KR101646240B1 - Apparatus for diagnosing efficiency of manifold block - Google Patents

Abstract

A manifold block performance diagnostic apparatus is disclosed. The manifold block performance diagnosing apparatus includes: a pump unit connected to a port of a manifold block to supply fluid; A detector connected to a flow path of the manifold block and detecting a pressure and a flow rate of the fluid flowing through the flow path; A data processing unit for converting the detected pressure and flow rate into cylinder speed data, and a control unit for diagnosing the manifold block using the speed data.

Description

[0001] APPARATUS FOR DIAGNOSING EFFICIENCY OF MANIFOLD BLOCK [0002]

The present invention relates to a manifold block performance diagnostic apparatus, and more particularly, to an apparatus for diagnosing performance of a manifold block that controls a fluid supplied to a cylinder for roll gap control of a performance segment.

The continuous casting method of a steel mill is a method in which a molten steel is injected into a water-cooled mold and continuously drawn out from below, while forced cooling and solidification are carried out in a secondary cooling stand, thereby producing a predetermined cast slab (slab, bloom or billet) directly in molten steel.

Recently, in the continuous casting equipment, there are many segments of the structure capable of adjusting the roll gap by operating the upper frame of the segment with an actuator such as a hydraulic cylinder during casting for soft reduction (center segregation reduction technology) and liquid core reduction Is being installed.

The control of the segment roll gap in the continuous casting plant not only affects the quality of the cast steel but also has a significant influence on the life of the segment rolls. The segment roll gap is greatly influenced by the state of the manifold block supplying the fluid to the hydraulic cylinder. Therefore, management of the manifold block for controlling the flow rate and pressure of the fluid supplied to the hydraulic cylinder is important for the adjustment of the segment roll gap. However, due to a defect in the manifold block, intermittent operation of the hydraulic cylinder occurs during the withdrawal of the cast steel, causing the exchange of the equipment or the presence of equipment capable of diagnosing the defect of the manifold block, leaving the expensive manifold block There is a problem.

SUMMARY OF THE INVENTION The present invention provides a manifold block performance diagnostic apparatus that controls a fluid supplied to a cylinder for adjusting a roll gap of a performance segment.

According to an aspect of the present invention, there is provided a pump comprising: a pump unit connected to a port of a manifold block to supply a fluid; A detector connected to a flow path of the manifold block and detecting a pressure and a flow rate of the fluid flowing through the flow path; A data processing unit for converting the detected pressure and flow rate into cylinder speed data, and a control unit for diagnosing the manifold block using the speed data.

The manifold block may communicate with the flow path through an orifice.

The data processor may convert the detected pressure and flow rate into the cylinder speed data using a conversion table according to the type of the cylinder.

The control unit may diagnose the manifold block by comparing the velocity data with the reference velocity data according to a spec of the orifice.

And a valve unit installed in the flow path of the manifold block to control opening and closing of the flow path.

And a display unit for displaying a diagnosis result of the control unit as an external unit.

And a UI unit for providing a user interface through the display unit.

And a log unit for recording the conversion result of the data processing unit and the diagnosis result of the control unit and arranging them according to measurement objects.

The manifold block performance diagnosing apparatus according to the present invention can detect the performance of the manifold block by detecting the flow rate and pressure of the fluid flowing through the flow path connecting the manifold block and the cylinder.

Further, the performance of the manifold block can be accurately detected according to the type of the cylinder and the specification of the orifice.

Also, the performance detection record of the manifold block can be collectively recorded, and trend management can be performed for each manifold block.

1 is a schematic perspective view of a conventional player segment,
2 is a cross-sectional view of a conventional player segment,
3 is a block diagram of a manifold block performance diagnosing apparatus according to an embodiment of the present invention.
FIG. 4 is a conceptual diagram of a manifold block performance diagnosis apparatus according to an embodiment of the present invention. FIG.
FIG. 5 is a front view of a manifold block performance diagnosis apparatus according to an embodiment of the present invention. FIG.
6 is a side view of a manifold block performance diagnosing apparatus according to an embodiment of the present invention;
7 is a structural cross-sectional view of a manifold block performance diagnosis apparatus according to an embodiment of the present invention;
8 is a structural cross-sectional view of a pump unit according to an embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

Fig. 1 is a schematic perspective view of a conventional player segment, and Fig. 2 is a sectional view of a conventional player segment.

