CN208526167U - A kind of pernicious gas collection and purification device for cable flame retardance test - Google Patents
A kind of pernicious gas collection and purification device for cable flame retardance test Download PDFInfo
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- CN208526167U CN208526167U CN201820812306.0U CN201820812306U CN208526167U CN 208526167 U CN208526167 U CN 208526167U CN 201820812306 U CN201820812306 U CN 201820812306U CN 208526167 U CN208526167 U CN 208526167U
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- purification device
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Abstract
The utility model discloses a kind of pernicious gas collection for cable flame retardance test and purification devices, the device includes: negative pressure air-suction device, a collection chamber and secondary collection chamber, negative pressure air-suction device load setting is connected at cable under test connector both ends, and with a collection chamber；One time collection chamber is connected to secondary collection chamber, and smoke filter is arranged between the two；Gas sampling unit is set in secondary collection chamber, and gas purification filter core is arranged at exhaust position in secondary collection chamber.The toxic and harmful gas that scheme provided by the utility model can generate cable when doing cable load combustion test is collected simultaneously, and targetedly purified treatment reaches non-pollution discharge.
Description
Technical field
The utility model relates to cable flame retardance testing scheme, it is related in cable flame retardance test process harmful
The processing scheme of gas.
Background technique
It include bunchy burning, single vertical burning, load combustion test etc. in cable flame retardance test.Wherein load combustion
During burning test, cable conductor current overload, temperature is increased, and the nonmetallic materials such as insulating sheath filler material of cable are heated
Process can release a large amount of volatility toxic and harmful gas.
Conventional load combustion test process is as follows:
1.1 are placed into test specimen on combustion box inner support, and test specimen center line should be located in the middle part of combustion box, test specimen two ends difference
It is stretched out outside case from combustion box two side holes.
1.2 connect the temperature measurer of the thermocouple and electric cabinet that are inserted on test specimen, to observe power core conductor
Temperature.
1.3 by the series connection method as shown in Figure 1 of the power wire core on test specimen (by being connected by connecting line 3 for one end of test specimen 1
Logical, the other end passes through power supply line 1 respectively and connects power supply 4) or parallel method as shown in Figure 2 (both ends of test specimen 2 are passed through respectively
Power supply line 1 connects power supply 3) it connects, and be connected on the power output end of electric cabinet.
1.4 starting electric cabinets, make to flow through 5 times of current value of rated current of every power core conductor on test specimen,
Rated current is determined by table 1.
1 conductor rated current value of table
1.5 when conductor temperature rises to 205 DEG C ± 5 DEG C, and the mobile blowtorch mixed up, burn test specimen, and starts timer
When.
1.6 burning time 1min, then remove blowtorch, while cutting through the electric current of test specimen, pay attention to observing the continuous of test specimen
It lights the passion condition, and writes down the after flame time of test specimen with stopwatch.
After 1.7 to test specimen afterflame, test specimen is removed, cleans surface of test piece with cotton, measures the char length of test specimen, is measured
Tool precision should be ± 1mm.
1.8 in test, should not there is the air flowing that may significantly influence test result in combustion box.
During above-mentioned entire test, due to cable conductor current overload, when conductor temperature rises to 205 DEG C ± 5 DEG C
The gas concentrations classifications such as heated toxic and harmful gas such as volatile organic matter (Vocs), formaldehyde, hydrogen sulfide, the hydrogen chloride volatilized
It is different, discrimination is not collected and detected.When carrying out cable flame retardance test, nocuousness that cable socket is not released
Gas is collected and analyzed detection.
Utility model content
It is received simultaneously for the toxic and harmful gas that can not be generated to cable during the test of existing cable load combustion
The problem of collection, needs a kind of side that the toxic and harmful gas that can be generated to cable load combustion test process cable is collected
Case.
For this purpose, the purpose of this utility model is to provide it is a kind of for cable flame retardance test pernicious gas collect and
Purification device is effectively collected with the toxic and harmful gas generated to cable load combustion test process cable.
In order to achieve the above object, it is provided by the utility model for cable flame retardance test pernicious gas collect and
Purification device comprising:
Negative pressure air-suction device, negative pressure air-suction device load are arranged at cable under test connector both ends, and with a gas collection
Room connection；
Collection chamber, a collection chamber is connected to secondary collection chamber, and smoke filter is arranged between the two；
Secondary collection chamber, the secondary collection chamber is interior to be arranged gas sampling unit, and secondary collection chamber is arranged at exhaust position
Gas purification filter core.
Further, the negative pressure air-suction device is connected to by Smoking pipe with a collection chamber.
Further, cigarette ash baffle is additionally provided in a collection chamber.
Further, the exhaust position of the secondary collection chamber is additionally provided with Scavenger fan.
Further, described device further includes gas chromatograph, the gas chromatograph and the indoor gas of secondary gas collection
Sampling unit connection.
The poisonous and harmful gas that scheme provided by the utility model can generate cable when doing cable load combustion test
Body is collected simultaneously, and targetedly purified treatment reaches non-pollution discharge.
Furthermore this programme cooperates corresponding gas analysis arrangement as needed, and also to cable, toxic under overload has
The test analysis of evil substance.
This programme can be simulated effectively in mine underground cable use process and once be overloaded in specific reference, generation
The pollution sex determination and flame retardant property of poisonous and harmful substance determine, prevent trouble before it happens to the accident that may occur.
Detailed description of the invention
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is power wire core cascaded structure schematic diagram on test specimen during the test of existing load combustion；
Fig. 2 is power wire core parallel-connection structure schematic diagram on test specimen during the test of existing load combustion；
Fig. 3 is the structural schematic diagram of pernicious gas collection and purification device in this example；
Fig. 4 is the schematic diagram that pernicious gas is collected in this example and purification device is applied.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Referring to Fig. 3, it show the pernicious gas that can be used for cable flame retardance test that this example provides and collects and purify
The composed structure of device.The toxic and harmful gas that the device can be used for generate cable when doing cable load combustion test is same
When collect, in order to use gas chromatograph and ultraviolet specrophotometer etc. to measure volatile organic matter, formaldehyde, vulcanization in next step
The content of hydrogen, hydrogen chloride, and can be realized non-pollution discharge.
As seen from the figure, the device 100 mainly include 110, collection chambers 120 of negative pressure air-suction device, cigarette ash baffle 130,
Smoke filter 140, secondary collection chamber 150 and gas purification filter core 160.
Wherein, the load of negative pressure air-suction device 110 is arranged at cable under test connector both ends, and passes through main Smoking pipe 111 and one
Secondary collection chamber 120 is connected to；The negative pressure air-suction device 110 is used to generate negative-pressure sucking at cable under test connector both ends, will be to be measured
The toxic and harmful gas that cable connector generates when testing adsorbs in real time.
In specific implementation, the negative pressure air-suction device 110 and load combustion test carry out chain association, that is, link.
The toxic and harmful gas that a collection chamber 120 in the present apparatus is adsorbed for tentatively collecting negative pressure air-suction device 110.
The structure type of collection chamber 120 is depending on actual needs.
It is connected between the collection chamber 120 and secondary collection chamber 150 of such structure；Simultaneously collection chamber 120 with
Cigarette ash baffle 130 and smoke filter 140 are set gradually between secondary collection chamber 150, by cigarette ash baffle 130 to entering one
Toxic and harmful gas in secondary collection chamber 120 enter except cigarette ash by the toxic and harmful gas of 130 smoke abatement of cigarette ash baffle
In smoke filter 140, carries out Smoke Filter and filter some minute dusts such as solid sols and lyosol etc., complete smog mistake
The gas of filter then enters in secondary collection chamber 150, so guarantees the accuracy that gas collecting is carried out in secondary collection chamber 150.
As an example, the cigarette ash baffle 130 in this example is arranged in oblique in support plate 131 mainly by support plate 131
Dust block board 132 and the cooperation of ash collection slot arranged at the bottom 133 are constituted.Wherein, several ventilations is provided in support plate 131
Hole, and the outlet relative to a collection chamber 120 is vertically arranged, it is isolated, while oblique dust block board 132 is relative to branch
131 upper vent hole of fagging, uniformly gathers in support plate 131, and every piece of oblique dust block board 132 all tilts down, thus adjacent
The air passage tilted down is formed between oblique dust block board 132 to be connected to 131 upper vent hole of support plate, thus can effectively be stopped
Cigarette ash in gas, and guiding is carried out by oblique dust block board 132 and slides to ash collection slot 133.Here ash collection slot 133 uses V-arrangement knot
Structure, convenient for collecting dust.
Smoke filter 140 is close to the outlet side setting of cigarette ash baffle 130 in this example, whole to use double medium filtration film
It constitutes.
Secondary collection chamber 150 in the present apparatus completes pretreated toxic and harmful gas for collecting, and is received in real time
Collection.The interior division of the secondary collection chamber 150 has 151 at gas collecting, and 151 support setting by support column 152 at the gas collecting
In secondary collection chamber 150, the medium position of preferably secondary collection chamber 150, to guarantee the reliability of acquisition data, meanwhile,
151 are provided with gas sampling unit at the gas collecting, in real time acquire toxic and harmful gas sample, with for it is subsequent at
Sorting is surveyed.The gas sampling unit and the gas chromatograph of outside are attached, in real-time detection toxic and harmful gas at
Point and content.
Meanwhile gas purification filter core 160 is arranged at the exhaust position of secondary collection chamber 150 in this example, for being adopted to completion
The toxic and harmful gas of collection carries out purification discharge.
As an example, the gas purification filter core 160 in this example is made of three layers of air purification layer, and first layer is filter screen
Layer, for example electrostatic electret strainer；The second layer is activated carbon adsorption layer；Third layer is also filtering meshes.Thus the gas constituted is net
High-efficient purification can be carried out to the gas of process by changing filter core 160.
In order to improve gas discharge efficiency, this example is by the exhaust position of secondary collection chamber 150 and leads to outdoor chimney
Connection, and corresponding high-power low-noise Scavenger fan 170 is set therebetween.
Thus the pernicious gas that can be used for cable flame retardance test constituted is collected and purification device can be overload shape
The flame retardant property of cable under state and poisonous and harmful property have carried out comprehensive analysis, and the environment-friendly type of coal mine cable is advocated and made
With there is great impetus.
When can further simulate mine downhole cable using the present apparatus and overloading, by the analysis of poisonous and harmful property to cable and
The use cost performance of flame retardant property comprehensive assessment cable.
Referring to fig. 4 which shows pernicious gas in this example is collected and purification device carry out using status diagram.
As seen from the figure, test specimen 10 is placed in burning cabinet 20 by the present apparatus when specifically used, and the both ends of test specimen 10
Burning cabinet 20 is stretched out respectively, and one end is connected to by connecting line 30, and one end passes through power supply line 40 respectively and connects power supply 50.
On this basis, pernicious gas collection and purification device are cooperated with the burning cabinet 20 for being mounted with test specimen 10, it will
Negative pressure air-suction device loads at the both ends of test specimen connector, and links with load combustion test, while by gas sampling unit
It is attached with gas chromatograph survey.
In this way, when load combustion test turn-on current heating, cable test specimen two ends joint negative pressure air-suction device just links
Start to work, by the toxic and harmful gas of cable both ends joint release after inner conductor is heated by main Smoking pipe adsorb into
Collection chamber；The double-filtration for successively passing through cigarette ash baffle and smoke filter again, into secondary collection chamber；In secondary gas collection
Interior runs continuous samples to gas by gas sampling unit, and sampled result is sent into gas chromatograph, carries out VOCS and contains
The measurement of the measurement of amount and hydrogen sulfide, hydrogen chloride.
The gas after acquisition is discharged from secondary collection chamber simultaneously, and purification, quilt are filtered by gas purification filter core
High-power low-noise Scavenger fan, which is discharged to, to lead in outdoor chimney, realizes harmless emission.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (5)
1. the pernicious gas for cable flame retardance test is collected and purification device characterized by comprising
Negative pressure air-suction device, the negative pressure air-suction device load are arranged at cable under test connector both ends, and connect with a collection chamber
It is logical；
Collection chamber, a collection chamber is connected to secondary collection chamber, and smoke filter is arranged between the two；
Secondary collection chamber, the secondary collection chamber is interior to be arranged gas sampling unit, and gas is arranged at exhaust position in secondary collection chamber
Purifying filter element.
2. pernicious gas according to claim 1 is collected and purification device, which is characterized in that the negative pressure air-suction device is logical
Smoking pipe is crossed to be connected to a collection chamber.
3. pernicious gas according to claim 1 is collected and purification device, which is characterized in that in a collection chamber also
It is provided with cigarette ash baffle.
4. pernicious gas according to claim 1 is collected and purification device, which is characterized in that the row of the secondary collection chamber
Gas position is additionally provided with Scavenger fan.
5. pernicious gas according to claim 1 is collected and purification device, which is characterized in that described device further includes gas phase
Chromatograph, the gas chromatograph are connect with the indoor gas sampling unit of secondary gas collection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820812306.0U CN208526167U (en) | 2018-05-29 | 2018-05-29 | A kind of pernicious gas collection and purification device for cable flame retardance test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820812306.0U CN208526167U (en) | 2018-05-29 | 2018-05-29 | A kind of pernicious gas collection and purification device for cable flame retardance test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208526167U true CN208526167U (en) | 2019-02-22 |
Family
ID=65381129
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820812306.0U Active CN208526167U (en) | 2018-05-29 | 2018-05-29 | A kind of pernicious gas collection and purification device for cable flame retardance test |
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| CN (1) | CN208526167U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007201A (en) * | 2019-04-18 | 2019-07-12 | 国网湖北省电力有限公司电力科学研究院 | A kind of epoxy casting type insulating tube type busbar fault detection means and method |
| CN110320314A (en) * | 2019-07-19 | 2019-10-11 | 安徽电缆股份有限公司 | Combustion test box is used in a kind of detection of cable physical property |
-
2018
- 2018-05-29 CN CN201820812306.0U patent/CN208526167U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007201A (en) * | 2019-04-18 | 2019-07-12 | 国网湖北省电力有限公司电力科学研究院 | A kind of epoxy casting type insulating tube type busbar fault detection means and method |
| CN110007201B (en) * | 2019-04-18 | 2020-05-22 | 国网湖北省电力有限公司电力科学研究院 | Epoxy pouring type insulating tubular bus fault detection device and method |
| CN110320314A (en) * | 2019-07-19 | 2019-10-11 | 安徽电缆股份有限公司 | Combustion test box is used in a kind of detection of cable physical property |
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