CN113815516A

CN113815516A - Temperature control method and temperature control system of aquatic product cold chain transport vehicle

Info

Publication number: CN113815516A
Application number: CN202111003856.0A
Authority: CN
Inventors: 郑心宇; 陈帅; 陈大照; 林锋; 陈烁
Original assignee: Fujian Dachangsheng Feed Co Ltd
Current assignee: Fujian Dachangsheng Feed Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2021-12-21

Abstract

The invention relates to the technical field of aquatic product transportation, and particularly discloses a temperature control method and a temperature control system of an aquatic product cold chain transport vehicle; the temperature control carriage is fixedly arranged on the transport vehicle body, a split double-opening carriage door is arranged on the right end face of the temperature control carriage, a central control processor is arranged on the inner wall of the temperature control carriage, and a storage box refrigerating system and an in-carriage air refrigerating system are arranged in the temperature control carriage; the temperature control system of the aquatic product cold chain transport vehicle disclosed by the invention monitors the temperatures in the temperature control carriage and the storage box respectively through the storage box refrigerating system and the two refrigerating systems of the carriage air refrigerating system and performs cooling control, has an excellent cold chain transport effect on the whole aquatic product, and can transport the aquatic product for a long time.

Description

Temperature control method and temperature control system of aquatic product cold chain transport vehicle

Technical Field

The invention relates to the technical field of aquatic product transportation, and particularly discloses a temperature control method and a temperature control system of an aquatic product cold chain transport vehicle.

Background

Currently, fishery in China is in the key period of strategic adjustment of industrial structures, the key point of adjustment is not simple increase and decrease of the quantity of aquatic products, but on the basis of supply guarantee, the industrial structure is comprehensively optimized, the product quality is improved, one of the most important aims is to improve the quality and the benefit of the aquatic products, solve the problem that high-quality aquatic products are relatively insufficient, and further improve the earning capacity of aquatic product exports, so the requirements on transportation and preservation of the aquatic products are higher and higher.

At present, in order to achieve fresh-keeping of aquatic products in China, cold chain cooling operation is often performed on the aquatic products. And present cold chain transport vechicle all is through putting the ice-cube in the carriage when carrying out fresh-keeping transportation to aquatic products to reach the cooling effect, then the cold chain transportation of aquatic products is not the temperature lower better more, and its refrigerated meat influences the taste, and current mode of realizing the cold chain transportation through the ice-cube can't be applicable to long-distance transport moreover.

The invention patent with application number 2012104572439 discloses an aquatic product transportation device, which comprises a box body, a controller, an oxygen generator, a refrigeration device, a sensor, an oxygen delivery pipe, a heat insulation layer and a shockproof layer, wherein the heat insulation layer is arranged on the outer surface of the box body, the shockproof layer is arranged outside the heat insulation layer, the refrigeration device comprises a refrigeration pipe and a temperature control element, a first cavity and a second cavity are arranged in the box body, the refrigeration pipe and the sensor are arranged in the first cavity, the oxygen delivery pipe is arranged in the second cavity, the controller is arranged outside the box body, the controller is connected with the oxygen generator, the refrigeration pipe and the sensor are connected to one end of the temperature control element, and the other end of the temperature control element is connected with the controller; although the aquatic product fresh-keeping effect can be achieved by reducing the temperature, the transportation device warns that the interior of the box body is insulated through the refrigeration pipe, the intelligent degree is not high, the aquatic product can only be refrigerated and frozen when being subjected to cold chain transportation, and the freshness of the aquatic product cannot be improved by completely frozen cold chain transportation, so that the fresh-keeping effect of the aquatic product when being subjected to cold chain transportation by using the aquatic product transportation device is not ideal. Therefore, aiming at the defects of the existing aquatic product transportation device, the design of the temperature control method and the temperature control system of the aquatic product cold chain transportation vehicle capable of effectively solving the technical problems is a technical problem to be solved.

Disclosure of Invention

The invention aims to overcome the defects of the conventional aquatic product transportation device, and designs a temperature control method and a temperature control system of an aquatic product cold chain transportation vehicle, which can effectively solve the technical problems.

The invention is realized by the following technical scheme:

a temperature control system of an aquatic product cold chain transport vehicle comprises a cold chain transport vehicle body and a temperature control carriage, wherein the temperature control carriage is fixedly arranged on the transport vehicle body, a double-opening carriage door which is opened in opposite directions is arranged on the right end face of the temperature control carriage, a central control processor is arranged on the inner wall of the temperature control carriage, and a storage box refrigerating system and an in-carriage air refrigerating system are arranged in the temperature control carriage;

wherein the indoor air refrigerating system comprises a row of crossbeams arranged at the upper end in the temperature control compartment and an air heat exchange box fixedly arranged on the crossbeams, the interior of the air heat exchange box is filled with phase change heat storage materials, the upper surface of the air heat exchange box is provided with a first temperature probe inserted into the interior of the air heat exchange box and contacted with the phase change heat storage materials, the upper surface of the air heat exchange box is also provided with a first semiconductor refrigerator, the first semiconductor refrigerator extends into the interior of the air heat exchange box and contacted with the phase change heat storage materials, the interior of the air heat exchange box is provided with a serpentine heat exchange tube arranged in a roundabout manner, the air inlet end of the serpentine heat exchange tube is connected with a circulating fan, the air inlet end of the circulating fan is connected with a tee joint tube, one end of the tee joint tube is provided with a first valve, and the other end of the tee joint tube extends out of the temperature control compartment, an air filter is fixedly mounted on the outer wall of the temperature control compartment, the end part of a three-way connecting pipe extending out of the temperature control compartment is connected with the air filter, a second valve is arranged between the air filter and the three-way connecting pipe, the air outlet end of the snakelike heat exchange pipe is connected with two symmetrically arranged air guide vertical pipes, the lower ends of the two air guide vertical pipes are connected with air outlet transverse pipes parallel to the bottom wall of the temperature control compartment, and a plurality of air outlets are arranged on the opposite surfaces of the two air outlet transverse pipes at intervals;

the storage box refrigerating system comprises two guide rails arranged on the left side wall and the right side wall of the lower end of a temperature control carriage, a lifting support plate is arranged between the two guide rails, the air outlet transverse pipe is arranged between the lifting support plate and the bottom wall of the temperature control carriage, a plurality of storage box placing grooves are formed in the lifting support plate in a rectangular array manner, two strip-shaped openings are formed in the bottom wall of each storage box placing groove, a large number of through holes are further formed in the lifting support plate, a second semiconductor refrigerator is arranged on the bottom wall of the temperature control carriage right below each storage box placing groove, two refrigerating rods on each second semiconductor refrigerator correspond to the two strip-shaped openings on the corresponding storage box placing groove, connecting blocks matched with the guide rails are connected to the left end and the right end of the lifting support plate, and a lifting device is arranged right below each connecting block, the top end of the lifting device is connected with the connecting block;

every be provided with the aquatic products bin in the storage tank standing groove, the aquatic products bin includes insulation box and insulation box lid, the insulation box lid passes through the hinge and rotates with insulation box upper end opening to be connected, be provided with on insulation box's the diapire with two refrigeration stick assorted embedded grooves, just the embedded groove is made by heat conduction metal material, the temperature probe socket has been seted up to insulation box's lateral surface, be connected with the second temperature probe that can insert in corresponding temperature probe socket through the wire on the control by temperature change carriage, still be provided with temperature sensor on the inner wall in control by temperature change carriage.

According to the scheme, the temperature control compartment and the double-opening compartment door are formed by compounding the inner side metal layer, the outer side metal layer and the middle foam heat insulation layer.

As the further setting of above-mentioned scheme, the crossbeam is the I-steel strip, and just one row of I-steel strip is 4~8, the inner wall welding of both ends and control by temperature change carriage is constituteed around the I-steel strip

As a further arrangement of the scheme, the wall of the air heat exchange box is also composed of metal layers on the inner side and the outer side and a foam heat insulation layer in the middle.

As a further configuration of the above scheme, the first valve and the second valve are equal solenoid valves and are electrically connected to the central control processor.

As a further arrangement of the scheme, the air filter comprises a filter shell body, and the filter shell body is sequentially provided with a filter screen layer, an activated carbon adsorption layer and an alcohol sterilization sponge layer from outside to inside.

As a further arrangement of the scheme, the lifting device is one of a direct current electric push rod or a hydraulic oil cylinder.

According to the scheme, the solar photovoltaic power generation device and the storage battery are arranged on the upper surface of the temperature control compartment.

As the further setting of above-mentioned scheme, solar photovoltaic power generation device includes the stand of fixed connection at four corners of control by temperature change carriage upper surface, four the top of stand is connected with the photovoltaic board support plate jointly, install a plurality of photovoltaic power generation boards on the photovoltaic board support plate, the battery sets up the control by temperature change carriage upper surface under the photovoltaic board support plate.

A temperature control method using the temperature control system comprises the following steps:

1) presetting critical values of the first probe, the second probe and the temperature sensor;

2) putting aquatic products into the aquatic product storage box, then putting the aquatic product storage box into each storage box placing groove on the lifting supporting plate, inserting a second temperature probe into the aquatic product storage box from the temperature probe socket, and then closing the compartment door;

3) detecting whether the temperature inside the temperature control compartment and the temperature inside the aquatic product storage box are higher than critical values or not through a temperature sensor, and automatically controlling a circulating fan to cool the air inside the temperature control compartment when the critical values of the temperature sensor are reached; when the critical value of the second temperature probe is reached, the second semiconductor cooler is automatically controlled to refrigerate, and meanwhile, the lifting device is shortened to pull the whole lifting supporting plate downwards, so that the two refrigerating rods on the second semiconductor cooler are both embedded into the corresponding embedded grooves to refrigerate the aquatic product storage box;

4) when the circulating fan operates for a period of time, detecting whether the temperature of the phase change heat storage material in the air heat exchange box is higher than a critical value through the first temperature probe, and controlling the first semiconductor refrigerator to refrigerate the phase change heat storage material when the temperature of the phase change heat storage material is higher than the critical value;

5) and meanwhile, when the circulating fan operates for 20min, the first valve is closed, and after the second valve is opened for 5min, the first valve is opened and the second valve is closed to ventilate and deodorize.

Has the advantages that:

1) the temperature control system of the aquatic product cold chain transport vehicle disclosed by the invention respectively monitors the temperature inside the temperature control carriage and the storage box through the storage box refrigerating system and the two refrigerating systems of the air refrigerating system in the carriage and performs cooling control, so that the aquatic product temperature can not be subjected to freezing treatment while ensuring enough freshness in the transportation process of the aquatic product, and the freshness of the whole aquatic product in cold chain transportation is greatly increased; meanwhile, the temperature control carriage can reduce excessive energy damage caused by excessive temperature difference inside and outside the carriage through controlling the temperature, and can also reduce the temperature change in the storage box, so that the cold chain transportation effect of the whole aquatic product is excellent, and long-distance long-time transportation can be realized.

2) The invention also exchanges air between the indoor air refrigeration system and the outside, and can remove impurities and sterilize through the arranged filter during air exchange, thereby preventing aquatic products from putrefaction caused by bacteria in the air; simultaneously, still set up photovoltaic power generation device and battery at the top in carriage, carry out photovoltaic power generation, accumulate in the transportation, it turns into the follow-up electric energy to the inside refrigeration control in carriage with light energy, has greatly increased the transportation continuation of the journey of whole cold chain transport vechicle, and its function is various, the result of use is excellent, the practicality is strong.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a flow chart of the steps of the temperature control method of the present invention.

FIG. 2 is a schematic view of the internal structure of the temperature controlled compartment in a three-dimensional cross section according to the present invention;

FIG. 3 is a schematic view of a front interior plan view of the temperature controlled compartment of the present invention;

fig. 4 is a schematic perspective view of the indoor air cooling system of the present invention;

FIG. 5 is a schematic perspective view of a serpentine tube, a circulating fan, etc. according to the present invention;

FIG. 6 is a schematic perspective view of a lifting pallet, a guide rail and the like according to the present invention;

FIG. 7 is a schematic perspective view of the aquatic product storage box according to the present invention;

FIG. 8 is a schematic view showing the inner plan structure of the aquatic product storage box according to the present invention;

FIG. 9 is a perspective view of a second semiconductor cooler according to the present invention;

FIG. 10 is a schematic view of the internal plan structure of the filter housing of the present invention;

FIG. 11 is a schematic perspective view of a solar photovoltaic power generation device, a storage battery, etc. according to the present invention;

fig. 12 is a control schematic diagram of the temperature control system of the present invention.

Wherein:

1-temperature control compartment, 100-central control processor, 101-double opening compartment door;

2-a storage box refrigeration system, 201-a guide rail, 202-a lifting supporting plate, 2021-a storage box placing groove, 2022-a strip port, 2023-a through hole, 203-a second semiconductor refrigerator, 2031-a refrigeration rod, 204-a connecting block, 205-a lifting device and 206-a second temperature probe;

3-indoor air refrigerating system, 301-crossbeam, 302-air heat exchange box, 303-phase change heat storage material, 304-first temperature probe, 305-first semiconductor refrigerator, 306-snake-shaped heat exchange tube, 307-circulating fan, 308-three-way connecting pipe, 309-first valve, 310-air filter, 3101-filter outer shell, 3102-filter screen layer, 3103-activated carbon adsorption layer, 3104-alcohol sterilization sponge layer, 311-second valve, 312-air guide vertical tube, 313-air outlet horizontal tube and 314-air outlet;

4-an aquatic product storage box, 401-a heat preservation box body, 402-a heat preservation box cover, 403-an embedded groove and 404-a temperature probe socket;

5-a temperature sensor, 6-a solar photovoltaic power generation device, 601-a stand column, 602-a photovoltaic panel carrier plate, 603-a photovoltaic power generation panel and 7-a storage battery.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The following describes the temperature control method and temperature control system of the aquatic product cold chain transportation vehicle disclosed in the present application in detail with reference to the accompanying drawings 1 to 12.

Example 1

Embodiment 1 discloses aquatic products cold chain transport vechicle's temperature control system, including cold chain transport vechicle body (not shown in the figure) and control by temperature change carriage 1, sets up control by temperature change carriage 1 fixed mounting on the transport vechicle body.

Referring to fig. 1 and 2, a double-open door 101 is arranged on the right end face of the temperature-controlled compartment 1, wherein the temperature-controlled compartment 1 and the double-open door 101 are both composed of inner and outer metal layers and a middle foam heat insulation layer, so that the whole compartment has a good heat insulation effect. A central control processor 100 is provided on the inner wall of the temperature-controlled compartment 1, and a storage box refrigeration system 2 and an in-compartment air refrigeration system 3 are provided in the temperature-controlled compartment 1.

Referring to the attached

drawings

2, 3 and 4, the indoor air cooling system 3 includes a row of beams 301 arranged at the upper end inside the temperature-controlled carriage 1 and an air heat exchange box 302 fixedly arranged on the beams 301, the beams 301 are i-shaped steel bars, the number of the i-shaped steel bars is 4-8, the front and rear ends of the i-shaped steel bars are welded with the inner wall of the temperature-controlled carriage 1, and meanwhile, the box wall of the air heat exchange box 302 is also formed by combining metal layers on the inner side and the outer side and a foam heat insulation layer in the middle. The air heat exchange box 302 is filled with a phase change heat storage material 303, which can be selected from the most common water, and the air inside the vehicle compartment is cooled through the phase change of water and ice. Meanwhile, a first temperature probe 304 inserted into the air heat exchange box 302 to be in contact with the phase change heat storage material 303 is provided on the upper surface of the air heat exchange box 302, a first semiconductor refrigerator 305 is further provided on the upper surface of the air heat exchange box 302, and the first semiconductor refrigerator 305 is extended into the air heat exchange box 302 to be in contact with the phase change heat storage material 303.

A serpentine heat exchange tube 306 is arranged inside the air heat exchange box 302 in a winding way, and the air inlet end of the serpentine heat exchange tube 306 is connected with a circulating fan 307. A three-way connection pipe 308 is connected to an air inlet end of the circulating fan 307, a first valve 309 is disposed at one end of the three-way connection pipe 308, the other end of the three-way connection pipe 308 extends out of the temperature control compartment 1, and a second valve 311 is disposed at an end of the three-way connection pipe 308, wherein the first valve 309 and the second valve 311 are both solenoid valves and are electrically connected to the central control processor 100. The air outlet end of the serpentine heat exchange tube 306 is connected with two symmetrically arranged air guide vertical tubes 312, the lower ends of the two air guide vertical tubes 312 are connected with air outlet transverse tubes 313 parallel to the bottom wall of the temperature control carriage 1, and a plurality of air outlets 314 are arranged on the opposite surfaces of the two air outlet transverse tubes 313 at intervals. Under normal conditions, the first valve 309 is opened, the second valve 311 is closed, and the air inside the compartment can continuously pass through the coiled pipe 306 by the left and right sides of the circulating fan 307, so that the air is in contact with the ice blocks of the air heat exchange box 302, the temperature of the discharged air is reduced, and the effect of reducing the temperature inside the compartment is achieved.

Referring to fig. 2 and fig. 6, the storage box refrigeration system 2 includes two guide rails 201 disposed on the left and right side walls of the lower end of the temperature-controlled compartment 1, a lifting support plate 202 is disposed between the two guide rails 201, and a horizontal air outlet pipe 313 is disposed between the lifting support plate 202 and the bottom wall of the temperature-controlled compartment 1. A plurality of storage box placing grooves 2021 are formed in the lifting supporting plate 202 in a rectangular array, two strip-shaped openings 2022 are formed in the bottom wall of each storage box placing groove 2021, and a large number of through holes 2023 are formed in the lifting supporting plate 202. Referring to fig. 9, the bottom wall of the temperature-controlled compartment 1 located right below each storage box placement groove 2021 is provided with a second semiconductor refrigerator 203, two refrigeration rods 2031 on each second semiconductor refrigerator 203 correspond to two strip-shaped ports 2022 on the corresponding storage box placement groove 2021, the left and right ends of the lifting support plate 202 are connected with connection blocks 204 matched with the guide rail 201, a lifting device 205 is located right below each connection block 204, the top end of the lifting device 205 is connected with the connection blocks 204, wherein the lifting device 205 is one of a dc electric push rod or a hydraulic oil cylinder.

Referring to fig. 7 and 8, a seafood storage box 4, in which seafood products are stored, is provided in each of the storage box placing grooves 2021. This aquatic products storage box 4 includes insulation box 401 and insulation box lid 402, and insulation box lid 402 passes through the hinge and is connected with insulation box 401 upper end opening rotation, is provided with on insulation box 401's diapire with two refrigeration stick 2031 assorted embedded groove 403 to embedded groove 403 is made by heat conduction metal material. Meanwhile, a temperature probe socket 404 is formed in the outer side surface of the heat insulation box 401, and a second temperature probe 206 capable of being inserted into the corresponding temperature probe socket 404 is connected to the temperature control compartment 1 through a lead. Finally, a temperature sensor 5 is also arranged on the inner wall of the temperature control compartment 1.

Example 2

This embodiment 2 discloses a temperature control system of an aquatic product cold chain transport vehicle improved based on embodiment 1, and the difference between the temperature control system and the tank body of embodiment 1 is shown in fig. 2, fig. 10 and fig. 11.

In the embodiment 2, an air filter 310 is fixedly mounted on the outer wall of the temperature-controlled cabin 1, the end of the three-way connection pipe 308 extending out of the temperature-controlled cabin 1 is connected with the air filter 310, and a second valve 311 is arranged between the air filter 310 and the three-way connection pipe 308. The air filter 310 includes a filter housing 3101, and the filter housing 3101 is provided with a filter mesh layer 3102, an activated carbon adsorption layer 3103, and an alcohol sterilizing sponge layer 3104 in this order from outside to inside. Its filter screen layer 3102 that sets up can filter the impurity in the air, and activated carbon adsorption layer 3103 can adsorb the little dust in the air, disinfects through alcohol sterilization sponge layer 3104 at last, guarantees the purity of the air of suction.

In addition, in the present embodiment 2, a solar photovoltaic power generation device 6 and a storage battery 7 are further provided on the upper surface of the temperature-controlled vehicle cabin 1. The solar photovoltaic power generation device 6 comprises stand columns 601 fixedly connected to four corners of the upper surface of the temperature control carriage 1, the top ends of the four stand columns 601 are connected with a photovoltaic panel carrier plate 602, a plurality of photovoltaic power generation panels 603 are mounted on the photovoltaic panel carrier plate 602, and the storage battery 7 is arranged on the upper surface of the temperature control carriage 1 right below the photovoltaic panel carrier plate 602. This embodiment 2 can carry out photovoltaic power generation in the transportation process through the above arrangement, and the electric energy thereof is stored in the storage battery 7 for the electric energy source of the subsequent refrigeration.

The invention also discloses a temperature control method by using the temperature control system disclosed in embodiment 1, which comprises the following steps:

1) presetting critical values of a first probe, a second probe and a temperature sensor, wherein the critical value of the first probe is set to be-2 ℃, the critical value of the second probe is set to be 10 ℃, and the temperature sensor is set to be 15 ℃.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a temperature control system of aquatic products cold chain transport vechicle, includes cold chain transport vechicle body and control by temperature change carriage (1), control by temperature change carriage (1) fixed mounting sets up on the transport vechicle body, its characterized in that, the right-hand member face in control by temperature change carriage (1) is provided with two divisions of railway carriage or compartment doors (101) of run from opposite directions, be provided with central control treater (100) on the inner wall in control by temperature change carriage (1), be provided with storage tank refrigerating system (2) and indoor air refrigerating system (3) in the railway carriage or compartment in control by temperature change carriage (1).

2. Temperature control system of a marine product cold chain transport vehicle according to claim 1,

wherein the indoor air refrigerating system (3) comprises a row of cross beams (301) arranged at the upper end in the temperature control compartment (1) and an air heat exchange box (302) fixedly arranged on the cross beams (301), the interior of the air heat exchange box (302) is filled with a phase change heat storage material (303), the upper surface of the air heat exchange box (302) is provided with a first temperature probe (304) inserted into the interior of the air heat exchange box (302) and contacted with the phase change heat storage material (303), the upper surface of the air heat exchange box (302) is also provided with a first semiconductor refrigerator (305), the first semiconductor refrigerator (305) extends into the interior of the air heat exchange box (302) and contacted with the phase change heat storage material (303), the interior of the air heat exchange box (302) is provided with a serpentine heat exchange tube (306) which is arranged in a roundabout way, and the air inlet end of the serpentine heat exchange tube (306) is connected with a circulating fan (307), the air inlet end of the circulating fan (307) is connected with a three-way connecting pipe (308), one end of the three-way connecting pipe (308) is provided with a first valve (309), the other end of the three-way connecting pipe (308) extends out of the temperature control compartment (1) to be arranged, an air filter (310) is fixedly arranged on the outer wall of the temperature control compartment (1), the end part of a three-way connecting pipe (308) extending out of the temperature control compartment (1) is connected with the air filter (310), and a second valve (311) is arranged between the air filter (310) and the three-way connecting pipe (308), the air outlet end of the serpentine heat exchange tube (306) is connected with two symmetrically arranged air guide vertical tubes (312), the lower ends of the two air guide vertical tubes (312) are connected with air outlet transverse tubes (313) parallel to the bottom wall of the temperature control carriage (1), and a plurality of air outlets (314) are formed in the opposite surfaces of the two air outlet transverse tubes (313) at intervals;

the storage box refrigerating system (2) comprises two guide rails (201) arranged on the left side wall and the right side wall of the lower end of a temperature control compartment (1), a lifting support plate (202) is arranged between the two guide rails (201), the air outlet transverse pipe (313) is arranged between the lifting support plate (202) and the bottom wall of the temperature control compartment (1), a plurality of storage box placing grooves (2021) are formed in the lifting support plate (202) in a rectangular array shape, two strip-shaped openings (2022) are formed in the bottom wall of each storage box placing groove (2021), a large number of through holes (2023) are formed in the lifting support plate (202), a second semiconductor refrigerator (203) is arranged on the bottom wall of the temperature control compartment (1) which is positioned right below each storage box placing groove (2021), two refrigerating rods (2031) on each second semiconductor refrigerator (203) correspond to the two strip-shaped openings (2022) on the corresponding storage box placing groove (2021), the left end and the right end of the lifting supporting plate (202) are connected with connecting blocks (204) matched with the guide rails (201), a lifting device (205) is arranged under each connecting block (204), and the top end of each lifting device (205) is connected with the corresponding connecting block (204);

an aquatic product storage box (4) is arranged in each storage box placing groove (2021), each aquatic product storage box (4) comprises a heat preservation box body (401) and a heat preservation box cover (402), each heat preservation box cover (402) is rotatably connected with an opening in the upper end of the corresponding heat preservation box body (401) through a hinge, an embedded groove (403) matched with the two refrigeration rods (2031) is formed in the bottom wall of the corresponding heat preservation box body (401), each embedded groove (403) is made of a heat-conducting metal material, a temperature probe socket (404) is formed in the outer side surface of the corresponding heat preservation box body (401), a second temperature probe (206) capable of being inserted into the corresponding temperature probe socket (404) is connected to the temperature control compartment (1) through a lead, and a temperature sensor (5) is further arranged on the inner wall of the temperature control compartment (1); the temperature control compartment (1) and the double-opening compartment door (101) are both formed by compounding an inner side metal layer, an outer side metal layer and a middle foam heat insulation layer.

3. The temperature control system of the aquatic product cold chain transport vehicle of claim 2, wherein the cross beam (301) is an I-shaped steel bar, 4-8I-shaped steel bars are arranged in one row, and the front end and the rear end of the I-shaped steel bar are welded to the inner wall of the temperature control carriage (1).

4. Temperature control system of aquatic product cold chain transportation vehicle according to claim 2, characterized in that the wall of the air heat exchange tank (302) is also composed of inner and outer metal layers and a middle foam thermal insulation layer.

5. The temperature control system of aquatic product cold chain transport vehicle of claim 2, wherein the first valve (309) and the second valve (311) are solenoid valves and are electrically connected to the central control processor (100).

6. The temperature control system of the aquatic product cold chain transport vehicle according to claim 2, wherein the air filter (310) comprises a filter outer shell (3101), and the filter outer shell (3101) is provided with a filter screen layer (3102), an activated carbon adsorption layer (3103) and an alcohol sterilizing sponge layer (3104) from outside to inside in sequence.

7. The temperature control system of the aquatic product cold chain transport vehicle of claim 2, wherein the lifting device (205) is one of a dc powered push rod or a hydraulic ram.

8. Temperature control system of aquatic products cold chain transport vechicle of claim 2, characterized in that, the upper surface of control by temperature change carriage (1) is provided with solar photovoltaic power generation device (6) and battery (7).

9. The temperature control system of the aquatic product cold chain transport vehicle of claim 8, wherein the solar photovoltaic power generation device (6) comprises columns (601) fixedly connected to four corners of the upper surface of the temperature control carriage (1), the top ends of the four columns (601) are connected to a photovoltaic panel carrier plate (602), a plurality of photovoltaic power generation panels (603) are mounted on the photovoltaic panel carrier plate (602), and the storage battery (7) is disposed on the upper surface of the temperature control carriage (1) right below the photovoltaic panel carrier plate (602).

10. A method for controlling temperature using the temperature control system according to any one of claims 2 to 9, comprising the steps of: