41results about How to "Low surface load" patented technology

A retaining member in plastic, suited for retaining at least one line on a support, includes a basic body with a mounting area for mounting on the support and retaining area projecting from at least one side of the mounting area with at least one line seating for at least one line, and a resilient contact area projecting from the side of the mounting area that requires to be placed on the support.

A rotating union communicates with a rotor member and is operable with either compressible or incompressible coolant media that enters the union through a media inlet. The union includes a housing having a counterbore and a tubular carrier member axially moveable in the housing. The union includes a primary seal assembly having a rotating seal member mounted to the rotor member and a non-rotating member mounted to the carrier member and a secondary seal member positioned about the carrier member. The range of the balance ratio of the primary seal assembly is disclosed when the primary seal assembly has imposed upon it a closing force, an opening force or no force.

The invention discloses a solar water heater comprising a water heater body. The water heater body is connected with a solar heat collector which comprises a shell, an inner container, a water inlet pipe, a water outlet pipe and a main controller. The solar water heater is characterized in that the inner container is provided with an optical wave heater, the optical wave heater is composed of a quartz tube, an electric heating wire and a sheath, and the quartz tube is hermetically fixed in the sheath. The solar water heater is simple in structure and capable of realizing water and electricity separation, purifying water and inhibiting bacteria, and has a good popularization value, and service life of the solar water heater is prolonged.

The invention discloses a modularized biological rotating disc multi-serial stage system for deeply treating domestic sewage. According to the components of the modularized biological rotating disc multi-serial stage system, a sewage inlet is formed in a full-immersion biological rotating disc unit; the full-immersion biological rotating disc unit is sequentially connected with a multi-serial stage half-immersion biological rotating disc unit and a settling unit; the disc piece distance of a front-stage biological unit is larger than that of a rear-state biological unit in the multi-serial stage half-immersion biological rotating disc unit; multiple medicine adding points are arranged on a medicine adding unit and located on the full-immersion biological rotating disc unit and multi-serialstage half-immersion biological rotating disc unit respectively; a reflux unit is connected between a tail end water outlet of the half-immersion biological rotating disc unit and a front end sewageinlet of the full-immersion biological rotating disc unit; an up-to-standard water outlet is formed in the settling unit. Through a combined technology, it can be ensured that the COD, ammonia and nitrogen of effluent reach standards, and all indexes of the effluent reach first-level A discharging standards of contaminant discharging standards of municipal wastewater treatment plants (GB189118-2002).

The invention discloses a high power, high frequency and high voltage rectifier transformer. The high power, high frequency and high voltage rectifier transformer comprises at least two iron cores, high voltage winding groups, rectifier bridges, low voltage winding groups and an oil tank and also comprises a supporting frame; the iron cores are arranged on the supporting frame sequentially; gaps are reserved between the adjacent iron cores; the high voltage winding groups which wind the iron cores are connected with the matched rectifier bridges; output of the rectifier bridges is in series connection sequentially and then is output; the low voltage winding groups wind the inside of iron core holes in a penetrating mode; insulating layers are arranged between the high voltage winding groups which wind the adjacent iron cores; insulating layers are arranged between the high voltage winding groups and the low voltage winding groups; the supporting frame is arranged in the oil tank. The high power, high frequency and high voltage rectifier transformer has the advantages of being capable of avoiding high local temperature rise and accordingly reducing the aging speed of materials, extending the service life of transformer oil and meanwhile extending the service life of the transformer.

The invention provides a bogie hearth for a bogie hearth type resistance furnace. The bogie hearth for the bogie hearth type resistance furnace is formed by cast iron which is used for bearing workpieces, a fire-proof layer, a first thermal insulation layer, a second thermal insulation layer, a base plate layer, a heating element, a thermal preservation brick and a bogie hearth body which are arranged from top to bottom sequentially; the base plate layer is formed by a plurality of strip-shaped furnace bottom plates in a splicing mode; the furnace bottom plates are made of heat resisting steel; splicing positions of the adjacent furnace bottom plates are in hasp modes; splicing positions of the furnace bottom plates are provided with thermal expanded and cold contracted gaps; the heating element is bent to be in a wave band shape through belts; the heating element is fixed on the thermal preservation brick. The bogie hearth for the bogie hearth type resistance furnace has the advantages of guaranteeing the furnace bottom temperature; improving the surficial area of the heating element, reducing the surface load of the heating element and prolonging the service life of the heating element due to the fact that the heating element is arranged on bogie hearth; meanwhile avoiding short circuit due to the fact that oxidized iron sheets fall on the heating element and improving the production safety due to the furnace bottom plates.

The invention relates to the technical field of treatment of textile printing and dyeing wastewater, in particular to a combined process for treating textile printing and dyeing wastewater, comprising the steps such as neutralizing, coagulating and precipitating, filtering with an O/A combined biofilter, activating with an active enzyme promoter, adsorbing with a constructed wetland tank, precipitating, sterilizing, and discharging; the combined process provided by the invention has good wastewater purifying effect and enables continuous treatment of batch production wastewater.

The invention discloses an efficient hydraulic circulation clarifier and aims to provide a circulation clarifier which is high in operation stability, reduces chemical and energy consumption, can better adapt to changes of water volume and water quality during actual operation and reduces operation cost of water treatment facilities. The efficient hydraulic circulation clarifier adopts a method implemented according to the following steps: firstly, raw water enters a water inlet pipe at the clarifier bottom, is sprayed into a Venturi tube at a high speed through a spray nozzle and a horn mouth, so that vacuum is formed near the horn mouth in the lower part of the Venturi tube and sucks a large amount of backflow sludge, the backflow sludge and the raw water mix and react fiercely in the Venturi tube, and then a product enters a first flocculation basin and a second flocculation basin; a sludge and raw material mixed solution overflowing from the second flocculation basin is subjected to sludge-water separation in a separation chamber in a settling region, clear water moves upwards and is collected by a water collection tank and drained outward, one part of the settled sludge enters an automatic sludge discharge pipe, and the other part of the settle sludge is sucked by the Venturi tube, enters a reaction system and is recycled continuously.

The invention discloses a method for treating coked wastewater through aerobic and synchronous nitrification and denitrification. Firstly, through culture of nitrobacteria, water comes out from an aerobic pool; NH3-N is less than 1 mg/l; secondly, the volume of sludge is improved so as to increase the volume of sludge of the aerobic pool to 50 to 80 percent; and finally the concentration of dissolved oxygen is reduced; and the concentration of the dissolved oxygen of the aerobic pool is reduced from 3 to 6 mg/l to 1 to 3 mg/l. Mass experiment results show that by a method of reducing the concentration of the dissolved oxygen and improving the volume of the sludge of the aerobic pool, the sludge surface has nitrification reaction in an aerobic state; as the inside of the sludge has thicker floccule, the dissolved oxygen can not penetrate to the inside of the sludge, and the sludge is in an anaerobic state to form denitrification reaction; the removing rate of ammonia nitrogen reaches over 95 percent; the removing rate of total nitrogen reaches 70 percent around; and the method reduces investment, reduces energy consumption and keeps the stable quality of outlet water.

The efficient integral water purifying apparatus includes reaction area, precipitation area, filtering area, clear water area, sludge exhausting pipe, reverse rinse pipe, electric controller and completed closed pressure-bearing body. The water inlet pipe is connected to the reaction area via water distributing pipe, and there are also sludge area and filtering area on two sides of the reaction area separately, inclined-pipe diversion area over the reaction area, inclined-pipe sludge collecting area over the sludge area and separated from the inclined-pipe diversion area with partition board, sludge separating area, etc. Owing to the completed closed pressure-bearing structure, the water purifying apparatus is compact, small, efficient, low in cost and suitable for purification of industrial water and domestic water.

The invention relates to the technical field of textile printing and dyeing waste water treatment and specifically relates to a complex type treatment process of textile printing and dyeing waste water. The process comprises the following steps: neutralizing, coagulating, precipitating, filtering in an O/A complex biological filter tank, activating in an active enzymatic tank, adsorption by introducing waste water into a constructed wetland pool, precipitating, disinfecting, discharging and the like. The complex type treatment process of textile printing and dyeing waste water provided by theinvention has good waste water purification effects and can continuously treat a large amount of production waste water.

The invention provides a boiled water heater. The boiled water heater comprises a water inlet 1, silicon rubber rings 2, a positioning plate 3, a stainless steel tube 4, connecting rods 5, temperature control installation blocks 6, a water outlet 7, a water outlet cover 8, seal rings 9, an electric heating tube 10, a temperature sensor 11 and a dry boiling preventing temperature controller 12, wherein the water inlet 1 and the water outlet 7 are connected by three connecting rods 5; the electric heating tube 10 has a double U shaped structure; the spread length of a heat emitting part of the electric heating tube is more than three times the length of the stainless steel tube 4; and the inner diameter of the stainless steel tube 4 is not more than 24mm. The boiled water heater has a complete structure, low electric heating tube surface load and small water volume, can achieve quicker boiled water outflow, is simple in assembly process, is safe and reliable, has stable properties and long service life and is an ideal instantaneous boiled water heater.

The invention discloses a straight rod detachable type electric heating pipe with a single-end U-shaped pipe, and belongs to the technical field of electric heating pipes. The electric heating pipe comprises a sealed bottom, the top is provided with a high-temperature porcelain head and two metal steel pipes which are different in lengths and are connected side by side, the top of the high-temperature porcelain head is further connected with a binding post, a U-shaped single-port magnesium oxide pipe is arranged inside the pipe body of each metal steel pipe, each U-shaped single-port magnesiumoxide pipe extends towards the bottom from the one-third position of the interior of the corresponding metal steel pipe, double-port magnesium oxide pipes matched with two ends of each U-shaped single-port magnesium oxide pipe are arranged at the two ends of each U-shaped single-port magnesium oxide pipe respectively, the U-shaped single-port magnesium oxide pipes are wrapped with the double-portmagnesium oxide pipes, and an electric resistance wire is paved inside each U-shaped single-port magnesium oxide pipe. According to the electric heating pipe designed in the invention, the heating efficiency is improved, the service life is prolonged, and the electric heating pipe is simple in structure and convenient to maintain.

The invention is suitable for the technical field of solar cells, and provides an annealing method of a crystalline silicon solar cell, and the crystalline silicon solar cell. The annealing method of the crystalline silicon solar cell comprises the following steps: putting a silicon wafer to be oxidized into an annealing furnace; carrying out thermal oxidation treatment on the silicon wafer in the annealing furnace through nitrogen and oxygen, so as to form a silicon oxide layer on the silicon wafer, wherein the proportion range of the oxygen is 75-90%, and the proportion range of the nitrogen is 10-25%; and cooling and annealing the silicon wafer. Therefore, the surface of the silicon wafer can be better passivated, the surface load of minority carriers is reduced, and the photoelectric conversion efficiency is improved. Meanwhile, a more compact silicon oxide layer can be generated, and the PID of the battery piece is improved.

The invention discloses a full-automatic electric heater for a water tank. The full-automatic electric heater comprises U-shaped electrical heating components, a controller, a protection cover, a radiating protection sleeve, a flanged connecting piece and a first temperature measuring device. The controller is mounted in the protection cover. An opening is formed in one end of the protection cover. One end of the radiating protection sleeve is connected with the opening, and the other end of the radiating protection sleeve is connected with the flanged connecting piece. The port of each U-shaped electrical heating component is connected with the flanged connecting piece. The first temperature measuring device is mounted in parallel with the U-shaped electrical heating components, and is at a certain height. The U-shaped electrical heating components and the first temperature measuring device are electrically connected with the controller. The full-automatic electric heater has the advantages of being convenient to disassemble and assemble, long in service life and compact in space.