32results about How to "Uninterrupted heating" patented technology

The invention discloses a method for preventing and controlling freeze-expanded damage to water-containing subgrade in a cold region and a bunched low-temperature heat pipe. The method is characterized in that a T-shaped bunched solar low-temperature heat pipe capable of transmitting solar energy or electric energy heat into the subgrade is arranged in the subgrade; when the environmental temperature is lower than 0 DEG C, a working medium on the evaporation segment of the low-temperature heat pipe absorbs solar energy heat and rises to be conducted into the condensation segment of the low-temperature heat pipe; on cloudy days, the working medium on the evaporation segment is heated through electric heating, and is conducted into the condensation segment of the low-temperature heat pipe; heat is transmitted into the water-containing subgrade through the condensation segment in order that the temperature of the water-containing subgrade is greater than the icing temperature; the working medium which releases heat returns back into the evaporation segment under the action of gravity to absorb heat, and the abovementioned work is performed circularly in order that the temperature of the water-containing subgrade is kept higher than the icing temperature, so that the occurrence of freeze-expanded damage to the subgrade is prevented. The method is simple and reliable, the phenomenon of frost heaving of the subgrade can be effectively avoided, and the transportation safety is ensured.

The invention discloses a chip-level self-sustained thermoelectric generation system. The chip-level self-sustained thermoelectric generation system comprises a normal-temperature nuclear fusion module, a temperature difference thermoelectric module, an amplifying circuit module, a power management circuit module, an electricity storage module and a control and distribution module which are connected sequentially. The chip-level self-sustained thermoelectric generation system has the advantages that thermal energy is converted into electric energy by using a temperature difference thermoelectric thin film as an energy conversion medium, so that unnecessary heat dissipation cannot be generated, and energy conversion ratio is increased remarkably; quite high energy gain can be generated by normal-temperature nuclear fusion, in other words, energy generated during normal operation of the system is far more than energy inputted from the outside, so that self-sustained electricity generation can be achieved, and the electric energy is outputted continuously.

The invention discloses a line-frequency induction type dynamic drying machine with four quartz tubes. The line-frequency induction type dynamic drying machine comprises the four quartz glass drying material tubes which are arranged obliquely, wherein an annular heating barrel is arranged at the middles of the quartz glass drying material tubes; a feeder is arranged at upper feeding ends of the quartz glass drying material tubes; a material receiving device is arranged at lower discharging ends of the quartz glass drying material tubes; the feeder is provided with a material bin; a reamer breaking and dispersing mechanism is arranged in the material bin; a vibration material conveying groove is formed at the lower end of the material bin; the material receiving device is provided with a three-stage cascade type suddenly cooling device and a material collecting device; the cascade type suddenly cooling device is provided with a material receiving hopper, a cooling barrel and an air collecting barrel; a group of cooling tubes arranged in a fence shape is arranged at the upper part of the cooling barrel; a quartz glass sleeve is sheathed outside each cooling tube; and jet flow air holes are formed in a hole wall of a suddenly cooling plate along the tangential direction. Induction heating is carried out on a heating cavity by using an excitation coil, so that materials can be heated continuously, and powder can be at a movement state all the time, so that the drying effect is good, and the cooling efficiency is high.

The invention discloses a chemical adsorption type heat refrigeration system employing an alkaline-earth metal halide. The chemical adsorption type heat refrigeration system comprises N adsorption bed components, wherein each adsorption bed component comprises an adsorption bed unit tube component, an ammonia gas adsorption pipeline and an ammonia gas desorption pipeline, a heat source inlet pipeline, a cooling water inlet pipeline and a cooling water return pipeline; each adsorption bed unit tube component comprises M adsorption unit tubes, each adsorption unit tube comprises an adsorption outer tube, a plurality of trays arranged in the adsorption outer tube and a filter screen arranged between two adjacent rows of trays, an adsorbent is arranged in each tray, and the top ends of the adsorption outer tubes are connected to a gas manifold; a condenser, a liquid ammonia tank, a throttle valve and an evaporator are connected between each ammonia gas adsorption pipeline and each ammonia gas desorption pipeline in sequence. According to the chemical adsorption type heat refrigeration system, through cooperative application of chemical adsorption beds for adsorption and desorption, the uninterrupted heating or cooling is realized, and the refrigerating capacity and the refrigeration depth are improved under the same heat source condition.

The invention discloses equipment for spraying PTFE on a framework oil seal lip and a spraying method of spraying the PTFE on the framework oil seal lip. The equipment comprises a feeding table, wherein a spraying table is fixedly connected to one end of the feeding table, a drying channel is fixedly connected to the other end of the spraying table, a discharging table is fixedly connected to theother end of the drying channel, and conveyors are fixedly connected to positions of adjacent sides of top end of the feeding table and the top end of the spraying table. The equipment is scientific and reasonable in structure and safe and convenient to use, station rotary discs, placement bases, fixing rods, clamping grooves, limiting rods and tension springs are arranged, and products are conveniently stacked in order through the station rotary discs on the feeding table and the discharging table, so that movable clamps conveniently grab the products, the product feeding and discharging speed is increased, the working efficiency is improved, and meanwhile, the limiting rods are pulled through the tension springs to drive the limiting rods to retract along the clamping grooves, and then the station rotary discs conveniently place the products with different specifications.

The invention discloses a laboratory test tube automatic washing device. The laboratory test tube automatic washing device comprises a box; a flushing mechanism is arranged in the box; the flushing mechanism comprises a water spraying device for flushing the outer walls of test tubes, and a flushing device for flushing the inner walls of the test tubes; the flushing device comprises a tube placingbox; a drying mechanism is arranged on one side of the box; the drying mechanism comprises a heating chamber, and a conveying belt for conveying the tube placing box; and the conveying belt is inserted in the heating chamber. Through arrangement of the drying mechanism, the cleaned test tubes can be dried, so that water on the test tubes can be quickly removed, the test tubes can be directly used, and the water removing efficiency of the test tubes is improved; through cooperative arrangement of the heating chamber and the conveying belt, the test tubes can be heated in the heating chamber while being conveyed on the conveying belt, so that the needed conveying time after heating is saved; and meanwhile, the heat loss of the heating chamber can be reduced, so that the drying effect of thetest tubes is better.

The invention discloses a 3.2 t steel ingot mold capable of preventing secondary shrinkage cavity. The 3.2 t steel ingot mold comprises a base, wherein a sealing block is arranged in the middle of thetop of the base in a penetrating manner, the bottom of the sealing block penetrates through the base and extends to an inner cavity of the base, ear plates are both fixedly connected to the front side and the back side of the two sides of the base, the front surfaces of the ear plates are connected with clamping strips in a penetrating mode, the outer sides of the clamping strips are connected with a bottom plate in a sleeve mode, and one side, away from the base, of the top of the bottom plate is fixedly connected with a side plate, one side, close to the base, of the side plate is providedwith a sliding groove, a heating groove is formed in the top of the base, and heating wires are arranged at equal intervals in an inner cavity of the heating groove. According to the mold, through thecooperation of the ear plates, the bottom plate, the side plate, the sliding groove, lifting ears and clamping grooves for using, the problem that a traditional steel ingot production mold is inconvenient to fix and place is solved; and through cooperation of a sealing block, a heat preservation cap, the heating wires, a heating groove and through holes for using, the problem that the secondary shrinkage cavity is easily caused by the traditional steel ingot production is solved.

The invention discloses a coal gas heating method for an iron-making blast furnace, which comprises the following steps of: introducing furnace burning coal gas and combustion-supporting air into a coal gas heating furnace to burn and heat lattice bricks, closing the furnace, stopping feeding the furnace burning coal gas and the combustion-supporting air, purging the space in an inerting furnace, and feeding normal-temperature metallurgical pressurized coal gas to an inlet of the coal gas heating furnace, the coal gas is heated through heat transfer of checker bricks of the coal gas heating furnace, is sent out from an outlet of the coal gas heating furnace, is mixed with part of cold coal gas in a gas mixing chamber according to a certain proportion before entering the blast furnace and then is injected into the blast furnace, and when the temperature of the mixed coal gas does not meet user requirements, other coal gas heating furnaces which burn the furnace are replaced to send the coal gas; and the replaced gas heating furnace is stuffy, residual gas in the furnace is discharged to a low-pressure gas main pipe, the space in the inerting furnace is purged, then the residual gas discharging direction is switched to a flue main pipe, the gas heating furnace is subjected to next-round furnace burning, and circulation is conducted in sequence.

The invention discloses a zoning circulation heating phase change heat storage solar water heating system. The zoning circulation heating phase change heat storage solar water heating system comprises a phase change heat storage solar water heater and a heat preservation box. A cold water box and a plurality of heat storage boxes are arranged in the heat preservation box. A water supply pipe extending into the heat preservation box is arranged at the water outlet end of the phase change heat storage solar water heater. A first water pipe connected with the water supply pipe is arranged on the top of each heat storage box and provided with a first electromagnetic valve. A second water pipe connected with a water inlet pipe is arranged at the bottom of each of the cold water box and the heat storage boxes. Each second water pipe is provided with a second electromagnetic valve. By means of the above manner and the zoning circulation heating phase change heat storage solar water heating system, through control over independent opening and closing of the first electromagnetic valves and the second electromagnetic valves, the phase change heat storage solar water heater is used for heating stored water in single heat storage boxes, heating of other heat storage boxes is not influenced during using, and constant circulation heating is achieved.

The invention relates to a heat exchange and heat storage device suitable for biogas power generation high-temperature exhaust air. The device comprises a heat exchange tank, a water storage part arranged in the heat exchange tank, and a heat source conveying part and a heat storage part arranged in the water storage part in a sleeved mode; the heat source conveying part comprises a heat source discharge pipe arranged on the axial center line of the heat exchange tank, and a heat source layer arranged out of the heat source discharge pipe; the heat source layer is provided with an input pipe;the heat source discharge pipe and the heat source layer communicate by a first channel; the water storage part comprises a spiral pipe coiled out of the heat source discharge pipe, and a water storage layer; the water storage layer and the spiral pipe communicate through a second channel; the spiral pipe is provided with a drainage pipe; the water storage layer is provided with a water inlet pipe; the heat storage part comprises a heat storage layer annularly arranged out of the spiral pipe; and the heat storage layer is filled with a heat storage medium. The device can realize multistage heat exchange of the heat exchange device, and can reasonably control the smoke temperature to prevent the device corrosion caused by quicker reduction of the smoke temperature.

The invention provides a rapid sludge granulation and drying treatment system and method based on medium loading, and belongs to the technical field of sludge treatment. The system comprises a sludgedewatering device, a heat transfer medium heating device, a granulator, a sludge dryer, a rolling crushing device and a screening device which are connected in sequence. A plurality of metal balls areheated in the heat transfer medium heating device and sent into a granulator, and sludge is dewatered and sent into the granulator; the metal balls are mixed with wet sludge to form homogenized sludge balls with the ball centers being the metal balls and the outer surfaces being wrapped with the wet sludge, then the homogenized sludge balls enter the sludge drying machine to remove moisture in the sludge, the sludge is ground through grinding, the metal balls and the sludge are separated, and after screening is conducted through the screening machine, the metal balls are repeatedly heated andrecycled, and the dried sludge is conveyed to a dry material bin. The system has the advantages that heat is provided by the metal balls in the sludge balls so that sludge is internally and externally heated, the energy consumption of sludge drying is greatly reduced, the moisture content of the sludge is further reduced, and the sludge drying efficiency is improved.