217results about How to "Avoid liquidity" patented technology

The invention relates to a method and system for realizing automatic correlation of multiple enterprises and multiple contact lists based on cloud computation. The system comprises an enterprise contact list cloud management module, an enterprise internal contact list database, an enterprise client contact list database, an enterprise service contact list database, an enterprise client and service contact list correlation module, an enterprise contact list cloud service module and a plurality of converged communication client sides. According to the method and system, cloud computation, the mobile internet and the converged communication client sides are used for realizing the purpose of providing a contact list service for the enterprises, the enterprise contact list cloud management module is used for conducting classified management on contact lists of each enterprise, the enterprise client and service contact list correlation module is used for realizing the purpose of establishing correlation between contact lists of different enterprises, and the enterprise contact list cloud service module is used for providing a contact list service for all the converged communication client sides. When the contact lists of a certain enterprise change, the other related enterprises can found out the changes timely, and corresponding contact persons can be found quickly, accurately and conveniently.

The invention relates to a metal hydride hydrogen storage device and a preparation method thereof; wherein, the device comprises a shell which is filled in superposed hydrogen-storage material sheet which consists of a spumescent metal substrate which absorbs no hydrogen and mixture of hydrogen-storage alloy powder and adhesive which are filled in the gap of the spumescent metal substrate; the hydrogen-storage material sheet is provided with a central hole which is coincident to the central hole of the shell head and is connected with the central hole of the head by a filter sheet which is embedded in the head; the central hole of the head is fixed with a joint pipe which is provided with a valve. The hydrogen storage device can effectively improve the heat transmission performance of the hydrogen storage alloy and hydride powder, effectively prevents the flowing and accumulating of the hydrogen-storage alloy and the hydride, solves the hydrogen absorption expansion problem of the hydrogen storage alloy powder, thus having the advantages of high-efficiency running, safety and reliability and being suitable for the production of meta hydride hydrogen-storage devices applied to various sites.

The invention relates to thermal conduction potting silica gel based on a phase-changing microcapsule and a preparation method of the thermal conduction potting silica gel. The thermal conduction potting silica gel is prepared from the following components by mass percent: 50 to 90 percent of dual-component potting silica gel, 5 to 25 percent of phase-changing microcapsules and 5 to 25 percent ofsurface-treated thermal conduction filler. The preparation method comprises the following steps: treating the surface of the thermal conduction filler; preparing the thermal conduction composite filler; preparing a component A and a component B in the dual-component potting silica gel; preparing a component A1 and a component B1 in the thermal conduction potting silica gel; and preparing the thermal conduction potting silica gel. According to the preparation method, the surface treatment is performed on the thermal conduction filler in the preparation process, so that the dispersity of the thermal conduction filler in a silica gel matrix is improved, and the thermal conduction performance of the thermal conduction potting silica gel is improved; and by adding the phase-changing microcapsule, the thermal conduction potting silica gel has the heat-storage temperature control performance. The thermal conduction potting silica gel has good thermal conduction performance and heat-storage temperature control performance.

The invention discloses a phase-change energy-storing fiber. The phase-change energy-storing fiber is of a skin-core structure which comprises a skin layer and a core layer, wherein a skin layer raw material is a thermoplastic polymer; and a core layer raw material is a mixture of the thermoplastic polymer, clay mineral powder and a phase-change material. A preparation method of the phase-change energy-storing fiber comprises the following steps: (1) weighing 2-20 parts of the phase-change material and 5-20 parts of the clay mineral powder in parts by weight, uniformly mixing the weighed phase-change material and clay mineral powder by virtue of ultrasonic oscillation under a vacuum condition, putting the mixture into a vacuum oven so as to obtain a composite phase-change material, and uniformly mixing 60-90 parts of thermoplastic polymer with the prepared composite phase-change material, so as to obtain the core layer raw material; and (2) carrying out melt spinning on the thermoplastic polymer, as skin layer raw material, and the core layer raw material by virtue of a compound spinning machine, so as to obtain the phase-change energy-storing fiber being of the skin-core structure. The preparation method is simple and low in cost, and the prepared phase-change energy-storing fiber has large phase-change enthalpy and a uniform temperature regulation effect.

The invention relates to a fracturing pulse sand filling system with ultrahigh flow conductivity. The fracturing pulse sand filling system comprises an external control unit, an internal controlled unit, an external fracturing pump truck unit, a sand mixing truck and a fluid storage tank. Fracturing sand-mixed fluid is accommodated in the sand mixing truck, fracturing base fluid is accommodated in the fluid storage tank, the external control unit controls the internal controlled unit, so that the sand-mixed fluid in the sand mixing truck and the base fluid in the fluid storage are alternately pumped into the external fracturing pump truck unit at intervals, and the sand-mixed fluid and the base fluid are finally alternately pumped into underground exploitation cracks at intervals by the external fracturing pump truck unit. The fracturing pulse sand filling system has the advantages that propping agent slugs added with fibers can be injected in a pulse manner under the control of the system, the flow conductivity of the prop cracks is greatly improved, a lag effect due to continuous opening and closing of an existing sand mixing truck is prevented, damage to the sand mixing truck is reduced, and pressure building during propping agent injection can be effectively prevented by the system.

The invention relates to a phase-change-material-based thermal management material, a preparation method and applications thereof, wherein the thermal management material comprises, by mass, 55-90% ofa phase change material, 4-20% of a thermal conduction filler, 4-20% of a flame retardant, and 2-10% of chopped fiber. According to the present invention, by adding an appropriate amount of the chopped fibers, the deformation of the phase change material due to volume expansion or contraction can be effectively prevented, such that the content of the phase change material in the thermal management material can be substantially increased so as to improve the heat storage capacity of the thermal management material and stably regulate and control the temperature.

The invention discloses a granular fatty acid methyl ester sulfonate (MES)-containing composite. A method for preparing the granular MES-containing composite comprises the following steps of: mixing the following raw materials including 40 to 90 mass parts of MES, 5 to 60 mass parts of anhydrous sodium sulphate, 0 to 30 mass parts of 4A zeolite, 2 to 20 mass parts of sodium carboxymethyl starch and 0 to 10 mass parts of bentonite uniformly, extruding and granulating under the condition of external protective wind, cooling by dried air at the temperature of between 5 and 30 DEG C to be hardened completely to obtain granules, and sieving by a 10 to 40-mesh screen. The granular MES-containing composite has the characteristics of high content of active matter MES and flowability and small influence on environment, is easy to dissolve, and can be used as the raw materials in many downstream processes.

The invention relates to a paint room with a paint production waste gas treatment system, and a paint production waste gas treatment method. The paint production waste gas treatment system comprises a waste gas treatment chamber communicated with a paint room body. A first longitudinal channel communicated with a waste gas outlet at the bottom of the paint room obey, a second longitudinal channel communicated with the top of the first longitudinal channel, a third longitudinal channel communicated with the bottom of the second longitudinal channel, and an exhaust hole arranged at the top of the third longitudinal channel are arranged in the waste gas treatment chamber. A first spray unit is disposed in the first longitudinal channel. A second spray unit is disposed in the second longitudinal channel. A third spray unit is disposed in the third longitudinal channel. Activated carbon filter cotton is disposed at the exhaust hole. three spray treatment procedures and one activated carbon filtering procedure are added to treat the paint production waste gas, so that paint mist and peculiar odors in the paint production waste gas are removed completely, no paint mist or peculiar odors are present in the exhausted gas and pollution of atmospheric environment and threat on human health are avoided.

A magnetic fluid acceleration sensor based on a first-order buoyancy principle belongs to the field of mechanical engineering measurement. The problem that the existing magnetic fluid acceleration sensor cannot be applied in engineering practice due to a variety of structure problems is solved successfully. The device comprises a first permanent magnet (1), a shell (2), a mass block (3), an end cover (4), a second permanent magnet (5), magnetic liquid (6), an upper coil (7), and a lower coil (8). When acceleration is produced outside, the nonmagnetic mass block moves in a cavity, the volume distribution of the magnetic liquid (6) in the shell (2) changes, a signal is output, and first-order buoyancy formed by the first permanent magnet (1) and the second permanent magnet (5) inside the magnetic liquid (6) causes frequency difference between the mass block (3) and the shell (2). Thus, the sensitivity of the sensor is improved.

The invention discloses a wall based on a raw bamboo framework. The wall based on the raw bamboo framework comprises the raw bamboo framework and a fibred cement board; the raw bamboo framework has a cuboid structure and comprises a plurality of upright columns, a first group of diagonal rods and a second group of diagonal rods; the upright columns are parallel to one another; the first group of diagonal rods are positioned on front side surfaces of the various upright columns; the second group of diagonal rods are positioned on rear side surfaces of the various upright columns; the various diagonal rods in the first group are parallel to one another; the various diagonal rods in the second group are also parallel to one another; the diagonal rods in the first group are intersected with the diagonal rods in the second group, and are connected with the upright columns; the diagonal rods in the second group are connected with the upright columns and side surfaces of the fibered cement board; and a gypsum-based thermal-insulation material wraps the raw bamboo framework. The wall based on the raw bamboo framework is high in strength and long in service life.

The invention relates to an integrated preparation technology of a loop heat pipe evaporator, which is realized through the following steps: selecting an evaporation cavity, removing an oxidation film on the inner surface of the evaporation cavity; adding mixed powder of porous wick sintered body powder and a pore creating material, inserting a cylindrical liquid storage cavity mold into the mixed powder, determining the insertion depth as per the size of the liquid storage cavity, compacting the mixed powder between the evaporator and the liquid storage cavity mold, putting the evaporation cavity into a sintering furnace for sintering, drilling a plurality of steam passages along the inner wall of the evaporation cavity by means of a bit after sintering and cooling, and taking out the liquid storage cavity mold, so as to obtain an integrated loop heat pipe evaporator. The porous wicks are directly sintered in the evaporation cavity in an enclosed manner, as a result, not only are theporous wicks tightly combined with the wall of the evaporation cavity to avoid problems of heat leakage or steam counterflow, but also the sintered porous wicks can be used directly to avoid problemsof the porous wick breakage brought by secondary machining and the requirement for high accuracy. Lower strength is allowed to realize high porosity factor, thereby facilitating enhancement of the suction force of the porous wicks.

The invention relates to a first-order buoyancy principle based magnetic liquid damping shock absorber with magnetic shielding covers, belongs to the field of mechanical engineering vibration, and successfully solves the problem that the existing magnetic liquid damping shock absorbers cannot be applied in engineering practice due to various structural problems. The absorber comprises a first permanent magnet (1), a housing (2), a mass (3), an end cap (4), a second permanent magnet (5), magnetic fluid (6), an upper magnetic inner sleeve (7), an upper magnetic shielding outer sleeve (8), a lower magnetic inner sleeve (9) and a lower magnetic shielding outer sleeve (10). When the external vibration occurs, a non-magnetic ball moves in a chamber, the magnetic fluid flows in a recess of the housing (2) to absorb energy, first-order buoyancy formed within the magnetic fluid by the first permanent magnet (1) and the second permanent magnet (5) allows frequency difference to be formed between the mass (3) and the housing (2), so that the maximum vibration damping efficiency is achieved, and the upper and lower magnetic shielding covers effectively prevent magnetic flux leakage of the permanent magnets.

The invention discloses a formaldehyde absorption tower. The absorption tower comprises a tower kettle, wherein the lower part of the tower kettle is provided with a mixed gas inlet and a finished product formaldehyde outlet, the upper part of the tower kettle is provided with a water inlet and a exhaust gas outlet, two layers of packing are arranged in the tower kettle, and formaldehyde solutioncirculating pipes are arranged between packing layers. During the displacement process that mixed gas moves from bottom to top and water flows from top to bottom, formaldehyde in the mixed gas is dissolved in water to form formaldehyde solution, wherein the formaldehyde solution is circulated between two layers of packing so as to gradually increase the concentration of formaldehyde. A sprinkler used for wetting the inner wall of the tower kettle is arranged below the packing layers so as to prevent the wall-cling phenomenon of the formaldehyde absorption solution. The formaldehyde absorptiontower can be used to prepare high concentration formaldehyde and has higher absorption efficiency; in addition, the absorption tower can solve the problem of formaldehyde polymerization in the production process of high concentration formaldehyde.

The invention discloses an external pressure-balance type Ag/AgCl reference electrode and a preparation method thereof. A porous ceramic pillar is located at the bottom of a cavity of a pressure cavity body and connected with the inner wall of the lower part of the cavity of the pressure cavity body by a first O-shaped sealing ring, the upper end face of the pressure cavity body is in close contact with a compression ring by an external nut, the lower end of the compression ring is provided with a taper hole, a circular-truncated-cone-shaped sealing element is arranged in the taper hole, an Ag/AgCl wire electrode is inserted in an internal reference substance in the pressure cavity body until extending to the upper end face of the porous ceramic pillar, and an electrode lead is led out through an axial through hole in the circular-truncated-cone-shaped sealing element located in the taper hole at the lower end of the compression ring and an axial through hole in the compression ring. According to the invention, a problem that various existing Ag/AgCl reference electrodes are inapplicable to high-temperature and high-pressure hydrothermal systems at a temperature and pressure range of 400-700 DEG C and 40-100 MPa can be solved, and a problem that samples are polluted and streaming potentials and use occasions are limited can be solved.

The invention relates to heat conduction and storage multifunctional pouring silica gel and a preparation method thereof. The heat conduction and storage multifunctional pouring silica gel consists ofthe following components in percentage by mass: 40-89% of double-component pouring silica gel, 5-20% of phase-change microcapsules, 5-20% of heat conduction packing after surface treatment, and 1-20%of a flame retardant, wherein the heat conduction packing consists of small particle size heat conduction packing and large particle size heat conduction packing through mixing. The preparation method comprises the following steps: performing surface treatment on the heat conduction packing; preparing the heat conduction and storage composite packing; preparing the double-component pouring silicagel; preparing components A1 and B1 of the heat conduction and storage multifunctional pouring silica gel; preparing the heat conduction and storage multifunctional pouring silica gel. Due to surfacetreatment on heat conduction packing of different particle sizes, the dispersibility of the packing in a silica gel substrate is improved, the heat conduction properties of the heat conduction and storage multifunctional pouring silica gel are improved, and due to addition of the phase-change microcapsules, the heat conduction and storage multifunctional pouring silica gel has heat storage temperature control properties.

The invention relates to a phase-changing microcapsule-based heat conducting potting silica gel comprising flame retardant and a preparation method thereof. The heat conducting potting silica gel is prepared from 40 to 89 percent of dual-component potting silica gel, 5 to 20 percent of phase-changing microcapsule, 5 to 20 percent of surface treated heat conducting filler, and 1 to 20 percent of flame retardant. The preparation method comprises the following steps: treating the surface of the heat conducting filler; preparing heat conducting composite filler; preparing a component A and a component B in the dual-component potting silica gel; preparing a component A1 and a component B1 in the heat conducting potting silica gel; and preparing the heat conducting potting silica gel. Accordingto the preparation method, the surface of the heat conducting filler is treated in the preparation process, so that the dispersity of the heat conducting filler in a silica gel matrix is improved, theheat conduction performance of the heat conducting potting silica gel is improved, and by adding the phase changing microcapsule, the heat conducting potting silica gel has heat storage temperature control performance. The heat conducting potting silica gel has good heat conduction performance and heat storage temperature control performance.

The invention relates to a heat-pump-type main-transformation heat-exchanging device with SF6 (sulfur hexafluoride) as a heat-exchanging medium and a heat-exchanging method. The heat pump type main-transformation heat-exchanging device comprises an SF6 heat pump compressor, a cooler and an evaporator, wherein one port of the cooler is connected with one port of the SF6 medium flow passage of the evaporator through a bidirectional throttle valve; the other port of the SF6 medium flow passage of the evaporator and the other port of the cooler are connected with two ports of the SF6 heat pump compressor through a four-way valve; two ports of transformer oil flow passage of the evaporator are connected with an oil inlet and an oil outlet of the main-transformation body; transformer oil in the main-transformation body is conveyed into the oil inlet from the oil outlet through an oil pump; and the transformer oil exchanges heat with the SF6 heat-exchanging medium inside the SF6 medium flow passage directly through the side wall of the transformer oil flow passage of the evaporator. The heat pump type main-transformation heat-exchanging device has huge advantages of safety, reliability, high heat-exchanging efficiency, small equipment volume, low oil consumption, small maintenance, economical overall operation and the like, and is a revolutionary innovation of a main-transformation heat-exchanging way.

The invention provides a cemented filling close to back processing technology for a goaf at the barren rock filling background and belongs to the technical field of mining engineering. The cemented filling close to back processing technology for the goaf at the barren rock filling background is characterized in that iron tailings and cementation powder are used as filling slurry, and the filling slurry is delivered to underground through an existing filling tube; liquid sodium aluminate accelerator which is, by mass, 7% of the cementation powder are added into a stirring bucket which is arranged on the plane of the goaf, the slurry is delivered to an overflowing pool which is built on the front edge of the goaf through a tube, the slurry takes advantages of the situation when plug flow is formed and slides into the goaf, the slurry entering the goaf loses liquidity in a short time and coagulates, and therefore bottom pavement is achieved; low-cement-sand ratio slurry is used for filling the close to back, and filling is finished, wherein the cement-sand ratio of the low-cement-sand ratio slurry is 1:10-1:12. The cemented filling close to back processing technology for the goaf at the barren rock filling background achieves rapid coagulation of the slurry, reduces the flow resistance of the tubes, the phenomenon that the slurry flows out under the condition that no sealing wall is arranged is avoided, the filling close to back effect is good, strength is high, and technology implementation cost is low.