CN209818341U - High-temperature molten salt pump comprehensive test detection device - Google Patents
High-temperature molten salt pump comprehensive test detection device Download PDFInfo
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- CN209818341U CN209818341U CN201920347403.1U CN201920347403U CN209818341U CN 209818341 U CN209818341 U CN 209818341U CN 201920347403 U CN201920347403 U CN 201920347403U CN 209818341 U CN209818341 U CN 209818341U
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Abstract
The high-temperature molten salt pump comprehensive test detection device comprises a test board, a pump barrel and a molten salt tank; a motor, a bearing box and a molten salt tank temperature monitor are respectively arranged on the test board; a molten salt tank is arranged below the furnace body; the upper surface of the molten salt tank is provided with a supporting seat of a heating pipe, a molten salt pump insertion opening, a liquid level meter, a tank pressure transmitter and a molten salt feeding opening, and the right end of the molten salt tank is provided with a return pipe inlet; the inner cavity of the molten salt tank is respectively provided with a temperature sensor and a vibration sensor monitoring point; a pump barrel is arranged in the middle of the test board, a high-temperature molten salt pump is arranged in the middle of the pump barrel, and the lower end of the high-temperature molten salt pump is arranged in a molten salt tank; the outlet of the high-temperature molten salt pump is provided with a return pipeline, the upper end of the return pipeline is provided with an outlet pressure transmitter, and the lower end of the return pipeline is provided with a flowmeter and a flow control valve and is communicated with the molten salt tank through a return pipe inlet. The utility model discloses realize that the high temperature condition is experimental, satisfy the test requirement of the molten salt pump shaft of different models and different length, realize comprehensive test, the evaluation to molten salt pump performance.
Description
Technical Field
The utility model relates to a high temperature molten salt pump combined test detection device belongs to pump test device field.
Background
The major axis submerged high temperature molten salt pump is a key device for conveying high temperature molten salt, the conveying medium is a molten salt medium under a high temperature condition, the operation condition is extremely harsh, and the problems of the operation performance, the temperature of key parts, the vibration of a pump body and the like of the major axis submerged high temperature pump under the high temperature condition are more prominent, so that the key elements of the major axis submerged high temperature molten salt pump are mainly monitoring of the operation performance, the temperature of key part parts and the vibration index of the pump body.
Through retrieval, the molten salt pump test device related in the text of test and numerical simulation of external characteristic and internal flow of the molten salt pump (Shaoch. Lei, et al, test and numerical simulation of external characteristic and internal flow of the molten salt pump [ J ]. aeronautical dynamics, 2016,31(8):1935 + 1942) mainly comprises a motor, a model pump, a pressure sensor, a rotor flow meter, a pipeline, a regulating valve, a water tank, a torque and rotation speed sensor and a PIV test system. However, the test device can only adopt water as a medium to carry out the PIV test, and can not meet the test requirements of other media under the high-temperature condition, and the test device can not complete the same test of the valve, can not monitor key indexes such as vibration and noise, and can not carry out the performance test of the high-temperature molten salt pump under the high-temperature condition. Therefore, at present, no complete high-temperature condition test bed is available at home and abroad for detecting the performances.
Disclosure of Invention
The utility model aims to provide a high-temperature molten salt pump comprehensive test detection device which can overcome the problems that the prior art can not solve; the utility model aims at realizing the technical scheme that its technical problem adopted is solved: the utility model provides a high temperature molten salt pump combined test detection device, includes the testboard, the pump barrel, the molten salt jar, its characterized in that: the test bench comprises a frame, a plurality of transverse supports are arranged in the frame, and two test bench supporting steel frames are longitudinally arranged; a molten salt tank is arranged below the test board, and a molten salt tank is arranged in the molten salt tank; the upper surface of the molten salt tank is uniformly provided with supporting seats of heating pipes inserted into the molten salt tank, and a molten salt pump insertion opening, a liquid level meter, a tank pressure transmitter and a molten salt feeding opening are sequentially arranged from left to right; the right end of the molten salt tank is provided with a return pipe inlet; a plurality of temperature sensor monitoring points are uniformly distributed below the inner cavity of the molten salt tank, a vibration sensor monitoring point is respectively arranged below the centers of two ends of the inner cavity of the molten salt tank, and a rectifying grid is also arranged in the inner cavity of the molten salt tank; a motor temperature monitor and a bearing box temperature monitor are respectively arranged on the transverse bracket and the position, corresponding to the position of a motor and a bearing box on the high-temperature molten salt pump, on one longitudinal test bench supporting steel frame, and a molten salt pot temperature monitor is arranged below the other longitudinal test bench supporting steel frame and corresponding to the position of a molten salt pot; a pump barrel is arranged between the two longitudinal test board support steel frames, a high-temperature molten salt pump is arranged in the middle of the pump barrel, and the lower end of the high-temperature molten salt pump is arranged in a molten salt tank through a molten salt pump insertion hole; the outlet of the high-temperature molten salt pump is provided with a return pipeline, the upper end of the return pipeline is provided with an outlet pressure transmitter, and the lower end of the return pipeline is sequentially provided with a flowmeter and a flow control valve respectively and is connected with the inlet of a return pipe through a return pipe interface to be communicated with a molten salt tank.
The heating pipe is an electric heating pipe.
The liquid level meter is an ultrasonic liquid level meter.
The outlet pressure transmitter and the tank pressure transmitter are nitrogen-sealed pressure gauges.
The motor temperature monitor, the bearing box temperature monitor and the molten salt tank temperature monitor are high temperature resistant thermometers.
The pump barrel and the backflow pipeline are designed into a segment assembling structure, and can be adjusted according to the length of a tested pump so as to meet the testing requirements of pump shafts of high-temperature molten salt pumps with different lengths.
The frame, the transverse support and the two test bench support steel frames are designed into a structure with adjustable height.
And the connection part of the backflow pipeline and the outlet of the high-temperature molten salt pump and in front of the inlet of the backflow pipe of the molten salt tank is provided with an inclination angle.
The utility model provides a limitation that conventional test bench exists in the high temperature pump test, realize that the high temperature condition is experimental. The working environment temperature of the molten salt pump is very high, and the test conditions are harsh, so that many researches and verifications related to the molten salt pump are carried out under the condition of normal-temperature clear water. Can not reflect the running performance of molten salt pump really under normal atmospheric temperature clear water condition, for avoiding medium condition and temperature factor to the influence of molten salt pump authenticity ability, the utility model discloses establish the real operating condition of molten salt pump and test the molten salt pump to gather performance index parameter, realize the accurate evaluation of molten salt pump performance.
The utility model can realize the test of the pump shafts of the molten salt pumps with different lengths; the test bench frame, the transverse support and the two test bench support steel frames are designed into a structure with adjustable height, when molten salt pump shafts with different lengths are tested, the parts are moved and fixed by bolts, and the test requirements of molten salt pumps with different models and different lengths are met. The pump barrel and the backflow pipeline are designed into a segment assembling structure, and the pump shafts of the molten salt pumps with different lengths can be adjusted as required to form a loop system meeting the testing requirements.
The utility model discloses realize experimental medium and device temperature real-time supervision. Because the test operation medium is high-temperature molten salt, the temperature of the medium and the equipment is too low or too high in the test process, and the test equipment can be damaged. The temperature of the molten salt and the temperature of the tank wall in the molten salt tank are monitored, the change of the molten salt and the temperature of the tank wall are fed back, the real-time adjustment of the temperature of the molten salt and the control of the safe temperature of the equipment are realized, and the safe operation of the test device is guaranteed.
Because the test object is the molten salt pump of operation under the high temperature condition, deformation, vibration, temperature distribution etc. of the spare part of each part under the high temperature condition are stable to the operation of pump valve and are influenced very much, the utility model discloses based on above problem consideration, set up vibration sensor and key position temperature distribution sensor among the test system to the more accurate evaluation of data collection to pump valve performance. The invention provides a set of test method suitable for the long-shaft submerged high-temperature molten salt pump and the valve by combining the test device of the invention.
The utility model discloses an useful part lies in: the utility model discloses realize that the high temperature condition is experimental to and satisfy the test requirement of the molten salt pump shaft of different models and different length, realize comprehensive test, evaluation to molten salt pump performance. In order to prevent the high-temperature molten salt pump from being incapable of completely flowing back into the molten salt tank after the test is finished and generating solid condensation at the pipeline and the test instrument after the high-temperature molten salt pump is completely cooled to influence the reuse of each part of the system, the connection part of the backflow pipeline and the outlet of the high-temperature molten salt pump and in front of the backflow pipe inlet of the molten salt tank is provided with an inclination angle, and the liquid molten salt is ensured to completely flow back into the molten salt tank.
Drawings
FIG. 1 is a schematic structural view of a long-axis submerged high-temperature molten salt pump comprehensive test detection device of the utility model;
FIG. 2 is a front view of a schematic view of a high temperature molten salt tank structure;
FIG. 3 is a plan view of the high temperature molten salt tank of FIG. 2;
FIG. 4 is a left side view of the high temperature molten salt tank of FIG. 2;
FIG. 5 is a schematic diagram of the connection between the high-temperature molten salt pump and the loop pipe.
In fig. 1, a test station; 2. a frame; 3. the test bench supports the steel frame; 4. a motor temperature monitor; 5. the system comprises a high-temperature molten salt pump, a pump barrel 6, a molten salt tank 7, a molten salt tank 8, a molten salt tank 9, a molten salt tank groove 10, a return pipeline interface; 11. flow control valve, 12 flow meter, 13 tank pressure transmitter, 14 level meter; 15. a return line; 16. an outlet; 17. an outlet pressure transmitter; 18. 19, a transverse bracket;
in figure 2, 20 is a molten salt pump insertion port, 21 is a vibration sensor monitoring point, 22 is a temperature sensor monitoring point, 23 is a rectifier grid, 24 is a return pipe inlet, 25 is a heating pipe, and 26 is a molten salt feeding port.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings;
as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5; the specific test method comprises the following steps:
the utility model provides a high temperature molten salt pump combined test detection device, includes testboard 1, pump barrel 6, molten salt jar 8, its characterized in that: the test bench 1 comprises a frame 2, a plurality of transverse brackets 19 are arranged in the frame 2, and two test bench supporting steel frames 3 are longitudinally arranged; a molten salt tank 9 is arranged below the test board 1, and a molten salt tank 8 is arranged in the molten salt tank 9; the upper surface of the molten salt tank 8 is uniformly provided with supporting seats of heating pipes 25 inserted into the molten salt tank 8, and the supporting seats are sequentially provided with a molten salt pump insertion opening 20, a liquid level meter 14, a tank pressure transmitter 13 and a molten salt feeding opening 20 from left to right; the right end of the molten salt tank 8 is provided with a return pipe inlet 24; a plurality of temperature sensor monitoring points 22 are uniformly distributed below the inner cavity of the molten salt tank 8, a vibration sensor monitoring point 21 is respectively arranged below the centers of two ends of the inner cavity of the molten salt tank 8, and a rectifying grid 23 is also arranged in the inner cavity of the molten salt tank 8; a motor temperature monitor 4 and a bearing box temperature monitor 18 are respectively arranged on the transverse bracket 19 and the position, corresponding to the position of a motor and a bearing box on the high-temperature molten salt pump 5, on one longitudinal test bench supporting steel frame 3, and a molten salt tank temperature monitor 7 is arranged below the other longitudinal test bench supporting steel frame 3 and corresponding to the position of a molten salt tank 8; a pump barrel 6 is arranged between the two longitudinal test bench support steel frames 3, a high-temperature molten salt pump 5 is arranged in the middle of the pump barrel 6, and the lower end of the high-temperature molten salt pump 5 is arranged in a molten salt tank 8 through a molten salt pump insertion hole 20; the outlet 16 of the high-temperature molten salt pump 5 is provided with a return pipeline 15, the upper end of the return pipeline 15 is provided with an outlet pressure transmitter 17, the lower end of the return pipeline 15 is sequentially provided with a flowmeter 12 and a flow control valve 11 respectively, and is connected with a return pipe inlet 24 through a return pipe interface 10 to be communicated with the molten salt tank 8.
The heating pipe 25 is an electric heating pipe.
The liquid level meter 14 is an ultrasonic liquid level meter.
The outlet pressure transmitter 17 and the tank pressure transmitter 13 are nitrogen-sealed pressure gauges.
The motor temperature monitor 4, the bearing box temperature monitor 18 and the molten salt tank temperature monitor 7 are high temperature resistant thermometers.
The pump barrel 6 and the return pipeline 15 are designed into a segment assembling structure, and can be adjusted according to the length of a tested pump so as to meet the testing requirements of pump shafts of high-temperature molten salt pumps with different lengths.
The frame 2, the transverse bracket 19 and the two test bench supporting steel frames 3 are designed into a structure with adjustable height.
And an inclination angle is arranged at the joint of the return pipeline 15 and the outlet 16 of the high-temperature molten salt pump 5 and in front of the return pipe inlet 24 of the molten salt tank 8.
In specific implementation, the operation steps are as follows:
1) preparing solid molten salt according to actual operation conditions, gradually adding the molten salt into the molten salt tank 8 through a molten salt feeding port 26, fully heating the molten salt in the molten salt tank 8 by using a heating pipe 25 before starting the high-temperature molten salt pump 5, ensuring that a molten salt medium in the molten salt tank 8 is fully melted, meeting the actual conveying temperature, and simultaneously preventing the test backflow pipeline 15 from being blocked by the unmelted molten salt and damaging the tested high-temperature molten salt pump 5.
2) Closing the flow control valve 11, slowly increasing the rotating speed of the high-temperature molten salt pump 5 after the temperature of the medium in the molten salt tank 8 is stable, opening the flow control valve 11 after the medium runs for a period of time at a low speed, and enabling the test system to perform performance tests on the test high-temperature molten salt pump 5 under different flow conditions after the flow control valve 11 runs for a period of time under the condition of small opening degree, and simultaneously respectively testing the vibration sensor monitoring point 21 in the molten salt tank 8 by using a vibration sensor and the temperature sensor monitoring point 22 in the molten salt tank 8 by using a temperature sensor and acquiring data.
3) A molten salt tank temperature monitor 7 is adopted to carry out data acquisition on the temperature of a molten salt tank 8, a motor temperature monitor 4 and a bearing box temperature monitor 18 respectively on the temperature of a motor end of a high-temperature molten salt pump 5 and the temperature of a bearing box; the purpose of monitoring the temperature of the motor end is to detect whether the temperature of the motor end is higher than a safety value, and the purpose of monitoring the temperature of the molten salt tank 8 is to ensure that molten salt is not solidified and the molten salt tank 8 is safe in the experimental process;
4) monitoring and data acquisition are carried out on monitoring points 21 of the vibration sensors at two ends in the inner cavity of the molten salt tank 8 by adopting the vibration sensors; monitoring and data acquisition are carried out on a monitoring point 22 of the temperature sensor in the inner cavity of the molten salt tank 8 by adopting the temperature sensor; the vibration and temperature monitoring is not only the performance test of the high-temperature molten salt pump 5, but also the safety monitoring of the operation of the test system;
5) after the test is finished, the flow control valve 11 is fully opened, the residual high-temperature molten salt in the loop is recovered into the molten salt tank 8, and the heating pipe 25 is closed after the tested high-temperature molten salt pump 5 is taken out
The long-shaft high-temperature molten salt pump test bed mainly comprises a main loop, a test bed steel frame, a molten salt tank, test equipment and the like. The main loop sucks high-temperature molten salt from the molten salt tank, the high-temperature molten salt enters the inlet of the test pump through the suction horn, the test pump pumps out molten salt medium and conveys the molten salt medium back to the molten salt tank through the external loop, and the performance test of medium circulation is realized. Because the test system operates under the high-temperature condition, the test system can detect the temperature, the liquid level and other conditions of the key equipment of the test bed in the operation process of the test bed, and the safe and normal operation of the test system is ensured.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (8)
1. The utility model provides a high temperature molten salt pump combined test detection device, includes testboard (1), pump barrel (6), molten salt jar (8), its characterized in that: the test bench (1) comprises a frame (2), a plurality of transverse brackets (19) are arranged in the frame (2), and two test bench supporting steel frames (3) are longitudinally arranged; a molten salt tank groove (9) is arranged below the test board (1), and a molten salt tank (8) is arranged in the molten salt tank groove (9); the upper surface of the molten salt tank (8) is uniformly provided with supporting seats of heating pipes (25) inserted into the molten salt tank (8) in a distributed manner, and a molten salt pump insertion opening (20), a liquid level meter (14), a tank pressure transmitter (13) and a molten salt feeding opening (26) are sequentially arranged from left to right; the right end of the molten salt tank (8) is provided with a return pipe inlet (24); a plurality of temperature sensor monitoring points (22) are uniformly distributed below the inner cavity of the molten salt tank (8), two vibration sensor monitoring points (21) are respectively arranged at the centers of the two ends of the inner cavity of the molten salt tank (8) in a downward mode, and a rectifier grid (23) is further arranged in the inner cavity of the molten salt tank (8); a motor temperature monitor (4) and a bearing box temperature monitor (18) are respectively arranged on the transverse bracket (19) and a position, corresponding to the position of a motor and a bearing box on the high-temperature molten salt pump (5), on one longitudinal test bench supporting steel frame (3), and a molten salt tank temperature monitor (7) is arranged below the other longitudinal test bench supporting steel frame (3) and corresponding to the position of a molten salt tank (8); a pump barrel (6) is arranged between the two longitudinal test bench supporting steel frames (3), a high-temperature molten salt pump (5) is arranged in the middle of the pump barrel (6), and the lower end of the high-temperature molten salt pump (5) is arranged in a molten salt tank (8) through a molten salt pump insertion hole (20); the outlet (16) of the high-temperature molten salt pump (5) is provided with a return pipeline (15), the upper end of the return pipeline (15) is provided with an outlet pressure transmitter (17), and the lower end of the return pipeline (15) is sequentially provided with a flowmeter (12) and a flow control valve (11) respectively and is connected with a return pipe inlet (24) through a return pipe connector (10) to be communicated with the molten salt tank (8).
2. The high-temperature molten salt pump comprehensive test detection device according to claim 1, characterized in that: the heating pipe (25) is an electric heating pipe.
3. The high-temperature molten salt pump comprehensive test detection device according to claim 1, characterized in that: the liquid level meter (14) is an ultrasonic liquid level meter.
4. The high-temperature molten salt pump comprehensive test detection device according to claim 1, characterized in that: the outlet pressure transmitter (17) and the tank internal pressure transmitter (13) are nitrogen-sealed pressure gauges.
5. The high-temperature molten salt pump comprehensive test detection device according to claim 1, characterized in that: the motor temperature monitor (4), the bearing box temperature monitor (18) and the molten salt tank temperature monitor (7) are high-temperature-resistant thermometers.
6. The high-temperature molten salt pump comprehensive test detection device according to claim 1, characterized in that: the pump barrel (6) and the return pipeline (15) are designed into a segment assembly structure, and can be adjusted according to the length of a tested pump so as to meet the test requirements of pump shafts of high-temperature molten salt pumps with different lengths.
7. The high-temperature molten salt pump comprehensive test detection device according to claim 1, characterized in that: the frame (2), the transverse support (19) and the two test bench supporting steel frames (3) are designed into a structure with adjustable height.
8. The high-temperature molten salt pump comprehensive test detection device according to claim 1, characterized in that: and an inclination angle is arranged at the joint of the return pipeline (15) and the outlet (16) of the high-temperature molten salt pump (5) and in front of the inlet (24) of the return pipe of the molten salt tank.
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| CN201920347403.1U CN209818341U (en) | 2019-05-14 | 2019-05-14 | High-temperature molten salt pump comprehensive test detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145471A (en) * | 2019-05-14 | 2019-08-20 | 江苏飞跃机泵集团有限公司 | A kind of high-temperature melting salt pump compbined test detection device and test method |
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- 2019-05-14 CN CN201920347403.1U patent/CN209818341U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145471A (en) * | 2019-05-14 | 2019-08-20 | 江苏飞跃机泵集团有限公司 | A kind of high-temperature melting salt pump compbined test detection device and test method |
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