CN203704672U - Combined directly-heating resistance furnace - Google Patents

Combined directly-heating resistance furnace Download PDF

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Publication number
CN203704672U
CN203704672U CN201420070281.3U CN201420070281U CN203704672U CN 203704672 U CN203704672 U CN 203704672U CN 201420070281 U CN201420070281 U CN 201420070281U CN 203704672 U CN203704672 U CN 203704672U
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China
Prior art keywords
resistance
heat
medium
unit
heating
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Expired - Lifetime
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CN201420070281.3U
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Chinese (zh)
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朱建新
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Individual
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Individual
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Abstract

A combined directly-heating resistance furnace is composed of a heating unit set and a heat exchange system. The heating unit set is composed of a plurality of resistance heating units. Each resistance heating unit is composed of a unit shell, a resistance heating device assembly, an insulating heat conduction medium, insulating sleeves, a medium output opening, a medium input opening and a heat preservation layer. Each resistance heating device assembly is composed of a metal wire, a support and a structural piece for fixing the electric conduction heating metal wire. The heat exchange system is composed of multiple sets of medium circulating pumps, a medium heat exchanger and a thermal cycle pipeline. The resistance heating units have interchangeability, the working voltages and the heating power of the combined directly-heating resistance furnace can be changed by changing the wiring methods between the resistance heating units; the resistance heating device assemblies are soaked in the insulating heat conduction medium so that the insulating degree of the resistance heating device assemblies can be increased, the size of the resistance heating units can be reduced, and device installation places can be saved; the unit shells are formed by normal pressure vessels so that the combined directly-heating resistance furnace can reliably work.

