CN214533593U

CN214533593U - Remote drainage control system of centrifugal pump

Info

Publication number: CN214533593U
Application number: CN202120559589.4U
Authority: CN
Inventors: 胡洲; 黄华桃; 朱霆; 李建华
Original assignee: JCHX MINING MANAGEMENT CO Ltd
Current assignee: JCHX MINING MANAGEMENT CO Ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-10-29
Anticipated expiration: 2031-03-18

Abstract

The utility model relates to a remote drainage control system of centrifugal pump, including the soft start cabinet and at least one centrifugal pump drainage device that set up at drainage scene end, the soft start cabinet is inside to be equipped with at least one way centrifugal pump start-stop circuit, the quantity of centrifugal pump drainage device and the quantity of centrifugal pump start-stop circuit are the same and one-to-one; the remote control device is arranged at a remote end; any one of the centrifugal pump drainage devices comprises an electric drainage valve, a centrifugal pump, a water pump motor and a drainage pipeline; the water outlet end of the centrifugal pump is communicated with a drainage pipeline, an electric drainage valve is arranged on the drainage pipeline, and an output shaft of a water pump motor is in transmission connection with the centrifugal pump; the water pump motor is electrically connected with the corresponding centrifugal pump start-stop circuit; and all the electric drain valves, all the water pump motors and all the centrifugal pump start-stop circuits are electrically connected with the remote control device. The utility model discloses can open at remote end pair multistage centrifugal pump drainage and stop control, need not the water pumper and guardianship the operation at the scene, the cost of labor is low.

Description

Remote drainage control system of centrifugal pump

Technical Field

The utility model relates to a well drainage technical field, in particular to remote drainage control system of centrifugal pump.

Background

In the construction process of the mine exploration vertical shaft to the drift, a temporary drainage system is required to be built for preventing water gushing of the tunnel. Usually, a chamber is excavated at a reasonable position of a main roadway to serve as a temporary water sump, the roadway gushes water to flow to a sedimentation tank in front of the water sump through a roadway ditch, the sedimentated water is pumped to the water sump through a submersible pump, and the water in the water sump is discharged to the ground surface through a multistage horizontal centrifugal pump.

Due to the limitation of construction site conditions, part of underground temporary drainage systems of mines usually adopt a single soft start cabinet to control a multistage horizontal centrifugal pump to drain water. When the pump is started, the power required by the pump is minimum under the condition that the flow is zero, so that the drainage gate valve needs to be closed before the pump is started, and the water pump is started after the air of the water pump is exhausted, so that the motor is prevented from being damaged due to overload when the motor is started. After the pump is started and the water pump motor runs normally without abnormal sound and the motor voltage and current are normal, the drainage gate valve is gradually adjusted to the required flow. Before the water pump stops, in order to prevent the water hammer acting force from damaging the water pump, the drainage gate valve is closed firstly, and then the motor is stopped. Therefore, the centrifugal pump needs to be started and stopped according to the operation in the drainage control, a water pump worker needs to monitor and operate a water pump room for 24 hours, the field labor cost is high, and an effective remote control technology does not exist at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a long-range drainage control system of centrifugal pump has solved among the current soft start cabinet control centrifugal pump mode, needs on-the-spot artifical monitoring control and the technical problem that the on-the-spot cost of labor that causes is high.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a remote drainage control system of a centrifugal pump comprises a soft start cabinet and at least one centrifugal pump drainage device, wherein the soft start cabinet is arranged at a drainage site end, at least one path of centrifugal pump starting and stopping circuit is arranged in the soft start cabinet, and the number of the centrifugal pump drainage devices is the same as that of the centrifugal pump starting and stopping circuits and corresponds to that of the centrifugal pump starting and stopping circuits one by one; the remote control device is arranged at a remote end;

in any one of the centrifugal pump drainage devices, the centrifugal pump drainage device comprises an electric drainage valve, a centrifugal pump, a water pump motor and a drainage pipeline; the water outlet end of the centrifugal pump is communicated with the drainage pipeline, the electric drainage valve is arranged on the drainage pipeline, and the output shaft of the water pump motor is in transmission connection with the centrifugal pump; the water pump motor is electrically connected with the corresponding centrifugal pump start-stop circuit;

and all the electric drain valves and all the centrifugal pump start-stop circuits are electrically connected with the remote control device.

The utility model has the advantages that: in any centrifugal pump drainage device, water under a mine can be drained to the ground surface by controlling a centrifugal pump through a water pump motor, starting and stopping control of drainage can be realized through an electric drainage valve, and multi-stage drainage is realized through at least one centrifugal pump drainage device; the soft start cabinet and the centrifugal pump drainage devices are arranged on the site of a drainage end through the centrifugal pump start-stop circuits which are in the soft start cabinet and correspond to the centrifugal pump drainage devices one by one, so that a water pumper can conveniently start and stop the drainage of the multistage centrifugal pump on the site according to actual conditions; all the water pump motors, the electric drain valves and the centrifugal pump start-stop circuits are electrically connected with the remote control device, and the multi-stage centrifugal pump can be started and stopped at a remote end according to required operation;

the utility model discloses a remote drainage control system of centrifugal pump can realize opening at the scene as required and stop the operation and open and stop control to the multistage centrifugal pump drainage on the one hand, and on the other hand can open at remote end to the multistage centrifugal pump drainage and stop control, need not the water pumper and guardianship the operation at the scene, can be by the signal worker of remote end control of working concurrently, and the cost of labor is low, all is suitable for to single-stage centrifugal pump and multistage centrifugal pump's drainage system in the pit.

On the basis of the technical scheme, the utility model discloses there is following improvement in addition:

further: in any of the centrifugal pump drainage arrangements, the centrifugal pump drainage arrangement further comprises an electrically operated vent valve and a check valve; the check valve is arranged on the drainage pipeline and is communicated with the electric drainage valve through the drainage pipeline; the centrifugal pump is provided with an exhaust port, and the electric exhaust valve is arranged at the exhaust port;

all the electric exhaust valves are electrically connected with the remote control device.

The beneficial effects of the further technical scheme are as follows: in any centrifugal pump drainage device, air in a pipeline of a centrifugal pump in the drainage process can be discharged through an electric exhaust valve at an exhaust port of the centrifugal pump, so that the influence on drainage flow and even pipeline breakage are avoided; the electric exhaust valve can be started and stopped on site at a drainage site end, and can also be started and stopped remotely through a remote control device; the check valve is arranged on the drainage pipeline, so that water flow can be automatically cut off when the centrifugal pump stops running suddenly (such as sudden power failure) or the centrifugal pump stops without closing the gate valve, and the centrifugal pump is prevented from being damaged by water hammer impact.

Further: in any one of the centrifugal pump drainage apparatuses, the centrifugal pump drainage apparatus further includes a flow meter provided on the drainage pipeline.

The beneficial effects of the further technical scheme are as follows: in any centrifugal pump drainage device, through the flowmeter, can real-time supervision whole centrifugal pump drainage device's the water discharge flow of delivery end department, be convenient for master the drainage condition in real time.

Further: the remote control device comprises at least one water valve start-stop circuit and at least one air valve start-stop circuit, the number of the water valve start-stop circuits is the same as that of the electric drain valves and corresponds to that of the electric drain valves one by one, and the number of the air valve start-stop circuits is the same as that of the electric drain valves and corresponds to that of the electric drain valves one by one;

in any one water valve start-stop circuit, the water valve start-stop circuit comprises a water valve start switch SB7, a water valve stop switch SB8, a first water valve control relay k4 and a second water valve control relay k 5; the water valve starting switch SB7 is electrically connected with a coil of the first water valve control relay k4, two ends of the water valve starting switch SB7 are also electrically connected with a normally open contact of the first water valve control relay k4, and the normally open contact of the first water valve control relay k4 is also electrically connected with a corresponding forward rotation signal end KM1 of the electric drain valve; the water valve stop switch SB8 is electrically connected to the coil of the second water valve control relay k5, two ends of the water valve stop switch SB8 are also electrically connected to the normally open contact of the second water valve control relay k5, and the normally open contact of the second water valve control relay k5 is also electrically connected to the corresponding reversal signal terminal KM2 of the electric drain valve;

in any one way of the air valve start-stop circuit, the air valve start-stop circuit comprises an air valve start switch SB9, an air valve stop switch SB10, a first air valve control relay k6 and a second air valve control relay k 7; the gas valve starting switch SB9 is electrically connected with a coil of the first gas valve control relay k6, two ends of the gas valve starting switch SB9 are also electrically connected with a normally open contact of the first gas valve control relay k6, and the normally open contact of the first gas valve control relay k6 is also electrically connected with a corresponding forward rotation signal end KM3 of the electric exhaust valve; the pneumatic valve stop switch SB10 with the coil electricity of second pneumatic valve control relay k7 is connected, the both ends of pneumatic valve stop switch SB10 still respectively with the normally open contact electricity of second pneumatic valve control relay k7 is connected, the normally open contact of second pneumatic valve control relay k7 still with correspond the reversal signal end KM4 electricity of electronic discharge valve is connected.

The beneficial effects of the further technical scheme are as follows: the water valve start-stop circuits in the remote control device are the same in number as the electric drain valves and correspond to the electric drain valves one by one, so that the remote start-stop control of the drainage of the multistage centrifugal pump is facilitated; similarly, the number of the air valve start-stop circuits is the same as that of the electric exhaust valves, and the air valve start-stop circuits correspond to the electric exhaust valves one by one, so that the exhaust of the multistage centrifugal pump in the drainage can be controlled remotely, the remote control is really realized, and the monitoring operation of a water pump worker in a site for 24 hours is not needed;

in any one water valve starting and stopping circuit, a water valve starting switch SB7 is electrically connected with a coil of a first water valve control relay k4, a normally open contact of a first water valve control relay k4 is connected in parallel, and then the normally open contact is electrically connected with a forward rotation signal end of an electric drain valve, so that the water valve starting switch can be operated at a remote end to realize the closing of the electric drain valve, and further, the corresponding water pump motor and the centrifugal pump are combined to realize the remote starting control of drainage; similarly, the water valve stop switch SB8 is electrically connected with the coil of the second water valve control relay k5, and the normally open contact of the second water valve control relay k5 is connected in parallel and then electrically connected with the reverse signal end of the electric drain valve, so that the water valve stop switch can be operated at a remote end to realize the disconnection of the electric drain valve, and further, the corresponding water pump motor and the centrifugal pump are combined to realize the remote stop control of the drainage; for any one path of air valve start-stop circuit, the principle of realizing the remote start-stop control of exhaust at a remote end is similar to the principle;

through above-mentioned remote control device, conveniently realize the long-range of multistage centrifugal pump in mine drainage system smoothly and open and stop the control, should open to stop the control and can be acted as one's time by the signal worker of long-range end, effectively reduce the cost of labor.

Further: the remote control device also comprises at least one path of water pump remote start-stop circuit, and the number of the water pump remote start-stop circuits is the same as that of the centrifugal pump start-stop circuits and corresponds to that of the centrifugal pump start-stop circuits one by one;

in any one way of the water pump remote start-stop circuit, the water pump remote start-stop circuit comprises a first water pump starting switch SB14, a first water pump stopping switch SB11 and a water pump control relay ZJ 1; the one end of first water pump starting switch SB14 is passed through the coil of water pump control relay ZJ1 and is connected with the centrifugal pump opens and stops the circuit electricity that corresponds, the other end of first water pump starting switch SB14 with first water pump stop switch SB11 electricity is connected, the both ends of first water pump starting switch SB14 still respectively with the first normally open contact electricity of water pump control relay ZJ1 is connected.

The beneficial effects of the further technical scheme are as follows: the remote control of the water pump motor can be realized by directly operating the water pump remote start-stop circuit on the basis of the remote control of the electric drain valve and the electric exhaust valve in the centrifugal pump drainage device through at least one path of water pump remote start-stop circuits which are in the same number and correspond to the centrifugal pump start-stop circuits one by one in the remote control device;

in any one way of water pump remote start-stop circuit, one end of a first water pump starting switch SB14 is electrically connected with the centrifugal pump start-stop circuit through a coil of a water pump control relay ZJ1, the other end of the first water pump stop switch SB11 is electrically connected, and the two ends of the first water pump start switch SB14 are also electrically connected with the first normally open contact of the water pump control relay ZJ1, which is equivalent to the normally open contact of the water pump control relay ZJ1 connected in parallel on the water pump start loop, the normally open contact of the water pump control relay ZJ1 is connected in series on the water pump stop loop, the first water pump starting switch SB14 can be directly operated at the remote end to control the closing of the normally open contact of the water pump control relay ZJ1, and directly operating the first water pump stop switch SB11 at the remote end to control the opening of the normally open contact of the water pump control relay ZJ1, the remote start-stop control of the centrifugal pump is realized indirectly through a water pump control relay ZJ 1;

through above-mentioned remote control device, further realized that the multistage centrifugal pump stops control in the long-range of mine drainage system, reduced the cost of labor.

Further: in any one way of the centrifugal pump start-stop circuit, the centrifugal pump start-stop circuit comprises a second water pump start switch SB4, a second water pump stop switch SB1 and an internal control relay k 1; one end of the second water pump starting switch SB4 is electrically connected to the corresponding water pump motor through the coil of the internal control relay k1, the other end of the second water pump starting switch SB4 is electrically connected to the second water pump stop switch SB1, and both ends of the second water pump starting switch SB4 are also electrically connected to the corresponding second normally open contacts of the water pump control relay ZJ 1.

The beneficial effects of the further technical scheme are as follows: the centrifugal pump starting and stopping circuit is similar to the water pump remote starting and stopping circuit in structure and principle, the centrifugal pump starting and stopping circuit and the centrifugal pump drainage device are the same in number and correspond to each other one by one, the centrifugal pump starting and stopping circuit is arranged in the soft start cabinet, the existing soft start cabinet is modified, and based on the water pump control relay, the modified control circuit is only connected with the water pump starting circuit in parallel and is connected with the water pump stopping circuit in series, and the original soft start cabinet control circuit is not influenced; through transforming the back, can be directly be connected with the water pump motor electricity through the coil of internal control relay, the auto-lock contact of internal control relay is demolishd, compared with the prior art, through the auto-lock contact of demolising former soft start cabinet, both realized opening at the water pump room and stopped control, can guarantee again to realize smoothly at remote end to the long-range opening of water pump motor and stop control, the water pump room is not arranging the water pumper drainage on duty, by well head signal worker concurrent control, practice thrift the cost of labor, dual control mode universality is higher.

