Cold Dryer filters
Describe:
The cold drying filter is a kind of cleaning and drying parts to filter the moisture and impurity in refrigerant and keep the refrigeration system clean and dry. When refrigerant contains water and impurity, the system is prone to clog up, ice blocking and so on, thus blocking or partially blocking the refrigerant cycle, which makes the refrigerator lose its refrigeration capacity or the refrigeration effect becomes worse. The drying requirement of refrigeration system is very high and the moisture content in refrigerant per 1kg should not be higher than 20mg. so the drying filter plays an extremely important role in the refrigeration system.
From the aspect of appearance, there are two types of dry filter: single tube type and double tube type. The single-tube drying filter has only one inlet and one outlet. The double-tube drying filter has two entrances and one outlet.
Characteristics:
Water vapor in the air is condensed into water droplets through the principle of cooling. A small amount of oil and impurity can not be removed, so it is necessary to install the water vapor in the air.
The main function of drying filter is to absorb moisture and filter impurities. The dry filter has molecular sieve and filter net, which can absorb and filter the moisture, metal powder and dust contained in the refrigeration system, so as to clean the refrigerant or the compressed air.
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(2) The mode of high-yielding ponds in polyculture in ponds, 200-300 tails (30-50 g/tail) of high-yielding carp species in acre, and 250-350 g/tail.
(3) The main mode of breeding ponds for high-yield oysters, and 1000-1500 tails (30-50 g/tail) of high-yielding mullet species for acre breeding, with a specification of 250-350 g/tail.
Second, to master the characteristics of high-yield quail culture (1) The three pupa have food habits, good buy, good body color, full female, strong resistance, but the stocking mode affects the growth rate of high-yield quail and commercial fish specifications.
(2) It is not appropriate to raise grass carp, carp, and carp. If polyculture is required, in order to obtain a better outlet pond size, the amount of high yield pupa should be strictly controlled at 200-300 tails/mu (30-50 g/tail). In order to make full use of organic detritus and phytoplankton in ponds, filter-feeding fish carp and carp can be properly used. The feeding time of eel and eel is generally after the success of high-yield eel feeding. Otherwise, it will prolong the time of domestication. The selection of the eel and eel is the key to the success of breeding high-yield eel.
(3) The high-yielding crickets should choose proper stocking time whether they are polyculture or monoculture. The fish species that were released before April may reach the listed specifications in the same year and can be listed for sale. If it is after May, the seedlings will not be released. The listed specifications will not be available until the spring and summer of the following year. . Because the fertility breeder is all-male, even if it does not lay eggs, it will also spawn. A lot of spawning in the spring will affect the growth, slow down, even stagnate. After September, the seeds that were put in, because the individuals are small, do not spat normally in the spring of the leap year, and even if they have little eggs, they will not have much influence on growth. When the breeding season is over, they can grow normally.
(4) bait requirements and tame food. The diet used peanut meal, 1.5 mm diameter No. 1 or 2.5 mm diameter No. 2 extruded feed. Extruded feed mainly consists of peanut meal, and the protamine content is required to be above 28%, and fed duckweed with vitamin supplement. At the same time when feeding, the peanut meal is alternately fed with the expanded feed, adheres to a small number of times, increases the number of feedings, slows down the feeding rate, prolongs the time, and causes the fish to rise up and catch food, that is, tame food. , cracked mouth, grabbing food is not ferocious, multiple food intake and other characteristics.
The key to the success of breeding high-yield alfalfa
First, choose a suitable stocking mode (1) pond cultivation of high yield carp species model, in September to put summer flowers 4000-6000 tail / acre, the second year to develop specifications 30-50 grams / tail fish species.