KR101542699B1 - System and method for measuring ventilation capacity of ventilation instruments in tunnel for tab - Google Patents

Abstract

Disclosed is a system for measuring the ventilation capacity of ventilation instruments in a tunnel for TAB. The system for measuring the ventilation capacity is manufactured by assembling pipes with connection members to include front vertical parts, back vertical parts, a left and right horizontal connection part, and a front and back horizontal connection part. It includes a movable stage which has a caster wheel formed in the lower end of the front vertical part and can move in a tunnel; wind speed sensors which are fixed to a predetermined front side of the movable stage, simultaneously measure wind speed at several places in the corresponding range of the tunnel, and have each fixing position located on the front pipes of the movable stage; and a computer which processes signals received from the wind sensors and is installed to a mount part installed to the movable stage.

Description

TECHNICAL FIELD [0001] The present invention relates to a system and a method for measuring ventilation force for a TAB in a tunnel,

[0001] The present invention relates to a system and a method for measuring ventilation force for TAB of a ventilating facility in a tunnel, and more particularly, The present invention relates to a system and a method for measuring the ventilation force of a ventilation system for balancing a ventilation system. The present invention can also be applied to an improvement of ventilation and pressure measurement devices such as a pressure measurement instrument, a multi-channel data logger, a wind speed sensor and a transmitter, And a method for collectively measuring the ventilation force by integrating the measurement equipment of the present invention.

Testing, Adjusting and Balancing (TAB) in tunnel ventilation refers to testing, adjusting and evaluating ventilation equipment installed in a tunnel to provide a comfortable environment in a tunnel during smooth traffic and to provide a safe evacuation environment in case of a fire accident in a tunnel. In the past, the tunnel ventilation did not recognize the necessity of TAB, so the distribution of contamination in the tunnel was not consistent as a result of neglecting the application. However, due to the improvement in living standards and the development of industries, the demand for comfortable environment in tunnels has increased and TAB technology has been improved. Recently, TAB has been carried out in almost all tunnels equipped with ventilation facilities. The performance of the TAB is very important for comparing the design values and the measured values in the field of road tunnel.

As a typical mechanical ventilation system of a tunnel, there is a type ventilation system. There are two types of ventilation: jet fan type, vertical jet transmission type, electrostatic precipitator type, and the like. Especially, jet fan type is representative. The jet fan type generates ventilation air in the longitudinal direction of the tunnel by increasing the pressure of the jet fan by using the roadway as the air passage. When applied to an excessively long tunnel, the number of installed jet fans is large, It is suitable for tunnels with a length of less than 3000m, easy maintenance, low installation cost, no need for ducting, and low loss due to the use of roadway.

In performing the TAB for the ventilation equipment of the tunnel adopting the type-based ventilation system as described above, it is conventionally required that the operator individually measures and records the wind speed at each point by using a measuring instrument for measuring the ventilation force. Therefore, the time required for the measurement becomes longer, the labor is increased, and the cost increases. Also, since it is necessary to measure the ventilation power and the wind speed separately for each section within the tunnel and for each point of each section, a large number of workers and many measuring instruments are required. Therefore, it is required to provide a system that can measure wind speeds of several points in one section of a tunnel simultaneously and facilitate the movement of tunnels so that measurement in one section can be performed quickly in another section.

Korean Patent Publication No. 10-2007-0078237 (2007. 31. 2007) Korean Patent Publication No. 10-2010-0024138 (Mar. 05, 2010)

Therefore, one problem to be solved by the present invention is to provide a tunnel in which a plurality of points of wind speeds can be simultaneously measured at one point in a tunnel and tunneling can be easily performed, The present invention provides a ventilation force measuring system for a TAB of a ventilation system and a method for measuring the ventilation power in a tunnel using the same.

Another problem to be solved by the present invention is to install a plurality of wind speed sensors at various positions corresponding to the measurement points inside the tunnel on which the assembly is easy and easy to move in an assembled state, (EN) A ventilation force measuring system and method for a TAB (test, calibration, evaluation) of a ventilation system.

