CN104806534A - System for testing variable rotating speed performance of main water feed pump of nuclear power station - Google Patents
System for testing variable rotating speed performance of main water feed pump of nuclear power station Download PDFInfo
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- CN104806534A CN104806534A CN201510225472.1A CN201510225472A CN104806534A CN 104806534 A CN104806534 A CN 104806534A CN 201510225472 A CN201510225472 A CN 201510225472A CN 104806534 A CN104806534 A CN 104806534A
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- pump
- feed pump
- main feed
- cooling
- outlet
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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
Abstract
The invention discloses a system for testing variable rotating speed performance of a main water feed pump of a nuclear power station. The system comprises a booster pump, a motor, a gearbox and the main feed pump which are sequentially connected in the axial direction, and a frequency converter, wherein the outlet of the booster pump is connected with the inlet of the main water feed pump by a main water feed pump inlet pipe; the outlet of the main water feed pump is connected with a main water feed pump outlet pipe; the inlet of the booster pump is connected with a booster pump inlet pipe; an electric regulating valve is arranged between the outlet of the main water feed pump outlet pipe and the inlet of the booster pump inlet pipe; the booster pump inlet pipe is provided with a nozzle flow meter. The system disclosed by the invention has the technical effect of being capable of satisfying the demands of a variable rotating speed performance test of the main water feed pump.
Description
Technical field
The present invention relates to a kind of nuclear power station main feed pump variable speed performance test system.
Background technique
Main feed pump is the middle constituent element in the letter of million kilowatt nuclear power station, the main performance index of main feed pump has: the normal temperature performance of main feed pump, front-mounted pump cavitation performance, main feed pump cavitation performance, main feed pump variable speed performance, main feed pump thermal shock resistance properties, main feed pump at 180 DEG C of hot performances, the hot and cold impact property of main feed pump, main feed pump minimum discharge, the hot endurance quality of main feed pump etc.Wherein any one performance does not pass a test and all brings fatal impact by the operation of nuclear power station.Therefore main feed pump dispatch from the factory before inspection very important.Therefore a kind of nuclear power station main feed pump of design-build pilot system, to meet the research and development of main feed pump model machine and product export united test is very important.Domestic at present also do not have a set of nuclear power station main feed pump pilot system, can meet requirement main feed pump being carried out to the test of variable speed performance test.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of nuclear power station main feed pump variable speed performance test system being provided, can needs main feed pump being carried out to variable speed performance test being met.
A kind of technological scheme realizing above-mentioned purpose is: a kind of nuclear power station main feed pump variable speed performance test system, comprises the front-mounted pump, motor, gear-box and the main feed pump that axially connect successively, and frequency variator;
Be connected by main feed pump inlet tube between described preposition delivery side of pump and the import of described main feed pump;
The outlet of described main feed pump connects main feed pump outer pipe, the import of described front-mounted pump connects front-mounted pump inlet tube, be provided with electric control valve between the outlet of described main feed pump outer pipe and the import of described front-mounted pump inlet tube, described front-mounted pump inlet tube is provided with nozzle flowmeter.
Further, on described front-mounted pump inlet tube, also side is connected to water charging system and emptying system;
Described water charging system comprises moisturizing water source, small pump, small pump for water regulating valve and small pump outlet exhaust-valve, is connected for water regulating valve by described small pump and described small pump between described moisturizing water source with described front-mounted pump inlet tube, the entrance point of described small pump confession water regulating valve with also export exhaust-valve by described small pump between described moisturizing water source and be connected;
Described emptying system comprises an emptying pipe, and described emptying pipe is positioned at the entrance point of main pneumatic cut-off valve, and described emptying pipe is provided with emptying electric control valve.
Described emptying system emptying pipe, described emptying pipe is positioned at the entrance point of main pneumatic cut-off valve, and described emptying pipe is provided with emptying electric control valve.
Further, it is also equipped with a set of lubricating oil system, comprise lubricating oil station, and by the fuel supply line that described lubricating oil station is connected with the lubricating oil inlet on described main feed pump with described front-mounted pump, described motor, described gear-box, and by return tube that described lubricating oil station is connected with the lubricating oil outlet on described main feed pump with described front-mounted pump, described motor, described gear-box.
Further, it is also equipped with a set of cooling system, comprise cooling pond, cooling waterpump, the first cooling water intake pipe, first cooling water outlet pipe, and coolant outlet, described cooling waterpump connects described cooling pond, described cooling waterpump connects described motor, described front-mounted pump and described main feed pump by the first cooling water intake pipe, described first cooling water intake pipe is provided with the first cooling water intake valve, described motor, described front-mounted pump and between described main feed pump and described coolant outlet by described first cooling water outlet pipe connect.
Further, described cooling system also comprises the second cooling water intake pipe and the second cooling water outlet pipe; Described second cooling water intake pipe connects described cooling waterpump and described lubricating oil station, and described second cooling water outlet pipe connects described coolant outlet and described lubricating oil station.
Have employed a kind of nuclear power station main feed pump variable speed performance test system of the present invention, comprise the front-mounted pump, motor, gear-box and the main feed pump that axially connect successively, and frequency variator;
Be connected by main feed pump inlet tube between described preposition delivery side of pump and the import of described main feed pump; The outlet of described main feed pump connects main feed pump outer pipe, the import of described front-mounted pump connects front-mounted pump inlet tube, be provided with electric control valve between the outlet of described main feed pump outer pipe and the import of described front-mounted pump inlet tube, described front-mounted pump inlet tube is provided with nozzle flowmeter.Its technique effect is: can meet the needs to main feed pump variable speed performance test.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of nuclear power station main feed pump variable speed performance test system of the present invention.
Embodiment
Refer to Fig. 1, the present inventor, in order to understand technological scheme of the present invention better, below by embodiment particularly, and is described in detail by reference to the accompanying drawings:
Refer to Fig. 1, a kind of nuclear power station main feed pump variable speed performance test system of the present invention comprises the front-mounted pump 11, motor 12, gear-box 13 and the main feed pump 14 that connect successively vertically.Wherein the second end of front-mounted pump 11 rotating shaft connects the first end of motor 12 rotating shaft, and the second end of motor 12 rotating shaft connects the input end of gear-box 13, and the output terminal of gear-box 13 connects the first end of main feed pump 14 rotating shaft.The temperature transmitter of front-mounted pump 11 outlet port and main feed pump 14 inlet.A kind of nuclear power station main feed pump variable speed performance test system of the present invention is also provided with frequency variator.Between front-mounted pump 11 and motor 12, between motor 12 and gear-box 13, and be equipped with torsionmeter between gear-box 13 and main feed pump 14.
Be provided with main feed pump inlet tube 21 between the outlet of front-mounted pump 11 and the import of main feed pump 14, the caliber of main feed pump inlet tube 21 is 600mm, and design pressure is 6.3Mpa.The design pressure of the inlet of main feed pump 14 is 11MPa, and caliber is 500mm.Because the outlet of front-mounted pump 11 and the angle of level ground are 63 °, the import of main feed pump 14 and the angle of level ground are 63 °, so main feed pump inlet tube 21 is arranged for built on stilts.Gas exhaust piping is provided with in addition on the top of main feed pump inlet tube 21.
The outlet of main feed pump 14 connects main feed pump outer pipe 22, and the caliber of main feed pump outer pipe 22 is 500mm, design pressure 16.0MPa.The import of front-mounted pump 11 connects front-mounted pump inlet tube 23.Electric control valve 25 is provided with between the outlet of main feed pump outer pipe 22 and the import of front-mounted pump inlet tube 23.The caliber of front-mounted pump inlet tube 23, by from the 500mm being connected one end with electric control valve 25, is gradient to the 700mm being connected one end with the import of front-mounted pump 11, the design pressure 4.0MPa of front-mounted pump inlet tube 23.
The caliber of electric control valve 25 is 500mm, and pressure rating is 16.0MPa, and design temperature is 230 DEG C.Between the import of electric control valve 25 to front-mounted pump 11, namely belong to low pressure area in front-mounted pump inlet tube 23.The highest point of front-mounted pump inlet tube 23 is provided with gas exhaust piping.Main feed pump 14 export between electric control valve 25, namely belong to zone of high pressure in main feed pump outer pipe 22, design pressure is 16.0MPa, arranges gas exhaust piping at the highest point of main feed pump outer pipe 22.On front-mounted pump inlet tube 23, be also provided with nozzle flowmeter 24 simultaneously.
Front-mounted pump 11, main feed pump 14, main feed pump inlet tube 21, main feed pump outer pipe 22, electric control valve 25 and front-mounted pump inlet tube 23 constitute the pressure loop of the annular meeting GB/T3216 standard-required, ensure the stability of this pressure loop internal pressure.
Front-mounted pump inlet tube 23 is also connected with water charging system 4, water charging system 4 comprises small pump 41, small pump for water regulating valve 42 and small pump outlet exhaust-valve 43, be connected for water regulating valve 42 by small pump 41 and small pump between moisturizing water source 44 with front-mounted pump inlet tube 23, small pump for water regulating valve 42 entrance point with export exhaust-valve 43 by small pump between moisturizing water source 44 and be connected.
Meanwhile, bypass emptying pipe 26 on front-mounted pump inlet tube 23, emptying pipe 26 is provided with emptying electric control valve 27, to regulate the opening and closing of emptying pipe 26, and the flow after emptying pipe 26 unlatching.Emptying pipe 26 and emptying electric control valve 27 form emptying system.
Meanwhile, main pneumatic cut-off valve 32 is also provided with between emptying pipe 26 and water charging system 4.
A kind of nuclear power station main feed pump variable speed performance test system of the present invention, a set of lubricating oil system is also equipped with, lubricating oil system 5 comprises a set of lubricating oil station 51, and by the fuel supply line 52 that lubricating oil station 51 is connected with front-mounted pump 11, motor 12, gear-box 13 and the lubricating oil inlet on main feed pump 14, and by return tube 53 that lubricating oil station 51 is connected with front-mounted pump 11, motor 12, gear-box 13 and the lubricating oil outlet on main feed pump 14.The fuel delivery of lubricating oil station 51 is 630L/min, charge oil pressure is 0.6MPa, lubricating oil outlet place on lubricating oil inlet place on front-mounted pump 11, motor 12, gear-box 13 and main feed pump 14 and front-mounted pump 11, motor 12, gear-box 13 and main feed pump 14 is equipped with oil pressure adjusting valve 54, ensures that the lubricating oil pressure of each bearing in front-mounted pump 11, motor 12, gear-box 13 and main feed pump 14 is 0.15 ~ 0.25MPa.
A kind of nuclear power station main feed pump variable speed performance test system of the present invention, a set of cooling system is also equipped with, comprise cooling pond 61, cooling waterpump 62, first cooling water intake pipe 63, second cooling water intake pipe 64, first cooling water outlet pipe 65, second cooling water outlet pipe 66, and coolant outlet 67.Cooling waterpump 62 connects cooling pond 61, so that the cold water in cooling pond is imported cooling system, cooling waterpump 62 connects the cooler inlet on motor 12 by the first cooling water intake pipe 63, the import of the cooling jacket at front-mounted pump 11 two ends, the cooling water intake of the cooling jacket import at main feed pump 14 two ends, the cooling water intake of the mechanical seal of front-mounted pump 11 and the mechanical seal of main feed pump 14.Cooling waterpump 62 connects the import of the cooler of lubricating oil station 51 by the second cooling water intake pipe 64.First cooling water intake pipe 63 is provided with the first cooling water intake valve 68, second cooling water intake pipe 64 and is provided with the second cooling water intake valve 69, and cooling waterpump 62 is provided with pressure gauge, and monitoring cooling water pressure, ensures each equipment cooling-down effect.Cooler outlet on motor 12, the outlet of the cooling jacket at front-mounted pump 11 two ends, the coolant outlet of the outlet of the cooling jacket at main feed pump 14 two ends, the mechanical seal of front-mounted pump 11, and the coolant outlet of the mechanical seal of main feed pump 14 connects coolant outlet 67 by the first cooling water outlet pipe 65, the outlet of the cooler of lubricating oil station 51 connects coolant outlet 67 by the second cooling water outlet pipe 66, to be discharged by cooling water.
