30results about How to "Suitable for a wide range of pressure" patented technology

The invention provides an excellent-quality steel bar controlled rolling and cooling method and belongs to the technical field of rolled steel production controlled rolling and cooling. The specific technological process comprises the step that controlled rolling and cooling of bars with the specification of the diameter being 12-70 mm adopts short cooling, I section short temperature resetting, short cooling, II section long temperature resetting, short cooling, interrupt cooling and temperature resetting circular control technology. Short cooling adopts a water cooling manner, I section controlled cooling, II section controlled cooling and III section controlled cooling adopt the short cooling manner, and the length of a cooler ranges from 500 mm to 1000 mm. Pressure of cooling water ranges from 0.5 MPa to 1.5 MPa, temperature resetting adopts an air cooling manner, the I section short temperature resetting length is 1000-1800 mm, and the II section long temperature resetting length is 2400-3600 mm. According to the method, on the basis of meeting mechanical performance of bars, the problem that in the traditional controlled rolling and cooling technology, a deeper quenched layer is generated on the surface layer is solved, generation of the quenched martensitic structure of the surface layer is effectively avoided, control over organization types is achieved, meanwhile, better uniformity of the surface layer and heart temperature is ensured, and the surface layer and heart temperature difference is smaller than or equal to 50 DEG C.

The invention belongs to the field of oil gas and oil well development, discloses a system for sampling and monitoring components of shaft fluid of a gas field and particularly relates to a system for sampling and monitoring components of the shaft fluid of the gas field and a sampling and analysis method thereof, which are designed aiming at environmental characteristics of a H2S / CO2-containing gas field. A sampling process of a sampler of a gas well is safer, an experimental process is more accurate and quicker, and the application pressure range is wider and safer, and an experimental result of researching the change of high-content hydrogen sulfide gas components is more accurate; and a device is safe and reliable. Through the system and the method, the problems that fluid pressure cannot be obtained and fluid deposit in the shaft cannot be predicted because the measurement cannot be performed in the gas field containing high content of H2S / CO2 can be solved and theoretical basis is provided for a gas well capacity design, production parameter optimization and the formulation of technical measures.

The invention belongs to the field of development of oil and gas wells, and relates to a wellhead sampling device, in particular to a wellhead sampler designed for the characteristic of gas field environment containing high content of H2S / CO2, and a sampling system thereof. The sampling device comprises a sampling valve, a sampling bottle and a pressure reducing valve, wherein two ends of the sampling bottle are in threaded connection with the sampling valve; the external connection of the sampling valve is external-thread clamping sleeve type connection; the pressure reducing valve is used for carrying out pressure reduction and sample injection on high-pressure gas in the sampling bottle; the pressure reducing valve comprises an outer conveying sample injection port which is connected with an outer detector; and the outer conveying sample injection port is a clamping sleeve type connection port so as to eliminate dead angles of pipelines. In the invention, the field sampling for analysis is achieved, the result of experimental analysis has good consistency, the device is safe and reliable, and the corrosion resistance to H2S / CO2 is strong. In the gas field sampler disclosed by the invention, the sampling process is safer, the experimental process is more precise and faster, the applicable pressure range is wider, and more safety is achieved.

The invention provides a determination method of a mechanical denudation rate of a carbon / carbon composite material. The determination method comprises the following steps: (1) combining utilizing a fiber ablation typical shape with and flow field parameters to obtain a result of fiber force analysis; (2) combiningutilizing the fiber force analysis result, a fiber strength and fracture criterion by utilizing a fiber force analysis result to obtain critical fracture height of fibers; (3) combining an evolution law of a fiber shape and analyzing the denudation frequency of the fibers by using an evolution law of a fiber shape; (4) realizing the calculation of the volume denudation rate of the single fiber by utilizing the critical fracture height and denudation frequency of the fibers; (5) calculating a denudation factor of the single fiber according to the volume denudation rate of the single fiber; (6) calculating the denudation factor of the material by combining utilizing the denudation factor of the single fiber with the volume fraction of the fibers in the material.

The invention discloses an integrated cut-off type pressure regulator. The integrated cut-off type pressure regulator is characterized in that the main structure of the integrated cut-off type pressure regulator comprises a regulating part, a balance valve core part, a cut-off part and a valve body. The integrated cut-off type pressure regulator provided by the invention has the advantages that the structure is simple, some module structures are divided, the size is compact, the space occupation is small, the online maintenance is convenient, an air inlet caliber of a product is DN50, an air outlet caliber is DN80, and the flow capacity is large; and a balance valve core structure is adopted, the pressure fluctuation is small, the applicable pressure range is wide, a steel ball affiliated cut-off structure is adopted, the sensitivity of cut-off movement is high, the replication property is good, the pressure setting of the cut-off movement is simple, and the range is wide.

The invention discloses a reusable electric explosion valve, which comprises a casing, in which a valve ball for outputting fluid, a transmission mechanism for controlling the rotation of the valve ball, a piston for driving the electric explosion valve to open, and a push piston are fixedly installed in the casing from bottom to top. For the moving igniter, the valve ball is installed in the fluid channel of the casing, the upper end of the valve ball is connected with the transmission mechanism, the upper end of the transmission mechanism is connected with the piston, the upper end of the piston is provided with an igniter, and the igniter is installed on the upper part of the casing. The reusable electric explosion valve of the present invention can reuse the electric explosion valve without destroying the internal structure of the electric explosion valve after the ignition device is detonated, and does not pollute the fluid passing through the electric explosion valve at the same time, and has a simple structure and It is economical and has the characteristics of small size and light weight.

The invention discloses an air chamber pressure relief device of a combined type air conditioner unit system. A pressure relief valve is mounted on a vertical plug board between a positive pressure chamber and a negative pressure chamber and a positive pressure chamber and comprises a bonnet, a valve seat, a pulley, a gravity block and a cable; a guide rod is arranged in the middle of the bonnet, a guide pipe is arranged in the middle of the valve seat, and a pressure relief hole is formed in a position on the periphery of the guide pipe, of the valve seat; the pulley is fixed on a support of the valve seat; the valve seat is mounted in the position of the pressure relief hole of the vertical plug board; the bonnet is located on one side of the negative chamber; the guide rod on the bonnet penetrates into the guide pipe on the valve seat; a pulley assembly mounted on the valve seat and the gravity block are located in the positive pressure chamber; one end of the cable is connected to the tail end of the guide rod of the bonnet, and the other end of the cable bypasses the pulley and is connected to the gravity block; and the gravity block is suspended freely. The device can avoid overpressure of the air chamber of the combined type air conditioner unit system, and is simple in structure, convenient to assemble and adjust and reliable in operation.

The invention relates to a two-way pressure-bearing fluororubber fireproof butterfly valve, which comprise a valve body and a butterfly plate. The valve body is provided with a valve seat; the butterfly plate is provided with a sealing ring which forms a sealing pair with the valve seat, and a pressing plate which clamps and fixes the sealing ring on the butterfly plate from the right side of thesealing ring; the sealing surface of the sealing ring is a front conical surface of which the apex is positioned on the right side; a closed internal gap of a cavity is formed between the sealing ring and the pressing plate; the pressing plate is provided with a pressure guide through hole for communicating the cavity with a space on the right side of the pressing plate; the left side face of thesealing ring is an internal conical surface of which the apex is positioned on the right side and a bus and a central line form an included angle of 90 degrees to beta; and an elastic fireproof ring is arranged in a gap area between the left side face of the sealing ring and the butterfly plate. Through designs of the cavity, the pressure guide through hole and the elastic fireproof ring, the butterfly valve integrates various functions of two-way sealing, fire prevention and fine adjustment, has a simple structure, high manufacturability, low processing difficulty and a wide pressure application range, and is particularly suitable to be used under high pressure.

The invention discloses a testing device and testing method for pressurized column leaching of uranium ore by means of CO2 and O2. The testing device comprises a liquid storage tank and a leaching column. A water inlet pipe connector, an O2 inlet pipe, a CO2 inlet pipe and a first pressure gauge connector are arranged on an upper end plate of the liquid storage tank, wherein the water inlet pipe connector, the O2 inlet pipe, the CO2 inlet pipe and the first pressure gauge connector are provided with ball valves. A first pressure gauge is installed on the ball valve of the pressure gauge connector. A liquid outlet pipe connector is arranged at the lower end of the cylinder wall of the liquid storage tank. The leaching column comprises a cylinder and an end cover. The end cover is connected with the cylinder through bolts. A liquid inlet pipe connector and a second pressure gauge connector which are provided with ball valves are arranged on the end cover. The ball valve on the liquid inlet pipe connector is connected with a liquid outlet connector on the liquid storage tank through a pipeline. A second pressure gauge is installed on the ball valve of the second pressure gauge connector. A right-angled ball valve, a pressure reducer and the ball valves are sequentially connected with the liquid outlet pipe connector of the leaching column. During testing, the liquid storage tank is fixed to an oscillator, a CO2 steel cylinder and an O2 steel cylinder are connected with the liquid storage tank, a uranium ore sample is placed into the leaching column, a leaching solution is prepared, and the uranium ore sample is leached through the leaching solution.

The invention discloses a device and method for continuous ultrasonic separation and sampling of dust-laden full-component oil and gas under pressure. The separation and sampling device and method include a full-component oil and gas recovery unit, an ultrasonic separation unit and a solvent circulation recovery unit; Oil and gas washing system, light oil recovery system, complete the recovery of light and heavy oil and gas sampling of full-component oil and gas; ultrasonic separation unit includes ultrasonic separator, solid collection tank, liquid collection tank, full-component oil collector, Complete the complete separation of full-component oil and dust and the collection of full-component oil; the sampling device is organically coupled with a special oil and gas collection process and an ultrasonic separation system to ensure that all fractions of light and heavy components in various high-temperature and high-pressure process gases The collection and sampling of oil ensures the accuracy and representativeness of sampling, the process is flexible, and the adaptability is wide, achieving the effects of high efficiency, energy saving and environmental protection.

The invention discloses a high-pressure water jet multi-channel switching control method and a high-pressure water jet multi-station automatic cleaning device. It is characterized in that an electric control overflow valve capable of releasing the pressure in the pipeline is connected in series between the output pipeline of the high-pressure water pump and the high-pressure multi-way valve block. Under the condition that the high-pressure water pump does not have to stop working, the automatic on-off switching between the branches is realized through the mutual cooperation of the electric control overflow valve and the electric control stop valve. An unloading link is added before each action of the electric control globe valve, that is, the electric control overflow valve must first return to the overflow state, so that the electric control globe valve operates under low pressure, realizes anti-high pressure impact protection, and improves the service life of the equipment. It has the advantages of simple structure, complete functions, stable performance, reliable control and wide applicable pressure range. It has good promotion and use value. It is mainly used in high-pressure water jet cleaning and operation in coking, metallurgy, chemical industry, mining and other fields.