CN-121983710-A - Rapid heating device for battery compartment of submersible based on vortex tube heating and operation method

Abstract

A rapid heating device and an operation method of a submersible battery compartment based on vortex tube heating comprise a vortex tube heater, wherein a compressed air inlet is formed in the top of the vortex tube heater, a hot air flow guide cavity and a throttle valve are arranged at one end of the vortex tube heater, the throttle valve is used for hot air flow adjustment, a cold air outlet is formed in the other end of the vortex tube heater, a hot air outlet is arranged at the outlet of the throttle valve and is connected with the submersible annular rib cylindrical pressure-resistant battery compartment, the rapid heating device further comprises a high-pressure air source which is connected with the compressed air inlet of the vortex tube heater through a high-pressure air pipe, at least one temperature sensor which is arranged in the submersible annular rib cylindrical pressure-resistant battery compartment, and a control unit which is connected with the temperature detection unit and an electric proportional valve and is used for controlling the electric proportional valve according to a temperature signal, so that the submersible annular rib cylindrical pressure-resistant battery compartment is high in heating speed, good in temperature uniformity, low in energy consumption and high in safety.

Inventors

• MA LING
• HUANG HUAN
• GU HUA

Assignees

• 中国船舶科学研究中心

Dates

Publication Date

20260505

Application Date

20260209

Claims (10)

1. 1. The rapid heating device for the submersible battery compartment based on vortex tube heating is characterized by comprising a vortex tube heater (1), wherein a compressed air inlet (11) is formed in the top of the vortex tube heater (1), a hot air flow guiding cavity (12) and a throttle valve (13) are formed in one end of the vortex tube heater (1), the throttle valve (13) is used for regulating hot air flow, a cold air outlet (15) is formed in the other end of the vortex tube heater (1), a hot air outlet (14) is formed in the outlet of the throttle valve (13), and the hot air outlet (14) is connected with the submersible annular rib cylindrical pressure-resistant battery compartment (8); The high-pressure air source (2) is connected with a compressed air inlet (11) of the vortex tube heater (1) through a high-pressure air pipe; A filter (3) and an electric proportional valve (4) are connected in series on the high-pressure air pipe; the device also comprises a temperature detection unit and at least one temperature sensor (7) arranged in the circular rib cylindrical pressure-resistant battery compartment (8) of the submersible; the control unit (6) is connected with the temperature detection unit and the electric proportional valve (4) and is used for controlling the opening and closing of the electric proportional valve (4) according to the temperature signal.
2. 2. A device for rapid heating of a tank of a submersible based on vortex tube heating according to claim 1, characterized in that the hot air guiding chamber (12) is shaped and dimensioned to match the end flange of the tank (8) of a circular rib cylinder of a submersible.
3. 3. A rapid heating apparatus for a battery compartment of a submersible vehicle based on vortex tube heating as claimed in claim 1, wherein the high pressure gas source (2) provides an operating pressure in the range of 0.4 MPa to 0.8 MPa.
4. 4. The rapid heating device for the submersible battery compartment based on vortex tube heating, as claimed in claim 1, is characterized in that a plurality of lithium battery modules (9) are arranged inside the submersible annular rib cylindrical pressure-resistant battery compartment (8), a deflation valve (16) is arranged at the end part of the submersible annular rib cylindrical pressure-resistant battery compartment (8), and two temperature sensors (7) are respectively arranged in a core area close to the lithium battery modules (9) and in an end area close to the deflation valve (16).
5. 5. A device for rapid heating of a battery compartment of a submersible based on vortex tube heating according to claim 1, characterized in that the cold air outlet (15) of the vortex tube heater (1) is led to the external atmosphere through a pipe.
6. 6. A rapid heating device for a battery compartment of a submersible based on vortex tube heating as claimed in claim 1, characterized in that an air inlet valve (10) is arranged on the pipeline between the hot air outlet (14) and the circular rib cylindrical pressure-resistant battery compartment (8) of the submersible.
7. 7. A rapid heating device for a battery compartment of a submersible based on vortex tube heating as claimed in claim 1, characterized in that an air source stop valve (21) is arranged on the high-pressure air pipe between the high-pressure air source (2) and the filter (3).
8. 8. The rapid heating device for the battery compartment of the submersible based on vortex tube heating as claimed in claim 1 is characterized in that a pressure gauge (5) is arranged on a high-pressure air pipe between the electric proportional valve (4) and the compressed air inlet (11).
9. 9. A device for rapid heating of a tank of a submersible based on vortex tube heating according to claim 1, characterized in that the tank wall of the tank (8) is fitted with a tank penetrating insert (81).
10. 10. A device and method for rapidly heating a battery compartment of a submersible based on vortex tube heating as claimed in claim 1, wherein: Firstly, installing a vortex tube heater (1); Then, the temperature inside the circular rib cylindrical pressure-resistant battery compartment (8) of the submersible is monitored in real time through a temperature detection unit; When the monitored temperature is lower than a preset low-temperature threshold value, the control unit (6) opens the electric proportional valve (4) to enable the high-pressure air source (2) to supply air to the vortex tube heater (1); The vortex tube heater (1) generates hot air, and the hot air is guided into the inner part of the circular rib cylindrical pressure-resistant battery compartment (8) of the submersible through the hot air guide cavity (12) to convect and heat the lithium battery module (9); when the monitored temperature reaches or exceeds a preset high-temperature threshold value, the control unit (6) closes the electric proportional valve (4) to stop heating; The hot air generated in the heating process flows axially from the air inlet valve (10) to the air release valve (16) in the circular rib cylindrical pressure-resistant battery compartment (8) of the submersible, and is discharged out of the compartment through the air release valve (16) to form continuous convection.

Description

Rapid heating device for battery compartment of submersible based on vortex tube heating and operation method Technical Field The invention relates to the technical field of heat management of power systems of a submersible and an underwater vehicle, in particular to a rapid heating device for a battery compartment of the submersible based on vortex tube heating and an operation method. Background The diving equipment is important equipment for performing ocean exploration and operation, and the power of the diving equipment is usually derived from a lithium battery module packaged in a circular rib cylindrical pressure-resistant battery cabin. When the submersible is moored or deployed on the weather deck of a mother ship, particularly in winter or in high-latitude sea areas, the battery compartment may be exposed to extremely low temperature (e.g., -20 ℃ to-40 ℃) environments. The chemical activity of the lithium battery is rapidly reduced due to low temperature, the problems of charge and discharge performance attenuation, voltage drop and even incapability of starting occur, and the quick response and the operation reliability of the submersible are severely restricted. At present, a solution commonly adopted in the industry is to install a PTC (positive temperature coefficient) ceramic electric heating pad inside the battery compartment. Although the technology has the self-temperature limiting capability, the technology has the following inherent defects: (1) The heating speed is low: PTC heating relies on heat conduction and heat transfer from the heating mat to the battery module and cabin air is inefficient. For annular rib cylindrical pressure-resistant chambers with larger volumes, the temperature rise from-20 ℃ to the starting temperature of the lithium battery (usually above 5 ℃) usually needs 30 to 60 minutes, and the operation time is delayed. (2) Poor heating uniformity: The heating pad is usually a local surface mount, easily causes uneven temperature distribution in the cabin, has a heating dead angle, and part of battery modules can still be in a low-temperature state, and has a starting risk. (3) High energy consumption and power supply dependence: The continuous electric heating consumes a large amount of electric energy, and if the submersible is not connected with a mother ship power grid, the valuable standby power supply of the submersible is consumed, so that the underwater operation endurance is shortened. (4) Electrical safety risk: In humid, salt mist ocean environments, electrical heating elements present potential safety risks such as electrical leakage, short circuits, and the like. Therefore, there is a strong need in the art for a new technique for heating battery compartments that overcomes the above drawbacks and achieves a fast, uniform, efficient and safer heating. Disclosure of Invention Aiming at the defects in the prior art, the inventor provides a rapid heating device and an operation method for a battery compartment of a submersible based on vortex tube heating, so that the rapid heating device has the advantages of high heating speed, good temperature uniformity, low energy consumption, high safety and adaptation to a circular rib cylindrical pressure-resistant battery compartment structure. The technical scheme adopted by the invention is as follows: The utility model provides a quick heating device of submarine battery compartment based on vortex tube heating, includes vortex tube heater, the vortex tube heater top is provided with compressed air inlet, and vortex tube heater one end is provided with hot air diversion chamber and choke valve, and the choke valve is used for hot air flow adjustment, and the vortex tube heater other end has cold wind export, is provided with hot air outlet at the export of choke valve, and hot air outlet connects submarine ring rib cylinder withstand voltage battery compartment; The high-pressure air source is connected with a compressed air inlet of the vortex tube heater through a high-pressure air pipe; The high-pressure air pipe is connected with a filter and an electric proportional valve in series; the temperature detection unit is arranged in the annular rib cylindrical pressure-resistant battery compartment of the submersible, and is used for detecting the temperature of the submersible; The control unit is connected with the temperature detection unit and the electric proportional valve and is used for controlling the opening and closing of the electric proportional valve according to the temperature signal. The further technical scheme is as follows: the hot air diversion cavity is configured to match the end flange of the circular rib cylindrical pressure battery compartment of the submersible. The high pressure gas source provides an operating pressure in the range of 0.4 MPa to 0.8 MPa. A plurality of lithium battery modules are arranged in the submersible annular rib cylindrical pressure-resistant battery compartment