CN111964870B - Test platform for pump room flow channel simulation - Google Patents
Test platform for pump room flow channel simulation Download PDFInfo
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- CN111964870B CN111964870B CN202010835652.2A CN202010835652A CN111964870B CN 111964870 B CN111964870 B CN 111964870B CN 202010835652 A CN202010835652 A CN 202010835652A CN 111964870 B CN111964870 B CN 111964870B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a test platform for pump room flow channel simulation, belonging to the technical field of simulation test devices; a test platform for pump room flow channel simulation comprises an underground reservoir, a supporting rod, a circulating water tank and a suspension platform, wherein the bottom end of the supporting rod is fixedly connected to the bottom surface of the underground reservoir; the hydraulic simulation device effectively solves the problems that the existing design is simple, the structure is fixed, and the hydraulic simulation device cannot be suitable for hydraulic simulation work of circulating water pump rooms of different types.
Description
Technical Field
The invention relates to the technical field of simulation test devices, in particular to a test platform for pump room flow channel simulation.
Background
The circulating water pump room of the thermonuclear power plant is an important component of the power plant, and the running state of the circulating water pump room is related to the safety and the efficiency of the whole power plant. The circulating water pump house has a plurality of structural buildings, and in order to ensure that the circulating water pump house can efficiently and stably operate under various operating conditions, hydraulic simulation of the circulating water pump house is a necessary condition for engineering construction feasibility research.
The arrangement forms of the circulating water pump rooms are various, but the circulating water pump rooms generally comprise a water diversion section, a forebay section and a water diversion runner section, and the research on the hydraulic characteristics of the circulating water pump rooms is mainly based on the accurate simulation of the water diversion section, the forebay section and the water diversion runner section; however, the existing pump room flow channel simulation equipment on the market is usually simple in design and fixed in structure, only single pump room flow channel simulation work can be carried out, and according to certain commonalities of circulating water pump rooms, the invention provides a test platform for pump room flow channel simulation, which can be suitable for hydraulic simulation of different types of circulating water pump rooms after partial transformation.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to provide a test platform for pump room flow channel simulation, which aims to solve the problems in the background technology:
the existing design is simple, the structure is fixed, and the hydraulic simulation device cannot be applied to hydraulic simulation of circulating water pump rooms of different types.
2. Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
a test platform for pump room flow channel simulation comprises an underground reservoir, a support rod, a circulating water tank and a movable water tank, wherein the bottom end of the support rod is fixedly connected to the bottom surface of the underground reservoir, the circulating water tank is fixedly connected to the top end of the support rod, the top of the circulating water tank is open, a water inlet pipeline is fixedly connected to the bottom surface of the circulating water tank, a water tank water level adjusting mechanism is installed on the side wall of the circulating water tank, the movable water tank is communicated with the circulating water tank, the bottom end of the movable water tank is fixedly connected with an adjustable support column, the bottom end of the adjustable support column is fixedly connected to the ground, a connecting frame is fixedly connected to one end of the movable water tank, which is far away from the circulating water tank, a water outlet device is connected to the connecting frame, the lower end of the water outlet device is connected to a reverse water measuring tank, and the reverse water measuring tank is also fixedly connected to the ground, one side of the reverse flume is fixedly connected with a rectangular flume weir plate, the other side of the reverse flume is connected with a water level measuring device, and one end, far away from the reverse flume, of the rectangular flume weir plate is communicated with the underground reservoir.
Preferably, the water tank water level adjusting mechanism comprises a U-shaped groove and an overflow weir plate, the U-shaped groove is formed in the side wall of the circulating water tank, a rectangular plate is connected in the U-shaped groove in a sliding mode, the overflow weir plate is fixedly connected with the rectangular plate, and a top pull rod is fixedly connected to the upper surface of the rectangular plate.
Preferably, a rectification cross beam is further arranged inside the circulating water tank, the rectification cross beam is vertically arranged inside the circulating water tank, and two ends of the rectification cross beam are fixedly connected with the inner side wall of the circulating water tank.
Preferably, the water outlet device comprises pumping water discharging equipment, a siphon is fixedly connected to the pumping water discharging equipment, a water inlet valve is fixedly mounted on the side wall of the vertical section of the siphon, a vent valve is fixedly mounted on the horizontal section of the siphon, and a butterfly valve is fixedly mounted at one end, far away from the pumping water discharging equipment, of the siphon.
Preferably, the water level measuring device comprises a water level measuring cylinder, the water level measuring cylinder is fixedly connected to the side wall of the reverse water measuring tank, a high-precision measuring pin is fixedly mounted inside the water level measuring cylinder, a communicating hose is fixedly connected to the side wall of the high-precision measuring pin, and one end, far away from the high-precision measuring pin, of the communicating hose extends to the rectangular water measuring weir plate along the reverse water measuring tank.
3. Advantageous effects
In order to realize convenient control of the water level of the circulating water tank, the method adopted by the invention is that a U-shaped groove is formed on the side wall of the circulating water tank, a rectangular plate is connected in the groove in a sliding way, the water level can overflow through an overflow weir plate after being higher than the rectangular plate, and the height of the rectangular plate can be adjusted through a top pull rod, so that the water level of the water tank is adjusted; in order to adjust the flow state of the water in the circulating water tank and make the water flow in the circulating water tank uniform before entering the model pump room, a plurality of layers of rectifying beams are fixedly connected in the circulating water tank, and the rectifying beams also have the function of reinforcing the structure of the circulating water tank; in order to adapt to the simulation of circulating water pump rooms with different structural body types, a movable water tank is further arranged on one side of the circulating water tank, and supporting columns can be adjusted at the bottom end of the movable water tank, so that the simulation system can adapt to most structural body types of the circulating water pump rooms; the water outlet section of the pump room adopts a siphon as a water outlet pipeline, the siphon can be repeatedly used after primary irrigation, and a bottom butterfly valve is matched with a high-precision measuring needle and a rectangular water measuring weir plate to realize stable and accurate control of flow; when the adjustable support is used, the adjustable support is adjusted according to the model body type, the model is installed, the water outlet of the model is connected with the siphon, and the water inlet of the model is connected with the water tank; then closing a butterfly valve at the bottom of the siphon, opening a water inlet valve and a vent valve at the top, filling water into the siphon from the water inlet valve, and closing the water inlet valve and the vent valve after filling; then the height of an overflow weir plate on the circulating water tank is roughly adjusted, and a bottom water pump is started to fill the circulating water tank with water; opening a butterfly valve at the bottom of the siphon pipe after the water level of the model reaches a certain height, calculating the flow according to the reading of the water level measuring cylinder and the high-precision measuring pin, and adjusting the flow controlled by the butterfly valve; and finally, adjusting an overflow weir plate on the circulating water tank to a required water level elevation, and simultaneously adjusting a butterfly valve to realize stable control of water level flow.
Drawings
Fig. 1 is a schematic structural diagram of a test platform for pump room flow channel simulation according to the present invention;
FIG. 2 is a schematic structural diagram of a water tank level adjusting mechanism of a test platform for pump room flow channel simulation according to the present invention;
fig. 3 is a schematic structural diagram of a water outlet device and a water level measuring device of a test platform for pump room flow channel simulation according to the present invention.
The reference numbers in the figures illustrate:
1. an underground reservoir; 2. a support bar; 3. a circulating water tank; 4. a movable water tank; 5. a water inlet pipe; 6. a water tank level adjusting mechanism; 601. a U-shaped groove; 602. an overflow weir plate; 7. an adjustable support column; 8. a connecting frame; 9. a water outlet device; 901. a pump water discharge device; 902. a siphon tube; 903. a water inlet valve; 904. a vent valve; 905. a butterfly valve; 10. a reverse water measuring tank; 11. a rectangular weir plate for measuring water; 12. a water level measuring device; 1201. a water level measuring cylinder; 1202. high-precision measuring pins; 1203. a communication hose; 13. and a rectifying beam.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1-3, a test platform for pump room flow channel simulation comprises an underground reservoir 1, a support rod 2, a circulating water tank 3 and a movable water tank 4, wherein the bottom end of the support rod 2 is fixedly connected to the bottom surface of the underground reservoir 1, the circulating water tank 3 is fixedly connected to the top end of the support rod 2, the top of the circulating water tank 3 is open, the bottom surface of the circulating water tank 3 is fixedly connected with a water inlet pipe 5, a water tank water level adjusting mechanism 6 is installed on the side wall of the circulating water tank 3, the movable water tank 4 is communicated with the circulating water tank 3, the bottom end of the movable water tank 4 is fixedly connected with an adjustable support column 7, the bottom end of the adjustable support column 7 is fixedly connected to the ground, one end of the movable water tank 4, which is far away from the circulating water tank 3, is fixedly connected with a connecting frame 8, a water outlet device 9 is connected to the connecting frame 8, the lower end of the water outlet device 9 is connected to a reverse water measuring tank 10, reverse flume 10 is also fixed connection subaerial, and one side fixedly connected with rectangle water gaging weir plate 11 of reverse flume 10, the opposite side of reverse flume 10 is connected with water level measurement device 12, and rectangle water gaging weir plate 11 is kept away from reverse flume 10 one end and is linked together with underground reservoir 1.
The water tank water level adjusting mechanism 6 comprises a U-shaped groove 601 and an overflow weir plate 602, the U-shaped groove 601 is arranged on the side wall of the circulating water tank 1, a rectangular plate is connected in the U-shaped groove in a sliding mode, the overflow weir plate 602 is fixedly connected with the rectangular plate, and a top pull rod is fixedly connected to the upper surface of the rectangular plate.
The inside of circulating water tank 3 still is provided with rectification crossbeam 13, and rectification crossbeam 13 vertical arrangement is inside circulating water tank 3, and the both ends of rectification crossbeam 13 and circulating water tank 3's inside wall fixed connection.
The water outlet device 9 comprises a pumping water discharging device 901, a siphon pipe 902 is fixedly connected to the pumping water discharging device 901, a water inlet valve 903 is fixedly installed on the side wall of the vertical section of the siphon pipe 902, a vent valve 904 is fixedly installed on the horizontal section of the siphon pipe 902, and a butterfly valve 905 is fixedly installed at one end, far away from the pumping water discharging device 901, of the siphon pipe 902.
The water level measuring device 12 comprises a water level measuring cylinder 1201, the water level measuring cylinder 1201 is fixedly connected to the side wall of the reverse measuring flume 10, a high-precision measuring needle 1202 is fixedly mounted inside the water level measuring cylinder 1201, a communication hose 1203 is fixedly connected to the side wall of the high-precision measuring needle 1202, and one end, far away from the high-precision measuring needle 1202, of the communication hose 1203 extends to the rectangular measuring weir plate 11 along the reverse measuring flume 10.
In order to realize convenient control of the water level of the circulating water tank 3, the method adopted by the invention is that a U-shaped groove 601 is formed on the side wall of the circulating water tank 3, a rectangular plate is connected in the groove in a sliding way, the water level can overflow through an overflow weir plate 602 after being higher than the rectangular plate, and the height of the rectangular plate can be adjusted through a top pull rod, so that the water level of the water tank is adjusted; in order to adjust the flow state of the water in the circulating water tank 3 and make the water flow in the circulating water tank 3 uniform before entering the model pump room, a plurality of layers of rectifying beams 13 are fixedly connected in the circulating water tank 3, and the rectifying beams also have the function of reinforcing the structure of the circulating water tank 3; in order to adapt to the simulation of circulating water pump rooms with different structural body types, a movable water tank 4 is further arranged on one side of the circulating water tank 3, and a supporting column 7 can be adjusted at the bottom end of the movable water tank 4, so that the simulation system can adapt to most of structural body types of the circulating water pump rooms; the water outlet section of the pump room adopts a siphon pipe 902 as a water outlet pipeline which can be repeatedly used after primary water irrigation, and a bottom butterfly valve 905 is matched with a high-precision measuring needle 1202 and a rectangular water measuring weir plate 11 to realize stable and accurate control of flow; when in use, firstly, the adjustable support 7 is adjusted according to the model body type, the model is installed, the water outlet of the model is connected with the siphon 902, and the water inlet is connected with the circulating water tank 3; then, a butterfly valve 905 at the bottom of the siphon pipe 902 is closed, a top water inlet valve 903 and a vent valve 904 are opened, water is filled into the siphon pipe 902 from the water inlet valve 903, and the water inlet valve 903 and the vent valve 904 are closed after the siphon pipe 902 is filled with the water; then the height of an overflow weir plate 602 behind the water tank 4 is roughly adjusted, and a bottom water pump is started to fill water into the circulating water tank 3; after the water level of the model reaches a certain height, a butterfly valve 905 at the bottom of the siphon pipe 902 is opened, the flow is calculated according to the readings of the water level measuring cylinder 1201 and the high-precision measuring needle 1202, and the flow is controlled by adjusting the butterfly valve 905; and finally, adjusting an overflow weir plate 602 on the circulating water tank 3 to a required water level elevation, and simultaneously adjusting a butterfly valve 905 to realize stable control of water level flow.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.
Claims (3)
1. The utility model provides a test platform of pump house runner simulation, includes underground reservoir (1), bracing piece (2), circulating water tank (3) and movable water tank (4), its characterized in that: the bottom end of the supporting rod (2) is fixedly connected to the bottom surface of the underground reservoir (1), the circulating water tank (3) is fixedly connected to the top end of the supporting rod (2), the top of the circulating water tank (3) is open, a water inlet pipeline (5) is fixedly connected to the bottom surface of the circulating water tank (3), a water tank water level adjusting mechanism (6) is installed on the side wall of the circulating water tank (3), the water tank water level adjusting mechanism (6) comprises a U-shaped groove (601) and an overflow weir plate (602), the U-shaped groove (601) is arranged on the side wall of the circulating water tank (3), a rectangular plate is connected in the U-shaped groove in a sliding mode, the overflow weir plate (602) is fixedly connected with the rectangular plate, and a top pull rod is fixedly connected to the upper surface of the rectangular plate;
the movable water tank (4) is communicated with the circulating water tank (3), the bottom end of the movable water tank (4) is fixedly connected with an adjustable supporting column (7), the bottom end of the adjustable supporting column (7) is fixedly connected to the ground, one end, far away from the circulating water tank (3), of the movable water tank (4) is fixedly connected with a connecting frame (8), a water outlet device (9) is connected onto the connecting frame (8), the water outlet device (9) comprises pumping water discharge equipment (901), a siphon pipe (902) is fixedly connected onto the pumping water discharge equipment (901), a water inlet valve (903) is fixedly installed on the side wall of the vertical section of the siphon pipe (902), a vent valve (904) is fixedly installed on the horizontal section of the siphon pipe (902), and a butterfly valve (905) is fixedly installed at one end, far away from the pumping water discharge equipment (901), of the siphon pipe (902);
the water outlet device is characterized in that the lower end of the water outlet device (9) is connected to a reverse measuring trough (10), the reverse measuring trough (10) is also fixedly connected to the ground, a rectangular measuring weir plate (11) is fixedly connected to one side of the reverse measuring trough (10), a water level measuring device (12) is connected to the other side of the reverse measuring trough (10), and one end, far away from the reverse measuring trough (10), of the rectangular measuring weir plate (11) is communicated with the underground reservoir (1).
2. The test platform for pump room flow channel simulation of claim 1, wherein: the water circulation tank is characterized in that a rectification cross beam (13) is further arranged inside the water circulation tank (3), the rectification cross beam (13) is vertically arranged inside the water circulation tank (3), and two ends of the rectification cross beam (13) are fixedly connected with the inner side wall of the water circulation tank (3).
3. The test platform for pump room flow channel simulation of claim 1, wherein: the water level measuring device (12) comprises a water level measuring cylinder (1201), the water level measuring cylinder (1201) is fixedly connected to the side wall of the reverse measuring flume (10) in a fixed mode, a high-precision measuring needle (1202) is fixedly installed inside the water level measuring cylinder (1201), a communication hose (1203) is fixedly connected to the side wall of the high-precision measuring needle (1202), and one end, far away from the high-precision measuring needle (1202), of the communication hose (1203 extends to the position of the rectangular measuring weir plate (11) along the reverse measuring flume (10).
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| CN202010835652.2A CN111964870B (en) | 2020-08-19 | 2020-08-19 | Test platform for pump room flow channel simulation |
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| CN113740030A (en) * | 2021-11-05 | 2021-12-03 | 水利部交通运输部国家能源局南京水利科学研究院 | Pipeline resistance parameter detection system and detection method |
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