CN207674799U - A kind of air refrigerant low-temperature quick-freezing refrigeration system - Google Patents
A kind of air refrigerant low-temperature quick-freezing refrigeration system Download PDFInfo
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- CN207674799U CN207674799U CN201721872429.5U CN201721872429U CN207674799U CN 207674799 U CN207674799 U CN 207674799U CN 201721872429 U CN201721872429 U CN 201721872429U CN 207674799 U CN207674799 U CN 207674799U
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Abstract
The utility model discloses a kind of air refrigerant low-temperature quick-freezing refrigeration systems, air filter is connected by pipeline with the import of air compressor, the outlet of air compressor is connected with the first import of air cleaning system, the first outlet of air cleaning system is connected across air precooler with turbo-expander by pipeline, turbo-expander is connected by positive stream pipeline with the air inlet of low-temperature quick-freezing machine, the gas outlet of low-temperature quick-freezing machine passes through air precooler to be connected with exhaust gas granting air-introduced machine by reflux line, exhaust gas provides air-introduced machine and is connected with the pipeline of air compressor with air filter is connect by a pipeline, exhaust gas provides air-introduced machine and is connected with the second import of air cleaning system by another pipeline, the second outlet of air cleaning system is connected by introduction pipe with regeneration gas air-introduced machine.Compared with prior art, the utility model has the advantages that quality, the environment friendly and pollution-free and refrigeration of not damaging frozen food are at low cost.
Description
Technical field
The utility model is related to refrigeration machines, and in particular to a kind of air refrigerant low-temperature quick-freezing refrigeration system.
Background technology
Conventional food product refrigeration technology, including freon refrigeration technology and liquefied ammonia Refrigeration Technique etc., because of cryogenic temperature
Height, cooling time is long, and slow Food Freezing Process will lead to the generation of large ice crystals grain in food, when waiting food defrostings, food
Middle cell tissue can occur rupture causes food juices to be lost in, and the loss of food juices influence whether defrosting food color and luster,
Mouthfeel and nutrition feature.Nutrient and natural pigment can be also lost in the food juices of loss.Especially fruits and vegetables class
Food, the damage of structure can cause the degradation of texture of food mouthfeel, structure to become loose.Using freon or liquefied ammonia as cold
Matchmaker is the industrial chemicals prohibited or limited by country.Have significantly to the living environment of environment and the mankind
It destroys.In addition, also there is buying liquid nitrogen currently on the market, directly making low-temperature receiver using a large amount of liquid nitrogen carries out the quick-frozen example of food low-temperature
Son, effect are also ideal.But it is gradually high due to the liquid nitrogen market price, many suppliers have been difficult to hold
By.It adds, is entirely a kind of waste with -196 DEG C of low temperature liquid nitrogen come quick-frozen for general fast food freezing.Therefore, have
Necessity proposes a kind of new technical solution.
Utility model content
The utility model proposes a kind of air refrigerant low-temperature quick-freezing refrigeration systems, solve damage freezing of the existing technology
The quality of food, not environmentally and refrigeration problem of high cost.
To achieve the goals above, the technical solution of the utility model is：A kind of air refrigerant low-temperature quick-freezing refrigeration system,
Including air filter, air compressor, regeneration gas air-introduced machine, air cleaning system, air precooler, turbo-expander, low
Warm instant freezer, exhaust gas provide air-introduced machine and PLC control modules, the air filter pass through pipeline and the air compressor
Import be connected, the outlet of the air compressor is connected with the first import of the air cleaning system, the air purification
The first outlet of system is connected across the air precooler with the turbo-expander by pipeline, and the turbo-expander is logical
It crosses positive stream pipeline with the air inlet of the low-temperature quick-freezing machine to be connected, the gas outlet of the low-temperature quick-freezing machine is passed through by reflux line
Air precooler and exhaust gas provide air-introduced machine and are connected, the exhaust gas provide air-introduced machine by a pipeline with connect air filter and
The pipeline of air compressor is connected, and the exhaust gas provides second of air-introduced machine by another pipeline with the air cleaning system
Import is connected, and the second outlet of the air cleaning system is connected by introduction pipe with the regeneration gas air-introduced machine, the PLC
Control module is separately connected air compressor, regeneration gas air-introduced machine, air cleaning system and exhaust gas and provides air-introduced machine.
Preferably, further include the Cryogenic air temp probe being respectively connected with the PLC control modules and air themperature tune
Save valve, the Cryogenic air temp probe be set to positive stream pipeline on, the air temperature modification valve be set to the positive stream pipeline and
On reflux line, the Cryogenic air temp probe is connected with air temperature modification valve.
Preferably, the low-temperature quick-freezing machine is tunnel type, is internally provided with conveyer belt.
Preferably, further include low-temperature cold box, the air precooler and turbo-expander are respectively arranged on the low-temperature cold box
It is interior.
Compared with prior art, the utility model tool has the advantage that：The utility model proposes air refrigerant low temperature speed
Freeze in refrigeration system, air filter is connected by pipeline with the import of air compressor, and air is filtered by air filter
Fall granule foreign and dust, after by air compressor be compressed to predetermined pressure；The outlet of air compressor and air purification system
First import of system is connected, and purified treatment is dried in the air after air cleaning system pressurizes to compression；Air cleaning system
First outlet be connected with turbo-expander across air precooler by pipeline, the air after dry decontamination is processed first passes through
The heat exchange cooling processing of air precooler imports in turbo-expander again, and compressed air carries out adiabatic expansion in turbo-expander
Acting consumes the interior energy of itself outward, is in this way greatly lowered the pressure and temperature of compressed air to reach refrigeration and cooling
Purpose, turbo-expander are connected by positive stream pipeline with the air inlet of low-temperature quick-freezing machine, are expanded at cooling by turbo-expander
Cryogenic air after reason by exchanging heat with direct food contact in positive stream pipeline to low-temperature quick-freezing machine, just realize by such food
It is quickly cooled down.Cooling time is short, does not have the generation of large ice crystals grain in food, ensure that the quality of frozen food, and using empty
Gas is environment friendly and pollution-free as refrigerant；And the utility model not only uses air as cooling medium, also by the low temperature waste gas of return
In cold be recycled, reduce energy loss so that the refrigeration of the utility model is at low cost.Therefore, existing skill is compared
Art, the utility model have the advantages that quality, the environment friendly and pollution-free and refrigeration of not damaging frozen food are at low cost.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the connection diagram of the utility model.
In figure：1-air filter, 2-air compressors, 3-regeneration gas air-introduced machines, 4-air cleaning systems, 5-
Low-temperature cold box, 6-air precoolers, 7-turbo-expanders, 8-low-temperature quick-freezing machines, 9-Cryogenic air temp probes, 10-is empty
Gas temperature control valve (TCV), 11-exhaust gas provide air-introduced machine, 12-PLC control modules.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not under the premise of making the creative labor
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, the utility model proposes a kind of air refrigerant low-temperature quick-freezing refrigeration system, including air filter
1, air compressor 2, regeneration gas air-introduced machine 3, air cleaning system 4, air precooler 6, turbo-expander 7, low-temperature quick-freezing machine
8, exhaust gas provides air-introduced machine 11 and PLC control modules 12, the import phase that air filter 1 passes through pipeline and air compressor 2
Even, the outlet of air compressor 2 is connected with the first import of air cleaning system 4, and the first outlet of air cleaning system 4 passes through
Pipeline is connected across air precooler 6 with turbo-expander 7, turbo-expander 7 by positive stream pipeline and low-temperature quick-freezing machine 8 into
Gas port is connected,
In the present embodiment, air filters out granule foreign and dust by air filter 1, after by air compressor 2
It is compressed to predetermined pressure, purified treatment is dried in the air after air cleaning system 4 pressurizes to compression, and dry decontamination is processed
The heat exchange cooling processing that air afterwards first passes through air precooler 6 is imported again in turbo-expander 7, and compressed air is in turbine expansion
Progress adiabatic expansion is done work outward in machine 7 consumes the interior energy of itself, is in this way greatly lowered the pressure and temperature of compressed air
To achieve the purpose that refrigeration and cooling.
As shown in Figure 1, in the present embodiment, the gas outlet of low-temperature quick-freezing machine 8 by reflux line pass through air precooler 6 with
Exhaust gas provide air-introduced machine 11 be connected, exhaust gas provide air-introduced machine 11 by a pipeline with connect air filter 1 and air compressor 2
Pipeline be connected, exhaust gas provide air-introduced machine 11 be connected with the second import of air cleaning system 4 by another pipeline, air is net
The second outlet of change system 4 is connected by introduction pipe with regeneration gas air-introduced machine 3.
In the present embodiment, when the Cryogenic air of reflux is across air precooler 6 and after the dry decontamination of positive stream is processed
After air heat-exchange re-heat, provides air-introduced machine 11 by exhaust gas and draw, part is sent into air cleaning system 4 and is done after purified treatment
Regeneration gas uses, and then passes through regeneration gas air-introduced machine 3 and draws emptying；Remaining exhaust gas is passed through connection air filter 1 and air pressure
It in the pipeline of contracting machine 2, is mixed with the air handled by air filter 1, participates in circularly cooling again, realize that cycle is sharp again
With, the refrigeration cost of the present embodiment is not only reduced, it is also more environmentally friendly.
In the present embodiment, PLC control modules 12 are separately connected air compressor 2, regeneration gas air-introduced machine 3, air purification system
System 4 and exhaust gas provide air-introduced machine 11.Can by PLC control modules 12 come control air compressor 2, regeneration gas air-introduced machine 3,
Air cleaning system 4 and exhaust gas provide the open and close of air-introduced machine 11, more intelligent.
Further include the Cryogenic air temp probe 9 being respectively connected with PLC control modules 12 and air themperature in the present embodiment
Regulating valve 10, Cryogenic air temp probe 9 are set on positive stream pipeline, and air temperature modification valve 10 is set to positive stream pipeline and return duct
On road.Cryogenic air temp probe 9 is connected with air temperature modification valve 10.Cryogenic air can be acquired by PLC control modules 12
The temperature signal that temp probe 9 is fed back, is adjusted air temperature modification valve 10, and Cryogenic air temperature is adjusted to reach
Purpose.
As shown in Figure 1, in the present embodiment, low-temperature quick-freezing machine 8 is tunnel type, is internally provided with conveyer belt.Food to be frozen
Product are placed on a moving belt, and such food is cooled down while conveying, is further speeded up the rate of freezing, is avoided large ice crystals
The generation of grain, ensures the quality of food, and foods to be processed can be carried out 24 hours it is uninterrupted continuous quick-frozen.
As shown in Figure 1, further including low-temperature cold box 5, air precooler 6 and turbo-expander 7 are respectively arranged on low-temperature cold box 5
It is interior.Low-temperature cold box 5 can guarantee when compressed air exchanges heat cooling in air precooler 6 and in expansion cooling processing, locate
Under low temperature environment, reduce thermal loss in this way.
The utility model utilizes turbine expansion refrigeration technology, purified air themperature is directly dropped to -120 DEG C, then
Refrigerant is done using ultra-low temperature air, with direct food contact, quickly takes away heat, achievees the purpose that be rapidly frozen food, freezing
Time can shorten to 2 minutes.Such be rapidly frozen keeps the ice crystal of generation minimum, and assists in keeping the quality of food.This
The loss for preventing moisture maintains the primary colors of food, original flavor and protoplasm, has nearly reached the original fresh state of food.
It is said from environmental angle, the refrigerant that the utility model utilizes is pure air, to food and atmospheric environment etc. without appointing
What is polluted.But in -50 DEG C to -196 DEG C temperature ranges, also it can replace liquid nitrogen without suitable refrigerant.And this practicality is new
The low-temperature refrigeration technology of type just compensates for the defect of this temperature range, the temperature of product Cryogenic air can -50 DEG C to -
160 DEG C of sections arbitrarily adjust, and purchase cost of the cost well below liquid nitrogen of freezing.
It is worth noting that, the utility model can also replace air with pure nitrogen gas, as refrigerant gas, while nitrogen is also
It can play the role of long-period freshness preserving.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (4)
1. a kind of air refrigerant low-temperature quick-freezing refrigeration system, it is characterised in that：Including air filter (1), air compressor
(2), regeneration gas air-introduced machine (3), air cleaning system (4), air precooler (6), turbo-expander (7), low-temperature quick-freezing machine
(8), exhaust gas provides air-introduced machine (11) and PLC control modules (12), the air filter (1) pass through pipeline and the air
The import of compressor (2) is connected, the outlet of the air compressor (2) and the first import phase of the air cleaning system (4)
Even, the first outlet of the air cleaning system (4) passes through the air precooler (6) and the turbo-expander by pipeline
(7) it is connected, the turbo-expander (7) is connected by positive stream pipeline with the air inlet of the low-temperature quick-freezing machine (8), the low temperature
The gas outlet of instant freezer (8) passes through air precooler (6) to be connected with exhaust gas granting air-introduced machine (11) by reflux line, described useless
Gas provides air-introduced machine (11) and is connected with the pipeline of air compressor (2) with air filter (1) is connect by a pipeline, described
Exhaust gas provides air-introduced machine (11) and is connected with the second import of the air cleaning system (4) by another pipeline, and the air is net
The second outlet of change system (4) is connected by introduction pipe with the regeneration gas air-introduced machine (3), the PLC control modules (12)
It is separately connected air compressor (2), regeneration gas air-introduced machine (3), air cleaning system (4) and exhaust gas and provides air-introduced machine (11).
2. air refrigerant low-temperature quick-freezing refrigeration system according to claim 1, it is characterised in that：Further include and the PLC
The Cryogenic air temp probe (9) and air temperature modification valve (10) that control module (12) is respectively connected with, the Cryogenic air temperature
Degree probe (9) is set on positive stream pipeline, and the air temperature modification valve (10) is set on the positive stream pipeline and reflux line, institute
Cryogenic air temp probe (9) is stated with air temperature modification valve (10) to be connected.
3. air refrigerant low-temperature quick-freezing refrigeration system according to claim 1, it is characterised in that：The low-temperature quick-freezing machine
(8) it is tunnel type, is internally provided with conveyer belt.
4. the air refrigerant low-temperature quick-freezing refrigeration system according to claim 1-3 any one, it is characterised in that：Also wrap
Low-temperature cold box (5) is included, the air precooler (6) and turbo-expander (7) are respectively arranged in the low-temperature cold box (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721872429.5U CN207674799U (en) | 2017-12-27 | 2017-12-27 | A kind of air refrigerant low-temperature quick-freezing refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721872429.5U CN207674799U (en) | 2017-12-27 | 2017-12-27 | A kind of air refrigerant low-temperature quick-freezing refrigeration system |
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| CN207674799U true CN207674799U (en) | 2018-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721872429.5U Active CN207674799U (en) | 2017-12-27 | 2017-12-27 | A kind of air refrigerant low-temperature quick-freezing refrigeration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965962A (en) * | 2017-12-27 | 2018-04-27 | 杭州锦华气体设备有限公司 | A kind of air refrigerant low-temperature quick-freezing refrigeration system |
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2017
- 2017-12-27 CN CN201721872429.5U patent/CN207674799U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965962A (en) * | 2017-12-27 | 2018-04-27 | 杭州锦华气体设备有限公司 | A kind of air refrigerant low-temperature quick-freezing refrigeration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230418 Address after: No. 73 Beidou Avenue, Zhejiang Longyou Economic Development Zone, Longyou County, Quzhou City, Zhejiang Province, 324499 Patentee after: Zhejiang Jinhua Air Separation Equipment Co.,Ltd. Address before: Room 606, Building 1, Fangyuanjin Street Commercial Center, Xiacheng District, Hangzhou City, Zhejiang Province, 310000 Patentee before: HANGZHOU JINHUA GAS EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right |