CN208316279U - Dense medium speed sinks water processing control circuit - Google Patents
Dense medium speed sinks water processing control circuit Download PDFInfo
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- CN208316279U CN208316279U CN201821055284.4U CN201821055284U CN208316279U CN 208316279 U CN208316279 U CN 208316279U CN 201821055284 U CN201821055284 U CN 201821055284U CN 208316279 U CN208316279 U CN 208316279U
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Abstract
The utility model relates to a kind of heavy water processing control circuits of dense medium speed, including control power supply and the main control circuit, the main loop circuit, loop protection control circuit, combined frequency changer control circuit, sensor interface circuitry that connect with control power supply.The heavy water processing control circuit function of the dense medium speed is complete, land occupation is few, reduces equipment interconnection, and installation maintenance is simple, and to water process electric motor protecting complete function, water treatment technological process is complete, high degree of automation, easy to operate, at low cost.
Description
Technical field:
The utility model relates to technical field of mine safety more particularly to a kind of heavy water processing control circuits of dense medium speed.
Background technique:
The heavy water treatment system of dense medium speed is a kind of water process mode, and the heavy water treatment system of dense medium speed needs a fairly large number of electricity
Machine, sensor, voltage class need more frequency converter, electromagnetic starter, electric cabinet, interconnect cross complaint, equipment between equipment
It is more, occupied space is big, installation maintenance is complicated, control mode is complicated, control is not flexible.
Utility model content:
The purpose of this utility model be in view of the drawbacks of the prior art, provide one kind occupy little space, control simple and flexible,
The heavy water processing control circuit of safe and reliable dense medium speed.
The utility model is achieved by the following technical solution: a kind of heavy water processing control circuit of dense medium speed, including control
Power supply processed and the main control circuit connecting with control power supply, main loop circuit, loop protection control circuit, combined frequency changer control
Circuit, sensor interface circuitry；
The control power supply control transformer T1, accessory power supply protector D5, output intrinsic safety electric source U1, Switching Power Supply U2 connect
Connect composition；
The main control circuit is by controller DK and the display DX connecting with controller DK, keyboard S1, total scram button
S3 connection composition；
The main loop circuit includes combination starter main loop circuit and combined frequency changer main loop circuit, the combination
Starter main loop circuit includes multiple circuits, shares insulating phase-change switch QS1, and each circuit is mutual by vacuum contactor KM, electric current
Sensor TA and over-voltage protector F connection composition, the combined frequency changer main loop circuit includes multiple circuits, shares and keeps apart
QS2 is closed, each circuit is made of input filter LB, input reactance device L1, frequency converter machine core BP and output filter L0 connection；
The loop protection control circuit be it is multiple, connect respectively with each circuit of combination starter main loop circuit, by
Protector DZ, vacuum contactor KM, relay K, operating status output terminal XF1 connection composition, the protector DZ and master control
The controller DK connection of circuit processed；
The combined frequency changer control circuit is connect with combined frequency changer main loop circuit, by protector DZ4, relay K,
Frequency converter machine core BP, scram button SB5, connecting terminal XF2 connection composition, the control of the protector DZ4 and main control circuit
Device DK connection；
The sensor interface circuitry is connect with main control circuit, by current collector D21, connecting terminal XB3 connection group
At the controller DK connection of the current collector D21 and main control circuit.
For the ease of collecting and showing data, the controller DK controlled by CAN bus protector DZ, DZ4 operation,
And the parameter of protector DZ, DZ4 are acquired, data are exchanged with current collector D21 by CAN bus, acquire the state of keyboard S1
And it is converted into corresponding operation, and send status information on display DX and show.
Preferably, the combination starter main loop circuit includes 12 circuits, the combined frequency changer major loop electricity
3, road circuit.Certainly, according to the actual situation, it can also increase accordingly or reduce the quantity in each circuit.
In order to guarantee safety, the loop protection control circuit is 3, and each loop protection control circuit controls respectively
4 combination starter main loop circuits, the output signal of current transformer TA are connected to protector DZ, for measuring major loop electricity
Stream, the coil of the vacuum contactor KM in each circuit is connected to protector DZ by 220V, for control vacuum contactor KM be attracted and
It disconnects, the normally opened auxiliary contact of vacuum contactor KM is connected to protector DZ, for detecting the operating status of vacuum contactor KM, often
The W of a combination starter main loop circuit communicated the normal opened contact of relay K, the normally closed contact of vacuum contactor KM is connected to guarantor
Device DZ is protected, for detecting the earth leakage search/lockout state of each major loop, the coil of relay K is connected to protector DZ by 24V, is used for
It controls relay device K to be attracted and disconnect, the operating status of vacuum contactor KM is output to state output terminal XF1, protector DZ
CAN bus is accessed by CANH, CANL terminal.
In order to guarantee safety, the normal opened contact that the W of each combination main circuit of frequency converter circuit communicated relay K is connect
To protector DZ4, for detecting the earth leakage search/lockout state of each major loop, the coil of relay K is connected to protector by 24V
DZ4 is attracted and disconnects for controlling relay K, and scram button SB5 is connected to the S2 terminal and protector DZ4 of frequency converter machine core BP
Combined floodgate output terminal, the start stop signal of frequency converter machine core BP is coupled with protector DZ4, the status signal of frequency converter machine core BP
It is coupled with protector DZ4, each frequency converter machine core BP is connected to protector DZ4 by RS485 bus, and motor temperature detection input connects
Mouth is connected to the PT100 and GND terminal of frequency converter machine core BP, and the operating status of frequency converter machine core BP exports XF2 connecting terminal, protection
Device DZ4 accesses CAN bus by CANH, CANL terminal.
In order to guarantee the reliability of power supply output, the control transformer T1 exports 2V, 127V, 220V power supply, 2V power supply
It is supplied to the protector DZ measuring system voltage of loop protection control circuit, 127V power supply provides electricity to other electric cabinets outside system
Source, 220V power supply provide power supply to output intrinsic safety electric source U1, Switching Power Supply U2, controller DK, vacuum contactor KM, export intrinsic safety
Power supply U1 export DC24V give current collector D21 provide power supply, Switching Power Supply U2 export DC24V to protector DZ1, DZ4, show
Show that device DX, relay K provide power supply.
Preferably, being provided with RS485, CAN, Ethernet interface on the controller DK.
The beneficial effects of the utility model are: the dense medium speed is sunk, water processing control circuit function is complete, land occupation is few, reduces
Equipment interconnection, installation maintenance is simple, and to water process electric motor protecting complete function, water treatment technological process is complete, the degree of automation
Height, it is easy to operate, it is at low cost.
Detailed description of the invention:
Fig. 1 is the simple view of the heavy water processing control circuit of dense medium speed of the utility model；
Fig. 2 is the circuit diagram of the control power supply of the utility model；
Fig. 3 is the circuit diagram of the main control circuit of the utility model；
Fig. 4 is the circuit diagram of the main loop circuit of the utility model；
Fig. 5 is the circuit diagram of the loop protection control circuit of the utility model；
Fig. 6 is the circuit diagram of the combined frequency changer control circuit of the utility model；
Fig. 7 is the circuit diagram of the sensor interface circuitry of the utility model.
Specific embodiment:
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be understood by those skilled in the art with feature, to make apparent specific boundary to the protection scope of the utility model
It is fixed.
The dense medium speed of the utility model sinks the setting of water processing control circuit in electric cabinet, is become by combination starter and combination
2 motor driving apparatus compositions of frequency device.
Water treatment facilities electric cabinet selects electric starter feeder number and frequency converter feeder number as needed, combination starter and
The feeder number flexible combination of combined frequency changer, most 12 circuits of combination starter, most 3 circuits of combined frequency changer.
As shown in Figure 1, dense medium speed sinks water processing control circuit by main loop circuit, control power supply, main control circuit, circuit
Protect a few part compositions of control circuit, sensor interface circuitry, combined frequency changer control circuit.
As shown in figure 4, main loop circuit is by 2 part of combination starter main loop circuit and combined frequency changer main loop circuit
Composition.
Maximum 12 circuits of combination starter main loop circuit, share insulating phase-change switch QS1, every circuit is by vacuum contactor
KMn (n=1,2 ..., 12, similarly hereinafter), current transformer TAn, over-voltage protector Fn composition.
Maximum 3 circuits of combined frequency changer main loop circuit, share disconnecting switch QS2, every circuit is by input filter LBn (n
=1,2,3, similarly hereinafter), input reactance device L11n, frequency converter machine core BPn, output filter L0n composition.
As shown in Fig. 2, control power supply is by control transformer T1, accessory power supply protector D5, output intrinsic safety electric source U1, switch
Power supply U2 composition.It controls transformer T1 and exports 2V, 127V, 220V power supply, wherein 2V is supplied to protector DZ1-DZ3 measuring system
Voltage, 127V to outside system other electric cabinets provide power supply, 220V to output intrinsic safety electric source U1, Switching Power Supply U2, controller DK,
Vacuum contactor KMn provides power supply.The various kinds of sensors for exporting intrinsic safety electric source U1 output DC24V water treatment system provides electricity
Source, Switching Power Supply U2 export DC24V and provide to protector DZ1-DZ4, display DX, relay K1-K12, relay K21-K23
Power supply.
As shown in figure 3, main control circuit is made of display DX, controller DK, keyboard S1, total scram button S3.Control
Device DK is the control core of entire water treatment facilities electric cabinet, controls the operation of DZ1-DZ4 by CAN bus and acquires DZ1-
The various parameters of DZ4 exchange data with 4-20mA current collector D21 by CAN bus, coordinate the control of entire water treatment system
Process processed acquires the state of keyboard S1 and is converted into corresponding operation, sends display for the status information of water treatment system
It is shown on DX, controller DK externally provides interface abundant such as RS485, CAN, Ethernet etc..
Protector DZ1-DZ3 is the protector of each combination starter major loop, 1 protector protection and 4 circuits of control
Starter, 12 circuits totally 3 protectors.Fig. 5 is protection and the control principle in the circuit 1-4, other circuits are similarly.1-4 is returned
Protect control circuit by protector DZ1, vacuum contact KM1-KM4, relay K1-K4, operating status output terminal XF1 group in road
At.The output signal of current transformer TA1-TA4 is connected to protector DZ1, for measuring main circuit current.Vacuum contactor
The coil of KM1-KM4 is connected to protector DZ1 by 220V, is attracted and disconnects for controlling vacuum contactor KM1-KM4.KM1-
The normally opened auxiliary contact of KM4 is connected to protector DZ1, for detecting the operating status of vacuum contactor KM1-KM4.Each major loop
W communicated the normal opened contact of relay K1-K4, the normally closed contact of vacuum contactor KM1-KM4 is connected to protector DZ1, be used for
Detect the earth leakage search/lockout state of each major loop.The coil of relay K1-K4 is connected to protector DZ1 by 24V, for control after
Electric appliance K1-K4 is attracted and disconnects.The operating status of vacuum contactor KM1-KM4 is output to terminal XF1.2V power supply is connected to protection
Device DZ1 is used for measuring system voltage.Protector DZ1 accesses CAN bus by its CANH, CANL terminal.The ground of protector DZ1
Location 1, address 2, the terminal of address common end 3 are protector DZ1-DZ4 for controller DK identification by different connection groups
Which protector.
As shown in fig. 6, combined frequency changer control circuit is by protector DZ4, relay K21-K23, frequency converter machine core BP1-
BP3, scram button SB5, connecting terminal XF2 composition.The normal opened contact that the W of each major loop communicated relay is connected to protector
DZ4, for detecting the earth leakage search/lockout state of each major loop.The coil of relay K21-K23 is connected to protector DZ4 by 24V,
It is attracted and disconnects for controlling relay K21-K23.Stop button SB5 is connected to frequency converter machine core S2 terminal and protector DZ4's
Combined floodgate output terminal.The start stop signal (S1 terminal and COM terminal) of frequency converter machine core BP1-BP3 is coupled with protector DZ4.Become
The status signal (R01A terminal) of frequency device machine core BP1-BP3 is coupled with protector DZ4.3 frequency converter machine core BP1-BP3 pass through
RS485 bus is connected to protector DZ4.Motor temperature detection input interface is connected to the PT100 and GND of frequency converter machine core BP1-BP3
Terminal.The operating status of frequency converter machine core BP1-BP3 exports XF2 connecting terminal.Protector DZ4 passes through its CANH, CANL terminal
Access CAN bus.
As shown in fig. 7, sensor interface circuitry is made of 4-20mA current collector D21, connecting terminal XB3.Output is originally
For the 24V that peace power supply U1 is exported to sensor, the current signal that sensor exports 4-20mA gives current collector D21, current acquisition
Device D21 parses sensor signal, gives controller DK by CAN bus.
The circuit theory of the heavy water processing control circuit of the utility model dense medium speed is as follows:
The insulating phase-change switch QS1 of combination starter is for isolation circuit (convenient for maintenance of opening the door) and motor commutation；Vacuum
Contactor KM1-KM12 is for controlling motor start and stop；Over-voltage protector F is generated in vacuum contactor operating process for absorbing
Overvoltage pulse；Current transformer TA detects the three-phase current in each major loop respectively, and secondary singal is sent to protector；
It controls transformer T1 and main circuit voltage (such as 1140V or 660V) is transformed into 2V, 127V, 220V.2V signal is sent to protector
DZ1-DZ3；127V after the protection such as the short circuit of accessory power supply protector, overload, electric leakage, power to other control cabinets by output；
220V powers to 3 equipment components: (1) controller DK and vacuum contactor KM1-KM12, (2) output intrinsic safety electric source, (3) switch electricity
Source；Export intrinsic safety electric source export DC24V give various kinds of sensors power supply；Switching Power Supply exports DC24V to display DX, protector
DZ4, relay K21-K23,4-20mA current collector D21 power supply；Keyboard S1 is connected to controller DK, and controller DK parses key
The operation of disk S1；Display DX is connected to controller DK, controls its display by controller DK；Total scram button S3 is normally closed touching
Point, when controller DK detects that normally-closed contact disconnects, by sending instructions under CAN bus, all major loops are disconnected.DK pairs of controller
Outer offer RS485 interface, Ethernet interface, CAN interface, convenient and other equipment networking, with each protector DZ1-DZ4,4-
20mA current collector D21 is connected by CAN bus, and is sent to it control command.The protector DZ of 1 combination starter is protected
4 circuits of shield and control, detect the secondary singal and 2V voltage signal of current transformer TA, by handling operation, to major loop
Carry out the defencive functions such as short circuit, overload, over-voltage, under-voltage；The auxiliary normally opened contact and pull-in winding of vacuum contactor KM1-KM12
It is all connected to protector DZ1-DZ3, when fault-free, protector DZ1-DZ3 instructs on-off pull-in winding according to controller, faulty
When, protector DZ1-DZ3 directly disconnects pull-in winding；Protector DZ1-DZ3 has the function of leakage latching protection, vacuum contactor
After KM1-KM12 disconnects motor stopping, relay K1-K12 is attracted, leakage latching protection function investment, and detection major loop is exhausted over the ground
Edge resistance condition, protector DZ1-DZ3 export normally-closed contact, the relay that direct current signal passes through vacuum contactor KM1-KM12
The normally opened contact of K1-K12 is closed into major loop, and protector DZ1-DZ3 changes according to direct current signal calculates insulation resistance size, absolutely
Edge resistance is lower than calibration value, and the circuit vacuum contactor is forbidden to be attracted；Sensor exports 4-20mA according to the real data of acquisition
Signal is passed to controller DK by CAN bus to 4-20mA current collector D21, current collector D21 by current signal, control
Device DK processed parses real data according to preset value.The disconnecting switch QS2 of combined frequency changer is for being isolated main loop circuit；
Input filter LB, input reactance device L1 are filtered input signal and prevent frequency converter interference feedback to power grid；Frequency converter
Machine core BP completes rectification, frequency conversion, reversals, controls motor speed；Output filter L0 filters out the peak voltage of inverter signal.
After combined frequency changer protector DZ4 also has the function of that leakage latching protection, frequency converter machine core BP control motor stopping, relay
K21-K23 is attracted, leakage latching protection function investment, detects major loop insulation against ground resistance condition, and protector DZ4 exports direct current
Signal is closed into major loop by the normally opened contact of relay K21-K23, and protector DZ4 changes according to direct current signal calculates insulation
Resistance sizes, insulation resistance are lower than calibration value, forbid the loop start；Combined frequency changer protector DZ4 by RS485 bus with
Each frequency converter machine core BP communication, sends start stop command, parameter, receives loop state；Each frequency converter machine core BP has motor
Temperature detection input interface；Controller DK contains water processing control process flow, can be to work by keyboard S1 and display screen DX
Skill process is configured, to adapt to live needs.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.
Claims (7)
1. a kind of dense medium speed sinks water processing control circuit, it is characterised in that: including control power supply and the master being connect with control power supply
Control circuit, main loop circuit, loop protection control circuit, combined frequency changer control circuit, sensor interface circuitry；
The control power supply control transformer T1, accessory power supply protector D5, output intrinsic safety electric source U1, Switching Power Supply U2 connection group
At；
The main control circuit is connected by the controller DK and display DX connecting with controller DK, keyboard S1, total scram button S3
Connect composition；
The main loop circuit includes combination starter main loop circuit and combined frequency changer main loop circuit, and the combination starts
Device main loop circuit includes multiple circuits, shares insulating phase-change switch QS1, each circuit is by vacuum contactor KM, current transformer
TA and over-voltage protector F connection composition, the combined frequency changer main loop circuit includes multiple circuits, shares disconnecting switch
QS2, each circuit are made of input filter LB, input reactance device L1, frequency converter machine core BP and output filter L0 connection；
The loop protection control circuit be it is multiple, connect respectively with each circuit of combination starter main loop circuit, by protecting
Device DZ, vacuum contactor KM, relay K, operating status output terminal XF1 connection composition, the protector DZ and main control electricity
The controller DK connection on road；
The combined frequency changer control circuit is connect with combined frequency changer main loop circuit, by protector DZ4, relay K, frequency conversion
Device machine core BP, scram button SB5, connecting terminal XF2 connection composition, the controller DK of the protector DZ4 and main control circuit
Connection；
The sensor interface circuitry is connect with main control circuit, is made of current collector D21, connecting terminal XB3 connection, institute
State the controller DK connection of current collector D21 and main control circuit.
2. dense medium speed according to claim 1 sinks water processing control circuit, it is characterised in that: the controller DK passes through
The operation of CAN bus control protector DZ, DZ4 and the parameter for acquiring protector DZ, DZ4, pass through CAN bus and current acquisition
Device D21 exchanges data, acquires the state of keyboard S1 and is converted into corresponding operation, and sends status information on display DX
Display.
3. dense medium speed according to claim 2 sinks water processing control circuit, it is characterised in that: the combination starter master returns
Road circuit includes 12 circuits, 3 circuits of the combined frequency changer main loop circuit.
4. dense medium speed according to claim 3 sinks water processing control circuit, it is characterised in that: the loop protection control electricity
Road is 3, and each loop protection control circuit controls 4 combination starter main loop circuits respectively, and current transformer TA's is defeated
It is signally attached to protector DZ out, for measuring main circuit current, the coil of the vacuum contactor KM in each circuit is connect by 220V
To protector DZ, it is attracted and disconnects for controlling vacuum contactor KM, the normally opened auxiliary contact of vacuum contactor KM is connected to protection
Device DZ, for detecting the operating status of vacuum contactor KM, the W of each combination starter main loop circuit communicated relay K
Normal opened contact, vacuum contactor KM normally closed contact be connected to protector DZ, for detecting the earth leakage search/lockout shape of each major loop
The coil of state, relay K is connected to protector DZ by 24V, is attracted and disconnection, vacuum contactor KM for controlling relay device K
Operating status be output to state output terminal XF1, protector DZ accesses CAN bus by CANH, CANL terminal.
5. dense medium speed according to claim 4 sinks water processing control circuit, it is characterised in that: each combined frequency changer master
The normal opened contact that the W of loop circuit communicated relay K is connected to protector DZ4, for detecting the earth leakage search/lockout of each major loop
The coil of state, relay K is connected to protector DZ4 by 24V, is attracted and disconnection, scram button SB5 for controlling relay K
It is connected to the S2 terminal of frequency converter machine core BP and the combined floodgate output terminal of protector DZ4, the start stop signal difference of frequency converter machine core BP
It is connected to protector DZ4, the status signal of frequency converter machine core BP is coupled with protector DZ4, and each frequency converter machine core BP passes through RS485
Bus is connected to protector DZ4, and motor temperature detection input interface is connected to the PT100 and GND terminal of frequency converter machine core BP, frequency converter
The operating status of machine core BP exports XF2 connecting terminal, and protector DZ4 accesses CAN bus by CANH, CANL terminal.
6. dense medium speed according to claim 1 sinks water processing control circuit, it is characterised in that: the control transformer T1 is defeated
2V, 127V, 220V power supply out, 2V power supply are supplied to the protector DZ measuring system voltage of loop protection control circuit, 127V electricity
Source provides power supply to other electric cabinets outside system, and 220V power supply is to output intrinsic safety electric source U1, Switching Power Supply U2, controller DK, true
Empty contactor KM provides power supply, export intrinsic safety electric source U1 and exports DC24V and gives current collector D21 offer power supply, Switching Power Supply U2
It exports DC24V and provides power supply to protector DZ, DZ4, display DX, relay K.
7. dense medium speed according to claim 1 sinks water processing control circuit, it is characterised in that: be arranged on the controller DK
There are RS485, CAN, Ethernet interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055284.4U CN208316279U (en) | 2018-07-04 | 2018-07-04 | Dense medium speed sinks water processing control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055284.4U CN208316279U (en) | 2018-07-04 | 2018-07-04 | Dense medium speed sinks water processing control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208316279U true CN208316279U (en) | 2019-01-01 |
Family
ID=64717950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821055284.4U Active CN208316279U (en) | 2018-07-04 | 2018-07-04 | Dense medium speed sinks water processing control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN208316279U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695827A (en) * | 2018-07-04 | 2018-10-23 | 天地（常州）自动化股份有限公司 | The heavy water processing control circuit of dense medium speed |
| CN110571910A (en) * | 2019-10-09 | 2019-12-13 | 中煤华晋集团有限公司 | mining explosion-proof and intrinsically safe dual-power dual-loop lighting control device |
-
2018
- 2018-07-04 CN CN201821055284.4U patent/CN208316279U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695827A (en) * | 2018-07-04 | 2018-10-23 | 天地（常州）自动化股份有限公司 | The heavy water processing control circuit of dense medium speed |
| CN108695827B (en) * | 2018-07-04 | 2024-02-06 | 天地（常州）自动化股份有限公司 | Heavy medium fast submerged processing control circuit |
| CN110571910A (en) * | 2019-10-09 | 2019-12-13 | 中煤华晋集团有限公司 | mining explosion-proof and intrinsically safe dual-power dual-loop lighting control device |
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