CN205446731U - Highly -compressed air choke valve - Google Patents
Highly -compressed air choke valve Download PDFInfo
- Publication number
- CN205446731U CN205446731U CN201620224181.0U CN201620224181U CN205446731U CN 205446731 U CN205446731 U CN 205446731U CN 201620224181 U CN201620224181 U CN 201620224181U CN 205446731 U CN205446731 U CN 205446731U
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- China
- Prior art keywords
- valve body
- venthole
- adjusting screw
- valve
- regulation screw
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Abstract
The utility model relates to a highly -compressed air choke valve, including valve body, O shape sealing washer and adjusting screw and lock nut, be equipped with on the valve body inlet port and venthole and with the communicating orifice of inlet port, the orifice communicates with each other with the venthole, adjusting screw connects on the valve body and by O shape sealing washer and body seals soon, the conical surface and the orifice of adjusting screw one end are used for adjusting flow dimension relatively, lock nut connects on adjusting screw spacingly to the adjusting screw after the regulation soon. The utility model discloses simple structure, it is small, can reduce transient flow, can guarantee to enable the reliability of sealing up the compressed air flow again and finely tune at less within range, satisfy the requirement of the pneumatic valve member time of opening and close, vibration/noise reduction improves the operational reliability of pipeline and pneumatic circuit.
Description
Technical field
This utility model relates to a kind of pressure-air choke valve, belongs to gases at high pressure throttle valve technology field.
Background technology
It is usually mounted with multiple pneumatic actuator in gas circuit on ships, and each pneumatic actuator is to control its executive item action by corresponding pneumatic valve member to carry out the operation of correspondence, as pneumatic actuation head supporting on butterfly valve controls the keying of its valve.Each pneumatic valve member is connected with source of the gas by pipeline, is placed restrictions on by space, although can reduce the volume of pneumatic valve member, but pneumatic valve member is necessarily required to increase the bleed pressure guarantee output moment of torsion of pneumatic valve member.Therefore the pressure of source of the gas and flow is excessive that pneumatic valve member can be caused again to open and close excessive velocities, thus the vibrations of the pneumatic valve member caused and noise strengthen, and also can affect the reliability of pipeline and baric systerm simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in construction, and volume is little, can reduce instantaneous delivery, can regulate pneumatic valve member and open and close speed, the pressure-air choke valve of damping noise reduction.
This utility model is that the technical scheme reaching above-mentioned purpose is: a kind of pressure-air choke valve, it is characterized in that: include valve body, O-ring seals and regulation screw and locking nut, described valve body is provided with air inlet and venthole and the throttle orifice communicated with air inlet, throttle orifice communicates with venthole, regulation screw is screwed on valve body and by O-ring seals and valve seal, the conical surface of regulation screw one end is relative with throttle orifice in order to regulate uninterrupted, and locking nut is screwed on regulation screw spacing to the regulation screw after regulation.
This utility model pressure-air choke valve uses valve body and is arranged on valve body the regulation screw that can move axially, the position of the conical surface with the throttle orifice of valve body by changing regulation screw one end, change air overflow section to amass, time in the gas circuit that choke valve is arranged on pneumatic valve member, make gases at high pressure by instantaneous delivery can be reduced after this choke valve, therefore pneumatic valve member can be regulated and open and close speed, simultaneously the most also can damping noise reduction, improve pipeline and the functional reliability of baric systerm.This utility model using regulation screw the conical surface as sealing surface, simple and reasonable for structure, both can guarantee that the reliability of sealing, and compressed air require can have been made again to be finely adjusted in less scope, meet the requirement of pneumatic valve member opening and closing time.This utility model uses regulation screw to be adjusted, and throttle operation is convenient, reduces volume on the premise of ensureing safe enough coefficient as far as possible, it is simple to supporting the use of pneumatic actuator, lightweight.This utility model uses O-ring seals to replace traditional packing seal, simplifies and seals structure, improves the reliability of sealing.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in further detail.
The structural representation of Fig. 1 this utility model pressure-air choke valve.
Wherein: 1 locking nut, 2 regulation screws, 2-1 notch, 2-2 ring groove, 2-3 lead, the 2-4 conical surface, 3 O-ring seals, 4 valve bodies, 4-1 gives vent to anger union joint, 4-2 installing hole, the threaded axle of 4-3,4-4 air inlet, 4-5 throttle orifice, 4-6 venthole.
Detailed description of the invention
As shown in Figure 1, pressure-air choke valve of the present utility model, including valve body 4, O-ring seals 3 and regulation screw 2 and locking nut 1.Valve body 4 is provided with air inlet 4-4 and venthole 4-6 and the throttle orifice 4-5 communicated with air inlet 4-4, throttle orifice 4-5 communicates with venthole 4-6, the aperture of this utility model venthole 4-6 is 1.5～2.5 times of the aperture of throttle orifice 4-5, if the aperture of venthole 4-6 is 2 times of the aperture of throttle orifice 4-5, when causing air flow through choke valve, reduce instantaneous delivery.
