CN108519315B - Simulation chamber and air filtration efficiency test method using same - Google Patents
Simulation chamber and air filtration efficiency test method using same Download PDFInfo
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- CN108519315B CN108519315B CN201810266201.4A CN201810266201A CN108519315B CN 108519315 B CN108519315 B CN 108519315B CN 201810266201 A CN201810266201 A CN 201810266201A CN 108519315 B CN108519315 B CN 108519315B
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- 238000004088 simulation Methods 0.000 title claims abstract description 129
- 238000001914 filtration Methods 0.000 title claims abstract description 87
- 238000010998 test method Methods 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 239000000443 aerosol Substances 0.000 claims description 54
- 238000005192 partition Methods 0.000 claims description 29
- 238000012360 testing method Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 230000002285 radioactive effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000638 solvent extraction Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- G01N2015/084—Testing filters
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Abstract
The invention discloses a simulation room and an air filtration efficiency test method using the same, relates to the technical field of air filtration efficiency detection, and aims to solve the problems that the existing air filtration equipment has inferior-quality products, and radioactive gas leaks from a nuclear power plant and pollutes the environment when the air filtration equipment is used, and the technical scheme is as follows: the utility model provides a simulation room, is including the main simulation room that is hollow structure, the inside and outside side opening of intercommunication is seted up to main simulation room, the side opening lid closes the side door that agrees with it, main simulation room is connected with admission line and the pipeline of giving vent to anger, admission line and the pipeline of giving vent to anger are the inner chamber of one end intercommunication main simulation room respectively, and the other end communicates externally. The simulation chamber and the air filtering efficiency test method using the simulation chamber can detect the efficiency of the air filtering equipment so as to ensure the quality of used products.
Description
Technical Field
The invention relates to the technical field of air filtration efficiency detection, in particular to a simulation chamber and an air filtration efficiency test method using the same.
Background
The nuclear power plant is used as an important energy conversion carrier in China, a solid foundation is provided for the development of the economic construction society of China, generally, the nuclear power plant converts nuclear energy into electric energy finally through mechanical energy, a large amount of nuclear fuel needs to be burned in the energy conversion process, harmful gas containing radioactive particles is generated, the harmful gas can seriously affect the living environment of people once being discharged in the air, and meanwhile, the harmful gas can also cause great harm to the health of people, so that a corresponding gas purification system in the nuclear power plant is of great importance. The control means of the nuclear power plant for the radioactive gas includes a radioactive gas purification device, a filter device and an iodine adsorption device.
Compared with iodine adsorption equipment of radioactive gas purification equipment with strong pertinence, the filtering equipment is generally used in a nuclear island, is common equipment and plays an important role in the whole nuclear power air filtering system. Therefore, the nuclear power plant has high requirements on the filtering efficiency of the filtering equipment, but the filtering equipment is limited by processing and producing technologies, and most air filtering equipment manufacturers always have certain defective products in the filtering equipment, so that the requirements of the nuclear power plant cannot be met. If such inferior products are directly supplied to the nuclear power plant, radioactive gas will be leaked out, the environment will be polluted, and the health of personnel around the nuclear power plant will be affected, so a new solution is needed to solve the problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a simulation room and an air filtration efficiency test method using the simulation room, which can detect the filtration efficiency of air filtration equipment so as to ensure that the used air filtration equipment is a qualified product, reduce the probability of radioactive gas leakage of a nuclear power plant and protect the environment.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a simulation room, is including the main simulation room that is hollow structure, the inside and outside side opening of intercommunication is seted up to main simulation room, the side opening lid closes the side door that agrees with it, main simulation room is connected with admission line and the pipeline of giving vent to anger, admission line and the pipeline of giving vent to anger are the inner chamber of one end intercommunication main simulation room respectively, and the other end communicates externally.
Through adopting above-mentioned technical scheme, the user can add the required gas of experiment in the simulation room, will install air equipment in the simulation room to with it and the pipeline connection of giving vent to anger, judge whether qualified product through the air that detects pipeline output of giving vent to anger.
The invention is further configured to: the main simulation room side is provided with reserve simulation room, reserve simulation room is hollow structure, and is connected with reserve admission line and reserve pipeline of giving vent to anger, reserve admission line one end communicates in the pipeline of giving vent to anger, and the other end communicates reserve simulation indoor chamber, the indoor filtration equipment of deciding that is provided with of reserve simulation, reserve pipeline one end of giving vent to anger communicates in deciding filtration equipment, and the other end communicates to the external world.
Through adopting above-mentioned technical scheme, the gas that leaves main simulation room through the pipeline of giving vent to anger can be through being in reserve simulation room of spare admission line entering, only need open at this moment and decide filtration equipment, just can filter the air once more, avoids leading to the polluted environment because the equipment of test is unqualified.
The invention is further configured to: the spare air inlet pipeline is connected with the air outlet pipeline through a connecting point, the spare air inlet pipeline is provided with a first electromagnetic valve, and a second electromagnetic valve is arranged between the connecting point of the air outlet pipeline and the spare air inlet pipeline and the air outlet of the air outlet pipeline.
By adopting the technical scheme, when the data detected by the air outlet pipeline meet the standard, the second electromagnetic valve is opened, the first electromagnetic valve is closed, the fixed filtering equipment is stopped, and at the moment, the air is directly discharged through the air outlet pipeline; when the data detected by the air outlet pipeline does not meet the standard, the second electromagnetic valve is closed, and the first electromagnetic valve and the fixed filtering equipment are opened to re-filter the discharged gas; because the fixed filter equipment does not need to be in the working state all the time, unnecessary energy consumption can be reduced.
The invention is further configured to: be provided with in the master simulation room and be used for separating the inner chamber for the separator who takes place cavity and equipment cavity, the separator includes the motionless baffle and the sliding partition that set up along master simulation room longitudinal section, motionless baffle border is contradicted in master simulation indoor wall, and has seted up the intercommunication mouth along the thickness direction, sliding partition adaptation, and slide and connect in the intercommunication mouth, the separator is including being used for driving the power component that sliding partition slided, it is connected with interim pipeline to take place the cavity, interim pipeline one end is connected and is taken place the cavity, and the other end communicates in reserve simulation room, is provided with the third solenoid valve on the interim pipeline, the side door sets up in equipment cavity lateral wall.
By adopting the technical scheme, the equipment to be tested can be placed in the equipment cavity, when the testing equipment needs to be replaced, a user only needs to utilize the power assembly to close the communication port to separate the generation cavity from the equipment cavity, and then opens the third electromagnetic valve to conduct the generation cavity and the standby simulation chamber through the temporary pipeline; the follow-up user waits for the air that the pipeline output that gives vent to anger detected to accord with the default, can open the side door and dismantle and change test equipment, because needn't stop the air supply equipment, clear up the master simulation room completely, so the operation is more simple and convenient, and waste still less relatively.
The invention is further configured to: the utility model discloses a power assembly, including the stationary baffle, the stationary baffle is provided with the mounting groove that is used for holding sliding baffle in intercommunication mouth side, the mounting groove is open structure towards intercommunication mouth one side, sliding baffle slides and connects in the mounting groove, power assembly includes a plurality of cylinders that set up in sliding baffle and deviate from intercommunication mouth one side, the flexible direction of cylinder is on a parallel with stationary baffle length direction.
By adopting the technical scheme, the sliding of the sliding partition plate can be realized by controlling the expansion and contraction of the air cylinder, so that the operation of a user is facilitated; meanwhile, the invention can be directly used as a power source for the cylinder because the air supply device is necessary, thereby saving the cost.
The technical purpose of the invention is realized by the following technical scheme: a nuclear island air filtration test method using a simulation room comprises the steps of,
step one, installing equipment, including placing aerosol generating equipment into a main simulation chamber; installing air source equipment communicated to the air inlet pipeline; installing aerosol detection equipment, wherein a detection end of the aerosol detection equipment extends into the air outlet pipeline;
step two, preparing, including starting an air source device, an aerosol detection device and an aerosol generation device;
step three, testing, including moving the air filtering equipment to be tested to the main simulation room, connecting the output end of the air filtering equipment to the air inlet end of the air outlet pipeline, and starting the air filtering equipment;
fourthly, concluding that the air in the air outlet end of the air outlet pipeline is detected by aerosol detection equipment, and whether the air filtering equipment is qualified or not is judged according to data output and displayed by the aerosol detection equipment;
and step five, replacing the equipment, namely disassembling and moving out the air filtering equipment in the main simulation room, and moving in and installing the air filtering equipment to be tested.
By adopting the technical scheme, the air in the air outlet pipeline can be detected through the aerosol detection equipment, and whether the air filtering equipment meets the standard or not or whether the efficiency meets the design requirement or not is judged according to the data output by the aerosol detection equipment.
The invention is further configured to: the first step comprises that the aerosol generating device is arranged in the generating chamber, the air filtering device is arranged in the device chamber, the fifth step also comprises,
s1, opening a separating device to separate a generating chamber and an equipment chamber, opening a third electromagnetic valve to communicate with a standby simulation chamber, and opening a fixed filtering device;
and S2, when the data output and displayed by the aerosol detection equipment accord with the preset value, opening the side door, disassembling and moving out the air filter equipment, moving in and installing the air filter equipment to be detected, and closing the side door.
By adopting the technical scheme, when the air filtering equipment in the main simulation chamber is replaced, the air source equipment does not need to be stopped, and the air in the main simulation chamber does not need to be completely cleaned, so that the operation is relatively convenient, and the waste is less.
The invention is further configured to: the first step further comprises that at least two aerosol detection devices are installed, and the fourth step further comprises judging according to data output and displayed by the at least two aerosol detection devices.
By adopting the technical scheme, the problem of certain aerosol detection equipment can be avoided from influencing the detection effect, and the better detection effect can be ensured.
The invention is further configured to: and step four, preventing the leakage, namely closing the second electromagnetic valve, and opening the first electromagnetic valve and the fixed filtering equipment when the data output and displayed by the aerosol detection equipment do not accord with a preset value.
By adopting the technical scheme, the situation that test gas leaks and the environment is polluted due to unqualified test air filtering equipment can be prevented, so that the environment is protected, and the physical health of workers is protected.
The invention is further configured to: the connection point of the aerosol detection device and the air outlet pipeline is arranged between the second electromagnetic valve and the air inlet of the air outlet pipeline.
Through adopting above-mentioned technical scheme, after the gas of pipeline output of giving vent to anger is not conform to the standard, can in time prevent it to discharge to the atmosphere through closing the second solenoid valve, if the tie point of aerosol check out test set and pipeline of giving vent to anger is between the gas outlet of second solenoid valve and pipeline of giving vent to anger, then it is relatively late to close the second solenoid valve when perceiving that the gas is not conforming to the standard, will have more dirty gas to be discharged to the atmosphere, polluted environment.
In conclusion, the invention has the following beneficial effects:
1. the method comprises the steps that a main simulation chamber is arranged, a user can place air filtering equipment to be tested in the main simulation chamber, the aerosol generating equipment is used for simulating the deflection condition of pollutants of the nuclear island, and then whether the air filtering equipment is qualified or not is judged according to gas output to the outside of the main simulation chamber by the air filtering equipment to be detected, and whether the efficiency meets the design requirements or not, so that the used air filtering equipment is ensured to be qualified, the probability of leakage of the pollutants of the nuclear island is reduced, and the environment is protected;
2. a standby simulation chamber is arranged, and fixed filtering equipment is arranged in the standby simulation chamber; the standby simulation chamber is communicated with the main simulation chamber and is used for filtering the air of the main simulation chamber again, so that the phenomenon that pollutants leak out due to unqualified tested equipment is avoided, and the environmental pollution is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention, illustrating an overall structure;
FIG. 2 is an exploded view of the main simulation chamber according to the first embodiment of the present invention, mainly illustrating the structure of the side opening and the side door;
FIG. 3 is an enlarged view of part A of FIG. 1, mainly illustrating the structure of the first solenoid valve and the second solenoid valve;
FIG. 4 is a partial cross-sectional view of the main simulation chamber of the first embodiment of the present invention, mainly illustrating the structure of the separation device;
FIG. 5 is a partial cross-sectional view of a standby simulation chamber according to a first embodiment of the present invention, mainly illustrating the structure of a fixed filtering apparatus;
fig. 6 is a block diagram of steps of the second embodiment of the present invention, which is mainly used to show the overall process.
In the figure: 1. a main simulation chamber; 101. a generation chamber; 102. an apparatus chamber; 103. a temporary pipeline; 1031. a third electromagnetic valve; 11. opening the side; 12. a side door; 21. an air intake duct; 22. an air outlet pipe; 221. a second solenoid valve; 3. a standby simulation room; 41. a standby air inlet pipeline; 411. a first solenoid valve; 42. a spare air outlet pipeline; 5. determining a filtering device; 6. a partitioning means; 61. the baffle is not moved; 611. mounting grooves; 610. a communication port; 62. a sliding partition plate; 63. a power assembly; 631. and a cylinder.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example one
The simulation chamber, referring to fig. 1, includes a main simulation chamber 1, the main simulation chamber 1 is a hollow structure, and the simulation nuclear island is a hemisphere. The main simulation chamber 1 is used for providing a sealed cavity so as to avoid the influence of the leakage of aerosol for testing on the detection effect when an efficiency test is carried out.
Referring to fig. 2, a side opening 11 is formed in a side surface of the main simulation chamber 1, and the side opening 11 communicates an inner cavity of the main simulation chamber 1 with the outside. The side door 12 matched with the side opening 11 is covered on the side opening 11, a sliding groove matched with the side door 12 is formed in the side of the side opening 11, the sliding groove is of an opening structure towards one side of the side opening 11, and the side door 12 is connected in the sliding groove in a sliding mode so as to be connected in the main simulation chamber 1.
At the side door 12 free side (the activity side, do not do with main simulation room 1 junction), install the handle in the one side that deviates from 1 inner chamber of main simulation room to the user can be according to holding handle pulling side door 12, with open and close main simulation room 1 when suitable. When the side door 12 and the side opening 11 are closed, the side door and the side opening are hermetically connected, so that the probability of leakage of test gas is reduced, and the influence on the test is reduced.
An air inlet pipeline 21 and an air outlet pipeline 22 are arranged on the main simulation chamber 1, one end of each of the air inlet pipeline 21 and the air outlet pipeline 22 is communicated with the inner cavity of the main simulation chamber 1, and the other end of each of the air inlet pipeline 21 and the air outlet pipeline 22 is communicated with the outside so as to be matched with an air filtration test. In use, the end of the air inlet duct 21 which extends outwardly enters the main simulation chamber 1 and leaves the main simulation chamber 1 through the outlet duct 22.
Referring to fig. 1 and 3, a spare simulation chamber 3 is provided on a side surface of the main simulation chamber 1, and the spare simulation chamber 3 has the same overall structure as the main simulation chamber 1, and includes a side opening and a side door. A spare air inlet pipeline 41 and a spare air outlet pipeline 42 are arranged on the spare simulation chamber 3; wherein the spare air inlet pipeline 41 is communicated with one end of the air outlet pipeline 22 extending outside, and the other end is communicated with the inner cavity of the spare simulation chamber 3; a fixed filtering device 5 (marked in fig. 5) is installed in the standby simulation chamber 3, one end of the standby air outlet pipeline 42 is communicated with the output end of the fixed filtering device 5, and the other end is communicated with the outside.
The spare simulation chamber 3 is used for processing air which is not filtered and cleaned in an air filtering test to avoid polluting the environment.
Referring to fig. 3, a connection point of a spare inlet duct 41 and an outlet duct 22 is located between an outlet of the outlet duct 22 and the main simulation chamber 1. A second electromagnetic valve 221 for opening and closing the air is installed on the air outlet pipeline 22, and the second electromagnetic valve 221 is positioned between the air outlet of the air outlet pipeline 22 and a connection point of the standby air inlet pipeline 41 and the air outlet pipeline 22; a first solenoid valve 411 is attached to the spare intake duct 41.
When the test device is used, the content of the test gas in the air outlet pipeline 22 is detected, when the content exceeds a preset standard, a user closes the second electromagnetic valve 221, opens the first electromagnetic valve 411 and pours air into the standby simulation chamber 3 so as to further process the air leaving the main simulation chamber 1; if the content of the test gas detected in the outlet pipe 22 meets the standard, the first solenoid valve 411 is closed, and the second solenoid valve 221 is opened to directly discharge.
Referring to fig. 2 and 4, since the main simulation chamber 1 is mainly configured for the air filtering device to detect, in actual operation, the air filtering device to be tested is placed in the main simulation chamber 1, and after the test is completed, the side door 12 needs to be opened to replace the air filtering device, which may be the case: when the new filter equipment needs to be replaced, a user needs to stop supplying air into the main simulation chamber 1, then the air filter equipment is used for filtering the test gas in the main simulation chamber 1, and the side door 12 is opened to replace the air filter equipment. In order to avoid the above situation, the partitioning device 6 is correspondingly arranged in the main simulation chamber 1, the inner cavity of the main simulation chamber 1 can be partitioned into the generation chamber 101 and the equipment chamber 102 through the partitioning device 6, at this time, the air filtering equipment can be placed in the equipment chamber 102, and then the generation chamber 101 and the equipment chamber 102 are disconnected by the partitioning device 6, so that the air filtering equipment can be replaced relatively conveniently.
Referring to fig. 4, the partition means 6 includes a fixed partition 61 and a sliding partition 62, the fixed partition 61 is disposed along a longitudinal section of the main simulation chamber 1, and the edges are tightly connected to an inner wall of the main simulation chamber 1 to partition an inner cavity of the main simulation chamber 1.
The stationary partition 61 is provided with a communication port 610 for communicating the generation chamber 101 and the device chamber 102 in the thickness direction. The communication port 610 is adapted to the sliding partition 62.
On the fixed partition board 61, a mounting groove 611 matched with the sliding partition board 62 is arranged on the side surface of the communication port 610, the mounting groove 611 extends along the length direction of the fixed partition board 61, and the side facing the communication port 610 is of an opening structure; the sliding partition 62 is slidably connected in the mounting groove 611 to realize the connection with the fixed partition 61.
In order to facilitate the sliding of the sliding partition 62, a power assembly 63 is connected to the sliding partition 62, and the power assembly 63 includes a cylinder 631. The cylinder 631 is disposed on one side of the sliding partition plate 62 departing from the communication port 610, the telescopic direction is parallel to the length direction of the fixed partition plate 61, the telescopic rod is fixedly connected with the sliding partition plate 62, and the cylinder body is fixedly connected to the end of the mounting groove 611, so that the sliding partition plate 62 can be driven by the cylinder 631 to slide and open and close the communication port 610.
Referring to fig. 4, in order to be used with the partition device 6, a temporary pipeline 103 is connected to the main simulation chamber 1, one end of the temporary pipeline 103 is communicated with the generation chamber 101, and the other end is communicated with the inner cavity of the standby simulation chamber 3; a third electromagnetic valve 1031 is mounted on the temporary pipe 103; the side door 12 of the main simulation chamber 1 is arranged on the side wall of the equipment chamber 102 to cooperate with the separating device 6 to better replace the air filter equipment to be tested.
Example two
Based on the first embodiment, the present invention provides a nuclear island air filtration test method using a simulation chamber, referring to fig. 2 and 6, including:
step one, installing equipment, and placing aerosol generating equipment into a main simulation chamber 1; the installation air source equipment is communicated to the air inlet end of the air inlet pipeline 21; installing aerosol detection equipment, wherein the detection end of the aerosol detection equipment extends into the air outlet pipeline 22;
step two, preparing, including starting an air source device, an aerosol detection device and an aerosol generation device;
step three, testing, namely moving the air filtering equipment to be tested into the main simulation chamber 1, connecting the output end of the air filtering equipment to the air inlet end of the air outlet pipeline 22, opening the air filtering equipment and closing the side door 12;
step four, concluding that the air in the air outlet end of the air outlet pipeline 22 is detected by aerosol detection equipment, and whether the air filtering equipment is qualified or not is judged according to data output and displayed by the aerosol detection equipment;
and step five, replacing the equipment, namely disassembling and moving out the air filtering equipment in the main simulation room 1, and moving in and installing the air filtering equipment to be tested.
Referring to fig. 3 and 4, the air supply device selects an air compressor; selecting F-1000-DD aerosol detection equipment as aerosol detection equipment; the aerosol generating device is a NUCON SN-10 aerosol generator. When the device is in operation, the separation device 6 is in a state of separating the generation chamber 101 from the generation chamber 101; the first solenoid valve 411 is closed, the second solenoid valve 221 is opened, and the third solenoid valve 1031 is closed. The standard, i.e. the preset value, of the aerosol content in the discharged air is determined according to national standards for environmental hygiene.
Referring to fig. 4, step one further includes positioning an aerosol generating device within the generating chamber 101 and positioning an air filtration device within the generating chamber 101.
The fifth step also comprises:
s1, opening the separating device 6 to separate the generating chamber 101 and the equipment chamber 102, opening the third electromagnetic valve 1031 to communicate with the standby simulation chamber 3, and opening the fixed filtering equipment 5; it now happens that the air inside the chamber 101 cannot enter the equipment chamber 102, but enters the spare simulation chamber 3 through the temporary duct 103 to filter the air through the fixed filtering equipment 5.
And S2, when the data output and displayed by the aerosol detection equipment accord with the preset value, opening the side door 12, disassembling and moving out the air filter equipment, moving in and installing the air filter equipment to be detected, and closing the side door 12.
After the new air filter device is moved into the main simulation chamber 1, the user repeats the steps from one to five, and a new round of test work can be performed.
According to the arrangement, when a user needs to replace the tested air filtering equipment, the operation is carried out according to the step five, at the moment, because the operation such as shutdown of air source equipment is not needed, and the air in the main simulation chamber 1 is not needed to be completely cleaned, the operation is relatively convenient, and more energy is saved.
Referring to fig. 3, in order to ensure the correctness of the detection result, two aerosol detection devices are installed to reduce the problem that the detection result is affected by the occurrence of a problem in a certain aerosol detection device.
Referring to fig. 4, step four further includes an anti-leakage process, when the data output and displayed by the aerosol detection device does not conform to the preset value, the user may close the second electromagnetic valve 221, open the first electromagnetic valve 411 and the fixed filtering device 5, so that the air leaving the main simulation chamber 1 can enter the spare simulation chamber 3 through the air outlet pipe 22 and the spare air inlet pipe 41, so as to be filtered by the fixed filtering device 5, and avoid polluting the environment.
Further, the connection point of the aerosol detection device and the air outlet pipe 22 is arranged between the second electromagnetic valve 221 and the air inlet of the air outlet pipe 22, so that when the content of aerosol in the air outlet pipe 22 exceeds the standard, the aerosol can be effectively prevented from leaking when the second electromagnetic valve 221 is closed.
In order to guarantee the detection effect, the detection end of the aerosol detection equipment can also extend into the main simulation chamber 1 so as to measure the content of the aerosol in the main simulation chamber 1, compare data before and after filtration, and judge whether the air filtering equipment is qualified more intuitively and effectively.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. A simulation chamber, characterized by: the simulation system comprises a main simulation chamber (1) with a hollow structure, wherein the main simulation chamber (1) is provided with a side opening (11) communicated with the inside and the outside, the side opening (11) is covered with a side door (12) matched with the side opening, the main simulation chamber (1) is connected with an air inlet pipeline (21) and an air outlet pipeline (22), one end of each of the air inlet pipeline (21) and the air outlet pipeline (22) is communicated with the inner cavity of the main simulation chamber (1), and the other end of each of the air inlet pipeline (21) and the air outlet pipeline (22);
a standby simulation chamber (3) is arranged on the side face of the main simulation chamber (1), the standby simulation chamber (3) is of a hollow structure and is connected with a standby air inlet pipeline (41) and a standby air outlet pipeline (42), one end of the standby air inlet pipeline (41) is communicated with the air outlet pipeline (22), the other end of the standby air inlet pipeline is communicated with the inner cavity of the standby simulation chamber (3), a fixed filtering device (5) is arranged in the standby simulation chamber (3), one end of the standby air outlet pipeline (42) is communicated with the fixed filtering device (5), and the other end of the standby air outlet pipeline is communicated with the outside;
the main simulation chamber (1) is internally provided with a separating device (6) for separating an inner cavity into a generation chamber (101) and an equipment chamber (102), the separating device (6) comprises an immovable partition plate (61) and a sliding partition plate (62) which are arranged along the longitudinal section of the main simulation chamber (1), the edge of the immovable partition plate (61) is abutted against the inner wall of the main simulation chamber (1), a communication port (610) is formed in the thickness direction, the sliding partition plate (62) is adapted and connected to the communication port (610) in a sliding manner, the separating device (6) comprises a power assembly (63) for driving the sliding partition plate (62) to slide, the generation chamber (101) is connected with a temporary pipeline (103), one end of the temporary pipeline (103) is connected with the generation chamber (101), the other end of the temporary pipeline is communicated with the standby simulation chamber (3), and a third electromagnetic valve (1031) is arranged on the temporary, the side door (12) is arranged on the side wall of the equipment chamber (102).
2. The simulation chamber of claim 1, wherein: the spare air inlet pipe (41) and the tie point of air outlet pipe (22) are located between air outlet pipe (22) gas outlet and the air inlet, be provided with first solenoid valve (411) on spare air inlet pipe (41), be provided with second solenoid valve (221) between the tie point of air outlet pipe (22) and spare air inlet pipe (41) and the gas outlet of air outlet pipe (22).
3. The simulation chamber of claim 1, wherein: the utility model discloses a power component, including stationary baffle (61) and connecting groove (611), stationary baffle (61) is offered in intercommunication mouth (610) side and is used for holding mounting groove (611) of sliding baffle (62), mounting groove (611) is open structure towards intercommunication mouth (610) one side, sliding baffle (62) slide and connect in mounting groove (611), power component (63) include a plurality of cylinder (631) that set up in sliding baffle (62) and deviate from intercommunication mouth (610) one side, cylinder (631) flexible direction is on a parallel with stationary baffle (61) length direction.
4. A nuclear island air filtration test method using a simulation room is characterized in that: the method comprises the following steps of,
step one, installing equipment, including placing aerosol generating equipment into a main simulation chamber (1); mounting air supply equipment which is communicated with an air inlet pipeline (21); installing aerosol detection equipment, wherein a detection end of the aerosol detection equipment extends into the air outlet pipeline (22);
step two, preparing, including starting an air source device, an aerosol detection device and an aerosol generation device;
step three, testing, including moving the air filtering equipment to be tested into the main simulation chamber (1), connecting the output end of the air filtering equipment to the air inlet end of the air outlet pipeline (22), and starting the air filtering equipment;
fourthly, the air filter is judged to be qualified or not by utilizing aerosol detection equipment to detect air in an air outlet end of an air outlet pipeline (22) and according to data output and displayed by the aerosol detection equipment;
and step five, replacing the equipment, namely disassembling and moving out the air filtering equipment in the main simulation room (1), and moving in and installing the air filtering equipment to be tested.
5. The nuclear island air filtration test method using a simulation room according to claim 4, wherein: the first step comprises that the aerosol generating device is arranged in a generating chamber (101), the air filtering device is arranged in a device chamber (102), the fifth step also comprises that,
s1, opening a separating device (6) to separate a generating chamber (101) and an equipment chamber (102), opening a third electromagnetic valve (1031) to communicate with a standby simulation chamber (3), and opening a fixed filtering device (5);
and S2, when the data output and displayed by the aerosol detection equipment accord with the preset value, opening the side door (12), disassembling and moving out the air filter equipment, moving in the air filter equipment to be detected, and closing the side door (12).
6. The nuclear island air filtration test method using a simulation room according to claim 4, wherein: the first step further comprises that at least two aerosol detection devices are installed, and the fourth step further comprises judging according to data output and displayed by the at least two aerosol detection devices.
7. The nuclear island air filtration test method using a simulation room according to claim 4, wherein: and step four, preventing leakage, namely closing the second electromagnetic valve (221), and opening the first electromagnetic valve (411) and the fixed filtering equipment (5) when the data output and displayed by the aerosol detection equipment do not accord with a preset value.
8. The nuclear island air filtration test method using a simulation room according to claim 4, wherein: the connection point of the aerosol detection device and the air outlet pipeline (22) is arranged between the second electromagnetic valve (221) and the air inlet of the air outlet pipeline (22).
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