CN205332415U

CN205332415U - Low temperature dehumidifier of adjustable defrosting volume

Info

Publication number: CN205332415U
Application number: CN201520993678.4U
Authority: CN
Inventors: 林杰
Original assignee: Tellhow Sci Tech Co Ltd
Current assignee: Tellhow Sci Tech Co Ltd
Priority date: 2015-12-05
Filing date: 2015-12-05
Publication date: 2016-06-22
Anticipated expiration: 2025-12-05

Abstract

The utility model discloses a low temperature dehumidifier of adjustable defrosting volume, characterized by connects fin condenser by compressor exhaust high temperature high pressure steam all the way, and fin condenser connects the cistern, and drier -filter is connected to the cistern, and drier -filter connects the expansion valve, and liquid separation head is connected to the expansion valve, and liquid separation head connects fin evaporator, another way is through flow control valve, reentrant fin evaporator, get back to the compressor after the fin evaporator evaporation, temperature and humidity sensor, defrosting temperature sensor, compressor, centrifugal fan, flow control valve are connected to the controller. The utility model provides a low temperature dehumidifier of adjustable defrosting volume can satisfy the defrosting requirement under the different temperatures, and the defrosting is not not thoroughly need stop compressor and changes in ambient temperature the time, chronic scheduling problem defrosts to have solved the unit defrosting of in the past dehumidifying.

Description

A kind of low temperature dehumidification machine of scalable defrosting amount

Technical field

This utility model relates to a kind of low temperature dehumidification machine, is specially the low temperature dehumidification machine of a kind of scalable defrosting amount。

Background technology

At present, the low temperature defrosting of dehumidifying unit, often by the operation stopping compressor, utilizes blower ventilation to defrost, so easily cause the frequent starting of compressor, the situation of unit dehumidifying effect decline produces, and due to the impact by ambient temperature, it is easy to cause defrosting not thorough, affect unit operation。This invention provides for the low temperature dehumidification machine of a kind of scalable defrosting amount, can when varying environment temperature, actual temperature according to evaporator fin, utilizes the uninterrupted of Flow-rate adjustment valve regulation bypass, makes unit meet the defrosting requirement at varying environment temperature。

Summary of the invention

The purpose of this utility model there are provided the low temperature dehumidification machine of a kind of scalable defrosting amount, can when varying environment temperature, actual temperature according to evaporator fin, utilizes the uninterrupted of Flow-rate adjustment valve regulation bypass, makes unit meet the defrosting requirement at varying environment temperature。Solve in the past dehumidifying unit defrosting need to stop when compressor and variation of ambient temperature defrosting not thoroughly, the problem such as defrosting time length。

The utility model is achieved like this, a kind of low temperature dehumidification machine of scalable defrosting amount, including Temperature Humidity Sensor, evaporator fin, fin condenser, flow control valve, liquid-dividing head, expansion valve, liquid reservoir, compressor, device for drying and filtering, centrifugal blower, controller, it is characterized in that: the high temperature and high pressure steam discharged by compressor, one tunnel connects fin condenser, fin condenser connects liquid reservoir, liquid reservoir connects device for drying and filtering, device for drying and filtering connects expansion valve, expansion valve connects liquid-dividing head, and liquid-dividing head connects evaporator fin；Another bypass, through flow control valve, enters back into evaporator fin；Compressor is returned to after evaporator fin evaporates；Described defrosting temperature sensor is arranged on evaporator fin, after humid air is cooled by evaporator fin, temperature is reduced to below dew point temperature, precipitate out and condense water, the water capacity making air reduces, and then passes through fin condenser, humid air by etc. discharged by centrifugal blower after wet heating, the air themperature discharged raises, and relative humidity reduces；Temperature Humidity Sensor, defrosting temperature sensor, compressor, centrifugal blower, flow control valve are all connected to controller。

During unit operation, the higher pressure refrigerant gas that compressor is discharged sequentially passes through liquid reservoir, device for drying and filtering after air-cooled condenser condenses, vaporizer is entered then through heating power expansion valve after throttling, in vaporizer, absorb extraneous air heat of vaporization and become the refrigerant vapour of low pressure, after refrigerant vapour passes through gas-liquid separator, then it is compressed by compressor suction, thus completing a kind of refrigeration cycle。

After humid air is cooled by vaporizer, temperature is reduced to below dew point temperature, precipitates out and condenses water, the water capacity making air reduces, and then passes through air-cooled condenser, humid air by etc. discharged by blower fan after wet heating, the air themperature discharged raises, and relative humidity reduces, thus reaching effect on moisture extraction。

When reaching defrosting condition, bypass flow control valve is opened, compressor air-discharging end high temperature refrigerant gas enters vaporizer by bypass and mixes with two phase refrigerant in vaporizer, in the continuous sucking process of compressor, mixed cold-producing medium is distributed to evaporator coil inner passage, by heat dissipation to frost layer, plays defrosting effect, flow control valve also can be automatically adjusted the size of bypass flow according to fin frosting degree, meets the requirement of defrosting。

Of the present utility model have technical effect that, provide the low temperature dehumidification machine of a kind of scalable defrosting amount, can when varying environment temperature, the actual temperature according to evaporator fin, utilize the uninterrupted of Flow-rate adjustment valve regulation bypass, make unit meet the defrosting requirement at varying environment temperature。

Accompanying drawing explanation

Fig. 1 is systematic schematic diagram of the present utility model。

In the drawings: 1, Temperature Humidity Sensor 2, evaporator fin 3, defrosting temperature sensor 4, liquid-dividing head 5, flow control valve 6, expansion valve 7, compressor 8, device for drying and filtering 9, liquid reservoir 10, fin condenser 11, centrifugal blower 12, controller。

Detailed description of the invention

As shown in Figure 1, this utility model includes Temperature Humidity Sensor (1), evaporator fin (2), defrosting temperature sensor (3), liquid-dividing head (4), flow control valve (5), expansion valve (6), compressor (7), device for drying and filtering (8), liquid reservoir (9), fin condenser (10), centrifugal blower (11), controller (12), it is characterized in that the high temperature and high pressure steam discharged by compressor 7, one tunnel connects fin condenser 10, fin condenser 10 connects liquid reservoir 8, liquid reservoir 8 connects device for drying and filtering 8, device for drying and filtering 8 connects expansion valve 6, expansion valve 6 connects liquid-dividing head 4, liquid-dividing head 4 connects evaporator fin 2；Another bypass, through flow control valve 5, enters back into evaporator fin 2；Compressor 7 is returned to after evaporator fin 2 evaporates；Defrosting temperature sensor 1 is arranged on evaporator fin 2, after humid air is cooled by evaporator fin (2), temperature is reduced to below dew point temperature, precipitate out and condense water, the water capacity making air reduces, and then passes through fin condenser 10, humid air by etc. discharged by centrifugal blower 11 after wet heating, the air themperature discharged raises, and relative humidity reduces；Temperature Humidity Sensor 1, defrosting temperature sensor 3, compressor 7, centrifugal blower 11, flow control valve 5 are all connected to controller 12。

Claims

1. the low temperature dehumidification machine of a scalable defrosting amount, including Temperature Humidity Sensor, evaporator fin, fin condenser, flow control valve, liquid-dividing head, expansion valve, liquid reservoir, compressor, device for drying and filtering, centrifugal blower, controller, it is characterized in that: the high temperature and high pressure steam discharged by compressor, one tunnel connects fin condenser, fin condenser connects liquid reservoir, liquid reservoir connects device for drying and filtering, device for drying and filtering connects expansion valve, expansion valve connects liquid-dividing head, and liquid-dividing head connects evaporator fin；Another bypass, through flow control valve, enters back into evaporator fin；Compressor is returned to after evaporator fin evaporates；Defrosting temperature sensor is arranged on evaporator fin, after humid air is cooled by evaporator fin, temperature is reduced to below dew point temperature, precipitate out and condense water, the water capacity making air reduces, and then passes through fin condenser, humid air by etc. discharged by centrifugal blower after wet heating, the air themperature discharged raises, and relative humidity reduces；Temperature Humidity Sensor, defrosting temperature sensor, compressor, centrifugal blower, flow control valve are all connected to controller。