CN207180958U - The reverse pressure device of bellows safety valve - Google Patents
The reverse pressure device of bellows safety valve Download PDFInfo
- Publication number
- CN207180958U CN207180958U CN201721106748.5U CN201721106748U CN207180958U CN 207180958 U CN207180958 U CN 207180958U CN 201721106748 U CN201721106748 U CN 201721106748U CN 207180958 U CN207180958 U CN 207180958U
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- China
- Prior art keywords
- safety valve
- pressing plate
- sealing
- plug
- bellows
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Abstract
The utility model discloses a kind of reverse pressure device of bellows safety valve, including sealing-plug, pipeline, La Ma and pressing plate；The pipeline connects on sealing-plug with sealing-plug；The sealing-plug plug is in the import of the bellows safety valve；The right flank of the pressing plate has a projection；There is a passage among the pressing plate；The passage right-hand member is extended in projection；There is a fast interface connected with passage on the raised side；There are some concentric circle shape grooves on the left surface of the pressing plate；Sealing ring is provided with the groove；The pressing plate is pressed on the outlet(discharge) flange of the bellows safety valve by the drawing horse.The utility model is practical and convenient, simple to operate；And it can intuitively observe whether safety valve has leakage.
Description
Technical field
Detector for safety valve technical field is the utility model is related to, more particularly to a kind of bellows safety valve is reversely suppressed
Device.
Background technology
According to laws and regulations requirement, safety valve half a year or 1 year need to carry out a pressure setting and seal tightness test, to ensure to pacify
Full valve can realize predetermined function.But micro- of valve only short time during due to normal offline verification, valve can not be examined whether
In the presence of leakage defect, bellows integrality can not be also judged.The safety valve used for primary Ioops, if with active medium
Leakage, serious influence can be all brought for unit safety and equipment operation, so conventional offline verification obviously can not meet
It is required that a kind of new detection mode checking bellows and other junctions need to be used with the presence or absence of leakage
Such as EJNSJB0080S bellows safety valves welding bellows between flap and guide sleeve, to realize radioactivity
The purpose that medium does not leak outside, if penetrability defect occurs in bellows, even if visual inspection also is difficult to accurately find after disintegrating, if making
Then required a great deal of time with radiographic inspection, have a strong impact on repair schedule.
Utility model content
The purpose of this utility model is to solve shortcoming present in prior art, and the bellows safety valve proposed is anti-
To pressure device.
To achieve these goals, the utility model employs following technical scheme：
The reverse pressure device of bellows safety valve, including sealing-plug, pipeline, La Ma and pressing plate；The pipeline is located at sealing
Beyond the Great Wall, and with sealing-plug connect；The sealing-plug plug is in the import of the bellows safety valve；The right side mask of the pressing plate
There is a projection；There is a passage among the pressing plate；The passage right-hand member is extended in projection；Have on the raised side
There is a fast interface connected with passage；There are some concentric circle shape grooves on the left surface of the pressing plate；It is described recessed
Sealing ring is provided with groove；The pressing plate is pressed on the outlet(discharge) flange of the bellows safety valve by the drawing horse.
Preferably, the drawing horse is hydraulic pressure Three-claw pull-horse.
Preferably, the drawing horse is Three-claw pull-horse；The raised right side has the confession screw rod for drawing horse
The mounting groove assigned.
Preferably, the bottom land of the mounting groove is rotatably connected to a horizontally disposed rotating shaft by bearing；The rotating shaft
Right-hand member be fixedly connected with a rotating disk.
Than prior art, the utility model has the advantage of：
The utility model novelty simple in construction, it is easy to detect, it is simple to operate；Only needed during use by drawing horse by pressing plate pressure
Tightly on the outlet(discharge) flange of bellows safety valve, and the sealing-plug with pipeline is clogged to the import of bellows safety valve；Again will
The other end of pipeline is introduced in water receptacle, it is only necessary to a Pneumatic compression device is connected on the fast interface of projection, so as to
So that air pressure enters in bellows safety valve from the outlet(discharge) flange of bellows safety valve；Only need to observe in water receptacle whether have gas
Bubble out and existing can determine whether bellows safety valve leaks air situation；Then show gas leakage if there is bubble, it is on the contrary then show
Bellows safety valve sealing is good；Judge that the air-tightness of bellows safety valve is straight by the mode that whether produces for observing bubble
See, it is not necessary to which technical professional can also operate.And during the utility model by way of drawing horse to compress, so as to side
Just pressing plate is installed on safety valve to be detected by Quick labor-saving.
Brief description of the drawings
Overall structure diagram when Fig. 1 is work of the present utility model；
Fig. 2 is the part-structure schematic diagram of the utility model cylinder；
Fig. 3 is the enlarged drawing in A portions in Fig. 2；
Fig. 4 is the left view of pressing plate；
Fig. 5 is the main view sectional view of pressing plate.
In figure：1st, safety valve；2nd, sealing-plug；3rd, pipeline；4th, pressing plate；5th, it is raised；6th, horse is drawn；7th, passage；8th, fast interface；
9th, mounting groove；10th, groove；11st, sealing ring；12nd, rotating shaft；13rd, rotating disk；101st, import；102nd, outlet(discharge) flange.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.
Shown in reference picture 1-5, a kind of 1 reverse pressure device of bellows safety valve described in the utility model, it is characterised in that：
Including sealing-plug 2, pipeline 3, draw horse 6 and pressing plate 4；Pipeline 3 connects on sealing-plug 2 with sealing-plug 2；Sealing-plug 2 fill in
In the import 14 of bellows safety valve 1；The right flank of pressing plate 4 has a projection 5；There is a passage 7 among pressing plate 4；It is logical
The right-hand member of road 7 is extended in projection 5；There is a fast interface 8 connected with passage 7 on raised 5 sides；The left surface of pressing plate 4
It is upper that there are some concentric circle shape grooves 10；Sealing ring 11 is provided with groove 10；By drawing horse 6 that pressing plate 4 is pressed on into ripple
On the outlet(discharge) flange 15 of pipe safety valve 1.
Drawing horse 6 is hydraulic pressure Three-claw pull-horse 6.Hydraulic pressure Three-claw pull-horse 6 can reduce hand labor.
Drawing horse 6 is Three-claw pull-horse 6；The right side of projection 5 has the mounting groove 9 that a screw rod for drawing horse 6 is assigned.It is general
Logical Three-claw pull-horse 6 is the screw rod that horse 6 is drawn by rotating, and by the rotation of screw rod, drives what pulling claw tensed, so
The right-hand member of projection 5, which sets a mounting groove 9, can be used for assigning the screw rod for drawing horse 6, so as to avoid drawing horse 6 when tensing
Screw rod shifts.
The bottom land of mounting groove 9 is rotatably connected to a horizontally disposed rotating shaft 12 by bearing；The right-hand member of rotating shaft 12 is fixed
It is connected with a rotating disk 13.A rotating disk 13 is designed, can compress the screw rod of drawing horse 6 and directly be pressed onto rotating disk 13, so that
While rotating screw bar, rotating disk 13 can be driven to rotate together, so as to reduce resistance during screw rod rotation.
Operation principle：In use, first bellows safety valve 1 is installed on monitor station；Bellows is clogged with sealing-plug 2 to pacify
The import 14 of full valve 1；And the pipeline 3 on sealing-plug 2 is guided in a container equipped with water；Again by the left side of pressing plate 4 with
The outlet(discharge) flange 15 of bellows safety valve 1 is aligned, and with draw horse 6 pressing plate 4 and outlet(discharge) flange 15 are pressed to together, setting it is close
Seal 11 can play a sealing function；Multiple sealing rings 11 are set, pressing plate 4 can be made to be adapted to different size of outlet
Flange 15.Installation terminate after, projection 5 fast interface 8 on connect a Pneumatic compression device, toward passage 7 in inflating pressure,
So as to which gases at high pressure can be entered in bellows safety valve 1 by the outlet of bellows safety valve 1；Bellows safety valve under normal circumstances
1 valve body is similar to a check valve, and gas enters from import 14, exported out；Be now according to reverse thinking, gases at high pressure from
Export into as long as the import 14 of safety valve 1, which goes out no gas leakage, then shows that air-tightness is good；Observe the import 14 of safety valve 1
Whether have gas effusion can directly observe whether have bubble generation in water receptacle, if bubble produces, then show from outlet
The gas of entrance has been flowed in import 14, shows that leakage situation occurs in valve inner.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (4)
1. the reverse pressure device of bellows safety valve, it is characterised in that：Including sealing-plug（2）, pipeline（3）, draw horse（6）And pressing plate
（4）；The pipeline（3）Located at sealing-plug（2）On, and and sealing-plug（2）Connection；The sealing-plug（2）Fill in the bellows
Safety valve（1）Import（14）On；The pressing plate（4）Right flank there is a projection（5）；The pressing plate（4）Centre has
One passage（7）；The passage（7）Right-hand member extends to projection（5）It is interior；The projection（5）There is one and passage on side（7）
The fast interface of connection（8）；The pressing plate（4）Left surface on there are some concentric circle shape grooves（10）；The groove
（10）It is interior to be provided with sealing ring（11）；Pass through the drawing horse（6）By the pressing plate（4）It is pressed on the bellows safety valve（1）'s
Outlet(discharge) flange（15）On.
2. the reverse pressure device of bellows safety valve according to claim 1, it is characterised in that：The drawing horse（6）For liquid
Press Three-claw pull-horse（6）.
3. the reverse pressure device of bellows safety valve according to claim 1, it is characterised in that：The drawing horse（6）For three
Pawl draws horse（6）；The projection（5）Right side there is the confession drawing horse（6）The mounting groove assigned of screw rod（9）.
4. the reverse pressure device of bellows safety valve according to claim 3, it is characterised in that：The mounting groove（9）'s
Bottom land is rotatably connected to a horizontally disposed rotating shaft by bearing（12）；The rotating shaft（12）Right-hand member be fixedly connected with one
Rotating disk（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721106748.5U CN207180958U (en) | 2017-08-31 | 2017-08-31 | The reverse pressure device of bellows safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721106748.5U CN207180958U (en) | 2017-08-31 | 2017-08-31 | The reverse pressure device of bellows safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207180958U true CN207180958U (en) | 2018-04-03 |
Family
ID=61742075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721106748.5U Active CN207180958U (en) | 2017-08-31 | 2017-08-31 | The reverse pressure device of bellows safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207180958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815912A (en) * | 2019-03-14 | 2020-02-21 | 杭州鼎好新材料有限公司 | Tightening device of plastic pipe |
| CN112161745A (en) * | 2020-08-18 | 2021-01-01 | 平阴鲁西装备科技有限公司 | Pressing equipment and method for measuring tube of magnetic turning plate liquid level meter |
-
2017
- 2017-08-31 CN CN201721106748.5U patent/CN207180958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815912A (en) * | 2019-03-14 | 2020-02-21 | 杭州鼎好新材料有限公司 | Tightening device of plastic pipe |
| CN112161745A (en) * | 2020-08-18 | 2021-01-01 | 平阴鲁西装备科技有限公司 | Pressing equipment and method for measuring tube of magnetic turning plate liquid level meter |
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| GR01 | Patent grant |