Multi-effect distilled water machine

Abstract

The utility model discloses a multi-effect water distiller which comprises a first-effect evaporator, one side of the first-effect evaporator is connected with a first preheater through a pipeline, and the side, away from the first-effect evaporator, of the first preheater is connected with a second-effect evaporator through a pipeline. The other side of the second-effect evaporator is sequentially connected with a second preheater, a third-effect evaporator, a third preheater, a fourth-effect evaporator, a fourth preheater and a last-effect evaporator through pipelines. The second preheater, the triple-effect evaporator, the third preheater, the quadruple-effect evaporator, the fourth preheater and the last-effect evaporator are sequentially connected through pipelines from left to right. The utility model belongs to the technical field of distilled water preparation, and particularly relates to a multi-effect distilled water machine which overcomes the defects that in the production process of distilled water, a steam source breaks down sometimes, so that distilled water cannot be produced; in addition, sanitation dead angles exist, and after pasteurization is completed, disinfection is not thorough, and products are unqualified.

Description

Technical Field

[0001] The utility model belongs to the technical field of distilled water preparation, in particular to a multi-effect distilled water machine. Background Art

[0002] The purity and quality of distilled water are crucial in fields such as scientific research, healthcare, and industrial production. Multi-effect water distiller is the star of this art of distillation. The water for injection produced by a multi-effect water distiller must meet the requirements of the Chinese Pharmacopoeia (CP2010), the United States Pharmacopoeia (USP34), and the European Pharmacopoeia (EP7). Advantages of a multi-effect water distiller: High efficiency and energy saving, multiple uses of heat energy, and reduced energy consumption. High-purity distilled water effectively removes impurities and contaminants. Automated operation reduces human intervention and improves production efficiency. Compact design, small footprint, and easy installation and maintenance.

[0003] Multi-effect water distiller applications: Laboratories: Used for preparing high-purity reagents and experimental water. Medical industry: Used in pharmaceuticals, water for injection, and other fields with stringent water quality requirements. Electronics industry: Used for cleaning and manufacturing electronic components, requiring high-purity distilled water. Chemical industry: Used to ensure distilled water quality during chemical reactions and product preparation. Four- or five-effect water distiller types are commonly used, as their output meets these requirements. Utility Model Content

[0004] The technical problem to be solved by the present invention is that, during the production process of distilled water, the steam source may sometimes fail, resulting in the inability to produce distilled water; in addition, there may be sanitary blind spots, resulting in incomplete disinfection and unqualified products after pasteurization.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: A multi-effect distilled water machine proposed in the present invention includes a first-effect evaporator, one side of the first-effect evaporator is connected to a first preheater through a pipeline, the first preheater is connected to a second-effect evaporator through a pipeline on a side away from the first-effect evaporator, the other side of the second-effect evaporator is connected to a second preheater, a third preheater, a fourth-effect evaporator, a fourth preheater and a last-effect evaporator through pipelines in sequence, the second preheater, the third-effect evaporator, the third preheater, the fourth preheater and the last-effect evaporator are connected in sequence from left to right through pipelines, the end of the last-effect evaporator is connected to a first condenser by extension, the other side of the first condenser is connected to a second condenser through a pipeline, the end of the second condenser is connected to a buffer tank through a pipeline, and the side of the buffer tank away from the second condenser is connected to a steam generator through a pipeline.

[0006] As an improvement, a water feed pump is provided on the connecting pipeline between the steam generator and the buffer tank.

[0007] As an improvement, a new steam pipeline is extended from the other side of the steam generator, and a Y-type filter is added to the connecting pipeline between the new steam pipeline and the steam generator.

[0008] As an improvement, the pipelines connecting the first-effect evaporator to the water feed pump are all original steam pipelines.

[0009] As an improvement, the raw steam pipeline is connected to the first preheater-steam generator in sequence from the first-effect evaporator and then to the feed water pump, and the raw steam pipeline is connected to the end of the Y-type filter and the first-effect evaporator.

[0010] As an improvement, the original steam pipeline connects the newly added steam pipeline to the first-effect evaporator end to end.

[0011] As an improvement, a gas-liquid separator is provided on the original steam pipeline, and a steam inlet is provided at the connection position between the original steam pipeline and the first-effect evaporator.

[0012] As an improvement, an overflow pipe and a one-way valve are installed in the water supply pump to prevent excessive water supply.

[0013] As an improvement, the first condenser and the second condenser are arranged at an angle.

[0014] The beneficial effects achieved by the utility model using the above structure are as follows: the multi-effect distilled water machine proposed in this solution effectively overcomes the problems of substandard quality of distilled water, incomplete disinfection and unqualified products prepared in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention provides a working flow chart of a multi-effect distilled water machine.

[0016] Among them, 1. First-effect evaporator; 2. First preheater; 3. Second-effect evaporator; 4. Second preheater; 5. Third-effect evaporator; 6. Third preheater; 7. Fourth-effect evaporator; 8. Fourth preheater; 9. Last-effect evaporator; 10. First condenser; 11. Second condenser; 12. Buffer tank; 13. Steam generator; 14. Feed water pump; 15. New steam pipeline; 16. Y-type filter; 17. Original steam pipeline; 18. Gas-liquid separator; 19. Steam inlet. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] like Figure 1 As shown, a multi-effect distilled water machine proposed in the utility model includes a first-effect evaporator 1, one side of the first-effect evaporator 1 is connected to a first preheater 2 through a pipeline, the first preheater 2 is connected to a second-effect evaporator 3 through a pipeline on a side away from the first-effect evaporator 1, and the other side of the second-effect evaporator 3 is connected to a second preheater 4, a third-effect evaporator 5, a third preheater 6, a fourth-effect evaporator 7, a fourth preheater 8 and a last-effect evaporator 9 through pipelines in sequence, and the second preheater 4, the third-effect evaporator 5, the third preheater 6, the fourth-effect evaporator 7, the fourth preheater 8 and the last-effect evaporator 9 are connected in a progressive pipeline connection order from left to right, and the end of the last-effect evaporator 9 is connected to a first condenser 10 through an extension, the other side of the first condenser 10 is connected to a second condenser 11 through a pipeline, and the end of the second condenser 11 is connected to a buffer tank 12 through a pipeline, and the side of the buffer tank 12 away from the second condenser 11 is connected to a steam generator 13 through a pipeline.

[0019] like Figure 1 As shown, a feedwater pump 14 is provided on the connecting pipeline between the steam generator 13 and the buffer tank 12; a new steam pipeline 15 extends from the other side of the steam generator 13, and a Y-type filter 16 is added to the connecting pipeline between the new steam pipeline 15 and the steam generator 13; the pipeline connecting the first-effect evaporator 1 to the feedwater pump 14 is all the original steam pipeline 17; the original steam pipeline 17 is connected to the first preheater 2-steam generator 13 in sequence from the first-effect evaporator 1 and then connected to the feedwater pump 14, and the original steam pipeline 17 connects the end of the Y-type filter 16 to the first-effect evaporator 1; the original steam pipeline 17 connects the new steam pipeline 15 and the first-effect evaporator 1 end to end; a gas-liquid separator 18 is provided on the original steam pipeline 17, and a steam inlet 19 is provided at the connection position between the original steam pipeline 17 and the first-effect evaporator 1; an overflow pipe and a one-way valve are installed in the feedwater pump 14 to prevent excessive water supply; the first condenser 10 and the second condenser 11 are arranged at an angle.

[0020] In specific use, qualified raw water is pressurized by the steam generator 13 and enters the first condenser 10 through the flow meter. It uses waste heat for heat exchange. After heat exchange, the temperature is A℃ lower than the steam heated by the first-effect evaporator 1-second preheater 4. Then it passes through the first preheater 2 and enters the first-effect evaporator 1. The raw water is sprayed on the inner wall of the heating tube in the first-effect evaporator 1, so that the raw water flows in the tube in a film shape and is heated and vaporized by the steam from the boiler. The secondary steam with water droplets is separated into pure steam and unevaporated raw water after three stages and enters the second condenser 10. The second preheater 4 and the second-effect evaporator 3 repeat the above process and then enter the third preheater 6 and the third-effect evaporator 5, repeat the above process again, and finally enter the fourth preheater 8 and the fourth-effect evaporator 7. During the process, it finally enters the last-effect evaporator 9. Only when the steam is heated in the first-effect evaporator 1 is provided by the boiler. The condensed water in the first-effect evaporator 1 cannot be used as distilled water. The condensed water in the remaining second-effect evaporator 3, the third-effect evaporator 5, and the third preheater 6 is condensed from pure steam. The heat source has been removed, so it can be used as qualified distilled water.

[0021] In addition, the residual water in the last-effect evaporator 9 must be discharged as sewage because it carries impurities and heat sources in all the feed water. The pure steam generated by the last-effect evaporator 9 enters the condenser and is mixed and cooled with the condensed water from the first-effect evaporator 1, the second-effect evaporator 3, the third-effect evaporator 5, and the fourth-effect evaporator 7. After the insoluble gas is removed, it becomes distilled water.

[0022] During the above-mentioned distilled water production process, the steam source may sometimes malfunction, resulting in the inability to produce distilled water; in addition, there may be sanitary dead corners, and after pasteurization, the disinfection may not be thorough and the product may be unqualified. Therefore, the unqualified distilled water produced through the above-mentioned production process flows into the water supply pump 14 through the buffer tank 12 and finally enters the newly added steam generator 13, and is filtered through the newly added steam pipeline 15 and further transmitted by the Y-type filter 16, and finally passes through the original steam pipeline 17 and the gas-liquid separator 18 from the steam inlet 19 to enter the first-effect evaporator 1 for urgent evaporation until the distilled water output is all qualified. The Y-type filter 16 can filter out impurities in the steam, and the gas-liquid separator 18 is used to improve the purity of the steam. The water supply pump 14 is equipped with an overflow pipe and a one-way valve to prevent excessive water supply; and in order to prevent sanitary dead corners, the first condenser 10 and the second condenser 11 are arranged at an angle, which is conducive to the discharge of distilled water and the sewage outlet, and is also conducive to the disinfection of the entire system.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0024] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A multi-effect distilled water machine, comprising a first-effect evaporator (1), characterized in that: One side of the first-effect evaporator (1) is connected to a first preheater (2) through a pipeline. The side of the first preheater (2) away from the first-effect evaporator (1) is connected to a second-effect evaporator (3) through a pipeline. The other side of the second-effect evaporator (3) is connected to a second preheater (4), a third-effect evaporator (5), a third preheater (6), a fourth-effect evaporator (7), a fourth preheater (8) and a last-effect evaporator (9) through pipelines in sequence. 6), the fourth-effect evaporator (7), the fourth preheater (8) and the final-effect evaporator (9) are connected in a progressive pipeline connection order from left to right. The end of the final-effect evaporator (9) is connected to the first condenser (10), the other side of the first condenser (10) is connected to the second condenser (11) through a pipeline, the end of the second condenser (11) is connected to a buffer tank (12) through a pipeline, and the side of the buffer tank (12) away from the second condenser (11) is connected to the steam generator (13) through a pipeline.

2. A multi-effect distilled water machine according to claim 1, characterized in that: A water feed pump (14) is provided on the connecting pipeline between the steam generator (13) and the buffer tank (12).

3. A multi-effect distilled water machine according to claim 1, characterized in that: A new steam pipeline (15) extends from the other side of the steam generator (13), and a Y-type filter (16) is added to the connecting pipeline between the new steam pipeline (15) and the steam generator (13).

4. A multi-effect distilled water machine according to claim 1, characterized in that: The pipelines connecting the first-effect evaporator (1) to the water feed pump (14) are all original steam pipelines (17).

5. A multi-effect distilled water machine according to claim 4, characterized in that: The raw steam pipeline (17) is connected from the first-effect evaporator (1) to the first preheater (2) and the steam generator (13) in sequence, and then to the feed water pump (14). The raw steam pipeline (17) is connected to the end of the Y-type filter (16) and the first-effect evaporator (1).

6. The multi-effect distilled water machine according to claim 4, characterized in that: The original steam pipeline (17) connects the newly added steam pipeline (15) and the first-effect evaporator (1) end to end.

7. The multi-effect distilled water machine according to claim 4, characterized in that: A gas-liquid separator (18) is provided on the raw steam pipeline (17), and a steam inlet (19) is provided at the connection position between the raw steam pipeline (17) and the first-effect evaporator (1).

8. The multi-effect water distiller according to claim 2, characterized in that: An overflow pipe and a one-way valve are installed in the water supply pump (14) to prevent excessive water supply.

9. The multi-effect water distiller according to claim 1, characterized in that: The first condenser (10) and the second condenser (11) are arranged at an angle.

Images