WO2018082317A1

WO2018082317A1 - Green and environmentally friendly electric refrigerator truck and refrigeration method

Info

Publication number: WO2018082317A1
Application number: PCT/CN2017/089882
Authority: WO
Inventors: 高秀民
Original assignee: 高秀民
Priority date: 2016-11-07
Filing date: 2017-06-24
Publication date: 2018-05-11
Also published as: CN106482386A

Abstract

An electric refrigerator truck, comprising an electric vehicle (1), a semiconductor cooler (2), and a water cooling module (3). The water cooling module (3) comprises a main water tank (31), a first water pump (32), multiple levels of heat-exchanging water cushions (33), and a gas pump. Multiple supporting airbags (35) are distributed in the heat-exchanging water cushions (33). The heat-exchanging water cushions (33) are provided with a water intake opening and a water return opening. The water intake opening is connected to the first water pump (32) via a corresponding solenoid valve. The water return opening is connected to the main water tank (31) via a corresponding solenoid valve. The first water pump (32) is connected to the main water tank (31). Multiple air springs (36) are provided below the heat-exchanging water cushions (33). The air springs (36) and the support airbags (35) respectively are connected to the air pump via corresponding solenoid valves. The multiple levels of heat-exchanging water cushions (33) are stacked together. A cool extremity of the semiconductor cooler (2) is embedded in the main water tank (31). The electric vehicle is provided with a machine compartment (11) and a cargo container (12). The semiconductor cooler (2), the main water tank (31), the first water pump (32), and the gas pump are arranged in the machine compartment; and the heat-exchanging water cushions (33) are arranged in the cargo container (12).

Description

Green and environmentally friendly electric refrigerated truck and refrigeration method

[0001] The present invention relates to a cold chain refrigeration device, and more particularly to a green environmental protection electric refrigeration vehicle and a refrigeration method.

Background technique

[0002] At present, the transportation and storage of goods usually have certain temperature requirements, some goods require lower freezing temperatures (for example: frozen products), and some goods require refrigerating temperature (for example: vegetables, fruits, etc.) . In the prior art, cold chain transportation involves transport vehicles and cold storage, and equipment for cooling goods during transportation or storage is usually air-cooled or directly cooled, for example: taking cargo transportation as an example, usually used in transportation vehicles. For transportation, the transport vehicle is equipped with a cargo box having a refrigeration system, and the cold generated by the evaporator in the refrigeration system cools the inside of the cargo box by means of cold air or direct cooling. However, in actual use, the temperature inside the cargo box is unevenly distributed; at the same time, in the cold chain transportation process, the refrigerated articles are also easily damaged by vibration.

technical problem

[0003] How to design a green and environmentally-friendly electric refrigerated truck with good refrigeration effect and high storage safety is a technical problem to be solved by the present invention.

Problem solution

Technical solution

[0004] The technical problem to be solved by the present invention is to provide a green environmental protection electric refrigerating vehicle and a cooling method, thereby improving the cooling effect and storage safety of the green environmental protection electric refrigerating vehicle.

[0005] The technical solution provided by the present invention is a green environmentally friendly electric refrigerated vehicle, including an electric vehicle, the electric vehicle is provided with a battery pack, a machine compartment and a cargo box, and further includes a water cooling module and a semiconductor refrigerator, The water cooling module comprises a main water tank, a first water pump, a multi-layer heat exchange water pad and an air pump, wherein the heat exchange water pad is distributed with a plurality of supporting air bags, the heat exchange water pad has a water inlet and a water return port, and the water inlet The water inlet is connected to the first water pump through a corresponding electromagnetic valve, the water return port is connected to the main water tank through a corresponding electromagnetic valve, the first water pump is connected to the main water tank, and the lower part of the heat exchange water pad a plurality of air springs are disposed, and the air spring and the supporting air bag are respectively connected to the air pump through a corresponding electromagnetic valve, and the plurality of layers The heat exchange water mats are stacked together; the cold end portion of the semiconductor refrigerator is sealed and embedded in the main water tank, and the semiconductor refrigerator, the main water tank, the first water pump, and the air pump are located at In the machine compartment, the heat exchange water pad is located in the cargo box; the battery pack is also used to supply power to the semiconductor refrigerator, the water pump, and the air pump.

[0006] The present invention also provides a cooling method for a green environmentally friendly electric refrigerated vehicle, which adopts the above-mentioned green environmental protection electric refrigerated vehicle; the cooling method is:

[0007] Step 1. The air pump is started to inflate the supporting air bag and the air spring to form a storage space between the adjacent two layers of heat exchange water pads;

[0008] Step 2. The first water pump is started, and the water cooled by the semiconductor refrigerator in the main water tank is sent to the heat exchange water pad for circulation.

[0009] Step 3: placing the item to be transported between adjacent two layers of heat exchange water pads, and adjusting the air pressure of the air spring between the adjacent two layers of heat exchange water pads, so that the articles are sandwiched between the two layers Heat exchange between water pads.

Advantageous effects of the invention

Beneficial effect

[0010] The green environmental protection electric refrigerating vehicle and the cooling method provided by the invention provide power for the refrigeration unit and the water cooling module by sharing the battery pack of the electric vehicle itself, and use the water cooling module to cool the articles in the electric vehicle, the semiconductor refrigerator After the water in the main water tank is cooled, the water in the main water tank is sent to the heat exchange water pads of each layer via the first water pump, and the adjacent two layers of heat exchange water pads are directly attached to the articles for cooling, which can effectively improve the cooling. Efficiency, the same, the water circulation in the heat transfer water pad makes the water temperature distribution in the heat transfer water pad evenly distributed, and improves the cooling effect; in addition, since the articles are placed between the two layers of heat transfer water mats, during transportation It can effectively reduce damage caused by collision and improve storage security. The heat transfer water cushion itself supports the airbag to support the water, and on the other hand, it is convenient for the water to flow in the heat exchange water cushion, on the other hand, the heat exchange water cushion ensures sufficient support force for the articles placed thereon, and the two layers of heat exchange The air spring between the water pads can control the distance between the two layers of heat exchange water pads, so that the upper heat exchange water pad can be placed against the article to obtain a more cooling effect.

Brief description of the drawing

DRAWINGS

1 is a schematic structural view of an embodiment of a green environmental protection electric refrigerating truck according to the present invention; 2 is a schematic structural view 1 of a heat exchange water pad in an embodiment of a green environmental protection electric refrigerated truck according to the present invention;

3 is a schematic structural view 2 of a heat exchange water pad in an embodiment of a green environmental protection electric refrigerated truck according to the present invention;

4 is a schematic structural view of a water bladder in an embodiment of a green environmental protection electric refrigerated truck according to the present invention;

[0015] FIG. 5 is a schematic diagram of a dehumidification module in an embodiment of a green environmental protection electric refrigerated truck according to the present invention;

6 is a schematic diagram of a water cooling module in an embodiment of a green environmental protection electric refrigerated truck according to the present invention;

7 is a front view of a membrane type liquid dehumidifier in an embodiment of a green environmental protection electric refrigerated truck according to the present invention;

8 is a side view of a membrane type liquid dehumidifier in an embodiment of a green environmental protection electric refrigerated truck according to the present invention;

9 is a partially enlarged schematic view of a region A in FIG. 8.

BEST MODE FOR CARRYING OUT THE INVENTION

[0020] As shown in FIG. 1, FIG. 2, FIG. 5 and FIG. 6, the green electric refrigerating truck of the present embodiment includes an electric vehicle 1, and the electric vehicle 1 is provided with a battery pack for supplying electric energy to the electric vehicle 1. The electric vehicle 1 is provided with an organic storage 11 and a cargo box 12, and further includes a semiconductor refrigerator 2 and a water cooling module 3, the water cooling module 3 including a main water tank 31, a first water pump 32, a multi-layer heat exchange water pad 33, and a gas pump (not shown), a plurality of supporting airbags 35 are disposed in the heat exchange water pad 33, and the heat exchange water pad 33 has a water inlet (not labeled) and a water return port (not labeled), and the water inlet passes correspondingly The solenoid valve is connected to the first water pump 32, and the water return port is connected to the main water tank 31 through a corresponding electromagnetic valve. The first water pump 32 is connected to the main water tank 31, and the heat exchange water pad 33 is connected. a lower portion of the air spring 36 is disposed, and the air spring 36 and the support air bag 35 are respectively connected to the air pump through a corresponding electromagnetic valve, and the plurality of heat exchange water pads 33 are stacked together; the semiconductor refrigeration Cold end seal of the device 2 Embedded in the main water tank 31, the semiconductor refrigerator 2, the main water tank 31, the first water pump 32, and the air pump are located in the machine compartment 11, and the heat exchange water pad 33 is located in the The battery pack 12 is also used to supply power to the semiconductor refrigerator 2, the water pump 32, and the air pump.

[0021] Specifically, the green electric refrigerating truck of the present embodiment shares the battery pack of the electric vehicle 1 to supply power, and the cold end portion 21 of the semiconductor refrigerator 2 generates a cooling amount to cool the refrigerant solution in the main water tank 31. The refrigerant solution in the main water tank 31 is injected into the different heat exchange water pads 33 via the first water pump 32, and the refrigerant solution is heat-exchanged in the heat exchange water pad 33 to cool the articles in the cargo box 12 and then flow back to the main water tank. 31; and the supporting air bag 35 in the heat exchange water pad 33 will inflate the inner cavity of the heat exchange water pad 33 to facilitate the flow of the cooling solution, and the supporting air bag 35 can support the heat transfer water pad 33. Item, and air bomb The spring 36 supports the adjacent two heat exchange water pads 33 to be spaced apart to form a storage space between the two adjacent heat exchange water pads 33, and the articles are placed between the two heat exchange water pads 33, and By controlling the air pressure value of the air spring 36, the height of the air spring 36 is adjusted to adjust the distance between the two layers of heat exchange water pads 33, so that the upper heat exchange water pad 33 can be placed against the article, so that the articles are evenly arranged. Directly cold, for a more cooling effect. The cooling solution selects different liquid carrier cooling medium according to the storage temperature of the articles stored in the container 12, for example: water or a refrigerant such as a refrigerant, and the refrigeration solution contained in the main water tank 31 in this embodiment. No restrictions.

Further, for more convenient use, providing versatility and convenience, as shown in FIGS. 3 to 4, each of the heat exchange water pads 33 includes a plurality of mutually independent water bladders 331, each of the water bladders 331 The support air bag 35 and the air spring 36 are disposed, and the plurality of water bladders 331 are sequentially and fixedly connected together. The two side walls of the water bladder 331 are provided with a support air column 332, and the support air column 332 It is connected to the air pump through a corresponding solenoid valve. Specifically, in actual use, according to the quantity of the stored items, the size of the heat exchange water pad 33 is adjusted, that is, the support air bag 35 and the air spring 36 of the water bag 331 are inflated according to the storage requirements, without replacing the whole The hot water pad 33 is filled with a gas-filled refrigerant solution, and on the one hand, the heat exchange water pad 33 can be more flexibly used to provide a specific amount of cooling capacity to the article, and on the other hand, the energy consumption can be effectively reduced. Preferably, in order to make the temperature distribution of the heat exchange water pad 33 uniform, a cooling effect is provided, one side of the water bag 331 is a water inlet channel 3311, and the other side is a water return channel 3312, and the water bag 331 is The middle portion is a heat transfer portion 3313; the water inlet passage 3311 has the water inlet, the return water passage 3312 has the water return port, and the water inlet passage 3311 and the return water passage 3312 respectively communicate with the heat transfer A plurality of water permeable slits 3310 are formed between the portions 3313. The refrigerant solution output from the first water pump 32 enters the heat transfer portion 3313 through the water inlet passage 3311 for heat exchange, and the water in the heat transfer portion 3313 undergoes heat exchange, and then flows back to the main water tank 31 through the return water passage 3312 to realize water. The water permeable slit 3310 can effectively make the water entering the heat transfer portion 3313 evenly distributed in various portions. Preferably, the plurality of the water permeable slits 3310 gradually become longer along the flow direction of the water flow, due to the water inlet of the water inlet passage 3311. The water pressure at the place is large, and the water pressure will decrease as the water flows, and the gradual distribution of the water permeable slit 3310 can more uniformly distribute the water flowing into the different portions of the heat transfer portion 331 3 so that the heat transfer portion 3313 The temperature distribution is uniform. In order to improve the temperature distribution uniformity, the support airbag 35 has a strip-shaped structure as a whole and is disposed between the water inlet passage 3311 and the return water passage 3312, and the two sides of the support airbag 35 are respectively formed. There are multiple turbulent gas teeth 351, phase A turbulent flow passage connecting the water inlet passage 3311 and the return water passage 3312 is formed between two adjacent support airbags 35, and the heat transfer portion 3313 can be more evenly distributed under the action of the turbulent flow passage. The water amount distribution of each portion ensures temperature uniformity at each position, and the turbulent gas tooth 351 can buffer the water flow so that the water flow can be sufficiently cooled by the heat transfer portion 3313. Preferably, the air column supporting air bag 35 is fixed on the inner wall of the water bag 331, and the turbulent air tooth 351 is suspended in the water bag 331 to further adjust the humidity in the container 12 to meet special items. Storage requirements, as shown in FIG. 5, FIG. 7, FIG. 8 and FIG. 9, an auxiliary water tank 34 is connected to the hot end portion 22 of the semiconductor refrigerator 2; and the green electric refrigerating truck further includes a dehumidification module, The dehumidification module includes two membrane liquid dehumidifiers 23 and 24, an intermediate heat exchanger 25, a second water pump 27, and two solution pumps 26, the intermediate heat exchanger 25 including a first heat exchange channel that is heat exchanged with each other (not Marking) and a second heat exchange passage (not labeled); the membrane type liquid dehumidifiers 23 and 24 include a heat dissipating water pipe 251, a protective film 252, and a dehumidifying film 253, and the heat dissipating water pipe 251 is wrapped with the protective film 252 The protective film 252 is wrapped with the dehumidification film 253, and the solution channel 250 is formed between the protection film 252 and the dehumidification film 253; the heat dissipation water pipe of the membrane type liquid dehumidifier 24 passes through the corresponding The second water pump 27 is connected to the main water tank 31, The heat pipe of the liquid dehumidifier 23 is connected to the auxiliary water tank 34 through the corresponding second water pump 27; the two ports of the solution channel 250 of the membrane type liquid dehumidifier 24 and the first heat exchange channel respectively The inlet is connected to the outlet of the second heat exchange passage, and the two ports of the solution passage 250 of the membrane type liquid dehumidifier 23 are respectively connected to the outlet of the first heat exchange passage and the inlet of the second heat exchange passage Connecting; the solution pump 26 is disposed on the first heat exchange channel and the second heat exchange channel, respectively. Specifically, in actual use, the heat dissipation pipes of the two membrane type liquid dehumidifiers 23 and 24 are respectively connected to the auxiliary water tank 34 and the main water tank 31 to form a refrigerant flow circuit, and the two membrane type liquid dehumidifiers 23 and 24 The solution channel 250 is used for solution flow, and the protective film 252 contacts the insulating solution with the surface of the heat-dissipating water pipe 251 to protect the heat-dissipating water pipe 251 from corrosion of the solution, and the dehumidifying film 253 is added to ensure that the water vapor in the air can freely enter and exit the solution channel. 250, and the solution cannot pass through the dehumidification film 253. The heat-dissipating water pipe 251 is used for heat exchange of the refrigerant, and on the other hand, the heat-dissipating water pipe 251 exchanges heat with the solution in the external solution channel 250 by the refrigerant flowing inside thereof to cool or heat the solution in the solution channel 250 as needed. In order to achieve the function of adjusting the humidity of the environment, and because the refrigerant and the solution can exchange heat quickly, the humidity adjustment effect can be effectively improved. The membrane liquid dehumidifiers 23 and 24 are integrated with a solution dehumidification function in the same manner as the heat exchange of the refrigerant. Preferably, the heat dissipating water pipe 251 is further provided with fins 254, and the fins 254 are provided with a plurality of tubes. a hole 255, a heat dissipating water pipe 251 is disposed in the expansion pipe hole 255, and the protective film 252 and the dehumidifying film 253 are also located in the expansion pipe hole 255, and an edge of the expansion pipe hole 255 is provided for The notch 256 through which the solution flow channel 20 passes, specifically, in order to ensure smooth flow of the solution in the solution channel 250, the expansion hole 255 of the fin 254 is further provided with a notch 256, and the notch 256 forms a solution channel 250. The space that passes through, after the expansion pipe 251 is installed in the expansion hole 255, the solution in the solution passage 250 can still flow smoothly through the notch 256. Among them, the membrane type liquid dehumidifiers 23 and 24 are based on a dissolution-diffusion mechanism, mainly utilizing the concentration of the solution to achieve dehumidification and humidification, and the dehumidification membrane 253 can be made of an organic polymer polymer membrane, an inorganic membrane, a liquid membrane, etc. having water vapor. The high-temperature and low-temperature refrigerant generated in the semiconductor refrigerator 2 is used for the function of the film, and the solution of the solution channel 250 in the membrane type liquid dehumidifiers 23 and 24 flowing into the low-temperature refrigerant is used for absorbing moisture for dehumidification, and for flowing into the high temperature. A solution of the solution passage 250 in the membrane liquid dehumidifiers 23 and 24 of the refrigerant is used to release moisture for humidification. In the actual use process, usually the humidity in the cargo box is too large to cause frost, and the cooled membrane liquid dehumidifiers 23 and 24 are disposed in the cargo box, and the heated membrane liquid is dehumidified. The separators 23 and 24, the intermediate heat exchanger 25, the second water pump 27, and the two solution pumps 26 are disposed in the machine compartment.

[0024] The present invention also provides a cooling method for a green environmentally friendly electric refrigerated vehicle, which adopts the above-mentioned green environmental protection electric refrigerated vehicle; the cooling method is:

[0025] Step 1. The air pump is started to inflate the supporting air bag and the air spring to form a storage space between the adjacent two layers of heat exchange water pads;

[0026] Step 2. The first water pump is started, and the water cooled by the semiconductor refrigerator in the main water tank is sent to the heat exchange water pad for circulation.

[0027] Step 3: placing the item to be transported between the adjacent two layers of heat exchange water pads, and adjusting the air pressure of the air spring between the adjacent two layers of heat exchange water pads, so that the articles are sandwiched between the two layers Heat exchange between water pads.

Claims

Claim

[Claim 1] A green environmentally-friendly electric refrigerating vehicle, comprising an electric vehicle, wherein the electric vehicle is provided with a battery pack, a machine compartment, and a cargo box, and further comprising a water-cooling module and a semiconductor refrigerator, the water-cooling mold The group includes a main water tank, a first water pump, a multi-layer heat exchange water pad and an air pump, wherein the heat exchange water pad is distributed with a plurality of supporting air bags, the heat exchange water pad has a water inlet and a water return, and the water inlet passes a corresponding solenoid valve is connected to the first water pump, the water return port is connected to the main water tank through a corresponding electromagnetic valve, the first water pump is connected to the main water tank, and a lower portion of the heat exchange water pad is provided a plurality of air springs, wherein the air spring and the supporting air bag are respectively connected to the air pump through a corresponding electromagnetic valve, and the plurality of heat exchange water pads are stacked together; the cold end portion of the semiconductor refrigerator is sealed and embedded In the main water tank, the semiconductor refrigerator, the main water tank, the first water pump and the air pump are located in the machine compartment, and the heat exchange water pad is located in the cargo box; The battery pack is also used to supply power to the semiconductor cooler, water pump, and air pump.

2. The environmentally-friendly electric refrigerated truck according to claim 1, wherein each of said heat exchange water pads comprises a plurality of mutually independent water bladders, each of said water bladders being provided with said support airbag and said In the air spring, a plurality of the water bladders are sequentially fixedly connected together, and two side walls of the water bladder are provided with a supporting air column, and the supporting air column is connected to the air pump through a corresponding electromagnetic valve.

The environmentally-friendly electric refrigerated truck according to claim 2, wherein one side of the water bladder is a water inlet passage, and the other side is a water return passage, and the middle portion of the water bladder is heat transfer. The water inlet channel has the water inlet, the water return channel has the water return port, and the water inlet channel and the water return channel respectively form a plurality of water permeable slits with the heat transfer portion.

The environmentally-friendly electric refrigerating truck according to claim 3, wherein the plurality of water-permeable slits gradually become longer in the flow direction of the water flow.

The green electric refrigerating truck according to claim 3, wherein the supporting airbag has a strip-shaped structure as a whole and is disposed between the water inlet passage and the water return passage, and the supporting airbag a plurality of turbulent gas teeth are formed on both sides, and two adjacent support gases are respectively A turbulent flow path connecting the water inlet passage and the return water passage is formed between the bladders.

The environmentally-friendly electric refrigerated truck according to claim 5, wherein the support airbag is fixed to an inner wall of the water bladder, and the turbulent air tooth is suspended in the water bladder.

The green electric refrigerating truck according to claim 1 , wherein an auxiliary water tank is disposed on a hot end of the semiconductor refrigerator; the green electric refrigerating truck further includes a dehumidification module, and the dehumidification module The invention comprises two membrane liquid dehumidifiers, an intermediate heat exchanger, two solution pumps and two second water pumps, wherein the intermediate heat exchanger comprises a first heat exchange channel and a second heat exchange channel which are mutually heat exchanged; The membrane type liquid dehumidifier includes a heat dissipating water pipe, a protective film and a dehumidifying film, the heat dissipating water pipe is wrapped with the protective film, the protective film is wrapped with the dehumidifying film, the protective film and the dehumidification film Forming a solution passage between the membranes; one of the heat dissipation water pipes is connected to the main water tank through a corresponding second water pump, and the other heat dissipation water pipe is connected to the auxiliary water tank through a corresponding second water pump; Two ports of the solution channel are respectively connected to the inlet of the first heat exchange channel and the outlet of the second heat exchange channel, and the two ports of the other solution channel are respectively The outlet of the first heat exchange channel is connected to the inlet of the second heat exchange channel; the solution pump is disposed on the first heat exchange channel and the second heat exchange channel, respectively; A liquid dehumidifier is located in the cargo box, and another of the membrane liquid dehumidifier, the intermediate heat exchanger, two of the second water pumps, and two of the solution pumps are located in the machine compartment.

The green electric refrigerating truck according to claim 7, wherein the heat dissipating water pipe is further provided with a fin, the fin is provided with an expansion pipe hole, and the heat dissipating water pipe is disposed at the expansion pipe In the hole, the protective film and the dehumidification film are located in the expansion tube hole, and an edge of the expansion tube hole is provided with a gap for the passage of the solution passage.

A cooling method for a green environmentally-friendly electric refrigerating vehicle, characterized in that the environmentally-friendly electric refrigerating truck according to any one of claims 1-8 is used; the cooling method is: Step 1, the air pump is started, and the airbag is supported Inflating with an air spring to form a storage space between adjacent two layers of heat exchange water pads;

Step 2: The first water pump is started, and the water cooled by the semiconductor refrigerator in the main water tank is sent to the heat exchange water pad for circulation; Step 3: Put the items to be transported into the adjacent two layers of heat exchange water mats, and adjust the air pressure of the air spring between the adjacent two layers of heat exchange water pads, so that the articles are sandwiched between the two layers of heat exchange water. Between the mats.