KR20180057055A - The evaluation system and method for flowmeter - Google Patents

Abstract

The present invention relates to an evaluation system and a method for a flowmeter, which can evaluate flow rate measurement accuracy and dynamic behavior of an oil flowmeter for measuring a fuel flow rate of a ship. The evaluation system comprises: a fluid supply device supplying a fluid to a target flowmeter; and a simulation device capable of applying movement to the target flowmeter to provide an environment maximally similar to another environment of an actual ship to the target flowmeter while the fluid is supplied.

Description

[0001] The present invention relates to a flow meter,

The present invention relates to a flow meter evaluation system and method, and more particularly, to a flow meter evaluation system and evaluation method capable of evaluating flow measurement accuracy and dynamic characteristics of an oil flow meter for fuel flow measurement of a ship.

Accurate measurement of the amount of fuel consumed in the operation of the ship is important for the economic operation of the ship. Also, in order to increase the fuel efficiency of the engine, it is necessary to measure and monitor the flow rate used in the actual engine.

For this purpose, generally, a method of measuring the flow rate supplied from the fuel supply line at the time of lubrication before the ship operation or measuring the flow rate with the level meter of the fuel storage tank in the ship is mainly used. In the case of large vessels, an oil flow meter is installed in the piping connecting the engine and the main engine to monitor fuel consumption on its own. In order to ensure the transparency of the duty-free oil supply and demand for fishing vessels, which is provided for the reduction of fishery expenses of the fishermen in the nation, a policy is being prepared to install the oil flow meter which directly measures the actual capacity of the fuel used in the engine of the fishing boat.

In order to measure the actual fuel flow rate used in a ship, an oil flow meter should be installed in the piping supplied to the engine to measure the flow rate. There is a difference in the type of internal combustion engine (gasoline, light oil, heavy oil, etc.) and the fuel consumption rate of the engine (outboard vessel 1L / min, 2L / min , 5L / min for ships of 10 tons or more), it is important to ensure the reliability of the oil flow meter, since the flow range to be measured by the flow meter varies. Therefore, the flow meter evaluation system was used to verify the performance of the oil flow meter to measure the actual fuel flow rate under various conditions.

Unlike conventional flowmeters installed at fixed locations on the ground, marine flowmeters are continuously subjected to vibration and tilt conditions due to waves as the vessel is operating on the sea level. Particularly, in order to measure the actual fuel flow rate used in the engine, it is installed in the piping supplied to the engine, so that vibration due to the engine is also given. However, such a conventional flowmeter evaluation system can only measure the flow measurement accuracy, so that there is a problem that the characteristics of the impact due to the vibration of the marine engine can not be evaluated.

The present invention is to solve various problems including the above-mentioned problems, and it is an object of the present invention to provide a flow meter evaluation method capable of evaluating the characteristics of the impact due to the vibration of the marine vessel engine as well as the flow measurement accuracy test, System and an evaluation method. However, these problems are illustrative, and thus the scope of the present invention is not limited thereto.

In accordance with one aspect of the present invention, a flow meter evaluation system is provided. The flowmeter evaluation system includes: a fluid supply device that supplies fluid to a target flowmeter; And a simulator capable of applying a motion to the target flowmeter so as to provide the target flowmeter with an environment that is as close as possible to the environment of the actual vessel while the fluid is being supplied.

And a fluid metering device in the flow meter evaluation system for collecting the fluid that has passed through the subject flow meter and measuring the mass of the fluid collected so that the flow rate of the fluid measured by the subject flow meter can be verified can do.

In the flowmeter evaluation system, the simulation apparatus may include a wave implementer capable of applying various angles and orientations of inclination to the target flow meter so that the vessel can implement what is tilted by the wave.

In the flowmeter evaluation system, the wave implementer comprises: a test bench supporting the target flow meter; And a driving device for driving the at least one of the first supporting part, the second supporting part, the third supporting part, and the fourth supporting part for vertically moving the test bench up and down to adjust the inclination of the test bench have.

In the flowmeter evaluation system, the wave support implement may include at least one of the first support, the second support, the third support, and the fourth support so that the test stand can be inclined at various angles and directions, And can be connected to a hinge portion capable of rotating more than the axis.

In the flowmeter evaluation system, the simulation apparatus may further include a vibrating device capable of applying vibrations to the target flowmeter so as to implement vibrations occurring in the marine engine.

In the flow meter evaluation system, the fluid supply device includes: a fluid storage tank for storing fluid; A pump installed at one side of the fluid storage tank to draw the fluid stored in the fluid storage tank to the target flow meter; A header device connected to the pump to damp pulsation generated by the pump; A reference flow meter for monitoring a flow rate of the fluid supplied through the header device to the target flowmeter; And a control valve installed in a pipe connected to the pump to adjust the flow rate of the fluid supplied to the target flowmeter.

A diverter unit connected to the target flowmeter and controlling a flow direction of the fluid passing through the target flowmeter in the flowmeter evaluation system; And a scale unit for collecting the fluid passing through the target flowmeter through the diverter unit and measuring the mass of the fluid.

In the flowmeter evaluation system, the balance unit may calculate the flow rate of the fluid by measuring the mass of the fluid so as to be compared with the flow rate of the fluid measured by the object flowmeter.

According to one aspect of the present invention, a flow meter evaluation method is provided. The flow meter evaluation method includes: a fluid supply step of supplying fluid to a target flow meter; And a simulation step of applying a motion to the target flowmeter so as to provide the target flowmeter with an environment as close as possible to the environment of the actual vessel while the fluid is being supplied.

In the flowmeter evaluation method, the fluid passing through the object flowmeter is collected so that the flow rate of the fluid measured by the object flowmeter can be verified, the mass of the collected fluid is measured to calculate the flow rate of the fluid And comparing the calculated value with a flow rate value measured by the object flowmeter.

In the flowmeter evaluation method, the simulation step realizes vibration by generating vibrations in the ship engine by applying vibration to the target flowmeter, and tilting the target flowmeter in various angles and directions.

According to the embodiment of the present invention as described above, it is possible to apply the inclined condition due to the vibration and the wave by the marine engine to the target flowmeter in the same manner as the measurement of the flowmeter, In addition to the accuracy test, the characteristics of the impact due to the vibration of the crane and the engine of the ship can also be evaluated.

Accordingly, it is possible to provide a flowmeter evaluation system that can measure a flow rate of a fuel consumed in a ship engine installed on a ship, a flowmeter evaluation system capable of evaluating flow measurement performance under dynamic environmental conditions caused by digging in an actual ship, An evaluation method can be implemented. Of course, the scope of the present invention is not limited by these effects.

1 is a perspective view illustrating a flow meter evaluation system according to an embodiment of the present invention.
Figs. 2 and 3 are cross-sectional views showing a simulation apparatus of the flow rate evaluation system of Fig.
4 is a flowchart illustrating a flow meter evaluation method according to an embodiment of the present invention.

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

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, It is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thickness and size of each layer are exaggerated for convenience and clarity of explanation.

It is to be understood that throughout the specification, when an element such as a film, region or substrate is referred to as being "on", "connected to", "laminated" or "coupled to" another element, It will be appreciated that elements may be directly "on", "connected", "laminated" or "coupled" to another element, or there may be other elements intervening therebetween. On the other hand, when one element is referred to as being "directly on", "directly connected", or "directly coupled" to another element, it is interpreted that there are no other components intervening therebetween do. Like numbers refer to like elements. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.

