Single-effect evaporator for concentration and crystallization
By wrapping the steam guide pipe with an electric heating tape and using a wire mesh demister, the problems of steam condensation and droplets were solved, thus improving the processing quality of the single-effect evaporator.
Patent Information
- Application Number
- CN202520418701.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The existing single-effect evaporator suffers from the problem of steam condensing and carrying liquid droplets in the guide tube, which affects the processing quality.
An electric heating tape is wrapped around the steam guide pipe, and a wire mesh demister is used to remove droplets and prevent liquid from entering the condenser.
It effectively maintains steam temperature, prevents condensation, improves treatment quality, removes droplets, and enhances treatment results.
Smart Images
Figure CN223969521U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of single-effect evaporator technology, specifically a single-effect evaporator for concentration and crystallization. Background Technology
[0002] A single-effect evaporator for concentration and crystallization is an evaporation device that uses a heater to heat and evaporate a liquid, then condenses the vapor back into liquid using a condenser, thus achieving concentration and extraction. In the single-effect evaporation process, the secondary steam generated is not reused but directly condensed and discharged. This type of evaporator is typically used for processing materials in small volumes or with low yields, for evaporation concentration and evaporation crystallization.
[0003] In existing technology, a steam guide pipe is connected between the evaporation chamber and the condensation chamber for transporting steam. However, this method has the following disadvantages:
[0004] 1. As steam is transported in the steam guide pipe, its temperature gradually decreases, making it easier for condensation to occur inside the steam guide pipe;
[0005] 2. Steam can easily carry liquid droplets after it is discharged from the evaporation chamber, which reduces the quality of the treatment.
[0006] Therefore, we propose a single-effect evaporator for concentration and crystallization. Utility Model Content
[0007] (a) Technical problems to be solved
[0008] To address the shortcomings of existing technologies, this invention provides a single-effect evaporator for concentration and crystallization. It features an electric heating tape wrapped around the steam guide pipe to maintain the steam temperature inside the pipe, prevent condensation, remove liquid droplets from the steam, and prevent liquid from entering the condenser. These advantages effectively solve the problems in the prior art.
[0009] (II) Technical Solution
[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a single-effect evaporator for concentration and crystallization, comprising a heating chamber, an evaporation chamber disposed on one side of the heating chamber, a condensation chamber disposed on one side of the evaporation chamber, a steam guide pipe fixedly connected between the upper outer surface of the evaporation chamber and the upper outer surface of the condensation chamber, a temperature sensor installed in the middle of the steam guide pipe, and a liquid removal structure installed at the end of the steam guide pipe near the evaporation chamber, the steam guide pipe comprising an inner pipe, a middle pipe, an electric heating tape, heat insulation filling cotton and an outer pipe, and the liquid removal structure comprising an upper cylinder, a guide bucket and a wire mesh demister, the guide bucket being fixedly installed on the lower outer surface of the upper cylinder.
[0011] Preferably, the wire mesh demister is fixedly installed inside the upper cylinder.
[0012] Preferably, the electric heating tape is wrapped around the outer wall of the inner tube.
[0013] Preferably, the intermediate tube is installed outside the inner tube, and the electric heating tape is located between the inner wall of the intermediate tube and the outer wall of the inner tube.
[0014] Preferably, the outer tube is located outside the middle tube, and the thermal insulation filling cotton is filled between the outer wall of the middle tube and the inner wall of the outer tube.
[0015] Preferably, the thermal insulation filling cotton is made of rock wool.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a single-effect evaporator for concentration and crystallization, which has the following beneficial effects:
[0018] 1. This single-effect evaporator for concentration and crystallization uses a steam guide pipe with an electric heating tape wrapped around the outer wall of the inner pipe to maintain the steam temperature inside the pipe and prevent condensation.
[0019] 2. This single-effect evaporator for concentration and crystallization removes liquid droplets from the steam through a wire mesh demister, preventing liquid from entering the condenser. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a single-effect evaporator for concentration and crystallization according to the present invention.
[0021] Figure 2 This utility model relates to a single-effect evaporator for concentration and crystallization. Figure 1 Enlarged view of a local structure.
[0022] Figure 3 This is a schematic diagram of the liquid removal structure in a single-effect evaporator for concentration and crystallization according to this utility model.
[0023] Figure 4 This is a side cross-sectional view of the steam guide pipe in a single-effect evaporator for concentration and crystallization according to this utility model.
[0024] In the diagram: 1. Heating chamber; 2. Evaporation chamber; 3. Condensation chamber; 4. Steam guide pipe; 5. Temperature sensor; 6. Liquid removal structure; 7. Upper cylinder; 8. Guide hopper; 9. Wire mesh demister; 10. Inner tube; 11. Intermediate tube; 12. Electric heating tape; 13. Thermal insulation filling cotton; 14. Outer tube. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] This embodiment is a single-effect evaporator for concentration and crystallization.
[0027] like Figure 1-4 As shown, it includes a heating chamber 1, an evaporation chamber 2 is provided on one side of the heating chamber 1, and a condensation chamber 3 is provided on one side of the evaporation chamber 2. A steam guide pipe 4 is fixedly connected between the upper outer surface of the evaporation chamber 2 and the upper outer surface of the condensation chamber 3. A temperature sensor 5 is installed in the middle of the steam guide pipe 4. A liquid removal structure 6 is installed at the end of the steam guide pipe 4 near the evaporation chamber 2. The steam guide pipe 4 includes an inner pipe 10, a middle pipe 11, an electric heating tape 12, a heat insulation filling cotton 13, and an outer pipe 14. The liquid removal structure 6 includes an upper cylinder 7, a guide bucket 8, and a wire mesh demister 9. The guide bucket 8 is fixedly installed on the lower outer surface of the upper cylinder 7.
[0028] The wire mesh demister 9 is fixedly installed inside the upper cylinder 7; the electric heating tape 12 is wrapped around the outer wall of the inner tube 10; the intermediate tube 11 is installed outside the inner tube 10, and the electric heating tape 12 is located between the inner wall of the intermediate tube 11 and the outer wall of the inner tube 10; the outer tube 14 is located outside the intermediate tube 11, and the thermal insulation filling cotton 13 is filled between the outer wall of the intermediate tube 11 and the inner wall of the outer tube 14; the thermal insulation filling cotton 13 is made of rock wool.
[0029] It should be noted that this utility model is a single-effect evaporator for concentration and crystallization. The heating chamber 1, evaporation chamber 2 and condensation chamber 3 described in this article are all existing technologies and can be effectively known to those skilled in the art. Specific details will not be elaborated further. The steam guide pipe 4 guides the steam inside the inner tube 10. The insulation filling cotton 13, made of rock wool, provides insulation and reduces heat conduction, preventing excessive heat loss. An electric heating tape 12 is wrapped around the outer wall of the inner tube 10 to heat the inner tube 10, maintaining the steam temperature inside and preventing condensation, thus improving processing quality. When the steam enters the steam guide pipe 4 through the evaporation chamber 2, it is filtered by the wire mesh demister 9 in the liquid removal structure 6 to remove liquid droplets and prevent liquid from entering the condensation chamber 3.
[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A single-effect evaporator for concentrating and crystallizing, comprising a heating chamber (1), one side of which is provided with an evaporation chamber (2), one side of which is provided with a condensation chamber (3), characterized in that: The upper end outer surface of the evaporation chamber (2) and the upper end outer surface of the condensation chamber (3) are fixedly connected with a steam flow guide pipe (4), the middle part of the steam flow guide pipe (4) is provided with a temperature sensor (5), one end of the steam flow guide pipe (4) close to the evaporation chamber (2) is provided with a liquid removal structure (6), the steam flow guide pipe (4) comprises an inner pipe (10), an intermediate pipe (11), an electric heat tracing band (12), heat preservation filling cotton (13) and an outer pipe (14), and the liquid removal structure (6) comprises an upper cylinder (7), a flow guide hopper (8) and a wire mesh demister (9), the flow guide hopper (8) is fixedly installed on the lower end outer surface of the upper cylinder (7).
2. A single-effect evaporator for concentrating and crystallizing according to claim 1, characterized in that: The wire mesh demister (9) is fixedly installed in the inside of the upper cylinder (7).
3. A single-effect evaporator for concentrating and crystallizing according to claim 2, characterized in that: The electric heat tracing band (12) is wound on the outer wall of the inner pipe (10).
4. A single-effect evaporator for concentrating and crystallizing according to claim 3, characterized in that: The intermediate pipe (11) is installed on the outside of the inner pipe (10), and the electric heat tracing band (12) is located between the inner wall of the intermediate pipe (11) and the outer wall of the inner pipe (10).
5. A single-effect evaporator for concentrating and crystallizing according to claim 4, characterized in that: The outer pipe (14) is located on the outside of the intermediate pipe (11), and the heat preservation filling cotton (13) is filled between the outer wall of the intermediate pipe (11) and the inner wall of the outer pipe (14).
6. A single-effect evaporator for concentrating and crystallizing according to claim 5, characterized in that: The material of the heat preservation filling cotton (13) is stone rock wool.