CN216336946U

CN216336946U - High-utilization-rate pure water treatment system

Info

Publication number: CN216336946U
Application number: CN202123112357.3U
Authority: CN
Inventors: 马兵; 李京; 李丹
Original assignee: Chongqing Molecular Water System Co ltd
Current assignee: Chongqing Molecular Water System Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-19
Anticipated expiration: 2031-12-06

Abstract

The utility model provides a high-utilization-rate pure water treatment system which comprises a raw water tank, a raw water pump, a mechanical filter, an activated carbon filter, a softening filter, a security filter, a first-stage high-pressure pump, a first-stage RO (reverse osmosis) device, an intermediate water tank, a second-stage high-pressure pump, a second-stage RO device, an ED I (ultra pure water) device, a ultrapure water tank and a circulating pump which are sequentially connected through pipelines, wherein a water outlet of the circulating pump is connected with a water inlet of the intermediate water tank through a pipeline. Due to the adoption of the technical scheme, the utility model can improve the utilization rate of tap water, save water resources and reduce the cost for manufacturing ultrapure water.

Description

High-utilization-rate pure water treatment system

Technical Field

The utility model belongs to the technical field of water treatment, and particularly relates to a high-utilization-rate pure water treatment system.

Background

The problem that an ultrapure water system adopting a reverse osmosis membrane process is difficult to avoid is the comprehensive utilization rate of tap water, and pretreatment of forward washing and reverse washing water discharge, primary reverse osmosis concentrated water drainage, secondary concentrated water discharge and EDI concentrated water discharge are involved in the process. Ultrapure water in the ultrapure water tank can be conveyed to a water using point according to the using requirement, part of ultrapure water needs to be circulated back to the ultrapure water tank, and the ultrapure water can cause unqualified conductivity after long-time circulation, so that the ultrapure water with unqualified conductivity can be discharged. The water discharged from a plurality of places is not effectively utilized, the use cost of users is improved, and the water is also the great waste of social resources.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-utilization-rate pure water treatment system capable of improving the utilization rate of tap water.

The utility model aims to realize the technical scheme, which comprises a raw water tank, a raw water pump, a mechanical filter, an activated carbon filter, a softening filter, a cartridge filter, a first-stage high-pressure pump, a first-stage RO reverse osmosis device, an intermediate water tank, a second-stage high-pressure pump, a second-stage RO reverse osmosis device, an EDI device, a ultrapure water tank and a circulating pump, wherein a water outlet of the raw water tank is connected with a water inlet of the raw water pump through a first pipeline, a water outlet of the raw water pump is connected with a water inlet of the mechanical filter through a second pipeline, a water outlet of the mechanical filter is connected with a water inlet of the activated carbon filter through a third pipeline, a water outlet of the activated carbon filter is connected with a water inlet of the softening filter through a fourth pipeline, a water outlet of the softening filter is connected with a water inlet of the cartridge filter through a fifth pipeline, a water outlet of the cartridge filter is connected with a water inlet of the first-stage high-pressure pump through a sixth pipeline, the water outlet of the first-stage high-pressure pump is connected with the water inlet of the first-stage RO reverse osmosis filter device through a seventh pipeline, the pure water outlet of the first-stage RO reverse osmosis device is connected with the water inlet of the middle water tank through an eighth pipeline, the water outlet of the intermediate water tank is connected with the water inlet of a second-stage high-pressure pump through a ninth pipeline, the water outlet of the second-stage high-pressure pump is connected with the water inlet of a second-stage RO reverse osmosis device through a tenth pipeline, the pure water outlet of the second-stage RO reverse osmosis device is connected with the pure water cavity inlet of the ED I device through an eleventh pipeline, the eleventh pipeline is connected with a twelfth pipeline which is connected with an inlet of a concentrated water cavity of the ED I device, the pure water outlet of the ED I device is connected with the water inlet of the ultrapure water tank through a thirteenth pipeline, the water outlet of the ultrapure water tank is connected with the water inlet of the circulating pump through a fourteenth pipeline, and the water outlet of the circulating pump is connected with the water inlet of the middle water tank through a fifteenth pipeline.

Further, a concentrated water outlet of the ED I device is connected with a water inlet of the middle water tank through a sixteenth pipeline.

Further, a concentrated water outlet of the second-stage RO reverse osmosis device is connected with a water inlet of the raw water tank through a seventeenth pipeline.

Further, the pure water treatment system also comprises a clarifier, a concentrated water outlet of the first-level RO reverse osmosis device is connected with an eighteenth pipeline, the eighteenth pipeline is connected with a nineteenth pipeline and a twentieth pipeline, the nineteenth pipeline is connected with a water inlet of the raw water tank, and the twentieth pipeline is connected with a water inlet of the clarifier.

Further, a twenty-first pipeline is connected between the second pipeline and the third pipeline, a first valve is arranged on the twenty-first pipeline, a second valve is arranged on the second pipeline, the second valve is positioned between the connection position of the twenty-first pipeline and the second pipeline and the water inlet of the mechanical filter, a third valve is arranged on the third pipeline, the third valve is positioned between the connection position of the twenty-first pipeline and the third pipeline and the water inlet of the activated carbon filter, a twenty-second pipeline is connected onto the second pipeline, one end of the twenty-second pipeline is connected with the second pipeline, the other end of the twenty-second pipeline is connected with the water inlet of the clarifier, the connection position of the twenty-second pipeline and the second pipeline is positioned between the second valve and the inlet of the mechanical filter, a twenty-third pipeline is connected onto the third pipeline, one end of the twenty-third pipeline is connected with the third pipeline, the twenty-second pipeline is connected to the other end of the twenty-third pipeline, the connection position of the twenty-third pipeline and the third pipeline is located between the connection position of the twenty-first pipeline and the third pipeline and the water outlet of the mechanical filter, a fourth valve is arranged on the twenty-second pipeline, the fourth valve is located between the connection position of the twenty-second pipeline and the connection position of the twenty-third pipeline and the twenty-second pipeline, and a fifth valve is arranged on the twenty-third pipeline.

Further, a twenty-fourth pipeline is connected between the third pipeline and the fourth pipeline, a sixth valve is arranged on the twenty-fourth pipeline, a seventh valve is arranged on the third pipeline, the seventh valve is positioned between the connection position of the twenty-fourth pipeline and the third pipeline and the water inlet of the activated carbon filter, the third valve is positioned between the connection position of the twenty-first pipeline and the third pipeline and the connection position of the twenty-fourth pipeline and the third pipeline, an eighth valve is arranged on the fourth pipeline, the eighth valve is positioned between the connection position of the twenty-fourth pipeline and the water inlet of the softening filter, a twenty-fifth pipeline is connected on the third pipeline, one end of the twenty-fifth pipeline is connected with the third pipeline, the other end of the twenty-fifth pipeline is communicated with the water inlet of the clarifier, the connection position of the twenty-fifth pipeline and the third pipeline is positioned between the seventh valve and the inlet of the activated carbon filter, the device comprises a fourth pipeline, a twenty-sixth pipeline, a fourth pipeline and an activated carbon filter, wherein the fourth pipeline is connected to one end of the twenty-sixth pipeline, the twenty-fifth pipeline is connected to the other end of the twenty-sixth pipeline, the twenty-sixth pipeline and the fourth pipeline are located between the connecting position of the twenty-fourth pipeline and the connecting position of the fourth pipeline and the water outlet of the activated carbon filter, a ninth valve is arranged on the twenty-fifth pipeline and located between the connecting position of the twenty-fifth pipeline and the third pipeline and the connecting position of the twenty-sixth pipeline and the twenty-fifth pipeline, and a tenth valve is arranged on the twenty-sixth pipeline.

Further, a twenty-seventh pipeline is connected between the fourth pipeline and the fifth pipeline, an eleventh valve is arranged on the twenty-seventh pipeline, a twelfth valve is arranged on the fourth pipeline, the twelfth valve is positioned between the connection position of the twenty-seventh pipeline and the fourth pipeline and the water inlet of the softening filter, the eighth valve is positioned between the connection position of the twenty-fourth pipeline and the connection position of the twenty-seventh pipeline and the fourth pipeline, a thirteenth valve is arranged on the fifth pipeline, the thirteenth valve is positioned between the connection position of the twenty-seventh pipeline and the fifth pipeline and the water inlet of the security filter, a twenty-eighth pipeline is connected on the fourth pipeline, one end of the twenty-eighth pipeline is connected with the fourth pipeline, the other end of the twenty-eighth pipeline is communicated with the water inlet of the clarifier, the connection position of the twenty-eighth pipeline and the fourth pipeline is positioned between the twelfth valve and the inlet of the softening filter, the utility model discloses a filter, including the twenty-eighth pipeline, be connected with the twenty-ninth pipeline on the fifth pipeline, the fifth pipeline is connected to the one end of twenty-ninth pipeline, the twenty-eighth pipeline is connected to the other end of twenty-ninth pipeline, the hookup location of twenty-ninth pipeline and fifth pipeline is located between the hookup location of twenty-seventh pipeline and fifth pipeline and the delivery port of softening the filter, be equipped with the fourteenth valve on the twenty-eighth pipeline, the fourteenth valve is located between the hookup location of twenty-eighth pipeline and fourth pipeline and the hookup location of twenty-ninth pipeline and twenty-eighth pipeline, be equipped with the fifteenth valve on the twenty-ninth pipeline.

Further, the pure water treatment system still includes the flush pump, the delivery port of clarifier passes through the thirtieth pipeline and links to each other with the water inlet of flush pump, the delivery port of flush pump passes through the thirty-first pipeline and links to each other with the second pipeline, still be equipped with first check valve on the second pipeline, the hookup location of thirty-first pipeline and second pipeline is located between the hookup location of twenty-first pipeline and second pipeline and first check valve, be equipped with the second check valve on the thirty-first pipeline.

Furthermore, a thirty-second pipeline and a sixteenth valve are arranged on the thirty-first pipeline, one end of the thirty-second pipeline is connected with the thirty-first pipeline, the other end of the thirty-second pipeline is connected with the third pipeline, the connecting position of the thirty-second pipeline and the thirty-first pipeline is located between the second check valve and the sixteenth valve, and the connecting position of the thirty-second pipeline and the third pipeline is located between the connecting position of the twenty-fourth pipeline and the third valve.

Further, a thirty-third pipeline and a seventeenth valve are arranged on the thirty-second pipeline, one end of the thirty-third pipeline is connected with the thirty-second pipeline, the other end of the thirty-third pipeline is connected with the fourth pipeline, the connecting position of the thirty-third pipeline and the thirty-second pipeline is located between the connecting position of the thirty-second pipeline and the thirty-first pipeline and the seventeenth valve, and the connecting position of the thirty-third pipeline and the fourth pipeline is located between the connecting position of the twenty-seventh pipeline and the fourth pipeline and the eighth valve.

Due to the adoption of the technical scheme, the utility model has the beneficial effects that: when the ultrapure water purity of ultrapure water incasement is unqualified, need not stop whole pure water processing system and fall the pure water discharge of ultrapure water incasement, can go into middle water tank through the water pump of circulating pump with ultrapure water incasement, the water in the middle water tank gets into second grade RO reverse osmosis unit after the pressurization of second grade high-pressure pump, then the pure water export water that second grade RO reverse osmosis unit flows out gets into ED I device, the pure water export water that ED I device flows out gets into the ultrapure water case, unqualified pure water of ultrapure water incasement is at ultrapure water case, middle water tank, second grade RO reverse osmosis unit, and behind the multiple cycle between the ED I device, the ultrapure water incasement just can obtain qualified ultrapure water. Need not stop the pure water processing system, can reduce and restart the damage that causes the ED I device, need not directly arrange unqualified pure water as waste water, can improve the utilization ratio of running water, reduce the cost of preparation ultrapure water, save the water resource.

Drawings

FIG. 1 is a schematic diagram of a high-utilization pure water treatment system according to the present invention;

fig. 2 is an enlarged view of a in fig. 1.

In the figure, 1, a raw water tank; 2. a raw water pump; 3. a mechanical filter; 4. an activated carbon filter; 5. a softening filter; 6. a cartridge filter; 7. a first stage high pressure pump; 8. a first-stage RO reverse osmosis device; 9. an intermediate water tank; 10. a second stage high pressure pump; 11. a secondary RO reverse osmosis unit; 12. an ED I device; 13. an ultra pure water tank; 14. a circulation pump; 15. a first conduit; 16. a second conduit; 17. a third pipeline; 18. a fourth conduit; 19. a fifth pipeline; 20. a sixth pipeline; 21. a seventh pipe; 22. an eighth conduit; 23. a ninth conduit; 24. a tenth conduit; 25. an eleventh pipe; 26. a twelfth duct; 27. a thirteenth pipe; 28. a fourteenth pipe; 29. a fifteenth conduit; 30. a sixteenth pipe; 31. a seventeenth pipeline; 32. a clarifier; 33. an eighteenth pipe; 34. a nineteenth pipe; 35. a twentieth pipe; 36. a twenty-first pipe; 37. a first valve; 38. a second valve; 39. a third valve; 40. a twenty-second conduit; 41. a twenty-third conduit; 42. a fourth valve; 43. a fifth valve; 44. a twenty-fourth conduit; 45. a sixth valve; 46. a seventh valve; 47. an eighth valve; 48. a twenty-fifth pipeline; 49. a twenty-sixth pipeline; 50. a ninth valve; 51. a tenth valve; 52. a twenty-seventh conduit; 53. an eleventh valve; 54. a twelfth valve; 55. a thirteenth valve; 56. a twenty-eighth conduit; 57. a twenty-ninth conduit; 58. a fourteenth valve; 59. a fifteenth valve; 60. a flush pump; 61. a thirtieth pipe; 62. a thirty-first conduit; 63. a first check valve; 64. a second check valve; 65. a thirty-second conduit; 66. a sixteenth valve; 67. a thirty-third conduit; 68. a seventeenth valve; 69. and an eighteenth valve.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.

As shown in fig. 1 and 2, the present invention comprises a raw water tank 1, a raw water pump 2, a mechanical filter 3, an activated carbon filter 4, a softening filter 5, a cartridge filter 6, a primary high-pressure pump 7, a primary RO reverse osmosis device 8, an intermediate water tank 9, a secondary high-pressure pump 10, a secondary RO reverse osmosis device 11, an ED I device 12, an ultrapure water tank 13 and a circulation pump 14, wherein a water outlet of the raw water tank 1 is connected to a water inlet of the raw water pump 2 through a first pipeline 15, a water outlet of the raw water pump 2 is connected to a water inlet of the mechanical filter 3 through a second pipeline 16, a water outlet of the mechanical filter 3 is connected to a water inlet of the activated carbon filter 4 through a third pipeline 17, a water outlet of the activated carbon filter 4 is connected to a water inlet of the softening filter 5 through a fourth pipeline 18, a water outlet of the softening filter 5 is connected to a water inlet of the cartridge filter 6 through a fifth pipeline 19, the water outlet of the cartridge filter 6 is connected with the water inlet of a first-stage high-pressure pump 7 through a sixth pipeline 20, the water outlet of the first-stage high-pressure pump 7 is connected with the water inlet of a first-stage RO reverse osmosis device 8 through a seventh pipeline 21, the pure water outlet of the first-stage RO reverse osmosis device 8 is connected with the water inlet of an intermediate water tank 9 through an eighth pipeline 22, the water outlet of the intermediate water tank 9 is connected with the water inlet of a second-stage high-pressure pump 10 through a ninth pipeline 23, the water outlet of the second-stage RO reverse osmosis device 10 is connected with the water inlet of a second-stage RO reverse osmosis device 11 through a tenth pipeline 24, the pure water outlet of the second-stage RO reverse osmosis device 11 is connected with the pure water chamber inlet of an ED I device 12 through an eleventh pipeline 25, a twelfth pipeline 26 is connected to the eleventh pipeline 25 through a tee joint, the twelfth pipeline 26 is connected with the concentrated water chamber inlet of the ED I device 12, the pure water outlet of the ED I device 12 is connected with the water inlet of a ultrapure water tank 13 through a thirteenth pipeline 27, the water outlet of the ultrapure water tank 13 is connected with the water inlet of the circulating pump 14 through a fourteenth pipeline 28, and the water outlet of the circulating pump 14 is connected with the water inlet of the intermediate water tank 9 through a fifteenth pipeline 29.

The concentrated water outlet of the ED I device 12 is connected to the water inlet of the intermediate tank 9 via a sixteenth pipe 30. The ED I concentrated water discharged from the concentrated water outlet of the ED I device 12 can enter the intermediate water tank 9 to be diluted and then filtered by the two-stage RO reverse osmosis device 11 and the ED I device 12, the ED I concentrated water does not need to be directly discharged as waste water, and the utilization rate of the water can be improved.

The concentrated water outlet of the second-stage RO reverse osmosis device 11 is connected with the water inlet of the raw water tank 1 through a seventeenth pipeline 31. The second-level concentrated water discharged from the concentrated water outlet of the second-level RO reverse osmosis device 11 can flow back to the original water tank 1 through a seventeenth pipeline 31, the second-level concentrated water is diluted in the original water tank 1 and then filtered through the first-level RO reverse osmosis device 8, the second-level RO reverse osmosis device 11 and the ED I device 12 again, the second-level concentrated water is not required to be directly discharged as waste water, the second-level concentrated water entering the original water tank 1 can be used as forward washing and backwashing water of the mechanical filter 3, the activated carbon filter 4 and the softening filter 5, and the utilization rate of the water can be further improved.

The pure water treatment system further comprises a clarifier 32, a concentrated water outlet of the first-level RO reverse osmosis ED I device 12 is connected with an eighteenth pipeline 33, the eighteenth pipeline 33 is connected with a nineteenth pipeline 34 and a twentieth pipeline 35, one end of the eighteenth pipeline 33 is connected with a concentrated water outlet of the first-level RO reverse osmosis device 8, the other end of the eighteenth pipeline 33 is connected with the nineteenth pipeline 34 and the twentieth pipeline 35 through a three-way joint, the nineteenth pipeline 34 is connected with a water inlet of the raw water tank 1, and the twentieth pipeline 35 is connected with a water inlet of the clarifier 32. The first-stage concentrated water discharged from the concentrated water outlet of the first-stage RO reverse osmosis device 8 flows into the eighteenth pipeline 33, then enters the raw water tank 1 through the nineteenth pipeline 34, and then enters the clarifier 32 through the twentieth pipeline 35, the first-stage concentrated water entering the raw water tank 1 can be diluted by tap water in the raw water tank 1 and then is filtered through the first-stage RO reverse osmosis device 8, the second-stage RO reverse osmosis device 11 and the ED I device 12 again, the first-stage concentrated water is not required to be directly discharged as waste water, and the first-stage concentrated water entering the raw water tank 1 can be used as forward washing and backwashing water of the mechanical filter 3, the activated carbon filter 4 and the softening filter 5. After entering the clarifier 32, the first-stage concentrated water can be stored in the clarifier 32 to be used as water for forward washing and back washing of the mechanical filter 3, the activated carbon filter 4 and the softening filter 5, and the utilization rate of the water can be further improved.

A twenty-first pipeline 36 is connected between the second pipeline 16 and the third pipeline 17, one end of the twenty-first pipeline 36 is connected to the second pipeline 16 through a three-way joint, the other end of the twenty-first pipeline 36 is connected to the third pipeline 17 through a three-way joint, a first valve 37 is arranged on the twenty-first pipeline 36, a second valve 38 is arranged on the second pipeline 16, the second valve 38 is positioned between the connection position of the twenty-first pipeline 36 and the second pipeline 16 and the water inlet of the mechanical filter 3, a third valve 39 is arranged on the third pipeline 17, the third valve 39 is positioned between the connection position of the twenty-first pipeline 36 and the third pipeline 17 and the water inlet of the activated carbon filter 4, a twenty-second pipeline 40 is connected to the second pipeline 16, one end of the twenty-second pipeline 40 is connected to the second pipeline 16 through a three-way joint, the other end of the twenty-second pipeline 40 is connected with the water inlet of the clarifier 32, the connection position of the twenty-second pipeline 40 and the second pipeline 16 is located between the second valve 38 and the water inlet of the mechanical filter 3, the third pipeline 17 is connected with a twenty-third pipeline 41, one end of the twenty-third pipeline 41 is connected with the third pipeline 17 through a three-way joint, the other end of the twenty-third pipeline 41 is connected with the twenty-second pipeline 40 through a three-way joint, the connection position of the twenty-third pipeline 41 and the third pipeline 17 is located between the connection position of the twenty-first pipeline 36 and the third pipeline 17 and the water outlet of the mechanical filter 3, the twenty-second pipeline 40 is provided with a fourth valve 42, the fourth valve 42 is located between the connection position of the twenty-second pipeline 40 and the second pipeline 16 and the connection position of the twenty-third pipeline 41 and the twenty-second pipeline 40, a fifth valve 43 is arranged on the twenty-third pipeline 41. The water in the raw water tank 1 is the mixed water of tap water, primary concentrated water and secondary concentrated water, and when the water in the raw water tank 1 is used for forward washing of the mechanical filter, the first valve 37, the third valve 39 and the fourth valve 42 are closed, and the second valve 38 and the fifth valve 43 are opened. Under the pumping action of the raw water pump 2, water in the raw water tank 1 sequentially enters the water inlet of the mechanical filter 3 through the first pipeline 15 and the second pipeline 16, then flows out of the water outlet of the mechanical filter 3, and then sequentially enters the clarifier 32 through the third pipeline 17, the twenty-third pipeline 41 and the twenty-second pipeline 40 for storage. When the mechanical filter 3 is backwashed by using the water in the raw water tank 1, the second valve 38, the third valve 39 and the fifth valve 43 are closed, the first valve 37 and the fourth valve 42 are opened, and under the pumping action of the raw water pump 2, the water in the raw water tank 1 sequentially enters the water outlet of the mechanical filter 3 through the first pipeline 15, the second pipeline 16, the twenty-first pipeline 36 and the third pipeline 17, then flows out through the water inlet of the mechanical filter 3, and then sequentially flows into the clarifier 32 through the second pipeline 16 and the twenty-second pipeline 40 for storage. Thus, the forward washing and the back washing of the mechanical filter 3 are realized by utilizing the primary concentrated water and the secondary concentrated water in the raw water tank 1. After the water after the forward washing and the backwashing flows to the clarifier 32, PAC and PAM can be added into the clarifier 32, so that after impurities in the forward washing water and the backwashing water are adsorbed, flocculated and precipitated, supernatant in the clarifier 32 can be utilized to perform forward washing and backwashing on the mechanical filter 3, the activated carbon filter 4 and the softening filter 5, and the utilization rate of the water is further improved.

A twenty-fourth pipeline 44 is connected between the third pipeline 17 and the fourth pipeline 18, one end of the twenty-fourth pipeline 44 is connected with the third pipeline 17 through a three-way joint, the other end of the twenty-fourth pipeline 44 is connected with the fourth pipeline 18 through a three-way joint, a sixth valve 45 is arranged on the twenty-fourth pipeline 44, a seventh valve 46 is arranged on the third pipeline 17, the seventh valve 46 is positioned between the connection position of the twenty-fourth pipeline 44 and the third pipeline 17 and the water inlet of the activated carbon filter 4, the third valve 39 is positioned between the connection position of the twenty-first pipeline 36 and the third pipeline 17 and the connection position of the twenty-fourth pipeline 44 and the third pipeline 17, an eighth valve 47 is arranged on the fourth pipeline 18, the eighth valve 47 is positioned between the connection position of the twenty-fourth pipeline 44 and the fourth pipeline 18 and the water inlet of the softening filter 5, a twenty-fifth pipeline 48 is connected to the third pipeline 17, one end of the twenty-fifth pipeline 48 is connected to the third pipeline 17 through a three-way joint, the other end of the twenty-fifth pipeline 48 is connected to the twenty-second pipeline 40 through a three-way joint, the connection position of the twenty-fifth pipeline 48 and the twenty-second pipeline 40 is located between the connection position of the twenty-third pipeline 41 and the twenty-second pipeline 40 and the water inlet of the clarifier 32, so that the twenty-fifth pipeline 48 can be communicated with the water inlet of the clarifier 32, the connection position of the twenty-fifth pipeline 48 and the third pipeline 17 is located between the seventh valve 46 and the inlet of the activated carbon filter 4, a twenty-sixth pipeline 49 is connected to the fourth pipeline 18, one end of the twenty-sixth pipeline 49 is connected to the fourth pipeline 18 through a three-way joint, the other end of the twenty-sixth pipeline 49 is connected to the twenty-fifth pipeline 48 through a three-way joint, the connection position of the twenty-sixth pipeline 49 and the fourth pipeline 18 is located between the connection position of the twenty-fourth pipeline 44 and the fourth pipeline 18 and the water outlet of the activated carbon filter 4, the twenty-fifth pipeline 48 is provided with a ninth valve 50, the ninth valve 50 is located between the connection position of the twenty-fifth pipeline 48 and the third pipeline 17 and the connection position of the twenty-sixth pipeline 49 and the twenty-fifth pipeline 48, and the twenty-sixth pipeline 49 is provided with a tenth valve 51. When the activated carbon filter 4 is subjected to forward washing by using the water in the raw water tank 1, the first valve 37, the fourth valve 42, the fifth valve 43, the sixth valve 45, the eighth valve 47 and the ninth valve 50 are closed, the second valve 38, the third valve 39, the seventh valve 46 and the tenth valve 51 are opened, under the action of the raw water pump 2, the water in the raw water tank 1 sequentially enters the water inlet of the mechanical filter 3 through the first pipeline 15 and the second pipeline 16, then flows out of the water outlet of the mechanical filter 3 and flows into the water inlet of the activated carbon filter 4 through the third pipeline 17, then flows out of the water outlet of the activated carbon filter 4, and sequentially flows into the clarifier 32 through the fourth pipeline 18, the twenty-sixth pipeline 49, the twenty-fifth pipeline 48 and the twenty-second pipeline 40, and at this time, the forward washing of the activated carbon filter 4 is completed. When the activated carbon filter 4 is backwashed by using the water in the raw water tank 1, the first valve 37, the fourth valve 42, the fifth valve 43, the seventh valve 46, the eighth valve 47 and the tenth valve 51 are closed, the second valve 38, the third valve 39, the sixth valve 45 and the ninth valve 50 are opened, under the action of the raw water pump 2, the water in the raw water tank 1 sequentially enters the water inlet of the mechanical filter 3 through the first pipeline 15 and the second pipeline 16, is discharged from the water outlet of the mechanical filter 3, sequentially enters the water outlet of the activated carbon filter 4 through the third pipeline 17, the twenty-fourth pipeline 44 and the fourth pipeline 18, is discharged from the water inlet of the activated carbon filter 4, and sequentially enters the clarifier 32 through the third pipeline 17, the twenty-fifth pipeline 48 and the twenty-second pipeline 40, and at this time, the backwashing of the mechanical filter 3 is completed. After the water after the forward washing and the backwashing flows to the clarifier 32, PAC and PAM can be added into the clarifier 32, so that after impurities in the forward washing water and the backwashing water are adsorbed, flocculated and precipitated, supernatant in the clarifier 32 can be utilized to perform forward washing and backwashing on the mechanical filter 3, the activated carbon filter 4 and the softening filter 5, and the utilization rate of the water is further improved.

A twenty-seventh pipeline 52 is connected between the fourth pipeline 18 and the fifth pipeline 19, one end of the twenty-seventh pipeline 52 is connected with the fourth pipeline 18 through a three-way joint, the other end of the twenty-seventh pipeline 52 is connected with the fifth pipeline 19 through a three-way joint, an eleventh valve 53 is arranged on the twenty-seventh pipeline 52, a twelfth valve 54 is arranged on the fourth pipeline 18, the twelfth valve 54 is positioned between the connecting position of the twenty-seventh pipeline 52 and the fourth pipeline 18 and the water inlet of the softening filter 5, the eighth valve 47 is positioned between the connecting position of the twenty-fourth pipeline 44 and the fourth pipeline 18 and the connecting position of the twenty-seventh pipeline 52 and the fourth pipeline 18, a thirteenth valve 55 is arranged on the fifth pipeline 19, the thirteenth valve 55 is positioned between the connecting position of the twenty-seventh pipeline 52 and the fifth pipeline 19 and the water inlet of the security filter 6, the fourth pipeline 18 is connected with a twenty-eighth pipeline 56, one end of the twenty-eighth pipeline 56 is connected with the fourth pipeline 18 through a three-way joint, the other end of the twenty-eighth pipeline 56 is connected with the twenty-fifth pipeline 48 through a three-way joint, the twenty-fifth pipeline 48 is connected with the twenty-second pipeline 40, the twenty-second pipeline 40 is connected with the water inlet of the clarifier 32, so that the twenty-eighth pipeline 56 can be communicated with the water inlet of the clarifier 32, the connection position of the twenty-eighth pipeline 56 and the fourth pipeline 18 is positioned between the twelfth valve 54 and the water inlet of the softening filter 5, the fifth pipeline 19 is connected with a twenty-ninth pipeline 57, one end of the twenty-ninth pipeline 57 is connected with the fifth pipeline 19 through a three-way joint, the other end of the twenty-ninth pipeline 57 is connected with the twenty-eighth pipeline 56 through a three-way joint, and the connection position of the twenty-ninth pipeline 57 and the fifth pipeline 19 is positioned at the connection position of the twenty-seventh pipeline 52 and the fifth pipeline 19 And a fourteenth valve 58 is arranged on the twenty-eighth pipeline 56 between the water outlets of the softening filter 5, the fourteenth valve 58 is positioned between the connecting position of the twenty-eighth pipeline 56 and the fourth pipeline 18 and the connecting position of the twenty-ninth pipeline 57 and the twenty-eighth pipeline 56, and a fifteenth valve 59 is arranged on the twenty-ninth pipeline. When the softening filter 5 is washed with the water in the raw water tank 1, the first valve 37, the fourth valve 42, the fifth valve 43, the sixth valve 45, the ninth valve 50, the tenth valve 51, the eleventh valve 53, the thirteenth valve 55 and the fourteenth valve 58 are closed, the second valve 38, the third valve 39, the seventh valve 46, the eighth valve 47, the twelfth valve 54 and the fifteenth valve 59 are opened, the water in the raw water tank 1 sequentially enters the water inlet of the mechanical filter 3 through the first pipe 15 and the second pipe 16, flows out of the water outlet of the mechanical filter 3 and enters the water inlet of the activated carbon filter 4 through the third pipe 17 under the action of the raw water pump 2, flows out of the water outlet of the activated carbon filter 4 and enters the water inlet of the softening filter 5 through the fourth pipe 18, and is discharged from the water outlet of the softening filter 5, and sequentially passes through the fifth pipe 19, the sixth pipe 19, the eighth pipe 17 and the tenth pipe 51, the eleventh valve 53 and the fourteenth valve 58, and the tenth valve 58, and the eleventh valve 16 and the tenth valve 16, The twenty-ninth pipe 57, the twenty-eighth pipe 56, the twenty-fifth pipe 48 and the twenty-second pipe 40 enter the water inlet of the clarifier 32, at which time the normal washing of the softening filter 5 is completed. When the softening filter 5 is backwashed by using the water in the raw water tank 1, the first valve 37, the fourth valve 42, the fifth valve 43, the sixth valve 45, the ninth valve 50, the tenth valve 51, the twelfth valve 54, the thirteenth valve 55 and the fifteenth valve 59 are closed, the second valve 38, the third valve 39, the seventh valve 46, the eighth valve 47, the eleventh valve 53 and the fourteenth valve 58 are opened, under the action of the raw water pump 2, the water in the raw water tank 1 sequentially enters the water inlet of the mechanical filter 3 through the first pipeline 15 and the second pipeline 16, then is discharged from the water outlet of the mechanical filter 3 and enters the water inlet of the activated carbon filter 4 through the third pipeline 17, then is discharged from the water outlet of the activated carbon filter 4, and then sequentially enters the water outlet of the softening filter 5 through the fourth pipeline 18, the twenty-seventh pipeline 52 and the fifth pipeline 19, the water is then discharged from the inlet of the softening filter 5 and enters the clarifier 32 via the fourth conduit 18, the twenty-eighth conduit 56, the twenty-fifth conduit 48 and the twenty-second conduit 40 in that order, at which point backwashing of the softening filter 5 is completed. After the water after the forward washing and the backwashing flows to the clarifier 32, PAC and PAM can be added into the clarifier 32, so that after impurities in the forward washing water and the backwashing water are adsorbed, flocculated and precipitated, supernatant in the clarifier 32 can be utilized to perform forward washing and backwashing on the mechanical filter 3, the activated carbon filter 4 and the softening filter 5, and the utilization rate of the water is further improved.

The pure water treatment system further comprises a flushing pump 60, a water outlet of the clarifier 32 is connected with a water inlet of the flushing pump 60 through a thirtieth pipeline 61, a water outlet of the flushing pump 60 is connected with the second pipeline 16 through a thirty-first pipeline 62, the thirty-first pipeline 62 is connected with the second pipeline 16 through a three-way joint, a first check valve 63 is further arranged on the second pipeline 16, the connecting position of the thirty-first pipeline 62 and the second pipeline 16 is located between the connecting position of the twenty-first pipeline 36 and the second pipeline 16 and the first check valve 63, and a second check valve 64 is arranged on the thirty-first pipeline 62. When the water in the clarifier 32 is mixed water of the first-stage concentrated water, the forward washing backwash water of the mechanical filter 3, the forward washing backwash water of the activated carbon filter 4 and the forward washing backwash water of the softening filter 5, when the water in the clarifier 32 is used for forward washing the mechanical filter 3, the first valve 37, the third valve 39 and the fourth valve 42 are closed, the second valve 38 and the fifth valve 43 are opened, and under the action of the flushing pump 60, the water in the clarifier 32 sequentially enters the water inlet of the mechanical filter 3 through the thirtieth pipeline 61, the thirty-first pipeline 62 and the second pipeline 16, then is discharged from the water outlet of the mechanical filter 3, and then sequentially enters the water inlet of the clarifier 32 through the third pipeline 17, the twenty-third pipeline 41 and the twenty-second pipeline 40, and at this time, the forward washing of the mechanical filter 3 is completed. When the mechanical filter 3 is backwashed by using the water in the clarifier 32, the second valve 38, the third valve 39 and the fifth valve 43 are closed, the first valve 37 and the fourth valve 42 are opened, and under the action of the flushing pump 60, the water in the clarifier 32 enters the water outlet of the mechanical filter 3 through the thirtieth pipeline 61, the thirty-first pipeline 62, the second pipeline 16, the twenty-first pipeline 36 and the third pipeline 17 in sequence, is then discharged from the water inlet of the mechanical filter 3, and then enters the water inlet of the clarifier 32 through the second pipeline 16 and the twenty-second pipeline 40 in sequence, and at this time, the backwashing on the mechanical filter 3 is completed.

A thirty-second pipeline 65 and a sixteenth valve 66 are arranged on the thirty-first pipeline 62, one end of the thirty-second pipeline 65 is connected with the thirty-first pipeline 62 through a three-way joint, the other end of the thirty-second pipeline 65 is connected with the third pipeline 17 through a three-way joint, the connecting position of the thirty-second pipeline 65 and the thirty-first pipeline 62 is located between the second check valve 64 and the sixteenth valve 66, and the connecting position of the thirty-second pipeline 65 and the third pipeline 17 is located between the connecting position of the twenty-fourth pipeline 44 and the third pipeline 17 and the third valve 39. When the activated carbon filter 4 is subjected to the forward washing with the water in the clarifier 32, the third valve 39, the fourth valve 42, the fifth valve 43, the sixteenth valve 66, the sixth valve 45, the eighth valve 47 and the ninth valve 50 are closed, the seventh valve 46 and the tenth valve 51 are opened, and under the action of the flushing pump 60, the water in the clarifier 32 sequentially enters the water inlet of the activated carbon filter 4 through the thirtieth pipeline 61, the thirty-eleventh pipeline 62, the thirty-second pipeline 65 and the third pipeline 17, is discharged from the water outlet of the activated carbon filter 4, and then enters the water inlet of the clarifier 32 through the fourth pipeline 18, the twenty-sixth pipeline 49, the twenty-fifth pipeline 48 and the twenty-second pipeline 40, and at this time, the forward washing of the activated carbon filter 4 is completed. When the activated carbon filter 4 is backwashed with water in the clarifier 32, the third valve 39, the fourth valve 42, the fifth valve 43, the sixteenth valve 66, the seventh valve 46, the eighth valve 47, and the tenth valve 51 are closed, the sixth valve 45 and the ninth valve 50 are opened, under the action of the flushing pump, water in the clarifier 32 sequentially enters the water outlet of the activated carbon filter 4 through a thirtieth pipeline 61, a thirty-first pipeline 62, a thirty-second pipeline 65, a third pipeline 17, a twenty-fourth pipeline 44 and a fourth pipeline 18, then discharged through the water inlet of the activated carbon filter 4, and then enters the water inlet of the clarifier 32 through the third pipeline 17, the twenty-fifth pipeline 48 and the twenty-second pipeline 40 in sequence, at this time, the backwashing on the activated carbon filter 4 is completed, and the seventeenth valve 68 needs to be closed when the mechanical filter 3 is subjected to the forward washing and the backwashing.

A thirty-third pipeline 67 and a seventeenth valve 68 are arranged on the thirty-second pipeline 65, one end of the thirty-third pipeline 67 is connected with the thirty-second pipeline 65 through a three-way joint, the other end of the thirty-third pipeline 67 is connected with the fourth pipeline 18 through a three-way joint, the connection position of the thirty-third pipeline 67 and the thirty-second pipeline 65 is located between the connection position of the thirty-second pipeline 65 and the thirty-first pipeline 62 and the seventeenth valve 68, the connection position of the thirty-third pipeline 67 and the fourth pipeline 18 is located between the connection position of the twenty-seventh pipeline 52 and the fourth pipeline 18 and the eighth valve 47, and an eighteenth valve 69 is arranged on the thirty-third pipeline 67. When the softening filter 5 is subjected to the normal washing with the water in the clarifier 32, the third valve 39, the fourth valve 42, the fifth valve 43, the eighth valve 47, the ninth valve 50, the tenth valve 51, the sixteenth valve 66, the seventeenth valve 68, the eleventh valve 53, the thirteenth valve 55, and the fourteenth valve 58 are closed, the twelfth valve 54 and the fifteenth valve 59 are opened, under the action of the flushing pump, the water in the clarifier 32 enters the water inlet of the softening filter 5 through the thirtieth pipeline 61, the thirty-first pipeline 62, the thirty-second pipeline 65, the thirty-third pipeline 67 and the fourth pipeline 18 in sequence, then discharged from the water outlet of the softening filter 5 and then sequentially flowed into the water inlet of the clarifier 32 through the fifth pipe 19, the twenty-ninth pipe 57, the twenty-eighth pipe 56, the twenty-fifth pipe 48, and the twenty-second pipe 40, at which time the normal washing of the softening filter 5 is completed. When the softening filter 5 is backwashed with water in the clarifier 32, the third valve 39, the fourth valve 42, the fifth valve 43, the eighth valve 47, the ninth valve 50, the tenth valve 51, the sixteenth valve 66, the seventeenth valve 68, the twelfth valve 54, the thirteenth valve 55 and the fifteenth valve 59 are closed, the eleventh valve 53 and the fourteenth valve 58 are opened, under the action of the flushing pump, water in the clarifier 32 sequentially enters the water outlet of the softening filter 5 through a thirtieth pipeline 61, a thirty-first pipeline 62, a thirty-second pipeline 65, a thirty-third pipeline 67, a fourth pipeline 18, a twenty-seventh pipeline 52 and a fifth pipeline 19, then discharged through the water inlet of the softening filter 5, and then enters the clarifier 32 through the fourth pipeline 18, the twenty-eighth pipeline 56, the twenty-fifth pipeline 48 and the twenty-second pipeline 40 in sequence, thus completing the backwashing of the softening filter 5. The seventeenth valve 68 and the eighteenth valve 69 need to be closed when the mechanical filter 3 is subjected to the forward washing and the reverse washing, and the eighteenth valve 69 needs to be closed when the activated carbon filter 4 is cleaned.

When the high-utilization-rate pure water treatment system is used for preparing ultrapure water, a raw water pump 2 pumps water in a raw water tank 1 into a mechanical filter 3, then the water sequentially passes through an activated carbon filter 4, a softening filter 5 and a security filter 6 and then enters a first-stage high-pressure pump 7, the water is pressurized by the first-stage high-pressure pump 7 and then enters a first-stage RO reverse osmosis device 8, a part of first-stage concentrated water in the first-stage RO reverse osmosis device 8 flows into the raw water tank 1, a part of the first-stage concentrated water enters a clarifier 32, and first-stage pure water of the first-stage RO reverse osmosis device 8 enters an intermediate water tank 9 from a pure water outlet of the first-stage RO reverse osmosis device 8. The water in the intermediate water tank 9 is pressurized by the second-stage high-pressure pump 10 and then pumped into the second-stage RO reverse osmosis device 11, the second-stage concentrated water in the second-stage RO reverse osmosis device 11 is discharged from a concentrated water outlet of the second-stage RO reverse osmosis device 11 and enters the raw water tank 1 through a seventeenth pipeline 31, the second-stage pure water in the second-stage RO reverse osmosis device 11 is discharged from a pure water outlet of the second-stage RO reverse osmosis device 11, most of the second-stage concentrated water enters a pure water inlet of the ED I device 12, a small part of the second-stage concentrated water enters a concentrated water inlet of the ED I device 12, ultrapure water generated after being treated by the ED I device 12 enters the ultrapure water tank 13 through a pure water outlet of the ED I device 12, and the ED I concentrated water in the ED I device 12 enters the intermediate water tank 9 through a concentrated water outlet of the ED I device 12 and a sixteenth pipeline 30. When the purity of pure water in the ultrapure water tank 13 is not satisfactory, the pure water in the ultrapure water tank 13 is discharged without stopping the whole pure water treatment system, the water in the ultrapure water tank 13 can be pumped into the intermediate water tank 9 by the circulation pump 14, the water in the intermediate water tank 9 is pressurized by the secondary high-pressure pump 10 and then enters the secondary RO reverse osmosis device 11, the water flowing out of the pure water outlet of the secondary RO reverse osmosis device 11 enters the ED I device 12, the water flowing out of the pure water outlet of the ED I device 12 enters the ultrapure water tank 13, and the unsatisfactory pure water in the ultrapure water tank 13 passes through multiple cycles among the ultrapure water tank 13, the intermediate water tank 9, the secondary RO reverse osmosis device 11, and the ED I device 12, and then the satisfactory pure water can be obtained in the ultrapure water tank 13. Damage to the ED I device 12 due to restart can be reduced without stopping the pure water treatment system. The high-utilization-rate pure water treatment system can reasonably utilize pre-treated cleaning water (namely the forward-washing backwashing water of the mechanical filter 3, the forward-washing backwashing water of the activated carbon filter 4 and the forward-washing backwashing water of the softening filter 5), primary concentrated water (namely the concentrated water generated by the primary RO reverse osmosis device 8), secondary concentrated water (namely the concentrated water generated by the secondary RO reverse osmosis device 11), ED I concentrated water (namely the concentrated water generated in the ED I device 12) and ultrapure water with unqualified purity, does not directly discharge the water serving as the waste water, can improve the utilization rate of tap water, saves water resources and reduces the cost for manufacturing the ultrapure water.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.

Claims

1. The utility model provides a high usage pure water processing system which characterized in that: the water purifier comprises a raw water tank, a raw water pump, a mechanical filter, an activated carbon filter, a softening filter, a security filter, a first-stage high-pressure pump, a first-stage RO reverse osmosis device, a middle water tank, a second-stage high-pressure pump, a second-stage RO reverse osmosis device, an EDI device, a ultrapure water tank and a circulating pump, wherein a water outlet of the raw water tank is connected with a water inlet of the raw water pump through a first pipeline, a water outlet of the raw water pump is connected with a water inlet of the mechanical filter through a second pipeline, a water outlet of the mechanical filter is connected with a water inlet of the activated carbon filter through a third pipeline, a water outlet of the activated carbon filter is connected with a water inlet of the softening filter through a fourth pipeline, a water outlet of the softening filter is connected with a water inlet of the security filter through a fifth pipeline, a water outlet of the security filter is connected with a water inlet of the first-stage high-pressure pump through a sixth pipeline, a water outlet of the first-stage high-pressure pump is connected with a water inlet of the first-stage RO reverse osmosis filter through a seventh pipeline, the pure water outlet of the first-level RO reverse osmosis device is connected with the water inlet of the middle water tank through an eighth pipeline, the water outlet of the middle water tank is connected with the water inlet of the second-level high-pressure pump through a ninth pipeline, the water outlet of the second-level high-pressure pump is connected with the water inlet of the second-level RO reverse osmosis device through a tenth pipeline, the pure water outlet of the second-level RO reverse osmosis device is connected with the pure water cavity inlet of the EDI device through an eleventh pipeline, the eleventh pipeline is connected with a twelfth pipeline, the twelfth pipeline is connected with the concentrated water cavity inlet of the EDI device, the pure water outlet of the EDI device is connected with the water inlet of the super pure water tank through a thirteenth pipeline, the water outlet of the super pure water tank is connected with the water inlet of the circulating pump through a fourteenth pipeline, and the water outlet of the circulating pump is connected with the water inlet of the middle water tank through a fifteenth pipeline.

2. The high-utilization-rate pure water treatment system according to claim 1, wherein: and a concentrated water outlet of the EDI device is connected with a water inlet of the middle water tank through a sixteenth pipeline.

3. The high-utilization-rate pure water treatment system according to claim 1, wherein: and a concentrated water outlet of the second-stage RO reverse osmosis device is connected with a water inlet of the raw water tank through a seventeenth pipeline.

4. The high-utilization-rate pure water treatment system according to claim 1, wherein: the pure water treatment system further comprises a clarifier, a concentrated water outlet of the first-level RO reverse osmosis device is connected with an eighteenth pipeline, the eighteenth pipeline is connected with a nineteenth pipeline and a twentieth pipeline, the nineteenth pipeline is connected with a water inlet of the raw water tank, and the twentieth pipeline is connected with a water inlet of the clarifier.

5. The high-utilization-rate pure water treatment system according to claim 4, wherein: a twenty-first pipeline is connected between the second pipeline and the third pipeline, a first valve is arranged on the twenty-first pipeline, a second valve is arranged on the second pipeline, the second valve is positioned between the connection position of the twenty-first pipeline and the second pipeline and the water inlet of the mechanical filter, a third valve is arranged on the third pipeline, the third valve is positioned between the connection position of the twenty-first pipeline and the third pipeline and the water inlet of the activated carbon filter, a twenty-second pipeline is connected on the second pipeline, one end of the twenty-second pipeline is connected with the second pipeline, the other end of the twenty-second pipeline is connected with the water inlet of the clarifier, the connection position of the twenty-second pipeline and the second pipeline is positioned between the second valve and the inlet of the mechanical filter, a twenty-third pipeline is connected on the third pipeline, one end of the twenty-third pipeline is connected with the third pipeline, the twenty-second pipeline is connected to the other end of the twenty-third pipeline, the connection position of the twenty-third pipeline and the third pipeline is located between the connection position of the twenty-first pipeline and the third pipeline and the water outlet of the mechanical filter, a fourth valve is arranged on the twenty-second pipeline, the fourth valve is located between the connection position of the twenty-second pipeline and the connection position of the twenty-third pipeline and the twenty-second pipeline, and a fifth valve is arranged on the twenty-third pipeline.

6. The high-utilization-rate pure water treatment system according to claim 5, wherein: a twenty-fourth pipeline is connected between the third pipeline and the fourth pipeline, a sixth valve is arranged on the twenty-fourth pipeline, a seventh valve is arranged on the third pipeline, the seventh valve is positioned between the connection position of the twenty-fourth pipeline and the third pipeline and the water inlet of the activated carbon filter, the third valve is positioned between the connection position of the twenty-first pipeline and the third pipeline and the connection position of the twenty-fourth pipeline and the third pipeline, an eighth valve is arranged on the fourth pipeline, the eighth valve is positioned between the connection position of the twenty-fourth pipeline and the water inlet of the softening filter, a twenty-fifth pipeline is connected on the third pipeline, one end of the twenty-fifth pipeline is connected with the third pipeline, the other end of the twenty-fifth pipeline is communicated with the water inlet of the clarifier, the connection position of the twenty-fifth pipeline and the third pipeline is positioned between the seventh valve and the inlet of the activated carbon filter, the device comprises a fourth pipeline, a twenty-sixth pipeline, a fourth pipeline and an activated carbon filter, wherein the fourth pipeline is connected to one end of the twenty-sixth pipeline, the twenty-fifth pipeline is connected to the other end of the twenty-sixth pipeline, the twenty-sixth pipeline and the fourth pipeline are located between the connecting position of the twenty-fourth pipeline and the connecting position of the fourth pipeline and the water outlet of the activated carbon filter, a ninth valve is arranged on the twenty-fifth pipeline and located between the connecting position of the twenty-fifth pipeline and the third pipeline and the connecting position of the twenty-sixth pipeline and the twenty-fifth pipeline, and a tenth valve is arranged on the twenty-sixth pipeline.

7. The high-utilization-rate pure water treatment system according to claim 6, wherein: a twenty-seventh pipeline is connected between the fourth pipeline and the fifth pipeline, an eleventh valve is arranged on the twenty-seventh pipeline, a twelfth valve is arranged on the fourth pipeline, the twelfth valve is positioned between the connection position of the twenty-seventh pipeline and the fourth pipeline and the water inlet of the softening filter, the eighth valve is positioned between the connection position of the twenty-fourth pipeline and the connection position of the twenty-seventh pipeline and the fourth pipeline, a thirteenth valve is arranged on the fifth pipeline, the thirteenth valve is positioned between the connection position of the twenty-seventh pipeline and the fifth pipeline and the water inlet of the security filter, a twenty-eighth pipeline is connected on the fourth pipeline, one end of the twenty-eighth pipeline is connected with the fourth pipeline, the other end of the twenty-eighth pipeline is communicated with the water inlet of the clarifier, and the connection position of the twenty-eighth pipeline and the fourth pipeline is positioned between the twelfth valve and the inlet of the softening filter, the utility model discloses a filter, including the twenty-eighth pipeline, be connected with the twenty-ninth pipeline on the fifth pipeline, the fifth pipeline is connected to the one end of twenty-ninth pipeline, the twenty-eighth pipeline is connected to the other end of twenty-ninth pipeline, the hookup location of twenty-ninth pipeline and fifth pipeline is located between the hookup location of twenty-seventh pipeline and fifth pipeline and the delivery port of softening the filter, be equipped with the fourteenth valve on the twenty-eighth pipeline, the fourteenth valve is located between the hookup location of twenty-eighth pipeline and fourth pipeline and the hookup location of twenty-ninth pipeline and twenty-eighth pipeline, be equipped with the fifteenth valve on the twenty-ninth pipeline.

8. The high-utilization-rate pure water treatment system according to claim 7, wherein: the pure water treatment system still includes the flush pump, the delivery port of clarifier passes through the thirtieth pipeline and links to each other with the water inlet of flush pump, the delivery port of flush pump passes through the thirty-first pipeline and links to each other with the second pipeline, still be equipped with first check valve on the second pipeline, the hookup location of thirty-first pipeline and second pipeline is located between hookup location and the first check valve of twenty-first pipeline and second pipeline, be equipped with the second check valve on the thirty-first pipeline.

9. The high-utilization-rate pure water processing system according to claim 8, wherein: the thirty-second pipeline and the sixteenth valve are arranged on the thirty-first pipeline, one end of the thirty-second pipeline is connected with the thirty-first pipeline, the other end of the thirty-second pipeline is connected with the third pipeline, the connecting position of the thirty-second pipeline and the thirty-first pipeline is located between the second check valve and the sixteenth valve, and the connecting position of the thirty-second pipeline and the third pipeline is located between the connecting position of the twenty-fourth pipeline and the third valve.

10. The high-utilization-rate pure water treatment system according to claim 9, wherein: the thirty-third pipeline and the seventeenth valve are arranged on the thirty-second pipeline, one end of the thirty-third pipeline is connected with the thirty-second pipeline, the other end of the thirty-third pipeline is connected with the fourth pipeline, the connecting position of the thirty-third pipeline and the thirty-second pipeline is located between the connecting position of the thirty-second pipeline and the thirty-first pipeline and the seventeenth valve, and the connecting position of the thirty-third pipeline and the fourth pipeline is located between the connecting position of the twenty-seventh pipeline and the fourth pipeline and the eighth valve.