CN202632481U - Anti-theft self-check harmful gas leakage alarm suitable for petroleum refinery - Google Patents
Anti-theft self-check harmful gas leakage alarm suitable for petroleum refinery Download PDFInfo
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- CN202632481U CN202632481U CN 201220337121 CN201220337121U CN202632481U CN 202632481 U CN202632481 U CN 202632481U CN 201220337121 CN201220337121 CN 201220337121 CN 201220337121 U CN201220337121 U CN 201220337121U CN 202632481 U CN202632481 U CN 202632481U
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Abstract
The utility model discloses an anti-theft self-check harmful gas leakage alarm suitable for a petroleum refinery, which mainly consists of a power processing circuit connected to the 220V mains supply as well as a harmful gas detection circuit and an acoustic-optical alarm member sequentially connected with the power processing circuit, wherein the acoustic-optical alarm member is also connected with a light-sensitive clock circuit; and the light-sensitive clock circuit is also connected with an anti-theft circuit. The anti-theft self-check harmful gas leakage alarm disclosed by the utility model has the advantages of high measurement reliability, stable overall performance and reliable detection data, has an automatic polling function and can prevent burglary.
Description
Technical field
The utility model relates to gas detection reports to the police, and specifically is meant the antitheft self check poisonous gas leakage alarm that is applicable to Petroleum refining factory.
Background technology
Gas alarm is exactly a gas leakage detection alarm instrument.When flammable in the industrial environment or toxic gas are revealed; When gas alarm detects gas concentration and reaches the critical point that blast or poisoning alarm be provided with; Alarm will send alerting signal, takes safety measures with prompting work, and drives air draft, cut-out, spray system; Prevent blast, fire, intoxication accident, thereby guarantee safe production.
1. 0-100% LEL in the alarm and 0-n PPM
2. the conversion of the ppm of gas and mg/m3
0 progressively gets into the industrialized while in China, and Chinese etesian industrial accident is also taking place repeatedly.These type of news report such as explosion of coal mines, factory building are on fire, workman's poisoning emerge in an endless stream.The generation of these accidents is main to be caused because use is inflammable and explosive in the industrial environment, toxic and harmful is improper.This Chinese Government is constantly released the generation that relevant decree is prevented industrial accident: " People's Republic of China's safety in production method " passed through in the 28 meeting of Standing Committee of the National People's Congress of the People's Republic of China (PRC) on June 29 in 2002, from execution on November 1 in 2002.Relevant decree is also made by each provinces and cities: for example: the 19 meeting of the tenth People's Congress Standing Committee in Shandong Province's on March 30th, 2006 passed through " Shandong Province's safety in production regulations " this provision from execution on June 1 in 2006.
The classification of gas alarm: gas alarm is divided into home-use gas alarm and industrial gas alarm.Home-use gas alarm mainly is to detect coal gas and rock gas leakage.The industrial gas alarm then is industrial harmful gases such as detection ammonia.
The structure of gas alarm constitutes: industrial fixed gas alarm is made up of alarm controller and detector; Controller can be positioned in the duty room; Mainly each monitoring point is controlled; Detector is installed on the gas place of easy leakage, and its core component is built-in gas sensor, the concentration of gas in the sensor air.Detector with sensor to gas concentration convert electric signal to; To controller, gas concentration is high more through cable transmission, and electric signal is strong more; When gas concentration meets or exceeds the alarm set point of alarm controller setting; Alarm sends alerting signal, and can start solenoid valve, vent fan etc. and outreach equipment, gets rid of hidden danger automatically.
Portable gas detector is a hand-held, and the staff can carry, and detects the gas concentration of different location, and portable gas detector collection controller, detector are in one, and be small and exquisite flexible.Comparing the key distinction with the stationary gas alarm is that portable gas detector can not outreach other equipment.
In order to report to the police, prevent situation generations such as wrong report, we need design a kind of ability delayed alarm, can be used for the warning device of Petroleum refining factory.Simultaneously because the importance and the singularity of harmful gas manufacturer such as Petroleum refining factory, warning device also must possess the automatic inspection function of every day.Simultaneously, stolen in order to prevent, should also anti-theft feature to be set.
The utility model content
The purpose of the utility model is to provide overall performance stable, and it is reliable to detect data, and production cost is low, and inspection function automatically is applicable to the antitheft self check poisonous gas leakage alarm of Petroleum refining factory.
The implementation of the utility model is following: be applicable to the antitheft self check poisonous gas leakage alarm of Petroleum refining factory, mainly form by the power supply processing circuit that inserts civil power 220V and with harmful gas testing circuit, sound and light alarm device that power supply processing circuit is connected successively; Said sound and light alarm device also is connected with the sensitization alarm clock circuitry; Said sensitization alarm clock circuitry also is connected with anti-theft circuit.
Said power supply processing circuit is mainly by the transformer that inserts civil power 220V, and the rectifier bridge VD1 ~ VD4 that is connected with transformer, and the voltage stabilizing diode VD8 that is connected with rectifier bridge VD1 ~ VD4, capacitor C 1 formation, and said voltage stabilizing diode VD8 is parallelly connected with capacitor C 1.
Said harmful gas testing circuit mainly is made up of gas sensor QM-N5, adjustable resistance RP2, adjustable resistance RP1, the diode VD5 of series connection successively; Diode VD5 is connected with the B end of gas sensor QM-N5; And the A of said gas sensor QM-N5 end is connected with adjustable resistance RP2; The A end of said gas sensor QM-N5 is connected with rectifier bridge VD1 ~ VD4 output electrode, and adjustable resistance RP1 is connected with rectifier bridge VD1 ~ VD4 output electrode away from the end of diode VD5.
Said sound and light alarm device is mainly by light emitting diode VD7, the hummer HA of parallel connection; The two ends of said light emitting diode VD7 are connected with diode VD5 with the A end of gas sensor QM-N5 respectively; And between said light emitting diode VD7 and the diode VD5 triode VT1 is set also; Still be provided with triode VT2 between said light emitting diode VD7 and the hummer HA, said triode VT2 also is connected with triode VT3, and said triode VT3 is connected with adjustable resistance RP1.
Described light emitting diode VD7 is multi-colour luminous diode.
Said sensitization alarm clock circuitry mainly is made up of the switch S and the photodiode VD6 of series connection; Said diode VD6 is connected away from an end of the A end of gas sensor QM-N5 with light emitting diode VD7, and said switch S is connected with adjustable resistance RP1.
Said anti-theft circuit mainly is made up of tongue tube-magnet assemblies T, and the end of said tongue tube-magnet assemblies T is connected near the end of light emitting diode VD7 with diode VD6, and the other end of tongue tube-magnet assemblies T is connected with adjustable resistance RP1.
Power supply processing circuit mainly is made up of transformer, rectifier bridge VD1 ~ VD4, voltage stabilizing diode VD8, capacitor C 1.
The harmful gas testing circuit is made up of devices such as gas sensor QM-N5, adjustable resistance RP1, adjustable resistance RP2, diode VD5.
Sound and light alarm device mainly is made up of multi-colour luminous diode VD7 and hummer HA.
The harmful gas alarm circuit course of work: at ordinary times; Gas sensor QM-N5 does not contact harmful gas (carbon monoxide, coal gas, liquefied petroleum gas (LPG) etc.); The resistance value of its A, B two interpolars is very big; At this moment not conducting of diode VD5 all ends triode VT1, triode VT2, triode VT3, and sound and light alarm device is not worked.When the concentration of the harmful gas in monitored district reached certain value, the A of gas sensor QM-N5 end, B held the resistance of two interpolars to diminish, and make diode VD5 conducting; Adopt time delay device, can delay time a period of time (it is very short to delay time, and mainly is the prevention false alarm); Time-delay finishes back triode VT1, triode VT2, the equal saturation conduction of triode VT3; Make hummer HA send chimes of doom, multi-colour luminous diode VD7 sends colorful light, has realized the requirement that harmful gas is reported to the police.
The sensitization alarm clock circuitry course of work: daytime, switch S was broken off, to evening can be closed.After the evening S closure, photodiode VD6 does not receive light, and not conducting of VD6 at this moment all ends triode VT2, VT3; Sound and light alarm device is not worked.Brightened the same day or light reaches when necessarily requiring.Photodiode VD6 perceptual signal diminishes and conducting its internal resistance, makes triode VT2, the equal saturation conduction of VT3, the purpose of sound and light alarm device pronunciation, luminous realization daybreak sensitization alarm clock.
The advantage of the utility model is: measuring reliability is high, and overall performance is stable, and it is reliable to detect data, and inspection function can be guarded against theft automatically.
Description of drawings
Fig. 1 is the circuit diagram of the utility model.
Embodiment
Embodiment one
As shown in Figure 1.
Be applicable to the antitheft self check poisonous gas leakage alarm of Petroleum refining factory, mainly form by the power supply processing circuit that inserts civil power 220V and with harmful gas testing circuit, sound and light alarm device that power supply processing circuit is connected successively; Said sound and light alarm device also is connected with the sensitization alarm clock circuitry; Said sensitization alarm clock circuitry also is connected with anti-theft circuit.
Said power supply processing circuit is mainly by the transformer that inserts civil power 220V, and the rectifier bridge VD1 ~ VD4 that is connected with transformer, and the voltage stabilizing diode VD8 that is connected with rectifier bridge VD1 ~ VD4, capacitor C 1 formation, and said voltage stabilizing diode VD8 is parallelly connected with capacitor C 1.
Said harmful gas testing circuit mainly is made up of gas sensor QM-N5, adjustable resistance RP2, adjustable resistance RP1, the diode VD5 of series connection successively; Diode VD5 is connected with the B end of gas sensor QM-N5; And the A of said gas sensor QM-N5 end is connected with adjustable resistance RP2; The A end of said gas sensor QM-N5 is connected with rectifier bridge VD1 ~ VD4 output electrode, and adjustable resistance RP1 is connected with rectifier bridge VD1 ~ VD4 output electrode away from the end of diode VD5.
Said sound and light alarm device is mainly by light emitting diode VD7, the hummer HA of parallel connection; The two ends of said light emitting diode VD7 are connected with diode VD5 with the A end of gas sensor QM-N5 respectively; And between said light emitting diode VD7 and the diode VD5 triode VT1 is set also; Still be provided with triode VT2 between said light emitting diode VD7 and the hummer HA, said triode VT2 also is connected with triode VT3, and said triode VT3 is connected with adjustable resistance RP1.
Described light emitting diode VD7 is multi-colour luminous diode.
Said sensitization alarm clock circuitry mainly is made up of the switch S and the photodiode VD6 of series connection; Said diode VD6 is connected away from an end of the A end of gas sensor QM-N5 with light emitting diode VD7, and said switch S is connected with adjustable resistance RP1.
Said anti-theft circuit mainly is made up of tongue tube-magnet assemblies T, and the end of said tongue tube-magnet assemblies T is connected near the end of light emitting diode VD7 with diode VD6, and the other end of tongue tube-magnet assemblies T is connected with adjustable resistance RP1.
Power supply processing circuit mainly is made up of transformer, rectifier bridge VD1 ~ VD4, voltage stabilizing diode VD8, capacitor C 1.
The harmful gas testing circuit is made up of devices such as gas sensor QM-N5, adjustable resistance RP1, adjustable resistance RP2, diode VD5.
Sound and light alarm device mainly is made up of multi-colour luminous diode VD7 and hummer HA.
The harmful gas alarm circuit course of work: at ordinary times; Gas sensor QM-N5 does not contact harmful gas (carbon monoxide, coal gas, liquefied petroleum gas (LPG) etc.); The resistance value of its A, B two interpolars is very big; At this moment not conducting of diode VD5 all ends triode VT1, triode VT2, triode VT3, and sound and light alarm device is not worked.When the concentration of the harmful gas in monitored district reached certain value, the A of gas sensor QM-N5 end, B held the resistance of two interpolars to diminish, and make diode VD5 conducting; Adopt time delay device, can delay time a period of time (it is very short to delay time, and mainly is the prevention false alarm); Time-delay finishes back triode VT1, triode VT2, the equal saturation conduction of triode VT3; Make hummer HA send chimes of doom, multi-colour luminous diode VD7 sends colorful light, has realized the requirement that harmful gas is reported to the police.
The sensitization alarm clock circuitry course of work: daytime, switch S was broken off, to evening can be closed.After the evening S closure, photodiode VD6 does not receive light, and not conducting of VD6 at this moment all ends triode VT2, VT3; Sound and light alarm device is not worked.Brightened the same day or light reaches when necessarily requiring.Photodiode VD6 perceptual signal diminishes and conducting its internal resistance, makes triode VT2, the equal saturation conduction of VT3, the purpose of sound and light alarm device pronunciation, luminous realization daybreak sensitization alarm clock.
Simultaneously if after daybreak, this device does not send the information of warning alarm clock, then can remind the staff that there has been fault in this device.Because other are easy to generate harmful other place in Petroleum refining factory etc., if warning device breaks down, and the staff can not in time find; Be easy to cause damage so; That is, just in case the gas incident of overflowing takes place, alarm is in malfunction; The staff does not find in time again and fixes a breakdown that the probability that accident then occurs then can increase greatly.The purpose of the sensitization alarm clock circuitry that for this reason is provided with in the utility model has two, and one is daybreak to wake task automatically, and another is to carry out self check every day to handle.Prevent not found after the fault by the people.Can reduce the generation of security incident greatly.
In addition, tongue tube-magnet assemblies T is made up of tongue tube and magnet; Tongue tube has only the magnet of cooperation to work, and the tongue tube contact just broke off when promptly magnet was near tongue tube, otherwise then closed.At ordinary times, tongue tube and magnet are together, and promptly the tongue tube contact is when robber (no) of breaking off, and triode VT2, VT3 all end, and sound and light alarm device is not worked.When the thief moved the hidden magnet in tongue tube place, the tongue tube contact closure made triode VT2, the equal saturation conduction of VT3, the purpose of sound and light alarm device pronunciation, luminous realization burglar alarm.
As stated, then can well realize the utility model.
Claims (7)
1. be applicable to the antitheft self check poisonous gas leakage alarm of Petroleum refining factory, it is characterized in that: mainly form by the power supply processing circuit that inserts civil power 220V and with harmful gas testing circuit, sound and light alarm device that power supply processing circuit is connected successively; Said sound and light alarm device also is connected with the sensitization alarm clock circuitry; Said sensitization alarm clock circuitry also is connected with anti-theft circuit.
2. the antitheft self check poisonous gas leakage alarm that is applicable to Petroleum refining factory according to claim 1; It is characterized in that: said power supply processing circuit is mainly by the transformer that inserts civil power 220V; And the rectifier bridge VD1 ~ VD4 that is connected with transformer; And the voltage stabilizing diode VD8 that is connected with rectifier bridge VD1 ~ VD4, capacitor C 1 constitute, and said voltage stabilizing diode VD8 is parallelly connected with capacitor C 1.
3. the antitheft self check poisonous gas leakage alarm that is applicable to Petroleum refining factory according to claim 2; It is characterized in that: said harmful gas testing circuit mainly is made up of gas sensor QM-N5, adjustable resistance RP2, adjustable resistance RP1, the diode VD5 of series connection successively; Diode VD5 is connected with the B end of gas sensor QM-N5; And the A of said gas sensor QM-N5 end is connected with adjustable resistance RP2; The A end of said gas sensor QM-N5 is connected with rectifier bridge VD1 ~ VD4 output electrode, and adjustable resistance RP1 is connected with rectifier bridge VD1 ~ VD4 output electrode away from the end of diode VD5.
4. the antitheft self check poisonous gas leakage alarm that is applicable to Petroleum refining factory according to claim 3; It is characterized in that: said sound and light alarm device is mainly by light emitting diode VD7, the hummer HA of parallel connection; The two ends of said light emitting diode VD7 are connected with diode VD5 with the A end of gas sensor QM-N5 respectively; And between said light emitting diode VD7 and the diode VD5 triode VT1 is set also; Still be provided with triode VT2 between said light emitting diode VD7 and the hummer HA, said triode VT2 also is connected with triode VT3, and said triode VT3 is connected with adjustable resistance RP1.
5. the antitheft self check poisonous gas leakage alarm that is applicable to Petroleum refining factory according to claim 4, it is characterized in that: described light emitting diode VD7 is multi-colour luminous diode.
6. the antitheft self check poisonous gas leakage alarm that is applicable to Petroleum refining factory according to claim 4 is characterized in that: said sensitization alarm clock circuitry mainly is made up of the switch S and the photodiode VD6 of series connection; Said diode VD6 is connected away from an end of the A end of gas sensor QM-N5 with light emitting diode VD7, and said switch S is connected with adjustable resistance RP1.
7. the antitheft self check poisonous gas leakage alarm that is applicable to Petroleum refining factory according to claim 6; It is characterized in that: said anti-theft circuit mainly is made up of tongue tube-magnet assemblies T; The end of said tongue tube-magnet assemblies T is connected near the end of light emitting diode VD7 with diode VD6, and the other end of tongue tube-magnet assemblies T is connected with adjustable resistance RP1.
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| CN 201220337121 CN202632481U (en) | 2012-07-12 | 2012-07-12 | Anti-theft self-check harmful gas leakage alarm suitable for petroleum refinery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544798A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Antitheft self-check harmful gas leakage alarm suitable for petroleum refinery |
| CN104252768A (en) * | 2013-06-25 | 2014-12-31 | 成都旋极历通信息技术有限公司 | Harmful gas alarm device for airplane storage room |
| CN104318719A (en) * | 2014-10-30 | 2015-01-28 | 四川鑫远志空间信息科技有限公司 | Factory gas leakage monitoring alertor |
-
2012
- 2012-07-12 CN CN 201220337121 patent/CN202632481U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544798A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Antitheft self-check harmful gas leakage alarm suitable for petroleum refinery |
| CN104252768A (en) * | 2013-06-25 | 2014-12-31 | 成都旋极历通信息技术有限公司 | Harmful gas alarm device for airplane storage room |
| CN104318719A (en) * | 2014-10-30 | 2015-01-28 | 四川鑫远志空间信息科技有限公司 | Factory gas leakage monitoring alertor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20130712 |