CN100365669C - Leakage detecting and alarming device for niacin storing tank and ammonia reacting tank - Google Patents
Leakage detecting and alarming device for niacin storing tank and ammonia reacting tank Download PDFInfo
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- CN100365669C CN100365669C CNB2005100131668A CN200510013166A CN100365669C CN 100365669 C CN100365669 C CN 100365669C CN B2005100131668 A CNB2005100131668 A CN B2005100131668A CN 200510013166 A CN200510013166 A CN 200510013166A CN 100365669 C CN100365669 C CN 100365669C
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Abstract
The present invention relates to a leakage detecting and alarming device for a niacin storing tank and an ammonia reacting tank, which comprises a leakage signal collecting and transmitting unit and a leakage signal receiving and processing unit, wherein the leakage signal collecting and transmitting unit comprises a central processing unit of the collecting and transmitting unit, a many-way selection switch, an analogue-digital conversion circuit and a long-distance and/or short-distance radio transmitting module; the leakage signal receiving and processing unit comprises a central processing unit for receiving and processing leakage signals, an RS232C interface and a long-distance or short-distance radio receiving module. As the present invention adopts that leakage gas is detected by a sensor, and an electric analog signal is obtained and is converted into a digital signal by an AD, the digital signal is processed by a single chip computer, and the processed digital signal is transferred to a monitoring center by the radio transmitting module. Thereby, the manpower is saved, the uninterrupted detection is realized, the leakage signal is analyzed, and the occurrence of the leakage event can be avoided. In addition, the digitisation of the detected signal lay a good foundation for the digital information-based construction of an enterprise.
Description
Technical field
The invention belongs to a kind of chemical gases Leak Detection warning device, particularly relate to a kind of Leak Detection warning device with nicotinic acid storage tank and ammonia react jar.
Background technology
In chemical industry, oil, dyestuff and other industry, many objectionable impuritiess are arranged, comprise inflammable and explosive and poisonous gas and liquid (as liquefied petroleum gas (LPG), ammonia, chlorine and sulfuretted hydrogen, sulphuric dioxide, nitrogen dioxide etc.), if produce or transportation in owing to misoperation or other reason, cause these dangerous substances to leak out, will cause great harm resident and environment.In present known gas detection scheme, there are hand-held and fixed two kinds of inspection declarations to survey instrument.The hand-held tester device needs the operator to enter the scene that may produce leakage, in case produce gas leakage, site environment will be very dislike strong, thereby bring personal injury to the operator easily.In addition, in existing leakage warning system, the great majority that adopted are fixed type of alarms.Fixed type of alarm is that detected leakage gas is become electric signal by sensor, pass to Surveillance center by wired mode then, there have been modes such as corresponding alarm lamp or emergency alarm bell in Surveillance center and have produced alerting signal, such mode is along with the inconvenience that conference brings aspects such as line that adds of distance between scene and the Surveillance center, and cost also can increase thereupon.
Summary of the invention
The present invention provides a kind of for solving the technical matters that exists in the known technology, and the people needn't arrive on-the-spot place and the nicotinic acid storage tank of other warning message and the Leak Detection warning device of ammonia react jar that just can learn alarm generation.
The present invention for the technical scheme that solves the technical matters that exists in the known technology and take is: it includes and is used for detecting sensor that detected gas leaks and transmitter thereof, warning utensil, it is characterized in that it includes also that leakage signal is collected transmitting element and leakage signal receives processing unit; Leakage signal is collected transmitting element and is included collection transmitting element central processing unit, multidiameter option switch, analog to digital converter, long-distance and/or short distance wireless sending module; Detecting sensor will detect the signal of revealing gas and pass through transmitter, send into analog to digital converter through multidiameter option switch again,, collect the transmitting element central processing unit and also link to each other again with the storer of signal input collection transmitting element central processing unit through analog to digital converter with long-distance and/or short distance wireless sending module; Leakage signal receives processing unit and includes leakage signal reception processing central processing unit, RS232C interface and a long-distance and/or short distance wireless receiving module, long-distance and/or short distance wireless receiving module is collected the signal that transmitting element sends over the leakage signal that receives, and receives the processing central processing unit by passing the signal to leakage signal behind the RS232C interface again.
The present invention can also adopt following technical measures:
Described leakage signal is collected transmitting element and leakage signal and is collected that to receive processing unit be that a leakage signal is collected transmitting element and two leakage signals receive processing units, and it be to receive processing unit in the middle of the leakage signal another is a leakage signal terminal reception processing unit that described two leakage signals receive in the processing unit one; The wireless sending module that described leakage signal is collected in the transmitting element is the short distance wireless sending module; The wireless sending module that receives in the processing unit in the middle of the described leakage signal includes a short distance wireless receiving module and a long-distance wireless sending module; Described leakage signal terminal receives processing unit, and its wireless receiving module is long-distance wireless receiving module.
Described leakage signal is collected the transmitting element central processing unit, and also each links to each other with a ferroelectric memory, a clock chip respectively with leakage signal reception processing central processing unit.
Advantage and good effect that the present invention has are: because the present invention's employing is to reveal gas to obtain its electric analoging signal through sensor, this simulating signal transforms through AD and becomes digital signal, single-chip microcomputer can be handled this digital signal, certain in addition analysis, pass to Surveillance center by wireless transmitter module then, the transfer mode that carries out alerting signal by this wireless telecommunications makes the staff needn't arrive on-the-spot each check point and promptly knows the position of leakage and other warning message, saved manpower, and owing to realized continual detection, might carry out manual analysis for revealing the sign that produces, avoid the generation of the incident of revealing.In addition, the digitizing of detection signal has been established good basis for the digital information construction of enterprise.Particularly work as the present invention and adopted three layers cellular construction, collect transmitting elements, middle processing unit and another leakage signal terminal reception processing unit of receiving of leakage signal as arranging a few bottom leakage signals as required.The system that makes like this has the sensing range of broad, and collects transmitting element generation problem as certain bottom leakage signal, then needs only the sensor assembly of changing in this bottom floor units, so very convenient for the maintenance of this device.In addition, adopt such three-layer cell structure to make and finish under the same function situation, system more economically.
The present invention has in addition adopted " black box " technology, promptly by ferroelectric memory, software I
2The sensing data history module that C bus interface and clock chip are formed constitutes.At regular intervals, it will record the moon, day, hour, minute and each the current sensor output value in the clock chip on the ferroelectric memory, when ferroelectric memory write full after record again from the beginning then, cover original record, after making that like this leakage incident takes place, can to taking place, leakage reasons analyze according to the data in ferroelectric.
In the present invention can deposit the data in the ferroelectric memory in computing machine with the top layer communication by the mode of wireless data transmission, this computing machine adopted VC++ to programme based on odbc database, and SQL SEVER 2000 is conducted interviews.The employing of database technology makes that the on-the-spot information of monitoring can be as data storage at middle control center, and this informatization for enterprise provides good prerequisite and basis.
Description of drawings
Fig. 1 is one of wiring block scheme of the present invention;
Fig. 2 is two of a wiring block scheme of the present invention;
Fig. 3 is three of a wiring block scheme of the present invention;
Fig. 4 is four of a wiring block scheme of the present invention.
Embodiment
For further understanding content of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Reveal when the nicotinic acid storage tank of a chemical fibre factory and ammonia react jar are easily produced that concrete analysis is carried out in the place and experience is in the past judged, determined concrete scheme: adopt three layers cellular construction.Bottom floor units comprises 12 bottom modules.Materials inside to nicotinic acid storage tank and ammonia react jar is analyzed, and take place to reveal the gas of revealing in the nicotinic acid storage tank be SO2 in case draw, and the gas of revealing in the ammonia react jar is NH3 and NO2.Because the nicotinic acid storage tank has 8, promptly at each nicotinic acid storage tank a SO is installed respectively at the outlet valve place
2Sensor, each adopts a bottom module, and the pie graph of each bottom module is as shown in Figure 1.
Jar junction up and down of ammonia react jar is divided into 12 intervals, and a NO is respectively installed in each interval
2Sensor and a NH
3Sensor, per four intervals are as a detecting unit; A detecting unit is installed at watch window place at the ammonia react jar, has 4 detecting units, and each detecting unit respectively adopts a bottom module, and the pie graph of each bottom module as shown in Figure 2.
This device has adopted SO
2, NO
2And NH
3Three kinds of sensors.The SO that adopts
2Sensor and NO
2Sensor and transmitter thereof are the SO that Britain Alpha sense company limited produces
2-BF, NO
2-B1 electrochemical gas sensor, NH
3Sensor is the TGS824 semiconductor gas sensor that Japanese Figaro company produces.
As shown in Figure 1, 2: each installs SO
2In the bottom module of sensor and transmitter thereof, include MSP430F149 single-chip microcomputer 1-1, a communication distance and be 500 meters the Shanghai STR-10 of Sang Bo company type short distance wireless transmission digital transmission module and alarm lamp; And each has installed four couples of NO
2And NH
3In the bottom module of sensor and transmitter thereof, also be that also to include MSP430F149 single-chip microcomputer 1-2, a communication distance be 500 meters the Shanghai STR-10 of Sang Bo company type short distance wireless transmission digital transmission module and alarm lamp.Detect SO in the described bottom module
2, NO
2And NH
3Sensor will detect the signal of revealing gas and pass through transmitter, import the analog to digital converter of MSP430F149 single-chip microcomputer 1--1 again through the multidiameter option switch among MSP430F149 single-chip microcomputer 1-1 or the MSP430F149 single-chip microcomputer 1-2, analog to digital converter is the storer of input MSP430F149 single-chip microcomputer 1-1 after the digital signal with analog-signal transitions, and MSP430F149 single-chip microcomputer 1-1 also links to each other with STR-10 type short distance wireless transmission digital transmission module.Same NO
2And NH
3Sensor will detect the signal of revealing gas and pass through transmitter, import the analog to digital converter of MSP430F149 single-chip microcomputer 1--2 again through the multidiameter option switch among the MSP430F149 single-chip microcomputer 1-2, analog to digital converter is the storer of input MSP430F149 single-chip microcomputer 1-2 after the digital signal with analog-signal transitions, and MSP430F149 single-chip microcomputer 1-2 also links to each other with STR-10 type short distance wireless transmission digital transmission module.
As shown in Figure 3: the unit, middle level include a RS232C interface, MSP430F149 single-chip microcomputer 2, STR-10 type short distance wireless receiving digital transmission module and a day smart ND202 series specialty send number and pass long-distance module.RXD, TXD on the STR-10 type short distance wireless receiving digital transmission module are connected with URXD0 with the UTXD0 of MSP430F149 single-chip microcomputer 2 respectively, and day smart ND202 series specialty sends RXD, TXD that number passes long-distance module and is connected with URXD1 with the UTXD1 of MSP430F149 single-chip microcomputer 2 respectively and forms.There is important effect the unit, middle level as the part of total system, and it plays the effect of getting in touch of bottom floor units and top layer unit.The unit, middle level carries out communication with short distance wireless module and bottom, through central processing unit handle whole to resulting data and, carry out communication contact through long-distance wireless module and top layer unit again.
The top layer unit is the ultimate recipient of warning message in native system, and the function of warning message being passed to computing machine is arranged.As shown in Figure 4: the top layer unit is placed on to be repaired in the robot, and its effect is that the warning message that will get passes to the repairing robot.Top-level module by a MSP430F149 single-chip microcomputer 3, RS232C interface, a day smart ND202 series specialty receive number and pass long-distance module etc. and form.It passes long-distance module by day smart ND202 series specialty reception number and receives the signal that middle layer module sends over, and transmits information to the top layer computing machine.
Every layer of unit of the invention described above is by compositions such as power supply circuit board, testing circuit plate, wireless data transmission module, battery, pilot lamp and switches.
In addition, each MSP430F149 single-chip microcomputer 1 also will link to each other with a clock chip with a ferroelectric memory again, and MSP430F149 single-chip microcomputer 1 respectively has an end to link to each other with alarm respectively simultaneously.
Digital signal input MSP430F149 single-chip microcomputer 1 compares with the threshold value that sets in advance after treatment, when the signal of collection in worksite surpasses the threshold value that sets in advance, on-the-spot alarm lamp sends warning message, and the bottom module is transmitted data by the Shanghai Sang Bo STR-10 of company type STR-10 type short distance wireless transmission digital transmission module output signal to the middle layer simultaneously.
In the practical application of native system, also can adopt the pattern of two-layer unit, in case concrete the application is that the leakage incident takes place, the gas sensor of the bottom floor units of native system will detect leakage gas, the signal of each sensor is through sending the analog to digital converter of MSP430 single-chip microcomputer again through multidiameter option switch behind the transmitter, after the analog to digital converter conversion, with analog-signal transitions is the storer that digital signal deposits single-chip microcomputer in, compare with the threshold value that sets in advance after treatment, when the signal of collection in worksite surpasses the threshold value that sets in advance, on-the-spot alarm lamp sends warning message, and the bottom module is transmitted data by wireless transport module to the top layer unit simultaneously.At last, the top layer unit sends warning message by the RS232C interface to computing machine.After on-the-spot leakage phenomenon was eliminated, bottom-up transmitting system signal working properly was removed warning message.Under this two-layer unit mode, wireless module promptly can adopt the short distance wireless module simultaneously, also can adopt long-distance wireless module simultaneously.
In the practical application of native system, in case the leakage incident takes place, the gas sensor of the bottom floor units of native system will detect leakage gas, the signal of each sensor is through sending into the analog to digital converter of MSP430 single-chip microcomputer through multidiameter option switch behind the transmitter, after the analog to digital converter conversion, with analog-signal transitions is the storer that digital signal deposits single-chip microcomputer in, compare with the threshold value that sets in advance after treatment, when the signal of collection in worksite surpasses the threshold value that sets in advance, on-the-spot alarm lamp sends warning message, and the bottom module is transmitted data by the short distance wireless transport module to the middle layer simultaneously.
Then middle layer elements will from the data that bottom is sent put in order and, handle, transmit leak condition and leak position signal by long-distance wireless transport module to being installed in the top-level module of repairing on the mobile robot, at last, top-level module sends warning message by the RS232C interface to computing machine.After on-the-spot leakage phenomenon was eliminated, bottom-up transmitting system signal working properly was removed warning message.
Claims (3)
1. the Leak Detection warning device of nicotinic acid storage tank and ammonia react jar, it includes and is used for detecting sensor that detected gas leaks and transmitter thereof, warning utensil, it is characterized in that it includes also that leakage signal is collected transmitting element and leakage signal receives processing unit; Leakage signal is collected transmitting element and is included collection transmitting element central processing unit, multidiameter option switch, analog to digital converter, long-distance and/or short distance wireless sending module; Detecting sensor will detect the signal of revealing gas and pass through transmitter, send into analog to digital converter through multidiameter option switch again,, collect the transmitting element central processing unit and also link to each other again with the storer of signal input collection transmitting element central processing unit through analog to digital converter with long-distance and/or short distance wireless sending module; Leakage signal receives processing unit and includes leakage signal reception processing central processing unit, RS232C interface and a long-distance and/or short distance wireless receiving module, long-distance and/or short distance wireless receiving module is collected the signal that transmitting element sends over the leakage signal that receives, and receives the processing central processing unit by passing the signal to leakage signal behind the RS232C interface again.
2. the Leak Detection warning device of nicotinic acid storage tank according to claim 1 and ammonia react jar, it is characterized in that it includes that leakage signal is collected transmitting element and two leakage signals receive processing units, it be to receive processing unit in the middle of the leakage signal another is a leakage signal terminal reception processing unit that described two leakage signals receive in the processing unit one; The wireless sending module that described leakage signal is collected in the transmitting element is the short distance wireless sending module; The wireless sending module that receives in the processing unit in the middle of the described leakage signal includes a short distance wireless receiving module and a long-distance wireless sending module; Described leakage signal terminal receives processing unit, and its wireless receiving module is long-distance wireless receiving module.
3. the Leak Detection warning device of nicotinic acid storage tank according to claim 1 and 2 and ammonia react jar, also each links to each other with a ferroelectric memory, a clock chip respectively with leakage signal reception processing central processing unit to it is characterized in that described leakage signal collecting the transmitting element central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100131668A CN100365669C (en) | 2005-01-31 | 2005-01-31 | Leakage detecting and alarming device for niacin storing tank and ammonia reacting tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100131668A CN100365669C (en) | 2005-01-31 | 2005-01-31 | Leakage detecting and alarming device for niacin storing tank and ammonia reacting tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1645429A CN1645429A (en) | 2005-07-27 |
| CN100365669C true CN100365669C (en) | 2008-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100131668A Expired - Fee Related CN100365669C (en) | 2005-01-31 | 2005-01-31 | Leakage detecting and alarming device for niacin storing tank and ammonia reacting tank |
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| Country | Link |
|---|---|
| CN (1) | CN100365669C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203307042U (en) | 2013-06-19 | 2013-11-27 | 向东 | High-purity phosphorus oxychloride safely feeding system |
| CN104502037B (en) * | 2014-12-17 | 2017-02-01 | 河北工业大学 | Software closed appliance gas leakage alarm device on basis of gas pressure sensor and strain gauge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104325A (en) * | 1992-09-01 | 1995-06-28 | 拉尔夫·G·赖德诺尔 | Gas leak sensor system |
| CN2526842Y (en) * | 2002-03-04 | 2002-12-18 | 袁金杨 | Combustible gas leakage detector |
| CN2651750Y (en) * | 2003-11-04 | 2004-10-27 | 常州市武进五菱柴油机有限公司 | Low-concentration SF gas realtime checker |
-
2005
- 2005-01-31 CN CNB2005100131668A patent/CN100365669C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104325A (en) * | 1992-09-01 | 1995-06-28 | 拉尔夫·G·赖德诺尔 | Gas leak sensor system |
| CN2526842Y (en) * | 2002-03-04 | 2002-12-18 | 袁金杨 | Combustible gas leakage detector |
| CN2651750Y (en) * | 2003-11-04 | 2004-10-27 | 常州市武进五菱柴油机有限公司 | Low-concentration SF gas realtime checker |
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| Publication number | Publication date |
|---|---|
| CN1645429A (en) | 2005-07-27 |
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