Arrangement method based on research pile test loop modularization system

Abstract

A modular system arrangement method based on a research pile test loop relates to the technical field of process systems, and comprises the following steps: acquiring all equipment required by a test loop system; the method comprises the following steps: identifying functional units corresponding to a plurality of single devices according to a process flow of a test loop, and taking any functional unit and all devices in a physical boundary thereof as a modular primary unit; according to the function of each subsystem of the test loop, taking all modular primary units and corresponding connecting pipelines in the physical boundary of the subsystem as a modular secondary unit; any modular secondary unit is correspondingly installed in a process chamber, and finally the multiple modular secondary units form a test loop system through connecting pipelines. And the arrangement of the test system can be quickly and reasonably completed.

Description

Technical Field

[0001] The invention relates to the technical field of process systems, and in particular to a modular system layout method based on a research reactor test loop. Background Art

[0002] The research reactor test loop, also known as the irradiation test loop, is a fuel element performance verification platform that uses equipment and piping systems as carriers, instrumentation and electrical systems as control methods, and irradiation devices to complete irradiation tests of fuel elements, providing the fuel elements with real operating conditions within the reactor.

[0003] The test circuit is mainly composed of a closed primary circuit system and an open secondary circuit system. The primary circuit is used to release the heat from the components in the device, and the secondary circuit serves as the final heat sink to complete heat exchange with the primary circuit in the main heat exchanger and take away the released heat.

[0004] In addition, the loop also includes a water quality regulation system (purification system), an emergency cooling system (safety injection system), a fuel damage detection system (damage detection system), a loop damage monitoring system (nitrogen leak detection system), a loop water replenishment system (water replenishment system), a loop cleaning system (decontamination system), and a large number of auxiliary systems such as the supporting equipment circuit system (electrical system) and loop control system (instrumentation and control system).

[0005] As a radioactive system, the irradiation test circuit is usually installed in a closed process room with a shielding effect. Due to the limited space in the closed process room and the large number of test circuit equipment, pipelines and instrumentation and control facilities, the rational use of limited space is a major problem in the layout of the test circuit system.

[0006] In addition, as a radioactive system, radiation protection for operators is an important consideration for the layout of the test loop system. How to effectively reduce the radiation dose of operators during the operation of the loop is another difficult problem in the layout of the test loop system. At the same time, there are a large number of control valves and equipment that need to be operated in the irradiation test loop. Whether the operators have reasonable operating space is a key evaluation indicator for testing whether the layout of the test loop system is reasonable. Therefore, the system layout of the test loop is a comprehensive design with diversified design elements.

[0007] Although professional three-dimensional digital design tools have been introduced for the system layout of test loops at this stage, which has greatly improved the efficiency of test loop system layout modeling and effectively avoided equipment interference problems during system layout, professional digital design software only provides effective modeling means. There is still a lack of effective system layout methods in the field of research reactor test loop system layout, and the difficulty of test loop system layout can be reduced by combining diversified design factors.

[0008] In addition, for the irradiation test loop system, its subsystems are highly correlated and pipelines are intertwined, which has the characteristic of "one move affects the whole body". Any local adjustment during the system layout process will cause huge adjustments and modifications to the test loop system layout, seriously affecting the design efficiency.

[0009] A process system pipeline layout method disclosed in a Chinese patent (CN106887260B) can quickly, accurately, and clearly find out the key work areas of the overall process system pipeline layout during the complex process system layout process, and then arrange the priorities of the pipeline layout work of each part, and finally achieve the purpose of carrying out the pipeline layout work in an orderly manner; however, there are too many judgment conditions in the implementation process of this method, which leads to low efficiency of pipeline layout using this method, and for the irradiation test circuit, this method lacks corresponding judgment on the safety and radiation protection of the system, so that this layout method is difficult to use for the irradiation test circuit;

[0010] Therefore, we provide a fast and reasonable method for system layout. Summary of the invention

[0011] In order to overcome the deficiencies in the background technology, the present invention discloses a modular system layout method based on a research reactor test loop.

[0012] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0013] A modular system layout method based on a research reactor test loop, the specific steps are:

[0014] Obtain all equipment needed to test the loop system;

[0015] According to the process flow of the test loop, the functional units corresponding to multiple single devices are identified, and any functional unit and all the devices within its physical boundary are regarded as a modular first-level unit;

[0016] According to the functions of each subsystem of the test loop, all modular primary units and corresponding connecting pipelines within the physical boundary of the subsystem are regarded as a modular secondary unit;

[0017] Each modular secondary unit is installed in a corresponding process room;

[0018] Finally, multiple modular secondary units are connected by pipes to form a test loop system.

[0019] Preferably, the process chamber includes multiple process rooms, and the multiple process rooms are divided into earthquake-resistant high-dose process rooms, earthquake-resistant low-dose process rooms, earthquake-resistant non-radiation process rooms, non-earthquake-resistant high-dose process rooms, non-earthquake-resistant low-dose process rooms and non-earthquake-resistant non-radiation process rooms according to the process types.

[0020] Preferably, the equipment contained in each modular primary unit in the modular secondary unit is installed in a corresponding process room according to the corresponding process characteristics of the equipment.

[0021] Preferably, the equipment located in the same process room has its position in the process room determined according to the operation mode and frequency of the equipment.

[0022] Preferably, the modular primary unit is arranged in a semi-open surround design in the workshop.

[0023] Preferably, a distance of 300 to 500 mm is set between the modular primary unit and the wall of the process room.

[0024] Preferably, the connecting pipes between the equipment in the modular primary unit are laid along the wall to form a connecting pipe gallery.

[0025] Preferably, the reserved interface pipeline of the modular primary unit is in a direction perpendicular to the wall of the process room.

[0026] Preferably, the geometric shape of the process room is a regular polygon.

[0027] Preferably, the geometric shape of the process room is a square or a rectangle.

[0028] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects:

[0029] The present invention discloses a modular system layout method based on a research reactor test loop, which forms a process design step for the layout of the test loop system through a two-level modular design, reduces the difficulty of arranging a complex test loop system, and forms a systematic layout method;

[0030] In addition, the functional unit integrity of the single equipment is used as the modular primary unit to ensure the structural and functional integrity of the modular primary unit, find a fast and effective design approach for the layout of complex systems, and improve the layout design independence of the equipment and facilities in the unit within the test loop system;

[0031] In addition, in the process of modular primary unit design, the semi-open surround design method can provide redundant space for the installation and maintenance of equipment, pipelines, instrumentation and control valves, and process measurement signals, which can reduce the impact of local adjustments on the overall system during system layout;

[0032] In addition, the layout design of the process room fully considers design factors such as equipment item classification and radiation protection. By classifying the civil engineering types of multiple process rooms and arranging each modular primary unit through physical isolation, the safety of loop operation can be improved and the radiation dose of operation and maintenance personnel can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A structural schematic diagram of the present invention;

[0034] Figure 2 A schematic diagram of the two-stage modular design of the test loop;

[0035] Figure 3 Schematic diagram of the distribution method of modular secondary units in the process room.

[0036] In the figure: 1. Modular primary unit; 2. Modular secondary unit. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right" and the like indicating directions or positional relationships, they are only corresponding to the drawings of the present invention, for the convenience of describing the present invention, and do not indicate or imply that the devices or components referred to must have a specific direction:

[0038] Embodiment 1 is:

[0039] Combined with Figure 1-2 The modular system layout method based on the research reactor test loop comprises the following specific steps:

[0040] Obtain all equipment required for the test loop system, including the individual equipment itself, as well as the measurement facilities, control valves and pipelines related to each individual equipment;

[0041] According to the process flow of the test loop, the functional units corresponding to multiple single devices are identified, and any functional unit and all devices within its physical boundaries are regarded as a modular primary unit 1. The modular division in this way ensures the integrity of the function and structure of the modular primary unit 1, and provides a clear design entry for the rapid decomposition of complex systems.

[0042] Specifically, the functional units in the modular primary unit and all equipment within its physical boundaries, including the single equipment body, process measurement facilities for measuring the operating parameters of the single equipment, control valves for switching the operating status of the single equipment, and connecting pipelines; the single equipment includes a pressure relief tank, a pressure stabilizer, a main heat exchanger, and a main circulation pump, etc.;

[0043] According to the functions of each subsystem of the test loop, all the modular primary units 1 and the corresponding connecting pipelines within the physical boundary of the subsystem are regarded as a modular secondary unit 2; the division in this way ensures the functional and structural integrity of the modular secondary unit 2;

[0044] The modular secondary units include the modular primary units that realize the test circuit subsystem and the corresponding connecting pipelines; specifically, the secondary modular units of the main system, the secondary modular units of the purification system and the secondary modular units of the secondary water system;

[0045] Each modular secondary unit 2 is installed in a process room; the process room is a physical safety protection facility that can provide protection for the equipment involved in the modular secondary unit 2;

[0046] Finally, a test loop system is formed between the multiple modular secondary units 2 through connecting pipes.

[0047] Embodiment 2 is:

[0048] On the basis of Example 1, the structure of the process chamber is further limited, that is, the process chamber includes multiple process rooms, and the multiple process rooms are divided into earthquake-resistant high-dose process rooms, earthquake-resistant low-dose process rooms, earthquake-resistant non-radiation process rooms, non-earthquake-resistant high-dose process rooms, non-earthquake-resistant low-dose process rooms, and non-earthquake-resistant non-radiation process rooms according to process types;

[0049] This classification method is designed based on the unique seismic and radioactive requirements of the test circuit equipment. It should be noted that high dose refers to the dose of radioactive substances, that is, the seismic high-dose process room is a process room that can resist vibration and prevent leakage of high-radioactive substances;

[0050] In addition, the equipment contained in each modular primary unit 1 in the modular secondary unit 2 is installed in the corresponding process room according to the process characteristics corresponding to the equipment; however, different single equipment or equipment has different process characteristics, some single equipment or equipment has earthquake resistance requirements, but has high radioactivity, some single equipment or equipment has earthquake resistance requirements, but has only low radioactivity, some single equipment or equipment has earthquake resistance requirements, but does not have radioactivity, some single equipment or equipment has no earthquake resistance requirements, and has high radioactivity, some single equipment or equipment has no earthquake resistance requirements, and has only low radioactivity, some single equipment or equipment has no earthquake resistance requirements, and does not have radioactivity; so for the corresponding single equipment or equipment, when performing on-site installation and layout, it will be set in the corresponding process room; thus, on the one hand, it can be convenient to determine the installation position of each single equipment or equipment, on the other hand, because the process room with earthquake resistance and anti-leakage function of radioactive substances has a high production cost, and not all equipment has radioactivity or needs earthquake resistance, so the process rooms of different process types are used to install equipment with corresponding requirements, which can further improve the rationality of equipment installation and layout, and has the purpose of reducing costs.

[0051] As needed, the equipment located in the same process room shall have its position determined in the process room according to the operation mode and frequency of the equipment. According to the operation mode and frequency of the equipment, all equipment can be divided into: equipment that needs to be operated frequently, equipment that operates for a long time, and equipment that operates in an emergency. Equipment that needs to be operated frequently is generally installed near the door of the corresponding process room due to its high frequency of use. Equipment that operates for a long time is generally installed in the inner part of the corresponding process room, while equipment that operates in an emergency is generally installed in the middle of the corresponding process room.

[0052] Embodiment 3 is:

[0053] On the basis of Example 2, the specific installation layout of the modular primary unit 1 in the process room is further limited. The modular primary unit 1 is arranged in the workshop with a semi-open surround design, that is, when the nearby connected pipelines are arranged in the modular primary unit 1, they are laid around the equipment according to the equipment's overall dimensions and nozzle orientation, and at least 1 / 4 of the side equipment space is reserved.

[0054] In addition, a spacing of 300 to 500 mm is set between the modular primary unit 1 and the wall of the process room for laying connecting pipes between the primary units, further increasing the space utilization rate of the process room; in addition, the direction of the reserved interface pipe of the modular primary unit 1 is perpendicular to the wall of the process room, which facilitates the connection between the connecting pipe and the modular primary unit 1.

[0055] As needed, the connecting pipes between the equipment in the modular primary unit 1 are laid along the wall to form a connecting pipe gallery. The pipe gallery method can make the laying of a large number of connecting pipes neat and beautiful. The elevation and size of the pipe gallery are determined according to the size and number of the connecting pipes.

[0056] In addition, the geometric shape of the process room is a regular polygon, usually a rectangle or a square. Since the envelope size of the modular primary unit 1 is a regular quadrilateral, the process room adopts this shape to have higher space utilization and is convenient for the laying of pipes and supports.

[0057] Combined with Figure 3 , an example of process room allocation of a modular secondary unit 2 is given, and the specific allocation method of the modular secondary unit 2 of the main system is:

[0058] 1) All devices of the modular secondary unit 2 are divided into safety level and non-safety level to obtain safety level devices and non-safety level devices;

[0059] 2) Safety-level equipment is divided into radioactive and non-radioactive types to obtain safety-level radioactive equipment and safety-level non-radioactive equipment;

[0060] 3) Classify non-safety-level equipment according to radioactivity and non-radioactivity, and obtain non-safety-level radioactive equipment and non-safety-level non-radioactive equipment;

[0061] 4) Safety-level radioactive equipment, safety-level non-radioactive equipment, non-safety-level radioactive equipment and non-safety-level non-radioactive equipment shall be installed and arranged in earthquake-resistant high-dose process rooms, earthquake-resistant low-dose process rooms, earthquake-resistant non-radioactive process rooms, non-earthquake-resistant high-dose process rooms, non-earthquake-resistant low-dose process rooms and non-earthquake-resistant non-radioactive process rooms respectively.

[0062] It should be noted that the safety-level radioactive equipment is installed and arranged in the earthquake-resistant high-dose process room or the earthquake-resistant low-dose process room according to the amount of radioactive substances;

[0063] Safety-grade non-radioactive equipment is installed in earthquake-resistant non-radioactive process rooms;

[0064] Non-safety-grade radioactive equipment shall be installed and arranged in non-seismic high-dose process rooms or non-seismic low-dose process rooms according to the amount of radioactive substances;

[0065] Non-safety-level non-radioactive equipment is installed and arranged in non-seismic and non-radioactive process rooms.

[0066] In addition, after completing the allocation of each equipment and process room in step 4), the positions in the process room are arranged according to whether the equipment in each process room is equipment that needs to be frequently operated, equipment that is in long-term operation, or equipment that is in emergency operation.

[0067] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

Claims

1. A modular system layout method based on a research reactor test loop, characterized by: Specific steps for: Obtain all equipment needed to test the loop system; According to the process flow of the test loop, functional units corresponding to multiple single devices are identified, and any functional unit and all devices within its physical boundary are regarded as a modular primary unit (1); According to the functions of each subsystem of the test loop, all modular primary units (1) and corresponding connecting pipelines within the physical boundary of the subsystem are regarded as a modular secondary unit (2); Each modular secondary unit (2) is correspondingly installed in a process room; Finally, a test loop system is formed between the plurality of modular secondary units (2) through connecting pipes.

2. The modular system layout method based on the research reactor test loop according to claim 1 is characterized by: The process chamber includes multiple process rooms, and the multiple process rooms are divided into earthquake-resistant high-dose process rooms, earthquake-resistant low-dose process rooms, earthquake-resistant non-radiation process rooms, non-earthquake-resistant high-dose process rooms, non-earthquake-resistant low-dose process rooms and non-earthquake-resistant non-radiation process rooms according to process types.

3. The method for arranging a modular system based on a research reactor test loop according to claim 2, characterized in that: The equipment contained in each modular primary unit (1) in the modular secondary unit (2) is installed in a corresponding process room according to the process characteristics corresponding to the equipment.

4. The method for arranging a modular system based on a research reactor test loop according to claim 3, characterized in that: The position of the equipment located in the same process room is determined according to the operation mode and frequency of the equipment.

5. The method for arranging a modular system based on a research reactor test loop according to claim 3, characterized in that: The modular primary unit (1) adopts a semi-open surround design when arranged in a workshop.

6. The method for arranging a modular system based on a research reactor test loop according to claim 3, characterized in that: A spacing of 300 to 500 mm is provided between the modular primary unit (1) and the wall of the corresponding process room.

7. The method for arranging a modular system based on a research reactor test loop according to claim 3, characterized in that: The connecting pipes between the devices in the modular primary unit (1) are laid along the wall to form a connecting pipe gallery.

8. The method for arranging a modular system based on a research reactor test loop according to claim 3, characterized in that: The reserved interface pipeline of the modular primary unit (1) is in a direction perpendicular to the wall of the process room.

9. The method for arranging a modular system based on a research reactor test loop according to claim 2, characterized in that: The geometric shape of the process room is a regular polygon.

10. The modular system layout method based on the research reactor test loop according to claim 2, characterized in that: The geometric shape of the process room is specifically a square or a rectangle.

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