CN216922220U - Special fire door system for power transmission cable tunnel - Google Patents
Special fire door system for power transmission cable tunnel Download PDFInfo
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- CN216922220U CN216922220U CN202122929116.1U CN202122929116U CN216922220U CN 216922220 U CN216922220 U CN 216922220U CN 202122929116 U CN202122929116 U CN 202122929116U CN 216922220 U CN216922220 U CN 216922220U
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Abstract
The invention discloses a fire door system special for a transmission cable tunnel, which comprises: the fireproof plate (9) is fixedly arranged in the cable tunnel, and a door frame (2) and a fireproof door (6) which is rotatably connected with a side frame of the door frame (2) are arranged on the fireproof plate (9); the door opener (1) is installed on the upper frame of the door frame (2), the door opener (1) is connected with the fireproof door (6) through a door opener pushing arm (11), and the electric mortise lock (5) used for automatically locking the fireproof door (6) is installed on the lower frame of the door frame (2); and the fireproof plate (9) is also provided with a photoelectric smoke detector (12) for detecting the gas content in the cable tunnel and a distribution box (7) for supplying power to the photoelectric smoke detector (12), the door opener (1) and the electric mortise lock (5). According to the invention, the photoelectric smoke detector can intelligently identify the fire condition in the tunnel, the fire door is kept in a normally open state when no smoke exists, the fire door is immediately closed when smoke is detected, and the tunnel ventilation and fire prevention requirements can be met.
Description
Technical Field
The invention relates to the field of cable tunnel safety protection, in particular to a fire door system special for a power transmission cable tunnel.
Background
With the demand of urban beauty and the like, the number of overhead lines entering the ground is increased, the cable becomes the urban power supply trend in the future, and the potential safety hazard is increased gradually. In order to ensure the safe operation of the cable tunnel, fire doors are required to be installed at intervals inside the cable tunnel according to national and industrial regulations.
The common fireproof door is composed of a normally open fireproof door and a normally closed fireproof door. To fire door is prevented to open always, when taking place the conflagration in the tunnel, the staff hardly in time arrives and closes and prevents fire door, and flame will pass prevents fire door and gets into adjacent section tunnel, makes to prevent that fire door loses the fire prevention effect. For a normally closed fireproof door, the problems of poor ventilation in a part of tunnels and the like can be caused, and the safety of operation and maintenance personnel is endangered.
The opening and closing control of a fireproof door inside a cable tunnel always troubles power supply enterprises.
Disclosure of Invention
Aiming at the problems, the invention provides the special fire door system for the cable tunnel, which has a stable and reliable structure and has the functions of automatic opening and closing control and fire monitoring.
In order to achieve the above object, the present invention provides a fire door system for a power transmission cable tunnel, comprising: the fireproof plate is fixedly arranged in the cable tunnel, and a door frame and a fireproof door which is rotatably connected with the side frame of the door frame are arranged on the fireproof plate;
the door opener is mounted on the upper frame of the door frame and connected with the fireproof door through a door opener push arm, and the electric mortise lock for automatically locking the fireproof door is mounted on the lower frame of the door frame;
still install the photoelectric smoke detector who is used for detecting gaseous content in the cable tunnel and do on the PLASTIC LAMINATED the block terminal of photoelectric smoke detector, door operator, electric mortiser lock power supply, photoelectric smoke detector, door operator, electric mortiser lock with the wire that the block terminal is connected integrates in the wire casing.
In a preferable mode, a plurality of cable holes for cables to pass through are formed in the fireproof plates on two sides of the fireproof door.
In a preferable mode, the upper frame of the door frame is also provided with a photoelectric switch for controlling the action of the door opening machine.
Preferably, the connection mode among the elements is as follows: the output end of the photoelectric smoke detector is connected with the input end of the photoelectric switch, and the output end of the photoelectric switch is simultaneously connected with the input ends of the door opener and the electric mortise lock.
In a preferred mode, the working logic of the fire door system is as follows:
when smoke is detected, the photoelectric smoke detector outputs an alarm signal to the photoelectric switch, the photoelectric switch is closed and controls a door opening machine push arm of the door opening machine to contract, the fireproof door is closed, and the electric mortise lock locks the fireproof door;
when the door is in a smoke-free state, the photoelectric smoke detector does not output an alarm signal to the photoelectric switch, the photoelectric switch keeps a disconnection state and controls the pushing arm of the door opener to keep an extension state, and the fireproof door keeps an opening state.
The invention has the beneficial effects that: through the condition of a fire in photoelectric smoke detector can intelligent recognition tunnel, when not having smog, keep preventing fire door normally open state, when detecting smog, close immediately and prevent fire door, can compromise tunnel ventilation and fire prevention requirement.
Drawings
Figure 1 is a schematic view of an inside construction of a fire rated door system;
figure 2 is an exterior side view of the fire door system.
In the figure: 1. door operator, 2, door frame, 3, wire casing, 4, cable hole, 5, electric mortiser lock, 6, prevent fire door, 7, block terminal, 8, tunnel wall, 9, PLASTIC LAMINATED, 10, photoelectric switch, 11, door operator push arm, 12, photoelectric smoke detector.
Detailed Description
The specific embodiment is as follows:
as shown in fig. 1 and 2, the fire door system for a power transmission cable tunnel according to the present invention includes: the fireproof plate 9 is fixedly arranged on the side of a tunnel wall 8 in the cable tunnel, and the fireproof plate 9 is provided with a door frame 2 and a fireproof door 6 which is rotatably connected with the side frame of the door frame 2;
the door opener 1 is mounted on the upper frame of the door frame 2, the door opener 1 is connected with the fireproof door 6 through a door opener push arm 11, and the electric mortise lock 5 for automatically locking the fireproof door 6 is mounted on the lower frame of the door frame 2;
the fireproof plate 9 is further provided with a photoelectric smoke detector 12 for detecting the gas content in the cable tunnel and a distribution box 7 for supplying power to the photoelectric smoke detector 12, the door opener 1 and the electric mortise lock 5, and the photoelectric smoke detector 12, the door opener 1 and the electric mortise lock 5 are integrated in the wire slot 3 through wires connected with the distribution box 7.
As shown in fig. 1 and 2, a plurality of cable holes 4 for passing cables are formed in the fireproof plates 9 on both sides of the fireproof door 6.
As shown in fig. 1 and 2, a photoelectric switch 10 for controlling the operation of the door opener 1 is further installed on the upper frame of the door frame 2.
The connection mode among the elements in the invention is as follows: the output end of the photoelectric smoke detector 12 is connected with the input end of the photoelectric switch 10, and the output end of the photoelectric switch 10 is simultaneously connected with the input ends of the door opener 1 and the electric mortise lock 5.
When the pushing arm 11 of the door opener is completely extended, the fireproof door 6 is in an opening state, and when the pushing arm 11 of the door opener is completely retracted, the fireproof door 6 is in a closing state. The output alarm signal of the photoelectric smoke detector 12 can be transmitted to the photoelectric switch 10, and the photoelectric switch 10 can control the pushing arm 11 of the door opener to stretch and retract, so as to control the opening and closing of the fireproof door 6.
More specifically, the working logic of the fire door system is as follows:
when smoke is detected, the photoelectric smoke detector 12 outputs an alarm signal to the photoelectric switch 10, the photoelectric switch 10 is closed and controls the door opening machine push arm 11 of the door opening machine 1 to contract, the fireproof door 6 is rapidly closed, and the electric latch 5 locks the fireproof door 6, so that the fireproof door 6 is prevented from being opened by mistake;
when the door is in a smokeless state, the photoelectric smoke detector 12 does not output an alarm signal to the photoelectric switch 10, the photoelectric switch 10 does not have signal input, the photoelectric switch 10 keeps an off state and controls the door opening machine push arm 11 of the door opening machine 1 to keep an extending state, and the fireproof door 6 keeps an opening state.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. The utility model provides a fire door system is prevented in transmission cable tunnel special use which characterized in that includes: the fireproof plate (9) is fixedly arranged in the cable tunnel, and a door frame (2) and a fireproof door (6) which is rotatably connected with a side frame of the door frame (2) are arranged on the fireproof plate (9);
the door opener (1) is installed on the upper frame of the door frame (2), the door opener (1) is connected with the fireproof door (6) through a door opener pushing arm (11), and the electric mortise lock (5) used for automatically locking the fireproof door (6) is installed on the lower frame of the door frame (2);
still install on PLASTIC LAMINATED (9) and be used for detecting the inside gas content's of cable tunnel photoelectric smoke detector (12) and do block terminal (7) of photoelectric smoke detector (12), door operator (1), electric mortiser lock (5) power supply, photoelectric smoke detector (12), door operator (1), electric mortiser lock (5) with the wire that block terminal (7) are connected integrates in wire casing (3).
2. The special fire door system for the power transmission cable tunnel according to claim 1, wherein a plurality of cable holes (4) for passing cables are formed on the fire-proof plates (9) at two sides of the fire-proof door (6).
3. Fire door system special for power transmission cable tunnels according to claim 1, characterized in that the upper frame of the door frame (2) is further provided with a photoelectric switch (10) for controlling the action of the door opener (1).
4. The fire door system special for transmission cable tunnels according to claim 1, wherein the connection mode among the elements is as follows: the output end of the photoelectric smoke detector (12) is connected with the input end of the photoelectric switch (10), and the output end of the photoelectric switch (10) is simultaneously connected with the input ends of the door opener (1) and the electric mortise lock (5).
5. The fire door system special for power transmission cable tunnels according to claim 1, wherein the working logic of the fire door system is as follows:
when smoke is detected, the photoelectric smoke detector (12) outputs an alarm signal to the photoelectric switch (10), the photoelectric switch (10) is closed and controls the door opening machine push arm (11) of the door opening machine (1) to contract, the fireproof door (6) is closed, and the electric mortise lock (5) locks the fireproof door (6);
when the smoke is not generated, the photoelectric smoke detector (12) does not output an alarm signal to the photoelectric switch (10), the photoelectric switch (10) keeps an off state and controls the door opening machine pushing arm (11) of the door opening machine (1) to keep an extending state, and the fireproof door (6) keeps an opening state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122929116.1U CN216922220U (en) | 2021-11-26 | 2021-11-26 | Special fire door system for power transmission cable tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122929116.1U CN216922220U (en) | 2021-11-26 | 2021-11-26 | Special fire door system for power transmission cable tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216922220U true CN216922220U (en) | 2022-07-08 |
Family
ID=82250684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122929116.1U Active CN216922220U (en) | 2021-11-26 | 2021-11-26 | Special fire door system for power transmission cable tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216922220U (en) |
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2021
- 2021-11-26 CN CN202122929116.1U patent/CN216922220U/en active Active
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