CN204419538U - Working surface pumping plant lock-in control system - Google Patents
Working surface pumping plant lock-in control system Download PDFInfo
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- CN204419538U CN204419538U CN201420853081.5U CN201420853081U CN204419538U CN 204419538 U CN204419538 U CN 204419538U CN 201420853081 U CN201420853081 U CN 201420853081U CN 204419538 U CN204419538 U CN 204419538U
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- Prior art keywords
- pumping plant
- control system
- normally
- working surface
- switch
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- 238000005086 pumping Methods 0.000 title claims abstract description 55
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Abstract
The utility model discloses a kind of working surface pumping plant lock-in control system, wherein, comprise: master controller, the first sensitive switch and the second sensitive switch, described first sensitive switch comprises the first normally-closed contact, described second sensitive switch comprises the second normally-closed contact, described master controller is provided with the master switch for controlling described pumping plant locking, described first normally-closed contact, the second normally-closed contact and described master switch are cascaded.The working surface pumping plant lock-in control system that the utility model provides is by arranging the first sensitive switch and the second sensitive switch is connected with the master switch of master controller, solve the problem that in prior art, pumping plant lock-in control point is single, energy is locking pumping plant in time, avoid the expansion of accident, ensure that the reliability of system.
Description
Technical field
The utility model relates to the control of working surface pumping plant, particularly relates to a kind of working surface pumping plant lock-in control system.
Background technique
At the working surface of coal mining, usually need pumping plant to provide power.Pumping plant generally includes multiple emulsion pump, arranges a master console to control startup and the locking of these emulsion pumps.
In production and maintenance process, the phenomenon of high-pressure liquid tube generation booster can occur usually, if the operator of operation master console do not exist, then working surface can not in time by pumping plant locking, and the personnel that therefore cause injure the expansion with accident.
Therefore, working surface pumping plant lock-in control Systematical control point of the prior art is single, occurs that accident can not very first time locking, affects production safety.
Model utility content
The utility model provides a kind of working surface pumping plant lock-in control system, to solve the problems of the prior art, improves the reliability of pumping plant lock-in control.
The utility model provides a kind of working surface pumping plant lock-in control system, wherein, comprise: master controller, the first sensitive switch and the second sensitive switch, described first sensitive switch comprises the first normally-closed contact, described second sensitive switch comprises the second normally-closed contact, described master controller is provided with the master switch for controlling described pumping plant locking, described first normally-closed contact, the second normally-closed contact and described master switch are cascaded.
Working surface pumping plant lock-in control system as above, wherein, preferably: described first sensitive switch also comprises the 3rd normally-closed contact, and described control system also comprises warning light, described 3rd normally-closed contact is connected with described warning light.
Working surface pumping plant lock-in control system as above, wherein, preferably: described warning light is light emitting diode.
Working surface pumping plant lock-in control system as above, wherein, preferably: also comprise protective resistance, described protective resistance is connected with described 3rd normally-closed contact and described light emitting diode.
Working surface pumping plant lock-in control system as above, wherein, preferably: described protective resistance is 1000 ohm.
Working surface pumping plant lock-in control system as above, wherein, preferably: also comprise throw over switch, described throw over switch is connected with described master switch.
The working surface pumping plant lock-in control system that the utility model provides is by arranging the first sensitive switch and the second sensitive switch is connected with the master switch of master controller, solve the problem that in prior art, pumping plant lock-in control point is single, energy is locking pumping plant in time, avoid the expansion of accident, ensure that the reliability of system.
Accompanying drawing explanation
The working surface pumping plant lock-in control system architecture schematic diagram that Fig. 1 provides for the utility model embodiment.
Embodiment
Below in conjunction with embodiment, the utility model is described in detail.The identical reference character of wherein identical component represents.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometrical center respectively.
The working surface pumping plant lock-in control system architecture schematic diagram that Fig. 1 provides for the utility model embodiment, the utility model embodiment provides a kind of working surface pumping plant lock-in control system, wherein, comprise: master controller 9, first sensitive switch 1 and the second sensitive switch 2, described first sensitive switch 1 comprises the first normally-closed contact 11, described second sensitive switch 2 comprises the second normally-closed contact 21, described master controller 9 is provided with the master switch 6 for controlling described pumping plant locking, described first normally-closed contact 11, second normally-closed contact 21 and described master switch 6 are cascaded.
Master controller 9 is identical with master controller of the prior art, is provided with the master switch 6 for controlling described pumping plant locking.Due to distant apart from working surface pumping plant of master controller 9, therefore above-mentioned first sensitive switch 1 and the second sensitive switch 2 be set, lay respectively at the position of head and tail.When the position at master controller 9 place, nobody controls, if pumping plant has an accident, can operate the first sensitive switch 1 or the second sensitive switch 2 to close pumping plant at head or tail, Accident prevention expands, solve the monotony of pumping plant lock-in control in prior art, improve the reliability of system.
First sensitive switch 1, second sensitive switch 2 can utilize existing first terminal box 3 and the second terminal box 5 to realize with connecting of the master switch 6 on master controller.
Preferably, the first sensitive switch 1 also comprises the 3rd normally-closed contact 12, and described control system also comprises warning light 4, and described 3rd normally-closed contact 12 is connected with described warning light 4.When the first sensitive switch 1 disconnects, pumping plant locking, now warning light 4 brightens, and makes to be positioned at people at a distance and can learn that pumping plant is blocked.It will be appreciated by persons skilled in the art that the second sensitive switch 2 also can adopt warning light of connecting in the same way, do not do concrete restriction at this.Warning light can be light emitting diode, also can be other light-emitting components.
Further, this control system also comprises protective resistance 8, and described protective resistance 8 is connected with described 3rd normally-closed contact 12 and described light emitting diode, for protecting this series circuit.
On the basis of above-described embodiment, the working surface pumping plant lock-in control system that the utility model embodiment provides also comprises throw over switch 7, and this throw over switch 7 is connected with master switch 6.When throw over switch 7 is opened, whole system normally works, and can carry out lock-in control by any one in master switch 6, first sensitive switch 1 and the second sensitive switch 2 to pumping plant.When throw over switch 7 closes, then can throw the first sensitive switch 1 and the second sensitive switch 2 away, only be controlled the locking of pumping plant by master switch 6.
Particularly, respectively installing a model at frame head and tail is TK230B type sensitive switch, connects a light emitting diode, the resistance of one 1000 ohm, a throw over switch in the pumping plant master controller of operating console.
The normally closed node strings of normally closed node and frame head and tail sensitive switch in operating console pumping plant master controller is linked togather, the normally closed node strings of light emitting diode, 1000 Ohmic resistances and tail button is linked togather, as shown in Figure 1 simultaneously.First sensitive switch 1 and the second sensitive switch 2 are closed state under normal circumstances, if at this moment master switch 6 closes, pumping plant can normally start, the warning light 4 being simultaneously positioned at tail is luminous, when working surface generation booster or other urgency need termination of pumping, any one switch of head, tail, operating console is pressed, and now pumping plant can be blocked.Operating console driver can judge head or tail locking pumping plant by the state of light emitting diode simultaneously.In addition, in master controller 9, separately add throw over switch 7, additional sensitive switch can have been got rid of by this throw over switch 7 when additional control system breaks down, improve the reliability of system cloud gray model.
The working surface pumping plant lock-in control system that the utility model embodiment provides is by arranging the first sensitive switch and the second sensitive switch is connected with the master switch of master controller, solve the problem that in prior art, pumping plant lock-in control point is single, energy is locking pumping plant in time, avoid the expansion of accident, ensure that the reliability of system.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment's technological scheme of the utility model.
Claims (6)
1. a working surface pumping plant lock-in control system, it is characterized in that, comprise: master controller, the first sensitive switch and the second sensitive switch, described first sensitive switch comprises the first normally-closed contact, described second sensitive switch comprises the second normally-closed contact, described master controller is provided with the master switch for controlling described pumping plant locking, described first normally-closed contact, the second normally-closed contact and described master switch are cascaded.
2. working surface pumping plant lock-in control system according to claim 1, is characterized in that: described first sensitive switch also comprises the 3rd normally-closed contact, and described control system also comprises warning light, and described 3rd normally-closed contact is connected with described warning light.
3. working surface pumping plant lock-in control system according to claim 2, is characterized in that: described warning light is light emitting diode.
4. working surface pumping plant lock-in control system according to claim 3, it is characterized in that: also comprise protective resistance, described protective resistance is connected with described 3rd normally-closed contact and described light emitting diode.
5. working surface pumping plant lock-in control system according to claim 4, is characterized in that: described protective resistance is 1000 ohm.
6., according to the arbitrary described working surface pumping plant lock-in control system of claim 1-5, it is characterized in that: also comprise throw over switch, described throw over switch is connected with described master switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853081.5U CN204419538U (en) | 2014-12-29 | 2014-12-29 | Working surface pumping plant lock-in control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853081.5U CN204419538U (en) | 2014-12-29 | 2014-12-29 | Working surface pumping plant lock-in control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419538U true CN204419538U (en) | 2015-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420853081.5U Active CN204419538U (en) | 2014-12-29 | 2014-12-29 | Working surface pumping plant lock-in control system |
Country Status (1)
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| CN (1) | CN204419538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201808A (en) * | 2015-10-22 | 2015-12-30 | 中国神华能源股份有限公司 | Pump controller, PLC platform and sea water desalting plant |
-
2014
- 2014-12-29 CN CN201420853081.5U patent/CN204419538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201808A (en) * | 2015-10-22 | 2015-12-30 | 中国神华能源股份有限公司 | Pump controller, PLC platform and sea water desalting plant |
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| GR01 | Patent grant |