32results about How to "Improve steam parameters" patented technology

The invention discloses a thermal waste water treatment apparatus employing a heat pump. The apparatus comprises a waste water evaporator, a heat pump and a waste water circulating pump; and the waste water evaporator comprises a waste water deoxidizing zone, a saturated vapor zone, a demister, a high concentration waste water stagnation zone, a heat exchange zone, a drain storage zone and a highconcentration waste water distribution zone from top to bottom. In addition, the invention also discloses a thermal waste water treatment method employing the heat pump. Waste water is first evaporated into water vapor; the heat pump is used to increase steam parameters, and the steam is supplied to the heat exchange zone and cools the high concentration waste water into qualified condensed water, which is drained outside; the high concentration waste water absorbs vaporization latent heat of the steam with high parameters, then part of the high concentration waste water evaporates into watervapor; so a heat circulation is completed. According to the invention heat is only needed during a starting process; at other time, the heat circulation within the apparatus is utilized to reduce energy consumption of the apparatus. The apparatus of the invention is simple, has small land occupation, low costs; and the quality of condensed water at a waste water outlet level reaches national highstandard.

The invention discloses a device and a process for generating power through efficient recovery of waste heat of sintered ores and belongs to the technical field of cogeneration. The device comprises a sintered ore cooling system, a waste heat power generating system and a smoke system, wherein the sintered ore cooling system and the waste heat cycling power generating system are connected through the smoke system to form a loop. The process comprises the steps of 1), cooling of sintered ores; 2) the smoke system; and 3) waste heat power generating. The device and the process for generating power through waste heat have the advantages that discharged waste heat is used fully during cooling of sintered ores, the electric energy production is improved significantly, the power rate of the system is reduced significantly, and the energy-saving effect is significant.

The invention discloses a groove type solar direct stream heat collecting pipe which is used for a solar thermal power generation system. The heat collecting pipe can directly receive solar focusing radiation to heat working medium water in the pipe so as to generate steam and comprises an absorption pipe, a glass casing pipe and connection devices at the two ends of the heat collecting pipe. A heat absorption pipe is composed of a stainless steel pipe, a selective absorption coating on the surface of the outer wall of the heat absorption pipe and a filling structure in the heat absorption pipe. The filling structure is an annular metal foam layer with an axial spiral groove, and the thickness of the layer gradually reduces in the flowing direction of a work medium. A vacuum layer is arranged between the absorption pipe and the glass casing pipe. The connection devices at the two ends of the heat collecting pipe are made of flanges and corrugate pipes. A glass-metal sealing connecting opening is processed in a crumpling mode. According to the groove type solar direct stream heat collecting pipe, on one hand, radial gas-liquid two-phase flow type reconstruction with gas inside and liquid outside in the absorption pipe is achieved, the fact that circumferential heat stress distribution of the absorption pipe is uneven is changed, and the problem of induction invalidation of heat stress is solved; on the other hand, local residual stress in the heat sealed technology can be reduced, and the problem of invalidation of end portion sealing connecting of the glass casing pipe is solved. The groove type solar direct stream heat collecting pipe can obviously improve the reliability and stability of the solar direct stream heat collecting pipe.