39results about How to "Improve pressure test efficiency" patented technology

The invention discloses an elastic cleaning ball, a cleaning device and a cleaning method and a pressure test device and a pressure test method for a pipeline. The elastic cleaning ball comprises an elastic solid core, an elastic reinforcing plate arranged on the rear surface of the elastic solid core and an elastic coating which wraps the elastic solid core and the elastic reinforcing plate. The cleaning device comprises a ball serving device and a ball receiving device which are connected to both ends of the pipeline, and at least one elastic cleaning ball. The elastic cleaning ball is compactly contacted with the inner wall of the pipeline in the cleaning process. According to the cleaning device and cleaning method provided by the invention, the pipeline for conveying ore pulp is efficiently cleaned. The pressure test device comprises a first end water injection device, a water injection pump and a rear end emptying device which are connected to both ends of the pipeline as well as the elastic cleaning ball for emptying air in the pipeline. According to the pressure test device and method provided by the invention, the efficient pressure test efficiency is realized, and air in the pipeline can be completely emptied.

The invention discloses a pressure test pit. The pit comprises a pit body, a folding-type pit cover and a pit cover driving mechanism, wherein the folding-type pit cover is arranged at the upper part of the pit body in a sliding manner and comprises a positioning end and a driving end; the positioning end of the folding-type pit cover is movably connected to the end part of the pit body; and the driving end of the folding-type pit cover is movably connected with the pit cover driving mechanism. According to the pressure test pit, firstly automatic opening and closing of the pit body can be quickly realized and secondly the pit body can be enabled to be in a relatively sealed state during testing, so that a situation caused by accidental injury is instantly compressed in the pit body and the pressure test risk is lowered.

The invention discloses a clamping-ring-type welding-free pressure test plugging device. The device comprises a fixed ring installed at the end of a pipeline and a skid-resistance fastening pressing sheet which is installed between the fixing ring and the outer surface of the pipeline, wherein a plugging blind plate is further installed at the end of the pipeline; a pressure sealing ring is further installed in the plugging blind plate, so that a plane between a bevel face at the end of the pipeline and the pressure sealing ring achieves effective face sealing. The device is easy to operate, and the quality problem of welded plugging is solved; moreover, the problem that the installing construction period is too long is also solved, and the efficiency of a pipeline pressure test is greatlyimproved; moreover, the device can be repeatedly utilized, and the cost for installing and building the pipeline is reduced.

The invention relates to a steel pipe test machine, in particular to a multi-steel-pipe water pressure test machine. The multi-steel-pipe water pressure test machine comprises a machine frame, whereina plurality of clamping mechanisms used for clamping steel pipes are arranged in the machine frame; a feeding mechanism used for pushing and conveying the steel pipes to the clamping mechanisms is arranged at one side of the machine; a blanking mechanism is arranged at the other side; a fixing mechanism is arranged at one end of the machine frame; a moving mechanism for pushing the steel pipes tothe fixing mechanism to be fixed is arranged at the other end; and a water pressure system used for implementing pressurization on the steel pipes is arranged on the fixing mechanism. Each clamping mechanism comprises a base and two clamping plates arranged above the base; at least two L-shaped clamping blocks are respectively arranged on the two clamping plates; the directions of the L-shaped clamping blocks on the two clamping plates are opposite, so that a clamping groove is formed between the adjacent L-shaped clamping blocks on the two clamping plates; the two clamping plates are in staggered arrangement; and a regulating mechanism used for regulating the size of the clamping groove is arranged at the bottom of the two clamping plates.

The invention relates to the technical field of pressure testing, and especially relates to pipeline pressure testing equipment. The equipment comprises a supporting rod, a pipeline to be subjected topressure testing and two sealing parts. The supporting rod is arranged in the pipeline to be subjected to pressure testing in a penetrating mode. The two sealing parts are arranged at the two ends ofthe supporting rod respectively and are used for sealing the two ends of the supporting rod and the pipeline to be subjected to pressure testing respectively. Each sealing part is provided with an inlet for a pressure test liquid to flow into the pipeline to be subjected to pressure testing. According to the pipeline pressure testing equipment provided by the invention, in the pipeline pressure testing process, the supporting rod is located in the pipeline and plays a role in supporting the pipeline, so that the pipeline is prevented from being bent in the pressure test process, and the pressure testing efficiency is improved.

The invention relates to a pressure testing device for a long-distance pipeline. The pressure testing device comprises a water filling unit and a pressurizing unit which are respectively mounted on afirst base and a second base. The invention further relates to a pressure testing method adopting the pressure testing device. The long-distance pipeline comprises a plurality of conveying pipe sections, and valves are arranged at the joints of the conveying pipe sections. The pressure testing method comprises the steps of filling the first conveying pipe section with water by using the water filling unit, pressurizing the first conveying pipe section by using the pressurizing unit after water filling is completed, simultaneously filling other conveying pipe sections with water by using the water filling unit, simultaneously using the pressurizing unit and the water filling unit until the last conveying pipe section is filled with water, and stopping the water filling unit after the waterfilling is completed, and pressurizing the last conveying pipe section by the pressurizing unit. The water filling unit and the pressurizing unit are respectively arranged on the two bases and are respectively pried, the water outlet pipe sections of the water filling unit and the pressurizing unit respectively comprise a hose, the movement is more convenient, the water filling unit and the pressurizing unit can simultaneously fill water and pressurize different conveying pipe sections, the time is saved, and the pressure testing efficiency is improved.

The invention provides a fracturing system pressure test control method, which includes the following steps: S1, the valve of the discharge pipeline of a fracturing device is closed; S2, a controlleroutputs a pulse signal to drive a motor of the fracturing device to rotate so as to increase the pressure of the discharge pipeline, and a pressure sensor of the discharge pipeline outputs a pressuresignal; and S3, the controller receives the pressure signal and compares the pressure signal with a preset pressure value; if the pressure reaches the preset pressure value, the pressure is maintained; and if the pressure does not reach the preset pressure value, the controller outputs a same pulse signal again to drive the motor of the fracturing device to rotate so as to increase the pressure ofthe discharge pipeline until the pressure reaches the preset pressure value. The pressure test operation of a fracturing system is realized through the steps. The fracturing system pressure test control method of the invention can greatly improve the safety of pressure test operation and improve the efficiency of pressure test.

The invention belongs to the technical field of pressure test equipment of pressure-bearing equipment, and particularly relates to an integrated mobile intelligent pressure test integrated device. According to the invention, a first high-pressure pump unit, a second high-pressure pump unit, a water injection pump unit, a first water collecting and distributing device unit, a second water collecting and distributing device unit, a pressure test water tank unit and a pressure test monitoring control unit are organically arranged, so the integrated device integrating multi-station pressure test,test process man-machine separation, automatic remote control operation, automatic test data storage, automatic generation and printing of a pressure test report, pressure test area monitoring alarm and container type mobile intelligent pressure test is realized; therefore, the efficiency of the pipeline pressure test of the integrated device is improved, and the labor intensity of operators is reduced.

The invention provides a pressure testing device and method of a cooling wall of a blast furnace. The device comprises a pressing plate, hoisting mechanisms, supporting columns and connecting rod structures, wherein the hoisting mechanisms, the supporting columns and the connecting rod structures are arranged at two ends of the pressing plate; the supporting columns are arranged between the end part of the pressing plate and the hoisting mechanisms; the connecting rod structures penetrate through the supporting columns; the driving ends, hinged with the hoisting mechanisms, of the supporting columns are connected to the first ends of the connecting rod structures and are used for driving the first ends of the connecting rod structures to up and down reciprocate; and the second ends of the connecting rod structures are pressed to the pressing plate and are rotatably connected to the pressing plate, and the second ends of the connecting rod structures are used for applying downward pressure to the pressing plate while the first ends of the connecting rod structures upwards move so as to compress a plurality of water cooling pipes through the pressing plate. According to the device, the top parts of the plurality of water cooling pipes are pressed through the pressing plate, and a hoisting mechanism set and a connecting rod structure set are arranged at each of two sides of the pressing plate; the hoisting mechanisms and the connecting rod structures are matched to apply pressure to the pressing plate from two ends, and thus the plurality of water cooling pipes can be synchronously compressed so as to perform pressure test on a workpiece, and as a result, the pressure test efficiency is greatly improved.

The invention discloses a static pressure testing device for an integrated packaging mechanical seal, which comprises a rack, and is characterized in that the bottom end of the rack is fixedly provided with an integrated packaging mechanical seal, the top end of the rack is fixedly provided with an oil cylinder, a piston rod of the oil cylinder is fixedly connected with the top end of a ventilating disc through a flange, the middle part of the ventilating disc is fixedly provided with an air inlet pipe, one end of the air inlet pipe is fixedly provided with an air inlet valve, the other end ofthe air inlet pipe is fixedly provided with a pressure meter, the middle part of the air inlet pipe is provided with an air outlet, and the bottom end of the ventilating disc is fixedly provided witha cavity. According to the static pressure testing device for the integrated packaging mechanical seal, the ventilating disc, the cavity and the integrated packaging mechanical seal are compressed through extending the piston rod of the oil cylinder so as to quickly form a sealed cavity, the air pressured is charged for testing, the pressure of the hydraulic oil cylinder is provided by a hydraulic station, and the pressure output is stable, so that manual bolt locking is avoided, and the pressure testing efficiency if improved so as to meet the requirement of batch production of the integrated packaging mechanical seal.

The invention relates to the technical field of valve detection, in particular to a valve pressure testing device. The valve pressure testing device comprises a first supporting frame, a second supporting frame, a jack, an upper blind plate, a lower blind plate, a base, a pressure testing main pipe, a pressure testing branch pipe, a first connecting piece, a combined pipeline and a pressure testing fluid supply device. The base is connected with the bottom of the first supporting frame, the lower blind plate is connected with the base, the jack is connected between the top of the first supporting frame and the upper blind plate, and the upper blind plate and the lower blind plate are oppositely arranged at intervals. The pressure test main pipe is connected with the second supporting frame, the number of the pressure test branch pipes is multiple, one end of each pressure test branch pipe is communicated with the pressure test main pipe, and the other end of each pressure test branch pipe is provided with a first connecting piece; the lower blind plate is provided with a fluid inlet, one end of the pressure test main pipe is communicated with the fluid supply device, the other end of the pressure test main pipe is communicated with one end of the combined pipeline, and the other end of the combined pipeline is communicated with the fluid inlet.

The invention discloses a flangeless thin-walled workpiece pressure test tool relating to the technical field of mechanical equipment. The flangeless thin-walled workpiece pressure test tool comprisesa bolt II, a pressure test plate III, a pressure test plate I, a bolt I, a pressure test support, O-shaped sealing rings, a pressure test plate II and sealing grooves, wherein parts are fixed on thepressure test plate III by virtue of bolts II; the sealing grooves are formed in the pressure test plate I and the pressure test plate II; the O-shaped sealing rings are arranged in the sealing grooves; one ends of the parts are arranged in the sealing groove in the pressure test plate II; the other ends of the parts are arranged in the sealing groove of the pressure test plate I; the pressure test plate I is connected with the pressure test support by virtue of the bolt I; and the pressure test support and a section of the pressure test plate II are in contact. The pressure test tool assembling time is saved, the pressure test efficiency is improved, the deformation of the parts in the pressure test process can be avoided, and the practicality is high.