Single-effect evaporator

Abstract

The utility model discloses a single-effect evaporator, which relates to the field of food processing and comprises a heating tank, an evaporating tank and a condenser, the evaporating tank is communicated with the condenser, a storage tank is arranged at the bottom of the condenser, and the storage tank is communicated with a condensed water outlet of the condenser through a communicating pipe; the heating tank comprises a tank body, a circulating pump is arranged on the upper portion of the tank body, the input end of the circulating pump is communicated with the tank body, and the output end of the circulating pump is communicated with the evaporating tank through an upper connecting pipe. The device has the beneficial effects that the surface of the evaporation tank can be heated through the steam heating sleeve, sweet water in the evaporation tank can be directly heated through the heating pipe, the heating efficiency is improved, the flowing speed of the sweet water can be increased through the circulating pump, the heating efficiency of the device can be further improved, and meanwhile the flowing sweet water is used for pushing the driving assembly; and the driving assembly drives the arc-shaped plate of the defoaming mechanism to rotate, so that the continuity of the defoaming effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, specifically to a single-effect evaporator. Background Technology

[0002] In the production process of sugar water, it is often necessary to evaporate and concentrate the sugar water to improve the sugar concentration and product quality.

[0003] Traditional evaporators heat the surface of the tank by steam when evaporating sugar water. Since the heat cannot be directly transferred to the inside of the tank, the heating efficiency is slow. In addition, the self-circulation of the sugar water is only achieved by the density difference formed after it is heated, and the circulation speed is insufficient, which also affects the heating efficiency.

[0004] Furthermore, evaporators generate foam during use. Existing evaporator defoaming plates are composed of several fine filaments, and the mesh is easily clogged, resulting in poor defoaming effect after a period of use. Utility Model Content

[0005] The purpose of this invention is to provide a single-effect evaporator to solve the above problems, as detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention provides a single-effect evaporator, comprising a heating tank, an evaporating tank and a condenser, wherein the evaporating tank is connected to the condenser, and a storage tank is provided at the bottom of the condenser, and the storage tank is connected to the condensate drain outlet of the condenser through a connecting pipe.

[0008] The heating tank includes a tank body, a circulation pump is provided on the upper part of the tank body, the input end of the circulation pump is connected to the tank body, and the output end of the circulation pump is connected to the evaporator through an upper connecting pipe, and the bottom of the evaporator is connected to the bottom of the tank body through a lower connecting pipe.

[0009] The evaporator is equipped with a defoaming mechanism, which includes several rotating arc-shaped plates. The upper connecting pipe is equipped with a driving component, which can generate power under the impact of sugar water and drive the arc-shaped plates to rotate.

[0010] The surface of the tank is fitted with a steam heating sleeve, and several heating pipes are installed through the tank. Both ends of the heating pipes are connected to the cavity inside the steam heating sleeve for containing high-temperature steam.

[0011] In the above-mentioned single-effect evaporator, high-temperature steam enters the steam heating sleeve and heating tube to increase the temperature of the steam heating sleeve and heating tube. The steam heating sleeve can heat the surface of the evaporator, and the heating tube can directly heat the sugar water inside the evaporator, thereby improving the heating efficiency.

[0012] The circulation pump increases the flow rate of sugar water between the steam heating sleeve and the evaporator. The flowing sugar water drives the drive component, which in turn rotates the arc plate of the defoaming mechanism. The arc plate impacts the sugar water foam, breaking it up. Meanwhile, the tiny bubbles adhering to the grooves of the arc plate are thrown onto the inner wall of the evaporator by centrifugal force, further defoaming through impact.

[0013] Preferably, the top of the evaporator is connected to a pipe, and the other end of the pipe is connected to a negative pressure vacuum pump, with the input end of the negative pressure vacuum pump connected to the condenser.

[0014] Preferably, the evaporator is provided with an observation window, and the height of the observation window is the same as the height of the upper connecting pipe. The side of the evaporator is provided with a sugar addition port.

[0015] Preferably, a valve is provided at the bottom of the heating tank.

[0016] Preferably, the defoaming mechanism includes a rotating shaft, and two fixed plates are distributed vertically inside the evaporator. The rotating shaft is vertically rotatably arranged between the two fixed plates, and several arc-shaped plates are fixed to the surface of the rotating shaft along the radial direction of the rotating shaft.

[0017] Preferably, the arc-shaped plate is located above the upper connecting pipe.

[0018] Preferably, the drive assembly includes a second rotating shaft, two second fixed plates are fixed inside the upper connecting pipe, and a second rotating shaft is rotatably arranged between the two second fixed plates along the length of the upper connecting pipe. Several blades are fixedly arranged on the surface of the second rotating shaft. The second rotating shaft passes into the evaporator, and bevel gears are fixed on the surfaces of both the second rotating shaft and the first rotating shaft, and the two bevel gears mesh.

[0019] Preferably, the second fixing plate is provided with a hollowed-out groove.

[0020] The beneficial effects are:

[0021] The steam heating sleeve heats the surface of the evaporator, while the heating pipes directly heat the sugar water inside the evaporator, improving heating efficiency. The circulating pump increases the flow rate of the sugar water, further enhancing the heating efficiency of the device. Simultaneously, the flowing sugar water drives the drive assembly, which in turn rotates the arc-shaped plate of the defoaming mechanism. The arc-shaped plate impacts and breaks up the foam in the sugar water. At the same time, the grooves in the arc-shaped plate collect any foam that is not directly broken and throw it onto the inner wall of the evaporator through centrifugal force, causing it to break and achieving further defoaming, ensuring the continuity of the defoaming effect. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the steam heating sleeve of this utility model;

[0026] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the evaporator of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the defoaming mechanism of this utility model.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Heating tank; 2. Evaporator; 3. Circulating pump; 4. Upper connecting pipe; 5. Lower connecting pipe; 6. Valve; 7. Observation window; 8. Pipeline; 9. Negative pressure vacuum pump; 10. Condenser; 11. Storage tank; 12. Connecting pipe; 13. Tank body; 14. Steam heating sleeve; 15. Steam inlet; 16. Condensate outlet; 17. Heating tube; 18. Defoaming mechanism; 19. Arc plate; 20. Fixing plate one; 21. Rotating shaft one; 22. Drive assembly; 23. Rotating shaft two; 24. Bevel gear; 25. Fixing plate two; 26. Paddle. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] See Figures 1-5 As shown, this utility model provides a single-effect evaporator, including a heating tank 1, an evaporating tank 2 and a condenser 10. The evaporating tank 2 is connected to the condenser 10, and a storage tank 11 is provided at the bottom of the condenser 10. The storage tank 11 is connected to the condensate drain outlet of the condenser 10 through a connecting pipe 12.

[0032] Evaporator 2 and condenser 10 are both existing technologies, and their principles and structures will not be described in detail here.

[0033] Heating tank 1 includes tank body 13. A circulation pump 3 is installed on the upper part of tank body 13. The input end of circulation pump 3 is connected to tank body 13, and the output end of circulation pump 3 is connected to evaporator 2 through upper connecting pipe 4. The bottom of evaporator 2 is connected to the bottom of tank body 13 through lower connecting pipe 5.

[0034] An antifoaming mechanism 18 is provided inside the evaporator 2. The antifoaming mechanism 18 includes several rotating arc plates 19. A drive assembly 22 is provided inside the upper connecting pipe 4. The drive assembly 22 can generate power under the impact of sugar water and drive the arc plates 19 to rotate.

[0035] A steam heating sleeve 14 is fitted on the surface of the tank body 13, and several heating pipes 17 are installed inside the tank body 13. Both ends of the heating pipes 17 are connected to the cavity inside the steam heating sleeve 14 for containing high-temperature steam.

[0036] As an optional implementation, the top of the evaporator 2 is connected to a pipe 8, and the other end of the pipe 8 is connected to a negative pressure vacuum pump 9. The input end of the negative pressure vacuum pump 9 is connected to the condenser 10. The negative pressure vacuum pump 9 can increase the speed at which water vapor flows to the condenser 10.

[0037] An observation window 7 is provided on the evaporator 2, and the height of the observation window 7 is the same as the height of the upper connecting pipe 4. A sugar addition port is provided on the side of the evaporator 2.

[0038] Because the sugar water has a lower density at higher temperatures, it is located at the top. To improve the circulation speed and heating efficiency of the sugar water, the liquid level of the sugar water needs to be controlled at the same position as the upper connecting pipe 4. This way, as long as a temperature difference is formed, the sugar water can flow quickly. The sugar water with a lower temperature enters the heating tank 1 to continue to be heated. The liquid level of the sugar water can be clearly seen through the observation window 7.

[0039] A valve 6 is installed at the bottom of the heating tank 1. Opening the valve 6 allows the sugar water to be released.

[0040] The defoaming mechanism 18 includes a rotating shaft 21. There are two fixed plates 20 distributed vertically inside the evaporator tank 2, and the rotating shaft 21 is vertically rotatably arranged between the two fixed plates 20. Several arc-shaped plates 19 are fixed on the surface of the rotating shaft 21 along the radial direction of the rotating shaft 21.

[0041] The curved plate 19 defoams by rotating and impacting the foam. At the same time, the shape design of the curved plate 19 can collect the foam that is not directly broken and throw this part of the foam onto the inner wall of the evaporator 2 by centrifugal force. By impacting the inner wall of the evaporator 2, further defoaming is achieved.

[0042] The arc-shaped plate 19 is located above the upper connecting pipe 4 because the sugar water foam is mainly generated at the top of the liquid level, that is, above the upper connecting pipe 4.

[0043] The drive assembly 22 includes a second rotating shaft 23. Two fixing plates 25 are fixed inside the upper connecting pipe 4, and the second rotating shaft 23 is rotatably arranged between the two fixing plates 25 along the length of the upper connecting pipe 4. Several blades 26 are fixedly arranged on the surface of the second rotating shaft 23. The second rotating shaft 23 passes into the evaporator 2, and bevel gears 24 are fixed on the surfaces of the second rotating shaft 23 and the first rotating shaft 21, and the two bevel gears 24 mesh.

[0044] The flow of sugar water drives the paddle 26, causing the second shaft 23 to rotate. The second shaft 23, in conjunction with the two bevel gears 24, can drive the first shaft 21 and the arc plate 19 to rotate.

[0045] The fixing plate 25 is provided with a hollow groove, which can reduce the obstruction of the sugar water flow by the fixing plate 25.

[0046] With the above structure, high-temperature steam enters the steam heating sleeve 14 and the heating tube 17, increasing the temperature of the steam heating sleeve 14 and the heating tube 17. The surface of the evaporator 2 can be heated by the steam heating sleeve 14, and the sugar water inside the evaporator 2 can be heated directly by the heating tube 17, thereby improving the heating efficiency.

[0047] The circulation pump 3 can increase the flow rate of sugar water between the steam heating sleeve 14 and the evaporator 2. At the same time, the flowing sugar water drives the drive component 22, which in turn drives the arc plate 19 of the defoaming mechanism 18 to rotate. The arc plate 19 impacts the sugar water foam, breaking it up. Meanwhile, the fine foam adhering to the groove of the arc plate 19 can be thrown onto the inner wall of the evaporator 2 under the action of centrifugal force, further defoaming through impact.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A single-effect evaporator, characterized in that: It includes a heating tank (1), an evaporator (2) and a condenser (10). The evaporator (2) is connected to the condenser (10), and a storage tank (11) is provided at the bottom of the condenser (10). The storage tank (11) is connected to the condensate drain outlet of the condenser (10) through a connecting pipe (12). The heating tank (1) includes a tank body (13), and a circulation pump (3) is provided on the upper part of the tank body (13). The input end of the circulation pump (3) is connected to the tank body (13), and the output end of the circulation pump (3) is connected to the evaporator (2) through the upper connecting pipe (4). The bottom of the evaporator (2) is connected to the bottom of the tank body (13) through the lower connecting pipe (5). The evaporator (2) is provided with a defoaming mechanism (18), which includes several rotating arc plates (19). The upper connecting pipe (4) is provided with a driving component (22), which can generate power under the impact of sugar water and drive the arc plates (19) to rotate. The surface of the tank (13) is fitted with a steam heating sleeve (14), and a number of heating pipes (17) are installed inside the tank (13), and both ends of the heating pipes (17) are connected to the cavity inside the steam heating sleeve (14) for containing high-temperature steam.

2. The single-effect evaporator according to claim 1, characterized in that: The top of the evaporator (2) is connected to a pipe (8), and the other end of the pipe (8) is connected to a negative pressure vacuum pump (9), and the input end of the negative pressure vacuum pump (9) is connected to the condenser (10).

3. The single-effect evaporator according to claim 1, characterized in that: An observation window (7) is provided on the evaporator (2), and the height of the observation window (7) is the same as the height of the upper connecting pipe (4). A sugar addition port is provided on the side of the evaporator (2).

4. A single-effect evaporator according to claim 1, characterized in that: A valve (6) is provided at the bottom of the heating tank (1).

5. A single-effect evaporator according to claim 1, characterized in that: The defoaming mechanism (18) includes a rotating shaft (21). There are two fixed plates (20) distributed vertically inside the evaporator (2), and the rotating shaft (21) is vertically rotatably arranged between the two fixed plates (20). Several arc-shaped plates (19) are fixed on the surface of the rotating shaft (21) radially along the rotating shaft (21).

6. A single-effect evaporator according to claim 5, characterized in that: The arc-shaped plate (19) is located above the upper connecting pipe (4).

7. A single-effect evaporator according to claim 5, characterized in that: The drive assembly (22) includes a second rotating shaft (23). Two fixing plates (25) are fixed inside the upper connecting pipe (4), and the second rotating shaft (23) is rotatably arranged between the two fixing plates (25) along the length direction of the upper connecting pipe (4). Several blades (26) are fixedly arranged on the surface of the second rotating shaft (23). The second rotating shaft (23) passes into the evaporator (2), and bevel gears (24) are fixed on the surfaces of the second rotating shaft (23) and the first rotating shaft (21), and the two bevel gears (24) mesh.

8. A single-effect evaporator according to claim 7, characterized in that: The fixing plate 2 (25) is provided with a hollow groove.

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