CN201569513U - Device for measuring coal bed temperature - Google Patents
Device for measuring coal bed temperature Download PDFInfo
- Publication number
- CN201569513U CN201569513U CN2009202835626U CN200920283562U CN201569513U CN 201569513 U CN201569513 U CN 201569513U CN 2009202835626 U CN2009202835626 U CN 2009202835626U CN 200920283562 U CN200920283562 U CN 200920283562U CN 201569513 U CN201569513 U CN 201569513U
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- CN
- China
- Prior art keywords
- cable conductor
- temperature
- coal bed
- coal seam
- measuring equipment
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a device for measuring the coal bed temperature, which comprises a cable conductor; a plurality of temperature measuring chips are arranged in parallel on the cable conductor in the length direction; a polyvinyl chloride inner sheath is mounted outside the cable conductor; an armoured wire is mounted outsidethe polyvinyl chloride inner sheath; and a high pressure polyethylene outer sheath is mounted outside the armoured wire. The utility model has the benefits that the inside temperature of the coal bed can be measured in multiple points in a cable manner, so that reflecting the temperature conditions in various points of the inner part of the coal bed can be reflected accurately, conveniently and stereoscopically.
Description
Technical field
The utility model relates to a kind of device of testing the coal seam temperature, specifically is a kind of coal seam temperature measuring equipment, is particularly useful for abominable relatively complicated field condition, can carry out the multiple spot contact temperature-measuring.
Background technology
At present, it is more that enterprises such as the Coal Chemical Industry of domestic various places, fuel-burning power plant use the situation of silo storage coal, but domestic silo coal storage repeatedly catches fire, even the situation that has silo to blast.In order to monitor the generation that the coal seam temperature inside prevents the spontaneous combustion disaster, in the large-scale coal storage silo in large-scale cogeneration plant engineering temperature probe is installed all, and thermojunction type or platinum resistance formula sensor that domestic existing most temperature probes adopt, the thermometric mode all is the point type thermometric, quantity of sampling quantity is few and can't go deep into inside, coal seam and carry out temperature sampling, can't truly reflect the coal seam temperature inside, thereby cause the inaccurate of test.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of coal seam temperature measuring equipment, can multi-point sampler coal seam temperature inside.
The utility model is realized with following technical scheme: a kind of coal seam temperature measuring equipment, comprise cable conductor, a plurality of thermometric chips on cable conductor, have been installed in parallel along its length, the periphery of cable conductor is enclosed with pvc sheath, the pvc sheath outside is equipped with armouring wire, and the armouring wire outside is equipped with the high pressure polyethylene oversheath.
The beneficial effects of the utility model are: realize the unibus communication of temperature element, form with cable is provided with multi-point sampler coal seam temperature inside, thereby can inside, three-dimensional accurately and conveniently reflection coal seam the situation of temperature everywhere, simple in structure, easy to install.
Description of drawings
Fig. 1 is the utility model electrical schematic diagram;
Fig. 2 is the utility model structural representation.
Among the figure: 1, cable conductor, 2, pvc sheath, 3, armouring wire, 4, the high pressure polyethylene oversheath, 5, the thermometric chip.
Embodiment
As shown in Figure 1, a kind of coal seam temperature measuring equipment comprises cable conductor 1, and evenly distributing along its length on cable conductor 1 is parallel with several thermometric chips 5.Thermometric chip 5 adopts digital temperature sensor DS18B20.Two cable conductors that the VDD of temperature sensor DS18B20, GND pin pass through wherein respectively are connected with VCC, GND, and the DQ pin is connected by the I/O mouth of the 3rd cable conductor and intelligent acquisition instrument.
As shown in Figure 2, cable conductor 1 adopts the triple cable lead, and the triple cable lead adopts tinned copper wire to make, and resistance to corrosion is strong.External packets at cable conductor 1 is wrapped with pvc sheath 2, and pvc sheath 2 outsides are equipped with armouring wire 3, and armouring wire 3 outsides are equipped with high pressure polyethylene oversheath 4.The thermometric new film 5 that 2 pairs of pvc sheaths are welded on the cable conductor 1 carries out the anti-extrusion protection of ground floor.At pvc sheath 2 outsides parcel one deck armouring wire 3, armouring wire 3 plays the effect of stretching resistance, and armouring wire 3 adopts steel wire strand, and number of share of stock is according to the height decision in storehouse, and the number of share of stock of the high more steel wire of the height of coal bunker is many more, otherwise reduces.At outer wrap one deck high pressure polyethylene oversheath 4 of armouring wire 3, thermometric new film 5 is carried out the anti-extrusion protection of the second layer at last.Length at an end armouring wire 3 of coal seam temperature measuring equipment will exceed about 430 centimetres of high pressure polyethylene oversheaths.
Working method: ready-made coal seam temperature measuring equipment is vertically hung at the coal bunker top, be stuck in the position that armouring wire 3 exceeds high pressure polyethylene oversheath 4, the coal seam temperature measuring equipment is fixed with chuck or U type sieve silk.Forbid to block Polyvinylchloride inner sheath 2 and high pressure polyethylene oversheath 4, make armouring wire 3 stressed even.Just temperature signal directly can be sent to outside instrument by several digital formula temperature sensor DS18B20 that distribute on the cable conductor 1 handles.
In the present embodiment, the DS18B20 digital temperature sensor adopts Single Wire Bus Technology, can effectively reduce extraneous interference, improve the precision of measuring, simultaneously, it can directly change into dut temperature serial digital signal for MICROCOMPUTER PROCESSING, interface is simple, makes data transmission and handles simplification.DS18B20 has following fundamental characteristics:
1, adopts the 1-Wire bus interface, can conveniently realize multi-point temperature measurement.
2, easy to connect with main frame, need not other additional devices except that the bus pull-up resistor of 5k Ω.
3, the supply voltage scope is 3.0～5.5V, with 3.3V and 5V digital display circuit all can be compatible well.
4, measurement range is-55～+ 125 ℃, resolution be 9～12 able to programme.
5, by programming the temperature alarming bound can be set, the power down of the value of setting is not lost.
6, the inner integrated 64bit photoetching ROM coding that is used for the device addressing.
Claims (3)
1. coal seam temperature measuring equipment, comprise cable conductor (1), it is characterized in that: a plurality of thermometric chips in parallel along its length (5) on cable conductor, periphery at cable conductor is enclosed with pvc sheath (2), armouring wire (3) is equipped with in pvc sheath (2) outside, and high pressure polyethylene oversheath (4) is equipped with in armouring wire (3) outside.
2. a kind of coal seam according to claim 1 temperature measuring equipment is characterized in that: described a plurality of thermometric chips (5) evenly distribute and are connected in parallel on the cable conductor (1).
3. a kind of coal seam according to claim 1 temperature measuring equipment is characterized in that: described thermometric chip (5) adopts digital temperature sensor DS18B20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202835626U CN201569513U (en) | 2009-12-17 | 2009-12-17 | Device for measuring coal bed temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202835626U CN201569513U (en) | 2009-12-17 | 2009-12-17 | Device for measuring coal bed temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569513U true CN201569513U (en) | 2010-09-01 |
Family
ID=42661806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202835626U Expired - Fee Related CN201569513U (en) | 2009-12-17 | 2009-12-17 | Device for measuring coal bed temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201569513U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305668A (en) * | 2011-04-24 | 2012-01-04 | 宋志军 | Multi-point temperature measuring cable-type sensor for coal bed |
| CN103105247A (en) * | 2013-01-22 | 2013-05-15 | 徐州中矿奥特麦科技有限公司 | Coal bed multipoint temperature measuring cable-tray sensor |
| CN108362399A (en) * | 2018-05-02 | 2018-08-03 | 吉林大学 | A kind of cable for measuring temperature |
| CN108362399B (en) * | 2018-05-02 | 2024-04-26 | 吉林大学 | Temperature measurement cable |
-
2009
- 2009-12-17 CN CN2009202835626U patent/CN201569513U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305668A (en) * | 2011-04-24 | 2012-01-04 | 宋志军 | Multi-point temperature measuring cable-type sensor for coal bed |
| CN103105247A (en) * | 2013-01-22 | 2013-05-15 | 徐州中矿奥特麦科技有限公司 | Coal bed multipoint temperature measuring cable-tray sensor |
| CN108362399A (en) * | 2018-05-02 | 2018-08-03 | 吉林大学 | A kind of cable for measuring temperature |
| CN108362399B (en) * | 2018-05-02 | 2024-04-26 | 吉林大学 | Temperature measurement cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20171217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |