CN206038170U - Alloy steel pipe of thermal power plant says and constructs with no xenogenesis steel welding seam temperature measurement station jacketing machine - Google Patents
Alloy steel pipe of thermal power plant says and constructs with no xenogenesis steel welding seam temperature measurement station jacketing machine Download PDFInfo
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- CN206038170U CN206038170U CN201621009837.3U CN201621009837U CN206038170U CN 206038170 U CN206038170 U CN 206038170U CN 201621009837 U CN201621009837 U CN 201621009837U CN 206038170 U CN206038170 U CN 206038170U
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Abstract
The utility model discloses an alloy steel pipe of thermal power plant says and constructs with no xenogenesis steel welding seam temperature measurement station jacketing machine, say including locating alloy steel pipe that the alloy steel stub (tube) of trompil top and middle part set up at the inside and alloy steel temperature measurement station sleeve pipe coaxial with the alloy steel stub (tube) of alloy steel stub (tube), alloy steel stub (tube) top is located on alloy steel temperature measurement station sleeve pipe upper portion, and alloy steel stub (tube) middle part is fixed in at the middle part, and the lower part is fixed in in the trompil of alloy steel pipe way, the mouth of pipe of alloy steel temperature measurement station sleeve pipe upper portion and alloy steel stub (tube) top adopts the steel welding seam of the same race that matches with both sides part material to carry out welded connection, the alloy steel stub (tube) lower part mouth of pipe adopts the steel welding seam of the same race that matches with both sides part material to carry out welded connection with the trompil upper portion mouth of pipe that alloy steel pipe said, alloy steel temperature measurement station sleeve pipe upper portion is equipped with the temperature element (TE screw in and connects the hole, the utility model discloses big, the difficult vibration of alloy steel temperature measurement station sleeve pipe rigidity, the weak interface of having eliminated xenogenesis steel welding seam, sheathed tube security and reliability are high, temperature element changes conveniently.
Description
Technical field
This utility model is related to a kind of thermal power plant's steel alloy pipeline with without dissimilar steel weld seam temperature measuring point sleeve pipe mechanism.
Background technology
In power plant units running, for accurately reflecting the temperature parameter of working medium (water, vapour etc.), the fortune of unit is controlled
Row state, it is ensured that Temperature of Working meets design requirement, it is ensured that unit safety stable operation, need to set on thermal power plant's steel alloy pipeline
Meter installs several temperature point devices, to carry out monitor in real time to Temperature of Working, it is ensured that the safe operation of unit.
Fig. 1 show a kind of traditional temperature point sleeve structure schematic diagram.Austenitic stainless steel material temperature point set
Pipe 2 is goed deep into inside pipeline by the perforate of Alfer steel conduit 1, temperature sleeves 2 and 1 perforate of steel alloy pipeline employing suitable for reading
Ni bases wlding is welded, and defines dissimilar metal weld 3.In place of the shortcoming and defect of the temperature point sleeve pipe it is：Rustless steel temperature
Measuring point sleeve pipe 2 and steel alloy pipeline 1 are respectively austenitic matrix and ferrite matrix, category dissimilar steel connection, change between the two
Study point and thermal coefficient of expansion has bigger difference, the fused interface between weld seam 3 and steel alloy pipeline 1 easily ftractures；Additionally,
In unit running process, vibration of the temperature sleeves 2 under vapor action can form stress concentration in the root of weld seam 3, cause weldering
There is cracking with the fused interface of steel alloy pipeline 1 under alternate stress effect and come off in seam 3.
Fig. 2 show another kind of traditional temperature point sleeve structure schematic diagram.Stainless steel temperature point sleeve pipe 3 is adopted
It is connected with stub (tube) 2 by dissimilar metal weld 5 with complete penetraction and fusion in welding structure.The shortcoming and defect of the temperature point sleeve pipe is in
In：Rustless steel temperature point sleeve pipe 3 falls within different steel weld structure with the connection of stub (tube) 2, chemical composition between the two
Larger with difference of thermal expansion coefficients, the fused interface between weld seam 5 and stub (tube) 2 easily ftractures；At the scene in installation process, temperature
Degree sleeve pipe 3 cannot ensure and 2 rigid contact of stub (tube) that temperature point sleeve pipe 3 forms cantilever design, meeting in unit running process
Under vapor action occur vibration, cause temperature point sleeve pipe 3 top occur rupture, or cause dissimilar metal weld 5 along with connect
There is cracking and reveal in the fused interface of base 2, or even come off, and have a strong impact on the safe and stable operation of unit.
The content of the invention
The purpose of this utility model is the shortcoming and defect for overcoming said temperature measuring point sleeve structure, there is provided a kind of thermoelectricity
Factory's steel alloy pipeline with without dissimilar steel weld seam temperature measuring point sleeve pipe mechanism, with it is safe and reliable, be easy to that temperature point changes it is excellent
Point.
For reaching object above, this utility model is adopted the following technical scheme that：
A kind of thermal power plant's steel alloy pipeline with without dissimilar steel weld seam temperature measuring point sleeve pipe mechanism, including located at steel alloy pipeline
Steel alloy stub (tube) 2 and middle part above 1 perforate is arranged on inside steel alloy stub (tube) 2 and coaxial with steel alloy stub (tube) 2
Steel alloy temperature point sleeve pipe 3；Above steel alloy stub (tube) 2, middle part is solid on 3 top of steel alloy temperature point sleeve pipe
In the middle part of steel alloy stub (tube) 2, bottom is fixed in 1 perforate of steel alloy pipeline；3 top of steel alloy temperature point sleeve pipe
It is welded to connect using the steel weld seam of the same race 5 with both sides part material matching with the mouth of pipe above steel alloy stub (tube) 2；Alloy
2 lower nozzle of steel stub (tube) is with the perforate upper orifice of steel alloy pipeline 1 using the steel weldering of the same race with both sides part material matching
Seam 5 is welded to connect；3 top of steel alloy temperature point sleeve pipe is provided with temperature element (TE screw-in and connects hole.
Preferably, consistent with 1 material of steel alloy pipeline 2 inwall middle and upper part of steel alloy stub (tube) carries female thread；With conjunction
Consistent 3 mid portion of steel alloy temperature point sleeve pipe of golden steel conduit 1,2 material of steel alloy stub (tube) with steel alloy temperature
Measuring point sleeve pipe 3 is integrally-built round boss, and, with external screw thread, the external screw thread is interior with stub (tube) 2 for round boss outer surface
Wall female thread is matched.
Preferably, the temperature element (TE screw-in that 3 top of temperature point sleeve pipe is provided with connects hole by the way of screw thread is inlayed
The transition spool piece 4 of stainless steel is inserted, transition spool piece 4 connects hole inwall and is provided with female thread, being capable of scene and temperature-measuring element
Matching connection.
Preferably, 1 aperture bottom of steel alloy pipeline is provided with circular protrusions, during steel alloy temperature point sleeve pipe 3 passes through
Screw thread rotation pressure of portion's round boss in 2 inwall of steel alloy stub (tube), makes the lower cone body of steel alloy temperature point sleeve pipe 3
Tip penetrates the inside of steel alloy pipeline 1, the top larger diameter end of the bullet and the circle of 1 aperture bottom of pipeline by perforate
Raised circumference rigid contact.
Preferably, the steel weld seam 5 of the same race is complete penetraction and fusion in welding structure.
Compared with prior art, advantage of the present utility model is：
1st, steel alloy pipeline, stub (tube), being welded to connect for temperature sleeves are material of the same race, and the weld seam of stub (tube) both sides is equal
For complete penetraction and fusion in welding structure, no composition difference between part, thermal coefficient of expansion unanimously, eliminate the thin of Dissimilar Steel Welded Joint presence
Weak interface.
2nd, temperature point sleeve pipe is subject to firmly consolidate at 3 points of stub (tube) top attachment weld, middle part screw thread and bottom vertebral body
Fixed, rigidity is larger, will not produce vibration under high steam effect, eliminates temperature point sleeve pipe cracking or weld seam is opened in root
The mechanics factor for splitting, the safety and reliability of sleeve pipe are ensured.
3rd, the base manufacture, mounting process are simple, easy to maintenance.
4th, the transition spool piece of stainless steel has been inlayed in temperature point collar aperture, will not make temperature-measuring element through high
There is corrosion, adhesion in warm longtime running, make the temperature element (TE of temperature sleeves endoporus change facility.
Description of the drawings
Fig. 1 is a kind of traditional temperature point sleeve structure schematic diagram.
Fig. 2 is another kind of traditional temperature point sleeve structure schematic diagram.
A kind of temperature measuring point casing seat device structural representation that Fig. 3 is provided for this utility model.
Specific embodiment
It is understandable for becoming apparent from this utility model, this utility model is made such as with case is embodied as below in conjunction with accompanying drawing
Lower detailed description：
A kind of thermal power plant's steel alloy pipeline of this utility model offer is illustrated in figure 3 with without dissimilar steel weld seam temperature measuring point
Sleeve pipe mechanism, including above steel alloy pipeline 1-steel alloy stub (tube) 2 and coaxial with-steel alloy stub (tube) 2-alloy
Steel temperature point sleeve pipe 3,3 top of steel alloy temperature point sleeve pipe above-steel alloy stub (tube) 2, steel alloy temperature point
Be fixed in the middle part of sleeve pipe 3-steel alloy stub (tube) 2 in the middle part of, 3 bottom of steel alloy temperature point sleeve pipe is fixed on-steel alloy pipeline 1 opens
Inside hole.
Case study on implementation：Former perforate on steel alloy pipeline 1 is passing hole, first by the original of steel alloy pipeline 1 before installing
Perforate top carries out reaming, and the step cutting pattern that new aperture bottom leaves more than 3mm thickness is raised, and counter bore diameter is taken over steel alloy
Seat 2 is coaxial, and back cut diameter and the 2 lower nozzle diameter deviation of steel alloy stub (tube) of new reaming are less than 1mm；By steel alloy stub (tube) 2
GTAW welding is carried out using same material wlding with steel alloy pipeline 1, welding is complete using single face welding and double face shaping
Through welding structure, postwelding carry out heat treatment according to relevant criterion；Then steel alloy temperature point sleeve pipe 3 is progressively screwed in by screw thread
In steel alloy stub (tube) 2, reinforcing is until the cone outside diameter of steel alloy temperature point sleeve pipe 3 firmly is supported to touch and is stuck in alloy pipe
In the step cutting pattern projection in road 1.Finally, 2 upper orifice of steel alloy stub (tube) and steel alloy temperature point sleeve pipe 3 are adopted into same material
Wlding carries out the butt welding of complete penetraction and fusion in welding structure and heat treatment on spot technique.
Claims (5)
1. a kind of thermal power plant's steel alloy pipeline is with without dissimilar steel weld seam temperature measuring point sleeve pipe mechanism, it is characterised in that：Including being located at
Steel alloy stub (tube) (2) and middle part above steel alloy pipeline (1) perforate be arranged on steel alloy stub (tube) (2) it is internal and with conjunction
Golden steel stub (tube) (2) coaxial steel alloy temperature point sleeve pipe (3)；Steel alloy temperature point sleeve pipe (3) top is located at conjunction
Above golden steel stub (tube) (2), middle part is fixed in the middle part of steel alloy stub (tube) (2), and steel alloy pipeline (1) perforate is fixed in bottom
It is interior；The mouth of pipe above steel alloy temperature point sleeve pipe (3) top and steel alloy stub (tube) (2) using with both sides part material
Steel weld seam (5) of the same race of matching are welded to connect；The perforate of steel alloy stub (tube) (2) lower nozzle and steel alloy pipeline (1)
Upper orifice is welded to connect using steel weld seam (5) of the same race with both sides part material matching；Steel alloy temperature point sleeve pipe
(3) top is provided with temperature element (TE screw-in and connects hole.
2. a kind of thermal power plant's steel alloy pipeline as claimed in claim 1 is with without dissimilar steel weld seam temperature measuring point sleeve pipe mechanism, its
It is characterised by：Steel alloy stub (tube) (2) the inwall middle and upper part consistent with steel alloy pipeline (1) material carries female thread；With alloy
Consistent steel alloy temperature point sleeve pipe (3) mid portion of steel conduit (1), steel alloy stub (tube) (2) material is carried and steel alloy
Temperature point sleeve pipe (3) is integrally-built round boss, and round boss outer surface is with external screw thread, the external screw thread and stub (tube)
(2) inwall female thread matching.
3. a kind of thermal power plant's steel alloy pipeline as claimed in claim 1 is with without dissimilar steel weld seam temperature measuring point sleeve pipe mechanism, its
It is characterised by：The temperature element (TE screw-in that temperature point sleeve pipe (3) top is provided with connects hole and inserts by the way of screw thread is inlayed
The transition spool piece (4) of stainless steel, transition spool piece (4) connect hole inwall and are provided with female thread, being capable of scene and temperature-measuring element
Matching connection.
4. a kind of thermal power plant's steel alloy pipeline as claimed in claim 1 is with without dissimilar steel weld seam temperature measuring point sleeve pipe mechanism, its
It is characterised by：Steel alloy pipeline (1) aperture bottom is provided with circular protrusions, and steel alloy temperature point sleeve pipe (3) passes through middle part
Screw thread rotation pressure of the round boss in steel alloy stub (tube) (2) inwall, makes the lower taper of steel alloy temperature point sleeve pipe (3)
Body tip penetrates the inside of steel alloy pipeline (1), top larger diameter end and pipeline (1) aperture bottom of the bullet by perforate
Circular protrusions circumference rigid contact.
5. a kind of thermal power plant's steel alloy pipeline as claimed in claim 1 is with without dissimilar steel weld seam temperature measuring point sleeve pipe mechanism, its
It is characterised by：Described steel weld seam (5) of the same race are complete penetraction and fusion in welding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621009837.3U CN206038170U (en) | 2016-08-30 | 2016-08-30 | Alloy steel pipe of thermal power plant says and constructs with no xenogenesis steel welding seam temperature measurement station jacketing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621009837.3U CN206038170U (en) | 2016-08-30 | 2016-08-30 | Alloy steel pipe of thermal power plant says and constructs with no xenogenesis steel welding seam temperature measurement station jacketing machine |
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| Publication Number | Publication Date |
|---|---|
| CN206038170U true CN206038170U (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621009837.3U Active CN206038170U (en) | 2016-08-30 | 2016-08-30 | Alloy steel pipe of thermal power plant says and constructs with no xenogenesis steel welding seam temperature measurement station jacketing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197701A (en) * | 2016-08-30 | 2016-12-07 | 西安热工研究院有限公司 | A kind of thermal power plant steel alloy pipeline is with without dissimilar steel weld seam temperature measuring point casing bit |
-
2016
- 2016-08-30 CN CN201621009837.3U patent/CN206038170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197701A (en) * | 2016-08-30 | 2016-12-07 | 西安热工研究院有限公司 | A kind of thermal power plant steel alloy pipeline is with without dissimilar steel weld seam temperature measuring point casing bit |
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