CN209165864U - A kind of anti-caking defrosting system of cooled dehumidifier unit at 0 DEG C - Google Patents

Abstract

The anti-caking defrosting system that the utility model discloses a kind of cooled dehumidifier units at 0 DEG C, including compressor, condenser and evaporator, the exhaust pipe of compressor is connect with condenser one end, the muffler of compressor and one end of evaporator connect, the other end of the condenser other end and evaporator is connected by connecting tube, condenser is identical with the heat dissipation area of evaporator, it further include auxiliary cold-hot machine, main capillary group, assisted capillary group and check valve, assist the heat dissipation area of cold-hot machine for the half of condenser or evaporator heat dissipation area, connecting tube is successively arranged the first solenoid valve and main capillary group along condenser to evaporator direction, one end of condenser connection connecting tube also passes through pipeline and connect with auxiliary cold-hot machine, the pipeline that condenser is connect with auxiliary cold-hot machine is equipped with second solenoid valve.Anti-caking defrosting system of the cooled dehumidifier unit at 0 DEG C is not influencing that frosting can be prevented under the premise of wet-out property does not increase energy consumption again.

Description

A kind of anti-caking defrosting system of cooled dehumidifier unit at 0 DEG C

Technical field:

The anti-caking defrosting system that the utility model relates to a kind of cooled dehumidifier units at 0 DEG C.

Background technique:

With the improvement of people's life quality, the more and more dehumidifiers of demand.Dehumidifier product was greatly developed in recent years, Also the development of purification relevant industries is driven.

Dehumidifier currently on the market is broadly divided into domestic type and industrial, other professional, however whether which kind of class The market occupancy volume of type dehumidifier, principle refrigeration type dehumidifier all accounts for absolute quantity；However the key of principle refrigeration type dehumidifier Component is two devices, i.e. evaporator and condenser.And two devices of frozen type dehumidifier currently on the market can not be low in environment temperature In 5 DEG C or less work (operational effect at even 5 DEG C is also very poor) well, what is showed is exactly serious in evaporator surface Frosting can not adapt to the environment of lower temperature but humidity, since frozen type dehumidifier has such localized character to limit it Application environment.Influence dehumidifier performance is exactly mainly to occur frost on fin, and high frequent start and stop are not achieved quickly The purpose of dehumidifying.There are three ways to solution frosting that industry uses at present, but these types of mode or be passive-type, or Neng Consumption increases a lot or is exactly to sacrifice wet-out property；The Defrost mode taken at present has compressor shutdown evaporator fin mistake Wind defrosting, the preposition ptc heater of evaporator promote inlet air temperature, bypass back the temperature that liquid technology increases evaporator fin.Compression Machine shuts down evaporator fin and crosses wind defrosting, and this Defrost mode belongs to passive defrosting, sensor is needed to detect the temperature of fin After -6 DEG C, control system forces compressor shutdown but blower does not stop, and allows the wind of flowing will be white, ice melting, when it melts Compressor is switched on again after changing, whole system task again.The fixation of defrosting time, either 5 minutes or 10 minutes Or the longer time, but after whole system task again, fin again can frosting at once, often defrosting time, which is far longer than, removes The wet time.

The temperature that liquid technology increases evaporator fin is bypassed back, this mode is to prevent frosting actively, specific implementation It is the connection of U 1~2 group long pipe and condenser of evaporator, takes the heat of condenser to evaporator fin, make evaporator temperature It increases, frosting is actively prevented to occur；But due to having used 1~2 group of evaporator of copper pipe and neighbouring fin, cause evaporator solidifying The fin area born water reduces very much, and wet-out property is had a greatly reduced quality.

The preposition ptc heater of evaporator promotes inlet air temperature, this mode be prevent frosting actively, and effect compared with Both the above method the shortcomings that be all not present, but the air quantity of general frozen type dehumidifier is bigger, if buying PTC is preposition Heating, significantly the energy consumption of increased equipment, the heat that heater generates in addition are discharged to the bigger cooling capacity equilibrium of indoor needs, The energy consumption of extraneous refrigeration system is also increased, it is very undesirable.

Utility model content:

It is not influencing wet-out property technical problem to be solved by the utility model is to provide a kind of and is not increasing energy consumption Under the premise of prevent anti-caking defrosting system of the cooled dehumidifier unit of frosting at 0 DEG C.

The technical solution of the utility model is to provide a kind of anti-caking defrosting system of cooled dehumidifier unit at 0 DEG C, including The exhaust pipe of compressor, condenser and evaporator, compressor is connect with condenser one end, the muffler of compressor and evaporator The other end of one end connection, the condenser other end and evaporator is connected by connecting tube, the heat dissipation area of condenser and evaporator It is identical, further include auxiliary cold-hot machine, main capillary group, assisted capillary group and check valve, assists the heat dissipation area of cold-hot machine to be The half of condenser or evaporator heat dissipation area, connecting tube are successively arranged the first solenoid valve and master to evaporator direction along condenser Capillary group, one end of condenser connection connecting tube also pass through pipeline and connect with auxiliary cold-hot machine, condenser and auxiliary cold-hot machine The pipeline of connection is equipped with second solenoid valve, and the both ends of assisted capillary group are connected to the pipeline at second solenoid valve both ends On, the auxiliary cold-hot machine other end and compressor pass through piping connection.The connecting line of cold-hot machine and compressor is assisted to be equipped with the Three solenoid valves are also connected with auxiliary piping on the connecting line between the first solenoid valve and main capillary group, and auxiliary piping is another It holds and is connect with one end of auxiliary cold-hot machine connect compressor.

After using the above structure compared with prior art, the utility model have the advantage that by auxiliary cold-hot machine and The cooperation of each solenoid valve and check valve is artificially switched (winter, summer switch) or automatic using the control system of dehumidifying machine equipment Switching (feeds back switching after detection temperature value)；In this way, auxiliary cold-hot machine serves as evaporator after being switched to summer；It is switched to winter Afterwards, auxiliary cold-hot machine serves as condenser；Since the inlet air temperature of summer is high, even up to 38 DEG C, after hot-air passes through evaporator Temperature is about 28 DEG C, and the heating ability of condenser is 15 DEG C, and outlet temperature reaches 43 DEG C, and outlet temperature is crossed higher position and needed more More cold balancings, both ends energy consumption is all serious, so summer need not be again in front end auxiliary cold-hot machine heating；When winter, due to Compressor discharge refrigerant fully enter front end auxiliary cold-hot machine, and actually compressor discharge refrigerant needed for heat dissipation area Only need rear end condenser just enough, assisting the heat dissipation area of cold-hot machine is the 1/2 of condenser, then heating efficiency is also condensation The 1/2 of device, so front end auxiliary cold-hot machine heating efficiency is 7.5 DEG C.When this system can fully achieve 5 DEG C of air inlet frost-frees, 0 DEG C It is frostless to enter the wind fin, wherein when 0 DEG C of air inlet, temperature is thus lifted to after 7.5 DEG C, and the temperature difference of the refrigerant in evaporator is -10 DEG C, 7.5 DEG C -10 DEG C=- 2.5 DEG C, and -5 DEG C of fin surface temperature will -5 DEG C of frosting, -2.5 DEG C of fin temperature and frosting temperature 2.5 DEG C of difference, can be achieved in this way 0 DEG C of air inlet fin surface also can frost-free, at 0 DEG C compressor also can continuous service, will not Into defrosting mode, far superior to 5 DEG C of industry are entered the wind, -6 DEG C of designs into defrosting mode, between frosting and defrosting only only There is 1 DEG C of temperature difference, and the precision of the ordinary temp sensor for the machine equipment assembly that many times dehumidifies also only has ± 1 DEG C.

Preferably, main capillary group includes Multi-path capillary, assisted capillary group includes same amount of capillary, main Capillary Zu Mei road capillary is equal with assisted capillary Zu Mei road capillary inner diameter, and main capillary group enters evaporator Cold medium flux and the assisted capillary group of every road capillary to enter the cold medium flux of every road capillary of auxiliary cold-hot machine equal.

Detailed description of the invention:

Fig. 1 is the summer operation flow chart of the utility model.

Fig. 2 is the winter operation flow chart of the utility model.

Specific embodiment:

The utility model is described in further detail with reference to the accompanying drawings and detailed description:

As illustrated in fig. 1 and 2, anti-caking defrosting system of a kind of cooled dehumidifier unit at 0 DEG C, including compressor 1,2 and of condenser 3 devices are evaporated, the exhaust pipe of compressor 1 is connect with 2 one end of condenser, and the muffler of compressor 1 is connect with one end of evaporator 2, 2 other end of condenser is connect with the other end of evaporator 3 by connecting tube 4, and condenser 2 is identical with the heat dissipation area of evaporator 3, It further include auxiliary cold-hot machine 5, main capillary group 6, assisted capillary group 7 and check valve 8, the heat dissipation area of auxiliary cold-hot machine 5 is The half of condenser or evaporator heat dissipation area, connecting tube 4 are successively arranged the first solenoid valve V1 along condenser to evaporator direction With main capillary group 6, condenser 2 connect connecting tube one end also pass through pipeline with assist cold-hot machine 5 connect, condenser 2 with it is auxiliary The pipeline for helping cold-hot machine to connect is equipped with second solenoid valve V2, and the both ends of assisted capillary group 7 are connected to second solenoid valve On the pipeline at both ends, auxiliary 5 other end of cold-hot machine and compressor 1 pass through piping connection.Assist the connection of cold-hot machine 5 and compressor Pipeline is equipped with third solenoid valve V3, is also connected with auxiliary on the connecting line between the first solenoid valve V1 and main capillary group 6 Pipeline 9,9 other end of auxiliary piping are connect with one end of auxiliary cold-hot machine connect compressor.In actual operation, pipeline mutually interconnects Socket part point can select connector to be connected with each other, such as triple valve.

Preferably, main capillary group 6 includes Multi-path capillary, assisted capillary group 7 includes same amount of capillary, Every road capillary of main capillary group 6 and every road capillary inner diameter of assisted capillary group 7 are equal, and main capillary group 6 enters The cold medium flux and assisted capillary group 7 of every road capillary of evaporator enter the cold medium flux of every road capillary of auxiliary cold-hot machine It is equal.

This system working principle is as follows, when summer (by taking 30 DEG C of air inlet, 80%RH as an example), the first solenoid valve V1, the second electricity Magnet valve V3 is opened, and second solenoid valve V2 is closed, and compressor 1 enters condenser 2 after refrigerant pressurizes, and refrigerant condenses within the condenser Afterwards, pressure becomes 1.68MPa, and 2/3 condensed refrigerant enters evaporator by the first solenoid valve V1, main capillary group 6 later 3, while condensed 1/3 refrigerant enters auxiliary cold-hot machine 5 by assisted capillary group, the refrigerant after evaporation converge after by the Three solenoid valve V3 return to compressor 1；(air inlet is by taking 0 DEG C, 95%RH as an example), the first solenoid valve V1, third solenoid valve V3 when winter It closes, second solenoid valve V2 is opened, and compressor 1 enters condenser 2 after refrigerant pressurizes, and pressure becomes 1.68MPa, and refrigerant is cold All enter auxiliary cold-hot machine 5 by second solenoid valve V2 after condensing in condenser, it is empty to air inlet that auxiliary cold-hot machine 5 serves as condenser Gas heating, air are heated to 7.5 DEG C, by assisting the refrigerant of cold-hot machine to enter evaporator after main capillary group；Evaporation Device 3 cooling to -2.5 DEG C just through the air for being heated to 7.5 DEG C again, and then refrigerant outflow evaporator returns to compressor 1.

And 5-38 DEG C of dehumidifier in industry, it can also be discharged by defrost at 5 DEG C, then temperature is at 0 DEG C, completely Lose dehumidifying effect.

This system can be applied to using compressor as in the dehumidifier system of power core evaporative condenser principle, dehumidifier industry It is interior to have furred ceiling dehumidifier, industrial dehumidifier, domestic dehumidifying machine and the refrigerant of applied compression machine discharge at present to realize the machine of dehumidifying Group can apply this system, and the dehumidifier of this system of arranging in pairs or groups, application range is wider, and current dehumidifier cannot be used for fresh-keeping mostly 0-5 DEG C of library, even if there is the effect using performance also very poor, the defrost time has accounted for 60%, and dehumidifying effect can only also rely on defrost It is discharged, this system evaporator heat dissipation area increases, and similarly hydrophilic fin area increases, and improves equipment in there was dampness in the air time The dehumidifying effect of section 10%.

Only the utility model preferred embodiment is described above, but is not to be construed as the limit to claim System.All equivalent structure or equivalent flow shifts done using the utility model specification and accompanying drawing content are included in this Within the scope of patent protection of utility model.

Claims (2)

1. a kind of anti-caking defrosting system of cooled dehumidifier unit at 0 DEG C, including compressor, condenser and evaporator, the row of compressor Tracheae is connect with condenser one end, and one end of the muffler of compressor and evaporator connects, the condenser other end and evaporator The other end is connected by connecting tube, it is characterised in that: condenser is identical with the heat dissipation area of evaporator, further includes that auxiliary is cold and hot Device, main capillary group, assisted capillary group and check valve, assisting the heat dissipation area of cold-hot machine is condenser or evaporator radiating surface Long-pending half, connecting tube are successively arranged the first solenoid valve and main capillary group, condenser connection along condenser to evaporator direction One end of connecting tube also passes through pipeline and connect with auxiliary cold-hot machine, and the pipeline that condenser is connect with auxiliary cold-hot machine is equipped with second Solenoid valve, the both ends of assisted capillary group are connected on the pipeline at second solenoid valve both ends, auxiliary the cold-hot machine other end with Compressor assists the connecting line of cold-hot machine and compressor to be equipped with third solenoid valve by piping connection, the first solenoid valve and Auxiliary piping is also connected on connecting line between main capillary group, the auxiliary piping other end connect compression with auxiliary cold-hot machine One end of machine connects.

2. anti-caking defrosting system of the cooled dehumidifier unit according to claim 1 at 0 DEG C, it is characterised in that: main capillary group Including Multi-path capillary, assisted capillary group includes same amount of capillary, main capillary Zu Mei road capillary and auxiliary The road capillary Zu Mei capillary inner diameter is equal, and main capillary group enter the cold medium flux of every road capillary of evaporator with it is auxiliary The cold medium flux for helping capillary group to enter every road capillary of auxiliary cold-hot machine is equal.