CN201826905U - Anti-corrosion device for adjusting steam-extraction type single-cylinder turbine - Google Patents
Anti-corrosion device for adjusting steam-extraction type single-cylinder turbine Download PDFInfo
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- CN201826905U CN201826905U CN2010205826157U CN201020582615U CN201826905U CN 201826905 U CN201826905 U CN 201826905U CN 2010205826157 U CN2010205826157 U CN 2010205826157U CN 201020582615 U CN201020582615 U CN 201020582615U CN 201826905 U CN201826905 U CN 201826905U
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- steam
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- heat exchanger
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- single casing
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Abstract
The utility model relates to an anti-corrosion device, in particular to an anti-corrosion device for a steam-extraction type single-cylinder turbine. The cylinder anti-corrosion device for the steam-extraction type single-cylinder turbine comprises a heat exchanging chamber which is provided with an air inlet and an air outlet, wherein a blast blower is arranged at the air inlet; the air outlet is provided with a gas pipeline that is communicated with a three-section steam extraction pipeline of a water supply heat returning system of the adjusting steam-extraction type single-cylinder turbine; and the heat exchanging chamber is internally provided with a heat exchanger that is used for providing heat. In the utility model, the metal surfaces of all parts in a cylinder and the internal walls of connecting pipelines can be kept dry, so as to avoid rust generation. The anti-corrosion device has the advantages of greatly simplifying the anti-corrosion measures of the cylinder and reducing the maintenance cost of a unit.
Description
Technical field
The utility model relates to a kind of erosion protection system, is specifically related to a kind of cylinder anti-corrosive apparatus of adjusting the steam-extracting type single casing steam turbine.
Background technique
The water supply heat back system that south vapour CC60MW adjusts the steam-extracting type single casing steam turbine is provided with one section extraction line, two sections extraction lines, three sections extraction lines, four sections extraction lines, five sections extraction lines and six sections extraction lines.
After adjusting the steam-extracting type single casing steam turbine and shutting down, the air owing to can bleed in antero posterior axis envelope and each hydrophobic place of extraction line is reduced in the process of room temperature in the temperature of the cylinder of steam turbine, and steam turbine sound blade, dividing plate, vapour condenser and extraction line can get rusty.Sound blade, dividing plate get rusty and can cause being used to adjust the rotating barrier bite of industrial pressure of steam supply, if bite occurs can't be movable the time, need open the cylinder rust cleaning, and this rust cleaning process workload is big, and the time is long; Vapour condenser and extraction line get rusty and can cause in start process a large amount of iron rust to enter during vapour condenser heat advances, thereby stop up the condensate pump inlet screen, cause condensate pump declines of exerting oneself, and the increase maintenance workload influences water of condensation water quality, also can influence the life-span of equipment.
In practical work process, after single cylinder can be adjusted the extraction turbine shutdown, power plant all is with cylinder usually and extraction line is hydrophobic drained, and no longer takes other anti-corrosion measures, and this measure can keep equipment shutting down non-corrosive in ten days.But when the shutdown two weeks was above, each metal part surface and extraction line internal surface in the cylinder all can produce corrosion.Therefore, producer requires the shutdown below three months, should stop up external gland.Shutdown more than three months must be pulled down the big lid of cylinder, is coated with the protection oil reservoir on the flow passage component surface.
Yet when surpassed three months dead time, the worker must pull down the big lid of cylinder, was coated with the protection oil reservoir on the flow passage component surface and carried out anticorrosionly, and this anti-corrosion measure is complicated, and labor intensity is big, and the length that expends time in has improved unit maintenance cost.
In the prior art, also do not adjust the cylinder anti-corrosive apparatus of steam-extracting type single casing steam turbine.
The model utility content
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of cylinder anti-corrosive apparatus that can effectively prevent the adjustment steam-extracting type single casing steam turbine of cylinder corrosion is provided, and the utility model has been simplified the cylinder anti-corrosion measure greatly, has reduced the unit maintenance cost.
The purpose of this utility model realizes by following scheme: a kind of anti-corrosive apparatus of adjusting the steam-extracting type single casing steam turbine, it is characterized in that: the cylinder anti-corrosive apparatus of described adjustment steam-extracting type single casing steam turbine comprises heat exchanger, this heat exchanger is provided with suction port and relief opening, described suction port is provided with blower, described relief opening is provided with three sections gas pipelines that extraction line is connected with the water supply heat back system of adjusting the steam-extracting type single casing steam turbine, is provided with the heat exchanger that is used to provide heat in described heat exchanger.
Described heat exchanger is a surface-type heat exchanger.
Described surface-type heat exchanger links to each other with the steam suppling tube road, and the steam suppling tube road is provided with first air intake valve that is used to control air inflow.
Described gas pipeline is provided with second air intake valve of the air inflow that is used to control three sections extraction lines.
Advantage of the present utility model is: the utility model can be so that metal surface and connecting tube inwall drying everywhere in the cylinder, and metal surface and connecting tube inwall produce corrosion thereby avoid in the cylinder everywhere.Cylinder anti-corrosive apparatus by adjustment steam-extracting type single casing steam turbine of the present utility model has been simplified the cylinder anti-corrosion measure greatly, has reduced the unit maintenance cost.
Description of drawings
Fig. 1 is the structural representation that the cylinder anti-corrosive apparatus of adjustment steam-extracting type single casing steam turbine of the present utility model cooperates with adjustment steam-extracting type single casing steam turbine.
Description of reference numerals:
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, the water supply heat back system of adjusting steam-extracting type single casing steam turbine 13 is provided with one section extraction line 7, two sections extraction lines 8, three sections extraction lines 9, four sections extraction lines 10, five sections extraction lines 11 and six sections extraction lines 12.
The cylinder anti-corrosive apparatus of adjustment steam-extracting type single casing steam turbine of the present utility model comprises heat exchanger 1, this heat exchanger 1 is provided with suction port and relief opening, suction port is provided with blower 2, relief opening is provided with the gas pipeline 3 that is connected with three sections extraction lines 9 of the water supply heat back system of adjusting steam-extracting type single casing steam turbine 13, is provided with the surface-type heat exchanger 4 that is used to provide heat in heat exchanger 1.Surface-type heat exchanger 4 links to each other with the steam suppling tube road, and the steam suppling tube road is provided with first air intake valve 5 that is used to control air inflow.Gas pipeline 3 is provided with second air intake valve 6 that is used to control air inflow.
When work, by blower 2 air is blown into heat exchanger 1, air and surface-type heat exchanger 4 carry out exchange heat in heat exchanger 1, make atmosphere temperature rising to 80-100 ℃, then, air enters three sections extraction lines 9 of the water supply heat back system of adjusting steam-extracting type single casing steam turbine 13, to the cylinder dividing plates at different levels of adjusting steam-extracting type single casing steam turbine 13 and blade diffusion, open the safety valve at cylinder top, hot air is spread to cylinder two, and enter the extraction line of next cylinder, and hot air makes in the cylinder metal surface and connecting tube inwall drying everywhere, metal surface and connecting tube inwall produce corrosion thereby avoid in the cylinder everywhere.
In the utility model, first air intake valve 5 of steam suppling tube road setting is to enter the steam flow of surface-type heat exchanger 4 in order better to control, thereby better controls the temperature of air in the heat exchanger 1.In addition, in the utility model, can use other heat exchangers, as long as can carry out exchange heat with air.
Should be noted that at last; above content is only in order to the explanation the technical solution of the utility model; but not to the restriction of the utility model protection domain; although this embodiment part has been done to explain to the utility model; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
Claims (4)
1. anti-corrosive apparatus of adjusting the steam-extracting type single casing steam turbine, it is characterized in that: the cylinder anti-corrosive apparatus of described adjustment steam-extracting type single casing steam turbine comprises heat exchanger, this heat exchanger is provided with suction port and relief opening, described suction port is provided with blower, described relief opening is provided with three sections gas pipelines that extraction line is connected with the water supply heat back system of adjusting the steam-extracting type single casing steam turbine, is provided with the heat exchanger that is used to provide heat in described heat exchanger.
2. according to the anti-corrosive apparatus of the described adjustment steam-extracting type of claim 1 single casing steam turbine, it is characterized in that: described heat exchanger is a surface-type heat exchanger.
3. according to the anti-corrosive apparatus of the described adjustment steam-extracting type of claim 2 single casing steam turbine, it is characterized in that: described surface-type heat exchanger links to each other with the steam suppling tube road, and the steam suppling tube road is provided with first air intake valve that is used to control air inflow.
4. according to the anti-corrosive apparatus of claim 1,2 or 3 described adjustment steam-extracting type single casing steam turbines, it is characterized in that: described gas pipeline is provided with second air intake valve of the air inflow that is used to control three sections extraction lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205826157U CN201826905U (en) | 2010-10-29 | 2010-10-29 | Anti-corrosion device for adjusting steam-extraction type single-cylinder turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205826157U CN201826905U (en) | 2010-10-29 | 2010-10-29 | Anti-corrosion device for adjusting steam-extraction type single-cylinder turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201826905U true CN201826905U (en) | 2011-05-11 |
Family
ID=43965447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205826157U Expired - Lifetime CN201826905U (en) | 2010-10-29 | 2010-10-29 | Anti-corrosion device for adjusting steam-extraction type single-cylinder turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201826905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153454A (en) * | 2021-03-15 | 2021-07-23 | 威立雅（哈尔滨）热电有限公司 | Anticorrosive drying device in combined heat and power generation steam turbine summer |
-
2010
- 2010-10-29 CN CN2010205826157U patent/CN201826905U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153454A (en) * | 2021-03-15 | 2021-07-23 | 威立雅（哈尔滨）热电有限公司 | Anticorrosive drying device in combined heat and power generation steam turbine summer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |