CN208657108U - Thermal technology's measuring point transmitter automatic heat insulation device - Google Patents
Thermal technology's measuring point transmitter automatic heat insulation device Download PDFInfo
- Publication number
- CN208657108U CN208657108U CN201821132653.5U CN201821132653U CN208657108U CN 208657108 U CN208657108 U CN 208657108U CN 201821132653 U CN201821132653 U CN 201821132653U CN 208657108 U CN208657108 U CN 208657108U
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- Prior art keywords
- netted
- self
- plate body
- measuring point
- heating cable
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- Expired - Fee Related
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Abstract
The utility model relates to one of power industry thermal control profession thermal technology's measuring point transmitter automatic heat insulation devices.Technical solution: including netted plate body, it is characterized in that: S-shaped self-limiting heating cable is arranged on netted plate body, self-limiting heating cable one end grounding connection, the other end connects power supply, netted heat dissipating housing is arranged in the size of corresponding netted plate body, and phosphor strip is arranged in netted heat dissipating housing periphery.The utility model has the advantages that the use for the electric heater being process with self-limiting heating cable substantially increases the reliability of equipment, substantially prolong the service life of heater, it can be used 5 years generally according to the service life of self-limiting heating cable, measuring point transmitter thermal insulation cabinet winter no longer occurs for boiler circuit thermal technology the problem of causing sampling line to freeze because of heater failure.
Description
Technical field
The utility model relates to one of power industry thermal control profession thermal technology's measuring point transmitter automatic heat insulation devices.
Background technique
At present in thermal power plant's boiler circuit thermal technology measuring point transmitter thermal insulation cabinet, to prevent the low pipeline of temperature from freezing, generally adopt
With DJR aluminum alloy electric heater, DJR electric heater uses aluminium alloy extrusions for heat conductor, to increase its heat dissipation area, each
There are tiny radiating ribs on cooling fin, it is internal that nichrome resistance wire is used to be equipped with prime mica plate production again for heat generating core
It forms, DJR heater is invariable power heater, and cannot generally be used alone must cooperate temperature controller and fan to use, therefore
The reliability of DJR electric heater substantially reduces, when temperature is lower in thermal power plant's boiler circuit thermal technology measuring point transmitter thermal insulation cabinet
Heater failure can lead to steam water-level, feedwater flow measurement misalignment, or even can lead to the non-matters of aggravation stopped of unit.
Summary of the invention
The purpose of this utility model is to improve the reliability of thermal insulation cabinet internal heater, is improved service life, and defect hair is reduced
Raw rate avoids causing sampling line in thermal power plant's boiler circuit thermal technology's measuring point transmitter thermal insulation cabinet to freeze due to heater failure,
Steam water-level, feedwater flow measurement misalignment or even the non-matters of aggravation stopped of unit are caused, unit reliability of operation is improved.
Technical solution: including netted plate body, it is characterized in that: S-shaped self-limiting heating cable, self limiting temperature are arranged on netted plate body
Heating tape one end grounding connection, the other end connect power supply, and netted heat dissipating housing, netted heat dissipating housing is arranged in the size of corresponding netted plate body
Phosphor strip is arranged in periphery.
The utility model has the advantages that the self-limiting heating cable in this technology is parallel with two by conductive polymer composite (plastics)
The flat ribbon cable that plain conductor and temperature selflimiting electric tracing band cable insulation jacket are constituted, characteristic is that conducting polymer is compound
Material has positive temperature coefficient " PTC " characteristic, and it is parallel with one another, output work can be automatically adjusted with the temperature change for the system that is heated
Rate, the temperature of volitional check heating." PTC " characteristic, that is, positive temperature coefficient effect, refer to resistivity of material with temperature increase and
Increase, and the characteristic that increased dramatically in certain temperature compartment resistivity；
Self-limiting heating cable mainly has a little:
(1) with the variation of environment temperature, and automatic power adjustment exports, and has good energy conservation characteristic；
(2) be not in superheating phenomenon, without additional installation temperature limit device, allow the overlapping installation of heating tape；
(3) it can arbitrarily length cut, will not influence power output in unit length；
The use for the electric heater being process with self-limiting heating cable substantially increases the reliability of equipment, greatly prolongs
The service life of heater, can be used 5 years generally according to the service life of self-limiting heating cable, and boiler circuit thermal technology's measuring point becomes
Send device thermal insulation cabinet winter that the problem of causing sampling line to freeze because of heater failure no longer occurs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment.
Specific embodiment
Referring to attached drawing 1, the present embodiment mainly includes netted plate body 1, and S-shaped self-limiting heating cable is arranged on netted plate body 1
2,2 one end grounding connection 6 of self-limiting heating cable, the other end connects power supply 7, and netted heat dissipating housing is arranged in the size of corresponding netted plate body
3, phosphor strip 4 is arranged in netted 3 periphery of heat dissipating housing, and fixed hook 5 is arranged in the side of inspection when convenient for dark, netted plate body 1.
The size of netted plate body and the length of self-limiting heating cable can be determined according to the practical heating temperature in scene and area, side
Just quick.
Claims (2)
1. thermal technology's measuring point transmitter automatic heat insulation device, including netted plate body, it is characterized in that: S-shaped is arranged on netted plate body certainly
Warm heating tape is limited, self-limiting heating cable is by conductive polymer composite and two parallel metal wires and self-temperature limiting electric tracing
The flat ribbon cable that tape cable insulating sheath is constituted, self-limiting heating cable one end grounding connection, the other end connects power supply, corresponding
Netted heat dissipating housing is arranged in the size of netted plate body.
2. thermal technology's measuring point transmitter automatic heat insulation device according to claim 1, it is characterized in that: netted heat dissipating housing periphery is set
Set phosphor strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821132653.5U CN208657108U (en) | 2018-07-17 | 2018-07-17 | Thermal technology's measuring point transmitter automatic heat insulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821132653.5U CN208657108U (en) | 2018-07-17 | 2018-07-17 | Thermal technology's measuring point transmitter automatic heat insulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208657108U true CN208657108U (en) | 2019-03-26 |
Family
ID=65784688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821132653.5U Expired - Fee Related CN208657108U (en) | 2018-07-17 | 2018-07-17 | Thermal technology's measuring point transmitter automatic heat insulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208657108U (en) |
-
2018
- 2018-07-17 CN CN201821132653.5U patent/CN208657108U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20190717 |