Small sewage pump integrated control system

Abstract

The utility model provides a small sewage pump integrated control system, which is characterized by comprising a circuit breaker, an alternating current contactor, a thermal relay, a fuse, an intermediate relay, a water pump intelligent controller, a water pump protector and a floating ball, the technical scheme provided by the utility model has the advantages that the water pump can be protected against short circuit, overload, overheating and water leakage, and on-site manual and automatic liquid level control, state indication and two-pump alternation can be realized; components and wiring of the control cabinet are simplified, and the cost is saved; by periodically and alternately starting the water pump, the service life of system equipment is prolonged, and the energy-saving, safe and practical effects are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sewage pump control technical field especially, it relates to a small sewage pump integrated control system. BACKGROUND

[0002] At present, the small sewage pump control method can satisfy most small sewage pump control demand, but also has some shortcomings:

[0003] (a) poor compatibility: for different starting mode small sewage pump, due to the water pump control main circuit wiring is different, needs different small sewage pump control method to control, poor compatibility;

[0004] (b) high cost: due to the function is much, process is complex, causes the cost to be very high. SUMMARY

[0005] The utility model discloses a small sewage pump integrated control system, completes the control to small sewage pump.

[0006] In order to realize above-mentioned purpose, the technical scheme of the utility model is:

[0007] A small sewage pump integrated control system, characterized by including three phase five line power supply, circuit breaker, AC contactor, thermal relay, water pump, fuse, water pump intelligent controller and water pump protector;

[0008] Two groups of circuit breaker, AC contactor, thermal relay and water pump are connected in series in turn and are connected to three phase five line power supply three phase lines, the outgoing line end of circuit breaker is connected with the main contact incoming line end of AC contactor, the main contact outgoing line end of AC contactor is connected with the incoming line end of thermal relay, and the outgoing line end of thermal relay is connected with water pump;

[0009] The water pump intelligent controller includes controller power supply, water pump fault signal acquisition end, warning water level signal acquisition end, pump starting water level signal acquisition end and water pump operation control signal acquisition end, two water pump fault signal acquisition ends are respectively connected with the normally open contact outgoing line end of two intermediate relays, the warning water level signal acquisition end and pump starting water level signal acquisition end are respectively connected with the normally open contact outgoing line end of two floats, two water pump operation control signal acquisition ends are respectively connected with the control coil output end of two AC contactors, the control coil input end of two groups of AC contactors is respectively connected with the third outgoing line end of two circuit breakers, and the signal acquisition common end is respectively connected with the normally open contact incoming line end of two intermediate relays and the normally open contact incoming line end of two floats.

[0010] The water pump protector comprises a protector power supply, a water pump leakage signal acquisition end, a water pump overheating signal acquisition end, a water pump overload signal acquisition end, a water pump fault output signal incoming end and a water pump fault output signal outgoing end, two water pump leakage signal acquisition ends, two water pump overheating signal acquisition ends, two water pump overload signal acquisition ends, two water pump fault output signal incoming ends and two water pump fault output signal outgoing ends are arranged, two wiring ends of the protector power supply are connected with a first phase line and a neutral line of a three-phase five-wire power supply, two water pump leakage signal acquisition ends are connected with common open contact outgoing ends of two water pump leakage signal sensors, two water pump overheating signal acquisition ends are connected with common open contact outgoing ends of two overheating signal sensors, two water pump overload signal acquisition ends are connected with common open contact incoming ends of two thermal relays, two water pump fault output signal outgoing ends are connected with control coil incoming ends of two intermediate relays, and control coil outgoing ends of the two intermediate relays are connected with the neutral line.

[0011] Further, the water pump intelligent controller is provided with a manual / automatic state selection button, a power supply indicating lamp, an automatic state indicating lamp, a manual state indicating lamp, a 1:2 standby water pump state indicating lamp, a 2:1 standby water pump state indicating lamp and a warning water level indicating lamp, the power supply indicating lamp is connected with the power supply, and the manual / automatic state selection button, the automatic state indicating lamp, the manual state indicating lamp, the 1:2 standby water pump state indicating lamp and the 2:1 standby water pump state indicating lamp are connected with two water pump operation control signal acquisition ends.

[0012] Further, the water pump intelligent controller is provided with two water pump control display areas, and the two water pump control display areas are respectively provided with a start button, a stop button, a water pump operation indicating lamp and a water pump overload indicating lamp; the start button and the stop button control the opening and closing of the AC contactor.

[0013] Further, one wiring end of the controller power supply and one wiring end of the protector power supply are connected with outgoing ends of a fuse, and an incoming end of the fuse is connected with the first phase line of the three-phase five-wire power supply.

[0014] The circuit breaker and the fuse complete the short circuit protection function of the water pump main circuit and the control circuit, the thermal relay is used for overload protection of the water pump, and damage of the water pump motor caused by excessive current is avoided.

[0015] The water pump intelligent controller can realize two-pump rotation, balance the use frequency of the water pump, prolong the service life of the equipment and reduce the single water pump failure rate.

[0016] The integrated water pump intelligent controller and the water pump protector simplify the control cabinet components and wiring and save costs. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1This is a circuit diagram of the water pump inlet of this utility model;

[0018] Figure 2 This is a circuit diagram of the incoming line of the intelligent water pump controller of this utility model;

[0019] Figure 3 This is a schematic diagram of the operation panel of the intelligent water pump controller of this utility model;

[0020] Figure 4 This is a circuit diagram of the incoming line of the water pump protector of this utility model. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] This embodiment discloses an integrated control method for a small sewage pump, such as... Figure 1 As shown, it includes a three-phase five-wire power supply. The three phase wires L1, L2, and L3 of the three-phase five-wire power supply are respectively connected to the first circuit breaker QF11 and the second circuit breaker QF12. The output terminal of the first circuit breaker QF11 is connected to the input terminal of the main contact of the first AC contactor KM1. The output terminal of the main contact of the first AC contactor KM1 is connected to the first thermal relay KH1. The output terminal of the first thermal relay KH1 is connected to the first pump. The output terminal of the second circuit breaker QF12 is connected to the input terminal of the main contact of the second AC contactor KM2. The output terminal of the main contact of the second AC contactor KM2 is connected to the second thermal relay KH2. The output terminal of the second thermal relay KH2 is connected to the second pump.

[0023] like Figure 2As shown, the incoming line end of the three-phase five-wire power supply L1 is connected to the fuse FU1, the outgoing line end of the fuse FU1 is connected to the power supply connection end of the water pump intelligent controller LC-1K2, and the other power supply connection end of the water pump intelligent controller LC-1K2 is connected to the neutral line N; the signal acquisition common end of the water pump intelligent controller LC-1K2 is connected to the normally open contact incoming line end of the first intermediate relay KA1, the normally open contact incoming line end of the second intermediate relay KA2, the normally open contact incoming line end of the first float ball SL1, and the normally open contact incoming line end of the second float ball SL2; the normally open contact outgoing line end of the first intermediate relay KA1 is connected to the first pump fault signal acquisition end of the water pump intelligent controller LC-1K2, the normally open contact outgoing line end of the second intermediate relay KA2 is connected to the second pump fault signal acquisition end of the water pump intelligent controller LC-1K2, the normally open contact outgoing line end of the first float ball SL1 is connected to the warning water level signal acquisition end of the water pump intelligent controller LC-1K2, and the normally open contact outgoing line end of the second float ball SL2 is connected to the pump starting water level signal acquisition end of the water pump intelligent controller LC-1K2; the third outgoing line end of the first circuit breaker QF11 is connected to the input end of the control coil of the first AC contactor KM1, and the output end of the control coil of the first AC contactor KM1 is connected to the first pump control signal output end of the water pump intelligent controller LC-1K2; the third outgoing line end of the second circuit breaker QF12 is connected to the input end of the control coil of the second AC contactor KM2, and the output end of the control coil of the second AC contactor KM2 is connected to the second pump control signal output end of the water pump intelligent controller LC-1K2.

[0024] As shown in Figure 3 The water pump intelligent controller LC-1K2 has a power indicator, an automatic state indicator, a manual state indicator, a 1-by-2 standby water pump state indicator, a 2-by-1 standby water pump state indicator, and a warning water level indicator, and the water pump intelligent controller LC-1K2 has a manual-automatic state selection button.

[0025] The water pump intelligent controller is provided with a first water pump control display area and a second water pump control display area, the first water pump control display area has a start button and a stop button of the first water pump as well as a running indicator and an overload indicator, and the start button and the stop button of the first water pump control the opening and closing of the first AC contactor KM1; the second water pump control display area has a start button and a stop button of the second water pump as well as a running indicator and an overload indicator, and the start button and the stop button of the second water pump control the opening and closing of the second AC contactor KM2.

[0026] As shown in Figure 4 The outgoing line end of the fuse FU1 is connected to the power supply connection end of the water pump protector QBP-1K2, and the other power supply connection end of the water pump protector QBP-1K2 is connected to the neutral line N.

[0027] The first signal acquisition common end of the water pump protector QBP-1K2 is connected with the normally open contact incoming line end of the first water pump leakage signal sensor, the normally closed contact incoming line end of the first water pump overheating signal sensor and the normally open contact incoming line end of the first thermal relay KH1, the normally open contact outgoing line end of the first water pump leakage signal sensor is connected with the first pump leakage signal acquisition end of the water pump protector QBP-1K2, the normally open contact outgoing line end of the first water pump overheating signal sensor is connected with the first pump overheating signal acquisition end of the water pump protector QBP-1K2, and the normally open contact outgoing line end of the first thermal relay KH1 is connected with the first pump overload signal acquisition end of the water pump protector QBP-1K2.

[0028] The second signal acquisition common end of the water pump protector QBP-1K2 is connected with the normally open contact incoming line end of the second water pump leakage signal sensor, the normally closed contact incoming line end of the second water pump overheating signal sensor and the normally open contact incoming line end of the second thermal relay KH2, the normally open contact outgoing line end of the second water pump leakage signal sensor is connected with the second pump leakage signal acquisition end of the water pump protector QBP-1K2, the normally open contact outgoing line end of the second water pump overheating signal sensor is connected with the second pump overheating signal acquisition end of the water pump protector QBP-1K2, and the normally open contact outgoing line end of the second thermal relay KH2 is connected with the second pump overload signal acquisition end of the water pump protector QBP-1K2.

[0029] The outgoing line end of the fuse FU1 is connected with the first pump fault output signal incoming line end of the water pump protector QBP-1K2, the first pump fault output signal outgoing line end of the water pump protector QBP-1K2 is connected with the control coil incoming line end of the first intermediate relay KA1, and the control coil outgoing line end of the first intermediate relay KA1 is connected with the neutral line N; the outgoing line end of the fuse FU1 is connected with the second pump fault output signal incoming line end of the water pump protector QBP-1K2, the second pump fault output signal outgoing line end of the water pump protector QBP-1K2 is connected with the control coil incoming line end of the second intermediate relay KA2, and the control coil outgoing line end of the second intermediate relay KA2 is connected with the neutral line N.

[0030] The operation steps of the embodiment are as follows:

[0031] Step 1) Turn on the first circuit breaker QF11, the second circuit breaker QF12 and the fuse FU1, set the parameters of the first thermal relay KH1 and the second thermal relay KH2, and place them in the power-on standby state;

[0032] Step 2) Select the manual / automatic state through the water pump intelligent controller LC-1K2 to realize manual control or automatic control of the water pump;

[0033] Step 3) If in the manual state, the first water pump control display area and the second water pump control display area of the water pump intelligent controller can be controlled by the start button and the stop button to control the opening and closing of the first AC contactor KM1 and the second AC contactor KM2, so as to start or stop the corresponding first water pump and the second water pump;

[0034] If in the automatic state, the first water pump and the second water pump are started and stopped in real time according to the liquid level feedback of the first floating ball SL1 and the second floating ball SL2, and are alternately controlled;

[0035] Step 4) If in the automatic state, one water pump is automatically switched to the other water pump when overloaded.

