CN203441709U - Brazing sintering chamber vacuum-pumping system - Google Patents
Brazing sintering chamber vacuum-pumping system Download PDFInfo
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- CN203441709U CN203441709U CN201320372458.0U CN201320372458U CN203441709U CN 203441709 U CN203441709 U CN 203441709U CN 201320372458 U CN201320372458 U CN 201320372458U CN 203441709 U CN203441709 U CN 203441709U
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Abstract
The utility model provides a brazing sintering chamber vacuum-pumping system which mainly comprises two vacuum-pumping pump sets connected in parallel, wherein the first pump set is a coarse-vacuum-pumping pump set used on the condition that smoke pollution exists in low vacuum, and the second pump set is a high-vacuum-pumping pump set used when less pollution exists in high vacuum. When solid particles and harmful gas exist in the working process of a brazing sintering furnace, only the first pump set works, an injection pump is used for pumping mixed gas, when pressure reaches 0.08-0.095Mpa, air flow in a pipeline is almost impossible to carry out smoke, at the moment, the first pump set is closed, and only the communicated second pump set works. The coarse-vacuum-pumping injection pump set does not have mechanical moving parts and is not easily polluted and abraded by gas particles, the smoke can be dissolved into water, environmental pollution is avoided and the brazing sintering chamber vacuum-pumping system is simple and practical.
Description
Technical field
The utility model relates to vacuum brazing and the technical field such as metallurgy sintered, particularly soldering sintering furnace pumped vacuum systems used.
Background technique
In industrial production, a lot of production technologies can be used vacuum furnace product is processed, such as vacuum brazing furnace, and vacuum sintering furnace and vacuum heat treatment furnace etc., due to production technology progress, more and more higher to technological requirement, the application of vacuum environment is also more and more extensive.
In soldering sintering production process, brazing material can produce a large amount of dust and harmful gas in heating process, under existing vacuum pumping technology condition, dust and harmful gas are evacuated system and directly extract out and be discharged in atmosphere, not only can cause environmental pollution, and dust is in the process process of vacuum pump, can incorporate in the lubricant oil of vacuum pump, after a period of time, the mechanical gyro unit of meeting erosion corrosion vacuum pump, affect the ability to work of vacuum pump, after use a period of time, the time-consuming cleaning of palpus, increases user cost.In view of this, seek a kind of vacuum technology that can produce continuously and reduce environmental pollution and have real world applications prospect.
[0003] patent ZL201120574180.6 infringement to pumped vacuum systems for fear of dewaxing process, a kind of dual circuit pumped vacuum systems has been proposed, in low temperature high pollution situation, only adopt atmospheric jet pump and water ring pump to vacuumize, in the oligosaprobic situation of high temperature, secondary Roots pump group is connected and is jointly vacuumized with atmospheric jet pump and water ring pump.Two vacuum-pumping pipeline in parallel share a set of atmospheric jet pump and water ring pump.Different from it: two vacuum pumping devices in parallel that this patent adopts are to separate work completely, and what adopt is water jet jet pump, in working procedure, first by the first pump group, slightly vacuumize, to pass through water jet jet pump by the harmful matter band people water tanks such as flue dust in gas, when pressure reaches 0.08-0.095Mpa, only use the second pump group.And first pump group adopt centrifugal pump to drive water jet jet pump, take out coarse vacuum process, in gas flow route, containing machinery rotation parts, can not impact the service behaviour of pump, can guarantee the working life of pumped vacuum systems, efficiency is high.In addition, the second pump group combination flexibly, is preset degree of vacuum as long as can reach.
Model utility content
Main purpose of the present utility model is to provide a kind of pumped vacuum systems, can effectively solve in vacuum harmful matter in institute's body of bleeding and can remain in vacuum pump and to the hurtful problem of vacuum pump, reach the object that reduces vacuum pump maintenance and reduce environmental pollution.
For addressing the above problem, the utility model provides a kind of novel pumped vacuum systems, and for vacuumizing of vacuum furnace chamber, it comprises:
The first pump group, is connected by vacuum tube with described vacuum chamber, comprises and controls the vacuum valve of this pump group and jet pump, centrifugal pump and the water tank being attached thereto.
The second pump group, is connected with described vacuum chamber, comprises vacuum pump and the first control valve of controlling this vacuum pumping pump group on soldering sintering furnace.
The first pump group and the second pump group are to be connected to vacuum chamber after parallel connection, and two pipelines participate in vacuumizing work when different.
Accompanying drawing explanation
Fig. 1 is vacuum pumping device structural representation;
In figure, be labeled as vacuum valve 1, vacuum chamber 2, vacuum valve 3, jet pump 4, water tank 5, control valve 6, centrifugal pump 7, vacuum valve 8, vacuum pump group II.It is the thick vacuum pumping device of vacuum jet pump that jet pump, centrifugal pump, control valve, soldering oven water tank are collectively referred to as I pump group.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
In order to provide a kind of simple in structure, the vacuum pumping device that manufacturing expense is low.Vacuum pumping device comprises vacuum valve 1, vacuum chamber 2, vacuum valve 3, jet pump 4, water tank 5, control valve 6, centrifugal pump 7, vacuum valve 8.In section door 1, pass into air, and be connected with vacuum chamber 3, vacuum chamber 2 is connected with two parallel connection vacuum pipelines, by vacuum valve 3 and vacuum valve 8, is controlled respectively.Vacuum valve 8 is connected to vacuum pump group II, and vacuum valve 3 is connected with the coarse vacuum system of taking out that jet pump 4, centrifugal pump 7, control valve 6, soldering oven water tank 5 form.
During production and processing, first close vacuum valve 1, close vacuum valve 8, open vacuum valve 3, make the first pump group work, centrifugal pump is sent water into jet pump, at jet pump, form jet and start intake-gas, gas in vacuum chamber enters jet pump, mix with water and also together enter water tank, volume of smoke in gas and some harmful gas soluble in water have been stayed in the middle of water tank, gas through purifying goes out from elutriation, until the pressure in vacuum chamber is while reaching 0.08-0.095Mpa, air-flow carries dust hardly, now, close after vacuum valve 3, stop vacuum jet pump I and start after vacuum pump group II, and then open vacuum valve 8.Take out the I pump group machinery-free moving element of coarse vacuum pump-unit, micronic dust in mixed gas wearing and tearing hardly, and with water circulation, enter water tank by flue dust is soluble in water in the course of the work, avoid flue dust to enter air and cause contamination, also reduced the cleaning maintenance work of vacuum chamber 2 simultaneously, simple to operate.When device end-of-job, open vacuum valve 1, air enters soldering sintering chamber, reaches after atmospheric pressure, just can open soldering sintering chamber.
Claims (1)
1. a soldering sintering chamber pumped vacuum systems, for soldering sintering vacuum chamber (2) is vacuumized, is characterized in that, comprising:
The first pump group (I), is connected by pipeline with described vacuum chamber (2), comprises vacuum valve (3) and the jet pump (4) being attached thereto, centrifugal pump (7) and the water tank (5) of controlling this pump group;
The second pump group (II), is connected with described vacuum chamber (2), comprises vacuum pump and the vacuum valve (8) of controlling this vacuum pumping pump group on soldering sintering furnace;
The first pump group and the second pump group are to be connected to vacuum chamber after parallel connection, and two pipelines participate in vacuumizing work when different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372458.0U CN203441709U (en) | 2013-06-27 | 2013-06-27 | Brazing sintering chamber vacuum-pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372458.0U CN203441709U (en) | 2013-06-27 | 2013-06-27 | Brazing sintering chamber vacuum-pumping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441709U true CN203441709U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320372458.0U Expired - Lifetime CN203441709U (en) | 2013-06-27 | 2013-06-27 | Brazing sintering chamber vacuum-pumping system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203441709U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165412A (en) * | 2021-12-21 | 2022-03-11 | 宁波市海曙莱富医疗科技有限公司 | Sterilizer vacuum pumping system |
| CN115434902A (en) * | 2022-11-07 | 2022-12-06 | 中国空气动力研究与发展中心超高速空气动力研究所 | High-flow high-vacuum air pumping system and design method thereof |
| CN117232750A (en) * | 2023-11-14 | 2023-12-15 | 江苏金钰铭电子有限公司 | Jet vacuumizing leak detection device |
-
2013
- 2013-06-27 CN CN201320372458.0U patent/CN203441709U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165412A (en) * | 2021-12-21 | 2022-03-11 | 宁波市海曙莱富医疗科技有限公司 | Sterilizer vacuum pumping system |
| CN115434902A (en) * | 2022-11-07 | 2022-12-06 | 中国空气动力研究与发展中心超高速空气动力研究所 | High-flow high-vacuum air pumping system and design method thereof |
| CN115434902B (en) * | 2022-11-07 | 2022-12-30 | 中国空气动力研究与发展中心超高速空气动力研究所 | Design method of high-flow high-vacuum air pumping system |
| CN117232750A (en) * | 2023-11-14 | 2023-12-15 | 江苏金钰铭电子有限公司 | Jet vacuumizing leak detection device |
| CN117232750B (en) * | 2023-11-14 | 2024-01-30 | 江苏金钰铭电子有限公司 | Jet vacuumizing leak detection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |
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| CX01 | Expiry of patent term |