CN205260355U - Axial force test system of vertical canned motor pump - Google Patents
Axial force test system of vertical canned motor pump Download PDFInfo
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- CN205260355U CN205260355U CN201521105490.8U CN201521105490U CN205260355U CN 205260355 U CN205260355 U CN 205260355U CN 201521105490 U CN201521105490 U CN 201521105490U CN 205260355 U CN205260355 U CN 205260355U
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Abstract
The utility model provides an axial force test system of vertical canned motor pump, including pump case, impeller, upper portion flywheel assembly, rotor, stator, journal bearing, thrust bearing, lower part flywheel assembly, detection device, upper portion flywheel assembly and lower part flywheel assembly are connected with the rotor, and the rotor passes through the bearing to be connected with the pump case, and detection device is a plurality of piezoceramics formula sensors, and piezoceramics formula sensor is inlayed in thrust bearing's thrust shoe. The utility model discloses the measurement of the axial force of vertical canned motor pump can be realized, reference data is provided for the axial thrust bearing's of vertical canned motor pump design and optimization and life's prediction.
Description
Technical field
The utility model belongs to field of mechanical technique, particularly a kind of Research on Testing System of Thrust on Aluminum of vertical shield pump.
Background technology
Vertical shield pump belongs to without leakage centrifugal pump, and its bearing is water cooling lubricated type thrust bearing, and noise is very low, thisEnvironment-friendly type water pump is applied more and more widely. The use field of this pump relate to used in nuclear power station core cascade screen electric pump, fromCome multiple fields such as water-pressurization system, heat supply heating circulation, the front fuel adding of space flight rocket launching. The use of this pumpLife-span depends primarily on the service life of thrust bearing. And can thrust bearing normally use, depend on the axial force that it bearsSize and the wearability of itself. Vertical shield pump comprises rotor, impeller and main shaft etc. because its thrust bearing is bearingWhole axial forces in certainly the focusing on of parts, belong to weak, fragile parts. At Overhaul site, vertical shield pump is shut down maintenanceEtc. the generation of fault, major part is because axial force is excessive or thrust bearing wearing destruction causes. Therefore, measure accuratelyThe suffered axial force of thrust bearing in vertical shield pump, is used the longevity by contributing to improve the reliability of vertical shield pump and extendLife, has extremely important realistic meaning.
Summary of the invention
Goal of the invention:
The utility model object is to provide a kind of Research on Testing System of Thrust on Aluminum of vertical shield pump, solves existing vertical shieldingThe axial force of pump is difficult to the problem of test, solves and is difficult to design and the problem of improving the thrust bearing in vertical shield pump, for verticalThe design of the thrust bearing in formula canned motor pump and improvement provide reliably and technical parameter accurately.
Technical scheme:
A Research on Testing System of Thrust on Aluminum for vertical shield pump, comprises bracing frame, pump case, impeller, top flywheel assembly, bottomFlywheel assembly, rotor and checkout gear, is characterized in that: the upper end of pump case is connected with bracing frame, impeller, top flywheel assembly andBottom flywheel assembly is arranged in pump case, between having between impeller, top flywheel assembly and bottom flywheel assembly and pump housing endophragmGap; Top flywheel assembly and bottom flywheel assembly and top journal bearing and bottom journal bearing are separately positioned on two of rotorEnd; The two ends of rotor are connected with the inwall of pump case with bottom journal bearing by top journal bearing respectively; Rotor exterior is provided withStator component; Between bottom journal bearing and bottom flywheel assembly, be provided with thrust bearing, checkout gear is for being arranged on thrust bearingInterior piezoelectric ceramic type sensor.
Piezoelectric ceramic type sensor is embedded on the thrust pad of thrust bearing.
Piezoelectric ceramic type sensor is 8, and 8 piezoelectric ceramic type sensors are embedded in 8 thrust pads of thrust bearingIn.
Top flywheel assembly is connected with rotor by key with bottom flywheel assembly.
The upper end of pump case is connected with bracing frame suspension type by ring flange.
Test macro also comprises the data gathering system for the measured value of piezoelectric ceramic type sensor is collected, numberBe connected with piezoelectric ceramic type sensor according to gathering system.
Advantage and effect:
The Research on Testing System of Thrust on Aluminum of this vertical shield pump of the utility model and method, tool has the following advantages and has a beneficial effectReally:
The Research on Testing System of Thrust on Aluminum of vertical shield pump of the present utility model can be realized rotor and the rotor of vertical canned motor pumpOn the assembly real-time axial force of bearing test, and can obtain axial force, be the thrust bearing in vertical shield pumpDesign and optimization reliable reference data is provided.
The Research on Testing System of Thrust on Aluminum of vertical shield pump of the present utility model can be collected the vertical shield pump under each operating modeIn the real time data of the suffered axial force of thrust bearing.
Brief description of the drawings:
Fig. 1 is the axial force data gathering system of vertical shield pump of the present utility model and the structural representation of test macroFigure.
Fig. 2 is the structural representation of the Research on Testing System of Thrust on Aluminum of vertical shield pump of the present utility model.
Fig. 3 is the part sectioned view of the Research on Testing System of Thrust on Aluminum of vertical shield pump of the present utility model.
Fig. 4 is the part-structure schematic diagram of the Research on Testing System of Thrust on Aluminum of vertical shield pump of the present utility model.
Description of reference numerals:
1-bracing frame, 2-pump case, 3-impeller, 4-heat shield assembly, the upper flywheel assembly of 5-, 6-top journal bearing, 7-turnsSon, 8-stator, 9-bottom journal bearing, 10-thrust bearing, flywheel assembly under 11-, 12-thrust pad, 13-piezoelectric ceramic typeSensor.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described further:
As Figure 1-Figure 4, the utility model provides a kind of Research on Testing System of Thrust on Aluminum of vertical shield pump to comprise supportFrame 1, pump case 2, impeller 3, top flywheel assembly 5, bottom flywheel assembly 11, rotor 7 and checkout gear, is characterized in that: pump case 2Upper end be connected with bracing frame 1, impeller 3, top flywheel assembly 5 and bottom flywheel assembly 11 are arranged in pump case 2, impeller 3, onBetween portion's flywheel assembly 5 and bottom flywheel assembly 11 and pump case 2 inwalls, there is gap; Top flywheel assembly 5 and bottom flywheel groupPart 11 and top journal bearing 6 and bottom journal bearing 9 are separately positioned on the two ends of rotor 7; The two ends of rotor 7 are respectively by upperPortion's journal bearing 6 is connected with the inwall of pump case 2 with bottom journal bearing 9; Rotor 7 outsides are provided with stator component 8; Bottom radial axleHold 9 and bottom flywheel assembly 11 between be provided with thrust bearing 10, checkout gear is the piezoelectric ceramics being arranged in thrust bearing 10Formula sensor 13.
Piezoelectric ceramic type sensor 13 is embedded on the thrust pad 12 of thrust bearing 10. Be arranged on optimum stress point, energyMore accurately measure more really suffered axial force. And easy operating is installed simply.
Piezoelectric ceramic type sensor 13 is 8, and 8 piezoelectric ceramic type sensors 13 are embedded in 8 of thrust bearing 10 and push awayIn power tile fragment 12.
Top flywheel assembly 5 is connected with rotor 7 by key with bottom flywheel assembly 11.
The upper end of pump case 2 is connected with bracing frame 1 suspension type by ring flange. This connected mode conforms to operating mode, more hasBe beneficial to measurement To Axial Force Needed.
Test macro also comprises the data gathering system for the measured value of piezoelectric ceramic type sensor is collected, numberBe connected with piezoelectric ceramic type sensor 13 according to gathering system.
Between pump and motor, be provided with the heat shield assembly 4 being connected with pump case 2 inside.
The method of carrying out axial force testing with the Research on Testing System of Thrust on Aluminum of above-mentioned vertical shield pump, is characterized in that: the partyMethod step is as follows:
A., when rotor part is static, piezoelectric ceramic type sensor is embedded on the thrust pad of thrust bearing, thrust bearingBe subject to the Action of Gravity Field power of rotor part, this Action of Gravity Field power is delivered on piezoelectric ceramic type sensor, thereby measures quietThe only suffered axial force G1 of situation lower thrust-bearing, the axial force that G1 thrust bearing when static bears;
B. start shielded motor, reach before rated speed at shielded motor rotating speed, shielded motor drivesRotor part rotation, in rotary course, thrust bearing, in being subject to the Action of Gravity Field power of rotor part, has also been subject to floatingPower, impeller front and rear cover plate pressure differential etc. and the axial force of sensing suction eye that produces and liquid flow through impeller inlet and outletThe direction dynamical reaction on impeller that acts on causing that changes; The suffered axial force of thrust bearing is passed through piezoelectric ceramic type sensingDevice, thus measure the suffered axial force G2 of thrust bearing, the G2 axial force that thrust bearing bears during for pump startup;
C. when vertical shield pump normally moves, the rotating speed of pump is 1500rpm, and in running, thrust bearing is being subject toWhen the Action of Gravity Field power of rotor part, buoyancy, impeller front and rear cover plate pressure differential etc. are also subject to and the sensing impeller that producesThe axial force of suction inlet and liquid impeller inlet and the Way out dynamical reaction on impeller that acts on causing that changes of flowing through;The suffered axial force of thrust bearing is passed through piezoelectric ceramic type sensor, thereby measures the suffered axial force G3 of thrust bearing,G3 during for pump operation described in the axial force that bears of thrust bearing;
D. close shielded motor, top flywheel assembly and bottom flywheel assembly drive rotor jointly, and produceRaw running down phenomenon, in rotary course, thrust bearing, in being subject to the Action of Gravity Field power of rotor part, has also been subject to floatingPower, impeller front and rear cover plate pressure differential etc. and the axial force of sensing suction eye that produces and liquid flow through impeller inlet and outletThe direction dynamical reaction on impeller that acts on causing that changes; The suffered axial force of thrust bearing is passed through piezoelectric ceramic type sensingDevice, thus measure the suffered axial force G4 of thrust bearing, G4 during for pump dead electricity described in the axial work that bears of thrust bearingFirmly.
The Research on Testing System of Thrust on Aluminum of vertical shield pump of the present utility model can be realized rotor and the rotor of vertical canned motor pumpOn the assembly real-time axial force of bearing test, and can obtain maximum axial force, be the thrust in vertical shield pumpThe design and optimization of bearing provides reliable reference data; The axial-force testing device of vertical shield pump of the present utility model canTo collect the real time data of the suffered axial force of thrust bearing in the vertical shield pump under each operating mode.
Embodiment 1
Refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the Research on Testing System of Thrust on Aluminum of vertical shield pump of the present utility model, comprises pumpShell 2, impeller 3, top flywheel assembly 5, bottom flywheel assembly 11, rotor 7, checkout gear. Top flywheel assembly 5 and bottom flywheelThe mode that assembly 11 connects by key is respectively connected on rotor 7. The two ends of rotor 7 respectively by top journal bearing 6 and underPortion's journal bearing 9 is connected with the inwall of pump case 2, and impeller 3, top flywheel assembly 5 and bottom flywheel assembly 11 are arranged on pump case 2In, gapped between top flywheel assembly 5, bottom flywheel assembly 11 and impeller 3 and pump case 2 inwalls. Method is passed through in the upper end of pump case 2Blue dish is connected with bracing frame 1 suspension type. Checkout gear piezoelectric ceramic type sensor 13 is embedded in the thrust pad of thrust bearing 10On 12.
In the present embodiment, piezoelectric ceramic type sensor is 8, and 8 piezoelectric ceramic type sensors are embedded in respectively thrustOn 8 thrust pads 12 of bearing.
In the present embodiment, also comprise data gathering system, Data Collection is connected with piezoelectric ceramic type sensor, and data are receivedCollecting system is for carrying out real-time collection to the measured value of piezoelectric ceramic type sensor.
The method of testing of above-mentioned test macro, step is as follows:
A. each parts are installed according to the annexation of embodiment 1, when stationary rotor, piezoelectric ceramic type sensor edgeBe embedded on the thrust pad of thrust bearing, thrust bearing has been subject to the Action of Gravity Field of the rotor parts such as impeller, stator, flywheel assemblyPower, this Action of Gravity Field power is delivered on piezoelectric ceramic type sensor, thus it is suffered to measure static situation lower thrust-bearingAxial force G1, the axial force that G1 thrust bearing when static bears, thus complete transmission and the test of axial force when static;
B. start shielded motor, in 30 minutes that start after shielded motor, shielded motor drives and turnsSon rotation, in rotary course, buoyancy, impeller front and rear cover plate pressure differential etc. and the axial force of the sensing suction eye that produces, liquidBody impeller inlet and the Way out dynamical reaction on impeller that acts on causing that changes of flowing through, thus thrust axis is bornTo the effect of axial force, this axial force also comprises the Action of Gravity Field power of itself; The suffered axial force of thrust bearing is passed through piezoelectricityCeramic-type sensor, thus measure the suffered axial force G2 of thrust bearing, and thrust bearing bears G2 during for pump startupAxial force, thereby the transmission of axial force and test startup stage of completing;
C. when vertical shield pump normally moves, the rotating speed of pump is 1500rpm, and in running, thrust bearing is being subject toWhen the Action of Gravity Field power of the rotor parts such as impeller, stator, flywheel assembly, buoyancy, impeller front and rear cover plate pressure are also subject toFlow through impeller inlet and Way out of the axial force of poor grade and the sensing suction eye that produces and liquid changes and causesAct on the dynamical reaction on impeller; The suffered axial force of thrust bearing is passed through piezoelectric ceramic type sensor, thereby measures thrustThe axial force G3 that bearing is suffered, the G3 axial force that thrust bearing bears during for pump operation, thus complete normal operationTime axial force transmission and test;
D. close shielded motor, top flywheel assembly and bottom flywheel assembly drive rotor jointly, and produceGiven birth to running down phenomenon, in rotary course, thrust bearing is done at the gravity that is subject to the rotor parts such as impeller, stator, flywheel assemblyFirmly time, be also subject to buoyancy, impeller front and rear cover plate pressure differential etc. and the axial force of the sensing suction eye that produces andLiquid impeller inlet and the Way out dynamical reaction on impeller that acts on causing that changes of flowing through; The axle that thrust bearing is sufferedPass through piezoelectric ceramic type sensor to power, thereby measure the suffered axial force G4 of thrust bearing, thrust when G4 is pump dead electricityThe axial force that bearing bears, thereby the transmission of axial force and test while completing dead electricity; Data gathering system can be to piezoelectricityEach phase measuring value of ceramic sensor element is carried out real-time collection, is the design and optimization of the thrust bearing in vertical shield pumpReliable reference data is provided.
In the present embodiment, while vertical shield pump being changed to the vertical pump of other structural similarities such as core main pump, applicable equally.
Claims (6)
1. a Research on Testing System of Thrust on Aluminum for vertical shield pump, comprises bracing frame (1), pump case (2), impeller (3), top flywheel groupPart (5), bottom flywheel assembly (11), rotor (7) and checkout gear, is characterized in that: the upper end of pump case (2) and bracing frame (1)Connect, impeller (3), top flywheel assembly (5) and bottom flywheel assembly (11) are arranged in pump case (2), and impeller (3), top flyBetween wheel assembly (5) and bottom flywheel assembly (11) and pump case (2) inwall, there is gap; Top flywheel assembly (5) and bottom flyWheel assembly (11) and top journal bearing (6) and bottom journal bearing (9) are separately positioned on the two ends of rotor (7); Rotor (7)Two ends are connected with the inwall of pump case (2) with bottom journal bearing (9) by top journal bearing (6) respectively; Establish rotor (7) outsideThere is stator component (8); Between bottom journal bearing (9) and bottom flywheel assembly (11), be provided with thrust bearing (10), checkout gearFor being arranged on the piezoelectric ceramic type sensor (13) in thrust bearing (10).
2. the Research on Testing System of Thrust on Aluminum of vertical shield pump according to claim 1, is characterized in that: piezoelectric ceramic type sensingDevice (13) is embedded on the thrust pad (12) of thrust bearing (10).
3. the Research on Testing System of Thrust on Aluminum of vertical shield pump according to claim 2, is characterized in that: piezoelectric ceramic type sensingDevice (13) is 8, and 8 piezoelectric ceramic type sensors (13) are embedded in 8 thrust pads (12) of thrust bearing (10).
4. the Research on Testing System of Thrust on Aluminum of vertical shield pump according to claim 1, is characterized in that: top flywheel assembly(5) be connected with rotor (7) by key with bottom flywheel assembly (11).
5. the Research on Testing System of Thrust on Aluminum of vertical shield pump according to claim 1, is characterized in that: the upper end of pump case (2)Be connected with bracing frame (1) suspension type by ring flange.
6. the Research on Testing System of Thrust on Aluminum of vertical shield pump according to claim 1, is characterized in that: test macro also comprisesFor data gathering system, data gathering system and piezoelectric ceramic type that the measured value of piezoelectric ceramic type sensor is collectedSensor (13) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105490.8U CN205260355U (en) | 2015-12-28 | 2015-12-28 | Axial force test system of vertical canned motor pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105490.8U CN205260355U (en) | 2015-12-28 | 2015-12-28 | Axial force test system of vertical canned motor pump |
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| CN205260355U true CN205260355U (en) | 2016-05-25 |
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| CN201521105490.8U Active CN205260355U (en) | 2015-12-28 | 2015-12-28 | Axial force test system of vertical canned motor pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465003A (en) * | 2015-12-28 | 2016-04-06 | 沈阳鼓风机集团核电泵业有限公司 | Axial force testing system and method for vertical shielding pump |
| CN106286379A (en) * | 2016-08-26 | 2017-01-04 | 长沙佳能通用泵业有限公司 | Pump axial force on-line measurement device and method |
| CN106907337A (en) * | 2017-05-10 | 2017-06-30 | 沈阳工业大学 | The Research on Testing System of Thrust on Aluminum and method of canned motor pump |
| CN110793696A (en) * | 2019-12-10 | 2020-02-14 | 湖南崇德工业科技有限公司 | Axial load measuring device and method for rotating equipment |
-
2015
- 2015-12-28 CN CN201521105490.8U patent/CN205260355U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465003A (en) * | 2015-12-28 | 2016-04-06 | 沈阳鼓风机集团核电泵业有限公司 | Axial force testing system and method for vertical shielding pump |
| CN105465003B (en) * | 2015-12-28 | 2017-06-06 | 沈阳鼓风机集团核电泵业有限公司 | The Research on Testing System of Thrust on Aluminum and method of vertical shield pump |
| CN106286379A (en) * | 2016-08-26 | 2017-01-04 | 长沙佳能通用泵业有限公司 | Pump axial force on-line measurement device and method |
| CN106286379B (en) * | 2016-08-26 | 2019-03-05 | 长沙佳能通用泵业有限公司 | Pump axial force on-line measurement device and method |
| CN106907337A (en) * | 2017-05-10 | 2017-06-30 | 沈阳工业大学 | The Research on Testing System of Thrust on Aluminum and method of canned motor pump |
| CN110793696A (en) * | 2019-12-10 | 2020-02-14 | 湖南崇德工业科技有限公司 | Axial load measuring device and method for rotating equipment |
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