CN102417140B - Sealing exhaust system and sealing exhaust method - Google Patents
Sealing exhaust system and sealing exhaust method Download PDFInfo
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- CN102417140B CN102417140B CN 201110231068 CN201110231068A CN102417140B CN 102417140 B CN102417140 B CN 102417140B CN 201110231068 CN201110231068 CN 201110231068 CN 201110231068 A CN201110231068 A CN 201110231068A CN 102417140 B CN102417140 B CN 102417140B
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Abstract
The invention provides a sealing exhaust system and a sealing exhaust method. The sealing exhaust system is arranged on a vehicle of a nuclear power station, and contains an air exhaust device for discharging thermal current from a shaft well on the ground of the nuclear power station. The sealing exhaust system contains a shield and a sealing device. The shield comprises a vertically arranged channel. A first gap is disposed between the shield and the ground. The sealing device contains an annular flexible pipe which is fixedly connected at the bottom of the shield. When the channel is positioned over the shaft well, air inflation is carried out through the annular flexible pipe so as to seal the first gap between the shield and the ground. A second gap is disposed between the annular flexible pipe and the ground after venting. The sealing exhaust system and the sealing exhaust method provided by the invention can be used to more effectively discharge heat from the shaft well of the nuclear power station, reduce the volume of the sealing device, decrease the processing difficulty and simultaneously minimize the cost and improve the sealing effect.
Description
Technical field
The present invention relates to a kind of seal venting system and sealing method for exhausting, relate in particular to a kind of seal venting system and sealing method for exhausting that is applied to ground vehicle of nuclear power station.
Background technology
Because China's new forms of energy development in recent years is rapid, plan and the nuclear station project of building are a lot.Nuclear station can produce spentnuclear fuel, have a lot of vertical shafts that are used for depositing var fuel pot at some nuclear station below ground, and picking and placeing all of var fuel pot can be completed with ground vehicle of nuclear power station.Ground vehicle of nuclear power station is a kind of novel HTGR Nuclear Power Plant weight-lifting equipment, the process of taking out or put into var fuel pot the exhaust system of the car thermal current that can take vertical shaft away dispel the heat, exhaust system comprises screened housing and air extractor etc.
Screened housing is the metal parts that vertically is arranged on the ground car, and screened housing has columniform passage, and the diameter of passage is substantially equal to the diameter of vertical shaft.Var fuel pot all needs through passage in the process that proposes and put into vertical shaft from vertical shaft, and screened housing is used for the radiation at this process shielding spentnuclear fuel.When the ground car moves on the ground, has certain gap between screened housing and ground.The top of screened housing has the air extractor of continuous firing, and air extractor can be taken the thermal current in screened housing away, to carry out ventilation and heat.When local car moved to the passage that makes screened housing and just is positioned at position on the nuclear station vertical shaft, air extractor can be extracted the thermal current in screened housing and vertical shaft out.
In general, discharge the effect of thermal current in order to prevent the gap affects between screened housing and ground, exhaust system also comprises sealing arrangement.Sealing arrangement is fixedly installed on the screened housing lower end, and can vertically pack up and put down, in order to the gap between closed shield cover and ground in exhaust process, make the certain cavity of formation between screened housing and vertical shaft, to reach the effect of better discharge thermal current.In order to prevent the sealing arrangement interfering movement, sealing arrangement is packed up in the process of ground car motion, makes to have certain interval between screened housing and ground and can relative motion.
In prior art, sealing arrangement is by the annular solid sealing band of the up-and-down movement of mechanical drive drive, realizes the sealing function between screened housing and ground when sealing band all puts down, and realizes keeping the function in gap when packing up.Yet the gap that is limited to screened housing and ground is very little, and the parts that use mechanical drive to need are more, cause the volume of sealing arrangement large, complex structure, and cost is high, and sealing effectiveness is poor.
Given this, this area need to propose a kind of simple in structure, cost is low, the seal venting system of good sealing effect and the sealing method for exhausting, to address the above problem.
Summary of the invention
In order to address the above problem, the objective of the invention is to propose a kind of simple in structure, cost is low, the seal venting system of good sealing effect and the sealing method for exhausting.
The invention provides a kind of seal venting system, be arranged on ground vehicle of nuclear power station, seal venting system comprises air extractor, is used for discharging the thermal current of nuclear station below ground vertical shaft, and seal venting system also comprises:
Screened housing comprises the passage of vertical setting having the first gap between screened housing and ground;
Sealing arrangement, the annular hose that comprises the bottom surface that is fixedly connected on screened housing, annular hose is inflated with the first gap between closed shield cover and ground when the passage of screened housing is above vertical shaft, and annular hose has the second gap after venting and between ground.
In an embodiment of the present invention, sealing arrangement also comprises:
Inflation unit is connected in annular hose, is used for inflating to annular hose; And
The venting unit is connected in annular hose, is used for annular hose is exitted.
In an embodiment of the present invention, sealing arrangement also comprises:
The first connection pipe, an end of the first connection pipe is communicated in annular hose, and the other end is connected in inflation unit; And
The second connection pipe, an end of the second connection pipe is communicated in described annular hose, and the other end is connected in the venting unit.
In an embodiment of the present invention, seal venting system also comprises:
The support portion is arranged on the both sides of screened housing, and inflation unit and venting unit are arranged at the support portion.
In an embodiment of the present invention, seal venting system also comprises detection apparatus for aeration, and whether detection apparatus for aeration has been full of gas by the pressure detection annular hose that detects annular hose.
In an embodiment of the present invention, seal venting system also comprises the venting detecting device, and whether fully the venting detecting device detects annular hose venting by the discharge quantity that detects annular hose.
In an embodiment of the present invention, the material of annular hose is that nylon, rubber or canvas etc. can be realized distending and the gas impermeable material of packing up by inflation and venting.
The present invention is another proposes a kind of sealing method for exhausting, discharges hot air in vertical shaft with above-mentioned seal venting system, seals method for exhausting and comprises the following steps:
S1: the passage of screened housing is moved to the vertical shaft top;
S2: to the annular hose inflation, make the first gap between annular hose closed shield cover and ground; And
S3: use the thermal current in air extractor extraction vertical shaft.
In an embodiment of the present invention, also comprise after step S3:
S4: to the annular hose venting, make and form the second gap between annular hose and ground; And
S5: remove described screened housing above vertical shaft.
In an embodiment of the present invention, be to inflate to annular hose by inflation unit in step S2.
In an embodiment of the present invention, also comprise after step S2:
S2-1: detect annular hose by detection apparatus for aeration and whether be full of gas.
In an embodiment of the present invention, be by the unit of exitting, annular hose to be exitted in step S4.
In an embodiment of the present invention, also comprise after step S4:
S4-1: detect whether fully venting of annular hose by the venting detecting device.
By seal venting system provided by the invention and sealing method for exhausting, can more effectively discharge the heat in the vertical shaft of nuclear station ground.Avoid the parts of the complexity of use mechanical drive needs, reduced the volume of sealing arrangement, reduced difficulty of processing, reduced simultaneously cost, promoted sealing effectiveness.
Description of drawings
Fig. 1 is the cross-sectional schematic of seal venting system in one embodiment of the invention, and wherein sealing arrangement is in deflation status;
Fig. 2 is the schematic top plan view of seal venting system in Fig. 1;
Fig. 3 is the cross-sectional schematic of parking stall, nuclear station ground on vertical shaft in one embodiment of the invention, and wherein sealing arrangement is in inflated condition; And
Fig. 4 is the local enlarged diagram at M place in Fig. 3.
The specific embodiment
Fig. 1 is the cross-sectional schematic of seal venting system in one embodiment of the invention, and Fig. 2 is the schematic top plan view of seal venting system in Fig. 1.In conjunction with illustrated in figures 1 and 2, seal venting system 100 of the present invention is parts of ground vehicle of nuclear power station, and seal venting system 100 comprises screened housing 10, sealing arrangement 20 and air extractor (not shown).Screened housing 10 arranges perpendicular to ground 200, is generally hollow circular cylinder, is made with the shielded nucleus radiation by metallic material.Has the first gap H1 between the lower end of screened housing 10 and ground 200.Screened housing 10 has the hollow cylindrical passage 11 that arranges perpendicular to ground 200 equally, the var fuel pot of nuclear station can take out or put into the vertical shaft 201 (seeing Fig. 3) on nuclear station ground 200 by passage 11, it is identical with the diameter of vertical shaft 201 that the diameter of passage 11 is preferably.Air extractor is arranged on the top of screened housing 10, and the air extractor continuous firing is for the thermal current of extracting passage 11 and vertical shaft 201 out.Sealing arrangement 20 is fixedly connected on the lower end of screened housing 10, as shown in Figure 2, sealing arrangement 20 comprises annular hose 21, annular hose 21 is preferably and the concentric setting of passage 11, and be fixed in the bottom of screened housing 10, the slightly larger in diameter of the annular section of annular hose 21 is in the diameter of passage 11 and vertical shaft 201.In the present embodiment, annular hose 21 is preferably the bottom that the mode that is bolted is fixed in screened housing 10, yet the present invention is not as limit.The material of annular hose 21 does not limit in the present invention, is preferably nylon, rubber or canvas etc. and can realizes by inflation and venting the gas impermeable material of distending and contraction.
In the present embodiment, sealing arrangement 20 also comprises the first connection pipe 22, the second connection pipe 23, inflation unit 24 and the unit 25 of exitting.The first connection pipe 22 and the second connection pipe 23 are two pipelines of drawing from annular hose 21, and it is communicated in respectively annular hose 21, and are connected to inflation unit 24 and the unit 25 of exitting.The user can inflate and exit by inflation unit 24 and 25 pairs of the unit annular hose 21 of exitting.In an embodiment of the present invention, described inflation unit 24 is preferably inflation pump, and the unit 25 of exitting is preferably air extracting pump.Above-mentioned the first connection pipe 22 and the second connection pipe 23 can be provided with an electromagnetic valve 26 at the end near inflation unit 24 and the unit 25 of exitting, and the inflation/deflation that is used for controlling inflation unit 24 and exitting unit 25 moves.
In an embodiment of the present invention, seal venting system 100 also comprises support portion 30, is used for supporting screened housing 10.Inflation unit 24, venting unit 25 and electromagnetic valve 26 can be arranged on above-mentioned support portion 30.
See also Fig. 1, the ground car is in moving process, annular hose 21 is not filled with air and is in collapsed state, the bottom that is applying screened housings 10 due to annular hose 21 arranges, have the second gap H2 between annular hose 21 under collapsed state and ground 200, make annular hose 21 not interfere relative motion between screened housing 10 and ground 200.
Figure 3 shows that the cross-sectional schematic of seal venting system in one embodiment of the invention, wherein annular hose 21 is in the state that is full of gas; Fig. 4 is the local enlarged diagram at M place in Fig. 3.As shown in Figure 3 and Figure 4, when taking out var fuel pot when needs or var fuel pot being inserted in vertical shaft 11 from vertical shaft 11, the ground car moves to the position that makes passage 11 just be positioned at vertical shaft 201 tops, due to the air extractor continuous firing, the thermal current in vertical shaft 201 is discharged to the external world by passage 11 under the effect of air extractor.In order to reach the effect of better bleeding, the user can use sealing arrangement 20 that the gap between screened housing 10 and ground 200 is sealed.Specifically, the user inflates by opening 24 pairs of annular hoses 21 of inflation unit, after being full of gas, the sidewall of annular hose 21 fills up the first gap H1 between screened housing 10 and ground 200 just, form certain cavity between vertical shaft 201 and passage 11, outside air can't access passage 11 among, realized good sealing function, bring the effect of better bleeding.
After the action of taking out or inserting var fuel pot is completed, the ground car need to move to leave the position of vertical shaft 201, the user exits by unlatching 25 pairs of the unit annular hose 21 of exitting, collapsed state in the rear annular hose 21 of venting is returned to Fig. 1 fully, has the second gap H2 between annular hose 21 and ground, so that the motion without let or hindrance on ground 200 of ground car.
In another embodiment of the present invention, seal venting system 100 also comprises the detecting device (not shown), and detecting device can be detection apparatus for aeration or venting detecting device.When detecting device is detection apparatus for aeration, can be arranged at annular hose 21 or the first connection pipe 22, detect annular hose 21 by the pressure that detects annular hose 21 or the first connection pipe 22 and whether be full of gas.When detecting device is the venting detecting device, can be arranged at the second connection pipe 23, detect whether venting fully of annular hose 21 by detecting discharge quantity.Seal venting system 100 also can comprise detection apparatus for aeration and venting detecting device simultaneously, thereby realizes detecting inflated condition, can detect again the purpose of deflation status, is convenient to control charge air and discharge quantity.
The present invention is same proposes a kind of sealing method for exhausting, extracts the thermal current in the vertical shaft 201 on nuclear station ground 200 out by the seal venting system 100 on ground vehicle of nuclear power station.Seal venting system 100 of the present invention is parts of ground vehicle of nuclear power station, and seal venting system 100 comprises screened housing 10, sealing arrangement 20 and air extractor (not shown).Screened housing 10 arranges perpendicular to ground 200, has the first gap H1 between the lower end of screened housing 10 and ground 200.Screened housing 10 has the hollow cylindrical passage 11 that arranges perpendicular to ground 200 equally, and the var fuel pot of nuclear station can take out or put into the vertical shaft 201 on nuclear station ground 200 by passage 11, and it is identical with the diameter of vertical shaft 201 that the diameter of passage 11 is preferably.Air extractor is arranged on the top of screened housing 10, and the air extractor continuous firing is for the thermal current of extracting passage 11 and vertical shaft 201 out.Sealing arrangement 20 is fixedly connected on the lower end of screened housing 10, sealing arrangement 20 comprises annular hose 21, annular hose 21 is preferably and the concentric setting of passage 11, and is fixed in the bottom of screened housing 10, and the slightly larger in diameter of the annular section of annular hose 21 is in the diameter of passage 11 and vertical shaft 201.
Sealing method for exhausting of the present invention comprises the following steps:
Step 2 to annular hose 21 inflation, makes the sidewall of annular hose 21 fill up the first gap between screened housing 10 and ground 200, to play sealing function;
Step 3 uses the air extractor be positioned at passage 11 tops to extract the thermal current of vertical shaft 201 out;
Step 4 to annular hose 21 venting, makes between the annular hose 21 that is fixed in screened housing 10 bottoms and ground 200 and forms the second gap, so that the ground car can be on ground 200 moved; And
Step 5 is removed described ground car from vertical shaft 201 tops.
Seal in an embodiment of method for exhausting in the present invention, sealing arrangement 20 also comprises the first connection pipe 22, the second connection pipe 23, inflation unit 24 and the unit 25 of exitting.The first connection pipe 22 and the second connection pipe 23 are two pipelines of drawing from annular hose 21, and it is communicated in respectively annular hose 21, and are connected to inflation unit 24 and the unit 25 of exitting.The user can inflate and exit by inflation unit 24 and 25 pairs of the unit annular hose 21 of exitting.In an embodiment of the present invention, described inflation unit 24 is preferably inflation pump, and the unit 25 of exitting is preferably air extracting pump.Being by inflation pump, annular hose 21 to be inflated in step 2, is by air extracting pump, annular hose 21 to be exitted in step 4.Above-mentioned the first connection pipe 22 and the second connection pipe 23 can be provided with an electromagnetic valve 26 near an end of inflation unit 24 and the unit 25 of exitting simultaneously, and the inflation/deflation that is used for controlling inflation unit 24 and exitting unit 25 moves.
Seal in an embodiment of method for exhausting in the present invention, seal venting system 100 also comprises support portion 30, is used for supporting screened housing 10.Inflation unit 24, venting unit 25 and electromagnetic valve 26 can be arranged on above-mentioned support portion 30.
In another embodiment of the present invention, the sealing method for exhausting also comprises by the charge air state of detecting device (not shown) detection annular hose 21 and the step of discharge quantity state.Detecting device can be detection apparatus for aeration or venting detecting device.When detecting device is detection apparatus for aeration, the step 2 of sealing method for exhausting comprises the pressure that detects annular hose 21 or the first connection pipe 22 by the detection apparatus for aeration that is arranged at annular hose 21 or the first connection pipe 22, and then whether detection annular hose 21 has been full of gas.Whether when detecting device was the venting detecting device, the step 4 of sealing method for exhausting comprised the discharge quantity that detects annular hose by the venting detecting device that is arranged at the second connection pipe 23, and then detect annular hose 21 venting fully.Seal venting system 100 also can comprise detection apparatus for aeration and venting detecting device simultaneously, thereby realizes detecting inflated condition, can detect again the purpose of deflation status, is convenient to control charge air and discharge quantity.
By seal venting system provided by the invention and sealing method for exhausting, can more effectively discharge the heat in the vertical shaft of nuclear station ground.Avoid the parts of the complexity of use mechanical drive needs, reduced the volume of sealing arrangement, reduced difficulty of processing, reduced simultaneously cost, promoted sealing effectiveness.
Although described the present invention with reference to several exemplary embodiments, should be appreciated that term used is explanation and exemplary and nonrestrictive term.The spirit or the essence that do not break away from invention because the present invention can specifically implement in a variety of forms, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and should be in the spirit and scope that the claim of enclosing limits explain widely, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (13)
1. seal venting system, be arranged on ground vehicle of nuclear power station, described seal venting system (100) comprises air extractor, is used for the thermal current of the vertical shaft (201) on discharge nuclear station ground (200), it is characterized in that, described seal venting system (100) also comprises:
Screened housing (10) comprises the passage (11) of vertical setting having the first gap between described screened housing (10) and described ground (200); And
Sealing arrangement (20), the annular hose (21) that comprises the bottom surface that is fixedly connected on described screened housing (10), described annular hose (21) inflates to seal described the first gap between described screened housing (10) and described ground (200) when described passage (11) is positioned at described vertical shaft (201) top, described annular hose (21) has the second gap between after venting and described ground (200).
2. seal venting system as claimed in claim 1, is characterized in that, described sealing arrangement (20) also comprises:
Inflation unit (24) is connected in described annular hose (21), is used for inflating to described annular hose (21); And
Venting unit (25) is connected in described annular hose (21), is used for described annular hose (21) is exitted.
3. seal venting system as claimed in claim 2, is characterized in that, described sealing arrangement (20) also comprises:
The first connection pipe (22), an end of described the first connection pipe (22) is communicated in described annular hose (21), and the other end is connected in described inflation unit (24); And
The second connection pipe (23), an end of described the second connection pipe (23) is communicated in described annular hose (21), and the other end is connected in described venting unit (25).
4. seal venting system as claimed in claim 3, it is characterized in that, described seal venting system (100) also comprises support portion (30), described support portion (30) is arranged on the both sides of described screened housing (10), and described inflation unit (24) and described venting unit (25) are arranged at described support portion (30).
5. seal venting system as claimed in claim 2, it is characterized in that, described seal venting system (100) also comprises detection apparatus for aeration, and whether described detection apparatus for aeration has been full of gas by the described annular hose of pressure detection (21) that detects described annular hose (21).
6. seal venting system as claimed in claim 5, it is characterized in that, described seal venting system (100) also comprises the venting detecting device, and whether fully described venting detecting device detects described annular hose (21) venting by the discharge quantity that detects described annular hose (21).
7. seal venting system as claimed in claim 1, is characterized in that, the material of described annular hose (21) is that nylon, rubber or canvas or other can be realized distending and the gas impermeable material of packing up by inflation and venting.
8. a sealing method for exhausting, be used for seal venting system claimed in claim 1, it is characterized in that, comprises the following steps:
S1: the described passage (11) of described screened housing (10) is moved to described vertical shaft (201) top;
S2: to described annular hose (21) inflation, make described annular hose (21) seal described the first gap between described screened housing (10) and described ground (200); And
S3: use the thermal current in the described air extractor described vertical shaft of extraction (201).
9. sealing method for exhausting as claimed in claim 8, is characterized in that, also comprises after step S3:
S4: to described annular hose (21) venting, make and form the second gap between described annular hose (21) and described ground (200); And
S5: remove described screened housing (10) above described vertical shaft (201).
10. sealing method for exhausting as claimed in claim 9, is characterized in that, in step S2 is to inflate to described annular hose (21) by inflation unit (24).
11. sealing method for exhausting as claimed in claim 10 is characterized in that, also comprises after step S2:
S2-1: detect described annular hose (21) by detection apparatus for aeration and whether be full of gas.
12. sealing method for exhausting as claimed in claim 11 is characterized in that, in step S4 is by venting unit (25), described annular hose (21) to be exitted.
13. sealing method for exhausting as claimed in claim 12 is characterized in that, also comprises after step S4:
S4-1: detect whether fully venting of described annular hose (21) by the venting detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231068 CN102417140B (en) | 2011-08-12 | 2011-08-12 | Sealing exhaust system and sealing exhaust method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231068 CN102417140B (en) | 2011-08-12 | 2011-08-12 | Sealing exhaust system and sealing exhaust method |
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| Publication Number | Publication Date |
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| CN102417140A CN102417140A (en) | 2012-04-18 |
| CN102417140B true CN102417140B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110231068 Active CN102417140B (en) | 2011-08-12 | 2011-08-12 | Sealing exhaust system and sealing exhaust method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786089Y (en) * | 2005-01-06 | 2006-06-07 | 上海宝钢化工有限公司 | Airbag sealing unit |
| CN1818432A (en) * | 2005-02-07 | 2006-08-16 | 农业部规划设计研究院 | Aeration expanding pressure sealing method and sealer for flexible pipe |
| CN101837495A (en) * | 2009-12-15 | 2010-09-22 | 东莞弘隆金属制品有限公司 | Method for sealing shielding can |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4241869B2 (en) * | 2007-12-14 | 2009-03-18 | 三菱重工業株式会社 | Radioactive material containment vessel |
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2011
- 2011-08-12 CN CN 201110231068 patent/CN102417140B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786089Y (en) * | 2005-01-06 | 2006-06-07 | 上海宝钢化工有限公司 | Airbag sealing unit |
| CN1818432A (en) * | 2005-02-07 | 2006-08-16 | 农业部规划设计研究院 | Aeration expanding pressure sealing method and sealer for flexible pipe |
| CN101837495A (en) * | 2009-12-15 | 2010-09-22 | 东莞弘隆金属制品有限公司 | Method for sealing shielding can |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-107361A 2008.05.08 |
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| CN102417140A (en) | 2012-04-18 |
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