CN113199980A - Liquid nitrogen cryogenic refrigerator car - Google Patents
Liquid nitrogen cryogenic refrigerator car Download PDFInfo
- Publication number
- CN113199980A CN113199980A CN202110689272.7A CN202110689272A CN113199980A CN 113199980 A CN113199980 A CN 113199980A CN 202110689272 A CN202110689272 A CN 202110689272A CN 113199980 A CN113199980 A CN 113199980A
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- carriage
- limiting plate
- refrigeration
- refrigerator car
- 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.)
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Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 239000007788 liquid Substances 0.000 title claims abstract description 95
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 81
- 238000003860 storage Methods 0.000 claims abstract description 70
- 238000005057 refrigeration Methods 0.000 claims abstract description 40
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000009423 ventilation Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 6
- 230000003137 locomotive effect Effects 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/20—Refrigerated goods vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3202—Cooling devices using evaporation, i.e. not including a compressor, e.g. involving fuel or water evaporation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a liquid nitrogen cryogenic refrigerator car, which comprises a car head, a car frame and a carriage, wherein a movable door is arranged on one side of the carriage, a contact switch is arranged on one side of the bottom of the carriage, a sealing plate is arranged in the carriage, the sealing plate divides the carriage into a refrigeration area and a storage area, a control box is arranged on one side of the refrigeration area, a temperature sensor, an oxygen concentration sensor and a control unit are arranged on one side of the sealing plate in the storage area, a liquid nitrogen storage tank is arranged in the refrigeration area, a liquid injection port is formed in the liquid nitrogen storage tank, a liquid outlet pipe and an electromagnetic valve are sequentially arranged at the top of the liquid nitrogen storage tank, the liquid outlet pipe extends into the storage area and is in sealed connection with an atomization system, the atomization system is fixed at the top of the storage area, and a ventilation fan is arranged above the right side of the storage area; this liquid nitrogen cryrogenic refrigerator car can improve cooling refrigeration effect, makes the carriage not the temperature more even, and inside temperature, oxygen content real-time detection, and the inner structure of refrigeration district is also comparatively stable, uses portably, is fit for using widely.
Description
Technical Field
The invention relates to the technical field of refrigerated trucks, in particular to a liquid nitrogen cryogenic refrigerated truck.
Background
The food refrigeration chain is a system project for ensuring the food quality and reducing the food loss by keeping perishable food in a specified low-temperature environment in all links before production, storage, transportation and sale until consumption. It is established along with the progress of scientific technology and the development of refrigeration technology, and is based on food freezing technology and takes refrigeration technology as a means.
The liquid nitrogen is a colorless, tasteless, non-corrosive, low-viscosity transparent liquid, and has stable chemical properties. The latent heat of vaporization of liquid nitrogen is 5.56kJ/mol, and the liquid nitrogen can absorb a large amount of heat when being vaporized, so that the liquid nitrogen is an ideal refrigerant. Along with the development of refrigeration technology, the novel refrigeration mode of liquid nitrogen refrigeration is quietly created. The refrigerator car taking liquid nitrogen as a refrigerating medium has the advantages of simple structure, reliable operation, high cooling speed, uniform temperature distribution in the carriage, environmental protection and the like, and is popular with the public; however, the refrigerator car which is refrigerated by taking liquid nitrogen as an energy source in the market at present has a single structure, and the temperature in the carriage is uneven due to uneven liquid nitrogen supply; because the liquid nitrogen is introduced inwards in the transportation process, the oxygen content in the carriage is lower, and when the carriage door is directly opened to load and unload goods, a large amount of nitrogen can be sucked by workers, and certain potential safety hazards are also generated.
Disclosure of Invention
The invention aims to solve the problems and provides a liquid nitrogen deep cooling refrigerator car which can improve the cooling and refrigerating effects, enables the temperature of a carriage to be more uniform, detects the internal temperature and the oxygen content in real time, has a more stable structure in a refrigerating area and is simple and convenient to use.
In order to achieve the purpose, the technical scheme of the invention is as follows: a liquid nitrogen cryogenic refrigerator car comprises a car head, a car frame and a carriage arranged on the car frame, wherein a car door is arranged at the end part of the carriage, a movable door is arranged on one side of the carriage, a contact switch is arranged on one side of the bottom of the carriage, the car door is matched with the contact switch when closed, a sealing plate is arranged in the carriage, the carriage is divided into a refrigeration area and a storage area by the sealing plate, the movable door is arranged outside the refrigeration area, a control box is arranged on one side of the refrigeration area by the sealing plate, a temperature sensor, an oxygen concentration sensor and a control unit are arranged on one side of the storage area by the sealing plate, a liquid nitrogen storage tank is arranged in the refrigeration area, a liquid injection port is formed in the liquid nitrogen storage tank, a liquid outlet pipe and an electromagnetic valve are sequentially arranged at the top of the liquid nitrogen storage tank, the liquid outlet pipe extends into the storage area and is in sealing connection with an atomization system, and the atomization system is fixed at the top of the storage area, and a ventilation fan is arranged at the upper right part of the goods storage area.
Preferably, the atomizing system includes inner tube and outer tube, the inner tube passes through the strengthening rib to be fixed in the outer tube, inner tube and outer tube are located the same axis, the bottom of inner tube is followed its length direction is even and is equipped with a plurality of second nozzles, the second nozzle passes outer tube and inner tube intercommunication, the outer wall both sides of outer tube are equipped with first branch pipe and second branch pipe respectively, the bottom of first branch pipe and second branch pipe is even is equipped with a plurality of first nozzles.
Preferably, the volume ratio of the inner pipe to the outer pipe is 1:3, wherein the length of the inner pipe is consistent with that of the outer pipe, and the inner pipe and the outer pipe are along the length direction of the storage area and are fixed to the top of the storage area through pipe brackets.
Preferably, contact switch and the control unit electric connection, the solenoid valve of control unit control liquid nitrogen storage jar top, the control box is connected with temperature sensor and oxygen concentration sensor signal, the pump machine in the temperature sensor control liquid nitrogen storage jar, oxygen concentration sensor and ventilation fan's control switch linkage.
Preferably, the both sides of liquid nitrogen storage jar still are equipped with first limiting plate and second limiting plate, it is sunken to be equipped with the semicircle on first limiting plate and the second limiting plate respectively, liquid nitrogen storage jar is established between two semicircle dents, the sunken diameter of semicircle and the external diameter phase-match of liquid nitrogen storage jar.
Preferably, first limiting plate level is fixed in the refrigeration district, the second limiting plate passes through both sides spout level and inserts in the refrigeration district, one of them the spout is established in one side of closing plate, and the inner wall in the refrigeration district is established to another spout, the lower surface of spout is equipped with the counter bore, the outside of counter bore is equipped with the waist hole, be equipped with the spring in the counter bore, the top of spring is fixed with the gag lever post, the waist downthehole is equipped with presses the holding rod, the one end of pressing the holding rod outwards extends, and the other end passes the waist hole and is fixed with the gag lever post.
Preferably, the first limiting plate and the second limiting plate are consistent in height, and the outer wall of the second limiting plate is in contact with the limiting rod during limiting.
Preferably, in a normal state, the limiting rod extends out of the counter bore to be in contact with the outer wall of the second limiting plate, and when the pressing rod is pressed, the limiting rod retracts into the counter bore.
The invention discloses a liquid nitrogen cryogenic refrigerator car, which comprises a car head, a car frame and a carriage, wherein a movable door is arranged on one side of the carriage, a contact switch is arranged on one side of the bottom of the carriage, a sealing plate is arranged in the carriage, the sealing plate divides the carriage into a refrigeration area and a storage area, a control box is arranged on one side of the refrigeration area, a temperature sensor, an oxygen concentration sensor and a control unit are arranged on one side of the sealing plate in the storage area, a liquid nitrogen storage tank is arranged in the refrigeration area, a liquid injection port is formed in the liquid nitrogen storage tank, a liquid outlet pipe and an electromagnetic valve are sequentially arranged at the top of the liquid nitrogen storage tank, the liquid outlet pipe extends into the storage area and is in sealed connection with an atomization system, the atomization system is fixed at the top of the storage area, and a ventilation fan is arranged above the right side of the storage area; this liquid nitrogen cryrogenic refrigerator car can improve cooling refrigeration effect, makes the carriage not the temperature more even, and inside temperature, oxygen content real-time detection, and the inner structure of refrigeration district is also comparatively stable, uses portably, is fit for using widely.
Drawings
FIG. 1 is a schematic view of a liquid nitrogen cryogenic refrigerator car according to the present invention.
FIG. 2 is a first structural diagram of a carriage in the liquid nitrogen cryogenic refrigerator car according to the present invention.
FIG. 3 is a schematic structural diagram of a carriage in the liquid nitrogen cryogenic refrigerator car according to the present invention.
FIG. 4 is a schematic structural diagram of an atomization system in a liquid nitrogen cryogenic refrigerator car according to the present invention.
Fig. 5 is an enlarged schematic view of the structure at a in fig. 3 according to the present invention.
FIG. 6 is a schematic structural diagram of a first limiting plate and a second limiting plate of the liquid nitrogen cryogenic refrigerator car according to the present invention.
Fig. 7 is an enlarged view of the structure at B in fig. 2 according to the present invention.
FIG. 8 is a schematic structural view of a limiting rod and a pressing rod in the liquid nitrogen cryogenic refrigerator car according to the present invention.
1. A headstock; 2. a frame; 3. a carriage; 31. a sealing plate; 311. a temperature sensor; 312. an oxygen concentration sensor; 313. a control unit; 314. a chute; 315. a counter bore; 316. a spring; 317. a waist hole; 4. a compartment door; 41. a contact switch; 5. a movable door; 6. a refrigeration zone; 61. a liquid nitrogen storage tank; 62. a liquid injection port; 63. a liquid outlet; 64. an electromagnetic valve; 7. a storage area; 8. a control box; 9. an atomization system; 91. an inner tube; 92. an outer tube; 93. reinforcing ribs; 94. a first branch pipe; 95. a second branch pipe; 96. a first nozzle; 97. a second nozzle; 10. a first limit plate; 11. a second limiting plate; 12. the semicircular recess; 13. a limiting rod; 14. the rod is pressed.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Referring to fig. 1-8, to achieve the above object, the technical solution of the present invention is: the utility model provides a liquid nitrogen cryrogenic refrigerator car, includes locomotive 1, carriage 3 that sets up on frame 2 and the frame 2, the tip of carriage 3 is equipped with carriage door 4, one side of carriage 3 is equipped with dodge gate 5, bottom one side of carriage 3 is equipped with contact switch 41, when carriage door 4 is closed with contact switch 41 cooperation, be equipped with closing plate 31 in the carriage 3, closing plate 31 divides carriage 3 into refrigeration district 6 and storage goods district 7, dodge gate 5 is established in the outside of refrigeration district 6, for the dodge gate 5 of refrigeration district 6, closing plate 31 is equipped with control box 8 in one side of refrigeration district 6, closing plate 31 is equipped with temperature sensor 311, oxygen concentration sensor 312 and the control unit 313 in one side of storage goods district 7, be equipped with liquid nitrogen storage jar 61 in the refrigeration district 6, be equipped with on the liquid nitrogen storage jar 61 and annotate liquid mouth 62, the top of liquid nitrogen storage jar 61 is equipped with liquid outlet 63 in proper order, Drain pipe 65 and solenoid valve 64, drain pipe 65 extends and with atomizing system 9 sealing connection to storing up goods district 7, atomizing system 9 is fixed at the top of storing up goods district 7, the upper right side of storing up goods district 7 is equipped with ventilation fan 71.
Preferably, the atomizing system 9 includes an inner tube 91 and an outer tube 92, the inner tube 91 is fixed in the outer tube 92 by a reinforcing rib 93, the inner tube 91 and the outer tube 92 are located on the same axis, a plurality of second nozzles 97 are uniformly arranged at the bottom of the inner tube 91 along the length direction thereof, the second nozzles 97 penetrate through the outer tube 92 and are communicated with the inner tube 91, a first branch tube 94 and a second branch tube 95 are respectively arranged at two sides of the outer wall of the outer tube 92, and a plurality of first nozzles 96 are uniformly arranged at the bottoms of the first branch tube 94 and the second branch tube 95; the volume ratio of the inner tube 91 to the outer tube 92 is 1:3, and since the inner tube 91 is in the outer tube 92, the actual volume ratio is 1:2 (the total volume of the outer tube 92 minus the volume of the inner tube 91) during use, wherein the lengths of the inner tube 91 and the outer tube 92 are the same, and the inner tube 91 and the outer tube 92 are along the length direction of the storage area 7 and are fixed to the top of the storage area 7 through tube brackets.
The contact switch 41 is electrically connected with the control unit 313, the control unit 313 controls the electromagnetic valve 64 above the liquid nitrogen storage tank 61, the control box 8 is in signal connection with the temperature sensor 311 and the oxygen concentration sensor 312, the temperature sensor 311 controls a pump in the liquid nitrogen storage tank 61, and the oxygen concentration sensor 312 is linked with a control switch of the ventilation fan 71; when the contact switch 41 is closed and started through the carriage door 4, the electromagnetic valve 64 is opened, the temperature in the cargo storage area 7 is sensed through the temperature sensor 311, when the temperature does not reach the preset temperature, the pump in the liquid nitrogen storage tank 61 is started, and liquid nitrogen is sprayed into the cargo storage area 7 through the atomization system 9, so that the interior is reduced; when unloading is needed, the carriage door 4 is opened, the contact switch 41 is closed, the electromagnetic valve 64 is closed, the whole atomization system 9 is interrupted, and liquid nitrogen is not supplied to the cargo storage area 7 any more; at this time, the internal oxygen content is too low, and the internal air is extracted by the ventilation fan 71, so that the internal air and the external air flow back, and the staff is prevented from entering too much nitrogen.
As a preferable scheme, a first limiting plate 10 and a second limiting plate 11 are further arranged on two sides of the liquid nitrogen storage tank 61, semicircular depressions 12 are respectively arranged on the first limiting plate 10 and the second limiting plate 11, the liquid nitrogen storage tank 61 is arranged between the two semicircular depressions 12, the diameters of the semicircular depressions 12 are matched with the outer diameter of the liquid nitrogen storage tank 61, the first limiting plate 10 is horizontally fixed in the refrigeration zone 6, the second limiting plate 11 is horizontally inserted into the refrigeration zone 6 through sliding grooves 314 on two sides, one of the sliding grooves 314 is arranged on one side of the sealing plate 31, the other sliding groove 314 is arranged on the inner wall of the refrigeration zone 6, a counter bore 315 is arranged on the lower surface of the sliding groove 314, a waist hole 317 is arranged on the outer side of the counter bore 315, a spring 316 is arranged in the counter bore 315, a limiting rod 13 is fixed on the top of the spring 316, a pressing rod 14 is arranged in the waist hole 317, one end of the pressing rod 4 extends outwards, the other end passes waist hole 317 and is fixed with gag lever post 13, the highly uniform of first limiting plate 10 and second limiting plate 11, during spacing, the outer wall of second limiting plate 11 contacts with gag lever post 13, presses and holds during the pressure pole 14, gag lever post 14 contracts to in the counter bore 315, and the second limiting plate 11 of being convenient for slides and shifts out.
When the liquid nitrogen cryogenic refrigerator car is used, the contact switch 41 is touched through the car door 4, the electromagnetic valve 64 is started, the pump in the liquid nitrogen storage tank 61 is started through the temperature sensor 311, and liquid nitrogen in the liquid nitrogen storage tank 61 enters the cargo storage area 7 through the atomization system 9;
the liquid nitrogen entering the inner pipe 91 is sprayed downwards from the second nozzle 97, the liquid nitrogen entering the outer pipe 92 enters the first branch pipe 94 and the second branch pipe 95 on the two sides and is sprayed out from the first nozzle 96 below the first branch pipe 94 and the second branch pipe 95, the first branch pipe 94 and the second branch pipe 95 as well as the first nozzle 96 and the second nozzle 97 are uniformly paved on the top of the storage area 7, the refrigeration and cooling effects are improved, and the internal temperature is more uniform; because liquid nitrogen is introduced inwards in the transportation process, the oxygen content in the storage area 7 is low, and the oxygen concentration sensor 312 senses and starts the ventilation fan 71 to enable the inside air and the outside air to be convected;
and first limiting plate 10 encloses liquid nitrogen storage jar 61 tightly with second limiting plate 11, and second limiting plate 11 is convenient for the installation and is dismantled to play good limiting displacement to liquid nitrogen storage jar 61, prevent the range of rocking of liquid nitrogen in liquid nitrogen storage jar 61, improve overall stability.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (8)
1. The utility model provides a liquid nitrogen cryrogenic refrigerator car, includes the locomotive, the carriage that sets up on frame and the frame, the tip in carriage is equipped with the carriage door, one side in carriage is equipped with dodge gate, its characterized in that: the utility model discloses a refrigerator, including carriage door, closing door, oxygen concentration sensor, liquid nitrogen storage jar, the bottom one side in carriage is equipped with contact switch, when carriage door is closed with contact switch cooperation, be equipped with the closing plate in the carriage, the closing plate divide into the carriage refrigeration district and stores up the goods district with the carriage, the dodge gate is established in the outside in refrigeration district, the closing plate is equipped with the control box in one side in refrigeration district, the closing plate is equipped with temperature sensor, oxygen concentration sensor and the control unit in one side of storing up the goods district, be equipped with liquid nitrogen storage jar in the refrigeration district, be equipped with on the liquid nitrogen storage jar and annotate the liquid mouth, the top of liquid nitrogen storage jar is equipped with liquid outlet, drain pipe and solenoid valve in proper order, the drain pipe extends and with atomizing system sealing connection to storing up the goods district, atomizing system fixes at the top in storing up the goods district, the upper right side in storage goods district is equipped with ventilation fan.
2. The liquid nitrogen cryogenic refrigerator car of claim 1, wherein: the atomizing system includes inner tube and outer tube, the inner tube passes through the strengthening rib to be fixed in the outer tube, inner tube and outer tube are located the same axis, the bottom of inner tube is followed its length direction is even and is equipped with a plurality of second nozzles, the second nozzle passes outer tube and inner tube intercommunication, the outer wall both sides of outer tube are equipped with first branch pipe and second branch pipe respectively, the bottom of first branch pipe and second branch pipe is even is equipped with a plurality of first nozzles.
3. The liquid nitrogen cryogenic refrigerator car of claim 2, wherein: the volume ratio of the inner pipe to the outer pipe is 1:3, the length of the inner pipe is consistent with that of the outer pipe, and the inner pipe and the outer pipe are fixed to the top of the storage area through pipe brackets along the length direction of the storage area.
4. The liquid nitrogen cryogenic refrigerator car of claim 1, wherein: contact switch and the control unit electric connection, the solenoid valve of control unit control liquid nitrogen storage jar top, the control box is connected with temperature sensor and oxygen concentration sensor signal, the pump machine in the temperature sensor control liquid nitrogen storage jar, oxygen concentration sensor and ventilation fan's control switch linkage.
5. The liquid nitrogen cryogenic refrigerator car of claim 1, wherein: the both sides of liquid nitrogen storage jar still are equipped with first limiting plate and second limiting plate, it is sunken to be equipped with the semicircle on first limiting plate and the second limiting plate respectively, liquid nitrogen storage jar is established between two semicircle sunken, the sunken diameter of semicircle and the external diameter phase-match of liquid nitrogen storage jar.
6. The liquid nitrogen cryogenic refrigerator car of claim 5, wherein: first limiting plate level is fixed in the refrigeration district, the second limiting plate passes through both sides spout level and inserts in the refrigeration district, one of them the spout is established in one side of closing plate, and the inner wall in the refrigeration district is established to another spout, the lower surface of spout is equipped with the counter bore, the outside of counter bore is equipped with the waist hole, be equipped with the spring in the counter bore, the top of spring is fixed with the gag lever post, the waist downthehole pressure holding rod that is equipped with, the one end of pressure holding rod outwards extends, and the other end passes the waist hole and fixes with the gag lever post.
7. The liquid nitrogen cryogenic refrigerator car of claim 6, wherein: the height of the first limiting plate is consistent with that of the second limiting plate, and when the first limiting plate is limited, the outer wall of the second limiting plate is in contact with the limiting rod.
8. The liquid nitrogen cryogenic refrigerator car of claim 6, wherein: in a normal state, the limiting rod extends out of the counter bore to be in contact with the outer wall of the second limiting plate, and when the pressing rod is pressed, the limiting rod retracts into the counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110689272.7A CN113199980B (en) | 2021-06-22 | 2021-06-22 | Liquid nitrogen cryogenic refrigerator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110689272.7A CN113199980B (en) | 2021-06-22 | 2021-06-22 | Liquid nitrogen cryogenic refrigerator car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113199980A true CN113199980A (en) | 2021-08-03 |
| CN113199980B CN113199980B (en) | 2022-05-10 |
Family
ID=77022589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110689272.7A Active CN113199980B (en) | 2021-06-22 | 2021-06-22 | Liquid nitrogen cryogenic refrigerator car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113199980B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115285235A (en) * | 2022-08-25 | 2022-11-04 | 安徽润象新材料科技有限公司 | Modular refrigerator car cargo tank |
| CN115962595A (en) * | 2023-03-16 | 2023-04-14 | 河南工学院 | Refrigerator car based on liquid nitrogen refrigeration and liquid nitrogen refrigeration system |
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| CN212353530U (en) * | 2020-06-02 | 2021-01-15 | 松下冷机系统（大连）有限公司 | Vehicle-mounted cold storage box |
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| CN104602926A (en) * | 2012-06-25 | 2015-05-06 | Rsc工业公司 | Cooling system and methods for cooling interior volumes of cargo trailers |
| CN205955481U (en) * | 2016-08-04 | 2017-02-15 | 深圳市华佳安运输有限公司 | Theftproof freight train |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115285235A (en) * | 2022-08-25 | 2022-11-04 | 安徽润象新材料科技有限公司 | Modular refrigerator car cargo tank |
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| CN115962595A (en) * | 2023-03-16 | 2023-04-14 | 河南工学院 | Refrigerator car based on liquid nitrogen refrigeration and liquid nitrogen refrigeration system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113199980B (en) | 2022-05-10 |
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