Medical water preparation device

Abstract

The utility model relates to a medical water preparation device. Comprising an ultrafiltration membrane assembly, a first-stage reverse osmosis assembly, a second-stage reverse osmosis assembly, a first ultraviolet sterilizer and a second ultraviolet sterilizer which are communicated through a pipeline to prepare medical ultrapure water, an air blower introduces sucked air into a main air supply pipeline, and the main air supply pipeline feeds the air into the ultrafiltration membrane assembly to purge the interior of the ultrafiltration membrane assembly. Air is fed into the air heater to be heated, the heated air sequentially passes through the first high-pressure pump and then enters the first-stage reverse osmosis assembly, the heated air enters the second-stage reverse osmosis assembly through the second high-pressure pump, the first high-pressure pump, the second high-pressure pump, the first-stage reverse osmosis assembly and the second-stage reverse osmosis assembly are subjected to hot blowing, hot air is used for blowing, and the reverse osmosis efficiency is improved. And a small amount of residual ice in the high-pressure pump I and the high-pressure pump II is rapidly melted, so that the device is suitable for unconventional operation performed before starting after the medical water preparation device is stored in a low-temperature special environment, and the module can be started and run within the shortest time.

Description

Technical Field

[0001] The utility model relates to the technical field of medical water preparation, in particular to a medical water preparation device. Background Art

[0002] In recent years, with the rapid development of mobile devices, portable medical equipment for outdoor rescue or field military rescue has also developed rapidly. When rescuing or field military rescue wounded soldiers, clean cleaning water and ultrapure water need to be provided. However, the existing medical water production equipment has the problem of water residue. When encountering cold weather, it cannot guarantee normal operation and cannot provide cleaning water and ultrapure water for field surgery and treatment in time. In addition, the current medical water production equipment has the problem of retained water pollution. Long-term use will cause precipitation and breeding of microorganisms, which seriously affects the water quality of medical pure water and is not conducive to providing clean cleaning water and ultrapure water for field surgery and treatment.

[0003] Therefore, in view of the above problems, the utility model is in urgent need of providing a medical water preparation device. Utility Model Content

[0004] The purpose of the utility model is to provide a medical water preparation device, which solves the problem of water residue in the prior art through the structural design of the medical water preparation device. However, the existing medical water preparation equipment cannot guarantee normal operation when encountering cold weather, and cannot provide cleaning water and ultrapure water for field surgery and treatment in time.

[0005] The utility model provides a medical water preparation device, comprising an ultrafiltration membrane assembly, the water inlet of the ultrafiltration membrane assembly is connected to a submersible pump through a pipeline 1, the water outlet of the ultrafiltration membrane assembly is connected to a primary reverse osmosis assembly through a pipeline 2, the primary reverse osmosis assembly is connected to a secondary reverse osmosis assembly through a pipeline 3, the pipeline 2 is connected to a first ultraviolet sterilizer through a first discharge pipe, the water outlet of the first ultraviolet sterilizer is connected to a washing water outlet switch through a washing water pipeline, the pipeline 4 is connected to a second ultraviolet sterilizer through a second discharge pipe, and one end of the water outlet of the second ultraviolet sterilizer is connected to a purified water outlet switch through a purified water pipeline;

[0006] The pipeline 1 is connected with a control valve 1, the pipeline 2 is connected with a high-pressure pump 1 and a control valve 2, the pipeline 3 is connected with a high-pressure pump 2 and a control valve 3, the first discharge pipe is equipped with a control valve 4, and the second discharge pipe is equipped with a control valve 5;

[0007] It also includes an air heater and a main air supply pipeline, one end of the main air supply pipeline is connected to the blower, and the other end is connected to pipeline four; it also includes a first branch pipeline connecting pipeline one and the main air supply pipeline, a second branch pipeline connecting the ultrafiltration membrane assembly and the main air supply pipeline, the air inlet of the air heater is connected to the main air supply pipeline through a third branch pipeline, the air outlet of the air heater is connected to pipeline two through a fourth branch pipeline, and the air outlet of the air heater is also connected to pipeline three through a fifth branch pipeline.

[0008] Furthermore, it also includes a bottom purge main line, one end of which is connected to the hot air blower, the bottom purge main line is connected to the bottom of the ultrafiltration membrane assembly through the sixth branch line, the bottom purge main line is connected to pipeline two through the seventh branch line, the bottom purge main line is connected to the first-level reverse osmosis assembly through the eighth branch line, the bottom purge main line is connected to pipeline three through the ninth branch line, the bottom purge main line is connected to the second-level reverse osmosis assembly through the tenth branch line, and the bottom purge main line is connected to pipeline four through the eleventh branch line.

[0009] Furthermore, pipeline three is connected to the primary conductivity meter through pipeline seven, and control valve six is ​​installed on pipeline seven; pipeline four is connected to the secondary conductivity meter through pipeline five, and control valve seven is installed on pipeline five.

[0010] Furthermore, the ultrafiltration membrane assembly includes at least two membrane shells connected in parallel, each membrane shell is equipped with an ultrafiltration membrane element, the water inlet of each membrane shell is connected to pipeline one, and the water outlet of each membrane shell is connected to pipeline two.

[0011] Furthermore, the ultrafiltration membrane element is an internal pressure hollow fiber ultrafiltration membrane element.

[0012] Furthermore, the primary reverse osmosis component includes at least two primary reverse osmosis membrane shells connected in parallel, a primary reverse osmosis membrane is installed in the reverse osmosis membrane shell, the water inlet of the primary reverse osmosis membrane shell is connected to pipeline two; the water outlet of the primary reverse osmosis membrane shell is connected to pipeline three.

[0013] Furthermore, ultraviolet lamps are installed in both the first ultraviolet sterilizer and the second ultraviolet sterilizer.

[0014] Furthermore, it also includes a controller, a first alarm and a second alarm, and a first pressure sensor and a second pressure sensor respectively installed on the first-level reverse osmosis component and the second-level reverse osmosis component; the first pressure sensor is electrically connected to the controller, the first alarm is electrically connected to the controller, the second pressure sensor is electrically connected to the controller, and the second alarm is electrically connected to the controller.

[0015] Furthermore, both the high-pressure pump 1 and the high-pressure pump 2 are 24V DC diaphragm pumps.

[0016] Furthermore, it also includes a display, the primary conductivity meter and the secondary conductivity meter are both electrically connected to the controller, and the display is electrically connected to the controller.

[0017] The medical water preparation device provided by the utility model has the following improvements compared with the prior art:

[0018] 1. The medical water preparation device provided by the utility model has a water source entering the ultrafiltration membrane assembly from pipeline 1, and after filtration, entering the first ultraviolet sterilizer through pipelines 2 and 4. After the filtered water is sterilized, it flows out from the cleaning water outlet switch and is used for hand washing of medical staff in the operating room, preliminary washing of wounds and wound surfaces, washing of medical equipment before disinfection and sterilization, washing of clothes and other non-drinking domestic water; the filtered water through pipeline 2 sequentially enters the primary reverse osmosis assembly and the secondary reverse osmosis assembly to obtain ultrapure water, and the ultrapure water enters the second ultraviolet sterilizer through pipeline 4 and the second discharge pipe. After the ultrapure water is sterilized, it flows out through the purified water pipeline and the purified water outlet switch. The purified water is mainly used for wounds. Deep cleaning, analysis and testing, disinfection and sterilization water for mouth and wound surface, solvents or diluents for preparation of oral and external preparations, etc.; medical cleaning water and purified water can be prepared on-site for field surgery and rescue guarantee system. The raw water can be surface water of Class I to III, groundwater with a dissolved solid (TDS) content of ≤500mg / L, atmospheric precipitation, tap water and other drinking water sources; the utility model adopts ultrafiltration (UF) and ultraviolet sterilization technology to purify raw water into cleaning water, and adopts a two-stage reverse osmosis membrane frame ultraviolet sterilization technology to deeply purify ultrafiltration water into ultrapure water. The two kinds of water can be poured into corresponding containers through pipelines for surgical preparation, surgical cleaning and inspection.

[0019] 2. The medical water preparation device provided by the utility model also includes a blower, and the blower passes the inhaled air into the main air supply pipeline. The main air supply pipeline sends the air into the ultrafiltration membrane group through the second branch pipeline to purge the ultrafiltration membrane group. The air is sent into the air heater through the third branch pipeline to heat the air. The heated air passes through the fourth branch pipeline and the high-pressure pump one in turn and enters the first-level reverse osmosis component. The heated air also enters the second-level reverse osmosis component through the pipeline three and the high-pressure pump two in turn, and the high-pressure pump one, the high-pressure pump two, the first-level reverse osmosis component and the second-level reverse osmosis component are heat-purged. The air heater is started to heat the air, and the hot air is used for purging to quickly melt a small amount of residual ice in the high-pressure pump one and the high-pressure pump two. It is suitable for an unconventional operation performed before the medical water preparation device is started after being stored in a special low-temperature environment, and the purpose is to enable the module to start and run in the shortest time.

[0020] 3. The medical water preparation device provided by the utility model sends hot air into the bottom purge main line through the hot air blower, and the hot air in the bottom purge main line enters from the bottom of the ultrafiltration membrane assembly through the sixth branch line to reversely purge the ultrafiltration membrane assembly, and the hot air in the bottom purge main line enters the second line through the seventh branch line to purge the second line, and the hot air in the bottom purge main line enters from the bottom of the first-level reverse osmosis assembly through the eighth branch line to reversely purge the first-level reverse osmosis assembly, and the hot air in the bottom purge main line enters the third line through the ninth branch line to purge the third line The hot air in the bottom purge main line enters from the bottom of the secondary reverse osmosis component through the tenth branch line to reversely purge the secondary reverse osmosis component. The hot air in the bottom purge main line enters pipeline four through the eleventh branch line to purge pipeline four. The reverse and forward purges are carried out simultaneously to increase the purge rate, and cleaning water and medical purified water are quickly produced on site. The operation is convenient. At the same time, the retained water can be taken away to avoid long-term use, precipitation, and microbial growth, which seriously affect the water quality of medical pure water, and provide clean cleaning water and ultrapure water for field surgery and treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the medical water preparation device described in the utility model;

[0023] Figure 2 It is a structural schematic diagram of the medical water preparation device described in the utility model;

[0024] Figure 3 The present invention is a circuit layout of the medical water preparation device described in the present invention.

[0025] Description of reference numerals:

