9 results about "Fusible plug" patented technology

The invention provides fusible plug manufacturing equipment, and relates to the technical field of fusible plug manufacturing. The fusible plug manufacturing equipment comprises a box body provided with a containing cavity and a workbench, and the workbench is provided with a casting platform; the heating assembly is arranged in the containing cavity and located under the casting platform, and the heating assembly is used for heating the casting platform; the cooling assembly is arranged in the containing cavity and comprises a cooling plate and a cooling channel arranged in the cooling plate, the cooling plate is located between the casting platform and the heating assembly, and the cooling assembly can transfer heat generated by the heating assembly to the casting platform; the control assembly is arranged in the box body and used for controlling starting and stopping of the heating assembly and the cooling assembly. And the production efficiency of the fusible plug can be improved.

The embodiment of the present application provides a wellhead safety control system, which is used for improving the working efficiency and reliability of the wellhead safety control system. The control system comprises a high-pressure control system and a low-pressure control system. The high-pressure control system comprises a ground safety valve high-pressure control main circuit, a ground safety valve high-pressure control branch circuit, a downhole safety valve high-pressure control main circuit and a downhole safety valve high-pressure control branch circuit, and is used for providing high-pressure hydraulic pressure for the control system. The low-pressure control system comprises a fusible plug control branch circuit, a ground safety valve low-pressure control branch circuit and a downhole safety valve low-pressure control branch circuit, and is used for controlling the high-pressure control system to provide low-pressure hydraulic pressure.

An embodiment of an outdoor unit of a refrigeration cycle device includes a compressor, a pressure container that is connected to the compressor, a relief pipe that is connected to the pressure container, and a fusible plug that plugs an opening that is formed on the relief pipe. The relief pipe has a connector that is connected to the pressure container, and at least one bend that is formed on a portion that is located between the connector and the opening.

1. Name of this design product: Integrated container wellhead safety control system. 2. Application of this design: Used for onshore oil and gas extraction, integrating a hydraulic control unit (high-pressure hydraulic system, low-pressure hydraulic system, hydraulic control system, fusible plug circuit), RTU control unit, power supply and distribution system and auxiliary equipment facilities into one unit. It has many functions such as controlling downhole safety valves, wellhead main safety valves, wing safety valves, regulating electric switches, throttle valves, fire detection, combustible gas monitoring, data acquisition, display and transmission, etc., to meet the normal and stable use of internal facilities under harsh working conditions. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

A testing device for airtightness testing of push-in fusible plugs, belonging to the field of fusible plugs. The testing device includes a base and a cover plate; the base and cover plate are connected by a hexagonal head bolt; a washer is installed on the contact surface between the hexagonal head bolt and the cover plate; a boss is provided in the middle of the base, and a first sealing ring is provided on the boss; a recess is provided at the contact point between the middle of the cover plate and the boss of the base; the boss and the recess achieve a sealed connection between the base and the cover plate. The fusible plug installation method of this invention is from the inside out, consistent with the inflation method during product use, solving the problem of lacking a testing device for airtightness testing of push-in fusible plugs, and eliminating safety hazards when the air pressure is from the outside in during airtightness testing; this invention facilitates airtightness testing of push-in fusible plugs and improves the testing efficiency of push-in fusible plugs.

The application aims to provide a high-efficiency energy-saving type hydraulic control safety valve actuator and a use method thereof, and belongs to the technical field of valve control. The actuator comprises an oil tank, a high-low pressure valve group and a fusible plug. One end of the bottom of the oil tank is provided with pipeline I. A hand pump, a check valve, a main oil source accumulator and a main oil source pressure gauge are sequentially arranged on the pipeline I. The high-low pressure valve group is connected with a field gas source. The fusible plug is connected with a pilot oil source accumulator and a pilot pressure gauge I through pipeline II. The top of the oil tank is connected with the pipeline I through pipeline III. A stop valve II and a hydraulic control pilot valve are arranged on the pipeline III. A pipeline IV is arranged between the pipeline III and the pipeline I. A stop valve I is arranged on the pipeline IV. The hydraulic control pilot valve is connected with the pipeline II through pipeline V. The application can prolong the pressure maintaining time of the hydraulic control safety valve and reduce the pressurizing frequency of the hand pump.

Provided is a tank equipped with a container body to store hydrogen gas, a self-closing valve provided in the container body and configured to start and stop discharging the hydrogen gas by opening and closing, a fusible plug provided in the container body and configured to open when a predetermined temperature is reached to release the gas in the tank, and a member that delays heat transfer to the self-closing valve later than to the container body and / or a member that promotes heat transfer to the fusible plug when the hydrogen cartridge is heated.

The invention discloses a test system and a test method for a fusible plug of a hydraulic coupler, and belongs to the technical field of hydraulic couplers. The test system comprises a test main body device. The test system further comprises a driving device which is in transmission connection with the test main body device and is used for driving the test main body device to rotate. The test system further comprises a test connecting device, and the test connecting device is arranged on the test main body device and used for arranging the fusible plug. The testing system further comprises a circulating device, the circulating device is matched with the testing main body device and the testing connecting device to form a working oil circulating flow channel, and working oil circularly flows in the working oil circulating flow channel and flows through the fusible plug. In this way, the actual working performance of the fusible plug can be accurately reflected, limit working condition testing is achieved, and energy consumption is reduced.

The utility model relates to the technical field of valves, in particular to a manual steel cylinder valve with a safety device, which comprises a valve body, a bonnet, a valve rod, a hand wheel, a plug core and a fusible plug, the bonnet is arranged inside the valve body, the outer wall of the bonnet is in threaded connection with the inner wall of an upper port of the valve body, the valve rod is arranged inside the bonnet, and the outer wall of the valve rod is in threaded connection with the inner wall of the bonnet. The steel ball, the piston, the pressing ring, the diaphragm and the valve clack are sequentially arranged in the valve body on the lower portion of the valve rod from top to bottom, a first flow channel opening is formed in a lower port of the valve body, a second flow channel opening and a safety detection opening are formed in the two side faces of the valve body respectively, the plug core is arranged on the outer side of the second flow channel opening, and the fusible plug is arranged on the outer side of the safety detection opening. The fusible plug and the rupture disk are additionally arranged on the valve body to form a safe blasting mechanism, and multiple layers of diaphragms and multiple groups of sealing rings are arranged in the valve body to be matched, so that the overall sealing performance is improved, leakage is prevented, and the use safety of the steel cylinder valve is improved.