CN104240775A - Nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device - Google Patents
Nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device Download PDFInfo
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- CN104240775A CN104240775A CN201410454499.3A CN201410454499A CN104240775A CN 104240775 A CN104240775 A CN 104240775A CN 201410454499 A CN201410454499 A CN 201410454499A CN 104240775 A CN104240775 A CN 104240775A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention relates to a nuclear reactor cooling device, and particularly relates to a nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device. A foot seat of a nuclear reactor interlayer body is arranged in an inner cavity of a lower-hemispheric bottom cover, the outer surface of the bottom of the lower-hemispheric bottom cover is provided with support foot stools arranged on the bottom plane of a reactor bottom pool, a forced cooling barrel is fixed above the lower-hemispheric bottom cover in through flange sealing, an upper-hemispheric top cover is fixed above the forced cooling barrel through flange sealing, a filler sealing hole is formed in the top of the upper-hemispheric top cover, the excircle of a control wire conduit is sealed by the sealing filler in the filler sealing hole in the top of the nuclear reactor interlayer body. The improvement is as follows: spiral guide plates are arranged on the cylindrical inside wall of the forced cooling barrel, the inner edges of the spiral guide plates and the outer edge of the nuclear reactor interlayer body are in clearance fit; a high-pressure pipeline externally connected to the lower-hemispheric bottom cover is connected with a flange exhaust opening in a flange copper alloy pump, a back return pipeline externally connected with the upper-hemispheric top cover is led to a flange pressure return opening in the flange copper alloy pump.
Description
Technical field
The present invention relates to a kind of forced cooling device for removing decay heat from nuclear reactor, International Classification of Patents is G21C15/18, is specifically related to a kind of nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device.
Background technology
Structure for generation of the nuclear reactor of electric energy has various ways, with regard to cooling medium recycle design, is broadly divided into the reactor of cooling medium forced circulation and Natural Circulation.As everybody knows, its cooling medium of the reactor of forced circulation is generally water, reactor core nuclear reaction occurring through it circulates, and takes away heat, flow to the outside of reactor vessel by pipeline from this reactor core, thermal release in special heat exchanger, and then draw back reactor core with water pump.Known what is called " centralized " reactor does not have exterior line, establishes in the container of reactor core in heat exchanger is located at.But such reactor still comprises ebullator, for carrying cooling medium with the pressure of less handkerchief to reactor core and interchanger.A major defect of cooling medium forced circulation reactor needs in container, arrange complicated cooling line, arranges mainly in order to the delivery outlet at interchanger is to transport pump cooling medium like this, and then be transported to reactor core.Other weak point is, inside establishes cooling line complicated like this to need large diameter reactor, therefore needs the volume being reduced reactor by cooling medium high-speed circulating.For simplifying cooling line, known scheme is, only relies on cooling medium Natural Circulation to realize at nuclear reactor internal.
Chinese patent CN102081976A discloses the complete Passive containment cooling system of a kind of Large Copacity.This containment cooling system can utilize the thermal parameter that sensor collection containment is relevant, follow the tracks of cooling procedure, multiple hutch in order to store different cooling medium is set above containment, realizes the Dynamic controlling to containment cooling power by the selection of cooling medium kind and the adjustment of coolant flow; By adopting general passive control module, the startup of this containment cooling system and whole service process can not rely on external impetus supply completely, therefore have non-energy dynamic characteristic completely.This invention employs multiple low boiling cooling medium, makes system become complicated, and adds construction and maintenance cost.
The harm that any glitch of nuclear facilities brings is huge, and maintenance cost is high, therefore, carries out safe and efficient cooling significant to reactor.
Summary of the invention
The top water tank chilled water utilization factor that the object of the invention is to for existing in prior art is not high, pcs system is complicated, by problems such as pressure and temperature regulating water flow existing defects, there is provided one can improve chilled water utilization ratio, when close reactor planform size is all constant, by increasing external force circulation, remove the forced cooling device of decay heat from nuclear reactor.
The present invention is by the following technical solutions:
A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device, nuclear reactor interlayer body runners is positioned at lower semisphere bottom inner chamber, described lower semisphere bottom bottom outer surface there is support foot rest be placed on reactor Di Chi baseplane, there is flange seal to be fixed wtih above described lower semisphere bottom and force cooling cylindrical shell, flange seal is had to be fixed wtih episphere top cover above described pressure cooling cylindrical shell, episphere top cover top is outside upper packing seal hole, airtight and watertight padding hermetic seal in described packing seal hole the pilot pipe cylindrical at described nuclear reactor interlayer body top, as improvement: described pressure cooling cylindrical shell cylinder madial wall has spiral deflector, spiral deflector inward flange and described nuclear reactor interlayer outer rim clearance fit, described lower semisphere bottom is circumscribed with pressure duct and is connected to flange escape hole on flange copper alloy pump, described episphere top cover is circumscribed with back pressure pipeline towards the flange back pressure mouth on described flange copper alloy pump, flange pressure relief opening on described flange copper alloy pump there is drain line to lead to the lower end in circulating cooling pond, flange suction inlet on described flange copper alloy pump there is high pressure suction pipe lead to the upper end in described circulating cooling pond, between described circulating cooling pond two ends, arranged crosswise has the straight plate of water conservancy diversion, square hole ports input shaft outer end on flange copper alloy pump is connected to power source,
Described flange copper alloy pump entirety comprises flange-interface housing, pump head end cap and water machine end cap, the described upper and lower both sides of flange-interface housing have water pump spiral casing and water machine spiral case respectively, shell inner hole on described flange-interface housing is fixed a pair ceramic bearing cylindrical, ceramic bearing hole is fixed wtih converter main shaft, and the upper and lower both sides of converter main shaft are fixed wtih water pump vane and water machine runner respectively;
Described water pump spiral casing has described flange escape hole perpendicular in the tangential direction of described converter main shaft, the pump head stomidium of described water pump spiral casing and the pump cover step surface of described pump head end cap detachable airtight fastening; Pump row end face of flange on described flange escape hole there are 4 to 8 pump row flange holes; Tangential direction perpendicular to described converter main shaft on described water machine spiral case has described flange escape orifice, the water machine stomidium of described water machine spiral case and the cover step surface of described water machine end cap detachable airtight fastening; Machine on described flange escape orifice is let out on end face of flange 83 has 4 to 8 machines to let out flange hole;
Described pump head end cap there is described flange suction inlet become to be arranged vertically with described pump cover step surface central axis, described pump head end cap there is pump cover axis hole become coaxially arranged with described pump cover step surface central axis, be clearance fit between described pump cover axis hole and described square hole ports input shaft, in the packing seal groove on described pump cover axis hole, have O-ring seal to press described square hole ports input shaft periphery; The axle head square hole of described square hole ports input shaft lower end slidably coordinates for axis with between the pump end square shaft of described converter main shaft upper end; Pump on described flange suction inlet is inhaled on end face of flange has 4 to 8 pumps to inhale flange hole; Described water machine end cap has described flange back pressure mouth become coaxially arranged with described cover step surface central axis, the machine on described flange back pressure mouth is inhaled on end face of flange has 4 to 8 machines to inhale flange hole;
Described square hole ports input shaft outer round surface laser spraying has a layer thickness to be the aldary hard anticorrosive material of 0.38 to 0.42 millimeter, described aldary hard anticorrosive material is made up of the element of following percentage by weight: Cu:40-42, Ni:5.2-5.4, Ti:4.4-4.6, Mo:3.7-3.9, Zn:3.6-3.8, W:2.4-2.6, Cr:1.2-1.4, and surplus is Fe and inevitable impurity; The weight percent content of described impurity is: O.07 C is less than, Si is less than 0.23, Mn is less than 0.28, S is less than O.Ol3, P and is less than O.018; The overall material of described ceramic bearing is aluminium oxide ceramics, with AL2O3 (alundum (Al2O3)) compound substance for base-material, be equipped with mineralizer MgO (magnesium oxide), BaCO3 (barium carbonate) and bonding clay composition, and the weight percent content of its each component is AL2O3:94-95; MgO:1.3-1.4; BaCO3:1.5-1.6; Bonding clay: 2.1-2.2.
As further improvement: described spiral deflector outward flange is 16 to 18 degree along forcing the lead angle cooling cylindrical shell cylinder madial wall.
As further improvement: there is housing internal threads described shell inner hole both sides respectively facing to described water pump spiral casing inner chamber and described water machine spiral case inner chamber, described converter main shaft water pump side has pump bearing section successively, pump flat key section, pump thread segment and described pump end square shaft, water pump nut and described pump thread segment rotational fastener, described converter main shaft hydraulic turbine side organic bearing section successively, machine thread segment and machine end optical axis, a pair described ceramic bearing hole respectively with described pump bearing section cylindrical and described machine bearing section cylindrical interference fit, a pair described ceramic bearing cylindrical and described shell inner hole transition fit, pair of bearings tight loop external thread and described housing internal threads regulate the ceramic bearing axial location be fixed wtih described in a pair, described bearing tight loop one side end face there are four blind manipulation notches, runner internal thread and the described machine thread segment threaded engagement of described water machine runner are fastening, the through hole inner circle of described water pump vane and described pump flat key section cylindrical transition fit, for being slidably matched between the square shaft four sides on the square hole wall in described axle head square hole and described pump end square shaft.
As further improvement: runner unthreaded hole and the described machine end optical axis of described runner internal thread bottom are slidably matched, described runner unthreaded hole there are seven runner screws, described machine end optical axis there are four optical axis pin-and-holes, retaining pin external thread section and described runner screw rotational fastener, for being slidably matched between described retaining pin straight pin section and described optical axis pin-and-hole.
The invention has the beneficial effects as follows:
In the pressure cooling cylindrical shell that nuclear reactor interlayer body is laid, particularly force that cooling cylindrical shell 90 cylinder madial wall has spiral deflector, spiral deflector outward flange is that 16 to 18 degree settings enhance cooling effect along forcing the lead angle of cooling cylindrical shell cylinder madial wall, described episphere top cover is circumscribed with back pressure pipeline towards the flange back pressure mouth on described flange copper alloy pump, return pressure can effectively be reclaimed, share power source load and reached 30%, achieved and fall energy object;
Arranged crosswise between the two ends of circulating cooling pond is utilized to have the straight plate of water conservancy diversion, there is drain line to lead to the lower end in circulating cooling pond by the flange pressure relief opening on flange copper alloy pump simultaneously, flange suction inlet on described flange copper alloy pump there is high pressure suction pipe lead to the upper end in described circulating cooling pond, recirculated cooling water is fully dispelled the heat;
Flange copper alloy pump one-piece construction adopts Flange joint airtight fixing safe and reliable, and wherein flange-interface housing both sides Central Symmetry is provided with water pump spiral casing and water machine spiral case, and mass action power is balanced; Shell inner hole both sides particularly on flange-interface housing are all provided with housing internal threads, adapted pair of bearings tight loop adjusts tools for alignment blind manipulation notches by socket wrench specially adapted for it and adjusts to the right place, guarantee that water pump vane and water machine runner are accurately positioned among water pump spiral casing and water machine spiral case along with a pair ceramic bearing respectively, show its energy conversion efficiency up to 68% through experiment.Particularly the overall outside surface of nuclear reactor interlayer body is in the high pressure state of cooling all the time, counteracts the partial high pressure impact of nuclear reactor interlayer body inside;
The runner unthreaded hole of water machine runner there are seven runner screws misplace corresponding with four optical axis pin-and-holes on machine end optical axis, guarantee that between the runner internal thread of water machine runner and machine thread segment, small rotation regulates, just can guarantee that retaining pin aims at runner screw and optical axis pin-and-hole simultaneously, realize water machine runner can bear positive and negative relative to converter main shaft then can not unclamp, safe and reliable;
The axle head square hole being also provided with pump end square shaft and square hole ports input shaft at the pump thread segment of converter main shaft is outward slidably matched, and achieves external impetus input; And square hole wall port has the square hole groove of 2 × 45 degree, square shaft four sides port has the square shaft groove of 2 × 45 degree, is convenient to aim at import; Particularly square shaft four adjacent edges on four sides there is the square shaft chamfering of 2 × 45 degree, guarantee precision-fit transmitting large torque between square shaft four sides and square hole wall;
Key components and parts of the present invention, the square hole ports input shaft 77 of dynamic seal has one deck aldary hard anticorrosive material at outer round surface laser spraying, and the overall material of ceramic bearing 73 of kinetic friction bearing part is aluminium oxide ceramics, not only corrosion-resistant but also wear-resistant.
Accompanying drawing explanation
Fig. 1 is schematic top plan view of the present invention.
Fig. 2 is the sectional view by episphere top cover 97 center in Fig. 1.
Fig. 3 is the independent sectional view forcing cooling cylindrical shell 90 in Fig. 2.
Fig. 4 is the diagrammatic cross-section of flange copper alloy pump 60 in Fig. 1.
Fig. 5 is flange-interface housing 61 diagrammatic cross-section in Fig. 4.
Fig. 6 is pump head end cap 41 diagrammatic cross-section in Fig. 4.
Fig. 7 is water machine end cap 81 diagrammatic cross-section in Fig. 4.
Fig. 8 is bearing tight loop 75 diagrammatic cross-section in Fig. 4.
Fig. 9 is bearing tight loop 75 vertical view in Fig. 8.
Figure 10 is enlarged local section schematic diagram near the water pump nut 72 in Fig. 4.
Figure 11 is the A-A sectional view in Figure 10.
Figure 12 is the B-B sectional view in Figure 10.
Figure 13 is the C-C sectional view in Figure 10.
Figure 14 is the axle head square hole 71 position enlarged drawing of square hole ports input shaft 77 in Figure 10.
Figure 15 is pump flat key section 34 and the transmission flat key 11 position enlarged drawing of converter main shaft 33 in Figure 10.
Figure 16 is enlarged local section schematic diagram near the retaining pin 19 in Fig. 4.
Figure 17 is the D-D sectional view in Figure 16.
Figure 18 is the machine thread segment 36 position enlarged drawing of converter main shaft 33 in Figure 16.
Figure 19 is the runner internal thread 26 position profile of Figure 16 moderate water apparatus runner 88.
Embodiment
In conjunction with the accompanying drawings and embodiments structure of the present invention and principle of work are further elaborated:
A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device, nuclear reactor interlayer body 30 runners is positioned at lower semisphere bottom 92 inner chamber, described lower semisphere bottom 92 bottom outer surface there is support foot rest 20 be placed on baseplane, pond 10 at the bottom of reactor, there is flange seal to be fixed wtih above described lower semisphere bottom 92 and force cooling cylindrical shell 90, flange seal is had to be fixed wtih episphere top cover 97 above described pressure cooling cylindrical shell 90, episphere top cover 97 top is outside upper packing seal hole 79, airtight and watertight padding hermetic seal in described packing seal hole 79 pilot pipe 98 cylindrical at described nuclear reactor interlayer body 30 top, as improvement: described pressure cooling cylindrical shell 90 cylinder madial wall has spiral deflector 91, spiral deflector 91 inward flange and described nuclear reactor interlayer body 30 outward flange clearance fit, described lower semisphere bottom 92 is circumscribed with pressure duct 94 and is connected to flange escape hole 69 on flange copper alloy pump 60, described episphere top cover 97 is circumscribed with back pressure pipeline 87 towards the flange back pressure mouth 89 on described flange copper alloy pump 60, flange pressure relief opening 82 on described flange copper alloy pump 60 there is drain line 28 lead to the lower end in circulating cooling pond 50, flange suction inlet 65 on described flange copper alloy pump 60 there is high pressure suction pipe 56 lead to the upper end in described circulating cooling pond 50, between described circulating cooling pond 50 two ends, arranged crosswise has the straight plate 21 of water conservancy diversion, square hole ports input shaft 77 outer end on flange copper alloy pump 60 is connected to power source 70,
