CN210543401U - Water curtain film evaporator - Google Patents
Water curtain film evaporator Download PDFInfo
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- CN210543401U CN210543401U CN201920631025.XU CN201920631025U CN210543401U CN 210543401 U CN210543401 U CN 210543401U CN 201920631025 U CN201920631025 U CN 201920631025U CN 210543401 U CN210543401 U CN 210543401U
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Abstract
The utility model discloses a water curtain film evaporator, include: the shell is internally provided with a chamber for providing a solution concentration environment; the plate body is placed in the shell, a steam channel is arranged in the plate body, and an inlet and an outlet of the steam channel extend out of the plate body; one end of the liquid distribution pipe is positioned in the shell, the end part of the liquid distribution pipe is sealed, a row of spray holes are uniformly distributed on the section of the liquid distribution pipe, the spray holes are arranged along the axial direction of the liquid distribution pipe, and the opening direction of the spray holes faces to one end of the film forming surface of the plate body; the other end of the liquid distribution pipe extends out of the shell; the liquid collecting groove is positioned at the end part of the plate body and is arranged opposite to the liquid distribution pipe, and an outlet of the liquid collecting groove extends out of the shell; one end of the negative pressure pumping pipeline is positioned in the shell, and the other end of the negative pressure pumping pipeline extends out of the shell and is connected with the exhaust fan. The solution to be concentrated forms a liquid film in the evaporator, and the water in the solution is quickly evaporated under the heating action of negative pressure and lower temperature, so that the evaporation and concentration speed and efficiency of the solution can be quickly improved, and the concentration quality of the product is ensured.
Description
Technical Field
The utility model relates to a water curtain film evaporator.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
Concentration is a unit operation for removing part of the solvent from the solution, and is a process for partially separating the solute from the solvent, and in the concentration process, moisture is removed from the inside of the liquid phase to the surface of the liquid phase by convection diffusion in the material. Concentration techniques have wide application in industrial production. The traditional and common concentration method is to heat the solution to be concentrated to boiling, so that the solvent in the solution is heated and evaporated. The inventors have found that the concentration method requires a long cooking time at a high temperature, has a low concentration efficiency, and is liable to adversely affect the properties of the product when heat-treated for a long time.
SUMMERY OF THE UTILITY MODEL
To solve the technical problems in the prior art, the present invention provides a water curtain film evaporator. The solution to be evaporated forms a liquid film in the evaporator, and under the action of negative pressure and heating at a lower temperature, the water in the solution is quickly evaporated, so that the evaporation and concentration speed and efficiency of the solution can be quickly improved, and the concentration quality of the product is ensured.
In order to solve the above problems, the technical scheme of the utility model is that:
a water curtain thin film evaporator comprising:
the shell is internally provided with a chamber for providing a solution concentration environment;
the plate body is placed in the shell, a steam channel is arranged in the plate body, and an inlet and an outlet of the steam channel extend out of the plate body;
one end of the liquid distribution pipe is positioned in the shell, the end part of the liquid distribution pipe is sealed, a row of spray holes are uniformly distributed on the section of the liquid distribution pipe, the spray holes are arranged along the axial direction of the liquid distribution pipe, and the opening direction of the spray holes faces to one end of the film forming surface of the plate body; the other end of the liquid distribution pipe extends out of the shell;
the liquid collecting groove is positioned at the end part of the plate body and is arranged opposite to the liquid distribution pipe, and an outlet of the liquid collecting groove extends out of the shell;
one end of the negative pressure pumping pipeline is positioned in the shell, and the other end of the negative pressure pumping pipeline extends out of the shell and is connected with the exhaust fan.
The utility model discloses beneficial effect does:
the spray holes are evenly distributed on the liquid distribution pipe, the end part of the liquid distribution pipe is sealed, and the opening direction of the spray holes faces the film forming surface of the plate body, so that the solution to be concentrated conveyed in the liquid distribution pipe can be sprayed to the film forming surface of the plate body from the spray holes, a liquid film is formed when the solution flows along the surface of the plate body, the evaporation area of the solution is increased, and the evaporation concentration efficiency of the solution is further improved. The liquid collecting groove is positioned at the other end of the plate body and used for collecting and discharging the evaporated and concentrated solution.
The plate body is internally provided with a steam channel, and when steam is introduced into the steam channel, the plate body can be heated, so that a liquid film formed on the surface of the plate body is heated, volatilization of a solvent in the solution is accelerated, and the evaporation efficiency is accelerated.
The negative pressure pipeline is arranged and connected with the exhaust fan, and is used for pumping negative pressure inside the shell, so that the evaporation speed of the solution can be further improved.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural diagram of one or more embodiments of the present invention.
In the figure: 1. the device comprises an exhaust fan, 2, an exhaust opening, 3, a steam outlet valve, 4, a plate body, 5, a steam inlet valve, 6, a liquid collecting tank, 7, a spray hole, 8, a dilute liquid inlet valve, 9, an exhaust gas discharge pipeline, 10, a shell, 11 and a concentrated liquid outlet valve.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
A water curtain thin film evaporator comprising:
the shell is internally provided with a chamber for providing a solution concentration environment;
the plate body is placed in the shell, a steam channel is arranged in the plate body, and an inlet and an outlet of the steam channel extend out of the plate body;
one end of the liquid distribution pipe is positioned in the shell, the end part of the liquid distribution pipe is sealed, a row of spray holes are uniformly distributed on the section of the liquid distribution pipe, the spray holes are arranged along the axial direction of the liquid distribution pipe, and the opening direction of the spray holes faces to one end of the film forming surface of the plate body; the other end of the liquid distribution pipe extends out of the shell;
the liquid collecting groove is positioned at the end part of the plate body and is arranged opposite to the liquid distribution pipe, and an outlet of the liquid collecting groove extends out of the shell;
one end of the negative pressure pumping pipeline is positioned in the shell, and the other end of the negative pressure pumping pipeline extends out of the shell and is connected with the exhaust fan.
The spray holes are evenly distributed on the liquid distribution pipe, the end part of the liquid distribution pipe is sealed, and the opening direction of the spray holes faces the film forming surface of the plate body, so that the solution to be concentrated conveyed in the liquid distribution pipe can be sprayed to the film forming surface of the plate body from the spray holes, a liquid film is formed when the solution flows along the surface of the plate body, the evaporation area of the solution is increased, and the evaporation concentration efficiency of the solution is further improved. The liquid collecting groove is positioned at the other end of the plate body and used for collecting and discharging the evaporated and concentrated solution.
The plate body is internally provided with a steam channel, and when steam is introduced into the steam channel, the plate body can be heated, so that a liquid film formed on the surface of the plate body is heated, volatilization of a solvent in the solution is accelerated, and the evaporation efficiency is accelerated.
The negative pressure pipeline is arranged and connected with the exhaust fan, and is used for pumping negative pressure inside the shell, so that the evaporation speed of the solution can be further improved.
In some embodiments, the plate body is vertically arranged inside the shell, the liquid distribution pipe is located at the upper end of the plate body, and the liquid collecting tank is located at the lower end of the plate body. When vertical setting, can guarantee to follow the solution that sprays in the liquid distribution pipe and form the liquid film from the plate body downstream, and then improve the evaporation efficiency of solution.
In some embodiments, the plate body is arranged inclined with respect to the vertical inside the housing by an angle of 45 ° to 80 °, further 60 ° to 70 °. Such as 45 °, 50 °, 55 °, 60 °, 65 °, and 70 °.
The plate body sets up for vertical direction slope, can make the velocity of flow of solution on the plate body slow down, increases the dwell time of solution on the plate body, and then increases the concentration multiple of solution, improves the concentration effect of solution.
In some embodiments, the filming surface of the plate is wavy. The wavy film forming surface can further prolong the retention time of the solution, thereby improving the concentration effect of the solution.
In some embodiments, the number of the plate bodies is not limited, and the plate bodies are arranged in parallel. If the number of the plate bodies can be 1, 2, 3, 4 or more, the plate bodies are arranged in parallel, and the space can be saved.
In some embodiments, the length of liquid distribution pipe located inside the housing spans the entire width of the plate body. The liquid distribution pipe spans the whole width direction of the plate body, so that the spraying range of the solution in the liquid distribution completely covers the width direction of the plate body, and then the film is formed on the whole film forming surface of the plate body, and the utilization rate of the plate body is effectively improved.
In some embodiments, the steam channel includes a main gas distribution pipe, a plurality of branch pipes and a gas collecting pipe, the main gas distribution pipe is disposed along the width direction of the plate body, the branch pipes are disposed along the flow direction parallel to the solution and are uniformly distributed in the width direction of the plate body, one end of each of the plurality of branch pipes is connected with different positions of the main gas distribution pipe, the other end of each of the plurality of branch pipes is connected with the gas collecting pipe, and the main gas distribution pipe is connected with the steam source.
The gas distribution main pipe distributes steam in different branch pipes, so that the branch pipes uniformly distributed in the width direction of the plate body uniformly heat the liquid film, and the liquid film is uniformly evaporated.
Further, the gas distribution main pipe is arranged close to the liquid collecting tank. Is beneficial to improving the evaporation efficiency of the solution.
In some embodiments, the negative pressure pumping pipeline is provided with 1-5 air suction openings, and the air suction openings are distributed along the width direction of the plate body. The vapor evaporated from each area in the shell can be extracted in time, which is favorable for improving the evaporation efficiency of the solution. For example, the number of extraction openings can be 1, 2, 3, 4, 5, etc.
Further, the air suction opening is arranged at the top of the shell. Because the evaporated steam has low density and floats upwards, the steam is easier to be extracted when negative pressure is extracted in the area.
In some embodiments, the bottom of the sump is inclined and the liquid outlet is located at the lowest position of the sump. The concentrated solution in the liquid collecting tank can be conveniently and completely discharged in time.
Examples
As shown in fig. 1, a water curtain thin film evaporator includes:
a housing 10, which is internally provided with a chamber for providing a solution concentration environment; the plate body 4 is vertically placed in the shell 10, a steam channel is arranged in the plate body, an inlet and an outlet of the steam channel extend out of the plate body, a steam inlet valve 5 is arranged at the inlet, and a steam outlet valve 3 is arranged at the outlet, so that the flow direction of steam in the plate body 4 is integrally from bottom to top;
one end of the liquid distribution pipe is positioned in the shell, the end part of the liquid distribution pipe is sealed, a row of spray holes 7 are uniformly distributed on the section of the liquid distribution pipe, the spray holes 7 are arranged along the axial direction of the liquid distribution pipe, and the opening direction of the spray holes 7 faces to one end of the film forming surface of the plate body; the other end of the liquid distribution pipe extends out of the shell 10, and a dilute liquid inlet valve 8 is arranged on the liquid distribution pipe.
The liquid collecting groove 6 is located at the end of the plate body 4 and is opposite to the liquid distribution pipe, an outlet of the liquid collecting groove 6 extends out of the shell 10, a liquid discharge pipeline is arranged on one side of the liquid collecting groove 6, and a concentrated liquid outlet valve 11 is arranged on the liquid discharge pipeline. Be provided with 5 suction openings on taking out the negative pressure pipeline, 5 suction openings equipartition are in the width direction of plate body 4, take out negative pressure pipeline's one end and lie in inside casing 10, and the other end extends casing 10 to be connected with air exhauster 1, exhaust emission pipeline 9 is connected to the exit end of air exhauster 1, and the exhaust is led and is sent to the settlement position and discharge.
The steam inlet valve 5 is opened to allow dry steam to enter the steam pipe in the plate. And starting the exhaust fan 1 to lead out the air in the shell from the self-suction type negative pressure air suction opening 2. And opening a dilute solution inlet valve 8 to enable the low-concentration pentose solution to form a water film on the surface of the plate body through the water film nozzle. The steam heat in the steam pipeline in the plate body enables the moisture in the water film to be quickly evaporated and discharged out of the device through the waste gas discharge pipeline 9. The remaining liquid flows into the concentrate catch tank, and is discharged after being opened by the concentrate outlet valve 11.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A water curtain thin film evaporator characterized by: the method comprises the following steps:
the shell is internally provided with a chamber for providing a solution concentration environment;
the plate body is placed in the shell, a steam channel is arranged in the plate body, and an inlet and an outlet of the steam channel extend out of the plate body;
one end of the liquid distribution pipe is positioned in the shell, the end part of the liquid distribution pipe is sealed, a row of spray holes are uniformly distributed on the section of the liquid distribution pipe, the spray holes are arranged along the axial direction of the liquid distribution pipe, and the opening direction of the spray holes faces to one end of the film forming surface of the plate body; the other end of the liquid distribution pipe extends out of the shell;
the liquid collecting groove is positioned at the end part of the plate body and is arranged opposite to the liquid distribution pipe, and an outlet of the liquid collecting groove extends out of the shell;
one end of the negative pressure pumping pipeline is positioned in the shell, and the other end of the negative pressure pumping pipeline extends out of the shell and is connected with the exhaust fan.
2. The water curtain thin film evaporator as recited in claim 1 wherein: the plate body is vertically arranged in the shell, the liquid distribution pipe is located at the upper end of the plate body, and the liquid collecting tank is located at the lower end of the plate body.
3. The water curtain thin film evaporator as recited in claim 1 wherein: the plate body is arranged in the shell body in an inclined mode relative to the vertical direction, and the inclined angle is 45-80 degrees.
4. The water curtain thin film evaporator as recited in claim 1 wherein: the film forming surface of the plate body is wavy.
5. The water curtain thin film evaporator as recited in claim 1 wherein: the section of the liquid distribution pipe positioned in the shell body spans the whole width of the plate body.
6. The water curtain thin film evaporator as recited in claim 1 wherein: the steam passage comprises a gas distribution main pipe, a plurality of branch pipes and a gas collecting pipe, the gas distribution main pipe is placed along the width direction of the plate body, the branch pipes are arranged along the flowing direction parallel to the solution and are evenly distributed in the width direction of the plate body, one end of each branch pipe is connected with different positions of the gas distribution main pipe, the other end of each branch pipe is connected with the gas collecting pipe, and the gas distribution main pipe is connected with a steam source.
7. The water curtain thin film evaporator as recited in claim 6 wherein: the gas distribution main pipe is arranged close to the liquid collecting tank.
8. The water curtain thin film evaporator as recited in claim 1 wherein: the negative pressure pumping pipeline is provided with 1-5 air suction ports which are distributed along the width direction of the plate body.
9. The water curtain thin film evaporator as recited in claim 8 wherein: the air suction opening is arranged at the top of the shell.
10. The water curtain thin film evaporator as recited in claim 1 wherein: the bottom of the liquid collecting tank is obliquely arranged, and the liquid outlet is located at the lowest position of the liquid collecting tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920631025.XU CN210543401U (en) | 2019-05-05 | 2019-05-05 | Water curtain film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920631025.XU CN210543401U (en) | 2019-05-05 | 2019-05-05 | Water curtain film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210543401U true CN210543401U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920631025.XU Active CN210543401U (en) | 2019-05-05 | 2019-05-05 | Water curtain film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210543401U (en) |
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2019
- 2019-05-05 CN CN201920631025.XU patent/CN210543401U/en active Active
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Effective date of registration: 20220825 Address after: Room 401, 4th Floor, Building A1-4, Hanyu Golden Valley, No. 7000, Jingshi Road, Jinan Area, China (Shandong) Free Trade Pilot Zone, Jinan City, Shandong Province, 250101 Patentee after: Shandong Qoke Environmental Technology Co.,Ltd. Address before: Room 113, Building 21, No. 80, Lane 280, Xiujiang Road, Zhujing Town, Jinshan District, Shanghai, 201500 Patentee before: Shanghai Qiaoke Technology Co.,Ltd. |