CN107576586A - Silicon carbide refractory ceramics flame sprays thermal shock experimental provision and its application method - Google Patents
Silicon carbide refractory ceramics flame sprays thermal shock experimental provision and its application method Download PDFInfo
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- CN107576586A CN107576586A CN201710729023.XA CN201710729023A CN107576586A CN 107576586 A CN107576586 A CN 107576586A CN 201710729023 A CN201710729023 A CN 201710729023A CN 107576586 A CN107576586 A CN 107576586A
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- steelframe
- thermal shock
- silicon carbide
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- refractory ceramics
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Abstract
The invention discloses a kind of silicon carbide refractory ceramics flame injection thermal shock experimental provision and its application method, include the movable steel frame of rectangular shape, the side of the steelframe, which has, to be used to enter burner for what natural gas nozzle entered, the steelframe is provided with furnace wall outside the side relative with entering burner, the top surface of the steelframe is provided with the first refractory slab, the top surface of the steelframe is provided with the second refractory slab, and the top surface of first refractory slab is provided with insulation fibre cotton layer；Some pieces of bricks to be measured are provided with the inwall of the steelframe.The present invention can test the silicon carbide ceramics refractory brick of true form, the deviation for avoiding cutting sampling from bringing, and programming rate is fast and controllable, can effectively simulate the high thermal shock working environment of marine boiler.
Description
Technical field
The present invention relates to technical field of fire resistant material production, and in particular to a kind of silicon carbide refractory ceramics flame sprays thermal shock
Experimental provision and its application method.
Background technology
Silicon carbide refractory ceramics are one of most important critical materials of current booster boiler liner, and its use environment is severe,
Thermal shock resistance and service life to material propose harsh requirement.However, setting refractory thermal shock resistance is each
Class testing standard employs chilling method at present, and heating process is equal thermal environment, can not simulate silicon carbide refractory ceramics and heat up
During the thermal shock that is subject to.Therefore, true alternation thermal force, exploitation fire resisting pottery need to be simulated according to boiler liner working condition
Porcelain thermal shock resistance experimental assembly and method, the thermal shock resistance for evaluating refractory are significant.
The content of the invention
Present invention aims to overcome that the deficiency of above-mentioned background technology, and a kind of silicon carbide refractory ceramics flame injection is provided
Thermal shock experimental provision and its application method, the device can simulate boiler liner working condition, truly evaluate carborundum fire resisting
The thermal shock resistance of ceramics.
To achieve the above object, a kind of silicon carbide refractory ceramics flame injection thermal shock experimental provision provided by the present invention,
Include the movable steel frame of rectangular shape, the side of the steelframe, which has, to be used to enter burner, institute for what natural gas nozzle entered
State steelframe and be provided with furnace wall outside the side relative with entering burner, the top surface of the steelframe is provided with the first refractory slab, institute
The top surface for stating steelframe is provided with the second refractory slab, and the top surface of first refractory slab is provided with insulation fibre cotton layer；The steelframe
Inwall on be provided with some pieces of bricks to be measured.
Further, it also includes the first tempilstick and the second tempilstick, and the top surface of first tempilstick and steelframe hangs down
It is straight arrange and extend downwardly sequentially pass through insulation fibre cotton layer, the first refractory slab stretches into the inner chamber of steelframe；Second tempilstick
It is arranged vertically with the lateral surface of furnace wall.
Further, the quantity of the brick to be measured is 5~9 pieces, and the brick to be measured is located at relative with entering burner place side
Side and on the both sides adjacent with entering side where burner.
Further, the brick to be measured is T-shaped silicon carbide refractory ceramics brick.
Further, first refractory slab and the second refractory slab are 25~30mm of thickness silicon nitride combined silicon carbide
Plate.
Further, the insulation fibre cotton layer is alumina silicate fibre layer.
The present invention also provides a kind of application method of silicon carbide refractory ceramics flame injection thermal shock experimental provision, including as follows
Step：
Step 1：Burner face natural gas nozzle will be entered by first moving steelframe so that closely be pasted between steelframe and natural gas nozzle
Close, then firing up, the flame temperature of natural gas nozzle is 1500~1700 DEG C, and power is 400~450kW；
Step 2：Using the inner chamber temperature of the first tempilstick measurement steelframe, while using the temperature of the second tempilstick measurement furnace wall
Degree, stops working when temperature or heat time reach setting value, and thermal shock is realized in cooling；
Step 3：After flame-out, simulation thermal shock period effects of repeatedly stopping working after circulation igniting；
Step 4：Circulating cycle issue when visible crack occurs first in brick to be measured is recorded, the circulating cycle issue is to be measured as this
The thermal shock resistance index of brick.
Compared with prior art, there is following advantage in the present invention：
First, the present invention can test the silicon carbide ceramics refractory brick of true form, the deviation for avoiding cutting sampling from bringing.
Second, the device programming rate of the present invention is fast and controllable, the high thermal shock building ring of marine boiler can be effectively simulated
Border.
Third, the present invention can disposable test polylith silicon carbide ceramics refractory brick, improve testing efficiency.
Fourth, the apparatus structure of the present invention is simple, manufacture is low with maintenance cost, practical.
Brief description of the drawings
Fig. 1 is the main structure diagram of the present invention；
Fig. 2 is Fig. 1 side structure schematic view；
Fig. 3 is that flame injection temperation of the present invention changes over time curve map.
Embodiment
Describe the performance of the present invention in detail with reference to embodiment, but they do not form limitation of the invention,
It is only for example.Simultaneously by illustrating that advantages of the present invention will become clearer and be readily appreciated that.
As depicted in figs. 1 and 2, silicon carbide refractory ceramics flame of the invention injection thermal shock experimental provision includes rectangular shape
Movable steel frame 1, the side of the steelframe 1, which has, to be used to enter burner 1.1, the steelframe 1 for what natural gas nozzle entered
Furnace wall 2 is provided with outside the side relative with entering burner 1.1, the top surface of the steelframe 1 is provided with the first refractory slab 3.1,
The top surface of the steelframe 1 is provided with the second refractory slab 3.2, and refractory slab is 25~30mm of thickness silicon nitride combined silicon carbide plate.
The top surface of first refractory slab 3.1 is provided with insulation fibre cotton layer 4, and insulation fibre cotton layer 4 is alumina silicate fibre, is about bedded in
At the top of cavity on the first refractory slab 3.1, the leakage of flame is prevented.Some pieces of bricks 5 to be measured are provided with the inwall of the steelframe 1.
It also includes the first tempilstick 6.1 and the second tempilstick 6.2, and the top surface of first tempilstick 6.1 and steelframe 1 hangs down
It is straight arrange and extend downwardly sequentially pass through insulation fibre cotton layer 4, the first refractory slab 3.1 stretches into the inner chamber of steelframe 1, to measure flame
Actual temperature.Second tempilstick 6.2 and the lateral surface of furnace wall 2 are arranged vertically, and the temperature of furnace wall 2 are measured, to prevent temperature mistake
It is high.The quantity of the brick to be measured 5 is 5~9 pieces, the brick 5 to be measured positioned at the side relative with entering the place side of burner 1.1 and
On the both sides adjacent with entering the place side of burner 1.1, brick 5 to be measured is T-shaped silicon carbide refractory ceramics.
A kind of application method of silicon carbide refractory ceramics flame injection thermal shock experimental provision of the present invention, comprises the following steps：
Step 1：The face natural gas nozzle of burner 1.1 will be entered by first moving steelframe 1 so that between steelframe 1 and natural gas nozzle
It is brought into close contact, then firing up, the flame temperature of natural gas nozzle is 1500~1700 DEG C, and power is 400~450kW, flame
It is as shown in Figure 3 that injection temperation changes over time curve map；
Step 2：Measured using the inner chamber temperature of the first tempilstick 6.1 measurement steelframe 1, while using the second tempilstick 6.2
The temperature of furnace wall 2, after 4 minutes durations of ignition, rectangular cavity body temperature is 1000 DEG C, and the temperature of furnace wall is 72 DEG C, internal-external temperature difference
For 928 DEG C；After 25 minutes durations of ignition, rectangular cavity body temperature is 1273 DEG C, the temperature of furnace wall is 774 DEG C, and internal-external temperature difference is
499 DEG C, stop working when temperature reaches setting value, thermal shock is realized in cooling；
Step 3：Room temperature is cooled to after flame-out, simulation thermal shock period effects of repeatedly stopping working after circulation igniting；
Step 4：Circulating cycle issue when visible crack occurs first in brick to be measured is recorded, the circulating cycle issue is to be measured as this
The thermal shock resistance index of brick.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (8)
1. a kind of silicon carbide refractory ceramics flame sprays thermal shock experimental provision, it is characterised in that：It is removable including rectangular shape
Formula steelframe (1), the side of the steelframe (1), which has, to be used to enter burner (1.1), the steelframe (1) for what natural gas nozzle entered
Furnace wall (2) is provided with outside the side relative with entering burner (1.1), the top surface of the steelframe (1) is provided with the first fire resisting
Plate (3.1), the top surface of the steelframe (1) are provided with the second refractory slab (3.2), and the top surface of first refractory slab (3.1) is set
There is insulation fibre cotton layer (4)；Some pieces of bricks (5) to be measured are provided with the inwall of the steelframe (1).
2. silicon carbide refractory ceramics flame according to claim 1 sprays thermal shock experimental provision, it is characterised in that：It is also wrapped
The first tempilstick (6.1) and the second tempilstick (6.2) are included, first tempilstick (6.1) and the top surface of steelframe (1) are arranged vertically
And extend downwardly and sequentially pass through insulation fibre cotton layer (4), the first refractory slab (3.1) stretches into the inner chamber of steelframe (1)；Described second surveys
Warm rod (6.2) and the lateral surface of furnace wall (2) are arranged vertically.
3. silicon carbide refractory ceramics flame according to claim 1 sprays thermal shock experimental provision, it is characterised in that：It is described to treat
The quantity for surveying brick (5) is 5~9 pieces, and the brick (5) to be measured is located at the side relative with entering burner (1.1) place side and is located at
On the both sides adjacent with entering burner (1.1) place side.
4. silicon carbide refractory ceramics flame according to claim 1 sprays thermal shock experimental provision, it is characterised in that：It is described to treat
It is T-shaped silicon carbide refractory ceramics brick to survey brick (5).
5. silicon carbide refractory ceramics flame according to claim 1 sprays thermal shock experimental provision, it is characterised in that：Described
One refractory slab (3.1) and the silicon nitride combined silicon carbide plate that the second refractory slab (3.2) is 25~30mm of thickness.
6. silicon carbide refractory ceramics flame according to claim 1 sprays thermal shock experimental provision, it is characterised in that：The guarantor
Warm cellucotton layer (4) is alumina silicate fibre layer.
A kind of 7. user of the silicon carbide refractory ceramics flame injection thermal shock experimental provision described in any one of claim 2~6
Method, it is characterised in that comprise the following steps：
Step 1：Burner (1.1) face natural gas nozzle will be entered by first moving steelframe (1) so that steelframe (1) and natural gas nozzle it
Between be brought into close contact, then firing up；
Step 2：Surveyed using the inner chamber temperature of the first tempilstick (6.1) measurement steelframe (1), while using the second tempilstick (6.2)
The temperature of furnace wall (2) is measured, is stopped working when temperature or heat time reach setting value, thermal shock is realized in cooling；
Step 3：After flame-out, simulation thermal shock period effects of repeatedly stopping working after circulation igniting；
Step 4：Circulating cycle issue when visible crack occurs first in brick to be measured is recorded, the circulating cycle issue is as the brick to be measured
Thermal shock resistance index.
8. the application method of silicon carbide refractory ceramics flame injection thermal shock experimental provision according to claim 7, its feature
It is, in the step 1, the flame temperature of natural gas nozzle is 1500~1700 DEG C, and power is 400~450kW.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696371A (en) * | 2019-02-28 | 2019-04-30 | 中国科学院力学研究所 | A kind of flame thermal shock test observation device and observation method |
| CN109932383A (en) * | 2018-11-22 | 2019-06-25 | 江苏康姆罗拉特种陶瓷有限公司 | A kind of refractory filter for installation |
| CN110208131A (en) * | 2019-06-12 | 2019-09-06 | 武汉科技大学 | A kind of flexible brick box and its application method suitable for the detection of refractory brick thermal shock resistance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5567640A (en) * | 1978-11-17 | 1980-05-21 | Kawasaki Steel Corp | Thermal shock test method for refractory and its unit |
| CN101776556A (en) * | 2010-03-02 | 2010-07-14 | 武汉科技大学 | Testing device for high temperature thermal shock resistance of refractory material and application method thereof |
| CN204649556U (en) * | 2015-04-09 | 2015-09-16 | 中钢集团洛阳耐火材料研究院有限公司 | The thermal shock resistance evaluating apparatus of fire resistive material molded article |
| CN205403489U (en) * | 2016-03-12 | 2016-07-27 | 南京上元分析仪器有限公司 | Door and book curtain fire resistance testing stove |
-
2017
- 2017-08-23 CN CN201710729023.XA patent/CN107576586A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5567640A (en) * | 1978-11-17 | 1980-05-21 | Kawasaki Steel Corp | Thermal shock test method for refractory and its unit |
| CN101776556A (en) * | 2010-03-02 | 2010-07-14 | 武汉科技大学 | Testing device for high temperature thermal shock resistance of refractory material and application method thereof |
| CN204649556U (en) * | 2015-04-09 | 2015-09-16 | 中钢集团洛阳耐火材料研究院有限公司 | The thermal shock resistance evaluating apparatus of fire resistive material molded article |
| CN205403489U (en) * | 2016-03-12 | 2016-07-27 | 南京上元分析仪器有限公司 | Door and book curtain fire resistance testing stove |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932383A (en) * | 2018-11-22 | 2019-06-25 | 江苏康姆罗拉特种陶瓷有限公司 | A kind of refractory filter for installation |
| CN109932383B (en) * | 2018-11-22 | 2024-06-04 | 康姆罗拉有限公司 | Refractory ceramic filter device |
| CN109696371A (en) * | 2019-02-28 | 2019-04-30 | 中国科学院力学研究所 | A kind of flame thermal shock test observation device and observation method |
| CN110208131A (en) * | 2019-06-12 | 2019-09-06 | 武汉科技大学 | A kind of flexible brick box and its application method suitable for the detection of refractory brick thermal shock resistance |
| CN110208131B (en) * | 2019-06-12 | 2024-04-19 | 武汉科技大学 | Flexible brick box suitable for detecting thermal shock resistance of refractory bricks and use method thereof |
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Application publication date: 20180112 |