CN104240775B - A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller - Google Patents
A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller Download PDFInfo
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- CN104240775B CN104240775B CN201410454499.3A CN201410454499A CN104240775B CN 104240775 B CN104240775 B CN 104240775B CN 201410454499 A CN201410454499 A CN 201410454499A CN 104240775 B CN104240775 B CN 104240775B
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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
Abstract
The present invention relates to a kind of nuclear reactor chiller, a kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller, nuclear reactor interlayer body runners is positioned at lower semisphere bottom inner chamber, support foot rest is had to be placed on reactor Di Chi baseplane on lower semisphere bottom bottom outer surface, the fixed pressure of flange seal is had to cool down cylinder above lower semisphere bottom, force there is flange seal fixed episphere top cover above cooling cylinder, episphere top cover top is outside upper packing seal hole, the airtight and watertight padding hermetic seal in packing seal hole on nuclear reactor interlayer body top pilot pipe cylindrical, as improvement: force there is spiral deflector on cooling cylinder cylinder medial wall, spiral deflector inward flange and nuclear reactor interlayer outer rim matched in clearance；It is circumscribed with the flange outlet that pressure duct is connected on flange copper alloy pump on lower semisphere bottom, episphere top cover is circumscribed with back pressure pipeline and leads to the flange back pressure mouth on 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 chiller.
Background technology
There is various ways for producing the structure of the nuclear reactor of electric energy, for coolant endless form, substantially can divide
For coolant forced circulation and the reactor of Natural Circulation.It will be appreciated that its coolant of the reactor of forced circulation, it is usually
Water, is circulated through its reactor core that nuclear reaction occurs, takes away heat from this reactor core, flowed to outside reactor vessel by pipeline
Portion, is discharged into heat in special heat exchanger, draws back reactor core with water pump the most again.Known so-called " centralized " reactor
Exterior line, heat exchanger is not had to set in being located in the container of reactor core.But, such reactor still includes circulating pump,
For carrying coolant with the pressure of less handkerchief to reactor core and exchanger.One major defect of coolant forced circulation reactor
Being the cooling line needing to arrange complexity in container, so setting is primarily to cold to transport pump at the delivery outlet of exchanger
But agent, is transported to reactor core the most again.Other weak point is, inside setting the most complicated cooling line needs the reaction of major diameter
Heap, therefore needs to be reduced the volume of reactor by coolant high-speed circulating.For simplifying cooling line, known scheme is,
Nuclear reactor internal relies solely on coolant Natural Circulation and realizes.
The open a kind of complete Passive containment cooling system of Large Copacity of Chinese patent CN102081976A.This containment is cold
But system may utilize the thermal parameter that sensor collection containment is relevant, follows the tracks of cooling procedure, is provided above at containment multiple
In order to store the hutch of different coolant, realized containment by the selection of coolant kind and the regulation of coolant flow
The dynamic control of cooling power；By using general passive control unit, the startup of this containment cooling system and whole fortune
Row process can be completely independent of external impetus supply, therefore has passive characteristic completely.This invention employs multiple low
Boiling point coolant, makes system become complicated, and adds construction and maintenance cost.
The harm that any glitch of nuclear facilities is brought is huge, and maintenance cost is high, therefore, enters reactor
The safe and efficient cooling of row is significant.
Summary of the invention
Present invention aims to top water tank cooling water use efficiency present in prior art the highest, pcs system
Complexity, by problems such as pressure and temperature regulating water flow existing defects, it is provided that one can improve cooling water application efficiency,
In the case of close reactor planform size is the most constant, by increasing external force circulation, remove decay from nuclear reactor
The forced cooling device of heat.
The present invention is by the following technical solutions:
A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller, nuclear reactor interlayer body runners is positioned at lower semisphere
Bottom inner chamber, described lower semisphere bottom bottom outer surface has support foot rest be placed on reactor Di Chi baseplane, described
Lower semisphere bottom above have the fixed cooling cylinder of forcing of flange seal, have flange seal above described pressure cooling cylinder
Fixed episphere top cover, episphere top cover top is outside upper packing seal hole, the described airtight and watertight padding in packing seal hole
Hermetic seal the pilot pipe cylindrical at described nuclear reactor interlayer body top, as improvement: described pressure cooling cylinder
Spiral deflector, spiral deflector inward flange is had to join with described nuclear reactor interlayer outer rim gap on body cylinder medial wall
Close；The flange outlet that pressure duct is connected on flange copper alloy pump it is circumscribed with on described lower semisphere bottom, described
It is circumscribed with back pressure pipeline on episphere top cover and leads to the flange back pressure mouth on described flange copper alloy pump, described flange copper
Drain line is had to lead to the lower end in circulating cooling pond, described flange copper alloy pump on flange excretion mouth on alloy pump
On flange suction inlet on have high pressure suction pipe to lead to the upper end in described circulating cooling pond, described circulating cooling pond two ends
Between interlaced arrangement have the straight plate of water conservancy diversion, the square hole ports power shaft outer end on flange copper alloy pump is connected to power source；
Described flange copper alloy pump entirety includes flange-interface housing, pump head end cap and water machine end cap, described method
The blue upper and lower both sides of interface hull have water pump spiral casing and water machine spiral case respectively, solid in the described shell inner hole on flange-interface housing
Fixed a pair ceramic bearing cylindrical, ceramic bearing hole fixed transducer main shaft, the upper and lower both sides of transducer main shaft are the most fixed
Water pump vane and water machine runner；
It is perpendicular in the tangential direction of described transducer main shaft have described flange outlet on described water pump spiral casing,
The pump head stomidium of described water pump spiral casing and the detachable airtight fastening of pump cover step surface of described pump head end cap；Described flange
4 to 8 pump row's flange holes are had on pump row's end face of flange in outlet；It is perpendicular to described transducer on described water machine spiral case
Described flange excretion mouth, the water machine stomidium of described water machine spiral case and described water machine end cap is had in the tangential direction of main shaft
The detachable airtight fastening of cover step surface；The described machine on flange excretion mouth is let out has 4 to 8 machines to let out flange on end face of flange 83
Hole；
Described flange suction inlet is had to become vertical cloth with described pump cover step surface central axis on described pump head end cap
Put, described pump head end cap has pump cover axis hole become coaxially arranged with described pump cover step surface central axis, described pump cover
It is matched in clearance between axis hole and described square hole ports power shaft, the described packing seal groove on pump cover axis hole has sealing
Circle presses described square hole ports power shaft periphery；The axle head square hole of described square hole ports power shaft lower end is with described
Slidably coordinate for axis between the pump end square shaft of transducer main shaft upper end；The described pumping end face of flange on flange suction inlet
On have 4 to 8 pumping flange holes；Described flange back pressure mouth and described cover step surface center is had on described water machine end cap
Axis becomes coaxially arranged, and the machine on described flange back pressure mouth is inhaled has 4 to 8 machines to inhale flange hole on end face of flange；
The copper that described square hole ports power shaft outer round surface laser spraying has a layer thickness to be 0.38 to 0.42 millimeter closes
Gold hard anticorrosive material, elementary composition by following percentage by weight of described copper alloy hard anticorrosive material: 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, surplus is
Fe and inevitably impurity；The weight percent content of described impurity is: C less than 0.07, Si less than 0.23, Mn is less than
0.28, S less than 0.013, P is less than 0.018；Described ceramic bearing entirety material is aluminium oxide ceramics, with Al2O3(three oxygen
Change two aluminum) composite is base material, is equipped with mineralizer MgO (magnesium oxide), BaCO3(brium carbonate) and bonding clay form, 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 improving further: described spiral deflector outward flange is along the spiral forcing cooling cylinder cylinder medial wall
Lift angle is 16 to 18 degree.
As improving further: described shell inner hole both sides have housing internal threads to be respectively toward to described water pump spiral casing
Inner chamber and described water machine spiral case inner chamber, described transducer main shaft water pump side has pump bearing section, pump flat key section, pump successively
Thread segment and described pump end square shaft, water pump nut and described pump thread segment rotational fastener, described transducer main shaft water
The most organic bearing section in turbine side, machine thread segment and machine end optical axis, a pair described ceramic bearing hole is respectively with described
Pump bearing section cylindrical and described machine bearing section cylindrical interference fit, described a pair ceramic bearing cylindrical and described shell
Internal hole interference fits, pair of bearings tight loop external screw thread and the regulation of the described housing internal threads pottery described in fixed a pair
Bearing axial location, there are four blind manipulation notches described bearing tight loop one side end face；In the runner of described water machine runner
Screw thread fastens with described machine thread segment threaded engagement；The through hole inner circle of described water pump vane and described pump flat key section cylindrical
Join for slip between square shaft four sides on interference fits, described square hole four wall in axle head square hole and described pump end square shaft
Close.
As improving further: the runner unthreaded hole of described runner female thread bottom slides with described machine end optical axis and joins
Close, described runner unthreaded hole has seven runner screws, described machine end optical axis has four light pin holes, the outer spiral shell of retaining pin
Stricture of vagina section and described runner screw rotational fastener, for sliding between described retaining pin straight pin section and described light pin hole
Coordinate.
The invention has the beneficial effects as follows:
In the pressure cooling cylinder body that nuclear reactor interlayer body is laid, particularly force on cooling cylinder 90 cylinder medial wall
Having spiral deflector, spiral deflector outward flange is that 16 to 18 degree set along the lead angle forcing cooling cylinder cylinder medial wall
Put and enhance cooling effect, described episphere top cover is circumscribed with back pressure pipeline and leads on described flange copper alloy pump
Flange back pressure mouth so that return pressure can obtain efficient recovery, has shared power source load and has reached 30%, it is achieved that fall can purpose；
Interlaced arrangement between the two ends of circulating cooling pond is utilized to have the straight plate of water conservancy diversion, simultaneously by the method on flange copper alloy pump
Drain line is had to lead to the lower end in circulating cooling pond, the described flange suction inlet on flange copper alloy pump on blue excretion mouth
On have high pressure suction pipe to lead to the upper end in described circulating cooling pond so that recirculated cooling water is fully dispelled the heat；
Flange copper alloy pump overall structure uses Flange joint airtight fixing safe and reliable, wherein flange-interface housing two
Side centrosymmetry is provided with water pump spiral casing and water machine spiral case so that mass action power is balanced；Particularly flange-interface housing
On shell inner hole both sides be both provided with housing internal threads, adapted pair of bearings tight loop by socket wrench specially adapted for it adjust tools for alignment behaviour
It is adjusted in place as blind hole, it is ensured that water pump vane and water machine runner are accurately located at water pump spiral casing and water respectively along with a pair ceramic bearing
Among machine spiral case, show that its energy conversion efficiency is up to 68% through experiment.Particularly nuclear reactor interlayer body entirety outer surface is all the time
It is in the high pressure state of cooling, counteracts the partial high pressure impact in portion in nuclear reactor interlayer body；
The runner unthreaded hole of water machine runner there are seven runner screws right with four light pin hole dislocation on machine end optical axis
Should, it is ensured that between runner female thread and the machine thread segment of water machine runner, small rotation regulates, and ensures that retaining pin is the most right
Quasi-runner screw and light pin hole, it is achieved water machine runner can bear rotating without unclamping relative to transducer main shaft, safety
Reliably；
Pump end square shaft it is additionally provided with sliding with the axle head square hole of square hole ports power shaft outside the pump thread segment of transducer main shaft
Dynamic cooperation, it is achieved that external impetus inputs；And square hole four wall port has a square hole groove of 2 × 45 degree, square shaft four sides port has 2 ×
The square shaft groove of 45 degree, it is simple to alignment imports；The square shaft of 2 × 45 degree is particularly had to fall on four adjacent edges at square shaft four sides
Angle, it is ensured that precision-fit transmitting large torque between square shaft four sides and square hole four wall；
The key components and parts of the present invention, the square hole ports power shaft 77 of dynamic seal has one layer at outer round surface laser spraying
Copper alloy hard anticorrosive material, the overall material of the ceramic bearing 73 of dynamic friction bearing part is aluminium oxide ceramics, the most corrosion-resistant but also resistance to
Abrasion.
Accompanying drawing explanation
Fig. 1 is schematic top plan view of the present invention.
Fig. 2 is by the profile at episphere top cover 97 center in Fig. 1.
Fig. 3 is the independent profile forcing cooling cylinder 90 in Fig. 2.
Fig. 4 is the generalized section of flange copper alloy pump 60 in Fig. 1.
Fig. 5 is flange-interface housing 61 generalized section in Fig. 4.
Fig. 6 is pump head end cap 41 generalized section in Fig. 4.
Fig. 7 is water machine end cap 81 generalized section in Fig. 4.
Fig. 8 is bearing tight loop 75 generalized section in Fig. 4.
Fig. 9 is bearing tight loop 75 top 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 profile in Figure 10.
Figure 12 is the B-B profile in Figure 10.
Figure 13 is the C-C profile in Figure 10.
Figure 14 is the axle head square hole 71 position enlarged drawing of square hole ports power shaft 77 in Figure 10.
Figure 15 is pump flat key section 34 and the transmission flat key 11 position enlarged drawing of transducer 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 profile in Figure 16.
Figure 18 is the machine thread segment 36 position enlarged drawing of transducer main shaft 33 in Figure 16.
Figure 19 is the runner female thread 26 position profile of Figure 16 moderate water apparatus runner 88.
Detailed description of the invention
Structure and operation principle to the present invention are further elaborated in conjunction with the accompanying drawings and embodiments:
A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller, nuclear reactor interlayer body 30 runners is positioned at lower half
Ball bottom 92 inner chamber, described lower semisphere bottom 92 bottom outer surface has support foot rest 20 be placed in the end, pond 10 at the bottom of reactor flat
On face, above described lower semisphere bottom 92, there are the fixed cooling cylinder 90 of forcing of flange seal, described pressure cooling cylinder
Having flange seal fixed episphere top cover 97 above in the of 90, episphere top cover 97 top is outside upper packing seal hole 79, described
Airtight and watertight padding hermetic seal in packing seal hole 79 outside the pilot pipe 98 at described nuclear reactor interlayer body 30 top
Circle, as improvement: have spiral deflector 91, spiral deflector 91 inward flange on described pressure cooling cylinder 90 cylinder medial wall
With described nuclear reactor interlayer body 30 outward flange matched in clearance；Pressure duct 94 it is circumscribed with even on described lower semisphere bottom 92
Then the flange outlet 69 on flange copper alloy pump 60, described episphere top cover 97 is circumscribed with back pressure pipeline 87 and leads to
Flange back pressure mouth 89 on described flange copper alloy pump 60, the flange excretion mouth 82 on described flange copper alloy pump 60
On have drain line 28 to lead to the lower end in circulating cooling pond 50, the described flange suction inlet 65 on flange copper alloy pump 60
On have high pressure suction pipe 56 to lead to the upper end in described circulating cooling pond 50, staggered between described circulating cooling pond 50 two ends
Being disposed with the straight plate of water conservancy diversion 21, square hole ports power shaft 77 outer end on flange copper alloy pump 60 is connected to power source 70；
Described flange copper alloy pump 60 entirety includes 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, described flange-interface housing 61 respectively
On shell inner hole 63 on fix a pair ceramic bearing 73 cylindrical, ceramic bearing 73 endoporus fixed transducer main shaft 33, conversion
Device main shaft about 33 both sides fixed water pump vane 44 and water machine runner 88 respectively；
It is perpendicular to have described flange to arrange in the tangential direction of described transducer main shaft 33 on described water pump spiral casing 67
Outlet 69, the pump head stomidium 64 of described water pump spiral casing 67 is the most airtight with the pump cover step surface 46 of described pump head end cap 41
Fastening；4 to 8 pump row's flange holes 55 are had on pump row's end face of flange 53 in described flange outlet 69；Described water machine snail
It is perpendicular in the tangential direction of described transducer main shaft 33 have described flange excretion mouth 82, described water machine spiral case on shell 66
The water machine stomidium 68 of 66 and the detachable airtight fastening of cover step surface 86 of described water machine end cap 81；Described flange excretion mouth
Machine on 82 is let out has 4 to 8 machines to let out flange hole 85 on end face of flange 83；
Described flange suction inlet 65 is had to become with described pump cover step surface 46 central axis on described pump head end cap 41
It is arranged vertically, described pump head end cap 41 has pump cover axis hole 47 become coaxial cloth with described pump cover step surface 46 central axis
Put, be matched in clearance between described pump cover axis hole 47 and described square hole ports power shaft 77, on described pump cover axis hole 47
Packing seal groove 74 in have sealing ring to press described square hole ports power shaft 77 periphery；Described square hole ports input
Slidably coordinate for axis between the axle head square hole 71 of axle 77 lower end with the pump end square shaft 31 of described transducer main shaft 33 upper end；
4 to 8 pumping flange holes 45 are had on the described pumping end face of flange 43 on flange suction inlet 65；On described water machine end cap 81
Described flange back pressure mouth 89 is had to become coaxially arranged with described cover step surface 86 central axis, described flange back pressure mouth 89
On machine inhale and have on end face of flange 93 4 to 8 machines to inhale flange holes 95；
The copper that described square hole ports power shaft 77 outer round surface laser spraying has a layer thickness to be 0.38 to 0.42 millimeter
Alloy hard anticorrosive material, elementary composition by following percentage by weight of described copper alloy hard anticorrosive material: 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, remaining
Amount is Fe and inevitable impurity；The weight percent content of described impurity is: C less than 0.07, Si less than 0.23, Mn few
In 0.28, S less than 0.013, P is less than 0.018；The overall material of described ceramic bearing 73 is aluminium oxide ceramics, with Al2O3
(aluminium sesquioxide) composite is base material, is equipped with mineralizer MgO (magnesium oxide), BaCO3(brium carbonate) and bonding clay group
Become, and the weight percent content of its each component is Al2O3: 94-95；MgO:1.3-1.4； BaCO3: 1.5-1.6；In conjunction with
Clay: 2.1-2.2.
As improving further: described spiral deflector 91 outward flange is along forcing cooling cylinder 90 cylinder medial wall
Lead angle is 16 to 18 degree.
As improving further: described shell inner hole 63 both sides have housing internal threads 62 to be respectively toward to described water pump
Spiral case 67 inner chamber and described water machine spiral case 66 inner chamber, described transducer main shaft 33 water pump side has pump bearing section successively
35, pump flat key section 34, pump thread segment 32 and described pump end square shaft 31, water pump nut 72 rotates with described pump thread segment 32
Fastening, the described the most organic bearing section in transducer main shaft 33 hydraulic turbine side 37, machine thread segment 36 and machine end optical axis 39, institute
A pair ceramic bearing 73 endoporus stated respectively with described pump bearing section 35 cylindrical and described machine bearing section 37 cylindrical interference
Coordinate, described a pair ceramic bearing 73 cylindrical and described shell inner hole 63 interference fits, the outer spiral shell of pair of bearings tight loop 75
Stricture of vagina and described housing internal threads 62 regulate ceramic bearing 73 axial location described in fixed a pair, described bearing tight loop
Four blind manipulation notches 76 are had on 75 1 side end faces；Runner female thread 26 and the described machine thread segment 36 of described water machine runner 88
Threaded engagement fastens；Through hole inner circle 22 and the described pump flat key section 34 cylindrical interference fits of described water pump vane 44, described
Axle head square hole 71 in square hole four wall 13 and on described pump end square shaft 31 square shaft four sides 14 between for being slidably matched.
As improving further: the runner unthreaded hole 29 of described runner female thread 26 bottom is sliding with described machine end optical axis 39
Dynamic cooperation, described runner unthreaded hole 29 has seven runner screws 15, described machine end optical axis 39 has four light pin holes 16,
Retaining pin 19 external thread section and described runner screw 15 rotational fastener, described retaining pin 19 straight pin section is with described
For being slidably matched between light pin hole 16.
As improving further: described square hole four wall 13 degree of depth is 46 to 48 millimeters, and described square hole four wall 13 two is right
Back gauge is 26 to 28 millimeters, and described square hole four wall 13 port has the square hole groove 23 of 2 × 45 degree；Described square shaft four sides 14
A length of 42 to 44 millimeters, described 13 liang of opposite side distances of square hole four wall are 26 to 28 millimeters, described square shaft four sides 14 ports
There is on the square shaft groove 24 of 2 × 45 degree, and four adjacent edges at described square shaft four sides 14 the square shaft chamfering having 2 × 45 degree
17。
As improving further: described runner bucket 84 layout angle on water machine runner 88 and described transducer master
Axle 33 rotation axis becomes 44 to 46 degree angles.
In embodiment:
Spiral deflector 91 outward flange is 17 degree along forcing the lead angle cooling down cylinder 90 cylinder medial wall；Power source
70 select frequency conversion motor, and the waterline 25 of the safety anti-explosive water in circulating cooling pond 50 is below packing seal hole 79, and filler is close
Airtight and watertight padding in sealing of hole 79 presses pilot pipe 98 cylindrical, constitutes static sealing.
Water inlet control valve door 96 and outlet water control valve door 78 is had respectively, it is simple to maintenance on pressure duct 94 and back pressure pipeline 87
Process.
6 pumping flange holes 45, the pump in flange outlet 69 is had on pumping end face of flange 43 on flange suction inlet 65
Having 6 pump row's flange holes 55 on row's end face of flange 53, the machine on flange excretion mouth 82 is let out has 6 machines to let out flange on end face of flange 83
Hole 85, the machine on flange back pressure mouth 89 is inhaled has 6 machines to inhale flange hole 95 on end face of flange 93.
Square hole four wall 13 degree of depth is 47 millimeters, and 13 liang of opposite side distances of square hole four wall are 27.1 millimeters；Square shaft four sides 14 length
Being 43 millimeters, 13 liang of opposite side distances of square hole four wall are 27 millimeters.
Runner bucket 84 layout angle on water machine runner 88 is with transducer main shaft 33 rotation axis in angle of 45 degrees.
The copper alloy hard corrosion resistant material that square hole ports power shaft 77 outer round surface laser spraying has a layer thickness to be 0.4 millimeter
Material, elementary composition by following percentage by weight of copper alloy hard anticorrosive material: Cu:41, Ni:5.3, Ti:4.5, Mo:3.8,
Zn:3.7, W:2.5, Cr:1.3, surplus is Fe and inevitable impurity；The weight percent content of described impurity is, and: C is
0.06, Si be 0.22, Mn be 0.26, S be 0.012, P be 0.016；The overall material of described ceramic bearing 73 is aluminium oxide
Pottery, with Al2O3(aluminium sesquioxide) composite is base material, is equipped with mineralizer MgO (magnesium oxide), BaCO3(brium carbonate) and
Bonding clay forms, and the weight percent content of its each component is Al2O3: 94.5；MgO:1.35； BaCO3: 1.55；Knot
Conjunction clay: 2.15.
The work process of the present invention is as follows:
One, flange copper alloy pump 60 assembles:
1. use and continue to take out for 14 to 15 minutes to subzero 180 to 185 degree by transducer main shaft 33 artificial hypothermia, 1 minute
Within a pair ceramic bearing 73 is respectively fitted over pump bearing section 35 and machine bearing section 37, be integrally placed on flange-interface housing 61
Shell inner hole 63 among；
2. pair of bearings tight loop 75 is rotated on the housing internal threads 62 of shell inner hole 63 both sides respectively, by socket wrench specially adapted for it
Adjust tools for alignment blind manipulation notches 76 to be adjusted in place, it is ensured that water pump vane 44 and water machine runner 88 are accurately located at water pump the most respectively
Among spiral case 67 and water machine spiral case 66；
3. the runner female thread 26 on water machine runner 88 and machine thread segment 36 rotatable engagement pretension, when on runner unthreaded hole 29
1 runner screw 15 in 7 runner screws 15 and any 1 the light pivot pin in 4 light pin holes 16 on machine end optical axis 39
Hole 16 is on time, by retaining pin 19 external thread section and runner screw 15 rotational fastener so that retaining pin 19 straight pin section with
For being slidably matched between described light pin hole 16.Ensure that retaining pin 19 is directed at runner screw 15 and light pin hole simultaneously
16, it is achieved water machine runner 88 can bear rotating without unclamping relative to transducer main shaft 33, safe and reliable；
4. the water board terrace 86 of water machine end cap 81 is directed at the water machine stomidium 68 of described water machine spiral case 66, and with 12 spiral shells
Nail passes through 12 through holes on water board terrace 86, among airtight 12 screws being fastened on water machine stomidium 68 periphery respectively；
5. the transmission flat key 11 in the alignment of the keyway on water pump vane 44 through hole pump flat key section 34 is pressed into so that water pump vane
The through hole inner circle 22 of 44 and described pump flat key section 34 cylindrical interference fits；
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 directed at the pump head stomidium 64 of water pump spiral casing 67, and divides with 12 screws
Do not pass through 12 through holes on pump cover step surface 46, among airtight 12 screws being fastened on pump head stomidium 64 periphery；
8. axle head square hole 71 ecto-entad of square hole ports power shaft 77 passes through the pump cover axis hole 47 on pump head end cap 41, borrows
Sealing ring is had to press described square hole ports power shaft 77 periphery composition with having on pump cover axis hole 47 in packing seal groove 74
Movable sealing.Particularly square hole four wall 13 port has the square hole groove 23 of 2 × 45 degree, square shaft four sides 14 ports to have the side of 2 × 45 degree
Axle groove 24, it is simple to alignment imports；Particularly there is the square shaft chamfering 17 of 2 × 45 degree on four adjacent edges at square shaft four sides 14,
Guarantee precision-fit transmitting large torque between square shaft four sides 14 and square hole four wall 13.
Two, flange copper alloy pump 60 pipeline connects:
Square hole ports power shaft 77 outer end of flange copper alloy pump 60 is fixedly connected power source 70 outfan；
Drain line 28 is had to lead to circulating cooling pond 50 on flange excretion mouth 82 on described flange copper alloy pump 60
Lower end, the described flange suction inlet 65 on flange copper alloy pump 60 has high pressure suction pipe 56 lead to described circulation cold
But the upper end in pond 50；In circulating cooling pond 50, water-retention 5000 cubes is as recirculated cooling water.
Pumping end face of flange 43 on flange suction inlet 65 is airtight with the end face of flange on high pressure suction pipe 56 to be docked, and flange is inhaled
Pumping flange hole 45 on entrance 65 and the flange hole on high pressure suction pipe 56 are to mutatis mutandis six pairs of bolt and nut components fastening；
It is connected between flange outlet 69 and the described lower semisphere bottom 92 of flange copper alloy pump 60 and has pressure duct
94, end face of flange 53 is airtight with the end face of flange on pressure duct 94 docks for pump in flange outlet 69 row, flange outlet
Pump row's flange hole 55 on 69 and the flange hole on pressure duct 94 are to mutatis mutandis six pairs of bolt and nut components fastening；
It is connected between flange back pressure mouth 89 and the described episphere top cover 97 of flange copper alloy pump 60 and has back pressure pipeline
87, machine on flange back pressure mouth 89 inhales that end face of flange 93 is airtight with the end face of flange on back pressure pipeline 87 to be docked, flange back pressure mouth
Machine on 89 inhales flange hole 95 with the flange hole on back pressure pipeline 87 to mutatis mutandis six pairs of bolt and nut components fastening；
Machine on flange excretion mouth 82 lets out that end face of flange 83 is airtight with the end face of flange on drain line 28 to be docked, flange row
Machine on drain port 82 lets out flange hole 85 with the flange hole on drain line 28 to mutatis mutandis six pairs of bolt and nut components fastening；Flange copper
It is connected to drain line 28 at the flange excretion mouth 82 of alloy pump 60 and leads to the lower end in circulating cooling pond 50.
Three, flange copper alloy pump 60 running:
Starting power source 70 high-power driving flange copper alloy pump 60, power source 70 outfan is fixedly connected square hole end
Mouth power shaft 77 upper end, the axle head square hole 71 of square hole ports power shaft 77 lower end and the pump end of described transducer main shaft 33 upper end
Slidably coordinate for axis between square shaft 31, transducer main shaft 33 high speed rotating described in driving；Then transducer main shaft is driven
Water pump vane 44 on 33 and water machine runner 88 high speed rotating.
The centrifugal force utilizing water pump vane 44 high speed rotating to produce produces negative pressure, through high pressure suction pipe at flange suction inlet 65
56 suck the recirculated cooling water in circulating cooling pond 50；Utilize the centrifugal force that water pump vane 44 high speed rotating produces at water pump spiral casing
Produce high pressure at 67, flange outlet 69 pressures cycle discharged cooling water is injected into lower semisphere bottom 92, leads along spiral
Stream plate 91 accelerates flowing, lowers the temperature nuclear reactor interlayer body 30 outer surface, flows through after episphere top cover 97 from back pressure pipeline
87 lead to the flange back pressure mouth 89 on described flange copper alloy pump 60, act on the runner bucket 84 on transducer main shaft 33
On, by means of runner bucket 84 layout angle on dampener runner 88 and transducer main shaft 33 rotation axis in angle of 45 degrees, push away
Dynamic water machine runner 88, with identical direction of rotation more high speed rotating, drives transducer main shaft 33 rotary speed to improve 1 percentage point, point
Carry on a shoulder pole power source 70 load and reached 30%, it is achieved that fall can purpose.
In the pressure cooling cylinder 90 that nuclear reactor interlayer body 30 is laid, particularly force inside cooling cylinder 90 cylinder
There is spiral deflector 91 to enhance cooling effect on wall, described episphere top cover 97 is circumscribed with back pressure pipeline 87 and leads to described
Flange copper alloy pump 60 on flange back pressure mouth 89 so that return pressure can obtain efficient recovery, has shared power source 70
Load reaches 30%, it is achieved that fall can purpose；
Interlaced arrangement between the two ends of circulating cooling pond 50 is utilized to have the straight plate of water conservancy diversion 21, simultaneously by flange copper alloy pump 60
On flange excretion mouth 82 on have drain line 28 to lead to the lower end in circulating cooling pond 50, described flange copper alloy pump 60
On flange suction inlet 65 on have high pressure suction pipe 56 to lead to the upper end in described circulating cooling pond 50 so that recirculated cooling water obtains
To fully heat radiation.The particularly overall outer surface of nuclear reactor interlayer body 30 is in the high pressure state of cooling all the time, counteracts nuclear reaction
Partial high pressure impact within heap interlayer body 30.
Important step flange copper alloy pump 60 overall structure of the present invention uses Flange joint airtight fixing safe and reliable, its
Middle flange-interface housing 61 both sides centrosymmetry is provided with water pump spiral casing 67 and water machine spiral case 66 so that mass action power is put down
Weighing apparatus；Particularly shell inner hole 63 both sides on flange-interface housing 61 are both provided with housing internal threads 62, and adapted pair of bearings is tight
Admittedly circle 75 is adjusted tools for alignment blind manipulation notches 76 by socket wrench specially adapted for it and is adjusted in place, it is ensured that water pump vane 44 and water machine runner 88 are simultaneously
It is accurately located among water pump spiral casing 67 and water machine spiral case 66 respectively, shows that its energy conversion efficiency is up to 68% through experiment.
Important step flange copper alloy pump 60 of the present invention has seven runner spiral shells on the runner unthreaded hole 29 of water machine runner 88
Hole 15 misplaces corresponding with four light pin holes 16 on machine end optical axis 39, it is ensured that runner female thread 26 and the machine spiral shell of water machine runner 88
Between stricture of vagina section 36, small rotation regulates, and ensures that retaining pin 19 is directed at runner screw 15 and light pin hole 16 simultaneously, it is achieved
Water machine runner 88 can bear rotating without unclamping relative to transducer main shaft 33, safe and reliable.
Important step flange copper alloy pump 60 of the present invention is additionally provided with pump outside the pump thread segment 32 of transducer main shaft 33
End square shaft 31 is slidably matched with the axle head square hole 71 of square hole ports power shaft 77, it is achieved that external impetus inputs；And square hole four wall
13 ports have the square hole groove 23 of 2 × 45 degree, square shaft four sides 14 ports to have the square shaft groove 24 of 2 × 45 degree, it is simple to alignment imports；
Particularly there is the square shaft chamfering 17 of 2 × 45 degree on four adjacent edges at square shaft four sides 14, it is ensured that square shaft four sides 14 and square hole four
Precision-fit transmitting large torque between wall 13.
The key components and parts of important step flange copper alloy pump 60 of the present invention, the square hole ports power shaft 77 of dynamic seal
One layer of copper alloy hard anticorrosive material is had, the overall material of the ceramic bearing 73 of dynamic friction bearing part at outer round surface laser spraying
For aluminium oxide ceramics, the most corrosion-resistant but also wear-resistant.
(table 1) aluminium oxide ceramics bearing and the wear test Data Comparison of 316 stainless steel bearings
By the contrasting data of table 1 it follows that the corrosion resistant antiwear ability of aluminium oxide ceramics bearing is better than far away 316 not
Rust steel bearing.
(table 2) is the copper alloy hard anticorrosive material coating of square hole ports power shaft 77 outer surface, with conventional stainless steel
The surface roughness extent of damage experimental data contrast of matter
By the contrasting data of table 2 it follows that outer round surface laser spraying has the side of one layer of copper alloy hard anticorrosive material
The surface roughness extent of damage of nose end mouth power shaft 77 is far smaller than the surface roughness of conventional stainless steel outer surface and is subject to
Damage degree.
Claims (4)
1. a nuclear reactor flange copper alloy aluminum oxide high-pressure chiller, nuclear reactor interlayer body (30) runners is positioned at lower half
Ball bottom (92) inner chamber, described lower semisphere bottom (92) bottom outer surface has support foot rest (20) to be placed in pond at the bottom of reactor
(10), on baseplane, there is fixed pressure cooling cylinder (90) of flange seal described lower semisphere bottom (92) top, described
Forcing cooling cylinder (90) top to have flange seal fixed episphere top cover (97), episphere top cover (97) top is outside upper to be filled out
Material seals hole (79), and the described airtight and watertight padding hermetic seal in packing seal hole (79) described nuclear reactor interlayer body
(30) pilot pipe (98) cylindrical at top, is characterized in that: have spiral shell on described pressure cooling cylinder (90) cylinder medial wall
Rotation deflector (91), spiral deflector (91) inward flange and described nuclear reactor interlayer body (30) outward flange matched in clearance；Institute
It is circumscribed with, on the lower semisphere bottom (92) stated, the flange outlet that pressure duct (94) is connected on flange copper alloy pump (60)
(69) it is circumscribed with back pressure pipeline (87) on, described episphere top cover (97) to lead on described flange copper alloy pump (60)
Flange back pressure mouth (89), flange excretion mouth (82) on described flange copper alloy pump (60) has drain line (28) to lead to
The lower end in circulating cooling pond (50), the described flange suction inlet (65) on flange copper alloy pump (60) has high pressure suction pipe
(56) leading to the upper end in described circulating cooling pond (50), between described circulating cooling pond (50) two ends, interlaced arrangement has
The straight plate of water conservancy diversion (21), square hole ports power shaft (77) outer end on flange copper alloy pump (60) is connected to power source (70)；Institute
Flange copper alloy pump (60) entirety stated includes flange-interface housing (61), pump head end cap (41) and water machine end cap (81), institute
The flange-interface housing (61) stated has water pump spiral casing (67) and water machine spiral case (66), described flange-interface shell in both sides up and down respectively
A pair ceramic bearing (73) cylindrical, the fixed transducer of ceramic bearing (73) endoporus is fixed in shell inner hole (63) on body (61)
Main shaft (33), transducer main shaft (33) both sides up and down fixed water pump vane (44) and water machine runner (88) respectively；Described water
It is perpendicular in the tangential direction of described transducer main shaft (33) have described flange outlet (69) on pump spiral case (67), described
The pump cover step surface (46) of pump head stomidium (64) and described pump head end cap (41) of water pump spiral casing (67) detachable airtight tightly
Gu；4 to 8 pumps row's flange hole (55) are had on pump row's end face of flange (53) in described flange outlet (69)；Described water
It is perpendicular in the tangential direction of described transducer main shaft (33) have described flange excretion mouth (82) on machine spiral case (66), described
The cover step surface (86) of water machine stomidium (68) and described water machine end cap (81) of water machine spiral case (66) detachable airtight tightly
Gu；The described machine on flange excretion mouth (82) is let out has 4 to 8 machines to let out flange hole (85) on end face of flange (83)；Described pump
Described flange suction inlet (65) is had to become to be arranged vertically with described pump cover step surface (46) central axis on head end cover (41), institute
Pump cover axis hole (47) is had to become coaxially arranged with described pump cover step surface (46) central axis on the pump head end cap (41) stated, described
Pump cover axis hole (47) and described square hole ports power shaft (77) between be matched in clearance, on described pump cover axis hole (47)
Packing seal groove (74) there is sealing ring press described square hole ports power shaft (77) periphery；Described square hole ports is defeated
Enter between the axle head square hole (71) of axle (77) lower end and pump end square shaft (31) of described transducer main shaft (33) upper end for axis
Slidably coordinate；4 to 8 pumping flange holes (45) are had on the described pumping end face of flange (43) on flange suction inlet (65)；
Described flange back pressure mouth (89) is had to become same with described cover step surface (86) central axis on described water machine end cap (81)
Axle is arranged, the machine on described flange back pressure mouth (89) is inhaled has 4 to 8 machines to inhale flange hole (95) on end face of flange (93)；Described
Square hole ports power shaft (77) the outer round surface laser spraying copper alloy hard that has a layer thickness to be 0.38 to 0.42 millimeter resistance to
Rotten material, elementary composition by following percentage by weight of described copper alloy hard anticorrosive material: 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, surplus is Fe and can not
The impurity avoided；The weight percent content of described impurity is: C less than 0.07, Si less than 0.23, Mn less than 0.28, S few
In 0.013, P is less than 0.018；The overall material of described ceramic bearing (73) is aluminium oxide ceramics, with Al2O3(three oxidations two
Aluminum) composite is base material, is equipped with mineralizer MgO (magnesium oxide), BaCO3(brium carbonate) and bonding clay form, and it is each
The weight percent content of component is Al2O3: 94-95；MgO:1.3-1.4； BaCO3: 1.5-1.6；Bonding clay: 2.1-
2.2。
A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller the most according to claim 1, is characterized in that: institute
Spiral deflector (91) outward flange stated is 16 to 18 degree along the lead angle forcing cooling cylinder (90) cylinder medial wall.
A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller the most according to claim 1, is characterized in that: institute
Shell inner hole (63) both sides stated have housing internal threads (62) to be respectively toward to described water pump spiral casing (67) inner chamber and described
Water machine spiral case (66) inner chamber, described transducer main shaft (33) water pump side has pump bearing section (35), pump flat key section successively
(34), pump thread segment (32) and described pump end square shaft (31), water pump nut (72) and the rotation of described pump thread segment (32)
Fastening, the described the most organic bearing section in transducer main shaft (33) hydraulic turbine side (37), machine thread segment (36) and machine end light
Axle (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) interference fits, one
Bearing tight loop (75) external screw thread and described housing internal threads (62) are regulated the ceramic bearing (73) described in fixed a pair
Axial location, there are four blind manipulation notches (76) described bearing tight loop (75) side end face；Described water machine runner (88)
Runner female thread (26) and described machine thread segment (36) threaded engagement fasten；The through hole inner circle of described water pump vane (44)
(22) with described pump flat key section (34) cylindrical interference fits, the described square hole four wall (13) in axle head square hole (71) is with described
Pump end square shaft (31) on square shaft four sides (14) between for being slidably matched.
A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller the most according to claim 3, is characterized in that: institute
The runner unthreaded hole (29) of runner female thread (26) bottom stated is slidably matched with described machine end optical axis (39), described runner light
There are seven runner screws (15) on hole (29), described machine end optical axis (39) has four light pin holes (16), retaining pin
(19) external thread section and described runner screw (15) rotational fastener, described retaining pin (19) straight pin section and described light
For being slidably matched between pin hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454499.3A CN104240775B (en) | 2014-09-09 | 2014-09-09 | A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller |
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| CN201410454499.3A CN104240775B (en) | 2014-09-09 | 2014-09-09 | A kind of nuclear reactor flange copper alloy aluminum oxide high-pressure chiller |
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| CN104240775B true CN104240775B (en) | 2016-08-31 |
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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 |
| CN103956193B (en) * | 2014-03-31 | 2017-01-04 | 中国核电工程有限公司 | A kind of passive containment thermal conduction system |
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Effective date of registration: 20160726 Address after: 325000 coastal Zhejiang province Wenzhou City Economic and Technological Development Zone two Road No. 944 Building 9 room 801 Ruifeng Jinyuan Applicant after: WENZHOU ZHIJIE ELECTROMECHANICAL TECHNOLOGY CO., LTD. Address before: Lucheng District of Wenzhou city Zhejiang province 325000 Lotus Street Park sleep room 90-5-106 Applicant before: Zhang Zhixiong |
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