CN113834055B - Auxiliary adjusting device for top spring support and hanger of boiler of thermal power plant - Google Patents
Auxiliary adjusting device for top spring support and hanger of boiler of thermal power plant Download PDFInfo
- Publication number
- CN113834055B CN113834055B CN202111098100.9A CN202111098100A CN113834055B CN 113834055 B CN113834055 B CN 113834055B CN 202111098100 A CN202111098100 A CN 202111098100A CN 113834055 B CN113834055 B CN 113834055B
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- Prior art keywords
- displacement
- adjusting device
- supporting plate
- loading rods
- hanger
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 62
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 9
- 230000001174 ascending effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/22—Drums; Headers; Accessories therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/24—Supporting, suspending, or setting arrangements, e.g. heat shielding
- F22B37/244—Supporting, suspending, or setting arrangements, e.g. heat shielding for water-tube steam generators suspended from the top
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention relates to an auxiliary adjusting device for a spring support and hanger at the top of a boiler of a thermal power plant, which comprises a lower supporting plate, an upper supporting plate, an adjusting device with a displacement indicator and a control system, wherein the lower supporting plate is provided with a lower supporting plate; the lower end face of the lower support plate is arranged on a spring hanger platform, the upper end face of the lower support plate is connected with the adjusting device with the displacement indicator, and the upper support plate is positioned above the adjusting device with the displacement indicator and connected with the screw rod at the upper part of the furnace top spring hanger through threads; the adjusting device with the displacement indicator comprises a displacement indicator, a hydraulic device and a displacement sensor; the hydraulic device comprises three loading rods and a hydraulic oil pipe connected with the loading rods, and the displacement sensor is arranged on the loading rods; the control system is connected with the hydraulic oil pipe and the displacement sensor. The invention can quickly, accurately and efficiently adjust the boiler top support and hanger with problems.
Description
Technical Field
The invention relates to the technical field of auxiliary adjustment of boiler supporting and hanging frames of thermal power plants, in particular to an auxiliary adjustment device of a spring supporting and hanging frame at the top of a boiler of a thermal power plant.
Background
At present, the installation of a thermal power plant in China tends to be stable, a unit built by 2010 runs for nearly 10 years, a steam-water pipeline supporting and hanging system has more or less problems, and the stress of the carried parts is often changed due to the underload, the hanger deflection and the hanger selection error of the supporting and hanging spring. The heating surface pipe of the boiler is used as a main part of the boiler, steam is provided for a steam turbine through a collecting header and a steam guide pipe, the height Wen Jixiang is as high as a few tons of seamless steel pipes, the medium weight is added, the header is as high as tens of tons, if the header supports and hangers have problems, the stress of the heating surface pipe can be changed, a specific part of a certain heating surface pipe system such as a header pipe seat is repeatedly cracked, the header pipe seat is complex in position and difficult to process, and great loss can be caused to the power safety production.
When the bearing force of the spring hanger is large, the axial force of the lock nut is large due to the reasons of corrosion, thread damage and the like of the lock nut, the spring is required to be compressed through external force during adjustment, the larger the spring rigidity is, the more difficult the adjustment is, the more the box hanger is fixed on the steel structure of the furnace roof, and the more inconvenient adjustment is usually caused by the fact that the suspended load is relatively heavy, the furnace roof hanger is detected under-load, and the furnace roof almost has no parts for assisting tools such as an electric hoist and the like, so that the adjustment of the furnace roof hanger is more difficult, and therefore, a portable, adjustable and stable auxiliary device for adjusting the furnace roof hanger is required to be designed, and the supporting hanger with problems can be quickly and efficiently adjusted.
Disclosure of Invention
The invention aims to provide an auxiliary adjusting device for a spring support and hanger at the top of a boiler of a thermal power plant, which aims to solve the problems of too fast stress change of a suspended header, no place for applying force and low adjusting precision caused by manual rough construction and overlarge spring rebound.
The invention provides an auxiliary adjusting device for a spring support and hanger at the top of a boiler of a thermal power plant, which comprises a lower supporting plate, an upper supporting plate, an adjusting device with a displacement indicator and a control system, wherein the lower supporting plate is provided with a lower supporting plate;
the lower end face of the lower support plate is arranged on a spring hanger platform, the upper end face of the lower support plate is connected with the adjusting device with the displacement indicator, and the upper support plate is positioned above the adjusting device with the displacement indicator and connected with the screw rod at the upper part of the furnace top spring hanger through threads;
the adjusting device with the displacement indicator comprises a displacement indicator, a hydraulic device and a displacement sensor; the hydraulic device comprises three loading rods and a hydraulic oil pipe connected with the loading rods, and the displacement sensor is arranged on the loading rods;
the control system is connected with the hydraulic oil pipe and the displacement sensor and is used for controlling the ascending height of the loading rods and receiving ascending height data fed back by the displacement sensor, when one loading rod is fed back to ascend faster, the stroke of the other two loading rods is changed by adjusting oil pressure, so that the whole ascending process is stable, and the stroke of the loading rods is controlled during unloading, so that the displacement sensors on the three loading rods are kept consistent.
Further, the displacement indicator comprises a displacement indicator pointer and a pointer connecting rod, wherein the displacement indicator pointer is connected with the pointer connecting rod, and the pointer connecting rod is fixedly connected with the upper end face of the lower supporting plate.
Further, the pointer connecting rod is welded with the upper end face of the lower supporting plate.
Further, the upper end face of the lower supporting plate is connected with the adjusting device with the displacement indicator through a hexagonal bolt.
By means of the scheme, the auxiliary adjusting device for the spring support and hanger at the top of the boiler in the thermal power plant can be used for adjusting the support and hanger at the top of the boiler with problems fast, accurately and efficiently, and the problems that the suspended header stress changes too fast, no place is used for acting force and the adjusting precision is low due to the fact that manual rough construction and spring rebound are used are solved.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a spring hanger;
FIG. 2 is a schematic view of the installation of the auxiliary adjusting device of the present invention;
FIG. 3 is a top view of the upper support plate of the present invention;
FIG. 4 is a top view of the lower support plate of the present invention;
FIG. 5 is a top view of the adjustment device with displacement indicator of the present invention;
FIG. 6 is a front view of a displacement indicator of the present invention;
fig. 7 is a front view of an adjustment device with a displacement indicator according to the present invention.
Reference numerals in the drawings:
1-a roof spring hanger; 101-locking nuts; 102-a spring hanger platform; 2-a lower support plate; 3-an upper support plate; 4-an adjustment device with a displacement indicator; a 5-displacement indicator; 6-a hydraulic oil pipe; 7-hexagon bolts; 8-displacing the indicator pointer; 9-pointer connecting rod; 10-a displacement sensor; 11-a control system; 12-loading bar.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 2 to 7, the present embodiment provides an auxiliary adjusting device for a top spring hanger of a boiler of a thermal power plant, which comprises a lower support plate 2, an upper support plate 3, an adjusting device 4 with a displacement indicator and a control system 11;
the lower end face of the lower support plate 2 is arranged on the spring hanger platform 102, the upper end face of the lower support plate 2 is connected with the adjusting device 4 with the displacement indicator, and the upper support plate 3 is arranged above the adjusting device 4 with the displacement indicator and connected with the upper screw of the furnace top spring hanger 1 through threads;
the adjusting device 4 with the displacement indicator comprises a displacement indicator 5, a hydraulic device and a displacement sensor 10; the hydraulic device comprises three (hydraulic transmission device) loading rods 12 and a hydraulic oil pipe 6 connected with the loading rods 12, and a displacement sensor 10 is arranged on the loading rods 12;
the control system 11 is connected with the hydraulic oil pipe 6 and the displacement sensor 10, and is used for controlling the ascending height of the loading rods 12, receiving ascending height data fed back by the displacement sensor 10, changing the stroke of the other two loading rods 12 by adjusting oil pressure when feeding back that one loading rod 12 ascends faster, enabling the whole ascending process to be stable, and controlling the stroke of the loading rods 12 during unloading, so that the displacement sensors 10 on the three loading rods 1 are kept consistent.
In this embodiment, the displacement indicator 5 includes a displacement indicator pointer 8 and a pointer connecting rod 9, the displacement indicator pointer 8 is connected with the pointer connecting rod 9, and the pointer connecting rod 9 is fixedly connected with the upper end surface of the lower support plate 2.
In this embodiment, the pointer connecting rod 9 is welded to the upper end surface of the lower support plate 2.
In the present embodiment, the upper end surface of the lower support plate 2 is connected to the adjustment device 4 with displacement indicator by a hexagonal bolt 7.
When the top spring hanger 1 needs to be adjusted, the device is arranged at the position of a screw at the upper part of the hanger, the adjustment distance and the adjustment speed are determined according to a related calculation book, the distance is input on a control panel of the displacement indicator 5, the upper cover plate 3 is locked, when the displacement reaches the adjustment height, the device stops loading, at the moment, the locking nut 101 of the hanger can be loosened to limit the adjustment device, the hanger is unloaded at the moment, the control system 11 can slowly unload, in the adjustment process, if the speeds of three loading rods 12 are inconsistent and unstable, the displacement sensor 10 of the hanger can feed back to the control system 11, and the control system 11 enables the lifting speeds of the loading rods to be consistent through measures such as oil pressure adjustment.
Through this auxiliary adjusting device of boiler top spring gallows of thermal power factory, can be quick, accurate, the efficient adjusts the boiler furnace roof gallows that has the problem, solves and uses manual rough construction, spring resilience to cause the too fast, uses no place of manual electric hoist to exert force, the not high problem of adjustment precision of hanging the header stress variation.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (1)
1. The auxiliary adjusting device for the top spring support and hanger of the boiler of the thermal power plant is characterized by comprising a lower supporting plate (2), an upper supporting plate (3), an adjusting device (4) with a displacement indicator and a control system (11);
the lower end face of the lower supporting plate (2) is arranged on a spring hanger platform (102), the upper end face of the lower supporting plate (2) is connected with an adjusting device (4) with a displacement indicator, and the upper supporting plate (3) is positioned on the adjusting device (4) with the displacement indicator and connected with an upper screw rod of the furnace top spring hanger (1) through threads;
the adjusting device (4) with the displacement indicator comprises a displacement indicator (5), a hydraulic device and a displacement sensor (10); the hydraulic device comprises three loading rods (12) and a hydraulic oil pipe (6) connected with the loading rods (12), and the displacement sensor (10) is arranged on the loading rods (12);
the control system (11) is connected with the hydraulic oil pipe (6) and the displacement sensor (10) and is used for controlling the ascending height of the loading rods (12) and receiving ascending height data fed back by the displacement sensor (10), when one loading rod (12) is fed back to ascend faster, the stroke of the other two loading rods (12) is changed by adjusting oil pressure, so that the whole ascending process is stable, and the stroke of the loading rods (12) is controlled during unloading, so that the displacement sensors (10) on the three loading rods (12) are kept consistent;
the displacement indicator (5) comprises a displacement indicator pointer (8) and a pointer connecting rod (9), wherein the displacement indicator pointer (8) is connected with the pointer connecting rod (9), and the pointer connecting rod (9) is fixedly connected with the upper end surface of the lower supporting plate (2);
the pointer connecting rod (9) is welded with the upper end surface of the lower supporting plate (2);
the upper end surface of the lower supporting plate (2) is connected with the adjusting device (4) with the displacement indicator through a hexagonal bolt (7);
when the top spring hanging frame (1) needs to be adjusted, the device is installed at the position of a screw on the upper part of the hanging frame, the adjusting distance and the adjusting speed are determined according to a calculation book, the upper supporting plate (3) is locked on the control panel of the displacement indicator (5), loading is stopped when displacement reaches the adjusting height, the locking nut (101) of the loose supporting frame is limited to the adjusting device, the control system (11) is slowly unloaded, in the adjusting process, if the speeds of three loading rods (12) are inconsistent and unstable, the displacement sensor (10) feeds back the speed to the control system (11), and the control system (11) enables the lifting speeds of the loading rods to be consistent through oil pressure adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111098100.9A CN113834055B (en) | 2021-09-18 | 2021-09-18 | Auxiliary adjusting device for top spring support and hanger of boiler of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111098100.9A CN113834055B (en) | 2021-09-18 | 2021-09-18 | Auxiliary adjusting device for top spring support and hanger of boiler of thermal power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113834055A CN113834055A (en) | 2021-12-24 |
| CN113834055B true CN113834055B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111098100.9A Active CN113834055B (en) | 2021-09-18 | 2021-09-18 | Auxiliary adjusting device for top spring support and hanger of boiler of thermal power plant |
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| Country | Link |
|---|---|
| CN (1) | CN113834055B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2543934Y (en) * | 2002-04-05 | 2003-04-09 | 杨珍荣 | Blance detector for hydraulic automatic load-engaging beam in work position |
| CN102079480A (en) * | 2011-01-28 | 2011-06-01 | 西安热工研究院有限公司 | Force adjusting device of high-loading rigid hanger |
| CN207394811U (en) * | 2017-09-18 | 2018-05-22 | 中国神华能源股份有限公司 | Suspension apparatus |
| CN108483230A (en) * | 2018-05-19 | 2018-09-04 | 中国能源建设集团山西电力建设第三有限公司 | A kind of the sunpender regulating mechanism and adjusting method of thermal power plant's suspention boiler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4221761B2 (en) * | 2005-09-30 | 2009-02-12 | 株式会社日立プラントテクノロジー | Boiler module lifting construction method and lifting device |
-
2021
- 2021-09-18 CN CN202111098100.9A patent/CN113834055B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2543934Y (en) * | 2002-04-05 | 2003-04-09 | 杨珍荣 | Blance detector for hydraulic automatic load-engaging beam in work position |
| CN102079480A (en) * | 2011-01-28 | 2011-06-01 | 西安热工研究院有限公司 | Force adjusting device of high-loading rigid hanger |
| CN207394811U (en) * | 2017-09-18 | 2018-05-22 | 中国神华能源股份有限公司 | Suspension apparatus |
| CN108483230A (en) * | 2018-05-19 | 2018-09-04 | 中国能源建设集团山西电力建设第三有限公司 | A kind of the sunpender regulating mechanism and adjusting method of thermal power plant's suspention boiler |
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| Publication number | Publication date |
|---|---|
| CN113834055A (en) | 2021-12-24 |
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