CN210003321U - double-tunnel complementary ventilation system and air duct fire anti-smoke-mixing device - Google Patents
double-tunnel complementary ventilation system and air duct fire anti-smoke-mixing device Download PDFInfo
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- CN210003321U CN210003321U CN201920579120.XU CN201920579120U CN210003321U CN 210003321 U CN210003321 U CN 210003321U CN 201920579120 U CN201920579120 U CN 201920579120U CN 210003321 U CN210003321 U CN 210003321U
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Abstract
The utility model relates to a double tunnel complementary ventilation system and wind channel fire anti-cross smoke device, belong to highway tunnel ventilation and fire control technical field, double tunnel complementary ventilation system is including the horizontal complementary wind channel that is used for communicateing two adjacent tunnels and being used for carrying out the wind channel fire anti-cross smoke device of on-off control to the wind channel, wind channel fire anti-cross smoke device includes the controller, fire detector, can install fire prevention on the wind channel side wall with opening and close, be used for keeping fire prevention in the state of opening at of opening the state and keeping the ware, and close ware, the controller is used for when receiving the detection signal that the sign conflagration took place that fire detector exported, to keeping ware output release control signal to .
Description
Technical Field
The utility model relates to a highway tunnel ventilation and fire control technical field, specifically speaking relates to kinds of complementary ventilation systems in two tunnels and can be used to establish this complementary ventilation systems in two tunnels's wind channel conflagration anti-cross smoke device.
Background
The complementary ventilation mode is novel and energy-saving ventilation modes, and the basic working principle is that adjacent uphill tunnels and downhill tunnels are communicated by using transverse complementary air channels, so that relatively clean air in the downhill tunnels is used for diluting relatively dirty air in the uphill tunnels, and therefore the balance of ventilation loads of the two adjacent tunnels is achieved, for example, as disclosed in patent document with publication number CN 102287213A.
Like the aforementioned patent document , patent document CN106014468A also discloses that the air quality in the tunnel is improved by adding a transverse complementary air duct between two adjacent tunnels and adding a reversible axial flow fan with the transverse complementary air duct, however, this complementary ventilation mode also brings fire-fighting hidden trouble, that is, the tunnel originally considered as two fire-protection subareas has the possibility that smoke can rapidly flow from the upward fire tunnel to the downward non-fire tunnel due to the connection of the complementary air ducts, and causes unnecessary secondary damage.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing double-tunnel complementary ventilation systems which can rapidly block fire smoke from streaming flow from an upstream fire tunnel to a downstream non-fire tunnel;
another objective of the present invention is to provide air duct fire anti-cross-smoke device for constructing the above-mentioned double-tunnel complementary ventilation system.
In order to achieve the main purpose, the utility model provides a double-tunnel complementary ventilation system comprises a transverse complementary air channel used for communicating two adjacent tunnels and a fan arranged in the transverse complementary air channel, the double-tunnel complementary ventilation system comprises an air channel fire anti-cross smoke device used for controlling the opening and closing of the air channel of the transverse complementary air channel, the air channel fire anti-cross smoke device comprises a controller, a fire detector used for detecting fire representation in an upstream tunnel, a fire protection openably and closably arranged on the air channel side wall of the transverse complementary air channel, a retainer used for keeping the fire protection in an open state at the open position of the open state and a closing device, the closing device is used for forcing the fire protection to move to a closed state at least when the retainer releases state retaining force on the fire protection , the controller is used for outputting a release control signal to the retainer when receiving a detection signal which is output by the fire detector and is used for controlling the release state retaining force of the retainer.
The air duct fire and smoke prevention device is additionally arranged on the transverse complementary air duct, so that the fire protection is kept in an open state by the retainer in the normal use process, the air exchange process is prevented from being blocked, and when the fire detector detects that the upstream tunnel has a fire, the controller controls the retainer to release the retention of the fire protection , and under the driving of the closing device, the fire protection is driven to be quickly closed, so that the transverse complementary air duct is closed, the thick smoke and the heat are blocked, and the tunnels of two different fire protection zones are still kept in a physical blocking state.
Specifically, the retainer is an electromagnetic release.
More specifically, the electromagnetic releaser is an electromagnetic suction releaser which can release state holding force when power is off, so that the fire protection requirement of the power-off switch can be better met while the structure of the retainer is simplified.
Preferably, the closure is a non-electrically-driven reset mechanism having a reset force that forces the fire protection to the closed position, and the retainer is used at least to overcome the reset force applied by the closure to retain the fire protection in the open position, thereby better fulfilling the fire protection requirements of the power shut-off .
The more preferred scheme is that the closing device is a hydraulic closing device, the retainer releases the state holding force for fire protection when power is cut off, the closing device is constructed by utilizing hydraulic drive, power supply is not needed in the process of closing , the performance is stable, and the fire protection requirement of the power cut-off is better compounded.
Another preferred scheme is that the air duct fire anti-cross-smoke device comprises frames and 0 frame center columns which are arranged on the side walls of an air duct, fire prevention is of a double-sash-split 2 structure, people are provided with permanent magnet blocks in the frame and the fixed frame of the fire prevention , people are fixedly provided with magnetic attraction modules which attract the permanent magnet blocks when the fire prevention 5 is closed, the fixed frame is frame and/or 7 frame center columns, the opening direction of the fire prevention 8 faces an upstream tunnel, fire prevention is arranged at the end of a transverse complementary air duct adjacent to the upstream tunnel, a retainer is arranged on the side walls of the air duct, the retainer is used for keeping the fire prevention at the position where the surface is arranged in the direction parallel to the side walls of the air duct, the fire detector is a flame detector or a smoke detector, and the permanent magnet blocks and the magnetic attraction modules are additionally arranged, so that the degree of tight closure between the fire prevention center columns and 58 and/ frames can be increased when the.
To achieve the aforementioned purpose of , the present invention provides an air duct fire anti-cross-smoke device for controlling opening and closing of an air duct, comprising a controller, a frame, a fire detector for detecting a fire representation, a fire protection 1 openably and closably installed on a 0 frame, a 3 holder for holding a fire protection 2 in an open state at an open position of the open state, and a closing , a closing device for forcing the fire protection to be actuated to a closed state at least when the holder releases a state holding force for the fire protection , and a controller for outputting a release control signal to the holder when receiving a detection signal output by the fire detector for indicating occurrence of a fire, the release control signal for controlling the holder to release the state holding force for the fire protection .
When the fire detector detects a fire on the end side of the air channel, the controller controls the holder to release the holding of the fire protection , and drives the fire protection to be quickly closed under the driving of the closing device so as to close the air channel, block dense smoke and heat, and keep two different fire partition spaces communicated by the air channel in a physical partition state.
Specifically, the retainer is an electromagnetic release.
More specifically, the electromagnetic releaser is an electromagnetic suction releaser which can release the state retaining force on the fireproof when the power is cut off, so that the fire protection requirement of the power cut-off switch is better met while the structure of the retainer is simplified.
Preferably, the closure is a non-electrically-driven reset mechanism having a reset force that forces the fire protection to the closed position, and the retainer is used at least to overcome the reset force applied by the closure to retain the fire protection in the open position, thereby better fulfilling the fire protection requirements of the power shut-off .
In addition, preferred schemes are that an closing device is a hydraulic closing device, a retainer releases state holding force for fire prevention when power is cut off, the closing device is constructed by utilizing hydraulic driving, power supply is not needed in the closing process, the performance is stable, and the fire protection requirement of the power cut-off device is better compounded.
Another preferred schemes are that the air duct fire anti-cross smoke device comprises frame center posts, the fire protection is a double-fan split structure, in the frame and the fixed frame of the fire protection , is provided with a permanent magnet block, in addition is fixedly provided with a magnetic suction module which is attracted with the permanent magnet block when the fire protection is closed, the fixed frame is frame and/or frame center posts, and the fire detector is a flame detector or a smoke detector.
Drawings
FIG. 1 is a schematic view of a twin tunnel structure incorporating an embodiment of the twin tunnel complementary ventilation system of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 2;
FIG. 4 is a schematic perspective view of a fire and smoke crossing prevention device for an air duct according to an embodiment of the dual-tunnel complementary ventilation system of the present invention;
FIG. 5 is an enlarged view of a portion C of FIG. 4;
the system comprises a 01-downhill tunnel, a 02-uphill tunnel, a 1-double-tunnel complementary ventilation system, a 10-transverse complementary air channel, an 11-fan, a 12-air channel fire and smoke prevention device, a 20-controller, a 21-fire detector, a 3-fireproof , a 4- retainer, a 5-closed device, a 101-signal line, a 102-signal line, a 61- frame, a 62- frame center post, a 64-permanent magnet block and a 65-permanent magnet block.
Detailed Description
The present invention will be described in further with reference to the following examples and accompanying drawings.
Dual tunnel complementary ventilation system embodiments
Referring to fig. 1 to 5, the double tunnel complementary ventilation system 1 of the present invention includes a transverse complementary air duct 10 for communicating a downhill tunnel 01 and an uphill tunnel 02 arranged adjacently, a fan 11 installed in the transverse complementary air duct 10, and a duct fire anti-cross-smoke device 12 installed at an end of the transverse complementary air duct 10 adjacent to the downhill tunnel 01, the downhill tunnel 01 located on an upstream side of the transverse complementary air duct 10 constitutes an upstream tunnel in the present embodiment, and the uphill tunnel 02 constitutes a downstream tunnel in the present embodiment, along a flow direction of an air flow in the transverse complementary air duct 10 during ventilation, i.e., a direction indicated by an arrow located in the transverse complementary air duct 10 in the drawing.
In this embodiment, the fan 11 is constructed by using an axial flow fan and its supporting facilities.
The air flue fire and smoke cross-over prevention device 12 is used for controlling opening and closing of the air circulation state in the air flue of the transverse complementary air flue 10, and specifically comprises a controller 20, a fire detector 21, fire protection 3, a retainer 4 and a closure device 5, wherein fire protection 3 is located between the fan 11 and the downhill tunnel 01, and the opening direction of the fire protection 3 faces to an upstream tunnel.
The fire detector 21 is installed on the side wall of the down-hill tunnel 01, and the fire detector 21 is installed at a position on the upstream side of the transverse complementary duct 10 in general, in particular, at a position approximately 10 m from the transverse complementary duct 10 in the traveling direction of the air flow in the down-hill tunnel 01 as indicated by the arrow in the drawing, for detecting the fire representation in the upstream tunnel. Here, the "fire behavior" is configured as physical phenomena, such as smoke, flame, and high temperature, generated by a fire when the fire occurs, which can be detected by a corresponding sensor, and thus, the fire detector 21 may be specifically constructed by using a smoke detector, an ultraviolet flame detector, a temperature detector, and the like. The number of the fire detectors 21 and the specific installation positions are generally configured according to actual conditions, and are not limited to the exemplary number and the exemplary installation positions in the present embodiment.
The controller 20 is installed on the side wall of the downhill tunnel 01 or on the side wall of the lateral complementary wind tunnel 10, in this embodiment, on the side wall of the downhill tunnel 01, the fire detector 21 is electrically connected with the controller 20 through a signal line 101 so that the controller 20 can receive a detection signal outputted from the fire detector 21, the controller 20 is electrically connected with the two holders 4 through a signal line 102 so as to output a control signal for controlling the operation state of the holder 4 to the two holders 4.
In this embodiment, fire protection 3 is a two-leaf split structure that is mounted on the side walls of the air ducts of lateral complementary duct 10 by and center posts 62, specifically the hinged side frame of fire protection 3 is swingably mounted on frame 61 by a hinge or the like connection.
In this embodiment, the keeper 4 is constructed by an electromagnetic releaser, for example, an electromagnetic releaser or an electromagnetic absorbing and releasing device, the electromagnetic releaser includes an electromagnetic iron, a lever, a valve plate, a return spring, etc., the valve plate is fixed on end of the lever, the return spring is used to drive the lever to swing to a clamping position, during the use, the lock catch is manually inserted into the electromagnetic releaser and clamped by the valve plate, and in case of fire, the controller 20 controls the relay to supply power to the electromagnetic iron to magnetically attract the other end of the lever to drive the valve plate to release the clamping force to the lock catch, and in case of the electromagnetic absorbing and releasing device, the fireproof can be automatically absorbed and positioned at ordinary times, and when the electromagnet is de-energized, the retaining force to the fireproof is released, specifically, a module such as an iron block and a permanent magnet is installed on the fireproof , and when the magnet absorbed and released by the electromagnetic is energized, the module generates a magnetic force to magnetically attract the magnetic module to retain the fireproof at the electromagnetic force position.
The closure device 5 is at least configured to actuate the fire protection 13 to rotate from the open position to the closed position when the holder 4 releases the state retention force on the fire protection 0. in this embodiment, the hydraulic closure device is configured, wherein the hydraulic closure device is configured as a non-electrically actuated return mechanism in this embodiment, which provides a return force to close the fire protection . of course, other return mechanisms besides the hydraulic mechanism can be configured to provide a return force to close the fire protection to configure a non-electrically actuated return mechanism, such as a return mechanism, e.g., a spring, etc. of course, the closure device 5 can also be configured with an electrically driven device, wherein the operating state is controlled by the controller 20, specifically, when the controller 20 outputs a release control signal to the holder 4 for a predetermined period of time, and then outputs a close control signal to the closure device 5.
In operation, when the controller 20 receives a detection signal indicating that a fire is occurring from the fire detector 21, it outputs a release control signal to the holders 4, where the release control signal is used to control the holder 4 to release the state holding power of the corresponding fan fire protection 3, and specifically outputs a DC24V operating voltage to the holder 4 to instruct the holder 4 to operate, and the fire protection 3 that loses the state holding power is gradually closed under the traction of the closed device 5, usually only 5 seconds, so as to achieve the purpose of quickly preventing the smoke from escaping.
In order to further improve the effect of preventing smoke from escaping, a magnetic module is fixedly arranged on the frame of the fireproof , and a permanent magnet block 64 and a permanent magnet block 65 are correspondingly fixedly arranged on the 0 frame 61 and the 1 frame center post 62, wherein the magnetic module can be constructed by a permanent magnet or a metal block fixedly arranged at the edge of the fireproof 3, in the embodiment, the fireproof 3 is arranged into a metal frame structure, so that when the fireproof is closed, the fireproof 3 can be tensioned by steps, the gap between the center post 62 and the fireproof 3 of the frame 61, the frame center post 62 and the fireproof is reduced, and the smoke-proof effect is improved.
To meet the requirements of the power cut-off switch , the retainer 4 is preferably arranged to release the state retention force on the fire protection 3 when power is cut off, for example, by using the electromagnetic suction/release device described above, in which case an armature cooperating with an electromagnet is fixed at the edge of the fire protection 3, and the closure device is arranged as a non-electrically driven return mechanism with a return force for returning the fire protection 3 in the open state to the closed state, in which arrangement the retainer 4 is arranged to overcome the state return force applied by the non-electrically driven return mechanism to the fire protection 3 to retain the fire protection 3 in the open state.
Embodiment of smoke cross-over prevention device for air duct fire
In the above description of the embodiment of the double-tunnel complementary ventilation system, the structure of the embodiment of the air duct fire anti-smoke-mixing device of the present invention has been exemplarily described, and is not repeated herein.
The main idea of the utility model is to reduce the secondary disaster caused by the series flow of the smoke by arranging the fire anti-cross smoke device for opening and closing the flow state of the air channel, and the structures of the fire prevention , the closing device and the retainer have various obvious changes according to the concept, and are not limited to the exemplary structures described in the above embodiments.
Claims (10)
- The double-tunnel complementary ventilation system comprises a transverse complementary air duct for communicating two adjacent tunnels and a fan arranged in the transverse complementary air duct, and is characterized in that:the double-tunnel complementary ventilation system comprises an air duct fire and smoke prevention device for controlling the opening and closing of an air duct of the transverse complementary air duct;the air flue fire and smoke cross-over prevention device comprises a controller, a fire detector, a fire prevention , a retainer and a closing , wherein the fire detector is used for detecting fire manifestations in an upstream tunnel, the fire prevention is openably and closably installed on an air flue side wall of the transverse complementary air flue, the fire prevention 3632 retainer is used for retaining the fire prevention in an open state, and the closing is used for forcing the fire prevention to move to a closed state at least when the retainer releases state retaining force on the fire prevention ;the controller is configured to output a release control signal to the keeper upon receiving a detection signal from the fire detector indicating the occurrence of a fire, the release control signal being configured to control the keeper to release the state retaining force.
- 2. The dual tunnel complementary ventilation system of claim 1, wherein:the holder is an electromagnetic suction/release that releases the state retention force when de-energized.
- 3. The dual tunnel complementary ventilation system of claim 1, wherein:the closure is a non-electrically actuated return mechanism having a return force that urges the fire guard to a closed position, and the holder is at least operable to overcome the return force to retain the fire guard in the open position.
- 4. The dual tunnel complementary ventilation system of claim 3, wherein:the closure is a hydraulic closure and the retainer releases the state retention force when de-energized.
- 5. The dual tunnel complementary ventilation system of any one of claims 1 to 4 to , wherein:the air duct fire and smoke prevention and cross-smoke prevention device comprises a frame and a frame center post which are arranged on the side wall of the air duct, wherein the fireproof is of a double-sash folio structure, a person is provided with a permanent magnet block in a frame and a fixing frame of the fireproof , and a person is fixedly provided with a magnetic suction module which is attracted with the permanent magnet block when the fireproof is closed, wherein the fixing frame is the frame and/or the frame center post;the fire protection is opened towards the upstream tunnel, the fire protection is installed at the end side of the transverse complementary air duct adjacent to the upstream tunnel;the retainer is arranged on the air duct side wall, and the retainer is used for keeping the fireproof at a position where the surface is arranged along the direction parallel to the air duct side wall;the fire detector is a flame detector or a smoke detector.
- 6, kinds of wind channel fire prevention smoke crossing device for control, its characterized in that are opened and close to the wind channel:the air duct fire anti-cross-smoke device comprises a controller, an frame, a fire detector for detecting fire signs, a fire protection which can be installed on the frame in an opening and closing mode, a retainer for retaining the fire protection in an opening state at an opening position, and a closing device, wherein the closing device is used for forcing the fire protection to move to a closing state at least when the retainer releases a state retaining force for the fire protection ;the controller is configured to output a release control signal to the keeper upon receiving a detection signal from the fire detector indicating the occurrence of a fire, the release control signal being configured to control the keeper to release the state retaining force.
- 7. The fire and smoke crossing prevention device for the air duct according to claim 6, wherein:the holder is an electromagnetic suction/release that releases the state retention force when de-energized.
- 8. The fire and smoke crossing prevention device for the air duct according to claim 6, wherein:the closure is a non-electrically actuated return mechanism having a return force that urges the fire guard to a closed position, and the holder is at least operable to overcome the return force to retain the fire guard in the open position.
- 9. The fire and smoke crossing prevention device for the air duct according to claim 8, wherein:the closure is a hydraulic closure and the retainer releases the state retention force when de-energized.
- 10. A duct fire anti-cross-smoke apparatus according to any one of claims 6 to 9 to , wherein:the air duct fire and smoke prevention and cross-smoke prevention device comprises a frame center column, the fireproof is of a double-fan split structure, a person is provided with a permanent magnet block in a frame and a fixing frame of the fireproof , and a magnetic suction module which is attracted with the permanent magnet block when the fireproof is closed is fixedly arranged on another person;the fire detector is a flame detector or a smoke detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579120.XU CN210003321U (en) | 2019-04-25 | 2019-04-25 | double-tunnel complementary ventilation system and air duct fire anti-smoke-mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579120.XU CN210003321U (en) | 2019-04-25 | 2019-04-25 | double-tunnel complementary ventilation system and air duct fire anti-smoke-mixing device |
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| CN210003321U true CN210003321U (en) | 2020-01-31 |
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| CN201920579120.XU Active CN210003321U (en) | 2019-04-25 | 2019-04-25 | double-tunnel complementary ventilation system and air duct fire anti-smoke-mixing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958468A (en) * | 2019-04-25 | 2019-07-02 | 浙江省交通规划设计研究院有限公司 | A kind of complementary ventilating system in twin tunnel and the anti-smoke blowing device of air duct fire |
| CN114215576A (en) * | 2021-12-10 | 2022-03-22 | 北京住总建设安装工程有限责任公司 | Shock-absorbing noise-reducing ventilation system for subway tunnel |
-
2019
- 2019-04-25 CN CN201920579120.XU patent/CN210003321U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958468A (en) * | 2019-04-25 | 2019-07-02 | 浙江省交通规划设计研究院有限公司 | A kind of complementary ventilating system in twin tunnel and the anti-smoke blowing device of air duct fire |
| CN114215576A (en) * | 2021-12-10 | 2022-03-22 | 北京住总建设安装工程有限责任公司 | Shock-absorbing noise-reducing ventilation system for subway tunnel |
| CN114215576B (en) * | 2021-12-10 | 2024-04-05 | 北京住总建设安装工程有限责任公司 | Subway tunnel vibration/noise reduction type ventilation system |
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Address after: No.928 yuhangtang Road, Xihu District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang shuzhijiaoyuan Technology Co.,Ltd. Patentee after: Zhoushan Highway Administration Bureau Patentee after: ZHEJIANG University OF TECHNOLOGY Address before: 310006 No. 89 West Ring Road, Zhejiang, Hangzhou Patentee before: ZHEJIANG PROVINCIAL INSTITUTE OF COMMUNICATIONS PLANNING DESIGN & RESEARCH Co.,Ltd. Patentee before: Zhoushan Highway Administration Bureau Patentee before: ZHEJIANG University OF TECHNOLOGY |
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