CN106329810A - Hydrogen leakage plugging device at cold water inlet flange at top of electric generator and plugging method thereof - Google Patents
Hydrogen leakage plugging device at cold water inlet flange at top of electric generator and plugging method thereof Download PDFInfo
- Publication number
- CN106329810A CN106329810A CN201611016595.5A CN201611016595A CN106329810A CN 106329810 A CN106329810 A CN 106329810A CN 201611016595 A CN201611016595 A CN 201611016595A CN 106329810 A CN106329810 A CN 106329810A
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- CN
- China
- Prior art keywords
- plugging
- annular lifting
- water inlet
- cold water
- lifting bar
- 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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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
Abstract
The invention discloses a hydrogen leakage plugging device at a cold water inlet flange at a top of an electric generator and relates to the technical field of electricity generation. The hydrogen leakage plugging device comprises two annular lifting bars symmetrically arranged, wherein the two annular lifting bars are combined together to form a cylindrical structure; fastening bars are arranged on one side of each annular lifting bar and outside the annular lifting bar and symmetrically arranged; gaps for installing bolts are arranged on the fastening bars; lateral plates are respectively arranged on two sides of each annular lifting bar and symmetrically arranged; bolt holes are arranged on the lateral plates; the lateral plates on two annular lifting bars are connected and fastened by bolts. The invention further discloses a plugging method of the plugging device. By the plugging method, a tremendous strength required for combination of the plugging device with the electric generator body is solved and a problem that a flange window is damaged due to pipe stress is also prevented. By detecting the on-site actual leakage plugging effect, the make-up hydrogen volume of leaked hydrogen of the electric generator has been reduced from 16m3 to 5m3 for 24 hours, and thus the plugging device and the plugging method have an obvious effect.
Description
Technical field
The present invention relates to technical field of power generation, be specifically related to a kind of electromotor top and determine the leakage hydrogen leak stopping of cold water inlet flange
The blocking method of cold water inlet flange leakage hydrogen device for plugging is determined at device and a kind of electromotor top.
Background technology
Generator Hydrogen Leakage belongs to the problem being difficult to solve, because the particularity of hydrogen molecule, it is right that traditional blocking method is difficult to
Leakage hydrogen position blocks.The main harm of Generator Hydrogen Leakage has: 1, hydrogen humidity is excessive or electromotor is intake, oil-feed, damages
Electromotor stator and rotor winding insulation, causes alternate or shorted to earth accident time serious；2, consume hydrogen too much, mend hydrogen operation frequency
Numerous, operating cost is high；3, generator system may catch fire, explode, and causes equipment badly damaged.
When Generator Hydrogen Leakage rate reaches certain numerical value it cannot be guaranteed that during hydrogen pressure, will stop electromotor fortune immediately by service requirement
OK, thus affect the stable operation of generating set.
Due to the multiformity of electromotor hydrogen gas system, leakage hydrogen position is the most identical, and blocking method is the most different.The most conventional
Technology be that it is crimped by the weight utilizing device for plugging self with the faying face of engine block, or by generating
Machine cooling water inlet pipeline installs bolt additional to be compacted the faying face of device for plugging and electromotor, and both approaches all exists serious
Defect, former approach can be because strength deficiency causes poorly sealed, and the latter's method can be because pipeline stress causes electromotor to cool down
Water inlet flange form lucite damages.
Summary of the invention
It is an object of the invention to provide a kind of electromotor top and determine cold water inlet flange leakage hydrogen device for plugging and leak stopping
Method, to solve the drawbacks described above caused in prior art.
Cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top, sets including two annular lifting bars and symmetry
Putting, two annular lifting bars are combined formation one tubular construction, and the wherein side of annular lifting bar is provided with bracket, bracket
Being positioned at the annular lateral surface lifting bar and two mutually symmetrical settings of bracket, bracket is provided with for installing lacking of bolt
Mouthful, annular lifting bar be respectively provided on two sides with side plate, two strip side plates are symmetrical arranged and side plate is provided with bolt hole, and two annulars are hung
Side plate on dress bar is bolted fastening.
Preferably, the end face of described annular lifting bar is provided with several nuts, the spiral shell on two annular lifting bars the most side by side
It is bolted between cap.
Preferably, the top of described annular lifting bar is provided with pod apertures.
Preferably, it is provided with female thread in described pod apertures.
Preferably, the bottom surface of described annular lifting bar is provided with the cambered surface that the external surface shape with engine block coordinates.
The blocking method of cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top, comprises the steps:
(1) utilizing the joint hinge of engine block, scene first processes two annular lifting bars, and side, electromotor north and south respectively installs one,
After along generator casing, two strip side plates are installed in leakage thing both sides, hydrogen position and stamp bolt hole, make of band iron, side plate welded
Connect and the side of annular lifting bar, by fastening bolt, two annular lifting bars are locked；
(2) on the shell of engine block, it is welded with hinged seat, hinged seat is hinged with follower bolt, then utilizes pressure
Annular is lifted bar and is crimped on engine block sealing, the tubular now formed to annular lifting bar by crab bolt connection bracket
Inject fluid sealant in structure, can complete to seal.
Preferably, in described step (2), before injecting fluid sealant, first open pod apertures, after gelling to be sealed is solid, will lead
Discharge orifice bolt is closed.
It is an advantage of the current invention that: it is an advantage of the current invention that can solve device for plugging is combined needs with engine block
Immense strength, be avoided that again pipeline stress causes the problem that flange form damages.Through on-the-spot actual plugging effect inspection, send out
Motor leakage hydrogen was mended hydrogen amount by former 24 hours and is reduced to 5 m (acceptance value should be less than 8.5 m) by former 16m, and effect is obvious；
The present invention also makes full use of the joint hinge of engine block and installs annular lifting bar, has saved installation work-hour；Device for plugging top
Design pod apertures, prevents hydrogen from being washed open by undried fluid sealant.
Accompanying drawing explanation
Fig. 1 is the top view that cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top of the present invention.
Fig. 2 is that annular lifting bar part in cold water inlet flange leakage hydrogen device for plugging is determined at one electromotor top of the present invention
Cross-sectional view.
Fig. 3 is that the cross section that a kind of electromotor of present invention top is determined after installing in cold water inlet flange leakage hydrogen device for plugging is cutd open
View.
Wherein, 1-annular lifting bar, 2-bracket, 3-breach, 4-side plate, 5-bolt hole, 6-nut, 7-bolt, 8-leads
Discharge orifice, 9-fluid sealant, 10-follower bolt, 11-cambered surface, 12-engine block.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with
Detailed description of the invention, is expanded on further the present invention.
As shown in Figure 1 to Figure 3, cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top, including two rings
Shape lifting bar 1 and being symmetrical arranged, two annular lifting bars 1 are combined formation one tubular construction, wherein the one of annular lifting bar 1
Side is provided with bracket 2, and bracket 2 is positioned at lateral surface and two mutually symmetrical settings of bracket 2, the bracket 2 of annular lifting bar 1
Be provided with the breach 3 for installing bolt 7, annular lifting bar 1 be respectively provided on two sides with side plate 4, two strip side plates 4 be symmetrical arranged and
Side plate 4 is provided with bolt hole 5, and the side plate 4 on two annular lifting bars 1 connects fastening by bolt 7.
In the present embodiment, the end face of described annular lifting bar 1 is provided with several nuts 6, two annular liftings the most side by side
Connected by bolt 7 between nut 6 on bar 1, improve the fastness between two annular lifting bars 1 further.
In the present embodiment, the top of described annular lifting bar 1 is provided with pod apertures 8, is provided with interior spiral shell in described pod apertures 8
Stricture of vagina, can be sealed pod apertures 8 by screw.
Additionally, the bottom surface of described annular lifting bar 1 is provided with the cambered surface 11 that the external surface shape with engine block 12 coordinates.
The blocking method of cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top, comprises the steps:
(1) utilizing the joint hinge of engine block, scene first processes two annular lifting bars 1, and side, electromotor north and south respectively installs one
Individual, after along generator casing, two strip side plates 4 are installed in leakage thing both sides, hydrogen position and stamp bolt 7 hole 5, make of band iron, will
Two annular lifting bars 1 are locked by side plate 4 welding and the side of annular lifting bar 1 by fastening bolt；
(2) on the shell of engine block 12, it is welded with hinged seat, hinged seat is hinged with follower bolt 10, then profit
Connect bracket 2 with follower bolt 10 annular lifts bar 1 to be crimped on engine block sealing, now lift bar 1 to annular
Inject fluid sealant 9 in the tubular construction formed, can complete to seal.
Based on above-mentioned, it is an advantage of the current invention that can solve device for plugging is combined the huge of needs with engine block 12
Strength, is avoided that again pipeline stress causes the problem that flange form damages.Through on-the-spot actual plugging effect inspection, electromotor leaks
Hydrogen was mended hydrogen amount by former 24 hours and is reduced to 5 m (acceptance value should be less than 8.5 m) by former 16m, and effect is obvious；The present invention
The joint hinge also making full use of engine block installs annular lifting bar 1, has saved installation work-hour；Device for plugging top design is led
Discharge orifice 8, prevents hydrogen from being washed open by undried fluid sealant 9.
As known by the technical knowledge, the present invention can be by other essence without departing from its spirit or the embodiment party of essential feature
Case realizes.Therefore, embodiment disclosed above, for each side, all it is merely illustrative, is not only.Institute
The change within the scope of the present invention or within being equal to the scope of the present invention is had all to be included in the invention.
Claims (7)
1. cold water inlet flange leakage hydrogen device for plugging is determined at an electromotor top, it is characterised in that include two annular liftings
Bar and being symmetrical arranged, two annular lifting bars are combined formation one tubular construction, and the wherein side of annular lifting bar is provided with tightly
Gu bar, bracket is positioned at the annular lateral surface lifting bar and two mutually symmetrical settings of bracket, and bracket is provided with for pacifying
Dress bolt breach, annular lifting bar be respectively provided on two sides with side plate, two strip side plates are symmetrical arranged and side plate is provided with bolt hole,
Article two, the side plate on annular lifting bar is bolted fastening.
Cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top the most according to claim 1, and its feature exists
In: the end face of described annular lifting bar is provided with several nuts the most side by side, passes through spiral shell between the nut on two annular lifting bars
Tether and connect.
Cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top the most according to claim 2, and its feature exists
In: the top of described annular lifting bar is provided with pod apertures.
Cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top the most according to claim 3, and its feature exists
In: it is provided with female thread in described pod apertures.
Cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top the most according to claim 4, and its feature exists
In: the bottom surface of described annular lifting bar is provided with the cambered surface that the external surface shape with engine block coordinates.
6. the leak stopping side of cold water inlet flange leakage hydrogen device for plugging is determined at an electromotor top according to claim 5
Method, it is characterised in that comprise the steps:
(1) utilizing the joint hinge of engine block, scene first processes two annular lifting bars, and side, electromotor north and south respectively installs one,
After along generator casing, two strip side plates are installed in leakage thing both sides, hydrogen position and stamp bolt hole, make of band iron, side plate welded
Connect and the side of annular lifting bar, by fastening bolt, two annular lifting bars are locked；
(2) on the shell of engine block, it is welded with hinged seat, hinged seat is hinged with follower bolt, then utilizes pressure
Annular is lifted bar and is crimped on engine block sealing, the tubular now formed to annular lifting bar by crab bolt connection bracket
Inject fluid sealant in structure, can complete to seal.
The installation side of cold water inlet flange leakage hydrogen device for plugging is determined at a kind of electromotor top the most according to claim 6
Method, it is characterised in that in described step (2), before injecting fluid sealant, first opens pod apertures, after gelling to be sealed is solid, by water conservancy diversion
Hole bolt is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611016595.5A CN106329810B (en) | 2016-11-18 | 2016-11-18 | Cold water inlet flange leakage hydrogen device for plugging and its blocking method are determined at the top of a kind of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611016595.5A CN106329810B (en) | 2016-11-18 | 2016-11-18 | Cold water inlet flange leakage hydrogen device for plugging and its blocking method are determined at the top of a kind of generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106329810A true CN106329810A (en) | 2017-01-11 |
| CN106329810B CN106329810B (en) | 2018-03-27 |
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ID=57817215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611016595.5A Expired - Fee Related CN106329810B (en) | 2016-11-18 | 2016-11-18 | Cold water inlet flange leakage hydrogen device for plugging and its blocking method are determined at the top of a kind of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106329810B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6087644A (en) * | 1983-10-19 | 1985-05-17 | Hitachi Ltd | Hydrogen gas leakage preventing device of high voltage bushing |
| US20030218402A1 (en) * | 2002-05-22 | 2003-11-27 | Stewart Gary L. | Sealed turbine generator and method |
| CN205453375U (en) * | 2015-12-31 | 2016-08-10 | 江苏核电有限公司 | Generator stator penetration piece |
| CN206323248U (en) * | 2016-11-18 | 2017-07-11 | 大唐户县第二热电厂 | Cold water inlet flange leakage hydrogen device for plugging is determined at the top of a kind of generator |
-
2016
- 2016-11-18 CN CN201611016595.5A patent/CN106329810B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6087644A (en) * | 1983-10-19 | 1985-05-17 | Hitachi Ltd | Hydrogen gas leakage preventing device of high voltage bushing |
| US20030218402A1 (en) * | 2002-05-22 | 2003-11-27 | Stewart Gary L. | Sealed turbine generator and method |
| CN205453375U (en) * | 2015-12-31 | 2016-08-10 | 江苏核电有限公司 | Generator stator penetration piece |
| CN206323248U (en) * | 2016-11-18 | 2017-07-11 | 大唐户县第二热电厂 | Cold water inlet flange leakage hydrogen device for plugging is determined at the top of a kind of generator |
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| Publication number | Publication date |
|---|---|
| CN106329810B (en) | 2018-03-27 |
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Granted publication date: 20180327 Termination date: 20191118 |
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