32results about How to "Full waste heat recovery" patented technology

The invention provides a heat exchanger (100, 100', 100'' or 100''') which comprises a housing (110), a baffle (120), a cold material tube (130 or 130''), a hot material tube (140 or 140''), at least a first communication device (160 or 160') and a second communication device (150), wherein the baffle (120) is arranged in the housing and used for dividing the internal space of the housing into upper and lower medium distribution chambers (111 and 112) filled with heat exchange mediums respectively; the cold material tube (130 or 130'') and the hot material tube (140 or 140'') are arranged in the upper medium distribution chamber and the lower medium distribution chamber respectively; cold and hot materials are suitable for being conveyed to pass through the cold and hot material tubes respectively to exchange heat with the heat exchange mediums; the at least a first communication device (160 or 160') and the second communication device (150) are used for communicating the two medium distribution chambers; the heat exchange medium in the upper medium distribution chamber exchanges the heat with the cold material conveyed in the cold material tube to be cooled and enters the lower medium distribution chamber through the second communication device; and the heat exchange medium in the second medium distribution chamber exchanges the heat with the hot material conveyed in the hot material tube to be heated and enters the upper medium distribution chamber through the first communication device. Therefore, all the cold and hot materials flow in a tube pass; and a shell pass is filled with impurity-free clean fluid, so that the problem of high possibility of blockage of impurity fluid in a heat exchange process is effectively solved.

The invention discloses a high-temperature flue gas waste heat recovery and advanced purification system. The system comprises a waste heat recovery module, a power generation module, an organic Rankine cycle heat exchanger and a dust removal purification module, wherein the gas inlet end of the waste heat recovery module is connected with a high-temperature flue gas inlet, the gas outlet end of the waste heat recovery module is connected with the dust removal purification module, two sets of tube type heat exchangers in different arrangement directions are arranged in the waste heat recovery module, a heat-exchange medium pipe outlet inside the waste heat recovery module is connected with the power generation module, the power generation module and the organic Rankine cycle heat exchanger are connected in series, and steam output through the organic Rankine cycle heat exchanger is subjected to refluxing through a condenser, passes through a working medium separator and then is connected to the waste heat recovery module and a heat exchange medium pipe inlet of the organic Rankine cycle heat exchanger. According to the high-temperature flue gas waste heat recovery and advanced purification system, a water working medium and an organic working medium are adopted and combined with electrolyzed high-temperature flue gas for three-time heat exchange, the purpose of utilizing heat of high-temperature flue gas to the maximum extent is achieved, the dust removal purification module is adopted for conducting advanced purification on cooled flue gas, energy conservation and emission reduction are achieved, and the economic benefit of enterprise production is improved.

The invention discloses a waste heat recovery device and recovery method of a stepping type sintering machine. High-temperature wind in a sintering section flue and a cooling section flue is intercepted by the waste heat recovery device to conduct heat exchanging, so that full waste heat recovery is realized, heat-exchanged low-temperature wind is sent back into the sintering section flue and the cooling section flue, and the normal working of the stepping type flat-burning sintering machine is not affected.