KR100828005B1 - Device for detecting volume of flowing air - Google Patents

Abstract

A device for detecting air flux is provided to easily perform maintenance by opening a front case through a hinge and a supporting member with high detection accuracy of air flux. A device for detecting air flux includes an air compressor, an air tank(20), air flux detectors, air flux operators(40), a case(11), and a display. The air tank includes air inlets and air outlets. The air compressor takes air through the air inlets into the air tank, and discharges the air in the air tank through the air outlets. The air flux detectors include a body, a heater, and a temperature sensor. The body includes an air inlet and an air outlet for passing air from the air tank through the air flux detectors. The heater heats the air passing through the body. The temperature sensor is arranged adjacent to the heater and detects heating temperature. The air flux operators operate air flux discharged from the air outlet of the body per unit time with temperature data transmitted from the temperature sensor. The case contains the air tank, the air flux detectors, and the air flux operators and is open and closed with a hinge and a supporting member. The display shows the discharged air flux.

Description

Airflow Flow Detection Device {DEVICE FOR DETECTING VOLUME OF FLOWING AIR}

The present invention relates to a device for detecting the flow amount of air supplied to the cable of each channel in the air compressor, more specifically, the flow of air by the heater and the temperature sensor to detect the flow, the calculation means the temperature sensed by the temperature sensor The present invention relates to an air flow rate detection device having a support member provided on a case for calculating the flow rate of air based on the electronic display and displaying the display electronically on the display unit.

Compressed air is used in many industrial fields. Compressed air is discharged from the air compressor, and a plurality of cables connected to the air compressor supply the compressed air destination.

An air flow rate detection device is generally connected between the air compressor and the cable. The air flow rate detection device detects and displays the air flow rate and air discharge pressure per unit time discharged through each cable so that the operator can determine whether it is operating normally.

The present invention relates to an apparatus for detecting the flow amount of air as described above, and more particularly to an apparatus for detecting the flow amount of air provided in a telephone station.

In the conventional air flow rate detection device, the indication of the air flow amount is mechanically displayed. That is, by connecting the transparent tube in the direction of gravity to the cable through which the air flows, and by inserting a ball having a predetermined density into the transparent tube, the ball moves up and down along the transparent tube according to the flow rate per unit time of air passing through the cable It was made. The manager determines the flow rate of air based on the position of the ball in the transparent tube.

The method of detecting and displaying the air flow amount mechanically is not easy for the manager to quickly grasp the air flow amount from the position of the ball, and also detects the flow amount when foreign matter is attached to the ball or deformation occurs in the transparent tube after long-term use. There is a problem of falling accuracy.

The most widely used in order to solve the problem of the mechanical flow amount detection method is the flow amount detection by the Opirus method, such as the 'compressed gas flow rate measuring device' No. 2004-4255. In the Opirus method, pressure sensors are disposed on the inlet side and the outlet side of the Opirus tube, respectively, to detect the pressure of the air that is passed through, and the computing device calculates the flow rate of air based on the signals of these pressure sensors and displays them on the display device.

The flow rate detection device by the opioid method has many advantages over the mechanical method, but the structure is complicated and the accuracy of the flow rate detection is somewhat inferior.

The present invention has been made to solve the above problems, the heater, the temperature sensor and the calculation means more accurately detect the flow amount of air, and displays the detected flow amount electronically air flow amount detection device that can be quickly grasp It is intended to provide.

In addition, it is an object of the present invention to provide a flow rate detection device for mounting the components on the front case, the front case is opened and closed through the hinge portion and the support member in order to increase the convenience of maintenance.

In addition, an object of the present invention is to provide an air flow rate detection device that has a switch that can block the flow of air for each cable and a main lock valve that can block the air flow of the entire cable.

Air flow amount detection device of the present invention for achieving the above object

An air tank having an inlet for receiving air from the air compressor and a plurality of outlets for branching out the injected air;

A flow rate of air provided and distributed on an inner passage of a body having an inlet which is connected to each inlet of each of the air tanks for receiving air, a discharge port for discharging the introduced air, and a body connecting the inlet and the discharge port A plurality of flow amount sensing means including a heater generating heat in proportion to the heater, and a temperature sensor disposed adjacent to the heater to sense a heating temperature of the heater;

A plurality of flow amount calculation means for calculating a flow amount per unit time of air discharged through each of the discharge ports by receiving the temperature sensed by the temperature sensor;

A case in which the open tank, a flow amount detecting means and a flow amount calculating means are mounted therein;

And a display unit provided on the front surface of the case and displaying a flow rate of air discharged by each discharge port calculated by the flow rate calculation unit.

And it is disposed to be exposed to the front of the case, characterized in that it further comprises a switch mounted to the body of the flow rate sensing means for opening and closing the passage inside the body,

It is disposed so as to be exposed to the front of the case, further comprising a pressure measuring instrument is mounted so as to communicate with the inner passage of the body of the flow rate sensing means and the pressure measuring machine is coupled,

The case includes two side cases spaced apart from each other and a front case connecting the two side cases and having a hinge at one end, connecting the side case and the front case, and the hinge part as an axis. It further comprises a support member for supporting the front case is not folded further folded over,

The support member includes a guide pin which protrudes and is fixed to the side case or the front case and has a long hole into which the fixing pin is inserted, and one end of which is rotatably coupled to the front case or the side case. Features,

And a main lock valve including a body connecting the air compressor and the air tank, and a handle disposed on the front case to block the flow of air mounted and circulated in the body.

And a control unit connected to the respective flow amount calculating means to receive and process data, and transmit the processed various information data to the control room.

The display unit has a flow rate display unit for each channel to display the air flow rate per unit time discharged from each discharge port, an air consumption display unit for displaying the air flow rate discharged from the entire discharge port received from the control unit, the discharge port discharged from the control unit A pressure display unit for displaying the pressure and an alarm display unit for indicating whether or not the abnormality of the detection device received from the control unit.

According to the present invention having the above-described configuration, the air flow amount detection accuracy is high, and the air flow amount for each cable, the total air consumption, the pressure of the flowing air, etc. are displayed electronically so that the manager can easily recognize the hinge part and the support member. The front case is flipped open and easy to maintain, easy to use, such as opening and closing each cable through the switch, and opening and closing the entire gable at once through the main lock valve.

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

Figure 1 is a perspective view of the detection device of the present invention from the front and rear, respectively, Figure 2 is a perspective view of the front case is folded open. 3 is a perspective view and a simplified internal structure diagram of the flow amount sensing means.

As shown in the figure, the detection apparatus of the present invention includes a case, an air tank 20, a flow amount detecting means 30, a flow amount calculating means 40, a display portion, a main lock valve, a controller 50, and the like.

The case includes two side cases 14 spaced apart from each other and a front case 11 connecting the two side cases 14.

And the lower end of the front case 11 is provided with a hinge portion 12, the front case 11 is opened by folding the hinge portion 12 to the shaft.

In addition, the support member is bent at an angle to support the open front case 11 is no longer bent.

The support member includes a fixing pin 16 protruding and fixed inside the side case 14 and a guide plate 17 rotatably coupled to the front case 11. A long hole 18 is formed in the guide plate 17 in the longitudinal direction, and the fixing pin 16 is inserted into the long hole 18. Therefore, as the front case 11 is opened, one end of the guide plate 17 gradually descends while the fixing pin 16 is inserted into the long hole 18, and the front case 11 is completely folded and opened. In the guide plate 17, the fixing pin 16 is supported at the end of the long hole 18 so that the front case 11 is no longer flipped.

As such, the front case 11 is folded and opened through the hinge portion 12 and the supporting member, and the front case 11 is supported at a predetermined angle, such that the air tank 20 mounted on the inside of the case and the flow amount sensing means are provided. (30) When the maintenance of components such as the flow amount calculation means 40, the control unit 50, etc. is necessary, loosen the screw on the top of the front case (11) and open the front case (11) to open the maintenance Maintenance can be performed conveniently.

The air tank 20 temporarily receives compressed air from an air compressor (not shown) and temporarily stores the injected air into a plurality of cables C and discharges the injected air. To this end, the air tank 20 is provided with injection holes 21 connected to the air compressor through a hose H2 on both sides, and a plurality of hoses H3 connected to the respective flow amount sensing means 30 are connected. Is provided with an outlet 23. In addition, the injection hole 21 may be provided with a filter (not shown) for removing the foreign matter contained in the air injected from the air compressor.

The main locking valve is connected to the hoses H1 and H2 connecting the air tank 20 and the air compressor.

The main lock valve is connected to the air compressor and the air tank 20 to serve as a flow path of compressed air, and is mounted to the body 71 and is flowed through the body 71 by a manager's operation. It comprises a handle 72 for opening and closing the. The body 71 is disposed inside the case and the handle 72 is disposed outside the front case 11.

The flow amount detecting means 30 detects the flow amount of air discharged from the outlet 23 of each of the air tanks 20 and supplied to the cable C. To this end, the flow rate detecting means 30 has a body having an inlet port 32 connected to the outlet port 23 of the air tank 20 through a discharge port 33 and a hose H3 to which the cable C is connected. 31, and a heater 35 and a temperature sensor 36 provided on the inner passage 34 of the body 31 for connecting the inlet 32 and the discharge port 33. And the body 31 is equipped with a switch 37 and the pressure measuring sphere (38).

The switch 37 and the pressure gauge 38 are arranged to be exposed to the front case 11 for the operator's operation. In addition, the front case 11 is formed with a receiving groove 13 in which the switch 37 is accommodated.

The manager opens or closes the inner passage 34 of the body 31 by pulling or pushing the pressure measuring tool 38 by hand. Then, after removing the cap 39 coupled to the end of the pressure measuring port 38, the pressure measuring machine is coupled thereto to directly measure the pressure of the air filling the inner passage 34 of the body 31.

The heater 35 is coupled to the inner passage 34 of the body 31, and generates heat by hitting the air passing through. That is, it generates heat in proportion to the flow rate of air. The temperature sensor 36 is coupled to the inner passage 34 of the body 31 so as to be adjacent to the heater 35 detects the temperature emitted by the heater 35 and transmits it to the flow rate calculation means 40.

As shown in FIG. 3, an inner passage 34 is formed in the steel body 31, and the heater 35 and the temperature sensor 36 are disposed in the inner passage 34 of the body 31. It is coupled to the member S. The gaps G formed at both ends of the silicon member S are for maintaining the pressure of air flowing in the inner passage 34 of the body 31 at both sides.

The flow rate calculation means 40 has a temperature transmitted from the temperature sensor 36 and passes through the inner passage 34 of the body 31, that is, the unit of air discharged to the cable C through the discharge port 33. Calculate the flow rate per hour. As shown in the figure, the flow rate calculation means 40 is connected to the flow rate detection means 30 in a one-to-one correspondence, and is composed of various electronic devices and microchips mounted on a printed circuit board.

The flow rate calculation means 40 calculates the flow rate of air having the temperature transmitted from the temperature sensor 36 and the diameter of the outer passage 34 in the body 31.

And although not shown in the figure, the inner passage 34 of the body 31 is provided with a humidity sensor for detecting the humidity of the flowing air, a pressure sensor for detecting the pressure of the flowing air, the flow rate calculation means 40 is Humidity and pressure sensor can detect the humidity and pressure.

The controller 50 receives and processes data from each of the plurality of flow rate calculation means 40, and transmits the processed various information data to the control room at the request of the control room. And it is composed of a printed circuit board, and various electronic devices and microchips mounted thereon as the flow rate calculation means (40).

The display unit may include a flow rate display unit 61 for each channel, an air consumption display unit 62, a pressure display unit 63, and an alarm display unit 64.

The flow rate display unit 61 for each channel displays the flow rate per unit time of air discharged through each cable (C) calculated by the plurality of flow rate calculation means 40 in the form of a bar graph and a numerical value.

The air consumption display unit 62 displays numerically the amount of air sent out through the entire cable C that the control unit 50 receives and processes from the plurality of flow amount calculation means 40.

The pressure display unit 63 numerically displays the pressure of air discharged to each cable C transmitted and processed by the controller 50 or the average pressure of air discharged from the entire cable C. FIG.

The alarm display unit 64 indicates whether or not an abnormality of the detection device by a lamp. That is, it is a high-pressure lamp, a low-pressure lamp, a humidity lamp, etc., which are normally lit in green color, but which is illuminated in red when the pressure of air discharged through each cable C is out of the reference value or the humidity is out of the reference value.

The display unit further includes a lamp indicating whether the voltages 5V and 12V supplied to the detection device match the rated voltage, and the front case 11 is provided with a power switch 81 for power supply.

Reference numeral 83 denotes a console port for downloading a program required for the flow rate calculation means and the control unit.

In the above description of the present invention has been described with respect to the air flow rate detection device having a specific shape and structure with reference to the accompanying drawings, the present invention can be variously modified and changed by those skilled in the art, such variations and modifications of the present invention It should be interpreted as being within the scope of protection.

1 is a perspective view of the flow rate detection apparatus according to the present invention seen from the front and rear.

Figure 2 is a perspective view of the front case is flipped.

Figure 3 is a perspective view and internal structure of the flow rate detection means.

<Description of the symbols for the main parts of the drawings>

11: front case 14: side case

16: fixing pin 17: guide plate

18: long hole 20: air tank

21: inlet 23: outlet

30: flow rate detection means 31: body

34: internal passage 35: heater

36: temperature sensor 37: switchgear

38: pressure measuring instrument 40: flow rate calculation means

50: control unit 61: flow rate display unit for each channel

62: air consumption display unit 64: alarm display unit

71: body 73: handle

Claims (8)

An air tank having an inlet for receiving air from the air compressor and a plurality of outlets for branching out the injected air; A body having an inlet which is connected to each inlet of each of the air tanks to receive air, an outlet for discharging the introduced air, and an inner flow path of the air that is provided on the inner passage of the body connecting the inlet to the outlet; A plurality of flow amount sensing means including a heater that generates heat in proportion and a temperature sensor disposed adjacent to the heater to sense a heating temperature of the heater; A plurality of flow amount calculation means for calculating a flow amount per unit time of air discharged through each of the discharge ports by receiving the temperature sensed by the temperature sensor; A case in which the open tank, a flow amount detecting means and a flow amount calculating means are mounted therein; And a display unit provided on the front surface of the case and displaying a flow rate of air discharged by each discharge port calculated by the flow rate calculation unit. The method of claim 1, It is disposed to be exposed to the front of the case, the air flow amount detecting apparatus further comprises a switch mounted to the body of the flow rate detecting means for opening and closing the passage inside the body. The method of claim 2, And a pressure measuring device arranged to be exposed to the front surface of the case and mounted to communicate with an internal passage of the body of the flow rate detecting means and to which a pressure measuring machine is coupled. The method according to any one of claims 1 to 3, The case includes two side cases spaced apart from each other, a front case connecting the two side cases and one end is provided with a hinge, And a support member connecting the side case and the front case and supporting the front case so that the open front case is no longer flipped by the hinge part being pivoted on the shaft. The method of claim 4, wherein The support member includes a guide pin which protrudes and is fixed to the side case or the front case and has a long hole into which the fixing pin is inserted, and one end of which is rotatably coupled to the front case or the side case. Air flow rate detection device characterized in that. The method of claim 5, wherein And a main lock valve including a body connecting the air compressor and the air tank, and a handle disposed on the front case to block the flow of air mounted on the body and to be distributed. Detection device. The method of claim 6, And a control unit connected to each of the flow amount calculating means, to receive and process data, and to transmit the processed various information data to the control room. The method of claim 7, wherein The display unit has a flow rate display unit for each channel to display the air flow rate per unit time discharged from each discharge port, an air consumption display unit for displaying the air flow rate discharged from the entire discharge port received from the control unit, the discharge port discharged from the control unit And a pressure display unit for displaying the pressure, and an alarm display unit for receiving an error from the control unit and displaying an abnormality of the detection device.

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