According to an aspect of the present invention, there is provided a ventilation force measuring system for a TAB of a type ventilating facility in a tunnel, the ventilation force measuring system including a plurality of front vertical portions, a plurality of rear vertical portions, left and right horizontal connecting portions, A movable platform which is manufactured by assembling pipes with connecting members so as to include the caster wheels at the lower end of the plurality of front vertical parts and can move within the tunnel; Wherein the plurality of wind speed sensors are fixed at predetermined positions on the front side of the movable platform so as to simultaneously measure wind speeds at a plurality of locations in the corresponding section of the tunnel, ; And a computer for processing signals received from the plurality of wind speed sensors and mounted on a mount provided on the movable platform.

According to one embodiment, some of the pipes extend upwardly higher than the plurality of front vertical portions to form a plurality of forward vertical extensions, and some of the wind speed sensors are connected to the forward vertical extension portion Respectively.

According to an embodiment, the front vertical extension and the rear vertical extension each include an upper vertical aluminum pipe and a lower vertical aluminum pipe assembled up and down by a connecting member, and the left and right horizontal connection portions and the front and rear horizontal connection portions Is formed by assembling adjacent horizontal aluminum pipes by a connecting member, and the mounting portion is installed with four lower connecting points of the lower vertical aluminum pipe.

According to another aspect of the present invention, there is provided a ventilation force measuring method for a TAB of a kind-based ventilation system in a tunnel, the ventilation force measuring method comprising the steps of assembling pipes with connecting members, A mobile mount assembly for manufacturing a mobile mount including a vertical part, a plurality of rear vertical parts, a left and right horizontal connection part and a front and rear horizontal connection part; An anemometer sensor fixing step of fixing a plurality of wind speed sensors to the movable platform so that the wind speed sensors are all on a virtual coplanar plane at a predetermined position on the front side of the movable platform; Moving the movable platform in which the wind speed sensors are fixed within a tunnel and positioning the movable platform in a specific measurement section; Measuring a plurality of wind speeds within the specific measurement interval using the wind speed sensors in the specific measurement interval; And moving the movable platform with the wind speed sensors fixed in another specific measurement period in the specific measurement period.

According to the present invention, it is possible to simultaneously measure the wind speeds at various points in a tunnel and to facilitate the tunnel movement, so that the measurement can be performed quickly in different sections after measurement in one section. Measurement system is implemented.

1 is a front view showing a ventilation force measuring system for a TAB of a ventilating facility in a tunnel according to an embodiment of the present invention.
FIG. 2 is a side view showing the ventilation force measuring system shown in FIG. 1. FIG.
Figs. 3 and 4 are views for explaining a method of performing natural wind measurement and main measurement in a tunnel. Fig.
5 is a flowchart for explaining a method for measuring ventilation force for a TAB of a ventilation facility in a tunnel using a ventilation force measuring system.
FIG. 6 is an exemplary view showing details of the ventilation force measurement.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings and the description thereof are intended to aid those of ordinary skill in the art in understanding the present invention. Accordingly, the drawings and description are not to be construed as limiting the scope of the invention.

FIG. 1 is a front view showing a ventilation force measuring system for TAB of a ventilating facility in a tunnel according to an embodiment of the present invention, and FIG. 2 is a side view showing the ventilation force measuring system shown in FIG.

1 and 2, a ventilation force measuring system 1 according to an embodiment of the present invention may be disposed in a tunnel T such that the front and back surfaces face the entrance and the exit of the tunnel T. [ A plurality of wind speed sensors 20 installed at a plurality of points preset in the movable platform 10 and a computer 30 installed at any position in the portable platform 10, .

The movable pedestal 10 is formed by assembling aluminum pipes by using intermediate connecting members, and includes five front vertical portions 11 arranged in a row in the left-right direction from the front side, And the left and right horizontal connection portions 13a and 13b connecting the five front vertical portions 11 and the five rear vertical portions 12 to each other in the right and left direction, 13b. The mobile mount 10 also includes front and rear horizontal connecting portions 14a and 14b connecting the front vertical portion 11 and the rear vertical portion 12 back and forth. In addition, the mobile pedestal 10 has three vertically extending portions 15 extending on the same axis as the three vertically positioned vertical portions 11 and extending upwardly beyond the horizontal connecting portion located on the uppermost side, .

