156results about How to "Large ventilation" patented technology

The invention discloses a pilotless helicopter, comprising a main rotor system, a swash plate device, a drive system, a starting device, an engine, a body frame, a tail rotor device, a landing device and at least one auxiliary lift, anti-twisting force and cooling functional device, wherein the auxiliary lift, anti-twisting force and cooling functional device comprises ducts and a lift fan, the lift fan is annularly embraced in the ducts, and the ducts are arranged symmetrical about a central axis which is the advancing direction of the pilotless helicopter; the ducts are fixed above the engine, and an air guide passage is designed below the ducts and guides air to a cylinder of the engine; and the swash plate device is a four-channel hybrid control swash plate device. A part of additional lift and anti-twisting force are provided for the pilotless helicopter by using the power of the cooling engine, so that the pilotless helicopter has larger effective load and higher efficiency. Four steering engines of the four-channel hybrid control swash plate device are arranged in a manner of backing up each other, so that the stability is improved.

The present invention provides a cooling system, which is referred to herein as a slider vent, for dwellings or residences that have a sliding patio door or the like. In an embodiment of the invention, the slider vent occupies approximately six (6) inches of the sliding door track and uses two centrifugal fans to exhaust hot interior air within the dwelling directly to the exterior of the residence and draws in cooler exterior air from outside the dwelling via an adjacent open window. The electrical components within the unit are enclosed by an inner housing for consumer safety and to protect them from the elements, and ventilation flows through an assemblage of moveable shutters that remain closed when the fans are not in operation. The unit is powered by a household power source via a plug connected at the bottom of the unit on the interior side. The unit also has a variable speed control to adjust air flow, located in the center of the unit, also on the interior side. For security purposes, the slider vent locks into the door frame in the same fashion as the sliding patio door, and also allows the sliding door to lock into the unit's frame to create a solid barrier to prevent unwanted entry or intrusion. The unit may also include a weather strip that produces a tight seal between itself and the sliding door and prevents the outside elements from penetrating through the crack. The unit may also include insulation to produce a tight seal when the fans are not in use to prevent the loss of air through the system while not in operation.

The invention relates to a solid fermentation bioreactor. The reactor comprises a reaction casing , and a porous material layer separator plate (5) is arranged in the reaction casing to divide the reaction casing into an upper fermentation chamber (1) and a lower layer air chamber (3); the reactor also comprises a fermentation control system for controlling a stirring unit, a temperature control unit, a humidity control unit, an air feed control unit and a fermentation tail gas detection and processing unit, so as to realize real time monitoring and control on temperature, humidity, ventilation, stirring and tail gas. The invention realizes totally enclosing on-line fermentation and prevents extraneous pollutants from entering; the tail gas detection system carries out real time on-line monitoring on fermentation gas, and tail gas is treated by tail gas recovery equipment to protect the environment, thereby realizing coupling operation of temperature, humidity, ventilation, stirring and tail gas control system and ensuring necessary essential factors for microbe growth.

The air exchanger includes air exhaust cavity, air sucking cavity and volute rotating driving mechanism. The air exhaust cavity is provided with volute, eccentric blower and motor, as well as exhaust port to outdoor and one or several exhaust ports to indoor. The air sucking cavity has air sucking port to the outdoor paired with the exhaust port to outdoor and air sucking ports to the indoor paired with the exhaust ports to indoor ,as well as air door for opening and closing the air sucking ports, and is communicated with the inlet port to the volute. The present invention can exhaust stagnant air from indoor and suck in fresh air from outdoor without altering the rotation direction of blower, has high wind pressure, great air exchange amount and high speed, and can realize the air exchange control to single or several rooms.

The invention relates to a dispersion corundum-spinel air brick and a preparation method thereof. According to the technical scheme of the dispersion corundum-spinel air brick, the dispersion corundum-spinel air brick is composed of 60-70 wt% of densely sintered corundum particles or electrically melted white corundum particles, 25-35 wt% of densely sintered corundum fine powder or electrically melted white corundum fine powder and 2-7 wt% of magnesia micro powder or chrome oxide micro powder. The raw materials are mixed, a binding agent, polycarboxylate and water are added, and castable is obtained through stirring; a polymeric sponge is fixed to the bottom of an air brick mold, the castable is added for vibration forming, curing and demolding are conducted, and an air brick blank is obtained; the air brick blank is placed in a high-temperature furnace, subjected to heat preservation for 1-3 h at 600-800 DEG C and subjected to heat preservation for 3-5 h at 1500-1700 DEG C; and the air brick blank is cooled to the room temperature with the furnace, and the dispersion corundum-spinel air brick is obtained. The dispersion corundum-spinel air brick and the preparation method thereof have the characteristics of simple process and low cost, and the prepared dispersion corundum-spinel air brick is even in through hole distribution, good in integrality, high in strength and good in thermal shock resistance.

The invention provides a generally X-shaped utility garment comprising two main straps that form an ‘X-shape’ on a wearer's back and a cross-strap above the X shape to stabilize the garment on the wearer's body. The garment, referred to herein as a strapvest, provides a plurality of pockets and / or receptacles for carrying items the wearer needs to access easily. Its receptacles can be detachable, and a user can select which receptacles to have on the strapvest according to the wearer's immediate needs. It can be adjustable in size to fit a wide range of wearers, and can be adapted to carry many different types of items that are needed for work or recreation, by a combination of built-in pockets and other built-in carriers and optional modular receptacles that can be detachably mounted on the straps of the strapvest. It is more convenient for accessing the stored items than a backpack, which needs to be removed to access its contents; it carriers more and potentially heavier items than a utility belt without a tendency to pull the wearer's pants down; and it can be worn with a variety of different types of weather-related or protective outerwear because of its open design and potentially adjustable size.

A device (10) for processing data (3), which were obtained from a medical device suitable for imaging the lungs or the thorax, particularly an electrical impedance tomography device (30), provides improved visualization of a three-dimensional thoracic dimension (350) of the lungs. A characteristic contour (34, 350) is determined continuously by continuous reference to a previously determined outer contour (905) of the lungs as a comparison variable and is outputted, provided and visualized as an output signal (35).

The invention provides a technology for producing edible fungus particle liquid strains. The technology is characterized in that in the technology for producing the edible fungus particle liquid strains, it is developed successfully by designers that the throughput of edible fungus particle liquid strain culture solution is added, a stirrer is arranged in a ventilation fermentation tank, the mycelium pellet particle size is below 0.5 mm, and the inoculum size is 50% that of ordinary liquid strains. If widely applied, the technology will certainly generate remarkable economic benefit and social benefit.

The invention discloses a cell suspension culture tank and its usage. Compared with current flat base biological tank, it is characterized by wide- bodied culture tank, converse flat conical bottom, larger culture medium area, benefit for oxygen absorption and carbon dioxide discharge, reduced cell inoculation volume, much lower level of air injection, prolonged air bubble course, regular agitation that makes culture medium contacts with tank wall, and generates small cutting force and mechanical force, and benefit for surface area enlargement, air aeration amount and improved mixing. The disposal plastic or glass shake flask suspension culture system using no complicate control tower and relevant probe, is developed by using design in this invention. The invention aslo relates to large- size industrial biological reactor which is drove by stirring paddle.

The invention relates to microecological preparations, and specifically relates to a microecological preparation produced through composite bacillus spp. solid state fermentation, and a preparation method thereof. The composite bacillus spp. microecological preparation provided by the invention is prepared from any two or more than two of bacillus subtilis, blichenif irmis, B.natto, B.licoglans, B.lentus and B.pumilus. The materials are mixed, and are processed through solid state fermentation, such that a composite preparation is obtained. With the composite bacillus spp. microecological preparation provided by the invention, pollutants such as organics, nitrogen and phosphorus in a cultivation pond can be effectively decomposed, and a water body environment of intensive aquaculture can be repaired. According to the invention, the microecological preparation is produced from composite bacillus spp., which is prepared with cheap culture mediums and the solid state fermentation technology. Therefore, the preparation and the method provided by the invention assist in the popularization and application of microbial preparations.

A total heat exchanger unit (1) is provided with a controller (2) which, upon receiving a stop signal for stopping arbitrary ventilation operation, ends the arbitrary ventilation operation and starts forced ventilation operation and which, upon receiving a start signal for starting the arbitrary ventilation operation, ends the forced ventilation operation and starts the arbitrary ventilation operation. The controller (2) is adapted to intermittently operate an air supply fan (20) and an air discharge fan (21) in the forced ventilation operation.

A residence flatlet fresh air changing system provided with a double air duct pressurizing exhausting device comprises a main exhaust fan (1) and an air absorbing pipeline (2) which is communicated with all the rooms, wherein, an air outlet end of the air absorbing pipeline (2) is connected with an air inlet end of the main exhaust fan (1), and the air absorbing pipeline (2) is provided with a plurality of air absorbing holes (3) communicated with the rooms needing to change air. The fresh air changing system is characterized in that the air absorbing pipeline (2) is provided with at least one multi- air-duct pressure device (4) which is provided with two air ducts, the two ends of which are communicated with the ends corresponding to the air absorbing pipeline (2), and one of the air ducts is equipped with a blower fan (5). The invention solves the problem of installing forced fans on the air absorbing pipeline, can ensure the work of all the forced fans not to affect the air change of other rooms, and selectively pressurizes the rooms needing pressure boost according to the needs, thus ensuring the effect of air change.

The invention relates to a detecting tube for low concentration ammonia gas. Barium sulfate, silica gel or a mixture of the barium sulfate and the silica gel is used as a carrier; thymolsulfonphthalein and methylthymol blue are used as color reagents. The ammonia gas samples with different concentrations flow into the detecting tube; the content of the ammonia gas is determined by different colorsof the color reagents; and the detecting tube has simple structure, quick analysis, low cost and convenient to carrying, and can detect whether the content of the ammonia gas in the environmental airon-site is over-proof at the field. The application experiment shows that the detecting tube has higher sensitivity and substantially meets the requirements of national standard.

The invention provides a biotype seedling vitalizing agent. The prior conventional seedling vitalizing agent consists of a soil disinfection part, a soil acid regulation part and a nutrition part containing nitrogen, phosphorus and potassium and medium-trace elements, wherein germicides for soil disinfection are all prepared from chemical pesticide which is high in toxicity and not easy to decompose in soil, pollutes environment, and is not easy to operate, poor in safety and easy to cause seedbeds diseases and phytotoxicity, as well as serious loss. The soil acid regulation part of the conventional seedling vitalizing agent adopts zeolite, fly ash and other inorganic raw materials to adsorb acid. The composition of the biotype seedling vitalizing agent comprises biological germicides, chemical germicides, nutritional agents, acid and substances for controlling growth, wherein the weight portion of the biological germicides is 0.5 to 3.3; the weight portion of the chemical germicides is 0.35 to 1.2; the weight portion of the nutritional agents is 66 to 90; the weight portion of the acid is 7 to 30; and the weight portion of the substances for controlling growth is 0.012 to 0.06. The biotype seedling vitalizing agent is applied as an agricultural fertilizer.

Building support with a concealed electronic component for a structure, including: a rigid support member; a mounting attachment affixed to the rigid support member, the mounting attachment adapted to support an electronic component; and a transceiver coupled to the electronic component, the transceiver adapted to support an external communication link. Other embodiments provide a backing material to support an electronic component concealed within a building structural element, wherein the building structural element comprises one or more rigid building support members, the backing material including: a substrate; a structure attachment along at least one surface of the substrate, the attachment adapted to attach the substrate to a rigid building support member; and one or more electronic component attachments disposed on a major surface of the rigid substrate.

The invention relates to a vertical type vacuum debinding furnace. The vertical type vacuum debinding furnace is characterized in that a vacuum system is arranged in a furnace shell of the vertical type vacuum furnace and is communicated with a heating chamber through a pipeline; an airtight tank is additionally arranged in the heating chamber; each of the heating chamber and the airtight tank in the heating chamber is provided with an upper opening and a lower opening; a top cover and an upper screen body of the airtight tank are respectively provided with through holes; connecting pipes penetrate into the airtight tank through an air inlet assembly in a lower cover; the other end of the air inlet assembly is respectively connected with a vacuumizing and debinding pipeline and an air cooling pipeline through a three-way pipeline; hearth columns are fixed on the lower screen body and penetrate through the bottom of the airtight tank so as to separate a machined workpiece in the airtight tank from the heating chamber; an air cylinder in the center of an upper cover of the furnace shell drives an air valve to realize opening and closing of the airtight tank and realizes sharing of vacuumizing, air cooling and debinding inside the furnace body together with the three-way pipeline; an air-cooled air return pipe and a vacuum filtering tank structure are additionally arranged, and the debinding pipeline, the air cooling pipeline and the vacuumizing pipeline share one port, so that material feeding and discharging are convenient, the space is saved, and especially the pollution problem that residual grease in the furnace attaches to the wall is solved.

The invention relates to an automobile air window which comprises a top cover (4), a main frame part (9), an accessory frame (3), an air guide ring (8), a ventilator (12), an inner cover (1) and a decorative shield (2), wherein a push-pull device (13) and an opening device (11) are respectively fixed at the front end and the rear end of the top cover (4); the ventilator (12) is fixed in the middleof the air guide ring (8); the accessory frame (3), the inner cover (1) and the decorative shield (2) are arranged at an inner ring of the top cover (4); rain shields (5) are fixed at both sides of the top cover (4); the main frame part (9) is arranged between the accessory frame (3) and the rain shields (5); one end of the air guide ring (8) is connected with the inner cover (1), the other end is connected with the rain shields (5), and the air guide ring (8) is fixed in the middle of the top cover (4) by the inner cover (1) to form a complete automobile air window. The structure has the functions of forced ventilation, natural ventilation and escaping and the characteristic of strong air exchange and seal.

The invention provides a generally X-shaped utility garment comprising two main straps that form an ‘X-shape’ on a wearer's back and a cross-strap above the X shape to stabilize the garment on the wearer's body. The garment, referred to herein as a strapvest, provides a plurality of pockets and / or receptacles for carrying items the wearer needs to access easily. Its receptacles can be detachable, and a user can select which receptacles to have on the strapvest according to the wearer's immediate needs. It can be adjustable in size to fit a wide range of wearers, and can be adapted to carry many different types of items that are needed for work or recreation, by a combination of built-in pockets and other built-in carriers and optional modular receptacles that can be detachably mounted on the straps of the strapvest. It is more convenient for accessing the stored items than a backpack, which needs to be removed to access its contents; it carriers more and potentially heavier items than a utility belt without a tendency to pull the wearer's pants down; and it can be worn with a variety of different types of weather-related or protective outerwear because of its open design and potentially adjustable size.

The invention relates to bacillus licheniformis, a method for preparing a flocculating agent from the bacillus licheniformis and an application of the flocculating agent. The strain is bacillus licheniformis LZ-1 which is preserved in China General Microbiological Culture Collection Center on November 06, 2012 with preservation number of CGMCC No.6782. With the application of the bacillus licheniformis LZ-1 as well as a production method provided by the invention, a fermentation broth, which is high in flocculating activity, is obtained under the condition that an initial pH value is alkaline, and high-molecular-weight polysaccharide, which is 0.8-3.2*10<7>Da, serves as a major flocculating active ingredient. The polysaccharide flocculating agent provided by the invention has the advantages of being high in flocculating activity, low in dosage, low in production cost and the like, and the flocculating agent has a flocculating conditioning effect on sludge. The bacillus licheniformis LZ-1 fermentation broth or a product, which is extracted from the fermentation broth and contains the polysaccharide flocculating agent, can be applied to deep dewatering by sludge plate-frame pressure filtration in a mode of replacing a polyacrylamide flocculating agent, so that sewage treatment plant concentrated sludge, which is 96-98% in moisture content, is further dewatered into a sludge cake which is lower than 60% in moisture content and the size of the sludge is diminished to be 1 / 20-1 / 10 of an original size.

The invention belongs to the field of agricultural plantation, and concretely relates to a konjak interplanting method. The method comprises the following steps: 1, land selecting and soil preparation; 2, konjak seedling growing; 3, konjak plantation; 4, mushroom planting; 5, field management; and 6, harvesting. The method adopting stereo planting of fruit trees, konjak and mushroom improves the output of the konjak, promotes growth of the fruit trees and increases the economic benefit.

The present invention relates to: a smart window having an insect net function for increasing ventilation, while employing a membrane filter capable of blocking ultra-fine particles and the like of which particulate matter (PM) is 2.5 or less; and a driving method therefor. The smart window of the present invention comprises: a blocking member formed in a plate shape having a predetermined area, so as to block the passing of fine dust from outside air; a cover plate arranged to be spaced from the blocking member at intervals so as to form a remaining space in which air that has passed throughthe blocking member remains therein; a support frame, which has a penetration part in the center thereof so as to respectively support the blocking member and the cover plate on the outside and the inside of the penetration part, has an accommodation space formed on the outside of the remaining space, and has an outlet for discharging, indoors, air introduced from the accommodation space; and an air blower, which is provided in the accommodation space and generates a suction force for discharging outside air to the outlet through the remaining space and the accommodation space after the outside air is suctioned to the blocking member.

The invention relates to an air filter assembly. The air filter assembly comprises a shell (1), a first impeller (22), a second impeller (23), a first rotating shaft (24), a first impeller cover (25),a second impeller cover (26), a filter element (2), a scraping blade (4) and a connecting pipe (27). The filter element (2) is rotatably connected with the shell (1), one end of the scraping blade (4) is connected with the shell (1), the other end of the scraping blade (4) is tightly attached to the peripheral wall of the filter element (2), a driving mechanism capable of driving the filter element (2) to rotate is arranged in the filter element (2), and a first air outlet (31) and a second air inlet (9) are communicated through a connecting pipe (27). The air filter assembly has the beneficial effects that on the basis of saving energy and protecting environment, in the use process, dust, sand dust and other dirt on the surface of the filter element can be cleaned and absorbed, the filter element is not prone to being stained, the air inlet amount of an engine is ensured, the engine can stably and normally work, and the service life of the filter element is greatly prolonged.

The invention relates to a biological column leaching device which is used for leaching metal in ore, belonging to mechanical equipment for biological metallurgy. The lower part of an outer clamping sleeve of the biological column leaching device is provided with a support seat, and the bottom is provided with an air inlet port, a feeding port and a sampling port; a base plate is fixedly installed on the support seat, the base plate is provided with a vent hole, a cylindrical vent pipe is arranged on the vent hole, the top of the cylindrical vent pipe is sealed, and the wall of the pipe is provided with small holes; a base plate of an inner barrel is provided with a through hole, the inner barrel is arranged in the outer clamping sleeve, and the cylindrical vent pipe is arranged in the inner barrel through the through hole; and the top of the inner barrel is provided with an end cover, the top of the end cover is provided with an opening, and the inner barrel and the end cover are fixedly connected through bolts. In the biological column leaching device, the ventilation capacity in a liquid is increased through the cylindrical vent pipe, so that breathed air can be better distributed in ore pulp, the growth and metabolism ability of microorganisms are improved, and the utilization rate of ore pulp is increased. The biological column leaching device has the advantages of simplestructure, uniform solid and liquid mixing, sufficient solution of breathed air, difficult caking of ore pulp and the like.

The invention relates to a low and middle grade phosphate dump leaching method with compound bacterial strains and waste biomass being combined. The method includes the steps that low and middle gradephosphate and the waste biomass are subjected to mixed dump leaching after being crushed to be made into powder according to the characteristics of the low and middle grade phosphate and the waste biomass, and a compound bacterial solution is sprayed; cellulose degradation bacteria in the compound bacterial solution are used for decomposing the waste biomass, and a carbon source capable of beingutilized directly is provided for heterotrophic phosphate-solubilizing bacteria in the compound bacterial solution; and then the heterotrophic phosphate-solubilizing bacteria are used for dissolving the low and middle grade phosphate, and finally low-cost large-batch development and utilization of the low and middle grade phosphate can be realized. The low and middle grade phosphate dump leachingmethod has the various advantages that processing capacity is high, environmental protection is achieved, cost is low and the technological process is simple. The leaching rate of phosphorus (phosphorus pentoxide) in the low and middle grade phosphate can reach 58% or above after dump leaching lasts for nine months.

The invention relates to an automotive ventilation window. A top cover (4) and a main frame part (9) are connected into a whole by using stainless iron screws to form a complete ventilation window, a push-pull device (15) and an opening device are respectively fixed at the front ends and the rear ends of the top cover (4) and an inner cover (1), a ventilation fan (14) is fixed at the center of a wind scooper (6), one end of the wind scooper (6) is connected with the top cover (4), the inner cover (1), an auxiliary frame (3) and a decorative sheet (2) are arranged at an inner ring of the main frame part (9), the rear end of the top cover (4) is provided with a rain cover (5), the wind scooper (6) is connected with the rain cover (5), and an air inlet is designed in hand clasping profiles (10). The automotive ventilation window is characterized in that a rain shielding rib I (7) and a rain shielding rib II (8) are arranged in the wind scooper (6) to form double waterproof effects in cooperation with the rain cover (5). The structure provided by the invention has the advantages of strong air exhaust, low noise, high airtightness, labor saving in opening and closing operation, and inward / outward bidirectional opening.

The invention relates to the technical field of purple sweet potato planting, in particular to a method for planting high-calcium rich-selenium purple-sweet-potatoes. According to the method, a cassava-fermented rich-selenium high-calcium organic-fertilizer is used to improve planting soil, so that the soil is rich in selenium, high in calcium and loose, and meets the needs of purple sweet potato growing; a chelated selenium liquid fertilizer added with amino acid is applied to promote the sweet potatoes to absorb organic selenium, so that the selenium content of the sweet potatoes is improved effectively; moreover, effective components can be extracted from natural plants and used for killing pests, so that a made insecticide can be decomposed by the environment easily and not cause pesticide residues, pollution and other harm; the effective components of extractives have a broad-spectrum bactericidal effect, especially for trapping and killing weevils, the effect is remarkable, and therefore the insecticide can effectively ensure that the purple sweet potatoes are not harmed by the pests.

An organizer / storage system that mounts on top of a computer workstation for storage of office supplies, devices, or files that makes efficient use of the available space above, or on one or both sides of the computer workstation. The organizer / storage system includes a top platform and side panels, and may include back and bottom panels with interlocking closure systems, and slide-in shelves with optional drawers. Optional cutouts in the side panels allow airflow to cool the computer, and optional cutouts in the back panels permit connection of conduit or electrical wires. When adaptive fasteners are used for attachment to the computer workstation, the height of the organizer / storage system may be adjusted. Exterior side shelves may be attached to one or both of the side panels to permit storage of a greater variety of objects. The organizer / storage system may be made from a single sheet of suitable material.

The invention discloses a composition and a soft capsule for alleviating cough. The composition for alleviating cough comprises the following compositions in percent by weight: 30-100% of benzonatate, 0-60% of polyethylene glycol and 0-50% of polyol. The soft capsule comprises a soft-capsule shell and a contained substance cladded by the soft-capsule gelatin shell. The contained substance comprises the following compositions: benzonatate, polyethylene glycol and polyol. The soft-capsule gelatin shell is composed of gelatin, a plasticizer, purified water and a coloring agent. The composition for alleviating cough is simple in compositions, stable, effective, and rapid in dissolving and absorption. The soft capsule containing the above composition for alleviating cough is also provided. The soft capsule is applicable to irritable cough, paroxysmal cough and the like caused by acute bronchitis, bronchitis asthma, pneumonia and lung cancer, and is applied to prevent cough when fiberoptic bronchoscopy and laryngoscopy are performed.