CN206865764U - The heat-insulated termination of electric heater - Google Patents
The heat-insulated termination of electric heater Download PDFInfo
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- CN206865764U CN206865764U CN201720779884.4U CN201720779884U CN206865764U CN 206865764 U CN206865764 U CN 206865764U CN 201720779884 U CN201720779884 U CN 201720779884U CN 206865764 U CN206865764 U CN 206865764U
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Abstract
The utility model provides a kind of heat-insulated termination of electric heater, including reaction kettle barrel, and is arranged on the heating chamber of the reactor cylinder body bottom；Some electric heater units are provided with the heating chamber, each electric heater unit includes multigroup electric heating tube being arranged in parallel, with a termination being arranged on outside the heating chamber, location-plate is provided with the termination, the terminals of each electric heating tube extend to the outside of heating chamber and with the location-plate bolt connection, and the terminals of each electric heating tube are connected with each other by high temperature wire and form two connector lugs；Terminal box, and two nickel wires are additionally provided with the termination, and for fixing the supporting plate of the nickel wire, one end of the nickel wire is connected with the connector lug, the other end is connected through the supporting plate with the power line in terminal box.The utility model reduces the temperature in wire connection cavity, and the work that electric heater device can be reliable and stable can be ensured when reactor barrel temperature is more than 400 DEG C.
Description
Technical field
It the utility model is related to chemical reaction kettle technical field, and in particular to a kind of heat-insulated termination of electric heater.
Background technology
Chemical reaction kettle electric heater device, using widely in the production of chemical industry, according to the characteristic of technique, meet
The control of temperature in production process.Heater assembly generally comprises heater body, temperature element, heat-insulation and heat-preservation and Electric Appliance Cabinet；
Heater body includes heating element heater, support component etc. again；Electrothermal tube leads to wire connection cavity, and electrothermal tube wiring uses high temperature flexible cable
Connecting copper bar, eventually form two terminal studs of 380V wiring.
Reactor barrel temperature need to up to 400 DEG C and its more than, then heater body temperature then requires higher, existingization
Though there is a certain distance (200mm) at the wire connection cavity wiring of work reactor with thermal insulation layer, heat wave connects usually through gap is incoming
Line chamber, cause wiring cavity temperature too high, the loose contact of copper bar high-temperature oxydation, electrothermal tube terminals electric current be too high burn etc. it is existing
As, while heat generating component heat transfer plate occurs melting and metaboly.
Utility model content
For in the prior art the defects of, the utility model provides a kind of heat-insulated termination of electric heater, is connect with reducing
Temperature in line chamber, prevent the accidents such as wiring fusing from occurring, electrical heating can be ensured when reactor barrel temperature is more than 400 DEG C
The reliable and stable work of device device energy.
The heat-insulated termination of a kind of electric heater provided by the utility model, including reaction kettle barrel, and to be arranged on this anti-
Answer the heating chamber of kettle barrel bottom；The outer wall of the heating chamber is arranged with heat transfer plate, and the periphery of the heat transfer plate is provided with insulation
Layer；Some electric heater units are provided with the heating chamber, each electric heater unit adds including multigroup electricity being arranged in parallel
Heat pipe, and a termination being arranged on outside the heating chamber, location-plate, each electric heating tube are provided with the termination
Terminals extend to heating chamber outside and with the location-plate bolt connection, and the terminals of each electric heating tube pass through high temperature
Wire is connected with each other and forms two connector lugs；Terminal box, and two nickel wires are additionally provided with the termination, and are used for
The supporting plate of the fixed nickel wire, one end of the nickel wire are connected with the connector lug, and the other end is through the supporting plate with connecing
Power line connection in line box.
In the utility model, heating chamber is arranged on the bottom of reaction kettle barrel, and the heat transfer plate for being arranged on heating chamber periphery is used
In transferring heat to reaction kettle barrel.The terminals of the electric heating tube of traditional chemical industry reactor directly pass through copper bar and power line
Connection, this connected mode make it that the length of wire connection cavity is shorter, when heat wave is passed in wire connection cavity by gap, frequently can lead to
Wiring cavity temperature drastically raises, and ultimately results in copper bar high-temperature oxydation, too high and burn so as to electric heating tube terminals electric current occur
The phenomenon ruined；And the terminals of electric heating tube are fixed on location-plate by the utility model, and by high temperature wire and nickel wire with
Power line connects, and the setting of nickel wire adds the length of wire connection cavity, alleviates the hot environment in wire connection cavity, and use high temperature
Electric heating tube is connected with each other and ultimately forms two connector lugs by wire, can be supplied in the case of without using copper bar for electric heating tube
Electricity, avoid copper bar high-temperature oxydation loose contact the occurrence of；In addition, the fusing point of nickel is 1453 DEG C, general temperature in use
Less than 1200 DEG C, the high temperature that can be well adapted in wire connection cavity.As can be seen here, electric heater provided by the utility model is heat-insulated
Termination, the length of wire connection cavity is extended, be easy to the diffusion of high temperature in wire connection cavity, reduce the temperature in wire connection cavity, significantly
Reduce the incidence of the accidents such as terminal box internal wiring fusing.
Preferably, the material of the heat transfer plate is cast iron.The raw material of the heat transfer plate of traditional chemical reaction kettle are using casting
Copper, and only 800 DEG C of cast copper fusing point, 450 DEG C of operating temperature, overtemperature oxidation cause to burn down, and now using cast iron, cast iron fusing point is 1600
DEG C, 800 DEG C of operating temperature, iron machine intensity is higher than cast copper, there is enough clamping forces；The heat conductivility of cast iron is slightly worse than cast copper,
Electric heating tube thermic load can be suitably reduced, extends the electric heater life-span.
Preferably, the distance between the supporting plate and heat-insulation layer outer wall are 700mm.By supporting plate and heat-insulation layer outer wall it
Between distance be arranged to 700mm, can be while the temperature in wire connection cavity be reduced, the cantilever that prevents termination from stretching out
It is long, ensure that the bonding strength of chemical reaction kettle and termination is reliable.
Preferably, the thick thermal insulation boards of 5mm are provided with one end of the remotely located plate of the supporting plate, the nickel wire passes through institute
Supporting plate and thermal insulation board is stated to be connected with the power line in terminal box.By setting up thermal insulation board, the high temperature in wire connection cavity can be prevented
Reach in terminal box, further ensure the wiring safety in terminal box.
Preferably, the periphery of the nickel wire is arranged with insulation ceramic ring, to make insulation processing to nickel wire, prevent short circuit or
The situation of electric shock.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art.In all of the figs, it is similar
Element or part are typically identified by similar reference.In accompanying drawing, each element or part might not be according to the ratios of reality
Draw.
Fig. 1 is the structural representation of the heat-insulated termination of electric heater described in the utility model；
Fig. 2 is the A-A sectional views shown in Fig. 1.
Reference：
1- reacts kettle barrel；2- heating chambers；3- heat transfer plates；4- heat-insulation layers；5- electric heating tubes；6- terminations；7- high temperature
Wire；8- traditional wired chambers；9- improves wire connection cavity；
601- location-plates；602- terminal boxes；603- nickel wires；604- supporting plates；605- thermal insulation boards.
Embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only
For clearly illustrating the technical solution of the utility model, therefore example is only used as, and this practicality can not be limited with this
New protection domain.
As shown in Figure 1-2, the heat-insulated termination of a kind of electric heater that the embodiment of the utility model one provides, including reaction
Kettle barrel 1, and it is arranged on the heating chamber 2 of the bottom of reaction kettle barrel 1；The outer wall of the heating chamber 2 is arranged with heat transfer plate 3, institute
The periphery for stating heat transfer plate 3 is provided with heat-insulation layer 4；Some electric heater units, each electric heater unit are provided with the heating chamber 2
Including four groups of electric heating tubes being arranged in parallel 5, and a termination 6 being arranged on outside the heating chamber 2, the termination
Location-plate 601 is provided with 6, the terminals of each electric heating tube 5 extend to the outside of heating chamber 2 and led to the location-plate 601
High temperature resistant bolt connection is crossed, and the terminals of each electric heating tube 5 are connected with each other by high temperature wire 7 and form two connector lugs
(not shown)；Terminal box 602, and two nickel wires 603 are additionally provided with the termination 6, and for described in fixation
The supporting plate 604 of nickel wire 603, one end of the nickel wire 603 are connected with the connector lug, and the other end passes through the supporting plate 604
Connect respectively with two phase lines for 380V AC voltages in into terminal box 602.
The terminals of the electric heating tube of traditional chemical industry reactor are directly connected by copper bar with power line, this connected mode
So that the length of wire connection cavity is shorter, as shown in figure 1, the distance between the end of traditional wired chamber 8 and the outer wall of heat-insulation layer 4 are
200mm, then when heat wave is passed in traditional wired chamber 8 by gap, it frequently can lead to temperature in traditional wired chamber 8 and drastically rise
Height, ultimately result in copper bar high-temperature oxydation, so as to occur that the terminals electric current of electric heating tube 5 is too high and the phenomenon burnt；And this practicality
The new terminals by electric heating tube 5 are fixed on location-plate 601, and pass through high temperature wire 7 and nickel wire 603 and terminal box 602
Two interior phase lines connect, and wherein the distance between location-plate 601 and supporting plate 604 as improve the length of wire connection cavity 9, such as Fig. 1
Shown, the end (i.e. the position of supporting plate 604) and the distance between outer wall of heat-insulation layer 4 for improving wire connection cavity 9 are 700mm, then when
When heat wave is improved in wire connection cavity 9 by the way that gap is incoming, the perfect heat-dissipating of wire connection cavity 9, Ke Yihuan are improved because length is increased
Its internal hot environment is solved, and electric heating tube 5 is connected with each other using high temperature wire 7 and ultimately forms two connector lugs, can
With in the case of without using copper bar be electric heating tube 5 power, avoid copper bar high-temperature oxydation loose contact the occurrence of；
In addition, the fusing point of nickel is 1453 DEG C, below general 1200 DEG C of temperature in use so that nickel wire 603 can be well adapted for improvement and connect
High temperature in line chamber 9.As can be seen here, the heat-insulated termination of electric heater that the present embodiment provides, the increasing of the length of wire connection cavity 9 is improved
Add, beneficial to the diffusion for improving high temperature in wire connection cavity 9, reduce the temperature improved in wire connection cavity 9, greatly reduce terminal box 602
The probability of happening of the accidents such as internal wiring fusing.
The raw material of the heat transfer plate 3 of traditional chemical reaction kettle use cast copper, and only 800 DEG C of cast copper fusing point, operating temperature
450 DEG C, overtemperature oxidation causes to burn down, and therefore, in the present embodiment, the material selection cast iron of heat transfer plate 3, cast iron fusing point is 1600
DEG C, 800 DEG C of operating temperature, iron machine intensity is higher than cast copper, there is enough clamping forces；The heat conductivility of cast iron is slightly worse than cast copper,
The thermic load of electric heating tube 5 can be suitably reduced, extends the electric heater life-span.
Reached to further prevent from improving the high temperature in wire connection cavity 9 in terminal box 602, ensure connecing in terminal box 602
Line safety, the thick thermal insulation boards 605 of 5mm are provided with one end of the remotely located plate 601 of the supporting plate 604, and the nickel wire 603 is worn
The supporting plate 604 and thermal insulation board 605 is crossed with two phase lines in terminal box 602 to connect.
Further, insulation ceramic ring (not shown) is arranged with the periphery of the nickel wire 603, to make to nickel wire 603
Insulation processing, prevent short circuit or situation about getting an electric shock.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in previous embodiment, either to which part or all technical characteristic
Carry out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model embodiment
The scope of technical scheme, it all should cover among claim of the present utility model and the scope of specification.
Claims (5)
- A kind of 1. heat-insulated termination of electric heater, it is characterised in that：Including reacting kettle barrel, and it is arranged on the heating chamber of the reactor cylinder body bottom；The outer wall of the heating chamber is arranged with heat transfer plate, and the periphery of the heat transfer plate is provided with heat-insulation layer；Some electric heater units are provided with the heating chamber, each electric heater unit adds including multigroup electricity being arranged in parallel Heat pipe, and a termination being arranged on outside the heating chamber, location-plate, each electric heating tube are provided with the termination Terminals extend to heating chamber outside and with the location-plate bolt connection, and the terminals of each electric heating tube pass through high temperature Wire is connected with each other and forms two connector lugs；Terminal box, and two nickel wires are additionally provided with the termination, and for fixing the supporting plate of the nickel wire, it is described One end of nickel wire is connected with the connector lug, and the other end is connected through the supporting plate with the power line in terminal box.
- 2. the heat-insulated termination of electric heater according to claim 1, it is characterised in that：The material of the heat transfer plate is cast iron.
- 3. the heat-insulated termination of electric heater according to claim 1, it is characterised in that：The distance between the supporting plate and heat-insulation layer outer wall are 700mm.
- 4. the heat-insulated termination of electric heater according to claim 3, it is characterised in that：Be provided with the thick thermal insulation boards of 5mm in one end of the remotely located plate of the supporting plate, the nickel wire through the supporting plate and Thermal insulation board is connected with the power line in terminal box.
- 5. the heat-insulated termination of electric heater according to claim 4, it is characterised in that：The periphery of the nickel wire is arranged with insulation ceramic ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720779884.4U CN206865764U (en) | 2017-06-30 | 2017-06-30 | The heat-insulated termination of electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720779884.4U CN206865764U (en) | 2017-06-30 | 2017-06-30 | The heat-insulated termination of electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206865764U true CN206865764U (en) | 2018-01-09 |
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ID=60828637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720779884.4U Active CN206865764U (en) | 2017-06-30 | 2017-06-30 | The heat-insulated termination of electric heater |
Country Status (1)
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| CN (1) | CN206865764U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108738169A (en) * | 2018-05-04 | 2018-11-02 | 江苏核电有限公司 | A kind of nuclear power station Spent Radioactive gas processing system electric heater heat-proof device |
-
2017
- 2017-06-30 CN CN201720779884.4U patent/CN206865764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108738169A (en) * | 2018-05-04 | 2018-11-02 | 江苏核电有限公司 | A kind of nuclear power station Spent Radioactive gas processing system electric heater heat-proof device |
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