CN2349566Y - Grain state temp.-measuring cable - Google Patents
Grain state temp.-measuring cable Download PDFInfo
- Publication number
- CN2349566Y CN2349566Y CN 98250741 CN98250741U CN2349566Y CN 2349566 Y CN2349566 Y CN 2349566Y CN 98250741 CN98250741 CN 98250741 CN 98250741 U CN98250741 U CN 98250741U CN 2349566 Y CN2349566 Y CN 2349566Y
- Authority
- CN
- China
- Prior art keywords
- measuring temperature
- cable
- fumigation
- utility
- zinc
- 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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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a temperature measuring cable, which is suitable for grain state detection in a grain depot and in a control system. The utility model is formed by the welding of a sensor element and a plurality of output copper conductors. The utility model adopts a plurality of intelligent sensing elements DS1820 to respectively be connected in parallel and welded on three output copper conductors; the three output copper conductors are mutually insulated and are treated by steaming resistance and wicking; the interval distance between each intelligent sensing element is 1-2m; the outer side of the three copper conductors and the intelligent sensing elements are high pressure polyvinyl-chloride insulation protective sleeves. Single strand or double strand enhancement steel cables are arranged in the insulation protective sleeve of the utility model; the steel cable is treated through waterproofing, steaming resistance and wicking.
Description
The utility model relates to a kind of cable for measuring temperature of using in the grain depot grain feelings Detection ﹠ Controling system of being suitable for.
The cable for measuring temperature that uses has plenty of the employing thermistor at present, has plenty of and adopts useful PN junction, and the employing thermopair that also has is that temperature element and output lead are formed by connecting, and the ubiquitous problem of the cable for measuring temperature of this structure is:
1, if the output line radical is many, in same cable for measuring temperature when establishing n temperature element (point for measuring temperature), just needs n+1 root output line, and it is many to imply the trouble spot.
2, need analog to digital conversion, the temperature element output of adopting now be analog quantity, need analog to digital conversion, be subjected to the influence of element function, the general linearity is bad, temperature characterisitic is poor, especially the temperature of thermistor is floated big especially.
3, complicated integral structure owing to be subjected to the influence of the thermometric construction of cable, causes whole Detection ﹠ Controling system architecture complexity, needs vasculum, extension set, main frame and computing machine.Because the entire equipment complexity causes difficulty, poor reliability is installed.
4, vasculum need be placed in the grain depot, and is carrying out conventional phosphatization cyanogen fumigation desinsection to storing up grain when handling, and can cause corrosion to joint on the vasculum and plug-in unit, influences serviceable life.
Shortcomings such as (generally at several milliamperes～tens milliamperes) that existing in addition transmission cable exists also that transmission signals is weak, precision is low, power consumption is big.
The purpose of this utility model is intended to overcome the deficiency of prior art, and a kind of reasonable in design, simple is provided, and is easy to use, reliable, the grain feelings cable for measuring temperature that digital signal output is far away, precision is high.
The utility model is to be welded by sensing element and many output copper conductors.On a plurality of smart sensor DS1820 (1) that the utility model adopts output copper conductor (2) that is welded on three mutually insulateds and passes through anti-fumigation, zinc-plated processing in parallel respectively, (3), (4), the spacing distance between each smart sensor (1) is 1～2 meter.In the outside of three copper conductors (2), (3), (4) and smart sensor (1) is high-pressure polyvinyl chloride insulating sheath (5).
Output copper conductor of the present utility model (2), (3), (4) are the multiply copper conductor, and its sectional area is not less than 0.3 square millimeter.
In the utility model insulating sheath (5), be provided with sub-thread or bifilar reinforcement wire rope (6) through waterproof, the anti-zinc-plated processing of fumigation.
In the outside bundled arrangement of the utility model insulating sheath (5) through the multi-strand wire rope (7) of waterproof, anti-fumigation, zinc-plated processing, in the outside of wire rope (7) with plastic tube (9).
Install around metal steel disc (8) in the outside of plastic tube (9) at the utility model, be added with one deck plastic foil (10) in the outside of metal steel disc (8) through waterproof, the anti-zinc-plated processing of fumigation.
The utlity model has following advantage:
1, the output line radical is few, only needs three, and therefore simple in structure, fault is few;
2, do not need analog to digital conversion, directly export digital signal, omitted the vasculum in the conventional art, extension set, directly by thermometric main frame input computing machine, use equipment is simple, and is easy for installation, good reliability;
In silo, do not have exposed, joint, plug-in unit when 3, using, reduced the possibility of equipment corrosion;
4, transmission data distance, precision height, (generally at several microampere orders) low in energy consumption.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing preferred embodiment of the utility model is further described:
As shown in the figure, a plurality of sensing element DS1820 of the present utility model (1) are welded on three output copper conductors (2), (3), (4) securely.And do insulation and handle.Article three, copper conductor is the multiply copper conductor, and sectional area is not less than 0.3 square millimeter, and mutually insulated is good, and copper conductor is respectively through the anti-zinc-plated processing of fumigation.The parallel connection of sensing element (1) difference is on three copper conductors, space between the sensing element is 1～2 meter, appearance is a high-quality high-pressure polyvinyl chloride insulating sheath (5), and this insulating sheath satisfies the request for utilization of tension, resistance to compression, anti-aging, anticorrosive, low temperature resistant (40 ℃～+ 80 ℃).For gaining in strength, with three copper conductors arranged side by side sub-thread or twin cable (6), can make cable tensile strength greater than 800 kilograms.For further strengthening resistance to tension, the utility model can also be tied up through the multi-strand wire rope (7) of waterproof, anti-fumigation, zinc-plated processing and strengthen.(as using diameter 1.4mm wire rope, its quantity should equal 2 times of copper conductor number) has plastic tube (9) in the outside of wire rope (7).
Tall and big in the time of 15 meters in the grain storage storehouse, guarantee that tensile strength is greater than 4 tons; Tall and big in the time of 35 meters in the storehouse, guarantee that tensile strength is greater than 7 tons.For making the utility model tensile strength higher, to adapt to special needs, can also install around metal steel disc (8) in the outside of plastic tube (9) through waterproof, anti-fumigation, zinc-plated processing, be added with one deck plastic foil (10) in the outside of metal steel disc (8).
Using method of the present utility model is identical with the using method of measurement cable in the prior art.
Claims (5)
1, a kind of grain feelings cable for measuring temperature, be welded by sensing element and many output copper conductors, it is characterized in that on a plurality of smart sensor DS1820 (1) output copper conductor (2) that is welded on three mutually insulateds and passes through the anti-zinc-plated processing of fumigation in parallel respectively, (3), (4), the spacing distance of asking of each smart sensor (1) is 1～2 meter, is high-pressure polyvinyl chloride insulating sheath (5) in the appearance of three copper conductors (2), (3), (4) and smart sensor (1).
2, the described cable for measuring temperature of root a tree name claim 1 is characterized in that exporting copper conductor (2), (3), (4) and is the multiply copper conductor, and its sectional area is not less than 0.3 square millimeter.
3, cable for measuring temperature according to claim 2 is characterized in that being provided with sub-thread or bifilar reinforcement wire rope (6) through waterproof, anti-fumigation, zinc-plated processing in insulating sheath (5).
4, the described cable for measuring temperature of root a tree name claim 3 is characterized in that in the outside bundled arrangement of insulating sheath (5) multi-strand wire rope (7) through waterproof, anti-fumigation, zinc-plated processing, in the outside of steel rope with plastic tube (9).
5, the described cable for measuring temperature of root a tree name claim 4 is characterized in that having installed around the metal steel disc (8) that passes through waterproof, anti-fumigation, zinc-plated processing in the outside of plastic tube (9), is added with one deck plastic foil (10) in the outside of metal steel disc (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98250741 CN2349566Y (en) | 1998-12-17 | 1998-12-17 | Grain state temp.-measuring cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98250741 CN2349566Y (en) | 1998-12-17 | 1998-12-17 | Grain state temp.-measuring cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2349566Y true CN2349566Y (en) | 1999-11-17 |
Family
ID=33995140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98250741 Expired - Fee Related CN2349566Y (en) | 1998-12-17 | 1998-12-17 | Grain state temp.-measuring cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2349566Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589749A (en) * | 2012-03-12 | 2012-07-18 | 卜玉良 | Temperature measurement cable component of grain condition measurement and control system |
| CN109029574A (en) * | 2018-07-27 | 2018-12-18 | 安徽益宁信息工程科技有限公司 | A kind of granary temperature water content detection integrated cable |
-
1998
- 1998-12-17 CN CN 98250741 patent/CN2349566Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589749A (en) * | 2012-03-12 | 2012-07-18 | 卜玉良 | Temperature measurement cable component of grain condition measurement and control system |
| CN102589749B (en) * | 2012-03-12 | 2014-09-10 | 卜玉良 | Temperature measurement cable component of grain condition measurement and control system |
| CN109029574A (en) * | 2018-07-27 | 2018-12-18 | 安徽益宁信息工程科技有限公司 | A kind of granary temperature water content detection integrated cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Harbin Automation Instrument and Meter Inst. Document name: Notice of termination |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |