Glycerol flash tank
By installing a sleeve and extension tube in the flash tank and utilizing the overflow and arc-shaped baffle design, the problem of removing impurities from glycerin was solved, achieving high-purity discharge of dehydrated glycerin and reducing subsequent processing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG SAFE MACHINERY EQUIP
- Filing Date
- 2025-07-01
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing flash evaporation tanks used in glycerin production, impurities in the glycerin are difficult to remove effectively during the dehydration process, resulting in high subsequent processing costs.
A sleeve and extension pipe are installed on the lower end of the flash tank to discharge dehydrated glycerin by overflow. Combined with the design of arc baffle and demister, impurities are prevented from entering the discharge port, thus improving the cleanliness of the glycerin.
The overflow and arc-shaped baffle design effectively prevents impurities in glycerin from being discharged, significantly improving the cleanliness of dehydrated glycerin and reducing subsequent processing costs.
Smart Images
Figure CN224252118U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flash evaporator technology, specifically a glycerol flash evaporator. Background Technology
[0002] Flash evaporation dehydration of glycerol is a highly efficient and energy-saving separation technology. Its core principle is to use a sudden pressure drop to instantly vaporize liquid water, thereby achieving rapid separation of glycerol and water. This is specifically achieved using a flash evaporator.
[0003] Currently, flash tanks used in glycerin production typically have a discharge port directly at the bottom, from which dehydrated glycerin is discharged. However, glycerin generally contains impurities, which require subsequent filtration if not treated, thus increasing the production cost of glycerin. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content
[0004] The purpose of this invention is to provide a glycerol flash evaporator to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a glycerol flash evaporator, comprising a tank body, a lower end cap, an upper end cap, and a sleeve. The lower end cap is provided at the bottom of the tank body, and the upper end cap is provided at the top of the tank body. The upper end cap is provided with a lifting seat, and the lifting seat is connected to a steam outlet. A material inlet is provided on one side of the tank body. A discharge port is provided at the center of the lower end cap, and an extension pipe is provided above the discharge port. A sleeve is coaxially provided on the upper surface of the lower end cap. The horizontal height of the top of the sleeve is greater than the horizontal height of the top of the extension pipe. Several through grooves are provided at the bottom of the sleeve. A connecting plate is provided on one side of the top of the sleeve, and an arc-shaped baffle is provided at the top of the connecting plate. The arc-shaped baffle is located directly above the sleeve. The lower end cap is also provided with a slag discharge port.
[0006] Preferably, the glycerol flash evaporator provided by this utility model has a plurality of support legs connected to the lower end cap.
[0007] Preferably, the glycerol flash evaporator provided by this utility model has a viewing window on one side of the tank body.
[0008] Preferably, the glycerol flash evaporator provided by this utility model has a temperature sensor mounting component installed on one side of the tank body.
[0009] Preferably, in the glycerol flash evaporator provided by this utility model, a demister is installed inside the raised seat via a bracket.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] A sleeve is installed inside the tank and on the upper surface of the lower head. An extension pipe is installed at the top of the discharge port. The extension pipe is located inside the sleeve, and the horizontal height of the top of the sleeve is greater than the horizontal height of the top of the extension pipe. The dehydrated glycerin will not be discharged directly from the discharge port, but will be discharged from the extension pipe by overflow. This can prevent impurities in the glycerin from being discharged together, thereby greatly improving the cleanliness of the dehydrated glycerin. An arc-shaped baffle is installed at the top of the sleeve through a connecting plate to prevent the glycerin trapped on the demister from dripping directly into the extension pipe, further ensuring the cleanliness of the dehydrated glycerin. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 For the appendix Figure 1 Enlarged structural diagram of point A in the middle.
[0014] In the diagram: 1. Tank body; 2. Lower head; 3. Upper head; 4. Sleeve; 5. Elevating seat; 6. Steam outlet; 7. Material inlet; 8. Discharge port; 9. Extension pipe; 10. Through groove; 11. Connecting plate; 12. Arc-shaped baffle; 13. Slag discharge port; 14. Support leg; 15. Viewing window; 16. Temperature sensor mounting component; 17. Demister. Detailed Implementation
[0015] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0017] Please see Figure 1-2This utility model provides a technical solution: a glycerol flash evaporator, including a tank body 1, a lower end cap 2, an upper end cap 3, and a sleeve 4. The lower end cap 2 is provided at the bottom of the tank body 1, and the upper end cap 3 is provided at the top of the tank body 1. The upper end cap 3 is provided with a lifting seat 5, which is connected to a steam outlet 6. A demister 17 is provided inside the lifting seat 5 through a bracket to break foam and reduce the entrainment of glycerol in the steam. A material inlet 7 is provided on one side of the tank body 1, and a discharge port 8 is provided at the center of the lower end cap 2. An extension pipe 9 is provided above the discharge port 8. The sleeve 4 is coaxially provided on the upper surface of the lower end cap 2, and the horizontal height of the top of the sleeve 4 is large. At the horizontal height of the top of the extension tube 9, the bottom of the sleeve 4 is provided with several through grooves 10. A connecting plate 11 is provided on one side of the top of the sleeve 4. An arc-shaped baffle 12 is provided on the top of the connecting plate 11. The arc-shaped baffle 12 is located directly above the sleeve 4. The lower end cap 2 is also provided with a slag discharge port 13. The lower end cap 2 is connected to several support legs 14. The support legs 14 are used to raise and fix the whole. A viewing window 15 is provided on one side of the tank body 1 to facilitate viewing the working status inside the tank body 1. A temperature sensor mounting part 16 is also provided on one side of the tank body 1 to realize the installation of the temperature sensor, thereby realizing the monitoring of the temperature inside the flash tank.
[0018] Installation method and operating principle: First, weld the bottom of the sleeve 4 coaxially with the lower end cap 2. Then, weld the connecting plate 11 with the arc-shaped baffle 12 to the top of the sleeve 4. Weld the lower end cap 2 to the bottom of the tank body 1. Next, insert the extension pipe 9 of the outlet 8 into the sleeve 4 and connect it to the lower end cap 2 through the cooperation of the flange and sealing parts. At this time, the horizontal height of the top of the extension pipe 9 is lower than the horizontal height of the top of the sleeve 4. Weld the upper end cap 3 to the top of the tank body 1. Place the bracket connected to the demister 17 into the lifting seat 5. Then, connect the steam outlet 6 to the lifting seat 5 through the flange. The upper part of the bracket is clamped between the flange of the steam outlet 6 and the lifting seat 5 to complete the installation. During use, high-temperature crude glycerin (with a water content of approximately 8%) enters the tank 1 through the material inlet 7 via a pressure reducing valve. The sudden pressure drop causes the boiling point of water to decrease, and the liquid water instantly vaporizes due to its temperature being higher than the boiling point under the new pressure. The flash vapor passes through the demister 17 and exits from the steam outlet 6 at the top of the tank 1. After condensation and recovery or reuse, the dehydrated glycerin flows to the bottom of the tank 1, where the water content can be reduced to 0.2%-0.5%. The dehydrated glycerin enters the sleeve 4 through the through groove 10 at the bottom of the sleeve 4 until the liquid level reaches the opening of the extension pipe 9. The dehydrated glycerin overflows into the extension pipe 9 and is discharged from the outlet 8. During the process, impurities in the glycerin remain in the tank 1. After a period of use, these impurities can be cleaned from the slag discharge port 13. This utility model has a reasonable structure. A sleeve 4 is provided inside the tank body 1 and on the upper surface of the lower end cap 2. An extension pipe 9 is provided at the top of the discharge port 8. The extension pipe 9 is located inside the sleeve 4, and the horizontal height of the top of the sleeve 4 is greater than the horizontal height of the top of the extension pipe 9. The dehydrated glycerin will not be discharged directly from the discharge port 8, but will be discharged from the extension pipe 9 by overflow. This can prevent impurities in the glycerin from being discharged together, thereby greatly improving the cleanliness of the dehydrated glycerin. An arc-shaped baffle 12 is provided at the top of the sleeve 4 through the connecting plate 11, which can prevent the glycerin trapped on the demister 17 from dripping directly into the extension pipe 9, further ensuring the cleanliness of the dehydrated glycerin.
[0019] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.
[0020] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A glycerol flash evaporator, characterized in that: The tank includes a tank body (1), a lower end cap (2), an upper end cap (3), and a sleeve (4). The tank body (1) has a lower end cap (2) at its bottom and an upper end cap (3) at its top. The upper end cap (3) has a raised seat (5) connected to a steam outlet (6). The tank body (1) has a material inlet (7) on one side. The lower end cap (2) has a discharge port (8) at its center, and an extension pipe is installed above the discharge port (8). 9) A sleeve (4) is coaxially arranged on the upper surface of the lower end cap (2). The horizontal height of the top end of the sleeve (4) is greater than the horizontal height of the top end of the extension tube (9). Several through grooves (10) are opened at the bottom of the sleeve (4). A connecting plate (11) is arranged on one side of the top end of the sleeve (4). An arc-shaped baffle (12) is arranged at the top end of the connecting plate (11). The arc-shaped baffle (12) is arranged directly above the sleeve (4). The lower end cap (2) is also provided with a slag discharge port (13).
2. The glycerol flash evaporator according to claim 1, characterized in that: The lower end cap (2) is connected to several support legs (14).
3. A glycerol flash evaporator according to claim 1, characterized in that: A viewing window (15) is provided on one side of the tank (1).
4. A glycerol flash evaporator according to claim 1, characterized in that: A temperature sensor mounting component (16) is also provided on one side of the tank (1).
5. A glycerol flash evaporator according to claim 1, characterized in that: The raised seat (5) is equipped with a demister (17) inside via a bracket.