CN207299664U - A kind of deep-sea fishing liquid air instant-frozen system - Google Patents
A kind of deep-sea fishing liquid air instant-frozen system Download PDFInfo
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- CN207299664U CN207299664U CN201721049226.6U CN201721049226U CN207299664U CN 207299664 U CN207299664 U CN 207299664U CN 201721049226 U CN201721049226 U CN 201721049226U CN 207299664 U CN207299664 U CN 207299664U
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Abstract
The utility model provides a kind of deep-sea fishing liquid air instant-frozen system, the gas outlet of the air compressor is connected to the pressurized end through second pipe, in the air to be liquefied of the gas outlet discharge of pressurized end, enter second gas-liquid separator flash distillation after partially passing through the main heat exchanger, flash distillation obtains liquid air and residual gas and gained liquid air enters quick-frozen unit, another part obtains expanding gas by extraction expansion in the middle part of main heat exchanger, residual gas and expanding gas after flash distillation enter the 4th pipeline after pipeline passes through main heat exchanger respectively, and flash after residual gas and expanding gas exchange heat each other in main heat exchanger with air to be liquefied, 4th pipeline is connected to the air inlet of air compressor.The utility model storage cold is big, and more than 90% purification air after quick-frozen use, the air inlet of air compressor can be returned to by closed cycle, therefore small part raw air need to be only supplemented from air, sink temperature is integrally relatively low, and energy conservation and consumption reduction effects are obvious.
Description
Technical field
The invention belongs to fish technical field of preservation of fresh, and in particular to the fish in the mobile power tool in sea are fresh-keeping, specifically
It is related to a kind of deep-sea fishing liquid air instant-frozen system.
Background technology
With the continuous improvement of people's living standards, people more focus on rational diet structure to the important of health
Property.Rich and varied marine aquatic product delicious meat, unique flavor and has the characteristics that high protein, low fat, greatly enriches
Intake sources of the people to animal protein, are favored, China has developed into the first in the world marine product and disappears be subject to consumers in general
Fei Guo.However, due to reasons such as the pollution of marine environment, the overfishings of the mankind, coastal water fishery resource is destroyed seriously, seriously declined
Exhaust, the fast development for thus having expedited the emergence of China's deep-sea fishing is rapid.
The freshness of marine aquatic product not only directly decides the quality of its eating mouth feel, but also affects its nutritive value
Just.The fresh-keeping problem of marine aquatic product directly affects price, transport and the supply and marketing system of aquatic products, is to restrict sea fishery
The key link of sound development.Frozen fish " resurrection " technology particularly proposed in the recent period, it is desirable to -30 DEG C are realized in the short time and arrives -60
DEG C cryogenic refrigeration, fish body is kept fresh and alive, and wherein catch go on board after first time fast low temperature it is fresh-keeping be its crucial institute
.
Traditional cold storing and fresh-keeping is mostly fresh-keeping using trash ice, also has research now using absorption type engine exhaust-powered refrigerator, cold dry
The quick-frozen modes such as machine, fluidisation ice, all there are some indeterminable problems for these types of mode：First, the temperature of freezing is excessive；Two
It is that cold is not concentrated, it is impossible to meet that the short time after trawlnet is gone on board during fishing season prosperous hair is quick-frozen on a large scale.
The content of the invention
The present invention is directed to problems of the prior art, there is provided a kind of deep-sea fishing liquid air instant-frozen system, the system
The storage cold of system is big, and in whole system, more than 90% purification air can be returned to after quick-frozen use by closed cycle
The air inlet of air compressor, therefore small part raw air need to be only supplemented from air, sink temperature is integrally relatively low, energy saving drop
Consume positive effect.
The present invention adopts the following technical scheme that：
A kind of deep-sea fishing liquid air instant-frozen system（Liquid air refers to liquefied air）, including precooling clean unit, liquefaction unit
With quick-frozen unit, the precooling clean unit includes air compressor and booster expansion machine, and the booster expansion machine includes supercharging
End and expanding end, the gas outlet of the air compressor are connected to the pressurized end through second pipe, and the liquefaction unit includes
Main heat exchanger and the second gas-liquid separator, pressurized end gas outlet discharge air to be liquefied in, partially pass through the main heat exchange
Entering second gas-liquid separator after device to flash, flash distillation obtains liquid air and residual gas and gained liquid air enters quick-frozen unit,
Another part is expanded to obtain expanding gas by extraction in the middle part of main heat exchanger into the expanding end, residual gas after flash distillation and swollen
Flatulence body enters the 4th pipeline, and the residue gas after flash distillation after the 11st pipeline and the 12nd pipeline pass through main heat exchanger respectively
Body and expanding gas exchange heat each other with air to be liquefied in main heat exchanger, the 4th pipeline be connected to air compressor into
Gas port.
Preferably, the quick-frozen unit includes quick-frozen heat exchanger, and gained liquid air passes through the quick-frozen heat exchange through the 5th pipeline
Enter the 4th pipeline after device, fish products exchange heat to freeze fish products each other with liquid air in quick-frozen heat exchanger.
Preferably, the quick-frozen unit further includes liquid air reservoir, and gained liquid air is through the tenth pipeline to the liquid
Storage, liquid air reservoir are connected to the 5th pipeline through pipeline in empty reservoir.
Preferably, spray head is equipped with the quick-frozen heat exchanger, and the spray head is connected to the 5th pipeline.
Preferably, the precooling clean unit further includes cooler and absorber, the gas outlet the 3rd of the pressurized end
Pipeline is connected to main heat exchanger, and the cooler and absorber are sequentially connected in series and are arranged on from pressurized end between main heat exchanger
On 3rd pipeline.
Preferably, the precooling clean unit further includes the first gas-liquid separator, and first gas-liquid separator is arranged on
On the 3rd pipeline between the cooler and absorber.
Preferably, the 4th pipeline top set is equipped with regeneration gas pipeline, and the regeneration gas pipeline is connected to absorption
Device, and series connection is equipped with heater on regeneration gas pipeline.
Preferably, the absorber is additionally provided with exhaust gas discharge conduit, and the end of the exhaust gas discharge conduit is connected with and disappears
Sound device.
Preferably, the precooling clean unit further includes air filter, and the air filter connects via the first pipeline
Pass to the air inlet of air compressor；The preferred wire-mesh filter of air filter.
Preferably, the liquefaction unit and expanding end isolation are arranged in ice chest.
Beneficial effects of the present invention are as follows：
（1）Quick-frozen low-temperature receiver of the present invention using liquefied air as fish products, raw material is air, can use can use at any time, be
Uniting, adaptive faculty is strong, and this point is even more important for the ship of deep-sea fishing, the departure time length of deep-sea fishing, and midway is not any
Supply, if low-temperature receiver prepares deficiency or loses during sailing more, will be forced to make a return voyage in advance or fish products cannot be abundant
It is fresh-keeping, the low-temperature receiver that can convert at any time can be obtained at any time using the present invention is this, can be conducive to completely to avoid foregoing problems
Fish products it is timely it is fresh-keeping and fully it is fresh-keeping；
（2）Liquefied air is easily stored and the cold capacity of unit storage is big, and cold is concentrated and floor space is small, deep-sea fishing ship
Most of bearing space can all be used for the fish products that storage captures, if cold storage occupies big quantity space, it will cut down
The quantity of the catch of fish products, reduces the profit margin that single sails, for the present invention using liquid air as low-temperature receiver, floor space is small, goes out boat
Unit space utilization rate only is high, and can improve the profit margin that single sails indirectly；
（3）Air makees refrigerant safety and environmental protection, can directly be contacted with food；
（4）There is provided the burden that dedicated quick-frozen heat exchanger greatly reduces cleaning procedure.
Therefore the present invention can not only meet the ocean fishing vessel requirement fresh-keeping to fish products depth, but also easy to adjust,
Operation is flexible, scientific and reasonable.The present invention is of great significance to increasing economic efficiency, and promotes " Maritime Silk Road " to build in China
If implementing go-global strategy, exploitation " blueness is economic " plays a positive role.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of quick-frozen heat exchanger；
Fig. 3 is the structure diagram of quick-frozen heat exchanger inner fins；
It is labeled as in figure：
1st, air filter；2nd, air compressor；3rd, pressurized end；4th, cooler；5th, the first gas-liquid separator；6th, adsorb
Device；7th, muffler；8th, heater；9th, main heat exchanger；10th, throttle valve；11st, the second gas-liquid separator；12nd, expanding end；13rd, liquid air
Reservoir；14th, quick-frozen heat exchanger；15th, product conveyor；16th, ice chest；17th, spray head；18th, shut-off valve；19th, sleeve；20th, it is empty
Gas entrance；21st, air outlet slit；22nd, fin；
101st, the first pipeline；102nd, second pipe；103rd, the 3rd pipeline；104th, the 4th pipeline；105th, the 5th pipeline；106、
Exhaust gas discharge conduit；107th, regeneration gas pipeline；108th, the 8th pipeline；109th, the 9th pipeline；110th, the tenth pipeline；111st, the tenth
One pipeline；112nd, the 12nd pipeline.
Embodiment
In order to make the technical purpose of the present invention, technical solution and beneficial effect clearer, below in conjunction with the accompanying drawings and specifically
Embodiment is further illustrated technical scheme.
As shown in Figure 1, a kind of deep-sea fishing liquid air instant-frozen system, including precooling clean unit, liquefaction unit and quick-frozen
Unit, the liquefaction unit and the isolation of expanding end 12 are arranged in ice chest 16.The precooling clean unit includes air compressor 2
And booster expansion machine, the air compressor pressure at expulsion are 0.8 ~ 2.5MPa, the booster expansion machine includes pressurized end 3 and swollen
Swollen end 12, the gas outlet of the air compressor 2 are connected to the pressurized end 3 through second pipe 102；
The precooling clean unit further includes air filter 1, cooler 4, absorber 6, the first gas-liquid separator 5, institute
State the air inlet that air filter 1 is connected to air compressor 2 via the first pipeline 101；1 preferred woven wire of air filter
Filter.The 3rd pipeline 103 of gas outlet of the pressurized end 3 is connected to main heat exchanger 9, and the cooler 4 and absorber 6
It is sequentially connected in series and is arranged on from pressurized end 3 to the 3rd pipeline 103 between main heat exchanger 9, first gas-liquid separator 5 is arranged on
On the 3rd pipeline 103 between the cooler 4 and absorber 6.
The liquefaction unit includes 9 and second gas-liquid separator 11 of main heat exchanger, and liquid is treated in the gas outlet discharge of pressurized end 3
Change in air, partly sequentially pass through after cooler 4, the first gas-liquid separator 5, absorber 6 and main heat exchanger 9 through the 8th pipeline
108 flash into second gas-liquid separator 11, and the 8th pipeline 108 is equipped with throttle valve 10, to adjust flow, flashes
To liquid air and residual gas, and gained liquid air enters quick-frozen unit, and another part is discharged to be liquefied by the gas outlet of pressurized end 3
Air enters the expanding end 12 expansion through the 9th pipeline 109 by the extraction of the middle part of main heat exchanger 9 and obtains expanding gas；After flash distillation
Residual gas and expanding gas enter the 4th pipe after the 11st pipeline 111 and the 12nd pipeline 112 pass through main heat exchanger 9 respectively
Road 104, and flash after residual gas and expanding gas exchange heat each other in main heat exchanger 9 with air to be liquefied, the described 4th
Pipeline 104 is connected to the air inlet of air compressor 2, and the residual gas and expanding gas after thus flashing are again introduced into the present invention
Recycled in the system.
4th pipeline, 104 top set is equipped with regeneration gas pipeline 107, and the regeneration gas pipeline 107 is connected to suction
Adnexa 6, and series connection is equipped with heater 8 on regeneration gas pipeline 107；Absorber 6 is additionally provided with exhaust gas discharge conduit 106, and described
The end of exhaust gas discharge conduit 106 is connected with muffler 7.When needing regeneration, the gas in the 4th pipeline 104 of small part enters again
Raw gas pipeline 107, and after being heated by heater 8, into absorber 6 in is used as regeneration gas, through being let out by exhaust gas after use
Put pipeline 106 to discharge, regeneration gas pipeline 107 and exhaust gas discharge conduit 106 are equipped with shut-off valve 18, it is necessary to when regenerating again give
Open；
The quick-frozen unit includes quick-frozen heat exchanger 14 and liquid air reservoir 13, and gained liquid air can be through the tenth pipeline 110
Storage in the liquid air reservoir 13 is delivered to, while liquid air reservoir 13 is connected to the 5th pipeline 105, gained liquid air through pipeline
It can also be directly delivered to through the 5th pipeline 105 in the quick-frozen heat exchanger 14, the 4th pipeline 104, fish production are entered after heat exchange
Product exchange heat to freeze fish products each other with liquid air in quick-frozen heat exchanger 14, and quick-frozen 14 detailed construction of heat exchanger is shown in Fig. 2 and 3,
The main body of quick-frozen heat exchanger is sleeve 19, and one end of sleeve 19 is equipped with air intake 20, and the other end is equipped with air outlet slit 21, sleeve
Uniformly distributed some fins 22 in 19, liquefied air return again to the air pressure after heat exchange in quick-frozen heat exchanger 14 as purification air
The entrance of contracting machine 2, is recycled again, reduces the burden of cleaning procedure；The fish products that need to be freezed pass through the production
Product conveyer belt 15 is delivered in quick-frozen heat exchanger 14 and liquefied air countercurrent flow, and fin structure is provided with quick-frozen heat exchanger 14
To increase heat exchange area, freezing efficiency is improved.Spray head 17 can also be further provided with the quick-frozen heat exchanger 14, and it is described
Spray head 17 is connected to the 5th pipeline 105.When needing quick frozen product, liquid air is entered from the liquid air reservoir 13 by pipeline
The quick-frozen heat exchanger 14, or directly released from second gas-liquid separator 11 by the 5th pipeline 105 and enter the speed
Freeze heat exchanger 14, while extraction section liquid air also may be selected and pass through pipeline to the spray in the quick-frozen heat exchanger 14
First 17, to adjust cold.
In summary, in the present invention, only it is used for regeneration gas on a small quantity via precooling clean unit purified gas, makes
With outside rear discharge system, remaining is recycled in system, and air utilization ratio is high, and system loading is low.
It should be noted last that：Above-described embodiment is merely to illustrate the technical solution being not intended to limit the present invention, any right
The equivalent substitution and do not depart from the modification of spirit and scope of the invention or local replacement that the present invention carries out, it should all cover in this hair
Within bright protective scope of the claims.
Claims (10)
1. a kind of deep-sea fishing liquid air instant-frozen system, it is characterised in that including precooling clean unit, liquefaction unit and quick-frozen list
Member, the precooling clean unit include air compressor and booster expansion machine, and the booster expansion machine includes pressurized end and expansion
End, the gas outlet of the air compressor are connected to the pressurized end through second pipe, and the liquefaction unit includes main heat exchanger
With the second gas-liquid separator, pressurized end gas outlet discharge air to be liquefied in, enter after partially passing through the main heat exchanger
The second gas-liquid separator flash distillation, flash distillation obtains liquid air and residual gas and gained liquid air enters quick-frozen unit, another part
Expand to obtain expanding gas into the expanding end by extraction in the middle part of main heat exchanger, the residual gas and expanding gas after flash distillation point
The 4th pipeline, and the residual gas after flash distillation and expansion are not entered after the 11st pipeline and the 12nd pipeline pass through main heat exchanger
Gas exchanges heat each other with air to be liquefied in main heat exchanger, and the 4th pipeline is connected to the air inlet of air compressor.
2. deep-sea fishing according to claim 1 liquid air instant-frozen system, it is characterised in that the quick-frozen unit includes speed
Freeze heat exchanger, gained liquid air enters the 4th pipeline after the 5th pipeline passes through the quick-frozen heat exchanger, and fish products exist with liquid air
Exchanged heat each other in quick-frozen heat exchanger to freeze fish products.
3. deep-sea fishing according to claim 2 liquid air instant-frozen system, it is characterised in that the quick-frozen unit further includes
Liquid air reservoir, and gained liquid air, through being stored in the tenth pipeline to the liquid air reservoir, liquid air reservoir connects through pipeline
Pass to the 5th pipeline.
4. deep-sea fishing according to claim 3 liquid air instant-frozen system, it is characterised in that set in the quick-frozen heat exchanger
There is spray head, and the spray head is connected to the 5th pipeline.
5. deep-sea fishing according to claim 1 liquid air instant-frozen system, it is characterised in that the precooling clean unit is also
Including cooler and absorber, the 3rd pipeline of gas outlet of the pressurized end is connected to main heat exchanger, and the cooler and
Absorber, which is sequentially connected in series, to be arranged on from pressurized end to the 3rd pipeline between main heat exchanger.
6. deep-sea fishing according to claim 5 liquid air instant-frozen system, it is characterised in that the precooling clean unit is also
Including the first gas-liquid separator, and first gas-liquid separator is arranged on the 3rd pipeline between the cooler and absorber
On.
7. deep-sea fishing according to claim 5 liquid air instant-frozen system, it is characterised in that the 4th pipeline top set
Equipped with regeneration gas pipeline, the regeneration gas pipeline is connected to absorber, and series connection is equipped with heater on regeneration gas pipeline.
8. deep-sea fishing according to claim 5 liquid air instant-frozen system, it is characterised in that the absorber is additionally provided with useless
Gas discharge conduit, and the end of the exhaust gas discharge conduit is connected with muffler.
9. deep-sea fishing according to claim 1 liquid air instant-frozen system, it is characterised in that the precooling clean unit is also
Including air filter, the air filter is connected to the air inlet of air compressor via the first pipeline.
10. deep-sea fishing according to claim 1 liquid air instant-frozen system, it is characterised in that the liquefaction unit isolation
It is arranged in ice chest.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721049226.6U CN207299664U (en) | 2017-08-22 | 2017-08-22 | A kind of deep-sea fishing liquid air instant-frozen system |
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| CN201721049226.6U CN207299664U (en) | 2017-08-22 | 2017-08-22 | A kind of deep-sea fishing liquid air instant-frozen system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421187A (en) * | 2017-08-22 | 2017-12-01 | 河南大学 | A kind of deep-sea fishing liquid air instant-frozen system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421187A (en) * | 2017-08-22 | 2017-12-01 | 河南大学 | A kind of deep-sea fishing liquid air instant-frozen system |
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