Flow ice making method and device based on lithium bromide absorption type refrigeration cycle
An absorption refrigeration and fluid ice technology, which is applied in the field of evaporative freezing to prepare fluid ice and evaporative freezing to prepare fluid ice, can solve the problems of large heat transfer temperature difference, low evaporating temperature, and low refrigeration performance coefficient, etc. Achieve the effect of overcoming large vacuum wear, saving power and simple structure
Inactive Publication Date: 2012-07-18
SOUTHEAST UNIV
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Problems solved by technology
Traditional ice energy storage has disadvantages such as low evaporation temperature, large heat transfer temperature difference in the production process, and low refrigeration performance coefficient. Fluid ice has become a promising application form of ice storage due to its good thermal physical properties and flow characteristics. Therefore, it is of great significance to research and develop new and efficient methods for producing liquid ice.
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[0019] The device consists of a solution circulation loop and an evaporative freezing ice-making module; the solution circulation loop includes a generator 1, an absorber 10, a solution heat exchanger 11, a cooler 15, a first solution pump 16, a second solution pump 17, a refrigerant Water pump 18; evaporative freezing ice-making module consists of condenser 2, water supply device 3, throttle valve 4, evaporative freezing chamber 5, water supply throttle valve 22 connecting water replenishing device 3 and evaporative freezing chamber 5, ice forming device 6, ice water Separation device 7, one-way valve 12, intermediate ice storage 8, one-way valve 13, and ice storage tank 9; the condensed water in condenser 2 is connected to evaporative freezing chamber 5 through throttle valve 4, and the output of evaporative freezing chamber 5 The end sequence is connected to the ice storage tank 9 through the one-way valve 12, the intermediate ice storage container 8, and the one-way valve 1...
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The invention relates to a flow ice making method and device based on lithium bromide absorption type refrigeration cycle. A lithium bromide concentrated solution continuously absorbs steam in an absorber for causing a low-pressure environment of an evaporated refrigerating chamber; water is continuously evaporated for absorbing self heat in the low-pressure environment of an evaporated refrigerating chamber to be partially frozen into flow ice. After the lithium bromide solution absorbs steam derived from the evaporated refrigerating chamber in the absorber and is diluted, the lithium bromide solution is conveyed to a generator by a solution pump for being heated and regenerated; the concentration of the solution is improved, and the solution has the moisture absorbing ability again; andthen, the solution is cooled and conveyed to the absorber to form solution absorbing-regenerating recirculation. The steam derived from the generator is condensed into subcooled water in a condenser;and after being throttled, the subcooled water is conveyed to the evaporated refrigerating chamber for making ice. An ice making system is automatically supplemented by a water tank according to the water level of the evaporated refrigerating chamber.
Description
technical field [0001] The present invention relates to a new method of producing liquid ice by evaporative freezing, which is a method and device for producing liquid ice by evaporative freezing based on lithium bromide solution absorption refrigeration cycle, and belongs to heat-driven refrigeration and liquid ice production. technology field. Background technique [0002] With the emergence of energy shortages, the energy consumption of air-conditioning systems caused by the wide application of refrigeration and air-conditioning equipment has aroused widespread concern in the current society. Energy conservation has become an urgent requirement in the refrigeration field under the new situation. my country has also proposed the sustainable development of the country. strategy. As an important means of saving energy and shifting peaks and valleys, cold storage has important practical significance and application value. Among them, ice storage has the advantages of large la...
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IPC IPC(8): F25C1/00F25B15/06F25B41/04F25B41/06
CPCY02B30/62Y02A30/27
Inventor 殷勇高杜垲张小松査翔张朋磊
Owner SOUTHEAST UNIV