Description

Combined vertical thermal resistance stove
Technical field
The present invention relates to a kind of Combined vertical thermal resistance stove, relate in particular to and a kind of supplied with by 2.5kv~220kv electric pressure power supply, be immersed in and be heated by resistive that device heats in insulated heat-conducting medium, and complete the heat energy output device of heat exchange by heat exchanger.
Background technology
In the past in the electric heating transformation applications that does not need accumulation of heat, conventionally adopt resistance heater feedwater heating under water, the directly device of hot water output, in the time that operating voltage is greater than 0.4 kilovoltage grade power supply, can increase the leakage current of resistance heater to water, when operating voltage reaches 2.5kv resistance heater under water when above, due to leakage current is excessive breakdown, and resistance heater cannot be worked.Therefore, need to design the directly-heated resistive heating device that a kind of new structure adapts to 2.5kv above, directly-heated resistive heating device is operated in each electric pressure of 2.5kv~220kv with security and stability, meet consumers' demand.
Summary of the invention
The present invention is directed to the problem of above-mentioned prior art existence and a kind of Combined vertical thermal resistance stove is provided, to adopt in parallel, series connection various combination by several resistance heated unit according to operating voltage and demanded power output, form three groups of heating unit groups that structure is identical, completed and draw three terminals after star or angle scheme and access current supply circuit work by gauge tap, the heat energy that resistance heated unit produces completes the device of heat energy output by heat-exchange system.
Technical scheme of the present invention is as follows:
A kind of Combined vertical thermal resistance stove is characterized in that: it is to be made up of heating unit group and heat-exchange system; Heating unit group is to adopt in parallel, series connection various combination by several resistance heated unit according to operating voltage and demanded power output; form three groups of heating unit groups that structure is identical, then completed and draw three terminals after star or angle scheme and access current supply circuit work by gauge tap; Resistance heated unit is made up of unit housings, resistance heater assembly, insulated heat-conducting medium, insulating sleeve, medium delivery outlet, medium input port and heat-insulation layer; Resistance heater assembly is that upper end connects two insulating sleeves as wiring exit, and metal wire rod and support, the structural member fixing conductive exothermal metal wire rod, that make conductive exothermal metal wire rod tolerate specified power-frequency voltage insulating capacity to having between unit housings by can stablize conductive exothermal in insulated heat-conducting medium that are immersed in insulated heat-conducting medium form; Heat-exchange system is made up of some groups of medium circulation pumps, media heat exchanger and thermal cycle pipeline.
Described unit housings is designed to the various solid containers that meet splendid attire insulated heat-conducting medium and resistance heater assembly needs.
Metal wire rod in described resistance heater assembly, makes with stretchings such as metallic copper, aluminium, iron, chromium, nickel and alloys thereof.
Structural member in described resistance heater assembly, with making such as insulating ceramics, macromolecular material, glass fibres.
Described insulated heat-conducting medium is by meeting the rated operational voltage insulating requirements applying on resistance heater assembly, and the liquid that the heat energy stable circulation producing on resistance heater assembly can be derived forms.As insulating oil, conduction oil, pure water etc.
Described media heat exchanger is board-like or shell-and-tube heat exchanger, the heat energy that resistance heater assembly discharges heats up the insulated heat-conducting medium in resistance heated unit, the unit heat release of each resistance heated is connected in parallel on thermal cycle pipeline, high-temperature medium under the driving of medium circulation pump in resistance heated unit discharges heat energy through output channel inflow heat exchanger, completes cryogenic media after heat exchange and sends resistance heated unit back to through reflux line and complete heat release circuit cycle.According to the exportable hot water of user's request heat exchanger, steam, hot-air.
Advantage of the present invention is as follows:
Each resistance heated unit in Combined vertical thermal resistance stove of the present invention has interchangeability, can change operating voltage and the heating power of Combined vertical thermal resistance stove by the mode of connection between change resistance heated unit; Resistance heater assembly is immersed in the class of insulation that has improved resistance heater assembly in insulated heat-conducting medium, has reduced the volume of resistance heated unit, has saved equipment fabricating yard; While doing insulated heat-conducting medium with high temperature heat conductive oil, when heat-exchange temperature reaches 100 DEG C to 200 DEG C, insulated heat-conducting medium also can not be vaporized, and just can make Combined vertical thermal resistance stove work reliably with non-pressure vessel production unit housing.
Brief description of the drawings
Fig. 1 is Combined vertical thermal resistance stove resistance heated cellular construction schematic diagram of the present invention.
Fig. 2 is Combined vertical thermal resistance stove heating unit group structural representation of the present invention.
Fig. 3 is the schematic diagram of the heating unit group formation star-star connection that three groups of structures of Combined vertical thermal resistance stove of the present invention are identical.
Fig. 4 is Combined vertical thermal resistance stove heat-exchange system structure chart of the present invention.
In figure, 1, resistance heater assembly, 2, unit housings, 3, metal wire rod, 4, insulated heat-conducting medium, 5, heat-insulation layer, 6, insulating sleeve, 7, medium input port, 8, medium delivery outlet, 9, structural member, 10, ventilation cover plate, 11, media heat exchanger, 12, medium circulation pump, 13, power outlet, 14, neutral lead, 15, high-temperature medium pipeline, 16, cryogenic media pipeline, 17, resistance heated unit, 18, three-phase working power interface, 19, water at low temperature input interface, 20, high-temperature water output interface.
Detailed description of the invention
Describe the present invention in detail below in conjunction with drawings and Examples.
Embodiment 1
Combined vertical thermal resistance stove resistance heated cellular construction of the present invention as shown in Figure 1, make resistance heater assembly 1 firm stable of having assembled with structural member 9 fixing metal wire rods 3, after tipping insulating sleeve 6 in the two ends of metal wire rod 3 becomes one with resistance heater assembly 1, in loading location housing 2, unit housings 2 outer surfaces are installed heat-insulation layer 5.
Combined vertical thermal resistance stove heating unit group structure of the present invention as shown in Figure 2, adopts two and four serial connection lines to form heating unit group, a termination power outlet 13, another termination neutral lead 14 by 8 resistance heated unit.
The heating unit group that three groups of structures of Combined vertical thermal resistance stove of the present invention are identical forms star-star connection as shown in Figure 3, the power outlet 13 of the identical heating unit group of three groups of wiring accesses respectively the power supply neutral lead 14 of 18, three groups of heating unit groups of three-phase working power interface and connects.
The structure of Combined vertical thermal resistance stove heat-exchange system of the present invention as shown in Figure 4, is communicated with high-temperature medium pipeline 15 to form heat release passage; Cryogenic media pipeline 16 is communicated with and forms return flow line, the interior injection insulated heat-conducting medium 4 of unit housings 2 in resistance heated unit 17 after confirmation pipeline connects correctly, drive insulated heat-conducting medium 4 with medium circulation pump 12, insulated heat-conducting medium 4 media heat exchanger 11 of flowing through generates heat.

Claims (6)

1. a Combined vertical thermal resistance stove, is characterized in that: it is to be made up of heating unit group and heat-exchange system; Heating unit group is to adopt in parallel, series connection various combination by several resistance heated unit according to operating voltage and demanded power output; form three groups of heating unit groups that structure is identical, then completed and draw three terminals after star or angle scheme and access current supply circuit work by gauge tap; Resistance heated unit is made up of unit housings, resistance heater assembly, insulated heat-conducting medium, insulating sleeve, medium delivery outlet, medium input port and heat-insulation layer; Resistance heater assembly is that upper end connects two insulating sleeves as wiring exit, and metal wire rod and support, the structural member fixing conductive exothermal metal wire rod, that make conductive exothermal metal wire rod tolerate specified power-frequency voltage insulating capacity to having between unit housings by can stablize conductive exothermal in insulated heat-conducting medium that are immersed in insulated heat-conducting medium form; Heat-exchange system is made up of some groups of medium circulation pumps, media heat exchanger and thermal cycle pipeline.
2. Combined vertical thermal resistance stove according to claim 1, is characterized in that: described unit housings is into the various solid containers that meet splendid attire insulated heat-conducting medium and resistance heater assembly needs.
3. Combined vertical thermal resistance stove according to claim 1, is characterized in that: the metal wire rod in described resistance heater assembly, stretches and make with metallic copper, aluminium, iron, chromium, nickel and alloy thereof.
4. Combined vertical thermal resistance stove according to claim 1, is characterized in that: the structural member in described resistance heater assembly, and with insulating ceramics, macromolecular material, glass fibre making.
5. Combined vertical thermal resistance stove according to claim 1, it is characterized in that: described insulated heat-conducting medium is by meeting the rated operational voltage insulating requirements applying on resistance heater assembly, and the liquid formation that the heat energy stable circulation producing on resistance heater assembly can be derived, as insulating oil, conduction oil, pure water.
6. Combined vertical thermal resistance stove according to claim 1, it is characterized in that: described media heat exchanger is board-like or shell-and-tube heat exchanger, the heat energy that resistance heater assembly discharges heats up the insulated heat-conducting medium in resistance heated unit, the unit heat release of each resistance heated is connected in parallel on thermal cycle pipeline, high-temperature medium under the driving of medium circulation pump in resistance heated unit discharges heat energy through output channel inflow heat exchanger, completing cryogenic media after heat exchange sends resistance heated unit back to through reflux line and completes heat release circuit cycle, according to user's request heat exchanger output hot water, steam, hot-air.
CN201420070281.3U 2014-02-18 2014-02-18 Combined directly-heating resistance furnace Expired - Lifetime CN203704672U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420070281.3U CN203704672U (en) 2014-02-18 2014-02-18 Combined directly-heating resistance furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420070281.3U CN203704672U (en) 2014-02-18 2014-02-18 Combined directly-heating resistance furnace

Publications (1)

Publication Number Publication Date
CN203704672U true CN203704672U (en) 2014-07-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420070281.3U Expired - Lifetime CN203704672U (en) 2014-02-18 2014-02-18 Combined directly-heating resistance furnace

Country Status (1)

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CN (1) CN203704672U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015124078A1 (en) * 2014-02-18 2015-08-27 朱建新 Combined directly-heating resistance furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015124078A1 (en) * 2014-02-18 2015-08-27 朱建新 Combined directly-heating resistance furnace

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Granted publication date: 20140709

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