CN209148256U - The overcritical working medium turbine-shaft cooling experiment device structure of electric heat source - Google Patents
The overcritical working medium turbine-shaft cooling experiment device structure of electric heat source Download PDFInfo
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- CN209148256U CN209148256U CN201821647205.9U CN201821647205U CN209148256U CN 209148256 U CN209148256 U CN 209148256U CN 201821647205 U CN201821647205 U CN 201821647205U CN 209148256 U CN209148256 U CN 209148256U
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Abstract
The utility model discloses the overcritical working medium turbine-shaft cooling experiment device structures of electric heat source, including electric heating chamber room housing, cryogenic chamber shell, cryogenic chamber end shell, turbine wheel disc, main shaft, shaft end fixed ring, seal section and its fixed ring, several static seals, power positive cathode interface, cryogenic chamber inlet and outlet, high-temperature heat-conductive resistance, binding post, conducting wire, several heat insulating mattress, and temperature sensor, the device is by heating heat input when wheel disc simulates turbine disk actual condition in the indoor thermal resistance of a chamber, cooling working medium is set to pass through the backlash main shaft cooling procedure of seal section and main shaft in another chamber, it is adjusted by the inlet outlet pressure differential to supply voltage and cooling working medium, the simulation to the Real Flow Field state of overcritical working medium turbine wheel disc main shaft two sides can be achieved in the selection in the gap of seal section and main shaft , and then realize the calculating to overcritical each working temperature gradient of working medium turbine wheel disc main shaft.
Description
Technical field
The utility model relates to a kind of overcritical working medium turbine-shaft cooling experiment device structures of electric heat source.
Background technique
In the supercritical carbon dioxide Brayton cycle or the Allam circulatory system of novel middle low power grade, in order to mention
High circulation efficiency, in overcritical working medium turbine wheel disc Temperature of Working generally between 500 to 1300 DEG C, and middle low power grade
Overcritical working medium turbine is small in size, and the shaft end operating temperature of main shaft is less than 200 DEG C, so if turbine-shaft cold air structure is set
It counts unreasonable, will lead to turbine-shaft and be broken and generate serious production accident.Therefore the overcritical working medium in middle low power grade is saturating
In the design process of flat main shaft, its design method is needed to carry out the experimental verification of cooling structure, to ensure the shaft end of main shaft not
There is no the problems in thermal stress collection for overtemperature, main shaft, and then ensure that the main shaft of the overcritical working medium turbine of middle low power grade is set
It is reliable to count Scheme Security.It there is no experimental provision and technology that can carry out to the main shaft of the overcritical working medium turbine of middle low power grade
Cooling experiment.
Summary of the invention
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of overcritical working medium turbine of electric heat source
Main shaft cooling experiment device structure, by designing turbine wheel disc main shaft test section, seal section, several isolation sections, static seal, high temperature
Thermally conductive resistance, cooling fluid inlet and outlet, fixed ring and shell, the thermal power for converting electrical power by several high-temperature heat-conductive resistance
Wheel disc is heated, after wheel disc is heated to specified experimental temperature, cooling working medium is introduced to the housing cavity where main shaft, is made it through
The housing cavity where main shaft is flowed out in the gap of seal section and main shaft after bosher's confrontation main shaft is cooling, and in flow process
The surface heat for having taken away main shaft passes through adjusting, the sealing of the inlet outlet pressure differential of adjusting, cooling working medium to power input power
The simulation to the Real Flow Field state of overcritical working medium turbine wheel disc main shaft two sides can be achieved in the control in the gap of section and main shaft, into
And realize the calculating to overcritical each working temperature gradient of working medium turbine wheel disc main shaft.
The utility model achieves the above object through the following technical schemes:
The overcritical working medium turbine-shaft cooling experiment device structure of electric heat source, including electric heating chamber room housing 1, cryogenic chamber
Shell 2, cryogenic chamber end shell 3, turbine wheel disc 4, main shaft 5, shaft end fixed ring 6, seal section 7, seal section fixed ring 8, wheel
Disk heat insulating mattress 9, wheel disc cryogenic chamber heat insulating mattress 10, main shaft cryogenic chamber static seal 11, positive pole interface 12, power supply are negative
Pole interface 13, cryogenic chamber import 14, cryogenic chamber export 15, high-temperature heat-conductive resistance 16, binding post 17, conducting wire 18, high/low temperature
Chamber heat insulating mattress 19 and multiple temperature sensors, wherein the global shape of electric heating chamber room housing 1 is in an end face aperture
Blank panel shape, ring and a ring ladder of the cryogenic chamber shell 2 by an annulus, one with center hole are constituted, band
There is the ring of center hole to be located in the aperture of 1 end face of electric heating chamber room housing, above-mentioned ring ladder is located at annulus and has
Inside at the link position of the ring of center hole contains one or more 14 Hes of cryogenic chamber import on cryogenic chamber shell 2
One or more cryogenic chamber outlets 15, cryogenic chamber outlet 15 pass through above-mentioned ring ladder, and main shaft 5 is located at cryogenic chamber shell
The inside of 2 ring with center hole, main shaft 5 are had by main shaft cryogenic chamber static seal 11 and cryogenic chamber shell 2
The inner surface of the ring of center hole fastens, and turbine wheel disc 4 is located in heating chamber shell 1, and middle part is connected with main shaft 5, seals
Section fixed ring 8 is annulus, and the outside wall surface of seal section fixed ring 8 and the inner wall of the annulus of cryogenic chamber shell 2 are
Interference fit, there are gap between the inner wall of seal section fixed ring 8 and the outer surface of main shaft 5, it is solid that seal section 7 is fixed on seal section
Determine the inner wall of ring 8, the interior axial end face of seal section fixed ring 8 is fixed by the ring ladder of cryogenic chamber shell 2, low temperature cavity
The outer end face of the annulus side of room housing 2 and the outer axial end face of seal section fixed ring 8 are by cryogenic chamber end shell 3
Fixed, the outer end face of main shaft 5 is by fixed by cryogenic chamber end shell 3 after shaft end fixed ring 6, in cryogenic chamber shell 2
The middle part of the outer end face of the ring of heart circular hole is fastened by wheel disc cryogenic chamber heat insulating mattress 10 and turbine wheel disc 4, cryogenic chamber shell
The outside of the outer end face of the ring of the center hole of body 2 passes through the ring of high/low temperature chamber heat insulating mattress 19 and electric heating chamber room housing 1
The fastening of shape radial end face, the inner face opposite with the aperture of its end face of electric heating chamber room housing 1 are provided with one or more protrusions
Structure, above-mentioned bulge-structure are fastened by wheel disc heat insulating mattress 9 and 4 outer end face of turbine wheel disc, are contained in electric heating chamber room housing 1
One or more positive pole interfaces 12 and one or more power cathode interfaces 13, high-temperature heat-conductive resistance 16 and turbine wheel disc 4
Radial end face be connected, binding post 17 is connected with high-temperature heat-conductive resistance 16, and binding post 17 is connected with conducting wire 18, and conducting wire 18 is pierced by electricity
Source anode interface 12 or power cathode interface 13 are connected with the power electrode on the outside of experimental provision, and multiple temperature sensors are located at saturating
On flat wheel disc 4 and main shaft 5；Described device has an electric heating ring cavity and a low temperature ring cavity, and the electric heating ring cavity is by electricity
The inner surface of heating chamber shell 1, the outer surface of turbine wheel disc 4,10 outer surface of wheel disc cryogenic chamber heat insulating mattress, high/low temperature chamber
The outer surface of room heat insulating mattress 19 surrounds；The low temperature ring cavity by the inner surface of cryogenic chamber shell 2, main shaft 5 outer surface, close
Seal the outer surface of section 7, the inside and outside axial end face of seal section fixed ring 8 and inner surface, cryogenic chamber end shell 3 inner surface,
The outer surface of shaft end fixed ring 6 surrounds；In electric heating ring cavity, the hot merit that converts electrical power by several high-temperature heat-conductive resistance
Rate heats turbine wheel disc 4, by controlling the voltage of positive pole interface 12 and power cathode interface 12, adjusts turbine wheel disc 4
Heat input value, turbine wheel disc 4 transfer heat to main shaft 5, in low temperature ring cavity, pass through control cryogenic chamber outlet 15 and low
The pressure difference of warm chamber inlet 14, adjusts the mass flow for flowing through the cooling working medium of low temperature ring cavity, and main shaft 5 transfers heat to cooling
Working medium obtains the temperature gradient of main shaft under different operating conditions by the temperature of monitoring turbine wheel disc 4 and the hull-skin temperature of main shaft 5
Experimental data.
It further include fixed bracket 20, fixed bracket 20 and electric heating chamber room housing 1 or cryogenic chamber shell 2 or cryogenic chamber
The outer surface of end shell 3 is connected.
Gap between the inner wall of the seal section fixed ring 8 and the outer surface of main shaft 5 is 0.1-5cm.
The turbine wheel disc 4 is that integral type machine-shaping or parts processing nested form connect molding with main shaft 5.
The position of the cryogenic chamber import 14 and cryogenic chamber outlet 15 can exchange.
Temperature sensor, pressure sensing are provided at the cryogenic chamber outlet 15 and 14 position of cryogenic chamber import
Device, flow sensor.
At least one first temperature sensor 21-1 is provided on the radially outer edge anchor ring of the turbine wheel disc 4, in turbine
A second temperature sensor 21-2 is provided at the end face center of wheel disc 4, on corresponding 5 surface of main shaft in one end of seal section 7
Place is provided with third temperature sensor 21-3, is evenly arranged with multiple four on corresponding 5 surface of main shaft in 7 middle part of seal section
Temperature sensor 21-4 is provided with the 5th temperature sensor 21-5 at corresponding 5 surface of main shaft of the other end of seal section 7,
The center point of 5 end circular surface of main shaft is provided with the 6th temperature sensor 21-6.
The quantity of the high-temperature heat-conductive resistance 16 is the even number more than or equal to 4, for three high temperature of arbitrary neighborhood
Thermally conductive resistance 16, intermediate high-temperature heat-conductive resistance 16 pass through the anode of the binding post 17 and conducting wire 18 and heating power supply that are attached thereto
Or cathode is connected, then the two of two sides high-temperature heat-conductive resistance 16 passes through the binding post 17 being attached thereto and conducting wire 18 and heating power supply
Cathode or anode be connected.
Numerical value of the cross-sectional area of the high-temperature heat-conductive resistance 16 from 17 end of binding post to 4 direction of turbine wheel disc becomes
Change trend is first to reduce to increase or first reduce again stable rear increase afterwards.
The utility model has the beneficial effects that:
Currently, there is not yet can be used for solving surpassing in supercritical carbon dioxide Brayton cycle or the Allam circulatory system
The effective technology scheme of the cooling experiment problem of critical working medium heat source turbine wheel disk main shaft.Surpass the utility model proposes electric heat source and faces
Boundary's working medium turbine-shaft cooling experiment device simulates turbine disk reality by heating wheel disc in a closed chamber indoor electric heat source
The heat input when operating condition of border makes cooling working medium pass through the backlash main shaft of seal section and main shaft in another airtight chamber
Cooling procedure is adjusted, the control in the gap of seal section and main shaft by the inlet outlet pressure differential to input electric power and cooling working medium
The simulation to the Real Flow Field state of overcritical working medium turbine wheel disc main shaft two sides can be achieved, and then realize saturating to overcritical working medium
The calculating of flat each working temperature gradient of wheel disc main shaft provides a kind of effective for the cooling experiment of overcritical working medium turbine wheel disc main shaft
Solution.In addition, using the cross-sectional area numerical value change trend from 17 end of binding post to 4 direction of turbine wheel disc first to reduce
The high-temperature heat-conductive resistance for increasing or first reducing again the stable rear shape increased afterwards, can be enhanced the heat production of high-temperature heat-conductive resistance 16
Ability and the capacity of heat transmission to turbine wheel disc；Two end faces of cryogenic chamber shell 2 respectively with wheel disc cryogenic chamber heat insulating mattress
10 are connected with high/low temperature chamber heat insulating mattress 19, make electric heating chamber room housing 1, turbine wheel disc 4, the indoor High Temperature Gas of electric heating chamber
Body cannot carry out heat conduction to cryogenic chamber shell 2, it is ensured that the heat that cold air is taken away is all from turbine wheel disc 4 to main shaft 5
Heat transfer, it is ensured that the accuracy of experiment.
Detailed description of the invention
Fig. 1 is the schematic diagram of the overcritical working medium turbine-shaft cooling experiment device structure of the utility model electric heat source.
