CN102650425A - Composite bushing type water spraying desuperheater - Google Patents
Composite bushing type water spraying desuperheater Download PDFInfo
- Publication number
- CN102650425A CN102650425A CN2012101745845A CN201210174584A CN102650425A CN 102650425 A CN102650425 A CN 102650425A CN 2012101745845 A CN2012101745845 A CN 2012101745845A CN 201210174584 A CN201210174584 A CN 201210174584A CN 102650425 A CN102650425 A CN 102650425A
- Authority
- CN
- China
- Prior art keywords
- pipe
- nozzle
- composite
- composite bushing
- 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.)
- Granted
Links
Images
Landscapes
- Nozzles (AREA)
Abstract
The invention provides a composite bushing type water spraying desuperheater which comprises a cylinder body and an inner bushing arranged inside the cylinder body, wherein a body pipe seat is arranged above one end of the cylinder body. The composite bushing type water spraying desuperheater is characterized in that a spray nozzle strengthened protection pipe is coaxially arranged inside the body pipe seat; an outer-layer pipe mouth of the composite seat pipe is connected with the spray nozzle strengthened protection pipe; the lower end of an inner-layer pipe mouth of the composite pipe seat is arranged inside the upper end of the outer-layer pipe mouth of the composite pipe seat; the upper end of a spray nozzle pipe which is coaxially arranged inside the spray nozzle strengthened protection pipe is connected with the inner-layer pipe mouth of the composite pipe seat; and a fixed support block is arranged below the spray nozzle pipe. According to the composite bushing type water spraying desuperheater disclosed by the invention, the defects in the prior art are overcome; due to the adoption of the sealed composite bushing seat and the spray nozzle strengthened protection pipe, the application range of the composite bushing type water spraying desuperheater is widened and the safety and the reliability of the operation process of the composite bushing type water spraying desuperheater are enhanced. The composite bushing type water spraying desuperheater has the advantages of simple structure, convenience in manufacture and assembly and convenience in maintenance.
Description
Technical field
The present invention relates to a kind of composite bushing formula direct-contact desuperheater, be used for station boiler again, superheater system, belong 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 can't the vapor (steam) temperature of boiler export be controlled in the rated range.The adjusting of vapor (steam) temperature is divided into two big types: fume side is regulated and steam side is regulated.Direct-contact desuperheater is the main means of steam side steam regulation temperature.
The flanged formula spray desuperheating of tradition single tube seat apparatus is as shown in Figure 1; In direct-contact desuperheater, be provided with the neck bush 2 of thin-walled; Its objective is incomplete desuperheat water droplet of avoiding atomizing to the heavy wall header or connect the thermal shock of inner-walls of duct, when thicker desuperheating water drops onto 2 last times of neck bush, because neck bush 2 accumulation of heat inertia are little; Water droplet is gasified rapidly, and the thermal stress that on neck bush 2, produces is little.Neck bush 2 is connected with cylindrical shell 1 with set bolt 4 near former nozzle place; Former blast tube 5 directly links to each other with body base 6 through the flange auxiliary connection of being made up of flange 7, blind flange 8, stud 9 and nut 10, and former blast tube 5 directions are consistent with attemperator body 1 interior airflow direction.
There is following shortcoming in the flanged formula direct-contact desuperheater of tradition single tube seat: cantilever vibration can take place in spray nozzle device during operation; Cause the spray nozzle device fracture easily; Desuperheating water sprays from breaks; Attemperator lining and cylindrical shell can form crackle because of thermal (temperature difference) stress, and if the nozzle head of fracture flow into the hot side pipe with air-flow, can cause booster.The flange auxiliary connection of being made up of flange 7, blind flange 8, stud 9 and nut 10 is easy to generate leakage when attemperator moves, be not suitable for using in the direct-contact desuperheater under the HTHP running status.
Summary of the invention
The purpose of this invention is to provide a kind of safe and reliable, composite bushing formula spray desuperheating device of making things convenient for processing and manufacturing and assembling maintenance.
In order to achieve the above object; Technical scheme of the present invention provides a kind of composite bushing formula direct-contact desuperheater; Comprise cylindrical shell and be located at its inner neck bush that the body base is located at cylindrical shell one end top, it is characterized in that: the inner coaxial nozzle that is provided with of said body base is strengthened pillar; The outer one deck mouth of pipe of compound base is strengthened pillar with nozzle and is connected, and it is inner that the outer one deck mouth of pipe of compound base upper end is located in one deck mouth of pipe lower end in the compound base; Strengthen one deck mouth of pipe in the inner compound base of blast tube upper end connection of pillar with being located in nozzle, the blast tube below is provided with fixed support block.
Preferably, said blast tube is the bourdon's tube shape that has porous of cecum for end.
Preferably, said blast tube lower end is provided with nozzle.
Preferably, said nozzle is at least 1.
Preferably, said fixed support block is the location ring-type.
Among the present invention; The outer one deck mouth of pipe of one deck mouth of pipe and compound base is combined into the composite bushing seat of good airproof performance in the compound base; Not only avoided the leakage defect and the low-temp low-pressure of former flange connection to use limitation; Improved the scope of application of direct-contact desuperheater design temperature and design pressure, and effectively nozzle has been strengthened the scouring force that recoil strength that pillar bears and steam brings and be passed on body base and the cylindrical shell.Nozzle is strengthened pillar protection and fixed nozzle and coupled blast tube effectively; Recoil strength when strengthening nozzle operation; Play a supporting role; The possibility of spray nozzle device cantilever vibration guarantees that spray nozzle device does not rupture when also having avoided operation, can also avoid steam directly nozzle and blast tube to be washed away.
Device provided by the invention has overcome the deficiency of prior art, strengthens pillar through the composite bushing seat and the nozzle of sealing, has improved the scope of application of direct-contact desuperheater; The security and the reliability of direct-contact desuperheater running have been strengthened; Simple in structure, make easy to assemblyly, be convenient to safeguard.
Description of drawings
Fig. 1 is the flanged formula direct-contact desuperheater of a traditional single tube seat structural representation;
Fig. 2 is a kind of composite bushing formula direct-contact desuperheater structural representation provided by the invention;
Fig. 3 is that nozzle is strengthened pillar and the outer one deck nozzle structure sketch map of compound base in the present embodiment;
Description of reference numerals
The 1-cylindrical shell; The 2-neck bush; The 3-carrying bolt; The 4-set bolt; The former blast tube of 5-; 6-body base; The 7-flange; The 8-blind flange; The 9-stud; The 10-nut; One deck mouth of pipe in the compound base of 11-; The outer one deck mouth of pipe of the compound base of 12-; The 13-nozzle is strengthened pillar; The 14-nozzle; The 15-fixed support block; The 16-blast tube.
The specific embodiment
For making the present invention more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
Fig. 2 is a kind of composite bushing formula direct-contact desuperheater structural representation provided by the invention, and described a kind of composite bushing formula direct-contact desuperheater is strengthened pillar 13, fixed support block 15 and blast tube 16 and formed by one deck mouth of pipe 11, the outer one deck mouth of pipe 12 of compound base, nozzle in cylindrical shell 1, neck bush 2, carrying bolt 3, set bolt 4, body base 6, the compound base.
Cylindrical shell 1 a built-in neck bush 2, neck bush 2 is located through set bolt 4 fixing supports with carrying bolt 3.Neck bush 2 one ends are fixed on the attemperator axial direction through set bolt 4, and the other end of neck bush 2 is free ends, can free wxpansion.In other appropriate locations of neck bush 2, utilize radially supporting and locating of 3 pairs of neck bush of carrying bolt again.Body base 6 is welded in cylindrical shell 1 one ends, and neck bush has the hole that is complementary in body base 6 relevant positions.
The composite bushing seat is to be combined by the outer one deck mouth of pipe 12 of one deck mouth of pipe in the compound base 11 and compound base.During assembling; Blast tube 16 upper ends connect one deck mouth of pipe 11 in the compound base, and blast tube 16 is the bourdon's tube shape that has porous of cecum for terminal, if the reheat system direct-contact desuperheater; Blast tube 16 lower ends also connect nozzle 14; The quantity of nozzle 14 is at least 1, can use many nozzles 14 according to the increase of injection flow rate series connection, and subordinate nozzle 14 ends are cecum.
In conjunction with Fig. 3, nozzle is strengthened pillar 13 lower ends and is had breach, so that coaxial assembling nozzle 14, nozzle is strengthened pillar 13 and is connected with the outer one deck mouth of pipe 12 of compound base.The assembly that the interior one deck pipe 11 of compound base and nozzle 14, blast tube 16 assemble is inserted in the outer one deck mouth of pipe 12 of compound base again strengthens interior welding of assembly that pillar 13 combines with nozzle; Fixed support block 15 effectively locking nozzle 14 backs is welded with nozzle reinforcement pillar 13 mutually, makes nozzle 14 difficult drop-offs.The composite bushing seat that is equipped with nozzle 14 elements such as grade welds with attemperator body base 6 again.It is consistent with attemperator body 1 interior airflow direction to notice during assembling guaranteeing that nozzle 14, nozzle are strengthened pillar 13 directions.
Claims (5)
1. composite bushing formula direct-contact desuperheater; Comprise cylindrical shell (1) and be located at its inner neck bush (2); Body base (6) is located at cylindrical shell (1) one end top; It is characterized in that: the inner coaxial nozzle that is provided with of said body base (6) is strengthened pillar (13), and the outer one deck mouth of pipe (12) of compound base is strengthened pillar (13) with nozzle and is connected, and it is inner that the outer one deck mouth of pipe (12) of compound base upper end is located in one deck mouth of pipe (11) lower end in the compound base; Strengthen one deck mouth of pipe (11) in the inner compound base of blast tube (16) upper end connection of pillar (13) with being located in nozzle, blast tube (16) below is provided with fixed support block (15).
2. a kind of composite bushing formula direct-contact desuperheater as claimed in claim 1 is characterized in that: said blast tube (16) is the bourdon's tube shape that has porous of cecum for end.
3. a kind of composite bushing formula direct-contact desuperheater as claimed in claim 1 is characterized in that: said blast tube (16) lower end is provided with nozzle (14).
4. a kind of composite bushing formula direct-contact desuperheater as claimed in claim 3, it is characterized in that: said nozzle (14) is at least 1.
5. a kind of composite bushing formula direct-contact desuperheater as claimed in claim 1 is characterized in that: said fixed support block (15) is the location ring-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210174584.5A CN102650425B (en) | 2012-05-30 | 2012-05-30 | Composite bushing type water spraying desuperheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210174584.5A CN102650425B (en) | 2012-05-30 | 2012-05-30 | Composite bushing type water spraying desuperheater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102650425A true CN102650425A (en) | 2012-08-29 |
| CN102650425B CN102650425B (en) | 2014-05-14 |
Family
ID=46692497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210174584.5A Active CN102650425B (en) | 2012-05-30 | 2012-05-30 | Composite bushing type water spraying desuperheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102650425B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606597A (en) * | 2017-10-09 | 2018-01-19 | 上海锅炉厂有限公司 | Sleeve pipe A seating direct-contact desuperheater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5304327A (en) * | 1992-07-13 | 1994-04-19 | Welker Engineering, Inc. | Mercaptan injection apparatus for use with a pipeline |
| CN201662056U (en) * | 2009-11-30 | 2010-12-01 | 上海锅炉厂有限公司 | Water spraying device of desuperheater |
| CN202647721U (en) * | 2012-05-30 | 2013-01-02 | 上海锅炉厂有限公司 | Composite bushing type spray desuperheater |
-
2012
- 2012-05-30 CN CN201210174584.5A patent/CN102650425B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5304327A (en) * | 1992-07-13 | 1994-04-19 | Welker Engineering, Inc. | Mercaptan injection apparatus for use with a pipeline |
| CN201662056U (en) * | 2009-11-30 | 2010-12-01 | 上海锅炉厂有限公司 | Water spraying device of desuperheater |
| CN202647721U (en) * | 2012-05-30 | 2013-01-02 | 上海锅炉厂有限公司 | Composite bushing type spray desuperheater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102650425B (en) | 2014-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202647721U (en) | Composite bushing type spray desuperheater | |
| CN101644369A (en) | A connector for connecting between a reaction pipe and a cooling pipe as well as a method for connecting a reaction pipe to a cooling pipe | |
| CN107606597B (en) | Sleeve seat type water spraying desuperheater | |
| CN106098116A (en) | A kind of passive PWR nuclear power plant reactor coolant loop is arranged | |
| CN202769637U (en) | Composite bushing type direct contact desuperheater | |
| CN102650425B (en) | Composite bushing type water spraying desuperheater | |
| CN102588947A (en) | Temperature reducer of 350MW tangential firing supercritical boiler reheater and temperature reducing method of temperature reducer | |
| EP2115352B1 (en) | Desuperheater | |
| CN207514891U (en) | A kind of casing A seating direct-contact desuperheater | |
| CN202303340U (en) | 600 MW boiler superheater desuperheater | |
| CN204213898U (en) | A kind of direct-contact desuperheater for thermal power plant | |
| CN209672302U (en) | A kind of injection boiler spray desuperheating jet pipe and cooling structure | |
| CN202939074U (en) | Composite sleeve type sampling device | |
| CN201540039U (en) | Condenser enabling DC furnace start-up drainage and low-voltage bypass to share energy dissipating device | |
| CN104534453A (en) | Cold wall type high-temperature and high-pressure superheater | |
| CN201662056U (en) | Water spraying device of desuperheater | |
| CN102506414B (en) | 600MW boiler superheater attemperator and desuperheat method | |
| CN201387001Y (en) | Vertical high pressure heater | |
| CN208349869U (en) | A kind of inlet tube structure of condensate water pot | |
| CN202032561U (en) | Flute pipe spray type attemperator | |
| CN215929540U (en) | Novel reheater desuperheater | |
| KR101976897B1 (en) | Superheater attemperator | |
| CN204460178U (en) | Cold wall type HTHP superheater | |
| CN203869023U (en) | Dual-supported spray type desuperheater for boilers | |
| CN106761973B (en) | Pressure single layer welds cylinder structure in a kind of steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |