KR100768320B1 - Absorption oil flow regulating orifice cleaning apparatus - Google Patents

Abstract

The present invention relates to an orifice cleaning apparatus for controlling the flow rate of an absorption oil flow, which prevents an orifice from being clogged by a pitch component of an absorption oil by injecting cleansing oil into the orifice, (40) connected to the suction pump (72) for sucking the fluid from the other side of the orifice, and a fluid inlet pipe (40) connected to the fluid inlet pipe (36) A shape-memory alloy coil spring 60 for moving the tip end of the fluid suction pipe 40 so as to approach the orifice side; And a control unit (80) connected to drive the suction pump (72).

Orifice, cleaning fluid, shape memory alloy, spring, suction

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an orifice cleaning apparatus,

FIG. 1 is a perspective view showing a structure of an orifice cleaning apparatus according to the related art in a partially cutaway state; FIG.

FIG. 2 is a partially cutaway perspective view showing the entire mounting state of the orifice cleaning apparatus according to the present invention; FIG.

3 is a sectional view of the main part of the present invention;

4 is a sectional view of a shape memory alloy coil spring of the present invention.

[Description of Reference Numerals]

10: body 12: supply pipe

14: exhaust pipe 16: support

20: diaphragm 22: orifice

30: Three oil supply pipes 32: Three oil oil supply nozzles

34: opening / closing valve 36: oil supply tank

40: fluid suction pipe 42:

44: stopper 50: bias spring

60: shape memory alloy coil spring 62: coil wire                 

64: Heating wire 70: Elastic pipe

72: Suction pump 80:

90: Level sensor

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an orifice cleaning device for controlling the flow rate of an absorption oil flow, and more particularly, to an orifice cleaning device for controlling the flow rate of an absorption oil flow, which prevents the orifice from being clogged by pitch components of the absorption oil by jetting cleaning oil to the orifice .

In general, the COG generated during the process of producing coke by carburizing coal in the coke making process includes various impurities. Of these impurities, the aromatic hydrocarbons such as benzol, toluene, and xylene are trapped by the tar- do.

The absorption oil containing the hydrocarbon-based impurities is separated from the hydrocarbon-based impurities and the absorption flow path through the distillation process, and the hydrocarbon-based foreign matter is discharged to the product through a purification process. The absorption oil is sludge- After the oil and heavy components are removed, they are heat exchanged with the cooling water through the heat exchange facility and circulated again as absorption oil.

The absorption oil is deteriorated by repeating absorption and distillation processes. The mechanism of such deterioration is known as decomposition of the absorption oil component by heat and polymerization by polycondensation. For this reason, the viscosity of the absorption oil .

In order to solve this problem, a method of removing a distillation component which has not been distilled by distilling a certain amount of turbine oil at a high temperature of 300 ° C. or more by removing a pitch tower is provided for regenerating the absorption oil at the end of the distillation process .

As shown in FIG. 1, the hollow cylindrical body 110 and the body 110 are connected to each other through a pipe connecting the distillation step and the decoupling tower. An absorption oil supply pipe 112 fixed to one end of the body 110 and connected to supply the absorption oil to the body 110 and an absorption oil discharge pipe 112 fixed to the other end of the body 110 and connected to discharge the absorption oil of the body 110. [ And a diaphragm 120 having an orifice 122 formed at the center of the body 110 and fixed to the center of the body 110. Reference numeral 130 denotes a drain line provided at a lower portion of the body 110 to provide a passage for an absorbing oil if necessary, and 132 denotes a valve installed in the drain line 130.

The pitch component is fixed to the orifice 122 so that the inner diameter of the orifice 122 is gradually reduced so that the operation state of the equipment is reduced Very unstable.

A method for actively coping with the change in the inner diameter size of the orifice 122 due to the pitch component of the absorption oil has not been disclosed in the prior art and only the operation of the equipment is interrupted to disassemble the orifice device, ). ≪ / RTI >                         

However, such a conventional method has a problem of productivity deterioration due to stoppage of equipment, and has a problem that labor and time are required for maintenance work.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an orifice for adjusting the flow rate of oil, which can easily remove a pitch component attached to the orifice by spraying cleaning oil when the orifice is clogged by the pitch component of deteriorated absorption oil And to provide a cleaning device.

In order to achieve the above object, the present invention provides a device for cleaning an orifice formed so as to maintain a constant flow rate of oil in an oil reservoir, comprising: a supply tank for supplying cleaning oil to one side of the orifice; A fluid suction pipe connected to the suction pump for sucking the fluid from the other side of the orifice, a biasing spring for moving the tip of the fluid suction pipe to move away from the orifice, A shape memory alloy coil spring for moving the tip of the shape memory alloy coil spring so that the tip of the shape memory alloy coil spring moves toward the orifice side and a control part connected to drive the opening and closing valve and the suction pump.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 2 is a partially cutaway perspective view showing the entire mounting state of the orifice cleaning apparatus according to the present invention, and FIG. 3 is a cross-sectional view of the main part.

The absorbing oil supply pipe 12 and the absorbing oil discharge pipe 14 are connected to one side and the other side of the hollow body 10 and the central portion of the body 10 is divided by the diaphragm 20, An orifice 22 is formed at the center of the orifice.

Inside the body 10, a cleansing oil supply pipe 30 for supplying cleansing oil is disposed at a front side of the partition plate 10 with respect to the cleansing oil flow direction. The cleansing oil supply pipe 30 is disposed on the rear side of the partition plate 10, A fluid suction pipe 40 is provided.

A cleansing oil injection port 32 is formed at an end of the cleansing oil supply pipe 30 so as to spray cleansing oil toward the orifice 22 of the partition plate 20. The cleansing oil injection port 32 is preferably formed in the longitudinal direction of the orifice 22 And the cleansing oil jetting direction of the cleansing oil jetting port 32 are set so as to be in a straight line.

The fluid suction pipe 40 is slidably mounted on a support base 16 fixed to the bottom of the body 10 so as to be longitudinally formed in the same direction as the longitudinal direction of the orifice 22.

A bore 42 is formed at the distal end of the fluid suction pipe 40 to gradually increase the inner diameter toward the distal end. Of course, the inner diameter of the tip of the fluid suction pipe 40 is set to be larger than the diameter of the orifice 22.

The fluid suction pipe 40 is supported by a biasing spring 50 and a shape memory alloy coil spring 60. The biasing spring 50 urges the tip of the fluid suction pipe 40 from the orifice 22 And the shape memory alloy coil spring 60 applies an elastic force such that the tip of the fluid suction tube 40 approaches the orifice 22 at a point of transformation temperature Ms or more. Of course, the shape memory alloy coil spring 60 may be a bipolar shape memory alloy and may simultaneously store the shape at high temperature and at room temperature.

4 is a sectional view of the shape memory alloy coil spring 60. The shape memory alloy coil spring 60 includes a coil wire 62 made of a shape memory alloy, a heating wire 64 provided adjacent to the coil wire 62, And a cover 66 surrounding the heating wire 62 and the heating wire 64.

The fluid suction pipe 40 is connected to a suction pump 72 through a flexible pipe 70 and the cleaning oil supply pipe 30 is provided with an on-off valve 34 to be connected to a cleaning oil supply tank 36 And the heating wire 64 and the suction pump 72 of the shape memory alloy coil spring 60 are connected to the control unit 80 and are controlled to receive power, (Not shown) in which absorption oil discharged from the body 10 is supplied, and is provided with level information of the absorption oil level from a level detection sensor 90 adapted to sense the level of the absorption oil.

Of course, the control unit 80 is pre-programmed with a program for opening / closing the on / off valve 34 and supplying power to the heating line 64 according to the level information of the absorption oil provided by the level detection sensor 90.

Reference numeral 44 denotes a stopper 44 fixed to the fluid suction pipe 40 so as to support one end of the biasing spring 50.

The operation of the present invention constituted as described above will be described.                     

When the level of the absorption oil sensed by the level sensor 90 is in a steady state, the tip of the fluid suction pipe 40 is maintained at a predetermined distance from the diaphragm 20 by the biasing spring 50, Flows through the orifice (22) of the flow path (20).

When the level of the absorption oil detected by the level sensor 90 is lower than the steady state, it means that the diameter of the orifice 22 is reduced by the pitch component of the absorption oil. The controller 80, Power is supplied to the heating line 64 to raise the coil line 62 to the transformation temperature point Ms or more.

Accordingly, the coil line 62 is restored to the shape memory state, whereby a force larger than the resilient repulsive force of the biasing spring 50 is applied to the fluid suction pipe 40 so that the fluid suction pipe 40 is separated from the diaphragm 20, So that the front end bulging hole 42 of the fluid suction pipe 40 is brought into close contact with the diaphragm 20.

Subsequently, the control unit 80 opens the open / close valve 34, which is closed, and activates the suction pump 72 at the same time.

When the open / close valve 34 is opened, the cleaning oil is supplied to the cleaning oil supply pipe 30, whereby the cleaning oil is sprayed through the cleaning oil jet opening 32 to clean the orifice 22.

When the suction pump 72 is operated, a predetermined vacuum pressure is formed in the flexible pipe 70 and the fluid suction pipe 40 so that the cleansing oil and the body sprayed from the cleansing oil jetting port 32 through the orifice 22 Absorbing oil that has been filled in the inside of the tank 10 is sucked.

That is, the cleaning fluid injected through the cleaning fluid jetting port 32 removes the tar components attached to the orifice 22 and discharges the fluid to the fluid suction pipe 40, thereby cleaning the orifice 22.

Of course, when the cleaning operation of the orifice 22 is finished, the operation of the suction pump 72 is stopped, the opening / closing valve 34 is closed, and the power supplied to the heating line 64 is shut off.

As a result, the shape memory alloy coil spring 60 is cooled and deviates from the shape memory state, so that the fluid suction tube 40 is returned to the initial state by the bias spring 50.

As described above, according to the present invention, when the diameter of the orifice is reduced by the pitch component of the absorption oil, the cleaning of the orifice is very simple by removing the pitch component by injecting cleaning oil into the orifice .

Claims (3)

An apparatus for cleaning an orifice formed to maintain a constant flow rate of absorbing oil, A cleaning fluid supply pipe 30 connected to the cleaning fluid supply tank 36 to supply cleaning fluid from one side of the orifice and having an on-off valve 34, and a suction pump 30 for sucking fluid from the other side of the orifice A biasing spring 50 for moving the tip of the fluid suction pipe 40 away from the orifice and a shape for moving the tip of the fluid suction pipe 40 to approach the orifice side A memory alloy coil spring and a control unit connected to drive the on-off valve and the suction pump. The shape memory device according to claim 1, wherein the shape memory coil spring (60) is shaped and stored so that the front end of the fluid suction tube (40) moves close to the orifice when the controller (80) Orifice cleaning device for flow rate control. The apparatus of claim 1, further comprising a level sensing sensor (90) for measuring the level of fluid discharged through the orifice (22) and providing the measured level to the controller (80) .

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