Fig. 2 is the high-temperature heat-conductive resistance of the overcritical working medium turbine-shaft cooling experiment device structure of the utility model electric heat source
And its connection relationship diagram.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As depicted in figs. 1 and 2, the overcritical working medium turbine-shaft cooling experiment device structure of the utility model electric heat source, packet
Include electric heating chamber room housing 1, cryogenic chamber shell 2, cryogenic chamber end shell 3, turbine wheel disc 4, main shaft 5, shaft end fixed ring
6, seal section 7, seal section fixed ring 8, wheel disc heat insulating mattress 9, wheel disc cryogenic chamber heat insulating mattress 10, main shaft cryogenic chamber are quiet close
Envelope 11, positive pole interface 12, power cathode interface 13, cryogenic chamber import 14, cryogenic chamber export 15, high-temperature heat-conductive resistance
16, binding post 17, conducting wire 18, high/low temperature chamber heat insulating mattress 19 and multiple temperature sensors, wherein electric heating chamber room housing 1
Global shape is the hollow plate-like of an end face aperture, and cryogenic chamber shell 2 has center hole by an annulus, one
Ring and a ring ladder are constituted, and the ring with center hole is located in the aperture of 1 end face of electric heating chamber room housing, above-mentioned annular
Ladder is located at the inside at the link position of annulus and the ring with center hole, contains one on cryogenic chamber shell 2
Or multiple cryogenic chamber imports 14 and one or more cryogenic chamber outlets 15, cryogenic chamber outlet 15 pass through above-mentioned annular step
Ladder, main shaft 5 are located at the inside of the ring with center hole of cryogenic chamber shell 2, and main shaft 5 passes through main shaft cryogenic chamber static seal
11 are located in heating chamber shell 1 with the inner surface fastening of the ring with center hole of cryogenic chamber shell 2, turbine wheel disc 4,
Its middle part is connected with main shaft 5, and seal section fixed ring 8 is annulus, the outside wall surface and cryogenic chamber shell of seal section fixed ring 8
The inner wall of 2 annulus is interference fit, there are gap between the inner wall of seal section fixed ring 8 and the outer surface of main shaft 5,
Seal section 7 is fixed on the inner wall of seal section fixed ring 8, and the interior axial end face of seal section fixed ring 8 is by cryogenic chamber shell 2
Ring ladder fix, the outer end face of the annulus side of cryogenic chamber shell 2 and the outer axial end face of seal section fixed ring 8 are equal
Fixed by cryogenic chamber end shell 3, the outer end face of main shaft 5 after shaft end fixed ring 6 by cryogenic chamber end shell 3 by being consolidated
Fixed, the middle part of the outer end face of the ring of the center hole of cryogenic chamber shell 2 passes through wheel disc cryogenic chamber heat insulating mattress 10 and turbine
Wheel disc 4 fastens, the outside of the outer end face of the ring of the center hole of cryogenic chamber shell 2 by high/low temperature chamber heat insulating mattress 19 with
The annular radial end face of electric heating chamber room housing 1 fastens, and the inner face opposite with the aperture of its end face of electric heating chamber room housing 1 is set
One or more bulge-structures are equipped with, above-mentioned bulge-structure is fastened by wheel disc heat insulating mattress 9 and 4 outer end face of turbine wheel disc, electricity
Containing one or more positive pole interfaces 12 and one or more power cathode interfaces 13 on heating chamber shell 1, high temperature is led
Thermal resistance 16 is connected with the radial end face of turbine wheel disc 4, and binding post 17 is connected with high-temperature heat-conductive resistance 16, binding post 17 and conducting wire
18 are connected, and conducting wire 18 is pierced by positive pole interface 12 or power cathode interface 13 is connected with the power electrode on the outside of experimental provision,
Multiple temperature sensors are located on turbine wheel disc 4 and main shaft 5；Described device has an electric heating ring cavity and a low temperature ring
Chamber, the electric heating ring cavity are heat-insulated by the inner surface of electric heating chamber room housing 1, the outer surface of turbine wheel disc 4, wheel disc cryogenic chamber
10 outer surface of gasket, high/low temperature chamber heat insulating mattress 19 outer surface surround；The low temperature ring cavity is by cryogenic chamber shell 2
Inner surface, the outer surface of main shaft 5, the outer surface of seal section 7, seal section fixed ring 8 inside and outside axial end face and inner surface, low temperature
The inner surface of chamber end shell 3, the outer surface of shaft end fixed ring 6 surround；In electric heating ring cavity, pass through electrical power several
The thermal power of high-temperature heat-conductive resistance conversion heats turbine wheel disc 4, passes through control positive pole interface 12 and power cathode interface 12
Voltage, adjust the heat input value of turbine wheel disc 4, turbine wheel disc 4 transfers heat to main shaft 5, in low temperature ring cavity, pass through
The pressure difference for controlling cryogenic chamber outlet 15 and cryogenic chamber import 14, adjusts the quality stream for flowing through the cooling working medium of low temperature ring cavity
Amount, main shaft 5 transfer heat to cooling working medium, are obtained not by the temperature of monitoring turbine wheel disc 4 and the hull-skin temperature of main shaft 5
With the experimental data of the temperature gradient of main shaft under operating condition.
It further include fixed bracket 20 as preferred embodiments of the present invention, fixed bracket 20 and electric heating chamber
The outer surface of shell 1 or cryogenic chamber shell 2 or cryogenic chamber end shell 3 is connected.
As preferred embodiments of the present invention, the inner wall of the seal section fixed ring 8 and the appearance of main shaft 5
Gap between face is 0.1-5cm.
As preferred embodiments of the present invention, the turbine wheel disc 4 and main shaft 5 be integral type machine-shaping or
The connection molding of parts processing nested form.
As preferred embodiments of the present invention, the position of the cryogenic chamber import 14 and cryogenic chamber outlet 15
Setting can exchange.
As preferred embodiments of the present invention, the cryogenic chamber outlet 15 and 14 position of cryogenic chamber import
Place is provided with temperature sensor, pressure sensor, flow sensor.
As preferred embodiments of the present invention, it is provided at least on the radially outer edge anchor ring of the turbine wheel disc 4
One the first temperature sensor 21-1, is provided with a second temperature sensor 21-2 at the end face center of turbine wheel disc 4,
One end of seal section 7 is provided with third temperature sensor 21-3 at corresponding 5 surface of main shaft, in the corresponding master in 7 middle part of seal section
Multiple 4th temperature sensor 21-4 are evenly arranged on 5 surface of axis, at corresponding 5 surface of main shaft of the other end of seal section 7
It is provided with the 5th temperature sensor 21-5, the center point of 5 end circular surface of main shaft is provided with the 6th temperature sensor 21-6.
As preferred embodiments of the present invention, the quantity of the high-temperature heat-conductive resistance 16 is more than or equal to 4
Even number, for three high-temperature heat-conductive resistance 16 of arbitrary neighborhood, intermediate high-temperature heat-conductive resistance 16 pass through be attached thereto connect
Terminal 17 and conducting wire 18 are connected with the positive or negative pole of heating power supply, then the two of two sides high-temperature heat-conductive resistance 16 passes through phase therewith
Binding post 17 even and conducting wire 18 are connected with the cathode of heating power supply or anode.
As preferred embodiments of the present invention, the cross-sectional area of the high-temperature heat-conductive resistance 16 is from binding post
The numerical value change trend in 17 ends to 4 direction of turbine wheel disc is first to reduce to increase or first reduce again stable rear increase, Ke Yizeng afterwards
The Thermogenesis of high-temperature heat-conductive resistance 16 and the capacity of heat transmission to turbine wheel disc by force.
The limitation that the technical solution of the utility model is not limited to the above specific embodiments, all skills according to the present utility model
The technology deformation that art scheme is made, each falls within the protection scope of the utility model.