Further: in any of the centrifugal pump water discharge apparatuses, the centrifugal pump water discharge apparatus further includes a temperature sensor provided on the centrifugal pump; the corresponding centrifugal pump start-stop circuit also comprises a temperature control relay KA 3; the temperature sensor is electrically connected with a coil of the corresponding temperature control relay KA3, and the other end of the second water pump starting switch SB4 is electrically connected with the second water pump stopping switch SB1 through a normally closed contact of the temperature control relay KA 3.

The beneficial effects of the further technical scheme are as follows: in any centrifugal pump drainage device, the temperature on the centrifugal pump is detected in real time through a temperature sensor, the temperature sensor is electrically connected with a coil of a temperature control relay in a corresponding centrifugal pump starting and stopping circuit, and a normally closed contact of the temperature control relay is connected in series between the other end of a second water pump starting switch and a second water pump stopping switch, so that when the temperature on the centrifugal pump is too high, on one hand, a water pump motor is disconnected through the second water pump stopping switch on a soft starting cabinet, and on the other hand, the water pump motor is disconnected through a first water pump stopping switch in a remote control device; based on temperature sensor, centrifugal pump open and stop circuit and the long-range circuit that opens and stops of water pump, realize real time monitoring centrifugal pump promptly water pump motor's operational aspect, avoid causing water pump bearing high temperature trouble and then damage water pump and water pump motor because of personnel's negligence, reduce row's fault rate.

Further: in any one of the centrifugal pump water discharge apparatuses, the centrifugal pump water discharge apparatus further includes a liquid level sensor; the corresponding centrifugal pump start-stop circuit also comprises a liquid level control relay SQ and a water shortage protection control sub-circuit; level sensor with correspond level control relay SQ's coil electricity is connected, level control relay SQ's normally open contact and normally closed contact all with correspond the protection control sub-circuit electricity that lacks water is connected, second water pump starting switch SB 4's the other end loops through the protection control sub-circuit that lacks water and temperature control relay KA 3's normally closed contact with second water pump stop switch SB1 electricity is connected.

The beneficial effects of the further technical scheme are as follows: can real-time detection centrifugal pump drainage device position's water level through level sensor, when the water level was crossed lowly, realize the protection of lack of water through liquid level control relay and lack of water protection control sub-circuit, avoid causing the water pump to take out futilely and then damage water pump and water pump motor because of personnel's carelessness, further reduce the fault rate.

Further: any one of the water shortage protection sub-circuits comprises a time relay KT, a water shortage protection control relay KA2, a water shortage intermediate relay KA1, a water shortage protection short-circuit switch QF1 and an electric bell EB;

in any one way of the water-shortage protection control sub-circuit, one end of a coil of the time relay KT is electrically connected with the positive electrode of a power supply through a first normally-open contact of the water-shortage intermediate relay KA1, and the other end of the coil of the time relay KT is electrically connected with the negative electrode of the power supply; one end of a coil of the water-shortage protection control relay KA2 is electrically connected with the positive electrode of the power supply through a first normally closed contact of the time relay KT, the other end of the coil of the water-shortage protection control relay KA2 is electrically connected with the negative electrode of the power supply through a normally closed contact of the liquid level control relay SQ, and the other end of the coil of the water-shortage protection control relay KA2 is electrically connected with the negative electrode of the power supply through a second normally open contact of the intermediate relay KA 1; one end of a coil of the water-deficient intermediate relay KA1 is electrically connected with the positive electrode of the power supply, and the other end of the coil of the water-deficient intermediate relay KA1 is electrically connected with the negative electrode of the power supply through a normally open contact of the liquid level control relay SQ; one end of the electric bell EB is electrically connected with the anode of the power supply through a second normally closed contact of the time relay KT, and the other end of the electric bell EB is electrically connected with the cathode of the power supply through a third normally open contact of the water-deficient intermediate relay KA 1; and two ends of the water shortage protection short-circuit switch QF1 are electrically connected with a normally open contact of the water shortage protection control relay KA 2.

The beneficial effects of the further technical scheme are as follows: for any one way of water shortage protection control sub-circuit, a second water pump stop switch in a corresponding centrifugal pump start-stop circuit on the soft start cabinet is connected in series with a normally open contact KA2 of the water shortage protection control relay through a normally closed contact of the temperature control relay, when a coil of the water shortage protection control relay KA2 is not electrified, the normally open contact of the water shortage protection control relay KA2 is disconnected, and the centrifugal pump stops draining water; therefore, when the water level is normal, the normally closed contact of the corresponding liquid level control relay SQ is closed, the coil of the water shortage protection control relay KA2 is electrified, and the normally open contact of the water shortage protection control relay KA2 is closed to realize self-locking, so that normal drainage is ensured; when the water level is too low and is at the lower limit, the normally closed contact of the liquid level control relay SQ is opened, the normally open contact of the liquid level control relay SQ is closed, and as the normally open contact of the water shortage protection control relay KA2 is closed, the water pump motor cannot be stopped immediately, and the centrifugal pump cannot stop draining water immediately; meanwhile, as the normally open contact of the liquid level control relay SQ is closed, the coil of the water-deficient intermediate relay KA1 is electrified, the second normally open contact of the water-deficient intermediate relay KA1 is closed, the serially connected electric bell rings, and the time relay KT starts to time; when the time in the time relay KT reaches the preset time, the second normally closed contact of the time relay KT is disconnected, the electric bell stops sounding, the first normally closed contact of the time relay KT is also disconnected, the normally open contact of the water shortage protection control relay KA2 is disconnected, and the water pump motor and the centrifugal pump stop operating; when the water level is recovered to be normal again, the normally closed contact of the liquid level control relay is closed, the whole system is reset and is in a state to be started;

when the water shortage protection short-circuit switch is closed, the water shortage protection is not in effect, and normal drainage can be prevented from being influenced when the water shortage protection switch fails;

through the above-mentioned water shortage protection control subcircuit, combine level sensor and liquid level control relay, normal drainage can be guaranteed on the one hand, on the other hand can realize crossing when the water level is low excessively, in time report to the police through the jingle bell and remind relevant personnel to intervene, close the water pump, when relevant personnel appear sleeping or off posts etc. abnormal conditions and in time take intervention measure, can wait the drainage function of automatic disconnection water pump after alarm time reachs the settlement time, realize the water shortage protection, avoid causing the water pump to pump out and then damage water pump and water pump motor because of personnel's negligence, effectively reduce the fault rate.

Further: the remote drainage control system of the centrifugal pump further comprises a first image monitoring device for monitoring the soft start cabinet and a second image monitoring device for monitoring all the drainage devices of the centrifugal pump.

The beneficial effects of the further technical scheme are as follows: because the soft start cabinet is positioned at the drainage site end, the switch running condition on the soft start cabinet and the current and the voltage on the panel of the soft start cabinet in the running process can be detected in real time through the first image monitoring device, so that the drainage condition of the multistage centrifugal pump can be mastered in real time in a related manner; the second image monitoring device for monitoring the centrifugal pump drainage device at the drainage site end can monitor the drainage flow displayed in the flowmeter at the water outlet end of the whole centrifugal pump drainage device, can monitor the running conditions of the centrifugal pump and the water pump motor and can monitor the water level condition; on the basis of realizing remote drainage control, the whole drainage process is monitored in real time in an all-round way.

