CN205104247U - Nuclear power station reactor radioactivity fission product processing apparatus - Google Patents

Nuclear power station reactor radioactivity fission product processing apparatus Download PDF

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Publication number
CN205104247U
CN205104247U CN201520869633.6U CN201520869633U CN205104247U CN 205104247 U CN205104247 U CN 205104247U CN 201520869633 U CN201520869633 U CN 201520869633U CN 205104247 U CN205104247 U CN 205104247U
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CN
China
Prior art keywords
treating apparatus
flange
nuclear power
inner flange
fission product
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Active
Application number
CN201520869633.6U
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Chinese (zh)
Inventor
张冬辉
张士朋
汤盛杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China General Nuclear Power Corp
CGN Power Co Ltd
Daya Bay Nuclear Power Operations and Management Co Ltd
Original Assignee
China General Nuclear Power Corp
CGN Power Co Ltd
Daya Bay Nuclear Power Operations and Management Co Ltd
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Publication date
Application filed by China General Nuclear Power Corp, CGN Power Co Ltd, Daya Bay Nuclear Power Operations and Management Co Ltd filed Critical China General Nuclear Power Corp
Priority to CN201520869633.6U priority Critical patent/CN205104247U/en
Application granted granted Critical
Publication of CN205104247U publication Critical patent/CN205104247U/en
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Abstract

The utility model relates to a million multikilowatt PWR nuclear power station radioactivity fission product handle, concretely relates to nuclear power station reactor radioactivity fission product processing apparatus, and the processing apparatus body, still including being used for spraying the external device that the pipeline is connected with fire extinguishing system, the utility model discloses a processing apparatus body accessible external device realizes spraying the sealing connection of pipeline with fire extinguishing system, can in time introduce processing apparatus body inside with the fire water when the conflagration breaing out puts out a fire, simultaneously can guarantee the leakproofness and the reliability of junction, reduce the probability that radioactive gas released outward, and improves the safety, moreover, make things convenient for the overhaul of the equipments operation in addition, the in -process that is overhauing, it is internally convenient, the outward flange is dismantled, the while inner flange can not drop inside the processing apparatus body, thereby need not extract inside filter core at the in -process that overhauls, avoid more the increase of the nuclear waste that the renew cartridge brought, be favorable to shortening equipment repair time, the labor and the material resources are saved, and the efficiency is enhanced.

Description

A kind of nuclear power plant reactor radioactive fission product treating apparatus
Technical field
The utility model relates to kilowatt pressurized water reactor nuclear power station radioactive fission product processing technology field, is specifically related to a kind of nuclear power plant reactor radioactive fission product treating apparatus.
Background technology
Containing Redioiodine in the reactor radioactive fission product of kilowatt pressurized water reactor nuclear power station, because human thyroglobulin has very high receptivity to radioiodine, after release, it is very large to human health damage, therefore, need in exhaust system, use specialized equipment to carry out iodine filtration treatment.Radioactive fission product process treating apparatus, it is the nucleus equipment of radioactive iodine pollution thing in a kind of conventional gaseous waste processing for containing in filtering nuclear island ventilating system and air draft, it is very strict to the requirement of sealing, in addition, absorption due to radioiodine is an exothermic process, the activated charcoal of the too high treating apparatus inside of may igniting of temperature, so have strict heatproof requirement to radioactive fission product process treating apparatus, need to carry out perfect security against fire preliminary work simultaneously.
Existing radioactive fission product process treating apparatus cannot realize with fire-fighting system spray pipeline reliable, be tightly connected, cause in time the fire water of fire-fighting system cannot being introduced treating apparatus during the inner breaking out of fire for the treatment of apparatus inner, to reach the effect of quick extinguishing, even if connect reliability and the sealing that also effectively cannot ensure treating apparatus by force; If install the common flange being used for external fire protection pipeline on treating apparatus, in the process of maintenance, easily occur that flange falls into treating apparatus inner and cause the phenomenon mutually disturbed with treating apparatus, thus must in advance the filter core for the treatment of apparatus inside be extracted in the process of maintenance, the increase of the nuclear waste brought to avoid more renew cartridge, but more must need again after renew cartridge to carry out efficiency test to treating apparatus, carrying out smoothly not only bad for overhaul of the equipments operation, and waste a large amount of manpower and materials, overhaul efficiency is low, and cost is high.
Therefore, need badly a kind of can, the nuclear power plant reactor radioactive fission product treating apparatus that be tightly connected reliable with fire-fighting system spray pipeline.
Utility model content
The purpose of this utility model is to provide a kind of nuclear power plant reactor radioactive fission product treating apparatus for the deficiencies in the prior art, described treating apparatus body realizes and being tightly connected of fire-fighting system spray pipeline by external device, in time fire water can be introduced treating apparatus inside when breaking out of fire to put out a fire, sealing and the reliability of junction can be ensured simultaneously, reduce the probability released outside radgas, improve security, facilitate overhaul of the equipments operation simultaneously, be conducive to shortening the overhaul of the equipments time, raise the efficiency.
The utility model is achieved through the following technical solutions this object:
A kind of nuclear power plant reactor radioactive fission product treating apparatus, comprise treating apparatus body, also comprise the external device for being connected with fire-fighting system spray pipeline, described external device comprises the inner flange and outside flange that cooperatively interact and connect, described inner flange is fixed on inside the wallboard for the treatment of apparatus body, outside flange is fixed on outside the wallboard for the treatment of apparatus body, the wallboard of described treating apparatus body offers the through hole of through connection inner flange passage and outside flange passage.
Further, between described inner flange and wallboard, between outside flange and wallboard, flange seal ring is provided with.
Wherein, described inner flange is fixed on wallboard by Hanging bolt, and the front end of described Hanging bolt is tightened in the bolt bore of inner flange through the bolt hole on wallboard.
As preferred scheme, described bolt bore is positioned at the inside of inner flange, is in non-through state.
As preferred scheme, the quantity of described Hanging bolt is two, is arranged at the both sides of inner flange respectively.
Wherein, described outside flange is provided with the groove for accommodating Hanging bolt end.
Wherein, described outside flange is fixedly connected with inner flange by some full silk bolts.
Wherein, one end of described full silk bolt is fixedly connected with inner flange, and the other end of full silk bolt stretches out outside wallboard through the bolt hole on wallboard, and the full silk bolt stretched out is inserted the bolt hole of outside flange and fixed by nut.
As preferred scheme, the quantity of described full silk bolt is four, and four full silk bolts are uniform to be welded on inner flange.
Further, described inner flange access portal place is also provided with the spray adapter assembly for connecting waterfog head.
Relative to prior art, the beneficial effects of the utility model are:
Nuclear power plant reactor radioactive fission product treating apparatus of the present utility model, comprise treating apparatus body, also comprise the external device for being connected with fire-fighting system spray pipeline, described external device comprises the inner flange and outside flange that cooperatively interact and connect, described inner flange is fixed on inside the wallboard for the treatment of apparatus body, outside flange is fixed on outside the wallboard for the treatment of apparatus body, the wallboard of described treating apparatus body offers the through hole of through connection inner flange passage and outside flange passage, treating apparatus body of the present utility model realizes and being tightly connected of fire-fighting system spray pipeline by described external device, in time fire water can be introduced treating apparatus body interior when breaking out of fire to put out a fire, sealing and the reliability of junction can be ensured simultaneously, reduce the probability released outside radgas, improve security, facilitate overhaul of the equipments operation in addition, in the process of maintenance, internally convenient, outside flange is dismantled, simultaneously inner flange can not come off treating apparatus body interior, thus do not need to extract inner filter core in the process of maintenance, the increase of the nuclear waste avoiding more renew cartridge to bring, be conducive to shortening the overhaul of the equipments time, use manpower and material resources sparingly, raise the efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the external device of embodiment 1.
Fig. 2 is the structural representation of the external device of embodiment 2.
Fig. 3 is the application schematic diagram of nuclear power plant reactor radioactive fission product treating apparatus of the present utility model.
In figure: 1-external device 2-inner flange
3-outside flange 4-wallboard
5-through hole 6-flange seal ring
7-Hanging bolt 8-bolt bore
The full silk bolt of 9-groove 10-
11-nut 12-sprays adapter assembly
13-treating apparatus body 14-fire-fighting system
15-inlet pipeline 16-water return pipeline.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in detail.
Embodiment 1.
As shown in Figure 1, the external device 1 of the present embodiment comprises the inner flange 2 and outside flange 3 that cooperatively interact and connect, described inner flange 2 is fixed on inside the wallboard 4 for the treatment of apparatus body 13, outside flange 3 is fixed on outside the wallboard 4 for the treatment of apparatus body 13, the wallboard 4 of described treating apparatus body 13 offers the through hole 5 of through connection inner flange 2 passage and outside flange 3 passage.
Being tightly connected of the spray pipeline for the treatment of apparatus body 13 and fire-fighting system 14 can be realized easily by the external device 1 of the present embodiment, in time fire water can be introduced treating apparatus body 13 inside when breaking out of fire to put out a fire, sealing and the reliability of junction can be ensured simultaneously, reduce the probability released outside radgas, improve the operational reliability of nuclear island ventilating system treating apparatus body 13, facilitate overhaul of the equipments operation in addition, in the process of maintenance, can to inner flange 2, outside flange 3 carries out for convenience detach, inner flange 2 can not come off and fall into treating apparatus body 13 inside simultaneously, thus do not need to extract inner filter core in the process of maintenance, the increase of the nuclear waste avoiding more renew cartridge to bring, be conducive to shortening the overhaul of the equipments time, use manpower and material resources sparingly, raise the efficiency.
Further, between described inner flange 2 and wallboard 4, between outside flange 3 and wallboard 4, be provided with flange seal ring 6, ensure reliability and the sealing of junction, effectively reduce the probability released outside radgas.
Wherein, described inner flange 2 is fixed on wallboard 4 by Hanging bolt 7, the front end of described Hanging bolt 7 is tightened in the bolt bore 8 of inner flange 2 through the bolt hole on wallboard 4, independently fixation is taked for inner flange 2, in maintenance unloading process, inner flange 2 also can not come off and fall into treating apparatus body 13 inside, thus do not need to extract inner filter core in the process of maintenance, the increase of the nuclear waste avoiding more renew cartridge to bring, be conducive to shortening the overhaul of the equipments time, use manpower and material resources sparingly, raise the efficiency.
As preferred scheme, described bolt bore 8 is positioned at the inside of inner flange 2, is in non-through state, ensures the integrality of inner flange 2 self and sealing property, avoids because running through the generation releasing event outside the radiation that causes.
As preferred scheme, the quantity of described Hanging bolt 7 is two, is arranged at the both sides of inner flange 2 respectively, symmetrical fixing Hanging bolt 7.
Wherein, described outside flange 3 is provided with the groove 9 for accommodating Hanging bolt 7 end, ensure that the joint face of outside flange 3 and wallboard 4 closed seamless gap are fitted, improve the sealing of clamping flange, practicality is stronger.
Wherein, described outside flange 3 is fixedly connected with inner flange 2 by some full silk bolts 10, make inner flange 2, outside flange 3 fit tightly on wallboard 4 from the both sides of wallboard 4 respectively, the quantity of described full silk bolt 10 is preferably four, and four full silk bolts 10 are uniform to be welded on inner flange 2.
Wherein, one end of described full silk bolt 10 is fixedly connected with inner flange 2, the other end of full silk bolt 10 stretches out outside wallboard 4 through the bolt hole on wallboard 4, the full silk bolt 10 stretched out is inserted the bolt hole of outside flange 3 and is tightened by nut 11, nut 11 junction arranges rubber sheet gasket, ensures sealing.
Embodiment 2.
As shown in Figure 2, the present embodiment is with the difference of embodiment 1: described inner flange 2 access portal place is also provided with the spray adapter assembly 12 for being connected waterfog head, by described spray adapter assembly 12, waterfog head can be connected on inner flange 2, improve the area for the treatment of apparatus body 13 inside water spray, improve extinguishing effect during treating apparatus body 13 breaking out of fire.
Concrete, as shown in Figure 3, in the process that reality uses, can by the external device 1 of the external device 1 of embodiment 1 and embodiment 2 with the use of, be individually fixed on the wallboard 4 for the treatment of apparatus body 13, the external device 1 of embodiment 2 is connected with the inlet pipeline 15 of fire-fighting system 14, and the external device 1 of embodiment 1 is connected with water return pipeline 16, for the fire water in treating apparatus body 13 being exported.
The above embodiment only have expressed some embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (10)

1. a nuclear power plant reactor radioactive fission product treating apparatus, comprise treating apparatus body, it is characterized in that: also comprise the external device for being connected with fire-fighting system spray pipeline, described external device comprises the inner flange and outside flange that cooperatively interact and connect, described inner flange is fixed on inside the wallboard for the treatment of apparatus body, outside flange is fixed on outside the wallboard for the treatment of apparatus body, the wallboard of described treating apparatus body offers the through hole of through connection inner flange passage and outside flange passage.
2. nuclear power plant reactor radioactive fission product treating apparatus according to claim 1, is characterized in that: between described inner flange and wallboard, be provided with flange seal ring between outside flange and wallboard.
3. nuclear power plant reactor radioactive fission product treating apparatus according to claim 1, it is characterized in that: described inner flange is fixed on wallboard by Hanging bolt, the front end of described Hanging bolt is tightened in the bolt bore of inner flange through the bolt hole on wallboard.
4. nuclear power plant reactor radioactive fission product treating apparatus according to claim 3, is characterized in that: described bolt bore is positioned at the inside of inner flange, is in non-through state.
5. nuclear power plant reactor radioactive fission product treating apparatus according to claim 3, is characterized in that: the quantity of described Hanging bolt is two, is arranged at the both sides of inner flange respectively.
6. nuclear power plant reactor radioactive fission product treating apparatus according to claim 3, is characterized in that: described outside flange is provided with the groove for accommodating Hanging bolt end.
7. nuclear power plant reactor radioactive fission product treating apparatus according to claim 1, is characterized in that: described outside flange is fixedly connected with inner flange by some full silk bolts.
8. nuclear power plant reactor radioactive fission product treating apparatus according to claim 7, it is characterized in that: one end of described full silk bolt is fixedly connected with inner flange, the other end of full silk bolt stretches out outside wallboard through the bolt hole on wallboard, and the full silk bolt stretched out is inserted the bolt hole of outside flange and fixed by nut.
9. nuclear power plant reactor radioactive fission product treating apparatus according to claim 7, is characterized in that: the quantity of described full silk bolt is four, and four full silk bolts are uniform to be welded on inner flange.
10. the nuclear power plant reactor radioactive fission product treating apparatus according to claim 1-9 any one, is characterized in that: described inner flange access portal place is also provided with the spray adapter assembly for connecting waterfog head.
CN201520869633.6U 2015-11-03 2015-11-03 Nuclear power station reactor radioactivity fission product processing apparatus Active CN205104247U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520869633.6U CN205104247U (en) 2015-11-03 2015-11-03 Nuclear power station reactor radioactivity fission product processing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520869633.6U CN205104247U (en) 2015-11-03 2015-11-03 Nuclear power station reactor radioactivity fission product processing apparatus

Publications (1)

Publication Number Publication Date
CN205104247U true CN205104247U (en) 2016-03-23

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108262715A (en) * 2016-12-30 2018-07-10 核动力运行研究所 A kind of localization method for being used to install high temperature gas cooled reactor hot gas conduit flange bolt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108262715A (en) * 2016-12-30 2018-07-10 核动力运行研究所 A kind of localization method for being used to install high temperature gas cooled reactor hot gas conduit flange bolt
CN108262715B (en) * 2016-12-30 2019-12-20 核动力运行研究所 Positioning method for installing flange bolt of hot gas guide pipe of high-temperature gas cooled reactor

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