CN209604227U - Open type cavitation experiment device for water pump - Google Patents
Open type cavitation experiment device for water pump Download PDFInfo
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- CN209604227U CN209604227U CN201822075638.8U CN201822075638U CN209604227U CN 209604227 U CN209604227 U CN 209604227U CN 201822075638 U CN201822075638 U CN 201822075638U CN 209604227 U CN209604227 U CN 209604227U
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Abstract
This application discloses a kind of open type cavitation experiment devices for water pump, are related to pump test equipment.Comprising: pump test pond, motor, import survey pressure branch, outlet survey pressure branch, soft-start cabinet, electrical parameter measuring instrument, speed probe, temperature transmitter and data collection system.Wherein, data collection system is configured to the various data needed for test of the acquisition by pump testing in the case where judging to be stablized by the test data of pump testing.It is preset flow value that discharge branch, which is configured to the flow value by pump testing adjusted, and is remained unchanged.Various data needed for the application acquires test by pump testing in the case where judge to be stablized by the test data of pump testing by data collection system, therefore can be improved using the application the stability of data, further raising test efficiency.The application will be limited to preset flow value by the flow value of pump testing, the adjusting phenomenon of Dragsaw type thus be avoided the occurrence of, therefore can reduce invalid test using the application, to improve test efficiency.
Description
Technical field
This application involves parallel water pump fields, more particularly to a kind of open type cavitation experiment device for water pump.
Background technique
With the fast development of China's manufacturing industry, water pump industry has also obtained significant progress.Water pump manufacturing industry from without to
Have, from small to large, from easy small pump is produced, to powerful water pump is produced, is careless about efficiency from the past, production is high till now
The water pump of efficiency.It is largely to detect whether to reach by testing stand from manufacture is designed into due to pumping this product
The purpose of design, so water pump producer all be unable to do without test installation of pump during designing and manufacturing.
And cavitation experiment is a very important test in testing water pump.Guarantee that water pump can work normally, no
The net positive suction head and the maximum pressure sucted under vacuum state that cavitation phenomenons occur are called critical NPSH and allow to suct true
Pressure under dummy status.And the purpose of cavitation experiment is exactly to find out the critical NPSH of water pump and allow to suct under vacuum state
Pressure.Cavitation experiment is tested by cavitation experiment platform, including open type testing stand and two kinds of closed loop test-bed.Below to open
It is illustrated for formula testing stand:
With the method for changing suction line system resistance on open type testing stand, that is, adjust the method for suction side valve opening
It is tested.It during entire test, needs to read after showing data stabilization, test needs slowly to carry out, usually complete
2~4 hours are generally required at test.Particularly during the test, suction inlet valve is first opened, the case where flow is not achieved
Under, increase the flow of discharge opening valve.But the adjusting phenomenon for never allowing Dragsaw type occur, that is, adjust it is excessive, then recall to come.If
When there is saw phenomenon, it is invalid for current test, it is necessary to reform the cavitation experiment of the operating point.Therefore, there is test in the prior art
The problem of inefficiency.
Utility model content
Aiming to overcome that the above problem or at least being partially solved or extenuate for the application solves the above problems.
This application provides a kind of open type cavitation experiment devices for water pump, for detecting by the performance of pump testing, comprising:
Pump test pond, for storing test water；
Motor provides power by pump testing to be described for being connect with described by pump testing；
Branch is sucked, one end is connected to the pump test pond, and the other end is used for for connecting the entrance by pump testing
The water in the pump test pond is delivered to and described is also used to by pump testing for being connected to or blocking the water in the pump test pond
Test the inlet pressure by pump testing；
Discharge branch, one end are connected to the pump test pond, and the other end is used for for connecting the outlet by pump testing
The water being discharged by pump testing is delivered to the pump test pond, for adjusting the flow by pump testing, and for measuring
The outlet pressure by pump testing；
Soft-start cabinet is connect with the motor, for motor described in soft start；
Electrical parameter measuring instrument is connect with the motor, be configured to measure the voltage of the motor, electric current, power and
Supply frequency；
Speed probe is mounted at the motor, for measuring the revolving speed of the motor；
Temperature transmitter is installed in the pump test pond, for measuring the water temperature in the pump test pond；With
Wherein, data collection system, with the sucking branch, the discharge branch, the electrical parameter measuring instrument, described turn
Fast sensor and the temperature transmitter are connected, and are configured to acquire in the case where judging that the test data by pump testing is stablized
Various data needed for the test by pump testing；
It is preset flow value that the discharge branch, which is configured to the flow value by pump testing adjusted, and guarantees entire test
The preset flow value is constant in the process.
Optionally, the sucking branch includes:
Import pressure-measuring pipe, one end are connected to the pump test pond, and the other end is used for connecting the entrance by pump testing
It is described by pump testing in the water in the pump test pond to be delivered to；
Import gate valve is mounted at the import pressure-measuring pipe, for being connected to or blocking the water in the pump test pond；With
Inlet pressure transmitter is mounted at the import pressure-measuring pipe, for measuring the inlet pressure by pump testing；
Wherein, the outlet of the import gate valve is connected through composite soft tube with the import pressure-measuring pipe at the subject pump intake.
Optionally, the import gate valve and the inlet pressure transmitter are pacified according to described by the water inlet direction sequence of pump testing
At the import pressure-measuring pipe.
Optionally, the discharge branch includes:
Pressure-measuring pipe is exported, one end is connected to the pump test pond, and the other end is used for connecting the outlet by pump testing
In by it is described by pump testing be discharged water be delivered to the pump test pond,
Electric control valve is mounted at the outlet pressure-measuring pipe for adjusting flow, is configured to the subject adjusted
The flow value of pump is preset flow value, and guarantees that the preset flow value is constant during entirely testing；
Electromagnetic flowmeter is mounted at the outlet pressure-measuring pipe；With
Outlet pressure transmitter is mounted at the outlet pressure-measuring pipe, for measuring the outlet pressure by pump testing.
Optionally, the outlet pressure transmitter, the electric control valve and the electromagnetic flowmeter are according to the subject
The drainage direction sequence of pump is mounted at the outlet pressure-measuring pipe.
Optionally, the sucking branch includes import pressure-measuring pipe and installation import gate valve at which and inlet pressure pick-up
Device；
The discharge branch includes the electromagnetic flowmeter exported pressure-measuring pipe and installation at which, electric control valve and outlet pressure
Power transmitter；
The data collection system includes:
PLC controller, with the electromagnetic flowmeter, the electric control valve, the outlet pressure transmitter, the import
Gate valve, the inlet pressure transmitter and temperature transmitter connection, are configured to control the electric control valve, the import
The flow for opening or closing and adjusting the electric control valve of gate valve, be configured to receive measurement the flow, it is described go out
The value of mouth pressure, the inlet pressure and the water temperature；With
Host computer is connected with the electrical parameter measuring instrument, the speed probe and the PLC controller, is configured to adopt
Collect the voltage stablized under data status, electric current, power, supply frequency, revolving speed, flow, outlet pressure, inlet pressure and water temperature
Value；
Wherein, the electrical parameter measuring instrument, the speed probe and the PLC controller pass through corresponding communication and connect
Mouth is connected with the host computer, to transmit data.
Optionally, each communication interface is 485 communication interfaces.
Optionally, the open type cavitation experiment device further includes test platform, for described by pump testing and described electronic
The installation foundation of machine.
The open type cavitation experiment device for water pump of the application, is being judged by data collection system by the test of pump testing
Various data needed for test of the acquisition by pump testing in the case where data stabilization, due to the application without data collector according to
Experience naked eyes judge whether flow is stable, therefore can be improved the stability of data using the application, additionally it is possible to further
Improve test efficiency.The application will be limited through discharge branch flow automatic regulation and by the flow value of pump testing by data collection system
It is scheduled on preset flow value, thus avoids the occurrence of the adjusting phenomenon of Dragsaw type, therefore invalid test can be reduced using the application, from
And improve test efficiency.
According to the accompanying drawings to the detailed description of the specific embodiment of the application, those skilled in the art will be more
Above-mentioned and other purposes, the advantages and features of the application are illustrated.
Detailed description of the invention
Some specific embodiments of the application are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic installation diagram according to the open type cavitation experiment device for water pump of the application one embodiment；
Fig. 2 is the schematic diagram of the data collection system in Fig. 1.
Each symbol indicates that meaning is as follows in figure:
100 open type cavitation experiment devices,
1 pump test pond, 2 temperature transmitters, 3 import gate valves, 4 composite soft tubes, 5 import pressure-measuring pipes, 6 electric control valves, 7
Electromagnetic flowmeter, 8 soft-start cabinets, 9 electrical parameter measuring instruments, 10 outlet pressure transmitters, 11 outlet pressure-measuring pipes, 12 inlet pressures become
Send device, 13 by pump testing, 14 speed probes, 15 motor, 16 test platforms, 17 data collection systems, 18 PLC controllers, and 19
Host computer.
A sucks branch, B discharge branch.
Specific embodiment
Fig. 1 is the schematic installation diagram according to the open type cavitation experiment device for water pump of the application one embodiment.
Fig. 2 is the schematic diagram of the data collection system in Fig. 1.A kind of open type cavitation experiment device 100 for water pump, is used for
Detection generally be may include: pump test pond 1, motor 15, sucking branch A, discharge branch B, soft opened by the performance of pump testing 13
Dynamic cabinet 8, electrical parameter measuring instrument 9, speed probe 14, temperature transmitter 2 and data collection system 17.Wherein, pump test pond 1
For storing test water.Motor 15 provides power by pump testing 13 for being connect with described by pump testing 13, to be described.Sucking branch
One end of road A is connected to the pump test pond 1, and the other end is used for for connecting the entrance by pump testing 13 by the water
The water in pump testing pond 1 is delivered to described to be also used to test by pump testing 13 for being connected to or blocking the water in the pump test pond 1
The inlet pressure by pump testing 13.One end of discharge branch B is connected to the pump test pond 1, and the other end is for connecting institute
It states by the outlet of pump testing 13, it is described for adjusting for the water being discharged by pump testing 13 to be delivered to the pump test pond 1
By the flow of pump testing 13, and for measuring the outlet pressure by pump testing 13.Soft-start cabinet 8 is connect with the motor 15,
For motor 15 described in soft start.Electrical parameter measuring instrument 9 is connect with the motor 15, is configured to measure the motor 15
Voltage, electric current, power and supply frequency.Speed probe 14 is mounted at the motor 15, described electronic for measuring
The revolving speed of machine 15.Temperature transmitter 2 is installed in the pump test pond 1, for measuring water temperature.Wherein, data collection system
17 with the sucking branch A, the discharge branch B, the electrical parameter measuring instrument 9, the speed probe 14 and the temperature
Transmitter 2 is connected, and is configured to acquire in the case where judge the test data stabilization by pump testing 13 described by pump testing 13
Various data needed for test.It is preset flow value that the discharge branch B, which is configured to the flow value by pump testing 13 adjusted,
And the preset flow value is constant during guaranteeing entire test.
Process is tested by pump testing 13, sucking branch A, discharge branch B are connect with by pump testing 13, will by pump testing 13 with it is electronic
Machine 15 connects, and motor 15 is connect with soft-start cabinet 8.The pump test software in data collection system 17 is opened, starts to be tested
The test of pump 13.After " test starting " button of click data acquisition system 17, the control sucking branch of data collection system 17
The work of road A, whether data collection system 17 judges automatically the data tested by pump testing 13 stable, if data it is stable and
And meeting the requirement of pump test standard, automatic collection is tested required various data by pump testing 13.
The open type cavitation experiment device 100 for water pump of the application, is being judged by data collection system 17 by pump testing
13 test data acquires the various data needed for the test of pump testing 13 in the case where stablizing, since the application is adopted without data
Collection personnel judge whether flow is stable according to experience naked eyes, therefore can be improved the stability of data using the application, also
Test efficiency can be further increased.The application is by data collection system 17 through discharge branch B flow automatic regulation and will be by
The flow value of pump testing 13 is limited to preset flow value, thus avoids the occurrence of the adjusting phenomenon of Dragsaw type, therefore use the application energy
It is enough to reduce invalid test, to improve test efficiency.
Specifically, in the present embodiment, the sucking branch A may include: import pressure-measuring pipe 5, import gate valve 3 and inlet-pressure
Power transmitter 12.One end of import pressure-measuring pipe 5 is connected to the pump test pond 1, and the other end is described by pump testing 13 for connecting
Entrance, it is described by pump testing 13 for the water in the pump test pond 1 to be delivered to.Import gate valve 3 is mounted on the import and surveys
At pressure pipe 5, for being connected to or blocking the water in the pump test pond 1.Inlet pressure transmitter 12 is mounted on the import and surveys pressure
At pipe 5, for measuring the inlet pressure by pump testing 13.Wherein, the outlet of the import gate valve 3 is through composite soft tube 4 and institute
It states and is connected by the import pressure-measuring pipe 5 of 13 inlet of pump testing.
More specifically, import pressure-measuring pipe 5 is the pipeline of horizontal direction arrangement, one end is connected to the side wall in pump test pond 1, separately
One end is connected by the entrance of pump testing 13.It is the opening of horizontal direction by the entrance of pump testing 13 in this example.
Specifically, in the present embodiment, the import gate valve 3 and the inlet pressure transmitter 12 are according to described by pump testing 13
Water inlet direction sequence be mounted at the import pressure-measuring pipe 5.Preferably, the inlet pressure transmitter 12 is close to the subject
The entrance arrangement of pump 13.
Specifically, in the present embodiment, the discharge branch B may include outlet pressure-measuring pipe 11, electromagnetic flowmeter 7, electronic
Regulating valve 6 and outlet pressure transmitter 10.One end of outlet pressure-measuring pipe 11 is connected to the pump test pond 1, and the other end is used for
The outlet by pump testing 13 is connected, for the water being discharged by pump testing 13 to be delivered to the pump test pond 1.Electric adjustable
Section valve 6 is mounted at the outlet pressure-measuring pipe 11 for adjusting flow, is configured to the flow value by pump testing 13 adjusted
For preset flow value, and the preset flow value is constant during guaranteeing entire test.For example, can be with preset flow value for 100
Cubic meter, certainly in other embodiments, can also be other preset flow values.Electromagnetic flowmeter 7 is mounted on the outlet and surveys
At pressure pipe 11, for measuring the rate of discharge by pump testing 13.Outlet pressure transmitter 10 is mounted on the outlet pressure-measuring pipe
At 11, for measuring the outlet pressure by pump testing 13.
Specifically, in the present embodiment, the outlet pressure transmitter 10, the electric control valve 6 and the Electromagnetic Flow
Meter 7 is mounted at the outlet pressure-measuring pipe 11 according to described by the drainage direction sequence of pump testing 13.
More specifically, the outlet by pump testing 13 is arranged in vertical.The discharge branch B is integrally in inverted U
Type.The outlet pressure-measuring pipe 11 is along water flowing direction by vertical outlet pressure-measuring pipe, 90 degree of elbows, horizontal outlet pressure-measuring pipe group
At.The discharge branch B may include 90 degree of elbows and return pipe, the outlet pressure-measuring pipe 11 and 90 degree of elbows and return pipe phase
Even.
More specifically, the outlet pressure transmitter 10 is arranged at vertical outlet pressure-measuring pipe and close to described by pump testing
13 outlet arrangement.The electromagnetic flowmeter 7 and the electric control valve 6 are arranged at horizontal outlet pressure-measuring pipe.
Specifically, in the present embodiment, as shown in Fig. 2, the data collection system 17 may include PLC controller 18 and upper
Position machine 19.Wherein, PLC controller 18 and the electric control valve 6, the electromagnetic flowmeter 7, the outlet pressure transmitter
10, the import gate valve 3, the inlet pressure transmitter 12 and the temperature transmitter 2 connect, and are configured to control described electronic
The flow for opening or closing and adjusting the electric control valve 6 of regulating valve 6, the import gate valve 3 is configured to receive measurement
The flow, the outlet pressure, the inlet pressure and the water temperature value.Host computer 19 and the electrical parameter measuring instrument
9, the speed probe 14 and the PLC controller 18 are connected, be configured to acquire voltage under stable data status, electric current,
Power, supply frequency, revolving speed, flow, outlet pressure, inlet pressure and water temperature value.The electrical parameter measuring instrument 9, described turn
Fast sensor 14 and the PLC controller 18 are connected by corresponding communication interface with the host computer 19, to transmit data.
In the present embodiment, each communication interface is 485 communication interfaces.
Specifically, in the present embodiment, the open type cavitation experiment device 100 further includes test platform 16, for described
By pump testing 13 and the installation foundation of the motor 15.
The course of work of open type cavitation experiment device 100 for water pump:
Being mounted on test platform 16 by pump testing 13, sucking branch A is connect with by the entrance of pump testing 13, by the branch that spues
Road B is connect with by the outlet of pump testing 13.It will be connect by pump testing 13 with motor 15, motor 15 will be connect with soft-start cabinet 8.
The pump test software of data collection system 17 is opened, starts to be tested by pump testing 13, the at this moment " import of Testing Software
Pressure " is measured by inlet pressure transmitter 12, and " outlet pressure " is measured by outlet pressure transmitter 10, and " flow " is by Electromagnetic Flow
7 measurement of meter, " water temperature " is measured by temperature transmitter 2, and " motor speed " is measured by speed probe 14, " the electricity of motor 15
Pressure ", " electric current ", " power " " supply frequency " parameter are measured by electrical parameter measuring instrument 9.Inlet pressure, outlet pressure, flow, temperature
Degree is 4-20mA signal, is input in the PLC controller 18 of data collection system 17.Voltage, electric current, power, supply frequency and
Revolving speed is communicated by 485 interfaces and the host computer of data collection system 17 19.
Import gate valve 3 is opened, the water in pump test pond 1 is poured water by import pressure-measuring pipe 5 to by pump testing 13, and soft start is clicked
The start button of cabinet 8, motor 15 must be electric, run by pump testing 13.
After " test starting " button of click data acquisition system 17, PLC controller 18 automatically controls electric control valve 6
It opens, whether host computer 19 judges automatically the data tested by pump testing 13 stable, if data are stable and meet water pump
The requirement of testing standard (GB/T 3216-2016 rotary motive power pumps power performances acceptance and tests 1 grade, 2 grades and 3 grades), automatic collection
Required various data, such as flow, inlet pressure, outlet pressure, revolving speed, temperature, supply frequency, electricity are tested by pump testing 13
Stream, voltage, power of motor etc..
1. determining the operating point that need to be done cavitation experiment by pump testing 13 on the basis of finishing performance test by test pump 13.
2. adjusting Operation Conditions point to the required operating point for doing cavitation experiment.Under normal circumstances, cavitation is done if necessary
When the operating point of test has 3 points or 3 points or more, should sequentially it be carried out since minimum discharge point.
3. one group of group data that above-mentioned each test point is recorded one by one, based on the lift of net positive suction head expression formula and pump
Formula is calculated, the corresponding net positive suction head value of one group of group is calculated separately out.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this Shen
It please the ordinary meaning that is understood of one of ordinary skill in the art.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.In the description of the present application, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in this application.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
The preferable specific embodiment of the above, only the application, but the protection scope of the application is not limited thereto,
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims
Subject to.
Claims (6)
1. a kind of open type cavitation experiment device for water pump, for detecting by the performance of pump testing characterized by comprising
Pump test pond, for storing test water；
Motor provides power by pump testing to be described for being connect with described by pump testing；
Branch is sucked, one end is connected to the pump test pond, and the other end is used for for connecting the entrance by pump testing by institute
The water for stating pump test pond is delivered to described to be also used to test by pump testing for being connected to or blocking the water in the pump test pond
The inlet pressure by pump testing；
Discharge branch, one end are connected to the pump test pond, and the other end is used for for connecting the outlet by pump testing by institute
It states and the pump test pond is delivered to by the water that pump testing is discharged, it is described for adjusting the flow by pump testing, and for measuring
By the outlet pressure of pump testing；
Soft-start cabinet is connect with the motor, for motor described in soft start；
Electrical parameter measuring instrument is connect with the motor, is configured to measure voltage, electric current, power and the power supply of the motor
Frequency；
Speed probe is mounted at the motor, for measuring the revolving speed of the motor；
Temperature transmitter is installed in the pump test pond, for measuring the water temperature in the pump test pond；With
Wherein, data collection system is passed with the sucking branch, the discharge branch, the electrical parameter measuring instrument, the revolving speed
Sensor and the temperature transmitter are connected, and are configured in the case where judging that the test data by pump testing is stablized described in acquisition
Various data needed for test by pump testing；
It is preset flow value that the discharge branch, which is configured to the flow value by pump testing adjusted, and guarantees entire test process
Described in preset flow value it is constant；
The sucking branch includes:
Import pressure-measuring pipe, one end are connected to the pump test pond, and for the other end for connecting the entrance by pump testing, being used for will
The water in the pump test pond is delivered to described by pump testing；
Import gate valve is mounted at the import pressure-measuring pipe, for being connected to or blocking the water in the pump test pond；With
Inlet pressure transmitter is mounted at the import pressure-measuring pipe, for measuring the inlet pressure by pump testing；
Wherein, the outlet of the import gate valve is connected through composite soft tube with the import pressure-measuring pipe at the subject pump intake；
The discharge branch includes:
Pressure-measuring pipe is exported, one end is connected to the pump test pond, and for the other end for connecting the outlet by pump testing, being used for will
The water being discharged by pump testing is delivered to the pump test pond,
Electric control valve is mounted at the outlet pressure-measuring pipe for adjusting flow, and be configured to adjust is described by pump testing
Flow value is preset flow value, and guarantees that the preset flow value is constant during entirely testing；
Electromagnetic flowmeter is mounted at the outlet pressure-measuring pipe, for measuring the rate of discharge by pump testing；With
Outlet pressure transmitter is mounted at the outlet pressure-measuring pipe, for measuring the outlet pressure by pump testing.
2. open type cavitation experiment device according to claim 1, which is characterized in that the import gate valve and the inlet-pressure
Power transmitter is mounted at the import pressure-measuring pipe according to described by the water inlet direction sequence of pump testing.
3. open type cavitation experiment device according to claim 1, which is characterized in that the outlet pressure transmitter, described
Electric control valve and the electromagnetic flowmeter are mounted at the outlet pressure-measuring pipe according to described by the drainage direction sequence of pump testing.
4. open type cavitation experiment device according to claim 1, which is characterized in that the sucking branch includes that pressure is surveyed in import
The import gate valve and inlet pressure transmitter of pipe and installation at which；
The discharge branch includes that the electromagnetic flowmeter, electric control valve and outlet pressure exported pressure-measuring pipe and installation at which becomes
Send device；
The data collection system includes:
PLC controller, with the electromagnetic flowmeter, the electric control valve, the outlet pressure transmitter, the import lock
Valve, the inlet pressure transmitter and temperature transmitter connection, are configured to control the electric control valve, the import lock
The flow for opening or closing and adjusting the electric control valve of valve is configured to receive the flow of measurement, the outlet
The value of pressure, the inlet pressure and the water temperature；With
Host computer is connected with the electrical parameter measuring instrument, the speed probe and the PLC controller, and it is steady to be configured to acquisition
Determine the value of voltage under data status, electric current, power, supply frequency, revolving speed, flow, outlet pressure, inlet pressure and water temperature；
Wherein, the electrical parameter measuring instrument, the speed probe and the PLC controller pass through corresponding communication interface with
The host computer is connected, to transmit data.
5. open type cavitation experiment device according to claim 4, which is characterized in that each communication interface is 485 interfaces.
6. open type cavitation experiment device according to any one of claims 1-5, which is characterized in that further include that test is flat
Platform, for described by pump testing and the installation foundation of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822075638.8U CN209604227U (en) | 2018-12-11 | 2018-12-11 | Open type cavitation experiment device for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822075638.8U CN209604227U (en) | 2018-12-11 | 2018-12-11 | Open type cavitation experiment device for water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604227U true CN209604227U (en) | 2019-11-08 |
Family
ID=68395712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822075638.8U Expired - Fee Related CN209604227U (en) | 2018-12-11 | 2018-12-11 | Open type cavitation experiment device for water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604227U (en) |
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2018
- 2018-12-11 CN CN201822075638.8U patent/CN209604227U/en not_active Expired - Fee Related
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