81results about How to "Reduce outlet pressure" patented technology

The invention relates to a sludge drying device and a sludge drying method thereof, wherein, the device comprises a closed transparent glass shell, a plurality of layers of tray stents transversely arranged in a shell, a feed inlet arranged on the transverse side wall of the shell corresponding to each layer of tray stent, a discharge outlet on a side wall corresponding to the feed inlet, a seal plate with transparent glass which can be disassembled and connected with the outer surface of the shell and can respectively seal the feed inlet and the discharge outlet, a material tray which can freely pass through the feed inlet and discharge outlet or is arranged on the tray stent, rectifier fans respectively arranged at the bottom and top of the shell, an air inlet which is arranged at the lower part of one side of the shell, a transparent glass seal-board which is articulated with the top of the air inlet and is matched with the air inlet, a rain insensitive device arranged on the air inlet, an air outlet pipe on the side wall of the shell corresponding to the air inlet, a matched ventilation fan, and a humidity automatic monitoring device which is arranged in the shell and controls the open and close of the ventilation fan.The product discharges the vapor of the sludge to outside to achieve fast drying.

The invention discloses a low pressure large flow pressure adjuster suitable for a low pressure drip irrigation system belonging to the technical field of agricultural water-saving irrigation. The technical proposal includes a shell, a water inlet arranged at one side of the shell and a water outlet arranged at the other side of the shell; the shell is internally provided with a pressure adjusting part that can move up and down. The pressure adjusting part divides an inner cavity of the shell into an upper cavity and a lower cavity, wherein, the lower cavity has water flow, and the upper cavity is provided with a spring feedback device and the spring feedback device acts on an inner upper wall of the shell and the upper surface of the pressing adjusting part. The lower part of the pressure adjusting part extends to the inner lower part of the shell along an inner wall of the shell. The extending part is provided with a water inlet through opening and a water outlet through opening corresponding to the water inlet and the water outlet. The invention has the advantages of good pressure adjusting performance, convenient installation and use, low starting regulation pressure and outlet pressure, simple structure, convenient manufacture, low cost, convenient maintenance, etc.

The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and / or secondary oxidation reactors and forming TPA and / or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant.

The invention provides an impact-resistant reverse unloading distribution type high-precision gas pressure reduction device. The device is designed by adopting a distribution pressure guide structure, outlet low-pressure gas at different positions is guided to the upper cavity of the valve core through feedback holes located in different sections of the valve core, the pressure deviation of the upper cavity and the lower cavity of the valve core is reduced, the upper cavity of the pressure reducing device is rapidly and accurately modeled in the adjusting process, and the sensitivity and the stability are improved. Meanwhile, the influence of inlet pressure is eliminated by adopting a reverse unloading structure design, the valve core has the unloading rod function, the high-pressure stress part of the valve element is isolated from the low-pressure stress part through the sealing assembly, pressure unloading design is realized, the upper sealing surface and the lower sealing surface of the valve body are subjected to equal-section design, so that the acting force of the inlet pressure acting on the upper end surface and the lower end surface of the valve core moving part is counteracted, the complete unloading of the inlet pressure is realized, so that the valve element is not influenced by the change of the inlet pressure in the adjusting process, so that the opening degree of the valve element is only influenced by the pressure change of the outlet.

The invention discloses a supercritical carbon dioxide turbine device capable of adapting to large-range back pressure and flow. A guiding volute inlet is provided with a flow testing and through-flow control system. High-temperature and high-pressure supercritical carbon dioxide working media pass through a guiding volute and then enter a nozzle ring to expand. The large head arc blade profile insensitive to the attack angle is adopted in the nozzle blade molded line, a device capable of adjusting the through-flow area is additionally arranged, the oblique angle of nozzle blades is adaptively adjusted through electric signals of a flow sensor, the through-flow area is changed, and therefore the supercritical carbon dioxide turbine device can adapt to the large-range flow work condition. When the working media enter an impeller, the internal energy and kinetic energy of the working media are converted into mechanical work to be output. An impeller outlet is provided with a back pressure testing and pressure expander control system. A variable geometric parameter self-adaption back pressure expander is adjusted through electric signals of a back pressure sensor, accordingly, the supercritical carbon dioxide turbine device adapts to large-range back pressure, and the turbine running efficiency is improved. The supercritical carbon dioxide turbine device has the beneficial effects that the supercritical carbon dioxide turbine device can adapt to the large-range back pressure and flow work conditions, the pneumatic efficiency is high, the self adaptability is high, the running cost is obviously reduced, and wide market prospects are achieved.

A depressurization process for a packed separation column is provided where the column system experiences a rapid and / or severe drop in pressure that could potentially damage column components. The process provides a safe de-pressurization of the column on the outlet side by decreasing the outlet pressure in controlled steps while allowing the inlet pressure of the column time to lower after each decreased step.

The invention discloses a hydrogen injection proportional solenoid valve comprising a shell. A coil is installed in the shell, and a coil framework is arranged on the outer side face of the coil; a pole shoe is arranged in the coil, and a spring seat is installed in the pole shoe; a spring is installed below the spring seat, and an injection molding connector covering the pole shoe is clamped on the upper face of the shell; a contact pin is inserted into the injection molding connector, and the other end of the contact pin penetrates through the pole shoe, and is in contact with the coil; a movable iron core is inserted into a through hole, and the other end of the spring is connected with the movable iron core; the lower end of the movable iron core is sleeved with a valve seat, and a sealing gasket is embedded into the lower end face of the movable iron core; a sealing base is inserted into the lower end of the valve seat; the sealing gasket is in contact with the sealing base, and ahydrogen nozzle is installed at the lower end of the sealing base; and a hydrogen inlet is formed in the side face of the valve seat in a communicating mode. The hydrogen injection proportional solenoid valve has the advantages of good sealing performance and capability of considering high, medium and low loads.

A pumping system is provided which is a mobile, vehicle-mounted pumping system, such as for water or fuels, which mounts on a vehicle and may be used for various applications. The pumping system operates a drive system and control system for liquid pumps almost exclusively by hydraulic fluid pressure.