CN206054271U - Emulsion pump constant-pressure control device - Google Patents
Emulsion pump constant-pressure control device Download PDFInfo
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- CN206054271U CN206054271U CN201621073416.7U CN201621073416U CN206054271U CN 206054271 U CN206054271 U CN 206054271U CN 201621073416 U CN201621073416 U CN 201621073416U CN 206054271 U CN206054271 U CN 206054271U
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- frequency conversion
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Abstract
This utility model provides emulsion pump constant-pressure control device, belong to the electric power supply control system field of underground coal mine emulsion pump, including pressure transducer, constant pressure frequency conversion device and at least two controlled motors, the signal output part of the pressure transducer is connected with the control signal input of the constant pressure frequency conversion device, the power output end of the constant pressure frequency conversion device is connected with the power input of the controlled motor, at least two controlled motor can be operated simultaneously, also individually can be operated.The utility model proposes a kind of new emulsion pump Isobarically Control converter, had both met live constant pressure frequency conversion feed flow, the control of power frequency emergency operating is provided again, be to realize that emulsion power pack is safe efficient, energy-saving run provides safeguard.
Description
Technical field
This utility model belongs to the electric power supply control system field of underground coal mine emulsion pump, is related to emulsion pump constant pressure control
Device processed.
Background technology
Emulsion pump is used for coal-face, as the necessary equipment of mine, is underground coal mine supporting operation " external poured list
The important motivity Hydraulic Elements of the special liquid-injection equipment of body hydraulic prop " and " hydraulic support ", and supporting operation repair and replacement
Indispensable instrument, emulsion pump provides emulsion for hydraulic support, and operation principle is done by the piston that rotarily drives of bent axle
Move back and forth, realize imbibition and discharge opeing, the line of oils that emulsion adds 5% by 95% water into.
It is at present most to be controlled using simple switch, emulsion delivery outlet pressure value is not carried out detecting, feed back and
Adjust, due to being provided without VFC, energy consumption is larger, and efficiency is low, and cannot realize that emulsion pump system is maintained in real time and want
In the pressure value asked, and then can cause the control of fully-mechanized mining working associated power equipment not precisely, safety coefficient is reduced.
Utility model content
Problem to be solved in the utility model is to provide one kind by detecting delivery outlet pressure value, carries out PID arithmetic, automatically
Output is adjusted, the emulsion press pump constant-pressure control device for automatically controlling is realized.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：Emulsion pump is filled with Isobarically Control
Put, including pressure transducer, constant pressure frequency conversion device and at least two controlled motors, the signal output part of the pressure transducer and institute
State the control signal input connection of constant pressure frequency conversion device, the power output end of the constant pressure frequency conversion device and the electricity of the controlled motor
Source input connection, at least two controlled motor can be operated simultaneously, also individually can be operated.
Further, the equal variable ratio frequency changer of the controlled motor or power frequency mode work.
Further, the constant pressure frequency conversion device includes disconnecting switch, converter movement, power frequency catalyst and frequency conversion contact
Device, the disconnecting switch control the converter movement and power frequency catalyst, each power frequency catalyst and a change
Frequency catalyst is supporting to be set to one group, each controlled motor by one assemble set arrange the power frequency catalyst with it is described
The control operating of frequency conversion catalyst, synchronization, the frequency conversion catalyst of the different controlled motors can not adhesive simultaneously.
Further, the constant pressure frequency conversion device also includes work protection board and master controller, the work protection board collection
Pressure data is simultaneously delivered to the master controller, the adhesive of power frequency catalyst and frequency conversion catalyst described in the main controller controls
Or disconnect.
Further, the master controller is led to by the communication mode and frequency conversion movement of CAN, Modbus or network interface
Letter, the master controller are carried out with the work protection board, power frequency catalyst by the communication mode of CAN, Modbus or network interface
Communication.
Further, the pressure transducer is located at the drain pipe mouth position of the feed liquid pipeline of outside support apparatus in coal mine
Place, the leakage fluid dram of emulsion pump are connected with the feed liquid pipeline of support apparatus in coal mine.
Further, the signal code of the pressure transducer is 4-20mA.
Further, the range of the pressure transducer is 0-60MPa.
Further, the quantity of the controlled motor is two, is A pump motors and B pump motors, the A pump motors and B pumps
The equal variable ratio frequency changer of motor or power frequency mode work.
Compared with prior art, this utility model has the advantages and positive effects that：1st, this utility model arranges pressure
Sensor carries out the collection of the value of pressure, and by the PID arithmetic of constant pressure frequency conversion device, realizes the change of the rotating speed of controlled motor,
And then the purpose for automatically controlling and adjusting output is realized, a closed loop system is realized, the demand of constant pressure is met；2nd, certainly
Dynamicization control improves emulsion power pack safety, high efficiency, energy saving, it is ensured that personal safety, energy saving；3rd, control electricity
Machine can power frequency or variable frequency work, both met live constant pressure frequency conversion feed flow, and the control of power frequency emergency operating be provided again, be to realize emulsion
Pumping plant is safe efficient, energy-saving run provides safeguard；4th, work protection board and master controller are set in constant pressure frequency conversion device, work as pressure
When not in preset range, work protection board reports master controller, master controller to issue parking order, disconnects operating power frequency
Catalyst and frequency conversion catalyst, it is ensured that the safe operation of work surface.
Description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain this utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the structural representation of this utility model emulsion pump constant-pressure control device use state；
Fig. 2 is the structural representation of this utility model constant pressure frequency conversion device；
Fig. 3 is the structural representation of this utility model constant pressure frequency conversion device control system.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in this utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is
Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate
Or the device or element of hint indication with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, can be by concrete condition understanding
State concrete meaning of the term in this utility model.
Below in conjunction with the accompanying drawings specific embodiment of the utility model is elaborated.
As shown in figure 1, this utility model is emulsion pump constant-pressure control device, use cooperatively with emulsion pump, apply
In underground coal mine fully-mechanized mining working, including pressure transducer, constant pressure frequency conversion device and at least two controlled motors, pressure transducer
Signal output part is connected with the control signal input of constant pressure frequency conversion device, power output end and the controlled motor of constant pressure frequency conversion device
Power input connects, and at least two controlled motors can be operated simultaneously, also individually can be operated, it is preferable that pressure is passed
Sensor is located at the drain pipe mouth position of the feed liquid pipeline of outside support apparatus in coal mine, the leakage fluid dram and coal mine support of emulsion pump
The feed liquid pipeline of equipment is connected, and constant pressure frequency conversion device passes through pressure transducer real-time detection emulsion pump exit pressure levels, and handle
Pressure value passes to converter and work protection board, and converter is carried out by the data of data that sensor is sent and internal preset
Relatively, processed by PID calculating, and control the frequency of converter output, and then realize the adjustment of the operating frequency of controlled motor,
This controlled motor realizes the size of emulsion box output pressure value, so as to form closed loop control so that emulsion pump outlet pressure
Maintained in values always, reach the purpose of safe efficient, energy-conservation, meet the work of live fully-mechanized mining working equipment
Demand, pressure bound can be configured manually.
Preferably, the equal variable ratio frequency changer of controlled motor or power frequency mode work, when variable frequency work mode breaks down, can be certainly
The dynamic power frequency working condition for being switched to same controlled motor of correspondence, it is ensured that operation duration is carried out, and power frequency working method can be answered
It is anxious standby.
Preferably, as shown in Fig. 2 constant pressure frequency conversion device includes that disconnecting switch, converter movement, power frequency catalyst and frequency conversion connect
Tentaculum, disconnecting switch control converter movement and power frequency catalyst, each power frequency catalyst are matched somebody with somebody with a frequency conversion catalyst and are arranged
One group is set to, each controlled motor assembles power frequency catalyst and the control operating of frequency conversion catalyst that set is arranged by one, corresponds to
The power frequency catalyst of same controlled motor has automatic switching function with frequency conversion catalyst, when frequency conversion catalyst breaks down
When, automatically switch to power frequency catalyst and work on, it is ensured that the safety of production is carried out, disconnecting switch control converter movement and many
Individual power frequency catalyst, converter movement control the closed and disconnected of multiple frequency conversion catalysts, synchronization, the different control electricity
The frequency conversion catalyst of machine can not be while adhesive, disconnecting switch can be according to real work needs, and switching circuit completes frequency conversion and work
The switching of frequency different working condition.
Preferably, as shown in figure 3, constant pressure frequency conversion device also includes work protection board and master controller, work protection board collection
Pressure data is simultaneously delivered to master controller, and pressure is worked as in the adhesive or disconnection of main controller controls power frequency catalyst and frequency conversion catalyst
Power not in preset range when, work protection board reports master controller, and master controller issues parking order, disconnects operating work
Frequency catalyst and frequency conversion catalyst, it is ensured that the safe operation of work surface.
Preferably, master controller is communicated with frequency conversion movement by communication modes such as CAN, Modbus or network interfaces, in real time
Monitoring with control converter movement work, show converter movement working condition, master controller pass through CAN, Modbus or
The communication modes such as network interface are communicated with work protection board, power frequency catalyst, the work of monitoring protection board and power frequency catalyst
Make state, and control the divide-shut brake of power frequency catalyst and frequency conversion catalyst.According to different work requirements, frequency conversion, power frequency are realized
Between switching and related defencive function.
Preferably, the signal code of pressure transducer is 4-20mA, using two line structures, reduces the complexity of wiring, protects
Card signal transmission and power demands, are designed using standard, and public property is strong, reduce the operation and maintenance cost in later stage, while adopting
Standard component, also reduces the cost of whole device；It is highly preferred that the range of pressure transducer is 0-60MPa, measurement range is big,
Applied range.
Preferably, the quantity of controlled motor is two, is A pump motors and B pump motors, and A pump motors and B pump motors are variable
Frequency or power frequency mode work, and arrange two-way, you can at the same work, raising efficiency, it is also possible on the premise of breaking down at,
Another standby.
Embodiment 1：The frequency conversion of A pump motors or B pump motor frequency conversions, this is single variable mode, emulsion pump constant pressure frequency conversion device
Pressure value is gathered by pressure transducer, by pid algorithm and negative feedback computing, the output of real-time control constant pressure frequency conversion device, this
The output of constant pressure frequency conversion device realizes the frequency conversion of A pump motors or the adjustment of B pump motor rotating speeds, the frequency conversion of A pump motors or B pump motors by changing
Variable speed, changes the pressure value in control emulsion case so that the pressure of emulsion box delivery outlet maintains constant preset value model
In enclosing, real-time Automated condtrol is reached.
Embodiment 2：A pump motors power frequency+B pump frequency conversions or A pump motor frequency conversion+B pump motor power frequencies, this is that either simplex is frequently plus monotropic
Frequency pattern, emulsion pump gather pressure value by pressure transducer with constant pressure frequency conversion device, by pid algorithm and negative feedback computing,
The output of real-time control constant pressure frequency conversion device, the catalyst of power frequency pattern are output as constant magnitude of voltage, this constant pressure frequency conversion device it is defeated
Go out to control the rotating speed of controlled motor under frequency conversion state, controlled motor changes the pressure value in control emulsion case by changing rotating speed,
So that the pressure of emulsion box delivery outlet is maintained in constant values, real-time Automated condtrol is reached.
Case study on implementation 3：A pump motor power frequency patterns, B pump motor power frequencies, A pump motor power frequency+B pump motor power frequencies, this whole
For power frequency pattern, in the case where variable frequency work form all goes wrong, this is Emergency use.
Above one embodiment of the present utility model is described in detail, but the content is only of the present utility model
Preferred embodiment, it is impossible to be considered as limiting practical range of the present utility model.It is all to be made according to this utility model application range
Impartial change with improve etc., still all should belong within patent covering scope of the present utility model.
Claims (9)
1. emulsion pump constant-pressure control device, it is characterised in that：Including pressure transducer, constant pressure frequency conversion device and at least two controls
Motor processed, the signal output part of the pressure transducer are connected with the control signal input of the constant pressure frequency conversion device, the perseverance
The power output end of voltage frequency changer is connected with the power input of the controlled motor, and at least two controlled motor can be simultaneously
It is operated, also individually can be operated.
2. emulsion pump constant-pressure control device according to claim 1, it is characterised in that：The controlled motor is variable
Frequency or power frequency mode work.
3. emulsion pump constant-pressure control device according to claim 1, it is characterised in that：The constant pressure frequency conversion device includes
Disconnecting switch, converter movement, power frequency catalyst and frequency conversion catalyst, the disconnecting switch control the converter movement and work
Frequency catalyst, each power frequency catalyst and frequency conversion catalyst is supporting is set to a group, each control electricity
Machine assembles the power frequency catalyst and the frequency conversion catalyst control operating that set is arranged by one, and synchronization is different described
The frequency conversion catalyst of controlled motor can not adhesive simultaneously.
4. emulsion pump constant-pressure control device according to claim 3, it is characterised in that：The constant pressure frequency conversion device is also wrapped
Work protection board and master controller are included, the work protection board collection pressure data is simultaneously delivered to the master controller, the master
Controller controls the adhesive or disconnection of the power frequency catalyst and frequency conversion catalyst.
5. emulsion pump constant-pressure control device according to claim 4, it is characterised in that：The master controller passes through
The communication mode of CAN, Modbus or network interface is communicated with frequency conversion movement, and the master controller passes through CAN, Modbus or network interface
Communication mode communicated with the work protection board, power frequency catalyst.
6. emulsion pump constant-pressure control device according to claim 1, it is characterised in that：The pressure transducer is located at
At the drain pipe mouth position of the feed liquid pipeline of outside support apparatus in coal mine, the leakage fluid dram of emulsion pump and the confession of support apparatus in coal mine
Liquid pipe road is connected.
7. emulsion pump constant-pressure control device according to claim 1, it is characterised in that：The letter of the pressure transducer
Number electric current is 4-20mA.
8. emulsion pump constant-pressure control device according to claim 1, it is characterised in that：The amount of the pressure transducer
Journey is 0-60MPa.
9. emulsion pump constant-pressure control device according to claim 1, it is characterised in that：The quantity of the controlled motor
For two, it is A pump motors and B pump motors, the A pump motors and the equal variable ratio frequency changer of B pump motors or power frequency mode work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073416.7U CN206054271U (en) | 2016-09-22 | 2016-09-22 | Emulsion pump constant-pressure control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073416.7U CN206054271U (en) | 2016-09-22 | 2016-09-22 | Emulsion pump constant-pressure control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054271U true CN206054271U (en) | 2017-03-29 |
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ID=58366953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621073416.7U Active CN206054271U (en) | 2016-09-22 | 2016-09-22 | Emulsion pump constant-pressure control device |
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| Country | Link |
|---|---|
| CN (1) | CN206054271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194691A (en) * | 2016-09-22 | 2016-12-07 | 天津华宁电子有限公司 | Emulsion pump constant-voltage system |
-
2016
- 2016-09-22 CN CN201621073416.7U patent/CN206054271U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194691A (en) * | 2016-09-22 | 2016-12-07 | 天津华宁电子有限公司 | Emulsion pump constant-voltage system |
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