CN107606597A - Sleeve pipe A seating direct-contact desuperheater - Google Patents
Sleeve pipe A seating direct-contact desuperheater Download PDFInfo
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- CN107606597A CN107606597A CN201710931942.5A CN201710931942A CN107606597A CN 107606597 A CN107606597 A CN 107606597A CN 201710931942 A CN201710931942 A CN 201710931942A CN 107606597 A CN107606597 A CN 107606597A
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- seating
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Abstract
The invention discloses a kind of sleeve pipe A seating direct-contact desuperheater, including cylinder, neck bush is provided with cylinder, the lower end of cylinder and body base is connected, it is characterized in that, nozzle is coaxially provided with inside described body base and strengthens pillar and blast tube, nozzle strengthens the outside that protective pipe sleeve is located at blast tube, body base upper end, nozzle strengthen pillar upper end and blast tube upper end respectively successively with the outer layer with the casing seat lower end of interior three-layer pipe mouth in outer, middle level is connected with the internal layer mouth of pipe, upper end tube nozzle with the casing seat of interior three-layer pipe mouth in outer connects with external water pipeline, the terminal part of blast tube is in cylinder, the terminal part of blast tube is provided with nozzle.The present invention strengthens pillar by the way that casing seat with interior three-layer pipe mouth in outer and nozzle is fully sealed, and improves the scope of application of direct-contact desuperheater, enhances the safety and reliability of direct-contact desuperheater running, simple in construction, manufacture is easy to assembly, is easy to safeguard.
Description
Technical field
The present invention relates to a kind of water spraying device of desuperheater, more particularly to a kind of sleeve pipe A seating direct-contact desuperheater, for power station
In boiler resuperheater system.
Background technology
Attemperator is the important device for adjusting steam boiler vapor (steam) temperature.In thermal power plant, if do not subtracted
Warm device cannot just control the vapor (steam) temperature of boiler export in rated range, can make the parts damages such as boiler turbine or cause
Major accident.The regulation of vapor (steam) temperature can be divided into two major classes：Fume side adjusts and steam tempering.Direct-contact desuperheater is steam side
Adjust the Main Means of vapor (steam) temperature.
As shown in figure 1, it is the flanged formula direct-contact desuperheater apparatus structure schematic diagram of boiler original single tube seat.In direct-contact desuperheater
Cylinder 1 in be provided with the neck bush 2 of thin-walled, the purpose is to avoid being atomized incomplete desuperheat water droplet to heavy wall header or connection
The thermal shock of inner-walls of duct, when thicker desuperheating water is dropped onto on neck bush 2, because the accumulation of heat inertia of neck bush 2 is small, make water droplet
Rapid gasification, caused thermal stress is little on neck bush 2.Neck bush 2 is connected at nozzle with fixing bolt 4 with cylinder 1,
Former blast tube 5 is directly connected by flange auxiliary connection with body base 6, direction and the interior air-flow direction one of cylinder 1 of former blast tube 5
Cause.Its shortcoming is：Cantilever vibration can occur for spray nozzle device during operation, easily cause spray nozzle device to be broken, and desuperheating water is from breaking part
Spray, neck bush 2 and cylinder 1 can form crackle because of thermal (temperature difference) stress；And if the nozzle head of fracture flows into hot facial canal with air-flow
Son, booster can be caused.By the flange auxiliary connection that flange 7, blind flange 8, stud 9 and nut 10 form in attemperator operation
Leakage is easily produced, and is not suitable for using in the direct-contact desuperheater under HTHP running status.
Traditional sleeve pipe A seating direct-contact desuperheater is formed by two compound base concatenations, and each compound base has interior
Outer two layers of mouth of pipe, nozzle will be strengthened by compound base by pillar and blast tube and be respectively connected with the form of connecting, it is filled
One layer of pipe in compound base, which is generally, with process is inserted in one layer of mouth of pipe outside compound base again with the component that nozzle, blast tube assemble
Strengthen welding in the component that combines of pillar with nozzle, be equipped with the compound sleeve bases of the elements such as nozzle again with attemperator body tube
Seat welding.This composite bushing A seating direct-contact desuperheater that is formed by two compound bases concatenations is complicated, compound sleeve base
Structural strength itself is low, the scope of application of design temperature and design pressure is low, and assembly process is cumbersome, is not easy to operate.
The content of the invention
The technical problem to be solved in the present invention is：Provide a kind of scope of application, simple in construction, easy to assembly, just of improving
In the sleeve pipe A seating direct-contact desuperheater safeguarded, high temperature resistance and crushing resistance are good, solves traditional sleeve pipe A seating direct-contact desuperheater
Complicated, the scope of application of low intensity, design temperature and design pressure is low, and assembly process is cumbersome, is not easy to operate, and is not suitable for
The problem of being used in direct-contact desuperheater under HTHP running status.
In order to solve the above-mentioned technical problem, the technical scheme is that providing a kind of sleeve pipe A seating direct-contact desuperheater,
Including cylinder, neck bush is provided with cylinder, the simplified lower end with body base is connected, it is characterised in that described body
Nozzle is coaxially provided with inside base and strengthens pillar and blast tube, nozzle strengthens the outside that protective pipe sleeve is located at blast tube, body base
Upper end, nozzle strengthen pillar upper end and blast tube upper end respectively successively with outer the casing seat lower end of interior three-layer pipe mouth it is outer
Layer, middle level are connected with the internal layer mouth of pipe, and the upper end tube nozzle with the casing seat of interior three-layer pipe mouth in outer connects with external water pipeline,
For the terminal part of blast tube in cylinder, the terminal part of blast tube is provided with nozzle.
Preferably, one end of described neck bush is fixed with cylinder on attemperator axial direction by fixing bolt and connected
Connect, the other end of neck bush is that can radially play what is supported and position in neck bush with the free end of free wxpansion
Opening position is connected by carrying bolt with cylinder.
Preferably, the lower end of described blast tube is provided with stationary positioned ring-type steel plate, stationary positioned ring-type steel plate and nozzle
Strengthen pillar connection.
Preferably, described stationary positioned ring-type steel plate is end fixed support block.
Preferably, described nozzle is strengthened inserting at least one piece of coaxial fixing steel plate between pillar and body base, coaxially
Fixing steel plate is coaxially fixed with body base；Coaxial fixing steel plate strengthens the circumferential uniform phase of pillar with nozzle and welds coaxial positioning.
Preferably, the quantity of described nozzle is at least 1.
Preferably, described nozzle, nozzle reinforcement pillar direction are consistent with the airflow direction in cylinder.
Preferably, the terminal part of described blast tube is in neck bush, and cylinder and neck bush are in the position of body base
Put place and be provided with perforate.
Preferably, the terminal part of described blast tube is outside the neck bush, and nozzle direction is against the opening of neck bush, cylinder
Body is provided with perforate in the opening position of body base.
Preferably, described blast tube is that end is that cecum is provided with porous fluted shape tubulose.
The present invention using a casing seat with interior three-layer pipe mouth in outer, inside and outside the casing seat three-layer pipe mouth respectively with body
The base mouth of pipe, the nozzle reinforcement pillar mouth of pipe are connected with the blast tube mouth of pipe and are combined into the assembled casing seat of good airproof performance, the casing seat
Bear high pressure weld bond and only have the outer one layer of mouth of pipe of casing seat to dock weld bond for one with body base, pair of remaining middle level and the internal layer mouth of pipe
It is no pressure welding mouth to connect weld bond.The leakage defect and low-temp low-pressure that not only avoid former flange connection use limitation,
Strengthen casing seat structural strength while simplifying design considerations, improve being applicable for direct-contact desuperheater design temperature and design pressure
Scope, and effectively by the scouring force that the nozzle recoil strength that is born of reinforcement pillar and steam zone come be transferred to body base and
On cylinder.Nozzle strengthen pillar can effectively protect with fixed nozzle and coupled blast tube, strengthen nozzle operation when
Recoil strength, to play a supporting role, it also avoid the possibility of spray nozzle device cantilever vibration during operation, it is ensured that spray nozzle device is not broken,
Steam can also be avoided directly to be washed away to nozzle and blast tube.The present invention is adapted to run at high temperature under high pressure, has preferable
High temperature resistance and crushing resistance.In assembling, only inside and outside the three-layer pipe mouth and blast tube of the casing seat, nozzle need to be strengthened shield
Pipe, attemperator body base weld successively, and operational sequence rationally facilitates, and improve efficiency of assembling.
The present invention strengthens pillar by the way that casing seat with interior three-layer pipe mouth in outer and nozzle is fully sealed, and improves spray
The scope of application of water attemperator, the safety and reliability of direct-contact desuperheater running is enhanced, simple in construction, manufacture assembling
It is convenient, it is easy to safeguard.
Brief description of the drawings
Fig. 1 is the flanged formula direct-contact desuperheater structural representation of traditional single tube seat；
Fig. 2 is a kind of structural representation for sleeve pipe A seating direct-contact desuperheater that blast tube one end is located in neck bush；
Fig. 3 is a kind of structural representation for sleeve pipe A seating direct-contact desuperheater that blast tube one end is located at outside neck bush；
Fig. 4 is the sectional view in A-A faces in Fig. 3.
Embodiment
To become apparent the present invention, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment 1
The present invention is a kind of sleeve pipe A seating direct-contact desuperheater, as shown in Fig. 2 it includes cylinder 1, in one built in cylinder 1
Bushing 2, neck bush 2 fixed by fixing bolt 4 and carrying bolt 3, is supported and is positioned on cylinder 1.One end of neck bush 2 passes through
Fixing bolt 4 is fixed on attemperator axial direction, and the other end of neck bush 2 is free end, can be with free wxpansion.
Other appropriate locations of neck bush 2, carrying bolt 3 is recycled to be supported and position the radial direction of neck bush 2.Cylinder 1 and interior
Bushing 2 is provided with the perforate to match in the relevant position of body base 6, and lower end and the cylinder 1 of body base 6 are connected, this
Body base 6 is above the one end of cylinder 1.Blast tube 16 is inserted with body base 6, the terminal part of blast tube 16 is placed in neck bush 2
Interior, the terminal part of blast tube 16 is connected with nozzle 14.In order to strengthen the stability of blast tube 16, can increase below blast tube 16
Provided with stationary positioned ring-type steel plate 15, for fixed nozzle pipe 16.The outside of blast tube 16 and nozzle 14 covers a nozzle and added again
Strong pillar 13, nozzle are strengthened inserting at least one block coaxial positioning steel between the outer circumference surface and the inwall of body base 6 of pillar 13
Plate 17, the coaxial fixing steel plate 17 are coaxially fixed with body base 6, and coaxial fixing steel plate 17 strengthens pillar 13 circumferentially with nozzle
Cloth mutually welds coaxial positioning.Upper end tube nozzle with the casing seat 11 of interior three-layer pipe mouth in outer connects with external water pipeline, in outer
The lower end of the casing seat 11 of interior three-layer pipe mouth be coaxially provided with it is outer in interior three-layer pipe mouth, the upper end of blast tube 16, nozzle strengthen pillar
13 upper end and the upper end of body base 6 respectively successively with the internal layer of the casing seat 11 of interior three-layer pipe mouth in outer, middle level and outer
The layer mouth of pipe is connected, and forms new casing seat.Nozzle strengthens pillar 13 lower end and is provided with breach, so as to coaxial assembling nozzle 14,
The quantity of nozzle 14 is at least 1, and more nozzles 14, the most end of subordinate's nozzle 14 can be used in series according to the increase of injection flow rate
Nozzle is inserted in after first blast tube 16 is connected with nozzle 14 for cecum, during assembling and strengthens pillar 13, by the upper end of blast tube 16 again
Mutually welded with the internal layer mouth of pipe with the casing seat 11 of interior three-layer pipe mouth in outer, welded again after film making is qualified nozzle strengthen pillar 13 with outer
In interior three-layer pipe mouth casing seat 11 the middle level mouth of pipe connection weld bond, after stationary positioned ring-type steel plate 15 effectively locks nozzle 14
Strengthen the phase of pillar 13 with nozzle to weld, make nozzle 14 difficult for drop-off.The casing seat for being equipped with the grade element of nozzle 14 is inserted in attemperator
In body base 6, finally the outer layer mouth of pipe with the casing seat 11 of interior three-layer pipe mouth in outer is welded with attemperator body base 6 again
Connect.Pay attention to ensureing that nozzle 14, the nozzle reinforcement direction of pillar 13 are consistent with the interior air-flow direction of cylinder 1 during assembling.
The lower end of casing seat 11 with interior three-layer pipe mouth in outer is coaxially provided with three-layer pipe mouth, and mismatch is arranged layer by layer, is easy to and nozzle
The mouth of pipe of pipe 16, nozzle strengthen the mouth of pipe of pillar 13 and are sequentially communicated mutually to be welded from inside to outside with the mouth of pipe of body base 6 to match somebody with somebody and detect a flaw film making.
Embodiment 2
As shown in Figure 3, Figure 4, in the present embodiment, the distal portion of blast tube 16 is in cylinder 1, outside neck bush 2, the end
For cecum, porous, the nozzle 14 of formation fluted shape tubulose is provided with the end.Coaxial fixing steel plate 17 can strengthen pillar by nozzle
The raised of 13 outer circumference surface substitutes coaxial positioning.
Other are same as Example 1.
Claims (10)
1. a kind of sleeve pipe A seating direct-contact desuperheater, including cylinder (1), cylinder (1) is interior to be provided with neck bush (2), cylinder (1) and body
The lower end of base (6) is connected, it is characterised in that nozzle is coaxially provided with inside described body base (6) and strengthens pillar
(13) and blast tube (16), nozzle strengthen the outside that pillar (13) is sheathed on blast tube (16), body base (6) upper end, nozzle
Strengthen pillar (13) upper end and blast tube (16) upper end respectively successively with casing seat (11) lower end of interior three-layer pipe mouth in outer
Outer layer, middle level are connected with the internal layer mouth of pipe, with the upper end tube nozzle of the casing seat (11) of interior three-layer pipe mouth in outer and external sparge pipe
Road connects, and for the terminal part of blast tube (16) in cylinder (1), the terminal part of blast tube (16) is provided with nozzle (14).
A kind of 2. sleeve pipe A seating direct-contact desuperheater as claimed in claim 1, it is characterised in that the one of described neck bush (2)
End is fixedly connected by fixing bolt (4) on attemperator axial direction with cylinder (1), and the other end of neck bush (2) is can be with
The free end of free wxpansion, pass through carrying bolt (3) in the opening position that can radially play support and positioning of neck bush (2)
It is connected with cylinder (1).
3. a kind of sleeve pipe A seating direct-contact desuperheater as claimed in claim 1, it is characterised in that under described blast tube (16)
End is provided with stationary positioned ring-type steel plate (15), and stationary positioned ring-type steel plate (15) is strengthened pillar (13) with nozzle and is connected.
A kind of 4. sleeve pipe A seating direct-contact desuperheater as claimed in claim 3, it is characterised in that described stationary positioned ring-type steel
Plate (15) is end fixed support block.
5. a kind of sleeve pipe A seating direct-contact desuperheater as claimed in claim 1, it is characterised in that described nozzle strengthens pillar
(13) at least one piece of coaxial fixing steel plate (17), coaxial fixing steel plate (17) and body base are inserted between body base (6)
(6) it is coaxial fixed；Coaxial fixing steel plate (17) strengthens the circumferential uniform phase of pillar (13) with nozzle and welds coaxial positioning.
A kind of 6. sleeve pipe A seating direct-contact desuperheater as claimed in claim 1, it is characterised in that the quantity of described nozzle (14)
It is at least 1.
7. a kind of sleeve pipe A seating direct-contact desuperheater as claimed in claim 1, it is characterised in that described nozzle (14), nozzle
It is consistent with the airflow direction in cylinder (1) to strengthen pillar (13) direction.
A kind of 8. sleeve pipe A seating direct-contact desuperheater as claimed in claim 1, it is characterised in that the end of described blast tube (16)
In neck bush (2), cylinder (1) and neck bush (2) are provided with perforate in the opening position of body base (6) for end.
A kind of 9. sleeve pipe A seating direct-contact desuperheater as claimed in claim 1, it is characterised in that the end of described blast tube (16)
Located at neck bush (2) outside, nozzle (14) direction is against the opening of neck bush (2), and cylinder (1) is in body base (6) for end
Opening position is provided with perforate.
10. a kind of sleeve pipe A seating direct-contact desuperheater as claimed in claim 1, it is characterised in that described blast tube (16) is
End is provided with porous fluted shape tubulose for cecum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931942.5A CN107606597B (en) | 2017-10-09 | 2017-10-09 | Sleeve seat type water spraying desuperheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931942.5A CN107606597B (en) | 2017-10-09 | 2017-10-09 | Sleeve seat type water spraying desuperheater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107606597A true CN107606597A (en) | 2018-01-19 |
| CN107606597B CN107606597B (en) | 2023-09-22 |
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ID=61068325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710931942.5A Active CN107606597B (en) | 2017-10-09 | 2017-10-09 | Sleeve seat type water spraying desuperheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107606597B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345467A (en) * | 2019-07-31 | 2019-10-18 | 上海锅炉厂有限公司 | A kind of desuperheater internal cover drum supporting device and installation method |
| CN110425514A (en) * | 2019-08-22 | 2019-11-08 | 威立雅（哈尔滨）热电有限公司 | Superheated steam temperature reduction device |
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| CN201662056U (en) * | 2009-11-30 | 2010-12-01 | 上海锅炉厂有限公司 | Water spraying device of desuperheater |
| CN201724207U (en) * | 2010-04-09 | 2011-01-26 | 上海锅炉厂有限公司 | Spray attemperator with improved liner structure |
| CN102588947A (en) * | 2012-02-29 | 2012-07-18 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of 350MW tangential firing supercritical boiler reheater and temperature reducing method of temperature reducer |
| CN102650425A (en) * | 2012-05-30 | 2012-08-29 | 上海锅炉厂有限公司 | Composite bushing type water spraying desuperheater |
| CN202769637U (en) * | 2012-06-22 | 2013-03-06 | 上海锅炉厂有限公司 | Composite bushing type direct contact desuperheater |
| CN207514891U (en) * | 2017-10-09 | 2018-06-19 | 上海锅炉厂有限公司 | A kind of casing A seating direct-contact desuperheater |
-
2017
- 2017-10-09 CN CN201710931942.5A patent/CN107606597B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201662056U (en) * | 2009-11-30 | 2010-12-01 | 上海锅炉厂有限公司 | Water spraying device of desuperheater |
| CN201724207U (en) * | 2010-04-09 | 2011-01-26 | 上海锅炉厂有限公司 | Spray attemperator with improved liner structure |
| CN102588947A (en) * | 2012-02-29 | 2012-07-18 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of 350MW tangential firing supercritical boiler reheater and temperature reducing method of temperature reducer |
| CN102650425A (en) * | 2012-05-30 | 2012-08-29 | 上海锅炉厂有限公司 | Composite bushing type water spraying desuperheater |
| CN202769637U (en) * | 2012-06-22 | 2013-03-06 | 上海锅炉厂有限公司 | Composite bushing type direct contact desuperheater |
| CN207514891U (en) * | 2017-10-09 | 2018-06-19 | 上海锅炉厂有限公司 | A kind of casing A seating direct-contact desuperheater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345467A (en) * | 2019-07-31 | 2019-10-18 | 上海锅炉厂有限公司 | A kind of desuperheater internal cover drum supporting device and installation method |
| CN110425514A (en) * | 2019-08-22 | 2019-11-08 | 威立雅（哈尔滨）热电有限公司 | Superheated steam temperature reduction device |
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| Publication number | Publication date |
|---|---|
| CN107606597B (en) | 2023-09-22 |
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