CN215985642U - Smoke and dust purifies on-line monitoring system - Google Patents
Smoke and dust purifies on-line monitoring system Download PDFInfo
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- CN215985642U CN215985642U CN202122116463.2U CN202122116463U CN215985642U CN 215985642 U CN215985642 U CN 215985642U CN 202122116463 U CN202122116463 U CN 202122116463U CN 215985642 U CN215985642 U CN 215985642U
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Abstract
The utility model discloses a smoke and dust purification on-line monitoring system, which comprises a data acquisition unit and a remote transmitting unit, wherein the data acquisition unit comprises a photoelectric dust sensor and a microprocessor, the microprocessor carries out data processing on an acquisition signal of the photoelectric dust sensor and then sends the acquisition signal into the remote transmitting unit, and the remote transmitting unit comprises a preamplifier circuit, a stable power amplifier circuit and a wireless signal transmitter which are sequentially connected.
Description
Technical Field
The utility model relates to the technical field of air purification treatment, in particular to an on-line smoke purification monitoring system.
Background
A large amount of smoke dust is generated in the incineration treatment process of industrial wastes, the smoke dust contains a large amount of dust particles, toxic and harmful substances, and heavy metals such as arsenic, copper, chromium, mercury and the like, and the atmospheric environment is irreversibly damaged due to improper treatment. The smoke and dust purifies on-line monitoring system mainly monitors particulate matter (dust) concentration in the air to carry out data analysis management in long-range sending to the backend server after handling through data acquisition, realize the remote real time monitoring to industrial smoke and dust purifies. However, in the process of transmitting the acquired data, the acquired data signals are easily interfered by the harsh industrial environment, so that network fluctuation and a large amount of clutter are caused, and the accuracy of the on-line data management of the system is seriously influenced.
The present invention provides a new solution to this problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the present invention is directed to provide an online monitoring system for smoke purification.
The technical scheme for solving the problem is as follows: the utility model provides a smoke and dust purifies on-line monitoring system, includes data acquisition unit and remote transmitting unit, data acquisition unit includes photoelectricity dust sensor and microprocessor, microprocessor is right send into after the data processing is carried out to photoelectricity dust sensor's collection signal among the remote transmitting unit, remote transmitting unit is including the preamplifier circuit, stabilize power amplifier circuit and the radio signal transmitter that connect gradually, preamplifier circuit's input is connected microprocessor's data signal output.
Preferably, the preamplification circuit comprises an operational amplifier AR1, an inverting input terminal of the operational amplifier AR1 is connected to a data signal output terminal of the microprocessor sequentially through a resistor R1 and a capacitor C1, a non-inverting input terminal of the operational amplifier AR1 is grounded through a resistor R2 and a capacitor C2 which are connected in parallel, and an output terminal of the operational amplifier AR1 is connected to an input terminal of the stable power amplifier circuit and is connected to an inverting input terminal of the operational amplifier AR1 through a resistor R3.
Preferably, the stable power amplifier circuit includes an operational amplifier AR2, an inverting input terminal of an operational amplifier AR2 is connected to one end of a resistor R4 and one end of a capacitor C3, the other end of the resistor R4 is connected to an output terminal of the operational amplifier AR1, and is connected to a drain of a MOS transistor Q1 through a resistor R5, the other end of the capacitor C3 is connected to an output terminal of the operational amplifier AR2 and a base of a transistor VT1, and is connected to a gate of the MOS transistor Q1 through a resistor R6, a non-inverting input terminal of the operational amplifier AR2 is grounded through a zener diode DZ1, a source of the MOS transistor Q1 is connected to one end of a capacitor C4 and a capacitor C5 through an inductor L1, the other end of a capacitor C4 is connected to a collector of the transistor VT1, an emitter of the transistor 1 is grounded through a resistor R7, and the other end of the capacitor C5 is connected to the wireless signal transmitter.
Preferably, the microprocessor is a single chip microcomputer.
Through the technical scheme, the utility model has the beneficial effects that: according to the utility model, the remote transmitting unit is designed to condition the data signals output by the data acquisition unit, so that the influence of external environment interference clutter on data transmission is effectively inhibited, the influence of network fluctuation on the transmission stability is avoided, the data signal transmission precision is greatly improved, and the accuracy of background data management of the smoke dust purification online monitoring system is ensured.
Drawings
Fig. 1 is a schematic circuit diagram of a remote transmitting unit of the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The utility model provides a smoke and dust purifies on-line monitoring system, includes data acquisition unit and remote transmitting unit, and data acquisition unit includes photoelectricity dust sensor and microprocessor, microprocessor is right the collection signal of photoelectricity dust sensor is sent into after data processing in the remote transmitting unit, the remote transmitting unit is including the preamplification circuit, the stable power amplifier circuit and the radio signal transmitter E1 that connect gradually, the input of preamplification circuit is connected microprocessor's data signal output.
The pre-amplification circuit comprises an operational amplifier AR1, wherein the inverting input end of the operational amplifier AR1 is connected with the data signal output end of the microprocessor sequentially through a resistor R1 and a capacitor C1, the non-inverting input end of the operational amplifier AR1 is grounded through a resistor R2 and a capacitor C2 which are connected in parallel, and the output end of the operational amplifier AR1 is connected with the input end of the stable power amplifier circuit and is connected with the inverting input end of the operational amplifier AR1 through a resistor R3.
The stable power amplifier circuit comprises an operational amplifier AR2, wherein the inverting input end of the operational amplifier AR2 is connected with one end of a resistor R4 and one end of a capacitor C3, the other end of the resistor R4 is connected with the output end of an operational amplifier AR1, and is connected with the drain electrode of a MOS transistor Q1 through a resistor R5, the other end of the capacitor C3 is connected with the output end of an operational amplifier AR2 and the base electrode of a triode VT1, and is connected with the grid electrode of the MOS transistor Q1 through a resistor R6, the non-inverting input end of the operational amplifier AR2 is grounded through a zener diode DZ1, the source electrode of the MOS transistor Q1 is connected with one end of a capacitor C4 and a terminal C5 through an inductor L1, the other end of a capacitor C4 is connected with the collector electrode of the triode VT1, the emitter electrode of the triode VT1 is grounded through a resistor R7, and the other end of the capacitor C5 is connected with the wireless signal transmitter E1.
When the dust concentration monitoring device is used specifically, the photoelectric dust sensor monitors the dust concentration in the air of an industrial production environment in real time, converts the dust concentration into an electric signal and outputs the electric signal to the microprocessor to complete data acquisition, and when the dust concentration monitoring device is set specifically, the microprocessor adopts a single chip microcomputer, and the data signal is transmitted into the remote transmitting unit after being subjected to carrier wave through the internal data processing capacity of the single chip microcomputer.
The specific working flow and principle of the remote transmitting unit are as follows: the preamplification circuit firstly adopts the capacitor C1 to block the data signal and then sends the data signal into the operational amplifier AR1 for signal enhancement processing, the capacitor C2 eliminates the thermal noise interference on the loop of the resistor R2 at the in-phase input end of the operational amplifier AR1, and the interference of the data signal transmission precision due to the environment temperature is effectively avoided. The output signal of the operational amplifier AR1 is subjected to follow amplification by the stable power amplifier circuit through the MOS tube Q1, in order to guarantee the stability of a data signal transmission process, the output signal of the operational amplifier AR1 is subjected to sampling amplification by the operational amplifier AR2, a capacitor C3 is arranged at the feedback end of the operational amplifier AR2 to compensate the output signal of the operational amplifier AR1, a voltage stabilizing diode DZ1 is arranged to form reference voltage at the in-phase input end of the operational amplifier AR2, the output signal of the operational amplifier AR2 is guaranteed to be continuously stable, and the interference influence of network fluctuation is avoided; the output signal of the operational amplifier AR2 provides stable on-state voltage for the gate of the MOS transistor Q1 on the one hand, and ensures stable transmission of the data signal, and on the other hand, drives the triode VT1 to perform power amplification processing on the data signal, and rapidly improves the signal reflection power. Inductor L1 and electric capacity C4 generate specific transmitting frequency for data signal at the power amplifier in-process, send into wireless signal transmitter E1 long-range transmission to in the backend server after electric capacity C5 coupling finally, through carrying out analysis processes to data signal in the backend server, accomplish the real-time supervision to industrial environment smoke and dust purification degree.
In conclusion, the remote transmitting unit is designed to condition the data signals output by the data acquisition unit, so that the influence of external environment interference clutter on data transmission is effectively inhibited, the influence of network fluctuation on the transmission stability is avoided, the data signal transmission precision is greatly improved, and the accuracy of background data management of the smoke and dust purification online monitoring system is ensured.
While the utility model has been described in further detail with reference to specific embodiments thereof, it is not intended that the utility model be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (4)
1. The utility model provides a smoke and dust purifies on-line monitoring system, includes data acquisition unit and remote transmitting unit, its characterized in that: the data acquisition unit includes photoelectricity dust sensor and microprocessor, microprocessor is right it sends into after data processing to carry out data processing photoelectricity dust sensor's collection signal among the remote transmitting unit, the remote transmitting unit is including the preamplifier circuit, stabilize power amplifier circuit and the wireless signal transmitter that connect gradually, preamplifier circuit's input is connected microprocessor's data signal output.
2. The on-line monitoring system for smoke purification according to claim 1, wherein: the pre-amplification circuit comprises an operational amplifier AR1, wherein the inverting input end of the operational amplifier AR1 is connected with the data signal output end of the microprocessor sequentially through a resistor R1 and a capacitor C1, the non-inverting input end of the operational amplifier AR1 is grounded through a resistor R2 and a capacitor C2 which are connected in parallel, and the output end of the operational amplifier AR1 is connected with the input end of the stable power amplifier circuit and is connected with the inverting input end of the operational amplifier AR1 through a resistor R3.
3. The on-line monitoring system for smoke purification according to claim 2, wherein: the stable power amplifier circuit comprises an operational amplifier AR2, wherein the inverting input end of the operational amplifier AR2 is connected with one end of a resistor R4 and one end of a capacitor C3, the other end of the resistor R4 is connected with the output end of an operational amplifier AR1, and is connected with the drain electrode of a MOS tube Q1 through a resistor R5, the other end of the capacitor C3 is connected with the output end of an operational amplifier AR2 and the base electrode of a triode VT1, and is connected with the grid electrode of the MOS tube Q1 through a resistor R6, the non-inverting input end of the operational amplifier AR2 is grounded through a zener diode DZ1, the source electrode of the MOS tube Q1 is connected with one end of a capacitor C4 and a terminal C5 through an inductor L1, the other end of a capacitor C4 is connected with the collector electrode of the triode VT1, the emitter electrode of the triode VT1 is grounded through a resistor R7, and the other end of the capacitor C5 is connected with the wireless signal transmitter.
4. The on-line monitoring system for smoke purification according to any one of claims 1 to 3, wherein: the microprocessor is a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122116463.2U CN215985642U (en) | 2021-09-03 | 2021-09-03 | Smoke and dust purifies on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122116463.2U CN215985642U (en) | 2021-09-03 | 2021-09-03 | Smoke and dust purifies on-line monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN215985642U true CN215985642U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122116463.2U Active CN215985642U (en) | 2021-09-03 | 2021-09-03 | Smoke and dust purifies on-line monitoring system |
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2021
- 2021-09-03 CN CN202122116463.2U patent/CN215985642U/en active Active
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