CN207661757U - A kind of desuperheater spray tube support device - Google Patents
A kind of desuperheater spray tube support device Download PDFInfo
- Publication number
- CN207661757U CN207661757U CN201721481219.3U CN201721481219U CN207661757U CN 207661757 U CN207661757 U CN 207661757U CN 201721481219 U CN201721481219 U CN 201721481219U CN 207661757 U CN207661757 U CN 207661757U
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- China
- Prior art keywords
- block
- spray tube
- support device
- sparge pipe
- guide rod
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Abstract
The utility model provides a kind of desuperheater spray tube support device, including block, and sparge pipe is connect with block one end, and the block other end is equipped with counterbore；Guide rod passes through the pre-manufactured hole on the bushing of attemperator cylinder side wall thickness and attemperator cylinder, and is inserted into the counterbore in block, forms the limit to sparge pipe and fixes support.For the utility model while not changing traditional desuperheater spray tube support device agent structure, by carrying out the Curve guide impeller of shape and structure to block, guide rod, details is perfect, strengthens support fixed function of the guide rod to sparge pipe.Increase installation bleed passage, it is contemplated that cylindrical bore is designed in working condition thermal expansion curve, block flush end outside.This spline structure is simpler, compact, reliable, and desuperheating water sparge pipe has expansion space, structure itself to enhance the sparge pipe job security and reliability of attemperator operational process convenient for manufacture and installation when working.
Description
Technical field
The utility model is related to a kind of desuperheater spray tube support devices, are used for the tower boiler superheater desuperheat of million units
The support of sparge pipe is fixed in device, belongs to boiler pressure part technical field.
Background technology
In boiler system, superheater attemperator is mounted on boiler tubing, is changed superheater by spray desuperheating mode and is entered
The vapor (steam) temperature of mouth, to control the superheat steam temperature of outlet.Maintain superheater outlet vapor (steam) temperature within the allowable range, and
And protection superheater, so that tube wall temperature is no more than the operating temperature allowed.
Fig. 1 show in conventional tower boiler through frequently with a kind of superheater attemperator desuperheat sparge pipe support construction show
It is intended to, in this class formation form, the supporting way of sparge pipe 3 is to pass through the insertion of bushing 2 to be oriented to using the fixed pin in block 4
In the counterbore of bar 5, realize to the fixation in the limit of sparge pipe 3.Guide rod 5, which passes through, reinforces pipe fitting 6 and attemperator cylinder 1,
Reinforce pipe fitting 6 and is located at 1 lower section of attemperator cylinder.
Due to sparge pipe 3 and the Sizing requirements of guide rod 5, cause the fixed pin size in block 4 smaller.In boiler
In operational process, high temperature in burner hearth, high pressure, vibrations work condition environment under, the supporting point of this fixed pin and smaller by shear surface is answered
Power concentrates apparent, easily cracked, situations such as being even broken.
Utility model content
The technical problems to be solved in the utility model is how to improve the reliability of desuperheater spray tube support device, enhancing
The sparge pipe job security and reliability of attemperator operational process.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of desuperheater spray pipe support dress
It sets, it is characterised in that：Including block, sparge pipe is connect with block one end, and the block other end is equipped with counterbore；Guide rod passes through desuperheat
Pre-manufactured hole on the bushing of device cylinder side wall thickness and attemperator cylinder, and be inserted into the counterbore in block, it is formed to sparge pipe
Limit fix support.
Preferably, the sparge pipe is connect with block one end by the form of end-to-end bevel boxing seam welding.
Preferably, one end that the guide rod is inserted into block is cylinder, the counterbore of the block other end be with it is described
It is oriented to the cylindrical bore that rod structure matches.
Preferably, the guide rod is inserted into one end of block equipped with exhaust passage.
It is highly preferred that the guide rod other end is equipped with stress relief hole.
Preferably, expansion clearance is equipped between the guide rod and the counterbore base of block.
Preferably, it also is provided with expansion clearance between the block and attemperator cylinder inboard wall.
It is highly preferred that the size of the expansion clearance meets：It is multiplied by water spray tube material more than or equal to the water spray length of tube
Coefficient of thermal expansion at a temperature of design work.
Preferably, the attemperator cylinder body outer wall is equipped with the reinforcement pipe fitting for reinforcing fixed support guide bar；Reinforce
Pipe fitting is same to be located in outside support guide bar.
The utility model is not while changing traditional desuperheater spray tube support device agent structure, by lid
Cap, guide rod carry out the Curve guide impeller of shape and structure, and details is perfect, strengthens support fixed function of the guide rod to sparge pipe.
Increase installation bleed passage, it is contemplated that cylindrical bore is designed in working condition thermal expansion curve, block flush end outside.It ties in this way
Structure is more compact, and desuperheating water sparge pipe has expansion space, structure itself to enhance attemperator operation convenient for manufacture and installation when working
The sparge pipe job security and reliability of process.
Compared with prior art, the utility model has the advantages that：
1, simple in structure, reliable；
2, support fixed function of the guide rod to sparge pipe is strengthened, bearing area is increased, reduces the thin of stress concentration
Weak link improves the stability of support construction；
3, installation bleed passage is increased, fully considers exhaust when installation；
4, operation thermal expansion curve has been fully considered；
5, manufacture, mounting process simple possible enhance the sparge pipe job security of attemperator operational process and reliable
Property.
Description of the drawings
Fig. 1 is traditional desuperheater spray tube support device structural schematic diagram；
Fig. 2 is desuperheater spray tube support device structural schematic diagram provided in this embodiment；
Fig. 3 is guide rod structural schematic diagram；
Fig. 4 is A-A sectional views in Fig. 3；
Fig. 5 is expansion clearance schematic diagram.
Specific implementation mode
Fig. 2 is desuperheater spray tube support device structural schematic diagram provided in this embodiment, the desuperheater spray pipe
Support device includes block 4, and sparge pipe 3 is connect with 4 one end of block by the form of end-to-end bevel boxing seam welding.Block
4 other ends are equipped with small R round-corner transitions cylindrical bore.Guide rod 5, which sequentially passes through, reinforces pipe fitting 6,1 one side wall of attemperator cylinder
Pre-manufactured hole on thick and attemperator cylinder bushing 2, and it is inserted into the small R round-corner transitions cylindrical bore in block 4, formation pair
Support is fixed in the limit of sparge pipe 3.
Bushing 2 is set to 1 inner wall of attemperator cylinder, reinforces pipe fitting 6 and is connect with 1 outer wall of attemperator cylinder.Reinforce pipe fitting 6
For reinforcing fixed support guide bar 5, added depending on necessity.
As shown in Figure 3 and Figure 4,5 one end of guide rod is cylinder, and support fixed function, guide rod 5 are played to sparge pipe 3
The other end forms fixed support structure with attemperator cylinder 1, reinforcement pipe fitting 6.Guide rod 5 is inserted into 4 one end of block and is equipped with exhaust
Channel 7,5 other end of guide rod are equipped with stress relief hole 9.
As shown in figure 5, being equipped between expansion between the small R round-corner transitions cylindrical bore bottom in 4 outside of guide rod 5 and block
Gap 8 also is provided with expansion clearance 8 between 1 inner wall of block 4 and attemperator cylinder, is easily installed and stress release, is conducive to attemperator work
Thermal expansion when making.
Installation requirement：After sparge pipe 3 installs, first guide rod 5 is put in as far as possible, is then log out expansion clearance 8
It welds again.
The value requirement of expansion clearance 8：3 material of sparge pipe is multiplied by design work temperature more than or equal to 3 length of sparge pipe
Under coefficient of thermal expansion.
Desuperheater spray tube support device provided in this embodiment is the desuperheater spray tube support device base traditional in Fig. 1
The improvement carried out on plinth, specific improvement are as follows：
The counter bore structure for eliminating fixed pin insertion guide rod 5 raised in Fig. 1 blocks 4, simplifies structure, avoids high spot
Weak link caused by stress concentration.With entire guide rod 5 as the support to sparge pipe 3, this structure type increases spray
The secure fit size of water pipe 3 and guide rod 5, considerably increases bearing area and forced area.
Counterbore form is improved at cooperation：It will be processed into small R round-corner transitions cylindrical bore on the outside of 4 flush end of block, led simultaneously
1 side wall thickness of attemperator cylinder, counterbore size and 4 tight fit of guide rod are passed through to bar 5.Guide rod 5 pass through attemperator cylinder 1,
Bushing 2 is inserted directly into the counterbore of block 4, and it is fixed to play the role of limit.This small R round-corner transitions cylindrical bore design,
4 length of block is reduced, enough sparge pipe expansion spaces are reserved.
Expansion room ensures：Gap between 1 inner wall of gap, block 4 and attemperator cylinder between guide rod 5 and block 4
It needs to ensure.5 both ends design stress of guide rod and bleed passage, are easily installed and stress release, are conducive to heat when attemperator work
Expansion.
The above, the only preferred embodiment of the utility model, it is in any form and substantive not to the utility model
On limitation, it is noted that for those skilled in the art, in the premise for not departing from the utility model method
Under, several improvement and supplement can be also made, these are improved and supplement also should be regarded as the scope of protection of the utility model.It is all ripe
Professional and technical personnel is known, in the case where not departing from the spirit and scope of the utility model, when using disclosed above
Technology contents and the equivalent variations of a little variation, modification and evolution made, be the equivalent embodiment of the utility model；Together
When, all substantial technologicals according to the utility model to the variation, modification and evolution of any equivalent variations made by above-described embodiment,
In the range of still falling within the technical solution of the utility model.
Claims (9)
1. a kind of desuperheater spray tube support device, it is characterised in that：Including block (4), sparge pipe (3) and block (4) one end
Connection, block (4) other end are equipped with counterbore；Guide rod (5) passes through the lining of attemperator cylinder (1) side wall thickness and attemperator cylinder
The pre-manufactured hole on (2) is covered, and is inserted into the counterbore in block (4), the limit to sparge pipe (3) is formed and fixes support.
2. a kind of desuperheater spray tube support device as described in claim 1, it is characterised in that：The sparge pipe (3) and lid
Cap (4) one end is connected by the form of end-to-end bevel boxing seam welding.
3. a kind of desuperheater spray tube support device as described in claim 1, it is characterised in that：The guide rod (5) is inserted into
One end of block (4) is cylinder, and the counterbore of block (4) other end is the circle to match with the guide rod (5) structure
Cylindricality counterbore.
4. a kind of desuperheater spray tube support device as described in claim 1, it is characterised in that：The guide rod (5) is inserted into
One end of block (4) is equipped with exhaust passage (7).
5. a kind of desuperheater spray tube support device as claimed in claim 4, it is characterised in that：The guide rod (5) is another
End is equipped with stress relief hole (9).
6. a kind of desuperheater spray tube support device as described in claim 1, it is characterised in that：The guide rod (5) and lid
It is equipped with expansion clearance (8) between the counterbore base of cap (4).
7. a kind of desuperheater spray tube support device as described in claim 1, it is characterised in that：The block (4) and desuperheat
It also is provided with expansion clearance (8) between device cylinder (1) inner wall.
8. a kind of desuperheater spray tube support device as claimed in claims 6 or 7, it is characterised in that：The expansion clearance (8)
Size meet：It is multiplied by thermal expansion of sparge pipe (3) material at a temperature of design work more than or equal to the sparge pipe (3) length
Coefficient.
9. a kind of desuperheater spray tube support device as described in claim 1, it is characterised in that：The attemperator cylinder (1)
Outer wall is equipped with the reinforcement pipe fitting (6) for reinforcing fixed support guide bar (5)；Reinforcement pipe fitting (6) is located in support together and leads
It is external to bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721481219.3U CN207661757U (en) | 2017-11-08 | 2017-11-08 | A kind of desuperheater spray tube support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721481219.3U CN207661757U (en) | 2017-11-08 | 2017-11-08 | A kind of desuperheater spray tube support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207661757U true CN207661757U (en) | 2018-07-27 |
Family
ID=62938977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721481219.3U Active CN207661757U (en) | 2017-11-08 | 2017-11-08 | A kind of desuperheater spray tube support device |
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|---|---|
| CN (1) | CN207661757U (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 |
| CN110411600A (en) * | 2019-08-28 | 2019-11-05 | 清河县华源精密仪表厂 | A kind of profile thermocouple |
-
2017
- 2017-11-08 CN CN201721481219.3U patent/CN207661757U/en active Active
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 |
| CN110411600A (en) * | 2019-08-28 | 2019-11-05 | 清河县华源精密仪表厂 | A kind of profile thermocouple |
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