Containment temperature control system
By adjusting the internal and external temperatures of the containment through the containment temperature control system, the problem of temperature control during containment pressure testing was solved, achieving temperature range stability and cost-effectiveness.
Patent Information
- Application Number
- CN202423096568.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-16
AI Technical Summary
During containment pressure testing, it is difficult to maintain the air inside the containment and the temperature outside the containment within the safe range of 10°C to 40°C, which leads to a decrease in material toughness and the risk of brittle fracture. Furthermore, waiting for the ambient temperature to become suitable will cause delays in the project schedule.
Design a containment temperature control system, including an internal temperature control subsystem and an external temperature control subsystem. The internal and external temperatures of the containment are regulated through a cold water subsystem and a hot water subsystem. The inflow rate is regulated by a temperature sensor and a controller to ensure that the temperature is within a safe range.
Effectively maintain the internal and external temperatures of the containment within a reasonable range, avoid the risk of brittle fracture, simplify the system structure, and reduce production costs.
Smart Images
Figure CN223857880U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to nuclear power technology field especially relates to a containment temperature control system. BACKGROUND
[0002] At present, as the third safety barrier of passive nuclear power plant, the containment needs to be pressure tested before the nuclear power plant is put into operation after the construction of the containment is completed to verify the safety function of the containment and to test its reliability.
[0003] Generally, the temperature of the air in the containment and the outside of the containment is required to be kept between 10 DEG C and 40 DEG C during the pressure test of the containment, because the toughness of the material for making the containment usually decreases with the decrease of the temperature, and when the temperature is below 10 DEG C, the toughness of the material will decrease sharply, and the ability of the material to absorb crack propagation energy and resist crack propagation is very low, so brittle fracture accidents are prone to occur when the pressure test of the containment is carried out, and waiting for suitable environmental temperature will cause delay of the construction period. Therefore, in order to ensure that the pressure test of the containment can be carried out on schedule and to avoid brittle fracture of the containment caused by too low temperature, a temperature control system is needed to keep the temperature of the air in the containment and the outside of the containment within a safe range to eliminate the influence of environmental temperature on the pressure test of the containment. SUMMARY
[0004] The utility model discloses a kind of containment temperature control systems, ensure that the temperature of the air in the containment and the outside of the containment is kept within a safe range during the pressure test of the containment.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A containment temperature control system, comprising:
[0007] The inner-shell temperature control subsystem includes an inner-shell main water inlet pipeline, an inner-shell main water outlet pipeline, a first regulating valve and an inner-shell temperature control assembly. The inner-shell temperature control assembly is located in the cavity of the containment. One end of the inner-shell main water inlet pipeline penetrates into the cavity of the containment and is in communication with the water inlet of the inner-shell temperature control assembly. One end of the inner-shell main water outlet pipeline is in communication with the water outlet of the inner-shell temperature control assembly. The first regulating valve is arranged on the inner-shell main water inlet pipeline and can regulate the water inflow into the inner-shell main water inlet pipeline.
[0008] The shell outside temperature control subsystem comprises a shell outside main water inlet pipeline, a shell outside main water outlet pipeline, a second regulating valve and a shell outside temperature control assembly. The shell outside temperature control assembly is located outside the shell of the safety shell. One end of the shell outside main water inlet pipeline is communicated with a water inlet of the shell outside temperature control assembly. One end of the shell outside main water outlet pipeline is communicated with a water outlet of the shell outside temperature control assembly. The second regulating valve is arranged on the shell outside main water inlet pipeline and can regulate the water inlet amount of the shell outside main water inlet pipeline.
[0009] The cold water subsystem is communicated with the water inlet of the shell inside main water inlet pipeline and can deliver cold water to the shell inside main water inlet pipeline. The water outlet of the cold water subsystem is also communicated with the water inlet of the shell outside main water inlet pipeline and can deliver cold water to the shell outside main water inlet pipeline.
[0010] The hot water subsystem is communicated with the water inlet of the shell inside main water inlet pipeline and can deliver hot water to the shell inside main water inlet pipeline. The water outlet of the hot water subsystem is also communicated with the water inlet of the shell outside main water inlet pipeline and can deliver hot water to the shell outside main water inlet pipeline.
[0011] Optionally, the shell inside temperature control assembly comprises a first temperature regulating member and a first air pipe which are communicated with each other. The water inlet of the first temperature regulating member is communicated with one end of the shell inside main water inlet pipeline. The water outlet of the first temperature regulating member is communicated with one end of the shell inside main water outlet pipeline. The water passing through the first temperature regulating member can exchange heat with the air flowing through the first temperature regulating member. The air after heat exchange enters the first air pipe. The first air pipe delivers hot air or cold air into the cavity of the safety shell.
[0012] Optionally, the first temperature regulating member is multiple. The multiple first temperature regulating members are arranged in parallel and communicated with the first air pipe.
[0013] Optionally, the shell outside temperature control assembly comprises a second temperature regulating member and a second air pipe which are communicated with each other. The water inlet of the second temperature regulating member is communicated with one end of the shell outside main water inlet pipeline. The water outlet of the second temperature regulating member is communicated with one end of the shell outside main water outlet pipeline. The water passing through the second temperature regulating member can exchange heat with the air flowing through the second temperature regulating member. The air after heat exchange enters the second air pipe. The second air pipe delivers hot air or cold air into the ring corridor outside the shell of the safety shell.
[0014] Optionally, the cold water subsystem comprises an in-shell cold water return pipeline, an out-shell cold water return pipeline, a cold water delivery assembly and a first expansion water tank, one end of the in-shell cold water return pipeline and a water outlet of the in-shell main water outlet pipeline are in communication, one end of the out-shell cold water return pipeline and a water outlet of the out-shell main water outlet pipeline are in communication, the other end of the in-shell cold water return pipeline and the other end of the out-shell cold water return pipeline are both in communication with one end of the cold water delivery assembly;
[0015] The other end of the cold water delivery assembly is in communication with a water inlet of the in-shell main water inlet pipeline, and the other end of the cold water delivery assembly is also in communication with a water inlet of the out-shell main water inlet pipeline;
[0016] The first expansion water tank is arranged on the in-shell cold water return pipeline.
[0017] Optionally, the cold water delivery assembly comprises a cold water delivery pump and a refrigeration regulating component, a water inlet of the cold water delivery pump is in communication with a water outlet of the in-shell cold water return pipeline, and the water inlet of the cold water delivery pump is also in communication with a water outlet of the out-shell cold water return pipeline;
[0018] A water outlet of the cold water delivery pump and a water inlet of the refrigeration regulating component are in communication, a water outlet of the refrigeration regulating component is in communication with a water inlet of the in-shell main water inlet pipeline, and the water outlet of the refrigeration regulating component is also in communication with a water inlet of the out-shell main water inlet pipeline.
[0019] Optionally, the cold water delivery assembly is provided with multiple groups, the refrigeration regulating components in multiple groups of the cold water delivery assembly are at least partially different, and the refrigeration regulating components at least comprise air-cooled units and water-cooled units.
[0020] Optionally, the hot water subsystem comprises an in-shell hot water return pipeline, an out-shell hot water return pipeline, a hot water delivery assembly and a second expansion water tank, one end of the in-shell hot water return pipeline and a water outlet of the in-shell main water outlet pipeline are in communication, one end of the out-shell hot water return pipeline and a water outlet of the out-shell main water outlet pipeline are in communication, the other end of the in-shell hot water return pipeline and the other end of the out-shell hot water return pipeline are both in communication with one end of the hot water delivery assembly;
[0021] The other end of the hot water delivery assembly is in communication with a water inlet of the in-shell main water inlet pipeline, and the other end of the hot water delivery assembly is also in communication with a water inlet of the out-shell main water inlet pipeline;
[0022] The second expansion water tank is arranged on the in-shell hot water return pipeline.
[0023] Optionally, the hot water delivery assembly comprises a hot water delivery pump and a heat exchanger, the water inlet of the hot water delivery pump is communicated with the water outlet of the in-containment hot water return pipeline, and the water inlet of the hot water delivery pump is also communicated with the water outlet of the out-of-containment hot water return pipeline;
[0024] The water outlet of the hot water delivery pump is communicated with the water inlet of the heat exchanger, the water outlet of the heat exchanger is communicatable with the water inlet of the in-containment main water inlet pipeline, and the water outlet of the heat exchanger is also communicatable with the water inlet of the out-of-containment main water inlet pipeline.
[0025] Optionally, the in-containment temperature control subsystem further comprises a plurality of first temperature sensors, the plurality of first temperature sensors are distributed on the inner wall of the containment, and are used for detecting the temperature at each position in the in-containment cavity.
[0026] The out-of-containment temperature control subsystem further comprises a plurality of second temperature sensors, the plurality of second temperature sensors are distributed on the outer wall of the containment, and are used for detecting the temperature at each position in the out-of-containment annular corridor.
[0027] The utility model discloses beneficial effects are:
[0028] The utility model provides a containment temperature control system, it includes in-containment temperature control subsystem, out-of-containment temperature control subsystem, cold water subsystem and hot water subsystem, and through cold water subsystem, hot water subsystem according to actual demand to in-containment temperature control subsystem delivery cold water / hot water, to adjust the temperature in the containment cavity, and the first control valve is set on the in-containment main water inlet pipeline, so as to control the water amount of in-containment main water inlet pipeline, and then realize the purpose of controlling the temperature in the containment cavity, and through cold water subsystem, hot water subsystem according to actual demand to out-of-containment temperature control subsystem delivery cold water / hot water, to adjust the temperature in the out-of-containment annular corridor, and the second control valve is set on the out-of-containment main water inlet pipeline, so as to control the water amount of out-of-containment main water inlet pipeline, and then realize the purpose of controlling the temperature in the out-of-containment annular corridor. Through the above setting, it can ensure that the temperature in the containment cavity and the out-of-containment annular corridor is in a reasonable range when the ambient temperature is below 10 DEG C, thereby avoiding the delay of construction period, and the in-containment temperature control subsystem and the out-of-containment temperature control subsystem share a cold water subsystem and a hot water subsystem, which simplifies the system structure and reduces the production cost. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 It is the schematic view of the utility model embodiment containment temperature control system arrangement on the containment.
[0030] In the drawing:
[0031] 1, shell temperature control subsystem; 11, shell main water inlet pipeline; 111, first check valve; 112, first isolation valve; 113, first containment penetration; 114, second isolation valve; 12, shell main water outlet pipeline; 121, third isolation valve; 122, second containment penetration; 123, fourth isolation valve; 124, fifth isolation valve; 125, sixth isolation valve; 13, first regulating valve; 14, shell temperature control assembly; 141, first temperature regulating member; 142, first air pipe; 15, first controller; 16, first temperature sensor;
[0032] 2, shell temperature control subsystem; 21, shell main water inlet pipeline; 211, second check valve; 22, shell main water outlet pipeline; 221, seventh isolation valve; 222, eighth isolation valve; 23, second regulating valve; 24, shell temperature control assembly; 241, second temperature regulating member; 242, second air pipe; 25, second controller; 26, second temperature sensor;
[0033] 3, cold water subsystem; 31, shell cold water return pipeline; 32, shell cold water return pipeline; 33, cold water delivery assembly; 331, cold water delivery pump; 332, refrigeration regulating member; 333, third check valve; 334, ninth isolation valve; 335, tenth isolation valve; 34, first expansion tank;
[0034] 4, hot water subsystem; 41, shell hot water return pipeline; 42, shell hot water return pipeline; 43, hot water delivery assembly; 431, hot water delivery pump; 432, heat exchanger; 433, fourth check valve; 434, eleventh isolation valve; 435, twelfth isolation valve; 44, second expansion tank;
[0035] 5, containment. DETAILED DESCRIPTION
[0036] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.
[0037] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0038] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "over" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.
[0039] In the description of the present application, the terms "up", "down", "right", "left", etc. are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.
[0040] As shown in Figure 1 The present application provides a containment temperature control system, which comprises an in-containment temperature control subsystem 1, an out-containment temperature control subsystem 2, a cold water subsystem 3 and a hot water subsystem 4. The in-containment temperature control subsystem 1 is used to adjust the temperature in the inner cavity of the containment 5, the out-containment temperature control subsystem 2 is used to adjust the temperature in the outer ring corridor of the containment 5, the cold water subsystem 3 is used to deliver cold water to the in-containment temperature control subsystem 1 and the out-containment temperature control subsystem 2, and the hot water subsystem 4 is used to deliver hot water to the in-containment temperature control subsystem 1 and the out-containment temperature control subsystem 2.
[0041] The cold water and hot water input into the in-containment temperature control subsystem 1 are respectively converted into cold air and hot air, which in turn adjusts the temperature in the inner cavity of the containment 5 to drop or rise, so that the inner cavity temperature of the containment 5 is within a safe range. The cold water and hot water input into the out-containment temperature control subsystem 2 are respectively converted into cold air and hot air, which in turn adjusts the temperature in the outer ring corridor of the containment 5 to drop or rise, so that the temperature in the outer ring corridor of the containment 5 is within a safe range. The above arrangement effectively solves the problem that the temperature in the inner cavity of the containment 5 and the temperature in the outer ring corridor of the containment 5 cannot be guaranteed within a safe range during the pressurization test of the containment 5 in the prior art. At the same time, the in-containment temperature control subsystem 1 and the out-containment temperature control subsystem 2 share one cold water subsystem 3 and one hot water subsystem 4, which simplifies the system structure and reduces the production cost.
[0042] As shown in Figure 1As shown, the in-vessel temperature control subsystem 1 in the embodiment includes an in-vessel main water inlet pipeline 11, an in-vessel main water outlet pipeline 12, a first regulating valve 13 and an in-vessel temperature control assembly 14. The in-vessel temperature control assembly 14 is located in the cavity of the containment 5, one end of the in-vessel main water inlet pipeline 11 penetrates into the cavity of the containment 5 and is in communication with the water inlet of the in-vessel temperature control assembly 14, the water outlet of the in-vessel temperature control assembly 14 is in communication with the water inlet of the in-vessel main water outlet pipeline 12, and the first regulating valve 13 is arranged on the in-vessel main water inlet pipeline 11, so as to adjust the water inlet amount of the in-vessel main water inlet pipeline 11 by the first regulating valve 13.
[0043] The water outlet of the cold water subsystem 3 is in communicatable communication with the water inlet of the in-vessel main water inlet pipeline 11, so as to deliver cold water to the in-vessel main water inlet pipeline 11; the water outlet of the hot water subsystem 4 is in communicatable communication with the water inlet of the in-vessel main water inlet pipeline 11, so as to deliver hot water to the in-vessel main water inlet pipeline 11; and the water inlets of the cold water subsystem 3 and the hot water subsystem 4 are in communication with the water outlet of the in-vessel main water outlet pipeline 12.
[0044] Further, the in-vessel temperature control assembly 14 includes a first temperature regulating member 141 and a first air pipe 142 in communication with each other. The water outlet of the in-vessel main water inlet pipeline 11 is in communication with the water inlet of the first temperature regulating member 141, the water outlet of the first temperature regulating member 141 is in communication with the water inlet of the in-vessel main water outlet pipeline 12, the cold water or hot water in the first temperature regulating member 141 exchanges heat with the air in the cavity of the containment 5, the air after heat exchange enters the first air pipe 142 and flows to various places in the cavity of the containment 5 through the first air pipe 142, so as to adjust the temperature of the cavity of the containment 5.
[0045] Optionally, two first temperature regulating members 141 are arranged in the embodiment, the water inlets of the two first temperature regulating members 141 are in communication with the water outlet of the in-vessel main water inlet pipeline 11, the water outlets of the two first temperature regulating members 141 are in communication with the water inlet of the in-vessel main water outlet pipeline 12, that is, the two first temperature regulating members 141 are arranged in parallel, and the two first temperature regulating members 141 are in communication with the first air pipe 142. In this way, the rate of temperature adjustment in the cavity of the containment 5 can be improved.
[0046] It can be understood that in some other embodiments, the number of first temperature regulating members 141 can be arranged according to actual needs, which is not limited herein.
[0047] Further, the first temperature regulating member 141 in the embodiment is an air-cooled unit. The air-cooled unit can realize the effects of refrigeration or heating, and has the advantages of saving water resources, environmental protection, high equipment utilization rate, flexible installation, safety and reliability.
[0048] AsFigure 1 As shown, in the embodiment, a first check valve 111, a first isolation valve 112, a first containment-penetrating member 113 and a second isolation valve 114 are sequentially arranged between the first regulating valve 13 and the water inlet of the first temperature regulating member 141. The first check valve 111 can prevent the water in the main water inlet pipeline 11 from flowing backward. The first isolation valve 112 and the second isolation valve 114 are used to control the connection and disconnection of the pipelines on both sides of the first containment-penetrating member 113. The first containment-penetrating member 113 is a prior art and will not be described here. A third isolation valve 121, a second containment-penetrating member 122 and a fourth isolation valve 123 are sequentially arranged between the water outlet of the first temperature regulating member 141 and the water inlet of the main water outlet pipeline 12. The third isolation valve 121 and the fourth isolation valve 123 are used to control the connection and disconnection of the pipelines on both sides of the second containment-penetrating member 122. The second containment-penetrating member 122 is a prior art and will not be described here.
[0049] As shown in FIG. 1, the in-containment temperature control subsystem 1 includes a main water inlet pipeline 11, a main water outlet pipeline 12, a first regulating valve 13, a first temperature regulating member 141 and a first controller 15. The main water inlet pipeline 11 is connected to the water inlet of the first temperature regulating member 141. The first regulating valve 13 is arranged on the main water inlet pipeline 11. The water outlet of the first temperature regulating member 141 is connected to the main water outlet pipeline 12. Figure 1 As shown, in the embodiment, a first check valve 111, a first isolation valve 112, a first containment-penetrating member 113 and a second isolation valve 114 are sequentially arranged between the first regulating valve 13 and the water inlet of the first temperature regulating member 141. The first check valve 111 can prevent the water in the main water inlet pipeline 11 from flowing backward. The first isolation valve 112 and the second isolation valve 114 are used to control the connection and disconnection of the pipelines on both sides of the first containment-penetrating member 113. The first containment-penetrating member 113 is a prior art and will not be described here. A third isolation valve 121, a second containment-penetrating member 122 and a fourth isolation valve 123 are sequentially arranged between the water outlet of the first temperature regulating member 141 and the water inlet of the main water outlet pipeline 12. The third isolation valve 121 and the fourth isolation valve 123 are used to control the connection and disconnection of the pipelines on both sides of the second containment-penetrating member 122. The second containment-penetrating member 122 is a prior art and will not be described here.
[0050] As shown in FIG. 1, the in-containment temperature control subsystem 1 includes a main water inlet pipeline 11, a main water outlet pipeline 12, a first regulating valve 13, a first temperature regulating member 141 and a first controller 15. The main water inlet pipeline 11 is connected to the water inlet of the first temperature regulating member 141. The first regulating valve 13 is arranged on the main water inlet pipeline 11. The water outlet of the first temperature regulating member 141 is connected to the main water outlet pipeline 12. Figure 1 As shown in FIG. 1, the in-containment temperature control subsystem 1 includes a main water inlet pipeline 11, a main water outlet pipeline 12, a first regulating valve 13, a first temperature regulating member 141 and a first controller 15. The main water inlet pipeline 11 is connected to the water inlet of the first temperature regulating member 141. The first regulating valve 13 is arranged on the main water inlet pipeline 11. The water outlet of the first temperature regulating member 141 is connected to the main water outlet pipeline 12.
[0051] Further, the out-of-shell temperature control assembly 24 comprises a second temperature adjusting element 241 and a second air duct 242 which are in communication with each other. The outlet of the out-of-shell main water inlet pipeline 21 is connected to the inlet of the second temperature adjusting element 241, and the outlet of the second temperature adjusting element 241 is connected to the inlet of the out-of-shell main water outlet pipeline 22. The cold or hot water in the second temperature adjusting element 241 exchanges heat with the air in the vicinity of the out-of-shell annular corridor, and the air after heat exchange enters the second air duct 242 and flows to various positions in the out-of-shell annular corridor through the second air duct 242, thereby achieving the temperature adjustment of the out-of-shell annular corridor.
[0052] Further, the second temperature adjusting element 241 in the embodiment is a fan-cooled unit. The fan-cooled unit can achieve the effects of refrigeration or heating, and has the advantages of saving water resources, environmental protection, high equipment utilization, flexible installation, safety and reliability.
[0053] As shown in Figure 1 , the embodiment further comprises a second check valve 211 between the second adjusting valve 23 and the inlet of the second temperature adjusting element 241, which can prevent the water in the out-of-shell main water inlet pipeline 21 from flowing back.
[0054] As shown in Figure 1 , the embodiment further comprises a second controller 25 and a plurality of second temperature sensors 26, wherein the plurality of second temperature sensors 26 are distributed on the outer side wall of the safety shell 5, thereby detecting the temperature at various positions in the out-of-shell annular corridor through the plurality of second temperature sensors 26. The average value of the safety shell 5 out-of-shell atmospheric temperature is obtained by weighted average of the measurement values of the plurality of second temperature sensors 26, and the valve opening of the second adjusting valve 23 can be controlled by the second controller 25 according to the average value, thereby controlling the amount of hot / cold water flowing into the out-of-shell temperature control subsystem 2.
[0055] As shown in Figure 1As shown, the cold water subsystem 3 in the embodiment includes an in-shell cold water return pipeline 31, an out-shell cold water return pipeline 32 and a cold water delivery assembly 33. The water outlet of the in-shell main water outlet pipeline 12 is in communicable connection with the water inlet of the in-shell cold water return pipeline 31, the water outlet of the in-shell cold water return pipeline 31 is in communication with the water inlet of the cold water delivery assembly 33, the water outlet of the cold water delivery assembly 33 is in communicable connection with the water inlet of the in-shell main water inlet pipeline 11, thereby forming an in-shell cold water circulation loop; the water outlet of the out-shell main water outlet pipeline 22 is in communicable connection with the water inlet of the out-shell cold water return pipeline 32, the water outlet of the out-shell cold water return pipeline 32 is in communication with the water inlet of the cold water delivery assembly 33, the water outlet of the cold water delivery assembly 33 is in communicable connection with the water inlet of the out-shell main water inlet pipeline 21, thereby forming an out-shell cold water circulation loop. The circulation of the cold water can be realized through the in-shell cold water circulation loop and the out-shell cold water circulation loop, thereby saving energy. Meanwhile, the in-shell temperature control subsystem 1 and the out-shell temperature control subsystem 2 share one cold water subsystem 3, which can simplify the system structure and reduce the production cost.
[0056] Further, the cold water delivery assembly 33 includes a cold water delivery pump 331 and a refrigeration adjusting member 332 in communication with each other, and the water outlets of the in-shell cold water return pipeline 31 and the out-shell cold water return pipeline 32 are in communication with the water inlet of the cold water delivery pump 331, the water outlet of the cold water delivery pump 331 is in communication with the water inlet of the refrigeration adjusting member 332, and the water outlet of the refrigeration adjusting member 332 is in communicable connection with the water inlets of the in-shell main water inlet pipeline 11 and the out-shell main water inlet pipeline 21. In this way, the water is delivered to the refrigeration adjusting member 332 through the cold water delivery pump 331, and then the water is converted into cold water by the refrigeration adjusting member 332, and then the cold water is delivered to the in-shell temperature control subsystem 1 or the out-shell temperature control subsystem 2.
[0057] Optionally, two groups of the cold water delivery assembly 33 are arranged in the embodiment, and the two groups of the cold water delivery assembly 33 are arranged in parallel, wherein the refrigeration adjusting member 332 in one group of the cold water delivery assembly 33 is a wind-cooled unit, and the refrigeration adjusting member 332 in the other group of the cold water delivery assembly 33 is a water-cooled unit. In this way, the cooling efficiency can be improved, and the diversity of the cooling mode can be ensured to adapt to different cooling requirements.
[0058] It can be understood that in some other embodiments, the number of the cold water delivery assembly 33 can be arranged according to actual requirements, which is not limited herein. When multiple groups of the cold water delivery assembly 33 are arranged, a part of the refrigeration adjusting members 332 in the multiple groups of the cold water delivery assembly 33 adopt the wind-cooled unit, and the other part of the refrigeration adjusting members 332 adopt the water-cooled unit.
[0059] As shown in FIG. 1, the in-shell temperature control subsystem 1 and the out-shell temperature control subsystem 2 are arranged in the same cabinet, and the in-shell temperature control subsystem 1 and the out-shell temperature control subsystem 2 are arranged in parallel. Figure 1As shown, in the present embodiment, a fifth isolation valve 124 is arranged between the water outlet of the in-shell main water outlet pipeline 12 and the water inlet of the in-shell cold water return pipeline 31, for controlling the on-off of the pipeline between the water outlet of the in-shell main water outlet pipeline 12 and the water inlet of the in-shell cold water return pipeline 31; a seventh isolation valve 221 is arranged between the water outlet of the out-shell main water outlet pipeline 22 and the water inlet of the out-shell cold water return pipeline 32, for controlling the on-off of the pipeline between the water outlet of the out-shell main water outlet pipeline 22 and the water inlet of the out-shell cold water return pipeline 32; a third check valve 333 is arranged between the cold water delivery pump 331 and the refrigeration adjusting member 332, for preventing the backflow of water in the pipeline between the cold water delivery pump 331 and the refrigeration adjusting member 332; a ninth isolation valve 334 is arranged between the water outlet of the refrigeration adjusting member 332 and the water inlets of the in-shell main water inlet pipeline 11 and the out-shell main water inlet pipeline 21, for controlling the on-off of the pipeline at the water outlet of the refrigeration adjusting member 332.
[0060] It should be noted that when the cold water delivery assembly 33 is provided with multiple groups, a tenth isolation valve 335 can also be arranged between the cold water delivery assembly 33 and the water inlets of the in-shell main water inlet pipeline 11 and the out-shell main water inlet pipeline 21, and the tenth isolation valve 335 is a total valve, when any one of the groups of the cold water delivery assembly 33 needs to be opened, not only the ninth isolation valve 334 in the group of the cold water delivery assembly 33 needs to be opened, but also the tenth isolation valve 335 needs to be opened.
[0061] As shown in the figure, Figure 1 As shown, in the present embodiment, the cold water subsystem 3 further comprises a first expansion tank 34, which is arranged on the in-shell cold water return pipeline 31, so that the first expansion tank 34 can adjust the pressure fluctuation in the in-shell cold water return pipeline 31, store and release heat, prevent the in-shell cold water return pipeline 31 from overheating, and prolong the service life of the equipment.
[0062] As shown in the figure, Figure 1As shown, in this embodiment, the hot water subsystem 4 includes an internal hot water return pipe 41, an external hot water return pipe 42, and a hot water delivery assembly 43. The outlet of the internal main outlet pipe 12 is connected to the inlet of the internal hot water return pipe 41, the outlet of the internal hot water return pipe 41 is connected to the inlet of the hot water delivery assembly 43, and the outlet of the hot water delivery assembly 43 is connected to the inlet of the internal main inlet pipe 11, thus forming an internal hot water circulation loop. Similarly, the outlet of the external main outlet pipe 22 is connected to the inlet of the external hot water return pipe 42, the outlet of the external hot water return pipe 42 is connected to the inlet of the hot water delivery assembly 43, and the outlet of the hot water delivery assembly 43 is connected to the inlet of the external main inlet pipe 21, thus forming an external hot water circulation loop. The hot water circulation loops inside and outside the shell can be used to recycle hot water and save energy. At the same time, the hot water subsystem 4 shared by the internal temperature control subsystem 1 and the external temperature control subsystem 2 can simplify the system structure and reduce production costs.
[0063] Furthermore, the hot water delivery assembly 43 includes a hot water delivery pump 431 and a heat exchanger 432 that are interconnected. The outlet of the internal hot water return pipe 41 and the outlet of the external hot water return pipe 42 are both connected to the inlet of the hot water delivery pump 431. The outlet of the hot water delivery pump 431 is connected to the inlet of the heat exchanger 432. The outlet of the heat exchanger 432 is slewably connected to the inlet of the internal main inlet pipe 11 and the inlet of the external main inlet pipe 21. With this configuration, water is delivered to the heat exchanger 432 via the hot water delivery pump 431, where it is converted into hot water, which is then delivered to either the internal temperature control subsystem 1 or the external temperature control subsystem 2.
[0064] like Figure 1 As shown, in this embodiment, a sixth isolation valve 125 is provided between the outlet of the main water outlet pipe 12 inside the shell and the inlet of the hot water return pipe 41 inside the shell, to control the opening and closing of the pipe between the outlet of the main water outlet pipe 12 inside the shell and the inlet of the hot water return pipe 41 inside the shell; an eighth isolation valve 222 is provided between the outlet of the main water outlet pipe 22 outside the shell and the inlet of the hot water return pipe 42 outside the shell, to control the opening and closing of the pipe between the outlet of the main water outlet pipe 22 outside the shell and the inlet of the hot water return pipe 42 outside the shell. On / off; A fourth check valve 433 is also provided between the hot water delivery pump 431 and the heat exchanger 432. The fourth check valve 433 is used to prevent water backflow in the pipeline between the hot water delivery pump 431 and the heat exchanger 432; An eleventh isolation valve 434 and a twelfth isolation valve 435 are provided between the outlet of the heat exchanger 432 and the inlet of the main inlet pipeline 11 inside the shell and the main inlet pipeline 21 outside the shell. The eleventh isolation valve 434 and the twelfth isolation valve 435 are used to control the on / off of the pipeline at the outlet of the heat exchanger 432.
[0065] As Figure 1 shown, the hot water subsystem 4 in the embodiment further comprises a second expansion tank 44, which is arranged on the hot water return pipe shared by the in-containment hot water return pipe 41 and the out-of-containment hot water return pipe 42, so that the second expansion tank 44 can adjust the pressure fluctuation in the shared hot water return pipe, store and release heat, prevent the shared hot water return pipe from overheating, and prolong the service life of the equipment.
[0066] Specifically, the safety shell temperature control system has the following specific working process:
[0067] According to the temperature values measured by the plurality of first temperature sensors 16 arranged on the inner wall of the safety shell 5, the average value of the atmospheric temperature on the inner side of the safety shell 5 is obtained through weighted averaging, and the valve opening degree of the first regulating valve 13 is controlled by the first controller 15 according to the average value, so as to control the amount of hot water / cold water flowing into the in-containment temperature control subsystem 1.
[0068] When the ambient temperature is high, the tenth isolation valve 335 is opened, the eleventh isolation valve 434 and the twelfth isolation valve 435 are closed, the fifth isolation valve 124 is opened, the sixth isolation valve 125 is closed, the cold water from the cold water subsystem 3 flows into the first temperature adjusting member 141 through the in-containment main water inlet pipe 11 of the in-containment temperature control subsystem 1, the air in the safety shell 5 is cooled to lower temperature air after flowing through the first temperature adjusting member 141, the cooled air enters the first air pipe 142 and is sent to various places in the safety shell 5 through the first air pipe 142, and then the water after heat exchange flows back to the cold water subsystem 3 through the in-containment main water outlet pipe 12 and the in-containment cold water return pipe 31; when the ambient temperature is low, the tenth isolation valve 335 is closed, the eleventh isolation valve 434 and the twelfth isolation valve 435 are opened, the fifth isolation valve 124 is closed, the sixth isolation valve 125 is opened, the hot water from the hot water subsystem 4 flows into the first temperature adjusting member 141 through the in-containment main water inlet pipe 11 of the in-containment temperature control subsystem 1, the air in the safety shell 5 is heated to higher temperature air after flowing through the first temperature adjusting member 141, the heated air enters the first air pipe 142 and is sent to various places in the safety shell 5 through the first air pipe 142, and then the water after heat exchange flows back to the hot water subsystem 4 through the in-containment main water outlet pipe 12 and the in-containment hot water return pipe 41.
[0069] According to the temperature values measured by the plurality of second temperature sensors 26 arranged on the outer wall of the safety shell 5, the average value of the atmospheric temperature on the outer side of the safety shell 5 is obtained through weighted averaging, and the valve opening degree of the second regulating valve 23 is controlled by the second controller 25 according to the average value, so as to control the amount of hot water / cold water flowing into the second temperature adjusting member 241.
[0070] When the ambient temperature is high, the tenth isolation valve 335 is opened, the eleventh isolation valve 434 and the twelfth isolation valve 435 are closed, the seventh isolation valve 221 is opened, the eighth isolation valve 222 is closed, the cold water from the cold water subsystem 3 flows into the second temperature adjusting piece 241 through the shell outside main water inlet pipeline 21 of the shell outside temperature control subsystem 2, the air in the shell 5 outside annular corridor is cooled to lower temperature air after flowing through the second temperature adjusting piece 241, the cooled air enters the second air pipe 242 and is sent to each place in the shell 5 outside annular corridor through the second air pipe 242, and then the water after heat exchange flows back to the cold water subsystem 3 through the shell outside main water outlet pipeline 22 and the shell outside cold water return pipeline 32; when the ambient temperature is low, the tenth isolation valve 335 is closed, the eleventh isolation valve 434 and the twelfth isolation valve 435 are opened, the seventh isolation valve 221 is closed, the eighth isolation valve 222 is opened, the hot water from the hot water subsystem 4 flows into the second temperature adjusting piece 241 through the pipeline of the shell outside temperature control subsystem 2, the air in the shell 5 outside annular corridor is heated to higher temperature air after flowing through the second temperature adjusting piece 241, the heated air enters the second air pipe 242 and is sent to each place in the shell 5 outside annular corridor through the second air pipe 242, and then the water after heat exchange flows back to the hot water subsystem 4 through the shell outside main water outlet pipeline 22 and the shell outside hot water return pipeline 42.
[0071] The shell temperature control system provided by the utility model, which comprises a shell inside temperature control subsystem 1, a shell outside temperature control subsystem 2, a cold water subsystem 3 and a hot water subsystem 4, transports cold water / hot water to the shell inside temperature control subsystem 1 according to actual demand through the cold water subsystem 3 and the hot water subsystem 4, thereby adjusting the temperature in the shell 5 cavity, also transports cold water / hot water to the shell outside temperature control subsystem 2 according to actual demand through the cold water subsystem 3 and the hot water subsystem 4, thereby adjusting the temperature in the shell 5 outside annular corridor, and ensures that the temperature of the inside and outside atmospheres of the shell 5 is in a reasonable range. Through the above setting, the temperature in the shell 5 cavity and the shell 5 outside annular corridor can be ensured to be in a reasonable range when the ambient temperature is below 10 DEG C, thereby avoiding delay of construction period, and the shell inside temperature control subsystem 1 and the shell outside temperature control subsystem 2 share one cold water subsystem 3 and one hot water subsystem 4, so that the system structure is simplified and production cost is reduced.
[0072] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation to the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments cannot be exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A containment temperature control system, characterized by, The application relates to a temperature control system for a nuclear power plant, which comprises: an in-containment temperature control subsystem (1) comprising an in-containment main water inlet pipeline (11), an in-containment main water outlet pipeline (12), a first regulating valve (13) and an in-containment temperature control assembly (14), wherein the in-containment temperature control assembly (14) is located in the cavity of a safety shell (5), one end of the in-containment main water inlet pipeline (11) penetrates into the cavity of the safety shell (5) and is communicated with the water inlet of the in-containment temperature control assembly (14), one end of the in-containment main water outlet pipeline (12) is communicated with the water outlet of the in-containment temperature control assembly (14), and the first regulating valve (13) is arranged on the in-containment main water inlet pipeline (11) and can regulate the water inlet amount of the in-containment main water inlet pipeline (11); an out-of-containment temperature control subsystem (2) comprising an out-of-containment main water inlet pipeline (21), an out-of-containment main water outlet pipeline (22), a second regulating valve (23) and an out-of-containment temperature control assembly (24), wherein the out-of-containment temperature control assembly (24) is located outside the shell of the safety shell (5), one end of the out-of-containment main water inlet pipeline (21) is communicated with the water inlet of the out-of-containment temperature control assembly (24), one end of the out-of-containment main water outlet pipeline (22) is communicated with the water outlet of the out-of-containment temperature control assembly (24), and the second regulating valve (23) is arranged on the out-of-containment main water inlet pipeline (21) and can regulate the water inlet amount of the out-of-containment main water inlet pipeline (21); a cold water subsystem (3), wherein the water outlet of the cold water subsystem (3) is communicatable with the water inlet of the in-containment main water inlet pipeline (11) and can deliver cold water to the in-containment main water inlet pipeline (11), and the water outlet of the cold water subsystem (3) is also communicatable with the water inlet of the out-of-containment main water inlet pipeline (21) and can deliver cold water to the out-of-containment main water inlet pipeline (21); a hot water subsystem (4), wherein the water outlet of the hot water subsystem (4) is communicatable with the water inlet of the in-containment main water inlet pipeline (11) and can deliver hot water to the in-containment main water inlet pipeline (11), and the water outlet of the hot water subsystem (4) is also communicatable with the water inlet of the out-of-containment main water inlet pipeline (21) and can deliver hot water to the out-of-containment main water inlet pipeline (21).
2. The containment temperature control system of claim 1, wherein, The in-containment temperature control assembly (14) comprises a first temperature regulating member (141) and a first air pipe (142) which are communicated with each other, the water inlet of the first temperature regulating member (141) is communicated with one end of the in-containment main water inlet pipeline (11), the water outlet of the first temperature regulating member (141) is communicated with one end of the in-containment main water outlet pipeline (12), the water of the first temperature regulating member (141) can exchange heat with the air flowing through the first temperature regulating member (141), the air after heat exchange enters into the first air pipe (142), and the first air pipe (142) delivers hot air or cold air into the cavity of the safety shell (5).
3. The containment temperature control system of claim 2, wherein, The first temperature adjusting members (141) are multiple, and the multiple first temperature adjusting members (141) are arranged in parallel and are communicated with the first air pipe (142).
4. The containment temperature control system of claim 1, wherein, The shell-external temperature control assembly (24) comprises a second temperature adjusting member (241) and a second air pipe (242) which are communicated with each other, a water inlet of the second temperature adjusting member (241) is communicated with one end of the shell-external main water inlet pipe (21), a water outlet of the second temperature adjusting member (241) is communicated with one end of the shell-external main water outlet pipe (22), water passing through the second temperature adjusting member (241) can exchange heat with air passing through the second temperature adjusting member (241), and the air after heat exchange enters the second air pipe (242), and the second air pipe (242) delivers hot air or cold air to the shell-external annular corridor of the shell (5).
5. The containment temperature control system of claim 1, wherein, The cold water subsystem (3) comprises a shell-internal cold water return pipe (31), a shell-external cold water return pipe (32), a cold water delivery assembly (33) and a first expansion water tank (34), one end of the shell-internal cold water return pipe (31) is communicatable with a water outlet of the shell-internal main water outlet pipe (12), one end of the shell-external cold water return pipe (32) is communicatable with a water outlet of the shell-external main water outlet pipe (22), and the other end of the shell-internal cold water return pipe (31) and the other end of the shell-external cold water return pipe (32) are both communicated with one end of the cold water delivery assembly (33); The other end of the cold water delivery assembly (33) is communicatable with a water inlet of the shell-internal main water inlet pipe (11), and the other end of the cold water delivery assembly (33) is also communicatable with a water inlet of the shell-external main water inlet pipe (21); The first expansion water tank (34) is arranged on the shell-internal cold water return pipe (31).
6. The containment temperature control system of claim 5, wherein, The cold water delivery assembly (33) comprises a cold water delivery pump (331) and a refrigeration adjusting member (332), a water inlet of the cold water delivery pump (331) is communicated with a water outlet of the shell-internal cold water return pipe (31), and the water inlet of the cold water delivery pump (331) is also communicated with a water outlet of the shell-external cold water return pipe (32); A water outlet of the cold water delivery pump (331) is communicated with a water inlet of the refrigeration adjusting member (332), the water inlet of the refrigeration adjusting member (332) is communicatable with a water inlet of the shell-internal main water inlet pipe (11), and the water inlet of the refrigeration adjusting member (332) is also communicatable with a water inlet of the shell-external main water inlet pipe (21).
7. The containment temperature control system of claim 6, wherein, The cold water delivery assembly (33) is provided with multiple groups, the refrigeration adjusting members (332) in the multiple groups of the cold water delivery assembly (33) are at least partially different, and the refrigeration adjusting member (332) at least comprises an air-cooled unit and a water-cooled unit.
8. The containment temperature control system of claim 1, wherein, The hot water subsystem (4) comprises an in-containment hot water return pipe (41), an out-of-containment hot water return pipe (42), a hot water delivery assembly (43) and a second expansion tank (44), one end of the in-containment hot water return pipe (41) is in communication with the water outlet of the in-containment main water outlet pipe (12) in an openable and closable manner, one end of the out-of-containment hot water return pipe (42) is in communication with the water outlet of the out-of-containment main water outlet pipe (22) in an openable and closable manner, the other end of the in-containment hot water return pipe (41) and the other end of the out-of-containment hot water return pipe (42) are both in communication with one end of the hot water delivery assembly (43); The other end of the hot water delivery assembly (43) is in communication with the water inlet of the in-containment main water inlet pipe (11) in an openable and closable manner, and the other end of the hot water delivery assembly (43) is also in communication with the water inlet of the out-of-containment main water inlet pipe (21) in an openable and closable manner; The second expansion tank (44) is arranged on the in-containment hot water return pipe (41).
9. The containment temperature control system of claim 8, wherein, The hot water delivery assembly (43) comprises a hot water delivery pump (431) and a heat exchanger (432), the water inlet of the hot water delivery pump (431) is in communication with the water outlet of the in-containment hot water return pipe (41), and the water inlet of the hot water delivery pump (431) is also in communication with the water outlet of the out-of-containment hot water return pipe (42); The water outlet of the hot water delivery pump (431) is in communication with the water inlet of the heat exchanger (432), the water outlet of the heat exchanger (432) is in communication with the water inlet of the in-containment main water inlet pipe (11) in an openable and closable manner, and the water outlet of the heat exchanger (432) is also in communication with the water inlet of the out-of-containment main water inlet pipe (21) in an openable and closable manner.
10. The containment temperature control system of claim 1, wherein, The in-containment temperature control subsystem (1) further comprises a plurality of first temperature sensors (16), the plurality of first temperature sensors (16) are distributed on the inner wall of the containment (5) and are used for detecting the temperature at each position in the inner cavity of the containment (5); The out-of-containment temperature control subsystem (2) further comprises a plurality of second temperature sensors (26), the plurality of second temperature sensors (26) are distributed on the outer wall of the containment (5) and are used for detecting the temperature at each position in the ring corridor outside the containment (5).