CN202812349U - Negative-pressure anti-implosion device - Google Patents
Negative-pressure anti-implosion device Download PDFInfo
- Publication number
- CN202812349U CN202812349U CN 201220431293 CN201220431293U CN202812349U CN 202812349 U CN202812349 U CN 202812349U CN 201220431293 CN201220431293 CN 201220431293 CN 201220431293 U CN201220431293 U CN 201220431293U CN 202812349 U CN202812349 U CN 202812349U
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- China
- Prior art keywords
- magnetic plate
- housing
- pressure
- disk
- shell body
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- Expired - Fee Related
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Abstract
The utility model aims to provide a negative-pressure anti-implosion device which can precisely control the detonating pressure and the return pressure of a system to guarantee the system not to be damaged and to run normally under an abnormal operating condition. The negative-pressure anti-implosion device comprises a shell body, an explosion venting channel is arranged inside the shell body, one end of the explosion venting channel is communicated with an explosion venting port on the side portion of the shell body, and the other end of the explosion venting channel is communicated with an air outlet on the bottom portion of the shell body. A door enclosure is movably arranged on the bottom portion of the air outlet to block up or be communicated with the explosion venting channel. The key lies in that a magnetic plate component composed of a main magnetic plate and an auxiliary magnetic plate is arranged on the top portion of the shell body. The main magnetic plate is fixed with the shell body, the auxiliary magnetic plate is arranged below the main magnetic plate, the auxiliary magnetic plate is fixedly connected with a door rod, the bottom end of the door rod is fixedly connected with the door enclosure, and a reset spring is arranged between the door enclosure and the auxiliary magnetic plate. The negative-pressure anti-implosion device is simple in structure, can precisely adjust and set the detonating pressure and the return pressure of the system, and is good in practicability.
Description
Technical field
The utility model relates to a kind of anti-implosion device of negative pressure that is applied to electric power, petrochemical field.
Background technique
Air and gas system in electric power, the petrochemical industry negative pressure situation that exceeds standard might occur when operation troubles, the flow that must increase sharply this moment is in order to avoid cause serious consequence.The anti-implosion device of traditional negative pressure only relies on spring to control to start and return, be difficult to detonating and return pressure of accuracy-control system, and through-current capacity can not meet the demands the bite of pulling back after the action during action.
The model utility content
The purpose of this utility model be propose a kind of can accuracy-control system detonate and the anti-implosion device of negative pressure of return pressure, be not damaged when the unconventional operating mode and can normally move with the assurance system.
The anti-implosion device of negative pressure 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 air outlet of housing bottom; The bottom of described air outlet is movably equipped with door closure, 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; Described master disk and housing are fixed, and described secondary disk is positioned at the master disk below, and secondary disk is fixedly connected with a door bar, and the bottom of described door bar is fixedly connected with door closure, is provided with return spring between described door closure and the secondary disk.
In use, the bottom edge of housing is connected with system sealing.When system occurs surpassing the negative pressure condition of specified value, door closure is formed downward suction, when door closure bears downward suction above predetermined pressure, door closure can move down, and the pulling force of breakthrough return spring and the suction between master disk and the secondary disk, so that master disk and secondary magnetic disc separation simultaneously so that the venting of dust explosion passage between air outlet and the venting of dust explosion mouth is unimpeded, so just can increase flow gas; When reaching system's suction and intake velocity and maintain an equal level, door closure related door bar and secondary disk no longer continue to descend internal and external pressure balance; After intrasystem pressure was normal, the suffered downward suction of door closure 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, recovers 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.In addition, because housing and system combine closely, when door closure moved to system orientation, the pore size between door closure and the housing depended on the size of negative pressure, and namely the size of venting of dust explosion passage depends on the size of negative pressure, therefore can maximum adaptive system demand.
Further, the top edge of described door closure and the bottom surface of air outlet are provided with seal ring, make between door closure and housing and housing and the system to seal tightly.
Further, described housing is provided with hoisting ring, to make things convenient for the device transportation.
The anti-implosion apparatus structure of negative pressure of the present utility model is simple, can accurately regulate and the detonating and return pressure of initialization system, has good practicability.
Description of drawings
Fig. 1 is the structural representation of the anti-implosion device of negative pressure 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 anti-implosion device of the negative pressure 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 2 sidepieces, and the other end communicates with the air outlet 4 of housing 2 bottoms; The bottom of air outlet 4 is movably equipped with door closure 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 6 and 7 adhesives of secondary disk; Master disk 6 is fixed with housing, and secondary disk 7 is positioned at master disk 6 belows, and secondary disk 7 is fixedly connected with a door bar 8, and the bottom of door bar 8 is fixedly connected with door closure 5, is provided with return spring 9 between door closure 5 and the secondary disk 7.
The bottom surface of the top edge of door closure 5 and air outlet 4 is provided with seal ring 10, makes between door closure 5 and housing 2 and housing 2 and the system to seal tightly.
Housing 2 is provided with hoisting ring 11, to make things convenient for the device transportation.
In use, the bottom edge of housing 2 is connected with system sealing.When system occurs surpassing the negative pressure condition of specified value, door closure 5 is formed downward suction, when the door closure 5 downward suction that bears surpasses predetermined pressure, door closure 5 can move down, and the pulling force of breakthrough return spring 9 and the suction between master disk 6 and the secondary disk 7, so that master disk 6 separates with secondary disk 7, simultaneously so that the venting of dust explosion passage 1 between air outlet 4 and the venting of dust explosion mouth 3 is unimpeded, so just can increase flow gas; When reaching system's suction and intake velocity and maintain an equal level, 5 related bars of door closure 8 and secondary disk 7 no longer continue decline, internal and external pressure balance; After intrasystem pressure was normal, door closure 5 suffered downward suction will diminish, and door closure 5 can reset under the effect of the pressure of return spring 9 and the suction between master disk 6 and the secondary disk 7, 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 6 and the secondary disk 7, and then can accuracy-control system detonate and return pressure.In addition, because housing 2 is combined closely with system, when door closure 5 moved to system orientation, the pore size between door closure 5 and the housing 2 depended on the size of negative pressure, and namely the size of venting of dust explosion passage 1 depends on the size of negative pressure, therefore can maximum adaptive system demand.
Claims (3)
1. the anti-implosion device of negative pressure 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 air outlet of housing bottom; The bottom of described air outlet is movably equipped with door closure, 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; Described master disk and housing are fixed, and described secondary disk is positioned at the master disk below, and secondary disk is fixedly connected with a door bar, and the bottom of described door bar is fixedly connected with door closure, is provided with return spring between described door closure and the secondary disk.
2. the anti-implosion device of negative pressure according to claim 1 is characterized in that the top edge of described door closure and the bottom surface of air outlet are provided with seal ring.
3. the anti-implosion device of negative pressure according to claim 1 and 2 is characterized in that described housing is provided with hoisting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220431293 CN202812349U (en) | 2012-08-29 | 2012-08-29 | Negative-pressure anti-implosion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220431293 CN202812349U (en) | 2012-08-29 | 2012-08-29 | Negative-pressure anti-implosion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812349U true CN202812349U (en) | 2013-03-20 |
Family
ID=47871219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220431293 Expired - Fee Related CN202812349U (en) | 2012-08-29 | 2012-08-29 | Negative-pressure anti-implosion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812349U (en) |
-
2012
- 2012-08-29 CN CN 201220431293 patent/CN202812349U/en not_active Expired - Fee Related
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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 |