CN214305307U - Novel double-valve-clack sealed scavenging elbow angle type cut-off valve - Google Patents
Novel double-valve-clack sealed scavenging elbow angle type cut-off valve Download PDFInfo
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- CN214305307U CN214305307U CN202023184546.7U CN202023184546U CN214305307U CN 214305307 U CN214305307 U CN 214305307U CN 202023184546 U CN202023184546 U CN 202023184546U CN 214305307 U CN214305307 U CN 214305307U
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Abstract
The utility model discloses a novel double-valve-clack sealed scavenging elbow angle type cut-off valve, which comprises a valve body and a valve rod passing through the valve body, wherein the lower end of the valve rod is provided with a valve clack, the valve clack comprises a first valve clack and a second valve clack, the lower end of the valve rod is sleeved with the first valve clack, a handle cap is arranged between the valve rod and the first valve clack, and two Y-shaped lateral passages and a vertical passage are arranged in the first valve clack; the second valve clack is arranged in a cavity formed by matching the handle cap and the first valve clack, the valve rod penetrates through the second valve clack, a clamping block is arranged at the lower end of the valve rod, and the contact part of the second valve clack and the first valve clack is arranged in a sealing mode. The utility model discloses, can make the total effort that the valve rod receives reduce, promote valve rod life, the valve is opened thrust and is diminished, and the executor that drives the valve and open and close diminishes, and then reduces the whole size of angle formula trip valve, convenient to use and transportation, when the valve was closed, the axial force of valve rod and the pressure of medium acted on first valve clack and second valve clack jointly, had promoted the sealing performance of angle formula trip valve greatly.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to novel sweeping type return bend angle formula trip valve that double valve clack is sealed.
Background
Along with the development of transportation industry, road conditions are more and more complicated and crowded, vehicle friction accidents occur continuously, the discharge valve at the tail part of the tank and a connecting piece of the discharge valve are damaged, liquid in the tank leaks out, and properties are greatly lost. Since various flammable liquids and acid and alkali liquids with severe corrosiveness are loaded and transported in the tank, the liquid leakage also seriously pollutes the environment and even causes combustion and explosion accidents. Therefore, the angle type cut-off valve plays an important role in conveying fluid in the chemical industry.
Among the prior art, chinese utility model patent that publication number is CN210318511U discloses a compound seal angle formula trip valve, including the medium export that is located the medium entry of valve body side and valve body below, medium export top is equipped with the disk seat, connects the valve clack and the disk seat of connecting at the valve rod lower extreme and correspond the cooperation, the disk seat adopt soft or hard composite construction, constitute by metal disk seat and the soft disk seat of connection at its upper surface, valve clack and soft disk seat sealing contact, this kind of structure has following problem:
(1) the thrust required by the opening and closing of the valve clack is very large, and the valve clack is particularly used in the working condition of high pressure difference, so that the service life of the valve rod is seriously influenced;
(2) in the case of a great thrust required by the flap, a large actuator is required, which results in an increase in the size of the shut-off valve, causing considerable inconvenience to the use and replacement of the valve, especially in terms of installation and transport.
In view of this, it is urgently needed to improve the structure of the existing angle type cut-off valve so as to reduce the acting force applied to the valve rod and prolong the service life of the valve rod.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the effort that the structure valve rod of current angle formula trip valve receives is great, the lower problem of valve rod life.
In order to solve the technical problem, the utility model adopts the technical scheme that a novel sealed sweeping type return bend angle type trip valve of double valve clack is provided, include the valve body and pass the valve rod of valve body, the valve rod lower extreme is provided with the valve clack, its characterized in that, the valve clack includes:
the first valve clack is sleeved at the lower end of the valve rod, a handle cap is arranged between the valve rod and the first valve clack, and two Y-shaped lateral passages and a vertical passage are arranged in the first valve clack;
the second valve clack is arranged in a cavity formed by matching the handle cap and the first valve clack, the valve rod penetrates through the second valve clack, a clamping block is arranged at the lower end of the valve rod, and the contact part of the second valve clack and the first valve clack is arranged in a sealing mode.
In the above technical scheme, preferably, a sealed bellows protection sleeve is arranged on the valve rod, and the bellows protection sleeve is formed by welding a metal bellows expansion joint and metal rings at two ends.
In the above technical scheme, preferably, the valve body is of a sweeping flow type bent pipe structure, and the lower end of the valve body is provided with a valve seat and is connected with a lower connecting pipeline.
In the above technical solution, preferably, an actuator is fixedly arranged at the upper end of the valve body, and the actuator controls the valve rod to move up and down.
In the above technical scheme, preferably, a packing is arranged between the valve body and the valve rod, a packing pressing sleeve is arranged above the packing, a packing pressing plate is fixed above the packing pressing sleeve, the packing pressing plate is fixedly connected with the actuator through a bolt, and the actuator is fixedly connected with the valve body through a bolt.
In the above technical solution, preferably, the metal ring of the bellows protective sheath is clamped in the filler.
In the above technical solution, preferably, the filler includes an upper section filler and a lower section filler, and a filler spacer is disposed between the upper section filler and the lower section filler.
In the above technical solution, preferably, a flushing valve is connected to the cleaning opening of the valve body, and the flushing valve is obliquely arranged.
In the above technical solution, preferably, a size of the first valve flap is larger than a size of the valve seat, and a size of the second valve flap is larger than a size of the vertical passage.
In the above technical solution, preferably, the bellows expansion joint of the bellows protective sheath is made of high strength metal, the V-shaped expansion joint has a downward bevel, and the bevel is 60 degrees.
Compared with the prior art, the novel double-valve-clack sealed scavenging elbow corner type cut-off valve comprises a valve body and a valve rod penetrating through the valve body, wherein the lower end of the valve rod is provided with a valve clack, the valve clack comprises a first valve clack and a second valve clack, the lower end of the valve rod is sleeved with the first valve clack, a handle cap is arranged between the valve rod and the first valve clack, and two Y-shaped lateral passages and a vertical passage are arranged in the first valve clack; the second valve clack is arranged in a cavity formed by matching the handle cap with the first valve clack, the valve rod penetrates through the second valve clack, a clamping block is arranged at the lower end of the second valve clack, the contact part of the second valve clack and the first valve clack is arranged in a sealing manner, so that when the valve rod controls the valve clack, the second valve clack and a vertical channel are opened firstly, the pressure difference between an inlet and an outlet of the valve is reduced, the force of a medium acting on the first valve clack is far smaller than the force of the medium acting on the valve clack when a single valve clack is directly adopted, namely the total acting force exerted on the valve rod is reduced, the service life of the valve rod is prolonged, the valve opening thrust is reduced, the valve is opened more conveniently, an actuator for driving the valve to open and close is correspondingly reduced, the overall size of the angle type cut-off valve is reduced, the use and transportation are facilitated, the user experience is improved, and when the valve is closed, the axial force of the valve rod and the pressure of the medium act on the first valve clack and the second valve clack together, the sealing performance of the angle type cut-off valve is greatly improved.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments of the present invention or the technical solutions in the prior art will be briefly described and explained below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a sectional view of a scavenging elbow angular cut-off valve with a novel double-valve-clack seal in the utility model;
FIG. 2 is a partial enlarged view of the position A of the scavenging elbow angular cut-off valve with the novel double-valve-clack seal of the utility model;
FIG. 3 is a sectional view of the valve body part of the scavenging elbow angular cut-off valve with the novel double-valve-clack seal of the present invention;
fig. 4 is a perspective view of the bellows protective sleeve of the scavenging elbow angle type cut-off valve sealed by the novel double valve clacks of the utility model.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
the automatic control valve comprises a valve body 1, a valve rod 2, a first valve clack 3, a handle cap 4, a lateral channel 5, a vertical channel 6, a second valve clack 7, a clamping block 8, a corrugated pipe protective sleeve 9, a valve seat 10, a lower connecting pipeline 11, an actuator 12, a filler 13, a filler pressing sleeve 14, a filler pressing plate 15, a filler spacer sleeve 16 and a flushing valve 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In addition, the terms herein: the references to "inner, outer", "front, rear", "left, right", "vertical, horizontal", "top, bottom", etc. are made based on the orientation or positional relationship shown in the drawings and are intended only to facilitate the description of the application and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the application.
The utility model provides a novel two valve clacks are sealed sweep flow type return bend angle formula trip valve can reduce the effort that the valve rod received, promotes valve rod life's purpose. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 4, the utility model provides a pair of novel sealed sweeping flow type return bend angle type trip valve of double valve clacks, including valve body 1 and the valve rod 2 that passes valve body 1, the 2 lower extremes of valve rod are provided with the valve clack, and the valve clack includes:
the first valve clack 3 is sleeved at the lower end of the valve rod 2, a handle cap 4 is arranged between the valve rod 2 and the first valve clack 3, and two Y-shaped lateral passages 5 and a vertical passage 6 are arranged in the first valve clack 3;
the second valve clack 7 is arranged in a cavity formed by the handle cap 4 and the first valve clack 3 in a matched mode, the valve rod 2 penetrates through the second valve clack 7, a clamping block 8 is arranged at the lower end of the valve rod, and the contact position of the second valve clack 7 and the first valve clack 3 is arranged in a sealing mode.
In the embodiment, the valve clacks are arranged into the first valve clack 3 and the second valve clack 7, the two Y-shaped lateral passages 5 and the two Y-shaped vertical passages 6 are arranged in the first valve clack 3, the first valve clack 3 and the handle cap 4 are matched to form a cavity, the cavity is communicated with the two lateral passages 5 and the two vertical passages 6, and the valve rod 2 penetrates through the second valve clack 7 and is clamped by the clamping block 8, so that when the valve rod 2 controls the valve clacks, the second valve clack 7 and the vertical passages 6 are opened firstly, the pressure difference between the inlet and the outlet of the valve is reduced, the force of a medium acting on the first valve clack 3 is far smaller than the force of the medium acting on the valve clack when a single valve clack is directly adopted, namely the total acting force of the valve rod 2 is reduced, the service life of the valve rod 2 is prolonged, the valve opening thrust is reduced, the valve is more convenient to open, the actuator 12 for opening and closing the valve is correspondingly reduced, and further the overall size of the angle type cut-off valve is reduced, convenient to use and transportation promote user experience, and when the valve was closed, the axial force of valve rod 2 and the pressure of medium acted on first valve clack 3 and second valve clack 7 jointly, had promoted the sealing performance of angle formula trip valve greatly.
Specifically, the valve is in a closed state under an initial condition, a medium in the control pipeline flows into the valve body 1, enters an inner cavity of the first valve clack 3 through the lateral channel 5 on the first valve clack 3, the control valve rod 2 moves upwards to drive the second valve clack 7 to open first, the seal at the lower end of the second valve clack 7 is opened, the medium flows out through the second valve clack 7, the pressure difference at two ends of the valve is reduced rapidly, the second valve clack 7 is opened continuously until the second valve clack 7 is opened completely, the valve rod 2 rises continuously to drive the first valve clack 3 to open, the seal between the first valve clack 3 and the valve seat 10 is opened, and the valve is opened completely. The acting force borne by the valve rod 2 is the sum of the force required for opening the second valve clack 7 and the force of the medium acting on the first valve clack 3, so that after the second valve clack 7 is opened, the pressure difference between the inlet and the outlet of the valve is reduced, the first valve clack 3 is opened, and the force of the medium acting on the first valve clack 3 is far smaller than the force of the medium acting on the valve clack when the single valve clack is directly adopted.
The fixture block 8 and the valve rod 2 can be directly connected through threads.
As shown in fig. 1 and 4, in an embodiment of the present invention, preferably, a sealed bellows protection sleeve 9 is disposed on the valve rod 2, and the bellows protection sleeve 9 is formed by welding a metal bellows expansion joint and metal rings at two ends.
In this embodiment, be provided with sealed bellows protective sheath 9 on the valve rod 2, completely isolated with medium and valve rod 2 through 2 metal rings from top to bottom, overcome the scale deposit on the valve rod 2 and lead to the phenomenon of valve rod 2 to open and close the difficulty to take place to reduce the problem that valve rod 2 blocked owner, promoted the security and the stability of angle formula trip valve.
As shown in fig. 3, in an embodiment of the present invention, preferably, the valve body 1 is a sweep-flow type elbow structure, and the lower end of the valve body 1 is provided with a valve seat 10 and connected with a lower connecting pipe 11.
In this embodiment, in the initial state of the valve, the bottom of the first valve flap 3 is tightly attached to the valve seat 10 to ensure the sealing performance of the angle type cut-off valve, and the lower connecting pipeline 11 is fixedly connected with the valve body 1 through a bolt.
In an embodiment of the present invention, preferably, an actuator 12 is fixedly disposed at the upper end of the valve body 1, and the actuator 12 controls the valve rod 2 to move up and down.
In an embodiment of the present invention, preferably, a packing 13 is disposed between the valve body 1 and the valve rod 2, a packing pressing sleeve 14 is disposed above the packing 13, a packing pressing plate 15 is fixed above the packing pressing sleeve 14, the packing pressing plate 15 is connected to the actuator 12 through a bolt, and the actuator 12 is connected to the valve body 1 through a bolt.
Wherein the actuator 12 may be a pneumatic actuator.
In this embodiment, the packing pressing plate 15 is located above the packing pressing sleeve 14, the packing pressing sleeve 14 is arranged above the packing 13 and can press the packing 13, the medium is prevented from leaking on the surface of the valve rod 2 by an elastic method of the packing 13, the sealing performance of the angle type cut-off valve is effectively improved, the packing pressing plate 15 is fixedly connected with the actuator 12 through bolts, the actuator 12 is fixedly connected with the valve body 1 through bolts, the problem that the actuator 12 falls off is avoided, and the stability and the reliability of the angle type cut-off valve are indirectly ensured.
In one embodiment of the present invention, the metal ring of the bellows shield 9 is preferably clamped within the packing 13.
In this embodiment, the metal ring chucking of bellows protective sheath 9 is on packing 13, and packing 13 presses on bellows protective sheath 9, compresses tightly the gland of packing 13 through the hexagon nut of screwing, and on decurrent thrust transmitted the metal ring, can prevent effectively that bellows protective sheath 9 is not hard up, promotes the stability of bellows protective sheath 9, avoids medium and valve rod 2 contact.
In an embodiment of the present invention, preferably, the filler 13 includes an upper filler 13 and a lower filler 13, and a filler spacer 16 is disposed between the upper filler 13 and the lower filler 13.
In an embodiment of the present invention, preferably, the cleaning opening of the valve body 1 is connected and provided with a flushing valve 17, and the flushing valve 17 is arranged obliquely.
In this embodiment, when the fluid medium flowing through the valve contains certain particles, the medium enters the valve cavity of the second valve flap 7 through the lateral passage 5 of the first valve flap 3, which may cause a certain amount of slag in the valve cavity of the second valve flap 7, and affect the normal opening and closing of the second valve flap 7. The flushing opening of the flushing valve 17 is inclined at an angle corresponding to the angle of inclination of the lateral passage 5 of the first flap 3, which may be 15 °. When the flushing valve 17 is opened, water with the pressure of 0.4-0.6MPa can directly flush the inner cavity of the second valve flap 7 along the lateral channel 5 of the first valve flap 3 through an external water source, so that the slag accumulation in the inner cavity of the second valve flap 7 is reduced. In addition, the water flow speed of the flushing water flow is faster and the pressure is stronger due to the inclination of a certain angle. Meanwhile, the area of dead angles between the valve body 1 and the valve seat 10 is smaller, and a certain flushing effect is achieved on granular media accumulated on the lower portion of the valve body 1 and the upper plane of the valve seat 10.
In one embodiment of the present invention, it is preferred that the size of the first valve flap 3 is larger than the size of the valve seat 10 and the size of the second valve flap 7 is larger than the size of the vertical channel 6.
In an embodiment of the present invention, preferably, the bellows joint of the bellows sheath 9 is made of high strength metal, and the V-shaped joint is inclined downward at an oblique angle of 60 degrees.
In this embodiment, the smooth oblique wall that inclines is unfavorable for the adhesion of medium, and under the effect of gravity, the medium can be along the oblique wall landing, and in addition, when the valve core rises and compresses bellows telescopic joint, 2 adjacent oblique walls are closed, have the pinch-off action to the medium that remains on the oblique wall, reduce bellows telescopic joint outside medium and adhere to.
The utility model relates to a novel double-valve-clack sealed scavenging type elbow angle type cut-off valve, which comprises a valve body and a valve rod passing through the valve body, wherein the lower end of the valve rod is provided with a valve clack, the valve clack comprises a first valve clack and a second valve clack, the lower end of the valve rod is sleeved with the first valve clack, a handle cap is arranged between the valve rod and the first valve clack, and two Y-shaped lateral passages and a vertical passage are arranged in the first valve clack; the second valve clack is arranged in a cavity formed by matching the handle cap and the first valve clack, the valve rod penetrates through the second valve clack and is provided with a clamping block at the lower end, and the contact part of the second valve clack and the first valve clack is arranged in a sealing way, so that when the valve rod controls the valve clack, the second valve clack and a vertical channel are firstly opened, the pressure difference between the inlet and the outlet of the valve is reduced, the force of a medium acting on the first valve clack is far smaller than the force of the medium acting on the valve clack when a single valve clack is directly adopted, namely the total acting force borne by the valve rod is reduced, the service life of the valve rod is prolonged, the valve opening thrust is reduced, the valve is more convenient to open, an actuator for driving the valve to open and close is correspondingly reduced, the overall size of the angle type cut-off valve is further reduced, the use and the transportation are facilitated, the user experience is improved, and when the valve is closed, the axial force of the valve rod and the pressure of the medium jointly act on the first valve clack and the second valve clack, the sealing performance of the angle type cut-off valve is greatly improved.
Finally, it should be noted that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present application can implement, so that the present application has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present application without affecting the efficacy and the achievable purpose of the present application.
As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (10)
1. The utility model provides a novel two valve clacks are sealed sweep a class type return bend angle formula trip valve, include the valve body and pass the valve rod of valve body, the valve rod lower extreme is provided with the valve clack, its characterized in that, the valve clack includes:
the first valve clack is sleeved at the lower end of the valve rod, a handle cap is arranged between the valve rod and the first valve clack, and two Y-shaped lateral passages and a vertical passage are arranged in the first valve clack;
the second valve clack is arranged in a cavity formed by matching the handle cap and the first valve clack, the valve rod penetrates through the second valve clack, a clamping block is arranged at the lower end of the valve rod, and the contact part of the second valve clack and the first valve clack is arranged in a sealing mode.
2. The novel double-valve-clack sealed scavenging elbow angular cut-off valve as claimed in claim 1, wherein a sealed bellows protective sleeve is arranged on the valve rod, and the bellows protective sleeve is formed by welding a metal bellows expansion joint and metal rings at two ends.
3. The novel double-clack sealed scavenging elbow angle type cut-off valve as claimed in claim 1, wherein the valve body is in a scavenging elbow structure, a valve seat is arranged at the lower end of the valve body, and a lower connecting pipeline is connected with the valve seat.
4. The novel double-clack sealed scavenging elbow angular cut-off valve as claimed in claim 2, wherein an actuator is fixedly arranged at the upper end of the valve body, and the actuator controls the valve rod to move up and down.
5. The novel double-valve-clack sealed scavenging elbow angular cut-off valve as claimed in claim 4, wherein a filler is arranged between the valve body and the valve rod, a filler pressing sleeve is arranged above the filler, a filler pressing plate is fixed above the filler pressing sleeve, the filler pressing plate is fixedly connected with the actuator through a bolt, and the actuator is fixedly connected with the valve body through a bolt.
6. The novel double-clack sealed scavenging elbow corner-type shut-off valve according to claim 5, characterized in that the metal ring of the bellows protective sleeve is clamped in the packing.
7. The novel double-clack sealed scavenging elbow angular cut-off valve as claimed in claim 5, wherein the filler comprises an upper section filler and a lower section filler, and a filler spacer is arranged between the upper section filler and the lower section filler.
8. The novel double-clack sealed scavenging elbow angle type cut-off valve as claimed in claim 1, characterized in that a flushing valve is connected to the cleaning port of the valve body, and the flushing valve is arranged obliquely.
9. The novel double-flap sealed scavenging elbow angle shut-off valve of claim 3, wherein the outer diameter dimension of the first flap is greater than the inner diameter dimension of the valve seat, and the outer diameter dimension of the second flap is greater than the inner diameter dimension of the vertical passage.
10. The novel double-clack sealed scavenging elbow angle type cut-off valve as claimed in claim 2, wherein the corrugated expansion joint of the corrugated pipe protective sleeve is made of high-strength metal, the inclined opening of the V-shaped expansion joint faces downwards, and the inclined angle is 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023184546.7U CN214305307U (en) | 2020-12-25 | 2020-12-25 | Novel double-valve-clack sealed scavenging elbow angle type cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023184546.7U CN214305307U (en) | 2020-12-25 | 2020-12-25 | Novel double-valve-clack sealed scavenging elbow angle type cut-off valve |
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| Publication Number | Publication Date |
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| CN214305307U true CN214305307U (en) | 2021-09-28 |
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| CN202023184546.7U Active CN214305307U (en) | 2020-12-25 | 2020-12-25 | Novel double-valve-clack sealed scavenging elbow angle type cut-off valve |
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| CN (1) | CN214305307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098733A1 (en) * | 2022-11-08 | 2024-05-16 | 苏州纽威阀门股份有限公司 | Regulating valve |
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2020
- 2020-12-25 CN CN202023184546.7U patent/CN214305307U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098733A1 (en) * | 2022-11-08 | 2024-05-16 | 苏州纽威阀门股份有限公司 | Regulating valve |
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