A purification ventilation device

Abstract

The application discloses a purification ventilation device, which comprises an exhaust chamber, a ventilation assembly and a driving assembly. The exhaust chamber is adapted to be installed on a factory roof. A communication port and a ventilation structure are arranged on one side of the exhaust chamber close to the roof. The communication port is adapted to be communicated with the factory, and the ventilation structure is adapted to communicate the exhaust chamber with the outside. The ventilation assembly is arranged on the ventilation structure and comprises a ventilation piece adapted to guide the pollutants to be discharged to the outside. The driving assembly is adapted to be arranged on the factory roof and connected with the ventilation piece. The driving assembly comprises a photovoltaic power supply system and / or a compressed air system, and both the photovoltaic power supply system and the compressed air system are adapted to provide power for the ventilation piece. The purification ventilation device with the above structure can still discharge radioactive pollutants to the outside when losing power, thereby avoiding the harm to the nearby personnel.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ventilation technology, in particular to a purification ventilation device. BACKGROUND

[0002] Some rooms of nuclear power plant release heat, steam and radioactive pollutants simultaneously under accident conditions, if they cannot be discharged through organized purification and ventilation device, they will spread to the outside, which will cause adverse effects on the nearby personnel.

[0003] The rooms of nuclear power plant releasing heat and pollutants simultaneously are mostly high space, the annual average wind speed of China's coastal nuclear power plant site is more than 3m / s, which has good natural ventilation conditions. But due to the special requirements of anti-seismic, anti-large plane crash, anti-projectile, anti-shock wave, anti-tornado, anti-rain and anti-sand, etc., large area natural ventilation openings cannot be set in such plant.

[0004] In the prior art, the active ventilation device composed of axial flow or centrifugal fan, high-efficiency air particle filter and iodine adsorber is used to purify and discharge radioactive pollutants, which has high reliability requirement for power supply and occupies large emergency power capacity. Once the power supply is lost, the radioactive pollutants cannot be purified and discharged, which will cause harm to the nearby personnel. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is to overcome the defects that the ventilation device has high reliability requirement for power supply, occupies large emergency power capacity, and once the power supply is lost, the radioactive pollutants cannot be purified and discharged, which will cause harm to the nearby personnel.

[0006] To this end, the present application provides a purification ventilation device, comprising:

[0007] An exhaust chamber adapted to be installed on the roof of the plant, the exhaust chamber is provided with a communication port on one side close to the roof and a ventilation structure, the communication port is adapted to communicate with the plant, and the ventilation structure is adapted to communicate the exhaust chamber with the outside;

[0008] A ventilation assembly provided on the ventilation structure, the ventilation assembly comprises a ventilation member, and the ventilation member is adapted to guide the pollutants to be discharged to the outside;

[0009] A drive assembly adapted to be provided on the roof of the plant and connected with the ventilation member, the drive assembly comprises a photovoltaic power supply system and / or a compressed air system, and the photovoltaic power supply system and the compressed air system are both adapted to provide power for the ventilation member.

[0010] Optionally, the purification ventilation device described above, the photovoltaic power supply system comprises:

[0011] A photovoltaic panel adapted to be installed on a roof of a factory building for converting solar energy into electric energy;

[0012] A storage battery adapted to be installed on the roof of the factory building for storing the electric energy outputted by the photovoltaic panel;

[0013] An inverter disposed on the exhaust chamber for converting direct current of the storage battery side into alternating current;

[0014] The photovoltaic panel, the storage battery, the inverter and the ventilation component are electrically connected.

[0015] Optionally, the purification ventilation device, the compressed air system comprises:

[0016] A compressed air storage tank adapted to be installed on the roof of the factory building and adapted to store compressed air;

[0017] A compressed air pipeline, one end of which is connected to the compressed air storage tank and the other end of which is connected to the air inlet of the ventilation component;

[0018] An ejector disposed on the compressed air pipeline and adapted to inject air in the exhaust chamber into the ventilation component.

[0019] Optionally, the purification ventilation device, the ventilation component is a bladeless fan.

[0020] Optionally, the purification ventilation device, the ventilation structure is a ventilation pipeline formed on the end of the exhaust chamber, and the ventilation component is disposed at the entrance of the ventilation pipeline.

[0021] Optionally, the purification ventilation device, the ventilation assembly further comprises a ventilation mechanism disposed at the exit of the ventilation pipeline, and the ventilation mechanism comprises:

[0022] A support frame disposed on the inner wall at the exit of the ventilation pipeline;

[0023] A shaft rotatably disposed on the support frame;

[0024] A cover and a rotating cylinder, the cover and the rotating cylinder are disposed on the shaft at intervals and rotate synchronously with the shaft, and the rotating cylinder is provided with a support impeller;

[0025] Blades disposed between the cover and the rotating cylinder and adapted to discharge air in the exhaust chamber.

