CN207514891U - A kind of casing A seating direct-contact desuperheater - Google Patents
A kind of casing A seating direct-contact desuperheater Download PDFInfo
- Publication number
- CN207514891U CN207514891U CN201721294247.4U CN201721294247U CN207514891U CN 207514891 U CN207514891 U CN 207514891U CN 201721294247 U CN201721294247 U CN 201721294247U CN 207514891 U CN207514891 U CN 207514891U
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- nozzle
- casing
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- cylinder
- tube
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Abstract
The utility model discloses a kind of casing A seating direct-contact desuperheaters, including cylinder, neck bush is equipped in cylinder, cylinder connect fixation with the lower end of ontology tube socket, it is characterized in that, nozzle is coaxially provided with inside the ontology tube socket and strengthens pillar and blast tube, nozzle strengthens the outside that protective pipe sleeve is set on blast tube, ontology tube socket 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 internal layer nozzle, 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 set in cylinder, the terminal part of blast tube is equipped with nozzle.The utility model strengthens pillar by the way that casing seat with interior three-layer pipe mouth in outer and nozzle is fully sealed, the scope of application of direct-contact desuperheater is improved, enhances the safety and reliability of direct-contact desuperheater operational process, it is simple in structure, manufacture it is easy to assembly, convenient for safeguard.
Description
Technical field
The utility model is related to a kind of water spraying device of desuperheater more particularly to a kind of casing A seating direct-contact desuperheaters, are used for
In station 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 adjusting of vapor (steam) temperature can be divided into two major class：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, for 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 wall of the pipe when thicker desuperheating water is dropped onto on neck bush 2, since 2 accumulation of heat inertia of neck bush is small, makes water droplet
Rapid gasification, the thermal stress generated on neck bush 2 are little.Neck bush 2 is connect at nozzle with fixing bolt 4 with cylinder 1,
Former blast tube 5 is directly connected by flanged joint pair with ontology tube socket 6, direction and the 1 interior air-flow direction one of cylinder of former blast tube 5
It causes.The drawback is that：Cantilever vibration can occur for spray nozzle device during operation, easily cause spray nozzle device fracture, desuperheating water is from breaking part
It sprays, 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 can cause booster.By the flanged joint pair that flange 7, blind flange 8, stud 9 and nut 10 form in attemperator operation
Leakage is easily generated, and is not suitable for using in the direct-contact desuperheater under high temperature and pressure operating status.
Traditional casing A seating direct-contact desuperheater is formed by two compound tube socket concatenations, and each compound tube socket has interior
Nozzle will be strengthened pillar and blast tube by compound tube socket and is respectively connected in the form of connecting by outer two layers of nozzle, dress
One layer of pipe in compound tube socket, which is generally, with process is inserted in one layer of nozzle outside compound tube socket 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 tube sockets of the elements such as nozzle again with attemperator body tube
Seat welding.This composite bushing A seating direct-contact desuperheater formed by two compound tube socket concatenations is complicated, compound sleeve tube socket
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.
Invention content
The technical problems to be solved in the utility model is：Provide a kind of raising scope of application, simple in structure, assembling side
Just it, convenient for the casing A seating direct-contact desuperheater safeguarded, high temperature resistance and crushing resistance are good, solves traditional casing A seating water spray and subtracts
Warm device is complicated, and intensity is low, the scope of application of design temperature and design pressure is low, and assembly process is cumbersome, is not easy to operate, no
The problem of being suitble to use in the direct-contact desuperheater under high temperature and pressure operating status.
In order to solve the above-mentioned technical problem, there is provided a kind of casing A seating spray desuperheatings for the technical solution of the utility model
Device including cylinder, is equipped with neck bush, cylinder connect fixation with the lower end of ontology tube socket, which is characterized in that the sheet in cylinder
Nozzle is coaxially provided with inside body tube socket and strengthens pillar and blast tube, nozzle strengthens the outside that protective pipe sleeve is set on blast tube, body tube
Seat upper end, nozzle strengthen pillar upper end and blast tube upper end respectively successively with in outer the casing seat lower end of interior three-layer pipe mouth it is outer
Layer, middle level are connected with internal layer nozzle, and the 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 set in cylinder, and the terminal part of blast tube is equipped with nozzle.
Preferably, one end of the neck bush is fixed with cylinder on attemperator axial direction by fixing bolt and connected
It connects, the other end of neck bush is can radially play support and positioning with the free end of free wxpansion in neck bush
It is connect at position by carrying bolt with cylinder.
Preferably, the lower end of the blast tube is equipped with stationary positioned ring-type steel plate, stationary positioned ring-type steel plate and nozzle
Strengthen pillar connection.
Preferably, the stationary positioned ring-type steel plate is end fixed support block.
Preferably, the nozzle is strengthened being placed at least one piece of coaxial fixing steel plate between pillar and ontology tube socket, coaxially
Fixing steel plate is coaxially fixed with ontology tube socket；Coaxial fixing steel plate strengthens the circumferentially uniformly distributed phase of pillar with nozzle and welds coaxial positioning.
Preferably, the quantity of the nozzle is at least 1.
Preferably, the nozzle, nozzle reinforcement pillar direction are consistent with the airflow direction in cylinder.
Preferably, the terminal part of the blast tube is set in neck bush, and cylinder and neck bush are in the position of ontology tube socket
It puts place and is equipped with trepanning.
Preferably, the terminal part of the blast tube is set on outside neck bush, and nozzle direction is against the opening of neck bush, cylinder
Body is equipped with trepanning at the position of ontology tube socket.
Preferably, it is that cecum is provided with porous fluted shape tubulose that the blast tube, which is end,.
The utility model 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 tube seat pipe mouth, nozzle reinforcement pillar nozzle are connected with blast tube nozzle and are combined into the assembled casing seat of good airproof performance, the set
Tube socket bears high pressure weld bond and only has the outer one layer of nozzle of casing seat to dock weld bond for one with ontology tube socket, remaining middle level and internal layer nozzle
Docking weld bond be no pressure welding mouth.The leakage defect and low-temp low-pressure for not only avoiding former flange connection use limitation
Property, enhance casing seat structural strength while design element is simplified, improve direct-contact desuperheater design temperature and design pressure
The scope of application, and the scouring force that the nozzle recoil strength that is born of reinforcement pillar and steam zone come effectively is transferred to ontology
On tube socket and cylinder.Nozzle, which strengthens pillar, can effectively protect and fixed nozzle and coupled blast tube, enhance nozzle
Recoil strength during work, plays a supporting role, and also avoids the possibility of spray nozzle device cantilever vibration during operation, it is ensured that spray nozzle device is not
Fracture, can also avoid steam from directly being washed away to nozzle and blast tube.The utility model is suitble to run at high temperature under high pressure,
With preferable high temperature resistance and crushing resistance.It, only need to be by the inside and outside three-layer pipe mouth of the casing seat and blast tube, spray in assembling
Mouth strengthens pillar, attemperator ontology tube socket welds successively, and operational sequence rationally facilitates, and improves efficiency of assembling.
The utility model 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 operational process, simple in structure, manufacture
It is easy to assembly, convenient for safeguarding.
Description of the drawings
Fig. 1 is the flanged formula direct-contact desuperheater structure diagram of traditional single tube seat；
Fig. 2 is a kind of structure diagram for casing A seating direct-contact desuperheater that blast tube one end is located in neck bush；
Fig. 3 is a kind of structure diagram for casing 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.
Specific embodiment
To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and attached drawing is coordinated to be described in detail below.
Embodiment 1
The utility model is a kind of casing A seating direct-contact desuperheater, as shown in Fig. 2, it includes cylinder 1, one built in cylinder 1
A neck bush 2, neck bush 2 fixed by fixing bolt 4 and carrying bolt 3, is supported and is located on cylinder 1.One end of neck bush 2
It is fixed on attemperator axial direction by fixing bolt 4, the other end of neck bush 2 is free end, can be freely swollen
It is swollen.In 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
The trepanning to match is equipped in the corresponding position of ontology tube socket 6 with neck bush 2, the lower end of ontology tube socket 6 is connect admittedly with cylinder 1
Fixed, ontology tube socket 6 is set on above 1 one end of cylinder.Blast tube 16 is inserted in ontology tube socket 6, in the terminal part of blast tube 16 is placed in
In bushing 2, the terminal part of blast tube 16 is connect with nozzle 14.It, can be in blast tube 16 in order to enhance the stability of blast tube 16
Lower section has additional stationary positioned ring-type steel plate 15, for fixed nozzle pipe 16.The outside of blast tube 16 and nozzle 14 covers one again
Nozzle strengthens pillar 13, nozzle strengthen being placed between the outer circumference surface of pillar 13 and the inner wall of ontology tube socket 6 at least one piece it is coaxial
Fixing steel plate 17, the coaxial fixing steel plate 17 is coaxial fixed with ontology tube socket 6, and coaxial fixing steel plate 17 strengthens pillar 13 with nozzle
The circumferential uniformly distributed coaxial positioning of mutually weldering.Upper end tube nozzle with the casing seat 11 of interior three-layer pipe mouth in outer connects with external water pipeline,
Lower end with the casing seat 11 of interior three-layer pipe mouth in outer be coaxially provided with it is outer in interior three-layer pipe mouth, the upper end of blast tube 16, nozzle add
The upper end of strong pillar 13 and the upper end of ontology tube socket 6 respectively successively with the internal layer of the casing seat 11 of interior three-layer pipe mouth in outer, in
Layer is connected with outer layer nozzle, forms novel casing seat.Nozzle strengthens 13 lower end of pillar and is provided with notch, coaxially to assemble spray
Mouth 14, the quantity of nozzle 14 is at least 1, and more nozzles 14, most subordinate's nozzle can be used in series according to the increase of water spray
14 ends are cecum, when assembling first blast tube 16 is connect with nozzle 14 after be inserted in nozzle reinforcement pillar 13, by blast tube 16
Upper end is mutually welded again with the internal layer nozzle with the casing seat 11 of interior three-layer pipe mouth in outer, is welded nozzle again after film making is qualified and is strengthened pillar 13
With the connection weld bond with the middle level nozzle of the casing seat 11 of interior three-layer pipe mouth in outer, the effectively locking spray of stationary positioned ring-type steel plate 15
Strengthen 13 phase of pillar with nozzle after mouth 14 to weld, make nozzle 14 not easily to fall off.The casing seat for being equipped with 14 grade elements of nozzle is inserted in and subtracts
In the ontology tube socket 6 of warm device, finally by the outer layer nozzle with the casing seat 11 of interior three-layer pipe mouth in outer again with attemperator body tube
Seat 6 welds.Pay attention to ensureing that nozzle 14, nozzle reinforcement 13 direction of pillar are consistent with 1 interior air-flow direction of cylinder during assembling.
11 lower end of casing seat with interior three-layer pipe mouth in outer is coaxially provided with three-layer pipe mouth, and mismatch is arranged layer by layer, is convenient for and nozzle
16 nozzle of pipe, nozzle strengthen 13 nozzle of pillar and are sequentially communicated mutually to be welded from inside to outside with 6 nozzle of ontology tube socket to match 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 on the end.Coaxial fixing steel plate 17 can strengthen pillar by nozzle
The protrusion of 13 outer circumference surface substitutes coaxial positioning.
Other are same as Example 1.
Claims (10)
1. including cylinder (1), neck bush (2), cylinder (1) and ontology are equipped in cylinder (1) for a kind of casing A seating direct-contact desuperheater
The lower end connection of tube socket (6) is fixed, which is characterized in that nozzle is coaxially provided with inside the ontology tube socket (6) and strengthens pillar
(13) and blast tube (16), nozzle strengthen the outside that pillar (13) is sheathed on blast tube (16), ontology tube socket (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 internal layer nozzle, 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 the terminal part of blast tube (16) is set in cylinder (1), and the terminal part of blast tube (16) is equipped with nozzle (14).
A kind of 2. casing A seating direct-contact desuperheater as described in claim 1, which is characterized in that the one of the 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 passes through carrying bolt (3) at the position that can radially play support and positioning of neck bush (2)
It is connect with cylinder (1).
3. a kind of casing A seating direct-contact desuperheater as described in claim 1, which is characterized in that under the blast tube (16)
End is equipped with stationary positioned ring-type steel plate (15), and stationary positioned ring-type steel plate (15) is strengthened pillar (13) with nozzle and connect.
A kind of 4. casing A seating direct-contact desuperheater as claimed in claim 3, which is characterized in that the stationary positioned ring-type steel
Plate (15) is end fixed support block.
5. a kind of casing A seating direct-contact desuperheater as described in claim 1, which is characterized in that the nozzle strengthens pillar
(13) at least one piece of coaxial fixing steel plate (17), coaxial fixing steel plate (17) and ontology tube socket are placed between ontology tube socket (6)
(6) it is coaxial fixed；Coaxial fixing steel plate (17) strengthens the circumferentially uniformly distributed phase of pillar (13) with nozzle and welds coaxial positioning.
A kind of 6. casing A seating direct-contact desuperheater as described in claim 1, which is characterized in that the quantity of the nozzle (14)
It is at least 1.
7. a kind of casing A seating direct-contact desuperheater as described in claim 1, which is characterized in that the nozzle (14), nozzle
It is consistent with the airflow direction in cylinder (1) to strengthen pillar (13) direction.
A kind of 8. casing A seating direct-contact desuperheater as described in claim 1, which is characterized in that the end of the blast tube (16)
End is set in neck bush (2), and cylinder (1) and neck bush (2) are equipped with trepanning at the position of ontology tube socket (6).
A kind of 9. casing A seating direct-contact desuperheater as described in claim 1, which is characterized in that the end of the blast tube (16)
End is set on neck bush (2) outside, and nozzle (14) direction is against the opening of neck bush (2), and cylinder (1) is in ontology tube socket (6)
Trepanning is equipped at position.
10. a kind of casing A seating direct-contact desuperheater as described in claim 1, which is characterized in that the blast tube (16) is
End is provided with porous fluted shape tubulose for cecum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294247.4U CN207514891U (en) | 2017-10-09 | 2017-10-09 | A kind of casing A seating direct-contact desuperheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294247.4U CN207514891U (en) | 2017-10-09 | 2017-10-09 | A kind of casing A seating direct-contact desuperheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207514891U true CN207514891U (en) | 2018-06-19 |
Family
ID=62534035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721294247.4U Withdrawn - After Issue CN207514891U (en) | 2017-10-09 | 2017-10-09 | A kind of casing A seating direct-contact desuperheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207514891U (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 |
-
2017
- 2017-10-09 CN CN201721294247.4U patent/CN207514891U/en not_active Withdrawn - After Issue
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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180619 Effective date of abandoning: 20230922 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180619 Effective date of abandoning: 20230922 |