CN103883549B - Device and method for testing back pressures of fans of tunnels of subways - Google Patents
Device and method for testing back pressures of fans of tunnels of subways Download PDFInfo
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- CN103883549B CN103883549B CN201410059307.9A CN201410059307A CN103883549B CN 103883549 B CN103883549 B CN 103883549B CN 201410059307 A CN201410059307 A CN 201410059307A CN 103883549 B CN103883549 B CN 103883549B
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- air
- valve
- fan
- back pressure
- test
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a device for testing back pressures of fans of tunnels of subways. The device comprises a main testing air channel, a tested fan and an auxiliary air channel. The tested fan is connected onto the main testing air channel, a testing sensor is arranged in the tested fan, an auxiliary fan is connected onto the auxiliary air channel, the main testing air channel is communicated with the auxiliary air channel via a first transverse air pipe and a second transverse air pipe respectively, and the auxiliary fan is arranged between the first transverse air pipe and the second transverse air pipe; a second air valve is arranged in the first transverse air pipe, and a third air valve is arranged in the second transverse air pipe; a first air valve and a fourth air valve are respectively arranged at two ends of the auxiliary air channel and are respectively arranged on the outer side of the first transverse air pipe and the outer side of the second transverse air pipe. The device has the advantages that positive and negative back pressures on the tested fan can be generated under the long-term forward rotation actions of the auxiliary fan and the opening and closing effects of the air valves and can be switched over within 6-7 seconds under the control owing to the fact that opening and closing time of the air valves can be controlled and is within the range of 6-7 seconds, accordingly, the tested fan is in a state close to an actual running state, and a test result is true and reliable.
Description
Technical field
The present invention relates to a kind of subway tunnel fan back pressure test device and its test method, it is adaptable to underground fan
Back pressure test, belong to blower fan and ventilating engineering technical field.
Background technology
According to the development form of current domestic track traffic, the subway of each big and medium-sized cities is more and more, different kinds of railways, highway
Tunnel is increasingly longer, and increasing subway tunnel fan is in subway, railway, the ventilating system of vcehicular tunnel in occupation of important
Status.When vehicle roll away from tunnel into station with roll away from station into tunnel when, powerful Piston Action Wind can be produced in tunnel.
For tunnel blower, Piston Action Wind will produce the pressure of+200～+500Pa and -300Pa～-700Pa to tunnel blower.By
In tunnel blower during the entire process of tunnel operation, continuously normally run.Therefore detection tunnel blower can meet 6～
Specified from+200～+500Pa to -300Pa according to subway tunnel fan technical requirements in 7 seconds～back pressure of -700Pa under normally transport
OK, become the important indicator of detection tunnel blower.
Existing fan test method is according to GB GB1236-2000《Industrial ventilation machine is tried with standardization air channel
Test》.For the test device of this kind of axial flow blower can increase the pressure change that accessory fan comes in replenishment system in GB, but
It is that accessory fan can only complete to supplement the pressure in single direction in system.Moreover, no matter accessory fan is using startup, stopping
Or rotating switching, can not in 6～7 seconds complete paired systems pressure variations influence process.
The content of the invention
To overcome drawbacks described above, the present invention is intended to provide one kind can be during simulation tunnel fan operation, by tunnel
The truth of piston wind effect, meet in 6～7 seconds from+200～+500Pa to -300Pa～economy of -700Pa
Assay device and test method, carry out the back pressure test of tunnel blower.
To reach above-mentioned purpose, the technical solution used in the present invention is：A kind of subway tunnel fan back pressure test device, bag
A master trip air channel is included, tested blower fan on the master trip air channel, is connected with, test sensing in the master trip air channel, is provided with
Device, the subway tunnel fan back pressure test device of the present invention are connected with one on the auxiliary air channel also including an auxiliary air channel
Platform accessory fan, the master trip air channel passes through beam wind pipe one respectively with auxiliary air channel and beam wind pipe two is connected, the auxiliary
Blower fan is placed between beam wind pipe one and beam wind pipe two；An air-valve two is provided with the beam wind pipe one, is set in the beam wind pipe two
There is an air-valve three；Two ends in the auxiliary air channel are respectively equipped with air-valve one and air-valve four, and the air-valve one and air-valve four are distinguished
It is placed in the outside of beam wind pipe one and beam wind pipe two.
Current collector, throttling arrangement and honeycomb screen are additionally provided with the master trip air channel.
The present invention subway tunnel fan back pressure test device also include a control centre, the control centre respectively with
The connection of tested blower fan, accessory fan, air-valve one, air-valve two, air-valve three and four signal of air-valve.
The subway tunnel fan back pressure test device of the present invention, its test method is：
Malleation back pressure test：Air-valve one, air-valve two, air-valve three and air-valve four are closed, tested blower fan is opened, is waited tested blower fan
After normal operation, air-valve one and air-valve three are opened successively, and opens accessory fan, the airflow direction of accessory fan and tested blower fan
Airflow direction it is consistent, the data of read test induction apparatuss；
Negative pressure back pressure test：In 6-7 seconds, air-valve four is opened successively, air-valve three is closed, air-valve two is opened, is closed
Close air-valve one, the data of read test induction apparatuss.
Before positive and negative back pressure test, the spacing debugging of advanced sector-style valve one, air-valve two, air-valve three and air-valve four, specifically
For：
Air-valve one, air-valve two, air-valve three and air-valve four are closed, tested blower fan is opened, after waiting tested blower fan to run well, is read
Take the data of test induction apparatuss and record forms record data one；Air-valve one and air-valve three are opened successively, and open accessory fan,
The airflow direction of accessory fan is consistent with the airflow direction of tested blower fan, and the data of read test induction apparatuss simultaneously record to form record
Data two；Record data one, two is contrasted, positive back pressure value is drawn, according to positive back pressure value adjusting air valve one and air-valve three
Open position, until when positive back pressure value reaches test standard value, carrying out to air-valve one and air-valve three spacing；
Open air-valve four, close air-valve three, open air-valve two, close air-valve one, the data shape of read test induction apparatuss
Into record data three, record data one, three is contrasted, negative back pressure value is drawn, according to negative back pressure value adjusting air valve four and wind
The open position of valve two, until when negative back pressure value reaches test standard value, carrying out to air-valve four and air-valve two spacing.
The subway tunnel fan back pressure test device and its test method of the present invention are employed, using the long-term of accessory fan
Rotating forward and the positive and negative back pressure opened and closed to realize tested blower fan of air-valve, as the opening and closing time of air-valve was can be controlled in the 6-7 seconds,
So that tested blower fan can also be controlled within the 6-7 seconds, closer to actual motion shape from positive back pressure to the transformation period of negative back pressure
State so that the result of test is more true and reliable.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1- master trips air channel, the tested blower fans of 2-, 3- auxiliary air channel, 4- accessory fans, 5- beam wind pipe one, 6- beam wind
Pipe two, 7- air-valves two, 8- air-valves three, 9- air-valves one, 10- air-valves four, 11- test induction apparatuss, 12- current collectors, 13- throttling dresses
Put, 14- honeycomb screens.
Specific embodiment
As shown in figure 1, the invention discloses a kind of subway tunnel fan back pressure test device, including a master trip air channel
1, tested blower fan 2 is connected with the master trip air channel 1, test induction apparatuss 11 is provided with the master trip air channel 1, by test
Induction apparatuss 11 can measure static pressure when tested blower fan 2 runs, the performance indications such as wind speed in real time.Master trip air channel 1 need to from quilt
Survey the standard air chute that 2 model of blower fan matches.
The innovative point of the subway tunnel fan back pressure test device of the present invention essentially consists in it also including an auxiliary air channel
3, an accessory fan 4 is connected with the auxiliary air channel 3, the master trip air channel 1 passes through beam wind pipe respectively with auxiliary air channel 3
One 5 are connected with beam wind pipe 26, and the accessory fan 4 is placed between beam wind pipe 1 and beam wind pipe 26；The beam wind pipe 1
An air-valve 27 is inside provided with, in the beam wind pipe 26, an air-valve 38 is provided with；Two ends in the auxiliary air channel 3 are respectively equipped with
Air-valve 1 and air-valve 4 10, the air-valve 1 and air-valve 4 10 are respectively placed in the outside of beam wind pipe 1 and beam wind pipe 26.
It is divided into positive back pressure test with negative back pressure test during concrete test.
