30results about How to "Avoid Corrosion Failure" patented technology

The invention provides an early warning and protective method for collision resistance of bridge piers. The method includes that step one, an electronic induction device detects ships within a certain sea area range and amplifies detected physical signals into electrical impulse signals, when the ships sail into a monitored and early warned area, a control system controls an alarm system to raise the alarm, and the ships can adjust sailing directions; step two, when the ships move on and sail into danger areas, the control system controls output of high-low levels to achieve early warning and/or protective functions according to the sizes of the electrical impulse signals; and step three, when the ships leave the monitored sea area after collision and the electronic induction device cannot detect signals, the control system controls reset of an early warning and protective system so as to achieve recycling. According to the early warning and protective method, early warning and protection are combined, ship-bridge collision accidents can be avoided effectively by the aid of intelligent early warning, and the protective system does not occupy navigation channels and not prone to corrosion by seawater and capable of being recycled under the normal state.

The invention discloses an intelligent drilling rod for petroleum and natural gas extraction and a manufacture method thereof. Both ends of the drilling rod are connected with an inner threaded joint and an outer threaded joint and are welded for carrying out heat treatment, grooves are formed on the outer wall of an inner lining pipe of a pipe body in a pulling way, high-temperature resistance metal adhesives are coated on the outer wall of the inner lining pipe of the pipe body, cables are laid in the grooves, the inner lining pipe of the pipe body and the cables are pressed on the inner wall of the drilling rod body by adopting a metal pipe expansion compounding method, an inner threaded joint lining sleeve and an outer threaded joint inner lining positioning sleeve are respectively in interference arrangement inside the inner threaded joint and the outer threaded joint after being coated with the high-temperature resistance metal adhesives on the outer contact surfaces, a conductive ring positioning protective sleeve and a conductive ring are respectively arranged in an inner cavity of the inner threaded joint and at the lengthening section of the outer threaded joint, both ends of the cables are connected with the conductive ring, and a high-temperature sealing ring is arranged on the end surface of the outer threaded joint. The drilling rod realizes the ground and underground electric power and the information transmission, realizes the logging while drilling and the closed loop control, belongs to a revolution on the well drilling history, and simultaneously improves the corrosion resistance capability of the drilling rod. The manufacture method is simple, can be easily implemented, has high work efficiency, and meets the requirements of the intelligent drilling rod.

The invention discloses a heat pipe air preheater which resolves the problems that the exhaust gas temperature of a heat pipe air preheater of a tube heating furnace in the existing petrochemical engineering and coal chemical industries cannot be regulated, and noncondensable gas produced in use of a heat pipe cannot be effectively exhausted. The heat pipe air preheater comprises a smoke pipe box, an air pipe box, assembled heat pipe sets, a condenser, a medium distributor and a control regulating valve system, wherein the assembled heat pipe sets are arranged in the smoke pipe box and the air pipe box, the condenser is arranged in the air pipe box, the control regulating valve system comprises a blowoff valve, a steam regulating valve, thermoelectric couples and a medium regulating valve, the blowoff valve is communicated with upper portions of the assembled heat pipe sets through a blowoff pipe, the steam regulating valve is communicated with the upper portion of the condenser through a blowoff pipe, the medium regulating valve is communicated with lower portions of the assembled heat pipe sets and the lower portion of the condenser, the steam regulating valve and the medium regulating valve are connected with the thermoelectric couples respectively, and the thermoelectric couples are arranged in the smoke pipe box.

Disclosed is a cable clamp. Situations that failure caused by corrosion of an iron cable clamp and damage due to abrasion of leads are prone to occurrence in outdoor environment; the outdoor leads are mostly erected at high altitude, so that difficulty in operation is high, construction environment is complex, and in many cases, materials are needed to be carried to construction sites by workers. The workers have limited weight, so that operation radius is greatly limited. The cable clamp has the advantages of resistance to corrosion, rapidness in mounting and capability of avoiding abrasion damage of cables. A linkage, a power storage unit and spring shock absorption are organically combined, energy generating from shaking of the leads can be effectively absorbed, range of the leads in shaking is attenuated, and a lead protection function is achieved; the cable clamp is light, convenient in carry, rapid in mounting and capable of effectively increasing maintenance speed and enlarging the operation radius of the workers.

The invention relates to a temperature difference power generation device with a laminated structure and a preparation method of the temperature difference power generation device, and the temperaturedifference power generation device structurally comprises a thermoelectric material layer, an insulating bonding layer, a top electrode, a bottom electrode, a top insulating layer, a bottom insulating layer and an insulating and heat-insulating packaging layer which are arranged in a laminated manner, the temperature difference power generation device has a long thermoelectric arm length, is beneficial to increasing the temperature difference, and can be used for a thermoelectric power generation environment with natural air heat dissipation. No gap exists between an N-type thermoelectric material and a P-type thermoelectric material, the proportion of the thermoelectric materials in unit area is large, the structural internal resistance and thermal resistance of the thermoelectric powergeneration module are effectively reduced, and the power generation efficiency is improved; the problems of moisture corrosion and the like can be eliminated by adopting simple edge packaging; the conductive connection between the N-type thermoelectric material and the P-type thermoelectric material adopts a simple spraying or sputtering process, and the insulating bonding layer connected with theelectrode is relatively thin, so that the thermal resistance of a heat transfer surface can be greatly reduced. The heat transfer surface of the temperature difference power generation device can beprocessed into any shape and is effectively attached to a curved surface heat source, and the maximum temperature difference power generation efficiency is obtained.

The invention discloses a D-shaped bolt U-shaped pipe high-pressure heat exchanger. The D-shaped bolt U-shaped pipe high-pressure heat exchanger is mainly used for solving the problem existing in an existing bolt flange type heat exchanger, an existing omega sealing ring heat exchanger, an existing screw locking ring heat exchanger and an existing diaphragm seal heat exchanger. A flat deck roof (3) is arranged at the end portion of a pipe chamber cylinder (13), and the pipe chamber cylinder (13) is connected with the flat deck roof (3) through a round of eccentrically and uniformly distributed D-shaped bolts (7) to bear axial force. The D-shaped bolts (7) can be fixed into about 3/4 threaded holes of the flat deck roof or the end portion of the pipe chamber cylinder, and an outer sealing gasket (12) can select a winding gasket or a wave tooth composite gasket or a stainless steel C-shaped sealing ring. Inner ring compression bolts (6) and outer ring compression bolts (8) are arranged on the flat deck roof, internal bolts (29) are arranged in grooves of the pipe chamber cylinder, both the inner ring compression bolts and the internal bolts can provide sealing force for an inner sealing gasket (19), and the outer ring compression bolts provide sealing force for the outer sealing gasket. The D-shaped bolt U-shaped pipe high-pressure heat exchanger is mainly used for the heat exchange process of petroleum refining hydro-treatment technology.

The invention relates to a rod end knuckle bearing and rod end knuckle bearing assembling equipment and method. The rod end knuckle bearing is characterized in that an anti-corrosion layer is arrangedon the outer surface of a rod end body; the outer ring of a bearing assembly is inserted into an eye hole of the rod end body in a matched manner; hole edges are arranged at the two ends of the eye hole respectively and located at the axial outer sides of the corresponding ends of the outer ring respectively; and the end face of each hole edge is extruded to form an annular extruded inclined endface, the extruded inclined end faces gradually incline towards the outer ring in the radial direction of the eye hole, so that each hole edge extends inwards in the radial direction of the eye hole to deform to form a closing-in hole edge, and the two closing-in hole edges extrude the outer ring to lock and fix the outer ring in the eye hole. The end faces of the hole edges at the two ends of theeye hole are extruded to deform, so that the hole edges form the closing-in hole edges, and the outer ring of the bearing assembly is locked and fixed. In the assembling process, a V-shaped cutting notch does not need to be formed in the rod end body, damage to the anti-corrosion layer on the surface of the rod end body can be effectively reduced, and the service life of the rod end knuckle bearing is guaranteed.

The invention discloses a photovoltaic tile, which comprises a tile housing and a photovoltaic cell panel, wherein the tile housing comprises two arc-shaped plates which are symmetrically arranged, wherein the two arc-shaped plates are connected through a horizontal connection plate; the width of the horizontal connection plate is 1/3 of width of the projection of each arc-shaped plate; each arc-shaped plate can just be clamped on a beam of a roof; and the photovoltaic cell panel is arranged in the arc-shaped plates. The tile housing is arranged to be the arc-shaped plates, and water flows to the horizontal connection plate along the arc-shaped surface, and then is discharged downwards from the horizontal connection plate, so that the water is not easily accumulated on the photovoltaic tile, a corrosion failure of the photovoltaic cell panel cased by moisture is avoided, and meanwhile, the coordination mode of the arc-shaped plates and the beam is beneficial to installation and the installation efficiency can be improved by connecting the two arc-shaped plates together.

The invention belongs to the technical field of A61L9/00, and in particular relates to a device for disinfecting, sterilizing or deodorizing air. Disclosed is a food processing workshop deodorizing device installed in a food processing workshop, the food processing workshop deodorizing device comprises a cooling system, a ventilation system and a deodorizing system, the cooling system comprises acold air generating device disposed in the food processing workshop and a cold air pipe connected to the cold air generating device, the outlet end of the cold air pipe is leading to the food processing workshop; the ventilation system comprises a negative pressure machine and an exhaust pipe connected to the negative pressure machine, the end of the exhaust pipe is leading to the food processingworkshop; the deodorizing system is installed on the exhaust pipe, and the exhaust pipe sleeves outside the cold air pipe, and exhaust gaps are left behind the exhaust pipe and the cold air pipe. Lowtemperature generated by the cold air pipe is used to perform preliminary deodorization treatment on exhaust gas, resources are reused reasonably, and the device is applicable to any processing workshops with cooling demands, and has wide application ranges and energy conservation.

The invention relates to a package module of an embedded package and a manufacturing method of the package. The package comprises a first semiconductor chip, a dielectric layer, a first circuit layer, a second circuit layer and a first packaging material. The package module mainly comprises the package, a second semiconductor chip and a second packaging material. Since the package body is tested and confirmed to have good functions and then can be used in the package module, a problem that the package module cannot be fully made use of due to flaws of the package is prevented.

The invention discloses a composite pipe threaded joint. The composite pipe threaded joint comprises a pipe body joint with an external thread and a coupling joint with an internal thread, and the pipe body joint comprises a pipe body and a lining fixed to the inner wall of the pipe body; the pipe body joint is provided with a first threaded section, a first transition section, a first outer sealing surface section, a first circular bead and a first inner sealing surface section which are sequentially arranged; the coupling joint is provided with a second threaded section, a second transitionsection, a second outer sealing surface section, a second circular bead and a second inner sealing surface section which are sequentially arranged and correspondingly correspond to the first threadedsection, the first transition section, the first outer sealing surface section, the first outer sealing surface section, the first circular bead and the first inner sealing surface section; and the second outer sealing surface section, the second circular bead and the second inner sealing surface section define a groove capable of accommodating the end part of the pipe body joint. The composite pipe threaded joint has the high sealing performance.

The invention relates to a pipe, in particular to a continuous fiber reinforced non-adhesive compound flexible pipe. The continuous fiber reinforced non-adhesive compound flexible pipe is characterized by comprising an inner frame layer, a liner layer, a non-adhesive reinforcing layer, an inner protective layer, an outer frame layer, an outer drawn layer, an anti-wear layer and an outer protective layer from inside to outside; the inner frame layer for ensuring uniform bending of the pipe and supporting radial load of the pipe is composed of at least four fiber layers; each fiber layer is made with wrapped straps of thermoplastic/thermosetting resin and fiber; the fiber wrapped straps in odd layers are wrapped at the angle of 50-90 degrees, and the width of the wrapped straps ranges from 20mm to 80mm. Compared with the prior art, the continuous fiber reinforced non-adhesive compound flexible pipe has the significant advantages that the pipe is resistant to corrosion, the service life is prolonged effectively and material cost is saved.