KR101193842B1 - Opening and closing speed control apparatus for air valve - Google Patents

Opening and closing speed control apparatus for air valve Download PDF

Info

Publication number
KR101193842B1
KR101193842B1 KR1020100050135A KR20100050135A KR101193842B1 KR 101193842 B1 KR101193842 B1 KR 101193842B1 KR 1020100050135 A KR1020100050135 A KR 1020100050135A KR 20100050135 A KR20100050135 A KR 20100050135A KR 101193842 B1 KR101193842 B1 KR 101193842B1
Authority
KR
South Korea
Prior art keywords
air
air valve
opening
main body
speed control
Prior art date
Application number
KR1020100050135A
Other languages
Korean (ko)
Other versions
KR20110130674A (en
Inventor
안병준
이순현
Original Assignee
현대제철 주식회사
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 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020100050135A priority Critical patent/KR101193842B1/en
Publication of KR20110130674A publication Critical patent/KR20110130674A/en
Application granted granted Critical
Publication of KR101193842B1 publication Critical patent/KR101193842B1/en

Links

Images

Landscapes

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

Abstract

The present invention relates to an opening and closing speed control device for an air valve, and more particularly, to an opening and closing speed control device for an air valve that can reduce the impact generated when the supply of the transfer object is started or stopped.
The present invention, the main body is installed in the air flow path of the air valve and the air inlet is formed; And a shut-off part which is movably installed in the main body and is provided with a discharge port through which the air introduced through the suction port is discharged and adjusts the opening degree of the suction port. .

Description

Opening and closing speed control device for air valve {OPENING AND CLOSING SPEED CONTROL APPARATUS FOR AIR VALVE}

The present invention relates to an opening and closing speed control device for an air valve, and more particularly, to an opening and closing speed control device for an air valve that can reduce the impact generated when the supply of the transfer object is started or stopped.

Typical steelmaking consists of a steelmaking process to produce molten iron, a steelmaking process to remove impurities from molten iron, a casting process to solidify the liquid iron, and a rolling process to make iron steel or wire.

The process of making pig iron, which is the previous step in the process of making steel by iron ore, is called steelmaking, and the process of making steel by pig iron is called steelmaking.

The casting process is a process of injecting liquid molten steel into a mold and then cooling and solidifying it while passing through a continuous casting machine to continuously produce an intermediate material such as a slab or a bloom.

In this process, the bloom is converted into a billet (Billet) again through a rolling mill, and processed into a wire rod through a wire mill.

Further, the slab is produced as a heavy plate through a plate rolling mill or as a hot rolled coil or a hot rolled steel plate while passing through a hot rolling mill.

Since the apparatuses performing the process as described above are in contact with the hot work object, a cooling water supply device for supplying the cooling water is provided.

The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

SUMMARY OF THE INVENTION An object of the present invention is to provide an opening / closing speed adjusting device for an air valve, which can reduce an impact generated when a supply of a transfer object is started or stopped.

In order to achieve the above object, the present invention, the main body is installed in the air flow path of the air valve and the inlet port is formed air is introduced; And a shut-off part which is installed to be movable in the main body and is provided with a discharge port through which the air introduced through the suction port is discharged and adjusts the opening degree of the suction port. .

In addition, the air passage, the inlet for supplying compressed air into the air valve; And a discharge port through which air driven by the air valve is discharged; The main body is characterized in that installed in the outlet.

In addition, a step is formed on the inner wall of the main body portion, the blocking portion is characterized in that the sealing portion is provided to be protruded in or out of the main body portion is in close contact with the step.

In addition, the inner end of the blocking portion is formed with the conical seal portion, the outer end of the blocking portion is formed with the operation groove is characterized in that the discharge port is formed on the edge of the blocking portion.

The silencer may be installed in the mounting hole of the main body unit in which the blocking unit is inserted.

In addition, the air passage, the inlet for supplying compressed air into the air valve; And a discharge port through which air driven by the air valve is discharged; The main body is characterized in that it is installed in the inlet.

The opening and closing speed control device for the air valve according to the present invention can adjust the opening and closing speed of the air valve to determine whether the supply of the object to be transported to reduce the impact between the object and the pipe generated when the supply of the object to be transported or cut off There is an advantage to this.

In addition, the opening and closing speed control device for an air valve according to the present invention can be installed in the inlet or outlet of the air valve has the advantage of selectively installing the opening and closing speed control device for the air valve according to the environmental conditions of the place where the air valve is installed There is this.

In addition, the opening and closing speed control device for an air valve according to the present invention has the advantage that can reduce the noise generated by the air to be discharged.

1 is an exploded cross-sectional view showing a mounting structure of the opening and closing speed control device for an air valve according to an embodiment of the present invention.
2 is a cross-sectional view showing the opening and closing speed control device for an air valve according to an embodiment of the present invention.
3 is an operating state diagram showing the opening and closing speed control device for an air valve according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing the opening and closing speed control device for an air valve according to another embodiment of the present invention.
5 is an operation state diagram showing the opening and closing speed control device for an air valve according to another embodiment of the present invention.
Figure 6 is a state diagram showing the inlet mounting structure of the opening and closing speed control device for an air valve according to another embodiment of the present invention.
7 is a use state diagram showing the outlet mounting structure of the opening and closing speed control device for an air valve according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the opening and closing speed control device for an air valve according to the present invention.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is an exploded cross-sectional view showing a mounting structure of the air valve opening and closing speed control apparatus according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the air valve opening and closing speed control apparatus according to an embodiment of the present invention. And, Figure 3 is an operating state diagram showing the opening and closing speed control device for an air valve according to an embodiment of the present invention.

1 to 3, the opening and closing speed control device 100 for an air valve according to an embodiment of the present invention is installed in the air flow path (12, 14) of the air valve 10 and the air inlet ( 32) and a main body portion 30 having air discharge ports 34 formed therein, and a blocking portion 50 installed on the main body portion 30 so as to be movable and adjusting the degree of opening and closing of the suction opening 32. .

The main body 30 is installed in the air passages 12 and 14 of the air valve 10 so that the air passing through the air passages 12 and 14 of the air valve 10 passes through the inlet 32 and the outlet 34. It passes through, and the block 50 is moved to adjust the cross-sectional area of the inlet 32, thereby controlling the flow rate of the air to operate the air valve (10).

Here, the air valve 10 means an on-off valve that is installed in the valve and moves the piston by high pressure air supplied into the valve and opens and closes the valve.

The air passages 12 and 14 of the air valve 10 include an inlet 12 for supplying air into the air valve 10 and a discharge port 14 through which air driven by the air valve 14 is discharged. The main body 30 is installed at the discharge port 14.

When the flow rate of the air discharged from the air valve 10 by the air valve opening and closing speed control device 100 of the present embodiment is lower than the predetermined value of the air supplied into the air valve 10 through the inlet 12 The flow rate is also reduced.

When supplying air to the air valve 10 at the same pressure, if the cross-sectional area of the outlet 14 is small, the flow rate of the discharged air theoretically remains the same while the air discharge rate is increased.

In fact, as the cross-sectional area of the outlet 14 becomes smaller by the blocking portion 50, vortices are generated inside the outlet 14 and the velocity of the air discharged at the interval between the outlet 14 and the blocking portion 50 is higher than the theoretical value. Since it becomes small, the flow rate of the air discharged through the outlet 14 during the unit time becomes small.

Therefore, the opening operation and the closing operation of the flow path opened and closed by the operation of the air valve 10 also proceed slowly at a predetermined speed or less.

Particularly, in the case of the air valve 10 installed in the cooling water supply device installed in the steel mill, whether or not the cooling water is supplied is determined by the opening / closing operation of the air valve 10. By the operation of the air valve 10 it is possible to reduce the speed at which the opening operation proceeds.

In addition, since the closing operation of the air valve 10 proceeds slowly even when the supply of the coolant is stopped, vibration and noise generated when the piston and the coolant collide with the coolant to block the coolant may be reduced.

The main body 30 is formed in a hollow cylindrical shape, and a thread is formed at one end thereof to form an inlet 32 coupled to the outlet 14 of the air valve 10.

Since the discharge hole 34 is formed on the circumferential surface of the main body part 30, the air flowing through the suction hole 32 is changed by the blocking part 50, and discharged to the outside through the discharge hole 34.

Since the advancing direction of the air is about 90 degrees while colliding with the blocking unit 50, the effect of delaying the discharge of the air appears, thereby reducing the flow rate of the air discharged from the air valve 10 more effectively.

A step 36 is formed on the inner wall of the main body 30, and the blocking part 50 is installed to be protruded into the main body 30 and a sealing portion 52 is formed to be in close contact with the step 36.

When the blocking part 50 is moved into the main body part 30 by a user's manipulation, the sealing part 52 and the step 36 are brought into close contact with each other to close the flow path between the suction port 32 and the discharge port 34.

When the blocking part 50 is moved out of the main body part 30, a gap is formed between the sealing part 52 and the step 36, and a flow path through which air passes is formed, and the blocking part 50 is moved into the main body part 30. As it moves to the outside, the cross-sectional area of the flow path increases as the gap between the sealing portion 52 and the step 36 becomes wider.

Therefore, the user can narrow or widen the flow path of the air while moving the blocking unit 50 inside or outside the main body unit 30.

A conical seal 52 is formed at the inner end of the blocking part 50 so as to face the step 36 so that the air flowing through the inlet 32 is inclined to move along the seal 52. The direction of travel is converted to the discharge port 34 side.

In addition, the threaded portion is formed on the circumferential surface of the blocking portion 50 to be engaged with the screw thread formed on the inner wall of the main body portion 30, and an operation groove 54 for inserting a wrench is formed at the outer end of the blocking portion 50. .

Accordingly, when the user inserts the wrench into the operation groove 54 to rotate the wrench, the blocking unit 50 is rotated and moved to the inside or outside of the main body 30.

Looking at the operation of the opening and closing speed control device for an air valve according to an embodiment of the present invention configured as described above are as follows.

First, when the opening operation of the air valve 10 is started, since high pressure air is supplied along the supply pipe 16 connected to the inlet 12, the opening operation is performed by moving the piston installed inside the air valve 10.

The operation air is discharged to the outside of the air valve 10 through the discharge port 14, the discharge flow rate of the air is adjusted while passing through the body portion 30 installed in the discharge port (14).

The flow rate of the air discharged through the outlet 14 can be adjusted by moving the blocking unit 50. When the operator inserts the wrench into the operation groove 54 and then turns the wrench, the blocking unit 50 rotates to move forward or backward. You will reverse.

When the blocking unit 50 is moved to the outside of the main body unit 30, a gap is formed between the sealing unit 52 and the step 36, so that the air discharged along the outlet 14 of the air valve 10 is inlet 32. After flowing into the body portion 30 through the gap between the step 36 and the sealing portion 52 is discharged to the outside through the discharge port 34 rule.

At this time, the air passing through the gap between the step 36 and the sealing portion 52 is moved along the sealing portion 52 is formed to be inclined in a conical shape while the traveling direction is converted to the circumferential surface direction of the main body portion 30 After that, it is discharged along the discharge port 34.

In addition, since the air passing through the gap between the step 36 and the sealing part 52 collides with the sealing part 52, vortices are generated to suppress the discharge of air, thereby passing through the main body part 30. The flow rate of the air, that is, the flow rate of the air discharged during the unit time is reduced.

As described above, when the flow rate of the air discharged from the air valve 10 is reduced, the flow rate of the air supplied to the air valve 10 is also reduced, so that the piston which is operated in proportion to the flow rate of the incoming air is operated slowly below a predetermined value. do.

Therefore, the opening / closing operation of the flow path in which the air valve 10 is installed is slowed below a set value, thereby reducing vibration and noise generated when the moving object collides with the inner wall of the flow path at the beginning of the opening operation or the closing operation.

Figure 4 is a cross-sectional view showing an opening and closing speed control device for an air valve according to another embodiment of the present invention, Figure 5 is an operational state diagram showing the opening and closing speed control device for an air valve according to another embodiment of the present invention, 6 is a state diagram showing the use of the inlet mounting structure of the air valve opening and closing speed adjusting apparatus according to another embodiment of the present invention, Figure 7 is an outlet mounting structure of the air valve opening and closing speed adjusting apparatus according to another embodiment of the present invention Is a use state diagram shown.

4 to 7, the opening / closing speed adjusting device 200 for an air valve according to another embodiment of the present invention is installed in the air passages 12 and 14 of the air valve 10 and the inlet port through which air is introduced ( 132 is formed, the main body 130 and the discharge port 156 is formed to be movable in the main body 130 and the air flowing through the inlet 132 is formed and the degree of opening of the inlet 132 is formed. It includes a blocking unit 150 to adjust.

Since the discharge hole 156 is formed in the blocking unit 150, air introduced through the suction hole 132 formed at one side of the main body unit 130 having a pipe shape passes through the discharge hole 156 to be described later. Characterized in that it is discharged through the mounting hole 138 of 130.

The air flow paths 12 and 14 of the air valve 10 include inlets 12 for supplying compressed air into the air valve 10 and outlets 14 for discharging air driven by the air valve 10. It includes, the main body 130 is installed in the discharge port (14).

When the opening and closing speed control device 200 for the air valve of the present embodiment is installed in the outlet 14 of the air valve 10 to perform the same action as in the embodiment.

In addition, the opening and closing speed control device 200 for the air valve of the present embodiment is discharge port 156 is formed in the blocking portion 150 so that the air passing through the main body 130 is moved in a straight line inlet of the air valve 10 It can be installed at (12).

A step 136 is formed on an inner wall of the main body 130, and the blocking unit 150 is installed to be protruded into or out of the main body 130, and a sealing part 152 is formed to be in close contact with the step 136. do.

It is possible to adjust the opening and closing and opening degree of the inlet 132 by adjusting the distance between the step 136 and the sealing portion 152 while the block 150 is in or out of the main body 130.

A conical seal 152 is formed at the inner end of the blocking unit 150, an operation groove 154 is formed at the outer end of the blocking unit 150, and a discharge hole 156 is formed at the edge of the blocking unit 154. Is formed.

Therefore, the air flowing through the inlet 132 passes through the gap between the step 136 and the sealing unit 152, passes through the discharge port 156, and is discharged to the outside through the mounting hole 138 of the main body 130. .

Since the silencer 300 is installed in the mounting hole 138 of the main body 130 in which the blocking unit 150 is inserted, noise generated by the air passing through the discharge port 156 having a smaller cross-sectional area than the suction port 132 is provided. Can be reduced by the silencer 300.

As a result, it is possible to provide an opening / closing speed adjusting device for an air valve that can reduce an impact generated when a supply of a transfer object is started or stopped.

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 embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

In addition, the opening and closing speed control device for the air valve has been described as an example, but this is merely exemplary, the opening and closing speed control device of the present invention can be used in other products than the air valve.

Accordingly, the true scope of the present invention should be determined by the following claims.

10: air valve 12: inlet
14: outlet 30: main body
32: suction port 34: discharge port
36: step 50: cutout
52: seal 54: operating groove
100: air valve opening and closing speed control device 300: silencer

Claims (6)

A main body installed in the air flow path of the air valve and having an air inlet through which air is introduced; And
A discharging port formed to be movable in the main body and having a discharge port through which the air introduced through the suction port is discharged, and controlling an opening degree of the suction port;
The air flow path,
An inlet for supplying compressed air into the air valve; And
A discharge port through which air driven by the air valve is discharged;
The main body is installed at the outlet;
Opening and closing speed control device for the air valve, characterized in that the silencer is installed in the mounting hole of the main body portion is inserted into the blocking portion to reduce the noise generated by the air passing through the discharge port having a smaller cross-sectional area than the inlet .
delete The method of claim 1,
Steps are formed on the inner wall of the main body portion, and the blocking portion is installed on the inside or outside of the main body portion, the opening and closing speed control device for the air valve, characterized in that the sealing portion is formed in close contact with the step. The method of claim 3,
The cone-shaped sealing portion is formed at the inner end of the blocking portion, the operation groove is formed at the outer end of the blocking portion and the opening and closing speed control device for the air valve, characterized in that the discharge port is formed.
delete The method of claim 1, wherein the air flow path,
An inlet for supplying compressed air into the air valve; And
A discharge port through which air driven by the air valve is discharged;
Opening and closing speed control device for an air valve, characterized in that the main body is installed in the inlet.
KR1020100050135A 2010-05-28 2010-05-28 Opening and closing speed control apparatus for air valve KR101193842B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100050135A KR101193842B1 (en) 2010-05-28 2010-05-28 Opening and closing speed control apparatus for air valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100050135A KR101193842B1 (en) 2010-05-28 2010-05-28 Opening and closing speed control apparatus for air valve

Publications (2)

Publication Number Publication Date
KR20110130674A KR20110130674A (en) 2011-12-06
KR101193842B1 true KR101193842B1 (en) 2012-10-23

Family

ID=45499331

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100050135A KR101193842B1 (en) 2010-05-28 2010-05-28 Opening and closing speed control apparatus for air valve

Country Status (1)

Country Link
KR (1) KR101193842B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015199314A1 (en) * 2014-06-25 2015-12-30 주식회사 포리얼 Air intake/discharge device for noise reduction

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100222261B1 (en) 1996-12-20 1999-10-01 정몽규 Valve for controlling an opening and closing speed of a bus door
KR200379168Y1 (en) 2005-01-07 2005-03-17 수자원기술 주식회사 An Auto drain valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100222261B1 (en) 1996-12-20 1999-10-01 정몽규 Valve for controlling an opening and closing speed of a bus door
KR200379168Y1 (en) 2005-01-07 2005-03-17 수자원기술 주식회사 An Auto drain valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015199314A1 (en) * 2014-06-25 2015-12-30 주식회사 포리얼 Air intake/discharge device for noise reduction

Also Published As

Publication number Publication date
KR20110130674A (en) 2011-12-06

Similar Documents

Publication Publication Date Title
CN104884189B (en) Combination cooling spray nozzle device and the method using its cooling nozzles for controlling continuous casting equipment
KR101193842B1 (en) Opening and closing speed control apparatus for air valve
KR101193840B1 (en) Opening and closing speed control apparatus for air valve
KR20120020496A (en) Apparatus for removing water vapor and control method thereof
CN110049830A (en) Cooling equipment for cold rolling part
JPH0317588B2 (en)
KR101237074B1 (en) Opening and closing valve for descaler
KR100528503B1 (en) A method for controlling the flow of second cooling water in continuous casting processing
CN102671968A (en) Active flow field controlling type five-machine-frame cold-rolling continuous-rolling board surface cleaning method
KR20130085684A (en) A auto door speed reducer of machine tool
KR101298752B1 (en) Pressure control apparatus for opening and closing valve in descaler
KR101298753B1 (en) Opening and closing valve for descaler
KR101237075B1 (en) Opening and closing valve for descaler
KR101167170B1 (en) Guide apparatus for cooler
KR101597717B1 (en) Injector and operating method thereof
KR101277585B1 (en) Nozzle tester for scarfing apparatus
CN210650256U (en) Sand blasting device
CN100372632C (en) Continuous lubricating system for semi-continuous casting of aluminium and aluminium alloy
KR101428947B1 (en) Cone product method of cone valae
US20130112363A1 (en) Temperature control device for a die casting device and corresponding die casting device
KR101717984B1 (en) Apparatus and method for preventing the re-oxidation of molten steel
JP4882628B2 (en) Die-cast molten metal supply device
KR101225711B1 (en) Cooling water drainer for rolling mill
CN205732857U (en) A kind of adjustable pipe die powder blowing device
RU126280U1 (en) DEVICE FOR PROCESSING AN AIR-ABRASIVE SURFACE JET

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee