CN206175311U - Pump body structure of nuclear power station house service pump - Google Patents
Pump body structure of nuclear power station house service pump Download PDFInfo
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- CN206175311U CN206175311U CN201621092186.9U CN201621092186U CN206175311U CN 206175311 U CN206175311 U CN 206175311U CN 201621092186 U CN201621092186 U CN 201621092186U CN 206175311 U CN206175311 U CN 206175311U
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Abstract
The utility model relates to a pump body structure of nuclear power station house service pump, including motor cabinet, pump seat, connecting pipe subassembly, blower inlet casing subassembly, the loudspeaker of intaking, the motor cabinet passes through pump cover and pump seat fixed connection, and the pump seat seat is established on the pump is cheated, and pump cover central authorities are equipped with runs through the tubulose bearing frame, and the bearing frame kneck is equipped with the mechanical seal ring subassembly, and the connecting pipe subassembly is including establishing play water return bend in the pump seat, be equipped with the main shaft through -hole on the play water return bend outside curved wall, the play water end (W. E. ) that goes out the water return bend leads to to the side of the pump seat, go out the intake end and the sealed intercommunication of connecting pipe E of water return bend, connecting pipe E seals up the intercommunication with intermediate shaft bearing frame B after leading to the pump seat to the lower seal, intermediate shaft bearing frame B and the sealed intercommunication of connecting pipe D, connecting pipe D and the sealed intercommunication of intermediate shaft bearing frame A, intermediate shaft bearing frame A and the sealed intercommunication of connecting pipe A, the blower inlet casing subassembly includes the blower inlet casing, lower blower inlet casing. The utility model discloses a whole suction pump formula structure has stable in structure, maintains convenient characteristics.
Description
Technical field
The utility model is related to a kind of pump body structure of water pump, the pump housing knot of more particularly to a kind of nuclear power station house service pump
Structure, belongs to pumping plant 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
The pump body structure of the utility model nuclear power station house service pump discloses new scheme, there is provided a kind of CAP1400 shows
The pump body structure of model engineering house service pump, using overall pump type structure design is taken out, and is solved existing long-shaft pump and is safeguarded asking for inconvenience
Topic.
The pump body structure of the utility model nuclear power station house service pump includes motor cabinet, pump seat, connecting pipe component, blower inlet casing group
Part, water-inlet horn, motor cabinet is fixedly connected by pump cover with pump seat, and pump seat seat is located on pump hole, and pump cover central authorities are provided with through pipe
Shape bearing block, bearing block interface is provided with mechanical seal ring assemblies, and connecting pipe component includes that the water outlet being located in the pump seat is curved
Pipe, curved wall is provided with spindle through-hole on the outside of Discharging bent-tube, the water side of Discharging bent-tube from pump seat side pass-out, Discharging bent-tube
Water inlet end forms sealing and connects A with connecting tube E, and connecting tube E seals connected with jackshaft bolster B sealings after pass-out pump seat downwards,
Jackshaft bolster B connects B with connecting tube D-shaped into sealing, and connecting tube D forms sealing and connects C, intermediate bearing with jackshaft bolster A
Frame A forms sealing and connects D, Discharging bent-tube, connecting tube E, jackshaft bolster B, connecting tube D, jackshaft bolster A, company with connecting tube A
Adapter A is formed and is stooped straight connecting pipe component entirety, and water conservancy diversion shell component includes upper blower inlet casing, lower blower inlet casing, upper blower inlet casing
Water side forms sealing and connects E with connecting tube A, and the water inlet end of upper blower inlet casing forms sealing and connects F with lower blower inlet casing water side, under
The water inlet end of blower inlet casing forms sealing and connects G with the tapered end of water-inlet horn, and it is in calabash that upper blower inlet casing, lower blower inlet casing form shaft section
Axle is provided with the water conservancy diversion shell component entirety of the bend flow channel of reed shape, jackshaft bolster A, jackshaft bolster B, water-inlet horn along axis
Umbrella runner pedestal ring structure, umbrella runner pedestal ring structure are provided with frame ring structure, upper blower inlet casing, lower blower inlet casing along axis
Blower inlet casing ring flow passage structure is cooperatively formed with shaft section in lageniform bend flow channel.
The pump body structure of the utility model nuclear power station house service pump provides a kind of CAP1400 demonstration projects house service pump
Pump body structure, takes out pump type structure, with Stability Analysis of Structures, the characteristics of easy to maintenance using overall.
Description of the drawings
Fig. 1 is the cross-sectional schematic of this programme pump body structure.
Fig. 2 is the cross-sectional schematic of pump seat and connecting pipe component top assembling structure.
Fig. 3 is the schematic diagram of inlet pipeline.
Fig. 4 is the cross-sectional schematic of motor cabinet.
Fig. 5 is the cross-sectional schematic of jackshaft bolster B.
Fig. 6 is the cross-sectional schematic of connecting tube D.
Fig. 7 is the cross-sectional schematic of jackshaft bolster A.
Fig. 8 is the cross-sectional schematic of connecting tube A.
Fig. 9 is the cross-sectional schematic of upper blower inlet casing.
Figure 10 is the cross-sectional schematic of lower blower inlet casing.
Figure 11 is the cross-sectional schematic of water-inlet horn.
Figure 12 is the scheme of installation of this programme pump body structure.
Figure 13 is the close-up schematic view in mounting structure A portions in Figure 12.
Figure 14 is the close-up schematic view in mounting structure B portions in Figure 12.
Wherein, 1 is water-inlet horn, and 9 is lower blower inlet casing, and 12 is upper blower inlet casing, and 16 is connecting tube A, and 17 is jackshaft bolster
A, 22 is connecting tube D, and 25 is connecting tube E, and 26 is pump seat, and 28 is Discharging bent-tube, and 29 is anti-flange, and 33 is outlet pipeline, and 35 are
Pump cover, 37 is bearing block, and 38 is mechanical seal ring assemblies, and 39 is motor cabinet, and 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, the pump body structure of the utility model nuclear power station house service pump includes motor cabinet, pump seat, connecting tube group
Part, water conservancy diversion shell component, water-inlet horn, motor cabinet is fixedly connected by pump cover with pump seat, and pump seat seat is located on pump hole, pump cover central authorities
It is provided with through tubulose bearing block, bearing block interface is provided with mechanical seal ring assemblies, connecting pipe component includes being located at the pump seat
Interior Discharging bent-tube, curved wall is provided with spindle through-hole on the outside of Discharging bent-tube, the water side of Discharging bent-tube from pump seat side pass-out,
The water inlet end of Discharging bent-tube and connecting tube E form sealing and connect A, connecting tube E seal downwards after pass-out pump seat with jackshaft bolster B
Sealing connection, jackshaft bolster B connects B with connecting tube D-shaped into sealing, and connecting tube D forms sealing and connects C with jackshaft bolster A,
Jackshaft bolster A forms sealing and connects D, Discharging bent-tube, connecting tube E, jackshaft bolster B, connecting tube D, jackshaft with connecting tube A
Bolster A, connecting tube A are formed and stoop straight connecting pipe component entirety, and water conservancy diversion shell component includes upper blower inlet casing, lower blower inlet casing, on
The water side of blower inlet casing forms sealing and connects E with connecting tube A, and the water inlet end of upper blower inlet casing is formed with lower blower inlet casing water side and sealed
Connection F, the water inlet end of lower blower inlet casing forms sealing and connects G with the tapered end of water-inlet horn, and upper blower inlet casing, lower blower inlet casing form axle
Water conservancy diversion shell component entirety of the section in lageniform bend flow channel, along axis in jackshaft bolster A, jackshaft bolster B, water-inlet horn
Line is provided with pedestal ring structure, upper blower inlet casing, lower blower inlet casing and is provided with umbrella runner pedestal ring structure, umbrella runner axle along axis
Frame ring structure cooperatively forms blower inlet casing ring flow passage structure with shaft section in lageniform bend flow channel.The pump body structure of such scheme is adopted
Pump type structure is taken out with overall, the workpiece below the basis of pump can be examined in the case where outlet conduit is not dismantled
Repair.
The long-shaft pump that this programme is applied upper end axle envelope in starting mode of pump certainly exists instantaneous unlubricated friction operating mode, in order to protect
Card mechanical seal ring assemblies can bear the unlubricated friction operating mode, and this programme have also been devised the scheme of diversion flushing, as shown in Figure 2,3,
Specifically mechanical seal ring assemblies also include flushing line, and flushing system includes inlet pipeline, outlet pipeline, and inlet pipeline includes
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 with it is outer
Portion's industry water source connection, the water side of external industry water inlet channel is connected by three-way connection with the water inlet end in water inlet manifold road
Logical, 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 threeway in water pump
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, goes out
Water lines access 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
Change, this programme is additionally arranged on pipeline valve member, specifically external industry water inlet channel on the basis of such scheme
Water inlet control valve group is provided with, water inlet control valve group includes forming stop valve A, check-valves, the stop valve B of series connection, water in water pump
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 inlet channel
Close in the state of interior hydraulic pressure, flushing line forms pump interior circulation flush loop, and check-valves is in water inlet channel in water pump
Hydraulic pressure 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.I.e.
This programme is in order that the more safe and reliable operation of pump, when the flushing line is designed, inlet pipeline is rinsed by two-way water source and set
Meter, is respectively water pump inside (pumped (conveying) medium) and external industry water, 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, i.e., inlet pipeline upper check valve leads to, and outer water receiving is rinsed to sealing, when external water pressure is less than pump bulk medium
In the case of pressure, i.e., inlet pipeline upper check valve is closed, and pump body water is rinsed.Therefore, this programme is in running
Even if external industry water failure, also have pump intrinsic seawater and machine envelope is rinsed, the operation and machine to water pump is sealed not
Can there is any impact.The design at two-way water source preferably resolves mechanical seal ring assemblies under unlubricated friction operating mode and normal fortune
The problems such as cooling in row.
The long-shaft pump that this programme is applied operationally rotates generation vibration, and the operation to pump has a negative impact, in order to
This vibration is monitored, the adverse effect that vibration is produced to the part of pump is reduced, this programme is additionally provided with vibration detecting device on motor cabinet,
Vibration detecting device monitors the three-dimensional vibrating situation of 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 caused by vibration between pump parts loosens, deforms, shifts, this programme have also been devised company
The firm strengthened scheme for connecing, i.e., as shown in D in Fig. 2,6~11, along upper spindle through-hole on curved wall specifically on the outside of Discharging bent-tube
Axis be provided with upwardly extending bend loss adpting flange, the downside of bend loss adpting flange and pump cover is along described through tubulose
The upper main shaft seal flange that the axis of bearing block extends downwardly forms sealing connection H, sealing connection A, sealing connection B, sealing
If 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
Dry alignment pin, this programme preferably connects in sealing connection A, sealing connection B, sealing connection C, sealing connection D, sealing connection E, sealing
Logical F, sealing connection G, the flange seal junction of sealing connection H are provided with 3 alignment pins for circumferentially arranging at equal intervals.Consider
The water pump of this programme is longer, and outer cylinder body is formed by connecting by multiple parts, therefore adjacent two parts junction all has certain matching somebody with somebody
Gap is closed, is the concentric requirement for ensureing pump, adjusted behind gap by special installation tool when water pump is installed, then the method on cylinder
3 alignment pins are equipped with blue face to be 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 reinforcement measure, and specifically pump seat is fixed on the porch in pump hole by concrete pedestal, and concrete pedestal ring sets
On the outside lower half of pump seat, lower half is provided with pump housing mounting ring with the ground surface end of concrete pedestal junction on the outside of the pump seat
Seat, it is shaft section circulus of a lateral H shape that the pump housing installs ring seat, and the pump housing installs the bottom margin of ring seat and is provided with to connect and adds
Gu part, reinforcement by connection part includes connecting hook, connecting pin, hook tail and the pump housing of connecting hook are installed ring seat bottom margin and are fixed and connect
Connect, the gib head of connecting hook reaches deep down into concrete pedestal and forms fixation and links, and one end and the pump housing of connecting pin install ring seat bottom sides
Edge is fixedly connected, and the other end of connecting pin reaches deep down into concrete pedestal and forms a fixed connection.Further, in order to protect long-shaft pump to
The pump body portion that underground extends, the concrete pedestal of this programme extends downwardly the portion for going deep into pump hole in connecting pipe component and is formed
Cement protects hoistway, cement protection hoistway to prevent the soil layer motion of pump hole from damaging connecting pipe component.
In order to improve the practical application effect of pump, optimize applicating maintenance, this programme has also carried out related optimization design.In order to
Ensure that the gas that valve inner is produced can be discharged in time, it is to avoid the unusual fluctuation of valve inner pressure affects the normal work of pump, we
Case is provided with air bleeding valve, gas in air bleeding valve excavationg pump on the upside of pump cover.It is rationally sharp in order to improve the flow of connecting pipe component
With energy storage state of the current after water conservancy diversion shell component, connecting tube A of this programme is the tube part along the direction flaring that draws water, from
And effectively improve the discharge in connecting tube.
The pump body structure of the nuclear power station house service pump of this programme provides a kind of pump of CAP1400 demonstration projects house service pump
Body structure, using overall pump type structure is taken out, and facilitates repair and maintenance, and using flushing line the dry of mechanical seal ring assemblies is improved
Operating mode of rubbing tolerance level, using vibration detecting device and adds the vibration inside the scheme supervising device of alignment pin and asks in part junction
Topic, the impact that stability when vibration works the pump housing is brought is reduced using the pump mounting structure strengthened.Based on above feature, this
The pump body structure of the nuclear power station house service pump of scheme compares existing like product and has substantive distinguishing features and progress.
The pump body structure of the nuclear power station house service pump of this programme is not limited to the content disclosed in specific embodiment, implements
The technical scheme occurred in example can be with individualism, it is also possible to mutually include, and those skilled in the art combine public according to this programme
Know that simple alternative that general knowledge is made falls within the scope of this programme.
Claims (10)
1. a kind of pump body structure of nuclear power station house service pump, is characterized in that including motor cabinet, pump seat, connecting pipe component, blower inlet casing
Component, water-inlet horn, the motor cabinet is fixedly connected by pump cover with the pump seat, and the pump seat seat is located on pump hole, described
Pump cover central authorities are provided with through tubulose bearing block, and the bearing block interface is provided with mechanical seal ring assemblies, the connecting pipe component
Including the Discharging bent-tube being located in the pump seat, curved wall is provided with spindle through-hole on the outside of the Discharging bent-tube, and the water outlet is curved
The water side of pipe is from pump seat side pass-out, and water inlet end and connecting tube E of the Discharging bent-tube form sealing and connect A, described
Connecting tube E seals connect with jackshaft bolster B sealings after pump seat described in pass-out downwards, the jackshaft bolster B and connecting tube D-shaped
Into sealing connection B, connecting tube D forms sealing and connects C, the jackshaft bolster A and connecting tube A shape with jackshaft bolster A
Into sealing connection D, the Discharging bent-tube, connecting tube E, jackshaft bolster B, connecting tube D, jackshaft bolster A, connecting tube A are formed
On stoop straight connecting pipe component entirety, the water conservancy diversion shell component includes upper blower inlet casing, lower blower inlet casing, and the upper blower inlet casing goes out
Water end (W.E.) forms sealing and connects E with connecting tube A, and the water inlet end of the upper blower inlet casing forms close with the lower blower inlet casing water side
Envelope connection F, the water inlet end of the lower blower inlet casing is formed to seal with the tapered end of the water-inlet horn and connects G, the upper blower inlet casing,
Lower blower inlet casing forms water conservancy diversion shell component entirety of the shaft section in lageniform bend flow channel, the jackshaft bolster A, jackshaft bolster
It is provided with pedestal ring structure, the upper blower inlet casing, lower blower inlet casing along axis in B, water-inlet horn and is provided with umbrella stream along axis
Road pedestal ring structure, the umbrella runner pedestal ring structure cooperatively forms blower inlet casing with the shaft section in lageniform bend flow channel
Ring flow passage structure.
2. the pump body structure of nuclear power station house service pump according to claim 1, it is characterised in that the mechanical seal ring group
Part also includes flushing line, and the flushing system includes inlet pipeline, outlet pipeline, and the inlet pipeline includes external industry water
Water inlet channel, water inlet manifold road in inlet channel, water pump, the water inlet end and external industrial of the external industry water inlet channel
Water source is connected, and the water side of the external industry water inlet channel is connected by three-way connection with the water inlet end in the water inlet manifold road
Logical, the water inlet end of water inlet channel is connected with water source in water pump in the water pump, the water side of water inlet channel in the water pump
Connected with the water inlet end in the water inlet manifold road by the three-way connection, the water side in the water inlet manifold road is from the machinery
The side of ring assembly is passed through, and the outlet pipeline accesses pump hole from the opposite side pass-out of the mechanical seal ring assemblies.
3. the pump body structure of nuclear power station house service pump according to claim 2, it is characterised in that the external industry water enters
Waterpipe is provided with water inlet control valve group, and the water inlet control valve group includes forming stop valve A, check-valves, the stop valve of series connection
B, water inlet channel is provided with shutoff valve C, hydraulic pressure of the check-valves in water inlet channel in the water pump in the water pump
Close more than in the state of the hydraulic pressure in the external industry water inlet channel, the flushing line forms pump interior circulation and rinses back
Road, hydraulic pressure of the check-valves in water inlet channel in the water pump is less than the hydraulic pressure in the external industry water inlet channel
In the state of open, the flushing line to be formed and rinse water route outside pump.
4. the pump body structure of nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that described
Vibration detecting device is additionally provided with motor cabinet, the vibration detecting device monitors the three-dimensional vibrating situation of water pump.
5. the pump body structure of nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that described
Upwardly extending bend loss adpting flange is provided with along the axis of the upper spindle through-hole on curved wall on the outside of Discharging bent-tube, it is described curved
The upper main shaft seal that pipeline section adpting flange is extended downwardly with the downside of the pump cover along the axis through tubulose bearing block
Flange forms sealing 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. the pump body structure of nuclear power station house service pump according to claim 5, it is characterised in that the sealing connection A, close
Envelope connection B, sealing connection C, sealing connection D, sealing connection E, sealing connection F, sealing connection G, the flange seal of sealing connection H
Junction is provided with 3 alignment pins for circumferentially arranging at equal intervals.
7. the pump body structure of nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that described
The upside of pump cover is provided with air bleeding valve, gas in the air bleeding valve excavationg pump.
8. the pump body structure of nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that described
Connecting tube A is the tube part along the direction flaring that draws water.
9. the pump body structure of nuclear power station house service pump according to any one of claim 1 to 3, it is characterised in that described
Pump seat is fixed on the porch in the pump hole by concrete pedestal, and the concrete pedestal ring is located at the outside lower half of the pump seat
On, lower half is provided with the pump housing and installs ring seat, the pump housing peace with the ground surface end of the concrete pedestal junction on the outside of the pump seat
Dress ring seat is shaft section circulus of a lateral H shape, and the pump housing installs the bottom margin of ring seat and is provided with reinforcement by connection portion
Part, the reinforcement by connection part includes connecting hook, connecting pin, and hook tail and the pump housing of the connecting hook install ring seat bottom sides
Edge is fixedly connected, and the gib head of the connecting hook reaches deep down into the concrete pedestal and forms fixation and links, one end of the connecting pin
Ring seat bottom margin is installed with the pump housing to be fixedly connected, the other end of the connecting pin reaches deep down into the concrete pedestal and formed
It is fixedly connected.
10. the pump body structure of nuclear power station house service pump according to claim 9, it is characterised in that the concrete pedestal to
Under extend in the connecting pipe component and go deep into the portion in pump hole and form cement protection hoistway, cement protection hoistway is prevented
The soil layer motion of pump hole damages the connecting pipe component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621092186.9U CN206175311U (en) | 2016-09-29 | 2016-09-29 | Pump body structure of nuclear power station house service pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621092186.9U CN206175311U (en) | 2016-09-29 | 2016-09-29 | Pump body structure of nuclear power station house service pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175311U true CN206175311U (en) | 2017-05-17 |
Family
ID=58678076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621092186.9U Active CN206175311U (en) | 2016-09-29 | 2016-09-29 | Pump body structure of nuclear power station house service pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175311U (en) |
-
2016
- 2016-09-29 CN CN201621092186.9U patent/CN206175311U/en active Active
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| GR01 | Patent grant | ||
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| 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 |