CN210205938U - Plant pitch falling film evaporation ware - Google Patents
Plant pitch falling film evaporation ware Download PDFInfo
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- CN210205938U CN210205938U CN201920844833.4U CN201920844833U CN210205938U CN 210205938 U CN210205938 U CN 210205938U CN 201920844833 U CN201920844833 U CN 201920844833U CN 210205938 U CN210205938 U CN 210205938U
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- heating pipe
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Abstract
The utility model discloses a plant pitch falling film evaporation ware, include the heating pipe group that comprises the heating pipe that many are parallel to each other, the upper end of each heating pipe is located same horizontal plane and is higher than the upper surface of top tube plate, is fixed with a branch liquid cap in the upper end of every heating pipe, divide the liquid cap to include a circular apron that can shield the heating pipe mouth of pipe of its below with connect circular apron and heating pipe upper end, with the many support bars of circular apron level fixation in heating pipe mouth of pipe top, many support bars use the axis of heating pipe to be the center pin and follow circular apron edge and heating pipe and go up the reason and be annular array and arrange, and the space between the adjacent support bars constitutes plant pitch distribution channel. The plant asphalt falling-film evaporator can enable plant asphalt falling from the upper part of the rectifying tower to be uniformly distributed into each heating pipe, so that the bias flow phenomenon is avoided, the plant asphalt falling-film evaporator is not easy to form carbon in the heating pipes after being used for a long time, the evaporation effect is good, and the maintenance period is long.
Description
Technical Field
The utility model relates to a shell and tube falling film evaporator, especially a install in crude fatty acid rectifying column lower part, carry out the special falling film evaporator of circulation heating evaporation to plant pitch.
Background
And a plant asphalt evaporator is required to be arranged at the lower part of the crude fatty acid rectifying tower, and plant asphalt is heated, so that the residual fatty acid in the plant asphalt is evaporated to the top of the tower. The plant asphalt evaporator in the prior art mostly adopts a common tubular heater, plant asphalt circularly falling from the upper part of a rectifying tower enters a heating pipe of the tubular heater, is heated by high-temperature steam outside the heating pipe, fatty acid remained in the plant asphalt is evaporated after being heated, and floats to the top of the tower, so that the aims of reducing the content of the fatty acid in the plant asphalt and improving the yield of the fatty acid are fulfilled. A be used for plant pitch heating evaporation's shell and tube heater among the prior art does not have the liquid separating cap structure on, the plant pitch that falls down from rectifying column upper portion pitch distributing plate directly falls into in the heating tube or falls on the last tube sheet, causes the plant pitch flow distribution inequality in each heating tube easily, is full of plant pitch in some heating tubes, and does not have or only has a small amount of plant pitch in some heating tubes, lead to in the heating tube carbon deposition, the jam, reduce evaporation efficiency, need regularly shut down the clearance, influence normal production.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is: aiming at the defects in the prior art, the plant asphalt falling-film evaporator is provided, plant asphalt falling from the upper part of the rectifying tower can be uniformly distributed into each heating pipe, the bias flow phenomenon is avoided, the plant asphalt falling-film evaporator is not easy to carbonize in the heating pipe after being used for a long time, the evaporation effect is good, and the maintenance period is long.
The technical scheme for solving the technical problem is as follows: a plant asphalt falling film evaporator comprises a heating pipe group consisting of a plurality of mutually parallel heating pipes, an upper tube plate and a lower tube plate are respectively welded at two ends of the heating tube group in a sealing way, a heating steam flow passage is formed by a gap between the heating tubes between the upper tube plate and the lower tube plate, a plant asphalt evaporation flow passage is arranged in each heating tube, the upper end of each heating tube is positioned on the same horizontal plane and is higher than the upper surface of the upper tube plate, a liquid separating cap is fixed at the upper end of each heating pipe, the liquid separating cap comprises a circular cover plate which can shield the pipe orifice of the heating pipe below the liquid separating cap, and connect circular apron and heating pipe upper end, fix the many support bars of circular apron level in heating pipe mouth of pipe top, many support bars use the axis of heating pipe to be the center pin and are arranged along the reason on circular apron edge and the heating pipe in annular array, and the space between the adjacent support bar constitutes plant pitch distribution channel.
As the improvement of the utility model: the upper end of the heating pipe is 3-7 mm higher than the upper surface of the upper pipe plate.
As a further improvement of the utility model: the diameter of the circular cover plate is 2-6 mm larger than the outer diameter of the heating pipe.
As the best proposal of the utility model: the distance from the bottom surface of the circular cover plate to the upper end of the heating pipe is 100-150 mm.
