The invention discloses a prefabricated direct-buried thermal insulating pipe foaming plugging device and a usage method, and belongs to the technical field of prefabricated direct-buried thermal insulating pipes. The prefabricated direct-buried thermal insulating pipe foaming plugging device and the usage method are used for solving the problem existing in prefabricated direct-buried thermal insulating pipe foaming. According to the technical scheme, the two ends of a thermal insulating layer are each provided with a plugging plate, each plugging plate is provided with a pressure regulator, and flexible sealing rings are arranged between the plugging plates and an outer protecting pipe and between the plugging plates and the working steel pipe. The usage method comprises the steps that the plugging plates are used for sealing the two ends of an annular cavity of the thermal insulating layer, the pressure regulators are used for regulating the pressure in the annular cavity of the thermal insulating layer, and then pouring and foaming are performed to enable polyurethane to be fully foamed in the whole cavity. The prefabricated direct-buried thermal insulating pipe foaming plugging device is simple in sructure, convenient to use, good in sealing effect, capable of regulating the pressure, and not only can prevent the occurrence of the structural defects of polyurethane foaming, but also can avoid material spilling and reduce production cost. The prefabricated direct-buried thermal insulating pipe foaming plugging device and the usage method solve the problems which are not solved for a long time in prefabricated direct-buried thermal insulating pipe foaming technology, ensure the product quality of the prefabricated direct-buried thermal insulating pipe, and have remarkable economic benefits.

Prefabricated direct-buried thermal insulating pipe foaming plugging device and usage method

The invention discloses a shop heavy object carrying device which comprises H-steel, a pulley assembly, an inner cylindrical rod, an outer cylindrical rod, an upper positioning rod, a lower positioning rod, a lateral mounting assembly, wherein all the components are connected through bolts or positioned by hanging hooks and hanging lugs in a hanging manner, so that the quick assembling or disassembling is extremely easy. According to the invention, the device solves the problem that a conventional crane or a fork-lift cannot be used for carrying heavy objects due to the limitation of the storey height and the barriers of door hurdles or steps of shops, can be used for hoisting heavy objects in shops to cross the door hurdles or steps to be conveyed and carried out of shops by only one person through the adoption of the mechanical manner, and can be used for hoisting the heavy objects to be loaded on a truck; likewise, heavy objects on a vehicle can be unloaded by adopting the mechanical manner, and can be hoisted to cross the door hurdles or steps to be conveyed and carried into shops; the device is simple in structure and convenient for manufacturing, can be detached and disassembled to facilitate the carrying and storage, makes up the deficiencies of hoisting equipment functions, belongs to practical mechanical carrying devices convenient to popularize, and is particularly applicable to shops, storage houses or other places with narrow space.

Portable shop heavy object carrying device

The invention provides leaking stoppage equipment used for pipe leakage. The leaking stoppage equipment is characterized by comprising a clamping device, a lifting device, a rotating device and a movement device; the clamping device comprises a hoop used for clamping a leakage part of a pipe so as to achieve pipe leaking stoppage, an electric push rod used for pushing the hoop to get close to or be away from the pipe and an end plate for fixing the electric push rod; the lifting device comprises an ejection plate arranged below the end plate, a connecting rod lifting mechanism connected to the position below the ejection plate and used for lifting the ejection plate and a bearing plate connected to the position below the connecting rod lifting mechanism; the rotating device comprises a rotary disc arranged below the bearing plate, a cross arm arranged below the rotary disc. A rotating shaft with the upper end penetrating the middle of the cross arm, and a rotating motor arranged below the cross arm and with the output end connected with the lower end of the rotating shaft, and the rotating shaft is fixedly connected with the rotary disc; and the movement device comprises a base plate arranged on the ground, a guide rail arranged on the base plate, a sliding block installed in the guide rail in a sliding manner and a transmission mechanism used for pushing the sliding block to move on the guide rail.

Leaking stoppage equipment used for pipe leakage

The invention relates to a buried natural gas pipeline earth-surface overflowing drainage cover and an application method, and belongs to the technical field of oil-gas storage and transmission safe operation A middle air entraining plate is composed by a V-shaped hopper cover, a sleigh-type middle main plate, rotating shaft sleeves, preassembled articulated shafts and assistant tongs; the V-shaped hopper cover is provided with a hollow hopper cavity, a wind-distributing air entraining pipe is arranged at the upper portion of the V-shaped hopper cover in a sleeved mode, and the lower portion of the V-shaped hopper cover is integrally welded with the sleigh-type middle main plate, bent arc-shaped warped parts are arranged at the two ends of the sleigh-type middle main plate respectively, and the middle hole of the sleigh-type middle main plate is matched with the lower end of the V-shaped hopper cover; the rotating shaft sleeves and the preassembled articulated shafts are assembled into 6 sets and are arranged at the two sides of the middle air entraining plate uniformly; the assistant tongs are welded to the middles of the two ends of the middle air entraining plate According to the buried natural gas pipeline earth-surface overflowing drainage cover and the application method, when the buried natural gas pipeline leaks, harms caused by the overflowing gas generated for the reason that shutdown and depressurization of the pipeline cannot be conducted timely to the surrounding, entering of equipment by rescuers, excavation work and the like are solved through covering a drainage cover device on the earth-surface overflowing area

Buried natural gas pipeline earth-surface overflowing drainage cover and application method

The invention provides a well repair platform which comprises a platform body and a base. The platform body is in the shape of a rectangular plate and is arranged on the base, two ends of the platform body respectively convexly extend away from the center of the platform body to form arc-shaped ends, and the circle centers of the edges of the arc-shaped ends coincide with the center of the platform body. The well repair platform has the advantages that the arc-shaped ends are arranged at the two ends of the platform body, the circle centers of the arc-shaped ends coincides with the center of the platform body, accordingly, the axes of ramps and anchor ways and the central axis of the platform body can be assuredly positioned in the same vertical plane when the ramps and the anchor ways are about to be constructed no matter where the ramps and the anchor ways are constructed at the arc-shaped ends, the ramps and the anchor ways can move along the arc-shaped ends until the ramps and the anchor ways are free of constraints of other surrounding structures if the ramps and the anchor ways cannot be straightly constructed due to place constraints of a certain position of the corresponding arc-shaped end, the ramps, the anchor ways and the platform body can be assuredly straightly constructed, and construction requirements can be met.

Well repair platform

The utility model relates to a portable small-sized multipurpose portal frame, which structurally comprises vertical rod legs, vertical rods, pin holes, a hanging ring, a pulley gear, a beam and extended insertion rods The portable small-sized multipurpose portal frame is characterized in that one vertical rod leg is mounted at the bottom of each vertical rod, one extended insertion rod is inserted into each vertical rod and fixed by one pin hole, the beam is mounted on the extended insertion rods, the pulley gear is arranged in the middle of the beam, and the hanging ring is hung in the middle of the beam through the pulley gear The portable small-sized multipurpose portal frame has the advantages that all connecting components of the portable small-sized multipurpose portal frame are detachable, so that the portable small-sized multipurpose portal frame can be detached and mounted rapidly and is small in floor area, convenient in use, simple in structure, safe, reliable and applicable to installation and transport of equipment with limited space or for outdoor operation, and the width and the height of the portable small-sized multipurpose portal frame can be adjusted in a classified manner

Portable small-sized multipurpose portal frame

The utility model relates to a magnetic force combined type pipeline leaking stopper under pressure. The structure of the magnetic force combined type pipeline leaking stopper under pressure comprises a leaking point, a plugging cap, a pressure bearing, a screw rod, a drainage port, a portal frame, a magnet and a pipeline. The magnetic force combined type pipeline leaking stopper under pressure is characterized in that the portal frame is fixed on the magnet by a pin; the magnet is fixed on the pipeline; the screw rod is fixed on the plugging cap through the pressure bearing; the pressure bearing is fixed on the leaking point through the plugging cap; and the drainage port is arranged at the right side on the plugging cap. The magnetic force combined type pipeline leaking stopper under pressure has the beneficial effects that the pipeline is excavated locally in the magnetic force combined type pipeline leaking stopper under pressure so that workload is saved and rush repair efficiency is improved; the magnetic force combined type pipeline leaking stopper under pressure can be applied for the leaking point on a weld joint of the pipeline with a large pipe diameter, is safe and reliable and has a simple structure.

Magnetic force combined type pipeline leaking stopper under pressure

The utility model relates to a hydraulic pipeline leaking stopping device which comprises a box body, a hydraulic arm II, a hydraulic arm I, a leaking stopping piece, a pipeline, tightening steel rings, a hydraulic cylinder and hydraulic pipes. The leaking stopping device is characterized in that the hydraulic cylinder is fixed on the box body through the two hydraulic pipes; the box body is fixed on the pipeline through the tightening steel rings; and the leaking stopping piece is fixed on the hydraulic arm I. The utility model has the benefits as follows: repair personnel are far from a leakage point, so that the repair risk is reduced; the hydraulic cylinder can be operated for repair at a place 10 m away; through the adoption of hydraulic pressure serving as power, the leaking stopping piece can be tightly fixed at the leakage point; the mode of pressure release is not adopted, so that manpower, time, and oil and gas resources are all saved; and the leaking stopping device is safe and reliable and has simple structure.

Hydraulic pipeline leaking stopping device

The utility model relates to a gas-collecting bag for natural gas emergency repair. The gas-collecting bag for the natural gas emergency repair comprises a gas-collecting bag, fixing wedges, a connecting joint, a drain tube and a drain port. The gas-collecting bag is characterized in that the gas-collecting bag is rectangular; the periphery of the lower end of the gas-collecting bag is provided with fixing wedges; the gas-collecting bag is fixed on the ground by the fixing wedges; the side wall of the gas-collecting bag is also provided with the drain port; and the drain port is connected with the drain tube by the connecting joint. The gas-collecting bag has the beneficial effect that the gas-collecting bag can be folded to store, is small in weight, simple to operate, safe and reliable, quick and convenient and can quickly control leaked natural gas so as to effectively avoid major accidents; and the gas-collecting bag has wide application range and can be widely applied in underground pipelines and outdoor technical pipelines.

Zheng Chang

Papers

Portable small-sized multipurpose portal frame

Magnetic force combined type pipeline leaking stopper under pressure

Hydraulic pipeline leaking stopping device

Gas-collecting bag for natural gas emergency repair