The utility model discloses a dust detection device, which comprises a frame, frame bottom surface symmetry is provided with a plurality of groups supporting leg, it is provided with the dust concentration sensor just to be located frame bottom surface matching between a plurality of groups supporting leg, the frame top surface is provided with the outer container, outer container bottom lateral wall is got a material mouthful interior matching and is provided with the sealing plug, sealing plug one side just is located the inside bottom surface of outer container and is provided with the dustcollection box, dust collection box one side just is located the inside bottom surface of outer container and is provided with the controller, the dust collection box opposite side just is located the inside bottom surface of outer container and is provided with first air exhauster, the first air outlet end of the fan of taking out advances the dirt end through first conveying pipeline and dust collection box and is connected, first air exhauster one side just is located the inside bottom surface of outer container and is provided with the power The beneficial effects of the utility model are that: this detection device structural design is simple equitable, can realize detecting the composition of dust, can effectively detect out booking area's dust concentration, has increased substantially the work efficiency who detects the department, is fit for promoting

Dust detection device

Loading device for entirely applying simulative load to ocean work-over rig

The invention relates to a self-elevating drilling platform pitching pile simulation test loading device and method. The self-elevating drilling platform pitching pile simulation test loading device comprises a loading steel frame used for being fixedly connected with the upper part of pile legs of a test simulation self-elevating platform and a plurality of ballast water tanks of the same volume. The multiple ballast water tanks are fixedly and hierarchically arranged on the loading steel frame from top to bottom in the height direction of the loading steel frame. The ballast water tanks on the same layer are symmetrically distributed on the two sides of the same elevation position of the loading steel frame. The ballast water tanks of the adjacent upper and lower layers are perpendicularly arranged at two different elevation positions of the loading steel frame in a staggered mode. According to the self-elevating drilling platform pitching pile simulation test loading device, the water tanks are evenly installed at the different positions of the pile legs used for a stimulation test, seawater or other fluid mediums of high density are pumped into the water tanks through a water pump according to different pumping speeds, dressing-capping-type splitting loading is conducted, a self-elevating drilling platform can be stimulated to complete preballasting operation be relying on ballast tank water taking-in well, and the high similarity is achieved.

Self-elevating drilling platform pitching pile simulation test loading device and method

The invention discloses a load loading device of an on-site stress testing rotary table of an in-servicepetroleum drilling machine and drilling and repairing machine base and belongs to the field of petroleum drilling equipment. The device comprises a base supporting and fixing device, connection steel wire ropes, a load loading device and a rotary table connection plate, wherein the rotary table connection plate is fixedly connected with a rotary table; the load loading device comprises structures such as a power part, a switching joint, a connection structure and a steel wire rope connector and the like; the load loading device is fixedly connected with the rotary table connection plate via the connection structure; the upper ends of the connection steel wire ropes are connected with the steel wire rope connector; the lower parts of the connection steel wire ropes are connected with two ends of the base supporting and fixing device respectively; two ends of the base supporting and fixing device are fixedly connected with a left support and a right support of the in-servicepetroleum drilling machine and drilling and repairing machine base respectively. Through the load loading device of the on-site stress testing rotary table of the in-servicepetroleum drilling machine and drilling and repairing machine base, the load test is carried out on the of the rotary table of the in-servicepetroleum drilling machine and drilling and repairing machine base on the site under the load condition; the stress distribution conditions of main stressed parts of the base under the test load can be obtained; the accurate test data is supplied to detection and evaluation of the in-servicepetroleum drilling machine and drilling and repairing machine base.

Load loading device of on-site stress testing rotary table of in-servicepetroleum drilling machine and drilling and repairing machine base

The invention discloses a medium through type travelling block design verification load test system. The system includes a bearing seat. The bearing seat is fixedly connected to one end of a bearing column. The other end of the bearing column passes through the middle part of a to-be-tested travelling block, and is connected to a protruding head on an extension bar on one end of a hydraulic cylinder piston rod cavity through a clamp and bolts. The two sidewalls of the piston cavity of a hydraulic cylinder are placed inside the sidewall of the frame of a bearing frame. A cushion plate is arranged between the hydraulic cylinder piston cavity and the frame of the bearing frame. A protruding rod is fixedly connected to the end face of the piston cavity end of the hydraulic cylinder. The protruding rod is embedded into a groove arranged in the middle of one end face of the frame of the bearing frame. The other end of the frame of the bearing frame is open. The bearing frame is fixedly connected to a bracket. The invention also discloses a test method adopting the design verification load test system. The test system solves the problem that a conventional load test system is narrow in adaptation range and complex in operation and is limited by place. Through the connection of the bearing members and main bearing parts of the to-be-tested travelling block, a closed force transmissionstructure is formed. The verification of design verification load is realized by adjusting oil supply pressure of the hydraulic cylinder.

Medium through type travelling block design verification load test system and test method

The utility model discloses a loading device used for entirely applying a simulated load to an ocean workover rig. The loading device includes a front beam and a rear beam which are arranged in symmetry on the two sides of an X axis, and the ends of the front beam and the rear beam are fixedly connected with supporting legs on a lower pedestal of a workover rig. A left vertical beam and a right vertical beam which are arranged in symmetry on the two sides of a Y axis are arranged between the front beam and the rear beam. The ends of the front beam and the rear beam are provided with loading plates. The loading plates are provided with connecting through holes. The front beam, the rear beam, the left vertical beam, and the right vertical beam are provided with leveling supporting hydraulic cylinders. In an on-site offshore platform environment, when the ocean workover rig carries out the safety evaluation test work, the loading device can entirely apply the simulated load to the ocean workover rig so as to guarantee the comprehensiveness and the validity of the test work.

Loading device used for entirely applying simulated load to ocean workover rig

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Loading device for entirely applying simulative load to ocean work-over rig

Loading device used for entirely applying simulated load to ocean workover rig