CN110601039B - Mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device - Google Patents
Mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device Download PDFInfo
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- CN110601039B CN110601039B CN201910954635.8A CN201910954635A CN110601039B CN 110601039 B CN110601039 B CN 110601039B CN 201910954635 A CN201910954635 A CN 201910954635A CN 110601039 B CN110601039 B CN 110601039B
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- 238000005065 mining Methods 0.000 title claims abstract description 15
- 230000001012 protector Effects 0.000 claims description 25
- 229910052573 porcelain Inorganic materials 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims 2
- 238000005286 illumination Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
- H02B1/48—Mounting of devices therein
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
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Abstract
The invention discloses a mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device, which comprises a support base, wherein a front cavity box body and a rear cavity box body are sequentially and fixedly arranged on the upper surface of the support base from front to back, two wiring terminal wire passing channels which are arranged in the vertical direction are fixedly arranged at positions between the left side and the right side of the front cavity box body and the right side of the rear cavity box body, a wire box is fixedly arranged on the upper surfaces of the front cavity box body and the rear cavity box body, and a wire box cover plate is fixedly arranged on the upper surface of the wire box; the rear surface of back chamber box articulates there is the back shrouding, the bottom inner wall fixed mounting of back chamber box has two parallel arrangement's guide rail support. According to the invention, the locking shaft is matched with the U-shaped groove on the knob, so that a quick door opening structure is realized, the operation safety of an inner body and personnel can be protected, the quick door opening can be realized, the power-off locking can be realized, and the electric leakage locking and the on-line electric leakage protection can be realized by adopting a dual-power dual-circuit.
Description
Technical Field
The invention relates to the technical field of mine lighting devices, in particular to a mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device.
Background
The mining flameproof type lighting comprehensive protection switch is widely applied to underground coal mines, the lighting signal comprehensive protection device is suitable for underground coal mines containing coal dust and explosive gas, a power supply of 127V-level lighting signal equipment is controlled, and the power supply is 50Hz,1140V or 660V. The common lighting device is divided into 4KVA,6KVA,10KVA,12.5KVA,16KVA and the like according to the capacity of the lighting comprehensive protection transformer, has the functions of on-site manual control and automatic power transmission and free selection and use of a common lamp and a sodium lamp, can avoid the starting current of the sodium lamp, and can realize the long-distance short-circuit protection function by wearing the terminal protection device. The long-distance short-circuit protection, the signal sampling is independent of current and cable length, and the protection distance can be arbitrarily prolonged within the allowable range of voltage drop. And the existing coal mines use single-loop illumination, a few coal mines have double-loop illumination, the single-loop illumination and the double-loop illumination are all single power supplies, and once the upper level breaks down, the switch trips, and the illumination comprehensive protection can be immediately powered off.
Because 127V power supply of the monitoring equipment in the underground substation of the coal mine mainly comes from a switch or illumination signal comprehensive protection, when a single power supply equipment has power failure or faults, the power supply of the monitoring equipment cannot work normally without power supply.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide the mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device, which is matched with a U groove on a knob through a locking shaft, so that a quick-opening structure is realized, an internal body and personnel operation safety can be protected, the quick-opening can be realized, a power-off locking can be realized, and electric leakage locking and on-line electric leakage protection can be realized by adopting dual-power dual-loop lighting comprehensive protection device.
The aim of the invention can be achieved by the following technical scheme:
The mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device comprises a supporting bottom bracket, wherein a front cavity box body and a rear cavity box body are sequentially and fixedly arranged on the upper surface of the supporting bottom bracket from front to back, two wiring terminal wire passing channels which are arranged in the vertical direction are fixedly arranged at positions between the left side and the right side of the front cavity box body and the positions between the left side and the right side of the rear cavity box body, a wire box is fixedly arranged on the upper surfaces of the front cavity box body and the rear cavity box body, and a wire box cover plate is fixedly arranged on the upper surface of the wire box;
The rear surface of the rear cavity box body is hinged with a rear sealing plate, two parallel guide rail brackets are fixedly arranged on the inner wall of the bottom end of the rear cavity box body, and a dry-type transformer is fixedly arranged on the upper surfaces of the two guide rail brackets;
The front surface of the front cavity box body is sequentially and fixedly provided with a left door flange and a right door flange from left to right, the side surfaces of the left door flange and the right door flange, which are far away from the center of the front cavity box body, are fixedly provided with a door closing groove, the front surfaces of the left door flange and the right door flange are movably provided with door plates, the positions, which are close to the upper end and the lower end, of the other side surface of the door plates are fixedly provided with door seats, a door rotating shaft is fixedly arranged between the two door seats, the circular arc side surface of the door rotating shaft is sheathed with a handle with a connecting sleeve, one side surface of the door seat is inserted with a movable seat, the positions, which are close to the upper end and the lower end, of the left side surface and the right side surface of the front cavity box body are fixedly provided with hinge seats movably mounted with the movable seat, the lower parts, which are close to the upper hinge seat, the front surface of the front cavity box body is penetrated with a locking shaft, the rear parts, which are close to the locking shaft brackets are fixedly provided with a knob, the circular arc side surface of the rotary knob is fixedly provided with a U groove, the rotary knob is fixedly provided with a rotary knob, the rotary knob is arranged on the side surface, and the rotary knob is fixedly provided with a rotary knob, and the rotary knob is arranged on the side surface, which is close to the rotary knob, and the rotary knob is fixedly provided with a rotary knob, and the rotary knob;
the front cavity box body is characterized in that a front cavity middle partition board for dividing the inner part of the front cavity box body into a left cavity and a right cavity is fixedly arranged in the middle of the inner part of the front cavity box body, the left cavity of the front cavity box body is identical to the inner structure of the right cavity, a cavity core board is fixedly arranged on the inner wall of the rear end of the right cavity of the front cavity box body, a transformer bracket is fixedly arranged on the upper surface of the cavity core board, a current transformer is fixedly arranged on the lower surface of the transformer bracket, two alternating current vacuum contactors, a three-phase reactor and a control transformer are fixedly arranged on the front surface of the cavity core board, the two alternating current vacuum contactors are distributed along one diagonal line of the cavity core board, the three-phase reactor and the control transformer are distributed along another diagonal, a combined switch fixing plate is fixedly arranged on the inner wall of the side face, close to the edge, of the right cavity of the front cavity box body, a porcelain safety support is fixedly arranged on the left side face, close to the rear end, of the combined switch fixing plate, a porcelain safety is fixedly arranged on the front surface of the porcelain safety support, a combined switch is fixedly arranged on the left side face, close to the middle, of the combined switch fixing plate, a door core plate is fixedly arranged on the rear surface of the door plate, a leakage filtering module and a pilot plug-in unit are sequentially and fixedly arranged on the rear surface of the door plate from left to right, and a protector is fixedly arranged on the rear surface of the door plate, close to the upper portion of the door core plate.
The method is further characterized in that: the inner structures of the left cavity and the right cavity of the front cavity box body are placed in a mirror image mode in the horizontal direction by taking the middle point of the middle partition plate of the front cavity.
The method is further characterized in that: the current transformer, the alternating current vacuum contactor, the three-phase reactor, the control transformer, the porcelain insurance, the combination switch, the leakage filtering module, the pilot plug-in unit, the protector and the dry-type transformer in the left cavity and the right cavity form a first loop circuit and a second loop circuit, the protector, the leakage filtering module and the three-phase reactor are connected in series and then are electrically connected with the current transformer, the current transformer is connected in series with the alternating current vacuum contactor and then is electrically connected with the dry-type transformer, the combination switch is connected in series with the porcelain insurance and then is electrically connected with the alternating current vacuum contactor, and the pilot plug-in unit is connected in series with the protector.
The method is further characterized in that: the movable seat is movably connected with the hinge seat by a pin shaft.
The method is further characterized in that: the locking shaft corresponds to the upper U-shaped groove of the knob, and the knob is fixed with the combined switch through the poking shaft.
The method is further characterized in that: the door plate is fixedly provided with a handle on the side surface far away from the edges of the left door flange and the right door flange.
The method is further characterized in that: the door supporting plates are fixedly installed at positions, adjacent to the lower surfaces of the left door flange and the right door flange, clamping blocks and outer fixing blocks are installed at positions, close to the edges, of the lower surfaces of the left door flange and the right door flange.
The invention has the beneficial effects that:
1. The locking shaft is matched with the U groove on the knob to realize a quick door opening structure, so that an inner body and personnel operation safety can be protected, the quick door opening can be realized, and the power-off locking can be realized;
2. By adopting double power supply double loops, the electric leakage blocking and the on-line electric leakage protection can be realized, the double power supply is introduced, the double loop output can simultaneously introduce two paths of power supplies for supplying power, the two paths of loop output are introduced, the two paths of power supplies are selectively connected or disconnected by each path of combined switch for supplying power, the two paths of power supplies are respectively attracted by the AC vacuum contactors and the protector power supply selection contactors of the two loops through the control transformers of each path, each loop of power supply can supply power to the dry type transformer only through the attraction of the contactors of each loop, after the dry type transformer is electrified, the two loops can independently control the attraction of the AC vacuum contactors, and the dry type transformer outputs 127V power supply for supplying power to external lighting and monitoring equipment through the AC vacuum contactors; when the alternating current vacuum contactor of two loops is locked, only one loop can be closed, when any loop power supply is powered off or has other faults, the alternating current vacuum contactor is disconnected, both loop protectors can receive signals, the loop protectors are disconnected, the other loop protector sends out a starting instruction, the starting instruction is automatically switched to the other power supply, uninterrupted power supply is realized, the protectors are powered on simultaneously by the two paths of power supplies through the control transformer to output 15V voltage, even if only one path of power supply is provided, the two paths of protectors can be controlled simultaneously, the alternating current vacuum contactor is controlled, and loop output is selected.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the overall structure of a mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device;
FIG. 2 is a schematic diagram of the internal structure of the mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device;
FIG. 3 is a schematic diagram of the right cavity of the mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device;
Fig. 4 is an enlarged view of the position B in fig. 2 of the mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device of the present invention.
In the figure: 1. a wire box cover plate; 2. a wire box; 3. a rear sealing plate; 4. a rear cavity box; 5. a front cavity box; 6. a support shoe; 7. a wiring passage of the wiring terminal; 8. a door supporting plate; 9. a clamping block; 10. an outer fixing block; 11. a door panel; 12. a handle; 13. a left door flange; 14. a right door flange; 15. a locking shaft; 16. a locking shaft bracket; 17. a U-shaped groove; 18. a knob; 19. a door rotating shaft; 20. a door seat; 21. closing the door slot; 22. a movable seat; 23. a hinge base; 24. a handle; 25. a guide rail bracket; 26. a cavity core plate; 27. an alternating current vacuum contactor; 28. a door core plate; 29. a pilot insert; 30. a protector; 31. a control transformer; 32. a combination switch fixing plate; 33. porcelain insurance; 34. a dry-type transformer; 35. a combination switch; 36. a current transformer; 37. a transformer bracket; 38. a front cavity partition; 39. a leakage filtering module; 40. a three-phase reactor; 41. a porcelain safety bracket; 42. a stop button; 43. a thumb wheel; 44. and (5) a shaft is pulled.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device comprises a support base 6, wherein a front cavity box body 5 and a rear cavity box body 4 are sequentially and fixedly arranged on the upper surface of the support base 6 from front to back, two wiring terminal wire passing channels 7 which are arranged in the vertical direction are fixedly arranged at positions between the left side and the right side of the front cavity box body 5 and the right side of the rear cavity box body 4, a wire box 2 is fixedly arranged on the upper surfaces of the front cavity box body 5 and the rear cavity box body 4, and a wire box cover plate 1 is fixedly arranged on the upper surface of the wire box 2;
the rear surface of the rear cavity box body 4 is hinged with a rear sealing plate 3, two parallel guide rail brackets 25 are fixedly arranged on the inner wall of the bottom end of the rear cavity box body 4, and a dry-type transformer 34 is fixedly arranged on the upper surfaces of the two guide rail brackets 25;
the front surface of the front cavity box body 5 is sequentially and fixedly provided with a left door flange 13 and a right door flange 14 from left to right, the side surfaces of the left door flange 13 and the right door flange 14, which are far away from the center of the front cavity box body 5, are fixedly provided with a door closing groove 21, the front surfaces of the left door flange 13 and the right door flange 14 are respectively and movably provided with a door plate 11, the position, which is close to the upper end and the lower end, of the other side surface of the door plate 11 is fixedly provided with a door seat 20, the position, which is close to the upper end and the lower end, of the door plate 11 is fixedly provided with a door rotating shaft 19, the circular arc side surface of the door rotating shaft 19 is sheathed with a handle 24 with a connecting sleeve, one side surface of the door seat 20 is inserted with a movable seat 22, the position, which is close to the upper end and the lower end of the movable seat 22, of the left side surface and the right side surface of the front cavity box body 5 is fixedly provided with a hinge seat 23 movably mounted with the movable seat 22, the lower end of the upper side surface of the front cavity box body 5 is fixedly provided with a locking shaft bracket 16, the front surface of the locking shaft bracket 16 penetrates through a locking shaft 15, the left side surface of the locking shaft 16, the left side surface of the front cavity box body 5 is provided with a rotary knob 18, the rotary knob 18 is provided with a rotary knob 18, and the rotary knob 18;
a front cavity middle partition plate 38 for dividing the interior of the front cavity box 5 into a left cavity and a right cavity is fixedly arranged in the middle of the interior of the front cavity box 5, the left cavity and the right cavity of the front cavity box 5 have the same internal structure, a cavity core plate 26 is fixedly arranged on the inner wall of the rear end of the right cavity of the front cavity box 5, a transformer bracket 37 is fixedly arranged on the upper surface of the cavity core plate 26, a current transformer 36 is fixedly arranged on the lower surface of the transformer bracket 37, two alternating current vacuum contactors 27, a three-phase reactor 40 and a control transformer 31 are fixedly arranged on the front surface of the cavity core plate 26, the two alternating current vacuum contactors 27 are distributed along one diagonal line of the cavity core plate 26, the three-phase reactor 40 and the control transformer 31 are distributed along another diagonal line, a combined switch fixing plate 32 is fixedly installed on the inner wall of the side surface, close to the edge, of the right cavity of the front cavity box body 5, a porcelain safety support 41 is fixedly installed on the left side surface, close to the rear end, of the combined switch fixing plate 32, a porcelain safety 33 is fixedly installed on the front surface of the porcelain safety support 41, a combined switch 35 is fixedly installed on the left side surface, close to the middle, of the combined switch fixing plate 32, a door core plate 28 is fixedly installed on the rear surface of the door plate 11, a leakage filtering module 39 and a pilot plug 29 are fixedly installed on the rear surface of the door core plate 28 from left to right, and a protector 30 is fixedly installed on the rear surface, close to the upper portion of the door core plate 28, of the door plate 11.
The inner structures of the left cavity and the right cavity of the front cavity box body 5 are mirror-image placed in the horizontal direction by taking the middle point of the middle partition plate 38 of the front cavity; the left cavity and the right cavity form a first loop circuit and a second loop circuit by a current transformer 36, an alternating current vacuum contactor 27, a three-phase reactor 40, a control transformer 31, a porcelain safety 33, a combined switch 35, a leakage filtering module 39, a pilot plug-in 29, a protector 30 and a dry-type transformer 34, wherein the protector 30, the leakage filtering module 39 and the three-phase reactor 40 are connected in series and then are electrically connected with the current transformer 36, the current transformer 36 is connected in series with the alternating current vacuum contactor 27 and then is electrically connected with the dry-type transformer 34, the combined switch 35 is connected in series with the porcelain safety 33 and then is electrically connected with the alternating current vacuum contactor 27, and the pilot plug-in 29 is connected in series with the protector 30; the movable seat 22 is movably connected with the hinge seat 23 by a pin shaft; the locking shaft 15 corresponds to the upper U-shaped groove 17 of the knob 18, and the knob 18 is fixed with the combination switch 35 through the poking shaft 44; the side surface of the door plate 11, which is far away from the edges of the left door flange 13 and the right door flange 14, is fixedly provided with a handle 12; the door supporting plates 8 are fixedly arranged at the positions, adjacent to the lower surfaces of the left door flange 13 and the right door flange 14, and clamping blocks 9 and outer fixing blocks 10 for clamping are arranged at the positions, close to the edges, of the lower surfaces of the left door flange 13 and the right door flange 14.
Working principle: when the door opening and closing device is used, through the matching use of the locking shaft 15 and the U-shaped groove 17 on the knob 18, the structure of the quick opening door is realized, the operation safety of an inner body and personnel can be protected, the quick opening door is realized, the power-off locking can also be realized, the door opening is forbidden under the power-on state of the device, the knob 18 is rotated to the power-on or power-off state, the knob 18 is fixed together with the combination switch 35 on the combination switch fixing plate 32 through the poking shaft 44, the knob 18 can control the opening and closing of the combination switch 35 to generate the power-on and power-off state, when the power is on, the locking shaft 15 is not inserted into the U-shaped groove 17 on the knob 18, the locking shaft 15 is not in any contact with the knob 18, the other end of the locking shaft 15 can block the door plate 11, the door plate 11 is not opened, when the power is off, the U-shaped groove 17 on the knob 18 can be aligned with the locking shaft 15, the locking shaft 15 is rotated into the U-shaped groove 17, the knob 18 can not be rotated, the other end of the locking shaft 15 can not block the door plate 11, the handle 24 with the connecting sleeve is used, the handle 24 is sleeved on the door rotating shaft 19, the door plate 20 is driven to move along the hinge seat 22, and the door plate 11 is driven to be opened, and the door plate 11 is driven to rotate along the hinge seat 23, the door opening and the door plate 11 is driven to be opened, when the door opening is realized;
The power supply is selectively switched on or off by each circuit of combined switch 35, the two circuits of power supplies are respectively attracted by the control transformer 31 of each circuit through supplying power to the alternating current vacuum contactor 27 and the protector 30 of the two circuits, each circuit of power supply can supply power 34 to the dry type transformer only through the attraction of the contactor of each circuit, after the dry type transformer 34 is electrified, the two circuits can independently control the attraction of the alternating current vacuum contactor 27, when the protector 30 is electrified, the protector is automatically attracted, and when faults such as short circuit and the like occur in the circuit, the protection circuit is automatically switched off; the two contactor electric appliances of the control power supply input part are locked and are in a normally closed state in a normal state, when one contactor is attracted and the normally closed contact is changed into a normally open contact, the other contactor lacks a normally closed contact condition, so that the other contactor cannot be attracted and the power supply is prevented from being short-circuited; the stop button 42 is normally closed, is pressed down when a fault occurs, and is disconnected, the power supply is disconnected, and a stop signal is sent to the protector 30;
The dry-type transformer 34 is powered to output two paths of 133V voltage for lighting, monitoring equipment for power supply and the alternating current vacuum contactor 27, the alternating current vacuum contactors 27 of the two loops respectively control whether the loops of the two loops output 133V voltage, the alternating current vacuum contactor 27 is powered to be attracted under the condition that the dry-type transformer 34 normally outputs 133V voltage, the current transformer 36 is respectively used for detecting and protecting three-phase current output of the two loops, the protector 30 can check in real time, the three-phase reactors 40 and the leakage filtering module 39 in the two loops are used for leakage detection, and when faults occur, the voltages of the three-phase reactors 40 are not stable, and signals are sent to the protector 30 for leakage protection.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (3)
1. The mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device is characterized by comprising a supporting bottom bracket (6), wherein a front cavity box body (5) and a rear cavity box body (4) are sequentially and fixedly arranged on the upper surface of the supporting bottom bracket (6) from front to back, two wiring terminal wire passing channels (7) which are arranged in the vertical direction are fixedly arranged at positions between the left side and the right side of the front cavity box body (5) and the right side of the rear cavity box body (4), a wire box (2) is fixedly arranged on the upper surfaces of the front cavity box body (5) and the rear cavity box body (4), and a wire box cover plate (1) is fixedly arranged on the upper surface of the wire box (2);
The rear surface of the rear cavity box body (4) is hinged with a rear sealing plate (3), two parallel guide rail brackets (25) are fixedly arranged on the inner wall of the bottom end of the rear cavity box body (4), and a dry-type transformer (34) is fixedly arranged on the upper surfaces of the two guide rail brackets (25);
The front surface of the front cavity box body (5) is sequentially and fixedly provided with a left door flange (13) and a right door flange (14) from left to right, the side surfaces of the left door flange (13) and the right door flange (14) far away from the center of the front cavity box body (5) are fixedly provided with a door closing groove (21), the front surfaces of the left door flange (13) and the right door flange (14) are movably provided with a door plate (11), the position of the other side surface of the door plate (11) close to the upper end and the lower end is fixedly provided with a door seat (20), the position between the two door seats (20) is fixedly provided with a door rotating shaft (19), the arc side surface of the door rotating shaft (19) is sleeved with a handle (24) with a connecting sleeve, one side surface of the door seat (20) is spliced with a movable seat (22), the position of the left side surface and the right side surface of the front cavity box body (5) close to the upper end is fixedly provided with a hinge seat (23) movably mounted with the movable seat (22), the left side surface and the right side surface of the front cavity box body (5) is close to the upper end of the hinge seat (23), the lower side surface of the front cavity box body (16) is fixedly provided with a locking shaft (16), the rotary knob (16) is arranged on the side surface of the front cavity box body (5) and is provided with a rotary knob (16), a poking shaft (44) is fixedly arranged on one side surface of the knob (18), a poking wheel (43) is fixedly arranged on the arc side surface of the poking shaft (44), and a stop button (42) is arranged on the left side surface and the right side surface of the front cavity box body (5) close to the lower end of the knob (18);
The front cavity box (5) is internally and fixedly provided with a front cavity middle partition plate (38) for dividing the interior of the front cavity box (5) into a left cavity and a right cavity, the left cavity of the front cavity box (5) is identical to the right cavity in inner structure, the inner wall of the rear end of the right cavity of the front cavity box (5) is fixedly provided with a cavity core plate (26), the upper surface of the cavity core plate (26) is fixedly provided with a mutual inductor bracket (37), the lower surface of the mutual inductor bracket (37) is fixedly provided with a current transformer (36), the front surface of the cavity core plate (26) is fixedly provided with two alternating current vacuum contactors (27), one three-phase reactor (40) and one control transformer (31), the two alternating current vacuum contactors (27) are distributed along one diagonal line of the cavity core plate (26), the three-phase reactor (40) and the control transformer (31) are distributed along the other diagonal line, the side inner wall of the right cavity of the front cavity box (5) is fixedly provided with a mutual inductor bracket (37), the side surface of the right cavity of the front cavity is fixedly provided with a side inner wall fixed combination switch (32), the front surface of the front cavity (26) is fixedly provided with a ceramic switch (41), the front surface of the front side (41) is fixedly provided with a ceramic switch (41), a door core plate (28) is fixedly arranged on the rear surface of the door plate (11), a leakage filtering module (39) and a guide plug-in (29) are fixedly arranged on the rear surface of the door core plate (28) from left to right in sequence, and a protector (30) is fixedly arranged on the rear surface of the door plate (11) above the door core plate (28);
the inner structures of the left cavity and the right cavity of the front cavity box body (5) are placed in a mirror image mode in the horizontal direction by taking a middle point of a middle partition plate (38) of the front cavity;
The left cavity and the right cavity form a first loop circuit and a second loop circuit by a current transformer (36), an alternating current vacuum contactor (27), a three-phase reactor (40), a control transformer (31), a porcelain safety (33), a combination switch (35), a leakage filtering module (39), a pilot plug-in unit (29), a protector (30) and a dry-type transformer (34), wherein the protector (30), the leakage filtering module (39) and the three-phase reactor (40) are connected in series and then are electrically connected with the current transformer (36), the current transformer (36) is connected with the alternating current vacuum contactor (27) in series and then is electrically connected with the dry-type transformer (34), the combination switch (35) is connected with the porcelain safety (33) in series and then is electrically connected with the alternating current vacuum contactor (27), and the pilot plug-in unit (29) is connected with the protector (30) in series;
The locking shaft (15) corresponds to an upper U-shaped groove (17) of the knob (18), and the knob (18) is fixed with the combined switch (35) through a poking shaft (44).
2. The mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device according to claim 1, wherein the movable seat (22) is movably connected with the hinge seat (23) by a pin shaft.
3. The mining flameproof and intrinsically safe dual-power dual-loop lighting comprehensive protection device according to claim 1, wherein door supporting plates (8) are fixedly installed at positions, adjacent to the lower surfaces of the left door flange (13) and the right door flange (14), clamping blocks (9) and outer fixing blocks (10) are installed at positions, close to edges, of the lower surfaces of the left door flange and the right door flange (14).
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Application publication date: 20191220 Assignee: Huainan zaochen Electromechanical Technology Co.,Ltd. Assignor: Huainan Wantai Electric Co.,Ltd. Contract record no.: X2024980012783 Denomination of invention: Mining explosion-proof and intrinsic safety dual power dual circuit lighting comprehensive protection device Granted publication date: 20240604 License type: Common License Record date: 20240827 |