CN202973555U - Radiation type electric heating device - Google Patents
Radiation type electric heating device Download PDFInfo
- Publication number
- CN202973555U CN202973555U CN201220485143.2U CN201220485143U CN202973555U CN 202973555 U CN202973555 U CN 202973555U CN 201220485143 U CN201220485143 U CN 201220485143U CN 202973555 U CN202973555 U CN 202973555U
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- housing
- electric heater
- type electric
- radiation type
- casing
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Abstract
The utility model relates to an electric heating device, particularly to a radiation type electric heating device used for heating fluid medium. The electric heating device includes a horizontal casing which wholly takes the shape of a cylinder or a cuboid; a fire-resistant insulating layer is arranged on the inner wall of the casing; electrical heating elements are arrayed on the inner wall of the fire-resistant insulating layer; a heat exchange spiral pipe for introducing to-be-heated medium in a circulating way is arranged in an inner chamber of the casing; the casing consists of two half casings and a fixed casing, wherein the fixed casing is positioned at the bottom of the entire casing, the two half casings are positioned at the two lateral parts of the entire casing; the upper edges of the two half casings are connected with the front ends and the rear ends of the two half casings through flange-type rims; the lower edges of the two half casings are connected with the two side edges of the fixed casing through flange-type rims respectively; the fixed casing is fixedly mounted on a fixed base; and a bracket used for supporting the bottom of the heat exchange spiral pipe is arranged on the inner side of the fixed casing. The radiation type electric heating device has the advantages of reliable operation, convenience for installation and maintenance and excellent safety.
Description
Technical field
The utility model relates to a kind of electric heater unit, specifically plants to be used for the radiation type electric heater that fluid medium heats.
Background technology
The fluid media (medium) of normal temperature or low temperature requires to be heated to relatively high temperature and fluid media (medium) has very strong corrosivity, and requiring heat generating member can not when being heated fluid media (medium) and contact heating, be generally to adopt radiation type electric heater to heat.Usually radiation type electric heater is the vertical or horizontal type structure of near cylindrical profile, arranges the heat generating member structure on the inner cylinder face in refractory insulating layer.Due to the vibration effect that is heated fluid media (medium) and can makes coil pipe produce by the heat exchange spiral coil, the heat generating member that electric heater inner cylinder face top is arranged is fragile or come off, and causes heater (stove) interruption of work, security incident even occurs.In addition, the structure that the up and down is involutory is also brought difficulty to installation, maintenance.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of reliable, easy to installation and maintenance, radiation type electric heater that security is good is provided.
Radiation type electric heater of the present utility model comprises the housing of a horizontal metal plate structure, and housing integral body is cylindric or rectangular shape, and inner walls is provided with refractory insulating layer, is placed with heating on the refractory insulating layer inwall.The heat exchange spiral coil that being provided with in the housing inner chamber to circulate passes into heated medium; Described housing is comprised of two and half housings and stationary housing three parts, described stationary housing is positioned at the bottom of whole housing, two and half housings are positioned at the both sides of whole housing, the top edge of two and half housings is connected the flange form edge with the edge, rear and front end and connects with a plurality of securing members, and the lower limb of two and half housings is connected with a plurality of securing members by the flange form edge with two sides of stationary housing respectively; Described stationary housing is fixedly mounted on a firm banking, and the stationary housing inboard is provided with the support that heat exchanging spiral coil bottom is supported, and firm banking fixedly mounts with the electric heater basis.
Be respectively arranged with horizontal guide rail on electric heater basis outside the both sides of described firm banking, described two and half housing bottoms drop on guide rail by roller mount, and two and half housings can be removed along guide rail to both sides or involutory;
Described heating is high-resistance electrothermic alloy silk or high-resistance electrothermic alloy band;
Described refractory insulating layer includes one or both combinations in fibrous flame-proof thermal insulation material and this bi-material of refractory brick.
Described heating be arranged in the refractory insulating layer inwall vertically to the side.
Described shell end is provided with anti-explosion terminal box, and anti-explosion terminal box can be flame-proof type.
Be provided with pressure-reducing valve and nitrogen inflation inlet near on the housing end face of anti-explosion terminal box one side, be provided with nitrogen exhaust outlet and air bleeding valve on housing opposite side end face.
The top of described half housing is placed with temperature sensor along its length;
And the top joint of described one half housings is provided with air-leakage detector.
Advantage applies of the present utility model exists:
1, the housing major part of electric heater adopts involutory two parts half shell structure of level, by push away, draw can make half housing along track separate, closure, operate simple and easy, convenient, safety, the installation, maintenance cost is low.
2, the mounting bracket of spiral coil is provided with on the stationary housing at middle part, and overall structure is reliable and stable.
3, electric heater adopts on electrical heating heat generating member radiant heat transfer form and housing insulation material is set, and quality is light, and heat loss is little.
Description of drawings
Fig. 1 is the vertical section structure schematic diagram of the utility model embodiment;
Fig. 2 is the cross section structure schematic diagram of the utility model embodiment;
Fig. 3 is end face structure schematic diagram of the present utility model.
The specific embodiment
As shown in the figure, this radiation type electric heater comprises the housing 1 of a horizontal metal plate structure, housing integral body is cylindric or rectangular shape, inner walls is provided with refractory insulating layer 2, be placed with heating 3 on the refractory insulating layer inwall, heating usually only be arranged in the refractory insulating layer inwall vertically to the side, will not arrange in the top.The heat exchange spiral coil 4 that being provided with in the housing inner chamber to circulate passes into heated medium, heat exchange spiral coil are one or many of arranging by certain forms; Housing 1 is comprised of two and half housings 11 and stationary housing 12 3 parts, stationary housing 12 is positioned at the bottom of whole housing, two and half housings 11 are positioned at the both sides of whole housing, the top edge of two and half housings 11 is connected the flange form edge with the edge, rear and front end and connects with a plurality of securing members, and the lower limb of two and half housings 11 is connected with a plurality of securing members by the flange form edge with two sides of stationary housing 12 respectively; Stationary housing 12 is fixedly mounted on a firm banking 5, and the stationary housing inboard is provided with the support 13 that spiral coil 4 bottoms are supported, and fixing with the electric heater basis.
There are respectively 51, two, horizontal guide rail half housing 11 bottoms to be located on guide rail by roller 14 on electric heater basis outside the both sides of described firm banking 5, two and half housings 11 can be removed along guide rail to both sides or involutory.
Described heating 3 is high-resistance electrothermic alloy silk or high-resistance electrothermic alloy band.
Described refractory insulating layer 2 includes a kind of in fibrous flame-proof thermal insulation material and this bi-material of refractory brick
Or two kinds of combinations.
Described housing 1 end is provided with anti-explosion terminal box 6, and the structure of anti-explosion terminal box can be flame-proof type, also can
To be other type (as: essential safe type, positive pressure type).
Near being provided with pressure-reducing valve and nitrogen inflation inlet 15 on the housing end face of anti-explosion terminal box one side, be provided with nitrogen exhaust outlet and air bleeding valve on housing opposite side end face, be used for to being filled with protective gas in housing, element service life in extending.The housing end side can also be provided with safety valve, Pressure gauge and observation panel.
The top of described half housing 11 is placed with temperature sensor 7 along its length, be used for monitor temperature, prevents that housing is overheated.
The top of described housing is provided with air-leakage detector 8.
Claims (10)
1. radiation type electric heater, it comprises the housing (1) of a horizontal metal plate structure, housing integral body is cylindric or rectangular shape, inner walls is provided with refractory insulating layer (2), be placed with heating (3) on the refractory insulating layer inwall, the heat exchange spiral coil (4) that being provided with in the housing inner chamber to circulate passes into heated medium; It is characterized in that: housing (1) is comprised of two and half housings (11) and stationary housing (12) three parts, stationary housing (12) is positioned at the bottom of whole housing, two and half housings (11) are positioned at the both sides of whole housing, the top edge of two and half housings (11) is connected the flange form edge with the edge, rear and front end and connects with a plurality of securing members, and the lower limb of two and half housings (11) is connected with a plurality of securing members by the flange form edge with two sides of stationary housing (12) respectively; Stationary housing (12) is fixedly mounted on a firm banking (5), and the stationary housing inboard is provided with the support (13) that heat exchanging spiral coil (4) bottom is supported; Firm banking (5) and electric heater basis fixed installation.
2. radiation type electric heater according to claim 1, it is characterized in that: be respectively arranged with horizontal guide rail (51) on the electric heater basis outside described firm banking (5) both sides, two and half housings (11) bottoms is located on guide rail by roller (14), and two and half housings (11) can be removed along guide rail to both sides or involutory.
3. radiation type electric heater according to claim 1 and 2 is characterized in that: described heat exchange spiral coil (4) is one or more arrangement.
4. radiation type electric heater according to claim 1 and 2, it is characterized in that: described heating (3) is high-resistance electrothermic alloy silk or high-resistance electrothermic alloy band.
5. radiation type electric heater according to claim 1 and 2, it is characterized in that: described refractory insulating layer (2) includes one or both combinations in fibrous flame-proof thermal insulation material and this bi-material of refractory brick.
6. radiation type electric heater according to claim 1 and 2 is characterized in that: described heating (3) be arranged in the refractory insulating layer inwall vertically to the side.
7. radiation type electric heater according to claim 1 and 2 is characterized in that: described housing (1) end is provided with flame-proof type explosion-proof terminal box (6).
8. radiation type electric heater according to claim 7, is characterized in that: be provided with pressure-reducing valve and nitrogen inflation inlet (15) near on the housing end face of anti-explosion terminal box one side, be provided with nitrogen exhaust outlet and air bleeding valve on housing opposite side end face.
9. radiation type electric heater according to claim 1 and 2, it is characterized in that: the top of described half housing (11) is placed with temperature sensor (7) along its length.
10. radiation type electric heater according to claim 1 and 2, it is characterized in that: the top of described housing (1) is provided with air-leakage detector (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220485143.2U CN202973555U (en) | 2012-09-21 | 2012-09-21 | Radiation type electric heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220485143.2U CN202973555U (en) | 2012-09-21 | 2012-09-21 | Radiation type electric heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973555U true CN202973555U (en) | 2013-06-05 |
Family
ID=48514623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220485143.2U Expired - Lifetime CN202973555U (en) | 2012-09-21 | 2012-09-21 | Radiation type electric heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202973555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061684A (en) * | 2014-06-25 | 2014-09-24 | 镇江东方电热有限公司(中外合资) | Radiation type electric heater |
| CN105387511A (en) * | 2015-10-28 | 2016-03-09 | 桂林新艺制冷设备有限责任公司 | Warmer long in service life |
-
2012
- 2012-09-21 CN CN201220485143.2U patent/CN202973555U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061684A (en) * | 2014-06-25 | 2014-09-24 | 镇江东方电热有限公司(中外合资) | Radiation type electric heater |
| CN105387511A (en) * | 2015-10-28 | 2016-03-09 | 桂林新艺制冷设备有限责任公司 | Warmer long in service life |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |