A four-effect evaporator for energy-saving evaporation of high-concentration syrup

Abstract

The utility model relates to the field of evaporators, and discloses a four-effect evaporator for energy-saving evaporation of high-concentration syrup, comprising: a cleaning component, a top cover, a middle tube and a bottom cover, wherein the top cover is fixedly mounted on the top end of the middle tube, the bottom cover is fixedly connected to the bottom end of the middle tube, and the cleaning component is fixedly mounted at the inner center of the middle tube; a second conveying pipe is fixedly mounted on the top outer surface of the top cover, a first conveying pipe is arranged on the outer surface of the middle tube, a discharge pipe is arranged at the bottom end of the bottom cover, a heating chamber is opened inside the middle tube, and evaporation tubes are evenly arranged inside the heating chamber. The utility model can automatically clean the inner surface of the evaporator by arranging the cleaning component inside the evaporator, so as to avoid disassembling the evaporator for cleaning when the inside of the evaporator is blocked.

Description

Technical Field

[0001] The utility model relates to the field of evaporators, in particular to a four-effect evaporator for energy-saving evaporation of high-concentration syrup. Background Art

[0002] Four-effect evaporator, as the name implies, is an evaporator with four effects. It is composed of a heater and four refrigerators. One compressor is the main air supply source, and the other four refrigerators are auxiliary air sources. In actual application, due to the different use environments and temperature requirements of each user, different types of compressors and corresponding condensers and other equipment need to be selected according to different use conditions.

[0003] The four-effect evaporator is widely used in the chemical industry for the concentration and recovery of chemicals, solvents and solutions. For example, it can be used for separation and concentration processes in the preparation of nanoparticles, extracting pure chemicals or recovering valuable solvents. It can also be used for concentration and recovery processes in the food and beverage industry. It can evaporate the water in liquids such as juice, berry juice, dairy products, beer, wine, etc., so as to achieve the purpose of concentration and improve product quality. It can also be used in the field of sewage treatment. It can evaporate the water in sewage, achieve the concentration and recovery of wastewater, and reduce the cost of wastewater discharge and treatment.

[0004] However, during the long-term use of the high-concentration syrup evaporator, it is unable to automatically clean the scale on the internal surface, causing dissolved substances in the water, such as calcium, magnesium, iron and other minerals, to gradually deposit on the inner surface of the evaporator as the water evaporates, forming scale. As time goes by, the scale will become thicker and thicker, eventually causing the evaporator to be blocked, thus affecting the normal use of the evaporator. Moreover, when the evaporator is blocked, the evaporator needs to be disassembled to clean the scale on the inner surface of the tube, thus affecting the normal use of the evaporator. Utility Model Content

[0005] The utility model aims to provide a four-effect evaporator for energy-saving evaporation of high-concentration syrup, and solves the following technical problems: how to make the evaporator have a self-cleaning function and ensure the long-term normal use of the evaporator.

[0006] The purpose of the utility model can be achieved by the following technical scheme: A four-effect evaporator for energy-saving evaporation of high-concentration syrup, comprising: a cleaning component, a top cover, a middle tube and a bottom cover, wherein the top cover is fixedly installed on the top end of the middle tube, the bottom cover is fixedly connected to the bottom end of the middle tube, and the cleaning component is fixedly installed in the center of the middle tube;

[0007] A second delivery pipe is fixedly mounted on the top outer surface of the top cover, a first delivery pipe is arranged on the outer surface of the middle tube, a discharge pipe is arranged at the bottom end of the bottom cover, a heating chamber is opened inside the middle tube, and evaporation pipes are evenly arranged inside the heating chamber;

[0008] The cleaning component includes a connecting rod, a hydraulic cylinder and a connecting plate. The top center of the connecting plate is fixedly connected to the bottom center of the hydraulic cylinder. The top of the connecting rod is evenly fixedly connected to the bottom surface of the connecting plate. The bottom end of the connecting rod is fixedly connected to a spiral shaft. The outer surface of the spiral shaft is spirally sleeved with a ring. The center of the upper surface of the ring is provided with a sleeve hole. The outer surface of the ring is fixedly connected to a scraper.

[0009] As a preferred solution of the utility model: the scraper blades are divided into three groups and fixedly connected to each other.

[0010] As a preferred solution of the utility model: the top of the scraper is rotatably clamped on the two ends of the interior of the evaporation tube.

[0011] As a preferred solution of the utility model: the scraper is wedge-shaped on both sides, and both sides of the scraper are in close contact with the inner surface of the evaporation tube.

[0012] As a preferred solution of the utility model: the collar is spirally sleeved on the outer surface of the spiral shaft through the sleeve hole.

[0013] As a preferred solution of the utility model: the sleeve hole is connected to the middle outer surface of the scraper.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model can drive the scraper to rotate by controlling the lifting and lowering of the spiral shaft. Therefore, each time the evaporator ends its operation, the cleaning component is promptly controlled to operate and the inner surface of the evaporation tube inside the evaporator is cleaned to ensure the normal circulation inside the evaporation tube, thereby avoiding the accumulation of scale on the inner surface of the evaporator and affecting the normal use of the evaporator.

[0016] (2) The utility model can automatically clean the inner surface of the evaporator by arranging a cleaning component inside the evaporator, thereby avoiding the need to disassemble the evaporator for cleaning when the inside of the evaporator is blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the structure of a four-effect evaporator;

[0019] Figure 2 Schematic diagram of the evaporator structure;

[0020] Figure 3 It is a schematic diagram of the cutaway structure of the evaporator;

[0021] Figure 4 It is a schematic diagram of the cleaning component structure;

[0022] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Description of the drawings: 1. Cleaning parts; 2. Top cover; 3. Middle cylinder; 4. Bottom cover; 5. Discharge pipe; 6. First delivery pipe; 7. Second delivery pipe; 8. Evaporation pipe; 9. Heating chamber; 11. Connecting rod; 12. Hydraulic cylinder; 13. Connecting plate; 14. Hole; 15. Ring; 16. Screw shaft; 17. Slag scraper. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 As shown, the utility model is a four-effect evaporator for energy-saving evaporation of high-concentration syrup, comprising: a cleaning component 1, a top cover 2, a middle tube 3 and a bottom cover 4, the top cover 2 is fixedly installed on the top end of the middle tube 3, the bottom cover 4 is fixedly connected to the bottom end of the middle tube 3, and the cleaning component 1 is fixedly installed in the center of the middle tube 3;

[0026] A second delivery pipe 7 is fixedly mounted on the top outer surface of the top cover 2, a first delivery pipe 6 is arranged on the outer surface of the middle tube 3, a discharge pipe 5 is arranged at the bottom end of the bottom cover 4, a heating chamber 9 is opened inside the middle tube 3, and evaporation pipes 8 are evenly arranged inside the heating chamber 9;

[0027] The cleaning component 1 includes a connecting rod 11, a hydraulic cylinder 12 and a connecting plate 13. The top center of the connecting plate 13 is fixedly connected to the bottom center of the hydraulic cylinder 12. The top of the connecting rod 11 is evenly fixedly connected to the bottom surface of the connecting plate 13. The bottom end of the connecting rod 11 is fixedly connected to a spiral shaft 16. The outer surface of the spiral shaft 16 is spirally sleeved with a ring 15. The center of the upper surface of the ring 15 is provided with a sleeve hole 14. The outer surface of the ring 15 is fixedly connected to a scraper 17.

[0028] The scrapers 17 are divided into three groups and fixedly connected to each other. The tops of the scrapers 17 are rotatably clamped on the two ends of the evaporation tube 8 .

[0029] Through the above technical solution, the scraper 17 can be divided into three groups and fixedly connected to each other, so that the inner surface of the evaporator tube 8 can be fully cleaned. The top of the scraper 17 is rotatably connected to the two ends of the inside of the evaporator tube 8, and the scraper 17 can be limited inside the evaporator tube 8 to ensure that the scraper 17 is driven to rotate when the spiral shaft 16 is raised and lowered.

[0030] Both sides of the scraper 17 are wedge-shaped, and both sides of the scraper 17 are in close contact with the inner surface of the evaporation tube 8 .

[0031] Through the above technical solution, the scraper 17 is wedge-shaped on both sides, and both sides of the scraper 17 are in close contact with the inner surface of the evaporation tube 8, so when the scraper 17 rotates, the scale on the inner surface of the evaporation tube 8 can be cleaned.

[0032] The sleeve ring 15 is spirally sleeved on the outer surface of the spiral shaft 16 through the sleeve hole 14 , and the sleeve hole 14 is connected to the middle outer surface of the scraper 17 .

[0033] Through the above technical solution, the ring 15 can be spirally sleeved on the outer surface of the spiral shaft 16 through the sleeve hole 14, so when the spiral shaft 16 rises and falls, the ring 15 can be driven to rotate. The sleeve hole 14 is connected to the middle outer surface of the scraper 17, so when the ring 15 rotates, the scraper 17 will be driven to rotate synchronously.

[0034] The working principle of the utility model is as follows: in the process of making sugar using a four-effect evaporator, the initial evaporator allows the syrup to enter the initial evaporator, and the water in the syrup is evaporated by heating the steam in the evaporator. This process will produce steam and relatively concentrated syrup, and the steam generated by the initial evaporator is sent to the first-stage steam compressor, where the steam is compressed and generates additional heat energy, which can be recovered and provided to other evaporators. The high-pressure steam provided by the first-stage steam compressor enters the secondary evaporator. In this step, the relatively concentrated syrup enters the secondary evaporator, and the syrup is further concentrated by evaporating again. The steam generated by the secondary evaporator is sent to the second-stage steam compressor, where the steam is also compressed to generate additional heat energy for use by other evaporators. The steam generated is condensed by an efficient wet condenser to be converted into a liquid form. During the whole process, the syrup is gradually concentrated in each level of the evaporator, and the water is gradually evaporated out, and energy is efficiently utilized by heat recovery. Therefore, after each sugar making is completed, the hydraulic cylinder 12 is started to drive the connecting plate at the bottom 13 is lifted and lowered, and the connecting plate 13 will drive the spiral shaft 16 to lift and lower through the connecting rod 11 at the bottom. During the lifting process of the spiral shaft 16, the ring 15 will be driven to rotate in the center of the evaporator tube 8. While the ring 15 is rotating, the scraper 17 on the outer surface will be driven to rotate synchronously. When the scraper 17 rotates, it will rotate closely against the inner surface of the evaporator tube 8, so that the thin scale adhered to the inner surface of the evaporator tube 8 will be scraped off. Therefore, after each use of the evaporator, the inner surface of the evaporator tube 8 needs to be cleaned, which can prevent scale from accumulating on the inner surface of the evaporator tube 8 and blocking the normal use of the evaporator tube 8. While the scraper 17 is cleaning the inner surface of the evaporator tube 8, the cleaning liquid is transported to the top of the middle cylinder 3, so that the cleaning liquid flushes the scale scraped by the scraper 17, so that the scale slides down and is discharged with the cleaning liquid, and finally discharged from the inside of the evaporator through the discharge pipe 5. In this way, the normal operation of the evaporator for a long time can be guaranteed. Therefore, by arranging the cleaning component 1 inside the evaporator, the inner surface of the evaporator can be automatically cleaned, and the evaporator can be disassembled for cleaning when the inside of the evaporator is blocked.

[0035] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A four-effect evaporator for energy-saving evaporation of high-concentration syrup, comprising: A cleaning component (1), a top cover (2), a middle tube (3) and a bottom cover (4), wherein the top cover (2) is fixedly mounted on the top end of the middle tube (3), the bottom cover (4) is fixedly connected to the bottom end of the middle tube (3), and the cleaning component (1) is fixedly mounted at the inner center of the middle tube (3); The invention is characterized in that a second delivery pipe (7) is fixedly mounted on the top outer surface of the top cover (2), a first delivery pipe (6) is arranged on the outer surface of the middle tube (3), a discharge pipe (5) is arranged at the bottom end of the bottom cover (4), a heating chamber (9) is opened inside the middle tube (3), and evaporation tubes (8) are evenly arranged inside the heating chamber (9); The cleaning component (1) comprises a connecting rod (11), a hydraulic cylinder (12) and a connecting plate (13); the top center of the connecting plate (13) is fixedly connected to the bottom center of the hydraulic cylinder (12); the top end of the connecting rod (11) is evenly fixedly connected to the bottom surface of the connecting plate (13); the bottom end of the connecting rod (11) is fixedly connected to a spiral shaft (16); the outer surface of the spiral shaft (16) is spirally sleeved with a collar (15); the center of the upper surface of the collar (15) is provided with a collar hole (14); and the outer surface of the collar (15) is fixedly connected to a scraper (17).

2. A four-effect evaporator for energy-saving evaporation of high-concentration syrup according to claim 1, characterized in that: The scraper blades (17) are arranged in three groups and are fixedly connected to each other.

3. A four-effect evaporator for energy-saving evaporation of high-concentration syrup according to claim 2, characterized in that: The top of the scraper (17) is rotatably clamped on the two inner ends of the evaporation tube (8).

4. A four-effect evaporator for energy-saving evaporation of high-concentration syrup according to claim 3, characterized in that: The scraper (17) is arranged in a wedge shape on both sides, and both sides of the scraper (17) are in close contact with the inner surface of the evaporation tube (8).

5. A four-effect evaporator for energy-saving evaporation of high-concentration syrup according to claim 4, characterized in that: The sleeve ring (15) is spirally sleeved on the outer surface of the spiral shaft (16) through the sleeve hole (14).

6. A four-effect evaporator for energy-saving evaporation of high-concentration syrup according to claim 5, characterized in that: The sleeve hole (14) is connected to the middle outer surface of the scraper (17).

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