CN206958335U - Enclosed type electric apparatus Special Blasting sheet devices - Google Patents
Enclosed type electric apparatus Special Blasting sheet devices Download PDFInfo
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- CN206958335U CN206958335U CN201720712773.1U CN201720712773U CN206958335U CN 206958335 U CN206958335 U CN 206958335U CN 201720712773 U CN201720712773 U CN 201720712773U CN 206958335 U CN206958335 U CN 206958335U
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- rupture disk
- type electric
- electric apparatus
- enclosed type
- groove
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Abstract
A kind of enclosed type electric apparatus Special Blasting sheet devices, including rupture disk, upper holding ring and lower holding ring are the utility model is related to, rupture disk and the welding of upper and lower holding ring are integral, and rupture disk encircles shaping back concave surface side and sets weak groove to form antiarch unstability trough of belt rupture disk in advance；Locate weak groove deep, that root is shallow centered on described weak groove.When the utility model can guarantee that diaphragm by positive pressure, moment is completely severed opening, rapid pressure release.Also diaphragm is can guarantee that when by negative sense vacuum pressure, ne-leakage at cutting, solves the problems, such as that the inflation of enclosed type electric apparatus cabinet is unable to pressurize.
Description
Technical field
It the utility model is related to a kind of antiarch trough of belt monolithic devices blasting piece device, more particularly to the enclosed type electric apparatus of power industry
Special Blasting sheet devices.
Background technology
There is special requirement for the pressure relief device used on the enclosed type electric apparatus of power industry：Thermal shock can be born
Effect, ensure that perfect vacuum sealing, burst pressure are stablized, pressure release fully opened in very short time and to have the very long use longevity
Life.Antiarch trough of belt monolithic devices blasting piece device anti-fatigue ability is strong, and stable performance, explosion is without fragment, it is ensured that perfect vacuum is close
Envelope, moment full open during equipment superpressure, meet the particular/special requirement of power industry enclosed type electric apparatus pressure relief device.
Conventional antiarch band groove profile blasting piece device of the prior art is to be used after rupture disk assembles with supporting clamper, is matched somebody with somebody
Seal line is designed with set gripper face, seal line can only ensure the requirement of rupture disk conventional seals, it is impossible to meet completely true
Sky sealing applying working condition.When such as installing incorrect, rupture disk shifts to an earlier date unstability, arcuate surface is irregularly overturn, it is impossible to is broken at cutting
Opening is split, pressure can not release in equipment, cause and its serious danger.It is another as shown in figure 1, rupture disk arch concavity side it is thin
Weak groove is identical from the center to root groove depth, and this form explosion opening effect is bad, and easily there is leak source weak groove root, causes to close
The problem of Electric Appliance Cabinet inflation is unable to pressurize.
Utility model content
The utility model is directed to above-mentioned problems of the prior art, there is provided a kind of enclosed type electric apparatus Special Blasting is on chip
Put, solve the problems, such as that demolition effect is undesirable in the prior art, easily there is leak source weak groove root.
The technical solution of the utility model is as follows：
Enclosed type electric apparatus Special Blasting sheet devices, including rupture disk, upper holding ring and lower holding ring, rupture disk and upper and lower folder
Held in ring welding is integral, and rupture disk encircles shaping back concave surface side and sets weak groove to form antiarch unstability trough of belt rupture disk in advance；Described
Locate weak groove deep, that root is shallow centered on weak groove.
Described rupture disk is individual layer diaphragm.
Described weak groove is cross.
Weak groove location and rupture disk arcuate surface form and position tolerance concentricity are weakness within 0.1mm on described rupture disk
Groove depth deviation is ± 0.01mm.
Groove is designed with the outside of the clamping face of described upper and lower holding ring.
The utility model has the advantages of as follows：
1st, the utility model diaphragm is with being overall structure after the welding of upper and lower holding ring, guarantee perfect vacuum sealing No leakage,
Facilitate user installation and change, avoid improper explosion in therefore cause influence work.
2nd, due to using the weak groove antiarch type structure deep at center, root is shallow, being held before such a form rupture disk explosion
What is received is compression stress, and when the mechanism of explosion reaches buckling pressure equivalent to the compression of trough of belt shell, unstability upset is broken along groove simultaneously
Split opening.Even if close to buckling pressure, during operation stress suffered by rupture disk still far below material yield limit, also in elastic model
Interior operation is enclosed, there is extremely excellent anti-fatigue performance, the utility model can meet the spy of power industry enclosed type electric apparatus pressure relief device completely
It is different to require.
3rd, upper and lower holding ring is being designed with groove with diaphragm weld, is carried out automatically using not filler mode during welding
Melting welding, ensure to weld uniform and uniformity.
Brief description of the drawings
Fig. 1 is the structural representation of prior art antiarch rupture disk cutting.
Fig. 2 is the structural representation of the utility model rupture disk cutting.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is external structure schematic diagram of the present utility model.
In figure, 1, weak groove, 2, upper holding ring, 3, rupture disk, 4, lower holding ring, 5, groove, 101, weak groove center,
102nd, weak groove root.
Embodiment
Hereinafter, referring to the drawings, the utility model is illustrated in more detail in conjunction with the embodiments.
Embodiment
As in Figure 2-4, enclosed type electric apparatus Special Blasting sheet devices, including rupture disk 3, upper holding ring 2 and lower holding ring 4,
Rupture disk and the welding of upper and lower holding ring are integral, and described rupture disk is individual layer diaphragm, and rupture disk encircles shaping back concave surface side and set in advance
Put cross weakness groove and form antiarch unstability trough of belt rupture disk；Locate weak groove deep, that root is shallow centered on described weak groove.
Weak groove center 101 of the present utility model is deep, and weak groove root 102 is shallow, weak groove location and explosion on rupture disk
Piece arcuate surface form and position tolerance concentricity is within 0.1mm, and weak groove depth deviation be ± 0.01mm, is broken along groove rule during explosion
Split, no fragment.
The utility model uses the shallow weak groove in depth, root such as at Fig. 2 centers, that is, when can guarantee that diaphragm by positive pressure,
Moment is completely severed opening, rapid pressure release.Also it can guarantee that diaphragm when by negative sense vacuum pressure, ne-leakage at cutting, solves
The inflation of enclosed type electric apparatus cabinet is unable to pressurize problem.Diaphragm cutting process when, have stress generation, by be heat-treated and it is secondary into
Shape, ensure the uniformity of burst pressure.
Carried out as shown in figure 3, be designed with groove on the outside of the clamping face of upper and lower holding ring, during welding using not filler mode
Full-automatic melting welding, ensure to weld uniform and uniformity, vacuum leak hunting inspection is carried out after welding, ensure sealing, meet that user makes
It is not more than for 1%/year with slip.
The technical principle described above for being specific embodiment of the utility model and being used, it is any to be based on the utility model
Equivalent exchange on the basis of technical scheme, is belonged within the scope of protection of the utility model.
Claims (5)
1. enclosed type electric apparatus Special Blasting sheet devices, including rupture disk, upper holding ring and lower holding ring, rupture disk and upper and lower clamping
Boxing is connected into entirety, and rupture disk encircles shaping back concave surface side and sets weak groove to form antiarch unstability trough of belt rupture disk in advance；Its feature exists
Locate weak groove deep, that root is shallow centered on described weak groove.
2. enclosed type electric apparatus Special Blasting sheet devices according to claim 1, it is characterised in that described rupture disk is individual layer
Diaphragm.
3. enclosed type electric apparatus Special Blasting sheet devices according to claim 1, it is characterised in that described weak groove is cross
Shape.
4. enclosed type electric apparatus Special Blasting sheet devices according to claim 1, it is characterised in that weak on described rupture disk
Groove location and rupture disk arcuate surface form and position tolerance concentricity are 0.1mm, and weak groove depth deviation is ± 0.01mm.
5. enclosed type electric apparatus Special Blasting sheet devices according to claim 1, it is characterised in that described upper and lower holding ring
Groove is designed with the outside of clamping face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720712773.1U CN206958335U (en) | 2017-06-19 | 2017-06-19 | Enclosed type electric apparatus Special Blasting sheet devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720712773.1U CN206958335U (en) | 2017-06-19 | 2017-06-19 | Enclosed type electric apparatus Special Blasting sheet devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206958335U true CN206958335U (en) | 2018-02-02 |
Family
ID=61385845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720712773.1U Active CN206958335U (en) | 2017-06-19 | 2017-06-19 | Enclosed type electric apparatus Special Blasting sheet devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206958335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296793A (en) * | 2018-11-22 | 2019-02-01 | 沈阳航天新光集团有限公司 | Antiarch Notch blasting sheet devices with back pressure bracket |
-
2017
- 2017-06-19 CN CN201720712773.1U patent/CN206958335U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296793A (en) * | 2018-11-22 | 2019-02-01 | 沈阳航天新光集团有限公司 | Antiarch Notch blasting sheet devices with back pressure bracket |
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