CN211363387U - Contain PI membrane production with tail gas heat recovery system - Google Patents
Contain PI membrane production with tail gas heat recovery system Download PDFInfo
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- CN211363387U CN211363387U CN201922368212.6U CN201922368212U CN211363387U CN 211363387 U CN211363387 U CN 211363387U CN 201922368212 U CN201922368212 U CN 201922368212U CN 211363387 U CN211363387 U CN 211363387U
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- 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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Abstract
The utility model relates to a contain PI production of membrane and use tail gas heat recovery system, including waste gas heat exchanger and film drying cabinet, waste gas heat exchanger includes air inlet seal head, barrel and the head of giving vent to anger, air inlet seal head and the head of giving vent to anger are connected at the upper and lower end of barrel, barrel in-connection upper tube plate and lower tube plate, connect a plurality of heat exchange tubes between upper tube plate and the lower tube plate, the heat exchange tube is upper and lower to communicate air inlet seal head and the head of giving vent to anger respectively, the barrel both sides are connected lower waste gas inlet tube and upper waste gas exit tube respectively, lower waste gas inlet tube connects film drying cabinet exhaust outlet, upper waste gas exit tube connects the condenser, connect the air inlet fan on the air inlet seal head, the air inlet of film drying cabinet is connected to the head of giving vent to anger in-connection electric heater, barrel one side still connects the condensate pipe, contain PI production, and the waste gas is adopted to preheat the air, so that the energy and the cost are greatly saved.
Description
Technical Field
The utility model relates to a film production facility especially relates to a contain PI tail gas heat recovery system for membrane production.
Background
After the PI film is formed from the polyamide solution, it is necessary to enter a film drying oven, evaporate AC from the solution by high-temperature air, and then recover it by cooling. The boiling point of AC is more than 150 deg.C, so the temperature of heating air is more than 180 deg.C, and when AC is recovered, the tail gas temperature is reduced by cooling method, so that AC is condensed and recovered.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects and carries out research and improvement to provide a tail gas heat recovery system for PI-containing membrane production.
The utility model discloses the technical scheme who adopts as follows:
the utility model provides a contain PI production for membrane exhaust gas heat recovery system, includes waste gas heat exchanger and film drying cabinet, waste gas heat exchanger includes admit air head, barrel and the head of giving vent to anger, admit air head and the head of giving vent to anger connect at the upper and lower end of barrel, barrel in-connection upper tube plate and low tube plate, connect a plurality of heat exchange tubes between upper tube plate and the low tube plate, the heat exchange tube upper and lower intercommunication respectively admit air the head and give vent to anger the head, waste gas advances pipe and last waste gas exit tube under the barrel both sides are connected respectively, waste gas advances union coupling film drying cabinet exhaust outlet down, it connects the condenser to go up the waste gas exit tube, connect the air inlet fan on the head of admitting air, the air intlet of film drying cabinet is connected to the head of giving vent to anger, it connects electric heater to.
As a further improvement of the above technical solution:
the lower tube plate is obliquely arranged, and the condensing tube is connected to one side of the lowest end of the upper surface of the lower tube plate of the barrel.
The air inlet fan adopts an axial flow fan
The utility model has the advantages as follows: according to the tail gas heat recovery system for PI-containing membrane production, the waste gas heat exchanger absorbs heat in waste gas to heat air, so that energy required by heating air can be reduced, condensed water required by condensing and recovering AC is saved, energy is greatly saved, and production cost is saved.
Drawings
Fig. 1 is the utility model provides a contain PI membrane production with tail gas heat recovery system's schematic structure diagram.
In the figure: 1. a film drying oven; 11. an exhaust gas outlet; 12. an air inlet; 2. an air inlet end enclosure; 3. a barrel; 31. an upper tube sheet; 32. a lower tube plate; 33. a heat exchange pipe; 34. a lower exhaust gas inlet pipe; 35. an upper exhaust gas outlet pipe; 36. a condensate pipe; 4. an air outlet end enclosure; 41. an electric heater; 5. a condenser; 6. an air inlet fan.
Detailed Description
The following describes a specific embodiment of the present embodiment with reference to the drawings.
As shown in fig. 1, the system for recovering heat from exhaust gas for PI-containing membrane production in this embodiment comprises a waste gas heat exchanger and a membrane drying box 1, wherein the waste gas heat exchanger comprises an inlet end enclosure 2, a cylinder 3 and an outlet end enclosure 4, the inlet end enclosure 2 and the outlet end enclosure 4 are connected to the upper end and the lower end of the cylinder 3, an upper tube plate 31 and a lower tube plate 32 are connected to the cylinder 3, a plurality of heat exchange tubes 33 are connected between the upper tube plate 31 and the lower tube plate 32, the lower tube plate 32 is obliquely arranged, the upper end and the lower end of each heat exchange tube 33 are respectively communicated with the inlet end enclosure 2 and the outlet end enclosure 4, the two sides of the cylinder 3 are respectively connected with a lower waste gas inlet tube 34 and an upper waste gas outlet tube 35, the lower waste gas inlet tube 34 is connected with a waste gas outlet 11 of the membrane drying box 1, the upper waste gas outlet tube 35 is connected with a condenser 5, the inlet, the cylinder 3 is also connected with a condensed liquid pipe 36 on one side, and the condensed liquid pipe 36 is connected with the cylinder 3 on the side of the lowest end of the upper surface of the lower tube plate 32.
When the tail gas heat recovery system for PI-containing membrane production is used, when the system is started, because the membrane drying box 1 does not generate waste gas, air can only be heated by the electric heater 41, the electric heater 41 needs to be started with larger power, the heated air enters the membrane drying box 1 from the air inlet 12 to be subjected to AC evaporation, the waste gas generated after evaporation is discharged from the waste gas outlet 11, enters the space between the upper tube plate 31 and the lower tube plate 32 of the cylinder 3 through the lower waste gas inlet tube 34 and exchanges heat with the air entering the heat exchange tube 33 to realize air preheating, the power of the electric heater 41 can be reduced after the air is preheated, the air is continuously heated and is used by the membrane drying box 1, the waste gas is discharged from the waste gas outlet 11 after exchanging heat with the air and is sent to the condenser 5 to condense and recover AC through the condenser 5, and part of the AC is condensed when the waste gas is preheated in the cylinder 3, this portion of the AC is collected by draining through a condensate line 36.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.
Claims (3)
1. The utility model provides a contain PI production with tail gas heat recovery system which characterized in that: the waste gas heat exchanger comprises a waste gas heat exchanger and a film drying box (1), wherein the waste gas heat exchanger comprises an air inlet seal head (2), a cylinder body (3) and an air outlet seal head (4), the air inlet seal head (2) and the air outlet seal head (4) are connected to the upper end and the lower end of the cylinder body (3), an upper tube plate (31) and a lower tube plate (32) are connected in the cylinder body (3), a plurality of heat exchange tubes (33) are connected between the upper tube plate (31) and the lower tube plate (32), the upper end and the lower end of each heat exchange tube (33) are respectively communicated with the air inlet seal head (2) and the air outlet seal head (4), the two sides of the cylinder body (3) are respectively connected with a lower waste gas inlet tube (34) and an upper waste gas outlet tube (35), the lower waste gas inlet tube (34) is connected with a waste gas outlet (11) of the film drying box (1, the air outlet end socket (4) is connected with an air inlet (12) of the film drying box (1), the electric heater (41) is connected in the air outlet end socket (4), and a condensate pipe (36) is further connected to one side of the barrel body (3).
2. The tail gas heat recovery system for PI-containing membrane production as claimed in claim 1, wherein: the lower tube plate (32) is obliquely arranged, and the condensation tube (36) is connected to one side of the lowest end of the upper surface of the lower tube plate (32) of the barrel (3).
3. The tail gas heat recovery system for PI-containing membrane production as claimed in claim 1, wherein: the air inlet fan (6) adopts an axial flow fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922368212.6U CN211363387U (en) | 2019-12-25 | 2019-12-25 | Contain PI membrane production with tail gas heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922368212.6U CN211363387U (en) | 2019-12-25 | 2019-12-25 | Contain PI membrane production with tail gas heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211363387U true CN211363387U (en) | 2020-08-28 |
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ID=72163464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922368212.6U Active CN211363387U (en) | 2019-12-25 | 2019-12-25 | Contain PI membrane production with tail gas heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211363387U (en) |
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2019
- 2019-12-25 CN CN201922368212.6U patent/CN211363387U/en active Active
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