CN201650762U - Vertical type cryogenic canned motor pump - Google Patents
Vertical type cryogenic canned motor pump Download PDFInfo
- Publication number
- CN201650762U CN201650762U CN2010201038198U CN201020103819U CN201650762U CN 201650762 U CN201650762 U CN 201650762U CN 2010201038198 U CN2010201038198 U CN 2010201038198U CN 201020103819 U CN201020103819 U CN 201020103819U CN 201650762 U CN201650762 U CN 201650762U
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- motor
- rotating shaft
- bearing body
- rotor
- stator
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Abstract
A vertical type cryogenic canned motor pump comprises a suction end with an inlet, a plurality of middle section shells connected with the suction end, a connecting section, a front motor cover, a rear motor cover and a rear bearing body; wherein, the front motor cover is connected with a front bearing body; the front bearing body and the rear bearing body are respectively provided with a rotating shaft in the center; the rotating shafts are provided with multi-level impellers arranged in the middle section shells; the outside of each impeller is provided with guide blades; a motor stator is arranged between the front motor cover and the rear motor cover; the rotating shaft is provided with a motor rotor; a stator and rotor canned cover clearance is arranged between the motor stator and the motor rotor; the rear bearing body is provided with an outlet; the rotating shaft is provided with a fourth flowing pore communicated with a central pore on the rotating shaft in a lower motor cavity; the cavity of the unclassified impeller is communicated with the lower motor cavity; the outlet and the lower motor cavity are communicated by the stator and rotor canned cover clearance and an upper motor cavity as well as the fourth flowing pore and the central pore on the rotating shaft. The vertical type cryogenic canned motor pump has the advantages of uneasy leakage, convenient use, low maintenance cost, strong reliability and low operating cost.
Description
Technical field
The utility model relates to a kind of pump, and particularly a kind of vertical deep cooling canned motorpump is mainly used in the conveying of deep cooling medium, as low temperature methane, and ethene, liquid gas etc., the minimum delivery temperature of medium can reach-160 ℃.
Background technique
The fed sheet of a media of cyropump is some deep cooling mediums, and it is low to have a boiling point, and low, the easy vaporization of viscosity, saturation vapour pressure height, vapor pressure curve such as vary with temperature significantly at characteristics.The operation of cyropump directly influences stability, continuity and the Security of process units.Domesticly select vertical cartridge type pump usually for use, in actual use, medium at the mechanical sealing surface place very easily gasification can cause the sealing surface dry friction, sealing surface place sparge water is frozen, so the user needs often to change mechanical seal, has wasted a large amount of maintenance expensess and dead time.These media all are inflammable and explosive substances in addition, and very easily causing stops stops production or accident in case leak, so very high to the reliability requirement of mechanical seal.
Summary of the invention
The purpose of this utility model provides the easy gasifying medium of a kind of deep cooling, do not have to leak, easy to use, the cost of overhaul is low, the vertical deep cooling canned motorpump of good reliability, overcomes the deficiencies in the prior art.
Vertical deep cooling canned motorpump of the present utility model includes the suction side of inlet, a plurality of middle piece housing, linkage section, motor protecgulum, motor bonnet, the rear bearing body that is connected with the suction side; The motor protecgulum is connected to the fore bearing body, on fore bearing body and rear bearing body, the rotating shaft that is positioned at the center is housed, the multistage impeller that is arranged in piece housing is installed in the rotating shaft, there is stator in each impeller outside, between motor protecgulum and motor bonnet, motor stator is arranged, rotor is arranged in rotating shaft, form rotor housing gap between motor stator and the rotor; On the rear bearing body, be provided with outlet, the 4th flow orifice that is communicated with center hole in the rotating shaft is arranged being positioned at motor cavity of resorption place in the rotating shaft, the inner chamber of level impeller is not connected with the motor cavity of resorption, be communicated with by rotor housing gap, motor epicoele between outlet and the motor cavity of resorption, also by the connection of the 4th flow orifice in the rotating shaft, center hole.
Vertical deep cooling canned motorpump of the present utility model has the 3rd flow orifice in the described rotating shaft that is positioned at motor epicoele place, is provided with second flow orifice on the rear bearing body, and outlet is communicated with center hole by second flow orifice, motor epicoele, the 3rd flow orifice.
Vertical deep cooling canned motorpump of the present utility model, described suction side and in each the outside of piece housing be covered with the pump chuck, be fixedly clamped by stage casing ring and pump chuck between linkage section and the motor protecgulum, there is JI bottom at the pump chuck with the inlet corresponding section, fixedlys connected with bearing in the edge of pump chuck.
Vertical deep cooling canned motorpump of the present utility model, described rear bearing body is provided with Temperature Detector fitting seat and Level meter.
Vertical deep cooling canned motorpump of the present utility model, because outlet is positioned on the rear bearing body of the top, entrance and exit is straight-through up and down to be provided with, gas can rise and discharges from outlet with medium smoothly during pump driving front exhaust.Easy to use, the cost of overhaul is low, and good reliability has reduced operating cost.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
As shown in Figure 1: 3 is the suction side of tape entry 1, and 6 is linkage section, by the bolt clamping a plurality of middle piece housings 5 is arranged between suction side 3 and the linkage section 6, and there is motor protecgulum 9 top of linkage section 6, and motor protecgulum 9 encircles 10 bolts with the stage casing and is connected.Pump chuck 4 is arranged below linkage section 6, and linkage section 6 and motor protecgulum 9 are fastened by bolt clip by pump chuck 4 and stage casing ring 10.1 corresponding JI 2 is processed with and enters the mouth in the bottom of gripping sleeve 4.The edge of gripping sleeve 4 is seated on the bearing 28 and is bolted to connection.
29 is the motor bonnet, between motor bonnet 29 and motor protecgulum 9 motor stator is arranged.Bolt has fore bearing body 7 on motor protecgulum 9, and bolt has rear bearing body 16 above motor bonnet 29.Fore bearing body 7 and rear bearing body 16 upper supports have the rotating shaft 23 that is positioned at the central position.Rotating shaft 23 bottoms are equipped with a plurality of impellers 25 that are arranged in piece housing 5, outside each impeller 25 stator 26 are arranged, and on stator 26 peripheries leadout hole 27 are arranged.Be processed with first flow orifice 8 on fore bearing body 7, at the inboard motor cavity of resorptions 11 that form of motor protecgulum 9, motor cavity of resorption 11 is by first flow orifice 8, the not leadout hole on the stator in the level impeller outside and the intracavity inter-connection of level impeller not.
In rotating shaft 23, rotor is housed, forms rotor housing gap 21 between rotor and the motor stator.At the motor bonnet 29 inboard motor epicoeles 20 that form.Be processed with second flow orifice 18 on rear bearing body 16, motor cavity of resorption 11 is connected with outlet 15 by rotor housing gap 21, motor epicoele 20, second flow orifice 18.
Be processed with center hole 22 in rotating shaft 23 centers, in rotating shaft 23, be positioned at motor cavity of resorption 11 places and be processed with radially the 4th flow orifice 24, in rotating shaft 23, be positioned at motor epicoele 20 places and be processed with radially the 3rd flow orifice 19, motor cavity of resorption 11 also is connected by the 4th flow orifice 24, center hole 22, the 3rd flow orifice 19, motor epicoele 20, second flow orifice 18 between 5 with outlet, the upper end screw thread of rotating shaft 23 is connected with the end cap 30 of band tap hole 31, and outlet 5 also is connected with center hole 22 by tap hole 31.
The Temperature Detector fitting seat 14 that has been threaded on rear bearing body 16 is used to install the temperature detection part, is convenient to understand and control the temperature of the medium in service and the pump housing.Level meter 17 is installed on rear bearing body 16, is used to understand matter Jie's liquid level of pump housing inboard, as detecting liquid level when not enough, need in time pour into medium, during start to guarantee safe starting.
12 is the terminal box that is connected with electric machine casing, is connected by terminal box neck 13 between terminal box 12 and the electric machine casing, in order to make the pump housing outside thermal insulation layer can easily be set, and can suitably increase the length of terminal box neck 13.
Claims (4)
1. a vertical deep cooling canned motorpump includes the suction side (3) of inlet (1), a plurality of middle piece housing (5), linkage section (6), motor protecgulum (9), motor bonnet (29), the rear bearing body (16) that is connected with suction side (3); Motor protecgulum (9) is connected to fore bearing body (7), on fore bearing body (7) and rear bearing body (16), the rotating shaft (23) that is positioned at the center is housed, the multistage impeller (25) that is arranged in piece housing (5) is installed in the rotating shaft (23), there is stator (26) in each impeller (25) outside, between motor protecgulum (9) and motor bonnet (29), motor stator is arranged, in rotating shaft (23), rotor is arranged, form rotor housing gap (21) between motor stator and the rotor; It is characterized in that: on rear bearing body (16), be provided with outlet (15), locate the 4th flow orifice (24) that is communicated with center hole (22) in the rotating shaft (23) being positioned at motor cavity of resorption (11) in the rotating shaft (23), the inner chamber of level impeller is not connected with motor cavity of resorption (11), be communicated with by rotor housing gap (21), motor epicoele (20) between outlet (15) and the motor cavity of resorption (11), also by the 4th flow orifice (24) in the rotating shaft (23), center hole (22) connection.
2. vertical deep cooling canned motorpump according to claim 1, it is characterized in that: described being positioned in the rotating shaft (23) that motor epicoele (20) locates has the 3rd flow orifice (19), be provided with second flow orifice (18) on rear bearing body (16), outlet (15) is communicated with center hole (22) by second flow orifice (18), motor epicoele (20), the 3rd flow orifice (19).
3. vertical deep cooling canned motorpump according to claim 1 and 2, it is characterized in that: described suction side (3) with each in the outside of piece housing (5) be covered with pump chuck (4), be fixedly clamped by stage casing ring (10) and pump chuck (4) between linkage section (6) and the motor protecgulum (9), there is JI (2) bottom and inlet (1) corresponding section at pump chuck (4), fixedly connected with bearing (28) in the edge of pump chuck (4).
4. vertical deep cooling canned motorpump according to claim 3 is characterized in that: described rear bearing body (16) is provided with Temperature Detector (14) and Level meter (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201038198U CN201650762U (en) | 2010-01-29 | 2010-01-29 | Vertical type cryogenic canned motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201038198U CN201650762U (en) | 2010-01-29 | 2010-01-29 | Vertical type cryogenic canned motor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650762U true CN201650762U (en) | 2010-11-24 |
Family
ID=43115996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201038198U Expired - Lifetime CN201650762U (en) | 2010-01-29 | 2010-01-29 | Vertical type cryogenic canned motor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650762U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775347A (en) * | 2012-10-22 | 2014-05-07 | 中国核动力研究设计院 | Full-sealed pump having dynamic exhaust function |
| CN106133326A (en) * | 2013-11-28 | 2016-11-16 | 艾希蒂有限公司 | For LNG, lighter hydrocarbons and other non-conductive and low temperature submersible pumps of non-corrosive fluids |
| CN107489609A (en) * | 2017-07-06 | 2017-12-19 | 上海交通大学 | Vertical gap mobilization dynamic characteristic coefficient test device |
-
2010
- 2010-01-29 CN CN2010201038198U patent/CN201650762U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775347A (en) * | 2012-10-22 | 2014-05-07 | 中国核动力研究设计院 | Full-sealed pump having dynamic exhaust function |
| CN103775347B (en) * | 2012-10-22 | 2016-12-07 | 中国核动力研究设计院 | There is the glandless motor pump of dynamic exhaust function |
| CN106133326A (en) * | 2013-11-28 | 2016-11-16 | 艾希蒂有限公司 | For LNG, lighter hydrocarbons and other non-conductive and low temperature submersible pumps of non-corrosive fluids |
| CN107489609A (en) * | 2017-07-06 | 2017-12-19 | 上海交通大学 | Vertical gap mobilization dynamic characteristic coefficient test device |
| CN107489609B (en) * | 2017-07-06 | 2020-01-07 | 上海交通大学 | Vertical gap flow dynamic characteristic coefficient testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |