Vacuum low-temperature distillation evaporator

By introducing turntables, activated carbon packages and filter mesh structures into vacuum low-temperature distillation evaporators, the problem of poor compatibility of solution crystallization and filtration systems is solved, and the safety and efficiency of solution are improved.

CN223287635UActive Publication Date: 2025-09-02HUAEN KAIRUN IND TECHNOLOGY (ZIBO) CO LTD
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Patent Information

Application Number
CN202422405220.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-05
Publication Date
2025-09-02
Estimated Expiration
2034-10-05

AI Technical Summary

Technical Problem

During use, existing vacuum low-temperature distillation evaporators cannot effectively remove harmful substances, and they can easily lead to solution crystallization in low-temperature environments. The filtration system has poor compatibility with different concentrations of stock solutions, which affects working efficiency and storage space.

Method used

A distillate storage tank with a turntable, activated carbon bag, rotating rod and scraper was designed. Combined with a filter and funnel structure, the secondary filtration of the solution and the prevention of crystallization were achieved, and compatibility with different concentrations of stock solutions was enhanced.

Benefits of technology

It improves the safety and storage space of the solution, reduces the operating intensity, improves work efficiency and adaptability to different concentrations of stock solutions.

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Abstract

The vacuum low-temperature distillation evaporator comprises a machine frame, a cold compressor, a boiling tank, a condenser, a heat exchanger, a condensation tank and a vacuum pump, the side face of the machine frame is fixedly connected with a third supporting seat, a groove is formed in the third supporting seat, a distillate storage tank is inserted into the groove, and a rotating disc is installed at the top of the distillate storage tank. A handle is installed at the top end of the rotating disc, a rotating rod is installed in the distillate storage tank and fixedly connected with the rotating disc, and a scraping plate is installed on the surface of the rotating rod. According to the vacuum low-temperature distillation evaporator, through the rotating disc arranged at the top of the distillate storage tank and the activated carbon, the rotating rod and the scraping plate arranged in the distillate storage tank, a solution enters the tank body through the activated carbon bag, and the rotating disc drives the scraping plate on the rotating rod, so that the inner wall of the tank body is prevented from being crystallized due to too low temperature; and the possibility of solution crystallization caused by surrounding environment factors is reduced, so that the working efficiency is improved to a certain extent.
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Description

Technical Field

[0001] The utility model belongs to the technical field of evaporation equipment, in particular to a vacuum low-temperature distillation evaporator. Background Art

[0002] Vacuum low-temperature distillation evaporator is an advanced evaporation equipment, mainly used for liquid concentration and evaporation. Its working principle is to reduce the boiling point of the liquid under the action of vacuum negative pressure, so that the original liquid boils and evaporates at a lower temperature. The evaporated steam is condensed into liquid water through the condensation system and discharged, thereby achieving liquid concentration and reduction. At the same time, due to the low evaporation temperature, it can also reduce the risk of material decomposition and ensure excellent water quality. This evaporator has broad application prospects in the chemical, food, pharmaceutical and other industries.

[0003] The vacuum low-temperature distillation evaporators currently on the market have the following problems when in use:

[0004] 1. During the use of vacuum low-temperature distillation evaporators, most evaporators are often operated by boiling and condensing systems, and the condensed liquid water is directly discharged. This operation is quick and convenient. However, for the original liquid that has adverse effects on the human body, some harmful substances cannot be removed by boiling and condensing systems alone, so the discharged solution will also be affected to a certain extent. Moreover, when the ambient temperature is too low, the temperature of the solution discharged by the condensation system is also low. The two affect each other, which easily causes the solution to crystallize, thereby accumulating on the inner wall of the storage space, compressing the storage space of the condensed water, and thus reducing the work efficiency to a certain extent;

[0005] 2. During the use of vacuum low-temperature distillation evaporators, traditional evaporators often have fewer filtering components. This more streamlined filtering system can often effectively distill and evaporate liquids with low evaporation liquid concentrations. However, when the concentration of the evaporated liquid is too high or there are too many impurities, it is often necessary to screen it in advance, thereby reducing the possibility of internal wear of the evaporator, increasing the operating workload to a certain extent, and having low compatibility with liquids of different concentrations. Utility Model Content

[0006] The purpose of the utility model is to provide a vacuum low-temperature distillation evaporator to solve the technical problems raised in the background technology.

[0007] To achieve the above-mentioned objectives, the specific technical solution of the utility model is as follows: a vacuum low-temperature distillation evaporator, comprising a frame, a cold compressor, a boiling pot, a condenser, a heat exchanger, a condensation pot and a vacuum pump, the side of the frame being fixedly connected to a third support seat, a groove being provided inside the third support seat for inserting a distillate storage tank, a turntable being installed on the top of the distillate storage tank, a handle being installed on the top of the turntable, a rotating rod being installed inside the distillate storage tank, the rotating rod being fixedly connected to the turntable, a scraper being installed on the surface of the rotating rod, and an activated carbon bag being installed on the inner wall of the distillate storage tank.

[0008] Preferably, the surface of the frame is fixedly connected to the first support frame, the first support frame is welded to the boiling pot, a hole is opened on the surface of the boiling pot to insert the water inlet pipe, the top of the water inlet pipe is connected to the funnel, a filter is installed on the inner wall of the funnel, a handle is installed on the top of the filter, and a grid cover is provided on the top of the funnel.

[0009] Preferably, the surface of the boiling tank is connected to a refrigeration compressor via a pipe, the surface of the boiling tank is connected to a heat exchanger via a pipe, a condenser is installed on the inner wall of the boiling tank, the condenser is connected to the heat exchanger via a pipe, the distillate storage tank is connected to the distillate storage tank via a pipe, a screw is installed inside the boiling tank, and a scraper is installed on the surface of the screw.

[0010] Preferably, the surface of the frame is fixedly connected to the second support frame, the surface of the second support frame is fixedly connected to the condensation tank, the condenser is connected to the condensation tank through a pipeline, the condensation tank is connected to the vacuum pump through a pipeline, the condensation tank is connected to the distillate storage tank through a pipeline, and the distillate storage tank is connected to the distillate storage tank through a pipeline.

[0011] Preferably, the surface of the frame is fixedly connected to the first support seat, the interior of the first support seat is provided with a groove for inserting the distillate storage tank, the distillate storage tank is connected to the distillate storage tank through a pipeline, the surface of the distillate storage tank is provided with a distillate tank water outlet hole, and the distillate tank water outlet hole is connected to a distillate water plug.

[0012] Preferably, the surface of the frame is fixedly connected to the second support seat, a groove is provided inside the second support seat to insert the sedimentation liquid tank, a sedimentation liquid tank drain port is provided at one end of the sedimentation liquid tank, and the sedimentation liquid tank drain port is socketed with a sedimentation liquid plug.

[0013] The vacuum low-temperature distillation evaporator of the utility model has the following advantages:

[0014] 1. This vacuum low-temperature distillation evaporator uses a turntable provided on the top of the distillate storage tank, and activated carbon, a rotating rod, and a scraper provided inside the distillate storage tank. The solution enters the tank through the activated carbon bag. The turntable drives the scraper on the rotating rod to prevent crystallization on the inner wall of the tank due to excessively low temperature. The activated carbon achieves secondary filtration of the solution, thereby improving the safety of the solution, reducing the possibility of solution crystallization due to environmental factors to a certain extent, and increasing the storage space of the solution, thereby improving work efficiency to a certain extent.

[0015] 2. This vacuum low-temperature distillation evaporator has a funnel above the water inlet pipe. The inside of the funnel is provided with a filter screen that can be replaced by a handle, and the top of the funnel is provided with a grid cover. This structural design can effectively isolate individual solid particles, reduce the wear of the inner wall of the machine due to solid particles, thereby reducing the operating workload to a certain extent, and has high compatibility with different concentration types of raw liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0019] Figure 3 For the utility model Figure 2 Enlarged view of part A;

[0020] Figure 4 For the utility model Figure 2 Enlarged view of part B.

[0021] Explanation of the markings in the figure: 1. Frame; 2. First support frame; 3. Second support frame; 4. First support base; 5. Second support base; 6. Third support base; 7. Distilled water plug; 8. Sedimentation liquid plug; 9. Screw; 10. Scraper; 11. Refrigeration compressor; 12. Boiling pot; 13. Condenser; 14. Heat exchanger; 15. Condensation pot; 16. Vacuum pump; 17. Distillate storage tank; 18. Sedimentation liquid tank; 19. Sedimentation liquid tank drain outlet; 20. Turntable; 21. Distillate storage tank; 22. Rotating rod; 23. Scraper; 24. Distillate tank water outlet; 25. Activated carbon bag; 26. Grid cover; 27. Handle; 28. Filter; 29. ​​Water inlet pipe; 30. Funnel; 31. Handle. DETAILED DESCRIPTION

[0022] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying 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 on the embodiments of the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0025] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a vacuum low-temperature distillation evaporator of the present invention in conjunction with the accompanying drawings.

[0028] like Figure 1-4 As shown, a vacuum low-temperature distillation evaporator of the present invention includes a frame 1, a cold compressor, a boiling pot 12, a condenser 13, a heat exchanger 14, a condensing pot 15 and a vacuum pump 16. The side of the frame 1 is fixedly connected to the third support seat 6. The interior of the third support seat 6 is provided with a groove for inserting the distillate storage tank 21. A turntable 20 is installed on the top of the distillate storage tank 21. A rotating rod 22 is installed inside the distillate storage tank 21. The rotating rod 22 is fixedly connected to the turntable 20. A handle 31 is installed on the top of the turntable 20. A scraper 23 is installed on the surface of the rotating rod 22. The turntable 20 is rotated by the handle 31. The turntable 20 drives the scraper 23 on the surface of the rotating rod 22. The scraper 23 rotates to prevent the distilled water from condensing and crystallizing due to weather factors. An activated carbon bag 25 is installed on the inner wall of the distillate storage tank 21. The condensed distilled water is filtered twice through the activated carbon bag 25, and the safety of the condensed distilled water is improved to a certain extent.

[0029] The surface of the frame 1 is fixedly connected to the first support frame 2, the first support frame 2 is welded to the boiling pot 12, a hole is opened on the surface of the boiling pot 12 to insert the water inlet pipe 29, the top of the water inlet pipe 29 is connected to the funnel 30, the inner wall of the funnel 30 is installed with a filter screen 28, the top of the filter screen 28 is installed with a handle 27, and the top of the funnel 30 is provided with a grid cover 26. The handle 27 can be used to facilitate the replacement of the filter screen 28. The grid cover 26 and the filter screen 28 can effectively isolate individual solid particles and reduce the workload of the evaporator.

[0030] The surface of the boiling tank 12 is connected to the refrigeration compressor 11 through a pipe, the surface of the boiling tank 12 is connected to the heat exchanger 14 through a pipe, the condenser 13 is installed on the inner wall of the boiling tank 12, the condenser 13 is connected to the heat exchanger 14 through a pipe, the distillate storage tank 21 is connected to the distillate storage tank 17 through a pipe, the inside of the boiling tank 12 is installed with a screw rod 9, and the surface of the screw rod 9 is installed with a scraper 10. Through the interaction of the refrigeration compressor 11, the heat exchanger 14 and the condenser 13, the raw liquid to be evaporated is separated into precipitate and distilled water.

[0031] The surface of the frame 1 is fixedly connected to the second support frame 3, the surface of the second support frame 3 is fixedly connected to the condensation tank 15, the condenser 13 is connected to the condensation tank 15 through a pipeline, the condensation tank 15 is connected to the vacuum pump 16 through a pipeline, the condensation tank 15 is connected to the distillate storage tank 17 through a pipeline, and the distillate storage tank 17 is connected to the distillate storage tank 21 through a pipeline. Through the coordinated operation of the condensation tank 15 and the vacuum pump 16, the condensed distillate can be distilled through the pipeline to the distillate storage tank 17.

[0032] The surface of the frame 1 is fixedly connected to the first support base 4. A groove is provided inside the first support base 4 to insert the distillate storage tank 17. The distillate storage tank 17 is connected to the distillate storage tank 21 through a pipeline. A distillate tank water outlet 24 is provided on the surface of the distillate storage tank 21. The distillate tank water outlet 24 is sleeved with the distillate water plug 7. The condensed distilled water can be discharged smoothly through the distillate tank water outlet 24 so that it can be recycled for secondary use.

[0033] The surface of the frame 1 is fixedly connected to the second support base 5. A groove is provided inside the second support base 5 to insert the sedimentation liquid tank 18. A sedimentation liquid tank drain port 19 is provided at one end of the sedimentation liquid tank 18. The sedimentation liquid tank drain port 19 is sleeved with the sedimentation liquid plug 8. The sedimentation liquid tank 18 is kept sealed by the sedimentation liquid plug 8 to store the sedimentation liquid.

[0034] The working principle of the vacuum low-temperature distillation evaporator: When using this vacuum low-temperature distillation evaporator, the operator needs to transport the entire evaporator body to a suitable position, and the prepared raw liquid needs to be screened through the grid cover 26 and the filter screen 28 into the funnel 30. After entering the funnel 30, the raw liquid flows into the boiling pot 12 through the water inlet pipe 29, and is connected to the moving motor through one end of the screw rod 9. The moving motor drives the screw rod 9 to rotate, and the scraper 10 rotates inside the boiling pot 12 to achieve the purpose of accelerating boiling. The refrigeration compressor 11 and the heat exchanger 14 work to make the raw liquid in the boiling pot 12 reach the boiling point under the negative vacuum state, so that the raw liquid evaporates to form a lot of water vapor, and the water vapor is condensed and liquefied into condensed distilled water through the condenser 13, and enters the condensation pot 15 through the pipeline, and then the condensation pot 15 passes through The pipeline flows into the distillate storage tank 17, passes through the distillate storage tank 17, passes through the activated carbon bag 25 and flows into the distillate storage tank 21. The top of the distillate storage tank 21 is provided with a turntable 20 and a handle 31. The turntable 20 is rotated by the handle 31 to drive the rotating rod 22 and the scraper 23, so that the condensed distillate reduces the possibility of crystallization. When the condensed distilled water needs to be reused, the distillate tank water outlet 24 opened on the surface of the distillate storage tank 21 is connected to the distillate plug 7. The distillate plug 7 is pulled out to allow the condensed distilled water to flow out for the purpose of recycling. After the evaporation of the original liquid is completed, the remaining precipitate is obtained. The precipitate flows into the pipeline through the boiling pot 12 and reaches the sedimentation liquid tank 18. When it reaches the vicinity of the floor drain or the operator takes out the collection device, the sedimentation liquid plug 8 on the sedimentation liquid tank drain outlet 19 opened on the surface of the sedimentation liquid tank 18 is pulled out to allow the sedimentation liquid to flow out.

[0035] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A vacuum low-temperature distillation evaporator, comprising a frame (1), a cold compressor, a boiling pot (12), a condenser (13), a heat exchanger (14), a condensing pot (15) and a vacuum pump (16), characterized in that: The side of the frame (1) is fixedly connected to the third support seat (6), the interior of the third support seat (6) is provided with a groove for inserting the distillate storage tank (21), the top of the distillate storage tank (21) is installed with a turntable (20), the top of the turntable (20) is installed with a handle (31), the interior of the distillate storage tank (21) is installed with a rotating rod (22), the rotating rod (22) is fixedly connected to the turntable (20), the top of the turntable (20) is installed with a handle (31), the surface of the rotating rod (22) is installed with a scraper (23), and the inner wall of the distillate storage tank (21) is installed with an activated carbon bag (25).

2. The vacuum low-temperature distillation evaporator according to claim 1, characterized in that: The surface of the frame (1) is fixedly connected to a first support frame (2), the first support frame (2) is welded to a boiling pot (12), a hole is provided on the surface of the boiling pot (12) for inserting a water inlet pipe (29), the top end of the water inlet pipe (29) is sleeved with a funnel (30), a filter screen (28) is installed on the inner wall of the funnel (30), a handle (27) is installed on the top end of the filter screen (28), and a grid cover (26) is provided on the top end of the funnel (30).

3. The vacuum low-temperature distillation evaporator according to claim 1, characterized in that: The surface of the boiling tank (12) is connected to a refrigeration compressor (11) via a pipeline, the surface of the boiling tank (12) is connected to a heat exchanger (14) via a pipeline, a condenser (13) is installed on the inner wall of the boiling tank (12), the condenser (13) is connected to the heat exchanger (14) via a pipeline, the distillate storage tank (21) is connected to a distillate storage tank (17) via a pipeline, a screw rod (9) is installed inside the boiling tank (12), and a scraper (10) is installed on the surface of the screw rod (9).

4. The vacuum low-temperature distillation evaporator according to claim 1, characterized in that: The surface of the frame (1) is fixedly connected to the second support frame (3), the surface of the second support frame (3) is fixedly connected to the condensation tank (15), the condenser (13) is connected to the condensation tank (15) through a pipeline, the condensation tank (15) is connected to the vacuum pump (16) through a pipeline, the condensation tank (15) is connected to the distillate storage tank (17) through a pipeline, and the distillate storage tank (17) is connected to the distillate storage tank (21) through a pipeline.

5. The vacuum low-temperature distillation evaporator according to claim 1, characterized in that: The surface of the frame (1) is fixedly connected to a first support seat (4); a groove is provided inside the first support seat (4) for inserting a distillate storage tank (17); the distillate storage tank (17) is connected to a distillate storage tank (21) via a pipeline; a distillate tank water outlet hole (24) is provided on the surface of the distillate storage tank (21); and the distillate tank water outlet hole (24) is sleeved with a distillate water plug (7).

6. The vacuum low-temperature distillation evaporator according to claim 1, characterized in that: The surface of the frame (1) is fixedly connected to the second support seat (5), the interior of the second support seat (5) is provided with a groove for inserting a sedimentation liquid tank (18), one end of the sedimentation liquid tank (18) is provided with a sedimentation liquid tank drain port (19), and the sedimentation liquid tank drain port (19) is sleeved with a sedimentation liquid plug (8).