CN114367167A - Nuclear power station waste gas treatment system and treatment method thereof - Google Patents
Nuclear power station waste gas treatment system and treatment method thereof Download PDFInfo
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- CN114367167A CN114367167A CN202210102304.3A CN202210102304A CN114367167A CN 114367167 A CN114367167 A CN 114367167A CN 202210102304 A CN202210102304 A CN 202210102304A CN 114367167 A CN114367167 A CN 114367167A
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- 239000002912 waste gas Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 57
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000007789 gas Substances 0.000 claims abstract description 33
- 239000011094 fiberboard Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 47
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000010908 plant waste Substances 0.000 claims 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 18
- 238000009434 installation Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 description 10
- 230000002285 radioactive effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000000941 radioactive substance Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40084—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by exchanging used adsorbents with fresh adsorbents
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a nuclear power station waste gas treatment system and a treatment method thereof, and belongs to the technical field of waste gas treatment. The utility model provides a nuclear power station exhaust-gas treatment system, inserts pipe and first casing including giving vent to anger, admit air, first casing inserts the pipe with giving vent to anger and is linked together, still includes: the sealing frame is connected to the inner wall of the air outlet access pipe, and an elastic linkage assembly is arranged inside the sealing frame; the replacing mechanism is arranged in the first shell, the driving assembly is arranged on the inner wall of the first shell, the output end of the driving assembly is connected with a loading frame, and an activated carbon fiber board is arranged in the loading frame; the second shell is arranged on the outer wall of the air inlet access pipe and communicated with the air inlet access pipe, and a closing assembly is arranged in the second shell; the invention can realize automatic dismantling of the old activated carbon plate in the waste gas treatment system, is convenient to replace, reduces personnel contact, ensures personnel safety, has good sealing performance during installation and can avoid leakage.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a nuclear power station waste gas treatment system and a treatment method thereof.
Background
The waste gas treatment system for removing radioactive gas is generally used in the fields of decommissioning of nuclear facilities of a nuclear power plant, radioactive decontamination operation, nuclear equipment maintenance, waste sorting and the like. Ensure clean environment and prevent personnel from being harmed by internal radiation, and usually, radioactive gas or radioactive aerosol is mixed in the air during the operation and maintenance of a nuclear power plant or other nuclear facilities, thereby generating airborne radioactive pollutants. The pollutants mainly comprise gaseous radioactive substances and radioactive substances which can be evaporated, volatilized or carried into the air, and the air-borne radioactive pollutants are the main reasons for environmental pollution and irradiation in workers. In order to effectively control the harm of airborne radioactive pollutants, ensure that workers are always in a clean environment and ensure that the emission of purified waste gas reaches the control limit value specified by radiation protection, special protection measures need to be taken on the operation and maintenance operation site.
When adsorbing radioactive contaminated waste gas, the nuclear power station often uses the active carbon to adsorb, because the active carbon adsorption board has the saturated condition when adsorbing, if not change in time can reduce adsorption efficiency for the waste gas that has the radiation can't obtain abundant processing, thereby makes the exhaust-gas treatment effect decline, and the polluted environment even causes the damage of environment and personnel.
Through retrieval, a patent with the publication number of CN208332486U discloses an air purification device for emergency treatment of radioactive gas in a nuclear power station, which comprises a machine body shell, an air outlet, an automatic radiation monitoring alarm, an activated carbon fiber adsorber, an electric control device, a high-efficiency filter, an air inlet and an optional ladder wheel, wherein the air outlet is arranged on the upper side of the machine body shell, the automatic radiation monitoring alarm is arranged on the right side of the air outlet, the activated carbon fiber adsorber is arranged under the air outlet, the electric control device is arranged on the lower side of the activated carbon fiber adsorber, the electric control device is electrically connected with the automatic radiation monitoring alarm, the high-efficiency filter is arranged on the right side of the electric control device and is connected with the air inlet, and the optional ladder wheel is arranged at the bottom of the machine body shell; the device is when using, is not convenient for to the change of active carbon, and manual change can make personnel and the active carbon who changes the absorption that gets off have a large amount of radiation have the contact of longer time, causes the damage to the human body easily, and the leakproofness of active carbon and air vent also very difficult guarantor when changing the active carbon very easily produces radiation waste gas and reveals, therefore the device still has the weak point.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, activated carbon is inconvenient to replace, manual replacement causes personnel to be in contact with replaced activated carbon which adsorbs a large amount of radioactive substances for a long time, so that the personnel is easy to damage a human body, the tightness between the activated carbon and an air duct is extremely difficult to guarantee during replacement of the activated carbon, and radioactive waste gas leakage is extremely easy to generate, and the waste gas treatment system for the nuclear power station is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a nuclear power station exhaust-gas treatment system, inserts the pipe and connects in the first casing of the access pipe outer wall of giving vent to anger including giving vent to anger and insert the pipe, with giving vent to anger the air admission that the access pipe is linked together, first casing with give vent to anger insert the pipe and be linked together, still include:
the sealing frame is connected to the inner wall of the air outlet access pipe, and an elastic linkage assembly is arranged inside the sealing frame;
the replacing mechanism is arranged inside the first shell and comprises a driving assembly and a material returning assembly, the driving assembly is arranged on the inner wall of the first shell, the material returning assembly is arranged at the bottom of the first shell and matched with the driving assembly, the output end of the driving assembly is connected with a loading frame, an activated carbon fiber plate is arranged inside the loading frame, and the loading frame is matched with the elastic linkage assembly;
the second shell is arranged on the outer wall of the air inlet access pipe and communicated with the air inlet access pipe, and a closing assembly is arranged inside the second shell and matched with the sealing frame and the elastic linkage assembly.
Preferably, drive assembly includes motor, lead screw and first walking frame, the lead screw rotates to be connected in first shells inner wall, the motor is installed in first shells lateral wall, the motor output passes first shells lateral wall and is connected with the lead screw, first walking frame connects in the lead screw outer wall, first walking frame is provided with the screw thread and cooperatees with the lead screw, first walking frame inner wall rotates and is connected with four groups head rod, four groups the one end that first walking frame was kept away from to the head rod all rotates and connects in loading frame top, loading frame inner wall is equipped with elastic buckle and is used for fixed activated carbon fiber board.
Preferably, first slide rail and second slide rail have all been seted up to first casing both sides inner wall, and are two sets of spacing slot has all been seted up near the one end of seting up sealing frame to the second slide rail, first walking frame outer wall rotates and is connected with four first gyro wheels of group, it all rotates and is connected with the second gyro wheel to load frame both sides lateral wall, four groups first gyro wheel and two sets of second gyro wheels roll respectively in first slide rail and second slide rail inner wall, the second gyro wheel cooperatees with spacing slot.
Preferably, one side that first walking frame is close to the motor is connected with the baffle, the dress board mouth has all been seted up to first casing and baffle outer wall, the dress board mouth all cooperates and installs the radiation protection apron, the baffle cooperatees with first shells inner wall, logical groove has all been seted up to baffle and loading frame bottom, sealed frame top is connected with the lug, it cooperatees with the lug to lead to the groove.
Preferably, the material returning box is installed at the bottom of the first shell and is communicated with the inside of the first shell, a sliding rod is connected to the inside of the material returning box, a material returning corner block and a first spring are connected to the outer wall of the sliding rod in a sliding mode, the first spring is arranged between the material returning corner block and the material returning box, a roller wheel is arranged on the inclined plane at the top of the material returning corner block, the material returning corner block is close to the first shell bottom wall of one side perpendicular to the air inlet port, a lower plate port is formed in the bottom of the first shell, a recycling bin is detachably connected to the bottom of the lower plate port, and the recycling bin can be detachably connected to the outer wall of the air inlet pipe.
Preferably, the closing assembly comprises a second walking frame and a third slide rail, the third slide rail is arranged on the inner walls of the two sides of the second shell, the two sides of the second walking frame are respectively and rotatably connected with two sets of third idler wheels, the two sides of the second walking frame are respectively and rotatably connected with the inner walls of the third slide rails on the two sides of the second shell, the inner wall of the second shell is provided with a telescopic rod, and the telescopic end of the telescopic rod is connected to the outer side wall of the second walking frame.
Preferably, the inner wall of the second walking frame is rotatably connected with four groups of second connecting rods, the ends, far away from the second walking frame, of the second connecting rods are rotatably connected with a closed plate, the closed plate is matched with the sealing frame and the elastic linkage assembly, the bottom of the closed plate is rotatably connected with a fourth roller, and the fourth roller is matched with the inner wall of the second shell.
Preferably, the elastic linkage assembly comprises a trigger rod and a jacking rod, the trigger rod and the jacking rod are connected to the inner wall of the sealing frame in a sliding mode, the trigger rod and the jacking rod are connected in a staggered mode, a second spring is connected between the top of the trigger rod and the inner wall of the sealing frame, and the trigger rod is matched with the closing plate.
Preferably, the jacking rod top is connected with the extrusion stem, the extrusion stem top is connected with the carriage, carriage sliding connection is in the sealing frame inner wall, be connected with the third spring between carriage inner wall and the sealing frame inner wall, carriage outer wall connection has tight strip of clamp.
A treatment method of a nuclear power station waste gas treatment system comprises the following steps:
s1: before use, the air inlet access pipe is connected with a channel for discharging waste gas, the air outlet access pipe is connected with the exhaust pipe, the closing assembly with the closing plate and the sealing frame are in a closing state, the replacing mechanism with the loading frame is in a plate loading port position, the radiation-proof cover plate is opened, the activated carbon fiber plate is inserted into the plate loading port and penetrates through the plate loading port in the partition plate to be inserted into the inner wall of the loading frame, the loading frame elastically limits the activated carbon fiber plate through the elastic buckle, and the radiation-proof cover plate is covered back after loading is finished;
s2: the motor is started, the motor drives the screw rod to rotate, the screw rod drives the first walking frame to move towards the direction of the sealing frame through threads, the first roller and the second roller roll on the inner walls of the first sliding rail and the second sliding rail respectively, the first walking frame drives the loading frame and the activated carbon fiber board to move through the first connecting rod, when the second roller on the side wall of the loading frame rolls to the position of the limiting groove, the second roller sinks and drives the loading frame to move downwards into the sealing frame and is attached to the sealing frame, the screw rod continues to rotate and drives the first walking frame and the first connecting rod to rotate so that the first connecting rod rotates vertically, the first walking frame has vertical downward pressure on the loading frame, and the situation that gaps are generated due to large impact force of waste gas on the loading frame and the activated carbon fiber board, and the filtering effect is reduced is prevented;
s3: after the activated carbon fiber board is installed, the telescopic rod is started to contract, the telescopic end of the telescopic rod drives the second walking frame to contract, so that the second walking frame drives the third roller to roll on the inner wall of the third sliding rail, meanwhile, the second connecting rod is driven to link the closing plate to move downwards, the elastic linkage assembly is removed, the fourth roller rolls on the inner wall of the second shell, the closing plate is contracted towards the telescopic rod, the channel is opened, and waste gas filtration is started;
s4: when the activated carbon fiber board needs to be replaced, the telescopic rod is started to extend out to drive the closing board to seal the sealing frame, waste gas is prevented from being discharged without being processed during replacement, when the closing board is closed upwards, the trigger rod at the bottom of the sealing frame can be extruded, the trigger rod moves upwards to drive the second spring to compress, the jacking rod is driven to move upwards, the inclined wedge surface at the top of the jacking rod drives the extrusion rod and the sliding frame to move towards the direction away from the jacking rod, the third spring compresses, so that the clamping strip retracts and does not clamp and seal the loading frame, the loading frame can move, when the closing board is opened, the jacking rod does not jack, and the third spring rebounds to drive the clamping strip to clamp and seal the periphery of the loading frame;
s5: when the closing assembly is closed, when the elastic linkage assembly is no longer used for clamping and sealing the loading frame, the driving assembly is started to drive the loading frame to break away from the sealing frame in the process of moving towards the plate loading port, the vertical surface of the material returning corner block can abut against the activated carbon fiber plate, when the resistance is greater than the clamping force of the spring buckle, the activated carbon fiber plate which breaks away from the loading frame can be driven to fall into the recovery bin from the lower plate port to be collected, when the new activated carbon fiber plate is loaded and moves to the top of the material returning corner block, the activated carbon fiber plate can extrude the material returning corner block through the roller wheel, the material returning corner block can retract into the material returning box, the activated carbon fiber plate can pass through smoothly, and then the replacement is completed.
Compared with the prior art, the invention provides a nuclear power station waste gas treatment system, which has the following beneficial effects:
1. this nuclear power station exhaust-gas treatment system through setting up change mechanism inside first casing, can realize demolising old activated carbon fiber board automatically to collect, the too much contact of personnel is avoided to the in-process, very big guarantee personnel do not receive the harm of radioactive substance, and it is also very convenient to install new activated carbon fiber board, activated carbon fiber board can automatic closed passageway, and the leakproofness is good, and compressive capacity is strong.
2. This nuclear power station exhaust-gas treatment system through set up closed assembly in second casing is inside, can seal the passageway before changing activated carbon fiber board, avoids untreated waste gas to reveal, when guaranteeing the exhaust-gas treatment effect, has also protected personnel's safety.
3. This nuclear power station exhaust-gas treatment system through set up the elasticity linkage subassembly in sealed frame inside, can open at the closure subassembly and press from both sides tightly sealed all around to loading frame, ensures that waste gas can not reveal from the place outside the activated carbon fiber board, causes the pollution, also can loosen loading frame when the closure subassembly is closed, ensures loading frame ability normal operating.
The invention can realize the automatic removal of the old activated carbon plate in the waste gas treatment system, is convenient to replace, reduces the contact of personnel, ensures the safety of personnel, has good sealing performance during installation and can avoid leakage.
Drawings
Fig. 1 is a schematic external structural diagram of a nuclear power plant exhaust gas treatment system according to the present invention.
Fig. 2 is a schematic diagram of an external structure of a nuclear power plant exhaust gas treatment system according to the present invention.
Fig. 3 is a schematic overall cross-sectional structure diagram of a nuclear power plant exhaust gas treatment system according to the present invention.
Fig. 4 is a first schematic sectional structural diagram of a first housing of an exhaust gas treatment system of a nuclear power plant according to the present invention.
Fig. 5 is a schematic cross-sectional structure diagram of a second housing of the exhaust gas treatment system of the nuclear power plant according to the present invention.
Fig. 6 is a third schematic structural diagram of a cross section of a first shell of the exhaust gas treatment system of the nuclear power plant according to the present invention.
Fig. 7 is a schematic cross-sectional view of a second casing of the exhaust gas treatment system of the nuclear power plant according to the first embodiment of the present invention.
Fig. 8 is a schematic cross-sectional structure diagram of a sealing frame of an exhaust gas treatment system of a nuclear power plant according to the present invention.
Fig. 9 is an enlarged view of a portion a of fig. 5 of an exhaust gas treatment system for a nuclear power plant according to the present invention.
Fig. 10 is an enlarged view of a portion B of fig. 8 of an exhaust gas treatment system for a nuclear power plant according to the present invention.
In the figure: 100. a first housing; 101. a second housing; 102. an air outlet access pipe; 103. an air inlet access pipe; 104. a recovery bin; 105. a motor; 106. plate loading openings; 107. a radiation-proof cover plate; 108. a sealing frame; 109. a lower plate opening; 110. a bump; 111. withdrawing the material box; 200. a screw rod; 201. a first traveling frame; 202. a first connecting rod; 203. a partition plate; 204. a first roller; 205. a loading frame; 206. a second roller; 207. an activated carbon fiber board; 208. a limiting groove; 209. a first slide rail; 210. a second slide rail; 300. a telescopic rod; 301. a second walking frame; 302. a second connecting rod; 303. a fourth roller; 304. a third slide rail; 305. a third roller; 306. a closing plate; 307. a trigger lever; 308. a second spring; 309. jacking up the rod; 310. an extrusion stem; 311. a carriage; 312. a third spring; 313. a clamping bar; 400. returning the material corner block; 401. a roller; 402. a first spring; 403. a slide bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 10, a system for treating exhaust gas from a nuclear power plant includes an outlet inlet pipe 102, an inlet pipe 103 connected to the outlet inlet pipe 102, and a first housing 100 connected to an outer wall of the outlet inlet pipe, where the first housing 100 is connected to the outlet inlet pipe 102, and further includes:
the sealing frame 108 is connected to the inner wall of the air outlet access pipe 102, and an elastic linkage assembly is arranged inside the sealing frame 108;
the replacing mechanism is arranged inside the first shell 100 and comprises a driving assembly and a material returning assembly, the driving assembly is arranged on the inner wall of the first shell 100, the material returning assembly is arranged at the bottom of the first shell 100 and matched with the driving assembly, the output end of the driving assembly is connected with a loading frame 205, an activated carbon fiber plate 207 is arranged inside the loading frame 205, and the loading frame 205 is matched with the elastic linkage assembly;
the second casing 101 is arranged on the outer wall of the air inlet access pipe 103, the second casing 101 is communicated with the air inlet access pipe 103, a closing component is arranged inside the second casing 101, and the closing component is matched with the sealing frame 108 and the elastic linkage component.
The driving assembly comprises a motor 105, a screw rod 200 and a first walking frame 201, the screw rod 200 is rotatably connected to the inner wall of the first shell 100, the motor 105 is installed on the outer side wall of the first shell 100, the output end of the motor 105 penetrates through the side wall of the first shell 100 to be connected with the screw rod 200, the first walking frame 201 is connected to the outer wall of the screw rod 200, the first walking frame 201 is provided with threads to be matched with the screw rod 200, the inner wall of the first walking frame 201 is rotatably connected with four groups of connecting rods 202, one ends, far away from the first walking frame 201, of the four groups of connecting rods 202 are rotatably connected to the top of the loading frame 205, and the inner wall of the loading frame 205 is provided with an elastic buckle for fixing the activated carbon fiber board 207.
One side that first walking frame 201 is close to motor 105 is connected with baffle 203, and dress board mouth 106 has all been seted up to first casing 100 and baffle 203 outer wall, and dress board mouth 106 all cooperates and installs radiation protection apron 107, and baffle 203 cooperatees with first casing 100 inner wall, and logical groove has all been seted up to baffle 203 and loading frame 205 bottom, and sealing frame 108 top is connected with lug 110, leads to groove and lug 110 cooperatees.
The material returning box 111 is installed to first casing 100 bottom, the material returning box 111 is linked together with first casing 100 is inside, material returning box 111 internal connection has slide bar 403, slide bar 403 outer wall sliding connection has material returning hornblock 400 and first spring 402, first spring 402 sets up between material returning hornblock 400 and material returning box 111, material returning hornblock 400 top inclined plane is provided with running roller 401, material returning hornblock 400 is close to the first casing 100 diapire of one side perpendicular to that the airtight gas inserts mouth 102, lower plate mouth 109 has been seted up to first casing 100 bottom, lower plate mouth 109 bottom can be dismantled and is connected with recovery storehouse 104, recovery storehouse 104 can be dismantled and connect in the outer wall of air inlet access pipe 103.
The closing assembly comprises a second walking frame 301 and a third sliding rail 304, the third sliding rail 304 is arranged on the inner walls of two sides of the second shell 101, two sides of the second walking frame 301 are respectively rotatably connected with two sets of third rollers 305, the third rollers 305 on two sides are respectively connected with the inner walls of the third sliding rails 304 on two sides of the second shell 101 in a rolling manner, a telescopic rod 300 is installed on the inner wall of the second shell 101, and the telescopic end of the telescopic rod 300 is connected to the outer side wall of the second walking frame 301.
The inner wall of the second walking frame 301 is rotatably connected with four groups of second connecting rods 302, one ends, far away from the second walking frame 301, of the four groups of second connecting rods 302 are rotatably connected with closing plates 306, the closing plates 306 are matched with the sealing frame 108 and the elastic linkage assembly, the bottom of the closing plates 306 is rotatably connected with fourth rollers 303, and the fourth rollers 303 are matched with the inner wall of the second shell 101.
The elastic linkage assembly comprises a trigger rod 307 and a jacking rod 309, the trigger rod 307 and the jacking rod 309 are both connected to the inner wall of the sealing frame 108 in a sliding mode, the trigger rod 307 and the jacking rod 309 are connected in a staggered mode, a second spring 308 is connected between the top of the trigger rod 307 and the inner wall of the sealing frame 108, and the trigger rod 307 is matched with the closing plate 306.
The top of the jacking rod 309 is connected with a pressing rod 310, the top of the pressing rod 310 is connected with a sliding frame 311, the sliding frame 311 is connected with the inner wall of the sealing frame 108 in a sliding mode, a third spring 312 is connected between the inner wall of the sliding frame 311 and the inner wall of the sealing frame 108, and the outer wall of the sliding frame 311 is connected with a clamping strip 313.
Before the device is used, an air inlet access pipe 103 is connected with a channel for discharging waste gas, an air outlet access pipe 102 is connected with a discharge pipe, at the moment, a closing component with a closing plate 306 and a sealing frame 108 are in a closing state, a replacing mechanism with a loading frame 205 is positioned at a plate loading port 106, a radiation-proof cover plate 107 is opened, an activated carbon fiber plate 207 is inserted into the plate loading port 106 and penetrates through the plate loading port 106 on a partition plate 203 to be inserted into the inner wall of the loading frame 205, the loading frame 205 elastically limits the activated carbon fiber plate 207 through an elastic buckle, and after loading is finished, the radiation-proof cover plate 107 is covered back;
the motor 105 is started, the motor 105 drives the screw rod 200 to rotate, the screw rod 200 drives the first walking frame 201 to move towards the sealing frame 108 through threads, and the first roller 204 and the second roller 206 roll on the inner walls of the first sliding rail 209 and the second sliding rail 210, respectively, the first traveling frame 201 drives the loading frame 205 and the activated carbon fiber plate 207 to move through the first connecting rod 202, when the second roller 206 of the sidewall of the loading frame 205 rolls to the position of the limiting groove 208, it sinks and drives the loading frame 205 to move down into the sealing frame 108, and is jointed with the sealing frame 108, the screw rod 200 continues to rotate to drive the first walking frame 201 and the first connecting rod 202 to rotate, so that the first connecting rod 202 rotates to be vertical, so that the first traveling frame 201 has a vertical downward pressure on the loading frame 205, and the loading frame 205 and the activated carbon fiber board 207 are prevented from generating gaps due to a large impact force of waste gas, thereby preventing a reduction in the filtering effect;
after the activated carbon fiber board 207 is installed, the telescopic rod 300 is started to contract, the telescopic end of the telescopic rod 300 drives the second walking frame 301 to contract, so that the second walking frame 301 drives the third roller 305 to roll on the inner wall of the third sliding rail 304, meanwhile, the second connecting rod 302 is driven to link the closing plate 306 to move downwards, the elastic linkage component is removed, the fourth roller 303 rolls on the inner wall of the second shell 101, the closing plate 306 contracts towards the direction of the telescopic rod 300, the channel is opened, and waste gas filtration is started;
when the activated carbon fiber board 207 needs to be replaced, the expansion rod 300 is started to extend out to drive the closing board 306 to seal the sealing frame 108, waste gas is prevented from being discharged without being treated during replacement, when the closing board 306 is closed upwards, the trigger rod 307 at the bottom of the sealing frame 108 is extruded, the trigger rod 307 moves upwards to drive the second spring 308 to compress, the jacking rod 309 is driven to move upwards, the inclined wedge surface at the top of the jacking rod 309 drives the extrusion rod 310 and the sliding frame 311 to move in the direction away from the jacking rod 309, the third spring 312 compresses, the clamping strip 313 retracts and does not clamp and seal the loading frame 205, the loading frame 205 can move, when the closing board 306 is opened, the jacking rod 309 does not jack any more, and the third spring 312 rebounds to drive the clamping strip 313 to clamp and seal the periphery of the loading frame 205;
when the closing component is closed and the elastic linkage component does not clamp and seal the loading frame 205 any more, the driving component is started to drive the loading frame 205 to be separated from the sealing frame 108 in the process of moving towards the loading port 106, the vertical surface of the material returning horn 400 can abut against the activated carbon fiber plate 207, when the resistance is greater than the clamping force of the spring buckle, the activated carbon fiber plate 207 separated from the loading frame 205 can be driven to fall into the recovery bin 104 from the lower port 109 for collection, when a new activated carbon fiber plate 207 is loaded and moves to the top of the material returning horn 400, the activated carbon fiber plate 207 can extrude the material returning horn 400 through the roller 401, the material returning horn 400 can retract into the material returning and feeding box 111, so that the activated carbon fiber plate 207 can pass through smoothly, and replacement is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a nuclear power station exhaust-gas treatment system, includes that it inserts pipe (102) to give vent to anger, inserts pipe (103) and connect in giving vent to anger and insert first casing (100) that the pipe outer wall is connected to the income pipe of giving vent to anger that the income pipe (102) is linked together, first casing (100) are linked together with giving vent to anger and insert pipe (102), its characterized in that still includes:
the sealing frame (108) is connected to the inner wall of the air outlet access pipe (102), and an elastic linkage assembly is arranged in the sealing frame (108);
the replacing mechanism is arranged inside the first shell (100) and comprises a driving assembly and a material returning assembly, the driving assembly is arranged on the inner wall of the first shell (100), the material returning assembly is arranged at the bottom of the first shell (100), the driving assembly is matched with the material returning assembly, the output end of the driving assembly is connected with a loading frame (205), an activated carbon fiber board (207) is arranged inside the loading frame (205), and the loading frame (205) is matched with the elastic linkage assembly;
the second shell (101) is arranged on the outer wall of the air inlet access pipe (103), the second shell (101) is communicated with the air inlet access pipe (103), a closing component is arranged inside the second shell (101), and the closing component is matched with the sealing frame (108) and the elastic linkage component.
2. Nuclear power plant exhaust gas treatment system according to claim 1, wherein the drive assembly comprises a motor (105), a screw (200) and a first travelling carriage (201), the screw rod (200) is rotationally connected with the inner wall of the first shell (100), the motor (105) is arranged on the outer side wall of the first shell (100), the output end of the motor (105) passes through the side wall of the first shell (100) and is connected with the screw rod (200), the first walking frame (201) is connected with the outer wall of the screw rod (200), the first walking frame (201) is provided with threads which are matched with the screw rod (200), four groups of first connecting rods (202) are rotatably connected to the inner wall of the first walking frame (201), one ends of the four groups of first connecting rods (202) far away from the first walking frame (201) are rotatably connected to the top of the loading frame (205), the inner wall of the loading frame (205) is provided with an elastic buckle for fixing the activated carbon fiber board (207).
3. The nuclear power plant waste gas treatment system as recited in claim 2, wherein the first casing (100) has first slide rails (209) and second slide rails (210) on both sides of the inner wall, two sets of the second slide rails (210) have limiting grooves (208) on one end near the sealing frame (108), the outer wall of the first traveling frame (201) is rotatably connected with four sets of first rollers (204), the side walls of the loading frame (205) have second rollers (206) on both sides of the inner wall, the four sets of the first rollers (204) and the two sets of the second rollers (206) respectively roll on the inner walls of the first slide rails (209) and the second slide rails (210), and the second rollers (206) are matched with the limiting grooves (208).
4. The nuclear power plant waste gas treatment system as recited in claim 2, wherein a partition plate (203) is connected to one side of the first traveling frame (201) close to the motor (105), a plate loading opening (106) is formed in each of the outer walls of the first casing (100) and the partition plate (203), a radiation-proof cover plate (107) is installed in each plate loading opening (106) in a matched mode, the partition plate (203) is matched with the inner wall of the first casing (100), through grooves are formed in each of the bottoms of the partition plate (203) and the loading frame (205), a convex block (110) is connected to the top of the sealing frame (108), and the through grooves are matched with the convex blocks (110).
5. The nuclear power plant exhaust gas treatment system of claim 1, wherein a material withdrawal box (111) is installed at the bottom of the first casing (100), the material withdrawing box (111) is communicated with the inside of the first shell (100), a sliding rod (403) is connected with the inside of the material withdrawing box (111), the outer wall of the sliding rod (403) is connected with a material returning corner block (400) and a first spring (402) in a sliding way, the first spring (402) is arranged between the material returning corner block (400) and the material returning box (111), a roller (401) is arranged on the inclined plane at the top of the material returning corner block (400), one side of the material returning corner block (400) close to the sealed air inlet (102) is vertical to the bottom wall of the first shell (100), a lower plate opening (109) is arranged at the bottom of the first shell (100), the bottom of the lower plate opening (109) is detachably connected with a recovery bin (104), the recycling bin (104) is detachably connected to the outer wall of the air inlet connecting pipe (103).
6. The nuclear power plant waste gas treatment system as recited in claim 1, wherein the closing assembly comprises a second walking frame (301) and a third sliding rail (304), the third sliding rail (304) is arranged on the inner wall of the second shell (101), two groups of third rollers (305) are respectively rotatably connected to two sides of the second walking frame (301), the third rollers (305) are respectively connected to the inner wall of the third sliding rail (304) on two sides of the second shell (101) in a rolling manner, a telescopic rod (300) is installed on the inner wall of the second shell (101), and the telescopic end of the telescopic rod (300) is connected to the outer side wall of the second walking frame (301).
7. The nuclear power plant waste gas treatment system as recited in claim 6, wherein four groups of second connecting rods (302) are rotatably connected to the inner wall of the second traveling frame (301), a closing plate (306) is rotatably connected to each of the four groups of ends, far away from the second traveling frame (301), of the second connecting rods (302), the closing plates (306) are respectively matched with the sealing frame (108) and the elastic linkage assembly, a fourth roller (303) is rotatably connected to the bottom of the closing plate (306), and the fourth roller (303) is matched with the inner wall of the second shell (101).
8. The nuclear power plant exhaust gas treatment system of claim 1, wherein the elastic linkage assembly comprises a trigger rod (307) and a jacking rod (309), the trigger rod (307) and the jacking rod (309) are both connected to the inner wall of the sealing frame (108) in a sliding mode, the trigger rod (307) and the jacking rod (309) are connected in a staggered mode, a second spring (308) is connected between the top of the trigger rod (307) and the inner wall of the sealing frame (108), and the trigger rod (307) is matched with the closing plate (306).
9. The nuclear power plant waste gas treatment system of claim 8, wherein the top of the jacking rod (309) is connected with an extrusion rod (310), the top of the extrusion rod (310) is connected with a sliding frame (311), the sliding frame (311) is slidably connected with the inner wall of the sealing frame (108), a third spring (312) is connected between the inner wall of the sliding frame (311) and the inner wall of the sealing frame (108), and a clamping strip (313) is connected with the outer wall of the sliding frame (311).
10. A method of treating an exhaust gas treatment system for a nuclear power plant as claimed in any one of claims 1 to 9, comprising the steps of:
s1: before use, the air inlet access pipe (103) is connected with a channel for discharging waste gas, the air outlet access pipe (102) is connected with a discharge pipe, at the moment, the closing assembly with the closing plate (306) and the sealing frame (108) are in a closing state, the replacing mechanism with the loading frame (205) is positioned at the plate loading port (106), the radiation-proof cover plate (107) is opened, the activated carbon fiber plate (207) is inserted into the plate loading port (106) and penetrates through the plate loading port (106) on the partition plate (203) to be inserted into the inner wall of the loading frame (205), the loading frame (205) elastically limits the activated carbon fiber plate (207) through an elastic buckle, and after loading is finished, the radiation-proof cover plate (107) is covered back;
s2: starting a motor (105), driving a screw rod (200) to rotate by the motor (105), driving a first walking frame (201) to move towards a sealing frame (108) by the screw rod (200) through threads, driving a loading frame (205) and an activated carbon fiber board (207) to move by a first roller (204) and a second roller (206) respectively on the inner walls of a first sliding rail (209) and a second sliding rail (210), sinking when the second roller (206) on the side wall of the loading frame (205) rolls to a limiting groove (208) and driving the loading frame (205) to move downwards into the sealing frame (108) and be attached to the sealing frame (108), driving the first walking frame (201) and the first connecting rod (202) to rotate to enable the first connecting rod (202) to rotate to be vertical, so that the first walking frame (201) has vertical downward pressure on the loading frame (205), prevent the loading frame (205) and the activated carbon fiber board (207) from generating gaps due to larger impulsive force of waste gas, which causes the reduction of the filtering effect;
s3: after the activated carbon fiber board (207) is installed, the telescopic rod (300) is started to contract, the telescopic end of the telescopic rod (300) drives the second walking frame (301) to contract, so that the second walking frame (301) drives the third roller (305) to roll on the inner wall of the third sliding rail (304) and simultaneously drives the second connecting rod (302) to link with the closing board (306) to move downwards, the elastic linkage component is removed, the fourth roller (303) rolls on the inner wall of the second shell (101), and the closing board (306) contracts towards the direction of the telescopic rod (300), so that the channel is opened, and waste gas filtration is started;
s4: when the activated carbon fiber board (207) needs to be replaced, the telescopic rod (300) is started to extend out to drive the closing board (306) to seal the sealing frame (108), waste gas is prevented from being discharged without being treated during replacement, when the closing board (306) is closed upwards, the trigger rod (307) at the bottom of the sealing frame (108) is extruded, the trigger rod (307) moves upwards to drive the second spring (308) to compress, the jacking rod (309) is driven to move upwards, the inclined wedge surface at the top of the jacking rod (309) drives the extrusion rod (310) and the sliding frame (311) to move in the direction away from the jacking rod (309), the third spring (312) compresses, the clamping strip (313) retracts and does not clamp and seal the loading frame (205), the loading frame (205) can move, when the closing board (306) is opened, the jacking rod (309) does not jack up any more, the third spring (312) rebounds to drive the clamping strip (313) to clamp and seal the periphery of the loading frame (205);
s5: when the closing component is closed and the elastic linkage component does not clamp and seal the loading frame (205), the driving component is started to drive the loading frame (205) to be separated from the sealing frame (108) in the process of moving towards the plate loading port (106), the vertical surface of the material returning corner block (400) can prop against the activated carbon fiber plate (207), when the resistance is greater than the clamping force of the spring buckle, the activated carbon fiber plate (207) separated from the loading frame (205) can be driven to fall into the recovery bin (104) from the lower plate port (109) for collection, when a new activated carbon fiber plate (207) is loaded and moves to the top of the material returning corner block (400), the activated carbon fiber plate (207) can extrude the material returning corner block (400) through the roller (401), the material returning corner block (400) can retract into the material returning box (111), so that the activated carbon fiber plate (207) can pass smoothly, thereby completing the replacement.
Priority Applications (2)
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| CN202211411042.5A CN115608102B (en) | 2022-01-27 | 2022-01-27 | Application method of waste gas treatment system of nuclear power station |
| CN202210102304.3A CN114367167B (en) | 2022-01-27 | 2022-01-27 | Nuclear power station waste gas treatment system and treatment method thereof |
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| CN202210102304.3A CN114367167B (en) | 2022-01-27 | 2022-01-27 | Nuclear power station waste gas treatment system and treatment method thereof |
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Cited By (1)
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Also Published As
| Publication number | Publication date |
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| CN115608102A (en) | 2023-01-17 |
| CN115608102B (en) | 2023-11-17 |
| CN114367167B (en) | 2022-12-09 |
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Effective date of registration: 20231012 Address after: 214200 No. 2, Huixing North Road, Yixing Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: JIANGSU XIJIE NEW ENERGY ENGINEERING TECHNOLOGY Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: 214200 No. 2, Huixing North Road, Yixing Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: JIANGSU XIJIE NEW ENERGY ENGINEERING TECHNOLOGY Co.,Ltd. |