CN202304328U - Device for gas replacement of working chambers of oven/sintering furnaces - Google Patents
Device for gas replacement of working chambers of oven/sintering furnaces Download PDFInfo
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- CN202304328U CN202304328U CN2011204348561U CN201120434856U CN202304328U CN 202304328 U CN202304328 U CN 202304328U CN 2011204348561 U CN2011204348561 U CN 2011204348561U CN 201120434856 U CN201120434856 U CN 201120434856U CN 202304328 U CN202304328 U CN 202304328U
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- air
- air bag
- operating room
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- inlet
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Abstract
The utility model discloses a device for gas replacement of working chambers of oven/sintering furnaces, which comprises components such as a gas bag, a gas extracting pump and the like; and the device is characterized in that a cylindrical gas bag with an elliptic section is arranged in the working chamber, when the gas bag is filled with inert gas such as nitrogen, gas in the working chamber is pressed and extruded by the gas bag, and when the gas in the gas bag is pumped out and conveyed to the working chamber, the gas in the working chamber is replaced by nitrogen. The device disclosed by the utility model has the advantages that the working chamber is not required to be vacuumized, the demands on the strength of steel and the sealing performance of an oven door are not high, the manufacturing cost is reduced, and the application is safer; when an oven carries out baking, drying, heat treatment and other heating treatment on objects, the objects are not oxidized; and by using the device, the natural cooling mode of the oven can be changed, the drying time can be shortened, and the efficiency can be improved.
Description
Technical field
The utility model relates to baking oven and sintering furnace operating room gas displacement technology, is specifically related to utilize a kind of air interchanger that fills the Exhaust airbag substitution gas.
Background technology
Vacuum method is adopted in the baking oven of prior art, the gas displacement of sintering furnace operating room more, promptly adopts the vavuum pump original gas in the operating room of finding time, and afterwards desired gas is charged into the operating room.This method exists following not enough: when the operating room is in vacuum state; Form the pressure reduction of nearly 0.1Mpa with the external world, so, higher to the integral rigidity and the sealing requirements of baking oven, sintering furnace; Final vacuum requirement to vavuum pump is also higher, thereby has increased manufacturing cost greatly; That the operating room reaches the limit of the vacuum required time is longer, thereby has influenced the operating efficiency of baking oven, sintering furnace, has increased user's production cost.
In sum, be necessary existing baking oven, sintering furnace operating room gas displacement technology are improved,, increase work efficiency and security to reduce manufacturing cost.
Summary of the invention
The purpose of the utility model is the problem that exists to prior art; Adopt the air bag row pressure to extrude the method for displacement baking oven operating room gas, a kind of baking oven air interchanger is provided, it is simple in structure, be convenient to operation; And can reduce the baking oven cost, increase work efficiency and security performance.
The utility model adopts the technical scheme of dealing with problems to be: a kind of device that is used for baking oven and the gas displacement of sintering furnace operating room; Comprise air bag, aspiration pump, it is characterized in that: its shape of described air bag is that the cross section is oval-shaped cylinder, is positioned at four indoor angles of dry work; Three row annulus are arranged on the air bag; 6 annulus of every row evenly distribute along the elliptic cylinder bus, and said three row annulus are enclosed within respectively on the air bag fixed bar, have air admission hole and steam vent on the air bag.
Wherein, Also comprise air bag inlet manifold, the air bag air inlet person in charge, air bag air intake branch, the air bags person in charge, air bags arm and operating room's air inlet pipe; The air bag inlet manifold links to each other with the casing external air source; The air bag inlet manifold is responsible for the air bag air inlet and links to each other, and can be to operating room and airbag aeration.The air bag air inlet person in charge and air bags are responsible for the side room that is positioned at casing one end; And be fixed on three lateral walls of casing; Said air bag air intake branch is responsible for air bags with the air bag air inlet person in charge respectively with the air bag exhaust branch pipe and is connected; And corresponding with the position of opening of air bag air admission hole and steam vent, and pass the operating room and be connected with air bag, the air bag air inlet is responsible for inlet end and is connected with the air bag air inlet pipe; The air bags arm is connected with aspiration pump, and operating room's air inlet pipe is responsible for the air bag air inlet and is connected.
Wherein, Also comprise air bag air intake valve, air bags valve and operating room's air intake valve; Said operating room air intake valve is installed in the air bag inlet manifold and the air bag air inlet is responsible between connecting place and the operating room's air inlet pipe; The air bag air intake valve is installed in the air bag inlet manifold and connecting place to each air bag air intake branch is responsible in the air bag air inlet and the air bag air inlet is responsible between the connecting place, and said air bags tube valve is installed in air bags and is responsible for, and is connected with aspiration pump.
Wherein, said aspiration pump is the dual-purpose aspiration pump of exhaust of bleeding, and an end is responsible for air bags and is connected, and an end is connected with operating room's air inlet pipe.
The used source of the gas gas of the utility model device is inert gases such as nitrogen.According to production requirement with treat drying article quantity,, raise the efficiency if need to shorten the stoving process time; Director demon can be set; After the baking oven rotating disk stopped operating, operating room's air intake valve was opened, and the source of the gas outer by casing directly charges into nitrogen to the operating room; Can cool off dry goods, be again the next dry run in operating room to be carried out nitrogen replenish in advance.
The beneficial effect of the utility model is, the operating room need not vacuumize, and is less demanding to steel strength and chamber door sealing property, and manufacturing cost reduces, and has overcome because of the too high danger that is prone to blast of interior pressure, uses safer; Baking oven to article bake and bank up with earth, dry, heat treatment and other heating, all be to carry out in the oxygen atmosphere not having, the work indoor article can oxidation; This air-exchanging structure can be used for uses such as baking oven, drying box, sintering furnace.
Description of drawings
Fig. 1 is that the master of the utility model air interchanger baking oven looks sketch map
Fig. 2 is the side-looking structural representation of the utility model air interchanger baking oven
Fig. 3 be the utility model air interchanger baking oven attach the TV structure sketch map
Fig. 4 is the oven drying method step block diagram of the utility model air interchanger
In the accompanying drawing: 1, nitrogen pot, 2, the nitrogen pot valve, 3, the air bag inlet manifold, 4, controller, 5, the oxygen detection appearance, 6, chamber door; 7, casing, 8, the air bag air intake valve, 9, the air bag air inlet is responsible for, 10, operating room's air intake valve, 11, aspiration pump; 12, air bags valve, 13, air bags is responsible for, 14, the air bag air intake branch, 15, operating room's air inlet pipe, 16, the air bags arm; 17, air bag, 18, the air bag fixed bar, 19, rotating disk, 20, the heat-insulation layer filler, 21, the operating room.
The specific embodiment
Baking oven below in conjunction with the utility model air interchanger is an example, specifies the concrete structure and the method for work step of the utility model, so that understand the utility model better.
Like accompanying drawing 1,2, shown in 3, the baking oven of the disclosed air interchanger of the utility model comprises that parts such as casing 7, operating room 21, air bag 17, aspiration pump 11, controller 4 and heating component form.
Described casing 7 has chamber door 6; The sealing that casing 7 and chamber door are 6 does not have strict requirement than the vacuum baking oven; Casing 7 materials can be corrosion resistant plate, galvanized steel plain sheet or plastic-blasting steel plate; The shape of casing 7 and specification are nonrestrictive, can do the respective design adjustment according to instructions for use and condition.
In casing 7 outsides, be provided with a nitrogen pot 1, the air bag inlet manifold 3 of nitrogen pot 1 is responsible for 9 with the air bag air inlet and links to each other.The air bag air inlet is responsible for 9 and is responsible for 13 with air bags and all is positioned at the distolateral indoor of casing 7, and is fixed on three lateral walls of casing 7.Air bag air intake branch 14 1 ends are responsible for 9 with the air bag air inlet and are connected; Air bag inlet manifold 3 and 9 connecting places to each air bag air intake branch 14 is responsible in the air bag air inlet and the air bag air inlet is responsible between 9 connecting places; Adorn an air bag air intake valve 8, air bag air intake branch 14 other ends pass operating room 21 and are connected with the air admission hole of air bag 17.Air bags arm 16 1 ends are responsible for 13 with air bags and are connected; The other end passes operating room 21 and is connected with the steam vent of air bag 17; The air bags person in charge 13 the other end is connected with aspiration pump 11; Be responsible for 13 connecting places to the air bags person in charge 13 and aspiration pump 11 connecting places in air bags arm 16 and air bags, air bags valve 12 is housed.Operating room's air inlet pipe 15 is responsible for 9 with the air bag air inlet and is connected, and leads in the operating room 7.Be responsible between 9 connecting places and the operating room's air inlet pipe 15 air bag inlet manifold 3 and air bag air inlet, adorn operating room's air intake valve 10.
The baking oven method of work step of air interchanger of the present invention is as shown in Figure 4, the steps include:
1), open oven door 6, oven door 6 is closed after drying article are put into baking oven rotating disk 19;
2), set maximum inflation pressure, minimum emptying pressure and operating room's 21 oxygen density values of air bags 17 and baking oven heating-up temperature, baking temperature and stoving time by controller 4;
3), open nitrogen pot valve 2 and air bag air intake valve 8; 17 inflations of 1 pair of air bag of nitrogen pot, when air bag 17 was inflated to setup pressure value, air bag air intake valve 8 was closed with nitrogen pot valve 2 simultaneously; Air bag 17 inflations stop, and the gas that the operating room is 21 li is extruded by full air bag 17 row pressures;
4), open air bags valve 12, aspiration pump 11 is started working, nitrogen are drawn out of and send in the operating room 21 in the air bag 17;
5), when air bag 17 internal gas pressures are reduced to minimum emptying force value, air bags valve 12 is closed, aspiration pump 11 quits work, the gas that the operating room is 21 li is by nitrogen replacement;
6), the oxygen concentration of oxygen detection appearance 5 on-line measurement operating rooms 21, during greater than setting value, baking oven repeats 3 to 5 program cycle automatically like oxygen concentration;
7), when oxygen concentration is lower than setting value, nitrogen air intake valve 8 is closed, the baking oven heating component gets into the dry working procedure of baking, and article are carried out drying;
8), when reaching drying and requiring, program stops, baking oven rotating disk 19 stops operating, dry run finishes, treat that baking oven cools off naturally after, the taking-up article that are dried.
Also can set PLC controller 4 after baking oven rotating disk 19 stops operating, nitrogen pot valve 2 is opened with operating room's air intake valve 10 simultaneously, directly charges into nitrogen to operating room 21 by nitrogen pot 1, and operating room 21 is cooled off with article.
Claims (4)
1. a device that is used for baking oven and the gas displacement of sintering furnace operating room comprises air bag, aspiration pump; It is characterized in that: its shape of described air bag is that the cross section is oval-shaped cylinder; Be positioned at four angles of operating room, three row annulus are arranged on the air bag, 6 annulus of every row evenly distribute along the elliptic cylinder bus; Said three row annulus are enclosed within respectively on the air bag fixed bar, have air admission hole and steam vent on the air bag.
2. a kind of device that is used for baking oven and the gas displacement of sintering furnace operating room according to claim 1; It is characterized in that: also comprise air bag inlet manifold, the air bag air inlet person in charge, air bag air intake branch, the air bags person in charge, air bags arm and operating room's air inlet pipe; The air bag inlet manifold links to each other with the casing external air source; The air bag inlet manifold is responsible for the air bag air inlet and links to each other, and can be to operating room and airbag aeration.The air bag air inlet person in charge and air bags are responsible for the side room that is positioned at casing one end; And be fixed on three lateral walls of casing; Said air bag air intake branch is responsible for air bags with the air bag air inlet person in charge respectively with the air bag exhaust branch pipe and is connected; And corresponding with the position of opening of air bag air admission hole and steam vent, and pass the operating room and be connected with air bag, the air bag air inlet is responsible for inlet end and is connected with the air bag air inlet pipe; The air bags arm is connected with aspiration pump, and operating room's air inlet pipe is responsible for the air bag air inlet and is connected.
3. a kind of device that is used for baking oven and the gas displacement of sintering furnace operating room according to claim 1; It is characterized in that: also comprise air bag air intake valve, air bags valve and operating room's air intake valve; Said operating room air intake valve is installed in the air bag inlet manifold and the air bag air inlet is responsible between connecting place and the operating room's air inlet pipe; The air bag air intake valve is installed in the air bag inlet manifold and connecting place to each air bag air intake branch is responsible in the air bag air inlet and the air bag air inlet is responsible between the connecting place; Said air bags tube valve is installed in air bags and is responsible for, and is connected with aspiration pump.
4. a kind of device that is used for baking oven and the gas displacement of sintering furnace operating room according to claim 1 is characterized in that: said aspiration pump is the dual-purpose aspiration pump of exhaust of bleeding, and an end is responsible for air bags and is connected, and an end is connected with operating room's air inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204348561U CN202304328U (en) | 2011-11-04 | 2011-11-04 | Device for gas replacement of working chambers of oven/sintering furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204348561U CN202304328U (en) | 2011-11-04 | 2011-11-04 | Device for gas replacement of working chambers of oven/sintering furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202304328U true CN202304328U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204348561U Expired - Fee Related CN202304328U (en) | 2011-11-04 | 2011-11-04 | Device for gas replacement of working chambers of oven/sintering furnaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202304328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393134A (en) * | 2011-11-04 | 2012-03-28 | 合肥华宇橡塑设备有限公司 | Device for gas displacement of working chambers of oven and sintering furnace |
-
2011
- 2011-11-04 CN CN2011204348561U patent/CN202304328U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393134A (en) * | 2011-11-04 | 2012-03-28 | 合肥华宇橡塑设备有限公司 | Device for gas displacement of working chambers of oven and sintering furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20161104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |