CN115962599A - Movable differential pressure precooling box and conveying device - Google Patents

Abstract

The invention provides a movable differential pressure precooling box and a conveying device, relates to the technical field of precooling equipment, and solves the technical problems that in the prior art, food is cooled in a conventional room, the cooling speed is low, and the precooling on the surface layer and the interior of a food stack is not uniform. This precooling case includes the box, refrigeration assembly, cover subassembly and a plurality of turnover basket, be equipped with first baffle in the box, in order to separate the box for storage cavity and refrigeration cavity, refrigeration assembly sets up in the refrigeration cavity, be provided with pressurization blowing mechanism and return air inlet on the first baffle, it sets up between pressurization blowing mechanism and return air inlet to cover the subassembly, the turnover basket sets up the both sides at the return air inlet along vertical pile up neatly, in order to form the turnover buttress, and cover the interval cavity that the subassembly can cover between the adjacent turnover buttress, force air conditioning to flow through between the food interval in each turnover basket and between the interval of adjacent turnover basket, take away the heat of food, make the food in each turnover case can cool down more rapidly evenly.

Description

Movable differential pressure precooling box and conveying device

Technical Field

The invention relates to the technical field of precooling equipment, in particular to a movable differential pressure precooling box and a conveying device.

Background

Pre-cooling refers to the process of rapidly cooling the food from the initial temperature (about 25-30 ℃) to the required refrigeration temperature (0-15 ℃). Precooling is an effective measure for rapidly removing field heat, inhibiting respiration, keeping the freshness of fruits and vegetables and prolonging the storage period. Precooling and fresh-keeping are important guarantees for increasing the supply of high-grade fresh vegetables and fruits. Precooling is the key to successful storage of vegetables and other horticultural products, and is also the first link in the implementation of cold chain systems.

Practice proves that the fruit and vegetable after precooling has low temperature, small breathing intensity and thermal stability. The precooling of the fruits and vegetables reduces the cold load of the refrigerated transport means and the refrigerator, so that the fruits and vegetables can be transported in a long distance. Pre-cooling may reduce losses of the edible portion of the pin, resulting in co-marketing and quality standardization.

In the prior art, the conventional indoor cooling is generally adopted, that is, after being collected, fruits, vegetables and other foods are directly conveyed and stacked in a pre-cooling box or a refrigerator, the surface layers of the foods are gradually cooled by the low temperature in the pre-cooling box or the refrigerator, however, the cooling speed is slow, the surface layers and the inner part of the food stacks are not uniformly pre-cooled, and the energy consumption is high.

Therefore, how to solve the technical problems that the food in the prior art is cooled in the conventional room, the cooling speed is slow, and the precooling on the surface layer and the interior of the food stack is not uniform becomes an important technical problem to be solved by the person in the field.

Disclosure of Invention

The invention aims to provide a movable differential pressure precooling box and a conveying device, which solve the technical problems that food is cooled in a conventional room in the prior art, the cooling speed is low, and the precooling on the surface layer and the interior of a food stack is not uniform. The technical effects that can be produced by the preferred technical scheme of the technical schemes provided by the invention are described in detail in the following.

In order to realize the purpose, the invention provides the following technical scheme:

the invention provides a movable differential pressure precooling box which comprises a box body, a refrigerating assembly, a covering assembly and a plurality of turnover baskets, wherein a first partition plate is arranged in the box body to divide an inner cavity of the box body into a storage cavity and a refrigerating cavity, the refrigerating assembly is arranged in the refrigerating cavity, a pressurizing and blowing mechanism and an air return opening are arranged on the first partition plate, the covering assembly is arranged between the pressurizing and blowing mechanism and the air return opening, the turnover baskets are vertically stacked on two sides of the air return opening to form turnover stacks, and the covering assembly can cover an interval cavity between every two adjacent turnover stacks.

Further, it includes coiled material, bracing piece, first driving piece and base to cover the subassembly, the first end of coiled material is connected around establishing on the bracing piece, the second end of coiled material can move towards the turnover buttress is stretched, the base sets up on the first baffle, just the base is right the bracing piece erects the support, first driving piece with the bracing piece is transmission connection mutually, just first driving piece can drive the coiled material carries out outside tensile or interior book and draws in.

Further, the refrigeration assembly comprises a compression condensing unit and a heat exchanger, a second partition plate is arranged in the refrigeration cavity, the refrigeration cavity is divided into a heat exchange chamber and a unit chamber which are arranged independently by the second partition plate, the compression condensing unit is arranged in the unit chamber, the heat exchanger is arranged in the heat exchange chamber, and a pipeline of the heat exchanger penetrates through the second partition plate and then is communicated with the compression condensing unit.

Further, the refrigeration assembly further comprises a support frame, the support frame is arranged below the heat exchanger, and the support frame can support the heat exchanger to a height position between the forced draft mechanism and the air return opening.

Further, the first partition plate and the second partition plate are made of heat insulation materials.

Further, the turnover basket is provided with a plurality of hollow holes, and the hollow holes are formed in the circumferential direction and/or the bottom of the turnover basket.

Further, the return air inlet is provided with a protective net, and the circumference of the protective net is detachably connected with the return air inlet.

Further, still include the anticollision sealing strip, the anticollision sealing strip clamp is established first baffle with between the turnover buttress, just the anticollision sealing strip is connected on the first baffle.

Furthermore, the pressurizing and blowing mechanism comprises a blowing opening and a fan, the fan is erected at the blowing opening, and one or at least two pressurizing and blowing mechanisms are arranged along the transverse direction.

The transportation device provided by the invention comprises the movable differential pressure precooling box and the driving vehicle body, wherein the movable differential pressure precooling box can be moved and transported along with the driving vehicle body.

Compared with the prior art, the invention has the following beneficial effects:

the invention provides a movable differential pressure precooling box, which is characterized in that a box body, a refrigerating assembly, a covering assembly and a plurality of turnover baskets are arranged, a first partition plate is arranged in the box body to divide an inner cavity of the box body into a storage chamber and a refrigerating chamber, the refrigerating assembly is arranged in the refrigerating chamber, a pressurizing and blowing mechanism and an air return opening are arranged on the first partition plate, the covering assembly is arranged between the pressurizing and blowing mechanism and the air return opening, the turnover baskets are vertically stacked on two sides of the air return opening to form turnover baskets, the covering assembly can cover the spacing chambers between the adjacent turnover baskets, after the foods are stacked, the covering assembly can be stretched and laid above and on the rear side of the turnover baskets and the spacing chambers so as to shield openings of the spacing chambers, therefore, the storage chamber is divided into a positive pressure area corresponding to the communication of the pressurizing and blowing mechanism and a negative pressure area corresponding to the communication of the air return opening and the spacing chambers, the pressurizing and conveying cold air in the refrigerating chamber into the positive pressure area by the pressurizing and conveying mechanism, the positive pressure difference between the positive pressure area and the negative pressure area is formed by the separation between the turnover baskets and the inner cavity of each turnover basket, and the adjacent turnover baskets, and the heat of the foods can be more uniformly taken away.

Drawings

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

Fig. 1 is a schematic axial view of an internal structure of a mobile differential pressure precooling box provided by an embodiment of the invention after a right side plate is hidden;

FIG. 2 is a schematic front view of the internal structure of the mobile differential pressure precooling box provided by the embodiment of the invention;

FIG. 3 isbase:Sub>A schematic view of section A-A of FIG. 2 provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of section B-B of FIG. 2 provided by an embodiment of the present invention;

FIG. 5 is a schematic view of the position of a crash seal provided by an embodiment of the present invention;

figure 6 is a schematic view of a transfer basket provided by an embodiment of the present invention.

FIG. 1-box; 2-a refrigeration component; 3-a covering component; 4-a turnover basket; 5-a first separator; 6-a storage chamber; 7-a refrigeration chamber; 8-a pressurized blowing mechanism; 9-air return inlet; 10-coiled material; 11-a support bar; 12-a first drive member; 13-a base; 14-a compression condensing unit; 15-a heat exchanger; 16-a second separator; 17-a heat exchange chamber; 18-a unit room; 19-a support frame; 20-hollow holes; 21-a protective net; 22-anti-collision sealing strip; 23-an air blowing port; 24-fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a movable differential pressure precooling box and a conveying device, which solve the technical problems that food is cooled in a conventional room in the prior art, the cooling speed is low, and the precooling on the surface layer and the interior of a food stack is not uniform.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.

The technical solution of the present invention will be described in detail with reference to specific examples.

Example 1:

referring to fig. 1-4, the movable differential pressure precooling box provided by the embodiment comprises a box body 1, a refrigerating assembly 2, a covering assembly 3 and a plurality of turnover baskets 4, wherein a first partition plate 5 is arranged in the box body 1 to divide an inner cavity of the box body 1 into a storage chamber 6 and a refrigerating chamber 7, the storage chamber 6 is used for stacking and storing food, and the volume of the storage chamber 6 can be larger than that of the refrigerating chamber 7 so as to provide a larger storage space for the food. Refrigeration subassembly 2 sets up in refrigeration cavity 7, is provided with pressurization blower mechanism 8 and return air inlet 9 on the first baffle 5, covers subassembly 3 and sets up between pressurization blower mechanism 8 and return air inlet 9 to cover the tensile back of laying of subassembly 3, can separate the region of the storage cavity 6 that pressurization blower mechanism 8 and return air inlet 9 correspond. The turnover baskets 4 are arranged on two sides of the air return opening 9 along the vertical stacking to form turnover stacks, and the covering assemblies 3 can cover space chambers between adjacent turnover stacks, namely, placing spaces are reserved between the adjacent turnover stacks to form space chambers which are communicated with the air return opening 9 to form a negative pressure area.

So set up, during the use, treat that the food of precooling leaves in each turnover basket 4 respectively, and each turnover basket 4 can vertical pile up neatly for the turnover buttress, and the turnover buttress is placed in the left and right sides of return air inlet 9, can make the interval cavity be located the rear position of return air inlet 9 to the interval cavity is corresponding with return air inlet 9 intercommunication and position. After the food is stacked, the covering component 3 can be stretched and laid above the turnover stacks and the spacing chambers and on the rear side of the turnover stacks and the spacing chambers, so that openings of the spacing chambers can be conveniently shielded, the storage chamber 6 is divided into a positive pressure area corresponding to the communication of the pressurizing and blowing mechanism 8 and a negative pressure area corresponding to the communication of the air return port 9 and the spacing chambers, the pressurizing and blowing mechanism 8 pressurizes and conveys cold air in the refrigeration chamber 7 into the positive pressure area, the positive pressure area and the negative pressure area have pressure difference due to the separation of the turnover stacks and the covering component 3, and the pressure difference is formed between the positive pressure area and the negative pressure area, so that the cold air is forced to take away heat of the food from the food intervals of the inner cavities of the turnover baskets 4 and the intervals of the adjacent turnover baskets 4, and the food in the turnover stacks can be rapidly and uniformly cooled. The cold air after cooling the food flows back to the refrigeration chamber 7 through the air return opening 9, the cold air exchanges heat with the refrigeration component 2 and then is pressurized and supplied by the pressurized blowing mechanism 8 again for circulation, and the quick refrigeration of the food in the turnover basket 4 can be realized through repeated circulation. The invention ensures that air flow with certain speed forces cold air to pass through cooling objects such as food and the like to a greater extent through the matching of the turnover box, the covering component 3 and the air return opening 9, so that the heat of the cooling objects flows through the refrigerating component 2 in a forced convection mode to be rapidly taken away, the cooling speed is greatly improved under the condition that the contact area of the cooling objects and the cold air is greatly increased, the cold air is ensured to pass through the filling layer of the cooled food to a greater extent, the field heat of the food can be rapidly removed, the water loss rate is reduced, the respiration rate is reduced, the pathogenic bacteria propagation is inhibited, the ethylene release amount is reduced, the consumption of nutritional ingredients is reduced, the storage time and the shelf life are prolonged, the cold loads of a refrigerator and a refrigerator car and a ship can be effectively reduced, the energy-saving operation of a cold storage and transportation device is realized, cold air flows from a low-temperature side to a high-temperature side, the condensation phenomenon can be avoided, the cooling is uniform, the air supply amount is low, the energy consumption is low, the device is suitable for small farms, the device cost is low, and the technical problems of the conventional indoor cooling of the prior art that the cooling speed is slow, the surface layer of food stack is precooling and the interior is uneven are solved.

Example 2:

referring to fig. 1-4, the present embodiment further defines the specific structure of the mobile differential pressure precooling tank on the basis of embodiment 1. The covering assembly 3 includes a coiled material 10, a support rod 11, a first driving member 12 and a base 13, the coiled material 10 may be made of a material that is not easy to ventilate, and specifically, the coiled material 10 may be, but is not limited to, a tarpaulin, a glued cloth, and a chemical fiber fabric. The first end of coiled material 10 is established around being connected on support bar 11, and the second end of coiled material 10 can stretch towards the turnover buttress, and that is coiled the storage can be wound around support bar 11 to coiled material 10, also can stretch in the reverse direction and outwards lay. The second end of the coiled material 10 can be provided with a counterweight rod, the counterweight rod has a certain weight, and after the second end of the coiled material 10 shields the turnover stack in place, the counterweight rod can be pulled and dropped on the second end of the coiled material 10 to apply pressure to the coiled material 10, so that the situation that the second end of the coiled material 10 is randomly turned up to influence the pressure difference between the positive pressure area and the negative pressure area is avoided. The base 13 is disposed on the first partition 5, and the base 13 supports the supporting rod 11, and the base 13 may be disposed near both end portions of the supporting rod 11. The first driving member 12 can be mounted on the base 13, and the first driving member 12 can be, but not limited to, a motor, a hydraulic cylinder or an air cylinder as long as it can drive the supporting rod 11 to rotate. First driving piece 12 is connected with bracing piece 11 looks transmission, and first driving piece 12 can drive coiled material 10 and carry out the outward stretching or the interior book is drawn in, so set up, after the turnover buttress is good, first driving piece 12 drive bracing piece 11 rotates and then drives coiled material 10 forward rotation, and the cooperation user can stimulate the second end of coiled material 10, can lay coiled material 10 in the top and the rear side that shelter from subassembly and interval cavity, the air conditioning that has greatly reduced the positive pressure district gets into from the opening part of interval cavity, the air conditioning that makes the positive pressure district can flow through between the food interval of the inner chamber of each turnover basket 4 and between the interval of adjacent turnover basket 4 from the lateral part of turnover buttress more, take away the heat of food, the food in each turnover of messenger's turnover buttress can more evenly cool down.

Wherein, a moving mechanism can be arranged between the base 13 and the first partition board 5, and two sets of moving mechanisms can be arranged, which are respectively arranged at the base 13 positions at two sides of the support rod 11. The moving mechanism may include a guide rail disposed between the base 13 and the first partition 5 and a second driving member, which may be, but not limited to, an air cylinder, a hydraulic cylinder or a motor, and the motor may be a belt transmission, a chain transmission or a lead screw nut structure for driving the support rod 11. The second driving piece is in transmission connection with the base 13 and can drive the base 13 to vertically lift along the guide rail, so that the laying height of the base 13 and the coiled materials 10 can be adjusted according to the heights of different turnover stacks, and the applicability is better.

Referring to fig. 1-2, as an optional implementation manner of the embodiment of the present invention, the refrigeration assembly 2 includes a compression condensing unit 14 and a heat exchanger 15, a second partition 16 is disposed in the refrigeration chamber 7, the second partition 16 divides the refrigeration chamber 7 into a heat exchange chamber 17 and a unit chamber 18, which are disposed independently, the compression condensing unit 14 is disposed in the unit chamber 18, the heat exchanger 15 may be disposed in the heat exchange chamber 17 in a transverse direction, the cold air can pass through the heat exchanger 15 from bottom to top after flowing back from the storage chamber 6, the cold air is cooled by exchanging heat with the heat exchanger 15 and then blown out from the forced draft mechanism 8, a pipeline of the heat exchanger 15 passes through the second partition 16 and then communicates with the compression condensing unit 14, when flowing through a fin gap of the heat exchanger 15, heat in the cold air is absorbed by a low temperature fin, and the heat is dissipated to the outside atmosphere by the matched compression condensing unit 14. And through setting up second baffle 16, can greatly reduce the influence of compression condensing unit 14 work to air conditioning and heat exchanger 15 heat transfer process, make air conditioning can be cooled down more fast.

Further, the refrigeration assembly 2 further includes a support frame 19, the support frame 19 may be a rectangular or triangular frame structure, the support frame 19 is disposed below the heat exchanger 15, and the support frame 19 may be disposed at a circumferential edge position below the heat exchanger 15, so as to reduce a circulation influence of the cool air flowing from the air return opening 9. The support frame 19 can support the heat exchanger 15 to the high position department between the pressurization blower mechanism 8 and the return air inlet 9, the heat exchanger 15 can be along transversely tiling setting in heat exchange chamber 17, separate the upper and lower space of heat exchange chamber 17, so set up, air conditioning flows into to heat exchange chamber 17 in by return air inlet 9, then air conditioning is cooled down after the fin of heat exchanger 15 is flowed through by supreme down, blow off from the pressurization blower mechanism 8 again, the support frame 19 can stabilize the support to heat exchanger 15, reduce rocking the aversion of heat exchanger 15.

Further, the first partition board 5 and the second partition board 16 are made of heat insulation materials, which may be but not limited to rigid polyurethane sandwich insulation boards, asbestos boards, vacuum boards, etc., and can greatly reduce heat conduction between different chambers, so that the temperature in each chamber is more stable.

Referring to fig. 6, as an alternative implementation manner of the embodiment of the present invention, the turnover basket 4 has a plurality of hollow holes 20, and the hollow holes 20 are disposed at the circumference and/or the bottom of the turnover basket 4, so that the air permeability of the turnover basket 4 can be greatly increased, and the cold air can flow through the hollow holes 20 more between the food gaps in the inner cavity of the turnover basket 4, so as to take away more heat from the food, so that the food in each turnover box of the turnover stack can be cooled more uniformly. Wherein the turnaround basket 4 may be, but is not limited to, an open-cell plastic basket or an open-cell carton.

Referring to fig. 1 to 5, as an optional implementation manner of the embodiment of the present invention, a protective net 21 is disposed at the air return opening 9, a circumference of the protective net 21 is detachably connected to the air return opening 9, the connection may be, but not limited to, a bolt connection or a snap connection, and the protective net 21 can prevent foreign matters from entering the heat exchange chamber 17 while achieving air communication between the negative pressure region and the heat exchange chamber 17, so as to protect the heat exchanger 15 and the refrigeration pipes and valves.

Referring to fig. 5, as an optional implementation manner of the embodiment of the present invention, the movable differential pressure precooling box further includes an anti-collision sealing strip 22, the anti-collision sealing strip 22 is clamped between the first partition plate 5 and the turnaround stack, and the anti-collision sealing strip 22 is connected to the first partition plate 5, the anti-collision sealing strip 22 may be, but is not limited to, made of rubber or silica gel, and can play a role in buffering and damping between the turnaround stack and the first partition plate 5, so that impact and collision of the turnaround stack on the first partition plate 5 are greatly reduced, and deformation of the first partition plate 5 is reduced.

Referring to fig. 1-5, as an alternative implementation manner of the embodiment of the present invention, the forced-air blowing mechanism 8 includes an air blowing port 23 and a fan 24, the fan 24 is installed at the air blowing port 23, one or at least two forced-air blowing mechanisms 8 are installed along the transverse direction, so that the cooled air in the heat exchange chamber 17 can be pressurized by the fan 24 and then circulated, and a plurality of forced-air blowing mechanisms 8 can be installed along the transverse direction, thereby greatly increasing the pressure difference between the positive pressure region and the negative pressure region, and cooling the storage chamber 6 more quickly.

Example 3:

the conveyer that this embodiment provided, including foretell portable pressure differential precooling case and drive automobile body, portable pressure differential precooling case can remove the transportation along with the drive automobile body, so sets up, and portable pressure differential precooling case and drive automobile body mutually support, can be used for the fruit vegetables precooling of field top of a field, and a equipment is used in many places, and portable pressure differential precooling case can carry out on-vehicle removal along with the drive automobile body, is applicable to various region fruit vegetables precooling, can be supporting with a plurality of refrigeratories in different places. After the food is stacked, the covering component 3 can be stretched and laid above the turnover stacks and the spacing chambers and on the rear side of the turnover stacks and the spacing chambers, so that openings of the spacing chambers can be conveniently shielded, the storage chamber 6 is divided into a positive pressure area corresponding to the communication of the pressurizing and blowing mechanism 8 and a negative pressure area corresponding to the communication of the air return port 9 and the spacing chambers, the pressurizing and blowing mechanism 8 pressurizes and conveys cold air in the refrigeration chamber 7 into the positive pressure area, the positive pressure area and the negative pressure area have pressure difference due to the separation of the turnover stacks and the covering component 3, and the pressure difference is formed between the positive pressure area and the negative pressure area, so that the cold air is forced to take away heat of the food from the food intervals of the inner cavities of the turnover baskets 4 and the intervals of the adjacent turnover baskets 4, and the food in the turnover stacks can be rapidly and uniformly cooled. The cold air after cooling the food flows back to the refrigeration chamber 7 through the air return opening 9, the cold air exchanges heat with the refrigeration component 2 and then is pressurized and supplied by the pressurized blowing mechanism 8 again for circulation, and the quick refrigeration of the food in the turnover basket 4 can be realized through repeated circulation.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The utility model provides a portable pressure differential precooling box, its characterized in that includes box (1), refrigeration subassembly (2), covers subassembly (3) and a plurality of turnover basket (4), be provided with first baffle (5) in box (1), in order to incite somebody to action the inner chamber of box (1) is separated for storage chamber (6) and refrigeration chamber (7), refrigeration subassembly (2) set up in refrigeration chamber (7), be provided with pressurization blowing mechanism (8) and return air inlet (9) on first baffle (5), it is in to cover subassembly (3) setting pressurization blowing mechanism (8) with between return air inlet (9), turnover basket (4) are in along vertical pile up neatly the both sides of return air inlet (9) to form the turnover buttress, just it can cover adjacent to cover subassembly (3) interval chamber between the turnover buttress.

2. The mobile differential pressure precooling box according to claim 1, wherein the covering assembly (3) comprises a coiled material (10), a support rod (11), a first driving member (12) and a base (13), the first end of the coiled material (10) is connected on the support rod (11) around the arrangement, the second end of the coiled material (10) can be stretched towards the turnover stack, the base (13) is arranged on the first partition plate (5), the support rod (11) is erected and supported by the base (13), the first driving member (12) is in transmission connection with the support rod (11), and the first driving member (12) can drive the coiled material (10) to be stretched outwards or furled inwards.

3. The mobile differential pressure precooling tank according to claim 1, wherein the refrigerating assembly (2) comprises a compression condensing unit (14) and a heat exchanger (15), a second partition (16) is arranged in the refrigerating chamber (7), the refrigerating chamber (7) is divided into a heat exchange chamber (17) and a unit chamber (18) which are arranged independently by the second partition (16), the compression condensing unit (14) is arranged in the unit chamber (18), the heat exchanger (15) is arranged in the heat exchange chamber (17), and a pipeline of the heat exchanger (15) penetrates through the second partition (16) and then is communicated with the compression condensing unit (14).

4. A mobile differential-pressure pre-cooling box according to claim 3, characterized in that the refrigeration assembly (2) further comprises a support bracket (19), the support bracket (19) being arranged below the heat exchanger (15), the support bracket (19) being capable of supporting the heat exchanger (15) to a height position between the forced air blowing mechanism (8) and the return air opening (9).

5. Mobile differential-pressure precooler tank according to claim 3, characterized in that the first partition (5) and the second partition (16) are of insulating material.

6. Mobile differential-pressure precooler tank according to claim 1, characterized in that the turnaround basket (4) has a plurality of hollowed-out holes (20), the hollowed-out holes (20) being provided at the periphery and/or at the bottom of the turnaround basket (4).

7. The mobile differential pressure precooling tank according to claim 1, wherein the return air inlet (9) is provided with a protective screen (21), and the circumferential direction of the protective screen (21) is detachably connected with the return air inlet (9).

8. A mobile differential pressure precooler as claimed in claim 1, further comprising a crash seal (22), wherein the crash seal (22) is sandwiched between the first partition (5) and the turnaround stack, and wherein the crash seal (22) is connected to the first partition (5).

9. A mobile differential pressure pre-cooling box according to claim 1, characterized in that the pressurized blast mechanism (8) comprises a blast opening (23) and a fan (24), the fan (24) is erected at the blast opening (23), and the pressurized blast mechanism (8) is provided with one or at least two in the lateral direction.

10. A transport apparatus comprising a mobile differential pressure pre-cooling box according to any one of claims 1 to 9 and a drive vehicle body, wherein the mobile differential pressure pre-cooling box can be transported in motion with the drive vehicle body.

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