CN203951304U - A kind of boiler pump motor with self sealss conductive contact - Google Patents
A kind of boiler pump motor with self sealss conductive contact Download PDFInfo
- Publication number
- CN203951304U CN203951304U CN201420346966.6U CN201420346966U CN203951304U CN 203951304 U CN203951304 U CN 203951304U CN 201420346966 U CN201420346966 U CN 201420346966U CN 203951304 U CN203951304 U CN 203951304U
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- China
- Prior art keywords
- sealing ring
- inner chamber
- steel bushing
- pump motor
- pipe body
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- 241000283216 Phocidae Species 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007914 intraventricular administration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of boiler pump motor with self sealss conductive contact, comprise the housing of motor, in this housing, there is stator, rotor and winding, and this winding electric is connected with power line; The described boiler pump motor with self sealss conductive contact also comprises: conductive seat, steel bushing, nut, pinout connector, and the first sealing ring, the second sealing ring, the 3rd sealing ring.Between the first interior step of this boiler pump motor with self sealss conductive contact in steel bushing and the conical pipe of pinout connector, the 3rd sealing ring is set, takes full advantage of interior pressure in motor cavity and compress the 3rd sealing ring and reached good sealing effectiveness.Meanwhile, the introducing of the first sealing ring and the second sealing ring makes to have the sealing ring that two kinds of differences are subject to force direction inside and outside conductive seat, makes sealing function be difficult to lose efficacy simultaneously.
Description
Technical field
The present invention relates to thermal power generating technology field, especially relate to a kind of boiler pump motor with self sealss conductive contact.
Background technology
Stove water pump (being boiler water circulating pump) is mounted in large turbo-type generator group boiler main pipe-line system for delivery of the visual plant of HTHP stove water, and boiler pump motor is the drive motors of this stove water pump.The temperature of large turbo-type generator group boiler water is up to more than 300 ℃, more than operating pressure reaches 20MPa.The working medium of carrying due to stove water pump is the stove water of HTHP, and the coupling part between stove water pump pump case and boiler pump motor is difficult to effectively seal, therefore the connecting portion between stove water pump pump case both domestic and external and boiler pump motor all adopts the structure without stuffing box, makes the two connect into a seal chamber interconnecting.
The winding of boiler pump motor is directly immersed in cooling water, and the temperature of cooling water will remain on below 80 ℃.Cooling water adopts closed cycle mode cooling by being contained in the heat exchanger of motor side, to keep the temperature of cooling water.Boiler pump motor adopts high interior wet stator motor of pressing, and the lead-out wire of the stator winding of boiler pump motor is drawn out to outside in motor casing, is one of key technology of boiler pump motor.Pinout connector is that conductive seal joint must have beyond good electrical property, also must have reliable sealing property.At present, the pinout connector of boiler pump motor stator winding both domestic and external is all to rely on outside clamp nut to screw the effect that jam-packed seal reaches sealing.This sealing means exists certain hidden danger in reliability.That is, once that clamp nut does not reach required thrust or motor cavity intraventricular pressure is too high, will there is pressure furnace water from conductive seal joint to external leakage, cause the stopping accident of boiler pump motor damage.
Summary of the invention
The object of this invention is to provide a kind of boiler pump motor with self sealss conductive contact, it has the good feature of sealing.
The technical solution adopted in the present invention is: have the boiler pump motor of self sealss conductive contact, comprise the housing of motor, have stator, rotor and winding in this housing, and this winding electric is connected with power line; The described boiler pump motor with self sealss conductive contact also comprises:
---conductive seat, this conductive seat is cannula-like, and it is fixed on this housing, and this conductive seat has upper and lower the first penetrating inner chamber, and the external upper of this conductive seat is provided with external screw thread;
---steel bushing, this steel bushing is cannula-like, being inserted in this first inner chamber of its interference fits or interference fit, and this steel bushing has upper and lower the second penetrating inner chamber, the top of this second inner chamber is provided with the first interior step extending internally, and the outer surface of upper of this steel bushing is provided with outward extending outer step;
---nut, the internal thread that the bottom of this nut intracavity has and this external screw thread matches, and the inner chamber top of this nut has the second interior step extending internally;
---pinout connector, this pinout connector has upper and lower the 3rd penetrating inner chamber, and this pinout connector comprises the first pipe body of being positioned at bottom and superposed the second pipe body and the conical pipe that is connected this first pipe body, the second pipe body, and the external diameter of this second pipe body is greater than the external diameter of this first pipe body;
Meanwhile,
After this nut is spun on this conductive seat, the lower surface of this outer step is pressed on the upper surface of this conductive seat, and this second interior step is pressed on the upper surface of this steel bushing, and the inner side lower edge of this first interior step contacts the outer surface of this conical pipe;
And,
Between the outer surface of this steel bushing and this first inner chamber, be provided with the first sealing ring, between this second inner chamber and the outer surface of this first pipe body, be provided with the second sealing ring, between this first interior step and the outer surface of this conical pipe, be provided with the 3rd sealing ring;
And,
This power line passing in the 3rd inner chamber from bottom to top.
The advantage that the present invention has is: sealing is better.With respect to traditional boiler pump motor, rely on the lead-out wire seal nipple of outside clamp nut press seal, between the first interior step of the boiler pump motor with self sealss conductive contact of the present invention in steel bushing and the conical pipe of pinout connector, the 3rd sealing ring is set, takes full advantage of interior pressure in motor cavity and compress the 3rd sealing ring and reached good sealing effectiveness.Meanwhile, the introducing of the first sealing ring and the second sealing ring makes to have the sealing ring that two kinds of differences are subject to force direction inside and outside conductive seat, makes sealing function be difficult to lose efficacy simultaneously.That is,, even if one of them sealing ring lost efficacy, other sealing ring can continue to play a role, and guarantees to block seepage current, has realized reliably insulation and the sealing function of this boiler pump motor.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is that the master of embodiments of the invention looks cutaway view;
Fig. 2 is that the master of conductive seat of the present invention looks cutaway view;
Fig. 3 is that the master of steel bushing of the present invention looks cutaway view;
Fig. 4 is that the master of nut of the present invention looks cutaway view;
Fig. 5 is that the master of pinout connector of the present invention looks cutaway view.
In figure: 10, housing; 20, conductive seat, the 21, first inner chamber, 22, external screw thread; 30, steel bushing, the 31, second inner chamber, the 32, first interior step, 33, outer step; 40, nut, 41, internal thread, the 42, second interior step; 50, pinout connector, the 51, the 3rd inner chamber, the 52, first pipe body, 53, conical pipe, the 54, second pipe body; 60, power line; 71, the first sealing ring, the 72, second sealing ring, the 73, the 3rd sealing ring.
Embodiment
Embodiment, is shown in shown in Fig. 1 to Fig. 5: have the boiler pump motor of self sealss conductive contact, comprise the housing 10 of motor.In this housing 10, there is stator (not shown on figure), rotor (not shown on figure) and winding (not shown on figure), and this winding electric is connected with power line 60.Further say, this boiler pump motor with self sealss conductive contact also comprises: the parts such as conductive seat 20, steel bushing 30, nut 40, pinout connector 50.Wherein:
This conductive seat 20 is cannula-like, and it is fixed on this housing 10, and this conductive seat 20 has upper and lower the first penetrating inner chamber 21, and the external upper of this conductive seat 20 is provided with external screw thread 22.Obviously, this first inner chamber 21 connects inside and outside this housing 10.
This steel bushing 30 is cannula-like, being inserted in this first inner chamber 21 of its interference fits or interference fit.And this steel bushing 30 has upper and lower the second penetrating inner chamber 31, the top of this second inner chamber 31 is provided with the first interior step 32 extending internally, and the outer surface of upper of this steel bushing 30 is provided with outward extending outer step 33.
The internal thread 41 that the bottom of these nut 40 inner chambers has and this external screw thread 22 matches, and the inner chamber top of this nut 40 has the second interior step 42 extending internally.That is, this external screw thread 22 and this internal thread 41 are spirally connected and make this nut 40 be screwed onto this conductive seat 20 tops.
This pinout connector 50 has upper and lower the 3rd penetrating inner chamber 51.This pinout connector 50 comprises the first pipe body 52 of being positioned at bottom and superposed the second pipe body 54 and the conical pipe 53 that is connected this first pipe body 52, the second pipe body 54, and the external diameter of this second pipe body 54 is greater than the external diameter of this first pipe body 52, the internal diameter of this first pipe body 52, conical pipe 53, the second pipe body 54 can be identical.
Simultaneously, after this nut 40 is spun on this conductive seat 20, the lower surface of this outer step 33 is pressed on the upper surface of this conductive seat 20, and this second interior step 42 is pressed on the upper surface of this steel bushing 30, and the inner side lower edge of this first interior step 32 contacts the outer surface of this conical pipe 53.In other words, after this nut 40 screws, this steel bushing 30 is pressed in this conductive seat 20 and is located.
And, between the outer surface of this steel bushing 30 and this first inner chamber 21, be provided with the first sealing ring 71 at least together, between the outer surface of this second inner chamber 31 and this first pipe body 52, be provided with the second sealing ring 72 at least together, between this first interior step 32 and the outer surface of this conical pipe 53, be provided with the 3rd sealing ring 73.
And, this power line 60 passing in the 3rd inner chamber 51 from bottom to top.That is, this power line 60 passing in this housing 10 from bottom to top.
Like this, the 3rd sealing ring 73 takes full advantage of the interior pressure in motor cavity and has realized good sealing effectiveness.Meanwhile, the stressed opposite direction of this first sealing ring 71 and this second sealing ring 72 is difficult to lose efficacy simultaneously, has realized reliably insulation and the sealing function of this boiler pump motor.
Boiler pump motor is widely used at present, and other structure and principle are same as the prior art, repeat no more here.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. a boiler pump motor with self sealss conductive contact, comprises the housing (10) of motor, and this housing has stator, rotor and winding in (10), and this winding electric is connected with power line (60); It is characterized in that: described in there is self sealss conductive contact boiler pump motor also comprise:
---conductive seat (20), this conductive seat (20) is cannula-like, and it is upper that it is fixed on this housing (10), and this conductive seat (20) has upper and lower penetrating the first inner chamber (21), and the external upper of this conductive seat (20) is provided with external screw thread (22);
---steel bushing (30), this steel bushing (30) is cannula-like, being inserted in this first inner chamber (21) of its interference fits or interference fit, and this steel bushing (30) has upper and lower penetrating the second inner chamber (31), the top of this second inner chamber (31) is provided with the first interior step (32) extending internally, and the outer surface of upper of this steel bushing (30) is provided with outward extending outer step (33);
---nut (40), the internal thread (41) that bottom has and this external screw thread (22) matches of this nut (40) inner chamber, and the inner chamber top of this nut (40) has the second interior step (42) extending internally;
---pinout connector (50), this pinout connector (50) has upper and lower the 3rd penetrating inner chamber (51), and this pinout connector (50) comprises the first pipe body (52) of being positioned at bottom and superposed the second pipe body (54) and the conical pipe (53) that is connected this first pipe body (52), the second pipe body (54), and the external diameter of this second pipe body (54) is greater than the external diameter of this first pipe body (52);
Meanwhile,
After this nut (40) is spun on this conductive seat (20), the lower surface of this outer step (33) is pressed on the upper surface of this conductive seat (20), this second interior step (42) is pressed on the upper surface of this steel bushing (30), and the inner side lower edge of this first interior step (32) contacts the outer surface of this conical pipe (53);
And,
Between the outer surface of this steel bushing (30) and this first inner chamber (21), be provided with the first sealing ring (71), between this second inner chamber (31) and the outer surface of this first pipe body (52), be provided with the second sealing ring (72), between this first interior step (32) and the outer surface of this conical pipe (53), be provided with the 3rd sealing ring (73);
And,
This power line (60) passing in the 3rd inner chamber (51) from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346966.6U CN203951304U (en) | 2014-06-27 | 2014-06-27 | A kind of boiler pump motor with self sealss conductive contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346966.6U CN203951304U (en) | 2014-06-27 | 2014-06-27 | A kind of boiler pump motor with self sealss conductive contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203951304U true CN203951304U (en) | 2014-11-19 |
Family
ID=51893320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420346966.6U Expired - Fee Related CN203951304U (en) | 2014-06-27 | 2014-06-27 | A kind of boiler pump motor with self sealss conductive contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203951304U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767048A (en) * | 2015-03-31 | 2015-07-08 | 合肥皖化电机技术开发有限责任公司 | Boiler water pump conductive contact |
| CN109209909A (en) * | 2018-07-27 | 2019-01-15 | 合肥皖化电机技术开发有限责任公司 | A kind of boiler pump motor chamber decontamination apparatus |
| CN111412145A (en) * | 2019-12-18 | 2020-07-14 | 合肥皖化电机技术开发有限责任公司 | Coal-to-liquid circulating pump |
-
2014
- 2014-06-27 CN CN201420346966.6U patent/CN203951304U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767048A (en) * | 2015-03-31 | 2015-07-08 | 合肥皖化电机技术开发有限责任公司 | Boiler water pump conductive contact |
| CN109209909A (en) * | 2018-07-27 | 2019-01-15 | 合肥皖化电机技术开发有限责任公司 | A kind of boiler pump motor chamber decontamination apparatus |
| CN111412145A (en) * | 2019-12-18 | 2020-07-14 | 合肥皖化电机技术开发有限责任公司 | Coal-to-liquid circulating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 |