Detecting device for safety valve
A technology of detection device and safety valve, which is applied in the direction of measuring device, testing of mechanical parts, testing of machine/structural parts, etc. The effect of detection accuracy
Pending Publication Date: 2018-09-07
河南省铭澳特种设备检测有限公司
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Problems solved by technology
However, the working efficiency of some high-temperature steam generators is low, and it takes a long time for the pressure of steam generated by them to reach the set value; in addition, limited by the power of some high-temperature steam generators, the steam pressure they can provide is relatively small , not applicable to the inspection of large take-off safety valves
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Embodiment Construction
[0014] The present invention will be further described below.
[0015] Such as figure 1 As shown, a detection device for a safety valve includes a water storage tank 1, a high-pressure pump 2, a high-temperature steam generating device 3, a sealed booster tank 4, and a hydraulic cylinder vertically fixedly connected to the upper part of the booster tank 4 5. The water inlet of the high-pressure pump 2 is connected through a pipeline to the bottom of the water storage tank 1, and the water inlet of the high-temperature steam generating device 3 is connected to the water outlet of the high-pressure pump 2 through a pipeline;
[0016] The pressurization tank 4 is vertically arranged, and it has a cylindrical inner cavity, and a plunger 15 that is slidingly and sealingly engaged with it is arranged inside; A safety valve 14 is connected to the pressure pipeline 13; the piston rod of the hydraulic cylinder 5 slides through the upper end cover of the booster tank 4 and is fixedly c...
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Provided is a detecting device for a safety valve. A water storage tank, a high pressure pump and a high temperature steam generating device are sequentially connected by a pipe. A pressurized tank isvertically disposed, and a plunger is arranged inside the pressurized tank; the bottom of the pressurized tank is connected with the safety valve, a piston rod of a hydraulic cylinder slidably passesthough an upper end cover of the pressurized tank and then is fixedly connected with the upper portion of the plunger, an outlet of the high temperature steam generating device is connected with oneside of the middle portion of the pressurized tank through a pipe, and the other side of the middle portion of the pressurized tank is connected with a main exhaust pipe communicated with an inner cavity of the pressurized tank. The air outlet end of the main exhaust pipe is connected with two flange detection interfaces respectively through two branch exhaust pipes, and the high temperature steamgenerating device is provided with a thermometer; a first pressure meter and a first stop valve are arranged on a pipe between the high temperature steam generating device and the pressurized tank; and the main exhaust pipe is connected with a second pressure meter and a second stop valve. The device can be favorable for shortening the time of inspection steam generation, and can help to completethe inspection of the large take-off pressure safety valve by using the low-power high temperature steam generating device.
Description
technical field [0001] The invention belongs to the technical field of safety valve detection, and in particular relates to a detection device for safety valves. Background technique [0002] The safety valve is an important accessory of the boiler. When the boiler pressure exceeds the set value, it can release the pressure by automatically discharging steam to prevent the pressure from continuously rising, thereby ensuring the safety of the boiler. After the safety valve used on the pot is reassembled after regular maintenance or other maintenance treatments, the take-off pressure of the safety valve must be re-adjusted to meet the expected safety requirements, that is, the safety valve needs to be calibrated. The traditional commonly used safety valve calibration method is mainly the normal temperature gas calibration method. This method is relatively simple to operate, but there is a large error between the calibration value and the actual value of the high temperature op...
Claims
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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 郭亚军
Owner 河南省铭澳特种设备检测有限公司