36results about How to "Meet the requirements of the occasion" patented technology

The invention relates to a submarine hydraulic directional control valve, which is mainly used for a petroleum deep water well drilling well control device and comprises two parts of a hydraulic pilot valve and a fluid control main valve, wherein, the valve body of the pilot valve is fixed on the upper part of a main valve seat; the upper part of the valve body of the pilot valve is fixed with an electromagnetic control module; the valve body of the pilot valve is provided with three oil lines, the make-and-break of the oil lines is controlled by the electromagnetic control module fixed at the junction of the three oil lines; a piston is arranged in the valve body of the pilot valve and connected with a piston rod, and the other end of the piston rod is fixed with a columnar valve core. The main valve seat is provided with an oil guide port, an oil supply port, a drainage port and a functional port; a valve hood is fixed in the main valve seat; and the valve core is positioned in the cavity of the valve hood. The submarine hydraulic directional control valve of the invention has the advantages that the oil guide port, the oil supply port and the functional port are all arranged at one side of the main valve seat, which is convenient for integration design of all the oil lines and modularization installment; the valve is mainly made of seawater corrosion resisting stainless steel materials, has good inoxidizability, reliable operation and long service life, and is applicable to the deep water well control device.

The invention discloses a frequency converter configuration method and a frequency converter configuration system. The frequency converter configuration method comprises the steps of dividing a frequency converter executable file into a basic control software executable file and a function module software executable file; partitioning basic control software executable file memory space, corresponding variable memory space of the basic control software executable file memory space, function module software executable file memory space and corresponding variable memory space of the function module software executable file memory space by a frequency converter control single board memorizer, wherein the basic control software executable file comprises an entry address pointing to the function module software executable file memory space; memorizing the basic control software executable file in corresponding memory space of a frequency converter control single board according to designing; memorizing the function module software executable file in corresponding frequency converter memory space according to purposes, wherein a frequency converter comprises a control single board and power hardware, and the requirements of the method are met by the control single board memorizer. The frequency converter configuration system comprises the frequency converter and a frequency converter manufacturer function module software providing side. The frequency converter configuration method and the frequency converter configuration method, disclosed by the invention, are simple in operation and low in cost, and can meet the using requirements in more occasions.

The invention discloses a hydrated alumina composition and molded body, a preparation method and application thereof, and a production molding system. The composition contains hydrated alumina and a compound containing at least two proton acceptor sites. The composition has the phi value of 5 or less shown in the description. The invention also discloses a catalyst using the molded body of the hydrated alumina composition as a carrier and having hydrogenation catalysis effects, a preparation method thereof and a hydrogenation treatment method. The high strength molded body is prepared from hydrated alumina wet gel as a starting raw material so that the hydrated alumina wet gel drying process is avoided. In molded raw material preparation, water for preparation of the molded material from pseudo-boehmite dry glue powder is avoided so that the overall processes are reduced, overall operation energy consumption is reduced, the dust pollution caused by the use of pseudo-boehmite dry glue powder as a raw material is avoided and the working environment is greatly improved.

The invention discloses a hydrated alumina composition and a preparation method thereof, and a molding body, a preparation method and applications thereof. The titanium-containing hydrated alumina composition contains hydrated alumina, a molecular sieve and a compound having at least two proton acceptor sites, wherein the [phi] value of the composition is less than 5. The present invention furtherdiscloses a catalyst using a molding body formed from the hydrated alumina composition as a carrier and having hydrogenation catalysis effect, and a preparation method thereof, and a hydrotreatment method. According to the present invention, the high-strength molding body is prepared by using the hydrated alumina wet gel as the starting raw material, such that the hydrated alumina wet gel dryingstep is eliminated, the total process is simplified, the total operation energy consumption is reduced, the dust pollution caused by the application of the pseudoboehmite dry glue powder as the raw material is avoided, and the working environment is greatly improved; and the catalyst using the molding body prepared from the hydrated alumina composition as the carrier has high catalytic activity inthe hydrocracking reaction.