CN111677887B - Smoke-discharging fire-proof valve - Google Patents
Smoke-discharging fire-proof valve Download PDFInfo
- Publication number
- CN111677887B CN111677887B CN202010521989.6A CN202010521989A CN111677887B CN 111677887 B CN111677887 B CN 111677887B CN 202010521989 A CN202010521989 A CN 202010521989A CN 111677887 B CN111677887 B CN 111677887B
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- fire
- valve device
- connecting rod
- driving assembly
- square frame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/386—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the closure members being rotatable or pivoting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a smoke-discharging fire-proof valve which comprises a square frame, a first valve device and a second valve device, wherein the square frame is provided with a first valve and a second valve; the first valve device and the second valve device are arranged in the square frame at intervals, and the square frame space between the first valve device and the second valve device is a fire retardant chamber; a first driving assembly, a connecting rod assembly and a second driving assembly are arranged in the fire retardant cavity of the square frame; the fire-extinguishing device is arranged in the square frame, so that the fire-extinguishing effect of the fire-extinguishing device is further ensured, and the fire behavior is prevented from spreading in the fire-extinguishing chamber.
Description
Technical Field
The invention relates to the field of fire valves, in particular to a smoke exhaust fire valve.
Background
A smoke-discharging fire-proof valve is a fire-fighting component, generally installed on a pipeline of a mechanical smoke-discharging system, is in an open state at ordinary times, is opened to discharge smoke when a fire disaster occurs, is closed when the temperature of smoke in a smoke-discharging pipeline reaches 280 ℃, meets the requirements of smoke leakage amount and fire-resistant integrity within a certain time, and plays a role in isolating smoke and fire retardance.
The current smoke exhaust fire damper may have the problem of poor tightness, so that when a fire disaster occurs, the fire spreads to the rear of the fire damper, and the fire retardant effect of the valve is difficult to realize.
Disclosure of Invention
The invention aims to provide a smoke-discharging fireproof valve aiming at the defects in the prior art so as to achieve the purpose of improving the fire retardant effect.
The technical scheme adopted by the invention is as follows: a smoke-discharging fire-proof valve comprises a square frame, a first valve device and a second valve device; the first valve device and the second valve device are arranged in the square frame at intervals, and the square frame space between the first valve device and the second valve device is a fire retardant chamber;
a first driving assembly, a connecting rod assembly and a second driving assembly are arranged in the fire retardant cavity of the square frame; the first driving assembly is connected with the first valve device, one end of the connecting rod assembly is connected with the first driving assembly, the other end of the connecting rod assembly is connected with the second driving assembly, and the second driving assembly is connected with the second valve device;
a fire extinguishing device for extinguishing a fire in the fire retardant chamber area is arranged on the square frame; the fire extinguishing device comprises a water inlet pipe and a water drainage pipe, and the water inlet pipe is connected with the water drainage pipe; the drain pipe is installed in the square frame and extends into the fire retardant cavity of the square frame; and a sealing assembly for controlling the opening and closing of the port of the drain pipe is arranged at the joint of the water inlet pipe and the drain pipe.
Furthermore, a plurality of water spraying holes are formed in the water discharging pipe, and the water discharging pipe portion where the water spraying holes are located is located in the fire resisting chamber.
Further, the sealing assembly comprises a connecting block, an air cylinder and a sealing block for sealing the pipe orifice of the drain pipe; the connecting block is installed the inlet tube with the junction of drain pipe, the cylinder is installed inside the connecting block, sealed piece is installed on the output lever of cylinder.
Furthermore, the port department of the drain pipe with the one end of advancing water piping connection is provided with the shape with the seal groove of the shape looks adaptation of sealed piece.
Further, the linkage assembly includes a first linkage and a second linkage; one end of the first connecting rod is connected with the first driving assembly, the other end of the first connecting rod is connected with one end of the second connecting rod, and the other end of the second connecting rod is connected with the second driving assembly.
Furthermore, the first driving assembly comprises a first driving rod and a plurality of first rocking bars which are uniformly arranged on the first driving rod; the first rocker is connected with the first valve device;
the second driving assembly comprises a second driving rod and a plurality of second rocking bars which are uniformly arranged on the second driving rod; the second rocker is connected with the second valve device.
Further, the first valve arrangement comprises a first frame, a first actuator, a first primary shaft, and a plurality of first secondary shafts; the first main shaft and the plurality of first auxiliary shafts are arranged on the first frame at intervals; the first actuating mechanism is arranged on the first frame and connected with the first spindle; first sealing blades are arranged on the first main shaft, and first sealing blades are arranged on the first auxiliary shafts.
Further, a first shaft pin and a first temperature sensor are arranged on the side edge of the first actuating mechanism; one end of the first shaft pin is fixedly connected with the first actuating mechanism, the other end of the first shaft pin is locked with the first temperature sensor, and the first temperature sensor is fixed on one of the first sealing blades.
Further, the second valve device includes a second frame, a plurality of second seal blades, and a plurality of rotating shafts; many the pivot interval is installed on the second frame, it is a plurality of second seal blade is with many the pivot one-to-one is connected.
The invention has the beneficial effects that: the invention is provided with the first valve device and the second valve device to form double sealing, thereby ensuring the smoke-isolating and fire-retarding effects, and the fire extinguishing device is arranged in the square frame, thereby further ensuring the fire-retarding effects of the invention and preventing the fire from spreading in the fire-retarding chamber.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a schematic view of the fire suppression apparatus of the present invention;
fig. 4 is a cross-sectional view of the fire extinguishing apparatus of the present invention.
The fire extinguishing device comprises a first actuating mechanism, a second actuating mechanism, a first shaft pin, a first temperature sensor, a first valve device, a first main shaft, a first sealing blade, a first auxiliary shaft, a first sealing mechanism, a first actuating rod, a second valve device, a second actuating rod, a second valve device, a second actuating mechanism, a second actuating rod, a second valve device, a first main shaft, a first sealing blade, a first auxiliary shaft, a second sealing blade, a second actuating mechanism, a second actuating rod, a second actuating mechanism, a second actuating rod, a second actuating mechanism, a second actuating rod, a second actuating mechanism, a second actuating rod, and a second actuating mechanism, a second actuating rod, a second actuating mechanism, a third actuating mechanism, a second actuating mechanism, a third actuating mechanism.
Detailed Description
The invention is further illustrated by the following examples in connection with the accompanying drawings.
As shown in fig. 1 and 2, the present invention provides a smoke evacuation fire damper, which comprises a square frame 1, a first valve device 2 and a second valve device 7; the square frame 1 is arranged in a working pipeline, the first valve device 2 and the second valve device 7 are arranged in the square frame 1 at intervals, and the space of the square frame 1 between the first valve device 2 and the second valve device 7 is a fire retardant chamber 4; the first valve device 2 and the second valve device 7 can discharge smoke of the pipeline when the blades are unfolded, and when a fire disaster occurs, the pipeline is closed through the first valve device 2 and the second valve device 7 so as to isolate the fire and prevent the fire from spreading out.
A first driving assembly 5, a connecting rod assembly and a second driving assembly 6 are arranged in the fire retardant chamber 4 of the square frame 1; the first driving assembly 5 is connected with the first valve device 2, one end of the connecting rod assembly is connected with the first driving assembly 5, the other end of the connecting rod assembly is connected with the second driving assembly 6, and the second driving assembly 6 is connected with the second valve device; the first valve device 2 and the second valve device 7 are kept in linkage through the first driving assembly 5, the connecting rod assembly and the second driving assembly 6, so that the first valve device and the second valve device are opened or closed synchronously.
As shown in fig. 2, 3 and 4, a fire extinguishing device 3 for extinguishing a fire in the area of the fire retardant chamber 4 is arranged on the square frame 1; the fire extinguishing device 3 comprises a water inlet pipe 31 and a water outlet pipe 33, and the water inlet pipe 31 is connected with the water outlet pipe 33; the drain pipe 33 is installed in the square frame 1 and extends into the fire retardant chamber 4 of the square frame 1; a sealing component 32 for controlling the opening and closing of the port of the water drainage pipe 33 is arranged at the joint of the water inlet pipe 31 and the water drainage pipe 33; wherein, the water inlet pipe 31 is connected with an external water source to supply water for the water outlet pipe 33, and the water outlet pipe 33 is opened and closed through the sealing component 32, so that fire is isolated through the water outlet pipe 33 when a fire breaks out; the sealing assembly 32 is controlled by a controller (not shown), and when the temperature of the fire retardant chamber 4 reaches a set value, the controller receives a signal through a sensor (not shown), so that the sealing assembly 32 opens the drain pipe 33, and the fire is blocked; in addition, when the valve is repaired, the cylinder is not started by opening or closing the valve device, so that the repair or maintenance work is not influenced.
Be provided with a plurality of watering holes 331 on the drain pipe 33, and the drain pipe 33 pipe portion at watering hole 331 place is located back-fire relief cavity 4, and rivers spray back-fire relief cavity 4 from shining the water hole in to this back-fire relief and put out a fire, further guarantee the isolated of intensity of a fire.
The sealing assembly 32 comprises a connecting block 321, a cylinder 322 and a sealing block 323 for sealing the pipe orifice of the drain pipe 33; the connecting block 321 is installed at the joint of the water inlet pipe 31 and the water outlet pipe 33, the air cylinder 322 is installed inside the connecting block 321, and the sealing block 323 is installed on the output rod of the air cylinder 322; wherein, the cylinder 322 is controlled by the controller, and an electric cylinder or a pneumatic cylinder is adopted, when the controller receives the signals that the first valve device 2 and the second valve device 7 are closed, the cylinder 322 is controlled to be started, so as to move the sealing block 323 from the sealing groove 332 at the port of the water discharge pipe 33, so as to open the water discharge pipe 33, and further, the water flow is sprayed out along the water spraying hole 331, thereby realizing the blocking effect.
The link assembly includes a first link 81 and a second link 82; one end of the first connecting rod 81 is connected to the first driving assembly 5, the other end of the first connecting rod 81 is connected to one end of the second connecting rod 82, the other end of the second connecting rod 82 is connected to the second driving assembly 6, and the connecting rod assembly is used for keeping the first driving assembly 5 and the second driving assembly 6 in linkage, so that the first valve device 2 and the second valve device 7 are kept in linkage.
As shown in fig. 1 and fig. 2, the first driving assembly 5 includes a first driving rod 52 and a plurality of first rocking bars 51 uniformly arranged on the first driving rod 52, and the first driving rod 52 is hinged to the first rocking bars 51; a plurality of the first rockers 51 are connected to the first main shaft 25 and the first sub shaft 27 of the first valve device 2 in a one-to-one correspondence, and the first driving lever 52 is connected to one end of the first link 81.
The second driving assembly 6 comprises a second driving rod 62 and a plurality of second rocking bars 61 uniformly arranged on the second driving rod 62, and the second driving rod 62 is hinged with the second rocking bars 61; the second rocking bars 61 are connected with the rotating shafts 72 of the second valve device 7 in a one-to-one correspondence manner.
The first valve device 2 comprises a first frame 21, a first actuator 22, a first main shaft 25, and a plurality of first sub-shafts 27; the first main shaft 25 and the plurality of first auxiliary shafts 27 are mounted on the first frame 21 at intervals; the first actuator 22 is mounted on the first frame 21 and connected to the first main shaft 25, the first main shaft 25 is provided with first seal blades 26, and each of the first sub-shafts 27 is provided with a first seal blade 26; a first shaft pin 23 and a first temperature sensor 24 are arranged on the side edge of the first actuator 22; one end of the first shaft pin 23 is fixedly connected with the first actuator 22, the other end of the first shaft pin 23 is locked with the first temperature sensor 24, and the first temperature sensor 24 is fixed on one of the first sealing blades 26; wherein, the first temperature sensor 24 is used for sensing temperature, and the first temperature sensor 24 detects that the temperature is lower than the rated fusing temperature and can not be fused, namely, the first temperature sensor 24 locks the first shaft pin 23, and the first actuator 22, the first driving rod 52 and the first rocker 51 enable the first sealing blade 26 to be in an open state; when the conflagration takes place, the fire prevention valve is passed through to high temperature flue gas, first temperature sensor 24 detects the temperature and is higher than rated fusing temperature and fusing, first temperature sensor 24 disconnection and the connection of first axis round pin 23 promptly, first actuating mechanism 22 begins work under the effect of gravity this moment, make a plurality of first sealing blade 26 keep the linkage through first actuating lever 52 and first rocking arm combined action, and close first sealing blade 26 with this simultaneously, thereby obstruct the high temperature flue gas and pass through, realize sealed cigarette back-fire relief function that separates.
When the first sealing blade 26 rotates, the second sealing blade 73 of the second valve device 7 can be kept linked through the connecting rod assembly and the second driving assembly 6, so that the first sealing blade 26 and the second sealing blade 73 are closed or opened simultaneously.
The second valve device 7 includes a second frame 71, a plurality of second seal blades 73, and a plurality of rotating shafts 72; the rotating shafts 72 are installed on the second frame 71 at intervals, the second sealing blades 73 are connected with the rotating shafts 72 in a one-to-one correspondence mode, the second sealing blades 73 are enabled to keep linked through the combined action of the second driving rod 62 and the second rocker arm, and the second sealing blades 73 are closed simultaneously, so that high-temperature smoke is blocked from passing through, and the functions of sealing, blocking smoke and fire are achieved.
The fire-extinguishing device is provided with the first valve device 2 and the second valve device 7, so that double sealing is formed, the smoke-isolating and fire-retarding effects are guaranteed, and the fire-extinguishing device 3 is arranged in the square frame 1, so that the fire-retarding effects of the fire-extinguishing device are further guaranteed, and the fire can be prevented from spreading in the fire-retarding chamber 4.
The above description is only a preferred embodiment of the present invention, the present invention is not limited to the above embodiment, and there may be some slight structural changes in the implementation, and if there are various changes or modifications to the present invention without departing from the spirit and scope of the present invention, and within the claims and equivalent technical scope of the present invention, the present invention is also intended to include those changes and modifications.
Claims (9)
1. The utility model provides a fire damper discharges fume which characterized in that: comprises a square frame, a first valve device and a second valve device; the first valve device and the second valve device are arranged in the square frame at intervals, and the square frame space between the first valve device and the second valve device is a fire retardant chamber;
a first driving assembly, a connecting rod assembly and a second driving assembly are arranged in the fire retardant cavity of the square frame; the first driving assembly is connected with the first valve device, one end of the connecting rod assembly is connected with the first driving assembly, the other end of the connecting rod assembly is connected with the second driving assembly, and the second driving assembly is connected with the second valve device;
a fire extinguishing device for extinguishing a fire in the fire retardant chamber area is arranged on the square frame; the fire extinguishing device comprises a water inlet pipe and a water drainage pipe, and the water inlet pipe is connected with the water drainage pipe; the drain pipe is installed in the square frame and extends into the fire retardant cavity of the square frame; and a sealing assembly for controlling the opening and closing of the port of the drain pipe is arranged at the joint of the water inlet pipe and the drain pipe.
2. The smoke evacuation fire damper of claim 1, wherein: the drain pipe is provided with a plurality of water spraying holes, and the drain pipe part where the water spraying holes are located is positioned in the fire-retardant chamber.
3. The smoke evacuation fire damper of claim 1, wherein: the sealing assembly comprises a connecting block, an air cylinder and a sealing block for sealing the pipe orifice of the drain pipe; the connecting block is installed the inlet tube with the junction of drain pipe, the cylinder is installed inside the connecting block, sealed piece is installed on the output lever of cylinder.
4. A smoke evacuation fire damper as claimed in claim 3 wherein: the port department of the drain pipe with the one end of advancing water piping connection is provided with the shape with the seal groove of the shape looks adaptation of sealed piece.
5. The smoke evacuation fire damper of claim 1, wherein: the connecting rod assembly comprises a first connecting rod and a second connecting rod; one end of the first connecting rod is connected with the first driving assembly, the other end of the first connecting rod is connected with one end of the second connecting rod, and the other end of the second connecting rod is connected with the second driving assembly.
6. The smoke evacuation fire damper of claim 1, wherein: the first driving assembly comprises a first driving rod and a plurality of first rocking bars which are uniformly arranged on the first driving rod; the first rocker is connected with the first valve device;
the second driving assembly comprises a second driving rod and a plurality of second rocking bars which are uniformly arranged on the second driving rod; the second rocker is connected with the second valve device.
7. The smoke evacuation fire damper of claim 1, wherein: the first valve arrangement comprises a first frame, a first actuator, a first primary shaft, and a plurality of first secondary shafts; the first main shaft and the plurality of first auxiliary shafts are arranged on the first frame at intervals; the first actuating mechanism is arranged on the first frame and connected with the first spindle; first sealing blades are arranged on the first main shaft, and first sealing blades are arranged on the first auxiliary shafts.
8. The smoke evacuation fire damper of claim 7, wherein: a first shaft pin and a first temperature sensor are arranged on the side edge of the first actuating mechanism; one end of the first shaft pin is fixedly connected with the first actuating mechanism, the other end of the first shaft pin is locked with the first temperature sensor, and the first temperature sensor is fixed on one of the first sealing blades.
9. The smoke evacuation fire damper of claim 1, wherein: the second valve device comprises a second frame, a plurality of second sealing blades and a plurality of rotating shafts; many the pivot interval is installed on the second frame, it is a plurality of second seal blade is with many the pivot one-to-one is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010521989.6A CN111677887B (en) | 2020-06-10 | 2020-06-10 | Smoke-discharging fire-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010521989.6A CN111677887B (en) | 2020-06-10 | 2020-06-10 | Smoke-discharging fire-proof valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111677887A CN111677887A (en) | 2020-09-18 |
| CN111677887B true CN111677887B (en) | 2021-12-03 |
Family
ID=72454483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010521989.6A Active CN111677887B (en) | 2020-06-10 | 2020-06-10 | Smoke-discharging fire-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111677887B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102402721B1 (en) * | 2021-11-29 | 2022-05-30 | 한방유비스 주식회사 | Fire damper system with heat shielding performance |
| CN114576845B (en) * | 2022-01-18 | 2023-03-24 | 希达空调净化设备有限公司 | Fireproof air port with variable isolation chamber |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100931A (en) * | 1975-07-18 | 1978-07-18 | Leonard Joseph Fisher | Fire damper |
| GB0405942D0 (en) * | 2004-03-17 | 2004-04-21 | Gilberts Blackpool Ltd | Controlling access to an opening |
| KR200427051Y1 (en) * | 2006-06-05 | 2006-09-21 | (주)씨트웰 | The double valve |
| CN104121667A (en) * | 2014-07-11 | 2014-10-29 | 张跃 | Fireproof dual valve |
| CN105546160A (en) * | 2015-12-15 | 2016-05-04 | 中广核工程有限公司 | Nuclear power plant air handling unit and linkage windward bypass valve thereof |
| CN110715383A (en) * | 2019-11-15 | 2020-01-21 | 天津市金中基暖通净化设备有限公司 | Fire-fighting ventilation system with multiple smoke exhaust valves connected in series |
-
2020
- 2020-06-10 CN CN202010521989.6A patent/CN111677887B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100931A (en) * | 1975-07-18 | 1978-07-18 | Leonard Joseph Fisher | Fire damper |
| GB0405942D0 (en) * | 2004-03-17 | 2004-04-21 | Gilberts Blackpool Ltd | Controlling access to an opening |
| KR200427051Y1 (en) * | 2006-06-05 | 2006-09-21 | (주)씨트웰 | The double valve |
| CN104121667A (en) * | 2014-07-11 | 2014-10-29 | 张跃 | Fireproof dual valve |
| CN105546160A (en) * | 2015-12-15 | 2016-05-04 | 中广核工程有限公司 | Nuclear power plant air handling unit and linkage windward bypass valve thereof |
| CN110715383A (en) * | 2019-11-15 | 2020-01-21 | 天津市金中基暖通净化设备有限公司 | Fire-fighting ventilation system with multiple smoke exhaust valves connected in series |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111677887A (en) | 2020-09-18 |
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