Summary of the invention
Technical problem to be solved by this invention just is to provide a kind of power distribution room self-draining arrangement, and according to SEA LEVEL VARIATION Auto-drainage in power distribution room, safety and reliability are high.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of power distribution room self-draining arrangement, low-voltage distribution cabinet is installed in power distribution room, described low-voltage distribution cabinet top is equipped with a 40A A.C. contactor and at least one 250A A.C. contactor, described low-voltage distribution cabinet bottom is equipped with the RTO fuse, the RTO fuse connects the low-pressure line-outgoing cable, power distribution room excavates cable trench below low-voltage distribution cabinet, it is characterized in that: described cable trench bottom excavation has a water storage tank, place a submersible pump in described water storage tank, described submersible pump power supply is connected with 40A AC contactor touch head system, one measurement water level water storage tank is arranged at described cable trench bottom also excavation, one water level controller is installed in described measurement water level water storage tank, in described water level controller, waterproof press-button liquid level normal open switch is connected with the 40A ac contactor coil, described water level controller is surveyed water level in power distribution room, when in measuring the water level water storage tank, water level has the water storage tank top, water level controller was not controlled the submersible pump unlatching by the 40A A.C. contactor, when in measuring the water level water storage tank, water level is lower than the water storage tank top, water level controller cuts out by 40A A.C. contactor control submersible pump.
Preferably, described water level controller comprises the framework of a column, described framework bottom is communicated with measurement water level water storage tank, be provided with a magnetic float in described framework, described framework middle part is installed a waterproof press-button liquid level normal open switch and is connected with the 40A ac contactor coil, the pushbutton unit of the described waterproof press-button liquid level normal open switch of one triggering is installed on described magnetic float, the moving pushbutton unit shake-up of shipper pole liquid level normal open switch on magnetic float when water level did not have the water storage tank top in power distribution room water inlet and measurement water level water storage tank, make liquid level normal open switch closure, the energising of 40A ac contactor coil, 40A A.C. contactor moving contact closure, submersible pump is started working, when water level decline and pushbutton unit disengaging liquid level normal open switch, the liquid level normal open switch separates automatically, and submersible pump cuts out.
Preferably, described framework is also installed a waterproof press-button liquid level normally closed switch above described waterproof press-button liquid level normal open switch, described waterproof press-button liquid level normally closed switch is connected in series with the 250A ac contactor coil, when in power distribution room, water level rises to RTO fuse lower end and low-pressure line-outgoing cable junction 100mm, in water level controller, on magnetic float, the moving pushbutton unit of shipper pole is tactile makes its separation by waterproof press-button liquid level normally closed switch, the outage of 250A ac contactor coil, the low-pressure line-outgoing cable is stopped power supply, when water level descends, in water level controller, magnetic float moves down, waterproof press-button liquid level normally closed switch resets, the action of 250A A.C. contactor is closed, the low-pressure line-outgoing cable restores electricity.
Preferably, described framework is square box, and the framework bottom is communicated with measurement water level water storage tank by eyed structure.
Preferably, described pushbutton unit comprises upper pushbutton unit and is located at the next pushbutton unit of upper pushbutton unit below, between described upper pushbutton unit and the next pushbutton unit, by the pushbutton unit brace, is fixedly connected with.
Preferably, described magnetic float comprises the ball float body, float body top is fixedly connected with a cylindric fixed leg, described fixed leg outer circumferential sides is fixedly connected with the magnetic float brace of a tubular, and described magnetic float brace is fixedly connected with upper pushbutton unit and the next pushbutton unit simultaneously.
Preferably, the switch contact of described upper pushbutton unit and the next pushbutton unit is ellipse.
The present invention is located at by one the water level controller of measuring in the water level water storage tank and controls the submersible pump keying, can be according to SEA LEVEL VARIATION in power distribution room, and Auto-drainage, safety and reliability are high.And, when the submersible pump fault, also by water level controller, control the 250A ac contactor coil and interrupt the low-pressure line-outgoing cable power supply, further improved safety and reliability.
The specific embodiment
Illustrate the embodiment of power distribution room self-draining arrangement of the present invention in conjunction with Fig. 1 and Fig. 2, low-voltage distribution cabinet 1 is installed in power distribution room, described low-voltage distribution cabinet top is equipped with a 40A A.C. contactor 11 and at least one 250A A.C. contactor 12, described low-voltage distribution cabinet bottom is equipped with RTO fuse 13, the RTO fuse connects the low-pressure line-outgoing cable, power distribution room excavates cable trench 2 below low-voltage distribution cabinet, described cable trench bottom excavation has a water storage tank 21, place a submersible pump 22 in described water storage tank, described submersible pump power supply is connected with 40A AC contactor touch head system, one measurement water level water storage tank 23 is arranged at described cable trench bottom also excavation, one water level controller 3 is installed in described measurement water level water storage tank, in described water level controller, waterproof press-button liquid level normal open switch 31 is connected with the 40A ac contactor coil, described water level controller is surveyed water level in power distribution room, when in measuring the water level water storage tank, water level has the water storage tank top, water level controller was not controlled the submersible pump unlatching by the 40A A.C. contactor, when in measuring the water level water storage tank, water level is lower than the water storage tank top, water level controller cuts out by 40A A.C. contactor control submersible pump.Described water level controller comprises the framework 33 of a column, described framework bottom is communicated with measurement water level water storage tank, be provided with a magnetic float 4 in described framework, a waterproof press-button liquid level normal open switch 31 is installed at described framework middle part, described waterproof press-button liquid level normal open switch is connected with the 40A ac contactor coil, the pushbutton unit of the described waterproof press-button liquid level normal open switch of one triggering is installed on described magnetic float, the moving pushbutton unit shake-up of shipper pole liquid level normal open switch on magnetic float when water level did not have the water storage tank top in power distribution room water inlet and measurement water level water storage tank, make liquid level normal open switch closure, the energising of 40A ac contactor coil, 40A A.C. contactor moving contact closure, submersible pump is started working, when water level decline and pushbutton unit disengaging liquid level normal open switch, the liquid level normal open switch separates automatically, and submersible pump cuts out.Described framework is also installed a waterproof press-button liquid level normally closed switch 32 above described waterproof press-button liquid level normal open switch, described waterproof press-button liquid level normally closed switch is connected in series with the 250A ac contactor coil, when in power distribution room, water level rises to RTO fuse lower end and low-pressure line-outgoing cable junction 100mm, on the interior magnetic float of water level controller, the moving pushbutton unit shake-up of shipper pole waterproof press-button liquid level normally closed switch makes its separation, the outage of 250A ac contactor coil, the low-pressure line-outgoing cable is stopped power supply, when water level descends, in water level controller, magnetic float moves down, waterproof press-button liquid level normally closed switch resets, the action of 250A A.C. contactor is closed, the low-pressure line-outgoing cable restores electricity.
Described framework is square box, and the framework bottom is communicated with measurement water level water storage tank by eyed structure.Described pushbutton unit comprises upper pushbutton unit 42 and is located at the next pushbutton unit 41 of upper pushbutton unit below, between described upper pushbutton unit and the next pushbutton unit, by pushbutton unit brace 44, is fixedly connected with.Described magnetic float comprises the ball float body, float body top is fixedly connected with a cylindric fixed leg 43, described fixed leg outer circumferential sides is fixedly connected with the magnetic float brace 45 of a tubular, and described magnetic float brace is fixedly connected with upper pushbutton unit and the next pushbutton unit simultaneously.The switch contact of described upper pushbutton unit and the next pushbutton unit is ellipse.
Low-voltage distribution cabinet comprises two groups of low-pressure line-outgoing unit, every group of low-pressure line-outgoing unit is comprised of the 250A A.C. contactor linked together, RTO fuse, every group of low-pressure line-outgoing unit leading-out terminal access user cable, the Auto-drainage power supply unit is comprised of 40A A.C. contactor, RTO fuse, and submersible pump is connected with submersible pump fuse 14.
In conjunction with Fig. 1, operating principle is described:
1, water level controller: magnetic float, the next pushbutton unit, pushbutton unit brace, magnetic float brace, upper pushbutton unit, waterproof press-button liquid level normally closed switch, waterproof press-button liquid level normal open switch, a water level controller of circular built-in fixed leg composition are installed in 300 * 300 square frameworks;
2, mobile controller: be that 280mm magnetic float, the next pushbutton unit, pushbutton unit brace, magnetic float brace, upper pushbutton unit form an energy and move up and down device according to water level by diameter.
3, circular built-in fixed leg: at water level controller, diameter being installed is the circular built-in fixed leg of 50mm, purpose be control magnetic float, upper (under) position pushbutton unit etc. do not depart from center while moving up and down.Water level controller bottom surrounding is the net form water inlet, prevents that rubbish and toy from entering.
4, above (under) the position pushbutton unit: be designed to elliptical devices, while contacting with waterproof press-button liquid level normally closed (opening) switch in moving up and down process for water level controller, can well press and put in place, guarantee that its contact is good.
5, pushbutton unit brace: after the liquid level normal open switch touches upper pushbutton unit, water level continues in the process of moving up, and can make it keep pinning for a long time the liquid level normal open switch and not unclamp.
6, magnetic float brace: this brace is fixedly connected with magnetic float,, when water level moves up and down, can synchronously promote (under) position pushbutton unit and pushbutton unit brace.
7, liquid level normal open switch: this switch is connected with the 40A ac contactor coil, and when water level controller rises according to water level, magnetic float is because water buoyancy promotes on mobile controller to move to the liquid level normal open switch, make its closure, the energising of 40A ac contactor coil, contactor moving contact closure, submersible pump is started working, as water level descends, mobile controller moves to liquid level normal open switch below, and this switch disconnects, and the 40A ac contactor coil disconnects, the contactor moving contact separates, and submersible pump quits work.
8, waterproof press-button liquid level normally closed switch: this group switch is connected with many group 250A ac contactor coils, during normal operation circumstances, is normally closed, 250A A.C. contactor moving contact closure, low-pressure side user's normal power supply.When water level rises, when the submersible pump displacement still can not meet the switchgear house inflow, this mobile controller will continue to rise, while touching waterproof press-button liquid level normally closed switch, this switch is carried out separating action, make many groups 250A ac contactor coil outage of its series connection, the contactor moving contact separates, and stops power supply in the contactor bottom.Phase fault is caused because of water inlet in assurance fuse bottom.If water level descends in the submersible pump course of work, after mobile controller leaves waterproof press-button liquid level normally closed switch, this switch closure, organizes the energising of 250A ac contactor coil more, contactor moving contact closure, and bottom restores electricity.
In conjunction with Fig. 2, operating principle is described:
Comprise water level controller, the 40A A.C. contactor, minimum one group of 250A A.C. contactor, single-plase submerged pump and RTO fuse form the power distribution room self-draining arrangement, power distribution room 500mm cable trench differs from the 10 ° little slopes of inclining with right side and left side and builds, and dig the 600mm water storage tank at the power distribution room cable trench near under the wall 50mm of left side, cable trench water collecting can be flow in water storage tank by this slope of inclining, place single-plase submerged pump in water storage tank, the anti-rubbish of water storage tank and cable trench Plane Installation falls net, the submersible pump power supply connects through 40A AC contactor touch head system, delivery port is apart from 10cm place, top, power distribution room ground line opening, and sealed hole and processed, being convenient to ponding discharges, dig 400mm and measure the water level water storage tank under low-voltage distribution cabinet left side, from 100mm place at the bottom of measuring the water level water storage tank, water level controller is installed, this controller is square, and use bolt and low-voltage distribution cabinet are fixed, when power distribution room is intake, when the built-in mobile controller of water level controller rises to water storage tank and cable trench isoplanar according to water level, on the built-in mobile controller of water control controller, move, touch the liquid level normal open switch, make its closure, the energising of 40A ac contactor coil, contactor moving contact closure, submersible pump is started working, in water level decline process, during lower than the liquid level normal open switch, this switch separates automatically, and submersible pump quits work.When if water level continues to rise to RTO fuse lower end and low-pressure line-outgoing cable junction 100mm again, move on the built-in float of water level controller and touch waterproof press-button liquid level normally closed switch, and make its separation, by water level controller, connecting, how group 250A contactor coils cut off the power supply, its action is separated, reaching 250A A.C. contactor bottom stops power supply, when water level descends, this waterproof press-button liquid level normally closed switch moves and resets according to the built-in float of water level controller, the action of 250A A.C. contactor is closed, and low-pressure line-outgoing restores electricity.