CN206038344U - Exhaust port heat extraction efficient measurement system - Google Patents
Exhaust port heat extraction efficient measurement system Download PDFInfo
- Publication number
- CN206038344U CN206038344U CN201621048878.3U CN201621048878U CN206038344U CN 206038344 U CN206038344 U CN 206038344U CN 201621048878 U CN201621048878 U CN 201621048878U CN 206038344 U CN206038344 U CN 206038344U
- Authority
- CN
- China
- Prior art keywords
- exhaust opening
- temperature sensor
- utility
- model
- data acquisition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model discloses an exhaust port heat extraction efficient measurement system has solved the problem that prior art does not possess measuring tunnel fire smoke control system heat extraction efficiency. The utility model discloses a PC, with the data collection station of PC number of pass according to the line connection, quantity is at least for 5, and temperature sensor from arranging according to 15 centimetres interval equidistant line apart from exhaust port 10 centimetres of beginning from the top down at the top, quantity at least for 3, and from the air velocity transducer of 5 centimetres of beginning from the bottom up bottom the exhaust port according to 45 centimetres interval equidistant line range to and the differential pressure transmitter who is connected with all air velocity transducer simultaneously, differential pressure transmitter and all temperature sensor all are connected with data collection station. The utility model discloses simple structure, design scientific and reasonable, convenient to use possess substantive characteristics and progress.
Description
Technical field
This utility model is related to fire engineering field, and in particular to exhaust opening thermal discharge efficiency measuring system.
Background technology
In fire process, combustible combustion discharges a large amount of high temperature poison gas, while can also discharge amount of heat.If fiery
The heat of source release can not be discharged by smoke evacuation system in time, then may cause safely serious harm to building/staff in tunnel,
Affecting fire fighter to be close to burning things which may cause a fire disaster carries out fire fighting and rescue, or even also structure can be done great damage.
At present, the conventional determination methods for examining or check tunnel smoke evacuation system flue gas control effect mainly pass through in-site measurement flue gas temperature
The parameters such as degree, visibility, smoke layer height being judged, but due to length of tunnel big (super long tunnel length is more than 3km),
Flue gas spreads distance far along length of tunnel direction, and these smoke transportation parameter difficulty of big measurement are big, and measured data
Precision is low, representative poor, causes to calculate thermal discharge efficiency time error greatly follow-up, and result of calculation is inaccurate.
Utility model content
The technical problems to be solved in the utility model is：A kind of exhaust opening thermal discharge efficiency measuring system is provided, the measurement system
System is measured that the initial data such as tunnel exhaust opening flue-gas temperature and flue gas flow rate possesses the characteristics of degree of accuracy is high, representativeness is strong.
For achieving the above object, the technical solution adopted in the utility model is as follows：
Exhaust opening thermal discharge efficiency measuring system, including PC, the data acquisition unit being connected by data wire with PC, quantity
At least 5, and from the interval equidistant line arrangement for starting from top to bottom according to 15 centimetres apart from 10 centimeters at the top of exhaust opening
Temperature sensor, quantity is at least 3, and from starting from top to bottom according to 45 centimetres apart from 5 centimeters of exhaust opening bottom
The air velocity transducer of interval equidistant line arrangement, and while the differential pressure transmitter being connected with all of air velocity transducer；It is described
Differential pressure transmitter and all of temperature sensor are connected with data acquisition unit.
Specifically, the data acquisition unit is 485 type data acquisition units, and the data wire is 485 type data wires.
Further, the temperature sensor is K-type thermocouple.
Further, the data acquisition unit is connected with temperature sensor by compensation lead of thermocouple.
Specifically, the air velocity transducer is high accuracy pitot tube.
Compared with prior art, this utility model has the advantages that：
(1) this utility model design is exquisite, reasonable in design, easy to use, possesses substantive distinguishing features and progress.
(2) compared with prior art, the measuring system of this utility model design, is passed by selecting temperature sensor and wind speed
The quantity of sensor, and its position of appropriate design and distribution mode such that it is able to accurately detect out each small time in real time
In section, exhaust opening flue-gas temperature and flue gas flow rate, then export to PC after gathering via data acquisition unit, you can surveyed
The data of amount.Not only degree of accuracy is high for the data of this utility model measurement, and representative strong, is subsequently accurately to calculate exhaust opening
Thermal discharge efficiency is provided and is ensured.
Description of the drawings
Fig. 1 is system structure diagram of the present utility model.
Wherein, reference is corresponding entitled：
1-PC machines, 2- data wires, 3- data acquisition units, 4- temperature sensors, 5- compensation lead of thermocouple, 6- wind speed sensing
Device, 7- differential pressure transmitters.
Specific embodiment
The utility model is described in further detail with embodiment for explanation below in conjunction with the accompanying drawings, and mode of the present utility model includes
But it is not limited only to following examples.
Embodiment
As shown in figure 1, exhaust opening thermal discharge efficiency measuring system, including PC 1, is connected by 485 type data wires 2 with PC 1
The 485 type data acquisition units 3 for connecing, quantity be at least 5, and from apart from 10 centimeters at the top of exhaust opening start from top to bottom according to
The temperature sensor 4 of 15 centimetres of interval equidistant line arrangement, quantity is at least 3, and from apart from 5 centimeters of exhaust opening bottom
Start the air velocity transducer 6 from top to bottom according to 45 centimetres of interval equidistant line arrangement, and while pass with all of wind speed
The differential pressure transmitter 7 of sensor connection；The differential pressure transmitter 7 and all of temperature sensor 4 with 485 type data acquisition units 3
Connection；Preferably, K-type thermocouple is selected in temperature sensor of the present utility model 4, meanwhile, 485 type data acquisitions
Connected using compensation lead of thermocouple 5 between device 3 and K-type thermocouple；Also, air velocity transducer 6 selects high-precision pitot tube.
A brief description is done with regard to implementing procedure of the present utility model below：
The open position of exhaust opening is determined first, and the smoke evacuation of several area equations is divided into according to exhaust opening size
Unit, and temperature sensor 4 and air velocity transducer 6 is arranged in each fume extraction unit, at least arrange in each fume extraction unit
Three temperature sensors 4 and at least one air velocity transducer 6；Then, 60Kg 0# diesel fuels are set in exhaust opening relative position
As combustion source point combustion, flue blower fan being opened after 60 seconds and tested exhaust opening being discharged fume, now PC 1 passes through temperature sensor 4
Flue-gas temperature and the flow velocity of exhaust opening is collected with 6 real-time continuous of air velocity transducer, until combustion source is extinguished；During, PC 1 shows
Detection data that data acquisition unit 3 is transmitted simultaneously is stored, and provides accurately initial data for subsequently calculating thermal discharge efficiency.
The exquisite, design science of this utility model design is reasonable, easy to use, possesses substantive distinguishing features and progress.
Above-described embodiment is only one of preferred implementation of the present utility model, be should not be taken to limit of the present utility model
Protection domain, it is all in body design thought of the present utility model and the change or polishing of having no essential meaning mentally made,
The technical problem solved by which is still consistent with this utility model, should be included in protection domain of the present utility model it
It is interior.
Claims (5)
1. exhaust opening thermal discharge efficiency measuring system, it is characterised in that：Including PC (1), connected by data wire (2) with PC (1)
The data acquisition unit (3) for connecing, quantity is at least 5, and from starting from top to bottom according to 15 apart from 10 centimeters at the top of exhaust opening
Centimetre interval equidistant line arrangement temperature sensor (4), quantity is at least 3, and from apart from 5 centimeters of exhaust opening bottom
Start from top to bottom according to 45 centimetres interval equidistant line arrangement air velocity transducer (6), and while with all of wind speed
The differential pressure transmitter (7) of sensor connection；Differential pressure transmitter (7) and all of temperature sensor (4) are and data acquisition
Device (3) connects.
2. exhaust opening thermal discharge efficiency measuring system according to claim 1, it is characterised in that：Data acquisition unit (3)
For 485 type data acquisition units, described data wire (2) are 485 type data wires.
3. exhaust opening thermal discharge efficiency measuring system according to claim 2, it is characterised in that：Temperature sensor (4)
For K-type thermocouple.
4. exhaust opening thermal discharge efficiency measuring system according to claim 3, it is characterised in that：Data acquisition unit (3)
It is connected with temperature sensor (4) by compensation lead of thermocouple (5).
5. exhaust opening thermal discharge efficiency measuring system according to claim 4, it is characterised in that：Air velocity transducer (6)
For high accuracy pitot tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048878.3U CN206038344U (en) | 2016-09-12 | 2016-09-12 | Exhaust port heat extraction efficient measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048878.3U CN206038344U (en) | 2016-09-12 | 2016-09-12 | Exhaust port heat extraction efficient measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038344U true CN206038344U (en) | 2017-03-22 |
Family
ID=58300072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621048878.3U Active CN206038344U (en) | 2016-09-12 | 2016-09-12 | Exhaust port heat extraction efficient measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206038344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422141A (en) * | 2017-07-28 | 2017-12-01 | 国网山东省电力公司电力科学研究院 | A kind of air velocity duct is automatically positioned measurement apparatus and method |
| CN112229662A (en) * | 2020-09-30 | 2021-01-15 | 青岛市地铁八号线有限公司 | Quantitative evaluation method for smoke discharge performance of smoke discharge system of underwater interval tunnel |
-
2016
- 2016-09-12 CN CN201621048878.3U patent/CN206038344U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422141A (en) * | 2017-07-28 | 2017-12-01 | 国网山东省电力公司电力科学研究院 | A kind of air velocity duct is automatically positioned measurement apparatus and method |
| CN112229662A (en) * | 2020-09-30 | 2021-01-15 | 青岛市地铁八号线有限公司 | Quantitative evaluation method for smoke discharge performance of smoke discharge system of underwater interval tunnel |
| CN112229662B (en) * | 2020-09-30 | 2022-04-01 | 青岛市地铁八号线有限公司 | Quantitative evaluation method for smoke discharge performance of smoke discharge system of underwater interval tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104345118B (en) | Solid propellant many targets line Dynamic Burning Performance Test System and method | |
| CN102721516B (en) | Method for testing internal volume of container by gas tightness detector by aid of gas-release process | |
| CN101551326B (en) | Intelligent wireless vehicular embedded analytical equipment for automobile exhaust | |
| CN106323661B (en) | A kind of test method of tunnel smoke outlet central exhaust performance testing device | |
| CN101914904A (en) | Fire simulation experiment equipment for caverns in hydraulic and hydro-power engineering and simulation experiment method | |
| CN103604505B (en) | The test characterizing method of a kind of cigarette and the distribution of reconstituted tobacco temperature of combustion | |
| CN206038344U (en) | Exhaust port heat extraction efficient measurement system | |
| CN102608010B (en) | Particulate matter (PM) detecting method and equipment | |
| CN105784918B (en) | One kind burning HRR in-situ measuring method and device | |
| CN104089656B (en) | A kind of stockyard spontaneous combustionof coal detection method and device | |
| CN204188341U (en) | Air pressure testing/detecting device | |
| CN105841882B (en) | Shock train leading edge detection device in a kind of distance piece | |
| CN204788893U (en) | Visual test device that digs dust migration law in tunnel is combined in research | |
| CN109556749A (en) | A kind of high-temperature flue gas contact type temperature measuring device and its measurement method | |
| CN104005974B (en) | A kind of Coal Mine Ventilator flow-measuring method based on pressure correlation method | |
| CN202548075U (en) | Automatic control type detecting device for ignition point of granular active carbon | |
| CN209085868U (en) | Civil air defense constructions and installations air-leakage detector | |
| CN206038176U (en) | Capability test device of discharging fume is concentrated to tunnel exhaust port | |
| CN111413365A (en) | Device and method for measuring heat conductivity coefficient of coal | |
| CN106198091B (en) | The measurement method of tunnel smoke outlet thermal discharge efficiency measuring system | |
| CN104131840B (en) | Based on assay method and the device of the surface leakage rate of air status parameter | |
| CN206178171U (en) | Sonde | |
| CN106770983A (en) | A kind of mine laneway flow of flue gas simulated testing system and method | |
| CN209589599U (en) | A kind of intellegent sampling device measuring fuel burning different zones intermediate product | |
| CN207036512U (en) | A kind of multipurpose smoke sampling probe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |