30results about How to "Increase product volume" patented technology

The invention discloses an intrinsic safety and explosion isolation separated pneumatic valve positioner. According to the intrinsic safety and explosion isolation separated pneumatic valve positioner, an amplifier assembly is arranged in an intrinsic cavity; a circuit board, a nozzle assembly, a sensor assembly and other parts are arranged in an explosion isolation cavity. The size and weight ofthe explosion isolation positioner are greatly reduced, the mounting reliability of the positioner is enhanced, and accordingly, the explosion isolation positioner can be mounted on a valve conveniently.

The invention relates to a multifunctional module combined ocean platform and a use method. The multifunctional module combined ocean platform comprises a functional deck module (1), lower supporting auxiliary single modules (2) and connecting modules (3), wherein the functional deck module (1) floats on the water surface, and the connecting modules (3) are used for connecting the functional deck module (1) with the auxiliary single modules (2). The functional deck module (1) is of an unpowered flat plate structure and used for configuring operation equipment, each auxiliary single module (2) is of a cylindrical structure with a circular or polygonal horizontal section, a generating set is arranged in each auxiliary single module (2) and used for driving a jet propulsion device by the aid of an electrically-driven pump, and according to different use requirements, the ocean platform can be variously combined to use so as to achieve different requirements. The multifunctional module combined ocean platform is capable of arriving at a destination by means of self-propulsion, maneuvering performance can be improved, deck operation area can be widened, material storage capacity can be improved, power configuration can be enhanced, and operation capability is improved. The multifunctional module combined ocean platform adopts the modular generalized design, so that product batches are effectively increased, assembly line production of marine work equipment is realized, cycle is shortened, and cost is reduced.

The invention relates to an automatic screw tightening device which comprises a rack part, a guide part, a moving tightening part, a screw guiding and cutter relieving part and an auxiliary part, wherein the rack part consists of a bottom plate, a round guide rail and an upper cover board; the guide part consists of a moving guide plate, a screw guide barrel and a guide cylinder; the moving tightening part consists of a screwdriver rod, a torque transmission nail, an adjusting spring, a connecting sleeve, a moving plate, a moving cylinder and a pneumatic motor; the screw guiding and cutter relieving part consists of a spring, a lifting pin, a shaft pin, a swing iron and a fixing part; and the auxiliary part consists of a die and a control part. In the working process, a workpiece is fed into the die, a screw is conveyed to the screw guide barrel through a pneumatic conveying device and the screw is guided and limited to be separated from the screw guide barrel through the screw guiding and cutter relieving part. When the screw is tightened, the pneumatic motor of the moving tightening part is inflated to drive the screwdriver rod to rotate through a connecting sleeve and the torque transmission nail, and the moving cylinder is inflated to drive the moving tightening part to move so as to screw the screw tightly. Compared with the prior art, the automatic screw tightening device has the advantages of high efficiency, high quality, wide application range and the like.

The invention discloses a hydromethanation method for producing synthetic natural gas. The method comprises the following steps: (1) inputting the methanation raw material gas and water vapor into the main methanation device for methanation reaction; the methanation raw material gas is coal gas and / or coke oven gas; (2) the The outlet gas of the main methanation unit is mixed with H2 and then input to the auxiliary methanation unit for methanation reaction; the outlet gas of the auxiliary methanation unit is cooled and separated from gas and liquid to obtain synthetic natural gas products; the temperature of the H2 is 250 ℃~300℃. The hydrogen replenishment process provided by the invention can realize the control of H2 and CO2 content in the product gas, realize the control of product quality, and obtain high-quality synthetic natural gas products.

The invention relates to the field of medicine, in particular to a fructose diphosphate compound. An X-ray diffraction spectrum of the fructose diphosphate compound is shown as Figure 1. The invention further provides a preparation method of the fructose diphosphate compound. The preparation method includes: adopting raw materials including beer yeast, glucose, phosphoric acid and magnesium carbonate for fermentation; filtering, and performing ion exchange; decoloring, filtering, crystallizing and drying to obtain 1, 6-fructose diphosphate trisodium hydrate. The fructose diphosphate compound produced by the method is lower in hygroscopicity, higher in stability and conducive to production and application of injections; due to unique crystal form of the fructose diphosphate compound, oral administration bioavailability is improved, and the fructose diphosphate compound is suitable for production and application of tablets.

The invention provides a metal and alloy hollow powder preparing method. The method comprises the steps that a proper amount of main salt, sodium hypophosphite and sodium hydroxide are dissolved in deionized water to obtain a 50-200ml solution, and the solution concentration of the main salt, the sodium hypophosphite and the sodium hydroxide is 0.2-1.0mol / L, 0.3-3.0mol / L and 0.5-3.0mol / L respectively; a mechanical stirring rod is placed in the middle mouth of a three-mouth flask, the mail salt solution is poured into the three-mouth flask through an edge port, the three-mouth flask is placed in an oil bath which is 80-150 DEG C to be preheated, and the other two solutions are placed in the same oil bath to be preheated for 3-5min at the same time; the sodium hydroxide solution is poured into the three-mouth flask slowly through the edge port and then stirred for 5-10min with the mechanical stirring rod at a speed of 100-1000rpm; a proper number of stabilizers are added to prevent colloid decomposition; the sodium hypophosphite solution is poured into the three-mouth flask through the edge port and then stirred for 1-8h with the mechanical stirring rod at a speed of 100-500rpm till reaction ends.

The invention discloses a method of generating 1,2,4-butantriol by the in vitro enzyme reaction and application thereof, and belongs to the technical field of bioengineering. The method provided by the invention comprises the following steps: respectively constructing genetically-engineered bacteria of over-expressed D-xylonic acid anhydrase genes, 2-keto acid decarboxylase genes and alcohol dehydrogenase genes; after carrying out fermentation cultivation on the obtained genetically-engineered bacteria, crushing thalli by ultraviolet waves; collecting crude enzyme fluid; and after carrying out mixed adjustment on concentration of D-xylonic acid anhydrase, 2-keto acid decarboxylase and alcohol dehydrogenase, adding a reaction substrate to synthesize 1,2,4-butantriol. The method provided by the invention realizes synthesis of 1,2,4-butantriol in vitro by controlling the enzyme reaction and using D-xylonic acid as the raw material and has the characteristic of good convenience for enlarging production; and the enlarged yield can reach 5.98g / L.

The invention discloses a biosynthesis method of quercetin glycosides. The gene of the glycosyltransferase UGT73G1 mutant is connected with the sucrose synthase gene to obtain a recombinant plasmid, and a recombinant bacterium containing a double-enzyme system is constructed; the recombinant bacterium is inoculated in LB In liquid culture medium, cultivate, add inducer lactose to induce, fermented liquid is centrifuged to collect bacteria, the bacteria are broken, centrifuged to collect supernatant to obtain crude enzyme liquid; dissolve quercetin or isoquercetin in DMSO, add crude Enzyme solution, sucrose, reaction, and centrifugation to obtain supernatant quercetin-3,4'-diglucoside. The amino acid sequence of the glycosyltransferase UGT73G1 mutant is an amino acid sequence in which V371A and / or F381Y mutations occur in the sequence shown in SEQ ID NO:1. The mutant is simple to prepare, has a large yield, and realizes an increase in the yield of quercetin-3,4' diglucoside.

The invention discloses a high-yield and energy-saving electrolytic furnace for rare-earth metals. The high-yield and energy-saving electrolytic furnace comprises a cathode, a graphite anode, electrolyte, a graphite groove, a crucible, an inner steel sleeve, an outer steel sleeve, a filler layer, diamantane and a furnace panel. The high-yield and energy-saving electrolytic furnace has the characteristics that the furnace building cost is low, the service life is long, the heat balance is good, the content of impurities in a product is less, the yield is high, the energy is saved and the operation is convenient and the like.