CN105424893A - Air renewing system used for small-size sealing chamber and air renewing method therefor - Google Patents
Air renewing system used for small-size sealing chamber and air renewing method therefor Download PDFInfo
- Publication number
- CN105424893A CN105424893A CN201510988628.1A CN201510988628A CN105424893A CN 105424893 A CN105424893 A CN 105424893A CN 201510988628 A CN201510988628 A CN 201510988628A CN 105424893 A CN105424893 A CN 105424893A
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- Prior art keywords
- air
- gas
- bag
- annular seal
- seal space
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
Abstract
An air renewing system used for a small-size sealing chamber and an air renewing method therefor. The air renewing system comprises an air inflating/exhausting unit, a new air inflating unit and a control unit. The air inflating/exhausting unit includes the sealing chamber, a flexible air bag, an inflating apparatus, an air bag pack-up apparatus, an air bag accommodating apparatus and an air exhaust pipe. The air bag pack-up apparatus and the air bag accommodating apparatus are arranged on the top of the sealing chamber. The flexible air bag is installed on the air bag pack-up apparatus. One end of the air exhaust pipe is sealedly communicated with an air outlet on the sealing chamber. A conversion joint on the other end is connected to an external waste gas outlet and an air purity analyzer of the control unit respectively through air pipe jointers. The air renewing method includes the following steps: switching on a power supply, regulating a pressure regulating component to slowly expand the flexible air bag, inflating new air, and compressing the air bag through the air bag pack-up apparatus and positive pressure on the air bag of the new air, and detecting the concentration of new air in the air pipe. The air renewing system is suitable for work status requiring atmosphere protection or air renewing.
Description
Technical field
The present invention relates to a kind of air exchange system for small-sized sealing chamber and air exchanging method thereof.
Background technology
At intermetallic composite coating, manufacture the neighborhood that metal material or stupalith sintering etc. need atmosphere protection again; materials processing needs to carry out under specific inert gas atmosphere protection; if processing control climate is improper; too high oxygen level; work metal can react with the trace oxygen in environment; form brittle metal oxide thing; the performance of grievous injury metal; greatly reduce the quality of part to be processed; also scrapping of processing parts material can be caused time serious; reduction work efficiency widely, improves cost.Therefore, the inert atmosphere in metal material processing process plays very important effect for the quality of part to be processed.
In existing technology, traditional method carries out atmosphere protection with convection type; Also or atmosphere protection chamber carry out vacuumizing process, then pass into new gas and carry out atmosphere protection; Novel method carries out the process of purification oxygen for carrying out redox reaction by circulative convection to internal oxygen, finally plays atmosphere protection effect.But the shortcomings such as these methods of operating exist, and air consumption is large, cost is high, length consuming time, atmosphere protection Gas content not in place, new can not be monitored, be unfavorable for the processing of material, efficiency is low, has certain limitation.
Summary of the invention
In order to overcome the shortcomings such as existing atmosphere protection device atmosphere preparation method air consumption is large, cost is high, length consuming time, atmosphere protection Gas content not in place, new can not be monitored, the invention provides that a kind of air consumption is little, cost is low, the short air exchange system for small-sized sealing chamber consuming time and air exchanging method thereof.
Air exchange system for small-sized sealing chamber of the present invention, it is characterized in that: comprise and fill exhaust unit, new gas inflation unit and control module, the described exhaust unit that fills comprises annular seal space, flexible air-bag, aerating device, air bag retraction mechanism, air bag accommodation device and gas outlet, described annular seal space arranges sealed container door, exhaust vent and new gas air intake opening, air bag retraction mechanism and the air bag accommodation device for receiving flexible air-bag are installed in the top of described annular seal space, described flexible air-bag is arranged on described air bag retraction mechanism, described flexible air-bag is communicated with the gas generator for air bag being arranged in annular seal space outside by airbag aeration connecting pipe, one end of described gas outlet seals with the exhausr port of described annular seal space and is communicated with, and the X-over of the other end is exported with external exhaust gas respectively by tracheae web member and the gas purity analyser of control module is communicated with, the gas cylinder of described new gas inflation unit is communicated with described annular seal space by protection gas draft tube, described control module comprises gas purity analyser, voltage regulation component and power bus, and the control end of described voltage regulation component and described gas generator for air bag is electrically connected, and feeder ear power lead and the described power bus of described gas generator for air bag are electrically connected.
Described air bag retraction mechanism is arranged on one of them drift angle place of annular seal space.
Described air bag accommodation device comprises fixture and collecting part, described collecting part is arranged near the drift angle of the annular seal space arranged described in air bag retraction mechanism by fixture, the incorporating section of described collecting part and the sidewall of described annular seal space, top board surround the space for receiving flexible air-bag jointly, and leave the gap for flexible air-bag turnover between collecting part and the sidewall of annular seal space.
Described collecting part is flap, wherein flap comprises the binding face for being fitted in annular seal space top board and the barrier plate for stopping flexible air-bag, the turning point of described flap is hinged on described annular seal space inside by fixture, and closes up to the annular seal space sidewall slope formation of homonymy in the bottom of described barrier plate.
The end of described gas outlet is by gas-tpe fitting and external exhaust gas outlet, and the end of described gas outlet is furnished with waste gas outlet air valve.
Described tracheae web member is threeway, first head end of described tracheae web member is communicated with described gas outlet by X-over, second head end of tracheae web member is communicated with exhaust branch pipe, the 3rd head end of tracheae web member and the air intake opening pipeline connection of gas purity analyser.
Described aerating device is air pump.
Described flexible air-bag is the sealing bag of compressible expansion.
Described voltage regulation component can adopt the flowmeter for controlling aerating device flow, also can be the regulator or air valve with said function.
Utilize the air exchanging method of the air exchange system for small-sized sealing chamber of the present invention, comprise the following steps:
1) prepare before experiment: open annular seal space door, prepare before completing experiment, close chamber door, then carry out filling exhaust to reach ventilation effect, external power source connected by power bus joint, and the new gas inlet union of the gas cylinder of new gas inflation unit is connected with the new gas bottle in outside;
2) regulate voltage regulation component, gas generator for air bag is started working, flexible air-bag is expanded; 3) treat that flexible air-bag closes voltage regulation component after full, closed waste gas outlet air valve, open the valve of the gas cylinder of outside new gas inflation unit, new gas is carried to enter annular seal space by protection gas draft tube, by air bag retraction mechanism, because pulling force and gaseous tension effect make air bag finally be compressed in air bag accommodation device;
4) waste gas outlet air valve is opened; open gas purity analyser; the new gas concentration detected in tracheae is the new Gas content of annular seal space; closed waste gas outlet air valve after reaching required job requirement; complete new gas atmosphere protection effect; if new Gas content does not reach requirement, repeat the above-mentioned steps gas that tries again and fill exhaust.
The invention has the beneficial effects as follows: the working condition being applicable to need atmosphere protection or ventilation; New gas consumption tolerance is few, and gas content can be monitored, and the time reaching required atmosphere requirements is short, can improve crudy and efficiency.Whole system cost is low, and easy installation and removal is easy to operate, is convenient to carrying.
Accompanying drawing explanation
Fig. 1 is principle of work process flow diagram of the present invention.
Fig. 2 is cut-away view of the present invention.
Fig. 3 is internal waste gas venting principleand figure of the present invention (arrow represents internal gas and flows to).
Fig. 4 is airbag aeration schematic diagram of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing
With reference to accompanying drawing:
Embodiment 1 air exchange system for small-sized sealing chamber of the present invention, comprise and fill exhaust unit, new gas inflation unit and control module 12, the described exhaust unit that fills comprises annular seal space 1, flexible air-bag 2, aerating device 3, air bag retraction mechanism 4, air bag accommodation device 5 and gas outlet 6, described annular seal space 1 arranges sealed container door, exhaust vent 11 and new gas air intake opening, air bag retraction mechanism 4 and the air bag accommodation device for receiving flexible air-bag are installed in the top of described annular seal space 1, described flexible air-bag is arranged on described air bag retraction mechanism 4, described flexible air-bag 2 is communicated with the aerating device 3 being arranged in annular seal space outside by airbag aeration connecting pipe 7, one end of described gas outlet 6 seals with the exhausr port of described annular seal space 1 and is communicated with, and the X-over 61 of the other end is exported with external exhaust gas respectively by tracheae web member 62 and the gas purity analyser of control module is communicated with, the gas cylinder 8 of described new gas inflation unit is communicated with described annular seal space 1 by protection gas draft tube 81, described control module comprises gas purity analyser 9, voltage regulation component 10 and power bus, and described voltage regulation component 10 is electrically connected with the control end of described aerating device 3, and feeder ear power lead and the described power bus of described aerating device 3 are electrically connected.
Described air bag retraction mechanism 4 is arranged on one of them drift angle place of annular seal space.
Described air bag accommodation device 5 comprises fixture and collecting part, described collecting part is arranged near the drift angle of the annular seal space arranged described in air bag retraction mechanism by fixture, the incorporating section of described collecting part and the sidewall of described annular seal space, top board surround the space for receiving flexible air-bag jointly, and leave the gap for flexible air-bag turnover between collecting part and the sidewall of annular seal space.
Described collecting part is flap, wherein flap comprises the binding face for being fitted in annular seal space top board and the barrier plate for stopping flexible air-bag, the turning point of described flap is hinged on described annular seal space inside by fixture, and closes up to the annular seal space sidewall slope formation of homonymy in the bottom of described barrier plate.
The end of described gas outlet 6 is by gas-tpe fitting 64 and external exhaust gas outlet, and the end of described gas outlet 6 is furnished with waste gas outlet air valve 63.
Described tracheae web member 62 is threeway, first head end of described tracheae web member is communicated with described gas outlet 6 by X-over 61, second head end of tracheae web member is communicated with exhaust branch pipe, the 3rd head end of tracheae web member and the air intake opening pipeline connection of gas purity analyser.
Described aerating device 3 is air pump.
Described flexible air-bag 2 is the sealing bag of compressible expansion.
Described voltage regulation component 10 can adopt the flowmeter for controlling aerating device flow, also can be the regulator or air valve with said function.
Described new gas refers to: the gas that required swap-in goes, such as: originally inner air displacement is become nitrogen, and so nitrogen is exactly new gas, if be replaced as argon gas, that argon gas is exactly new gas.
Embodiment 2 utilizes the air exchanging method of the air exchange system for small-sized sealing chamber described in embodiment 1, comprises the following steps:
1) prepare before experiment: open annular seal space door, prepare before completing experiment, close chamber door, then carry out filling exhaust to reach ventilation effect, external power source connected by power bus joint, and the new gas inlet union of the gas cylinder of new gas inflation unit is connected with the new gas bottle in outside;
2) regulate voltage regulation component, gas generator for air bag is started working, flexible air-bag is expanded; 3) treat that flexible air-bag closes voltage regulation component after full, closed waste gas outlet air valve, open the valve of the gas cylinder of outside new gas inflation unit, new gas is carried to enter annular seal space by protection gas draft tube, by air bag retraction mechanism, because pulling force and gaseous tension effect make air bag finally be compressed in air bag accommodation device;
4) waste gas outlet air valve is opened; open gas purity analyser; the new gas concentration detected in tracheae is the new Gas content of annular seal space; closed waste gas outlet air valve after reaching required job requirement; complete new gas atmosphere protection effect; if new Gas content does not reach requirement, repeat the above-mentioned steps gas that tries again and fill exhaust.
Content described in this instructions embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also comprises those skilled in the art and conceives the equivalent technologies means that can expect according to the present invention.
Claims (9)
1. for the air exchange system in small-sized sealing chamber, it is characterized in that: comprise and fill exhaust unit, new gas inflation unit and control module, the described exhaust unit that fills comprises annular seal space, flexible air-bag, aerating device, air bag retraction mechanism, air bag accommodation device and gas outlet, described annular seal space arranges sealed container door, exhaust vent and new gas air intake opening, air bag retraction mechanism and the air bag accommodation device for receiving flexible air-bag are installed in the top of described annular seal space, described flexible air-bag is arranged on described air bag retraction mechanism, described flexible air-bag is communicated with the aerating device being arranged in annular seal space outside by airbag aeration connecting pipe, one end of described gas outlet seals with the exhausr port of described annular seal space and is communicated with, and the X-over of the other end is exported with external exhaust gas respectively by tracheae web member and the gas purity analyser of control module is communicated with, the gas cylinder of described new gas inflation unit is communicated with described annular seal space by protection gas draft tube, described control module comprises gas purity analyser, voltage regulation component and power bus, and the control end of described voltage regulation component and described aerating device is electrically connected, and feeder ear power lead and the described power bus of described aerating device are electrically connected.
2., as claimed in claim 1 for the air exchange system in small-sized sealing chamber, it is characterized in that: described air bag retraction mechanism is arranged on one of them drift angle place of annular seal space.
3. as claimed in claim 2 for the air exchange system in small-sized sealing chamber, it is characterized in that: described air bag accommodation device comprises fixture and collecting part, described collecting part is arranged near the drift angle of the annular seal space arranged described in air bag retraction mechanism by fixture, the incorporating section of described collecting part and the sidewall of described annular seal space, top board surround the space for receiving flexible air-bag jointly, and leave the gap for flexible air-bag turnover between collecting part and the sidewall of annular seal space.
4. as claimed in claim 3 for the air exchange system in small-sized sealing chamber, it is characterized in that: described collecting part is flap, wherein flap comprises the binding face for being fitted in annular seal space top board and the barrier plate for stopping flexible air-bag, the turning point of described flap is hinged on described annular seal space inside by fixture, and closes up to the annular seal space sidewall slope formation of homonymy in the bottom of described barrier plate.
5., as claimed in claim 1 for the air exchange system in small-sized sealing chamber, it is characterized in that: the end of described gas outlet is by gas-tpe fitting and external exhaust gas outlet, and the end of described gas outlet is furnished with waste gas outlet air valve.
6. as claimed in claim 5 for the air exchange system in small-sized sealing chamber, it is characterized in that: described tracheae web member is threeway, first head end of described tracheae web member is communicated with described gas outlet by X-over, second head end of tracheae web member is communicated with exhaust branch pipe, the 3rd head end of tracheae web member and the air intake opening pipeline connection of gas purity analyser.
7., as claimed in claim 1 for the air exchange system in small-sized sealing chamber, it is characterized in that: described aerating device is air pump.
8., as claimed in claim 5 for the air exchange system in small-sized sealing chamber, it is characterized in that: described flexible air-bag is the sealing bag of compressible expansion.
9. utilize the air exchanging method of the air exchange system for small-sized sealing chamber described in claim 1, comprise the following steps:
1) prepare before experiment: open annular seal space door, prepare before completing experiment, close chamber door, then carry out filling exhaust to reach ventilation effect, external power source connected by power bus joint, and the new gas inlet union of the gas cylinder of new gas inflation unit is connected with the new gas bottle in outside;
2) regulate voltage regulation component, gas generator for air bag is started working, flexible air-bag is expanded; 3) treat that flexible air-bag closes voltage regulation component after full, closed waste gas outlet air valve, open the valve of the gas cylinder of outside new gas inflation unit, new gas is carried to enter annular seal space by protection gas draft tube, by air bag retraction mechanism, because pulling force and gaseous tension effect make air bag finally be compressed in air bag accommodation device;
4) waste gas outlet air valve is opened; open gas purity analyser; the new gas concentration detected in tracheae is the new Gas content of annular seal space; closed waste gas outlet air valve after reaching required job requirement; complete new gas atmosphere protection effect; if new Gas content does not reach requirement, repeat the above-mentioned steps gas that tries again and fill exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510988628.1A CN105424893A (en) | 2015-12-24 | 2015-12-24 | Air renewing system used for small-size sealing chamber and air renewing method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510988628.1A CN105424893A (en) | 2015-12-24 | 2015-12-24 | Air renewing system used for small-size sealing chamber and air renewing method therefor |
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| CN105424893A true CN105424893A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510988628.1A Pending CN105424893A (en) | 2015-12-24 | 2015-12-24 | Air renewing system used for small-size sealing chamber and air renewing method therefor |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2290279A (en) * | 1994-06-10 | 1995-12-20 | Riverlynx Ltd | Rigid walled container with liquid outlet and air inlet |
| CN2626764Y (en) * | 2003-01-29 | 2004-07-21 | 徐新琦 | Multipurpose air charging device, heat insulating device and sunproof apparatus for automobile |
| US20100011837A1 (en) * | 2007-02-22 | 2010-01-21 | Erich Eglseder | Arrangement and method for protective-gas measurement |
| CN201446232U (en) * | 2009-07-10 | 2010-05-05 | 西北工业大学 | Inert atmosphere control device for enclosed circulating purification |
| CN201716228U (en) * | 2010-07-20 | 2011-01-19 | 中国工程物理研究院总体工程研究所 | High-temperature Hopkinson pressure bar experiment system with atmosphere protecting device |
| CN102513167A (en) * | 2011-12-27 | 2012-06-27 | 深圳市建筑科学研究院有限公司 | Environmental testing chamber |
| CN205333600U (en) * | 2015-12-24 | 2016-06-22 | 浙江工业大学 | A air exchange system for small -size sealed chamber |
-
2015
- 2015-12-24 CN CN201510988628.1A patent/CN105424893A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2290279A (en) * | 1994-06-10 | 1995-12-20 | Riverlynx Ltd | Rigid walled container with liquid outlet and air inlet |
| CN2626764Y (en) * | 2003-01-29 | 2004-07-21 | 徐新琦 | Multipurpose air charging device, heat insulating device and sunproof apparatus for automobile |
| US20100011837A1 (en) * | 2007-02-22 | 2010-01-21 | Erich Eglseder | Arrangement and method for protective-gas measurement |
| CN201446232U (en) * | 2009-07-10 | 2010-05-05 | 西北工业大学 | Inert atmosphere control device for enclosed circulating purification |
| CN201716228U (en) * | 2010-07-20 | 2011-01-19 | 中国工程物理研究院总体工程研究所 | High-temperature Hopkinson pressure bar experiment system with atmosphere protecting device |
| CN102513167A (en) * | 2011-12-27 | 2012-06-27 | 深圳市建筑科学研究院有限公司 | Environmental testing chamber |
| CN205333600U (en) * | 2015-12-24 | 2016-06-22 | 浙江工业大学 | A air exchange system for small -size sealed chamber |
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Application publication date: 20160323 |