CN206478011U - A kind of electronic work water pump is with ultralow specific revolution hydraulic model - Google Patents
A kind of electronic work water pump is with ultralow specific revolution hydraulic model Download PDFInfo
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- CN206478011U CN206478011U CN201720118017.6U CN201720118017U CN206478011U CN 206478011 U CN206478011 U CN 206478011U CN 201720118017 U CN201720118017 U CN 201720118017U CN 206478011 U CN206478011 U CN 206478011U
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- impeller
- water pump
- electronic work
- pump housing
- motor shaft
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Abstract
A kind of electronic work water pump is with ultralow specific revolution hydraulic model, including motor, connecting section, mechanical sealing parts, guide bearing, sealing ring, impeller nut, impeller, the pump housing, axle sleeve, motor shaft, motor is fixed on connecting section upper end, mechanical sealing parts are arranged on motor shaft, guide bearing is installed along with motor shaft with sleeve combination and couples pars infrasegmentalis, impeller upper and lower ends are by seal ring seal, impeller is fixed on motor shaft and is placed in the pump housing by impeller nut, and the pump housing is fixed on connection section lower end；The delivery chamber of the described pump housing uses volute casing structure, and volute casing is rectangular cross section, and Impeller Design is closed centrifugal formula impeller, and the blade of impeller is five pieces of blades.The utility model low discharge, high-lift, structure are newly, efficiency is higher, used in nuclear power control system as electronic work water pump, meets performance requirement of the nuclear power control system to pump, applied in electronic work control system of water pump technical field.
Description
Technical field
The utility model is related to a kind of electronic work water pump in electronic work control system of water pump technical field with ultralow
Specific revolution hydraulic model.
Background technology
At present, electronic work water pump is one of important key equipment of nuclear power power control system, electronic work water pump root
According to the requirement of system power source is provided for control device.To improve nuclear power control technology level, the development of nuclear power control system is adapted to
Demand, we require according to power control system, and electronic work water pump should elect low-specific-speed hydraulic model as.It is electric in the prior art
The hydraulic model for starting building to make water pump presence is undesirable, and enterprise's low-specific-speed database of hydraulic model is not enough, and structure is unsatisfactory for user's requirement.
Therefore our independent researches meet the new construction, new, low-flow high-lift and efficiency of user's request, higher one kind electricity
Start building to make water pump with ultralow specific revolution hydraulic model.Therefore, a kind of electronic work water pump is researched and developed with ultralow specific revolution waterpower
Model is always new problem anxious to be resolved.
The content of the invention
The purpose of this utility model is to provide a kind of electronic work water pump ultralow specific revolution hydraulic model, and the practicality is newly
Type is to meet nuclear power control system use requirement, in nuclear power control system, is used as electronic work water pump, with rill
Amount, high-lift, structure are new, efficiency is higher, meet performance requirement of the nuclear power control system to pump.
What the purpose of this utility model was realized in：A kind of electronic work water pump ultralow specific revolution hydraulic model, bag
Include motor, connecting section, mechanical sealing parts, guide bearing, sealing ring, impeller nut, impeller, the pump housing, axle sleeve, motor shaft, motor
Connecting section upper end is fixed on, mechanical sealing parts are arranged on motor shaft, and guide bearing is installed along with motor shaft with sleeve combination
With connection pars infrasegmentalis, impeller is fixed on motor shaft by seal ring seal, impeller nut and is placed in pump by impeller upper and lower ends
In body, the pump housing is fixed on connection section lower end；
Described electronic work water pump is designed as vertical single stage centrifugal pump, and parameter is flow Q=6.3m3/h；Lift H=
122m；Rotating speed n=2920r/min；Efficiency：≥20%；Specific speed is 12.3；
The delivery chamber of the described pump housing uses volute casing structure, and volute casing is rectangular cross section, and Impeller Design is closed centrifugal
Formula impeller, the blade of impeller is five pieces of blades；
The described pump housing is cast using essence, and impeller uses forging finish-milling welding structure.
The structure of the present utility model for being characterized by it.Its operation principle is that electronic work water pump is motor driving
Single-stage, single suction vertical pump, motor is upper, and pump is under, and pump is radially sucked, and radially spues.Impeller is the critical function of main pump unit
Part, circulation power is provided for medium.The pump housing is not only the spiral case in hydraulic part, plays a part of delivery chamber, also in suction
Suction chamber is designed at mouthful, efficiency is improved.Suction chamber and delivery chamber are made up of the spiral case of the pump housing, the medium kinetic energy that impeller is exported
Pressure energy is changed into, kinetic energy rejection is reduced.Straight down, discharge opening is horizontal tangent direction to the suction inlet of pump.Suction line, spues
The connection of pipe and system superintendent road uses flange connection pattern, and impeller of pump is directly installed in motor shaft lower shaft end, from suction line
The water of inspiration increases energy through impeller, and liquid kinetic energy is converted into pressure energy, into pump case, discharged by discharge pipe.
A kind of electronic work water pump with ultralow specific revolution hydraulic model compared with prior art, with low discharge, it is high-lift,
Structure is new, efficiency is higher, used in nuclear power control system as electronic work water pump, meets performance of the nuclear power control system to pump
It is required that the advantages of, it will be widely used in electronic work control system of water pump technical field.
Brief description of the drawings
Below in conjunction with the accompanying drawings and the utility model is described in detail embodiment.
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to the drawings, a kind of electronic work water pump ultralow specific revolution hydraulic model, including motor 1, connecting section 2, machinery
Seal member 3, guide bearing 4, sealing ring 5, impeller nut 6, impeller 7, the pump housing 8, axle sleeve 9, motor shaft 10, motor 1 are fixed on connection
The upper end of section 2 is connect, mechanical sealing parts 3 are arranged on motor shaft 10, and guide bearing 4 combines with axle sleeve 9 and is installed along with motor shaft 10
With the bottom of connecting section 2, the upper and lower ends of impeller 7 are sealed by sealing ring 5, and impeller 7 is fixed on motor shaft 10 and pacified by impeller nut 6
It is placed in the pump housing 8, the pump housing 8 is fixed on connection section 2 lower end.
Described electronic work water pump is designed as vertical single stage centrifugal pump, and parameter is flow Q=6.3m3/h；Lift H=
122m；Rotating speed n=2920r/min；Efficiency：≥20%；Specific speed is 12.3.
The delivery chamber of the described pump housing 8 uses volute casing structure, and volute casing is rectangular cross section, impeller 7 be designed as enclosed from
Core type impeller, the blade of impeller 7 is five pieces of blades.
The described pump housing 8 is cast using essence, and impeller 7 uses forging finish-milling welding structure.
The utility model is further discussed below with reference to embodiment：
The hydraulic model manufacture method of the described essence casting pump housing 8 is by three-dimensional modeling Cheng Mo, and this method dimensional discrepancy is small, light
Cleanliness is high, and waterpower molded line deviation is smaller.Impeller 7 uses forging finish-milling welding structure, and the structure ensures vane type line by milling
It is coincide with design requirement, subtended angle of blade, uniform degree, blade exit width error are smaller.The forming method energy of above-mentioned hydraulic part
Enough ensure the performance of ultralow specific revolution pump, reduce developing risk.
Because design difficulty is larger, hydraulic model is optimized design using velocity-coefficient method, to ensure lift, preferably
The cornerite of the number of blade and blade, to improve efficiency, reduces mechanical loss and reduces return loss, pump is imported and exported and selected
Selecting property is designed, it is desirable to which pump speed is moderate, and the transition of import and export flow velocity is uniform, to ensure rated point flow, structure to pump and preceding
Design is optimized in increasing back sealing ring size and gap, to realize unit performance index, to the inlet angle of impeller 7, the angle of outlet and
Design is optimized in the matching of vane type line and impeller 7 and spiral case, and efficiency is influenceed in order to reduce hydraulic sizes deviation,
Ensure that hydraulic sizes deviation meets design requirement, the processing technology to main hydraulic part is improved, the pump housing 8 is using essence
Casting, impeller 7 uses forging finish-milling welding structure.
Claims (4)
1. a kind of electronic work water pump ultralow specific revolution hydraulic model, including motor, connecting section, mechanical sealing parts, guide shaft
Hold, sealing ring, impeller nut, impeller, the pump housing, axle sleeve, motor shaft, it is characterised in that：Motor is fixed on connecting section upper end, machinery
Seal member is arranged on motor shaft, and guide bearing is installed along with motor shaft with sleeve combination and couples pars infrasegmentalis, above and below impeller
Impeller is fixed on motor shaft and is placed in the pump housing by seal ring seal, impeller nut by two ends, and the pump housing is fixed on connection section
Lower end.
2. a kind of electronic work water pump according to claim 1 is with ultralow specific revolution hydraulic model, it is characterised in that：It is described
Electronic work water pump be designed as vertical single stage centrifugal pump, parameter is flow Q=6.3m3/h；Lift H=122m；Rotating speed n=
2920r/min；Efficiency：≥20%；Specific speed is 12.3.
3. a kind of electronic work water pump according to claim 1 is with ultralow specific revolution hydraulic model, it is characterised in that：It is described
The delivery chamber of the pump housing use volute casing structure, volute casing is rectangular cross section, and Impeller Design is closed centrifugal formula impeller, impeller
Blade is five pieces of blades.
4. a kind of electronic work water pump according to claim 1 is with ultralow specific revolution hydraulic model, it is characterised in that：It is described
The pump housing using essence cast, impeller use forging finish-milling welding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118017.6U CN206478011U (en) | 2017-02-09 | 2017-02-09 | A kind of electronic work water pump is with ultralow specific revolution hydraulic model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118017.6U CN206478011U (en) | 2017-02-09 | 2017-02-09 | A kind of electronic work water pump is with ultralow specific revolution hydraulic model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206478011U true CN206478011U (en) | 2017-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720118017.6U Active CN206478011U (en) | 2017-02-09 | 2017-02-09 | A kind of electronic work water pump is with ultralow specific revolution hydraulic model |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575395A (en) * | 2017-09-22 | 2018-01-12 | 上海阿波罗智能装备科技有限公司 | Ship sea water pump |
-
2017
- 2017-02-09 CN CN201720118017.6U patent/CN206478011U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575395A (en) * | 2017-09-22 | 2018-01-12 | 上海阿波罗智能装备科技有限公司 | Ship sea water pump |
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