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161results about How to "Easy to retrofit" patented technology

Remote level gauge adapted for liquid fuel tank

An apparatus for sensing a fluid level that, in one embodiment, is adapted to fit the threads of a fill pipe or vent cap in a storage tank. A first (or upper) part of the assembly is secured in an upper portion of the tank (such as is provided at a threaded vent opening) and includes components to permit sensing pressure at a first location. A second (lower) portion of the assembly sensing pressure at a second location is disposed in a weighted casing. The second portion is coupled to the first portion through a cable that carries a section of tubing. Circuitry disposed in the second portion receives a pressure indication from the upper portion through the tubing, and detects a fluid pressure at both the upper and lower portion of the tank. The difference between the two pressures is indicative of fluid level. This level is then sent back up to the electronics assembly in the first (upper) portion. The electronics assembly can contain a microprocessor and a radio transmitter, such as a cellular or other wireless data network transmitter, to report the fluid level to a remote station such as operated by a fuel supplier. In more particular aspects, the reports of fluid levels can be delayed until periods of significantly less change in fluid level or an indication that use of the tank as stopped, to save battery life.
Owner:KRITLOW MARK +1

Laser processing method and system assisted by water jet and gas jet

InactiveCN103358027AFast power deliveryImproved Power Scouring ActionLaser beam welding apparatusPhysicsWater jet
The invention discloses a laser processing method and system assisted by a water jet and a gas jet. According to the laser processing method, a laser beam is focused on the surface of a workpiece; a gas jet beam of which the diameter is greater than that of the focus point of the laser beam is coaxial with the laser beam; after the gas jet beam enters a cut slot, a water jet beam behind the gas jet beam also enters the cut slot. The center line of the water jet beam is in a plane formed by the center line of the laser beam and the cut slot; the intersection point of the center line of the water jet beam and the surface of the workpiece is 1-2 mm from the focus point of the laser beam. The system comprises a laser generating mechanism, a gas jet nozzle and a workbench, wherein the longitudinal center line of the jet hole of a water jet nozzle behind the gas jet nozzle is in the plane formed by the center line of the laser beam and the cut slot; a gas pump and a water pump are respectively connected with the gas jet nozzle and the water jet nozzle; water circulates through the water pump, the water jet nozzle, a working cavity above the workbench and a water tank. According to the invention, the water jet beam restrains gas expansion, reduces the heat effect of laser, takes away deposits, and improves the efficiency and quality of laser ablation, so that the invention achieves remarkable effects particularly in processing plates with thicknesses above 15 mm.
Owner:GUILIN UNIV OF ELECTRONIC TECH +1

Noninvasive intracranial pressure measuring method and noninvasive intracranial pressure analyzer using method

The invention relates to a noninvasive intracranial pressure measuring method and a noninvasive intracranial pressure analyzer using the method. An initial sample database is built with sample data of a sample patient serving as a sample, data training is carried out, a plurality of sample models are built, noninvasive measurement, analysis and processing are carried out on intracranial pressure relevant data of the patient to be tested, the sample model with the largest similarity to the patient to be tested is selected, and the measured intracranial pressure relevant data of the patient to be tested are substituted into the selected sample model to obtain noninvasive ICP data of the patient to be tested. According to the method and the analyzer, the sample models are built in advance, and the sample model with the smallest error is selected to serve as the sample model of the sample to be tested so as to predict noninvasive intracranial pressure. The method and the analyzer are suitable for different individuals and patients of different groups, are good in backward compatibility, can achieve quick and accurate measurement through simple computation according to the database after data training, and remarkably improve measurement speed and accuracy.
Owner:焦文华

Cooling water system and control method thereof

The invention discloses a cooling water system and a control method thereof. The cooling water system comprises a refrigerator unit, a main water inlet pipe, a cooling water pump, secondary water inlet pipes, cooling towers, a cooling system balancing controller, a main pipe flow rate balancing valve which is arranged on the main water inlet pipe, and a secondary pipe flow rate balancing valve which is arranged on the secondary water inlet pipe. The control method comprises the following steps: detecting main water inlet flow rate parameters in the main water inlet pipe; determining the quantity of started cooling towers based on the minimum water inlet flow rate of each cooling tower; detecting the water inlet flow rate in each secondary water inlet pipe; adjusting the opening degree of the secondary pipe flow rate balancing valve based on the maximum water inlet flow rate of each cooling tower; controlling the actual flow rate of the secondary water inlet pipes to be not greater thanthe maximum water inlet flow rate of the cooling towers; detecting the total water inlet flow rate in the main water inlet pipes and the quantity of the cooling tower in a starting state; determiningthe average water inlet flow rate of each cooling tower in the starting state; and outputting the average water inlet flow rate as the actual set flow rate to each secondary pipe flow rate balancingvalve in order to adjust the opening degree of each secondary pipe flow rate balancing valve. The system realizes hydraulic balance, and is energy saving and stable in running.
Owner:广东新菱空调科技有限公司

Sensor assembly for optically detecting the edges of a product and width-measurement method

The present invention relates to a sensor device in the edge of the optic detecting product for measuring the product width especially by confirming the light transmission affected by the product. According to the invention one row of point-shaped light sources which can be separately controlled and is provided with assured position lie at one side of the product and is used coordinately with at least one optical fiber unit, the optical fiber unit extends parallel with the row of light sources and is insulated with the latter in optics, and is optically coupled with the light which is emitted by the light source and is reflected by the product, and at least one photodetector is connected with the optical fiber unit. As the position of each optimized light source is known and the point-shaped light source is controlled successively or selectively, or is controlled with small group, the detecting of the edge can be executed with the following mode. In the control period of the n point-shaped light source the reflecting signal falls on the optical fiber and is transmitted to the photodetector, and the position of the edge of the product conveyor belt can be confirmed as the exclusive assigning of the just now controlled point-shaped light source relative to the respective position. The resolution of the information relative to the product width is confirmed by each smallest unit of the point-shaped light source, the distance between the units or the relationship of the hole.
Owner:MAHLO

Method for measuring heat consuming user heating load of vertical single tube cocurrent type system and heating metering distributing system of vertical single tube cocurrent type system

ActiveCN103033292AEasy to retrofitAchieve hydraulic balanceCalorimeterVertical tubeBalanced flow
The invention provides a method for measuring heat consuming user heating load of a vertical single tube cocurrent type system and a heating metering distributing system of the vertical single tube cocurrent type system, and relates to a heating metering distributing system. The method for measuring heat consuming user heating load of the vertical single tube cocurrent type system and the heating metering distributing system of the vertical single tube cocurrent type system solve the problem that an existing vertical single tube cocurrent type system in buildings is difficult to remould. A flow controller locking balanced flow is placed on each stand pipe of each apartment, each stand pipe is provided with a water supply temperature sensor and a water returning temperature sensor, each user family is provided with a room temperature sensor, and a calorimeter is placed in a total building heating entry well. Heat dissipating capacity of each stand pipe and radiators at each floor and equivalent heat consumed by each heat consuming user are measured according to the measured water supply temperature and water returning temperature of each stand pipe and the measured room temperature in each user. The method for measuring the heat consuming user heating load of the vertical single tube cocurrent type system and the heating metering distributing system of the vertical single tube cocurrent type system are suitable for heat metering reformations of a vertical single tube cocurrent type system connected on the single side, a vertical single tube cocurrent type system connected on two sides without a crossing tube and a vertical single tube cocurrent type system connected on two sides with a crossing tube and radiators at the same user.
Owner:HARBIN INST OF TECH

Method for assigning large sets of characters in different modes to keys of a number keypad for low keypress-data-entry ratio

A key assignment method assigns large sets of alphabetic and other characters and functions to the keys of a standard numeric keypad for text / data entry on an electronic device. Two letters are assigned in pairs to each key of the standard 12-key keypad in a first character mode, and other symbols, characters, or infrequently used letters are assigned in a second or more optional character modes. A mode selection key is provided to select between the modes. In the first character mode, a keypress of a key selects the first letter of the pair and two keypresses in succession selects the second letter. The letter pairs may be assigned in alphabetic order, except for infrequently used letters, such as ‘Q’ and ‘Z’, or in QWERTY order, or in pairs of a more frequently-used letter with a less frequently-used letter. By comparison to the standard phone keypad layout having an average KPD=2.2, this method can achieve a KPD=1.4 or lower. The standard directional arrow keys (RDI keys) may be used for mode selection in multiple character modes. Using the RDI mode selector can transform the conventional 12-key telephone keypad into the equivalent of a 60-key data entry layout (or expandable by 48 more keys for each additional mode keystroke used), thereby allowing operation comparable to a full QWERTY keyboard of characters, with enhanced symbols and functions, and / or with multi-language character sets.
Owner:DIAMOND DISTRIBUTORS

Multipurpose type drying device

InactiveCN106440677AReduce pollutionRetrofit is simple and convenientFood processingClimate change adaptationCoalProcess engineering
The invention discloses a multipurpose type drying device comprising heat pumps, an air inlet passageway, a heat exchanger unit, an air feeding passageway and material drying bins. The heat exchanger unit comprises heat exchangers. Fresh air inlets of the heat exchangers communicate with the air inlet passageway. Heat source inlets of the heat exchangers communicate with the heat pumps. Heating outlets of the heat exchangers communicate with the air feeding passageway. An outlet of the air feeding passageway is connected with the material drying bins. By means of the multipurpose type drying device, the traditional coal combustion heat supply manner is converted into the heat pump heat supply manner, pollution to the environment is effectively reduced, the multipurpose type drying device is energy-saving and environment-friendly, the traditional heat supply manner is replaced with the multipurpose type drying device, transformation is easy and convenient, and large-scale application and popularization are facilitated. The multipurpose type drying device is suitable for various agricultural products, the utilization rate of the whole device is quite high, the drying effect is good, and compared with traditional multiple drying devices, the overall device cost and the land occupation are reduced.
Owner:河南芳捷农业发展有限公司

Method for extracting and recovering amide from aqueous solution

The invention discloses a method for extracting and recovering amide from an aqueous solution. An amide aqueous solution is added into the bottom of an extraction tower at a normal temperature, a main extraction agent is added into the top of the extraction tower, a composite solvent consisting of a main extraction agent and an auxiliary extraction agent is added into a part at the height, 0.1-0.4 times away from the top of the tower, of the extraction tower, extraction and separation are finished through countercurrent contact of liquid-liquid phases, and a raffinate phase mainly containing water and an extraction phase containing amide are obtained from the top and bottom of the tower respectively. The extraction phase containing amide passes through a main extraction agent recovery tower, an auxiliary extraction agent recovery tower and a product recovery tower in sequence to obtain the main extraction agent, the auxiliary extraction agent and an amide product from the top of the tower respectively, and the main extraction agent and the auxiliary extraction agent are recirculated for extraction of the amide aqueous solution. The method increases the distribution coefficient of amide in the extraction agent under the action of the auxiliary extraction agent, and can remarkably reduce the consumption of the extraction agent, reduce the energy consumption of subsequent rectification separation, so as to achieve remarkable economic benefits.
Owner:ZHEJIANG UNIV

Embedded compound spinning frame and spinning method thereof

The invention discloses an embedded compound spinning frame. Two layers of unwinding brackets and four parallel unwinding rollers are arranged on an upright post of a creel; the unwinding rollers positioned on the same side of the unwinding brackets mutually drive and are connected by a vertical driving pair of the unwinding rollers; and at least one unwinding roller in the unwinding rollers on the same side of the unwinding brackets is in driving connection with a front roller of a drawing mechanism through an unwinding roller driving device. When in spinning, two rovings hung on the creel respectively enter a drawing area of the drawing mechanism in parallel through roving horn mouths for drawing; two unwound filaments roll from different unwinding rollers and respectively enter the rear side of a tong port of the front roller of the drawing mechanism through a filament guider; and the two filaments and two drawn rovings are combined on the rear side of the tong port of the same front roller, output and twisted from the front side of the tong port of the front roller and wound on a spinning tube of a spindle. The invention not only can conveniently spin short fibers and other low-grade raw materials, but also has the advantages of abundant yarn type structures, dry resultant slivers and superior filoplume indexes.
Owner:DONGFEI MAZUOLI TEXTILE MACHINERY +1

Assembled road structure and construction process thereof

PendingCN108547191AReduce the impactSave structural strengthIn situ pavingsSheet steelReusability
The invention belongs to the technical field of municipal administration and in particular relates to an assembled road structure and a construction process thereof. The assembled road structure comprises a roadbed, a reinforced concrete plate and an asphalt pavement; through holes are formed in four corners of the reinforced concrete plate; linking rod grooves are formed in the side edge of the reinforced concrete plate; two ends of conducting linking rods are inserted into the linking rod grooves to be connected with the adjacent reinforced concrete plates; steel plates are placed on the adjacent reinforced concrete plates; riveting rods penetrate through the steel plates and the through holes to fix the reinforced concrete plates on the roadbed; and the asphalt pavement is laid on the surfaces of the reinforced concrete plates and bonded with the reinforced concrete plates by using tack coats. According to the assembled road structure and the construction process thereof, the construction process is simple, convenient and fast; the influence from weathers in the construction process can be effectively reduced; the structural strength of the pavement structure is enhanced and theservice life of the pavement structure is prolonged while the construction period is effectively saved; later reconstruction and maintenance are simple and convenient; and meanwhile, as a base coursematerial used in the construction process is an assembled prefabricated reinforced concrete plate, the reusability is realized, and the cost can be effectively saved.
Owner:WUXI MUNICIPAL DESIGN INST

Door lock structure of push-pull type ring main unit

The invention provides a door lock structure of a push-pull type ring main unit. The door lock structure comprises two lock rods which are matched with insertion holes in a ring main unit body in useand are arranged up and down. The door lock structure is structurally characterized by further comprising a lock body which is fixedly arranged on a door of the ring main unit and serves as a mountingbase of the door lock structure, a push-pull driving mechanism which is arranged on the lock body and is used for driving the two lock rods to vertically move up and down through forward and backwardpush-pull movement to realize locking and unlocking of the door of the ring main unit, and a padlock which is used for locking the lock body; the push-pull driving mechanism comprises a push-pull handle, an inner connecting piece, an outer connecting piece and two steel wire pipes; the push-pull handle is sleeved with the inner connecting piece and can rotate relative to the inner connecting piece, the inner connecting piece is in threaded connection with the outer connecting piece, and one ends of the two steel wire pipes are fixedly connected with the outer connecting piece; and the other ends of the two steel wire pipes are fixedly connected with the ends, close to the lock body, of the two lock rods correspondingly. The door lock structure is relatively simple in structure, relativelylow in cost and capable of realizing locking and unlocking conveniently in a labor-saving mode in use.
Owner:JIANGSU ELECTRIC POWER CO +1

Double-beam laser processing optical system

The invention belongs to the field of laser processing, and discloses a double-beam laser processing optical system. The double-beam laser processing optical system comprises a pulse fiber laser (1) used for emitting main laser, a continuous laser (2) used for emitting auxiliary laser, a reflector (3) capable of adjusting deflection direction, a beam combiner (4), a focusing assembly and a laser scanning assembly, wherein the auxiliary laser is combined with a main laser through the reflector (3) capable of adjusting the deflection direction to form a double beam laser, the double beam laser is transmitted to a to-be-processed workpiece for the laser processing, and a relative position of a focusing light spot of an auxiliary laser and a focusing light spot of a main laser is kept unchanged all the time on a workpiece laser processing path. According to the system, the composition of components in the system and interaction relation among the components are improved, the auxiliary laser which the relative position of the focusing light spot always keeps unchanged with the focusing light spot of the main laser on the workpiece laser processing path is introduced, the double beam isrealized, and the problems of high price and the like of the high-power optical fiber laser can be overcome.
Owner:HUAZHONG UNIV OF SCI & TECH
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