[0036] Step 5) If in the alarm water level, the water pump intelligent controller sends an alarm for the alarm water level, and the first water pump and the second water pump are both started to work.

[0037] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A small sewage pump integrated control system, characterized in that, This includes three-phase five-wire power supplies, circuit breakers, AC contactors, thermal relays, water pumps, fuses, intelligent water pump controllers, and water pump protectors; Two sets of circuit breakers, AC contactors, thermal relays, and water pumps are connected in series to the three phase lines of a three-phase five-wire power supply. The output terminals of the circuit breakers are connected to the input terminals of the main contacts of the AC contactors, the output terminals of the main contacts of the AC contactors are connected to the input terminals of the thermal relays, and the output terminals of the thermal relays are connected to the water pumps. The intelligent water pump controller includes a controller power supply, a water pump fault signal acquisition terminal, a warning water level signal acquisition terminal, a pump start water level signal acquisition terminal, and a water pump operation control signal acquisition terminal. There are two water pump fault signal acquisition terminals and two water pump operation control signal acquisition terminals. The two terminals of the controller power supply are respectively connected to the first phase line and the neutral line of a three-phase five-wire power supply. The two water pump fault signal acquisition terminals are respectively connected to the normally open contact output terminals of two intermediate relays. The warning water level signal acquisition terminal and the pump start water level signal acquisition terminal are respectively connected to the normally open contact output terminals of two floats. The two water pump operation control signal acquisition terminals are respectively connected to the control coil output terminals of two AC contactors. The control coil input terminals of the two sets of AC contactors are respectively connected to the third output terminals of two circuit breakers. The common signal acquisition terminal is respectively connected to the normally open contact input terminals of the two intermediate relays and the normally open contact input terminals of the two floats. The water pump protector includes a protector power supply, a water pump leakage signal acquisition terminal, a water pump overheat signal acquisition terminal, a water pump overload signal acquisition terminal, a water pump fault output signal input terminal, and a water pump fault output signal output terminal. Each of the following terminals has two entries: one for water pump leakage signal acquisition, two for water pump overheat signal acquisition, two for water pump overload signal acquisition, two for water pump fault output signal input, and two for water pump fault output signal output. The two terminals of the protector power supply are connected to the first phase line and the neutral line of a three-phase five-wire power supply, respectively. The two water pump leakage signal acquisition terminals are connected to the normally open contact output terminals of two water pump leakage signal sensors, respectively. The two water pump overheat signal acquisition terminals are connected to the normally open contact output terminals of two overheat signal sensors, respectively. The two water pump overload signal acquisition terminals are connected to the normally open contact input terminals of two thermal relays, respectively. The two water pump fault output signal output terminals are connected to the control coil input terminals of two intermediate relays, respectively. The control coil output terminals of the two intermediate relays are connected to the neutral line.

2. The integrated control system for a small sewage pump according to claim 1, characterized in that, The intelligent water pump controller is equipped with a manual / automatic status selection button, a power indicator, an automatic status indicator, a manual status indicator, a 1-use-2-standby water pump status indicator, a 2-use-1-standby water pump status indicator, and a warning water level indicator. The power indicator is connected to a power source. The manual / automatic status selection button, the automatic status indicator, the manual status indicator, the 1-use-2-standby water pump status indicator, and the 2-use-1-standby water pump status indicator are all connected to the two water pump operation control signal acquisition terminals.

3. The integrated control system for a small sewage pump according to claim 2, characterized in that, The intelligent water pump controller has two water pump control display areas, each equipped with a start button, a stop button, a water pump running indicator light, and a water pump overload indicator light. The start button and stop button control the opening and closing of the AC contactor.

4. The integrated control system for a small sewage pump according to claim 1, characterized in that, One terminal of the controller power supply and one terminal of the protector power supply are both connected to the output terminal of the fuse, and the input terminal of the fuse is connected to the first phase line of the three-phase five-wire power supply.

Images