CN201983877U - Armored main shaft sealing resistance temperature detector (RTD) sealing structure - Google Patents
Armored main shaft sealing resistance temperature detector (RTD) sealing structure Download PDFInfo
- Publication number
- CN201983877U CN201983877U CN2011200533559U CN201120053355U CN201983877U CN 201983877 U CN201983877 U CN 201983877U CN 2011200533559 U CN2011200533559 U CN 2011200533559U CN 201120053355 U CN201120053355 U CN 201120053355U CN 201983877 U CN201983877 U CN 201983877U
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- rtd
- main shaft
- resistance temperature
- sealing
- armored
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Abstract
The utility model discloses an armored main shaft sealing resistance temperature detector (RTD) sealing structure, which comprises a stainless steel casing in which a plurality of signal lines are disposed, insulating varnish coated on the outsides of the signal lines and an insulating jacket tube covering the outside of the insulating varnish to prevent water from entering and causing a short circuit. The armored main shaft sealing RTD sealing structure coats the insulating varnish on the outsides of the RTD signal lines and further arranges a layer of the insulating jacket tube in order to enhance insulation, improve a sealing property of the RTD and realize reliable and accurate measurement of the shaft sealing temperature.
Description
Technical field
The utility model relates to non electrical quantity detection technique field, particularly armored main shaft seal thermal resistance temperature element (RTD) encapsulating structure.
Background technology
In recent years, domestic water-storage unit puts into operation in a large number, need experience generating-phase modulation-draw water-phase modulation-power generation process every day, especially in the phase modulation process, can produce vibration great, violent, repeatedly and impact, main shaft seal thermal resistance temperature element (RTD) abnormal failure in use frequently takes place in many units, and causes water-storage unit generation tripping operation accident.
Cause the partly cause of RTD abnormal failure to be, there is defective in the RTD insulation-encapsulated, this class RTD temperature element has the platinum filament coiling to form, platinum filament is wound on the ceramic skeleton, RTD is encapsulated in the armour cover that is full of magnesia powder, it is drawn signal wire and is not taked insulation measures, and breach appears in signal extension line encapsulation mouth, causes main shaft seal water to enter RTD and causes the output signal short circuit.
Concerning commercial Application, usually do not require that RTD has very high degree of accuracy and repdocutbility, but require under the hostile environment condition as vibration, water, pressure, magnetic field, thermal cycle and corrosive gas etc., long-time stability and reliability are preferably arranged, therefore, mounting process, method and the on-the-spot correct installation in stainless steel casing of the sleeve pipe of RTD and RTD temperature element is very important.
The utility model content
The purpose of this utility model is to solve the deficiencies in the prior art a kind of armored main shaft seal thermal resistance temperature element (RTD) encapsulating structure is provided, take insulation measures and encapsulation by RTD being drawn signal wire, prevent to seal water intrusion RTD and cause short circuit accident to take place.
In order to realize above-mentioned and other purpose, the utility model provides a kind of armored main shaft seal thermal resistance temperature element encapsulating structure, comprises stainless steel casing, is provided with many signal wires in the described stainless steel casing, also comprises:
Insullac applies setting outside described signal wire;
Insulating sleeve is provided with in described insullac outer wrapping.
Further being characterized as described many signal wires is 3 signal wires.
Advantage of the present utility model is: the outside at the RTD signal wire applies insullac, and one deck insulating sleeve is set again, to increase insulation function, improves the RTD sealing, realizes reliability and correct measurement to the main shaft seal temperature.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Embodiment
Below by specific instantiation and accompanying drawings embodiment of the present utility model, those skilled in the art can understand other advantage of the present utility model and effect easily by the content that this instructions disclosed.The utility model also can be implemented or be used by other different instantiation, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present utility model not deviating from.
As shown in Figure 1, armored main shaft seal thermal resistance temperature element encapsulating structure of the present utility model, comprise stainless steel casing 1 and signal wire 2, signal wire 2 is arranged in the stainless steel casing 1, outside signal wire 2, also comprise insullac 3 and insulating sleeve 4, insullac 3 applies one deck outside signal wire 2, insulating sleeve 4 causes short circuit in insullac 3 outer wrapping settings to prevent that water from invading.
Preferable signal wire 2 is set to 3 in stainless steel casing 1, can certainly be many, is not limited thereto, and those skilled in the art can design as required.
Outside at the RTD signal wire applies insullac 3, and one deck insulating sleeve 4 is set again, to increase insulation function, improves the RTD sealing, realizes reliability and correct measurement to the main shaft seal temperature.
The foregoing description is illustrative principle of the present utility model and effect thereof only, but not is used to limit the utility model.Any those skilled in the art all can be under spirit of the present utility model and category, and the foregoing description is modified and changed.Therefore, rights protection scope of the present utility model should be listed as claims.
Claims (2)
1. an armored main shaft seal thermal resistance temperature element encapsulating structure comprises stainless steel casing, is provided with many signal wires in the described stainless steel casing, it is characterized in that, also comprises:
Insullac applies setting outside described signal wire;
Insulating sleeve is provided with in described insullac outer wrapping.
2. armored main shaft seal thermal resistance temperature element encapsulating structure as claimed in claim 1 is characterized in that the quantity of described signal wire is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200533559U CN201983877U (en) | 2010-11-12 | 2011-02-23 | Armored main shaft sealing resistance temperature detector (RTD) sealing structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010543396.6 | 2010-11-12 | ||
| CN201010543396 | 2010-11-12 | ||
| CN2011200533559U CN201983877U (en) | 2010-11-12 | 2011-02-23 | Armored main shaft sealing resistance temperature detector (RTD) sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201983877U true CN201983877U (en) | 2011-09-21 |
Family
ID=44611336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200533559U Expired - Lifetime CN201983877U (en) | 2010-11-12 | 2011-02-23 | Armored main shaft sealing resistance temperature detector (RTD) sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201983877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568525A (en) * | 2015-10-07 | 2017-04-19 | 宁夏琪凯节能设备有限公司 | Energy-saving temperature transmitter |
-
2011
- 2011-02-23 CN CN2011200533559U patent/CN201983877U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568525A (en) * | 2015-10-07 | 2017-04-19 | 宁夏琪凯节能设备有限公司 | Energy-saving temperature transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |