CN207229399U - A kind of condensate pump - Google Patents
A kind of condensate pump Download PDFInfo
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- CN207229399U CN207229399U CN201720940204.2U CN201720940204U CN207229399U CN 207229399 U CN207229399 U CN 207229399U CN 201720940204 U CN201720940204 U CN 201720940204U CN 207229399 U CN207229399 U CN 207229399U
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- cylinder
- blower inlet
- chopped
- inlet casing
- impeller
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Abstract
The utility model discloses a kind of condensate pump, including cylinder, chopped-off head propeller cap, first stage impeller, pump shaft, the cylinder interior bottom portion is provided with suction bell pipe, the suction bell pipe upper end is provided with the chopped-off head propeller cap, the chopped-off head propeller cap is internally provided with the first stage impeller, middle part is provided with multiple blower inlet casings inside the cylinder, the blower inlet casing upper end is provided with final stage blower inlet casing, the cylinder inner upper is provided with discharge seat, and the discharge seat side is provided with weather board；Middle part is provided with intermediate bearing body inside the cylinder, transmission shaft is provided with inside the intermediate bearing body, the transmission shaft lower end is provided with the pump shaft.The utility model have the advantage that including：By adjusting impeller, blower inlet casing waterpower beta angles, cornerite and inlet and outlet blade angle, efficiency is improved, sets weather board to be effectively improved flow behavior, improves the efficiency of pump, volumetric loss is small, and pump shaft uses pyramidal structure, easy to maintenance.
Description
Technical field
The utility model belongs to thermoelectricity therrmodynamic system device field, is to be related to a kind of condensate pump in more detail.
Background technology
During " 13 ", domestic main development 600MW, 1000MW energy conservation and environmental protection large and super-critical, ultra supercritical thermoelectricity
Unit, is continuously increased large-scale condensate pump demand, market prospects are fine.Original 10LDTN types condensate pump cannot meet city
Field needs, and lacks competitiveness, in order to meet the overall effect for requiring, improving condensate pump of domestic electrical energy saving of system consumption reduction
Rate, reduces first stage impeller net positive suction head into the problem that must be solved.
Utility model content
In order to overcome in the prior art pump working efficiency it is low, safeguard the defects of inconvenient, the utility model provides one
Kind condensate pump, the device improve by adjusting impeller, blower inlet casing waterpower beta angles, cornerite and inlet and outlet blade angle
Efficiency, sets weather board to be effectively improved flow behavior, improves the efficiency of pump, and volumetric loss is small, pump shaft use pyramidal structure, repairs
It is convenient.
To achieve these goals, the utility model provides following technical solution：
A kind of condensate pump, including cylinder, chopped-off head propeller cap, first stage impeller, pump shaft, the cylinder upper end are provided with
Electric machine support, the electric machine support are internally provided with support base；
The cylinder interior bottom portion is provided with suction bell pipe, and the suction bell pipe upper end is provided with the chopped-off head spiral shell
Shell is revolved, the chopped-off head propeller cap is internally provided with the first stage impeller, and the first stage impeller upper end is provided with chopped-off head sealing ring；
Middle part is provided with multiple blower inlet casings inside the cylinder, and the blower inlet casing upper end is provided with final stage blower inlet casing, institute
State and impeller is both provided with inside blower inlet casing and the final stage blower inlet casing, the impeller upper end is provided with sealing ring；
The cylinder inner upper is provided with discharge seat, and the discharge seat side is provided with weather board；
Middle part is provided with intermediate bearing body inside the cylinder, and transmission shaft, institute are provided with inside the intermediate bearing body
State transmission shaft lower end and the pump shaft is installed.
Using the above structure, by the flow passage components beta such as the first stage impeller, described impeller angles, cornerite and disengaging
The adjustment and optimization of mouth laying angle, have reached the effect that declared working condition point efficiency improves 3%, the discharge seat outlet passage and institute
State that final stage blower inlet casing water outlet water (flow) direction is in 90 ° can be effectively improved flow behavior by increasing the weather board, avoid the occurrence of
Vortex and reduce pump group efficiency, so as to reach the raising efficiency of pump, outer in the sealing ring increases helicla flute through place, utilizes
The F and high pressure end pressure P2 that makes a concerted effort of the radial load F1 that the impeller rotation produces, the power F2, F1 and F2 that helicla flute produces offset one
Part, reduces leakage rate（Volumetric loss）, so as to reach the raising efficiency of pump, the pump shaft end uses taper structure design, just
In the dismounting for realizing shaft coupling, maintenance difficulty and repair time can be reduced.
Further：The electric machine support is mounted by means of bolts on the cylinder upper end, and the support base passes through
Bolt is fixedly mounted on inside the electric machine support.
Further：The suction bell pipe is mounted by means of bolts on the cylinder interior bottom portion, the chopped-off head
Propeller cap is mounted by means of bolts on the suction bell pipe upper end.
Further：The blower inlet casing is mounted by means of bolts on middle part, the final stage water conservancy diversion inside the cylinder
Shell is mounted by means of bolts on the blower inlet casing upper end, the chopped-off head propeller cap, the blower inlet casing, the final stage blower inlet casing according to
Secondary connection, forms closed diversion cavity.
Further：The discharge seat is mounted by means of bolts on the cylinder inner upper, and the weather board leads to
Cross bolt and be fixedly mounted on the discharge seat side, and be connected by bolt with the cylinder inner wall.
Further：The intermediate bearing body is mounted by means of bolts in the middle part of the cylinder inner wall, the transmission
Axis is fixedly mounted on by way of interference fit inside the intermediate bearing body, and is installed on by bearing in the support base
Portion.
Further：The pump shaft is fixedly mounted on the transmission shaft lower end by shaft coupling, and the end of the pump shaft is adopted
With pyramidal structure, the pump shaft passes through inside the final stage blower inlet casing, the blower inlet casing, the chopped-off head propeller cap.
Further：The first stage impeller is mounted by means of bolts on the pump shaft end, and the chopped-off head sealing ring leads to
The mode of interference fit is fixedly mounted on the first stage impeller upper end, and the impeller is mounted by means of bolts on the pump shaft
Middle part, and be evenly distributed in the middle part of the pump shaft, the sealing ring is fixedly mounted on the impeller by way of interference fit
Upper end.
The utility model have the advantage that including：
The device improves effect by adjusting impeller, blower inlet casing waterpower beta angles, cornerite and inlet and outlet blade angle
Rate, sets weather board to be effectively improved flow behavior, improves the efficiency of pump, volumetric loss is small, and pump shaft uses pyramidal structure, maintenance side
Just.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the cut-away view of condensate pump described in the utility model；
Fig. 2A is the axial plane figure of the first stage impeller waterpower figure of condensate pump described in the utility model；
Fig. 2 B are the form drawings of the first stage impeller waterpower figure of condensate pump described in the utility model；
Fig. 3 A are the axial plane figures of the impeller waterpower figure of condensate pump described in the utility model；
Fig. 3 B are the form drawings of the impeller waterpower figure of condensate pump described in the utility model；
Fig. 4 A are the axial plane figures of the secondary guide vane waterpower figure of condensate pump described in the utility model；
Fig. 4 B are the form drawings of the secondary guide vane waterpower figure of condensate pump described in the utility model；
Fig. 5 A are the axial plane figures of the final stage guide vane waterpower figure of condensate pump described in the utility model；
Fig. 5 B are the form drawings of the final stage guide vane waterpower figure of condensate pump described in the utility model.
Number explanation is as follows in figure：
1st, cylinder；2nd, suction bell pipe；3rd, chopped-off head propeller cap；4th, first stage impeller；5th, chopped-off head sealing ring；6th, pump shaft；7、
Sealing ring；8th, impeller；9th, blower inlet casing；10th, final stage blower inlet casing；11st, transmission shaft；12nd, intermediate bearing body；13rd, discharge seat；14th, lead
Water plate；15th, support base；16th, electric machine support.
Embodiment
The technical solution of the utility model will be described in detail below.
It is as shown in Figure 1 a kind of condensate pump of the utility model structure, including cylinder 1, chopped-off head propeller cap 3, chopped-off head leaf
Wheel 4, pump shaft 6,1 upper end of cylinder are provided with electric machine support 16, and electric machine support 16 is internally provided with support base 15；
1 interior bottom portion of cylinder is provided with suction bell pipe 2, and 2 upper end of suction bell pipe is provided with chopped-off head propeller cap 3, first
Level propeller cap 3 is internally provided with first stage impeller 4, and 4 upper end of first stage impeller is provided with chopped-off head sealing ring 5；
The inside of cylinder 1 middle part is provided with multiple blower inlet casings 9, and 9 upper end of blower inlet casing is provided with final stage blower inlet casing 10, blower inlet casing
9 and final stage blower inlet casing 10 inside be both provided with impeller 8,8 upper end of impeller is provided with sealing ring 7；
1 inner upper of cylinder is provided with discharge seat 13, and 13 side of discharge seat is provided with weather board 14；
The inside of cylinder 1 middle part is provided with intermediate bearing body 12, and transmission shaft 11 is provided with inside intermediate bearing body 12, is driven
11 lower end of axis is provided with pump shaft 6.
As shown in Fig. 2A -5B, using the above structure, by the flow passage components beta such as first stage impeller 4, impeller 8 angles,
Cornerite and the adjustment and optimization for importing and exporting laying angle, have reached the effect that declared working condition point efficiency improves 3%, 13 water outlet of discharge seat
Runner and 10 water outlet water (flow) direction of final stage blower inlet casing are in 90 °, can be effectively improved flow behavior by increasing weather board 14, avoid
There is vortex and reduce pump group efficiency, so as to reach the raising efficiency of pump, increase helicla flute in the outer radius of sealing ring 7, utilize leaf
The F and high pressure end pressure P2 that makes a concerted effort of the radial load F1 that the rotation of wheel 8 produces, the power F2, F1 and F2 that helicla flute produces offset a part,
Reduce leakage rate（Volumetric loss）, so as to reach the raising efficiency of pump, 6 end of pump shaft uses taper structure design, is easy to implement connection
The dismounting of axis device, can reduce maintenance difficulty and repair time.
Preferably, electric machine support 16 is mounted by means of bolts on 1 upper end of cylinder, support base 15 is bolted
Inside electric machine support 16, suction bell pipe 2 is mounted by means of bolts on 1 interior bottom portion of cylinder, chopped-off head propeller cap 3
2 upper end of suction bell pipe is mounted by means of bolts on, blower inlet casing 9 is mounted by means of bolts on the inside of cylinder 1 middle part, end
Level blower inlet casing 10 is mounted by means of bolts on 9 upper end of blower inlet casing, and chopped-off head propeller cap 3, blower inlet casing 9, final stage blower inlet casing 10 are successively
Connection, forms closed diversion cavity, discharge seat 13 is mounted by means of bolts on 1 inner upper of cylinder, and weather board 14 passes through spiral shell
Bolt is fixedly mounted on 13 side of discharge seat, and is connected by bolt with 1 inner wall of cylinder, and intermediate bearing body 12 is consolidated by bolt
In the middle part of 1 inner wall of cylinder, transmission shaft 11 is fixedly mounted on by way of interference fit inside intermediate bearing body 12 for Dingan County,
And be installed on by bearing inside support base 15, pump shaft 6 is fixedly mounted on 11 lower end of transmission shaft, the end of pump shaft 6 by shaft coupling
Portion uses pyramidal structure, and pump shaft 6 is passed through from final stage blower inlet casing 10, blower inlet casing 9, the inside of chopped-off head propeller cap 3, and first stage impeller 4 passes through
Bolt is fixedly mounted on 6 end of pump shaft, and chopped-off head sealing ring 5 is fixedly mounted on 4 upper end of first stage impeller by way of interference fit,
Impeller 8 is mounted by means of bolts on the middle part of pump shaft 6, and is evenly distributed on the middle part of pump shaft 6, and sealing ring 7 passes through interference fit
Mode is fixedly mounted on 8 upper end of impeller.
More than, it is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited thereto,
Any one skilled in the art can readily occur in change or replace in the technical scope that the utility model discloses
Change, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be wanted with the right
Subject to the protection domain asked.
Claims (8)
- A kind of 1. condensate pump, it is characterised in that：Including cylinder, chopped-off head propeller cap, first stage impeller, pump shaft, the cylinder Upper end is provided with electric machine support, and the electric machine support is internally provided with support base；The cylinder interior bottom portion is provided with suction bell pipe, and it is spiral that the suction bell pipe upper end is provided with the chopped-off head Shell, the chopped-off head propeller cap are internally provided with the first stage impeller, and the first stage impeller upper end is provided with chopped-off head sealing ring；Middle part is provided with multiple blower inlet casings inside the cylinder, and the blower inlet casing upper end is provided with final stage blower inlet casing, described to lead Impeller is both provided with inside stream shell and the final stage blower inlet casing, the impeller upper end is provided with sealing ring；The cylinder inner upper is provided with discharge seat, and the discharge seat side is provided with weather board；Middle part is provided with intermediate bearing body inside the cylinder, and transmission shaft, the biography are provided with inside the intermediate bearing body Moving axis lower end is provided with the pump shaft.
- A kind of 2. condensate pump according to claim 1, it is characterised in that：The electric machine support is bolted installation In the cylinder upper end, the support base is mounted by means of bolts on inside the electric machine support.
- A kind of 3. condensate pump according to claim 1, it is characterised in that：The suction bell pipe is bolted peace Mounted in the cylinder interior bottom portion, the chopped-off head propeller cap is mounted by means of bolts on the suction bell pipe upper end.
- A kind of 4. condensate pump according to claim 1, it is characterised in that：The blower inlet casing is mounted by means of bolts on Middle part, the final stage blower inlet casing are mounted by means of bolts on the blower inlet casing upper end, the chopped-off head spiral shell inside the cylinder Rotation shell, the blower inlet casing, the final stage blower inlet casing are sequentially connected, and form closed diversion cavity.
- A kind of 5. condensate pump according to claim 1, it is characterised in that：The discharge seat is mounted by means of bolts on The cylinder inner upper, the weather board is mounted by means of bolts on the discharge seat side, and passes through bolt and institute Cylinder inner wall is stated to be connected.
- A kind of 6. condensate pump according to claim 1, it is characterised in that：The intermediate bearing body is bolted peace In the middle part of the cylinder inner wall, the transmission shaft is fixedly mounted on by way of interference fit in the intermediate bearing body Portion, and be installed on by bearing inside the support base.
- A kind of 7. condensate pump according to claim 1, it is characterised in that：The pump shaft is fixedly mounted on by shaft coupling The transmission shaft lower end, the end of the pump shaft use pyramidal structure, and the pump shaft is from the final stage blower inlet casing, the water conservancy diversion Passed through inside shell, the chopped-off head propeller cap.
- A kind of 8. condensate pump according to claim 1, it is characterised in that：The first stage impeller is bolted installation In the pump shaft end, the chopped-off head sealing ring is fixedly mounted on the first stage impeller upper end, institute by way of interference fit State impeller to be mounted by means of bolts in the middle part of the pump shaft, and be evenly distributed in the middle part of the pump shaft, the sealing ring passes through The mode of interference fit is fixedly mounted on the impeller upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720940204.2U CN207229399U (en) | 2017-07-31 | 2017-07-31 | A kind of condensate pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720940204.2U CN207229399U (en) | 2017-07-31 | 2017-07-31 | A kind of condensate pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229399U true CN207229399U (en) | 2018-04-13 |
Family
ID=61855151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720940204.2U Active CN207229399U (en) | 2017-07-31 | 2017-07-31 | A kind of condensate pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207229399U (en) |
-
2017
- 2017-07-31 CN CN201720940204.2U patent/CN207229399U/en active Active
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