CN208075589U - High temperature furnace used inert gas purge device - Google Patents
High temperature furnace used inert gas purge device Download PDFInfo
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- CN208075589U CN208075589U CN201820551011.2U CN201820551011U CN208075589U CN 208075589 U CN208075589 U CN 208075589U CN 201820551011 U CN201820551011 U CN 201820551011U CN 208075589 U CN208075589 U CN 208075589U
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- inert gas
- high temperature
- temperature furnace
- pipe group
- evaporator
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Abstract
The utility model is related to high temperature furnace used inert gas purge device, include the bilobed wheel circulating pump containing circular chamber and power house, the inert gas circulation pipe group that is connect with circular chamber, the gas cleaning plant being installed in inert gas circulation pipe group, the water steam pipe group being connect with power house, the condenser being installed in water steam pipe group and the evaporator for being connected to water steam pipe group end；Inert gas circulation pipe group and high temperature furnace internal switching；The evaporator is vertically arranged in the insulating sandwich in high temperature furnace.Its utilize high temperature furnace body surplus heat inert gas circulation power, avoid high temperature furnace the direct loss with surplus heat, be effectively improved the utilization rate of ontology heat, and then improve the overall utilization rate of the equipment energy；By the circularly purifying to inert gas, avoids and need to be continually fed into fresh inert gas in traditional handicraft to maintain the problem that inert gas dosage is excessive caused by inert atmosphere, to be effectively saved process costs.
Description
Technical field
The utility model is related to graphite felt production equipment fields, and in particular to high temperature furnace used inert gas purge device.
Background technology
Graphite felt, as the key performance component of flow battery, its final product quality is influenced including service life, electronics
A series of important performance characteristic of flow batteries including conducting power, electrolyte isolating power etc..
In general, using the method for high temperature cabonization, to size is cut on demand polyacrylonitrile base carbon in high temperature furnace
The raw materials felt such as felt or viscose base charcoal felt carries out high-temperature process to obtain graphite felt.Here high-temperature process, generally refers to 100
Temperature in high temperature furnace is promoted to 2000~2500 DEG C by the heating rate of~300 DEG C/h, then naturally cools to 100 DEG C again
High-temperature processing technology.Because being handled the raw material felt that bulk material is organic material under ultra-high temperature, need
Insulation blocking is carried out to raw material felt.Common insulation blocking means have vacuum protection and high purity inert gas protection.Vacuum protection,
It forms vacuum environment by detaching high temperature furnace inner air, has the characteristics that protecting effect is excellent, while also having high temperature
The effect of furnace interior dedusting removal of impurities；But vacuum protection has quite high requirement to the structural strength and sealing performance of furnace body,
Therefore the used usual cost of high temperature furnace is more expensive.High purity inert gas is protected, by high-purity lazy to being passed through inside high temperature furnace
Property gas exclude original air in stove, to artificially produce inert atmosphere in stove, and then realize to processed material
Protection；It is not high to the sealing performance and Structural strength calls of furnace body due to being ventilated into stove；But raw material are by height
In warm processing procedure, the hetero atoms such as internal carbon, nitrogen can escape into different forms band inert gas in, while raw material be heated it is swollen
It is swollen to cause surface microstructure the deviate from fine solid particle that bursts apart that also be mixed into inert gas；If removing not in time above-mentioned miscellaneous
Matter, it is most likely that damaging molding graphite felt surface texture, cause its surface property to decline, and then influence it
Application effect in flow battery.
The existing high temperature furnace that high-temperature process protection is carried out using inert gas, is generally used that continuous to be passed through fresh high-purity lazy
Property gas realize the cleaning of furnace inner environment to replace the mode of impure inert gas in stove, and then ensure the finished product of graphite felt
Quality.But the above method is very big to the dosage of high purity inert gas, and due to high purity inert gas higher price, largely make
Steeply rising for production cost is necessarily caused in the case of, in the case where not recycled to inert gas even far more than
The burden that vacuum protection brings furnace body cost.Meanwhile during above-mentioned inert gas replacement, the energy of conveying equipment used is logical
It is often external electric energy, this also maintains to increase energy burden outside energy needed for high temperature in high temperature furnace；And the high warm of high temperature furnace itself
Can remove outside the live part that is absorbed by raw material felt, most of absorbed by other component and distribute, therefore high temperature furnace this height
Warm can there is also the not high phenomenons of utilization rate.
Utility model content
The utility model provides high temperature furnace used inert gas purge device, high-purity to solve in existing graphite felt production
Inert gas dosage is excessive, the high temperature heat underutilization of high temperature furnace body problem.
The technical solution adopted in the utility model is as follows：
High temperature furnace used inert gas purge device, the inert gas purge device includes containing circular chamber and power house
Bilobed wheel circulating pump, the inert gas circulation pipe group being connect with circular chamber, the gas being installed in inert gas circulation pipe group are net
Makeup sets, the water steam pipe group that is connect with power house, the condenser being installed in water steam pipe group and is connected to water
The evaporator of vapour-cycling pipe group end；The inert gas circulation pipe group and high temperature furnace internal switching；The evaporator is vertical
It is installed in the insulating sandwich in high temperature furnace.
The operation principle and process of the technical program are as follows：
High temperature furnace used inert gas purge device described in the technical program needs to recycle from inert gas before start-up operation
Guan Zuzhong be continually fed into high purity inert gas until place in advance raw material felt to be handled and good seal high temperature furnace chamber,
Air in inert gas circulating line group and bilobed wheel circulating pump circular chamber is replaced completely, then to water steam pipe
Group is passed through suitable water.After completing above-mentioned work, the temperature of high temperature furnace chamber is made according to the design high-temperature processing technology of graphite felt
It gradually rises.With the temperature rise of high temperature furnace chamber, raw material felt receive high-temperature process obtain simultaneously, from high temperature furnace chamber escape to
The heat of insulating sandwich makes the temperature of insulating sandwich also rise therewith.At this point, being passed through by water steam pipe group and enter
Evaporator in water by insulating sandwich heat up caused by heat and be evaporated to vapor.The vapor hoarded in evaporator
High pressure is generated due to volume expansion, starts that the water in water steam pipe group is pushed to be moved.Following cycle is to evaporator
In water equally heated be evaporated to vapor and further promote cycle.When the vapor of volume expansion reaches bilobed wheel cycle
When the power house of pump, the indoor impeller rotation of steam pressure propulsion power that the former generates, on the one hand vapor be driven to follow
Water in endless tube group is recycled, and on the other hand the impeller in circular chamber is driven to follow rotation.Near impeller in circular chamber
Negative pressure is generated with the rotation of impeller, to extract inert gas slightly in the inert gas circulation pipe group of distant place and by the latter from leaf
The other end of wheel is thrown away, to drive inert gas to start the cycle over.It is set to inert gas cycle when inert gas circulates through
When gas cleaning plant in pipe group, the activated adoption layer, metal reaction layer, wet matter for being successively arranged at gas cleaning plant are anti-
Solution layer adsorbing and removing is answered to deepen generated dust, sulfur-containing impurities, nitrogen-containing impurity with raw material felt high-temperature process, to realization pair
The purification of inert gas, and then ensure that the property of can be recycled of inert gas.In addition, the water as water steam Guan Zuzhong steams
After gas starts normal circulation, condensation process is carried out to vapor by being set to the condenser in water steam pipe group so that
It liquefies rapidly by the vapor of condenser.In liquefaction process, since the condensed Cheng Shuihou volumes of original vapor significantly subtract
It is few, to produce stronger suction function at condenser both ends.Under the pulling of above-mentioned suction function, water steam pipe group
Steam system accelerate cycle so that the power house impeller accelerated service to rotate under vapor impetus, to increase
The big slewing rate of circular chamber impeller, and then accelerate following for inert gas in the inert gas tube group acted on by the impeller
Ring speed.Since the circulation rate of inert gas increases, increased by gas cleaning plant purification amount of inert gas in the unit interval,
This new old replacement rate for allowing for inert gas in high temperature furnace is speeded, to further ensure high temperature furnace chamber inert gas
The quality of atmosphere, so as to avoid because the pollution of inert gas institute may caused by graphite felt final product quality decline the problem of.
From above-mentioned operation principle and in the process as can be seen that high temperature furnace used inert gas purge described in the technical program
Device is used as the circulation power of inert gas by high temperature furnace ontology heat, and this avoids scripts to complete raw material felt high-temperature process
Surplus heat afterwards directly in such a way that heat is transmitted in loss to air and caused by energy waste problem, be effectively improved height
The utilization rate of warm furnace body heat.At the same time, the purification to inert gas is completed among inert gas cyclic process.This
Sample, it is only necessary to carried out before starting high-temperature process high purity inert gas pour into air replacement operator, can continue to protect
The high quality inert gas shielding atmosphere inside high temperature furnace is held, efficiently avoids needing to be continually fed into traditional handicraft fresh lazy
Property gas maintain the problem that inert gas dosage is excessive caused by inert atmosphere, to from high purity inert gas usage amount
Angle has significantly saved the process costs of high-temperature process operation.
Further, the inert gas circulation pipe group includes air inlet pipe and an air outlet pipe；Gas cleaning plant is installed on out
On tracheae, and close to the junction of escape pipe and high temperature furnace.Gas cleaning plant is disposed in proximity in escape pipe and high temperature
The junction of stove can make full use of high temperature heat entrained when outmoded inert gas is excluded from inside high temperature furnace, to profit
Promote impurity in outmoded inert gas and the various reaction intervals reacted between adsorbate that are arranged in gas cleaning plant with high temperature
Degree, effectively improves removing catharsis of the gas cleaning plant to outmoded impurity in inert gas.
Further, the air inlet pipe is connected at the top of high temperature furnace with high temperature furnace inside；The escape pipe is from high temperature furnace
It is connected to inside bottom and high temperature furnace.Overhead air inlet pipe, bottom set the design scheme of escape pipe, can make full use of inert gas dead weight
Greatly, the characteristic easily sunk, effectively promoted to the outmoded inert gas in high temperature furnace inside and its metathesis with impurity, to
Further ensure the high quality inert gas shielding atmosphere inside high temperature furnace.
Further, the water steam pipe group includes water inlet pipe and steam outlet pipe；Condenser is installed on water inlet pipe.Through
Repetition test proves, when condenser is installed on water inlet pipe, is relatively installed in the other positions of water steam pipe group, condensation
Generated vacuum effect has maximum speedup effect to water steam.
Further, the water inlet pipe is connect with evaporator lower ending opening；The steam outlet pipe and evaporator upper end opening
Connection.Above-mentioned design takes full advantage of the characteristics of vapor spontaneous rising, further improves the cycle efficieny of vapor, increases
Its driving effect to circulating pump improves inert gas cycle to further increase the cycle rate of inert gas
The effect of displacement and purification.
Further, the evaporator is the evaporation coil helically risen around the vertical central axes of high temperature furnace.Use coil pipe
On the one hand formula evaporator increases the heating surface area of intraluminal fluid state water compared with the evaporator of other forms, fully improve its evaporation
Effect, to ensure that the Steam Actuation pressure of the required abundance of water steam；On the other hand, also further water is utilized to steam
The characteristics of gas spontaneous rising, further improve the cycle efficieny of vapor.
Further, the evaporator is set to outside high temperature furnace chamber, the temperature in insulating sandwich is 300~1000 DEG C
In any region.In above-mentioned temperature range, it can either ensure the quick abundant evaporation of liquid water, be pushed away with the steam for providing enough
Dynamic pressure drives bilobed wheel circulating pump, and then ensures the cyclic process of inert gas.It also avoids simultaneously due to heating temperature
It is excessively high and hydrone is made to dissociate, the great increase of the latter's volume moment and cause the intense impact to water steam pipe group, to
It is effectively protected water steam pipe group, the instantaneous intense impact of the latter is reduced and causes the risk damaged.
In conclusion the advantageous effect of the utility model compared to the prior art is：
(1) the high temperature furnace used inert gas purge device described in the technical program is used as lazy by high temperature furnace ontology heat
Property gas circulation power, this avoids surplus heat of the script after completing raw material felt high-temperature process directly with heat transmit side
Energy waste problem caused by formula loss to air, is effectively improved the utilization rate of high temperature furnace ontology heat；
(2) purification to inert gas is completed among inert gas cyclic process；In this way, it is only necessary to start at high temperature
Pour into and air replacement operator of the preceding high purity inert gas of progress of reason, can continue to keep the high quality inside high temperature furnace
Inert gas shielding atmosphere efficiently avoids needing to be continually fed into fresh inert gas in traditional handicraft to maintain inert atmosphere
Caused by the excessive problem of inert gas dosage, to significantly saved from high temperature from the angle of high purity inert gas usage amount
The process costs of operation are managed, while also effectively having saved the high high purity inert gas resource of cost；
(3) reasonable in design, there is high working efficiency and job stability；
(4) in addition to gas cleaning plant needs periodically to carry out the replacement or reduction of internal active material, other structures have
Standby long-time steady operation under conditions of unmanned intervene, therefore its operation and maintenance cost is relatively low, is worth carrying out in the art
It is a wide range of to promote.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model high temperature stove inert gas purge device
Fig. 2 is the schematic side view of bilobed wheel circulating pump in the utility model
Fig. 3 is the appearance diagram of the utility model high temperature stove inert gas purge device
In figure label for：1- water inlet pipes, 2- bilobed wheel circulating pumps, 3- air inlet pipe, 4- steam outlet pipes, 5- insulating sandwich, 6- steam
Quotation pipe, 7- high temperature furnaces, the condensed water section of 8- water inlet pipes, 9- condensers, 10- gas cleaning plants, 11- escape pipes, 12- power
Room, 13- circular chambers.
Specific implementation mode
All features disclosed in this specification can be with any other than mutually exclusive feature and/or step
Mode combines.
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the Hes of Fig. 1~3
The utility model is described in further detail for specific embodiment.
Embodiment 1
The inert gas purge device 10 of high temperature furnace 7, the inert gas purge device 10 include containing 13 He of circular chamber
The bilobed wheel circulating pump 2 of power house 12, is installed on inert gas circulation pipe at the inert gas circulation pipe group being connect with circular chamber 13
Gas cleaning plant 10 in group, is installed in water steam pipe group the water steam pipe group being connect with power house 12
Condenser 9 and the evaporator for being connected to water steam pipe group end；It is connect inside the inert gas circulation pipe group and high temperature furnace 7
It is logical；The evaporator is vertically arranged in the insulating sandwich 5 in high temperature furnace 7.
Embodiment 2
Based on embodiment 1, in order to further increase the displacement efficiency of the outmoded inert gas with impurity in high temperature furnace chamber,
Following improvement is carried out：The inert gas circulation pipe group includes air inlet pipe 3 and escape pipe 11；Gas cleaning plant 10 is installed on
On escape pipe 11, and close to the junction of escape pipe 11 and high temperature furnace 7.The inert gas circulation pipe group includes air inlet pipe 3
With escape pipe 11；The air inlet pipe 3 is connected to from 7 top of high temperature furnace with 7 inside of high temperature furnace；The escape pipe 11 is from 7 bottom of high temperature furnace
Portion is connected to 7 inside of high temperature furnace.Gas cleaning plant is disposed in proximity to the junction in escape pipe and high temperature furnace, it can be abundant
Entrained high temperature heat when being excluded from inside high temperature furnace using outmoded inert gas, to promote outmoded indifferent gas using high temperature
Impurity in body and the various extents of reaction reacted between adsorbate being arranged in gas cleaning plant, effectively improve gas purification
Removing catharsis of the device to outmoded impurity in inert gas.
Embodiment 3
Based on embodiment 2, in order to further increase clean-up effect of the gas cleaning plant to outmoded inert gas, carry out
It is following to improve：The air inlet pipe 3 is connected to from 7 top of high temperature furnace with 7 inside of high temperature furnace；The escape pipe 11 is from 7 bottom of high temperature furnace
It is connected to 7 inside of high temperature furnace.Overhead air inlet pipe, bottom set the design scheme of escape pipe, can make full use of inert gas from it is great,
The characteristic easily sunk, effectively promoted to the outmoded inert gas in high temperature furnace inside and its metathesis with impurity, into
One step ensure that the high quality inert gas shielding atmosphere inside high temperature furnace.
Embodiment 4
Based on embodiment 1 following improvement has been carried out in order to improve the cycle efficieny of vapor in steam circulating pipe group：Institute
It includes water inlet pipe 1 and steam outlet pipe 4 to state water steam pipe group；Condenser 9 is installed on water inlet pipe 1.It is proved through repetition test, when
It when condenser is installed on water inlet pipe, is relatively installed in the other positions of water steam pipe group, condenses generated negative pressure effect
Fruit has maximum speedup effect to water steam.
Embodiment 5
Based on embodiment 4, in order to further increase the cycle efficieny of vapor in steam circulating pipe group, as follows change
Into：The water inlet pipe 1 is connect with evaporator lower ending opening；The steam outlet pipe 4 is connect with evaporator upper end opening.Above-mentioned design is filled
The characteristics of vapor spontaneous rising point is utilized, further improves the cycle efficieny of vapor, increases it to circulating pump
Driving effect improves the effect of inert gas cyclic permutation and purification to further increase the cycle rate of inert gas
Fruit.
Embodiment 6
Based on embodiment 1 following improvement has been carried out in order to improve the evaporation efficiency of liquid water in steam circulating pipe group：Institute
It is the evaporation coil 6 helically risen around 7 vertical central axes of high temperature furnace to state evaporator.Using pipe-coil type evaporator, compared with other shapes
The evaporator of formula, on the one hand increases the heating surface area of intraluminal fluid state water, fully improves its evaporation effect, to ensure that water
The Steam Actuation pressure of the required abundance of vapour-cycling；On the other hand, the characteristics of vapor spontaneous rising is also further utilized,
Further improve the cycle efficieny of vapor.
Embodiment 7
Based on embodiment 1, in order to avoid hydrone while liquid water carries out effectively evaporation in steam circulating pipe group
It dissociates and the damage caused by circulation pipe group, has carried out following improvement：The evaporator is set to outside 7 inner cavity of high temperature furnace, is heat-insulated
In any region that temperature in interlayer 5 is 300~1000 DEG C.
The determination method for the regional extent that temperature is 300~1000 DEG C in above-mentioned insulating sandwich is as follows：It is not installing first
A series of temperature inductor is arranged in the insulating sandwich of the high temperature furnace of evaporator, to guarantee the temperature to insulating sandwich
Distribution carries out accurate vehicle.Then, above-mentioned high temperature furnace is subjected to empty stove heat to 2000 DEG C, then keeps high temperature.With height
Heat phase insulating sandwich in warm furnace chamber transmits, the Temperature Distribution in insulating sandwich along from close to high temperature furnace chamber side to remote
Direction from high temperature furnace chamber side shows the rule successively decreased, wherein insulating sandwich is close to the position of high temperature furnace chamber, temperature
The temperature being essentially identical in high temperature furnace chamber.After the Temperature Distribution in the insulating sandwich that temperature inductor detects is stablized,
Determine that temperature is 300~1000 DEG C of region in insulating sandwich according to the profiling temperatures after stabilization.Finally, this is selected
Any place in region is evaporated the installation of device.
In above-mentioned temperature range, it can either ensure the quick abundant evaporation of liquid water, to provide enough Steam Actuations
Pressure drives bilobed wheel circulating pump, and then ensures the cyclic process of inert gas.It also avoids simultaneously due to heating temperature mistake
It is high and hydrone is made to dissociate, the great increase of the latter's volume moment and cause the intense impact to water steam pipe group, to have
Water steam pipe group is protected to effect, the instantaneous intense impact of the latter is reduced and causes the risk damaged.
The specific implementation mode of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the application protection domain therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, under the premise of not departing from technical scheme design, various modifications and improvements can be made, these belong to this
The protection domain of application.
Claims (7)
1. high temperature furnace used inert gas purge device, it is characterised in that：The inert gas purge device (10) includes containing to follow
The bilobed wheel circulating pump (2) of ring casing (13) and power house (12), the inert gas circulation pipe group being connect with circular chamber (13), installation
In in inert gas circulation pipe group gas cleaning plant (10), connect with power house (12) water steam pipe group, installation
In in water steam pipe group condenser (9) and be connected to the evaporator of water steam pipe group end；The inert gas
Circulation pipe group and high temperature furnace (7) internal switching；The evaporator is vertically arranged in the insulating sandwich (5) in high temperature furnace (7).
2. high temperature furnace used inert gas purge device according to claim 1, it is characterised in that：The inert gas cycle
Pipe group includes air inlet pipe (3) and escape pipe (11)；Gas cleaning plant (10) is installed on escape pipe (11), and close to outlet
Manage the junction of (11) and high temperature furnace (7).
3. high temperature furnace used inert gas purge device according to claim 2, it is characterised in that：The air inlet pipe (3) from
It is connected to inside high temperature furnace (7) top and high temperature furnace (7)；The escape pipe (11) is internal from high temperature furnace (7) bottom and high temperature furnace (7)
Connection.
4. high temperature furnace used inert gas purge device according to claim 1, it is characterised in that：The water steam pipe
Group includes water inlet pipe (1) and steam outlet pipe (4)；Condenser (9) is installed on water inlet pipe (1).
5. high temperature furnace used inert gas purge device according to claim 4, it is characterised in that：The water inlet pipe (1) with
Evaporator lower ending opening connects；The steam outlet pipe (4) connect with evaporator upper end opening.
6. high temperature furnace used inert gas purge device according to claim 1, it is characterised in that：The evaporator is around height
The evaporation coil (6) that the vertical central axes of warm stove (7) helically rise.
7. high temperature furnace used inert gas purge device according to claim 1, it is characterised in that：The evaporator is set to
In any region that temperature outside high temperature furnace (7) inner cavity, in insulating sandwich (5) is 300~1000 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820551011.2U CN208075589U (en) | 2018-04-18 | 2018-04-18 | High temperature furnace used inert gas purge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820551011.2U CN208075589U (en) | 2018-04-18 | 2018-04-18 | High temperature furnace used inert gas purge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208075589U true CN208075589U (en) | 2018-11-09 |
Family
ID=64041985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820551011.2U Expired - Fee Related CN208075589U (en) | 2018-04-18 | 2018-04-18 | High temperature furnace used inert gas purge device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208075589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421162A (en) * | 2019-08-02 | 2019-11-08 | 金华中烨超硬材料有限公司 | The preparation process of combination grain composite polycrystal-diamond |
-
2018
- 2018-04-18 CN CN201820551011.2U patent/CN208075589U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421162A (en) * | 2019-08-02 | 2019-11-08 | 金华中烨超硬材料有限公司 | The preparation process of combination grain composite polycrystal-diamond |
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Granted publication date: 20181109 |
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