7results about How to "Steady ejection" patented technology

The utility model discloses a double-injection urea pump and an injection system, and relates to the technical field of engine tail gas treatment. Comprising a pump body; the pump body is provided with a liquid suction cavity, a liquid inlet cavity and a liquid discharge cavity; a diaphragm is arranged in the liquid suction cavity; a first sealing structure is arranged between the liquid suction cavity and the liquid inlet cavity, and a second sealing structure is arranged between the liquid suction cavity and the liquid discharge cavity; the first sealing structure is configured to be opened so that urea can enter the liquid suction cavity through the liquid inlet cavity when the diaphragm deviates from the liquid suction cavity and negative pressure is formed in the diaphragm. The second sealing structure is configured to be opened when the diaphragm compresses the liquid suction cavity to form positive pressure in the liquid suction cavity, so that urea is discharged out of the liquid suction cavity through the liquid discharge cavity; only the diaphragm is arranged in the liquid suction cavity in the pump body, and structures such as a valve element and a valve plate are not arranged, so that the structure is simplified, the internal volume of the liquid suction cavity is increased, and the double-spray flow of urea is improved.

The utility model relates to the technical field of cleaning, and provides a powder chamber gun barrel and gun body powder cleaning device which comprises a powder chamber, a sliding groove is formed in the side face of the powder chamber, a bottom moving seat is arranged on the side face of the powder chamber, a sliding plate is connected to the top of the bottom moving seat in a sliding mode, and an adjusting device is arranged on the sliding plate. According to the utility model, when the motor is started, the output shaft of the motor drives the threaded rod to rotate, and the threaded rod is in threaded connection with the threaded sleeve, so that the rotation of the threaded rod is converted into the linear movement of the threaded sleeve. And movement of the threaded sleeve further drives the moving plate, the connecting plate, the connecting column, the fixing block and the powder spraying gun to integrally conduct lifting motion, the powder spraying gun moves up and down and left and right, the powder spraying gun can be moved out of the powder room to be cleaned, and through the technical scheme, the technical problem that the powder spraying gun cannot be cleaned in the related technology is solved.

The system comprises a forming module, a piezoelectric ceramic module in the forming module comprises a self-sensing part, and the system further comprises a data storage module, a piezoelectric ceramic driving module, a liquid pressure feedback module, a data processing module and a feedforward control module. The self-sensing part is matched with all the modules, the sensing capacity of the system is improved, the liquid pressure change in the guide pipe can be accurately captured in real time, the liquid drop forming process can be finely regulated and controlled, spraying abnormity is avoided, and the forming stability and reliability are improved. And re-planning motion planning of the piezoelectric ceramic based on feedforward control, wherein the motion planning comprises curve form, voltage amplitude and frequency change. And the conditions of nozzle blockage and guide pipe breakage can be sensed, production interruption and quality problems are avoided, continuous and stable operation of the system is guaranteed, and the forming quality and efficiency are improved.

The invention relates to a side slope repairing method for garden construction, and belongs to the technical field of garden construction. A bottom protection net, a top positioning plate, a first anchor rod, a side slope protection frame, a second anchor rod, a water passing pipe, a connecting pipe, an irrigation water pump, a concrete canal and a fine water and soil loss protection net are included; a mounting plate is fixedly mounted on the side slope protection frame, a placement groove is formed in the side slope protection frame, the water passing pipes are arranged in the placement groove, a sealing cover is clamped in the placement groove, the water passing pipes can be mutually communicated through a connecting pipe, and the irrigation water pump can be communicated with the water passing pipes through the connecting pipe. According to the device, slope soil can be effectively stabilized, so that water and soil loss is prevented, a stable and suitable environment is provided for slope vegetation growth, stable water supply can be conducted on slope restoration vegetation, the situation that the slope restoration vegetation dies due to water shortage is prevented, the whole device is convenient to disassemble and assemble, and after one slope is restored, the device can be disassembled and recycled.

This invention discloses a fuel atomization system suitable for the combustion chamber of a regenerative micro gas turbine, comprising: a T-shaped evaporator, a swirling oil-gas duct, a coaxial atomizing nozzle, an air intake pipe, and a fuel line protection sleeve; the T-shaped evaporator, the swirling oil-gas duct, and the coaxial atomizing nozzle are arranged coaxially, the air intake pipe is eccentrically connected to the side wall of the coaxial atomizing nozzle and can introduce high-pressure gas from the section before the regenerator after the compressor, the initially atomized mixed oil and gas enters the swirling oil-gas duct for further atomization and then evaporates and is ejected through the T-shaped evaporator, the fuel line protection sleeve is coaxially arranged on the outside of the swirling oil-gas duct and the coaxial atomizing nozzle and can avoid the direct impact of high-temperature backflow gas on the coaxial atomizing nozzle. This invention can significantly optimize fuel atomization quality, shorten the combustion chamber length, improve combustion efficiency, and improve the uniformity of combustion chamber outlet temperature distribution by adding a coaxial atomizing nozzle and an air intake pipe upstream of the traditional evaporator.

A liquid ejection head capable of ensuring stable ejection characteristics is provided. A liquid ejection head according to one embodiment includes an actuator portion, a nozzle plate, and a throttle portion. The actuator portion has grooves that constitute a plurality of pressure chambers and a plurality of side walls formed between the grooves that constitute the pressure chambers. The nozzle plate is disposed opposite one side of the plurality of pressure chambers. The throttle portion has a throttle wall that blocks a portion of a communication port of the pressure chamber of the actuator portion that communicates with the common chamber and forms a throttle port in which the width of the one side is reduced in the depth direction of the pressure chamber.

The utility model discloses a spray gun, aims at providing a spray gun that high spraying efficiency, strong uniformity, its technical scheme main points are including gun body and set up in the air inlet channel and the discharge channel of gun body, the handle of gun body is equipped with air inlet component and trigger switch, still be equipped with spray material subassembly, hollow gun needle spare and adjusting assembly in the gun body, spray material subassembly includes setting in the spray nozzle of gun body head, the feed connector of being located in the side of gun body head, the recessed ring of setting in the spray nozzle, the auxiliary air inlet hole of being located in the gun body head and the discharge amount adjusting rod of setting in the gun body, the recessed ring is matched with the auxiliary air inlet hole, makes gas spread all around, and the pressure uniformity of paint spraying is exported. The utility model is applicable to the technical field of spray gun.