CN220229260U - Safety automatic device for preventing false closing of smoke baffle - Google Patents
Safety automatic device for preventing false closing of smoke baffle Download PDFInfo
- Publication number
- CN220229260U CN220229260U CN202322237456.7U CN202322237456U CN220229260U CN 220229260 U CN220229260 U CN 220229260U CN 202322237456 U CN202322237456 U CN 202322237456U CN 220229260 U CN220229260 U CN 220229260U
- Authority
- CN
- China
- Prior art keywords
- baffle
- stop pin
- cylinder
- feedback switch
- automatic device
- 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.)
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- 239000000779 smoke Substances 0.000 title claims abstract description 17
- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 4
- 206010022000 influenza Diseases 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
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- Air-Flow Control Members (AREA)
Abstract
The utility model discloses an anti-false-closing safety automatic device for a smoke baffle, which belongs to the technical field of air flues and comprises an execution cylinder, an air source control valve, a feedback switch, a stop pin and a limit control cabinet for controlling the action of the execution cylinder; the actuating cylinder is arranged on the fan shell, a stop pin is connected to the output end of the actuating cylinder, one end of the stop pin is inserted on the side wall of the fan shell, the feedback switch is arranged at the full-open position of the actuating mechanism for controlling the opening and closing of the baffle, the feedback switch is electrically connected with the limit control cabinet, and an air source control valve is arranged on the air pipeline between the limit control cabinet and the actuating cylinder. When the fan is in an operating state, when the opening of the baffle of the fan is increased and is fully opened, the baffle executing mechanism touches the feedback switch to execute the action of the cylinder to drive the stop pin to extend in, so that the baffle is protected from running in the turn-off direction due to air flow disturbance.
Description
Technical Field
The utility model relates to the technical field of air flues, in particular to a safety automatic device for preventing a smoke baffle from being closed by mistake.
Background
The front and rear air channels of six fans of the thermal power plant generally adopt a shutter type inlet and outlet baffle, and safety risks such as clamping injury or extrusion exist when the shutter type baffle is switched off. When the fan is overhauled or is subjected to mediated inspection, operators enter the fan to unfold, the baffles of the shutter type are opened, and then the operators drill through gaps between the lower-layer shutters to enter the fan to unfold. In the process that the person passes through the gaps between the lower-layer louvers, if misoperation of the person, deviation in personnel communication or factor changes such as overhauling and debugging of the baffle plate occur, the louver baffle plate is turned off, light persons are trapped in the fan, and casualties occur to heavy persons.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the safety automatic device for preventing the false closing of the smoke baffle, and the functions of the equipment for preventing the false closing of the smoke baffle and personal safety are added under the condition that the normal operation of the smoke baffle is not influenced.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an anti-false-closing safety automatic device for a smoke baffle, which comprises an execution cylinder, an air source control valve, a feedback switch, a stop pin and a limit control cabinet for controlling the action of the execution cylinder; the actuating cylinder is arranged on the fan shell, a stop pin is connected to the output end of the actuating cylinder, one end of the stop pin is inserted on the side wall of the fan shell, the feedback switch is arranged at the full-open position of the actuating mechanism for controlling the opening and closing of the baffle, the feedback switch is electrically connected with the limit control cabinet, and an air source control valve is arranged on the air pipeline between the limit control cabinet and the actuating cylinder.
The preferable technical scheme of the utility model is that the air source control valve is provided with a hanging chain.
The utility model is preferably characterized in that the gap between the stop pin and the fan housing is sealed by a filler.
The preferable technical scheme of the utility model is that the actuating cylinder is arranged at the lowest part of the actuating mechanism.
The preferable technical scheme of the utility model is that the stop pin is positioned below the full opening position of the lowermost baffle.
The beneficial effects of the utility model are as follows:
according to the safety automatic device for preventing the false closing of the smoke baffle, when the fan is in the running state, and when the opening of the fan baffle is increased and is in the full opening state, the baffle actuating mechanism touches the feedback switch to execute the action of the cylinder to drive the stop pin to extend in, so that the baffle is protected from running in the closing direction due to air flow disturbance.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic side view of the present utility model;
FIG. 3 is a schematic view of a fully open position of the shutter of the present utility model;
in the figure:
1. an execution cylinder; 2. an air source control valve; 3. a feedback switch; 4. a stop pin; 5. a limit control cabinet; 6. a blower housing; 7. a baffle; 8. an actuator.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in the figure, the embodiment provides a safety automatic device for preventing the false closing of a smoke baffle, which comprises an execution cylinder 1, an air source control valve 2, a feedback switch 3, a stop pin 4 and a limit control cabinet 5 for controlling the action of the execution cylinder 1; the actuating cylinder 1 is arranged on the fan shell 6, a stop pin 4 is connected to the output end of the actuating cylinder 1, one end of the stop pin 4 is inserted on the side wall of the fan shell 6, and specifically, an opening is formed in the position, below the full opening position of the lower baffle 7, of the shell at the position of the fan external actuating mechanism 8, and the opening size is phi 25mm. The execution cylinder 1 is installed by taking the hole as a center point, the execution cylinder 1 is firmly installed on the fan shell 6, the output end of the execution cylinder 1 is connected with the stop pin 4, the size of the stop pin 4 is phi 15mm, the length of the stop pin is 100mm, one end of the stop pin 4 penetrates into the hole, and a gap between the stop pin 4 and the fan shell 6 is sealed by using filler, so that the smoke is prevented from flowing out.
The feedback switch 3 is arranged at the full-open position of the actuating mechanism 8 for controlling the baffle 7 to open and close, the feedback switch 3 is electrically connected with the limit control cabinet 5, an air source control valve 2 is arranged on the air pipeline between the limit control cabinet 5 and the actuating cylinder 1, the actuating cylinder 1 is controlled through the limit control cabinet 5, and the air source control valve 2 is provided with a padlock chain and can be locked when necessary.
When the fan is in maintenance, the fan can be maintained inside because the staff needs to drill behind the baffle 7, at the moment, the opening of the baffle 7 of the fan is set to be in a fully-opened state, the actuating mechanism of the baffle 7 touches the feedback switch 3 to execute the action of the air cylinder 1, the stop pin 4 is driven to extend into and carry out limit protection on the lower baffle 7 in the turn-off direction, and meanwhile, the air source control valve 2 is closed and locked, so that the staff can be prevented from suddenly turning off the baffle 7 in the process of passing through the baffle 7, and the staff is further protected. Even if the executing mechanism of the external baffle 7 of the fan is disassembled and overhauled, the newly added protecting device is still in a working state and the lower baffle 7 is still in an anti-turn-off state because the air source pipeline is in a turn-off and locking state. After the maintenance work of the fan is finished, the padlock on the air source control valve 2 is released and opened, and the safety automatic device for preventing the smoke baffle 7 from being closed by mistake enters a normal operation mode.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The utility model is not to be limited by the specific embodiments disclosed herein, and other embodiments are within the scope of the utility model as defined by the claims of the present application.
Claims (5)
1. The utility model provides a smoke baffle prevents mistake and closes safe automation equipment which characterized in that:
the device comprises an execution cylinder (1), an air source control valve (2), a feedback switch (3), a stop pin (4) and a limit control cabinet (5) for controlling the action of the execution cylinder (1);
the execution cylinder (1) is arranged on the fan shell (6), the output end of the execution cylinder (1) is connected with a stop pin (4), one end of the stop pin (4) is inserted on the side wall of the fan shell (6),
the feedback switch (3) is arranged at the full-open position of the actuating mechanism (8) for controlling the opening and closing of the baffle plate (7), the feedback switch (3) is electrically connected with the limit control cabinet (5), and the air source control valve (2) is arranged on the air pipeline between the limit control cabinet (5) and the actuating cylinder (1).
2. The smoke baffle false shut prevention safety automatic device according to claim 1, wherein:
the air source control valve (2) is provided with a hanging chain.
3. The smoke baffle false shut prevention safety automatic device according to claim 1, wherein:
the gap between the stop pin (4) and the fan shell (6) is sealed by using a filler.
4. The smoke baffle false shut prevention safety automatic device according to claim 1, wherein:
the actuating cylinder (1) is arranged at the lowest part of the actuating mechanism (8).
5. The smoke baffle false shut prevention safety automatic device according to claim 4, wherein:
the stop pin (4) is positioned below the full opening position of the lowermost baffle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322237456.7U CN220229260U (en) | 2023-08-18 | 2023-08-18 | Safety automatic device for preventing false closing of smoke baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322237456.7U CN220229260U (en) | 2023-08-18 | 2023-08-18 | Safety automatic device for preventing false closing of smoke baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220229260U true CN220229260U (en) | 2023-12-22 |
Family
ID=89197860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322237456.7U Active CN220229260U (en) | 2023-08-18 | 2023-08-18 | Safety automatic device for preventing false closing of smoke baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220229260U (en) |
-
2023
- 2023-08-18 CN CN202322237456.7U patent/CN220229260U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |