32results about How to "Solve flow problems" patented technology

The invention discloses a direct-current solid-state circuit breaker which comprises a direct current power supply and a load, and also comprises a master switch unit A and an auxiliary switch unit B, wherein the master switch unit A comprises a master switch thyristor and a master switch power diode, and the auxiliary switch unit B comprises a first thyristor, a second thyristor, a third thyristor, a fourth thyristor, a fifth thyristor, a sixth thyristor, a seventh thyristor, a first inductance, a second inductance, a first storage pulse capacitor, a second storage pulse capacitor, a first current-limiting power resistor, a second current-limiting power resistor and a fly-wheel diode. The structure in the invention can effectively avoid the problems that the inherent leakage current of the devices can lower the voltage of the storage pulse capacitor, and large resonance currents can flow through the power supply when the power supply is unreliably or faultily turned off.

The invention provides an electrical heating continuous coal pyrogenation coking furnace which includes a furnace body, the furnace body is equipped with a hopper, a pre-heating segment, an electrical heating main body segment, a gas cycle cooling segment and a coke discharge segment orderly from upper to down; control valves are set among the hopper, the pre-heating segment, the electrical heating main body segment, the gas cycle cooling segment and the coke discharge segment. The coking furnace has advantages as follows: 1. the furnace can control rolling speed and heating effect of moulded coal efficiently in rolling process of coking coal; 2. the furnace solves temperature and environment atmosphere required by the coal pyrogenation coking; 3. the furnace changes traditional coke cooling method by water into inert gas cycle for realizing heat energy utilizing fully, is energy-saving and environmental-friendly; 4. the furnace reduces raw material cost, increases coke quality and reduces coke foam and coke particle generating; 5. the furnace can replace full coal gas by electrical heating which can solve smoke pollution efficiently.

The invention relates to a polyether-based composite phase change material and a preparation method thereof, and belongs to the technical field of novel materials. The polyether-based composite phasechange material comprises the following components in percent by mass: 23-70% of a phase change supporting material, 1-7% of a carbon material and 30-75% of polyethylene glycol, wherein the phase change supporting material is a polyacrylate polymer, and a monomer structure of the olyacrylate polymer is as shown in the specification, wherein n is 5-90, m is 50-1000, R1 is -H or -CH3, and R2 is -CH3or -CH2CH3; and the carbon material is graphene or graphene oxide. The novel heat storage material is high in energy storage density, high in heat conductivity coefficient, good in heat stability, simple in synthesis technology and good in shaping performance, so that the novel heat storage material has very strong practicability.

The invention relates to a vibrating screen plate tower for continuous production of liquid-liquid-liquid three-phase extraction. A cylindrical tower body comprises a light-phase clarification outer tank connected to the upper part of the cylindrical tower body and a tower bottom clarification tank connected to the lower part; a spindle leads to the lower part of the cylindrical tower body from the exterior of the light-phase clarification outer tank; the upper part and the lower part of the cylindrical tower body are provided with a conical liquid baffle and a light-phase distributor which are arranged on the spindle respectively; a middle screen plate is arranged in the middle of the spindle; a heavy-phase guide cylinder is arranged inside the light-phase clarification outer tank; a heavy-phase mixing chamber is arranged inside the heavy-phase guide cylinder; a bottom liquid outlet of the heavy-phase guide cylinder is positioned at the conical liquid baffle; a polymer phase distributor and an aqueous phase distributor are arranged on a polymer phase conduit and an aqueous phase conduit in the heavy-phase mixing chamber; a tower top screen plate is fixedly arranged on the spindle in the heavy-phase mixing chamber; a sealing ring is arranged between the spindle and the heavy-phase mixing chamber; and two layers of deflection baffles which are arranged in a staggered mode are fixedly arranged on the spindle in the tower bottom clarification tank. The vibrating screen plate tower has high mass transfer efficiency and high controllability.

The invention discloses a domestic garbage bag-breaking and sorting all-in-one machine which mainly comprises a bag breaking roller, a bag breaking cutter, a tearing roller, a tearing cutter, a garbage baffle, a discharge sliding plate, a sorting assistance roller and a sorting assistance slide way, and is characterized by further comprising an upper pre-tightening adjustment device, a lower avoidance device, a sorting device and a sorted plastic discharge chute, wherein the bag breaking cutter is arranged at the right of the bag breaking roller; the tearing roller is arranged under the right of the bag breaking roller; the tearing cutter fixed on a tearing cutter baffle is arranged at the left of the tearing roller; the sorting assistance roller is arranged between a discharge slide way and the garbage baffle; the sorting device is arranged at the right lower corner of a stand; the sorting device comprises comb needles and a sorting rotary drum, and the comb needles are evenly arranged on the sorting rotary drum. The domestic garbage bag-breaking and sorting all-in-one machine provided by the invention is applicable to treatment of dry and wet urban domestic garbage, is free from secondary pollution and high in working efficiency and has a good sorting effect.

The invention discloses an automatic-force hydrogen pressurized circulation system of an automotive fuel cell; the potential energy of the high-pressure gas in an on-board gas cylinder is used as power of pneumatic gas pressurized pump, thus achieving the objects of automatic circulation and pressurization. The automatic-force hydrogen pressurized circulation system solves the technical difficult problem of flowability of gas in the galvanic pile of the fuel cell, achieves the objects of high power generation efficiency and prolonging the service life of the cell, and solves the problems that the energy resource is wasted as the residual hydrogen that is not completely reacted in the galvanic pile has to be exhausted to achieve the object of the flowing of gas.

The invention discloses a coating machine internal pressure control mechanism, and relates to the technical field of pharmaceutical machinery, the coating machine internal pressure control mechanism comprises a shell, the outer wall of the shell is sleeved with an air pressure control mechanism, one side of the shell is provided with a driving motor, the inner wall of the housing is provided with a stirring cylinder, and the outer wall of the stirring cylinder is connected with a plurality of groups of driving teeth in the shell; a circulating mechanism is arranged on one side of the shell and extends to the inner side of the stirring barrel. By arranging the air pressure control mechanism and the circulating mechanism, when air pressure control is carried out, the internal volume of the coating machine can be effectively changed through the change of the flexibility of flexible glue, so that the internal pressure of the coating machine is adjusted, air does not need to be exhausted, air can be supplemented into the coating machine through the air supplementing pipe when the air pressure is too small, the problem that the coating machine is inconvenient to open due to too small air pressure is solved, and the problem that raw materials are easy to discharge during pressure regulation is effectively solved.

The invention provides gastric mucosa wound surface protection glue with thixotropy and acid sensitivity and an application of the gastric mucosa wound surface protection glue, and belongs to the field of biological medicine preparations. The gastric mucosa wound surface protection glue with thixotropy comprises the following effective components: a tackifier, an acid-sensitive gelling substance, a thixotropic agent, a plasticizer, a retarder and a pH value regulator, wherein the pH value of the gastric injury mucosa wound surface protection glue is greater than or equal to 7. Curing liquid can also be contained and is used for curing the protection glue at a specified position. The protection glue can form a colloidal film on the surface of ulcer to promote healing of the ulcer. In addition, the product has thixotropy and is kept in a non-flowing state on the wound surface within a short time, then the protection glue is rapidly fixed to the surface of the damaged mucosa through the curing liquid, and the flowing problem of the protection glue is solved. Animal experiments show that the gastric mucosa wound surface protection glue can obviously promote the repair of injured gastric mucosa, so that the gastric mucosa wound surface protection glue has the effects of promoting healing and protecting gastric mucosa injury.

The invention belongs to the technical field of centrifugal fans, and in particular relates to a centrifugal fan with a large air volume and a high pressure head, which can generate a large air volume and a high pressure head in a compact space. It includes: a wheel cover, a wheel disc and a blade; the wheel cover, the wheel disc and the blade form a closed fan impeller, the maximum outer diameter D2 of the fan/the axial length L of the fan is between 2.7 and 3.2; the diameter of the wheel hub D0/fan inlet Diameter D1<0.15; fan inlet diameter D1/fan maximum outer diameter D2>0.8; rated working speed>4000r/min. Compared with the prior art, in order to meet the special requirements of high power density power devices for cooling fans, the present invention provides a flat centrifugal fan with large air volume and high pressure head, which can solve the air flow problem of strengthening heat dissipation in a compact space. .

The invention provides a maritime law violation remote processing method, which comprises the following steps that: S1, a processing system receives a platform function use request submitted by a client, and performs identity authentication; s2, the client side associates ship information; s3, the client initiates a maritime affair illegal information query request to the processing system; s4, confirming the document delivery address on line to confirm the content of the document, and carrying out handwritten signature confirmation; s5, online confirmation of maritime affair illegal behavior notice content and illegal evidence; and S6, signing for the maritime affair administrative punishment decision on line, and identifying the payment two-dimensional code for payment.