Also, relative terms such as "top" or "above" and "under" or "below" can be used herein to describe the relationship of certain elements to other elements as illustrated in the Figures. Relative terms are intended to include different orientations of the device in addition to those depicted in the Figures. For example, in the figures, when the element is turned over, the elements depicted as being on the upper surface of the other elements are oriented on the lower surface of the other elements. Thus, the example "top" may include both "under" and "top" directions depending on the particular orientation of the figure. If the elements are oriented in different directions (rotated 90 degrees with respect to the other direction), the relative descriptions used herein can be interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention should not be construed as limited to the particular shapes of the regions shown herein, but should include, for example, changes in shape resulting from manufacturing.

1 is a perspective view illustrating a flow meter evaluation system 1000 according to an embodiment of the present invention.

1, a flow meter evaluation system 1000 according to an embodiment of the present invention mainly includes a fluid supply apparatus 100, a simulation apparatus 200, and a fluid measurement apparatus 300 .

As shown in FIG. 1, the fluid supply device 100 can supply fluid to the object flowmeter F. More specifically, the fluid supply apparatus 100 includes a fluid storage tank 110 for storing a fluid, a fluid storage tank 110 installed at one side of the fluid storage tank 110 for storing the fluid stored in the fluid storage tank 110, The fluid delivered through the header device 130 and the header device 130 which is connected to the pump 120 and attenuates the pulsation generated by the pump 120 passes through the header device 130 And a reference flow meter 140 for monitoring the flow rate of the fluid supplied to the object flow meter F. [

For example, the fluid storage tank 110 receives the fluid to be supplied to the object flowmeter F, passes through the object flowmeter F and the fluid measurement device 300, Can be recovered and reused.

In addition, the fluid storage tank 110 may be a structure having adequate strength and durability to accommodate the fluid. For example, the fluid storage tank 110 may be a structure selected from a material selected from the group consisting of steel, stainless steel, aluminum, magnesium, and zinc. However, the fluid storage tank 110 is not necessarily limited to Fig. 1, and a wide variety of members capable of accommodating fluid can be applied.

In addition, the pump 120 may be a circulation pump for circulating the fluid, which draws the fluid stored in the fluid storage tank 110 to the object flow meter F. [

In addition, pulsation may occur while the fluid is drawn out to the object flowmeter F by the pump 120. Pulsation is a phenomenon that occurs periodically between the discharge flow rate and the delivery pressure. Generally, when the pulsation occurs, the discharge rate may be smaller than the regular flow rate. The pump 120 may not be operated smoothly due to the pulsation and may be dangerous to the extent that the pump 120 can not be operated. In this case, the pulsation generated by the pump 120 using the header device 130 Can be attenuated.

Also, the reference flow meter 140 can monitor the flow rate of the fluid supplied to the object flow meter F in real time. More specifically, the reference flow meter 140 may be any one of a wing flow meter, a differential pressure meter, and an area type flow meter. The reference flow meter 140 may be used to measure the flow rate of the fluid supplied to the object flow meter F It is possible to accurately control the evaluation conditions (supply flow range) at the time of evaluation of the object flowmeter F. [

In addition, the flow measurement value of the object flow meter F can be evaluated by directly comparing the flow measurement value measured by the reference flow meter 140 with the flow measurement value measured by the object flow meter F. [

The fluid supply device 100 may include a control valve unit (not shown) installed in a pipe connected to the pump 120 to adjust the flow rate of the fluid supplied to the object flowmeter F. [ More specifically, the control valve unit is adjusted so that the fuel consumption rate of the engine (1 L / min outboard vessel, 2 L / min of less than 10 t / min, more than 10 t / 5 L / min) can be implemented as desired. At this time, the flow rate can be more precisely controlled by checking the flow rate of the fluid supplied to the object flow meter F through the reference flow meter 140 in real time.

Therefore, the fluid supply device 100 according to the embodiment of the present invention can stably supply the fluid to be evaluated to the object flowmeter F at a correct flow rate by a desired amount at the time of evaluation of the object flowmeter F. [ Therefore, since the flow rate of the fluid can be precisely adjusted as required, various evaluation conditions can be set by implementing the fuel consumption rate of the engine which varies according to the size (tonnage) of the vessel.

1, the simulator 200 is provided with a target flowmeter F so that the target flowmeter F can provide an environment as close as possible to the actual vessel environment while the fluid is supplied to the target flowmeter F. [ (F).

For example, the simulation apparatus 200 includes an oscillator 210 capable of applying vibration to the object flow meter F so as to implement vibrations generated in the ship engine, And a wave implementer 220 that is capable of applying various angles and orientations of inclination to the target flow meter F. [

More specifically, the vibrating device 210 is a vibration shaker. In order to grasp a change in the characteristic of the flow measurement accuracy when the vibration of the marine engine affects the target flow meter F, To the target flow meter F through the device 210 having the flow meter < RTI ID = 0.0 > 210. < / RTI >

In addition, the vibration data generated by the ship engine can be obtained through experiments at the speed of the ship (for example, 6 knots, etc.) which is mainly operated by installing an accelerometer at the position where the actual ship engine and the flow meter can be installed. In addition, vibration data (frequency and size), which are generally generated in a ship engine, can be utilized in existing documents and specifications.

The vibration data thus obtained is transmitted to the vibrating device 210 through a signal generator (not shown) and the vibration of the marine engine implemented in the vibrating device 210 can be given to the target flow meter F. [ At this time, the vibrating device 210 may be installed on the wave forming device 220, and may be applied to the target flow meter F to be tested by combining the inclination by the wave height and the vibration by the ship engine.

More specifically, the wave breaking implementer 220 includes a Heave, which is the downward / upward direction of the sea surface with the greatest displacement during a dynamic reaction in which the ship moves by waves when traveling on the sea, It is possible to implement a pitch that is a right / left tilting direction. The physical implementation of the heave and pitch can be accomplished using a mechanical structure and a controller including an air cylinder and motor.

The time series data of the heave and pitch given in the actual test is the JONSWAP spectrum that best simulates the domestic wave at the significant wave height (less than 1m on the domestic fishing line and below the sea level 2) And wave heights. In addition, time series data can be constructed using dynamic signal data (displacement) measured by a ship.

The time series data of the heave and the pitch thus obtained can be implemented through a controller (not shown) of the wave implementer 220. Therefore, the peak condition (the hives and the pitch) configured according to the type and the sea condition of the ship on which the target flow meter F is installed can be implemented in the target flow meter F to be evaluated.

1, the fluid measuring apparatus 300 collects the fluid passing through the object flow meter F so that the flow rate of the fluid measured by the object flow meter F can be verified more accurately, The mass of the collected fluid can be measured.

More specifically, the fluid measurement apparatus 300 includes a diverter 310 connected to the object flowmeter F and controlling the flow direction of the fluid passing through the object flowmeter F, And a scale unit 320 for collecting the fluid passing through the fluid F and measuring the mass of the fluid.

For example, the diverter unit 310 is a type of valve that can control the flow direction of the fluid according to the standard time. In the normal state, the fluid that has passed through the object flow meter F flows into the fluid storage tank 110, During the evaluation of the flow meter F, the flow direction of the fluid can be controlled so that the fluid passing through the object flow meter F can be collected by the balance portion 320.

The balance unit 320 is a standard precision balance capable of measuring the mass of the fluid. The balance unit 320 collects the fluid passing through the subject flow meter F at the evaluation of the object flow meter F through the diverter unit 310, Can be measured and compared with the flow value measured by the object flow meter F to evaluate the flow measurement accuracy of the object flow meter F. [ At this time, the scale unit 320 may calculate the flow rate of the fluid by measuring the mass of the fluid so that the flow rate value of the fluid measured by the object flow meter F can be compared.

Therefore, the flow meter evaluation system 1000 according to an embodiment of the present invention can implement the inclination condition due to the vibration and the wave by the ship engine at the evaluation of the object flow meter F to the object flow meter F as much as possible Therefore, it is possible to evaluate not only the flow measurement accuracy test, which is a method of calibrating an existing flow meter, but also the characteristics of the impact due to the vibration of the marine engine.

Accordingly, a flowmeter F, which is installed on the ship and is intended to accurately measure the flow rate of the fuel consumed in the ship engine, is installed in the flowmeter evaluation system 1000, The flow measurement accuracy of the object flow meter (F) under environmental conditions can be evaluated.

Figs. 2 and 3 are cross-sectional views showing a simulation apparatus 200 of the flow rate evaluation system 1000. Fig.

2 and 3, the wave device 220 in the simulator 200 includes a test bench 221 for supporting the object flow meter F and the vibrating device 210, A second support portion 223 for supporting the other side edge of the test bench 221 so as to be movable up and down and a second support portion 223 for supporting the other side edge of the test bench 221, A fourth support part 225 and a first support part 222 for supporting the other edge of the test bench 221 so as to be movable up and down and a third support part 224 for supporting the second support part 224 to move up and down, And a driving device M for adjusting at least one of the first support part 223, the third support part 224 and the fourth support part 225 up and down to adjust the inclination of the test bench 221.

The test strip 221 and each of the supports 222, 223, 224, and 225 are connected to the hinge unit 220 which can be rotated by at least one axis so that the test strip 221 can be inclined at various angles and directions. (H). In addition, a ball plunger may be applied instead of the hinge portion (H).

Further, the drive system M can drive any one of an AC motor, a DC motor, a stepping motor, a servo motor, and a hydraulic motor. However, the driving device M is not necessarily limited to those shown in Figs. 2 and 3, and a very wide variety of motors capable of moving the support portions 222, 223, 224, and 225 up and down can be applied. The drive system M may also be configured to support each support 222, 223, 224, 225 using any one of gear combination, belt and pulley combination, chain and sprocket wheel combination, wire and pulley combination, cam combination, Can be increased or decreased.

That is, the driving device M is installed to be connected to the first supporting part 222 and the fourth supporting part 225 so as to raise and lower the first supporting part 222 and the fourth supporting part 225, . In addition, the driving device M can be installed in each of the supporting portions 222, 223, 224, and 225 to further precisely adjust the test bench 221.

Accordingly, when the driving device M is driven to move the support parts 222, 223, 224, and 225 up and down at the same displacement and speed, the hybrid motion can be realized. In addition, when the support portions 222, 223, 224, and 225 are driven up and down in different displacements and directions, pitch motion can be realized. At this time, the vibrating device 210 may be installed on the wave forming device 220, and may be applied to the target flow meter F to be tested by combining the inclination by the wave height and the vibration by the ship engine.

Therefore, in accordance with one embodiment of the present invention, the simulator 200 of the flow meter evaluation system 1000 generates simulated slope conditions due to vibrations and waves by the marine engine as closely as possible to the evaluation of the target flow meter F It is possible to apply the environment similar to the environment of the actual ship to the target flow meter F.

4 is a flowchart illustrating a flow meter evaluation method according to an embodiment of the present invention.

4, a flow meter evaluation method according to an embodiment of the present invention includes a fluid supply step S10 for supplying fluid to a target flow meter F, a fluid supply step S10 for supplying a fluid to the target flow meter F A simulation step S20 for applying a motion to the target flow meter F and a target flow meter F are provided so that the flow rate of the fluid measured by the target flow meter F can be verified so as to provide an environment as close as possible to the environment of the actual ship, (F) for collecting the fluid that has passed through the flowmeter (F), measuring the mass of the collected fluid to calculate the flow rate of the fluid, and comparing the calculated value with a flow rate value measured by the object flowmeter (S30).

More specifically, in the simulation step S20, vibration is applied to the object flow meter F by the vibrating device 210 to implement the vibration generated in the ship engine, It is possible to realize that the ship is tilted by the digging by applying the inclination of various angles and directions.

Therefore, the flow meter evaluation method according to the embodiment of the present invention can implement the inclination condition due to the vibration and the wave by the ship engine at the evaluation of the object flow meter F to the object flow meter F as much as possible, As well as the flow measurement accuracy test, which is a method of calibrating the flow meter of a ship engine.

Accordingly, a flowmeter F, which is installed on the ship and is intended to accurately measure the flow rate of the fuel consumed in the ship engine, is installed in the flowmeter evaluation system 1000, The flow measurement accuracy of the object flow meter (F) under environmental conditions can be evaluated.

While the present invention has been described with reference to exemplary embodiments, 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 invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: fluid supply device
110: fluid storage tank
120: pump
130: Header device
140: Reference flow meter
200:
210:
220: Digging implementation device
300: Fluid measuring device
310: Diverter unit
320: Balance part
F: Target flow meter
M: Driving device
1000: Flow Meter Evaluation System

Claims (12)

A fluid supply device for supplying fluid to the target flowmeter; And
A simulator capable of applying a motion to the target flow meter during the supply of the fluid so as to provide the target flow meter with an environment that is as close as possible to the environment of the actual vessel;
And a flow meter. The method according to claim 1,
A fluid measuring device for collecting the fluid passing through the object flowmeter and for measuring the mass of the fluid collected so that the flow rate of the fluid measured by the object flowmeter can be verified;
Further comprising: a flow meter evaluation system. The method according to claim 1,
The above-
A tilting implement capable of applying tilting of various angles and directions to the target flow meter so that the vessel can be tilted by the tilting;
And a flow meter. The method of claim 3,
The apparatus of claim 1,
A laboratory supporting the object flowmeter; And
A drive unit for driving at least one of the first support unit, the second support unit, the third support unit, and the fourth support unit to vertically move the test bench so as to move the test bench up and down to adjust the inclination of the test bench;
And a flow meter. 5. The method of claim 4,
The apparatus of claim 1,
Wherein the test bench and the first support portion, the second support portion, the third support portion, and the fourth support portion are connected to a hinge portion that is rotatable by at least one axis so that the test stand can be inclined at various angles and directions, system. The method of claim 3,
The above-
A vibrating device capable of applying vibrations to the target flowmeter so as to realize vibrations occurring in a ship engine;
Further comprising: a flow meter evaluation system. The method according to claim 1,
The fluid supply device includes:
A fluid storage tank for storing fluid;
A pump installed at one side of the fluid storage tank to draw the fluid stored in the fluid storage tank to the target flow meter;
A header device connected to the pump to damp pulsation generated by the pump;
A reference flow meter for monitoring a flow rate of the fluid supplied through the header device to the target flowmeter; And
A control valve installed in a pipe connected to the pump so as to adjust a flow rate of the fluid supplied to the target flowmeter;
And a flow meter. 3. The method of claim 2,
The fluid measurement device includes:
A diverter connected to the target flowmeter for controlling a flow direction of the fluid passing through the target flowmeter; And
A scale unit for collecting the fluid passing through the target flowmeter through the diverter unit and measuring the mass of the fluid;
And a flow meter. 9. The method of claim 8,
The balance unit includes:
Wherein the mass flow rate of the fluid is calculated by measuring the mass of the fluid so that the flow rate of the fluid can be compared with the flow rate of the fluid measured by the object flowmeter. A fluid supply step of supplying fluid to the target flow meter; And
A step of applying a motion to the target flowmeter so as to provide the target flowmeter with an environment as close as possible to the environment of the actual vessel while the fluid is being supplied;
And a flow meter. In Item 10,
The flow rate of the fluid measured by the object flowmeter is collected, the flow rate of the fluid is calculated by measuring the mass of the fluid collected, A target flow meter evaluation step for comparing the flow meter value measured by the target flow meter;
Further comprising the steps of: 11. The method of claim 10,
Wherein the simulating step comprises:
Wherein vibration is applied to the target flowmeter to implement vibrations occurring in the marine engine, and the target flowmeter is tilted at various angles and directions to implement peaking.

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