CN213958601U - Independent temperature and humidity adjusting device for containment of nuclear power station - Google Patents
Independent temperature and humidity adjusting device for containment of nuclear power station Download PDFInfo
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- CN213958601U CN213958601U CN202022413510.5U CN202022413510U CN213958601U CN 213958601 U CN213958601 U CN 213958601U CN 202022413510 U CN202022413510 U CN 202022413510U CN 213958601 U CN213958601 U CN 213958601U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a temperature and humidity independent adjusting device for a containment of a nuclear power station, which comprises an air inlet system, a circulating ventilation system and an air exhaust system; the air inlet system provides dry compressed air for the nuclear island plant, the circulating ventilation system enables air in the nuclear island plant to flow circularly, the air exhaust system exhausts damp and hot air in the nuclear island plant to the outside of the nuclear island plant, and the temperature and humidity of the air in the containment vessel are adjusted through air replacement. Compared with the prior art, the utility model discloses nuclear power station containment humiture independent regulation device adjusts the humiture of gaseous in the containment through gaseous replacement, has solved among the traditional technical scheme problem high, many to the available quantity requirement of system to the availability dependency of system, need not occupy the system debugging window during dehumidification cooling moreover. And simultaneously, the utility model discloses do not produce the comdenstion water during the dehumidification, need not stop to transport nuclear island key equipment and shelter from, can not influence the debugging critical path.
Description
Technical Field
The utility model belongs to nuclear power station containment temperature and humidity control field, more specifically says, the utility model relates to a nuclear power station containment temperature and humidity independent regulating apparatus.
Background
The containment vessel pressurization test is a test for analyzing and determining the total leakage rate and the leakage amount of the containment vessel under the design pressure by measuring the change trend of the gas parameters in the containment vessel along with time by means of a leakage rate acquisition and measurement network. If the air humidity is high under normal pressure, the air is likely to have a humidity saturation phenomenon in the boosting process, and then water drops are separated out, and if the water drops are attached to the temperature sensor and the humidity sensor, the temperature sensor and the humidity sensor cannot accurately calculate air parameters, so that the test result has large deviation. Therefore, the condition that the air humidity in the nuclear island factory building meets the test requirement is one of the prerequisites for starting the containment vessel pressurization test.
A nuclear power chilled water system (DEG) designed in a containment vessel of the nuclear power plant can indirectly dehumidify a plant of a nuclear island, but the DEG is started on the premise that an equipment cooling water system (RRI) and an important service water System (SEC) are required to be available. In the prior art, the specific principle of dehumidifying a nuclear island plant by DEG/RRI/SEC is as follows: the DEG system cools the circulating air of the nuclear island plant, the RRI system provides cooling water for a heat exchanger of the DEG system, and the SEC system transfers the heat load generated by the RRI system into seawater.
However, dehumidification of nuclear island buildings by DEG/RRI/SEC systems presents at least the following problems:
(1) according to the handover logic of the nuclear power station system, the RRI system is generally handed over later, so that the available time of the RRI system is later, and the DEG system cannot be independently used;
(2) when the DEG/RRI/SEC is used for dehumidifying the nuclear island plant, the DEG system reduces the temperature of air in the nuclear island plant, the wet air is condensed into water after meeting low temperature and then remains in the nuclear island plant, if the DEG system stops running and the temperature of the nuclear island plant rises, part of the condensed water becomes water vapor again, and the humidity in the containment vessel rises again;
(3) during the dehumidification period of the DEG system, the wet air in the nuclear island plant is condensed into water after meeting low temperature, so that key equipment needs to be shut down and shielded during dehumidification, part of the system cannot be normally debugged, the key path in the debugging stage is influenced, and the labor cost is increased.
In addition, during the thermal test of the nuclear power station, the problem that testers cannot enter the nuclear island due to the fact that high-concentration formaldehyde gas is generated due to high temperature is also solved.
In view of the above, it is necessary to provide an independent temperature and humidity adjusting device for a containment of a nuclear power plant, which can solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the temperature and humidity independent adjusting device for the containment vessel of the nuclear power plant is independent of a DEG system and does not need to shut down key equipment of a nuclear island.
In order to realize the purpose of the utility model, the utility model provides an independent temperature and humidity adjusting device for a nuclear power station containment, which comprises an air inlet system, a circulating ventilation system and an air exhaust system; the air inlet system provides dry compressed air for the nuclear island plant, the circulating ventilation system enables air in the nuclear island plant to flow circularly, the air exhaust system exhausts damp and hot air in the nuclear island plant to the outside of the nuclear island plant, and the temperature and humidity of the air in the containment vessel are adjusted through air replacement.
As the utility model discloses nuclear power station containment humiture independent regulating apparatus's an improvement, air intake system includes a plurality of parallelly connected branch circuits that admit air and the gas collecting tank of being connected with all branch circuits that admit air, and each branch circuit that admits air all is used for producing dry compressed gas, and the gas collecting tank collects all dry compressed gas that admit air the production of branch circuit and carries out temporary storage and pressure boost, then sends into dry compressed gas in the nuclear island factory building through the machinery running through of nuclear island factory building.
As an improvement of the temperature and humidity independent adjusting device for the containment of the nuclear power station, each air inlet branch comprises an air compressor, an air storage tank, a drying device and a filtering device which are sequentially connected in series; the air compressor is used for providing compressed air, and the air storage tank is connected with an outlet of the air compressor and is used for adjusting and stabilizing the pressure of the compressed air; the drying device is used for removing moisture in the compressed gas, and the filtering device is used for removing oil and solid impurities in the compressed gas.
As the utility model discloses nuclear power station containment humiture independent regulating apparatus's an improvement, drying device includes frozen compressed air desiccator and no heat regeneration formula desicator, and filter equipment includes activated carbon filter and high-efficient deoiling filter, frozen compressed air desiccator, activated carbon filter, no heat regeneration formula desicator and high-efficient deoiling filter connect gradually in gas holder low reaches according to precedence order.
As an improvement of the temperature and humidity independent adjusting device for the containment of the nuclear power station, the circulating ventilation system comprises a main ventilation system and a dome ventilation system, and the main ventilation system and the dome ventilation system respectively comprise an air inlet pipe, a plurality of cooling branches and a plurality of cooling coil pipes which are connected in parallel; and the gas in the containment enters the main ventilation system or the dome ventilation system through the air inlet pipe, is cooled through the cooling branch, is collected to the cooling coil and is sent to each ventilation area of the nuclear island plant through the cooling coil, and the gas in each area of the nuclear island plant is forced to fully flow.
As the utility model discloses nuclear power station containment independent temperature and humidity adjusting device's an improvement, the air-supply line is the stainless steel tuber pipe, and a plurality of parallelly connected cooling branch roads all are connected with the air-supply line, and each cooling branch road includes primary filter, heat exchanger, fan and valve, and cooling coil includes the collection tuber pipe and goes to each regional wind gap of nuclear island factory building, and the export connection of collection tuber pipe and all cooling branch roads for collect the cold air, the cold air that goes to each regional wind gap of nuclear island factory building then will collect in the tuber pipe is delivered to each ventilation zone of nuclear island factory building.
As an improvement of the temperature and humidity independent adjusting device for the containment of the nuclear power station, the orifice of the air inlet pipe of the main ventilation system is positioned at the 35m elevation, hot air is sucked from the 35m elevation, and the air collecting pipe is positioned at the 0m elevation; the mouth of the air inlet pipe of the dome ventilation system is positioned near the dome.
As an improvement of the temperature and humidity independent adjusting device for the containment of the nuclear power station, the air exhaust system is a straight-flow ventilation system and comprises a dome ring pipe, a straight pipe, an air outlet pipe and a fan connected with the air outlet pipe, wherein the dome ring pipe, the straight pipe, the air outlet pipe and the fan are sequentially connected; the dome ring pipe is coiled above the interior of the dome and is provided with a plurality of openings, the top of the straight pipe is connected with the dome ring pipe and extends downwards, and the openings are arranged at different heights; the air outlet pipe is connected with the bottom of the straight pipe and penetrates out of the containment from the mechanical penetrating piece of the containment.
As the utility model discloses nuclear power station containment independent temperature and humidity adjusting device's an improvement, the opening of straight tube is located 15m, 20m, 35m high department respectively, and the containment is worn out from 5 m's of containment mechanical penetration piece to the outlet duct.
As the utility model discloses nuclear power station containment humiture independent regulating apparatus's an improvement, nuclear power station containment humiture independent regulating apparatus is still including installing two blocks of absolute pressure sensor in the containment, and absolute pressure sensor monitors the absolute pressure in the containment at any time and gives the host computer with absolute pressure signal transmission, and the host computer calculates the absolute pressure in the containment and changes and take corresponding measure.
Compared with the prior art, the utility model discloses nuclear power station containment humiture independent regulation device adjusts the humiture of gaseous in the containment through gaseous replacement, has solved among the traditional technical scheme problem high, many to the available quantity requirement of system to the availability dependency of system, need not occupy the system debugging window during dehumidification cooling moreover. And simultaneously, the utility model discloses do not produce the comdenstion water during the dehumidification, need not stop to transport nuclear island key equipment and shelter from, can not influence the debugging critical path.
Drawings
The independent temperature and humidity adjusting device for the containment vessel of the nuclear power plant and the beneficial effects thereof are described in detail below with reference to the accompanying drawings and the specific implementation manner.
Fig. 1 is the utility model discloses nuclear power station containment independent temperature and humidity adjusting device's schematic structure.
Fig. 2 is the utility model discloses nuclear power station containment independent temperature and humidity adjusting device's three-dimensional schematic diagram, wherein, circulating ventilation system is not shown.
Fig. 3 is the utility model discloses nuclear power station containment independent temperature and humidity adjusting device's main ventilation system's schematic structure.
Detailed Description
In order to make the purpose, technical scheme and beneficial technical effect of the utility model clearer, the following combines the drawings and the detailed description to go forward the further detailed description of the utility model. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and not limitation.
Referring to fig. 1 and 2, the independent temperature and humidity adjusting device for the containment of the nuclear power plant of the present invention includes an air intake system, a circulating ventilation system, and an air pumping system. Wherein, air intake system provides dry compressed gas for in the nuclear island factory building, and circulating ventilation system makes the gaseous circulation flow in the nuclear island factory building, and air exhaust system takes out the humid and hot gas in the nuclear island factory building to the nuclear island factory building outside. The utility model discloses nuclear power station containment humiture independent regulating apparatus adjusts the humiture of gaseous in the containment through gaseous replacement.
The air inlet system comprises a plurality of air inlet branches connected in parallel and air collecting tanks 17 connected with all the air inlet branches, each air inlet branch is used for producing dry compressed air, the air collecting tanks 17 collect the dry compressed air produced by all the air inlet branches for temporary storage and pressurization, and then the dry compressed air is sent into the nuclear island plant through mechanical penetrating pieces (standby penetrating pieces arranged in the existing containment) of the nuclear island plant, so that the pressure of the air entering the containment meets the requirement, and the measured value of the outlet air (namely the outlet air of the air inlet system) of the air collecting tanks 17 is shown in table 1. When the dry compressed gas enters the nuclear island plant, the dry compressed gas is mainly sent to the minus first floor at the position of elevation minus 3.4 m. The gas inlet branch and the gas collecting tank 17, and the gas collecting tank 17 and the nuclear island plant are connected through metal hoses, such as metal hoses of DN125 and PN1.6MPa, and the metal hoses are connected through flanges.
Table 1: quality table for certain measured time of outlet gas of air inlet system
| Parameter(s) | Measured value |
| Outlet pressure | 8bar.g |
| Outlet temperature | 24℃ |
| Outlet flow rate | ＞6000m3/h |
| Dew point (10bar. g) | ﹣13.4℃ |
Each air inlet branch comprises an air compressor 11, an air storage tank 12, a drying device and a filtering device which are sequentially connected in series. The air compressor 11 is used to provide compressed air. The gas storage tank 12 is connected to an outlet of the air compressor 11, and is used for regulating and stabilizing the pressure of the compressed gas. In order to ensure that the outlet quality of the gas inlet system meets the requirement, and simultaneously, the outlet gas of the gas inlet system has to ensure that the oil content meets the requirement of less than 5mg/m due to the requirement of a nuclear island factory building3Therefore, it isThe air inlet system is provided with an air compressor, and is also provided with a drying device and a filtering device for adjusting the quality of outlet gas, wherein the drying device is used for removing moisture in the compressed gas, and the filtering device is used for removing oil and solid impurities in the compressed gas.
In a specific embodiment, the drying device includes a refrigeration type compressed air dryer 13 and a heatless regeneration type dryer 15, the filtering device includes an activated carbon filter 14 and a high efficiency oil removing filter 16, and the refrigeration type compressed air dryer 13, the activated carbon filter 14, the heatless regeneration type dryer 15 and the high efficiency oil removing filter 16 are sequentially connected to the downstream of the air storage tank 12. The refrigeration type compressed air dryer 13 is used for removing moisture in compressed air and adjusting the temperature of the compressed air, and ensures that the temperature of the air entering the containment meets the requirement while ensuring that the humidity of the air meets the requirement; the activated carbon filter 14 and the high efficiency oil removal filter 16 are used to remove oil and solid impurities from the compressed gas, ensure that the oil content of the gas entering the containment meets the requirements, and prevent fire during the test. The activated carbon filter 14 is an S-grade filter, and the high-efficiency oil removal filter 16 is a P-grade filter.
The free volume of a nuclear island plant is about 50000m3In consideration of sufficient allowance, the air intake system is provided with 5 air intake branches, namely 5 air compressors, wherein the air output of 1 air compressor is 1200m3The air output of the air compressor is 1800m3The air output of the other 3 air compressors is 2292m3H is used as the reference value. During normal use, only 2 gas outlets are put into operation at 2292m3The gas output of the/h and 1 station is 1800m3And the rest 2 air compressors are used as standby for shutdown and overhaul of the operation air compressors. It should be noted that although only three intake branches are shown in fig. 2, this is only a schematic diagram, and in different embodiments, the number of intake branches may be adjusted, for example, 5 intake branches are provided in the above embodiment.
The circulating ventilation system comprises a main ventilation system and a dome ventilation system, and the structures of the two ventilation systems are basically the same except for the difference of air inlet heights. The following description will be given of the structure of the main ventilation system by way of example only.
Referring to fig. 3, the main ventilation system includes an air inlet duct 31, a plurality of parallel cooling branches 32, and a cooling coil 33. The gas in the containment vessel enters the main ventilation system through the air inlet pipe 31, is cooled by the cooling branch 32, is collected to the cooling coil 33 and is sent to each ventilation area of the nuclear island factory building through the cooling coil 33, and the gas in each area of the nuclear island factory building is forced to fully flow. Wherein, the air inlet pipe 31 is a stainless steel air pipe, the pipe orifice is mainly positioned at the elevation of 35m, and hot air is sucked from the elevation of 35 m. A plurality of parallel cooling branches 32 are connected to the air inlet duct 31, and each cooling branch 32 includes a primary filter 320, a heat exchanger 321, a fan 322, and a valve 324. The cooling coil 33 comprises an air collecting pipe 330 and air ports 332 to all areas of the nuclear island plant, the air collecting pipe 330 is connected with outlets of all cooling branches 32 and used for collecting cold air, and the air ports 332 to all areas of the nuclear island plant send the cold air in the air collecting pipe 330 to all ventilation areas of the nuclear island plant. The air collecting duct 330 is located at the 0m level. In the illustrated embodiment, the main ventilation system includes three cooling branches 32, each cooling branch 32 having a capacity of 50%.
The dome ventilation system also comprises an air inlet pipe, a plurality of cooling branches and cooling coils which are connected in parallel, the structure of the dome ventilation system is basically the same as that of the main ventilation system, and only the nozzle of the air inlet pipe is positioned near the dome, so that the detailed description is omitted.
Referring to fig. 1 and 2, the air-extracting system is a straight-flow type ventilation system, and includes a dome-shaped annular pipe 51, a straight pipe 52, an air outlet pipe 53 and a fan 54 connected to the air outlet pipe 53. Under normal conditions, the damp and hot gas in the nuclear island plant is gathered in the upper space of the dome, so that the dome ring pipe 51 is coiled above the inner part of the dome and is provided with a plurality of openings. The top of the straight pipe 52 is connected with the dome ring pipe 51 and extends downwards, and a plurality of openings are arranged at the height of 15m, 20m and 35 m. The outlet pipe 53 is connected to the bottom of the straight pipe 52 and passes out of the containment vessel from a mechanical penetration (a spare penetration provided in the existing containment vessel) of the containment vessel 5 m. After the fan 54 is started, damp and hot gas in the areas of 15m, 20m and 35m passed by the dome and straight pipe sections is sucked in through the openings of the dome ring pipe 51 and the straight pipe 52 and is exhausted out of the containment vessel through the air outlet pipe 53, so that negative pressure is formed in the areas of 15m, 20m and 35m passed by the dome and straight pipe sections, and dry compressed gas transmitted by the air inlet system is filled in the areas.
The utility model discloses nuclear power station containment humiture independent regulation device is still including installing two blocks of absolute pressure sensor 70 in the containment, absolute pressure sensor 70 can set up on circulating ventilation system, it monitors absolute pressure in the containment at any time and gives the host computer with absolute pressure signal transmission, the host computer calculates absolute pressure change in the containment and takes corresponding measure, effectively avoid exerting oneself because of air intake system or air exhaust system leads to exerting oneself nuclear island factory building internal pressure speed rate that causes inadequately to change too fast, prevent to influence containment structural strength and too high malleation or negative pressure and cause the damage to the equipment in the nuclear island factory building. Specifically, the method comprises the following steps:
when the output of the air extraction system is insufficient, the pressure in the nuclear island plant is higher than 0.1bar.g or the boosting rate is higher than 0.12bar/h, at the moment, a high-pressure alarm of the nuclear island plant is sent out, a tester is reminded to close one air compressor, check the working condition of a fan of the air extraction system or open the opening of a valve of an EBA penetration piece to adjust the air discharge amount in the nuclear island plant, and the equipment in the nuclear island plant is prevented from being damaged by the occurrence of overhigh positive pressure or overhigh boosting rate;
when the air outlet of the air inlet system is insufficient, namely the air inlet amount is smaller than the air outlet amount, when the nuclear island plant is lower than-0.1 bar.g or the pressure reduction rate is higher than 0.1bar/h, a low-pressure alarm is sent out to remind a tester to close a fan, the working condition of an air compressor of the air inlet system is checked or the opening of an EBA valve is adjusted to adjust the air inlet amount of the nuclear island plant, and the damage to equipment in the nuclear island plant caused by the occurrence of overhigh negative pressure or overhigh pressure reduction rate is prevented.
Can know through the above description, the utility model discloses independent adjusting device of nuclear power station containment humiture has following advantage at least:
(1) the utility model utilizes the air inlet system, the circulating ventilation system and the air exhaust system to realize the dehumidification and cooling of the nuclear island without the use of the DEG system;
(2) the utility model does not produce condensed water in the dehumidification process, does not need to stop and shield the key equipment of the nuclear island, and does not influence the debugging key path;
(3) the utility model can realize dehumidification without special equipment special window requirement without depending on SEC/RRI system operation;
(4) the utility model discloses utilize the air exhaust system to gather the humid hot gas above the dome to the nuclear island outside, do not produce the comdenstion water simultaneously, improved dehumidification efficiency greatly, according to actual calculating and verifying, about 8h are put into operation and can be satisfied containment and suppress test humidity requirement;
(5) the utility model discloses utilize two pressure sensor and EBA through-member valve to ensure that the pressure in the nuclear island factory building can not take place to change by a wide margin during the dehumidification, avoid influencing field device safety and constructor safety.
(6) The utility model discloses also can solve during the nuclear power station heat is tried, produce the problem that high concentration formaldehyde gas leads to the unable entering of tester because of high temperature in the nuclear island.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. The utility model provides a nuclear power station containment humiture independent regulating apparatus which characterized in that: comprises an air inlet system, a circulating ventilation system and an air exhaust system; the air inlet system provides dry compressed air for the nuclear island plant, the circulating ventilation system enables air in the nuclear island plant to flow circularly, the air exhaust system exhausts damp and hot air in the nuclear island plant to the outside of the nuclear island plant, and the temperature and humidity of the air in the containment vessel are adjusted through air replacement.
2. The temperature and humidity independent adjusting device for the containment vessel of the nuclear power plant as claimed in claim 1, wherein: the gas inlet system comprises a plurality of gas inlet branches connected in parallel and gas collecting tanks connected with all the gas inlet branches, each gas inlet branch is used for producing dry compressed gas, the gas collecting tanks collect the dry compressed gas produced by all the gas inlet branches for temporary storage and pressurization, and then the dry compressed gas is sent into the nuclear island plant through mechanical penetrating pieces of the nuclear island plant.
3. The temperature and humidity independent adjusting device for the containment vessel of the nuclear power plant as claimed in claim 2, wherein: each air inlet branch comprises an air compressor, an air storage tank, a drying device and a filtering device which are sequentially connected in series; the air compressor is used for providing compressed air, and the air storage tank is connected with an outlet of the air compressor and is used for adjusting and stabilizing the pressure of the compressed air; the drying device is used for removing moisture in the compressed gas, and the filtering device is used for removing oil and solid impurities in the compressed gas.
4. The temperature and humidity independent adjusting device for the nuclear power station containment vessel as claimed in claim 3, wherein: the drying device comprises a freezing type compressed air dryer and a heatless regeneration type dryer, the filtering device comprises an activated carbon filter and a high-efficiency oil removing filter, and the freezing type compressed air dryer, the activated carbon filter, the heatless regeneration type dryer and the high-efficiency oil removing filter are sequentially connected to the downstream of the air storage tank in sequence.
5. The temperature and humidity independent adjusting device for the containment vessel of the nuclear power plant as claimed in claim 1, wherein: the circulating ventilation system comprises a main ventilation system and a dome ventilation system, and the main ventilation system and the dome ventilation system respectively comprise an air inlet pipe, a plurality of cooling branches and a plurality of cooling coils which are connected in parallel; and the gas in the containment enters the main ventilation system or the dome ventilation system through the air inlet pipe, is cooled through the cooling branch, is collected to the cooling coil and is sent to each ventilation area of the nuclear island plant through the cooling coil, and the gas in each area of the nuclear island plant is forced to fully flow.
6. The temperature and humidity independent adjusting device for the nuclear power station containment vessel as claimed in claim 5, wherein: the air-supply line is the stainless steel tuber pipe, and a plurality of parallelly connected cooling branch roads all are connected with the air-supply line, and each cooling branch road includes primary filter, heat exchanger, fan and valve, and cooling coil includes the collection tuber pipe and goes to each regional wind gap of nuclear island factory building, and the exit linkage of collection tuber pipe and all cooling branch roads for collect cold air, the wind gap that goes to each region of nuclear island factory building then sends the cold air in the collection tuber pipe to each region of ventilating of nuclear island factory building.
7. The temperature and humidity independent adjusting device for the containment vessel of the nuclear power plant as claimed in claim 6, wherein: the pipe orifice of the air inlet pipe of the main ventilation system is positioned at the 35m elevation, hot air is sucked from the 35m elevation, and the air collecting pipe is positioned at the 0m elevation; the mouth of the air inlet pipe of the dome ventilation system is positioned near the dome.
8. The temperature and humidity independent adjusting device for the containment vessel of the nuclear power plant as claimed in claim 1, wherein: the air extraction system is a direct-flow ventilation system and comprises a dome ring pipe, a straight pipe, an air outlet pipe and a fan connected with the air outlet pipe, wherein the dome ring pipe, the straight pipe and the air outlet pipe are sequentially connected; the dome ring pipe is coiled above the interior of the dome and is provided with a plurality of openings, the top of the straight pipe is connected with the dome ring pipe and extends downwards, and the openings are arranged at different heights; the air outlet pipe is connected with the bottom of the straight pipe and penetrates out of the containment from the mechanical penetrating piece of the containment.
9. The temperature and humidity independent adjusting device for the containment vessel of the nuclear power plant as claimed in claim 8, wherein: the openings of the straight pipes are respectively positioned at the height positions of 15m, 20m and 35m, and the air outlet pipe penetrates out of the containment vessel from the mechanical penetrating piece of the containment vessel 5 m.
10. The temperature and humidity independent adjusting device for the containment vessel of the nuclear power plant as claimed in any one of claims 1 to 9, wherein: the independent temperature and humidity adjusting device for the containment of the nuclear power station further comprises two absolute pressure sensors arranged in the containment, the absolute pressure sensors monitor absolute pressure in the containment at any time and transmit absolute pressure signals to an upper computer, and the upper computer calculates absolute pressure change in the containment and takes corresponding measures.
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