A high pressure tube is a tube that can withstand pressure. It is used to transport the liquid. There are many kinds of pipes, such as steel tubes, copper tubes, stainless steel tubes, and so on. High quality carbon structural steel and alloy structural steel high pressure pipe are mainly used for manufacturing steam boilers and pipes with high pressure and above pressure.
High pressure Steel Pipe and stainless steel seamless steel pipe, these boiler tubes work under high temperature and high pressure, and the pipe will be oxidized and corroded under the action of high temperature smoke and steam. Therefore, the steel pipe has high lasting strength, high oxidation resistance and good organization stability.
Steel number is: high quality carbon steel steel steel number 20G, 20MnG, 25MnG; alloy structural steel steel 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, etc.; rust resistant steel commonly used 1Cr18Ni9, 1Cr18Ni11Nb high pressure pipe in addition to chemical composition and mechanical energy, to do water pressure test, to make expansion. Oral and flattening tests. The steel pipe is delivered in heat treatment state.
High pressure metal tubes have high lasting strength, high oxidation resistance and corrosion resistance, good tissue stability and sufficient strength, hardness, wear resistance and impact toughness. High Pressure Tubing,High Pressure Hose,High Pressure Rotary Hose,Hydraulic Hose High Pressure HeBei GuangHao Pipe Fittings Co .,LTD (Cangzhou Sailing Steel Pipe Co., Ltd) , https://www.guanghaofitting.com
The high pressure pipe occupies an important position in the development of the steering pipe of the hydraulic power steering system.
In addition, the microstructure, grain size and decarburization layer of finished steel pipe also have certain requirements. Seamless pipes for geological drilling and oil drilling and control are used for drilling underground wells in order to ascertain the structure of underground strata, underground water, oil, natural gas and mineral resources.
The exploitation of oil and natural gas can not be separated from the drilling, and the geological drilling and controlling of the seamless steel pipe used for oil drilling is the main equipment of the drilling, which mainly includes core outer tube, core tube, casing, drill rod and so on.
Because the drilling pipe has to work deep into the depth of several kilometers, the working conditions are very complex, the drill rod is subjected to tensile, pressure, bending, torsional and unbalanced impact loads, and it is also worn by mud and rock. Therefore, the pipe must have enough strength, hardness, wear resistance and impact toughness, steel pipe. The use of steel "DZ" (Geological Chinese Pinyin head) is represented by a number of steel yield points. The commonly used steel numbers are DZ45 45MnB, 50Mn; DZ50 40Mn2, 40Mn2Si; DZ55 40Mn2Mo, 40MnVB; DZ60 40MnMoB.
The steel pipes are all delivered in heat treatment.
Petroleum cracking pipe: seamless tube for furnace tubes, heat exchanger tubes and pipes used in petroleum refineries. Commonly used high quality carbon steel (10, 20), alloy steel (12CrMo, 15CrMo), heat resistant steel (12Cr2Mo, 15Cr5Mo), stainless steel (1Cr18Ni9, 1Cr18Ni9Ti) manufacturing. In addition to the chemical composition and various mechanical properties, the steel pipe should also ensure water pressure, flattening, flaring and other tests, as well as surface quality and non-destructive testing. The steel pipe is delivered under heat treatment.
Stainless steel pipe: hot rolled stainless steel tubes of various stainless steel, cold rolled stainless steel pipes, widely used in oil, chemical equipment pipes and all kinds of stainless steel structures for various purposes. In addition to ensuring chemical composition and mechanical properties, all steel pipes used to withstand fluid pressure should be qualified for water pressure testing. All kinds of special steel pipe should be guaranteed according to the stipulations.
High pressure rubber tube has non-toxic, environmental, physiological inertia, UV resistance, ozone resistance, high temperature resistance (-80 to 300 degrees), high transparency, strong resilience, compression resistant permanent non deformation, oil resistance, stamping, acid and alkali resistance, abrasion resistance, refractory, voltage resistance, electrical conductivity and so on.
Vacuum booster pump working principle and maintenance
Vacuum booster pump is mainly used for drawing light vacuum booster brake system can also be used for other transport vehicles and construction machinery. The use of vacuum assisted braking system can improve brake reliability and reduce driver fatigue, help reduce the incidence of traffic accidents and improve vehicle safety. Therefore, in the promotion and use of the process, we must understand and master its performance, principles. The only way to effectively ensure the pump braking performance, extend the service life, play a safety role. 1 vacuum booster pump works Vacuum booster pump mainly by the pump body, rotor, slider, pump cover, gears, seals and other components. When the pump is working, the eccentric rotor with four sliders rotates in the counterclockwise direction, the sliders slide on the inner wall of the pump body under the action of centrifugal force of itself, the suction working chamber expands constantly, Tube open the check valve (pump built-in check valve, the system from the packing effect) into the suction studio. When the slider to a certain position, inhalation is completed. At this point, the inhaled gas is isolated, the rotor continues to rotate, the isolated gas is gradually compressed - the pressure rise. When the studio goes to communicate with the vent, the gas is vented from the vent. During pump operation, the slider always divides the pump chamber into four working chambers, with one revolution per rotor and four intake and exhaust processes. 2 Use and Maintenance Vacuum booster pump is a high precision and sensitive working vacuum pump. The following rules must be strictly observed: (1) The vacuum booster pump uses oil to lubricate the friction surface to seal the gaps (rotor, slider, Pump body, the gap formed by the pump cover), so you must choose the right lubricant and the appropriate lubrication. (2) use, should always check the operation and lubrication is normal, with or without abnormal noise, in order to promptly find (model forum) and troubleshooting. (3) during use, should always check whether the leakage pump. (4) If you do not use the vacuum booster pump for a long time, do not immediately work full load when reused. 3 common faults and troubleshooting (1) the pump to extract the maximum vacuum is low, the extraction time is extended Fault causes: inadequate viscosity of lubricating oil; suction pipe leakage: parts wear; gap increased leakage. Fault diagnosis and troubleshooting: Check the viscosity of lubricating oil, if not qualified, replace the appropriate viscosity of the oil; check whether the pipeline leaks, if leaks, you need to replace the leaky parts: Check the parts for wear and tear, if worn , Need to be repaired or replaced with new parts; check the lubricating oil pressure, and meet the requirements. (2) Insufficient pump pressure, gas leakage Cause: Gas seal leak diagnosis and troubleshooting: Check the seal is worn and inelastic, if worn, need to be replaced with a new seal. (3) Air leakage at each interface Cause: The connector is loose or the seal is damaged. Fault diagnosis and troubleshooting: Check whether the connector is loose or not. If it is loose, seal the connector and tighten the connector. If the seal is damaged, replace the new one. 4 Disassembly Pump Precautions Vacuum pump components within the high precision and assembly accuracy, in general, users do not disassemble. Should be sent to the manufacturer or repair center for inspection and repair, if the need to disassemble, you should pay attention to the following: (1) vacuum booster pump rotor and gear are interference fit, can not be removed. (2) The parts are not allowed bump and scratches, the parts clean with kerosene, stored in a clean box. (3) should pay attention to the sliding block slider arc outward, may not be installed. (4) parts must be clean assembly. (5) After the pump is assembled, the rotor should rotate flexible.