KR20080097010A - Liquid metal level indicator - Google Patents

Abstract

A liquid metal level indicator can provide more exact level value and improve convenience and accuracy of the level administration and observation through the percentage display function and alarming function using LED and buzzer. A liquid metal level indicator includes a level measuring section(1), and a level indicating section showing the liquid metal level at the remote site connected with the level measuring section through a circuit. The level indicating section comprises a self-power supply unit, a field indication and signal transmission unit, a level percentage display unit, and an alarming unit for informing reaching to the designated level.

Description

Liquid metal level indicators

1 is an overall configuration diagram of the present invention,

2 is a block diagram of a water level measuring unit according to the present invention;

3 is a block diagram of a water level sensor according to the present invention,

4 is an internal configuration and a circuit diagram of a water level indicating unit according to the present invention;

5 is an external (indicator) configuration diagram of the water level indicator according to the present invention.

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

(1): Water level measuring unit (2): Water level indicating unit

(112): Water level measuring vessel (113): Sensor connector

(114) Level sensor (115): Signal cable

(116, 117, 210, 217, 218): Connector 118: Common terminal

(119): fluid transfer pipe 120: heater

(121): insulating gasket (123): sensor fixture

125: connection part 124: insulation cap

(212): Control panel / computer cable and connector (213): Common terminal connector

214: built-in power supply 215: common terminal

(216): case

(219): Designated water level lamp and alarm signal line (220): Designated water level lamp

(221): Designated water level alarm speaker (222): Water level observation window

(2221): LED

The present invention relates to a liquid level gauge for liquid metal, and in detail, the power supply is built-in, the field indication and signal transmission is possible, and the part type liquid metal level indicator having an alarm function when reaching the specified level by the LED and the percentage level display function It is about.

In general, the liquid metal level measurement is composed of a circuit that allows current to flow between the level sensor of a conductive metal that does not react with the liquid metal and the common terminal of the vessel, and checks whether the current flows between the two terminals according to the level. The level can be determined by whether the fluid has reached the sensor height.

That is, if there is no fluid in the container, the current is disconnected and no signal is generated (OFF state). The terminal is energized by the conduction of fluid between the sensor and the sensor. At this time, the method of checking the water level through the generated current (ON state) is mainly used.

However, liquid metals have a disadvantage that they are difficult to use a general level gauge or to directly measure the level and visualize the quantified level value due to the property of solidifying at room temperature or easily oxidized by combining with oxygen, and the price is expensive.

Therefore, it is necessary to develop a water meter capable of quantitative measurement and quantification.

An object of the present invention for solving the problems as described above is to provide a water level clock for the component-type liquid metal that is easy to move and carry, reinstall, easy to manufacture at a low cost reflecting the operation or site conditions of the device.

Another object of the present invention is to selectively use DC (internal power) or AC (external power) according to the environment, such as installation and operating conditions, in the case of on-site instructions liquid metal of the integrated structure to use a built-in power supply without external power To provide a water level watch.

Still another object of the present invention is to provide on-site indication of the liquid metal level, as well as signal transmission to the control panel or computer, and has a percentage level indication function by LED, and an alarm function by LED and buzzer when reaching the specified level, The present invention provides a water level indicator for a liquid component metal that can be applied to a free and conductive fluid.

Liquid level indicator for a liquid metal of the present invention to achieve the object as described above and to perform the problem for eliminating the conventional defects, the device for measuring the level of the liquid metal, the water level measuring unit; A level indicator indicating the liquid metal level of a remote site connected to the level measurement unit, wherein the level indicator includes its own power supply means, a site indication and a signal transmission means, a level indication means by a percentage, and a specified level is reached. Including an alarm means, characterized in that the integral part is configured.

The water level measuring unit is a water level measuring vessel formed in the upper and lower fluid movement pipe inflow and outflow of the liquid metal; A plurality of sensor connectors installed at regular intervals in the vertical direction in the water level measuring container; A level measuring sensor for measuring the level of the liquid metal inserted into and respectively connected to the sensor connector; Connectors each connected to a water level sensor; A signal cable connected to each connector; A connector connected to a plurality of signal cables for transmitting signals from the level sensor; A heater installed outside the level measuring container to prevent solidification of the liquid metal; One side is connected to the water level measuring container) and the other side is configured to include a common terminal connected to a common terminal connector and receiving power.

The sensor connector is configured to be coupled through the water level measurement sensor, the sensor connector is coupled to the water level measuring vessel by means of welding, etc., and a thread is formed therein. It is configured to be integrated by means such as welding and the like, and the connection part is formed on one side end penetrating the sensor fixture, and when the coupling between the sensor connector and the water level measurement sensor, an insulating gasket is inserted therebetween, and the water level measurement sensor is connected. The side is characterized in that it is configured to be insulated by covering the insulating cap.

The water level indicating unit includes a case forming an appearance; A water level observation window made up of a plurality of LEDs connected in a circuit so as to flash in response to a signal from a water level measurement sensor installed in the case; A designated water level lamp circuit-connected to light up when the liquid metal reaches a specified water level; A specified level alarm speaker connected to a circuit so that an alarm sounds when the liquid metal reaches a specified level; A specified level lamp and a specified level alarm speaker and one side of which are circuit-connected, and the other side of which is a predetermined level LED signal line and a circuit of a predetermined level lamp and alarm signal line; A connector installed at one side of the case connected to an individual LED constituting the water level observation window in one path, and connected to an external control panel / computer cable and a connector at a terminal of another one path, and to a connector at another terminal; A common terminal connected to the plurality of LEDs at one side and the other side connected to a built-in power supply unit; A connector coupled to a connector of a water level measurement unit coupled to a terminal of a connector installed at one side of the case, and a connector to which a plurality of signal cables connected to the connector are coupled; A control panel / computer cable and a connector coupled to the other terminal of the connector installed at one side of the case; A common terminal connector installed at one side of the case and connected to the common terminal; Characterized in that the built-in power supply unit connected to the common terminal and the common terminal connector.

The water level indicating unit is characterized in that the DC power supply means and the external AC power supply means is configured to be selectively used through the power supply.

The configuration of the present invention as described above is a component type water level clock integrating components such as a power supply unit and a percentage level indicator LED, an electric circuit, a water level measurement window and a cable connector, a specified level alarm unit in an insulating case (PVC, etc.). Particularly, in the case of on-site instruction, it is possible to check the water level value by connecting with the water level measurement sensor by the built-in DC power source (battery) without a separate power supply.

In addition, it is possible to display the water level from 10 to 100% by LED, and it is easy to check the water level at a long distance by the buzzer alarm when the specified water level is reached, and it is free to set the specified water level, and to the control panel or the computer as well as the field indication of the water level signal. It has a structure that can transmit a signal.

In the present invention, it is possible to check the water level by a percentage through the observation window of the water level indicator, and it is possible to selectively use DC and AC according to the installation environment and operating conditions. In other words, if you use the internal DC power supply (battery), you don't need the power cable, so it has excellent accessibility to the site, so you can use it for on-site instruction. And even when using the external power supply, it is easy to install and dismantle.

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

1 is an overall configuration diagram of the present invention, Figure 2 is a configuration diagram of the water level measurement unit according to the present invention, Figure 3 is a configuration diagram of a water level measurement sensor according to the present invention, Figure 4 is a water level indicator according to the present invention It is an internal structure and a circuit diagram, and FIG. 5 shows an external (indicator) configuration diagram according to the present invention.

As shown in FIG. 1, the present invention is composed of a plurality of sensors, the water level measuring unit (1) for measuring the liquid metal level; And a water level indicating unit (2) indicating a liquid metal level of a remote place connected to the water level measuring unit.

More specifically, the water level measuring unit 1 will be described in detail with reference to FIGS. 2 and 3. The fluid level pipe 112 having the liquid metal flowing in and out of the liquid level pipes 119 formed on the upper and lower sides thereof; A plurality of sensor connectors 113 installed at regular intervals in the vertical direction on the water level measuring container 112; A water level measuring sensor 114 for measuring the level of the liquid metal inserted into and respectively connected to the sensor connector 113; Connectors 116 connected to the level sensor 114, respectively; A signal cable 115 connected to each connector; A connector 117 connected to a plurality of signal cables 115 for transmitting signals from the level sensor; A heater 120 installed outside the level measuring container 112 to prevent solidification of the liquid metal; One side is connected to the water level measuring container 112 and the other side is made of a common terminal 118 connected to the common terminal connector 213 to receive power.

In addition, when explaining a specific coupling configuration between the sensor connector 113 and the water level measuring sensor 114, the sensor connector 113 is firmly coupled to the water level measuring container 112 by welding or the like, and has a thread formed therein. Doing. The water level measurement sensor 114 is coupled to the sensor connector 113 of such a shape, the water level measurement sensor 114 is integrated with the sensor connector 123, one end of the bolt shape is formed by welding or the like and coupled with the sensor connector Done. In addition, the water level measurement sensor 114 penetrates through the sensor fixture, and a connection part 125 is formed at one end thereof to connect with the connector 116.

When the coupling between the sensor connector 113 and the water level measurement sensor 114, an insulating gasket 121 is inserted therebetween to prevent energization.

In addition, the insulating cap 124 is covered on the connection portion 125 side of the water level measurement sensor 114 to prevent the energization.

Figure 4 is an internal configuration and circuit diagram of the water level indicator according to the present invention, Figure 5 shows an external (directive) configuration diagram of the water level indicator according to the present invention, the water level indicator 2 as shown, A case 216 which comprises; A water level observation window 222 made up of a plurality of LEDs 2221 circuitry connected to blink in accordance with a signal from the water level sensor 114 installed in the case 216; A designated water level lamp 220 connected to the circuit to be turned on when the liquid metal reaches the designated water level; A designated water level alarm speaker 221 circuit-connected to sound an alarm when the liquid metal reaches a predetermined water level; A designated water level lamp 220 and a designated water level alarm speaker 221 and one side of the circuit level connection, and the other side of the specified level water level LED 2221 signal line to be connected to the specified level level lamp and alarm signal line 219; It is connected to the individual LED 2221 constituting the water level observation window 222 in one path, the terminal of another one path is connected to the external control panel / computer cable and connector 212, the connector 217 at the other terminal A connector 218 installed at one side of the case so as to be coupled to the case; A common terminal 215 connected to the plurality of LEDs 2221 on one side and the other side connected to the built-in power supply unit 214; The connector 210 connected to the connector 117 of the water level measuring unit 1 coupled to the terminal of the connector 218 installed on one side of the case and a plurality of signal cables 211 connected to the connector 210 are coupled. A connector 217; A control panel / computer cable and connector 212 coupled with the other terminal of the connector 218 installed at one side of the case; A common terminal connector 213 installed at one side of the case 216 and connected to the common terminal connector 118; The built-in power supply unit 214 is connected to the common terminal 215 and the common terminal connector 213.

Looking at the operation of the water level clock of the present invention configured as described above.

The current generated in the water level measuring unit 1 is transmitted to the water level indicating unit 2 through the signal cable 115, and the level-level LEDs 2221 operate according to the water level displacement so that the water level observation window 222 displays the percentage level. do. In addition, when the fluid reaches the designated level, the alarm (LED, buzzer) operates through the designated level lamp 220 and the designated level speaker 221, and it is easy to observe and manage the designated level.

In addition, a current generated between the level sensor 114 and the level measuring container 112 by the conductive fluid is transmitted to the level indicator 2 through the signal cable 115. The LED 2221 is activated by the transmitted current to indicate the water level and is transmitted to the control panel / computer (not shown) through the control panel / computer cable and the connector 212, and when the specified level is reached, an alarm is activated.

The internal structure of the water level indicator is shown in FIG. 4, wherein the case 216 has LEDs 2221 and LEDs 1-10 and a power supply unit 214, and a plurality of LEDs 2221 are provided with 10 water levels for each level. The colors are arranged for easy separation. The signal cables (10) on the side of the-(+) terminal of the LED 2221 are collected and commonly connected to the common terminal 215, and connected to the-(+) pole of the power supply unit. The + (−) pole of the power supply unit 214 is connected to the common terminal connector 213 and the common terminal connector 213 is connected to the common terminal connector 118 of the water level measuring container (FIG. 2).

In the connector 218, the signal lines of the LEDs (10) and the counter side of the control panel / computer cable (212) are double-wired so that the signals of the water level measurement sensor and the water level indication LED's control panel are communicated with each other.

The designated level lamp / alarm signal line connector 219 is connected to the LED terminal of the required designated level and can be freely positioned within 10 to 100% according to the designated level.

The outside of the water level indicator is shown in Figure 5, the front of the case 216 was installed a translucent water level observation window 222 indicating the percentage for each level so that the operation of the LED can be easily determined. The water level observation window 222 has a plurality of LEDs 2221 disposed therein so that they can be easily observed even at a long distance, and a transparent plate indicating a percentage and attaching a percentage is attached thereto, and a name plate 223 is attached to the top.

The built-in power supply unit 214 is a battery can be easily replaced according to the life of the battery, the lamp used is also easy to replace.

Since the current consumption of the LED 2221 is approximately several mA to 50 mA, the battery and the lamp can be replaced, selected, or additionally installed within the rated capacity to meet each other.

In the case of using an external power source, the battery connected to the power supply unit 214 may be removed, and 110V / 220VAC power may be directly supplied to the power supply unit 214. That is, when AC 110V or 220V is applied through AC In of FIG. 4, AC is input to the power supply unit 214, and the input AC is converted into DC in the power supply, and DC power is applied to the circuit.

The power supply unit is a structure in which two elements, a DC power supply means consisting of a battery compartment into which a DC battery can be inserted and an external AC power supply means for converting AC, are embedded. Insert the battery into the battery, and when using an external power supply (AC), supply AC power (110V or 220V) to the "AC In" side instead of the battery. Will be used.

The water level clock of the present invention operates as follows.

When the power of the water level indicator 2 is turned on, a current flows between the water level measurement sensor 114 and the common terminal 118. When the fluid moves to the water level measuring vessel 112 through the fluid movement pipe 119 installed in the storage tank in the state that the current is energized and the water level rises, the contact between the common terminal 118 and the fluid in the conductor is made and An electric current flows between the fluids.

When the level of the fluid that is energized increases, the position of the first sensor of the level sensor 114 is reached. At this time, a current flows between the common terminal 118 and the first sensor by the fluid. That is, the conductor fluid is energized between the common terminal, the fluid, and the water level sensor. At this time, a current passes through the LED 1 of the LED 2221 of the water level indicator 2 connected to the first sensor, and the 10% window of the water level observation window 222 is activated. When the water level reaches the position of the second sensor, the 20% window of the water level observation window 222 is activated, and the LED and the water level observation window work in conjunction with the change of the water level (ON / OFF).

The designated water level lamp 220 and the designated water level alarm 221 outside the water level indicating unit are operated at the same time when the fluid reaches the specified water level, so that it is easy to observe and manage the limit water level according to the operation.

Designate the designated level by connecting the LED terminal of the required level and the designated level lamp / alarm connector, and it can be moved and installed according to the operating conditions and the specified level. In other words, if you want to activate the alarm when the level is 100%, connect 100% LED terminal and the designated level lamp / alarm connector to operate when the level is 100%, and when it is connected to 90% LED when the water level is 90% Works.

In addition, if you want to send a signal to the control panel or computer, the control panel / computer cable 212 can be easily connected by connecting the terminal of the control panel or computer.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention applies a present level indicator to a conventional method of measuring a level by a current signal by flowing a current between a level sensor and a common terminal of a container in measuring a level of a conductive fluid. And increase the convenience and accuracy in the management and monitoring of the water level through the percentage level indication function and alarm (LED and buzzer).

Percentage levels can be displayed using LEDs and can be used for on-site indication as well as signal transmission to the control panel or computer.

As a small part type water level watch that integrates power and components, it is easy to move, carry, reinstall, and dismantle, it is possible to indicate the level of water level without external power, and it is possible to selectively use DC and AC.

Its simple structure makes it almost permanently available because there is almost no breakdown, and it is easy to change the designated water level terminal.

Simultaneous alarm function by LED and buzzer when the specified level is reached, which is a useful invention that has the advantage of a part type water level clock that can be applied to liquid metal and conductive fluid that is easy to observe and manage the water level at a long distance. It is to be an invention.

Claims (5)

In the device for measuring the level of liquid metal, A water level measuring unit 1; A water level indicator (2) indicating a liquid metal level of a remote place connected to the water level measurement unit, wherein the water level indicating unit has its own power supply means, field indication and signal transmission means, water level display means by percentage, and designation. Liquid level gauge for liquid metal, characterized in that the unit is configured in one piece including an alarm means when the water level is reached. The method of claim 1, The water level measuring unit 1 includes a water level measuring container 112 having a fluid movement pipe 119 through which a liquid metal flows in and out; A plurality of sensor connectors 113 installed at regular intervals in the vertical direction on the water level measuring container 112; A water level measuring sensor 114 for measuring the level of the liquid metal inserted into and respectively connected to the sensor connector 113; Connectors 116 connected to the level sensor 114, respectively; A signal cable 115 connected to each connector; A connector 117 connected to a plurality of signal cables 115 for transmitting signals from the level sensor; A heater 120 installed outside the level measuring container 112 to prevent solidification of the liquid metal; One side is connected to the water level measuring container 112, and the other side is connected to the common terminal connector 213, the liquid level gauge for liquid metal, characterized in that it comprises a common terminal 118 to receive power. The method of claim 2, The water level measuring sensor 114 is inserted into the sensor connector 113 is inserted through the coupling, Sensor connector 113 is coupled to the water level measuring vessel 112 by welding or the like, the thread is formed therein, The water level measuring sensor 114 is configured such that one side end is integrated with a sensor fixing tool 123 having a bolt shape by welding or the like, and a connection part 125 is formed at one side end passing through the sensor fixing tool. Insulation gasket 121 is inserted between the sensor connector 113 and the water level measurement sensor 114, and the insulation cap 124 is covered with an insulating cap 124 on the connection portion 125 of the water level measurement sensor 114. Level gauge for liquid metal, characterized in that configured to combine in a state. The method of claim 1, The water level indicating section 2, A case 216 forming an appearance; A water level observation window 222 made up of a plurality of LEDs 2221 circuitry connected to blink in accordance with a signal from the water level sensor 114 installed in the case 216; A designated water level lamp 220 connected to the circuit to be turned on when the liquid metal reaches the designated water level; A designated water level alarm speaker 221 circuit-connected to sound an alarm when the liquid metal reaches a predetermined water level; A designated water level lamp 220 and a designated water level alarm speaker 221 and one side of the circuit level connection, and the other side of the specified level water level LED 2221 signal line to be connected to the specified level level lamp and alarm signal line 219; It is connected to the individual LED 2221 constituting the water level observation window 222 in one path, the terminal of another one path is connected to the external control panel / computer cable and connector 212, the connector 217 at the other terminal A connector 218 installed at one side of the case so as to be coupled to the case; A common terminal 215 connected to the plurality of LEDs 2221 on one side and the other side connected to the built-in power supply unit 214; The connector 210 connected to the connector 117 of the water level measuring unit 1 coupled to the terminal of the connector 218 installed on one side of the case and the plurality of signal cables 211 connected to the connector 210 are coupled. A connector 217; A control panel / computer cable and connector 212 coupled with the other terminal of the connector 218 installed at one side of the case; A common terminal connector 213 installed at one side of the case 216 and connected to the common terminal 118; Liquid level watch for a liquid metal, characterized in that consisting of a built-in power supply unit 214 connected to the common terminal 215 and the common terminal connector (213). The method according to claim 1 or 4, The water level indicator is a liquid level indicator for a liquid metal, characterized in that configured to selectively use a DC power supply means and an external AC power supply means through the power supply.

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