Described flange copper alloy pump 60 entirety comprises flange-interface housing 61, pump head end cap 41 and water machine end cap 81, described flange-interface housing about 61 both sides have water pump spiral casing 67 and water machine spiral case 66 respectively, shell inner hole 63 on described flange-interface housing 61 is fixed a pair ceramic bearing 73 cylindrical, ceramic bearing 73 endoporus is fixed wtih converter main shaft 33, and converter main shaft about 33 both sides are fixed wtih water pump vane 44 and water machine runner 88 respectively;
Described water pump spiral casing 67 has described flange escape hole 69 perpendicular in the tangential direction of described converter main shaft 33, and the pump head stomidium 64 of described water pump spiral casing 67 is detachable airtight fastening with the pump cover step surface 46 of described pump head end cap 41; Pump row end face of flange 53 on described flange escape hole 69 there are 4 to 8 pump row flange holes 55; Tangential direction perpendicular to described converter main shaft 33 on described water machine spiral case 66 has described flange escape orifice 82, and the water machine stomidium 68 of described water machine spiral case 66 is detachable airtight fastening with the cover step surface 86 of described water machine end cap 81; Machine on described flange escape orifice 82 is let out on end face of flange 83 has 4 to 8 machines to let out flange hole 85;
Described pump head end cap 41 there is described flange suction inlet 65 become to be arranged vertically with described pump cover step surface 46 central axis, described pump head end cap 41 there is pump cover axis hole 47 become coaxially arranged with described pump cover step surface 46 central axis, be clearance fit between described pump cover axis hole 47 and described square hole ports input shaft 77, in the packing seal groove 74 on described pump cover axis hole 47, have O-ring seal to press described square hole ports input shaft 77 periphery; The axle head square hole 71 of described square hole ports input shaft 77 lower end slidably coordinates for axis with between the pump end square shaft 31 of described converter main shaft 33 upper end; Pump on described flange suction inlet 65 is inhaled on end face of flange 43 has 4 to 8 pumps to inhale flange hole 45; Described water machine end cap 81 has described flange back pressure mouth 89 become coaxially arranged with described cover step surface 86 central axis, the machine on described flange back pressure mouth 89 is inhaled on end face of flange 93 has 4 to 8 machines to inhale flange hole 95;
Described square hole ports input shaft 77 outer round surface laser spraying has a layer thickness to be the aldary hard anticorrosive material of 0.38 to 0.42 millimeter, described aldary hard anticorrosive material is made up of the element of following percentage by weight: Cu:40-42, Ni:5.2-5.4, Ti:4.4-4.6, Mo:3.7-3.9, Zn:3.6-3.8, W:2.4-2.6, Cr:1.2-1.4, and surplus is Fe and inevitable impurity; The weight percent content of described impurity is: O.07 C is less than, Si is less than 0.23, Mn is less than 0.28, S is less than O.Ol3, P and is less than O.018; The described overall material of ceramic bearing 73 is aluminium oxide ceramics, with AL2O3 (alundum (Al2O3)) compound substance for base-material, be equipped with mineralizer MgO (magnesium oxide), BaCO3 (barium carbonate) and bonding clay composition, and the weight percent content of its each component is AL2O3:94-95; MgO:1.3-1.4; BaCO3:1.5-1.6; Bonding clay: 2.1-2.2.
As further improvement: described spiral deflector 91 outward flange is 16 to 18 degree along forcing the lead angle cooling cylindrical shell 90 cylinder madial wall.
As further improvement: there is housing internal threads 62 described shell inner hole 63 both sides respectively facing to described water pump spiral casing 67 inner chamber and described water machine spiral case 66 inner chamber, described converter main shaft 33 water pump side has pump bearing section 35 successively, pump flat key section 34, pump thread segment 32 and described pump end square shaft 31, water pump nut 72 and described pump thread segment 32 rotational fastener, described converter main shaft 33 hydraulic turbine side organic bearing section 37 successively, machine thread segment 36 and machine end optical axis 39, described a pair ceramic bearing 73 endoporus respectively with described pump bearing section 35 cylindrical and described machine bearing section 37 cylindrical interference fit, described a pair ceramic bearing 73 cylindrical and described shell inner hole 63 transition fit, pair of bearings tight loop 75 external thread and described housing internal threads 62 regulate ceramic bearing 73 axial location be fixed wtih described in a pair, described bearing tight loop 75 1 side end face there are four blind manipulation notches 76, the runner internal thread 26 of described water machine runner 88 is fastening with described machine thread segment 36 threaded engagement, through hole inner circle 22 and the described pump flat key section 34 cylindrical transition fit of described water pump vane 44, for being slidably matched between the square shaft four sides 14 on the square hole wall 13 in described axle head square hole 71 and described pump end square shaft 31.
As further improvement: runner unthreaded hole 29 and the described machine end optical axis 39 of described runner internal thread 26 bottom are slidably matched, described runner unthreaded hole 29 there are seven runner screws 15, described machine end optical axis 39 there are four optical axis pin-and-holes 16, retaining pin 19 external thread section and described runner screw 15 rotational fastener, for being slidably matched between described retaining pin 19 straight pin section and described optical axis pin-and-hole 16.
As further improvement: described square hole wall 13 degree of depth is 46 to 48 millimeters, described square hole wall 13 liang of opposite side distance are from being 26 to 28 millimeters, and described square hole wall 13 port has the square hole groove 23 of 2 × 45 degree; Described square shaft four sides 14 length are 42 to 44 millimeters, described square hole wall 13 liang of opposite side distance are from being 26 to 28 millimeters, described square shaft four sides 14 ports have the square shaft groove 24 of 2 × 45 degree, and four adjacent edges at described square shaft four sides 14 have the square shaft chamfering 17 of 2 × 45 degree.
As further improvement: runner bucket 84 layout angle on described water machine runner 88 becomes 44 to 46 to spend angle with described converter main shaft 33 rotation.
In embodiment:
Spiral deflector 91 outward flange is along forcing the lead angle cooling cylindrical shell 90 cylinder madial wall to be 17 degree; Power source 70 selects variable-frequency motor, and the waterline 25 of the safety anti-explosive water in circulating cooling pond 50 is below packing seal hole 79, and the airtight and watertight padding in packing seal hole 79 presses pilot pipe 98 cylindrical, forms static sealing.
Pressure duct 94 and back pressure pipeline 87 there are water inlet control valve door 96 and outlet water control valve door 78 respectively, are convenient to maintenance process.
Pump on flange suction inlet 65 is inhaled on end face of flange 43 has 6 pumps to inhale flange hole 45, pump row end face of flange 53 on flange escape hole 69 there are 6 pump row flange holes 55, machine on flange escape orifice 82 is let out on end face of flange 83 has 6 machines to let out flange hole 85, and the machine on flange back pressure mouth 89 is inhaled on end face of flange 93 has 6 machines to inhale flange hole 95.
Square hole wall 13 degree of depth is 47 millimeters, and square hole wall 13 liang of opposite side distance are from being 27.1 millimeters; Square shaft four sides 14 length are 43 millimeters, and square hole wall 13 liang of opposite side distance are from being 27 millimeters.
Runner bucket 84 layout angle on water machine runner 88 and converter main shaft 33 rotation are in angle of 45 degrees.
Square hole ports input shaft 77 outer round surface laser spraying has a layer thickness to be the aldary hard anticorrosive material of 0.4 millimeter, aldary hard anticorrosive material is made up of the element of following percentage by weight: Cu:41, Ni:5.3, Ti:4.5, Mo:3.8, Zn:3.7, W:2.5, Cr:1.3, and surplus is Fe and inevitable impurity; The weight percent content of described impurity is: C for O.06, Si is 0.22, Mn is 0.26, S is O.Ol2, P for O.016; The described overall material of ceramic bearing 73 is aluminium oxide ceramics, with AL2O3 (alundum (Al2O3)) compound substance for base-material, be equipped with mineralizer MgO (magnesium oxide), BaCO3 (barium carbonate) and bonding clay composition, and the weight percent content of its each component is AL2O3:94.5; MgO:1.35; BaCO3:1.55; Bonding clay: 2.15.
The course of work of the present invention is as follows:
One, flange copper alloy pump 60 is assembled:
1. adopt and converter main shaft 33 artificial hypothermia is continued to take out for 14 to 15 minutes to subzero 180 to 185 degree, within 1 minute, a pair ceramic bearing 73 is enclosed within pump bearing section 35 and machine bearing section 37 respectively, entirety is placed among the shell inner hole 63 on flange-interface housing 61;
2. pair of bearings tight loop 75 is rotated on the housing internal threads 62 of shell inner hole 63 both sides respectively, adjust tools for alignment blind manipulation notches 76 by socket wrench specially adapted for it to adjust to the right place, guarantee that water pump vane 44 and water machine runner 88 are accurately positioned among water pump spiral casing 67 and water machine spiral case 66 respectively simultaneously;
3. the runner internal thread 26 on water machine runner 88 and machine thread segment 36 rotatable engagement pretension, when 1 the runner screw 15 in the runner screw 15 of 7 on runner unthreaded hole 29 and any 1 the optical axis pin-and-hole 16 in 4 optical axis pin-and-holes 16 on machine end optical axis 39 are on time, by retaining pin 19 external thread section and runner screw 15 rotational fastener, make between retaining pin 19 straight pin section and described optical axis pin-and-hole 16 as being slidably matched.Just can guarantee that retaining pin 19 aims at runner screw 15 and optical axis pin-and-hole 16 simultaneously, realize water machine runner 88 and can bear positive and negative relative to converter main shaft 33 then can not unclamp, safe and reliable;
4. the water board terrace 86 of water machine end cap 81 is aimed at the water machine stomidium 68 of described water machine spiral case 66, and passes through 12 through holes on water board terrace 86 respectively with 12 screws, among airtight 12 screws being fastened on water machine stomidium 68 periphery;
5. the transmission flat key 11 that the keyway on water pump vane 44 through hole is aimed in pump flat key section 34 is pressed into, and makes the through hole inner circle 22 of water pump vane 44 and described pump flat key section 34 cylindrical transition fit;
6. water pump nut 72 and pump thread segment 32 rotational fastener;
7. the pump cover step surface 46 of pump head end cap 41 is aimed at the pump head stomidium 64 of water pump spiral casing 67, and passes through 12 through holes on pump cover step surface 46 respectively with 12 screws, among airtight 12 screws being fastened on pump head stomidium 64 periphery;
8. axle head square hole 71 ecto-entad of square hole ports input shaft 77 passes through the pump cover axis hole 47 on pump head end cap 41, and using pump cover axis hole 47 has in packing seal groove 74 has O-ring seal to press described square hole ports input shaft 77 periphery to form motive seal.Particularly square hole wall 13 port has the square hole groove 23 of 2 × 45 degree, and square shaft four sides 14 ports have the square shaft groove 24 of 2 × 45 degree, is convenient to aim at import; Four adjacent edges at particularly square shaft four sides 14 there is the square shaft chamfering 17 of 2 × 45 degree, guarantees square shaft precision-fit transmitting large torque between 14 and square hole wall 13 on four sides.
Two, flange copper alloy pump 60 pipeline connects:
Square hole ports input shaft 77 outer end of flange copper alloy pump 60 is fixedly connected power source 70 output terminal;
Flange pressure relief opening 82 on described flange copper alloy pump 60 there is drain line 28 lead to the lower end in circulating cooling pond 50, the flange suction inlet 65 on described flange copper alloy pump 60 has high pressure suction pipe 56 lead to the upper end in described circulating cooling pond 50; In circulating cooling pond 50, retaining 5000 cubes is as recirculated cooling water.
Pump on flange suction inlet 65 is inhaled end face of flange 43 and is docked with the end face of flange on high pressure suction pipe 56 is airtight, and it is fastening to mutatis mutandis six pairs of bolt and nut components with the flange hole on high pressure suction pipe 56 that flange hole 45 inhaled by the pump on flange suction inlet 65;
Pressure duct 94 is connected with between the flange escape hole 69 of flange copper alloy pump 60 and described lower semisphere bottom 92, pump row end face of flange 53 on flange escape hole 69 docks with the end face of flange on pressure duct 94 is airtight, and the pump row flange hole 55 on flange escape hole 69 is fastening to mutatis mutandis six pairs of bolt and nut components with the flange hole on pressure duct 94;
Back pressure pipeline 87 is connected with between the flange back pressure mouth 89 of flange copper alloy pump 60 and described episphere top cover 97, machine on flange back pressure mouth 89 is inhaled end face of flange 93 and is docked with the end face of flange on back pressure pipeline 87 is airtight, and it is fastening to mutatis mutandis six pairs of bolt and nut components with the flange hole on back pressure pipeline 87 that flange hole 95 inhaled by the machine on flange back pressure mouth 89;
Machine on flange escape orifice 82 is let out end face of flange 83 and is docked with the end face of flange on drain line 28 is airtight, and it is fastening to mutatis mutandis six pairs of bolt and nut components with the flange hole on drain line 28 that flange hole 85 let out by the machine on flange escape orifice 82; Flange escape orifice 82 place of flange copper alloy pump 60 is connected to the lower end of drain line 28 towards circulating cooling pond 50.
Three, flange copper alloy pump 60 operational process:
Start power source 70 high-power driving flange copper alloy pump 60, power source 70 output terminal is fixedly connected square hole ports input shaft 77 upper end, the axle head square hole 71 of square hole ports input shaft 77 lower end slidably coordinates for axis with between the pump end square shaft 31 of described converter main shaft 33 upper end, converter main shaft 33 High Rotation Speed described in driving; Then the water pump vane 44 on converter main shaft 33 and water machine runner 88 High Rotation Speed is driven.
The centrifugal force utilizing water pump vane 44 High Rotation Speed to produce produces negative pressure at flange suction inlet 65 place, sucks the recirculated cooling water in circulating cooling pond 50 through high pressure suction pipe 56, the centrifugal force utilizing water pump vane 44 High Rotation Speed to produce produces high pressure at water pump spiral casing 67 place, the pressure cycling chilled water of being discharged by flange escape hole 69 is injected into lower semisphere bottom 92, flowing is accelerated along spiral deflector 91, nuclear reactor interlayer body 30 outside surface is lowered the temperature, lead to the flange back pressure mouth 89 described flange copper alloy pump 60 from back pressure pipeline 87 after flowing through episphere top cover 97, act on the runner bucket 84 on converter main shaft 33, by means of runner bucket 84 layout angle on dampener runner 88 and converter main shaft 33 rotation in angle of 45 degrees, promote water machine runner 88 with identical sense of rotation more High Rotation Speed, converter main shaft 33 rotational speed is driven to improve 1 percentage point, share power source 70 load and reach 30%, achieve and fall energy object.
In the pressure cooling cylindrical shell 90 that nuclear reactor interlayer body 30 is laid, particularly force that cooling cylindrical shell 90 cylinder madial wall has spiral deflector 91 to enhance cooling effect, described episphere top cover 97 is circumscribed with back pressure pipeline 87 towards the flange back pressure mouth 89 on described flange copper alloy pump 60, return pressure can effectively be reclaimed, share power source 70 load and reached 30%, achieved and fall energy object;
Arranged crosswise between the two ends of circulating cooling pond 50 is utilized to have the straight plate 21 of water conservancy diversion, the lower end simultaneously will the flange pressure relief opening 82 on flange copper alloy pump 60 having drain line 28 lead to circulating cooling pond 50, flange suction inlet 65 on described flange copper alloy pump 60 there is high pressure suction pipe 56 lead to the upper end in described circulating cooling pond 50, recirculated cooling water is fully dispelled the heat.Particularly the overall outside surface of nuclear reactor interlayer body 30 is in the high pressure state of cooling all the time, counteracts the partial high pressure impact of nuclear reactor interlayer body 30 inside.
Important step flange copper alloy pump 60 one-piece construction of the present invention adopts Flange joint airtight fixing safe and reliable, and wherein flange-interface housing 61 both sides Central Symmetry is provided with water pump spiral casing 67 and water machine spiral case 66, and mass action power is balanced; Shell inner hole 63 both sides particularly on flange-interface housing 61 are all provided with housing internal threads 62, adapted pair of bearings tight loop 75 adjusts tools for alignment blind manipulation notches 76 by socket wrench specially adapted for it and adjusts to the right place, guarantee that water pump vane 44 and water machine runner 88 are accurately positioned among water pump spiral casing 67 and water machine spiral case 66 simultaneously respectively, through its energy conversion efficiency of experiment display up to 68%.
