KR-20260067863-A - Relief valve popping test apparatus

KR20260067863AKR 20260067863 AKR20260067863 AKR 20260067863AKR-20260067863-A

Abstract

The present invention relates to a relief valve popping test device capable of automatically checking whether a safety relief valve installed in various factory facilities and field piping lines is operating normally, comprising: an oil tank for storing test oil for the relief valve; a needle valve for removing air from the pipeline of the relief valve popping test device; an oil pump for pumping and supplying test oil stored in the oil tank; an oil filter for removing impurities contained in the oil supplied through the oil pump; a safety valve for ensuring safety by ejecting fluid to the outside when the pressure on the pipeline reaches a set pressure and restoring it to a normal state when the pressure falls below a certain pressure; a shut-off valve for supplying or blocking the oil supplied through the oil filter to a ball valve; a ball valve equipped with an inspection relief valve and regulating the pressure of the inspection relief valve with the oil supplied through the shut-off valve; and a digital gauge for measuring the pressure according to the operation of the relief valve and transmitting the measured pressure data to a connected automatic recording device.

Inventors

곽영환

Assignees

에스씨에스 주식회사

Dates

Publication Date: 20260513
Application Date: 20241106

Claims (5)

Oil tank for storing oil for relief valve testing; Needle valve for removing air from the pipeline of a relief valve popping test device; An oil pump that pumps and supplies test oil stored in the above oil tank; An oil filter for removing impurities contained in the oil supplied through the above oil pump; A safety valve that ensures safety by discharging fluid to the outside when the pressure on the above pipeline reaches a set pressure, and restoring it to a normal state when the pressure falls below a certain pressure; A shut-off valve that supplies or blocks oil supplied through the above oil filter to a ball valve; A ball valve equipped with an inspection relief valve and regulating the pressure of the inspection relief valve with oil supplied through the shut-off valve; and A relief valve popping test device characterized by including a digital gauge that measures pressure according to the operation of the relief valve mounted above and transmits the measured pressure data to a connected automatic recording device.
A relief valve popping test device according to claim 1, wherein the ball valve is provided in a plurality corresponding to the size of the inspection relief valve.
A relief valve popping test device in claim 1, wherein the ball valve raises or lowers the pressure of the relief valve by controlling the flow rate of oil.
In claim 1, the automatic recording device is, A relief valve popping test device characterized by checking the operating status of the oil pump and, if the operation of the oil pump is not normal, determining that there is a shortage of hydraulic oil or that the oil filter is clogged with foreign matter, and generating and displaying maintenance information or transmitting the maintenance information to an administrator terminal via communication.
In claim 1, A level gauge that measures and visually displays the amount of oil in the oil tank; A relief valve popping test device characterized by further including a gate valve for supplying or blocking oil into the oil tank.

Description

Relief valve popping test apparatus The present invention relates to a relief valve popping test, and more specifically, to a relief valve popping test device capable of automatically checking whether a safety relief valve installed in various factory facilities and field piping lines is operating normally. Generally, high-temperature, high-pressure boilers are used in plants such as thermal power plants, nuclear power plants, petrochemical plants, and oil refineries. Since the boiler's set pressure must be monitored frequently, the boiler piping is equipped with a high-pressure gas safety valve that automatically detects and alarms the set pressure, and a safety relief valve that opens to release fluid and lower the pressure when the fluid pressure exceeds a certain level. Here, the high-pressure gas safety valve functions to ensure the safety of the boiler and related equipment by mechanically detecting the pressure at the valve inlet when it exceeds a certain pressure and releasing the excess pressure to protect the device from explosion, while also allowing the noise generated during the release to be detected by people nearby as a signal. In addition, when the pressure at the valve inlet drops below a certain pressure again, it returns to its original state. A relief valve is a valve that lowers pressure by opening to release fluid when the pressure exceeds a certain level. It is installed in facilities handling fluids, such as boilers, pressure vessels, and piping, and is used to prevent safety accidents caused by excessive pressure. As these relief valves are used for an extended period, the operating pressure involved in opening and closing the valve changes, potentially causing the valve to open at a pressure different from the initially set pressure. For example, a spring-type valve driven by a spring allows the operating pressure for fluid discharge to be set by adjusting the length of the spring; however, as the spring loses its elasticity over time, the valve may open at a pressure lower than the initially set pressure. In addition, relief valves must be checked for defects after on-site removal and overhaul, and only products found to be free of defects should be installed on-site. Therefore, relief valves must be periodically inspected and calibrated to ensure they always open at a constant pressure, and products free of defects must be installed. However, the method used to inspect these relief valves involves an operator visually checking the pressure value of the relief valve under test using an analog gauge. This visual inspection method has the disadvantage that the reliability of the inspection results is low because it is difficult to determine the instantaneous operating pressure value and the verification of minute pressure values is also unclear, making it difficult to accurately determine the operating pressure and closing pressure values. Therefore, a relief valve popping test device is required to automatically and accurately inspect for abnormalities in the relief valve. FIG. 1 is a schematic diagram of a relief valve popping test device according to the present invention, and FIGS. 2 and FIGS. 3 are a front view and a plan view of a relief valve popping test device according to the present invention, and Figure 4 is a photograph showing an example of a relief valve popping test device according to the present invention. A relief valve popping test device according to a preferred embodiment of the present invention will be described in detail below with reference to the attached drawings. The terms or words used in the present invention described below should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely preferred embodiments of the present invention and do not represent all technical concepts of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application. FIG. 1 is a schematic diagram of a relief valve popping test device according to a preferred embodiment of the present invention, FIG. 2 and FIG. 3 are a front view and a plan view of a relief valve popping test device according to the present invention, and FIG. 4 is a photograph showing an embodiment of a relief valve popping test device according to the present invention. The relief valve popping test device (100) according to the present invention is equipped with an oil tank (101) at the bottom for storing oil for testing the relief valve. At any location within the oil tank (101), a gate valve (116) is provided to supply or block oil