31results about How to "Solving Stress Problems" patented technology

The invention discloses an internal-condensation metal inner tube type solar energy heat-collecting device which belongs to the field of solar energy heat utilization. A filling fixture, an involute type reflection surface, a metal absorption tube, a metal regulating tube, a screw and a piston are sequentially inserted in an outer glass tube; upper ports and lower ports of the metal absorption tube and the metal regulating tube are respectively sealed by an upper end cover and a lower end cover through welding, a water inlet and outlet pipe is connected to the lower end cover and a steam exhaust pipe is connected to the upper end cover, the screw penetrates through the upper end cover to be connected with a motor, the motor is fixed at the outer part of the upper end cover, two ends of the outer wall of the metal absorption tube are inwards sequentially provided with straight mouth rings, corrugated rings and alloy rings from openings in a sleeving and welding manner, and one ends of the two alloy rings at two ends are respectively in burn-back with two ends of the outer glass tube so that a vacuum interlayer is formed between the outer glass tube and the metal absorption tube. The internal-condensation metal inner tube type solar energy heat-collecting device can be used for condensing light and bearing pressure, can be made into a single-tube water heater, has capabilities of freely regulating water storage quantity and providing steam or boiled water, and can be used in life, water purification, heating, refrigerating and the like.

The invention provides a method and a device for preparing CO (Carbonic Oxide) gas in real time. The device for preparing the CO gas having the content of 2-10% in real time comprises a cylinder, a support plate, an adapter, a contraction section, a support disc and an aluminum silicate fiber felt. The contraction section of which the taper is 30 degrees is formed at the lower end of the cylinder, while the support disc is welded on the port of the upper end of the cylinder. One end of a charging pipe penetrates through a via hole formed in the support disc and then is mounted in the cylinder. One end of an exhaust pipe penetrates through the via hole formed in the support disc and then is mounted in the cylinder. One end of a gas inlet pipe penetrates through the via hole formed in the support disc and then is mounted in the cylinder. While the CO gas is prepared, in order to prevent thermal treatment hydrogen embrittlement of ultrahigh-strength steel and solve the problem that hydrogen is contained in the existing thermal treatment protective atmosphere, the CO gas is taken instead of H2 and oxygen-free thermal treatment of products in a controllable atmosphere is realized.

The invention belongs to the technical field of hypersonic wind tunnel tests, and discloses a flexible pipeline device used for gas supply by mixing and heating gas jets in a hypersonic wind tunnel. The flexible pipeline device includes a flexible hose and a rigid pipe connected in sequence, and a fixing device; the middle section of the flexible hose is a hose, and the two ends are flanges; The hard pipe arranged on the windward side of the mechanism scimitar and extending from bottom to top, and the fixing device for fixing the hard pipe on the windward side of the mechanism scimitar; the inlet end of the hard pipe is provided with a hose adapter, and the end face of the hose adapter is provided A lens pad is provided for sealing with the flange interface of the flexible hose; the outlet end of the hard pipe is provided with a flange connected with the air inlet pipe of the test device. The flexible pipeline device solves the gas supply problem of the heating jet under high temperature and high pressure and a variable attack angle, and has engineering application value.

The invention relates to a concentrating solar photo-thermal and photoelectric mixed collector. The collector comprises quartz heat colleting tubes which are internally filled with semitransparent liquids, a photovoltaic cell and a cooling channel thereof. The collector further comprises reflectors arranged on two sides of the quartz heat collecting tubes, quartz glass tubes externally surrounding the quartz heat collecting tubes, the photovoltaic cell and the battery cooling channel, metal end covers at two ends of the quartz glass tubes and thermal expansion counteracting structures. The quartz glass tubes tightly seal the heat collecting tubes in a vacuum environment, so that the heat loss of the heat collecting tubes is reduced; the quartz heat collecting tubes are designed as single-sided or double-sided concave channels, so that the incident rays at the photovoltaic cell are more uniform, and therefore, the photoelectric efficiency is improved and the pressure bearing capacities of the quartz heat collecting tubes are improved; and the thermal expansion counteracting structures absorb axial thermal deformation at a high temperature of the heat collecting tubes. Compared with the prior art, the solar utilization ratio of the photo-thermal and photoelectric mixed collector is effectively improved, the problems of thermal expansion and pressure resistance of the heat collecting tubes are solved, and the stability of the mixed collector is improved.

The invention belongs to the technical field of water treatment and discloses a connector and a control method thereof. The connector comprises a connector body, an electric control valve, a control circuit and wires, and the electric control valve, the control circuit and the wires are arranged in the connector body. The electric control valve is connected with the control circuit through the wires; the connector body at least comprises a first water inlet, a first water outlet and a second water outlet, and the first water inlet is respectively connected with the first water outlet and the second water outlet through the electric control valve; when the electric valve is in a first operating state, a passage between the first water inlet and the second water outlet is open; when the electric valve is in a second operating state, a passage between the first water inlet and the first water outlet is open. Owing to a high-speed instantaneous characteristic of the electric control valve, at least one water outlet passage in the connector is kept open constantly, and consequently the problem of pressure bearing is avoided effectively, potential risks of shedding and water leakage of the joint of a water source water outlet and a water treatment device are eliminated, and safety in use is improved.

The invention provides a sealing device for laser welding, and relates to a sealing structure. The device solves the problems that the multi-position continuous laser welding of structural members cannot be completed and the pressure bearing cannot be realized in the processes of vacuum pumping and argon filling for the existing laser welding by using transparent glass. The device comprises a vacuum chamber and a mounting frame which is fixedly provided with a transparent glass plate, and also comprises an air cylinder fixing seat, a sealing cover plate, N air cylinders, N slide valves and N push rods, wherein the mounting frame which is fixedly provided with the transparent glass plate is inserted into the middle of the upper wall of the vacuum chamber; the N air cylinders are uniformly distributed on the air cylinder fixing seat in the circumferential direction, and the end parts of driving rods of the N air cylinders are fixedly mounted on the sealing cover plate; the N slide valves are uniformly distributed on the edge of the mounting frame which is fixedly provided with the transparent glass plate, each slide valve comprises a valve rod, a valve body and a sealing ring, the sealing rings are fixedly mounted on the valve rods, the valve rods are vertically mounted in the valve bodies in a sliding manner, and the sealing rings are bonded with inner cavities of the valve bodies. The device is used for laser welding.

The invention provides a pressureproof sealed cabin suitable for underwater motions. The pressureproof sealed cabin comprises a plurality of cone-shaped cabin sections and a plurality of columnar cabin sections which are connected in series, wherein an axial sealing structure is formed between one cone-shaped cabin section and another cone-shaped cabin section and a radial sealing structure is formed between each cone-shaped cabin section and each columnar cabin section or between each columnar cabin section and another columnar cabin section. Compared with the prior art, the pressureproof sealed cabin provided by the invention has the advantages that through structural optimization design and sealed design, the pressure-bearing and sealing problems of the pressureproof cabin in a high speed moving process are solved. The ways of axial docking sealing design between the cone-shaped sections as well as the radial sealing designs between the cone-shaped sections and the columnar sections and between the columnar sections are put forward, so that the problem on sealed design of the cone-shaped and columnar sections of the pressureproof cabin is effectively solved.

The invention relates to the technique for cooling hot gas, particularly to a temperature reduction method for hot gas and a device thereof. At present, the method for reducing temperature by spraying is used widely, which not only increase the composition of hot gas and the volume flow, but also increase the investment of system, with low heat exchange efficiency and difficulty to control the process. The invention comprises a tube bundle heat exchanger canister, an outer jacket of a tube bundle cooler, a light tube heat exchange unit, and a finned tube heat exchange unit. The light tube heat exchange unit and the finned tube heat exchange unit are orderly disposed inside of the tube bundle heat exchanger canister. The outer jacket of a tube bundle cooler is fixedly disposed on the outerwall of the tube bundle heat exchanger canister. The hot gas is cooled by air exchanging heat with recycled cooling water by entering the tube bundle heat exchanger. By adopting the tube bundle heat exchanger, with the outer jacket opening, the invention can efficiently decrease the temperature of the tube bundle heat exchanger, decrease the load of canister, reduce the thickness of the canister,and lower the investment.

The invention discloses a high-temperature and high-pressure-resistant stirrable intermediate container device and a porous medium displacement experimental system, comprising an intermediate container and a stirring mechanism, the intermediate container includes a cylinder body, an upper end cover, a lower end cover, an upper end cover, a lower end cover and a cylinder The body is screwed tightly and sealed, and the stirring mechanism is arranged in the intermediate container; the upper end cover and the lower end cover are provided with axial through holes, and the top of the upper end cover and the bottom of the lower end cover are connected with two open valves; the stirring The mechanism is a cylindrical structure, and its outer diameter matches the inner diameter of the cylinder. The side of the stirring mechanism moves up and down along the inner wall of the cylinder. The stirring mechanism is equipped with a piston mechanism to seal and isolate the upper and lower parts of the cylinder. The invention improves the structure of the existing intermediate container so that it can withstand high temperature and high pressure and realize the stirring function. It can also increase or decrease the number of battery packs to change the battery capacity to meet the needs of different stirring times. At the same time, the control system is improved to make it better. achieve stirring.

The invention provides an oil and water two-phase metering device which comprises a microcomputer (1), a bottom plate (2), a thermostat (3), an oil and water separation part, a high-pressure window part, an oil volume metering part and a total volume metering part, wherein the oil and water separation part, the high-pressure window part and the oil volume metering part are arrayed linearly in sequence, arranged on the bottom plate (2) and placed in the thermostat (3). The device achieves separated metering of an oil and water mixture during a scientific research experimental process of an oil field, and measurement of the instantaneous flow rate and accumulated flow rate of the total volume of the oil and water mixture on line at high temperature and high pressure, and the instantaneous flow rate and accumulated flow rate of oil and water; the device and a front end experimental model can be placed in the same temperature field; the distance between the metering device and the experimental model is shortened to the greatest extent; and a reliable method is provided for reflecting states of the oil and the water in the model more precisely and timely.