KR20170084930A - Control valve for micro flow control - Google Patents
Control valve for micro flow control Download PDFInfo
- Publication number
- KR20170084930A KR20170084930A KR1020160004368A KR20160004368A KR20170084930A KR 20170084930 A KR20170084930 A KR 20170084930A KR 1020160004368 A KR1020160004368 A KR 1020160004368A KR 20160004368 A KR20160004368 A KR 20160004368A KR 20170084930 A KR20170084930 A KR 20170084930A
- Authority
- KR
- South Korea
- Prior art keywords
- valve seat
- pivot
- fluid
- lifting
- chamber
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to a control valve for controlling minute flow rate. The valve seat is elastically supported on the valve seat side by a spring to block the valve seat. The valve seat is interposed between the valve seat and the valve seat. The valve seat is interposed between the inlet and the outlet, And a lift pivot for lifting the valve seat by a control signal transmitted from the valve seat so as to allow the fluid to pass through the valve seat, wherein, in a state in which the lift pivot blocks the valve seat, And a lifting pin is provided in the fluid passage for opening the fluid passage by the pressure of the fluid that has entered through the inlet port .
Description
The present invention relates to a control valve for controlling minute flow rate.
There are many different types of valves installed in the pipeline for moving fluids such as various fluids, chemicals, or water or gas to a desired place. Such a valve functions to regulate the flow rate of fluid passing therethrough or to block the flow if necessary, and an optimum designed type is selected for the purpose of use.
Among the various valves described above, the control valve is a valve that controls the flow rate by remotely controlling the degree of opening of the plug to the valve seat. There are various types of control valves, such as a safety valve, a pressure reducing valve, a sequence valve, a throttle valve, a check valve, and a float valve, depending on the object to be controlled.
For example, in Korean Patent Registration No. 10-0892832 (pressure control valve), there are provided a sleeve having a plurality of input / output ports formed therein, a spool provided inside the sleeve, a solenoid portion for driving the spool, And the like.
However, the above-described conventional pressure control valve has a disadvantage in that it is inefficient to be used for controlling a minute hydraulic pressure because of its complicated internal structure and large size.
An object of the present invention is to provide a control valve for controlling a minute flow rate, which has a simple structure and a small number of parts, is easy to maintain and can be used for a low pressure.
According to an aspect of the present invention, there is provided a control valve for controlling minute flow rate, comprising: a body having an inlet and an outlet; a valve seat disposed between the inlet and the outlet for passing a fluid through the inlet; And an elevating pivot which is elastically supported on the valve seat side so as to block the valve seat and which is caused to ascend by a control signal transmitted from the outside to be separated from the valve seat so that the fluid passes through the valve seat, And a fluid passage formed in the fluid passage so as to allow the fluid that has entered the inlet port to pass therethrough to the outlet port side in a state where the valve seat is blocked and the fluid passage is moved by the pressure of the fluid introduced through the inlet port And a lift pin for opening the fluid passage is provided.
Further, the lifting pivot may take the form of extending upwardly in the vertical direction over the valve seat, the fluid passage including: A guide hole extending vertically from a lower end of the lifting pivot; a chamber formed at an upper end of the guide hole; and a side hole extending laterally from the chamber and opened to the periphery of the lifting pivot.
In addition, the elevating pin may include: And a head portion which is accommodated in the chamber in a state of being fixed to the upper end of the rod portion and opens and closes the side hole when the rod is lifted and lowered.
Further, a pin spring for downwardly supporting the head portion of the lifting plate is provided inside the chamber.
The control valve for micro flow rate control according to the present invention is simple in structure and has a small number of parts and is easy to maintain and can be effectively used for a low-pressure flow line.
FIG. 1 is a cross-sectional view illustrating a configuration of a micro-flow control valve according to an embodiment of the present invention. Referring to FIG.
2 is a sectional view showing a part of the structure of the lifting pivot shown in FIG.
Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.
Basically, the micro flow rate
FIG. 1 is a cross-sectional view for explaining an internal configuration of a
As shown in the drawing, the
It is needless to say that the outer pipe is connected to both ends of the
The
In addition, a
The inner surface of the
On the other hand, a
The
The
In addition, the
A
A passage or a gap through which fluid can pass is formed between the outer peripheral surface of the
The
The
When the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
11: Control valve 13: Body
13a:
13c: outlet 15: valve seat
17: guide bushing 19: bonnet
19a: Jaw 23: Lift Pivot
23a:
23c:
23e: pressure jaw 25: spring
27: packing part 29: lift pin
29a:
31: Pin spring
Claims (4)
A valve seat 15 disposed between the inlet port 13b and the outlet port 13c for passing the fluid introduced through the inlet port 13b,
The valve seat 15 is elastically supported by the spring 25 toward the valve seat 15 so that the valve seat 15 is blocked and the valve seat 15 is lifted by a control signal transmitted from the outside, And a lift pivot (23)
In the elevation pivot 23,
A fluid passage is provided which is capable of passing the fluid that has entered the inlet port 13b to the inside thereof and to be discharged to the outlet port 13c in a state where the lifting pivot 23 is blocking the valve seat 15,
Wherein the fluid passage is provided with a lift pin (29) for opening the fluid passage by a pressure of fluid introduced through the inlet (13b).
The lifting pivot 23 takes the form of extending upwardly in the vertical direction in a state spread over the valve seat 15,
The fluid passage comprising:
A guide hole 23d extending vertically from the lower end of the lifting pivot 23,
A chamber 23c formed at an upper end of the guide hole 23d,
And a side hole (23b) extending laterally from the chamber (23c) and opening to the periphery of the lift pivot (23).
The lift pin (29)
A rod portion 29b that can be raised and lowered in the state of being fitted in the guide hole 23d,
And a head portion (29a) which is accommodated in the chamber (23c) while being fixed to the upper end of the rod portion (29b) and opens and closes the side hole (23b) .
Inside the chamber 23c,
And a pin spring (31) for elastically supporting the head portion (29a) of the lifting pin (29) downward is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160004368A KR101799969B1 (en) | 2016-01-13 | 2016-01-13 | Control valve for micro flow control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160004368A KR101799969B1 (en) | 2016-01-13 | 2016-01-13 | Control valve for micro flow control |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170084930A true KR20170084930A (en) | 2017-07-21 |
KR101799969B1 KR101799969B1 (en) | 2017-11-22 |
Family
ID=59462883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020160004368A KR101799969B1 (en) | 2016-01-13 | 2016-01-13 | Control valve for micro flow control |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101799969B1 (en) |
-
2016
- 2016-01-13 KR KR1020160004368A patent/KR101799969B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR101799969B1 (en) | 2017-11-22 |
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E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right |