CN202812343U - Strong magnet pre-tightening anti-overpressure device - Google Patents
Strong magnet pre-tightening anti-overpressure device Download PDFInfo
- Publication number
- CN202812343U CN202812343U CN 201220431295 CN201220431295U CN202812343U CN 202812343 U CN202812343 U CN 202812343U CN 201220431295 CN201220431295 CN 201220431295 CN 201220431295 U CN201220431295 U CN 201220431295U CN 202812343 U CN202812343 U CN 202812343U
- Authority
- CN
- China
- Prior art keywords
- disk
- venting
- housing
- dust explosion
- shell body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a strong magnet pre-tightening anti-overpressure device capable of accurately controlling denotation and return pressure of a control system. The strong magnet pre-tightening anti-overpressure device comprises a shell body provided with an explosion venting channel inside. One end of the explosion venting channel is communicated with an explosion venting port at the side of the shell body. The other end of the explosion venting channel is communicated with an air inlet at the bottom of the shell body. Steps are arranged around the edge of the shell body. A door cover is movably arranged on the steps to block or communicate the explosion venting channel. A magnetic unit disk formed by a main magnetic disk and a vice magnetic disk is arranged on the top of the shell body. A through hole is arranged in the center of the main magnetic disk fixed with the shell body. The vice magnetic disk is fixedly connected with a door rod. The bottom end of the door rod penetrates through the through hole of the main magnetic disk and is fixedly connected with the door cover. A return spring is arranged between the door cover and the main magnetic disk. The strong magnet pre-tightening anti-overpressure device is simple in structure, capable of accurately adjusting and setting the denotation and the return pressure of the system, and good in practicability.
Description
Technical field
The utility model relates to a kind of bullet magnetic pretension overpressure prevention device that is applied to electric power, petrochemical industry.
Background technique
Air and gas system in electric power, the petrochemical industry superpressure situation might occur when operation troubles, this moment is release pressure rapidly, in order to avoid cause serious consequence.Traditional overpressure prevention device only relies on spring to control startup and return, is difficult to detonating and return pressure of accuracy-control system.
The model utility content
The purpose of this utility model be propose a kind of can accuracy-control system detonate and the bullet magnetic pretension overpressure prevention device of return pressure.
Bullet magnetic pretension overpressure prevention device of the present utility model comprises that inside is provided with the housing of venting of dust explosion passage, and an end of described venting of dust explosion passage communicates with the venting of dust explosion mouth of housing sidepiece, and the other end communicates with the suction port of housing bottom; The periphery of described suction port is provided with step, and movable frame is provided with door closure on the described step, with blocking-up or connection venting of dust explosion passage; Key is that the top of described housing is provided with the disk pack unit that is made of master disk and secondary disk adhesive; The middle part of described master disk is provided with through hole, and master disk and housing are fixed, and described secondary disk is fixedly connected with a door bar, and the bottom of described door bar is passed the through hole of master disk and is fixedly connected with door closure, is provided with return spring between described door closure and the master disk.
When the door closure top power upwards of bearing surpasses predetermined pressure, the door closure jack-up that can make progress, and the pressure of breakthrough return spring and the suction between master disk and the secondary disk, so that master disk and secondary magnetic disc separation, so that the venting of dust explosion passage between suction port and the venting of dust explosion mouth is unimpeded, so just can discharge over-pressure gas simultaneously; After over-pressure gas discharged, the top power that makes progress that door closure is suffered will diminish, and door closure can reset under the effect of the pressure of return spring and the suction between master disk and the secondary disk, with the venting of dust explosion carrier frequency channel break, recovered normal operation.By changing the magnet quantity in the disk pack unit, can regulate the suction between master disk and the secondary disk, and then can accuracy-control system detonate and return pressure.
Further, the top of described door bar is provided with dynamometer, sets and detection is detonated and return pressure with convenient.
Further, described venting of dust explosion passage is provided with the fire insulation net of being made by Stainless Steel Wire, the flame after detonating can be stoped in minimum zone, reduces the damage to surrounding devices, pipeline, cable and personnel.
Further, the bottom edge of described door closure and/or the end face of step are provided with seal ring, make door closure and system sealing tight.
Further, described housing is provided with hoisting ring, to make things convenient for the device transportation.
Bullet magnetic pretension overpressure prevention device of the present utility model is simple in structure, can accurately regulate with initialization system detonate and return pressure, have good practicability.
Description of drawings
Fig. 1 is the structural representation of bullet magnetic pretension overpressure prevention device of the present utility model.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail.
