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Componentes de las instalaciones frigoríficas
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17-3-2023 COMPONENTESDE LA
SINSTALACIONES
FRIGORÍFICAS
EINT
JESÚS MAZARIEGOS GUADAMURO
,Contenido
Válvula inversora ........................................................................................................................... 4
................................................................................................................................................... 4
Posición invierno verano ........................................................................................................... 5
Sistemas de expansión para bombas de calor .......................................................................... 6
Accionamiento .......................................................................................................................... 7
Misión de la válvula ................................................................................................................... 7
Esquema de máquina frigorífica completa ................................................................................... 8
Compresor ..................................................................................................................................... 9
Misión ........................................................................................................................................ 9
Funcionamiento .................................................................................................................... 9
Tipos de compresores ............................................................................................................... 9
Según su funcionamiento ........................................................................................................ 10
Lubricación de compresores ............................................................................................... 11
Elementos y seguridades......................................................................................................... 11
Tipos de aceite ........................................................................................................................ 12
Tipos de fluidos ........................................................................................................................... 12
Fluidos frigoríficos ................................................................................................................... 12
Clasificación según química ................................................................................................. 12
Clasificación según mezcla ...................................................................................................... 13
Clasificación según su seguridad ............................................................................................. 13
Nomenclatura.......................................................................................................................... 14
Arranque de compresores ........................................................................................................... 14
Monofásicos ............................................................................................................................ 14
Relé de intensidad ............................................................................................................... 14
PTC ....................................................................................................................................... 15
Arranque con relé de tensión .............................................................................................. 16
Trifásicos .................................................................................................................................. 17
Regulación de compresores ........................................................................................................ 22
Métodos .................................................................................................................................. 22
Variador de frecuencia en el compresor ............................................................................. 22
Anular un pistón .................................................................................................................. 22
Separador de aceite .................................................................................................................... 23
Válvula automática de agua ........................................................................................................ 23
Recipiente de líquido ................................................................................................................... 24
Filtro deshidratador..................................................................................................................... 24
1
Jesús Mazariegos Guadamuro
,Mirilla .......................................................................................................................................... 25
Válvula manual ............................................................................................................................ 25
Electroválvula .............................................................................................................................. 26
Expansión .................................................................................................................................... 26
Sistemas................................................................................................................................... 26
Fijos ..................................................................................................................................... 26
Termostáticos ...................................................................................................................... 26
Válvulas presostáticas.................................................................................................................. 28
Bibliografía .................................................................................................................................. 30
2
Jesús Mazariegos Guadamuro
, COMPONENTES
DE LAS
INSTALACIONES
FRIGORÍFICAS
3
Jesús Mazariegos Guadamuro
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