Circulation evaporator and evaporation circulation device

Abstract

The utility model discloses an evaporation circulating device which comprises a circulating device body. The distributor is arranged at the top of the circulating device body; the power shaft is rotationally connected to the interior of the distributor; the helical tooth a is arranged at one end of the power shaft, and the rotating axis of the helical tooth a is the same as that of the power shaft; the helical tooth a is arranged in the distributor, the helical tooth b is arranged in the distributor, and the helical tooth a is connected with the helical tooth b; the impeller is located at the bottom end of the distributor, and the impeller is connected with the helical teeth b. Through the arrangement of the distributor and the impeller, the helical teeth a can be driven to rotate through the rotation of the power shaft when feed liquid circulates, so that the impeller connected with the helical teeth b rotates at the bottom of the distributor, and the fallen feed liquid is scattered and distributed more uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a circulation evaporator and an evaporation circulation device. Background Art

[0002] The circulating evaporator is a system where the solution continuously circulates in the evaporator to improve the heat transfer effect and alleviate the scaling of the solution. Due to different causes of the circulating motion, it can be divided into two types: natural circulation and forced circulation. The former is caused by the different degrees of heat received by the solution at different positions in the heating chamber, resulting in a density difference, while the latter relies on external power to force the solution to circulate in one direction. There are several falling film channels in the evaporator. The feed liquid enters the circulation pipe from the feed inlet, and then is transported to the evaporator by the circulating pump and enters different falling film channels through the film distributor for falling film evaporation. The reciprocating cycle is repeated until the qualified feed liquid is obtained and then sent out from the discharge port.

[0003] During the circulation evaporation process, the circulating liquid may fall directly from the center of the falling film channel and fail to form a liquid film inside it, thus affecting the heating efficiency. In addition, the liquid cannot be evenly distributed in several falling film channels, affecting the overall circulation effect. Utility Model Content

[0004] The purpose of the utility model is to provide a circulation evaporator and an evaporation circulation device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an evaporation circulation device, comprising a circulation device body and a distributor:

[0006] The distributor is arranged at the top of the circulation device body, and the distributor includes a power shaft rotatably arranged inside the distributor, a bevel tooth a arranged at one end of the power shaft, a bevel tooth b rotatably arranged inside the distributor, and an impeller rotatably arranged at the bottom end of the distributor, the impeller is connected to the bevel tooth b, and the power shaft drives the bevel tooth b meshing with the bevel tooth a to rotate so as to drive the impeller to rotate along with the rotation of the bevel tooth b.

[0007] Preferably, a feed port is provided on one side of the bottom end of the circulation device body, a discharge port is provided on the other side of the bottom end of the circulation device body, and a connection port a is also provided on the bottom end of the circulation device body.

[0008] By adopting the above technical solution, the liquid to be cyclically evaporated can enter from the feed inlet and be discharged from the discharge port after the cyclic evaporation is completed.

[0009] Preferably, a circulation pump is installed on one side of the circulation device body, and the output end of the circulation pump extends into the interior of the circulation device body.

[0010] By adopting the above technical solution, the circulation pump can be operated to drive the flow of the liquid inside the circulation device body, thereby completing the circulation operation.

[0011] Preferably, a connection port b is provided at the top of the circulation device body, and square openings are provided around the connection port b and lead to the inside of the circulation device body. The bottom end of the connection port b is a distributor, and the top end of the distributor is conical.

[0012] By adopting the above technical solution, the liquid material flowing out from the connection port b can be preliminarily divided through the opening and the conical shape at the top of the distributor.

[0013] Preferably, a motor is installed on one side of the distributor, the output end of the motor is connected to the rotation center of the power shaft, and the helical teeth a are meshed and connected with the helical teeth b.

[0014] By adopting the above technical solution, the power shaft can be driven to rotate by the motor, thereby driving the helical tooth a to rotate, so that the helical tooth b can rotate inside the distributor.

[0015] Preferably, the impeller is rotatably connected to the distributor, and inclined blades are arranged around the impeller.

[0016] By adopting the above technical solution, the impeller can rotate at the bottom of the distributor to break up the falling liquid material and make it more evenly distributed.

[0017] A circulation evaporator, comprising the evaporation circulation device as described in any one of the above, and the circulation evaporator further comprises:

[0018] Evaporator body;

[0019] A connection port c, which is arranged at the bottom end of the evaporator body and is connected to the circulation device body through the connection port a;

[0020] Falling film channel, the evaporator body is provided with a heating zone inside, and a plurality of falling film channels are provided in the heating zone;

[0021] A steam inlet, which is arranged on the side of the evaporator body and is connected to a heating area arranged inside the evaporator body;

[0022] A condensed water outlet, the condensed water outlet is arranged on the side of the evaporator body, and the condensed water outlet is connected to a heating area arranged inside the evaporator body;

[0023] A flow splitter top is arranged at the top of the falling film channel.

[0024] By adopting the above technical solution, steam can enter the interior of the evaporator body from the steam inlet, thereby increasing the temperature of the falling film channel set inside the evaporator body, thereby completing the heating operation of the feed liquid passing through the falling film channel.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] 1. By providing a distributor and an impeller, when the liquid is circulated, the rotation of the power shaft can drive the helical tooth a to rotate, so that the impeller connected to the helical tooth b rotates at the bottom of the distributor to break up the falling liquid and make it more evenly distributed;

[0027] 2. The diverter top can prevent the liquid from directly entering the interior of the falling film channel, so that the liquid enters the interior of the falling film channel through the gap between the diverter top and the falling film channel, which helps the liquid to form a liquid film on the inner wall of the falling film channel, thereby completing the cyclic evaporation operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of this application;

[0029] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this application;

[0030] Figure 3 For this application Figure 2 The enlarged structural diagram at A in the middle;

[0031] Figure 4 This is a schematic diagram of the cross-sectional structure of the distributor of this application;

[0032] Figure 5 This is a schematic diagram of the diversion top structure of this application.

[0033] In the figure: 1. Evaporator body; 2. Circulation device body; 3. Feed inlet; 4. Discharge port; 5. Connection port a; 6. Connection port b; 7. Distributor; 8. Power shaft; 9. Motor; 10. Bevel gear a; 11. Bevel gear b; 12. Impeller; 13. Connection port c; 14. Falling film channel; 15. Steam inlet; 16. Condensate outlet; 17. Diverter top; 18. Circulation pump. DETAILED DESCRIPTION

[0034] 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 those skilled in the art without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a technical solution: an evaporation circulation device, comprising: a circulation device body 2, a feed port 3 is arranged on one side of the bottom end of the circulation device body 2, a discharge port 4 is arranged on the other side of the bottom end of the circulation device body 2, and a connection port a5 is also arranged at the bottom end of the circulation device body 2, so that the feed liquid to be circulated and evaporated can enter from the feed port 3 and be discharged from the discharge port 4 after the cyclic evaporation is completed. The circulation device body 2 is connected to the connection port c13 arranged at the bottom of the evaporator body 1 through the connection port a5, so as to connect the circulation device body 2 with the inside of the evaporator body 1, and the top of the circulation device body 2 is provided with a connection port c13 arranged at the bottom of the evaporator body 1. Interface b6, connection port b6 extends from the top of the evaporator body 1 into the interior thereof, and is surrounded by square openings leading to the interior of the circulation device body 2. The bottom end of connection port b6 is a distributor 7, and the top of distributor 7 is conical, so that the liquid flowing out of connection port b6 can be preliminarily diverted through the opening and the conical shape of the top of distributor 7. A circulation pump 18 is installed on one side of the circulation device body 2, and the output end of circulation pump 18 extends to the interior of circulation device body 2. The operation of circulation pump 18 can drive the liquid inside the circulation device body 2 to flow, thereby completing the circulation operation.

[0036] See also Figure 3 and Figure 4 A distributor 7 is arranged on the top of the circulation device body 2. The distributor 7 is located inside the top of the evaporator body 1. A power shaft 8 is arranged inside the distributor 7. The power shaft 8 is horizontally inserted through the distributor 7 and is rotatably connected thereto. A helical gear a10 is arranged at one end of the power shaft 8. The helical gear a10 has the same rotation axis as the power shaft 8. A motor 9 is installed on one side of the distributor 7. The output end of the motor 9 is connected to the rotation center of the power shaft 8. The helical gear a10 is meshed with the helical gear b11. The rotation of the power shaft 8 can be driven by the motor 9, thereby driving the helical gear a10 to rotate, so that The helical teeth b11 can rotate inside the distributor 7, the impeller 12 is located at the bottom end of the distributor 7, a rotation groove is opened at the center of the impeller 12, the bottom end of the distributor 7 is embedded in the rotation groove and is rotationally connected to the impeller 12, the helical teeth b11 located inside the distributor 7 pass through the bottom of the distributor 7 and are connected to the impeller 12, the rotation axis of the impeller 12 is the same as the helical teeth b11, the impeller 12 is rotationally connected to the distributor 7, and the impeller 12 is provided with inclined blades around it. The impeller 12 can rotate at the bottom of the distributor 7 to break up the fallen liquid and make it more evenly distributed.

[0037] See also Figure 2 , Figure 3 and Figure 5A steam inlet 15 is provided on the side of the evaporator body 1, and the steam inlet 15 is connected to the heating zone provided inside the evaporator body 1. A condensate outlet 16 is provided below the steam inlet 15, and the condensate outlet 16 is provided on the side of the evaporator body 1. The condensate outlet 16 is connected to the heating zone provided inside the evaporator body 1. A heating zone is provided inside the evaporator body 1, and a plurality of falling film channels 14 are provided in the heating zone, so that steam enters the interior of the evaporator body 1 from the steam inlet 15, thereby increasing the temperature of the falling film channel 14 provided inside the evaporator body 1, thereby completing the heating operation for the material passing through the falling film channel 14. A diverter top 17 is provided at the top of each falling film channel 14, and the diverter top 17 is provided at the top of the falling film channel 14. The top of the diverter top 17 is conical, which can prevent the liquid from flowing directly from the center of the falling film channel 14, and enable the liquid medium to enter the interior of the falling film channel 14 through the gap between the diverter top 17 and the falling film channel 14, which is helpful for the liquid to form a liquid film on the inner wall of the falling film channel 14.

[0038] Working principle: First, when the liquid is circulated, the circulating liquid can be allowed to flow out from the connecting port b6 through the opening and the conical shape of the top of the distributor 7 for preliminary diversion, and then the motor 9 drives the power shaft 8 to rotate, thereby driving the bevel gear a10 to rotate, so that the bevel gear b11 can rotate inside the distributor 7, and the impeller 12 connected to the bevel gear b11 rotates at the bottom of the distributor 7, breaking up the liquid falling along the distributor 7 to make it more evenly distributed, and then the liquid enters the interior of the falling film channel 14 through the gap between the diversion top 17 and the falling film channel 14, which helps the liquid to form a liquid film on the inner wall of the falling film channel 14, thereby completing the operation of circulating evaporation.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An evaporation cycle device, characterized in that: include: Circulation device body (2); A distributor (7), wherein the distributor (7) is arranged at the top of the circulation device body (2), and the distributor (7) comprises a power shaft (8) rotatably arranged inside the distributor (7), a helical tooth a (10) arranged at one end of the power shaft (8), a helical tooth b (11) rotatably arranged inside the distributor (7), and an impeller (12) rotatably arranged at the bottom end of the distributor (7), wherein the impeller (12) is connected to the helical tooth b (11), and the power shaft (8) drives the helical tooth b911 meshing with the helical tooth a (10) to rotate so as to drive the impeller (12) to rotate along with the rotation of the helical tooth b (11).

2. An evaporation cycle device according to claim 1, characterized in that: A feed port (3) is provided on one side of the bottom end of the circulation device body (2), a discharge port (4) is provided on the other side of the bottom end of the circulation device body (2), and a connection port a (5) for connecting to an evaporator is also provided on the bottom end of the circulation device body (2).

3. An evaporation cycle device according to claim 2, characterized in that: A circulation pump (18) is installed on one side of the circulation device body (2), and the output end of the circulation pump (18) extends into the interior of the circulation device body (2).

4. An evaporation cycle device according to claim 1, characterized in that: The top of the circulation device body (2) is provided with a connection port b (6), and the connection port b (6) is surrounded by square openings leading to the inside of the circulation device body (2). The bottom of the connection port b (6) is provided with a distributor (7), and the top of the distributor (7) is conical.

5. The evaporation cycle device according to claim 1, characterized in that: A motor (9) is installed on one side of the distributor (7), and the output end of the motor (9) is connected to the rotation center of the power shaft (8) to drive the bevel gear a (10) to rotate.

6. An evaporation cycle device according to claim 1, characterized in that: The impeller (12) is rotatably connected to the distributor (7), and inclined blades are arranged around the impeller (12).

7. A circulating evaporator, characterized in that: The evaporation cycle device according to any one of claims 1 to 6, wherein the circulation evaporator further comprises: Evaporator body (1); A connection port c (13), the connection port c (13) being arranged at the bottom end of the evaporator body (1), the connection port c (13) being connected to the circulation device body (2) via the connection port a (5); Falling film channels (14), wherein a heating zone is arranged inside the evaporator body (1), and a plurality of falling film channels (14) are arranged in the heating zone; a steam inlet (15), the steam inlet (15) being arranged on a side of the evaporator body (1), the steam inlet (15) being connected to a heating area arranged inside the evaporator body (1); A condensed water outlet (16), the condensed water outlet (16) being arranged on a side of the evaporator body (1), the condensed water outlet (16) being connected to a heating area arranged inside the evaporator body (1); A flow splitter top (17), wherein the flow splitter top (17) is arranged at the top end of the falling film channel (14).

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