CN218780508U

CN218780508U - Intelligent horizontal centrifugal pump

Info

Publication number: CN218780508U
Application number: CN202222606521.4U
Authority: CN
Inventors: 高永平; 戴吉隆; 李璐璐; 戴祥鼎; 魏超; 夏昌鑫
Original assignee: Haicheng Suprasuny Pump Co ltd
Current assignee: Haicheng Suprasuny Pump Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-31
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses an intelligent horizontal centrifugal pump, it relates to water pump technical field, including driving motor, the pump part of being connected with driving motor and install the control section in driving motor and pump part outside, the control section includes five-way joint, flow switch, pressure switch, overhead tank and controller, the first interface of five-way joint is connected with the pump body water outlet end in the pump part, flow switch, pressure switch and overhead tank set up respectively with the second of five-way joint, third, fourth interface connection, the fifth interface of five-way joint is connected with outlet conduit; the utility model discloses an adopt the mode of flow switch, the control of pressure switch dual sensor on the five-way joint, not only solved the difficult problem of using the high price of converter, simple structure, reliable, the precision of function and sensitivity height, long service life moreover.

Description

Intelligent horizontal centrifugal pump

Technical Field

The utility model relates to a water pump technical field specifically is an intelligent horizontal centrifugal pump.

Background

At present, two water pumps are mainly used in family life, one is a vortex pump which is mainly characterized by small flow and high lift, but because the vortex pump is a vortex impeller, the clearance is small, the noise is large in the operation process, and meanwhile, most of the overflowing parts of the products are made of cast iron, so that the water used by users is easily rusted, and the water is polluted; the other pump is a centrifugal pump which is provided with a plastic impeller, a stainless steel impeller and the like and is characterized by difficult corrosion, high efficiency, low noise and wider application. With the increasing requirements of various industries on the automatic control of pumps, most centrifugal pumps are designed into variable-frequency products, and the variable-frequency products are controlled by adopting a frequency converter at the outlet of the centrifugal pump so as to control a motor to realize constant-voltage variable-frequency control.

However, the input cost of the frequency converter is high, which is unacceptable for ordinary users, and the ordinary users do not need to upgrade the automatic control of the centrifugal pump to the level of controlling the constant voltage of the motor, so people try to control the pump by using a simple sensor, such as the publication number CN209586715U, an integrated flow double control device for a water pump, which uses a pressure sensor and a magnetic proximity switch to work cooperatively, and starts the pump by using water to push a valve core compression spring to make a magnet contact with the magnetic proximity switch and transmit a signal, otherwise, the pump does not work, and water shortage protection is performed.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art, the utility model provides an intelligent horizontal centrifugal pump, through the mode that adopts flow switch, the control of pressure switch dual sensor on the five-way joint, not only solved the difficult problem of using the high price of converter, simple structure, reliable function, precision and sensitivity are high, long service life moreover.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an intelligent horizontal centrifugal pump, includes driving motor, the pump part of being connected with driving motor and installs the control section in driving motor and pump part outside, the control section includes five-way joint, flow switch, pressure tank and controller, the first interface of five-way joint is connected with the pump body play water end in the pump part, flow switch, pressure switch and pressure tank set up respectively with the second of five-way joint, third, fourth interface connection, the fifth interface of five-way joint is connected with outlet conduit, the last valve that is provided with of outlet conduit, flow switch and pressure switch are connected with the controller through the wire respectively, the controller passes through protection component and sets up on the motor cabinet in driving motor.

Preferably, the protection component comprises a power supply box and a power supply cover, the power supply box is fixedly installed on the motor base through a third screw, the controller is fixedly installed in the power supply box through a second screw, and the power supply cover is fixed on the power supply box through a first screw in a buckling mode.

Preferably, the first interface of the five-way joint is connected with the water outlet end of the pump body in the pump part in a threaded screwing mode.

Preferably, sealing rings are arranged between the five interfaces of the five-way joint and connecting parts of the five interfaces.

Preferably, a capacitor for starting the motor is arranged in the power supply box.

The utility model provides an intelligent horizontal centrifugal pump possesses following beneficial effect:

1. the utility model adopts the control mode of the flow switch and the pressure switch on the five-way joint, not only solves the problem of high price of the frequency converter, but also has simple structure, reliable function, high precision and sensitivity and long service life;

2. the utility model discloses well pressure switch and flow switch all are connected with the play water end of the pump body through five-way joint, and the simultaneous control ware passes through the power pack to be installed on the motor cabinet, forms a whole, and the transportation is convenient, and stability is good, the maintenance and the maintenance of being convenient for.

Drawings

Fig. 1 is a schematic diagram of the control part of the intelligent horizontal centrifugal pump of the present invention.

Fig. 2 is the whole schematic diagram of the intelligent horizontal centrifugal pump of the utility model.

Fig. 3 is a schematic diagram of the pump part of the intelligent horizontal centrifugal pump of the present invention.

Fig. 4 is the schematic diagram of the driving motor of the intelligent horizontal centrifugal pump of the present invention.

Fig. 5 is a schematic view of the working principle of the control part of the present invention.

In the figure: 1. a screw; 2. an end cap; 3. a pump body; 4. a nut; 5. a gland; 6. a water inlet guide vane; 7. an impeller; 8. a long shaft sleeve; 9. water outlet guide vanes; 10. a short shaft sleeve; 11. a retainer ring; 12. mechanical sealing; 13. a pump cover; 14. a rotor; 15. the motor is connected with the frame; 16. a bolt; 17. a bearing; 18. a stator; 19. a motor base; 20. a fan; 21. a hood; 22. a fixing screw; 23. a support leg; 24. a flow switch; 25. a five-way joint; 26. a pressure switch; 27. a pressure tank; 28. a first screw; 29. a power supply cover; 30. a second screw; 31. a controller; 32. a capacitor; 33. a power supply box; 34. a third screw; 35. a drive motor; 36. a pump portion; 37. and a control section.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-5, an intelligent horizontal centrifugal pump comprises a driving motor 35, a pump part 36 connected with the driving motor 35, and a control part 37 installed outside the driving motor 35 and the pump part 36, wherein the control part 37 comprises a five-way joint 25, a flow switch 24, a pressure switch 26, a pressure tank 27 and a controller 31, a first interface of the five-way joint 25 is connected with a water outlet end of a pump body 3 in the pump part 36, the flow switch 24, the pressure switch 26 and the pressure tank 27 are respectively connected with a second interface, a third interface and a fourth interface of the five-way joint 25, a fifth interface of the five-way joint 25 is connected with a water outlet pipe, a valve is arranged on the water outlet pipe, the flow switch 24 and the pressure switch 26 are respectively connected with the controller 31 through wires, and the controller 31 is arranged on a motor base 19 in the driving motor 35 through a protection assembly; the protection assembly comprises a power supply box 33 and a power supply cover 29, the power supply box 33 is fixedly arranged on the motor base 19 through a third screw 34, the controller 31 is fixedly arranged in the power supply box 33 through a second screw 30, and the power supply cover 29 is fastened and fixed on the power supply box 33 through a first screw 28; the first interface of the five-way joint 25 is connected with the water outlet end of the pump body 3 in the pump part 36 in a threaded screwing mode; sealing rings are arranged between the five interfaces of the five-way joint 25 and connecting parts thereof; a capacitor 32 for starting the motor is arranged in the power box 33.

The detailed connection means is a technique known in the art, and the following main description is provided for the working principle and process, and specifically provided for the following:

as shown in fig. 1-5, the utility model discloses well driving motor 35 and pump part 36 are prior art, the play water end of the pump body 3 among the pump part 36 and the first interface connection of five-way joint 25, five-way joint 25 second, third, the fourth interface communicates with flow switch 24, pressure switch 26 and overhead tank 27 respectively, flow pressure fluctuation appears easily when the pump is worked at low discharge, pressure switch 26 is the easy malfunction, can play the effect of stabilizing pipeline pressure after having overhead tank 27, flow switch 24 and pressure switch 26 are connected with controller 31 on the motor cabinet 19 among the driving motor 35 through the wire, be provided with electric capacity 32 in the power pack (33), electric capacity 32 establishes ties with driving motor 35's start winding for start driving motor 35 work, electric capacity 32 is provided with the protection component with controller 31 outside, the utility model discloses a whole centrifugal pump's work of motor control among flow switch 24, pressure switch 26, controller 31 and the driving motor 35, not only solved the difficult problem of using the high price of converter, and simple structure, the function is reliable, precision and high sensitivity, long service life. The centrifugal pump specifically includes four parts:

starting for the first time: the power supply of the driving motor 35 is switched on, the controller 31 is switched on, the motor in the driving motor 35 starts to run, water flows into the pump body 3 in the pump part 36, flows out from the water outlet end of the pump body 3, enters the five-way connector 25 and flows through the flow switch 24, when the water flow reaches the set value of the flow switch 24, the flow switch 24 is switched on, and the centrifugal pump works normally.

Stopping the machine: when the valve on the water outlet pipe is closed, the water flow stops flowing, the flow switch 24 is disconnected, the pressure of the pump cavity rises to reach the set value of the pressure switch 26, so that the pressure switch 26 is disconnected, and after the controller 31 detects the signals of the disconnection of the two switches, the motor stops running, and the centrifugal pump is in a stop state.

And (3) starting again: the valve on the water outlet pipeline is opened again, the pressure of the pump cavity is reduced and is lower than the set value of the pressure switch 26, the pressure switch 26 is closed, the controller 31 provides power for the motor after detecting the signal, the motor is started again, when the water flow is higher than the set value of the flow switch 24, the flow switch 24 is closed, the centrifugal pump works normally, particularly, the water flow does not reach the set value of the flow switch 24 in the continuous A time period, the pressure switch is in a closed state, and the centrifugal pump enters water shortage protection work.

Water shortage protection: in normal operation, when the water inlet end of the centrifugal pump has no water flow in the continuous time length A or the water flow does not reach the set value of the flow switch 24, the flow switch 24 is in an off state, the pressure switch 26 is in an on state, the controller 31 stops supplying power to the motor, the motor stops running temporarily, the controller supplies a motor starting signal every time length B, and the centrifugal pump starts to run normally until the controller 31 detects that the flow switch 24 reaches the set value and is switched to the on state.

The protection assembly comprises a power box 33 and a power cover 29, the power box 33 is fixedly installed on the motor base 19 through a third screw 34, the controller 31 is fixedly installed in the power box 33 through a second screw 30, and the power cover 29 is fastened and fixed on the power box 33 through a first screw 28, so that the power box 33 and the power cover 29 protect the controller 31.

The five-way joint 25 is connected with the water outlet end of the pump body 3 in the pump part 36 in a threaded screwing mode, and sealing rings are arranged among the water outlet end of the pump body 3, the flow switch 24, the pressure switch 26, the pressure tank 27 and the water outlet pipeline which are connected with the five-way joint.

The "continuous a duration", "every B duration" and "set value" in the above description are values obtained by the skilled person according to experience, the control of the "continuous a duration" and "every B duration" can be realized by a time relay, the control of the motor power supply transmitted to the controller 31 according to the above signals can be realized by the prior art, the controller judges the pressure and flow conditions by collecting the electric contact signals of the flow switch and the pressure switch, and gives a control instruction to realize the control of the operation of the centrifugal pump, and the contents of the parts are the prior art; the sealing rings, the water outlet pipes and the valves are not shown in the above description, but are well understood by those skilled in the art as a routine measure in the field, and will not be described in detail.

The utility model discloses well pump part 36, as shown in FIG. 3: the pump part 36 comprises a screw rod 1, an end cover 2, a pump body 3, a nut 4, a gland 5, a water inlet guide vane 6, an impeller 7, a long shaft sleeve 8, a water outlet guide vane 9, a short shaft sleeve 10, a mechanical seal 12, a pump cover 13, a rotor 14 and a motor connecting frame 15, wherein the pump cover 13 is arranged at the front end of the motor connecting frame 15, the mechanical seal 12 is arranged on the pump cover 13 and the shaft extension of the rotor 14 and is fixed by a retainer ring 11, the short shaft sleeve 10, the impeller 7, the water outlet guide vane 9, the long shaft sleeve 8, the impeller 7 and the gland 5 are sequentially sleeved at the shaft extension end of the rotor 14 and are locked by the nut 4, the water inlet guide vane 6 is arranged at the front end of the water outlet guide vane 9, the pump body 3 is arranged at the front end of the water inlet guide vane 6, the end cover 2 is arranged at the front end of the pump body 3 and is fixed on the motor connecting frame 15 by the screw rod 1, and the pump part 36 is completely installed.

The utility model discloses well driving motor 35, as shown in FIG. 4: the driving motor 35 comprises a bolt 16, bearings 17, a stator 18, a motor base 19, a fan 20, a hood 21, screws and support legs 23, the stator 18 is assembled in the motor base 19, a pair of the bearings 17 is assembled at the shaft end of the rotor 14, the rotor 14 provided with the bearings 17 is assembled in the motor base 19 provided with the stator 18, one end of the rotor 14 is connected with the output end of the motor in the motor base 19, a motor connecting frame 15 is assembled at the front end of the motor base 19 and fixed by the bolt 16, the fan 20 is assembled at the shaft extending tail end of the rotor 14, the hood 21 is buckled at the tail end of the motor base 19 and fixed on the motor base 19 by a fixing screw 22, the support legs 23 are installed at the lower end of the motor base 19, and the driving motor 35 is installed completely.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The intelligent horizontal centrifugal pump comprises a driving motor (35), a pump part (36) connected with the driving motor (35) and a control part (37) installed outside the driving motor (35) and the pump part (36), and is characterized in that the control part (37) comprises a five-way connector (25), a flow switch (24), a pressure switch (26), a pressure tank (27) and a controller (31), a first interface of the five-way connector (25) is connected with a water outlet end of a pump body (3) in the pump part (36), the flow switch (24), the pressure switch (26) and the pressure tank (27) are respectively connected with a second interface, a third interface and a fourth interface of the five-way connector (25), a fifth interface of the five-way connector (25) is connected with a water outlet pipeline, a valve is arranged on the water outlet pipeline, the flow switch (24) and the pressure switch (26) are respectively connected with the controller (31) through conducting wires, and the controller (31) is arranged on a motor seat (19) in the driving motor (35) through a protection assembly.

2. The intelligent horizontal centrifugal pump according to claim 1, wherein the protective assembly comprises a power supply box (33) and a power supply cover (29), the power supply box (33) is fixedly installed on the motor base (19) through a third screw (34), the controller (31) is fixedly installed in the power supply box (33) through a second screw (30), and the power supply cover (29) is fastened and fixed on the power supply box (33) through a first screw (28).

3. An intelligent horizontal centrifugal pump according to claim 1, wherein the first port of the five-way joint (25) is connected with the water outlet end of the pump body (3) in the pump part (36) in a threaded manner.

4. An intelligent horizontal centrifugal pump according to claim 1, wherein sealing rings are arranged between the five interfaces of the five-way joint (25) and the connecting parts of the five interfaces.

5. An intelligent horizontal centrifugal pump according to claim 2, characterized in that a capacitor (32) for starting the motor is arranged in the power supply box (33).