Claims (9)
1. the overcritical working medium turbine-shaft cooling experiment device structure of electric heat source, it is characterised in that: including electric heating chamber room housing
(1), cryogenic chamber shell (2), cryogenic chamber end shell (3), turbine wheel disc (4), main shaft (5), shaft end fixed ring (6), close
Seal section (7), seal section fixed ring (8), wheel disc heat insulating mattress (9), wheel disc cryogenic chamber heat insulating mattress (10), main shaft cryogenic chamber
Static seal (11), positive pole interface (12), power cathode interface (13), cryogenic chamber import (14), cryogenic chamber outlet
(15), high-temperature heat-conductive resistance (16), binding post (17), conducting wire (18), high/low temperature chamber heat insulating mattress (19) and multiple temperature pass
Sensor, wherein the global shape of electric heating chamber room housing (1) be an end face aperture hollow plate-like, cryogenic chamber shell (2) by
One annulus, a ring and a ring ladder with center hole are constituted, and the ring with center hole is located at electricity and adds
In the aperture of hot chamber housing (1) end face, above-mentioned ring ladder is located at the connection position of annulus and the ring with center hole
The inside at place is set, contains one or more cryogenic chamber imports (14) and one or more low temperature cavities on cryogenic chamber shell (2)
Room exports (15), and cryogenic chamber exports (15) and passes through above-mentioned ring ladder, and main shaft (5) is located at having for cryogenic chamber shell (2)
The inside of the ring of center hole, main shaft (5) pass through in the having of main shaft cryogenic chamber static seal (11) and cryogenic chamber shell (2)
The inner surface of the ring of heart circular hole fastens, and turbine wheel disc (4) is located in heating chamber shell (1), and middle part is connected with main shaft (5),
Seal section fixed ring (8) is annulus, the outside wall surface of seal section fixed ring (8) and the annulus of cryogenic chamber shell (2)
Inner wall be interference fit, there are gap, seal sections between the inner wall of seal section fixed ring (8) and the outer surface of main shaft (5)
(7) it is fixed on the inner wall of seal section fixed ring (8), the interior axial end face of seal section fixed ring (8) is by cryogenic chamber shell (2)
Ring ladder fix, the outer end face of the annulus side of cryogenic chamber shell (2) and the outer axial end of seal section fixed ring (8)
Face is fixed by cryogenic chamber end shell (3), the outer end face of main shaft (5) by after shaft end fixed ring (6) by cryogenic chamber end
Portion's shell (3) is fixed, and the middle part of the outer end face of the ring of the center hole of cryogenic chamber shell (2) is heat-insulated by wheel disc cryogenic chamber
Gasket (10) and turbine wheel disc (4) fasten, and the outside of the outer end face of the ring of the center hole of cryogenic chamber shell (2) passes through height
The annular radial end face of cryogenic chamber heat insulating mattress (19) and electric heating chamber room housing (1) fastens, electric heating chamber room housing (1) with
The opposite inner face of the aperture of its end face is provided with one or more bulge-structures, and above-mentioned bulge-structure passes through wheel disc heat insulating mattress
(9) it is fastened with turbine wheel disc (4) outer end face, one or more positive pole interfaces (12) is contained in electric heating chamber room housing (1)
With one or more power cathode interfaces (13), high-temperature heat-conductive resistance (16) is connected with the radial end face of turbine wheel disc (4), wiring
Column (17) is connected with high-temperature heat-conductive resistance (16), and binding post (17) is connected with conducting wire (18), and conducting wire (18) is pierced by positive pole and connects
Mouth (12) or power cathode interface (13) are connected with the power electrode on the outside of experimental provision, and multiple temperature sensors are located at turbine wheel
On disk (4) and main shaft (5)；Described device has an electric heating ring cavity and a low temperature ring cavity, and the electric heating ring cavity is by electricity
The inner surface of heating chamber shell (1), the outer surface of turbine wheel disc (4), wheel disc cryogenic chamber heat insulating mattress (10) outer surface, height
The outer surface of cryogenic chamber heat insulating mattress (19) surrounds；Inner surface, main shaft of the low temperature ring cavity by cryogenic chamber shell (2)
(5) outer surface of outer surface, seal section (7), seal section fixed ring (8) inside and outside axial end face and inner surface, cryogenic chamber
The inner surface of end shell (3), the outer surface of shaft end fixed ring (6) surround；In electric heating ring cavity, pass through electrical power several
The thermal power of high-temperature heat-conductive resistance conversion heats turbine wheel disc (4), is connect by control positive pole interface (12) and power cathode
The voltage of mouth (12) adjusts the heat input value of turbine wheel disc (4), and turbine wheel disc (4) transfers heat to main shaft (5), low
In warm ring cavity, the pressure difference of (15) and cryogenic chamber import (14) is exported by control cryogenic chamber, adjusting flows through low temperature ring cavity
The mass flow of cooling working medium, main shaft (5) transfer heat to cooling working medium, by the temperature and the master that monitor turbine wheel disc (4)
The hull-skin temperature of axis (5) obtains the experimental data of the temperature gradient of main shaft under different operating conditions.
2. the overcritical working medium turbine-shaft cooling experiment device structure of electric heat source according to claim 1, it is characterised in that:
It further include fixed bracket (20), fixed bracket (20) and electric heating chamber room housing (1) or cryogenic chamber shell (2) or cryogenic chamber
The outer surface of end shell (3) is connected.
3. the overcritical working medium turbine-shaft cooling experiment device structure of electric heat source according to claim 1, it is characterised in that:
Gap between the inner wall of the seal section fixed ring (8) and the outer surface of main shaft (5) is 0.1-5cm.
4. the overcritical working medium turbine-shaft cooling experiment device structure of electric heat source according to claim 1, it is characterised in that:
The turbine wheel disc (4) is that integral type machine-shaping or parts processing nested form connect molding with main shaft (5).
5. the overcritical working medium turbine-shaft cooling experiment device structure of electric heat source according to claim 1, it is characterised in that:
The position of the cryogenic chamber import (14) and cryogenic chamber outlet (15) can exchange.
6. the overcritical working medium turbine-shaft cooling experiment device structure of electric heat source according to claim 1, it is characterised in that:
The positive pole interface (12), power cathode interface (13), cryogenic chamber export (15) and cryogenic chamber import (14) position
The place of setting is provided with temperature sensor, pressure sensor, flow sensor.
7. the overcritical working medium turbine-shaft cooling experiment device structure of electric heat source according to claim 1, it is characterised in that:
At least one first temperature sensor (21-1) is provided on the radially outer edge anchor ring of the turbine wheel disc (4), in turbine wheel disc
(4) second temperature sensor (21-2) is provided at end face center, in the corresponding main shaft in one end (5) of seal section (7)
It is provided with third temperature sensor (21-3) at surface, is evenly arranged on corresponding main shaft (5) surface in seal section (7) middle part
Multiple 4th temperature sensors (21-4) are provided with the 5th temperature at the corresponding main shaft of the other end (5) surface of seal section (7)
Sensor (21-5), in main shaft (5) end, the center point of circular surface is provided with the 6th temperature sensor (21-6).
8. the overcritical working medium turbine-shaft cooling experiment device structure of electric heat source according to claim 1, it is characterised in that:
The quantity of the high-temperature heat-conductive resistance (16) is the even number more than or equal to 4, for three high-temperature heat-conductive electricity of arbitrary neighborhood
It hinders (16), intermediate high-temperature heat-conductive resistance (16) is passing through the binding post (17) being attached thereto and conducting wire (18) and heating power supply just
Pole or cathode are connected, then the two of two sides high-temperature heat-conductive resistance (16) pass through the binding post (17) being attached thereto and conducting wire (18) and
The cathode or anode of heating power supply are connected.
9. the overcritical working medium turbine-shaft cooling experiment device structure of electric heat source according to claim 1, it is characterised in that:
The cross-sectional area of the high-temperature heat-conductive resistance (16) holds the numerical value change to turbine wheel disc (4) direction to become from binding post (17)
Gesture is first to reduce to increase or first reduce again stable rear increase afterwards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821647205.9U CN209148256U (en) | 2018-10-11 | 2018-10-11 | The overcritical working medium turbine-shaft cooling experiment device structure of electric heat source |
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| CN201821647205.9U CN209148256U (en) | 2018-10-11 | 2018-10-11 | The overcritical working medium turbine-shaft cooling experiment device structure of electric heat source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186986A (en) * | 2018-10-11 | 2019-01-11 | 西安热工研究院有限公司 | The overcritical working medium turbine-shaft cooling experiment device of electric heat source |
| CN117169033A (en) * | 2023-09-08 | 2023-12-05 | 北京二七铁丰龙科技有限公司 | High-temperature wear-resistant testing machine for simulating hot rolling working environment |
-
2018
- 2018-10-11 CN CN201821647205.9U patent/CN209148256U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186986A (en) * | 2018-10-11 | 2019-01-11 | 西安热工研究院有限公司 | The overcritical working medium turbine-shaft cooling experiment device of electric heat source |
| CN109186986B (en) * | 2018-10-11 | 2023-07-25 | 西安热工研究院有限公司 | Electric heat source supercritical working medium turbine main shaft cooling experimental device |
| CN117169033A (en) * | 2023-09-08 | 2023-12-05 | 北京二七铁丰龙科技有限公司 | High-temperature wear-resistant testing machine for simulating hot rolling working environment |
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