CN106895697A - A kind of device drying oven of energy-saving household electrical appliances two - Google Patents
A kind of device drying oven of energy-saving household electrical appliances two Download PDFInfo
- Publication number
- CN106895697A CN106895697A CN201710259328.9A CN201710259328A CN106895697A CN 106895697 A CN106895697 A CN 106895697A CN 201710259328 A CN201710259328 A CN 201710259328A CN 106895697 A CN106895697 A CN 106895697A
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- Prior art keywords
- drying oven
- household electrical
- electrical appliances
- air
- drying
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/02—Heating arrangements using combustion heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of device drying oven of energy-saving household electrical appliances two, it is characterized in including two device pipelines, drying oven, hot air circulating system, purging system and exhaust gas purification system；Two device pipeline tops set drying oven, drying oven both ends open；Drying oven top sets hot air circulating system and exhaust gas purification system, while having purging system in two device pipeline lower disposeds；Exhaust gas purification system connects air heat exchanger and Duo Tai drying ovens, exhaust emissions to ambient atmosphere；The device of household electrical appliances two completes baking operation by the port of export that two device pipelines move to drying oven from the arrival end of drying oven.It is an advantage of the invention that having reclaimed fume afterheat compared with limits, energy consumption is reduced, improve hot blast efficiency；Greatly reduce volatile oil and dodge quick-fried possibility, it is ensured that the safe operation of equipment and the environment protection standard discharge of tail gas；The two device drying ovens group workshop that fuel is high heating value natural gas large-scale production is particularly well-suited to, equipment complex investment is reduced.
Description
Technical field
The invention belongs to household electrical appliances production field, more particularly to a kind of device drying oven of energy-saving household electrical appliances two.
Background technology
The device of household electrical appliances two refers to condenser and evaporator, is stamped to form by high velocity ram machine.To ensure product shape and processing matter
Amount, needs to use lubricating oil in punching course, and the final mass for guarantee product in subsequent production will with performance need
Lubricating oil is removed.Generally two devices are carried out using the hot blast of high temperature and high speed using two device drying ovens in white goods manufacturing enterprise
Drying so that the lubricating oil for being attached to two device surfaces quickly volatilizees to meet subsequent handling processing needs.Existing two devices drying oven
Use automatic transmission system, it is adaptable to the condenser of the product such as air-conditioner, refrigerator and the high-volume of evaporator part, continuous life more
Produce.Workpiece is entered after drying oven, it is necessary to be accelerated the evaporation rate of workpiece surface volatile oil by high-temperature hot-air；Then by a large amount of
Circulated air by high concentration volatile oil gas dilution, to accelerate evaporation rate；Then by being placed in the air exhausting device on top by tail gas
Discharge；It is last in line to air.
Using oil gas, natural gas etc. as heating source, oil gas, natural gas and combustion-supporting sky more than existing two devices drying oven
Gas carries out mixed combustion in combustion chamber and produces high-temperature hot-air to be used for drying at normal temperatures.Dry the tail gas after workpiece mostly
Without using just discharging, and exhaust temperature is higher easily dodges quick-fried.Because above feature is caused, drying energy consumption is big, and hot-air seasoning is imitated
Rate is low, and situations such as waste gas utilization is weak, production security is poor, this not only causes great energy waste also to production safety band
Great hidden danger is carried out.
The content of the invention
To overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of device drying oven of energy-saving type household electrical appliances two, energy
Enough under conditions of the device surface attachment volatile oil of flash baking two is met, the utilization waste heat from tail gas of limits, reducing energy consumption；Reduce
Tail gas dodges safe operation that is quick-fried, ensureing equipment.
To achieve the above object, a kind of device drying oven of energy-saving household electrical appliances two of the present invention, be characterized in including two device pipelines,
Drying oven, hot air circulating system, purging system and exhaust gas purification system；Two described device pipeline tops set drying oven, drying
Stove both ends open, drying oven is passed in and out for the device of household electrical appliances two；Described drying oven top sets hot air circulating system and exhaust gas purification system,
There is purging system in two device pipeline lower disposeds simultaneously；Described exhaust gas purification system connection air heat exchanger and Duo Tai drying
Stove, exhaust emissions to ambient atmosphere；The device of household electrical appliances two moves to going out for drying oven by two device pipelines from the arrival end of drying oven
Mouth end completes baking operation.
Further, the furnace shell outside of described drying oven is made up of heat insulation flame retardant material of stainless steel, inside；Its
Two ends are provided with opening, and for the transmission of the device of household electrical appliances two, openings of sizes matches with the types No. two, size dried.
Further, two described device pipelines use Automatic Control, types No. two, the size of its width and drying
Match, transfer rate is 0.8-1.0m/s.
Further, described hot air circulating system includes that fuel conduit, combustion fan, combustion air pipeline, air are changed
Hot device, combustion chamber, hot air circulation pipeline, air door and air distribution plate；It is respectively provided with described combustion air pipeline and fuel conduit
There are air control valve, fuel control valve, for adjusting air and fuel flow rate；Burner is installed in described combustion chamber.Through
The fuel for crossing combustion air pipeline, the air of combustion fan conveying and fuel conduit conveying is premixed in burner, through burner
Drying stove heat is entered finally by the hole slot on air distribution plate through air door to inflow air distribution plate by hot air circulation pipeline after igniting
It is attached to the volatile oil of the device surfaces externally and internally of household electrical appliances two.
Further, described air heat exchanger is pipe heat exchanger.
Further, described burner is pre-mixing type combustion apapratus, its power, model and fuel parameter, drying oven thermal technology
Match parameters.
Further, described air door and air distribution plate are made using stainless steel；The size of described air distribution plate and hole
The length and width size of the arrangement of groove and drying oven and types No. two of drying, size match.
Further, described purging system includes compressed air line supervisor, branch pipe and is arranged on compressed air line
Compressed air total valve, filter and pressure gauge on supervisor are used to control flow, flow velocity and the cleanliness factor of compressed air；Each
Pipe end is provided with blow valve port, for the purging to the device of household electrical appliances two, to ensure that volatile oil is fully drained in the device U of household electrical appliances two pipes；
Branch road regulating valve is provided with each branch pipe, the purging effect for adjusting, ensureing each blow valve port.
Further, the arrangement and quantity of the blow valve port and the length and width size of drying oven and types No. two, the chi of drying
It is very little to match.
Further, described exhaust gas purification system includes smoke exhaust fan, smoke discharging pipe, temperature-detecting device, offgas duct
Road and chimney；Described smoke discharging pipe sets house steward and two groups of branch pipes with drying oven connect setting, two groups of described smoke discharging pipes
Device for detecting temperature is equipped near branch pipe, to ensure drying effect；Smoke exhaust fan is arranged on smoke discharging pipe branch pipe；Described
The two ends of exhaust pipe are connected with air heat exchanger, chimney respectively；After smoke discharging pipe collects the heat smoke of many drying ovens
Feeding air heat exchanger, heat smoke and combustion air in the air heat exchanger fully after heat exchange through exhaust pipe from smoke stack emission to
Ambient atmosphere, to greatest extent using fume afterheat.
Further, described smoke discharging pipe house steward is provided with degreasing unit, the volatile oil in tail gas is filtered, both
Ensure heat transfer effect, the environment protection standard of efflux gas of air heat exchanger, the quick-fried peace that ensure that equipment of sudden strain of a muscle of volatile oil is prevented again
Row for the national games.
Compared with prior art, the advantage of a kind of pair of device drying oven of preheating type household electrical appliances two of the invention is as follows：
1st, the present invention has reclaimed fume afterheat compared with limits, reduces energy consumption, improves hot blast efficiency；
2nd, the present invention greatly reduces the quick-fried possibility of volatile oil sudden strain of a muscle, it is ensured that the safe operation of equipment and the environmental protection of tail gas
Qualified discharge；
3rd, it is the two device drying ovens group workshop of high heating value natural gas large-scale production the present invention is especially suitable for fuel, reduces
Equipment complex investment.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is a kind of structural representation of the device drying oven of energy-saving household electrical appliances two of the present invention.
Specific embodiment
With reference to embodiment, the invention will be further described.
As shown in figure 1, a kind of device drying oven of energy-saving household electrical appliances two, is characterized in including two device pipelines 3, drying oven 1, heat
Air circulating system, purging system and exhaust gas purification system；The top of two device pipeline 3 sets drying oven 1, and the both ends open of drying oven 1 is supplied
Two device of household electrical appliances 26 passes in and out drying oven 1；The top of drying oven 1 sets hot air circulating system and exhaust gas purification system, while in the conveying of two devices
The lower disposed of line 3 has purging system；Exhaust gas purification system connects air heat exchanger 4 and Duo Tai drying ovens 1, exhaust emissions to the external world
Air；The device 26 of household electrical appliances two completes drying by the port of export that two device pipelines 3 move to drying oven 1 from the arrival end of drying oven 1
Operation.
The furnace shell outside of drying oven 1 is by stainless steel, inside by heat insulation flame retardant material is made；Its two ends is provided with out
Mouthful, openings of sizes matches with the model of two device of household electrical appliances 26, size dried.
Two device pipelines 3 use Automatic Control, and its width matches with the model of two device of household electrical appliances 26, size dried,
Transfer rate is 0.8-1.0m/s.
Hot air circulating system includes fuel conduit 12, combustion fan 5, combustion air pipeline 11, air heat exchanger 4, burning
Room 2, hot air circulation pipeline 13, air door 8 and air distribution plate 9；Air is respectively arranged with combustion air pipeline 11 and fuel conduit 12
Regulating valve 20, fuel control valve 21, for adjusting air and fuel flow rate；Burner 17 is installed in combustion chamber 2.By combustion-supporting
The fuel of air pipe line 11, the air of the conveying of combustion fan 5 and the conveying of fuel conduit 12 premix in burner 17, through burner
17 ignite after by hot air circulation pipeline 13 through air door 8 to flow into air distribution plate 9, finally by air distribution plate 9 hole slot enter dry
Dry stove 1 heats the volatile oil for being attached to the surfaces externally and internally of two device of household electrical appliances 26.
Air heat exchanger 4 is pipe heat exchanger.
Burner 17 is pre-mixing type combustion apapratus, and its power, model and fuel parameter, drying oven thermal parameter match.
Air door 8 and air distribution plate 9 are made using stainless steel；The size of air distribution plate 9 and the arrangement of hole slot and drying oven 1
Length and width size and the model of two device of the household electrical appliances of drying 26, size match.
The pressure that purging system includes compressed air line supervisor 14, branch pipe 27 and is arranged on compressed air line supervisor 14
Contracting air total valve 22, filter 23 and pressure gauge 24 are used to control flow, flow velocity and the cleanliness factor of compressed air；Each branch pipe 27
End is provided with blow valve port, for the purging to the device 26 of household electrical appliances two, to ensure that volatile oil is fully drained in the device U of household electrical appliances two pipes；
Branch road regulating valve 25 is provided with each branch pipe 27, the purging effect for adjusting, ensureing each blow valve port 18.
The arrangement and quantity of blow valve port 18 match with the length and width size of drying oven and types No. two of drying, size.
Exhaust gas purification system includes smoke exhaust fan 7, smoke discharging pipe 10, temperature-detecting device 6, exhaust pipe 15 and chimney
16；Smoke discharging pipe 10 sets house steward and two groups of branch pipes with the connect setting of drying oven 1, near two groups of described smoke discharging pipe branch pipes
Device for detecting temperature 6 is provided with, to ensure drying effect；Smoke exhaust fan 7 is arranged on smoke discharging pipe branch pipe；The head of exhaust pipe 15
Tail end is connected with air heat exchanger 4, chimney 16 respectively；Smoke discharging pipe 10 is sent into empty after the heat smoke of many drying ovens 1 is collected
Gas heat exchanger 4, heat smoke is emitted into through exhaust pipe 15 after fully being exchanged heat in air heat exchanger 4 with combustion air from chimney 16
Ambient atmosphere, to greatest extent using fume afterheat.
Smoke discharging pipe house steward is provided with degreasing unit 19, and the volatile oil in tail gas is filtered, and both ensures air heat-exchange
The heat transfer effect of device 4, the environment protection standard of efflux gas, prevent the quick-fried safe operation that ensure that equipment of sudden strain of a muscle of volatile oil again.
When the device drying oven of household electrical appliances two runs, the device of household electrical appliances two enters in drying oven 1 through two device pipeline 3, is produced in combustion chamber 2
Heat smoke enters air distribution plate 9 by hot air circulation pipeline 13 through the water conservancy diversion of air door 8, by the hole slot on air distribution plate 9 enter drying oven 1 in
The device 26 of household electrical appliances two is contacted, and the volatile oil on the device surface of household electrical appliances two is quick in heat smoke convection current to volatilize and arranged by exhaust gas purification system
Walk；Through high temperature after a while in drying oven 1, the volatile oil of fin surface is vapored away the device 26 of household electrical appliances two completely.Household electrical appliances
Volatile oil in two devices U pipes long, the compressed air purging of 1 arrival end blow valve port of drying stove 18 blowout part volatile oil, in burner hearth
Volatile oil gasification expansion in U pipes long after interior heating, discharge part volatile oil, then through the compressed air of rear portion blow valve port 18 in burner hearth
Purging, volatile oil is fully drained in U pipes long.Finally, the device 26 of household electrical appliances two leaves drying oven 1 and completes baking operation.
When 1 stable operation of drying oven, the registration of two temperatures monitoring device 6 is maintained at 170 DEG C or so, and temperature difference is not at two
More than 5 DEG C；Combustion air fully to exchange heat with heat smoke in air heat exchanger 4 and be preheated to 150 DEG C by normal temperature.
Because fuel is the cost and operation safety that high heating value natural gas consider device fabrication, natural gas is not entered herein
Row preheating.It is 130 DEG C that the tail gas that final many drying ovens 1 collect reaches the temperature of degreasing unit 19, through chimney after being filtered through oil removing
16 are emitted into air.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any to be familiar with sheet
Those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be covered
Within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined by claim is defined.
Claims (10)
1. the device drying oven of a kind of energy-saving household electrical appliances two, it is characterised in that：Followed including two device pipelines (3), drying oven (1), hot blast
Loop systems, purging system and exhaust gas purification system；Two described device pipeline (3) tops set drying oven (1), drying oven (1) two
End opening；Described drying oven (1) top sets hot air circulating system and exhaust gas purification system, while under two device pipelines (3)
Portion is disposed with purging system；Described exhaust gas purification system connects air heat exchanger (4) and many drying ovens (1), exhaust emissions
To ambient atmosphere；The device of household electrical appliances two (26) move to drying oven (1) by two device pipelines (3) from the arrival end of drying oven (1)
The port of export completes baking operation.
2. the device drying oven of a kind of energy-saving household electrical appliances two according to claim 1, it is characterised in that：Two described device pipelines
(3) Automatic Control is used, its width matches with household electrical appliances two device (26) model, size for drying, and transfer rate is 0.8-
1.0m/s。
3. the device drying oven of a kind of energy-saving household electrical appliances two according to claim 1, it is characterised in that：Described drying oven (1)
Furnace shell outside be made up of heat insulation flame retardant material of stainless steel, inside；Its two ends is provided with opening, openings of sizes and drying
Household electrical appliances two device (26) model, size matches.
4. the device drying oven of a kind of energy-saving household electrical appliances two according to claim 1, it is characterised in that：Described hot air circulation system
System includes fuel conduit (12), combustion fan (5), combustion air pipeline (11), air heat exchanger (4), combustion chamber (2), hot blast
Circulation line (13), air door (8) and air distribution plate (9)；Set respectively on described combustion air pipeline (11) and fuel conduit (12)
It is equipped with air control valve (20), fuel control valve (21)；Burner (17) is installed in described combustion chamber (2).
5. the device drying oven of a kind of energy-saving household electrical appliances two according to any one of claim 1 and 5, it is characterised in that：Described
Air heat exchanger (4) is pipe heat exchanger.
6. the device drying oven of a kind of energy-saving household electrical appliances two according to any one of claim 1 and 4, it is characterised in that：Described
Burner (17) is pre-mixing type combustion apapratus, and its power, model and fuel parameter, drying oven thermal parameter match.
7. the device drying oven of a kind of energy-saving household electrical appliances two according to any one of claim 1 and 4, it is characterised in that：Described
Air door (8) and air distribution plate (9) are made using stainless steel；The size of described air distribution plate (9) and the arrangement of hole slot and drying
The length and width size of stove (1) and household electrical appliances two device (26) model of drying, size match.
8. the device drying oven of a kind of energy-saving household electrical appliances two according to claim 1, it is characterised in that：Described purging system bag
The compressed air total valve for including compressed air line supervisor (14), branch pipe (27) and being arranged on compressed air line supervisor (14)
(22), filter (23) and pressure gauge (24)；Each branch pipe (27) end is provided with blow valve port；Branch road is provided with each branch pipe (27)
Regulating valve (25).
9. the device drying oven of a kind of energy-saving household electrical appliances two according to claim 1, it is characterised in that：Described blow valve port (18)
Arrangement and the length and width size and types No. two of drying of quantity and drying oven, size match.
10. the device drying oven of a kind of energy-saving household electrical appliances two according to claim 1, it is characterised in that：Described tail gas clean-up
System includes smoke exhaust fan (7), smoke discharging pipe (10), temperature-detecting device (6), exhaust pipe (15) and chimney (16)；It is described
Smoke discharging pipe (10) set house steward and two groups of branch pipes with drying oven (1) connect setting, two groups of described smoke discharging pipe branch pipes are attached
Closely it is equipped with device for detecting temperature (6)；Smoke exhaust fan (7) is on smoke discharging pipe branch pipe；Described exhaust pipe (15)
Two ends are connected with air heat exchanger (4), chimney (16) respectively；Described smoke discharging pipe house steward is provided with degreasing unit (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259328.9A CN106895697A (en) | 2017-04-20 | 2017-04-20 | A kind of device drying oven of energy-saving household electrical appliances two |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259328.9A CN106895697A (en) | 2017-04-20 | 2017-04-20 | A kind of device drying oven of energy-saving household electrical appliances two |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106895697A true CN106895697A (en) | 2017-06-27 |
Family
ID=59197495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710259328.9A Pending CN106895697A (en) | 2017-04-20 | 2017-04-20 | A kind of device drying oven of energy-saving household electrical appliances two |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106895697A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2665640Y (en) * | 2003-12-05 | 2004-12-22 | 柯瑞敏 | Apparatus for drying accessory machining smear |
| CN2919157Y (en) * | 2005-12-31 | 2007-07-04 | 广东科龙电器股份有限公司 | Air blowing device for heat exchanger degreasing and drying |
| CN201397021Y (en) * | 2009-05-06 | 2010-02-03 | 浙江华尔达汽车空调有限公司 | Degreasing drying device |
| JP2011012337A (en) * | 2009-07-01 | 2011-01-20 | Hi Tech Systems Kk | Heating system utilizing waste heat in drying furnace |
| CN203928625U (en) * | 2014-07-01 | 2014-11-05 | 约克广州空调冷冻设备有限公司 | Degreasing unit for fin-tube type heat exchanger |
| CN104567306A (en) * | 2014-12-16 | 2015-04-29 | 芜湖美威包装品有限公司 | Drying oven used for heat exchanger |
| CN106052197A (en) * | 2016-05-30 | 2016-10-26 | 常州市常蒸热交换器科技有限公司 | Flat plate type evaporator and manufacturing method thereof |
| CN206724665U (en) * | 2017-04-20 | 2017-12-08 | 中冶华天工程技术有限公司 | A kind of device drying oven of energy-saving household electrical appliances two |
-
2017
- 2017-04-20 CN CN201710259328.9A patent/CN106895697A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2665640Y (en) * | 2003-12-05 | 2004-12-22 | 柯瑞敏 | Apparatus for drying accessory machining smear |
| CN2919157Y (en) * | 2005-12-31 | 2007-07-04 | 广东科龙电器股份有限公司 | Air blowing device for heat exchanger degreasing and drying |
| CN201397021Y (en) * | 2009-05-06 | 2010-02-03 | 浙江华尔达汽车空调有限公司 | Degreasing drying device |
| JP2011012337A (en) * | 2009-07-01 | 2011-01-20 | Hi Tech Systems Kk | Heating system utilizing waste heat in drying furnace |
| CN203928625U (en) * | 2014-07-01 | 2014-11-05 | 约克广州空调冷冻设备有限公司 | Degreasing unit for fin-tube type heat exchanger |
| CN104567306A (en) * | 2014-12-16 | 2015-04-29 | 芜湖美威包装品有限公司 | Drying oven used for heat exchanger |
| CN106052197A (en) * | 2016-05-30 | 2016-10-26 | 常州市常蒸热交换器科技有限公司 | Flat plate type evaporator and manufacturing method thereof |
| CN206724665U (en) * | 2017-04-20 | 2017-12-08 | 中冶华天工程技术有限公司 | A kind of device drying oven of energy-saving household electrical appliances two |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170627 |
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| RJ01 | Rejection of invention patent application after publication |