CN113984295A - Be used for measuring steam turbine cylinder body gas leakage measuring device - Google Patents
Be used for measuring steam turbine cylinder body gas leakage measuring device Download PDFInfo
- Publication number
- CN113984295A CN113984295A CN202111086555.9A CN202111086555A CN113984295A CN 113984295 A CN113984295 A CN 113984295A CN 202111086555 A CN202111086555 A CN 202111086555A CN 113984295 A CN113984295 A CN 113984295A
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- CN
- China
- Prior art keywords
- cylinder body
- steam turbine
- measuring
- measuring device
- gasbag cover
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- 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
- 238000007789 sealing Methods 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 10
- 210000003437 trachea Anatomy 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 18
- 238000001514 detection method Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a measuring device for measuring gas leakage of a steam turbine cylinder body, which comprises a cylinder body, wherein the cylinder body consists of an upper cylinder and a lower cylinder, mounting rings are mounted at the left end and the right end of the cylinder body, airbag sleeves are detachably connected at the front side and the rear side between the mounting rings, the airbag sleeves are arranged corresponding to side seams of the cylinder body, the airbag sleeves are formed by connecting a plurality of airbags, a pressure gauge is arranged on each airbag sleeve, a gas pipe is connected to the outer side of each airbag sleeve, and the outer ends of the gas pipes are connected with a vacuum pump. Through setting up the laminating of gasbag cover on the cylinder body side seam, carry out the evacuation in to the gasbag cover through the vacuum pump, detect whether side seam department leaks gas to adopt a plurality of gasbags to connect to form, detect the multiple spot through setting up a plurality of gasbags, make the check point more accurate, simple structure, it is convenient to use.
Description
Technical Field
The invention relates to the technical field of steam turbine equipment detection, in particular to a measuring device for measuring air leakage of a steam turbine cylinder body.
Background
In the engineering of steam turbine work, gas leakage is a very serious problem, and the device is in case the gas leakage can reduce the efficiency of steam turbine and be the waste to the energy, and the steam gets into in the lubricating oil when gas leakage is still easy simultaneously and causes the oil emulsification, and too big meeting of gas leakage causes the damage of instrument moreover, still can make the axle bush temperature rise, makes the axle bush damage, but general steam turbine gas leakage is difficult to discover, and the continuous operation after gas leakage can produce the harm to spare part in the steam turbine moreover. Patent No. CN207570736U discloses a steam turbine set condenser air leakage inspection device, which is characterized in that helium is introduced into the interior of the device through an air inlet pipe, gas in a low-pressure cylinder is discharged into a leak detector through an exhaust pipe, the gas is analyzed through the leak detector, and whether air leakage occurs is determined according to a gas analysis result, but the device can only determine whether the low-pressure cylinder leaks air, and can not effectively determine an air leakage point, thereby influencing subsequent maintenance, and therefore, solving the problem is very important.
Disclosure of Invention
The invention aims to provide a device for measuring the air leakage of a steam turbine cylinder body, which is characterized in that an air bag sleeve is arranged and attached to a side seam of the cylinder body, the air bag sleeve is vacuumized by a vacuum pump, and the air bag sleeve is used for detecting whether air leakage occurs at the side seam or not.
The invention provides a measuring device for measuring gas leakage of a steam turbine cylinder body, which comprises a cylinder body, wherein the cylinder body consists of an upper cylinder and a lower cylinder, mounting rings are mounted at the left end and the right end of the cylinder body, airbag sleeves are detachably connected at the front side and the rear side between the mounting rings, the airbag sleeves are arranged corresponding to side seams of the cylinder body, the airbag sleeves are formed by connecting a plurality of airbags, a pressure gauge is arranged on each airbag sleeve, a gas pipe is connected to the outer side of each airbag sleeve, and the outer ends of the gas pipes are connected with a vacuum pump.
The further improvement lies in that: the mounting ring is composed of a front semicircular ring and a rear semicircular ring, and the two semicircular rings are connected through bolts.
The further improvement lies in that: the gasbag cover inboard is equipped with the sealing strip, is equipped with the adsorption tank in the sealing strip, and the adsorption tank outer end is connected with the exhaust tube, and the exhaust tube is connected with external vacuum generator.
The further improvement lies in that: the pressure gauge and the air pipe are both detachably connected to the air bag.
The further improvement lies in that: and the air pipe is provided with a flow sensor.
The further improvement lies in that: the air bag sleeve is made of high-temperature-resistant materials.
The invention has the beneficial effects that: through being equipped with the collar at the cylinder body both ends, the collar comprises semicircular ring, can install and dismantle the collar, the gasbag cover is fixed on the cylinder body lateral wall through the collar, and correspond the laminating in cylinder body side seam department, the gasbag cover closely laminates on the cylinder body surface through the sealing strip, again through connecting the trachea on the gasbag cover, the vacuum pump bleeds through the trachea, the negative pressure condition in the demonstration gasbag cover through the manometer, thereby confirm fast whether the cylinder body side seam leaks gas through the data display of manometer, detect simply directly more, detection efficiency is improved.
The sealing strip inboard is equipped with the adsorption tank, and the adsorption tank laminating carries out the evacuation at the cylinder body surface through the exhaust tube to adsorb on the cylinder body surface, make gasbag cover closely laminate on the cylinder body, thereby be convenient for detect gasbag cover suction.
Form the gasbag cover through adopting a plurality of gasbags to trachea and manometer can dismantle the connection on the gasbag, install on different gasbags through trachea and manometer, thereby detect the point of difference, can effectual definite area of leaking gas, thereby improve the effect that detects.
Detect the flow of bleeding through set up flow sensor on the trachea, the cooperation manometer demonstration, effectually show the gas leakage result to make operating personnel know the testing result fast.
Drawings
Fig. 1 is a front view structural view of the present invention.
Fig. 2 is a side view structural view of the present invention.
Fig. 3 is a schematic view of the structure of an airbag cover.
Wherein: 1-cylinder body, 2-mounting ring, 3-air bag sleeve, 4-air bag, 5-pressure gauge, 6-air pipe, 7-vacuum pump, 8-bolt, 9-sealing strip, 10-adsorption groove, 11-air exhaust pipe and 12-flow sensor.
Detailed Description
For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1-3, the present embodiment provides a device for measuring gas leakage of a steam turbine cylinder, which includes a cylinder body 1, the cylinder body 1 is composed of an upper cylinder and a lower cylinder, mounting rings 2 are installed at left and right ends of the cylinder body 1, the mounting rings 2 are composed of a front semicircular ring and a rear semicircular ring, and the two semicircular rings are connected by bolts 8.
The side can be dismantled around between the collar 2 and be connected with gasbag cover 3, and gasbag cover 3 corresponds 1 side seam of cylinder body and sets up, and gasbag cover 3 adopts high temperature resistant material, and 3 inboards of gasbag cover are equipped with sealing strip 9, and gasbag cover 3 closely laminates on the cylinder body surface through sealing strip 9, is equipped with adsorption tank 10 in the sealing strip 9, and adsorption tank 10 outer end is connected with exhaust tube 11, and exhaust tube 11 is connected with external vacuum generator.
The air bag sleeve 3 is formed by connecting a plurality of air bags 4, a pressure gauge 5 is arranged on the air bag sleeve 3, an air pipe 6 is connected to the outer side of the air bag sleeve 3, a vacuum pump 7 is connected to the outer end of the air pipe 6, a flow sensor 12 is arranged on the air pipe 6, and the flow sensor 12 detects the air exhaust flow; manometer 5, trachea 6 all can dismantle the connection on gasbag 4, connect the installation through gasbag 4 to manometer 5 and trachea 6 selection difference to detect the difference.
When the air bag cover is used, two ends of the air bag cover 3 are arranged on the mounting rings 2, the mounting rings 2 are arranged at two ends of the cylinder body 1, and the mounting rings 2 are locked through the bolts 8, so that the air bag cover 3 is sewn on the surface of the cylinder body 1 corresponding to the side of the cylinder body 1 and is attached to the surface of the cylinder body 1; an external vacuum generator vacuumizes the adsorption tank 10 through an exhaust pipe 11, and the air bag sleeve 3 is tightly adsorbed on the surface of the cylinder body 1 through a sealing strip 9; through connecting manometer 5 and trachea 6 on gasbag 4, bleed through vacuum pump 7, manometer 5 detects the pressure in the gasbag 4, and flow sensor 12 detects the flow of bleeding, through the detection of manometer 5 and flow sensor 12 to confirm whether the check point leaks gas, constitute gasbag cover 3 through setting up a plurality of gasbags 4, the multiple spot of being convenient for detects, finds the gas leakage point fast, improves detection effect.
Claims (6)
1. The utility model provides a be used for measuring steam turbine cylinder body gas leakage measuring device, including cylinder body (1), cylinder body (1) comprises last jar and lower jar, collar (2) are installed at both ends about cylinder body (1), a serial communication port, the side can be dismantled around between collar (2) and be connected with gasbag cover (3), gasbag cover (3) correspond cylinder body (1) side seam setting, gasbag cover (3) are connected by a plurality of gasbags (4) and are formed, be equipped with manometer (5) on gasbag cover (3), gasbag cover (3) outside is connected with trachea (6), trachea (6) outer end is connected with vacuum pump (7).
2. A measuring device for measuring steam turbine block leakage according to claim 1, wherein: the mounting ring (2) consists of a front semicircular ring and a rear semicircular ring which are connected through a bolt (8).
3. A measuring device for measuring steam turbine block leakage according to claim 1, wherein: the inner side of the air bag sleeve (3) is provided with a sealing strip (9), an adsorption groove (10) is arranged in the sealing strip (9), the outer end of the adsorption groove (10) is connected with an exhaust tube (11), and the exhaust tube (11) is connected with an external vacuum generator.
4. A measuring device for measuring steam turbine block leakage according to claim 1, wherein: the pressure gauge (5) and the air pipe (6) are detachably connected to the air bag (4).
5. A measuring device for measuring steam turbine block leakage according to claim 1, wherein: and a flow sensor (12) is arranged on the air pipe (6).
6. A measuring device for measuring steam turbine block leakage according to claim 1, wherein: the air bag sleeve (3) is made of high-temperature-resistant materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111086555.9A CN113984295A (en) | 2021-09-16 | 2021-09-16 | Be used for measuring steam turbine cylinder body gas leakage measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111086555.9A CN113984295A (en) | 2021-09-16 | 2021-09-16 | Be used for measuring steam turbine cylinder body gas leakage measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113984295A true CN113984295A (en) | 2022-01-28 |
Family
ID=79735934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111086555.9A Pending CN113984295A (en) | 2021-09-16 | 2021-09-16 | Be used for measuring steam turbine cylinder body gas leakage measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113984295A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201757696U (en) * | 2010-03-10 | 2011-03-09 | 中国科学院等离子体物理研究所 | Low temperature pipeline welding bead leak detection tool |
| CN103630304A (en) * | 2012-08-20 | 2014-03-12 | 中核核电运行管理有限公司 | Airbag device for detecting expansion joint performance between steam turbine and condenser |
| CN105675231A (en) * | 2016-02-22 | 2016-06-15 | 中航光电科技股份有限公司 | Negative pressure sealing detection device |
| CN111141465A (en) * | 2019-12-31 | 2020-05-12 | 嘉兴学院 | Air tightness detection device for welding metal pipeline |
| CN214748714U (en) * | 2021-05-24 | 2021-11-16 | 上海煜馨建设工程有限公司 | Pressure pipeline pressure detection device capable of detecting position of air leakage point |
-
2021
- 2021-09-16 CN CN202111086555.9A patent/CN113984295A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201757696U (en) * | 2010-03-10 | 2011-03-09 | 中国科学院等离子体物理研究所 | Low temperature pipeline welding bead leak detection tool |
| CN103630304A (en) * | 2012-08-20 | 2014-03-12 | 中核核电运行管理有限公司 | Airbag device for detecting expansion joint performance between steam turbine and condenser |
| CN105675231A (en) * | 2016-02-22 | 2016-06-15 | 中航光电科技股份有限公司 | Negative pressure sealing detection device |
| CN111141465A (en) * | 2019-12-31 | 2020-05-12 | 嘉兴学院 | Air tightness detection device for welding metal pipeline |
| CN214748714U (en) * | 2021-05-24 | 2021-11-16 | 上海煜馨建设工程有限公司 | Pressure pipeline pressure detection device capable of detecting position of air leakage point |
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Application publication date: 20220128 |