CN113964689A - Control device and method for safety door of box-type substation - Google Patents
Control device and method for safety door of box-type substation Download PDFInfo
- Publication number
- CN113964689A CN113964689A CN202111033921.4A CN202111033921A CN113964689A CN 113964689 A CN113964689 A CN 113964689A CN 202111033921 A CN202111033921 A CN 202111033921A CN 113964689 A CN113964689 A CN 113964689A
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- Prior art keywords
- box
- door
- type substation
- box door
- safety
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000007123 defense Effects 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
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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
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/143—Arrangement of several locks, e.g. in parallel or series, on one or more wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/52—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like
-
- 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
- H02B1/24—Circuit arrangements for boards or switchyards
Abstract
A control device and a method for a safety door of a box-type substation mainly comprise a device, wherein the device comprises a box door, and an electromagnetic safety lock is arranged on the box door; the electromagnetic safety lock comprises an armature, the armature is arranged on the box body in a sliding mode, and the upper end of the armature is connected with the box body through a spring; the lower end of the armature is opposite to the iron core on the box body, a working coil is wound on the iron core, and the working coil is connected into a control circuit; one side of the armature is connected with the clamping column through a connecting rod, and a clamping ring is correspondingly arranged on the box door; when the working coil is in a power-on state, the clamping column moves downwards and is clamped with the clamping ring to form a locking structure. The safety door control device and method for the box-type substation provided by the invention can prevent external personnel from mistakenly opening the box door under the condition of electrification and ensure the safety of external operators.
Description
Technical Field
The invention relates to the field of power distribution networks, in particular to a control device and a control method for a box-type substation safety door.
Background
The box-type substation is one of the most common devices in the power distribution network, is used as a connecting device between the power distribution network and a user, and the performance of the box-type substation is the guarantee of safe and stable operation of the power distribution network. There are many electrical devices in a box substation that require regular or irregular maintenance. Due to the high-voltage line in the box-type transformer substation, the operation safety is very important during maintenance.
Considering operating personnel's safety, the chamber door can't be opened when requiring box-type substation to be electrified usually, and can open the chamber door only when the outage, overhauls. At present, a box door of a box-type substation does not have a power failure indication or judgment function, so that an operator cannot judge whether the box-type substation is really powered off or in a safe operation state during operation.
Patent CN111058755A provides a box-type substation rolls up curtain formula emergency exit, can prevent to lead to the violent rotation of door when opening the door under weather such as strong wind, nevertheless can't realize the judgement whether the incasement cuts off the power supply. Patent CN213484270U provides a be used for switch board emergency exit device, when needs are opened the emergency exit, the handheld emergency exit of staff is drawn to the upper lift, drives gangbar and slide in the slip intracavity in step and slides, can extend the extension to the length of gangbar, has realized the support to the emergency exit, and the staff of being convenient for operates the use, has avoidd the not enough of the arbitrary dismouting of traditional emergency exit. However, the technologies related to the above patents do not have the function of power failure indication or power failure operation, and certain hidden troubles are brought to the overhaul of operators and the safe and stable operation of the box-type substation.
Disclosure of Invention
The invention aims to provide a safety door control device and a safety door control method for a box-type substation, which can prevent external personnel from mistakenly opening a box door under the condition of electrification and ensure the safety of external operators.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a safety door control device of a box-type substation comprises a box door, wherein an electromagnetic safety lock is arranged on the box door; the electromagnetic safety lock comprises an armature, the armature is arranged on the box body in a sliding mode, and the upper end of the armature is connected with the box body through a spring; the lower end of the armature is opposite to the iron core on the box body, a working coil is wound on the iron core, and the working coil is connected into a control circuit; one side of the armature is connected with the clamping column through a connecting rod, and a clamping ring is correspondingly arranged on the box door; when the working coil is in a power-on state, the clamping column moves downwards and is clamped with the clamping ring to form a locking structure.
The box door comprises an inner box door and an outer box door, and the inner box door and the outer box door are locked with the box body through electromagnetic safety locks.
The inner box door is locked with the box body through a bolt up and down.
The inner box door is of a grid-shaped structure and is made of aluminum alloy materials.
The outer box door is made of a composite board, and a vent hole is formed in the lower portion of the outer box door.
An indicating coil is wound on the iron core, and an output signal of the indicating coil drives an indicating lamp to be bright or dark.
And the iron core is fixed with a sub-magnetic ring.
A control method of a box-type substation safety door comprises the steps of constructing three defense lines for safe operation of a box door, wherein the first defense line is an indicator light, and when a red light is on, the box is electrified, so that a worker does not need to operate the box-type substation safety door; the second defense line is an electromagnetic safety lock, and the electromagnetic safety lock can be opened only when the internal equipment is powered off, and the box door can be opened at the moment; the third line of defence is lock and bolt, and when the electromagnetism safety lock was opened, the staff needed to open lock and bolt further, and the side can open the door.
The invention discloses a control device and a control method for a safety door of a box-type substation, which have the following technical effects:
1) the safety door of the box-type substation is formed by the electromagnetic safety lock based on the electromagnet principle and the box door, the electromagnet can work only under the condition of internal electrification, the electromagnetic safety lock is in a locking state at the moment, and the box door cannot be opened, so that the safety of operators can be effectively guaranteed. The existing safety door based on the travel switch cannot judge the working state, and once the reed fails, the power failure in the box can not be guaranteed when a worker operates the safety door. Compared with the existing safety door based on the travel switch, the safety performance of the technology provided by the invention is higher.
2) The indicating coil is arranged beside the working coil on the iron core, so that the working state of the electromagnet can be accurately monitored under the condition that the size of the electromagnet part in the electromagnetic safety lock is not increased, and the electromagnet can work only when the equipment in the box is electrified, so that the result of the indicating coil also shows whether the equipment in the box is in electrified operation. Compared with the traditional electromagnet, the method can realize accurate monitoring of the working state of the electromagnet, is convenient for external workers to know the state of the safety door in real time, and further reminds the workers that the workers cannot carry out live-line operation in a mode of arranging the indicating lamp outside.
3) The first defense line is an indicator light, and when the red light is on, the interior of the box is electrified, so that the operation is not required by workers; the second defense line is a safety lock, and the safety lock can be opened only when the internal equipment is powered off, and the box door can be opened at the moment; the third line of defence is lock and bolt, and when the safety lock was opened, the staff needed to open lock and bolt further, and the side can open the door. Through the three-defense line design of the safety door, the operation safety is effectively ensured.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic view showing the position of the security gate on the housing in the present invention.
Fig. 2 is a front view of the inner box door of the present invention.
FIG. 3 is a front view of the outer bin door of the present invention.
FIG. 4 is a schematic view of the latch of the present invention.
FIG. 5 is a schematic diagram of the electromagnetic safety lock of the present invention.
In the figure: inner box door 1, outer box door 2, electromagnetic safety lock 3, pilot lamp 4, bolt 5, door handle 6, lock 7, ventilation hole 8, spring 9, armature 10, iron core 11, work coil 12, divide magnetic ring 13, connecting rod 14, card post 15, snap ring 16, pilot coil 17.
Detailed Description
As shown in fig. 1, a device and a method for controlling a safety door of a box-type substation include: the safe box comprises a box door (comprising an inner box door 1 and an outer box door 2), an electromagnetic safety lock 3, an indicator light 4 and the like.
As shown in fig. 1, an inner box door 1 and an outer box door 2 are installed on a box body of a box-type substation, and an electromagnetic safety lock 3 is installed on each of the inner box door 1 and the outer box door 2. When the two box doors are closed, the equipment in the box can be effectively protected, external personnel or small animals are prevented from entering the box by mistake, and the safe and stable operation of the box-type substation is guaranteed. The inner box door 1 is of a grid-shaped structure and is made of aluminum alloy materials; the outer box door is made of a composite board.
As shown in fig. 2 and 4, an upper bolt and a lower bolt 5 are mounted on the inner box door 1, and the bolts 5 are used for manually locking the inner box door on the box-type substation box body, so that the safety of an operator is further guaranteed, and the inner box door 1 is prevented from being automatically opened in the state that the electromagnetic safety lock is opened. The inner box door 1 is also provided with a door handle 6 for the worker to open and close the inner box door 1 conveniently.
As shown in fig. 3, the outer box door is provided with a door lock 7, the outer box door 2 can be locked by a key, and a vent hole 8 is arranged below the outer box door 2, so that the outer box door has the functions of heat insulation and ventilation.
As shown in fig. 5, the electromagnetic safety lock 3 is used to control the opening and closing of the door. The electromagnetic safety lock adopts a method based on an electromagnet principle, and the electromagnetic safety lock 3 comprises an alternating current electromagnet consisting of a spring 9, an armature 10, an iron core 11, a working coil 12 and a sub-magnetic ring 13. The sub-magnetic ring 13 can generate induced current and then generate induced magnetic flux, which makes the resultant magnetic flux of the main magnet passing through zero not equal to zero, thereby preventing the vibration phenomenon of the alternating-current electromagnet when the waveform of the working power supply passes through zero.
As shown in fig. 5, the lock control of the inner box door 1 is explained as an example, and when the equipment in the box is electrically operated, the power supply may be 380V or 220V by energizing the operating coil 12. After the power is switched on, the electromagnet works, and the armature 10 is attracted with the iron core 11. A connecting rod 14 is fixed on the armature 10, and the connecting rod 14 is connected with a clamping column 15. The snap ring 16 is fixed at the upper left position of the inner box door 1. The clamping column 15 and the clamping ring 16 form a locking structure, and the inner box door 1 and the box body are fixed together after being locked, so that an operator is prevented from being opened by mistake from the outside. An indicating coil 17 is wound in the iron core 11, and an output signal of the indicating coil 17 drives an indicating lamp 4 for indicating whether the equipment in the box is electrified or not. Indicator light 4 installs on the box, is located the chamber door top, makes things convenient for outside staff in time to observe whether equipment is electrified.
The working principle and the process are as follows: when the internal equipment of the box-type substation is electrified, the electromagnet working coil 12 is powered, the electromagnet works to generate attraction force, the armature 10 is attracted with the iron core 11, the clamping column 15 moves downwards and is embedded in the clamping ring 16, the electromagnetic safety lock is in a locking state, and the box door cannot be opened from the outside. Meanwhile, the indicating coil 17 works to drive the indicating lamp 4 to be red, so that the current equipment of a worker is reminded of being in a charged state and does not need to be operated in a charged state, and misoperation of an external operator under the condition of charging inside the box-type substation can be prevented. When the interior of the box-type substation is required to be overhauled, the box-type substation is powered off, the electromagnet does not work, the clamping column 15 is separated from the clamping ring 16, the electromagnetic safety lock 3 is opened at the moment, and an operator can normally open the door.
The invention can effectively solve the problem of low safety commonly existing in the box door of the box-type substation at present, the electromagnetic safety lock based on the electromagnet principle is adopted to control the opening and closing of the box door, the working state of the electromagnetic safety lock is monitored in real time through the indicating coil and the indicating lamp, and three defense lines for safety operation of the safety door are constructed by matching the door lock and the bolt, so that the safety of operators is effectively ensured, and the misoperation of external personnel is prevented.
Claims (8)
1. The utility model provides a box-type substation safety door controlling means which characterized in that: comprises a box door, wherein an electromagnetic safety lock (3) is arranged on the box door; the electromagnetic safety lock (3) comprises an armature (10), the armature (10) is arranged on the box body in a sliding mode, and the upper end of the armature (10) is connected with the box body through a spring (9); the lower end of the armature (10) is opposite to an iron core (11) on the box body, a working coil (12) is wound on the iron core (11), and the working coil (12) is connected into a control circuit; one side of the armature (10) is connected with a clamping column (15) through a connecting rod (14), and a clamping ring (16) is correspondingly arranged on the box door; when the working coil (12) is in an electrified state, the clamping column (15) moves downwards and is clamped with the clamping ring (16) to form a locking structure.
2. The box-type substation safety door control device according to claim 1, characterized in that: the box door comprises an inner box door (1) and an outer box door (2), and the inner box door (1) and the outer box door (2) are locked with the box body through electromagnetic safety locks (3).
3. The box-type substation safety door control device according to claim 2, characterized in that: the inner box door (1) is locked with the box body up and down through a bolt (5).
4. The box-type substation safety door control device according to claim 2, characterized in that: the inner box door (1) is of a grid-shaped structure and is made of aluminum alloy materials.
5. The box-type substation safety door control device according to claim 2, characterized in that: the outer box door (2) is made of a composite board, and a ventilation hole (8) is formed below the outer box door.
6. The box-type substation safety door control device according to claim 1, characterized in that: an indicating coil (17) is wound on the iron core (11), and an output signal of the indicating coil (17) drives the indicator light (4) to be bright and dark.
7. The box-type substation safety door control device according to claim 1, characterized in that: and a sub-magnetic ring (13) is fixed on the iron core (11).
8. The method for controlling the box door of the safety door control device of the box-type substation according to any one of claims 1 to 7, wherein the method comprises the following steps: three defense lines for safe operation of the box door are constructed, the first defense line is an indicator light, the interior of the box is electrified when a red light is on, and workers do not need to operate the box; the second defense line is an electromagnetic safety lock, and the electromagnetic safety lock can be opened only when the internal equipment is powered off, and the box door can be opened at the moment; the third line of defence is lock and bolt, and when the electromagnetism safety lock was opened, the staff needed to open lock and bolt further, and the side can open the door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111033921.4A CN113964689A (en) | 2021-09-03 | 2021-09-03 | Control device and method for safety door of box-type substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111033921.4A CN113964689A (en) | 2021-09-03 | 2021-09-03 | Control device and method for safety door of box-type substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113964689A true CN113964689A (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111033921.4A Pending CN113964689A (en) | 2021-09-03 | 2021-09-03 | Control device and method for safety door of box-type substation |
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| Country | Link |
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| CN (1) | CN113964689A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115332955A (en) * | 2022-07-13 | 2022-11-11 | 华能(广东)能源开发有限公司汕头电厂 | Anti-misoperation high-voltage switch cabinet and anti-misoperation method |
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| CN104167332A (en) * | 2014-06-23 | 2014-11-26 | 浙江朗万电气科技有限公司 | Household intelligent circuit breaker |
| CN205404639U (en) * | 2016-02-26 | 2016-07-27 | 国家电网公司 | Anti -electricity -stealing electric -meter box |
| CN207315185U (en) * | 2017-09-19 | 2018-05-04 | 覃汉盛 | A kind of composite door |
| CN108179935A (en) * | 2018-03-01 | 2018-06-19 | 河南九萬里智能科技有限公司 | A kind of locking device for screen door in rail transit |
| CN112665290A (en) * | 2021-01-15 | 2021-04-16 | 长虹美菱股份有限公司 | Fixing and locking device for refrigerator door body |
| CN212990846U (en) * | 2020-10-22 | 2021-04-16 | 广东天豪电气有限公司 | Outdoor pre-installed transformer |
| CN213460675U (en) * | 2020-09-28 | 2021-06-15 | 湖北泠恺电力有限公司 | Safety locking device for box-type substation |
-
2021
- 2021-09-03 CN CN202111033921.4A patent/CN113964689A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167332A (en) * | 2014-06-23 | 2014-11-26 | 浙江朗万电气科技有限公司 | Household intelligent circuit breaker |
| CN205404639U (en) * | 2016-02-26 | 2016-07-27 | 国家电网公司 | Anti -electricity -stealing electric -meter box |
| CN207315185U (en) * | 2017-09-19 | 2018-05-04 | 覃汉盛 | A kind of composite door |
| CN108179935A (en) * | 2018-03-01 | 2018-06-19 | 河南九萬里智能科技有限公司 | A kind of locking device for screen door in rail transit |
| CN213460675U (en) * | 2020-09-28 | 2021-06-15 | 湖北泠恺电力有限公司 | Safety locking device for box-type substation |
| CN212990846U (en) * | 2020-10-22 | 2021-04-16 | 广东天豪电气有限公司 | Outdoor pre-installed transformer |
| CN112665290A (en) * | 2021-01-15 | 2021-04-16 | 长虹美菱股份有限公司 | Fixing and locking device for refrigerator door body |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115332955A (en) * | 2022-07-13 | 2022-11-11 | 华能(广东)能源开发有限公司汕头电厂 | Anti-misoperation high-voltage switch cabinet and anti-misoperation method |
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