CN208331531U - Jet chimney with by-passing valve - Google Patents
Jet chimney with by-passing valve Download PDFInfo
- Publication number
- CN208331531U CN208331531U CN201820898396.XU CN201820898396U CN208331531U CN 208331531 U CN208331531 U CN 208331531U CN 201820898396 U CN201820898396 U CN 201820898396U CN 208331531 U CN208331531 U CN 208331531U
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- China
- Prior art keywords
- connection ring
- tube socket
- passing valve
- bypass pipe
- jet chimney
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Abstract
The utility model discloses a kind of jet chimneys with by-passing valve to be provided with by-passing valve on the bypass pipe, NiCrFe-3 nichrome is filled in the weld bond between the bypass pipe and tube socket including being responsible for and being mounted on the bypass pipe on supervisor by tube socket.More significantly, the possibility for generating bead crack is also just bigger, reinforces welding to the position for the thermal stress that place receiving is connect with tube socket because of bypass pipe.Reinforcement weldering is carried out using special welding rod (NiCrFe-3) in first of weld bond that steam governing valve is both provided with heating coil by-passing valve and drain valve bypass tube socket and transverse tube substantially, increases the intensity and toughness of the weld seam with this.
Description
Technical field
The utility model relates to steam transportation arts, and in particular to the jet chimney with by-passing valve.
Background technique
The commercial plants steam governing valve such as power station is both provided with heating coil by-passing valve and drain valve substantially, and main operating condition has
Following 2 kinds: 1) heating coil operating condition: bypass pipe is closed by steam, main valve, i.e., bypass pipe temperature is higher than supervisor；2) nominal situation: other
Port valve is closed, and main valve operates normally, and bypass pipe temperature is lower than supervisor.In view of above-mentioned 2 kinds of completely different operating conditions, bypass pipe will
There are biggish thermal stress, and it is cracked to also result in its weld seam when serious, so as to cause leakage accident.
Utility model content
The purpose of this utility model is to provide a kind of jet chimney with by-passing valve, solve existing power station etc. other
Steam production plant steam by-pass pipe is because caused by thermal stress the problem of crackle.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of jet chimney with by-passing valve, it is described including being responsible for and being mounted on the bypass pipe on supervisor by tube socket
It is provided with by-passing valve on bypass pipe, NiCrFe-3 nichrome is filled in the weld bond between the bypass pipe and tube socket.
More significantly, the possibility for generating bead crack is also just bigger for the thermal stress that place receiving is connect with tube socket because of bypass pipe,
The position is reinforced welding.It is both provided with heating coil by-passing valve and drain valve bypass tube socket and transverse tube substantially in steam governing valve
First of weld bond reinforcement weldering is carried out using special welding rod (NiCrFe-3), increase the intensity and toughness of the weld seam with this.
Preferably, the tube socket is 12Cr1MoV tube socket, bypass pipe is 12Cr1MoV compo pipe.
Pipeline base material is 12Cr1MoVG, tube socket 12Cr1MoV, the R31 that wlding uses, and uses NiCrFe3 to layer；It can
With complete after normal welding and carry out reinforcement weldering again after non-destructive testing is qualified, effect is more preferable.
Preferably, the tube socket end is provided with the conical surface, the angle between the conical surface and axis is 15-75 °.
Preferably, there is the first connection ring in the tube socket end, there is the second connection ring on the bypass pipe, described first
More than two fixation holes are correspondingly arranged in connection ring and the second connection ring, have the first connection ring of screw bolt passes and second to connect
The fixation hole connect on ring is connect with nut.
First connection ring and the second connection ring are similar to flange, provide a chucking power for tube socket and bypass pipe, are connecting
When the larger stress that place is subject to, or deformation occurs for junction increases burden, and reduces deformation, to reduce crack generation
It may.
Preferably, first connection ring is provided with the connected unit of annular, institute in the one side of the second connection ring
It states and is disposed radially in connected unit there are two the above reinforcement tank, more than two reinforcement tank circular array arrangements；
Second connection ring is provided with reinforcement block in the one side of the first connection ring, and the reinforcement block is located at reinforcement tank
Interior and size and shape is adapted with the reinforcement tank.
Reinforcement block and reinforcement tank match, and play the role of positioning and clamp, and the width of height and weld is adapted,
It prevents weld seam by excessive compression, generates crack.
Preferably, the section of the reinforcement tank is trapezoidal and the width of notch is less than the width of slot bottom.
So that extruding force is generated between the first connection ring and the second connection ring, so that fixing the first connection with screw bolt and nut
Before ring and the second connection ring, the first connection ring and the second connection ring are tentatively fixed, reduce the difficulty of bolt and nut installation.
Compared with prior art, the beneficial effects of the utility model are at least one of following:
The jet chimney with by-passing valve of the application, continuous operation 2 years, bypass pipe and pipe in normal productive process
Seat junction is not all cracked.
It is both provided with substantially first of heating coil by-passing valve and drain valve bypass tube socket and transverse tube in steam governing valve
Weld bond carries out reinforcement weldering using special welding rod (NiCrFe-3), increases the intensity and toughness of the weld seam with this.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of jet chimney of the utility model with by-passing valve.
Fig. 2 is the connection schematic diagram of tube socket and by-passing valve in the utility model embodiment 1.
Fig. 3 is the connection schematic diagram of tube socket and by-passing valve in the utility model embodiment 4.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment 1:
A kind of jet chimney with by-passing valve 4 is present embodiments provided, as shown in Figs. 1-2, including 1 is responsible for and passes through pipe
Seat 3 is mounted on the bypass pipe 2 on supervisor 1, by-passing valve 4 is provided on the bypass pipe 2, between the bypass pipe 2 and tube socket 3
NiCrFe-3 nichrome is filled in weld bond 5.
The thermal stress that place receiving is connect with tube socket 3 because of bypass pipe 2 more significantly, generates the possibility of bead crack also just more
Greatly, which is reinforced welding.It is both provided with 2 tube socket 3 of heating coil by-passing valve 4 and drain valve bypass pipe substantially in steam governing valve
Reinforcement weldering is carried out using special welding rod NiCrFe-3 with first of weld bond 5 of transverse tube, increases the intensity and toughness of the weld seam with this.
Embodiment 2:
The present embodiment on the basis of embodiment 1, further defines: the tube socket 3 is 12Cr1MoV tube socket 3, bypass
Pipe 2 is 12Cr1MoV compo pipe.
Pipeline base material is 12Cr1MoVG, and tube socket 3 is 12Cr1MoV, the R31 that wlding uses, and uses NiCrFe3 to layer；
Can be complete after normal welding and reinforcement weldering be carried out again after non-destructive testing is qualified, effect is more preferable.
Embodiment 3:
The present embodiment on the basis of embodiment 1, further defines: 3 end of tube socket is provided with the conical surface, the cone
Angle between face and axis is 15-75 °.
Embodiment 4:
The present embodiment on the basis of embodiment 1, further defines: as shown in figure 3,3 end of the tube socket one at
Type has the first connection ring 31, and integrally formed with the second connection ring 21 on the bypass pipe 2, first connection ring 31 and second connects
It connects and is correspondingly arranged on more than two fixation holes on ring 21, have in screw bolt passes the first connection ring 31 and the second connection ring 21
Fixation hole is connect with nut.
First connection ring 31 and the second connection ring 21 and between connection type be similar to flange, be tube socket 3 and side
Siphunculus 2 provides a chucking power, when the larger stress being subject in junction, or and deformation occurs for junction increases burden,
Deformation is reduced, to reduce the possibility of crack generation.
Embodiment 5:
The present embodiment further defines on the basis of embodiment 4: first connection ring 31 is close to the second connection ring
It is provided with the connected unit 32 of annular in 21 one side, is disposed radially in the connected unit 32 there are two the above reinforcement tank, two
Reinforcement tank circular array arrangement described above；
Second connection ring 21 is provided with reinforcement block 22, the reinforcement block 22 in the one side of the first connection ring 31
In in reinforcement tank and size and shape is adapted with the reinforcement tank.
Reinforcement block 22 and reinforcement tank match, and play the role of positioning and clamp, and the width of height and weld is adapted,
Weld seam is also prevented from by excessive compression, generates crack.
Embodiment 6:
The present embodiment further defines on the basis of embodiment 5: the section of the reinforcement tank is trapezoidal and notch
Width is less than the width of slot bottom.
So that extruding force is generated between the first connection ring 31 and the second connection ring 21, so that fixing first with screw bolt and nut
Before connection ring 31 and the second connection ring 21, the first connection ring 31 and the second connection ring 21 are tentatively fixed, reduce bolt spiral shell
The difficulty of mother's installation.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it discloses in the application, drawings and claims
In range, can building block to theme combination layout and/or layout carry out a variety of variations and modifications.In addition to building block
And/or outside the modification and improvement of layout progress, to those skilled in the art, other purposes also be will be apparent.
Claims (6)
1. a kind of jet chimney with by-passing valve is mounted on the bypass on supervisor (1) including supervisor (1) and by tube socket (3)
It manages (2), is provided with by-passing valve (4) on the bypass pipe (2), it is characterised in that: between the bypass pipe (2) and tube socket (3)
NiCrFe-3 nichrome is filled in weld bond (5).
2. the jet chimney according to claim 1 with by-passing valve, which is characterized in that the tube socket (3) is
12Cr1MoV tube socket (3), bypass pipe (2) are 12Cr1MoV compo pipe.
3. the jet chimney according to claim 1 with by-passing valve, which is characterized in that tube socket (3) the end setting
There is the conical surface, the angle between the conical surface and axis is 15-75 °.
4. the jet chimney according to claim 1 with by-passing valve, which is characterized in that tube socket (3) end has
One connection ring (31) has the second connection ring (21) on the bypass pipe (2), first connection ring (31) and the second connection ring
(21) it is correspondingly arranged on more than two fixation holes on, has in the first connection ring of screw bolt passes (31) and the second connection ring (21)
Fixation hole connect with nut.
5. the jet chimney according to claim 4 with by-passing valve, which is characterized in that first connection ring (31) is leaned on
It is provided with the connected unit (32) of annular in the one side of nearly second connection ring (21), has been disposed radially two on the connected unit (32)
A above reinforcement tank, more than two reinforcement tank circular array arrangements；
Second connection ring (21) is provided with reinforcement block (22), the reinforcement block in the one side of the first connection ring (31)
(22) it is located in reinforcement tank and size and shape is adapted with the reinforcement tank.
6. the jet chimney according to claim 5 with by-passing valve, which is characterized in that the section of the reinforcement tank is in ladder
The width of shape and notch is less than the width of slot bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898396.XU CN208331531U (en) | 2018-06-11 | 2018-06-11 | Jet chimney with by-passing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898396.XU CN208331531U (en) | 2018-06-11 | 2018-06-11 | Jet chimney with by-passing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331531U true CN208331531U (en) | 2019-01-04 |
Family
ID=64770077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820898396.XU Active CN208331531U (en) | 2018-06-11 | 2018-06-11 | Jet chimney with by-passing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208331531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345459A (en) * | 2019-07-10 | 2019-10-18 | 中海石油华鹤煤化有限公司 | A kind of coal slurry gasifier and high-pressure boiler coproduction steam enhancing device and method |
-
2018
- 2018-06-11 CN CN201820898396.XU patent/CN208331531U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345459A (en) * | 2019-07-10 | 2019-10-18 | 中海石油华鹤煤化有限公司 | A kind of coal slurry gasifier and high-pressure boiler coproduction steam enhancing device and method |
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