KR200475392Y1

KR200475392Y1 - A jig for disassembling of orifice plate

Info

Publication number: KR200475392Y1
Application number: KR2020130007177U
Authority: KR
Inventors: 이재봉; 정우영
Original assignee: 주식회사 한국가스기술공사
Priority date: 2013-08-27
Filing date: 2013-08-27
Publication date: 2014-11-28

Abstract

The present design utilizes a dedicated jig for orifice plate disassembly to allow the orifice plate to be quickly removed from the orifice plate carrier in a convenient manner without breakage.
The jig for orifice plate disassembly according to the present invention comprises a first jig body having a clamping portion for gripping a part of an edge of an orifice plate carrier at an upper end thereof and a bent portion bent at one end thereof, And a second jig body connected to one end of the orifice plate during rotation to transmit a pressing force.

Description

[0001] JIG FOR DISASSEMBLING OF ORIFICE PLATE [0002]

The present invention relates to a jig for disassembling an orifice plate, and more particularly to a jig for disassembling an orifice plate, which can easily and easily separate the orifice plate from the orifice plate carrier, And the structure of the orifice plate disassembly jig is improved.

In general, a flow meter is intended to measure the flow rate of liquefied natural gas (LNG) in a pipe and serves as a basis for charge settlement.

Among the types of flowmeters, the orifice flowmeter is a type of differential pressure flowmeter that is commonly used for flow measurement and has been standardized based on collected data and widely used anywhere in the world.

The orifice flowmeter consists of an orifice plate and an orifice plate carrier. The orifice plate is fixed to the center portion of the orifice plate carrier with rubber packing, and is installed inside the tube to tighten the flow, and the flow rate is measured using the pressure difference between before and after.

That is, a conventional orifice is used to perform a flow rate control and a pressure reduction operation on a pipeline by narrowing a passage through which a fluid flows in a hydraulic piping or a pressure-type flow meter or the like, The characteristic is presupposed to maintain the non-viscous, isothermal state without change in density.

A so-called orifice valve for arbitrarily regulating a flow rate and a pressure flowing on a pipe by using the principle of the orifice is proposed.

As an example of prior art related to existing orifices, as disclosed in Korean Patent Laid-Open Publication No. 10-2006-0074032, "Orifice Plate" (published on Jul. 3, 2006), a disk- And a packing groove formed at a predetermined distance from the outer circumference on one side of the body portion.

When the orifice plate is disassembled and maintained, it is necessary to remove the orifice plate carrier from the carrier after removing the orifice plate carrier from the piping. In the past, the orifice plate has been removed by hand or by a batting method using a hand tool such as a rubber hammer.

However, since there is no dedicated tool for disassembling the orifice plate for such a work, when the orifice plate with a heavy load of about 16 inches or more is separated, Damage such as deformation or crack due to excessive release of the plate deteriorates the performance and shortens the service life.

In addition, the disassembling work of the existing orifice plate has a problem in that the danger level of the work activity is increased, for example, the risk of the safety accident of the worker is increased due to the occurrence of the safety hazard factor due to the increase of the work time due to the high process difficulty.

There is a need for a disassembly jig for exclusive use of an orifice plate, which is designed to prevent breakage of the orifice plate in accordance with the design element of the tool and has a clearance range according to the size of the orifice plate.

Korean Patent Laid-Open Publication No. 10-2006-0074032 entitled "Orifice plate" (Published date: July 3, 2006)

The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for separating an orifice plate from an orifice plate carrier in a field in a simple and easy manner, And an object of the present invention is to provide a jig for disassembling an orifice plate in which the structure is improved so that the disassembly operation can be performed quickly by increasing the convenience of operation.

According to an aspect of the present invention, there is provided a jig body comprising: a first jig body having a clamping portion for holding an edge portion of an orifice plate carrier at an upper end thereof;

And a second jig body rotatably connected to a lower side of the clamping unit via a hinge pin and adapted to contact one side of the orifice plate during a rotation operation to transmit a pressing force,
Wherein the clamping portion includes a gripping bracket at one end of the first jig body having a width greater than a thickness of the edge of the orifice plate carrier, a clamping bolt secured to the upper surface of the gripping bracket so as to be movable up and down, And,
The second jig body is formed with a bending part bent at one end thereof and a buffering material for buffering when the bending part is in contact with a side surface of the orifice plate is disposed at an end of the bending part.

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In the present invention, after the orifice plate carrier is fixed to the first jig body using the clamping unit, the second jig body using the principle of the lever is rotated, and the rotational force is transmitted to the orifice plate side by a pressing force, The separator can be easily and quickly separated from the carrier, so that not only the workability is improved, but also the advantageous effect of preventing breakage of the orifice plate in the above-mentioned disassembly process is obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a jig for disassembling an orifice plate according to the present invention; FIG.
2 is an exploded view of Fig.
Figure 3 shows a state in which the jig of the present invention is coupled to the orifice plate carrier for disassembly of the orifice plate.
Figure 4 is a side view of Figure 3;
Fig. 5 is a state of use of the present invention. Fig.

The present design utilizes a dedicated jig for orifice plate disassembly to allow the orifice plate to be quickly removed from the orifice plate carrier in a convenient manner without breakage.

1 to 5, the jig for orifice plate disassembly according to the present invention has a structure in which a clamping portion 110 for gripping a part of the edge of the orifice plate carrier 10 is provided at an upper end, A body 100; A bending part 210 bent at one end is formed and connected to the lower side of the clamping part 110 through a hinge pin 150 so as to be rotatable and is brought into contact with one side of the orifice plate 20 And a second jig body (200) for transmitting a pressing force.

1 and 2, the first jig body 100 has a generally long bar shape having a clamping part 110 at one end and a handle at the other end.

The clamping portion 110 is formed at one end of the first jig body 100 to have a width greater than the edge thickness of the orifice plate carrier 10 and to have a " C "shape such that the edge portion of the orifice plate carrier 10 is received. A clamping bolt 112 fixed to the upper surface of the gripping bracket 111 in such a manner that the clamping bolt 112 can move upward and downward and a clamping bolt 112 provided at an end of the clamping bolt 112, And a cushioning member 115 which is in contact with one side surface of the edge of the orifice plate carrier 10 when it is moved.

The second jig body 200 has a bent portion 210 bent at one end thereof and a handle at the other end thereof and a fixing bracket 220 And a cushioning member 225 is disposed on the fixing bracket 220 via a bolt for buffering when contacting the one side of the orifice plate 20.

The first and second jig bodies 100 and 200 are rotatable about the hinge pin 150 in the form of a scissors and the second jig body 200 is supported by the first jig body 100 ) With a lever mechanism.

The cushioning member 115 and the cushioning member 225 are in contact with one side of the orifice plate carrier 10 and the orifice plate 20 so as to use a urethane material as a shock-absorbing material for preventing damage such as impact or scratching can do.

In addition, the entire material of the first and second jig bodies 100 and 200 is made of stainless steel, which is excellent in corrosion resistance. By laser processing, denaturation by heat can be removed and the surface can be smoothly processed.

Each handle can employ a rubber tube to prevent slipping.

A reference numeral 30 denotes a packing disposed between the orifice plate 20 and the orifice plate carrier 10.

3 and 4, after the edge portion of the orifice plate carrier 10 has entered the inside of the holding bracket 111, the present invention having the above-described structure is configured such that the orifice plate carrier 10 is clamped When the bolt 112 is rotated in one direction (clockwise direction) to move the bolt 112 downward relative to the upper surface of the holding bracket 111 (in the drawing, from the right to the left), the cushioning member 115 is pushed to one side of the orifice plate carrier 10 The clamping portion 110 can securely fix the first jig body 100 to the orifice plate carrier 10. [

When the second jig body 200 is rotated toward the first jig body 100 with respect to the hinge pin 150, the end of the bending portion 210 is rotated toward the orifice plate 20, The pressing force is transmitted to the other side while being in contact with one side surface of the orifice plate 20.

In this case, as described above, the second jig body 200 can transmit a large pressing force to the orifice plate 20 even with a small force on the principle of the lever.

5, since the orifice plate carrier 10 is firmly fixed to the first jig body 100 by the clamping unit 110, the orifice plate carrier 10 is transmitted from one side to the other through the buffer member 225 The orifice plate 20 can be easily separated from the orifice plate carrier 10 by the biasing force of the second jig body 200.

Thereafter, after the separation operation of the orifice plate 20 and the orifice plate carrier 10 is completed, the clamping bolt 112 is rotated in the other direction (counterclockwise direction) so that the cushioning material 115 contacts the orifice plate carrier 10 The orifice plate carrier 10 can be detached from the holding bracket 111 by separating the orifice plate carrier 10 from the one side surface.

Such a jig of the present invention can be applied in the same manner when the orifice plate 20 is to be coupled to the orifice plate carrier 10.

Accordingly, in the present invention, after the orifice plate carrier 10 is fixed to the first jig body 100 by using the clamping unit 110, the second jig body 200 using the principle of the lever is rotated, The orifice plate 20 can be easily and quickly separated from the orifice plate carrier 10 by the pressing force applied to the orifice plate 20 and the orifice plate 20 can be prevented from being damaged Lt; / RTI >

10: Orifice plate carrier 20: Orifice plate
30: packing 100: first jig body
110: clamping part 111: holding bracket
112: Clamping bolt 115: Cushioning material
200: second jig body 210:
220: Fixing bracket 225: Cushioning material

Claims

A first jig body 100 having a clamping portion 110 for holding an edge portion of the orifice plate carrier 10 at an upper end thereof,
And a second jig body 200 rotatably connected to the lower side of the clamping part 110 via a hinge pin 150 and contacting the one side of the orifice plate 20 during rotation to transmit a pressing force thereto ,
The clamping part 110 is provided at one end of the first jig body 100 with a grip bracket 111 having a width larger than the edge thickness of the orifice plate carrier 10, And a clamping bolt (112) fastened movably upward and downward and provided with a cushion material (115) at an end thereof,
The second jig body 200 has a bending part 210 bent at one end thereof and a cushioning material 210 for buffering when contacting the one side of the orifice plate 20 at the end of the bending part 210 225) are disposed on the upper surface of the jig.

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