Tangential radial three-strand parallel flow feeding evaporation separation chamber

Abstract

A tangential radial three-strand parallel flow feeding evaporation separation chamber comprises a shell, a feeding device and a discharging device, the feeding device is located at the straight cylinder position of the evaporation separation chamber, and the discharging device is located at the lower conical shell position of the evaporation separation chamber. The feeding device comprises a connecting pipe, a horn pipe, a tie bar, a baffle and a flow guide partition plate, the flow guide partition plate divides fed materials into double tangential flow and radial flow, and the fed materials flow into the evaporation separation chamber; the discharging device comprises a connecting pipe, a rib plate and an arc-shaped baffle, and the arc-shaped baffle is located above the discharging port and prevents salt blocks from entering the discharging pipe.

Description

Technical Field

[0001] This utility model belongs to the field of energy and chemical equipment technology, and relates to a tangential radial three-stream parallel feed evaporation and separation chamber. Background Technology

[0002] In a tangentially fed evaporation separation chamber, the fluid moves in a vortex motion within the tank. The flow velocity is relatively high at the feed inlet, and the resulting centrifugal force exacerbates the uneven distribution of the solid phase within the evaporation chamber. The axial velocity distribution across the chamber's cross-section is also uneven, making it difficult to achieve uniform suspension of crystals in the boiling zone. Due to this uneven velocity distribution, the boiling zone exhibits high supersaturation, accelerating agglomeration on the inner wall at lower flow velocities and introducing vortex losses, thus increasing the energy consumption of the circulating pump. If vortices enter the circulating pump, cavitation occurs, reducing pump efficiency and causing pump vibration.

[0003] Due to the high instantaneous evaporation intensity, the evaporation in the pure radial feed evaporation separation chamber is intense. As a result, a large amount of salt is easily deposited around the outlet of the feed device and on the inner wall of the evaporation separation chamber, leading to a high frequency of pipe blockage and a short tank cleaning cycle.

[0004] The use of evaporation separation chambers with pure tangential feeding and pure radial feeding in the existing technology has drawbacks to varying degrees, thus both feeding devices have significant limitations. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a tangentially radially three-stream parallel-flow evaporation separation chamber. This overcomes the disadvantages of pure tangential feeding, reducing short-circuit heat loss, improving solid phase segregation within the evaporation chamber, and reducing the power consumption of the circulating pump. It also overcomes the disadvantages of pure radial feeding, reducing salt deposition around the outlet of the feeding device and on the inner wall of the evaporation separation chamber, avoiding uneven flow velocity distribution, reducing the flow velocity of the circulating liquid within the tank, minimizing heat short-circuit loss, providing a more stable environment for crystal nucleus growth, and ensuring an extended evaporation separation tank cleaning cycle.

[0006] The technical solution of this utility model is as follows:

[0007] A tangentially radially three-stream co-flow evaporation separation chamber includes a shell, a feeding device, and a discharging device. The feeding device is located in the straight section of the evaporation separation chamber, and the discharging device is located in the lower conical shell section of the evaporation separation chamber. The feeding device includes a connecting pipe, a bell-shaped tube, a tie rod, a baffle, and a flow guide plate. The flow guide plate divides the feed into two tangential and three radial streams that flow into the evaporation separation chamber. The baffle is located above the outlet of the bell-shaped tube, and the flow guide plate is welded to the connecting pipe and the bell-shaped tube. The discharging device includes a connecting pipe, an arc-shaped baffle of the tie rod, and the arc-shaped baffle is located above the outlet to prevent salt blocks from entering the outlet pipe.

[0008] The beneficial effects of this invention are as follows: The scheme of setting up a tangentially radially three-stream parallel-flow evaporation separation chamber addresses the issue of reduced vortex intensity in the tangentially fed evaporation separation chamber, avoiding the problem of uneven velocity distribution in pure tangential feed, reducing the flow velocity of the circulating liquid inside the tank, minimizing thermal short-circuit losses, and providing a more stable environment for crystal nucleus growth. Due to the dual tangentially radially three-stream parallel-flow feeding method, the feeding form has a powerful counter-current design, resulting in a relatively slow flow velocity in the fluid field inside the tank; eliminating the vortex state inside the tank, and ensuring a relatively stable liquid phase movement state. In terms of the structure of the evaporation separation chamber, it reduces the adhesion site of crystal nuclei, which has a certain beneficial effect on extending the production cycle of the evaporation crystallization system. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of a utility model of a radially parallel three-stream feed evaporation and separation chamber.

[0010] Figure 2 This is a top view of a utility model's radially parallel three-flow feed evaporation and separation chamber.

[0011] Figure 3 This is a cross-sectional view of the feeding device for a tangential radial three-stream parallel feed evaporation separation chamber.

[0012] Figure 4 This is a top view of the feeding device for a tangential radial three-stream parallel feed evaporation separation chamber.

[0013] Figure 5 This is a view from direction A of the feeding device for a tangential radial three-stream parallel-flow feeding evaporation separation chamber.

[0014] Figure 6 This is a cross-sectional view of the discharge device of a utility model of a radially tangentially three-stream parallel-flow feeding evaporation separation chamber.

[0015] Figure 7 This is a B-direction view of the discharge device of the tangential radial three-stream parallel feed evaporation separation chamber of the utility model.

[0016] In the diagram: 1. Shell; 2. Feeding device; 3. Discharge device; 1-1. Bottom ring plate; 2-1. Connecting pipe; 2-2. Horn tube; 2-3. Tie rod; 2-4. Baffle; 2-5. Flow guide plate; 3-1. Connecting pipe; 3-2. Rib plate; 3-3. Arc-shaped baffle. Detailed Implementation

[0017] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0018] Figure 1 and Figure 2As shown: a radially parallel-flow evaporation separation chamber includes a shell 1, a feeding device 2 and a discharging device 3. The feeding device is located in the straight section of the evaporation separation chamber, and the discharging device is located in the lower conical shell section of the evaporation separation chamber.

[0019] like Figure 3 , Figure 4 and Figure 5 As shown: The feeding device includes a connecting pipe 2-1, a horn tube 2-2, a tie rod 2-3, a baffle 2-4, and a flow guide baffle 2-5. The flow guide baffle divides the horn tube into three chambers, resulting in three flow directions: double tangential and radial, which flow into the evaporation separation chamber. The baffle is supported by a tie rod and is located above the outlet of the horn tube. The flow guide baffle is welded to the connecting pipe and the horn tube.

[0020] like Figure 6 and Figure 7 As shown: The discharge device includes a connecting pipe 3-1, a stiffening plate 3-2, and an arc-shaped baffle 3-3. The arc-shaped baffle is supported by the stiffening plate by welding and is located above the discharge port of the connecting pipe to prevent salt blocks from entering the discharge pipe.

Claims

1. A tangentially radially three-stream parallel-flow feed evaporation and separation chamber, characterized in that: The device comprises three parts: a shell, a feeding device, and a discharging device. The feeding device is located in the straight section of the evaporation separation chamber, and the discharging device is located in the lower conical shell section of the evaporation separation chamber. The feeding device includes a connecting pipe, a bell-shaped tube, a tie rod, a baffle, and a flow guide plate. The flow guide plate divides the feed into three streams: two tangential and radial, which flow into the evaporation separation chamber. The baffle is located above the outlet of the bell-shaped tube, and the flow guide plate is welded to the connecting pipe and the bell-shaped tube. The discharging device includes a connecting pipe, a tie rod, and an arc-shaped baffle. The arc-shaped baffle is located above the discharge port to prevent salt blocks from entering the discharge pipe.

Images