CN114061236B - Refrigerated vehicle epidemic prevention system and method utilizing heat of engine exhaust manifold - Google Patents
Refrigerated vehicle epidemic prevention system and method utilizing heat of engine exhaust manifold Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000000249 desinfective effect Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
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- 238000012360 testing method Methods 0.000 claims description 2
- 241000711573 Coronaviridae Species 0.000 abstract description 7
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- 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
- F25D17/042—Air treating means within refrigerated spaces
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
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- 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
- B60H3/00—Other air-treating devices
- B60H3/0085—Smell or pollution preventing arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
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- 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
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- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Atmospheric Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
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Abstract
The application discloses a refrigerated vehicle epidemic prevention system and method utilizing heat of an engine exhaust manifold, wherein in the system, a heating and sterilizing area is arranged outside the engine exhaust manifold, and two ends of the heating and sterilizing area are respectively provided with an air inlet and an air outlet; the air inlet conveying pipe is communicated with the air inlet, and the tail end of the air inlet conveying pipe is connected with a pre-detection device; a first branch of the pre-detection device is communicated with a refrigerating area of the refrigerator car, a second branch of the pre-detection device is connected with an air return channel, the air return channel is arranged in a cargo area of the refrigerator car, and a centrifugal fan is installed at the port of the air return channel; the double detection device is connected with the air outlet through an exhaust conveying pipe, a first branch of the double detection device is directly led to an air inlet conveying pipe connected with the air inlet, and a one-way valve is arranged inside the branch; and the second branch of the secondary detection device passes through the cooling auxiliary device and then leads to an evaporator of a refrigerating system of the refrigerator car. The system can effectively kill new coronavirus in the refrigerator car, thereby realizing prevention and control of epidemic situation in cold chain transportation.
Description
Technical Field
The application relates to the field of machinery manufacturing and automation thereof, in particular to a refrigerated vehicle epidemic prevention system and method utilizing heat of an engine exhaust manifold, which are applicable to all types of refrigerated vehicles to carry out virus killing and epidemic prevention on air in a cargo area.
Background
The recent new crown pneumonia is abused in many countries around the world, has great and profound influence on each country, and has great impact on the aspects of economy, education, medical treatment, civilian life and the like of China and even the global society.
Wherein, the cold chain logistics industry at home and abroad impacts the new coronary pneumonia epidemic situation strongly, and the products in the low-temperature storage and transportation process are found out that the nucleic acid detection is positive frequently. Mainly because the new coronavirus is not high temperature resistant but low temperature resistant, researches show that the coronavirus can be killed by heating at 56 ℃ for 30 minutes, but the coronavirus can survive and propagate under the low temperature condition and hardly be affected. Therefore, an epidemic prevention system is required to be added to ensure that the products transported by the cold chain are prevented from being infected by virus.
According to investigation and research, most of the measures for dealing with the epidemic situation of cold-chain logistics at home and abroad are to manually spray the goods with medical alcohol, hydrogen persulfate compound and other disinfectants before transportation, but the method only protects the goods to a certain extent and does not fundamentally kill viruses. The unloading workers and the cargo have the potential to become infected with the virus as long as the virus remains in the cargo area.
Disclosure of Invention
The application aims to provide a refrigerator car epidemic prevention system and method utilizing heat of an engine exhaust manifold, and the system and method can kill new coronavirus possibly hidden in a cargo area at high temperature, so that epidemic situation can be prevented and controlled.
In order to realize the task, the following technical scheme is adopted in the application:
the utility model provides an utilize thermal refrigerator car epidemic prevention system of engine exhaust manifold, includes engine exhaust manifold, heating disinfection district, inlet duct, preliminary testing device, centrifugal fan, retest device and cooling auxiliary device, wherein:
the heating and poisoning area is arranged outside an engine exhaust manifold, and an air inlet and an air outlet are respectively formed in two ends of the heating and poisoning area; the air inlet conveying pipe is communicated with the air inlet, and the tail end of the air inlet conveying pipe is connected with a pre-detection device; a first branch of the pre-detection device is communicated with a refrigerating area of the refrigerator car, a second branch of the pre-detection device is connected with an air return channel, the air return channel is arranged in a cargo area of the refrigerator car, and a centrifugal fan is installed at the port of the air return channel; the compound detection device is connected with the air outlet through an exhaust conveying pipe, a first branch of the compound detection device directly leads to an air inlet conveying pipe connected with the air inlet, and a one-way valve is arranged inside the branch; and a second branch of the secondary detection device passes through the cooling auxiliary device and then leads to an evaporator of a refrigerating system of the refrigerator car.
Furthermore, the heating and sterilizing area is a closed space, and the inner wall of the heating and sterilizing area is a heat insulating material; the heating time of the air in the heating and poisoning area by an engine exhaust manifold is set to be at least 2 min;
and a turbulence mechanism is arranged on one side of the engine exhaust manifold and positioned in the heating and sterilizing area and is used for enabling air to be concentrated near the high-temperature part of the engine exhaust manifold.
Furthermore, the air inlet is arranged at the high position of the heating and poisoning area, and the air outlet is arranged at the low position; the air inlet, the air outlet and the exhaust manifold are internally provided with temperature sensors for monitoring the corresponding temperatures in real time.
Further, an air flow regulator capable of changing the rotating speed and the steering direction is arranged in the air inlet conveying pipe; when the air flow is large and exceeds a preset value, the steering is changed, and the original air suction direction is reversed, so that the aim of controlling the air flow is fulfilled.
Furthermore, axial flow fans are arranged in the air inlet conveying pipe, the air outlet conveying pipe and the first branch and the second branch of the compound detection device.
Further, after air in the goods area of the refrigerator car enters the air return duct under the action of the centrifugal fan, the air enters the pre-detection device through a second branch of the pre-detection device, and the pre-detection device is used for detecting whether the air contains new coronavirus; when viruses are detected, an electromagnetic switching valve in the pre-detection device is adjusted to enable air to enter the air inlet conveying pipe; if no virus is detected, the electromagnetic switching valve is adjusted so that air is delivered along its first branch into the refrigeration compartment of the refrigerated vehicle.
Further, after entering the air inlet conveying pipe, air with viruses passes through the vicinity of the condenser to be preheated under the action of the axial flow fan, and then enters the heating and sterilizing area from the air inlet to be sterilized; and finally, discharging the air from an air outlet below the heating and sterilizing area, and entering the interior of the re-detection device through an exhaust conveying pipe.
Further, the double detection device detects the heated and sterilized air, and if the heated and sterilized effect is detected to be not up to the standard, the electromagnetic switching valve inside the double detection device is adjusted to enable the air to return to the air inlet conveying pipe connected with the air inlet again under the driving of the internal axial flow fan along the first branch of the double detection device; a one-way valve is arranged in the first branch; and the qualified air is detected by the secondary detection device, enters the cooling auxiliary device from the second branch of the secondary detection device for pre-cooling under the adjustment of an electromagnetic switching valve inside the secondary detection device, and is introduced into an evaporator of the refrigeration system through the axial flow fan after being cooled and pre-cooled.
Furthermore, an air flow sensor is installed in the air return duct, so that the average air flow in the air return duct can be monitored in real time, and the monitoring result can be fed back to the control system in real time, so that the monitoring result can be used as a reference standard for regulating the rotating speed of the centrifugal fan.
An epidemic prevention method for a refrigerator car by using heat of an engine comprises the following steps:
step 1, an operator turns on a switch of an epidemic prevention system on a human-computer interaction interface, and the epidemic prevention system starts to enter a working state;
step 2, air in the cargo area enters the pre-detection device through the air return duct under the action of the centrifugal fan; if no virus is detected in the air, the part of the air returns to the refrigerating area through the first branch by adjusting an electromagnetic switching valve in the pre-detection device; when viruses are detected, enabling the part of air to enter an air inlet conveying pipe connected with an air inlet through a second branch, and preheating by using a super-condenser in the period;
step 3, after air enters the heating and disinfecting area from the air inlet, the air is heated and disinfected under the high-temperature action of an engine exhaust manifold, and the turbulence mechanism plays a role in promoting heating;
step 4, after the air is heated and sterilized, the air enters an exhaust conveying pipe through an air outlet below the heating and sterilizing area and then reaches a re-detection device; if the detection result is unqualified, the electromagnetic switching valve inside the device is adjusted to enable the air to return to the air inlet conveying pipe along the first branch of the double detection device; if the detection result is qualified, the air enters the auxiliary cooling device from the second branch of the double detection device to be pre-cooled and then reaches the position near the evaporator, and the air is cooled under the low-temperature action of the evaporator and then enters the cargo area again.
Compared with the prior art, the method has the following technical characteristics:
1. when the turbulence mechanism arranged near the engine exhaust manifold in the heating and sterilizing area works, more air is promoted to be concentrated at the high-temperature part of the exhaust manifold, and the heat exchange efficiency is improved.
2. Air in the cargo area enters the pre-detection device through the air return duct, and when no virus is detected, the air enters the refrigeration area along the branch; when the presence of virus is detected, this portion of air will enter the heated sterilization zone along the other branch.
3. The air is preheated near the condenser before entering the heating and sterilizing area, so that the heating and sterilizing efficiency is greatly improved, and the air is pre-cooled by the cooling auxiliary device before entering the evaporator, so that the cooling efficiency is greatly improved.
4. After the air is heated and sterilized, the air enters the re-detection device along the air-removing conveying mechanism, and the air which is detected to be unqualified is sent back to the air inlet conveying pipe connected with the air inlet again to be heated and sterilized again.
5. This application simple structure, convenient operation, no thermal damage to the goods are applicable to the refrigerator car and carry out daily prevention and control epidemic situation required.
Drawings
FIG. 1 is a schematic diagram of the present system;
fig. 2 is a flow chart of the operation of the present system.
The reference numbers in the figures illustrate: the system comprises an engine exhaust manifold 1, a heating and poisoning area 2, a flow disturbing mechanism 3, an air inlet 4, an air outlet 5, an air inlet conveying pipe 61, an air outlet conveying pipe 62, an axial flow fan 7, a pre-detection device 8, an air return duct 9, a centrifugal fan 10, a re-detection device 11, a check valve 12, a cooling auxiliary device 13, a condenser 14 and an evaporator 15.
Detailed Description
The technical solutions in the examples of the present application will be described below in detail with reference to the accompanying drawings of the examples of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application.
In order to fundamentally solve the epidemic prevention problem of the refrigerated vehicle, the air in the goods area needs to be thoroughly heated, the goods cannot be thermally damaged while viruses are killed as much as possible, and a circulating system for heating the air needs to be additionally arranged on the basis of a refrigerating system of the refrigerated vehicle.
Referring to fig. 1 and 2, the present application provides a refrigerated vehicle epidemic prevention system using heat of an engine exhaust manifold 1, which mainly comprises the engine exhaust manifold 1, a heating disinfection area 2, a turbulent flow mechanism 3, an air inlet delivery pipe 61, an axial flow fan 7, a pre-detection device 8, a centrifugal fan 10, a re-detection device 11, a check valve 12, a cooling auxiliary device 13, and the like, wherein:
the heating and poisoning area 2 is arranged outside the engine exhaust manifold 1, and an air inlet 4 and an air outlet 5 are respectively arranged at two ends of the heating and poisoning area 2; the turbulence mechanism 3 is arranged on one side of the engine exhaust manifold 1 and is positioned in the heating and poisoning area 2; the air inlet conveying pipe 61 is communicated with the air inlet 4, and the tail end of the air inlet conveying pipe 61 is connected with a pre-detection device 8; a first branch of the pre-detection device 8 is communicated with a refrigerating area of the refrigerator car, a second branch of the pre-detection device 8 is connected with an air return duct 9, the air return duct 9 is arranged in a cargo area of the refrigerator car, and a centrifugal fan 10 is arranged at the port of the air return duct 9; the compound detection device 11 is connected with the air outlet 5 through an exhaust conveying pipe 62, a first branch of the compound detection device 11 is directly led to an air inlet conveying pipe 61 connected with the air inlet 4, and a one-way valve 12 is arranged inside the branch; the second branch of the double detection device 11 passes through the auxiliary cooling device 13 and then leads to the evaporator 15 of the refrigeration system of the refrigerator car.
Referring to fig. 1, in the present embodiment, air enters the heating and sterilizing region 2 from the air inlet 4 and is discharged from the air outlet 5. The heating and sterilizing region 2 is a closed space, and the inner wall of the heating and sterilizing region is made of heat insulating materials, so that heat in the heating and sterilizing region 2 is less exchanged with the outside, and the engine exhaust manifold 1 is surrounded by the heating and sterilizing region 2. The engine exhaust manifold 1 is a branched pipe connected to an engine block and configured to collectively introduce exhaust gas from each cylinder into an exhaust manifold. The temperature of the engine exhaust manifold 1 is as high as 700 ℃ to 800 ℃ under the condition of normal work, the new corolla pneumovirus can be completely killed by heating for 30min at 56 ℃, and experiments confirm that the heating time of the planned air in the heating and sterilizing area 2 by the engine exhaust manifold 1 is set to be at least 2 min. Temperature sensors are arranged in the air inlet 4, the air outlet 5 and the exhaust manifold 1, corresponding temperatures of the temperature sensors are monitored in real time, and the temperatures of the three can be displayed on a human-computer interaction interface in real time.
Optionally, the air inlet 4 is arranged at a high position of the heating and sterilizing area 2, the air outlet 5 is arranged at a low position, according to the principle of expansion caused by heat and contraction caused by cold of air, hot air can rise and cold air can sink, and convection is formed between the hot air and the cold air, so that the heating and sterilizing efficiency is greatly improved; during this period, the spoiler 3 near the exhaust manifold 1 can function to concentrate air more on a high-temperature portion of the engine exhaust manifold 1.
As shown in fig. 1, the pre-detection device 8 is used for detecting viruses in the air, and when no virus is detected in the air, the air returns to the refrigeration area along the first branch; if a virus is detected, this portion of air will enter the inlet duct 61 along its second branch.
And axial flow fans 7 are arranged in the air inlet conveying pipe 61, the air outlet conveying pipe 62 and the first branch and the second branch of the compound detection device 11. The air inlet conveying pipe 61 is provided with an arc-shaped adapter for conveying, so that the axial flow fan 7 is arranged in the air inlet conveying pipe 61 to increase the air flow power, so that the air flow power can rapidly enter the heating and sterilizing area 2. The air inlet conveying pipe 61 is arranged near the condenser 14 of the refrigerating system of the refrigerator car, and a large amount of heat can be emitted by the condenser 14 when the refrigerating system works, so that the air can absorb the heat emitted by the condenser 14 in the process of passing through the air inlet conveying pipe 61 to preheat, and the heating efficiency is improved.
After air in the goods area of the refrigerator car enters the air return duct 9 under the action of the centrifugal fan 10, the air passes through a second branch of the pre-detection device 8 and enters the pre-detection device 8, and the pre-detection device 8 is used for detecting whether the air contains new coronavirus; when viruses are detected, an electromagnetic switching valve in the pre-detection device 8 is adjusted to enable air to enter the air inlet conveying pipe 61; if no virus is detected, the electromagnetic switching valve is adjusted so that air is delivered along its first branch into the refrigeration compartment of the refrigerated vehicle.
After entering the air inlet duct 61, the air with virus will pass through the vicinity of the condenser 14 under the action of the axial flow fan 7, and since the condenser 14 will release a large amount of heat during the operation of the refrigeration system, the air will be preheated and then enter the heating and sterilizing region 2 from the air inlet 4. The heating and sterilizing area 2 is internally wrapped with an engine exhaust manifold 1, the temperature of the heating and sterilizing area 2 is up to 700-800 ℃ during normal work, and air entering from an air inlet 4 above the heating and sterilizing area 2 is heated to kill viruses in the air; finally, the air is discharged from the air outlet 5 below the heating and sterilizing area 2, and enters the interior of the double detection device 11 through the exhaust duct 62.
The double detection device 11 detects the heated and sterilized air, and if the heated and sterilized effect is detected to be not up to the standard, the electromagnetic switching valve inside the double detection device 11 is adjusted to enable the air to return to the air inlet conveying pipe 61 connected with the air inlet 4 again under the driving of the internal axial flow fan 7 along the first branch of the double detection device 11; a check valve 12 is arranged in the first branch to ensure that the air can not return to the repeated detection device 11 again, so that the detection efficiency is prevented from being influenced; qualified air is detected by the secondary detection device 11, enters the cooling auxiliary device 13 from the second branch of the secondary detection device 11 under the adjustment of the electromagnetic switching valve inside the secondary detection device for pre-cooling, is introduced into the evaporator 15 of the refrigeration system through the axial flow fan 7 after being cooled and pre-cooled, and improves the cooling effect; because the evaporator 15 can release a large amount of cold energy when the refrigeration system works, the temperature of the air near the evaporator 15 can be rapidly reduced, thereby ensuring that the temperature of the air entering the goods area meets the requirements of refrigeration and fresh keeping, and causing no thermal damage to the goods. The detection result of the double detection device 11 is also displayed on the man-machine interaction interface in the cab in real time.
In one embodiment, the cooling aid 13 is a large water tank; because water has a larger specific heat capacity, it absorbs more heat than most substances by raising the same temperature, and it mainly acts as a pre-cooling effect for the air in the mechanism, providing a relatively lower temperature for the subsequent final cooling, thereby increasing the cooling efficiency. The exhaust duct 62 has a larger diameter than the intake duct 61 because the volume of the air increases after it is heated.
In an embodiment of the present application, an air flow sensor is installed in the return duct 9, and can monitor the average air flow in the return duct 9 in real time, and the monitoring result is fed back to the control system in real time, so as to be used as a reference standard for adjusting the rotation speed of the centrifugal fan 10. When the air flow sensor of the return duct 9 detects that the air flow is too low, the control system will increase the rotational speed of the centrifugal fan 10, and conversely will decrease the rotational speed of the centrifugal fan 10. The information such as the air flow at the air return duct 9, the rotating speed of the centrifugal fan 10 and the like can be displayed in real time on a man-machine interaction interface of the cab for operators to refer to.
The turbulence mechanism 3, the axial flow fans 7, the pre-detection device 8, the centrifugal fan 10, the re-detection device 11, the sensors and the like in the scheme are all connected to a control system, and control and information feedback are carried out on the human-computer interaction interface.
On the basis of the technical scheme, the application also provides a refrigerated vehicle epidemic prevention method by using the heat of the engine, which comprises the following steps:
step 1, an operator turns on a switch of the epidemic prevention system on a human-computer interaction interface, and the epidemic prevention system starts to enter a working state.
Step 2, air in the cargo area enters a pre-detection device 8 through an air return duct 9 under the action of a centrifugal fan 10; if no virus is detected in the air, the part of the air returns to the refrigerating area through the first branch by adjusting an electromagnetic switching valve inside the pre-detection device 8; when a virus is detected, this portion of the air is caused to pass through the second branch into the intake air duct 61 connected to the intake vent 4, during which it is preheated by means of the condenser 14.
And 3, after the air enters the heating and sterilizing area 2 from the air inlet 4, the air is heated and sterilized under the high-temperature action of the exhaust manifold 1 of the engine, and the turbulence mechanism 3 plays a role in promoting heating.
Step 4, after the air is heated and sterilized, the air enters the exhaust conveying pipe 62 through the air outlet 5 below the heating and sterilizing area 2 and then reaches the re-detection device 11; if the detection result is not qualified, the internal electromagnetic switching valve is adjusted to make the air return to the air inlet conveying pipe 61 along the first branch of the double detection device 11; if the detection result is qualified, the air enters the auxiliary cooling device 13 from the second branch of the double detection device 11 for pre-cooling and then reaches the vicinity of the evaporator 15, and the air is cooled by the low-temperature effect of the evaporator 15 and then enters the cargo area again.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. The utility model provides an utilize thermal refrigerator car epidemic prevention system of engine exhaust manifold, its characterized in that, includes engine exhaust manifold (1), heating virus killing district (2), inlet duct (61), preliminary testing device (8), centrifugal fan (10), retest device (11) and cooling auxiliary device (13), wherein:
the heating and poisoning area (2) is arranged outside the engine exhaust manifold (1), and an air inlet (4) and an air outlet (5) are respectively arranged at two ends of the heating and poisoning area (2); the air inlet conveying pipe (61) is communicated with the air inlet (4), and the tail end of the air inlet conveying pipe (61) is connected with a pre-detection device (8); a first branch of the pre-detection device (8) is communicated with a refrigerating area of the refrigerator car, a second branch of the pre-detection device (8) is connected with an air return duct (9), the air return duct (9) is arranged in a goods area of the refrigerator car, and a centrifugal fan (10) is installed at the port of the air return duct (9); the compound detection device (11) is connected with the air outlet (5) through an exhaust conveying pipe (62), a first branch of the compound detection device (11) is directly led to an air inlet conveying pipe (61) connected with the air inlet (4), and a one-way valve (12) is arranged inside the branch; the second branch of the double detection device (11) passes through the auxiliary cooling device (13) and then leads to an evaporator (15) of a refrigerating system of the refrigerator car.
2. A refrigerator car epidemic prevention system using engine exhaust manifold heat according to claim 1, wherein the heating and sterilizing section (2) is a closed space whose inner wall is a heat insulating material; the heating time of the air in the heating and sterilizing area (2) by an engine exhaust manifold (1) is set to be at least 2 min;
a turbulent flow mechanism (3) is arranged on one side of the engine exhaust manifold (1) and in the heating and poisoning area (2) and used for enabling air to be concentrated near the high-temperature part of the engine exhaust manifold (1).
3. A refrigerated vehicle epidemic prevention system using engine exhaust manifold heat according to claim 1, characterized in that the air inlet (4) is disposed at a high position of the heating and poisoning area (2) and the air outlet (5) is disposed at a low position; temperature sensors are arranged in the air inlet (4), the air outlet (5) and the engine exhaust manifold (1) to monitor the corresponding temperatures in real time.
4. A refrigerated vehicle epidemic prevention system using engine exhaust manifold heat according to claim 1 wherein an air flow regulator capable of changing the rotation speed and the direction of rotation is provided in the intake duct (61); when the air flow is large and exceeds a preset value, the steering is changed, and the original air suction direction is reversed, so that the aim of controlling the air flow is fulfilled.
5. A refrigerated vehicle epidemic prevention system using engine exhaust manifold heat according to claim 1 wherein the axial flow fan (7) is disposed in each of the first branch and the second branch of the intake duct (61), the exhaust duct (62), and the double detection device (11).
6. A refrigerated vehicle epidemic prevention system using engine exhaust manifold heat according to claim 1, characterized in that air in the cargo area of the refrigerated vehicle enters the pre-detection device (8) through the second branch of the pre-detection device (8) after entering the return air duct (9) under the action of the centrifugal fan (10), and the pre-detection device (8) is used for detecting whether the air contains new crown virus; when viruses are detected, an electromagnetic switching valve in the pre-detection device (8) is adjusted to enable air to enter the air inlet conveying pipe (61); if no virus is detected, the electromagnetic switching valve is adjusted so that air is delivered along its first branch into the refrigeration compartment of the refrigerated vehicle.
7. A refrigerated vehicle epidemic prevention system using engine exhaust manifold heat according to claim 1, wherein after entering the air intake duct (61), the air with virus is preheated by the axial flow fan (7) through the vicinity of the condenser (14), and then enters the heating and disinfecting area (2) from the air inlet (4) for virus killing; and finally, the air is discharged from an air outlet (5) below the heating and sterilizing area (2) and enters the interior of the re-detection device (11) through an exhaust conveying pipe (62).
8. A refrigerated vehicle epidemic prevention system using engine exhaust manifold heat according to claim 1, wherein the double detection device (11) detects the air after being heated and sterilized, and if it is detected that the heating and sterilizing effects do not reach the standard, the electromagnetic switching valve inside the double detection device is adjusted to make the air flow return to the air inlet duct (61) connected to the air inlet (4) again under the driving of the axial flow fan (7) along the first branch of the double detection device (11); a one-way valve (12) is arranged in the first branch; and qualified air is detected by the secondary detection device (11), enters the cooling auxiliary device (13) from the second branch of the secondary detection device (11) under the adjustment of an electromagnetic switching valve inside the secondary detection device for pre-cooling, and is introduced into an evaporator (15) of the refrigeration system through the axial flow fan (7) after being subjected to cooling and pre-cooling.
9. A refrigerated vehicle epidemic prevention system using engine exhaust manifold heat according to claim 1, characterized in that an air flow sensor is installed in the return duct (9), the average air flow in the return duct (9) can be monitored in real time, and the monitoring result can be fed back to the control system in real time, so as to be used as a reference standard for the rotation speed adjustment of the centrifugal fan (10).
10. A refrigerated vehicle epidemic prevention method utilizing engine heat is characterized by comprising the following steps:
step 1, an operator turns on a switch of an epidemic prevention system on a human-computer interaction interface, and the epidemic prevention system starts to enter a working state;
step 2, air in the cargo area enters a pre-detection device (8) through an air return duct (9) under the action of a centrifugal fan (10); if no virus is detected in the air, the air is returned to the refrigerating area through the first branch by adjusting an electromagnetic switching valve inside the pre-detection device (8); when viruses are detected, the air is partially led into an air inlet conveying pipe (61) connected with the air inlet (4) through a second branch, and the air is preheated by a condenser (14);
step 3, after air enters the heating and disinfecting area (2) from the air inlet (4), the air is heated and disinfected under the high-temperature action of the engine exhaust manifold (1), and the turbulence mechanism (3) plays a role in promoting heating;
step 4, after the air is heated and sterilized, the air enters an exhaust conveying pipe (62) through an air outlet (5) below the heating and sterilizing area (2) and then reaches a re-detection device (11); if the detection result is not qualified, the internal electromagnetic switching valve is adjusted, and the air returns to the air inlet conveying pipe (61) along the first branch of the double detection device (11); if the detection result is qualified, the air enters the auxiliary cooling device (13) from the second branch of the double detection device (11) for pre-cooling and then reaches the vicinity of the evaporator (15), and the air is cooled under the low-temperature action of the evaporator (15) and then enters the cargo area again.
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