CN113489211A - Furnace water pump motor heat shield - Google Patents
Furnace water pump motor heat shield Download PDFInfo
- Publication number
- CN113489211A CN113489211A CN202110747636.2A CN202110747636A CN113489211A CN 113489211 A CN113489211 A CN 113489211A CN 202110747636 A CN202110747636 A CN 202110747636A CN 113489211 A CN113489211 A CN 113489211A
- Authority
- CN
- China
- Prior art keywords
- heat shield
- heat
- motor
- welded
- water pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000000498 cooling water Substances 0.000 claims abstract description 12
- 230000017525 heat dissipation Effects 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/02—Casings or enclosures characterised by the material thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention designs a furnace water pump motor heat shield, wherein an upper part (1) of the heat shield is welded and fixed with a lower part (2) of the heat shield, 12 heat insulation rib plates (3) are welded at intervals between the upper part (1) of the heat shield and the lower part (2) of the heat shield, the lower part (2) of the heat shield is welded and fixed with a heat shield cover (4), a plurality of circles of heat dissipation pipelines (11) are arranged in the circumferential direction of the heat shield cover (4), and a low-pressure cooling water inlet pipe (5) and a water outlet pipe (6) are arranged on the outer circle of the lower part (2) of the heat shield. The invention can effectively meet the temperature of the winding when the boiler water pump motor normally operates, effectively insulate heat and avoid the influence of high-temperature boiler water on the operation of the motor. The heat shield is applicable to heat insulation of the motor pump shell and the motor of the boiler water pump for the power station with good outdoor and indoor ventilation.
Description
The technical field is as follows:
the invention relates to a heat shield of a furnace water pump motor.
Background art:
the forced boiler circulating pump is classified into a centrifugal single-stage type pump, a boiler water pump motor and a pump are integrated by a vertical main shaft, and all internal parts are contained in a pressure cylinder mainly consisting of a pump shell, a heat shield and a motor shell (the pump shell is arranged at the uppermost part). The furnace water pump motor, the heat shield and the pump shell form static sealing connection, the pump body and the motor are divided into two 22MPa isobaric cavities, the heat shield bears the same pressure, the temperature of high-temperature furnace water in the pump shell is about 300 ℃, the operating temperature of the motor is below 60 ℃, high-temperature furnace water in the pump shell and water in the furnace water pump motor cavity are not exchanged, namely, only heat conduction is achieved but heat circulation is not achieved, wherein the heat shield is a key component on the furnace water pump and directly influences whether the motor can normally operate, compared with the traditional casting heat shield, an internal water through hole is difficult to cast, a low-pressure cooling water circulation structure cannot be achieved, the heat insulation effect is poor, meanwhile, a casting process is complex, air holes and slag holes are easily formed in the interior, leakage is easy to occur in long-term operation under high water pressure, and once the high-temperature furnace water enters the motor, the motor winding can not operate instantly due to overheating. The middle part of the heat shield is cooled through air convection, and meanwhile, the lower part of the heat shield is added with low-pressure cooling water for circulating cooling to take away a part of heat, so that the motor winding can safely run at the temperature required by design for a long time, and the failure rate of the motor is reduced.
The invention content is as follows:
the invention aims to provide a heat shield structure of a boiler water pump motor, which can effectively meet the temperature of a winding when the boiler water pump motor normally operates, effectively insulate heat and avoid the influence of high-temperature boiler water on the operation of the motor.
The invention adopts the following technical scheme: the utility model provides a stove water pump motor heat shield, heat shield upper portion (1) and heat shield lower part (2) welded fastening are in the same place, interval welding heat insulating gusset (3) between heat shield upper portion (1) and heat shield lower part (2), heat shield lower part (2) and heat shield lid (4) welded fastening are in the same place, heat shield lid (4) ring circle has many rings of heat dissipation pipeline (11), heat shield lower part (2) excircle has low pressure cooling water inlet tube (5) and outlet pipe (6), low pressure cooling water inlet tube (5) are connected with heat dissipation pipeline (11) one end, outlet pipe (6) are connected with heat dissipation pipeline (11) other end, heat shield lower part (2) have welded flange (7), flange (7) and motor (8) fixed connection, motor (8) and pump case (9) adopt main bolt nut (10) to be connected.
The working principle of the invention is as follows:
during the operation of the boiler water pump, the heat shield separates the motor (8) from high-temperature boiler water in the pump shell (9) so as to prevent the windings in the motor from being damaged due to high-temperature overheating of boiler water. Boundary area passes through air convection cooling in the middle of heat shield upper portion (1) and heat shield lower part (2), and heat shield lower part (2) have increased heat dissipation pipeline (11) low pressure cooling water circulation cooling simultaneously, take away partly heat through cooling heat shield, reach the cooling permission value, make motor winding safe operation under the design requirement temperature for a long time, reduce the motor fault rate.
The invention has the technical effects that:
the heat shield is applicable to heat insulation of the motor pump shell and the motor of the boiler water pump for the power station with good outdoor and indoor ventilation. The upper part and the lower part of the heat shield are welded in a mode, 12 heat insulation rib plates are welded between the upper part and the lower part of the heat shield to increase the strength of the heat shield, and the heat shield also plays a role in positioning and supporting, so that the phenomenon that the main welding seam of the upper part and the lower part of the heat shield is stretched to break due to overlarge fixed connection force of a pump shell and a motor is prevented. The heat shield lid ring has many rings of heat dissipation pipelines to connect low pressure cooling water inlet tube and outlet pipe, and low pressure cooling water circulation flows, can take away the heat on the heat shield, increases the thermal-insulated effect of heat shield, can effectively satisfy the temperature of the winding when stove water pump motor normally operates, has avoided the influence of high temperature boiler water to the motor operation, has reached good thermal-insulated effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of a heat shield configuration of the present invention.
FIG. 3 is a view of a heat sink line A-A.
Detailed Description
As shown in figure 1, a furnace water pump motor heat shield, an upper heat shield part 1 and a lower heat shield part 2 are welded and fixed together, as shown in figure 2, 12 heat insulation rib plates 3 are welded at intervals between the upper heat shield part 1 and the lower heat shield part 2, the lower heat shield part 2 and a heat shield cover 4 are welded and fixed together, a plurality of circles of heat dissipation pipelines 11 are arranged around the heat shield cover 4, as shown in figure 3, a low-pressure cooling water inlet pipe 5 and a water outlet pipe 6 are arranged on the outer circle of the lower heat shield part 2, the low-pressure cooling water inlet pipe 5 is connected with one end of each heat dissipation pipeline 11, the water outlet pipe 6 is connected with the other end of each heat dissipation pipeline 11, as shown in figure 1, a convex flange 7 is welded on the lower heat shield part 2, the convex flange 7 is fixedly connected with a motor 8, and the motor 8 is connected with a pump shell 9 through a main bolt nut 10.
Claims (1)
1. The utility model provides a stove water pump motor heat shield, characterized by: the heat shield comprises a heat shield upper portion (1) and a heat shield lower portion (2) which are welded and fixed together, 12 heat insulation rib plates (3) are welded at intervals between the heat shield upper portion (1) and the heat shield lower portion (2), the heat shield lower portion (2) and a heat shield cover (4) are welded and fixed together, a multi-ring heat dissipation pipeline (11) is arranged in the circumferential direction of the heat shield cover (4), a low-pressure cooling water inlet pipe (5) and a water outlet pipe (6) are arranged on the outer circle of the heat shield lower portion (2), the low-pressure cooling water inlet pipe (5) is connected with one end of the heat dissipation pipeline (11), the water outlet pipe (6) is connected with the other end of the heat dissipation pipeline (11), a convex flange (7) is welded on the heat shield lower portion (2), the convex flange (7) is fixedly connected with a motor (8), and the motor (8) is connected with a pump shell (9) through a main bolt nut (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747636.2A CN113489211A (en) | 2021-07-02 | 2021-07-02 | Furnace water pump motor heat shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747636.2A CN113489211A (en) | 2021-07-02 | 2021-07-02 | Furnace water pump motor heat shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113489211A true CN113489211A (en) | 2021-10-08 |
Family
ID=77940090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110747636.2A Pending CN113489211A (en) | 2021-07-02 | 2021-07-02 | Furnace water pump motor heat shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113489211A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2550948Y (en) * | 2002-07-05 | 2003-05-14 | 合肥皖化电机技术开发有限责任公司 | Furnace water pump motor for changing high voltage into low voltage |
| CN203227818U (en) * | 2012-12-05 | 2013-10-09 | 江门富祥电子材料有限公司 | Device for magnesium reduction and deoxidization on tantalum powder with cooler |
| CN203951321U (en) * | 2014-06-12 | 2014-11-19 | 合肥皖化电机技术开发有限责任公司 | There is the boiler pump motor of two heat shielding structures |
| CN206891227U (en) * | 2017-04-25 | 2018-01-16 | 合肥皖化电泵有限公司 | A kind of boiler water circulating pump efficient heat exchanger |
| CN108980112A (en) * | 2018-07-27 | 2018-12-11 | 合肥皖化电机技术开发有限责任公司 | A kind of air cooling equipment for boiler pump motor |
| CN212360285U (en) * | 2019-12-21 | 2021-01-15 | 合肥皖化电机技术开发有限责任公司 | Non-leakage furnace water circulating pump |
-
2021
- 2021-07-02 CN CN202110747636.2A patent/CN113489211A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2550948Y (en) * | 2002-07-05 | 2003-05-14 | 合肥皖化电机技术开发有限责任公司 | Furnace water pump motor for changing high voltage into low voltage |
| CN203227818U (en) * | 2012-12-05 | 2013-10-09 | 江门富祥电子材料有限公司 | Device for magnesium reduction and deoxidization on tantalum powder with cooler |
| CN203951321U (en) * | 2014-06-12 | 2014-11-19 | 合肥皖化电机技术开发有限责任公司 | There is the boiler pump motor of two heat shielding structures |
| CN206891227U (en) * | 2017-04-25 | 2018-01-16 | 合肥皖化电泵有限公司 | A kind of boiler water circulating pump efficient heat exchanger |
| CN108980112A (en) * | 2018-07-27 | 2018-12-11 | 合肥皖化电机技术开发有限责任公司 | A kind of air cooling equipment for boiler pump motor |
| CN212360285U (en) * | 2019-12-21 | 2021-01-15 | 合肥皖化电机技术开发有限责任公司 | Non-leakage furnace water circulating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211008 |