CN102427286A - Purge method and purge system for hollow conductor - Google Patents
Purge method and purge system for hollow conductor Download PDFInfo
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- CN102427286A CN102427286A CN2011103516210A CN201110351621A CN102427286A CN 102427286 A CN102427286 A CN 102427286A CN 2011103516210 A CN2011103516210 A CN 2011103516210A CN 201110351621 A CN201110351621 A CN 201110351621A CN 102427286 A CN102427286 A CN 102427286A
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- hollow conductor
- medium
- fluid
- predetermined pressure
- blowing method
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- 239000004020 conductor Substances 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000010926 purge Methods 0.000 title claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 154
- 238000007664 blowing Methods 0.000 claims description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention discloses a purge method for a hollow conductor. The purge method comprises the following step of: alternately introducing a first fluid medium with first preset pressure and a second fluid medium with second preset pressure into the hollow conductor. The invention also provides a purge system for implementing the purge method. By the method and the system, the fluid media with different pressures are introduced into the hollow conductor, so that a relatively stronger impact force can be generated on the inner wall of the hollow conductor, and foreign matters on the inner wall of the hollow conductor can further be removed effectively.
Description
Technical field
The present invention relates to the hollow conductor in the motor, more specifically, relate to a kind of blowing method and the purging system of implementing this blowing method of motor hollow core lead.
Background technology
Double water innercooling electric machine is a kind of motor that water directly cools off from the inside of winding wire.In this generator, generator line rod is made up of hollow conductor and solid conductor, cooling water is fed hollow conductor inside coil is cooled off.
In the generator line rod of most of double water innercooling electric machine, 16 of nearly hollow conductors.Because hollow conductor is elongated, and transposition in the online rod, when any one or a few hollow conductor stops up or foreign matter is arranged, will cause cooling water flow to reduce.In the prior art, adopt the method that in hollow conductor, feeds water to stopping up or having the hollow conductor of foreign matter to purge with certain pressure.But this method does not often reach desirable effect, and the inner foreign matters of hollow conductor is removed fully.
Summary of the invention
The object of the present invention is to provide a kind of blowing method and purging system of hollow conductor, through this blowing method and the purging system inner foreign matter of hollow conductor more effectively.
In order to achieve the above object; As one aspect of the present invention; A kind of blowing method of hollow conductor is provided, and wherein, this blowing method comprises alternately in said hollow conductor, feeding to have the first fluid medium of first predetermined pressure and second fluid media (medium) with second predetermined pressure.
Preferably, said second predetermined pressure is greater than said first predetermined pressure.
Preferably, said first predetermined pressure is 0.3 to 0.7MPa.
Preferably, said second predetermined pressure than said first predetermined pressure big 0.2 to 0.5MPa.
Preferably, said blowing method also comprises said first predetermined pressure of adjusting and/or said second predetermined pressure.
Preferably, said blowing method also comprises the feeding time of said first fluid medium of control and/or said second fluid media (medium).
Preferably, the said feeding time is 1 to 5 second.
Preferably, said first fluid medium is a liquid, and said second fluid media (medium) is a gas.
Preferably, under the normal temperature and pressure, the solubility of said second fluid media (medium) in the first fluid medium is less than 0.1g/L.
Preferably, said liquid is water.
Preferably, said gas is nitrogen.
As another aspect of the present invention; A kind of purging system of hollow conductor is provided; Wherein, This purging system comprises first-class body source with first predetermined pressure and second fluid source with second predetermined pressure, and this first-class body source and second fluid source are used for alternately in said hollow conductor, feeding the first fluid medium and second fluid media (medium).
Preferably, said second predetermined pressure is greater than said first predetermined pressure.
Preferably, said first predetermined pressure is 0.3 to 0.7MPa.
Preferably, said second predetermined pressure than said first predetermined pressure big 0.2 to 0.5MPa.
Preferably, said first fluid medium is a liquid, and second fluid media (medium) is a gas.
Preferably, under the normal temperature and pressure, the solubility of said second fluid media (medium) in the first fluid medium is less than 0.1g/L.
Preferably, said first-class body source comprises giant.
Preferably, said second fluid source comprises the elevated pressure nitrogen gas tank.
The present invention is through feeding the fluid media (medium) with different pressures in hollow conductor, thereby can produce bigger impulsive force at the inwall of hollow conductor, and then more effectively removes the foreign matter on the inwall of hollow conductor.
Other features and advantages of the present invention will partly specify in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with following embodiment, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the sketch map of the blowing method of hollow conductor of the present invention; With
Fig. 2 is a kind of sketch map of blow device of the blowing method of the described hollow conductor of embodiment of the present invention.
Description of reference numerals:
11 input parts, 12 efferents
11a inlet 11b input pipe
11c break valve 12a outlet
12b efferent duct 12c blow gun
Embodiment
Be elaborated below in conjunction with the accompanying drawing specific embodiments of the invention.Should be understood that embodiment described herein only is used for explanation and explains the present invention, is not limited to the present invention.
Shown in Fig. 1 is the sketch map of the blowing method of hollow conductor of the present invention; Shown in figure, this blowing method comprises alternately in said hollow conductor, feeding to have the first fluid medium of first predetermined pressure and second fluid media (medium) with second predetermined pressure.
After in hollow conductor, feeding the first fluid medium, and then in hollow conductor, feed second fluid media (medium), the first fluid medium receives the promotion of second fluid media (medium).Usually, the time in feeding time remaining several seconds of the first fluid medium and second fluid media (medium) gets final product.
Second fluid media (medium) produces impetus to the first fluid medium, thereby the first fluid medium is quickened when this first fluid medium of second fluid media (medium) contact, and then the inwall of hollow conductor is produced bigger impulsive force.And, when the first fluid velocity of medium changes, can on the inwall of hollow conductor, produce bigger stress, thereby remove the foreign matter on the inwall of hollow conductor more easily.
In addition, alternately the feeding of the first fluid medium and second fluid media (medium) makes foreign matter on the inwall of hollow conductor receive the impulsive force of alternate, more be easy to generate loosening, thereby be more prone to come off.
The impulsive force that the inwall of hollow conductor is produced is big more, can remove the foreign matter on the hollow conductor effectively more.
In the present invention, the feeding of the first fluid medium and second fluid media (medium) can replace once, also can replace repeatedly, confirms according to the concrete condition of foreign matter on the inwall of the length of hollow conductor and hollow conductor.
When the blowing method of the described hollow conductor of embodiment of the present invention; Can hollow conductor directly be connected with the fluid source that the first fluid medium and second fluid media (medium) are provided, realize that through the control flows body source alternately feeding of the first fluid medium and second fluid media (medium) gets final product then.The pressure that it is pointed out that said first fluid medium is meant the pressure of the fluid source that this first fluid medium is provided, but not the pressure of first fluid medium in said hollow conductor.In like manner, the pressure of the fluid source that also provides this second fluid medium that the pressure of second fluid media (medium) refers to, rather than refer to the pressure of second fluid media (medium) in hollow conductor.
As another aspect of the present invention, a kind of purging system of implementing the blowing method of above-mentioned hollow conductor is provided also.This purging system comprises first-class body source with first predetermined pressure and second fluid source with second predetermined pressure, and this first-class body source and second fluid source are used for alternately in said hollow conductor, feeding the first fluid medium and second fluid media (medium).
When using above-mentioned purging system to purge hollow conductor; Can use common triple valve that the first-class body source and second fluid source are communicated with hollow conductor; Only need to realize alternately feeding the first fluid medium and second fluid media (medium), also can control the first fluid medium and second fluid media (medium) alternately feeds in the hollow conductor through the switching of controlling the first-class body source and second fluid source to hollow conductor inside through the control triple valve.
When using above-mentioned purging system to purge hollow conductor, can also use blow device, the first-class body source and second fluid source are connected with hollow conductor.
Shown in Fig. 2 is a kind of sketch map of blow device of the blowing method of the described hollow conductor of embodiment of the present invention.Shown in figure, this device comprises the input part 11 and efferent 12 that is connected.And input part 11 comprises input pipe 11b and the inlet 11a that is arranged on this input pipe 11b two ends, and efferent 12 comprises efferent duct 12b and the outlet 12a that is arranged on the end of this efferent duct 12b, and the other end of efferent duct 12b links to each other with input pipe 11a.For the ease of being connected with hollow conductor, also be provided with blow gun 12c in the outlet, this blow gun 12c comprises cylindrical end and the conical end that links to each other with this cylindrical end, and said cylindrical end matches with outlet 12a, and said conical end matches with said hollow conductor.
The blow gun 12c of this blow device is connected with hollow conductor, provides the first-class body source of first fluid medium and second fluid source that second fluid media (medium) is provided to be connected with two inlet 11a respectively.The first fluid medium and second fluid media (medium) flow into input pipe 11 through two inlet 11a respectively, and the outlet 12a through the efferent duct 12b that is connected with input pipe 11 to get into hollow conductor inner.
When alternately the feeding of control first fluid medium and second fluid media (medium), can adopt several different methods.For example, alternately feeding of the first fluid medium and second fluid media (medium) controlled in the switching that can control second fluid source of the first-class body source that the first fluid medium is provided and second fluid media (medium).Promptly; At first open the first-class body source that the first fluid medium is provided; To provide the first-class body source of first fluid medium to close after the feeding time remaining scheduled time of first fluid medium; Open second fluid source that second fluid media (medium) is provided then immediately, same, after the feeding time remaining scheduled time of second fluid media (medium), will provide second fluid source of second fluid media (medium) to close.Aforesaid operations continues to carry out just can realizing alternately feeding of the first fluid medium and second fluid media (medium).
In the present invention; If the blow device shown in use Fig. 2 is to purging on the hollow conductor; Can also break valve 11c be installed respectively at two inlet 11a places of this blow device; Like this, under the state that fluid source is opened, the switching that only needs control to be positioned at the break valve 11c at two inlet 11a places can realize alternately feeding of the first fluid medium and second fluid media (medium).
Preferably, said second predetermined pressure is greater than said first predetermined pressure.Thereby make second fluid media (medium) can play the effect of acceleration, thereby make the first fluid medium produce bigger impact the inwall of hollow conductor to the first fluid medium.Correspondingly, in the purging system of hollow conductor provided by the present invention, first predetermined pressure of first-class body source is greater than second predetermined pressure of second fluid source.
Now between 2mm to 15mm, wall thickness is about 3mm to the internal diameter of hollow conductor commonly used usually, and the pressure that can bear according to the lead wall of hollow conductor is 0.8MPa, and preferably, first predetermined pressure is 0.3 to 0.7MPa.Preferably, said second predetermined pressure than said first predetermined pressure big 0.2 to 0.5MPa.Thereby both can remove the foreign matter on the hollow conductor inwall, and can avoid hollow conductor to damage again because of internal pressure is excessive.
According to the material of hollow conductor and the difference of the length of service time, the bond strength of the foreign matter that adheres on the inwall of hollow conductor and hollow conductor inwall and the thickness of foreign matter also can be different.The time that hollow conductor uses is long more, and is thick more attached to the foreign matter on the inwall on the hollow conductor, in conjunction with also firm more.Therefore, in the blowing method of hollow conductor of the present invention, can also regulate the size of said first predetermined pressure and/or said second predetermined pressure according to the thickness size of foreign matter on the inwall of hollow conductor.
And, in purge, also can regulate the size of first predetermined pressure and/or second predetermined pressure.For example, when purging had just begun to carry out, the foreign matter on the inwall of hollow conductor was thicker, can use first fluid medium with first bigger predetermined pressure and second fluid media (medium) with second bigger predetermined pressure that hollow conductor is purged.First fluid medium with first bigger predetermined pressure with have after the second bigger fluid media (medium) purges certain hour to hollow conductor; Foreign matter can become flexible on the inwall of hollow conductor; And thickness meeting attenuation at this moment, can suitably be turned down first predetermined pressure and second predetermined pressure.
The method of controlling first predetermined pressure and second predetermined pressure also can have multiple.For example, can provide second fluid source of the first-class body source of first fluid medium and second fluid media (medium) to control the size of first predetermined pressure and second predetermined pressure through control.When using the blowing method of the described hollow conductor of blow device embodiment of the present invention shown in Fig. 2, can also be at two inlet 11a places difference install adjustment valves of this blow device, with the first fluid medium of adjusting feeding and the pressure of second fluid media (medium).
As stated, this method can also comprise the feeding time of said first fluid medium of control and/or said second fluid media (medium).Likewise, the feeding time that can provide the switching of the first-class body source of first fluid medium to control the first fluid medium through control, and provide the switching of second fluid source of second fluid media (medium) to control the feeding time of second fluid media (medium) through control.When using the blowing method of the described hollow conductor of blow device embodiment of the present invention shown in Fig. 2, can also control the feeding time of the first fluid medium and/or second fluid media (medium) through the switching of controlling the break valve 11c that is installed in two inlet 11a places respectively.
Usually; The feeding time of first fluid medium and the feeding time of second fluid media (medium) can be 1 to 5 second in each alternation procedure; Realizing the first fluid medium and second fluid media (medium) to the quick impact of the inwall of hollow conductor and realize the quick variation of pressure, thereby more help the inwall that the first fluid medium impacts hollow conductor more tempestuously.Correspondingly, in the purging system of hollow conductor of the present invention, in each alternation procedure, it is 1 to 5 second that first-class body source provides the time of first fluid medium, and it also is 1 to 5 second that second fluid source provides the time of second fluid media (medium).
In the blowing method of hollow conductor of the present invention, the first fluid medium promptly can be that gas also can be liquid, and same, second fluid media (medium) promptly can be that gas also can be liquid.Preferably, said first fluid medium is a liquid, and second fluid media (medium) is a gas.The first fluid density of medium is greater than second fluid media (medium); And; Second fluid media (medium) is difficult to be dissolved in a short period of time the first fluid medium; Therefore, second fluid media (medium) can produce bigger motive force to the first fluid medium, thereby makes the first fluid medium produce greater impact power to the inwall of hollow conductor.
Preferably, second fluid media (medium) is at normal temperatures and pressures, and the solubility in the first fluid medium is less than the gas of 0.1g/L.Thereby, can produce impetus preferably to the first fluid medium.
Usually, in order to practice thrift cost, said liquid can be water.Second fluid media (medium) can be air or other be insoluble in the gas of water (be under the normal temperature and pressure in water solubility less than 0.1g/L), for example nitrogen.In the production scene, the most frequently used gases at high pressure are nitrogen.
Therefore; The above-mentioned first-class body source with first predetermined pressure that provides can comprise the giant that arrives commonly used in the industry; Through giant water is fed in the hollow conductor; Nitrogen is fed in the hollow conductor elevated pressure nitrogen gas tank that arrives commonly used in the industry and provide second fluid source to comprise with second predetermined pressure.
The feeding first fluid medium that in hollow conductor, replaces and second fluid media (medium); Attached to the most of foreign matter on the hollow conductor inwall (for example; Greater than the foreign matter total amount 90%) come off after, can feed water to inner the continuing of hollow conductor, thereby the foreign matter that will come off is gone out hollow conductor.
The present invention is through feeding the fluid media (medium) with different pressures in hollow conductor, thereby can produce bigger impulsive force at the inwall of hollow conductor, and then more effectively knows the foreign matter on the inwall of hollow conductor.
More than combine accompanying drawing to describe preferred implementation of the present invention in detail; But; The present invention is not limited to the detail in the above-mentioned execution mode; In technical conceive scope of the present invention, can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove that in addition each the concrete technical characterictic described in above-mentioned embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various execution mode of the present invention, as long as it is without prejudice to thought of the present invention, it should be regarded as the disclosed content of the present invention equally.
Claims (19)
1. the blowing method of a hollow conductor is characterized in that, this blowing method comprises alternately in said hollow conductor, feeding to have the first fluid medium of first predetermined pressure and second fluid media (medium) with second predetermined pressure.
2. the blowing method of hollow conductor according to claim 1 is characterized in that, said second predetermined pressure is greater than said first predetermined pressure.
3. according to the blowing method of the said hollow conductor of claim 2, it is characterized in that said first predetermined pressure is 0.3 to 0.7MPa.
4. the blowing method of hollow conductor according to claim 2 is characterized in that, said second predetermined pressure than said first predetermined pressure big 0.2 to 0.5MPa.
5. the blowing method of hollow conductor according to claim 1 is characterized in that, this blowing method also comprises regulates said first predetermined pressure and/or said second predetermined pressure.
6. the blowing method of hollow conductor according to claim 1 is characterized in that, this blowing method also comprises the feeding time of said first fluid medium of control and/or said second fluid media (medium).
7. the blowing method of hollow conductor according to claim 6 is characterized in that, the said feeding time is 1 to 5 second.
8. according to the blowing method of any described hollow conductor among the claim 1-7, it is characterized in that said first fluid medium is a liquid, second fluid media (medium) is a gas.
9. the blowing method of hollow conductor according to claim 8 is characterized in that, under the normal temperature and pressure, the solubility of said second fluid media (medium) in the first fluid medium is less than 0.1g/L.
10. the blowing method of hollow conductor according to claim 9 is characterized in that, said liquid is water.
11. the blowing method of hollow conductor according to claim 9 is characterized in that, said gas is nitrogen.
12. the purging system of a hollow conductor; It is characterized in that; This purging system comprises first-class body source with first predetermined pressure and second fluid source with second predetermined pressure, and this first-class body source and second fluid source are used for alternately in said hollow conductor, feeding the first fluid medium and second fluid media (medium).
13. the purging system of hollow conductor according to claim 12 is characterized in that, said second predetermined pressure is greater than said first predetermined pressure.
14. the purging system according to the said hollow conductor of claim 13 is characterized in that, said first predetermined pressure is 0.3 to 0.7MPa.
15. the purging system of hollow conductor according to claim 13 is characterized in that, said second predetermined pressure than said first predetermined pressure big 0.2 to 0.5MPa.
16. the purging system according to any described hollow conductor among the claim 12-15 is characterized in that, said first fluid medium is a liquid, and second fluid media (medium) is a gas.
17. the purging system of hollow conductor according to claim 16 is characterized in that, under the normal temperature and pressure, the solubility of said second fluid media (medium) in the first fluid medium is less than 0.1g/L.
18. the purging system of hollow conductor according to claim 17 is characterized in that, said first-class body source comprises giant.
19. the purging system of hollow conductor according to claim 17 is characterized in that, said second fluid source comprises the elevated pressure nitrogen gas tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110351621.0A CN102427286B (en) | 2011-11-08 | 2011-11-08 | A kind of blowing method of hollow conductor and purging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110351621.0A CN102427286B (en) | 2011-11-08 | 2011-11-08 | A kind of blowing method of hollow conductor and purging system |
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| Publication Number | Publication Date |
|---|---|
| CN102427286A true CN102427286A (en) | 2012-04-25 |
| CN102427286B CN102427286B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110351621.0A Active CN102427286B (en) | 2011-11-08 | 2011-11-08 | A kind of blowing method of hollow conductor and purging system |
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| Country | Link |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460155A (en) * | 2000-08-23 | 2003-12-03 | 奥西边科·谢尔盖·勃利索维奇 | Device for effecting flow of liquid medium |
| CN101553324A (en) * | 2006-08-22 | 2009-10-07 | 费丁斯塔德科技公司 | Apparatus and method for cleaning pipes and pipe systems |
-
2011
- 2011-11-08 CN CN201110351621.0A patent/CN102427286B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460155A (en) * | 2000-08-23 | 2003-12-03 | 奥西边科·谢尔盖·勃利索维奇 | Device for effecting flow of liquid medium |
| CN101553324A (en) * | 2006-08-22 | 2009-10-07 | 费丁斯塔德科技公司 | Apparatus and method for cleaning pipes and pipe systems |
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| Publication number | Publication date |
|---|---|
| CN102427286B (en) | 2016-01-20 |
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Address after: 100011 Shenhua building, Anwai xibinhe Road, Dongcheng District, Beijing Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: National Energy Group Guohua Power Co.,Ltd. Patentee after: HEBEI GUOHUA DINGZHOU POWER GENERATION Co.,Ltd. Address before: 100011 Shenhua building, Anwai xibinhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: BEIJING GUOHUA POWER Co.,Ltd. Patentee before: HEBEI GUOHUA DINGZHOU POWER GENERATION Co.,Ltd. Address after: 100011 Shenhua building, Anwai xibinhe Road, Dongcheng District, Beijing Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: National Energy Group Guohua Power Co.,Ltd. Patentee after: Guoneng Hebei Dingzhou Power Generation Co.,Ltd. Address before: 100011 Shenhua building, Anwai xibinhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: National Energy Group Guohua Power Co.,Ltd. Patentee before: HEBEI GUOHUA DINGZHOU POWER GENERATION Co.,Ltd. |