected or indirectly connected through an intermediate medium, or the two original pieces can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a forged steel stop valve, includes the valve body, the flange is installed at the valve body both ends, install valve clack and valve rod in the cavity of valve body, the valve clack is connected with the one end of valve rod, the hand wheel is installed to the other end of valve rod, still the cover is equipped with the valve gap on the valve rod, the valve gap passes through the bolt and installs in the valve body upper end, it is provided with the filler to lie in the valve rod outside in the valve gap, the filler top is provided with the packing and presses the cover, the packing is pressed the cover and is located on the valve rod, packing is pressed the cover upper end and still is established and install gland, gland cover is located on the valve rod, lie in the gland top on the valve rod and still install valve rod nut, the inner wall that the valve gap is located the packing below is provided with the screw thread transmission with the valve rod.
Furthermore, a gasket is arranged on the contact surface of the valve body and the valve cover.
Furthermore, the gasket is made of flexible graphite and stainless steel.
Furthermore, the filler is made of flexible graphite.
Furthermore, the material of the bolt is one of ASTM A193-B7, A320-B8 and A193-B8M.
Further, the valve rod nut is made of copper alloy.
Furthermore, the material of the hand wheel is ASTM A47-32510.
In the implementation process of the invention, the hand wheel is rotated to drive the valve rod to rotate, the valve rod and the valve cover are in threaded transmission and move upwards along the vertical direction, and the valve clack connected on the valve rod moves upwards along with the valve rod, so that the pipelines in the cavity of the valve body are communicated, and fluid can smoothly circulate. When fluid needs to be cut off, the hand wheel is rotated reversely, the valve rod rotates reversely, the valve rod and the valve cover are in threaded transmission and move downwards along the vertical direction, the valve clack moves downwards to reset to a cut-off position, and then a pipeline in the valve body cavity can be cut off, so that the effect of cutting off the fluid is achieved. The gasket is installed with the contact surface of valve body and valve gap and can promote the leakproofness of stop valve greatly, adopts the gasket of flexible graphite and stainless steel combination, has not only promoted the corrosion resistance of gasket, has still strengthened the wear-resisting effect of gasket, has prolonged the life of gasket greatly. Set up simultaneously in the valve gap and pack and can prevent effectively that the fluid from revealing along the valve rod, further promote the sealed effect of stop valve, effectively solved current stop valve sealed effect poor, the problem of leakage easily appears in the fluid. And a gasket is also arranged on the contact surface of the valve body and the valve cover. The gasket is made of flexible graphite and stainless steel. The filler is made of flexible graphite. The material of the bolt is one of ASTM A193-B7, A320-B8 and A193-B8M. The valve rod nut is made of copper alloy. The material of the hand wheel is ASTM A47-32510.
Example 1
The utility model provides a forged steel stop valve, includes the valve body, the flange is installed at the valve body both ends, install valve clack and valve rod in the cavity of valve body, the valve clack is connected with the one end of valve rod, the hand wheel is installed to the other end of valve rod, still the cover is equipped with the valve gap on the valve rod, the valve gap passes through the bolt and installs in the valve body upper end, it is provided with the filler to lie in the valve rod outside in the valve gap, the filler top is provided with the packing and presses the cover, the packing is pressed the cover and is located on the valve rod, packing is pressed the cover upper end and still is established and install gland, gland cover is located on the valve rod, lie in the gland top on the valve rod and still install valve rod nut, the inner wall that the valve gap is located the packing below is provided with the screw thread transmission with the valve rod.
Example 2
In addition to the embodiment 1, a gasket is also arranged on the contact surface of the valve body and the valve cover.
Example 3
On the basis of the above embodiment, the gasket is made of flexible graphite and stainless steel.
Example 4
On the basis of the above embodiment, the filler is made of flexible graphite.
Example 5
On the basis of the above embodiment, the material of the bolt is one of ASTM A193-B7, A320-B8 and A193-B8M.
Example 6
On the basis of the above embodiment, the valve stem nut is made of copper alloy.
Example 7
On the basis of the above embodiment, the material of the handwheel is ASTM A47-32510.
The above description is an embodiment of the present invention. The foregoing is a preferred embodiment of the present invention, and the preferred embodiments in the preferred embodiments can be combined and used in any combination if not obviously contradictory or prerequisite to a certain preferred embodiment, and the specific parameters in the embodiments and examples are only for the purpose of clearly illustrating the verification process of the invention and are not intended to limit the patent protection scope of the present invention, which is subject to the claims and all the equivalent structural changes made by the content of the description and the drawings of the present invention are also included in the protection scope of the present invention.

Claims (7)

1. The forged steel stop valve is characterized by comprising a valve body (2), flanges (1) are installed at two ends of the valve body (2), a valve clack (3) and a valve rod (4) are installed in a cavity of the valve body (2), the valve clack (3) is connected with one end of the valve rod (4), a hand wheel (12) is installed at the other end of the valve rod (4), a valve cover (6) is further sleeved on the valve rod (4), the valve cover (6) is installed at the upper end of the valve body (2) through a bolt (7), filler (8) is arranged outside the valve rod (4) in the valve cover (6), a filler pressing sleeve (9) is arranged above the filler (8), the filler pressing sleeve (9) is sleeved on the valve rod (4), a filler gland (10) is further installed at the upper end of the filler pressing sleeve (9), and the filler gland (10) is sleeved on the valve rod (4), and a valve rod nut (11) is further mounted above the packing gland (10) on the valve rod (4), and a thread in thread transmission with the valve rod (4) is arranged on the inner wall of the valve cover (6) below the packing (8).
2. A forged steel stop valve according to claim 1, wherein the contact surface of said valve body (2) and said valve cover (6) is further provided with a gasket (5).
3. A forged steel shut-off valve according to claim 2, wherein said gasket (5) is made of flexible graphite and stainless steel.
4. A forged steel shut-off valve according to claim 1, wherein said filler (8) is of flexible graphite.
5. A forged steel shut-off valve according to claim 1, wherein said bolt (7) is of one of ASTM a193-B7, a320-B8, a 193-B8M.
6. A forged steel shut-off valve according to claim 1, wherein said stem nut (11) is of copper alloy.
7. A forged steel shut-off valve according to claim 1, wherein said hand wheel (12) is of ASTM a 47-32510.
CN202210699436.9A 2022-06-20 2022-06-20 Forged steel stop valve Pending CN114992337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210699436.9A CN114992337A (en) 2022-06-20 2022-06-20 Forged steel stop valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210699436.9A CN114992337A (en) 2022-06-20 2022-06-20 Forged steel stop valve

Publications (1)

Publication Number Publication Date
CN114992337A true CN114992337A (en) 2022-09-02

Family

ID=83034674

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210699436.9A Pending CN114992337A (en) 2022-06-20 2022-06-20 Forged steel stop valve

Country Status (1)

Country Link
CN (1) CN114992337A (en)

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