CN201662056U - Water spraying device of desuperheater - Google Patents
Water spraying device of desuperheater Download PDFInfo
- Publication number
- CN201662056U CN201662056U CN2009202144543U CN200920214454U CN201662056U CN 201662056 U CN201662056 U CN 201662056U CN 2009202144543 U CN2009202144543 U CN 2009202144543U CN 200920214454 U CN200920214454 U CN 200920214454U CN 201662056 U CN201662056 U CN 201662056U
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- CN
- China
- Prior art keywords
- flange
- outer tube
- desuperheater
- ejecting device
- water spraying
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a water spraying device of a desuperheater, which comprises a protective casing, an outer casing, a flange, a flange cover, a stud bolt, a nut and a spray head device, wherein the outer casing is arranged on a cylinder body; the upper part of the outer casing is welded with the flange; the spray head device is connected with the flange cover and is arranged in the cylinder body; and the flange cover is connected with the flange through the stud bolt and the nut. The water spraying device is characterized in that the protective casing is arranged outside the water spraying device. The utility model has the advantages that the spray head device is convenient to check and replace and not easy to break off.
Description
Technical field
The utility model relates to a kind of desuperheater spray device, is used for the boiler reheater system in power plant, belongs to direct-contact desuperheater device technique field.
Background technology
Attemperator is to be used for the important device of steam regulation boiler steam temperature.In the thermal power plant,, can make parts damages such as boiler turbine or cause a serious accident if there is not attemperator just the vapor (steam) temperature of boiler export cannot be controlled in the rated range.The adjusting of vapor (steam) temperature can be divided into two big classes: fume side is regulated and steam side is regulated.Direct-contact desuperheater is the main means of steam side steam regulation temperature.
As shown in Figure 1, it is former boiler reheat system direct-contact desuperheater apparatus structure schematic diagram commonly used, form by ejecting device 1, outer tube 2, flange 3, blind flange 4, stud 5, nut 6, outer tube 2 is installed on the cylindrical shell, outer tube 2 tops and flange 3 welding, ejecting device 1 and blind flange 4 welding stretch in the cylindrical shell, and the shower nozzle direction is consistent with airflow direction.Shortcoming is: cantilever vibration can take place in ejecting device during operation, causes the water injector fracture easily, and desuperheating water is from the fracture ejection, and attemperator lining and cylindrical shell can form crackle because of thermal (temperature difference) stress; And if the shower nozzle of fracture can cause booster with air-flow inflow hot side pipe.
Summary of the invention
The purpose of this utility model provides a kind of spray desuperheating device of using safely guaranteed.
For realizing above purpose; the technical solution of the utility model provides a kind of desuperheater spray device; comprise outer tube, flange, blind flange, stud, nut and ejecting device; outer tube is located on the cylindrical shell, outer tube top and flange welding, and ejecting device is located in outer tube and the flange; one end of ejecting device is located in the cylindrical shell; blind flange is connected with flange by stud, nut, it is characterized in that ejecting device is provided with protective casing outward.
Described protective casing bottom is provided with gripper shoe.
The utility model adopts flange to connect water injector, can check the replacing water injector easily; Install heavy casing additional, increased the rigidity and the intensity of structure, can stop or weaken the cantilever vibration of sparge pipe, thereby greatly reduce sparge pipe because the probability of fracture takes place in vibration.
The utility model has the advantages that:
A. the ejecting device inspection is changed conveniently;
B. ejecting device easy fracture not.
Description of drawings
Fig. 1 is former spray desuperheating apparatus structure schematic diagram;
Fig. 2 is a kind of spray desuperheating apparatus structure schematic diagram;
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 2, be a kind of spray desuperheating apparatus structure schematic diagram, described a kind of spray desuperheating device is made up of outer tube 2, flange 3, blind flange 4, stud 5, nut 6, protective casing 7 and ejecting device 8.
Claims (2)
1. desuperheater spray device; comprise outer tube (2), flange (3), blind flange (4), stud (5), nut (6) and ejecting device (8); outer tube (2) is located on the cylindrical shell; outer tube (2) top and flange (3) welding; ejecting device (8) is located in outer tube (2) and the flange (3); one end of ejecting device (8) is located in the cylindrical shell; blind flange (4) is connected with flange (3) by stud (5), nut (6); it is characterized in that the outer protective casing (7) that is provided with of ejecting device (8).
2. a kind of desuperheater spray device according to claim 1 is characterized in that, described protective casing (7) bottom is provided with gripper shoe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202144543U CN201662056U (en) | 2009-11-30 | 2009-11-30 | Water spraying device of desuperheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202144543U CN201662056U (en) | 2009-11-30 | 2009-11-30 | Water spraying device of desuperheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662056U true CN201662056U (en) | 2010-12-01 |
Family
ID=43232473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202144543U Expired - Lifetime CN201662056U (en) | 2009-11-30 | 2009-11-30 | Water spraying device of desuperheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662056U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506414A (en) * | 2011-11-02 | 2012-06-20 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of superheater of boiler of 600MW and temperature reducing method |
| CN102650425A (en) * | 2012-05-30 | 2012-08-29 | 上海锅炉厂有限公司 | Composite bushing type water spraying desuperheater |
| CN107606597A (en) * | 2017-10-09 | 2018-01-19 | 上海锅炉厂有限公司 | Sleeve pipe A seating direct-contact desuperheater |
-
2009
- 2009-11-30 CN CN2009202144543U patent/CN201662056U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506414A (en) * | 2011-11-02 | 2012-06-20 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of superheater of boiler of 600MW and temperature reducing method |
| CN102506414B (en) * | 2011-11-02 | 2015-11-04 | 哈尔滨锅炉厂有限责任公司 | 600MW boiler superheater attemperator and desuperheat method |
| CN102650425A (en) * | 2012-05-30 | 2012-08-29 | 上海锅炉厂有限公司 | Composite bushing type water spraying desuperheater |
| CN107606597A (en) * | 2017-10-09 | 2018-01-19 | 上海锅炉厂有限公司 | Sleeve pipe A seating direct-contact desuperheater |
| CN107606597B (en) * | 2017-10-09 | 2023-09-22 | 上海锅炉厂有限公司 | Sleeve seat type water spraying desuperheater |
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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: 20101201 |