[0026] Optionally, the ventilation device, the ventilation mechanism further comprises a deceleration pad, the deceleration pad is arranged between the support frame and the rotating cylinder, and is adapted to buffer the support frame when the support frame approaches the rotating cylinder.

[0027] Optionally, the ventilation device further comprises a purification assembly arranged between the air outlet chamber and the communication port; the purification assembly comprises:

[0028] a box arranged on the communication port, the communication port being in communication with the interior of the box;

[0029] a filter arranged on the communication port, the filter being adapted to filter impurities in air;

[0030] an iodine adsorption structure arranged on the communication port and spaced apart from the filter, the iodine adsorption structure being adapted to adsorb harmful substances in air.

[0031] Optionally, the ventilation device, the purification assembly further comprises a heating element arranged on the box to heat the iodine adsorption structure.

[0032] Optionally, the ventilation device, the iodine adsorption structure comprises two connected iodine adsorbers, and the two iodine adsorbers and the filter are arranged in a triangular shape.

[0033] Optionally, the ventilation device further comprises a protection assembly mounted on the air outlet chamber, the protection assembly comprising at least one accommodating cavity, the protection assembly having an open state in which the accommodating cavity is in communication with the outside world so that the ventilation mechanism is exposed to the outside world, and a closed state in which the accommodating cavity is isolated from the outside world so that the ventilation mechanism is covered in the accommodating cavity.

[0034] Optionally, the ventilation device, the protection assembly comprises:

[0035] at least two covers rotatably connected to the outlet of the ventilation duct, the covers being capable of covering the ventilation mechanism to form the accommodating cavity;

[0036] at least two first telescopic members, one end of each of the first telescopic members being rotatably connected to the cover, and the other end being rotatably connected to the outer wall of the air outlet chamber, the two ends of the first telescopic members being moved in a relatively close direction or a relatively far direction to open or close the cover;

[0037] a first actuating member arranged in the air outlet chamber and adapted to control the two ends of the first telescopic members to move in the relatively close direction or the relatively far direction.

[0038] Optionally, the purification ventilation device, the protection assembly comprises:

[0039] The mounting seat is arranged on the inner wall of the ventilation duct, and the first support and the second support are arranged on the mounting seat in a spaced manner;

[0040] The second telescopic member is arranged on the first support and the second support, and the output end of the second telescopic member is connected with the shaft;

[0041] The sliding seat is arranged on the shaft, and the two ends of the sliding seat are respectively provided with the buffer members;

[0042] The closing cover is arranged on one side of the cover body and is suitable for closing the ventilation duct;

[0043] The second execution member is arranged in the exhaust chamber and is suitable for controlling the two ends of the second telescopic member to move in the direction of relatively approaching or in the direction of relatively moving away;

[0044] The internal space at the outlet of the ventilation duct is the containing cavity.

[0045] Optionally, the purification ventilation device further comprises a control assembly, and the control assembly comprises:

[0046] The first sensor is electrically connected with the execution member and is suitable for detecting the temperature in the factory building to control the execution member to be turned on; and / or,

[0047] The second sensor is electrically connected with the execution member and is suitable for detecting the pressure in the factory building to control the execution member to be turned on; and / or,

[0048] The third sensor is electrically connected with the execution member and is suitable for detecting the radioactivity concentration in the factory building to control the execution member to be turned on.

[0049] The technical scheme provided by the present application has the following advantages:

[0050] 1. The purification ventilation device provided by the present application comprises an exhaust chamber, a ventilation assembly and a driving assembly, the exhaust chamber is suitable for being installed on the roof of a factory building, the exhaust chamber is provided with a communication port on one side close to the roof and a ventilation structure, the communication port is suitable for being communicated with the factory building, and the ventilation structure is suitable for communicating the exhaust chamber with the outside; the ventilation assembly is arranged on the ventilation structure, the ventilation assembly comprises a ventilation member, the ventilation member is suitable for guiding the contaminated material to be discharged to the outside; the driving assembly is suitable for being arranged on the roof of the factory building and is connected with the ventilation member, the driving assembly comprises a photovoltaic power supply system and / or a compressed air system, and the photovoltaic power supply system and the compressed air system are both suitable for providing power for the ventilation member.

[0051] The purification ventilation device has the advantages that the exhaust chamber is arranged on the roof of the factory building, the ventilation assembly is arranged on the ventilation structure, and the driving assembly is arranged on the roof of the factory building, the communication port connects the exhaust chamber and the factory building, the pollutants in the factory building can enter the exhaust chamber, the ventilation structure is communicated with the outside, the pollutants in the exhaust chamber can be discharged to the outside, the ventilation piece can guide the pollutants to be discharged to the outside, the photovoltaic power supply system and the compressed air system provide power for the ventilation piece to discharge the pollutants to the outside, the pollutants can be discharged to the outside by the ventilation piece when the power supply is lost, and harm to nearby personnel is avoided.

