CN107643362A - Calcium carbide dust meets the wet method of testing for releasing gas velocity and component - Google Patents
Calcium carbide dust meets the wet method of testing for releasing gas velocity and component Download PDFInfo
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- CN107643362A CN107643362A CN201611087154.4A CN201611087154A CN107643362A CN 107643362 A CN107643362 A CN 107643362A CN 201611087154 A CN201611087154 A CN 201611087154A CN 107643362 A CN107643362 A CN 107643362A
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Abstract
The present invention relates to a kind of calcium carbide dust to meet the wet method of testing for releasing gas velocity and component, mainly solves the problems, such as that the rate of release and composition Detection results of calcium carbide dust and steam reaction production flammable explosive gas in the prior art are bad.The present invention meets the wet method of testing for releasing gas velocity and component by using a kind of calcium carbide dust, the wet test for releasing gas velocity and the wet releasing gas velocity of component test device progress calcium carbide dust chance and component is met using calcium carbide dust, the calcium carbide dust, which meets wet releasing gas velocity and component test device, includes vapor premixed device, accurate hygrometer, calcium carbide dust airborne dust equipment, calcium carbide dust dust controlling device, rate of gas release test system, gas component test system and computer control system；Water vapour premixed device can generate different humidity water vapour, and the technical scheme that accurate hygrometer is connected on water vapour premixed device preferably solves above mentioned problem, be met available for calcium carbide dust in the wet test for releasing gas velocity and component.
Description
Technical field
The present invention relates to a kind of calcium carbide dust to meet the wet method of testing for releasing gas velocity and component.
Background technology
In recent years, the fast development of China's calcium carbide industry, annual production climb up and up, but traditional calcium carbide production technology needs
Want a large amount of manual operations, efficiency is low and complex operation.The worker of enterprise need high temperature, high dust mal-condition under carry out
High-strength working, there is very big potential safety hazard.Calcium carbide dust pelletizing system is protected as the dust harzard for reducing calcium carbide production process
Barrier dedusting worker's occupational health plays a key effect.However, due to containing the complete calcium carbide of unreacted in dust, and in furnace of calcium carbide
Carbon monoxide and hydrogen may with calcium carbide production process and part is taken out of, cause calcium carbide dust pelletizing system to have and certain fire danger.
In the production process of reality, also once there is the Lighting-blast casualty in calcium carbide deduster.Accordingly, it is determined that calcium carbide dust meets wet generation
The rate of release and burst size of acetylene and other fuel gas, by the control of its concentration outside explosion limit scope, for ensureing
The safety of calcium carbide production equipment has very important significance.
According to literature search result, the method for testing of the domestic and international existing wet releasing inflammable gas of chance is mainly《The United Nations closes
In recommendation-experiment of Dangerous Goods Transport and manual of standards》(hereinafter referred to as《Experiment and manual of standards》) 4.3 meet water and release
Inflammable gas substance testing method (a kind of device of testing velocity of inflammable gas given out by substance when contacting with water, the patent No.：
ZL200810160135.9).This method, which is used to test, meets wet releasing inflammable gas material any moment in water course of reaction is met
The speed of caused inflammable gas, can the wet material of end-on caused gas velocity during water is met carry out implementation monitoring.Surveying
During examination, add water to meeting in wet material, meet wet material and may be homogenously dispersed in water, sufficiently reacted with water.But
It is that calcium carbide dust is to contact to react with vapor with the dust in similar dust environment in process of production,《Experiment and mark
Quasi- handbook》Water vapour can not be carried out full and uniform mix by the middle wet velocity of inflammable gas given out method of testing of chance with meeting wet material
Close, can not also carry out instant analysis to the composition for producing gas.Therefore, realize that calcium carbide dust fills in dust environment with water vapour
Divide reaction, and test immediately produces the rate of release and gas composition of gas, the safety in production for guarantee calcium carbide production equipment
It is significant.
The present invention provides a kind of calcium carbide dust and meets the wet method of testing for releasing gas velocity and component, passes through simulated implementation water
Steam carries out well-mixed reaction with the calcium carbide dust in calcium carbide dust dust environment, using rate of gas release test system
The wet rate of release for releasing gas is met to calcium carbide dust and carries out implementation monitoring, calcium carbide dust is met using gas component test system
The wet composition for releasing gas carries out instant analysis, and test result is true closer to calcium carbide dust in calcium carbide production equipment and water vapour
Real working condition, more it is intended for the operating environment of industrialized unit.
The content of the invention
The technical problems to be solved by the invention are that calcium carbide dust and steam reaction production are inflammable and explosive in the prior art
The problem of rate of release and bad composition Detection results of gas, there is provided a kind of new calcium carbide dust meet wet releasing gas velocity and
The method of testing of component.This method has the rate of release and composition of calcium carbide dust and steam reaction production flammable explosive gas
The advantages of Detection results are preferable.
To solve the above problems, the technical solution adopted by the present invention is as follows：A kind of calcium carbide dust meets wet releasing gas velocity
With the method for testing of component, wet releasing gas velocity is met using calcium carbide dust and component test device carries out calcium carbide dust and meets wet put
Go out the test of gas velocity and component, the calcium carbide dust meets wet releasing gas velocity and component test device is sent out including vapor
Raw device, vapor premixed device, accurate hygrometer, calcium carbide dust airborne dust equipment, calcium carbide dust dust controlling device, rate of gas release
Test system, gas component test system and computer control system；Water vapour premixed device can generate different humidity water vapour,
Accurate hygrometer is connected on water vapour premixed device, for monitoring the humidity in water vapour premixed device, the different humidity of generation in real time
Water vapour enters in calcium carbide dust airborne dust equipment, carries out being sufficiently mixed reaction with calcium carbide dust therein；Calcium carbide dust airborne dust is set
It is standby to simulate the calcium carbide dust dust environment similar with actual condition, what different humidity water vapour generated after being reacted with calcium carbide dust
Flammable explosive gas enters the rate of gas release test system and gas component test system being connected with computer control system,
The rate of release and gas composition of instant Self -adaptive flammable explosive gas, specifically comprise the following steps：
1) accurate hygrometer should be calibrated first, it is ensured that device each several part pipeline, data wire connection are normal, it is ensured that gas
Body rate test system and gas composition test system are normal；
2) computer control system is opened, gas velocity test system is opened and gas component test system control system is soft
Part；
3) calcium carbide dust dust controlling device is opened, the calcium carbide dust airborne dust equipment for adding calcium carbide dust in advance is run, makes it
Produce calcium carbide dust；
4) accurate hygrometer is opened, the humidity in water vapour premixed device is monitored in real time；
5) steam generator is opened, the water entered by the control of steam generator control valve in water vapour premixed device steams
Vapour quality, pass through the water vapour of humidity needed for the generation experiment of accurate hygrometer；
6) the different humidity water vapour of generation is delivered to by calcium carbide dust airborne dust equipment by water vapour premixed device control valve
In, water vapour is sufficiently mixed reaction with calcium carbide dust；
7) by gas velocity test system to the release speed of the flammable explosive gas generated in calcium carbide dust airborne dust equipment
Rate is tested immediately；
8) entered by the composition of flammable explosive gas of the gas component test system to being generated in calcium carbide dust airborne dust equipment
Row test immediately；
9) gas recovery and waste disposal are carried out to the flammable explosive gas tested；
10) after experiment terminates, experimental data is preserved, it is whole according to the orderly close-down each several part installation's power source opposite with unlatching
Associated pipe and circuit are managed, by the cleaning of calcium carbide dust the wind-borne dust device, is dried, standby.
In above-mentioned technical proposal, it is preferable that calcium carbide dust airborne dust equipment is placed on above calcium carbide dust dust controlling device, with
Water vapour premixed device connects with rate of gas release test system, for generating the calcium carbide dust of dust environment, with entering wherein
Different humidity water vapour react, while the flammable explosive gas of generation is delivered in gas velocity test system.
In above-mentioned technical proposal, it is preferable that calcium carbide dust dust controlling device：It is placed on below calcium carbide dust airborne dust equipment,
For controlling the rotating speed of calcium carbide dust airborne dust equipment, it is ensured that calcium carbide dust is in dust environment all the time.
In above-mentioned technical proposal, it is preferable that rate of gas release test system and calcium carbide dust airborne dust equipment, gas component
Test system connects with computer control system, for testing caused flammable explosive gas speed in calcium carbide dust airborne dust equipment
Rate, while the flammable explosive gas for having tested rate of release is delivered to gas component test system.
The invention provides the rate of release and composition that a kind of vapor and calcium carbide dust reaction release flammable explosive gas
The method of testing of analysis, calcium carbide production, the research of calcium carbide production safety and the R＆D institution of design and enterprise are engaged in present invention side
Method has certain demand.With China's calcium carbide production correlation technique it is gradual perfect, the present invention calcium carbide production enterprise, safety
There is suitable application and popularization value in the R＆D institution such as research and design.With both at home and abroad compared with prior art the device have with
Lower advantage：1) different humidity water vapour can be produced；2) calcium carbide powder similar with calcium carbide production equipment actual condition can be simulated
Dirt dust environment；3) can enter with carrying out different humidity water vapour by control system with the calcium carbide dust in calcium carbide dust environment
The flammable explosive gas rate of release and composition of the well-mixed reaction of row and generation carry out real-time data acquisition and analysis.This
Invention has carried out the test of calcium carbide dust and steam reaction production flammable explosive gas, can be effectively right in test process
The flammable explosive gas rate of release of generation and composition carry out real-time data acquisition and analysis, and service condition is stable, achieve compared with
Good technique effect.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the method for the invention.
In Fig. 1,1- steam evaporators, 2- steam evaporators control valve, 3- vapor premixed device, 4- vapor premix
Device control valve, 5- precisions hygrometer, 6- calcium carbide dust airborne dusts equipment, 7- calcium carbide dust dust controllings device, 8- humidity regulations valve, 9-
Rate of gas release test system, 10- gas components test system, 11- computer control systems.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
A kind of calcium carbide dust meets the wet method of testing for releasing gas velocity and component, as shown in figure 1, the present invention's is main interior
Appearance is that a kind of vapor releases the rate of release of flammable explosive gas and the method for testing of composition analysis, energy with calcium carbide dust reaction
The water vapour of different humidity and the calcium carbide dust dust environment that simulation is similar with calcium carbide production equipment actual condition are enough generated, simultaneously
The existing wet velocity of inflammable gas given out method of testing of chance is improved.
Calcium carbide dust meets wet releasing gas velocity and the test system of component mainly comprises the following steps：
1) steam evaporator：It is connected with water vapour premixed device, for producing water vapour.
2) steam evaporator control valve：It is connected with steam generator and water vapour premixed device, for connecting and turning off
Steam generator leads to the water vapour of water vapour premixed device.
3) vapor premixed device：It is connected with calcium carbide dust airborne dust equipment, for the water vapour of the different humidity of generation to be led to
Enter and reacted in calcium carbide dust airborne dust equipment.
4) vapor premixed device control valve：Be connected with water vapour premixed device and calcium carbide dust airborne dust equipment, for connect and
Different humidity water vapour of the shut-off towards calcium carbide dust airborne dust equipment.
5) accurate hygrometer：It is connected on water vapour premixed device, for entering to the water vapour humidity in water vapour premixed device
Row monitoring in real time, to produce the water vapour of different humidity.
6) calcium carbide dust airborne dust equipment：It is placed on above calcium carbide dust dust controlling device, with water vapour premixed device and gas
Rate of release test system connects, and for generating the calcium carbide dust of dust environment, is sent out with entering different humidity water vapour therein
Raw reaction, while the flammable explosive gas of generation is delivered in gas velocity test system.
7) calcium carbide dust dust controlling device：It is placed on below calcium carbide dust airborne dust equipment, for controlling calcium carbide dust airborne dust
The rotating speed of equipment, it is ensured that calcium carbide dust is in dust environment all the time.
8) humidity regulation valve：It is connected on the pipeline between calcium carbide dust airborne dust equipment and gas velocity test device, it is main
It is used to control the water vapour quality entered in calcium carbide dust airborne dust equipment.
9) rate of gas release test system：With calcium carbide dust airborne dust equipment, gas component test system and computer control
System connection processed, for testing caused flammable explosive gas speed in calcium carbide dust airborne dust equipment, while will test release
The flammable explosive gas of speed is delivered to gas component test system.
10) gas component test system：It is connected with rate of gas release test system and computer control system, for dividing
The composition of the flammable explosive gas of rate of release has been tested in analysis, while the flammable explosive gas for having tested composition is delivered into gas
Processing system carries out waste disposal.
11) computer control system：It is made up of the computer software of data acquisition card, digital analog converter and preprogramming.
Wherein, steam generator, accurate humidity are calculated as outsourcing, computer control system, steam evaporator control valve,
Vapor premixed device control valve, humidity regulation valve, rate of gas release test system, gas component test system is customize, water
Steam premixed device, calcium carbide dust airborne dust equipment, calcium carbide dust dust controlling device are designed, designed and manufacture.
There is the water vapour that can generate a different humidity water vapour premixed device in the present invention, connected on water vapour premixed device
One accurate hygrometer, for monitoring the humidity in water vapour premixed device in real time, the different humidity water vapour of generation enters calcium carbide
In dust airborne dust equipment, carry out being sufficiently mixed reaction with calcium carbide dust therein；Calcium carbide dust airborne dust equipment can be simulated and reality
The similar calcium carbide dust dust environment of operating mode, the flammable explosive gas that different humidity water vapour generates after being reacted with calcium carbide dust enter
Enter the gas velocity test system being connected with computer control system and gas composition test system, instant Self -adaptive is inflammable easily
Rate of release and the gas composition of gas explosion body.
During using the present invention, accurate hygrometer should be calibrated first, it is ensured that device each several part pipeline, data wire connection
Normally, it is ensured that gas velocity test system and gas composition test system are normal, are then tested according to the following steps：
1) computer control system is opened, gas velocity test system is opened and gas composition test system control system is soft
Part；
2) calcium carbide dust dust controlling device is opened, the calcium carbide dust airborne dust equipment for adding calcium carbide dust in advance is run, makes it
Produce calcium carbide dust；
3) accurate hygrometer is opened, the humidity in water vapour premixed device is monitored in real time；
4) steam generator is opened, the water entered by the control of steam generator control valve in water vapour premixed device steams
Vapour quality, pass through the water vapour of humidity needed for the generation experiment of accurate hygrometer；
5) the different humidity water vapour of generation is delivered to by calcium carbide dust airborne dust equipment by water vapour premixed device control valve
In, water vapour is sufficiently mixed reaction with calcium carbide dust；
6) by gas velocity test system to the release speed of the flammable explosive gas generated in calcium carbide dust airborne dust equipment
Rate is tested immediately；
7) composition that flammable explosive gas of the test system to being generated in calcium carbide dust airborne dust equipment is made up of gas enters
Row test immediately；
8) gas recovery and waste disposal are carried out to the flammable explosive gas tested；
9) after experiment terminates, experimental data is preserved, according to the orderly close-down each several part installation's power source opposite with unlatching, is arranged
Associated pipe and circuit, by the cleaning of calcium carbide dust airborne dust equipment, dry, standby.
Using the method for the present invention, in test process can effectively to the flammable explosive gas rate of release of generation and
Composition carries out real-time data acquisition and analysis, and service condition is stable, achieves preferable technique effect.
【Comparative example】
Using the device of testing velocity of inflammable gas given out by substance when contacting with water (with Patent No. ZL 200810160135.9 1
The device test method of kind testing velocity of inflammable gas given out by substance when contacting with water is consistent) carry out calcium carbide dust chance water vapour releasing acetylene
Gas test, allows water vapour with calcium carbide dust haptoreaction after 20 minutes, collects the gas in circulating system using sampling pump, adopts
The acetylene content in gas, test result such as following table are collected with chromatographic：
| Peak | Retention time/min | Peak width/min | The μ Vs of peak area/25 | The μ V of peak height/25 |
| 1 | 1.033 | 0.0119 | 1.92254 | 2.52696 |
| 2 | 1.462 | 0.0296 | 218.64594 | 103.55457 |
| 3 | 1.834 | 0.0250 | 15.32018 | 8.94742 |
It is about 218.65 μ Vs that analysis, which obtains acetylene gas peak area,.
Calcium carbide dust is carried out using apparatus of the present invention meet water vapour to release acetylene gas test, allow water vapour and calcium carbide dust
After haptoreaction 20 minutes, the gas in circulating system is collected using sampling pump, is collected using chromatographic in gas
Acetylene content, test result such as following table：
| Peak | Retention time/min | Peak width/min | The μ Vs of peak area/25 | The μ V of peak height/25 |
| 1 | 0.856 | 0.0198 | 10.02244 | 7.91432 |
| 2 | 1.235 | 0.0527 | 902.24829 | 230.39986 |
| 3 | 1.632 | 0.0422 | 68.20010 | 23.95535 |
It is about 902.24 μ Vs that analysis, which obtains acetylene gas peak area,.
Through comparing, the acetylene gas peak area that water vapour and calcium carbide dust reacted to obtain is carried out using apparatus of the present invention
About 902.24 μ Vs, and the device of testing velocity of inflammable gas given out by substance when contacting with water is used (with Patent No.
A kind of device test methods of testing velocity of inflammable gas given out by substance when contacting with water of ZL200810160135.9 are consistent) obtained acetylene
Gas peak area is about 218.65 μ Vs, and the acetylene gas concentration that apparatus of the present invention obtain is higher.Therefore, apparatus of the present invention are more
The reaction of caused calcium carbide dust and water vapour during close to factory's actual production operating mode, test result are more true, accurate
Really.
Claims (4)
1. a kind of calcium carbide dust meets the wet method of testing for releasing gas velocity and component, wet releasing gas speed is met using calcium carbide dust
Rate and component test device carry out calcium carbide dust and meet the wet test for releasing gas velocity and component, and the calcium carbide dust meets wet releasing
Gas velocity and component test device include steam evaporator, vapor premixed device, accurate hygrometer, calcium carbide dust airborne dust and set
Standby, calcium carbide dust dust controlling device, rate of gas release test system, gas component test system and computer control system；
Water vapour premixed device can generate different humidity water vapour, and accurate hygrometer is connected on water vapour premixed device, for monitoring in real time
Humidity in water vapour premixed device, the different humidity water vapour of generation enters in calcium carbide dust airborne dust equipment, with calcium carbide therein
Dust carries out being sufficiently mixed reaction；Calcium carbide dust airborne dust equipment can simulate the calcium carbide dust dust environment similar with actual condition,
The flammable explosive gas that different humidity water vapour generates after being reacted with calcium carbide dust enters the gas being connected with computer control system
Body rate of release test system and gas component test system, the rate of release and gas of instant Self -adaptive flammable explosive gas
Composition, specifically comprises the following steps：
1) accurate hygrometer should be calibrated first, it is ensured that device each several part pipeline, data wire connection are normal, it is ensured that gas speed
Rate test system and gas composition test system are normal；
2) computer control system is opened, opens gas velocity test system and gas component test system Control System Software；
3) calcium carbide dust dust controlling device is opened, the calcium carbide dust airborne dust equipment for adding calcium carbide dust in advance is run, makes its generation
Calcium carbide dust；
4) accurate hygrometer is opened, the humidity in water vapour premixed device is monitored in real time；
5) steam generator is opened, the water vapour matter entered by the control of steam generator control valve in water vapour premixed device
Amount, pass through the water vapour of humidity needed for the generation experiment of accurate hygrometer；
6) the different humidity water vapour of generation is delivered in calcium carbide dust airborne dust equipment by water vapour premixed device control valve, made
Water vapour is sufficiently mixed reaction with calcium carbide dust；
7) entered by the rate of release of flammable explosive gas of the gas velocity test system to being generated in calcium carbide dust airborne dust equipment
Row test immediately；
8) by gas component test system to the composition of flammable explosive gas that is generated in calcium carbide dust airborne dust equipment i.e.
When test；
9) gas recovery and waste disposal are carried out to the flammable explosive gas tested；
10) after experiment terminates, experimental data is preserved, according to the orderly close-down each several part installation's power source opposite with unlatching, arranges phase
Pipeline and circuit are closed, by the cleaning of calcium carbide dust the wind-borne dust device, is dried, standby.
2. calcium carbide dust meets the wet method of testing for releasing gas velocity and component according to claim 1, it is characterised in that electricity
Stone flour dirt airborne dust equipment is placed on above calcium carbide dust dust controlling device, is with water vapour premixed device and rate of gas release test
System connection, for generating the calcium carbide dust of dust environment, with being reacted into different humidity water vapour therein, while will be raw
Into flammable explosive gas be delivered in gas velocity test system.
3. calcium carbide dust meets the wet method of testing for releasing gas velocity and component according to claim 1, it is characterised in that electricity
Stone flour dirt dust controlling device：It is placed on below calcium carbide dust airborne dust equipment, for controlling the rotating speed of calcium carbide dust airborne dust equipment, really
Protect calcium carbide dust and be in dust environment all the time.
4. calcium carbide dust meets the wet method of testing for releasing gas velocity and component according to claim 1, it is characterised in that gas
Body rate of release test system is connected with calcium carbide dust airborne dust equipment, gas component test system and computer control system, is used
In caused flammable explosive gas speed in test calcium carbide dust airborne dust equipment, while the inflammable and explosive of rate of release will be tested
Gas is delivered to gas component test system.
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| CN201611087154.4A CN107643362B (en) | 2016-12-01 | 2016-12-01 | Method for testing gas release rate and components of calcium carbide dust in case of wetting |
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| CN201611087154.4A CN107643362B (en) | 2016-12-01 | 2016-12-01 | Method for testing gas release rate and components of calcium carbide dust in case of wetting |
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Cited By (1)
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| CN110389195A (en) * | 2018-04-19 | 2019-10-29 | 中国石油化工股份有限公司 | Calcium carbide humid air fires in case of wet critical relative moisture evaluation method and system |
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| CN110389195A (en) * | 2018-04-19 | 2019-10-29 | 中国石油化工股份有限公司 | Calcium carbide humid air fires in case of wet critical relative moisture evaluation method and system |
| CN110389195B (en) * | 2018-04-19 | 2021-10-12 | 中国石油化工股份有限公司 | Method and system for evaluating critical relative humidity of calcium carbide burning explosion in humid air |
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| CN107643362B (en) | 2019-12-10 |
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