Embodiment 1:
As shown in Figure 1, the bullet magnetic pretension overpressure prevention device of present embodiment comprises that inside is provided with the housing 2 of venting of dust explosion passage 1, and an end of venting of dust explosion passage 1 communicates with the venting of dust explosion mouth 3 of housing sidepiece, and the other end communicates with the suction port 4 of housing 2 bottoms; The periphery of suction port 4 is provided with step 5, and movable frame is provided with door closure 6 on the step 5, with blocking-up or connection venting of dust explosion passage 1; The top of housing 2 is provided with the disk pack unit that is made of master disk 7 and 8 adhesives of secondary disk; The middle part of master disk 7 is provided with through hole, and master disk 7 is fixing with housing 2, and secondary disk 8 is fixedly connected with a door bar 9, and the bottom of door bar 9 is passed the through hole of master disk 7 and is fixedly connected with door closure 6, is provided with return spring 10 between door closure 6 and the master disk 7.
When the door closure 6 top power upwards of bearing surpasses predetermined pressure, door closure 6 is jack-up upwards, and the pressure of breakthrough return spring 10 and the suction between master disk 7 and the secondary disk 8, so that master disk 7 separates with secondary disk 8, so that the venting of dust explosion passage 1 between suction port 4 and the venting of dust explosion mouth 3 is unimpeded, so just can discharge over-pressure gas simultaneously; After over-pressure gas discharged, the door closure 6 suffered top power that make progress will diminish, and door closure 6 can reset under the effect of the pressure of return spring 10 and the suction between master disk 7 and the secondary disk 8, with 1 blocking-up of venting of dust explosion passage, recovers normal operation.By changing the magnet quantity in the disk pack unit, can regulate the suction between master disk 7 and the secondary disk 8, and then can accuracy-control system detonate and return pressure.
The top of door bar 9 is provided with dynamometer 11, sets and detection is detonated and return pressure with convenient.
Venting of dust explosion passage 1 is provided with the fire insulation net 12 of being made by Stainless Steel Wire, the flame after detonating can be stoped in minimum zone, reduces the damage to surrounding devices, pipeline, cable and personnel.
The bottom edge of door closure 6 is provided with seal ring 13, makes door closure and system sealing tight.
Claims (5)
1. one kind plays magnetic pretension overpressure prevention device, comprises that inside is provided with the housing of venting of dust explosion passage, and an end of described venting of dust explosion passage communicates with the venting of dust explosion mouth of housing sidepiece, and the other end communicates with the suction port of housing bottom; The periphery of described suction port is provided with step, and movable frame is provided with door closure on the described step, with blocking-up or connection venting of dust explosion passage; The top that it is characterized in that described housing is provided with the disk pack unit that is made of master disk and secondary disk adhesive; The middle part of described master disk is provided with through hole, and master disk and housing are fixed, and described secondary disk is fixedly connected with a door bar, and the bottom of described door bar is passed the through hole of master disk and is fixedly connected with door closure, is provided with return spring between described door closure and the master disk.
2. bullet magnetic pretension overpressure prevention device according to claim 1 is characterized in that the top of described door bar is provided with dynamometer.
3. bullet magnetic pretension overpressure prevention device according to claim 1 and 2 is characterized in that described venting of dust explosion passage is provided with the fire insulation net of being made by Stainless Steel Wire.
4. bullet magnetic pretension overpressure prevention device according to claim 3 is characterized in that the bottom edge of described door closure and/or the end face of step are provided with seal ring.
5. bullet magnetic pretension overpressure prevention device according to claim 4 is characterized in that described housing is provided with hoisting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220431295 CN202812343U (en) | 2012-08-29 | 2012-08-29 | Strong magnet pre-tightening anti-overpressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220431295 CN202812343U (en) | 2012-08-29 | 2012-08-29 | Strong magnet pre-tightening anti-overpressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812343U true CN202812343U (en) | 2013-03-20 |
Family
ID=47871213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220431295 Expired - Fee Related CN202812343U (en) | 2012-08-29 | 2012-08-29 | Strong magnet pre-tightening anti-overpressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244721A (en) * | 2013-05-09 | 2013-08-14 | 三一汽车制造有限公司 | Powder tank safety valve, powder tank and stirring station |
-
2012
- 2012-08-29 CN CN 201220431295 patent/CN202812343U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244721A (en) * | 2013-05-09 | 2013-08-14 | 三一汽车制造有限公司 | Powder tank safety valve, powder tank and stirring station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150829 |
|
| EXPY | Termination of patent right or utility model |