Methods for monitoring the average temperature of containment air

Abstract

This invention relates to a method for monitoring the average air temperature inside a containment vessel, the method comprising: dividing the internal space of the containment vessel into N... i Calculate the volume of each region relative to the total internal volume of the containment, V. i ; N is measured by the instrument i The temperature T in each region i Calculate the corrected temperature T for each region. 修i , among which, T 修i =T i +△T i , △T i Preset temperature parameters for each region; determine the average temperature T of the air inside the containment. avg The above-mentioned solution provided in this application divides the entire containment space into different measurement areas, selects different temperature instruments in the corresponding spaces, and then performs logical operations on the temperature measurements of the instruments in different areas after correction processing to obtain the average temperature of the air inside the containment. The overall method can accurately reflect the average temperature inside the containment through area division and temperature correction.

Description

Technical Field

[0001] This invention relates to the field of nuclear power plant normal operation unit condition monitoring technology, and in particular to a method for monitoring the average temperature of containment air. Background Technology

[0002] The containment vessel of a nuclear power plant is a tall reinforced concrete structure that forms the outermost layer of the pressurized water reactor. It serves as the third line of defense against the leakage of fission products and maintains excellent sealing performance under the temperature and pressure conditions of a design basis accident. The containment is designed to withstand the mechanical and thermal stresses generated by a design basis accident, which primarily refers to breaches in the operation of dedicated safety facilities within the containment, such as a momentary double-ended rupture in the reactor coolant system piping or a momentary double-ended rupture in the secondary loop system piping. The design pressure of the containment is 0.52 MPa·abs, and the design temperature is 145°C.

[0003] In the event of a Loss-of-Primary Circuit (LOCA) accident and a Main Steam Pipe Rupture (MSLB) accident, the temperature and pressure of the air inside the containment will rise rapidly due to the release of a large amount of mass energy. Assuming an initial containment air temperature of 45°C, the maximum temperature inside the containment will reach approximately 135°C. The containment pressure transient is also sensitive to the initial air mass and temperature within the containment. The ultimate design basis accident for the maximum peak pressure inside the containment is the Main Steam Pipe Rupture accident, where the maximum containment pressure will approach 0.46 MPa·abs. The initial containment temperature in the Main Steam Pipe Rupture accident is also 45°C. Therefore, during normal operation of a nuclear power plant, the average temperature of the containment air needs to be maintained within the initial assumptions of the accident analysis to ensure that the containment temperature does not exceed its design temperature under accident conditions, thus preventing containment failure.

[0004] Existing pressurized water reactor nuclear power plants use temperature instruments on the containment dome to represent the average temperature of the entire containment based on the temperature of the free space at the top. However, because the containment contains multiple compartments, the temperature measured by a single instrument cannot represent the average air temperature of the entire containment. For example, the temperatures of the main pump compartment and the steam generator compartment generate significant heat and fluctuate considerably during normal operation due to the continuous operation of the equipment. Dome temperature measurements cannot reflect the temperature trends and changes in these compartments. When an increase in heat occurs in a corresponding compartment, resulting in an abnormal rise in compartment temperature, this cannot be promptly reflected in the change in the average air temperature of the containment. Summary of the Invention

[0005] Therefore, it is necessary to provide a method for monitoring the average temperature of containment air, addressing the problem that existing containment average temperature measurement equipment cannot accurately reflect the average temperature inside the containment.

[0006] This invention provides a method for monitoring the average temperature of containment air, the method comprising:

[0007] The internal space of the containment is divided into N. i One region;

[0008] Calculate the percentage (V) of each region's volume relative to the total internal volume of the containment. i ;

[0009] N is measured by the instrument. i The temperature T in each region i ;

[0010] Calculate the corrected temperature T for each region. 修i , among which, T 修i =T i +△T i , △T i Preset temperature parameters for each region;

[0011] Determine the average temperature T of the air inside the containment. avg ,in,

[0012] T avg =T 修1 ×V1+T 修2 ×V2+、、、+T 修i ×V i .

[0013] The aforementioned method for monitoring the average temperature of the containment air divides the entire containment space into different measurement zones, selects different temperature instruments in the corresponding zones, and then performs logical operations on the temperature measurements of the instruments in different zones after correction processing to obtain the average temperature of the air inside the containment. The overall method, through zone division and temperature correction, can accurately reflect the average temperature inside the containment, ensuring that the air temperature inside the containment is within the initial assumption range of the accident analysis and that the accident analysis is effective, thereby guaranteeing the operability of the containment.

[0014] In one embodiment, the internal space of the containment is divided into N i The containment is divided into six zones: Zone 1 includes the main pump compartment and sump pit area; Zone 2 includes the steam generator compartment area; Zone 3 includes the pressurizer compartment area; Zone 4 includes the annular space and through area; Zone 5 includes the primary loop auxiliary equipment area; and Zone 6 includes the equipment gates, main control console hall, and dome area.

[0015] In one embodiment, the measurement of N by the instrument i The temperature T in each regioni ,include:

[0016] In the first area, a measuring meter is placed at a preset height in each of the three compartments to measure the temperature T of the corresponding compartment. 隔1 T 隔2 And T 隔3 , where T1=(T 隔1 +T 隔2 +T 隔3 ) / 3;

[0017] In the second area, a measuring meter is placed at a preset height in each of the three compartments to measure the temperature T of the corresponding compartment. 隔4 T 隔5 And T 隔6 , where T2=(T 隔4 +T 隔5 +T 隔6 ) / 3;

[0018] In one of the compartments in the third zone, a measuring instrument is placed at a predetermined height to measure the temperature T of the corresponding compartment. 隔7 Where, T3 = T 隔7 ;

[0019] In the fourth region, a measuring instrument is placed at a preset height in each of the two annular spaces to measure the temperature T of the corresponding space. 隔8 and T 隔9 , where T4=(T 隔8 +T 隔9 ) / 2;

[0020] In the fifth region, a measuring instrument is placed at a preset height in two spaces to measure the temperature T in the corresponding spaces. 隔10 and T 隔11 , where T5=(T 隔10 +T 隔11 ) / 2.

[0021] In one embodiment, the measurement of N by the instrument i The temperature T in each region i ,include:

[0022] In the sixth area, a measuring meter is placed in each of the three spaces at a preset height. The measuring meters in the equipment gate space and the main control hall space are at the same height, while the measuring meter in the dome space is at a higher height than the measuring meter in the equipment gate space.

[0023] Measure the temperature T in the corresponding space 隔12 T 隔13 And T 隔14 , where T6=((T隔12 +T 隔13 ) / 2+T 隔14 ) / 2.

[0024] In one embodiment, the measurement of N by the instrument i The temperature T in each region i The method then includes:

[0025] Calculate the vertical span value for each of the six regions;

[0026] Determine if the vertical span of each region exceeds a preset value; if so, adjust T. i Make corrections; if T is less than T, do not make corrections. i .

[0027] In one embodiment, the calculation of the corrected temperature T for each region 修i This includes: calculating the corrected temperature T of the second region. 修2 And calculate the corrected temperature T in the fourth region. 修4 .

[0028] In one embodiment, the calculation of the corrected temperature T of the second region 修2 This includes: calculating the preset temperature parameter ΔT2 for the second region, where ΔT2 = T v2 -T 理论2 T v2 T is the theoretical average temperature of the second region. 理论2 The theoretical temperature value of the measurement point; the T 修2 =T2 + △T2.

[0029] In one embodiment, the T v2 The calculation method is as follows: Divide the second region vertically into five parts: H1, H2, H3, H4, and H5; measure the operating temperatures t1, t2, t3, t4, and t5 corresponding to the five parts in the second region, and measure the volumes v1, v2, v3, v4, and v5 corresponding to the five parts; the T... v2 =(t1×v1+t2×v2+t3×v3+t4×v4+t5×v5) / (v1+v2+v3+v4+v5).

[0030] In one embodiment, the calculation of the corrected temperature T of the fourth region is performed. 修4 This includes: calculating the preset temperature parameter ΔT4 for the fourth region, where ΔT4 = T v4 -T 理论4 T v4 T is the theoretical average temperature of the fourth region. 理论4 The theoretical temperature value of the measurement point; the T修4 =T4 + △T4.

[0031] In one embodiment, the determination of the average temperature T of the air inside the containment is described. avg The method then includes:

[0032] Determine the average temperature T avg If the value exceeds a preset value, an alarm will sound. Attached Figure Description

[0033] Figure 1 This is a schematic flowchart of a containment air average temperature monitoring method according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the internal structure of an existing containment vessel.

[0035] Figure 3 for Figure 2 A schematic diagram of the steam generator compartment area;

[0036] Figure 4 for Figure 2 A schematic diagram of the annular spatial region. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0043] like Figure 1 As shown, in one embodiment of the present invention, a method for monitoring the average temperature of containment air is provided, the method comprising:

[0044] Step 110: Divide the internal space of the containment vessel into N i One region;

[0045] Step 120: Calculate the proportion V of the volume of each region relative to the total internal volume of the containment. i ;

[0046] Step 130: Measure N using an instrument. i The temperature T in each region i ;

[0047] Step 140: Calculate the corrected temperature T for each region. 修i , among which, T 修i =T i +△T i , △T i Preset temperature parameters for each region;

[0048] Step 150: Determine the average temperature T of the air inside the containment. avg ,in,

[0049] T avg =T 修1 ×V1+T 修2 ×V2+、、、+T 修i ×V i .

[0050] By adopting the above technical solution, the entire containment space is divided into different measurement areas, different temperature instruments are selected in the corresponding spaces, and the temperature measurements of the instruments in different areas are corrected and then logically calculated to obtain the average temperature of the air inside the containment. The overall method, through area division and temperature correction, can accurately reflect the average temperature inside the containment, ensuring that the air temperature inside the containment is within the initial assumption range of the accident analysis and that the accident analysis is effective, thereby ensuring the operability of the containment.

[0051] In some embodiments, the internal space of the containment vessel is divided into N. i The containment is divided into six zones: Zone 1 includes the main pump compartment and sump pit area; Zone 2 includes the steam generator compartment area; Zone 3 includes the pressurizer compartment area; Zone 4 includes the annular space and through area; Zone 5 includes the primary loop auxiliary equipment area; and Zone 6 includes the equipment gates, main control console hall, and dome area.

[0052] Specifically, refer to Figure 2As shown, the containment space is divided according to its spatial arrangement. Since different equipment is arranged at different heights within the containment, the operation of this equipment generates heat, resulting in an uneven temperature distribution within the containment. When dividing the containment space, the arrangement and height of key equipment are considered. Key equipment mainly includes the reactor pit, main pump, steam generator, and pressurizer; these equipment compartments are designated as separate areas. This application divides the containment into six areas, from bottom to top: the main pump compartment and reactor pit area, the steam generator compartment, the pressurizer compartment area, the annular space and its through-area, the primary loop auxiliary equipment area, and the upper free space of the containment.

[0053] The division into six zones ensures that the main heat sources are taken into account, and also considers the characteristics of the temperature field distribution, with corresponding representative zones at different altitudes. The proportion of different spatial zones is calculated based on the volume of each zone and the total volume of the containment. As an example, Table 1 shows a typical containment layout for a pressurized water reactor nuclear power plant.

[0054] Table 1 Division of Containment Air Temperature Measurement Areas

[0055]

[0056] In some embodiments, the measurement of N by instruments in this application i The temperature T in each region i ,include:

[0057] In the first area, a measuring meter is placed at a preset height in each of the three compartments to measure the temperature T of the corresponding compartment. 隔1 T 隔2 And T 隔3 , where T1=(T 隔1 +T 隔2 +T 隔3 ) / 3; In the three compartments of the second area, place a measuring meter at a preset height in each compartment to measure the temperature T of the corresponding compartment. 隔4 T 隔5 And T 隔6 , where T2=(T 隔4 +T 隔5 +T 隔6 ) / 3; Place a measuring meter at a preset height in one of the compartments in the third area to measure the temperature T of the corresponding compartment. 隔7 Where, T3 = T 隔7 In the fourth region, place a measuring meter at a preset height in each of the two annular spaces to measure the temperature T of the corresponding space. 隔8 and T 隔9 , where T4=(T 隔8 +T 隔9) / 2; Place a measuring meter at a preset height in each of the two spaces in the fifth region to measure the temperature T of the corresponding space. 隔10 and T 隔11 , where T5=(T 隔10 +T 隔11 ) / 2, and in the three spaces of the sixth area, a measuring meter is placed at a preset height. The measuring meters in the equipment gate space and the main control hall space are at the same height, while the measuring meter in the dome space is at a higher height than the measuring meter in the equipment gate space; the temperature T of the corresponding space is measured. 隔12 T 隔13 And T 隔14 , where T6=((T 隔12 +T 隔13 ) / 2+T 隔14 ) / 2.

[0058] Specifically, this application selects representative instruments for each region based on the instrument layout of that region, choosing representative instruments from each region, for a total of 14 temperature measuring instruments from different regions. As an example, Table 2 shows a typical temperature instrument layout for the containment.

[0059] Table 2 Temperature measuring instruments in different regions

[0060]

[0061] The calculation of the sixth region T6 in this application ensures that the average temperature at the same altitude is used to replace the temperature at that altitude, and then averaged with the temperature tables at other altitudes in the space to ensure the representativeness of the average temperature.

[0062] In some embodiments, in this application, N is measured by an instrument. i The temperature T in each region i The method then includes:

[0063] Calculate the vertical span value for each of the six regions;

[0064] Determine if the vertical span of each region exceeds a preset value; if so, adjust T. i Make corrections; if T is less than T, do not make corrections. i .

[0065] Actual measurements show that this application only needs to correct the temperatures of the second and fourth regions; the temperatures of other regions do not require correction. Therefore, in this embodiment, the corrected temperature T for each region is calculated. 修i In practice, only the corrected temperature T of the second region needs to be calculated. 修2 And calculate the corrected temperature T in the fourth region. 修4Because the floor heights of the second and fourth zones are relatively large, the measured values ​​from the instrument layout are difficult to represent the average temperature of the zone. Therefore, this application requires temperature correction for the instrument measured values ​​in the steam generator compartment, the annular space, and their connecting areas.

[0066] The corrected temperature T for calculating the second region in this application 修2 This includes: calculating the preset temperature parameter ΔT2 for the second region, where ΔT2 = T v2 -T 理论2 T v2 T is the theoretical average temperature of the second region. 理论2 T represents the theoretical temperature value at the measurement point. 修2 =T2 + △T2.

[0067] Among them, in calculating T v2 When, refer to Figure 3 As shown, the second region is first divided vertically into five parts: H1, H2, H3, H4, and H5. The first part is between 1.2m and 6.5m; the second part is between 6.5m and 11.6m; the third part is between 11.6m and 17.5m; the fourth part is between 17.5m and 22.5m; and the fifth part is between 22.5m and 33.2m. The heat of these five parts is known, and the temperature t0 of the air outlet is also known. Using the formula t1 = q1 / C... p1 +t0 calculates t1, q1 is the heat of the first part, C p1 Let T be the specific heat capacity of air. Calculate the operating temperatures t2, t3, t4, and t5 for each of the five parts in the second region, and measure the corresponding volumes v1, v2, v3, v4, and v5 for each part; finally, calculate T. v2 =(t1×v1+t2×v2+t3×v3+t4×v4+t5×v5) / (v1+v2+v3+v4+v5).

[0068] When T is calculated v2 Then, based on the actual arrangement of the measuring instruments in the second area, the theoretical temperature value of the measuring points, T, was determined. 理论2 =t2, and then through △T2=T v2 -T 理论2 Calculate △T2, since T2=(T 隔4 +T 隔5 +T 隔6 ) / 3, at this point, use formula T again 修2 =T2 + △T2 to calculate T 修2 That's all.

[0069] Furthermore, the preset temperature parameter ΔT4 for the fourth region is calculated, where ΔT4 = T v4-T 理论4 T v4 The theoretical average temperature of the fourth region is referenced. Figure 4 As shown, this application divides the fourth region into four parts: the first part is between -2.6m and 1.2m; the second part is between 1.2m and 6.5m; the third part is between 6.5m and 11.6m; and the fourth part is between 11.6m and 17.5m. The heat of these four parts is known, and the temperature t0 of the air outlet is known. Using the formula t1 = q1 / C... p1 +t0 calculates t1, q1 is the heat of the first part, C p1 Let T be the specific heat capacity of air. Calculate the operating temperatures t2, t3, and t4 for each of the four parts in the fourth region, and measure the corresponding volumes v1, v2, v3, and v4 for each part; finally, calculate T. v4 =(t1×v1+t2×v2+t3×v3+t4×v4) / (v1+v2+v3+v4).

[0070] When T is calculated v4 Then, based on the actual arrangement of the instruments at the measuring points in the fourth area, the theoretical temperature value (T) of the measuring points was determined. 理论4 =t1, and then through △T4=T v4 -T 理论4 Calculate △T4, since T4 = (T 隔8 +T 隔9 ) / 2, at this point, use formula T again 修4 =T4 + △T4 to calculate T 修4 That's all.

[0071] Since this application does not require correction for the measured temperatures T1, T3, T5, and T6 of the first, third, fifth, and sixth regions, after calculating the corrected temperature T of the second region... 修2 and the corrected temperature T of the fourth region 修4 Then, T1 and T 修2 T3, T 修4 Substitute T5 and T6, and V1, V2, V3, V4, V5 and V6 into T avg =T 修1 ×V1+T 修2 ×V2+、、、+T 修i ×V i The average temperature of the containment vessel can then be calculated: T avg =T1×V1+T 修2 ×V2+T3×V3+T 修4 ×V4+T5×V5+T6×V6.

[0072] In some embodiments, this application determines the average temperature T of the air inside the containment. avg The method then further includes: determining the average temperature T. avg If the value exceeds a preset value, an alarm will sound.

[0073] Specifically, the average temperature of the containment vessel in this application is displayed in the main control room. In addition to providing a numerical display of the water level in the pressure vessel, the display also has an alarm signal. When the average temperature is higher than 45°C, an alarm is generated to remind the operator in the main control room.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for monitoring the average temperature of air within a containment facility, characterized in that, The method includes: The internal space of the containment is divided into N. i One region; Calculate the percentage (V) of each region's volume relative to the total internal volume of the containment. i ; N is measured by the instrument. i The temperature T in each region i ; Calculate the corrected temperature T for each region. 修i , among which, T 修i =T i +△T i , △T i Preset temperature parameters for each region; Determine the average temperature T of the air inside the containment. avg ,in, T avg =T 修1 ×V1+T 修2 ×V2+、、、+T 修i ×Vi; The division of the interior space of the containment into Ni regions includes: The interior space of the containment is divided into six zones. The first zone includes the main pump compartment and the stack pit area; the second zone includes the steam generator compartment area; the third zone includes the pressurizer compartment area; the fourth zone includes the annular space and the through area; the fifth zone includes the primary loop auxiliary equipment area; and the sixth zone includes the equipment gates, the main control console hall, and the dome area. The measurement of N by the instrument i The temperature T in each region i The method then includes: Calculate the vertical span value for each of the six regions; Determine if the vertical span of each region exceeds a preset value; if so, adjust T. i Make corrections; if T is less than T, do not make corrections. i .

2. The method for monitoring the average temperature of containment air according to claim 1, characterized in that, The measurement of N by the instrument i The temperature T in each region i ,include: In the first area, a measuring meter is placed at a preset height in each of the three compartments to measure the temperature T of the corresponding compartment. 隔1 T 隔2 And T 隔3 , where T1=(T 隔1 +T 隔2 +T 隔3 ) / 3; In the second area, a measuring meter is placed at a preset height in each of the three compartments to measure the temperature T of the corresponding compartment. 隔4 T 隔5 And T 隔6 , where T2=(T 隔4 +T 隔5 +T 隔6 ) / 3; In one of the compartments in the third zone, a measuring instrument is placed at a predetermined height to measure the temperature T of the corresponding compartment. 隔7 Where, T3 = T 隔7 ; In the fourth region, a measuring instrument is placed at a preset height in each of the two annular spaces to measure the temperature T of the corresponding space. 隔8 and T 隔9 , where T4=(T 隔8 +T 隔9 ) / 2; In the fifth region, a measuring instrument is placed at a preset height in two spaces to measure the temperature T in the corresponding spaces. 隔10 and T 隔11 , where T5=(T 隔10 +T 隔11 ) / 2.

3. The method for monitoring the average temperature of containment air according to claim 1, characterized in that, The measurement of N by the instrument i The temperature T in each region i ,include: In the sixth area, a measuring meter is placed in each of the three spaces at a preset height. The measuring meters in the equipment gate space and the main control hall space are at the same height, while the measuring meter in the dome space is at a higher height than the measuring meter in the equipment gate space. Measure the temperature T in the corresponding space 隔12 T 隔13 And T 隔14 , where T6=((T 隔12 +T 隔13 ) / 2+T interval 14 ) / 2.

4. The method for monitoring the average temperature of containment air according to claim 1, characterized in that, The corrected temperature T for each region is calculated. 修i ,include: Calculate the corrected temperature T in the second region 修2 And calculate the corrected temperature T in the fourth region. 修4 .

5. The method for monitoring the average air temperature within the containment chamber according to claim 4, characterized in that, The corrected temperature T of the second region is calculated. 修2 ,include: Calculate the preset temperature parameter ΔT2 for the second region, where ΔT2 = T v2 -T 理论2 T v2 T is the theoretical average temperature of the second region. 理论2 This is the theoretical temperature value at the measurement point; The T 修2 =T2 + △T2.

6. The method for monitoring the average air temperature within the containment chamber according to claim 5, characterized in that, The T v2 The calculation method is as follows: The second region is divided vertically into five parts: H1, H2, H3, H4, and H5. The operating temperatures t1, t2, t3, t4, and t5 of the five parts in the second region were measured respectively, as were the volumes v1, v2, v3, v4, and v5 of the five parts respectively. The T v2 =(t1×v1+t2×v2+t3×v3+t4×v4+t5×v5) / (v1+v2+v3+v4+v5).

7. The method for monitoring the average temperature of containment air according to claim 4, characterized in that, The corrected temperature T of the fourth region is calculated. 修4 ,include: Calculate the preset temperature parameter ΔT4 for the fourth region, where ΔT4 = T v4 -T 理论4 T v4 T is the theoretical average temperature of the fourth region. 理论4 This is the theoretical temperature value at the measurement point; The T 修4 =T4 + △T4.

8. The method for monitoring the average temperature of containment air according to claim 1, characterized in that, The determination of the average temperature T of the air inside the containment. avg The method then includes: Determine the average temperature T avg If the value exceeds a preset value, an alarm will sound.

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