阅读说明：本技术 一种带有全套智能检测系统的矿用潜水泵 (Mining submersible pump with complete set of intelligent detection system ) 是由 方慧康 陆伟刚 曹卫东 于 2018-07-02 设计创作，主要内容包括：本发明是一种带有全套智能检测系统的矿用潜水泵,属于通用机械产品制造技术领域；其创新在于泵上安装防爆出水压力传感器、环形轴向压力传感器、测温元件、电阻测定元件这一系列测量元件,对泵进行综合检测保护；防爆出水压力传感器在测量出水压力、环形轴向压力传感器测量潜水泵转子轴向力、测温元件测量轴承与绕组温度、电阻测定元件测量油室电阻,当这些数据出现异常后电控柜根据事先设定对潜水泵事先自动报警或者切换水泵,避免出现水泵损坏发生淹井事故,同时节省人力成本。(The invention relates to a mining submersible pump with a complete set of intelligent detection system, belonging to the technical field of manufacturing of general mechanical products; the pump is characterized in that a series of measuring elements, namely an explosion-proof water outlet pressure sensor, an annular axial pressure sensor, a temperature measuring element and a resistance measuring element, are arranged on the pump to comprehensively detect and protect the pump; when the data are abnormal, the electric control cabinet automatically alarms or switches the water pump in advance according to the preset setting, the well flooding accident caused by the damage of the water pump is avoided, and meanwhile, the labor cost is saved.)

1. A mining submersible pump with a complete set of intelligent detection system is characterized in that a pump is coaxial with a motor; the explosion-proof water outlet pressure sensor, the annular axial pressure sensor, the temperature measuring element and the resistance measuring element are arranged in a series of measuring elements at a water outlet of the pump and inside the pump; monitoring the water outlet pressure of a water pump, the axial force of a rotor, the temperature rise of a motor winding, the temperature rise of a bearing and the resistance of a sealing oil chamber in real time; through installing intelligent control device additional, automatic display analysis detection data realizes reporting to the police and reminds the user in time to overhaul, trade the pump, stops the immersible pump because of the condition that bearing trouble, mechanical seal trouble, motor trouble scheduling problem damage suddenly, realizes unmanned on duty.

2. The mining submersible pump with the complete set of intelligent detection systems according to claim 1, which is characterized in that: an explosion-proof water outlet pressure sensor is arranged on the top of the submersible pump shell, the measured pressure is transmitted to an electric control device to display the water outlet pressure of the submersible pump, and the abnormal fluctuation of the pressure means that the water pump or the operation condition is abnormal, so that a user is reminded of overhauling in time.

3. The mining submersible pump with the complete set of intelligent detection systems according to claim 1, which is characterized in that: the advanced annular axial pressure sensor is arranged in a pump bearing seat, the axial force generated by the rotor when the submersible pump operates is monitored and uploaded to the electric control device, the axial force condition of the rotor is displayed, if the axial force exceeds a normal range, the fact that the submersible pump operates abnormally is meant, and a user is reminded of timely overhauling and replacing the pump.

4. The mining submersible pump with the complete set of intelligent detection systems according to claim 1, which is characterized in that: advanced temperature measuring elements are arranged on a motor winding and a bearing box, the temperature rise of the motor winding and the temperature rise of a bearing are monitored in real time and are uploaded to an electric control device, and the working condition of the submersible pump is displayed; the motor temperature rise constantly improves and means that the motor has the risk of burning out, and the bearing temperature rise constantly improves and means that the bearing has the risk of damaging, reminds the user in time to overhaul and trade the pump.

5. The mining submersible pump with the complete set of intelligent detection systems according to claim 1, which is characterized in that: an advanced resistance measuring element is arranged in an oil chamber, and the resistance of the oil chamber is monitored in real time; the oil chamber resistance changes to indicate that the mechanical seal leaks water, and a user is reminded to overhaul and change the pump in time.

Technical Field

The invention relates to a mining submersible pump with a complete set of intelligent detection system, belonging to the technical field of manufacturing of general mechanical products.

Background

The mining explosion-proof sand discharge pump is a submersible pump for discharging silt and sewage in a water accumulation pit under a coal mine, and has an explosion-proof function in order to prevent gas explosion caused by motor faults. The water quantity in the underground sump is changed greatly, the silt content is large, and the water pump can not be always on duty when working; when the water pump has abnormal water outlet pressure, abnormal motor winding temperature rise, abnormal bearing temperature rise and axial force, abnormal resistance of a sealed oil chamber, abnormal input current of a motor and abnormal water level of a water pool, the water pump can be damaged quickly, and a well flooding accident can occur if the water pump is damaged and cannot be replaced in time, so that the abnormal condition of the pump in the running process can be found in time, automatic control is carried out, an alarm is given in advance to replace the water pump in time, the well flooding accident is avoided, and the intelligent pump with the full set of intelligent detection system is produced.

Disclosure of Invention

In order to solve the defects of the current mining explosion-proof sand discharge pump, the invention provides a mining submersible pump with a complete set of intelligent detection system, which can monitor the water outlet pressure of the pump, the axial force of a rotor, the temperature rise of a motor winding, the temperature rise of a bearing and the resistance of a sealing oil chamber in real time; by additionally arranging the intelligent control device, the five detection data are automatically displayed and analyzed, so that the submersible pump is automatically started and stopped, an alarm is given, and the occurrence of a well flooding accident caused by sudden damage of the submersible pump is avoided.

The technical scheme adopted by the invention for solving the technical problems is as follows:

explosion-proof play water pressure sensor device of water pump exit installation, monitoring immersible pump outlet pressure signal and upload to electrically controlled device, show the lift condition of immersible pump, if lift (pressure) constantly increases, mean that the outlet pipe way is constantly blockking up, if lift (pressure) constantly reduces, mean that the water inlet is constantly blockking up, electrically controlled device reports to the police when pressure is higher than or is less than the settlement limit value and reminds the staff to overhaul, but the backup pump operation of automatic switch-over when necessary.

The technical scheme adopted by the invention for solving the technical problem also comprises the following steps: adopt advanced annular axial pressure sensor to install under antifriction bearing, the rotor produces axial force during operation and can transmit for pressure sensor through the bearing, and pressure sensor passes through signal of telecommunication and transmits to electric control unit, if axial force is too big, shows that the bearing has probably damaged, and the pump operation has broken down, and at this moment electric control unit can report to the police according to the axial force limit value of presetting and remind the staff to overhaul or change the pump, but the automatic switch-over standby pump operation if necessary.

The technical scheme adopted by the invention for solving the technical problem also comprises the following steps: advanced sensors are arranged in a motor winding, a bearing box and an oil chamber, the temperature rise of the motor winding, the temperature rise of a bearing and the resistance of a mechanical seal oil chamber are monitored and uploaded to an electric control device, and the working condition of the submersible pump is displayed; the continuous increase of the temperature of the motor means that the motor can be burnt out, and the continuous increase of the temperature of the bearing means that the bearing can be damaged; the continuous reduction of the resistance of the oil chamber means that water enters the oil chamber and the mechanical seal is damaged; the motor temperature rise exceeds the limit value, the bearing temperature rise exceeds the limit value, the oil chamber resistor is lower than the limit electric control device, the alarm reminds a worker to overhaul or change the pump, and the standby pump can be automatically switched to operate when necessary.

Drawings

The invention is further illustrated with reference to the following figures and examples.

The figures are front cross-sectional views of the present invention; in the figure, 1, a pump base, 2, a water inlet filter screen, 3, a pump body, 4, an impeller, 5, a sealed oil chamber, 6, a mechanical seal, 7, an oil chamber sealing cover, 8, an oil chamber resistance measuring element, 9, a lower bearing block, 10, a rolling bearing, 11, a motor stator, 12, a motor rotor, 13, a motor explosion-proof shell, 14, a rolling bearing, 15, an upper bearing block, 16, a cable wire connecting terminal, 17, a wiring board, 18, a cable, 19, a water pump water outlet, 20, an explosion-proof water outlet pressure sensor, 21, a signal wire multi-head wiring terminal, 22, an upper bearing temperature measuring element, 23, a winding temperature measuring element, 24, a lower bearing temperature measuring element, 25, an annular axial pressure sensor and 26, a pump.

Detailed Description

All parts are mounted together in the order shown in fig. 1: 1. the anti-explosion water pump comprises a pump base, 2, a water inlet filter screen, 3, a pump body, 4, an impeller, 5, a sealed oil chamber, 6, a mechanical seal, 7, an oil chamber sealing cover, 8, an oil chamber resistance measuring element, 9, a lower bearing seat, 10, a rolling bearing, 11, a motor stator, 12, a motor rotor, 13, a motor anti-explosion shell, 14, a rolling bearing, 15, an upper bearing seat, 16, a cable wire terminal block, 17, a wiring board, 18, a cable, 19, a water pump water outlet, 20, an anti-explosion water outlet pressure sensor, 21, a signal wire multi-head terminal block, 22, an upper bearing temperature measuring element, 23, a winding temperature measuring element, 24, a lower bearing temperature measuring element, 25, an annular axial pressure sensor.

The anti-explosion water outlet pressure sensor 20 is arranged at the top of the pump barrel 26, the water outlet pressure is measured in the running process of the water pump, the electric signal is uploaded to the electric cabinet to display the water outlet pressure of the water pump, and the real-time monitoring and related control of the pressure of the water pump are realized.

In the oil chamber sealing cover 7, an annular axial pressure sensor 25 is arranged below the rolling bearing 10 to bear the pressure of the rolling bearing 10, so that the downward axial force generated when the motor rotor 12 operates can be measured in real time in the operation process of the water pump, and the downward axial force is uploaded to the electric cabinet through signals, so that the real-time monitoring and the related control of the axial force of the water pump are realized.

A lower bearing temperature measuring element 24 is arranged on the lower bearing seat 9 and used for measuring the temperature of the rolling bearing 10; an upper bearing temperature measuring element 22 is arranged on the upper bearing seat 15 and used for measuring the temperature of the rolling bearing 14; a winding temperature measuring element 23 is arranged in the motor stator 11 for measuring the motor temperature; the real-time monitoring and the related control of the temperature of the water pump are realized through the three temperature measurements.

An oil chamber resistance measuring element 8 is arranged on the oil chamber sealing cover 7, can measure the resistance in the sealing oil chamber 5, judges whether water enters the oil chamber or not, and realizes the real-time monitoring and related control of water leakage of the mechanical seal of the water pump.