CN201296782Y - Boiler stop hot blast antisepsis preservation device - Google Patents
Boiler stop hot blast antisepsis preservation device Download PDFInfo
- Publication number
- CN201296782Y CN201296782Y CNU2008202178526U CN200820217852U CN201296782Y CN 201296782 Y CN201296782 Y CN 201296782Y CN U2008202178526 U CNU2008202178526 U CN U2008202178526U CN 200820217852 U CN200820217852 U CN 200820217852U CN 201296782 Y CN201296782 Y CN 201296782Y
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- boiler
- plenum chamber
- hot blast
- oil
- antisepsis
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The utility model relates to a preservation device for a large-sized industrial gas bag boiler, in particularly a boiler stop hot blast antisepsis preservation device for preservation the industrial boiler in stop period. The device includes an oil-water filter, an air electrical heater and a plenum chamber, the oil-water filter inlet connects with an air compressor, the oil-water filter outlet connects with the plenum chamber after passing through the air electrical heater, some exhaust pipes are set on the plenum chamber. The boiler stop hot blast antisepsis preservation device has simple structure and reliable operation which can increase wearability in the boiler stop period.
Description
Technical field
The utility model relates to a kind of maintain equipment of large scale industry gas bag boiler, specifically is the anticorrosion care device of boiler shutdown hot blast that a kind of Industrial Boiler that is used for to furnace shutdown period maintains.
Background technology
Industrial Boiler has been widely used in each department of the national economic development as a kind of heating power bearing device, is more and more paid attention to by the people in its security and work-ing life simultaneously.In recent years, in order to adapt to the demand of urban development, for environment protection; for save energy, each big cities and counties, the whole nation have adopted central heating, the just progressively ascending renewal of boiler; it is important that the importance of boiler also more and more seems, security and work-ing life are more and more paid attention to by people.
Boiler is stopped using or when being in stand-by state, outside air will inevitably enter in the boiler steam and water circuit in a large number, though boiler discharges water, but on the boiler tube internal surface, often adhere to water membrane because of making moist, airborne oxygen just is dissolved in this moisture film, make moisture film be full of dissolved oxygen, thereby cause metallic corrosion, this corrosion is very big to the hazardness of the boiler of stopping using.If when on the Boiler Metallic surface salt crust that can be dissolved in moisture film being arranged, then corrodibility is stronger, its corrosion speed is generally faster than run duration, there is the erosion and the corrosion of cigarette ash slag the body of heater outside, as maintain badly, the corrosion of furnace shutdown period is often even more serious than when operation, therefore, strengthen the maintaining work of furnace shutdown period, be significant.
At present, the maintaining behind the boiler shutdown is divided into the anticorrosion maintenance in the outside and pot of body of heater, and the anticorrosion maintenance in the pot is divided into two kinds of dry preservation and wet method maintenances by furnace outage time length.
The wet method maintenance adopts inner soda solution grouting to add outside siccative: after the blowing out, do not bleed off stove water (the most handy condensed water of stove water, secondly available original stove water is softening water once more), regularly add lye and tertiary sodium phosphate by balling iron to system, make circulating water PH value remain on 10-12.Start recycle pump every day 1 time, each about 10min of Running pump time.If system's lack of water is in time opened small pump and is replenished deaerated water.
Dry preservation: isolated extraneous water or steam enter boiler internal, put into siccative, guarantee the stove inner drying, thereby reach the water existence condition of eliminating boiler corrosion.
Can there be following problem in wet method maintenance and dry preservation when operation:
Wet method maintenance: owing to contain the carbonic acid gas of oxygen and water containing free in the pot water, and iron content ionic incrustation scale exists, and seriously aggravated the corrosion that metal contains internal surface.
Dry preservation: when boiler carries out rotproofing, have a lot of defectives in operation: each valve closes is not tight; Directly contact the Boiler Metallic surface; The boiler body oven dry thoroughly causes the siccative of adding to form the suction state of saturation in very short time, and siccative is not checked replacing for a long time, causes siccative to lose efficacy, and causes boiler corrosion still to occur.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of simple in structure, reliable, can improve the anticorrosion care device of boiler shutdown hot blast of the corrosion resistant ability during the boiler shutdown.
The anticorrosion care device of the utility model institute boiler shutdown hot blast includes oil and water filters, electric airheater and plenum chamber, the inlet of described oil and water filters is connected with air compressor machine by the air inlet variable valve, the outlet of oil and water filters is connected with plenum chamber through behind the electric airheater, and plenum chamber is provided with several vapor pipes.The bottom of described oil and water filters and plenum chamber is provided with drain pipe and drain valve.Also be provided with the tensimeter and the thermopair that are connected in the Controlling System on the described plenum chamber.
The utility model is simple in structure, reliable.It utilizes air compressor machine to carry source of the gas, after oil and water filters is removed impurity, moisture content, oil content, with electric airheater pressurized air is heated to certain temperature, then it is sent into the position that the boiler systems domestic demand is done the protection against corrosion maintenance, to reach the purpose of anticorrosion maintenance.Particularly superheater, reheater, water wall, economizer etc. there is good dry maintenance effect.
Description of drawings
Fig. 1 is the structure principle chart of the utility model embodiment.
Embodiment
As shown in the figure; in the device operational process of the present utility model; the pressurized air of being sent by air compressor machine enters main oil and water filters 1 through air inlet variable valve F1; remove impurity; moisture; after the oil content; enter two-stage electric airheater 2 through under meter L again; after the electric airheater heating, send into plenum chamber 3; by several vapor pipes 4 on the plenum chamber heat of compression air is sucked the suitable position of boiler (as superheater then; reheater outlet header etc.); again from the boiler suitable position (as each drain pipe of superheater header; blowdown main; economizer inlet header offlet etc.) blow out; make the band that pumps into press warm air in generator tube, to form a complete convection system; utilize air pressure that remaining moisture content in the system is blown out; the surplus water of part blows out after by the heating evaporation of burner hearth waste heat and warm air, to reach the purpose that dries up dry-run protection.The bottom of oil and water filters 1 and plenum chamber 3 is provided with drain pipe and drain valve (F6, F7), is used for the moisture content of cohesion is discharged.Also be provided with the tensimeter P and the thermopair T that are connected in the Controlling System on the described plenum chamber, be used for providing the actual parameter data for Controlling System.Also be provided with stopping valve F2 between the two-stage electric airheater 2.
Claims (3)
1, the anticorrosion care device of a kind of boiler shutdown hot blast, it is characterized in that: it includes oil and water filters (1), electric airheater (2) and plenum chamber (3), the inlet of described oil and water filters is connected with air compressor machine by air inlet variable valve (F1), the outlet of oil and water filters is connected with plenum chamber through behind the electric airheater, and plenum chamber is provided with several vapor pipes (4).
2, the anticorrosion care device of boiler shutdown hot blast according to claim 1 is characterized in that: the bottom of oil and water filters (2) and plenum chamber (3) is provided with drain pipe and drain valve.
3, the anticorrosion care device of boiler shutdown hot blast according to claim 1 and 2 is characterized in that: also be provided with the tensimeter (P) and the thermopair (T) that are connected in the Controlling System on the plenum chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202178526U CN201296782Y (en) | 2008-12-03 | 2008-12-03 | Boiler stop hot blast antisepsis preservation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202178526U CN201296782Y (en) | 2008-12-03 | 2008-12-03 | Boiler stop hot blast antisepsis preservation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201296782Y true CN201296782Y (en) | 2009-08-26 |
Family
ID=41042756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202178526U Expired - Fee Related CN201296782Y (en) | 2008-12-03 | 2008-12-03 | Boiler stop hot blast antisepsis preservation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201296782Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369280A (en) * | 2016-11-25 | 2017-02-01 | 江苏中能电力设备有限公司 | Fast steam turbine starting device |
| CN109908714A (en) * | 2019-04-11 | 2019-06-21 | 西安热工研究院有限公司 | High-pressure dry air maintenance system and method for water vapor system of power station |
| CN113137852A (en) * | 2021-04-23 | 2021-07-20 | 华能(浙江)能源开发有限公司玉环分公司 | Air drying method for water-washed low-temperature economizer in boiler flue gas treatment system |
-
2008
- 2008-12-03 CN CNU2008202178526U patent/CN201296782Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369280A (en) * | 2016-11-25 | 2017-02-01 | 江苏中能电力设备有限公司 | Fast steam turbine starting device |
| CN109908714A (en) * | 2019-04-11 | 2019-06-21 | 西安热工研究院有限公司 | High-pressure dry air maintenance system and method for water vapor system of power station |
| CN109908714B (en) * | 2019-04-11 | 2024-01-23 | 西安热工研究院有限公司 | High-pressure dry air maintenance system and maintenance method for water vapor system of power station |
| CN113137852A (en) * | 2021-04-23 | 2021-07-20 | 华能(浙江)能源开发有限公司玉环分公司 | Air drying method for water-washed low-temperature economizer in boiler flue gas treatment system |
| CN113137852B (en) * | 2021-04-23 | 2022-05-17 | 华能(浙江)能源开发有限公司玉环分公司 | Air drying method for water-washed low-temperature economizer in boiler flue gas treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20111203 |