CN100505464C - Electronic anti-slip protector - Google Patents
Electronic anti-slip protector Download PDFInfo
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- CN100505464C CN100505464C CNB2006100448812A CN200610044881A CN100505464C CN 100505464 C CN100505464 C CN 100505464C CN B2006100448812 A CNB2006100448812 A CN B2006100448812A CN 200610044881 A CN200610044881 A CN 200610044881A CN 100505464 C CN100505464 C CN 100505464C
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Abstract
The related electronic anti idle-running protector for magnetic drive pump comprises: a relay contact connected to the control loop of pump, and a controller with input end connected to both a control button and a current transformer. This invention has small volume, high sensitivity, and well reliability, and can avoid abrasion and loss as long time idle running.
Description
Technical field
The present invention relates to a kind of electronic anti-slip protector, be mainly used in the antiaircraft rotation protection of magnetic drive pump.
Background technology
Magnetic drive pump drives the impeller rotation in the pump housing by the permanent magnetism power between the inside and outside magnet rotor of magnetic airproof driver, by being installed in the static separation sleeve between the inside and outside magnet rotor, guarantees that its pump medium does not leak.Pump rotor is made up of interior magnet rotor, pump rotating shaft and impeller, is supported by forward and backward journal bearing, and controls its axial displacement by axial force balance mechanism.Magnetic drive pump is widely used in carrying inflammable and explosive medium and poisonous medium.But when magnetic drive pump occurring and find time, be easy to take place the high temperature demagnetization and the damage of bearings of magnet rotor, and separation sleeve than galling, not only cause big potential safety hazard, and reduce the useful life of magnetic drive pump to production.
Existing resist technology, main with the method that increases cooling device, can not fundamentally solve magnetic drive pump idle running problem.
Summary of the invention
The object of the present invention is to provide a kind of electronic anti-slip protector, volume is little, and is highly sensitive, and dependable performance can in time be found magnetic drive pump idle running, and make a response automatically, avoids the idle running of magnetic drive pump.
Electronic anti-slip protector of the present invention; comprise control button and relay contact; it is characterized in that being provided with the controller summation current transformer; the control button summation current transformer connects the controller input; relay contact connects the magnetic drive pump control loop, and the control end of relay contact connects controller output end, and controller comprises power subsystem and control unit; control unit comprises comparison amplifying circuit and drive circuit, wherein:
Relatively amplifying circuit is by integrated operational amplifier U1, logic chip U2 and by the first to the 20 resistance R 1-R20, first to the 6th capacitor C 1-C6, inductance B1, first to the 5th diode D1-D5, the first voltage stabilizing didoe ZD1, the peripheral circuit that the second voltage stabilizing didoe ZD2 and first to the 3rd potentiometer RP1-RP3 form, be connected with second resistance R 2 and the 3rd resistance R 3 of series connection between 13 pin of integrated operational amplifier U1 and 14 pin, 14 pin connect 10 pin of integrated operational amplifier U1 by first resistance R 1,13 pin are by the second voltage stabilizing didoe ZD2 ground connection, the 5th resistance R 5 and the 6th resistance R 6 ground connection by series connection, 10 pin of integrated operational amplifier U1 are by the 4th resistance R 4 and the inductance B1 ground connection of series connection, be connected to the first voltage stabilizing didoe ZD1 between 10 pin and 9 pin, 9 pin are by the 7th resistance R 7 ground connection, be parallel with first capacitor C 1 and the first potentiometer RP1 between 9 pin and 8 pin, 8 pin of integrated operational amplifier U1 connect the sliding end and 6 pin that are connected integrated operational amplifier U1 by the 9th resistance R 9 of the second potentiometer RP2 by second capacitor C 2, the 8th resistance R 8 is arranged between 8 pin of integrated operational amplifier U1 and 5 pin, the tenth resistance R 10 is arranged between 8 pin and 2 pin, the 3rd capacitor C 3 is arranged between 8 pin and 3 pin, 3 pin of integrated operational amplifier U1 are by the 12 resistance R 12 of series connection, the 13 resistance R 13, the 15 resistance R 15 and the second potentiometer RP2 ground connection, also pass through the 12 resistance R 12 of series connection, the 14 resistance R 14 and the 6th capacitor C 6 ground connection, the 14 resistance R 14 and the 4th diode D4 parallel connection, 1 pin of integrated operational amplifier U1 connects the second diode D2 and the 3rd potentiometer RP3, the 3rd potentiometer RP3 is connected with first end of the 19 resistance R 19, second end of second end of the 19 resistance R 19 and the second diode D2 all is connected with first end of the 20 resistance R 20,7 pin of integrated operational amplifier U1 are connected first end of the 18 resistance R 18 with the first diode D1 by the 17 resistance R 17 of parallel connection, second end of the 18 resistance R 18 is connected with the 5th capacitor C 5 by the 4th capacitor C 4 with second end of the 20 resistance R 20, the positive pole of the 4th capacitor C 4 is connected on 6 pin of logic chip U2 by the 3rd diode D3, the positive pole of the 5th capacitor C 5 is connected on 6 pin of logic chip U2 by the 5th diode D5,5 pin among the logic chip U2 connect 11 pin, 12 pin connect 4 pin, 13 pin connect 2 pin, 4 pin connect 1 pin, 3 pin connect 8 pin and 9 pin, and 13 pin of logic chip U2 are by switch S 1 ground connection;
Drive circuit is by the 21 resistance R the 21, the 22 resistance R 22, the 6th diode D6, the 7th diode D7, triode Q1, relay K M1 and the 7th capacitor C 7 are formed, and 10 pin of logic chip U2 connect the base stage of triode Q1 by the 21 resistance R 21, and the base stage of triode Q1 is by the 7th capacitor C 7 ground connection, radio utmost point ground connection, collector electrode meets power supply VCC by relay K M1, and the 22 resistance R 22 and the 6th diode D6 series connection are in parallel with the 7th diode D7 and relay K M1 then.
Current transformer is installed on the magnetic drive pump power line, compact conformation, volume is little.
Operation principle is: current transformer is obtained the magnetic drive pump power supply signal, and after the processing of comparing amplifying circuit, drive circuit judges whether action.When the signal of obtaining when current transformer diminishes, after the processing through amplifying circuit relatively, the drive circuit conducting, engage relay, the relay adhesive, relay contact disconnects the magnetic drive pump control loop, and magnetic drive pump is quit work.
The present invention is directed to magnetic drive pump and in operation process, cause idle running because of aneroid, fragile magnetic force pump head designs, according to instructions for use, set up accessories such as run indicator, malfunction indicator lamp, reset switch, can be you and in time find and fix a breakdown good help is provided.
Electronic anti-slip protector of the present invention, electronic devices and components control, volume is little; highly sensitive, dependable performance is by being provided with the controller summation current transformer; the control button summation current transformer connects the controller input, and relay contact connects controller output end and magnetic drive pump control loop.Find time to cause motor load to alleviate at magnetic drive pump, when current of electric reduced, protector action drives relay contact cut off the magnetic drive pump control loop, had avoided the long-term idle running of magnetic drive pump to cause the wearing and tearing and the loss of pump head and separation sleeve, thereby had avoided having an accident.Therefore, have high use value and obvious economic benefit aborning.
Description of drawings
Fig. 1, embodiment of the invention principle schematic.
The comparison amplifying circuit of Fig. 2, controller of the present invention and the circuit theory diagrams of drive circuit.
Among the figure: U1, integrated operational amplifier U2, logic chip R1-R22, resistance R P1-RP3, potentiometer C1-C7, electric capacity D1-D7, diode ZD1, ZD2, voltage stabilizing didoe B1, inductance S1, switch Q1, triode KM1, relay.
Embodiment
The present invention is further illustrated below in conjunction with the embodiment accompanying drawing.
As shown in Figure 1, the magnetic drive pump control loop is provided with switch, relay switch summation current transformer, the control button summation current transformer connects the controller input, and the control end of relay contact connects controller output end, and one of magnetic drive pump control loop provides power supply for controller.
As shown in Figure 2, relatively amplifying circuit comprises integrated operational amplifier U1, logic chip U2 and is made up of the peripheral circuit that resistance R 1-R20, capacitor C 1-C6, inductance B1, diode D1-D5, voltage stabilizing didoe ZD1, ZD2 and potentiometer RP1-RP3 etc. form.Be connected with resistance R 2, R3 between 13 pin of integrated operational amplifier U1D and 14 pin, 14 pin are by 10 pin of R1 connection integrated operational amplifier U1C, and 13 pin are by voltage stabilizing didoe ZD2 ground connection, by resistance R 5, R6 ground connection.10 pin of integrated operational amplifier U1C are connected to voltage stabilizing didoe ZD1 by resistance R 4 and inductance B1 ground connection between 10 pin and 9 pin, and 9 pin are parallel with capacitor C 1 and potentiometer RP1 by resistance R 7 ground connection between 9 pin and 8 pin.8 pin of integrated operational amplifier U1C connect the sliding end and 6 pin that are connected integrated operational amplifier U1B by resistance R 9 of potentiometer RP2 by capacitor C 2.Have between 8 pin of integrated operational amplifier U1 and 5 pin to have between resistance R 10,8 pin and 3 pin between resistance R 8,8 pin and 2 pin capacitor C 3 is arranged.3 pin of integrated operational amplifier U1A are by resistance R 12, R13, R15 and potentiometer RP2 ground connection, also by resistance R 12, R14 and capacitor C 6 ground connection.Resistance R 14 and diode D4 parallel connection.1 pin of integrated operational amplifier U1 connects the second diode D2 and the 3rd potentiometer RP3, the 3rd potentiometer RP3 is connected with first end of the 19 resistance R 19, second end of second end of the 19 resistance R 19 and the second diode D2 all is connected with first end of the 20 resistance R 20,7 pin of integrated operational amplifier U1 are connected first end of the 18 resistance R 18 by the 17 resistance R 17 of parallel connection with the first diode D1, second end of the 18 resistance R 18 is connected with the 5th capacitor C 5 by the 4th capacitor C 4 with second end of the 20 resistance R 20.The positive pole of capacitor C 4, C5 is connected on 6 pin of logic chip U2 by diode D3, D5.5 pin of logic chip U2 connect 11 pin, 12 pin and connect 4 pin, 13 pin and connect that 2 pin, 4 pin connect 1 pin, 3 pin connect 8 pin and 9 pin, and 13 pin of logic chip U2 are by switch S 1 ground connection.
Drive circuit comprises resistance R 21, R22, diode D6, D7, and triode Q1, relay K M1 and capacitor C 7 are formed.10 pin of logic chip U2 connect the base stage of triode Q1 by resistance R 21.The base stage of triode Q1 is by capacitor C 7 ground connection, radio utmost point ground connection.Collector electrode meets power supply VCC by relay K M1.Resistance R 22 and diode D6 series connection, in parallel with diode D7 and relay K M1 then.
Power subsystem constitutes for the common power device, and an end connects the phase from control loop, and an end connects the VCC of drive circuit, for controller provides the power supply support.Alarm lamp or alarm can also be set as required.
If the magnetic drive pump current of electric can be with the instrument transformer input of the direct input protector of magnetic drive pump electric current less than 5 ampere-hours.When electric current is big; input by the induced current input protector of current transformer; make electric current to the change in voltage amplification by integrated operational amplifier U1D; send into integrated operational amplifier U1C again and do voltage amplification; after the reference voltage that 5 pin that exported to integrated operational amplifier U1B by 8 pin one tunnel are got by potentiometer RP2 and resistance R 15, R13 dividing potential drop with 6 pin of integrated operational amplifier U1B is made comparisons; through resistance R 17, diode D1, resistance R 18, capacitor C 4, diode D3 is to 6 pin of logic chip U2B.One the tunnel exports 2 pin of integrated operational amplifier U1A to, the reference voltage that by resistance R 12, R11 VCC voltage dividing potential drop is got with 3 pin amplifications of making comparisons delayed time after diode D5 exports 6 pin of logic chip U2B to via potentiometer RP3, resistance R 19, diode D2, resistance R 20, capacitor C 5.In addition the VCC power supply is sent into 13 pin of logic chip U2D through resistance R 14, diode D4, resistance R 16, capacitor C 6, and 13 pin are opened contact ground connection through switch S 1 is long.
When magnetic drive pump runs well, because current of electric is bigger, current transformer to provide electric current also bigger, the reference voltage height of voltage ratio 6 pin of 8 pin output after integrated operational amplifier U1C amplifies, about positive voltage of about 10 volts of 7 pin output is through resistance R 17, R18, diode D1, D3 are to 6 pin of logic chip U2B, negative voltage of 4 pin output, negative voltage of output is given triode Q1 after twice of logic chip U2A, logic chip U2C are anti-phase, triode Q1 ends, relay K M1 is failure to actuate, and magnetic drive pump runs well.And when magnetic drive pump is found time; the pump motor electric current diminishes; cause after integrated operational amplifier U1C amplifies to the 5 pin voltages of integrated operational amplifier U1B reference voltage less than 6 pin; and make 7 pin output negative voltage through resistance R 17, R18; diode D1, D3 are to 6 pin of logic chip U2B; anti-phase through twice of logic chip U2A, logic chip U2C; make 10 pin fail positive voltage; triode Q1 conducting; relay K M1 adhesive; relay K M1 contact disconnects magnetic drive pump control loop power supply, avoids magnetic drive pump to dally for a long time, and magnetic drive pump is protected.
Claims (2)
1, a kind of electronic anti-slip protector; comprise control button and relay contact; it is characterized in that being provided with the controller summation current transformer; the control button summation current transformer connects the controller input; relay contact connects the magnetic drive pump control loop, and the control end of relay contact connects controller output end, and controller comprises power subsystem and control unit; control unit comprises comparison amplifying circuit and drive circuit, wherein:
Relatively amplifying circuit is by integrated operational amplifier (U1), logic chip (U2) and by the first to the 20 resistance (R1-R20), first to the 6th electric capacity (C1-C6), inductance (B1), first to the 5th diode (D1-D5), first voltage stabilizing didoe (ZD1), the peripheral circuit that second voltage stabilizing didoe (ZD2) and first to the 3rd potentiometer (RP1-RP3) are formed, be connected with second resistance (R2) and the 3rd resistance (R3) of series connection between 13 pin of integrated operational amplifier (U1) and 14 pin, 14 pin connect 10 pin of integrated operational amplifier (U1) by first resistance (R1), 13 pin are by second voltage stabilizing didoe (ZD2) ground connection, the 5th resistance (R5) and the 6th resistance (R6) ground connection by series connection, 10 pin of integrated operational amplifier (U1) are by the 4th resistance (R4) and inductance (B1) ground connection of series connection, be connected to first voltage stabilizing didoe (ZD1) between 10 pin and 9 pin, 9 pin are by the 7th resistance (R7) ground connection, be parallel with first electric capacity (C1) and first potentiometer (RP1) between 9 pin and 8 pin, 8 pin of integrated operational amplifier (U1) connect the sliding end and 6 pin that are connected integrated operational amplifier (U1) by the 9th resistance (R9) of second potentiometer (RP2) by second electric capacity (C2), the 8th resistance (R8) is arranged between 8 pin of integrated operational amplifier (U1) and 5 pin, the tenth resistance (R10) is arranged between 8 pin and 2 pin, the 3rd electric capacity (C3) is arranged between 8 pin and 3 pin, 3 pin of integrated operational amplifier (U1) are by the 12 resistance (R12) of series connection, the 13 resistance (R13), the 15 resistance (R15) and second potentiometer (RP2) ground connection, also pass through the 12 resistance (R12) of series connection, the 14 resistance (R14) and the 6th electric capacity (C6) ground connection, the 14 resistance (R14) and the 4th diode (D4) parallel connection, 1 pin of integrated operational amplifier (U1) connects second diode (D2) and the 3rd potentiometer (RP3), the 3rd potentiometer (RP3) is connected with first end of the 19 resistance (R19), second end of second end of the 19 resistance (R19) and second diode (D2) all is connected with first end of the 20 resistance (R20), 7 pin of integrated operational amplifier (U1) are connected first end of the 18 resistance (R18) with first diode (D1) by the 17 resistance (R17) in parallel, second end of the 18 resistance (R18) is connected with the 5th electric capacity (C5) by the 4th electric capacity (C4) with second end of the 20 resistance (R20), the positive pole of the 4th electric capacity (C4) is connected on 6 pin of logic chip (U2) by the 3rd diode (D3), the positive pole of the 5th electric capacity (C5) is connected on 6 pin of logic chip (U2) by the 5th diode (D5), 5 pin in the logic chip (U2) connect 11 pin, 12 pin connect 4 pin, 13 pin connect 2 pin, 4 pin connect 1 pin, 3 pin connect 8 pin and 9 pin, and 13 pin of logic chip (U2) are by switch (S1) ground connection;
Drive circuit is by the 21 resistance (R21), the 22 resistance (R22), the 6th diode (D6), the 7th diode (D7), triode (Q1), relay (KM1) and the 7th electric capacity (C7) are formed, 10 pin of logic chip (U2) connect the base stage of triode (Q1) by the 21 resistance (R21), the base stage of triode (Q1) is by the 7th electric capacity (C7) ground connection, radio utmost point ground connection, collector electrode connects power supply (VCC) by relay (KM1), the 22 resistance (R22) and the 6th diode (D6) series connection, in parallel with the 7th diode (D7) and relay (KM1) then.
2, electronic anti-slip protector according to claim 1 is characterized in that current transformer is installed on the magnetic drive pump power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100448812A CN100505464C (en) | 2006-06-14 | 2006-06-14 | Electronic anti-slip protector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100448812A CN100505464C (en) | 2006-06-14 | 2006-06-14 | Electronic anti-slip protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1885659A CN1885659A (en) | 2006-12-27 |
| CN100505464C true CN100505464C (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100448812A Expired - Fee Related CN100505464C (en) | 2006-06-14 | 2006-06-14 | Electronic anti-slip protector |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7652859B2 (en) * | 2006-12-28 | 2010-01-26 | General Electric Company | Intelligent electronic device with integrated pushbutton for use in power substation |
| CN115405535A (en) * | 2022-08-26 | 2022-11-29 | 焦作市华康糖醇科技有限公司 | Protection method for mechanical seal of tetrafluoro pump |
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| CN1885659A (en) | 2006-12-27 |
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| C14 | Grant of patent or utility model | ||
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Owner name: WANG BINGSHUAN Free format text: FORMER OWNER: YONGQI CHEMICAL TECHNOLOGY DEVELOPMENT CO., LTD., ZIBO Effective date: 20110411 Owner name: ZHANG GUANGSHENG |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Bingshuan Inventor after: Zhang Guangsheng Inventor before: Wang Bingshuan Inventor before: Zhang Guangsheng Inventor before: Liu Qicheng |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG BINGSHUAN ZHANG GUANGSHENG LIU QICHENG TO: WANG BINGSHUAN ZHANG GUANGSHENG Free format text: CORRECT: ADDRESS; FROM: 255086 ROOM 820, TOWER D, VENTURE PARK, NO. 135, ZHENGTONG ROAD, HIGH-TECH.DEVELOPMENT ZONE, ZIBO CITY, SHANDONG PROVINCE TO: 050051 18-2-501, NO. 129, HONGQI STREET, QIAOXI DISTRICT, SHIJIAZHUANG CITY, HEBEI PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110411 Address after: 050051, 18-2-501, 129 Hongqi Avenue, Shiqiao West, Hebei, Shijiazhuang Co-patentee after: Zhang Guangsheng Patentee after: Wang Bingshuan Address before: 820, room 255086, block D, No. 135, executive Road, Zibo hi tech Development Zone, Shandong, China Patentee before: Yongqi Chemical Technology Development Co., Ltd., Zibo |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20120614 |