Novel multi-effect evaporation separation chamber
By improving the structure and equipment of the multi-effect evaporation separation chamber, the problems of salt corner blockage and inconvenient observation were solved, the convenience of salt corner cleaning and the improvement of evaporation efficiency were realized, and the risk of impurities in secondary steam condensate was reduced.
Patent Information
- Application Number
- CN202422519643.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-18
AI Technical Summary
Existing multi-effect evaporators are prone to clogging, and the crystals on the inner wall of the salt corner are difficult to clean. Unstable evaporation leads to excessive impurities in the secondary steam condensate, and the heating chamber is inconvenient to observe.
A novel multi-effect evaporation separation chamber is designed, which adopts sequentially connected first- to fourth-effect separation zones, adds flanges and manhole observation windows, improves the salt angle shape, installs demisters and sight glasses, and optimizes pipeline connections and pump configuration.
It reduces the difficulty of cleaning salt corners, lowers the risk of excessive impurities in secondary steam condensate, and improves evaporation efficiency and the convenience of observing evaporation status.
Smart Images
Figure CN223529953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium-ion batteries, and in particular to a novel multi-effect evaporation separation chamber. Background Technology
[0002] With the rapid development of the chemical industry, multi-effect evaporation is widely used and is an indispensable part of the chemical industry. However, existing multi-effect evaporation salt corners have problems. When the salt content of the material is high, a large amount of salt will precipitate and cause blockage of the salt corner. A large amount of crystals will adhere to the inner wall of the salt corner, and the salt corner is inconvenient to clean because there is no flange connection. Moreover, when the evaporation is unstable, the impurities in the secondary steam condensate exceed the standard, and evaporation needs to be repeated, which consumes a lot of manpower and materials. At the same time, because the test mirror of the heating chamber is located at the top, it is inconvenient to observe the evaporation status in the gradually heating chamber. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings of the existing technology by providing a novel multi-effect evaporation separation chamber.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] The present invention provides a novel multi-effect evaporation separation chamber, comprising a first-effect separation zone, a second-effect separation zone, a third-effect separation zone, and a fourth-effect separation zone connected in sequence. The fourth-effect separation zone is connected to one end of a steam preheater, the other end of the steam preheater is connected to one end of an indirect condenser, and the other end of the indirect condenser is connected to a vacuum unit.
[0006] Furthermore, the first-effect separation zone includes a first-effect separation chamber, one end of which is connected to one end of a first-effect heating chamber via a first pipe, the other end of which is connected to the first-effect separation chamber via a second pipe, and the other end of which is connected to a second-effect heating chamber via a third pipe.
[0007] Furthermore, the first-effect separation chamber is connected to the feed pipe, and the first-effect heating chamber is connected to the steam pipe and the balance tank respectively.
[0008] Furthermore, the double-effect separation zone includes a double-effect separation chamber, one end of which is connected to one end of the double-effect heating chamber via a fourth pipe, the other end of the double-effect heating chamber is connected to the double-effect separation chamber via a fifth pipe, and the other end of the double-effect separation chamber is connected to the triple-effect heating chamber via a sixth pipe.
[0009] Furthermore, the triple-effect separation zone includes a triple-effect separation chamber, one end of which is connected to one end of the triple-effect heating chamber via a seventh pipe, the other end of which is connected to the triple-effect separation chamber via an eighth pipe, and the other end of which is connected to the quadruple-effect heating chamber via a ninth pipe.
[0010] Furthermore, the four-effect separation zone includes a four-effect separation chamber, one end of which is connected to one end of the four-effect heating chamber via a tenth pipe, the other end of which is connected to the four-effect separation chamber via an eleventh pipe, and the other end of which is connected to the steam preheater via a twelfth pipe.
[0011] Furthermore, both the indirect condenser and the steam preheater are connected to the secondary steam condensate tank.
[0012] Furthermore, the first-effect separation chamber is connected to the second-effect separation chamber via a thirteenth pipe; the second-effect separation chamber is connected to the third-effect separation chamber via a fourteenth pipe; the third-effect separation chamber is connected to the fourth-effect separation chamber via a fifteenth pipe; and the fourth-effect separation chamber is connected to the centrifuge via a sixteenth pipe.
[0013] Furthermore, a single-effect crystallization discharge pump is installed on the thirteenth pipeline; a double-effect crystallization discharge pump is installed on the fourteenth pipeline; a triple-effect discharge pump is installed on the fifteenth pipeline; a quadruple-effect discharge pump is installed on the sixteenth pipeline; a single-effect forced circulation pump is installed on the first pipeline; a double-effect circulation pump is installed on the fourth pipeline; a triple-effect circulation pump is installed on the seventh pipeline; and a quadruple-effect circulation pump is installed on the tenth pipeline.
[0014] Furthermore, a demister is installed in the interior of the quadruple separation chamber adjacent to the twelfth pipe, a sight glass and a manhole observation window are installed on the side wall of the quadruple separation chamber, and a flange is installed on the end of the quadruple separation chamber away from the demister.
[0015] The beneficial effects of this utility model are as follows: adding a flange below the salt corner and a manhole at the arc reduces the difficulty of cleaning and facilitates internal inspection and cleaning of the salt corner; changing the original obtuse angle of the salt corner and the separate connection to an arc shape can effectively reduce crystallization on the inner wall of the salt corner; adding a demister to the top of the separate connection can effectively reduce the amount of liquid carried away by foam with the secondary steam, reducing the risk of excessive impurities in the secondary steam condensate; adding a test mirror to the lower part of the heating chamber can effectively observe the evaporation status in the gradually heating chamber; and increasing the overall evaporation efficiency. Attached Figure Description
[0016] Figure 1 A flowchart of a novel multi-effect evaporation separation chamber;
[0017] Figure 2 This is a schematic diagram of the structure of a four-effect separation chamber. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0019] Please see Figure 1 A novel multi-effect evaporation separation chamber includes a first-effect separation zone, a second-effect separation zone, a third-effect separation zone, and a fourth-effect separation zone connected in sequence. The fourth-effect separation zone is connected to one end of a steam preheater 5, and the other end of the steam preheater 5 is connected to one end of an indirect condenser 6. The other end of the indirect condenser 6 is connected to a vacuum unit 7.
[0020] The first-effect separation zone includes a first-effect separation chamber 101. One end of the first-effect separation chamber 101 is connected to one end of a first-effect heating chamber 102 through a first pipe 801. The other end of the heating chamber 102 is connected to the first-effect separation chamber 101 through a second pipe 802. The other end of the first-effect separation chamber 101 is connected to a second-effect heating chamber 202 through a third pipe 803.
[0021] The first-effect separation chamber 101 is connected to the feed pipe 901, and the first-effect heating chamber 102 is connected to the steam pipe 903 and the balance tank 103 respectively.
[0022] The double-effect separation zone includes a double-effect separation chamber 201. One end of the double-effect separation chamber 201 is connected to one end of the double-effect heating chamber 202 through a fourth pipe 804. The other end of the double-effect heating chamber 202 is connected to the double-effect separation chamber 201 through a fifth pipe 805. The other end of the double-effect separation chamber 201 is connected to the triple-effect heating chamber 302 through a sixth pipe 806.
[0023] The triple-effect separation zone includes a triple-effect separation chamber 301. One end of the triple-effect separation chamber 301 is connected to one end of the triple-effect heating chamber 302 through a seventh pipe 807. The other end of the triple-effect heating chamber 302 is connected to the triple-effect separation chamber 301 through an eighth pipe 808. The other end of the triple-effect separation chamber 301 is connected to the quadruple-effect heating chamber 402 through a ninth pipe 809.
[0024] The four-effect separation zone includes a four-effect separation chamber 401. One end of the four-effect separation chamber 401 is connected to one end of the four-effect heating chamber 402 through a tenth pipe 8010. The other end of the four-effect heating chamber 402 is connected to the four-effect separation chamber 401 through an eleventh pipe 8011. The other end of the four-effect separation chamber 401 is connected to the steam preheater 5 through a twelfth pipe 8012.
[0025] Both the indirect condenser 6 and the steam preheater 5 are connected to the secondary steam condensate tank 501.
[0026] The first-effect separation chamber 101 is connected to the second-effect separation chamber 201 via a thirteenth pipe 8013; the second-effect separation chamber 201 is connected to the third-effect separation chamber 301 via a fourteenth pipe 8014; the third-effect separation chamber 301 is connected to the fourth-effect separation chamber 401 via a fifteenth pipe 8015; and the fourth-effect separation chamber 401 is connected to the centrifuge 405 via a sixteenth pipe 8016.
[0027] A single-effect crystallization discharge pump 103 is installed on the thirteenth pipe 8013; a double-effect crystallization discharge pump 203 is installed on the fourteenth pipe 8014; a triple-effect discharge pump 303 is installed on the fifteenth pipe 8015; a quadruple-effect discharge pump 403 is installed on the sixteenth pipe 8016; a single-effect forced circulation pump 104 is installed on the first pipe 801; a double-effect circulation pump 204 is installed on the fourth pipe 804; a triple-effect circulation pump 304 is installed on the seventh pipe 807; and a quadruple-effect circulation pump 404 is installed on the tenth pipe 8010.
[0028] Please see Figure 2 A demister 405 is installed in the interior of the quadruple separation chamber 401 adjacent to the twelfth pipe 8012. A sight glass 406 and a manhole observation window 407 are installed on the side wall of the quadruple separation chamber 401. A flange 408 is installed on the end of the quadruple separation chamber 401 away from the demister 405.
[0029] In one specific implementation, the end of the four-effect separation chamber 401 that is separated from the demister 405 is a salt corner for storing salt. A flange is installed below the salt corner, and a manhole observation window 407 is installed near the salt corner, which reduces the difficulty of cleaning and makes it easier to inspect and clean the inside of the salt corner. The original obtuse angle of the salt corner and the separation connection is changed to an arc shape, which can effectively reduce crystallization on the inner wall of the salt corner.
[0030] A demister 405 is installed at the top inside the four-effect separation chamber 401, which can effectively reduce the amount of foam discharged with the secondary steam and reduce the risk of excessive impurities in the secondary steam condensate.
[0031] Demister 405 refers to demister models DG200-DG6400;
[0032] The sight glass 406 can effectively observe the evaporation state inside the four-effect separation chamber 401.
[0033] Among them, live steam refers to fresh saturated water vapor that serves as a heat source during the evaporation process.
[0034] The difference between live steam and secondary steam is that live steam is fresh saturated water vapor that is directly added to the evaporation process as a heat source, while secondary steam is steam that is evaporated from the solution.
[0035] To facilitate understanding of the above-mentioned technical solution of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below:
[0036] The material from the first effect is preheated and enters the first-effect separation chamber 101. Saturated live steam enters the first-effect heating chamber 101. The material from the first effect, through the action of the first-effect forced circulation pump 104, enters the first-effect heating chamber 102 from below, exchanges heat with the saturated live steam, and is then heated before returning to the first-effect separation chamber 101 from above. The material from the first effect is then pumped into the second-effect separation chamber 201 by the first-effect crystallization discharge pump 103, and the liquid level in the first-effect separation chamber 101 is stabilized at 30%. The secondary steam produced by the heating in the first-effect separation chamber 101 enters the second-effect heating chamber 202 from above. The material from the second effect is then pumped by the second-effect circulation pump 204, passing through the second... After heat exchange in the first-effect heating chamber 202, the material returns to the second-effect separation chamber 201. The steam generated from the heat exchange enters the third-effect heating chamber 301. The material from the second-effect chamber enters the third-effect separation chamber 301 via the second-effect crystallization discharge pump 203. The material from the third-effect chamber enters the third-effect heating chamber 302 via the third-effect circulation pump 304. After heat exchange, the material returns to the third-effect separation chamber 301. The steam generated from the heat exchange enters the fourth-effect heating chamber 402. The material from the third-effect chamber enters the fourth-effect separation chamber 401 via the third-effect discharge pump 303. The material from the fourth-effect chamber enters the fourth-effect heating chamber 402 via the fourth-effect circulation pump 404. The concentrated salt returns to the fourth-effect separation chamber 401. The crystallized salt falls to the salt corner and enters the centrifuge 405 via the fourth-effect discharge pump 403 for solid-liquid separation.
[0037] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be defined by the appended claims.
Claims
1. A novel multi-effect evaporation separation chamber, characterized in that: It includes a first-effect separation zone, a second-effect separation zone, a third-effect separation zone and a fourth-effect separation zone connected in sequence. The fourth-effect separation zone is connected to one end of the steam preheater (5), the other end of the steam preheater (5) is connected to one end of the indirect condenser (6), and the other end of the indirect condenser (6) is connected to the vacuum unit (7). A demister (4051) is installed in the chamber adjacent to the twelfth pipe (8012) of the four-effect separation chamber (401). A sight glass (406) and a manhole observation window (407) are installed on the side wall of the four-effect separation chamber (401). A flange (408) is installed on the end of the four-effect separation chamber (401) that is away from the demister (4051). The salt corner and the connection between the separation chamber are arc-shaped.
2. The novel multi-effect evaporation separation chamber according to claim 1, characterized in that: The first-effect separation zone includes a first-effect separation chamber (101), one end of which is connected to one end of a first-effect heating chamber (102) via a first pipe (801), the other end of which is connected to the first-effect separation chamber (101) via a second pipe (802), and the other end of which is connected to a second-effect heating chamber (202) via a third pipe (803).
3. The novel multi-effect evaporation separation chamber according to claim 2, characterized in that: The first-effect separation chamber (101) is connected to the feed pipe (901), and the first-effect heating chamber (102) is connected to the steam pipe (903) and the balance tank (103) respectively.
4. The novel multi-effect evaporation separation chamber according to claim 3, characterized in that: The double-effect separation zone includes a double-effect separation chamber (201), one end of which is connected to one end of the double-effect heating chamber (202) via a fourth pipe (804), the other end of which is connected to the double-effect separation chamber (201) via a fifth pipe (805), and the other end of which is connected to the triple-effect heating chamber (302) via a sixth pipe (806).
5. A novel multi-effect evaporation separation chamber according to claim 4, characterized in that: The triple-effect separation zone includes a triple-effect separation chamber (301), one end of which is connected to one end of the triple-effect heating chamber (302) via a seventh pipe (807), the other end of which is connected to the triple-effect separation chamber (301) via an eighth pipe (808), and the other end of which is connected to the quadruple-effect heating chamber (402) via a ninth pipe (809).
6. A novel multi-effect evaporation separation chamber according to claim 5, characterized in that: The four-effect separation zone includes a four-effect separation chamber (401). One end of the four-effect separation chamber (401) is connected to one end of the four-effect heating chamber (402) through a tenth pipe (8010). The other end of the four-effect heating chamber (402) is connected to the four-effect separation chamber (401) through an eleventh pipe (8011). The other end of the four-effect separation chamber (401) is connected to the steam preheater (5) through a twelfth pipe (8012).
7. A novel multi-effect evaporation separation chamber according to claim 6, characterized in that: Both the indirect condenser (6) and the steam preheater (5) are connected to the secondary steam condensate tank (501).
8. A novel multi-effect evaporation separation chamber according to claim 7, characterized in that: The first-effect separation chamber (101) and the second-effect separation chamber (201) are connected by a thirteenth pipe (8013); the second-effect separation chamber (201) and the third-effect separation chamber (301) are connected by a fourteenth pipe (8014); the third-effect separation chamber (301) and the fourth-effect separation chamber (401) are connected by a fifteenth pipe (8015); and the fourth-effect separation chamber (401) is connected to the centrifuge (405) by a sixteenth pipe (8016).
9. A novel multi-effect evaporation separation chamber according to claim 8, characterized in that: A single-effect crystallization discharge pump (1031) is installed on the thirteenth pipe (8013); a double-effect crystallization discharge pump (203) is installed on the fourteenth pipe (8014); a triple-effect discharge pump (303) is installed on the fifteenth pipe (8015); a quadruple-effect discharge pump (403) is installed on the sixteenth pipe (8016); a single-effect forced circulation pump (104) is installed on the first pipe (801); a double-effect circulation pump (204) is installed on the fourth pipe (804); a triple-effect circulation pump (304) is installed on the seventh pipe (807); and a quadruple-effect circulation pump (404) is installed on the tenth pipe (8010).