CN102053225B - Nuclear motor performance verification device - Google Patents
Nuclear motor performance verification device Download PDFInfo
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- CN102053225B CN102053225B CN200910109644.3A CN200910109644A CN102053225B CN 102053225 B CN102053225 B CN 102053225B CN 200910109644 A CN200910109644 A CN 200910109644A CN 102053225 B CN102053225 B CN 102053225B
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- loca
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- level motor
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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 nuclear power field, particularly relate to a kind of core level motor performance demo plant.
Background technology
According to the requirement of nuclear safety codes; for guaranteeing nuclear power station energy safe operation under operating mode after normal operating condition, nuclear accident operating mode and accident; protection public health and safety, must carry out a series of design test to nuclear safety system and equipment, can checking perform its expectation function.For core level motor, to need in simulating Safety shell the performance test under heat power and electrochemical conditions during accident, the core of this test is: the realization of operating mode harsh and unforgiving environments operating mode after accident and accident in containment, and investigates the load running ability of core level motor in specific heat power and chemical environment.
Existing core level motor load test is mainly adopted in two ways, and the first: in the physical environment of normal temperature and pressure, is directly connected motor (core level motor) with load, drives load to carry out work, obtain corresponding data by motor; It two is: be placed in the physical environment of normal temperature and pressure by motor, and fixed installation is on the ground to ensure the rigidity of installation; And the container interior (e.g., all kinds of chemical industry mixing plant) of certain heat power and electrochemical conditions is fixed in its load, and be directly connected with load by motor, drive load running work by motor, motor runs the heat produced and distributes directly to environment.Inventor finds in the practice of the invention, in above-mentioned two schemes, there is following weak point: motor is all be in the physical environment under normal temperature and pressure, the service data under normal temperature and pressure can only be obtained, the performance data that it runs under specific heat power and electrochemical conditions cannot be obtained; In addition, because motor is directly connected with load, motor and load are in transmission process, the drive bearing of motor needs to bear 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, inherently causes damage to equipment (core level motor).
Summary of the invention
Problem to be solved by this invention is, a kind of core level motor performance demo plant is provided, the performance of core level motor under specific heat power and electrochemical conditions can either be verified, simultaneously, equipment (core level motor) damage can be reduced, the utilization rate of raising equipment, the serviceable life of extension device.
In order to solve the problem, embodiments provide a kind of core level motor performance demo plant, comprising:
Enclosed pressure vessel LOCA stove, for simulating thermal technology in nuclear power plant containment shell and chemical environment, described LOCA stove comprises the confined space be made up of upper low head, cylindrical shell;
Core level motor, is fixedly installed in described LOCA stove;
Load, is arranged on outside described LOCA stove;
Intermediate transmission assembly, is arranged on the cylindrical shell of described LOCA stove, and for connecting described core level motor and described load, described core level motor drives described loaded work piece; Described intermediate transmission assembly comprises: intermediate shaft and sliding bearing, and described intermediate shaft is socketed in described sliding bearing; Described core level motor is connected with described intermediate shaft respectively by diaphragm coupling with described load.
Further, described core level motor is fixed on the low head in described LOCA stove.
Further, described intermediate shaft is fixed on by plain bearing housing on the wall of the cylindrical shell of described LOCA stove.
Further, the cylindrical shell wall of described intermediate shaft and described LOCA stove is fixed by packing seal.
Further, the maximum temperature of described LOCA furnace inner space is 156 DEG C, and top pressure is 0.56MPaa, and chemical mediator is the water vapour be filled with, and the chemical mixing solution of the NaOH sprayed and boric acid.
Further, at the working stage of described load, the range of temperature of described LOCA furnace inner space is: 110 DEG C-80 DEG C, and described LOCA furnace pressure variation range is: 0.3MPaa-0.1MPaa.
Further, described in described core level driven by motor during loaded work piece, described core level motor is run the heat produced and is dispelled the heat by spray chemical mixing solution.
Embodiment provided by the invention, has following beneficial effect;
Core level motor is fixed in the confined pressure container LOCA stove of a specific heat power and chemical environment by the present invention, load is fixed in the normal temperature and pressure physical environment outside LOCA stove, drive load running work by core level motor, achieve the performance verification of core level motor under specific heat power and electrochemical conditions.
In addition, be connected by core level motor with load by intermediate transmission assembly, its intermediate transmission assembly matching film plate shaft coupling makes core level motor drive load running work; In the transmission process of intermediate transmission assembly, diaphragm coupling, by the compensation to load axis and the relative displacement of core level electrical axis, eliminates moment of flexure, makes the intermediate shaft of intermediate transmission assembly only bear moment of torsion; The sliding bearing of intermediate transmission assembly, by sliding, eliminates the axial force of load, makes sliding bearing only bear radial force.Therefore, in transmission process, intermediate transmission assembly decreases and bears pressure, meanwhile, protects again equipment (core level motor), decreases equipment damage, improves the utilization rate of equipment, extends the serviceable life of equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of a kind of core level motor performance demo plant of the present invention;
Fig. 2 is the structural representation of the intermediate transmission assembly of the embodiment of a kind of core level motor performance demo plant of the present invention;
Schematic diagram when Fig. 3 is the diaphragm coupling work of the embodiment of a kind of core level motor performance demo plant of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, it is the structural representation of the embodiment of a kind of core level of the present invention motor performance demo plant; As shown in Figure 1, described device comprises: enclosed pressure vessel LOCA stove 1 and core level motor and load, intermediate transmission assembly 2, diaphragm coupling 3, packing seal 4, motor support platform 6 and bearing 8
Wherein, core level motor is fixed in described LOCA stove 1; In the present embodiment, this LOCA stove 1 is an enclosed pressure vessel, can simulate the heat power during there is nuclear accident in nuclear power plant containment shell and/or after accident and chemical environment 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 the space of a sealing.
This core level motor is connected by described intermediate transmission assembly 2 with the load be positioned at outside LOCA stove 1, and drives this loaded work piece, and this intermediate transmission assembly 2 is arranged on the cylindrical shell 5 of LOCA stove 1.In specific implementation, this load can be 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 LOCA stove 1.
Refer to Fig. 2 again, for the structural representation of the intermediate transmission assembly of the embodiment of a kind of core level motor performance demo plant of the present invention, as shown in Figure 2, this intermediate transmission assembly 2 comprises: intermediate shaft 21 and sliding bearing 22, this sliding bearing 22 is hollow structure, and this intermediate shaft 21 is socketed in this sliding bearing 22.
Further as shown in Figure 2, this intermediate transmission assembly 2 also comprises: sliding bearing sleeve 23 and plain bearing housing 24.
In specific implementation, sliding bearing 22 is coated by described sliding bearing sleeve 23, for supporting 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 produced when eliminating load running.This intermediate shaft 21 and be all placed on plain bearing housing 24 by the sliding bearing 22 that this sliding bearing sleeve 23 is coated, this intermediate shaft 21 is fixed on the wall of cylindrical shell 5 of LOCA stove by this plain bearing housing 24.
Further as shown in Figure 1, core level motor is positioned on motor support platform 6, and is fixed on the low head 71 in this LOCA stove, in specific implementation, this motor support platform 6 can be fixed on the low head 71 in this LOCA stove by bracket, and this kind of fixed form can increase rigidity.This LOCA stove 1, by several bearing 8, fixes on the ground in vertical mode, can ensure the rigidity in the transmission process of this core level motor and load.
Shown in composition graphs 1, the wall between this intermediate shaft 21 and this cylindrical shell 5 be fixed on by plain bearing housing 24 on the wall of the cylindrical shell 5 of LOCA stove is fixed by packing seal 4.Particularly, due to high temperature and corrosive chemical environments can be modeled in LOCA stove 1, preferably, this sliding bearing 22 adopts polyetheretherketonematerials materials, the self-lubricating property good by its material and excellent resistance to chemical attack, heat-resisting and resistance to elevated temperatures meet the requirement of the specific operation of this test, in addition, preferably, the gap of F8/h7 can be adopted to coordinate between this sliding bearing 22 and this intermediate shaft 21.
Core level motor is connected with intermediate shaft 21 respectively by diaphragm coupling 3 with load, and because diaphragm coupling interior diaphragm has elasticity, this diaphragm coupling 3 can be used for the relative displacement compensating described load and described core level motor.Its compensation principle can see following Fig. 3.
Refer to Fig. 3, the schematic diagram when diaphragm coupling for the embodiment of a kind of core level motor performance demo plant of the present invention works, as shown in Figure 3:
Due to the inside and outside temperature difference of LOCA stove 1, the thermal expansion of cylindrical shell 5 generation radial relative to load of sliding bearing 22 and LOCA stove, the axis b of described core level motor and the axis a of described load is caused to produce relative displacement, as shown in Figure 3, due to thermal expansion, the position of core level motor produces skew (as downward shift, not shown), move to b ' position to represent with its axis b in figure, namely relative displacement is created between a and b ', this relative displacement can be compensated by the elastic deformation of the diaphragm of diaphragm coupling 3, intermediate shaft 21 is produced without moment of flexure in transmission process, therefore, in transmission process, this intermediate shaft 21 only bears moment of torsion, this sliding bearing 22 only bears radial force.
According to the requirement of IEEE334-2006 and RCCE2005 specification, core level motor needs to have and in the environment of steam and chemical spray solution, keeps "on" position 15 days, the performance of wherein full and down running in 190 hours.In order to verify this performance of core level motor, the temperature and pressure in LOCA stove 1 is all higher than extraneous physical environment.Particularly, in this enclosed pressure vessel LOCA stove 1, be filled with steam and chemical solution, the thermal technology during realizing nuclear accident and/or after accident and the simulation of chemical environment, such as, in one embodiment, wherein, the maximum temperature in the space in described LOCA stove 1 is 156 DEG C, and top pressure is 0.56MPaa, chemical mediator is the water vapour be filled with, and the chemical mixing solution of the NaOH sprayed and boric acid.
Core level motor is fixed in LOCA stove 1, namely be under being in the interior environmental baseline simulated of this LOCA stove 1, when this core level motor drives load to carry out operation work by described intermediate shaft 21, it is in the operation phase, in this LOCA stove 1, the range of temperature in space is: 110 DEG C-80 DEG C, in this LOCA stove 1, pressure range is: 0.3MPaa-0.1MPaa.
Be understandable that, above-mentioned situation is only citing, can carry out similar application in other situation, and such as, the size ab ' of axis relative displacement can change, or under different situations, the position of a and b ' can change, and does not repeat at this.
In specific implementation, because the space in this LOCA stove 1 is relatively limited or relatively narrow and small, but its internal temperature is higher, and therefore, in order to protect core level motor, it is when driving described load running, needs to be dispelled the heat by spray chemical solution.
Core level motor is fixed in the confined pressure container LOCA stove of a specific heat power and chemical environment by the present invention, load is fixed in the normal temperature and pressure physical environment outside LOCA stove, drive load running work by core level motor, achieve the performance verification of core level motor under specific heat power and electrochemical conditions.
In addition, be connected by core level motor with load by intermediate transmission assembly, its intermediate transmission assembly matching film plate shaft coupling makes core level motor drive load running work; In the transmission process of intermediate transmission assembly, diaphragm coupling, by the compensation to load axis and the relative displacement of core level electrical axis, eliminates moment of flexure, makes the intermediate shaft of intermediate transmission assembly only bear moment of torsion; The sliding bearing of intermediate transmission assembly, by sliding, eliminates the axial force of load, makes sliding bearing only bear radial force.Therefore, in transmission process, intermediate transmission assembly decreases and bears pressure, meanwhile, protects again equipment (core level motor), decreases equipment damage, improves the utilization rate of equipment, extends the serviceable life of equipment.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.
Claims (7)
1. a core level motor performance demo plant, is characterized in that, comprising:
Enclosed pressure vessel LOCA stove, for simulating heat power in nuclear power plant containment shell and chemical environment, described LOCA stove comprises the confined space be made up of upper low head, cylindrical shell;
Core level motor, is fixedly installed in described LOCA stove;
Load, is arranged on outside described LOCA stove;
Intermediate transmission assembly, is arranged on the cylindrical shell of described LOCA stove, and for connecting described core level motor and described load, described core level motor drives described loaded work piece, achieves the performance verification of core level motor under specific heat power and electrochemical conditions; Described intermediate transmission assembly comprises: intermediate shaft and sliding bearing, and described intermediate shaft is socketed in described sliding bearing; When described load running, described sliding bearing can horizontally slip along described intermediate shaft; Described core level motor is connected with described intermediate shaft respectively by diaphragm coupling with described load.
2. device as claimed in claim 1, is characterized in that:
Described core level motor is fixed on the low head in described LOCA stove.
3. device as claimed in claim 1 or 2, is characterized in that:
Described intermediate shaft is fixed on by plain bearing housing on the wall of the cylindrical shell of described LOCA stove.
4. device as claimed in claim 3, is characterized in that:
The cylindrical shell wall of described intermediate shaft and described LOCA stove is fixed by packing seal.
5. the device as described in any one of claim 1-2, is characterized in that:
The maximum temperature of described LOCA furnace inner space is 156 DEG C, and top pressure is 0.56MPaa, and chemical mediator is the water vapour be filled with, and the chemical mixing solution of the NaOH sprayed and boric acid.
6. device as claimed in claim 5, is characterized in that:
At the working stage of described load, the range of temperature of described LOCA furnace inner space is: 110 DEG C-80 DEG C, and described LOCA furnace pressure variation range is: 0.3MPaa-0.1MPaa.
7. device as claimed in claim 6, is characterized in that:
Described in described core level driven by motor during loaded work piece, described core level motor is run the heat produced and is dispelled 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 |
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| 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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| CN102053225A CN102053225A (en) | 2011-05-11 |
| CN102053225B true 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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| 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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| CN101477174A (en) * | 2008-10-31 | 2009-07-08 | 北京理工大学 | Complex load behavior simulation and performance test apparatus for servo system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10282193A (en) * | 1997-04-07 | 1998-10-23 | Toshiba Mach Co Ltd | Apparatus for testing load of electric motor |
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2009
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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 |
| CN2914104Y (en) * | 2006-05-22 | 2007-06-20 | 比亚迪股份有限公司 | Testing device of electric motor |
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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. |