275results about How to "Change flow rate" patented technology

A power plant with at least two pressure vessels containing a hydraulic fluid. A heat exchanging assembly is in heat transferring association with the pressure vessels. The hydraulic conduit is hydraulically connected with the pressure vessels. A power outlet device is in hydraulic association with the conduit between the vessels and is configured for outputing power from the flow of the hydraulic fluid. A controlling mechanism is operably associated with the heat exchanging assembly to cause the heat exchanging assembly to alternately increase the pressure in one of the pressure vessels compared to the other. Thus, hydraulic fluid is caused to flow through the power outlet device alternately between the pressure vessels to produce power from the power output device.

Apparatus and methods for sorting and dispensing microparticles using a flow switch mechanism wherein changing flow rate into the flow switch changes flow path. The present invention is well-suited for precisely sorting microparticles, such as cells, for applications such as cell line development, monoclonal antibody selection and single cell research, etc.

The invention relates to a straight circulation water tank device for simulating resuspension of bottom mud sediment under the action of reversing currents. The straight circulation water tank device comprises a long and straight water tank, a bidirectional water supplying and discharging pipeline system, a water current power and control device and a flowing speed measuring and sampling device, wherein the long and straight water tank is connected with the water current power and control device through the bidirectional water supplying and discharging pipeline system, and the flowing speed measuring and sampling device is fixedly installed on the edge of the wall of the long and straight water tank, the water current power and control device provides power for water currents and controls the flowing speed and the flowing direction, the reversing currents are provided for the long and straight water tank through the bidirectional water supplying and discharging pipeline system, and thus resuspension of the sediment is achieved. The straight circulation water tank device has the advantages that the ups and downs and the resuspension of bottom mud under the action of the tide reversing currents in tidal reach can be simulated truly, and water samples at different depths can be collected under a certain hydraulic condition. The straight circulation water tank device is suitable for studying of quantitative relation among water, sediment and pollutants and is an effective device for studying the resuspension release effect of bottom mud pollutants in a river mouth area.

The invention discloses a thin-layer fluid type low-stress polishing device and belongs to the field of ultra-precise optical surface machining. The device comprises a sealed working chamber, a rotary table, an anode plate, an anode probe, a cathode platform, a workpiece, a first duct, a booster pump, a lifting platform, a second duct, a moulding nozzle, a liquid collection device and the like. During working, the workpiece is fixed on the rotary table, an electric field is produced between the anode plate or the anode probe and the cathode platform, an electrorheological polishing liquid is mixed uniformly, then is boosted by the booster pump and flows into the liquid collection device through the first duct and the second duct, under the action of pressure, the liquid flows into a thin-layer area through the moulding nozzle, and under the action of the flowing power and the shearing force, surface material removing is achieved. According to the thin-layer fluid type low-stress polishing device, the problem that the workpiece is broken easily by a thin optical component due to the large positive pressure is solved, meanwhile, the phenomena that medium-and-high frequency errors remain easily due to small tool machining are improved, and the device plays an important role in optical component machining which is high in precision, free of subsurface damage and controllable in medium-and-high frequency.

The invention discloses an unloading hopper for realizing the flat accumulation of blanking, which is characterized in that it comprises a hopper, a vertically arranged partition is arranged in the middle of the discharge opening at the lower part of the hopper, and material guide grooves are symmetrically arranged on both sides of the partition , the chute is movably connected with the partition plate through the first rotating shaft, the chute is provided with a chute to communicate with the discharge port, and the discharge port is symmetrically arranged on the top of the chute An opening control panel, the opening control panel of the discharge port is slidingly connected with the discharge hopper, and by controlling the opening and closing of the control panel of the discharge port opening, the openings of the material guide ports of the two material guide grooves are realized. Compared with the conventional unloading hopper, the unloading hopper provided by the present invention has added a material guide groove and a material distribution plate, and by adjusting the angle of the material guide groove and the material distribution plate, the direction and flow rate of the material flow can be changed, which can effectively change the flow rate of the material. The stacking state of the material can be realized, so as to realize the uniform and flat accumulation of the material blanking, and there is no need to artificially level the stockpile, thereby improving the operating efficiency and reducing the production cost.

The invention discloses a bush assembly capable of adjusting air flow of a combustion zone so as to solve the problem that lean-oil flameout of idling rating in a currently-occurring condition. The bush assembly comprises an bush out wall, a sealing sleeve, a floating body and a moving mechanism, wherein the bush outer wall is of a annular shape, and an installing hole is formed in an upstream endof the bush outer wall, the sealing sleeve is in a cylindrical shape and is coaxially fixed with the installing hole, and a floating channel is formed inside the sealing sleeve, the floating body isarranged on the inner side of the sealing sleeve in a coaxial mode, and can move up and down inside the floating channel, and the moving mechanism is connected with the floating body and controls thefloating body to move up and down. The bush assembly capable of adjusting air flow of combustion zone has the beneficial effects that the area of an air flow channel is changed by changing the heightof the bush outer wall, and therefore the air flow rate is changed, and the jet angle of an air inlet hole is finally influenced, the effect of adjusting the air flow of an annular region is achieved;the oil-gas ratio of the annular region can be adjusted by adjusting the air flow of the annular region, so that the phenomenon of lean-oil flameout of a combustor in the idling rating is prevented;and meanwhile, when the combustor works in a pre-mixing mode, the air amount of the annular region can be increased, so that the premixed effect of fuel and air is enhanced.

The invention provides an intelligent production adjusting method and device for gas wells and belongs to the technical field of oil field digitization. When oil pressure is higher than a certain pressure value P1, the liquid carrying capability of gas is in a strong state, a control valve is in a circulation-closed state, and at the moment, an underground controller has the maximal opening degree; when the oil pressure is lower than a certain pressure value P2, the liquid carrying capability of gas is poor, or gas cannot carry liquid, and at the moment, the opening degree of the throttling hole of the underground controller is controlled to increase the gas flow rate so as to enhance the liquid carrying capability; and. therefore, the oil pressure value and the casing pressure value of a pressure gauge are read, a reasonable valve opening degree is calculated in combination with the gas production rate, a control box sends a command to the control valve to enable the control valve to reach an appropriate opening degree, a control rod of the underground controller, of which the left face receives a smaller stress than the right face, moves leftwards till a balance is achieved, and the opening degree of the throttling hole is between the maximal opening degree and the minimal opening degree, so that the gas flow rate is the maximal, and the goal of carrying the largest volume of liquid is achieved.

The invention discloses a bearing bush friction wear testing machine and a testing method thereof. The bearing bush friction wear testing machine comprises a bracket, a driving device, a testing device, a loading device, a measuring device and a lubricating oil circulation supply device, wherein the driving device, the testing device, the loading device, the measuring device and the lubricating oil circulation supply device are mounted in the bracket. The bearing bush friction wear testing machine disclosed by the invention has the advantages that the bearing bush friction wear testing machinecan simulate actual working conditions, effectively control loads and accelerate friction wear test; and meanwhile, by using relative rotation of a bearing bush in the friction process, the frictionforce bore on the bearing bush is accurately measured by using a guide rail type force sensor.

The invention discloses a novel electrophoresis waste gas treatment process and a multi-stage efficient degreasing spraying tower thereof. The waste gas treatment process comprises: (a) preliminary impurity removal; and (b) spraying absorption. The spraying tower comprises a tower body and a liquid storage box, wherein an L-shaped gas conduction pipe, a fixed plate, an active carbon filler layer,a chemical industry filler layer, a hairbrush roller, a flow baffle, a liquid collecting hood, a distribution pipe and a liquid distributor are respectively arranged in the tower body. According to the present invention, the waste gas treatment process has characteristics of reliable operation, high treatment efficiency and good treatment effect, and can effectively remove harmful substances fromwaste gas and reduce the harmfulness of waste gas, such that the waste gas can achieve the industrial emission standards; and the spraying tower has characteristics of novel structure, large sprayingrange and complete spraying, and can increase the contact area between the absorption liquid and the waste gas and improve the absorption effect of the absorption liquid.

The invention discloses a method for preparing a metal organic framework material from a dielectric barrier discharge plasma. A metal salt and an organic ligand are added into a solvent, the metal salt, the organic ligand and the solvent are mixed and stirred evenly, and dissolved to obtain a reaction solution, the reaction solution is pumped into an inner tube of a dielectric barrier discharge plasma reactor, overflows from the edge of the inner tube lower than an outer tube, forms an even wall-hanging liquid film between the inner tube and the outer tube, and flows downwards slowly; and meanwhile, a working gas is introduced into the inner tube. Driven by a high-frequency high-voltage power supply, the plasma produced because of the discharge between a liquid electrode and a high-voltageelectrode of the outer tube acts on the liquid film flowing between the inner tube and the outer tube, so that the reaction solution reacts for a certain period of time under the action of the plasma, and the metal organic framework material is prepared. The method has the advantages of high synthesis speed, stable and efficient performance, strong adjustability, strong practicality, no secondarypollution and the like, and has a better application prospect.

The present invention provides a spiral heat exchange tube of which the cross section is annular, wherein, the helix angle of part with the heat exchange function is 10 DEG to 30 DEG. The thread pitch is 3-6 times of the outer diameter of the heat exchange tube. The inlet end 1 and outlet end 2 of heat exchange medium, which fix two ends of heat exchange tube to the heat exchanger, are equally one segment of straight tube. When the spiral heat exchange tube is installed into the heat exchanger, the pressure and flow velocity of medium (hot water, etc.) flowing through the heat exchanger tube can be continuously changed with a microseism mode. Compared with the prior heat exchange tube, the spiral heat exchanger according to the invention not only has high heat transmission efficiency, but also has strong self-cleaning and anti-scaling capability. The space can be effectively used and the capability of large heat transmission in small space is realized. The integrated energy-saving plan provided by the invention has the advantages of simple structure and low system cost. Relative to the prior self-cleaning heat exchange tube, the spiral heat exchange tube of the invention further has the advantages of smaller resistance, simpler structure, low cost, and suitability for quickly generalized and applied in practice.

The invention provides a churn screw drill for drilling. The churn screw drill for drilling comprises a bypass valve assembly, an anti-falling assembly, a motor assembly, a universal shaft assembly and a transmission shaft assembly, wherein the universal shaft assembly comprises a universal shaft assembly housing and a universal shaft; the transmission shaft assembly comprises a water cap and a transmission shaft; the universal shaft, the water cap and the transmission shaft are sequentially connected through screw threads; a main liquid delivery hole is formed in the center of the water cap; a plurality of water cap liquid inflow holes which are evenly distributed in a circular array mode and communicate with the main liquid delivery hole are formed in the side face of the water cap; a liquid delivery channel communicating with the lower end of the main liquid delivery hole is arranged in the center of the transmission shaft; a stop baffle is installed on the inner side of the universal shaft assembly housing; and the water cap liquid inflow holes are covered with the stop baffle when rotated to the stop baffle, so that the total liquid inflow area of the water cap is decreased. The churn screw drill for drilling has the beneficial effects that through the design, torsion and rotation speed of the motor assembly can be periodically changed, thus, a motor can generate continuous torsion while high-frequency low-amplitude torsion impact shock is transferred to a drill bit, and accordingly the jamming and slippage phenomena of the drill bit are avoided.

The invention discloses an automatic dedusting method and system for a dust removal pipeline. The automatic dedusting method comprises the steps that dust deposition weight data of each detection point in the dust removal pipeline are obtained; the dust deposition thickness of each detection point is calculated according to the dust deposition weight data; the pipeline blockage degree P and the dust deposition rate V of each detection point are calculated according to the dust deposition thickness, and the average dust deposition rate V<avg> of all the detection points is calculated according to the dust deposition rates V; when the pipeline blockage degree P of a certain detection point reaches the set value, dedusting is conducted by increasing the air door open degree of a pipeline body where the detection point is located; and when the average dust deposition rate V<avg> reaches the set value, the dust deposition rate is decreased by increasing the air door open degree of a main pipeline body. According to the automatic dedusting method and system for the dust removal pipeline, energy consumption of a dust removal system can be significantly reduced; pipeline abrasion is effectively relieved; long-term stable operation of the dust removal system is ensured; and in addition, the method adopts an automatic feedback closed-loop control mode, so that manual operation is not needed, and the operation and maintenance workload is small.

The invention discloses a domestic sewage recycling apparatus. The domestic sewage recycling apparatus comprises an apparatus body; the upper part of the apparatus body is provided with first rotatingshafts, and each first rotating shaft is fixedly provided with a crushing roller; a first filter screen and a second filter screen are arranged below the first rotating shafts inside the apparatus body; the second filter screen is close to the lower side of the first filter screen, and the second filter screen is installed on the rear wall inside the apparatus body in a sliding manner; the lowerside of the apparatus body is also provided with a gas inlet apparatus; a plurality of gas nozzles are uniformly fixedly installed on the upper surface of the gas inlet apparatus, and an exhaust end of each gas nozzle faces the second filter screen. When the sewage flows into the apparatus body from top to bottom, the two rotating first rotating shafts drive the crushing rollers to rotate so as tocrush solid garbage in the sewage, and the large solid garbage can be prevented from blocking a water inlet of the apparatus body; the domestic sewage recycling apparatus is also provided with the gas inlet apparatus, so that the aeration effect can be improved; the aeration speed can be increased, and the treatment efficiency on organic matters in the sewage can be improved.

A valve mechanism for a tube-type fluid container includes a valve seat portion having an upper opening portion and a lower opening portion; and a valve portion disposed co-axially with the upper opening portion. The valve portion includes a supporting portion attached at or below the lower opening portion, a closing portion for closing the upper opening portion, and a connecting portion connecting the closing portion and the supporting portion. At least either the closing portion or the connecting portion is resilient and capable of being deformed to open the upper opening portion when a fluid stored inside the container is pressed.