CN109209923A - A kind of testing water pump testing stand of achievable multi-mode operation - Google Patents
A kind of testing water pump testing stand of achievable multi-mode operation Download PDFInfo
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- CN109209923A CN109209923A CN201811123479.2A CN201811123479A CN109209923A CN 109209923 A CN109209923 A CN 109209923A CN 201811123479 A CN201811123479 A CN 201811123479A CN 109209923 A CN109209923 A CN 109209923A
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Classifications
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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
-
- 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
-
- 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
- F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel
-
- 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
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention provides a kind of testing water pump testing stands of achievable multi-mode operation, fluid reservoir, pipe-line system, power-driven system, measuring system and control system, wherein pipe-line system includes inlet pipeline, several parallel bye-pass a, outlet pipeline, several bye-pass b, other pipeline and several bye-pass c, measuring system is used to measure the pressure of flow and pressure and each pump outlet and water inlet on inlet pipeline, and control system is connect with power-driven system and measuring system.Multiple water pumps to be measured are respectively arranged on multiple bye-pass a by the present invention, by bye-pass b by two neighboring bye-pass a connection, and it connect the both ends of multiple bye-pass a with water inlet pipe and water outlet pipe respectively, it can change the connection type of each water pump by adjusting the valve on each bye-pass a and bye-pass b, separate unit operation, series operation and the parallel running of water pump can be achieved, easy switching, it is easy to operate.
Description
Technical field
The present invention relates to testing water pump field more particularly to a kind of testing water pumps of achievable multi-mode operation
Testing stand.
Background technique
Testing water pump experimental bench is the device for being mainly used to test the various performances of water pump, including flow,
Pressure, motor speed, temperature, net positive suction head etc.；Product technology is horizontal, guarantees that product quality is to pass for improving for these data
It is important, thus the testing water pump platform of a superior performance be mainly by tested water pump, pipeline, all kinds of test instrumentations,
The composition such as various kinds of sensors and test software；It is one of test equipment essential to each water pump manufacturer, Research Center, and each
The indispensable experiment device for teaching of the active profession of colleges and universities.
The various performances that traditional testing water pump experimental bench is all directed to separate unit water pump are tested, including immersible pump,
Chemical pump, dredge pump, mixed-flow pump, axial-flow pump etc., and at present in practice, most cases are more water pumps while running, such as
When building water supply, all it is more water pumps while runs.Evidence suggests, entirely possess the operation conditions of the pumping plant of more water pumps with
Separate unit water pump run alone be it is entirely different, the performance of separate unit water pump can not illustrate the operation conditions of entire pumping plant.However
Do not occur the testing stand that can be tested simultaneously more water pumps at present, the pumping plant performance for possessing more water pumps can not
It is tested.
Summary of the invention
It, can be to having in consideration of it, the present invention provides a kind of testing water pump testing stand of achievable multi-mode operation
The pumping plant of more water pumps is tested for the property.
The present invention achieves the above technical objects by the following technical means.
A kind of testing water pump testing stand of achievable multi-mode operation, comprising:
Fluid reservoir, the water storage container as the pilot system；
Pipe-line system, the pipe-line system include:
Inlet pipeline, one end of the inlet pipeline are connect with the fluid reservoir；
Several parallel bye-pass a, the other end of the water inlet pipe is connect with one end of each bye-pass a, to be measured
Water pump and the bye-pass a are corresponded, and are placed on the bye-pass a, the both ends that water pump is corresponded on the bye-pass a are all provided with
There is valve；
Outlet pipeline, one end of the outlet pipeline are connect with the other end of multiple bye-pass a, the outlet pipeline
The other end connect with the fluid reservoir；
Several bye-pass b, the two neighboring bye-pass a pass through a bye-pass b connection, and the one of the bye-pass b
End is connect with the pump outlet on the bye-pass a of front side, on the other end and the rear side bye-pass a of the bye-pass b
Pump intake connection；
Other pipeline, the other pipeline are equipped with the first regulating valve, and one end of the other pipeline is connect with fluid reservoir；
The other end of several bye-pass c, the other pipeline are connect with one end of each bye-pass c, each branch
The second regulating valve is equipped on pipeline c, the end of each bye-pass c is connect with the fluid reservoir；
Wherein it is equipped on the inlet pipeline, bye-pass a, bye-pass b and outlet pipeline for control piper on-off
Valve；
Power-driven system, for driving water pump operation；
Measuring system, for measuring the pressure of the flow on inlet pipeline and pressure and each pump outlet and water inlet
Power；
Control system is connect with the power-driven system and the measuring system, and the control system can control institute
It states power-driven system and is supplied water with the variable-frequency variable-voltage/unsteady flow for realizing water pump.
According to one embodiment of present invention, the measuring system includes:
First distance-transmission pressure gauge is set on the outlet pipeline, for measuring the pressure on the outlet pipeline；
Flow sensor is set on the outlet pipeline, for measuring the flow in the outlet pipeline；
Second distance-transmission pressure gauge is set on the other pipeline, for measuring the pressure of the other pipeline；
Several pressure transmitters, are all provided with that there are two pressure transmitters on each bye-pass a, are located at the two of water pump
End, is respectively used to measure the pressure of corresponding pump outlet and water inlet；
First distance-transmission pressure gauge, flow sensor, the second distance-transmission pressure gauge and several pressure transmitters with control
System connection.
According to one embodiment of present invention, first regulating valve and the second regulating valve are ball valve.
According to one embodiment of present invention, the power-driven system includes motor and frequency converter, the frequency converter with
Motor is connected with control system.
It according to one embodiment of present invention, further include touch screen, the touch screen is connect with the control system.
According to one embodiment of present invention, the liquid level for measuring water level in the fluid reservoir is equipped in the fluid reservoir
Meter, the liquidometer are connect with the control system.
According to one embodiment of present invention, it is additionally provided in the fluid reservoir for measuring fluid temperature in the fluid reservoir
Temperature sensor, the temperature sensor connect with the control system.
It according to one embodiment of present invention, further include vacuum pump, the vacuum pump passes through vacuum pump pipeline and fluid reservoir
Top connection.
Beneficial effects of the present invention:
Multiple water pumps to be measured are respectively arranged on multiple bye-pass a by the present invention, by bye-pass b by two neighboring branch pipe
Road a connection, and it connect the both ends of multiple bye-pass a with water inlet pipe and water outlet pipe respectively, by adjusting each bye-pass a
With the valve on bye-pass b can change each water pump connection type, it can be achieved that the separate unit of water pump run, series operation and simultaneously
Through transport row, easy switching are easy to operate.Meanwhile the present invention leads to multiple bye-pass c and and branch pipe for being equipped with the second regulating valve
Road c is connected to and is equipped with the other pipeline of the first regulating valve to simulate multiple regimen conditions, the actual motion of energy real simulation pumping plant
Situation, test experiments have more authenticity.
Detailed description of the invention
Fig. 1 is a kind of main view of the testing water pump testing stand of achievable multi-mode operation of the embodiment of the present invention.
Fig. 2 is the left view of the water inlet pipe and water outlet pipe of the embodiment of the present invention.
Fig. 3 is the schematic diagram that Fig. 1 overlooks inlet pipeline under visual angle.
Fig. 4 is the schematic diagram that Fig. 1 overlooks visual angle lower discharging tube road.
Appended drawing reference:
1. control system；2. outlet pipeline；3. flow sensor；4. the first distance-transmission pressure gauge；5. the second regulating valve；6. the
Two distance-transmission pressure gauges；7. the first regulating valve；8. fluid reservoir；9. liquidometer；10. vacuum pump pipeline 10；11. vacuum pump；12. water inlet
Pipeline；13. pressure transmitter；14. side pipeline.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
The pump performance of achievable multi-mode operation according to an embodiment of the present invention is specifically described in conjunction with attached drawing first below
It is test bed.
Fig. 1 to 4 is please referred to, testing water pump testing stand according to an embodiment of the present invention includes fluid reservoir 8, pipeline system
System, power-driven system, measuring system and control system 1.
Fluid reservoir 8 is used as the water storage container of pilot system.
Pipe-line system includes inlet pipeline 12, several parallel bye-pass a, outlet pipeline 2, several bye-pass b, other pipeline
14 and several bye-pass c.Specifically, as shown in figure 3, one end of inlet pipeline 12 is connect with fluid reservoir 8, the other end of water inlet pipe
It is connect with one end of each bye-pass a, water pump to be measured and bye-pass a are corresponded, and are placed on bye-pass a；As shown in figure 4,
One end of outlet pipeline 2 is connect with the other end of multiple bye-pass a, and the other end of outlet pipeline 2 is connect with fluid reservoir 8；Fig. 3 and
Fig. 4 is to overlook visual angle, is that bye-pass a disconnects display from k1 in order to clearly see structure clearly, in figure.Two neighboring bye-pass a
By a bye-pass b connection, one end of bye-pass b is connect with the pump outlet on the bye-pass a of front side, bye-pass b's
The other end is connect with the pump intake on rear side bye-pass a；Other pipeline 14 be equipped with the first regulating valve 7, the one of other pipeline 14
End is connect with fluid reservoir 8, and the other end of other pipeline 14 is connect with one end of each bye-pass c, and the is equipped on each bye-pass c
The end of two regulating valves 5, each bye-pass c is connect with fluid reservoir 8, preferably, the first regulating valve 7 and the second regulating valve 5
It is ball valve.Wherein it is equipped on inlet pipeline 12, bye-pass a, bye-pass b and outlet pipeline 2 for control piper on-off
Valve.It can change the connection type of each water pump, it can be achieved that the separate unit of water pump is transported by adjusting the valve on each bye-pass b
Row, series operation and parallel running, easy switching are easy to operate.
Power-driven system, for driving water pump operation.Specifically, including motor and frequency converter, in the control of control system 1
Under system, the revolving speed of motor can change by changing the frequency of motor connecting with water pump, and then the variable-frequency variable-voltage of realization water pump/
Unsteady flow supplies water.
Measuring system, for measuring the flow on inlet pipeline 12 and pressure and each pump outlet and water inlet
Pressure；Specifically, including the first distance-transmission pressure gauge 4, flow sensor 3, the second distance-transmission pressure gauge 6 and several pressure transmitters
13, the first distance-transmission pressure gauge 4 is set on the outlet pipeline 2, for measuring the pressure on the outlet pipeline 2；Flow sensing
Device 3 is set on the outlet pipeline 2, for measuring the flow in the outlet pipeline 2；Second distance-transmission pressure gauge 6 is set to described
On other pipeline 14, for measuring the pressure of the other pipeline 14；Pressure transmitter there are two being all provided on each bye-pass a
13, the both ends of water pump are located at, are respectively used to measure the pressure of corresponding pump outlet and water inlet.
Control system 1, the first distance-transmission pressure gauge 4, flow sensor 3, the second distance-transmission pressure gauge 6, several pressure transmitters
13 connect with frequency converter with control system 1.Control system 1 can be according to the first distance-transmission pressure gauge 4, flow sensor 3, second
The signal that distance-transmission pressure gauge 6 and several pressure transmitters 13 transmit, control power-driven system with realize the variable-frequency variable-voltage of water pump/
Unsteady flow supplies water.Preferably, control system 1 is connect with touch screen, to show the parameter of each sensor, and staff's energy
Enough it is manually entered parameter.
Multiple water pumps to be measured are respectively arranged on multiple bye-pass a by the present invention, by bye-pass b by two neighboring branch pipe
Road a connection, and it connect the both ends of multiple bye-pass a with inlet pipeline 12 and outlet pipeline 2 respectively, by adjusting each branch pipe
Valve on road a and bye-pass b can change the connection type of each water pump, it can be achieved that the separate unit of water pump run, series operation
And parallel running, easy switching are easy to operate.Meanwhile the present invention lead to multiple bye-pass c for being equipped with the second regulating valve 5 and
Be connected to bye-pass c and be equipped with the other pipeline 14 of the first regulating valve 7 come simulate it is multiple use regimen conditions, can real simulation pumping plant
Actual operating state, test experiments have more authenticity.
Preferably, being equipped in fluid reservoir 8 for measuring the liquidometer 9 of water level in fluid reservoir 8 and for measuring fluid reservoir 8
The temperature sensor of interior fluid temperature, liquidometer 9 and temperature sensor are connect with control system 1, can be seen by touch screen
The water level and temperature conditions in fluid reservoir 8 are measured, is made adjustment in time convenient for staff for different operating conditions.
Preferably, the top of fluid reservoir 8 is connect by 11 pipeline 10 of vacuum pump with vacuum pump 11, it can be used for the reality that cavitates
It tests.
Below for possessing the testing stand that the pumping plant of two water pumps is tested, illustrate the working principle of the invention:
Water inlet main line is DN50, and water outlet main road DN40, bye-pass a, bye-pass b and bye-pass c are DN32, other
Pipeline 14 is DN15, above-mentioned all stainless steel parts, pressure-resistant 1.6MPa.Water pump A is set on the bye-pass a of front side, water
Pump B is set on the bye-pass a of rear side, and the valve of close inlet pipeline 12 is valve E on the bye-pass a of rear side, close to water outlet
The valve of pipeline 2 is valve G, and the valve of close outlet pipeline 2 is valve H, inlet pipeline 12 and water outlet on the bye-pass a of rear side
Valve on pipeline 2 is respectively valve C and valve D.
Usually valve C and valve D are normally opened, close in pipe-line system maintenance.Valve E and valve F is the water inlet control of B pump
Valve, can only one open-one close, cannot simultaneously close off and open.Valve G and valve H is the outlet water control valve door of two water pumps, together
When closing, cannot be discharged, outlet pipeline 2 not there are flowing out.
Water pump A, the independent water supply pattern of water pump B:
Valve F is closed, valve E is opened, when closing valve G, Open valve H, realizes that pump A individually supplies water.
Valve F is closed, valve E is opened, when closing valve H, Open valve G, realizes that pump B individually supplies water.
Water pump A, water pump B paralleling model
Valve F is closed, valve E, valve G, valve H are opened, at this point, water pump A, water pump B individually fetch water from fluid reservoir 8,
Water pump A and water pump B realizes in parallel.
Water pump A, water pump B series model
Close valve E and valve H, open valve F and valve G, at this point, water pump B from the outlet of water pump A fetch water, water pump A and
Water pump B realizes series connection.
Other pipeline 14 and bye-pass c are used for analog subscriber water, and the second regulating valve 5 on bye-pass c is common for simulating
With water spot, the first regulating valve 7 on other pipeline 14 least utilizes water spot for simulating.
The first regulating valve 7 and the second regulating valve 5 are closed, when equivalent adjusts the aperture of 2 valve D of outlet pipeline, outlet pipeline 2
The reading of first distance-transmission pressure gauge 4 of the front end valve D will change, and data are transferred to control system 1, according to default,
Water pump water supply will be adjusted by the frequency for adjusting pump motor, to guarantee to export water pressure invariableness, realizes that constant pressure frequency conversion supplies water.
When opening other 14 first regulating valve 7 of pipeline, with the opening and closing of two the second regulating valves 5, the second teletransmission
The indicating value of pressure gauge 6 will change.Data are transferred to control system 1, will be by adjusting pump motor according to default
Frequency adjusts water pump water supply and pressure of supply water, and the indicating value to guarantee the second distance-transmission pressure gauge 6 is constant, guarantees least to utilize water spot
Hydraulic pressure and flow it is constant, realize variable flow and variable pressure supply water.
A kind of testing water pump testing stand of achievable multi-mode operation of the invention, can carry out water pump basic nature simultaneously
Energy experiment, Comprehensive Experiment and innovative experiment, can be applied to impart knowledge to students, can be while tamping student basis, moreover it is possible to open up student
The visual field and to further increase student innovation ability have biggish demonstration effect.
Embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, without departing substantially from
In the case where substantive content of the invention, any conspicuous improvement, replacement or change that those skilled in the art can make
Type all belongs to the scope of protection of the present invention.
Claims (8)
1. a kind of testing water pump testing stand of achievable multi-mode operation characterized by comprising
Fluid reservoir, the water storage container as the pilot system；
Pipe-line system, the pipe-line system include:
Inlet pipeline, one end of the inlet pipeline are connect with the fluid reservoir；
Several parallel bye-pass a, the other end of the water inlet pipe are connect with one end of each bye-pass a, water pump to be measured
It corresponds, is placed on the bye-pass a, the both ends that water pump is corresponded on the bye-pass a are equipped with valve with the bye-pass a
Door；
Outlet pipeline, one end of the outlet pipeline are connect with the other end of multiple bye-pass a, the outlet pipeline it is another
One end is connect with the fluid reservoir；
Several bye-pass b, the two neighboring bye-pass a pass through a bye-pass b connection, one end of the bye-pass b with
Pump outlet connection on the bye-pass a of front side, the other end and the water on the rear side bye-pass a of the bye-pass b
The connection of pump water inlet mouth；
Other pipeline, the other pipeline are equipped with the first regulating valve, and one end of the other pipeline is connect with fluid reservoir；
The other end of several bye-pass c, the other pipeline are connect with one end of each bye-pass c, each bye-pass c
On be equipped with the second regulating valve, the end of each bye-pass c is connect with the fluid reservoir；
The valve for control piper on-off is wherein equipped on the inlet pipeline, bye-pass a, bye-pass b and outlet pipeline；
Power-driven system, for driving water pump operation；
Measuring system, for measuring the pressure of the flow on inlet pipeline and pressure and each pump outlet and water inlet；
Control system is connect with the power-driven system and the measuring system, and the control system can control described dynamic
Power-driven system is supplied water with the variable-frequency variable-voltage/unsteady flow for realizing water pump.
2. the testing water pump testing stand of achievable multi-mode operation according to claim 1, which is characterized in that described
Measuring system includes:
First distance-transmission pressure gauge is set on the outlet pipeline, for measuring the pressure on the outlet pipeline；
Flow sensor is set on the outlet pipeline, for measuring the flow in the outlet pipeline；
Second distance-transmission pressure gauge is set on the other pipeline, for measuring the pressure of the other pipeline；
Several pressure transmitters, are all provided with that there are two pressure transmitters on each bye-pass a, are located at the both ends of water pump,
It is respectively used to measure the pressure of corresponding pump outlet and water inlet；
First distance-transmission pressure gauge, flow sensor, the second distance-transmission pressure gauge and several pressure transmitters are and control system
Connection.
3. the testing water pump testing stand of achievable multi-mode operation according to claim 1, which is characterized in that described
First regulating valve and the second regulating valve are ball valve.
4. the testing water pump testing stand of achievable multi-mode operation according to claim 1, which is characterized in that described
Power-driven system includes motor and frequency converter, and the frequency converter is connect with motor and control system.
5. the testing water pump testing stand of achievable multi-mode operation according to claim 1, which is characterized in that also wrap
Touch screen is included, the touch screen is connect with the control system.
6. the testing water pump testing stand of achievable multi-mode operation according to claim 1, which is characterized in that described
The liquidometer for measuring water level in the fluid reservoir is equipped in fluid reservoir, the liquidometer is connect with the control system.
7. the testing water pump testing stand of achievable multi-mode operation according to claim 6, which is characterized in that described
The temperature sensor for measuring fluid temperature in the fluid reservoir, the temperature sensor and the control are additionally provided in fluid reservoir
System connection processed.
8. the testing water pump testing stand of achievable multi-mode operation according to claim 1, which is characterized in that also wrap
Vacuum pump is included, the vacuum pump is connected by the top of vacuum pump pipeline and fluid reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123479.2A CN109209923A (en) | 2018-09-26 | 2018-09-26 | A kind of testing water pump testing stand of achievable multi-mode operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123479.2A CN109209923A (en) | 2018-09-26 | 2018-09-26 | A kind of testing water pump testing stand of achievable multi-mode operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109209923A true CN109209923A (en) | 2019-01-15 |
Family
ID=64981745
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811123479.2A Pending CN109209923A (en) | 2018-09-26 | 2018-09-26 | A kind of testing water pump testing stand of achievable multi-mode operation |
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| Country | Link |
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| CN (1) | CN109209923A (en) |
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| CN114483560A (en) * | 2022-01-11 | 2022-05-13 | 三峡大学 | Water pump comprehensive experiment platform for teaching |
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Application publication date: 20190115 |