A test system suitable for high temperature and high pressure steam valve

Abstract

The utility model belongs to valve technical field discloses a kind of test systems suitable for high-temperature high-pressure steam valve, including liquid tank, the liquid tank is connected booster pump front end stop valve, booster pump front end stop valve connects liquid booster pump, liquid booster pump connects booster pump outlet check valve, booster pump outlet check valve connects the port one of heating reaction kettle of heating reaction kettle, the port two of heating reaction kettle connects the one end of reaction kettle steam output stop valve, the other end of reaction kettle steam output stop valve connects heater, the one end of heater connection with heating insulation box. The utility model has the beneficial effects: using semi-closed semi-open circulation system, system measured valve front end inside can be in 18MPa high-pressure state, valve rear end realizes rear end component temperature and pressure grade reduction by cooling measure, greatly reduce the overall cost of system.

Claims

1. A test system suitable for use with valves of the high temperature high pressure steam type, characterized in that: The system includes a liquid tank (23), which is connected to a booster pump front-end shut-off valve (25). The booster pump front-end shut-off valve (25) is connected to a liquid booster pump (27). The liquid booster pump (27) is connected to a booster pump outlet check valve (28). The booster pump outlet check valve (28) is connected to port one of the heated reactor (6). Port two of the heated reactor (6) is connected to one end of the reactor steam output shut-off valve (10). The other end of the reactor steam output shut-off valve (10) is connected to a heater (11). The heater (11) is connected to one end of a heated insulation box (16). A space is provided between the heater (11) and the heated insulation box (16). An upstream temperature sensor (12) and an upstream pressure sensor (14) are provided. The valve to be tested is installed inside the heated and insulated box (16). The other end of the heated and insulated box (16) is connected to the inlet of the leakage measurement shut-off valve (30) and the inlet of the shut-off valve (20) before the valve to be tested. The outlet of the leakage measurement shut-off valve (30) is connected to a measuring cup (32) through a pipeline. A downstream temperature sensor (17) and a downstream pressure sensor (19) are provided between the inlet of the shut-off valve (20) before the valve to be tested and the other end of the heated and insulated box (16). The outlet of the shut-off valve (20) before the valve to be tested is connected to a heat exchanger (21). The heat exchanger (21) is connected to a liquid tank (23) through a regulating valve (22).

2. The test system for valves suitable for high temperature and high pressure steam according to claim 1, characterized in that: The liquid tank (23) is connected to the liquid source via a liquid shut-off valve (24).

3. The test system for valves suitable for high temperature and high pressure steam according to claim 1, characterized in that: A filter (26) is provided between the front shut-off valve (25) of the booster pump and the liquid booster pump (27).

4. The test system for valves suitable for high temperature and high pressure steam according to claim 1, characterized in that: A cooling coil (29) is provided between the outlet check valve (28) of the booster pump and port one of the heating reactor (6).

5. The testing system for high-temperature and high-pressure steam valves according to claim 1, characterized in that: The heating reactor (6) is equipped with a differential pressure level gauge (7), a pressure sensor (8) and a safety rupture disc (33), and the three ports of the heating reactor (6) are connected to the reactor pressure relief valve (9).

6. The test system for valves suitable for high temperature and high pressure steam according to claim 1, characterized in that: An upstream pressure gauge (13) is provided between the heater (11) and the heated insulation box (16), a downstream pressure gauge (18) is provided between the inlet of the valve before the valve being tested (20) and the other end of the heated insulation box (16), and a leakage pipeline cooling fan (31) is provided at the pipeline outlet of the leakage measurement shut-off valve (30).

7. The test system for valves suitable for high temperature and high pressure steam according to claim 1, characterized in that: The liquid tank (23) is a water tank, the heater (11) is a steam tube heater, and the heat exchanger (21) is a shell-and-tube heat exchanger.

8. The test system for valves suitable for high temperature and high pressure steam according to claim 1, characterized in that: The other end of the steam output shut-off valve (10) of the reactor is connected to the liquid tank (23) through the emergency discharge valve (15) of the reactor.

9. The test system for valves for high temperature and high pressure steam according to claim 1, characterized in that: The test system also includes an inlet shut-off valve (3), the inlet of which is connected to a high-pressure nitrogen inlet, a pressure sensor (2) is provided at the inlet of the inlet of the inlet shut-off valve (3), and the outlet of the inlet shut-off valve (3) is connected to a pilot proportional pressure regulating valve (4), which is connected to port one of the heating reactor (6) through an inlet one-way valve (5).

10. The test system for valves suitable for high temperature and high pressure steam according to claim 9, characterized in that: The test system also comprises a compressed air inlet, which is connected to an electric proportional valve (1), which is connected to the pilot proportional pressure regulating valve (4).

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