CN113203501B - Nuclear power main pump thrust shoe temperature measurement probe assembly verification method - Google Patents
Nuclear power main pump thrust shoe temperature measurement probe assembly verification method Download PDFInfo
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- CN113203501B CN113203501B CN202110554237.4A CN202110554237A CN113203501B CN 113203501 B CN113203501 B CN 113203501B CN 202110554237 A CN202110554237 A CN 202110554237A CN 113203501 B CN113203501 B CN 113203501B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/005—Calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/002—Calibrated temperature sources, temperature standards therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a nuclear power main pump thrust tile temperature measurement probe assembly verification method, which comprises the following steps: two temperature measurement thrust tiles are selected to establish a fault equipment model and a normal equipment model; injecting 60-80 ℃ hot oil into the main thrust tile temperature measuring holes and the standby thrust tile temperature measuring holes of the fault equipment model and the normal equipment model, recording the detection data of the thrust tile temperature measuring probe, and establishing a temperature-time curve to obtain two groups of fault reference curves and a group of normal reference curves; and injecting hot oil into the dual-temperature thrust tile to be detected, recording oil temperature data, establishing a temperature-time curve, and comparing and checking the temperature-time curve with a normal reference curve and a fault reference curve to judge faults. The invention can judge whether the temperature measuring probe assembled by the thrust tile is qualified in advance, thereby saving time and manpower.
Description
Technical Field
The invention belongs to the technical field of nuclear power, and relates to a verification method, in particular to an assembly verification method for a temperature measurement probe of a thrust shoe of a nuclear power main pump.
Background
The nuclear power main pump bearing temperature measuring probe is a thermocouple or a thermal resistor and is used for indirectly measuring the temperature of the thrust bush in a non-contact mode, and when the temperature measuring element probe is not in contact with the temperature measuring hole of the thrust bush, the temperature measured by the temperature measuring element is actually the temperature of oil in the temperature measuring hole; if the temperature measuring element probe contacts with the temperature measuring hole of the thrust tile, the measured temperature is higher than that of the wall of the temperature measuring hole of the non-contact thrust tile, because the tungsten-gold surface of the thrust tile rubs with lubricating oil to generate heat, the heat of the tungsten-gold surface is transferred to the thrust tile body, and the oil in the temperature measuring hole circularly flows through the two phi 3 holes, namely the measured temperature of the temperature measuring element is the dynamic temperature of the oil in the temperature measuring hole. In the actual operation process of the main pump, the main and standby temperature differences of the main pushing or the lower thrust tiles of the main pump motor are found to be larger (about 10 degrees at maximum), so that the judgment of the temperature of the main pump motor by operators is influenced; in addition, the bearing temperature measuring probe is arranged inside the motor, and in order to thoroughly solve the problem, the motor bearing must be disassembled for treatment, which consumes huge manpower and financial resources.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides a method for assembling and checking the temperature measurement probe of the thrust shoe of a nuclear power main pump, which can judge whether the temperature measurement probe assembled by the thrust shoe is qualified or not in advance, and the problem of installing the temperature measurement probe of the thrust shoe is found in the motor manufacturing process.
The technical scheme adopted for solving the technical problems is as follows: a nuclear power main pump thrust tile temperature measurement probe assembly verification method comprises the following steps:
s1, establishing a temperature measurement probe assembly verification model: selecting two temperature-measuring thrust tiles as objects, and respectively establishing a fault equipment model and a normal equipment model;
the fault equipment model comprises a wall-contact fault equipment model and two wall-contact fault equipment models, wherein the wall-contact fault equipment model is the wall of one of the thrust tile temperature measuring probes contacts the wall of the temperature measuring hole after assembly, and the other thrust tile temperature measuring probe does not lean against the wall; the two-contact wall fault equipment model is that after assembly, two thrust tile temperature measuring probes are contacted with the wall of a temperature measuring hole;
the normal equipment model is that after assembly, the two thrust tile temperature measuring probes are not contacted with the wall of the temperature measuring hole;
s2, establishing a fault reference curve: injecting 60-80 ℃ hot oil into the main thrust tile temperature measuring holes and the standby thrust tile temperature measuring holes of the two fault equipment models respectively, recording detection data of two temperature measuring probes, and establishing a temperature-time curve to obtain two groups of fault reference curves;
s3, establishing a normal reference curve: injecting 60-80 ℃ hot oil into a main thrust tile temperature measuring hole and a standby thrust tile temperature measuring hole of a normal equipment model, recording detection data of two temperature measuring probes, and establishing a temperature-time curve to obtain a group of normal reference curves;
s4, checking: and (3) injecting hot oil at 60-80 ℃ into the dual-temperature thrust tile to be detected, recording detection data of two temperature measuring probes, establishing a temperature-time curve to obtain a group of detection curves, comparing the detection curves with a normal reference curve and a fault reference curve, judging that the detection curves are faulty when the line shape of the detection curves is consistent with the line shape of the fault reference curve or the rising phase coincidence degree of the same group of temperature-time curves is lower than a preset value, disassembling, checking and trimming the temperature measuring probes of the thrust tile, and checking again after assembly until the line shape of the detection curves is consistent with the normal reference curve or the rising phase coincidence degree of the same group of temperature-time curves is higher than the preset value, and judging that the detection curves are normal.
Further, in the method for assembling and checking the temperature measurement probe of the thrust shoe of the nuclear power main pump, preferably in the step S1, the establishing a model of the temperature measurement probe assembling and checking device includes: selecting two temperature measuring thrust tiles as objects, respectively forming observation holes for observing the positions of temperature measuring probes of the thrust tiles on non-working surfaces of the thrust tiles, and arranging plugging pieces for plugging the observation holes; and setting a thrust tile temperature measuring probe according to the model requirement, bending the thrust tile temperature measuring probe until the thrust tile temperature measuring probe contacts with the wall of the temperature measuring hole after being assembled, and keeping the rest thrust tile temperature measuring probes in a non-contact state with the wall of the temperature measuring hole.
In the assembling and checking method of the thrust shoe temperature measuring probe of the nuclear power main pump, preferably in the step S1, the thrust shoe temperature measuring probe is bent at the middle part or/and the front part so as to be attached to the wall of the temperature measuring hole.
In the assembling and checking method of the temperature measuring probe of the thrust bush of the nuclear power main pump, in the step S1, the two temperature measuring probes of the thrust bush are directly observed or sent into an endoscope for observation through an observation hole and whether the two temperature measuring probes touch the wall is confirmed; plugging the observation hole after meeting the requirements;
wherein, a touch wall fault equipment model confirms: one thrust tile temperature measuring probe touches the wall, and the other thrust tile temperature measuring probe does not touch the wall;
and (3) confirming a two-touch wall fault equipment model: the two thrust tile temperature measuring probes touch the wall;
confirmation in normal device model: neither of the two thrust shoe temperature measuring probes contacts the wall of the temperature measuring hole.
In the assembling and checking method of the temperature measuring probe of the nuclear power main pump thrust tile, preferably, in the step S1, the observation hole is inclined or perpendicular to the side wall surface of the temperature measuring hole of the thrust tile, and the observation hole corresponds to the front part of the temperature measuring probe of the thrust tile.
In the method for assembling and verifying the temperature measuring probe of the thrust bush of the nuclear power main pump, preferably, the observation hole is a screw hole, and the plugging piece is a plug.
Further, in the method for assembling and checking the temperature measurement probe of the thrust shoe of the nuclear power main pump, preferably in the step S1, the oiling speed satisfies: the fluctuation disorder of the detected temperature data is not caused.
In the assembling and checking method of the temperature measuring probe of the thrust shoe of the nuclear power main pump, preferably in the step S2, the difference between the temperatures of hot oil injected into all the temperature measuring holes of the thrust shoe in the two fault equipment models is not more than 2 ℃; in the step S3, the temperature difference between the temperature of the hot oil injected into the temperature measuring hole of the thrust tile of the normal equipment model and the temperature of the hot oil in the step S2 is not more than 2 ℃.
In the method for assembling and checking the temperature measurement probe of the thrust shoe of the nuclear power main pump, preferably, in the step S4, the temperature of the hot oil injected into the dual-temperature thrust shoe to be detected is different from the temperature of the hot oil in the step S2 by not more than 2 ℃.
The invention can judge whether the temperature measuring probe assembled by the main thrust tile and the auxiliary thrust tile is qualified or not, and avoid the problem that the temperature difference of the thrust tiles is found or the temperature is higher after the motor is completely assembled and operated; firstly, a fault equipment model and a normal equipment model are established, and a fault reference curve and a normal reference curve are obtained through hot oil injection; and the temperature-time curve is obtained by injecting hot oil into the equipment to be detected and is compared with a fault reference curve and a normal reference curve, namely whether the temperature measuring probe of the thrust tile is qualified or not is verified, and the labor and time are saved.
Because the temperature of the thrust tile is raised slowly in the process of injecting the hot oil, if the temperature measuring probe is contacted with the temperature measuring tile hole of the thrust tile, the temperature measured by the temperature measuring probe of the thrust tile is lower than the temperature measured by the temperature measuring element which is normally assembled in the process of raising the temperature of the temperature measuring probe of the thrust tile; the assembly of the temperature measuring probe of the thrust tile can be verified whether to be qualified or not by a hot oil injection method.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a build model according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another embodiment of the invention;
FIG. 3 is a graph of temperature versus time for a touch wall in a fault device model according to an embodiment of the present invention;
FIG. 4 is a graph of temperature versus time for a two touch wall in a fault device model in accordance with an embodiment of the present invention;
FIG. 5 is a temperature versus time plot of a normal device model of an embodiment of the present invention;
fig. 6-7 are measured temperature-time curves for embodiments of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are directions or positions based on the drawings, and are merely for convenience of description and are not to be construed as limiting the present technical solution. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
A nuclear power main pump thrust tile temperature measurement probe assembly verification method comprises the following steps:
s1, establishing a temperature measurement probe assembly verification model:
the main pump bearing of the nuclear power station is required to be provided with a temperature measuring element for monitoring the temperature of the motor bearing, mainly monitoring the dynamic temperature of oil in a temperature measuring hole of the thrust tile, and the motor is provided with a main temperature measuring thrust tile and a standby temperature measuring thrust tile.
In the embodiment, two temperature measurement thrust tiles (one main tile and one standby tile) are selected as objects, and a fault equipment model and a normal equipment model are respectively established; the fault equipment model comprises a wall-contact fault equipment model and two wall-contact fault equipment models, wherein the wall-contact fault equipment model is the wall of one of the thrust tile temperature measuring probes contacts the wall of the temperature measuring hole after assembly, and the other thrust tile temperature measuring probe does not lean against the wall; the two-contact wall fault equipment model is that after assembly, two thrust shoe temperature measurement probes are in contact with the wall of a temperature measurement hole.
Specifically, the method for establishing the temperature measurement probe assembly verification equipment model is to establish three groups of two temperature measurement thrust tiles, namely a fault equipment model and a normal equipment model, wherein the fault equipment model comprises a wall contact fault equipment model and a two wall contact fault equipment model, each group of two temperature measurement thrust tiles comprises a main one-standby thrust tile temperature measurement probe, two temperature measurement thrust tiles in the fault equipment model comprise a main one-standby thrust tile temperature measurement probe, and two temperature measurement thrust tiles in the normal equipment model also comprise a main one-standby thrust tile temperature measurement probe, so the method for establishing the temperature measurement probe assembly verification equipment model comprises the following specific contents: three two temperature measuring thrust tiles are selected as objects, and as shown in fig. 1-2, a structural schematic diagram of a built model is shown, a thrust tile 100 is provided with a thrust tile temperature measuring hole 200, and a thrust tile temperature measuring probe 500 arranged at the front part of a temperature measuring device is in threaded connection with the thrust tile temperature measuring hole 200 through a plugging head. An observation hole 300 for observing the position of the thrust tile temperature measuring probe 500 is formed on the non-working surface of the thrust tile 100, a plugging piece 400 for plugging the observation hole 300 is arranged, and the observation hole 300 is used for directly observing or feeding into an endoscope for observation and confirming whether the two thrust tile temperature measuring probes 500 touch a wall; plugging the observation hole 300 after meeting the requirements; i.e. two temperature measurement thrust tiles of two groups of fault equipment models and one group of normal equipment models are provided with observation holes 300. Fig. 1 shows the structure of a wall-contact-free thrust tile temperature probe 500, and fig. 2 shows the structure of a wall-contact thrust tile temperature probe 500. The wall-touching thrust shoe temperature measurement probe 500 is achieved by bending the thrust shoe temperature measurement probe 500, and the bending of the thrust shoe temperature measurement probe 500 specifically includes bending the thrust shoe temperature measurement probe 500 at the middle part or/and the front part so as to be attached to the wall of the temperature measurement hole. The invention defines that the free end of the thrust tile temperature measuring probe 500 is the front, and is connected with the data line, because the contact wall point of the thrust tile temperature measuring probe 500 can be at any position from the middle part to the front end of the thrust tile temperature measuring probe 500, preferably the front part of the thrust tile temperature measuring probe 500, the bending position can be bent from the rear part to the front part of the thrust tile temperature measuring probe 500 or at all positions, preferably the middle part or the front part, so that the front part contacts the wall of the temperature measuring hole. Specifically, the nuclear power main pump bearing temperature measuring probe is a thermocouple or a thermal resistor, and the thermocouple probe is bent to be in contact with the wall of the thrust tile temperature measuring hole 200 after being assembled: the bending operation is gentle as much as possible, the bending radius is as large as possible, and the bending amplitude is about 5mm (because the diameter of the temperature measuring hole is 8mm, the bending of 5mm can enable the temperature measuring probe to be in contact with the wall of the temperature measuring hole 200 of the thrust tile). After assembly, endoscopically confirming; and then plugging the screw hole by using a plug.
The function of the viewing aperture 300 is: the observation hole 300 is used for directly observing or sending the two thrust tile temperature measuring probes 500 into an endoscope to observe whether the two thrust tile temperature measuring probes touch the wall, and the observation hole 300 can be used for directly observing, in this case, the observation hole 300 needs to be opened with a larger aperture, and the observation hole 300 needs to be sent into the endoscope for observing, in this way, the aperture of the observation hole 300 is slightly larger than the outer diameter of the endoscope, so that the convenience of the access of the endoscope is ensured.
The observation hole 300 is inclined or perpendicular to the side wall surface of the thrust tile temperature measurement hole 200, preferably, the observation hole 300 is perpendicular to the side wall surface of the thrust tile temperature measurement hole 200, and since the contact wall point of the thrust tile temperature measurement probe 500 is generally in the front, the observation hole 300 corresponds to the front of the thrust tile temperature measurement probe 500. Thus, the viewing aperture 300 is of a minimum length to facilitate viewing.
Wall-touch fault device model validation: one thrust tile temperature measurement probe 500 touches the wall, and the other thrust tile temperature measurement probe 500 does not touch the wall; and (3) confirming a two-touch wall fault equipment model: the two thrust tile temperature measuring probes 500 touch the wall; confirmation in normal device model: neither of the two thrust shoe temperature probes 500 contacts the wall of the temperature measurement hole, and then plugs the observation hole 300. The viewing port 300 and the occluding component 400 may be selected from the following embodiments: one is that the observation hole 300 is a screw hole, and the plugging piece 400 is a plug; one is that the viewing aperture 300 is a straight aperture and the closure 400 is a plug with an interference fit.
S2, establishing a fault reference curve: injecting 60-80 ℃ hot oil into a main thrust tile temperature measuring hole and a standby thrust tile temperature measuring hole of the fault equipment model, and recording oil temperature data; the obtained oil temperature data establishes a temperature-time curve as shown in fig. 3-4 as a fault reference curve, and fig. 3 is a touch wall temperature-time curve, as seen in fig. 3: the temperature curve of the contact wall of the thrust tile temperature measuring probe and the thrust tile is always lower than the temperature measured by the other normal thrust tile temperature measuring probe in the temperature rising process. FIG. 4 is a graph of temperature versus time for two wall contact, where the two temperature versus time curves are substantially coincident, but the temperature at the front section is lower, due to the wall contact of both thrust tile thermometric probes.
In the actual operation process, the oiling speed cannot be too fast or too slow, and the oiling speed is generally required to meet the following requirements: the fluctuation disorder of the detected temperature data is not caused. The oiling pipeline is arranged at the opposite side far away from the thrust tile, so that vibration is avoided; the actual oil filling is about 35L/min.
The temperature of the oil is too low to obtain unobvious data change, so that the wall-touching temperature measurement probe and the normal temperature measurement probe cannot be more accurately identified, but the temperature is too high, and the established model does not accord with the highest temperature limit of the actual motor operation, so that the temperature of the hot oil is selected to be 60-80 ℃, preferably 70-80 ℃ and most preferably 80 ℃.
The oil temperature data starts to be continuously measured after being injected into the temperature measuring hole, the data measuring interval time can be set according to the requirement, and the temperature measurement is carried out every 10 seconds in the embodiment.
S3, establishing a normal reference curve: injecting hot oil with the temperature consistent with that of the step S2 into a main thrust tile temperature measuring hole and a standby thrust tile temperature measuring hole of a normal equipment model, and recording oil temperature data; the obtained oil temperature data is established and a temperature-time curve shown in figure 5 is established as a normal reference curve; as can be seen from the figures: the two temperature measuring probes of the thrust tiles are close to each other in the initial temperature rising stage and are coincident or basically coincident on the curve.
Since the fault reference curve is formed under the same conditions as the normal reference curve: and keeping the same temperature and speed of injecting the hot oil consistent, and forming a curve with reference value.
S4, checking: the step is to detect and check the actually operated motor. And C, injecting hot oil with the temperature consistent with that in the step S2 into the double-temperature thrust tile to be detected, recording oil temperature data, establishing a temperature-time curve, comparing the temperature-time curve with a normal reference curve and a fault reference curve, judging that the temperature-time curve is faulty when the line shape consistent with the fault reference curve or the rising phase coincidence degree of the same group of temperature-time curves is lower than a preset value, disassembling, checking and trimming the temperature measuring probe of the thrust tile, and checking again after assembly until the temperature-time curve is consistent with the normal reference curve or the rising phase coincidence degree of the same group of temperature-time curves is higher than the preset value, and judging that the temperature-time curve is normal. The preset value can have different requirements according to different devices and can be determined according to practice.
According to the linear characteristics, if touching the wall, the temperature is lower in the initial rising stage of the temperature. Compared with the synchronous temperature of the non-contact wall temperature measuring probe, the contact wall can be basically determined if the temperature difference exceeds 1 ℃ in a period of time.
Fig. 6-7 show the actual measurement results of the main pump bearing thrust pad temperature measuring probe checked by a unit of a certain nuclear power plant. The graph in fig. 6 is basically the same as the graph in fig. 3, and one curve is always lower than the other temperature in the temperature rising process, so that the wall contact of one of the thrust tile temperature measuring probes is illustrated, and as can be seen from the graph, the thrust tile temperature measuring probe of the standby thrust tile is contacted with the thrust tile, and the front end of the thrust tile temperature measuring probe of the standby thrust tile is found to be bent through disassembly inspection, so that the front end contacts the wall, and the temperature curve reflected in the graph is always lower than the temperature measured by the other normally assembled thrust tile temperature measuring probe in the temperature rising process. And finishing the temperature measuring probe of the thrust tile, and checking again after assembly to obtain a curve shown in fig. 7, wherein the curve is consistent with the normal reference curve line shape, and judging that the temperature measuring probe of the thrust tile is assembled normally.
Claims (10)
1. The method for assembling and checking the temperature measurement probe of the thrust shoe of the nuclear power main pump is characterized by comprising the following steps of:
s1, establishing a temperature measurement probe assembly verification model: selecting two temperature-measuring thrust tiles as objects, and respectively establishing a fault equipment model and a normal equipment model;
the fault equipment model comprises a wall-contact fault equipment model and two wall-contact fault equipment models, wherein the wall-contact fault equipment model is the wall of one of the thrust tile temperature measuring probes contacts the wall of the temperature measuring hole after assembly, and the other thrust tile temperature measuring probe does not lean against the wall; the two-contact wall fault equipment model is that after assembly, two thrust tile temperature measuring probes are contacted with the wall of a temperature measuring hole;
the normal equipment model is that after assembly, the two thrust tile temperature measuring probes are not contacted with the wall of the temperature measuring hole;
s2, establishing a fault reference curve: injecting 60-80 ℃ hot oil into the main thrust tile temperature measuring holes and the standby thrust tile temperature measuring holes of the two fault equipment models respectively, recording detection data of two temperature measuring probes, and establishing a temperature-time curve to obtain two groups of fault reference curves;
s3, establishing a normal reference curve: injecting 60-80 ℃ hot oil into a main thrust tile temperature measuring hole and a standby thrust tile temperature measuring hole of a normal equipment model, recording detection data of two temperature measuring probes, and establishing a temperature-time curve to obtain a group of normal reference curves;
s4, checking: and (3) injecting hot oil at 60-80 ℃ into the dual-temperature thrust tile to be detected, recording detection data of two temperature measuring probes, establishing a temperature-time curve to obtain a group of detection curves, comparing the detection curves with a normal reference curve and a fault reference curve, judging that the detection curves are faulty when the line shape of the detection curves is consistent with the line shape of the fault reference curve or the rising phase coincidence degree of the same group of temperature-time curves is lower than a preset value, disassembling, checking and trimming the temperature measuring probes of the thrust tile, and checking again after assembly until the line shape of the detection curves is consistent with the normal reference curve or the rising phase coincidence degree of the same group of temperature-time curves is higher than the preset value, and judging that the detection curves are normal.
2. The method for assembling and checking the temperature probe of the thrust collar of the nuclear power main pump according to claim 1, wherein in the step S1, the step of establishing the model of the temperature probe assembling and checking device comprises the steps of: selecting two temperature measuring thrust tiles as objects, respectively forming observation holes for observing the positions of temperature measuring probes of the thrust tiles on non-working surfaces of the thrust tiles, and arranging plugging pieces for plugging the observation holes; and setting a thrust tile temperature measuring probe according to the model requirement, bending the thrust tile temperature measuring probe until the thrust tile temperature measuring probe contacts with the wall of the temperature measuring hole after being assembled, and keeping the rest thrust tile temperature measuring probes in a non-contact state with the wall of the temperature measuring hole.
3. The method for assembling and checking the temperature probe of the thrust collar of the nuclear power main pump according to claim 2, wherein in the step S1, the temperature probe of the thrust collar is bent at the middle part or/and the front part to be attached to the wall of the temperature measuring hole.
4. The method for assembling and checking the temperature measurement probes of the thrust tiles of the nuclear power main pump according to claim 2, wherein in the step S1, whether the two temperature measurement probes of the thrust tiles touch the wall is directly observed through an observation hole or is observed through an endoscope and confirmed; plugging the observation hole after meeting the requirements;
wherein, a touch wall fault equipment model confirms: one thrust tile temperature measuring probe touches the wall, and the other thrust tile temperature measuring probe does not touch the wall;
and (3) confirming a two-touch wall fault equipment model: the two thrust tile temperature measuring probes touch the wall;
confirmation in normal device model: neither of the two thrust shoe temperature measuring probes contacts the wall of the temperature measuring hole.
5. The method according to claim 2, wherein in the step S1, the observation hole is inclined or perpendicular to a sidewall surface of the thrust tile temperature measurement hole, and the observation hole corresponds to a front portion of the thrust tile temperature measurement probe.
6. The method for assembling and verifying the temperature measurement probe of the nuclear power main pump thrust collar of claim 2, wherein the observation hole is a screw hole, and the plugging piece is a plug.
7. The method for assembling and verifying the temperature measurement probe of the thrust shoe of the nuclear power main pump according to claim 1, wherein in the steps S2-S4, the temperature of the hot oil is 70-80 ℃.
8. The method for assembling and checking the temperature measurement probe of the thrust shoe of the nuclear power main pump according to claim 1, wherein in the step S1, the oil injection speed is as follows: the fluctuation disorder of the detected temperature data is not caused.
9. The method for assembling and checking the temperature measurement probe of the thrust shoe of the nuclear power main pump according to claim 1, wherein in the step S2, the difference between the temperatures of injecting hot oil into all the temperature measurement holes of the thrust shoe in the two fault equipment models is not more than 2 ℃; in the step S3, the temperature difference between the temperature of the hot oil injected into the temperature measuring hole of the thrust tile of the normal equipment model and the temperature of the hot oil in the step S2 is not more than 2 ℃.
10. The method for assembling and checking the temperature probe of the nuclear power main pump thrust tile according to claim 1, wherein in the step S4, the temperature of injecting the hot oil into the dual-temperature thrust tile to be detected is different from the temperature of the hot oil in the step S2 by not more than 2 ℃.
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