Multifunctional high temperature and high pressure comprehensive testing device

Abstract

The present invention relates to a multifunctional high-temperature and high-pressure comprehensive test device, which is composed of a main circuit 1, a pressure regulating circuit 2, a water filling circuit 3, a test circuit 4, a main circuit cooling circuit 5, a test pump cooling circuit 6, a cooling tower system 7, a discharge circuit 8, a cavitation circuit 9, a water making device 10, and a tap water system 11. It is a high-temperature and high-pressure multifunctional test system, which can be used as a bearing test bench and a water pump test bench, and can also connect different circuits according to different pump product needs and different circuit requirements to perform more pump product tests. It can complete the test of a bearing simulator and a water pump, especially provide high pressure, variable pressure, variable temperature, conditions in the test, and provide test data.

Description

Technical field:

[0001] The invention relates to a multifunctional high-temperature and high-pressure comprehensive testing device. Background technology:

[0002] The water-lubricated thrust bearing of the shielded motor of the nuclear main pump used in the third-generation nuclear power plant is within the pressure boundary of the first circuit. The changes in the system pressure and temperature parameters directly affect the operation of the bearing. The existing thrust bearing test bench can carry out normal temperature and pressure bearing operation tests, no-load start-stop tests, speed regulation tests, and load tests. It cannot simulate the bearing operation test under high temperature and high pressure of the system, cannot carry out load starting tests, and cannot simulate idling tests. In addition, the existing full-flow test bench for nuclear main pumps in China is built for product unit performance testing. Although the operating performance of the bearings assembled inside the motor can be verified most realistically on this bench, it is impossible to monitor the bearing operation and lubrication-specific parameters in a systematic and direct manner. In addition, the unit disassembly and assembly process is complex, costly, risky, and has a long iterative optimization cycle. Therefore, it is necessary to establish a special test bench for high-temperature and high-pressure bearings to solve the above scientific research problems, simulate the bearing operation performance under real working conditions to the greatest extent, and summarize and provide the optimization direction of the water-lubricated thrust bearing of the shielded motor of the nuclear main pump based on the test. Summary of the invention:

[0003] The purpose of the present invention is to provide a multifunctional high-temperature and high-pressure comprehensive test device, which can carry out high-temperature and high-pressure tests in a targeted manner and provide data support for the stable operation and bearing optimization of the nuclear main pump thrust bearing. The device can be used for testing the water-lubricated thrust bearing of the nuclear main pump shielded motor, and can also be used as a pump test bench. The technical scheme of the present invention is: a multifunctional high-temperature and high-pressure comprehensive test device, which consists of a main circuit 1, a pressure regulating circuit 2, a water filling circuit 3, a test circuit 4, a main circuit cooling circuit 5, a test pump cooling circuit 6, a cooling tower system 7, a discharge circuit 8, a cavitation circuit 9, a water making device 10, and a tap water system 11, wherein the test main pump 1-1 is connected to the main circuit regulating valve 1-2 through the main circuit pipeline 1-5, the main circuit regulating valve 1-2 is connected to the ceramic electric heater 1-3, the main circuit flow meter 1-6 and then returns to the test main pump 1-1 to form the main circuit 1; the main circuit 1 is connected with a main pipeline auxiliary valve 1-7 and a safety valve 1-4 in series, and the main circuit 1 is connected with a main circuit first drain valve 8-1 and two main circuit second drain valves 8-2 in series; the water making device 10 is connected to the water storage tank 3-3 of the water filling circuit 3 The bottom of the water tank 3-3 is connected with a water tank drain valve 8-10, the main water filling valve 3-10 of the water filling circuit 3 is connected to the lower electric stop valve 2-6 of the pressure regulating circuit 2 and then connected to the main circuit cooling circuit 5; the cavitation pipeline 9-3 of the cavitation circuit 9 is connected to the stabilizer 2-1 of the pressure regulating circuit 2; the two ends of the main circuit cooling circuit 5 are connected to the accompanying test circuit 4, and the two ends of the accompanying test circuit 4 are connected to the main circuit 1; the water inlet of the test pump cooling circuit 6 is connected to the water diverter valve 7-7 of the cooling tower system 7, and the return water of the test pump cooling circuit 6 is connected to the cooling tower return pipe 7-8 of the cooling tower system 7; the water inlet of the cooling water pump 5-9 of the main cooling circuit 5 is connected to the main cooling circuit 7-6 of the cooling tower system 7, and the return water of the main cooling circuit 5 is directly connected back to the cooling tower return pipe 7-8 through the cooler cooling water return pipe 5-6.

[0004] After the water generating device 10 is connected to the water storage tank 3-3 of the water filling circuit 3, it is divided into two paths after passing through the filter 3-4 and the water filling pipe 3-5. One path is connected to the water filling valve 3-6, the water filling pump 3-1, and the water filling check valve 3-7, and the other path is connected to the pressure valve 3-8, the pressure pump 3-2, and the pressure check valve 3-9. The two paths are then merged and connected to the main water filling valve 3-10 together with the balance valve 2-7.

[0005] One end of the balancing container 2-2 in the pressure regulating loop 2 is connected to the pressure stabilizer 2-1, and the other end is connected to the balancing valve 2-7 and then connected to the main water filling valve 3-10. The first electric valve check valve 2-5 is connected above the pressure stabilizer 2-1, and the second electric valve check valve 2-6 is connected to the bottom of the pressure stabilizer 2-1. A manual stop valve 2-4 and a balancing safety valve 2-3 are connected in series above the upper vertical side of the pressure stabilizer 2-1. The cavitation loop 9 is connected to the pressure stabilizer 2-1 by a vacuum pump 9-1 through a connecting valve 9-2, an electric exhaust valve 9-4, and a vacuum pipe 9-3. Two vacuum exhaust valves 8-9 are installed in series on the vacuum pipe 9-3.

[0006] The main circuit 1 is connected to the test circuit inlet isolation valve 4-4 at the inlet pipe section of the test main pump 1-1 of the main circuit, and the test circuit inlet isolation valve 4-4 is connected to the test pump 4-1 through the test pipe 4-2. The outlet section of the test pump 4-1 is connected to the test circuit outlet isolation valve 4-6, the test circuit regulating valve 4-3 and the test circuit flowmeter 4-5 through the test pipe 4-2 and the outlet pipe section of the main pipe 1-5 of the test main pump 1-1 of the main circuit 1 to form a test circuit 4.

[0007] The cooler outlet isolation valve 5-8 of the main circuit cooling circuit 5, the main circuit cooler 5-1, and the cooler inlet isolation valve 5-2 are connected to the test circuit 4 through the main circuit cooling pipeline 5-3. A cooler drain valve 8-3 is installed at the bottom of the main circuit cooler 5-1. Two parallel main circuit cooling drain valves 8-4 are installed on the main circuit cooling pipeline 5-3 and then connected in series with the main circuit cooling drain isolation valve 8-5. The cooling water of the main circuit cooler 5-1 is connected to the electric water distribution valve 7-6 of the cooling tower system 7 after passing through the cooler cooling water flow meter 5-5, the cooler cooling water check valve 5-4, the main cooler inlet pipe 5-10, and the main cooler cooling water pump 5-9. The return water of the cooling water of the main circuit cooler 5-1 is connected to the cooling tower return pipe 7-8 through the main cooler return pipe 5-6 and the main cooler return pipe valve 5-7. The cooling tower return pipe 7-8 is connected with a cooling water return drain valve 8-7.

[0008] The tap water system 11 is divided into two paths after passing through the manual valve 11-1, one of which is connected to the test pump cooling water inlet pipe 6-5 of the test pump cooling circuit 6 through the electric valve 11-2, and the other is connected to the test pump cooling water inlet pipe 6-6 of the test pump cooling circuit 6; and the test pump cooling circuit 6 is composed of two paths, one of which is connected to the water diverter valve 7-7, passes through the test pump cooling water pump 6-2, connects to the cooling test pump check valve 6-4 and the test pump cooling water inlet pipe 6-6, and then connects to the test main pump 1-1 and is connected to the test main pump 1-1, and the test main pump 1-1 is connected to the first After the return regulating valve 6-10, it is connected to the cooling tower return pipe 7-8 through the test pump cooling water return pipe 6-8; a cooling water flow regulating valve 6-11 is bridged between the water diverter valve 7-7 and the test pump cooling water return pipe 6-8; the other route is connected through the water diverter valve 7-7, passes through the test pump cooling water pump 6-1, connects to the cooling test pump check valve 6-3 and the test pump cooling water inlet pipe 6-5, and then connects to the test pump 4-1, and is connected from the test pump 4-1, connected to the cooling tower return pipe 7-8 after connecting to the fourth regulating valve 6-9 through the test pump cooling water return pipe 6-7.

[0009] The cooling tower 7-1 is connected to the cooling tower pipeline 7-5 and then to the cooling tower water tank 7-2 via the cooling tower connecting valve 7-4, and then to the filter 7-3 and then to the cooling tower pipeline 7-5, the electric water dividing valve 7-6 and the water dividing valve 7-7. The cooling tower drain valve 8-6 is connected to the cooling tower pipeline 7-5 at the outlet of the cooling tower 7-1.

[0010] Working principle and working process:

[0011] like Figure 1 As shown, the water making device 10 produces deionized water that meets the requirements of the test system and fills it into the water filling circuit 3. The water filling circuit 3 is mainly used to fill the main circuit 1 with water, replenish water and pressure test the system. Before the test starts, the circuit system is filled with water. After the filling is completed, the liquid level in the storage tank should be at a normal value to meet the possible replenishment needs during the test; when the main circuit 1 is working, the cooling tower system 7 and the test cooling water circuit 6 start working to cool the test pump; in order to meet the needs of the main pump hot test, a crawler ceramic electric heater 1-3 is set in the main circuit 1. After the high temperature test is completed, the cooling tower system 7 and the main circuit cooling circuit 5 system work together to cool the main circuit 1. All excess water, system cleaning water, and high-temperature and high-pressure water under accident conditions are discharged from the entire test device system through the discharge circuit 8. The accompanying test circuit 4 is a supporting equipment provided for the reverse flow test of the main pump 1-1. The circuit is provided with an accompanying test circuit outlet isolation valve 4-6 and an accompanying test circuit inlet isolation valve 4-4 for isolation. When the reverse flow test is not carried out, isolation is performed and will not affect the test of the main circuit.

[0012] The specific features, technical advantages and positive effects are:

[0013] 1. A multifunctional high temperature and high pressure comprehensive testing device of the present invention, such as Figure 1 As shown, it is a high temperature and high pressure multifunctional test system, which can be used as a bearing test bench and a water pump test bench. The test system has a wide flow range and can meet 350-3500m 3 / h flow test requirements, can complete the test of bearing test simulator. Solve the key technologies of designing and building high temperature and high pressure bearing test bench, especially provide high pressure, variable pressure, variable temperature and conditions in the test.

[0014] 2. A multifunctional high temperature and high pressure comprehensive test device of the present invention, such as Figure 1 As shown, this test device is a high-temperature and high-pressure test circuit, so in the design process, two main pipeline auxiliary valves 1-7 and a safety valve 1-4 connected in series, and two main circuit second drain valves 8-2 connected in series are set on the main pipeline 1-5 of the main circuit 1; two manual stop valves 2-4 and a balancing safety valve 2-3 connected in series are set on the regulator 2-1, and two vacuum exhaust valves 8-9 connected in series are set on the vacuum pipeline 9-3. Two parallel main circuit cooling drain valves 8-4 are set on the main circuit cooling pipeline 5-3 and then connected in series with the main circuit cooling drain isolation valve 8-5. Such double insurance settings ensure the discharge of the circuit and the safety under accident conditions.

[0015] 3. A multifunctional high temperature and high pressure comprehensive test device of the present invention, such as Figure 1 As shown, the setting of the tap water system 11 ensures that when the cooling tower system 7 is out of water, the test main pump 1-1 and the accompanying test pump 4-1 can still operate normally, and the setting of the cooling water flow regulating valve 6-11 can help adjust the cooling water demand of the test main pump 1-1 and the accompanying test pump 4-1.

[0016] 4. The multifunctional high-temperature and high-pressure comprehensive test device of the present invention is designed to operate a bearing test simulator in a high-temperature and high-pressure circuit, so as to obtain water-lubricated bearing test data under temperature and pressure change conditions in a high-pressure medium, develop a drive motor that meets the test operation parameters, solve the problem that the bearing test body can be disassembled separately, and solve the electromagnetic loading solution within the pressure boundary water solution of a circuit.

[0017] 5. The multifunctional high-temperature and high-pressure comprehensive test device of the present invention is a large-scale water-lubricated thrust bearing test bench with the largest size, maximum load, highest circuit temperature and pressure at home and abroad. It can carry out high-temperature and high-pressure load start-stop tests. It has significant innovation and can carry out high-temperature and high-pressure tests in a targeted manner, providing data support for the stable operation of the nuclear main pump thrust bearing and bearing optimization.

[0018] 6. A multifunctional high temperature and high pressure comprehensive testing device of the present invention, such as Figure 3 As shown, when the main circuit regulating valve 1-2 of the main circuit 1 is closed, part of the equipment in the accompanying test circuit 4 and the main circuit cooling circuit 5 can form a circuit to test other pump unit products. This part of the pipeline is thicker and has a heating ceramic electric heater 1-3, so this circuit can be used as a thermal test circuit for high temperature and high pressure tests; and as Figure 4 As shown, when the cooler outlet isolation valve 5-8 and the cooler inlet isolation valve 5-2 are closed, the main circuit regulating valve 1-2 is opened, and the test circuit 4 and part of the main pipeline 1-5 can form a pump product circuit for testing. This part of the pipeline is relatively thin for ordinary test circuits, and ordinary pump product tests can be performed. Different pipeline systems can be selected for testing under different pump product requirements.

[0019] 7. A multifunctional high temperature and high pressure comprehensive testing device of the present invention, such as Figure 1 As shown, the cavitation circuit 9 is connected to the voltage regulator 2-1 circuit. This structure can be used for cavitation test. According to the needs of the test, the voltage regulator 2-1 can be used to increase the pressure or the vacuum pump 9-1 can be used to achieve negative pressure, so as to meet the needs of the cavitation test. When the cavitation test is carried out, the upper space of the voltage regulator 2-1 is filled with air. By pressurizing and pumping negative pressure, different pressure values ​​are achieved. The test is carried out at different pressure values ​​until the cavitation test is carried out, so as to realize the cavitation test of the main pump 1-1. The voltage regulator 2-1 also has an electric heating element, which can heat the circuit and greatly improve the heating speed of the circuit. There are 15 groups of ceramic electric heaters 1-3 in the main circuit. Different groups can be opened according to different needs. The heating power and speed adjustability are flexible and convenient. A balance container 2-2 is connected to the inlet and outlet of the voltage regulator 2-1 through a balance valve 2-7 to ensure that the liquid level is relatively stable. Description of the drawings:

[0020] Figure 1 :Overall structure diagram of multifunctional high temperature and high pressure comprehensive test device

[0021] Figure 2 :Test circuit diagram of multifunctional high temperature and high pressure comprehensive test device

[0022] Figure 3 :Heating test circuit diagram

[0023] Figure 4 :General test circuit diagram Specific implementation method:

[0024] like Figure 1As shown, a multifunctional high-temperature and high-pressure comprehensive test device is composed of a main circuit 1, a pressure regulating circuit 2, a water filling circuit 3, a test circuit 4, a main circuit cooling circuit 5, a test pump cooling circuit 6, a cooling tower system 7, a discharge circuit 8, a cavitation circuit 9, a water generator 10, and a tap water system 11. The test main pump 1-1 is connected to the main circuit regulating valve 1-2 through the main circuit pipeline 1-5, and the main circuit regulating valve 1-2 is connected to the ceramic electric heater 1-3 and the main circuit flow meter 1-6 and then returns to the test main pump 1-1 to form the main circuit 1; the main circuit 1 is connected to the main pipeline auxiliary valve 1-7 and the main pipeline safety valve 1-4 in series, and the main circuit 1 is connected to a main circuit first drain valve 8-1 and two main circuit second drain valves 8-2 in series; the water generator 10 is connected to the water storage tank 3-3 of the water filling circuit 3, A water tank drain valve 8-10 is connected to the bottom of the water tank 3-3, and the main water filling valve 3-10 of the water filling circuit 3 is connected to the lower electric stop valve 2-6 of the pressure regulating circuit 2 and then connected to the main circuit cooling circuit 5; the cavitation pipeline 9-3 of the cavitation circuit 9 is connected to the stabilizer 2-1 of the pressure regulating circuit 2; both ends of the main circuit cooling circuit 5 are connected to the accompanying test circuit 4, and both ends of the accompanying test circuit 4 are connected to the main circuit 1; the water inlet of the test pump cooling circuit 6 is connected to the water diverter valve 7-7 of the cooling tower system 7, and the return water of the test pump cooling circuit 6 is connected to the cooling tower return pipe 7-8 of the cooling tower system 7; the water inlet of the cooling water pump 5-9 of the main cooling circuit 5 is connected to the main cooling circuit 7-6 of the cooling tower system 7, and the return water of the main cooling circuit 5 is directly connected back to the cooling tower return pipe 7-8 through the cooler cooling water return pipe 5-6.

[0025] After the water generating device 10 is connected to the water storage tank 3-3 of the water filling circuit 3, it is divided into two paths after passing through the filter 3-4 and the water filling pipe 3-5. One path is connected to the water filling valve 3-6, the water filling pump 3-1, and the water filling check valve 3-7, and the other path is connected to the pressure valve 3-8, the pressure pump 3-2, and the pressure check valve 3-9. The two paths are then merged and connected to the main water filling valve 3-10 together with the balance valve 2-7.

[0026] One end of the balancing container 2-2 in the pressure regulating loop 2 is connected to the pressure stabilizer 2-1, and the other end is connected to the balancing valve 2-7 and then connected to the main water filling valve 3-10. The first electric valve check valve 2-5 is connected above the pressure stabilizer 2-1, and the second electric valve check valve 2-6 is connected to the bottom of the pressure stabilizer 2-1. A manual stop valve 2-4 and a balancing safety valve 2-3 are connected in series above the upper vertical side of the pressure stabilizer 2-1. The cavitation loop 9 is connected to the pressure stabilizer 2-1 by a vacuum pump 9-1 through a connecting valve 9-2, an electric exhaust valve 9-4, and a vacuum pipe 9-3. Two vacuum exhaust valves 8-9 are installed in series on the vacuum pipe 9-3.

[0027] like Figure 2As shown, the main circuit 1 is connected to the test circuit inlet isolation valve 4-4 at the inlet pipe section main pipeline 1-5 of the test main pump 1-1, and the test circuit inlet isolation valve 4-4 is further connected to the test pump 4-1 through the test pipeline 4-2, and the outlet section of the test pump 4-1 is connected to the test circuit outlet isolation valve 4-6, the test circuit regulating valve 4-3 and the test circuit flowmeter 4-5 through the test pipeline 4-2 and the outlet pipe section of the main pipeline 1-5 of the test main pump 1-1 of the main circuit 1 to form the test circuit 4.

[0028] The cooler outlet isolation valve 5-8 of the main circuit cooling circuit 5, the main circuit cooler 5-1, and the cooler inlet isolation valve 5-2 are connected to the test circuit 4 through the main circuit cooling pipeline 5-3. A cooler drain valve 8-3 is installed at the bottom of the main circuit cooler 5-1. Two parallel main circuit cooling drain valves 8-4 are installed on the main circuit cooling pipeline 5-3 and then connected in series with the main circuit cooling drain isolation valve 8-5. The cooling water of the main circuit cooler 5-1 is connected to the electric water distribution valve 7-6 of the cooling tower system 7 after passing through the cooler cooling water flow meter 5-5, the cooler cooling water check valve 5-4, the main cooler inlet pipe 5-10, and the main cooler cooling water pump 5-9. The return water of the cooling water of the main circuit cooler 5-1 is connected to the cooling tower return pipe 7-8 through the main cooler return pipe 5-6 and the main cooler return pipe valve 5-7. The cooling tower return pipe 7-8 is connected with a cooling water return drain valve 8-7.

[0029] The tap water system 11 is divided into two paths after passing through the manual valve 11-1, one of which is connected to the test pump cooling water inlet pipe 6-5 of the test pump cooling circuit 6 through the electric valve 11-2, and the other is connected to the test pump cooling water inlet pipe 6-6 of the test pump cooling circuit 6; and the test pump cooling circuit 6 is composed of two paths, one of which is connected to the water diverter valve 7-7, passes through the test pump cooling water pump 6-2, connects to the cooling test pump check valve 6-4 and the test pump cooling water inlet pipe 6-6, and then connects to the test main pump 1-1 and is connected to the test main pump 1-1, and the test main pump 1-1 is connected to the first After the return regulating valve 6-10, it is connected to the cooling tower return pipe 7-8 through the test pump cooling water return pipe 6-8; a cooling water flow regulating valve 6-11 is bridged between the water diverter valve 7-7 and the test pump cooling water return pipe 6-8; the other route is connected through the water diverter valve 7-7, passes through the test pump cooling water pump 6-1, connects to the cooling test pump check valve 6-3 and the test pump cooling water inlet pipe 6-5, and then connects to the test pump 4-1, and is connected from the test pump 4-1, connected to the cooling tower return pipe 7-8 after connecting to the fourth regulating valve 6-9 through the test pump cooling water return pipe 6-7.

[0030] The cooling tower 7-1 is connected to the cooling tower pipeline 7-5 and then to the cooling tower water tank 7-2 via the cooling tower connecting valve 7-4, and then to the filter 7-3 and then to the cooling tower pipeline 7-5, the electric water dividing valve 7-6 and the water dividing valve 7-7. The cooling tower drain valve 8-6 is connected to the cooling tower pipeline 7-5 at the outlet of the cooling tower 7-1.

[0031] A multifunctional high temperature and high pressure comprehensive testing device of the present invention, such as Figure 1 As shown: It consists of a main circuit 1, a pressure regulating circuit 2, a water filling circuit 3, a test circuit 4, a main circuit cooling circuit 5, a test pump cooling circuit 6, a cooling tower 7, a discharge circuit 8, a cavitation circuit 9, a water making device 10, and a tap water system 11.