[0052] 2. The purification ventilation device provided by the application has the advantages that the photovoltaic power supply system comprises photovoltaic panels, a storage battery and an inverter, the photovoltaic panels are suitable for being installed on the roof of the factory building and are used for converting solar energy into electric energy, the storage battery is suitable for being installed on the roof of the factory building and is used for storing the electric energy output by the photovoltaic panels, the inverter is arranged on the exhaust chamber and is used for converting direct current of the storage battery into alternating current, and the photovoltaic panels, the storage battery, the inverter and the ventilation piece are electrically connected.

[0053] The purification ventilation device has the advantages that the photovoltaic panels are arranged on the roof of the factory building, the storage battery is installed on the roof of the factory building, and the inverter is arranged on the exhaust chamber, the photovoltaic panels can absorb solar energy and convert the solar energy into electric energy, the storage battery can store the electric energy converted by the photovoltaic panels, the inverter can convert direct current transmitted by the storage battery into alternating current and transmit the alternating current to the ventilation piece, the ventilation piece is enabled to work and discharge the pollutants in the exhaust chamber, the dependence of the ventilation piece on the power supply is further reduced, the radioactive pollutants can be discharged to the outside by the ventilation piece when the power supply is lost, and harm to nearby personnel is avoided.

[0054] 3. The purification ventilation device provided by the application has the advantages that the compressed air system comprises a compressed air storage tank, a compressed air pipeline and an ejector, the compressed air storage tank is suitable for being installed on the roof of the factory building and is used for storing compressed air, one end of the compressed air pipeline is connected with the compressed air storage tank, the other end of the compressed air pipeline is connected with the air inlet of the ventilation piece, and the ejector is arranged on the compressed air pipeline and is used for injecting the air in the exhaust chamber into the ventilation piece.

[0055] The purification ventilation device has the advantages that the compressed air storage tank can store a large amount of compressed air, the compressed air pipeline connects the compressed air storage tank and the ventilation component, the compressed air in the compressed air storage tank can flow into the ventilation component, the ejector can mix the air in the exhaust chamber with the compressed air by using the dynamic pressure of the compressed air, so that the air in the exhaust chamber is injected into the ventilation component, the ventilation component works, and the pollutants in the exhaust chamber are discharged, the dependence of the ventilation component on the power supply is reduced, the ventilation component can still discharge the radioactive pollutants to the outside when the power supply is lost, and the harm to the nearby personnel is avoided.

[0056] 4. The purification ventilation device provided by the application further comprises a purification assembly, which is arranged between the exhaust chamber and the communication port; the purification assembly comprises a box body, a filter and an iodine adsorption structure; the box body is arranged on the communication port and communicates with the interior of the box body; the filter is arranged on the communication port and is suitable for filtering impurities in the air; and the iodine adsorption structure is arranged on the communication port in a spaced-apart manner from the filter and is suitable for absorbing harmful substances in the air.

[0057] The purification ventilation device has the advantages that the box body is arranged on the communication port, the filter is arranged on the communication port, and the iodine adsorption structure is arranged on the communication port in a spaced-apart manner from the filter, the communication port connects the box body and the workshop, the pollutants can enter the box body, the filter can filter the pollutants in the air, and the iodine adsorption structure can absorb the harmful substances in the air, so that the polluted air entering the box body is filtered and purified, and the health of the workers is not harmed. BRIEF DESCRIPTION OF DRAWINGS

[0058] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0059] Figure 1 It is a structure schematic view of the purification ventilation device provided in the embodiment of the application when the protection assembly is closed;

[0060] Figure 2 It is a structure schematic view of the purification ventilation device provided in the embodiment of the application when the protection assembly is opened;

[0061] Figure 3 It is a structure schematic view of the ventilation mechanism of the purification ventilation device provided in the embodiment of the application;

[0062] Figure 4 Structure diagram of rotating cylinder in ventilation mechanism of purification ventilation device provided in the embodiment of the present application;

[0063] Figure 5 Structure diagram of another protective assembly in closed state in purification ventilation device provided in the embodiment of the present application;

[0064] Figure 6 Structure diagram of another protective assembly in open state in purification ventilation device provided in the embodiment of the present application;

[0065] Explanation of reference numerals:

[0066] 1 - exhaust chamber; 11 - communication port; 12 - ventilation pipeline;

[0067] 21 - ventilation piece; 22 - ventilation mechanism; 221 - support frame; 222 - cover body; 223 - shaft; 224 - rotating cylinder; 225 - blade; 226 - support impeller; 227 - speed reduction gasket;

[0068] 311 - photovoltaic panel; 312 - storage battery; 313 - inverter; 321 - compressed air storage tank; 322 - compressed air pipeline; 323 - ejector;

[0069] 41 - box body; 42 - filter piece; 43 - iodine adsorption structure; 44 - heating piece;

[0070] 51 - cover body; 52 - first telescopic piece; 53 - first execution piece; 54 - mounting seat; 541 - first support piece; 542 - second support piece; 55 - second telescopic piece; 56 - sliding seat; 57 - buffer piece; 58 - closing cover; 59 - second execution piece;

[0071] 61 - first sensor; 62 - second sensor; 63 - third sensor. DETAILED DESCRIPTION

[0072] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0073] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0074] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0075] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0076] Example

[0077] This embodiment provides a purification and ventilation device, such as Figures 1 to 6 As shown, the device includes an exhaust chamber 1, a ventilation assembly, and a drive assembly. The exhaust chamber 1 is suitable for installation on the roof of a factory building. The exhaust chamber 1 has a connecting opening 11 on one side near the roof and a ventilation structure. The connecting opening 11 is suitable for connecting with the factory building, and the ventilation structure is suitable for connecting the exhaust chamber 1 with the outside. The ventilation assembly is installed on the ventilation structure and includes a ventilation component 21, which is suitable for guiding pollutants to be discharged to the outside. The drive assembly is suitable for installation on the roof of the factory building and is connected to the ventilation component 21. The drive assembly includes a photovoltaic power supply system and a compressed air system, both of which are suitable for providing power to the ventilation component 21. The purification and ventilation device described above connects the exhaust chamber 1 on the factory roof, the ventilation components on the ventilation structure, and the drive components on the factory roof. The connection port 11 connects the exhaust chamber 1 to the factory building, allowing pollutants in the factory building to enter the exhaust chamber 1. The ventilation structure is connected to the outside, allowing pollutants in the exhaust chamber 1 to be discharged to the outside. The ventilation component 21 guides the pollutants to be discharged to the outside. The photovoltaic power supply system and the compressed air system provide power to the ventilation component 21 to discharge pollutants to the outside. This is beneficial because even when the power is lost, the ventilation component 21 can still discharge radioactive pollutants to the outside, avoiding harm to nearby personnel.

[0078] Specifically in the embodiment, the ventilation piece 21 is a bladeless fan 225, the bladeless fan 225 is low in cost, high in safety coefficient and convenient to clean.

[0079] The purification ventilation device provided by the application has the advantages that Figure 1 and Figure 2 As shown in the figure, the photovoltaic power supply system comprises a photovoltaic panel 311, a storage battery 312 and an inverter 313, the photovoltaic panel 311 is adapted to be installed on the roof of the factory building and is used for converting solar energy into electric energy, the storage battery 312 is adapted to be installed on the roof of the factory building and is used for storing the electric energy output by the photovoltaic panel 311, the inverter 313 is arranged on the exhaust chamber 1 and is used for converting the direct current from the storage battery 312 into alternating current, and the photovoltaic panel 311, the storage battery 312, the inverter 313 and the ventilation piece 21 are electrically connected. The purification ventilation device has the advantages that the photovoltaic panel 311 installed on the roof of the factory building can absorb solar energy and convert the solar energy into electric energy, the storage battery 312 installed on the roof of the factory building can store the electric energy converted by the photovoltaic panel 311, and the inverter 313 arranged on the exhaust chamber 1 can convert the direct current from the storage battery 312 into alternating current and transmit the alternating current to the ventilation piece 21, so that the ventilation piece 21 works and the pollutants in the exhaust chamber 1 are discharged, and the dependence of the ventilation piece 21 on the power supply is further reduced, so that the ventilation piece 21 can still discharge radioactive pollutants to the outside when the power supply is lost, and the harm to the nearby personnel is avoided.

[0080] The purification ventilation device provided by the application has the advantages that Figure 1 and Figure 2As shown, the compressed air system comprises a compressed air tank 321, a compressed air pipeline 322 and an ejector 323, the compressed air tank 321 is adapted to be installed on the roof of the factory building and is adapted to store compressed air, one end of the compressed air pipeline 322 is connected with the compressed air tank 321, and the other end of the compressed air pipeline 322 is connected with the air inlet of the ventilation device 21, and the ejector 323 is arranged on the compressed air pipeline 322 and is adapted to induce the air in the compressed air tank 321 to enter the ventilation device 21. The purification ventilation device with the above structure can store a large amount of compressed air in the compressed air tank 321 arranged on the roof of the factory building, and the compressed air pipeline 322 is connected with the compressed air tank 321 at one end and is connected with the ventilation device 21 at the other end, so that the compressed air in the compressed air tank 321 can flow into the ventilation device 21, and the ejector 323 can induce the air in the exhaust chamber 1 to mix with the compressed air by using the dynamic pressure of the compressed air, so as to induce the air in the exhaust chamber 1 to enter the ventilation device 21, so that the ventilation device 21 works and the pollutants in the exhaust chamber 1 are discharged, and the dependence of the ventilation device 21 on the power supply is further reduced, so that the ventilation device 21 can still discharge radioactive pollutants to the outside when the power supply is lost, and harm to the nearby personnel is avoided.

