CN211151604U - Mining explosion-proof and intrinsically safe dual-power dual-loop lighting control device - Google Patents
Mining explosion-proof and intrinsically safe dual-power dual-loop lighting control device Download PDFInfo
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- CN211151604U CN211151604U CN201921679504.5U CN201921679504U CN211151604U CN 211151604 U CN211151604 U CN 211151604U CN 201921679504 U CN201921679504 U CN 201921679504U CN 211151604 U CN211151604 U CN 211151604U
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Abstract
The utility model discloses a mining flame proof and intrinsically safe dual-power supply dual-loop lighting control device, including power input end, first loop protector, second loop protector, first loop circuit module, second loop circuit module and power output end, all be equipped with LCD on first loop protector and the second loop protector, be equipped with start button QAO1, start button QAO2, stop button TA01, stop button TA02, contactor auxiliary contact KM3-1 and contactor auxiliary contact KM4-1 on the second loop protector; the first circuit protector is provided with a start button QA1, a start button QA2 and a stop button TA 1. The utility model discloses possess short circuit, insulating early warning, electric leakage shutting and online earth leakage protection function, have the communication protocol format of standard, make things convenient for the network deployment, realize remote control and control, realize uninterrupted lighting power supply output and supervisory equipment uninterrupted power supply function.
Description
Technical Field
The utility model relates to a mine lighting control technical field especially relates to a mining flame proof and safe type dual supply dual circuit lighting control device of essence.
Background
The mining explosion-proof type illumination comprehensive protection switch is widely applied to underground coal mines, the illumination signal comprehensive protection device is suitable for underground coal mines containing coal dust and explosive gases, a power supply of 127V-grade illumination signal equipment is controlled, and the power supply is introduced to 50Hz, 1140V or 660V. The common comprehensive lighting protection transformer is divided into 4KVA, 6KVA, 10KVA, 12.5KVA, 16KVA and the like according to the capacity of the lighting comprehensive protection transformer, the lighting device has the functions of local manual control and automatic power transmission, free selection and use of a common lamp and a sodium lamp, the starting current of the sodium lamp can be kept away, and the terminal protection device can realize the function of long-distance short circuit protection. The long-distance short circuit protection is realized, the signal sampling does not depend on current and is not related to the length of a cable, and the length of the cable can be arbitrarily prolonged within the allowable voltage drop protection distance. And the existing coal mines are all single-loop lighting, part of few coal mines also have double-loop lighting, the single-loop and double-loop lighting are all single power supplies, and once the upper level fails, the switch trips, and the lighting comprehensive protection can immediately cut off power.
As the 127V power supply of the monitoring equipment in the underground coal mine substation mainly comes from a switch or lighting signal comprehensive protection, when a single power supply device has power failure or faults, the power supply of the monitoring equipment cannot work normally without a power supply.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mining flame proof and safe type dual supply dual circuit lighting control device of essence mainly solves following technical problem:
the utility model discloses in for the colliery provide incessant lighting power supply output and supervisory equipment incessant power supply function in the pit, guarantee colliery supervisory equipment's in the pit continuous power supply, the economic loss that effective prevention outage or maintenance brought.
The purpose of the utility model can be realized by the following technical scheme:
a mining explosion-proof and intrinsically safe dual-power-supply dual-loop lighting control device comprises a power input end, a first loop protector, a second loop protector, a first loop circuit module, a second loop circuit module and a power output end, wherein liquid crystal displays are arranged on the first loop protector and the second loop protector, and a starting button QAO1, a starting button QAO2, a stopping button TA01, a stopping button TA02, a contactor auxiliary contact KM3-1 and a contactor auxiliary contact KM4-1 are arranged on the second loop protector; the first loop protector is provided with a starting button QA1, a starting button QA2, a stopping button TA1, a stopping button TA2, a contactor auxiliary contact KM1-1 and a contactor auxiliary contact KM 2-1;
the power supply input end comprises an isolating switch HK1, an isolating switch HK2, a magnetic fuse RD1, a magnetic fuse RD2, a magnetic fuse RD3, a magnetic fuse RD4, a control transformer CT1, a control transformer CT2, an alternating current vacuum contactor KM1 and an alternating current vacuum contactor KM 3;
the power output end comprises an alternating current vacuum contactor KM2, an alternating current vacuum contactor KM4, a dry-type transformer ZB, a current transformer L H1, a current transformer L H2, a three-phase reactor SK1, a three-phase reactor SK2, a leakage filtering module L D1 and a leakage filtering module L D2;
the first loop circuit module comprises an isolating switch HK, a magnetic fuse RD1, a magnetic fuse RD2, a control transformer CT1, an alternating current vacuum contactor KM1, an alternating current vacuum contactor KM2, a dry-type transformer ZB, a current transformer L H1, a three-phase reactor SK1, a leakage filter module 1D 1, a leakage test button SY1, a starting output point SJ1 and a current transformer 1H 1, wherein the leakage filter module 1D 1 is connected in series with the parallel leakage test button SY1 and the three-phase reactor SK1 and then is connected to the current transformer 1H 1, the current transformer 1H 1 is connected in series with an auxiliary coil KM1 of a contactor and then is connected to a secondary coil of the dry-type transformer ZB, the starting output point SJ1, the protection output point BJ 1-2 of the contactor and the auxiliary coil KM1 of the contactor are connected in series and then connected to a primary coil 1 of the control transformer 1 of the dry-type transformer 1;
the second loop circuit module comprises an isolating switch HK2, a magnetic fuse RD3, a magnetic fuse RD4, a control transformer CT2, an alternating current vacuum contactor KM2, a dry-type transformer ZB, a current transformer 2H 2, a three-phase reactor SK2, a leakage filter module 2D 2, a leakage test button SY2, a starting output point SJ2 and a current transformer 2H 2, wherein the leakage filter module 2D 2 is connected with the leakage test button SY2 and the three-phase reactor SK2 in parallel in series and then connected to the current transformer 2H 2, the current transformer 2H 2 is connected with a secondary coil of the dry-type transformer ZB after being connected with the auxiliary coil KM2 of the contactor in series, the starting output point SJ2, the auxiliary contact KM 2-2 of the auxiliary contactor and the secondary coil of the control transformer CT2 after being connected with the auxiliary coil KM2 of the dry-type transformer KM2 in series;
and a loop formed by SJ2, BJ2, an alternating current vacuum contactor KM2 and an alternating current vacuum contactor KM4 is arranged at the joint of the dry-type transformer ZB and the auxiliary coil KM2 of the contactor and the auxiliary coil KM4 of the contactor in the first loop circuit module and the second loop circuit module.
Further, the R1 position on the host intelligent protector is sequentially connected with the leakage filtering module L D2 and the three-phase reactor SK2 in series and then connected to a Xbb phase line, a D11 phase line and a D22 phase line.
Further, the R2 position on the intelligent protector of the standby machine is sequentially connected with the leakage filtering module L D1 and the three-phase reactor SK1 in series and then connected to the Xb phase line, the D1 phase line and the D2 phase line.
Further, the method comprises the following steps: and the D2 phase line and the D22 phase line are connected in series and then are connected with the Xa phase line and the Xaa phase line in parallel.
Further, the method comprises the following steps: the voltage of the primary coil of the dry type transformer is 1140V/660V, and the voltage of the secondary coil of the dry type transformer is 133V.
Further, the method comprises the following steps: the input end of the first loop circuit module is input by X1, X2 and X3 terminals, and the input end of the second loop circuit module is input by X11, X22 and X33 terminals.
Further, the method comprises the following steps: the first loop protector is externally connected with the pilot controller, the contactor auxiliary contact KM2-3 and the intrinsic safety terminal ib, and the intrinsic safety terminal is composed of K1, K2 and K3.
The utility model has the advantages that:
1. the single chip microcomputer is used as core control to realize various protections and controls, and meanwhile, the liquid crystal display screen has a Chinese display function, so that the actual working state of the switch is reflected in real time, and the observation of a user is facilitated;
2. the current setting step length is 0.1A, so that the protection function can more accurately and reliably protect the power supply circuit of the monitoring equipment;
3. when the power failure of the first loop is over and power off, the first loop is automatically switched to the second loop to work, so that the uninterrupted power supply of the monitoring equipment and the power supply of the lighting circuit are realized;
4. the system has the functions of short circuit, insulation early warning, leakage locking, online leakage protection and the like;
5. the system has a standard communication protocol format, is convenient for networking, and realizes remote control and monitoring;
6. the practical problems of uninterrupted lighting power supply output, uninterrupted power supply function of monitoring equipment and the like are realized;
7. the dual power supply is introduced, the dual loop output is realized, and two paths of power supplies can be introduced for power supply and two paths of loop output are simultaneously introduced. Two power supplies are introduced, each isolation switch selectively connects or disconnects the power supply, the two power supplies are respectively attracted by the control transformer of each circuit through the vacuum alternating current contactor KM1 and the protector power supply selection contactor which supply power to two circuits, each circuit power supply can supply power to the dry type transformer ZB only through the attraction of the contactor of each circuit, after the dry type transformer ZB is electrified, the two circuits can independently control the vacuum alternating current contactor KM2 to attract, and the dry type transformer ZB outputs 127V power through the vacuum alternating current contactor KM2 to supply power to external lighting and monitoring equipment; the vacuum ac contactor KM1 of two return circuits is blocked, only one can the actuation, when starting, when outage or other trouble appear in arbitrary return circuit power, vacuum ac contactor KM1 disconnection, two loop protector homoenergetic receive the signal, disconnection return circuit protector disconnection start-up instruction, another return circuit protector sends start-up instruction, automatic switch-over is to another power, realize uninterrupted power supply, the protector is supplied power simultaneously through control transformer output 15V voltage by two way power, even only power of the same way, also can control two way protectors simultaneously, and then control 2 vacuum ac contactor KM2, select return circuit output.
Drawings
The present invention will be further described with reference to the accompanying drawings.
FIG. 1 is an overall circuit diagram of the dual-power dual-loop lighting control device of the utility model;
FIG. 2 is a circuit diagram of a first loop in the mining flameproof and intrinsically safe dual-power dual-loop lighting control device of the utility model;
FIG. 3 is a circuit diagram of a second loop in the flame-proof and intrinsically safe dual-power dual-loop lighting control device for mining.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 3, the mining explosion-proof and intrinsically safe dual-power-supply dual-loop lighting control device comprises a power supply input end, a first loop protector, a second loop protector, a first loop circuit module, a second loop circuit module and a power supply output end, wherein liquid crystal displays are arranged on the first loop protector and the second loop protector, and a start button QAO1, a start button QAO2, a stop button TA01, a stop button TA02, a contactor auxiliary contact KM3-1 and a contactor auxiliary contact KM4-1 are arranged on the second loop protector; the first loop protector is provided with a starting button QA1, a starting button QA2, a stopping button TA1, a stopping button TA2, a contactor auxiliary contact KM1-1 and a contactor auxiliary contact KM 2-1;
the power supply input end comprises an isolating switch HK1, an isolating switch HK2, a magnetic fuse RD1, a magnetic fuse RD2, a magnetic fuse RD3, a magnetic fuse RD4, a control transformer CT1, a control transformer CT2, an alternating current vacuum contactor KM1 and an alternating current vacuum contactor KM 3;
the power output end comprises an alternating current vacuum contactor KM2, an alternating current vacuum contactor KM4, a dry-type transformer ZB, a current transformer L H1, a current transformer L H2, a three-phase reactor SK1, a three-phase reactor SK2, a leakage filtering module L D1 and a leakage filtering module L D2;
the first loop circuit module comprises an isolating switch HK, a magnetic fuse RD1, a magnetic fuse RD2, a control transformer CT1, an alternating current vacuum contactor KM1, an alternating current vacuum contactor KM2, a dry-type transformer ZB, a current transformer L H1, a three-phase reactor SK1, a leakage filter module 1D 1, a leakage test button SY1, a starting output point SJ1 and a current transformer 1H 1, wherein the leakage filter module 1D 1 is connected in series with the parallel leakage test button SY1 and the three-phase reactor SK1 and then is connected to the current transformer 1H 1, the current transformer 1H 1 is connected in series with an auxiliary coil KM1 of a contactor and then is connected to a secondary coil of the dry-type transformer ZB, the starting output point SJ1, the protection output point BJ 1-2 of the contactor and the auxiliary coil KM1 of the contactor are connected in series and then connected to a primary coil 1 of the control transformer 1 of the dry-type transformer 1;
the second loop circuit module comprises an isolating switch HK2, a magnetic fuse RD3, a magnetic fuse RD4, a control transformer CT2, an alternating current vacuum contactor KM2, a dry-type transformer ZB, a current transformer 2H 2, a three-phase reactor SK2, a leakage filter module 2D 2, a leakage test button SY2, a starting output point SJ2 and a current transformer 2H 2, wherein the leakage filter module 2D 2 is connected with the leakage test button SY2 and the three-phase reactor SK2 in parallel in series and then connected to the current transformer 2H 2, the current transformer 2H 2 is connected with a secondary coil of the dry-type transformer ZB after being connected with the auxiliary coil KM2 of the contactor in series, the starting output point SJ2, the auxiliary contact KM 2-2 of the auxiliary contactor and the secondary coil of the control transformer CT2 after being connected with the auxiliary coil KM2 of the dry-type transformer KM2 in series;
and a loop formed by SJ2, BJ2, an alternating current vacuum contactor KM2 and an alternating current vacuum contactor KM4 is arranged at the joint of the dry-type transformer ZB and the auxiliary coil KM2 of the contactor and the auxiliary coil KM4 of the contactor in the first loop circuit module and the second loop circuit module.
The intelligent protection system comprises a main machine intelligent protector, a leakage filter module L D2, a three-phase reactor SK2, a standby machine intelligent protector, a leakage filter module L D1, a three-phase reactor SK1, an Xb phase line, a D1 phase line and a D2 phase line, wherein the R1 of the main machine intelligent protector is sequentially connected with the leakage filter module L D2 and the three-phase reactor SK2 in series and then connected with the same, the D2 phase line and the three-phase reactor SK1 are sequentially connected with the same in series and then connected with the same, the D2 phase line and the D2 phase line are connected with the same in parallel, the voltage of a primary coil of a dry type transformer is 1140V/660V, the voltage of a secondary coil of the dry type transformer is 133V, the input end of a circuit module of a first loop is input terminal X2, an X2 terminal, the input end of a second loop circuit module is input terminal X2, an X2 terminal and a second loop control auxiliary contactor KM, KM.
The working principle is as follows: when the dry-type transformer ZB is used, the first loop and the second loop are respectively input from X1, X2, X3, X11, X22 and X33 terminals, and the dry-type transformer ZB can be reached only when an isolating switch and a contactor of the loop are in a closed point state, so that 133V voltage is output. Magnetic fuses RD1, RD2, RD3 and RD4 play a role in protecting the first loop and the second loop respectively; the contactor is powered by 133V voltage output by a control transformer, if the contactor needs to be electrically pulled in, a starting 1 output is required to be in a normally closed state, namely a symbol 'SJ 1' in figure 1, a protecting 1 output is in a normally closed state, namely a symbol 'BJ 1' in figure 1, an emergency stop button is in a normally closed state, namely a symbol 'TA 3' or 'TA 03' in figure 1, and an auxiliary contact of the contactor of the other loop control power supply input part is in a normally closed state, namely a symbol 'KM 1-2' or 'KM 3-2' in figure 1; the 'start 1 output' is in a normally open state in a normal state, when a start button is pressed, namely a symbol 'QA 1' or 'QA 01' 1 in the figure 1, the protector receives a start signal, the 'start 1 output' of a corresponding loop is closed, and when a stop button is pressed, namely a symbol 'TA 1' or 'TA 01' in the figure 1, the protector receives a stop signal, and the 'start 1 output' of the corresponding loop is disconnected; the protection 1 output is in a normally open state under a normal state, the protector is automatically attracted when electrified, and the protection circuit is automatically disconnected when faults such as short circuit and the like occur in the circuit; the two contactors of the power input part are controlled to be locked, the two contactors are in a normally closed state in a normal state, when one contactor is closed, the normally closed contact is changed into a normally open contact, and the other contactor lacks a normally closed contact condition, so that the closing cannot be performed, and the power is prevented from being short-circuited; the emergency stop button is in a normally closed state in a normal state, and is pressed down when a fault occurs, the contactor is disconnected, the power supply is disconnected, and a stop signal is sent to the protector;
the dry-type transformer ZB is electrified to output two 133V voltages for supplying power to lighting and monitoring equipment, the alternating current vacuum contactor KM2 and the alternating current vacuum contactor KM4 are used for supplying power, the alternating current vacuum contactor KM2 and the alternating current vacuum contactor KM4 respectively control whether the loop outputs 133V voltage, under the condition that the dry-type transformer ZB normally outputs 133V voltage, the alternating current vacuum contactor KM2 and the alternating current vacuum contactor KM4 are electrified and attracted, the ' starting 1 output ' is in a normally closed state, namely a symbol SJ2 ' and a ' protection 1 output ' are in a normally closed state in the figure 1, namely a symbol BJ2 in the figure 1 is used for protecting and protecting the power input part in a same way as the power input part, a current transformer L H1 and a current transformer L H2 are respectively used for detecting and protecting three-phase current output of two loops, the protector can be checked in real time, a three-phase reactor and a leakage module in the two loops are used for detecting leakage, when a fault occurs, the voltage of the three-phase reactor is not used for sending a signal.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.
Claims (5)
1. A mining explosion-proof and intrinsically safe dual-power-supply dual-loop lighting control device comprises a power input end, a first loop protector, a second loop protector, a first loop circuit module, a second loop circuit module and a power output end, and is characterized in that liquid crystal displays are arranged on the first loop protector and the second loop protector, and a starting button QAO1, a starting button QAO2, a stopping button TA01, a stopping button TA02, a contactor auxiliary contact KM3-1 and a contactor auxiliary contact KM4-1 are arranged on the second loop protector; the first loop protector is provided with a starting button QA1, a starting button QA2, a stopping button TA1, a stopping button TA2, a contactor auxiliary contact KM1-1 and a contactor auxiliary contact KM 2-1;
the power supply input end comprises an isolating switch HK1, an isolating switch HK2, a magnetic fuse RD1, a magnetic fuse RD2, a magnetic fuse RD3, a magnetic fuse RD4, a control transformer CT1, a control transformer CT2, an alternating current vacuum contactor KM1 and an alternating current vacuum contactor KM 3;
the power output end comprises an alternating current vacuum contactor KM2, an alternating current vacuum contactor KM4, a dry-type transformer ZB, a current transformer L H1, a current transformer L H2, a three-phase reactor SK1, a three-phase reactor SK2, a leakage filtering module L D1 and a leakage filtering module L D2;
the first loop circuit module comprises an isolating switch HK, a magnetic fuse RD1, a magnetic fuse RD2, a control transformer CT1, an alternating current vacuum contactor KM1, an alternating current vacuum contactor KM2, a dry-type transformer ZB, a current transformer L H1, a three-phase reactor SK1, a leakage filter module 1D 1, a leakage test button SY1, a starting output point SJ1 and a current transformer 1H 1, wherein the leakage filter module 1D 1 is connected in series with the parallel leakage test button SY1 and the three-phase reactor SK1 and then is connected to the current transformer 1H 1, the current transformer 1H 1 is connected in series with an auxiliary coil KM1 of a contactor and then is connected to a secondary coil of the dry-type transformer ZB, the starting output point SJ1, the protection output point BJ 1-2 of the contactor and the auxiliary coil KM1 of the contactor are connected in series and then connected to a primary coil 1 of the control transformer 1 of the dry-type transformer 1;
the second loop circuit module comprises an isolating switch HK2, a magnetic fuse RD3, a magnetic fuse RD4, a control transformer CT2, an alternating current vacuum contactor KM2, a dry-type transformer ZB, a current transformer 2H 2, a three-phase reactor SK2, a leakage filter module 2D 2, a leakage test button SY2, a starting output point SJ2 and a current transformer 2H 2, wherein the leakage filter module 2D 2 is connected with the leakage test button SY2 and the three-phase reactor SK2 in parallel in series and then connected to the current transformer 2H 2, the current transformer 2H 2 is connected with a secondary coil of the dry-type transformer ZB after being connected with the auxiliary coil KM2 of the contactor in series, the starting output point SJ2, the auxiliary contact KM 2-2 of the auxiliary contactor and the secondary coil of the control transformer CT2 after being connected with the auxiliary coil KM2 of the dry-type transformer KM2 in series;
a loop formed by SJ2, BJ2, an alternating current vacuum contactor KM2 and an alternating current vacuum contactor KM4 is arranged at the joint of the dry-type transformer ZB and the auxiliary coil KM2 of the contactor and the auxiliary coil KM4 of the contactor in the first loop circuit module and the second loop circuit module;
the input end of the first loop circuit module is input by connecting terminals X1, X2 and X3, the input end of the second loop circuit module is input by connecting terminals X11, X22 and X33, the second loop protector is externally connected with a pilot controller, a contactor auxiliary contact KM4-3 and an intrinsic safety terminal ib, the intrinsic safety terminal is composed of K11, K22 and K33, the first loop protector is externally connected with a pilot controller, a contactor auxiliary contact KM2-3 and an intrinsic safety terminal ib, and the intrinsic safety terminal is composed of K1, K2 and K3.
2. The mining explosion-proof and intrinsically safe dual-power-supply dual-loop lighting control device of claim 1, characterized in that a R1 position on the host intelligent protector is sequentially connected in series with a leakage filter module L D2 and a three-phase reactor SK2 and then connected to a Xbb phase line, a D11 phase line and a D22 phase line.
3. The mining explosion-proof and intrinsically safe dual-power-supply dual-loop lighting control device of claim 1, characterized in that an R2 position on the backup intelligent protector is sequentially connected in series with a leakage filter module L D1 and a three-phase reactor SK1 and then connected to an Xb phase line, a D1 phase line and a D2 phase line.
4. The mining flameproof and intrinsically safe dual-power double-loop lighting control device of claim 1, wherein a D2 phase line and a D22 phase line are connected in series and then connected with an Xa phase line and an Xaa phase line in parallel.
5. The mining flameproof and intrinsically safe dual-power-supply dual-loop lighting control device of claim 1, wherein the voltage of a primary coil of the dry-type transformer is 1140V/660V, and the voltage of a secondary coil of the dry-type transformer is 133V.
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| CN201921679504.5U CN211151604U (en) | 2019-10-09 | 2019-10-09 | Mining explosion-proof and intrinsically safe dual-power dual-loop lighting control device |
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| CN201921679504.5U CN211151604U (en) | 2019-10-09 | 2019-10-09 | Mining explosion-proof and intrinsically safe dual-power dual-loop lighting control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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