CN107725404A - Tubular pump station separate type flow measurement control method in hydraulic model test - Google Patents
Tubular pump station separate type flow measurement control method in hydraulic model test Download PDFInfo
- Publication number
- CN107725404A CN107725404A CN201710976721.XA CN201710976721A CN107725404A CN 107725404 A CN107725404 A CN 107725404A CN 201710976721 A CN201710976721 A CN 201710976721A CN 107725404 A CN107725404 A CN 107725404A
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- model
- pump
- water inlet
- outlet passage
- tubular
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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
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
Tubular pump station separate type flow measurement control method in hydraulic model test, it is related to water conservancy experiment field.Model water inlet flow channel, the model outlet passage of separate type are made according to prototype tubular through flow pump, connected between model water inlet flow channel, model outlet passage by external pipeline, circulation power pump is concatenated on external pipeline, so that model water inlet flow channel, model outlet passage, circulation power pump respectively become individual components, the current completed again by circulation power pump between model water inlet flow channel, model outlet passage convey, to realize the simulated test of hydraulic model axial-flow pump pumping plant.All pump assemblys of pumping plant are made individually to be controlled in a model and flow measurement, and it is easy to install quick.
Description
Technical field
The present invention relates to water conservancy to test field, the tubular pump station separate type flow measurement control in specially a kind of hydraulic model test
Method processed.
Background technology
Fig. 2 show the sectional view of prototype tubular pump station, includes the water inlet flow channel 1 and outlet passage 2 of integral structure, enters
Bulb 4 is installed in water flow passage 1 or outlet passage 2, pump installation 3 is installed in bulb 4 and drives what pump installation rotated
Drive mechanism（Not shown in figure）.
In the prior art, the experiment of hydraulic model tubular pump station need to typically take a significant amount of time, funds make model tubular through flow pump
To carry out hydraulic model test research, because every pumping plant there are more set tubular through flow pump, separate unit is needed to cover tubular through flow pump in model test
Unit is controllable, measurable flow, and through-flow pump assembly is because the particularity of its structure, pump installation and water-in and water-out runner combine together,
It is compact-sized, reduced plus model by than chi, model pump assembly it is smaller, every model pump assembly is pressed to be reduced than chi
Manufacturing technology requires high, is also easy to produce error, only can individually control, also can not independent flow measurement, plus hydraulic model test to pumping plant
Requirement to be into and out current similar to prototype, it is unrelated with pump installation, so taking a significant amount of time, funds make model through-flow pump machine
Group is also unnecessary, but solves this problem currently without preferable method, is only capable of, by making model pump assembly, realizing that single pump can
Control, the method that flow is then calculated by surveying its into or out mouth flow velocity meet test requirements document.
Therefore design one kind is succinct, convenient tubular pump station flow measurement control system is just very necessary.
The content of the invention
, can be with it is an object of the invention to provide the tubular pump station separate type flow measurement control method in a kind of hydraulic model test
Effectively solve the problems, such as in background technology.
Realizing the technical scheme of above-mentioned purpose is：Tubular pump station separate type flow measurement control method in hydraulic model test,
It is characterized in that：According to prototype tubular through flow pump make separate type model water inlet flow channel, model outlet passage, model water inlet flow channel,
Connected between model outlet passage by external pipeline, circulation power pump is concatenated on external pipeline so that model water inlet flow channel, mould
Type outlet passage, circulation power pump respectively become individual components, then are gone out by circulation power pump completion model water inlet flow channel, model
Current conveying between water flow passage, to realize the simulated test of hydraulic model axial-flow pump pumping plant.
A kind of test method of new hydraulic model tubular through flow pump pumping plant proposed by the present invention, can by external circulation power pump
Individually controlled with the current to simulation water inlet flow channel and simulation outlet passage, can be in experiment process by flow control valve
In flow is adjusted, flow is monitored by flowmeter, recorded, it is succinct effective, convenient and swift.
Simulation water inlet flow channel, simulation outlet passage and the separation of the structure of circulation power pump and bulb are optimized cloth by the present invention
Put, all pump assemblys of pumping plant is individually controlled in a model and flow measurement, and it is easy to install quick.
Further, the model bulb made by prototype tubular through flow pump is further comprises in model water inlet flow channel and model outlet passage
Body, installation site of the model bulb in model water inlet flow channel, model outlet passage are identical with prototype tubular through flow pump.
Further, model bulb includes the model bulb chorista being arranged in model water inlet flow channel and is arranged on
Model king light foam in model outlet passage.
Further, the regulating valve for Flow-rate adjustment is also serially connected with external pipeline, is easy to realize during experiment
Flow-rate adjustment.
Further, flowmeter is also serially connected with external pipeline, is easy to realize traffic statistics during experiment.
Brief description of the drawings
Fig. 1 is the method schematic of the present invention；
Fig. 2 is the schematic cross-sectional view of prototype tubular pump station pump assembly.
Embodiment
As shown in figure 1, the invention also discloses the tubular pump station separate type flow measurement controlling party in a kind of hydraulic model test
Method, model water inlet flow channel 7, the model outlet passage 8 of separate type are made according to the prototype tubular through flow pump for removing pump installation, is entered in model
The model bulb made by the bulb in prototype tubular through flow pump, model lamp are further comprises in water flow passage 7 and model outlet passage 8
Installation site of the foam 9 in model water inlet flow channel 7, model outlet passage 8 is identical with prototype tubular through flow pump.
Because bulb may be arranged in water inlet flow channel and outlet passage in prototype tubular through flow pump simultaneously, to ensure model
Installation site of the bulb in model water inlet flow channel 7, model outlet passage 8 is identical with prototype tubular through flow pump, it is necessary to model lamp
Foam is separated, and in the present embodiment, model bulb is divided into the model bulb point being arranged in model water inlet flow channel 7
In vitro 9 and the model king light foam 10 that is arranged in model outlet passage 8.
Model water inlet flow channel 7, model outlet passage 8 and bulb chorista 9 in model water inlet flow channel 7,
Model bulb 10 in model outlet passage 8 is water inlet flow channel 1, the outlet passage of archetypal pump pumping plant as shown in Figure 2
2nd, the shape of bulb 4 carries out the diminution of equal proportion.So that the Inlet flow pattern of model water inlet flow channel 7 and tubular pump station water inlet flow channel
Inlet flow pattern is similar, model outlet passage 8 water outlet fluidised form is similar to the water outlet fluidised form of tubular pump station outlet passage.
Test pipe 11 is serially connected between model water inlet flow channel 7 and model outlet passage 8, is serially connected with and follows on test pipe 11
Ring kinetic pump 12 and flow control valve 13, flowmeter 14.
The current completed by circulation power pump 12 between model water inlet flow channel 7, model outlet passage 8 convey, to realize
The simulated test of hydraulic model axial-flow pump pumping plant, specific test method are：Start circulation power pump 12, current are by model feed water flow
Road 7 enters, flowed out successively through circulation power pump 12, flowmeter 14, flow control valve 13, simulation outlet passage 8, in experiment process
In flow can be adjusted by flow control valve 13, flow is measured by flowmeter 14, realized in hydraulic model test single
The control and flow measurement of individual tubular through flow pump, the method is succinctly efficient, and easy to control, experiment reliability height, test accuracy can meet
Hydraulic model code requirement.
More set tubular through flow pump in tubular pump station can be tested as stated above, and detailed process repeats no more.
Claims (5)
1. the tubular pump station separate type flow measurement control method in hydraulic model test, it is characterised in that：According to prototype tubular through flow pump system
Make model water inlet flow channel, the model outlet passage of separate type, pass through external pipeline between model water inlet flow channel, model outlet passage
Connection, circulation power pump is concatenated on external pipeline so that model water inlet flow channel, model outlet passage, circulation power pump respectively into
For individual components, then the current completed by circulation power pump between model water inlet flow channel, model outlet passage convey, to realize
The simulated test of hydraulic model axial-flow pump pumping plant.
2. the tubular pump station separate type flow measurement control method in hydraulic model test, it is characterised in that：In model water inlet flow channel and
Further comprises in model outlet passage by prototype tubular through flow pump make model bulb, model bulb model water inlet flow channel,
Installation site in model outlet passage is identical with prototype tubular through flow pump.
3. tubular pump station separate type flow measurement control method according to claim 2, it is characterised in that：Model bulb includes
The model bulb chorista being arranged in model water inlet flow channel and the model king light foam being arranged in model outlet passage.
4. the tubular pump station separate type flow measurement in hydraulic model test according to claim 1
Control method, it is characterised in that：Regulating valve is also serially connected with external pipeline.
5. the tubular pump station separate type flow measurement in hydraulic model test according to claim 1
Control method, it is characterised in that：Flowmeter is also serially connected with external pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710976721.XA CN107725404B (en) | 2017-10-19 | 2017-10-19 | Tubular pump station separate type flow measurement control method in hydraulic model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710976721.XA CN107725404B (en) | 2017-10-19 | 2017-10-19 | Tubular pump station separate type flow measurement control method in hydraulic model test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725404A true CN107725404A (en) | 2018-02-23 |
| CN107725404B CN107725404B (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710976721.XA Active CN107725404B (en) | 2017-10-19 | 2017-10-19 | Tubular pump station separate type flow measurement control method in hydraulic model test |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115001A (en) * | 2013-01-29 | 2013-05-22 | 南京工业大学 | External characteristic and internal flow measurement test device of molten salt model pump |
| CN104863866A (en) * | 2015-05-25 | 2015-08-26 | 扬州大学 | Excellent-performance upper-lying type axial flow pump device for motor and application method thereof |
| CN104454564B (en) * | 2014-11-10 | 2015-09-02 | 扬州大学 | Based on the axial-flow pump device diffuser hydraulic optimization method of test |
-
2017
- 2017-10-19 CN CN201710976721.XA patent/CN107725404B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115001A (en) * | 2013-01-29 | 2013-05-22 | 南京工业大学 | External characteristic and internal flow measurement test device of molten salt model pump |
| CN104454564B (en) * | 2014-11-10 | 2015-09-02 | 扬州大学 | Based on the axial-flow pump device diffuser hydraulic optimization method of test |
| CN104863866A (en) * | 2015-05-25 | 2015-08-26 | 扬州大学 | Excellent-performance upper-lying type axial flow pump device for motor and application method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 汤方平等: "轴流泵站进出水流道水力损失的试验研究", 《排灌机械》 * |
| 谢荣盛等: "双向竖井贯流泵进出水流道优化研究", 《农业机械学报》 * |
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| Publication number | Publication date |
|---|---|
| CN107725404B (en) | 2019-02-01 |
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