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 Wysłany: Śro 3:14, 15 Gru 2010 Temat postu: air jordans Frozen products processing enterprises |
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Products processing enterprises on the frozen cold source set of structural adjustment and energy balance Opinion
~ D ℃. Meat core temperature 6 ~ 8 \. Process requirements at room temperature for the I5 ~ 20 ℃, the total air-conditioning. Suddenly dark l \machine, at - 20 ℃ for 7 ice evaporation system. st / day. Asked only to consider the rest of the processing of ventilation. Outside the plant to be registered products meet export requirements. Based on the above load requirements should be set for a 35 ℃, a 28 ℃, a 20 ℃, a 15 ℃, a 10 ℃,[link widoczny dla zalogowanych], +5 ℃ six refrigeration system. In order to simplify the system easy to manage to set up a 35 ℃, a l5 ℃, +5 ℃ (± 0 ℃) three systems, the system incorporated into a 28 ℃ for a 35 \Responsible for the freezing, cold storage,[link widoczny dla zalogowanych], ice flake ice system load, the original one 15 \single machine 6Aw-12.5, the burden of stuffy air-conditioned car, taking into account the car to ask l ~ 2 class system, advance 2 ~ 4h early morning start to be cooling, at room temperature before going to work to meet the requirements, a slight margin. It should be noted, in the technical transformation in {l made to re-design of the original design unit or other units of system design calculations, based on technical, economic and site conditions determine the concentration or dispersed cooling cooling, it is necessary to take into account the system is simple, easy to operate,[link widoczny dla zalogowanych], easy to manage and reduce Thousands consumption, but also properly to save energy, improve the cooling efficiency of individual units without a design unit design, hasty expansion of the cooling load access to the original cooling system is harmful. on the cooling design, nitrogen system, cold storage, with the date I thoroughly} by G] BJ? 2 - 84 design, food processing plant air conditioning design,[link widoczny dla zalogowanych], before the enactment of the professional norms, the general store retaining structure should include heat transfer, heat the goods into the car asked,[link widoczny dla zalogowanych], ventilation heat, heat the motor running, the operation the lighting, the operator, to open their calories, the amount of their intimacy, including equipment cooling, hot water heat, steam heat leakage analogy, with 【plate, I NIE slow cooling and so on. the process by 370cm brick wall asked, long body roof of the attenuation coefficient B <2, the average daily temperature of steady heat transfer calculations. Interior to maintain a certain pressure, to ensure the hygienic quality. centralized chiller plant design, usually multi-system, each refrigeration system to normal operation, make the system energy balance in the original design of evaporating temperature, and the various cooling systems can also support each other in the equipment load due to environmental conditions, materials, load changes, by adjusting the system? war machine inspiratory volume, station number, cylinder number, so that the mechanical load and equipment load evaporating temperature in the original balance, to prevent harmful deviation from the equilibrium evaporation temperature. in the food processing enterprises in the cold, gradually dispersed, multi-system development. the systems were selected to evaporate din, coolers, etc., usually focus on the cold source or sub-site , sub focus maintained. the design of the system to load at the same time to be counted there, Li does not actually occur simultaneously, some of asked when running at low load, it will not cause a decline in evaporation temperature, need to be adjusted. For often thrown ship coolers and chillers to set the balance control method is as follows: (1) control evaporative air cooler for the fluid volume. cold battlements reduced, heat transfer coefficient decreased, and vice versa. (2) air volume control. can pass back wind, reducing the effective air through the duct volume. (3) break work. the temperature dropped to the process after the required standard temperature limit stop to limit the temperature rise after the start. closed car when asking workers to operate non-stop fan, asked the same open-house Stop. (4) tie points transfer to a plate pipe, reduce evaporation area. (5) adjust the energy of the village cooler conditioning equipment. low-load cooling capacity regulating cylinder unloading, the cooler the higher efficiency of low load balance, and vice versa . (6) installed in the refrigerator evaporator suction pressure at the section of Tam, or located in the evaporator vapor pressure batch export Pei Lu I section. garlic made a constant pressure. In short, the technological requirements of the Ling asked the same temperature. Although a few established evaporation temperature of the system, but in fact is the evaporation of severe indoor air with a variety of external parameters change. changes in the parameters of indoor and outdoor self-regulating system to achieve the degree of evaporation of Nang Ping Zhou energy, which is unfavorable, because the air density Lang gate dielectric in the temperature difference between evaporating temperature and indoor relative humidity is constrained by the braided indoor, large deviations will affect the rate of _ food quality, timely adjustment of adjustable parameters, try to achieve a relatively stable temperature, evaporation temperature in the original design. designed to lay a reasonable balance for the amount of death base Tuo I. At the same time do a good job saving design, in order to ensure a reasonable balance of energy. * {7
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