CN105627774A - Sight glass - Google Patents
Sight glass Download PDFInfo
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- CN105627774A CN105627774A CN201610203464.1A CN201610203464A CN105627774A CN 105627774 A CN105627774 A CN 105627774A CN 201610203464 A CN201610203464 A CN 201610203464A CN 105627774 A CN105627774 A CN 105627774A
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- Prior art keywords
- pipe
- sight glass
- expansion cone
- cone pipe
- rib
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/02—Observation or illuminating devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Glass Melting And Manufacturing (AREA)
- Furnace Details (AREA)
Abstract
A sight glass mainly comprises a sight glass assembly and a glass barrel connected with the sight glass assembly. The material state in a hearth can be observed through the sight glass assembly and the glass barrel of the sight glass. The glass barrel comprises a sight expanding cone pipe and a pipe fitting which are made of different materials. The upper end of the sight expanding cone pipe is obliquely arranged in a refractory material layer of a furnace kiln in the connection manner that the lower end of the pipe fitting is coaxially sleeved with the upper end of the sight expanding cone pipe. The sight expanding cone pipe is of a hollow tapered structure, and a tapered opening of the sight expanding cone pipe inclines downwards and points to the interior of the hearth. Compared with a sight glass without a sight expanding cone pipe, the sight range of the material state, observed from a sight glass lens of the sight glass, in the furnace kiln is larger and wider; and through the sight glass, the working state of materials in the high-temperature furnace kiln can be observed clearly and safely, the right process operation is facilitated, and the sight glass plays an important role in optimizing process conditions, saving energy, reducing consumption and preventing environment pollution.
Description
Technical field
The present invention relates to a kind of wide visual field high-temperature observation visor device, particularly relate to the wide visual field sight glass device for High-temp. kiln.
Background technology
At present, in various High-temp. kiln device, due to the substance characteristics of the hot environment in equipment and material, people to be understood the state of the art of material, what mostly take is simulate original operational condition under cold conditions environment, observe at the manhole/hand hole/flame-observing hole place opened, and make a reservation for observations, revise process conditions. Also have some stove kiln be observe High-temp. kiln in working order under stove in situation take a risk repeatedly to open flame-observing hole and carry out operating process observation, bring much safety and the problem of environmental protection aspect therefrom. Just due to high temperature service exacting terms, be difficult to correctly to judge facility at high temperature whether scaling loss, material at high temperature whether flow as expected, whether block, the phenomenon such as thawing, the more important thing is that people to be paid close attention to whether it can bring the problems such as too high energy consumption, contaminate environment.
Sight glass is a kind of device that can be used for directly observing material working order, is mainly used in oil, chemical industry and other industrial equipments. In order to observe the working order of device interior material clearly, selected visor sheet is generally silica glass or other material with certain light transmission, but these materials are by easily cracked when pressing uneven; So, when the internal pressure of equipment is greater than external pressure, device interior material may be caused to be ejected into device external by cracked sight glass, and when external pressure is greater than device interior pressure, then device external air etc. may enter into device interior, normal production all can be made to be forced to stop, time even serious, the serious accident such as leakage pollution or blast can be caused.
In addition, current normal glass visor, the use temperature of its regulation can only use mostly on the equipment of��300 DEG C. This just makes people hope be observed by visor, understanding high temperature industrial furnace kiln inner case is very limited. Namely, also current high temperature sight glass device lacks the effective measure of isolation stove kiln high temperature. Heat trnasfer is divided into three kinds of modes to comprise: thermal conduction, thermal convection and thermal radiation. Thermal conduction, refers at material without relative displacement, the heat energy transport phenomenon occurred when the object that interior of articles has differing temps or a differing temps directly contacts. Transmission of heat by convection, also known as thermal convection, refers to and relative displacement occurs, the heat transfer process caused by the mutual blending of cold fluid and hot fluid between the fluid each several part caused due to the macroscopic view motion of fluid. Thermal radiation is the heat transfer type that the form of a kind of object electromagnetic radiation is outwards distributed heat energy. It does not rely on any ambient conditions and carries out, and is the most effective heat transfer type in vacuum.
Chinese patent (publication No. is CN102565988A) discloses a kind of sight glass. The sight glass of this patent comprises visor seat, visor sheet and gland, visor seat is fixedly installed on its use equipment, and visor seat offered a host cavity, the front end of host cavity has opening, visor sheet is installed on the rear end of host cavity, gland is fixedly installed in the front end of visor seat, and it is covered on opening, and coordinate so that host cavity is a space closed with the aft end face of host cavity, wherein, sight glass also comprises a toughness pressure ring, and toughness pressure ring is fixedly installed in host cavity, and the both ends of the surface of toughness pressure ring are connected on gland and visor sheet respectively. The sight glass that this patent provides can make visor sheet uniform force, visor sheet can not be broken because of discontinuity, improve security and work-ing life that sight glass uses, but, it is installed on use equipment to the sight glass level of this patent, in addition this sight glass lacks the structure design expanding cone pipe so that the field range observed in equipment from visor sheet is limited. Meanwhile, the sight glass device of this patent lacks the technology feature effectively reducing heat transfer efficiencies, does not make effective provision for thermal insulation for the thermal conduction in heat transfer process, thermal convection and thermal radiation.
Summary of the invention
For the deficiency of prior art, the present invention provides a kind of sight glass for observing High Temperature Furnaces Heating Apparatus especially fluidized-bed inside, its lens barrel mainly comprising rearview mirror assemblies and being connected with described rearview mirror assemblies, the at least two-stage light guide portion being socketed each other that described lens barrel successively decreases by thermal conductivity is formed, wherein first step light guide portion at the upper limb of its opening uncovered in described High Temperature Furnaces Heating Apparatus lower than the lower rim of the view port of the described rearview mirror assemblies being directly connected with other light guide portion, wherein said rearview mirror assemblies also comprises at least one and inwardly introduces low-temperature airflow to form the cooling mechanism of gas barrier layer by hinge mechanism from external environment.
According to one preferred embodiment, described first step light guide portion is for expanding cone pipe, second stage light guide portion is pipe fitting, described expansion cone pipe is hollow taper structure, it is inner that the cone mouth direction of described expansion cone pipe is tilted to lower sensing burner hearth, the uncovered concordant or inner circle cutting opening being the bottom cone mouth of described expansion cone pipe and being formed on the inwall of refractory masses in described High Temperature Furnaces Heating Apparatus, and the axial line of described expansion cone tube and tube part and high-temperature burner hearth axial line are in same plane, so that the bottom cone mouth of described expansion cone pipe is concordant with the inwall of described refractory masses or inner circle to cut uncovered in the High Temperature Furnaces Heating Apparatus of generation be the elliptical openings along burner hearth radial direction depression.
According to one preferred embodiment, described expansion cone pipe upper end connects with the mode of connection of coaxial noose outside the bottom of described pipe fitting and tilts to be placed in the refractory masses of stove kiln, described expansion cone pipe upper port is positioned at described refractory masses center position, namely cone pipe and pipe fitting is expanded) socket interface is positioned at described refractory masses center position, and upper limb uncovered in described High Temperature Furnaces Heating Apparatus is lower than the lower rim of the view port of described rearview mirror assemblies.
According to one preferred embodiment, described cooling mechanism comprises for introducing low-temperature airflow process, when being negative pressure in described burner hearth, rotatably compress lid and the 2nd flange, at aforementioned two flanges, near compressing, the wedge-shaped crevice revolving the existence of lid end makes outside air can enter flange inner chamber and form gas barrier layer from the wedge-shaped crevice between described 2nd flange and described first flange to the first flange.
According to one preferred embodiment, the outer wall of the expansion cone pipe of described sight glass is provided with, along warp, latitude direction, the rib using identical material with described expansion cone pipe, at least comprise first through to rib and the 2nd through to rib, the first broadwise rib and the 2nd broadwise rib, and outwardly in the radial direction at described expansion cone pipe of the rib arranged through, latitude direction along described expansion cone pipe outer wall.
According to one preferred embodiment, described expansion cone pipe and described first through to rib, the 2nd through being made up to rib, the first broadwise rib and the 2nd broadwise rib of high temperature resistant corundum material, described first through to rib, the 2nd through being cylindrical rib to rib, the first broadwise rib and the 2nd broadwise rib, and be welded on described expansion cone pipe outer wall along through, latitude direction.
According to one preferred embodiment, described rearview mirror assemblies at least comprises the visor pipe nipple for welding with the upper end of described pipe fitting, revolves lid for observing the glass visor sheet of material state of arts in described burner hearth and the pressure strip and compression for working the effect of being fixed.
According to one preferred embodiment, described rearview mirror assemblies also comprises the first flange for playing connection and/or fastening effect, hinge, the 2nd flange, the 3rd flange, interior hexagon bolt and compresses hinge;
And for sealing the first pad of described glass visor sheet and the 2nd pad for sealing gap between described first flange and described 2nd flange;
The diameter of the described glass visor sheet formed by quartz glass plate is 100��150mm, thickness is 10��15mm.
According to one preferred embodiment, the angle that described expansion cone pipe and described pipe fitting tilt downwards is 15��60 ��; The cone angle that described expansion cone pipe is formed is 15��60 ��.
According to one preferred embodiment, described rearview mirror assemblies is connected to the upper end of described pipe fitting, and the position that described pipe fitting contacts with stove kiln housing connects with welding process, and the temperature in described burner hearth is 1350 DEG C and following.
The present invention has the following advantages:
This kind of sight glass device that the present invention proposes, its Advantageous Effects is:
1, for not doing the visor expanding cone pipe, the sight glass of the present invention is observed the visual field of stove kiln materials inside situation under high temperature working order from glass visor and is more strengthened and wide in range;
2, owing to unlike material heat conduction efficiency is different; the expansion cone pipe of sight glass lens barrel unlike material of the present invention and pipe fitting result in described sight glass lens barrel and have lower thermal conductivity; thus reduce the thermal conductivity that in burner hearth, heat transmits to sight glass, reach the object of better protection rearview mirror assemblies.
3, when stove kiln thorax is tiny structure, the 2nd flange and the first flange is made to revolve lid end generation wedge-shaped crevice at described two flanges near compressing owing to rotatably compressing lid, at the tiny structure environment of burner hearth, so that extraneous a small amount of air can enter flange inner chamber from the wedge-shaped crevice between described 2nd flange and described first flange, described air enters by miniflow gas barrier layer lower for formation temperature in the process of flange inner chamber, and then realizes the effect reducing described sight glass temperature.
4, the sight glass provided by the present embodiment, can be clear and observe safely the work situation of material in High-temp. kiln, is conducive to correct technological operation, to optimization processing condition, saves energy and reduce the cost, prevents environmental pollution from playing an important role.
Accompanying drawing explanation
Fig. 1 is the structural representation of the sight glass device of the present invention;
Fig. 2 is the structural representation of the sight glass device mesoscope flange seat of the present invention; With
Fig. 3 be the present invention sight glass device in high temperature resistant corundum expand cone pipe structural representation.
Reference numerals list
101: stove kiln housing 102: expand cone pipe 103: rearview mirror assemblies
104: pipe fitting 105: refractory masses 106: uncovered in High Temperature Furnaces Heating Apparatus
107: burner hearth 108: burner hearth axial line ��: cone angle
��: the angle 201 tilted downwards: visor pipe nipple 202: the first flange
203: hinge 204: the two flange 205: the three flange
206: interior hexagon bolt 207: glass visor sheet 208: pressing plate
209: compress and revolve lid 210: compress hinge 211: the first pad
212: the two pads 301: the first through to rib 302: the two through to rib
303: the first broadwise rib 304: the two broadwise ribs
Embodiment
It is described in detail below in conjunction with drawings and Examples.
The present invention provides the high temperature resistant sight glass device in a kind of wide visual field. State residing for material in High-temp. kiln can be observed outside equipment clearly by the transparent glass sheet on this device, it is thus possible to correct instructs technological operation, not occur environment, secure context to be had a negative impact because of erroneous judgement.
Fig. 1 shows the sight glass apparatus structure schematic diagram of the present invention, and it at least comprises expansion cone pipe 102, rearview mirror assemblies 103, pipe fitting 104. Described expansion cone pipe 102 is arranged on the kiln wall of High-temp. kiln to insert mode to declivity. The inner sleeve coordinating size of described pipe fitting 104 and described expansion cone pipe 102 coefficient of linear expansion different separately according to metallic substance and non-metallic material calculates to be determined, to reduce unnecessary gap. Described expansion cone pipe 102 is arranged in refractory masses 105. Described expansion cone pipe 102 realizes closely agreeing with connecting with the rib pouring material fire-resistant with described stove kiln arranged along cone pipe outer wall warp, broadwise, and described expansion cone pipe 102 becomes an angle being appropriate to observe with equipment axis. The top of described pipe fitting 104 is in position welded with described stove kiln housing 101, and its upper end is then welded with rearview mirror assemblies 103 again.
Expansion cone pipe 102 and pipe fitting 104 are hollow structure. The lower end of expansion cone pipe 102 is concordant with the inwall of refractory masses 105 or inner circle is cut so that sight glass is connected with burner hearth 107. The sight glass of the present invention directly communicates with high-temperature burner hearth 107, the technological process in stove kiln can be observed intuitively, safely from stove kiln outside when stove kiln is airtight, avoid in prior art and need repeatedly to open flame-observing hole for observing process condition in stove kiln, cause dust, airborne dust and cause the problem of environmental pollution; Can also avoid in prior art the blindness only carried out with the state of arts in imagination stove kiln operate bring safety, the problem such as environmental protection. On the other hand, when stove kiln is airtight, the technological process in stove kiln is observed intuitively, safely by the sight glass of the present invention, avoid and prior art makes because repeatedly opening flame-observing hole the outer gas of stove enter stove kiln so that the energy consumption in stove kiln increases, is unfavorable for the problem of optimization technological process.
According to a preferred implementation, outside expanding cone pipe 102 upper end, noose is in pipe fitting 104 lower port. Described expansion cone pipe 102 keep coaxial with pipe fitting 104 and with the structure of gradient. The angle [alpha] that expansion cone pipe 102 and pipe fitting 104 tilt downwards is 15��60 ��. This tilt angle alpha refers to the axis of sight glass and the angle of stove kiln housing 101 formation. Compared with the sight glass that horizontal direction is placed, the sight glass of the present invention is arranged in a downwardly inclined manner so that being directed at the object of observation, expansion range of observation. Preferably, the angle that expansion cone pipe 102 and pipe fitting 104 tilt downwards is 15 ��, 30 �� or 45 ��. More preferably, the angle that expansion cone pipe 102 and pipe fitting 104 tilt downwards is 45 ��. When described tilt angle alpha is 45, can ensure that the hertzian wave that in described burner hearth 107, thermal radiation process produces is coaxial with described expansion cone pipe 102 and described pipe fitting 104 to greatest extent, also it is exactly the contact area reducing described expansion cone pipe 102 and described pipe fitting 104 and thermal radiation hertzian wave to greatest extent, thus realizes the object reducing described sight glass temperature.
Described sight glass lens barrel comprises described expansion cone pipe 102 and described pipe fitting 104, and described expansion cone pipe 102 and described pipe fitting 104 are different composition material. Namely it is that described lens barrel is made up of the expansion cone pipe 102 of unlike material and pipe fitting 104. Owing to unlike material heat conduction efficiency is different; the expansion cone pipe 102 of sight glass lens barrel unlike material of the present invention and pipe fitting 104 result in described sight glass lens barrel and have lower thermal conductivity; thus reduce the thermal conductivity that in burner hearth 107, heat transmits to sight glass, reach the object of better protection rearview mirror assemblies 103.
Expand cone pipe 102 and pipe fitting 104 be socketed mode formed coaxial and during with the structure of gradient, the size expanding cone pipe 102 and pipe fitting 104 needs the coefficient of expansion different separately with non-metallic material according to the two metallic substance used to determine, to reduce unnecessary gap.
According to a preferred implementation, expanding cone pipe 102, to be formed as cone angle beta be that the structure of 15��60 �� is to expand the range of observation of sight glass. Preferably, the cone angle expanding cone pipe 102 formation is 15 ��, 30 �� or 45 ��. Expand the function that cone pipe 102 achieves visual field expansion with suitable cone angle.
According to a preferred implementation, expand cone pipe 102 and it is made up of high temperature resistant corundum material. Preferably, high temperature resistant corundum material is high temperature resistant chromium corundum material. The outer wall expanding cone pipe 102 is provided with many ribs along warp, latitude direction. Rib uses the material identical with expanding cone pipe 102. By arranging, along warp, latitude direction, the rib that size is suitable at the outer wall expanding cone pipe 102, it is possible not only to the Rigidity and strength strengthening expanding cone pipe 102, but also expansion cone pipe 102 can be made to realize closely being connected with the refractory masses 105 of stove kiln. Sight glass provided by the invention expands the thermal insulation of cone pipe 102 and the lower characteristic of thermal conductivity between described expansion cone pipe 102 and pipe fitting 104 in view of high temperature resistant corundum, and the part of pipe fitting 104 in stove kiln outside there will not be the temperature scalding staff.
As shown in Figure 2, rearview mirror assemblies 103 at least comprises the visor pipe nipple 201 for welding with the upper end of pipe fitting 104, revolves lid 209 for observing the glass visor sheet 207 of processing medium situation in burner hearth 107 and the pressure strip 208 and compression for working the effect of being fixed. Wherein, pipe fitting 104, visor pipe nipple 201, pressure strip 208 and compress and revolve lid and 209 be made up of high temperature resistant steel. Such as: 2520 stainless steels. 2520 stainless steels are owing to having higher chromium and nickel so that it has high temperature creep strength, at high temperature can continue operation, have good high thermal resistance. 2520 stainless steels are suitable for 1000 DEG C and following heat-resistant part. Glass visor sheet 207 is prefabricated and become by high temperature resistant silica glass. Silica glass has extremely low thermal expansivity and high temperature tolerance. The temperatures as high that silica glass can bear 1450 DEG C.
As shown in Figure 2, rearview mirror assemblies 103 also comprises the first flange 202, hinge 203, the 2nd flange 204, the 3rd flange 205, interior hexagon bolt 206 and compresses hinge 210. First flange 202, hinge 203, the 2nd flange 204, the 3rd flange 205, interior hexagon bolt 206 and compression hinge 210 connect and/or a fastening effect for rising. First flange 202, the 2nd flange 204, the 3rd flange 205 and interior hexagon bolt 206 are also made up of high temperature resistant steel. Such as: 2520 stainless steels or 316L stainless steel. Sight glass provided by the invention, in view of the rapidity opening flange soon, under the processing condition of tiny structure or normal pressure, it is possible to rotates around hinge axis and opens flange to carrying out some operation in stove kiln.
Rearview mirror assemblies 103 also comprises the first pad 211 and the 2nd pad 212. First pad 211 is for sealing glass visor sheet 207. The gap of 2nd pad 212 for sealing between the first flange 202 and the 2nd flange 204. First pad 211 and the 2nd pad 212 are made up of flexible materials. Such as: soft graphite. Compared to conventional seals materials such as asbestos, Mierocrystalline cellulose and matrix materials thereof, the first pad 211 being made up of soft graphite and the 2nd pad 212 have wide in range use temperature, and thermal expansivity is little. The first pad 211 being made up of soft graphite and the 2nd pad 212 at high temperature do not soften, do not wriggle.
According to a preferred implementation, the diameter of the glass visor sheet 207 formed by quartz glass plate is 100��150mm, thickness is 10��15mm. Preferably, the diameter of glass visor sheet 207 is 120mm, thickness is 12mm. Sight glass of the present invention glass visor sheet 207 used can be changed when needed. Only need to pull down the interior hexagon bolt 206 on the 3rd fastening flange 205 during replacing and take off the 3rd flange 205, then the glass visor sheet 207 replaced will be needed to take off. When glass visor sheet 207 after replacing is installed, it is necessary to check the 2nd flange 204, the 3rd flange 205 whether trim intact and the first pad 211 and the 2nd pad 212 whether intact, smooth.
