CN210217789U - Underground concentrated solution hydraulic monitoring system - Google Patents
Underground concentrated solution hydraulic monitoring system Download PDFInfo
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- CN210217789U CN210217789U CN201920713969.1U CN201920713969U CN210217789U CN 210217789 U CN210217789 U CN 210217789U CN 201920713969 U CN201920713969 U CN 201920713969U CN 210217789 U CN210217789 U CN 210217789U
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Abstract
The utility model discloses a concentrated liquid underground hydraulic monitoring system, which comprises a liquid level monitoring circuit, a double-limit comparison circuit and a double-path early warning circuit, wherein the liquid level monitoring circuit comprises an infrared liquid level sensor J1 arranged at the top of a liquid tank, the double-path early warning circuit comprises an acousto-optic alarm circuit and a computer terminal alarm circuit, the input ends of the acousto-optic alarm circuit and the computer terminal alarm circuit are connected with the output end of the double-limit comparison circuit, the utility model discloses a liquid level monitoring circuit is designed to detect the liquid level of the concentrated liquid in the liquid tank, the output signal of the liquid level monitoring circuit is sent into the double-limit comparison circuit to carry out bidirectional comparison output, the output signal of the double-limit comparison circuit is used as a control signal to drive the acousto-optic alarm circuit and the computer terminal alarm circuit to work, when the concentrated liquid leaks, the working personnel is informed to overhaul in time, the, the automation degree is high, and the method has good practical value and development value.
Description
Technical Field
The utility model relates to a concentrate hydraulic pressure control technical field especially relates to a concentrate hydraulic pressure monitored control system in pit.
Background
The concentrated hydraulic fluid for the hydraulic support is prepared by compounding a lubricant, an emulsifier and an antirust anticorrosive agent which have good hydrophilicity with water as a base fluid, forms a thermodynamic stable system with a solubilization effect, has the characteristics of good stability, low cost, environmental friendliness and the like, and is widely applied to hydraulic systems of coal mine hydraulic supports, machinery industries and metallurgy industries as a transmission medium. However, in the actual use process, the concentrated liquid in the liquid tank of the support or the pillar often causes leakage, the existing leakage-proof work mainly inspects the underground hydraulic system through manual regular inspection, the point inspection is carried out through visual inspection, the phenomenon that the hydraulic detection is untimely and the leakage detection is missed often occurs, and the time and the labor are wasted.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of the above, in order to overcome the defects of the prior art, an object of the present invention is to provide a system for monitoring the underground hydraulic pressure of a concentrated solution.
The technical scheme for solving the problem is as follows: a concentrated liquid underground hydraulic monitoring system comprises a liquid level monitoring circuit, a double-limit comparison circuit and a double-circuit early warning circuit, wherein the liquid level monitoring circuit comprises an infrared liquid level sensor J1 arranged at the top of a liquid tank, the output end of the infrared liquid level sensor J1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with one end of a resistor R2 and one end of a capacitor C1, the other end of the capacitor C1 is grounded, the other end of the resistor R2 is connected with the base electrode of a triode VT1, the collector electrode of a triode VT1 is connected with one end of a resistor R4 and the base electrode of a triode VT2 through a resistor R3, the other end of the resistor R4 is connected with the emitter electrode of a triode VT2 through a resistor R5 to be +10V power supply, the collector electrode of the triode VT2 is connected with one end of the resistor R6 and one end of an inductor L1, the other end of the resistor R6 is connected with the emitter electrode, the other end of the capacitor C2 is grounded; the double-path early warning circuit comprises an acousto-optic warning circuit and a computer terminal warning circuit, and the input ends of the acousto-optic warning circuit and the computer terminal warning circuit are connected with the output end of the double-limit comparison circuit.
Further, the double-limit comparison circuit comprises operational amplifiers AR1 and AR2, wherein an inverting input end of the operational amplifier AR1 and a non-inverting input end of the operational amplifier AR2 are connected with the other end of the inductor L1, a non-inverting input end of the operational amplifier AR1 is connected with one end of the resistor R7 and contacts 1 and 2 of the rheostat RP1, the other end of the resistor R7 is connected with a +10V power supply and is grounded through the capacitor C3, and the contact 3 of the rheostat RP1 is connected with an inverting input end of the operational amplifier AR2 and is grounded through the resistor R8.
Further, the audible and visual alarm circuit comprises a resistor R9, one end of the resistor R9 is connected with output ends of the operational amplifiers AR1 and AR2, the other end of the resistor R9 is connected with a cathode of a voltage stabilizing diode DZ1, an anode of the voltage stabilizing diode DZ1 is connected with a grid electrode of a MOS tube Q1, a drain electrode of the MOS tube Q1 is connected with a +24V power supply, a source electrode of the MOS tube Q1 is connected with one ends of the resistors R10 and R11, the other end of the resistor R10 is grounded through a warning light LED1, and the other end of the resistor R11 is grounded through a buzzer LS 1.
Further, the computer terminal alarm circuit comprises an operational amplifier AR3, the in-phase output end of the operational amplifier AR3 is connected with the output ends of the operational amplifiers AR1 and AR2, the reverse-phase input end of the operational amplifier AR3 is connected with the output end of the operational amplifier AR3 through a resistor R12 and a capacitor C4 which are connected in parallel, and the output end of the operational amplifier AR3 is connected with a liquid level signal acquisition port of the computer.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a design liquid level monitoring circuit carries out the detection processing to the liquid level of the concentrate in the liquid tank, and the output signal of liquid level monitoring circuit sends into two limit comparison circuit and carries out two-way comparison output, and the output signal of two limit comparison circuit drives acousto-optic warning circuit and computer terminal alarm circuit work as control signal, in time informs the staff to overhaul when the concentrate leaks, and the detection is in time effective, and degree of automation is high, has fine practical value and development value;
2. the signal of the output signal of the infrared liquid level sensor J1 after RC filtering is sent into a combined tube formed by triodes VT1 and VT2 for signal amplification, so that the amplification efficiency is effectively improved, the amplified signal is accurately filtered by an LC filter, the high-frequency clutter interference caused by external light to the infrared liquid level sensor J1 is eliminated, and the liquid level detection accuracy is effectively improved;
3. the output signal of the double-limit comparison circuit is used as a control signal to drive the sound-light alarm circuit and the computer terminal alarm circuit to work, when the concentrated solution leaks, the double-limit comparison circuit outputs a high level signal, a warning lamp LED1 and a buzzer LS1 in the sound-light alarm circuit send out sound-light alarm signals to inform underground workers of timely maintenance, the liquid level signal acquisition of the computer is abnormally increased to send out alarm information and inform the underground computer terminal workers of deploying and maintaining work, thereby forming aboveground and underground double-path early warning, and greatly improving the effectiveness of the early warning.
Drawings
Fig. 1 is a block diagram of the system of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects 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 1 to 2. 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 concentrate is hydraulic pressure monitored control system in pit, includes liquid level monitoring circuit, two limit comparison circuit and two-way early warning circuit, and liquid level monitoring circuit is including setting up the infrared level sensor J1 at liquid tank top, and infrared level sensor J1 is used for detecting the liquid level of the inside concentrate of liquid tank to convert to the analog signal output with the liquid level height directly proportional, adopt the model to be FS-IR 32A's infrared sensor during concrete use.
The output end of the infrared liquid level sensor J1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with one end of a resistor R2 and one end of a capacitor C1, the other end of the capacitor C1 is grounded, the other end of the resistor R2 is connected with the base of a triode VT1, the collector of a triode VT1 is connected with one end of a resistor R4 and the base of a triode VT2 through a resistor R3, the other end of a resistor R4 and the emitter of the triode VT2 are connected with a +10V power supply through a resistor R5, the collector of a triode VT2 is connected with one end of a resistor R6 and one end of an inductor L1, the other end of the resistor R6 and the emitter of a triode VT1 are grounded in parallel, the other end of the inductor L1 is connected with one end. The output signal of the infrared liquid level sensor J1 is low-pass filtered by an RC filter formed by a resistor R1 and a capacitor C1. Because the output signal intensity of the infrared liquid level sensor J1 is weak and needs to be reinforced, the signal after RC filtration is sent into a combined tube formed by the triodes VT1 and VT2 for signal amplification, thereby effectively improving the amplification efficiency. The output signal of the combined tube is sent into an LC filter formed by an inductor L1 and a capacitor C2 for accurate filtering, high-frequency clutter interference caused by external light to the infrared liquid level sensor J1 is eliminated, and the accuracy of liquid level detection is effectively improved.
The output signal of the liquid level monitoring circuit is sent into a double-limit comparison circuit for bidirectional comparison and output, the double-limit comparison circuit comprises an operational amplifier AR1 and an operational amplifier AR2, the inverting input end of the operational amplifier AR1 and the non-inverting input end of the operational amplifier AR2 are connected with the other end of an inductor L1, the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R7 and contacts 1 and 2 of a rheostat RP1, the other end of the resistor R7 is connected with a +10V power supply and is grounded through a capacitor C3, and a contact 3 of the rheostat RP1 is connected with the inverting input end of the operational amplifier AR2 and is grounded through a resistor. Wherein, the operational amplifiers AR1, AR2 form a window comparator, the resistors R7, R8 and the rheostat RP1 divide the +10V voltage into two potential values with different magnitudes by utilizing a voltage division principle and input the two potential values into the window comparator to form a threshold voltage of the window comparator, the two potential values respectively correspond to the upper limit and the lower limit of the safety liquid level preset by the liquid tank, namely when the concentrated liquid in the liquid tank is in the safety liquid level range, the corresponding potential value of the output signal of the infrared liquid level sensor J1 is in the threshold voltage range when the output signal is input into the window comparator, and the operational amplifiers AR1, AR2 output low level signals by utilizing the window comparator principle; and conversely, when the concentrated liquid in the liquid tank is not in the safe liquid level range, namely the concentrated liquid leaks, the potential value of the output signal of the liquid level monitoring circuit exceeds the threshold voltage range, and the operational amplifiers AR1 and AR2 output high-level signals.
The double-path early warning circuit comprises an acousto-optic warning circuit and a computer terminal warning circuit, and the input ends of the acousto-optic warning circuit and the computer terminal warning circuit are connected with the output end of the double-limit comparison circuit.
The acousto-optic alarm circuit comprises a resistor R9, one end of the resistor R9 is connected with the output ends of an operational amplifier AR1 and an AR2, the other end of the resistor R9 is connected with the cathode of a voltage stabilizing diode DZ1, the anode of the voltage stabilizing diode DZ1 is connected with the grid electrode of a MOS tube Q1, the drain electrode of the MOS tube Q1 is connected with a +24V power supply, the source electrode of the MOS tube Q1 is connected with one ends of the resistors R10 and R11, the other end of the resistor R10 is grounded through a warning lamp LED1, and the other end of the resistor R11 is grounded through a buzzer LS 1.
The computer terminal alarm circuit comprises an operational amplifier AR3, wherein the in-phase output end of the operational amplifier AR3 is connected with the output ends of the operational amplifiers AR1 and AR2, the reverse-phase input end of the operational amplifier AR3 is connected with the output end of the operational amplifier AR3 through a resistor R12 and a capacitor C4 which are connected in parallel, and the output end of the operational amplifier AR3 is connected with a liquid level signal acquisition port of a computer. The operational amplifier AR3 is used as a voltage follower to isolate and output the output signal of the double-limit comparison circuit, and plays roles of buffering and stabilizing the liquid level signal acquisition of the computer.
The output signal of the double-limit comparison circuit is used as a control signal to drive the sound-light alarm circuit and the computer terminal alarm circuit to work. When the concentrated solution does not leak, the double-limit comparison circuit outputs a low level signal, the grid of the MOS tube Q1 in the audible and visual alarm circuit is cut off when power is lost, and the liquid level signal acquisition of the computer in the computer terminal alarm circuit is in a normal value; when the concentrated solution leaks, the double-limit comparison circuit outputs a high level signal, the grid of an MOS (metal oxide semiconductor) tube Q1 in the audible and visual alarm circuit is powered on, so that the warning lamp LED1 and the buzzer LS1 are powered on simultaneously, an audible and visual alarm signal is sent to inform underground workers of timely maintenance, the liquid level signal acquisition of the computer is abnormally increased, alarm information is sent, and the underground computer terminal workers are informed of deploying and maintaining work, so that the underground and aboveground double-path early warning is formed, and the effectiveness of the early warning is greatly improved.
In summary, the utility model has the advantages that the infrared liquid level sensor J1 is arranged to detect the liquid level of the concentrated liquid in the liquid tank in real time, the signal after RC filtration is sent into the combined pipe formed by the triodes VT1 and VT2 for signal amplification, the amplification efficiency is effectively improved, then the LC filter is used for accurately filtering the amplified signals, high-frequency clutter interference caused by external light to the infrared liquid level sensor J1 is eliminated, the accuracy of liquid level detection is effectively improved, the output signal of the liquid level monitoring circuit is sent into a double-limit comparison circuit for bidirectional comparison and output, the output signal of the double-limit comparison circuit is used as a control signal to drive an acousto-optic alarm circuit and a computer terminal alarm circuit to work, the concentrated solution leakage detection device has the advantages that workers are informed to overhaul in time when the concentrated solution leakage occurs, the detection is timely and effective, the automation degree is high, and the concentrated solution leakage detection device has good practical value and development value.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (4)
1. The utility model provides a concentrate hydraulic monitoring system in pit which characterized in that: comprises a liquid level monitoring circuit, a double-limit comparison circuit and a double-circuit early warning circuit, wherein the liquid level monitoring circuit comprises an infrared liquid level sensor J1 arranged at the top of a liquid tank, the output end of the infrared liquid level sensor J1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with a resistor R2, one end of a capacitor C1, the other end of a capacitor C1 is grounded, the other end of a resistor R2 is connected with a base electrode of a triode VT1, a collector electrode of a triode VT1 is connected with one end of a resistor R4 and a base electrode of a triode VT2 through a resistor R3, the other end of a resistor R4 and an emitter electrode of a triode VT2 are connected with a +10V power supply through a resistor R5, a collector electrode of a triode VT2 is connected with one end of a resistor R6 and one end of an inductor L1, the other end of the resistor R6 is grounded in parallel with an emitter electrode of a triode VT1, the other end of the inductor L1 is connected with one end of a capacitor C2 and an input end of; the double-path early warning circuit comprises an acousto-optic warning circuit and a computer terminal warning circuit, and the input ends of the acousto-optic warning circuit and the computer terminal warning circuit are connected with the output end of the double-limit comparison circuit.
2. The concentrate downhole hydraulic monitoring system of claim 1, wherein: the double-limit comparison circuit comprises operational amplifiers AR1 and AR2, wherein the inverting input end of the operational amplifier AR1 and the non-inverting input end of the operational amplifier AR2 are connected with the other end of the inductor L1, the non-inverting input end of the operational amplifier AR1 is connected with one end of the resistor R7 and the contacts 1 and 2 of the rheostat RP1, the other end of the resistor R7 is connected with a +10V power supply and is grounded through the capacitor C3, and the contact 3 of the rheostat RP1 is connected with the inverting input end of the operational amplifier AR2 and is grounded through the resistor R8.
3. The concentrate downhole hydraulic monitoring system of claim 2, wherein: the acousto-optic alarm circuit comprises a resistor R9, one end of a resistor R9 is connected with output ends of an operational amplifier AR1 and an AR2, the other end of a resistor R9 is connected with a cathode of a voltage stabilizing diode DZ1, an anode of the voltage stabilizing diode DZ1 is connected with a grid electrode of a MOS tube Q1, a drain electrode of the MOS tube Q1 is connected with a +24V power supply, a source electrode of the MOS tube Q1 is connected with one ends of resistors R10 and R11, the other end of the resistor R10 is grounded through a warning lamp LED1, and the other end of a resistor R11 is grounded through a buzzer LS 1.
4. A concentrate downhole hydraulic monitoring system according to claim 3, wherein: the computer terminal alarm circuit comprises an operational amplifier AR3, wherein the in-phase output end of the operational amplifier AR3 is connected with the output ends of the operational amplifiers AR1 and AR2, the reverse-phase input end of the operational amplifier AR3 is connected with the output end of the operational amplifier AR3 through a resistor R12 and a capacitor C4 which are connected in parallel, and the output end of the operational amplifier AR3 is connected with a liquid level signal acquisition port of a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920713969.1U CN210217789U (en) | 2019-05-18 | 2019-05-18 | Underground concentrated solution hydraulic monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920713969.1U CN210217789U (en) | 2019-05-18 | 2019-05-18 | Underground concentrated solution hydraulic monitoring system |
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| CN210217789U true CN210217789U (en) | 2020-03-31 |
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| CN201920713969.1U Active CN210217789U (en) | 2019-05-18 | 2019-05-18 | Underground concentrated solution hydraulic monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606824A (en) * | 2021-09-17 | 2021-11-05 | 安徽江淮汽车集团股份有限公司 | Refrigerant receiver drier |
| CN114109505A (en) * | 2021-11-19 | 2022-03-01 | 中铁二十二局集团第四工程有限公司 | Tunnel catastrophe prediction system |
-
2019
- 2019-05-18 CN CN201920713969.1U patent/CN210217789U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606824A (en) * | 2021-09-17 | 2021-11-05 | 安徽江淮汽车集团股份有限公司 | Refrigerant receiver drier |
| CN113606824B (en) * | 2021-09-17 | 2022-04-26 | 安徽江淮汽车集团股份有限公司 | Refrigerant receiver drier |
| CN114109505A (en) * | 2021-11-19 | 2022-03-01 | 中铁二十二局集团第四工程有限公司 | Tunnel catastrophe prediction system |
| CN114109505B (en) * | 2021-11-19 | 2023-07-04 | 中铁二十二局集团第四工程有限公司 | Tunnel catastrophe prediction system |
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