A caster wheel 50 is provided at the lower end of each of the five front vertical portions 11 and at the lower end of each of the five rear vertical portions 12 so that the movable platform 10 can be easily moved within the tunnel T Respectively.

Each of the front vertical portions 11 and the rear vertical portions 12 are composed of lower aluminum pipes 111 and 121 and upper aluminum pipes 112 and 122 which are vertically assembled by a connecting member 17. At this time, the above-described caster wheel 50 is connected to the lower ends of the lower aluminum pipes 111 and 121. The left and right horizontal connection portions 13a and 13b and the front and rear horizontal connection portions 14a and 14b each include horizontal aluminum pipes connected by a connection member 17. [ Further, it is preferable that the movable mount 10 is reinforced by the inclined members 19 assembled in an X-shape.

The mobile mount 10 comprises an assembly of aluminum pipes or linear members so as to provide only a minimal area where wind speed sensors 20 can be installed. This reduces the overall weight of the ventilation force measuring system 1 and can greatly contribute to enhancement of mobility. In addition, the mobile mount 10 is provided at its lower side with a mounting portion 18 provided with four neighboring vertical vertical aluminum pipes as four connection points, and the mounting portion 18 is provided with an air speed sensor 20 A computer 30 as a processor for processing the wind speed information received from the wind speed sensors 31,

In the present embodiment, eighteen wind speed sensors 20 are fixedly installed at 18 preset positions on the front side of the movable table 10, respectively. More preferably, the position where the wind speed sensors 20 are installed is most preferably determined on the front vertical portion 11 and the front vertical extending portion 15.

The operator uses the 18 wind speed sensors 20 installed on the movable platform 10 in a state where the movable platform 10 is stopped in a predetermined measurement interval in the tunnel T in which the jet fan is operated, It is possible to measure the wind speed in 18 positions. The measured wind speed information is transmitted to the computer 30 mounted at any position in the portable mount 10 and stored and processed in the computer 30. When the wind speed measurement in the specific measurement section is completed, the operator can move the movable platform 10 to the other measurement section using the caster wheel 50, and then measure the wind speed in the same manner as described above. In addition, the operator can measure the wind speed of a specific one of 18 positions by using the wind speed sensor of one of the 18 wind speed sensors 20 without using or operating the jet fan, or by using a separate wind speed meter .

Figs. 3 and 4 are views for explaining a method of performing natural wind measurement and main measurement in a tunnel. Fig.

In order to measure the natural wind in the tunnel, measurement is performed by setting measurement points as shown in FIG. The natural wind measurement point in the tunnel is the point where the average wind speed of the measured wind speed is measured among 18 points of the main measurement point which will be explained in detail below. do. The natural wind measurement in the tunnel shall be measured and installed at the same position as the main measurement installation position on the other side.

For measurement (main measurement) after the operation of the jet fan in the tunnel, the main measuring point is square ducted from the building limit line to the area within the tunnel. 18 points are selected as shown in FIG. 4 in accordance with the same area division method defined by the technical standards, and a point having a constant airflow distribution in the tunnel is selected. The ventilation force measuring system 1 including the movable platform 10 and the 18 wind speed sensors 20 is measured by positioning the 18 wind speed sensors 20 corresponding to the 18 points.

FIG. 5 is a flowchart for explaining a method for measuring ventilation force for a TAB of a ventilating facility in a tunnel using the ventilation force measuring system 1 described above.

5, the method for measuring the ventilation force includes the steps of assembling the portable mount (S11), fixing the wind speed sensor (S12), installing the computer (S13), and connecting the computer and the wind speed sensor And a system building step (S1). Before the wind speed sensor fixing step (S12), a step of selecting the position of the wind speed sensor is performed. The constructed system simultaneously measures the wind speed in several places in the tunnel and is automatically logged on the computer.

When the system building step S1 is completed, the mobile stage moving step S2 and the measurement and measurement data output step S3 are performed in order. After outputting the measurement data in the measurement and measurement data output step S3, the jet fan system is adjusted (S4), and the next optimum setting S5 is performed. Next, the trial operation (S6) is performed, and the next result report is prepared and submitted.

FIG. 6 is an exemplary view showing details of the ventilation force measurement. Referring to FIG. 6, it can be seen that the basic condition evaluation of the fan, the drawing of the system diagram, the system diagram review (simulation), the selection of the measuring instrument, the setting of the measuring instrument, the preparation for commissioning, the commissioning and the preparation of the result report are performed. When evaluating the basic conditions of the fan, electrical system check, motor performance check and automatic control system check are considered. When creating a system drawing, the NO setting of the fan and the determination of the measurement point are considered. When reviewing the schematic, the necessary measurement instruments, correction for ambient temperature, humidity, and correction for altitude are considered. When selecting a measuring instrument, a list and calibration data are considered. Expert personnel are put into setting the measuring equipment. When preparing for commissioning, the fixed state of the fan, the direction of rotation, the power system and the automatic control system are considered. At the time of commissioning, confirmation of the preliminary check list, fan discharge air flow rate, rotation speed measurement, and noise measurement are considered. When producing the resulting report, the performance status of the fan, automatic control operating status and interlock status check are considered.

10: movable platform 11: front vertical part
12: rear vertical part 13a, 13b: left and right horizontal connection part
14a, 14b: front and rear horizontal connecting portion 15:
20: wind speed sensor 30: computer
50: Caster wheel

Claims (4)

A measuring system for measuring a ventilation force for a TAB of a type of ventilating facility in a tunnel by measuring a wind speed at a plurality of wind speed measuring points previously selected in accordance with the same area dividing method,
A plurality of front vertical parts formed by assembling the upper vertical aluminum pipes, the lower vertical aluminum pipes and the horizontal aluminum pipes with the connecting members, arranged in a row in the left-right direction from the front side, A plurality of rear vertical portions arranged so as to be parallel to each other in a row from the rear side to the rear vertical portion, a plurality of left and right horizontal connecting portions connecting the plurality of front vertical portions and the plurality of rear vertical portions horizontally, And upper and lower vertical aluminum pipes, which are located at the center among the upper vertical aluminum pipes constituting the plurality of front vertical portions, extend upwardly higher than the front vertical portion, Constitute a forward vertical extension, A caster wheel is installed at a lower end of each of the vertical portions and a lower end of each of the plurality of rear vertical portions and a lateral distance between the plurality of forward vertical portions is made corresponding to the left and right spacing of the plurality of measurement points;
A plurality of wind speed sensors for measuring wind speeds at a plurality of locations in the section section of the tunnel, the wind speed sensors being fixed to the front vertical section and the front vertical extension section at positions corresponding to the plurality of pre-selected wind speed measurement points, Wind speed sensors;
And a computer for processing signals received from the plurality of wind speed sensors, wherein the computer is mounted on a mount provided on the movable platform,
The left and right horizontal connection portions and the front and rear horizontal connection portions are assembled by connecting horizontal aluminum pipes adjacent to each other, and the mounting portion includes four lower vertical aluminum pipes of the lower vertical aluminum pipes as four connection points Wherein the ventilation system is installed in a tunnel. delete delete A ventilation force measuring method for a TAB of a ventilating system in a tunnel, which measures the ventilation force for the TAB of the ventilating system in a tunnel by using the ventilation force measuring system according to claim 1,
A natural wind measuring step of measuring the wind speed of the natural wind in the tunnel;
And a main measuring step of measuring the wind speed after the operation of the jet fan in the tunnel,
The natural wind measuring step may include measuring the wind speed of the natural wind using the wind speed sensor coincident with the average wind speed point in a state where the wind speed sensor of one of the plurality of wind speed sensors coincides with the average wind speed point in the tunnel,
The main measurement step may include moving the movable platform to which the plurality of wind speed sensors are fixed in the tunnel and positioning the portable platform in a specific measurement period; Measuring a plurality of wind speeds in the specific measurement interval using the plurality of wind speed sensors in the specific measurement interval; Moving the mobile platform to which the plurality of wind speed sensors are fixed in another specific measurement interval in the specific measurement interval; And measuring a plurality of wind speeds in the specific measurement section using the plurality of wind speed sensors in the other specific measurement section.

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