Important step flange copper alloy pump 60 of the present invention has seven runner screws 15 to misplace corresponding with four optical axis pin-and-holes 16 on machine end optical axis 39 on the runner unthreaded hole 29 of water machine runner 88, guarantee that between the runner internal thread 26 of water machine runner 88 and machine thread segment 36, small rotation regulates, just can guarantee that retaining pin 19 aims at runner screw 15 and optical axis pin-and-hole 16 simultaneously, realize water machine runner 88 can bear positive and negative relative to converter main shaft 33 then can not unclamp, safe and reliable.
Important step flange copper alloy pump 60 of the present invention is slidably matched with the axle head square hole 71 of square hole ports input shaft 77 at the outer pump end square shaft 31 that is also provided with of the pump thread segment 32 of converter main shaft 33, achieves external impetus input; And square hole wall 13 port has the square hole groove 23 of 2 × 45 degree, square shaft four sides 14 ports have the square shaft groove 24 of 2 × 45 degree, are convenient to aim at import; Four adjacent edges at particularly square shaft four sides 14 there is the square shaft chamfering 17 of 2 × 45 degree, guarantees square shaft precision-fit transmitting large torque between 14 and square hole wall 13 on four sides.
The key components and parts of important step flange copper alloy pump 60 of the present invention, the square hole ports input shaft 77 of dynamic seal has one deck aldary hard anticorrosive material at outer round surface laser spraying, the overall material of ceramic bearing 73 of kinetic friction bearing part is aluminium oxide ceramics, not only corrosion-resistant but also wear-resistant.
The wear test Data Comparison of (table 1) aluminium oxide ceramics bearing and 316 stainless steel bearings
Can be drawn by the contrasting data of table 1: the corrosion resistant antiwear ability of aluminium oxide ceramics bearing is better than 316 stainless steel bearings far away.
The aldary hard anticorrosive material coating that (table 2) is square hole ports input shaft 77 outside surface, contrasts with the surfaceness extent of damage experimental data of conventional stainless steel
Can be drawn by the contrasting data of table 2: outer round surface laser spraying has the surfaceness extent of damage of the square hole ports input shaft 77 of one deck aldary hard anticorrosive material to be far smaller than the surfaceness extent of damage of conventional stainless steel outside surface.
Claims (4)
1. a nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device, nuclear reactor interlayer body (30) runners is positioned at lower semisphere bottom (92) inner chamber, described lower semisphere bottom (92) bottom outer surface there is support foot rest (20) be placed on pond at the bottom of reactor (10) baseplane, described lower semisphere bottom (92) top has flange seal to be fixed wtih pressure cooling cylindrical shell (90), described pressure cooling cylindrical shell (90) top has flange seal to be fixed wtih episphere top cover (97), episphere top cover (97) top is outside upper packing seal hole (79), airtight and watertight padding hermetic seal in described packing seal hole (79) pilot pipe (98) cylindrical at described nuclear reactor interlayer body (30) top, it is characterized in that: described pressure cooling cylindrical shell (90) cylinder madial wall has spiral deflector (91), spiral deflector (91) inward flange and described nuclear reactor interlayer body (30) outward flange clearance fit, described lower semisphere bottom (92) is circumscribed with pressure duct (94) and is connected to flange escape hole (69) on flange copper alloy pump (60), described episphere top cover (97) is circumscribed with back pressure pipeline (87) towards the flange back pressure mouth (89) on described flange copper alloy pump (60), flange pressure relief opening (82) on described flange copper alloy pump (60) there is drain line (28) towards the lower end of circulating cooling pond (50), flange suction inlet (65) on described flange copper alloy pump (60) there is high pressure suction pipe (56) towards the upper end in described circulating cooling pond (50), between described circulating cooling pond (50) two ends, arranged crosswise has the straight plate of water conservancy diversion (21), square hole ports input shaft (77) outer end on flange copper alloy pump (60) is connected to power source (70), described flange copper alloy pump (60) entirety comprises flange-interface housing (61), pump head end cap (41) and water machine end cap (81), described flange-interface housing (61) has water pump spiral casing (67) and water machine spiral case (66) in both sides up and down respectively, shell inner hole (63) on described flange-interface housing (61) is fixed a pair ceramic bearing (73) cylindrical, ceramic bearing (73) endoporus is fixed wtih converter main shaft (33), and converter main shaft (33) is fixed wtih water pump vane (44) and water machine runner (88) in both sides up and down respectively, described water pump spiral casing (67) has described flange escape hole (69) perpendicular in the tangential direction of described converter main shaft (33), and the pump head stomidium (64) of described water pump spiral casing (67) is detachable airtight fastening with the pump cover step surface (46) of described pump head end cap (41), pump row's end face of flange (53) on described flange escape hole (69) there are 4 to 8 pumps row's flange hole (55), described water machine spiral case (66) has described flange escape orifice (82) perpendicular in the tangential direction of described converter main shaft (33), and the water machine stomidium (68) of described water machine spiral case (66) is detachable airtight fastening with the cover step surface (86) of described water machine end cap (81), machine on described flange escape orifice (82) is let out on end face of flange (83) has 4 to 8 machines to let out flange hole (85), described pump head end cap (41) there is described flange suction inlet (65) become to be arranged vertically with described pump cover step surface (46) central axis, described pump head end cap (41) there is pump cover axis hole (47) become coaxially arranged with described pump cover step surface (46) central axis, be clearance fit between described pump cover axis hole (47) and described square hole ports input shaft (77), in the packing seal groove (74) on described pump cover axis hole (47), have O-ring seal to press described square hole ports input shaft (77) periphery, the axle head square hole (71) of described square hole ports input shaft (77) lower end slidably coordinates for axis with between the pump end square shaft (31) of described converter main shaft (33) upper end, pump on described flange suction inlet (65) is inhaled on end face of flange (43) has 4 to 8 pumps to inhale flange hole (45), described water machine end cap (81) has described flange back pressure mouth (89) become coaxially arranged with described cover step surface (86) central axis, the machine on described flange back pressure mouth (89) is inhaled on end face of flange (93) has 4 to 8 machines to inhale flange hole (95), described square hole ports input shaft (77) outer round surface laser spraying has a layer thickness to be the aldary hard anticorrosive material of 0.38 to 0.42 millimeter, described aldary hard anticorrosive material is made up of the element of following percentage by weight: Cu:40-42, Ni:5.2-5.4, Ti:4.4-4.6, Mo:3.7-3.9, Zn:3.6-3.8, W:2.4-2.6, Cr:1.2-1.4, and surplus is Fe and inevitable impurity, the weight percent content of described impurity is: O.07 C is less than, Si is less than 0.23, Mn is less than 0.28, S is less than O.Ol3, P and is less than O.018, described ceramic bearing (73) overall material is aluminium oxide ceramics, with AL2O3 (alundum (Al2O3)) compound substance for base-material, be equipped with mineralizer MgO (magnesium oxide), BaCO3 (barium carbonate) and bonding clay composition, and the weight percent content of its each component is AL2O3:94-95, MgO:1.3-1.4, BaCO3:1.5-1.6, bonding clay: 2.1-2.2.
2. a kind of nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device according to claim 1, is characterized in that: described spiral deflector (91) outward flange is 16 to 18 degree along forcing the lead angle of cooling cylindrical shell (90) cylinder madial wall.
3. a kind of nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device according to claim 1, it is characterized in that: there is housing internal threads (62) described shell inner hole (63) both sides respectively facing to described water pump spiral casing (67) inner chamber and described water machine spiral case (66) inner chamber, described converter main shaft (33) water pump side has pump bearing section (35) successively, pump flat key section (34), pump thread segment (32) and described pump end square shaft (31), water pump nut (72) and described pump thread segment (32) rotational fastener, described converter main shaft (33) hydraulic turbine side organic bearing section (37) successively, machine thread segment (36) and machine end optical axis (39), described a pair ceramic bearing (73) endoporus respectively with described pump bearing section (35) cylindrical and described machine bearing section (37) cylindrical interference fit, described a pair ceramic bearing (73) cylindrical and described shell inner hole (63) transition fit, pair of bearings tight loop (75) external thread and described housing internal threads (62) regulate ceramic bearing (73) axial location be fixed wtih described in a pair, described bearing tight loop (75) side end face there are four blind manipulation notches (76), the runner internal thread (26) of described water machine runner (88) is fastening with described machine thread segment (36) threaded engagement, the through hole inner circle (22) of described water pump vane (44) and described pump flat key section (34) cylindrical transition fit, the square hole wall (13) in described axle head square hole (71) and the square shaft on described pump end square shaft (31) on four sides between (14) for being slidably matched.
4. a kind of nuclear reactor flange copper alloy aluminum oxide high-pressure cooling device according to claim 3, it is characterized in that: runner unthreaded hole (29) and the described machine end optical axis (39) of described runner internal thread (26) bottom are slidably matched, described runner unthreaded hole (29) there are seven runner screws (15), described machine end optical axis (39) there are four optical axis pin-and-holes (16), retaining pin (19) external thread section and described runner screw (15) rotational fastener, for being slidably matched between described retaining pin (19) straight pin section and described optical axis pin-and-hole (16).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110783662A (en) * | 2019-10-23 | 2020-02-11 | 中铁轨道交通装备有限公司 | Battery box system with high heat dissipation function and control method |
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| CN201187473Y (en) * | 2008-04-07 | 2009-01-28 | 上海凯士比泵有限公司 | Residual heat discharge pump for nuclear power station |
| CN203532309U (en) * | 2013-09-22 | 2014-04-09 | 上海阿波罗机械股份有限公司 | Low pressure safety-injection pump |
| CN103956193A (en) * | 2014-03-31 | 2014-07-30 | 中国核电工程有限公司 | Passive containment heat removal system |
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2014
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|---|---|---|---|---|
| JP2001296387A (en) * | 2000-02-08 | 2001-10-26 | Toshiba Corp | Reactor cooling equipment and its operational method |
| CN201187473Y (en) * | 2008-04-07 | 2009-01-28 | 上海凯士比泵有限公司 | Residual heat discharge pump for nuclear power station |
| CN203532309U (en) * | 2013-09-22 | 2014-04-09 | 上海阿波罗机械股份有限公司 | Low pressure safety-injection pump |
| CN103956193A (en) * | 2014-03-31 | 2014-07-30 | 中国核电工程有限公司 | Passive containment heat removal system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110783662A (en) * | 2019-10-23 | 2020-02-11 | 中铁轨道交通装备有限公司 | Battery box system with high heat dissipation function and control method |
| CN110783662B (en) * | 2019-10-23 | 2021-06-15 | 中铁轨道交通装备有限公司 | Battery box system with high heat dissipation function and control method |
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| CN104240775B (en) | 2016-08-31 |
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