CN208475781U - Cold storage refrigerating system - Google Patents
Cold storage refrigerating system Download PDFInfo
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- CN208475781U CN208475781U CN201820958373.3U CN201820958373U CN208475781U CN 208475781 U CN208475781 U CN 208475781U CN 201820958373 U CN201820958373 U CN 201820958373U CN 208475781 U CN208475781 U CN 208475781U
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Abstract
The utility model provides a kind of cold storage refrigerating system, including direct-cooled refrigeration system.The direct-cooled refrigeration system includes the first evaporator fin of multiple groups, and the first evaporator fin of multiple groups parallel interval is set in freezer and is connected in parallel with each other.The direct-cooled refrigeration system can guarantee that the temperature of any position in freezer is consistent.
Description
Technical field
The utility model relates to freezing and refrigeration technical field more particularly to a kind of cold storage refrigerating systems.
Background technique
The progress of the development of life science and clinical treatment field diseases analysis detection and treatment and health technology, promotees
Into the demand more and more extensive to biological sample, also to the memory technology of biological sample and equipment, more stringent requirements are proposed,
Including to storage sample safety, reliability and stability and sample access procedure and the accuracy of program, high efficiency and
Scientific requirement.The object of biological sample storage often covers large biological molecule, cell, tissue and organ equal samples, such as people
Body organ-tissue, whole blood, blood plasma, serum, biological fluid or through processed biological sample (including DNA, RNA, albumen etc.), etc.
Deng.Long term storage is carried out in general, biological sample is placed in freezer.The cooling capacity that the refrigeration system configured on freezer generates is with cold
Wind or directly cooling mode freeze to cool house internal.However, there is the phenomenon that being unevenly distributed in the temperature in existing freezer.
Utility model content
In view of the above situation, it is necessary to which the equally distributed cold storage refrigerating system of the temperature in freezer can be made by providing one kind.
The utility model provides a kind of cold storage refrigerating system, including direct-cooled refrigeration system.The direct-cooled refrigeration system includes
The first evaporator fin of multiple groups, the first evaporator fin of multiple groups parallel interval are set in freezer and are connected in parallel with each other.
As a preferred embodiment, the direct-cooled refrigeration system includes that high-temperature level refrigeration cycle and low-temperature level refrigeration are followed
Ring, the high-temperature level refrigeration cycle include by sequentially connected first compressor of pipeline, the first oil eliminator, condenser, the
One fluid reservoir, first filter, the first solenoid valve, the first expansion valve and condenser/evaporator, wherein the condenser/evaporator with
The suction end of first compressor is connected；The low-temperature level refrigeration cycle includes by sequentially connected second compression of pipeline
Machine, the second oil eliminator, condenser/evaporator, the second filter, second solenoid valve, the second expansion valve and direct-cooled evaporator,
Described in direct-cooled evaporator be connected with the suction end of second compressor；The direct-cooled evaporator includes the multiple groups first
Evaporator fin.
As a preferred embodiment, the high-temperature level refrigeration cycle further comprises being set to the first filter and institute
State the economizer between the first solenoid valve.
As a preferred embodiment, the cryogenic refrigeration circulation further comprises pressure sensor, the pressure sensor
It is connected with the discharge line of the direct-cooled evaporator, for detecting the pressure of the refrigerant by the direct-cooled evaporator discharge.
As a preferred embodiment, the cold storage refrigerating system further comprises spare air-cooled refrigeration system, spare liquid nitrogen
Refrigeration system and control system, the direct-cooled refrigeration system, spare air-cooled refrigeration system and spare liquid nitrogen refrigerating system point
Be not connected with the control system, the control system control the direct-cooled refrigeration system, spare air-cooled refrigeration system and
Switching between spare liquid nitrogen refrigerating system.
As a preferred embodiment, the spare liquid nitrogen refrigerating system includes passing through the sequentially connected liquid nitrogen container of pipeline, liquid
Nitrogen solenoid valve, liquid nitrogen evaporator and exhaust pipe, the exhaust pipe are used to for the nitrogen being discharged by the liquid nitrogen evaporator being discharged
Outside the freezer.
As a preferred embodiment, the liquid nitrogen evaporator includes the second evaporator fin of multiple groups, second wing of multiple groups
Piece evaporator is connected in parallel with each other and is set to the top of the library, and the second evaporator fin of a portion is around the library
The peripheral wall of body is arranged, and the second evaporator fin parallel interval of remainder is set to the centre of the library.
As a preferred embodiment, the spare air-cooled refrigeration system includes insulated room and is arranged in the insulated room
Blower and wind-cooled evaporator, the insulated room is arranged adjacent to the freezer and shares same side wall with the freezer, described
Air outlet is offered on side wall, a baffle is movably set on the side wall and covers the air outlet.
Cold storage refrigerating system provided by the utility model, by steaming the first fin of multiple groups in the direct-cooled refrigeration system
Hair device parallel interval is set in the freezer, so that the temperature of any position in the freezer is able to maintain unanimously.
Detailed description of the invention
Fig. 1 is the module map for the cold storage refrigerating system that bright one embodiment of hair provides.
Fig. 2 is the module map of direct-cooled refrigeration system shown in Fig. 1.
Fig. 3 is the partial perspective view of cold storage refrigerating system shown in Fig. 1.
Fig. 4 is the module map of spare liquid nitrogen refrigerating system shown in Fig. 1.
Main element symbol description
The following detailed description will be further explained with reference to the above drawings the utility model.
Specific embodiment
Many details are explained in the following description in order to fully understand the utility model, but this is practical new
Type can also be implemented using other than the one described here other way, and those skilled in the art can be without prejudice to this reality
With doing similar application in the case where novel intension, therefore the utility model is not limited by the specific embodiments disclosed below.
It should be noted that it can be directly to separately when a component is considered as " connection " another component
One component may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it can be with
It is to be set up directly on another component or may be simultaneously present component placed in the middle.
Also referring to the cold storage refrigerating system 100 that Fig. 1, an embodiment of the present invention are provided, for in freezer 500
Freeze in space in portion.The cold storage refrigerating system 100 includes direct-cooled refrigeration system 20, spare air-cooled refrigeration system 40, spare
Liquid nitrogen refrigerating system 60 and control system 80.The direct-cooled refrigeration system 20, spare air-cooled refrigeration system 40 and reserve liquid
Nitrogen refrigeration system 60 is connected with the control system 80 respectively, the control system 80 control the direct-cooled refrigeration system 20,
The spare air-cooled refrigeration system 40 and the respective running of the spare liquid nitrogen refrigerating system 60, and the control system 80 is controlled
Make the switching between the direct-cooled refrigeration system 20, spare air-cooled refrigeration system 40 and spare liquid nitrogen refrigerating system 60.Work as institute
It states direct-cooled refrigeration system 20 to go wrong when cannot freeze to the inner space of the freezer 500, the control system 80
Switching enables the spare air-cooled refrigeration system 40 or the spare liquid nitrogen refrigerating system 60.
Referring to Figure 2 together, the direct-cooled refrigeration system 20 is folding type cooling system.The direct-cooled refrigeration system 20 is wrapped
Include high-temperature level refrigeration cycle 21 and low-temperature level refrigeration cycle 23.The high-temperature level refrigeration cycle 21 includes successively being connected by pipeline
The first compressor 211, the first oil eliminator 212, condenser 213, the first fluid reservoir 214, first filter 215, first connect
Solenoid valve 216, the first expansion valve 217 and condenser/evaporator 218, the other end of the condenser/evaporator 218 and described first
The suction end of compressor 211 is connected.First compressor 211 is used to the first refrigerant compression be high steam discharge.
In the present embodiment, first compressor 211 is double-stage compressor.First oil eliminator 212 is used for first pressure
Lubricating oil in the first refrigerant of gaseous state of contracting machine discharge is separated, and isolated lubricating oil is back to institute by oil return pipe
It states in the first compressor 211.The condenser 213 is for cooling down first refrigerant of gaseous state, the first refrigerant liquefaction of gaseous state
For the first refrigerant of liquid.First fluid reservoir 214 is used for the first refrigerant of storing liquid.The first filter 215 is used
In filtering first refrigerant of liquid.First solenoid valve 216 is for switching on or off first fluid reservoir 214 and institute
State the connection between condenser/evaporator 218.When the high-temperature level refrigeration cycle 21 shutdown, first solenoid valve 216 is automatic
Cut off the pipeline between first fluid reservoir 214 and the condenser/evaporator 218；When the high-temperature level refrigeration cycle 21 is switched on
When, first solenoid valve 216 is liquid supply electromagnetic valve, for the first fluid reservoir 214 and the condensation evaporation described in turn on automatically
Pipeline between device 218.First expansion valve 217 is heating power expansion valve, for being discharged by first solenoid valve 216
The first refrigerant of liquid throttles, to adjust the liquid supply rate for the first refrigerant for being expelled to the condenser/evaporator 218.It is described
First refrigerant by liquid evaporation is gas for absorbing heat by condenser/evaporator 218.
21 course of work of high-temperature level refrigeration cycle is as follows:
First refrigerant enters first oil eliminator 212 after first compressor 211 compression and is separated,
It is cooled down, is stored subsequently into first fluid reservoir 214, subsequently into described subsequently into the condenser 213
First filter 215 is filtered, and is then entered the condenser/evaporator 218 after first expansion valve 217 throttling, is inhaled
Heat is received, is inhaled into first compressor 211 after being vaporized into superheated steam, circulation is completed.
Preferably, the high-temperature level refrigeration cycle 21 further comprises economizer 219.The economizer 219 is set to institute
State between first filter 215 and first solenoid valve 216, for the condensed fluid flowed out by the condenser 213 into
Row cooling, to improve refrigerating capacity and coefficient of refrigerating performance.
The low-temperature level refrigeration cycle 23 includes passing through sequentially connected second compressor 231 of pipeline, the second oil eliminator
232, condenser/evaporator 218, the second filter 233, second solenoid valve 234, the second expansion valve 235 and direct-cooled evaporator 236,
The other end of the direct-cooled evaporator 236 is connected with the suction end of second compressor 231.The low-temperature level refrigeration cycle
23 share same condenser/evaporator 218 with the high-temperature level refrigeration cycle 21.Second compressor 231 is single-stage compressor.
Second expansion valve 235 is electric expansion valve.The direct-cooled evaporator 236 is set in freezer 500 (ginseng Fig. 3).
The course of work of the low-temperature level refrigeration cycle 23 is as follows:
The high-temperature level refrigeration cycle 21 is that the condenser/evaporator 218 mentions by compression, condensation, throttling, evaporation process
Semen donors；Second refrigerant enters second oil eliminator 232 after second compressor 231 compression and is separated,
Then it is cooled down, is filtered using second filter 233, using described second by the condenser/evaporator 218
Expansion valve 235 enters the direct-cooled evaporator 236 after throttling, and the heat in the freezer 500 is absorbed, after being vaporized into superheated steam
It is inhaled into second compressor 231, completes circulation, realize the refrigeration to 500 inner space of freezer.
Preferably, the low-temperature level refrigeration cycle 23 further comprises the second fluid reservoir 238, for storing the second refrigeration
Agent.It is steamed by third solenoid valve 237 and second oil eliminator 232 and the condensation one end of second fluid reservoir 238
Pipeline between hair device 218 is connected, and the other end of second fluid reservoir 238 passes through the 4th solenoid valve 239 and described direct-cooled
Pipeline between evaporator 236 and second compressor 231 is connected.
Preferably, the low-temperature level refrigeration cycle 23 further comprises pressure sensor 24.The pressure sensor 24 with
The discharge line of the direct-cooled evaporator 236 is connected, and is made for detecting by the gaseous state second that the direct-cooled evaporator 236 is discharged
The pressure of cryogen, and will test data feedback to the control system 80, the control system 80 controls second expansion valve
235 aperture, to control the liquid inlet volume for entering the direct-cooled evaporator 236.
In the present embodiment, first refrigerant is medium temperature refrigerant, and the second refrigerant is low-temperature refrigerant.It can be with
Understand, in other embodiments, first refrigerant and the second refrigerant can be identical refrigerant.
Also referring to Fig. 3, the freezer 500 includes the library 510 and the lid 530 for covering the library 510.It is described straight
Cold evaporator 236 includes the first evaporator fin of multiple groups 50 of parallel interval setting, 50 phase of the first evaporator fin of multiple groups
Mutually it is connected in parallel.The frame 540 that freezes for being equipped with sample is installed between first evaporator fin of multiple groups 50, so that being located at institute
The temperature for stating the sample of any position in the library 510 is able to maintain unanimously.The first fin of multiple groups designed using parallel interval
Evaporator 50 can reduce occupied space of the direct-cooled evaporator 236 in the library 510, and enable in the library 510
Obtain equably temperature.
The spare air-cooled refrigeration system 40 realizes refrigeration using double-compressor overlapping mode.The spare air-cooled refrigeration system
System 40 includes insulated room 41 and the blower 43 and wind-cooled evaporator 45 that are arranged in the insulated room 41.The insulated room 41
The lateral wall of the neighbouring the library 510 is arranged, and shares the same side wall with the library 510.It opens 41 bottom of insulated room
Equipped with air inlet (not shown), the air inlet inside pipeline and the library 510 by being connected, for cold wind to be delivered to
In the library 510.The air outlet (not shown) being connected with the library 510 is offered on the side wall of the insulated room 41.
A baffle 46 is movably set on the side wall of the insulated room 41, the baffle 46 covers the air outlet.When the blower 43
When starting, negative pressure is generated inside the insulated room 41, the baffle 46 is beaten automatically under the pressure effect inside the library 510
It opens, is blown into the cold wind inside the library 510 and is flowed into the insulated room 41 via the air outlet, complete a wind path and follow
Ring.
Referring to Figure 4 together, the spare liquid nitrogen refrigerating system 60 includes passing through the sequentially connected liquid nitrogen container 62 of pipeline, liquid
Nitrogen solenoid valve 64, liquid nitrogen evaporator 66 and exhaust pipe 68.The liquid nitrogen solenoid valve 64 is connected with the control system 80, and
The order for receiving the control system 80 is opened or closed.The liquid nitrogen evaporator 66 includes the second evaporator fin of multiple groups
67.Second evaporator fin of multiple groups 67 is connected in parallel with each other, and is set to the top of the library 510, a portion
Second evaporator fin 67 is arranged around the peripheral wall of the library 510,67 parallel interval of the second evaporator fin of remainder
It is set to the centre of the library 510.Second evaporator fin 67 is including coil pipe 671 and is set to the coil pipe 671
On multiple fins 673.The coil pipe 671 is by tubing linearly reciprocally bending formation.In the present embodiment, the coil pipe
671 are formed three times by tubing is linearly reciprocally bending.One end of the exhaust pipe 68 is exposed to outside the library 510, is used
It is outer and drain into ambient atmosphere in the library 510 is discharged in nitrogen.When refrigeration, liquid nitrogen is from every group of second evaporator fin 67
One end flows into, and is discharged outside the library 510 after heat absorption vaporization of turning back three times by the exhaust pipe 68.
The cold storage refrigerating system 100 of the utility model, by by the first fin of multiple groups in the direct-cooled refrigeration system 20
50 parallel interval of evaporator is set in the freezer 500, and the temperature of any position in the freezer 500 is protected
It holds consistent.And by the way that spare air-cooled refrigeration system 40 and spare liquid nitrogen refrigerating system 60 is arranged, in the direct-cooled refrigeration system
20 can continue to freeze to 500 inner space of freezer when breaking down.In addition, the spare air-cooled refrigeration system 40
Insulated room 41 and the freezer 500 share same side wall, cover the baffle 46 of the air outlet when the blower 43 starts
It automatically opens, simplifies structure and operation.In addition, liquid nitrogen passes through second wing in the spare liquid nitrogen refrigerating system 60
Refrigeration is realized in the heat absorption vaporization of piece evaporator 67, compares existing liquid nitrogen spray solutions for refrigeration, smaller to the consumption of liquid nitrogen, and is more pacified
Entirely.
Embodiment of above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to a variety of of these embodiments
Modification will be readily apparent to those skilled in the art, and the general principles defined herein can not take off
In the case where spirit or scope from the utility model, realize in other embodiments.Therefore, the utility model will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article widest
Range.
Claims (8)
1. a kind of cold storage refrigerating system, including direct-cooled refrigeration system, it is characterised in that: the direct-cooled refrigeration system includes multiple groups
One evaporator fin, the first evaporator fin of multiple groups parallel interval are set in freezer and are connected in parallel with each other.
2. cold storage refrigerating system as described in claim 1, which is characterized in that the direct-cooled refrigeration system includes high-temperature level refrigeration
Circulation and low-temperature level refrigeration cycle, the high-temperature level refrigeration cycle include by sequentially connected first compressor of pipeline, the
One oil eliminator, condenser, the first fluid reservoir, first filter, the first solenoid valve, the first expansion valve and condenser/evaporator,
Wherein the condenser/evaporator is connected with the suction end of first compressor；The low-temperature level refrigeration cycle includes passing through pipe
Sequentially connected second compressor in road, the second oil eliminator, condenser/evaporator, the second filter, second solenoid valve, the second expansion
Valve and direct-cooled evaporator, wherein the direct-cooled evaporator is connected with the suction end of second compressor；The direct-cooled steaming
Sending out device includes first evaporator fin of multiple groups.
3. cold storage refrigerating system as claimed in claim 2, which is characterized in that the high-temperature level refrigeration cycle further comprises setting
The economizer being placed between the first filter and first solenoid valve.
4. cold storage refrigerating system as claimed in claim 2, which is characterized in that the low-temperature level refrigeration cycle further comprises pressure
Force snesor, the pressure sensor are connected with the discharge line of the direct-cooled evaporator, for detecting by the direct-cooled steaming
Send out the pressure of the refrigerant of device discharge.
5. cold storage refrigerating system as described in claim 1, which is characterized in that the cold storage refrigerating system further comprises spare
Air-cooled refrigeration system, spare liquid nitrogen refrigerating system and control system, the direct-cooled refrigeration system, spare air-cooled refrigeration system with
And spare liquid nitrogen refrigerating system is connected with the control system respectively, the control system control the direct-cooled refrigeration system,
Switching between spare air-cooled refrigeration system and spare liquid nitrogen refrigerating system.
6. cold storage refrigerating system as claimed in claim 5, which is characterized in that the spare liquid nitrogen refrigerating system includes passing through pipe
The sequentially connected liquid nitrogen container in road, liquid nitrogen solenoid valve, liquid nitrogen evaporator and exhaust pipe, the exhaust pipe is used for will be by the liquid nitrogen
The nitrogen of evaporator discharge is discharged outside the freezer.
7. cold storage refrigerating system as claimed in claim 6, which is characterized in that the liquid nitrogen evaporator includes the second fin of multiple groups
Evaporator, second evaporator fin of multiple groups are connected in parallel with each other and are set to the top of the freezer, a portion
Two evaporator fins are arranged around the peripheral wall of the freezer, and the second evaporator fin parallel interval of remainder is set to described
The centre of freezer.
8. cold storage refrigerating system as claimed in claim 5, which is characterized in that the spare air-cooled refrigeration system includes insulated room
And blower and wind-cooled evaporator in the insulated room are set, the insulated room be arranged adjacent to the freezer and with it is described
Freezer shares same side wall, offers air outlet on the side wall, and a baffle is movably set on the side wall and described in covering
Air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958373.3U CN208475781U (en) | 2018-06-20 | 2018-06-20 | Cold storage refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958373.3U CN208475781U (en) | 2018-06-20 | 2018-06-20 | Cold storage refrigerating system |
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| Publication Number | Publication Date |
|---|---|
| CN208475781U true CN208475781U (en) | 2019-02-05 |
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ID=65214377
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820958373.3U Active CN208475781U (en) | 2018-06-20 | 2018-06-20 | Cold storage refrigerating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726281A (en) * | 2019-11-15 | 2020-01-24 | 昆明凯诺思制冷技术有限公司 | Low-temperature refrigeration house cooling system |
-
2018
- 2018-06-20 CN CN201820958373.3U patent/CN208475781U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726281A (en) * | 2019-11-15 | 2020-01-24 | 昆明凯诺思制冷技术有限公司 | Low-temperature refrigeration house cooling system |
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