CN209752226U - Falling film evaporation device for nylon production - Google Patents
Falling film evaporation device for nylon production Download PDFInfo
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- CN209752226U CN209752226U CN201920138785.7U CN201920138785U CN209752226U CN 209752226 U CN209752226 U CN 209752226U CN 201920138785 U CN201920138785 U CN 201920138785U CN 209752226 U CN209752226 U CN 209752226U
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- evaporation device
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Abstract
The utility model discloses a falling film evaporation device for nylon production, which comprises a shell, wherein a heating cover is sleeved outside the shell, the top end of the heating cover is connected with a heating medium inlet, the bottom of the heating cover is connected with a heating medium outlet, the top of the shell is provided with a feed inlet, a buffer chamber is arranged in the shell, the bottom of the buffer chamber is provided with a feed distributing plate, the bottom of the feed distributing plate is uniformly provided with a plurality of heat exchange tubes, the shell is provided with a steam inlet on the side wall of the top of the heat exchange tubes, the bottom of the shell is provided with a grid discharging plate, one side of the bottom of the shell is provided with a condensed water outlet, one side of the top of the shell is provided with an exhaust port, the bottom of the other side of the shell is provided with a discharge port, the discharge port is arranged at the, after the feed liquid is buffered by the buffer chamber, the feed liquid flows in a film shape and descends along the inner side of the heat exchange tube, so that the film forming rate is improved.
Description
Technical Field
The utility model relates to a nylon apparatus for producing technical field specifically is a falling liquid film evaporation plant of nylon production.
Background
The thickness of the heat exchange tube in the traditional falling film evaporation device can influence the film formation of the feed liquid, so that the productivity is reduced, the waste of the feed liquid can be caused, the moisture in the feed liquid is not thoroughly removed, and the influence on the production of nylon can be caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a falling liquid film evaporation plant is produced to nylon to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a falling film evaporation device for nylon production comprises a shell, wherein a heating cover is sleeved outside the shell, the top end of the heating cover is connected with a heating medium inlet, the bottom of the heating cover is connected with a heating medium outlet, the top of the shell is provided with a feed inlet, a buffer chamber is arranged in the shell, the bottom of the buffer chamber is provided with a feed distribution plate, the bottom of the feed distribution plate is uniformly provided with a plurality of heat exchange tubes, the shell is provided with a steam inlet on the side wall of the top of each heat exchange tube, the bottom of the shell is provided with a grid discharge plate, one side of the bottom of the shell is provided with a condensate water outlet, one side of the top of the shell is provided with an exhaust port, the bottom of the other side of the shell is provided with a discharge port, the discharge port is arranged at the bottom of the grid discharge plate, the discharge port is communicated with a feed, and the other opening of the three-way valve is connected with an injection pump through a pipeline, the injection pump is communicated with the air inlet of the condenser through a pipeline, the top of the condenser is provided with a water inlet, the water inlet is connected with a centrifugal pump through a pipeline, and the centrifugal pump is communicated with the water outlet of the water tank through a pipeline.
Preferably, the feeding distributing plate is uniformly provided with obliquely arranged flow guide holes, and each flow guide hole is respectively communicated with an opening at the top end of each corresponding heat exchange tube.
Preferably, one side of the bottom of the shell is provided with a drain outlet, and the drain outlet is arranged at the top of the grid discharging plate.
Preferably, a liquid outlet arranged at the bottom of the evaporator is connected with a first discharging pump through a pipeline, and a discharging hole of the first discharging pump is communicated with a feeding hole of the first collecting box through a pipeline.
Preferably, a water outlet arranged at the bottom of the condenser is connected with a second discharging pump through a pipeline, and a water outlet of the second discharging pump is communicated with a water inlet of the second collecting box through a pipeline.
Preferably, the steam outlet is internally connected with a clamping block in a clamping manner, a first filtering layer and a second filtering layer are sequentially arranged on one side of the clamping block, and the first filtering layer and the second filtering layer are both clamped in the steam outlet.
Compared with the prior art, the beneficial effects of the utility model are that: this kind of distribution hole slope setting of feeding break plate in falling liquid film evaporation plant, and communicate with the heat exchange tube, the feed liquid is after the buffering of surge chamber, the feed liquid becomes the membraniform and descends along the inboard flow of heat exchange tube, the film forming rate is improved, the heating mantle of setting, conveniently add heating medium, heat the casing, increase the evaporation of moisture, the opening of evaporimeter and condenser bottom is collected the liquid that the reaction produced through ejection of compact pump and collecting box, convenient reuse, prevent extravagant, and the net goes out the flitch and filters the gas-liquid mixture liquid to the evaporimeter, prevent that the solid from causing the jam of pipeline, first filter layer and the second filter layer that set up in the steam outlet filter exhaust steam, it influences the condensation to prevent to contain other impurity in the steam.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the housing of the present invention;
Fig. 3 is a schematic view of the internal structure of the steam outlet of the present invention.
In the figure: 1. a housing; 101. a heating mantle; 102. a heating medium inlet; 103. a heating medium outlet; 104. a buffer chamber; 105. a steam inlet; 2. a feed inlet; 3. a feed distribution plate; 4. a grid discharging plate; 5. a condensed water outlet; 6. an exhaust port; 7. a discharge port; 8. an evaporator; 9. a steam outlet; 901. a clamping block; 902. a first filter layer; 903. a second filter layer; 10. a first discharge pump; 11. a first collection tank; 12. a second discharge pump; 13. a second collection tank; 14. a condenser; 15. a centrifugal pump; 16. a water tank; 17. a sewage draining outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-3, the present invention provides a technical solution: a falling film evaporation device for nylon production comprises a shell 1, wherein a heating cover 101 is sleeved outside the shell 1, the top end of the heating cover 101 is connected with a heating medium inlet 102, the bottom of the heating cover 101 is connected with a heating medium outlet 103, the top of the shell 1 is provided with a feed inlet 2, a buffer chamber 104 is arranged in the shell 1, the bottom of the buffer chamber 104 is provided with a feed distribution plate 3, the bottom of the feed distribution plate 3 is uniformly provided with a plurality of heat exchange tubes, the shell 1 is provided with a steam inlet 105 on the side wall of the top of the heat exchange tube, the bottom of the shell 1 is provided with a grid discharge plate 4, one side of the bottom of the shell 1 is provided with a condensate outlet 5, one side of the top of the shell 1 is provided with an exhaust port 6, the bottom of the other side of the shell 1 is provided with a discharge port 7, the bottom of the evaporator 8 is provided with a liquid outlet, the pipeline connected in the steam outlet 9 and the pipeline connected in the exhaust port 6 are communicated with the opening of the three-way valve, and another opening of the three-way valve is connected with an injection pump through a pipeline, the injection pump is communicated with the air inlet of the condenser 14 through a pipeline, the top of the condenser 14 is provided with a water inlet, the water inlet is connected with a centrifugal pump 15 through a pipeline, and the centrifugal pump 15 is communicated with the water outlet of the water tank 16 through a pipeline. The distribution holes of the feeding distribution plate in the falling film evaporation device are obliquely arranged and communicated with the heat exchange tube, and after the feed liquid is buffered by the buffer chamber, the feed liquid flows in a film shape and descends along the inner side of the heat exchange tube, so that the film forming rate is improved.
Evenly be provided with the water conservancy diversion hole that the slope set up in the feeding break plate 3, and every water conservancy diversion hole communicates with the opening on every heat exchange tube top that corresponds respectively, 1 bottom one side of casing is provided with drain 17, and drain 17 sets up the top at net play flitch 4, the fixed impurity after 4 filters of net play flitch of discharge, the liquid outlet that 8 bottoms of evaporimeter set up has first ejection of compact pump 10 through the pipe connection, the discharge opening of first ejection of compact pump 10 passes through the feed port intercommunication of pipeline and first collecting box 11, collect the liquid after 8 separations of evaporimeter.
The outlet that condenser 14 bottom set up has second discharge pump 12 through the pipe connection, the delivery port of second discharge pump 12 passes through the water inlet intercommunication of pipeline and second collecting box 13, collect the liquid after condenser 14 condensation through second collecting box 13, convenient recycling, the joint has fixture block 901 in the steam outlet 9, fixture block 901 one side has set gradually first filter layer 902 and second filter layer 903, and the equal joint of first filter layer 902 and second filter layer 903 is in steam outlet 9, the steam that flows out in the evaporimeter 8 filters, prevent that impurity in the steam from causing the pipeline to block up.
The working principle is as follows: when the device is used, steam enters the shell 1 from the steam inlet 105 to heat the outer side of the heat exchange tube 3, feed liquid enters the buffer chamber 104 in the shell 1 from the feed inlet 2, the buffered feed liquid enters the heat exchange tube through the flow guide holes on the feed distribution plate 3 to be heated, the feed liquid flows along the inner side of the heat exchange tube in a film shape under the action of gravity and descends, meanwhile, a heating medium is added into the heating cover 101 through the heating medium inlet 102 to heat the shell 1, the moisture of the feed liquid in the heat exchange tube is improved to be heated and vaporized, the condensed water outlet 5 discharges condensed water in the shell 1, the generated steam and liquid fall on the bottom of the shell 1 and are filtered through the grid discharge plate 4, the filtered residue is discharged through the drain outlet 17, the filtered liquid enters the evaporator 8 through the discharge port 7 to be subjected to steam-liquid separation, and the liquid phase flows to the first discharge pump 10 through an opening at the bottom of the evaporator, the steam is collected by the first collecting box 11, the steam is discharged from the steam outlet 9, the steam is filtered by the first filtering layer 902 and the second filtering layer 903, the filtered steam and the steam in the exhaust port 6 enter the condenser 14 through a pipeline under the action of the jet pump, under the action of the centrifugal pump 15, cooling water in the water tank 16 enters the steam condenser 14 through an inlet pipeline to condense the steam, and the condensed liquid flows to the second discharging pump 12 through a pipeline connected with a liquid outlet at the bottom of the condenser 14 and is collected by the second collecting box 13.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A falling film evaporation device for nylon production comprises a shell (1), and is characterized in that: the outer side of the shell (1) is sleeved with a heating cover (101), the top end of the heating cover (101) is connected with a heating medium inlet (102), the bottom of the heating cover (101) is connected with a heating medium outlet (103), the top of the shell (1) is provided with a feed inlet (2), the shell (1) is internally provided with a buffer chamber (104), the bottom of the buffer chamber (104) is provided with a feed distribution plate (3), the bottom of the feed distribution plate (3) is uniformly provided with a plurality of heat exchange tubes, the shell (1) is provided with a steam inlet (105) on the side wall of the top of the heat exchange tubes, the bottom of the shell (1) is provided with a grid discharge plate (4), one side of the bottom of the shell (1) is provided with a condensed water outlet (5), one side of the top of the shell (1) is provided with an exhaust, discharge gate (7) are through the feed port intercommunication of pipeline with evaporimeter (8), evaporimeter (8) top is provided with steam outlet (9), evaporimeter (8) bottom is provided with the liquid outlet, the pipeline of steam outlet (9) internal connection and gas vent (6) internal connection all communicate with the opening of three-way valve, and another opening of three-way valve has the jet pump through the pipe connection, the jet pump passes through the air inlet intercommunication of pipeline and condenser (14), condenser (14) top is provided with the water inlet, and the water inlet has centrifugal pump (15) through the pipe connection, centrifugal pump (15) are through the delivery port intercommunication of pipeline with water tank (16).
2. The nylon production falling film evaporation device of claim 1, wherein: the feeding distributing plate (3) is internally and uniformly provided with obliquely arranged flow guide holes, and each flow guide hole is respectively communicated with an opening at the top end of each corresponding heat exchange tube.
3. The nylon production falling film evaporation device of claim 1, wherein: a sewage draining outlet (17) is arranged on one side of the bottom of the shell (1), and the sewage draining outlet (17) is arranged at the top of the grid discharging plate (4).
4. the nylon production falling film evaporation device of claim 1, wherein: a liquid outlet arranged at the bottom of the evaporator (8) is connected with a first discharging pump (10) through a pipeline, and a discharging hole of the first discharging pump (10) is communicated with a feeding hole of the first collecting box (11) through a pipeline.
5. The nylon production falling film evaporation device of claim 1, wherein: a water outlet arranged at the bottom of the condenser (14) is connected with a second discharging pump (12) through a pipeline, and a water outlet of the second discharging pump (12) is communicated with a water inlet of the second collecting box (13) through a pipeline.
6. The nylon production falling film evaporation device of claim 1, wherein: a clamping block (901) is clamped in the steam outlet (9), a first filtering layer (902) and a second filtering layer (903) are sequentially arranged on one side of the clamping block (901), and the first filtering layer (902) and the second filtering layer (903) are clamped in the steam outlet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920138785.7U CN209752226U (en) | 2019-01-25 | 2019-01-25 | Falling film evaporation device for nylon production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920138785.7U CN209752226U (en) | 2019-01-25 | 2019-01-25 | Falling film evaporation device for nylon production |
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| Publication Number | Publication Date |
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| CN209752226U true CN209752226U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920138785.7U Active CN209752226U (en) | 2019-01-25 | 2019-01-25 | Falling film evaporation device for nylon production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111004387A (en) * | 2019-12-20 | 2020-04-14 | 山东安岩新材料科技有限公司 | Method for preparing modified long carbon chain nylon by connecting multiple reactors in series |
| CN113926213A (en) * | 2021-10-19 | 2022-01-14 | 泰兴协联众达化学有限公司 | Naphthalene evaporation device in phthalic anhydride preparation process |
-
2019
- 2019-01-25 CN CN201920138785.7U patent/CN209752226U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111004387A (en) * | 2019-12-20 | 2020-04-14 | 山东安岩新材料科技有限公司 | Method for preparing modified long carbon chain nylon by connecting multiple reactors in series |
| CN113926213A (en) * | 2021-10-19 | 2022-01-14 | 泰兴协联众达化学有限公司 | Naphthalene evaporation device in phthalic anhydride preparation process |
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