CN215002928U - Explosion door device for heating furnace - Google Patents
Explosion door device for heating furnace Download PDFInfo
- Publication number
- CN215002928U CN215002928U CN202120743994.1U CN202120743994U CN215002928U CN 215002928 U CN215002928 U CN 215002928U CN 202120743994 U CN202120743994 U CN 202120743994U CN 215002928 U CN215002928 U CN 215002928U
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- heating furnace
- locking mechanism
- door
- fixing piece
- explosion
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Abstract
The utility model discloses an explosion vent device for heating furnace, include: door seat and door closure, the door seat fix on the heating furnace, the door seat on the welding have the welt, the welt on be provided with the bolt, the bolt other end be fixed with locking mechanism, locking mechanism include: the ratchet wheel and the fixing piece are matched with each other, the fixing piece is in a shape like the Chinese character 'tu', a spring is arranged on the outer ring of the fixing piece, and the fixing piece is fixed on the locking mechanism through a bolt. The utility model has the advantages that: through the mutual matching of the ratchet wheel and the fixing piece, the damage to the furnace body or the explosion door caused by severe impact on the furnace body in the process of quick opening and closing during airflow explosion can be effectively avoided, the opening degree of the large door is increased, and the pressure relief rate is increased; the fixing piece is loosened and tightened by the spring, so that the service life of the fixing piece and the ratchet wheel is ensured.
Description
Technical Field
The utility model relates to an explosion vent field, concretely relates to explosion vent device for heating furnace.
Background
At present, heating furnaces in petrochemical industry are mostly tubular heating furnaces and are negative pressure furnaces, so that the furnace body of the heating furnace is damaged in order to avoid explosion due to the fact that combustible gas in the heating furnace exceeds the pressure in the furnace during working, and an explosion door is required to be additionally arranged on the furnace body of the heating furnace for pressure relief. The explosion-proof door structure used in the prior art is mainly sealed by surface gravity, the explosion-proof door cover is connected with the furnace body door frame by a screw rod, and the explosion-proof door cover can be opened after the heating furnace is stressed, so that the purpose of pressure relief is achieved. The disadvantage is that the safety is poor, and the single screw rod connecting structure has great damage to the furnace body in the process of quick opening and closing during explosion. When the explosion door is opened by matching the pawl and the ratchet wheel, the pawl is easy to damage, thereby causing great damage to the furnace body. In addition, the existing explosion vent has no protection measures, and the high-speed airflow sprayed out when the explosion vent is decompressed is easy to injure people nearby the explosion vent. Therefore, it is highly desirable to provide an explosion vent apparatus for a heating furnace, which can improve the reliability and safety of the explosion vent while reducing the difficulty and cost of maintenance and repair.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention is directed to an explosion vent apparatus for a heating furnace.
In order to realize the technical purpose, the utility model discloses a scheme is: an explosion vent apparatus for a heating furnace, comprising: door seat and door closure, the door seat fix on the heating furnace, the door seat on the welding have the welt, the welt on be provided with the bolt, the bolt other end be fixed with locking mechanism, locking mechanism include: ratchet and mounting, ratchet and mounting cooperate each other, the mounting be "native" word form, the mounting outer lane be provided with the spring, the mounting passes through the bolt fastening on locking mechanism, locking mechanism quantity be two, fix on the gate seat side by side, the ratchet middle part be provided with the pivot, the pivot both ends pass through the bolt locking, locking mechanism be connected with the transfer line, the ratchet on the ratchet clockwise slope 45.
One end of the spring props against the fixing piece, and the other end of the spring props against the inner wall of the locking mechanism.
The transmission rod and the ratchet wheel are integrated.
The door cover is internally provided with a heat insulation layer.
And a protective box is arranged on the outer ring of the fixing piece.
The utility model has the advantages that: through the mutual matching of the ratchet wheel and the fixing piece, the damage to the furnace body or the explosion door caused by severe impact on the furnace body in the process of quick opening and closing during airflow explosion can be effectively avoided, the opening degree of the large door is increased, and the pressure relief rate is increased; the fixing piece is loosened and tightened by the spring, so that the service life of the fixing piece and the ratchet wheel is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a partial enlarged view of the ratchet wheel of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a specific embodiment of the present invention is an explosion door apparatus for a heating furnace, including: door seat 1 and door closure 2, door seat 1 fix on the heating furnace, door seat 1 on the welding have welt 6, welt 6 on be provided with the bolt, the bolt other end be fixed with locking mechanism 8, locking mechanism 8 and welt 6 between be provided with backing plate 7, locking mechanism 8 include: ratchet 11 and mounting 9, ratchet 11 and mounting 9 cooperate each other, mounting 9 be "soil" word form, 9 outer lanes of mounting be provided with spring 10, mounting 9 passes through the bolt fastening on locking mechanism 8, 8 quantity of locking mechanism be two, fix on gate seat 1 side by side, 11 middle parts of ratchet be provided with pivot 3, 3 both ends of pivot pass through the bolt locking, locking mechanism 8 be connected with transfer line 5, 11 last latch clockwise 45 of ratchet.
One end of the spring 10 props against the fixing piece 9, and the other end of the spring props against the inner wall of the locking mechanism 8.
The transmission rod 5 and the ratchet wheel 11 are integrated.
The door cover 1 is internally provided with a heat insulation layer.
The outer ring of the fixed part 9 is provided with a protective box 4.
The utility model has the advantages that: through the mutual matching of the ratchet wheel and the fixing piece, the damage to the furnace body or the explosion door caused by severe impact on the furnace body in the process of quick opening and closing during airflow explosion can be effectively avoided, the opening degree of the large door is increased, and the pressure relief rate is increased; the fixing piece is loosened and tightened by the spring, so that the service life of the fixing piece and the ratchet wheel is ensured.
In the specific implementation mode, when the heating furnace is depressurized, the ratchet wheel rotates anticlockwise around the shaft pin to drive the transmission rod for fixing the door cover, the door cover is opened, and when the pressure of the heating furnace is relieved, an operator adjusts the fixed rod, the door cover is reset, and the explosion-proof door is checked.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (5)
1. An explosion vent apparatus for a heating furnace, comprising: door seat and door closure, the door seat fix on the heating furnace, its characterized in that: the gate seat on the welding have the welt, the welt on be provided with the bolt, the bolt other end be fixed with locking mechanism, locking mechanism include: ratchet and mounting, ratchet and mounting cooperate each other, the mounting be "native" word form, the mounting outer lane be provided with the spring, the mounting passes through the bolt fastening on locking mechanism, locking mechanism quantity be two, fix on the gate seat side by side, the ratchet middle part be provided with the pivot, the pivot both ends pass through the bolt locking, locking mechanism be connected with the transfer line, the ratchet on the ratchet clockwise slope 45.
2. An explosion vent apparatus for a heating furnace as set forth in claim 1, wherein: one end of the spring props against the fixing piece, and the other end of the spring props against the inner wall of the locking mechanism.
3. An explosion vent apparatus for a heating furnace as set forth in claim 1, wherein: the transmission rod and the ratchet wheel are integrated.
4. An explosion vent apparatus for a heating furnace as set forth in claim 1, wherein: the door cover is internally provided with a heat insulation layer.
5. An explosion vent apparatus for a heating furnace as set forth in claim 1, wherein: and a protective box is arranged on the outer ring of the fixing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120743994.1U CN215002928U (en) | 2021-04-13 | 2021-04-13 | Explosion door device for heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120743994.1U CN215002928U (en) | 2021-04-13 | 2021-04-13 | Explosion door device for heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215002928U true CN215002928U (en) | 2021-12-03 |
Family
ID=79136500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120743994.1U Active CN215002928U (en) | 2021-04-13 | 2021-04-13 | Explosion door device for heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215002928U (en) |
-
2021
- 2021-04-13 CN CN202120743994.1U patent/CN215002928U/en active Active
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