Anti-frostbite system and anti-freezing measure for transportation and maintenance of energy storage equipment in low-temperature region

Abstract

The invention discloses an anti-frostbite system and an anti-freezing measure for transportation and maintenance of energy storage equipment in a low-temperature area, and relates to the field of electrochemical energy storage. A first heating air blower is arranged on a transport vehicle, a second heating air blower is arranged in a maintenance area, and an air inlet is formed in the lower portion of one end of a cabinet body; the first heating air blower is provided with a first corrugated pipe matched with the air inlet, the second heating air blower is provided with a second corrugated pipe matched with the air inlet, and the air inlet and the air outlet are formed in the loading cabinet body and matched with the heating air blowers arranged on the energy storage equipment transport vehicle for constant temperature; the high-power heating air blower is arranged in the maintenance area to be connected with the multiple energy storage devices for centralized heat supply, it is ensured that the energy storage devices are not affected by the low temperature in the shutdown maintenance period, and therefore constant-temperature protection is effectively conducted on the energy storage devices, and the service life of the energy storage devices is prolonged. And damage caused by environmental influence during transportation or shutdown maintenance in a low-temperature region is prevented.

Description

Technical Field

[0001] The invention relates to a system for transporting and repairing anti-freezing damage of energy storage equipment in low-temperature areas and anti-freezing measures, and relates to the field of electrochemical energy storage. Background Art

[0002] Currently, electrochemical energy storage products are basically presented in the form of containers or outdoor cabinets. In order to ensure that the batteries installed inside operate within a constant temperature range, containers and outdoor cabinets are generally equipped with a certain thickness of insulation layer, and air conditioners or chillers are also installed to cool the batteries when the temperature is high and heat them when the temperature is low to ensure constant temperature.

[0003] The constant temperature measures used will generally not cause major problems when the energy storage system is operating normally. However, in cold areas, the energy storage system cannot be powered on during the transportation of energy storage products and the installation phase, and its air conditioning cannot generate heat. If it is in a low temperature environment for a long time, even containers and outdoor cabinets with insulation layers will reach temperature equilibrium with the external environment, and the battery will be frozen when it is below -20°C. When the system is shut down for maintenance, the system may not be powered on and the heating equipment may not work properly. In particular, some purely off-grid systems do not have grid power supply. Once shut down, the equipment will be in low temperature. If timely measures are not taken, the battery will soon be frozen and cause losses. At the same time, equipment that is not resistant to low temperatures, such as the control panel, will also be frozen. Summary of the invention

[0004] The purpose of the present invention is to provide a frostbite prevention system and antifreeze measures for the transportation and maintenance of energy storage equipment in low-temperature areas in view of the defects or shortcomings in the prior art. The system provides an air inlet and an air outlet on the loading cabinet of the energy storage equipment, and cooperates with a heating blower provided on the energy storage equipment transportation vehicle to perform convection constant temperature, so as to ensure that the energy storage equipment will not be affected by the low temperature and cause frostbite during transportation. A high-power heating blower is provided in the maintenance area to connect multiple energy storage equipment through bellows for centralized heating, so as to ensure that the energy storage equipment is not affected by the low temperature during shutdown and maintenance, thereby effectively performing constant temperature protection on the energy storage equipment to prevent damage due to environmental influences during transportation or shutdown and maintenance in low-temperature areas.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a system for transporting, repairing and preventing frostbite of energy storage equipment in low-temperature areas, which includes a cabinet 1, a first heating blower 2, a second heating blower 3, and a transport vehicle 5. The first heating blower 2 is arranged on the transport vehicle 5, and the second heating blower 3 is arranged in the maintenance area 9. The cabinet 1 is provided with an air inlet 11 at the lower part of one end, and an air outlet 12 at the upper part of the other end. The first heating blower 2 is provided with a first bellows 4 that matches the air inlet 11, and the second heating blower 3 is provided with a second bellows 6 that matches the air inlet 11.

[0006] Furthermore, a one-way sealing plate is provided inside the air inlet 11 , and a one-way sealing plate is provided outside the air outlet 12 .

[0007] Furthermore, the outer layers of the first corrugated tube 4 and the second corrugated tube 6 are provided with a heat-insulating cotton layer 7 .

[0008] Furthermore, the second corrugated pipe 6 includes a long air duct and a plurality of bent short pipes connected thereto, the long air duct has a short pipe connected to the second heating blower 2 , and the bent short pipe matches the air inlet 11 .

[0009] Furthermore, the transport vehicle 5 is also provided with a diesel generator 8 , which is electrically connected to the first heating blower 2 .

[0010] The working principle of the present invention is as follows: during the transportation of the energy storage equipment, the diesel generator 8 generates electricity to drive the first heating blower 2 to blow out hot air. The hot air enters the cabinet 1 through the first bellows 4, and the colder air in the cabinet 1 is discharged from the air outlet 11. The air in the cabinet 1 remains in a circulating state, which effectively prevents the battery cell temperature from being too low during transportation and causing battery damage. When the energy storage equipment is transported to the construction site, the diesel generator 8 and the first heating blower 2 are placed together on one side until the construction is completed to ensure that the battery cells remain at a constant temperature during the construction process. After the construction is completed, the diesel generator 8 and the first heating blower 2 are moved back to the transport vehicle 5 and fixed. If there is a temporary power grid at the construction site, the temporary power grid is used to supply the first heating blower 2. The machine 2 is powered to ensure that hot air is continuously supplied to the cabinet 1 for 24 hours; and when the energy storage equipment needs to be shut down for maintenance, after being transported to the maintenance area 9, the second bellows 6 is connected to the air inlet 11 on the cabinet 1, and the second heating blower 3 is started to provide hot air for the cabinet 1. At this time, the second heating blower 3 can provide hot air to multiple cabinets 1 at the same time. The second heating blower 3 provides electricity through the power grid of the maintenance area 9, or provides electricity through photovoltaic equipment, or provides electricity through wind power generation equipment. By adopting the constant temperature mode of on-board heating and unified heating in place, it can effectively provide continuous heat for the energy storage equipment to prevent the battery from being damaged by frostbite due to low temperature in cold and low-temperature areas, thereby ensuring the normal and effective transportation and storage of the energy storage equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 It is a structural schematic diagram of the cabinet 1 in the present invention;

[0014] Figure 3 It is a schematic structural diagram of the first bellows 4 in the present invention;

[0015] Figure 4 It is a schematic diagram of the layout of the energy storage device of the present invention for centralized heating when photovoltaic power supply is used in the maintenance area 9;

[0016] Figure 5 yes Figure 4 A second angle view of the .

[0017] Explanation of the accompanying drawings: cabinet 1, first heating blower 2, second heating blower 3, first bellows 4, transport vehicle 5, second bellows 6, thermal insulation cotton layer 7, diesel generator 8, maintenance area 9, air inlet 11, air outlet 12. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 5 As shown, the technical solution adopted in this specific implementation is: a system for transporting, repairing and preventing frostbite of energy storage equipment in low-temperature areas, which includes a cabinet 1, a first heating blower 2, a second heating blower 3, and a transport vehicle 5. The first heating blower 2 is arranged on the transport vehicle 5, and the second heating blower 3 is arranged in the maintenance area 9. The cabinet 1 is provided with an air inlet 11 at the lower part of one end, and an air outlet 12 at the upper part of the other end. The first heating blower 2 is provided with a first bellows 4 that matches the air inlet 11, and the second heating blower 3 is provided with a second bellows 6 that matches the air inlet 11. In this embodiment, three scenarios of energy storage equipment are provided. Antifreeze method, one is the antifreeze solution during transportation with the vehicle, a first heating blower is installed on the transport vehicle, and the first heating blower is connected to the cabinet through the first bellows, blowing hot air to keep the energy storage equipment at a constant temperature. It should be noted that the cabinet is a container or an outdoor cabinet, which is selected and used according to actual production needs, but air inlets and air outlets are required to be set on the cabinet, wherein the air inlet is set at the lower part of one end of the cabinet, that is, the air inlet is set at the lower side of the battery compartment, and the air outlet is set above the battery compartment and the electrical compartment on the opposite side of the air inlet. Hot air blown in from the bottom can be more evenly diffused in the cabinet, and more effective convection constant temperature is achieved;

[0019] Second, to prevent freezing during the installation of energy storage equipment, if there is no power supply at the installation site, the original vehicle power supply equipment will be used to supply power and heat the transported energy storage equipment. If there is power supply at the installation site, such as photovoltaic or grid power, the power energy of the site will be directly used for power supply and heating to keep the energy storage equipment at a constant temperature.

[0020] Third, if the energy storage device fails and needs to be repaired, the device is unloaded to the maintenance area. The maintenance area is equipped with a second heating blower, and the second heating blower is a high-power device, on which a second bellows is arranged. The second bellows can be connected to multiple cabinets. When the energy storage device to be repaired is placed, the second heating blower is turned on to heat all the equipment to be repaired. It can be understood that the power supply of the maintenance area 9 is selected according to the specific power supply conditions of the area. If it is convenient to use photovoltaic power supply, photovoltaic power supply is used to power the second heating blower, or wind power supply, or grid power supply, and the power supply form can be diversified to obtain the most economical power supply method;

[0021] In this embodiment, a vehicle-mounted constant temperature solution is provided. In another embodiment, the radiator of the transport vehicle can be modified, and an air duct can be set on the radiator. A common blower is used to connect the network pipe, and then connected to the cabinet. The heat generated by the vehicle itself during operation is directly used for heating and constant temperature. This solution is more suitable for non-extreme climate areas, and the specific transport constant temperature and antifreeze solution is selected according to actual usage needs.

[0022] To be more specific, a one-way sealing plate is provided inside the air inlet 11, and a one-way sealing plate is provided outside the air outlet 12. During the transportation or storage of the energy storage device, such as in a normal temperature area, no heating is provided, and the one-way sealing plates of the air inlet and the air outlet are not opened. When entering a low-temperature cold area and turning on the heating blower, the one-way sealing plates at the two locations will automatically open under the action of pressure, thereby achieving air circulation and improving heating efficiency.

[0023] More specifically, the outer layers of the first corrugated pipe 4 and the second corrugated pipe 6 are provided with a thermal insulation cotton layer 7. The thermal insulation cotton layer provided on the outer layer of the corrugated pipe can effectively insulate the corrugated pipe, especially in the centralized heating of the maintenance area. Since the pipeline is long, the corrugated pipe needs to be insulated to ensure the heating effect.

[0024] To be more specific, the second corrugated pipe 6 includes a long air duct and a plurality of bent short pipes connected thereto, the long air duct has a short pipe connected to the second heating blower 2, and the bent short pipe matches the air inlet 11. In this embodiment, the maintenance area has fixed maintenance stations for energy storage equipment, the long air duct is the main air duct, and the bent short pipes are branch pipes, and all energy storage equipment are connected to the long air duct for heating, thereby realizing centralized heating.

[0025] To be more specific, the transport vehicle 5 is also provided with a diesel generator 8, which is electrically connected to the first heating blower 2. In this embodiment, a vehicle-mounted power supply method is illustrated, that is, the first heating blower is powered by a diesel generator. The diesel generator is a detachable structure. When the energy storage equipment is installed, if there is no temporary power supply at the site, the diesel generator can continue to be used to power the blower.

[0026] This embodiment also provides an antifreeze measure for the antifreeze damage system of energy storage equipment transportation and maintenance in low-temperature areas, which includes the following solutions:

[0027] Solution 1, antifreeze during transportation, the diesel generator 8 equipped on the transport vehicle 5 supplies power to the first heating blower 2, blowing hot air to the cabinet 1 to ensure that the temperature inside the cabinet 1 is not lower than the storage temperature; in this solution, the first heating blower and the diesel generator are both detachable structures. When transported to the installation site, if the site lacks power supply equipment and cannot immediately heat and maintain a constant temperature for the energy storage device, the diesel generator and the first heating blower can be disassembled and moved to the installation location for temporary use. After the installation is completed, they can be moved back to the transport vehicle and re-fixed; or the first heating blower can be directly used in conjunction with the energy storage device, and the transport vehicle can be re-equipped with new equipment for use when returning;

[0028] Solution 2: Antifreeze during construction and installation. The first heating blower 2 is powered by a diesel generator 8 or photovoltaic or grid electricity to heat the air and blow hot air into the cabinet 1 to ensure that the temperature inside the cabinet 1 is not lower than the storage temperature. In this solution, if there is no temporary power supply at the energy storage device installation site, the diesel generator on the vehicle is used for power supply. If there is photovoltaic or grid power supply at the site, it can be connected to the heating blower for power supply.

[0029] Solution 3, maintenance and anti-freezing, in the maintenance area 9, the second heating blower 3 is powered by photovoltaic or wind power generation or the power grid to heat the air, and hot air is provided to multiple groups of cabinets 1 placed in parallel at the same time to ensure that the energy storage equipment can be kept at a constant temperature 24 hours a day during maintenance, and prevent the energy storage equipment from being damaged due to excessively low temperature during maintenance; in this solution, since the equipment needs to be shut down for maintenance, the internal air conditioner cannot be powered if there is no electricity, so a second heating blower is set in the maintenance area for heating and constant temperature, and the power supply method is selected according to the power supply situation of the place to ensure that the energy storage equipment can be maintained under 24 heating conditions and the battery cells are not damaged by low temperature.

[0030] After adopting the above technical scheme, the beneficial effects of the present invention are as follows: effectively solving the problem of frostbite on batteries and low-temperature-sensitive equipment in the energy storage system during transportation of energy storage equipment in a low-temperature environment; solving the problem of frostbite on batteries and low-temperature-sensitive equipment in the energy storage system when the energy storage equipment is temporarily parked in a low-temperature environment during construction and installation; solving the problem of frostbite on batteries and low-temperature-sensitive equipment in the energy storage system when the energy storage equipment is in a low-temperature environment during shutdown for inspection or maintenance.

[0031] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A system for transporting and repairing energy storage equipment in low-temperature areas to prevent frostbite, characterized in that: It comprises a cabinet (1), a first heating blower (2), a second heating blower (3), and a transport vehicle (5); the first heating blower (2) is arranged on the transport vehicle (5), and the second heating blower (3) is arranged in a maintenance area (9); an air inlet (11) is arranged at the lower part of one end of the cabinet (1), and an air outlet (12) is arranged at the upper part of the other end; a first corrugated pipe (4) is arranged on the first heating blower (2) to match the air inlet (11), and a second corrugated pipe (6) is arranged on the second heating blower (3) to match the air inlet (11).

2. According to claim 1, a system for transporting and repairing energy storage equipment in low-temperature areas to prevent frostbite, characterized in that: A one-way sealing plate is arranged inside the air inlet (11), and a one-way sealing plate is arranged outside the air outlet (12).

3. According to claim 1, a system for transporting and repairing energy storage equipment in low-temperature areas to prevent frostbite, characterized in that: The outer layers of the first corrugated pipe (4) and the second corrugated pipe (6) are provided with a heat-insulating cotton layer (7).

4. According to claim 1, a system for transporting and repairing energy storage equipment in low-temperature areas to prevent frostbite, characterized in that: The second corrugated pipe (6) comprises a long air duct and a plurality of bent short pipes connected thereto, wherein the long air duct has a short pipe connected to the second heating blower (2), and the bent short pipe matches the air inlet (11).

5. According to claim 1, a system for transporting, repairing and preventing frostbite of energy storage equipment in low temperature areas is characterized by: The transport vehicle (5) is also provided with a diesel generator (8), and the diesel generator (8) is electrically connected to the first heating blower (2). 6.An antifreeze measure for the antifreeze damage system for transportation and maintenance of energy storage equipment in low temperature areas, characterized by: It includes the following programs: Solution 1, antifreeze during transportation, the diesel generator (8) equipped on the transport vehicle (5) supplies power to the first heating blower (2) to blow hot air to the cabinet (1) to ensure that the temperature inside the cabinet (1) is not lower than the storage temperature; Solution 2, antifreeze installation, using diesel generator (8) or photovoltaic or grid electricity to power the first heating blower (2) to heat the air, blowing hot air into the cabinet (1) to ensure that the temperature inside the cabinet (1) is not lower than the storage temperature; Solution 3, maintenance and antifreeze, in the maintenance area (9), the second heating blower (3) is powered by photovoltaic or wind power generation or power from the power grid to heat the air, and hot air is simultaneously provided to multiple groups of cabinets (1) placed in parallel, so as to ensure that the energy storage equipment can maintain a constant temperature for (24) hours during maintenance, thereby preventing the energy storage equipment from being damaged due to excessively low temperature during maintenance.

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