30results about How to "Easy flow adjustment" patented technology

The present invention discloses one kind of electronic fuel oil jetting controller and controlling method for double fuel engine. The double fuel engine includes diesel engine system and gas fuel supply system, and system controller with engine throttle valve position signal as reference for determining the load of the engine. The present invention determines the gas fuel jetting amount and diesel oil inputting amount based on the parameters of engine rotation speed, admission pressure and exhaust temperature, and the gas fuel is fed to the mixer via the 1-12 jetting valves successively opened to mix with air before being jetted to the engine and ignited with the diesel oil the diesel oil engine inputs. The present invention has the advantages of high control precision, easy flow control, simple structure, low manufacture cost, etc.

Process and device for the transport of granular solids with a controlled flow rate, in particular for the transport of catalyst in a hydrocarbon reforming unit. The device comprises a gravity-feed pipe (A) for solid particles in the dense phase, a pneumatic transport pipe (C) in the dilute phase, and an inclined transfer pipe (B) that connects, without a buffer space, the base of the feed pipe to the pneumatic transport pipe, whereby this transfer pipe comprises means (17, 18, 35) for injection of a secondary gas located at the junction between the feed pipe and the transfer pipe.

The invention relates to a large nuclear reactor molten pool natural-convection heat transfer test system and method. The system comprises a large molten pool natural-convection heat transfer test piece, a molten salt heating furnace supplying high temperature melt, a nitrogen source connected to the test piece and the molten salt furnace, and a cooling water loop. The test system also includes supporting power distribution equipment, instrument control equipment and data measurement and acquisition equipment. In the cooling water loop, a centrifugal water pump drives water in a cooling water tank to take away a decay heat source through a cooling channel of the test piece, heated cooling water restores to an initial water temperature through a plate heat exchanger and a cooling tower and then returns to the cooling water tank. When the molten pool temperature reaches a steady state, the test ends, and the waste liquid in the test piece is discharged into a waste liquid pool. The invention also provides a test method. By means of the large nuclear reactor molten pool natural-convection heat transfer test, molten pool heat transfer data under a reactor serious accident condition can be acquired for safety design.

The invention provides a numerical control rolling machine tool for outer circle rolling machining of a torsion shaft. The numerical control rolling machine tool comprises a machine tool body, an outer circle rolling head, a dual centre locating device, a shifting fork connecting part, an internal spline clamp sleeve, a full closed protection cover, a displacement measurement system, a precise oilmist cooling system, a numerical control system and a hydraulic system. The outer circle rolling head of the machine tool adopts a multi-rolling-wheel symmetric rolling device structure, and when outer circle rolling machining of the torsion shaft is carried out, a workpiece bears multiple equal pressures in the radiation direction; a displacement sensor is mounted in a hydraulic cylinder of theouter circle rolling head, the change value of the rolling diameter in the outer circle rolling process is worked out through the rolling cylinder displacement value fed back by the displacement sensor, and intelligent judgment on the limiting position of the outer circle rolling arc end can be achieved; and the shifting fork connecting part replaces a traditional chuck, a transmission structure is optimized, meanwhile, worker operation is more convenient, the machine tool is more suitable for streamlined production operation, and the rolling machining efficiency is higher.

A pulsating spraying device includes a housing having an inlet for a liquid under pressure, and a plurality of discharge openings for discharging the liquid; an inlet chamber communicating with the housing inlet; a plurality of pulsating control chambers each having an inlet passageway on one side communicating with the inlet chamber, and an outlet passageway on the opposite side communicating with at least one of the discharge openings; and a plurality of oscillating members, one located in each of the fluid control chambers, configured to be rapidly oscillated by the flow of liquid into the respective pulsating control chamber via its inlet passageway, and to drive the liquid via its outlet passageway out of the respective discharge opening in the form of pulses.

The invention discloses a control method of a spray coating robot. According to the method, spray coating flow rate calculation is performed before fixed mold spray coating and movable mold spray coating, so that the spray coating flow rate can be regulated for meeting the mold temperature requirements. The method has the advantages that the automatic and manual switching operation can be performed, and the design is reasonable.

The present invention provides a high quality insoluble sulfur and a method for production the same. The method comprises molten sulfur is removed from sulfur steam by a gas-liquid separator before the sulfur steam is supplied to a cooler, so as to manufacture the high quality insoluble sulfur. According to the method for production the high quality insoluble sulfur, problems such as pipeline blockage in the manufacturing process are prevented, and the high quality insoluble sulfur whose residue on sieve(over 1.5% for 100 meshes) is low in content can be manufactured. The insoluble sulfur manufactured according to the method is over 90% in content of insoluble sulfur in relative to the total sulfur, lower than 1.5% in residue on sieve, lower than 71% in high throughput screening (HTS), and 5-30 [mu]m in particle size, has a high quality, and thus can serve as a vulcanizing agent in the rubber industry, especially for producing tires.

A coating apparatus (1) and method are disclosed for coating tablets in a rotating drilled container (2) at the outlet of which a rotating annular element (11) operates that is coaxial with the container, in which in an initial transition phase the annular element rotates in a direction that is opposite the rotation direction of the container to retain the tablets inside the container, forming a bed of tablets until a desired level is reached, and in a stationary phase the annular element rotates in a direction that is the same as the rotation of the container to permit the exit of the tablets, until the quantity of tablets entering the container is the same that the quantity exiting.

The invention relates to a valve for a pipeline, and in particular to a packless sealing proportional valve. The packless sealing proportional valve is composed of a valve body, a valve rod and a valve core, wherein a charge port and a discharge port are formed in the valve body. The packless sealing proportional valve is characterized in that the valve core is matched with the charge port and the discharge port by conical surfaces, the charge port and the discharge port are provided with sealing bosses, and conical sealing annular surfaces are arranged in the inner holes of the bosses. During the use of the packless sealing proportional valve disclosed by the invention, the charge port and the discharge port are connected with a charge tube and a discharge tube by pipeline joint parts respectively, the flow, opening and closing of the charge port and the discharge port are controlled by a valve rod regulator flow valve core and the valve core, the valve core is matched with the charge port and the discharge port by means of conical surfaces, and the application of a pressure is not required during closing. The packless sealing proportional valve has the advantages of being convenient to regulate flow, tight in closing, long in service life, and the like.

The invention discloses a hydraulic synchronizer protection circuit and a hydraulic synchronizer with the hydraulic synchronizer protection circuit. The hydraulic synchronizer protection circuit comprises a detection signal processing module, a comparison module and a switch control module. The detection signal processing module is provided with a first detection signal input end and a second detection signal input end, the comparison module is provided with a calibration value signal input end, the comparison module is electrically connected with the output end of the detection signal processing module, the switch control module is provided with an external control signal input end, the switch control module is electrically connected with the output end of the comparison module, and the switch control module outputs a switch signal of a hydraulic valve. According to the hydraulic synchronizer protection circuit, the state information of hydraulic cylinders of different paths of the hydraulic synchronizer is collected, processed and compared, when the synchronization of the hydraulic cylinders of the different paths exceeds the limit, the work of the hydraulic valve is stopped, andthe hydraulic valve is prevented from being damaged due the load driven by the hydraulic synchronizer.

A valve for switching waterways and adjusting flow has a fixed seat, a control piece and an operation mechanism. The fixed seat is provided with a fixed face, an inlet waterway and two outlet waterways, the inlet port of the inlet waterway and the outlet ports of the outlet waterway are arranged on the fixed face. The control piece is provided with a control face that is relied on the fixed face hermetically and a communicating groove that is concavely arranged on the control face. The operation mechanism is connected with the fixed seat and the control piece, and can drive the control piece to move, and then the control face can be driven to rotate and slide relative to the fixed face.

The invention relates to the field of plunger pumps, in particular to a radial variable plunger pump, which comprises a shell seat, a putting-in opening arranged on the upper end face of the shell seat in a penetrating mode and a pump mechanism arranged on the inner side of the putting-in opening in a sliding mode in the linear direction, wherein the pump mechanism comprises a pump stator, a rotor which is arranged on the inner side of the pump stator and moves along a circular track, and a plunger part which is movably connected between the edge of the rotor and the inner wall of the pump stator, and a transmission shaft part for driving the rotor penetrates through the upper end face of the pump stator and then is connected with external power equipment; and the pump mechanism slides on the inner side of the putting-in opening in the linear direction, so that the eccentric distance between the inner wall of the stator and the rotor is changed, the pulling or pushing distance of the plunger part is changed at the same time, the service life of the plunger pump is prolonged, and flow adjustment is more convenient.

The invention discloses an novel blast furnace stokehole molten iron silicon increasing device which comprises a rack, walking wheels are connected to bottom feet of the rack, the upper end of the rack is connected with a weighing sensor, the weighing sensor is connected with a stock bin, the upper end of the stock bin is open and connected with a triangular frame type cutting knife, and the bottom of the stock bin is connected with a quantitative impeller feeding machine. The quantitative impeller feeding machine is connected with a rotary connecting piece, the rotary connecting piece is connected with a material guiding articulated chute, a cross beam on the upper portion of the rack and a stand column are connected and fixed through a cable-stayed supporting arm, and the side face of the rack is connected with an integrated control box. The novel blast furnace stokehole molten iron silicon increasing device can be moved at will, precisely increase silicon at a fixed point, precisely calculate the silicon increasing amount, reduce the error, and facilitates feeding, the material flow is adjustable, and the labor consumption is reduced.