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 containing a porous silicon aluminum material and a preparation method thereof, a molded body and a preparation method and application thereof, and a producing molding system. The composition contains hydrated alumina, the porous silicon aluminum material and a compound with at least two proton acceptor sites and with the value of phi of 5 orless. The present invention also discloses a hydroisomerization catalyst using the molded body prepared from the hydrated alumina composition as a carrier, a preparation method and a hydroisomerization method. The molded body with higher strength is prepared from hydrated alumina wet gel as a starting material, the step of drying of the hydrated alumina wet gel is omitted, the overall process flowis simplified, the overall operation energy consumption is reduced, dust pollution caused by use of pseudoboehmite dry powder as a raw material is avoided, and the working environment is greatly improved. The catalyst shows a higher catalytic activity in the hydroisomerization reaction.

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 solar heat storage material and a preparation method, in particular relates to a solar heat storage material of which the heat storage behavior can be directionally adjusted, and a preparation method, and belongs to the technical field of heat storage material preparation. The designed heat storage material is prepared from a graphene-nanosilicon dioxide composite material and stearic acid according to a mass ratio of the graphene-nanosilicon dioxide composite material to the stearic acid being (10 to 15) : (4 to 7), and in the graphene-nanosilicon dioxide composite material, a mass ratio of graphene to nanosilicon dioxide is (1 to 20) : (80 to 99). By blending the less graphene with nanosilicon dioxide, the heat storage behavior of an obtained finished product can be greatly adjusted and controlled; the components are arranged reasonably, a processing technology is simple, the heat storage behavior of the material can be directionally adjusted and controlled, the adaptability is high, and large-scale application is facilitated.

The invention discloses a hydrated alumina composition containing a ZSM-22 type molecular sieve, and a preparation method thereof, and a molding body, a preparation method and applications thereof. The hydrated alumina composition contains hydrated alumina, a ZSM-22 type molecular sieve and a compound having at least two proton acceptor sites, wherein the [phi] value is less than 5. The present invention further discloses a hydroisomerization catalyst using a molding body formed from the hydrated alumina composition as a carrier, and a preparation method thereof, and a hydroisomerization 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 drying stepis 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 obtained catalyst has good catalytic activity in the hydroisomerization reaction.

The invention discloses a hydrated alumina composition containing a MoY molecular sieve, and a preparation method thereof, and a molding body, a preparation method and applications thereof. The hydrated alumina composition contains hydrated alumina, a MoY molecular sieve and a compound having at least two proton acceptor sites, wherein the [phi] value of the composition is less than 5. The presentinvention further discloses 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, anda hydrocracking 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 drying step 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 in the hydrocracking reaction of hydrocarbon oils.

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.

The invention discloses a metal-resin composite body and a preparation method thereof. The metal is titanium or a titanium alloy. The composite body includes a metal base material and a resin layer attached to at least part of the surface of the metal base material. There are pits distributed on the surface of the metal substrate of the layer, part of the resin in the resin layer extends downwards and fills the pits, and the oxygen element content of the surface layer of the metal substrate is more than 1% by weight. The preparation method comprises immersing the metal substrate in an etching solution containing at least one alkali metal hydroxide, forming pits on the surface of the metal substrate; injecting a resin into the surface of the obtained surface-treated metal substrate to obtain A resin layer is formed. In the metal-resin composite of the present invention, the bonding force between the metal substrate and the resin layer is high, the resin layer is not easy to fall off from the surface of the metal substrate, and is suitable for use as an electronic product casing. The etching solution used in the preparation method of the invention has low toxicity and low volatility, high operation safety and little environmental pollution.