CN113323859A - Test system for nuclear power circulating water pump water inlet runner test - Google Patents
Test system for nuclear power circulating water pump water inlet runner test Download PDFInfo
- Publication number
- CN113323859A CN113323859A CN202110792703.2A CN202110792703A CN113323859A CN 113323859 A CN113323859 A CN 113323859A CN 202110792703 A CN202110792703 A CN 202110792703A CN 113323859 A CN113323859 A CN 113323859A
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- water inlet
- pipeline
- water
- inlet flow
- outlet pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 226
- 238000012360 testing method Methods 0.000 title claims abstract description 71
- 238000007664 blowing Methods 0.000 claims abstract description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005461 lubrication Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The invention discloses a test system for a nuclear power circulating water pump water inlet flow channel test, which comprises a water inlet flow channel water outlet pipe, a water inlet flow channel, a network blowing chamber, a water inlet flow channel forebay, a pipeline for the test, a rotation meter, a flowmeter, a pipeline pump and a valve, wherein the water inlet flow channel water outlet pipe is connected with the water inlet flow channel; one end of a water outlet pipe of the water inlet flow passage, the netting chamber, the water inlet flow passage forebay, the test pipeline and the other end of the water outlet pipe of the water inlet flow passage are sequentially connected; the water inlet flow passage, the water outlet pipe of the water inlet flow passage and the front pool of the water inlet flow passage are all made of transparent acrylic; red silk threads are stuck on the inner surface of the water inlet flow channel along the axial direction of the water inlet flow channel at intervals of 5 cm; the rotation meter is arranged in the water inlet channel water outlet pipe, and the axis of the rotation meter is superposed with the central axis of the water inlet channel water outlet pipe; a detachable filter screen is arranged in the net-blowing chamber; the flowmeter, the pipeline pump and the valve are respectively arranged on the pipeline for testing. The test system for the nuclear power circulating water pump water inlet runner test can be used for testing different water inlet runner models.
Description
Technical Field
The invention relates to a test system for a nuclear power circulating water pump water inlet runner test.
Background
The function of the circulating water system is to supply the necessary amount of cooling water to the condenser of the turbine and the heat exchanger of the conventional island auxiliary cooling water system during operation of the unit. The circulating water pump is an important device of a circulating water system, and the reliable operation of the circulating water pump is related to the stable operation of the nuclear power station. The key index for checking the reasonability of the water inlet runner of the circulating water pump is the flow state of the water inlet runner of the circulating water pump. A proper circulating water pump water inlet channel test system needs to be built for verifying the design feasibility of each water inlet channel.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a test system for a nuclear power circulating water pump water inlet runner test, which can be used for testing different water inlet runner models, does not need to dismantle the whole test system, and only needs to adjust the water inlet runner part.
The technical scheme for realizing the purpose is as follows: the utility model provides a test system for nuclear power circulating water pump inlet flow channel is experimental, includes inlet flow channel outlet pipe, inlet flow channel, drum net room, inlet flow channel forebay, experimental pipeline, rotation meter, flowmeter, tubing pump and valve, wherein:
one end of the water inlet channel water outlet pipe, the water inlet channel, the net-bulging chamber, the water inlet channel forebay, the test pipeline and the other end of the water inlet channel water outlet pipe are connected in sequence;
the water inlet flow passage, the water outlet pipe of the water inlet flow passage and the front pool of the water inlet flow passage are all made of transparent acrylic;
red silk threads are stuck on the inner surface of the water inlet runner along the axial direction of the water inlet runner at intervals of 5cm, the red silk threads are used for observing the flow state of the inner surface of the water inlet runner and qualitatively analyzing the inlet pre-rotation state of the water inlet runner;
the rotation meter is arranged in the water inlet channel water outlet pipe, and the axis of the rotation meter is superposed with the central axis of the water inlet channel water outlet pipe;
a detachable filter screen is arranged in the net-blowing chamber;
the flowmeter, the pipeline pump and the valve are respectively arranged on the pipeline for testing.
The test system for the nuclear power circulating water pump water inlet runner test is characterized in that the rotation meter comprises a support frame, a shaft, a proximity switch, a revolution meter, four blade type impellers and two water lubrication bearings, wherein:
the support frame is connected in the water inlet runner water outlet pipe through a bolt;
the shaft is vertically arranged on the support frame;
the two water-lubricated bearings are arranged on the shaft one above the other;
the four vane impellers are uniformly distributed on the lower part of the shaft along the circumferential direction, and the upper end and the lower end of each vane impeller are connected with the two water lubrication bearings in a one-to-one correspondence manner;
the proximity switch is fixed on the outer wall surface of the water inlet channel water outlet pipe and is adjacent to the blade type impeller;
the revolution meter is arranged outside the water inlet channel water outlet pipe and connected with the proximity switch.
The test system for the nuclear power circulating water pump water inlet flow channel test is characterized in that a joint of a water inlet flow channel water outlet pipe and a water inlet flow channel, a joint of the water inlet flow channel and a netting chamber, a joint of a water inlet flow channel forebay and a test pipeline and a joint of the test pipeline and the water inlet flow channel water outlet pipe are respectively closed through bolts.
The test system for the nuclear power circulating water pump water inlet runner test is characterized in that the water inlet runner water outlet pipe is formed by connecting a plurality of sections of pipelines.
The test system for the nuclear power circulating water pump water inlet runner test is characterized in that the water inlet runner water outlet pipe comprises an upper horizontal section pipeline, a lower horizontal section pipeline, a first vertical section pipeline and a second vertical section pipeline, wherein:
the upper horizontal pipeline and the lower horizontal pipeline are arranged up and down;
two ends of the first vertical section of pipeline are communicated with the water inlet flow channel and one end of the upper horizontal section of pipeline in a one-to-one correspondence manner;
two ends of the second vertical section of pipeline are communicated with the other end of the upper horizontal section of pipeline and one end of the lower horizontal section of pipeline in a one-to-one correspondence manner;
the other end of the lower horizontal section pipeline is communicated with the test pipeline.
The test system for the nuclear power circulating water pump water inlet runner test is used for testing before the circulating water pump design is solidified so as to test the feasibility of the water inlet runner design, and has the following advantages:
(1) the structure is simple, and the interface part is combined through a bolt, so that the replacement operation is convenient;
(2) the water inlet flow channel, the water inlet flow channel water outlet pipe and the water inlet flow channel forebay are designed to be made of acrylic transparent materials so as to be convenient for observing the flow state;
(3) different plugging schemes can be realized by replacing the filter screen to simulate the actual working conditions, so that the flow state law is found out, and a basis is provided for the design of a water inlet flow passage;
(4) different water inlet runner models can be checked by replacing water inlet runners with different structures, and the optimal water inlet runner design scheme suitable for related projects can be found out.
Drawings
FIG. 1 is a structural diagram of a test system for a nuclear power circulating water pump water inlet runner test of the invention;
fig. 2 is a schematic view of the mounting of the gyrometer.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 1 and 2, in a preferred embodiment of the present invention, a test system for a nuclear power circulating water pump water inlet channel test includes a water inlet channel water outlet pipe 2, a water inlet channel 3, a network-blowing chamber 4, a water inlet channel forebay 5, a test pipeline 9, a rotation meter 1, a flowmeter 6, a pipeline pump 7, and a valve 8.
One end of a water inlet channel water outlet pipe 2, a water inlet channel 3, a netting chamber 4, a water inlet channel forebay 5, a test pipeline 9 and the other end of the water inlet channel water outlet pipe 2 are connected in sequence to form a circulation loop; the water inlet channel 3, the water outlet pipe 2 of the water inlet channel and the front pool 5 of the water inlet channel are all made of transparent acrylic so as to be convenient for observing the flow state.
Red silk threads are stuck on the inner surface of the water inlet flow channel 3 along the axial direction of the water inlet flow channel at intervals of 5cm, the flow state of the inner surface of the water inlet flow channel is observed by observing the swing of the red silk threads, and meanwhile, the pre-rotation state of the inlet of the water inlet flow channel 3 is qualitatively analyzed.
The rotation meter 1 comprises a support frame 11, a shaft 12, a proximity switch 13, a revolution meter 14, four blade type impellers 15 and two water lubrication bearings 16, wherein the support frame 11 is connected in the water inlet channel water outlet pipe 2 through bolts; the shaft 12 is vertically arranged on the support frame 11, and the axis of the rotation meter 1 is superposed with the central axis of the water inlet channel water outlet pipe 2; two water lubricated bearings 16 are arranged one above the other on the shaft 12; the four vane impellers 15 are uniformly distributed on the lower part of the shaft 12 along the circumferential direction, and the upper end and the lower end of each vane impeller 15 are correspondingly connected with two water lubrication bearings 16 one by one; the proximity switch 13 is fixed on the outer wall surface of the water inlet channel water outlet pipe 2, and the proximity switch 13 is adjacent to the blade type impeller 15; the tachometer 14 is arranged outside the water inlet channel water outlet pipe 2, and the tachometer 14 is electrically connected with the proximity switch 13.
The rotation meter 1 is used for observing the rotation intensity of water flow in a water inlet pipeline of the water pump.
A detachable filter screen is arranged in the net-blowing chamber 4; different plugging schemes are realized by replacing the filter screen to simulate the actual working condition, so that the flow state law is found out, and a basis is provided for the design of the water inlet flow passage.
The flowmeter 6, the pipeline pump 7 and the valve 8 are respectively arranged on the pipeline 9 for testing.
The joint of the water inlet channel water outlet pipe 2 and the water inlet channel 3, the joint of the water inlet channel 3 and the netting chamber 4, the joint of the water inlet channel forebay 5 and the test pipeline 9, and the joint of the test pipeline 9 and the water inlet channel water outlet pipe 2 are respectively closed through bolts, so that the replacement operation is convenient.
Preferably, the water inlet channel and the water outlet pipe 2 are formed by connecting a plurality of sections of pipelines. The water inlet channel water outlet pipe 2 comprises an upper horizontal section pipeline, a lower horizontal section pipeline, a first vertical section pipeline and a second vertical section pipeline, and the upper horizontal section pipeline and the lower horizontal section pipeline are arranged one above the other; two ends of the first vertical section of pipeline are communicated with the water inlet flow channel 3 and one end of the upper horizontal section of pipeline in a one-to-one correspondence manner; two ends of the second vertical section of pipeline are communicated with the other end of the upper horizontal section of pipeline and one end of the lower horizontal section of pipeline in a one-to-one correspondence manner; the other end of the lower horizontal segment pipeline is communicated with a pipeline 9 for test.
When the test system for the water inlet runner test of the nuclear power circulating water pump is used, the pipeline pump 7 and the valve 8 are opened, water in the water inlet runner forebay 5 enters the water inlet runner 3 through the netting chamber 4, then flows back to the test pipeline 9 from the water inlet runner water outlet pipe 2, the water flow speed in the pipeline is observed through the flowmeter 6, the water flow rotation strength in the water inlet pipeline of the water pump is observed through the rotation meter 1, the flow state of the inner surface of the water inlet runner is observed through observing the swing of the red silk thread in the water inlet runner 3, and meanwhile, the inlet pre-rotation state of the water inlet runner 3 is qualitatively analyzed. Like this, adopt water level, flow simulation to observe circulating water pump water inflow flow state, when using, need not to demolish whole test system, only need adjust the runner part of intaking, can inspect different runner models of intaking, before circulating water pump design solidification, test to the feasibility of inspection runner design of intaking.
In conclusion, the test system for the nuclear power circulating water pump water inlet runner test is used for testing the feasibility of the water inlet runner design before the circulating water pump design is solidified, can be used for testing different water inlet runner models, does not need to dismantle the whole test system, and only needs to adjust the water inlet runner part.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a test system for nuclear power circulating water pump inlet flow channel is experimental, its characterized in that, includes inlet flow channel outlet pipe, inlet flow channel, drum network room, inlet flow channel forebay, experimental pipeline, rotation meter, flowmeter, tubing pump and valve, wherein:
one end of the water inlet channel water outlet pipe, the water inlet channel, the net-bulging chamber, the water inlet channel forebay, the test pipeline and the other end of the water inlet channel water outlet pipe are connected in sequence;
the water inlet flow passage, the water outlet pipe of the water inlet flow passage and the front pool of the water inlet flow passage are all made of transparent acrylic;
red silk threads are stuck on the inner surface of the water inlet runner along the axial direction of the water inlet runner at intervals of 5cm, the red silk threads are used for observing the flow state of the inner surface of the water inlet runner and qualitatively analyzing the inlet pre-rotation state of the water inlet runner;
the rotation meter is arranged in the water inlet channel water outlet pipe, and the axis of the rotation meter is superposed with the central axis of the water inlet channel water outlet pipe;
a detachable filter screen is arranged in the net-blowing chamber;
the flowmeter, the pipeline pump and the valve are respectively arranged on the pipeline for testing.
2. The test system for the water inlet flow channel test of the nuclear power circulating water pump as claimed in claim 1, wherein the rotation meter comprises a support frame, a shaft, a proximity switch, a tachometer, four blade impellers and two water-lubricated bearings, wherein:
the support frame is connected in the water inlet runner water outlet pipe through a bolt;
the shaft is vertically arranged on the support frame;
the two water-lubricated bearings are arranged on the shaft one above the other;
the four vane impellers are uniformly distributed on the lower part of the shaft along the circumferential direction, and the upper end and the lower end of each vane impeller are connected with the two water lubrication bearings in a one-to-one correspondence manner;
the proximity switch is fixed on the outer wall surface of the water inlet channel water outlet pipe and is adjacent to the blade type impeller;
the revolution meter is arranged outside the water inlet channel water outlet pipe and connected with the proximity switch.
3. The test system for the nuclear power circulating water pump water inlet flow channel test is characterized in that a joint of a water inlet flow channel water outlet pipe and a water inlet flow channel, a joint of the water inlet flow channel and a network blowing chamber, a joint of a water inlet flow channel forebay and a test pipeline and a joint of the test pipeline and the water inlet flow channel water outlet pipe are respectively combined through bolts.
4. The test system for the water inlet flow channel test of the nuclear power circulating water pump as claimed in claim 1, wherein the water inlet flow channel and the water outlet pipe are formed by connecting a plurality of sections of pipelines.
5. The test system for the water inlet runner test of the nuclear power circulating water pump as claimed in claim 4, wherein the water inlet runner water outlet pipe comprises an upper horizontal segment pipeline, a lower horizontal segment pipeline, a first vertical segment pipeline and a second vertical segment pipeline, wherein:
the upper horizontal pipeline and the lower horizontal pipeline are arranged up and down;
two ends of the first vertical section of pipeline are communicated with the water inlet flow channel and one end of the upper horizontal section of pipeline in a one-to-one correspondence manner;
two ends of the second vertical section of pipeline are communicated with the other end of the upper horizontal section of pipeline and one end of the lower horizontal section of pipeline in a one-to-one correspondence manner;
the other end of the lower horizontal section pipeline is communicated with the test pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110792703.2A CN113323859A (en) | 2021-07-13 | 2021-07-13 | Test system for nuclear power circulating water pump water inlet runner test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110792703.2A CN113323859A (en) | 2021-07-13 | 2021-07-13 | Test system for nuclear power circulating water pump water inlet runner test |
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| CN113323859A true CN113323859A (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110792703.2A Pending CN113323859A (en) | 2021-07-13 | 2021-07-13 | Test system for nuclear power circulating water pump water inlet runner test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623085A (en) * | 2022-03-23 | 2022-06-14 | 合肥凯泉电机电泵有限公司 | Open type water inlet pump station performance model test device |
| CN114623085B (en) * | 2022-03-23 | 2024-04-09 | 合肥凯泉电机电泵有限公司 | Performance model test device for open type water inlet pump station |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206412A (en) * | 2012-01-12 | 2013-07-17 | 姚文泉 | Elbow-shaped inlet conduit |
| CN103439907A (en) * | 2013-09-04 | 2013-12-11 | 济南大学 | Multi-signal-acquisition speed-measurement and reversed-rotation protection and control device and reversed-rotation judgment method |
| CN104132000A (en) * | 2014-07-30 | 2014-11-05 | 扬州大学 | Elbow-shaped water inlet conduit with excellent hydraulic performance and application method thereof |
| CN204344481U (en) * | 2014-11-10 | 2015-05-20 | 扬州大学 | Axial-flow pump device diffuser average exit speed circular rector affects the model test apparatus of outlet passage hydraulic performance |
| CN104696234A (en) * | 2015-03-23 | 2015-06-10 | 扬州大学 | Large-sized low lift head pump device energy performance calculation method |
| CN112360759A (en) * | 2020-11-27 | 2021-02-12 | 扬州大学 | Water head loss testing system for water inlet and outlet flow channel and flap valve and using method thereof |
-
2021
- 2021-07-13 CN CN202110792703.2A patent/CN113323859A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206412A (en) * | 2012-01-12 | 2013-07-17 | 姚文泉 | Elbow-shaped inlet conduit |
| CN103439907A (en) * | 2013-09-04 | 2013-12-11 | 济南大学 | Multi-signal-acquisition speed-measurement and reversed-rotation protection and control device and reversed-rotation judgment method |
| CN104132000A (en) * | 2014-07-30 | 2014-11-05 | 扬州大学 | Elbow-shaped water inlet conduit with excellent hydraulic performance and application method thereof |
| CN204344481U (en) * | 2014-11-10 | 2015-05-20 | 扬州大学 | Axial-flow pump device diffuser average exit speed circular rector affects the model test apparatus of outlet passage hydraulic performance |
| CN104696234A (en) * | 2015-03-23 | 2015-06-10 | 扬州大学 | Large-sized low lift head pump device energy performance calculation method |
| CN112360759A (en) * | 2020-11-27 | 2021-02-12 | 扬州大学 | Water head loss testing system for water inlet and outlet flow channel and flap valve and using method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623085A (en) * | 2022-03-23 | 2022-06-14 | 合肥凯泉电机电泵有限公司 | Open type water inlet pump station performance model test device |
| CN114623085B (en) * | 2022-03-23 | 2024-04-09 | 合肥凯泉电机电泵有限公司 | Performance model test device for open type water inlet pump station |
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Application publication date: 20210831 |
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