[0032] The outlet of the test main pump 1-1 is connected to the main circuit regulating valve 1-2 through the main circuit pipeline 1-5, and then the main circuit regulating valve 1-2 is connected to the ceramic electric heater 1-3 and the main circuit flow meter 1-6, and then connected back to the test main pump 1-1 through the main circuit pipeline 1-5 to form the main circuit 1 of the whole test device; at the same time, two main circuit auxiliary valves 1-7 and a safety valve 1-4 are connected in series on the main circuit 1, and a main circuit first drain valve 8-1 is connected near the ceramic electric heater 1-3 of the main circuit 1, and two main circuit second drain valves 8-2 are connected in series near the main circuit auxiliary valve 1-7.

[0033] After the water generator 10 is connected to the water storage tank 3-3, it is then connected to the filter 3-4 and the water filling pipe 3-5 and then divided into two paths: one path is connected to the water filling valve 3-6, the water filling pump 3-1, and the water filling check valve 3-7, and the other path is connected to the pressure valve 3-8, the pressure pump 3-2, and the pressure check valve 3-9. After that, the two paths are merged together and connected to the main water filling valve 3-10 together with the balance valve 2-7.

[0034] Then connect one end of the balancing container 2-2 to the stabilizer 2-1, and one end to the balancing valve 2-7 and then to the main water filling valve 3-10. The first electric valve check valve 2-5 is connected above the stabilizer 2-1, and the other end of the first electric valve check valve 2-5 is connected to the inlet end of the cooler water inlet isolation valve 5-2. The second electric valve check valve 2-6 is connected to the bottom of the stabilizer 2-1, and the other end of the second electric valve check valve 2-6 is connected to the outlet end of the cooler water outlet isolation valve 5-8 after merging with the main water filling valve 3-10. The manual stop valve 2-4 and the balancing safety valve 2-3 are connected in series above the upper vertical side of the stabilizer 2-1.

[0035] The vacuum pump 9-1 is connected to the voltage stabilizer 2-1 through the connecting valve 9-2, the electric exhaust valve 9-4, and the vacuum pipe 9-3 to form a cavitation circuit 9, and then two vacuum exhaust valves 8-9 are installed in series on the vacuum pipe 9-3.

[0036] Connect the main pipeline 1-5 of the inlet pipe section of the test main pump 1-1 of the main loop 1 with the inlet isolation valve 4-4 of the test loop, and then connect the inlet isolation valve 4-4 of the test loop with the test pump 4-1 through the test pipeline 4-2, and then connect the outlet section of the test pump 4-1 with the outlet isolation valve 4-6 of the test loop, the test loop regulating valve 4-3 and the test loop flowmeter 4-5 through the test pipeline 4-2 and the outlet pipe section of the main pipeline 1-5 of the outlet pipe section of the test main pump 1-1 of the main loop 1 to form a test loop 4.

[0037] like Figure 3 As shown, the cooler outlet isolation valve 5-8 is connected to the inlet end of the test circuit inlet isolation valve 4-4 of the test circuit 4, and then the cooler outlet isolation valve 5-8 is connected to the main circuit cooler 5-1 and the cooler inlet isolation valve 5-2 through the main circuit cooling pipeline 5-3 and then to the outlet end of the test circuit flow meter 4-5 of the test circuit 4 through the main circuit cooling pipeline 5-3. The cooling water for cooling the main circuit cooler 5-1 is connected to the electric water distribution valve 7-6 of the cooling tower system 7 after passing through the cooler cooling water flow meter 5-5, the cooler cooling water one-way valve 5-4, the main cooler inlet pipe 5-10, and the main cooler cooling water pump 5-9. The return water of the cooling water of the main circuit cooler 5-1 is connected to the cooling tower return pipe 7-8 through the main cooler return pipe valve 5-7, thus forming the main cooling circuit 5. Afterwards, two parallel main circuit cooling drain valves 8-4 are installed on the main circuit cooling pipe 5-3 before the inlet of the cooler outlet isolation valve 5-8 and then connected in series with the main circuit cooling drain isolation valve 8-5, and a second cooler drain valve 8-3 is installed at the bottom of the main circuit cooler 5-1.

[0038] The tap water system 11 is divided into two paths after passing through the manual valve 11-1, one of which is connected to the test pump cooling water inlet pipe 6-5 of the test pump cooling circuit 6 through the electric valve 11-2, and the other is connected to the test pump cooling water inlet pipe 6-6 of the test pump cooling circuit 6; and the test pump cooling circuit 6 is composed of two paths, one of which is connected to the water diversion valve 7-7, passes through the test pump cooling water pump 6-2, and is connected to the cooling test pump check valve 6-4 and the test pump cooling water inlet pipe 6-6, and then is connected to the test main pump 1-1 and connected from the test main pump 1-1, and the test main pump 1-1 is then connected to the first return water regulating valve 6-10 and then passed through the test pump The cooling water return pipe 6-8 is connected to the cooling tower return pipe 7-8; then a cooling water flow regulating valve 6-11 is bridged between the water diverter valve 7-7 and the test pump cooling water return pipe 6-8; the other route is connected through the water diverter valve 7-7, passes through the test pump cooling water pump 6-1, and then connected to the cooling test pump one-way valve 6-3 and the test pump cooling water inlet pipe 6-5, and then connected to the test pump 4-1, and then connected from the test pump 4-1, through the test pump cooling water return pipe 6-7 to connect to the fourth regulating valve 6-9 and then connected back to the cooling tower return pipe 7-8 and then connected back to the cooling tower 7-1, and the cooling tower return pipe 7-8 is connected to the cooling tower return drain valve 8-7.

[0039] The cooling tower 7-1 is connected to the cooling tower water tank 7-2 through the cooling tower pipeline 7-5 and the cooling tower connecting valve 7-4, and then connected to the filter 7-3 and then to the electric water dividing valve 7-6 and the water dividing valve 7-7 through the cooling tower pipeline 7-5. The cooling tower drain valve 8-6 is connected to the cooling tower pipeline 7-5 at the outlet of the cooling tower 7-1.

[0040] like Figure 3 As shown, some equipment of the test circuit 4, including the test pump 4-1, the test circuit outlet isolation valve 4-6, the test circuit regulating valve 4-3 and the test circuit flow meter 4-5, and the main pipeline 1-5, the first regulating valve 1-2, the ceramic electric heater 1-3 and the main circuit flow meter 1-6, the test circuit inlet isolation valve 4-4 and the test pipeline 4-2, can be connected together to form a separate heatable test pipeline.

[0041] like Figure 4 As shown, the test pump 4-1, the test circuit outlet isolation valve 4-6, the test circuit regulating valve 4-3 and the test circuit flow meter 4-5, the cooler water inlet isolation valve 5-2, the main circuit cooler 5-1, the main circuit cooling pipeline 5-3, the cooler water outlet isolation valve 5-8, the test circuit inlet isolation valve 4-4, and the test pipeline 4-2 can be connected together to form a separate common test circuit.

Claims

1. A multifunctional high temperature and high pressure comprehensive testing device, characterized by: The invention is composed of a main circuit (1), a pressure regulating circuit (2), a water filling circuit (3), a test circuit (4), a main circuit cooling circuit (5), a test pump cooling circuit (6), a cooling tower system (7), a discharge circuit (8), a cavitation circuit (9), a water generator (10), and a tap water system (11). The test main pump (1-1) is connected to the main circuit regulating valve (1-2) through the main circuit pipeline (1-5). The main circuit regulating valve (1-2) is connected to the ceramic electric heater (1-3) and the main circuit flow meter (1-6) and then returns to the test main pump (1-1) to form the main circuit (1). The main circuit (1) is connected to the main pipeline auxiliary valve (1-6) in series. -7) and a main pipeline safety valve (1-4); a main circuit first drain valve (8-1) and two main circuit second drain valves (8-2) connected in series are connected to the main circuit (1); a water generating device (10) is connected to a water storage tank (3-3) of a water filling circuit (3); a water storage tank drain valve (8-10) is connected to the bottom of the water storage tank (3-3); a main water filling valve (3-10) of the water filling circuit (3) is connected to a lower electric stop valve (2-6) of a pressure regulating circuit (2) and then connected to a main circuit cooling circuit (5); a cavitation pipeline (9-3) of a cavitation circuit (9) is connected to a voltage regulator (2-1) of a pressure regulating circuit (2); a main circuit cooling circuit The two ends of the test circuit (5) are connected to the test circuit (4), and the two ends of the test circuit (4) are connected to the main circuit (1); the water inlet of the test pump cooling circuit (6) is connected to the water distribution valve (7-7) of the cooling tower system (7), and the return water of the test pump cooling circuit (6) is connected to the cooling tower return pipe (7-8) of the cooling tower system (7); the water inlet of the cooling water pump (5-9) of the main cooling circuit (5) is connected to the main cooling circuit (7-6) of the cooling tower system (7), and the return water of the main cooling circuit (5) is directly connected to the cooling tower return pipe (7-8) through the cooler cooling water return pipe (5-6); one end of the balance container (2-2) in the pressure regulating circuit (2) is connected to the The pressure regulator (2-1) is connected to a pressure regulator (2-1), one end of which is connected to a balancing valve (2-7) and then to a main water filling valve (3-10); a first electric valve check valve (2-5) is connected to the top of the pressure regulator (2-1); a second electric valve check valve (2-6) is connected to the bottom of the pressure regulator (2-1); a manual stop valve (2-4) and a balancing safety valve (2-3) are connected in series above the upper vertical side of the pressure regulator (2-1); a cavitation circuit (9) is connected to the pressure regulator (2-1) by a vacuum pump (9-1) through a connecting valve (9-2), an electric exhaust valve (9-4) and a vacuum pipeline (9-3); and two vacuum exhaust valves (8-9) are installed in series on the vacuum pipeline (9-3);The main circuit (1) is connected to the test circuit inlet isolation valve (4-4) at the inlet pipe section of the test main pump (1-1), and the test circuit inlet isolation valve (4-4) is further connected to the test pump (4-1) through the test pipe (4-2). The outlet section of the test pump (4-1) is connected to the test circuit outlet isolation valve (4-6), the test circuit regulating valve (4-3) and the test circuit flow meter (4-5) through the test pipe (4-2) and the outlet pipe section of the main pipe (1-5) of the test main pump (1-1) of the main circuit (1) to form a test circuit (4); the test circuit (4) is a supporting device provided for the reverse flow test of the test main pump (1-1), and the test circuit outlet isolation valve (4-6) and the test circuit inlet isolation valve (4-4) for isolation are arranged on the circuit. When the reverse flow test is not performed, isolation is performed, and the test of the main circuit is not affected. ; 2. The multifunctional high-temperature and high-pressure comprehensive testing device according to claim 1 is characterized in that: After the water generating device (10) is connected to the water storage tank (3-3) of the water filling circuit (3), the water passes through the filter (3-4) and the water filling pipe (3-5) and is divided into two paths, one of which is connected to the water filling valve (3-6), the water filling pump (3-1) and the water filling check valve (3-7), and the other is connected to the pressure valve (3-8), the pressure pump (3-2) and the pressure check valve (3-9). The two paths are then combined and connected to the balance valve (2-7) and the main water filling valve (3-10).

3. The multifunctional high temperature and high pressure comprehensive testing device according to claim 1 is characterized in that: The cooler outlet isolation valve (5-8), the main circuit cooler (5-1), and the cooler inlet isolation valve (5-2) of the main circuit cooling circuit (5) are connected to the test circuit (4) through the main circuit cooling pipeline (5-3). A cooler drain valve (8-3) is installed at the bottom of the main circuit cooler (5-1). Two parallel main circuit cooling drain valves (8-4) are installed on the main circuit cooling pipeline (5-3) and are connected in series with the main circuit cooling drain isolation valve (8-5). The cooling water of the main circuit cooler (5-1) The cooling water return of the main circuit cooler (5-1) is connected to the cooling tower return pipe (7-8) via the main cooler return pipe (5-6) and the main cooler return pipe valve (5-7), and a cooling water return drain valve (8-7) is connected to the cooling tower return pipe (7-8).

4. The multifunctional high temperature and high pressure comprehensive testing device according to claim 1 is characterized in that: The tap water system (11) is divided into two paths after passing through a manual valve (11-1), one of which is connected to the test pump cooling water inlet pipe (6-5) of the test pump cooling circuit (6) through an electric valve (11-2), and the other is connected to the test pump cooling water inlet pipe (6-6) of the test pump cooling circuit (6); and the test pump cooling circuit (6) is composed of two paths, one of which is connected to the test pump cooling water pump (6-2) through the water diverter valve (7-7) and connected to the cooling test pump check valve (6-4) and the test pump cooling water inlet pipe (6-6), and then connected to the test main pump (1-1) and connected from the test main pump (1-1), and the test main pump (1-1) is connected to the first After the return regulating valve (6-10), the cooling water return pipe (6-8) of the test pump is connected to the cooling tower return pipe (7-8); a cooling water flow regulating valve (6-11) is bridged between the water diverter valve (7-7) and the cooling water return pipe (6-8) of the test pump; the other route is connected from the water diverter valve (7-7), passes through the test pump cooling water pump (6-1), connects to the cooling test pump check valve (6-3) and the test pump cooling water inlet pipe (6-5), and then connects to the test pump (4-1), and then is connected from the test pump (4-1), connected to the cooling water return pipe (6-7) of the test pump, and then connected to the cooling tower return pipe (7-8) through the fourth regulating valve (6-9).

5. The multifunctional high-temperature and high-pressure comprehensive testing device according to claim 1 is characterized in that: The cooling tower (7-1) is connected to a cooling tower pipeline (7-5) and then to a cooling tower water tank (7-2) via a cooling tower connecting valve (7-4), and then to a filter (7-3), and then to a cooling tower pipeline (7-5), an electric water dividing valve (7-6), and a water dividing valve (7-7). A cooling tower drain valve (8-6) is connected to the cooling tower pipeline (7-5) at the outlet of the cooling tower (7-1).

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