CN116986157A - Cold air circulation device for ship-borne refrigerated container - Google Patents
Cold air circulation device for ship-borne refrigerated container Download PDFInfo
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- CN116986157A CN116986157A CN202311254259.4A CN202311254259A CN116986157A CN 116986157 A CN116986157 A CN 116986157A CN 202311254259 A CN202311254259 A CN 202311254259A CN 116986157 A CN116986157 A CN 116986157A
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- 230000007246 mechanism Effects 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 29
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 7
- 230000000670 limiting effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 8
- 235000013305 food Nutrition 0.000 abstract description 7
- 239000003814 drug Substances 0.000 abstract description 4
- 229940079593 drug Drugs 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 2
- 230000002829 reductive effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 239000000306 component Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
- B65D88/744—Large containers having means for heating, cooling, aerating or other conditioning of contents heating or cooling through the walls or internal parts of the container, e.g. circulation of fluid inside the walls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention relates to the technical field of cooling equipment for marine ships, in particular to a cold air circulating device of a shipborne refrigerated container, which aims at food, medicines, fresh flowers and certain chemicals and needs to be transported at a specific temperature to prolong the shelf life and ensure the safety of the food in marine transportation.
Description
Technical Field
The invention relates to the technical field of cooling equipment for marine ships, in particular to a cold air circulating device for a ship-borne refrigerated container.
Background
In marine transport for food, pharmaceutical, flowers and certain chemicals: these goods need to be transported at a specific temperature to extend their shelf life and to ensure food safety, and it is necessary to use on-board refrigerated containers with cold air circulation devices for shipment, thereby ensuring the temperature requirements of these special goods during transportation.
The conventional cold air cycle of a refrigerated container for ships generally uses the following devices: the compressor is one of core components of a cold air circulation system of the refrigerated container, is responsible for compressing low-pressure and low-temperature evaporated refrigerant gas, boosting the pressure and heating the temperature to change the low-pressure and low-temperature evaporated refrigerant gas into high-pressure and high-temperature gas so as to release heat in the subsequent steps, and the condenser is used for emitting the heat released by the high-temperature and high-pressure refrigerant gas; the evaporator is a device for absorbing heat and converting liquid refrigerant gas into a vapor state, and is usually located inside a container, which absorbs heat in the container to maintain the goods in a desired low temperature state. The components together form a cold air circulation system of the refrigerated container for the ship, and the aim of maintaining the required temperature in the container is fulfilled by circulating and controlling the flow of the refrigerant gas. This helps to maintain freshness and quality of the goods during transport.
Unlike conventional refrigeration equipment, the use of the marine vessel refrigeration container cold air circulation device concentrates on the ship transportation on the sea, many cargoes have higher requirements on temperature, the marine vessel spans different air temperature zones during long-term sailing, the temperature protection of the cargoes is required by the refrigeration equipment, but the conventional cold air circulation device can cause the moisture in the air to condense into water drops when the air is cooled by the evaporator, so that the relative humidity is reduced, condensed water or dew can be formed inside the container, particularly in a high humidity environment, a more advanced cold circulation system can maintain the required humidity level by controlling the operation of the evaporator and the humidifier, but the addition of additional equipment brings additional initial cost and use cost, and the effect of the humidifier also needs a certain time, which has serious influence on some specific types of cargoes, such as certain foods and medicines.
In view of the above, in order to overcome the above technical problems, the present invention provides a cold air circulating device for a ship-borne refrigerated container, which solves the above technical problems.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the evaporator in the existing cold air circulation device of the shipborne refrigerated container can cause the reduction of the humidity in the container, and the problem that the humidity in the container can be reduced is not fundamentally solved when the transportation cost is increased due to the additional arrangement of the humidifier and the control system.
In order to solve the problems, the invention provides the following technical scheme.
The cold air circulation device of the shipborne refrigerated container comprises a container body and an air compressor, wherein the container body is used in marine ship transportation, and is mainly suitable for certain specific types of goods which need to be refrigerated and stored and are particularly sensitive to humidity, such as certain foods and medicines; the inside of container body installs air compressor, still includes cold circulation mechanism, cold circulation mechanism carries out vortex drainage to compressed gas through one-way water conservancy diversion piece, forms the two vortex of the reverse pivoted of inner and outer lane, and the motion makes inner and outer lane vortex constantly rub in the hot air pipe, leads to inner and outer lane vortex temperature difference and angular velocity difference to be greater and greater, forms cold and hot two air current, and hot air current discharges into power component through the overflow hole as the energy source, and cold air current passes through fan and play tuber pipe and discharges into the inside realization air conditioning circulation of container body.
The cold circulation mechanism further comprises an air inlet pipe, a hot air pipe, a cold air pipe, a return pipe and a circulation pipe, one end of the air inlet pipe is fixedly arranged on an air outlet of the air compressor, the unidirectional flow guide block is fixedly arranged below the air inlet pipe, the hot air pipe and the cold air pipe are fixedly arranged on two sides of the unidirectional flow guide block, one end of the circulation pipe is fixedly arranged on the side face of the hot air pipe, the other end of the circulation pipe is fixedly arranged on one side of the power assembly, the return pipe is fixedly arranged on the side face of the power assembly, the air outlet pipe is fixedly arranged on one side of the power assembly, the hot air pipe, the cold air pipe, the circulation pipe and the air outlet pipe form a 'back' shape, compressed air is enabled to expand continuously through the unidirectional flow guide block to accelerate, after entering the hot air pipe, cold and hot air flows are separated into vortex flows, free vortex flows are formed, and the free vortex flows are enabled to rotate at the same time when the air enters the unidirectional flow guide block, and the free vortex flows are enabled to be larger at the angular speeds close to the central position, so that friction forces are generated between the vortex flows due to different angular speeds, energy loss of the central vortex flows is only caused, and energy loss of the central vortex flows are converted into heat energy loss of the outside vortex flows, and heat energy loss, so that the temperature effects are reduced. The cold circulation mechanism divides the compressed gas into flow parts through a return pipeline, and then carries out refrigeration and air recovery through an air outlet pipe and a return pipe.
The cross section shape of the unidirectional flow guide block is in a shape of a convex, the lower part of the shape of the convex is a sealing block, the sealing block in the shape of the convex carries out unidirectional circulation control on a three-way pipe consisting of an air inlet pipe, a hot air pipe and a cold air pipe, so that compressed air completely enters the hot air pipe through the unidirectional flow guide block, one side of the sealing block is provided with a spiral guide groove, the guide groove is used for giving the air an initial angular velocity, thereby increasing the temperature reduction speed, and the spiral is used for enabling the cold circulation mechanism to expand and accelerate the air to form a vortex rotating at a high speed.
The side annular array fixed mounting of sealing block has the restriction piece of crescent, and the restriction piece is used for further providing great angular velocity with the compressed gas that passes through the guide way, and compressed gas can continue the inflation acceleration in the middle of the restriction piece of crescent, and the crescent is offered the counter flow hole slope for the sealing block centre to make outlying compressed air obtain great angular velocity, and the compressed air of inner circle receives less influence, further preliminary formation inside and outside double vortex air current, thereby cold circulation mechanism carries out vortex separation to inside and outside two partial air currents.
The inside fixed mounting of hot air pipe has bullet head shape reposition of redundant personnel piece, and bullet head shape reposition of redundant personnel piece's front portion is the round platform shape, and overflow aperture has been seted up to bullet head shape's side annular, and cold and hot air current is in reposition of redundant personnel piece department, because peripheral hot air current has faster angular velocity to flow out fast through the overflow aperture, and the cold air current of inner circle is because by the continuous compression of bullet head shape reposition of redundant personnel piece, leads to atmospheric pressure rising so that can only reverse through one-way guide block flow direction cold air pipe, the side joint of reposition of redundant personnel piece has sealed rubber ring, and sealed rubber ring is used for strengthening the installation stability and the leakproofness of reposition of redundant personnel piece, and cold circulation mechanism intercepts the less air current of inner circle energy through bullet head shape.
The inside of cold air pipe has been seted up convergence shape spout and rectangular transition chamber, and the one end pipe diameter that the shower nozzle of convergence shape is close to one-way water conservancy diversion piece is less, and is close to one side pipe diameter of cold air pipe and increase gradually, and the cold air current passes through transition chamber outwards moves from the shower nozzle again, and convergence shape shower nozzle makes cold circulation mechanism pass through the low-speed cold air current of piling up in the opposite direction, because the atmospheric pressure of convergence nature shower nozzle both sides is not led, so the cold air current can tend to flow to the less one end of atmospheric pressure to guarantee that the cold air current can pass through the cold air pipe fast.
Aiming at the hot air flow, the energy of the hot air flow with high temperature and high pressure can be collected for heat supply on a ship and the like, and the energy of the hot air flow with high temperature and high pressure can be converted through a power assembly to drive a fan so as to accelerate the flow speed of the cold air flow, ensure the cold circulation effect, and add the utilized air into an air compressor again to reduce the energy loss of the air compressor; the power assembly comprises a sealing cavity, a stator turbine, a rotor turbine and a fan, wherein the cross section of the sealing cavity is trapezoidal, and the trapezoidal shape enables hot air flow to pass through multiple energy conversion, so that the energy conversion rate of the power assembly is improved; the stator turbine is fixedly arranged on the inclined side of the trapezoid, the rotating shaft is fixedly arranged on the bottom side of the trapezoid, the fan is fixedly arranged at one end of the rotating shaft, the rotor turbine is fixedly arranged on the rotating shaft, hot air flows enter the power assembly through the backflow pipe under the flow guiding effect of the stator turbine, and the rotor turbine rapidly rotates to enable the cold circulation mechanism to rapidly release cold air flow.
The stator turbine and the rotor turbine are sequentially arranged, so that the cooling circulation mechanism can carry out multistage energy conversion on the hot air flow, and the distance value between the rotating blades is sequentially increased along the direction of an air outlet pipe of the rotating shaft, so that the cooling circulation mechanism can improve the energy conversion efficiency.
The guide blades are arranged in a twisted shape, so that the angular speed of the hot air flow passing through the rotating blades is increased again, and the angle of attack value of the guide blades close to one side of the air outlet pipe is large, so that the energy of the hot air flow can be utilized and converted as much as possible, and the high-pressure hot air flow can be cooled and depressurized through the cold circulation mechanism and drives the rotating shaft to rotate.
The beneficial effects of the invention are as follows.
1. According to the container for the marine vessel, the cold circulation mechanism is arranged for cooling and moisturizing the container for the marine vessel, the cold circulation mechanism carries out vortex drainage on compressed gas through the unidirectional flow guide block to form double vortex with the inner ring and the outer ring rotating reversely, hot air flows are discharged into the power assembly through the overflow holes to serve as energy sources, the power assembly can drive the fan to ensure the cold air circulation effect, and cold air flows are discharged into the container body through the fan and the air outlet pipe to realize cold air circulation.
2. According to the invention, the unidirectional flow guide block is arranged, so that the compressed air continuously expands and accelerates the passing air flow, and after entering the hot air pipe, the high-speed air flow can generate vortex to separate cold and hot air flows, when the air enters the unidirectional flow guide block, a free vortex is formed, and the angular speed of the free vortex is higher when the angular speed of the free vortex rotates closer to the central position, so that friction force is generated between vortex layers due to different angular speeds, and the kinetic energy and the heat energy of the outside vortex are converted, so that the effect of reducing the temperature is achieved.
3. According to the invention, the power assembly is arranged to convert the energy of high-temperature and high-pressure hot air flow, the fan is driven to accelerate the flow speed of cold air flow, the cold circulation effect is ensured, and the utilized air is added into the air compressor again, so that the energy loss of the air compressor is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly explain the drawings needed in the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
The above and other aspects of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which.
Fig. 1 is a schematic view of the present invention installed in a marine vessel container body.
Fig. 2 is a schematic diagram of the overall structure of the present invention.
Fig. 3 is a schematic structural view of the cold circulation mechanism of the present invention.
Fig. 4 is a schematic cross-sectional view of the cold circulation mechanism of the present invention.
FIG. 5 is a schematic view of the direction of gas flow according to the present invention.
Fig. 6 is a schematic structural view of the unidirectional guide block of the present invention.
Fig. 7 is a schematic view of the structure of the sealing block of the present invention.
FIG. 8 is a schematic view of a turning vane twist structure of the present invention.
FIG. 9 is a schematic view of the airflow direction of the power assembly of the present invention.
In the figure: 1. a container body; 2. an air compressor; 3. a cold circulation mechanism; 31. an air inlet pipe; 32. a unidirectional flow guide block; 321. a sealing block; 322. a guide groove; 323. a flow-limiting block; 33. a hot air pipe; 331. a shunt block; 332. an overflow aperture; 333. sealing rubber rings; 34. a cold air pipe; 341. a spray head; 342. a transition chamber; 35. a return pipe; 36. a circulation pipe; 37. a power assembly; 371. sealing the cavity; 372. a stator turbine; 373. a rotor turbine; 374. a rotating shaft; 375. a guide vane; 376. rotating the blade; 377. a fan; 38. and (5) an air outlet pipe.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 9, a cold air circulation device for a refrigerated container on a ship comprises a container body 1 and an air compressor 2, wherein the air compressor 2 is installed in the container body 1, the cold air circulation device 3 is also arranged in the container body, the cold air circulation device 3 is used for cooling equipment for containers on a marine ship, the marine ship is an important transportation means for transporting goods, the containers are means for mainly storing goods in the transportation of the marine ship, for some specific types of goods such as certain foods and medicines, the influence is serious, because the specific types of goods are sensitive to humidity, the existing cooling device using the compressor principle can have a larger influence on the humidity in the container body 1, and thus, a humidity control device is additionally arranged for adjustment, the cold air circulation device 3 carries out vortex drainage on compressed air through a one-way flow guide block 32, double vortex flow with the inner ring and the outer ring reversely rotated is formed, the inner ring vortex flow and the outer ring vortex flow continuously rubs in a hot air pipe 33, the temperature difference and the angular speed difference of the inner ring vortex flow are large, two-shaped cold air flows and the hot air flow are formed, the cold air flow and the hot air flow is discharged into the container body through an overflow hole 332 as an energy source, and the cold air flow is discharged into the container through a fan 377 and an inner circulation device 38 for realizing the internal circulation of the container 1.
As shown in fig. 2 and 3, the cold circulation mechanism 3 further includes an air inlet pipe 31, a hot air pipe 33, a cold air pipe 34, a return pipe 35 and a circulation pipe 36, one end of the air inlet pipe 31 is fixedly installed on an air outlet of the air compressor 2, the unidirectional flow guiding block 32 is fixedly installed below the air inlet pipe 31, the hot air pipe 33 and the cold air pipe 34 are fixedly installed at two sides of the unidirectional flow guiding block 32, one end of the circulation pipe 36 is fixedly installed at the side of the hot air pipe 33, the other end of the circulation pipe 36 is fixedly installed at one side of the power assembly 37, the return pipe 35 is fixedly installed at the side of the power assembly 37, the air outlet pipe 38 is fixedly installed at one side of the power assembly 37, the hot air pipe 33, the cold air pipe 34, the circulation pipe 36 and the air outlet pipe 38 form a shape, compressed air is continuously expanded and accelerated by the unidirectional flow guiding block 32, after entering the hot air pipe 33, cold and hot air flows are separated by a vortex, when the air enters the unidirectional flow guiding block 32, a free vortex is formed, the angular velocity of the free vortex is larger as the angular velocity of the free vortex is closer to the center position, the angular velocity of the free vortex is larger than the angular velocity of the side of the vortex, the vortex is the vortex flow, and the temperature is different, and the vortex energy is lost due to the fact that the vortex energy is reduced because the vortex energy is different and the vortex energy is generated, and the vortex energy is due to the temperature energy and the vortex energy is reduced; the cold circulation mechanism 3 divides the compressed gas through a return pipeline and then carries out refrigeration and air recovery through an air outlet pipe and a return pipe 35.
In the working process, the air compressor 2 is started to input compressed air into the unidirectional flow guide block 32 through the air inlet pipe 31, the unidirectional flow guide block 32 enables the passing air flow to expand continuously and accelerate, after entering the hot air pipe 33, the high-speed air flow can generate vortex to separate cold and hot air flows, and the hot air flow can enter the return pipe 35 through the flow dividing block 331 to serve as an energy source of the power assembly 37 to enable the power assembly 37 to rotate; the cold air flow is driven by the power assembly 37 through the cold air pipe 34 to rapidly cool the interior of the container body 1.
As shown in fig. 5, the cross-section of the unidirectional flow guiding block 32 is in a shape of a "convex" and the lower part of the "convex" is a sealing block 321, the "convex" sealing block 321 controls the unidirectional flow of the three-way pipe consisting of the air inlet pipe 31, the hot air pipe 33 and the cold air pipe 34, so that the compressed air enters the hot air pipe 33 through the unidirectional flow guiding block 32, one side of the sealing block 321 is provided with a spiral guiding groove 322, the guiding groove 322 is used for giving the air an initial angular velocity, thereby increasing the temperature decreasing speed, and the spiral is used for enabling the expansion acceleration air of the cold circulation mechanism 3 to form a vortex rotating at a high speed.
As shown in fig. 5, the side annular array of the sealing block 321 is fixedly provided with a crescent-shaped flow limiting block 323, the flow limiting block 323 is used for further providing a larger angular velocity for the compressed gas passing through the guide groove 322, the compressed gas flows in the middle of the crescent-shaped flow limiting block 323 and continues to expand and accelerate, the crescent is inclined relative to the reverse flow hole formed in the middle of the sealing block 321, so that the peripheral compressed air obtains a larger angular velocity, the compressed air of the inner ring is less influenced, and further the inner and outer double-vortex air flows are primarily formed, so that the cold circulation mechanism 3 carries out vortex separation on the inner and outer part air flows.
In the working process, compressed air is limited by the sealing block 321 to move only to one side of the hot air pipe 33, a certain angular velocity is obtained under the guiding action of the spiral guiding groove 322, a larger angular velocity is obtained through a gap between the limiting blocks, and in the process, the difference of the angular velocities of the vortex of the inner ring and the vortex of the outer ring is larger and larger, so that cold air flow with lower internal angular velocity and hot air flow with higher peripheral angular velocity are formed.
As shown in fig. 6, a bullet-shaped flow dividing block 331 is fixedly installed in the hot air pipe 33, the front part of the bullet-shaped flow dividing block 331 is in a truncated cone shape, an overflow hole 332 is annularly formed in the side surface of the bullet shape, cold and hot air flows out of the flow dividing block 331 quickly due to the fact that peripheral hot air flows at a higher angular speed can flow out of the overflow hole 332, and cold air flow in the inner ring can only reversely flow to the cold air pipe 34 through a unidirectional guide block due to the fact that the cold air flow in the inner ring is continuously compressed by the bullet-shaped flow dividing block 331, a sealing rubber ring 333 is clamped on the side surface of the flow dividing block 331, the sealing rubber ring 333 is used for reinforcing the installation stability and the sealing performance of the flow dividing block 331, and the cold circulation mechanism 3 intercepts air flow with low energy in the inner ring through the bullet shape.
As shown in fig. 3, a converging nozzle and a rectangular transition cavity 342 are formed in the cold air pipe 34, the converging nozzle 341 has a smaller pipe diameter near one end of the unidirectional flow guiding block 32, and a side pipe diameter near the cold air pipe 34 is gradually increased, the cold air flows through the transition cavity 342 and then moves outwards from the nozzle 341, the converging nozzle 341 makes the cold circulation mechanism 3 reversely pass the accumulated low-speed cold air flow, and the cold air flow tends to flow to the end with smaller air pressure due to different air pressures at two sides of the converging nozzle 341, so that the cold air flow can be ensured to quickly pass through the cold air pipe 34.
During operation, compressed air is gradually expanded and accelerated by the unidirectional guide block 32. Once in the hot air duct 33, the high velocity air flow is split into two cold and hot streams, creating a swirling air flow. After entering the unidirectional flow block 32, the gas will form a free vortex. It is worth noting here that the rotational speed of the free vortex depends on its distance from the central position, the further the distance the faster the rotational speed. Due to the difference in rotational speed between the vortices, friction is generated between them, which results in a decrease in the energy of the central vortex, while the kinetic and thermal energy of the outer vortices increase, thus lowering the temperature.
As shown in fig. 7, 8 and 9, for the hot air flow, the energy of the hot air flow with high temperature and high pressure can be converted by the power component 37, so that the fan 377 is driven to accelerate the flow speed of the cold air flow, the cold circulation effect is ensured, and the utilized air is added into the air compressor 2 again, so that the energy loss of the air compressor 2 is reduced; the power assembly 37 includes a sealing cavity 371, a stator turbine 372, a rotor turbine 373 and a fan 377, wherein the cross section of the sealing cavity 371 is trapezoidal, so that the hot air flow can be converted by multiple times of energy, and the energy conversion rate of the power assembly 37 is improved; the stator turbine 372 is fixedly arranged on the inclined side of the trapezoid, the rotating shaft 374 is fixedly arranged on the bottom side of the trapezoid, the fan 377 is fixedly arranged at one end of the rotating shaft 374, the rotor turbine 373 is fixedly arranged on the rotating shaft 374, hot air flows enter the power assembly 37 through the return pipe 35, and under the diversion effect of the stator turbine 372, the rotor turbine 373 rotates rapidly, so that the cold circulation mechanism 3 releases cold air flow rapidly.
As shown in fig. 7, the side annular array of the stator turbine 372 is fixedly provided with a "hook" shaped guide vane 375, the "hook" shaped guide vane 375 is used for guiding the direction of restricting the hot air flow, the side annular array of the rotor turbine 373 is fixedly provided with a streamline shaped rotating vane 376, the streamline shaped rotating vane 376 can rotate rapidly under the driving of the hot air flow, thereby achieving the purpose of energy conversion, the stator turbine 372 and the rotor turbine 373 are sequentially arranged, the cold circulation mechanism 3 can perform multi-stage energy conversion on the hot air flow, the distance value between the rotating vanes 376 is sequentially increased along the direction of the rotating shaft 374 towards the air outlet pipe 38, and the cold circulation mechanism 3 can improve the energy conversion efficiency.
As shown in fig. 8, the guide vane 375 is twisted, so that the angular velocity of the hot air flow passing through the rotating vane 376 is again increased, and the angle of attack of the guide vane 375 near the air outlet pipe is increased, so that the energy of the hot air flow can be utilized and converted as much as possible, and the high-pressure hot air flow can be cooled and depressurized through the cooling circulation mechanism 3 and drives the rotating shaft 374 to rotate.
During operation, the hot gas stream at high temperature and pressure passes through the stator turbine 372, where the flow area decreases along the turning vanes 376, and the stator turbine 372 increases the flow rate of the hot gas stream, similar to the nozzle principle, because of conservation of total energy, the pressure and temperature of the hot gas stream decreases, where the following rotor turbine 373 begins to operate to reach the next set of rotor turbines 373 at an optimal angle of attack, and the twist angle of the following stator turbine 372 is large, so that all the guide vane 375 cross-sections maintain the optimal angle of attack.
In the working process of the invention, after the container body 1 is filled with goods to be carried, the container body 1 is placed on a marine vessel, the air compressor 2 is started to input compressed air into the unidirectional flow guide block 32 through the air inlet pipe 31, the unidirectional flow guide block 32 continuously expands and accelerates the passing air flow, after the air enters the hot air pipe 33, the high-speed air flow can generate vortex to separate cold and hot air flows which rotate, and the hot air flow can enter the return pipe 35 through the flow dividing block 331 to be used as an energy source of the power assembly 37 to enable the power assembly 37 to rotate; the cold air flow is driven by the power component 37 through the cold air pipe 34 to quickly cool the interior of the container body 1; the compressed air is limited by the sealing block 321 to move only to one side of the hot air pipe 33, a certain angular velocity is obtained under the guiding action of the spiral guiding groove 322, and a larger angular velocity is obtained through the gap between the limiting blocks, so that the difference value of the angular velocities of the vortex of the inner ring and the outer ring is larger and larger in the process, and cold air flow with lower internal angular velocity and hot air flow with higher peripheral angular velocity are formed; the compressed air is gradually expanded and accelerated by the unidirectional guide block 32. Once in the hot air duct 33, the high velocity air flow is split into two cold and hot streams, creating a swirling air flow. After entering the unidirectional flow block 32, the gas will form a free vortex. It is worth noting here that the rotational speed of the free vortex depends on its distance from the central position, the further the distance the faster the rotational speed. Due to the difference in rotational speed between the vortices, friction is generated between them, which results in a decrease in the energy of the central vortex, while the kinetic and thermal energy of the outer vortices increases, thus lowering the temperature; the high temperature and high pressure hot gas flow passes through the stator turbine 372, where the flow area decreases along the turning vanes 376, and the stator turbine 372 increases the flow rate of the hot gas flow, because of the conservation of total energy, the pressure and temperature of the hot gas flow decreases, where the following rotor turbine 373 begins to operate to the next set of rotor turbines 373 at an optimal angle of attack, and the twist angle of the following stator turbine 372 is large so that all the guide vane 375 cross-sections maintain the optimal angle of attack.
Although one or more exemplary embodiments of the present disclosure have been described with reference to the accompanying drawings, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the following claims.
Claims (10)
1. The utility model provides a cold air circulation device of on-board refrigerated container, includes container body (1) and air compressor (2), the internally mounted of container body (1) has air compressor (2), a serial communication port, still includes cold circulation mechanism (3), cold circulation mechanism (3) carries out vortex drainage to compressed gas through one-way water conservancy diversion piece (32), forms the two vortex of inner and outer lane reverse pivoted, and the motion makes inner and outer lane vortex constantly rub in hot air pipe (33), leads to inner and outer lane vortex temperature difference and angular velocity difference to be greater and greater, forms cold and hot two air current, and hot air current is discharged power component (37) as the energy source through overflow hole (332), and cold air current passes through fan (377) and goes out the inside realization cold air circulation of tuber pipe (38) discharge into container body (1).
2. The cold air circulating apparatus of a ship-borne refrigerated container according to claim 1, wherein: the cold circulation mechanism (3) further comprises an air inlet pipe (31), a hot air pipe (33), a cold air pipe (34), a return pipe (35) and a circulation pipe (36), one end of the air inlet pipe (31) is fixedly arranged on an air outlet of the air compressor (2), the unidirectional flow guide block (32) is fixedly arranged below the air inlet pipe (31), the hot air pipe (33) and the cold air pipe (34) are fixedly arranged on two sides of the unidirectional flow guide block (32), one end of the circulation pipe (36) is fixedly arranged on the side face of the hot air pipe (33), the other end of the circulation pipe (36) is fixedly arranged on one side of the power assembly (37), one end of the return pipe (35) is fixedly arranged on the side face of the power assembly (37), the other end of the return pipe (35) is fixedly arranged at 1/5 of the hot air pipe (33), the pipe diameter of the return pipe (35) is smaller than that of the hot air pipe (33), the air outlet pipe (38) is fixedly arranged on one side of the power assembly (37), the hot air pipe (33), the cold air pipe (34), the return pipe (35) and the air outlet pipe (38) are fixedly arranged on one side of the power assembly (37), and the air outlet pipe (35) forms a circulation mechanism in a shape through the shape and the shape of the air return pipe and the circulation mechanism.
3. A cold air circulation device for a ship-borne refrigerated container according to claim 2, wherein: the cross section shape of the unidirectional flow guide block (32) is in a shape of a Chinese character 'tu', the lower part of the Chinese character 'tu' is a sealing block (321), a spiral guide groove (322) is formed in one side of the sealing block (321), and the spiral guide groove (322) is used for enabling the expansion acceleration air of the cold circulation mechanism (3) to form a vortex rotating at a high speed.
4. A cold air circulation device for a ship-borne refrigerated container according to claim 3, wherein: the side annular array of sealing block (321) is fixedly provided with crescent current limiting block (323), crescent is inclined relative to sealing block (321), and therefore the cold circulation mechanism (3) carries out vortex separation on the inner part and the outer part of air flow.
5. A cold air circulation device for a ship-borne refrigerated container according to claim 2, wherein: the inside fixed mounting of hot air pipe (33) has bullet head shape reposition of redundant personnel piece (331), and overflow aperture (332) have been seted up to bullet head shape's side annular, the side joint of reposition of redundant personnel piece (331) has sealed rubber ring (333), and cold circulation mechanism (3) intercept the less air current of inner circle energy through bullet head shape.
6. A cold air circulation device for a ship-borne refrigerated container according to claim 2, wherein: a convergent nozzle (341) and a rectangular transition cavity (342) are formed in the cold air pipe (34), cold air flows through the transition cavity (342) and then moves outwards from the nozzle (341), and the convergent nozzle (341) enables the cold circulation mechanism (3) to reversely pass through accumulated low-speed cold air flows.
7. A cold air circulation device for a ship-borne refrigerated container according to claim 2, wherein: the power component (37) comprises a sealing cavity (371), a stator turbine (372), a rotor turbine (373) and a fan (377), wherein the cross section of the sealing cavity (371) is trapezoid, the stator turbine (372) is fixedly installed on a trapezoid inclined edge, a rotating shaft (374) is fixedly installed on the trapezoid bottom edge, the fan (377) is fixedly installed at one end of the rotating shaft (374), the rotor turbine (373) is fixedly installed on the rotating shaft (374), the stator turbine (372) and the rotor turbine (373) are sequentially arranged in multiple stages, hot air flows enter the power component (37) through a backflow pipe (35) under the flow guiding effect of the stator turbine (372), and the rotor turbine (373) rotates fast to enable a cold circulation mechanism (3) to release cold air flow fast.
8. The cold air circulating apparatus of a ship-borne refrigerated container according to claim 7, wherein: the side annular array of the stator turbine (372) is fixedly provided with a hook-shaped guide blade (375), and the side annular array of the rotor turbine (373) is fixedly provided with a streamline-shaped rotating blade (376), so that the cold circulation mechanism (3) can perform multistage energy conversion on hot air flow.
9. The cold air circulating apparatus of a ship-borne refrigerated container as set forth in claim 8, wherein: the distance value between the rotating blades (376) is sequentially increased along the direction of the rotating shaft (374) to the air outlet pipe (38), so that the energy conversion efficiency of the cold circulation mechanism (3) can be improved.
10. The cold air circulating apparatus of a ship-borne refrigerated container as set forth in claim 8, wherein: the guide blades (375) are arranged in a twisted shape, and the angle of attack value of the guide blades (375) close to one side of the air outlet pipe is large, so that the high-pressure hot air flow can be cooled and depressurized through the cold circulation mechanism (3) and drives the rotating shaft (374) to rotate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311254259.4A CN116986157B (en) | 2023-09-27 | 2023-09-27 | Cold air circulation device for ship-borne refrigerated container |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311254259.4A CN116986157B (en) | 2023-09-27 | 2023-09-27 | Cold air circulation device for ship-borne refrigerated container |
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| CN116986157A true CN116986157A (en) | 2023-11-03 |
| CN116986157B CN116986157B (en) | 2023-12-15 |
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| CN1675508A (en) * | 2002-08-13 | 2005-09-28 | Bsh博施及西门子家用器具有限公司 | Heat exchanger-turbine assembly |
| CN110406824A (en) * | 2019-07-15 | 2019-11-05 | 芜湖暖江电气科技有限公司 | Double-channel gas vortex self-heating apparatus |
| CN110425667A (en) * | 2019-06-21 | 2019-11-08 | 浙江大学 | A kind of portable cold/hot Dual-purpose electric fan based on vortex tube |
| CN112378138A (en) * | 2020-10-19 | 2021-02-19 | 深圳朴坂科技有限公司 | Refrigerated container based on self-generating technology |
| CN213747369U (en) * | 2020-12-01 | 2021-07-20 | 安徽中科光电色选机械有限公司 | Sorting machine radiation source vortex cooling device |
| CN113188290A (en) * | 2021-05-11 | 2021-07-30 | 向本松 | Cold and hot dual-purpose integrated form container |
| CN116428758A (en) * | 2023-05-05 | 2023-07-14 | 哈尔滨工程大学 | Vortex tube variable-temperature Bernoulli injection backflow large-temperature-difference radiator |
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2023
- 2023-09-27 CN CN202311254259.4A patent/CN116986157B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1675508A (en) * | 2002-08-13 | 2005-09-28 | Bsh博施及西门子家用器具有限公司 | Heat exchanger-turbine assembly |
| CN110425667A (en) * | 2019-06-21 | 2019-11-08 | 浙江大学 | A kind of portable cold/hot Dual-purpose electric fan based on vortex tube |
| CN110406824A (en) * | 2019-07-15 | 2019-11-05 | 芜湖暖江电气科技有限公司 | Double-channel gas vortex self-heating apparatus |
| CN112378138A (en) * | 2020-10-19 | 2021-02-19 | 深圳朴坂科技有限公司 | Refrigerated container based on self-generating technology |
| CN213747369U (en) * | 2020-12-01 | 2021-07-20 | 安徽中科光电色选机械有限公司 | Sorting machine radiation source vortex cooling device |
| CN113188290A (en) * | 2021-05-11 | 2021-07-30 | 向本松 | Cold and hot dual-purpose integrated form container |
| CN116428758A (en) * | 2023-05-05 | 2023-07-14 | 哈尔滨工程大学 | Vortex tube variable-temperature Bernoulli injection backflow large-temperature-difference radiator |
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| CN116986157B (en) | 2023-12-15 |
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