43results about How to "Stable gas flow" patented technology

The invention provides a diaphragm type gas meter. The diaphragm type gas meter comprises a movement, wherein the movement comprises a diaphragm box, two surface diaphragms, two diaphragm covers, a valve cover and four-axis coupling rotation systems, wherein the diaphragm box comprises a valve base and two metering chambers; the two surface diaphragms are located in the metering chambers, respectively; each surface diaphragm is connected with the corresponding four-axis coupling rotation system; a vertical shaft is fixedly connected with one end of a rocking bar and the other end of the rocking bar is hinged to one end of a connection rod; the other end of the connection rod is hinged to a crank; a central shaft of the crank is a third rotary shaft; a central crank wheel sleeves a middle shaft; the valve cover and the central crank wheel are coaxially arranged; the central crank wheel rotates around the middle shaft so that the valve cover rotates around the middle shaft synchronously; the deviation between mounting extreme positions and optimal extreme positions of the surface diaphragms is in a range from -0.5mm to +0.5mm, and the angle error of the rocking bar is in a range from -0.8 degree to +0.8 degree; and a fine tuning device is mounted on the central crank wheel. The gas meter is good in metering accuracy and high in metering precision and an applicable range of the diaphragm type gas meter is expanded.

The invention provides a method for the continuous synthesis of glyphosate by the dimethyl ester method, which comprises the steps of acidifying and mixing the synthesis solution prepared from paraformaldehyde, glycine and dimethyl ester with hydrochloric acid and then entering the hydrolysis reaction zone. The reactor maintains a continuous state; the acidified synthetic solution is continuously hydrolyzed in the hydrolysis reaction zone to form glyphosate salt, and the raw glyphosate powder is obtained by continuously discharging and neutralizing crystallization. Among them, the preferred embodiments of the hydrolysis reaction zone include "one tower with two tanks" and "three tanks in series". The invention realizes the continuous hydrolysis of glyphosate, simplifies the process and realizes large-scale production.

The invention relates to the field of coke oven gas, in particular to a novel coke oven gas regulating device for controlling the flow rate of the coke oven gas entering a coke oven combustor. The coke oven gas regulating device comprises a reducing cross, a shaped steel pipe, a nozzle, an outer square pipe cap, an outer square pipe plug and a movable joint, and is characterized in that the shaped steel pipe and the air inlet end of the nozzle are provided with horn mouths; the air outlet end of the nozzle is provided with a horn mouth, so that the length at the position where the diameter of the nozzle is minimum is between 1 and 3 millimeters. The shaped steel pipe and the nozzle adopt a pressed and close contact mode. The novel coke oven gas regulating device has the advantages that: the structure is reasonable and the effect is remarkable, and resistance loss generated when a gas passes through the regulating device is reduced effectively; oil tar in the gas is prevented from depositing on the nozzle, so that the flow rate of the gas flowing through the nozzle is stable; the oil tar between the shaped steel pipe and the nozzle is not easy to deposit, and the nozzle is convenient to disassemble and replace; and the pipe cap is prevented from knocking heads to cause personal injury because that the space and the height of basement are not enough so as to enhance the security.

The application discloses a gas turbine exhaust device, which includes: a transition section, the transition section is a circular or ring-shaped structure, and the transition section has 2 n A fan-shaped or fan-shaped air intake channel; a diffuser section, the diffuser section is connected to the transition section, and the diffuser section has a diversion channel with the same number of intake channels, the inlet end and the outlet end of the diversion channel are perpendicular to each other, and turn to The passage has an inlet port and a rectangular outlet port having the same shape as the inlet passage; and a converging section, which is fixed to the outlet end of the diffuser section and is used for converging and diverting the passage into one body. The exhaust device of the gas turbine of the present application is designed in a split type through the flow path of the exhaust device, and the inlet gas is divided into 2 through the transition section. n Afterwards, through the deceleration and deflection of the diffuser section, the gas equivalent turning radius ratio is reduced, and finally converged into a flow path through the converging section, which also has the functions of ejection and rectification. This application makes the gas flow more stable and the flow direction more accurate. Regular, total pressure loss is smaller.

The invention relates to an upper air feeding burner. The upper air feeding burner is characterized by comprising a burner base, an upper base cover, an inner burner cap seat, an inner burner cap, an inner injection pipe, an outer burner cap seat, an outer burner cap and an outer injection pipe; a base cavity is formed in the burner base, an inner ring air inflow channel and an outer ring air inflow channel are arranged in the burner base, the inner ring air inflow channel is provided with an inner ring nozzle, and the outer ring air inflow channel is provided with an outer ring nozzle; an air supplementing inlet is formed in the upper base cover; the inner burner cap seat is arranged on the upper base cover; an inner burner cap hole is formed in the inner burner cap and an inner ring gas channel is defined by the inner burner cap and the inner burner cap seat; one end of the inner injection pipe is opposite to the inner ring nozzle and the other end of the inner injection pipe is communicated with the inner ring gas channel; the outer burner cap seat is arranged on the upper base cover; an outer burner cap hole is formed in the outer burner cap, an outer ring gas channel is defined by the outer burner cap and the outer burner cap seat, and an air supplementing inflow channel is defined between the upper base cover and the outer burner cap seat; and one end of the outer injection pipe is opposite to the outer ring nozzle and the other end of the outer injection pipe is communicated with the outer ring gas channel. The upper air feeding burner is simple in structure and high in burning efficiency.