CN112555168A - Vertical full-adjustable axial flow pump impeller pump body clearance detection device - Google Patents
Vertical full-adjustable axial flow pump impeller pump body clearance detection device Download PDFInfo
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- CN112555168A CN112555168A CN202011493654.4A CN202011493654A CN112555168A CN 112555168 A CN112555168 A CN 112555168A CN 202011493654 A CN202011493654 A CN 202011493654A CN 112555168 A CN112555168 A CN 112555168A
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- 238000001514 detection method Methods 0.000 title claims abstract description 111
- 239000007788 liquid Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000011897 real-time detection Methods 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 47
- 238000004891 communication Methods 0.000 claims description 37
- 230000000087 stabilizing effect Effects 0.000 claims description 26
- 239000003990 capacitor Substances 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000227287 Elliottia pyroliflora Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
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Abstract
Vertical full adjustment axial-flow pump impeller pump body clearance detection device includes: the pump body is a cylindrical pump body, and a water inlet and a water outlet are formed in the pump body; the pump shaft is arranged in the pump body along the length direction of the pump body; the impeller is arranged at one end, close to the water inlet, of the pump shaft, the pump shaft is used for driving the impeller to rotate, and the impeller is used for generating thrust on liquid in the pump body and pushing out the liquid; the servomotor is arranged at one end of the pump shaft, which is far away from the water inlet, and is used for adjusting the rotation of the pump shaft so as to drive the impeller to generate thrust on the liquid in the pump body to push the liquid out; the guide bearing is sleeved on the pump shaft and used for reducing the shaking of the pump shaft and improving the stability; the detecting unit, detecting unit's quantity is a plurality of, equidistant setting on the pump body respectively, detecting unit is used for the clearance distance between real-time detection impeller and the pump body inner wall to give the host computer with real-time clearance distance data transmission.
Description
The technical field is as follows:
the invention relates to a vertical type full-adjustment axial flow pump impeller pump body gap detection device.
Background art:
the axial-flow pump is a pump which transfers liquid along the axial direction by the acting force of the blade of the rotating impeller on the liquid, and the axial-flow pump has a plurality of types, such as vertical type, horizontal type, inclined type and through-flow type; the working principle of the axial flow pump is as follows: the axial flow pump is characterized in that the axial flow pump conveys liquid by utilizing the thrust of the blades of the rotating impeller instead of the centrifugal force of the impeller on the liquid, so that the conveyed liquid flows along the direction of the pump shaft, and after the pump shaft of the axial flow pump is driven to rotate by the motor, the blades and the axial line of the pump shaft of the axial flow pump have a certain helical angle, so that the thrust is generated on the liquid, and the liquid is pushed out and discharged along the discharge pipe.
Based on the structure of the axial flow pump, the axial flow pump has the characteristics of large flow, simple structure, light weight and small overall dimension; when the axial-flow pump works, the impeller is completely immersed in water, the pump does not need to be filled when the axial-flow pump is started, the operation is simple and convenient, and the axial-flow pump can work at higher efficiency only by changing the angle of the blade.
In the actual use process, the pump shaft of the axial flow pump is long, so that slight shaking is easy to occur, and the impeller and the pump body are contacted and collided; in order to avoid the contact collision phenomenon of the impeller and the pump body of the axial-flow pump in the using process, the guide bearing is sleeved on the pump shaft of the conventional axial-flow pump to reduce the shaking and improve the stability, after the guide bearing is worn for a period of time, the limiting performance is poor, the blocking phenomenon is easy to occur, therefore, a worker is required to regularly maintain or maintain after the blocking phenomenon occurs, the operation steps are complex, the maintenance workload is large, the worker cannot perform corresponding maintenance and operation according to the real-time running state in the pump body, the maintenance precision is low, and the practicability is poor.
The invention content is as follows:
the embodiment of the invention provides a vertical type full-adjustment axial flow pump impeller pump body gap detection device which is reasonable in structural design, based on an internal structure and electrical elements of an axial flow pump, the gap distance between an axial flow pump impeller and a pump body is detected in real time through infrared detection and liquid pressure data, the gap distance can be timely fed back to a worker for maintaining the axial flow pump when a collision fault occurs, operation steps are simplified, the maintenance workload of the worker is reduced, the axial flow pump can be quickly and accurately maintained, and the problems in the prior art are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
vertical full adjustment axial-flow pump impeller pump body clearance detection device includes:
the pump body is a cylindrical pump body, and a water inlet and a water outlet are formed in the pump body;
the pump shaft is arranged in the pump body along the length direction of the pump body;
the impeller is arranged at one end, close to the water inlet, of the pump shaft, the pump shaft is used for driving the impeller to rotate, and the impeller is used for generating thrust on liquid in the pump body and pushing out the liquid;
the servomotor is arranged at one end of the pump shaft, which is far away from the water inlet, and is used for adjusting the rotation of the pump shaft so as to drive the impeller to generate thrust on the liquid in the pump body to push the liquid out;
the guide bearing is sleeved on the pump shaft and used for reducing the shaking of the pump shaft and improving the stability;
the detecting unit, detecting unit's quantity is a plurality of, equidistant setting on the pump body respectively, detecting unit is used for the clearance distance between real-time detection impeller and the pump body inner wall to give the host computer with real-time clearance distance data transmission.
The guide bearing comprises an outer ring and an inner ring, a copper sleeve is arranged on the inner side of the inner ring, a plurality of circular arc through holes are uniformly distributed on the copper sleeve along the circumferential direction, the opening of each circular arc through hole faces the pump shaft, and a plurality of split cylindrical rollers are arranged in each circular arc through hole respectively so as to enable the cylindrical rollers to be in contact with the pump shaft; one end of each circular arc-shaped through hole is semi-closed by the outer ring, and the other end of each circular arc-shaped through hole is semi-closed by the gasket, so that the cylindrical roller is prevented from falling off.
The cylindrical roller is made of silicon nitride ceramics.
The detection unit comprises an electrically connected controller and a detection probe extending into the pump body, the detection probe is used for detecting the gap distance between the impeller and the inner wall of the pump body, the controller is electrically connected with a voltage stabilizing module, a pressure detection module, an audible and visual alarm module, a clock module, a communication module and an instruction output module, the controller is electrically connected with the detection probe through the instruction output module, and the controller is in wireless communication connection with an upper computer of a worker through the communication module; the pressure stabilizing module is used for providing stable power supply voltage for the controller, the pressure detection module is used for detecting flow pressure parameters in the pump body, the sound-light alarm module is used for providing sound-light alarm for workers, the clock module is used for recording detection time nodes corresponding to the detection probes, the communication module is used for the controller to establish wireless communication with an upper computer, and the instruction output module is used for transmitting detection instructions to the detection probes so as to detect the gap distance between the impeller and the inner wall of the pump body.
The model STM32F103C8T6 of the controller is characterized in that 64 pins are arranged on the controller, the controller is connected with a voltage stabilizing module through a first pin, a fifth pin and a sixth pin of the controller are connected with a crystal oscillator, a first capacitor, a second capacitor and a third resistor are connected in parallel on the crystal oscillator, and a seventh pin of the controller is grounded through a fourth resistor and a third capacitor which are connected in parallel; the controller is connected with the instruction output module through a fifteen-pin, the controller is connected with the clock module through a sixteen-pin, the controller is connected with the detection probe through a twenty-two-pin, the controller is connected with the pressure detection module through a thirty-pin, the controller is connected with the communication module through a thirty-third-pin and a thirty-fourth-pin, and the controller is connected with the sound and light alarm module through a thirty-eighteen-pin and a thirty-nine-pin.
The model of voltage stabilizing module is LM317, is equipped with 3 pins on voltage stabilizing module, is equipped with sixth electric capacity and ninth resistance between voltage stabilizing module's a pin and No. two pins, is equipped with tenth resistance and seventh electric capacity between voltage stabilizing module's No. two pins and No. three pins, voltage stabilizing module's No. three pin links to each other with the pin of controller.
The instruction output module comprises a photoelectric coupler, the model of the photoelectric coupler is TLP290, 4 pins are arranged on the photoelectric coupler, a first pin of the photoelectric coupler is connected with the detection probe through a sixth resistor, a seventh resistor and a fourth capacitor are arranged between the first pin and a second pin of the photoelectric coupler, a fifth capacitor and an eighth resistor are arranged between a third pin and a fourth pin of the photoelectric coupler, and the third pin of the photoelectric coupler is connected with a fifteenth pin of the controller; the detection probe is an infrared distance measurement probe, the type of the detection probe is HC-SR505, 3 pins are arranged on the infrared distance measurement probe, and the pin II of the detection probe is connected with the pin twenty-two of the controller; the pressure detection module is a pressure sensor, the type of the pressure sensor is MIK-P300, and the pressure detection module is connected with a thirty-grade pin of the controller through an OUT pin.
The clock module is a 555 timer, 8 pins are arranged on the 555 timer, and the 555 timer is connected with a sixteen pin of the controller through a three pin.
The model of the communication module is ESP8266, 8 pins are arranged on the communication module, the communication module is connected with thirty-three pins of the controller through four pins, and the communication module is connected with thirty-four pins of the controller through eight pins.
The sound and light alarm module comprises a first electromagnetic relay and a second electromagnetic relay, the first electromagnetic relay is electrically connected with the red indicator lamp, and the second electromagnetic relay is electrically connected with the loudspeaker.
By adopting the structure, the gap distance between the impeller and the pump body is detected in real time through the detection unit, and the real-time data is transmitted to the upper computer, so that a worker can timely acquire corresponding distance data, the contact collision phenomenon between the impeller and the inner wall of the pump body can be prevented, and the gap distance between the impeller and the pump body is detected on the detection unit through a plurality of detection modes of infrared detection and pressure detection, so that the acquired data are accurate and reliable; the guide bearing arranged on the pump shaft is used for reducing the shaking of the pump shaft, improving the stability, playing a role in limiting, further preventing collision and contact accidents and ensuring the stable and efficient operation of the axial-flow pump; carry out integrated control with a plurality of functional module through the controller, handle and transmit data, make the staff in time acquire corresponding detection data, have simple and convenient practical, accurate efficient advantage.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the distribution of the detecting units on the pump body.
Fig. 3 is a schematic structural view of a guide bearing of the present invention.
Fig. 4 is a side view of fig. 3.
Fig. 5 is a schematic structural view of the copper bush of the present invention.
Fig. 6 is a control schematic of the present invention.
Fig. 7 is an electrical schematic of the controller of the present invention.
Fig. 8 is an electrical schematic of the clock module of the present invention.
FIG. 9 is an electrical schematic of the command output module of the present invention.
FIG. 10 is an electrical schematic of the detection probe of the present invention.
FIG. 11 is an electrical schematic of the pressure sensing module of the present invention.
Fig. 12 is an electrical schematic of the communication module of the present invention.
Fig. 13 is an electrical schematic of the voltage regulator module of the present invention.
FIG. 14 is an electrical schematic diagram of the acousto-optic warning module of the present invention.
In the figure, the device comprises a pump body 1, a pump body 2, a water inlet 3, a water outlet 4, a pump shaft 5, an impeller 6, a servomotor 7, a guide bearing 8, a detection unit 9, an outer ring 10, an inner ring 11, a copper sleeve 12, an arc-shaped through hole 13, a cylindrical roller 14 and a gasket.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1 to 14, the vertical fully-regulated axial flow pump impeller pump body clearance detection device comprises:
the pump body 1 is a cylindrical pump body, and a water inlet 2 and a water outlet 3 are arranged on the pump body 1;
the pump shaft 4 is arranged in the pump body 1 along the length direction of the pump body 1;
the impeller 5 is arranged at one end, close to the water inlet 2, of the pump shaft 4, the pump shaft 4 is used for driving the impeller 5 to rotate, and the impeller 5 is used for generating thrust on liquid in the pump body 1 and pushing out the liquid;
the servomotor 6 is arranged at one end of the pump shaft 4, which is far away from the water inlet 2, and the servomotor 6 is used for adjusting the rotation of the pump shaft 4 so as to drive the impeller 5 to generate thrust on the liquid in the pump body 1 to push the liquid out;
the guide bearing 7 is sleeved on the pump shaft 4, and the guide bearing 7 is used for reducing the shaking of the pump shaft 4 and improving the stability;
detecting element 8, detecting element 8's quantity is a plurality of, equidistant setting respectively on the pump body 1, detecting element 8 is used for the clearance distance between real-time detection impeller 5 and the 1 inner wall of the pump body to give the host computer with real-time clearance distance data transmission.
The guide bearing 7 comprises an outer ring 9 and an inner ring 10, a copper sleeve 11 is arranged on the inner side of the inner ring 10, a plurality of circular arc through holes 12 are uniformly distributed on the copper sleeve 11 along the circumferential direction, the opening of each circular arc through hole 12 faces the pump shaft 4, and a plurality of split cylindrical rollers 13 are respectively arranged in each circular arc through hole 12 so that the cylindrical rollers 13 are in contact with the pump shaft 4; one end of each circular arc-shaped through hole 12 is semi-closed by the outer ring 9, and the other end is semi-closed by the gasket 14, so that the cylindrical roller 13 is prevented from falling off.
The material of the cylindrical roller 13 is silicon nitride ceramic.
The detection unit 8 comprises an electrically connected controller and a detection probe extending into the pump body 1, the detection probe is used for detecting the gap distance between the impeller and the inner wall of the pump body, the controller is electrically connected with a voltage stabilizing module, a pressure detection module, an audible and visual alarm module, a clock module, a communication module and an instruction output module, the controller is electrically connected with the detection probe through the instruction output module, and the controller is in wireless communication connection with an upper computer of a worker through the communication module; the voltage stabilizing module is used for providing stable power supply voltage for the controller, the pressure detection module is used for detecting flow pressure parameters in the pump body 1, the sound-light alarm module is used for providing sound-light alarm for workers, the clock module is used for recording detection time nodes corresponding to the detection probes, the communication module is used for the controller to establish wireless communication with an upper computer, and the instruction output module is used for transmitting detection instructions to the detection probes so as to detect the gap distance between the impeller 5 and the inner wall of the pump body 1.
The model STM32F103C8T6 of the controller is characterized in that 64 pins are arranged on the controller, the controller is connected with a voltage stabilizing module through a first pin, a fifth pin and a sixth pin of the controller are connected with a crystal oscillator, a first capacitor, a second capacitor and a third resistor are connected in parallel on the crystal oscillator, and a seventh pin of the controller is grounded through a fourth resistor and a third capacitor which are connected in parallel; the controller is connected with the instruction output module through a fifteen-pin, the controller is connected with the clock module through a sixteen-pin, the controller is connected with the detection probe through a twenty-two-pin, the controller is connected with the pressure detection module through a thirty-pin, the controller is connected with the communication module through a thirty-third-pin and a thirty-fourth-pin, and the controller is connected with the sound and light alarm module through a thirty-eighteen-pin and a thirty-nine-pin.
The model of voltage stabilizing module is LM317, is equipped with 3 pins on voltage stabilizing module, is equipped with sixth electric capacity and ninth resistance between voltage stabilizing module's a pin and No. two pins, is equipped with tenth resistance and seventh electric capacity between voltage stabilizing module's No. two pins and No. three pins, voltage stabilizing module's No. three pin links to each other with the pin of controller.
The instruction output module comprises a photoelectric coupler, the model of the photoelectric coupler is TLP290, 4 pins are arranged on the photoelectric coupler, a first pin of the photoelectric coupler is connected with the detection probe through a sixth resistor, a seventh resistor and a fourth capacitor are arranged between the first pin and a second pin of the photoelectric coupler, a fifth capacitor and an eighth resistor are arranged between a third pin and a fourth pin of the photoelectric coupler, and the third pin of the photoelectric coupler is connected with a fifteenth pin of the controller; the detection probe is an infrared distance measurement probe, the type of the detection probe is HC-SR505, 3 pins are arranged on the infrared distance measurement probe, and the pin II of the detection probe is connected with the pin twenty-two of the controller; the pressure detection module is a pressure sensor, the type of the pressure sensor is MIK-P300, and the pressure detection module is connected with a thirty-grade pin of the controller through an OUT pin.
The clock module is a 555 timer, 8 pins are arranged on the 555 timer, and the 555 timer is connected with a sixteen pin of the controller through a three pin.
The model of the communication module is ESP8266, 8 pins are arranged on the communication module, the communication module is connected with thirty-three pins of the controller through four pins, and the communication module is connected with thirty-four pins of the controller through eight pins.
The sound and light alarm module comprises a first electromagnetic relay and a second electromagnetic relay, the first electromagnetic relay is electrically connected with the red indicator lamp, and the second electromagnetic relay is electrically connected with the loudspeaker.
The working principle of the vertical type fully-adjustable axial flow pump impeller pump body gap detection device in the embodiment of the invention is as follows: based on the internal structure of the pump body 1, the gap distance between the impeller 5 of the axial-flow pump and the pump body 1 can be detected in real time by matching a plurality of detection units arranged on the pump body 1 and adopting a detection mode combining infrared detection and pressure detection, so that the gap distance is timely fed back to a worker for maintaining the axial-flow pump when a collision fault occurs, the operation steps are simplified, the maintenance workload and the actual maintenance difficulty of the worker are reduced, and the axial-flow pump can be quickly and accurately maintained; and combine to set up the guide bearing on the pump shaft, play spacing protection's effect, further reduce rocking of pump shaft 4, promote stability, prevent the contact collision phenomenon, guarantee the steady high-efficient operation of axial-flow pump and action.
In the integral scheme, the detection unit 8 is a core component and is used for detecting the gap distance between the impeller 5 and the inner wall of the pump body 1 in real time and transmitting real-time gap distance data to an upper computer; and the detection units 8 are arranged on the pump body 1 at equal intervals, so that the gap distance between the impeller 5 and the pump body 1 can be detected from various angles in the process that the impeller 5 rotates around the pump shaft 4, and the accuracy and reliability of the data obtained by detection are ensured.
The detection unit comprises an electrically connected controller and a detection probe extending into the pump body 1, the detection probe is used for detecting the gap distance between the impeller 5 and the inner wall of the pump body 1, the controller is electrically connected with a voltage stabilizing module, a pressure detection module, an audible and visual alarm module, a clock module, a communication module and an instruction output module, the controller is electrically connected with the detection probe through the instruction output module, and the controller is in wireless communication connection with an upper computer of a worker through the communication module; the voltage stabilizing module is used for providing stable power supply voltage for the controller, the pressure detection module is used for detecting flow pressure parameters in the pump body 1, the sound-light alarm module is used for providing sound-light alarm for workers, the clock module is used for recording detection time nodes corresponding to the detection probes, the communication module is used for the controller to establish wireless communication with an upper computer, and the instruction output module is used for transmitting detection instructions to the detection probes so that the detection probes can act to detect the gap distance between the impeller 5 and the inner wall of the pump body 1.
In the process of mounting the cylindrical rollers 13, firstly, the gasket is taken down, the plurality of split type cylindrical rollers 13 are sequentially placed into the arc-shaped through holes 12, and the openings of the arc-shaped through holes 12 are arranged towards the pump shaft 4, so that the cylindrical rollers 13 are in contact with the pump shaft 4, the pump shaft 4 is limited and protected, the shaking of the pump shaft 4 is further reduced, the stability is improved, and the contact collision phenomenon is prevented; preferably, the existing rollers are all integral, when the existing rollers are damaged, the integral rollers need to be replaced to ensure the normal operation of the pump body 1, and the replacement steps are complicated, so that the waste of resources is caused; the split cylindrical roller 13 is adopted, only the roller which is seriously abraded needs to be replaced, the operation is convenient, and the perfect roller cannot be wasted; after the roller is installed, the outer ring 9 is used for semi-sealing the circular arc through hole 12 to prevent the roller from sliding off.
The controller adopts STM32F103C8T6, can connect and drive many different types of functional module simultaneously to the operation is stable, and the probability that the disorder phenomenon appears is very low.
In this scheme, adopt pressure detection and the mode that infrared detection combined together to detect the clearance distance between impeller 5 and the 1 inner wall of the pump body, verify through the data of two kinds of different grade types whether clearance distance is in normal scope, only when two kinds of data all are in normal scope, just can confirm that impeller 5 and 1 inner wall of the pump body do not take place the contact collision phenomenon.
The types of instruments actually used are: the detection probe is HC-SR505, the pressure sensor is MIK-P300 in model, the performance is stable, the functions are complete, the pressure parameters and the spacing parameters in the pump body can be accurately detected, and the data are transmitted to an upper computer of a worker through a communication module ESP8266, so that the worker can master the running state of the axial flow pump in real time; the clock module is the 555 timer, can take notes the corresponding detection time node of detection probe and pressure sensor, in case the contact collision and then the dead accident of card appear, can take notes corresponding and time node, carries out corresponding maintenance according to the time length to report to the police through audible-visual alarm module's pilot lamp and speaker, remind the staff to look over.
Particularly, the detection probe is correspondingly controlled through the photoelectric coupler, the response speed is high, and the detection probe can be conveniently controlled by workers.
In summary, the vertical type fully-adjustable axial flow pump impeller pump body gap detection device in the embodiment of the invention is based on the internal structure of the pump body 1, is matched with the plurality of detection units arranged on the pump body 1, adopts a detection mode combining infrared detection and pressure detection, and can detect the gap distance between the axial flow pump impeller and the pump body in real time, so that the gap distance is timely fed back to a worker for maintaining the axial flow pump when a collision fault occurs, the operation steps are simplified, the maintenance workload and the actual maintenance difficulty of the worker are reduced, and the rapid and accurate maintenance can be performed on the axial flow pump; and the guide bearing 7 of combination setting on pump shaft 4 plays the effect of spacing protection, further reduces rocking of pump shaft 4, promotes stability, prevents the contact collision phenomenon, guarantees the steady high-efficient operation and the action of axial-flow pump, can be applicable to the axial-flow pump of multiple different grade type, and the commonality is strong.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (10)
1. Vertical full adjustment axial-flow pump impeller pump body clearance detection device, its characterized in that includes:
the pump body is a cylindrical pump body, and a water inlet and a water outlet are formed in the pump body;
the pump shaft is arranged in the pump body along the length direction of the pump body;
the impeller is arranged at one end, close to the water inlet, of the pump shaft, the pump shaft is used for driving the impeller to rotate, and the impeller is used for generating thrust on liquid in the pump body and pushing out the liquid;
the servomotor is arranged at one end of the pump shaft, which is far away from the water inlet, and is used for adjusting the rotation of the pump shaft so as to drive the impeller to generate thrust on the liquid in the pump body to push the liquid out;
the guide bearing is sleeved on the pump shaft and used for reducing the shaking of the pump shaft and improving the stability;
the detecting unit, detecting unit's quantity is a plurality of, equidistant setting on the pump body respectively, detecting unit is used for the clearance distance between real-time detection impeller and the pump body inner wall to give the host computer with real-time clearance distance data transmission.
2. The vertical type fully-adjustable axial flow pump impeller pump body gap detection device according to claim 1, characterized in that: the guide bearing comprises an outer ring and an inner ring, a copper sleeve is arranged on the inner side of the inner ring, a plurality of circular arc through holes are uniformly distributed on the copper sleeve along the circumferential direction, the opening of each circular arc through hole faces the pump shaft, and a plurality of split cylindrical rollers are arranged in each circular arc through hole respectively so as to enable the cylindrical rollers to be in contact with the pump shaft; one end of each circular arc-shaped through hole is semi-closed by the outer ring, and the other end of each circular arc-shaped through hole is semi-closed by the gasket, so that the cylindrical roller is prevented from falling off.
3. The vertical type full-adjustment axial-flow pump impeller pump body gap detection device according to claim 2, characterized in that: the cylindrical roller is made of silicon nitride ceramics.
4. The vertical type fully-adjustable axial flow pump impeller pump body gap detection device according to claim 1, characterized in that: the detection unit comprises an electrically connected controller and a detection probe extending into the pump body, the detection probe is used for detecting the gap distance between the impeller and the inner wall of the pump body, the controller is electrically connected with a voltage stabilizing module, a pressure detection module, an audible and visual alarm module, a clock module, a communication module and an instruction output module, the controller is electrically connected with the detection probe through the instruction output module, and the controller is in wireless communication connection with an upper computer of a worker through the communication module; the pressure stabilizing module is used for providing stable power supply voltage for the controller, the pressure detection module is used for detecting flow pressure parameters in the pump body, the sound-light alarm module is used for providing sound-light alarm for workers, the clock module is used for recording detection time nodes corresponding to the detection probes, the communication module is used for the controller to establish wireless communication with an upper computer, and the instruction output module is used for transmitting detection instructions to the detection probes so as to detect the gap distance between the impeller and the inner wall of the pump body.
5. The vertical type fully-adjustable axial flow pump impeller pump body gap detection device according to claim 4, characterized in that: the model STM32F103C8T6 of the controller is characterized in that 64 pins are arranged on the controller, the controller is connected with a voltage stabilizing module through a first pin, a fifth pin and a sixth pin of the controller are connected with a crystal oscillator, a first capacitor, a second capacitor and a third resistor are connected in parallel on the crystal oscillator, and a seventh pin of the controller is grounded through a fourth resistor and a third capacitor which are connected in parallel; the controller is connected with the instruction output module through a fifteen-pin, the controller is connected with the clock module through a sixteen-pin, the controller is connected with the detection probe through a twenty-two-pin, the controller is connected with the pressure detection module through a thirty-pin, the controller is connected with the communication module through a thirty-third-pin and a thirty-fourth-pin, and the controller is connected with the sound and light alarm module through a thirty-eighteen-pin and a thirty-nine-pin.
6. The vertical type fully-adjustable axial flow pump impeller pump body gap detection device according to claim 5, characterized in that: the model of voltage stabilizing module is LM317, is equipped with 3 pins on voltage stabilizing module, is equipped with sixth electric capacity and ninth resistance between voltage stabilizing module's a pin and No. two pins, is equipped with tenth resistance and seventh electric capacity between voltage stabilizing module's No. two pins and No. three pins, voltage stabilizing module's No. three pin links to each other with the pin of controller.
7. The vertical type fully-adjustable axial flow pump impeller pump body gap detection device according to claim 5, characterized in that: the instruction output module comprises a photoelectric coupler, the model of the photoelectric coupler is TLP290, 4 pins are arranged on the photoelectric coupler, a first pin of the photoelectric coupler is connected with the detection probe through a sixth resistor, a seventh resistor and a fourth capacitor are arranged between the first pin and a second pin of the photoelectric coupler, a fifth capacitor and an eighth resistor are arranged between a third pin and a fourth pin of the photoelectric coupler, and the third pin of the photoelectric coupler is connected with a fifteenth pin of the controller; the detection probe is an infrared distance measurement probe, the type of the detection probe is HC-SR505, 3 pins are arranged on the infrared distance measurement probe, and the pin II of the detection probe is connected with the pin twenty-two of the controller; the pressure detection module is a pressure sensor, the type of the pressure sensor is MIK-P300, and the pressure detection module is connected with a thirty-grade pin of the controller through an OUT pin.
8. The vertical type fully-adjustable axial flow pump impeller pump body gap detection device according to claim 5, characterized in that: the clock module is a 555 timer, 8 pins are arranged on the 555 timer, and the 555 timer is connected with a sixteen pin of the controller through a three pin.
9. The vertical type fully-adjustable axial flow pump impeller pump body gap detection device according to claim 5, characterized in that: the model of the communication module is ESP8266, 8 pins are arranged on the communication module, the communication module is connected with thirty-three pins of the controller through four pins, and the communication module is connected with thirty-four pins of the controller through eight pins.
10. The vertical type fully-adjustable axial flow pump impeller pump body gap detection device according to claim 5, characterized in that: the sound and light alarm module comprises a first electromagnetic relay and a second electromagnetic relay, the first electromagnetic relay is electrically connected with the red indicator lamp, and the second electromagnetic relay is electrically connected with the loudspeaker.
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| CN202011493654.4A CN112555168A (en) | 2020-12-17 | 2020-12-17 | Vertical full-adjustable axial flow pump impeller pump body clearance detection device |
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| CN202011493654.4A CN112555168A (en) | 2020-12-17 | 2020-12-17 | Vertical full-adjustable axial flow pump impeller pump body clearance detection device |
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Cited By (1)
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| CN114563269A (en) * | 2022-02-28 | 2022-05-31 | 淄博市产品质量检验研究院 | Axial flow pump detection device and detection method thereof |
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