Falling film distributor with adjustable distribution rate
By designing a falling film distributor with adjustable liquid distribution rate, the problems of adaptability and clogging of traditional distributors under changing operating conditions are solved, achieving uniform liquid distribution and impurity filtration, thereby improving mass and heat transfer efficiency and equipment lifespan.
Patent Information
- Application Number
- CN202423206947.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Traditional falling film distributors cannot flexibly adjust the liquid distribution rate, resulting in low mass and heat transfer efficiency. They are also prone to clogging due to impurities, which limits their adaptability and service life in complex production environments.
An adjustable falling film distributor was designed. Through components such as a rotating rod, adjusting disk, flow limiting disk, and filter screen, the liquid distribution rate can be flexibly adjusted and impurities can be filtered. The rotating rod driven by a motor drives the adjusting disk to rotate, adjusts the connection between the lower slot and the flow port to regulate the liquid flow rate, and filters impurities through the filter screen and filter residue screen.
This achieves uniform distribution of liquid on the packing surface, improves mass and heat transfer efficiency, extends equipment lifespan, and reduces maintenance costs.
Smart Images
Figure CN223818182U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to chemical equipment technical field especially relates to a distribution rate adjustable falling film distributor. BACKGROUND
[0002] Falling film distributor occupies the key position in the operation of the packed column in many industrial fields, especially in chemical industry, petrochemical industry and other industries. And part of the traditional distributor lacks the rate adjusting function, cannot flexibly cope with different working conditions and feed changes, limits its adaptability in complex production process, in the liquid conveying process, impurities are easy to enter the distributor, causes the blockage and the component abrasion, the announcement number CN214551242U discloses a falling film distributor and falling film evaporator, relates to chemical equipment technical field, the present application discloses a falling film distributor, it includes: the bottom plate that horizontal setting, the baffle that vertical setting on the bottom plate;Bottom plate is equipped with several dispersion holes, and the baffle forms the closed material flow channel;The baffle includes several first baffles and second baffles that are arranged on the center axis of the bottom plate symmetrically;The first baffle is arranged in several and interval, and the symmetrical first baffle has interval in the middle;Second baffle is arranged in several interval and is perpendicular to the groove of the first baffle, and the two ends of the open groove are connected with the two ends of the first baffle, and the length of the second baffle gradually shortens from the center of the bottom plate to both ends. The present application also discloses a falling film evaporator, which comprises a falling film distributor, and further comprises: an outer shell and a connecting piece connected with the outer shell, the falling film distributor is horizontally arranged in the inner part of the outer shell, and the connecting piece is used for fastening the falling film distributor and the outer shell. The device improves the heat exchange efficiency of the evaporator, thereby reducing the overall energy consumption of the system and saving costs. However, the device can adjust the flow rate of the liquid, and it cannot flexibly adjust the liquid distribution rate according to the working condition changes. It is difficult to adapt to the fluctuation of feed flow or the change of process requirements, which easily leads to low mass and heat transfer efficiency. In the face of complex and variable industrial production environment, the adaptability is poor, which limits its efficient application in various process scenarios. Therefore, it needs to be improved. UTILITY MODEL CONTENTS
[0003] The utility model aims at solving the technical problem raised in the above background art.
[0004] The utility model adopts the following technical scheme: a falling film distributor with adjustable distribution rate, comprising an outer shell, a gas pressure port is formed in the surface of the outer shell, an inlet pipe is fixedly installed on the upper surface of the outer shell, a flow pipe is fixedly installed at the bottom end of the inlet pipe, a motor is fixedly installed at the top end of the outer shell, a rotating rod is fixedly installed at the output end of the motor, an adjusting disc is fixedly installed on the surface of the rotating rod, a lower notch is formed in the surface of the adjusting disc, a flow limiting disc is rotatably connected to the surface of the adjusting disc, a flow port is formed in the surface of the flow limiting disc, a flow dividing disc is fixedly installed in the inner part of the outer shell, a flow guiding disc is fixedly installed in the inner part of the outer shell, and a flow converging groove is formed in the surface of the flow guiding disc.
[0005] Preferably, the surface of the rotating rod is rotatably connected with the inner part of the flow distribution disc, the surface of the rotating rod is rotatably connected with the inner part of the flow limiting disc, and the side surface of the flow limiting disc is fixedly connected with the inner part of the shell.
[0006] Preferably, the lower notches are uniformly distributed on the surface of the adjusting disc, and the flow ports are uniformly distributed on the surface of the flow distribution disc.
[0007] Preferably, one end of the lower notch is rotatably connected with the bottom end of the flow limiting disc, one end of the lower notch is rotatably connected with one end of the flow port, and one end of the flow port is rotatably connected with the surface of the adjusting disc.