According to a preferred implementation, it is 1350 DEG C and following stove kiln that sight glass can be used in temperature in burner hearth 107. Sight glass can also be used in burner hearth 107 pressure and be the stove kiln of tiny structure or normal pressure. The sight glass of the present invention can the service temperature of stove kiln lower than 1350 DEG C, pressure be tiny structure or normal pressure processing condition under clear, safety, observe state of arts in stove to environmental protection, can correctly judgment device at high temperature whether scaling loss, material at high temperature whether flow as expected, whether block, the phenomenon such as thawing.
According to a preferred implementation, when stove kiln thorax 107 is tiny structure, make described 2nd flange 204 revolve lid 209 ends at described two flanges near compressing with described first flange 202 to produce wedge-shaped crevices owing to rotatably compressing lid 209. Due to the tiny structure environment of burner hearth 107, so that extraneous a small amount of air can enter flange inner chamber from the wedge-shaped crevice between described 2nd flange 204 and described first flange 202, described air enters by miniflow gas barrier layer lower for formation temperature in the process of flange inner chamber, thus realizes the effect reducing described sight glass temperature. Namely, also the wedge-shaped crevice existing for hinge mechanism can import extraneous a small amount of air with the lower gas barrier layer of formation temperature, and the damage of the glass visor sheet 207 avoiding sight glass is played suitable effect.
As shown in Figure 3, the outer wall of described expansion cone pipe 102 is provided with many ribs along warp, latitude direction. And outwardly in the radial direction at described expansion cone pipe of the rib arranged through, latitude direction along described expansion cone pipe outer wall. Described expansion cone pipe 102 at least comprise first through to rib 301, the 2nd through to rib 302, first broadwise rib 303 and the 2nd broadwise rib 304. And aforementioned rib uses the material identical with expanding cone pipe 102.
According to one preferred embodiment, described expansion cone pipe 102 and described first through to rib 301, the 2nd through being made up to rib 302, first broadwise rib 303 and the 2nd broadwise rib 304 of high temperature resistant corundum material, described first through to rib 301, the 2nd through being cylindrical rib to rib 302, first broadwise rib 303 and the 2nd broadwise rib 304, and be welded on described expansion cone pipe outer wall along through, latitude direction.
By arranging, along warp, latitude direction, the rib that size is suitable at the outer wall expanding cone pipe 102, it is possible not only to the Rigidity and strength strengthening expanding cone pipe 102, but also expansion cone pipe 102 can be made to realize closely being connected with the refractory masses 105 of stove kiln.
Embodiment 1
The present embodiment observes high-temperature fluidized bed indoor material state for sight glass provided by the invention. The sight glass of the present invention is positioned on the sidewall of described high-temperature fluidized bed room. Fluidized reactor at least has combustion chamber and reaction chamber. Combustion chamber and reaction chamber are separated by injection arch. Injection arch is arranged on the top of combustion chamber. The high-temperature gas produced through burning in combustion chamber can spurt into reaction chamber by the flow path being arranged on injection arch. Spurt into reaction chamber high-temperature gas can in order to the solid particle material of reaction chamber is held up and carry out heat reaction.
Described fluidized-bed reactor by arranging injection arch at the top of combustion chamber, by the flow path of injection arch, the high temperature air jet that combustion chamber combustion produces is entered reaction chamber, the hot-gas temperature sprayed into can up to about 1350 DEG C, and the ore particles being enough to make reaction chamber is fluidized state. The ore particles of fluidized state is easier to the carrying out of reaction. In addition, compared with the gas distributor of plane shape, the high-temperature gas flow velocity encircleed by the injection of arch is relatively big, is enough to the ore particles held up in reaction chamber, it is ensured that ore particles reacts at reaction chamber. The sight glass of the present invention is positioned on the sidewall of described high-temperature fluidized bed room, can be used for observing the material state of described fluidized-bed reaction indoor, described fluidized-bed reactor can adjust material feeding speed in described combustion chamber combustion condition and reaction chamber based on the material state information observed by sight glass simultaneously, to ensure the abundant melting of described material and be in by picking-up state. Described material state information material whether becomes molten state and whether described material is in by picking-up state.
Described high-temperature fluidized bed device at least also comprises stove kiln housing 101, refractory masses 105 and burner hearth 107. Wherein, the technological temperature in burner hearth 107 is 1350 DEG C, and pressure is micro-vacuum state, is namely-500Pa��0Pa. Refractory masses 105 is combined by fire-resistant molding mass and refractory castable. Stove kiln housing 101 it is lining in refractory masses 105. The thickness of refractory masses 105 is 500��700mm. Refractory masses 105 also can be referred to as thermal insulation layer. When in burner hearth 107, temperature is about 1350 DEG C, by refractory masses 105 so that the decrease in temperature outside stove kiln housing 101 is about 50 DEG C.
Described sight glass at least comprises expansion cone pipe 102, rearview mirror assemblies 103 and pipe fitting 104. Rearview mirror assemblies 103 is welded in the upper end of pipe fitting 104. The upper end expanding cone pipe 102 is connected in inner sleeve mode with the bottom of pipe fitting 104. Expansion cone pipe 102 and pipe fitting 104 are arranged in the refractory masses 105 of stove kiln to insert mode to declivity. Expand cone pipe 102 cone mouth direction to be tilted to down.
Described lens barrel comprises the expansion cone pipe 102 and pipe fitting 104 that are made up of differing materials, and forms the material thermal conductivity �� of described expansion cone pipe 1021It is greater than the material thermal conductivity �� forming described pipe fitting 1042Described expansion cone pipe 102 upper end connects with the mode of connection of coaxial noose outside the bottom of described pipe fitting 104 and tilts to be placed in the refractory masses 105 of stove kiln, based on lens barrel by the described expansion cone pipe 102 of differing materials and the constructional feature of described pipe fitting 104 noose and the heat conduction feature of differing materials part, lens barrel described in the heat transfer process that heat carries out to described rearview mirror assemblies 103 in burner hearth 107 achieves the effect reducing heat conduction efficiency.
Described expansion cone pipe 102 is hollow taper structure, it is inner that the cone mouth direction of described expansion cone pipe 102 is tilted to lower sensing burner hearth 107, in described High Temperature Furnaces Heating Apparatus, uncovered 106 is the concordant or inner circle cutting opening that the bottom cone mouth of described expansion cone pipe 102 is formed on the inwall of refractory masses 105, and described expansion cone pipe 102 is in same plane with axial line and the high-temperature burner hearth axial line 108 of pipe fitting 104, so that the bottom cone mouth of described expansion cone pipe 102 is concordant with the inwall of described refractory masses 105 or inner circle to cut in the High Temperature Furnaces Heating Apparatus of generation uncovered 106 be the elliptical openings along burner hearth 107 radial direction depression. and two focuses of described ellipse are in horizontal direction, the semi-major axis being also namely oval is in horizontal direction, thus achieves the object that sight glass has the more wide visual field in the horizontal direction.
Burner hearth 107 temperature distribution based on described stove kiln is by the stove kiln bottom feature that upwards gradual temperature raises, the oval semi-major axis of described oval Jing Kou is in horizontal direction and decreases the thermal radiation area of described expansion cone pipe 102 by high-temperature region in burner hearth 107, help avoid high calorie region, burner hearth 107 upper end to the radiative transfer of sight glass, thus avoid the problem that sight glass is too heated when achieving the observing effect in the sight glass width visual field simultaneously.
Described expansion cone pipe 102 upper end connects with the mode of connection of coaxial noose outside the bottom of described pipe fitting 104 and tilts to be placed in the refractory masses 105 of stove kiln, described expansion cone pipe 102 upper port is positioned at described refractory masses 105 center position, namely expand cone pipe 102 and pipe fitting 104 socket interface and be positioned at described refractory masses 105 center position, and in described High Temperature Furnaces Heating Apparatus uncovered 106 upper limb lower than the lower rim of the view port of described rearview mirror assemblies 103.
Described cooling mechanism comprises for introducing low-temperature airflow process, when being negative pressure in described burner hearth 107, the 2nd flange 204 and the first flange 202 is made to revolve lid 209 end generation wedge-shaped crevice at aforementioned two flanges near compressing owing to rotatably compressing lid 209, extraneous a small amount of air is made to enter flange inner chamber from the wedge-shaped crevice between described 2nd flange 204 and described first flange 202, air enters by miniflow gas barrier layer lower for formation temperature in the process of flange inner chamber, thus realizes the effect reducing described sight glass temperature. Namely, also the wedge-shaped crevice existing for hinge mechanism can import extraneous a small amount of air with the lower miniflow gas barrier layer of formation temperature, and the damage of the glass visor sheet 207 avoiding sight glass is played suitable effect.
The position that pipe fitting 104 contacts with stove kiln housing 101 connects with welding process so that 104 being fixed on stove kiln housing 101 in pipe fitting. Expand cone pipe 102 and project the half that length in the horizontal direction is refractory masses 105 thickness. The length of pipe fitting 104 in stove kiln housing 101 outside is 150��220mm, and the length projection of pipe fitting 104 in refractory masses 105 length in the horizontal direction is also the half of refractory masses 105 thickness. The angle [alpha] that expansion cone pipe 102 and pipe fitting 104 tilt downwards is 45 ��. When described tilt angle alpha is 45 ��, can ensure that the hertzian wave that in described burner hearth 107, thermal radiation process produces is coaxial with described expansion cone pipe 102 and described pipe fitting 104 to greatest extent, also it is exactly the contact area reducing described expansion cone pipe 102 and described pipe fitting 104 and thermal radiation hertzian wave to greatest extent, thus realizes the object reducing described sight glass temperature.
The cone angle beta expanding cone pipe 102 is 20 ��. The internal diameter of pipe fitting 104 is less than the internal diameter expanding cone pipe 102 upper end. Specifically, the internal diameter of pipe fitting 104 is 100mm, is 110mm with the internal diameter of the expansion cone pipe 102 of pipe fitting 104 bottom inner sleeve.
It is in the High-temp. kiln of tiny structure or normal pressure in 1350 DEG C and following and burner hearth 107 that the sight glass of the present embodiment can be used in temperature in burner hearth 107, the sight glass provided by the present embodiment, can be clear and observe safely the work situation of material in High-temp. kiln. On the other hand, the sight glass of the present embodiment by with suitable angle by pipe fitting and expand the cone pipe insertion High-temp. kiln refractory masses in, observe material working process in High-temp. kiln with can realizing the wide visual field, be conducive to correct technological operation, to optimizing processing condition, save energy and reduce the cost, prevent environmental pollution from playing an important role.
It should be noted that; above-mentioned specific embodiment is exemplary; those skilled in the art can find out various solution under the inspiration of the disclosure of invention, and these solutions also all belong to the open scope of the present invention and fall within protection scope of the present invention. Those skilled in the art are it is to be appreciated that specification sheets of the present invention and accompanying drawing thereof are explanation property and not form limitations on claims. Protection scope of the present invention by claim and etc. jljl limit.
Claims (10)
1. for observing a sight glass for High Temperature Furnaces Heating Apparatus especially fluidized-bed inside, its lens barrel mainly comprising rearview mirror assemblies (103) and being connected with described rearview mirror assemblies (103), it is characterised in that,
At least two-stage light guide portion being socketed each other that described lens barrel successively decreases by thermal conductivity is formed, wherein first step light guide portion is at the upper limb of its opening uncovered (106) in described High Temperature Furnaces Heating Apparatus lower than the lower rim of the view port of the described rearview mirror assemblies (103) being directly connected with other light guide portion, and wherein said rearview mirror assemblies (103) also comprises at least one and inwardly introduces low-temperature airflow to form the cooling mechanism of gas barrier layer by hinge mechanism from external environment.
2. sight glass as claimed in claim 1, it is characterized in that, described first step light guide portion is for expanding cone pipe (102), second stage light guide portion is pipe fitting (104), described expansion cone pipe (102) is hollow taper structure, it is inner that the cone mouth direction of described expansion cone pipe (102) is tilted to lower sensing burner hearth (107), concordant or the inner circle cutting opening that in described High Temperature Furnaces Heating Apparatus, uncovered (106) the bottom cone mouth for described expansion cone pipe (102) is formed on the inwall of refractory masses (105), and described expansion cone pipe (102) is in same plane with axial line and the high-temperature burner hearth axial line (108) of pipe fitting (104), so that the bottom cone mouth of described expansion cone pipe (102) is concordant with the inwall of described refractory masses (105) or inner circle to cut uncovered (106) in the High Temperature Furnaces Heating Apparatus of generation be the elliptical openings along burner hearth (107) radial direction depression.
3. sight glass as claimed in claim 2, it is characterized in that, described expansion cone pipe (102) upper end connects with the mode of connection of coaxial noose outside the bottom of described pipe fitting (104) and tilts to be placed in the refractory masses (105) of stove kiln, described expansion cone pipe (102) upper port is positioned at described refractory masses (105) center position, namely expansion cone pipe (102) and pipe fitting (104) socket interface are positioned at described refractory masses (105) center position, and the upper limb of uncovered in described High Temperature Furnaces Heating Apparatus (106) is lower than the lower rim of the view port of described rearview mirror assemblies (103).
4. sight glass as claimed in claim 1, it is characterized in that, described cooling mechanism comprises for introducing low-temperature airflow process, when being negative pressure in described burner hearth (107), rotatably compress lid (209) and the 2nd flange (204), at aforementioned two flanges, near compressing, the wedge-shaped crevice revolving lid (209) end existence makes outside air can enter flange inner chamber and form gas barrier layer from the wedge-shaped crevice between described 2nd flange (204) and described first flange (202) to the first flange (202).
5. sight glass as described in one of Claims 1-4, it is characterized in that, the outer wall of expansion cone pipe (102) of described sight glass is provided with, along warp, latitude direction, the rib using identical material with described expansion cone pipe (102), at least comprise first through to rib (301) and the 2nd through to rib (302), the first broadwise rib (303) and the 2nd broadwise rib (304), and outwardly in the radial direction described expansion cone pipe (102) of the rib arranged through, latitude direction along described expansion cone pipe (102) outer wall.
6. sight glass as claimed in claim 5, it is characterized in that, described expansion cone pipe (102) and described first through to rib (301), the 2nd through being made up to rib (302), the first broadwise rib (303) and the 2nd broadwise rib (304) of high temperature resistant corundum material, described first through to rib (301), the 2nd through being cylindrical rib to rib (302), the first broadwise rib (303) and the 2nd broadwise rib (304), and be welded on described expansion cone pipe (102) outer wall along through, latitude direction.
7. sight glass as claimed in claim 1, it is characterized in that, described rearview mirror assemblies (103) at least comprises the visor pipe nipple (201) for welding with the upper end of described pipe fitting (104), revolves lid (209) for observing glass visor sheet (207) of the interior material state of arts of described burner hearth (107) and the pressure strip (208) and compression for working the effect of being fixed.
8. sight glass as claimed in claim 5, it is characterized in that, described rearview mirror assemblies (103) also comprises the first flange (202) for playing connection and/or fastening effect, hinge (203), the 2nd flange (204), the 3rd flange (205), interior hexagon bolt (206) and compresses hinge (210);
And for sealing first pad (211) of described glass visor sheet (207) and the 2nd pad (212) for sealing gap between described first flange (202) and described 2nd flange (204);
The diameter of described glass visor sheet (207) formed by quartz glass plate is 100mm��150mm, thickness is 10mm��15mm.
9. sight glass as claimed in claim 2, it is characterised in that, the angle (��) that described expansion cone pipe (102) and described pipe fitting (104) tilt downwards is 15��60 ��; The cone angle (��) that described expansion cone pipe (102) is formed is 15��60 ��.
10. sight glass as claimed in claim 1, it is characterized in that, described rearview mirror assemblies (103) is connected to the upper end of pipe fitting (104), the position that described pipe fitting (104) contacts with stove kiln housing (101) connects with welding process, and the temperature in burner hearth (107) is 1350 DEG C and following.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810712878.6A CN109028993B (en) | 2016-04-01 | 2016-04-01 | Sight glass for observing inside of high-temperature furnace |
| CN201810721072.3A CN109114996B (en) | 2016-04-01 | 2016-04-01 | Lens barrel of peep hole |
| CN201610203464.1A CN105627774B (en) | 2016-04-01 | 2016-04-01 | Sight glass |
| CN201810712665.3A CN109059571B (en) | 2016-04-01 | 2016-04-01 | Cooling structure and cooling method of peep hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203464.1A CN105627774B (en) | 2016-04-01 | 2016-04-01 | Sight glass |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810721072.3A Division CN109114996B (en) | 2016-04-01 | 2016-04-01 | Lens barrel of peep hole |
| CN201810712878.6A Division CN109028993B (en) | 2016-04-01 | 2016-04-01 | Sight glass for observing inside of high-temperature furnace |
| CN201810712665.3A Division CN109059571B (en) | 2016-04-01 | 2016-04-01 | Cooling structure and cooling method of peep hole |
Publications (2)
| Publication Number | Publication Date |
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| CN105627774A true CN105627774A (en) | 2016-06-01 |
| CN105627774B CN105627774B (en) | 2018-08-10 |
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| CN201810712878.6A Active CN109028993B (en) | 2016-04-01 | 2016-04-01 | Sight glass for observing inside of high-temperature furnace |
| CN201810721072.3A Active CN109114996B (en) | 2016-04-01 | 2016-04-01 | Lens barrel of peep hole |
| CN201810712665.3A Active CN109059571B (en) | 2016-04-01 | 2016-04-01 | Cooling structure and cooling method of peep hole |
| CN201610203464.1A Active CN105627774B (en) | 2016-04-01 | 2016-04-01 | Sight glass |
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| CN201810712878.6A Active CN109028993B (en) | 2016-04-01 | 2016-04-01 | Sight glass for observing inside of high-temperature furnace |
| CN201810721072.3A Active CN109114996B (en) | 2016-04-01 | 2016-04-01 | Lens barrel of peep hole |
| CN201810712665.3A Active CN109059571B (en) | 2016-04-01 | 2016-04-01 | Cooling structure and cooling method of peep hole |
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Cited By (1)
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|---|---|---|---|---|
| CN107044653A (en) * | 2017-06-16 | 2017-08-15 | 大唐国际发电股份有限公司北京高井热电厂 | A kind of flue observes device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113822862B (en) * | 2021-09-06 | 2023-08-01 | 中南大学 | Online full-intelligent self-maintenance device and method for high-temperature industrial endoscope of industrial kiln |
| CN114484875B (en) * | 2021-09-14 | 2023-11-10 | 沭阳华新玻璃科技股份有限公司 | Stress high temperature resistance-based single-layer glass high temperature monitoring device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109028993A (en) | 2018-12-18 |
| CN109028993B (en) | 2020-04-03 |
| CN109114996B (en) | 2020-01-03 |
| CN109114996A (en) | 2019-01-01 |
| CN109059571A (en) | 2018-12-21 |
| CN109059571B (en) | 2020-09-04 |
| CN105627774B (en) | 2018-08-10 |
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Address after: 610041 No. 2, Keyuan four road, hi tech Zone, Chengdu, Sichuan, China 202 Applicant after: Sichuan Mingxin Energy Group Co.,Ltd. Address before: No. four, No. 2, Chengdu high tech park, Sichuan Province Applicant before: SICHUAN MINGXIN INVESTMENT Co.,Ltd. |
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Effective date of registration: 20180718 Address after: 610041 No. 2, Keyuan four road, hi tech Zone, Chengdu, Sichuan, China 202 Applicant after: Sichuan Mingxin Energy Group Co.,Ltd. Applicant after: SICHUAN LEIBO MINGXIN CHEMICAL Co.,Ltd. Address before: 610041 No. 2, Keyuan four road, hi tech Zone, Chengdu, Sichuan, China 202 Applicant before: Sichuan Mingxin Energy Group Co.,Ltd. |
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Address after: 610041 No. 2, Keyuan four road, hi tech Zone, Chengdu, Sichuan, China 202 Co-patentee after: Leibo Mingxin Industrial Development Co.,Ltd. Patentee after: Sichuan Mingxin Energy Group Co.,Ltd. Address before: 610041 No. 2, Keyuan four road, hi tech Zone, Chengdu, Sichuan, China 202 Co-patentee before: SICHUAN LEIBO MINGXIN CHEMICAL Co.,Ltd. Patentee before: Sichuan Mingxin Energy Group Co.,Ltd. |