CN102053225A - Nuclear motor performance verification device - Google Patents
Nuclear motor performance verification device Download PDFInfo
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- CN102053225A CN102053225A CN2009101096443A CN200910109644A CN102053225A CN 102053225 A CN102053225 A CN 102053225A CN 2009101096443 A CN2009101096443 A CN 2009101096443A CN 200910109644 A CN200910109644 A CN 200910109644A CN 102053225 A CN102053225 A CN 102053225A
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- loca
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Abstract
The invention discloses a nuclear motor performance verification device, which comprises a closed pressure container, namely LOCA furnace, a nuclear motor, a load, and an intermediate transmission assembly, wherein the LOCA furnace is used for simulating thermodynamics and chemical environment in the safety shell of a nuclear power plant and comprises a closed space formed by an upper plug, a lower plug and a barrel; the nuclear motor is fixedly arranged in the LOCA furnace; the load is arranged outside the LOCA furnace; and the intermediate transmission assembly is inserted into the barrel body of the LOCA furnace for connecting the nuclear motor and the load, and the nuclear motor drives the load to work. The device can verify the performance of the nuclear motor under specific thermotechnical and chemical conditions, and at the same time, reduce equipment damage and improve the utilization rate of equipment.
Description
Technical field
The present invention relates to the nuclear power field, relate in particular to a kind of nuclear level motor performance demo plant.
Background technology
Requirement according to nuclear safety codes; for guaranteeing nuclear power station energy safe operation under operating mode after normal operating condition, nuclear accident operating mode and the accident; protection public health and safety must be carried out a series of design test to nuclear safety system and equipment, and can checking carry out its expectation function.At nuclear level motor, need in the simulating Safety shell performance test under the heat power and electrochemical conditions during the accident, the core of this test is: the realization of operating mode harsh and unforgiving environments operating mode after accident and the accident in the containment, and investigate nuclear level motor in specific heat power and the load running ability in the chemical environment.
The main dual mode that adopts of existing nuclear level motor load test, the first: in the physical environment of normal temperature and pressure, motor (nuclear level motor) is directly linked to each other with load, carry out work, obtain corresponding data by the motor-driven load; It two is: motor is placed in the physical environment of normal temperature and pressure, and the fixed installation rigidity to guarantee to install on the ground; And (as, all kinds of chemical industry mixing plants) is fixed in the container of certain heat power and electrochemical conditions in its load, and motor is directly linked to each other with load, and by motor-driven load running work, motor moves the heat that is produced and directly distributes to environment.The inventor finds in implementing process of the present invention, in above-mentioned two kinds of schemes, have following weak point: motor all is in the physical environment that is under the normal temperature and pressure, can only obtain the service data under the normal temperature and pressure, can't obtain the performance data that it moves under specific heat power and electrochemical conditions; In addition, because motor directly links to each other with load, motor and loading in the transmission process, drive axle of motor is held and need be born moment of flexure and axial force moment of torsion, the rolling bearing of motor then needs to bear axial force and radial force, like this, must cause damage to equipment (nuclear level motor).
Summary of the invention
Problem to be solved by this invention is, a kind of nuclear level motor performance demo plant is provided, and can either verify that nuclear level motor is in specific heat power and the performance under the electrochemical conditions, simultaneously, can reduce equipment (nuclear level motor) damage, improve the utilization rate of equipment, prolong the serviceable life of equipment.
In order to address the above problem, the embodiment of the invention provides a kind of nuclear level motor performance demo plant, comprising:
Enclosed pressure vessel LOCA stove is used to simulate thermal technology and chemical environment in the nuclear power plant containment shell, and described LOCA stove comprises the confined space of being made up of last low head, cylindrical shell;
Nuclear level motor is fixedly installed in the described LOCA stove;
Load is arranged on outside the described LOCA stove;
Middle transmission assembly is arranged on the cylindrical shell of described LOCA stove, is used to connect described nuclear level motor and described load, the described loaded work piece of described nuclear level motor-driven.
Further, described middle transmission assembly comprises: intermediate shaft and sliding bearing, described intermediate shaft is socketed in the described sliding bearing.
Further, described nuclear level motor is connected with described intermediate shaft by diaphragm coupling respectively with described load.
Further, described nuclear level motor is fixed on the interior low head of described LOCA stove.
Further, described intermediate shaft is fixed in by plain bearing housing on the wall of cylindrical shell of described LOCA stove.
Further, the cylindrical shell wall of described intermediate shaft and described LOCA stove fixes by packing seal.
Further, the maximum temperature of described LOCA furnace inner space is 156 ℃, and top pressure is 0.56MPaa, and chemical mediator is the water vapour that charges into, and the NaOH of spray and the chemical mixing solution of boric acid.
Further, at the working stage of described load, the range of temperature of described LOCA furnace inner space is: 110 ℃-80 ℃, described LOCA furnace pressure variation range is: 0.3MPaa-0.1MPaa.
Further, during the described loaded work piece of described nuclear level driven by motor, the heat that described nuclear level motor operation produces dispels the heat by spray chemical mixing solution.
Embodiment provided by the invention has following beneficial effect;
The present invention will examine the level motor and be fixed in the closed pressure vessel LOCA stove of a specific heat power and chemical environment, load is fixed in the outer normal temperature and pressure physical environment of LOCA stove, by nuclear level motor-driven load running work, realized that nuclear level motor is at specific heat power and the performance verification under the electrochemical conditions.
In addition, will examine the level motor and be connected by middle transmission assembly with load, transmission assembly matching film plate shaft coupling makes nuclear level motor-driven load running work in the middle of it; In the transmission process of middle transmission assembly, diaphragm coupling has been eliminated moment of flexure by to the compensation of load axis with the relative displacement of nuclear level electrical axis, and the intermediate shaft of transmission assembly has only born moment of torsion in the middle of making; The sliding bearing of middle transmission assembly has been eliminated the axial force of load by sliding, and makes sliding bearing only bear radial force.Therefore, in the transmission process, middle transmission assembly has reduced and has born pressure, simultaneously, has protected equipment (a nuclear level motor) again, has reduced equipment damage, improves the utilization rate of equipment, has prolonged the serviceable life of equipment.
Description of drawings
Fig. 1 is a kind of grade structural representation of the embodiment of motor performance demo plant of examining of the present invention;
Fig. 2 is a kind of structural representation of examining the middle transmission assembly of grade embodiment of motor performance demo plant of the present invention;
Synoptic diagram when Fig. 3 works for a kind of diaphragm coupling of examining grade embodiment of motor performance demo plant of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Referring to Fig. 1, examine grade structural representation of the embodiment of motor performance demo plant for the present invention is a kind of; As shown in Figure 1, described device comprises: enclosed pressure vessel LOCA stove 1 and nuclear level motor and load, middle transmission assembly 2, diaphragm coupling 3, packing seal 4, motor support platform 6 and bearing 8
Wherein, nuclear level motor is fixed in the described LOCA stove 1; In the present embodiment, this LOCA stove 1 is an enclosed pressure vessel, can simulate to take place during the nuclear accident in the nuclear power plant containment shell and/or heat power and chemical environment after the accident in this LOCA stove 1.Particularly, this LOCA stove 1 comprises upper cover 72, low head 71 and cylindrical shell 5, this upper cover 72 and low head 71 can be ellipse head or flat head, and this upper cover 72, low head 71 are connected with the top and bottom of this cylindrical shell 5 respectively, form a sealed space.
Further as shown in Figure 1, nuclear level motor is positioned on the motor support platform 6, and is fixed on the interior low head 71 of this LOCA stove, in the specific implementation, this motor support platform 6 can be fixed on the low head 71 in this LOCA stove by bracket, and this kind fixed form can increase rigidity.This LOCA stove 1 fixes on the ground in vertical mode by several bearings 8, can guarantee the rigidity in the transmission process of this nuclear grade motor and load.
The load outer with being positioned at LOCA stove 1 of this nuclear level motor is connected by described centre transmission assembly 2, and drives this loaded work piece, and this centre transmission assembly 2 is arranged on the cylindrical shell 5 of LOCA stove 1.In the specific implementation, this load can be a mechanical load, such as pump; Also can be the load of simulation, such as motor with reciprocating movement, hydraulic dynamometer etc., it be arranged in the physical environment of the normal temperature and pressure outside the LOCA stove 1.
See also Fig. 2 again, be a kind of structural representation of examining the middle transmission assembly of grade embodiment of motor performance demo plant of the present invention, as shown in Figure 2, this centre transmission assembly 2 comprises: intermediate shaft 21 and sliding bearing 22, this sliding bearing 22 is a hollow structure, and this intermediate shaft 21 is socketed in this sliding bearing 22.
Further as shown in Figure 2, this centre transmission assembly 2 also comprises: sliding bearing sleeve 23 and plain bearing housing 24.
In the specific implementation, sliding bearing 22 is coated by described sliding bearing sleeve 23, is used to support described intermediate shaft 21, particularly, when described load running, described sliding bearing 22 can horizontally slip along described intermediate shaft 21, to support described intermediate shaft 21, the axial force that is produced when eliminating load running.This intermediate shaft 21 and the sliding bearing 22 that is coated by this sliding bearing sleeve 23 all place on the plain bearing housing 24, and this intermediate shaft 21 is fixed in by this plain bearing housing 24 on the wall of cylindrical shell 5 of LOCA stove.
In conjunction with shown in Figure 1, be fixed in this intermediate shaft 21 on the wall of cylindrical shell 5 of LOCA stove and the wall between this cylindrical shell 5 by plain bearing housing 24 and fix by packing seal 4.Particularly, owing to can be modeled to high temperature and chemical corrosion environment in the LOCA stove 1, preferably, this sliding bearing 22 adopts polyetheretherketonematerials materials, satisfy the requirement of the specific operation of this test by the good self-lubricating property of its material and good resistance to chemical attack, heat-resisting and resistance to elevated temperatures, in addition, preferably, can adopt the gap of F8/h7 to cooperate between this sliding bearing 22 and this intermediate shaft 21.
Nuclear level motor is connected with intermediate shaft 21 by diaphragm coupling 3 respectively with load, because the diaphragm coupling interior diaphragm has elasticity, this diaphragm coupling 3 can be used for compensating the relative displacement of described load and described nuclear level motor.Its compensation principle can be referring to following Fig. 3.
See also Fig. 3, the synoptic diagram when working for a kind of diaphragm coupling of examining grade embodiment of motor performance demo plant of the present invention, as shown in Figure 3:
Because the inside and outside temperature difference of LOCA stove 1, the thermal expansion that the cylindrical shell 5 of sliding bearing 22 and LOCA stove radially produces with respect to load, cause the axis b of described nuclear level motor and the axis a of described load to produce relative displacement, as shown in Figure 3, because thermal expansion, the position of nuclear level motor produces skew (as skew up and down, not shown), moving to b ' position with its axis b among the figure represents, be to have produced relative displacement between a and the b ', this relative displacement meeting compensates by the elastic deformation of the diaphragm of diaphragm coupling 3, intermediate shaft 21 no moment of flexure in transmission process is produced, therefore, in the transmission process, 21 of this intermediate shafts bear moment of torsion, and this sliding bearing 22 is bearing radial force only.
According to the requirement of IEEE334-2006 and RCCE2005 standard, a nuclear level motor need have in the environment of steam and chemical spray solution and kept "on" position 15 days, wherein the performance of full and down running in 190 hours.In order to verify this performance of nuclear level motor, the temperature and pressure in the LOCA stove 1 all is higher than extraneous physical environment.Particularly, in this enclosed pressure vessel LOCA stove 1, charge into steam and chemical solution, realize during the nuclear accident and/or the simulation of thermal technology after the accident and chemical environment, for example, in one embodiment, wherein, the maximum temperature in the space in the described LOCA stove 1 is 156 ℃, and top pressure is 0.56MPaa, chemical mediator is the water vapour that charges into, and the NaOH of spray and the chemical mixing solution of boric acid.
Nuclear level motor is fixed in the LOCA stove 1, promptly be to be under the environmental baseline of being simulated in this LOCA stove 1, when this nuclear level motor moves work by described intermediate shaft 21 driving loads, it is in the operation phase, the range of temperature in space is in this LOCA stove 1: 110 ℃-80 ℃, this LOCA stove 1 internal pressure variation range is: 0.3MPaa-0.1MPaa.
Be understandable that above-mentioned situation only for for example, can similarly be used in other situation, such as, the big or small ab ' of axis relative displacement can change, and perhaps under the different situations, the position of a and b ' can change etc., does not give unnecessary details at this.
In the specific implementation, because the space in this LOCA stove 1 is relatively limited or narrow and small relatively, but its internal temperature is higher, and therefore, in order to protect nuclear level motor, it need dispel the heat by the spray chemical solution when driving described load running.
The present invention will examine the level motor and be fixed in the closed pressure vessel LOCA stove of a specific heat power and chemical environment, load is fixed in the outer normal temperature and pressure physical environment of LOCA stove, by nuclear level motor-driven load running work, realized that nuclear level motor is at specific heat power and the performance verification under the electrochemical conditions.
In addition, will examine the level motor and be connected by middle transmission assembly with load, transmission assembly matching film plate shaft coupling makes nuclear level motor-driven load running work in the middle of it; In the transmission process of middle transmission assembly, diaphragm coupling has been eliminated moment of flexure by to the compensation of load axis with the relative displacement of nuclear level electrical axis, and the intermediate shaft of transmission assembly has only born moment of torsion in the middle of making; The sliding bearing of middle transmission assembly has been eliminated the axial force of load by sliding, and makes sliding bearing only bear radial force.Therefore, in the transmission process, middle transmission assembly has reduced and has born pressure, simultaneously, has protected equipment (a nuclear level motor) again, has reduced equipment damage, improves the utilization rate of equipment, has prolonged the serviceable life of equipment.
Above disclosed only is a kind of preferred embodiment of the present invention, certainly can not limit the present invention's interest field with this, one of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description, and, still belong to the scope that invention is contained according to the equivalent variations that claim of the present invention is done.
Claims (9)
1. a nuclear level motor performance demo plant is characterized in that, comprising:
Enclosed pressure vessel LOCA stove is used to simulate heat power and chemical environment in the nuclear power plant containment shell, and described LOCA stove comprises the confined space of being made up of last low head, cylindrical shell;
Nuclear level motor is fixedly installed in the described LOCA stove;
Load is arranged on outside the described LOCA stove;
Middle transmission assembly is arranged on the cylindrical shell of described LOCA stove, is used to connect described nuclear level motor and described load, the described loaded work piece of described nuclear level motor-driven.
2. device as claimed in claim 1 is characterized in that:
The transmission assembly comprises in the middle of described: intermediate shaft and sliding bearing, described intermediate shaft is socketed in the described sliding bearing.
3. device as claimed in claim 2 is characterized in that:
Described nuclear level motor is connected with described intermediate shaft by diaphragm coupling respectively with described load.
4. device as claimed in claim 1 is characterized in that:
Described nuclear level motor is fixed on the interior low head of described LOCA stove.
5. as claim 3 or 4 described devices, it is characterized in that:
Described intermediate shaft is fixed in by plain bearing housing on the wall of cylindrical shell of described LOCA stove.
6. device as claimed in claim 5 is characterized in that:
The cylindrical shell wall of described intermediate shaft and described LOCA stove fixes by packing seal.
7. as each described device of claim 1-4, it is characterized in that:
The maximum temperature of described LOCA furnace inner space is 156 ℃, and top pressure is 0.56MPaa, and chemical mediator is the water vapour that charges into, and the NaOH of spray and the chemical mixing solution of boric acid.
8. device as claimed in claim 7 is characterized in that:
At the working stage of described load, the range of temperature of described LOCA furnace inner space is: 110 ℃-80 ℃, described LOCA furnace pressure variation range is: 0.3MPaa-0.1MPaa.
9. device as claimed in claim 8 is characterized in that:
During the described loaded work piece of described nuclear level driven by motor, the heat that described nuclear level motor operation produces dispels the heat by spray chemical mixing solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910109644.3A CN102053225B (en) | 2009-11-11 | 2009-11-11 | Nuclear motor performance verification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910109644.3A CN102053225B (en) | 2009-11-11 | 2009-11-11 | Nuclear motor performance verification device |
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| Publication Number | Publication Date |
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| CN102053225A true CN102053225A (en) | 2011-05-11 |
| CN102053225B CN102053225B (en) | 2015-05-13 |
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| CN200910109644.3A Active CN102053225B (en) | 2009-11-11 | 2009-11-11 | Nuclear motor performance verification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608531A (en) * | 2012-03-26 | 2012-07-25 | 江苏新誉重工科技有限公司 | Type testing device of wind driven generator |
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| US5485491A (en) * | 1994-03-31 | 1996-01-16 | Westinghouse Electric Corporation | Online diagnostic system for rotating electrical apparatus |
| US5623104A (en) * | 1995-03-10 | 1997-04-22 | Toyota Jidosha Kabushiki Kaisha | Apparatus for testing power performance of electric motor for electric vehicle |
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| MARIE-FRANCE ROBBE ET AL.: "Hydrodynamic loads on a PWR primary circuit due to a LOCA", 《NUCLEAR ENGINEERING AND DESIGN》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608531A (en) * | 2012-03-26 | 2012-07-25 | 江苏新誉重工科技有限公司 | Type testing device of wind driven generator |
| CN102608531B (en) * | 2012-03-26 | 2014-11-19 | 江苏新誉重工科技有限公司 | Type testing device of wind driven generator |
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| CN102053225B (en) | 2015-05-13 |
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Address after: 518000 Guangdong province Futian District Shangbu Road West of the city of Shenzhen Shenzhen science and technology building 15 layer (1502-1504, 1506) Patentee after: CHINA NUCLEAR POWER TECHNOLOGY RESEARCH INSTITUTE Patentee after: China General Nuclear Power Corporation Address before: 518000 Guangdong city of Shenzhen province Futian District science and technology building, Shangbu Road 15 Patentee before: Zhongkehua Nuclear Power Technology Institute Co., Ltd. Patentee before: China Guangdong Nuclear Power Group Co., Ltd. |