A kind of water cooling ultra-low temp
It the utility model is related to Cord blood box technology field, and in particular to a kind of water cooling ultra-low temp.
Traditional ultra-low temp condenser radiating mode is air-cooled, and heat exchanger types are fin tube type, traditional cold
Condenser has the following disadvantages：1. heat exchange efficiency is low.2. blower fan produces noise in air-cooled heat transfer process, in view of ultra-low temp should
There is strict limitation to raw make an uproar with the limitation in field.3. because the technology restriction of super low temperature refrigeration industry, ultra-low temp are general
It is only 25 DEG C -32 DEG C to design circumstance temperature scope.Temperature in use band is rather narrow, and this operating temperature needs to be equipped with corresponding air-conditioning and set
It is standby to ensure.Above is referred to circumstance temperature band under, the energy consumption of ultra-low temp separate unit is very high.
Utility model content
The purpose of this utility model is to be directed to above-mentioned deficiency, it is proposed that one stage of compression system uses water cooled condenser, solution
Certainly existing finned cooler heat exchange efficiency is low, the big deficiency of noise, and the water cooling that heat can be taken to outdoor from interior is ultralow
Warm storage box.
The utility model specifically adopts the following technical scheme that：
A kind of water cooling ultra-low temp, including casing and double-compressor cascade refrigeration system, the double-compressor overlapping
Refrigeration system includes one stage of compression system and two-stage compression system, and progress is connected between one stage of compression system and two-stage compression system
The Intermediate Heat Exchanger of heat exchange, it is stage compressor that one stage of compression system includes being sequentially communicated, double pipe heat exchanger, finned
Heat exchanger and one-level capillary, the output end of one-level capillary are connected with Intermediate Heat Exchanger, are connected with double pipe heat exchanger cold
But water circulation path, cooling water circulation passageway include outdoor water chiller, and the output end of outdoor water chiller connects water filter,
The output end adapter sleeve pipe heat exchanger of water filter.
Preferably, it is connected with condensation pressure regulation valve between the water filter and double pipe heat exchanger.
Preferably, the two-stage compression system includes the split-compressor and oil eliminator of connection, the output of oil eliminator
End enters two level capillary and evaporator, the output end connection split-compressor of evaporator after Intermediate Heat Exchanger.
Preferably, it is connected with dew eliminating tube between the stage compressor and double pipe heat exchanger.
Preferably, described sleeve pipe formula heat exchanger is arranged at the side of box house.
The utility model has the advantages that：The one-level condenser system of the water cooling ultra-low temp uses water-cooled
Condenser system, the low-temperature cooling water in outdoor water chiller pass through water filter, under the control of condensation pressure regulation valve according to
Flow sleeve pipe formula heat exchanger is provided, in double pipe heat exchanger, low-temperature cooling water carries out refluent heat friendship with high temperature refrigerant
Change, the cooling water by heat exchange returns again to water chiller, and heat exchange efficiency is high, noise is small；Using Fin-tube Condenser as standby
With condenser system, when water chiller breaks down, air-cooled unit plays a role as back-up system, improves equipment operation
Brief description of the drawings
Fig. 1 is refrigerant system configurations schematic diagram.
Wherein, 1 is stage compressor, and 2 be dew eliminating tube, and 3 be double pipe heat exchanger, and 4 be Fin-tube Condenser, and 5 be one
Level device for drying and filtering, 6 be one-level capillary, and 7 be outdoor water chiller, and 8 be water filter, and 9 be condensation pressure regulation valve, and 10 are
Split-compressor, 11 be oil eliminator, and 12 be Intermediate Heat Exchanger, and 13 be two level capillary, and 14 be evaporator.
Specific embodiment of the present utility model is described further with specific embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of water cooling ultra-low temp, including casing and double-compressor cascade refrigeration system, double compressions
Machine cascade refrigeration system includes one stage of compression system and two-stage compression system, connects between one stage of compression system and two-stage compression system
There is the Intermediate Heat Exchanger 12 for carrying out heat exchange, one stage of compression system includes stage compressor 1, the casing type heat exchanging being sequentially communicated
Device 3, Fin-tube Condenser 4 and one-level capillary 6, are connected with dew eliminating tube 2 between stage compressor 1 and double pipe heat exchanger 3.One
The output end of level capillary 6 is connected with Intermediate Heat Exchanger 12, and cooling water circulation passageway is connected with double pipe heat exchanger 3, cools down
Water circulation path includes outdoor water chiller 7, the output end connection water filter 8 of outdoor water chiller 7, water filter 8 it is defeated
Go out to hold adapter sleeve pipe heat exchanger 3.Double pipe heat exchanger 3 uses countercurrent flow, the condensation heat release of path tube refrigerant, large-diameter pipe
Interior cooling water heat absorption, this double pipe heat exchanger are applied to the condensation side of HTHP.
Condensation pressure regulation valve 9 is connected between water filter 8 and double pipe heat exchanger 3.
Two-stage compression system include connection split-compressor 10 and oil eliminator 11, oil eliminator 11 output end warp in
Between enter two level capillary 13 and evaporator 14, the output end connection split-compressor 10 of evaporator 14 after heat exchanger 12.
Double pipe heat exchanger 3 is arranged at the side of box house.
The operation principle of the water cooling ultra-low temp is：The double pipe heat exchanger is carried out cold using outdoor water chiller
But, heat exchange, double pipe heat exchanger are carried out by the refrigerant in the cooling water and double pipe heat exchanger in outdoor water chiller
Inner refrigerant flow direction is opposite with the flow direction of cooling water.As shown by the arrows in Figure 1, arrow represents refrigerant flow direction, dotted arrow generation
Table cools down current direction, and along the flow direction of cooling water, outdoor water chiller connects water filter, and water filter connection condensing pressure is adjusted
Valve is saved, condensation pressure regulation valve connects double pipe heat exchanger again, the last double pipe heat exchanger outer water chiller of communication chamber again, so as to
Form the peripheral passage of cooling water.
Refrigerant is changed into high-temperature high-pressure state, the refrigerant sleeve pipe formula of HTHP by the compression of stage compressor
Heat exchanger, exchanged heat in double pipe heat exchanger with cooling water, the refrigerant that heat is pulled away is out cold by fin tube type successively
Returned to after condenser, one-level device for drying and filtering, one-level capillary and Intermediate Heat Exchanger in stage compressor.Wherein one stage of compression system
With split-compressor system heat exchange is carried out by Intermediate Heat Exchanger.
Wherein, the low-temperature cooling water in outdoor water chiller passes through water filter, under the control of condensation pressure regulation valve
According to regulation flow sleeve pipe formula heat exchanger, low-temperature cooling water carries out refluent heat with high temperature refrigerant in double pipe heat exchanger
Exchange, water chiller is returned again to by the cooling water of heat exchange.
Low-temperature cooling water is supplied to interior by outdoor water chiller, and low-temperature cooling water is got in by water filter, filtering
Fall its internal impurity, clear deimpurity low-temperature cooling water flows into set under the control of condensation pressure regulation valve according to regulation flow
Pipe heat exchanger.In double pipe heat exchanger, low-temperature cooling water and high temperature refrigerant are exchanged heat, and by exchanging heat, cooling water will be made
Heat caused by cooling system is brought to outdoor, is returned to outdoor water chiller and is completed cooling water circulation.
Certainly, it is to be also not limited to the example above to limitation of the present utility model, the utility model that described above, which is not,
The variations, modifications, additions or substitutions that those skilled in the art are made in essential scope of the present utility model, also should
Belong to the scope of protection of the utility model.