Reactor waste heat removal and purification system

Abstract

The present invention discloses a reactor waste heat removal and purification system. The reactor is provided with a cold pipe section and a hot pipe section. The system is characterized in that it comprises: a first switching assembly, a second switching assembly, a third switching assembly, a heat exchanger, a waste heat removal pump, and a purification filter; the heat exchanger comprises a cooling channel connected to the reactor's primary coolant circuit and a heat recovery channel isolated from the cooling channel; the reactor waste heat removal and purification system comprises a heat recovery purification circuit, a purification circuit, a waste heat removal circuit, a waste heat removal energy supply circuit, and a purification energy supply circuit, each connected to one of the first switching assembly, the second switching assembly, and the third switching assembly. By combining the waste heat removal and purification and filtration functions, the present invention achieves system functional integration, is applicable to a variety of different operating conditions, saves layout space, and can be applied to nuclear power plants with limited space.

Description

Technical Field

[0001] The present invention relates to the field of nuclear power plant auxiliary systems, and in particular to a reactor waste heat removal and purification system. Background Art

[0002] Currently, the systems performing relevant functions in mature pressurized water reactors include the residual heat removal system and the chemical and volumetric control system. The chemical and volumetric control system consists of a downflow circuit, a purge circuit, a top-up circuit, and a shaft seal water and excess downflow circuit. In addition, there is a low-pressure downflow line and a boron removal line. The residual heat removal system consists of two residual heat removal pumps, two heat exchangers, and associated valves and piping. Conventional pressurized water reactor equipment is complex and requires a large number of components, making it unsuitable for the confined spaces of nuclear power plants. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a reactor waste heat removal and purification system.

[0004] The technical solution adopted by the present invention to solve the technical problem is: constructing a reactor waste heat removal and purification system, wherein the reactor is provided with a cold pipe section and a hot pipe section, and is characterized in that the reactor waste heat removal and purification system comprises: a first switching component, a second switching component, a third switching component, a heat exchanger, a waste heat removal pump and a purification filter;

[0005] The heat exchanger includes a cooling channel connected to the primary coolant circuit of the reactor, and a heat recovery channel isolated from the cooling channel;

[0006] The reactor residual heat removal and purification system includes a heat recovery purification circuit, a purification circuit, a residual heat removal circuit, a residual heat removal energy supply circuit, and a purification energy supply circuit, which are selectively connected through the first switching component, the second switching component, and the third switching component;

[0007] The heat recovery purification circuit includes the cooling channel, the purification filter and the heat recovery channel connected in sequence between the cold pipe section and the hot pipe section;

[0008] The purification circuit includes the cooling channel and the purification filter connected in sequence between the cold pipe section and the hot pipe section;

[0009] The waste heat removal circuit includes the cooling channel connected in sequence between the cold pipe section and the hot pipe section;

[0010] The waste heat removal energy supply circuit includes the cooling channel and the waste heat removal pump connected in sequence between the cold pipe section and the hot pipe section;

[0011] The purification energy supply circuit includes the cooling channel, the waste heat discharge pump and the purification filter which are sequentially connected between the cold pipe section and the hot pipe section.

[0012] Preferably, the second switching assembly includes a third control valve and a seventh control valve, the third control valve is connected in parallel with the purification filter, and the seventh control valve is connected in series with the purification filter.

[0013] Preferably, the first switching assembly includes a second control valve and a sixth control valve, the second control valve is connected in parallel with the waste heat discharge pump, and the sixth control valve is connected in series with the waste heat discharge pump.

[0014] Preferably, the third switching assembly includes a fifth control valve and an eighth control valve, the fifth control valve and the heat recovery channel are connected in parallel, and the eighth control valve and the heat recovery channel are connected in series.

[0015] Preferably, the second control valve is opened, the sixth control valve is closed, the third control valve is closed, the seventh control valve is opened, the fifth control valve is closed, and the eighth control valve is opened, so as to form the connection of the heat recovery purification circuit;

[0016] The second control valve is opened, the sixth control valve is closed, the third control valve is closed, the seventh control valve is opened, the fifth control valve is opened, and the eighth control valve is closed, so as to form the connection of the purification circuit;

[0017] The second control valve is opened, the sixth control valve is closed, the third control valve is opened, the seventh control valve is closed, the fifth control valve is opened, and the eighth control valve is closed, so as to form the connection of the waste heat discharge circuit;

[0018] The second control valve is closed, the sixth control valve is opened, the third control valve is opened, the seventh control valve is closed, the fifth control valve is opened, and the eighth control valve is closed, so as to form the connection of the waste heat discharge energy supply circuit;

[0019] The second control valve is closed, the sixth control valve is opened, the third control valve is closed, the seventh control valve is opened, the fifth control valve is opened, and the eighth control valve is closed, thereby forming the connection of the purification energy supply circuit.

[0020] Preferably, the first switching component includes a first three-way valve, an inlet of the first three-way valve is connected to the cooling channel, and two outlets of the first three-way valve are respectively connected to the second switching component and the waste heat discharge pump.

[0021] Preferably, the third switching component includes a second three-way valve, an inlet of the second three-way valve is connected to the second switching component, and two outlets of the second three-way valve are connected to the heat return channel and the heat pipe section respectively.

[0022] Preferably, the first three-way valve is adjusted to be connected to the second switching assembly, the third control valve is closed, the seventh control valve is opened, and the second three-way valve is adjusted to be connected to the heat recovery channel, so as to form the connection of the heat recovery purification circuit;

[0023] The first three-way valve is adjusted to connect with the second switching assembly, the third control valve is closed, the seventh control valve is opened, and the second three-way valve is adjusted to connect with the heat pipe section, thereby connecting the heat recovery purification circuit and the purification circuit;

[0024] The first three-way valve is adjusted to connect to the second switching assembly, the third control valve is opened, the seventh control valve is closed, and the second three-way valve is adjusted to connect to the heat pipe section, thereby forming the connection of the waste heat discharge circuit;

[0025] The first three-way valve is adjusted to connect to the waste heat removal pump, the third control valve is opened, the seventh control valve is closed, and the second three-way valve is adjusted to connect to the heat pipe section, thereby forming the connection of the waste heat removal energy supply circuit;

[0026] The first three-way valve is adjusted to connect to the waste heat discharge pump, the third control valve is closed, the seventh control valve is opened, and the second three-way valve is adjusted to connect to the heat pipe section, thereby forming the connection of the purification energy supply circuit.

[0027] Preferably, a first control valve is provided between the cold pipe section and the cooling channel; and a fourth control valve is provided between the second switching component and the third switching component.

[0028] Preferably, the cooling channel can reduce the temperature of the coolant in a circuit to 60°C, and a first temperature sensor is provided between the cooling channel and the first switching component; the heat recovery channel can increase the temperature of the coolant in a circuit to 290°C, and a second temperature sensor is provided between the heat recovery channel and the heat pipe section.

[0029] The implementation of the present invention has the following beneficial effects: by combining the waste heat removal and purification and filtration functions, the system functions are integrated, which can be applied to a variety of different working conditions, is convenient for maintenance and installation, and saves layout space, and can be applied to nuclear power plants with narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0031] Figure 1 is a schematic diagram of the main pipeline of the reactor waste heat removal and purification system in some embodiments of the present invention;

[0032] Figure 2 Schematic diagram of the main pipeline of the reactor waste heat removal and purification system in other embodiments of the present invention. DETAILED DESCRIPTION

[0033] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0034] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intervening elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] Figure 1The present invention illustrates a reactor waste heat removal and purification system in some embodiments. The reactor 1 is provided with a cold pipe section 11 and a hot pipe section 12. The reactor waste heat removal and purification system includes a first switching assembly, a second switching assembly, a third switching assembly, a heat exchanger 6, a waste heat removal pump 31, and a purification filter 41. The system also includes a connecting pipeline 2 and a first branch pipeline 3, a second branch pipeline 4, and a third branch pipeline 5 connected in parallel to the connecting pipeline 2. The first end of the connecting pipeline 2 is connected to the cold pipe section 11, and the second end is connected to the hot pipe section 12. In this embodiment, the connecting pipeline 2, the first branch pipeline 3, the second branch pipeline 4, and the third branch pipeline 5 can be metal hoses or metal rigid pipes, and the ends of the pipelines can be provided with quick connectors for quick connection.

[0036] Heat exchanger 6 includes a cooling channel connected to the primary coolant circuit of reactor 1, and a heat recovery channel isolated from the cooling channel. The reactor residual heat removal and purification system includes a heat recovery purification circuit, a purification circuit, a residual heat removal circuit, a residual heat removal energy supply circuit, and a purification energy supply circuit, which are selectively connected via a first switching assembly, a second switching assembly, and a third switching assembly.

[0037] The regenerative heat purification circuit includes a cooling channel, a purification filter 41, and a regenerative heat channel, connected sequentially between the cold pipe section 11 and the hot pipe section 12. This circuit can be used for purification during power operation. The purification circuit includes a cooling channel and a purification filter 41, connected sequentially between the cold pipe section 11 and the hot pipe section 12. This circuit can be used for low-speed operation of the main pump during unit startup and shutdown. The residual heat removal circuit includes a cooling channel, connected sequentially between the cold pipe section 11 and the hot pipe section 12. This circuit can be used for high-flow cooling during unit startup and shutdown. The residual heat removal energy supply circuit includes a cooling channel, a residual heat removal pump 31, and a purification filter 41, connected sequentially between the cold pipe section 11 and the hot pipe section 12. This circuit can be used for cooling when the main pump is shut down. The purification energy supply circuit includes a cooling channel, a residual heat removal pump 31, and a purification filter 41, connected sequentially between the cold pipe section 11 and the hot pipe section 12. This circuit can be used for cold shutdown conditions for unit maintenance. Specifically, the cooling channel is provided on the connecting pipeline 2, the waste heat removal pump 31 is provided on the first branch pipeline 3, the purification filter 41 is provided on the second branch pipeline 4, and the heat recovery channel is provided on the third branch pipeline 5. Preferably, the heat exchanger 4 can be a U-tube heat exchanger, a shell-and-tube heat exchanger, or a plate heat exchanger, and the purification filter 32 can be filled with resin and a filter to ensure that the water quality of the primary circuit is within a controllable range.

[0038] In some embodiments, the first switching assembly may include a second control valve 22 and a sixth control valve 32. The second control valve 22 is connected in parallel with the waste heat removal pump 31, and the sixth control valve 32 is connected in series with the waste heat removal pump 31. The second switching assembly may include a third control valve 23 and a seventh control valve 42. The third control valve 23 is connected in parallel with the purification filter 41, and the seventh control valve 42 is connected in series with the purification filter 41. The third switching assembly may include a fifth control valve 25 and an eighth control valve 51. The fifth control valve 25 is connected in parallel with the heat recovery channel, and the eighth control valve 51 is connected in series with the heat recovery channel. Specifically, the second control valve 22 is disposed on a section of the connecting pipeline 2 between the ends of the first branch line 3, and the sixth control valve 32 is disposed on the first branch line 3; the third control valve 23 is disposed on a section of the connecting pipeline 2 between the ends of the second branch line 4, and the seventh control valve 42 is disposed on the second branch line 4; the fifth control valve 25 is disposed on a section of the connecting pipeline 2 between the ends of the third branch line 5, and the eighth control valve 51 is disposed on the third branch line 5.

[0039] The second control valve 22 is opened, the sixth control valve 32 is closed, the third control valve 23 is closed, the seventh control valve 42 is opened, the fifth control valve 25 is closed, and the eighth control valve 51 is opened, thereby forming the connection of the heat recovery purification circuit. The second control valve 22 is opened, the sixth control valve 32 is closed, the third control valve 23 is closed, the seventh control valve 42 is opened, the fifth control valve 25 is opened, and the eighth control valve 51 is closed, thereby forming the connection of the purification circuit. The second control valve 22 is opened, the sixth control valve 32 is closed, the third control valve 23 is opened, the seventh control valve 42 is closed, the fifth control valve 25 is opened, and the eighth control valve 51 is closed, thereby forming the connection of the waste heat discharge circuit. The second control valve 22 is closed, the sixth control valve 32 is opened, the third control valve 23 is opened, the seventh control valve 42 is closed, the fifth control valve 25 is opened, and the eighth control valve 51 is closed, thereby forming the connection of the waste heat discharge energy supply circuit. The second control valve 22 is closed, the sixth control valve 32 is opened, the third control valve 23 is closed, the seventh control valve 42 is opened, the fifth control valve 25 is opened, and the eighth control valve 51 is closed, so as to form a connection of the purification energy supply circuit.

[0040] It is understood that in other embodiments, the first switching assembly includes a first three-way valve 27, the inlet of the first three-way valve 27 being connected to the cooling channel, and the two outlets of the first three-way valve 27 being connected to the second switching assembly and the waste heat removal pump 31, respectively. The third switching assembly includes a second three-way valve 28, the inlet of the second three-way valve 28 being connected to the second switching assembly, and the two outlets of the second three-way valve 28 being connected to the heat recovery channel and the heat pipe section 12, respectively. By adjusting the first three-way valve 27 to connect to the second switching assembly, closing the third control valve 23, opening the seventh control valve 42, and adjusting the second three-way valve 28 to connect to the heat recovery channel, the heat recovery purification circuit can be connected.

[0041] By adjusting the first three-way valve 27 to connect to the second switching assembly, closing the third control valve 23, opening the seventh control valve 42, and adjusting the second three-way valve 28 to connect to the heat pipe segment 12, the heat recovery and purification circuit can be connected. By adjusting the first three-way valve 27 to connect to the second switching assembly, opening the third control valve 23, closing the seventh control valve 42, and adjusting the second three-way valve 28 to connect to the heat pipe segment 12, the residual heat discharge circuit can be connected. By adjusting the first three-way valve 27 to connect to the residual heat discharge pump 31, opening the third control valve 23, closing the seventh control valve 42, and adjusting the second three-way valve 28 to connect to the heat pipe segment 12, the residual heat discharge energy supply circuit can be connected. By adjusting the first three-way valve 27 to connect to the residual heat discharge pump 31, closing the third control valve 23, opening the seventh control valve 42, and adjusting the second three-way valve 28 to connect to the heat pipe segment 12, the residual heat discharge energy supply circuit can be connected.

[0042] In some embodiments, a first control valve 21 is provided between the cold pipe section 11 and the cooling channel. A fourth control valve 24 is provided between the second switching component and the third switching component.

[0043] Preferably, the first control valve 21, the second control valve 22, the third control valve 23, the fourth control valve 24, the fifth control valve 25, the sixth control valve 32, the seventh control valve 42, the eighth control valve 51, the first three-way valve 27, and the second three-way valve 28 can all be solenoid valves in some embodiments, used to isolate related equipment according to different operating conditions to meet the operating requirements of different operating conditions.

[0044] The cooling channel can reduce the primary coolant temperature to 60°C. A first temperature sensor 26 is provided between the cooling channel and the first switching assembly for real-time monitoring of the coolant temperature there. The heat recovery channel can increase the primary coolant temperature to 290°C. A second temperature sensor 52 is provided between the heat recovery channel and the heat pipe section 12 for real-time monitoring of the coolant temperature there.

[0045] For the purification condition during power operation, the primary coolant first flows out from the cold pipe section 11 of the reactor 1, then flows through the first control valve 21 to the cooling channel of the heat exchanger 6, and the cooling water reduces the temperature of the primary coolant to below 60°C. Then, it is connected to the purification filter 41 through the first switching component and the second switching component, and then returns to the heat recovery channel of the heat exchanger 6 through the third switching component. After the temperature is raised to 290°C, it returns to the hot pipe section 12 of the reactor 1.

[0046] For the low-speed operation condition of the main pump during the start-up and shutdown of the unit, the primary coolant first flows out from the cold pipe section 11 of the reactor 1, then flows through the first control valve 21 to the cooling channel of the heat exchanger 6, and the cooling water reduces the temperature of the primary coolant to below 60°C. Then, it is connected to the purification filter 41 through the first switching component and the second switching component, and then flows back to the hot pipe section 12 of the reactor 1 through the third switching component.

[0047] For high-flow cooling conditions during unit startup and shutdown, the primary coolant first flows out of the cold pipe section 11 of the reactor 1, then flows through the first control valve 21 to the cooling channel of the heat exchanger 6, and the cooling water reduces the temperature of the primary coolant to below 60°C, and then flows back to the hot pipe section 12 of the reactor 1 through the first switching component, the second switching component and the third switching component.

[0048] For the cooling condition when the main pump is shut down, the primary coolant first flows out of the cold pipe section 11 of the reactor 1, then flows through the first control valve 21 to the cooling channel of the heat exchanger 6, and the cooling water reduces the temperature of the primary coolant to below 60°C. It is then connected to the waste heat discharge pump 31 through the first switching component, and then the waste heat discharge pump 31 injects the coolant into the hot pipe section 12 of the reactor 1 through the second switching component and the third switching component.

[0049] For the unit maintenance cold shutdown condition, the primary coolant first flows out of the cold pipe section 11 of the reactor 1, then flows through the first control valve 21 to the cooling channel of the heat exchanger 6, and the cooling water reduces the temperature of the primary coolant to below 60°C. Then, it is connected to the waste heat discharge pump 31 through the first switching component, and then the waste heat discharge pump 31 injects the coolant into the purification filter 41 through the second switching component, and then flows back to the hot pipe section 12 of the reactor 1 through the third switching component.

[0050] The reactor waste heat removal and purification system integrates the waste heat removal and purification filtration functions to achieve system function integration. It can be applied to a variety of different working conditions, facilitates maintenance and installation, and saves layout space. It can be used in nuclear power plants with limited space.

[0051] It can be understood that the above embodiments only express the preferred implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, all of which fall within the scope of protection of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of coverage of the claims of the present invention.

Claims

1. A reactor waste heat removal and purification system, wherein the reactor (1) is provided with a cold pipe section (11) and a hot pipe section (12), characterized in that: The reactor waste heat removal and purification system comprises: a first switching component, a second switching component, a third switching component, a heat exchanger (6), a waste heat removal pump (31) and a purification filter (41); The heat exchanger (6) comprises a cooling channel connected to a primary coolant circuit of the reactor (1), and a heat recovery channel isolated from the cooling channel; The reactor residual heat removal and purification system includes a heat recovery purification circuit, a purification circuit, a residual heat removal circuit, a residual heat removal energy supply circuit, and a purification energy supply circuit, which are selectively connected through the first switching component, the second switching component, and the third switching component; The heat recovery purification circuit comprises the cooling channel, the purification filter (41), and the heat recovery channel, which are sequentially connected between the cold pipe section (11) and the hot pipe section (12); The purification circuit comprises the cooling channel and the purification filter (41) connected in sequence between the cold pipe section (11) and the hot pipe section (12); The waste heat discharge circuit includes the cooling channel sequentially connected between the cold pipe section (11) and the hot pipe section (12); The waste heat removal energy supply circuit comprises the cooling channel and the waste heat removal pump (31) connected in sequence between the cold pipe section (11) and the hot pipe section (12); The purification energy supply circuit comprises the cooling channel, the waste heat discharge pump (31) and the purification filter (41) which are sequentially connected between the cold pipe section (11) and the hot pipe section (12).

2. The reactor waste heat removal and purification system according to claim 1, characterized in that: The second switching assembly comprises a third control valve (23) and a seventh control valve (42), wherein the third control valve (23) is connected in parallel with the purification filter (41), and the seventh control valve (42) is connected in series with the purification filter (41).

3. The reactor waste heat removal and purification system according to claim 2, characterized in that: The first switching assembly comprises a second control valve (22) and a sixth control valve (32), the second control valve (22) being connected in parallel with the waste heat discharge pump (31), and the sixth control valve (32) being connected in series with the waste heat discharge pump (31).

4. The reactor waste heat removal and purification system according to claim 3, characterized in that: The third switching assembly comprises a fifth control valve (25) and an eighth control valve (51), the fifth control valve (25) and the heat recovery channel are connected in parallel, and the eighth control valve (51) and the heat recovery channel are connected in series.

5. The reactor waste heat removal and purification system according to claim 4, characterized in that: The second control valve (22) is opened, the sixth control valve (32) is closed, the third control valve (23) is closed, the seventh control valve (42) is opened, the fifth control valve (25) is closed, and the eighth control valve (51) is opened, thereby forming the connection of the heat recovery purification circuit; The second control valve (22) is opened, the sixth control valve (32) is closed, the third control valve (23) is closed, the seventh control valve (42) is opened, the fifth control valve (25) is opened, and the eighth control valve (51) is closed, thereby forming the connection of the purification circuit; The second control valve (22) is opened, the sixth control valve (32) is closed, the third control valve (23) is opened, the seventh control valve (42) is closed, the fifth control valve (25) is opened, and the eighth control valve (51) is closed, thereby forming the connection of the waste heat discharge circuit; The second control valve (22) is closed, the sixth control valve (32) is opened, the third control valve (23) is opened, the seventh control valve (42) is closed, the fifth control valve (25) is opened, and the eighth control valve (51) is closed, thereby forming the connection of the waste heat discharge energy supply circuit; The second control valve (22) is closed, the sixth control valve (32) is opened, the third control valve (23) is closed, the seventh control valve (42) is opened, the fifth control valve (25) is opened, and the eighth control valve (51) is closed, thereby forming the connection of the purification energy supply circuit.

6. The reactor waste heat removal and purification system according to claim 2, characterized in that: The first switching component comprises a first three-way valve (27), the inlet of the first three-way valve (27) is connected to the cooling channel, and the two outlets of the first three-way valve (27) are respectively connected to the second switching component and the waste heat discharge pump (31).

7. The reactor waste heat removal and purification system according to claim 6, characterized in that: The third switching component comprises a second three-way valve (28), the inlet of the second three-way valve (28) is connected to the second switching component, and the two outlets of the second three-way valve (28) are respectively connected to the heat return channel and the heat pipe section (12).

8. The reactor waste heat removal and purification system according to claim 7, characterized in that: The first three-way valve (27) is adjusted to be connected to the second switching assembly, the third control valve (23) is closed, the seventh control valve (42) is opened, and the second three-way valve (28) is adjusted to be connected to the heat recovery channel, thereby forming the connection of the heat recovery purification circuit; The first three-way valve (27) is adjusted to be connected to the second switching assembly, the third control valve (23) is closed, the seventh control valve (42) is opened, and the second three-way valve (28) is adjusted to be connected to the heat pipe section (12), thereby forming the connection of the heat recovery purification circuit and the connection of the purification circuit; The first three-way valve (27) is adjusted to be connected to the second switching assembly, the third control valve (23) is opened, the seventh control valve (42) is closed, and the second three-way valve (28) is adjusted to be connected to the heat pipe section (12), thereby forming the connection of the waste heat discharge circuit; The first three-way valve (27) is adjusted to be in communication with the waste heat discharge pump (31), the third control valve (23) is opened, the seventh control valve (42) is closed, and the second three-way valve (28) is adjusted to be in communication with the heat pipe section (12), thereby forming the connection of the waste heat discharge energy supply circuit; The first three-way valve (27) is adjusted to connect it to the waste heat discharge pump (31), the third control valve (23) is closed, the seventh control valve (42) is opened, and the second three-way valve (28) is adjusted to connect it to the heat pipe section (12), thereby forming the connection of the purification energy supply circuit.

9. The reactor waste heat removal and purification system according to any one of claims 1 to 8, characterized in that: A first control valve (21) is provided between the cooling pipe section (11) and the cooling channel; and a fourth control valve (24) is provided between the second switching component and the third switching component.

10. The reactor waste heat removal and purification system according to any one of claims 1 to 8, characterized in that: The cooling channel can reduce the temperature of the first-circuit coolant to 60°C, and a first temperature sensor (26) is provided between the cooling channel and the first switching component; the heat recovery channel can increase the temperature of the first-circuit coolant to 290°C, and a second temperature sensor (52) is provided between the heat recovery channel and the heat pipe section (12).

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