[0026] 1. Ultrafiltration membrane assembly; 2. Pipeline 1; 3. Submersible pump; 4. Pipeline 2; 5. Primary reverse osmosis assembly; 6. Pipeline 3; 7. Secondary reverse osmosis assembly; 8. Pipeline 4; 9. First UV sterilizer; 10. Cleaning water pipeline; 11. Cleaning water outlet switch; 12. Second discharge pipe; 13. Second UV sterilizer; 14. Purified water pipeline; 15. Purified water outlet switch; 16. Control valve 1; 17. High-pressure pump 1; 18. Control valve 2; 19. High-pressure pump 2; 20. Control valve 3; 21. Control valve 4; 22. Control valve 5; 23. Main air supply pipeline; 24. Blast machine; 25, the first branch pipeline; 26, the second branch pipeline; 27, the air heater; 28, the third branch pipeline; 29, the fourth branch pipeline; 30, the fifth branch pipeline; 31, the bottom purge main pipeline; 32, the hot air blower; 33, the sixth branch pipeline; 34, the seventh branch pipeline; 35, the eighth branch pipeline; 36, the ninth branch pipeline; 37, the tenth branch pipeline; 38, the eleventh branch pipeline; 39, pipeline seven; 40, the primary conductivity meter; 41, the control valve six; 42, pipeline five; 43, the secondary conductivity meter; 44, the control valve seven; 45, the first discharge pipe. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 As shown, a medical water preparation device provided in this embodiment includes an ultrafiltration membrane assembly 1, the water inlet of the ultrafiltration membrane assembly 1 is connected to a submersible pump 3 through a pipeline 1 2, the water outlet of the ultrafiltration membrane assembly 1 is connected to a primary reverse osmosis assembly 5 through a pipeline 2 4, the primary reverse osmosis assembly 5 is connected to a secondary reverse osmosis assembly 7 through a pipeline 3 6, the pipeline 2 4 is connected to a first ultraviolet sterilizer 9 through a first discharge pipe 45, the water outlet of the first ultraviolet sterilizer 9 is connected to a cleaning water outlet switch 11 through a cleaning water pipeline 10, the pipeline 4 8 is connected to a second ultraviolet sterilizer 13 through a second discharge pipe 12, and one end of the water outlet of the second ultraviolet sterilizer 13 is connected to a purified water outlet switch 15 through a purified water pipeline 14; a control valve 16 is connected to the pipeline 1 2, and a high-pressure pump 17 and a high-pressure pump 17 are connected to the pipeline 2 4. The control valve 2 18 and the pipeline 3 6 are connected with the high-pressure pump 2 19 and the control valve 3 20, the second discharge pipe 12 is installed with the control valve 4 21, and the second discharge pipe 12 is installed with the control valve 5 22; it also includes an air heater 27 and a main air supply pipeline 23, one end of the main air supply pipeline 23 is connected with the blower 24, and the other end is connected with the pipeline 4 8; it also includes a first branch pipeline 25 connecting the pipeline 1 2 and the main air supply pipeline 23, and a second branch pipeline 26 connecting the ultrafiltration membrane assembly 1 and the main air supply pipeline 23. The air inlet of the air heater 27 is connected with the main air supply pipeline 23 through the third branch pipeline 28, and the air outlet of the air heater 27 is connected with the pipeline 2 4 through the fourth branch pipeline 29. The air outlet of the air heater 27 is also connected with the pipeline 3 6 through the fifth branch pipeline 30.

[0031] The medical water preparation device provided by the utility model has a water source entering an ultrafiltration membrane component 1 from a pipeline 1 2. After the water is filtered, it enters a first ultraviolet sterilizer 9 through pipelines 2 4 and 4 45. After the filtered water is sterilized, it flows out from a cleaning water outlet switch 11 and is used for hand washing of medical staff in an operating room, preliminary washing of wounds and wound surfaces, washing of medical equipment before disinfection and sterilization, washing of clothes and other non-drinking domestic water. After the filtered water through pipeline 2 4 enters a primary reverse osmosis component 5 and a secondary reverse osmosis component 7 in sequence, ultrapure water is obtained. The ultrapure water enters a second ultraviolet sterilizer 13 through pipeline 4 8 and a second discharge pipe 12. The ultrapure water is then discharged from a second ultraviolet sterilizer 13. After sterilization, the water flows out through the purified water pipeline 14 and the purified water outlet switch 15. The purified water is mainly used for deep cleaning of wounds and wound surfaces, water for analysis and detection, disinfection and sterilization, solvents or diluents for the preparation of oral and external preparations, etc.; the medical water preparation device of the utility model can prepare medical cleaning water and purified water on-site for field surgery and rescue guarantee systems. The raw water can be surface water of Class I to III, groundwater with a dissolved solid (TDS) content of ≤500mg / L, atmospheric precipitation, tap water and other drinking water sources. It is easy to use and can provide cleaning water and ultrapure water for field surgery and rescue in a timely manner.

[0032] The utility model adopts ultrafiltration (UF) and ultraviolet sterilization technology to purify raw water into cleaning water, and adopts two-stage reverse osmosis membrane frame ultraviolet sterilization technology to deeply purify ultrafiltration water into ultrapure water. The two kinds of water can be poured into corresponding containers through pipelines for surgical preparation, surgical cleaning and inspection. The membrane separation integrated technology is adopted to quickly produce cleaning water and medical purified water on site, which is easy to operate and use.

[0033] Furthermore, the utility model also includes a blower, and the blower passes the inhaled air into the main air supply pipeline. The main air supply pipeline sends the air into the ultrafiltration membrane group through the second branch pipeline to purge the ultrafiltration membrane group. The air is sent into the air heater 27 through the third branch pipeline 28 to heat the air. The heated air passes through the fourth branch pipeline 29 and the high-pressure pump 17 in turn and enters the first-level reverse osmosis component 5. The heated air also enters the second-level reverse osmosis component 7 through the pipeline three 6 and the high-pressure pump two 19 in turn, and the high-pressure pump one 17, the high-pressure pump two 19, the first-level reverse osmosis component 5 and the second-level reverse osmosis component 7 are heat-purged. The air heater 27 is started to heat the air. The hot air is used for purging to quickly melt a small amount of residual ice in the high-pressure pump one 17 and the high-pressure pump two 19. It is suitable for an unconventional operation performed before the start of the medical water preparation device after it is stored in a special low-temperature environment. The purpose is to enable the module to start and run in the shortest time.

[0034] like Figure 2 As shown, the present embodiment also includes a bottom purge main line 31, one end of the bottom purge main line 31 is connected to the hot air blower 32, the bottom purge main line 31 is connected to the bottom of the ultrafiltration membrane assembly 1 through the sixth branch line 33, the bottom purge main line 31 is connected to the pipeline two 4 through the seventh branch line 34, the bottom purge main line 31 is connected to the primary reverse osmosis assembly 5 through the eighth branch line 35, the bottom purge main line 31 is connected to the pipeline three 6 through the ninth branch line 36, the bottom purge main line 31 is connected to the secondary reverse osmosis assembly 7 through the tenth branch line 37, and the bottom purge main line 31 is connected to the pipeline four 8 through the eleventh branch line 38.

[0035] Through the design of the above structure, the utility model sends hot air to the bottom purge main line 31 with the hot air blower 32, and the hot air in the bottom purge main line 31 enters from the bottom of the ultrafiltration membrane assembly 1 through the sixth branch line 33, and reversely purges the ultrafiltration membrane assembly. The hot air in the bottom purge main line 31 enters the pipeline 2 4 through the seventh branch line 34, and purges the pipeline 2 4. The hot air in the bottom purge main line 31 enters from the bottom of the first-stage reverse osmosis assembly 5 through the eighth branch line 35, and reversely purges the first-stage reverse osmosis assembly 5. The hot air in the bottom purge main line 31 enters the pipeline 3 6 through the ninth branch line 36, and purges the pipeline 3. 6 for blowing, the hot air in the bottom blowing main line 31 enters from the bottom of the secondary reverse osmosis component 7 through the tenth branch line 37, and reversely cleans the secondary reverse osmosis component 7, and the hot air in the bottom blowing main line 31 enters the pipeline 4 8 through the eleventh branch line 38, and blows the pipeline 4 8, and blows in the reverse and forward directions at the same time to increase the blowing rate, quickly prepare cleaning water and medical purified water on site, and is easy to operate and use; at the same time, it can take away the retained water to avoid long-term use, precipitation, breeding of microorganisms, and serious impact on the water quality of medical pure water, so as to provide clean cleaning water and ultrapure water for field surgery and treatment.

[0036] like Figure 1 As shown, pipeline three 6 of this embodiment is also connected to the primary conductivity meter 40 through pipeline seven 39, and a control valve six 41 is installed on pipeline seven 39; pipeline four 8 is connected to the secondary conductivity meter 43 through pipeline five 42, and a control valve seven 44 is installed on pipeline five 42.

[0037] The utility model is connected to the primary conductivity meter 40 through the pipeline three 6 and the pipeline seven 39, and the pipeline seven 39 is equipped with a control valve six 41; the pipeline four 8 is connected to the secondary conductivity meter 43 through the pipeline five 42, and the pipeline five 42 is equipped with a control valve seven 44. The design can detect the water quality of ultrapure water and ensure the quality of the prepared ultrapure water.

[0038] The ultrafiltration membrane assembly 1 of the utility model comprises at least two membrane shells connected in parallel, each membrane shell is equipped with an ultrafiltration membrane element, the water inlet of each membrane shell is connected to pipeline 1 2, and the water outlet of each membrane shell is connected to pipeline 2 4; the ultrafiltration membrane element is an internal pressure hollow fiber ultrafiltration membrane element.

[0039] The primary reverse osmosis assembly 5 of the utility model comprises at least two primary reverse osmosis membrane shells connected in parallel, a primary reverse osmosis membrane is installed in the reverse osmosis membrane shell, the water inlet of the primary reverse osmosis membrane shell is connected to the second pipeline; the water outlet of the primary reverse osmosis membrane shell is connected to the third pipeline 6.

[0040] The first ultraviolet sterilizer 9 and the second ultraviolet sterilizer 13 of the utility model are both equipped with ultraviolet lamps; the first ultraviolet sterilizer 9 and the second ultraviolet sterilizer 13 both utilize the light of 254-257nm wavelength emitted by the ultraviolet lamps to kill bacteria by destroying the biological structure of microorganisms, and have strong killing power, and can kill harmful bacteria in water in a short time. For example, the first ultraviolet sterilizer 9 and the second ultraviolet sterilizer 13 can adopt the flow-through ultraviolet sterilizer XN-UVC-120W.

[0041] like Figure 3 As shown, the utility model also includes a controller, a first alarm and a second alarm, and a first pressure sensor and a second pressure sensor respectively installed on the first-stage reverse osmosis assembly 5 and the second-stage reverse osmosis assembly 7; the first pressure sensor is electrically connected to the controller, the first alarm is electrically connected to the controller, the second pressure sensor is electrically connected to the controller, and the second alarm is electrically connected to the controller. The first pressure sensor detects the internal pressure of the first-stage reverse osmosis assembly 5, and the second pressure sensor detects the internal pressure of the second-stage reverse osmosis assembly 7. When the pressure is higher than the set standard, a signal is sent to the controller, and the controller controls the corresponding first alarm and the second alarm to alarm respectively to ensure the normal operation of the equipment.

[0042] The high-pressure pump 1 17 and the high-pressure pump 2 19 of the utility model are both 24V DC diaphragm pumps.

[0043] As shown in the figure, this embodiment also includes a display, and the primary conductivity meter 40 and the secondary conductivity meter 43 are both electrically connected to the controller, and the display is electrically connected to the controller; they are used to display the ultrapure water value and realize the detection of water quality.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A medical water preparation device, characterized in that: The invention comprises an ultrafiltration membrane assembly (1), wherein the water inlet of the ultrafiltration membrane assembly (1) is connected to a submersible pump (3) through a pipeline 1 (2), the water outlet of the ultrafiltration membrane assembly (1) is connected to a primary reverse osmosis assembly (5) through a pipeline 2 (4), the primary reverse osmosis assembly (5) is connected to a secondary reverse osmosis assembly (7) through a pipeline 3 (6), the pipeline 2 (4) is connected to a first ultraviolet sterilizer (9) through a first discharge pipe (45), the water outlet of the first ultraviolet sterilizer (9) is connected to a cleaning water outlet switch (11) through a cleaning water pipeline (10), the pipeline 4 (8) is connected to a second ultraviolet sterilizer (13) through a second discharge pipe (12), and one end of the water outlet of the second ultraviolet sterilizer (13) is connected to a purified water outlet switch (15) through a purified water pipeline (14); The pipeline one (2) is connected to a control valve one (16), the pipeline two (4) is connected to a high-pressure pump one (17) and a control valve two (18), the pipeline three (6) is connected to a high-pressure pump two (19) and a control valve three (20), the first discharge pipe (45) is equipped with a control valve four (21), and the second discharge pipe (12) is equipped with a control valve five (22); It also includes an air heater (27) and a main air supply pipeline (23), one end of the main air supply pipeline (23) is connected to the blower (24), and the other end is connected to the pipeline four (8); it also includes a first branch pipeline (25) connecting the pipeline one (2) and the main air supply pipeline (23), and a second branch pipeline (26) connecting the ultrafiltration membrane assembly (1) and the main air supply pipeline (23); the air inlet of the air heater (27) is connected to the main air supply pipeline (23) through a third branch pipeline (28), the air outlet of the air heater (27) is connected to the pipeline two (4) through a fourth branch pipeline (29), and the air outlet of the air heater (27) is also connected to the pipeline three (6) through a fifth branch pipeline (30).

2. The medical water preparation device according to claim 1, characterized in that: The system further comprises a bottom purge main line (31), one end of which is connected to a hot air blower (32), the bottom purge main line (31) being connected to the bottom of the ultrafiltration membrane assembly (1) via a sixth branch line (33), the bottom purge main line (31) being connected to the second line (4) via a seventh branch line (34), the bottom purge main line (31) being connected to the first-stage reverse osmosis assembly (5) via an eighth branch line (35), the bottom purge main line (31) being connected to the third line (6) via a ninth branch line (36), the bottom purge main line (31) being connected to the second-stage reverse osmosis assembly (7) via a tenth branch line (37), and the bottom purge main line (31) being connected to the fourth line (8) via an eleventh branch line (38).

3. The medical water preparation device according to claim 2, characterized in that: The pipeline three (6) is also connected to the primary conductivity meter (40) through the pipeline seven (39), and a control valve six (41) is installed on the pipeline seven (39); the pipeline four (8) is connected to the secondary conductivity meter (43) through the pipeline five (42), and a control valve seven (44) is installed on the pipeline five (42).

4. The medical water preparation device according to claim 3, characterized in that: The ultrafiltration membrane assembly (1) comprises at least two membrane shells connected in parallel, each membrane shell having an ultrafiltration membrane element installed therein, the water inlet of each membrane shell being connected to pipeline one (2), and the water outlet of each membrane shell being connected to pipeline two (4).

5. The medical water preparation device according to claim 4, characterized in that: The ultrafiltration membrane element is an internal pressure hollow fiber ultrafiltration membrane element.

6. The medical water preparation device according to claim 5, characterized in that: The primary reverse osmosis assembly (5) comprises at least two primary reverse osmosis membrane shells connected in parallel, a primary reverse osmosis membrane is installed in the reverse osmosis membrane shell, the water inlet of the primary reverse osmosis membrane shell is connected to pipeline two; the water outlet of the primary reverse osmosis membrane shell is connected to pipeline three (6).

7. The medical water preparation device according to claim 6, characterized in that: Ultraviolet lamp tubes are installed in both the first ultraviolet sterilizer (9) and the second ultraviolet sterilizer (13).

8. The medical water preparation device according to claim 7, characterized in that: It also includes a controller, a first alarm and a second alarm, and a first pressure sensor and a second pressure sensor respectively installed on the first-stage reverse osmosis component (5) and the second-stage reverse osmosis component (7); the first pressure sensor is electrically connected to the controller, the first alarm is electrically connected to the controller, the second pressure sensor is electrically connected to the controller, and the second alarm is electrically connected to the controller.

9. The medical water preparation device according to claim 7, characterized in that: High-pressure pump 1 (17) and high-pressure pump 2 (19) are both 24V DC diaphragm pumps.

10. The medical water preparation device according to claim 9, characterized in that: It also includes a display. The primary conductivity meter (40) and the secondary conductivity meter (43) are both electrically connected to the controller, and the display is electrically connected to the controller.

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