KR20100056098A - Alarming device for leaking pipe - Google Patents

Alarming device for leaking pipe Download PDF

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Publication number
KR20100056098A
KR20100056098A KR1020080115085A KR20080115085A KR20100056098A KR 20100056098 A KR20100056098 A KR 20100056098A KR 1020080115085 A KR1020080115085 A KR 1020080115085A KR 20080115085 A KR20080115085 A KR 20080115085A KR 20100056098 A KR20100056098 A KR 20100056098A
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KR
South Korea
Prior art keywords
pipe
sensing unit
electrically connected
box
unit
Prior art date
Application number
KR1020080115085A
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Korean (ko)
Inventor
김영오
Original Assignee
한양이엔지 주식회사
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Publication date
Application filed by 한양이엔지 주식회사 filed Critical 한양이엔지 주식회사
Priority to KR1020080115085A priority Critical patent/KR20100056098A/en
Publication of KR20100056098A publication Critical patent/KR20100056098A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The present invention relates to an alarm device for leaking pipes, and a technical problem to be solved is to provide an alarm device for leaking pipes to accurately notify the operator of the leak point when the pipe leaks to take a quick action.

To this end, the liquid chemical pipes flowing therein; A sensing unit which is installed at an outer portion of the pipe and detects chemical chemicals leaked to the outside of the pipe and outputs an electrical signal; And a warning unit electrically connected to the sensing unit and configured to receive a signal output from the sensing unit and visually display whether the pipe leaks.

Description

ALARMING DEVICE FOR LEAKING PIPE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm device for leaky piping, and more particularly to an alarm device for leaky piping capable of quickly determining a failure location when leakage of chemical chemicals flowing through a pipe.

Today's manufacturing industry is indispensable in establishing automated facility plants for mass production in all sectors. These manufacturing companies have established a number of facilities and their lines in factories to produce goods. In particular, the semiconductor industry has an expensive process apparatus for each semiconductor process, and each process apparatus is provided with pipes for supplying chemicals required for the process.

3 illustrates an example of pipes and branching of pipes used in a semiconductor process.

Since these pipes are connected from the main tank to each process unit, they are very long and have many branches. In addition, each process requires different chemicals for each process, resulting in more piping.

For this reason, each pipe is tagged according to the chemical chemicals supplied, the operator will look at the tag (Tag) to identify which chemical chemical piping.

On the other hand, the facility management device connected to each pipe when the chemical chemical leakage in the pipe inside the central monitoring ROM computer to inform the operator of the leak location visually to tell whether the pipe abnormality. When the pipe leaks, the process equipment connected to the pipe stops. Thus, the operator must quickly find and repair the leaked piping, but all process equipment connected to the piping can be restarted.

In this case, since most of the leak points correspond to branch points of the pipe, the operator finds a nearby branch point by using the tag of the pipe and the position information indicated by the central monitoring. At this time, most of the pipes are formed along the wall or ceiling in the factory.

However, when leaking the pipe, the operator has to find the leak location in the field after checking the part displayed on the central monitoring computer, so it is difficult to find the exact leak point. In addition, when the pipe is formed on the ceiling of the factory, the operator has to move the ladder several places to find, there is a problem that the pipe repair time is delayed.

In addition, if a mistake in the pipe tag is reversed due to branching of the pipe, workers should check the pipe directly to find the leaked part of the pipe, which may cause a problem of longer pipe repair time. do.

The technical problem of the present invention is to provide a leaking pipe alarm device that can notify the operator accurately the leak point when the pipe leaks to take a quick action.

Leakage pipe alarm device of the present invention for achieving the above technical problem is a pipe flowing liquid chemicals therein; A sensing unit which is installed at an outer portion of the pipe and detects chemical chemicals leaked to the outside of the pipe and outputs an electrical signal; And a warning unit electrically connected to the sensing unit and receiving a signal output from the sensing unit to visually display whether the pipe leaks.

In this case, the pipe may be formed of a T-shaped pipe. In this case, the T-shaped pipe may be formed in a fitting type or a valve type. In addition, the sensing unit may be installed at the lower portion of the T-shaped pipe. Here, the sensing unit may be formed as a leak sensor, and may be installed around the seam of the pipe.

The tube may further include a box having a through hole through which the pipe passes. The sensing unit may be positioned between the pipe and the box. In this case, the sensing unit may be installed on the lower inner surface of the box. In addition, the warning unit may be formed in combination with the box so that a portion of the warning is exposed to the outside of the box.

On the other hand, the warning unit is electrically connected to the sensing unit, a signal detector for detecting the signal detected by the sensing unit for outputting as an electrical signal; And a display unit electrically connected to the signal detection unit and visually informing the signal output from the signal detection unit.

In this case, the signal detection unit is a contact point electrically connected to the positive terminal of the DC power supply, a b contact electrically connected to the sensing unit, and one end is electrically connected to the positive terminal of the DC power supply and the other end is electrically connected to the sensing unit. A relay including a magnetic coil connected to the contact point when the signal is output from the sensing unit; And a diode in which an anode is electrically connected to the sensing unit, and a cathode is electrically connected to an anode end of a DC power source. It may be formed to include.

The signal detector may further include a regulator having an input terminal electrically connected to the contact a and an output terminal electrically connected to the display unit; It may be formed to include more.

On the other hand, the display unit includes a light emitting diode electrically connected to the signal detection unit; A transistor electrically connected to the light emitting diode to control a current flow of the light emitting diode; And an oscillator electrically connected to the transistor and inputting a pulse signal to the transistor to periodically turn on the transistor. It may be formed to include.

The display unit may further include a current buffering resistor electrically connected between the signal detector and the light emitting diode.

The display unit may further include: a first base resistor electrically connected between the transistor and the oscillator; And a second base resistor electrically connected between the transistor and the oscillator and connected in parallel with the first base resistor, the first capacitor electrically connected between the oscillator and the ground terminal. And; And a second capacitor electrically connected between the oscillator and the ground terminal and electrically connected to the second base resistor.

The alarm device for leakage pipe of the present invention, when the worker leaks chemicals in the pipe, the operator can visually check the leakage site in the field, there is an effect that can quickly repair the leakage site.

The above effects have been briefly described so as not to obscure the subject matter of the present invention, and will be described in more detail in the following detailed description.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, the same reference numerals are used for the same components. In addition, duplicate descriptions of the same or similar components will not be possible.

1 is a cross-sectional view of the alarm device for leakage piping according to an embodiment of the present invention.

As shown in FIG. 1, the alarm device 100 for leaking piping according to an embodiment of the present invention includes a pipe 110, a sensing unit 120, and a warning unit 130. In addition, the alarm device for leakage piping according to an embodiment of the present invention is further formed by including a box 140.

The pipe 110 is a chemical liquid chemical flows inside. In the present embodiment, the pipe 110 is formed of a T-shaped pipe. Although the T-shaped pipe shown in the present embodiment is a screw coupling type, the T-shaped pipe may be implemented in a form in which a seam is formed, such as a joint insertion type or a joint coupling type using a peninsula or a fastening chain. Further, the T-shaped pipe may be formed in a fitting type or a valve type. Meanwhile, in the present embodiment, the chemical agent may be acidic, such as sulfuric acid and nitric acid.

The sensing unit 120 is installed at an outer portion of the pipe 110. In addition, the sensing unit 120 detects chemical chemicals leaked to the outside of the pipe 110 and outputs an electrical signal. In the present embodiment, the sensing unit 120 is preferably formed of a leak sensor (leak sensor) for detecting the potential by the contact of the chemicals in order to detect the chemicals accurately. In addition, the sensing unit 120 is preferably located in the lower portion of the seam 111 of the pipe 110, the chemicals easily leaked from the pipe 110. That is, the sensing unit 120 is preferably installed in the lower portion of the T-shaped pipe.

The warning unit 130 is formed to include a signal detector 131 and a display unit 132.

The signal detector 131 is electrically connected to the sensing unit 120 and detects a signal detected by the sensing unit 120 and outputs an electrical signal. In this case, it is preferable that the electrical signal is output in a state where the power is amplified to sufficiently supply the power required by the display unit 132.

The display unit 132 is electrically connected to the signal detector 131. In addition, the display unit 132 receives a signal output from the signal detector 131 and serves to visually inform the operator. The display unit 132 may be configured of a lamp or a light emitting diode that emits light so that the operator can be visually seen.

The box 140 has a plurality of through holes 141 through which the pipe 110 passes. In addition, the box 140 is formed with a warning unit coupling hole 142 for coupling with the warning unit 130. The warning unit coupling hole 142 is preferably inserted into the display unit 132, which is a part of the warning unit 130 to be exposed to the outside of the box 140 so that the operator can visually confirm. In this case, the sensing unit 120 is preferably located between the bottom of the pipe 110 and the box 140 of the chemical chemicals, which is likely to leak chemical chemicals for the rapid detection of chemical chemicals. In addition, the sensing unit 120 is preferably located on the lower inner surface of the box 140. The lower inner surface of the box 140 is because the chemical chemicals can be well accumulated when the chemical chemicals spilled to facilitate the detection of chemicals. Here, the box 140 may be formed of a material such as an injection molding or a metal resistant to corrosion.

Hereinafter will be described the operation and effect of the driving of the leakage warning device 100 for piping according to an embodiment of the present invention.

First, the sensing unit 120 detects the leakage of chemical chemicals at the seam 111 of the pipe 110. In this case, the sensing unit 120 outputs an electrical signal to the warning unit 130. Thereafter, the warning unit 130 turns on the display unit exposed to the outside of the box 140 in order to visually inform the operator. Therefore, the operator can detect the light, open the box 140 of the lighted portion can quickly repair the leakage of the pipe (110).

On the other hand, the above-described leakage pipe warning device 100 may be installed for each seam of the T-shaped pipe. In this case, the main system for leak detection, which is not shown in the drawing, may be electrically connected to the sensing unit 120 to notify a worker waiting in the factory whether or not a failure occurs. The worker who has received the failure report can move to the corresponding sector to see the box 140 that is lighted and quickly repair the leaked pipe 110. In particular, since the leakage pipe alarm device 100 visually determines the failure by the light, even if the problem that the tag (Tag) attached to each pipe 110 is reversed due to the branching operation of the pipe 110 occurs fault location It is possible to determine exactly.

2 is a block diagram of a leaking pipe warning device according to another embodiment of the present invention.

As shown in FIG. 2, the alarm device 200 for leaking piping according to another embodiment of the present invention includes a pipe 110, a sensing unit 120, and a warning unit 230. In the present embodiment, since the pipe 110 and the sensing unit 120 have been described with the same reference numerals, the description thereof will not be repeated, and the warning unit 230 will be mainly described.

The warning unit 230 includes a signal detector 231 and a display unit 232.

The signal detector 231 includes a relay 231a, a diode 231b, and a regulator 231c.

The relay 231a includes a contact 231a1, a b contact 231a2, and a magnetic coil 231a3. Here, the relay 231a may receive a power of approximately 24V from the outside.

The a contact 231a1 is electrically connected to the sensing unit 120. In addition, the contact a (231a1) is electrically connected to the positive terminal (241) of the DC power supply. Also, the contact a 231a1 is electrically connected to one end 231a4 of the magnetic coil 231a3.

The b contact 231a2 is electrically connected to the sensing unit 120. In addition, the b contact 231a2 is electrically connected to the other end 231a5 of the magnetic coil 231a3.

One end of the magnetic coil 231a3 is electrically connected to the anode terminal 241 of the DC power source. In addition, the other end 231a5 of the magnetic coil 231a3 is electrically connected to the sensing unit 120. Since the magnetic coil 231a3 is electromagnetized when the sensing unit 120 is electrically connected to the ground terminal 242, the magnetic coil 231a3 turns off the contact b 231a2 and conducts the contact a 231a1. That is, the magnetic coil 231a3 conducts the contact a 231a1 when the sensor 120 outputs the signal, and conducts the contact b 231a2 when the sensor 120 does not output the signal.

In the diode 231b, an anode 231b2 is electrically connected to the sensing unit 120, and a cathode 231b1 is electrically connected to an anode terminal 241 of a DC power source. In other words, the diode 231b is electrically connected to the a contact 231a1 in the sensing unit 120 in the forward direction. Therefore, the diode 231b prevents current from flowing from the anode terminal 241 of the DC power supply to the sensing unit 120, thereby preventing damage to the relay 231a and the sensing unit 120.

The regulator 231c has an input terminal 231c1 electrically connected to a contact 231a1 and an output terminal 231c2 electrically connected to an oscillator 232c of the display unit 232. In addition, the input terminal 231c1 of the regulator 231c is electrically connected to the light emitting diode 232a. That is, the regulator 231c serves to adjust the driving voltage so that the oscillator 232c can be driven when the contact a 231a1 is turned on.

The display unit 232 includes a light emitting diode 232a, a transistor 232b, and an oscillator 232c. In addition, the display unit 232 further includes a current buffering resistor 232a1. The display unit 232 may further include a first base resistor 232c1, a second base resistor 232c2, a first capacitor 232c3, and a second capacitor 232c4.

The anode 231a2 of the light emitting diode 232a is electrically connected to the regulator input terminal 231c1 of the signal detector 231. In addition, in the light emitting diode 232a, the cathode 231a1 is electrically connected to the transistor 232b. The light emitting diode 232a is electrically connected to the anode terminal 241 of the DC voltage when the contact a of the contact point 231a1 is conducted. The light emitting diode 232a has an advantage that the brightness of the light emitting diode 232a can be easily seen by an operator because it has better brightness than a lamp.

In the transistor 232b, the collector C is electrically connected to the cathode 231a2 of the light emitting diode 232a. In addition, the emitter E of the transistor 232b is electrically connected to the ground terminal 242. In addition, the base of the transistor 232b is electrically connected to the oscillator 232c. When a signal is input to the base B, the transistor 232b is turned on to allow current to flow from the light emitting diode 232a to the ground terminal 242. Accordingly, the light emitting diode 232a repeats the turn on or turn off operation according to whether the base B of the transistor 232b has a signal input or not.

The oscillator 232c is electrically connected to the base B of the transistor 232b. In addition, the oscillator 232c inputs a pulse signal to the base B of the transistor 232b and periodically turns on the transistor 232b. In this case, the first base resistor 232c1, the second base resistor 232c2, the first capacitor 232c3, and the second capacitor 232c4 are electrically connected to the oscillator 232c.

Here, the first base resistor 232c1 is electrically connected to the base B of the transistor 232b to adjust the impedance between the transistor 232b and the oscillator 232c. The second base resistor 232c2 is electrically connected between the first base resistor 232c1 and the oscillator 232c to adjust the pulse width generated by the oscillator 232c. The first capacitor 232c3 is electrically connected between the ground terminal 242 and the oscillator 232c. The second capacitor 232c4 is electrically connected between the oscillator 232c and the ground terminal 242. In addition, the second capacitor 232c4 is electrically connected to the second base resistor 232c2. The first condenser 232c3 and the second condenser 232c4 serve to adjust the pulse width of the pulse signal by adjusting the ripple generated in the oscillator 232c.

That is, the oscillator 232c inputs a pulse signal to the transistor 232b so that the light emitting diode 232a flickers, and whether the pipe 110 leaks due to continuous blinking of the light emitting diode 232a. To be visually conveyed to

The current buffering resistor 232a1 is electrically connected between the signal detector 231 and the light emitting diode 232a. The current buffering resistor 232a1 protects the light emitting diode 232a by buffering a current flowing to the light emitting diode 232a when the relay 231a generates an instantaneous impulse voltage.

Hereinafter will be described the operation and effect of the operation of the alarm device for leakage pipe 200 according to another embodiment of the present invention.

First, the sensing unit 120 detects this when leaking chemicals in the pipe 110. In this case, the sensing unit 120 outputs an electrical signal to the warning unit 130. Then, the relay 231a of the signal detector 231 changes the conduction state from the b contact 231a2 to the a contact 231a1. At this time, the anode 231a2 of the light emitting diode 232a is supplied with a positive pole power source of a DC power source electrically connected to the contact a 231a1. At the same time, the regulator 231c supplies power to the oscillator 232c to input a pulse signal from the oscillator 232c to the base B of the transistor 232b. Accordingly, the transistor 232b is turned on to flow a current from the collector to the emitter and the light emitting diode 232a emits light. Thereafter, the operator determines whether the pipe 110 leaks by looking at the light of the light emitting diode 232a, and repairs the leaked part. Even if the tag of the pipe 110 is reversed, the operator can only check the light of the light emitting diode 232a to determine whether the pipe 110 is leaked, and thus repair the leaked part. You can do it quickly.

1 is a cross-sectional view of the alarm device for leakage piping according to an embodiment of the present invention.

Figure 2 is a block diagram of a leak pipe alarm device according to another embodiment of the present invention.

Figure 3 is a schematic diagram showing a schematic diagram of the pipes used in the conventional semiconductor process, and the branch quantum of the pipes in a photograph.

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

100, 200; Leakage Alarm System

110; Pipe 120; Sensing Part

130, 230; Warning sections 131, 231; Detector

132, 232; Display section 140; box

231a; Relay 231b; diode

231c; Regulator 231a1; acontact

231a2 b contact 231a3; Magnetic coil

231b; Diode 231b 232a; Light emitting diode

232b; Transistor 232c; oscillator

232a1; Current buffering resistor

Claims (3)

Pipes through which chemical chemicals flow; A sensing unit which is installed at an outer portion of the pipe and detects chemical chemicals leaked to the outside of the pipe and outputs an electrical signal; And And a warning unit electrically connected to the sensing unit and configured to receive a signal output from the sensing unit and visually display whether the pipe is leaked. 2. The method of claim 1, It is formed further comprising; a box formed with a through hole through which the pipe passes; The sensing unit is located between the pipe and the box, The sensing unit is an alarm for leaking piping, characterized in that installed around the seam of the pipe. The method of claim 1, It is formed further comprising; a box formed with a through hole through which the pipe passes; The sensing unit is installed on the lower inner side of the box, The warning unit is a leakage pipe alarm device, characterized in that formed in combination with the box so that a portion is exposed to the outside of the box.
KR1020080115085A 2008-11-19 2008-11-19 Alarming device for leaking pipe KR20100056098A (en)

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KR1020080115085A KR20100056098A (en) 2008-11-19 2008-11-19 Alarming device for leaking pipe

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101694658B1 (en) * 2016-08-10 2017-01-09 이성운 Hydrochloric acid liquid spill detection system
KR101694659B1 (en) * 2016-08-10 2017-01-09 이성운 Sulfuric acid liquid spill detection system
KR101701679B1 (en) * 2016-08-10 2017-02-01 이성운 Sodium hydroxide liquid spill detection system
KR20200125362A (en) * 2019-04-25 2020-11-04 울산대학교 산학협력단 Device and method for nondestructive inspection using acoustic signature

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101694658B1 (en) * 2016-08-10 2017-01-09 이성운 Hydrochloric acid liquid spill detection system
KR101694659B1 (en) * 2016-08-10 2017-01-09 이성운 Sulfuric acid liquid spill detection system
KR101701679B1 (en) * 2016-08-10 2017-02-01 이성운 Sodium hydroxide liquid spill detection system
KR20200125362A (en) * 2019-04-25 2020-11-04 울산대학교 산학협력단 Device and method for nondestructive inspection using acoustic signature

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