35results about How to "Simplify the heat transfer process" patented technology

The invention relates to a processing flow of FT synthetic oil, which comprises hydrogenation, low-temperature oil washing, decarburization and PSA. The invention is characterized in that the synthetic oil is mixed with hydrogen via a filter, and enters a hydrogenated prerefining reactor after heat exchange, then enters a hydrogenated refining reactor after the synthetic oil is heated to 300 to 380 DEG C by a heating furnace; oxygen-containing compounds, unsaturated hydrocarbons and metal impurities in the raw material are extracted; the hydrogenated refined product enters a high thermal separator for separation of oil phase and gas phase after heat exchange, and enters a hydrocracking reactor for hydrocracking after heat exchange and heating of the heating furnace; the cracked product and the refined product are mixed to enter a fractionation system; a combined flow with two stages connected in series is adopted for the hydrogenated refining reactor and the hydrocracking reactor which share a recycle hydrogen system; a fractionation system is shared by the hydrogenated refined oil and the hydrocracked oil; and a three-column process flow is adopted for the fractionation system. The invention has the advantages of low gas consumption of the low-temperature oil washing process, high recovery of light hydrocarbons, less matching investment, and reduction of energy consumption and improvement of hydrogen recovery rate due to the decarburization process.

The invention relates to a two-stage and multistage adsorption heat pump, belonging to the waste heat utilization technique. Wherein, it combines the middle absorbers with the middle vaporizer, to form adsorption-vaporization device; inside the adsorption-vaporization device, solution absorbs the steam of coolant from the vaporizer or superior (low-pressure) adsorption-vaporization device that processed outside the heat exchange tube; and the heated coolant from the coolant hydraulic pump flows the tube, the heat generated by using solution to absorb the steam of coolant is directly used to heat and gasify the coolant. Compared with present structure, the invention reduces the number of middle absorber and vaporizer, to make the number of adsorption-vaporization device lower 1 than the stage number, based on four basic elements that vaporizer, condenser, generator and absorber. The invention simplifies the process, improve the thermal parameter, and improve the temperature.

The invention discloses a flat integral solar water heater. The water heater comprises a flat plate box covered with a cover plate. There is a bottom plate under the box, and a frame around the periphery. There is an insulation layer between the box, the bottom plate, and the frame. The first threaded pipe mouth is a water inlet, the threaded pipe mouth arranged along the diagonal position of the water inlet is a hot water outlet, and the other two threaded pipe mouths are respectively provided with a temperature measuring probe and an electric heating pipe. The invention integrates several functions of heat absorption, heat conversion and hot water storage; it simplifies the heat exchange process, reduces system materials, and greatly improves the cost performance of the solar water heating system. A solid foundation has been laid.

Disclosed is a tower bottom reflecting type solar focusing heat-collecting device. The device consists of heliostats, a rotary paraboloidal mirror, tapered mirrors, a cylindrical mirror, a compound paraboloidal mirror, a sunlight receiver and a heat storage heat exchanger, wherein the rotary paraboloidal mirror, the tapered mirror, the cylindrical mirror, the tapered mirror, the compound paraboloidal mirror, the sunlight receiver and the heat storage heat exchanger are arranged sequentially from tower top to tower bottom, a plurality of heliostats are used for focusing and reflecting sunlight to the tower top, the rotary paraboloidal mirror, the tapered mirrors, the cylindrical mirror and the compound paraboloidal mirror are used for re-reflecting the sunlight to the sunlight receiver at the tower bottom from the tower top, the sunlight receiver is located in the heat storage heat exchanger, the heat storage and external heat exchanging are achieved on the heat storage heat exchanger, the focusing heat collection, heat storage and external heat exchanging are conducted at the bottom of the tower, the tower bottom load is reduced, the power consumption is reduced, the heat loss is reduced, the process is simplified, the high-temperature heat storage is facilitated, and the device is suitable to solar generating and high-temperature heating application occasions.

The invention discloses an all-vanadium redox flow battery energy storage system equivalence method based on electric-thermal coupling. The method comprises: 1, performing modeling on electrical characteristics of a VRB according to a second-order resistance-capacitance network; 2, performing parameter identification by using a particle swarm algorithm; 3, analyzing the heat production condition of each module in the operation of the battery; 4, analyzing the heat transfer process of the VRB system; 5, based on an electric-thermal ratio fitting principle, a heat transfer path being equivalent; and 6, combining all the states obtained in the step 2 and the step 5 to obtain a complete state space equation of the VRB energy storage system electric heating coupling model. According to the method, the electrical characteristics and the heat generation characteristics of the VRB energy storage system during operation and the coupling relation between the electrical characteristics and the heat generation characteristics are comprehensively considered, the charge state, the terminal voltage and the temperature states of all parts of the battery can be accurately predicted, and safe and stable operation of the VRB is effectively guaranteed.

The invention relates to the field of petrochemical engineering and provides a method of combination of flue gas low-temperature waste heat utilization and salt-containing waste water treatment. The method is characterized by including the steps of: 1) completing an absorbent solution circulation; 2) completing a refrigerant circulation; 3) completing a high-temperature flue gas heat exchange circulation; 4) completing a low-temperature flue gas heat exchange circulation; and 5) closely combining absorption heat exchange with low-temperature multiple-effect evaporation, so that the two processes of the absorption heat exchange and the low-temperature multiple-effect evaporation can be completed. By means of integration of a condenser in absorption heat exchange and a first-effect evaporator in the low-temperature multiple-effect evaporation, the low-temperature waste heat utilization and the salt-containing waste water treatment are combined, so that a heat medium water step is canceled. The method is reduced in heat exchange temperature difference and system loss, is increased in device economy and achieves the double objects of saving energy and reducing emission in a manner of treating wastes with wastes.

The invention discloses a method and a system for separating hydrogen obtained by reforming, which are used for improving the purity of the hydrogen obtained by reforming, improving the liquid yield and further reducing the energy consumption of a device. The system mainly comprises a reaction product separator, a reforming hydrogen supercharger inlet liquid separation tank, a first-section recontact tower, a second-section recontact tower, a reforming hydrogen liquid separation tank and a reforming hydrogen dechlorination tank, wherein a top outlet of the reaction product separator is connected with a reforming recycle hydrogen compressor; an outlet of the reforming recycle hydrogen compressor is connected with the reforming hydrogen supercharger inlet liquid separation tank; an outlet in the bottom of the reaction product separator is respectively connected with the upper part of the first-section recontact tower and the upper part of the second-section recontact tower through a reforming hydrogen heat exchanger; and an outlet in the top of the reforming hydrogen supercharger inlet liquid separation tank is connected with the lower part of the first-section recontact tower through a reforming hydrogen supercharger first section and a first-section recontact air cooler in sequence; a top outlet of the first-section recontact tower is connected with the lower part of the second-section recontact tower through a reforming hydrogen supercharger second section and a second-section re-contact air cooler in sequence; a top outlet of the second-section recontact tower is connected with the reforming hydrogen liquid separation tank, and a top outlet of the reforming hydrogen liquid separation tank is connected with the reforming hydrogen dechlorination tank through the reforming hydrogen heat exchanger.