CN103944452B - A kind of deep-sea hydrothermal thermal gradient energy Blast Furnace Top Gas Recovery Turbine Unit (TRT) - Google Patents

Abstract

The deep-sea hydrothermal thermoelectric power generation device disclosed by the present invention includes a heat pipe, a vacuum insulation cavity and a heat dissipation cavity fastened together, a thermoelectric power generation sheet, a fixed block for the power generation sheet, a heat dissipation block, a voltage conversion circuit and a charging circuit; the heat pipe has The evaporation section, the heat insulation section and the condensation section, wherein the evaporation section is exposed outside the vacuum insulation cavity, the heat insulation section is located in the vacuum insulation cavity, and the condensation section is placed in the heat dissipation cavity. The thermoelectric power generation device adopts heat pipes to capture heat energy of deep-sea hydrothermal fluid, and has simple structure, good reliability and high energy conversion rate. The thermoelectric power generation device converts the temperature difference energy between the deep-sea hydrothermal fluid and the surrounding seawater into electric energy by using the thermoelectric power generation sheet, and the electric energy is output through the voltage conversion circuit and the charging circuit to provide energy supply for the deep-sea detection equipment. In addition, the overall structure of the thermoelectric power generation device is compact, and its external dimensions are small, which is suitable for the operation of the manipulator of the deep submersible.

Description

A deep-sea hydrothermal temperature difference energy power generation device

technical field

The invention relates to a power generation device which converts the temperature difference energy of deep-sea hydrothermal fluid into electric energy.

Background technique

Deep-sea hydrothermal vents are generally distributed on the seabed at a depth of 2,000 to 3,000 meters. The maximum temperature of the hydrothermal fluid can reach 400°C, while the temperature of the surrounding seawater is only 2-4°C. The huge temperature gradient of the deep-sea hydrothermal area makes it contain huge The temperature difference energy, the heat flux of the global deep ocean mid-ridge hydrothermal area reaches 1.5~2.8TW. Effective use of these temperature difference energy to provide energy supply for deep sea exploration equipment has important scientific research value. At present, domestic and foreign studies on deep-sea hydrothermal temperature difference energy utilization devices have been carried out, but they are only at the theoretical stage, and a thermoelectric power generation device that can effectively convert deep-sea hydrothermal temperature difference energy into electrical energy has not been developed.

Contents of the invention

The object of the present invention is to provide a deep-sea hydrothermal thermoelectric power generation device which is compact in structure, reliable in operation and suitable for providing energy supply for deep-sea detection equipment.

The deep-sea hydrothermal thermoelectric power generation device of the present invention includes: heat pipe, vacuum insulation cavity and heat dissipation cavity fastened into one, thermoelectric power generation sheet, fixed block of power generation sheet, heat dissipation block, voltage conversion circuit and charging circuit; the heat pipe has The evaporation section, the heat insulation section and the condensation section, wherein the evaporation section is exposed outside the vacuum insulation chamber, the heat insulation section is located in the vacuum insulation chamber, the condensation section is placed in the heat dissipation chamber, and the heat insulation section is welded to the crossing holes at both ends of the vacuum insulation chamber. From the outer wall of the heat pipe condensation section to the inner wall of the heat dissipation cavity, the power generation sheet fixing block, the thermoelectric energy generation sheet and the heat dissipation block are installed coaxially in sequence. The cold surface of the chip is attached to the heat sink block, the voltage conversion circuit and the charging circuit are installed in the heat dissipation cavity, the input end of the voltage conversion circuit is connected to the lead wire of the thermoelectric power generation sheet, and the output end of the voltage conversion circuit is connected to the input end of the charging circuit connected; the output end of the charging circuit is connected to the watertight wire installed on the heat dissipation cavity, and the outer wall of the heat dissipation cavity is provided with a heat dissipation groove.

In order to increase the temperature difference between the heat source and the cold source of the deep-sea hydrothermal thermoelectric power generation device, the evaporation section of the heat pipe is usually formed at an obtuse angle to the axis of the adiabatic section.

In order to facilitate gripping by the manipulator, the outer diameter of the vacuum insulation cavity is usually made smaller than the outer diameter of the heat dissipation cavity.

In order to reduce radiation heat loss, the inner wall of the vacuum insulation chamber can be mirror polished.

The deep-sea hydrothermal temperature difference energy power generation device of the present invention adopts heat pipes to capture heat energy of deep-sea hydrothermal fluid, and has simple structure, high reliability and high energy conversion rate. At the same time, the evaporation section and the heat insulation section of the heat pipe form a certain angle, which can greatly increase the temperature difference between the heat source and the cold source of the deep-sea hydrothermal temperature difference energy power generation device. The thermoelectric power generation device converts the temperature difference energy between the deep-sea hydrothermal fluid and the surrounding seawater into electric energy by using the thermoelectric power generation sheet, and the electric energy is output through the voltage conversion circuit and the charging circuit to provide energy supply for the deep-sea detection equipment. In addition, the overall structure of the thermoelectric power generation device is compact, and its external dimensions are small, which is suitable for the operation of the manipulator of the deep submersible.

Description of drawings

Fig. 1 is a schematic diagram of the structure of a deep-sea hydrothermal thermoelectric power generation device; in the figure: 1 is a heat pipe, 2 is a vacuum insulation cavity, 3 is a heat dissipation cavity, 4 is a screw, 5 is a heat dissipation block, 6 is a voltage conversion circuit, 7 It is a watertight line, 8 is a charging circuit, 9 is a thermoelectric energy generating sheet, and 10 is a fixed block of a generating sheet.

Fig. 2 is a radial sectional view of the cooling chamber.

detailed description

Further illustrate the present invention below in conjunction with accompanying drawing.

Referring to Fig. 1 and Fig. 2, the deep-sea hydrothermal thermoelectric power generation device of the present invention includes: a heat pipe 1, a vacuum insulation cavity 2 and a heat dissipation cavity 3 fastened into one, a thermoelectric power generation sheet 9, a power generation sheet fixing block 10, Heat dissipation block 5, voltage conversion circuit 6 and charging circuit 8; heat pipe 1 has an evaporation section, a heat insulation section and a condensation section, wherein the evaporation section is exposed outside the vacuum insulation cavity 2, the heat insulation section is located in the vacuum insulation cavity 2, and the condensation section is placed In the heat dissipation chamber 3, the heat insulation section is welded to the crossing holes at both ends of the vacuum heat insulation chamber 2, and the power generation chip fixing block 10 is closely attached to the coaxial line from the outer wall of the condensation section of the heat pipe 1 to the inner wall of the heat dissipation chamber 3. Power generation sheet 9 and heat dissipation block 5, wherein the hot surface of thermoelectric energy generation sheet 9 is bonded to power generation sheet fixed block 10, the cold surface of thermoelectric energy generation sheet 9 is bonded to heat dissipation block 5, voltage conversion circuit 6 and charging circuit 8 are installed In the heat dissipation chamber 3, the input end of the voltage conversion circuit 6 is connected to the lead wire of the thermoelectric energy generating sheet 9, and the output end of the voltage conversion circuit 6 is connected to the input end of the charging circuit 8; the output end of the charging circuit 8 is connected to the The watertight lines 7 on the heat dissipation cavity 3 are connected, and the outer wall of the heat dissipation cavity 3 is provided with a heat dissipation groove (see FIG. 2 ).

When the deep-sea hydrothermal temperature difference energy power generation device is working, the manipulator on the submersible clamps the vacuum insulation cavity 2, and places the evaporation section of the heat pipe 1 vertically above the deep-sea hydrothermal outlet, and the heat energy of the hydrothermal fluid is transferred to the The condensing section of the heat pipe is passed to the thermal surface of the thermoelectric energy generating sheet 9 through the fixed block 10 fixed on the condensing section of the heat pipe. On the other hand, the seawater as a cold source cools the cold surface of the thermoelectric energy generation sheet 9 through the heat dissipation cavity 3 and the heat dissipation block 5 sequentially. The thermoelectric power generation sheet effectively converts the temperature difference energy between its hot surface and cold surface into electric energy, and the electric energy passes through the voltage conversion circuit 6 and the charging circuit 8 and then is output by the watertight line 7 to provide energy supply for deep-sea detection equipment.

Claims (4)

1. A deep-sea hydrothermal thermoelectric power generation device, characterized in that it includes: a heat pipe (1), a vacuum insulation cavity (2) and a heat dissipation cavity (3) fastened into one, and a thermoelectric power generation sheet (9) , power generation plate fixing block (10), heat dissipation block (5), voltage conversion circuit (6) and charging circuit (8); heat pipe (1) has evaporation section, heat insulation section and condensation section, wherein the evaporation section is exposed in the vacuum insulation chamber Outside the body (2), the insulation section is located in the vacuum insulation cavity (2), the condensation section is placed in the heat dissipation cavity (3), the insulation section is welded to the through holes at both ends of the vacuum insulation cavity (2), and the self-heating pipe (1 ) from the outer wall of the condensing section to the inner wall of the heat dissipation chamber (3) and install the power generation piece fixing block (10), the thermoelectric power generation piece (9) and the heat dissipation block (5) coaxially in sequence, and the temperature difference power generation piece (9) ) is attached to the fixed block (10) of the power generation sheet, the cold surface of the thermoelectric energy generation sheet (9) is attached to the heat dissipation block (5), and the voltage conversion circuit (6) and the charging circuit (8) are installed in the heat dissipation chamber Inside the body (3), the input end of the voltage conversion circuit (6) is connected to the lead wire of the thermoelectric energy generating sheet (9), and the output end of the voltage conversion circuit (6) is connected to the input end of the charging circuit (8); the charging circuit The output end of (8) is connected to the watertight wire (7) installed on the heat dissipation chamber (3), and the outer wall of the heat dissipation chamber (3) is provided with a heat dissipation groove. 2. The deep-sea hydrothermal thermoelectric power generation device according to claim 1, characterized in that the evaporation section of the heat pipe (1) forms an obtuse angle with the axis of the adiabatic section. 3. The deep sea hydrothermal thermoelectric power generation device according to claim 1, characterized in that the inner wall of the vacuum insulation cavity (2) is a mirror polished surface. 4. The deep sea hydrothermal thermoelectric power generation device according to claim 1, characterized in that the outer diameter of the vacuum insulation cavity (2) is smaller than the outer diameter of the heat dissipation cavity (3).