Referring to FIGS. 1 and 2, a player for producing slabs is composed of a plurality of player segments 1 which continuously move while supporting a slab produced through a mold. The player segments 1 are provided with a plurality of rolls 30 on the upper and lower sides, respectively, so that the slabs pass between the upper and lower rolls 30.

In order to adjust the gap between the rollers of the player segment 1, the upper frame 40 is moved up and down by connecting a cylindrical guide unit of the upper and lower frames 40 and 50. The guiding unit is provided with a slidable guiding part and the screw jack and the hydraulic cylinder 10 are fixed to the upper and lower frames 40 and 50 and operated simultaneously to move the upper frame 40 up and down. . At this time, the manifold block 20 functions to control the roll gap by controlling the pressure and the flow rate of the fluid supplied to the hydraulic cylinder 10.

FIG. 3 is a block diagram of a manifold block performance diagnosing apparatus according to an embodiment of the present invention. FIG. 4 is a conceptual diagram of a manifold block performance diagnosing apparatus according to an embodiment of the present invention. 6 is a side view of a manifold block performance diagnosing apparatus according to an embodiment of the present invention. FIG. 7 is a block diagram of a manifold block performance diagnosing apparatus according to an embodiment of the present invention. FIG. 8 is a structural cross-sectional view of a pump unit according to an embodiment of the present invention. FIG.

3 to 7, a manifold block performance diagnosis apparatus 100 according to an embodiment of the present invention includes a pump unit 110, a detection unit 120, a data processing unit 130, a control unit 140, A UI unit 160, and a log unit 170. [0033]

First, the pump unit 110 is connected to the port of the manifold block 20 to supply the fluid. The pump unit 110 may include a main pump 111, an oil tank 112, and a circulation pump 113, for example, as shown in FIG. The pump unit 110 may be connected to the manifold block 20 through the P-line and T-line. The main pump 111 of the pump unit 110 is connected to the port of the manifold block 20 through the P line to supply the fluid and the oil tank 112 is connected to the manifold block 20 through the T line. It can be connected to the port to recover the fluid. The circulation pump 113 is capable of cooling through the cooler when the temperature of the oil in the tank rises, and is capable of filtering the foreign substances introduced into the oil of the tank.

The detection unit 120 is connected to the flow path of the manifold block 20 and can detect the pressure and the flow rate of the fluid flowing in the flow path. The manifold block 20 is connected to the flow line A and the line B through an orifice 21. The detection portion 120 detects the pressure of the fluid input portion and the output portion of the orifice 21, Can be detected. The manifold block performance diagnosing apparatus according to an embodiment of the present invention can indirectly calculate the pressure and the flow rate of the fluid supplied to the cylinder through the flow path by detecting the pressure and the flow rate of the fluid passing through the orifice of the manifold block . However, unlike the embodiment of the present invention, a separate pressure sensor (not shown) and a flow sensor (not shown) may be mounted to directly detect the pressure and flow rate of the fluid flowing in the flow path.

The data processing unit 130 can convert the pressure and flow rate detected by the detecting unit 120 into cylinder speed data. The data processing unit 130 may convert the detected pressure and flow rate into the cylinder speed data using a conversion table according to the type of the cylinder. The fluid flowing in the passage from the plunger segment is supplied to the cylinder to control the movement of the cylinder. The speed of movement of the cylinder changes according to the pressure and the flow rate of the fluid supplied to the cylinder.

The data processing unit 130 refers to the conversion table stored in the database 180 and stores the correspondence relationship between the speed of the cylinder and the pressure and the flow rate of the fluid flowing through the flow path in the database 180, The detected pressure and flow rate can be converted into cylinder speed data. At this time, the data processing unit 130 can refer to the conversion table corresponding to the type of the cylinder input according to the UI unit 160. [ The conversion table may include data calculated by experiment, for example, depending on the type of the cylinder.

The control unit 140 can diagnose the manifold block 20 using the velocity data. The controller 140 compares the velocity data with the reference velocity data and determines that the state of the manifold block 20 is not good when the velocity data deviates from the set error range. If the state of the manifold block 20 is determined to be not good, the control unit 140 may display a notification or a warning through the display unit 150.

 The control unit 140 can diagnose the manifold block 20 by comparing the speed data with the reference speed data according to the specification spec of the orifice 21. [ The orifice 21 may be mounted in a portion communicating with the manifold block 20 to regulate the flow rate of the fluid to be supplied to the cylinder. In the case where the orifice 21 is worn or foreign matter is generated and is not removed The cylinder can be operated at a speed different from the specification of the mounted orifice 21. Therefore, in the database 180, the velocity data of the cylinder required according to the specification of the orifice 21 is stored as the reference speed data, and the controller 140 diagnoses the manifold block 20 with reference to the reference speed data. The specification of the orifice 21 may mean, for example, the diameter of the input side and output side of the orifice 21.

The valve unit 190 is installed in the flow path of the manifold block to control opening and closing of the flow path. The valve unit 190 may be installed on the A line and the B line, and may be constituted by, for example, a solenoid valve. The valve unit 190 regulates opening and closing of the flow path according to a control command of the control unit 140.

The display unit 150 can display the diagnosis result of the control unit 140 on the outside and can display various interface screens provided by the UI unit 160 and various conversion results and diagnosis results provided by the log unit 170 to the outside Can be displayed.

The UI unit 160 may provide a user interface through the display unit 150. [ The UI unit 160 may provide an input key through a separate panel or may provide an input key to the display unit 150 in a touch panel manner. The UI unit 160 can provide a user interface through the display unit 150 to control various operations of the pump unit 110, the detection unit 120, the data processing unit 130, and the valve unit 190 .

The log unit 170 may record the conversion result of the data processing unit 130 and the diagnosis result of the control unit 140 and organize them according to measurement objects. The log unit 170 stores the conversion result and the diagnosis result for each measured manifold block and classifies and stores the conversion result and the diagnosis result according to the date, time, measurement environment, and the like. The control unit 140 It is possible to provide the stored data.

As used in this embodiment, the term " portion " refers to a hardware component such as software or an FPGA (field-programmable gate array) or ASIC, and 'part' performs certain roles. However, 'part' is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors. Thus, by way of example, 'parts' may refer to components such as software components, object-oriented software components, class components and task components, and processes, functions, , Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and components may be further combined with a smaller number of components and components or further components and components. In addition, the components and components may be implemented to play back one or more CPUs in a device or a secure multimedia card.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

1: Player Segment
10: Cylinder
20: Manifold block
30: roll
40: upper frame
50: Lower frame
100: Manifold block performance diagnostic device
110: pump section
120:
130:
140:
150:
160: UI section
170: Log section
180: Database
190:

Claims (8)

A pump unit connected to a port of the manifold block to supply fluid;
A detector connected to a flow path of the manifold block and detecting a pressure and a flow rate of the fluid flowing through the flow path;
A data processor for converting the detected pressure and flow rate into cylinder speed data, and
And a controller for diagnosing the manifold block using the velocity data,
The manifold block communicates with the flow path through an orifice,
Wherein the data processing unit converts the detected pressure and flow rate into the cylinder speed data using a conversion table according to the type of the cylinder.
delete delete The method according to claim 1,
Wherein the control unit diagnoses the manifold block by comparing the speed data with reference speed data according to a spec of the orifice.
The method according to claim 1,
And a valve unit installed in the flow path of the manifold block to control opening and closing of the flow path.
The method according to claim 1,
And a display unit for displaying a diagnosis result of the control unit as an external unit.
The method according to claim 6,
And a UI unit for providing a user interface through the display unit.
The method according to claim 1,
And a log unit for recording the conversion result of the data processing unit and the diagnosis result of the control unit, and organizing the conversion results by the measurement objects.

Images