CN108213639A - A kind of soldering oven heat-insulating circulating system - Google Patents
A kind of soldering oven heat-insulating circulating system Download PDFInfo
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- CN108213639A CN108213639A CN201611141957.3A CN201611141957A CN108213639A CN 108213639 A CN108213639 A CN 108213639A CN 201611141957 A CN201611141957 A CN 201611141957A CN 108213639 A CN108213639 A CN 108213639A
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- circulating line
- furnace body
- thermal insulation
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/04—Heating appliances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/085—Cooling, heat sink or heat shielding means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
A kind of soldering oven heat-insulating circulating system, including furnace body, circulating line and heating part, circulating line is set on the outside of furnace body, and is connected between the entrance of furnace body and outlet；Power plant is equipped between furnace body and circulating line；The both ends connection circulating line of the heating part；Gas after the heating of heating part is introduced the inner cavity of workpiece by power plant through circulating line, and the gas after heat exchange is flow in circulating line again from outlet, and circulating-heating is carried out to workpiece；The outer cover of the circulating line sets Packed thermal insulation casing.The present invention has efficient, lightweight, and heat insulation effect is good, and fault detection efficiency is high, and safe, workpiece is heated or is cooled uniformly, it is applied widely the advantages that.
Description
Technical field
The present invention relates to soldering tech field, particularly a kind of soldering oven heat-insulating circulating system.
Background technology
When hollow workpiece is heated or cooled in existing soldering oven, different devices is respectively adopted to work
The surface of part is heated, is cooled down, and usually to set multiple chambers in furnace body, such as heating chamber and cooling chamber so that furnace body knot
Structure is complicated, and volume is big, and weight is big, of high cost.In addition, workpiece surface generally use heating element carries out radiant type heating, heating
Slowly, workpiece surface uneven heating is even, needs that workpiece is delivered to cooling chamber cooling again after heating, it is impossible to disposable to complete to add
Hot and cold but, greatly improves the working time, reduces efficiency.
Invention content
A kind of efficient, lightweight is provided the purpose of the present invention is overcoming the above-mentioned insufficient of the prior art, heat insulation effect
Good, fault detection efficiency is high, and safe, workpiece is heated or is cooled uniformly, soldering oven heat-insulating circulating system applied widely.
The technical scheme is that：A kind of soldering oven heat-insulating circulating system, including furnace body, circulating line and heating part,
Circulating line is set on the outside of furnace body, and is connected between the entrance of furnace body and outlet；It is equipped between furnace body and circulating line dynamic
Power apparatus；The both ends connection circulating line of the heating part；Gas after the heating of heating part is drawn by power plant through circulating line
Enter the inner cavity of workpiece, the gas after heat exchange is flow in circulating line again from outlet, and circulating-heating is carried out to workpiece；It is described to follow
The outer cover in endless tube road sets Packed thermal insulation casing.
The present invention has the following advantages：
（1）It is efficient：Only by introducing hot gas into furnace body, so that it may workpiece disposably be completed to heat, shortened at workpiece
It manages the time, and the continuous circulating-heating of gas, heat utilization efficiency is high；
（2）Lightweight：By the way that heating part and circulating line to be set on to the outside of furnace body, can save other components in furnace body or
Structure design need not set any chamber in furnace body, need to only place workpiece, the smaller that the volume of furnace body can design, greatly
It is big to improve lightweight；
（3）Heat insulation effect is good：By being arranged the thermal insulation casing of sealing in the outside of circulating line, circulation pipe on the one hand can be prevented
Road is influenced to cause non-uniform temperature by external environment, and thermal insulation casing enables to gas to be heated evenly so that workpiece by
It is hot uniform, the power consumption of heating part can not only be reduced, moreover it is possible to shorten the holding time；On the other hand, it can prevent circulating line from dissipating
The heat of hair impacts external environment；
（4）Workpiece is heated evenly：By the way that hot gas is filled with workpiece lumen, compared to the outer surface of workpiece using radiant heating or
For the mode of cooling, on the one hand it can shorten heating time；On the other hand, hot gas can directly be full of workpiece lumen, make
Workpiece is heated evenly, does not greatly improve workpiece processing quality；
（5）It is applied widely：Heated from the inner cavity air inlet of workpiece, workpiece of different shapes can be suitable for, such as arc or
Other polymorphic structures are heated or cooled by pressing plate compression compared to existing, if workpiece shapes are special-shaped, are not easy to compress, this
Invention can greatly improve brazing quality.
Further, between the thermal insulation casing and circulating line be equipped with separate cavities, thermal insulation casing be equipped with for detect every
Pressure detector and control valve from cavity pressure.Why pressure detector and control valve are set, is because of hot gas cycle
The easy expanded by heating of gas in pipeline, pressure detector is by detecting the pressure change in separate cavities, whether to detect pipeline
Gas leakage, and ensure whether can occur to protect explosion, so as to environmental protection safety, when pressure increases to upper limit value, control valve will
It releases stress.
Further, the pressure detector is pressure gauge or pressure sensor；The control valve is vacuum valve or safety valve；
The control valve is identical with the quantity of pressure detector, and the installation site of control valve is set on pressure detector installation site
Side.Pressure gauge can directly read pressure value；Pressure signal is usually sent to central processing unit by pressure sensor, and aobvious
Show screen display pressure value；In order to simplify program, the present invention preferably pressure gauge detects the pressure in separate cavities.Vacuum valve
Sealing effect is better than safety valve, can prevent oxygen from entering separate cavities, therefore the preferred vacuum valve of the present invention.
Further, cooling end is further included, the cooling end respectively connect a circulating line with heating part, works independently,
It is independent of each other；Or the heating part and cooling end be connected to a circulating line two branch road, i.e., heating part branch and
Cooling end branch, heating part branch and cooling end branch road are equipped with valve；Or the heating part and cooling end are connected to one
Two branch road of circulating line, i.e. heating part branch and cooling end branch, heating part branch and cooling end branch connect
Place is equipped with preceding switching valve and rear switching valve, carries out the switching of hot gas path and cold air path.Wherein, preceding switching valve and rear switching valve
Preferably triple valve.
It is understood that the present invention can introduce hot gas to the inner cavity of workpiece to heat, the type of cooling is not
It limits whether in a manner that cold air cools down workpiece lumen；Certainly the present invention is preferably first using hot gas in workpiece
Chamber is heated, then workpiece lumen is cooled down using cold air, best results, is greatly improved the processing speed of workpiece, is carried
High brazing quality, reduction in the numbers of seconds.
Further, the pressure detector includes：
First pressure detector, on the thermal insulation casing in power plant exit, power plant is set on the outlet of furnace body with following
Between endless tube road；
Second pressure detector, on the thermal insulation casing at heater outlet；
Third pressure detector, on the thermal insulation casing of furnace body inlet.
Why pressure detector is distributed in different positions, is because this few place position shows there may be the temperature difference is big
As on the one hand illustrating thermal insulation casing there may be gas leakage to lead to non-uniform temperature, on the other hand illustrate that there are gas leakage for each valve
Lead to non-uniform temperature, by pressure detector, be capable of detecting when that each position with the presence or absence of failure, so as to fix a breakdown, carries
High-temperature uniformity, and then workpiece brazing quality is improved, shorten the holding time, reduce heating part power consumption.
Wherein, power plant can be high temperature draught fan or high-temperature pump etc..
Further, the valve or preceding switching valve, rear switching valve are set in airtight cavity, and the both sides of airtight cavity connect
Circulating line and thermal insulation casing are connect, the 5th pressure detector is equipped at the airtight cavity.Why each valve is set on closed
It is to improve heat insulating ability and leakproofness in cavity.Each valve can be detected with the presence or absence of failure by pressure detector, thus
It fixes a breakdown.
Further, the cooling end branch is equipped with the thermal insulation casing on the part pipeline of connection cooling end entrance,
The thermal insulation casing of the part is equipped with the 6th pressure detector and control valve.In the inlet of cooling end, thermal insulation casing is set,
Be in order to prevent heating after gas enter cooler before, heat is distributed into external environment and is impacted；Pass through
6th pressure detector can detect the part pipeline whether gas leakage etc..
Further, the furnace body is equipped with lighting-up tuyere, and pipeline connects between the circulating line and lighting-up tuyere in heating part exit
It is connected to explosion venting device.It can be lighted a fire at lighting-up tuyere by ignition, to detect with the presence or absence of oxygen in soldering oven, so as to arrange
Except oxygen, furnace chamber is made to be under non-oxygen environment.It is inflammable that explosion venting device can prevent the gas doping in furnace body or circulating line from having
Gas so as to generate explosion under high temperature environment, causes casualties and property loss, once generate explosion, explosion venting device energy
Enough releasing pressure automaticallies, improve safety coefficient.
Further, the part pipeline that lighting-up tuyere is connect with explosion venting device is equipped with the thermal insulation casing, the guarantor of the part
Warm sleeve is equipped with the 7th pressure detector and control valve.So as to prevent the gas after heating from distributing heat to external environment
In and impact；By the 7th pressure detector can detect the part pipeline whether gas leakage.
Further, the workpiece close to furnace body outlet the upper and lower sides of that one end and the furnace chamber of furnace body between be equipped with every
Plate.Gap between workpiece and furnace body outlet can be sealed by partition board, so that it is guaranteed that gas can only be from the inner cavity of workpiece
Furnace body outlet is flowed into, and cannot be flowed out from the gap up and down of workpiece, in such manner, it is possible to substantially reduce defect rate, improves gas profit
With rate.
Further, gas is one or more of nitrogen, hydrogen, argon gas, air mixed gas.
Further, the workpiece is that can make the hollow structure that gas flows in and out inside it.
Further, the heating part is heater, and cooling end is cooler.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention 1；
Fig. 2 is the structure diagram after 1 lag pipe of the embodiment of the present invention.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Embodiment 1
As depicted in figs. 1 and 2：A kind of soldering oven heat-insulating circulating system including furnace body 1, sets workpiece 2, workpiece 2 is in furnace body 1
The hollow structure that gas can be made to be flowed in and out inside it.The outside of furnace body 1 is equipped with heater 3 and cooler 4, heater 3
The entrance 11 of furnace chamber and outlet 12 are connected by circulating line 5 with cooler 4, heater 3 and cooler 4 are connected to a cycle
The two of two branch road of pipeline 5, i.e. heater branch 51 and cooler branch 52, heater branch 51 and cooler branch 52
Joint is held to be equipped with preceding electric T-shaped valve 53 and rear electric T-shaped valve 54, carries out the switching of hot gas path and cold air path, and
The valve opening of preceding electric T-shaped valve 53 and rear electric T-shaped valve 54 is adjustable, so as to adjust the flow of gas.Heater branch
The circulating line outer cover on road 51 sets Packed thermal insulation casing 8.Air inducing is equipped on rear side of the outlet of furnace body between circulating line 5
Machine 6 is forced to carry out gas circulation, and the flow velocity of gas can pass through the rotation speed regulating and controlling of air-introduced machine 6.
Separate cavities 81 are equipped between the circulating line of thermal insulation casing 8 and heater branch 51, thermal insulation casing 8 is equipped with and is used for
Detect the pressure gauge and vacuum valve of 81 pressure of separate cavities.Preceding electric T-shaped valve 53 and rear electric T-shaped valve 54 are set on closed chamber
In body 9, the both sides connection circulating line 5 and thermal insulation casing 8 of airtight cavity 9.Cooling end branch 52 is in connection cooler entrance
Also thermal insulation casing 8 is arranged on part pipeline, i.e., on the part pipeline between cooler entrance and rear electric T-shaped valve 54
It is arranged with thermal insulation casing 8.
Specifically, the thermal insulation casing 8 in 6 exit of air-introduced machine is equipped with pressure gauge PD1 and vacuum valve VA1, and pressure gauge PD1 is used
Pressure in detection air-introduced machine exit；Pressure gauge PD2 and vacuum valve VA2 is equipped at the airtight cavity 9 of electric T-shaped valve 54 afterwards,
Pressure gauge PD2 is used to detect the pressure at airtight cavity；On thermal insulation casing between cooler entrance and rear electric T-shaped valve 54
Equipped with pressure gauge PD3 and vacuum valve VA3, pressure gauge PD3 is used to detect the pressure of cooler inlet；Guarantor at heater outlet
Warm sleeve is equipped with pressure gauge PD4 and vacuum valve VA4, and pressure gauge PD4 is used to detect the pressure at heater outlet；Preceding electronic three
Pressure gauge PD5 and vacuum valve VA5 is equipped at the airtight cavity of port valve 53, pressure gauge PD5 is used to detect the pressure at airtight cavity；
The thermal insulation casing of furnace body inlet is equipped with pressure gauge PD6 and vacuum valve VA6, and pressure gauge PD6 is used to detect at furnace body entrance 11
Pressure.
Furnace body 1 is equipped with lighting-up tuyere 13, and pipeline, which is connected with, between the circulating line in heating part exit and lighting-up tuyere 13 lets out
Quick-fried device 7.Explosion venting device 7 is equipped with pressure port, once venting pressure is higher than pressure port, will be open-top by pressure port, so as to reach
To venting of dust explosion purpose.The lower end of lighting-up tuyere 13 is equipped with ignition, by controlling ignition automatic ignition, can exclude stove
Oxygen in body 1 makes furnace chamber be under non-oxygen environment and is brazed.The lower part of furnace body 1 is additionally provided with vacuum orifice 15；Furnace body 1
Side is equipped with gas input port 16.
Thermal insulation casing 8, the thermal insulation casing of the part are arranged on the part pipeline that lighting-up tuyere 13 is connect with explosion venting device 7
8 are equipped with pressure gauge PD7 and vacuum valve VA7, and pressure gauge PD7 is used to detect the venting pressure of furnace body 1.
Gas can be become hot gas by the heater 3 of the present embodiment, and gas can be become cold air by cooler 4, then
Hot gas or cold air are led to along circulating line 5 in furnace chamber by air-introduced machine 6, flow into the inner cavity of workpiece 2.Workpiece 2 is close
Outlet 12 that one end upper and lower sides and furnace chamber between be equipped with partition board 14, partition board 14 can will workpiece 2 and furnace body outlet between
Gap is sealed, so that it is guaranteed that gas can only flow into outlet 12 from the inner cavity of workpiece 2, and cannot be from the upper and lower sides of workpiece 2
It is flowed out in gap, in such manner, it is possible to substantially reduce defect rate.Gas through outlet 12 flows into circulating line 5, forms circulation canal.
The workpiece 2 of the present embodiment is specially tube core formula composite plate, and tube core formula composite plate includes top panel, lower panel and is set on
Therebetween die layer, die layer are alternatively arranged by several tube bodies and formed, and tube body can be pipe or polygonal tube.Now
Tube core formula composite plate is brazed so that be brazed between die layer and top panel, lower panel integral.The pricker of the present embodiment
Material is using copper-based.The gas of the present embodiment is nitrogen, and nitrogen is delivered to by High Purity Nitrogen gas tank at the air intake of air-introduced machine 6.
The operation principle of the present embodiment is：
（1）Tube core formula composite plate to be brazed is placed in furnace chamber；
（2）Protective gas is passed through into furnace chamber, tube core formula composite plate is made to be under non-oxygen environment, after being passed through protective gas, is passed through
Ignition automatic ignition is controlled, the oxygen in furnace body is excluded, furnace chamber is made indeed to be in non-oxygen environment, improves safety
Energy；
（3）Heater, and the E ends of preceding electric T-shaped valve and the A ends of rear electric T-shaped valve is controlled to switch to gas outlet D respectively
End and B ends make circulating line form hot gas path；
（4）Nitrogen leads to heater through air-introduced machine, and becomes hot nitrogen after the heating of heated device and enter heater branch, then edge heating
Device branch enters the entrance of furnace body, and after hot nitrogen enters furnace chamber, under the power effect of air-introduced machine, hot nitrogen enters tube core formula composite plate
Die layer, flow, heated in the gap of each tube body, make brazing filler metal melts and penetrate into top panel, lower panel, tube body
It is integral by being brazed between die layer and top panel, lower panel in matrix pore；And hot nitrogen is flowed from the gap of each tube body
Go out to heater branch, forced through air-introduced machine in heater branch internal circulation flow；
In the process, pressure gauge PD1 ~ PD7 detects the pressure value of position separate cavities in real time, understands for operating personnel
The pressure condition of circulating line, if once there is the pressure value of certain excessive, during more than upper limit value, the vacuum valve at the position
Will be open-top by air pressure, releasing pressure automatically, environmental protection safety.If detecting that the pressure of pipeline at this is less than lower limiting value, say
Open conduit gas leakage needs to carry out malfunction elimination.The setting of pressure gauge PD1 ~ PD7 can allow operating personnel to navigate to presence rapidly
At the position of gas leakage, rapidly removing faults.
（5）After the completion of soldering, tube core formula composite plate is cooled down, i.e.,：Close heater, and control before electric T-shaped valve E
End and the A ends of rear electric T-shaped valve switch to gas outlet F ends and C-terminal respectively, and circulating line is made to form cold air path；
（6）Nitrogen leads to cooler through air-introduced machine, and becomes cold nitrogen after cooler cools down and enter cooler branch, then edge cooling
Device branch enters furnace body entrance, and after cold nitrogen enters furnace chamber, under the power effect of air-introduced machine, cold nitrogen enters tube core formula composite plate
Die layer flows in the gap of each tube body, carries out cooling molding to the tube core formula composite plate after soldering, cold nitrogen is in cooler
Branch internal circulation flow, until being cooled to the standard of coming out of the stove.
In addition, the heater of the present embodiment can be directly heated to target temperature, can also stepped heating, i.e., first to pipe
Core type composite plate is preheated, then is stepped up temperature, to ensure that tube core formula composite plate is heated steadily, both can guarantee heating effect
Rate, and can guarantee brazing quality.
Embodiment 2
Difference lies in two branch roads that, heater and cooler are connected to a circulating line, i.e. heater with embodiment 1
Branch and cooler branch, the inlet of heater are equipped with the first motor-driven valve, and the inlet of cooler is equipped with the second motor-driven valve, and
The valve opening of two motor-driven valves is adjustable.When the first motor-driven valve is controlled to open, circulating line forms hot gas path；Work as control
When second motor-driven valve is opened, circulating line forms cold air path.
Heater branch road is arranged with the thermal insulation casing of sealing, and cooling end branch is in the part pipe of connection cooler entrance
Also thermal insulation casing is arranged on road.Two motor-driven valves are set in airtight cavity, the both sides of airtight cavity connection circulating line and
Thermal insulation casing.
On the thermal insulation casing in air-introduced machine exit, at airtight cavity, on the thermal insulation casing of cooler inlet, heater goes out
Pressure gauge and vacuum valve are equipped on thermal insulation casing at mouthful, on the thermal insulation casing of furnace body inlet.
Other structures are the same as embodiment 1.
Embodiment 3
Difference lies in heater and cooler respectively connect a circulating line, i.e. heater with embodiment 1 or embodiment 2
Pipeline and cooler pipeline, heater conduit are set on the upside of furnace body, and cooler pipeline is set on the downside of furnace body, and two pipelines are only
Vertical work, is independent of each other, two pipelines connect the entrance and exit of furnace chamber respectively, and heater conduit and cooler pipeline respectively connect
Air-introduced machine is connect, is delivered the gas in pipeline.
The inlet of heater is equipped with third motor-driven valve, and the inlet of cooler is equipped with the 4th motor-driven valve.
The setting of thermal insulation casing, pressure gauge and vacuum valve is the same as embodiment 2.
Other structures are the same as embodiment 1.
Embodiment 4
Difference lies in nitrogen is replaced by hydrogen with embodiment 1 or embodiment 2.
Other structures are the same as embodiment 1 or embodiment 2.
Embodiment 5
Difference lies in nitrogen is replaced by the gaseous mixture of nitrogen and pure air with embodiment 1 or embodiment 2.
Other structures are the same as embodiment 1 or embodiment 2.
Embodiment 6
Difference lies in the workpiece of the present embodiment is specially tube core formula composite plate, and tube core formula is compound with embodiment 1 or embodiment 2
Plate includes top panel, lower panel and set on die layer therebetween, and die layer is alternatively arranged by several tube bodies and formed, tube body
For the enclosed construction of inner hollow, tube body can be groove profile pipe, I-shaped pipe, angle-style pipe, T-shaped pipe, curved pipe or "-" type
Pipe；Soldering connects between tube body and top panel, lower panel.
Other structures are the same as embodiment 1 or embodiment 2.
Embodiment 7
Difference lies in workpiece is hollow arcuate structure with embodiment 1 or embodiment 2.
Other structures are the same as embodiment 1 or embodiment 2.
Embodiment 8
Difference lies in, workplace verticals to place with embodiment 1, by gripper mechanism grips workpiece, workpiece is made to be suspended in furnace chamber,
The two sides up and down of workpiece are penetrating so that gas enters the inner cavity in space from the two sides up and down of workpiece, realizes circulating heating
And cooling.
Other structures are the same as embodiment 1 or embodiment 2.
In conclusion the present invention has the following advantages：
（1）It is efficient：Only by introducing hot gas and cold air into soldering oven, so that it may workpiece disposably be completed to add hot and cold
But, work time piece period is shortened；
（2）Lightweight：By the way that heating part and cooling end to be set on to the outside of furnace body, other components or the knot in furnace body can be saved
Structure designs, and need not set any chamber in furnace body, need to only place workpiece, the smaller that the volume of furnace body can design, significantly
Improve lightweight；
（3）Heat insulation effect is good：By being arranged the thermal insulation casing of sealing in the outside of circulating line, circulation pipe on the one hand can be prevented
Road is influenced to cause non-uniform temperature by external environment, and thermal insulation casing enables to gas to be heated evenly so that workpiece by
It is hot uniform, the power consumption of heating part can not only be reduced, moreover it is possible to shorten the holding time；On the other hand, it can prevent circulating line from dissipating
The heat of hair impacts external environment；
（4）Fault detection efficiency is high：By setting pressure detector at different locations, operating personnel can be allowed to navigate to rapidly
At the position of gas leakage, rapidly removing faults；
（5）It is safe：Hot gas or the continuous circulating flowing of cold air, are not easy to make to generate larger pressure in furnace chamber, carry
High safety performance；By setting control valve, can the timely pressure release to separate cavities, improve safety coefficient；By being equipped on furnace body
Lighting-up tuyere can detect in soldering oven with the presence or absence of oxygen, so as to exclude oxygen, furnace chamber be made to be under non-oxygen environment；By setting
Explosion venting device is put, can prevent the gas doping in furnace body or circulating line from having inflammable gas, so as to generate under high temperature environment
Explosion, causes casualties and property loss, once generate explosion, explosion venting device can releasing pressure automatically, improve safety coefficient；
（6）Workpiece is heated or is cooled uniformly：By the way that hot gas or cold air are filled with workpiece lumen, compared to the outer surface to workpiece
For by the way of the radiant heating or cooling, it on the one hand can shorten and the time is heated or cooled；On the other hand, hot gas or cold
Gas can directly be full of workpiece lumen, and workpiece is made to be heated or be cooled evenly, greatly improves workpiece brazing quality；
（7）It is applied widely：It is heated and is cooled down from the inner cavity air inlet of workpiece, workpiece of different shapes can be suitable for, such as
Arc or other polymorphic structures are heated or cooled by pressing plate compression compared to existing, if workpiece shapes are special-shaped, are not easy to press
Tightly, the present invention can greatly improve brazing quality.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technology
Within, then the present invention also includes these modifications and variations.
Claims (10)
1. a kind of soldering oven heat-insulating circulating system, which is characterized in that including furnace body, circulating line and heating part, circulating line is set
In the outside of furnace body, and it is connected between the entrance of furnace body and outlet；Power plant is equipped between furnace body and circulating line；It is described
The both ends connection circulating line of heating part；Gas after the heating of heating part is introduced through circulating line in workpiece by power plant
Chamber, the gas after heat exchange are flow in circulating line again from outlet, and circulating-heating is carried out to workpiece；Outside the circulating line
Portion is arranged Packed thermal insulation casing.
2. soldering oven heat-insulating circulating system according to claim 1, which is characterized in that the thermal insulation casing and circulating line
Between be equipped with separate cavities, thermal insulation casing be equipped with for detect isolation cavity pressure pressure detector and control valve.
3. soldering oven heat-insulating circulating system according to claim 2, which is characterized in that the pressure detector is pressure gauge
Or pressure sensor；The control valve is vacuum valve or safety valve；The control valve is identical with the quantity of pressure detector, and
The installation site of control valve is set on the side of pressure detector installation site.
4. the soldering oven heat-insulating circulating system according to claims 1 or 2 or 3, which is characterized in that further include cooling end, institute
It states cooling end and a circulating line is respectively connect with heating part, work independently, be independent of each other；Or the heating part and cooling end
It is connected to two branch road of a circulating line, i.e. heating part branch and cooling end branch, heating part branch and cooling end branch
Road is equipped with valve；Or the heating part and cooling end are connected to two branch road of a circulating line, i.e. heating part
The joint of branch and cooling end branch, heating part branch and cooling end branch is equipped with preceding switching valve and rear switching valve, carries out heat
The switching of gas channel and cold air path.
5. soldering oven heat-insulating circulating system according to claim 4, which is characterized in that the pressure detector includes：
First pressure detector, on the thermal insulation casing in power plant exit, power plant is set on the outlet of furnace body with following
Between endless tube road；
Second pressure detector, on the thermal insulation casing at heater outlet；
Third pressure detector, on the thermal insulation casing of furnace body inlet.
6. soldering oven heat-insulating circulating system according to claim 5, which is characterized in that the valve or preceding switching valve,
Switching valve is set in airtight cavity afterwards, the both sides connection circulating line and thermal insulation casing of airtight cavity, at the airtight cavity
Equipped with the 5th pressure detector.
7. soldering oven heat-insulating circulating system according to claim 4, which is characterized in that the cooling end branch is cold in connection
But the part pipeline of portion's entrance is equipped with the thermal insulation casing, the thermal insulation casing of the part be equipped with the 6th pressure detector with
And control valve.
8. the soldering oven heat-insulating circulating system according to claims 1 or 2 or 3, which is characterized in that the furnace body is equipped with point
Burner, pipeline is connected with explosion venting device between the circulating line and lighting-up tuyere in heating part exit.
9. soldering oven heat-insulating circulating system according to claim 8, which is characterized in that the lighting-up tuyere connects with explosion venting device
The part pipeline connect is equipped with the thermal insulation casing, and the thermal insulation casing of the part is equipped with the 7th pressure detector and control
Valve.
10. the soldering oven heat-insulating circulating system according to claims 1 or 2 or 3, which is characterized in that the workpiece is close
Partition board is equipped between the upper and lower sides of that one end of furnace body outlet and the furnace chamber of furnace body；Or gas is nitrogen, hydrogen, argon gas, sky
One or more of gas mixed gas；Or the workpiece is that can make the hollow structure that gas flows in and out inside it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141957.3A CN108213639A (en) | 2016-12-12 | 2016-12-12 | A kind of soldering oven heat-insulating circulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141957.3A CN108213639A (en) | 2016-12-12 | 2016-12-12 | A kind of soldering oven heat-insulating circulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108213639A true CN108213639A (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611141957.3A Pending CN108213639A (en) | 2016-12-12 | 2016-12-12 | A kind of soldering oven heat-insulating circulating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114195372A (en) * | 2021-12-16 | 2022-03-18 | 重庆英诺维节能环保科技有限公司 | Annealing and cooling method of vacuum glass |
| CN116571831A (en) * | 2023-07-11 | 2023-08-11 | 成都国营锦江机器厂 | Welding tool, system and welding method for engine fuel manifold |
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| CN114195372A (en) * | 2021-12-16 | 2022-03-18 | 重庆英诺维节能环保科技有限公司 | Annealing and cooling method of vacuum glass |
| CN116571831A (en) * | 2023-07-11 | 2023-08-11 | 成都国营锦江机器厂 | Welding tool, system and welding method for engine fuel manifold |
| CN116571831B (en) * | 2023-07-11 | 2023-11-07 | 成都国营锦江机器厂 | Welding tool, system and welding method for engine fuel manifold |
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