CN213574665U - Heat preservation formula canned motor pump - Google Patents
Heat preservation formula canned motor pump Download PDFInfo
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- CN213574665U CN213574665U CN202022809222.1U CN202022809222U CN213574665U CN 213574665 U CN213574665 U CN 213574665U CN 202022809222 U CN202022809222 U CN 202022809222U CN 213574665 U CN213574665 U CN 213574665U
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- rotating shaft
- hollow rotating
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Abstract
The utility model relates to a canned motor pump especially relates to a heat preservation formula canned motor pump. The utility model discloses cancel outside circulation pipeline, reduced outside interface quantity, usable motor self calorific capacity keeps warm to working medium simultaneously, and this canned motor has reduced the production degree of difficulty, has practiced thrift the cost, has reduced equipment occupation space. The utility model comprises a motor and a volute fixed at one end of the motor, wherein an impeller is arranged in the volute, the motor comprises a casing and a stator fixed in the casing, and the motor also comprises bearing mechanisms arranged at two ends of the casing; the hollow rotating shaft is rotatably connected with the bearing mechanism; a rotor fixed in the middle of the hollow rotating shaft; the impeller is sleeved at the front end of the hollow rotating shaft; the flow regulating valve is arranged at the front end of the impeller and is hermetically connected with the hollow rotating shaft; the sealing cavity is arranged at one side of the bearing mechanism at the rear end of the hollow rotating shaft; the volute is provided with a channel communicated with the inner cavity of the shell, and the rear end of the hollow rotating shaft is communicated with the sealing cavity.
Description
Technical Field
The utility model relates to a canned motor pump especially relates to a heat preservation formula canned motor pump.
Background
The existing canned motor pump adopts an external circulation and double-layer pipe heat insulation structure, after the double-layer pipe is processed, the double-layer pipe cannot be disassembled and cleaned effectively, the heat exchange effect is influenced after the double-layer pipe is operated for a long time, and equipment failure is caused when the double-layer pipe is serious; in addition, the double-layer pipe cannot effectively detect leakage, cannot be repaired after being damaged, and is low in safety; the double-layer pipe has large welding amount and high welding difficulty, and is inconvenient to produce; auxiliary parts such as a connecting body, an outlet short pipe and the like need to be added, so that the product cost is improved; because the more use that can only connect in parallel of interface, each pipeline resistance is different, causes local heat transfer effect not good, can influence the heat transfer effect and lead to or damage equipment, and interface position precision is difficult to guarantee simultaneously, and the installation operation degree of difficulty is big, can increase energy resource consumption.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome and provide a heat preservation formula canned motor pump, cancel the external circulation pipeline, reduced outside interface quantity, usable motor self calorific capacity keeps warm to working medium simultaneously, and this canned motor pump has reduced the production degree of difficulty, has practiced thrift the cost, has reduced equipment occupation space.
The utility model discloses a heat preservation type canned motor pump, including motor and spiral case fixed on one end of the motor, the spiral case is equipped with impeller, the motor includes casing and stator fixed in the casing, also includes bearing mechanism arranged on both ends of the casing; the hollow rotating shaft is rotatably connected with the bearing mechanism; a rotor fixed in the middle of the hollow rotating shaft; the impeller is sleeved at the front end of the hollow rotating shaft; the flow regulating valve is arranged at the front end of the impeller and is hermetically connected with the hollow rotating shaft; the sealing cavity is arranged at one side of the bearing mechanism at the rear end of the hollow rotating shaft; the volute is provided with a channel communicated with the inner cavity of the shell, and the rear end of the hollow rotating shaft is communicated with the sealing cavity.
The shield pump is generally provided with non-magnetic corrosion-resistant metal sheets on the inner surface of the stator and the outer surface of the rotor, so that a shield layer is formed and is completely isolated from a working medium, and a stator iron core and a rotor iron core are not corroded.
Preferably, the bearing mechanism comprises bearings arranged at two ends of the casing; the shaft sleeves are fixed at two ends of the hollow rotating shaft; the runner is arranged on the shaft sleeve; the shaft sleeve is sleeved with the bearing, a flow channel is arranged on the bearing at the rear end of the hollow rotating shaft, the first end of the flow channel is communicated with the sealing cavity, and the second end of the flow channel is communicated with the inner cavity of the shell.
Preferably, the volute also comprises a pump body jacket fixed on the outer side of the volute; a side wall jacket fixed on the side of the casing; and a rear end jacket fixed to an end of the housing; and guide plates are arranged in the pump body jacket, the side wall jacket and the rear end jacket.
The pump body jacket, the side wall jacket and the rear end jacket can be connected in series for use, and external heat insulation interfaces are reduced.
The working principle and the process are as follows: the impeller drives the working medium to flow at a high speed in the rotating process, negative pressure is generated at the position of the flow regulating valve, meanwhile, part of the thrown working medium enters the inner cavity of the shell through the volute through the channel and then enters the sealing cavity through the gap between the rotor and the stator and the flow channel on the bearing, and under the suction action of the negative pressure, the working medium is conveyed to the front end from the rear end of the hollow rotating shaft and is discharged through the flow regulating valve to form internal circulation.
The utility model has the advantages that: the shielding pump has the advantages that an external circulation pipeline is omitted, the number of external interfaces is reduced, meanwhile, the internal circulation of the working medium is arranged, the heat of the working medium is preserved by utilizing the self heat productivity of the motor, the medium flows in the equipment, the safety is greatly improved, the production difficulty is reduced, the cost is saved, and the occupied space of the equipment is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged view of the portion A in FIG. 1;
in the figure: 1. a volute; 2. an impeller; 3. a housing; 4. a stator; 5. a hollow rotating shaft; 6. a rotor; 7. a baffle; 8. a flow regulating valve; 9. sealing the cavity; 10. a channel; 11. a bearing; 12. a shaft sleeve; 13. a flow channel; 14. a jacket; 15. a sidewall jacket; 16. and a rear end jacket.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and 2, the heat preservation type canned motor pump includes the motor and is fixed in the spiral case 1 of motor one end, be equipped with impeller 2 in the spiral case, the motor includes casing 3 and is fixed in stator 4 in the casing 3, still includes: bearing mechanisms arranged at two ends of the shell 3; a hollow rotating shaft 5 rotatably connected with the bearing mechanism; a rotor 6 fixed in the middle of the hollow rotating shaft 5; the impeller 2 is sleeved at the front end of the hollow rotating shaft 5; the flow regulating valve 8 is arranged at the front end of the impeller 2 and is hermetically connected with the hollow rotating shaft 5; and a sealing cavity 9 arranged at one side of the bearing mechanism at the rear end of the hollow rotating shaft 5; the volute 1 is provided with a channel 10 communicated with the inner cavity of the casing 3, and the rear end of the hollow rotating shaft 5 is communicated with the sealing cavity 9. The bearing mechanism comprises bearings 11 arranged at two ends of the shell 3; shaft sleeves 12 fixed at both ends of the hollow rotating shaft 5; and a flow passage 13 provided on the bearing 11; the shaft sleeve 12 is sleeved with the bearing 11, and a first end of a flow channel 13 positioned on the bearing 11 at the rear end of the hollow rotating shaft 5 is communicated with the sealing cavity 9, and a second end of the flow channel is communicated with the inner cavity of the machine shell 3. The volute also comprises a pump body jacket 14 fixed on the outer side of the volute 1; a side wall jacket 15 fixed to a side of the housing 3; and a rear end jacket 16 fixed to an end of the housing 3; guide plates 17 are arranged in the pump body jacket 14, the side wall jacket 15 and the rear end jacket 16.
The shield pump is generally provided with non-magnetic corrosion-resistant metal sheets on the inner surface of the stator and the outer surface of the rotor, so that a shield layer is formed and is completely isolated from a working medium, and a stator iron core and a rotor iron core are not corroded. The pump body jacket, the side wall jacket and the rear end jacket can be connected in series for use, and external heat insulation interfaces are reduced.
The utility model discloses a use as follows: the impeller drives the working medium to flow at a high speed in the rotating process, negative pressure is generated at the position of the flow regulating valve, meanwhile, part of the thrown working medium enters the inner cavity of the shell through the volute through the channel and then enters the sealing cavity through the gap between the rotor and the stator and the flow channel on the shaft sleeve, and under the suction action of the negative pressure, the working medium is conveyed to the front end from the rear end of the hollow rotating shaft and is discharged through the flow regulating valve to form internal circulation.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (3)
1. The utility model provides a heat preservation formula canned motor pump, includes motor and spiral case (1) that is fixed in motor one end, be equipped with impeller (2) in the spiral case, the motor includes casing (3) and is fixed in stator (4) in casing (3), and its characterized in that still includes:
bearing mechanisms arranged at two ends of the shell (3);
a hollow rotating shaft (5) rotatably connected with the bearing mechanism;
a rotor (6) fixed in the middle of the hollow rotating shaft (5);
the impeller (2) is sleeved at the front end of the hollow rotating shaft (5);
the flow regulating valve (8) is arranged at the front end of the impeller (2) and is hermetically connected with the hollow rotating shaft (5);
and a sealing cavity (9) arranged at one side of the bearing mechanism at the rear end of the hollow rotating shaft (5);
the volute (1) is provided with a channel (10) communicated with the inner cavity of the casing (3), and the rear end of the hollow rotating shaft (5) is communicated with the sealing cavity (9).
2. The insulated canned motor pump of claim 1, wherein: the bearing mechanism comprises a bearing seat, a bearing seat and a bearing seat,
bearings (11) arranged at two ends of the shell (3);
shaft sleeves (12) fixed at two ends of the hollow rotating shaft (5);
and a flow passage (13) provided on the shaft sleeve (12);
the shaft sleeve (12) is sleeved with the bearing (11), a flow channel (13) is arranged on the bearing (11) at the rear end of the hollow rotating shaft (5), the first end of the flow channel is communicated with the sealing cavity (9), and the second end of the flow channel is communicated with the inner cavity of the shell (3).
3. The insulated canned motor pump of claim 2, further comprising:
a pump body jacket (14) fixed on the outer side of the volute (1);
a side wall jacket (15) fixed on the side of the machine shell (3);
and a rear end jacket (16) fixed to an end of the housing (3);
guide plates (7) are arranged in the pump body jacket (14), the side wall jacket (15) and the rear end jacket (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022809222.1U CN213574665U (en) | 2020-11-27 | 2020-11-27 | Heat preservation formula canned motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022809222.1U CN213574665U (en) | 2020-11-27 | 2020-11-27 | Heat preservation formula canned motor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213574665U true CN213574665U (en) | 2021-06-29 |
Family
ID=76544157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022809222.1U Active CN213574665U (en) | 2020-11-27 | 2020-11-27 | Heat preservation formula canned motor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213574665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199528A (en) * | 2022-06-23 | 2022-10-18 | 昆山奥兰克泵业制造有限公司 | Integrated leakage-free self-balancing vortex pump |
-
2020
- 2020-11-27 CN CN202022809222.1U patent/CN213574665U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199528A (en) * | 2022-06-23 | 2022-10-18 | 昆山奥兰克泵业制造有限公司 | Integrated leakage-free self-balancing vortex pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 255200 village, Baita Town, Boshan District, Shandong, Zibo Patentee after: ZIBO LUMING PUMP INDUSTRY Co.,Ltd. Address before: 255200 Wudi village, Baita Town, Zichuan District, Zibo City, Shandong Province Patentee before: ZIBO LUMING PUMP INDUSTRY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |