CN107422667A - A kind of low-voltage variation system of sewage-treatment plant - Google Patents
A kind of low-voltage variation system of sewage-treatment plant Download PDFInfo
- Publication number
- CN107422667A CN107422667A CN201710473756.1A CN201710473756A CN107422667A CN 107422667 A CN107422667 A CN 107422667A CN 201710473756 A CN201710473756 A CN 201710473756A CN 107422667 A CN107422667 A CN 107422667A
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- China
- Prior art keywords
- low
- hydraulic pump
- sewage
- pole plate
- pressure hydraulic
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
Abstract
The present invention relates to a kind of low-voltage variation system of sewage-treatment plant; mainly solves the technical problem that feature is few, reliability is low present in prior art; the present invention is by using the non-conductor pipeline including being set before water-delivery pump; the non-conductor pipeline front end conducting connection aqueduct; rear end conducting connection high-pressure hydraulic pump water inlet, the high-pressure hydraulic pump water inlet are provided with into switch gate；The upper end of the non-conductor pipeline is provided with the first pole plate, and lower end is provided with the second pole plate；First pole plate and the second pole plate are connected to capacitance detecting device, and the capacitance detecting device is connected to micro treatmenting device, the micro treatmenting device and high-pressure hydraulic pump control terminal, remote server and enter to switch gate and are connected；The high-pressure hydraulic pump control terminal controls high-pressure hydraulic pump running status, and switch gate is used for the open and-shut mode technical scheme for controlling high-pressure hydraulic pump water inlet, the problem is preferably resolved, available in the industrial production of sewage-treatment plant.
Description
Technical field
The present invention relates to environmental protection machinery, a kind of low-voltage variation system of sewage-treatment plant is related specifically to.
Background technology
Sewage disposal can use high-pressure hydraulic pump, and its performance and stability directly determine the performance and stability of whole system.
Low-voltage variation system is arranged on before high-pressure pump, for protecting high-pressure pump to be closed in time in the case where front end is anhydrous, pressure is small
High-pressure pump, high-pressure pump idle running damage is avoided, protect high-pressure pump.
Existing low-voltage variation system typically uses pressure switch, and it includes pressure sensor, by pressure sensor
Control valve carries out shut-off operation, simultaneously closes off high-pressure pump after the pressure value of detection carries out sampling processing comparison.But it is present
Pressure sensor makes high-pressure pump frequent start-stop or sends mistake to refer to water contact reliability is not high, function is few technical problem
Order.Therefore it provides a kind of multiple functional, low-voltage variation system for sewage-treatment plant that reliability is high is with regard to necessary.
The content of the invention
The technical problems to be solved by the invention are that feature present in prior art is few, the low problem of reliability.There is provided
A kind of low-voltage variation system of new sewage-treatment plant, the low-voltage variation system of the sewage-treatment plant have reliability it is high,
The characteristics of feature is complete, easy to use.
In order to solve the above technical problems, the technical scheme used is as follows：
A kind of low-voltage variation system of sewage-treatment plant, the low-voltage variation system include what is set before water-delivery pump
Non-conductor pipeline, the non-conductor pipeline front end conducting connection aqueduct, rear end conducting connection high-pressure hydraulic pump water inlet are described
High-pressure hydraulic pump water inlet is provided with into switch gate；The upper end of the non-conductor pipeline is provided with the first pole plate, and lower end is provided with the second pole
Plate；First pole plate and the second pole plate are connected to capacitance detecting device, and the capacitance detecting device is connected to micro treatmenting device,
The micro treatmenting device and high-pressure hydraulic pump control terminal, remote server and enter to switch gate and be connected；The high-pressure hydraulic pump control
Hold for controlling high-pressure hydraulic pump running status, the switch gate is used for the open and-shut mode for controlling high-pressure hydraulic pump water inlet, described
Low-voltage variation system also includes the remote server being connected with micro treatmenting device by communication module, and the remote server is used
In Back end data processing.
The operation principle of the present invention：A certain set of dielectrics into capacitor certain voltage effect under obtained by capacitance
Ratios of the Cx with an equal amount of medium for the capacitance Co of the capacitor of vacuum, it is referred to as the relative dielectric of the dielectric substance
Constant.
Wherein, electric capacity when Cx-capacitor two is full of medium；Electric capacity when C-capacitor two is vacuum；ε-capacitance
Increased multiple, i.e. relative dielectric constant.The size of dielectric constant represents the journey that medium Space-charge interaction weakens
Degree.When high-pressure pump front end water shortage or when breaking down, the water-carrying capacity in non-conductor pipeline can change, and not filled equivalent to medium
Full two blocks of metals.Both sides set two blocks of metals above and below non-conductor pipeline, by between capacitance detecting device two blocks of metals of measurement
Electric capacity, the low-pressure failure under exsiccosis can be predicted by the change of electric capacity.Micro treatmenting device according to testing result,
Micro treatmenting device can output control signal control input switch valve turned off while control high-pressure pump to be stopped.To expand
It is convenient to open up feature, reliability and system, the present invention sets wireless communication module, the wireless communication module and data center or
User terminal is connected by wireless terminal, user by the control software in terminal can real time inspection high-pressure pump front end press in real time
Force value, the open and-shut mode for changing pressure threshold value, remote control high-pressure pump and high-pressure pump front end input switch valve.Meanwhile work as generation
During failure, alarm signal can be sent in real time by one or more service terminals by wireless network, avoided because business is whole
End personnel do not have found that alarm signal causes damage in time.The present invention can overcome wired layout to bring by wirelessly laying mode
Low space utilization, the unfavorable factor such as line-to-line crosstalk.
In above-mentioned technical proposal, for optimization, further, the capacitance detecting device includes voltage-stabilized power supply, high-frequency signal
Transmitter, it is connected with positioning voltage table CB1 in turn between the output of the high-frequency signal transmitter first via and the output of the second tunnel, electricity
Feel L1, electric capacity C1 and Q threshold voltage table CB2, high-frequency signal transmitter first via output first pole plate of connection, the output of the second tunnel
Connect the second pole plate.
Further, the capacitance detecting device also includes setting and the wideband low-resistance partial pressure between electric capacity C1 and inductance L1
Device, the wideband low-resistance divider include the resistance R1 of series connection and resistance R2, the resistance R1 and resistance R2 common port and electricity
Feel L1 connections, the resistance R2 other end is connected with earth terminal.
Further, the low-voltage variation system also includes the movement being connected with remote service end by wireless communication apparatus
Terminal, the mobile terminal are used for non-at-scene and remote service end and carry out data interaction and operating interactive, the wireless telecommunications dress
Put including wireless signal transmitter module and wireless signal receiving module.
Further, the wireless signal transmitter module and wireless signal receiving module include signal processing module, with
The radio-frequency antenna of signal processing module connection, the radio-frequency antenna is GPS/WIFI dual-band antennas.
Further, the high-pressure hydraulic pump controller is normally closed state controller, and normally closed state corresponds to high-pressure hydraulic pump and closes state.
Further, the voltage-stabilized power supply includes input circuit, the current rectifying and wave filtering circuit being connected with input circuit, with rectification
First mu balanced circuit of filter circuit connection, the switch being connected with the first mu balanced circuit, the switch controlled connection is in microprocessor
Device, output is sequentially connected lithium ion battery, the second mu balanced circuit to switch all the way, and another way output connection output circuit is described
Second mu balanced circuit is also connected with output circuit.
Further, the switch is high power switch.
Further, first pole plate and the second pole 2 are copper coin.
It is the dielectric constant tested by capacitance detecting device between equivalent first and second with resistance, logical in the present invention
Algorithm process is crossed, the number of the water of non-conductor pipeline enclosure can be obtained, and then low-pressure feelings caused by being capable of detecting when water shortage
Condition, high-pressure hydraulic pump water inlet is simultaneously closed off so as to control high-pressure hydraulic pump to be stopped.The present invention also uses GPS/WIFI dual networks
Pattern, the terminal that is connected and mobile terminal, the alarm that carries out that can be one-to-many inform and control operation, and by being weighed in software
Limit is set, and can assign different terminals different operating rights.By additionally setting hand in high-pressure hydraulic pump water inlet controlled valve
Dynamic control model, MANUAL CONTROL mode include remote manual control, electronics corresponding modes, site machinery control model, by excellent
Change, it is possible to increase the reliability of system, front end shut-off protection can not be carried out from hardware after avoiding systemic breakdown.It is corresponding, be
The high-pressure pump turned off will not error starting, therefore the normally off of high pressure pump controller is corresponded to the closed mode of high-pressure pump.
In addition, the power module as system power supply, in order to prevent external power source failure, by setting standby lithium ion in power module
Battery is used as internal emergency power unit, it is possible to increase the reliability and stability of system.
Beneficial effects of the present invention：
Effect one, enhance the feature of low-voltage variation system；
Effect two, enhance the reliability of low-voltage variation system；
Effect three, it is laid out by wireless type, improves space availability ratio, breaches limitations；
Effect four, simplify the flow of control sewage-treatment plant；
Effect is without the initiative method using test space dielectric constant realizes the detection low-pressure event of oncontacting water mode
Barrier situation.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1, the low-voltage variation system schematic for sewage-treatment plant.
Fig. 2, capacitance detecting device schematic diagram in embodiment 1.
Fig. 3, capacitance detecting device schematic diagram in embodiment 2.
Fig. 4, power module form schematic diagram.
Fig. 5, current rectifying and wave filtering circuit circuit diagram.
In accompanying drawing,
The pole plates of 1- first, the pole plates of 2- second, 3- non-conductor pipelines, 4- entry switch locks, 5- high-pressure hydraulic pump control terminals, 6- are high
Water pump water inlet.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
Such as Fig. 1, a kind of low-voltage variation system of sewage-treatment plant, the low-voltage variation system is included before being located at water-delivery pump
The non-conductor pipeline 3 of setting, the front end of the non-conductor pipeline 3 conducting connection aqueduct, rear end conducting connection water under high pressure are pumped into
The mouth of a river 6, the high-pressure hydraulic pump water inlet 6 are provided with into switch gate 4；The upper end of the non-conductor pipeline 3 is provided with the first pole plate 1,
Lower end is provided with the second pole plate 2；The pole plate 2 of first pole plate 1 and second is connected to capacitance detecting device, the capacitance detecting device
It is connected to micro treatmenting device, the micro treatmenting device and high-pressure hydraulic pump control terminal 5, remote server and enters to switch gate 4 and connect
Connect；The high-pressure hydraulic pump control terminal 5 is used to control high-pressure hydraulic pump running status, and the switch gate 4 is used to control high-pressure hydraulic pump
The open and-shut mode of water inlet 6.The low-voltage variation system also includes the shifting being connected with remote service end by wireless communication apparatus
Dynamic terminal, the mobile terminal are used for non-at-scene and remote service end and carry out data interaction and operating interactive, the wireless telecommunications
Device includes wireless signal transmitter module and wireless signal receiving module.The wireless signal transmitter module and wireless signal receive
Module includes signal processing module, the radio-frequency antenna being connected with signal processing module, and the radio-frequency antenna is GPS/WIFI double
Band antenna.The low-voltage variation system also includes the remote server being connected with micro treatmenting device by communication module, institute
Remote server is stated for Back end data processing.Remote server includes memory, processor, display device.Memory is used
In storage post processor, according toDielectric constant is calculated, and calculates pressure.Processor is used to perform
Post processor, display device are used to show real-time status.
The workflow of the present invention：Cause the situation of water shortage when breaking down occurs in aqueduct, hydraulic pressure will reduce, non-
The space at conductor pipeline position will not be filled full by water.Now, electric capacity equivalent in the first pole plate and the second pole plate will occur
Change, cause dielectric constant values to change.Using capacitance detecting device, the threshold values tested the changing value and pre-set is carried out
Compare.When micro treatmenting device comparative result falls in low pressure range, micro treatmenting device controls high-pressure hydraulic pump to be stopped simultaneously,
High-pressure hydraulic pump water inlet breaker is closed.And alarm signal is sent to long-range clothes by micro treatmenting device by wireless communication module
Business device end, remote server include but is not limited to a remote server.After remote server receives alarm signal,
Being capable of the progress subsequent operation of remote control micro treatmenting device.In addition, remote server can also actively send control signal, control
Micro treatmenting device processed carries out associative operation, including the operation such as shut-off high-pressure hydraulic pump working condition.
Such as Fig. 2, the capacitance detecting device includes voltage-stabilized power supply, high-frequency signal transmitter, the high-frequency signal transmitter
The first via export and the output of the second tunnel between be connected with positioning voltage table CB1, inductance L1, electric capacity C1 and Q threshold voltage table in turn
CB2, high-frequency signal transmitter first via output first pole plate 1 of connection, the second tunnel output the second pole plate 2 of connection.It is by steady
Voltage source, HF signal generator, positioning voltage table CBl, Q threshold voltage table CB2, wideband low-resistance divider and standard adjustable electric
Container etc. forms.Operation principle is as follows：High frequency letter leads the output signal of generator, is fed signal by low-impedance coupling coil
To wideband Low ESR divider.The regulation of amplitude output signal is realized by controlling the screen grid voltage of oscillator.Work as tune
Section positioning voltage table CBl refers to when in position line, and Ri both ends obtain about l0mV voltage (Vi).When Vi is adjusted in certain numerical value
After (10mV), measurement Vc voltmeter CB2 can be made directly with Q value scales.By calculating dielectric constant：
Wherein, the capacitance under C1-standard state；The capacitance of C2-sample test；The pole plates of d-first and the second pole
The distance between plate (cm)；
The plate of the pole plates of Φ-first and the second pole plate grows (cm)；β-correction value is 11.3 times；
In order to prevent high-pressure hydraulic pump in halted state because the failure of controller is opened suddenly, heretofore described high-pressure hydraulic pump
Controller 5 is normally closed state controller, and normally closed state corresponds to high-pressure hydraulic pump and closes state.
Such as Fig. 4, in order to improve the applicable elements of capacitance detecting device, usability is improved.The electricity of voltage stabilizing described in the present embodiment
Source additionally sets stand-by power supply, and the voltage-stabilized power supply includes input circuit, the current rectifying and wave filtering circuit being connected with input circuit, and whole
The first mu balanced circuit of filter circuit connection is flowed, the switch being connected with the first mu balanced circuit, the switch controlled connection is in Wei Chu
Device is managed, output is sequentially connected lithium ion battery, the second mu balanced circuit, another way output connection output circuit, institute to switch all the way
The second mu balanced circuit is stated also to be connected with output circuit.Current rectifying and wave filtering circuit such as Fig. 5, including electric capacity C2, C3, diode D1-D4, become
Depressor T1.
Switch as high power switch, it is possible to increase the power capacity of test device, improve test scope.
The pole plate 2 of first pole plate 1 and second is copper coin, using copper pole plate, can utilize the good of copper material
Conductor performance and heat dispersion, improve system reliability.
Embodiment 2,
The present embodiment optimizes capacitance detecting device on the basis of embodiment 1
Such as Fig. 3, the capacitance detecting device also includes setting and the wideband low-resistance divider between electric capacity C1 and inductance L1,
The wideband low-resistance divider includes the resistance R1 of series connection and resistance R2, the resistance R1 and resistance R2 common port and inductance L1
Connection, the resistance R2 other end are connected with earth terminal.
In embodiment 1, if direct measurement Vi must increase a large amount of electronic building bricks and can just measure high frequency low voltage signal,
Cost is higher.It then can use common voltage expression to arrive same purpose after using wideband low-resistance divider in this implementation, can take to
Reduce the effect of cost.
Although the illustrative embodiment of the present invention is described above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the scope of embodiment, to the common skill of the art
For art personnel, as long as long as various change in the spirit and scope of the invention that appended claim limits and determines, one
The innovation and creation using present inventive concept are cut in the row of protection.
Claims (9)
- A kind of 1. low-voltage variation system of sewage-treatment plant, it is characterised in that：The low-voltage variation system includes being located at water delivery The non-conductor pipeline (3) set before pump, non-conductor pipeline (3) the front end conducting connection aqueduct, rear end conducting connection are high Water pump water inlet (6), the high-pressure hydraulic pump water inlet (6) are provided with into switch gate (4)；The non-conductor pipeline (3) it is upper End is provided with the first pole plate (1), and lower end is provided with the second pole plate (2)；First pole plate (1) and the second pole plate (2) are connected to electric capacity Detection means, the capacitance detecting device are connected to micro treatmenting device, the micro treatmenting device and high-pressure hydraulic pump control terminal (5), Remote server and enter to switch gate (4) connection；The high-pressure hydraulic pump control terminal (5) is used to control high-pressure hydraulic pump to run shape State, the switch gate (4) are used for the open and-shut mode for controlling high-pressure hydraulic pump water inlet (6), and the low-voltage variation system also includes The remote server being connected with micro treatmenting device by communication module, the remote server is for Back end data processing.
- 2. the low-voltage variation system of sewage-treatment plant according to claim 1, it is characterised in that：The capacitance detecting dress Put including voltage-stabilized power supply, high-frequency signal transmitter, between the output of the high-frequency signal transmitter first via and the output of the second tunnel according to Secondary to be connected with positioning voltage table CB1, inductance L1, electric capacity C1 and Q threshold voltage table CB2, the high-frequency signal transmitter first via is defeated Go out the first pole plate of connection (1), the second tunnel output the second pole plate of connection (2).
- 3. the low-voltage variation system of sewage-treatment plant according to claim 1, it is characterised in that：The capacitance detecting dress Putting also includes setting and the wideband low-resistance divider between electric capacity C1 and inductance L1, and the wideband low-resistance divider includes series connection Resistance R1 and resistance R2, the common port of the resistance R1 and resistance R2 are connected with inductance L1, resistance the R2 other end and earth terminal Connection.
- 4. according to the low-voltage variation system of any described sewage-treatment plants of claim 1-3, it is characterised in that：The low pressure Protection system also includes the mobile terminal being connected with remote service end by wireless communication apparatus, and the mobile terminal is used for non-existing Field carries out data interaction and operating interactive, the wireless communication apparatus with remote service end includes wireless signal transmitter module and nothing Line signal receiving module.
- 5. the low-voltage variation system of sewage-treatment plant according to claim 4, it is characterised in that：The wireless signal hair Penetrating module and wireless signal receiving module includes signal processing module, and the radio-frequency antenna being connected with signal processing module is described Radio-frequency antenna is GPS/WIFI dual-band antennas.
- 6. the low-voltage variation system of sewage-treatment plant according to claim 1, it is characterised in that：The high-pressure hydraulic pump control Device (5) processed is normally closed state controller, and the normally closed state of the normally closed state controller correspondingly switchs gate (4) and closes state.
- 7. the low-voltage variation system of sewage-treatment plant according to claim 1, it is characterised in that：The voltage-stabilized power supply bag Input circuit is included, the current rectifying and wave filtering circuit being connected with input circuit, the first mu balanced circuit being connected with current rectifying and wave filtering circuit, with The switch of one mu balanced circuit connection, the switch controlled connection is in micro treatmenting device, and output is sequentially connected lithium ion to switch all the way Battery, the second mu balanced circuit, another way output connection output circuit, second mu balanced circuit are also connected with output circuit.
- 8. the low-voltage variation system of sewage-treatment plant according to claim 7, it is characterised in that：The switch is big work( Rate switchs.
- 9. the low-voltage variation system of sewage-treatment plant according to claim 1, it is characterised in that：First pole plate (1) and the second pole plate (2) is copper coin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473756.1A CN107422667A (en) | 2017-06-21 | 2017-06-21 | A kind of low-voltage variation system of sewage-treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473756.1A CN107422667A (en) | 2017-06-21 | 2017-06-21 | A kind of low-voltage variation system of sewage-treatment plant |
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| Publication Number | Publication Date |
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| CN107422667A true CN107422667A (en) | 2017-12-01 |
Family
ID=60426202
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710473756.1A Withdrawn CN107422667A (en) | 2017-06-21 | 2017-06-21 | A kind of low-voltage variation system of sewage-treatment plant |
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Cited By (2)
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| CN110261727A (en) * | 2019-05-09 | 2019-09-20 | 北京信息科技大学 | A kind of fault detector and its working method |
| CN116562580A (en) * | 2023-05-19 | 2023-08-08 | 安徽鑫纪源科技有限公司 | Waste water and waste gas treatment system and method for lithium carbonate production workshop |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116562580A (en) * | 2023-05-19 | 2023-08-08 | 安徽鑫纪源科技有限公司 | Waste water and waste gas treatment system and method for lithium carbonate production workshop |
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Application publication date: 20171201 |
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