CN213748819U - AP1000 nuclear power station temperature measurement system - Google Patents
AP1000 nuclear power station temperature measurement system Download PDFInfo
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- CN213748819U CN213748819U CN202022856307.5U CN202022856307U CN213748819U CN 213748819 U CN213748819 U CN 213748819U CN 202022856307 U CN202022856307 U CN 202022856307U CN 213748819 U CN213748819 U CN 213748819U
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- thermal resistance
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- temperature sleeve
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Abstract
The utility model provides a AP1000 nuclear power station temperature measurement system, including connecting the circulating water pipeline between condenser and circulating water pump, its characterized in that, the last welded fastening of circulating water pipeline stretches into the fixed pipe fitting of thermal resistance in the pipeline, and in the fixed pipe fitting of thermal resistance was inserted to the measuring end of anti vibration temperature thermal resistance, and anti vibration temperature thermal resistance was fixed with the fixed pipe connection of thermal resistance, and the data acquisition cable of anti vibration temperature thermal resistance links to each other with power station control system PLS. The utility model discloses an increase the mounting means of high strength spring in the temperature thermal resistance and adopt reverse plug encapsulation PT100 sensor probe, promote the anti vibration performance of temperature thermal resistance, make the long-time steady operation of temperature thermal resistance can be in the environment of vibration, monitoring temperature information.
Description
Technical Field
The utility model relates to a temperature measurement system especially relates to a temperature measurement system that AP1000 nuclear power station used.
Background
Some temperature thermal resistors in the AP1000 nuclear power plant may be in a vibration state in stages or for a long time due to system operation and environmental reasons, the vibration frequency and amplitude of these thermal resistors exceed a normal range, and the vibration cannot be eliminated. Because the conventional temperature measuring system of the AP1000 nuclear power station adopts the common thermal resistor, the conventional temperature measuring system of the AP1000 nuclear power station cannot stably operate for a long time.
Disclosure of Invention
The utility model aims at: the AP1000 nuclear power station temperature measuring system can stably operate for a long time.
In order to achieve the above object, the technical scheme of the utility model a AP1000 nuclear power station temperature measurement system is provided, including connecting the circulating water pipeline between condenser and circulating water pump, its characterized in that, welded fastening stretches into the fixed pipe fitting of thermal resistance in the pipeline on the circulating water pipeline, and the measuring end of anti vibration temperature thermal resistance inserts in the fixed pipe fitting of thermal resistance, and anti vibration temperature thermal resistance is fixed with the fixed pipe connection of thermal resistance, and the data acquisition cable of anti vibration temperature thermal resistance links to each other with power station control system PLS.
Preferably, the anti-vibration temperature thermal resistor comprises a stud with a first external thread and a second external thread at two ends respectively; the stud is fixedly connected with the thermal resistance fixing pipe fitting through a first external thread; an internal thread is arranged in the end part of the stud provided with the external thread II; a temperature sleeve is arranged in the stud in a penetrating way; the end part of the temperature sleeve on the same side with the external thread is the measuring end, and the other end of the temperature sleeve is a connecting end;
a PT100 sensor probe is arranged in the measuring end of the temperature sleeve, the data acquisition cable is also arranged in the temperature sleeve, one end of the data acquisition cable is connected with the PT100 sensor probe, and the other end of the data acquisition cable is led out from the connecting end of the temperature sleeve;
the connecting end of the temperature sleeve is a cold end joint; a spring fixing step is arranged at the connecting end of the temperature sleeve, and a nut with an external thread III is sleeved at the end part of the connecting end of the temperature sleeve; a spring is sleeved outside the part of the temperature sleeve between the spring fixing step and the nut, and two ends of the spring are respectively abutted against the spring fixing step and the nut; the external thread III of the nut is matched with the internal thread of the temperature sleeve, so that the temperature sleeve is fixed in the stud;
after the stud is connected and fixed with the thermal resistance fixing pipe fitting, the measuring end of the temperature sleeve is abutted against the bottom of the thermal resistance fixing pipe fitting, so that the temperature sleeve is pushed to move axially to enable the spring to be stressed and compressed.
Preferably, the connection end of the data acquisition cable is connected with a junction box after being led out from the temperature bushing, and the junction box is connected with the power station control system PLS.
Preferably, the junction box is fixedly connected with the stud through the second external thread.
