CN217125490U - Put cold die piece and fresh-keeping case - Google Patents

Abstract

The utility model discloses a put cold module and have its fresh-keeping case, put cold module including storing up cold unit, wind channel, fan, spray the unit, supply the liquid unit: the cold storage unit comprises a cold storage box for accommodating solid and/or liquid cold storage media; the air duct is provided with an air inlet and an air outlet; the fan drives air to circulate inside and outside the air channel through the air inlet and the air outlet; the spraying unit is arranged in the air duct and is provided with a spraying port for spraying liquid cold storage medium, and the spraying port is arranged towards the air inlet or the air outlet; the liquid supply unit is used for supplying liquid cold storage medium in the cold storage box to the spraying unit. The utility model discloses a put cold module with spray unit because cold-storage medium and air direct contact have promoted the utilization ratio of cold volume. The liquid cold storage medium diffused from the spraying port of the spraying unit is fully contacted with the gas flowing from the air inlet to the air outlet, so that the heat exchange effect is improved.

Description

Put cold die piece and fresh-keeping case

Technical Field

The utility model relates to a fresh-keeping field, in particular to put cold die piece and fresh-keeping case.

Background

After the agricultural products are picked, in order to ensure the fresh quality, the agricultural products need to be stored through a fresh-keeping box which can cool the agricultural products. The fresh-keeping box can be arranged on a transport tool, can also be placed in various places such as a production place, a sorting place and a selling place for use, and is transported to other places through the transport tool after use.

The existing fresh-keeping box is cooled down through cold storage media capable of storing cold, particularly, the fresh-keeping box comprises a heat exchanger made of metal materials, the cold storage media flow in the heat exchanger, and heat exchange is achieved through the heat exchanger. However, the cold energy of the cold storage medium is transferred to the heat exchanger and then transferred to the air by the heat exchanger, so that the cold energy is partially lost. If the cold storage medium is in direct contact with the air, the heat exchange effect of the cold storage medium and the air is poor due to the limited contact area of the cold storage medium and the air, and the requirement of freshness preservation of the freshness preservation box cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a make and store up cold medium and air and fully contact in order to promote the put cold module and the fresh-keeping case of heat exchange effect.

In order to realize one of the above objects of the present invention, an embodiment of the present invention provides a cooling module, including:

a cold storage unit including a cold storage tank for accommodating a solid and/or liquid cold storage medium;

the air duct is provided with an air inlet and an air outlet;

the fan drives air to circulate inside and outside the air channel through the air inlet and the air outlet;

the spraying unit is arranged in the air duct and is provided with a spraying port for spraying liquid cold storage medium, and the spraying port is arranged towards the air inlet or the air outlet;

and the liquid supply unit is used for supplying the liquid cold storage medium in the cold storage box to the spraying unit.

As an embodiment of the utility model provides a further improvement, the air intake the air outlet set up respectively in the preceding, back both sides in wind channel, it includes along the shower that the upper and lower direction extends, a plurality of to spray the unit the mouth is followed the extending direction of shower distribute in on the shower.

As a further improvement of an embodiment of the present invention, the spraying unit includes one or a plurality of spraying assemblies, the spraying assembly includes a plurality of showers distributed along the left and right directions, and is adjacent to the spraying opening of the showers along the extending direction of the showers is staggered.

As a further improvement of an embodiment of the present invention, when the spraying assembly is plural, it is plural that the spraying assembly is distributed along the front-back direction, and is adjacent to the spraying pipe of the spraying assembly which is staggered in the left-right direction.

As a further improvement of an embodiment of the present invention, the spray nozzle is provided with a centrifugal spray nozzle or a pressure type spray nozzle.

As a further improvement of an embodiment of the present invention, the cooling module includes at least one fan, and the fan is installed in the air duct;

or the cooling module comprises a plurality of fans, and the plurality of fans are arranged at the air inlet or the air outlet;

or the cooling module further comprises a plurality of air inlets and a plurality of fans, the fans are installed at the air inlets, and at least one fan is installed at each air inlet;

or, the cooling module further comprises a plurality of air outlets and a plurality of fans, the fans are installed at the air outlets, and at least one fan is installed at each air outlet.

As a further improvement of an embodiment of the present invention, the liquid supply unit includes a communication inside the cold storage box and a liquid supply pipe of the spraying unit, and a driving pump installed on the liquid supply pipe for driving the liquid cold storage medium to flow.

As a further improvement of an embodiment of the present invention, the cooling module includes a liquid collecting unit for collecting liquid cold-storage medium, the liquid collecting unit is disposed in the air duct and located below the spraying unit, the liquid collecting unit has a liquid blocking portion for blocking the liquid cold-storage medium from flowing out of the liquid collecting unit, and at least a part of the liquid blocking portion is disposed at the front side and the rear side of the liquid collecting unit;

the cooling module also comprises a liquid return unit which is used for discharging the liquid cold storage medium in the liquid collection unit to the cold storage box.

As a further improvement of an embodiment of the present invention, the cooling module further includes a discharge unit, the discharge unit includes: the liquid-state cold storage medium in the liquid collecting unit is discharged to the outside through the first discharging structure, and/or the liquid-state cold storage medium in the cold storage box is discharged to the outside through the second discharging structure.

As a further improvement of an embodiment of the present invention, the cooling module further includes a liquid blocking unit disposed between the air outlet and the spraying unit, and the liquid blocking unit includes an installation block fixed on the bottom wall of the air duct and a liquid blocking plate group installed on the installation block;

the liquid blocking plate group comprises a plurality of liquid blocking plates which are arranged along the left-right direction and a channel formed between the adjacent liquid blocking plates, each liquid blocking plate comprises a first unit, a second unit and a liquid blocking part, the end part of each second unit is connected with the end part of the corresponding first unit, the liquid blocking part is arranged on the outer side of the connecting position of the corresponding first unit and the corresponding second unit, and the first unit and the second unit form a zigzag shape or a curve shape.

As a further improvement of an embodiment of the present invention, the liquid baffle includes two first units and one second unit, and the two first units are respectively connected to two ends of the second unit;

or the liquid baffle comprises at least two first units and at least two second units, and the first units and the second units are alternately distributed.

In order to realize one of the above objects of the present invention, an embodiment of the present invention provides a fresh-keeping box, including a storage chamber and the above-mentioned cooling module, the cooling module is used for providing cooling capacity to the inside of the storage chamber.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses because store up cold medium and air direct contact, promoted the utilization ratio of cold volume. The liquid cold storage medium diffused from the spraying port of the spraying unit is fully contacted with the gas flowing from the air inlet to the air outlet, so that the heat exchange effect is improved, the spraying unit can supplement the humidity of the air, and the air drying of agricultural products is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a cooling module according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cooling module according to an embodiment of the present invention;

fig. 3 is a left side view of a blower and air duct according to an embodiment of the present invention;

fig. 4 is a left side view of the blower and the duct according to another embodiment of the present invention;

FIG. 5 is a rear view of a duct according to an embodiment of the present invention;

FIG. 6 is a front view of an air duct according to an embodiment of the present invention;

FIG. 7 is a rear view of a duct according to another embodiment of the present invention;

FIG. 8 is a rear view of a duct according to another embodiment of the present invention;

fig. 9 is a plan view of a baffle group according to an embodiment of the present invention;

fig. 10 is a front view of a spray assembly according to an embodiment of the present invention;

fig. 11 is a plan view of a spray unit according to an embodiment of the present invention;

fig. 12 is a schematic view of the internal structure of an air duct in which the liquid collecting unit is a water pan according to an embodiment of the present invention;

fig. 13 is a schematic view of an internal structure of an air duct according to an embodiment of the present invention;

FIG. 14 is a schematic view of an internal structure of an air duct according to another embodiment of the present invention

Fig. 15 is a schematic structural view of a cold storage unit, a liquid supply unit, and a liquid return unit according to an embodiment of the present invention;

fig. 16 is a schematic structural view of a fresh keeping box according to an embodiment of the present invention;

fig. 17 is a schematic structural view of a fresh keeping box according to another embodiment of the present invention;

FIG. 18 is a schematic structural view of a fresh keeping box according to yet another embodiment of the present invention;

FIG. 19 is a schematic structural view of a cold chain transportation vehicle according to an embodiment of the present invention

Wherein, 1, a fresh-keeping box; 2. a cockpit; 10. a cooling module; 101. an air duct; 1011. an air inlet; 1012. an air outlet; 102. a fan; 103. a cold storage unit; 1031. a cold storage tank; 104. a liquid supply unit; 1041. a liquid supply tube; 1042. driving the pump; 105. a spraying unit; 1051. a shower pipe; 1052. a spray port; 1053. connecting branch pipes; 1054. connecting a main pipe; 106. a liquid blocking unit; 1061. a liquid baffle plate group; 10611. a liquid baffle; 106111, a first unit; 106112, a second unit; 106113, a liquid blocking part; 10612. a channel; 1062. mounting blocks; 107. a liquid collecting unit; 1071. a groove; 1072. a water collection tray; 1073. a liquid blocking section; 108. a liquid return unit; 109. a discharge unit; 1091. a first discharge structure; 10911. a first discharge conduit; 10912. a first valve; 1092. a second discharge structure; 10921. a second discharge conduit; 10922. a second valve; 1093. a spray head; 110. a sewage discharge unit; 20. a storage chamber; 30. a door body; 40. a housing chamber; 50. a partition plate; 501. a first window; 502. a second window; 60. an air supply channel; 601. a diameter-variable part; 602. an air supply opening.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.

In the various figures of the present invention, certain dimensions of structures or portions are exaggerated relative to other structures or portions for ease of illustration, and thus, are used only to illustrate the basic structure of the subject matter of the present invention.

The utility model discloses in, the position that is used for opening the door body of storing room in the relative fresh-keeping case of definition cool-releasing module is the front direction, and the direction opposite with the place ahead is the rear direction. The utility model discloses the orientation of the relative fresh-keeping case of cockpit is preceding in the definition on the horizontal direction, and left right direction is mutually perpendicular with the fore-and-aft direction on the horizontal direction.

In the prior art, the cold release module for cold release is realized through the heat exchanger made of metal, and cold release is realized through the contact of the heat exchanger and air, so that the cold energy is partially lost. Moreover, if the heat exchanger is arranged in the storage chamber, moisture in the air is easy to condense on the surface of the heat exchanger, and the quality of agricultural products is affected after the moisture drips on the agricultural products. If the heat exchanger is outside the storing room, make the surface that the air blown the heat exchanger through the fan flow to the storing again indoor, the indoor agricultural product of storing easily air-dries, also can influence the quality of agricultural product.

The utility model discloses a preferred embodiment provides a put cold module 10 for fresh-keeping case 1 that has storing room 20 puts cold module 10 and is used for providing cold volume to the agricultural product in the storing room 20 of fresh-keeping case 1, thereby fresh-keeping agricultural product.

As shown in fig. 1 and 2, the cooling module 10 includes an air duct 101, a fan 102, a cold storage unit 103, a liquid supply unit 104, and a spray unit 105. Wherein the cold storage unit 103 includes a cold storage tank 1031 for accommodating a cold storage medium. The liquid supply unit 104 is configured to supply the liquid cold storage medium in the cold storage tank 1031 to the spray unit 105. The air duct 101 has an air inlet 1011 and an air outlet 1012, and the spraying unit 105 is located in the air duct 101 and is used for spraying a cold storage medium to cool the air in the air duct 101. The fan 102 is used to drive air to circulate inside and outside the air duct 101, thereby circulating the air between absorbing the cold of the liquid cold storage medium and providing the cold to the agricultural products.

The utility model discloses a put cold module 10 with spray unit 105 because cold-storage medium and air direct contact have promoted the utilization ratio of cold volume, do not have the problem of dripping simultaneously, and spray the humidity that unit 105 can supply the air, avoid agricultural product to air-dry.

The air duct 101 is internally provided with an area for exchanging heat between air and a cold storage medium. As shown in fig. 1, the air duct 101 has an air inlet 1011 and an air outlet 1012, and air enters the air duct 101 from the air inlet 1011 and exits the air duct 101 from the air outlet 1012 to supply cold to agricultural products.

The air inlet 1011 and the air outlet 1012 of the air duct 101 are respectively disposed at the front side and the rear side of the air duct 101, so as to prevent the liquid cold storage medium gathered at the bottom of the air duct 101 from flowing out of the air inlet 1011 and the air outlet 1012. The cool air blown out from the air outlet 1012 of the air duct 101 flows backward, then settles downward to cool the agricultural products located at the lower rear portion of the air duct 101, then moves forward along the surfaces of the agricultural products and/or the gaps between the agricultural products, and finally flows out from the air inlet 1011 back to the air duct 101, completing the cycle.

The air duct 101 may be located inside the storage compartment 20 or outside the storage compartment 20. When the air duct 101 is located inside the storage compartment 20, the air duct 101 is provided in the front region of the storage compartment 20, and the air duct 101 does not affect the loading work when loading the goods from the rear portion of the storage compartment 20 into the storage compartment 20. A gap is formed between the bottom of the air duct 101 and the bottom wall of the storage chamber 20, and the gap can be used for placing part of agricultural products. A first gap for air to pass through is formed between the front wall of the storage chamber 20 and the air duct 101.

The fan 102 is used for driving air to flow, so that air circulates inside and outside the air duct 101 through the air inlet 1011 and the air outlet 1012. The flowing air exchanges heat with the cold storage medium in the air duct 101, and enters the storage chamber 20 after the temperature is reduced, so as to reduce the temperature of the agricultural products.

Specifically, as shown in fig. 3, the cooling module 10 includes at least one fan 102, and the fan 102 is installed in the air duct 101. The blower 102 may be located in front of the spray unit 105, where the suction side of the blower 102 is located at a side away from the spray unit 105 and the blowing side of the blower 102 is located at a side toward the spray unit 105. The fan 102 may also be located behind the spraying unit 105, where the air suction side of the fan 102 is located on the side facing the spraying unit 105, and the air blowing side of the fan 102 is located on the side facing away from the spraying unit 105.

Or, as shown in fig. 5, the length of the air inlet 1011 in the left-right direction is greater than the height of the air inlet 1011 in the up-down direction, the plurality of fans 102 are installed at the air inlet 1011, and the plurality of fans 102 are distributed in the left-right direction, and the adjacent fans 102 are attached to each other. At this time, the suction side of the fan 102 is located on the side away from the shower unit 105, and the blowing side of the fan 102 is located on the side toward the shower unit 105.

Or, as shown in fig. 4 and fig. 6, the length of the air outlet 1012 in the left-right direction is greater than the height of the air outlet in the up-down direction, the plurality of fans 102 are installed at the air outlet 1012, and the plurality of fans 102 are distributed in the left-right direction, and the adjacent fans 102 are attached to each other. At this time, the suction side of the fan 102 is located at the side toward the shower unit 105, and the blowing side of the fan 102 is located at the side away from the shower unit 105.

Or, as shown in fig. 7, the cooling module 10 further includes a plurality of air inlets 1011 and a plurality of fans 102, the fans 102 are installed at the air inlets 1011, and at least one fan 102 is installed at each air inlet 1011. At this time, the suction side of the fan 102 is located on the side away from the shower unit 105, and the blowing side of the fan 102 is located on the side toward the shower unit 105.

Or, as shown in fig. 8, the cooling module 10 further includes a plurality of air outlets 1012 and a plurality of fans 102, the fans 102 are installed at the air outlets 1012, and at least one fan 102 is installed at each air outlet 1012. At this time, the suction side of the fan 102 is located at the side toward the shower unit 105, and the blowing side of the fan 102 is located at the side away from the shower unit 105.

Further, the fan 102 is a variable frequency fan 102, and the rotating speed of the variable frequency fan 102 can be adjusted according to requirements. For example, when the cooling module 10 needs to rapidly cool the agricultural products, the rotation speed of the fan 102 is increased, the flow rate of the air is increased, and in the case that the cooling storage medium sprayed by the spraying unit 105 is sufficient, more air contacts with the cooling storage medium, so that the cooling capacity discharged by the cooling storage medium is sufficiently absorbed. When the cooling module 10 only needs to maintain the low temperature of the agricultural products, the rotation speed of the fan 102 is reduced, so that the energy consumption of the fan 102 is reduced.

As shown in fig. 1, the cooling module 10 further includes a liquid blocking unit 106, and the liquid blocking unit 106 is configured to block the liquid cooling medium in the air duct 101 from being discharged from the air outlet 1012 along with air, so as to prevent the quality of agricultural products from being affected by overhigh humidity in the storage chamber 20.

The baffle unit 106 includes a baffle group 1061. The liquid baffle plate set 1061 may be installed inside the air duct 101, or may be installed at the air outlet 1012. As shown in fig. 9, the liquid baffle group 1061 includes a plurality of liquid baffles 10611 arranged in the left-right direction, and channels 10612 formed between adjacent liquid baffles 10611. The liquid blocking plate 10611 includes a first unit 106111, a second unit 106112 having an end connected to an end of the first unit 106111, and a liquid blocking portion 106113 disposed outside a connection position between the first unit 106111 and the second unit 106112, and the first unit 106111 and the second unit 106112 are formed in a zigzag or curved shape. In the connection position between the first unit 106111 and the second unit 106112, the side between the opposing surfaces of the first unit 106111 and the second unit 106112 is the inner side, and the side opposite to the inner side is the outer side. As the air entrained with the liquid cold storage medium flows through the tortuous passage 10612, the air is forced to change direction of motion continuously, and due to the large inertia of the liquid cold storage medium, the liquid cold storage medium collides with the surface of the liquid barrier 106113 and gathers on the liquid barrier 106113 to form a liquid film, and finally the liquid cold storage medium flows down along the liquid barrier 106113.

Further, the liquid baffle 10611 includes two first units 106111 and one second unit 106112, and the two first units 106111 are respectively connected to two ends of the second unit 106112; alternatively, the liquid baffle 10611 includes at least two first cells 106111 and at least two second cells 106112, and the first cells 106111 and the second cells 106112 are alternately distributed.

Specifically, the liquid blocking portion 106113 protrudes from the surface of the liquid blocking plate 10611 into the channel 10612, so that a groove is formed between the liquid blocking portion 106113 and the liquid blocking plate 10611, and the opening direction of the groove is opposite to the inlet of the channel 10612. The liquid cold storage medium gradually collects at the groove, and when collected to a certain extent, flows down the groove 1071, and finally returns into the air duct 101.

Further, as shown in fig. 1, the liquid blocking unit 106 further includes a mounting block 1062, and the liquid blocking plate group 1061 is mounted on the mounting block 1062. The mounting block 1062 is fixedly mounted to the bottom wall of the air duct 101 or integrally formed with the bottom wall of the air duct 101. The liquid cold storage medium flowing down the liquid baffle plate group 1061 is prevented from leaking by the installation block 1062.

Further, in an embodiment where the fan 102 is located behind the spraying unit 105, the fan 102 is disposed on a side of the liquid blocking unit 106 facing away from the spraying unit 105, and the spraying port 1052 faces the air inlet 1011. The liquid blocking unit 106 prevents the liquid cold storage medium from entering the motor of the fan 102, so that the fan 102 is effectively protected, and the service life of the fan 102 is prolonged.

The cold storage unit 103 is a source of cold energy of the fresh-keeping box 1. Because cold storage unit 103 has stored a large amount of cold volume through storing up cold medium, the utility model discloses a put cold module 10 for traditional refrigerating unit or fill the cold machine, it is fast to put cold, and puts cold volume in the short time and enlarge. The direction of spraying the liquid cold-storage medium towards the spraying port 1052 of the air inlet 1011 deviates from the liquid-blocking unit 106, so as to avoid the damage of the fan 102 caused by the penetration of part of the liquid cold-storage medium into the liquid-blocking unit 106 due to the excessive amount of the liquid cold-storage medium entering the liquid-blocking unit 106.

As shown in fig. 1, the cold storage unit 103 includes a cold storage tank 1031, the cold storage tank 1031 is used for accommodating a solid and/or liquid cold storage medium, and the cold storage tank 1031 can keep warm of the cold storage medium therein.

The cold storage medium can store cold and supply the cold by contacting with air by the spraying action of the spraying unit 105. The cold storage medium includes both a single-component cold storage medium such as water, alcohol, etc.; also included are multi-component cold storage media, such as saline-based mixtures, alcohol-water based mixtures, salt-alcohol-water based mixtures. And a proper cold storage medium can be selected according to the required cold quantity and the temperature control range thereof. The cold storage medium has a solid state and a liquid state. The solid state is more stable than the liquid state, including both morphological stability for physical storage and low entropy stability on energy, but the solid state is not easily transported and is not easily contacted with air. The liquid cold storage medium is conveniently transmitted to the spraying unit 105, and is easy to diffuse after being sprayed by the spraying unit 105, so that the contact area with the air is increased. When the solid cold storage medium is changed into liquid, a large amount of heat can be absorbed, and a large amount of cold can be released outwards.

Further, the heat storage tank 1031 has a tank port for adding a heat storage medium, and the tank port may be provided at the top or the side of the heat storage tank 1031. The cold storage unit 103 further includes a cover mounted on the cold storage tank 1031 to open or close the tank opening. When the lid opens the tank opening, a solid and/or liquid cold storage medium can be introduced into the interior of the cold storage tank 1031. When the lid closes the tank opening, even if the cooling module 10 swings, the liquid cooling medium inside the cooling storage tank 1031 is not easily leaked.

In one embodiment, the cold storage unit 103 of the present invention is described by taking water as the cold storage medium. The cold storage medium is ice blocks in a solid state and is water in a liquid state. Before cold chain transportation, enough ice blocks with stable forms are added into the cold storage tank 1031 according to the required cold quantity, so as to realize quick cold storage; the temperature of the ice blocks is increased or melted into water after heat absorption, the water and the ice blocks are mixed to form an ice-water mixture, and the temperature of the water is lower than that of cold water at about 0 ℃; the cold water is transmitted to the spraying unit 105 by the liquid supply unit 104, and the sprayed cold water is heated after heat exchange with air, and then flows back to the cold storage tank 1031 to exchange heat with ice blocks and/or ice water.

It should be noted that, if the cooling module 10 needs to immediately supply cold to the storage chamber 20 after rapid cold storage, and the ice blocks do not melt into enough cold water, a part of water needs to be added into the cold storage tank 1031 after the ice blocks are loaded, and then the part of water is supplied to the spraying unit 105, so that the heat exchange between the higher-temperature return water and the ice blocks is performed, and the water in the cold storage tank 1031 is increased. If there is a certain time after the quick cold storage before the fresh keeping box 1 is carried to the destination and agricultural products are loaded, a part of ice blocks will be melted into water to form ice-water mixture, and cold water does not need to be added at the beginning.

The cold storage unit 103 may be disposed inside the storage compartment 20 or outside the storage compartment 20. When the cold storage unit 103 is located in the storage chamber 20, the heat insulating material of the storage chamber 20 can prevent the loss of the cold energy of the cold storage medium in the cold storage tank 1031.

Further, the fan 102 and the cold storage unit 103 are both disposed in the storage chamber 20, the cold storage tank 1031 is disposed below the air duct 101, and a second gap for air to pass through is formed between the cold storage tank 1031 and the air duct 101 to prevent the cold storage tank 1031 from obstructing air circulation.

The liquid supply unit 104 functions to supply the liquid-state cold storage medium in the cold storage tank 1031 to the spray unit 105 and to provide power for the spray unit 105 to spray the liquid-state cold storage medium. As shown in fig. 1, the liquid supply unit 104 includes a liquid supply pipe 1041 and a driving pump 1042.

The liquid supply pipe 1041 communicates the inside of the heat storage tank 1031 with the shower unit 105, thereby providing a passage 10612 for the flow of the heat storage medium from the heat storage tank 1031 to the shower unit 105. Specifically, a liquid supply port is formed in a side wall of the cold storage tank 1031, and the liquid supply pipe 1041 is communicated with the liquid supply port, so that the liquid supply pipe 1041 is communicated with the interior of the cold storage tank 1031; alternatively, the liquid supply pipe 1041 extends into a lower region inside the heat storage tank 1031, so that the liquid supply pipe 1041 communicates with the inside of the heat storage tank 1031.

The liquid supply pipe 1041 needs to extend into the air duct 101 to be connected with the spraying unit 105. A through hole for the liquid supply pipe 1041 to pass through is formed in the air duct 101, the through hole is located on the side of the air duct 101 and has a certain distance from the bottom of the air duct 101, and a sealing material is arranged between the inner wall of the through hole and the liquid supply pipe 1041 to prevent water collected at the bottom of the air duct 101 from flowing out from a gap between the inner wall of the through hole and the liquid supply pipe 1041; or, the liquid supply pipe 1041 enters the air duct 101 from the air inlet 1011; alternatively, the liquid supply pipe 1041 enters the inside of the air duct 101 from the air outlet 1012.

The driving pump 1042 is installed on the liquid supply pipe 1041 for driving the flow of the liquid cold storage medium. Also, the driving pump 1042 provides power to spray the refrigerant storage medium from the spray unit 105.

Further, the driving pump 1042 is a variable frequency pump, and has a function of controlling the flow rate of the cold storage medium. The pump 1042 is driven to control the cooling speed of the cooling module 10 by controlling the flow rate of the cooling medium. For example, when rapid cooling is required, the pump 1042 is driven to increase the flow rate of the cooling medium, so that the spraying unit 105 sprays the cooling medium faster, and the cooling module 10 has a faster cooling speed because more cooling medium exchanges heat with air per unit time. During the transportation process of the cold chain transport vehicle, only the agricultural products need to be kept fresh, at the moment, the flow rate of the cold storage medium is reduced by driving the pump 1042, the speed of spraying the cold storage medium by the spraying unit 105 is reduced, the consumption speed of the cold energy stored in the cold storage medium is reduced, the cold energy is prevented from being completely released before the cold chain transport vehicle reaches the destination, and the energy consumption of the driving pump 1042 is reduced.

Or, the driving pump 1042 is a power frequency pump, and the liquid supply unit 104 further includes a flow regulating valve installed on the liquid supply pipe 1041, and the flow regulating valve controls the flow of the cold storage medium to control the cooling speed of the cooling module 10. For example, when rapid cooling is required, the flow rate of the cooling medium is increased by the flow rate control valve, the spraying unit 105 sprays the cooling medium faster, and the cooling medium exchanges heat with the air more per unit time, so the cooling speed of the cooling module 10 is faster. In the transportation process of the cold chain transport vehicle, only the agricultural products need to be kept fresh, the flow of the cold storage medium is reduced through the flow regulating valve, the speed of spraying the cold storage medium by the spraying unit 105 is reduced, and the consumption speed of the cold energy stored in the cold storage medium is reduced.

As shown in fig. 10, the spraying unit 105 has a spraying port 1052 for spraying a liquid cold storage medium, and the sprayed cold storage medium is directly contacted with air to perform heat exchange.

The spraying port 1052 is disposed toward the air inlet 1011 or the air outlet 1012. Thus, the liquid cold storage medium diffused from the spraying port 1052 of the spraying unit 105 can fully contact with the gas flowing from the air inlet 1011 to the air outlet 1012, and the heat exchange effect is improved.

The utility model discloses an preferably spray mouthful 1052 towards air intake 1011 setting of an embodiment, the liquid cold-storage medium that sprays out is relative with gaseous stream, and is better for the mode heat exchange effect that sprays mouthful 1052 towards air outlet 1012.

Further, a centrifugal spray nozzle or a pressure spray nozzle is arranged at the spray port 1052. The centrifugal spray nozzle is a spray nozzle in which a liquid is thrown into droplets by centrifugal force by a dispersion disk rotating at a high speed, and the pressure spray nozzle is a spray nozzle in which a liquid is thrown into droplets by high-speed movement of the liquid in a rotating chamber by a pump pressure. Through centrifugal atomizing nozzle or pressure type atomizing nozzle, make liquid cold-storage medium form the atomizing state of diffusion, promote the area of contact with the air to promote the heat exchange effect.

When a pressure type spray nozzle is arranged at the spray port 1052, the power for atomizing the pressure type spray nozzle is provided by the driving pump 1042 of the liquid supply unit 104.

The spraying unit 105 includes a spraying pipe 1051 extending in an up-and-down direction, and a plurality of spraying ports 1052 are distributed on the spraying pipe 1051 along the extending direction of the spraying pipe 1051. Thus, in the case that the air in the air duct 101 moves from front to back, the plurality of spray ports 1052 can increase the contact area between the sprayed liquid cold storage medium and the air, thereby increasing the heat exchange effect.

Further, as shown in fig. 1, the spray unit 105 includes one or more spray components. The shower assembly includes a plurality of shower pipes 1051 distributed in the left-right direction. By arranging the plurality of spray pipes 1051, the coverage area of the sprayed liquid cold storage medium is increased, and the contact area of the liquid cold storage medium and air is increased, so that the heat exchange effect is improved. The spray ports 1052 of the adjacent spray pipes 1051 are arranged in a staggered manner along the extending direction of the spray pipes 1051, the staggered area of the liquid cold storage mediums sprayed out from different spray ports 1052 is reduced, and the contact area between the liquid cold storage mediums and air is further increased.

In one embodiment, as shown in fig. 1, when the number of the spraying assemblies is plural, the plural spraying assemblies are distributed along the front-back direction. Through setting up a plurality of spray assembly, make the volume of the liquid cold-storage medium that sprays out increase to the contact number of times of liquid cold-storage medium and air increases, thereby promotes the heat exchange effect. The spray pipes 1051 of the adjacent spray assemblies are arranged in a staggered manner in the left-right direction, so that the spray areas of the adjacent spray assemblies are prevented from being partially overlapped, and the liquid cold storage medium sprayed by the spray unit 105 is fully contacted with air.

As shown in fig. 11, the spray assembly further includes a connecting branch 1053, and the spray pipes 1051 are all communicated with the connecting branch 1053. The connecting branch pipes 1053 of the adjacent spray assemblies are communicated with each other, and the connecting branch pipe 1053 of any spray assembly is communicated with the liquid supply pipe 1041; or, the spraying unit 105 further includes a connecting header 1054, the connecting branch 1053 of the plurality of spraying assemblies are all communicated with the connecting header 1054, and the connecting header 1054 is communicated with the liquid supply tube 1041.

In an embodiment of the present invention, as shown in fig. 1 and 12, the cooling module 10 further includes a liquid collecting unit 107, the liquid collecting unit 107 is used for collecting the liquid cold storage medium sprayed by the spraying unit 105, and the liquid collecting unit 107 is disposed in the air duct 101 and located below the spraying unit 105. The collected liquid-state cold storage medium is discharged to the outside, and/or discharged into the cold storage unit 103.

In order to ensure that the liquid cold storage medium sprayed by the spraying unit 105 can fall into the liquid collecting unit 107, the liquid collecting unit 107 corresponds to the spraying unit 105, and the area of the liquid collecting unit 107 is larger than that of the spraying unit 105, so that the projection of the liquid collecting unit 107 on the horizontal plane can cover the projection of the spraying unit 105 on the horizontal plane.

As shown in fig. 1 and 12, in order to prevent the liquid cold storage medium in the liquid collecting unit 107 from leaking out of the air inlet 1011 or the air outlet 1012 due to the shaking of the fresh keeping box 1 during transportation, the liquid collecting unit 107 further includes liquid blocking portions 1073 located on the front side and the rear side of the liquid collecting unit 107, and a space between the liquid blocking portions 1073 is used for collecting the liquid cold storage medium.

In one embodiment, as shown in fig. 1, a groove 1071 is provided inside the wind tunnel 101 below the spray unit 105, the groove 1071 forming the liquid collection unit 107. As shown in fig. 1, the liquid blocking portion 1073 on the front side is formed by the front wall of the air duct 101. Alternatively, as shown in fig. 2, the air duct 101 is provided with a rib behind the air inlet 1011, and the rib forms a liquid blocking portion 1073 located on the front side. The liquid blocking part 1073 on the rear side is formed by a mounting block 1062. Thus, the liquid cold storage medium flowing down the liquid guard plate group 1061 enters the liquid collecting unit 107.

In another embodiment, as shown in fig. 12, the liquid collecting unit 107 is a water pan installed inside the wind tunnel 101. The liquid resistance part 1073 is arranged at the front side and the rear side of the water pan, and the liquid resistance part 1073 is also arranged at the left side and the right side of the water pan, and the liquid resistance part 1073 positioned at the periphery of the water pan limits a space for collecting liquid cold storage medium. In order to prevent the liquid cold storage medium in the water pan from converging to the bottom of the air duct 101, the liquid blocking portion 1073 abuts against the inner wall of the air duct 101.

Further, as shown in fig. 13, the liquid collecting unit 107 is disposed obliquely, and the liquid-state cold storage medium is collected at the lower end of the liquid collecting unit 107, so as to facilitate subsequent discharge or recovery of the cold storage medium. Or, as shown in fig. 14, the liquid collecting unit 107 has two opposite slopes, so that the middle area of the liquid collecting unit 107 is the lowest end, the liquid cold storage medium is concentrated in the middle of the liquid collecting unit 107, which is convenient for subsequent discharge or recovery of the cold storage medium, and meanwhile, when the fresh-keeping box 1 shakes during the running of the cold chain carrier, the cold storage medium in the middle of the liquid collecting unit 107 is not easy to flow out of the liquid collecting unit 107.

The cooling module 10 further includes a liquid returning unit 108, and the liquid returning unit 108 is configured to discharge the liquid cooling medium stored in the liquid collecting unit 107 to the cooling tank 1031. The liquid returning unit 108 is a pipe having a first end communicating with the liquid collecting unit 107 and a second end communicating with the cold storage tank 1031.

Specifically, in the embodiment where the liquid collecting unit 107 has the lowest end, the liquid collecting unit 107 is provided with a liquid outlet at the lowest end, and the first end of the liquid returning unit 108 is communicated with the liquid outlet. A through hole is arranged on the cold storage tank 1031, the second end of the liquid returning unit 108 is communicated with the through hole, or the second end of the liquid returning unit 108 passes through the through hole and extends into the cold storage tank 1031

Specifically, the through hole is provided at the top of the heat storage tank 1031.

Alternatively, the through hole is provided at a side portion of the heat storage tank 1031. Also, as shown in fig. 15, the second end of the liquid returning unit 108 is higher than the end of the liquid supply pipe 1041 for communicating with the interior of the heat storage tank 1031, so as to prevent the recovered liquid state heat storage medium from being absorbed by the liquid supply unit 104 without being cooled.

Further, a through hole for allowing the liquid return unit 108 to pass through is formed in the bottom wall of the air duct 101, and a sealing material is installed between the hole wall of the hole and the liquid return unit 108 in order to prevent the liquid cold storage medium from leaking out from a gap between the hole wall of the through hole and the liquid return unit 108.

Further, as shown in fig. 2, a hole is provided in the bottom wall of the air duct 101 at the rear of the liquid blocking unit 106 and in front of the liquid blocking portion 1073 located at the front side, and the hole is communicated with a duct communicating with the cold storage tank 1031, and functions to discharge the liquid passing over the mounting block 1062 and the liquid blocking portion 1073.

As shown in fig. 1, the cooling module 10 further includes a discharge unit 109, which can discharge the surplus liquid cooling medium during transportation, thereby reducing weight and transportation cost.

In the first embodiment, the discharge unit 109 includes a first discharge structure 1091 for discharging the cold storage medium in a liquid state in the liquid trap unit 107 to the outside. The first drain 1091 includes a first drain 10911, a first valve 10912 for closing and opening the first drain 10911. A first end of the first discharge pipe 10911 communicates with the liquid collecting unit 107, and a second end thereof extends to the outside through the wall of the storage chamber 20. In embodiments where the liquid collection unit 107 has a lowermost end, the liquid collection unit 107 is provided with a liquid outlet at the lowermost end, and the first end of the first discharge conduit 10911 communicates with the liquid outlet.

In the second embodiment, the discharge unit 109 includes a second discharge structure 1092 for discharging the cold storage medium in the liquid state in the cold storage tank 1031 to the outside. The second discharge structure 1092 includes a second discharge conduit 10921, a second valve 10922 for closing and opening a second discharge conduit 10921.

The first end of the second discharge pipe 10921 communicates with the cold storage tank 1031, and the second discharge pipe 10921 is connected to the cold storage tank 1031 at a position higher than the end of the liquid supply pipe 1041 that absorbs the cold storage medium, to ensure that the liquid supply pipe 1041 extends into the liquid cold storage medium to a sufficient depth. A second end of the second discharge duct 10921 extends through the wall of the storage compartment 20 to the outside.

Further, the discharge unit 109 further includes a spray head 1093 connected to the second end of the first discharge pipe 10911 or the second end of the second discharge pipe 10921, the spray head 1093 sprays liquid cold storage medium to the outer wall of the fresh food box 1 to clean the fresh food box 1, and the vehicle body can be cooled by using the remaining cold of the cold storage medium, so as to reduce the dissipation of the cold inside the storage chamber 20.

Of course, the discharge unit 109 may also include both the first discharge structure 1091 and the second discharge structure 1092.

As shown in fig. 1, the cooling module 10 further includes a drain unit 110 for discharging the cold storage medium in a liquid state in the cold storage tank 1031 after the cold chain carrier arrives at a destination, and the drain unit 110 includes a drain pipe connected to the cold storage tank 1031 and a drain valve for opening or closing the drain pipe. The position where the drain pipe is connected to the cold storage tank 1031 is lower than the end of the liquid supply pipe 1041 that absorbs the cold storage medium, so as to ensure that the drain unit 110 can completely discharge the liquid cold storage medium remaining in the cold storage tank 1031 and the liquid supply pipe 1041.

As shown in fig. 16 and 17, the preferred embodiment of the present invention also provides a fresh keeping box for storing agricultural products and providing cold to the agricultural products.

The fresh-keeping box 1 comprises a storage chamber 20, a door 30 and the cooling module 10 of the above embodiment. Wherein, storing room 20 is used for placing agricultural product, puts cold module 10 and provides cold volume in to storing room 20. The door 30 is located at the rear of the fresh food box 1 and opens or closes the storage compartment 20. When the door 30 opens the storage compartment 20, the worker can load or unload goods into or from the storage compartment 20. After the door 30 closes the storage chamber 20, the closed storage chamber 20 can reduce the loss of cold energy.

Further, the inner wall of the storage chamber 20 is made of a heat insulating material, or a heat insulating material is attached to the inner wall of the storage chamber 20. The door 30 is internally provided with a heat insulating material, or the surface of the door 30 is adhered with the heat insulating material. Under the action of the heat-insulating material, the cold energy dissipated by the preservation box 1 after the door 30 is closed is reduced.

In one embodiment, as shown in fig. 16, the air duct 101 and the cold storage unit 103 are both disposed in the storage compartment 20. The fan 102 drives air to circulate between the storage chamber 20 and the air duct 101 through the air inlet 1011 and the air outlet 1012. The insulation material on the wall of the storage chamber 20 reduces to prevent excessive dissipation of the cold energy of the cold storage unit 103.

In another embodiment, as shown in fig. 17, the fresh food box 1 further includes a receiving chamber 40 and a partition 50 separating the receiving chamber 40 from the storage chamber 20. The storage compartment 40 is preferably located in front of the storage compartment 20 to avoid the storage compartment 40 from interfering with loading and unloading goods into and from the storage compartment 20. The air duct 101 and/or the cold storage unit 103 are disposed in the receiving chamber 40.

When the wind tunnel 101 is located inside the housing 40, the partition 50 is provided with a first window 501 communicating with the wind outlet 1012 and a second window 502 communicating with the wind inlet 1011. The fan 102 drives the gas to flow from the air outlet 1012 to the air inlet 1011 in the air duct 101, then drives the gas to flow through the first window 501, the storage chamber 20 and the second window 502, and finally the gas enters the air duct 101 from the air inlet 1011, thereby completing the circulation of the gas.

When the cold storage unit 103 is inside the accommodating chamber 40, the inner wall of the accommodating chamber 40 is made of a thermal insulation material, or the inner wall of the accommodating chamber 40 is adhered with a thermal insulation material, so as to reduce the dissipation of cold energy of the cold storage medium in the cold storage tank 1031.

Further, the fresh food box 1 further includes a small door for opening or closing the receiving chamber 40. In this way, when the cooling storage medium is loaded into the cooling storage tank 1031, it is not necessary to open the door 30 of the storage compartment 20. For example, in the transportation process of the fresh keeping box 1, if the cold storage medium is used up, and the cold chain transportation vehicle needs to replenish the cold storage medium, the accommodating chamber 40 is opened, the storage chamber 20 does not need to be opened, and the outside hot air is prevented from entering the storage chamber 20.

When the air duct 101 and the cold storage unit 103 are both located inside the storage compartment 20, the air duct 101 is located above the cold storage unit 103, and a gap through which air flows is provided between the air duct 101 and the cold storage unit 103.

In yet another embodiment, as shown in fig. 18, the fresh food box 1 further includes a partition plate 50 disposed below the air duct 101, the partition plate 50, the bottom wall of the air duct 101, and the front wall of the fresh food box 1 form a storage chamber 40, and the cold storage box 1031 is disposed in the storage chamber 40.

The fresh-keeping box 1 further comprises an air supply channel 60 for guiding the air. In embodiments where the air chute 101 is located in the housing compartment 40, the air supply channel 60 interfaces with the first window 501. In embodiments where the air chute 101 is located in the storage compartment 20, the air supply channel 60 interfaces with the air outlet 1012. The side of the air supply channel 60 facing the air duct 101 has a diameter-variable portion 601 with a diameter gradually decreasing in a direction away from the air duct 101, and the diameter-variable portion 601 is used for increasing the flow speed of the air.

The air supply channel 60 extends in the front-rear direction, an air supply port 602 for allowing air to enter the storage chamber 20 is formed at the bottom of the air supply channel 60, and the air supply ports 602 are distributed in the front-rear direction. The cool air entering the air supply passage 60 is blown out from the air supply opening 602, and the plurality of air supply openings 602 ensure that the agricultural products at the rear of the storage compartment 20 are also blown by the cool air.

The utility model discloses a preferred embodiment still reforms transform the freight train that does not possess cold-stored function to current, installs additional and to provide cold volume to put cold die piece 10 in the storing room 20. Reference herein to trucks includes, but is not limited to: minibus, 4 m 2 truck, 9 m 6 truck, etc., which are collectively referred to as cold chain transport vehicle with the cooling module 10 added.

In particular, a preferred embodiment of the present invention provides a cold chain transport vehicle for providing cooling to goods. As shown in fig. 19, the cold chain transport vehicle comprises a cockpit 2 and a fresh keeping box 1 for storing agricultural products according to the above embodiment. Wherein, the cockpit 2 is located in front of the fresh-keeping box 1.

And the cold chain transport vehicle is usually provided with a battery which can provide power for the fan 102 and the drive pump 1042. Wherein, the fresh-keeping box 1 and the cockpit 2 can be arranged in an integrated manner like a buggy ladle or in a split manner like a truck. In addition, the fresh-keeping box 1 can be used in various places such as production places, sorting places, sales places and the like, and is transported to other places by a transport tool after being used.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (12)

1. A cool-down module, comprising:

a cold storage unit comprising a cold storage tank for accommodating a solid and/or liquid cold storage medium;

the air duct is provided with an air inlet and an air outlet;

the fan drives air to circulate inside and outside the air channel through the air inlet and the air outlet;

the spraying unit is arranged in the air duct and is provided with a spraying port for spraying liquid cold storage medium, and the spraying port is arranged towards the air inlet or the air outlet;

and the liquid supply unit is used for supplying the liquid cold storage medium in the cold storage box to the spraying unit.

2. The cool-releasing module as claimed in claim 1, wherein the air inlet and the air outlet are respectively disposed at the front and rear sides of the air duct, the spraying unit includes a spraying pipe extending in an up-down direction, and the plurality of spraying openings are distributed on the spraying pipe along the extending direction of the spraying pipe.

3. The cool-down module as claimed in claim 2, wherein the spraying unit comprises one or more spraying assemblies, the spraying assemblies comprise a plurality of spraying pipes distributed along the left-right direction, and the spraying openings of the adjacent spraying pipes are staggered along the extending direction of the spraying pipes.

4. The cool-down module of claim 3, wherein when the spray assemblies are plural, the plural spray assemblies are distributed in a front-rear direction, and the spray pipes of the adjacent spray assemblies are staggered in a left-right direction.

5. The cool-down module of claim 1, wherein a centrifugal spray nozzle or a pressure spray nozzle is provided at the spray opening.

6. The cool-down module of claim 1, wherein the cool-down module includes at least one of the fans mounted within the air duct;

or the cooling module comprises a plurality of fans, and the plurality of fans are arranged at the air inlet or the air outlet;

or the cooling module further comprises a plurality of air inlets and a plurality of fans, the fans are installed at the air inlets, and at least one fan is installed at each air inlet;

or, the cooling module further comprises a plurality of air outlets and a plurality of fans, the fans are installed at the air outlets, and at least one fan is installed at each air outlet.

7. The cool-down module as claimed in claim 1, wherein the liquid supply unit includes a liquid supply pipe communicating the inside of the heat storage box and the spray unit, and a driving pump installed on the liquid supply pipe for driving the flow of the liquid cold storage medium.

8. The cool-down module as claimed in claim 1, wherein the cool-down module includes a liquid collecting unit for collecting the liquid cool-storage medium, the liquid collecting unit being disposed in the air duct and under the spray unit, the liquid collecting unit having a liquid blocking portion for blocking the liquid cool-storage medium from flowing out of the liquid collecting unit, at least a part of the liquid blocking portion being disposed at a front side and a rear side of the liquid collecting unit;

the cooling module also comprises a liquid return unit which is used for discharging the liquid cold storage medium in the liquid collection unit to the cold storage box.

9. The cool-down module of claim 8, further comprising a discharge unit, the discharge unit comprising: the liquid-state cold storage medium in the liquid collecting unit is discharged to the outside through the first discharging structure, and/or the liquid-state cold storage medium in the cold storage box is discharged to the outside through the second discharging structure.

10. The cool-releasing module of any one of claims 1 to 9, further comprising a liquid-blocking unit disposed between the air outlet and the spraying unit, wherein the liquid-blocking unit comprises a mounting block fixed to the bottom wall of the air duct and a liquid-blocking plate group mounted on the mounting block;

the liquid blocking plate group comprises a plurality of liquid blocking plates which are arranged along the left-right direction and a channel formed between the adjacent liquid blocking plates, each liquid blocking plate comprises a first unit, a second unit and a liquid blocking part, the end part of each second unit is connected with the end part of the corresponding first unit, the liquid blocking part is arranged on the outer side of the connecting position of the corresponding first unit and the corresponding second unit, and the first unit and the second unit form a zigzag shape or a curve shape.

11. The cool-down module as claimed in claim 10, wherein the liquid blocking plate includes two first units and one second unit, the two first units being connected to both ends of the second unit, respectively;

or the liquid baffle comprises at least two first units and at least two second units, and the first units and the second units are alternately distributed.

12. A crisper comprising a storage compartment and a cooling module as claimed in any of claims 1 to 11, the cooling module being arranged to provide cooling energy to the interior of the storage compartment.

Images