CN206959566U - A kind of vacuum sintering furnace - Google Patents
A kind of vacuum sintering furnace Download PDFInfo
- Publication number
- CN206959566U CN206959566U CN201720883929.2U CN201720883929U CN206959566U CN 206959566 U CN206959566 U CN 206959566U CN 201720883929 U CN201720883929 U CN 201720883929U CN 206959566 U CN206959566 U CN 206959566U
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- pump
- valve
- sintering furnace
- pipeline
- knockout drum
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Abstract
The utility model provides a kind of vacuum sintering furnace, including sintering furnace, knockout drum, booster pump, sliding vane rotary pump, lobe pump, first slide valve pump and the second slide valve pump, connected between knockout drum and sintering furnace by pipeline, booster pump is connected by pipeline with knockout drum, sliding vane rotary pump is connected with booster pump and knockout drum respectively by a bipass, lobe pump is connected by pipeline with knockout drum, connected between first slide valve pump and lobe pump by pipeline, second slide valve pump is directly connected with knockout drum, booster pump is provided with main valve with separating on tank connected pipeline, lobe pump is provided with roughing valve with separating on tank connected pipeline, roughing valve is arranged in parallel with main valve.This vacuum sintering furnace can once be taken out in advance according to the actual requirement of work, secondary pre- be taken out and strong vacuum, it will not cause to vacuumize kinetic energy rejection during vacuumizing, sintering furnace is enabled to be rapidly achieved preferable vacuum state, so as to strengthen the working effect of this vacuum sintering furnace.
Description
Technical field
It the utility model is related to vacuum heat treatment equipment technical field, and in particular to a kind of vacuum sintering furnace.
Background technology
Vacuum sintering furnace is a kind of conventional vacuum heat treatment equipment, by universal in metal powder injection molded production
Use.Existing vacuum-sintering furnace structure mainly includes body of heater and pumped vacuum systems, and wherein pumped vacuum systems is to influence vacuum to burn
One key factor of freezing of a furnace work quality, the vacuum system of existing vacuum sintering furnace is usually by " diffusion pump → Roots is true
It is linked in sequence as empty pump → sliding vane vacuum pump ".The drawbacks of such order is：Only opening sliding vane vacuum pump forvacuum
When, the impeller of Roots vaccum pump is that do not have dynamic, forvacuum in such cases, and the air in stove is by slide plate vacuum
It will pass through the impeller of Roots vaccum pump when pumped and be driven, can thus lose a part and evacuate kinetic energy, drop
The low vacuumizing effect of whole pumped vacuum systems.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of vacuum sintering furnace, by between each pump valve
Control, it can effectively strengthen the vacuumizing effect of vacuum sintering furnace.
To realize above-mentioned technical proposal, a kind of vacuum sintering furnace provided by the utility model, including：Sintering furnace, knockout drum,
Booster pump, sliding vane rotary pump, lobe pump, the first slide valve pump and the second slide valve pump, the knockout drum is arranged on the side of sintering furnace, described
Connected between the suction opeing of knockout drum and the vacuum orifice of sintering furnace by pipeline, the suction opeing of booster pump is by pipeline with separating
The air outlet connection of tank, the suction opeing of sliding vane rotary pump pass through the air-out with the air outlet and knockout drum of booster pump respectively of a bipass
Mouth connection, the suction opeing of lobe pump pass through the air outlet of pipeline and knockout drum and connected, the suction opeing and lobe pump of the first slide valve pump
Air outlet between connected by pipeline, the suction opeing of the second slide valve pump is directly connected with the air outlet of knockout drum, the supercharging
Pump is provided with main valve with separating on tank connected pipeline, the lobe pump is provided with roughing valve with separating on tank connected pipeline,
The roughing valve is arranged in parallel with main valve, and sliding vane rotary pump is provided with preceding step valve with separating on tank connected pipeline, the preceding step valve with
Roughing valve is arranged in series and positioned at the rear of roughing valve, and first is provided with the pipeline connected between the first slide valve pump and lobe pump
Flapper valve, the second slide valve pump are provided with second gear plate valve with separating on tank connected pipeline, the second gear plate valve and roughing valve
It is arranged in series and positioned at the rear of roughing valve.
In the above-mentioned technical solutions, vacuum sintering furnace before start-up operation, it is necessary to carry out vacuum pumping, concrete operations are such as
Under, main valve, preceding step valve, booster pump, sliding vane rotary pump, lobe pump and the first slide valve pump are first shut off, opens roughing valve, second gear plate valve
With the second slide valve pump, forvacuum is carried out to sintering furnace, because the second slide valve pump and lobe pump are arranged in parallel, therefore passed through
When second slide valve pump individually carries out forvacuum, vacuum moving loss of energy will not be caused, and in vacuum, passes through separation
Tank can separate issuable dust or debris in sintering furnace, prevent these dusts or debris from entering pumped vacuum systems.
When the second guiding valve pumping for a period of time after, open lobe pump, the first slide valve pump and first gear plate valve, carry out it is secondary it is pre- take out,
Under the cooperation of lobe pump, the first slide valve pump and the second slide valve pump, a larger vacuum can will be drawn into sintering furnace, and
And can be removed dust caused by script in sintering furnace or debris completely by knockout drum, carry out standard for follow-up strong vacuumize
It is standby.After the completion of forvacuum, roughing valve, lobe pump, the first slide valve pump and the second slide valve pump are closed, opens main valve, booster pump
Sintering furnace is vacuumized by force with sliding vane rotary pump so that sintering furnace reaches preferable vacuum state, so as to strengthen this vacuum
The working effect of sintering furnace.
Preferably, the side of the sintering furnace is additionally provided with air blower, the blast orifice of the air blower and entering for sintering furnace
Air port connects, in real work, required air when providing fuel combustion by air blower for the combustion chamber in sintering furnace.
Preferably, vacuum meter and flowmeter are additionally provided with the air outlet port of the knockout drum, to monitor vacuum in real time
Vacuum and air mass flow in system, facilitate being turned on or off for subsequent valves or pump.
Preferably, first row air valve is provided with the suction opeing of first slide valve pump, after facilitating operation to terminate, to whole
Operation is exhausted in vacuum system.
Preferably, second row air valve is provided with the suction opeing of second slide valve pump, after facilitating operation to terminate, to whole
Operation is exhausted in vacuum system.
Preferably, the booster pump is also equipped with damper with separating on tank connected pipeline, because booster pump is being carried out
Pipe vibration may be caused during strong vacuum, in order to prevent pipe vibration from causing bad shadow to whole pumped vacuum systems
Ring, spy is in booster pump with separating mounting shock absorber on tank connected pipeline.
A kind of beneficial effect of vacuum sintering furnace provided by the utility model is：This vacuum sintering furnace has good take out
Vacuum effectiveness, can once be taken out in advance according to the actual requirement of work, it is secondary it is pre- take out and strong vacuum, and vacuumizing
During will not cause to vacuumize kinetic energy rejection, be also not in the phenomenon that dust or impurity block vacuum system so that
Sintering furnace can be rapidly achieved preferable vacuum state, so as to strengthen the working effect of this vacuum sintering furnace.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, sintering furnace；2nd, knockout drum；3rd, booster pump；4th, sliding vane rotary pump；5th, lobe pump；6th, the first slide valve pump；7th, second
Slide valve pump；8th, air blower；9th, main valve；10th, roughing valve；11st, preceding step valve；12nd, first gear plate valve；13rd, second gear plate valve；14th, it is true
Empty table；15th, flowmeter；16th, first row air valve；17th, second row air valve；18th, damper.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.The every other embodiment that ordinary people in the field is obtained under the premise of creative work is not made, is belonged to
The scope of protection of the utility model.
Embodiment：A kind of vacuum sintering furnace.
Shown in reference picture 1, a kind of vacuum sintering furnace, including：Sintering furnace 1, knockout drum 2, booster pump 3, sliding vane rotary pump 4, Roots
Pump 5, the first slide valve pump 6 and the second slide valve pump 7, the knockout drum 2 are arranged on the side of sintering furnace 1, the exhausting of the knockout drum 2
Connected between mouth and the vacuum orifice of sintering furnace 1 by pipeline, the suction opeing of booster pump 3 passes through the air-out of pipeline and knockout drum 2
Mouth connection, the suction opeing of sliding vane rotary pump 4 are connected with the air outlet of booster pump 3 and the air outlet of knockout drum 2 respectively by a bipass
Connect, the suction opeing of lobe pump 5 is connected by pipeline with the air outlet of knockout drum 2, suction opeing and the lobe pump 5 of the first slide valve pump 6
Air outlet between connected by pipeline, the air outlet of the suction opeing of the second slide valve pump 7 directly with knockout drum 2 is connected, the increasing
Main valve 9 is installed on the pipeline that press pump 3 is connected with knockout drum 2, is provided with the pipeline that the lobe pump 5 is connected with knockout drum 2
Roughing valve 10, the roughing valve 10 are arranged in parallel with main valve 9, and preceding step valve is provided with the pipeline that sliding vane rotary pump 4 is connected with knockout drum 2
11, the preceding step valve 11 and roughing valve 10 are arranged in series and positioned at the rears of roughing valve 10, the first slide valve pump 6 and lobe pump 5 it
Between be provided with first gear plate valve 12 on the pipeline that connects, be provided with second gear on the pipeline that the second slide valve pump 7 is connected with knockout drum 2
Plate valve 13, the second gear plate valve 13 are arranged in series with roughing valve 10 and positioned at the rears of roughing valve 10.
In the present embodiment, for sintering furnace 1, it is necessary to carry out vacuum pumping before start-up operation, concrete operations are as follows, close first
Main valve 9, preceding step valve 11, booster pump 3, sliding vane rotary pump 4, the slide valve pump 6 of lobe pump 5 and first are closed, opens roughing valve 10, second gear plate valve
13 and second slide valve pump 7, forvacuum is carried out to sintering furnace 1, because the second slide valve pump 7 is arranged in parallel with lobe pump 5, because
When this individually carries out forvacuum by the second slide valve pump 7, vacuum moving loss of energy will not be caused, and in vacuum,
Issuable dust or debris in sintering furnace 1 can be separated by knockout drum 2, prevent these dusts or debris entrance from taking out
Vacuum system.After the second slide valve pump 7 aspirates a period of time, lobe pump 5, the first slide valve pump 6 and first gear plate valve 12 are opened,
Taken out, under the cooperation of lobe pump 5, the first slide valve pump 6 and the second slide valve pump 7, will can be drawn into sintering furnace 1 in advance for the second time
One larger vacuum, and can be removed dust caused by script or debris in sintering furnace 1 completely by knockout drum 2,
It is ready for follow-up strong vacuumize.After the completion of forvacuum, roughing valve 10, lobe pump 5, the and of the first slide valve pump 6 are closed
Second slide valve pump 7, open main valve 9, booster pump 3 and sliding vane rotary pump 4 and sintering furnace the last 1 is vacuumized so that sintering furnace 1 reaches reason
The vacuum state thought, so as to strengthen the working effect of this vacuum sintering furnace 1.
Shown in reference picture 1, the side of the sintering furnace 1 is additionally provided with air blower 8, the blast orifice and burning of the air blower 8
The air inlet connection of freezing of a furnace 1, it is required when providing fuel combustion by air blower 8 for the combustion chamber in sintering furnace 1 in real work
The air wanted.
Shown in reference picture 1, vacuum meter 14 and flowmeter 15 are additionally provided with the air outlet port of the knockout drum 2, with reality
When monitor vacuum and air mass flow in vacuum system, facilitate being turned on or off for subsequent valves or pump.
Shown in reference picture 1, first row air valve 16 is provided with the suction opeing of first slide valve pump 6, facilitates operation to terminate
Afterwards, operation is exhausted to whole vacuum system.
Shown in reference picture 1, second row air valve 17 is provided with the suction opeing of second slide valve pump 7, facilitates operation to terminate
Afterwards, operation is exhausted to whole vacuum system.
Shown in reference picture 1, damper 18 is also equipped with the pipeline that the booster pump 3 is connected with knockout drum 2, due to supercharging
Pump 3 may cause pipe vibration during strong vacuum is carried out, in order to prevent pipe vibration to whole pumped vacuum systems
Have undesirable effect, spy's mounting shock absorber 18 on the pipeline that booster pump 3 is connected with knockout drum 2.
Described above is preferred embodiment of the present utility model, but the utility model should not be limited to the embodiment and
Accompanying drawing disclosure of that, so every do not depart from the lower equivalent or modification completed of spirit disclosed in the utility model, all fall
Enter the scope of the utility model protection.
Claims (6)
- A kind of 1. vacuum sintering furnace, it is characterised in that including：Sintering furnace, knockout drum, booster pump, sliding vane rotary pump, lobe pump, first are slided Valve pump and the second slide valve pump, the knockout drum are arranged on the side of sintering furnace, the suction opeing of the knockout drum and taking out for sintering furnace Connected between vacuum port by pipeline, the suction opeing of booster pump is connected by the air outlet of pipeline and knockout drum, and sliding vane rotary pump is taken out Air port is connected with the air outlet of booster pump and the air outlet of knockout drum respectively by a bipass, and the suction opeing of lobe pump passes through The air outlet of pipeline and knockout drum connects, and is connected between the suction opeing of the first slide valve pump and the air outlet of lobe pump by pipeline, The suction opeing of second slide valve pump is directly connected with the air outlet of knockout drum, and the booster pump is installed with separating on tank connected pipeline There is main valve, the lobe pump is provided with roughing valve with separating on tank connected pipeline, the roughing valve is arranged in parallel with main valve, rotation Piece pump is provided with preceding step valve with separating on tank connected pipeline, the preceding step valve is arranged in series with roughing valve and positioned at roughing valve Rear, first gear plate valve is provided with the pipeline connected between the first slide valve pump and lobe pump, and the second slide valve pump connects with knockout drum Second gear plate valve is provided with the pipeline connect, the second gear plate valve is arranged in series with roughing valve and positioned at the rear of roughing valve.
- 2. vacuum sintering furnace as claimed in claim 1, it is characterised in that：The side of the sintering furnace is additionally provided with air blower, The blast orifice of the air blower and the air inlet of sintering furnace connect.
- 3. vacuum sintering furnace as claimed in claim 1, it is characterised in that：It is additionally provided with the air outlet port of the knockout drum Vacuum meter and flowmeter.
- 4. vacuum sintering furnace as claimed in claim 1, it is characterised in that：Is provided with the suction opeing of first slide valve pump One air bleeding valve.
- 5. the vacuum sintering furnace as described in claim 1 or 4, it is characterised in that：Set at the suction opeing of second slide valve pump There is second row air valve.
- 6. vacuum sintering furnace as claimed in claim 1, it is characterised in that：The booster pump is with separating on tank connected pipeline also Damper is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720883929.2U CN206959566U (en) | 2017-07-20 | 2017-07-20 | A kind of vacuum sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720883929.2U CN206959566U (en) | 2017-07-20 | 2017-07-20 | A kind of vacuum sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206959566U true CN206959566U (en) | 2018-02-02 |
Family
ID=61382196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720883929.2U Expired - Fee Related CN206959566U (en) | 2017-07-20 | 2017-07-20 | A kind of vacuum sintering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206959566U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499430A (en) * | 2019-08-23 | 2019-11-26 | 攀钢集团攀枝花钢铁研究院有限公司 | 7.5 tons of I type furnaces produce titanium sponge vacuum system |
| CN113340095A (en) * | 2021-04-14 | 2021-09-03 | 深圳市拉普拉斯能源技术有限公司 | Vacuum degreasing sintering system and using method thereof |
| CN113606949A (en) * | 2021-07-29 | 2021-11-05 | 北京北方华创真空技术有限公司 | Vacuum pumping system of multi-station degassing furnace |
-
2017
- 2017-07-20 CN CN201720883929.2U patent/CN206959566U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499430A (en) * | 2019-08-23 | 2019-11-26 | 攀钢集团攀枝花钢铁研究院有限公司 | 7.5 tons of I type furnaces produce titanium sponge vacuum system |
| CN110499430B (en) * | 2019-08-23 | 2022-03-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Vacuum system for producing titanium sponge by 7.5 ton I-type furnace |
| CN113340095A (en) * | 2021-04-14 | 2021-09-03 | 深圳市拉普拉斯能源技术有限公司 | Vacuum degreasing sintering system and using method thereof |
| CN113606949A (en) * | 2021-07-29 | 2021-11-05 | 北京北方华创真空技术有限公司 | Vacuum pumping system of multi-station degassing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 Termination date: 20190720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |