KR20170073277A - Mobile flowmeter calibration apparatus - Google Patents

Abstract

The present invention provides a mobile flow correction facility. The portable flow correction apparatus includes: a vehicle body portion capable of traveling and having an opening / closing door; A water supply unit installed in the vehicle body and storing a predetermined amount of water; A circulation unit installed at a side of the water receiving unit and circulating the water, the circulation unit being detachably mounted to the calibrating flow meter; And a calibration section installed in the circulation section so as to be at a distance from the calibration target flowmeter and having a reference flow rate value set in advance to calibrate a flow rate value measured in the calibrated flowmeter.

Description

[0001] MOBILE FLOWMETER CALIBRATION APPARATUS [0002]

The present invention relates to a portable flow rate calibration apparatus, and more particularly, to a portable flow rate calibration apparatus capable of moving a flow meter to be calibrated to a fixed place without bringing in and out, .

Normally, calibrating the flowmeter is calibrated using a reference flow meter.

As described above, the calibration method using the conventional master meter (reference flow meter) was performed in a fixed facility (fixed standard room).

Therefore, there is a problem that the period during which the customer can not use the flowmeter, including the transfer period, is inconvenient because the process of importing and exporting the flowmeter to be calibrated is necessary.

Further, conventionally, in the case where the signal acquisition device of the flowmeter to be calibrated is a fixed facility, there is a problem that the reliability of the result is influenced because the calibration test can not be performed integrally.

A prior art related to the present invention is Korean Patent Publication No. 10-2011-0073011 (June 29, 2011).

An object of the present invention is to provide a portable flow rate calibration apparatus capable of moving a flow meter to be calibrated to a stationary place without bringing in and out, and calibrating the calibrated flow meter immediately at the place.

It is another object of the present invention to provide a portable flow rate calibration apparatus capable of shortening the calibration time by reducing the time taken in and out required to calibrate the flowmeter to be calibrated.

It is still another object of the present invention to provide a portable flow rate calibration apparatus capable of ensuring reliability after calibration by installing and calibrating a flowmeter to be calibrated in a fluid channel integral with a water tank.

It is still another object of the present invention to allow the calibration information to be transmitted to and stored in the control unit of the facility where the actual calibration target flowmeter is installed, The present invention provides a portable flow rate calibration apparatus capable of performing a flow rate calibration.

In a preferred aspect, the present invention provides a mobile flow correction facility.

The portable flow correction apparatus includes: a vehicle body portion capable of traveling and having an opening / closing door; A water supply unit installed in the vehicle body and storing a predetermined amount of water; A circulation unit installed at a side of the water receiving unit and circulating the water, the circulation unit being detachably mounted to the calibrating flow meter; And a calibration section installed in the circulation section so as to be at a distance from the calibration target flowmeter and having a reference flow rate value set in advance to calibrate a flow rate value measured in the calibrated flowmeter.

Through the opening of the opening / closing door, the circulation part is preferably exposed to the outside.

The circulation unit may include a first flow pipe disposed horizontally at a lower side of the side surface of the receiving unit so that one end thereof is connected to the receiving unit and a second flow pipe disposed horizontally at a lower side surface of the receiving unit, A discharge pipe connected to the other end of the second flow pipe for discharging the fluid to be flowed to the water tub; and a second flow pipe connected to the other end of the first flow pipe, And a control valve disposed at one end of the first flow path and controlling a flow rate of the fluid flowing through the connection pipe.

The first flow pipe and the discharge pipe, the first flow pipe and the connection pipe, and the second flow pipe and the connection pipe are detachably connected by a clamping method.

Wherein the calibration section is electrically connected to the reference flow meter and the calibration target flow meter to receive a flow rate value measured from the reference flow meter and the calibration target flow meter and to control the drive of the control valve, And a control unit for controlling the display unit.

The control unit may include an integrated terminal in which the reference flow meter, the calibration target flow meter, a power line connected for driving the control valve, and a signal line receiving the flow rate value from the reference flow meter and the calibration target flow meter are integrated desirable.

The other end of the second connection pipe and one end of the discharge pipe are desirably connected to both ends of the flowmeter to be calibrated.

The present invention has an effect that the flow meter to be calibrated can be moved to a fixed place without bringing in and out, and calibration of the calibrated flow meter can be immediately performed at the place.

Furthermore, the present invention has the effect of shortening the calibration time by reducing the time taken in and out of the flowmeter to calibrate the flowmeter to be calibrated.

Further, the present invention has the effect of ensuring reliability after calibration by installing and calibrating the flowmeter to be calibrated in a fluid flow path integral with the water tank.

In addition, the present invention allows the calibration information to be transmitted to and stored in the control unit of the facility in which the actual calibration target flowmeter is installed, and compared with the operation information at the actual facility operation, Effect.

1 is a view showing a configuration of a portable flow rate correction apparatus according to the present invention.
FIG. 2 is an actual photograph showing the movable flow correction apparatus of the present invention. FIG.
3 is a view showing a connection terminal pin according to the present invention.
4 is a conceptual flow chart showing another example of the mobile flow correction facility of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention.

FIG. 1 is a view showing the construction of a portable flow correction apparatus according to the present invention, FIG. 2 is an actual photograph showing a portable flow correction apparatus of the present invention, and FIG. 3 is a view showing a connection terminal pin according to the present invention.

Referring to FIG. 1, the mobile flow correction apparatus of the present invention mainly includes a vehicle body 100, a circulation unit 200, and an orthogonal coordinate system 300.

The vehicle body portion 100 is a vehicle that has a plurality of wheels and is capable of running. An opening / closing door 110 is installed in the vehicle body.

The opening / closing door 110 may be a door capable of opening and closing the left and right sides.

As the opening and closing door 110 is opened and closed, the circulation part 200 according to the present invention is exposed to the outside.

The circulation part 200 according to the present invention is fixedly installed inside the vehicle body part 100.

The circulation unit 200 includes a water receiving unit 210 storing a predetermined amount of water; The flow meter 310 is installed on the side of the water receiving part 210 and is detachably mounted.

The circulation unit 200 includes a water receiving unit 210, a first flow pipe 220, a second flow pipe 230, a connection pipe 240, and a discharge pipe 250.

The water receiving unit 210 stores a predetermined amount of fluid such as water.

A drain valve 211 for draining the fluid to the outside is installed in the receiving part 210.

The first flow pipe 220 is fixed to a side portion of the water receiving portion 210 and has a predetermined length along the horizontal direction.

A conditioner (C) is installed at the other end of the first flow pipe (220).

The other end of the first flow pipe 220 is connected to the lower end of the receiver 210 and the other end of the first flow pipe 220 is connected to the end of the connection pipe 240.

The second flow pipe 230 is fixed to a side upper end of the water receiving part 210 so as to be positioned above the first flow pipe 220.

One end of the first flow pipe 220 and one end of the second flow pipe 230 are connected by a connection pipe 240.

Here, the connection pipe 240 is disposed along the vertical direction along one end of the second flow pipe 230 at one end of the first flow pipe 220.

A conditioner (C) is installed at one end of the second flow pipe (230).

The other end of the second flow pipe 230 is connected to the discharge pipe 250.

The discharge pipe (250) is connected to the water receiving part (210).

Although not shown in the drawings, a part of the pipe from the water receiving part 210 may be connected to the first flow pipe 220, and a part of the pipe may be a bypass pipe that returns to the water storage tank through the control valve 260 .

Here, the first flow pipe 220 is connected to the connection pipe 240 in a clamping manner so as to be detachable.

Also, the second flow pipe 230 is connected to the connection pipe 240 and the discharge pipe 250 in a clamping manner.

Therefore, each of the tubes can be easily detached from each other.

On the other hand, the calibrated flow meter 310 to be calibrated is detachably installed on the second flow pipe.

The reference flow meter 320 is detachably mounted on the first flow pipe 220.

The calibration unit 300 according to the present invention is installed in the circulation unit 200 at a distance from the calibrated flow meter 310 and measures the flow rate measured by the calibration target flow meter 310 And a reference flow meter 320 for setting a reference flow rate value to be set.

The calibration unit 300 is electrically connected to the reference flow meter 320 and the calibration target flow meter 310 to receive a flow rate value measured from the reference flow meter 320 and the calibration target flow meter 310 And a control unit 330 for controlling driving of the control valves 260 and 270 and setting the reference flow rate value.

The control unit 330 includes a power line connected to the reference flow meter 320 for driving the calibration flow meter 310 and the control valves 260 and 270 and a power line connected to the reference flow meter 320 and the calibration subject flow meter 310, As shown in FIG. 3, in which the signal line for receiving the flow rate value is formed as a single unit.

According to the present invention, in the present invention, by providing the conditioner at the front end of the first flow path and at the front end of the second flow path, the required length of the front end of the pipe can be shortened, .

Further, in the present invention, the reference flow meter and the flowmeter to be calibrated are disposed on the side surface of the water storage tank, so that the opening and closing door of the vehicle body portion is opened and exposed to the outside.

Further, in the present invention, by providing control valves and controlling the flow amount of the fluid flowing along the circulation part, it is possible to control the flow amount without directly approaching the operator.

Also, by connecting the pipelines by the clamping method, it is possible to easily change the flowmeter to be calibrated, which is the reference flowmeter.

Although not shown in the drawings, the pump for fluid flow can be immediately used in a work site using a device driven by a 220V single phase.

With reference to the above structure and operation, the embodiment according to the present invention can move the flowmeter to be calibrated to a fixed place without carrying in and out, and calibrate the flowmeter to be calibrated immediately at the place.

Further, the embodiment according to the present invention can shorten the calibration time by reducing the take-in and take-out time required to calibrate the flowmeter to be calibrated.

Further, in the embodiment according to the present invention, the calibration target flowmeter can be installed and calibrated in the fluid channel that is integral with the water tank, thereby ensuring the reliability after calibration.

Further, the embodiment of the present invention allows the calibration information to be transmitted to and stored in the control unit of the facility in which the actual calibration target flowmeter is installed, and is compared with the operation information at the actual facility operation, can do.

4 is a conceptual flow chart showing another example of the mobile flow correction facility of the present invention.

With reference to FIG. 4, a control flow for error determination in actual operation after the calibration of the flowmeter after the actual calibration will be further described.

First, the flowmeter to be calibrated is installed. Next, the reference flow meter and the calibration target flow meter are driven.

The first flow rate Q1 in the reference flowmeter and the second flow rate Q2 in the calibrated flowmeter are measured and the error between them is calculated.

If an error occurs, calculate the calibration value and apply this calibration value to the flowmeter to be calibrated.

Next, the flowmeter to be calibrated is installed on the actual installation to measure the third flow rate Q3, and it is confirmed whether or not the third flow rate of the measured flow rate matches the value to which the calibration value is applied.

If a match is found, the calibration can be completed and a new calibration value can be calculated and a new calibration value can be applied if a difference occurs.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be understood that various changes and modifications may be made without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

100:
200: circulation part
300: Correction

Claims (3)

A vehicle body portion which is capable of traveling and on which an opening / closing door is installed;
A water supply unit installed in the vehicle body and storing a predetermined amount of water;
A circulation unit installed at a side of the water receiving unit and circulating the water, the circulation unit being detachably mounted to the calibrating flow meter; And
And a calibration unit installed in the circulation unit to make a distance from the calibrated flowmeter and having a reference flow rate set in advance to calibrate a flow rate value measured by the calibrated flowmeter,
And the circulation part is exposed to the outside through the opening of the opening / closing door.
The method according to claim 1,
The circulation unit includes:
A first flow pipe disposed horizontally at a lower side of the side of the water receiving portion so that one end thereof is connected to the water receiving portion,
A second flow pipe disposed horizontally on a side upper end of the water receiving portion and provided with the flowmeter to be calibrated,
A discharge pipe connected to the other end of the second flow pipe and discharging the fluid to be flowed to the water tub,
A connection pipe connecting the other end of the first flow pipe and one end of the second flow pipe,
And a control valve provided at one end of the first flow path and controlling a flow rate of the fluid to be flowed.
3. The method of claim 2,
Wherein the calibration unit comprises:
And a control unit electrically connected to the reference flow meter and the calibrated flow meter to receive a flow rate value measured from the reference flow meter and the calibrated flow meter, to control the drive of the control valve, and to set the reference flow rate value However,
Wherein,
Wherein the reference flow meter and the calibrating target flow meter are connected to each other by a movable terminal, the reference terminal being connected to the reference flow meter, the calibrating target flow meter, the power line connected for driving the control valve, and the signal line receiving the flow rate value from the reference flow meter, Flow correction facility.

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