A distributor for thin film evaporator

Abstract

The utility model discloses a distributor for a thin film evaporator, comprising: a distribution plate, a plurality of holes are arranged in the plate, and a circular baffle is arranged at the edge of the distribution plate; a distribution tube, the bottom of which is closed, an opening is arranged at the top, and the top of the distribution tube is fixedly connected to the hole, and a plurality of discharge holes are arranged at the tube wall at the bottom of the distribution tube; a stirring component, comprising a rotating shaft, a connecting piece and a stirring blade, one end of the rotating shaft is connected to a driving motor, and the other end is connected to the connecting piece, and stirring blades are arranged around the connecting piece, and the stirring blades are 45 degrees to the horizontal plane, and a plurality of mounting seats are arranged on the driving motor, and a support rod is connected to the mounting seat, and the other end of the support rod is connected to the circular baffle. The utility model has a simple structure, and the setting of the stirring component can make the material evenly distributed on the distribution plate, reduce material loss, and the discharge holes on the distribution tube make the material evenly enter the heat exchange tubes for evaporation, so that the evaporation effect is better.

Description

Technical Field

[0001] The utility model belongs to the field of thin film evaporation equipment, in particular to a distributor for a thin film evaporator. Background Art

[0002] Falling film evaporator is a kind of thin film evaporator, which can make the material liquid flow in a film-like manner along the heating tube wall to transfer heat and evaporate. It has the advantages of high heat transfer efficiency, fast evaporation speed, short material residence time, etc., so it is particularly suitable for the evaporation of heat-sensitive substances.

[0003] The working principle of the existing thin film evaporator is as follows (refer to Figure 3 ): Material is added into the heat exchange tube 14 through the feeding pipe, and the material is sprayed vertically onto the plane of the tube plate 13 in the evaporator 15. The tube plate 13 is used to spread the material, and then the material enters the heat exchange tube 14 for evaporation. The heat source at the outer wall of the heat exchange tube 14 is used to heat the material, and the generated water vapor flows up and separates from the material.

[0004] However, when the existing tube tray 13 is in use, the material in the feeding pipe is added to the evaporator 15 under a certain pushing pressure. Under the action of this thrust, the material is unevenly distributed on the tube tray 13. Therefore, after the uneven liquid enters the heat exchange tubes 14, the tubes with less liquid will cause excessive evaporation, produce crystals, block the tubes, and affect the evaporation quality. Utility Model Content

[0005] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages to be described below.

[0006] In order to achieve these purposes and other advantages according to the utility model, a distributor for a thin film evaporator is provided, comprising:

[0007] A material distribution plate, wherein a plurality of holes are arranged in the plate, and a circular baffle is arranged at the edge of the material distribution plate;

[0008] The distribution pipe has a closed bottom and an opening that matches the size of the hole at the top. The top of the distribution pipe is fixedly connected to the hole, and a plurality of discharge holes are provided on the wall of the bottom of the distribution pipe.

[0009] The stirring assembly includes a rotating shaft, a connecting piece and a stirring blade. One end of the rotating shaft is connected to a driving motor, and the other end is connected to the connecting piece. The connecting piece is arranged at the center of a distribution disk. Stirring blades are arranged around the connecting piece. The stirring blades are 45 degrees to the horizontal plane. A plurality of mounting seats are provided on the driving motor. A support rod is connected to the mounting seat. The other end of the support rod is connected to a circular baffle.

[0010] Preferably, there are 4 discharge holes in total, which are evenly distributed on the bottom wall of the distribution pipe.

[0011] Preferably, the stirring blade is a rectangular parallelepiped, and the stirring blade and the connecting piece are tightly fitted with the distribution plate.

[0012] Preferably, the distribution pipe and the distribution tray are connected by welding.

[0013] Preferably, the driving motor is connected to the rotating shaft via a sleeve.

[0014] The utility model at least has the following beneficial effects:

[0015] 1. The utility model sets a stirring component so that after the material enters the distribution plate, it can be evenly distributed in the plate through stirring and evenly flows into the distribution pipe. After stopping the addition of material, the stirring component can scrape the remaining material on the distribution plate into the distribution pipe to avoid material waste.

[0016] 2. The utility model evenly arranges a plurality of discharge holes on the bottom wall of the distribution pipe, so that the material in the distribution pipe can flow evenly to the four walls of the heat exchange tube array, making the evaporation more complete.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is the structural diagram of the material distribution pipe of the utility model;

[0020] Figure 3 This is the structural diagram of the tube tray of the utility model;

[0021] Figure 4 This is a cross-sectional view of the material distribution tube and heat exchange tube array of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0023] It should be understood that terms such as “having”, “including” and “comprising” used herein do not specify the existence or addition of one or more other elements or combinations thereof.

[0024] It should be noted that in the description of the present invention, the orientation or position relationship indicated by the term is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0026] In addition, in the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Figure 1 to Figure 4 The utility model shows a distributor for a thin film evaporator, comprising:

[0028] A material distribution plate 1, wherein a plurality of holes 3 are arranged in the plate 1, and a circular baffle 2 is arranged at the edge of the material distribution plate 1;

[0029] The distribution pipe 4 has a closed bottom and an opening on the top that matches the size of the hole 3. The top of the distribution pipe 4 is fixedly connected to the hole 3, and a plurality of discharge holes 5 are provided on the bottom wall of the distribution pipe 4.

[0030] The stirring assembly includes a rotating shaft 6, a connecting member 7 and a stirring blade 8. One end of the rotating shaft 6 is connected to a driving motor 9, and the other end is connected to the connecting member 7. The connecting member 7 is arranged at the center of the cloth plate 1. The connecting member 7 is surrounded by stirring blades 8. The stirring blades 8 are 45 degrees to the horizontal plane. A plurality of mounting seats 10 are provided on the driving motor 9. A support rod 11 is connected to the mounting seat 10. The other end of the support rod 11 is connected to the annular baffle 2.

[0031] Working principle: First, the distribution plate 1 is set above the tube plate 13, and the distribution tube 4 is inserted into the heat exchange tube 14, and then the material is put into the distribution plate 1, the drive motor 9 is turned on, the shaft 6 starts to rotate, and at the same time, the stirring blade 8 starts to rotate. The stirring blade 8 stirs the material to make the material evenly distributed on the distribution plate 1. At the same time, the material enters the distribution tube 4 through the hole 3 on the distribution plate 1 and flows downward. Since the bottom of the distribution tube 4 is closed, the material can only enter the wall of the heat exchange tube 14 from the discharge holes 5 around the wall of the distribution tube 4 for evaporation. After the material stops being added, the stirring blade 8 at a 45-degree angle can scrape the remaining material on the distribution plate 1 into the distribution tube 4 to complete the evaporation of the remaining material. During this process, the stirring blades 8 evenly distribute the material, thereby improving the utilization efficiency of the distribution pipe 4. At the same time, the setting of the discharge holes 5 on the distribution pipe 4 enables the material to evenly flow from the discharge holes 5 to the tube wall of the heat exchange tube 14, so that the material can be fully evaporated in the heat exchange tube 14, thereby achieving a better evaporation effect, reducing material loss and avoiding waste. The setting of the support rod 11 can better fix the stirring component and make the stirring more stable.

[0032] In the above technical solution, there are 4 discharge holes 5, which are evenly distributed on the bottom wall of the distribution pipe 4. In this way, after entering the distribution pipe 4, the material is evenly distributed along the 4 discharge holes 5 in the heat exchange tubes 14 for full evaporation, thereby improving the evaporation efficiency.

[0033] In the above technical solution, the stirring blade 8 is a rectangular parallelepiped, and the stirring blade 8 and the connecting piece 7 are tightly fitted with the material distribution plate 1. In this way, the stirring blade 8 is tightly fitted with the material distribution plate 1, and after stopping the material addition, the stirring blade 8 can better scrape the remaining material on the material distribution plate 1 into the material distribution pipe 4, avoiding material waste.

[0034] In the above technical solution, the connection method of the material distribution pipe 4 and the material distribution plate 1 is welding. In this way, the connection can be made more firm and not easily affected by external factors.

[0035] In the above technical solution, the driving motor 9 is connected to the rotating shaft 6 through the sleeve 12. In this way, the setting of the sleeve 12 enables the driving motor 9 to drive the rotating shaft 6 more stably, so that the stirring blade 8 can stir the material stably.

[0036] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A distributor for a thin film evaporator, characterized in that: include: A material distribution plate, wherein a plurality of holes are arranged in the plate, and a circular baffle is arranged at the edge of the material distribution plate; The distribution pipe has a closed bottom and an opening that matches the size of the hole at the top. The top of the distribution pipe is fixedly connected to the hole, and a plurality of discharge holes are provided on the wall of the bottom of the distribution pipe. The stirring assembly includes a rotating shaft, a connecting piece and a stirring blade. One end of the rotating shaft is connected to a driving motor, and the other end is connected to the connecting piece. The connecting piece is arranged at the center of a distribution disk. Stirring blades are arranged around the connecting piece. The stirring blades are 45 degrees to the horizontal plane. A plurality of mounting seats are provided on the driving motor. A support rod is connected to the mounting seat. The other end of the support rod is connected to a circular baffle.

2. The distributor for a thin film evaporator according to claim 1, characterized in that: There are 4 discharge holes in total, which are evenly distributed on the bottom wall of the distribution pipe.

3. The distributor for thin film evaporator according to claim 1, characterized in that: The stirring blade is a rectangular parallelepiped, and the stirring blade and the connecting piece are tightly fitted with the material distribution plate.

4. The distributor for a thin film evaporator according to claim 1, characterized in that: The distribution pipe and the distribution plate are connected by welding.

5. The distributor for thin film evaporator according to claim 1, characterized in that: The driving motor is connected to the rotating shaft via a sleeve.

Images