CN2035450U - Thermal insulator for shaft furnace vacuum chamber - Google Patents

Thermal insulator for shaft furnace vacuum chamber Download PDF

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Publication number
CN2035450U
CN2035450U CN 88209365 CN88209365U CN2035450U CN 2035450 U CN2035450 U CN 2035450U CN 88209365 CN88209365 CN 88209365 CN 88209365 U CN88209365 U CN 88209365U CN 2035450 U CN2035450 U CN 2035450U
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CN
China
Prior art keywords
vacuum room
room type
cavity
type insulation
insulation device
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.)
Withdrawn
Application number
CN 88209365
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Chinese (zh)
Inventor
李华
修德金
刘承仁
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to CN 88209365 priority Critical patent/CN2035450U/en
Publication of CN2035450U publication Critical patent/CN2035450U/en
Withdrawn legal-status Critical Current

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Abstract

The utility model discloses a heat insulation device of a vacuum chamber type of the well type furnace in the field of heat treatment, which is characterized in that the inner portion welded (or adhered) by boards forms a hollow cavity with a certain shape and a certain capacity. The inner portion of the hollow cavity can be designed with a plurality of support posts and reflecting boards according to the requirements and the hollow cavity is sealed after evacuation. The utility model can be made into various combination blocks and can also be made into the integration similar to the external dimension of the working room of the equipment or the inner side of an outer shell. The utility model is used for the heat insulation layer of various heating furnaces of a well type and the energy loss passing through a furnace chamber can be reduced by more than 80%.

Description

Thermal insulator for shaft furnace vacuum chamber
The utility model belongs to the thermal treatment field.
The thermal treatment pit furnace, energy consumption is very big during work, and it is to have lost by the furnace wall heat radiation that sizable part energy is wherein arranged.In order to reduce this power loss and to improve working conditions, in existing technology, normally adopt the thickness that increases thermal insulation layer and select for use the material of less thermal conductivity to solve.This method is feasible aborning, and effect also is good, but still has following deficiency: 1. the furnace wall thermosteresis is big, and 2. equipment volume is big.In order to solve the deficiency of prior art, special the utility model solution that proposes.
The basic design of the utility model solution is: 1. reduce the thermal conductivity of thermofin to greatest extent, make it 2. to reduce the thermosteresis that is caused because of the furnace wall radiation less than 0.02 kilocalorie/mph ℃.It is characterized in that, in the thermal insulation layer of furnace wall, be provided with vacuum room type insulation device (10), its concrete feature is, this device is to form the outer wall (1) with certain geometrical shape by sheet material seam (or bonding), it is inner form a constant volume and the rectangle of shape, lonely shape, annular, garden dish type, hollow garden cylindricality or with the outdoor shape cavity similar of equipment work (4), perhaps be designed to the cavity and the profile of other shapes on request, cavity (4) is evacuated, and (pressure is 1 * 10 5~1 * 10 -9Handkerchief) back sealing, the general interior pressure of cavity (4) is less than 0.1 handkerchief, in order to reduce thermal radiation loss, in cavity (4), be provided with the higher plate of one or more smooth finish as radiation shield (3), the vacuum room type insulation device that on the less low-temperature heat stove of radiating capacity, uses, also can not add radiation shield (3) in its cavity (4), in order to improve the intensity of vacuum room type insulation device, in cavity (4), can be provided with a plurality of pillar stiffeners (or muscle) (2), the vacuum room type insulation device that small size or sheet metal thickness are bigger, look its situation and also can not establish pillar stiffener (or muscle) (2), vacuum room type insulation device, can make to the burner hearth appearance similar or to the similar integral body of the inboard shape of device housings, also can make several single piece bodies according to equipment claimed, for make heating unit in the stove etc. can with the power supply of device external, temperature control line or pipeline are connected, and can be provided with one or several special hole (5) of certain size size in the appropriate location of vacuum room type insulation device.
Fig. 1 is the structural representation of vacuum room type insulation device.Fig. 1-a is the vacuum room type insulation device that is provided with pillar stiffener (or muscle) (2) and radiation shield (3) in the cavity (4).At the outer wall (1) that becomes to have certain geometrical shape by sheet material seam (or bonding), in its inner formed cavity (4), pillar stiffener (or muscle) (2) and radiation shield (3) are housed, several grooves (6) of all promising installation radiation shield (3) usefulness on each pillar stiffener (or muscle) (2).Fig. 1-b does not install pillar stiffener (or muscle) (2) and radiation shield (3) in the cavity (4), and has the vacuum room type insulation device of special hole (5).
Fig. 2 is the specific embodiment of the utility model synoptic diagram.
Describe details of the present utility model and application in detail below in conjunction with specific embodiment.
RJ-25-6 type well formula resistance furnace is equipped with vacuum room type insulation device.The outer wall of vacuum room type insulation device (1) is to be welded with the thick steel plate of 2.5mm, and radiation shield (3) is to make of the 0.3mm Cold Rolled Sheet Steel, and surface smoothness is not less than 6, φ 15 * 45mm is made and be assembled into to pillar stiffener (2) with alumina-ceramic, the garden post that has groove (6), 2 radiation shields (3) are housed in cavity (4), they are at a distance of 10mm, the special construction of pillar stiffener (2) and the groove (6) that forms, can make when it plays support outer wall (1) effect by radiation shield (3), play the effect of fixation reflex screen (3) again, the two ends of pillar stiffener (2) closely contacts with outer wall (1), and available binding agent and outer wall (1) bonding, and the distance between the pillar stiffener (2) obviously is deformed into suitable with outer wall (1) nothing, generally can be made as 100mm, seam after installing vacuumizes, and seals when pressure is less than 0.1 handkerchief in cavity (4), qualified on inspection, drop into assembling and use.
For easy construction, the vacuum room type insulation device (10) that bell (7) is installed, it is the revolution bodily form that the medullary ray with " Jiong " word is an axle, it can be divided into garden, top dish type and garden, bottom annular two portions, the diameter of its garden dish type is than the little 20mm of shell (8) inwall of bell (7), and thickness is 50mm, and the special hole (5) of φ 50mm is left at dish middle part, garden, the outer garden of its garden annular size is less than the inboard 20mm of bell (7) shell (8), and thickness is 50mm.The whole height of garden dish and garden ring is less than the 30mm of bell (7) height; The vacuum room type insulation device (10) that body of heater (9) is installed is made hollow garden cylindricality, its outer garden is less than the 20mm of shaft jacket (8) internal diameter, height is less than the 80mm of shaft, thickness is 50mm, wherein part leaves two special hole (5), the vacuum room type insulation device that furnace bottom is used makes the garden dish type, and its diameter is less than the 20mm of furnace bottom internal diameter, and thickness is 50mm.In order to alleviate the pressure of bottom vacuum room type insulation device, when building stove, can establish support (11), so that the weight of body of heater and workpiece drops on the support (11).
The further improvement that the vacuum room type insulation device pit furnace is housed is, remove XBWC, be lined with 10mm aluminum silicate fiber (12) between vacuum room type insulation device (10) and the furnace shell (8), be lined with the thick aluminum silicate fiber of 30mm (12) between vacuum room type insulation device (10) and the refractory brick (13), like this, the thickness of furnace wall can reduce to 255mm by original 365mm, therefore, reduced the size and the weight of equipment, and the amount of electricity saving of whole equipment can reach more than 10%.
The further improvement that the pit furnace of vacuum room type insulation device is housed is to eliminate the body of heater shell of prior art, and the body of heater shell is made vacuum room type insulation device of the present utility model.
The utility model is applicable to the pit furnace of solid, liquid, geseous fuel, comprises the well formula resistance furnace under pit gas carburizing furnace, well formula gas nitriding furnace and all temps.

Claims (4)

1, the vacuum room type insulation device of the heat insulation usefulness of a kind of heat treatment well type stove, it is characterized in that, vacuum room type insulation device is the outer wall [1] that is become to have certain geometrical shape by sheet material seam (or bonding), its inside has the cavity [4] of definite shape and capacity, and with the be evacuated heat-proof device of back sealing of cavity [4].
2, vacuum room type insulation device according to claim 1 is characterized in that, also can be provided with plurality of support columns (or muscle) (2) and one or more radiation shield (3) in the cavity (4).
3, vacuum room type insulation device according to claim 1 is characterized in that, the interior pressure of cavity (4) is 1 * 10 5~1 * 10 -9Handkerchief is generally less than 0.1 handkerchief.
4, according to claim 1 or 2 or 3 described vacuum room type insulation devices, it is characterized in that, its geometrical shape and size can be adapted to the needs of body of heater thermofin, make other shapes of rectangle, lonely shape, garden dish type, hollow garden cylindricality, annular or like device working spaces profile or similar body of heater shell inboard, can make whole shape or several single piece bodies by the size of body of heater thermofin.
CN 88209365 1988-08-04 1988-08-04 Thermal insulator for shaft furnace vacuum chamber Withdrawn CN2035450U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 88209365 CN2035450U (en) 1988-08-04 1988-08-04 Thermal insulator for shaft furnace vacuum chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 88209365 CN2035450U (en) 1988-08-04 1988-08-04 Thermal insulator for shaft furnace vacuum chamber

Publications (1)

Publication Number Publication Date
CN2035450U true CN2035450U (en) 1989-04-05

Family

ID=4843025

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 88209365 Withdrawn CN2035450U (en) 1988-08-04 1988-08-04 Thermal insulator for shaft furnace vacuum chamber

Country Status (1)

Country Link
CN (1) CN2035450U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102213544A (en) * 2011-05-10 2011-10-12 丽水市华一自动化技术有限公司 Tempering furnace
CN109852772A (en) * 2019-01-31 2019-06-07 武汉科技大学 A kind of metal material attemperator and its heat preserving method
WO2020156334A1 (en) * 2019-01-31 2020-08-06 武汉科技大学 Metal-material heat insulation device and heat insulation method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102213544A (en) * 2011-05-10 2011-10-12 丽水市华一自动化技术有限公司 Tempering furnace
CN109852772A (en) * 2019-01-31 2019-06-07 武汉科技大学 A kind of metal material attemperator and its heat preserving method
WO2020156334A1 (en) * 2019-01-31 2020-08-06 武汉科技大学 Metal-material heat insulation device and heat insulation method

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