Evaporation can with anti-entrainment device

Abstract

The application belongs to the technical field of industrial evaporation concentration process, in particular to an evaporation tank with an anti-entrainment device, comprising a tank body, a separator is arranged at the output end of the tank body, an air-liquid anti-entrainment device is arranged in the separator, a condenser is connected to the output end of the separator, a vacuum pump is connected to the output end of the condenser, and a water tank is connected to the output end of the vacuum pump; the problem of a large number of liquid droplets entrained in the flash evaporation in the low-temperature evaporation process is solved.

Description

Technical Field

[0001] This application belongs to the field of industrial evaporation and concentration technology, specifically an evaporator with an anti-entrainment device. Background Technology

[0002] In industrial evaporation and concentration processes, low-temperature flash evaporation is prone to generating a large number of entrained droplets. The entrained liquid will enter the vacuum pump, affecting the quality of the evaporated water and damaging the equipment. Therefore, the traditional evaporation and concentration process cannot solve this problem. Instead, a cooling system is added between the high-temperature material and the evaporation tank. However, this method wastes the heat of the high-temperature material and increases the overall cost of the equipment. Summary of the Invention

[0003] The purpose of this application is to address the shortcomings of existing technologies by designing an evaporator with an anti-entrainment device inside the separator, thereby solving the problem of a large number of liquid droplets being entrained during flash evaporation in the low-temperature evaporation process.

[0004] To achieve the above objectives, the following technical solution is adopted: An evaporator with an anti-entrapment device includes a tank body, a separator at the output end of the tank body, a gas-liquid anti-entrapment device inside the separator, a condenser at the output end of the separator, a vacuum pump at the output end of the condenser, and a water tank at the output end of the vacuum pump.

[0005] Preferably, the anti-entrapment device includes a spiral blade, the inlet end of the separator is horn-shaped, one end of the small opening of the horn-shaped part is connected to the output end of the tank body, and the spiral blade is disposed at one end of the small opening inside the horn-shaped part.

[0006] Preferably, a crossbar is fixed inside the horn-shaped part, the crossbar is perpendicular to the axis of the horn-shaped part, and the spiral blades are arranged between the two ends of the crossbar.

[0007] Preferably, the tank body is provided with a feed pipe at the inlet, and the end of the feed pipe away from the tank body is connected to the output end of the centrifugal pump.

[0008] Preferably, the separator is equipped with a temperature sensor and a pressure sensor, both of which are signal-connected to the centrifugal pump.

[0009] Preferably, the tank body is equipped with a stirring shaft.

[0010] Compared with the prior art, the beneficial effects of the technical solution of this application are: This application proposes an evaporator with a gas-liquid anti-entrainment device installed inside the separator, which solves the problem of a large number of liquid droplets being entrained during flash evaporation in the low-temperature evaporation process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a partial structural diagram illustrating the relationship between the helical blade and the horn shape in this application.

[0012] The components include: 1. Tank body; 2. Separator; 3. Gas-liquid anti-entrapment device; 4. Condenser; 5. Vacuum pump; 6. Water tank; 7. Spiral blade; 8. Horn type; 9. Crossbar; 10. Spiral blade; 11. Feed pump; 12. Centrifugal pump; 13. Temperature sensor; 14. Pressure sensor; 15. Stirring shaft. Detailed Implementation

[0013] like Figure 1-2 As shown, an evaporator with an anti-entrapment device includes a tank body 1. The output end of the tank body 1 is provided with a separator 2. The separator 2 is provided with a gas-liquid anti-entrapment device. The output end of the separator 2 is connected to a condenser 4. The output end of the condenser 4 is connected to a vacuum pump 5. The output end of the vacuum pump 5 is connected to a water tank 6.

[0014] In this embodiment, during use, the raw liquid enters the tank body 1 for evaporation. The resulting gas, under the action of the vacuum pump 5, passes through the separator 2 and the condenser 4. Under the action of the condenser 4, the gas turns into water and flows into the water tank 6. Because the amount of gas is relatively large during the low-temperature evaporation process, some liquid may be carried into the separator 2. However, because the separator 2 is equipped with a gas-liquid anti-entrapment device, the liquid is blocked inside the tank body 1, and the unevaporated liquid will not enter the tank body 1 under the action of the gas.

[0015] As a preferred embodiment, the anti-entrainment device includes a spiral blade 7, a funnel-shaped inlet 8 for the separator 2, and a small opening at one end of the funnel-shaped 8 connected to the outlet of the tank body 1. The spiral blade 7 is installed at the small opening inside the funnel-shaped 8. With this configuration, during evaporation, gas enters the funnel-shaped 8 from the tank body 1 and then enters the separator 2. The spiral blade 7 rotates automatically under the influence of the gas, preventing droplets from entering the separator 2. When entrained droplets come into contact with the spiral blade 7, the rotating blade generates centrifugal force, throwing the droplets against the inner wall of the small opening of the funnel-shaped 8 and causing them to flow back into the tank body 1. This is particularly suitable for situations with severe flash entrainment during the preheating stage. The upper end of the separator 2 is also equipped with a wire mesh, which acts as a demister and also serves to prevent entrainment.

[0016] As a preferred embodiment, a crossbar 9 is fixedly provided inside the horn-shaped section 8, the crossbar 9 being perpendicular to the axis of the horn-shaped section 8, and the helical blade 7 is disposed between the two ends of the crossbar 9. By providing the crossbar 9, it is convenient to install the helical blade 7 in the center of the small opening of the horn-shaped section 8.

[0017] As a preferred embodiment, a feed pipe 11 is provided at the inlet of the tank body 1, and the end of the feed pipe 11 away from the tank body 1 is connected to the output end of the centrifugal pump 12. In this way, after the feed pipe 11 is set, the raw liquid is transported into the tank body 1 for evaporation through the feed pipe 11, and the function of the centrifugal pump 12 is to pump the raw liquid into the tank body 1.

[0018] As a preferred embodiment, the separator 2 is equipped with a temperature sensor 13 and a pressure sensor 14. The temperature sensor 13 and the pressure sensor 14 are connected to a centrifugal pump 12, thereby controlling the amount of raw liquid entering the tank body 1 through the centrifugal pump 12, and thus controlling the amount of evaporated gas.

[0019] As a preferred embodiment, the tank body 1 is equipped with a stirring shaft 3. By setting the stirring shaft 3, the original liquid in the tank body 1 is stirred during the evaporation process, which is more conducive to evaporation.

[0020] As a preferred embodiment, a steam heating clamp 15 is provided on the outer surface of the tank body 1. The steam heating clamp 15 is connected to the steam heating pipe 10. When the tank body 1 needs to replenish heat, steam is supplied to the steam heating clamp 15 through the steam heating pipe 10 to heat the tank body 1, so as to replenish the heat when the heat of the tank body 1 is insufficient.

Claims

1. An evaporator with an anti-entrapment device, characterized in that, The tank includes a tank body (1), the output end of which is provided with a separator (2), the separator (2) is provided with a gas-liquid anti-entrapment device, the output end of the separator (2) is connected to a condenser (4), the output end of the condenser (4) is connected to a vacuum pump (5), and the output end of the vacuum pump (5) is connected to a water tank (6).

2. An evaporator with an anti-entrapment device according to claim 1, characterized in that, The anti-clamping device includes a spiral blade (7), a horn-shaped inlet end (8) of the separator (2), one end of the small opening of the horn-shaped (8) is connected to the output end of the tank body (1), and the spiral blade (7) is provided at one end of the small opening inside the horn-shaped (8).

3. An evaporator with an anti-entrapment device according to claim 2, characterized in that, A crossbar (9) is fixed inside the horn-shaped (8) and the crossbar (9) is perpendicular to the axis of the horn-shaped (8). The spiral blade (7) is arranged between the two ends of the crossbar (9).

4. An evaporator with an anti-entrapment device according to claim 1, characterized in that, The tank body (1) is provided with a feed pipe (11) at the inlet, and the end of the feed pipe (11) away from the tank body (1) is connected to the output end of the centrifugal pump (12).

5. An evaporator with an anti-entrapment device according to claim 4, characterized in that, The separator (2) is equipped with a temperature sensor (13) and a pressure sensor (14), both of which are connected to the centrifugal pump (12).

6. An evaporator with an anti-entrapment device according to any one of claims 1-5, characterized in that, The tank body (1) is equipped with a stirring shaft (3).

7. An evaporator with an anti-entrapment device according to claim 1, characterized in that, A steam heating clamp (15) is provided on the outer surface of the tank body 1, and the steam heating clamp (15) is connected to the steam heating pipe (10).

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