CN214735957U - Spiral coil pipe heat treatment fixing device - Google Patents
Spiral coil pipe heat treatment fixing device Download PDFInfo
- Publication number
- CN214735957U CN214735957U CN202022891843.9U CN202022891843U CN214735957U CN 214735957 U CN214735957 U CN 214735957U CN 202022891843 U CN202022891843 U CN 202022891843U CN 214735957 U CN214735957 U CN 214735957U
- Authority
- CN
- China
- Prior art keywords
- spiral coil
- cylinder
- heat treatment
- fixing
- screw holes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat Treatment Of Articles (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model relates to a spiral coil pipe heat treatment fixing device, which comprises a hollow cylinder, wherein a plurality of first screw holes are respectively and longitudinally arranged on fixing parts of the cylinder in four directions of 0 degree, 90 degree, 180 degree and 270 degree, a rectangular fixing block is respectively matched with the fixing part in each direction, a second screw hole with the same number, position and size as those of the screw holes on the corresponding fixing part is arranged on each fixing block, and a spiral coil pipe is fixed between the cylinder and the fixing block through the matching of screws and nuts; the utility model discloses simple structure, practicality, with low costs, it is easy and simple to handle, not only can prevent that spiral coil pipe from warping when high temperature thermal treatment, can also rectify the size to obtain good geometric dimensions.
Description
Technical Field
The utility model belongs to the technical field of the spiral coil pipe is made, concretely relates to spiral coil pipe heat treatment fixing device.
Background
With the development of nuclear energy, the national requirements on the nuclear power generation utilization rate are increasingly improved, and nuclear power units with high safety and strong economic competitiveness are more urgently sought. The fourth generation nuclear power technology high temperature steam-cooled reactor unit and the lead bismuth reactor unit are produced under the requirement, and the two nuclear power unit evaporators both adopt spiral coil pipes which have higher heat exchange efficiency, can bear higher working pressure and pressure difference and have light weight.
The spiral coil has higher stress after being manufactured by a cold coil, which is not favorable for service life and safety. In order to eliminate the stress, stress relief heat treatment needs to be carried out at high temperature, if stress relief heat treatment is carried out along with the stress relief heat treatment in a natural state, after the stress is released, the spiral coil is rebounded, the geometric dimension of the spiral coil cannot be ensured, and the subsequent installation difficulty is aggravated.
SUMMERY OF THE UTILITY MODEL
Problem to prior art exists, the utility model provides a spiral coil pipe heat treatment fixing device, its simple structure, easily preparation, with low costs, durable, advantage easy and simple to handle not only can prevent that spiral coil pipe warp when high temperature thermal treatment, can also rectify the size to obtain good geometric dimensions.
The utility model provides a technical scheme of above technical problem: the utility model provides a spiral coil pipe heat treatment fixing device, including inside hollow drum 0, 90, 180, 270 four directions vertically are provided with the fixed part respectively, and every fixed part is equipped with a plurality of screw one, and the fixed part of every direction all is furnished with a rectangle fixed block, is provided with on every fixed block rather than the quantity, the position of screw on the corresponding fixed part, the equal unanimous screw two of size, and spiral coil pipe passes through the screw and is fixed between drum and fixed block with the nut cooperation.
The utility model discloses the technical scheme who further injects does:
the central distance between every two screw holes on the fixing parts in the directions of 0 degree, 90 degrees and 180 degrees of the cylinder is equal to the sum of the diameter of one screw hole and 2 times of the outer diameter of the spiral coil.
The central distance between two screw holes on the outermost side of one end of the fixing part in the 270-degree direction of the cylinder is equal to the sum of the outer diameter of the spiral coil and the diameter of one screw hole, and the central distance between every two other screw holes is equal to the sum of the diameters of the two screw holes and 2 times of the outer diameter of the spiral coil.
The contact part of the screw and the spiral coil is a smooth surface.
The cylinder and the fixing block are made of high-temperature resistant austenitic stainless steel.
The utility model has the advantages that: the utility model discloses simple structure, easily preparation, with low costs, durable, and easy and simple to handle, spiral coil uses this device fixed back, not only can prevent that spiral coil from warping when high temperature thermal treatment, can also rectify the size to obtain good geometric dimensions.
Drawings
Fig. 1 is a schematic view of the assembled overhead structure of the present invention;
fig. 2 is a schematic structural view of the assembled utility model in four directions of 0 °, 90 °, 180 °, 270 °;
fig. 3 is a schematic structural diagram of the cylinder in a front view of 0 ° or 90 ° or 180 ° direction;
fig. 4 is a structural schematic diagram of the drum of the present invention viewed from 270 ° direction;
fig. 5 is a front view of the fixing block used in the direction of 0 ° or 90 ° or 180 ° of the cylinder of the present invention;
fig. 6 is a front view of the fixing block used in the 270 ° direction of the cylinder of the present invention.
Detailed Description
Example 1
The embodiment provides a spiral coil heat treatment fixing device, the structure of which is shown in fig. 1-6, and the device comprises a cylinder 1 with a hollow inner part, fixing parts are respectively and longitudinally arranged in four directions of 0 degrees, 90 degrees, 180 degrees and 270 degrees of the cylinder, each fixing part is provided with a plurality of screw holes I2, the central distance between every two screw holes I on the fixing parts of 0 degrees, 90 degrees and 180 degrees of the cylinder is equal to the sum of the diameter of two screw holes I and the outer diameter of 2 times of the spiral coil, the central distance between every two screw holes I on the outermost side of one end of the fixing parts of 270 degrees of the cylinder is equal to the sum of the outer diameter of the spiral coil and the diameter of the screw holes I, the central distance between every two other screw holes I is equal to the sum of the diameter of two screw holes I and the outer diameter of 2 times of the spiral coil, a rectangular fixing block 3 is arranged on each fixing block, the number of the screw holes on the fixing part corresponding to the fixing block is arranged on each fixing block, And the screw holes 7 are consistent in position and size, the spiral coil 5 is fixed between the cylinder 1 and the fixed block 3 through the screws 4 and the nuts 6 in a matching mode, the contact part of the screws and the spiral coil is a smooth surface, and the cylinder and the fixed block are made of high-temperature-resistant austenitic stainless steel.
In this embodiment, the cylinder is clockwise turned into the inner hole of the spiral coil pipe, the fixing block 3 is tightly attached to the outer side of the spiral coil pipe 6, the second screw hole 7 on the fixing block 3 and the first screw hole 2 on the cylinder 1 are positioned on the same vertical plane, and the screw 4 penetrates through the second screw hole 2 on the fixing block 3 and the first screw hole 2 on the cylinder 1 and then is reinforced by the nut 6, so that the fixing block 3, the spiral coil pipe 5 and the cylinder 1 are fixed into a whole.
The whole body of the heat treatment process enters the heat treatment furnace to be subjected to high-temperature stress relief heat treatment, the screw 4 and the nut 6 are only required to be unscrewed after the heat treatment is finished, then the spiral coil 5 is rotated anticlockwise, the spiral coil 5 can be separated from the rectangular fixing block 3 and the cylinder 1, and the operation is simple.
In the assembly process of the embodiment, the spiral coil pipe is finished to a certain extent, and in the heat treatment process, the spiral coil pipe can rebound according to the standard required size, so that the size out-of-tolerance caused by excessive rebound can be prevented, and the size during the cold coiling can be corrected.
In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation are all within the protection scope claimed in the present invention.
Claims (5)
1. The utility model provides a spiral coil heat treatment fixing device, includes that inside is hollow drum, its characterized in that: the fixing parts of the cylinder in four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees are respectively and longitudinally provided with a plurality of first screw holes, the fixing part in each direction is provided with a rectangular fixing block, each fixing block is provided with a second screw hole which is consistent with the number, position and size of the screw holes in the corresponding fixing part, and the spiral coil is fixed between the cylinder and the fixing block through the matching of screws and nuts.
2. A spiral coil heat treatment fixture as recited in claim 1, wherein: the central distance between every two screw holes on the fixing parts of the cylinder in the directions of 0 degree, 90 degrees and 180 degrees is equal to the sum of the diameter of one screw hole and 2 times of the outer diameter of the spiral coil.
3. A spiral coil heat treatment fixture as claimed in claim 2, wherein: the center distance between two screw holes on the outermost side of one end of the cylinder at the 270-degree direction fixing part is equal to the sum of the outer diameter of the spiral coil and the diameter of one screw hole, and the center distance between every two other screw holes is equal to the sum of the diameters of the two screw holes and 2 times of the outer diameter of the spiral coil.
4. A spiral coil heat treatment fixture as recited in claim 1, wherein: the contact part of the screw and the spiral coil is a smooth surface.
5. A spiral coil heat treatment fixture as recited in claim 1, wherein: the cylinder and the fixing block are made of high-temperature resistant austenitic stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891843.9U CN214735957U (en) | 2020-12-04 | 2020-12-04 | Spiral coil pipe heat treatment fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891843.9U CN214735957U (en) | 2020-12-04 | 2020-12-04 | Spiral coil pipe heat treatment fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214735957U true CN214735957U (en) | 2021-11-16 |
Family
ID=78619147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022891843.9U Active CN214735957U (en) | 2020-12-04 | 2020-12-04 | Spiral coil pipe heat treatment fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214735957U (en) |
-
2020
- 2020-12-04 CN CN202022891843.9U patent/CN214735957U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204665240U (en) | Steam generator water chamber head structure | |
| CN101504261B (en) | Longitudinal stream integral finned tube | |
| CN111081392B (en) | Integrated solid reactor core adopting heat pipe | |
| CN214735957U (en) | Spiral coil pipe heat treatment fixing device | |
| CN202255024U (en) | Finned tube with external threads and internal spiral grooves | |
| CN104464841A (en) | Thermal insulation plate for built-in steam pressurizer of pressurized water reactor and integrated pressurized water reactor formed by thermal insulation plate | |
| CN101839670B (en) | Inner diversion type self-tightening hanging part of heat exchange tube | |
| CN115143345B (en) | Nuclear power station primary loop pipeline detachable heat preservation and shielding integrated device and use method | |
| CN207178914U (en) | A kind of natural gas line anchor ear | |
| CN101551205A (en) | Spiral fin self-supporting heat exchanger | |
| CN110415853A (en) | Reprocessing plant irradiated fuel assembly stores and transports hanging basket | |
| CN201129967Y (en) | Heat exchanger traverse baffle connecting structure | |
| CN204242595U (en) | The Integrated PWR of the built-in steam pressurizer thermal insulation board of presurized water reactor and formation thereof | |
| CN114917842A (en) | Metal hydride hydrogen storage reactor with corrugated fin structure and hydrogen storage method thereof | |
| CN104344758B (en) | A kind of helical flow anti-deposition inverted U pipe | |
| CN203534310U (en) | Spiral flow type and anti-deposition inverted U-shaped tube | |
| CN102494552B (en) | Hanging component at water inlet end of heat exchange pipe | |
| CN211276317U (en) | Central tube structure of coiled tube type heat exchanger | |
| CN220931685U (en) | Carbon fiber furnace tube structure of high-temperature continuous rotary kiln | |
| CN217083451U (en) | High-pressure-resistance spliced heat exchange tube | |
| CN217898602U (en) | High-temperature-resistant hot-rolling spiral compression spring | |
| CN111678362A (en) | Graphite tube heat exchanger with tube bundle capable of floating freely | |
| CN214304979U (en) | High-temperature-resistant hot-rolling spiral compression spring | |
| CN204853430U (en) | Nuclear electric steaming vapour generator tube sheet | |
| CN215373654U (en) | Heat pipe type reboiling condensation heat exchange device and rectifying tower thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |