CN204596435U - The cleaning systems that the PWR nuclear power plant installation and debugging stage is special and sampling instrument - Google Patents
The cleaning systems that the PWR nuclear power plant installation and debugging stage is special and sampling instrument Download PDFInfo
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- CN204596435U CN204596435U CN201520303343.5U CN201520303343U CN204596435U CN 204596435 U CN204596435 U CN 204596435U CN 201520303343 U CN201520303343 U CN 201520303343U CN 204596435 U CN204596435 U CN 204596435U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The utility model discloses special cleaning systems of a kind of PWR nuclear power plant installation and debugging stage and sampling instrument, it comprises flange, grip block, fastening assembly and short tube, and the fracture of flange and border valve to be connected is suitable; A joint face of flange is fitted in the fracture site of border valve, and another joint face is fixedly connected with short tube; Grip block blocks the mounted pipeline in valve side, border, and fastening assembly is connected between flange and grip block, utilizes fastening force by the incision position of flange seal at border valve.Compared with prior art, the cleaning systems that the utility model PWR nuclear power plant installation and debugging stage is special and sampling instrument install flange and short tube additional in the fracture side of border valve, and ensure the contact force between flange and border valve by the tension of fastening assembly, ensure that the sealing of junction, efficiently solve the interim connectivity problem of temporary system cleaning and sampling line and border valve, facilitate cleaning and the sampling of system equipment and pipeline.
Description
Technical field
The utility model belongs to PWR nuclear power plant installation and debugging field, and more particularly, the utility model relates to special cleaning systems of a kind of PWR nuclear power plant installation and debugging stage and sampling instrument.
Background technology
In order to meet the needs that nuclear power plant project is built, the installation and debugging of nuclear power plant are all subsystems, subregion, segmentation are carried out; Accordingly, the cleaning of system and sampling are also subsystems, subregion, segmentation carry out.In cleaning systems process, be generally the isolation of implementation system border, border with valve.
Cleaning systems method generally has the unidirectional cleaning of direct current, circulation flushing, chemical cleaning and manual scouring etc.Wherein, for 2 cun and following pipeline, mostly is adopt temporary system device from outside SED system (nuclear island demineralized water distribution system, Nuclear Island Demineralized Water Distribution System) or SER system (conventional island demineralized water distribution system, Conventional Island Demineralized WaterDistribution System) introduce water source, carry out the unidirectional cleaning of direct current or circulation flushing and sample.
But when using temporary system cleaning device to clean system equipment and pipeline and sample, border valve directly cannot be connected with temporary system cleaning device.The method of current head it off is at the corresponding interim short tube of the border valve fracture site welding of formal scavenger circuit, connects temporary system cleaning device carry out cleaning and sampling by short tube; Complete Deng cleaning, sample qualified after, more interim short tube to be cut away, finally can weld formal pipeline.But, in practical operation, same section of formal pipeline may need repeatedly clean and sample because of technological transformation or the equipment reason such as to remodel, in this case, just need to carry out multiple welding and cutting to same border valve, not only manpower, material cost are high, and easily cause that valve interface position material deformation, hardness reduce, adhesion not and the problem such as internal stress damage, when causing formally welding, weld seam is defective, and valve even can be caused to damage.
In view of this, necessaryly a kind of easy disassembling is provided and cleaning systems and the sampling instrument of border valve can not be damaged.
Utility model content
The purpose of this utility model is: provide a kind of easy disassembling and can not damage cleaning systems and the sampling instrument of border valve, being connected to realize temporary system cleaning device with the quick nondestructive of valve.
In order to realize above-mentioned utility model object, the utility model provides special cleaning systems of a kind of PWR nuclear power plant installation and debugging stage and sampling instrument, it comprises flange, grip block, fastening assembly and short tube, and the fracture of flange and border valve to be connected is suitable; A joint face of flange is fitted in the fracture site of border valve, and another joint face is fixedly connected with short tube; Grip block blocks the mounted pipeline in valve side, border, and fastening assembly is connected between flange and grip block, utilizes fastening force by the incision position of flange seal at border valve.
The one of the cleaning systems special as the utility model PWR nuclear power plant installation and debugging stage and sampling instrument is improved, and is also provided with gasket seal between the fracture site of described flange and border valve.
The one of the cleaning systems special as the utility model PWR nuclear power plant installation and debugging stage and sampling instrument is improved, and described fastening assembly comprises screw rod, nut and pad, and flange and grip block offer the perforation suitable with screw rod respectively.
The one of the cleaning systems special as the utility model PWR nuclear power plant installation and debugging stage and sampling instrument is improved, and described grip block is close to border valve and the connector place of installing pipeline.
The one of the cleaning systems special as the utility model PWR nuclear power plant installation and debugging stage and sampling instrument is improved, and described grip block is U-board.
The one of the cleaning systems special as the utility model PWR nuclear power plant installation and debugging stage and sampling instrument is improved, and described grip block is two semi-circular plates.
The one of the cleaning systems special as the utility model PWR nuclear power plant installation and debugging stage and sampling instrument is improved, the caliber of described short tube and the specification of flange suitable, short tube is connected with flange welding.
The one of the cleaning systems special as the utility model PWR nuclear power plant installation and debugging stage and sampling instrument is improved, and described short tube is hickey or taper processing mouth away from one end of flange.
Compared with prior art, the cleaning systems that the utility model PWR nuclear power plant installation and debugging stage is special and sampling instrument install flange and short tube additional in the fracture side of border valve, and ensure the contact force between flange and border valve by the tension of fastening assembly, ensure that the sealing of junction, efficiently solve the interim connectivity problem of temporary system cleaning and sampling line and border valve, facilitate cleaning and the sampling of system equipment and pipeline.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the cleaning systems special to the utility model PWR nuclear power plant installation and debugging stage and sampling instrument and beneficial effect thereof are described in detail.
Fig. 1 is the structural representation of the utility model PWR nuclear power plant installation and debugging stage special cleaning systems and sampling instrument.
Fig. 2 is the using state schematic diagram of the utility model PWR nuclear power plant installation and debugging stage special cleaning systems and sampling instrument.
Embodiment
In order to make the purpose of this utility model, technical scheme and Advantageous Effects thereof more clear, below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.Should be understood that, the embodiment described in this instructions is only used to explain the utility model, is not intended to limit the utility model.
Refer to Fig. 1 and Fig. 2, the cleaning systems that the utility model PWR nuclear power plant installation and debugging stage is special and sampling instrument comprise flange 10, grip block 20, fastening assembly and short tube 40.
The caliber of flange 10 and the fracture caliber of border valve 60 to be connected suitable.
Grip block 20 is U-board, and it is processed by the blind flange or stiffening plate with flange 10 equivalent specifications.Grip block 20 offers the perforation corresponding with the perforation of flange 10.
Fastening assembly comprises screw rod 30, nut 32 and pad 34.The diameter of screw rod 30 and the hole dimension of flange 10 suitable, length is greater than the distance between the fracture of border valve 60 and connector.Fastening assembly passes through the perforation of flange 10 and grip block 20, together with being movably connected with grip block 20 by flange 10.
The caliber of short tube 40 and the specification of flange 10 suitable, its one end is straight weld port, the other end be hickey or taper processing mouth.Wherein, straight weld port is directly welded on the joint face of flange 10 grip block 20 dorsad.
During use, the grip block 20 of U-shaped blocked the formal cleaning pipeline 70 of border valve 60 side and be close on border valve 60, flange 10 is connected to valve fracture site, and gasket seal 62 is added between flange 10 and valve fracture, again nut 32 is tightened, cleaning systems and sampling instrument can be connected on border valve 60.Now, only need cleaning or sampling line be temporarily connected on short tube 40, just can clean accordingly or sample.The external connection end of short tube 40 makes the reason of hickey or taper processing mouth, is conveniently is connected with hickey on the one hand, be on the other hand in order to be connected with plastic tube need to carry out fastening with clip time, can friction force be increased, avoid leakage.
It is be fixed on the mounted formal cleaning pipeline 70 of border valve 60 for the ease of screens that grip block 20 is made into U-shaped, and therefore in other embodiments, grip block 20 can also make other shapes, such as two the semi-circular plates etc. engaged with each other.
Known by describing above, the cleaning systems that the utility model PWR nuclear power plant installation and debugging stage is special and sampling instrument install flange 10 and short tube 40 additional in the fracture side of border valve 60, and ensure flange 10, contact force between gasket seal 62 and border valve 60 by the tension of fastening assembly, ensure that the sealing of junction, efficiently solve the interim connectivity problem of temporary system cleaning and sampling line and border valve, facilitate cleaning and the sampling of system equipment and pipeline.
Compared with prior art, the cleaning systems that the utility model PWR nuclear power plant installation and debugging stage is special and sampling instrument not only have easy-to-dismount advantage, and to valve itself without any damage, also event of metalling run out unexpectedly can not be caused, effectively ensure that smooth cleaning and the sampling of system equipment and pipeline, positive role is served to engineering construction progress.
Understandable, the utility model according to the size etc. of the pressure rating of medium, valve and pipeline, can be selected the standard component such as supporting flange, pad of corresponding specification, can realize universalization, modularization and standardization.In addition, this instrument not to be only applicable in the PWR nuclear power plant installment and debugging stage temporarily to cleaning and the sampling of system equipment, pipeline, is equally applicable to the Other Engineering construction period temporarily to cleaning and the sampling of equipment and pipeline yet.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (8)
1. the cleaning systems that the PWR nuclear power plant installation and debugging stage is special and a sampling instrument, is characterized in that: comprise flange, grip block, fastening assembly and short tube, and the fracture of flange and border valve to be connected is suitable; A joint face of flange is fitted in the fracture site of border valve, and another joint face is fixedly connected with short tube; Grip block blocks the mounted pipeline in valve side, border, and fastening assembly is connected between flange and grip block, utilizes fastening force by the incision position of flange seal at border valve.
2. the cleaning systems that the PWR nuclear power plant installation and debugging stage according to claim 1 is special and sampling instrument, is characterized in that: be also provided with gasket seal between the fracture site of described flange and border valve.
3. the cleaning systems that the PWR nuclear power plant installation and debugging stage according to claim 1 is special and sampling instrument, it is characterized in that: described fastening assembly comprises screw rod, nut and pad, flange and grip block offer the perforation suitable with screw rod respectively.
4. the cleaning systems that the PWR nuclear power plant installation and debugging stage according to claim 1 is special and sampling instrument, is characterized in that: described grip block is close to border valve and the connector place of installing pipeline.
5. the cleaning systems that the PWR nuclear power plant installation and debugging stage according to claim 1 is special and sampling instrument, is characterized in that: described grip block is U-board.
6. the cleaning systems that the PWR nuclear power plant installation and debugging stage according to claim 1 is special and sampling instrument, is characterized in that: described grip block is two semi-circular plates.
7. the cleaning systems that the PWR nuclear power plant installation and debugging stage according to claim 1 is special and sampling instrument, is characterized in that: the caliber of described short tube and the specification of flange suitable, short tube is connected with flange welding.
8. the cleaning systems that the PWR nuclear power plant installation and debugging stage according to claim 1 is special and sampling instrument, is characterized in that: described short tube is hickey or taper processing mouth away from one end of flange.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520303343.5U CN204596435U (en) | 2015-05-12 | 2015-05-12 | The cleaning systems that the PWR nuclear power plant installation and debugging stage is special and sampling instrument |
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| CN201520303343.5U CN204596435U (en) | 2015-05-12 | 2015-05-12 | The cleaning systems that the PWR nuclear power plant installation and debugging stage is special and sampling instrument |
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| CN204596435U true CN204596435U (en) | 2015-08-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654771A (en) * | 2017-09-27 | 2018-02-02 | 中船黄埔文冲船舶有限公司 | A kind of high pressure resistant frock joint |
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2015
- 2015-05-12 CN CN201520303343.5U patent/CN204596435U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654771A (en) * | 2017-09-27 | 2018-02-02 | 中船黄埔文冲船舶有限公司 | A kind of high pressure resistant frock joint |
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