CN101832642A - Electric gas heater - Google Patents
Electric gas heater Download PDFInfo
- Publication number
- CN101832642A CN101832642A CN 201010140906 CN201010140906A CN101832642A CN 101832642 A CN101832642 A CN 101832642A CN 201010140906 CN201010140906 CN 201010140906 CN 201010140906 A CN201010140906 A CN 201010140906A CN 101832642 A CN101832642 A CN 101832642A
- Authority
- CN
- China
- Prior art keywords
- heater
- gas heater
- electric gas
- bearing shell
- electric
- Prior art date
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 230000035515 penetration Effects 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims description 12
- 239000012774 insulation material Substances 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- 210000002445 nipple Anatomy 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- FQTHZXJOWONAEP-UHFFFAOYSA-N [Fe].[Ni].[Cd] Chemical compound [Fe].[Ni].[Cd] FQTHZXJOWONAEP-UHFFFAOYSA-N 0.000 claims description 3
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000011214 refractory ceramic Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 36
- 238000005538 encapsulation Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Resistance Heating (AREA)
Abstract
The invention relates to an electric gas heater, which comprises a bearing shell, an inlet cavity, an outlet cavity, a heating element, a power access section and an electrical penetration unit, wherein the inlet cavity is arranged at one end in the bearing shell and connected with an inlet nozzle arranged on the bearing shell; the outlet cavity is arranged at the other end in the bearing shell and connected with an outlet nozzle arranged on the bearing shell; the heating element is connected between the inlet cavity and the outlet cavity and used for heating the gas which enters the inlet cavity from the inlet nozzle and passes through the heating element; the power access section is arranged on the inlet cavity side in the bearing shell; and the electrical penetration unit is led out from the power access section, one end of the electrical penetration unit is connected with the heating element, and the other end of the electrical penetration unit is connected with an external power supply. The electric gas heater can improve the tightness, electrical safety and operational reliability of the gas of the electric gas heater.
Description
Technical field
The present invention relates to closed thermodynamic system system circulating technology field, relate in particular to a kind of gases at high pressure convection type electric gas heater.
Background technology
Industrial furnace generally is used for heating product and workpiece, and what heat exchanger was realized is between two kinds of flow medias or the heat transmission between a kind of flow media and thermal source.Industrial furnace and heat exchanger are widely used in industrial production/test, the scientific experiment/test, as metallurgy, machinery, the energy, power, industry such as electric.In closed thermodynamic system system circulating research and test, as burner in nuclear reactor, station boiler, the gas/gas turbine system etc., because the problems such as economy, Modulatory character and security of actual thermal source usually need to adopt electric heat source to simulate actual thermal source.This class electric heater also needs to take into account the requirement of institute's simulation system except satisfying general industry electric furnace and heat exchanger specification and requirement, as requirements such as sealing, security, operational reliabilitys.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: the gas tightness, electrical security and the operational reliability that improve electric gas heater.
(2) technical scheme
For achieving the above object, the present invention adopts following technical scheme.
A kind of electric gas heater, this electric gas heater comprises: pressure-bearing shell; Inlet cavity places the end in the described pressure-bearing shell, links to each other with inlet nipple on the described pressure-bearing shell; Outlet cavity places the other end in the described pressure-bearing shell, links to each other with outlet ozzle on the described pressure-bearing shell; Heater is connected between described inlet cavity and the described outlet cavity, is used to heat from described inlet nipple enter described inlet cavity and pass the gas of heater; Draw the electricity district, be positioned at described pressure-bearing shell inlet cavity one side; Electrical penetration is drawn from the described electricity district of drawing, and an end links to each other with described heater, and an end connects external power source.
Wherein, this electric gas heater also comprises: insulation construction is arranged between described heater and the described pressure-bearing shell.
Wherein, this gas heater also comprises: insulating interlayer, its position is in described inlet cavity and described drawing between the electricity district.
Wherein, described heater draws electrode by a plurality of identical modular assemblies and corresponding heater and assembles, described a plurality of modular assembly is connected in parallel on gas circuit, be electrically connected and adopt the arbitrary topology connected mode, described modular assembly comprises: tubular heating element, some described tubular heating elements are arranged in the sleeve in parallel with each other, and pass the insulating part of spaced set in described sleeve, and two ends link to each other with electrode.
Wherein, described heater draws electrode and links to each other with described electrical penetration.
Wherein, the power bracket of single described modular assembly is 1.0KW-100KW.
Wherein, tubular heating element is straight tube shape or helically coiled.
Wherein, described tubular heating element is cadmium-nickel alloy, iron cadmium nickel or Aludirome material.
Wherein, described insulation construction comprises: be filled in the insulation material of the annular space between pressure vessel inwall and the heat sleeve, described insulation material supports by the conically shaped that is welded in described pressure vessel inwall.
Wherein, described insulation material adopts refractory ceramic fibre, and its packing density scope is 160kg/m
3-400kg/m
3
(3) beneficial effect
Sealing, electrical security, electromagnetic wave shielding, the high-current leading that electric gas heater of the present invention can solve gas effectively such as goes out at relevant issues.Concrete advantage is:
1, the modular assembly structure makes this electric gas heater be convenient to maintenance and part replacement;
2, the independently electric encapsulation of modular assembly has reduced the possibility of electric leakage;
3, in the assembly heating element heater be connected in parallel and short circuit phenomenon has been avoided in the electric encapsulation of assembly;
4, the design of the electric encapsulation of modular assembly and heater bidirectional current avoids electromagnetic interference to take place;
5, the multiple heat shielding makes the thermal efficiency of this electric gas heater be not less than 95%;
6, reasonably the space is arranged, can keep drawing the influence that the electricity district is not subjected to the import high temperature gas flow.
Description of drawings
Fig. 1 is the electric gas heater structure chart according to one embodiment of the present invention;
Fig. 2 is the modular assembly internal structure schematic diagram according to the electric gas heater of one embodiment of the present invention;
Fig. 3 is the insulation material support schematic diagram according to the electric gas heater of one embodiment of the present invention.
The specific embodiment
The electric gas heater that the present invention proposes is described in detail as follows in conjunction with the accompanying drawings and embodiments.
Electric gas heater of the present invention is a gases at high pressure convection type resistor-type gas electrical heat exchanger, and it has the feature of industrial furnace and heat exchanger.Attainable power bracket from 1.0MW to 10MW between.As shown in Figure 1, this electric body heater comprises: pressure-bearing shell 1, insulation construction 5, heater 4, electrical penetration 11, draw compositions such as electricity district 12 and gas turnover ozzle, modes of emplacement can be vertical or horizontal, as shown in Figure 1, the electric gas heater of present embodiment is vertical is arranged on the gas flow direction (X).
That heater 4 has is anticreep, the intrinsic characteristic of anti-short circuit and electromagnetic shielding.As shown in Figure 2, heater 4 draws electrode 8 by a plurality of identical modular assemblies 6 and corresponding heater and assembles, and heater draws electrode 8 and links to each other with electrical penetration 11, and a plurality of modular assemblies 6 are connected in parallel on gas circuit; On being electrically connected, according to the power requirement string and become different topological structures.The power bracket of single component is from 1.0KW-100KW, and each modular assembly 6 is complete gas electric heating units, has the relative independentability of electric, heat exchange and air-flow.Modular assembly 6 comprises: tubular heating element 13, some tubular heating elements 13 its two ends are passed the insulating part of uniformly-spaced arranging 14 and are welded on the electrode 16, being provided for of insulating part 14 prevents the contacting of back and sleeve 15 of expanding because tubular heating element 13 high temperature roll off the production line, electric leakage appears, make modular assembly 6 have anti-creeping characteristic, spacing between the insulating part 14 is decided according to the expansion situation under the operating temperature, electrical connection topology mode according to electric heater inside, partial electrode 16 with draw electrode 8 and link to each other, remaining is that modular assembly connects by the mode of welding or be threaded to each other, tubular heating element 13 is straight tube shape or helically coiled, material is decided according to operating condition, as cadmium-nickel alloy, iron cadmium nickel or siderochrome aluminum material.Electric encapsulation in the modular assembly 6 has prevented the assembly electric leakage effectively.The design of heater 4 has the characteristic of dual anti-short circuit, and at first, the connection of tubular heating element 13 has the intrinsic characteristic of anti-short circuit in the modular assembly 6; Secondly, the electric encapsulation of modular assembly 6 can stop the short circuit of inter-module effectively.The design of heater 4 has dual electromagnetic shielding characteristic, and the sleeve 15 of modular assembly 6 has the dual-use function of heat shielding and electromagnetic shielding, heater 4 inner module formula assemblies 6 be arranged as two-way circuit, avoid taking place electromagnetic interference again further.
Above embodiment only is used to illustrate the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. electric gas heater, this electric gas heater comprises:
Pressure-bearing shell (1);
Inlet cavity (7) places the end in the described pressure-bearing shell (1), links to each other with inlet nipple (9) on the described pressure-bearing shell (1);
Outlet cavity (2) places the other end in the described pressure-bearing shell (1), links to each other with outlet ozzle (3) on the described pressure-bearing shell (1);
Heater (4) is connected between described inlet cavity (7) and the described outlet cavity (2), is used for heating and enters described inlet cavity (7) and pass the gas of heater (4) from described inlet nipple (9);
Draw electricity district (12), be positioned at described pressure-bearing shell (1) inlet cavity (7) one sides;
Electrical penetration (11) is drawn from the described electricity district (12) of drawing, and an end links to each other with described heater (4), and an end connects external power source.
2. electric gas heater as claimed in claim 1 is characterized in that, this electric gas heater also comprises:
Insulation construction (5) is arranged between described heater (4) and the described pressure-bearing shell (1).
3. electric gas heater as claimed in claim 1 is characterized in that, this gas heater also comprises:
Insulating interlayer (10), its position are positioned at described inlet cavity (7) and described drawing between the electricity district (12).
4. electric gas heater as claimed in claim 1, it is characterized in that, described heater (4) draws electrode (8) by a plurality of identical modular assemblies (6) and corresponding heater and assembles, described a plurality of modular assembly (6) is connected in parallel on gas circuit, be electrically connected and adopt the arbitrary topology connected mode, described modular assembly (6) comprising: tubular heating element (13), some described tubular heating elements (13) are arranged in the sleeve (15) in parallel with each other, and pass the insulating part (14) of spaced set in described sleeve (15), two ends link to each other with electrode (16).
5. electric gas heater as claimed in claim 4 is characterized in that, described heater draws electrode (8) and links to each other with described electrical penetration (11).
6. electric gas heater as claimed in claim 5 is characterized in that, the power bracket of single described modular assembly (6) is 1.0KW-100KW.
7. electric gas heater as claimed in claim 5 is characterized in that, tubular heating element (13) is straight tube shape or helically coiled.
8. electric gas heater as claimed in claim 7 is characterized in that, described tubular heating element (13) is cadmium-nickel alloy, iron cadmium nickel or Aludirome material.
9. electric gas heater as claimed in claim 1, it is characterized in that, described insulation construction (5) comprising: be filled in the insulation material (18) of the annular space between pressure vessel (19) inwall and the heat sleeve (20), described insulation material (18) supports by the conically shaped (17) that is welded in described pressure vessel (19) inwall.
10. electric gas heater as claimed in claim 9 is characterized in that, described insulation material (18) adopts refractory ceramic fibre, and its packing density scope is 160kg/m
3-400kg/m
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140906 CN101832642A (en) | 2010-04-02 | 2010-04-02 | Electric gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140906 CN101832642A (en) | 2010-04-02 | 2010-04-02 | Electric gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101832642A true CN101832642A (en) | 2010-09-15 |
Family
ID=42716801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010140906 Pending CN101832642A (en) | 2010-04-02 | 2010-04-02 | Electric gas heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832642A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142462A (en) * | 2018-06-22 | 2019-01-04 | 思贝科斯(北京)科技有限公司 | Conducting probe and its manufacturing method |
| CN113432295A (en) * | 2021-06-09 | 2021-09-24 | 北京航空航天大学 | Spiral high-flow ultrahigh-temperature air electric heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079186A1 (en) * | 1999-06-21 | 2000-12-28 | Powrmatic Limited | A heater unit |
| CN2518031Y (en) * | 2001-12-12 | 2002-10-23 | 四川省农业机械研究设计院 | Special air heater for nitrogen maker |
| WO2003002920A1 (en) * | 2001-06-27 | 2003-01-09 | Valeo Climatisation | Heat exchanger, especially for an air conditioning device in a motor vehicle |
| CN1544854A (en) * | 2003-11-18 | 2004-11-10 | 清华大学 | Electric heater for high temperature high pressure flowing gas |
| CN2901149Y (en) * | 2006-05-19 | 2007-05-16 | 镇江裕太防爆电加热器有限公司 | Energy saving type anti-explosion electric heater |
| CN101017024A (en) * | 2007-03-12 | 2007-08-15 | 河北工业大学 | Air heater |
-
2010
- 2010-04-02 CN CN 201010140906 patent/CN101832642A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079186A1 (en) * | 1999-06-21 | 2000-12-28 | Powrmatic Limited | A heater unit |
| WO2003002920A1 (en) * | 2001-06-27 | 2003-01-09 | Valeo Climatisation | Heat exchanger, especially for an air conditioning device in a motor vehicle |
| CN2518031Y (en) * | 2001-12-12 | 2002-10-23 | 四川省农业机械研究设计院 | Special air heater for nitrogen maker |
| CN1544854A (en) * | 2003-11-18 | 2004-11-10 | 清华大学 | Electric heater for high temperature high pressure flowing gas |
| CN2901149Y (en) * | 2006-05-19 | 2007-05-16 | 镇江裕太防爆电加热器有限公司 | Energy saving type anti-explosion electric heater |
| CN101017024A (en) * | 2007-03-12 | 2007-08-15 | 河北工业大学 | Air heater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142462A (en) * | 2018-06-22 | 2019-01-04 | 思贝科斯(北京)科技有限公司 | Conducting probe and its manufacturing method |
| CN113432295A (en) * | 2021-06-09 | 2021-09-24 | 北京航空航天大学 | Spiral high-flow ultrahigh-temperature air electric heater |
| CN113432295B (en) * | 2021-06-09 | 2022-09-23 | 北京航空航天大学 | Spiral high-flow ultrahigh-temperature air electric heater |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100915 |