CN113417687A - Injection induced ventilation smoke exhaust system applied to subway entrance and exit line - Google Patents
Injection induced ventilation smoke exhaust system applied to subway entrance and exit line Download PDFInfo
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- CN113417687A CN113417687A CN202110916877.5A CN202110916877A CN113417687A CN 113417687 A CN113417687 A CN 113417687A CN 202110916877 A CN202110916877 A CN 202110916877A CN 113417687 A CN113417687 A CN 113417687A
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- air valve
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- 238000009423 ventilation Methods 0.000 title claims abstract description 45
- 239000000779 smoke Substances 0.000 title claims abstract description 26
- 238000002347 injection Methods 0.000 title claims description 6
- 239000007924 injection Substances 0.000 title claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011144 upstream manufacturing Methods 0.000 abstract 2
- 238000009826 distribution Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/14—Air partitions; Air locks
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ventilation (AREA)
Abstract
A jet induced ventilation and smoke exhaust system applied to subway entrance and exit lines comprises 4 accident fans, 2 jet fans, 8 electric air valves, 2 pressurizing nozzles, a vertical air shaft and an air channel; two jet flow fans are arranged in the upstream tunnel and the downstream tunnel of the inlet and outlet line, and a pressurizing nozzle is arranged on an air duct at the air outlet end of a second accident fan and an air duct at the air outlet end of a fourth accident fan and is communicated with the upstream tunnel and the downstream tunnel of the inlet and outlet line. The invention has the beneficial effects that: the redundant jet flow fan at the tunnel portal of the subway entrance and exit line is eliminated, the construction cost of an entrance and exit line smoke prevention and discharge system is saved, and the fire safety level of the subway entrance and exit section line in China is improved; adopt this system configuration simultaneously can discharge the flue gas outdoor effectively.
Description
Technical Field
The invention relates to the technical field of tunnel smoke exhaust systems of subway underground section entrance and exit lines, and belongs to a jet induced ventilation smoke exhaust system applied to a subway entrance and exit line.
Background
With the increasingly rapid urbanization process and the increasing of urban scale in China, subways have been rapidly developed in China as a safe, convenient and quick transportation means for solving the urban traffic jam problem. The high subway construction cost increases the financial burden of subway cities, and the development of subways in China is severely restricted. Each equipment system of the subway is reasonably configured so as to be closer to the requirement of an operator, and each professional of the subway tries to reduce the cost of the subway on the premise of ensuring the functions and not violating the standard requirement. Subway fire smoke seriously threatens the safety of subway passengers, a subway tunnel smoke exhaust system is an important technical means for controlling the subway fire smoke, and the tunnel wind speed is higher than the critical fire wind speed, so that the subway tunnel smoke can be ensured not to flow back, and a smokeless escape route can be created for people evacuation.
The subway access line up-down tunnel is the passageway that underground vehicle came in and go out to ground parking area, and traditional subway access line tunnel smoke exhaust system design scheme sets up two sets of 4 efflux fans in front and back near the tunnel portal and prevents the auxiliary means that discharges fume as access section line, and efflux fan cost is not high, but efflux fan distribution cable cost is very high. If two groups of front and rear jet fans are arranged at the tunnel portal of the subway entrance and exit section line with the length of 2km, equipment and pipelines such as a double-cutting box, a jet fan electric control cabinet, a fire-resistant flame-retardant power cable and the like need to be arranged, and the total manufacturing cost of a jet fan distribution cable and matched equipment is nearly ten thousand yuan. Therefore, the design scheme of the subway entrance and exit section line smoke prevention and discharge system which is economical, reasonable and feasible in technology is provided, the construction cost of the subway entrance and exit section line smoke prevention and discharge system of newly built subway projects in China can be reduced, and the fire safety level of the subway entrance and exit section line in China is improved.
Disclosure of Invention
The invention aims to provide a jet-induced ventilation and smoke exhaust system applied to an access line of a subway, aiming at the defects of the prior art. The jet fan at the tunnel portal of the subway entrance and exit line is eliminated, the construction cost of an entrance and exit line smoke prevention and discharge system is saved, and the fire safety level of the subway entrance and exit section line in China is improved; adopt this system configuration simultaneously can discharge the flue gas outdoor effectively.
In order to achieve the purpose, the invention adopts the following design scheme:
a jet induced ventilation and smoke exhaust system applied to subway entrance and exit lines comprises 4 accident fans, 2 jet fans, 8 electric air valves, 2 pressurizing nozzles, a vertical air shaft and an air channel; the method is characterized in that: a fifth jet fan (5) is arranged near the starting point of the access line descending tunnel (23), a second jet fan (6) is arranged near the starting point of the access line ascending tunnel (25), a second accident fan (2) is arranged at a position, close to the access line descending tunnel (23), of the underground station (21) of the subway, a fourth accident fan (4) is arranged at a position, close to the access line ascending tunnel (25), of the underground station (21) of the subway, and a first accident fan (1) and a third accident fan (3) are respectively arranged outside two section tunnel mouths on one side of the section tunnel (22) between the stations of the underground station (21) of the subway; a thirteenth pressurizing nozzle (13) is arranged at the air outlet end of the second accident blower (2), a twelfth electric air valve (12) is arranged at the air inlet end of the thirteenth pressurizing nozzle (13), the air outlet of the thirteenth pressurizing nozzle (13) is communicated with the in-out line descending tunnel (23), and an eleventh electric air valve (11) is arranged between a twenty-sixth air channel (26) of the outlet air of the second accident blower (2) and the in-out line descending tunnel (23); an eighth electric air valve (8) is arranged at the air inlet end of the second accident fan (2), and a seventh electric air valve (7) is arranged between a twenty-seventh vertical air shaft (27) of the second accident fan (2) and the inlet and outlet line descending tunnel (23);
a twentieth pressurizing nozzle (20) is arranged at the air outlet end of the fourth accident fan (4), a nineteenth electric air valve (19) is arranged at the air inlet end of the twentieth pressurizing nozzle (20), the air outlet of the twentieth pressurizing nozzle (20) is communicated with the in-out on-line ascending tunnel (25), and an eighteenth electric air valve (18) is arranged between a twenty-eighth air channel (28) for the outlet air of the fourth accident fan (4) and the in-out on-line ascending tunnel (25); a fifteenth electric air valve (15) is arranged at the air inlet end of the fourth accident fan (4), and a fourteenth electric air valve (14) is arranged between a twenty-ninth vertical air shaft (29) of the fourth accident fan (4) and an ascending tunnel (25) of an inlet and outlet line;
air is supplied to the in-out on-line tunnel (25) by using a first accident fan (1), a second accident fan (2), a fifth jet flow fan (5), a twelfth electric air valve (12), an eleventh electric air valve (11) and a thirteenth pressurizing nozzle (13): air is supplied to an in-out line descending tunnel (23) by utilizing a third accident fan (3), a fourth accident fan (4), a sixth jet flow fan (6), a nineteenth electric air valve (19), an eighteenth electric air valve (18) and a twentieth pressurizing nozzle (20): increasing the longitudinal wind speed of the fire tunnel with thirteenth and twentieth pressurizing nozzles (13, 20); when the fire disaster does not happen to the access line tunnel, the eighth and fifteenth electric air valves (8, 15) are closed, and the seventh and fourteenth electric air valves (7, 14) and the twenty-seventh and twenty-ninth vertical air shafts (27, 29) are opened to meet the ventilation requirement of piston wind of the subway tunnel.
The thirteenth pressurizing nozzle (13) and the twentieth pressurizing nozzle (20) are trumpet-shaped, large openings are respectively connected with the twelfth electric air valve and the nineteenth electric air valve (12 and 19), and small openings are respectively communicated with the in-out line descending tunnel (23) and the in-out line ascending tunnel (25).
The seventh electric air valve (7) is used for communicating or closing a ventilation channel between the twenty-seventh vertical air shaft (27) and the access line descending tunnel (23), the eighth electric air valve (8) is used for communicating or closing a ventilation channel between the twenty-seventh vertical air shaft (27) and the second accident fan (2), the twelfth electric air valve (12) is used for communicating or closing a ventilation channel between the second accident fan (2) and the thirteenth pressurizing nozzle (13), and the eleventh electric air valve (11) is used for communicating or closing a ventilation channel between the second accident fan (2) and the access line descending tunnel (23); the fourteenth electric air valve (14) is used for communicating or closing a ventilation channel between the twenty-ninth vertical air shaft (29) and the in-out line ascending tunnel (25), the fifteenth electric air valve (15) is used for communicating or closing a ventilation channel between the twenty-ninth vertical air shaft (29) and the fourth accident fan (4), the nineteenth electric air valve (19) is used for communicating or closing a ventilation channel between the fourth accident fan (4) and the twentieth pressurizing nozzle (20), and the eighteenth electric air valve (18) is used for communicating or closing a ventilation channel between the fourth accident fan (4) and the in-out line ascending tunnel (25).
When a fire disaster occurs in the in-out tunnel, the eighth electric air valve (8), the twelfth electric air valve (12), the fifteenth electric air valve (15) and the nineteenth electric air valve (19) are opened, the seventh electric air valve (7), the eleventh electric air valve (11), the fourteenth electric air valve (14) and the eighteenth electric air valve (18) are closed, and the first accident fan (1), the second accident fan (2), the third accident fan (3), the fourth accident fan (4), the fifth jet fan (5) and the sixth jet fan (6) are all started for increasing the longitudinal wind speed in the in-out tunnel.
When a fire disaster does not happen to the subway entrance and exit line tunnel, the eighth electric air valve (8), the eleventh electric air valve (11), the twelfth electric air valve (12), the fifteenth electric air valve (15), the eighteenth electric air valve (18) and the nineteenth electric air valve (19) are closed; the seventh electric air valve (7) and the fourteenth electric air valve (14) are opened and used for meeting the ventilation requirements of piston air of the up-down subway tunnel; the first accident fan (1), the second accident fan (2), the third accident fan (3) and the fourth accident fan (4) are not started.
The invention has the beneficial effects that: the jet fan at the tunnel portal of the subway entrance and exit line is eliminated, the construction cost of an entrance and exit line smoke prevention and discharge system is saved, and the fire safety level of the subway entrance and exit section line in China is improved; adopt this system configuration simultaneously can discharge the flue gas outdoor effectively.
Drawings
Fig. 1 is a schematic view of a jet induced ventilation and smoke exhaust system applied to an access line of a subway according to the present invention.
Figure 2 is a schematic view of an in-out down-line tunnel pressurized nozzle smoke ventilation system.
Figure 3 is a schematic view of a tunnel pressurized nozzle smoke ventilation system on an in-out line.
Reference numerals:
1. a first accident fan;
2. a second accident blower;
3. a third accident blower;
4. a fourth accident blower;
5. a fifth jet fan;
6. a sixth jet fan;
7. a seventh electric blast gate;
8. an eighth electric blast gate;
9. a muffler;
10. a muffler;
11. an eleventh electric blast valve;
12. a twelfth electric blast valve;
13. a thirteenth pressurizing nozzle;
14. a fourteenth electric blast valve;
15. a fifteenth electric damper;
16. a muffler;
17. a muffler;
18. an eighteenth electric air valve;
19. a nineteenth electric air valve;
20. a twentieth pressurizing nozzle;
21. a subway underground station;
22. inter-section tunnels between stations;
23. an entrance-exit downlink tunnel;
24. an above-ground parking lot;
25. the entrance and exit line goes up the tunnel;
26. a twenty-sixth air duct;
27. a twenty-seventh vertical air shaft;
28. a twenty-eighth air duct;
29. twenty-ninth vertical air shaft.
Detailed Description
Referring to fig. 1, 2 and 3: a jet induced ventilation and smoke exhaust system applied to subway entrance and exit lines comprises 4 accident fans, 2 jet fans, 8 electric air valves, 2 pressurizing nozzles, a vertical air shaft and an air channel; a fifth jet fan 5 is arranged near the starting point of a down tunnel 23 of an access line, a second jet fan 6 is arranged near the starting point of a down tunnel 25 of the access line, a second accident fan 2 is arranged at a position, close to the down tunnel 23 of the access line, of an underground station 21 of a subway, a fourth accident fan 4 is arranged at a position, close to the up tunnel 25 of the access line, of the underground station 21 of the subway, and a first accident fan 1 and a third accident fan 3 are respectively arranged outside two section tunnel mouths on one side of an section tunnel 22 between stations of the underground station 21 of the subway; a thirteenth pressurizing nozzle 13 is arranged at the air outlet end of the second accident fan 2, a twelfth electric air valve 12 is arranged at the air inlet end of the thirteenth pressurizing nozzle 13, the air outlet of the thirteenth pressurizing nozzle 13 is communicated with the in-out line descending tunnel 23, and an eleventh electric air valve 11 is arranged between a twenty-sixth air channel 26 of the outlet air of the second accident fan 2 and the in-out line descending tunnel 23; an eighth electric air valve 8 is arranged at the air inlet end of the second accident fan 2, and a seventh electric air valve 7 is arranged between a twenty-seventh vertical air shaft 27 of the second accident fan 2 and the inlet and outlet line descending tunnel 23;
a twentieth pressurizing nozzle 20 is arranged at the air outlet end of the fourth accident fan 4, a nineteenth electric air valve 19 is arranged at the air inlet end of the twentieth pressurizing nozzle 20, the air outlet of the twentieth pressurizing nozzle 20 is communicated with the in-out on-line ascending tunnel 25, and an eighteenth electric air valve 18 is arranged between a twenty-eighth air duct 28 for outlet air of the fourth accident fan 4 and the in-out on-line ascending tunnel 25; a fifteenth electric air valve 15 is arranged at the air inlet end of the fourth accident fan 4, and a fourteenth electric air valve 14 is arranged between a twenty-ninth vertical air shaft 29 of the fourth accident fan 4 and the in-out line ascending tunnel 25;
air is supplied to the in-out on-line tunnel 25 by the first and second accident blowers 1, 2, the fifth jet blower 5, the twelfth and eleventh electric air valves 12, 11 and the thirteenth pressurizing nozzle 13: the third and fourth accident blowers 3, 4, the sixth jet blower 6, the nineteenth and eighteenth electric air valves 19, 18 and the twentieth pressurizing nozzle 20 are used for supplying air to the in-out line descending tunnel 23: increasing the longitudinal wind speed of the fire tunnel using the thirteenth and twentieth pressurizing nozzles 13, 20; when the fire disaster does not happen to the entrance and exit line tunnel, the eighth and fifteenth electric air valves 8 and 15 are closed, and the seventh and fourteenth electric air valves 7 and 14 and the twenty-seventh and twenty-ninth vertical air shafts 27 and 29 are opened to meet the ventilation requirement of the piston air of the subway tunnel.
The thirteenth pressurizing nozzle 13 and the twentieth pressurizing nozzle 20 are horn-shaped, the large openings of the horn-shaped pressurizing nozzles are respectively connected with the twelfth electric air valve 12 and the nineteenth electric air valve 19, and the small openings of the horn-shaped pressurizing nozzles are respectively communicated with the in-out line descending tunnel 23 and the in-out line ascending tunnel 25.
The seventh electric air valve 7 is used for communicating or closing a ventilation channel between the twenty-seventh vertical air shaft 27 and the access line descending tunnel 23, the eighth electric air valve 8 is used for communicating or closing a ventilation channel between the twenty-seventh vertical air shaft 27 and the second accident air blower 2, the twelfth electric air valve 12 is used for communicating or closing a ventilation channel between the second accident air blower 2 and the thirteenth pressurizing nozzle 13, and the eleventh electric air valve 11 is used for communicating or closing a ventilation channel between the second accident air blower 2 and the access line descending tunnel 23; the fourteenth electric air valve 14 is used for communicating or closing a ventilation channel between the twenty ninth vertical air shaft 29 and the in-out on-line tunnel 25, the fifteenth electric air valve 15 is used for communicating or closing a ventilation channel between the twenty ninth vertical air shaft 29 and the fourth accident fan 4, the nineteenth electric air valve 19 is used for communicating or closing a ventilation channel between the fourth accident fan 4 and the twentieth pressurizing nozzle 20, and the eighteenth electric air valve 18 is used for communicating or closing a ventilation channel between the fourth accident fan 4 and the in-out on-line tunnel 25.
When a fire disaster occurs in the in-out tunnel, the eighth electric air valve 8, the twelfth electric air valve 12, the fifteenth electric air valve 15 and the nineteenth electric air valve 19 are opened, the seventh electric air valve 7, the eleventh electric air valve 11, the fourteenth electric air valve 14 and the eighteenth electric air valve 18 are closed, and the first accident fan 1, the second accident fan 2, the third accident fan 3, the fourth accident fan 4, the fifth jet fan 5 and the sixth jet fan 6 are all started for increasing the longitudinal wind speed in the in-out tunnel.
When a fire disaster does not happen to the subway entrance and exit line tunnel, the eighth electric air valve 8, the eleventh electric air valve 11, the twelfth electric air valve 12, the fifteenth electric air valve 15, the eighteenth electric air valve 18 and the nineteenth electric air valve 19 are closed; the seventh electric air valve 7 and the fourteenth electric air valve 14 are opened and used for meeting the ventilation requirement of piston air of the uplink and downlink subway tunnels; the first accident fan 1, the second accident fan 2, the third accident fan 3 and the fourth accident fan 4 are not started.
In order to reduce the noise of the accident fan, mufflers 9, 10, 16, 17 are installed at both ends of the accident fan.
Underground subway vehicles can be tunneled out to a ground parking lot 24 through an access line.
The invention is defined by the claims. Based on this, it should be understood that various obvious changes and modifications can be made by those skilled in the art, which are within the main spirit and scope of the present invention.
Claims (5)
1. A jet induced ventilation and smoke exhaust system applied to subway entrance and exit lines comprises 4 accident fans, 2 jet fans, 8 electric air valves, 2 pressurizing nozzles, a vertical air shaft and an air channel; the method is characterized in that: a fifth jet fan (5) is arranged near the starting point of the access line descending tunnel (23), a second jet fan (6) is arranged near the starting point of the access line ascending tunnel (25), a second accident fan (2) is arranged at a position, close to the access line descending tunnel (23), of the underground station (21) of the subway, a fourth accident fan (4) is arranged at a position, close to the access line ascending tunnel (25), of the underground station (21) of the subway, and a first accident fan (1) and a third accident fan (3) are respectively arranged outside two section tunnel mouths on one side of the section tunnel (22) between the stations of the underground station (21) of the subway; a thirteenth pressurizing nozzle (13) is arranged at the air outlet end of the second accident blower (2), a twelfth electric air valve (12) is arranged at the air inlet end of the thirteenth pressurizing nozzle (13), the air outlet of the thirteenth pressurizing nozzle (13) is communicated with the in-out line descending tunnel (23), and an eleventh electric air valve (11) is arranged between a twenty-sixth air channel (26) of the outlet air of the second accident blower (2) and the in-out line descending tunnel (23); an eighth electric air valve (8) is arranged at the air inlet end of the second accident fan (2), and a seventh electric air valve (7) is arranged between a twenty-seventh vertical air shaft (27) of the second accident fan (2) and the inlet and outlet line descending tunnel (23);
a twentieth pressurizing nozzle (20) is arranged at the air outlet end of the fourth accident fan (4), a nineteenth electric air valve (19) is arranged at the air inlet end of the twentieth pressurizing nozzle (20), the air outlet of the twentieth pressurizing nozzle (20) is communicated with the in-out on-line ascending tunnel (25), and an eighteenth electric air valve (18) is arranged between a twenty-eighth air channel (28) for the outlet air of the fourth accident fan (4) and the in-out on-line ascending tunnel (25); a fifteenth electric air valve (15) is arranged at the air inlet end of the fourth accident fan (4), and a fourteenth electric air valve (14) is arranged between a twenty-ninth vertical air shaft (29) of the fourth accident fan (4) and an ascending tunnel (25) of an inlet and outlet line;
air is supplied to the in-out on-line tunnel (25) by using a first accident fan (1), a second accident fan (2), a fifth jet flow fan (5), a twelfth electric air valve (12), an eleventh electric air valve (11) and a thirteenth pressurizing nozzle (13): air is supplied to an in-out line descending tunnel (23) by utilizing a third accident fan (3), a fourth accident fan (4), a sixth jet flow fan (6), a nineteenth electric air valve (19), an eighteenth electric air valve (18) and a twentieth pressurizing nozzle (20): increasing the longitudinal wind speed of the fire tunnel with thirteenth and twentieth pressurizing nozzles (13, 20); when the fire disaster does not happen to the access line tunnel, the eighth and fifteenth electric air valves (8, 15) are closed, and the seventh and fourteenth electric air valves (7, 14) and the twenty-seventh and twenty-ninth vertical air shafts (27, 29) are opened to meet the ventilation requirement of piston wind of the subway tunnel.
2. The injection induced ventilation and smoke exhaust system applied to the subway entrance and exit line according to claim 1, wherein: the thirteenth pressurizing nozzle (13) and the twentieth pressurizing nozzle (20) are trumpet-shaped, the large openings of the thirteenth pressurizing nozzle and the twentieth pressurizing nozzle are respectively connected with the twelfth electric air valve and the nineteenth electric air valve (12, 19), and the small openings of the thirteenth pressurizing nozzle and the twentieth pressurizing nozzle are respectively communicated with the in-out line descending tunnel (23) and the in-out line ascending tunnel (25).
3. The injection induced ventilation and smoke exhaust system applied to the subway entrance and exit line according to claim 2, wherein: the seventh electric air valve (7) is used for communicating or closing a ventilation channel between the twenty-seventh vertical air shaft (27) and the access line descending tunnel (23), the eighth electric air valve (8) is used for communicating or closing a ventilation channel between the twenty-seventh vertical air shaft (27) and the second accident fan (2), the twelfth electric air valve (12) is used for communicating or closing a ventilation channel between the second accident fan (2) and the thirteenth pressurizing nozzle (13), and the eleventh electric air valve (11) is used for communicating or closing a ventilation channel between the second accident fan (2) and the access line descending tunnel (23); the fourteenth electric air valve (14) is used for communicating or closing a ventilation channel between the twenty-ninth vertical air shaft (29) and the in-out line ascending tunnel (25), the fifteenth electric air valve (15) is used for communicating or closing a ventilation channel between the twenty-ninth vertical air shaft (29) and the fourth accident fan (4), the nineteenth electric air valve (19) is used for communicating or closing a ventilation channel between the fourth accident fan (4) and the twentieth pressurizing nozzle (20), and the eighteenth electric air valve (18) is used for communicating or closing a ventilation channel between the fourth accident fan (4) and the in-out line ascending tunnel (25).
4. The injection induced ventilation and smoke exhaust system applied to the subway entrance and exit line according to claim 3, wherein: when a fire disaster happens to the in-out tunnel, the eighth electric air valve (8), the twelfth electric air valve (12), the fifteenth electric air valve (15) and the nineteenth electric air valve (19) are opened, the seventh electric air valve (7), the eleventh electric air valve (11), the fourteenth electric air valve (14) and the eighteenth electric air valve (18) are closed, and the first accident fan (1), the second accident fan (2), the third accident fan (3), the fourth accident fan (4), the fifth jet fan (5) and the sixth jet fan (6) are all started for increasing the longitudinal wind speed in the in-out tunnel.
5. The injection induced ventilation and smoke exhaust system applied to the subway entrance and exit line according to claim 3, wherein: when fire disasters do not happen to the subway entrance and exit line tunnel, the eighth electric air valve (8), the eleventh electric air valve (11), the twelfth electric air valve (12), the fifteenth electric air valve (15), the eighteenth electric air valve (18) and the nineteenth electric air valve (19) are closed; the seventh electric air valve (7) and the fourteenth electric air valve (14) are opened and used for meeting the ventilation requirements of piston air of the up-down subway tunnel; the first accident fan (1), the second accident fan (2), the third accident fan (3) and the fourth accident fan (4) are not started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110916877.5A CN113417687A (en) | 2021-08-11 | 2021-08-11 | Injection induced ventilation smoke exhaust system applied to subway entrance and exit line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110916877.5A CN113417687A (en) | 2021-08-11 | 2021-08-11 | Injection induced ventilation smoke exhaust system applied to subway entrance and exit line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113417687A true CN113417687A (en) | 2021-09-21 |
Family
ID=77719702
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110916877.5A Pending CN113417687A (en) | 2021-08-11 | 2021-08-11 | Injection induced ventilation smoke exhaust system applied to subway entrance and exit line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113417687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135963A (en) * | 2021-11-18 | 2022-03-04 | 郑州地铁集团有限公司 | New wind channel and urgent sparse mouthful co-construction structure for subway |
-
2021
- 2021-08-11 CN CN202110916877.5A patent/CN113417687A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135963A (en) * | 2021-11-18 | 2022-03-04 | 郑州地铁集团有限公司 | New wind channel and urgent sparse mouthful co-construction structure for subway |
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