65results about How to "Eliminate heat loss" patented technology

A disinfestation treatment chamber for treating fruit, flower and vegetable commodities subject to infestation by quarantine pests. The commodities are disinfested so as to meet quarantine restrictions without adversely affecting the quality of the commodity. The commodity is heated inside of the chamber in hot air having a relative humidity of 30-85% until the temperature of the commodity exceeds the thermal death point temperature of the target pest but is not so high as to adversely affect the quality of the commodity. The temperature of the commodity is held at this temperature until the pest is killed. The commodity is loaded into the treatment chamber in bins onto a low friction conveyor track system which transports the bins from one end of the chamber to the other. The commodities are treated while they are inside of the treatment chamber. After treatment of the commodities, the bins are unloaded using the low friction conveyor track system out of the opposite end of the treatment chamber. The chamber includes a fan/heat exchanger located inside the treatment chamber and positioned under the commodity bins. The space directly above the fan/heat exchanger is left unobstructed during treatment to enhance the airflow through the commodity bins.

The present fluid pumping method for micro-fluidic devices uses gas bubbles to move fluid by light beams. The light beams are emitted to the fluid near the gas bubble through an optically transparent cover and correspondingly heat the fluid in the micro channels. The liquid temperature variation changes the surface tension of the gas bubble near the heated fluid side, therefore, a pressure gradient between the end portions of the gas bubble generates accordingly. By moving the light beams, the moved pressure difference will be achieved, which will drive the gas bubbles and pump the fluid. Such a fluid pumping can simplify the structure of a micro-fluidic device and eliminate heat loss because of using a controllable light beam.

The invention relates to a compressed air heat-linkage energy-storage system based on a reversible air engine, which comprises a motor generator, the reversible air engine, an air reservoir and an heat insulation water tank, wherein the motor generator is connected with the reversible air engine by a speed reducer, and the reversible air engine is respectively connected with the air reservoir and the heat insulation water tank. At the valley period of power consumption, compressed air is made and stored in the air reservoir, and the released heat is stored in the water; at the peak period of power consumption, the compressed air is utilized to drive the reversible air engine to generate electricity, and the stored heat water is used for heating the compressed air. The reversible air engine integrates a compressor and an engine into a whole body, adopts the technical schemes of tail gas pressure stabilization and timely cylinder variable, eliminates the energy loss taken away by tail gas and the decompression energy loss during the gas inlet and has high energy conversion efficiency. The system can be used for peak clipping and valley filling and emergency standby of an electric power system and also solve the intermittent bottleneck of wind power generation as well as the development and the utilization of the off-peak electrical power at night.

This invention discloses a natural gas hydrate underwater heat injection exploitation device, which contains compressor, evaporator, condenser, expansion valve, booster pump, flooding duct, wherein the compressor, evaporator, condenser and expansion valve combined a heat pump, by which absorbing heat from sea water at about 5 degree centigrade, vaporizing refrigerant in evaporator, entering compressor to boost pressure entering condenser to release heat to heat sea water, the heated water pressured by booster pump, entering exploitation sleeve and added with hydrate layer for decomposition of hydrate. Said invention can be used in sea bed with high thermal efficiency.

The invention discloses an ultrahigh temperature tungsten rod heater. The ultrahigh temperature tungsten rod heater comprises a tungsten flange and a plurality of tungsten rods which are made of metal tungsten, wherein the tungsten consists of a plurality of arc-shaped units; the arc-shaped units are divided into a first group and a second group which have the same number and are distributed along two semicircles; each tungsten rod comprises a first straight section, a second straight section and a U-shaped transition section; the transition section is connected between the first straight section and the second straight section; each first straight section and each second straight section are vertically and fixedly arranged in the arc-shaped units of the first group and the second group; the whole heater takes the shape of a cage; and each arc-shaped unit extends radially outwards to form an electrode leading out terminal made of the metal tungsten. According to the design, the copper electrode is changed into the tungsten electrode, so the ultrahigh temperature tungsten rod heater has the advantages that 1, water cooling is not required and heat loss is eliminated; 2, high temperature is realized by low power and electric energy is saved; 3, hidden danger of explosion is avoided; 4, the structure is simple and cost is reduced; and 5, materials are saved and the process difficulty is reduced.

The invention discloses a photoluminescence material with frequency synergistic light conversion and a preparation method thereof. The material meets AB1-x-yFzErxCy, wherein x is greater than 0 and is less than or equal to 0.5, y is greater than or equal to 0 and is less than or equal to 0.5, and z is 4; or the material meets AB2-x-yFzErxCy, wherein x is greater than 0 and is less than or equal to 0.5, y is greater than or equal to 0 and is less than or equal to 0.5, and z is 8; A is any one of metal elements Li, Na, K and Ba; B is any one of rare earth elements Y and Gd; and C is any one of rare earth elements Tm and Ho. The material is prepared by using the conventional high-temperature solid-phase method or hydrothermal synthesis method. Through the material, ultraviolet light/blue light and infrared light are effectively and simultaneously converted into red light; and the intensity of the red light is greater than two times enhanced. The material can be applied to the fields of solar cells, agricultural light conversion films and the like, is environmentally-friendly and pollution-free, and has the advantages of simple preparation process, high repeatability, low cost and easiness in large-scale industrial production.

A magnetic core as a magnetic material that acts on an electromagnetic characteristic of the generated magnetic field and a magnetic field shield member that shields the magnetic field generated by magnetic field generation unit are structured such that magnetic particles are arranged in a base material under a dispersed state. As a result, a magnetic core in which an inductance can be set and a magnetic field shield member in which magnetic field leakage can be suppressed effectively, as well as an excitation coil, a transformer, electric equipment and an electrophotographic apparatus using them are easily provided at low costs.

The present invention provides a method for synthesizing high optical quality multicomponent chalcogenide glasses without refractive index perturbations due to striae, phase separation or crystal formation using a two-zone furnace and multiple fining steps. The top and bottom zones are initially heated to the same temperature, and then a temperature gradient is created between the top zone and the bottom zone. The fining and cooling phase is divided into multiple steps with multiple temperature holds.

The present invention relates to improvement of structure of homogeneous furnace capable of carrying out anti explosive treatment on toughened glass. The invention provides a homogeneous furnace for toughened glass which is energy-saving and highly production efficient. The homogeneous furnace comprises a furnace body, a furnace door and an air cooler being installed on both sides of the furnace body respectively. The structure of the furnace is characterized in that a temperature-insulating layer is installed on the periphery of the furnace body, thermal cycle ducts are installed at the two sides of the furnace body and at the temperature-insulating layer on the top, a heater and a circulating fan are installed at the bottom and the top of the thermal cycle duct respectively, and a cooling cycle duct is installed between the thermal cycle ducts on the top of the furnace body.

The invention provides a selenium-enriched purslane compound fresh vegetable nutrition juice and a preparation method, wherein the selenium-enriched purslane compound fresh vegetable nutrition juice comprises raw materials with parts by weight: selenium-enriched purslane 30-40 parts, celeries 5-10 parts, cucumbers 5-10 parts, carrots 10-15 parts, radishes 5-10 parts, fresh corns 5-10 parts, bitter gourds 5-10 parts, Chinese cabbages 5-10 parts, chaenomeles speciosa 5-10 parts, lemon juices 0.5-1 part and water 100-120 parts. The method for preparing the selenium-enriched purslane compound fresh vegetable nutrition juice comprises steps: all raw materials beside lemon juice and the water are removed, are smashed in a frozen state orderly by de-seeding and mixing, are added with water to beat and are filtered to remove slag, and further use the lemon juices to mix juice, thereby obtaining the selenium-enriched purslane compound fresh vegetable nutrition juice. The selenium-enriched purslane compound fresh vegetable nutrition juice has the advantages of nutritive equilibrium, rich nutritional ingredients and high selenium content and the like, and has the effects to improve immunity, prevent cancer and chronic diseases and prolong life and the like, and the method for preparing the selenium-enriched purslane compound fresh vegetable nutrition juice is high in juice yield, high in dissolution rate of nutrient substances and less in heat loss.

The invention discloses a constant current control circuit controlling a charging loop current. The constant current control circuit is small in size and can reduce energy consumption. The constant current control circuit comprises a switch tube, a switch control circuit and an induction transformer, wherein the switch control circuit is used for controlling switching on and switching off of the switch tube, one end of a primary side coil of the induction transformer is connected with the output end of the switch tube, and the other end of the primary side coil serves as the switching-in end connected with a charging loop; one end of a secondary side coil of the induction transformer is grounded, the other end of the secondary side coil is connected with the switching-in end of the primary side coil through a reverse-preventing diode, the switch control circuit is based on a PWM control chip, a current detection resistor is arranged between the grounded end and the power end of the switch tube, and the grounded end of the switch tube is connected to the feed-in end of the switch control circuit through a current feedback circuit. The constant current control circuit is mainly used in the charging loop when a lithium battery is charged by a charger.

The invention provides a cement clinker manufacturing device and a manufacturing method, which facilitates generation of alite after extracting and sintering a part of cement raw materials having halogen elements and / or fuel and prevent a heat loss from being generated during the high-temperature sintering process and thus reduce the sintering heat of the cement clinkers. The cement clinker manufacturing device comprises a preheater for preheating by mean of cement raw materials having halogen elements and / or fuel, and a rotary kiln for sintering the cement raw materials on the downstream side of the preheater. The cement clinker manufacturing device further comprises an extraction pipeline (6) for extracting a part of the cement raw materials from a sliding chute (5) of a cyclone separator (4) of the preheater (3), a sintering device (7) for sintering the cement raw materials extracted from the extraction pipeline (6), and a returning pipeline (9) located in the rotary kiln (1) and used for a part of the cement raw materials sintered in the sintering device (7) to return.

Disclosed is a method for laser-cutting a carbon fiber base, e.g., a preform configured of sheets of fabric comprising carbon fibers, characterized by cutting the carbon fiber base under initial conditions which have been set so that the state of the base that is being cut with a laser can be inhibited or prevented from deviating from the desired state. With the method, it is possible to effectively eliminate various problems including dissipation of heat, positional shifting from the focal length range of the laser, and soot, and the carbon fiber base can be stably cut while being kept in the desired state.

The invention provides a shock wave generating device of oil-gas wells and an oil-gas well yield increasing method adopting shock waves, and belongs to the field of petrochemical engineering and electric engineering. A constant flow source technology is adopted, current stability can be kept in the charging process, a charging resistor is not needed in a downhole device, the structure is simplified, reliability and compactness are improved, and charging heat emitting and extra losses are eradicated; the shock wave generating device can be suitable for the depths of most oil-gas wells, the overall reliability of the device is improved, charging and discharging loops are short, and the energy utilization rate is high; the low voltage and a large capacitance value are adopted, the waveform ofthe discharge pulse approximates to the low frequency on a frequency spectrum, and thus the shock waves are propagated advantageously in the far range; two opposite spherical surfaces are adopted asa discharge switch, when the voltage reaches the puncture voltage of the shock wave generating device, the shock wave generating device can be connected, during working, other control or triggering signals do not need to be provided, the structure of the device is simplified, and the reliability of the device is improved; and the structure is simple, the downhole environment is prevented from being polluted, and quick and repeated puncture discharging can be achieved.