Has the advantages that: the plant asphalt falling film evaporator of the utility model adopts the structure that the plant asphalt falling film evaporator comprises a heating pipe group consisting of a plurality of heating pipes which are parallel to each other, an upper pipe plate and a lower pipe plate are respectively welded at the two ends of the heating pipe group in a sealing way, a heating steam flow passage is formed by the space between the heating pipes between the upper pipe plate and the lower pipe plate, the heating pipes are internally provided with plant asphalt evaporation flow passages, the upper ends of the heating pipes are positioned at the same horizontal plane and are higher than the upper surface of the upper pipe plate, the upper end of each heating pipe is fixed with a liquid separating cap which comprises a circular cover plate capable of shielding the pipe orifice of the heating pipe below the liquid separating cap, and a plurality of support bars which are connected with the upper ends of the circular cover plate and the heating pipes and horizontally fix the circular cover plate above the pipe orifice of the heating pipes, the, the technical scheme is that gaps between adjacent support bars form plant asphalt distribution channels, and a liquid separating cap is arranged above a heating pipe, so that plant asphalt falling from an asphalt distribution plate is prevented from directly falling into the heating pipe, the plant asphalt flows down along the edge of a circular cover plate and is gathered in a liquid storage tank formed by an upper pipe plate, the outer wall of the heating pipe and the inner wall of a rectifying tower, and then overflows into each heating pipe, so that the plant asphalt is uniformly distributed to each heating pipe, therefore, the bias flow phenomenon of the plant asphalt can be effectively prevented, the carbon formation and blockage caused by dry burning of the heating pipe are avoided, the plant asphalt falling-film evaporator is not easy to form carbon formation in the heating pipe after long-term use, the evaporation effect is good, and the maintenance. Because the distance between the upper end of the heating pipe and the upper surface of the upper pipe plate is reasonably limited, the liquid level of the plant asphalt gathered on the upper pipe plate is always kept stable, the fluctuation of the liquid level is reduced, the stock of the plant asphalt on the upper pipe plate is reduced to the maximum extent, all the plant asphalt can be fully heated and evaporated, and the yield of the fatty acid is improved. Because the diameter difference between the circular cover plate and the heating pipes is reasonably limited, more heating pipes can be arranged on the premise of ensuring that the plant asphalt can not directly fall into the heating pipes, the effective evaporation area of the plant asphalt is ensured, and the influence of the liquid separating cap structure on the evaporator is reduced. Because the distance from the circular cover plate to the upper end of the heating pipe is reasonably limited, on the premise of ensuring that the plant asphalt uniformly overflows into the heating pipe, enough channels are reserved for the floating of the fatty acid steam, the floating of the fatty acid steam is not influenced, the impact of the plant asphalt on the liquid level at the moment of falling into the liquid storage tank can be reduced, and the amplitude height of the plant asphalt liquid level wave is reduced.
Drawings
The plant asphalt falling film evaporator of the invention is further described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view of an upper tube plate part in the plant asphalt falling film evaporator of the present invention.
Detailed Description
The utility model discloses a plant pitch falling film evaporation ware, include the heating pipe group that comprises the heating pipe that is parallel to each other by many, seal welding has last tube sheet and low tube sheet respectively at the both ends of heating pipe group, goes up tube sheet and low tube sheet and follows edge and rectifying column tower body inner wall 4 seal welding or sealing connection respectively, is equipped with heating steam inlet and comdenstion water export on the tower body wall between last tube sheet and low tube sheet to space formation heating steam runner between the heating pipe between last tube sheet and low tube sheet, be plant pitch evaporation runner in the heating pipe. As shown in fig. 1, the upper end of each heating tube 1 is located at the same level and 3-7 mm higher than the upper surface of the upper tube sheet 2, and the distance H from the upper end of the heating tube to the upper surface of the upper tube sheet is preferably 5 mm; a liquid separating cap 3 is fixed at the upper end of each heating pipe, the liquid separating cap comprises a circular cover plate 32 which can shield the pipe orifice of the heating pipe below the liquid separating cap, and a plurality of support bars 31 which connect the circular cover plate and the upper end of the heating pipe and horizontally fix the circular cover plate above the pipe orifice of the heating pipe, and the diameter of the circular cover plate is 2-6 mm, preferably 4 mm larger than the outer diameter of the heating pipe; the distance from the bottom surface of the circular cover plate to the upper end of the heating pipe is 100-150 mm, preferably 130 mm; the support bars are arranged in an annular array along the edge of the circular cover plate and the upper edge of the heating pipe by taking the axis of the heating pipe as a central shaft, and gaps between the adjacent support bars form plant asphalt distribution channels.
Because the plant pitch falling film evaporator of the utility model is mainly improved relative to the prior art in that the structure of the liquid separating cap is added at the upper tube plate, and other parts all belong to the prior art, other parts in the prior art are not described in detail in the specification and the drawings of the specification.
The utility model discloses a plant pitch falling film evaporation ware during operation, the heating steam enters into the heating steam runner between upper tube plate and the lower tube plate by the heating steam entry on the tower body wall, heats the heating pipe, and the comdenstion water that forms after the heating steam heat transfer flows by the comdenstion water export of tower wall. The circulating plant asphalt falls to the upper surface of the circular cover plate from an asphalt distribution plate above the plant asphalt falling film evaporator, then falls to a liquid storage tank formed by an upper tube plate, the outer wall of the heating tube and the inner wall of the rectifying tower from the upper surface of the circular cover plate, a small part of plant asphalt can also directly fall into the liquid storage tank through gaps among the circular cover plates, the plant asphalt is gathered in the liquid storage tank, when the liquid level is higher than the upper end of the heating tube, the plant asphalt can simultaneously overflow into the heating tube from all directions through gaps among the supporting bars, a uniform asphalt film is formed in the heating tube, and the upper ends of all the heating tubes are positioned on the same horizontal plane, so the plant asphalt in the liquid storage tank can be uniformly distributed into each heating tube, and steam formed after fatty acid in the plant asphalt is heated flows upwards in a reverse direction through the heating tubes and overflows outwards through the, Rises to the top of the tower body and is captured by a condenser at the top of the tower body, thus completing the circulating evaporation of the plant asphalt.
Claims (4)
1. The utility model provides a plant pitch falling film evaporation ware, includes the heating pipe group that constitutes by the heating pipe of many parallels each other, has seal-welded respectively at the both ends of heating pipe group upper tube plate and lower tube plate, and the space constitutes the heating steam runner between the heating pipe between upper tube plate and the lower tube plate, is plant pitch evaporation runner in the heating pipe, characterized by: the upper end of each heating pipe is located same horizontal plane and is higher than the upper surface of top tube plate, is fixed with a branch liquid cap in the upper end of every heating pipe, divide the liquid cap to include one can be with the circular apron that the heating pipe mouth of pipe of its below shields, and connect circular apron and heating pipe upper end, fix the many support bars in heating pipe mouth of pipe top with circular apron level, many support bars use the axis of heating pipe to be the center pin and follow circular apron edge and heating pipe and go up the edge and be annular array and arrange, and the space between the adjacent support bars constitutes plant pitch distribution channel.
2. The plant asphalt falling film evaporator as claimed in claim 1, wherein: the upper end of the heating pipe is 3-7 mm higher than the upper surface of the upper pipe plate.
3. The plant asphalt falling film evaporator according to claim 2, wherein: the diameter of the circular cover plate is 2-6 mm larger than the outer diameter of the heating pipe.
4. The plant asphalt falling film evaporator as claimed in claim 3, wherein: the distance from the bottom surface of the circular cover plate to the upper end of the heating pipe is 100-150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920844833.4U CN210205938U (en) | 2019-06-06 | 2019-06-06 | Plant pitch falling film evaporation ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920844833.4U CN210205938U (en) | 2019-06-06 | 2019-06-06 | Plant pitch falling film evaporation ware |
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| Publication Number | Publication Date |
|---|---|
| CN210205938U true CN210205938U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920844833.4U Active CN210205938U (en) | 2019-06-06 | 2019-06-06 | Plant pitch falling film evaporation ware |
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| CN (1) | CN210205938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116395774A (en) * | 2023-06-06 | 2023-07-07 | 河北彩客新材料科技股份有限公司 | DATA synthesis production wastewater treatment device and application method thereof |
-
2019
- 2019-06-06 CN CN201920844833.4U patent/CN210205938U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116395774A (en) * | 2023-06-06 | 2023-07-07 | 河北彩客新材料科技股份有限公司 | DATA synthesis production wastewater treatment device and application method thereof |
| CN116395774B (en) * | 2023-06-06 | 2023-08-11 | 河北彩客新材料科技股份有限公司 | DATA synthesis production wastewater treatment device and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Falling film evaporator for vegetable asphalt Effective date of registration: 20220512 Granted publication date: 20200331 Pledgee: Tieling Branch of Shengjing Bank Co.,Ltd. Pledgor: TIELING JINDUO SCIENCE AND TECHNOLOGY CO.,LTD. Registration number: Y2022210000041 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230213 Granted publication date: 20200331 Pledgee: Tieling Branch of Shengjing Bank Co.,Ltd. Pledgor: TIELING JINDUO SCIENCE AND TECHNOLOGY CO.,LTD. Registration number: Y2022210000041 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A plant asphalt falling film evaporator Effective date of registration: 20230216 Granted publication date: 20200331 Pledgee: Tieling Branch of Shengjing Bank Co.,Ltd. Pledgor: TIELING JINDUO SCIENCE AND TECHNOLOGY CO.,LTD. Registration number: Y2023210000023 |