Swimming pool type low-temperature nuclear energy heat supply system and urban integrated heat supply system

Through the swimming pool-type low-temperature nuclear energy heating system, combined with the low-temperature swimming pool nuclear reactor and green electric boiler, the resource depletion and air pollution caused by coal heating are solved, clean and low-carbon urban heating is achieved, and the climate and environment are protected.

CN119085012APending Publication Date: 2024-12-06XIAHUAYUAN POWER PLANT OF DATANG INT POWER GENERATION +1
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Patent Information

Application Number
CN202411306730.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-19
Publication Date
2024-12-06

AI Technical Summary

Technical Problem

The existing coal heating methods lead to resource depletion and air pollution, affecting the climate and environment.

Method used

The pool-type low-temperature nuclear energy heating system is adopted, combined with the low-temperature swimming pool nuclear reactor and green electric boiler, and the first-stop system of the heat network and the circular heating pipeline network are used to achieve clean and low-carbon centralized heating in urban areas to avoid air pollution.

Benefits of technology

The heating and water supply temperature of swimming pool-type nuclear reactors has been improved, and the applicability has been improved, so as to achieve clean, low-carbon and environmentally friendly centralized heating in urban areas and protect the climate and environment.

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Abstract

The invention relates to the technical field of heat supply, in particular to a swimming pool type low-temperature nuclear energy heat supply system and an urban integrated heat supply system. The heat supply system comprises a low-temperature swimming pool nuclear reactor system, an electric boiler heat supply system and a heat supply network initial station system. The low-temperature swimming pool nuclear reactor system comprises a swimming pool type nuclear reactor, first liquid conveying equipment, a first heat exchanger and second liquid conveying equipment, the swimming pool type nuclear reactor is connected with the first heat exchanger, one end of the first liquid conveying equipment is connected with the swimming pool type nuclear reactor, and the other end of the first liquid conveying equipment is connected with the first heat exchanger. One end of the second liquid conveying equipment is connected with the first heat exchanger, and the other end is connected with the heat supply network initial station; the electric boiler heat supply system comprises a green electricity electric boiler, third liquid conveying equipment and a second heat exchanger; the heat supply and water supply temperature of the swimming pool type nuclear reactor is increased to meet the requirement of a heat supply network, the applicability of the swimming pool low-temperature nuclear reactor is improved, and therefore clean, low-carbon and environment-friendly centralized heat supply in cities and towns is achieved.
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Description

Technical Field

[0001] The present invention relates to the technical field of heating, and in particular to a swimming pool type low-temperature nuclear energy heating system and an urban integrated heating system. Background Art

[0003] A total of about 20 billion square meters of building area in northern my country uses thermal power units as heat sources, of which an estimated 8 billion square meters of building area needs to find safe, reliable, low-carbon, clean and cost-effective alternative heat sources.

[0004] Nowadays, coal is usually used for heating in the north. Coal is burned to generate heat and then supplied to various users. However, since coal is a short-term non-renewable energy, the coal heating method will lead to resource depletion. In the process of coal combustion, it will pollute the air and affect the climate environment. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the coal heating method in the prior art will lead to resource depletion, and that coal will pollute the air and affect the climate environment during combustion, thereby providing a swimming pool-type low-temperature nuclear energy heating system and an urban integrated heating system.

[0006] In order to solve the above technical problems, the present invention provides a swimming pool type low-temperature nuclear energy heating system, including: a low-temperature swimming pool nuclear reactor system and an electric boiler heating system, a heating network first station system; the low-temperature swimming pool nuclear reactor system includes a swimming pool type nuclear reactor and a first liquid conveying device, a first heat exchanger, and a second liquid conveying device, the swimming pool type nuclear reactor is connected to the first heat exchanger, one end of the first liquid conveying device is connected to the swimming pool type nuclear reactor, and the other end is connected to the first heat exchanger, one end of the second liquid conveying device is connected to the first heat exchanger, and the other end is connected to the heating network first station system; the electric boiler heating system includes a green power electric boiler and a third liquid conveying device, a second heat exchanger exchanger, the green electricity electric boiler is connected to the second heat exchanger, and the third liquid conveying equipment is arranged between the green electricity electric boiler and the second heat exchanger; the heating network first station system includes a third heat exchanger and a heating network return pipe, a heating network heat supply pipe, and a fourth liquid conveying equipment. One end of the third heat exchanger is provided with a heating network return pipe, and the other end is provided with a heating network heat supply pipe. The fourth liquid conveying equipment is arranged on the heating network return pipe, and the third heat exchanger is connected to the second liquid conveying equipment; a first on-off structure and a second on-off structure, the first on-off structure is arranged between the first heat exchanger and the second heat exchanger, and the second on-off structure is arranged between the first heat exchanger and the third heat exchanger.

[0007] Furthermore, a first pipeline is provided between the first heat exchanger and the second heat exchanger, and the first on-off structure is provided on the first pipeline.

[0008] Furthermore, a second pipeline is provided between the second heat exchanger and the third heat exchanger, and the second on-off structure is provided on the third pipeline between the first pipeline and the second pipeline.

[0009] Furthermore, a fourth pipeline is provided between the first heat exchanger and the third heat exchanger, and the second liquid delivery device is provided on the fourth pipeline.

[0010] Furthermore, the first on-off structure and the second on-off structure are both solenoid valves.

[0011] Furthermore, it also includes a manual valve, which is arranged on the first pipeline and the third pipeline.

[0012] Furthermore, the first liquid conveying equipment, the second liquid conveying equipment, the third liquid conveying equipment, and the fourth liquid conveying equipment are all water pumps.

[0013] The present invention also provides an integrated urban heating system, including the swimming pool type low-temperature nuclear energy heating system.

[0014] Furthermore, it also includes: a ring-shaped heating network, the heat network first station system is connected to the ring-shaped heating network; a secondary network heat exchange station, which has multiple, multiple secondary network heat exchange stations are arranged on the ring-shaped heating network, and the secondary network heat exchange station is connected to heat users; an air source heat pump heat exchange station is connected to the ring-shaped heating network, and the air source heat pump heat exchange station is connected to the air source heat pump.

[0015] Furthermore, there are three secondary network heat exchange stations.

[0016] The technical solution of the present invention has the following advantages:

[0017] The swimming pool type low-temperature nuclear energy heating system provided by the present invention comprises: a low-temperature swimming pool nuclear reactor system, an electric boiler heating system, and a heating network first station system; the low-temperature swimming pool nuclear reactor system comprises a swimming pool type nuclear reactor and a first liquid conveying device, a first heat exchanger, and a second liquid conveying device, the swimming pool type nuclear reactor is connected to the first heat exchanger, one end of the first liquid conveying device is connected to the swimming pool type nuclear reactor, and the other end is connected to the first heat exchanger, one end of the second liquid conveying device is connected to the first heat exchanger, and the other end is connected to the heating network first station system; the electric boiler heating system comprises a green electric boiler and a third liquid conveying device, a second heat exchanger, the green The green electric boiler is connected to the second heat exchanger, and the third liquid conveying equipment is arranged between the green electric boiler and the second heat exchanger; the heating network first station system includes a third heat exchanger and a heating network return pipe, a heating network heat supply pipe, and a fourth liquid conveying equipment. One end of the third heat exchanger is provided with a heating network return pipe, and the other end is provided with a heating network heat supply pipe. The fourth liquid conveying equipment is arranged on the heating network return pipe, and the third heat exchanger is connected to the second liquid conveying equipment; a first on-off structure and a second on-off structure, the first on-off structure is arranged between the first heat exchanger and the second heat exchanger, and the second on-off structure is arranged between the first heat exchanger and the third heat exchanger.

[0018] The heating return water from the primary pipe network enters the third heat exchanger of the heating network first station system through the heating network return pipe for heat exchange. After absorbing heat, it enters the heating network through the heating network heating pipe for heating.

[0019] The green power electric boiler and the swimming pool-type nuclear reactor jointly provide heating. The first on-off structure is opened and the second on-off structure is closed. The hot water after heat exchange through the first station system of the heat network enters the second liquid conveying equipment, and then enters the first heat exchanger to absorb heat. It passes through the first on-off structure and enters the second heat exchanger to absorb heat and enters the first station system of the heat network to provide heat for the primary network return water.

[0020] The swimming pool type nuclear reactor operates normally, and the heat from the swimming pool type nuclear reactor is exchanged through the first heat exchanger. After losing the heat, it returns to the swimming pool type nuclear reactor through the first liquid conveying equipment. The green power electric boiler operates normally. The green power electric boiler consumes green power, generates high-temperature hot water, enters the second heat exchanger, loses the heat, and returns to the green power electric boiler through the third liquid conveying equipment.

[0021] The swimming pool-type nuclear reactor provides heat independently, the first on-off structure is closed, and the second on-off structure is opened. The hot water after heat exchange through the first station system of the heat network enters the second liquid conveying equipment, and then enters the first heat exchanger to absorb heat, and passes through the second on-off structure to enter the first station system of the heat network to provide heat for the primary network return water.

[0022] This swimming pool-type low-temperature nuclear energy heating system, through the joint setting of the low-temperature swimming pool nuclear reactor system, the first station system of the heating network, and the electric boiler heating system, while ensuring the safety of heating, increases the heating water temperature of the swimming pool-type nuclear reactor to meet the needs of the heating network, and improves the applicability of the swimming pool low-temperature nuclear reactor, thereby achieving clean, low-carbon and environmentally friendly centralized heating in towns and cities, avoiding air pollution, and better protecting the climate environment.

[0023] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the disclosure, nor is it intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a swimming pool type low temperature nuclear energy heating system provided by the present invention;

[0026] Figure 2 This is a schematic structural diagram of the urban integrated heating system provided by the present invention.

[0027] Description of reference numerals:

[0028] 1. Low-temperature swimming pool nuclear reactor system; 2. Electric boiler heating system; 3. Heat network first station system; 4. Swimming pool nuclear reactor; 5. First liquid conveying equipment; 6. First heat exchanger; 7. Second liquid conveying equipment; 8. Green power electric boiler; 9. Third liquid conveying equipment; 10. Second heat exchanger; 11. Third heat exchanger; 12. Heat network return pipe; 13. Heat network heating pipe; 14. Fourth liquid conveying equipment; 15. First on-off structure; 16. Second on-off structure; 17. First pipeline; 18. Second pipeline; 19. Third pipeline; 20. Fourth pipeline; 21. Ring heating network; 22. Second network heat exchange station; 23. Heat user; 24. Air source heat pump heat exchange station; 25. Air source heat pump. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0032] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0034] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0035] See also Figure 1 to Figure 2 As shown, the present invention provides a swimming pool type low-temperature nuclear energy heating system, comprising: a low-temperature swimming pool nuclear reactor system 1 and an electric boiler heating system 2, and a heating network first station system 3; the low-temperature swimming pool nuclear reactor system 1 comprises a swimming pool type nuclear reactor 4 and a first liquid conveying device 5, a first heat exchanger 6, and a second liquid conveying device 7, the swimming pool type nuclear reactor 4 is connected to the first heat exchanger 6, one end of the first liquid conveying device 5 is connected to the swimming pool type nuclear reactor 4, and the other end is connected to the first heat exchanger 6, one end of the second liquid conveying device 7 is connected to the first heat exchanger 6, and the other end is connected to the heating network first station system 3; the electric boiler heating system 2 comprises a green electricity electric boiler 8 and a third liquid conveying device 9, a second heat exchanger 10, the green electricity electric boiler 8 is connected to the first heat exchanger 6 The second heat exchanger 10 is connected, and the third liquid conveying equipment 9 is arranged between the green power electric boiler 8 and the second heat exchanger 10; the heating network first station system 3 includes a third heat exchanger 11 and a heating network return pipe 12, a heating network heating pipe 13, and a fourth liquid conveying equipment 14. The heating network return pipe 12 is arranged at one end of the third heat exchanger 11, and the heating network heating pipe 13 is arranged at the other end. The fourth liquid conveying equipment 14 is arranged on the heating network return pipe 12, and the third heat exchanger 11 is connected to the second liquid conveying equipment 7; a first on-off structure 15 and a second on-off structure 16, the first on-off structure 15 is arranged between the first heat exchanger 6 and the second heat exchanger 10, and the second on-off structure 16 is arranged between the first heat exchanger 6 and the third heat exchanger 11.

[0036] The heating return water from the primary pipe network enters the third heat exchanger 11 of the heating network first station system 3 through the heating network return pipe 12 for heat exchange. After absorbing heat, it enters the heating network through the heating network heating pipe 13 to provide heat.

[0037] The green power electric boiler 8 and the swimming pool type nuclear reactor 4 jointly provide heat, the first on-off structure 15 is opened, and the second on-off structure 16 is closed. The hot water after heat exchange through the heat network first station system 3 enters the second liquid conveying equipment 7, and then enters the first heat exchanger 6 to absorb heat, passes through the first on-off structure 15, enters the second heat exchanger 10 to absorb heat, and enters the heat network first station system 3 to provide heat for the primary network return water.

[0038] The swimming pool type nuclear reactor 4 operates normally, and the heat from the swimming pool type nuclear reactor 4 is exchanged through the first heat exchanger 6, and after losing the heat, it returns to the swimming pool type nuclear reactor 4 through the first liquid conveying device 5. The green power electric boiler 8 operates normally, and the green power electric boiler 8 consumes green power, generates high-temperature hot water, enters the second heat exchanger 10, and returns to the green power electric boiler 8 through the third liquid conveying device 9 after losing the heat.

[0039] The swimming pool-type nuclear reactor 4 provides heat independently, the first on-off structure 15 is closed, and the second on-off structure 16 is opened. The hot water after heat exchange through the heat network first station system 3 enters the second liquid conveying equipment 7, and then enters the first heat exchanger 6 to absorb heat, and enters the heat network first station system 3 through the second on-off structure 16 to provide heat for the primary network return water.

[0040] The swimming pool type low-temperature nuclear energy heating system, through the common setting of the low-temperature swimming pool nuclear reactor system 1, the heating network first station system 3, and the electric boiler heating system 2, increases the heating and water supply temperature of the swimming pool type nuclear reactor 4 to meet the needs of the heating network while ensuring the safety of heating, and improves the applicability of the swimming pool low-temperature nuclear reactor, thereby achieving clean, low-carbon and environmentally friendly centralized heating in towns and cities, avoiding air pollution, and better protecting the climate environment.

[0041] In some optional embodiments, a first pipeline 17 is provided between the first heat exchanger 6 and the second heat exchanger 10, and the first on-off structure 15 is provided on the first pipeline 17. By providing the first on-off structure 15, the liquid in the second heat exchanger 10 can be controlled to be transported to the third heat exchanger 11, thereby ensuring the circulation of the liquid.

[0042] A second pipeline 18 is provided between the second heat exchanger 10 and the third heat exchanger 11 , and the second on-off structure 16 is provided on a third pipeline 19 between the first pipeline 17 and the second pipeline 18 .

[0043] By setting the second on-off structure 16, the circulation and heat exchange of the liquid in the first heat exchanger 6, the second heat exchanger 10, and the third heat exchanger 11 can be controlled, thereby ensuring the circulation of the liquid.

[0044] In some optional embodiments, a fourth pipeline 20 is provided between the first heat exchanger 6 and the third heat exchanger 11 , and the second liquid delivery device 7 is provided on the fourth pipeline 20 .

[0045] By providing the second liquid delivery device 7 , the liquid in the third heat exchanger 11 can be delivered to the first heat exchanger 6 through the first heat exchanger 6 .

[0046] Specifically, the green power electric boiler 8 and the swimming pool-type nuclear reactor 4 jointly provide heat, the first on-off structure 15 is opened, and the second on-off structure 16 is closed, and the hot water after heat exchange through the heat network first station system 3 enters the second liquid conveying equipment 7 through the fourth pipeline 20, and then enters the first heat exchanger 6 to absorb heat, passes through the first on-off structure 15, enters the second heat exchanger 10 to absorb heat, and enters the heat network first station system 3 to provide heat for the primary network return water.

[0047] The swimming pool-type nuclear reactor 4 provides heat independently, the first on-off structure 15 is closed, and the second on-off structure 16 is opened. The hot water after heat exchange through the heat network first station system 3 enters the second liquid conveying equipment 7 through the fourth pipeline 20, and then enters the first heat exchanger 6 to absorb heat, and enters the heat network first station system 3 through the second on-off structure 16 to provide heat for the primary network return water.

[0048] In this embodiment, the first on-off structure 15 and the second on-off structure 16 are both solenoid valves.

[0049] The solenoid valve has the advantages of fast response speed, high safety, strong applicability and energy saving. Therefore, the solenoid valve is set and applied on the first pipeline 17 and the third pipeline 19 to facilitate rapid opening or closing.

[0050] The swimming pool type low temperature nuclear energy heating system further comprises a manual valve (not shown in the figure), which is arranged on the first pipeline 17 and the third pipeline 19 .

[0051] The manual valve can be used when the solenoid valve is damaged or cannot work normally, thereby ensuring the normal flow of liquid and the normal operation and use of multiple heat exchangers.

[0052] In this embodiment, the first liquid delivery device 5, the second liquid delivery device 7, the third liquid delivery device 9, and the fourth liquid delivery device 14 are all water pumps.

[0053] The water pump has the advantages of wide application range, stable performance, energy saving and easy maintenance. The high-efficiency water pump can save energy, reduce operating costs, and has a long service life.

[0054] When the heating of the swimming pool-type nuclear reactor 4 and the green power electric boiler 8 does not meet the needs of the heat users 23, that is, the temperature of the annular heating network 21 is low and it is difficult to meet the needs of the subsequent secondary network heat exchange station 22, an air source heat pump 25 is constructed to provide the heating hot water temperature of the annular heating network 21.

[0055] In order to improve the efficiency of the swimming pool type nuclear reactor 4, the influence of the change of user end heat load under the climate, weather, morning and evening time on the operation efficiency of the small shell type nuclear reactor can be reduced.

[0056] Provided is an integrated urban heating system, comprising a swimming pool-type low-temperature nuclear energy heating system, and further comprising: a ring-shaped heating network 21, wherein the heat network first station system 3 is connected to the ring-shaped heating network 21; a secondary network heat exchange station 22, which has multiple, multiple secondary network heat exchange stations 22 are arranged on the ring-shaped heating network 21, and the secondary network heat exchange station 22 is connected to a heat user 23; an air source heat pump heat exchange station 24, which is connected to the ring-shaped heating network 21, and the air source heat pump heat exchange station 24 is connected to an air source heat pump 25.

[0057] In order to ensure that the heat extracted by the second network heat exchange station 22 from the annular heating network 21 can meet user needs, the heat exchange flow is controlled through the cooperation of the air source heat pump heat exchange station 24 and the air source heat pump 25 to ensure that the heat meets user needs.

[0058] In this embodiment, there are three second-network heat exchange stations 22. Of course, the specific number of second-network heat exchange stations 22 can be set according to actual conditions.

[0059] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A swimming pool type low temperature nuclear energy heating system, characterized in that: include: Low temperature swimming pool nuclear reactor system (1) and electric boiler heating system (2), heating network head station system (3); The low-temperature swimming pool nuclear reactor system (1) comprises a swimming pool type nuclear reactor (4), a first liquid conveying device (5), a first heat exchanger (6), and a second liquid conveying device (7); the swimming pool type nuclear reactor (4) is connected to the first heat exchanger (6); one end of the first liquid conveying device (5) is connected to the swimming pool type nuclear reactor (4), and the other end is connected to the first heat exchanger (6); one end of the second liquid conveying device (7) is connected to the first heat exchanger (6), and the other end is connected to the first station system (2) of the heat network; The electric boiler heating system (2) comprises a green electric boiler (8), a third liquid conveying device (9), and a second heat exchanger (10); the green electric boiler (8) is connected to the second heat exchanger (10), and the third liquid conveying device (9) is arranged between the green electric boiler (8) and the second heat exchanger (10); The heating network first station system (3) comprises a third heat exchanger (11), a heating network return pipe (12), a heating network heat supply pipe (13), and a fourth liquid conveying device (14); one end of the third heat exchanger (11) is provided with the heating network return pipe (12), and the other end is provided with the heating network heat supply pipe (13); the fourth liquid conveying device (14) is provided on the heating network return pipe (12); and the third heat exchanger (11) is connected to the second liquid conveying device (7); A first on-off structure (15) and a second on-off structure (16), wherein the first on-off structure (15) is arranged between the first heat exchanger (6) and the second heat exchanger (10), and the second on-off structure (16) is arranged between the first heat exchanger (6) and the third heat exchanger (11).

2. A swimming pool type low temperature nuclear energy heating system according to claim 1, characterized in that: A first pipeline (17) is provided between the first heat exchanger (6) and the second heat exchanger (10), and a first on-off structure (15) is provided on the first pipeline (17).

3. A swimming pool type low temperature nuclear energy heating system according to claim 2, characterized in that: A second pipeline (18) is provided between the second heat exchanger (10) and the third heat exchanger (11), and a second on-off structure (16) is provided on the third pipeline (19) between the first pipeline (17) and the second pipeline (18).

4. A swimming pool type low temperature nuclear energy heating system according to claim 3, characterized in that: A fourth pipeline (20) is provided between the first heat exchanger (6) and the third heat exchanger (11), and the second liquid delivery device (7) is provided on the fourth pipeline (20).

5. A swimming pool type low temperature nuclear energy heating system according to claim 4, characterized in that: The first on-off structure (15) and the second on-off structure (16) are both solenoid valves.

6. A swimming pool type low temperature nuclear energy heating system according to claim 5, characterized in that: It also includes a manual valve, which is arranged on the first pipeline (17) and the third pipeline (19).

7. A swimming pool type low temperature nuclear energy heating system according to any one of claims 1 to 6, characterized in that: The first liquid conveying device (5), the second liquid conveying device (7), the third liquid conveying device (9), and the fourth liquid conveying device (14) are all water pumps.

8. An integrated urban heating system, characterized in that: A swimming pool type low-temperature nuclear energy heating system comprising any one of claims 1-7.

9. The urban integrated heating system according to claim 8, characterized in that: Also includes: A ring-shaped heating pipe network (21), wherein the heating network first station system (2) is connected to the ring-shaped heating pipe network (21); The secondary network heat exchange station (22) has a plurality of them, and the plurality of secondary network heat exchange stations (22) are arranged on the annular heat supply pipe network (21), and the secondary network heat exchange station (22) is connected to the heat user (23); The air source heat pump heat exchange station (24) is connected to the annular heating pipe network (21), and the air source heat pump heat exchange station (24) is connected to the air source heat pump (25).

10. The urban integrated heating system according to claim 9, characterized in that: There are three secondary heat exchange stations (22).