Preferably, a positioning seat connected with the spring fixing step is arranged on the temperature sleeve, and a positioning block fixedly connected with the inner wall of the stud is sleeved in the middle of the temperature sleeve; when the external thread III of the nut is matched with the internal thread of the temperature sleeve, the nut is screwed in place in the temperature sleeve, and then the positioning seat is tightly abutted to the positioning block.
The utility model discloses an increase the mounting means of high strength spring in the temperature thermal resistance and adopt reverse plug encapsulation PT100 sensor probe, promote the anti vibration performance of temperature thermal resistance, make the long-time steady operation of temperature thermal resistance can be in the environment of vibration, monitoring temperature information.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic structural diagram of a temperature-resistant thermal resistor;
FIG. 3 is a schematic structural view of a stud;
FIG. 4 is a schematic structural view of the thermal resistance to vibration temperature after removing the stud
Fig. 5 is a diagram of a PT100 sensor probe installation.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
As shown in FIG. 1, the utility model discloses a AP1000 nuclear power station temperature measurement system, including connecting in the circulating water pipeline 3 between condenser 1 and circulating water pump 2. The thermal resistance fixing pipe fittings are welded and fixed on the circulating water pipeline 3 and extend into the circulating water pipeline 3. The end of the thermal resistance fixing pipe is provided with an internal thread. The measuring end of the anti-vibration temperature thermal resistor 4 is inserted into the thermal resistor fixing pipe fitting, and the anti-vibration temperature thermal resistor 4 is fixedly connected with the thermal resistor fixing pipe fitting in a threaded connection mode. The data acquisition cable 5 of the temperature-resistant thermal resistor 4 is connected to the plant control system PLS.
As shown in fig. 2 to 5, the thermal resistance 4 against vibration temperature disclosed in this embodiment includes a stud 4-1, and two ends of the stud 4-1 are respectively provided with a first external thread 4-2 and a second external thread 4-3. And an external thread I4-2 on the stud 4-1 is matched with an internal thread at the end part of the thermal resistance fixing pipe fitting, so that the thermal resistance 4 resisting the vibration temperature is connected and fixed with the thermal resistance fixing pipe fitting. An internal thread 4-4 is also arranged in the end part of the stud 4-1 with the external thread two 4-3.
A temperature sleeve 4-5 is located within stud 4-1. In this embodiment, the end of the temperature sleeve 4-5 on the same side as the external thread-4-2 is defined as the measuring end, and the other end is defined as the connecting end. The PT100 sensor probe 4-6 is arranged in the measuring end of the temperature sleeve 4-5, and the PT100 sensor probe 4-6 is arranged at the measuring end of the temperature sleeve 4-5 in an inverted packaging mode. One end of a data acquisition cable 5 positioned in the temperature sleeve 4-5 is connected with a PT100 sensor probe 4-6, and the other end of the data acquisition cable is connected with a junction box after being led out from the connecting end of the temperature sleeve 4-5 and then is connected to a power station control system PLS through the junction box. In the embodiment, the junction box is fixedly connected with the stud 4-1 through the second external thread 4-3 on the stud 4-1.
The connecting end of the temperature sleeve 4-5 is a cold end joint 4-7. Spring fixing steps 4-8 are formed at the connecting ends of the temperature sleeves 4-5, and nuts 4-9 with external threads III are sleeved at the end parts of the connecting ends of the temperature sleeves 4-5. The part of the temperature sleeve 4-5, which is positioned between the spring fixing step 4-8 and the nut 4-9, is sleeved with a spring 4-10, and two ends of the spring 4-10 are respectively propped against the spring fixing step 4-8 and the nut 4-9. The external thread III of the nut 4-9 is matched with the internal thread 4-4 of the temperature sleeve 4-5, and the temperature sleeve 4-5 and the stud 4-1 are fixed after the nut 4-9 is screwed into the stud 4-1. When the anti-vibration temperature thermal resistor 4 is not fixedly connected with the thermal resistor fixing pipe fitting, the spring 4-10 is in a loose state. After the anti-vibration temperature thermal resistor 4 is screwed into the thermal resistor fixing pipe, the measuring end of the temperature sleeve 4-5 is abutted against the bottom of the thermal resistor fixing pipe, so that the temperature sleeve 4-5 is pushed to move axially, and the spring 4-10 is stressed and compressed.
Furthermore, in the present embodiment, the temperature sleeve 4-5 is further provided with a positioning seat 4-12 connected with the spring fixing step 4-8. The middle part of the temperature sleeve 4-5 is sleeved with a positioning block 4-11, the positioning block 4-11 is connected with the inner wall of the stud 4-1, and the temperature sleeve 4-5 can move axially along the positioning block 4-11. When the external thread III of the nut 4-9 is matched with the internal thread 4-4 of the temperature sleeve 4-5, so that the nut 4-9 is screwed in place in the temperature sleeve 4-5, the positioning seat 4-12 is abutted against the positioning block 4-11.
Claims (5)
1. The utility model provides a AP1000 nuclear power station temperature measurement system, including connecting in circulating water pipeline (3) between condenser (1) and circulating water pump (2), a serial communication port, welded fastening stretches into the fixed pipe fitting of thermal resistance in the pipeline on circulating water pipeline (3), the measuring end of anti vibration temperature thermal resistance (4) inserts in the fixed pipe fitting of thermal resistance, and anti vibration temperature thermal resistance (4) are fixed with the fixed pipe connection of thermal resistance, data acquisition cable (5) of anti vibration temperature thermal resistance (4) link to each other with power station control system PLS.
2. The AP1000 nuclear power station temperature measurement system according to claim 1, characterized in that the vibration-resistant temperature thermal resistor (4) comprises a stud (4-1) with a first external thread (4-2) and a second external thread (4-3) at two ends; the stud (4-1) is fixedly connected with the thermal resistance fixing pipe fitting through a first external thread (4-2); an internal thread (4-4) is arranged in the end part of the stud (4-1) provided with the external thread II (4-3); a temperature sleeve (4-5) is arranged in the stud (4-1) in a penetrating way; the end part of the temperature sleeve (4-5) on the same side with the external thread I (4-2) is the measuring end, and the other end of the temperature sleeve is a connecting end;
a PT100 sensor probe (4-6) is arranged in the measuring end of the temperature sleeve (4-5), the data acquisition cable (5) is also arranged in the temperature sleeve (4-5), one end of the data acquisition cable (5) is connected with the PT100 sensor probe (4-6), and the other end of the data acquisition cable is led out from the connecting end of the temperature sleeve (4-5);
the connecting end of the temperature sleeve (4-5) is a cold end joint (4-7); a spring fixing step (4-8) is arranged at the connecting end of the temperature sleeve (4-5), and a nut (4-9) with an external thread III is sleeved at the end part of the connecting end of the temperature sleeve (4-5); a spring (4-10) is sleeved outside the part, located between the spring fixing step (4-8) and the nut (4-9), of the temperature sleeve (4-5), and two ends of the spring (4-10) are respectively abutted against the spring fixing step (4-8) and the nut (4-9); the external thread III of the nut (4-9) is matched with the internal thread (4-4) of the temperature sleeve (4-5), so that the temperature sleeve (4-5) is fixed in the stud (4-1);
after the stud (4-1) is connected and fixed with the thermal resistance fixing pipe fitting, the measuring end of the temperature sleeve (4-5) is abutted against the bottom of the thermal resistance fixing pipe fitting, so that the temperature sleeve (4-5) is pushed to move axially to enable the spring (4-10) to be stressed and compressed.
3. The AP1000 nuclear power plant temperature measurement system as claimed in claim 2, characterized in that the connection end of the data acquisition cable (5) is connected to a junction box after being led out from the temperature bushings (4-5), and the junction box is connected to the plant control system PLS.
4. The AP1000 nuclear power plant temperature measuring system as claimed in claim 3, characterized in that the junction box is fixedly connected with the stud (4-1) through the second external thread (4-3).
5. The AP1000 nuclear power station temperature measurement system according to claim 2, characterized in that a positioning seat (4-12) connected with the spring fixing step (4-8) is arranged on the temperature sleeve (4-5), and a positioning block (4-11) fixedly connected with the inner wall of the stud (4-1) is sleeved in the middle of the temperature sleeve (4-5); when the external thread III of the nut (4-9) is matched with the internal thread (4-4) of the temperature sleeve (4-5) so that the nut (4-9) is screwed in place in the temperature sleeve (4-5) in a rotating mode, the positioning seat (4-12) abuts against the positioning block (4-11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022856307.5U CN213748819U (en) | 2020-12-01 | 2020-12-01 | AP1000 nuclear power station temperature measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022856307.5U CN213748819U (en) | 2020-12-01 | 2020-12-01 | AP1000 nuclear power station temperature measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213748819U true CN213748819U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022856307.5U Active CN213748819U (en) | 2020-12-01 | 2020-12-01 | AP1000 nuclear power station temperature measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213748819U (en) |
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2020
- 2020-12-01 CN CN202022856307.5U patent/CN213748819U/en active Active
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