CN115738566A - Magnetic modified radon daughter air purification device and method suitable for underground engineering - Google Patents
Magnetic modified radon daughter air purification device and method suitable for underground engineering Download PDFInfo
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- CN115738566A CN115738566A CN202211443401.5A CN202211443401A CN115738566A CN 115738566 A CN115738566 A CN 115738566A CN 202211443401 A CN202211443401 A CN 202211443401A CN 115738566 A CN115738566 A CN 115738566A
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Abstract
The invention discloses a magnetic modified radon daughter air purification device and a method suitable for underground engineering, wherein the device comprises a shell, air holes are formed in the shell, a magnetization system and a dust removal and purification system are arranged in the center of the shell, and a filtration and adsorption system is further arranged on the periphery of the inner side of the shell; the filtering and adsorbing system comprises a PP cotton filtering layer, an active carbon filtering and adsorbing layer and an electret material filtering and adsorbing layer; the magnetizing system comprises a magnetizing water tank, wherein a magnet for forming a magnetic induction line and a turbine for driving a water body in the magnetizing water tank to do vortex motion to cut the magnetic induction line during rotation are arranged in the magnetizing water tank; the dust removal and purification system comprises an air pump, a water pump, a first atomizing nozzle used for spraying magnetized water mist to the external environment and a second atomizing nozzle used for backwashing the electret material filtering and adsorbing layer. The invention can obviously improve the high-concentration radon and daughter of the radon in underground engineering and the dust environment.
Description
Technical Field
The invention relates to a dust removal and radon daughter purification device and method, in particular to a magnetic modification radon daughter air purification device and method suitable for underground engineering, and belongs to the technical field of dust removal and radon daughter purification of underground engineering.
Background
The underground engineering environment is characterized by high ground stress, high ground temperature and high osmotic pressure, and is accompanied by excessive radon concentration and other dust pollution, and the harm of the high-concentration dust and radon gas environment to human bodies is irreversible. Radon is a radioactive gaseous element and widely exists in underground environments. Radon exhibits a high affinity for fat and causes significant changes in blood cells. Radon gas is adsorbed to respiratory tract or lung, and released alpha rays can destroy DNA of cells, thereby inducing canceration. In addition, the quantity of dust is also increasing due to the intensive development of resources of underground engineering, workers can easily inhale high-concentration dust to cause pneumoconiosis when working in the environment, and the life health of the underground workers is greatly damaged. Therefore, the prevention and control of radon and daughters thereof and the prevention and control of dust in underground engineering are important problems which need to be solved urgently for the occupational health of underground workers, and how to scientifically and effectively treat radon and dust in the underground environment becomes an urgent technical problem in the field of underground engineering research in China.
At present, the radon gas and dust treatment device is less applied in the market, and most of the devices adopt a method of adsorbing radon daughter and dust by using active carbon to purify air. Chinese utility model patent with publication number CN206746304U discloses an air purification device with radioactive radon filtering function, which is provided with a coating capable of reacting with radioactive radon on an activated carbon fiber filter screen, and detachably establishes the activated carbon fiber filter screen on the air guide assembly, in a manner of matching reaction and adsorption to filter out radioactive radon in the air.
Although the prior device can remove radon daughter and dust in the air to a certain extent, the prior device also has the following problems:
1. the radon daughter has low filtering capacity and needs to be replaced by a filter core. Most of the existing radon daughter air purifiers adopt a method of adsorbing radon daughter by active carbon to purify air. The adsorption capacity of the active carbon to the radon daughters with small particle sizes is not strong, and after the active carbon filter core is used for a period of time, the active carbon filter core needs to be manually purified, so that secondary damage is easily caused to a human body.
2. Does not have the function of secondary purification to the environment. Most of existing air purifiers discharge clean air after filtering dirty air through filter elements, and the mode is not high in purification effect, is suitable for low radon and low dust environment, is not suitable for underground works in the environment of high-concentration dust, radon and daughters thereof, and certainly can not realize function switching according to the actual condition of dust and radon daughters concentration in the underground works environment.
Disclosure of Invention
Based on the technical problems, the invention provides a magnetic modified radon daughter air purification device suitable for underground engineering and an air purification method adopting the device.
The technical solution adopted by the invention is as follows:
a magnetic modified radon daughter air purification device suitable for underground engineering comprises a shell, wherein air holes are formed in the shell, a magnetization system and a dust removal and purification system are arranged in the center of the shell, and a filtering and adsorption system is further arranged on the periphery of the inner side of the shell;
the filtration and adsorption system comprises a PP cotton filtration layer, an active carbon filtration and adsorption layer and an electret material filtration and adsorption layer, the PP cotton filtration layer is arranged close to the shell, and the active carbon filtration and adsorption layer is positioned between the PP cotton filtration layer and the electret material filtration and adsorption layer;
the magnetizing system comprises a magnetizing water tank, a first magnet and a second magnet are arranged in the magnetizing water tank, and a magnetic induction line is formed between the first magnet and the second magnet; a turbine is also arranged in the magnetized water tank and is in transmission connection with a motor through a transmission shaft, and the turbine drives the water body in the magnetized water tank to do vortex motion to cut magnetic induction lines when rotating;
the dust removal and purification system comprises an air pump, a water pump, a first atomizing spray head for spraying magnetized water mist to the external environment and a second atomizing spray head for backwashing and purifying the electret material filtering and adsorbing layer, wherein the first atomizing spray head is arranged at the top of the shell, and the second atomizing spray head is arranged in the shell; the air pump passes through gas conveying pipeline and is connected with first atomizer, and the import of water pump passes through first magnetized drinking water conveying pipeline and magnetization water tank intercommunication, and the export of water pump passes through second magnetized drinking water conveying pipeline and is connected with first atomizer, and the export of water pump still is connected with second atomizer through third magnetized drinking water conveying pipeline.
Preferably, the magnetized water tank is arranged at the central position inside the shell, a first installation chamber is formed between the magnetized water tank and the top of the shell, the water pump is arranged in the first installation chamber, and the first atomizing nozzle is arranged at the top of the first installation chamber;
the filtering and adsorbing system is filled between the magnetized water tank and the side wall of the shell, a second mounting chamber is reserved at the bottom of the magnetized water tank and communicated with the external environment through the filtering and adsorbing system and the shell, the air pump, the second atomizing nozzle and the motor are all arranged in the second mounting chamber, and a power supply connected with the air pump is further arranged in the second mounting chamber.
Preferably, a shielding lead plate is arranged below the magnetized water tank, and the motor is arranged on the bottom surface of the shielding lead plate; the first magnet and the second magnet are horizontally arranged, the first magnet is positioned at the top of the magnetized water tank, the second magnet is positioned at the bottom of the magnetized water tank, and the turbine is arranged at the center of the second magnet; and through shaft holes for the transmission shaft to pass through are formed in the centers of the shielding lead plate, the bottom surface of the magnetized water tank and the second magnet.
Preferably, a sewage tank for collecting water rich in radioactivity is arranged at the bottom of the shell, the upper part of the sewage tank is communicated with the filtering and adsorbing system through a sewer pipe, and the sewer pipe is arranged at a position opposite to an electret material filtering and adsorbing layer in the filtering and adsorbing system; a drain pipe is arranged at the bottom of the sewage tank; the shell of the sewage tank is made of a lead material, or a lead layer is coated on the surface of the shell of the sewage tank.
Preferably, the gas conveying pipeline is provided with a first control valve and a third control valve, the third magnetized water conveying pipeline is provided with a second control valve and a fourth control valve, and the second magnetized water conveying pipeline is provided with a fifth control valve; the first magnetized water conveying pipeline is further connected with a water injection pipeline, and a sixth control valve is arranged on the water injection pipeline.
Preferably, the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve and the sixth control valve are all electric control valves and are all connected with a control device; a liquid level monitoring device is arranged inside the magnetized water tank and is connected with the control device; the air pump, the water pump and the motor are also connected with the control device.
Preferably, the control device is also respectively connected with a dust concentration monitoring device for monitoring the dust concentration of the external environment and a radon gas concentration monitoring device for monitoring the radon gas concentration of the external environment;
the outer surface of the shell is provided with a monitoring display panel for displaying dust concentration and radon gas concentration in real time, and the monitoring display panel is connected with the control device.
Preferably, the outer surface of the shell is also provided with an operation panel, the operation panel is provided with a water body magnetization function key, an air purification function key, a magnetization spraying function key and an equipment self-cleaning function key, and the operation panel is also connected with the control device.
Preferably, the housing is made of a metal material; the whole air purification device is of a conical structure, and universal wheels which are convenient to move are further arranged at the bottom of the shell.
