CN201373549Y - Novel fluid electric heater - Google Patents
Novel fluid electric heater Download PDFInfo
- Publication number
- CN201373549Y CN201373549Y CN200920037701U CN200920037701U CN201373549Y CN 201373549 Y CN201373549 Y CN 201373549Y CN 200920037701 U CN200920037701 U CN 200920037701U CN 200920037701 U CN200920037701 U CN 200920037701U CN 201373549 Y CN201373549 Y CN 201373549Y
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- CN
- China
- Prior art keywords
- electric heater
- metal hollow
- hollow pipe
- housing
- shell
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a fluid electric heater, in particular to an electric heater. The fluid electric heater comprises support legs provided with a shell of medium inlet and outlet; one end of the shell is enclosed and the other end is connected with a flange which is fixedly connected with a plurality of metal hollow tubes extending into the shell; one end of the metal hollow tube in the shell is enclosed and the other end is provided with lead holes; the metal hollow tube is provided with a shield heating cable with lead terminals extending out of the shell through the lead hole. The utility model has the advantages that: 1) the spring-like shield heating cable is a heating source and the heat emitted can be absorbed by fluid medium of the hollow tube as soon as possible; as the hollow tube has a large diameter (above 40MM), the temperature on the surface of the hollow tube is reduced and the heating efficiency is greatly improved; 2) the heating source is placed in a hollow tube, so the maintenance difficulty is decreased and the replacement period is shortened; and 3) the welding points are reduced, so the whole intensity of the flange is improved for better application on occasions under large compact force.
Description
Technical field
The utility model relates to a kind of electric heater unit, relates in particular to a kind of electric heater for fluid that is applicable to the fluid heating.
Background technology
Circulating electric heater for fluid is a kind of electric heating equipment of international popular.Be used for liquid state, the heating of gaseous medium, intensification, insulation to flowing.When heat medium passes through the electric heater heating chamber under pressure, adopt the thermodynamic fluid principle to take away the huge heat that is produced in the heating work equably, make the heated medium temperature reach user's technological requirement.The version of at present existing circulating electric heater for fluid is that some tubular metal heatings (common name electrothermal tube) are bent to U-shaped. is welded on then on the port sealing flange of fluid heater. and shortcoming (1) is less because of the electrothermal tube diameter; single power can't be done greatly; thereby so the electrothermal tube number that needs will be more. increased number of aperture and the welding capacity on the flange; also increase simultaneously the trouble point. when particularly in fluid adds device, certain pressure being arranged; cause the raising of fault rate. (2) are to change immediately when electrothermal tube uses a period of time to occur damaging; because of electrothermal tube and sealing flange have welded extremely; the sealing flange that must shutdown will be welded with electrothermal tube is pulled down from heater body; by specialized factory; adopt professional equipment to keep in repair, so need long downtime. seriously influence enterprise and produce.
The utility model content
The utility model is at above-mentioned defective, and purpose is to provide a kind of can effectively concentrate heating efficiently to various fluid media (medium)s, changes heating fluid electric heater unit eaily.
The technical solution of the utility model is: the utility model comprises feet, be provided with the housing that medium is imported and exported, the sealing of housing one end, other end adpting flange, be fixedly connected with the many metal hollow pipes that extend in the housing on the flange, the end sealing of metal hollow pipe in housing, the other end is opened fairlead, be provided with the armouring heating cables in the metal hollow pipe, the lead terminal of heating cables stretches out in housing by fairlead.
Described armouring heating cables integral body is shape in the shape of a spiral, fits tightly with the hollow pipe inwall, and shell is that stainless steel material is made, the in-built electrical heated filament, and magnesium oxide sand is filled in the gap.
The metal hollow pipe is offered an end of fairlead and is established end cap, and end cap closely is connected the port of metal hollow pipe, and can dismantle from the metal hollow pipe.
The outside connection one of flange is provided with the protection terminal box of incoming line, and described lead terminal is in the protection terminal box.
Be provided with the medium deflector in the described housing.
The cross section of described armouring heating cables is square.
The utlity model has following advantage: 1) the armouring heating cables of spring-like is a heating source, the heating cables of this spring-like is a high-quality heater element of a kind of long-life, its in-built electrical heated filament is hedged off from the outer world by magnesia, shell is a stainless steel material, so this armouring heating cables has than long service live and higher serviceability temperature, when work this elongated armouring heating cables be that hollow pipe inwall with end sealing sticks together closely, its heat that sends can be absorbed by fluid media (medium) by hollow as soon as possible, because the hollow pipe diameter is that bigger (more than the 40MM) reduced the hollow pipe surface temperature, from the great efficiency of heating surface that improved; 2) described heating source is to be placed in the hollow pipe, when the heating cables in the hollow pipe damages, end cap can be dismantled, and replaces heating cables then, and will not disassemble from flange by whole electrothermal tube, has simplified maintenance difficulty, has reduced the replacement cycle; 3) pad reduces, and has improved the flange integral intensity, can better adapt to the big occasion of impulsive force.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1 is that housing, 2 is armouring heating cables cold junction, 13 ceramic insulators, 14 power supply terminals for feet, 12 for media outlet, 11 for medium import, 10 for lead wire outlet, 9 for terminal box capping, 8 for protection terminal box, 7 for medium deflector, 6 for flange, 5 for armouring heating cables, 4 for metal hollow pipe, 3 among the figure.
Fig. 2 is the heating cables structural representation
The specific embodiment
The utility model comprises feet 11, be provided with the housing 1 of medium import 9, media outlet 10, the sealing of housing 1 one ends, other end adpting flange 4, be fixedly connected with the many metal hollow pipes 2 that extend in the housing 1 on the flange 4, the end sealing of metal hollow pipe 2 in housing 1, the other end is opened lead wire outlet 8, be provided with armouring heating cables 3 in the metal hollow pipe 2, the lead terminal of heating cables 3 stretches out in housing 1 by lead wire outlet 8.Described armouring heating cables 3 integral body are shape in the shape of a spiral, fits tightly with hollow pipe 2 inwalls, and shell 1 is made for stainless steel material, the in-built electrical heated filament, and magnesium oxide sand is filled in the gap.Metal hollow pipe 2 is offered an end of fairlead and is established end cap, and end cap closely is connected the port of metal hollow pipe 2, and can be from 2 dismountings of metal hollow pipe.Flange 4 outside connections one are provided with the protection terminal box 6 of incoming line, and described lead terminal is in the protection terminal box 6.Be provided with medium deflector 5 in the described housing 1, the cross section of described armouring heating cables 3 is square.
The utility model carries out seal welding with the port sealing flange 4 of fluid heater with metal hollow pipe 2, armouring heating cables 3 in metal hollow pipe 2, be connected with power supply, the square heating cables 3 of spring-like closely contacts with metal hollow pipe 2 inwalls, on heating cables, be provided with not heating part of cold junction 12, comprise ceramic insulator 13 and power supply terminal 14, protection terminal box 6 is connected with fluid heater seal flange 4, with terminal box capping 7 assemblings.
The course of work of the present utility model is, the cryogen medium enters its input port under pressure by pipeline at work, by deflector 5 along housing 1 inner specific heat exchange runner, take away the elevated temperature heat energy on the metal hollow pipe 2, the heated medium temperature is raise, further the utility model can be established control device, regulates the electric heater power output automatically according to the temperature sensor signal of delivery outlet, makes the medium temperature of delivery outlet even; When the heating cables overtemperature, cut off heating power supply, avoid adding the hot fluid overtemperature and cause coking, rotten, carbonization, what cause when serious that heating cables gets burns out, and effectively prolongs electric heater service life.
Claims (6)
1, electric heater for fluid, comprise feet, be provided with the housing that medium is imported and exported, the sealing of housing one end, other end adpting flange, it is characterized in that, be fixedly connected with the many metal hollow pipes that extend in the housing on the flange, the end sealing of metal hollow pipe in housing, the other end is opened fairlead, be provided with the armouring heating cables in the metal hollow pipe, the lead terminal of heating cables stretches out in housing by fairlead.
2, electric heater for fluid according to claim 1 is characterized in that, described armouring heating cables integral body is shape in the shape of a spiral, fits tightly with the hollow pipe inwall, and shell is that stainless steel material is made, the in-built electrical heated filament, and magnesium oxide sand is filled in the gap.
3, electric heater for fluid according to claim 1 is characterized in that, the metal hollow pipe is offered an end of fairlead and established end cap, and end cap closely is connected the port of metal hollow pipe, and can dismantle from the metal hollow pipe.
4, electric heater for fluid according to claim 1 is characterized in that, flange outwards connects a protection terminal box that is provided with incoming line, and described lead terminal is in the protection terminal box.
5, electric heater for fluid according to claim 1 is characterized in that, is provided with the medium deflector in the described housing.
6, electric heater for fluid according to claim 1 is characterized in that, the cross section of described armouring heating cables is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920037701U CN201373549Y (en) | 2009-01-20 | 2009-01-20 | Novel fluid electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920037701U CN201373549Y (en) | 2009-01-20 | 2009-01-20 | Novel fluid electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373549Y true CN201373549Y (en) | 2009-12-30 |
Family
ID=41499635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920037701U Expired - Fee Related CN201373549Y (en) | 2009-01-20 | 2009-01-20 | Novel fluid electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373549Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423858A (en) * | 2012-05-24 | 2013-12-04 | 中国核动力研究设计院 | High-power electric-heating heat exchanger |
| CN106556137A (en) * | 2016-10-31 | 2017-04-05 | 江阴市国豪电热电器制造有限公司 | A kind of electric gas heater of homogeneous heating |
-
2009
- 2009-01-20 CN CN200920037701U patent/CN201373549Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423858A (en) * | 2012-05-24 | 2013-12-04 | 中国核动力研究设计院 | High-power electric-heating heat exchanger |
| CN103423858B (en) * | 2012-05-24 | 2016-08-03 | 中国核动力研究设计院 | A kind of large power, electrically heating heat exchanger |
| CN106556137A (en) * | 2016-10-31 | 2017-04-05 | 江阴市国豪电热电器制造有限公司 | A kind of electric gas heater of homogeneous heating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20110120 |