KR19990070068A - Electronic device that simultaneously measures and displays fluid flow, pressure and temperature - Google Patents

Abstract

In order to simultaneously measure the flow rate, fluid pressure and temperature of the fluid such as chemical water and cooling water flowing along the supply pipe, the flow rate sensor, the fluid pressure sensor and the temperature sensor are integrally formed and installed in the supply pipe to be measured. An electronic device for simultaneously measuring and displaying flow rate, fluid pressure and temperature such that flow rate, fluid pressure and temperature are displayed. A supply pipe is connected to a fluid supply unit for supplying a fluid such as chemical liquid, cooling water, and waste water so that the fluid is supplied to the storage tank. One side of the supply pipe is provided with a first sensor unit in which a flow rate sensor and a fluid pressure sensor are integrated, and a second sensor unit in which a flow rate sensor and a temperature sensor are integrated at a position facing the first sensor unit. Is installed. Signals corresponding to the flow rate, fluid pressure, and temperature detected by the first and second sensor units are amplified by the amplifier and applied to the controller. The control unit compares the signals corresponding to the fluid pressure, flow rate and temperature applied through the amplification unit and simultaneously displays them on the display unit, so that the measurer can simultaneously check the pressure, flow rate and temperature of the fluid flowing through the supply pipe through the display unit. There is.

Description

Electronic device that simultaneously measures and displays fluid flow rate, pressure and temperature

The present invention relates to an apparatus for measuring the flow rate, fluid pressure and temperature electronically, and more specifically, the flow rate detection to measure the flow rate, fluid pressure and temperature of the fluid, such as chemical water and cooling water flowing along the supply pipe at the same time The present invention relates to an electronic device that simultaneously measures and displays the flow rate, pressure, and temperature of a fluid so that a sensor, a fluid pressure sensor, and a temperature sensor are integrally formed and installed in a supply pipe to be measured. .

In general, an electronic flowmeter is installed in a measuring tube through which the fluid flows, and the flow rate and the fluid pressure of the fluid flowing through the pipe of the measuring tube are measured. However, if the length of the pipe in which the electronic flowmeter for measuring the fluid flowing along the pipe of the measuring tube is not long enough, solid or rust is non-uniformly attached to the inner wall surface of the upstream pipe of the pipe in which the electronic flowmeter is installed, or at the bottom of the pipe. If solids are precipitated or if the fluid to be measured is a slurry containing solids that are susceptible to precipitation or flotation, a drift fluid is formed. In order to accurately measure the drift fluid, an electromagnetic flowmeter having a function of generating a function distribution magnetic field has been developed and used.

1 is a view showing a state in which the conventional flow sensor and the temperature sensor is installed.

Referring to Figure 1, the fluid supply unit 10 for supplying a chemical liquid, cooling water and waste water; A supply pipe (18) connected to the fluid supply unit (10); A storage tank 12 connected to the supply pipe 18; A temperature sensor 16 mounted on one side of the supply pipe 18; And it consists of a flow rate sensor 14 mounted on one side of the supply pipe (18). As can be seen from the above configuration, in order to detect a supply amount of a chemical liquid, cooling water or waste water, which is supplied from the fluid supply unit 10 to the storage tank 12 side, the flow rate sensor 14 is connected to the supply pipe 18. In order to detect the flow rate by installing on one side, and to measure the temperature of the fluid at the same time, the temperature detection sensor 16 is installed on the other side of the supply pipe 18 to detect the temperature of the fluid. Therefore, in order to measure the flow rate and temperature of the fluid flowing through the supply pipe 18 from the fluid supply unit 10, the corresponding flow rate sensor 14 and the temperature sensor 16, etc., respectively, the supply pipe 18 Since the temperature and flow rate are measured by installing on one side, the process of installing each sensor on the supply pipe 18 is cumbersome, and the measurer cannot check each sensor separately, and thus can not execute a quick measurement.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to measure the flow rate, fluid pressure and temperature of the fluid supplied through the supply pipe from the fluid supply at the same time the flow rate that can be displayed on the display The present invention provides a device for simultaneously measuring and displaying fluid pressure and temperature.

It is another object of the present invention to provide an apparatus in which a flow rate sensor and a fluid pressure sensor are integrated to simultaneously measure the flow rate and the fluid pressure of the fluid supplied from the fluid supply portion through the supply pipe.

Still another object of the present invention is to provide an apparatus in which a flow rate sensor and a temperature sensor are integrated so as to simultaneously measure the flow rate and the temperature of the fluid supplied from the fluid supply portion through the supply pipe.

Still another object of the present invention is to provide a device capable of simultaneously measuring the temperature, flow rate and fluid pressure of a fluid supplied through a supply pipe from a fluid supply unit and simultaneously displaying the same on one display unit.

1 is a view showing a state in which the conventional flow sensor and the temperature sensor is installed.

2 is a view showing a sensor for detecting the flow rate and the fluid pressure according to the present invention.

3 is a view showing a sensor for sensing the flow rate and temperature according to the present invention.

Figure 4 is a perspective view schematically showing an electronic device for simultaneously measuring and displaying the flow rate, fluid pressure and temperature according to the present invention.

5 is a block diagram schematically illustrating an electronic device for measuring and displaying a flow rate, a fluid pressure, and a temperature according to the present invention.

<Description of the reference numerals for the main parts of the drawings>

20: first sensor 22, 52: head

24: fluid pressure sensor 26: through hole

28, 58: thread 30: tube

32: bush 34: nut

40: flow rate sensor 50: second sensor unit

54: blind hole 56: temperature sensor

60: first amplifier 64: second amplifier

66: third amplifying unit 70: A / D converter unit

80: control unit 82: external main control unit

84: display unit 90: flange

92: stainless steel pipe 94: supply pipe

96: magnetic field generating unit 100: electronic device

In order to achieve the above object, the present invention is mounted on the line of the electronic device installed on one side of the supply pipe, the flow rate sensor for detecting the amount of fluid flowing through the supply pipe and the fluid pressure for detecting the pressure of the fluid A first sensor unit having a detection sensor; A second sensor unit mounted to a lining of an electronic device installed at one side of the supply pipe, the flow sensor detecting a quantity of fluid flowing through the supply pipe and a temperature sensor detecting a temperature of the fluid; A first amplifier configured to amplify a signal applied from the flow rate sensor of the first sensor unit and the flow rate sensor of the second sensor unit; A second amplifying unit configured to amplify a signal applied from the fluid pressure sensor installed in the first sensor unit; A third amplifier for amplifying a signal applied from a temperature sensor installed in the second sensor unit; An AD converter for converting an analog signal applied from the first amplifier, the second amplifier, and the third amplifier into a digital signal; And an electronic device which is connected to the AD converter unit and which simultaneously measures and displays the flow rate, pressure, and temperature of the fluid, which is a control unit configured to perform a comparative operation on the signal applied through the AD converter unit to display the display unit provided on one side of the electronic device. To provide.

According to the present invention, a supply pipe is connected to a fluid supply unit for supplying a fluid such as chemical liquid, cooling water, and waste water so that the fluid is supplied to the storage tank side. One side of the supply pipe is provided with a first sensor unit in which a flow rate sensor and a fluid pressure sensor are integrated, and a second sensor unit in which a flow rate sensor and a temperature sensor are integrated at a position facing the first sensor unit. Is installed. Signals corresponding to the flow rate, fluid pressure, and temperature detected by the first and second sensor units are amplified by the amplifier and applied to the controller. The control unit compares the signals corresponding to the fluid pressure, flow rate and temperature applied through the amplification unit and simultaneously displays them on the display unit, so that the measurer can simultaneously check the pressure, flow rate and temperature of the fluid flowing through the supply pipe through the display unit. There is.

Hereinafter, a preferred embodiment of an electronic device for simultaneously measuring and displaying a flow rate, pressure, and temperature of a fluid according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a view showing a sensor for detecting the flow rate and the fluid pressure according to the present invention.

3 is a view showing a sensor for sensing the flow rate and temperature according to the present invention.

Figure 4 is a perspective view schematically showing an electronic device for simultaneously measuring and displaying the flow rate, fluid pressure and temperature according to the present invention.

5 is a block diagram schematically illustrating an electronic device for measuring and displaying a flow rate, a fluid pressure, and a temperature according to the present invention.

2 to 5, a supply pipe 94 is connected to a fluid supply unit (not shown) for supplying waste water or cooling water, and an electronic device 100 is installed on one side of the supply pipe 94. The lining 91 of the electronic device 100 detects the electromotive force generated by the magnetic field applied to the fluid flowing along the supply pipe, and detects the flow rate sensor 40 for measuring the flow rate and the pressure applied from the fluid. The first sensor unit 20 in which the fluid pressure sensor 24 is integrally provided is installed. In addition, the lining 91 of the electronic device 100 detects the electromotive force generated by the magnetic field applied to the fluid flowing along the supply pipe, and detects the flow rate sensor 40 for measuring the flow rate and the temperature applied from the fluid. The second sensor unit 50, which is integrally provided with the temperature sensor 56, is installed so as to face the first sensor unit 20.

The electromotive force detected by the first sensor unit 20 and the second sensor unit 50 is from the magnetic field generating unit 96 installed at a diagonal position with the first sensor unit 20 and the second sensor unit 50. This is caused by the magnetic field applied to the fluid (the principle of measurement of the electromagnetic flowmeter is a known principle). The flow rate sensor 40 constituting the first sensor unit 20 and the second sensor unit 50 detects the electromotive force by the contact surface in contact with the fluid flowing through the supply pipe 94, the first sensor The fluid pressure sensor 24 of the unit 20 is inserted into the through hole 26 provided in the center of the body of the first sensor unit 20, and the fluid flowing through the supply pipe 94 receives the through hole. The pressure of the fluid is detected by detecting the pressure generated by the inflow along the 26. In addition, the temperature sensor 56 of the second sensor unit 50 is a temperature at which one side portion provided in the center of the body of the second sensor unit 50 is inserted into the sealed hole 54 sealed and applied from the fluid. Will be detected.

A first amplifier 60 is connected to the flow rate sensor 40 of the first sensor unit 20 and the flow rate sensor 40 of the second sensor unit 50, and the first amplifier 60 is connected to the flow rate sensor 40 of the first sensor unit 20. The amplified signal from the flow rate sensor 40 to a signal of a constant size. A second amplification unit 62 is connected to the fluid pressure sensor 24 installed in the first sensor unit 20, and the second amplification unit 62 receives a signal applied from the fluid pressure sensor 24. It is amplified by a signal of a certain magnitude. The third amplification unit 64 is connected to the temperature sensor 56 installed in the second sensor unit 50, and the third amplification unit 64 sets a signal applied from the temperature sensor 56. It is amplified by a signal of magnitude.

An A / D converter 70 is connected to the first amplifier 60, the second amplifier 62, and the third amplifier 64, and the A / D converter 70 is the first amplifier. The analog signal applied from the unit 60, the second amplifier 62, and the third amplifier 64 is converted into a digital signal. A control unit (MPU) 80 is connected to the A / D converter unit 70, and the control unit 80 compares and applies a signal applied through the A / D converter unit 70 to the display unit 84. Will be displayed. The display unit 84 is mounted outside the electronic device 100 and simultaneously displays the temperature, fluid pressure, and flow rate of the fluid applied from the controller 80.

Referring to FIGS. 2 and 4, when the first sensor unit 20 and the second sensor unit 50 are installed in the electronic device 100, the head part 22 of the first sensor unit 20 will be described. The inner surface of the lining 91 constituting the electronic device 100 contacts the inner surface of the lining 91, and a stainless pipe 92 is positioned on the next surface of the lining 91. Since a thread 28 is formed on the surface of the body of the first sensor unit 20, a bush 32, which is an insulator, is installed between the stainless pipe 92 and the body of the first sensor unit 20. The electromotive force detected by the first sensor unit 20 is not leaked to the stainless pipe 92. Next to the bush 32 provided in the body of the first sensor unit 20, two nuts 34 are provided, and a contact terminal 38 is installed between the two nuts 34 to establish a first sensor. The electromotive force sensed by the head 22 of the unit 20 is applied to the first amplifier 60 through the contact terminal 38.

The through hole 26 is formed at the center of the body of the first sensor unit 20, and the tube 30 is mounted at the rear of the through hole 26. Since the tube 30 is in contact with the fluid pressure sensor 24, air pressure is generated in the tube 30 by the fluid introduced into the through hole 26, so that the fluid pressure sensor 24 is connected to the tube 30. The generated air pressure is sensed and applied to the second amplifier 62.

The state in which the second sensor unit 50 is mounted on the lining 91 of the electronic device 100 is the same as that of the first sensor unit 20, and a hole is also formed in the center of the body of the second sensor unit 50. Although this is formed, the head 50 is in a sealed state, and the blind hole 54 is formed. Since the temperature sensor 56 is installed in the blind hole 54, the temperature is sensed and applied to the third amplifying unit 64.

Reference numeral 36 in FIGS. 2 and 3 is a ring nut, and 90 is a flange.

Hereinafter, described in detail through one embodiment of the present invention attached as follows.

First, a supply pipe 94 is connected to a fluid supply unit (not shown) for supplying a fluid such as chemical liquid, cooling water, and waste water to supply the fluid to a storage tank (not shown). One side of the supply pipe 94 is easy to check and maintain by the measurer, the electronic device for measuring and displaying the flow rate, fluid pressure and temperature at the same time by selecting a position where the fluid flows uniformly and full through the supply pipe 94 Install 100. The magnetic field is generated by applying power to the magnetic field generator 96 in the fluid flowing through the supply pipe 94. Since the magnetic field generating unit 96 is installed to be perpendicular to the first sensor unit 20 and the second sensor unit 50, electromotive force is generated by the action of the magnetic field and the fluid. The electromotive force is detected by the first sensor unit 20 and the second sensor unit 50 and applied to the first amplifying unit 60.

In addition, when the fluid flows through the supply pipe 94, the fluid is introduced along the through hole 26 provided at the center of the body of the first sensor unit 20, so that the tube connected to the inside of the through hole 26 ( Since the pressure is generated at 30, the fluid pressure sensor 24 detects the fluid pressure and applies it to the second amplification unit 62.

When the fluid flows through the supply pipe 94, the temperature sensor 56 embedded in the blind hole 54 of the second sensor unit 50 senses the temperature of the fluid and transmits the fluid to the third amplifying unit 64. Will be authorized.

The first amplifying unit 60, the second amplifying unit, and the third amplifying unit 64 amplify the applied signal into a signal having a predetermined magnitude and apply it to the A / D converter unit 70. The A / D converter 70 converts the analog signals applied from the first amplifier 60, the second amplifier 62, and the third amplifier 64 into digital signals, and converts them into digital signals. Is authorized. The controller 80 performs a comparative operation on the digital signal applied from the A / D converter unit 70 and displays the digital signal at a corresponding position of the display unit 84. The display unit 84 is provided outside the upper end of the electronic device 100 and simultaneously displays a flow rate value, a fluid pressure value, and a temperature value applied from the controller 80. Accordingly, the measurer can quickly and accurately control the amount of fluid supplied through the supply pipe 94 by simultaneously confirming the flow rate, fluid pressure, and temperature of the fluid flowing through the current supply pipe 94 displayed on the display unit 84. have.

In addition, the controller 80 is supplied from the external main controller 82 by applying a flow rate value, a fluid pressure value and a temperature value to the external main controller 82 for controlling the entire system for supplying the fluid from the fluid supply unit to the storage tank side. The supply amount of the fluid flowing through the pipe 94 may be controlled.

In addition, the present invention is the first sensor unit 20, the flow rate sensor 40 and the temperature sensor 56 is integrally integrated with the flow rate sensor 40 and the fluid pressure sensor 24, the second The sensor unit 50 is installed on both sides of the lining 91 constituting the electronic device 100, thereby measuring the flow rate, fluid pressure, and temperature of the fluid flowing through the supply pipe 94 to display the display unit of the electronic device 100 ( 84, the flow rate sensor 40, the fluid pressure sensor 24 and the temperature sensor 56 is sporadically located at any position of the lining 91 constituting the electronic device 100. By mounting, the flow rate, fluid pressure, and temperature of the fluid flowing through the supply pipe 94 may be measured and displayed on the display unit 84 of the electronic device 100 at the same time.

As can be seen from the above description, the present invention is connected to a supply pipe for supplying a fluid such as chemical liquid, cooling water and waste water so that the fluid is supplied to the storage tank side. One side of the supply pipe is provided with a first sensor unit in which a flow rate sensor and a fluid pressure sensor are integrated, and a second sensor unit in which a flow rate sensor and a temperature sensor are integrated at a position facing the first sensor unit. Is installed. Signals corresponding to the flow rate, fluid pressure, and temperature detected by the first and second sensor units are amplified by the amplifier and applied to the controller. The control unit compares the signals corresponding to the fluid pressure, flow rate and temperature applied through the amplification unit and simultaneously displays them on the display unit, so that the measurer can simultaneously check the pressure, flow rate and temperature of the fluid flowing through the supply pipe through the display unit. There is.

Claims (12)

A first sensor unit 20 having a flow rate sensor 40 for detecting the amount of fluid flowing through the supply pipe 94 and a fluid pressure sensor 24 for detecting the pressure of the fluid; A second sensor unit 50 having a flow rate sensor 40 for sensing the amount of fluid flowing through the supply pipe 94 and a temperature sensor 56 for sensing the temperature of the fluid; A first amplifier 60 for amplifying a signal applied from the flow rate sensor 40 of the first sensor unit 20 and the flow rate sensor 40 of the second sensor unit 50; A second amplifier 62 which amplifies a signal applied from the fluid pressure sensor 24 installed in the first sensor unit 20; A third amplifying unit 64 for amplifying a signal applied from the temperature sensor 56 installed in the second sensor unit 50; An A / D converter unit 70 for converting an analog signal applied from the first amplifier unit 60, the second amplifier unit 62, and the third amplifier unit 64 into a digital signal; And A control unit connected to the A / D converter unit 70 and performing comparison operation on the signal applied through the A / D converter unit 70 to display the display unit 84 provided on one side of the electronic device 100. 80) An electronic device which simultaneously measures and displays the flow rate, pressure and temperature of a fluid. The flow rate, pressure and temperature of the fluid of claim 1, wherein the first sensor unit 20 is mounted on a lining 91 of the electronic device 100 mounted on one side of the supply pipe 94. Electronic device that simultaneously measures and displays. The method of claim 1, wherein the second sensor unit 50 is mounted on the lining 91 of the electronic device 100 to face the first sensor unit 20 is installed on one side of the supply pipe 94. Electronic device for simultaneously measuring and displaying the flow rate, pressure and temperature of the fluid. The flow rate of the fluid of claim 1, wherein the magnetic field generating unit 96 is installed at both sides of the electronic device 100 so as to be perpendicular to the first sensor unit 20 and the second sensor unit 50. Electronic device that simultaneously measures and displays pressure and temperature. The flow rate sensor of the first sensor unit 20 and the second sensor unit 50 includes a magnetic field and a supply pipe 94 generated by the magnetic field generator 96. An electronic device for simultaneously measuring and displaying the flow rate, pressure and temperature of the fluid, characterized in that for detecting the flow rate by detecting the electromotive force generated by the interaction of the fluid flowing through. The electronic device of claim 1, wherein a through hole 26 is formed at the center of the body of the first sensor unit 20 to allow fluid to flow therein. . According to claim 1 and 6, the tube 30 is mounted on the rear of the through hole 26 formed in the first sensor unit 20 when the fluid flows into the through hole 26 by the tube 30 An electronic device for simultaneously measuring and displaying the flow rate, pressure and temperature of the fluid, characterized in that the fluid pressure sensor 24 detects the hydraulic pressure generated by the fluid pressure sensor. The flow rate of the fluid of claim 1, wherein a blind hole 54 is formed in the center of the body of the second sensor unit 50, the head part 52 of the second sensor unit 50 is closed. Electronic device that simultaneously measures and displays pressure and temperature. The method of claim 8, wherein the blind hole 54 provided in the second sensor unit 50 is provided with a temperature sensor 56, the electronic for simultaneously measuring and displaying the flow rate, pressure and temperature of the fluid Device. The fluid flow rate of claim 1, wherein the controller 80 is connected to an external main control device 82 so that a measurer can check the flow rate value, the hydraulic value, and the temperature value in the external main control device 82. , Electronics for measuring and displaying pressure and temperature simultaneously. According to claim 1, The display unit 84 provided on one side of the electronic device 100, the hydraulic value, flow rate value and temperature value detected from the first sensor unit 20 and the second sensor unit 50 at the same time An electronic device for simultaneously measuring and displaying the flow rate, pressure and temperature of the fluid, characterized in that displayed. According to claim 1, The display unit 84 provided on one side of the electronic device 100, the fluid pressure sensor, the flow rate sensor and installed in any position of the lining 91 constituting the electronic device 100 and An electronic device for simultaneously measuring and displaying the flow rate, pressure and temperature of the fluid, characterized in that the fluid pressure value, the flow rate value and the temperature value detected by the temperature sensor is displayed at the same time.