As shown in Figure 1, this utility model regulation screw 2 is screwed on valve body 4 and is sealed with valve body 4 by O-ring seals 3, regulation screw 2 is provided with ring groove 2-2, O-ring seals 3 makes regulation screw 2 and valve body 4 realize sealing in being arranged on ring groove 2-2, sealing structure can be simplified, improve the reliability of sealing.As shown in Figure 1, the conical surface 2-4 of this utility model regulation screw 2 one end is relative with throttle orifice 4-5 in order to regulate uninterrupted, because the conical surface 2-4 of regulation screw 2 is as seal face, both the reliability sealed is ensured, compressed air require can be made again to be finely adjusted in less scope, meet the requirement of pneumatic valve member opening and closing time, can be by regulating the axial internal clearance of screw 2, change air overflow section to amass, thus reach throttling and control flow, locking nut 1 is screwed on regulation screw 2 and spacing to the regulation screw 2 after regulation, prevent from regulating screw 2 to loosen because of vibrations, for convenience of the regulation regulating screw 2, as shown in Figure 1, regulation screw 2 top is provided with notch 2-1, this notch can be flat recess or cross recess, convenient use tool operation.
As shown in Figure 1, this utility model regulation screw 2 is provided with lead 2-3, the end face of lead 2-3 is conical surface 2-4, lead 2-3 is relative with throttle orifice 4-5 through pilot hole and the venthole 4-6 of valve body 4, and lead 2-3 and conical surface 2-4 coaxial line, when regulating screw 2 and moving axially, it is ensured that regulation the central axial of screw 2 does not offsets.
As shown in Figure 1, this utility model is for convenience of installing, valve body 4 is provided with screwed installing hole 4-2 in venthole 4-6 side, choke valve is connected with the pipeline after throttling by this installing hole 4-2, valve body 4 has the union joint 4-1 that gives vent to anger of evagination in installing hole 4-2 side, valve body 4 is positioned at air inlet 4-4 side and is provided with threaded axle 4-3, is connected on fore pressure duct by choke valve.
Pressure-air choke valve of the present utility model may be installed on the import and export of butterfly valve pneumatic actuation head, unclamp locking nut 1, rotary current regulation screw 2 moves axially, long-pending to change required air overflow section, realize throttling and control flow, after Flow-rate adjustment completes with locking nut 1 the tightliest, prevent from regulating screw 2 to loosen because of vibrations.This utility model can be used for the compressed air of operating pressure≤4.5MPa.
Claims (4)
1. a pressure-air choke valve, it is characterized in that: include valve body (4), O-ring seals (3) and regulation screw (2) and locking nut (1), described valve body (4) is provided with air inlet (4-4) and venthole (4-6) and the throttle orifice (4-5) communicated with air inlet (4-4), throttle orifice (4-5) communicates with venthole (4-6), regulation screw (2) is screwed in valve body (4) and above and is sealed with valve body (4) by O-ring seals (3), the conical surface (2-4) of regulation screw (2) one end is relative with throttle orifice (4-5) in order to regulate uninterrupted, locking nut (1) is screwed in regulation screw (2) spacing to the regulation screw (2) after regulation.
Pressure-air choke valve the most according to claim 1, it is characterized in that: it is characterized in that: described regulation screw (2) is provided with lead (2-3), the end face of lead (2-3) is the conical surface (2-4), lead (2-3) is relative with throttle orifice (4-5) through the pilot hole of valve body (4) and venthole (4-6), and lead (2-3) and the conical surface (2-4) coaxial line.
Pressure-air choke valve the most according to claim 1, it is characterised in that: it is characterized in that: described venthole (4-6) aperture is that the aperture ratio of throttle orifice (4-5) is at 1.5～2.5 times.
Pressure-air choke valve the most according to claim 1, it is characterized in that: it is characterized in that: described valve body (4) is positioned at venthole (4-6) side and is provided with screwed installing hole (4-2), and valve body (4) is positioned at air inlet (4-4) side and is provided with threaded axle (4-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224181.0U CN205446731U (en) | 2016-03-22 | 2016-03-22 | Highly -compressed air choke valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224181.0U CN205446731U (en) | 2016-03-22 | 2016-03-22 | Highly -compressed air choke valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446731U true CN205446731U (en) | 2016-08-10 |
Family
ID=56574792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620224181.0U Active CN205446731U (en) | 2016-03-22 | 2016-03-22 | Highly -compressed air choke valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110558273A (en) * | 2019-10-15 | 2019-12-13 | 上海海洋大学 | Pond river crab aqueous vapor integrated auxiliary breeding device with microbubbles carried by water |
-
2016
- 2016-03-22 CN CN201620224181.0U patent/CN205446731U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110558273A (en) * | 2019-10-15 | 2019-12-13 | 上海海洋大学 | Pond river crab aqueous vapor integrated auxiliary breeding device with microbubbles carried by water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |