CN210042257U - Hot-jacket type thrust collar heating device for hydropower station - Google Patents
Hot-jacket type thrust collar heating device for hydropower station Download PDFInfo
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- CN210042257U CN210042257U CN201920693286.4U CN201920693286U CN210042257U CN 210042257 U CN210042257 U CN 210042257U CN 201920693286 U CN201920693286 U CN 201920693286U CN 210042257 U CN210042257 U CN 210042257U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 150
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The hot-sleeve thrust collar heating device for the hydropower station comprises a plurality of heating sheets, wherein the inner walls of the heating sheets are of cambered surface structures, the plurality of heating sheets are spliced end to form a heating ring, and the diameter of a channel opening of the heating ring is gradually narrowed along the direction of a central axis; every heating plate is embedded to have a heating element, and every heating plate outer wall is equipped with the power inlet wire box, and the binding post electricity in heating element and the power inlet wire box is connected. The device replaces the heating mode of the existing heating plate to ensure that the thrust collar is heated uniformly, safely and reliably, ensure the safety of operators and improve the maintenance efficiency.
Description
Technical Field
The utility model belongs to the technical field of power station thrust collar heating dismouting, in particular to power station hot jacket formula thrust collar heating device.
Background
The thrust head and the main shaft of the hydropower station unit are installed by a hot sleeve, and can be disassembled and installed after being heated and expanded. At present, when a unit is overhauled, an electric heating plate is laid on a thrust head to be directly heated, the method has the defects of nonuniform heating, difficulty in temperature control, easiness in burning the thrust head in the heating process, surface material change, deformation and the like, and the electric heating plate has no protective measures and has certain potential safety hazards.
Therefore, it is necessary to design a set of dedicated thrust collar heating device to satisfy the requirement of quick heating of the thrust collar and ensure the personal safety of the working personnel.
SUMMERY OF THE UTILITY MODEL
In view of the technical problem that the background art exists, the utility model provides a power station hot jacket formula thrust collar heating device replaces present hot plate heating mode to guarantee that the thrust collar is heated evenly, safe and reliable, guarantee operation personnel safety improves maintenance efficiency.
In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:
the hot-sleeve thrust collar heating device for the hydropower station comprises a plurality of heating sheets, wherein the inner walls of the heating sheets are of cambered surface structures, the plurality of heating sheets are spliced end to form a heating ring, and the diameter of a channel opening of the heating ring is gradually narrowed along the direction of a central axis; every heating plate is embedded to have a heating element, and every heating plate outer wall is equipped with the power inlet wire box, and the binding post electricity in heating element and the power inlet wire box is connected.
In the preferred scheme, heating element include the hot plate, be equipped with the heating wire in the hot plate, every heating plate inner wall is equipped with vertically and horizontally staggered's hot plate standing groove, the hot plate inlays in the hot plate standing groove, hot plate standing groove inner wall is equipped with the insulating layer.
In the preferred scheme, every heating plate outer wall be equipped with the inlet wire safety cover, be equipped with the power cord in the inlet wire safety cover, power cord one end is connected with binding post in the power inlet wire box, the power cord other end is connected with heating element.
In a preferred scheme, each heating sheet is provided with a temperature measuring hole, and the temperature measuring holes penetrate through the inner wall and the outer wall of the heating sheet.
In a preferred scheme, the temperature measuring hole is used for inserting a thermal resistor.
In a preferred scheme, a lifting lug is arranged on the upper end face of each heating sheet.
In a preferred scheme, the lower end face of each heating sheet is provided with a supporting leg.
In the preferred scheme, an electric wire fixing support is arranged on the outer wall of each heating sheet and is positioned below the power supply wire inlet box.
In the preferred scheme, two adjacent heating sheets are fixed through bolts, the bolts are arranged on connecting plates, and the connecting plates are fixed at two ends of the heating sheets.
This patent can reach following beneficial effect:
1. the traditional thrust collar heating mode is that a heating plate is directly used for heating the thrust collar, heating is uneven, and local temperature is too high; the heating assembly is embedded in the inner wall of the heating ring, the thrust collar is heated through the heating ring uniformly, and deformation of the thrust collar due to nonuniform heating is effectively prevented;
2. the heating ring is formed by splicing a plurality of heating sheets, so that the device is easy to mount and dismount, and the safety of operation is improved; if integral hoisting is adopted, the hoisting weight is large, and the hoisting difficulty is large;
3. the heat insulation layer is arranged in the device, so that heat loss is reduced, the heating time of the thrust head is reduced, and the heat utilization rate is improved.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is an overall structure diagram of the present invention;
FIG. 2 is a schematic view of the present invention, showing the heating ring mounted on the thrust head;
fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure: heating ring 1, heating wire standing groove 101, heating element 2, lug 3, thermal resistance 4, temperature measurement hole 401, power inlet box 5, inlet wire safety cover 6, landing leg 7, electric wire fixed bolster 8, power cord 9, connecting plate 10.
Detailed Description
The preferable scheme is as shown in fig. 1 to 3, the hydropower station hot-jacketed thrust collar heating device comprises a plurality of heating sheets, the inner walls of the heating sheets are of cambered surface structures, the plurality of heating sheets are spliced end to form a heating ring 1, and the diameter of a channel opening of the heating ring 1 is gradually narrowed along the direction of a central axis; every heating plate is embedded to have heating element 2, and every heating plate outer wall is equipped with power inlet box 5, and heating element 2 is connected with the binding post electricity in the power inlet box 5.
Further, the heating assembly 2 comprises a heating plate, heating wires are arranged in the heating plate, a heating plate placing groove 101 which is criss-cross is formed in the inner wall of each heating sheet, the heating plate is embedded in the heating plate placing groove 101, and a heat insulation layer is arranged on the inner wall of the heating plate placing groove 101;
the heating plate adopts a crawler-type heating plate which is embedded in the heating plate placing groove 101, and the heating plate is not adopted to directly heat the thrust collar, so that the uniformity of the heating process is ensured; the heat insulation layer outside the heating plate adopts an aluminum silicate fiber heat insulation plate.
Furthermore, an incoming line protection cover 6 is arranged on the outer wall of each heating sheet, a power line 9 is arranged in the incoming line protection cover 6, one end of the power line 9 is connected with a wiring terminal in the power supply incoming line box 5, and the other end of the power line 9 is connected with the heating component 2;
the external material of the heating sheet is a stainless steel plate, and the wire inlet protective cover 6 is fixed with the outer wall of the heating sheet in a welding mode; be equipped with a plurality of through wires holes in the inlet wire safety cover 6 and on being located the outer wall of heating plate, power cord 9 includes many cables, includes the stranded electric wire in the every cable, and every strand electric wire is connected with the hot plate electricity respectively, the through wires hole be used for the electric wire in the cross-under power cord 9.
Furthermore, each heating sheet is provided with a temperature measuring hole 401, and the temperature measuring holes 401 penetrate through the inner wall and the outer wall of the heating sheet.
Further, the temperature measuring hole 401 is used for inserting the thermal resistor 4; the thermal resistor 4 adopts a thermal resistor of PT100, the thermal resistor 4 is electrically connected with a temperature transmitter, a resistance value signal of the thermal resistor 4 is converted into an analog current signal, and the analog current signal is converted into a temperature display.
Furthermore, a lifting lug 3 is arranged on the upper end face of each heating sheet; the lifting lugs 3 are in threaded connection with the heating sheets, and each heating sheet is provided with two lifting lugs 3.
Furthermore, the lower end face of each heating plate is provided with a support leg 7, and the support legs 7 are made of a material with low thermal conductivity and insulation, preferably bakelite.
Further, every heating plate outer wall is equipped with electric wire fixed bolster 8, and electric wire fixed bolster 8 is located power inlet box 5 below, and electric wire fixed bolster 8 is epoxy anchor clamps.
Furthermore, two adjacent heating sheets are fixed through bolts, the bolts are arranged on a connecting plate 10, and the connecting plate 10 is fixed at two ends of each heating sheet;
the number of the heating sheets of the device is preferably three, the three heating sheets form a heating ring 1, the heating ring 1 is in a circular hoop shape, the heating ring 1 is provided with two circular openings, the diameter of one circular opening is larger than that of the other circular opening, the inner wall of the heating ring 1 is in a gradually-narrowed structure, the structure is designed according to the structure of a thrust collar, the gradient of the thrust collar is large, and the gradient of the inner wall of the heating ring 1 provided by the device is large;
the size of the heating ring 1 can be finely adjusted in the following way: at the junction of two adjacent heating plates, the opening size of the heating ring 1 is increased by adding a spacer.
The installation method of the whole device is as follows:
hoisting the heating sheets one by one to tightly attach to the side wall of the thrust collar, wherein the supporting legs 7 are required to avoid bolt holes at the bottom of the thrust collar so as to prevent the center of gravity of the supporting legs 7 from shifting after sliding in;
after the three heating sheets are hoisted, adjusting gaps through gaskets, fixing two adjacent heating sheets by using bolts, and fixing the three heating sheets to form a heating ring 1;
a power supply inlet wire socket is arranged at the bottom of the power supply inlet box 5, an external power supply is inserted into the socket at the bottom of the power supply inlet box 5 through a plug, and a cable of the external power supply is fixed by using the electric wire fixing support 8;
the other end of the external power supply is connected with the controlled silicon temperature control cabinet;
after the power supply is checked to be error-free, the power supply is switched on, the output voltage is firstly adjusted to be half of the rated value, the temperature controller in the silicon controlled rectifier temperature control cabinet is adjusted to set the heating temperature, the indicator lamp is turned on, and heating is started;
after the heat quantity is balanced, the voltage is properly increased, when the heating temperature reaches a set value, the temperature controller automatically cuts off the power supply, the heating body is powered off, the heating indicator lamp is turned off, and the electric heating unit stops heating.
Claims (9)
1. The utility model provides a power station hot jacket formula thrust collar heating device which characterized in that: the heating device comprises a plurality of heating sheets, wherein the inner walls of the heating sheets are of cambered surface structures, the heating sheets are spliced end to form a heating ring (1), and the diameter of a channel opening of the heating ring (1) is gradually narrowed along the direction of a central axis; every heating plate is embedded to have heating element (2), and every heating plate outer wall is equipped with power inlet box (5), and heating element (2) are connected with the binding post electricity in the power inlet box (5).
2. The hot-jacketed thrust collar heating device for the hydropower station according to claim 1, characterized in that: heating element (2) is equipped with the heating wire including the hot plate in the hot plate, and every heating plate inner wall is equipped with vertically and horizontally staggered's hot plate standing groove (101), and the hot plate inlays in hot plate standing groove (101), and hot plate standing groove (101) inner wall is equipped with the insulating layer.
3. The hot-jacketed thrust collar heating device for the hydropower station according to claim 1, characterized in that: every heating plate outer wall is equipped with inlet wire safety cover (6), is equipped with power cord (9) in inlet wire safety cover (6), and power cord (9) one end is connected with the binding post in power inlet box (5), and the power cord (9) other end is connected with heating element (2).
4. The hot-jacketed thrust collar heating device for the hydropower station according to claim 1, characterized in that: each heating sheet is provided with a temperature measuring hole (401), and the temperature measuring holes (401) penetrate through the inner wall and the outer wall of the heating sheet.
5. The hydropower station hot-jacketed thrust collar heating device according to claim 4, characterized in that: the temperature measuring hole (401) is used for inserting the thermal resistor (4).
6. The hot-jacketed thrust collar heating device for the hydropower station according to claim 1, characterized in that: the upper end face of each heating plate is provided with a lifting lug (3).
7. The hot-jacketed thrust collar heating device for the hydropower station according to claim 1, characterized in that: the lower end face of each heating plate is provided with a supporting leg (7).
8. The hot-jacketed thrust collar heating device for the hydropower station according to claim 1, characterized in that: and an electric wire fixing support (8) is arranged on the outer wall of each heating sheet, and the electric wire fixing support (8) is positioned below the power supply wire inlet box (5).
9. The hot-jacketed thrust collar heating device for the hydropower station according to claim 1, characterized in that: the two adjacent heating sheets are fixed through bolts, the bolts are arranged on the connecting plates (10), and the connecting plates (10) are fixed at two ends of the heating sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920693286.4U CN210042257U (en) | 2019-05-15 | 2019-05-15 | Hot-jacket type thrust collar heating device for hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920693286.4U CN210042257U (en) | 2019-05-15 | 2019-05-15 | Hot-jacket type thrust collar heating device for hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210042257U true CN210042257U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920693286.4U Active CN210042257U (en) | 2019-05-15 | 2019-05-15 | Hot-jacket type thrust collar heating device for hydropower station |
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| Country | Link |
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| CN (1) | CN210042257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191520A (en) * | 2019-05-15 | 2019-08-30 | 中国长江电力股份有限公司 | Shrink-fit thrust head heating device and installation method of hydropower station |
| CN111687588A (en) * | 2020-06-18 | 2020-09-22 | 中国航发沈阳发动机研究所 | Bolt pre-positioning device |
-
2019
- 2019-05-15 CN CN201920693286.4U patent/CN210042257U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191520A (en) * | 2019-05-15 | 2019-08-30 | 中国长江电力股份有限公司 | Shrink-fit thrust head heating device and installation method of hydropower station |
| CN111687588A (en) * | 2020-06-18 | 2020-09-22 | 中国航发沈阳发动机研究所 | Bolt pre-positioning device |
| CN111687588B (en) * | 2020-06-18 | 2021-04-16 | 中国航发沈阳发动机研究所 | Bolt pre-positioning device |
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