CN209790891U - Improved falling film evaporator - Google Patents
Improved falling film evaporator Download PDFInfo
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- CN209790891U CN209790891U CN201920424246.XU CN201920424246U CN209790891U CN 209790891 U CN209790891 U CN 209790891U CN 201920424246 U CN201920424246 U CN 201920424246U CN 209790891 U CN209790891 U CN 209790891U
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Abstract
The utility model provides an improved generation falling film evaporation ware, it can solve the not good problem of defoaming effect of current falling film evaporation ware. The device comprises an upper pipe box, a shell pass cylinder and a lower pipe box, wherein a heat exchange pipe is arranged between an upper pipe plate and the lower pipe plate in a penetrating manner, a material liquid distribution pipe and a baffle plate type defoamer are respectively arranged in the upper pipe box from top to bottom, the material liquid distribution pipe is of a horizontally arranged annular structure, a liquid inlet of the material liquid distribution pipe upwards penetrates through the upper pipe box, and liquid outlet holes are uniformly distributed in the lower part of the material liquid distribution pipe along the circumferential direction of the material liquid distribution pipe; the baffle type defoamer is integrally in a disc shape and is fixedly connected with the side wall of the upper pipe box, the baffle type defoamer is formed by assembling folded plates arranged at equal intervals, the folded corners of the folded plates are provided with barbs, and the openings of the barbs are upward; a liquid inlet hole is also formed in the side wall of the heat exchange tube positioned at the upper part of the upper tube plate along the circumferential direction of the heat exchange tube; the liquid trap is installed to the inside top of lower tube case, and internally mounted has the demister, and the gas outlet that has the export intercommunication with the demister is opened to the lateral part, and open the bottom has the discharge gate.
Description
Technical Field
The utility model relates to an evaporimeter field specifically is an improved generation falling film evaporation ware.
Background
The falling film evaporator is one kind of film evaporator and has the principle that material liquid is fed via the upper pipe box to the heating chamber of the falling film evaporator and is distributed homogeneously to the heat exchange pipes via the liquid distributing and filming device, and the material liquid flows via the action of gravity, vacuum induction and airflow from top to bottom.
To falling film evaporator, can produce the bubble when the feed liquid adds from the heating chamber upper tube box, traditional falling film evaporator has set up the defoaming structure, but the defoaming effect is not good, influences the filming of liquid, and then influences the evaporation effect.
Disclosure of Invention
The technical problem that the defoaming effect is not good to current falling film evaporator, the utility model provides an improved generation falling film evaporator, it can improve falling film evaporator's defoaming effect.
The technical scheme is as follows: an improved falling film evaporator is characterized in that: the heat exchange tube comprises an upper tube box, a shell pass tube body and a lower tube box which are sequentially connected from top to bottom, wherein the upper tube box and the shell pass tube body and the lower tube box are respectively separated by an upper tube plate and a lower tube plate; the side surface of the lower part of the shell pass cylinder body is provided with a heating medium inlet, and the side surface of the upper part of the shell pass cylinder body is provided with a heating medium outlet; a feed liquid distribution pipe and a baffle plate type defoamer are respectively arranged in the upper pipe box from top to bottom, the feed liquid distribution pipe is of a horizontally arranged annular structure, the feed liquid distribution pipe is fixed in the upper pipe box through a hanging bracket, a liquid inlet of the feed liquid distribution pipe upwards penetrates out of the upper pipe box, and liquid outlet holes are uniformly distributed in the lower part of the feed liquid distribution pipe along the circumferential direction of the feed liquid distribution pipe; the baffle type defoamer is integrally disc-shaped and is fixedly connected with the side wall of the upper pipe box, the baffle type defoamer is formed by assembling folded plates arranged at equal intervals, inverted hooks are arranged at the folded corners of the folded plates, and openings of the inverted hooks are upward; a liquid inlet hole is also formed in the side wall of the heat exchange tube positioned at the upper part of the upper tube plate along the circumferential direction of the heat exchange tube; the inside top of lower tube case is installed the liquid trap, and internally mounted has the demister, and the lateral part open have with the gas outlet of demister's export intercommunication, the bottom is opened there is the discharge gate.
it is further characterized in that:
Two circles of liquid holes are formed in the lower portion of the material liquid distribution pipe along the circumferential direction of the material liquid distribution pipe, the liquid holes are located in the same circle and are arranged at equal intervals, the liquid holes located in different circles are in one-to-one symmetry with the longitudinal center line of the pipe body of the material liquid distribution pipe, and the two symmetrical liquid holes have an axis included angle of 90 degrees.
The inner side of the air outlet is connected with a guide pipe with an opening at the bottom through a flange, the opening at the bottom of the guide pipe is also connected with an air inlet pipe, the demister comprises an umbrella-shaped demister and a blade-type demister which are arranged at intervals from top to bottom, the umbrella-shaped demister and the blade-type demister are both arranged in the air inlet pipe and are matched with the size of the air inlet pipe, and the umbrella-shaped demister and the blade-type demister are both fixed on the guide pipe through fixing rods.
The heat exchange tube is characterized by further comprising baffle plates which are horizontally arranged, the baffle plates are arranged in the shell pass cylinder at intervals up and down, two adjacent baffle plates are arranged on two sides of the inner wall of the shell pass cylinder in a staggered mode, and the heat exchange tube penetrates through the baffle plates.
The lower end of the pull rod is fixedly connected to the lower tube plate, the upper end of the pull rod sequentially penetrates through the baffle plates and is fixedly connected to the uppermost baffle plate, and a distance tube is sleeved on the pull rod between every two adjacent baffle plates.
And a clean discharge port is also formed in the side wall of the bottom end of the shell pass cylinder.
the top of the upper tube box and the side of the lower tube box are both provided with a temperature measuring port and a side pressure port.
And the top of the upper tube box is also provided with a sight glass.
The utility model has the advantages that:
The utility model discloses a falling film evaporator has set up feed liquid distribution pipe and baffling board formula defoamer in last pipe case, and feed liquid distribution pipe can carry out evenly distributed to the feed liquid, makes the feed liquid evenly fall to the baffling board defoamer, and the folded plate and the barb of baffling board defoamer can the effectual bubble of eliminating in the feed liquid to can guarantee that the feed liquid can effectively become the membrane after getting into the heat exchange tube, and then improve the evaporation effect.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
Fig. 3 is a sectional view taken along line B-B of fig. 2.
Reference numerals: 1-upper tube box; 2-shell pass cylinder; 3-a lower pipe box; 4-an upper tube plate; 5-lower tube plate; 6-heat exchange tube; 7-heating medium inlet; 8-heating medium outlet; 9-feed liquid distribution pipe; 10-baffle type defoamer; 11-a hanger; 12-a liquid inlet; 13-liquid outlet holes; 14-folding plates; 15-barb; 16-liquid inlet hole; 17-a liquid trap; 18-air outlet; 19-a discharge hole; 20-a flange; 21-a catheter; 22-an air inlet pipe; 23-umbrella-shaped demister; 24-a vane skimmer; 25-a fixation rod; 26-a clean discharge port; 27-temperature measuring port; 28-side pressure ports; 29-view mirror; 30-a baffle plate; 31-a pull rod; 32-distance tube; 33-vent.
Detailed Description
referring to fig. 1 to 3, the improved falling film evaporator of the present invention comprises an upper tube box 1, a shell pass cylinder 2 and a lower tube box 3 which are sequentially connected from top to bottom, wherein the upper tube box 1 and the shell pass cylinder 2, and the shell pass cylinder 2 and the lower tube box 3 are respectively separated by an upper tube plate 4 and a lower tube plate 5, a heat exchange tube 6 is inserted between the upper tube plate 4 and the lower tube plate 5, and two ends of the heat exchange tube 6 are respectively communicated with the upper tube box 1 and the lower tube box 3; the side surface of the lower part of the shell pass cylinder body 2 is provided with a heating medium inlet 7, and the side surface of the upper part is provided with a heating medium outlet 8; a material liquid distribution pipe 9 and a baffle type defoamer 10 are respectively arranged in the upper pipe box 1 from top to bottom, the material liquid distribution pipe 9 is of a horizontally arranged annular structure, the material liquid distribution pipe 9 is fixed in the upper pipe box 1 through a hanging bracket 11, a liquid inlet 12 of the material liquid distribution pipe penetrates out of the upper pipe box 1 upwards, and liquid outlet holes 13 are uniformly distributed in the lower part of the material liquid distribution pipe 9 along the circumferential direction of the material liquid distribution pipe; the whole of the baffle type defoamer 10 is disc-shaped and is fixedly connected with the side wall of the upper pipe box 1, the baffle type defoamer 10 is formed by assembling folded plates 14 which are arranged at equal intervals, the folded corners of the folded plates 14 are provided with inverted hooks 15, and the openings of the inverted hooks 15 are upward; a liquid inlet hole 16 is also formed on the side wall of the heat exchange tube 6 positioned at the upper part of the upper tube plate 4 along the circumferential direction; a liquid collector 17 is arranged above the interior of the lower tube box 5, a demister is arranged in the lower tube box, an air outlet 18 communicated with an outlet of the demister is arranged on the side part of the lower tube box, and a discharge hole 19 is arranged at the bottom of the lower tube box; a clean discharge port 26 is also formed on the side wall of the bottom end of the shell pass cylinder body 2, and a vent 33 is also formed on the side wall of the top end; the top of the upper tube box 1 and the side of the lower tube box 3 are both provided with a temperature measuring port 27 and a side pressure port 28; the top of the upper channel 1 is also provided with a sight glass 29.
Referring to fig. 1 to 3, the lower portion of the liquid distribution pipe 9 is provided with two circles of liquid outlet holes 13 along the circumferential direction, the liquid outlet holes 13 in the same circle are uniformly spaced, the liquid outlet holes 13 in different circles are symmetrical to each other with respect to the longitudinal center line M of the pipe body of the liquid distribution pipe 9, and the axial included angle α between the two symmetrical liquid outlet holes 13 is 90 °. So design, can make more even the falling of feed liquid to baffle formula defoamer.
Referring to fig. 1, the inner side of the air outlet 18 is connected with a conduit 21 with an open bottom through a flange 20, the open bottom of the conduit 21 is further connected with an air inlet pipe 22, the demister comprises an umbrella-shaped demister 23 and a blade-type demister 24 which are arranged at intervals from top to bottom, the umbrella-shaped demister 23 and the blade-type demister 24 are both arranged in the air inlet pipe 22 and are adaptive to the size of the air inlet pipe 22, and the umbrella-shaped demister 23 and the blade-type demister 24 are both fixed on the conduit 21 through a fixing rod 25. By the design, gas-liquid separation can be effectively carried out on the evaporated secondary steam, and the mass transfer efficiency is ensured.
Referring to fig. 1, the falling film evaporator of the present invention further includes a baffle plate 30 horizontally disposed and a pull rod 31 vertically disposed, the baffle plate 30 is disposed in the shell pass cylinder 2 at an interval from top to bottom, and two adjacent baffle plates 30 are disposed at two sides of the inner wall of the shell pass cylinder 2 in a staggered manner, and the heat exchange tube 6 passes through the baffle plates 30; the lower end of the pull rod 31 is fixedly connected to the lower tube plate 5, the upper end of the pull rod passes through the baffle plates 30 in sequence and is fixedly connected to the uppermost baffle plate 30, and a distance tube 32 is sleeved on the pull rod 31 between two adjacent baffle plates 30. The heat transfer time of the medium in the shell pass cylinder can be prolonged by arranging the baffle plates, the evaporation of the feed liquid in the heat exchange tube is promoted, the distance between two adjacent baffle plates can be conveniently determined by arranging the distance pipes, and the distance pipes are more convenient to install by arranging the pull rods.
Claims (8)
1. An improved falling film evaporator is characterized in that: the heat exchange tube comprises an upper tube box, a shell pass tube body and a lower tube box which are sequentially connected from top to bottom, wherein the upper tube box and the shell pass tube body and the lower tube box are respectively separated by an upper tube plate and a lower tube plate; the side surface of the lower part of the shell pass cylinder body is provided with a heating medium inlet, and the side surface of the upper part of the shell pass cylinder body is provided with a heating medium outlet; a feed liquid distribution pipe and a baffle plate type defoamer are respectively arranged in the upper pipe box from top to bottom, the feed liquid distribution pipe is of a horizontally arranged annular structure, the feed liquid distribution pipe is fixed in the upper pipe box through a hanging bracket, a liquid inlet of the feed liquid distribution pipe upwards penetrates out of the upper pipe box, and liquid outlet holes are uniformly distributed in the lower part of the feed liquid distribution pipe along the circumferential direction of the feed liquid distribution pipe; the baffle type defoamer is integrally disc-shaped and is fixedly connected with the side wall of the upper pipe box, the baffle type defoamer is formed by assembling folded plates arranged at equal intervals, inverted hooks are arranged at the folded corners of the folded plates, and openings of the inverted hooks are upward; a liquid inlet hole is also formed in the side wall of the heat exchange tube positioned at the upper part of the upper tube plate along the circumferential direction of the heat exchange tube; the inside top of lower tube case is installed the liquid trap, and internally mounted has the demister, and the lateral part open have with the gas outlet of demister's export intercommunication, the bottom is opened there is the discharge gate.
2. An improved falling film evaporator according to claim 1 in which: two circles of liquid holes are formed in the lower portion of the material liquid distribution pipe along the circumferential direction of the material liquid distribution pipe, the liquid holes are located in the same circle and are arranged at equal intervals, the liquid holes located in different circles are in one-to-one symmetry with the longitudinal center line of the pipe body of the material liquid distribution pipe, and the two symmetrical liquid holes have an axis included angle of 90 degrees.
3. An improved falling film evaporator according to claim 1 in which: the inner side of the air outlet is connected with a guide pipe with an opening at the bottom through a flange, the opening at the bottom of the guide pipe is also connected with an air inlet pipe, the demister comprises an umbrella-shaped demister and a blade-type demister which are arranged at intervals from top to bottom, the umbrella-shaped demister and the blade-type demister are both arranged in the air inlet pipe and are matched with the size of the air inlet pipe, and the umbrella-shaped demister and the blade-type demister are both fixed on the guide pipe through fixing rods.
4. An improved falling film evaporator according to claim 1 in which: the heat exchange tube is characterized by further comprising baffle plates which are horizontally arranged, the baffle plates are arranged in the shell pass cylinder at intervals up and down, two adjacent baffle plates are arranged on two sides of the inner wall of the shell pass cylinder in a staggered mode, and the heat exchange tube penetrates through the baffle plates.
5. An improved falling film evaporator according to claim 4 in which: the lower end of the pull rod is fixedly connected to the lower tube plate, the upper end of the pull rod sequentially penetrates through the baffle plates and is fixedly connected to the uppermost baffle plate, and a distance tube is sleeved on the pull rod between every two adjacent baffle plates.
6. an improved falling film evaporator according to claim 1 in which: and a clean discharge port is also formed in the side wall of the bottom end of the shell pass cylinder.
7. An improved falling film evaporator according to claim 1 in which: the top of the upper tube box and the side of the lower tube box are both provided with a temperature measuring port and a side pressure port.
8. An improved falling film evaporator according to claim 1 in which: and the top of the upper tube box is also provided with a sight glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920424246.XU CN209790891U (en) | 2019-04-01 | 2019-04-01 | Improved falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920424246.XU CN209790891U (en) | 2019-04-01 | 2019-04-01 | Improved falling film evaporator |
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| Publication Number | Publication Date |
|---|---|
| CN209790891U true CN209790891U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920424246.XU Active CN209790891U (en) | 2019-04-01 | 2019-04-01 | Improved falling film evaporator |
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| CN (1) | CN209790891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111406828A (en) * | 2020-03-30 | 2020-07-14 | 山东凯斯达机械制造有限公司 | Device and process for extracting soybean effective components by using mixed solvent |
| CN113101685A (en) * | 2021-04-25 | 2021-07-13 | 上海定泰蒸发器有限公司 | Falling film evaporator |
-
2019
- 2019-04-01 CN CN201920424246.XU patent/CN209790891U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111406828A (en) * | 2020-03-30 | 2020-07-14 | 山东凯斯达机械制造有限公司 | Device and process for extracting soybean effective components by using mixed solvent |
| CN113101685A (en) * | 2021-04-25 | 2021-07-13 | 上海定泰蒸发器有限公司 | Falling film evaporator |
| CN113101685B (en) * | 2021-04-25 | 2022-08-12 | 上海定泰蒸发器有限公司 | Falling film evaporator |
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