CN217057809U - Exhaust and purification integrated device - Google Patents
Exhaust and purification integrated device Download PDFInfo
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- CN217057809U CN217057809U CN202123143643.6U CN202123143643U CN217057809U CN 217057809 U CN217057809 U CN 217057809U CN 202123143643 U CN202123143643 U CN 202123143643U CN 217057809 U CN217057809 U CN 217057809U
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Abstract
The utility model belongs to the technical field of nuclear engineering purification technique of airing exhaust, concretely relates to purification integrated device airs exhaust, frame and the wallboard that sets up above that constitute the box structure, box structure one side is provided with the electronic airtight valve of air inlet, box structure opposite side is provided with electronic airtight valve and controller and the liquid crystal display of airing exhaust, arrange the primary filter along the air flow direction in proper order in the box structure, chemical filter, high efficiency filter, the fan, the primary filter, chemical filter, high efficiency filter, the fan all is provided with the access door, the primary filter, chemical filter, high efficiency filter all is provided with the pressure differential display. The defects of single processing capacity, small processing air quantity, large occupied area, complex installation, long construction period, high noise and the like of the traditional equipment are overcome, and the universal flexibility of the engineering is met while the engineering cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of nuclear engineering purifies that airs exhaust, concretely relates to purification integrated device airs exhaust for it contains HF, HCL, H to purify 2 SO 4 、NO X 、SO 2 、H 2 S、Cl 2 Chemical hazards and radioactive aerosol gases.
Background
The nuclear engineering ventilation and air purification system is used for protecting the environment and operators from the harm of radioactive micro-dust, radioactive aerosol, radioactive gas and other chemical harmful substances such as acid, alkali, ammonia, nitrogen oxide and the like contained in the air, and is an important component in the production flow of various factory buildings in the nuclear industry.
The harmful substances in the exhaust air of factory buildings of nuclear engineering production, overhaul, cleaning, assay and the like are mainly radioactive aerosol and a small amount of hydrogen fluoride gas, the exhaust air purification system generally adopts a two-stage series treatment mode, the first stage is a dry-method acid waste gas purifier, the second stage is a high-efficiency air purifier containing a prefilter, and the maximum treatment air quantity is 20000m 3 H is the ratio of the total weight of the catalyst to the total weight of the catalyst. Wherein the dry-method acid waste gas purifier is made of glass fiber reinforced plastics, the size of 2 ten thousand cubic air volume equipment is about 3600x2500x2000, the weight is 2500kg, and the filler is pumpedThe drawer type is transversely arranged, the exhaust air cannot fully contact with the filler, and the purification efficiency is lower; the high-efficiency air purifier with the prefilter is made of stainless steel, the size of 2 ten thousand cubic air volume equipment is about 4200x915x2100, the weight is 3000kg, the manufacturing standard is nuclear grade, and the equipment is heavy.
The existing dry method acid waste gas purifier has the advantages of lower equipment manufacturing standard, low filtering efficiency, large air leakage rate and complicated filter material replacement operation, and is more suitable for common industrial plants; the high-efficiency air purifier with the prefilter is heavy in equipment, large in occupied area and more suitable for places with higher requirements on safety level, earthquake resistance level and quality assurance level, such as nuclear power plants, spent fuel treatment plants and the like.
The existing exhaust purification equipment is generally arranged in a special exhaust fan room, a dry-method acidic waste gas purifier, a high-efficiency air purifier with a prefilter and an exhaust fan are sequentially arranged along the airflow direction in a serial independent arrangement mode. Spaces for installing pipelines and valves and overhauling personnel need to be reserved among all levels of equipment, and the occupied area is large; the pressure head of the fan is high, and the fan is directly arranged indoors and has large noise.
The existing purifying equipment is limited by installation site, weight and personnel overhaul space, and the maximum treatment air quantity of the equipment treatment is 20000m 3 And h, the requirement of a large-air-volume exhaust system cannot be met.
In a word, although the treatment effect of the existing purification treatment equipment can meet the requirements of national emission standards, the existing purification treatment equipment is not special equipment developed aiming at the own characteristics of nuclear engineering, has a plurality of defects and can not meet the matching requirements of engineering.
Disclosure of Invention
An object of the utility model is to provide an exhaust and purify integrated device, to nuclear engineering self characteristics, the design is nimble, and it is big to handle the amount of wind, simple to operate, and area is few, and the noise is low, operation, maintenance are more simple and convenient, and purification efficiency is higher.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
the utility model provides an exhaust purification integrated device, frame and the wallboard that sets up above that constitutes the box structure, box structure one side is provided with the electronic airtight valve of air inlet, box structure opposite side is provided with electronic airtight valve and controller and the liquid crystal display of airing exhaust, arrange along the air current direction in the box structure in proper order and just imitate filter, chemical filter, high efficiency filter, the fan, just imitate filter, chemical filter, high efficiency filter, the fan all is provided with the access door, just imitate filter, chemical filter, high efficiency filter all is provided with the pressure differential display.
The primary filter is flat plate type and assembled by a modularized vertical structure.
The high-efficiency filter adopts a dense pleat type and is assembled by a modularized vertical structure.
The box structure adopts 304 or 316 stainless steel materials.
The wall plate adopts a double-layer stainless steel plate with a sound insulation interlayer and a thickness of 1.2 mm.
And (4) performing anticorrosive spraying on the interior of the wallboard.
The bottom of the wallboard is provided with a grooved steel foundation.
The frame is assembled by adopting a modularized V-shaped structure.
The primary filter is made of polypropylene.
The high-efficiency filter is made of polypropylene.
The utility model discloses the beneficial effect who gains does:
the utility model provides an exhaust and purification integrated device. The product integrates the chemical filter, the primary filter, the high-efficiency filter and the fan which are arranged dispersedly originally, the equipment can be matched with filters with different functions and different quantities according to engineering requirements, the defects of single treatment capacity, small treatment air quantity, large occupied area, complex installation, long construction period, high noise and the like of the traditional equipment are overcome, and the universal flexibility of engineering is met while the engineering cost is reduced.
Drawings
FIG. 1 is a structural view of an integrated exhaust and purification device;
in the figure: 1. a primary filter; 2. chemical filters (one or more configured as desired); 3. a high efficiency filter; 4. a fan; 5. an access door; 6. a frame; 7. wall plates; 8. an air inlet electric closed valve; 9. an air exhaust electric closed valve; 10. a differential pressure display; 11. controller and liquid crystal display.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
An exhaust purification integrated device comprises a primary filter 1, a chemical filter 2, a high-efficiency filter 3, a fan 4, an access door 5, a frame 6, a wall plate 7, an air inlet electric sealed valve 8, an exhaust electric sealed valve 9 and a differential pressure display 10, controller and liquid crystal display 11, frame 6 and the wallboard 7 of setting above that constitute the box structure, box structure one side is provided with the electronic airtight valve of air inlet 8, box structure opposite side is provided with electronic airtight valve 9 and controller and liquid crystal display 11 of airing exhaust, arrange primary filter 1 in proper order along the air current direction in the box structure, chemical filter 2, high efficiency filter 3, fan 4, primary filter 1, chemical filter 2, high efficiency filter 3, fan 4 all is provided with access door 5, primary filter 1, chemical filter 2, high efficiency filter 3 all is provided with pressure differential display 10.
The equipment adopts a closed combined box structure, a primary air filter section, a chemical filter section, a high-efficiency air filter section and a fan section are sequentially arranged along the airflow direction, an inlet and an outlet of the unit are provided with electric closed valves, a bottom grooved steel foundation is arranged at the bottom, and each stage of filter material section is provided with a local differential pressure display.
The unit can process gas containing different chemical harmful substances and radioactive aerosol through the combination of filtering units with different functions; various rated air volume specifications can be realized through the combination of filtering units with different areas and different numbers.
The chemical filter material adopts impregnated activated carbon and a modularized V-shaped structure, so that the filling amount of the filler is less, the wind resistance is smaller, the air detention time is sufficient, the contact area with the filler is large, and the purification efficiency is higher; the primary air filter is generally flat plate type and assembled by a modular vertical structure, and meets the requirements of the national standard GB/T14295 air filter; the efficient air filter is generally assembled by adopting a dense pleat type and a modularized vertical structure, and meets the requirements of national standard GB/T17939 nuclear-grade efficient air filter and GB/T14295 air filter. The whole unit adopts a modular design, and all filters can be independently replaced.
The box body is made of 304 or 316 stainless steel and is provided with an overhaul section and a closed overhaul door or a filter material unloading door, the design pressure bearing capacity of the box body is +/-4000 Pa, and the air leakage rate under the design pressure is less than 1%.
The machine set PLC control system and the liquid crystal display can display the front and back pressure difference of each filter material device, have fan overload, overheat, short circuit and open-phase protection, can realize manual and automatic control on the fan, display the running state of the machine set and give a fault alarm, and can also remotely transmit signals to the centralized control system.
Referring to fig. 1, an embodiment of the nuclear engineering exhaust purification integrated device is provided, which adopts a sealed box structure and comprises a frame 6, a wall plate 7, an access door 5, a primary filter 1, a chemical filter 2 (one or more types are configured according to requirements), a high-efficiency filter 3, a fan 4, an air inlet electric closed valve 8, an exhaust electric closed valve 9, a pressure difference display 10, a controller and a liquid crystal display screen 11.
The frame adopts stainless steel, and the wallboard adopts the double-deck 1.2mm stainless steel board of taking the interbedded that gives sound insulation, inside anticorrosive spraying, bottom trough of belt steel foundries. The box body is attractive and firm as a whole, the designed pressure bearing capacity is +/-4000 Pa, and the air leakage rate under the designed pressure is less than 1%.
The chemical filter material is assembled by adopting impregnated activated carbon (different adsorbing materials are selected according to gas properties) and a stainless steel frame in a modularized V-shaped structure, so that HF gas can be effectively purified; the primary air filter is generally a flat plate type, is made of polypropylene (different materials are selected according to gas properties), is assembled by adopting a vertical structure, has the filtering grades of G3 and G4, has the filtering efficiency of 80-90 percent (a weighing method), has the primary resistance generally less than or equal to 50Pa, and meets the requirements of the national standard GB/T14295 air filter; the high-efficiency air filter is generally in a close-pleated type, is made of polypropylene (different materials are selected according to gas properties), is assembled by adopting a vertical structure, has the filtering grades of H12, H13 and H14, has the filtering efficiency of more than or equal to 99.97 percent (sodium flame method), has the initial resistance of less than or equal to 325Pa generally, and meets the requirements of national standard GB/T17939 nuclear-grade high-efficiency air filter and GB/T14295 air filter. The filter is assembled in a modularized way, so that radioactive aerosol can be effectively filtered; each filter can be independently replaced, and each filter is independently provided with a reliable compression structure, so that the filters can be accurately positioned and strictly sealed in the box body.
Each fillter section and fan section all set up access door and maintenance section, make things convenient for personnel to overhaul and change the filter, and access door material and colour are the same with the out-wainscot.
The machine set PLC control system and the liquid crystal display can display the front and back pressure difference of each filter material device, have fan overload, overheat, short circuit and open-phase protection, can realize manual and automatic control on the fan, display the running state of the machine set and give a fault alarm, and can also remotely transmit signals to the centralized control system.
The utility model discloses a nuclear engineering purifies integrated device that airs exhaust, the device adopt the seal box structure, including frame, wallboard, access door, first effect filter, chemical filter, high efficiency filter, fan, the electronic airtight valve of air inlet, the electronic airtight valve of airing exhaust, pressure differential display and controller and liquid crystal display.
The frame adopts stainless steel, and the wallboard adopts the double-deck 1.2mm thick corrosion resistant plate who takes the interbedded that gives sound insulation, inside anticorrosive spraying, bottom trough of belt steel basis. The box body is attractive and firm as a whole, the designed pressure bearing capacity is +/-4000 Pa, and the air leakage rate under the designed pressure is less than 1%.
The filter adopts a modular design and can be integrally replaced; each filter is independently provided with a reliable pressing structure, so that the filters can be accurately positioned and strictly sealed in the box body.
The machine set PLC control system and the liquid crystal display can display the front and back pressure difference of each filter material device, have fan overload, overheat, short circuit and open-phase protection, can realize manual and automatic control on the fan, display the running state of the machine set and give a fault alarm, and can also remotely transmit signals to the centralized control system.
Claims (10)
1. The utility model provides an exhaust and purify integrated device which characterized in that: frame and the wallboard that sets up above that constitute the box structure, box structure one side is provided with the electronic airtight valve of air inlet, and box structure opposite side is provided with electronic airtight valve and controller and the liquid crystal display of airing exhaust, arranges primary filter, chemical filter, high efficiency filter, fan along the air current direction in proper order in the box structure, and primary filter, chemical filter, high efficiency filter, fan all are provided with the access door, and primary filter, chemical filter, high efficiency filter all are provided with the pressure differential display.
2. An exhaust purification integrated device according to claim 1, characterized in that: the primary filter is flat plate type and assembled by a modularized vertical structure.
3. An integrated exhaust and purification device according to claim 1, wherein: the high efficiency filter adopts a dense pleat type and is assembled by a modularized vertical structure.
4. An integrated exhaust and purification device according to claim 1, wherein: the box structure adopts 304 or 316 stainless steel materials.
5. An exhaust purification integrated device according to claim 1, characterized in that: the wall plate adopts a double-layer stainless steel plate with a sound insulation interlayer and a thickness of 1.2 mm.
6. An exhaust purification integrated device according to claim 1, characterized in that: and (4) anticorrosive spraying of the interior of the wallboard.
7. An integrated exhaust and purification device according to claim 1, wherein: the bottom of the wallboard is provided with a grooved steel foundation.
8. An integrated exhaust and purification device according to claim 1, wherein: the frame is assembled by adopting a modularized V-shaped structure.
9. An exhaust purification integrated device according to claim 1, characterized in that: the primary filter is made of polypropylene.
10. An exhaust purification integrated device according to claim 1, characterized in that: the high-efficiency filter is made of polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123143643.6U CN217057809U (en) | 2021-12-14 | 2021-12-14 | Exhaust and purification integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123143643.6U CN217057809U (en) | 2021-12-14 | 2021-12-14 | Exhaust and purification integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217057809U true CN217057809U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123143643.6U Active CN217057809U (en) | 2021-12-14 | 2021-12-14 | Exhaust and purification integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217057809U (en) |
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2021
- 2021-12-14 CN CN202123143643.6U patent/CN217057809U/en active Active
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