CN110530092A - Recycle the low-temperature cold store of the free-air refrigeration of cold energy of liquefied natural gas - Google Patents
Recycle the low-temperature cold store of the free-air refrigeration of cold energy of liquefied natural gas Download PDFInfo
- Publication number
- CN110530092A CN110530092A CN201910862448.7A CN201910862448A CN110530092A CN 110530092 A CN110530092 A CN 110530092A CN 201910862448 A CN201910862448 A CN 201910862448A CN 110530092 A CN110530092 A CN 110530092A
- Authority
- CN
- China
- Prior art keywords
- cold
- air
- natural gas
- liquefied natural
- free
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 35
- 238000005057 refrigeration Methods 0.000 title claims abstract description 21
- 238000004064 recycling Methods 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims description 2
- 238000001727 in vivo Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D13/00—Stationary devices, e.g. cold-rooms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention discloses a kind of low-temperature cold store of free-air refrigeration for recycling cold energy of liquefied natural gas, cold air treatment box including being located at the side of freezer, the top of the cold air treatment box and freezer is connected by air supply tube, is connect with the lower part of freezer by backwind tube；Heat exchanger is arranged at the bottom of the cold air treatment box, and the heat exchanger is connect through liquefied natural gas pump with the outlet that liquefied natural gas recycles, and is equipped with fan above the heat exchanger, below the air inlet of the air supply tube.The present invention sufficiently recycles cold energy of liquefied natural gas, and free-air is cold cooling supply, it is cold in be not necessarily to heat exchanger, will not frosting, system equipment is simple, and initial cost and energy consumption are few, improves the utilization rate of cold energy of liquefied natural gas, energy conservation and environmental protection.
Description
Technical field
The present invention relates to Food Freezing and Cold Storage technical fields, and in particular to a kind of to recycle the open of cold energy of liquefied natural gas
The low-temperature cold store of air cooling.
Background technique
Common Food Freezing and Cold Storage low-temperature cold store, is freon or ammonia double-stage compressive refrigerating system, also useful overlapping
Formula refrigeration system, refrigeration compressor need to consume a large amount of electric energy, cold inner coil pipe of freezer or the frosting of air-cooler surface, lead
Heat transfer resistance is caused to increase, heat transfer property decline, evaporating temperature reduces, and the power consumption of refrigeration compressor further increases, meanwhile, refrigeration
System complex, initial cost are higher.If using refrigerating medium recycle cold energy of liquefied natural gas, equally, cold inner coil pipe of freezer or
It is the frosting of air-cooler surface, influences heat-transfer effect, moreover, defrosting influences the temperature field in cold, influences the fresh-keeping quality of food,
The cleaning of defrosting water is also more troublesome.
Summary of the invention
The purpose of the present invention is being directed to technological deficiency existing in the prior art, a kind of recycling cold energy of liquefied natural gas is provided
Free-air refrigeration low-temperature cold store realize the opening of low-temperature cold store to solve the effective use of cold energy of liquefied natural gas
Formula air cooling, it is energy saving.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of low-temperature cold store for the free-air refrigeration recycling cold energy of liquefied natural gas, including positioned at the side of freezer
The top of cold air treatment box, the cold air treatment box and freezer is connected by air supply tube, is passed through back with the lower part of freezer
Air hose connection；Heat exchanger is arranged at the bottom of the cold air treatment box, and the heat exchanger is through liquefied natural gas pump and liquefied natural gas
The outlet of circulation connects, and is equipped with fan above the heat exchanger, below the air inlet of the air supply tube.
Wherein, the air supply tube includes vertical air supply tube and horizontal blast pipe, and one end of the vertical air supply tube is goed deep into
In the top of cold air treatment box, the other end is connect with horizontal blast pipe, wall of the horizontal blast pipe horizontal through the library
Body orifice protrudes into the library and is located at the top of the library of freezer.
Wherein, the horizontal blast Guan Shui at the top of Air duct hanging bracket and the library by being fixedly connected.
Wherein, the both ends open of the backwind tube, one end are positioned horizontally in the bottom of the library of freezer, across the wall of the library
Aperture is simultaneously fixed on wall, and other end side is goed deep into the bottom of cold air treatment box.
Wherein, the discharge connection of the heat exchanger passes through cold air treatment box side wall and stretches out in cold air treatment box, with liquid
Change the entrance connection of natural gas circulation.
Wherein, the air supply tube and backwind tube are respectively multiple, and be respectively spaced from each other setting.
Wherein, multiple spaced apart air outlets are formed on the tube wall of the horizontal blast pipe.
The low-temperature cold store of the free-air refrigeration of recycling cold energy of liquefied natural gas of the invention, sufficiently recycles liquefaction
Natural gas cold energy, free-air be cold cooling supply, it is cold in be not necessarily to heat exchanger, will not frosting, system equipment is simple, initial cost
It is few with energy consumption, improve the utilization rate of cold energy of liquefied natural gas, energy conservation and environmental protection.
Detailed description of the invention
Fig. 1 show the signal of the low-temperature cold store of the free-air refrigeration of recycling cold energy of liquefied natural gas of the invention
Figure；
Fig. 2 show the schematic diagram in A-A direction of Fig. 1.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Shown in Fig. 1 and Fig. 2, the present invention recycles the low-temperature cold store of the free-air refrigeration of cold energy of liquefied natural gas, including
Vertical air supply tube 1, horizontal blast pipe 2, Air duct hanging bracket 3, air outlet 4, library door 5, the library 6, backwind tube 7, liquefied natural gas pump 8,
Heat exchanger 9, fan 10, bracket 11, cold air treatment box 12.
One end of the vertical air supply tube 1 is goed deep into the top of cold air treatment box 12, and the other end and horizontal blast pipe 2 connect
It connects, horizontal blast pipe 2 is positioned horizontally in the top of the library, across the wall aperture of the library, by solid at the top of Air duct hanging bracket 3 and the library
Fixed connection.
In the present invention, the both ends open of the backwind tube 7, one end is positioned horizontally in the bottom of the library, across the wall of the library
Aperture is simultaneously fixed on wall, and other end side is goed deep into the bottom of cold air treatment box 12.
In the present invention, the heat exchanger 9 is located at the top of the bottom of cold air treatment box 12, backwind tube 7, and inlet connection is worn
12 side wall of supercooled air treatment box is connect through liquefied natural gas pump 8 with the outlet that liquefied natural gas recycles, and discharge connection passes through
12 side wall of cold air treatment box is connect with the entrance of liquefied natural gas circulation.
In the present invention, the fan 10 is located at the top of the heat exchanger 9 in cold air treatment box 12, particularly passes through wind
The bracket 11 of fan is fixed on 12 inner wall of cold air treatment box.
In the present invention, the library 6, which can be, forms heat preservation hexahedron structure by top plate, wallboard, top plate and bottom plate, close
Library door 5 offers doorframe and door 5 sealing in library cooperates, and the vertical side vertical edge corresponding to doorframe of library door 5 is fixed and can be opposite
Rotation.
In the present invention, the cold air treatment box 12 can be the hexahedral structure of sealing of insulation board composition.
When refrigeration system operation, start liquefied natural gas pump 8, fan 10, air is in 12 bottom of cold air treatment box, In
Under the swabbing action of fan 10, heat exchanger 9 and the heat exchange of low-temperature liquefaction natural gas are blown over, temperature enters vertical air supply tube after reducing
1, horizontal blast pipe 2, the air outlet 4 formed on the tube wall through horizontal blast pipe 2 are blown into cold, are passed through back by the return air inlet of bottom
Air hose 7 returns to cold air treatment box 12, moves in circles.
The low-temperature cold store of the free-air refrigeration of exploitation recycling cold energy of liquefied natural gas of the invention, it is cold in without changing
Hot device, will not frosting, system equipment is simple, and initial cost and energy consumption are few, improves the utilization rate of cold energy of liquefied natural gas, energy-saving ring
It protects.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of low-temperature cold store for the free-air refrigeration for recycling cold energy of liquefied natural gas, which is characterized in that cold including being located at
The top of the cold air treatment box of the side in library, the cold air treatment box and freezer is connected by air supply tube, with freezer
Lower part is connected by backwind tube；Heat exchanger arranged at the bottom of the cold air treatment box, the heat exchanger through liquefied natural gas pump with
The outlet of liquefied natural gas circulation connects, and fan is equipped with above the heat exchanger, under the air inlet of the air supply tube
Side.
2. the low-temperature cold store of the free-air refrigeration of recycling cold energy of liquefied natural gas according to claim 1, feature
It is, the air supply tube includes vertical air supply tube and horizontal blast pipe, and one end of the vertical air supply tube is goed deep at cold air
In the top for managing case, the other end is connect with horizontal blast pipe, and the horizontal blast pipe is stretched horizontal through the wall aperture of the library
The top of the library of the storage in vivo and positioned at freezer.
3. the low-temperature cold store of the free-air refrigeration of recycling cold energy of liquefied natural gas according to claim 2, feature
It is, the horizontal blast Guan Shui at the top of Air duct hanging bracket and the library by being fixedly connected.
4. the low-temperature cold store of the free-air refrigeration of recycling cold energy of liquefied natural gas according to claim 1, feature
It is, the both ends open of the backwind tube, one end is positioned horizontally in the bottom of the library of freezer, across the wall aperture of the library and solid
Due on wall, other end side is goed deep into the bottom of cold air treatment box.
5. the low-temperature cold store of the free-air refrigeration of recycling cold energy of liquefied natural gas according to claim 1, feature
It is, the discharge connection of the heat exchanger passes through cold air treatment box side wall and stretches out in cold air treatment box, with liquefied natural gas
The entrance of circulation connects.
6. the low-temperature cold store of the free-air refrigeration of recycling cold energy of liquefied natural gas according to claim 1, feature
It is, the air supply tube and backwind tube are respectively multiple, and be respectively spaced from each other setting.
7. the low-temperature cold store of the free-air refrigeration of recycling cold energy of liquefied natural gas according to claim 2, feature
It is, forms multiple spaced apart air outlets on the tube wall of the horizontal blast pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910862448.7A CN110530092A (en) | 2019-09-12 | 2019-09-12 | Recycle the low-temperature cold store of the free-air refrigeration of cold energy of liquefied natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910862448.7A CN110530092A (en) | 2019-09-12 | 2019-09-12 | Recycle the low-temperature cold store of the free-air refrigeration of cold energy of liquefied natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110530092A true CN110530092A (en) | 2019-12-03 |
Family
ID=68668340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910862448.7A Pending CN110530092A (en) | 2019-09-12 | 2019-09-12 | Recycle the low-temperature cold store of the free-air refrigeration of cold energy of liquefied natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110530092A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664653A (en) * | 2020-06-17 | 2020-09-15 | 大庆市中瑞燃气有限公司 | BOG cold volume and methane recycle device |
-
2019
- 2019-09-12 CN CN201910862448.7A patent/CN110530092A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664653A (en) * | 2020-06-17 | 2020-09-15 | 大庆市中瑞燃气有限公司 | BOG cold volume and methane recycle device |
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