CN2660364Y

CN2660364Y - Indoor machine of air pipe blowing type air conditioner

Info

Publication number: CN2660364Y
Application number: CN 200320113155
Authority: CN
Inventors: 饶荣水; 周泽; 申建军; 余海霞
Original assignee: HENAN XINFEI ELECTRIC CO Ltd
Current assignee: HENAN XINFEI ELECTRIC CO Ltd; Henan Xinfei Electric Group Co Ltd
Priority date: 2003-10-30
Filing date: 2003-10-30
Publication date: 2004-12-01
Anticipated expiration: 2013-10-30

Abstract

An indoor unit of an air-conditioner, the air of which is supplied by an air duct, belongs to the air-conditioner technical field. A refrigerating loop of the indoor unit orderly communicates with an expansion valve and an evaporator. In front of the expansion valve, a liquid inlet pipe is in series with an electromagnetic valve. The loop is also connected with a reheater, an inlet pipe of which is in series with a flow regulating valve, an inlet of which communicates with an inlet of the electromagnetic valve by a pipeline. The outlet of the reheater communicates with an inlet of the expansion valve by a pipeline. The reheater is placed in the inner side of the evaporator and is paratactic with the evaporator. Using the utility model can reheat and dehumidify the indoor air without using additional energy sources and reducing the indoor air temperature to realize an ordinary refrigerating function, a large scale dehumidifying function and a different-degree dehumidifying function.

Description

The air duct blow type indoor machine of air conditioner

Technical field

The utility model belongs to air-conditioning technical field, and particularly a kind of indoor temperature that do not reduce can be carried out the air duct blow type indoor machine of air conditioner of heat dehumidifying again to room air.

Background technology

Existing air duct blow type indoor machine of air conditioner structure and refrigeration principle are as shown in Figure 1 and Figure 2, during the work of air-conditioner unit, the high pressure liquid refrigerant that condenser is discharged expands by feed tube 4, through expansion valve 50 and enters evaporimeter 13 with the gas-liquid mixture form through inlet pipe 51, under blower fan 7 effects, carry out heat exchange with room air, the heat that absorbs air becomes gaseous refrigerant, return compressor through cold-producing medium tracheae 5, room air is lowered the temperature finishes the part dehumidifying simultaneously.11 is motor fan.For realizing dehumidifying significantly, must adopt low temperature dehumidification, to reduce the surface temperature of evaporator coil, make and produce more condensed water on the coil pipe, make the air sub-cooled simultaneously.Dehumidification rate is not high like this, and the cold wind of sending simultaneously makes us uncomfortable.If make room air return to comfortable temperature, must consume the extra energy.Chinese patent ZL01215882.8 has proposed a kind of hidden airduct indoor apparatus of air conditioner, and this indoor set has remote air-supply, can regulate the temperature of big space room rapidly, can be in casing induced draft, but do not solve the dehumidifying problem equally.

The utility model content

The purpose of this utility model is to provide a kind of indoor air temperature that do not reduce to carry out the air duct blow type indoor machine of air conditioner of heat dehumidifying again to room air.

For reaching above-mentioned purpose, the utility model adopts following technical scheme: the air duct blow type indoor machine of air conditioner, be communicated with expansion valve and evaporimeter in its refrigerating circuit successively, and be in series with magnetic valve on the feed tube of expansion valve front; Also be connected with reheater on this loop, the flow control valve import of connecting on the reheater inlet pipe is communicated with the magnetic valve import by pipeline, and the reheater outlet is communicated with the expansion valve import by pipeline; Reheater is positioned at the evaporimeter inboard and is set up in parallel with evaporimeter.

Expansion valve is capillary, heating power expansion valve or electric expansion valve.

Blower fan is installed in the inboard of evaporimeter and reheater.

Air outlet is 1-3.

The utility model is divided into evaporimeter and reheater two parts to existing air duct blow type indoor machine of air conditioner heat exchanger, during air conditioner work, room air passes through evaporimeter earlier, pass through reheater again, originally discharge outdoor heat and utilized, under the condition that does not consume additional energy source, remove airborne moisture when realizing not reducing indoor air temperature by reheater, it is dry and comfortable to reach room air, improves indoor air environment.Can realize high-power hot again dehumidification function by closing magnetic valve; Opening under the magnetic valve situation by regulating the flow control valve opening degree, can regulate the flow of the cold-producing medium that enters reheater, thus the moisture removal of control air and the temperature of air.

Description of drawings

Fig. 1 is existing air duct blow type indoor machine of air conditioner structural representation;

Fig. 2 is the refrigeration principle schematic diagram of existing air duct blow type indoor machine of air conditioner;

Fig. 3 is the utility model air duct blow type indoor machine of air conditioner structural representation;

Fig. 4 is the refrigeration principle schematic diagram of the utility model air duct blow type indoor machine of air conditioner

Fig. 5 is embodiment 2 structural representations.

The specific embodiment

Embodiment 1, have the air duct blow type indoor machine of air conditioner of hot dehumidification function, the casing middle front part is equipped with heat exchanger, rear portion, and

blower fan

7,11 is installed is blower motor again, and 10 is conveyer belt, and 8 is fan outlet.4 is the cold-producing medium inlet pipe, and 5 for cold-producing medium goes out pipe, and 12 is electric cabinet, and 1 for being installed on the air intake screen pack of indoor set front air inlet.Heat exchanger is divided into evaporimeter 13 and reheater 14 two parts that are arranged side by side, and reheater 14 is positioned at evaporimeter 13 inboards, is provided with drip tray and drainpipe below the heat exchanger.Be communicated with expansion valve 50, evaporimeter 13, compressor and condenser in its refrigerating circuit successively.Be in series with magnetic valve 17 on the expansion valve 50 front feed tubes.Also be connected with reheater 14 on this loop, flow control valve 20 imports of connecting on reheater 14 inlet pipes are communicated with magnetic valve 17 imports by pipeline, and reheater 14 outlets are communicated with expansion valve 50 imports by pipeline 18.Room air flows through evaporimeter 13 earlier along the direction shown in 52, again by reheater 14.Cold-producing medium in the feed tube 4 is divided into 15 and 16 liang of branch roads, and wherein the cold-producing medium of 16 branch roads links to each other with reheater 14 by flow control valve 20, and gets back to tube connector 19 by tube connector 18; Wherein the cold-producing medium of 15 branch roads merges in the pipeline 19 by the liquid back pipes 18 of magnetic valve 17 back with reheater, and the sub-cooled liquid refrigerant after converging enters evaporimeter 13 after by expansion valve 50.

At first the cold-producing medium of big supercooling degree carries out heat exchange at evaporimeter 13 positions to room air with having very under the effect of blower fan 7, reduces temperature, separates out a large amount of condensed waters simultaneously, becomes supercooled air.Supercooled air flows to reheater 14, carries out heat exchange with cold-producing medium, and the temperature of cold-producing medium reduces, and the temperature of air raises, and has reduced relative humidity in the time of atmosphere temperature rising.By the layout of evaporimeter 13 and reheater 14, realized again hot dehumidification function in the air duct blow type air-conditioning unit room.By the different open degree of control flow control valve 20 and the switch of magnetic valve 17, can control flow by the cold-producing medium of reheater, the different moisture removal of control room air realize dehumidifying in various degree.Guarantee the comfort temperature of room air simultaneously.

When needs carry out the high-power dehumidifying of system, close magnetic valve 17, flow control valve 20 is reached maximum, liquid refrigerant from cold-producing medium inlet pipe 4 all enters reheater 14 by arm 16 and flow control valve 20, and enter expansion valve 50 by tube connector 18,19 and carry out throttling, gas-liquid mixture after the throttling enters evaporimeter 13 and carries out heat exchange with room air, and the gaseous refrigerant after the heat absorption goes out pipe 5 by cold-producing medium and gets back to compressor.Expansion valve 50 can adopt capillary, heating power expansion valve, electromagnetic expanding valve etc.In reheater 14, cold-producing medium with carry out heat exchange by the Cryogenic air of evaporimeter 13, realized further cold excessively; Cold-producing medium is passed to Cryogenic air to heat simultaneously, and the temperature of air is raise, and reduces humidity.Originally be discharged from outdoor heat and utilized, eliminated the sub-cooled of air, realized heat dehumidifying again by reheater.Having very, the cold-producing medium of big supercooling degree enters the surface temperature that evaporimeter 13 can reduce evaporimeter 13 by expansion valve 50, and the surface temperature that makes evaporimeter 13 is significantly less than the dew point of air, realize low temperature dehumidification, can remove airborne moisture significantly, realized high-power dehumidifying.

By opening magnetic valve 17, close flow control valve 20, cold-producing medium does not enter reheater 14, all enters evaporimeter 13, realizes common refrigerating function.At this moment, not influence of 14 pairs of common refrigerating functions of reheater.

In embodiment 2, the present embodiment, blower fan 7 is installed in the opposite side of the heat exchanger of evaporimeter 13 and reheater 14 formations, promptly is positioned at the upstream of heat exchanger.Other are with embodiment 1.

Claims

1, air duct blow type indoor machine of air conditioner is communicated with expansion valve and evaporimeter successively in its refrigerating circuit, it is characterized in that, is in series with magnetic valve on the feed tube of expansion valve front; Also be connected with reheater on this loop, the flow control valve import of connecting on the reheater inlet pipe is communicated with the magnetic valve import by pipeline, and the reheater outlet is communicated with the expansion valve import by pipeline; Reheater is positioned at the evaporimeter inboard and is set up in parallel with evaporimeter.

2, air duct blow type indoor machine of air conditioner as claimed in claim 1 is characterized in that, expansion valve is capillary, heating power expansion valve or electric expansion valve.

3, air duct blow type indoor machine of air conditioner as claimed in claim 1 or 2 is characterized in that, blower fan is installed in the inboard of evaporimeter and reheater.

4, air duct blow type indoor machine of air conditioner as claimed in claim 3 is characterized in that, air outlet is 1-3.