CN107806423B - Reversible passage pumping plant separate type flow measurement control method in hydraulic model test - Google Patents
Reversible passage pumping plant separate type flow measurement control method in hydraulic model test Download PDFInfo
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- CN107806423B CN107806423B CN201710998056.4A CN201710998056A CN107806423B CN 107806423 B CN107806423 B CN 107806423B CN 201710998056 A CN201710998056 A CN 201710998056A CN 107806423 B CN107806423 B CN 107806423B
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- Prior art keywords
- reversible passage
- passage
- model
- pumping plant
- reversible
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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)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Reversible passage pumping plant separate type flow measurement control method in hydraulic model test is related to water conservancy test field.Model reversible passage is made according to the prototype reversible passage pumping plant of removal pump assembly, simulation spacer body and spacing block are provided in model reversible passage, simulation spacer body and spacing block, which separate model reversible passage, is independent disconnected upper layer outlet passage and lower layer's water inlet flow channel, external test pipeline is connected between upper layer outlet passage and lower layer's water inlet flow channel, external developmental tube road is serially connected with circulation power pump, the water flow conveying for completing model reversible passage is pumped, by circulation power to realize the simulation test of hydraulic model reversible passage pumping plant.The present invention can complete the test of hydraulic model two-way pump station well, preferred arrangement is separated by the structure between reversible passage and circulation power pump, make all each units of reversible passage pumping plant in a model and can individually control and flow measurement, and is easy to install and use quick.
Description
Technical field
It is two-way in specially a kind of hydraulic model test the present invention relates to water conservancy test field
Runner pumping plant separate type flow measurement control method.
Background technique
Fig. 2 show the schematic diagram of prototype reversible passage pump pumping plant, including reversible passage 2, is provided in reversible passage 2 point
Reversible passage 2 is divided into upper layer outlet passage 4 and lower layer's water inlet flow channel 5 by spacer 3, and the middle part of spacer body 3 is equipped with pump assembly
1, upper lock gate 6 and tail gates 7 are respectively arranged between the both ends and reversible passage 2 of spacer body 3.
In the prior art, the test of simulation reversible passage pumping plant need to generally take a significant amount of time in hydraulic model, funds make
Model pump assembly carries out model investigation, due to every pumping plant have cover pump assemblys, need single set in hydraulic model test
Pump assembly is controllable, measurable flow, completes two-way disengaging stream function again, in addition model is reduced by than ruler, model pump assembly
It is smaller, every unit by than ruler reduce manufacturing technology requirement it is high, be also easy to produce error, only can be controlled separately, also can not be single
Only flow measurement, and requirement of the hydraulic model test to pump be it is similar to prototype into and out of water flow, it is unrelated with pump installation, thus spend
Plenty of time, funds production model pump are also unnecessary, but solve the problems, such as this currently without preferable method, are only capable of passing through production
Model pump realizes that single pump is controllable, and the method that then into or out mouth flow velocity calculates flow by surveying it meets test requirements document.
Therefore reversible passage pumping plant separate type flow measurement method is designed in a kind of succinct, convenient hydraulic analogue test just very
It is necessary.
Summary of the invention
The object of the present invention is to provide reversible passage pumping plant separate type flow measurement control methods in a kind of hydraulic model test, can
Effectively to solve the problems in background technique.
Realizing the technical solution of above-mentioned purpose is: reversible passage pumping plant separate type flow measurement controlling party in hydraulic model test
Method, it is characterised in that: model reversible passage is made according to the prototype reversible passage pumping plant of removal pump assembly, in model reversible passage
It is provided with simulation spacer body, that simulates spacer body is provided centrally with the center for being used to install pump installation in prototype reversible passage pump
Hole, sealed set has spacing block in centre bore, simulates spacer body and spacing block and is independent the separation of model reversible passage and does not connect
Logical upper layer outlet passage and lower layer's water inlet flow channel, upper layer runner both ends are equipped with the first, second upper lock gate, and lower layer's runner both ends are set
There are the first, second tail gates；
Upper layer outlet passage is provided with flow inlet, and lower layer's water inlet flow channel is provided with outflow port, between flow inlet and outflow port
It is connected with external test pipeline, external developmental tube road is serially connected with circulation power pump, and it is two-way to pump completion model by circulation power
The water flow of runner conveys, to realize the simulation test of hydraulic model reversible passage pumping plant.
The present invention can complete the test of hydraulic model two-way pump station well, by between reversible passage and circulation power pump
Structure separates preferred arrangement, makes all each units of reversible passage pumping plant in a model and can individually control and flow measurement, and
It is easy to install and use quick.
Further, external developmental tube road is also serially connected with the regulating valve adjusted for flow, convenient for during the test
Realize that flow is adjusted.
Further, external developmental tube road is also serially connected with flowmeter, convenient for realizing traffic statistics during the test.
Detailed description of the invention
Fig. 1 is Method And Principle schematic diagram of the invention；
The schematic cross-sectional view of Fig. 2 prototype reversible passage pumping plant.
Specific embodiment
As shown in Figure 1, the present invention provides reversible passage pumping plant separate type flow measurement controlling parties in a kind of hydraulic model test
Method: first making model reversible passage 10 and model spacer body 11, and simulation spacer body 11 is provided centrally in prototype reversible passage
For installing the centre bore of pump installation in pump, sealed set has spacing block 9 in centre bore, simulates spacer body 11 and spacing block 9 will
The separation of model reversible passage is independent disconnected upper layer outlet passage 12 and lower layer's water inlet flow channel 13.
The water-in and water-out runner of reversible passage pump assembly shown in model reversible passage 10 and model spacer body 11 and Fig. 2 and divide
The shape of spacer is similar, and size is scaled, so that the upper layer outlet passage 12 and lower layer's feed water flow of model reversible passage 10
The upper layer outlet passage 4 of reversible passage pump assembly in the flow-shape and Fig. 2 in road 13 and the flow-shape of lower layer's water inlet flow channel 5
It is similar.
Outlet passage 12 both ends in upper layer are provided with the first upper lock gate 14 and the second upper lock gate 16 for controlling out stream direction, lower layer
13 both ends of water inlet flow channel are provided with first tail gates 15 and the second tail gates 17 in control influent stream direction.
Upper layer outlet passage 12 is provided with flow inlet 18, lower layer's water inlet flow channel 13 is provided with outflow port 19,18 He of flow inlet
Test pipeline 20 is connected between outflow port 19 on the outside of runner, tests and is serially connected with circulation power pump 21, flow valve on pipeline 20
22, flowmeter 23.
Separate unit reversible passage pump is conveyed by the water flow that circulation power pump 21 completes model reversible passage, to realize water conservancy project mould
The simulation test of type reversible passage pumping plant, method particularly includes:
1) the first upper lock gate 14, the second tail gates 17 are closed, opens the first tail gates 15 and the second upper lock gate 16, starting follows
Ring kinetic pump 21, water flow are entered by 13 left port of lower layer's water inlet flow channel, through outflow port 19, circulation power pump 21, flowmeter 23, stream
Valve 22, flow inlet 18 are measured, is flowed out by the right output port of upper layer outlet passage 12, can be adjusted during the test by flow valve 22 later
Amount of restriction measures flow by flowmeter 23.
2) the first upper lock gate 14, the second tail gates 17 are opened, closes the first tail gates 15 and the second upper lock gate 16, starting follows
Ring kinetic pump 21, water flow are entered by 13 right output port of lower layer's water inlet flow channel, through outflow port 19, circulation power pump 21, flowmeter 23, stream
Valve 22, flow inlet 18 are measured, is flowed out by the left port of upper layer outlet passage 12, can be adjusted during the test by flow valve 22 later
Amount of restriction measures flow by flowmeter 23.
Above-mentioned test process 1) 2) be respectively the different flow directions of hydraulic model reversible passage 10 two test method, it is real
Now the single of single model pump 25 pumps control and single-pump flow measurement, and the method is succinctly efficient, easy to control, test reliability height,
Test accuracy meets hydraulic model code requirement.
More set reversible passage pump houses of reversible passage pumping plant are tested according to the above method, and detailed process repeats no more.
Claims (3)
1. reversible passage pumping plant separate type flow measurement control method in hydraulic model test, it is characterised in that: according to removal pump assembly
Prototype reversible passage pumping plant make model reversible passage, simulation spacer body is provided in model reversible passage, simulates spacer body
Be provided centrally with for installing the centre bore of pump installation in prototype reversible passage pump, sealed set has separation in centre bore
Block simulates spacer body and spacing block for the separation of model reversible passage and is independent disconnected upper layer outlet passage and lower layer's water inlet
Runner, upper layer outlet passage both ends are equipped with the first, second upper lock gate, and lower layer's water inlet flow channel both ends are equipped with the first, second tail gates；
Upper layer outlet passage is provided with flow inlet, and lower layer's water inlet flow channel is provided with outflow port, connects between flow inlet and outflow port
There is external test pipeline, external developmental tube road is serially connected with circulation power pump, pumps by circulation power and complete model reversible passage
Water flow conveying, to realize the simulation test of hydraulic model reversible passage pumping plant.
2. reversible passage pumping plant separate type flow measurement control method, feature in hydraulic model test according to claim 1
Be: external developmental tube road is also serially connected with the regulating valve adjusted for flow.
3. reversible passage pumping plant separate type flow measurement control method, feature in hydraulic model test according to claim 1
Be: external developmental tube road is also serially connected with the flowmeter for flow monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710998056.4A CN107806423B (en) | 2017-10-19 | 2017-10-19 | Reversible passage pumping plant separate type flow measurement control method in hydraulic model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710998056.4A CN107806423B (en) | 2017-10-19 | 2017-10-19 | Reversible passage pumping plant separate type flow measurement control method in hydraulic model test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107806423A CN107806423A (en) | 2018-03-16 |
| CN107806423B true CN107806423B (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710998056.4A Active CN107806423B (en) | 2017-10-19 | 2017-10-19 | Reversible passage pumping plant separate type flow measurement control method in hydraulic model test |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060300B (en) * | 2018-10-23 | 2020-04-10 | 河北工业大学 | Vertical water tunnel of heterogeneous stream that can two-way flow |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55160197A (en) * | 1979-06-01 | 1980-12-12 | Hitachi Ltd | Condenser circulating water pumping system and its operating method |
| CN104500455A (en) * | 2014-12-15 | 2015-04-08 | 樊建苗 | Double-layer bidirectional flow passage system of vertical submersible axial-flow pump |
-
2017
- 2017-10-19 CN CN201710998056.4A patent/CN107806423B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55160197A (en) * | 1979-06-01 | 1980-12-12 | Hitachi Ltd | Condenser circulating water pumping system and its operating method |
| CN104500455A (en) * | 2014-12-15 | 2015-04-08 | 樊建苗 | Double-layer bidirectional flow passage system of vertical submersible axial-flow pump |
Non-Patent Citations (3)
| Title |
|---|
| 双向进出水流道模型试验研究;朱劲木等;《水泵技术》;20050228(第2期);第18-21页 * |
| 大型双向流道泵装置优化与试验研究;张鹏等;《江苏水利》;20170730(第7期);第28-32页 * |
| 大型轴流泵站双向流道设计及泵装置特性试验;陈松山等;《江苏理工大学学报(自然科学版)》;20010530;第22卷(第3期);第45-49页 * |
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| CN107806423A (en) | 2018-03-16 |
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