CN202282876U - PTC tank electrical bar using self-temperature-limiting electric tracing band as heating element - Google Patents
PTC tank electrical bar using self-temperature-limiting electric tracing band as heating element Download PDFInfo
- Publication number
- CN202282876U CN202282876U CN2011204066048U CN201120406604U CN202282876U CN 202282876 U CN202282876 U CN 202282876U CN 2011204066048 U CN2011204066048 U CN 2011204066048U CN 201120406604 U CN201120406604 U CN 201120406604U CN 202282876 U CN202282876 U CN 202282876U
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- heating
- temperature
- ptc
- heating element
- tracing band
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Abstract
The present PTC (Positive Temperature Coefficient) tank electrical bar is manufactured by heating elements adopting a high-value PTC alloy as a heating material, when the PTC tank electrical bar is used for heating a flammable liquid such as diesel oil and so on, as the highest maintaining temperature of a surface of the high-value PTC alloy electric heating material can reach to 1100 DEG C which is far higher than a burning point of the flammable liquid such as diesel oil and so on, if a temperature control device connected with a heating circuit breaks down, the electrical bar continuously performs heating, the temperature of the heated liquid may exceed the burning point thereof, then the flammable liquid burns to cause an accident. The utility model discloses a PTC tank electrical bar consisting of a bar body, heating elements, a heat-conducting filling material, and a junction box; wherein the heating element adopts a self-temperature-limiting electric tracing band, the highest maintaining temperature of the self-temperature-limiting electric tracing band is lower than the burning point of the flammable liquid, thus the temperature of the heated liquid can not reach the burning-point temperature, thereby realizing safe heating.
Description
Technical field
The utility model relates to a kind of device of heating tank in-vivo medium.
Technical background
At present, the tubular electrothermal element that it is exothermic material that the heating element of PTC electric heating stick for pot adopts high value PTC alloy is processed, and relatively has the advantage that is not easy to burn out because of accident is overheated electrical bar with adopting the permanent power heating resistance wire of constant resistance; But adopt high value PTC alloy electrothermal material; The high maintenance temperature on its surface reaches 1100 ℃, when being used to heat flammable liquid such as diesel oil, because the high maintenance temperature on high value PTC alloy electrothermal material surface is far above 220 ℃ of the burning-points of diesel oil; When if the attemperating unit that links to each other with heater circuit breaks down; Heating rod heats in this case always, and the temperature that is heated liquid can constantly raise, when surpassing its burning-point; Having under the condition of oxygen and will burn, thus accidents caused.
The purpose of the utility model provides a kind of special P TC electric heating stick for pot; It not only can equally with common PTC electric heating stick for pot have and is not easy the advantage that burns out because of accident is overheated; And the high maintenance temperature of heating element is lower than the burning-point of flammable liquids such as diesel oil; Be used to heat flammable liquids such as diesel oil, realize safe in utilization.
The utility model is achieved in that
1, with the heating element of temperature selflimiting electric tracing band as electrical bar; Replacement is the tubular electrothermal element of exothermic material with high value PTC alloy; According to existing temperature selflimiting electric tracing band specifications and models in the market; There are 65 ℃, 85 ℃, 110 ℃, 121 ℃ four kinds high maintenance temperature optional, can select, also will consider its flash-point, burning-point for flammable liquid according to the medium heating-up temperature in the tank body.Because the heating material of temperature selflimiting electric tracing band is the high molecular PTC material, resistance increases when temperature rises, power reduction; When temperature descended, resistance reduced, and power increases, so temperature selflimiting electric tracing band can not produce superheating phenomenon, and this PTC electric heating stick for pot has the automatic temperature-control function.
2, because temperature selflimiting electric tracing band unit length power is less, so the many temperature selflimiting electric tracing bands of in a heating tube, packing into.
3, in heating tube, have a stay pipe coaxial with heating tube, many temperature selflimiting electric tracing bands are arranged along stay pipe axially parallel and individual layer, and with bandage temperature selflimiting electric tracing band are fixed on the stay pipe.
4, in heating tube, outside the stay pipe, fill with the big heat conduction packing material of conductive coefficient in the space beyond the temperature selflimiting electric tracing band, improves conductive coefficient in the heating rod, improves heat transfer power, the heat conduction packing material is heat-conducting silicone grease or heat-conducting glue.
Owing to adopt above scheme, when being used to heat flammable liquid such as diesel oil,, being heated liquid and being in heated condition always even the attemperating unit that links to each other with heater circuit breaks down, can not reach its ignition temperature, so this PTC electric heating stick for pot is safe yet.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the sectional schematic diagram of heating tube of the present invention (2)
Among the figure: medium, 7 tank bodies, 8 tank body interfaces, 9 bolts, 10 terminal boxes, 11 bolts, 12 cables in 1 stay pipe, 2 heating tubes, 3 heating elements, 4 fixtures, 5 heat conduction packing materials, 6 jars
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Among the figure: heating tube (2) is welded on the terminal box (10); Many heating elements (3) are arranged along stay pipe (1) axially parallel and individual layer, and heating element (3) are fixed on the stay pipe (1) heating element (3) one terminated cables (12) with fixture (4); The other end is used heat-resistant insulation material Bao Yan; Insert in the heating tube (2), and with in the heating tube (2), outside the stay pipe (1), heat conduction packing material (5) is filled in heating element (3) space in addition.Constitute the PTC electric heating stick for pot by stay pipe (1), heating tube (2), heating element (3), fixture (4), heat conduction packing material (5), terminal box (10), cable (12); It is connected (tank body interface (8) has been welded on the tank body (7)) through bolt (9) with tank body interface (8), stretch into the inner and sealing of tank body (7).Cable during heating (12) energized, heating element (3) is converted into heat energy with electric energy, and the heat of generation conducts to heating tube (2) through heat conduction packing material (5), and heating tube (2) passes through its surface with medium (6) in the heat transferred jar.Terminal box (10) plays the seal protection electrical wiring.The PTC tank body heating rod of embodiment; It is the temperature selflimiting electric tracing band of 110 ℃ of specifications that heating element (3) adopts high maintenance temperature; Fixture (4) can adopt glass fabric aluminum foil composite glue band or glass fiber cloth rubber belt, is glass fabric aluminum foil composite glue band in this instance, and heat conduction packing material (5) can adopt heat-conducting silicone grease or heat-conducting glue; Be heat-conducting silicone grease in this instance, medium (6) is a diesel oil in jar.When heating, because the heating material of heating element (3) is the high molecular PTC material, resistance increases when temperature rises, power reduction; When temperature descended, resistance reduced, and power increases, so when heating-up temperature rises; The resistance of heating element (3) increases, and power reduction is along with diesel fuel temperature raises; The temperature of temperature selflimiting electric tracing band 3 also raises, and when reaching 110 ℃ of its high maintenance temperature, its power reduction is to approaching 0; Even the attemperating unit that therefore links to each other with heater circuit breaks down, diesel oil is heated always, also can be above 110 ℃; Be lower than 220 ℃ of the burning-points of diesel oil, be not easy the advantage that burns out because of accident is overheated so this PTC tank body heating rod not only has, and safe in utilization.
Claims (6)
1. one kind is the PTC electric heating stick for pot of heating element with temperature selflimiting electric tracing band; Constitute by stay pipe (1), heating tube (2), heating element (3), fixture (4), terminal box (10), cable (12); It is connected with tank body interface (8) through bolt (9) and seals; Stretch into the inner heating of tank body (7), it is characterized in that: heating element (3) is a temperature selflimiting electric tracing band.
2. PTC electric heating stick for pot according to claim 1; It is characterized in that: heating tube (2) is welded on the terminal box (10); Many heating elements (3) are arranged along stay pipe (1) axially parallel and individual layer, and heating element (3) are fixed on the stay pipe (1) heating element (3) one terminated cables (12) with fixture (4); The other end is used heat-resistant insulation material Bao Yan, inserts in the heating tube (2).
3. PTC electric heating stick for pot according to claim 2 is characterized in that: in heating tube (2), outside the stay pipe (1), heat conduction packing material (5) is filled in heating element (3) space in addition.
4. PTC electric heating stick for pot according to claim 3 is characterized in that: heat conduction packing material (5) is heat-conducting silicone grease or heat-conducting glue.
5. PTC electric heating stick for pot according to claim 4 is characterized in that: heating tube (2) can be one or more.
6. PTC electric heating stick for pot according to claim 5 is characterized in that: fixture (4) is glass fiber cloth rubber belt or glass fabric aluminum foil composite glue band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204066048U CN202282876U (en) | 2011-10-22 | 2011-10-22 | PTC tank electrical bar using self-temperature-limiting electric tracing band as heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204066048U CN202282876U (en) | 2011-10-22 | 2011-10-22 | PTC tank electrical bar using self-temperature-limiting electric tracing band as heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282876U true CN202282876U (en) | 2012-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204066048U Expired - Lifetime CN202282876U (en) | 2011-10-22 | 2011-10-22 | PTC tank electrical bar using self-temperature-limiting electric tracing band as heating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511136A (en) * | 2013-10-29 | 2014-01-15 | 沈阳工业大学 | Fuel tank heating rod |
| CN110091390A (en) * | 2019-06-10 | 2019-08-06 | 西安鹰实压合机电设备有限公司 | A kind of method and its conducting structure of heating platen and the transmitting of heating rod gapless heat |
-
2011
- 2011-10-22 CN CN2011204066048U patent/CN202282876U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511136A (en) * | 2013-10-29 | 2014-01-15 | 沈阳工业大学 | Fuel tank heating rod |
| CN110091390A (en) * | 2019-06-10 | 2019-08-06 | 西安鹰实压合机电设备有限公司 | A kind of method and its conducting structure of heating platen and the transmitting of heating rod gapless heat |
| CN110091390B (en) * | 2019-06-10 | 2024-03-19 | 西安鹰实压合机电设备有限公司 | Method for zero-clearance heat transfer between hot-pressing plate and heating rod and conduction structure thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |