CN109812579A - Test drop tube furnace and its from cooling sealing device - Google Patents
Test drop tube furnace and its from cooling sealing device Download PDFInfo
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- CN109812579A CN109812579A CN201910179365.8A CN201910179365A CN109812579A CN 109812579 A CN109812579 A CN 109812579A CN 201910179365 A CN201910179365 A CN 201910179365A CN 109812579 A CN109812579 A CN 109812579A
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- 238000001816 cooling Methods 0.000 title claims abstract description 31
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Abstract
The invention discloses a kind of test drop tube furnace and its from cooling sealing device, it is related to test drop tube furnace field.Test drop tube furnace of the invention, include: reaction tube, feeder pipe, at least one secondary wind inleting tube, probe tube and from cooling sealing device, should include the separate heat pipe being made of heat pipe condenser section, heat pipe evaporator section one and heat pipe evaporator section two from cooling sealing device.It is an object of the invention to overcome the cooling device at existing test drop tube furnace upper sealing washer to run, the higher deficiency of maintenance cost, provide a kind of test drop tube furnace and its from cooling sealing device, run relative to traditional tap water circulating cooling mode, maintenance cost it is lower.
Description
Technical field
The present invention relates to test drop tube furnace fields, more specifically to a kind of test drop tube furnace and its certainly cooling
Sealing device.
Background technique
Coal is as the main non-renewable energy in China, and wherein coal fired power generation accounts for the 80% of total power generation, although with new energy
Source power generation, such as wind-power electricity generation, solar power generation more and more use, and coal fired power generation ratio is declined, but fire coal is still
The major part of total power generation is occupied, so we still need to pay attention to coal fired power generation and a series of pollutant rows of coal fired power generation bring
Put problem.According to " thermal power plant emission standards " (GB13223-2011), it is desirable that NOx、SO2With soot emissions limit value point
It Wei not 50mg/m3、35mg/m3、10mg/m3, minimum discharge policy implements in full in China.Correlation report shows that China exists at present
The NO that energy field generatesxPollutant discharge amount ranks first in the world, and thus bring problem of environmental pollution is quite severe.Therefore
The formation characteristic and migration mechanism of harmful substance during further investigation coal burning can be the cleaning of coal in actual industrial
Theoretical basis efficiently important using offer.
The design of one-dimensional drop tube furnace experimental provision, the combustion characteristics for fuel such as laboratory research coal dust and biomass provide
Good experiment porch, however be all close using seal washer between existing one-dimensional drop tube furnace reaction tube and upper lower disc
Envelope, now mostly using the seal washer of high-temperature flexible graphite folder metal material, although washer sealing effect is fine, resistance to height
Warm nature can be poor, and critical operating temperatures are no more than 800 DEG C, simultaneously because drop tube furnace works under high temperature environment, reacts tube temperature
Degree need to reach 1600 DEG C, need to cool down to washer, to guarantee the security performance of experiment and the authenticity and accuracy of experimental result.
But the hydronic mode coolant seal washer of tap water is substantially used in the prior art, cooling effect is poor, cooling time
Longer, water resource largely wastes, and operation, maintenance cost are higher.
About the cooling protection device at seal washer, has related art scheme in the prior art and disclose, such as patent
Publication number: CN101994075A, publication date: on 03 30th, 2011, invention and created name are as follows: rubber sheet gasketing gas cooling
Protective device, this application discloses a kind of rubber sheet gasketing gas cooling protection devices, the top setting at the top of furnace body
Large-scale cover board, furnace body top are equipped with the seal cavity of a groove type, rubber sheet gasketing are placed in seal cavity, in seal chamber
The cavity wall outer layer setting gas flow of body is equipped with air-flow through-hole to reduce seal cavity temperature on gas flow；Large-scale cover board
It is equipped with a downward projection of bell flange, which is hollow type to form airstream compartment, is equipped on large-scale cover board
With the air-flow through-hole of airstream compartment perforation.This application relies on half foamed silastic gasket, and gas is arranged in gasket seal periphery
Body runner reduces the cavity temperature directly contacted with gasket by gas flowing, makes gasket in suitable temperature range
Interior work effectively prevents rubber sheet gasketing easy the phenomenon that crossing heat ageing, reaches more satisfactory using effect.But
This application is disadvantageous in that: in order to maintain gasket to work within the scope of suitable temperature, being needed always in gas flow
It is passed through air-flow, operation, maintenance cost are higher.
In conclusion how to overcome the cooling device at existing test drop tube furnace upper sealing washer to run, maintenance cost
Higher deficiency is the technical problem of urgent need to resolve in the prior art.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome the cooling device at existing test drop tube furnace upper sealing washer to run, safeguard at
This higher deficiency provides a kind of test drop tube furnace and its from cooling sealing device, recycles relative to traditional tap water
Type of cooling operation, maintenance cost are lower.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
Test drop tube furnace of the invention, comprising:
Reaction tube, the outer surface of the reaction tube is around heating layer is provided with, and heating layer is enclosed in shell, shell inner surface
Insulating layer is filled between the heating layer outer surface；The upper end of the reaction tube extends on the outside of insulating layer, reaction tube
Upper end is connected with the first disk, which matches with the second disk on the upside of it, and the first disk and the second disk it
Between accompany seal washer one；At least two fastening bolts sequentially pass through from top to bottom after the second disk, the first disk with insulating layer
It is threadedly coupled, is combined with a fastening nut being located above the second disk at reaction tube upper end in each fastening bolt；It is described anti-
Should the lower end of pipe extend on the outside of insulating layer, the lower end of reaction tube is connected with third disk, the third disk and on the downside of it the
Four disks match, and accompany seal washer two between third disk and the 4th disk；At least two fastening bolts are from bottom to top
It is threadedly coupled after sequentially passing through the 4th disk, third disk with insulating layer, is combined in each fastening bolt at reaction tube lower end
One is located at the fastening nut below the 4th disk；
Feeder pipe, the feeder pipe enter reaction after sequentially passing through the second disk, seal washer one, the first disk from top to bottom
In pipe；
At least one secondary wind inleting tube, each secondary wind inleting tube sequentially pass through from top to bottom the second disk, seal washer one,
Enter in reaction tube after first disk；
Probe tube, the probe tube enter reaction after sequentially passing through the 4th disk, seal washer two, third disk from bottom to top
In pipe；
It and should include by heat pipe condenser section, heat pipe evaporator section one and heat from cooling sealing device from cooling sealing device
The separate heat pipe that pipe evaporator section two forms, the heat pipe condenser section are cylindrical shape, and the toroidal cavity in heat pipe condenser section is work
Mass flow circulation passage, the inner surface of each heat pipe condenser section are equipped with external screw thread, and the outer surface of each secondary wind inleting tube is equipped with external screw thread,
The outer surface thread of each secondary wind inleting tube is connected with a heat pipe condenser section being trapped among on the outside of the secondary wind inleting tube；The heat pipe steams
It sends out section one and the heat pipe evaporator section two is cylindrical shape, the toroidal cavity in heat pipe evaporator section one and heat pipe evaporator section two is work
Mass flow circulation passage, the heat pipe evaporator section one are trapped among the outside of seal washer one, and the heat pipe evaporator section two is trapped among seal washer
Two outside.
It further include the first gas tank and pulverizer coal feeder as further improvement of the present invention, the first gas tank passes through pipeline and gives
The connection of powder machine, the pipeline that the first gas tank is connected to pulverizer coal feeder are equipped with flowmeter and safety valve.
It further include at least two second gas tanks as further improvement of the present invention, all second gas tanks pass through respectively
Pipeline is connected to mixed gas tank, and flowmeter and safety valve are equipped on the pipeline that each second gas tank is connected to mixed gas tank, described mixed
Gas tank is connected to each secondary wind inleting tube respectively by pipeline.
As further improvement of the present invention, the lower end of probe tube is connected to one end of sampler, sampler it is another
End is successively connected to filter, safety valve by pipeline.
As further improvement of the present invention, the heating layer is connect with temperature control box.
As further improvement of the present invention, each heat pipe condenser section passes through a heat pipe connecting pipe respectively and heat pipe steams
It sends out section one to be connected to, heat pipe evaporator section one is connected to by a heat pipe connecting pipe with heat pipe evaporator section two.
As further improvement of the present invention, the inner surface of each secondary wind inleting tube is equipped with several fins.
As further improvement of the present invention, several fins are equipped in the working medium circulation passage of the heat pipe condenser section.
As further improvement of the present invention, it is filled in the heat pipe evaporator section one and the heat pipe evaporator section two
Silk screen.
Hair test drop tube furnace of the invention from cooling sealing device, including by heat pipe condenser section, heat pipe evaporator section one
The separate heat pipe formed with heat pipe evaporator section two, the heat pipe condenser section are cylindrical shape, the toroidal cavity in heat pipe condenser section
For working medium circulation passage, the inner surface of each heat pipe condenser section is equipped with external screw thread, and the outer surface of each secondary wind inleting tube is equipped with outer
Screw thread, the outer surface thread of each secondary wind inleting tube are connected with a heat pipe condenser section being trapped among on the outside of the secondary wind inleting tube；It is described
Heat pipe evaporator section one and the heat pipe evaporator section two are cylindrical shape, and the annular in heat pipe evaporator section one and heat pipe evaporator section two is empty
Chamber is working medium circulation passage, and the heat pipe evaporator section one is trapped among the outside of seal washer one, and the heat pipe evaporator section two is trapped among close
The outside of seal washer two.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
It include by heat pipe condenser section, heat pipe evaporator section one and two groups of heat pipe evaporator section from cooling sealing device in the present invention
At separate heat pipe, the separate heat pipe use separate structure, for working medium heat dissipation condensation segment be heat pipe condenser section, use
It is heat pipe evaporator section one and heat pipe evaporator section two in the evaporator section of working medium heat absorption, the seal washer one of reaction tube upper end is sentenced
And the heat at the seal washer two of reaction tube lower end is conducted to each secondary wind inleting tube, not only can guarantee seal washer one and close
Seal washer two works in reasonable temperature range, while can give in each secondary wind inleting tube the heat transmission absorbed and flow
Logical Secondary Air has recycled heat, and heat pipe heat exchanging is run relative to traditional tap water circulating cooling mode, maintenance cost more
It is low.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram that drop tube furnace is used in test in embodiment；
Fig. 2 is the schematic cross-sectional view in embodiment at reaction tube upper end；
Fig. 3 is the schematic cross-sectional view in embodiment at reaction tube lower end；
Fig. 4 is the schematic cross-sectional view (splitting along axial direction) of secondary wind inleting tube in embodiment；
Fig. 5 is the schematic cross-sectional view (splitting along axial direction) of heat pipe condenser section in embodiment；
Fig. 6 is the schematic cross-sectional view (radially splitting) of heat pipe evaporator section one in embodiment；
Fig. 7 is the structural schematic diagram of seal washer one in embodiment；
Fig. 8 is the structural schematic diagram of seal washer two in embodiment；
Fig. 9 is the flow chart of the application method of test drop tube furnace in embodiment.
Label declaration in schematic diagram: 1, the first gas tank；2, the second gas tank；3, flowmeter；4, safety valve；5, gas tank is mixed；
6, shell；7, insulating layer；8, heating layer；9, temperature control box；10, sampler；11, probe tube；12, filter；13, safety valve；14,
Pulverizer coal feeder；15, feeder pipe；16, seal washer two；17, heat pipe evaporator section two；18, fastening bolt；19, reaction tube；20, secondary
Blast pipe；21, heat pipe connecting pipe；22, fastening nut；23, the second disk；24, the first disk；25, seal washer one；26,
Heat pipe condenser section；27, heat pipe evaporator section one；2701, silk screen；28, third disk；29, the 4th disk.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Therefore, below to the embodiment of the present invention provided in the accompanying drawings
Detailed description be not intended to limit the range of claimed invention, but be merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
To further appreciate that the contents of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
With reference to Fig. 1-8, the test drop tube furnace of the present embodiment, comprising:
Reaction tube 19 (reaction tube 19 is made of quartz material and stands up among shell 6), the reaction tube 19 it is outer
Around being provided with heating layer 8, heating layer 8 is enclosed in shell 6 that (heating layer 8 can be fever for heating to reaction tube 19 on surface
Resistance wire), filled with insulating layer 7, (insulating layer 7 is for giving reaction tube 19 to protect between 8 outer surface of 6 inner surface of shell and heating layer
Temperature guarantees that temperature reaches requirement of experiment in reaction tube 19)；The upper end of reaction tube 19 extends to 7 outside of insulating layer, reaction tube 19
Upper end is connected with the first disk 24, which matches with the second disk 23 on the upside of it, and the first disk 24 and
Seal washer 1 is accompanied between two disks 23；Two fastening bolts 18 sequentially pass through the second disk 23, first circle from top to bottom
It is threadedly coupled after disk 24 with insulating layer 7, is combined with one in each fastening bolt 18 at 19 upper end of reaction tube and is located at the second disk 23
The fastening nut 22 of top, in use, two fastening nuts 22 are screwed to 23 direction of the second disk, thus by second
Disk 23, seal washer 1 and the first disk 24 closely force together, it is ensured that between the second disk 23 and the first disk 24
It is now effectively sealed；The lower end of reaction tube 19 extends to 7 outside of insulating layer, and the lower end of reaction tube 19 is connected with third disk 28, should
Third disk 28 is matched with the 4th disk 29 on the downside of it, and accompanies seal washer between third disk 28 and the 4th disk 29
2 16；Two fastening bolts 18 are threadedly coupled after sequentially passing through the 4th disk 29, third disk 28 from bottom to top with insulating layer 7,
A fastening nut 22 for being located at 29 lower section of the 4th disk is combined at 19 lower end of reaction tube in each fastening bolt 18, in use,
Two fastening nuts 22 are screwed to 29 direction of the 4th disk, thus by the 4th disk 29, seal washer 2 16 and
Three disks 28 closely force together, it is ensured that are now effectively sealed between the 4th disk 29 and third disk 28；
Feeder pipe 15, the feeder pipe 15 sequentially pass through the second disk 23, seal washer 1, the first disk 24 from top to bottom
Enter in reaction tube 19 afterwards；
At least one secondary wind inleting tube 20, each secondary wind inleting tube 20 sequentially pass through the second disk 23, sealing from top to bottom
Enter in reaction tube 19 after washer 1, the first disk 24；
Probe tube 11, the probe tube 11 sequentially pass through the 4th disk 29, seal washer 2 16, third disk 28 from bottom to top
Enter in reaction tube 19 afterwards and (probe tube 11 is fixed on different height in reaction tube 19 to collect in reaction tube 19 at different location
Powder after combustion reaction, and the tail gas generated that burns can also be discharged along probe tube 11)；
It and should include by heat pipe condenser section 26, heat pipe evaporator section 1 from cooling sealing device from cooling sealing device
The separate heat pipe formed with heat pipe evaporator section 2 17, heat pipe condenser section 26 are cylindrical shape, and the annular in heat pipe condenser section 26 is empty
Chamber is working medium circulation passage, and the inner surface of each heat pipe condenser section 26 is equipped with external screw thread, the outer surface of each secondary wind inleting tube 20
Equipped with external screw thread, the outer surface thread of each secondary wind inleting tube 20 is connected with a heat pipe cold for being trapped among 20 outside of secondary wind inleting tube
On the one hand solidifying section 26, the structure design of heat pipe condenser section 26 facilitate heat pipe condenser section 26 in the peace in 20 outside of secondary wind inleting tube
Dress, on the other hand expands the heat conductive contact area between heat pipe condenser section 26 and secondary wind inleting tube 20, effectively expands heat
Heat transfer efficiency between pipework condensation section 26 and secondary wind inleting tube 20；Heat pipe evaporator section 1 and heat pipe evaporator section 2 17 are cylinder
Shape, the toroidal cavity in heat pipe evaporator section 1 and heat pipe evaporator section 2 17 is working medium circulation passage, and heat pipe evaporator section 1 encloses
In the outside of seal washer 1, heat pipe evaporator section 2 17 is trapped among the outside of seal washer 2 16, heat pipe evaporator section 1 and heat
The structure of pipe evaporator section 2 17 designs, and on the one hand facilitates the installation of heat pipe evaporator section 1 and heat pipe evaporator section 2 17, another
Aspect heat pipe evaporator section 1 is trapped among the outside of seal washer 1 completely, heat pipe evaporator section 2 17 is trapped among seal washer two completely
16 outside can effectively radiate to seal washer 1 and seal washer 2 16；Wherein: each heat pipe condenser section 26 divides
Not Tong Guo a heat pipe connecting pipe 21 be connected to heat pipe evaporator section 1, heat pipe evaporator section 1 pass through a heat pipe connecting pipe 21
It is connected to heat pipe evaporator section 2 17, so that each heat pipe condenser section 26, heat pipe evaporator section 1 and heat pipe evaporator section 2 17
Between series connection it is integral, effectively play the effect of a complete heat pipe: gaseous working medium is in each heat pipe condenser section 26 after heat release
Become liquid then to flow into heat pipe evaporator section 1 and heat pipe evaporator section 2 17, liquid refrigerant is in heat pipe evaporator section 1 and heat
The 2 17 interior suction thermal evaporation of pipe evaporator section is gaseous state, and gaseous working medium reaches heat release in each heat pipe condenser section 26 again, reciprocal with this,
The phase transformation circulation for completing working medium, so that the heat at seal washer 1 and at seal washer 2 16 is constantly discharged；Each
The inner surface of secondary wind inleting tube 20 is equipped with several fins, increases the heat-transfer surface of Secondary Air Yu 20 inner surface of secondary wind inleting tube
Product, so that the heat convection of 20 outer surface of secondary wind inleting tube is more efficiently transferred to Secondary Air；The work of heat pipe condenser section 26
It is equipped with several fins in mass flow circulation passage, the heat exchange area of working medium Yu 26 inner surface of heat pipe condenser section is increased, to more increase
In the heat transfer to 26 side wall of heat pipe condenser section for issuing Working fluid phase changing of effect, be conducive to the high efficiency heat absorption of Secondary Air；Heat pipe
Silk screen 2701 is filled in evaporator section 1 and heat pipe evaporator section 2 17, the design of silk screen 2701 is conducive to heat pipe condenser section
The liquid refrigerant generated in 26 is adsorbed in heat pipe evaporator section 1 and in heat pipe evaporator section 2 17, consequently facilitating liquid refrigerant exists
Evaporation endothermic process in heat pipe evaporator section 1 and heat pipe evaporator section 2 17.
It include being evaporated by heat pipe condenser section 26, heat pipe evaporator section 1 and heat pipe from cooling sealing device in the present embodiment
The separate heat pipe of 2 17 composition of section, the separate heat pipe use separate structure, and the condensation segment for working medium heat dissipation is heat pipe
Condensation segment 26, for working medium heat absorption evaporator section be heat pipe evaporator section 1 and heat pipe evaporator section 2 17, will be on reaction tube 19
Heat at the seal washer 1 at end and at the seal washer 2 16 of 19 lower end of reaction tube is conducted to each secondary wind inleting tube
20, it not only can guarantee that seal washer 1 and seal washer 2 16 work in reasonable temperature range, while can will be inhaled
The heat transmission of receipts has recycled heat, and heat pipe heat exchanging is relative to tradition to the Secondary Air to circulate in each secondary wind inleting tube 20
Tap water circulating cooling mode run, maintenance cost it is lower.
Embodiment 2
The test drop tube furnace of the present embodiment, structure is substantially the same manner as Example 1, further: to further include first
Gas tank 1 and pulverizer coal feeder 14 (pulverizer coal feeder 14 is for adding burning powder into reaction tube 19), the first gas tank 1 is by pipeline and gives powder
Machine 14 is connected to, and the pipeline that the first gas tank 1 is connected to pulverizer coal feeder 14 is equipped with flowmeter 3 and safety valve 4, can pass through 3 He of flowmeter
Cooperating to control the supply amount of First air for safety valve 4, realizes effective control to experimental combustion process.
Embodiment 3
The test drop tube furnace of the present embodiment, structure is substantially the same manner as Example 2, further: to further include at least
Two the second gas tanks 2, all second gas tanks 2 are connected to by pipeline with mixed gas tank 5 respectively, and each second gas tank 2 connects with mixed gas tank 5
Flowmeter 3 and safety valve 4 are equipped on logical pipeline, mixed gas tank 5 is connected to each secondary wind inleting tube 20 respectively by pipeline, often
Different gas can be stored in a second gas tank 2, each second gas tank 2 can be controlled by the cooperation of flowmeter 3 and safety valve 4
The supply amount of interior gas, to form the controllable Secondary Air of gas content in mixed gas tank 5, realization has experimental combustion process
Effect control.
Embodiment 4
The test drop tube furnace of the present embodiment, structure is substantially the same manner as Example 3, further: probe tube 11
Lower end is connected to (sampler 10 is used for the powder after receiving combustion reaction in probe tube 11), sampler with one end of sampler 10
10 other end is successively connected to filter 12, safety valve 13 by pipeline, and filter 12 is for consolidating in filtration combustion tail gas
Body powder, safety valve 13 is for being discharged final combustion tail gas.
Embodiment 5
The test drop tube furnace of the present embodiment, structure is substantially the same manner as Example 4, further: heating layer 8 and temperature
It controls case 9 to connect, the heating power of heating layer 8 can be controlled by temperature control box 9 to effectively control the temperature in reaction tube 19, guaranteed
Experiment effectively carries out.
With reference to Fig. 9, the test of the present embodiment application method of drop tube furnace, comprising the following steps:
Step A: the test drop tube furnace is got out；
Step B: the outer surface thread connection one of each secondary wind inleting tube 20 is trapped among to the heat in 20 outside of secondary wind inleting tube
In pipework condensation section 26, heat pipe evaporator section 1 is trapped among to the outside of seal washer 1, heat pipe evaporator section 2 17 is trapped among gasket
2 16 outside is enclosed, each heat pipe condenser section 26 is connected to by a heat pipe connecting pipe 21 with heat pipe evaporator section 1 respectively, heat
Pipe evaporator section 1 is connected to by a heat pipe connecting pipe 21 with heat pipe evaporator section 2 17；
Step C: being heated by heating layer 8 to reaction tube 19, meanwhile, open the first gas tank 1 and the second gas tank 2, First air
It carries burning powder to enter in reaction tube 19 by feeder pipe 15, Secondary Air enters reaction tube 19 from each secondary wind inleting tube 20
Interior, burning powder starts to burn in reaction tube 19；
Step D: when 19 outside wall temperature of reaction tube reaches the start-up temperature of working medium in separate heat pipe, separate heat pipe is opened
Begin to start work and constantly by the heat transfer absorbed from seal washer 1 and seal washer 2 16 to each secondary air
The outer surface of pipe 20, then heat is absorbed by the Secondary Air passed through in each secondary wind inleting tube 20, so that seal washer 1
It works in certain temperature range with seal washer 2 16, protects seal washer 1 and seal washer 2 16, ensure that anti-
Should 19 upper and lower end of pipe connection leakproofness.
It is the separate heat pipe using phase-change heat-exchange from cooling sealing device, separate heat pipe is up in the present embodiment
It works under several hundred or even thousands of degrees Celsius, for cycle fluid, pure chemicals (silver, lithium, the sodium of Chang Xuanyong individual element form
And mercury), due to the limitation of experimental temperature, reaction tube 19 usually works at a temperature of 1000-1600 DEG C, and seal washer can be held
The maximum temperature received is not more than 800 DEG C, so selecting metal simple-substance sodium as cycle fluid, the work start-up temperature of metallic sodium is
600 DEG C, when 19 outside wall temperature of reaction tube reaches 600 DEG C, separate heat pipe is started to work, then constantly by seal washer 1
It is transmitted in the Secondary Air to circulate in each secondary wind inleting tube 20 with the heat at seal washer 2 16 by Working fluid phase changing heat exchange,
To play the effect of heating Secondary Air, the service efficiency of heat is increased, the waste of water resource is avoided, wherein shell 6 selects
With carbon steel or steel alloy, to guarantee the accuracy, authenticity and safety of experimental result.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. test drop tube furnace, characterized by comprising:
Reaction tube (19), around being provided with heating layer (8), heating layer (8) is enclosed in shell (6) for the outer surface of the reaction tube (19)
It is interior, insulating layer (7) are filled between shell (6) inner surface and the heating layer (8) outer surface；The upper end of the reaction tube (19)
It extends on the outside of insulating layer (7), the upper end of reaction tube (19) is connected with the first disk (24), first disk (24) and its upside
The second disk (23) match, and accompany seal washer one (25) between the first disk (24) and the second disk (23)；At least
Two fastening bolts (18) sequentially pass through the second disk (23), the first disk (24) from top to bottom and connect afterwards with insulating layer (7) screw thread
It connects, is combined with a fastening nut being located above the second disk (23) at reaction tube (19) upper end on each fastening bolt (18)
(22)；The lower end of the reaction tube (19) extends on the outside of insulating layer (7), and the lower end of reaction tube (19) is connected with third disk
(28), which matches with the 4th disk (29) on the downside of it, and third disk (28) and the 4th disk (29)
Between accompany seal washer two (16)；At least two fastening bolts (18) sequentially pass through the 4th disk (29), third from bottom to top
Disk (28) is threadedly coupled with insulating layer (7) afterwards, is combined with one on each fastening bolt (18) at reaction tube (19) lower end and is located at
Fastening nut (22) below 4th disk (29)；
Feeder pipe (16), the feeder pipe 15 sequentially pass through the second disk (23), seal washer one (25), the first disk from top to bottom
(24) enter in reaction tube (19) afterwards；
At least one secondary wind inleting tube (20), each secondary wind inleting tube (20) sequentially pass through the second disk (23), close from top to bottom
Seal washer one (25), the first disk (24) enter in reaction tube (19) afterwards；
Probe tube (11), the probe tube (11) sequentially pass through the 4th disk (29), seal washer two (16), third circle from bottom to top
Disk (28) enters in reaction tube (19) afterwards；
It and should include by heat pipe condenser section (26), heat pipe evaporator section one (27) from cooling sealing device from cooling sealing device
With the separate heat pipe of heat pipe evaporator section two (17) composition, the heat pipe condenser section (26) is cylindrical shape, heat pipe condenser section (26)
Interior toroidal cavity is working medium circulation passage, and the inner surface of each heat pipe condenser section (26) is equipped with external screw thread, each secondary air
The outer surface for managing (20) is equipped with external screw thread, and the outer surface thread of each secondary wind inleting tube (20) is connected with one and is trapped among the secondary air
Manage the heat pipe condenser section (26) on the outside of (20)；The heat pipe evaporator section one (27) and the heat pipe evaporator section two (17) are cylinder
Shape, the toroidal cavity in heat pipe evaporator section one (27) and heat pipe evaporator section two (17) are working medium circulation passage, the heat pipe evaporation
One (27) of section are trapped among the outside of seal washer one (25), and the heat pipe evaporator section two (17) is trapped among the outer of seal washer two (16)
Side.
2. test drop tube furnace according to claim 1, it is characterised in that further include the first gas tank (1) and pulverizer coal feeder
(14), the first gas tank (1) is connected to by pipeline with pulverizer coal feeder (14), on the pipeline that the first gas tank (1) is connected to pulverizer coal feeder (14)
Equipped with flowmeter (3) and safety valve (4).
3. test drop tube furnace according to claim 1, it is characterised in that further include at least two second gas tanks (2), institute
There is the second gas tank (2) to be connected to respectively by pipeline with mixed gas tank (5), the pipeline that each second gas tank (2) is connected to mixed gas tank (5)
On be equipped with flowmeter (3) and safety valve (4), the mixed gas tank (5) by pipeline respectively with each secondary wind inleting tube (20) even
It is logical.
4. test drop tube furnace according to claim 1, which is characterized in that the lower end and sampler (10) of probe tube (11)
One end connection, the other end of sampler (10) is successively connected to filter (12), safety valve (13) by pipeline.
5. test drop tube furnace according to claim 1, it is characterised in that: the heating layer (8) and temperature control box (9) are even
It connects.
6. test drop tube furnace according to claim 1, it is characterised in that: each heat pipe condenser section (26) passes through one respectively
Heat pipe connecting pipe (21) is connected to heat pipe evaporator section one (27), and heat pipe evaporator section one (27) passes through a heat pipe connecting pipe (21)
It is connected to heat pipe evaporator section two (17).
7. test drop tube furnace according to claim 6, it is characterised in that: the inner surface of each secondary wind inleting tube (20) is equal
Equipped with several fins.
8. test drop tube furnace according to claim 7, it is characterised in that: the working medium of the heat pipe condenser section (26) circulates
Several fins are equipped in channel.
9. test drop tube furnace according to claim 8, it is characterised in that: the heat pipe evaporator section one (27) and the heat
Silk screen (2701) are filled in pipe evaporator section two (17).
10. test drop tube furnace from cooling sealing device, which is characterized in that including by heat pipe condenser section (26), heat pipe evaporation
The separate heat pipe of one (27) of section and heat pipe evaporator section two (17) composition, the heat pipe condenser section (26) are cylindrical shape, heat pipe cold
Toroidal cavity in solidifying section (26) is working medium circulation passage, and the inner surface of each heat pipe condenser section (26) is equipped with external screw thread, each
The outer surface of secondary wind inleting tube (20) is equipped with external screw thread, and the outer surface thread of each secondary wind inleting tube (20) is connected with one and is trapped among this
Heat pipe condenser section (26) on the outside of secondary wind inleting tube (20)；The heat pipe evaporator section one (27) and the heat pipe evaporator section two (17)
It is cylindrical shape, the toroidal cavity in heat pipe evaporator section one (27) and heat pipe evaporator section two (17) is working medium circulation passage, described
Heat pipe evaporator section one (27) is trapped among the outside of seal washer one (25), and the heat pipe evaporator section two (17) is trapped among seal washer two
(16) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179365.8A CN109812579B (en) | 2019-03-07 | 2019-03-07 | Dropper furnace for test and self-cooling sealing device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179365.8A CN109812579B (en) | 2019-03-07 | 2019-03-07 | Dropper furnace for test and self-cooling sealing device thereof |
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| Publication Number | Publication Date |
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| CN109812579A true CN109812579A (en) | 2019-05-28 |
| CN109812579B CN109812579B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910179365.8A Active CN109812579B (en) | 2019-03-07 | 2019-03-07 | Dropper furnace for test and self-cooling sealing device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854506A (en) * | 2020-07-10 | 2020-10-30 | 武汉华喻燃能工程技术有限公司 | Air cooling radial limiting support |
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| CN101713284A (en) * | 2009-11-30 | 2010-05-26 | 大庆石油学院 | Over-long threaded heat pipe of sucker rod |
| CN105865854A (en) * | 2016-05-27 | 2016-08-17 | 北方民族大学 | Water cooling sampling gun of drop tube furnace |
| CN205843451U (en) * | 2016-04-06 | 2016-12-28 | 中国科学院工程热物理研究所 | A kind of antigravity heat pipe |
| CN109012555A (en) * | 2018-10-15 | 2018-12-18 | 武汉亚华电炉有限公司 | A kind of drop tube furnace |
| CN209762231U (en) * | 2019-03-07 | 2019-12-10 | 安徽工业大学 | Drop tube furnace for test and self-cooling sealing device thereof |
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2019
- 2019-03-07 CN CN201910179365.8A patent/CN109812579B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713284A (en) * | 2009-11-30 | 2010-05-26 | 大庆石油学院 | Over-long threaded heat pipe of sucker rod |
| CN205843451U (en) * | 2016-04-06 | 2016-12-28 | 中国科学院工程热物理研究所 | A kind of antigravity heat pipe |
| CN105865854A (en) * | 2016-05-27 | 2016-08-17 | 北方民族大学 | Water cooling sampling gun of drop tube furnace |
| CN109012555A (en) * | 2018-10-15 | 2018-12-18 | 武汉亚华电炉有限公司 | A kind of drop tube furnace |
| CN209762231U (en) * | 2019-03-07 | 2019-12-10 | 安徽工业大学 | Drop tube furnace for test and self-cooling sealing device thereof |
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| CN111854506A (en) * | 2020-07-10 | 2020-10-30 | 武汉华喻燃能工程技术有限公司 | Air cooling radial limiting support |
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| Publication number | Publication date |
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| CN109812579B (en) | 2024-02-27 |
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