CN216795409U

CN216795409U - Heat insulation box for surface of high-temperature object

Info

Publication number: CN216795409U
Application number: CN202122801668.4U
Authority: CN
Inventors: 张君
Original assignee: Baowu Equipment Intelligent Technology Co Ltd
Current assignee: Baowu Equipment Intelligent Technology Co Ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-06-21
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a heat insulation box for the surface of a high-temperature object, which comprises an outer shell and a mounting bracket, wherein the mounting bracket is arranged on the back surface of the outer shell, the heat insulation box also comprises an inner shell, a cover plate, a low-temperature phase change material and a nano microcrystal heat insulation plate, the shell walls of the outer shell and the inner shell are respectively provided with an outer cabin and an inner cabin, the outer cabin is a vacuum cavity, the low-temperature phase change material is filled in the inner cabin, the inner shell is nested in the outer shell, the cover plate is arranged on the surface of the outer shell, the cover plate is provided with an upper inner cavity and a lower inner cavity, the lower inner cavity is filled with the low-temperature phase change material, and the nano microcrystal heat insulation plate is adhered to the inner and outer surfaces of the shell and the shell walls of the inner shell and the inner and outer surfaces of the cover plate. The defect of traditional heat-insulating box is overcome to this heat-insulating box, can be applied to the long-time normal work that high temperature object surface realized inside electrical system, ensures the process on-line monitoring to high temperature object, improves the security of high temperature object operation, stops the potential safety hazard.

Description

Heat insulation box for surface of high-temperature object

Technical Field

The utility model relates to the technical field of detection and refractory materials, in particular to a heat insulation box for the surface of a high-temperature object.

Background

The steel smelting process involves various high-temperature molten metal containers, such as iron ladles, torpedo cars, steel ladles, tundishes, converters and the like, the devices are basically of structures with metal shells lined with various composite refractory materials, and liquid metal (molten iron or molten steel) with the temperature of more than 1500 ℃ is filled in the high-temperature molten metal containers. In the production process, the temperature of the metal shell can even reach about 450 ℃.

In the actual production process, the temperature of the lining/shell of the high-temperature molten metal container needs to be monitored on line by adopting a K-type thermocouple, the thermocouple can endure the high working temperature, but the subsequent electrical system of a data acquisition unit and the like usually needs to work in the environment of lower than 75 ℃. But most current hot box/(explosion-proof) electrical panel cabinets etc. all can only keep effectual operating temperature in the short time, and can not normally work under the high temperature operating mode for a long time, seriously influence data acquisition and processing. In addition, since the high-temperature molten metal container needs to be moved according to the smelting process and transported by using a train, a special vehicle or a crown block, the strength and the shock resistance of the heat insulation box are required to be good, and the electric system in the box needs to continuously work for at least 20 days (generally, a repair period) by adopting a mode of supplying power to the battery pack, so that the electric system and the battery pack cannot be cooled by adopting continuous air cooling and water cooling or additionally installing a refrigeration chip. Therefore, although the heat insulation box made of refractory materials such as high-temperature resistant heat insulation plates and the like has feasible heat insulation effect, the strength is not enough, the volume is clumsy, and the heat insulation box cannot meet the requirement of long-time work.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the heat insulation box for the surface of the high-temperature object, which overcomes the defects of the traditional heat insulation box, can be applied to the surface of the high-temperature object to realize long-time normal work of an internal electrical system, ensures the online monitoring of the process of the high-temperature object, improves the operation safety of the high-temperature object and avoids potential safety hazards.

In order to solve the technical problems, the heat insulation box for the surface of the high-temperature object comprises an outer shell and an installation support, wherein the installation support is arranged on the back face of the outer shell, the heat insulation box further comprises an inner shell, a cover plate, a low-temperature phase change material and a nano microcrystalline heat insulation plate, the shell walls of the outer shell and the inner shell are respectively provided with an outer cabin and an inner cabin, the outer cabin is a vacuum cavity, the low-temperature phase change material is filled in the inner cabin, the inner shell is nested in the outer shell, the cover plate is arranged on the surface of the outer shell and is provided with an upper layer inner cavity and a lower layer inner cavity, the lower layer inner cavity is filled with the low-temperature phase change material, and the nano microcrystalline heat insulation plate is adhered to the inner surfaces and the outer surfaces of the shell walls of the outer shell and the inner surface of the cover plate.

Further, the shell body adopts 1mm thick steel plate punching press to weld into the opening cavity, interior casing adopts 0.5mm thick steel plate punching press welding to make, adopt the nylon screw to establish ties fixedly between shell body and the interior casing.

Further, the interval between shell body and the interior casing is 10mm at least.

Furthermore, a plurality of heat dissipation holes are formed in the surface of the cover plate at intervals.

The heat insulation box for the surface of the high-temperature object adopts the technical scheme, namely the heat insulation box comprises an outer shell and an installation support, wherein the installation support is arranged on the back surface of the outer shell, the heat insulation box also comprises an inner shell, a cover plate, a low-temperature phase change material and a nano microcrystal heat insulation plate, the shell walls of the outer shell and the inner shell are respectively provided with an outer cabin and an inner cabin, the outer cabin is a vacuum cavity, the low-temperature phase change material is filled in the inner cabin, the inner shell is nested in the outer shell, the cover plate is arranged on the surface of the outer shell, the cover plate is provided with an upper layer inner cavity and a lower layer inner cavity, the lower layer inner cavity is filled with the low-temperature phase change material, and the nano microcrystal heat insulation plate is adhered to the inner and outer surfaces of the shell walls and the inner shell and the inner and outer surfaces of the cover plate. The defect of traditional heat-insulating box is overcome to this heat-insulating box, can be applied to the long-time normal work that high temperature object surface realized inside electrical system, ensures the process on-line monitoring to high temperature object, improves the security of high temperature object operation, stops the potential safety hazard.

Drawings

The utility model is described in further detail below with reference to the following figures and embodiments:

FIG. 1 is a schematic view of the construction of a heat insulating box for a surface of a high temperature object according to the present invention;

fig. 2 is a view from a-a of fig. 1.

Detailed Description

The embodiment of the utility model is shown in fig. 1 and fig. 2, the heat insulation box for the surface of a high-temperature object comprises an outer shell 1 and an installation support 2, wherein the installation support 2 is arranged on the back of the outer shell 1, the heat insulation box further comprises an inner shell 3, a cover plate 4, a low-temperature phase change material 5 and a nanocrystalline heat insulation plate 6, the shell walls of the outer shell 1 and the inner shell 3 are respectively provided with an outer cabin and an inner cabin, the outer cabin is a vacuum cavity, the low-temperature phase change material 5 is filled in the inner cabin, the inner shell 3 is nested in the outer shell 1, the cover plate 4 is arranged on the surface of the outer shell 1, the cover plate 4 is provided with an upper layer inner cavity and a lower layer inner cavity, the lower layer inner cavity is filled with the low-temperature phase change material 5, and the nanocrystalline heat insulation plate 6 is adhered to the inner and outer surfaces of the shell walls of the outer shell 1 and the inner shell 3 and the inner and outer surfaces of the cover plate 4.

Preferably, the outer casing 1 adopts 1mm thick steel plate punching press to weld into the opening cavity, interior casing 3 adopts 0.5mm thick steel plate punching press welding to make, adopt nylon screw 7 to establish ties fixedly between outer casing 1 and the interior casing 3.

Preferably, the distance between the outer shell 1 and the inner shell 3 is at least 10 mm.

Preferably, a plurality of heat dissipation holes 41 are formed on the surface of the cover plate 4 at intervals.

This heat insulation box passes through installing support 2 to be installed on the high temperature smelting container shell, electric system 8 locates and is used for carrying out on-line monitoring to the high temperature smelting container in 3 cavities of interior casing, the heat that the high temperature smelting container conducted is isolated to vacuum cavity and the nanometer micrite heat insulating board 6 through shell body 1 and interior casing 3, cool off incasement environment and electric system 8 by filling in low temperature phase change material 5 in shell body 1 and interior 3 inner deck simultaneously, can use in high temperature environment for a long time, make electric system 8 can effectively survey the temperature of each measurement point in the inside or heating environment of high temperature melting container.

For example, the residual thickness of the in-use ladle lining is monitored on line, the temperature data of the permanent layer in the cladding is collected through a thermocouple, and the residual thickness of the ladle lining after the refractory material is lost is deduced through the combination of a temperature field and finite element calculation. The residual service life of the steel ladle can be predicted through the residual thickness, the steel ladle lining structure damage condition which possibly occurs can be pre-warned through the temperature abnormal signal, the pre-warning signal is sent to an upper computer system, production operators are reminded to timely carry out off-line treatment on the abnormal steel ladle, and the safety production accident of steel ladle breakout is avoided.

Thermocouples are mainly distributed at the slag line part of the lining, the ladle wall and the molten steel impact position of the ladle bottom, wherein the lining is most easily damaged, and 50-70 thermocouples are distributed to cover a ladle monitoring area for real-time monitoring of a temperature field. Because the steel ladle is filled with molten steel at about 1550 ℃, the temperature of the outer surface steel shell can reach 350-450 ℃ in the production process, and the steel ladle needs to be transferred to a converter station and a refining station through a special vehicle or lifted to a continuous casting platform by using a crane for casting operation. Therefore, the normal operation of the electrical system for temperature acquisition and the battery for power supply in the box can not be ensured by adopting the common electrical panel box, and even accidents such as burning of the electrical system or battery explosion can occur due to ultrahigh temperature.

The heat insulation box is arranged on the surface of the steel ladle through the mounting bracket, the electrical system and the power supply battery pack are arranged in the inner shell cavity of the heat insulation box, and after a plurality of steel ladles continuously work for one month, the actual measurement and monitoring of the environmental temperature in the heat insulation box can ensure that a normal-temperature (40 ℃ -57 ℃) working environment is provided for the electrical system and the power supply battery pack all the time. Through practical application verification, the heat insulation box meets the field use condition, ensures the online monitoring of the process of the steel ladle, improves the safety of steel ladle operation, and avoids potential safety hazards.

Claims

1. The utility model provides a heat-proof box for high temperature object surface, includes shell body and installing support, the installing support is located the shell body back, its characterized in that: still include interior casing, apron, low temperature phase change material and nanometer micrite heat insulating board, the conch wall of shell body and interior casing is equipped with outer cabin and interior cabin respectively, the outer cabin is the vacuum cavity, low temperature phase change material fill in interior cabin, interior casing nestification in the shell body, the apron is located the shell body surface, and the apron is equipped with upper inner chamber and lower floor's inner chamber, lower floor's inner chamber intussuseption low temperature phase change material, nanometer micrite heat insulating board paste in the interior external surface of shell body and interior conch wall and the interior external surface of apron.

2. The heat shield box for a surface of a high temperature object according to claim 1, wherein: the shell body adopts 1mm thick steel plate punching press to weld into the opening cavity, interior casing adopts 0.5mm thick steel plate punching press welding to make, it is fixed to adopt the nylon screw to establish ties between shell body and the interior casing.

3. The heat insulation box for the surface of a high temperature object according to claim 1 or 2, characterized in that: the interval between shell body and the interior casing is 10mm at least.

4. The heat shield box for a surface of a high temperature object according to claim 3, wherein: a plurality of heat dissipation holes are formed in the surface of the cover plate at intervals.