CN215378557U

CN215378557U - Desulfurization generating line stand-by power supply automatic switching device

Info

Publication number: CN215378557U
Application number: CN202121088181.XU
Authority: CN
Inventors: 陈静; 王存军; 张磊; 高坚东; 胡林海
Original assignee: Huainan Tianjiaan Power Station of Anhui Electric Power Co Ltd
Current assignee: Huainan Tianjiaan Power Station of Anhui Electric Power Co Ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-12-31
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses a desulfurization bus standby power supply automatic switching device in the technical field of power supply automatic switching, which comprises a 1ZKK switch and a 2ZKK switch, wherein the 1ZKK switch and the 2ZKK switch are electrically connected with a bus body, the output end of the 1ZKK switch and the output end of the 2ZKK switch are electrically connected with the input end of a voltage detection module, the input end of a 1ZKK switch and the input end of the 2ZKK switch are electrically connected with the input end of a voltage conversion module, and the input end of the voltage conversion module is electrically connected with the output ends of a manual voltage receiving switch and an automatic voltage receiving switch respectively. The risk of trip caused by the shutdown of auxiliary machinery for the plant due to short-time power loss can be effectively avoided.

Description

Desulfurization generating line stand-by power supply automatic switching device

Technical Field

The utility model relates to the technical field of automatic switching of a standby power supply, in particular to an automatic switching device of a desulfurization bus standby power supply.

Background

In a power plant service power system, if bus voltage disappears due to some external reasons and the bus voltage cannot be normally recovered, a high-voltage motor taken from a service bus can be stopped due to power loss, so that the service system is stopped and stopped, and thus service auxiliary machines are likely to be stopped due to short-time power loss, and the risk of trip is caused, so that a standby power supply automatic switching device of a desulfurization bus is needed to solve the problem of bus voltage loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a self-switching device of a desulfurization bus standby power supply, which aims to solve the problems in the background technology, in a power plant system of a power plant, if the bus voltage disappears due to some external reasons and the bus voltage cannot be normally recovered, a high-voltage motor taken from the power plant bus is stopped due to power loss, so that the power plant system is stopped, and the risk of trip is caused, which is likely to cause the stop of a power plant auxiliary machine due to short-time power loss, therefore, the self-switching device of the desulfurization bus standby power supply is needed to solve the problem of bus voltage loss.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a desulfurization bus stand-by power supply hauls oneself willingly into device, includes 1ZKK switch, 2ZKK switch, connecting device, 1ZKK switch and 2ZKK switch all with the mutual electric connection of bus body, the output of 1ZKK switch and the output of 2ZKK switch all with the mutual electric connection of input of voltage detection module, the input of 1ZKK switch and the input of 2ZKK all with the mutual electric connection of input of voltage conversion module, the input of voltage conversion module respectively with the manual output mutual electric connection who connects the pressure switch and connect the pressure switch automatically.

The fixing blocks are mounted at two ends of the outer wall of the connecting device, and the inner walls of the fixing blocks are connected with the outer wall of the bus body in a sliding mode.

The connecting device comprises a connecting device body and is characterized in that a fixing base is fixedly connected to the bottom of the connecting device body, and a plurality of fixing holes are formed in the two ends of the top of the fixing base in a penetrating mode.

The output end of the voltage detection module is electrically connected with the input end of the alarm module.

The output end of the information alarm module is provided with a loudspeaker for sound alarm.

And when the 1ZKK switch is in the closed position, the 2ZKK switch is in the jumping position, and when the 2ZKK switch is in the closed position, the 1ZKK switch is in the jumping position.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the bus is connected with the double power supplies, the automatic standby power supply switching device additionally arranged on the bus electrical secondary circuit can automatically switch into the standby power supply after the bus working power supply is lost, so that the continuity of bus power supply is increased, the self-starting function of the important auxiliary machine of the service power is recovered after the short-time power loss, and the trip risk caused by the shutdown of the auxiliary machine of the service power due to the short-time power loss can be effectively avoided; realize carrying out a carding fixedly to generating line and other circuits through a plurality of fixed blocks on the connecting device, can prevent like this that the mixed and disorderly later stage of being convenient for of circuit installation from overhauing the scheduling problem and appearing.

Drawings

FIG. 1 is a system diagram of an automatic switching device for a desulfurization bus standby power supply;

fig. 2 is a jump flow chart of the desulfurization bus standby power source automatic switching device 1ZKK according to the present invention;

fig. 3 is a jump flow chart of the desulfurization bus standby power source automatic switching device 2ZKK according to the present invention;

fig. 4 is a schematic view of the overall structure of the self-starting device of the desulfurization bus standby power supply of the present invention.

In the figure:

1. a bus body; 2. a fixed block; 3. a connecting device; 4. a fixed base; 5. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, an embodiment of the present invention provides a self-commissioning device for a desulfurization bus standby power supply, including a 1ZKK switch, a 2ZKK switch, and a connecting device 3, in which the 1ZKK switch and the 2ZKK switch are electrically connected to a bus body 1, an output terminal of the 1ZKK switch and an output terminal of the 2ZKK switch are electrically connected to an input terminal of a voltage detection module, an input terminal of the 1ZKK switch and an input terminal of the 2ZKK are electrically connected to an input terminal of a voltage conversion module, and an input terminal of the voltage conversion module is electrically connected to an output terminal of a manual voltage receiving switch and an output terminal of an automatic voltage receiving switch respectively.

The fixing blocks 2 are mounted at two ends of the outer wall of the connecting device 3, and the inner walls of the fixing blocks 2 are in sliding connection with the outer wall of the bus body 1, so that the bus and other circuits can be fixed in a carding mode through the fixing blocks 2 on the connecting device 3, and the problems that the circuits are mounted in a mess and inconvenient to later-stage overhaul and the like are solved; the bottom of the connecting device 3 is fixedly connected with a fixed base 4, and a plurality of fixing holes are arranged at the two ends of the top of the fixed base 4 in a penetrating manner, so that the connecting device 3 can be fixed at a position to be installed through the mutual matching of the fixed base 4 and the fixed holes 5, and the fixing installation of the connecting device 3 at the later stage is facilitated; the output end of the voltage detection module is electrically connected with the input end of the alarm module, so that the voltage loss information can be immediately fed back to the signal alarm module through the voltage detection module, and the received bus voltage loss information is immediately fed back to the outside through the signal alarm module so as to remind a worker to recover in time; the output end of the information alarm module is provided with a loudspeaker for sound alarm, so that the abnormal condition of bus voltage loss of workers can be warned in a sound alarm mode, and the overall warning effect is enhanced; the automatic voltage receiving switch is set to be started automatically in 15-second delay, so that a time for manually switching on the 1ZKK switch or the 2ZKK switch can be provided for a worker, and the automatic voltage receiving switch can be immediately switched on the 1ZKK switch or the 2ZKK switch in time after abnormity is not recovered by the aid of the delay setting, so that risks such as shutdown and trip of auxiliary equipment caused by long-time non-voltage of a bus are prevented; when the switch 1ZKK is in the closed position, the switch 2ZKK is in the jump position, and when the switch 2ZKK is in the closed position, the switch 1ZKK is in the jump position, so that the condition that the incoming line 2 is in the standby state when the incoming line 1 is in the charging state or the incoming line 1 is in the standby state when the incoming line 2 is in the charging state can be ensured, the continuity of bus power supply is kept, and the important auxiliary machine of the auxiliary power supply can quickly recover the self-starting function after short-time power loss.

The working principle of the utility model is as follows:

the utility model discloses an at first generating line is at first when using and is connected with main power switch 1ZKK switch and the mutual electric connection of stand-by power switch 2ZKK switch of the automatic device that drops into of stand-by power respectively, if main power switch 1ZKK switch appears the unusual position of jumping and leads to the generating line decompression, voltage detection module then detects the generating line voltage to unusual immediately, detect out and send the decompression information back to signal alarm module immediately after the generating line decompression, signal alarm module receives the generating line decompression information after immediately feed back the information to the external world so that alert staff, at this moment if the staff on the other hand finds the alarm information that signal alarm module sent and in 15 seconds through the manual switch-on switch that connects 1ZKK switch reclosing can make the generating line voltage recovery normal again, 1ZKK makes inlet wire 1 continue to keep the charged state again and inlet wire 2 then standby in the position of diving 2ZKK at this moment, if the worker does not reset the 1ZKK switch through the manual voltage receiving switch within 15 seconds, the automatic voltage receiving switch is automatically turned on after 15 seconds of delay to enable the 2ZKK switch to be reset, at the moment, the 2ZKK switch accesses the voltage through the voltage conversion module to enable the bus to timely recover from voltage receiving, at the moment, the 2ZKK is in the reset position at the reset position 1ZKK, the incoming line 2 keeps the charging state incoming line 1 for standby, and the situation that the 2ZKK is abnormal to cause the reset position is prevented.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a desulfurization bus standby power source automatic switching equipment, includes 1ZKK switch, 2ZKK switch, connecting device (3), its characterized in that: the 1ZKK switch and the 2ZKK switch are electrically connected with the bus body (1), the output end of the 1ZKK switch and the output end of the 2ZKK switch are electrically connected with the input end of the voltage detection module, the input end of the 1ZKK switch and the input end of the 2ZKK switch are electrically connected with the input end of the voltage conversion module, and the input ends of the voltage conversion module are electrically connected with the output ends of the manual voltage receiving switch and the automatic voltage receiving switch respectively;

the output end of the voltage detection module is electrically connected with the input end of the signal alarm module.

2. The automatic switching device for the desulfurization bus standby power supply as claimed in claim 1, wherein fixed blocks (2) are mounted at two ends of the outer wall of the connecting device (3), and the inner walls of the fixed blocks (2) are slidably connected with the outer wall of the bus body (1).

3. The automatic switching device for the desulfurization bus standby power supply according to claim 2, wherein a fixing base (4) is fixedly connected to the bottom of the connecting device (3), and a plurality of fixing holes (5) are formed through two ends of the top of the fixing base (4).

4. The self-throwing device for the standby power supply of the desulfurization bus bar as claimed in claim 1, wherein the output end of the signal alarm module is provided with a loudspeaker for sound alarm.

5. The automatic switching device for the desulfurization bus standby power supply as claimed in claim 1, wherein the 1ZKK switch is in the closed position, the 2ZKK switch is in the jumping position, and the 2ZKK switch is in the closed position, and the 1ZKK switch is in the jumping position.