Abstract

The reactor core includes at least one module, a solid neutron moderator, and a liquid neutron moderators. Each module contains a casing, at least one heat pipe, one fuel element and thermal insulation. The heat pipe comprises a casing, a wick, and a coolant. The fuel element is made of nuclear fuel, arranged along an evaporation area of the heat pipe, around the heat pipe casing, in thermal contact with the heat pipe casing, and enclosed in a can. Liquid metals are used as the coolant of the heat pipe. Thermal insulation is arranged between the can and the module casing. At least one hole is made in the solid neutron moderator. Each module is arranged within a respective hole of the solid neutron moderator. The space between the module casing and the solid neutron moderator is filled with a liquid neutron moderator.

IPC Classes  ?

• G21C 15/257 - Promoting flow of the coolant using heat-pipes
• G21C 1/12 - Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling-water reactor, integral-superheat reactor, pressurised-water reactor moderator and coolant being different or separated moderator being solid, e.g. Magnox reactor
• G21C 5/02 - Moderator or core structureSelection of materials for use as moderator Details
• G21C 3/40 - Structural combination of fuel element with thermoelectric element for direct production of electric energy from fission heat
• G21C 5/12 - Moderator or core structureSelection of materials for use as moderator characterised by composition, e.g. the moderator containing additional substances which ensure improved heat resistance of the moderator

Abstract

A nuclear reactor core includes at least one module, a solid neutron moderator, and liquid neutron moderator. Each module comprises a housing, at least one heat pipe, at least one fuel element, casing, and thermal insulation. The heat pipe comprises a housing, wick, and evaporating coolant. The fuel element includes a shell and nuclear fuel. An evaporation zone of the heat pipe and the fuel elements are enclosed by the casing. The casing is filled with a liquid coolant. Liquid metal, for example, lithium, calcium, lead, and/or silver, is used as the heat pipe coolant and the liquid coolant. The thermal insulation is arranged in a space between the casing and module housing. The solid neutron moderator has at least one hole, wherein at least one module is located. A space between the solid neutron moderator and module is filled with the liquid neutron moderator.

IPC Classes  ?

• G21C 15/257 - Promoting flow of the coolant using heat-pipes
• G21C 1/12 - Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling-water reactor, integral-superheat reactor, pressurised-water reactor moderator and coolant being different or separated moderator being solid, e.g. Magnox reactor
• G21C 5/02 - Moderator or core structureSelection of materials for use as moderator Details
• G21C 3/322 - Means to influence the coolant flow through or around the bundles
• G21C 3/40 - Structural combination of fuel element with thermoelectric element for direct production of electric energy from fission heat
• G21C 5/12 - Moderator or core structureSelection of materials for use as moderator characterised by composition, e.g. the moderator containing additional substances which ensure improved heat resistance of the moderator

Abstract

A nuclear reactor core relates to the field of atomic energy. A nuclear reactor core comprises at least one module, a solid neutron moderator (4) and a liquid neutron moderator. The module comprises a housing (1), at least one heat pipe, at least one fuel element and thermal insulation (5). The heat pipe is in the form of a casing (2) having a wick (6), and comprises a reactor coolant. The fuel element is made from nuclear fuel (8) arranged in the evaporation zone of the heat pipe around its casing (2) and in thermal contact therewith, and is enclosed in a shell (3). Low-melting metals with a high boiling point, for example lithium, calcium, lead and silver, are used as the heat pipe coolant. The thermal insulation (5) is placed between the shell (3) and the module housing (1). The solid neutron moderator (4) has at least one opening in which at least one module is arranged. The space between the housing (1) and the solid neutron moderator (4) is filled with the liquid neutron moderator. The technical result is to increase the efficiency of reactor plants and to broaden the field of use of a reactor core.

IPC Classes  ?

• G21C 1/12 - Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling-water reactor, integral-superheat reactor, pressurised-water reactor moderator and coolant being different or separated moderator being solid, e.g. Magnox reactor

Abstract

The reactor core belongs to the field of nuclear power engineering. The reactor core includes at least one module, solid (4) and liquid neutron moderators. The module contains a casing (1), at least one heat pipe, one fuel element and thermal insulation (5). The heat pipe is made in the shape of a casing (2) with a wick (6), and contains a coolant. The fuel element is made of nuclear fuel (8), arranged in the evaporation area of the heat pipe around its casing (2) in thermal contact with it, and enclosed in a can (3). Low-melting metals with a high boiling point, for example, lithium, calcium, lead, silver are used as the coolant of the heat pipe. Thermal insulation (5) is arranged between the can (3) and the casing (1) of the module. At least one hole is made in the solid neutron moderator (4), in which at least one module is arranged. The space between the casing (1) of the module and the solid neutron moderator (4) is filled with a liquid neutron moderator. The technical result is an increase in the efficiency of reactor plants and the expansion of the scope of the core.

IPC Classes  ?

• G21C 1/14 - Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor

Abstract

A nuclear reactor core relates to the field of atomic power. A nuclear reactor core comprises at least one module, a solid neutron moderator (5) and a liquid neutron moderator. The module comprises a housing (2), at least one heat pipe, at least one fuel element, a casing (1) and thermal insulation (6). The heat pipe is formed from a housing (3) and a wick (7), and contains an evaporating coolant. The fuel element consists of a shell (4) and nuclear fuel (9). An evaporation zone of the heat pipe and the fuel elements are enclosed in the casing (1) which is filled with a liquid coolant. Liquid metals having a high boiling point, for example lithium, calcium, lead and silver, are used as the heat pipe coolant and the liquid coolant in the casing (1). The thermal insulation (6) is placed in a space between the casing (1) and the module housing (2). The solid neutron moderator (5) has at least one opening in which at least one module is arranged. A space between the solid neutron moderator (5) and the module is filled with the liquid neutron moderator. The technical result is an increase in the efficiency of reactor plants and an extension of the field of use of a core.

IPC Classes  ?

• G21C 1/12 - Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling-water reactor, integral-superheat reactor, pressurised-water reactor moderator and coolant being different or separated moderator being solid, e.g. Magnox reactor

Abstract

A nuclear reactor core relates to the field of atomic power. A nuclear reactor core comprises at least one module, a solid neutron moderator (5) and a liquid neutron moderator. The module comprises a housing (2), at least one heat pipe, at least one fuel element, a casing (1) and thermal insulation (6). The heat pipe is formed from a housing (3) and a wick (7), and contains an evaporating coolant. The fuel element consists of a shell (4) and nuclear fuel (9). An evaporation zone of the heat pipe and the fuel elements are enclosed in the casing (1) which is filled with a liquid coolant. Liquid metals having a high boiling point, for example lithium, calcium, lead and silver, are used as the heat pipe coolant and the liquid coolant in the casing (1). The thermal insulation (6) is placed in a space between the casing (1) and the module housing (2). The solid neutron moderator (5) has at least one opening in which at least one module is arranged. A space between the solid neutron moderator (5) and the module is filled with the liquid neutron moderator. The technical result is an increase in the efficiency of reactor plants and an extension of the field of use of a core.

IPC Classes  ?

• G21C 1/12 - Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling-water reactor, integral-superheat reactor, pressurised-water reactor moderator and coolant being different or separated moderator being solid, e.g. Magnox reactor