CN205388711U - Sump pit water level control device - Google Patents

Abstract

(B, ) the utility model relates to a small -size sump pit water level control technical field of hydroelectric power plant is a sump pit water level control device, and it includes immersible pump, feed back control system and can the water level monitoring pipe of fixed mounting in the sump pit, the outside equipartition that surrounds water level monitoring pipe has the inlet opening, and inner and the water level monitoring pipe inner chamber of inlet opening communicate with each other, is fixed with high water level electrode head respectively in intracavity and the lower part inner chamber intracavity, middle part in, well water level electrode is first and low water level electrode head on water level monitoring pipe the upper portion in, and the motor of immersible pump passes through the water pump cable and feed back control system is electric is connected. The utility model has the advantages of reasonable and compact structure, convenient to use, it stops through opening of feed back control system automatic control immersible pump through the water level in the first real -time supervision sump pit of water level electrode, has realized immersible pump automatic operation, has reduced the spoilage of immersible pump and relay, is showing the work load of the intensity of labour that has reduced the personnel that tour and maintenance, maintenance moreover, has saved the cost of electricity -generating. (B, )

Description

Sump water-level control apparatus

Technical field

This utility model relates to small hydropower station sump water lev el control technical field, is a kind of sump water-level control apparatus.

Background technology

The sewage of output in current existing small-sized stream water channeling type hydroelectric power plant running, the cooling water that such as turbine-generator units uses, sewage unnecessary on lubrication water and top cover, it is typically all to be concentrated by drain pipe and drains into sump, when the water level of sump is higher, require over immersible pump to be discharged by the sewage in sump, if the water level of sump is too high, not only in Factory Building, ground is wet and slippery, The water splash in all directions, operator on duty is caused to patrol and examine difficulty, and penstock and each cooling water pipe can be caused to invade bubble for a long time, oxidation, easily cause penstock and pipe surface corrosion, make penstock and duct wall thinning, it is greatly shortened its service life.

Existing sump is in actual use, owing to silt flood period is bigger, sump silt content is many, not only make mechanical fitting abrasion bigger, and sump Sediment Siltation, sump volume is caused to diminish, the water level rise time shortens, level relay minimum point is buried by silt, cause level relay malfunctioning, immersible pump is buried by silt, cause immersible pump not draw water even to damage, turbine chamber during causing generating leaks seriously, sump waterflooding can be caused when leaking big, the hydraulic turbine is shut down, whole Factory Building waterflooding is even caused time serious, have impact on the properly functioning of equipment.

Existing sump water level control system is manual manipulation, operations staff special messenger is needed to nurse, add manpower and maintenance simultaneously, the workload safeguarded, frequent manual operation, easily make water pump ac contactor contact viscous dead, or scaling loss catalyst, and immersible pump frequent starting, easily cause immersible pump to damage, when there is secondary circuit fault, factory becomes protection Frequent trip, less reliable, automatically running of generating equipment is adversely affected, soft fault also easily occurs when the hydraulic turbine is properly functioning, cause control parameter drift, not only economic loss is big, maintenance workload is more, even cause Factory Building waterflooding, properly functioning to electromotor brings danger.

Therefore, the sump water level control system that existing hydroelectric power plant uses has the disadvantage that manual manipulation needs staff on duty, operation to waste time and energy in actual use, the fragile catalyst of frequent operation and immersible pump, affect that generating equipment is properly functioning, there is potential safety hazard.

Summary of the invention

This utility model provides a kind of sump water-level control apparatus, overcome the deficiency of above-mentioned prior art, its manual manipulation that can effectively solve the existence of existing sump water level control system needs staff on duty, operation to waste time and energy, the fragile catalyst of frequent operation and immersible pump, affect the problem that generating equipment is properly functioning, there is potential safety hazard.

The technical solution of the utility model is realized by following measures: a kind of sump water-level control apparatus, including immersible pump, feed back control system and the water level monitoring pipe that can be fixedly mounted in sump；It is evenly equipped with inlet opening around the outside of water level monitoring pipe, the inner of inlet opening communicates with water level monitoring tube cavity, in the upper lumen of water level monitoring pipe, it is respectively fixed with high water level electrode head in intracavity and lower lumen in middle part, middle water level electrode tip and low water level electrode head, immersible pump is positioned at the lower section of water level monitoring pipe lower end, the water inlet of immersible pump is positioned at immersible pump lower end and can communicate with inner chamber bottom sump, the outlet of immersible pump is connected to the sump blow-off pipe that can communicate with tail water drainage ditch, the motor of immersible pump is electrically connected with feed back control system by water pump cable, high water level electrode head, middle water level electrode tip and low water level electrode head electrically connect respectively through level electrode cable with feed back control system and can control immersible pump according to water level height and automatically work.

Further optimization and/or improvements to above-mentioned utility model technical scheme are presented herein below:

The upper end of above-mentioned water level monitoring pipe can be provided with the upper closure of through wires hole, and the middle part of level electrode cable is arranged in through wires hole；Or/and, the lower end of water level monitoring pipe can be fixed with filter screen.

Above-mentioned immersible pump can be blowdown submerged pump, and the outlet of blowdown submerged pump communicates with the water inlet of sump blow-off pipe, and blowdown submerged pump is provided with drain pump motors, and drain pump motors is electrically connected with feed back control system by feedback control circuit；Feed back control system can include control chamber, three pole main switchs, the first fuse, the second fuse, normally closed stop botton, permutator, blowdown liquid level relay, dredge pump catalyst and the first comprehensive protector of motor; permutator, normally closed stop botton are arranged on control chamber, and three pole main switchs, the first fuse, the second fuse, blowdown liquid level relay, dredge pump catalyst and the first comprehensive protector of motor are arranged in control chamber；Permutator includes can at the handle of the manual switching of dredge pump automatic transmission or dredge pump, the first switch contact, second switch contact and the 3rd switch contact, first switch contact and the electrical connection of second switch contact under dredge pump automatic transmission state, the first switch contact and the electrical connection of the 3rd switch contact under the manual state of dredge pump；Blowdown liquid level relay includes blowdown relay the first terminal, blowdown relay the second terminal, blowdown relay the 3rd terminal, blowdown relay the 4th terminal, blowdown relay the 5th terminal, blowdown relay the 6th terminal, blowdown relay the 7th terminal, blowdown relay the 8th terminal；Dredge pump catalyst includes blowdown contactor coil and normally opened three contacts, pole of blowdown motor that can close because blowdown contactor coil is energized, and the first comprehensive protector of motor includes first comprehensive guarantor's device coil and the first comprehensive guarantor's device normally opened contact that can close because of first comprehensive guarantor's device coil electricity.

Above-mentioned feedback control circuit can include dredge pump motor governor circuit, dredge pump motor automatic control circuit and dredge pump motor manual circuit；Dredge pump motor governor circuit includes power supply the first pole, power supply the second pole, power supply the 3rd pole, three pole main switchs, normally opened three contact, pole and the drain pump motors of blowdown motor, power supply the first pole passes sequentially through three pole main switchs, first binding post of normally opened three contacts, pole of blowdown motor and drain pump motors is electrically connected, power supply the second pole passes sequentially through three pole main switchs, second binding post of normally opened three contacts, pole of blowdown motor and drain pump motors is electrically connected, power supply the 3rd pole passes sequentially through three pole main switchs, 3rd binding post of normally opened three contacts, pole of blowdown motor and drain pump motors is electrically connected；nullDredge pump motor automatic control circuit includes power supply the first pole、First fuse、Normally closed stop botton、Blowdown relay the first terminal、Blowdown relay the 3rd terminal、Blowdown relay the 4th terminal、Blowdown relay the 5th terminal、Blowdown relay the 6th terminal、Blowdown relay the 7th terminal、Blowdown relay the 8th terminal、First switch contact、Second switch contact、High water level electrode head、Middle water level electrode tip、Low water level electrode head、Blowdown contactor coil、First combines guarantor's device normally opened contact、First combines guarantor's device coil、Second fuse and power supply the 3rd pole，Power supply the first pole、First fuse、Normally closed stop botton、Blowdown relay the first terminal sequentially electricity is serially connected，Blowdown relay the 3rd terminal and blowdown relay the first terminal are electrically connected，Blowdown relay the 4th terminal and second switch contact are electrically connected，First switch contact、First combines guarantor's device coil、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected，First combines the electrically in parallel two ends combining guarantor's device coil first after guarantor's device normally opened contact concatenates with blowdown contactor coil electricity，Blowdown relay the 5th terminal and high water level electrode head are electrically connected，Blowdown relay the 6th terminal and middle water level electrode tip are electrically connected，Blowdown relay the 7th terminal and low water level electrode head are electrically connected，Blowdown relay the 8th terminal、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected；Dredge pump motor manual circuit includes power supply the first pole, first fuse, normally closed stop botton, first switch contact, 3rd switch contact, first combines guarantor's device coil, first combines guarantor's device normally opened contact, blowdown contactor coil, second fuse and power supply the 3rd pole, power supply the first pole, first fuse, normally closed stop botton, 3rd switch contact sequentially electricity is serially connected, first switch contact, first combines guarantor's device coil, second fuse and power supply the 3rd pole sequentially electricity are serially connected, first combines the electrically in parallel two ends combining guarantor's device coil first after guarantor's device normally opened contact concatenates with blowdown contactor coil electricity.

Can being provided with total power light and dredge pump relay indicating light on above-mentioned control chamber, feedback control circuit also includes power indicating circuit and dredge pump indication lamp circuit；Power indicating circuit includes power supply the first pole, the first fuse, normally closed stop botton, total power light, the second fuse and power supply the 3rd pole, and power supply the first pole, the first fuse, normally closed stop botton, total power light, the second fuse, power supply the 3rd pole sequentially electricity are serially connected；Lamp normally opened contact is shown in the blowdown that dredge pump catalyst also includes to close because of the energising of blowdown contactor coil; dredge pump indication lamp circuit includes power supply the first pole, lamp normally opened contact, dredge pump relay indicating light, the second fuse and power supply the 3rd pole are shown in the first fuse, normally closed stop botton, blowdown, and power supply the first pole, the first fuse, normally closed stop botton, blowdown show that lamp normally opened contact, dredge pump relay indicating light, the second fuse, power supply the 3rd pole sequentially electricity are serially connected.

Above-mentioned immersible pump may also include standby immersible pump, and the outlet of standby immersible pump communicates with the water inlet of sump blow-off pipe, and standby immersible pump is provided with reserve pump motor, and reserve pump motor is electrically connected with feed back control system by feedback control circuit；Feed back control system also includes standby liquid level relay, stand-by pump catalyst and the second comprehensive protector of motor, and standby liquid level relay, stand-by pump catalyst and the second comprehensive protector of motor are arranged in control chamber；The handle of permutator can also in the manual switching of stand-by pump automatic transmission or stand-by pump, permutator also includes the 4th switch contact, the 5th switch contact and the 6th switch contact, 4th switch contact and the electrical connection of the 5th switch contact under stand-by pump automatic transmission state, the 4th switch contact and the electrical connection of the 6th switch contact under the manual state of stand-by pump；Standby liquid level relay includes duplicate relay the first terminal, duplicate relay the second terminal, duplicate relay the 3rd terminal, duplicate relay the 4th terminal, duplicate relay the 5th terminal, duplicate relay the 6th terminal, duplicate relay the 7th terminal, duplicate relay the 8th terminal；Stand-by pump catalyst includes standby contactor coil and normally opened three contacts, pole of standby motor that can close because standby contactor coil is energized, and the second comprehensive protector of motor includes second comprehensive guarantor's device coil and the second comprehensive guarantor's device normally opened contact that can close because of second comprehensive guarantor's device coil electricity.

Above-mentioned feedback control circuit can include stand-by pump motor governor circuit, stand-by pump motor automatic control circuit and stand-by pump motor manual circuit；Stand-by pump motor governor circuit includes power supply the first pole, power supply the second pole, power supply the 3rd pole, three pole main switchs, normally opened three contacts, pole of standby motor and reserve pump motor, power supply the first pole passes sequentially through three pole main switchs, first binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected, power supply the second pole passes sequentially through three pole main switchs, second binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected, power supply the 3rd pole passes sequentially through three pole main switchs, 3rd binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected；nullStand-by pump motor automatic control circuit includes power supply the first pole、First fuse、Normally closed stop botton、Duplicate relay the first terminal、Duplicate relay the 3rd terminal、Duplicate relay the 4th terminal、Duplicate relay the 5th terminal、Duplicate relay the 6th terminal、Duplicate relay the 7th terminal、Duplicate relay the 8th terminal、4th switch contact、5th switch contact、High water level electrode head、Middle water level electrode tip、Low water level electrode head、Standby contactor coil、Second combines guarantor's device normally opened contact、Second combines guarantor's device coil、Second fuse and power supply the 3rd pole，Power supply the first pole、First fuse、Normally closed stop botton、Duplicate relay the first terminal sequentially electricity is serially connected，Duplicate relay the 3rd terminal and duplicate relay the first terminal are electrically connected，Duplicate relay the 4th terminal and the 5th switch contact are electrically connected，4th switch contact、Second combines guarantor's device coil、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected，Second combines the electrically in parallel two ends combining guarantor's device coil second after guarantor's device normally opened contact concatenates with standby contactor coil electricity，Duplicate relay the 5th terminal and high water level electrode head are electrically connected，Duplicate relay the 6th terminal and middle water level electrode tip are electrically connected，Duplicate relay the 7th terminal and low water level electrode head are electrically connected，Duplicate relay the 8th terminal、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected；Stand-by pump motor manual circuit includes power supply the first pole, first fuse, normally closed stop botton, 4th switch contact, 6th switch contact, second combines guarantor's device coil, second combines guarantor's device normally opened contact, standby contactor coil, second fuse and power supply the 3rd pole, power supply the first pole, first fuse, normally closed stop botton, 6th switch contact sequentially electricity is serially connected, 4th switch contact, second combines guarantor's device coil, second fuse and power supply the 3rd pole sequentially electricity are serially connected, second combines the electrically in parallel two ends combining guarantor's device coil second after guarantor's device normally opened contact concatenates with standby contactor coil electricity.

Can being provided with stand-by pump relay indicating light on above-mentioned control chamber, feedback control circuit also includes stand-by pump indication lamp circuit；Stand-by pump catalyst also includes the standby lamp normally opened contact that shows that can close because of the energising of standby contactor coil; stand-by pump indication lamp circuit includes power supply the first pole, the first fuse, normally closed stop botton, standby lamp normally opened contact, stand-by pump relay indicating light, the second fuse and power supply the 3rd pole of showing, power supply the first pole, the first fuse, normally closed stop botton, standby shows that lamp normally opened contact, stand-by pump relay indicating light, the second fuse, power supply the 3rd pole sequentially electricity are serially connected.

This utility model reasonable and compact in structure, easy to use, it monitors the water level in sump in real time by level electrode head, start and stop by feed back control system automatic controlled submersible pump, achieve immersible pump automatically to run, reduce the spoilage of immersible pump and relay, and significantly reduce the labor intensity of tour personnel and the workload of maintenance, maintenance, save cost of electricity-generating.

Accompanying drawing explanation

Accompanying drawing 1 is the main TV structure schematic diagram of this utility model most preferred embodiment.

Accompanying drawing 2 is the structure for amplifying schematic diagram of the water level monitoring pipe in accompanying drawing 1.

Accompanying drawing 3 is control circuit schematic diagram of the present utility model.

nullCoding in accompanying drawing is respectively as follows: 1 for immersible pump，2 is water level monitoring pipe，3 is inlet opening，4 is upper closure，5 is filter screen，6 is tail water drainage ditch，7 is sump blow-off pipe，8 is water pump cable，9 is level electrode cable，10 is diversion pressure steel tube，11 is the hydraulic turbine，12 is runner，13 is electromotor soil pipe，14 is control chamber，15 is permutator，16 is blowdown liquid level relay，17 is dredge pump catalyst，18 is the first comprehensive protector of motor，19 is standby liquid level relay，20 is stand-by pump catalyst，21 is the second comprehensive protector of motor，22 is sump，H1 is the high water level electrode head height from immersible pump water inlet，H2 is the middle water level electrode tip height from immersible pump water inlet，H3 is the low water level electrode head height from immersible pump water inlet，T1 is high water level electrode head，T2 is middle water level electrode tip，T3 is low water level electrode head，PM1 is drain pump motors，L1 is power supply the first pole，L2 is power supply the second pole、L3 is power supply the 3rd pole，Q is three pole main switchs，FU1 is the first fuse，FU2 is the second fuse，SB1 is normally closed stop botton，K1 is the first switch contact，K2 is second switch contact，K3 is the 3rd switch contact，K4 is the 4th switch contact，K5 is the 5th switch contact，K6 is the 6th switch contact，KM10 is blowdown contactor coil，KM11 is normally opened three contacts, pole of blowdown motor，KM12 is that lamp normally opened contact is shown in blowdown，KM20 is first comprehensive guarantor's device coil，KM21 is first comprehensive guarantor's device normally opened contact，PM2 is reserve pump motor，KM30 is standby contactor coil，KM31 is normally opened three contacts, pole of standby motor，KM32 standby shows lamp normally opened contact，KM40 is second comprehensive guarantor's device coil，KM41 is second comprehensive guarantor's device normally opened contact，M1 is blowdown relay the first terminal，M2 is blowdown relay the second terminal，M3 is blowdown relay the 3rd terminal，M4 is blowdown relay the 4th terminal，M5 is blowdown relay the 5th terminal，M6 is blowdown relay the 6th terminal，M7 is blowdown relay the 7th terminal，M8 is blowdown relay the 8th terminal，LD1 is total power light，LD2 is dredge pump relay indicating light，LD3 is stand-by pump relay indicating light，N1 is duplicate relay the first terminal，N2 is duplicate relay the second terminal，N3 is duplicate relay the 3rd terminal，N4 is duplicate relay the 4th terminal，N5 is duplicate relay the 5th terminal，N6 is duplicate relay the 6th terminal，N7 is duplicate relay the 7th terminal，N8 is duplicate relay the 8th terminal.

Detailed description of the invention

This utility model, not by the restriction of following embodiment, can determine specific embodiment according to the technical solution of the utility model and practical situation.

In this utility model, for the ease of describing, the Butut mode that the description of the relative position relation of each parts is all according to Figure of description 1 is described, as: the position relationship of forward and backward, upper and lower, left and right etc. is based on what the Butut direction of Figure of description was determined.

Below in conjunction with embodiment and accompanying drawing, this utility model is further described:

As shown in accompanying drawing 1,2, this sump water-level control apparatus includes immersible pump 1, feed back control system and the water level monitoring pipe 2 can being fixedly mounted in sump 22；nullIt is evenly equipped with inlet opening 3 around the outside of water level monitoring pipe 2，The inner of inlet opening 3 communicates with water level monitoring pipe 2 inner chamber，In the upper lumen of water level monitoring pipe 2、It is respectively fixed with high water level electrode head T1 in intracavity and lower lumen in middle part、Middle water level electrode tip T2 and low water level electrode head T3，Immersible pump 1 is positioned at the lower section of water level monitoring pipe 2 lower end，The water inlet of immersible pump 1 is positioned at immersible pump 1 lower end and can communicate with inner chamber bottom sump 22，The outlet of immersible pump 1 is connected to the sump blow-off pipe 7 that can communicate with tail water drainage ditch 6，The motor of immersible pump 1 is electrically connected with feed back control system by water pump cable 8，High water level electrode head T1、Middle water level electrode tip T2 and low water level electrode head T3 electrically connects respectively through level electrode cable 9 with feed back control system and can control immersible pump 1 according to water level height and automatically work.Water in upper pond guides the hydraulic turbine 11 by diversion pressure steel tube 10 into through butterfly valve, the runner 12 promoting the hydraulic turbine 11 rotates, drive electrical generators generates electricity, sewage in turbine chamber enters in sump 22 by electromotor soil pipe 13, and the sewage in sump 22 is extracted out and passed through sump blow-off pipe 7 and enters tail water drainage ditch 6 by immersible pump 1.This utility model passes through high water level electrode head T1, middle water level electrode tip T2 and low water level electrode head T3 can monitor the water level in sump 22 in real time, start and stop by feed back control system automatic controlled submersible pump 1, the automatic operation of immersible pump 1 can be realized, owing to reducing the number of starts of immersible pump 1, greatly reduce the spoilage of immersible pump 1 and relay, and greatly reduce the labor intensity of tour personnel, significantly reduce maintenance, the workload safeguarded, save cost of electricity-generating, extend the safe and stable operation time of hydro-electric power generating equipment, improve the utilization rate of generating equipment, add annual electricity generating capacity.

According to actual needs, above-mentioned sump water-level control apparatus can be made further optimization and/or improvements:

As shown in accompanying drawing 1,2, the upper end of water level monitoring pipe 2 is provided with the upper closure 4 of through wires hole, and the middle part of level electrode cable 9 is arranged in through wires hole；Or/and, the lower end of water level monitoring pipe 2 is fixed with filter screen 5.Upper closure 4 can block the upper end mouth of pipe of water level monitoring pipe 2, it is prevented that top sewage is fallen interference level electrode head by the upper end of water level monitoring pipe 2；Filter screen 5 is used to cover the lower end mouth of pipe of water level monitoring pipe 2, it is possible to prevent sand, mud from entering and blocking water level monitoring pipe 2；Time actually used, water level monitoring pipe 2 is preferably pvc pipe, it is outside that the best colligation of water pump cable 8 is fixed on water level monitoring pipe 2, upper closure 4 is preferably fire prevention woollen cloth, preferably making the high water level electrode head height H1 from immersible pump water inlet is 7.5 meters, the middle water level electrode tip height H2 from immersible pump water inlet is 4.5 meters, and the low water level electrode head height H3 from immersible pump water inlet is 1.5 meters.

As shown in accompanying drawing 1,2,3, immersible pump 1 is blowdown submerged pump, the outlet of blowdown submerged pump communicates with the water inlet of sump blow-off pipe 7, blowdown submerged pump is provided with drain pump motors PM1, drain pump motors PM1 and is electrically connected with feed back control system by feedback control circuit；Feed back control system includes control chamber 14, three pole main switch Q, the first fuse FU1, the second fuse FU2, normally closed stop botton SB1, permutator 15, blowdown liquid level relay 16, dredge pump catalyst 17 and the first comprehensive protector of motor 18; permutator 15, normally closed stop botton SB1 are arranged on control chamber 14, and three pole main switch Q, the first fuse FU1, the second fuse FU2, blowdown liquid level relay 16, dredge pump catalyst 17 and the first comprehensive protector of motor 18 are arranged in control chamber 14；Permutator 15 includes can at the handle of the manual switching of dredge pump automatic transmission or dredge pump, the first switch contact K1, second switch contact K2 and the three switch contact K3, first switch contact K1 and second switch contact K2 electrical connection under dredge pump automatic transmission state, the first switch contact K1 and the three switch contact K3 electrical connection under the manual state of dredge pump；Blowdown liquid level relay 16 includes blowdown relay the first terminal M1, blowdown relay the second terminal M2, blowdown relay the 3rd terminal M3, blowdown relay the 4th terminal M4, blowdown relay the 5th terminal M5, blowdown relay the 6th terminal M6, blowdown relay the 7th terminal M7, blowdown relay the 8th terminal M8；Dredge pump catalyst 17 includes blowdown contactor coil KM10 and normally opened three contact, the pole KM11 of blowdown motor that can close because blowdown contactor coil KM10 energising, and the first comprehensive protector of motor 18 includes the first comprehensive device coil KM20 of guarantor and combines guarantor device normally opened contact KM21 with can close because the first comprehensive device coil KM20 of guarantor is energized first.Power supply can being realized master control by three pole main switch Q, three pole main switch Q are preferably electric leakage air switch, when catalyst contact is aging cause open-phase fault time, electric leakage air switch can tripping protection immersible pump 1 motor；Can in case of emergency be shut down rapidly by normally closed stop botton SB1, safe ready more；Circuit can be protected by the first fuse FU1 and the second fuse FU2; prevent the motor making immersible pump 1 because of fault from burning out; when there is short trouble in control circuit; such as the first comprehensive protector of motor 18 burns out, blowdown liquid level relay 16 burns out, the coil of dredge pump catalyst 17 burns out etc.; first fuse FU1 and the second fuse FU2 can fuse immediately and make circuit disconnect, thus protecting control circuit；When catalyst contact is aging cause open-phase fault time; first comprehensive protector of motor 18 can disconnect feedback control circuit, protection drain pump motors PM1; it is made to burn out drain pump motors PM1 power-off; when drain pump motors PM1 be in operation short trouble occurs time, the first comprehensive protector of motor 18 can rapidly disconnecting circuit thus protecting drain pump motors PM1.

As shown in accompanying drawing 1,2,3, feedback control circuit includes dredge pump motor governor circuit, dredge pump motor automatic control circuit and dredge pump motor manual circuit；Dredge pump motor governor circuit includes power supply the first pole L1, power supply the second pole L2, power supply the 3rd pole L3, three pole main switch Q, normally opened three contact, the pole KM11 and drain pump motors PM1 of blowdown motor, power supply the first pole L1 passes sequentially through three pole main switch Q, first binding post of normally opened three contact, the pole KM11 of blowdown motor and drain pump motors PM1 is electrically connected, power supply the second pole L2 passes sequentially through three pole main switch Q, second binding post of normally opened three contact, the pole KM11 of blowdown motor and drain pump motors PM1 is electrically connected, power supply the 3rd pole L3 passes sequentially through three pole main switch Q, 3rd binding post of normally opened three contact, the pole KM11 of blowdown motor and drain pump motors PM1 is electrically connected；nullDredge pump motor automatic control circuit includes power supply the first pole L1、First fuse FU1、Normally closed stop botton SB1、Blowdown relay the first terminal M1、Blowdown relay the 3rd terminal M3、Blowdown relay the 4th terminal M4、Blowdown relay the 5th terminal M5、Blowdown relay the 6th terminal M6、Blowdown relay the 7th terminal M7、Blowdown relay the 8th terminal M8、First switch contact K1、Second switch contact K2、High water level electrode head T1、Middle water level electrode tip T2、Low water level electrode head T3、Blowdown contactor coil KM10、First combines guarantor device normally opened contact KM21、First combines guarantor device coil KM20、Second fuse FU2 and power supply the 3rd pole L3，Power supply the first pole L1、First fuse FU1、Normally closed stop botton SB1、Blowdown relay the first terminal M1 sequentially electricity is serially connected，Blowdown relay the 3rd terminal M3 and blowdown relay the first terminal M1 is electrically connected，Blowdown relay the 4th terminal M4 and second switch contact K2 is electrically connected，First switch contact K1、First combines guarantor device coil KM20、Second fuse FU2、Power supply the 3rd pole L3 sequentially electricity is serially connected，First combines the electrically in parallel two ends combining guarantor device coil KM20 first after guarantor device normally opened contact KM21 concatenates with blowdown contactor coil KM10 electricity，Blowdown relay the 5th terminal M5 and high water level electrode head T1 is electrically connected，Blowdown relay the 6th terminal M6 and middle water level electrode tip T2 is electrically connected，Blowdown relay the 7th terminal M7 and low water level electrode head T3 is electrically connected，Blowdown relay the 8th terminal M8、Second fuse FU2、Power supply the 3rd pole L3 sequentially electricity is serially connected；Dredge pump motor manual circuit includes power supply the first pole L1, first fuse FU1, normally closed stop botton SB1, first switch contact K1, 3rd switch contact K3, first combines guarantor device coil KM20, first combines guarantor device normally opened contact KM21, blowdown contactor coil KM10, second fuse FU2 and power supply the 3rd pole L3, power supply the first pole L1, first fuse FU1, normally closed stop botton SB1, 3rd switch contact K3 sequentially electricity is serially connected, first switch contact K1, first combines guarantor device coil KM20, second fuse FU2 and power supply the 3rd pole L3 sequentially electricity are serially connected, first combines the electrically in parallel two ends combining guarantor device coil KM20 first after guarantor device normally opened contact KM21 concatenates with blowdown contactor coil KM10 electricity.nullThe water level in level electrode head detection sump 22 can be passed through by dredge pump motor automatic control circuit，Realize the automatic operation of drain pump motors PM1，When the water level in sump 22 rises to high water level electrode head T1 position，The water in circuit because sump 22 between high water level electrode head T1 and middle water level electrode tip T2 and turn on，Dredge pump motor governor circuit is connected，Drain pump motors PM1 starts automatically，Sewage in sump 22 is drained into tail water drainage ditch 6 by sump blow-off pipe 7，Middle water level electrode tip T2 and low water level electrode head T3 plays self-holding function，When the water level decreasing in sump 22 to middle water level electrode tip T2 position，Circuit because between middle water level electrode tip T2 and low water level electrode head T3 is anhydrous lose self-holding function and disconnect while，Drain pump motors PM1 is automatically stopped；Be capable of the manual operation of drain pump motors PM1 by dredge pump motor manual circuit, use convenient reliably.

As shown in accompanying drawing 1,2,3, control chamber 14 being provided with total power light LD1 and dredge pump relay indicating light LD2, feedback control circuit also includes power indicating circuit and dredge pump indication lamp circuit；Power indicating circuit includes power supply the first pole L1, the first fuse FU1, normally closed stop botton SB1, total power light LD1, the second fuse FU2 and power supply the 3rd pole L3, and power supply the first pole L1, the first fuse FU1, normally closed stop botton SB1, total power light LD1, the second fuse FU2, power supply the 3rd pole L3 sequentially electricity are serially connected；Lamp normally opened contact KM12 is shown in the blowdown that dredge pump catalyst 17 also includes to close because of blowdown contactor coil KM10 energising; dredge pump indication lamp circuit includes power supply the first pole L1, lamp normally opened contact KM12, dredge pump relay indicating light LD2, the second fuse FU2 and power supply the 3rd pole L3 are shown in the first fuse FU1, normally closed stop botton SB1, blowdown, and power supply the first pole L1, the first fuse FU1, normally closed stop botton SB1, blowdown show that lamp normally opened contact KM12, dredge pump relay indicating light LD2, the second fuse FU2, power supply the 3rd pole L3 sequentially electricity are serially connected.Can making total power light LD1 electrified light emitting when power supply is energized by power indicating circuit, prompting perambulator person's external power supply is normal, three pole main switch Q are in opening；Can when drain pump motors PM1 work by dredge pump indication lamp circuit, dredge pump relay indicating light LD2 electrified light emitting, tour personnel drain pump motors PM1 is in running order in prompting, more safe and reliable.According to actual needs, it is possible to making total power light LD1 is green light, making dredge pump relay indicating light LD2 is red light.

As shown in accompanying drawing 1,2,3, immersible pump 1 also includes standby immersible pump, the outlet of standby immersible pump communicates with the water inlet of sump blow-off pipe 7, standby immersible pump is provided with reserve pump motor PM2, reserve pump motor PM2 and is electrically connected with feed back control system by feedback control circuit；Feed back control system also includes standby liquid level relay 19, stand-by pump catalyst 20 and the second comprehensive protector of motor 21, and standby liquid level relay 19, stand-by pump catalyst 20 and the second comprehensive protector of motor 21 are arranged in control chamber 14；The handle of permutator 15 can also in the manual switching of stand-by pump automatic transmission or stand-by pump, permutator 15 also includes the 4th switch contact K4, the 5th switch contact K5 and the six switch contact K6,4th switch contact K4 and the five switch contact K5 electrical connection under stand-by pump automatic transmission state, the 4th switch contact K4 and the six switch contact K6 electrical connection under the manual state of stand-by pump；Standby liquid level relay 19 includes duplicate relay the first terminal N1, duplicate relay the second terminal N2, duplicate relay the 3rd terminal N3, duplicate relay the 4th terminal N4, duplicate relay the 5th terminal N5, duplicate relay the 6th terminal N6, duplicate relay the 7th terminal N7, duplicate relay the 8th terminal N8；Stand-by pump catalyst 20 includes standby contactor coil KM30 and normally opened three contact, the pole KM31 of standby motor that can close because standby contactor coil KM30 energising, and the second comprehensive protector of motor 21 includes the second comprehensive device coil KM40 of guarantor and combines guarantor device normally opened contact KM41 with can close because the second comprehensive device coil KM40 of guarantor is energized second.By arranging standby immersible pump, it is possible to be easy to the maintenance of blowdown submerged pump, do not affect the draining of sump 22 when relevant device overhauls, it is ensured that the normal power generation work of the hydraulic turbine 11.When catalyst contact is aging cause open-phase fault time; second comprehensive protector of motor 21 can disconnect feedback control circuit, protection reserve pump motor PM2; it is made to burn out reserve pump motor PM2 power-off; when reserve pump motor PM2 be in operation short trouble occurs time, the second comprehensive protector of motor 21 can rapidly disconnecting circuit thus protecting reserve pump motor PM2.

As shown in accompanying drawing 1,2,3, feedback control circuit includes stand-by pump motor governor circuit, stand-by pump motor automatic control circuit and stand-by pump motor manual circuit；Stand-by pump motor governor circuit includes power supply the first pole L1, power supply the second pole L2, power supply the 3rd pole L3, three pole main switch Q, standby motor normally opened three contact, pole KM31 and reserve pump motor PM2, power supply the first pole L1 passes sequentially through three pole main switch Q, first binding post of normally opened three contact, the pole KM31 of standby motor and reserve pump motor PM2 is electrically connected, power supply the second pole L2 passes sequentially through three pole main switch Q, second binding post of normally opened three contact, the pole KM31 of standby motor and reserve pump motor PM2 is electrically connected, power supply the 3rd pole L3 passes sequentially through three pole main switch Q, 3rd binding post of normally opened three contact, the pole KM31 of standby motor and reserve pump motor PM2 is electrically connected；nullStand-by pump motor automatic control circuit includes power supply the first pole L1、First fuse FU1、Normally closed stop botton SB1、Duplicate relay the first terminal N1、Duplicate relay the 3rd terminal N3、Duplicate relay the 4th terminal N4、Duplicate relay the 5th terminal N5、Duplicate relay the 6th terminal N6、Duplicate relay the 7th terminal N7、Duplicate relay the 8th terminal N8、4th switch contact K4、5th switch contact K5、High water level electrode head T1、Middle water level electrode tip T2、Low water level electrode head T3、Standby contactor coil KM30、Second combines guarantor device normally opened contact KM41、Second combines guarantor device coil KM40、Second fuse FU2 and power supply the 3rd pole L3，Power supply the first pole L1、First fuse FU1、Normally closed stop botton SB1、Duplicate relay the first terminal N1 sequentially electricity is serially connected，Duplicate relay the 3rd terminal N3 and duplicate relay the first terminal N1 is electrically connected，Duplicate relay the 4th terminal N4 and the five switch contact K5 is electrically connected，4th switch contact K4、Second combines guarantor device coil KM40、Second fuse FU2、Power supply the 3rd pole L3 sequentially electricity is serially connected，Second combines the electrically in parallel two ends combining guarantor device coil KM40 second after guarantor device normally opened contact KM41 concatenates with standby contactor coil KM30 electricity，Duplicate relay the 5th terminal N5 and high water level electrode head T1 is electrically connected，Duplicate relay the 6th terminal N6 and middle water level electrode tip T2 is electrically connected，Duplicate relay the 7th terminal N7 and low water level electrode head T3 is electrically connected，Duplicate relay the 8th terminal N8、Second fuse FU2、Power supply the 3rd pole L3 sequentially electricity is serially connected；Stand-by pump motor manual circuit includes power supply the first pole L1, first fuse FU1, normally closed stop botton SB1, 4th switch contact K4, 6th switch contact K6, second combines guarantor device coil KM40, second combines guarantor device normally opened contact KM41, standby contactor coil KM30, second fuse FU2 and power supply the 3rd pole L3, power supply the first pole L1, first fuse FU1, normally closed stop botton SB1, 6th switch contact K6 sequentially electricity is serially connected, 4th switch contact K4, second combines guarantor device coil KM40, second fuse FU2 and power supply the 3rd pole L3 sequentially electricity are serially connected, second combines the electrically in parallel two ends combining guarantor device coil KM40 second after guarantor device normally opened contact KM41 concatenates with standby contactor coil KM30 electricity.nullThe water level in level electrode head detection sump 22 can be passed through by stand-by pump motor automatic control circuit，Realize the automatic operation of reserve pump motor PM2，When the water level in sump 22 rises to high water level electrode head T1 position，The water in circuit because sump 22 between high water level electrode head T1 and middle water level electrode tip T2 and turn on，Stand-by pump motor governor circuit is connected，Reserve pump motor PM2 starts automatically，Sewage in sump 22 is drained into tail water drainage ditch 6 by sump blow-off pipe 7，Middle water level electrode tip T2 and low water level electrode head T3 plays self-holding function，When the water level decreasing in sump 22 to middle water level electrode tip T2 position，Circuit because between middle water level electrode tip T2 and low water level electrode head T3 is anhydrous lose self-holding function and disconnect while，Reserve pump motor PM2 is automatically stopped；Be capable of the manual operation of reserve pump motor PM2 by stand-by pump motor manual circuit, use convenient reliably.