[0081] The purification ventilation device provided by the application has the advantages that Figure 1 and Figure 2 As shown, the ventilation structure is a ventilation pipeline 12 formed at the end of the exhaust chamber 1, and the ventilation device 21 is arranged at the inlet of the ventilation pipeline 12. The purification ventilation device with the above structure can discharge the polluted air in the exhaust chamber 1 to the outside through the ventilation pipeline 12, and the ventilation device 21 is arranged at the inlet of the ventilation pipeline 12, which is beneficial to the ventilation device 21 to suck the polluted air in the exhaust chamber 1 into the ventilation pipeline 12 and discharge it to the outside.

[0082] The purification ventilation device provided by the application has the advantages that Figure 3As shown, the ventilation assembly further comprises a ventilation mechanism 22 arranged at the outlet of the ventilation duct 12, the ventilation mechanism 22 comprising a support frame 221 arranged on the inner wall at the outlet of the ventilation duct 12, a shaft 223 rotatably arranged on the support frame 221, a cover 222 and a rotating cylinder 224 arranged on the shaft 223 in a spaced manner and synchronously rotating with the shaft 223, the rotating cylinder 224 being provided with a support impeller 226, and a blade 225 arranged between the cover 222 and the rotating cylinder 224 and adapted to discharge the air in the exhaust chamber 1. The purification ventilation device with the above structure discharges the contaminated air in the exhaust chamber 1 to the outside through the ventilation mechanism 22 arranged at the ventilation duct 12, the support frame 221 arranged on the inner wall at the outlet of the ventilation duct 12 to support the shaft 223 and enable the shaft 223 to rotate on the support frame 221, the cover 222 and the rotating cylinder 224 synchronously rotating with the shaft 223, and the blade 225 arranged between the cover 222 and the rotating cylinder 224, the rotation of the blade 225 being capable of sucking out the contaminated air in the exhaust chamber 1 and discharging it to the outside, which is beneficial to discharging the contaminated air in the exhaust chamber 1 to the outside.

[0083] The purification ventilation device provided by the application has the advantages that Figure 3 As shown, the ventilation mechanism 22 further comprises a deceleration pad 227 arranged between the support frame 221 and the rotating cylinder 224 and adapted to buffer the support frame 221 when the support frame 221 approaches the rotating cylinder 224. The purification ventilation device with the above structure is capable of friction deceleration, impulse absorption and displacement limitation after the deformation of the cylinder structure in strong wind or earthquake, thereby preventing the structure from being damaged due to plastic deformation.

[0084] The purification ventilation device provided by the application has the advantages that Figure 1 and Figure 2As shown, the purification assembly further comprises a heating element 44 arranged on the box 41 to heat the iodine adsorption structure 43. The purification ventilation device with the above structure can control the required temperature and relative humidity of the iodine adsorption structure 43 in standby mode, and ensure the purification efficiency of the iodine adsorption structure 43.

[0085] Specifically in the embodiment, the filter 42 is a high-efficiency air filter, which has high filtration efficiency, small resistance and large dust holding capacity. Specifically, the high-efficiency air filter is arranged on the communication port 11 and can filter impurities and dust in the air entering the box 41 from the factory building.

[0086] The purification ventilation device provided by the application has the advantages that Figures 1 to 4 As shown, the purification assembly further comprises a heating element 44 arranged on the box 41 to heat the iodine adsorption structure 43. The purification ventilation device with the above structure can control the required temperature and relative humidity of the iodine adsorption structure 43 in standby mode, and ensure the purification efficiency of the iodine adsorption structure 43.

[0087] Specifically in the embodiment, the heating element 44 is a microwave heater, which has fast heating speed, high heating efficiency and uniform heating. Specifically, the microwave heater is arranged on the box 41 and can heat the iodine adsorption structure 43, so as to control the required temperature and relative humidity of the iodine adsorption structure 43 in standby mode and ensure the purification efficiency of the iodine adsorption structure 43. Of course, the heating element 44 can also be other heating tools. The microwave heater is a preferred scheme of the embodiment because of its fast heating speed, high heating efficiency and uniform heating, but the selection is not limited. For example, a radiation type electric heater has the same principle, and details are not described here.

[0088] The purification ventilation device provided by the application has the advantages that Figures 1 to 4As shown, the iodine adsorption structure 43 comprises two connected iodine adsorbers, and the three are arranged in a triangle. The purification ventilation device of the above structure can increase the active carbon adsorption area, reduce the airflow resistance, ensure the stability required by the anti-vibration of the purification assembly, and meet the required maintenance and replacement space of the filter and the iodine adsorption unit.

[0089] The purification ventilation device provided by the application comprises a ventilation mechanism 22, an iodine adsorption structure 43, and a filter 42. Figures 1 to 4 As shown, the purification ventilation device further comprises a protection assembly installed on the exhaust chamber 1. The protection assembly comprises at least one accommodating cavity. The protection assembly has an open state in which the accommodating cavity is in communication with the outside world so that the ventilation mechanism 22 is exposed to the outside world, and a closed state in which the accommodating cavity is isolated from the outside world so that the ventilation mechanism 22 is covered in the accommodating cavity. The purification ventilation device of the above structure can protect the ventilation mechanism 22 from damage from the outside world when the accommodating cavity is in communication with the outside world and the ventilation mechanism 22 starts to work to exhaust the contaminated air in the exhaust chamber 1 to the outside world.

[0090] The purification ventilation device provided by the application comprises a ventilation mechanism 22, an iodine adsorption structure 43, and a filter 42. Figure 1 and Figure 2 As shown, the protection assembly comprises

[0091] two cover bodies 51, two first telescopic members 52, and a first actuating member 53. The two cover bodies 51 are rotationally connected to the outlet of the ventilation duct 12, and the cover bodies 51 can cover the ventilation mechanism 22 to form the accommodating cavity. One end of each of the two first telescopic members 52 is rotationally connected to the cover body 51, and the other end is rotationally connected to the outer wall of the exhaust chamber 1. The two ends of the first telescopic member 52 move in the direction of relatively approaching or in the direction of relatively moving away to open or close the cover body 51. The first actuating member 53 is arranged in the exhaust chamber 1 and is adapted to control the movement of the two ends of the first telescopic member 52 in the direction of relatively approaching or in the direction of relatively moving away. The purification ventilation device of the above structure can avoid damage to the ventilation mechanism 22 by the cover bodies 51 rotationally connected to the outlet of the ventilation duct 12, the two first telescopic members 52 with one end rotationally connected to the cover body 51 and the other end rotationally connected to the outer wall of the exhaust chamber 1, and the first actuating member 53 arranged in the exhaust chamber 1. The two ends of the first telescopic member 52 can relatively approach to open the cover body 51, and can relatively move away to close the cover body 51. The first actuating member 53 can control the movement of the two ends of the first telescopic member 52 in the direction of relatively approaching or in the direction of relatively moving away.

[0092] The purification ventilation device provided by the application comprises a ventilation mechanism 22, an iodine adsorption structure 43, and a filter 42. Figure 4As shown, the protection assembly comprises a mounting base 54, a second telescopic piece 55, a sliding base 56, a closing cover 58 and a second actuating piece 59, the mounting base 54 is arranged on the inner wall of the ventilation duct, and first and second support pieces 541 and 542 are arranged on the mounting base 54 at intervals; the two ends of the second telescopic piece 55 are arranged on the first and second support pieces 541 and 542 respectively, and the output end of the second telescopic piece 55 is connected with the shaft 223; the sliding base 56 is arranged on the shaft 223, and the two ends of the sliding base 56 are respectively provided with buffer pieces 57; the closing cover 58 is arranged on one side of the cover body 222 and is suitable for closing the ventilation duct 12; the second actuating piece 59 is arranged in the exhaust chamber 1 and is suitable for controlling the two ends of the second telescopic piece 55 to move in the direction of relatively approaching or in the direction of relatively moving away; and the internal space at the outlet of the ventilation duct is a containing cavity. The purification ventilation device with the above structure can isolate the ventilation mechanism 22 in the ventilation duct 12 by the two ends of the second telescopic piece 55 approaching each other, so as to avoid damage to the ventilation mechanism 22 by the outside world, and the two ends of the second telescopic piece 55 can also move away from each other to expose the ventilation mechanism 22 to the outside world and discharge the contaminated air in the exhaust chamber 1 to the outside world, the sliding base 56 can ensure that the eccentric deformation amount of the shaft 223 is less than the allowable value, the closing cover 58 can block the outlet of the ventilation duct 12, so as to isolate the ventilation mechanism 22 from the outside world, thereby avoiding damage to the ventilation mechanism 22 by the outside world, and the second actuating piece 59 can control the two ends of the second telescopic piece 55 to move in the direction of relatively approaching or in the direction of relatively moving away.

[0093] Specifically in the embodiment, the first telescopic piece 52 and the second telescopic piece 55 are both hydraulic support rods, the relative speed of the hydraulic support rod is slow, the dynamic force change is not large, and the hydraulic support rod is easy to control. Specifically, the two ends of the hydraulic support rod are rotatably connected with the exhaust chamber 1 and the cover body 51 respectively, and the two ends of the hydraulic support rod can move in the direction of relatively approaching or in the direction of relatively moving away to open or close the cover body 51, or the hydraulic support rod is arranged on the mounting base 54, and the output end of the hydraulic support rod is connected with the shaft 223, and the two ends of the hydraulic support rod can move in the direction of relatively approaching or in the direction of relatively moving away to send out or retract the ventilation structure in the ventilation duct 12.

[0094] The purification ventilation device provided by the application has the advantages that Figure 1 and Figure 2As shown, the control assembly further comprises a first sensor 61, a second sensor 62 and a third sensor 63, the first sensor 61 is electrically connected with the actuator and is adapted to detect the temperature in the factory building to control the actuator to open; the second sensor 62 is electrically connected with the actuator and is adapted to detect the pressure in the factory building to control the actuator to open; and the third sensor 63 is electrically connected with the actuator and is adapted to detect the radioactivity concentration in the factory building to control the actuator to open. The purification ventilation device with the above structure can control the actuator to open by detecting the temperature, pressure and radioactivity concentration in the factory building through the first sensor 61, the second sensor 62 and the third sensor 63 which are all electrically connected with the actuator, so as to open the protection assembly, expose the ventilation mechanism 22 to the outside world and discharge the contaminated air in the factory building.

[0095] Specifically, in the embodiment, the first sensor 61 is a temperature sensor, the second sensor 62 is a pressure sensor and the third sensor 63 is a radioactivity sensor. Specifically, the first sensor 61, the second sensor 62 and the third sensor 63 are all electrically connected with the actuator and can control the actuator to open by detecting the temperature, pressure and radioactivity concentration in the factory building, so as to open the protection assembly, expose the ventilation mechanism 22 to the outside world and discharge the contaminated air in the factory building.

[0096] The purification ventilation device provided by the application has the following purification ventilation process:

[0097] Firstly, the contaminated air in the factory building flows into the box 41 through the filter 42 arranged on the communication port 11, then the iodine adsorption structure 43 arranged in the box 41 starts to absorb the harmful substances in the contaminated air, after that, the purified air flows into the exhaust chamber 1 and the ventilation mechanism 22 arranged at the outlet of the ventilation pipeline 12 starts to work, so as to form the airflow of the shaft 223 to discharge the air, finally, when the power of the ventilation mechanism 22 is not enough to discharge the air, the ventilation piece 21 arranged at the inlet of the ventilation pipeline 12 is attracted by the power provided by the photovoltaic power supply system or the compressed air system to make the air in the exhaust chamber 1 enter the ventilation pipeline 12 and be discharged to the outside. Thus, the purification ventilation process of the purification ventilation device is completed.

[0098] The purifying ventilation device provided by the application comprises an exhaust chamber 1 arranged on a roof of a factory building, a ventilation assembly arranged on a ventilation structure, and a driving assembly arranged on the roof of the factory building. A communication port 11 connects the exhaust chamber 1 and the factory building, so that pollutants in the factory building can enter the exhaust chamber 1. The ventilation structure is connected with the outside, so that the pollutants in the exhaust chamber 1 can be discharged to the outside. The ventilation piece 21 can guide the pollutants to be discharged to the outside. The photovoltaic power supply system and the compressed air system provide power for the ventilation piece 21 to discharge the pollutants to the outside. The ventilation piece 21 can still discharge radioactive pollutants to the outside when power is lost, and harm to nearby personnel is avoided.

[0099] Obviously, the above embodiments are only examples for clearly illustrating the application, and are not intended to limit the application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. All the embodiments do not need to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the application.

Claims

1. A purification and ventilation device, characterized in that, include: An exhaust chamber (1) is suitable for installation on the roof of a factory building. The exhaust chamber (1) is provided with a connecting opening (11) on one side near the roof and a ventilation structure. The connecting opening (11) is suitable for connecting with the factory building, and the ventilation structure is suitable for connecting the exhaust chamber (1) with the outside. A ventilation assembly is disposed on the ventilation structure, the ventilation assembly including a ventilation element (21) adapted to guide pollutants to be discharged to the outside; A drive assembly, adapted to be mounted on the roof of a factory building and connected to the ventilation component (21), the drive assembly including a photovoltaic power supply system and / or a compressed air system, both of which are adapted to provide power to the ventilation component (21); The ventilation structure is a ventilation duct (12) formed at the end of the exhaust chamber (1), and the ventilation component (21) is provided at the inlet of the ventilation duct (12); The ventilation assembly further includes a ventilation mechanism (22), which is disposed at the outlet of the ventilation duct (12), and the ventilation mechanism (22) includes: A support frame (221) is disposed on the inner wall at the outlet of the ventilation duct (12); A shaft (223) is rotatably mounted on the support frame (221); A cover (222) and a rotating cylinder (224); the cover (222) and the rotating cylinder (224) are spaced apart on the shaft (223) and rotate synchronously with the shaft (223); a supporting impeller (226) is provided on the rotating cylinder (224); Blade (225), the blade (225) being disposed between the cover (222) and the rotating cylinder (224), is adapted to exhaust air from the exhaust chamber (1); It also includes a protective component installed on the exhaust chamber (1), the protective component including at least one receiving cavity, the protective component having an open state in which the receiving cavity communicates with the outside so that the ventilation mechanism (22) is exposed to the outside, and a closed state in which the receiving cavity is isolated from the outside so that the ventilation mechanism (22) is covered in the receiving cavity; The protective components include: At least two covers (51) are rotatably connected to the outlet of the ventilation duct (12), and the covers (51) can enclose the ventilation mechanism (22) to form the receiving cavity; At least two first telescopic members (52), one end of which is rotatably connected to the cover (51) and the other end is rotatably connected to the outer wall of the exhaust chamber (1). The two ends of the first telescopic members (52) move in a relatively close direction or in a relatively far direction to open or close the cover (51). The first actuator (53) is disposed in the exhaust chamber (1) and is adapted to control the two ends of the first telescopic member (52) to move in a relatively close direction or in a relatively far direction. The protective components include: Mounting base (54), the mounting base (54) is disposed on the inner wall of the ventilation duct, and the mounting base (54) is provided with a first support member (541) and a second support member (542) at intervals; The second telescopic member (55) has two ends respectively disposed on the first support member (541) and the second support member (542), and the output end of the second telescopic member (55) is connected to the shaft (223). A slide (56) is mounted on the shaft (223), and buffer members (57) are respectively provided at both ends of the slide (56); A sealing cover (58) is disposed on one side of the cover body (222) and is adapted to close the ventilation duct (12); The second actuator (59) is disposed in the exhaust chamber (1) and is adapted to control the two ends of the second telescopic member (55) to move in a relatively close direction or in a relatively far direction. The internal space at the outlet of the ventilation duct is the receiving cavity.

2. The purification and ventilation device according to claim 1, characterized in that, The photovoltaic power supply system includes: A photovoltaic panel (311), said photovoltaic panel (311) is suitable for installation on the roof of a factory building for converting solar energy into electrical energy; A storage battery (312), which is suitable for installation on the roof of a factory building, for storing electrical energy output from the photovoltaic panel; An inverter (313) is installed on the exhaust chamber (1) to convert the DC power from the battery side into AC power. The photovoltaic panel (311), the battery (312), the inverter (313) and the ventilation component (21) are electrically connected.

3. The purification and ventilation device according to claim 1, characterized in that, The compressed air system includes: Compressed air storage tank (321), said compressed air storage tank (321) is suitable for installation on the roof of a factory building and is suitable for storing compressed air; Compressed air pipeline (322), one end of which is connected to the compressed air storage tank (321), and the other end of which is connected to the air inlet of the ventilation component (21); An injector (323) is disposed on the compressed air line (322) and is adapted to draw air from the exhaust chamber (1) into the ventilation component (21).

4. The purification and ventilation device according to any one of claims 1-3, characterized in that, The ventilation component (21) is a bladeless fan.

5. The purification and ventilation device according to claim 4, characterized in that, The ventilation mechanism (22) further includes a deceleration pad (227), which is disposed between the support frame (221) and the rotating cylinder (224) and is adapted to buffer the support frame (221) when the support frame (221) approaches the rotating cylinder (224).

6. The purification and ventilation device according to any one of claims 1-3, characterized in that, It also includes a purification component disposed between the exhaust chamber (1) and the connecting port (11); the purification component includes: A housing (41) is disposed on the communication port (11), and the communication port (11) is connected to the interior of the housing (41); A filter element (42) is disposed on the communication port (11) and the filter element (42) is adapted to filter impurities in the air; Iodine adsorption structure (43) is provided at intervals with the filter element (42) and is provided on the communication port (11). The iodine adsorption structure (43) is suitable for absorbing harmful substances in the air.

7. The purification and ventilation device according to claim 6, characterized in that, The purification assembly also includes a heating element (44), which is disposed on the housing (41) to heat the iodine adsorption structure (43).

8. The purification and ventilation device according to claim 7, characterized in that, The iodine adsorption structure (43) includes two connected iodine adsorbers, wherein the two iodine adsorbers and the filter element (42) are arranged in a triangle.

9. The purification and ventilation device according to any one of claims 1-3, characterized in that, It also includes a control component, which includes: A first sensor (61), electrically connected to the actuator (53), is adapted to detect the temperature inside the plant to control the actuator (53) to open; and / or, A second sensor (62), electrically connected to the actuator (53), is adapted to detect pressure within the plant to control the actuator (53) to open; and / or, The third sensor (63), electrically connected to the actuator (53), is adapted to detect the radioactivity concentration in the plant to control the actuator (53) to open.

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