CN203279212U

CN203279212U - Resistance-heated furnace

Info

Publication number: CN203279212U
Application number: CN 201320299760
Authority: CN
Inventors: 王子金
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-28
Filing date: 2013-05-28
Publication date: 2013-11-06
Anticipated expiration: 2023-05-28

Abstract

The utility model provides a resistance-heated furnace, comprising a furnace body and resistance-heated elements. The resistance-heated element comprises a terminal, and a protective sleeve disposed outside the terminal. The resistance-heated element also comprises a hoisting upper flange, a hoisting wire hanging insulating frame, a resistance wire, and hoisting rods. The hoisting upper flange is fixed on a lower end of the protective sleeve. The hoisting wire hanging insulating frame is in a columnar shape, and is provided with two hoisting rod holes inside. The two hoisting rods are respectively disposed in the two hoisting rod holes. The outer wall of the hoisting wire hanging insulating frame is coiled with the resistance wire. Upper ends of the hoisting wire hanging insulating frame and the hoisting rods are disposed on a lower surface of the hoisting upper flange. One end of the resistance wire is connected with the terminal, and the other end is connected with the furnace body through the hoisting rods. The outer wall of the furnace body is provided with at least a hoisting lower flange. The hoisting upper flange of each resistance-heated element is respectively fixed with one hoisting lower flange. In the resistance-heated furnace, each heating element is light in volume, and each heating element is installed individually, so maintenance is simple, large-scale lifting equipment is not needed, and maintenance cost is low.

Description

Resistance-heated furnace

Technical field

The utility model relates to a kind of electric calorifie installation, relates to specifically a kind of electric calorifie installation with the electric connector that is specially adapted for high temperature.

Background technology

Electric furnace is firing equipment commonly used in the chemical process such as relieving haperacidity, chemical fertilizer, electric furnace commonly used has two kinds, a kind of is the electric heating pipe type electric furnace, another kind is the resistance wire type electric furnace, electric heating pipe type electric furnace non-refractory, fragile, heater element is many, wiring is inconvenient, and the later period maintenance expense is higher; And the resistance wire type electric furnace, there are single problems such as heater element is large, hoisting flange large, Heavy Weight of organizing, be the electric furnace that 200710304349.4 utility model patent relates to as the applicant's the patent No., need employ Large-scale Hoisting equipment during this resistance wire type electric furnace maintenance lifts, not only maintenance time is long, and the people is difficult to maintenance when few, and the later period maintenance expense is large.

The utility model content

The purpose of this utility model is to provide a kind of resistance-heated furnace, and its single heater element volume is light, and each heater element installs separately, and is easy to maintenance, need not Large-scale Hoisting equipment, and maintenance cost is low.

to achieve these goals, technical solution of the present utility model is: a kind of resistance-heated furnace, comprise body of heater and at least one resistance heating element, resistance heating element comprises binding post, the binding post overcoat has protective casing, described resistance heating element also comprises the lifting upper flange, the silk insulation skeleton is hung in lifting, resistance wire, vertical loading board, the lifting upper flange is fixed in the protective casing lower end, it is column that the silk insulation skeleton is hung in lifting, be provided with two axially extended vertical loading board holes in it, the axis that two vertical loading board holes hang the silk insulation skeleton along lifting is symmetrical, two vertical loading boards lay respectively in two vertical loading board holes, lifting is hung silk insulation skeleton outer wall and is wound with resistance wire, the silk insulation skeleton is hung in lifting, lifting upper flange lower surface all is fixed in the vertical loading board upper end, and resistance wire one end is communicated with binding post, the other end is communicated with body of heater by vertical loading board, furnace body outer wall is provided with at least one lifting lower flange, the lifting upper flange of every resistance heating element fixes with a lifting lower flange respectively.

The utility model resistance-heated furnace, wherein, described lifting is hung silk insulation skeleton outer wall and is provided with the groove that is the extension of single-screw shape, and resistance wire is located in groove.

The utility model resistance-heated furnace, wherein, the shape of cross section that the silk insulation skeleton is hung in described lifting is star, described groove is located on fin.

After adopting such scheme, the utility model resistance-heated furnace is because each resistance heating element is installed separately, therefore do not need Large-scale Hoisting equipment during installation, maintenance, and can change arbitrarily, when a resistance heating element is out of order, can need not to stop production by single Zhi Genghuan, and each resistance heating element is entwined by resistance wire, and therefore single resistance heating element is lightweight, and heating power is large, maintenance process is simple, expense is low, improves the economic benefit of enterprise.

Illustrate the utility model resistance-heated furnace below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the structure chart of the utility model resistance-heated furnace;

Fig. 2 is the structure chart of a resistance heating element in the utility model resistance-heated furnace;

Fig. 3 is the sectional view that in the utility model resistance-heated furnace, the silk insulation skeleton is hung in lifting.

Embodiment

as Fig. 1, shown in 2, the utility model resistance-heated furnace, comprise body of heater 02 and branched resistance heating element 01, body of heater 02 is provided with heat-insulation layer 22, resistance heating element 01 comprises binding post 11, binding post 11 overcoats have rainhat 14, protective casing 12, resistance heating element 01 also comprises lifting upper flange 13, silk insulation skeleton 15 is hung in lifting, resistance wire 17, vertical loading board 19, lifting upper flange 13 is welded in protective casing 12 lower ends, it is column that silk insulation skeleton 15 is hung in lifting, as shown in Figure 3, be provided with two axially extended vertical loading board holes 152 in it, it is symmetrical that two 152 edges, vertical loading board holes lift the axis of hanging silk insulation skeletons 15, two vertical loading boards 19 lay respectively in two vertical loading board holes 152, lifting is hung silk insulation skeleton 15 outer walls and is provided with the groove 151 that is the extension of single-screw shape, resistance wire 17 is located in groove 151, silk insulation skeleton 15 is hung in lifting, vertical loading board 19 upper ends all are fixedly welded on lifting upper flange 13 lower surfaces, and resistance wire 17 1 ends are communicated with binding post 11, the other end is communicated with body of heater 02 by vertical loading board 19, body of heater 02 outer wall is provided with a plurality of lifting lower flanges 21, the lifting upper flange 13 of every resistance heating element 01 is fixedly connected by bolt with a lifting lower flange 21 respectively, be provided with gasket seal between two flanges that are connected.

The shape of cross section that silk insulation skeleton 15 is hung in lifting is star, can select the various shapes such as pentalpha, hexagram as shown in Figure 3, heptangle star, and groove 151 is located on fin.

Binding post 11, vertical loading board 19 can be selected stainless steel, and rainhat 14 can be selected pottery, and protective casing 12 is gapless stainless steel tube; lift upper and

lower flange

13,21 and select stainless steel; lifting is hung silk insulation skeleton 15 and is selected corundum, and resistance wire is selected ferrum-chromium-aluminum, and body of heater 02 is selected plate in A3.

The utility model resistance-heated furnace during use is connected on power supply on the binding post 11 of each resistance heating element 01, makes temperature rising in body of heater, according to the actual condition needs, can select to install the resistance heating element of any group of number.

The above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model all should fall in the definite protection range of claims of the present utility model.

Claims

1. resistance-heated furnace, comprise body of heater (02) and at least one resistance heating element (01), resistance heating element (01) comprises binding post (11), binding post (11) overcoat has protective casing (12), it is characterized in that: described resistance heating element (01) also comprises lifting upper flange (13), silk insulation skeleton (15) is hung in lifting, resistance wire (17), vertical loading board (19), lifting upper flange (13) is fixed in protective casing (12) lower end, it is column that silk insulation skeleton (15) is hung in lifting, be provided with two axially extended vertical loading board holes (152) in it, the axis that two vertical loading board holes (152) hang silk insulation skeleton (15) along lifting is symmetrical, two vertical loading boards (19) lay respectively in two vertical loading board holes (152), lifting is hung silk insulation skeleton (15) outer wall and is wound with resistance wire (17), silk insulation skeleton (15) is hung in lifting, lifting upper flange (13) lower surface all is fixed in vertical loading board (19) upper end, and resistance wire (17) one ends are communicated with binding post (11), the other end is communicated with body of heater (02) by vertical loading board (19), body of heater (02) outer wall is provided with at least one lifting lower flange (21), the lifting upper flange (13) of every resistance heating element (01) fixes with a lifting lower flange (21) respectively.

2. resistance-heated furnace as claimed in claim 1 is characterized in that: described lifting is hung silk insulation skeleton (15) outer wall and is provided with and is the groove (151) that the single-screw shape extends, and resistance wire (17) is located in groove (151).

3. resistance-heated furnace as claimed in claim 2 is characterized in that: the shape of cross section that silk insulation skeleton (15) is hung in described lifting is star, and described groove (151) is located on fin.