CN114534392A - Long-life vapour and liquid separator suitable for radioactive waste gas treatment - Google Patents
Long-life vapour and liquid separator suitable for radioactive waste gas treatment Download PDFInfo
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- CN114534392A CN114534392A CN202011355443.4A CN202011355443A CN114534392A CN 114534392 A CN114534392 A CN 114534392A CN 202011355443 A CN202011355443 A CN 202011355443A CN 114534392 A CN114534392 A CN 114534392A
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- filter
- gas
- liquid separator
- gas treatment
- radioactive waste
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to the technical field of gas-liquid separation of radioactive waste gas treatment, and particularly relates to a long-life gas-liquid separator suitable for radioactive waste gas treatment. Adopt multilayer orifice plate superimposed mode, from the top down be in proper order last filter, middle I type filter, middle II type filter, middle I type filter, lower filter, the wrong board of upper and lower adjacent filter is opened has the filtration pore, sets up the precipitation groove on every layer of filter. The precipitation tank is arranged in a mirror image mode. The gas-liquid separator prolongs the service life of the equipment on the premise of ensuring the separation efficiency, and can realize maintenance-free operation in the whole life cycle of the equipment.
Description
Technical Field
The invention belongs to the technical field of gas-liquid separation of radioactive waste gas treatment, and particularly relates to a long-life gas-liquid separator suitable for radioactive waste gas treatment.
Background
The radioactive working condition is usually characterized by high radioactive strength, strong corrosion resistance to equipment materials and the like, so that equipment with stable irradiation resistance and good corrosion resistance is selected as much as possible in the aspect of equipment model selection. The selection of the gas-liquid separation equipment is always a difficult problem for treating radioactive waste gas.
At present, the mainstream gas-liquid separation methods include gravity settling method, silk screen separation method and ultrafiltration separation method.
The gravity settling method usually reduces the flow velocity of gas by arranging an expansion section or a large-sized equipment cavity, so that the retention time of the gas in the cavity is increased, and gas-liquid separation is realized. The gravity settling method is a relatively common gas-liquid separation method, but the gravity settling gas-liquid separation device is not suitable for gas-liquid separation of certain specific radioactive waste gas treatment due to the nuclear critical problem.
The silk screen separation method has higher separation efficiency, but the silk screen separation method is suitable for under the condition that the operating medium is not very big to the material corrosivity, the silk screen is as the consumptive material simultaneously, need regularly inspect or change just can guarantee its filtration efficiency, but the radioactivity operating mode is mostly the nitric acid system, the corrosion of nitric acid to the material is comparatively serious under certain temperature and concentration, simultaneously in view of the strong radioactivity under some specific radioactivity operating modes, the frequency of overhauing should be reduced as far as possible, reduce the production of radioactive waste, improve the life of product, therefore the silk screen separation mode is not applicable to the gas-liquid separation of exhaust-gas treatment under some specific radioactivity operating modes yet.
The ultrafiltration separation method is a mode of utilizing the microporous structure of a semipermeable membrane, using certain external pressure as a driving force and realizing selective permeability of substances, and has the advantages of simple operation, high separation efficiency and the like, but the ultrafiltration semipermeable membrane is a consumable, and needs to be completely replaced along with the service life of the semipermeable membrane, and a large amount of radioactive waste is generated to be treated when the ultrafiltration membrane is applied to a radioactive working condition, and meanwhile, the ultrafiltration still needs to introduce cleaning agents and other chemical reagents in actual operation, and the reagents can possibly influence the original treatment process and simultaneously generate radioactive waste liquid.
In summary, there is a need to develop a gas-liquid separator suitable for radioactive working conditions and having the characteristics of small size, high filtration efficiency, strong corrosion resistance, long service life, etc.
Disclosure of Invention
The invention aims to provide a long-service-life gas-liquid separator suitable for radioactive waste gas treatment.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a long-life vapour and liquid separator suitable for radioactive waste gas treatment adopts the superimposed mode of multilayer orifice plate, from the top down is filter, middle I type filter, middle II type filter, middle I type filter, lower filter in proper order, and the wrong board of upper and lower adjacent filter is opened there is the filtration pore, sets up the precipitation groove on every layer of filter.
The precipitation tank is arranged in a mirror image mode.
The beneficial effects obtained by the invention are as follows:
the gas-liquid separator is designed for separating gas and liquid drops in waste gas treatment under the radioactive working condition. The liquid drop is collected on the filter plate through the baffling of board by board to this kind of separator, returns in the post through the down flow hole, through adopting brand-new structural style, has realized advantages such as the size is small and exquisite, filtration efficiency is high, long service life. The gas-liquid separator prolongs the service life of the equipment on the premise of ensuring the separation efficiency, and can realize maintenance-free operation in the whole life cycle of the equipment.
The gas-liquid separator is designed for meeting the requirement of separating gas and liquid drops under the radioactive working condition. The liquid drop is collected on the filter plate through the baffling of board by board to this kind of separator, returns in the post through the down flow hole, through adopting brand-new structural style, has realized advantages such as the size is small and exquisite, filtration efficiency is high, corrosion resistance is strong, long service life. The gas-liquid separator enhances the corrosion resistance of the equipment, prolongs the service life of the equipment and can realize the maintenance-free performance of the equipment in the whole life cycle on the premise of meeting the separation requirement.
Drawings
FIG. 1 is a schematic view of a gas-liquid separator;
FIG. 2 is a schematic view of a filter plate;
FIG. 3 is a schematic view of the downcomer on the filter plate;
in the figure: 1. an upper filter plate; 2. a middle I-shaped filter plate; 3. a middle II type filter plate; 4. a lower filter plate; 5. a precipitation tank; 6. and (4) filtering holes.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
The long-life gas-liquid separator suitable for radioactive waste gas treatment adopts a mode of overlapping a plurality of layers of pore plates, and sequentially comprises an upper filter plate 1, a middle I-type filter plate 2, a middle II-type filter plate 3, a middle I-type filter plate 2 and a lower filter plate 4 from top to bottom, wherein staggered plates of upper and lower adjacent filter plates are provided with filter holes 6, and each layer of filter plate is provided with a precipitation tank 5. The downcomer tank 5 takes a mirror image arrangement.
This vapour and liquid separator adopts the superimposed mode of multilayer orifice plate, and two adjacent filter board mistake board trompils from top to bottom utilize the difference in height on the board between the hole to realize the baffling of gaseous phase, set up the precipitation groove on every layer board to in the liquid drop that will catch flows back to the post, realize the gas-liquid separation in the gaseous phase through multistage baffling, thereby realize the gaseous-liquid two-phase separation in the tail gas.
The gas-liquid separator mainly comprises the following parts: go up filter 1, middle I type filter 2, middle II type filter 3, lower filter 4. The lower filter plate 4 needs to be supported and fixed in the device. The upper filter plate 1, the middle I-shaped filter plate 2 and the middle II-shaped filter plate 3 are provided with installation limiting devices. Go up filter 1, middle I type filter 2, middle II type filter 3 through the spacing on two adjacent boards, utilize equipment dead weight to fix. The openings in adjacent filter plates are staggered. The diameter and the number of the openings of the filter plate of the gas-liquid separator are determined according to the parameter ranges of the flow and the pressure of the system, the separator has certain adaptability, and the same separator can be used when the flow of the working gas in the system is changed within a certain range.
All set up the precipitation groove on every layer of filter to in the liquid drop that will catch flows back to the post, because the precipitation groove takes the mirror image setting, consequently, do not have the gaseous carrier band liquid drop in earlier stage of using and directly bypasses to tail gas system from the precipitation groove, when having the liquid drop to return the post from the precipitation groove along with gas-liquid separation gradually tends to the back of balancing, then form the liquid film easily in the position of precipitation hole, then can not have gaseous through the precipitation hole, consequently, the normal operating of system can not be influenced in the setting of precipitation groove.
The gas-liquid separator can select suitable corrosion-resistant materials according to different working media. The gas-liquid separator can achieve the same service life as the main body of the device. The gas-liquid separator does not need to introduce other media, and does not generate additional waste gas and waste liquid.
The gas-liquid separator can be applied to separation of carrier liquid drops in a gas phase and a gas phase under a radioactive working condition. The actual working condition requirements can be met by adjusting the number of the openings on the filter plate and the height of the holes protruding out of the filter plate according to different parameter ranges of the flow and the pressure of the system. Meanwhile, the appropriate corrosion-resistant material can be selected according to the corrosion characteristics of the working medium, so that the service life of the gas-liquid separator is ensured.
The gas-liquid separator has the advantages of small size, high filtering efficiency, strong corrosion resistance, long service life and the like, and can prolong the service life of the equipment and realize the maintenance-free performance in the whole life cycle of the equipment on the premise of meeting the separation requirement.
The gas-liquid separator under the radioactive working condition is formed by mutually overlapping an upper filter plate, a middle I-shaped filter plate, a middle II-shaped filter plate and a lower filter plate. The gas-liquid separator can realize the separation of gas phase and gas phase carrier liquid drops in the waste gas treatment under the radioactive working condition, improves the separation efficiency of the liquid drops, and meets the requirements of the subsequent procedures on the content of the liquid drops in the gas; the gas-liquid separator has the advantages of small size, strong corrosion resistance, long service life and the like, and can realize maintenance-free operation in the whole life cycle of equipment on the premise of meeting the separation requirement.
Claims (2)
1. The utility model provides a long-life vapour and liquid separator suitable for radioactive waste gas treatment which characterized in that: adopt multilayer orifice plate superimposed mode, from the top down be in proper order last filter, middle I type filter, middle II type filter, middle I type filter, lower filter, the wrong board of upper and lower adjacent filter is opened has the filtration pore, sets up the precipitation groove on every layer of filter.
2. The long life gas-liquid separator suitable for radioactive spent gas treatment of claim 1, wherein: the precipitation tank is arranged in a mirror image mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011355443.4A CN114534392A (en) | 2020-11-27 | 2020-11-27 | Long-life vapour and liquid separator suitable for radioactive waste gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011355443.4A CN114534392A (en) | 2020-11-27 | 2020-11-27 | Long-life vapour and liquid separator suitable for radioactive waste gas treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114534392A true CN114534392A (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011355443.4A Pending CN114534392A (en) | 2020-11-27 | 2020-11-27 | Long-life vapour and liquid separator suitable for radioactive waste gas treatment |
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| CN (1) | CN114534392A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202921104U (en) * | 2012-11-21 | 2013-05-08 | 河南广德化工科技有限公司 | Gas-liquid separator |
| CN203935727U (en) * | 2014-03-25 | 2014-11-12 | 北京华创朗润环境科技有限公司 | A kind of pneumatic filter |
| CN107596824A (en) * | 2017-11-05 | 2018-01-19 | 安徽万山红环保科技有限公司 | A kind of dry-wet filter |
| CN207599834U (en) * | 2017-12-11 | 2018-07-10 | 重庆净淇环保工程有限公司 | A kind of novel environment friendly smoke extractor |
| CN210728970U (en) * | 2019-09-06 | 2020-06-12 | 成都国化环保科技有限公司 | Flue gas tar filter |
-
2020
- 2020-11-27 CN CN202011355443.4A patent/CN114534392A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202921104U (en) * | 2012-11-21 | 2013-05-08 | 河南广德化工科技有限公司 | Gas-liquid separator |
| CN203935727U (en) * | 2014-03-25 | 2014-11-12 | 北京华创朗润环境科技有限公司 | A kind of pneumatic filter |
| CN107596824A (en) * | 2017-11-05 | 2018-01-19 | 安徽万山红环保科技有限公司 | A kind of dry-wet filter |
| CN207599834U (en) * | 2017-12-11 | 2018-07-10 | 重庆净淇环保工程有限公司 | A kind of novel environment friendly smoke extractor |
| CN210728970U (en) * | 2019-09-06 | 2020-06-12 | 成都国化环保科技有限公司 | Flue gas tar filter |
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