Malleation back pressure test：Close air-valve 1, air-valve 27, air-valve 38 and air-valve 4 10, open tested blower fan 2, wait by
After surveying the normal operation of blower fan 2, air-valve 1 and air-valve 38 are opened successively, and opens accessory fan 4, the air-flow side of accessory fan 4
To consistent with the airflow direction of tested blower fan 2；Now, air-flow enters auxiliary air channel 3 from air-valve 1, and Jing accessory fans 4 pressurize
Master trip air channel 1 is flowed to from beam wind pipe 26 afterwards, is incorporated in the middle of the air-flow in master trip air channel 1, the air-flow in master trip air channel 1 is entered
Row pressurization, i.e., add a positive back pressure to tested blower fan 2, and then the data of read test induction apparatuss 11, are that tested blower fan 2 exists
By performance parameter during positive back pressure；
Negative pressure back pressure test：In 6-7 seconds, air-valve 4 10 is opened successively, air-valve 38 is closed, air-valve two is opened
7th, close air-valve 1；Now, accessory fan 4 reversely extracts the air-flow in master trip air channel 1, and Jing beam wind pipe 1 passes through air-valve two
7 flow into auxiliary air channel 3, and flow out from air-valve 4 10 Jing after accessory fan 4 pressurizes；As accessory fan 4 reversely extracts master trip
Air-flow in air channel 1, reduces pressure to the air-flow in master trip air channel 1, even if tested blower fan 2 adds a negative back pressure, then
The data of read test induction apparatuss 11, are performance parameter of the tested blower fan 2 when by negative back pressure.
Generally before positive and negative back pressure test is carried out, air-valve 1, air-valve 27, air-valve 38 and air-valve 4 10 is first carried out
Spacing debugging, specially：
The spacing debugging of positive back pressure test：Air-valve 1, air-valve 27, air-valve 38 and air-valve 4 10 are closed, tested blower fan is opened
2, after waiting tested blower fan 2 to run well, the data of read test induction apparatuss 11 are simultaneously recorded and form record data one；Wind is opened successively
Valve 1 and air-valve 38, and accessory fan 4 is opened, the airflow direction of accessory fan 4 is consistent with the airflow direction of tested blower fan 2,
The data of read test induction apparatuss 11 record forms record data two；Record data one, two is contrasted, positive back pressure is drawn
Value, according to positive back pressure value adjusting air valve 1 and the open position of air-valve 38, until when positive back pressure value reaches test standard value, it is right
Air-valve 1 and air-valve 38 carry out spacing；Air-valve 1 and air-valve 38 after spacing debugging is carried out, later every time to model
Tested blower fan 2 when carrying out positive back pressure test, when restraining position is opened to, positive back pressure value is reached for air-valve 1 and air-valve 38
Test standard value.When the model of tested blower fan 2 or accessory fan 4 changes, the spacing of positive back pressure test need to be re-started
Debugging.
The spacing debugging of negative back pressure test：Open air-valve 4 10, close air-valve 38, open air-valve 27, close air-valve 1,
The data of read test induction apparatuss 11 simultaneously form record data three, and record data one, three is contrasted, negative back pressure value is drawn,
According to negative back pressure value adjusting air valve 4 10 and the open position of air-valve 27, until when negative back pressure value reaches test standard value, to wind
Valve 4 10 and air-valve 27 carry out spacing.Air-valve 4 10 and air-valve 27 after spacing debugging is carried out, later every time to model
Tested blower fan 2 when carrying out negative back pressure test, when restraining position is opened to, negative back pressure value is arrived for air-valve 4 10 and air-valve 27
Up to test standard value.When the model of tested blower fan 2 or accessory fan 4 changes, the limit of negative back pressure test need to be re-started
Position debugging.
Another innovative point of the subway tunnel fan back pressure test device of the present invention is to go back on the master trip air channel 1
It is provided with current collector 12, throttling arrangement 13 and honeycomb screen 14.Generally current collector 12, throttling arrangement 13 and honeycomb screen 14 from master trip
To setting gradually between beam wind pipe 1, the current collector 12 is arranged on the air inlet in master trip air channel 1 to the air inlet in air channel 1, right
Air-flow carries out afflux and pressurization is flowed in master trip air channel 1, the resistance of 13 adjustable main test air way 1 of the throttling arrangement,
Tested blower fan 2 is made to operate under the resistive state as actual condition, the honeycomb screen 14 can be to the gas in master trip air channel 1
Stream carries out rectification, makes air current flow more smooth.
The subway tunnel fan back pressure test device of the present invention can also arrange a control centre, control centre's difference
It is connected with tested blower fan 2, accessory fan 4, air-valve 1, air-valve 27, air-valve 38 and 4 10 signal of air-valve.By control centre,
The keying of tested blower fan 2, accessory fan 4, air-valve 1, air-valve 27, air-valve 38 and air-valve 4 10 can be automatically controlled,
To guarantee that switching in the standard time for positive and negative back pressure test completes.
Claims (5)
1. a kind of subway tunnel fan back pressure test device, an including master trip air channel (1), on the master trip air channel (1)
It is connected with tested blower fan (2), the master trip air channel (1) and is provided with test induction apparatuss (11), it is characterised in that it also includes one
Individual auxiliary air channel (3), is connected with an accessory fan (4), the master trip air channel (1) and auxiliary on the auxiliary air channel (3)
Air channel (3) is connected with beam wind pipe two (6) by beam wind pipe one (5) respectively, and the accessory fan (4) is placed in beam wind pipe one (5)
And beam wind pipe two (6) between；An air-valve two (7) is provided with the beam wind pipe one (5), in the beam wind pipe two (6), one is provided with
Individual air-valve three (8)；Two ends of the auxiliary air channel (3) are respectively equipped with air-valve one (9) and air-valve four (10), the air-valve one (9)
The outside of beam wind pipe one (5) and beam wind pipe two (6) is respectively placed in air-valve four (10).
2. subway tunnel fan back pressure test device according to claim 1, it is characterised in that the master trip air channel (1)
On be additionally provided with current collector (12), throttling arrangement (13) and honeycomb screen (14).
3. subway tunnel fan back pressure test device according to claim 1, it is characterised in that it is also controlled including
Center, the control centre respectively with tested blower fan (2), accessory fan (4), air-valve one (9), air-valve two (7), air-valve three (8)
Connect with four (10) signal of air-valve.
4. subway tunnel fan back pressure test device according to claim 1, its test method is：
Malleation back pressure test：Air-valve one (9), air-valve two (7), air-valve three (8) and air-valve four (10) are closed, tested blower fan is opened
(2), after, waiting tested blower fan (2) to run well, air-valve one (9) and air-valve three (8) are opened successively, and opens accessory fan (4), it is auxiliary
Help the airflow direction of blower fan (4) consistent with the airflow direction of tested blower fan (2), the data of read test induction apparatuss (11)；
Negative pressure back pressure test：In 6-7 seconds, air-valve four (10) is opened successively, air-valve three (8) is closed, air-valve two is opened
(7) air-valve one (9), the data of read test induction apparatuss (11) are closed,.
5. test method according to claim 4, it is characterised in that before malleation, negative pressure back pressure test, advanced sector-style valve
One (9), the spacing debugging of air-valve two (7), air-valve three (8) and air-valve four (10), specially：
Air-valve one (9), air-valve two (7), air-valve three (8) and air-valve four (10) are closed, tested blower fan (2) is opened, is waited tested blower fan
(2), after running well, the data of read test induction apparatuss (11) are simultaneously recorded and form record data one；Air-valve one (9) is opened successively
With air-valve three (8), and accessory fan (4) is opened, the airflow direction of accessory fan (4) and the airflow direction one of tested blower fan (2)
Cause, the data of read test induction apparatuss (11) are simultaneously recorded and form record data two；Record data one, two is contrasted, is drawn
Malleation back pressure value, according to malleation back pressure value adjusting air valve one (9) and the open position of air-valve three (8), until malleation back pressure value is arrived
During up to test standard value, air-valve one (9) and air-valve three (8) are carried out spacing；
Open air-valve four (10), close air-valve three (8), open air-valve two (7), close air-valve one (9), read test induction apparatuss
(11) data simultaneously form record data three, and record data one, three is contrasted, negative pressure back pressure value is drawn, are carried on the back according to negative pressure
The open position of pressure value adjusting air valve four (10) and air-valve two (7), until when negative pressure back pressure value reaches test standard value, to air-valve
Four (10) and air-valve two (7) carry out it is spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059307.9A CN103883549B (en) | 2014-02-21 | 2014-02-21 | Device and method for testing back pressures of fans of tunnels of subways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059307.9A CN103883549B (en) | 2014-02-21 | 2014-02-21 | Device and method for testing back pressures of fans of tunnels of subways |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103883549A CN103883549A (en) | 2014-06-25 |
| CN103883549B true CN103883549B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410059307.9A Active CN103883549B (en) | 2014-02-21 | 2014-02-21 | Device and method for testing back pressures of fans of tunnels of subways |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4177474B1 (en) * | 2021-11-03 | 2024-02-21 | Talleres Zitrón, S.A. | Test station for a fan and method for testing a fan using said test station |
| CN114962314B (en) * | 2022-06-15 | 2023-01-24 | 皇家动力(武汉)有限公司 | Pneumatic performance testing device of high-speed axial flow fan |
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| CN101109672A (en) * | 2006-07-19 | 2008-01-23 | 上海理工大学 | Air compartment type draught fan performance test device for both air inflowing and exhausting |
| CN202266402U (en) * | 2011-10-23 | 2012-06-06 | 德州市产品质量监督检验所 | System for testing performance of air chamber type air feed and exhaust general fan |
| CN202628482U (en) * | 2011-12-08 | 2012-12-26 | 大连海事大学 | Automatic blower fan performance testing system |
| CN103196649A (en) * | 2013-04-08 | 2013-07-10 | 天津大学 | Road tunnel ventilation performance model testing system |
| CN203101018U (en) * | 2013-02-05 | 2013-07-31 | 长安大学 | Tunnel ventilation model test measuring system |
| CN203743034U (en) * | 2014-02-21 | 2014-07-30 | 上虞专用风机有限公司 | Backpressure testing device for subway tunnel fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04125443A (en) * | 1990-09-17 | 1992-04-24 | Mitsubishi Heavy Ind Ltd | Apparatus for testing performance of air blower |
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2014
- 2014-02-21 CN CN201410059307.9A patent/CN103883549B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109672A (en) * | 2006-07-19 | 2008-01-23 | 上海理工大学 | Air compartment type draught fan performance test device for both air inflowing and exhausting |
| CN202266402U (en) * | 2011-10-23 | 2012-06-06 | 德州市产品质量监督检验所 | System for testing performance of air chamber type air feed and exhaust general fan |
| CN202628482U (en) * | 2011-12-08 | 2012-12-26 | 大连海事大学 | Automatic blower fan performance testing system |
| CN203101018U (en) * | 2013-02-05 | 2013-07-31 | 长安大学 | Tunnel ventilation model test measuring system |
| CN103196649A (en) * | 2013-04-08 | 2013-07-10 | 天津大学 | Road tunnel ventilation performance model testing system |
| CN203743034U (en) * | 2014-02-21 | 2014-07-30 | 上虞专用风机有限公司 | Backpressure testing device for subway tunnel fan |
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| CN103883549A (en) | 2014-06-25 |
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| CB02 | Change of applicant information |
Address after: 312300 Shangyu City, Shaoxing province people's Road West, No. Applicant after: ZHEJIANG SHANGFENG GAOKE SPECIAL FAN INDUSTRY CO., LTD. Address before: 312300 Shangyu City, Shaoxing province people's Road West, No. 1818, No. Applicant before: Shangyu Special Fans Co., Ltd. |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Lei Inventor after: Xu Jianfeng Inventor after: Hu Weifeng Inventor after: Ren Jintu Inventor after: Shen Wei Inventor before: Zhang Lei Inventor before: Xu Jianfeng Inventor before: Hu Weifeng Inventor before: Ren Jintu |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 312300 No. 1818, Renmin West Road, Dongguan Street, Shangyu District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Shangfeng high tech special wind industry Co.,Ltd. Address before: 312300 No. 1818 Renmin West Road, Shangyu District, Zhejiang, Shaoxing Patentee before: ZHEJIANG SHANGFENG HI-TECH SPECIALIZED WIND INDUSTRIAL Co.,Ltd. |