534results about How to "Into a stable" patented technology

The invention discloses an efficient cooling air conditioner system of a rack-mounted server cabinet. The system comprises a refrigerating module and a cabinet body provided with an air inlet. The refrigerating module conveys cold air to the cabinet body through the air inlet, a partition board is arranged in the cabinet body, one side of the partition board is an air flue, the other side of the partition board is provided with a containing space used for containing a server, the cross section of the air flue is gradually reduced in the flow direction of the air, the partition board is provided with a plurality of air inlets in the flow direction of the air, and the air inlets are provided with arc-shaped flow guide plates. By means of the partition board, the cross section of the air flue is gradually reduced in the flow direction of the air, so that the cold air entering air gaps is equal in speed and amount, and uniform heat dissipation is achieved. Due to the facts that a sound-insulating material layer is arranged on a shell, arc-shaped transition plates are arranged on the corners of the cabinet body and the arc-shaped flow guide plates are arranged on the air inlets, noise is lowered, and the system is low in noise during work.

The invention discloses a gating system of a large-section iron casting for an medium pressure external cylinder in a steam turbine; the gating system comprises a weighing ladle, a sprue, a runner and an ingate, the runner consists of an upper runner and a lower runner, a refractory ceramic filter is arranged between the upper runner and the lower runner, the minimum sectional area ratio of the sprue, the runner, a transition sprue, a transition runner and the ingate is 1.2:1.34:1:1.07:1.24; the sprue, the upper runner and the lower runner are arranged at the middle part of the casting, and the ingate of an ingate is arranged at the inner wall of an axle hole of the casting; and the gating system of the structure mainly plays a role in buffering, decompressing and steady entry of melted iron, the molding sand in the scour cast is avoided, the casting is heated evenly, with the advantages of being not easy to be mingled with impurities, carry sand, produce air gaps and cracks.

The invention discloses an air-lar machine negative pressure sucking-off plant, which comprises an exhaust inlet, an air intake duct, an induced-draught fan and an exhaust pipe, wherein the exhaust inlet is connected to the bottom end of an output curtain and is also connected with the air intake duct; the bottom end of the air intake duct is connected with the induced-draught fan; and the side of the induced-draught fan is connected with the exhaust pipe. The air-lar machine negative pressure sucking-off plant of the invention generates downward artificial flowing air flow between the output curtain and a hot milling, thereby offsetting the upward air flow generated by the hot milling at high temperature, and enabling a fibre web to enter the hot milling steadily. The plant is simple and practical, and the exhaust pipe is a PPR plastic tube with the diameter of 150mm; the connection part of the exhaust pipe is connected by a PPR interface and a bend tube, thereby being convenient to assembly and disassembly; and a filter is arranged on the air inlet of the induced-draught fan to filter the remained cotton on filter condense cotton so as to prevent the plug of the induced-draught fan.

The invention provides a supersonic velocity axisymmetrical boundary layer wind tunnel which comprises a front transition section (1), a stabilizing section (2) and a spray pipe experiment section (3), wherein the front transition section (1) is used for introducing air flows and carrying out primary rectification on the air flows; the stabilizing section (2) is connected to the downstream of the transition section (1) and used for carrying out secondary rectification on the air flows; the spray pipe experiment section (3) is connected to the downstream of the stabilizing section (2) and is in a fan-shaped axisymmetrical structure relative to a rotation axis (O); the spray pipe experiment section (3) comprises an outer peripheral wall (3a), an inner peripheral wall (3b) and two side walls (3c and 3d) connected with the outer peripheral wall (3a) and the inner peripheral wall (3b); transparent windows are at least formed on the side walls; the spray pipe experiment section (3) also comprises a spray pipe part (31) which is in a single-side expansion spray pipe structure and an experiment part (32) which is positioned on the downstream of the spray pipe part and can be used for carrying out observation and an optical non-contact test on an axisymmetrical boundary layer flow field formed in a spray pipe experiment section so as to research the flow field characteristics of the supersonic velocity boundary layer.

The invention discloses quantitative filter paper, comprising an inflow layer, a middle layer and an outflow layer. The inflow layer is made by forming, pressing and drying slurry 14 DEG SR to 17 DEG SR in beating degree; the middle layer is made by forming, pressing and drying pulp 19 DEG SR to 21 DEG SR in beating degree; the outflow layer is made by forming, pressing and drying pulp 23 DEG SR to 25 DEG SR; the inflow layer, the middle layer and the outflow layer are made of the pulp of same material. The invention further discloses a preparing method of and application of the quantitative filter paper. The layers have different beating degrees of the pulp, the different void distributions of the insides are ensured, and high filtering speed, high precision and high stability are integrated; the preparing method ensures that the fibers in the layers are tightly tangled together, no evident interface occurs, the three-layer composite filter payer manufactured with the pulp is in a complete structure, and smoothness of the separating process is ensured.

The invention relates to an antibiosis acrylic fiber and a preparation method thereof. Firstly, an acrylic fiber spinning solution is extruded by a spinning nozzle, solidified, stretched by a water bath and washed to obtain fibers, and the fibers are dipped into solution which contains an organic antibacterial agent and is subjected to thermal stretch and postprocessing to obtain the antibiosis acrylic fiber. Finally, a product mainly consists of the acrylic fiber and the organic antibacterial agent, the acrylic fiber and the organic antibacterial agent are combined through an ionic bond and/ or hydrogen bond; the content of the organic antibacterial agent in the product is 0.2-0.5wt%, the antibacterial rate for staphylococcus aureus, colibacillus and candida albicans is greater than or equal to 99%, the antibacterial rate after washing is carried out for 50 times is greater than or equal to 99%, a filament number is 0.5-5.0dtex, breaking strength is 2.0-.2cN/dtex, the antibiosis acrylic fiber is the short fiber, filament or tow, and the antibiosis acrylic fiber is applied to fields including pure spinning yarns, commingled yarns, knitted fabric, woven fabric or nonwovens. The preparation method for the antibiosis acrylic fiber has the advantages of simple technology, low cost and convenience and flexibility in operation.

The invention provides an optimized process for manufacturing a saloon car clutch pressure plate casting on a vertical modeling production line. The process comprises the following steps of mulling sand, modeling, melting burden, inoculating iron, pouring, cooling, opening case and clearing casting, wherein in the modeling step, two and more raw castings are horizontally and asymmetrically arranged; a pouring iron liquid enters into a straight pouring channel through a pouring cup and an upper cross channel; and the straight pouring channel enters into a lower cross channel by passing through the middle of a casting cavity and then asymmetrically enters into the cavity from the lower side of the cavity. The pressure plate casting produced by using the process of the invention has a single-cast coupon tensile strength equal to or more than 250 MPa, a casting body tensile strength equal to or more than 200 MPa and the casting body hardness from 170 to 241HBS. The product metallographic structure mainly uses the A type graphite; the length of the graphite is 4 to 6 level; the matrix contains more than 95% of small pearlites and less ferrites; and all the parts of the casting have no casting flaw and meet the technical requirements of the saloon car clutch pressure plate casting.

The invention discloses a smelting process of nitrogenous high alloy heat-resistant steel ZG3Cr24Ni7N, which includes preparing a steel ladle, primary smelting in an electric arc furnace, refining the steel ladle and blowing nitrogen from the bottom of the ladle. The nitrogen which is rich in sources and low-price is used as material, the nitrogen is blown to molten steel for nitrogen alloying, and accordingly production cost of nitrogenous steel is lowered greatly. Alloy recovery efficiency is improved by reasonable processes, so that the problem that chemical components are difficult to control is solved, and the metallurgical quality of molten steel is improved.

The invention provides a circuit board automatic loading device. The circuit board automatic loading device includes a conveying machine, an unloading device and a storage device; the unloading device includes an unloading box and a first lifting motor arranged under the unloading box; the top of the unloading box is opened; an output opening for allowing a single circuit board to pass through is formed in the bottom of the unloading box; a pushing device for pushing the circuit board out of the output opening is arranged on the bottom of the unloading box; the storage device includes a storage box and a second lifting motor; a drive rod of the second lifting motor is fixedly connected to an operation table; a groove is formed in the operation table; the storage box is arranged in the groove; partition plates for holding the circuit boards are horizontally arranged in the storage box; and the partition plates are in butt joint with the output opening. The beneficial effects of the invention are that the uniformity and the stability of circuit board automatic loading is good.

The invention discloses a spraying type evaporator. The spraying type evaporator comprises a heat exchanger and a gas-liquid separator. The gas-liquid separator comprises a shell, a liquid inlet connection pipe extending into the shell, a gas return opening connection pipe extending into the shell, and a connector base which is arranged at the bottom of the shell and connected with a connection pipe. The inlet of the liquid inlet connection pipe is connected with a refrigerant outlet of a throttling mechanism of the previous stage. A partition plate is arranged between the liquid inlet connection pipe and the gas return opening connection pipe. The outlet of the liquid inlet connection pipe and the inlet of the gas return opening connection pipe are separated from each other through the partition plate. The gas-liquid separator is arranged, gas-liquid separation is conducted on throttled refrigerant, it is ensured that the refrigerant entering the heat exchanger is in a pure liquid state, liquid distribution of a liquid distributor can be more uniform, and therefore the heat exchange efficiency of the whole heat exchanger is improved, the heat conduction temperature difference is reduced, the energy efficiency ratio of running of a refrigerating unit is increased, and the aim of saving energy is achieved.

The invention discloses an electrical control cabinet which comprises an electrical control cabinet body. An air outlet hole is formed in the inner wall of the right side of the electrical control cabinet body, a dustproof net is movably arranged in the air outlet hole in a sleeved mode, the dustproof net is fixed to the right side of the electrical control cabinet body in a threaded mode, and a V-shaped protection plate is arranged above the electrical control cabinet body. The bottom of the V-shaped protection plate is fixedly provided with a fixed block, and the top of the electrical control cabinet body is fixedly provided with a rectangular pipe which sleeves the fixed block in a sliding manner. The electrical control cabinet is reasonable in design, the cooling fan can be automatically started to dissipate heat when the temperature in the electrical control cabinet body is higher than the preset temperature, the heat dissipation efficiency is improved, the dustproof plate can be conveniently and continuously vibrated left and right in the heat dissipation process, and dust particles attached to the right side of the dustproof plate can be effectively vibrated off in cooperation with the inclined arrangement mode of the dustproof plate; the blocking phenomenon is relieved, normal and stable entering of air is guaranteed, the dustproof plate can be taken out to be cleaned, and the use requirement is met.

A display device includes a display device body, a display portion arranged on the front side, a light source, a light source substrate, a light guide plate having a light incident surface, and a heat sink arranged to be opposed to the light incident surface of the light guide plate between the light guide plate and the light source substrate, including a light source arrangement hole configured to arrange the light source and a spacer portion arranged to be opposed to the light incident surface of the light guide plate between the light guide plate and the light source substrate and keeping an interval between the light incident surface of the light guide plate and the light source at a prescribed interval.

The invention discloses an air inlet flow rectifier for a bag-type dust collector. The air inlet flow rectifier comprises an air inlet pipe arranged on the side face of an ash hopper of the dust collector, wherein the air inlet pipe is internally provided with a plurality of porous flow equalization boards in the ladder-shaped distribution. The porous flow equalization boards of the air inlet pipe are designed to be ladder-shaped, and thus the airflow velocity of a filter bag chamber is quickly reduced, and the airflow direction is changed so that airflow is uniformly distributed and dusty air is uniformly guided in the ash hopper; the airflow is prevented from directly washing filter bags, so that the service life of each filter bag is prolonged, and the running resistance of the bag-type dust collector is reduced; the inertial setting volume of dust in the dust hopper is increased, the absorbing capacity of the dust on each filter bag is reduced, and same filtering loading is achieved for each filter bag; the filtration resistance of the filter bags and the emission of dusty gas concentration at an outlet are reduced, and the service life of each filter bag is prolonged.

The invention discloses a small-caliber rimfire cartridge magazine, which comprises a magazine body. The upper end of the magazine body is provided with a magazine filler; the lower end of the magazine body is provided with a magazine bottom cover; a follower is arranged in a magazine case of the magazine body; a magazine spring is arranged between the follower and the magazine bottom cover; in a normal state, the follower is located right below the magazine filler; a guiding shaft is horizontally inserted into the follower; the follower can rotate along the axis of the guiding shaft; two ends of the guiding shaft are respectively inserted into guiding chutes symmetrically formed in the left side wall and the right side wall of the magazine body; the guiding shaft can slide along the two guiding chutes to guide the movement of the follower; the guiding chutes in the left side wall and the right side wall of the magazine body are corresponding to the magazine in shape. The small-caliber rimfire cartridge magazine is more convenient and reliable in loading and ammunition feed.

The invention relates to telegraph pole mounting equipment, in particular to cement telegraph pole rapid conveying and mounting equipment. According to the cement telegraph pole rapid conveying and mounting equipment, cement telegraph poles do not need to be conveyed many times, efficiency is high, and vertical standing of the equipment saves the time and labor in the mounting process. The cement telegraph pole rapid conveying and mounting equipment comprises a mounting plate, first supporting seats, wheel shafts, tires, a supporting plate, a fixing plate, a second supporting seat, a first guiding rail, first guiding sleeves, first clamping plates, first screws and the like. The first supporting seats are mounted on the left side, right side, front side and rear side of the lower side of the mounting plate in a welded mode, the wheel shafts are connected to the lower sides of the first supporting seats in a rotating mode, and the tires are connected to the wheel shafts. According to the cement telegraph pole rapid conveying and mounting equipment, the effects that the cement telegraph poles do not need to be conveyed many times, the efficiency is high, and vertical standing of the equipment saves the time and labor in the mounting process are achieved.

The invention discloses a shaft seal electric heater system and method preventing steam seal journal sticking of a 1000MW ultra supercritical turbine. The shaft seal electric heater system comprises an ultra supercritical turbine shaft seal system. The ultra supercritical turbine shaft seal system comprises a shaft seal steam supply mains. The shaft seal steam supply mains is connected to an auxiliary steam system through an auxiliary steam pipeline. A steam supply regulation valve, a shaft seal steam electrically operated valve and a check valve are mounted on the auxiliary steam pipeline. Ashaft seal electric heater system is arranged between the check valve and the steam supply regulation valve and comprises a shaft seal electric heater, a front shaft seal electric heater electricallyoperated valve, a rear shaft seal electric heater electrically operated valve, a shaft seal electric heater bypass valve, a drain valve, an in-situ temperature gauge and a thermocouple. A drain pipe is connected with the auxiliary steam pipeline. The drain valve is arranged on the drain pipe. The shaft seal steam temperature is controlled about 300 DEG C, the shaft seal temperature requirement ismet, and steam seal journal sticking of the ultra supercritical turbine of a Siemens technology is prevented.

The invention relates to the field of instant food, in particular to an instant two-layer food forming method. The instant two-layer food forming method comprises the following steps: 1) pressing a wrapper and cutting the wrapper into a plurality of slender flour tapes; 2) conveying uncooked or cooked stuffing to the position of the flour tapes; 3) feeding the stuffing to one side of the flour tapes, wherein an angle formed between the stuffing conveying path and the plane of the flour tapes is 45-135 degrees when the stuffing is fed to the flour tapes; 4) firstly pushing the other side of the flour tapes into forming holes of an outer forming template and an inner forming template, wherein the middle portions of the flour tapes wrap the stuffing at the moment to realize preliminary forming; 5) sealing the portions, which wrap the stuffing, of the flour tapes and simultaneously performing pattern printing forming to the flour tapes with sealed portions; 6) placing the formed instant two-layer food on a conveying belt for conveying. By improving the included angle between the stuffing and the flour tapes when the stuffing is filled into the flour tapes, the situation that the stuffing cannot be put in the flour tapes is avoided, the contact surface between the stuffing and the flour tapes is larger, the integrity of the stuffing is better, the stress surface of the flour tapes is larger and the flour tapes are prevented from being damaged.

The invention relates to a surface flow artificial wetland and particularly discloses an improved surface flow artificial wetland for treating overland runoff pollutants of a farmland. The improved surface flow artificial wetland comprises a plant absorbing region and a final-settling water collecting region, wherein a water permeable wall is arranged between the final-settling water collecting region and the plant absorbing region; and the final-settling water collecting region is provided with a water inlet channel, and an openable overflow channel is communicated to the water inlet channel. The improved surface flow artificial wetland for treating the overland runoff pollutants of the farmland has the advantages that (1) the occupied area of the improved surface flow artificial wetland is reduced, and the dependence of the constructed wetland on a terrain is greatly reduced; (2) the problem that the removal rate of the pollutants is instable due to space-time non-uniformity of rainfall is solved; and (3) suspended pollutants such as silt are intensively deposited in the final-settling water collecting region, so that the silt of the whole artificial wetland does not need to be frequently removed, and the maintenance cost is greatly lowered.

The invention discloses a water lifting and supporting device. The device comprises a table type supporting table, guide rails, air bags, a gas pipe and a gas control unit. The table type supporting table comprises a table board and supporting pipes located on the lower portion of the table board; one end of each supporting pipe is fixedly connected with the table board, and a pipe hole is formed in the position, corresponding to the table board, of each supporting pipe; the guide rails stretch into the supporting pipes through the pipe holes and stretch out of the other ends of the supporting pipes; blocking pieces are welded to the upper ends of the guide rails, and the air bags are located on the inner sides of the supporting pipes; the bottoms of the air bags are connected with the supporting pipes through ropes, and springs are connected between the air bags and the bottom of the table board; the gas control unit is fixedly connected with the upper ends of the guide rails, and the gas inlet end of the gas control unit is connected with a gas pump through the gas pipe; and the gas outlet end of the gas control unit is connected with air inlets of the air bags through the gas pipe. The water lifting and supporting device is mainly applied to indoor small and narrow environments with pools, launching and water output operation of heavy objects can be rapidly and conveniently achieved, and manpower and material resources are saved.

The invention provides a helical flow dephosphorization reactor. The helical flow dephosphorization reactor comprises a pre-backwashing zone, a gas stripping lifting zone, a water discharging zone, a filtering zone, a water feeding zone, a backwashing zone and a solid-liquid separation zone from bottom to top; the pre-backwashing zone comprises an inverted bench body, and an escape tube is arranged below the inverted bench body; the gas stripping lifting zone comprises a gas stripping tube, and the lower end of the gas stripping tube is provided with a gas stripping gas inlet tube; the water discharging zone comprises a filtered water collecting tube, and the filtered water collecting tube is coaxially arranged outside the gas stripping tube; the filtering zone comprises a lower cylinder, and the lower cylinder is coaxially arranged outside the filtered water collecting tube; the water feeding zone comprises a water feeding tube, and the water feeding tube is connected with the upper end of the lower cylinder; the backwashing zone comprises a backwashing air tube, the backwashing air tube is connected with the upper end of the gas stripping tube, and an efficient stripping tube is connected with the top of the gas stripping tube; and the solid-liquid separation zone comprises an upper cylinder, and the upper cylinder is connected with the top of the lower cylinder. The reactor has the advantages of continuous running, tending towards a laminar flow state, small dead zone area, high filtering and backwashing efficiency, reasonable and concise structure, convenient processing and convenient popularization application.