High tension distribution system simultaneously gone back by front-mounted pump 11, motor 12, gear-box 13 and main feed pump 14 simultaneously, the capacity of described high tension distribution system is 35kVA, primary voltage is 10kV, after being convertible into 6.6kV or 3.3kV utilization voltage, power to front-mounted pump 11, motor 12, gear-box 13 and main feed pump 14.Described frequency variator simultaneously, drives main feed pump 14 variable frequency starting, alleviates inrush current to the impact of electrical network.Variable frequency range 0 ~ the 60Hz of described frequency variator.
When making a kind of nuclear power station main feed pump variable speed performance test system of the present invention test main feed pump, first open cooling water system 6, lubricating oil system 5 and water charging system 4.
When carrying out normal temperature medium temperature and regulating, when the temperature of front-mounted pump 11 import is more than or equal to 40 DEG C, open emptying electric control valve 27 and main pneumatic cut-off valve 32, the described pressure loop of described circulation is lowered the temperature, make the temperature of front-mounted pump 11 import between 30 ~ 40 DEG C, pressure is about 1.0MPa, when front-mounted pump 11 inlet temperature is more than or equal to 40 DEG C, open emptying electric control valve 27 and main pneumatic cut-off valve 32 gradually and monitor the flow of small pump for water regulating valve 42, to make pressure in front-mounted pump inlet tube 23 at about 2.5Mpa.When temperature is less than or equal to 30 DEG C, closes emptying electric control valve 27 and main pneumatic cut-off valve 32 gradually and monitor the flow of small pump for water regulating valve 42, to make pressure in front-mounted pump inlet tube 23 at about 2.5Mpa.Front-mounted pump 11 import is provided with temperature transmitter, measures the temperature of front-mounted pump 11 import, is provided with pressure transmitter, measures the pressure in front-mounted pump inlet tube 23.
When normal temperature performance test is carried out to main feed pump, first starting electrical machinery 12, motor 12 drives main feed pump 14 to operate, the initiation culture of motor 12 is 35Hz, then motor 12 works successively 3min successively under 40Hz, 45Hz and 50Hz, then, the adjustment of normal temperature medium temperature is carried out to described pressure loop, the properties data of main feed pump 14 under collection normal temperature.Then crawl closes electric control valve 25, until the output flow of main feed pump 14 according to after stablizing 2 ~ 3min, gathers the properties data of main feed pump 14 under normal temperature.Crawl opens electric control valve 25 again, and according to the maximum output flow of main feed pump 14 to minimum output flow, then gather the properties data of main feed pump 14 under a normal temperature, compared with the data gathered with last time, deviation must not more than 3%.
When carrying out variable speed performance test to main feed pump 14, first the control of normal temperature medium temperature is carried out to described pressure loop, by the Stress control in described pressure loop at 2.0MPa.The frequency of motor 12 is modulated 47.7Hz, 41.3Hz respectively, 43.1Hz, 41.3Hz, 36.7,32.1Hz, 27.5Hz, 22.4Hz, the rotating speed of main feed pump 14 correspondence is 5200r/min, 4950r/min, 4700r/min, 4500r/min, 4000r/min, 3500r/min, 3000r/min, 2500r/min, carry out Normal Temperature to main feed pump 14.And the distance host performance data under main feed pump 14 normal temperature during each rotating speed is sent to independent of a kind of nuclear power station main feed pump variable speed performance test system of the present invention, described distance host prints the change curve of the various performance of main feed pump 14 about rotating speed.
Main feed pump 14 and pressure loop arrange one-time detection instrument, as flowmeter, torsionmeter, pressure transmitter, temperature transmitter etc.The relevant parameter detected, the analog amount converting 4 ~ 20mA to uploads in operation cabinet, and read by distance host, and carry out following work, test data gathers automatically, and database preparation also prints; Test data sheet preserves inquiry automatically; Test data completes node-by-node algorithm, curve after generating automatically, the work such as interpolation, printing test report, drafting characteristic curve.
Remote host data is monitored, and distance host monitoring interface can reflect the operating condition of test of system, can to this test loop Real-Time Monitoring, display and warning.The control clicking main monitored picture can amplify automatically and other three secondary computers of the monitoring of display monitoring point show the magnified picture of each control respectively, and display each monitory point Real-Time Monitoring, display and warning automatically.Test method and process of the test are all by 1 grade of requirement in GB/T 3216 " rotary motive power pump hydraulic performance acceptance trial 1 grade and 2 grades " (being equivalent to ISO9906).
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (5)
1. a nuclear power station main feed pump variable speed performance test system, comprises the front-mounted pump, motor, gear-box and the main feed pump that axially connect successively; It is characterized in that:
It is also equipped with frequency variator;
Be connected by main feed pump inlet tube between described preposition delivery side of pump and the import of described main feed pump;
The outlet of described main feed pump connects main feed pump outer pipe, the import of described front-mounted pump connects front-mounted pump inlet tube, be provided with electric control valve between the outlet of described main feed pump outer pipe and the import of described front-mounted pump inlet tube, described front-mounted pump inlet tube is provided with nozzle flowmeter.
2. a kind of nuclear power station main feed pump variable speed performance test system according to claim 1, is characterized in that: on described front-mounted pump inlet tube, also side is connected to water charging system and emptying system;
Described water charging system comprises moisturizing water source, small pump, small pump for water regulating valve and small pump outlet exhaust-valve, is connected for water regulating valve by described small pump and described small pump between described moisturizing water source with described front-mounted pump inlet tube, the entrance point of described small pump confession water regulating valve with also export exhaust-valve by described small pump between described moisturizing water source and be connected;
Described emptying system comprises an emptying pipe, and described emptying pipe is positioned at the entrance point of main pneumatic cut-off valve, and described emptying pipe is provided with emptying electric control valve.
3. a kind of nuclear power station main feed pump variable speed performance test system according to claim 1, it is characterized in that: it is also equipped with a set of lubricating oil system, comprise lubricating oil station, and by the fuel supply line that described lubricating oil station is connected with the lubricating oil inlet on described main feed pump with described front-mounted pump, described motor, described gear-box, and by return tube that described lubricating oil station is connected with the lubricating oil outlet on described main feed pump with described front-mounted pump, described motor, described gear-box.
4. a kind of nuclear power station main feed pump variable speed performance test system according to claim 3, it is characterized in that: it is also equipped with a set of cooling system, comprise cooling pond, cooling waterpump, first cooling water intake pipe, first cooling water outlet pipe, and coolant outlet, described cooling waterpump connects described cooling pond, described cooling waterpump connects described motor by the first cooling water intake pipe, described front-mounted pump and described main feed pump, described first cooling water intake pipe is provided with the first cooling water intake valve, described motor, described front-mounted pump and between described main feed pump and described coolant outlet by described first cooling water outlet pipe connect.
5. a kind of nuclear power station main feed pump variable speed performance test system according to claim 4, is characterized in that: described cooling system also comprises the second cooling water intake pipe and the second cooling water outlet pipe; Described second cooling water intake pipe connects described cooling waterpump and described lubricating oil station, and described second cooling water outlet pipe connects described coolant outlet and described lubricating oil station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510225472.1A CN104806534A (en) | 2015-05-05 | 2015-05-05 | System for testing variable rotating speed performance of main water feed pump of nuclear power station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510225472.1A CN104806534A (en) | 2015-05-05 | 2015-05-05 | System for testing variable rotating speed performance of main water feed pump of nuclear power station |
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| CN104806534A true CN104806534A (en) | 2015-07-29 |
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| CN201510225472.1A Pending CN104806534A (en) | 2015-05-05 | 2015-05-05 | System for testing variable rotating speed performance of main water feed pump of nuclear power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110469498A (en) * | 2019-08-30 | 2019-11-19 | 中国联合工程有限公司 | A kind of large-scale vertical pump complete machine aqueous medium experimental rig |
| RU2716939C1 (en) * | 2019-02-20 | 2020-03-17 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Control method of operating mode of booster pump station |
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| RU2716939C1 (en) * | 2019-02-20 | 2020-03-17 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Control method of operating mode of booster pump station |
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