CN213845087U - Electromagnetic induction limiting device for mining high-voltage explosion-proof switch - Google Patents
Electromagnetic induction limiting device for mining high-voltage explosion-proof switch Download PDFInfo
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- CN213845087U CN213845087U CN202022764395.6U CN202022764395U CN213845087U CN 213845087 U CN213845087 U CN 213845087U CN 202022764395 U CN202022764395 U CN 202022764395U CN 213845087 U CN213845087 U CN 213845087U
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Abstract
The utility model discloses a mining high pressure explosion-proof switch electromagnetic induction stop device relates to colliery electrical protection field. The device is designed on the basis of mining intelligent comprehensive protector, mainly includes power module, electromagnetism proximity switch and relay, and electromagnetism proximity switch is located the fixed distance department of high voltage circuit breaker's isolation hand (hold), and fixed distance is electromagnetism proximity switch's induction distance, and electromagnetism proximity switch is connected with auxiliary relay, and the theory of operation of whole device is: when the metal object moves close to the induction distance range, the proximity switch is closed, so that the coil of the relay is electrified and attracted, the two groups of auxiliary normally open contacts are closed, one group of auxiliary normally open contacts is used for controlling to conduct the power supply of the indicator light, and the other group of auxiliary normally open contacts is used for closing the button switch breaker to close the switch control loop. The utility model discloses simple installation is convenient, easy to operate, safe and reliable, avoids the switch circuit breaker to lead to the large tracts of land to have a power failure in the pit because of contact failure, the effectual emergence that prevents the colliery and push up the electric accident in the pit.
Description
Technical Field
The utility model relates to a colliery electrical protection field specifically is a mining high pressure explosion-proof switch electromagnetic induction stop device.
Background
In the actual operation process of the high-voltage power grid, due to the design defects or some quality problems of the explosion-proof high-voltage switch for the coal mine, or the underground operation environment is complex, the switch equipment can be placed in uneven places sometimes, the closing of the plug pin of the isolation trolley of the switch circuit breaker is not in place or is shifted due to the collision of a vehicle skip car, blasting vibration and the like, more importantly, the operation personnel have the reason of improper operation, the closing of the main plug pin of the isolation main of the switch circuit breaker is not completed in place frequently, the metal surface of the main plug pin is gasified, the insulation strength of the insulation porcelain sleeve of the isolation main plug pin is reduced, the main contact of the isolation main plug pin continuously generates heat, ablates or burns arcs, the insulation performance is lost, the plug is directly grounded with the inner wall of the switch, and the plug is in short circuit with the plug of the other phase seriously, so that the electric leakage and short circuit accidents are caused, the large-area power failure in the underground is caused, and even the 35KV transformer substation is tripped on the ground after being electrified. In order to prevent the situation from happening again, a protection device needs to be designed for the coal mine explosion-proof high-voltage switch, so that the coal mine explosion-proof high-voltage switch can be switched on and powered only under the condition that the coal mine explosion-proof high-voltage switch is closed in place, and the coal mine underground power jacking accident is prevented.
Disclosure of Invention
The utility model discloses a solve the colliery mining explosion-proof high voltage switch in pit often closed not in place and cause the problem that the top electricity accident took place, provide a mining high voltage explosion-proof switch electromagnetic induction stop device.
The utility model discloses an invention point is not mining intelligent integrated protector, and this is the protector that has been using in the pit in the colliery, carries out electronic induction stop device's research and development and design on the basis of protector, so the protector is not key, the utility model discloses mainly through having increased electromagnetism proximity switch so that sense the combined floodgate and target in place to start the effect of follow-up consumer.
The utility model discloses a realize through following technical scheme: the utility model provides a mining high pressure explosion-proof switch electromagnetic induction stop device, includes power module, electromagnetism proximity switch and auxiliary relay, electromagnetism proximity switch is located the fixed distance department of high voltage circuit breaker's isolation hand (hold), fixed distance is electromagnetism proximity switch's induction distance, electromagnetism proximity switch is connected with auxiliary relay, electromagnetism proximity switch and auxiliary relay are supplied power by power module, the last pilot lamp that still is provided with of power module, concrete circuit connection structure is as follows: the power module adopts a rectification power box, the rectification power box is connected to an input power supply through an isolating switch L1 and a fuse FU, the voltage of the input power supply is 65V-265V wide voltage, and the output voltage is 5V, 12V or 36V direct-current voltage; the input power supply is also connected with an isolation bolt, the isolation bolt is used for controlling the power supply of the mining intelligent integrated protector, and the U of the mining intelligent integrated protectoraAnd UbThe ZD contactor is connected with an input power supply, and two auxiliary normally open contacts are ZD-1 and ZD-2 respectively; one end of the auxiliary normally open contact ZD-2 is connected to the closed end of the mining intelligent comprehensive protector, and the other end is connected to the common end of the mining intelligent comprehensive protector; the 12V direct-current voltage port supplies power to the electromagnetic proximity switch, the electromagnetic proximity switch is grounded through a grounding end of the power supply module, and the electromagnetic proximity switch is connected with the intermediate relay ZJ in parallel; the intermediate relay is provided with two auxiliary normally open contacts ZJ-1 and ZJ-2 respectively; the 5V direct currentThe voltage is connected to the indicator light through an auxiliary normally open contact ZJ-2 of the intermediate relay ZJ; the 36V direct-current voltage is connected with a closing button HA, the closing button HA is connected with an auxiliary normally open contact ZJ-1 in series, and the ZD contactor is connected with the auxiliary normally open contact ZD-1 in parallel and then connected with the auxiliary normally open contact ZJ-1 in series through a switch in the mining intelligent comprehensive protector; and the ZD contactor and the auxiliary normally open contact ZD-1 are grounded through the grounding end of the power module.
The utility model relates to a mining high pressure explosion-proof switch electromagnetic induction stop device, design on the basis of mining intelligent comprehensive protector, mainly include power module, electromagnetism proximity switch and relay, electromagnetism proximity switch is located the fixed distance department of high voltage circuit breaker's isolation hand (hold), fixed distance is the induction distance of electromagnetism proximity switch, electromagnetism proximity switch is connected with auxiliary relay, electromagnetism proximity switch utilizes conductive object when being close this can produce electromagnetic field proximity switch, make the inside vortex that produces of object, the vortex is reverse to proximity switch, make the inside circuit parameter of switch change, it has or not conductive object to move to discern from this, and then control switch's expert or disconnected, the object that this kind of proximity switch can detect must be the electric conductor, so the theory of operation of whole device does: when the metal object moves close to the induction distance range, the proximity switch is closed, so that the coil of the relay is electrified and attracted, the two groups of normally open contacts are closed, one group of normally open contacts controls to conduct the power supply of the indicator light, and the other group of normally open contacts closes the high-voltage switch closing control loop. The electromagnetic proximity switch and the intermediate relay are powered by the power module, the power module is further provided with an indicator light, and the specific circuit principle is as follows: the power module adopts the rectification power supply box, and the rectification power supply box passes through isolator L1 and insurance FU and connects in input power, and input mains voltage is 65V-265V wide voltage, and output voltage is 5V, 12V, 36V direct current voltage, and 5V is the pilot lamp power supply usually, and 12V is usually for auxiliary relay and electromagnetism proximity switch power supply, and 36V direct current voltage is the ZD contactor power supply. The input power supply is also connected with an isolation bolt which is used for controlling the power supply of the mining intelligent integrated protector and the U of the mining intelligent integrated protectoraAnd UbZD contactor is connected to two poles of input power supply and is provided with two auxiliary normally open contactsZD-1 and ZD-2 respectively, the auxiliary normally open contact ZD-1 is used for closing the contactor, one end of the auxiliary normally open contact ZD-2 is connected with the closed end of the mining intelligent comprehensive protector, and the other end is connected with the public end of the mining intelligent comprehensive protector (the concrete function is related to the synthesizer, the utility model discloses need not to explain); the 12V direct-current voltage port supplies power to the electromagnetic proximity switch, the electromagnetic proximity switch is grounded through a grounding end of the power supply module, the electromagnetic proximity switch is connected with the intermediate relay ZJ in parallel, and the intermediate relay is used for controlling the conduction of the indicator lamp and the closing of the high-voltage circuit breaker closing control loop; the intermediate relay is provided with two auxiliary normally-open contacts ZJ-1 and ZJ-2 respectively, the auxiliary normally-open contact ZJ-2 is used for conducting an indicator light, and the auxiliary normally-open contact ZJ-1 is used for a switching-on control loop, so that the indicator light and the auxiliary normally-open contact ZJ-2 are connected in series and then are connected to a 5V direct-current voltage end of the power module; 36V direct current voltage connects closing button HA, closing button HA establishes ties with supplementary normally open contact ZJ-1, supplementary normally open contact ZJ-1 is closed, closing button HA closes down, ZD contactor and supplementary normally open contact ZD-1 establish ties through the switch in the mining intelligent integrated protector with supplementary normally open contact ZJ-1 after connecting in parallel, both make whole return circuit circular telegram jointly for contactor and relay, ZD contactor and supplementary normally open contact ZD-1 pass through power module's earthing terminal ground connection. The utility model discloses the specific operation does: when a main isolating female bolt (namely an isolating handle in the attached drawing 1) of a switch breaker is closed in place, the electromagnetic proximity switch is switched on when the electromagnetic proximity switch senses that the electromagnetic proximity switch reaches an induction distance, an intermediate relay is electrified and attracted, and two auxiliary normally open contacts ZJ-1 and ZJ-2 of the electromagnetic proximity switch are closed, so that an indicator lamp connected with ZJ-2 in series is lightened, a closing button HA switch breaker can normally close and supply power, and meanwhile, an intelligent comprehensive protector for ZD contactor mine control is started to play a role in protecting the whole circuit (the general protector is connected with a wind power, a watt power and a public line and also output to a display, and is connected to a computer through a 485 communication interface, and the position is a non-invention point, so that detailed description is omitted); if the main isolating bolt of the switch circuit breaker is not closed in place and the induction distance of the electromagnetic proximity switch cannot be reached, the electromagnetic proximity switch is not switched onAnd the intermediate relay can not be electrified for actuation, so that the two auxiliary normally open contacts ZJ-1 and ZJ-2 are both in an open state, and the whole circuit can not be switched on even if a closing button is pressed.
Preferably, the wide voltage of 65V-265V of the rectifying power supply box is the voltage of 100V directly output by the high-voltage switch voltage transformer.
Preferably, the electromagnetic proximity switch is an eddy current type proximity switch.
Compared with the prior art the utility model discloses following beneficial effect has: the utility model provides a mining high pressure explosion-proof switch electromagnetic induction stop device, the installation is simple and convenient, easy to operate, safety and reliability, can drop into in-service use, look over circuit breaker isolation trolley position in real time, prevent isolation trolley derail or skew, the frequency of high tension switchgear emergence top electricity accident because of the closed off-position of circuit breaker has been reduced, the stability of high tension switchgear operation has been improved, the result of application is showing, practice thrift 20 more ten thousand yuan of cost, avoid the switch circuit breaker to lead to the large tracts of land in the pit to have a power failure because of contact failure, the effectual emergence that prevents the electricity accident that pushes up in the pit of colliery.
Drawings
Fig. 1 is a circuit module connection diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The utility model provides a mining high pressure explosion-proof switch electromagnetic induction stop device, as shown in fig. 1 and fig. 2, including power module, electromagnetism proximity switch and auxiliary relay, electromagnetism proximity switch is located the fixed distance department of high voltage circuit breaker's isolation hand (hold), fixed distance is electromagnetism proximity switch's induction distance, electromagnetism proximity switch is connected with auxiliary relay, electromagnetism proximity switch and auxiliary relay are supplied power by power module, the last pilot lamp that still is provided with of power module, concrete circuit connection structure as follows: the power module adopts a rectification power supply box, the rectification power supply box is connected to an input power supply through an isolating switch L1 and a safety FU, and the input power supplyThe input voltage is 65V-265V wide voltage, and the output voltage is 5V, 12V and 36V direct-current voltage; the input power supply is also connected with an isolation bolt, the isolation bolt is used for controlling the power supply of the mining intelligent integrated protector, and the U of the mining intelligent integrated protectoraAnd UbThe ZD contactor is connected with an input power supply, and two auxiliary normally open contacts are ZD-1 and ZD-2 respectively; one end of the auxiliary normally open contact ZD-2 is connected to the closed end of the mining intelligent comprehensive protector, and the other end is connected to the common end of the mining intelligent comprehensive protector; the 12V direct-current voltage port supplies power to the electromagnetic proximity switch, the electromagnetic proximity switch is grounded through a grounding end of the power supply module, and the electromagnetic proximity switch is connected with the intermediate relay ZJ in parallel; the intermediate relay is provided with two auxiliary normally open contacts ZJ-1 and ZJ-2 respectively; the 5V direct-current voltage is connected to an indicator lamp through an auxiliary normally-open contact ZJ-2 of an intermediate relay ZJ; the 36V direct-current voltage is connected with a closing button HA, the closing button HA is connected with an auxiliary normally open contact ZJ-1 in series, and the ZD contactor is connected with the auxiliary normally open contact ZD-1 in parallel and then connected with the auxiliary normally open contact ZJ-1 in series through a switch in the mining intelligent comprehensive protector; and the ZD contactor and the auxiliary normally open contact ZD-1 are grounded through the grounding end of the power module.
The preferred scheme is adopted in the embodiment: the wide voltage of 65V-265V of the rectification power supply box is the voltage of 100V directly output by the high-voltage switch voltage transformer; the electromagnetic proximity switch adopts a vortex proximity switch.
The embodiment specifically operates as follows: the isolation switch is closed, the whole power module is powered on, the electromagnetic proximity switch is electrified, when the main isolation female plug (namely an isolation handle in the attached drawing 1) of the switch breaker is closed in place, the electromagnetic proximity switch senses that the main isolation female plug reaches the sensing distance, the electromagnetic proximity switch is switched on, the intermediate relay is electrified and attracted, and two auxiliary normally open contacts ZJ-1 and ZJ-2 of the electromagnetic proximity switch are closed, so that an indicator lamp connected with ZJ-2 in series is lightened, the HA switch breaker can normally switch on and supply power by pressing a switch-on button, and meanwhile, the intelligent comprehensive protector for ZD contactor mine control is started to play a role in protecting the whole circuit; if the closing of the main and female isolating bolts of the switch breaker is not in place, and the induction distance of the electromagnetic proximity switch cannot be reached, the electromagnetic proximity switch is not switched on, the intermediate relay cannot be electrified to be attracted, the two auxiliary normally-open contacts ZJ-1 and ZJ-2 are both in an open state, and the whole circuit cannot be switched on even if the switch-on button is pressed.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a mining high pressure explosion-proof switch electromagnetic induction stop device which characterized in that: including power module, electromagnetism proximity switch and auxiliary relay, electromagnetism proximity switch is located the fixed distance department of high voltage circuit breaker's isolation hand (hold), fixed distance is electromagnetism proximity switch's induction distance, electromagnetism proximity switch is connected with auxiliary relay, electromagnetism proximity switch and auxiliary relay are supplied power by power module, the last pilot lamp that still is provided with of power module, concrete circuit connection structure as follows:
the power module adopts a rectification power box, the rectification power box is connected to an input power supply through an isolating switch L1 and a fuse FU, the voltage of the input power supply is 65V-265V wide voltage, and the output voltage is 5V, 12V or 36V direct-current voltage; the input power supply is also connected with an isolation bolt, the isolation bolt is used for controlling the power supply of the mining intelligent integrated protector, and the U of the mining intelligent integrated protectoraAnd UbThe ZD contactor is provided with two auxiliary normally open contacts ZD-1 and ZD-2 which are respectively connected with an input power supply; one end of the auxiliary normally open contact ZD-2 is connected to the closed end of the mining intelligent comprehensive protector, and the other end is connected to the common end of the mining intelligent comprehensive protector;
the 12V direct-current voltage port supplies power to the electromagnetic proximity switch, the electromagnetic proximity switch is grounded through a grounding end of the power supply module, and the electromagnetic proximity switch is connected with the intermediate relay ZJ in parallel; the intermediate relay is provided with two auxiliary normally open contacts ZJ-1 and ZJ-2 respectively;
the 5V direct-current voltage is connected to an indicator lamp through an auxiliary normally-open contact ZJ-2 of an intermediate relay ZJ;
the 36V direct-current voltage is connected with a closing button HA, the closing button HA is connected with an auxiliary normally open contact ZJ-1 in series, and the ZD contactor is connected with the auxiliary normally open contact ZD-1 in parallel and then connected with the auxiliary normally open contact ZJ-1 in series through a switch in the mining intelligent comprehensive protector; and the ZD contactor and the auxiliary normally open contact ZD-1 are connected to the public end GND negative electrode of the power module.
2. The electromagnetic induction limiting device for the mining high-voltage explosion-proof switch according to claim 1, characterized in that: the input power supply voltage of the rectification power supply box is the voltage of 100V directly output by the high-voltage switch voltage transformer.
3. The electromagnetic induction limiting device for the mining high-voltage explosion-proof switch according to claim 1, characterized in that: the electromagnetic proximity switch adopts a vortex proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022764395.6U CN213845087U (en) | 2020-11-26 | 2020-11-26 | Electromagnetic induction limiting device for mining high-voltage explosion-proof switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022764395.6U CN213845087U (en) | 2020-11-26 | 2020-11-26 | Electromagnetic induction limiting device for mining high-voltage explosion-proof switch |
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| CN213845087U true CN213845087U (en) | 2021-07-30 |
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| CN202022764395.6U Active CN213845087U (en) | 2020-11-26 | 2020-11-26 | Electromagnetic induction limiting device for mining high-voltage explosion-proof switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745038A (en) * | 2021-08-31 | 2021-12-03 | 国网河北省电力有限公司检修分公司 | Isolating switch |
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2020
- 2020-11-26 CN CN202022764395.6U patent/CN213845087U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745038A (en) * | 2021-08-31 | 2021-12-03 | 国网河北省电力有限公司检修分公司 | Isolating switch |
| CN113745038B (en) * | 2021-08-31 | 2023-07-25 | 国网河北省电力有限公司检修分公司 | Isolation switch |
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