[0008] Preferably, the inner part of the inlet pipe is slidably connected with the filter screen, the surface of the filter screen is fixedly connected with the handle, the bottom end of the filter screen is threadedly connected with the filter residue screen, the top end of the inlet pipe is rotatably connected with the cover plate, and the side surface of the cover plate is fixedly connected with the sealing strip.
[0009] Preferably, the side surface of the filter residue screen is slidably connected with the inner part of the flow pipe, and the sealing strip is fixedly connected between the cover plate and the top end of the inlet pipe.
[0010] Compared with the prior art, the device has the advantages and positive effects that:
[0011] 1. In the device, the rotating rod drives the adjusting disc to rotate, so that the lower notch and the flow port are rotatably connected, the distribution rate of the distributor can be adjusted, the distribution rate can be flexibly adjusted according to different working conditions, the device is suitable for diversified production requirements, liquid can be uniformly distributed on the surface of the filler, the mass and heat transfer efficiency is improved, the device can be applied to related process operations in multiple fields, and the universality of equipment use is enhanced.
[0012] 2. In the device, the filter screen, the handle, the filter residue screen, the cover plate and the sealing strip are arranged, the connection between the filter screen, the filter residue screen and the inlet pipe protects the internal components of the distributor from damage by impurities, prolongs the service life of the distributor, reduces the frequency of equipment failure caused by impurities, reduces the maintenance and part replacement costs, and thus reduces the overall maintenance cost. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1The utility model provides a whole structure schematic drawing of falling film distributor of distribution rate adjustable.
[0014] Figure 2 The utility model provides a whole structure explosion map of falling film distributor of distribution rate adjustable.
[0015] Figure 3 The utility model provides a whole structure section view of falling film distributor of distribution rate adjustable.
[0016] Figure 4 The utility model provides a regulating disc place schematic drawing of falling film distributor of distribution rate adjustable.
[0017] Figure 5 The utility model provides a filter screen place schematic drawing of falling film distributor of distribution rate adjustable.
[0018] Legend:
[0019] 1, shell, 2, air pressure port, 3, inlet pipe, 4, flow pipe, 5, motor, 6, rotating rod, 7, regulating disc, 8, lower notch, 9, flow limiting disc, 10, flow port, 11, shunt disc, 12, flow guide disc, 13, flow collecting groove, 14, filter screen, 15, handle, 16, filter residue screen, 17, cover plate, 18, sealing strip. Specific embodiments
[0020] In order to more clearly understand the above purpose, features and advantages of the utility model, the following will be further explained by the utility model with the figures and examples. It should be explained that the embodiment of the application and the features in the example can be combined mutually without conflict.
[0021] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiment disclosed in the following disclosure.
[0022] Example one
[0023] Please refer to Figures 1-4The utility model provides a technical scheme: a falling film distributor of distribution rate adjustable, including the shell 1, the surface of shell 1 is equipped with air pressure mouth, the upper surface of shell 1 is fixedly installed with import pipe 3, liquid passes through import pipe 3 and enters the flow pipe 4 inside, the bottom of import pipe 3 is fixedly installed with flow pipe 4, liquid flows in flow pipe 4 and is input to the shunt disc 11 on, the top of shell 1 is fixedly installed with motor 5, motor 5 drives rotating rod 6 to make adjusting disc 7 can rotate, the output of motor 5 is fixedly installed with rotating rod 6, the surface of rotating rod 6 is fixedly installed with adjusting disc 7, adjusting disc 7 is rotated through rotating rod 6 and adjusts the distribution rate of liquid, the surface of adjusting disc 7 is equipped with lower notch 8, liquid passes through the flow port 10 of flow limiting disc 9 and lower notch 8 of adjusting disc 7 and enters the flow guide disc 12, the surface of adjusting disc 7 is rotatably connected with flow limiting disc 9, the surface of flow limiting disc 9 is equipped with flow port 10, the inside of shell 1 is fixedly installed with shunt disc 11, the liquid of flow pipe 4 is evenly flowed to the surface of flow limiting disc 9, the inside of shell 1 is fixedly installed with flow guide disc 12, the surface of flow guide disc 12 is equipped with the confluence groove 13, liquid is evenly delivered to the next stage through the confluence groove 13 of flow guide disc 12 surface, the surface of rotating rod 6 is rotatably connected with the inside of shunt disc 11, the surface of rotating rod 6 is rotatably connected with the inside of flow limiting disc 9, so that rotating rod 6 can drive adjusting disc 7 to rotate, the inside of flow limiting disc 9 is fixedly connected with the inside of shell 1, so that flow limiting disc 9 can be fixed in the inside of shell 1, lower notch 8 is evenly distributed on the surface of adjusting disc 7, flow port 10 is evenly distributed on the surface of shunt disc 11, through the rotatable connection between lower notch 8 and flow port 10, the flow rate of liquid can be controlled, one end of lower notch 8 is rotatably connected with the bottom of flow limiting disc 9, one end of lower notch 8 is rotatably connected with one end of flow port 10, one end of flow port 10 is rotatably connected with the surface of adjusting disc 7, liquid continues to flow down through the flow port 10 of flow limiting disc 9 surface and the flow port 10 of adjusting disc 7.
[0024] Example two
[0025] Please refer to Figures 1-5 The inside of import pipe 3 is slidably connected with filter screen 14, solid impurities in liquid are filtered out, the surface of filter screen 14 is fixedly installed with handle 15, the installation and cleaning of filter screen 14 can be facilitated, the bottom of filter screen 14 is threadedly connected with filter residue screen 16, to prevent the impurities filtered out on filter screen 14 from falling into import pipe 3 with the impact of water flow, the top of import pipe 3 is rotatably connected with cover plate 17, to seal the device, the side of cover plate 17 is fixedly installed with sealing strip, to make the sealing performance of the whole better, the side of filter residue screen 16 is slidably connected with the inside of flow pipe 4, the sealing strip is fixedly connected between cover plate 17 and the top of import pipe 3, to make the device in a stationary state maintain good sealing performance.
[0026] Working principle: When falling film distribution is required, the liquid is first introduced through the inlet pipe 3. When the liquid passes through the filter screen 14 and the filter residue screen 16, impurities and particles mixed in the liquid are filtered out. The liquid then falls through the inlet pipe 3 and the flow pipe 4 onto the distribution plate 11 and then onto the guide plate 12. When the flow port 10 on the guide plate 12 does not contact and overlap with the lower groove 8 on the surface of the regulating plate 7, the liquid will not continue to flow downward. The regulating plate 7 can be rotated by the motor 5 driving the rotating rod 6. The rotation angle of the regulating plate 7 creates a rotational connection between the flow port 10 and the lower groove 8. The distribution rate of the liquid is adjusted according to the gap between the flow port 10 and the lower groove 8 after rotation. The liquid will continue to flow downward along the gap to the guide plate 12. The liquid will flow into the heat exchange tube through the collection groove 13 opened on the surface of the guide plate 12, and then the falling film evaporation can continue.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A falling film distributor with adjustable distribution rate, comprising a housing (1), characterized in that: The outer shell (1) has an air pressure port (2) on its surface. An inlet pipe (3) is fixedly installed on the upper surface of the outer shell (1). A flow pipe (4) is fixedly installed at the bottom end of the inlet pipe (3). A motor (5) is fixedly installed at the top end of the outer shell (1). A rotating rod (6) is fixedly installed at the output end of the motor (5). An adjusting plate (7) is fixedly installed on the surface of the rotating rod (6). A lower groove (8) is opened on the surface of the adjusting plate (7). A flow limiting plate (9) is rotatably connected to the surface of the adjusting plate (7). A flow opening (10) is opened on the surface of the flow limiting plate (9). A flow dividing plate (11) is fixedly installed inside the outer shell (1). A flow guiding plate (12) is fixedly installed inside the outer shell (1). A confluence groove (13) is opened on the surface of the flow guiding plate (12).
2. The adjustable-rate falling film distributor according to claim 1, characterized in that: The surface of the rotating rod (6) is rotatably connected to the interior of the diverter plate (11), the surface of the rotating rod (6) is rotatably connected to the interior of the flow limiting plate (9), and the side of the flow limiting plate (9) is fixedly connected to the interior of the outer shell (1).
3. The adjustable-rate falling film distributor according to claim 1, characterized in that: The lower slots (8) are evenly distributed on the surface of the regulating plate (7), and the flow ports (10) are evenly distributed on the surface of the diverter plate (11).
4. The adjustable-rate falling film distributor according to claim 1, characterized in that: One end of the lower slot (8) is rotatably connected to the bottom end of the flow limiting plate (9), one end of the lower slot (8) is rotatably connected to one end of the flow port (10), and one end of the flow port (10) is rotatably connected to the surface of the regulating plate (7).
5. The adjustable-rate falling film distributor according to claim 1, characterized in that: A filter screen (14) is slidably connected inside the inlet pipe (3). A handle (15) is fixedly installed on the surface of the filter screen (14). A filter residue screen (16) is threadedly connected to the bottom end of the filter screen (14). A cover plate (17) is rotatably connected to the top end of the inlet pipe (3). A sealing strip (18) is fixedly installed on the side of the cover plate (17).
6. The adjustable-rate falling film distributor according to claim 5, characterized in that: The side of the filter screen (16) is slidably connected to the inside of the flow tube (4), and the sealing strip (18) is fixedly connected to the top of the inlet tube (3) through the cover plate (17).