CN109538493B - Negative pressure sealing water supply device with built-in impeller - Google Patents
Negative pressure sealing water supply device with built-in impeller Download PDFInfo
- Publication number
- CN109538493B CN109538493B CN201811597435.3A CN201811597435A CN109538493B CN 109538493 B CN109538493 B CN 109538493B CN 201811597435 A CN201811597435 A CN 201811597435A CN 109538493 B CN109538493 B CN 109538493B
- Authority
- CN
- China
- Prior art keywords
- water supply
- fixed
- water
- rotary
- central
- 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.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 239000000945 filler Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 abstract description 12
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 description 10
- 238000005299 abrasion Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- 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
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/28—Cooling of commutators, slip-rings or brushes e.g. by ventilating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses a negative pressure sealing water supply device with built-in impellers, wherein one or more groups of impellers consisting of 3 water absorbing blades are fixed on a central disc in a rotary water absorbing pipe, the central disc is fixed in the rotary water absorbing pipe by 4 central disc brackets, and the rotary water absorbing pipe with an O-shaped sealing ring is fixed on a main shaft through a rotary flange and a water supply connecting flange by using a fastening bolt. The fixed water supply cavity with the packing sealing ring and the upper and lower fixing plates is sleeved on the rotary water suction pipe in a concentric mode through the water supply cavity holes and then is fixed on the machine base. The water supply flange cover with the water supply hose, the O-shaped sealing ring, the regulating valve and the water supply branch pipe is fixed on the fixing flange for fixing the water supply cavity through the fixing flange by the closing bolt. The invention can be widely used in the field and other related fields.
Description
Technical field:
The invention is mainly used for a water-cooled generator and a device for changing the water supply end of cooling water of a rotor coil of a camera.
The background technology is as follows:
at present, all water-cooled generators and water supply devices for changing the cooling water of a rotor coil of a camera, which are adopted for improving the quality of a power grid, adopt packing, and the packing is a simple water supply sealing structure which realizes the sealing between a rotating part and a fixed part by mechanical pressure, and a rotating part sleeve and a fixed part sleeve can cause great packing abrasion, so that the packing is low in price and simple in structure, but maintenance personnel are required to frequently adjust the mechanical pressure to realize abrasion compensation due to overlarge abrasion. The water supply pressure of the cooling water is generally about 6 kg, if the mechanical pressure is not regularly checked and adjusted in time, a large amount of cooling water is leaked, the cooling effect on the rotor coil of the generator and the camera is greatly reduced, the working life of an insulating layer is shortened due to the fact that the rotor coil is heated up due to the leakage of the cooling water, even the accident is stopped due to overhigh temperature, huge economic loss is brought to a using enterprise, and especially, the automatic strength is required to be improved at present, the generator and the camera are required to be on duty or unattended, so that the temperature of the rotor coil of the generator and the camera is required to be ensured to run in a safe temperature range, and therefore, a water supply device which can stably work for a long time and does not need to regularly adjust the mechanical pressure to ensure the cooling water supply is urgently needed in the field.
The invention comprises the following steps:
The invention aims to provide a technical scheme for meeting the urgent need of water supply devices in the field, and perfectly solving the technical problem in the field, and is mainly technically characterized by comprising a sealing compression ring, a packing sealing ring, a handle bolt, a water supply hose, an O-shaped sealing ring, a water supply branch pipe, an upper fixing plate with a horizontal waist-shaped hole, a lower fixing plate with a base and a vertical waist-shaped hole, wherein a central plate with a central hole is fixed on the central position of one side of a main shaft inside the rotary water suction pipe through 4 central plate brackets, 4 water through holes are formed between the inner diameter of the rotary water suction pipe and the 4 central plate brackets and the central plate, an impeller shaft fixed with 3 water suction blades in one group or more groups is fixed on the center of the rotary water suction pipe through a central screw nut on the impeller fixing shaft and penetrates through the central hole on the central plate, the rotary water suction pipe is fixed on the main shaft with the handle bolt on the water supply connecting flange through the rotary flange, a fixed water supply cavity with the fixed water supply flange is sleeved outside the rotary water suction pipe in a concentric manner through the water supply cavity hole, and the water supply cavity is fixed on the water supply flange through the upper fixing plate with the waist-shaped sealing ring and the sealing ring, and the lower fixing plate with the water supply flange is fixed on the water supply flange through the central screw cap and the water supply flange. The lower fixing plate with vertical waist-shaped holes and the upper fixing plate with horizontal waist-shaped holes are mainly used for adjusting concentricity of a water supply cavity hole and a rotary water suction pipe on a fixed water supply cavity so that a filler sealing ring is not eccentric, as the rotating speed of a water-cooled generator or a camera is 3000 rpm, the water suction pressure and flow generated by an impeller formed by blades in the device are fixed, the water suction pressure and flow are adjusted by a regulating valve, so that the water suction pressure and flow are slightly smaller than those generated by the impeller, a certain negative pressure is always generated when the generator or the camera is operated in the fixed water supply cavity, no cooling water is leaked outwards at the filler sealing ring, the water consumption required by cooling a rotor coil of the generator or the camera is met, and when a group of impellers form a pressure which is not larger than about 6 kg of the water supply pressure, a plurality of groups of blades can be added to increase the water suction negative pressure, and the negative pressure in the fixed water supply cavity is ensured.
The technical effects achieved by the technical scheme provided by the invention are realized as follows: when 3 blades fixed in the rotary water suction pipe through the impeller shaft run along with the generator or the camera to reach the same rotating speed as the generator or the camera, namely 3000 revolutions per minute, water suction negative pressure and water supply flow are formed for the supplied cooling water, the cooling water enters the generator or the camera rotor coil through the water passing hole and the main shaft inner cavity to be cooled, the formed water suction negative pressure is necessarily larger than the water supply pressure by 6 kg, the cooling water cannot leak outwards from the filler sealing ring, and meanwhile, the water pressure can be adjusted by the adjusting valve to meet the technical requirement of fixing the water supply cavity negative pressure.
The technical scheme of the invention has simple structure, skillfully places one or more groups of blades in the rotary water suction pipe to rotate together with the main shaft of the generator or the camera, forms water suction negative pressure, avoids maintenance personnel from regular maintenance and adjustment, and provides reliable technical guarantee for unattended operation or less attended operation of the generator or the camera. Compared with the prior packing mechanical pressure technology in the field, the scheme has novelty, creative performance and practicability, and is necessarily widely applied to the field and related fields.
Description of the drawings:
FIG. 1 front view of a negative pressure sealed water supply device with built-in impeller
FIG. 2A-a view of a negative pressure sealed water supply device with built-in impeller
FIG. 3 is a view B-B of a negative pressure sealed water supply device with an internal impeller
FIG. 4 is a view of a built-in impeller negative pressure seal water supply device C-C
FIG. 5D-D view of a negative pressure sealed water supply device with built-in impellers
Wherein:
1. water supply hose 2, regulating valve 3, water supply branch pipe
4. Closing bolt 5, fixing flange 6 and O-shaped sealing ring
7. Fixed water supply cavity 8, water supply hole 9 and rotary water suction pipe
10. Water suction blade 11, water supply cavity hole 12 and impeller shaft
13. Rotary flange 14, water supply connecting flange 15, main shaft
16. Center hole 17, center nut 18, center screw
19. Center plate 20, water passing hole 21, impeller fixing shaft
22. Sealing compression ring 23, packing sealing ring 24 and upper fixing plate
25. Lower fixing plate 26, adjusting bolt 27 and stand
28. Base 29, vertical waist-shaped hole 30, horizontal waist-shaped hole
31. Water supply flange cover 32 and center plate support
The specific embodiment is as follows:
The impeller shaft 12 with 3 suction blades 10 is fixed to the central disk 19 by means of a central screw cap 17 through the impeller fixing shaft 21 and the central screw 18 and through the central hole 16 in the central disk 19, and the central disk 19 is fixed to the end of the rotary suction pipe 9 with the rotary flange 13 by means of 4 central disk holders 32. The rotary suction pipe 9 is fixed on the main shaft 15 by the fastening bolts 4 through the rotary flange 13 with the O-shaped sealing ring 6 and the water supply connecting flange 14. An upper fixing plate 24 with a horizontal waist-shaped hole 30 is fixed under the fixed water supply cavity 7, and a lower fixing plate 25 with a vertical waist-shaped hole 29 is fixed on a base 27 by a fastening bolt 4 through a base 28. The packing ring 23 is fixed outside the fixed water supply chamber 7 at one end having the water supply chamber hole 11 by the packing ring 22 and the fastening bolt 4, and the packing ring 23 is concentric with the water supply chamber hole 11. The fixed water supply cavity 7 with the fixed flange 5 is sleeved on the rotary water suction pipe 9 through the packing sealing ring 23 and the water supply cavity hole 11, the upper fixed plate 24 and the lower fixed plate 25 are fixed together through the horizontal waist-shaped hole 30 and the vertical waist-shaped hole 29 by using the adjusting bolt 26, and the rotary water suction pipe 9 and the water supply cavity hole 11 are concentric. The water supply hose 1 is fixed in the water supply hole 8 on the water supply flange cover 31 through the regulating valve 2 and the water supply branch pipe 3, and the water supply flange cover 31 with the O-shaped sealing ring 6 is fixed on the fixed flange 5 through the fastening bolt 4. And (5) finishing implementation.
Claims (1)
1. The negative pressure sealing water supply device with built-in impeller is characterized by that the central disk with central hole is fixed in the interior of rotary water suction pipe by means of 4 central disk supports, and is close to central position of main shaft, between the internal diameter of rotary water suction pipe and 4 central disk supports and central disk 4 water-passing holes are formed, the impeller shaft with 3 water-sucking blades fixed on one group or several groups is passed through central screw rod on the fixed shaft of impeller and passed through central hole on the central disk and is fixed on the centre of rotary water suction pipe by means of central screw cap, and the rotary water suction pipe is fixed on the main shaft with water-supplying connecting flange by means of rotary flange and is covered with central screw cap, and the fixed water-supplying cavity with filler sealing ring and sealing is covered on the outside of rotary water suction pipe by means of water-supplying cavity hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597435.3A CN109538493B (en) | 2018-12-15 | 2018-12-15 | Negative pressure sealing water supply device with built-in impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597435.3A CN109538493B (en) | 2018-12-15 | 2018-12-15 | Negative pressure sealing water supply device with built-in impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109538493A CN109538493A (en) | 2019-03-29 |
| CN109538493B true CN109538493B (en) | 2024-04-16 |
Family
ID=65858298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811597435.3A Active CN109538493B (en) | 2018-12-15 | 2018-12-15 | Negative pressure sealing water supply device with built-in impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538493B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113279A (en) * | 2019-06-19 | 2020-12-22 | 广东美的制冷设备有限公司 | Air purification module and air conditioner indoor unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2431421Y (en) * | 2000-08-14 | 2001-05-23 | 王斌 | Single case double vane self-pressing water diversion centrifugal pump |
| KR20020024179A (en) * | 2001-10-31 | 2002-03-29 | 김경원 | Underwater pump |
| RU2384740C1 (en) * | 2009-01-15 | 2010-03-20 | Николай Борисович Болотин | Auger centrifugal pump |
| TW201118245A (en) * | 2009-11-26 | 2011-06-01 | Ishigaki Mech Ind | Siphon-type waterwheel electric power generation device |
| CN209604269U (en) * | 2018-12-15 | 2019-11-08 | 哈尔滨盛迪电力设备有限公司 | Built-in impeller negative-pressure sealing water supply device |
-
2018
- 2018-12-15 CN CN201811597435.3A patent/CN109538493B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2431421Y (en) * | 2000-08-14 | 2001-05-23 | 王斌 | Single case double vane self-pressing water diversion centrifugal pump |
| KR20020024179A (en) * | 2001-10-31 | 2002-03-29 | 김경원 | Underwater pump |
| RU2384740C1 (en) * | 2009-01-15 | 2010-03-20 | Николай Борисович Болотин | Auger centrifugal pump |
| TW201118245A (en) * | 2009-11-26 | 2011-06-01 | Ishigaki Mech Ind | Siphon-type waterwheel electric power generation device |
| CN209604269U (en) * | 2018-12-15 | 2019-11-08 | 哈尔滨盛迪电力设备有限公司 | Built-in impeller negative-pressure sealing water supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109538493A (en) | 2019-03-29 |
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