Novel energy-saving three-effect crystallizing evaporator
An evaporator and crystallization technology, which is applied in the field of new energy-saving three-effect crystallization evaporators, can solve the problems such as the decrease of heat utilization rate
Inactive Publication Date: 2015-04-29
WENZHOU TAIKANG EVAPORATOR
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Problems solved by technology
Compared with evaporators with more than three effects, the utilization rate of heat in the three-effect evaporator will naturally decrease.
Method used
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Embodiment Construction
[0017] Such as figure 1 As shown, this specific embodiment is a new type of energy-saving three-effect crystallization evaporator, including a material evaporation system, a heating system and a condensation system.
[0018] The material evaporation system includes a feed pump 12, a preheater 13, a first-effect separator 141, a first-effect heat exchanger 161, a second-effect separator 142, a second-effect heat exchanger 162, and a three-effect separator, which are sequentially connected through a material pipeline. 143, three-effect heat exchanger 163, discharge pump 17 and crystallization buffer tank 18, discharge pump 17 is arranged on the material pipeline between three-effect separator 143 and crystallization buffer tank 18, one-effect separator 141 and one-effect The material pipeline between the heat exchangers 161 is provided with a first-effect circulation pump 151, the second-effect separator 142 and the material pipeline between the second-effect heat exchanger 162 ...
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The invention discloses a novel energy-saving three-effect crystallizing evaporator which relates to the technical field of evaporators and is used for solving the problem that a low-effect-number evaporator is low in heat utilization rate. The novel energy-saving three-effect crystallizing evaporator disclosed by the invention comprises a material evaporation system, a heat supply system and a condensation system, wherein the heat supply system comprises a gas distribution cylinder, a thermal compression pump and a secondary steam pipe; a gas outlet is formed in the upper end of the separator; the gas outlet of the separator of each effect is connected with a heat source opening pipe of the next-effect heat exchanger; the gas outlet of a tail-effect separator is connected with a condenser pipe; and the gas outlet of a single-effect separator is connected with an exhaust end pipe of the thermal compression pump. According to the arrangement, secondary steam generated by the single-effect separator can be effectively used for a single-effect heat exchanger, and the amount of live steam is greatly reduced. In conclusion, the evaporator disclosed by the invention has high market popularization value.
Description
technical field [0001] The invention relates to the technical field of evaporators, in particular to a novel energy-saving three-effect crystallization evaporator. Background technique [0002] Evaporators are widely used in the fields of chemical industry, salt making, paper making, medicine and environmental protection. Compared with single-effect evaporators, multi-effect evaporators increase the utilization of secondary steam and greatly reduce the utilization of raw steam, thereby reducing energy consumption. In principle, the more effective numbers of evaporators, the more fully the use of heat, but as the number of evaporators increases, the production intensity of equipment will also be reduced, resulting in an increase in equipment investment. Therefore, in actual production, energy consumption and equipment investment should be considered comprehensively to select the best effect number. [0003] In previous production, in order to reduce equipment investment, th...
Claims
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IPC IPC(8): B01D1/26B01D9/02
Inventor 项有国李典彪
Owner WENZHOU TAIKANG EVAPORATOR