CN206175248U - Nuclear power station house service pump - Google Patents
Nuclear power station house service pump Download PDFInfo
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- CN206175248U CN206175248U CN201621090522.6U CN201621090522U CN206175248U CN 206175248 U CN206175248 U CN 206175248U CN 201621090522 U CN201621090522 U CN 201621090522U CN 206175248 U CN206175248 U CN 206175248U
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Abstract
The utility model relates to a nuclear power station house service pump, which comprises a motor, the motor cabinet, the pump seat, the connecting pipe subassembly, the blower inlet casing subassembly, the loudspeaker of intaking, transmission shaft group, the motor cabinet passes through pump cover and pump seat fixed connection, pump cover central authorities are equipped with the bearing frame, the bearing frame kneck is equipped with the mechanical seal ring subassembly, go out the water return bend, connecting pipe E, intermediate shaft bearing puts up B, connecting pipe D, intermediate shaft bearing puts up A, it is curved in the formation of connecting pipe A that straight connecting pipe subassembly is whole down, go up the blower inlet casing, the blower inlet casing subassembly of blower inlet casing formation unsteady flow way is whole down, intermediate shaft bearing puts up A, intermediate shaft bearing puts up B, the loudspeaker of intaking are interior to be equipped with pedestal loop structure along the axis, go up the blower inlet casing, it constructs to be equipped with umbelliform runner pedestal loop along the axis in the blower inlet casing down, go up the main shaft, the jackshaft, it is whole that the impeller shaft forms transmission shaft group, be equipped with the impeller on the impeller shaft. The utility model provides a CAP1400 demonstration project house service pump adopts whole suction pump formula structure, has stable in structure, maintains convenient characteristics.
Description
Technical field
This utility model is related to a kind of water pump, more particularly to a kind of nuclear power station house service pump, belongs to water pump field.
Background technology
Long-shaft pump is to make liquid along the pump of pipeline to the suction force that liquid is produced using rotary blade, is a kind of employing
The lift of blade by fluid carry to outlet discharge pump, with flow it is big the features such as.Common long-shaft pump includes the pump housing, water delivery
Section, Discharging bent-tube, impeller, pump shaft, upper bearing (metal) supporting mass, lower bearing supporting mass and stuffing seal, the pump housing lower end with
Pump hole is fixedly connected, and upper end is fixedly connected with Discharging bent-tube, and pump shaft is located at pump housing center, and upper end passes through and is fixed on Discharging bent-tube
Stuffing seal and upper bearing (metal) support meanss be connected with motor, lower end is through the lower bearing supporting mass and leaf in suction casing
Wheel is fixedly connected, and impeller is generally equipped with multiple blades, fixed guide vane is generally equipped with the pump case of upper impeller, to eliminate liquid
Rotary motion, be allowed to be changed into axially-movable, and the kinetic energy of rotary motion is changed into pressure energy.But, traditional long-shaft pump
Structure does not have an axle protection device mostly, and use range is limited, and under larger liquid during depth, due to pump shaft it is elongated, long-shaft pump
Its axiality cannot be guaranteed during operation, serious wear, and noise is big during operation, and vibration is big, and efficiency is low, and stability is poor, fragile,
Increased maintenance cost.
The content of the invention
This utility model nuclear power station house service pump discloses new scheme, there is provided a kind of CAP1400 demonstration projects station-service
Water pump, using overall pump type structure design is taken out, and solves the problems, such as that existing long-shaft pump safeguards inconvenience.
This utility model nuclear power station house service pump includes motor, motor cabinet, pump seat, connecting pipe component, water conservancy diversion shell component, enters
Water loudspeaker, power transmission shaft group, motor is arranged on motor cabinet, and motor cabinet is fixedly connected by pump cover with pump seat, and pump seat seat is located at pump
On hole, pump cover central authorities are provided with through tubulose bearing block, and bearing block seam is provided with mechanical seal ring assemblies, and connecting pipe component includes
The Discharging bent-tube being located in pump seat, curved wall is provided with spindle through-hole on the outside of Discharging bent-tube, and the water side of Discharging bent-tube is from pump seat
Side pass-out, the water inlet end of Discharging bent-tube and connecting tube E form sealing and connect A, and connecting tube E is sealed downwards after pass-out pump seat with
Between bearing bracket stand B sealing connections, jackshaft bolster B and connecting tube D-shaped connect B into sealing, and connecting tube D is formed with jackshaft bolster A
Sealing connection C, jackshaft bolster A form sealing and connect D, Discharging bent-tube, connecting tube E, jackshaft bolster B, connection with connecting tube A
Pipe D, jackshaft bolster A, connecting tube A are formed and stoop straight connecting pipe component entirety, water conservancy diversion shell component include upper blower inlet casing, under
Blower inlet casing, water side and connecting tube A of upper blower inlet casing form sealing and connect E, the water inlet end of upper blower inlet casing and lower blower inlet casing water outlet
End forms sealing connection F, and the water inlet end of lower blower inlet casing is formed to seal and connects G with the tapered end of water-inlet horn, upper blower inlet casing, under lead
Stream hull shape is into water conservancy diversion shell component entirety of the shaft section in lageniform bend flow channel, jackshaft bolster A, jackshaft bolster B, water inlet loudspeaker
Interior being provided with pedestal ring structure, upper blower inlet casing, lower blower inlet casing along axis is provided with umbrella runner pedestal ring structure along axis,
Umbrella runner pedestal ring structure cooperatively forms blower inlet casing ring flow passage structure, power transmission shaft group bag with shaft section in lageniform bend flow channel
Main shaft, jackshaft, impeller axle are included, the power transmission shaft of motor is connected by connecting shaft component A with upper spindle drive, upper main shaft is by connecting
Shaft assembly B is connected with jackshaft, and jackshaft is connected by connecting shaft component C with impeller axle, upper main shaft, jackshaft, leaf
Wheel shaft forms power transmission shaft group entirety, power transmission shaft group integrally sequentially pass through from top to bottom through tubulose bearing block, upper spindle through-hole, in
Between the pedestal ring structure of bearing bracket stand B, the pedestal ring structure of jackshaft bolster A, the umbrella runner pedestal ring structure of upper blower inlet casing, under
The umbrella runner pedestal ring structure of blower inlet casing, the pedestal ring structure of water-inlet horn form rotatable socket, water conservancy diversion shell component entirety
Fixation in interior impeller axle is arranged with impeller, and water source is drawn upwardly out earth's surface by the rotation of Motor drive power transmission shaft group impeller.
This utility model nuclear power station house service pump provides a kind of CAP1400 demonstration projects house service pump, is taken out using overall
Pump type structure, with Stability Analysis of Structures, the characteristics of easy to maintenance.
Description of the drawings
Fig. 1 is the partial schematic sectional view of this programme nuclear power station house service pump.
Fig. 2 is the close-up schematic view of the connecting shaft component A in A portions in Fig. 1.
Fig. 3 is the close-up schematic view of connecting shaft component C (B) in B portions in Fig. 1.
Fig. 4 is the cross-sectional schematic of this programme pump body structure.
Fig. 5 is the cross-sectional schematic of pump seat and connecting pipe component top assembling structure.
Fig. 6 is the schematic diagram of inlet pipeline.
Fig. 7 is the cross-sectional schematic of motor cabinet.
Fig. 8 is the cross-sectional schematic of jackshaft bolster B.
Fig. 9 is the cross-sectional schematic of connecting tube D.
Figure 10 is the cross-sectional schematic of jackshaft bolster A.
Figure 11 is the cross-sectional schematic of connecting tube A.
Figure 12 is the cross-sectional schematic of upper blower inlet casing.
Figure 13 is the cross-sectional schematic of lower blower inlet casing.
Figure 14 is the cross-sectional schematic of water-inlet horn.
Figure 15 is the scheme of installation of this programme nuclear power station house service pump.
Figure 16 is the close-up schematic view in mounting structure A portions in Figure 15.
Figure 17 is the close-up schematic view in mounting structure B portions in Figure 15.
Wherein, 1 is water-inlet horn, and 6 is impeller, and 9 is lower blower inlet casing, and 12 is upper blower inlet casing, and 15 is impeller axle, and 16 is connection
Pipe A, 17 is jackshaft bolster A, and 20 is Hough shaft coupling, and 21 is Zhong Kaiquan, and 22 is connecting tube D, and 23 is jackshaft, and 25 is connection
Pipe E, 26 is pump seat, and 27 is upper main shaft, and 28 is Discharging bent-tube, and 29 is anti-flange, and 33 is outlet pipeline, and 35 is pump cover, and 37 is axle
Bearing, 38 is mechanical seal ring assemblies, and 39 is motor cabinet, and 40 is adjusting nut, and 41 is pump shaft coupling, and 42 is middle node, and 44 are
Motor coupler, 59 is air bleeding valve, and 66 is inlet pipeline.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in figure 1, this utility model nuclear power station house service pump schematic diagram.Nuclear power station house service pump includes motor, motor
Seat, pump seat, connecting pipe component, water conservancy diversion shell component, water-inlet horn, power transmission shaft group.Motor is arranged on motor cabinet, and motor cabinet passes through
Pump cover is fixedly connected with pump seat, and pump seat seat is located on pump hole, and as described in Figure 7, the motor cabinet of this programme is cylinder-like structure, cylinder
The upper and lower ends of shape structure are provided with adpting flange, and the inside of cylinder-like structure can be the connection group of motor transmission shaft and upper main shaft
Part provides installing space.As shown in figure 5, the pump seat of this programme is cylinder-like structure, the upper end of pump seat is provided with flange arrangement, pump seat
It is connected with pump cover by the flange arrangement, pump cover plays connection motor cabinet and acts on the intermediary agent structure of pump seat, and also pump seat is played
The effect of closed cover envelope, while in order to ensure that the gas that valve inner is produced can be discharged in time, it is to avoid valve inner pressure is different
The normal work of dynamic impact pump, this programme is provided with air bleeding valve, gas in air bleeding valve excavationg pump on the upside of pump cover.Pump hole be to
The water intaking well construction of lower extension.Pump cover central authorities are provided with through tubulose bearing block, and bearing block seam is provided with mechanical seal ring assemblies,
It is to accommodate the tubular conduit structure that upper main shaft is passed through inside pump seat through tubulose bearing block, its interior lower end can be provided with axle sleeve group
Part, sleeve assembly includes axle sleeve and the guide bearing being located between axle sleeve and bearing block inwall, and guide bearing loads a side axle of bearing block
Bearing end face is provided with guide bearing baffle plate, for preventing guide bearing from shifting.
Connecting pipe component includes the Discharging bent-tube being located in pump seat, and curved wall is provided with spindle through-hole on the outside of Discharging bent-tube,
The water side of Discharging bent-tube forms sealing and connects A, connecting tube E from pump seat side pass-out, water inlet end and connecting tube E of Discharging bent-tube
Connect with jackshaft bolster B sealings after sealing pass-out pump seat downwards, jackshaft bolster B connects B with connecting tube D-shaped into sealing, even
Adapter D forms sealing and connects C with jackshaft bolster A, and jackshaft bolster A forms sealing and connects D with connecting tube A, as shown in figure 4,
Discharging bent-tube, connecting tube E, jackshaft bolster B, connecting tube D, jackshaft bolster A, connecting tube A are formed and stoop straight connecting tube
Component entirety.As shown in figure 5, the Discharging bent-tube of this programme is three-way pipe structure, straight tube upper end and the pump cover sealing of tee T connect
Logical, lower end connects with the sealing of connecting tube E, and the lower end of tee T is bent upwards extends bend pipe end, bend pipe end pass-out pump seat, bend pipe
End be provided with anti-flange so as to other pipeline communications.As shown in Fig. 8,10, the jackshaft bolster of this programme is circulus, ring
The both sides of shape structure are provided with connection otic placode, and the inside of circulus is provided with pedestal ring structure, and pedestal ring is by the connection on the outside of it
Plate is fixedly connected with jackshaft bolster inwall.As shown in figure 9, connecting tube D is flexible shape structure, its upper and lower ends is designed with connection
Flange, adpting flange, circumferentially arranged with some reinforcements, reinforces its bonding strength with cylinder joint.As shown in figure 11, in order to
The flow of connecting pipe component is improved, rationally using energy storage state of the current after water conservancy diversion shell component, connecting tube A of this programme is
Along the tube part of the direction flaring that draws water, the two ends of tube part are provided with adpting flange, reinforcement are additionally provided between the adpting flange of two ends
Muscle, effectively improves the discharge in connecting tube on the premise of structural strength is ensured.
Water conservancy diversion shell component includes upper blower inlet casing, lower blower inlet casing, and water side and connecting tube A of upper blower inlet casing form sealing and connect
E, the water inlet end of upper blower inlet casing forms sealing and connects F, water inlet end and the water-inlet horn of lower blower inlet casing with lower blower inlet casing water side
Tapered end forms sealing connection G, and it is whole that upper blower inlet casing, lower blower inlet casing form water conservancy diversion shell component of the shaft section in lageniform bend flow channel
Pedestal ring structure, upper blower inlet casing, lower blower inlet casing are provided with body, jackshaft bolster A, jackshaft bolster B, water-inlet horn along axis
Interior to be provided with umbrella runner pedestal ring structure along axis, umbrella runner pedestal ring structure is matched somebody with somebody with shaft section in lageniform bend flow channel
Conjunction forms blower inlet casing ring flow passage structure, and as shown in Figure 12,13, the upper and lower ends of blower inlet casing are provided with adpting flange, internal umbrella
Connected by deflector between runner pedestal ring structure and blower inlet casing inwall, water is extracted to come through water conservancy diversion by impeller rotation from underground
Plate adjustment is flowed upwards out behind flow direction.As shown in figure 14, the water-inlet horn of this programme is along tapered horn-like of water (flow) direction
Structure, the upper end of water-inlet horn is provided with adpting flange, structural bead is provided between adpting flange and loudspeaker outer wall, in water-inlet horn
Portion is provided with pedestal ring structure, and pedestal ring is fixedly connected by the connecting plate on the outside of it with water-inlet horn inwall.
Power transmission shaft group includes upper main shaft, jackshaft, impeller axle, and the power transmission shaft of motor is passed by connecting shaft component A with upper main shaft
Dynamic connection, upper main shaft is connected by connecting shaft component B with jackshaft, and jackshaft is connected by connecting shaft component C with impeller axle transmission
Connect, upper main shaft, jackshaft, impeller axle form power transmission shaft group entirety, power transmission shaft group is integrally sequentially passed through from top to bottom through tubulose
Bearing block, upper spindle through-hole, the pedestal ring structure of jackshaft bolster B, the pedestal ring structure of jackshaft bolster A, upper blower inlet casing
Umbrella runner pedestal ring structure, the umbrella runner pedestal ring structure of lower blower inlet casing, the pedestal ring structure of water-inlet horn are formed and can revolved
Pivoted housing connects, and fixation in the impeller axle in water conservancy diversion shell component entirety is arranged with impeller, the rotation of Motor drive power transmission shaft group impeller
Water source is drawn upwardly out into earth's surface.As shown in Fig. 2 the connecting shaft component A of this programme include be fixedly connected sequentially motor coupler, in
Segmentum intercalaris, pump shaft coupling, motor coupler is fixedly sleeved with motor transmission shaft, and pump shaft coupling is fixedly sleeved with upper main shaft, and motor is passed
Moving axis is by main shaft rotation in connecting shaft component A drives.Motor shaft and pump shaft are coupled using positive coupling, and are provided with centre
Section, can be keeped in repair, be changed in the case where motor and motor rack is not dismantled to sealing.Further, for the ease of the peace of pump shaft
Dress safeguards that adjust the peripheral level of impeller, this programme is provided with the upper main shaft below pump shaft coupling and forms inside and outside with upper main shaft
The adjusting nut of threaded connection, adjusting nut is bolted on the lower end of pump shaft coupling, and power transmission shaft group passes through inside and outside spiral shell
Stricture of vagina connection turn adjusts the axial location of impeller, and after the completion of regulation adjusting nut is fixed on pump shaft coupling by bolt is prevented
Loosen.As shown in figure 3, the connecting shaft component B of this programme includes Hough shaft coupling, Zhong Kaiquan is provided with the middle part of Hough shaft coupling, on
Main shaft is opened circle axially position and is connected in passing through with jackshaft, upper main shaft passes through the circumferentially positioned connection of Hough shaft coupling with jackshaft.
Hough shaft coupling is buckled into half tubular split of tubular structure including two panels, and both prevent upper main shaft by the key on upper main shaft
Circumferentially opposed motion, middle open loop is Snap ring structure, and the end of upper main shaft and jackshaft is limited into card jail to prevent both circumferences
Relative motion.This programme also goes out to be provided with guide shaft bearing assembly to ensure the even running of shafting in each pedestal ring, specifically passes
Moving axis group with run through tubulose bearing block, the pedestal ring structure of jackshaft bolster B, the pedestal ring structure of jackshaft bolster A, upper water conservancy diversion
The umbrella runner pedestal ring structure of shell, the umbrella runner pedestal ring structure of lower blower inlet casing, the pedestal ring structure of water-inlet horn are formed
Rotatable socket place is additionally provided with guide shaft bearing assembly, and guide shaft bearing assembly includes axle sleeve, guide bearing, bearing baffle, and axle sleeve is set in biography
On moving axis, guide bearing is located at pedestal ring structure and shaft room, and bearing baffle envelope is located at the end of the pedestal ring structure of guide bearing side
Portion, bearing baffle prevents guide bearing from deviating from from pedestal ring structure.
The nuclear power station house service pump of this programme upper end axle envelope in starting mode of pump certainly exists instantaneous unlubricated friction operating mode, in order to
Ensure that mechanical seal ring assemblies can bear the unlubricated friction operating mode, this programme have also been devised the scheme of diversion flushing, such as Fig. 5,6 institutes
Show, specifically mechanical seal ring assemblies also include flushing line, flushing system includes inlet pipeline, outlet pipeline, inlet pipeline
Including water inlet channel, water inlet manifold road in external industry water inlet channel, water pump, the water inlet end of external industry water inlet channel
Connect with external industrial water source, the water side of external industry water inlet channel is by three way cock and the water inlet end in water inlet manifold road
Connection, the water inlet end of water inlet channel is connected with water source in water pump in water pump, and the water side of water inlet channel passes through three in water pump
Pass joint is connected with the water inlet end in water inlet manifold road, and the water side in water inlet manifold road is passed through from the side of mechanical ring assembly,
Outlet pipeline accesses pump hole from the opposite side pass-out of mechanical ring assembly.Further, in order that control is easy at the water source of water inlet
System is changed, and this programme is additionally arranged on pipeline valve member, specifically external industry water water inlet pipe on the basis of such scheme
Road is provided with water inlet control valve group, and water inlet control valve group includes forming stop valve A, check-valves, the stop valve B of series connection, in water pump
Water inlet channel is provided with shutoff valve C, and hydraulic pressure of the check-valves in water inlet channel in water pump is more than external industry water water inlet pipe
Close in the state of hydraulic pressure in road, flushing line forms pump interior circulation flush loop, check-valves water inlet channel in water pump
Less than opening in the state of the hydraulic pressure in external industry water inlet channel, flushing line to be formed and rinse water route outside pump interior hydraulic pressure.
I.e. this programme is in order that the more safe and reliable operation of pump, when the flushing line is designed, inlet pipeline presses the flushing of two-way water source
Design, is respectively water pump inside (pumped (conveying) medium) and external industry water, and during water pump operation, pipe-line system can pass through external water pipe road
And the pressure of pump body pipeline water is different, and mechanical seal is rinsed respectively, when external water pressure is more than pump bulk medium pressure
In the case of power, i.e., inlet pipeline upper check valve leads to, and outer water receiving is rinsed to sealing, when external water pressure is situated between less than pump body
In the case of matter pressure, i.e., inlet pipeline upper check valve is closed, and pump body water is rinsed.Therefore, this programme is in running
Even if in the failure of external industry water, also have pump intrinsic sea water and machine envelope be rinsed, the operation and machine to water pump is sealed all
It is not in any impact.It is under unlubricated friction operating mode and normal that the design at two-way water source preferably resolves mechanical seal ring assemblies
The problems such as operating cooling.
The water pump of this programme operationally rotates generation vibration, and the operation to pump has a negative impact, this in order to monitor
Vibration, reduces the adverse effect that vibration is produced to the part of pump, and this programme is additionally provided with vibration detecting device, vibration detecting device on motor cabinet
The three-dimensional vibrating situation of monitoring water pump.Other positions of the pump housing can also according to actual needs lay vibration detecting device.Further,
In order to control because the connection between the caused pump parts of vibration loosens, deforms, shifts, this programme have also been devised the firm of connection and add
Strong scheme, i.e., as shown in D in Fig. 5,9~14, the axis specifically on the outside of Discharging bent-tube on curved wall along upper spindle through-hole sets
There is a upwardly extending bend loss adpting flange, the downside of bend loss adpting flange and pump cover is along the bearing block through tubulose
The upper main shaft seal flange that axis is extended downwardly forms sealing connection H, sealing connection A, sealing connection B, sealing connection C, sealing
Connection D, sealing connection E, sealing connection F, sealing connection G, the flange seal junction of sealing connection H are provided with some alignment pins,
This programme is preferably in sealing connection A, sealing connection B, sealing connection C, sealing connection D, sealing connection E, sealing connection F, sealing
Connection G, the flange seal junction of sealing connection H are provided with 3 alignment pins for circumferentially arranging at equal intervals.In view of this programme
Water pump is longer, and outer cylinder body is formed by connecting by multiple parts, therefore adjacent two parts junction all has certain fit clearance, is
Ensure the concentric requirement of pump, adjusted behind gap by special installation tool when water pump is installed, then match somebody with somebody in cylinder upper flange surface
Standby 3 alignment pins are positioned, and effectively improve vertical pump vibration this key issue.
Vibration is produced during pump operation, the cooperation between each part of inside configuration can be not only affected, also can be to the overall peace of pump
Dress stability is impacted, and causes the pump housing and pump to produce relative motion between cheating, and affects equipment normal work.Ask to solve this
Topic, this programme takes reinforcing installation measure, and as seen in figs. 15-17, specifically pump seat is fixed on pump hole by concrete pedestal
Porch, concrete pedestal ring is located on the outside lower half of pump seat, lower half and concrete pedestal junction on the outside of the pump seat
Ground surface end is provided with the pump housing and installs ring seat, and it is shaft section circulus of a lateral H shape that the pump housing installs ring seat, and the pump housing installs ring seat
Bottom margin is provided with reinforcement by connection part, and reinforcement by connection part includes connecting hook, connecting pin, and hook tail and the pump housing of connecting hook are pacified
Dress ring seat bottom margin is fixedly connected, and the gib head of connecting hook reaches deep down into concrete pedestal and forms fixation and links, one end of connecting pin
Ring seat bottom margin is installed with the pump housing to be fixedly connected, the other end of connecting pin reaches deep down into concrete pedestal and forms a fixed connection.Enter
One step, for the pump body portion for protecting long-shaft pump to extend to underground, the concrete pedestal of this programme is extended downwardly in connecting pipe component
The portion for going deep into pump hole forms cement protection hoistway, and cement protection hoistway prevents the soil layer motion of pump hole from damaging connecting tube group
Part.
The house service pump of this programme is one of capital equipment of CAP1400 demonstration project service water systems (SWS), and its is main
Function is to provide cooling water for component cooling water system (CCS) heat exchanger.House service pump is a kind of seawater corrosion resistance and silt particle
Vertical, the multistage long-shaft pump of erosion, the pump is mainly made up of core pulling part, outer tube body portion.Core pulling part by water-inlet horn, lead
The parts such as stream shell, impeller, axle, connecting tube, Discharging bent-tube are constituted.Outer tube body portion is made up of parts such as pump seat and pipelines.Water pump
Pump type structure is taken out using overall in structure, can be in the case where outlet conduit not be dismantled, to the work department below the basis of pump
Part is overhauled.Water pump axial force is born completely by motor thrust bearing, and motor shaft and pump shaft are coupled using positive coupling, and
And middle node is provided with, in the case where motor and motor rack is not dismantled sealing can be keeped in repair, changed.Shaft coupling lower end sets
Adjusting nut is put, for adjusting impeller axial location.Because water pump is longer, outer cylinder body is formed by connecting by multiple parts, therefore phase
All there is certain fit clearance in adjacent two part junctions, be the concentric requirement for ensureing pump, when water pump is installed by special peace
Behind holding tool adjustment gap, then 3 alignment pins are equipped with cylinder upper flange surface are positioned.Therefore, this programme have with
Under the characteristics of bring good effect：(1) pump type structure is taken out using overall on water pump structure, can be in the feelings for not dismantling outlet conduit
Under condition, the workpiece below the basis of pump is overhauled；(2) inside each blower inlet casing, intermediate support, it is respectively provided with water and leads
Bearing, bears the radial force of rotor various pieces, it is ensured that shafting even running.Guide bearing selects imported bearing, medium self-lubricating,
With preferable self-lubricating and anti-wear performance.The dry friction running requirements of 120 seconds can be born；Long-shaft pump in starting mode of pump on
End axle envelope certainly exists instantaneous unlubricated friction operating mode, therefore the mechanical seal of the pump must be able to bear the unlubricated friction operating mode；(4) due to water
Pump is longer, and outer cylinder body is formed by connecting by multiple parts, therefore adjacent two parts junction all has certain fit clearance, is guarantor
The concentric requirement of card pump, is adjusted behind gap when water pump is installed by special installation tool, then is equipped with cylinder upper flange surface
3 alignment pins are positioned, and effectively reduce vertical pump vibration this key issue；(5) motor shaft and pump shaft are using rigid shaft coupling
Device couples, and is provided with middle node, in the case where motor and motor rack is not dismantled sealing can be keeped in repair, changed；(6) join
Axle device lower end arranges adjusting nut, the axial location of convenient adjustment water pump lower end impeller.Based on above feature, the nuclear power of this programme
House service pump of standing compares existing like product and has substantive distinguishing features and progress.
The nuclear power station house service pump of this programme is not limited to the content disclosed in specific embodiment, occurs in embodiment
Technical scheme can be with individualism, it is also possible to mutually include, and those skilled in the art make according to this programme with reference to common knowledge
Simple alternative fall within the scope of this programme.
Claims (10)
1. a kind of nuclear power station house service pump, it is characterized in that including motor, motor cabinet, pump seat, connecting pipe component, water conservancy diversion shell component,
Water-inlet horn, power transmission shaft group, the motor is arranged on the motor cabinet, and the motor cabinet is fixed by pump cover with the pump seat
Connection, the pump seat seat is located on pump hole, and the pump cover central authorities are provided with through tubulose bearing block, and the bearing block seam is provided with
Mechanical seal ring assemblies, the connecting pipe component includes the Discharging bent-tube being located in the pump seat, the outer lateral curvature of the Discharging bent-tube
Wall is provided with spindle through-hole, and the water side of the Discharging bent-tube is from pump seat side pass-out, the water inlet of the Discharging bent-tube
End forms sealing and connects A with connecting tube E, and connecting tube E seals connect with jackshaft bolster B sealings after pump seat described in pass-out downwards
Logical, the jackshaft bolster B connects B with connecting tube D-shaped into sealing, and connecting tube D forms sealing and connects with jackshaft bolster A
C, the jackshaft bolster A form sealing and connect D, the Discharging bent-tube, connecting tube E, jackshaft bolster B, connection with connecting tube A
Pipe D, jackshaft bolster A, connecting tube A are formed and stoop straight connecting pipe component entirety, and the water conservancy diversion shell component includes upper water conservancy diversion
Shell, lower blower inlet casing, water side and connecting tube A of the upper blower inlet casing form sealing and connect E, the water inlet of the upper blower inlet casing
End forms sealing and connects F with the lower blower inlet casing water side, and the water inlet end of the lower blower inlet casing is tapered with the water-inlet horn
End forms sealing connection G, and it is whole that the upper blower inlet casing, lower blower inlet casing form water conservancy diversion shell component of the shaft section in lageniform bend flow channel
Body, is provided with pedestal ring structure in the jackshaft bolster A, jackshaft bolster B, water-inlet horn along axis, the upper blower inlet casing,
Umbrella runner pedestal ring structure is provided with along axis in lower blower inlet casing, the umbrella runner pedestal ring structure is in the shaft section
Lageniform bend flow channel cooperatively forms blower inlet casing ring flow passage structure, and the power transmission shaft group includes upper main shaft, jackshaft, impeller axle,
The power transmission shaft of the motor is connected by connecting shaft component A with the upper spindle drive, and the upper main shaft is by connecting shaft component B and institute
State jackshaft to be connected, the jackshaft is connected by connecting shaft component C with the impeller axle, the upper main shaft, centre
Axle, impeller axle form power transmission shaft group entirety, the power transmission shaft group integrally sequentially pass through from top to bottom it is described through tubulose bearing block,
Upper spindle through-hole, the pedestal ring structure of jackshaft bolster B, the pedestal ring structure of jackshaft bolster A, the umbrella runner of upper blower inlet casing
Pedestal ring structure, the umbrella runner pedestal ring structure of lower blower inlet casing, the pedestal ring structure of water-inlet horn form rotatable socket, institute
State fixation in the impeller axle in water conservancy diversion shell component entirety and be arranged with impeller, power transmission shaft group described in the Motor drive drives institute
State impeller rotation and water source is drawn upwardly out into earth's surface.
2. nuclear power station house service pump according to claim 1, it is characterised in that the mechanical seal ring assemblies also include punching
Wash pipeline, the flushing system includes inlet pipeline, outlet pipeline, the inlet pipeline include external industry water inlet channel,
Water inlet channel, water inlet manifold road in water pump, the water inlet end of the external industry water inlet channel is connected with external industrial water source,
The water side of the external industry water inlet channel is connected by three way cock with the water inlet end in the water inlet manifold road, the water
The water inlet end of water inlet channel is connected with water source in water pump in pump, and the water side of water inlet channel passes through described three in the water pump
Pass joint is connected with the water inlet end in the water inlet manifold road, and the water side in the water inlet manifold road is from the mechanical seal ring assemblies
Side be passed through, the outlet pipeline accesses pump hole from the opposite side pass-out of the mechanical seal ring assemblies.
3. nuclear power station house service pump according to claim 2, it is characterised in that set on the external industry water inlet channel
There is water inlet control valve group, the water inlet control valve group includes forming stop valve A, check-valves, the stop valve B of series connection, the water pump
Interior water inlet channel is provided with shutoff valve C, and hydraulic pressure of the check-valves in water inlet channel in the water pump is outer more than described
Connect and closed in the state of the hydraulic pressure in industry water inlet channel, the flushing line forms pump interior circulation flush loop, described to stop
In the state of hydraulic pressure of the valve in water inlet channel in the water pump is returned less than the hydraulic pressure in the external industry water inlet channel
Open, the flushing line to be formed and rinse water route outside pump.
4. nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that on the motor cabinet also
Vibration detecting device is provided with, the vibration detecting device monitors the three-dimensional vibrating situation of water pump.
5. nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that outside the Discharging bent-tube
Upwardly extending bend loss adpting flange, the bend loss connection method are provided with lateral curvature wall along the axis of the upper spindle through-hole
It is blue to form close along the upper main shaft seal flange that the axis through tubulose bearing block extends downwardly with the downside of the pump cover
Envelope connection H, the sealing connection A, sealing connection B, sealing connection C, sealing connection D, sealing connection E, sealing connection F, sealing
Connection G, the flange seal junction of sealing connection H are provided with some alignment pins.
6. nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that the connecting shaft component A bags
Motor coupler, middle node, the pump shaft coupling being fixedly connected sequentially is included, the motor coupler is fixed with the motor transmission shaft
Socket, the pump shaft coupling is fixedly sleeved with the upper main shaft, and the motor transmission shaft drives the upper master by connecting shaft component A
Axle rotates.
7. nuclear power station house service pump according to claim 6, it is characterised in that the described upper master below the pump shaft coupling
Axle is provided with and forms the adjusting nut that internal and external threads are connected with the upper main shaft, and the adjusting nut is bolted on described
On the lower end of pump shaft coupling, the power transmission shaft group connects the axial location that turn adjusts impeller by the internal and external threads.
8. nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that the connecting shaft component B bags
Hough shaft coupling is included, Zhong Kaiquan is provided with the middle part of the Hough shaft coupling, the upper main shaft and the jackshaft are by described
Circle axially position connection is opened, the upper main shaft is with the jackshaft by the circumferentially positioned connection of the Hough shaft coupling.
9. nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that the power transmission shaft group with
It is described through tubulose bearing block, the pedestal ring structure of jackshaft bolster B, the pedestal ring structure of jackshaft bolster A, upper blower inlet casing
Umbrella runner pedestal ring structure, the umbrella runner pedestal ring structure of lower blower inlet casing, the pedestal ring structure of water-inlet horn are formed and can revolved
Turn socket place and be additionally provided with guide shaft bearing assembly, the guide shaft bearing assembly includes axle sleeve, guide bearing, bearing baffle, and the axle sleeve is arranged
On power transmission shaft, the guide bearing is located at pedestal ring structure and the shaft room, and the bearing baffle envelope is located at the guide bearing
The end of the pedestal ring structure of side, the bearing baffle prevents the guide bearing from deviating from from the pedestal ring structure.
10. nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that the pump seat passes through water
Mud basis is fixed on the porch in the pump hole, and the concrete pedestal ring is located on the outside lower half of the pump seat, the pump
Seat outside lower half is provided with the pump housing and installs ring seat with the ground surface end of the concrete pedestal junction, and it is axle that the pump housing installs ring seat
Section circulus of a lateral H shape, the pump housing installs the bottom margin of ring seat and is provided with reinforcement by connection part, the connection
Reinforcement feature includes connecting hook, connecting pin, and hook tail and the pump housing of the connecting hook are installed ring seat bottom margin and be fixedly connected,
The gib head of the connecting hook reach deep down into the concrete pedestal formed fixation link, one end of the connecting pin is pacified with the pump housing
Dress ring seat bottom margin is fixedly connected, and the other end of the connecting pin reaches deep down into the concrete pedestal and forms a fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621090522.6U CN206175248U (en) | 2016-09-29 | 2016-09-29 | Nuclear power station house service pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621090522.6U CN206175248U (en) | 2016-09-29 | 2016-09-29 | Nuclear power station house service pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175248U true CN206175248U (en) | 2017-05-17 |
Family
ID=58676878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621090522.6U Active CN206175248U (en) | 2016-09-29 | 2016-09-29 | Nuclear power station house service pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337820A (en) * | 2016-09-29 | 2017-01-18 | 上海阿波罗机械股份有限公司 | Water pump for nuclear power station plant |
-
2016
- 2016-09-29 CN CN201621090522.6U patent/CN206175248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337820A (en) * | 2016-09-29 | 2017-01-18 | 上海阿波罗机械股份有限公司 | Water pump for nuclear power station plant |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 555, Yisong Road, Nanqiao Town, Fengxian District, Shanghai 201401 Patentee after: SHANGHAI APOLLO MACHINERY Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 555, Yisong Road, Nanqiao Town, Fengxian District, Shanghai 201401 Patentee before: SHANGHAI APOLLO MACHINERY Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder |