CN208221119U - Vertical sectional type condensate pump - Google Patents
Vertical sectional type condensate pump Download PDFInfo
- Publication number
- CN208221119U CN208221119U CN201820328896.XU CN201820328896U CN208221119U CN 208221119 U CN208221119 U CN 208221119U CN 201820328896 U CN201820328896 U CN 201820328896U CN 208221119 U CN208221119 U CN 208221119U
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Abstract
Vertical sectional type condensate pump is related to a kind of vertical condensation water pump, relates in particular to superhigh-pressure high-temp gas power plant with vertical sectional type condensate pump.The utility model includes the bracket at top, the cylinder of the sucking Spit Section and bottom at middle part, and the pump shaft for being set to bracket, sucking Spit Section and body centre, it is characterized by: pump shaft lower end is located in cylinder, it is provided with first-stage double suction impeller, it is provided with middle section above first-stage double suction impeller, is located between sucking Spit Section and bracket in the middle part of pump shaft and is provided with balancing drum；The middle section includes the middle cylinder being composed of multiple shell rings, and a secondary impeller is provided in each shell ring, is provided with guide vane above secondary impeller.
Description
Technical field
The utility model relates to a kind of vertical condensation water pump, superhigh-pressure high-temp gas power plant is related in particular to vertical
Sectional type condensate pump.
Background technique
The power generation of superhigh-pressure high-temp coal gas is the new skill that the current gas using residual heat efficiency power generation being relatively widely used generallys use
Art, iron and steel enterprise's coal produce can value there is 34% can be converted into byproduct coal gas, make full use of secondary energy sources high efficiente callback using rich
Abundant coal gas power generation plays a very important role to iron and steel enterprise and response national energy-saving environmental protection tool.
Condensate pump is important condensate return system pump, is the important component part of entire condensate system, coagulates
Bearing water pump is that will be transported to low-pressure heater after the condensate-water polishing that condenser generates, during participating in entire steam turbine power generation
Water circulation.
The boiler that superhigh-pressure high-temp coal gas power generation at present uses is superpressure boiler, existing conventional centrifugal pump of horizontal axis and general
The pressure of logical vertical centrifugal pump, cavitation performance are unable to satisfy recycling and the water supply requirement of condensate system.
Summary of the invention
The utility model provides a kind of vertical sectional multistage condensate pump of superhigh-pressure high-temp aiming at the above problem.
In order to realize the above-mentioned purpose of the utility model, the utility model adopts the following technical solution, the utility model packet
The bracket at top, the cylinder of the sucking Spit Section and bottom at middle part are included, and is set to bracket, sucking Spit Section and body centre
Pump shaft, it is characterised in that: pump shaft lower end is located in cylinder, is provided with first-stage double suction impeller, above first-stage double suction impeller
It is provided with middle section, is located between sucking Spit Section and bracket in the middle part of pump shaft and is provided with balancing drum；The middle section includes by multiple cylinders
The middle cylinder being composed is saved, a secondary impeller is provided in each shell ring, is provided with guide vane above secondary impeller.
As a kind of preferred embodiment of the utility model, the extraneous deaeration pipe of connection is provided at the top of the sucking Spit Section
Road.
As another preferred embodiment of the utility model, the lowermost shell ring lower surface is provided with flange, flange
Outer rim be provided with the rod that is connected of sucking Spit Section bottom, the multiple shell ring by flange, suck Spit Section bottom surface and
Rod is integrally connected.
The utility model has the beneficial effects that the vertical sectional type condensate pump of 1. the utility model have meet 100MW and
Centrifugal pump of horizontal axis there is the secondary impeller of guide vane to be applied to by the performance requirement of following superhigh-pressure high-temp gas power plant condensate pump
In vertical condensation water pump, the series than common water conservancy diversion shell-type condensate pump impeller under identical operating condition is few by 50%, than common horizontal from
Heart pump occupied space saves 60~70%.
2. the condensate pump axial force balance mechanism of the utility model uses included balancing drum method, does not need motor and hold
The axial force balance function of carrying on a shoulder pole pump, reduces the manufacture requirement and purchase cost of motor.Effectively increase the axial force balance of pump
Ability reduces pump operation in the process because of the excessive failure for burning motor bearings of the axial force of pump.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
1 it is first-stage double suction impeller in attached drawing, 2 be pump shaft, 3 be cylinder, 4 be flange, 5 be rod, 6 be secondary impeller, 7 is
Guide vane, 8 be sucking Spit Section, 9 be balancing drum, 10 be degassing pipeline, 11 be bracket, 12 be shaft coupling.
Specific embodiment
The utility model includes the bracket 11 at top, and middle part sucks the cylinder 3 of Spit Section 8 and bottom, and is set to
Bracket 11, the pump shaft 2 for sucking Spit Section 8 and 3 center of cylinder, it is characterised in that: 2 lower end of pump shaft is located in cylinder 3, is arranged thereon
There is first-stage double suction impeller 1, middle section is provided with above first-stage double suction impeller 1, is located at sucking Spit Section 8 and bracket 11 in the middle part of pump shaft 2
Between be provided with balancing drum 9；The middle section includes the middle cylinder being composed of multiple shell rings, is provided in each shell ring primary
Grade impeller 6, is provided with guide vane 7 above secondary impeller 6.
As a kind of preferred embodiment of the utility model, the extraneous degassing of connection is provided at the top of the sucking Spit Section 8
Pipeline 10.
As another preferred embodiment of the utility model, the lowermost shell ring lower surface is provided with flange 4, flange
4 outer rim is provided with the rod 5 being connected with sucking 8 bottom of Spit Section, and the multiple shell ring passes through flange 4, sucking 8 bottom of Spit Section
Face and rod 5 are integrally connected.
The condensate pump thrust bearing of the utility model uses one group of SKF rolling bearing installed back-to-back, passes through thin oil
Oil sump lubrication, than the running temperature that common grease lubrication can be effectively reduced bearing, improves the service life of bearing, sets in oil sump
It is equipped with cooling water coil, the heat that bearing generates is taken away.
The entrance edge of blade of first-stage double suction impeller 1 is set as in plane projection not in the same axial plane.The utility model
Vertical sectional type condensate pump net positive suction head it is smaller by 50% than common condensate pump net positive suction head, the entrance edge of blade of double-entry impeller
Using not on the same axial plane, the cambered design that radius of curvature increases, entrance edge of blade is to suction inlet in plane projection
The design of extension, performance curve does not generate hump while improving the cavitation performance of pump.
The sucking of the condensate pump of the utility model and discharge opening are arranged on discharge seat, same all above the cylinder of pump 3
One horizontal line position effectively reduces the difficulty of pump foundation construction and pipe arrangement.
The condensate pump of the utility model uses water pilot bearing made of advanced composite material (ACM) (AC-3B), is able to bear
Operation is without damaging in liquid medium within 130 DEG C.
The condensate pump of the utility model is connected by flexible sheet shaft coupling 12, by motor drive, can adapt to not
With working condition requirement when revolving speed, to use unit to save the consumption of electric energy.
It is understood that being merely to illustrate the utility model above with respect to the specific descriptions of the utility model and not being
It is limited to technical solution described in the utility model embodiment, those skilled in the art should understand that, it still can be with
It modifies to the utility model or equivalent replacement, to reach identical technical effect；Needs are used as long as meeting, all in this reality
Within novel protection scope.
Claims (1)
1. vertical sectional type condensate pump, the bracket (11) including top, the cylinder of sucking Spit Section (8) and bottom at middle part
(3), and be set to bracket (11), suck Spit Section (8) and cylinder (3) center pump shaft (2), it is characterised in that: pump shaft (2)
Lower end is located in cylinder (3), is provided with first-stage double suction impeller (1), is provided with middle section above first-stage double suction impeller (1), pumps
It is located between sucking Spit Section (8) and bracket (11) in the middle part of axis (2) and is provided with balancing drum (9)；The middle section includes by multiple cylinders
The middle cylinder being composed is saved, is provided with a secondary impeller (6) in each shell ring, is provided with guide vane above secondary impeller (6)
(7)；The extraneous degassing pipeline (10) of connection is provided at the top of sucking Spit Section (8)；The lowermost shell ring lower surface
It is provided with flange (4), the outer rim of flange (4) is provided with the rod (5) being connected with sucking Spit Section (8) bottom, the multiple cylinder
Section is integrally connected by flange (4), sucking Spit Section (8) bottom surface and rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328896.XU CN208221119U (en) | 2018-03-12 | 2018-03-12 | Vertical sectional type condensate pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328896.XU CN208221119U (en) | 2018-03-12 | 2018-03-12 | Vertical sectional type condensate pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221119U true CN208221119U (en) | 2018-12-11 |
Family
ID=64531215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820328896.XU Active CN208221119U (en) | 2018-03-12 | 2018-03-12 | Vertical sectional type condensate pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208221119U (en) |
-
2018
- 2018-03-12 CN CN201820328896.XU patent/CN208221119U/en active Active
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