CN104807170A - Short-circuiting electric heater - Google Patents
Short-circuiting electric heater Download PDFInfo
- Publication number
- CN104807170A CN104807170A CN201510234144.8A CN201510234144A CN104807170A CN 104807170 A CN104807170 A CN 104807170A CN 201510234144 A CN201510234144 A CN 201510234144A CN 104807170 A CN104807170 A CN 104807170A
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- China
- Prior art keywords
- liquid conveying
- electric heater
- woven hose
- pipe
- conveying pipe
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- 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.)
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Abstract
The invention relates to the technical field of industrial process electric heating, in particular to a short-circuiting electric heater, which comprises a plurality of metal liquid conveying pipes, wherein the metal liquid conveying pipes are serially connected by an U-shaped connecting pipe; the first liquid conveying pipe and the final liquid conveying pipe are provided with a liquid inlet and a liquid outlet; one end of each metal liquid conveying pipe is connected with a phase line of a power source, and the other end of each metal liquid conveying pipe is connected with a ground line; furthermore, the metal liquid conveying pipes are arranged in a heat insulation device; furthermore, nitrogen is filled into the heat insulation device; preferably, a plurality of areas are separated along the liquid inlet to the liquid outlet, and the pipe power densities of the areas are distributed from large to small. The short-circuiting electric heater has the advantages that the surface temperature of each liquid conveying pipe is lowered, and the service life of the equipment is prolonged; the liquid conveying pipes are centralized into one heat insulation cylinder, so the external whole heat consumption is decreased, and the electric distributing cost and power cable cost are reduced.
Description
Technical field
The present invention relates to industrial process electric-heating technology field, especially a kind of short circuit electric heater.
Background technology
A kind of electric heater using self conveyance conduit as exothermic material, we are often called short circuit heater, feature does not need dedicated electric heater, the thermal efficiency is high, convenient for installation and maintenance, as long as metallic conduit all can be implemented, original pipeline is not needed to open insulation material, only the place of connecting electrode is being needed to open partial insulation, so install very convenient.But the major defect of this heater structure is:
1, distribution is very difficult at the scene, joins a distance, is again high-current equipment, and power cable cost is high.
2, whole pipeline power output is constant, and the energy that the medium that obvious inlet temperature is low is taken away is many, and pipe temperature is also low, and when outlet, medium temperature is high, and the energy obviously taken away on pipeline is also few, and pipe temperature is high, and whole pipe temperature is uneven.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of short circuit electric heater.
In order to solve the problems of the technologies described above, the present invention includes some metal woven hoses, described metal woven hose is connected by U-shaped tube connector, described first and last root metal woven hose are provided with inlet and liquid outlet, described metal woven hose one end is connected with the phase line of electrical source of power, and the other end is connected with ground wire.
Further, described technology woven hose is placed in attemperator.
Further, nitrogen is filled with in described attemperator.
Preferably, be divided into some regions along inlet to liquid outlet direction, the descending distribution of tube-surface power density in each region.
Advantageous Effects of the present invention is:
1, the power provided reduces from the inlet of woven hose successively to liquid outlet direction, can reduce the length of woven hose, reduces material cost;
2, reduce the surface temperature of woven hose, the service life of extension device.
3, woven hose is concentrated in an insulation cylindrical shell, reduces external overall hear rate, decrease the cost of distribution cost and power cable simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Embodiment cited by the present invention; just understand the present invention for helping; should not be construed as limiting the scope of the present invention; for those skilled in the art; without departing from the inventive concept of the premise; can also improve the present invention and modify, these improve and modification also falls in the scope of the claims in the present invention protection.
As shown in Figure 1, the present invention includes some metal woven hoses 1, be generally steel pipe, described metal woven hose 1 is connected by U-shaped tube connector 2, and in order to avoid thermal loss, described metal woven hose 1 is placed on attemperator 7 li, inside heat-preserving container, described attemperator 7 li can be filled with nitrogen, avoids pipeline oxidization on the one hand, considers the explosion-proof of system on the other hand.
Described first metal woven hose and last root metal woven hose are provided with inlet 3 and liquid outlet 4, and described metal woven hose 1 one end is connected with the phase line 5 of electrical source of power, and the other end is connected with ground wire 6.Along inlet 3 and liquid outlet 4 direction, the voltage between described phase line 5 and ground wire 6 reduces successively.Specific practice is: woven hose is divided into some regions according to fluid flow direction, such as region 1,2,3 ... .., region allocation principle is in process fluid flow, the surface temperature of woven hose is consistent as far as possible, the temperature of same woven hose, the place that fluid is cold, the temperature difference is large, heat exchange power is high, needs the electrical power that provides also large simultaneously; Vice versa.
Partition method one: be divided into some deciles according to the length of woven hose, the voltage A1 that region 1 provides, B1, the voltage A3 that the voltage A2 that C1 > region 2 provides, B2, C2 > region 3 provides, B3, C3 ...., wait the pipeline of resistance, the size of power is changed by the height adjusting voltage.
Partition method two: be divided into some parts according to the length of woven hose, every part not of uniform size, according to fluid flow direction, the duct length that the duct length < region 3 that the duct length < region 2 that region 1 is distributed is distributed is distributed ... identical voltage is implemented in every region, carrys out the size of Modulating Power according to different resistance sizes.
Claims (4)
1. short circuit electric heater, it is characterized in that, comprise some metal woven hoses (1), described metal woven hose (1) is connected by U-shaped tube connector (2), described first metal woven hose and last root metal woven hose are provided with inlet (3) and liquid outlet (4), described metal woven hose (1) one end is connected with the phase line (5) of electrical source of power, and the other end is connected with ground wire (6).
2. short circuit electric heater according to claim 1, is characterized in that, it is inner that described metal woven hose (1) is placed on attemperator (7).
3. short circuit electric heater according to claim 2, is characterized in that, described attemperator (7) is inner is filled with nitrogen.
4. the short circuit electric heater according to any one of claims 1 to 3, is characterized in that, is divided into some regions along inlet (3) and liquid outlet (4) direction, the descending distribution of tube-surface power density in each region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234144.8A CN104807170A (en) | 2015-05-08 | 2015-05-08 | Short-circuiting electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234144.8A CN104807170A (en) | 2015-05-08 | 2015-05-08 | Short-circuiting electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104807170A true CN104807170A (en) | 2015-07-29 |
Family
ID=53692228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510234144.8A Pending CN104807170A (en) | 2015-05-08 | 2015-05-08 | Short-circuiting electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104807170A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2247269Y (en) * | 1995-11-17 | 1997-02-12 | 天津市兴国科技总公司 | Automatic temp.-controlled heating pipe |
| CN201697311U (en) * | 2010-05-06 | 2011-01-05 | 华能无锡电热器材有限公司 | Short-circuit type electric heating exchanger |
| CN201837074U (en) * | 2010-09-18 | 2011-05-18 | 广东恒基金属制品实业有限公司 | Safety type heating device for electric water heater |
| CN202598860U (en) * | 2012-05-23 | 2012-12-12 | 华能无锡电热器材有限公司 | Constant temperature field fluid electric heater |
| CN104266493A (en) * | 2014-10-11 | 2015-01-07 | 华能无锡电热器材有限公司 | Radiant electric heater with isothermal heat exchange pipe |
| CN204630008U (en) * | 2015-05-08 | 2015-09-09 | 华能无锡电热器材有限公司 | Short circuit electric heater |
-
2015
- 2015-05-08 CN CN201510234144.8A patent/CN104807170A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2247269Y (en) * | 1995-11-17 | 1997-02-12 | 天津市兴国科技总公司 | Automatic temp.-controlled heating pipe |
| CN201697311U (en) * | 2010-05-06 | 2011-01-05 | 华能无锡电热器材有限公司 | Short-circuit type electric heating exchanger |
| CN201837074U (en) * | 2010-09-18 | 2011-05-18 | 广东恒基金属制品实业有限公司 | Safety type heating device for electric water heater |
| CN202598860U (en) * | 2012-05-23 | 2012-12-12 | 华能无锡电热器材有限公司 | Constant temperature field fluid electric heater |
| CN104266493A (en) * | 2014-10-11 | 2015-01-07 | 华能无锡电热器材有限公司 | Radiant electric heater with isothermal heat exchange pipe |
| CN204630008U (en) * | 2015-05-08 | 2015-09-09 | 华能无锡电热器材有限公司 | Short circuit electric heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |
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| RJ01 | Rejection of invention patent application after publication |