CN101881268A - Circuit structure of interlocking protective device of pump adding system - Google Patents
Circuit structure of interlocking protective device of pump adding system Download PDFInfo
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- CN101881268A CN101881268A CN2010102370594A CN201010237059A CN101881268A CN 101881268 A CN101881268 A CN 101881268A CN 2010102370594 A CN2010102370594 A CN 2010102370594A CN 201010237059 A CN201010237059 A CN 201010237059A CN 101881268 A CN101881268 A CN 101881268A
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- controller
- coil
- contactor
- pumping
- pump
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Abstract
The invention relates to a circuit structure of an interlocking protective device of a pump adding system, comprising a pump and a controller, wherein the input end of the controller is connected with a limiting switch; the output end of the controller is connected with a coil of an intermediate relay; a contact of the intermediate relay is connected with a coil of a contactor; and the contact of the contactor is connected with the pump. By arranging the limiting switch on one side of a valve handle of a medicine-supplying branch pipe, the limiting switch can be opened or closed by using the valve handle; and when an output signal exists in the limiting switch, the coil of the intermediate relay is not electrified, the coil of the contactor is not electrified, the pump cannot be started for supplying medicines and the mistaken operation can be avoided; and when the valve handle is not contacted with the limiting switch, the coils of the intermediate relay and the contactor are electrified by using the controller according to the external input and the pump can be started. The invention has the advantages of simple structure, convenient operation and use, safety and reliability.
Description
Technical field
The present invention relates to a kind of circuit structure of interlocking protective device, especially a kind of interlocking protective device of pump adding system.
Background technique
In industrial production, need use strong, the volatile soups of corrosivity such as soda acid, and there are many production lines to use with a kind of soup, these soups are generally in production scene inconvenience storage, so install the concentrated a certain place that is placed on bigger liquid receiver, deliver to the production scene with pumping as required again, use, be commonly called as central authorities for medicine for manufacturing mechanism.Traditional for the prescription formula is: use with shared one of a kind of soup production line and at each production line the pumping controller be housed on the spot for the Teat pipette Pu, the starting of control pumping and stopping, soup through be responsible for for medicine, each arm is to each production line medication groove.On each arm valve is housed, in off position, when preventing a branch road dosing, other branch road does not advance medicine simultaneously when not needing for medicine.When production line needs soup, open valve on the arm earlier, opening for the Teat pipette Pu on the controller on the spot again; After soup adds well, closing for the Teat pipette Pu on the controller on the spot, close valve on the arm more earlier.Because of valve and pumping all are manual operations, and operation also will have sequencing, misoperation easily.Throttle down when unlatching pumping or pumping did not stop when particularly valve was not opened makes pipeline and pumping bear excess pressure, causes pipeline or pumping breakage easily, and liquid leakage jeopardizes the person, equipment and Environmental security.
Once added in production line medication groove and add solenoid valve control on liquid level sensor and the arm, when the medication groove hanged down liquid level, solenoid valve was opened automatically, manually opened pumping; Pumping stops automatically during to high liquid level, and solenoid valve cuts out automatically.Also do not have to take place to the situation of low liquid level but have the medication groove, when solenoid valve was not also opened, just the someone opened pumping; Because of soup has certain corrosivity to solenoid valve, thus fit badly sometimes during closed electromagnetic valve, when in addition with the production line dosing of this kind soup, simultaneously by the solenoid valve do not closed tight to the medication groove dosing of having filled it up with, cause soup overflow etc. unusual.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of circuit structure of interlocking protective device of pump adding system is provided, it is simple in structure, and is easy to use, safe and reliable.
According to technological scheme provided by the invention, the circuit structure of described interlocking protective device of pump adding system comprises pumping and controller; The input end of described controller links to each other with limit switch, and the output terminal of controller links to each other with the coil of auxiliary reclay, and the contact of described auxiliary reclay links to each other with the coil of contactor, and the contact of described contactor links to each other with pumping.
Described controller is single-chip microcomputer or PLC.
Advantage of the present invention: by being provided with limit switch in valve handle one side for the medicine arm, valve handle can open or close limit switch; When limit switch had output signal, the coil of described auxiliary reclay can be not charged, and the coil of contactor can be not charged, can not start pumping and supply medicine, avoids misoperation; When valve handle did not contact with limit switch, controller was imported according to the outside, made the coil of auxiliary reclay and contactor charged, can start pumping, and is simple in structure, uses easy to operate, safe and reliable.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 1: the present invention includes limit switch 1, controller 2, auxiliary reclay 3, contactor 4 and pumping 5.
As shown in Figure 1: described pumping 5 is by supplying medicine for the medicine arm, and the described medicine arm that supplies is provided with manually-operated gate, and manually-operated gate is provided with the turn handle, is used to open or close for the medicine arm.Manually-operated gate one side for the medicine arm is provided with limit switch 1, and after manually-operated gate will be closed for the medicine arm by the turn handle, the turn handle was pushed down limit switch 1 simultaneously, makes limit switch 1 output limit signal; When manually-operated gate is opened by the turn handle for behind the medicine arm, turn handle and limit switch 1 away from, limit switch 1 stops to export limit signal.Limit switch 1 links to each other with the input end of controller 2, can be to controller 2 input limit signals.Controller 2 can be single-chip microcomputer, PLC (programmable logic controller (PLC)) or other microprocessors.The output terminal of controller 2 links to each other with the coil of auxiliary reclay 3, and the normally opened contact of described auxiliary reclay 3 links to each other with the coil of contactor 4, and the normally opened contact of described contactor 4 links to each other with pumping 5.
When needs supply medicine, rotate for the manually-operated gate on the medicine arm, make turn handle and limit switch 1 away from; Start start button then, controller 2 makes the coil of auxiliary reclay 3 charged, and the normally opened contact closure of correspondence on the auxiliary reclay 3 realizes the self-locking of auxiliary reclay 3; And auxiliary reclay 3 is also closed corresponding to the normally opened contact that links to each other with contactor 4, makes the coil of contactor 4 charged, thereby starts pumping 5; After pumping 5 starts the soup in the liquid receiver is flowed out by supplying the medicine arm, supply medicine to the scene.After soup is filled it up with, in the time of need stopping for medicine, open stop button, the coil losing electricity of auxiliary reclay 3, auxiliary reclay 3 disconnects corresponding to the normally opened contact that links to each other with contactor 4, and the coil of contactor 4 is dead electricity also, and pumping 5 shuts down, and stops for medicine; And will for the manually-operated gate on the medicine arm corresponding to the turn handle push down limit switch 1.If people's misoperation when pumping 5 running dosings is arranged, in the time of will closing for manually-operated gate corresponding on the medicine arm, this moment, limit switch 1 was depressed by the turn handle, carry limit signal to controller 2, the coil losing electricity of auxiliary reclay 3, auxiliary reclay 3 disconnects corresponding to the normally opened contact that links to each other with contactor 4, the coil losing electricity of contactor 4, pumping 5 shuts down, and stops for medicine.Promptly work as pumping 5 in the running, if close for the manually-operated gate on the medicine arm, pumping 5 can stop automatically, protects.When not opening for the manually-operated gate on the medicine arm, because limit switch 1 is carried limit signal to controller 2, pumping 5 just can not be turned round, and has avoided misoperation, the danger of generation.
The present invention is by being provided with limit switch 1 in valve handle one side for the medicine arm, and valve handle can open or close limit switch 1; When limit switch 1 had output signal, the coil of described auxiliary reclay 3 can be not charged, and the coil of contactor 4 can be not charged, can not start pumping 5 and supply medicine, avoids misoperation; When valve handle did not contact with limit switch 1, controller 2 makes auxiliary reclay 3 charged with the coil of contactor 4 according to the outside input, can start pumping 5, and was simple in structure, uses easy to operate, safe and reliable; In the time of preventing well that valve from not opening, start pumping 5; Pumping 5 in the running, misoperations such as throttle down; Prevent to bear excess pressure and cause leakage for medicine arm and pumping 5, the assurance person, equipment and Environmental security.
Claims (2)
1. the circuit structure of an interlocking protective device of pump adding system comprises pumping (5) and controller (2); It is characterized in that: the input end of described controller (2) links to each other with limit switch (1), the output terminal of controller (2) links to each other with the coil of auxiliary reclay (3), the contact of described auxiliary reclay (3) links to each other with the coil of contactor (4), and the contact of described contactor (4) links to each other with pumping (5).
2. the circuit structure of interlocking protective device of pump adding system according to claim 1, it is characterized in that: described controller (2) is single-chip microcomputer or PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102370594A CN101881268A (en) | 2010-07-23 | 2010-07-23 | Circuit structure of interlocking protective device of pump adding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102370594A CN101881268A (en) | 2010-07-23 | 2010-07-23 | Circuit structure of interlocking protective device of pump adding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101881268A true CN101881268A (en) | 2010-11-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102370594A Pending CN101881268A (en) | 2010-07-23 | 2010-07-23 | Circuit structure of interlocking protective device of pump adding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101881268A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104331093A (en) * | 2014-08-26 | 2015-02-04 | 中国科学院等离子体物理研究所 | Liquid nitrogen level automatic control device in fusion diagnostic device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU515887A1 (en) * | 1972-08-31 | 1976-05-30 | Предприятие П/Я Г-4372 | Device for remote control of ship electropumps |
| CN2181489Y (en) * | 1993-12-02 | 1994-11-02 | 陈建国 | Elevator door safety interlocking protector |
| CN2249347Y (en) * | 1995-04-26 | 1997-03-12 | 赵大喜 | Over-pressure protection device for pumping delivery pipeline |
| US6220043B1 (en) * | 1998-07-23 | 2001-04-24 | Texas Instruments Incorporated | Apparatus and method for control of a heat pump system |
| CN201327583Y (en) * | 2008-10-17 | 2009-10-14 | 芜湖国睿兆伏电子股份有限公司 | Safeguard system of high pressure pulse modulator |
| CN201739149U (en) * | 2010-07-23 | 2011-02-09 | 高德（无锡）电子有限公司 | Circuit structure of protecting device for pump feeding system |
-
2010
- 2010-07-23 CN CN2010102370594A patent/CN101881268A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU515887A1 (en) * | 1972-08-31 | 1976-05-30 | Предприятие П/Я Г-4372 | Device for remote control of ship electropumps |
| CN2181489Y (en) * | 1993-12-02 | 1994-11-02 | 陈建国 | Elevator door safety interlocking protector |
| CN2249347Y (en) * | 1995-04-26 | 1997-03-12 | 赵大喜 | Over-pressure protection device for pumping delivery pipeline |
| US6220043B1 (en) * | 1998-07-23 | 2001-04-24 | Texas Instruments Incorporated | Apparatus and method for control of a heat pump system |
| CN201327583Y (en) * | 2008-10-17 | 2009-10-14 | 芜湖国睿兆伏电子股份有限公司 | Safeguard system of high pressure pulse modulator |
| CN201739149U (en) * | 2010-07-23 | 2011-02-09 | 高德（无锡）电子有限公司 | Circuit structure of protecting device for pump feeding system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104331093A (en) * | 2014-08-26 | 2015-02-04 | 中国科学院等离子体物理研究所 | Liquid nitrogen level automatic control device in fusion diagnostic device |
| CN104331093B (en) * | 2014-08-26 | 2018-11-02 | 中国科学院等离子体物理研究所 | A kind of liquid nitrogen level automatic control device in fusion diagnostic device |
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Application publication date: 20101110 |