63results about How to "Normal flow" patented technology

The invention discloses a centrifugal fan impeller capable of adjusting splitting vanes, and aims at solving the problems that the common working conditions of a current fan product in use do not match with the rated working conditions, thus the service efficiency of a fan is low, and the efficient operation range of the fan is reduced. The centrifugal fan impeller capable of adjusting the splitting vanes is characterized in that a circular guide ring and a wheel disc form a revolving pair; a main fixing frame which is provided with a circular guide ring fixing device is fixed to the wheel disc; the circular guide ring is connected to n upper fixing devices for the circular ring and the splitting vanes; the splitting vanes are connected to a wheel cover through upper fixing devices for the wheel cover and the splitting vanes, and the splitting vanes are connected with the wheel disc through upper fixing devices for the wheel disc and the splitting vanes; each upper fixing device for the circular ring and the splitting vanes is connected to the corresponding upper fixing device for the wheel disc and the splitting vanes through a splitting vane adjusting part. According to the centrifugal fan impeller, the circular guide ring can be rotated to drive the splitting vane adjusting parts to swing so as to adjust the angles of the splitting vanes, thus the maximum operation efficiency can be obtained according to different working conditions, and the maximum operation efficiency which can be achieved only under the rated working conditions can be obtained by a centrifugal fan under the off-rating conditions.

The invention discloses a multifunctional composite sewage purifier, which is composed of a centrifugation device and a sedimentation filtration separation device connected and communicated with the water outlet end of the centrifugation device. The centrifugation device is provided with a sewage inlet, a power transmission group, a centrifugation rotor driven by the power transmission group, and an aeration device. The sedimentation filtration separation device is provided with a filtering layer and an exhaust valve. The multifunctional composite sewage purifier is sewage purification equipment used for treating the sewage generated in production and life, and is formed by compositing sewage treatment devices at two stages and with different functions according to sewage characteristics. The sewage purifier integrates multiple functions, can play a role of centrifugal sedimentation separation or flotation separation, also accelerates the uniform aeration stirring of added additives and sewage, and accelerates various physiochemical processes as well as the sedimentation filtration adsorption efficiency.

The invention relates to an air tunnel fast braking test system which is arranged in a test space and comprises an air door braking system, an air quantity control system, a fan, a static pressure chamber, a main air channel and a movable air door, wherein the air door control system is connected with the air quantity control system and the static pressure chamber respectively; the air quantity control system is connected with the fan; the fan, the static pressure chamber and the main air channel are sequentially arranged to form an airflow channel; the an air tunnel fast braking test system is characterized in that the air tunnel fast braking test system also comprises a secondary air channel which is communicated with the static pressure chamber; an air guide plate used for communicating the secondary air channel and the test space is arranged on an air outlet of the secondary air channel; the movable air door is arranged in the static pressure chamber; a supporting and adjusting mechanism used for supporting and adjusting the position of the movable air door is also arranged in the static pressure chamber; and an air quantity adjustor is arranged on an air outlet of the main air channel. The air tunnel fast braking test system is simple and convenient in operation and high in safety.

The invention discloses an overwater pipeline heat preservation device. The overwater pipeline heat preservation device comprises a pipeline. A graphene heating thin film is laid on the surface of the pipeline. A photovoltaic cell is arranged outside the graphene heating thin film. The graphene heating thin film is electrically connected to the photovoltaic cell. According to the overwater pipeline heat preservation device, by using the characteristics that a graphene material is high in strength and high in heat conduction coefficient, the heating amount is increased, the surface of the pipeline is further protected, and the overwater pipeline heat preservation device has the beneficial effects of being reasonable in structural design, easy to manufacture, convenient to use and install, low in cost, long in service life and the like.

The invention provides a composition as well as a preparation method and application thereof. The composition comprises at least one polypeptide as shown in SEQ ID NO: 1 to 4, and nattokinase. The preparation method comprises the following steps: extracting a mixture comprising natto and germinal soybean by a buffer solution with the pH value being 4 to 5, so as to obtain an extracting solution; then filtering the extracting solution through a micro-filtration membrane with the molecular weight cut-off being greater than 3000Da, so as to obtain a filtered fluid; performing salting-out on the filtered fluid. The composition has the functions of reducing high blood pressure and blood viscosity, thereby having the effects of preventing and treating cardiovascular and cerebrovascular diseases;meanwhile the composition has the functions of recovering damaged pancreatic tissue and promoting regeneration, thereby being capable of preventing and treating diabetes; and the composition can be applied to the preparation of medicine or health care products for treating cardiovascular diseases and diabetes.

The invention relates to the technical field of a test paper arranging device, and discloses a linked test paper arranging device for college entrance examination students capable of classification arrangement. The device comprises a table body, the inside of the table body is a cavity, the inner wall of the left side of the table body is fixedly connected with a transverse partition plate, a classification arrangement mechanism is arranged between the bottom of the inner wall of the table body and the transverse partition plate, the left side of the table body is provided with a driving mechanism, the top of the transverse partition plate is provided with a pressing type arrangement mechanism, a linked heat dissipation mechanism is disposed between the right side of the inner wall of thetable body and the classification arrangement mechanism, and a first square groove is formed in the right side of the table body and located on the upper portion of the transverse partition plate. Byarranging the classification arrangement mechanism, the pressing type arrangement mechanism and the linked heat dissipation mechanism, the device achieves classification arrangement of a plurality ofdifferent ways, does not occupy space, and does not damage test papers, so that the college entrance examination students are emotionally stable and convenience is provided for learning.

The invention discloses a preparation device and method of fully-synthetic rail transit gear oil, and relates to the technical field of gear oil preparation. The preparation device comprises a tank body, wherein the tank body comprises an outer tank and an inner tank, a heating pipe is arranged on the outer surface of the inner tank corresponding to a cavity, a liquid collecting box is arranged on the upper surface of the tank body, a first motor is fixedly installed on the upper surface of the liquid collecting box, a liquid outlet hole is formed in the position, corresponding to the liquid collecting box, of a rotating shaft, a first liquid pumping mechanism is arranged on the left side face of the liquid collecting box, three filtering mechanisms are sequentially arranged between the inner walls of the inner tank from top to bottom, and the upper surface of an evaporation box communicates with the heating pipe through an air outlet pipe. According to the preparation device, filtering effect is better, filtered impurities can be cleaned without shutdown, and production efficiency is improved; the inner tank is heated through discharged evaporated water, condensation of base oil is effectively avoided, and normal flowing of the base oil is ensured; and discharged steam can be purified, so the use of the device is more environmentally friendly.

The invention provides neutral ink and a ball-point pen containing the same. The neutral ink comprises, by weight, 6.0-10.0 parts of pigments, 1.5-3.0 parts of polymeric dispersants, 0.2-1.0 part of thickening materials, 0.01-0.1 part of lubricants, 5.0-10.0 parts of cosolvents, 10.0-20.0 parts of humectants, 0.1-0.3 part of sterilizing agents, 0.5-2.0 parts of pH (potential of hydrogen) regulators and 53.6-76.7 parts of deionized water. The neutral ink adopts specific thickening materials, has shear thinning and tensile hardening viscosity properties and is good in leak resistance and excellent in low-temperature writing property.

The invention discloses a heat power system suitable for deep peak adjusting of a heat supply unit. The heat power system comprises a heating element, a high-pressure cylinder, a high bypass valve, amedium-pressure cylinder, a low-pressure cylinder, a low bypass valve, a heat supply network heater, a heat supply network heater steam source pipeline, a heat supply network drain pump, a condenser,a condensate water pump and a condensate water precision treatment device. The high bypass valve and the high-pressure cylinder are connected in parallel, one end of the high bypass valve is connectedwith a superheater outlet of the heating element, and the other end of the high bypass valve is connected to a reheater inlet of the heating element. The low bypass valve is connected with the medium-pressure cylinder and the low-pressure cylinder in parallel, one end of the low bypass valve is connected with a reheater outlet of the heating element, and the other end of the low bypass valve is connected to a condenser inlet. The other end of the condenser is sequentially connected with the condensate water pump and the condensate water precision treatment device. One end of the heat supply network heater communicates with the steam exhaust end of the medium-pressure cylinder through the heat supply network heater steam source pipeline, and the other end of the heat supply network heateris connected between the condensate water pump and the condensate water precision treatment device through the heat supply network drain pump. A heat supply network heater standby steam source pipeline connected between the low bypass valve and the heat supply network heater is further included.

The invention discloses a molten aluminum runner so that the problem that time and labor are wasted since impurities such as aluminum oxide and calcium oxide are manually cleaned away in the prior art can be solved. The molten aluminum runner comprises a settling basin and flow channels connected to two corresponding sides of the settling basin. The bottom of the settling basin is lower than the bottoms of the flow channels. A baffle perpendicular to the flow channels in direction is arranged in the middle of the settling basin. The bottom of the baffle is higher than the bottom of the settling basin but lower than the bottoms of the flow channels. The impurities such as the aluminum oxide and the calcium oxide are blocked on one side of the settling basin through the baffle and cannot enter follow-up casting, and the quality of aluminum bars is guaranteed; besides, after all molten aluminum flows out, the impurities can sink to the bottom of the basin and then cleaned away in a unified mode, the impurities are cleaned away more conveniently compared with the traditional mode that the impurities are cleaned away while casting is carried out, and a great amount of labor force is saved.

The invention discloses a novel flue gas desulfurization method, and belongs to the technical field of flue gas treatment. The novel flue gas desulfurization method comprises a desulfurization device,wherein the desulfurization device comprises a large annular pipe and a small annular pipe, the outer side wall of one end of the large annular pipe is communicated with a gas inlet pipe, the inner side wall of the other end of the large annular pipe is communicated with a gas guide pipe, the end, which is away from the large annular pipe, of the gas guide pipe is communicated with the small annular pipe, and the front outer wall of the end, which is away from the gas guide pipe, of the small annular pipe is communicated with a gas outlet pipe. A desulfurization ball mechanism is arranged incombination with dry desulfurization and wet desulfurization, desulfurization can be effectively and quickly carried out on the flue gas, and the desulfurization efficiency is high. With the arrangement of the large annular pipe and the small annular pipe, the flue gas flowing path can be prolonged, and the desulfurization effect can be improved. In addition, the structure is simple, and the occupied area is small. The drying ball mechanism is further arranged, the flue gas can be dried, the flue gas can be heated, and the flue gas is not subjected to significant cooling during the purification process.

The invention relates to a retracting and cleaning device for brain surgery and a using method thereof. The retracting and cleaning device comprises a liquid suction rod and a first supporting plate for supporting a thumb is arranged on the outer wall of the liquid suction rod. The device further comprises a supporting mechanism arranged on the side wall, deviating from the first supporting plate,of the liquid suction rod; the supporting mechanism is used for supporting the index finger of the user; a third supporting plate is arranged at the bottom of the supporting mechanism and is used forsupporting the middle finger. According the invention, the brain tissue is pushed aside through the liquid suction rod, so that an operation gap is rapidly and conveniently pulled open and traction-free operation is realized; the situation of brain tissue necrosis can be effectively avoided and non-destructive traction is realized; and due to the arrangement of the supporting mechanism, a doctorcan operate more smoothly and does not feel hurt by hands.

A cooling device for dye production is disclosed. The cooling device comprises a tank body, the upper end of the tank body is provided with an electric motor through a first bracket, the output end ofthe motor is connected with a rotating rod through a coupling, a stirring rod is connected to the rotating rod, the stirring rod is positioned on the inside of the tank body, and the end of the stirring rod away from the rotating rod is connected with a connecting rod, the upper end of the connecting rod is connected with a first annular pipe, the first annular pipe is embedded in the lower end of the second annular pipe, the upper end of the second annular pipe is connected with the top end of the inner wall of the tank body through a second bracket. In the use process of the device, the dyecan be cooled in the water flow process, and the electric motor drives the stirring rod to rotate. The stirring rod can make the dye continuously move inside the tank body, so that the cooling effectof the device is good.