Drawings

Fig. 1 is a schematic structural diagram of a remote drainage control system of a centrifugal pump according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of any one of the centrifugal pump drainage devices in the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a remote drainage control system of another centrifugal pump according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of any one-way water valve start-stop circuit in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of any one of the air valve start-stop circuits in the embodiment of the present invention;

fig. 6-1 is a schematic structural diagram of a remote start-stop circuit of any water pump in the embodiment of the present invention;

fig. 6-2 is a schematic structural diagram of a 3-way water pump remote start-stop circuit in the embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a start-stop circuit of any centrifugal pump in the embodiment of the present invention;

fig. 8 is a schematic structural diagram of any one way of the water shortage protection control sub-circuit in the embodiment of the present invention;

fig. 9 is the embodiment of the utility model provides an in 3 way centrifugal pump open stop circuit with 3 way water shortage protection control between the sub-circuit connection schematic diagrams.

In the drawings, the components represented by the respective reference numerals are listed below:

1. centrifugal pump drainage device, 2, centrifugal pump start-stop circuit, 3, remote control device, 11, electric drain valve, 12, centrifugal pump, 13, water pump motor, 14, drainage pipe, 15, electric exhaust valve, 16, check valve, 17, temperature sensor, 18, flowmeter, 21, water shortage protection control sub-circuit, 31, water valve start-stop circuit, 32, air valve start-stop circuit, 33, water pump remote start-stop circuit.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The present invention will be described with reference to the accompanying drawings.

In an embodiment, as shown in fig. 1, a remote drainage control system of a centrifugal pump includes a soft start cabinet and at least one centrifugal pump drainage device 1, which are arranged at a drainage site end, wherein at least one path of centrifugal pump start-stop circuit 2 is arranged inside the soft start cabinet, and the number of the centrifugal pump drainage devices 1 is the same as that of the centrifugal pump start-stop circuits 2 and is in one-to-one correspondence with that of the centrifugal pump start-stop circuits 2; the remote control device 3 is arranged at a remote end;

as shown in fig. 2, in any one of the centrifugal pump drainage apparatuses 1, the centrifugal pump drainage apparatus 1 includes an electric drainage valve 11, a centrifugal pump 12, a water pump motor 13, and a drainage pipeline 14; the water outlet end of the centrifugal pump 12 is communicated with the water drainage pipeline 14, the electric water drainage valve 11 is arranged on the water drainage pipeline 14, and the output shaft of the water pump motor 13 is in transmission connection with the centrifugal pump 12; the water pump motor 13 is electrically connected with the corresponding centrifugal pump start-stop circuit 2;

all the electric drain valves 11 and all the centrifugal pump start-stop circuits 2 are electrically connected with the remote control device 3.

In any centrifugal pump drainage device, water under a mine can be drained to the ground surface by controlling a centrifugal pump through a water pump motor, starting and stopping control of drainage can be realized through an electric drainage valve, and multi-stage drainage is realized through at least one centrifugal pump drainage device; the soft start cabinet and the centrifugal pump drainage devices are arranged on the site of a drainage end through the centrifugal pump start-stop circuits which are in the soft start cabinet and correspond to the centrifugal pump drainage devices one by one, so that a water pumper can conveniently start and stop the drainage of the multistage centrifugal pump on the site according to actual conditions; all the water pump motors, the electric drain valves and the centrifugal pump start-stop circuits are electrically connected with the remote control device, and the multi-stage centrifugal pump can be started and stopped at a remote end according to required operation;

the remote drainage control system of the centrifugal pump of the embodiment can realize on the one hand that the multi-stage centrifugal pump drainage is started and stopped to control according to the start and stop operation that needs on the spot, and on the other hand can start and stop the control at the remote end to the multi-stage centrifugal pump drainage, need not the water pumpers and guardians the operation on the spot, can be controlled by the signal worker of remote end concurrently, and the cost of labor is low, all is suitable for the drainage system of single-stage centrifugal pump and multi-stage centrifugal pump in the pit.

Specifically, the number of the centrifugal pump water discharging device and the number of the centrifugal pump start-stop circuits in the embodiment are 3, the centrifugal pump in the centrifugal pump water discharging device is a horizontal centrifugal pump, the model is D85-67X9, the water pump motor is a 250KW motor, and 3-stage centrifugal pump water discharging can be realized. Considering the faults of the centrifugal pumps or sudden water gushing, the three centrifugal pumps are arranged in the water sump, and the maintenance of one centrifugal pump and one water sump is ensured. The remote end is typically a wellhead of the mine, and an operator station is provided for installing the remote control device. And the power supplies of the centrifugal pump drainage devices, the centrifugal pump start-stop circuits and the remote control device are all independent power systems.

In the actual mine drainage process, the installation process of the centrifugal pump and accessories thereof is as follows: after the centrifugal pump base is connected with foundation bolts and leveled, concrete and a ground foundation are poured together, the centrifugal pump body and the water pump motor are fixed on the water pump chassis through the coupler, the coaxiality, the end face gap and the water pump axial string movement gap of the coupler of the water pump motor and the coupler of the centrifugal pump body are all within a specified range, and the water outlet end of the centrifugal pump is connected with an electric drain valve.

The drainage principle of the centrifugal pump drainage device is as follows: the water in the tunnel flows to a sedimentation tank in front of the water sump through a water ditch, the water is pumped to the water sump by the submersible pump after sedimentation, the water inlet of the centrifugal pump is lower than the water level of the water sump, and the water level difference is utilized to automatically supply water to the centrifugal pump.

Preferably, as shown in fig. 2, in any one of the centrifugal pump drainage apparatuses 1, the centrifugal pump drainage apparatus 1 further includes an electric air release valve 15 and a check valve 16; the check valve 16 is arranged on the drainage pipeline 14 and is communicated with the electric drainage valve 11 through the drainage pipeline 14; an air outlet is arranged on the centrifugal pump 12, and the electric exhaust valve 15 is arranged at the air outlet;

all the electric exhaust valves 15 are electrically connected with the remote control device 3.

In any centrifugal pump drainage device, air in a pipeline of a centrifugal pump in the drainage process can be discharged through an electric exhaust valve at an exhaust port of the centrifugal pump, so that the influence on drainage flow and even pipeline breakage are avoided; the electric exhaust valve can be started and stopped on site at a drainage site end, and can also be started and stopped remotely through a remote control device; the check valve is arranged on the drainage pipeline, so that water flow can be automatically cut off when the centrifugal pump stops running suddenly (such as sudden power failure) or the centrifugal pump stops without closing the gate valve, and the centrifugal pump is prevented from being damaged by water hammer impact.

Specifically, according to the combined field situation of the lift and the flow of the centrifugal water pump, an electric drain valve and a water pump drain valve at the water outlet end of the centrifugal pump are replaced by electric gate valves, the model of the electric drain valve at the water outlet end of the centrifugal pump is selected to be Z941T, the nominal pressure is determined to be PN6.4mpa, and the nominal pressure is passed through DN 100; the electric exhaust valve of the exhaust port of the centrifugal pump is a common electric ball valve with the model number of CWX-15N, and is nominally led to the channel DN 15.

Preferably, as shown in fig. 2, in any one of the centrifugal pump drainage apparatuses 1, the centrifugal pump drainage apparatus 1 further includes a flow meter 18, and the flow meter 18 is provided on the drainage pipeline 14.

In any centrifugal pump drainage device, through the flowmeter, can real-time supervision whole centrifugal pump drainage device's the water discharge flow of delivery end department, be convenient for master the drainage condition in real time.

Specifically, the flowmeter in this embodiment is the flowmeter that has the display, can directly look over the reading on the display and know drainage flow, chooses suitable flowmeter for use according to actual field conditions, and the flowmeter can realize independent power supply through inserting a 220V supply socket, and is independent each other with the power supply of centrifugal pump drainage device.

Preferably, as shown in fig. 3, the remote control device 3 includes at least one water valve start-stop circuit 31 and at least one air valve start-stop circuit 32, the number of the water valve start-stop circuits 31 is the same as and one-to-one corresponding to the number of the electric water discharge valves 11, and the number of the air valve start-stop circuits 32 is the same as and one-to-one corresponding to the number of the electric air discharge valves 15;

as shown in fig. 4, in any one of the water valve start-stop circuits 31, the water valve start-stop circuit 31 includes a water valve start switch SB7, a water valve stop switch SB8, a first water valve control relay k4, and a second water valve control relay k 5; the water valve starting switch SB7 is electrically connected with the coil of the first water valve control relay k4, two ends of the water valve starting switch SB7 are also electrically connected with the normally open contact of the first water valve control relay k4, and the normally open contact of the first water valve control relay k4 is also electrically connected with the corresponding forward rotation signal end KM1 of the electric drain valve 11; the water valve stop switch SB8 is electrically connected to the coil of the second water valve control relay k5, two ends of the water valve stop switch SB8 are also electrically connected to the normally open contact of the second water valve control relay k5, and the normally open contact of the second water valve control relay k5 is also electrically connected to the corresponding inversion signal terminal KM2 of the electric drain valve 11;

as shown in fig. 5, in any one of the gas valve start-stop circuits 32, the gas valve start-stop circuit 32 includes a gas valve start switch SB9, a gas valve stop switch SB10, a first gas valve control relay k6 and a second gas valve control relay k 7; the gas valve starting switch SB9 is electrically connected with a coil of the first gas valve control relay k6, two ends of the gas valve starting switch SB9 are also electrically connected with a normally open contact of the first gas valve control relay k6, and the normally open contact of the first gas valve control relay k6 is also electrically connected with a corresponding forward rotation signal end KM3 of the electric exhaust valve 15; the air valve stop switch SB10 is electrically connected with the coil of the second air valve control relay k7, the two ends of the air valve stop switch SB10 are also electrically connected with the normally open contact of the second air valve control relay k7, and the normally open contact of the second air valve control relay k7 is also electrically connected with the corresponding reversal signal end KM4 of the electric exhaust valve 15.

The water valve start-stop circuits in the remote control device are the same in number as the electric drain valves and correspond to the electric drain valves one by one, so that the remote start-stop control of the drainage of the multistage centrifugal pump is facilitated; similarly, the number of the air valve start-stop circuits is the same as that of the electric exhaust valves, and the air valve start-stop circuits correspond to the electric exhaust valves one by one, so that the exhaust of the multistage centrifugal pump in the drainage can be controlled remotely, the remote control is really realized, and the monitoring operation of a water pump worker in a site for 24 hours is not needed;

Specifically, in this embodiment, each water valve start switch, each water valve stop switch, each air valve start switch, and each air valve stop switch may be disposed on the console at the remote end, and the signal worker at the remote end directly controls the switch of each electric valve in combination with each corresponding relay.

Preferably, as shown in fig. 3, the remote control device 3 further includes at least one path of water pump remote start-stop circuit 33, and the number of the water pump remote start-stop circuits 33 is the same as that of the centrifugal pump start-stop circuits 2 and corresponds to one another;

as shown in fig. 6-1, in any one of the water pump remote start-stop circuits 33, the water pump remote start-stop circuit 33 includes a first water pump start switch SB14, a first water pump stop switch SB11, and a water pump control relay ZJ 1; the one end of first water pump starting switch SB14 is passed through the coil of water pump control relay ZJ1 and is connected with the centrifugal pump opens and stops circuit 2 electricity that corresponds, the other end of first water pump starting switch SB14 with first water pump stop switch SB11 electricity is connected, the both ends of first water pump starting switch SB14 still respectively with the first normally open contact electricity of water pump control relay ZJ1 is connected.

The remote control of the water pump motor can be realized by directly operating the water pump remote start-stop circuit on the basis of the remote control of the electric drain valve and the electric exhaust valve in the centrifugal pump drainage device through at least one path of water pump remote start-stop circuits which are in the same number and correspond to the centrifugal pump start-stop circuits one by one in the remote control device;

Specifically, since the drainage system of the centrifugal pump is a 3-stage centrifugal pump in this embodiment, fig. 6-1 shows one path of the water pump remote start-stop circuit, the number of the water pump remote start-stop circuits in the whole system is also 3, and a circuit diagram of the 3 paths of the water pump remote start-stop circuits is shown in fig. 6-2. The control voltage of the 3-way water pump remote start-stop circuit is AC127V and is provided by a running light transformer. The first water pump starting switch (comprising SB14, SB15 and SB16) and the first water pump stopping switch (comprising SB11, SB12 and SB13) are all arranged on the operating platform at the remote end to respectively control the switch and the closing of the corresponding water pump control relay (comprising ZJ1, ZJ2 and ZJ3), and the second normally open contact of the water pump control relay (comprising ZJ1, ZJ2 and ZJ3) is connected with the water pump motor through the internal control relay (comprising k1, k2 and k3), so that the switch and the closing of the water pump control relay (comprising ZJ1, ZJ2 and ZJ3) are indirectly utilized to control the starting and the stopping of the water pump motor.

Preferably, as shown in fig. 7, in any way of the centrifugal pump start-stop circuit 2, the centrifugal pump start-stop circuit 2 comprises a second water pump start switch SB4, a second water pump stop switch SB1 and an internal control relay k 1; one end of the second water pump starting switch SB4 is electrically connected to the corresponding water pump motor 13 through the coil of the internal control relay k1, the other end of the second water pump starting switch SB4 is electrically connected to the second water pump stop switch SB1, and both ends of the second water pump starting switch SB4 are also electrically connected to the corresponding second normally open contacts of the water pump control relay ZJ 1.

The centrifugal pump starting and stopping circuit is similar to the water pump remote starting and stopping circuit in structure and principle, the centrifugal pump starting and stopping circuit and the centrifugal pump drainage device are the same in number and correspond to each other one by one, the centrifugal pump starting and stopping circuit is arranged in the soft start cabinet, the existing soft start cabinet is modified, and based on the water pump control relay, the modified control circuit is only connected with the water pump starting circuit in parallel and is connected with the water pump stopping circuit in series, and the original soft start cabinet control circuit is not influenced; through transforming the back, can be directly be connected with the water pump motor electricity through the coil of internal control relay, the auto-lock contact of internal control relay is demolishd, compared with the prior art, through the auto-lock contact of demolising former soft start cabinet, both realized opening at the water pump room and stopped control, can guarantee again to realize smoothly at remote end to the long-range opening of water pump motor and stop control, the water pump room is not arranging the water pumper drainage on duty, by well head signal worker concurrent control, practice thrift the cost of labor, dual control mode universality is higher.

Preferably, as shown in fig. 2 and 7, in any one of the centrifugal pump discharge apparatuses 1, the centrifugal pump discharge apparatus 1 further includes a temperature sensor 17 provided on the centrifugal pump 12; the corresponding centrifugal pump start-stop circuit 2 further comprises a temperature control relay KA 3; the temperature sensor 17 is electrically connected to a coil of the corresponding temperature control relay KA3, and the other end of the second water pump start switch SB4 is electrically connected to the second water pump stop switch SB1 through a normally closed contact of the temperature control relay KA 3.

In any centrifugal pump drainage device, the temperature on the centrifugal pump is detected in real time through a temperature sensor, the temperature sensor is electrically connected with a coil of a temperature control relay in a corresponding centrifugal pump starting and stopping circuit, and a normally closed contact of the temperature control relay is connected in series between the other end of a second water pump starting switch and a second water pump stopping switch, so that when the temperature on the centrifugal pump is too high, on one hand, a water pump motor is disconnected through the second water pump stopping switch on a soft starting cabinet, and on the other hand, the water pump motor is disconnected through a first water pump stopping switch in a remote control device; based on temperature sensor, centrifugal pump open and stop circuit and the long-range circuit that opens and stops of water pump, realize real time monitoring centrifugal pump promptly water pump motor's operational aspect, avoid causing water pump bearing high temperature trouble and then damage water pump and water pump motor because of personnel's negligence, reduce row's fault rate.

Specifically, the temperature sensors are specifically installed on bearings of the centrifugal pump, and the proper number is selected according to actual conditions, the type is DS18B20, and the measured temperature is-55 to +125 ℃. Processing a metal sleeve for fixing the temperature sensor on site, bonding the metal sleeve to a position needing temperature detection by using metal glue, and installing a probe of the temperature sensor in the metal sleeve for waterproof treatment; the detection wire is connected to the temperature control relay after being protected by penetrating a pipe, for any path of centrifugal pump start-stop circuit, a stop loop of the centrifugal pump start-stop circuit in the soft start cabinet is disconnected and is connected in series to a normally closed contact of the temperature control relay KA3 of the DS18B20 temperature sensor, when the temperature of a bearing of the corresponding centrifugal pump is higher than 85 ℃, the normally closed contact of the temperature control relay KA3 is disconnected, the automatic stop is realized, and the motor and the water pump are prevented from being damaged due to the fault of the bearing. The temperature control principle in the other two-way centrifugal pump drainage device and the centrifugal pump start-stop circuit is similar to the temperature control principle. The coil of the temperature control relay in this embodiment is not shown in the drawing.

Preferably, in any one of the centrifugal pump drainage apparatuses 1, the centrifugal pump drainage apparatus 1 further includes a liquid level sensor (not shown in the drawings); as shown in fig. 7, the corresponding centrifugal pump start-stop circuit 2 further includes a liquid level control relay SQ and a water shortage protection control sub-circuit 21; level sensor with correspond level control relay SQ's coil electricity is connected, level control relay SQ's normally open contact and normally closed contact all with corresponding lack of water protection control sub-circuit 21 electricity is connected, second water pump starting switch SB 4's the other end loops through lack of water protection control sub-circuit 21 and temperature control relay KA 3's normally closed contact with second water pump stop switch SB1 electricity is connected.

Can real-time detection centrifugal pump drainage device position's water level through level sensor, when the water level was crossed lowly, realize the protection of lack of water through liquid level control relay and lack of water protection control sub-circuit, avoid causing the water pump to take out futilely and then damage water pump and water pump motor because of personnel's carelessness, further reduce the fault rate. The liquid level sensor is a floating ball liquid level sensor, and the type can be selected according to actual conditions.

Preferably, as shown in fig. 8 and 9, each of the water shortage protection sub-circuits 21 includes a time relay KT, a water shortage protection control relay KA2, a water shortage intermediate relay KA1, a water shortage protection short-circuit switch QF1, and an electric bell EB;

in any one of the water-shortage protection control sub-circuits 21, one end of a coil of the time relay KT is electrically connected with a positive electrode of a power supply through a first normally-open contact of the water-shortage intermediate relay KA1, and the other end of the coil of the time relay KT is electrically connected with a negative electrode of the power supply; one end of a coil of the water-shortage protection control relay KA2 is electrically connected with the positive electrode of the power supply through a first normally closed contact of the time relay KT, the other end of the coil of the water-shortage protection control relay KA2 is electrically connected with the negative electrode of the power supply through a normally closed contact of the liquid level control relay SQ, and the other end of the coil of the water-shortage protection control relay KA2 is electrically connected with the negative electrode of the power supply through a second normally open contact of the intermediate relay KA 1; one end of a coil of the water-deficient intermediate relay KA1 is electrically connected with the positive electrode of the power supply, and the other end of the coil of the water-deficient intermediate relay KA1 is electrically connected with the negative electrode of the power supply through a normally open contact of the liquid level control relay SQ; one end of the electric bell EB is electrically connected with the anode of the power supply through a second normally closed contact of the time relay KT, and the other end of the electric bell EB is electrically connected with the cathode of the power supply through a third normally open contact of the water-deficient intermediate relay KA 1; and two ends of the water shortage protection short-circuit switch QF1 are electrically connected with a normally open contact of the water shortage protection control relay KA 2.

Specifically, fig. 8 shows a connection schematic diagram of a part of elements of one of the water shortage protection control sub-circuits, and since the present embodiment is a 3-way centrifugal pump start-stop circuit, fig. 9 shows a connection schematic diagram of normally open contacts of the water shortage protection short-circuit switches (including QF1, QF2 and QF3) and the water shortage protection control relays (including KA2, KA6 and KA7) in the water shortage protection control sub-circuit and the other two water shortage protection control sub-circuits.

In the first centrifugal pump start-stop circuit shown in fig. 9, the connection wire of the corresponding second water pump stop switch SB1 on the soft start cabinet is connected in series to the normally open contact KA2 of the water shortage protection control relay through the normally closed contact KA3 of the temperature control relay, when the coil of the water shortage protection control relay KA2 is not energized, the normally open contact of the water shortage protection control relay KA2 is opened, and the centrifugal pump stops draining water; therefore, when the water level is normal, the normally closed contact of the corresponding liquid level control relay SQ in the figure 8 is closed, the coil of the water shortage protection control relay KA2 is electrified, and the normally open contact of the water shortage protection control relay KA2 in the figure 9 is closed to realize self-locking, so that normal drainage is ensured; when the water level is too low and is at the lower limit, the normally closed contact of the liquid level control relay SQ is opened, the normally open contact of the liquid level control relay SQ is closed, and as the normally open contact of the water shortage protection control relay KA2 is closed, the water pump motor cannot be stopped immediately, and the centrifugal pump cannot stop draining water immediately; meanwhile, as the normally open contact of the liquid level control relay SQ is closed, the coil of the water-deficient intermediate relay KA1 is electrified, the second normally open contact of the water-deficient intermediate relay KA1 is closed, the serially connected electric bell rings, and the time relay KT starts to time; when the time in the time relay KT reaches the preset time, the second normally closed contact of the time relay KT is disconnected, the electric bell stops sounding, the first normally closed contact of the time relay KT is also disconnected, the normally open contact of the water shortage protection control relay KA2 is disconnected, and the water pump motor and the centrifugal pump stop operating; when the water level is recovered to be normal again, the normally closed contact of the liquid level control relay SQ is closed, the whole system is reset, and the system is in a state to be started;

the corresponding short-circuit protection switch QF1 is connected in parallel to the normally open contact of the short-circuit protection control relay KA2, when the short-circuit protection switch QF1 is closed, the short-circuit protection is not effective, and normal drainage can be prevented from being influenced when the short-circuit protection switch is in fault.

Specifically, the first centrifugal pump start-stop circuit shown in fig. 9 of this embodiment is compared with the original soft start cabinet, the stop button wiring end of the original soft start cabinet is detached, the normally open contact (closed when the water level is at the normal position) of the detached line series water shortage protection KA2 is connected in series with the normally closed contact of the temperature control relay KA3 corresponding to the DS18B20 temperature sensor, and then the corresponding start button SB4 is connected, the start button SB4 is connected in parallel with the normally open contact of the water pump control relay ZJ1, the self-locking normally open contact of the internal control relay k1 of the original soft start cabinet is detached, and finally the coil of the internal control relay k1 is connected, so that the remote start-stop of the water pump can be controlled in a signal room through the control water pump control relay ZJ 1. The principle of the start-stop circuit of the other two paths of centrifugal pumps in the figure 9 is the same as the above, and the description is omitted here.

Preferably, the remote drainage control system of the centrifugal pump further comprises a first image monitoring device for monitoring the soft start cabinet and a second image monitoring device for monitoring all the centrifugal pump drainage devices 1.

Because the soft start cabinet is positioned at the drainage site end, the switch running condition on the soft start cabinet and the current and the voltage on the panel of the soft start cabinet in the running process can be detected in real time through the first image monitoring device, so that the drainage condition of the multistage centrifugal pump can be mastered in real time in a related manner; the second image monitoring device for monitoring the centrifugal pump drainage device at the drainage site end can monitor the drainage flow displayed in the flowmeter at the water outlet end of the whole centrifugal pump drainage device, can monitor the running conditions of the centrifugal pump and the water pump motor and can monitor the water level condition; on the basis of realizing remote drainage control, the whole drainage process is monitored in real time in an all-round way.

Specifically, the first image monitoring device may be a device including two sets of cameras, a video recorder, and a display, where the cameras, the video recorder, and the display in each set are interconnected in data communication. The first group of cameras are arranged in front of a panel of the soft start cabinet, the corresponding video recorders and the corresponding display are arranged on an operation table at a remote end and used for monitoring the running conditions of voltage and current, the change of the current can be observed in the switching-off process of the water pump, the running current of the motor is controlled through the opening degree of a gate valve at a water outlet of the water pump, when a signaler finds that the voltage and the current of the motor fluctuate and other abnormal conditions, the signaler stops the machine immediately and informs maintainers of processing the motor, and serious faults are avoided; the other group of cameras are installed at a proper position of the water pump room, and the corresponding video recorder and the corresponding display are also installed on an operation table at a remote end and are used for observing the condition of the whole pump room (including the starting operation condition of the centrifugal pump); the second image monitoring device can also be a device comprising a group of cameras, video recorders and displays, wherein the cameras are arranged in a water sump where the centrifugal pump drainage device is located, and the corresponding video recorders and displays are also arranged on an operation table at a remote end and used for monitoring the water level condition of the water sump; and then realize the real-time supervision of whole remote drainage control system.

It should be noted that, in the embodiment, each switch and each relay can select a suitable model according to an actual situation, and specific models are not listed here; each relay comprises a coil and at least one group of normally open contacts and normally closed contacts, wherein the normally open contacts of some relays which are not particularly described are in an open state under the default condition, and the normally closed contacts which are not particularly described are in a closed state under the default condition; just the utility model discloses only through the improvement of structure, combine the action principle of each switch and each relay to realize long-range opening and stop control, do not relate to computer program's improvement.

Specifically, the whole remote drainage control system needs to be debugged before being used, whether a control circuit is damaged or not and whether the control circuit is short-circuited are checked, and the insulation of the control circuit is checked by using a universal meter or a megger, so that the test is carried out when the insulation is more than 0.5 megaohm. Before testing, the main power supply of the soft start cabinet is firstly disconnected, the corresponding power supply is firstly electrified, and after the power supply is electrified, the electric drain valve and the electric exhaust valve are independently controlled by a wellhead signal worker to check whether the action is sensitive and reliable. Secondly, the liquid level control relay is operated by hand to simulate the water level action, and whether the actions of the bell, the time relay and the water-shortage intermediate relay meet the circuit control requirement or not is observed. Then, a smaller action temperature is given to the temperature control relay DS18B20, the action condition of the temperature control relay is observed when the heating temperature sensor reaches the set temperature, and the action temperature of the temperature control relay is adjusted to 85 ℃ after the action is sensitive and reliable. And after all the water is normal, the external system is put into the system, the water pump motor and the centrifugal pump are normally started, the water discharge flow is monitored at the water outlet end of the whole system, the parameters of the flowmeter are adjusted, and the measured value is ensured to be consistent with the actual value. When the water in the water sump is pumped to the lower limit, the water shortage protection action condition is observed. And after normal debugging, putting the test into a trial, and periodically checking and maintaining.

The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The remote drainage control system of the centrifugal pump is characterized by comprising a soft start cabinet and at least one centrifugal pump drainage device (1), wherein the soft start cabinet is arranged at the end of a drainage site, at least one path of centrifugal pump start-stop circuit (2) is arranged in the soft start cabinet, and the number of the centrifugal pump drainage devices (1) is the same as that of the centrifugal pump start-stop circuits (2) and corresponds to that of the centrifugal pump start-stop circuits (2); the remote control device (3) is arranged at a remote end;

in any one of the centrifugal pump drainage devices (1), the centrifugal pump drainage device (1) comprises an electric drainage valve (11), a centrifugal pump (12), a water pump motor (13) and a drainage pipeline (14); the water outlet end of the centrifugal pump (12) is communicated with the water discharge pipeline (14), the electric water discharge valve (11) is arranged on the water discharge pipeline (14), and the output shaft of the water pump motor (13) is in transmission connection with the centrifugal pump (12); the water pump motor (13) is electrically connected with the corresponding centrifugal pump start-stop circuit (2);

and all the electric drain valves (11) and all the centrifugal pump start-stop circuits (2) are electrically connected with the remote control device (3).

2. A remote drainage control system of a centrifugal pump according to claim 1, wherein in any one of the centrifugal pump drainage devices (1), the centrifugal pump drainage device (1) further comprises an electric exhaust valve (15) and a check valve (16); the check valve (16) is arranged on the drainage pipeline (14) and is communicated with the electric drainage valve (11) through the drainage pipeline (14); an air outlet is arranged on the centrifugal pump (12), and the electric exhaust valve (15) is arranged at the air outlet;

all the electric exhaust valves (15) are electrically connected with the remote control device (3).

3. A remote drainage control system of a centrifugal pump according to claim 2, wherein in any one of the centrifugal pump drainage apparatuses (1), the centrifugal pump drainage apparatus (1) further comprises a flow meter (18), the flow meter (18) being provided on the drainage pipe (14).

4. The remote drainage control system of the centrifugal pump according to claim 2, wherein the remote control device (3) comprises at least one water valve start-stop circuit (31) and at least one air valve start-stop circuit (32), the number of the water valve start-stop circuits (31) is the same as that of the electric drainage valves (11) and corresponds to one another, and the number of the air valve start-stop circuits (32) is the same as that of the electric drainage valves (15) and corresponds to one another;

in any one water valve start-stop circuit (31), the water valve start-stop circuit (31) comprises a water valve start switch SB7, a water valve stop switch SB8, a first water valve control relay k4 and a second water valve control relay k 5; the water valve starting switch SB7 is electrically connected with a coil of the first water valve control relay k4, two ends of the water valve starting switch SB7 are also electrically connected with a normally open contact of the first water valve control relay k4, and the normally open contact of the first water valve control relay k4 is also electrically connected with a corresponding forward rotation signal end KM1 of the electric drain valve (11); the water valve stop switch SB8 is electrically connected with a coil of the second water valve control relay k5, two ends of the water valve stop switch SB8 are also electrically connected with a normally open contact of the second water valve control relay k5, and the normally open contact of the second water valve control relay k5 is also electrically connected with a corresponding reversal signal end KM2 of the electric drain valve (11);

in any one of the gas valve start-stop circuits (32), the gas valve start-stop circuit (32) comprises a gas valve start switch SB9, a gas valve stop switch SB10, a first gas valve control relay k6 and a second gas valve control relay k 7; the gas valve starting switch SB9 is electrically connected with a coil of the first gas valve control relay k6, two ends of the gas valve starting switch SB9 are also electrically connected with a normally open contact of the first gas valve control relay k6, and the normally open contact of the first gas valve control relay k6 is also electrically connected with a corresponding forward rotation signal end KM3 of the electric exhaust valve (15); the air valve stop switch SB10 is electrically connected with the coil of the second air valve control relay k7, the two ends of the air valve stop switch SB10 are also electrically connected with the normally open contact of the second air valve control relay k7, and the normally open contact of the second air valve control relay k7 is also electrically connected with the corresponding reversal signal end KM4 of the electric exhaust valve (15).

5. The remote drainage control system of the centrifugal pump according to claim 4, wherein the remote control device (3) further comprises at least one path of water pump remote start-stop circuits (33), and the number of the water pump remote start-stop circuits (33) is the same as that of the centrifugal pump start-stop circuits (2) and corresponds to that of the centrifugal pump start-stop circuits (2);

in any one way of the water pump remote start-stop circuit (33), the water pump remote start-stop circuit (33) comprises a first water pump starting switch SB14, a first water pump stopping switch SB11 and a water pump control relay ZJ 1; the one end of first water pump starting switch SB14 is passed through the coil of water pump control relay ZJ1 and is connected with the centrifugal pump start-stop circuit (2) electricity that corresponds, the other end of first water pump starting switch SB14 with first water pump stop switch SB11 electricity is connected, the both ends of first water pump starting switch SB14 still respectively with the first normally open contact electricity of water pump control relay ZJ1 is connected.

6. The remote drain control system of a centrifugal pump according to claim 5, wherein in any one of the centrifugal pump start-stop circuits (2), the centrifugal pump start-stop circuit (2) comprises a second water pump start switch SB4, a second water pump stop switch SB1 and an internal control relay k 1; one end of the second water pump starting switch SB4 is electrically connected with the corresponding water pump motor (13) through the coil of the internal control relay k1, the other end of the second water pump starting switch SB4 is electrically connected with the second water pump stop switch SB1, and both ends of the second water pump starting switch SB4 are also electrically connected with the corresponding second normally open contacts of the water pump control relay ZJ 1.

7. A remote drain control system of a centrifugal pump according to claim 6, characterized in that in any one of said centrifugal pump drains (1), said centrifugal pump drain (1) further comprises a temperature sensor (17) provided on said centrifugal pump (12); the corresponding centrifugal pump start-stop circuit (2) also comprises a temperature control relay KA 3; the temperature sensor (17) is electrically connected with a coil of the corresponding temperature control relay KA3, and the other end of the second water pump starting switch SB4 is electrically connected with the second water pump stopping switch SB1 through a normally closed contact of the temperature control relay KA 3.

8. A remote drainage control system of a centrifugal pump according to claim 7, wherein in any one of the centrifugal pump drainage apparatuses (1), the centrifugal pump drainage apparatus (1) further comprises a liquid level sensor; the corresponding centrifugal pump start-stop circuit (2) also comprises a liquid level control relay SQ and a water shortage protection control sub-circuit (21); level sensor with correspond level control relay SQ's coil electricity is connected, level control relay SQ's normally open contact and normally closed contact all with corresponding lack of water protection control sub-circuit (21) electricity is connected, second water pump starting switch SB 4's the other end loops through lack of water protection control sub-circuit (21) and temperature control relay KA 3's normally closed contact with second water pump stop switch SB1 electricity is connected.

9. The remote discharge control system of a centrifugal pump according to claim 8, wherein any one of the water shortage protection control sub-circuits (21) comprises a time relay KT, a water shortage protection control relay KA2, a water shortage intermediate relay KA1, a water shortage protection short-circuit switch QF1 and an electric bell EB;

in any one way of the water-shortage protection control sub-circuit (21), one end of a coil of the time relay KT is electrically connected with the positive electrode of a power supply through a first normally-open contact of the water-shortage intermediate relay KA1, and the other end of the coil of the time relay KT is electrically connected with the negative electrode of the power supply; one end of a coil of the water-shortage protection control relay KA2 is electrically connected with the positive electrode of the power supply through a first normally closed contact of the time relay KT, the other end of the coil of the water-shortage protection control relay KA2 is electrically connected with the negative electrode of the power supply through a normally closed contact of the liquid level control relay SQ, and the other end of the coil of the water-shortage protection control relay KA2 is electrically connected with the negative electrode of the power supply through a second normally open contact of the intermediate relay KA 1; one end of a coil of the water-deficient intermediate relay KA1 is electrically connected with the positive electrode of the power supply, and the other end of the coil of the water-deficient intermediate relay KA1 is electrically connected with the negative electrode of the power supply through a normally open contact of the liquid level control relay SQ; one end of the electric bell EB is electrically connected with the anode of the power supply through a second normally closed contact of the time relay KT, and the other end of the electric bell EB is electrically connected with the cathode of the power supply through a third normally open contact of the water-deficient intermediate relay KA 1; and two ends of the water shortage protection short-circuit switch QF1 are electrically connected with a normally open contact of the water shortage protection control relay KA 2.

10. A remote drainage control system of a centrifugal pump according to any one of claims 1 to 9, further comprising a first image monitoring device for monitoring the soft start cabinet and a second image monitoring device for monitoring all the centrifugal pump drainage devices (1).