Heat-pump air conditioner having dehumidification function

Abstract

A heat-pump air conditioner having a dehumidification function comprises a heat-pump host (1), a cooling/heating circulation system (2), an indoor heat exchanger (3) and an indoor dehumidifier with adjustable temperature (4), wherein the heat-pump host (1) comprises a compressor (11), a first heat exchanger (12), a fan (13), a second heat exchanger, a four-way valve (14) and an expansion valve (15), and the cooling/heating circulation system (2) comprises a supply cooling/heating pipeline (21), a return cooling/heating pipeline (22), a third heat exchanger, a water distribution and collection device (23) and a circulating water pump (24). A cooling function of the dehumidifier with adjustable temperature (4) and the heat-pump host (1) works in conjunction with temperature adjustment and dehumidification, which achieves a synergetic effect.

1 . A heat pump air conditioner with a dehumidifying function, comprising a heat pump host, a supply cooling/heating circulation system, an indoor heat exchanger and a dehumidifier with adjustable temperature located in a room,
 wherein said heat pump host comprises a compressor, a first heat exchanger, a fan, a second heat exchanger, a four-way valve and an expansion valve, and said supply cooling/heating circulation system comprises a supply cooling/heating pipeline, a return cooling/heating pipeline, a third heat exchanger, a water distribution and collection device and a circulating water pump, in which said second and third heat exchangers are coupled into a dual-flow-channel heat exchanger, and said indoor heat exchanger is in fluid communication with said water distribution and collection device after being connected with said dehumidifier with adjustable temperature in series or said indoor heat exchanger and said dehumidifier with adjustable temperature are respectively connected with said water distribution and collection device, and in which said dehumidifier with adjustable temperature works after said supply cooling/heating circulation system.   
     
     
         2 . The heat pump air conditioner according to  claim 1 , wherein said dehumidifier with adjustable temperature comprises a cabinet and within said cabinet are provided an indoor dual-flow-channel heat exchanger, an indoor compressor, an indoor evaporator, an indoor fan, an indoor expansion valve and a defrosting tray in which said indoor dual-flow-channel heat exchanger is constituted by a fourth heat exchanger and an indoor condenser and said defrosting tray is located below said indoor evaporator, and
 wherein said fourth heat exchanger is connected with said water distribution and collection device or said fourth heat exchanger and said indoor heat exchanger are connected in series, and said indoor compressor is connected with said indoor evaporator and said indoor condenser through the refrigerant pipe provided in said cabinet.   
     
     
         3 . The heat pump air conditioner according to  claim 2 , wherein an air inlet and an air outlet are formed on said cabinet in which said air inlet and said air outlet are in fluid communication to form a circulation loop, and
 wherein said air outlet corresponds to the outlet of said indoor fan, said indoor evaporator is provided at the inlet of said indoor fan, and said air outlet is provided at the outlet of said indoor fan.   
     
     
         4 . The heat pump air conditioner according to  claim 2 , wherein said dehumidifier with adjustable temperature further comprises an indoor four-way valve located on said refrigerant pipe. 
     
     
         5 . The heat pump air conditioner according to  claim 1 , wherein said dehumidifier with adjustable temperature is in fluid communication with the pipe between said indoor heat exchanger and said water distribution and collection device. 
     
     
         6 . The heat pump air conditioner according to  claim 1 , wherein there are a plurality of said dehumidifiers with adjustable temperature which are arranged in the same room or in different rooms, and said plurality of said dehumidifiers with adjustable temperature are connected with said water distribution and collection device respectively. 
     
     
         7 . The heat pump air conditioner according to  claim 1 , wherein said heat pump host further comprises a main controller, said supply cooling/heating pipeline is provided with a supply cooling/heating temperature sensor, and an indoor temperature and humidity controller is provided in a room in which said main controller is connected respectively to said compressor, said supply cooling/heating temperature sensor and said indoor temperature and humidity controller,
 wherein said indoor temperature and humidity controller is used to obtain the indoor temperature and humidity signal or dew point temperature, and send said temperature and humidity signal to said main controller, and said main controller is used to obtain said indoor dew point temperature based on said temperature and humidity signal,   wherein said supply cooling/heating temperature sensor is used to obtain the supply cooling/heating temperature on said supply cooling/heating pipeline and to send said cooling/heating temperature to said main controller, and   wherein said main controller is used to control the operating parameters of said compressor so that said cooling/heating temperature is above said dew point temperature.   
     
     
         8 . The heat pump air conditioner according to  claim 2 , wherein said indoor heat exchanger is located in said cabinet. 
     
     
         9 . The heat pump air conditioner according to  claim 1 , wherein stop valves are provided with said supply cooling/heating pipeline and said return cooling/heating pipeline respectively. 
     
     
         10 . The heat pump air conditioner according to  claim 1 , wherein the medium for transferring energy within said supply cooling/heating circulation system is a refrigerant or water.