As shown in accompanying drawing 1,2,3, control chamber 14 being provided with stand-by pump relay indicating light LD3, feedback control circuit also includes stand-by pump indication lamp circuit；Stand-by pump catalyst 20 also includes the standby lamp normally opened contact KM32 that shows that can close because of standby contactor coil KM30 energising; stand-by pump indication lamp circuit includes power supply the first pole L1, the first fuse FU1, normally closed stop botton SB1, standby lamp normally opened contact KM32, stand-by pump relay indicating light LD3, the second fuse FU2 and power supply the 3rd pole L3 of showing, power supply the first pole L1, the first fuse FU1, normally closed stop botton SB1, standby shows that lamp normally opened contact KM32, stand-by pump relay indicating light LD3, the second fuse FU2, power supply the 3rd pole L3 sequentially electricity are serially connected.Can when reserve pump motor PM2 work by stand-by pump indication lamp circuit, stand-by pump relay indicating light LD3 electrified light emitting, tour personnel reserve pump motor PM2 is in running order in prompting, more safe and reliable.According to actual needs, it is possible to making stand-by pump relay indicating light LD3 is amber light, in order to distinguish.

Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.

Claims (14)

1. a sump water-level control apparatus, it is characterised in that include immersible pump, feed back control system and the water level monitoring pipe can being fixedly mounted in sump；It is evenly equipped with inlet opening around the outside of water level monitoring pipe, the inner of inlet opening communicates with water level monitoring tube cavity, in the upper lumen of water level monitoring pipe, it is respectively fixed with high water level electrode head in intracavity and lower lumen in middle part, middle water level electrode tip and low water level electrode head, immersible pump is positioned at the lower section of water level monitoring pipe lower end, the water inlet of immersible pump is positioned at immersible pump lower end and can communicate with inner chamber bottom sump, the outlet of immersible pump is connected to the sump blow-off pipe that can communicate with tail water drainage ditch, the motor of immersible pump is electrically connected with feed back control system by water pump cable, high water level electrode head, middle water level electrode tip and low water level electrode head electrically connect respectively through level electrode cable with feed back control system and can control immersible pump according to water level height and automatically work.

2. sump water-level control apparatus according to claim 1, it is characterised in that the upper end of water level monitoring pipe is provided with the upper closure of through wires hole, and the middle part of level electrode cable is arranged in through wires hole；Or/and, the lower end of water level monitoring pipe is fixed with filter screen.

3. sump water-level control apparatus according to claim 1 and 2, it is characterized in that immersible pump is blowdown submerged pump, the outlet of blowdown submerged pump communicates with the water inlet of sump blow-off pipe, being provided with drain pump motors on blowdown submerged pump, drain pump motors is electrically connected with feed back control system by feedback control circuit；Feed back control system includes control chamber, three pole main switchs, the first fuse, the second fuse, normally closed stop botton, permutator, blowdown liquid level relay, dredge pump catalyst and the first comprehensive protector of motor; permutator, normally closed stop botton are arranged on control chamber, and three pole main switchs, the first fuse, the second fuse, blowdown liquid level relay, dredge pump catalyst and the first comprehensive protector of motor are arranged in control chamber；Permutator includes can at the handle of the manual switching of dredge pump automatic transmission or dredge pump, the first switch contact, second switch contact and the 3rd switch contact, first switch contact and the electrical connection of second switch contact under dredge pump automatic transmission state, the first switch contact and the electrical connection of the 3rd switch contact under the manual state of dredge pump；Blowdown liquid level relay includes blowdown relay the first terminal, blowdown relay the second terminal, blowdown relay the 3rd terminal, blowdown relay the 4th terminal, blowdown relay the 5th terminal, blowdown relay the 6th terminal, blowdown relay the 7th terminal, blowdown relay the 8th terminal；Dredge pump catalyst includes blowdown contactor coil and normally opened three contacts, pole of blowdown motor that can close because blowdown contactor coil is energized, and the first comprehensive protector of motor includes first comprehensive guarantor's device coil and the first comprehensive guarantor's device normally opened contact that can close because of first comprehensive guarantor's device coil electricity.

4. sump water-level control apparatus according to claim 3, it is characterised in that feedback control circuit includes dredge pump motor governor circuit, dredge pump motor automatic control circuit and dredge pump motor manual circuit；Dredge pump motor governor circuit includes power supply the first pole, power supply the second pole, power supply the 3rd pole, three pole main switchs, normally opened three contact, pole and the drain pump motors of blowdown motor, power supply the first pole passes sequentially through three pole main switchs, first binding post of normally opened three contacts, pole of blowdown motor and drain pump motors is electrically connected, power supply the second pole passes sequentially through three pole main switchs, second binding post of normally opened three contacts, pole of blowdown motor and drain pump motors is electrically connected, power supply the 3rd pole passes sequentially through three pole main switchs, 3rd binding post of normally opened three contacts, pole of blowdown motor and drain pump motors is electrically connected；nullDredge pump motor automatic control circuit includes power supply the first pole、First fuse、Normally closed stop botton、Blowdown relay the first terminal、Blowdown relay the 3rd terminal、Blowdown relay the 4th terminal、Blowdown relay the 5th terminal、Blowdown relay the 6th terminal、Blowdown relay the 7th terminal、Blowdown relay the 8th terminal、First switch contact、Second switch contact、High water level electrode head、Middle water level electrode tip、Low water level electrode head、Blowdown contactor coil、First combines guarantor's device normally opened contact、First combines guarantor's device coil、Second fuse and power supply the 3rd pole，Power supply the first pole、First fuse、Normally closed stop botton、Blowdown relay the first terminal sequentially electricity is serially connected，Blowdown relay the 3rd terminal and blowdown relay the first terminal are electrically connected，Blowdown relay the 4th terminal and second switch contact are electrically connected，First switch contact、First combines guarantor's device coil、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected，First combines the electrically in parallel two ends combining guarantor's device coil first after guarantor's device normally opened contact concatenates with blowdown contactor coil electricity，Blowdown relay the 5th terminal and high water level electrode head are electrically connected，Blowdown relay the 6th terminal and middle water level electrode tip are electrically connected，Blowdown relay the 7th terminal and low water level electrode head are electrically connected，Blowdown relay the 8th terminal、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected；Dredge pump motor manual circuit includes power supply the first pole, first fuse, normally closed stop botton, first switch contact, 3rd switch contact, first combines guarantor's device coil, first combines guarantor's device normally opened contact, blowdown contactor coil, second fuse and power supply the 3rd pole, power supply the first pole, first fuse, normally closed stop botton, 3rd switch contact sequentially electricity is serially connected, first switch contact, first combines guarantor's device coil, second fuse and power supply the 3rd pole sequentially electricity are serially connected, first combines the electrically in parallel two ends combining guarantor's device coil first after guarantor's device normally opened contact concatenates with blowdown contactor coil electricity.

5. sump water-level control apparatus according to claim 4, it is characterised in that be provided with total power light and dredge pump relay indicating light on control chamber, feedback control circuit also includes power indicating circuit and dredge pump indication lamp circuit；Power indicating circuit includes power supply the first pole, the first fuse, normally closed stop botton, total power light, the second fuse and power supply the 3rd pole, and power supply the first pole, the first fuse, normally closed stop botton, total power light, the second fuse, power supply the 3rd pole sequentially electricity are serially connected；Lamp normally opened contact is shown in the blowdown that dredge pump catalyst also includes to close because of the energising of blowdown contactor coil; dredge pump indication lamp circuit includes power supply the first pole, lamp normally opened contact, dredge pump relay indicating light, the second fuse and power supply the 3rd pole are shown in the first fuse, normally closed stop botton, blowdown, and power supply the first pole, the first fuse, normally closed stop botton, blowdown show that lamp normally opened contact, dredge pump relay indicating light, the second fuse, power supply the 3rd pole sequentially electricity are serially connected.

6. sump water-level control apparatus according to claim 3, it is characterized in that immersible pump also includes standby immersible pump, the outlet of standby immersible pump communicates with the water inlet of sump blow-off pipe, being provided with reserve pump motor on standby immersible pump, reserve pump motor is electrically connected with feed back control system by feedback control circuit；Feed back control system also includes standby liquid level relay, stand-by pump catalyst and the second comprehensive protector of motor, and standby liquid level relay, stand-by pump catalyst and the second comprehensive protector of motor are arranged in control chamber；The handle of permutator can also in the manual switching of stand-by pump automatic transmission or stand-by pump, permutator also includes the 4th switch contact, the 5th switch contact and the 6th switch contact, 4th switch contact and the electrical connection of the 5th switch contact under stand-by pump automatic transmission state, the 4th switch contact and the electrical connection of the 6th switch contact under the manual state of stand-by pump；Standby liquid level relay includes duplicate relay the first terminal, duplicate relay the second terminal, duplicate relay the 3rd terminal, duplicate relay the 4th terminal, duplicate relay the 5th terminal, duplicate relay the 6th terminal, duplicate relay the 7th terminal, duplicate relay the 8th terminal；Stand-by pump catalyst includes standby contactor coil and normally opened three contacts, pole of standby motor that can close because standby contactor coil is energized, and the second comprehensive protector of motor includes second comprehensive guarantor's device coil and the second comprehensive guarantor's device normally opened contact that can close because of second comprehensive guarantor's device coil electricity.

7. sump water-level control apparatus according to claim 4, it is characterized in that immersible pump also includes standby immersible pump, the outlet of standby immersible pump communicates with the water inlet of sump blow-off pipe, being provided with reserve pump motor on standby immersible pump, reserve pump motor is electrically connected with feed back control system by feedback control circuit；Feed back control system also includes standby liquid level relay, stand-by pump catalyst and the second comprehensive protector of motor, and standby liquid level relay, stand-by pump catalyst and the second comprehensive protector of motor are arranged in control chamber；The handle of permutator can also in the manual switching of stand-by pump automatic transmission or stand-by pump, permutator also includes the 4th switch contact, the 5th switch contact and the 6th switch contact, 4th switch contact and the electrical connection of the 5th switch contact under stand-by pump automatic transmission state, the 4th switch contact and the electrical connection of the 6th switch contact under the manual state of stand-by pump；Standby liquid level relay includes duplicate relay the first terminal, duplicate relay the second terminal, duplicate relay the 3rd terminal, duplicate relay the 4th terminal, duplicate relay the 5th terminal, duplicate relay the 6th terminal, duplicate relay the 7th terminal, duplicate relay the 8th terminal；Stand-by pump catalyst includes standby contactor coil and normally opened three contacts, pole of standby motor that can close because standby contactor coil is energized, and the second comprehensive protector of motor includes second comprehensive guarantor's device coil and the second comprehensive guarantor's device normally opened contact that can close because of second comprehensive guarantor's device coil electricity.

8. sump water-level control apparatus according to claim 5, it is characterized in that immersible pump also includes standby immersible pump, the outlet of standby immersible pump communicates with the water inlet of sump blow-off pipe, being provided with reserve pump motor on standby immersible pump, reserve pump motor is electrically connected with feed back control system by feedback control circuit；Feed back control system also includes standby liquid level relay, stand-by pump catalyst and the second comprehensive protector of motor, and standby liquid level relay, stand-by pump catalyst and the second comprehensive protector of motor are arranged in control chamber；The handle of permutator can also in the manual switching of stand-by pump automatic transmission or stand-by pump, permutator also includes the 4th switch contact, the 5th switch contact and the 6th switch contact, 4th switch contact and the electrical connection of the 5th switch contact under stand-by pump automatic transmission state, the 4th switch contact and the electrical connection of the 6th switch contact under the manual state of stand-by pump；Standby liquid level relay includes duplicate relay the first terminal, duplicate relay the second terminal, duplicate relay the 3rd terminal, duplicate relay the 4th terminal, duplicate relay the 5th terminal, duplicate relay the 6th terminal, duplicate relay the 7th terminal, duplicate relay the 8th terminal；Stand-by pump catalyst includes standby contactor coil and normally opened three contacts, pole of standby motor that can close because standby contactor coil is energized, and the second comprehensive protector of motor includes second comprehensive guarantor's device coil and the second comprehensive guarantor's device normally opened contact that can close because of second comprehensive guarantor's device coil electricity.

9. sump water-level control apparatus according to claim 6, it is characterised in that feedback control circuit includes stand-by pump motor governor circuit, stand-by pump motor automatic control circuit and stand-by pump motor manual circuit；Stand-by pump motor governor circuit includes power supply the first pole, power supply the second pole, power supply the 3rd pole, three pole main switchs, normally opened three contacts, pole of standby motor and reserve pump motor, power supply the first pole passes sequentially through three pole main switchs, first binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected, power supply the second pole passes sequentially through three pole main switchs, second binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected, power supply the 3rd pole passes sequentially through three pole main switchs, 3rd binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected；nullStand-by pump motor automatic control circuit includes power supply the first pole、First fuse、Normally closed stop botton、Duplicate relay the first terminal、Duplicate relay the 3rd terminal、Duplicate relay the 4th terminal、Duplicate relay the 5th terminal、Duplicate relay the 6th terminal、Duplicate relay the 7th terminal、Duplicate relay the 8th terminal、4th switch contact、5th switch contact、High water level electrode head、Middle water level electrode tip、Low water level electrode head、Standby contactor coil、Second combines guarantor's device normally opened contact、Second combines guarantor's device coil、Second fuse and power supply the 3rd pole，Power supply the first pole、First fuse、Normally closed stop botton、Duplicate relay the first terminal sequentially electricity is serially connected，Duplicate relay the 3rd terminal and duplicate relay the first terminal are electrically connected，Duplicate relay the 4th terminal and the 5th switch contact are electrically connected，4th switch contact、Second combines guarantor's device coil、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected，Second combines the electrically in parallel two ends combining guarantor's device coil second after guarantor's device normally opened contact concatenates with standby contactor coil electricity，Duplicate relay the 5th terminal and high water level electrode head are electrically connected，Duplicate relay the 6th terminal and middle water level electrode tip are electrically connected，Duplicate relay the 7th terminal and low water level electrode head are electrically connected，Duplicate relay the 8th terminal、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected；Stand-by pump motor manual circuit includes power supply the first pole, first fuse, normally closed stop botton, 4th switch contact, 6th switch contact, second combines guarantor's device coil, second combines guarantor's device normally opened contact, standby contactor coil, second fuse and power supply the 3rd pole, power supply the first pole, first fuse, normally closed stop botton, 6th switch contact sequentially electricity is serially connected, 4th switch contact, second combines guarantor's device coil, second fuse and power supply the 3rd pole sequentially electricity are serially connected, second combines the electrically in parallel two ends combining guarantor's device coil second after guarantor's device normally opened contact concatenates with standby contactor coil electricity.

10. sump water-level control apparatus according to claim 7, it is characterised in that feedback control circuit includes stand-by pump motor governor circuit, stand-by pump motor automatic control circuit and stand-by pump motor manual circuit；Stand-by pump motor governor circuit includes power supply the first pole, power supply the second pole, power supply the 3rd pole, three pole main switchs, normally opened three contacts, pole of standby motor and reserve pump motor, power supply the first pole passes sequentially through three pole main switchs, first binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected, power supply the second pole passes sequentially through three pole main switchs, second binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected, power supply the 3rd pole passes sequentially through three pole main switchs, 3rd binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected；nullStand-by pump motor automatic control circuit includes power supply the first pole、First fuse、Normally closed stop botton、Duplicate relay the first terminal、Duplicate relay the 3rd terminal、Duplicate relay the 4th terminal、Duplicate relay the 5th terminal、Duplicate relay the 6th terminal、Duplicate relay the 7th terminal、Duplicate relay the 8th terminal、4th switch contact、5th switch contact、High water level electrode head、Middle water level electrode tip、Low water level electrode head、Standby contactor coil、Second combines guarantor's device normally opened contact、Second combines guarantor's device coil、Second fuse and power supply the 3rd pole，Power supply the first pole、First fuse、Normally closed stop botton、Duplicate relay the first terminal sequentially electricity is serially connected，Duplicate relay the 3rd terminal and duplicate relay the first terminal are electrically connected，Duplicate relay the 4th terminal and the 5th switch contact are electrically connected，4th switch contact、Second combines guarantor's device coil、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected，Second combines the electrically in parallel two ends combining guarantor's device coil second after guarantor's device normally opened contact concatenates with standby contactor coil electricity，Duplicate relay the 5th terminal and high water level electrode head are electrically connected，Duplicate relay the 6th terminal and middle water level electrode tip are electrically connected，Duplicate relay the 7th terminal and low water level electrode head are electrically connected，Duplicate relay the 8th terminal、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected；Stand-by pump motor manual circuit includes power supply the first pole, first fuse, normally closed stop botton, 4th switch contact, 6th switch contact, second combines guarantor's device coil, second combines guarantor's device normally opened contact, standby contactor coil, second fuse and power supply the 3rd pole, power supply the first pole, first fuse, normally closed stop botton, 6th switch contact sequentially electricity is serially connected, 4th switch contact, second combines guarantor's device coil, second fuse and power supply the 3rd pole sequentially electricity are serially connected, second combines the electrically in parallel two ends combining guarantor's device coil second after guarantor's device normally opened contact concatenates with standby contactor coil electricity.

11. sump water-level control apparatus according to claim 8, it is characterised in that feedback control circuit includes stand-by pump motor governor circuit, stand-by pump motor automatic control circuit and stand-by pump motor manual circuit；Stand-by pump motor governor circuit includes power supply the first pole, power supply the second pole, power supply the 3rd pole, three pole main switchs, normally opened three contacts, pole of standby motor and reserve pump motor, power supply the first pole passes sequentially through three pole main switchs, first binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected, power supply the second pole passes sequentially through three pole main switchs, second binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected, power supply the 3rd pole passes sequentially through three pole main switchs, 3rd binding post of normally opened three contacts, pole of standby motor and reserve pump motor is electrically connected；nullStand-by pump motor automatic control circuit includes power supply the first pole、First fuse、Normally closed stop botton、Duplicate relay the first terminal、Duplicate relay the 3rd terminal、Duplicate relay the 4th terminal、Duplicate relay the 5th terminal、Duplicate relay the 6th terminal、Duplicate relay the 7th terminal、Duplicate relay the 8th terminal、4th switch contact、5th switch contact、High water level electrode head、Middle water level electrode tip、Low water level electrode head、Standby contactor coil、Second combines guarantor's device normally opened contact、Second combines guarantor's device coil、Second fuse and power supply the 3rd pole，Power supply the first pole、First fuse、Normally closed stop botton、Duplicate relay the first terminal sequentially electricity is serially connected，Duplicate relay the 3rd terminal and duplicate relay the first terminal are electrically connected，Duplicate relay the 4th terminal and the 5th switch contact are electrically connected，4th switch contact、Second combines guarantor's device coil、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected，Second combines the electrically in parallel two ends combining guarantor's device coil second after guarantor's device normally opened contact concatenates with standby contactor coil electricity，Duplicate relay the 5th terminal and high water level electrode head are electrically connected，Duplicate relay the 6th terminal and middle water level electrode tip are electrically connected，Duplicate relay the 7th terminal and low water level electrode head are electrically connected，Duplicate relay the 8th terminal、Second fuse、Power supply the 3rd pole sequentially electricity is serially connected；Stand-by pump motor manual circuit includes power supply the first pole, first fuse, normally closed stop botton, 4th switch contact, 6th switch contact, second combines guarantor's device coil, second combines guarantor's device normally opened contact, standby contactor coil, second fuse and power supply the 3rd pole, power supply the first pole, first fuse, normally closed stop botton, 6th switch contact sequentially electricity is serially connected, 4th switch contact, second combines guarantor's device coil, second fuse and power supply the 3rd pole sequentially electricity are serially connected, second combines the electrically in parallel two ends combining guarantor's device coil second after guarantor's device normally opened contact concatenates with standby contactor coil electricity.

12. sump water-level control apparatus according to claim 9, it is characterised in that be provided with stand-by pump relay indicating light on control chamber, feedback control circuit also includes stand-by pump indication lamp circuit；Stand-by pump catalyst also includes the standby lamp normally opened contact that shows that can close because of the energising of standby contactor coil; stand-by pump indication lamp circuit includes power supply the first pole, the first fuse, normally closed stop botton, standby lamp normally opened contact, stand-by pump relay indicating light, the second fuse and power supply the 3rd pole of showing, power supply the first pole, the first fuse, normally closed stop botton, standby shows that lamp normally opened contact, stand-by pump relay indicating light, the second fuse, power supply the 3rd pole sequentially electricity are serially connected.

13. sump water-level control apparatus according to claim 10, it is characterised in that be provided with stand-by pump relay indicating light on control chamber, feedback control circuit also includes stand-by pump indication lamp circuit；Stand-by pump catalyst also includes the standby lamp normally opened contact that shows that can close because of the energising of standby contactor coil; stand-by pump indication lamp circuit includes power supply the first pole, the first fuse, normally closed stop botton, standby lamp normally opened contact, stand-by pump relay indicating light, the second fuse and power supply the 3rd pole of showing, power supply the first pole, the first fuse, normally closed stop botton, standby shows that lamp normally opened contact, stand-by pump relay indicating light, the second fuse, power supply the 3rd pole sequentially electricity are serially connected.

14. sump water-level control apparatus according to claim 11, it is characterised in that be provided with stand-by pump relay indicating light on control chamber, feedback control circuit also includes stand-by pump indication lamp circuit；Stand-by pump catalyst also includes the standby lamp normally opened contact that shows that can close because of the energising of standby contactor coil; stand-by pump indication lamp circuit includes power supply the first pole, the first fuse, normally closed stop botton, standby lamp normally opened contact, stand-by pump relay indicating light, the second fuse and power supply the 3rd pole of showing, power supply the first pole, the first fuse, normally closed stop botton, standby shows that lamp normally opened contact, stand-by pump relay indicating light, the second fuse, power supply the 3rd pole sequentially electricity are serially connected.