The magnetically modified radon daughter air purifying method suitable for underground engineering adopts the air purifying device, and comprises the following steps:
(1) Opening a sixth control valve, injecting water into the magnetized water tank through a water injection pipeline and a first magnetized water conveying pipeline, then starting a motor, driving a turbine to rotate through a transmission shaft by the motor, making vortex motion of the water body in a magnetic field between a first magnet and a second magnet under the action of the turbine, and cutting magnetic induction lines to obtain magnetized water;
(2) Closing the sixth control valve, opening the fifth control valve, and conveying the magnetized water obtained in the magnetized water tank to the first atomizing nozzle through the first magnetized water conveying pipeline, the water pump and the second magnetized water conveying pipeline;
meanwhile, starting an air pump, filtering air in an external environment by a filtering and adsorbing system, filtering dust in a PP cotton filtering layer, adsorbing large-particle-size radon and radon daughter on an active carbon filtering and adsorbing layer, and adsorbing small-particle-size radon and radon daughter on an electret material filtering and adsorbing layer; opening the first control valve and the third control valve, and conveying the filtered clean air to the first atomizing nozzle through the air pump and the gas conveying pipeline;
in the first atomizing nozzle, clean air is mixed with magnetized water to form gas containing magnetized water mist beads with different humidity, and then the gas is sprayed into the external environment to capture external dust, radon and daughters thereof and increase the particle size of the radon and the daughters thereof, so that the filtering and adsorbing system can better filter and adsorb the gas; in addition, the formed large-particle-size dust is accelerated to settle under the action of gravity, and the effect of environmental dust fall is achieved;
(3) When the dust concentration and the radon concentration in the external environment are lower than set values, closing the first control valve, the third control valve and the fifth control valve, opening the second control valve and the fourth control valve, and conveying the magnetized water in the magnetized water tank to the second atomization nozzle through the first magnetized water conveying pipeline and the third magnetized water conveying pipeline under the action of the water pump;
magnetized water mist is sprayed towards the electret material filtering and adsorbing layer 13 through the second atomizing nozzle 17, the magnetized water mist is combined with radon daughters adsorbed on the electret material filtering and adsorbing layer, naturally settles to the sewage tank through a sewer pipe under the action of gravity and decays, and then is discharged out of the sewage tank through a drain pipe after decaying.
The beneficial technical effects of the invention are as follows:
1. the air purification device has triple purification functions: firstly, can purify external air layer by layer through filtering and adsorption system, dust and the radon daughter of big particle diameter are filtered and adsorbed layer at PP filter layer and active carbon, and the radon daughter of little particle diameter is filtered in electret material filters adsorption layer, is caught by intensive slight electrostatic field to air-purifying. Secondly, the filtered and adsorbed clean air is combined with the magnetized water and atomized to be output to the external environment, and the magnetized water fog has better wettability and surface tension, so that the magnetized water fog can be better combined with dust and radon daughters to form a combination with larger particle size, the dust is easier to settle, and the radon daughters are easier to be filtered and adsorbed by the device. Thirdly, the magnetized water spray sprayed by the internal magnetized water spray nozzle, namely the second atomization spray nozzle, can be combined with the radon daughter adsorbed on the electret material filtering and adsorbing layer, and the water body containing the radon daughter can be settled in the lead-made sewage tank due to the hydrophobicity of the electret material, so that the automatic purification of the adsorbing material is realized.
2. The air purification device has low energy consumption: the device adopts a method of combining magnetized water and traditional adsorption to purify air, the energy consumption is less than that of a purifier with the same volume of electrostatic adsorption, and the device has no harm to the environment.
3. The air purification device is safe and convenient to use and maintain, and cannot cause secondary damage to personnel and the environment: through setting up the magnetization water shower nozzle in that the device is inside and carry out the backwashing, can be so that rich radon daughter electret material etc. normal position purifies, need not the manual work and takes out the filter core and purify, avoid personnel and the secondary damage that rich radon daughter direct contact leads to. And the water body after in-situ purification is settled into a sewage tank, decayed and discharged into the external environment.
4. The air purification device has high intelligent degree, and the monitoring display panel can automatically respond after displaying abnormal concentration. For example, in a low radon and high dust environment, magnetized water can be directly output to the outside to perform spray dust settling. In the high radon and low dust environment, the physical adsorption and the electrostatic adsorption can be directly carried out on the radon daughter, and then the adsorption material is purified by using the spray head inside the magnetized water. In a high radon and high dust environment, the device adsorption and the magnetized water spray can be combined.
5. The method is simple and convenient to operate, can freely switch different functions according to the concentration of dust and radon daughters in the external environment, has high intelligent degree, is safe and environment-friendly, and can be suitable for popularization and application in air purification of underground engineering.
6. The invention integrates radon reduction and dust removal of underground engineering, can realize adsorption of radon and daughters thereof and self-purification of adsorption materials, and can realize double purification of air filtration and magnetized water dust reduction. The invention has simple operation and convenient movement, and can obviously improve the phenomena of high-concentration radon environment and long dust diffusion time of underground engineering.
Drawings
The invention is further described in the following detailed description with reference to the drawings in which:
FIG. 1 is a schematic sectional view of the magnetic modified radon daughter air purification device of the present invention, showing the internal structure of the device;
FIG. 2 is an external schematic view of the magnetic modified radon daughter air purification device of the present invention;
FIG. 3 is a schematic view of the structure principle of the magnetized water tank part in the magnetic modified radon daughter air purification device of the present invention, which shows the effect of water magnetization modification;
FIG. 4 is a schematic view of the connection structure of the first atomizing nozzle, the second atomizing nozzle and other parts in the magnetic modified radon daughter air purification device of the present invention;
FIG. 5 is a schematic block diagram showing the connection of the components in the magnetic modified radon daughter air purification device.
In the figure: 1-a first atomizer, 2-a housing, 3-a monitoring display panel, 4-an operation panel, 5-a switch, 6-a drain pipe, 7-a sewage tank, 8-a universal wheel, 9-a water injection pipeline, 10-a water pump, 11-a PP cotton filter layer, 12-an activated carbon filter and adsorption layer, 13-an electret material filter adsorption layer, 14-a magnetized water tank, 15-a lead shielding plate, 16-a motor, 17-a second atomizer, 18-an air pump, 19-a power supply, 20-a drain pipe, 21-a third magnetized water delivery pipeline, 22-a support base, 23-a first magnet, 24-a first magnetized water delivery pipeline, 25-a water body, 26-a liquid level monitoring device, 27-a turbine, 28-a second magnet, 29-a through shaft hole, 30-a gas delivery pipeline, 31-a second magnetized water delivery pipeline, 32-a control device, 33-a dust concentration monitoring device, 34-a radon gas concentration monitoring device, K1-a first control valve, K2-a second control valve, K3-a third control valve, a fourth control valve, a fifth control valve, and a fifth control valve.
Detailed Description
With the attached drawing, the magnetic modified radon daughter air purification device suitable for underground engineering comprises a shell 2, and air holes are formed in the shell 2, so that the shell has air permeability. A magnetizing system and a dust removal and purification system are arranged in the center of the shell 2, and a filtering and adsorption system is arranged on the inner periphery of the shell 2. The filtering and adsorbing system comprises a PP cotton filtering layer 11, an active carbon filtering and adsorbing layer 12 and an electret material filtering and adsorbing layer 13 from outside to inside in sequence, wherein the PP cotton filtering layer 11 is arranged close to the shell 2, and the active carbon filtering and adsorbing layer 12 is arranged between the PP cotton filtering layer 11 and the electret material filtering and adsorbing layer 13. The magnetizing system includes a magnetizing water tank 14, a first magnet 23 and a second magnet 28 are disposed inside the magnetizing water tank 14, and a magnetic induction line is formed between the first magnet 23 and the second magnet 28. The turbine 27 is also arranged inside the magnetized water tank 14, the turbine 27 is in transmission connection with the motor 16 through a transmission shaft, and when the turbine 27 is driven to rotate by the motor 16, the turbine 27 drives the water body 25 in the magnetized water tank 14 to do vortex motion to cut magnetic induction lines. The dust removal and purification system comprises an air pump 18, a water pump 10, a first atomizer 1 and a second atomizer 17, wherein the first atomizer 1 is arranged at the top of the shell 2 and used for spraying magnetized water mist to the external environment so as to achieve the effect of wetting and combining with radon and dust to modify the external environment. The second atomizer 17 is arranged inside the housing 2 and is used for backwashing the electret material filtering and adsorbing layer 13. The air pump 18 is connected to the first atomizer head 1 via a gas supply line 30. The inlet of the water pump 10 is communicated with the magnetized water tank through a first magnetized water delivery pipeline 24, and the end of the first magnetized water delivery pipeline 24 extends to the bottom of the magnetized water tank 14 and is fixed. The outlet of the water pump is connected with the first atomizer 1 through a second magnetized water delivery pipeline 31, and the outlet of the water pump is also connected with the second atomizer 17 through a third magnetized water delivery pipeline 21.
The invention drives the air pump 18 to operate by the power supply 19, so that the outside dirty air containing radon and daughters thereof passes through the filtering and adsorbing system to be purified to obtain clean air. Meanwhile, the motor 16 is operated to control the rotating speed of the turbine 27 in the magnetized water tank, the turbine is utilized to drive the water body to do vortex motion in the horizontal direction, magnetic induction lines are cut in a magnetic field in the vertical direction, and the speed and time of cutting and magnetizing the water body are controllable. The magnetized water and the purified air are atomized in the first atomizer 1, so that the magnetized water is sprayed outwards to capture radon daughter in the external environment, or the magnetized water is atomized in the second atomizer 17, so that the magnetized water is sprayed inwards to purify radon daughter adsorbed on the electret.
The invention combines the filtering and adsorbing system with the magnetizing system, and the magnetizing system modifies the water body and wets and combines the water body with the dust, radon and daughter of the external environment, thereby better purifying the water body by the filtering and adsorbing system. The radon reduction and dust removal integrated device comprises double purification of air (gravity settling of large-particle-size dust and adsorption and filtration of small-particle-size dust), purification of radon and daughters thereof and automatic purification of adsorption materials.
As a further design of the invention, the magnetized water tank 14 is arranged at the central position inside the outer shell 2, a first installation chamber is formed between the magnetized water tank and the top of the outer shell, the water pump 10 is arranged in the first installation chamber, and the first atomizer head 1 is arranged at the top of the first installation chamber. The filtering and adsorbing system is filled between the side walls of the magnetized water tank and the shell, a second mounting cavity is reserved at the bottom of the magnetized water tank, and the second mounting cavity is communicated with the external environment through the filtering and adsorbing system and the shell. The air pump 18, the second atomizer 17 and the motor 16 are all disposed in a second mounting chamber, and a power supply 19 connected to the air pump 18 is disposed in the second mounting chamber. The device adopts the structural arrangement mode, has reasonable layout, can realize high-efficiency purification of external environment, reduces the whole volume of the device as much as possible, and occupies small space.
Further, a shielding lead plate 15 is provided below the magnetizing water tank 14, and the shielding lead plate 15 functions to shield the influence of the magnet on the motor 16 and to support the apparatus. The motor 16 is disposed on the bottom surface of the shielding lead plate 15. The motor 16 may be a numerically controlled electric motor with 10-13 impellers. The first magnet 23 and the second magnet 28 are both horizontally arranged, the first magnet 23 is positioned at the top of the magnetized water tank 14, and the second magnet 28 is positioned at the bottom of the magnetized water tank 14. The turbine 27 is disposed at the center of the second magnet 28. And a through shaft hole 29 for the transmission shaft to pass through is formed in the centers of the shielding lead plate, the bottom surface of the magnetizing water tank and the second magnet.
Further, a sewage tank 7 for collecting radioactive-rich water is arranged at the bottom of the shell 2, the upper part of the sewage tank 7 is communicated with the filtering and adsorbing system through a sewer pipe 20, and the sewer pipe 20 is arranged at a position opposite to the electret material filtering and adsorbing layer 13 in the filtering and adsorbing system. Due to the hydrophobicity of the electret material, the magnetized water mist enters the sewage tank 7 through the sewer pipe 20 under the action of gravity after being combined with radon and daughter adsorbed by the electret material. A drain pipe 6 is provided at the bottom of the sewage tank 7. The shell of the sewage tank is made of lead materials, and the thickness of the shell is 2cm, so that radioactive elements in the sewage are shielded and naturally decay in the sewage tank.
According to the invention, the sewage tank 7 is additionally arranged, so that the water body after in-situ purification can be settled into the sewage tank 7 to decay, and is discharged into the external environment through the water discharge pipe 6 after the water body decays. The shell of the sewage tank 7 is made of lead materials, so that radiation damage to the outside caused by decay of sewage can be avoided.
Further, a first control valve K1 and a third control valve K3 are provided on the gas delivery line 30. A second control valve K2 and a fourth control valve K4 are provided on the third magnetized water feed line 21, and a fifth control valve K5 is provided on the second magnetized water feed line 31. The first magnetized water delivery pipeline 24 is further connected with a water injection pipeline 9 to supplement a water source to the magnetized water tank 14, and a sixth control valve K6 is arranged on the water injection pipeline 9.
Further, the first control valve K1, the second control valve K2, the third control valve K3, the fourth control valve K4, the fifth control valve K5 and the sixth control valve K6 are all electric control valves and are all connected with the control device 32. A liquid level monitoring device 26 is arranged inside the magnetized water tank, and the liquid level monitoring device 26 is connected with a control device 32. The air pump 18, the water pump 10 and the motor 16 are also connected to the control device 32.
Further, the control device 32 is also connected with a dust concentration monitoring device 33 for monitoring the dust concentration of the external environment and a radon gas concentration monitoring device 34 for monitoring the radon gas concentration of the external environment respectively. The outer surface of the shell 2 is provided with a monitoring display panel 3 for displaying the dust concentration and the radon gas concentration in real time, and the monitoring display panel 3 is connected with a control device 32. An operation panel 4 is further arranged on the outer surface of the shell 2, a water body magnetization function key, an air purification function key, a magnetization spraying function key and an equipment self-cleaning function key are arranged on the operation panel 4, a switch 5 is further arranged at the upper left corner of the operation panel 4, and the operation panel 4 is also connected with a control device 32.
The user can operate the operation panel 4 to switch between the functions of the air purification device. The method comprises the following specific steps: firstly, the switch 5 of the operation panel is touched, the water body magnetization function button is clicked, the magnetized water tank 14 automatically supplies water, and after the water supply is finished, the motor 16 drives the turbine 27 to rotate. The water body does vortex motion in a magnetic field under the action of the turbine, and magnetic induction lines are cut to obtain magnetized water. Returning to the main interface, clicking the air purification function button, and starting the air pump 18, so that the external air is sucked into the air pump 18 through the three-stage filter screen, namely the filtering and adsorbing system. Dust is filtered in the PP cotton filter layer 11, large-particle-size radon and radon daughter are adsorbed in the activated carbon filtering and adsorbing layer 12, and small-particle-size radon and radon daughter are adsorbed in the electret material filtering and adsorbing layer 13 with static electricity. Clean air is introduced into the first atomizer 1 at the tip of the device by an air pump 18 to combine with the magnetized water. The magnetized spraying function key is clicked, so that the gas containing the magnetized water mist beads with different humidity can be emitted to the air to capture external dust, radon and daughters thereof. The particle size of radon and daughters thereof is increased, so that the device can better filter and adsorb. In addition, the dust with large particle size is accelerated to settle under the action of gravity, and the dust settling effect on the environment can also be achieved. When the dust concentration of the display panel and the radon concentration are lower than set values to be monitored, clicking a self-cleaning function button of the equipment, conveying the magnetized water body into a second atomizing nozzle 17 in the device under the action of the water pump 10, and spraying magnetized water mist into the device. The magnetized water mist is combined with radon daughter adsorbed on the hydrophobic electret material, naturally sinks into the lead-made sewage tank to decay under the action of gravity, and is discharged out of the equipment after the decay.
Further, the housing 2 is made of a metal material. This air purification device wholly is the toper structure, adopts this structural arrangement mode, can be so that the device occupation space is small, has great area of contact simultaneously as far as possible with external environment, and is high to the dust in the air and radon daughter adsorption efficiency. The bottom of the shell 2 is also provided with universal wheels 8 to facilitate the movement of the whole device. A supporting base 22 is arranged at the center of the bottom of the housing 2 and at the center of the sewage tank 7, and the supporting base 22 can support the power supply 19 and the like and can enhance the overall strength of the device.
The air purification device of the invention integrates the functions of radon reduction by magnetized water and dust removal, the filtering and adsorbing system, the magnetizing system and the like in the device can be independently arranged, the disassembly and the assembly are convenient, and a supporting framework can be correspondingly arranged in the shell.
The exterior of the electric appliances such as the motor 16, the air pump 18, the water pump 10 and the like are coated with a wear-resistant and corrosion-resistant layer with the thickness of 0.2mm, and meanwhile, a flexible waterproof material layer can be further mixed or added.
The electret material can be selected from high polymer electrets such as polyvinylidene fluoride and fluorinated ethylene propylene copolymer, and the adsorption principle is that fibers on the surfaces of the electrets are charged, and double purification of mechanical blocking and electrostatic adsorption of radon and daughters thereof is realized on the high-density electret material layer.
The gas supply line 30 and the third magnetized water supply line 21 are both arranged along the outer side wall of the magnetized water tank 14, wherein fig. 4 shows a structure of an arrangement manner, and a partial section of the third magnetized water supply line 21 is not shown in fig. 1. The second atomizer 17 may be further connected to an air pump 18.
The invention provides a magnetic modified radon daughter air purification device suitable for underground engineering, which is different from a simple radon and daughter adsorption and spray dust removal mode. The device sets up inside to outside two parts atomizer, conveniently carries out self-purification to the adsorption material, need not artifically change the electret material, avoids causing the secondary damage to personnel. The magnetization mode selects the water body to form a vortex rotating at high speed in a magnetic field under the action of the turbine, so that the magnetization time is controllable, and the magnetization effect is improved.
The invention also provides a magnetic modified radon daughter air purification method suitable for underground engineering, which adopts the air purification device and comprises the following steps:
(1) And opening a sixth control valve K6, injecting water into the magnetized water tank 14 through the water injection pipeline 9 and the first magnetized water conveying pipeline 24, then starting the motor 16, driving the turbine 27 to rotate by the motor 16 through a transmission shaft, making the water body do vortex motion in a magnetic field between the first magnet 23 and the second magnet 28 under the action of the turbine, and cutting magnetic induction lines to obtain magnetized water.
(2) The sixth control valve K6 is closed, the fifth control valve K5 is opened, and the magnetized water obtained from the magnetized water tank 14 is delivered to the first atomizer 1 through the first magnetized water delivery pipe 24, the water pump 10, and the second magnetized water delivery pipe 31.
Meanwhile, the air pump 18 is started, air in the external environment is filtered by the filtering and adsorbing system, dust is filtered in the PP cotton filtering layer 11, large-particle-size radon and radon daughter are adsorbed in the active carbon filtering and adsorbing layer 12, and small-particle-size radon and radon daughter are adsorbed in the electret material filtering and adsorbing layer 13. The first control valve K1 and the third control valve K3 are opened, and the filtered clean air is delivered to the first atomizer head 1 through the air pump 18 and the gas delivery line 30. In the first atomizer 1, clean air is mixed with magnetized water to form gas containing magnetized water mist beads with different humidity, and then the gas is sprayed into the external environment to capture external dust, radon and daughter thereof and increase the particle size of the radon and the daughter thereof, so that the filtering and adsorbing system can better filter and adsorb the gas. In addition, the formed large-particle-size dust is accelerated to settle under the action of gravity, and the effect of environmental dust fall is achieved.
(3) And when the dust concentration and the radon gas concentration in the external environment are lower than set values, closing the first control valve K1, the third control valve K3 and the fifth control valve K5, and opening the second control valve K2 and the fourth control valve K4. The magnetized water in the magnetized water tank 14 is transported to the second atomizer 17 through the first magnetized water transport pipeline 24 and the third magnetized water transport pipeline 21 under the action of the water pump 10. Magnetized water mist is sprayed toward the electret material filtering and adsorbing layer 13 through a second atomizing nozzle 17. The magnetized water mist is combined with radon daughters adsorbed on the electret material filtering and adsorbing layer, naturally sinks into the sewage tank 7 through the sewer pipe to decay under the action of gravity, and is discharged out of the sewage tank 7 through the drain pipe 6 after decaying.
The parts which are not described in the above modes can be realized by adopting or referring to the prior art.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (10)
1. The utility model provides a modified radon daughter air purification device of magnetism suitable for underground works which characterized in that: the air-permeable dust collector comprises a shell, wherein air holes are formed in the shell, a magnetizing system and a dust removing and purifying system are arranged in the center of the shell, and a filtering and adsorbing system is arranged on the periphery of the inner side of the shell;
the filtration and adsorption system comprises a PP cotton filtration layer, an active carbon filtration and adsorption layer and an electret material filtration and adsorption layer, the PP cotton filtration layer is arranged close to the shell, and the active carbon filtration and adsorption layer is arranged between the PP cotton filtration layer and the electret material filtration and adsorption layer;
the magnetizing system comprises a magnetizing water tank, a first magnet and a second magnet are arranged in the magnetizing water tank, and a magnetic induction line is formed between the first magnet and the second magnet; a turbine is also arranged in the magnetized water tank and is in transmission connection with a motor through a transmission shaft, and the turbine drives the water body in the magnetized water tank to do vortex motion to cut magnetic induction lines when rotating;
the dust removal and purification system comprises an air pump, a water pump, a first atomizing spray head for spraying magnetized water mist to the external environment and a second atomizing spray head for backwashing and purifying the electret material filtering and adsorbing layer, wherein the first atomizing spray head is arranged at the top of the shell, and the second atomizing spray head is arranged in the shell; the air pump passes through gas conveying pipeline and is connected with first atomizer, and the import of water pump passes through first magnetized drinking water conveying pipeline and magnetization water tank intercommunication, and the export of water pump passes through second magnetized drinking water conveying pipeline and is connected with first atomizer, and the export of water pump still is connected with second atomizer through third magnetized drinking water conveying pipeline.
2. The magnetically modified radon daughter air purification device suitable for underground engineering as claimed in claim 1, wherein: the water pump is arranged in the first mounting chamber, and the first atomizing nozzle is arranged at the top of the first mounting chamber;
the filtering and adsorbing system is filled between the magnetized water tank and the side wall of the shell, a second mounting chamber is reserved at the bottom of the magnetized water tank and communicated with the external environment through the filtering and adsorbing system and the shell, the air pump, the second atomizing nozzle and the motor are all arranged in the second mounting chamber, and a power supply connected with the air pump is further arranged in the second mounting chamber.
3. The magnetically modified radon daughter air purification device suitable for underground engineering as claimed in claim 1, wherein: a shielding lead plate is arranged below the magnetized water tank, and the motor is arranged on the bottom surface of the shielding lead plate; the first magnet and the second magnet are horizontally arranged, the first magnet is positioned at the top of the magnetized water tank, the second magnet is positioned at the bottom of the magnetized water tank, and the turbine is arranged at the center of the second magnet; and through shaft holes for the transmission shaft to pass through are formed in the centers of the shielding lead plate, the bottom surface of the magnetized water tank and the second magnet.
4. The magnetically modified radon daughter air purification device suitable for underground engineering as claimed in claim 1, wherein: the bottom of the shell is provided with a sewage tank for collecting water rich in radioactivity, the upper part of the sewage tank is communicated with a filtering and adsorbing system through a sewer pipe, and the sewer pipe is arranged at a position opposite to an electret material filtering and adsorbing layer in the filtering and adsorbing system; a drain pipe is arranged at the bottom of the sewage tank; the shell of the sewage tank is made of a lead material, or a lead layer is coated on the surface of the shell of the sewage tank.
5. The magnetically modified radon daughter air purification device suitable for underground works as claimed in claim 1, wherein: a first control valve and a third control valve are arranged on the gas conveying pipeline, a second control valve and a fourth control valve are arranged on the third magnetized water conveying pipeline, and a fifth control valve is arranged on the second magnetized water conveying pipeline; the first magnetized water conveying pipeline is further connected with a water injection pipeline, and a sixth control valve is arranged on the water injection pipeline.
6. The magnetically modified radon daughter air purification device suitable for underground engineering as claimed in claim 5, wherein: the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve and the sixth control valve are all electric control valves and are all connected with a control device; a liquid level monitoring device is arranged inside the magnetized water tank and is connected with the control device; the air pump, the water pump and the motor are also connected with the control device.
7. The magnetically modified radon daughter air purification device suitable for underground engineering as claimed in claim 6, wherein: the control device is also respectively connected with a dust concentration monitoring device for monitoring the dust concentration of the external environment and a radon gas concentration monitoring device for monitoring the radon gas concentration of the external environment;
the outer surface of the shell is provided with a monitoring display panel for displaying dust concentration and radon gas concentration in real time, and the monitoring display panel is connected with the control device.
8. The magnetically modified radon daughter air purification device suitable for underground works as claimed in claim 6, wherein: the surface of the shell is also provided with an operation panel, the operation panel is provided with a water body magnetization function key, an air purification function key, a magnetization spraying function key and an equipment self-cleaning function key, and the operation panel is also connected with a control device.
9. The magnetically modified radon daughter air purification device suitable for underground engineering as claimed in claim 1, wherein: the shell is made of a metal material; the whole air purification device is of a conical structure, and universal wheels which are convenient to move are further arranged at the bottom of the shell.
10. A magnetically modified radon daughter air purification method suitable for underground engineering, which uses the air purification device as claimed in any one of claims 1 to 9, and comprises the following steps:
(1) Opening a sixth control valve, injecting water into the magnetized water tank through a water injection pipeline and a first magnetized water conveying pipeline, then starting a motor, driving a turbine to rotate through a transmission shaft by the motor, making vortex motion of the water body in a magnetic field between a first magnet and a second magnet under the action of the turbine, and cutting magnetic induction lines to obtain magnetized water;
(2) Closing the sixth control valve, opening the fifth control valve, and conveying the magnetized water obtained in the magnetized water tank to the first atomizing nozzle through the first magnetized water conveying pipeline, the water pump and the second magnetized water conveying pipeline;
meanwhile, starting an air pump, filtering air in an external environment through a filtering and adsorbing system, filtering dust in a PP cotton filtering layer, adsorbing large-particle-size radon and radon daughter in an active carbon filtering and adsorbing layer, and adsorbing small-particle-size radon and radon daughter in an electret material filtering and adsorbing layer; opening the first control valve and the third control valve, and conveying the filtered clean air to the first atomizing nozzle through the air pump and the gas conveying pipeline;
in the first atomizing nozzle, clean air is mixed with magnetized water to form gas containing magnetized water mist beads with different humidity, and then the gas is sprayed into the external environment to capture external dust, radon and daughters thereof and increase the particle size of the radon and the daughters thereof, so that the filtering and adsorbing system can better filter and adsorb the gas; in addition, the formed large-particle-size dust is accelerated to settle under the action of gravity, and the effect of environmental dust fall is achieved;
(3) When the dust concentration and the radon concentration in the external environment are lower than set values, closing the first control valve, the third control valve and the fifth control valve, opening the second control valve and the fourth control valve, and conveying the magnetized water in the magnetized water tank to the second atomization nozzle through the first magnetized water conveying pipeline and the third magnetized water conveying pipeline under the action of the water pump;
magnetized water mist is sprayed towards the electret material filtering and adsorbing layer 13 through the second atomizing nozzle 17, and the magnetized water mist is combined with radon daughters adsorbed on the electret material filtering and adsorbing layer, naturally settles into the sewage tank through a downcomer under the action of gravity and decays, and is discharged out of the sewage tank through the drainpipe after decaying.
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