Online monitoring device for injection water system

Abstract

The utility model relates to the technical field of water quality detection, in particular to an on-line monitoring device for an injection water system. Comprising an injection water storage tank, a distillation machine, a multi-channel adjusting mechanism and a waterway circulation structure, the injection water storage tank is communicated with a first buffer pipe, and the first buffer pipe is communicated with a third return pipe; the multi-channel adjusting mechanism comprises a circular shell, a rotating disc and a power assembly installed on the circular shell and used for driving the rotating disc to rotate. The waterway circulating mechanism comprises a water pump, a water pipeline and a backflow pipeline; a distilled water output pipe is connected between the output end of the distilling machine and the circular shell, and a first return pipe is communicated with the distilled water output pipe. According to the technical scheme, unified monitoring of the backflow water and the distilled water can be achieved by arranging the single detection device, the equipment cost and the monitoring cost are reduced, and the water quality of the backflow water path and the distilled water path can be independently detected.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, and in particular to an online monitoring device for a water for injection system. Background Technology

[0002] Water for injection is the most important and basic excipient in pharmaceutical production. If the water is substandard during the preparation, production and use of water for injection, it will directly affect the quality of the product.

[0003] Patent CN205750565U discloses an online monitoring and automatic discharge system for water for injection, including a distillation water machine, a circulation pipeline, and online monitoring equipment. The distillation water machine is connected to the circulation pipeline through a water for injection tank. Online monitoring equipment is installed between the water for injection tank, the distillation water machine, and the circulation pipeline. A three-way solenoid valve is installed between the online monitoring equipment and the water for injection tank. The three-way solenoid valve is connected to the drain pipeline. The online monitoring equipment and the three-way solenoid valve are connected to a processor. The processor is connected to a display via a wireless transceiver.

[0004] The aforementioned patents still have the following technical defects: two sets of detection instruments (water quality monitor, conductivity detector and temperature sensor) are required for real-time monitoring, which increases the monitoring cost. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing an online monitoring device for a water for injection system.

[0006] The technical solution of this utility model is an online monitoring device for a water for injection system, comprising:

[0007] A water storage tank for injection is provided with a first buffer tube connected to it. A detection device and a fifth solenoid valve are installed on the first buffer tube. A third reflux tube is connected to the first buffer tube. A sixth solenoid valve is installed on the third reflux tube.

[0008] The multi-channel adjustment mechanism includes a circular housing, a turntable, and a power component mounted on the circular housing for driving the turntable to rotate. The circular housing is located at the upper end of the first buffer tube, and the bottom of the circular housing is provided with a first drain hole and a second drain hole that communicate with the first buffer tube. The turntable is rotatably mounted on the inner side of the circular housing, and the turntable is provided with a first through hole and a second through hole.

[0009] The water circulation structure includes a water pump, a water supply pipe, and a return pipe. The input end of the water pump is connected to the inside of the water for injection storage tank, and its output end is connected to the water supply pipe. The return pipe is connected to the water supply pipe, and the other end of the return pipe is connected to the inside of the circular shell. A second return pipe is connected to the return pipe, and a third solenoid valve and a fourth solenoid valve are respectively installed on the return pipe and the second return pipe.

[0010] The distillation machine has a distilled water output pipe connected between its output end and the circular housing. A first reflux pipe is connected to the distilled water output pipe. A first solenoid valve and a second solenoid valve are respectively installed on the distilled water output pipe and the first reflux pipe.

[0011] Preferably, a second buffer pipe is installed on the return pipe, the diameter of the second buffer pipe is larger than the diameter of the return pipe, and the return pipe is connected to the second buffer pipe.

[0012] Preferably, the power assembly includes a servo motor, a gear, and a gear ring. The servo motor is mounted on the outer periphery of the circular housing, the gear is mounted on the output shaft of the servo motor, and the gear ring is mounted on the outer periphery of the turntable, with the gear ring meshing with the gear ring. A side hole is provided on the circular housing for the gear to pass through.

[0013] Preferably, the output end of the distilled water output pipe and the output end of the return pipe are vertically aligned with the first drain hole and the second drain hole, respectively.

[0014] Preferably, the detection device includes a water quality monitor, a conductivity meter, and a temperature sensor.

[0015] Preferably, it also includes a reflux chamber, and the distilled water output pipe, the second reflux pipe and the third reflux pipe are all connected to the interior of the reflux chamber.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: the present invention can realize the unified monitoring of reflux water and distilled water by setting a single detection device, which reduces equipment cost and monitoring cost, and can also detect the water quality of reflux water path and distilled water path separately. Attached Figure Description

[0017] Figure 1 and Figure 2 All of these are schematic diagrams of the structure of this utility model.

[0018] Figure 3 This is a cross-sectional view of the circular shell in this utility model.

[0019] Reference numerals: 1. Water for injection storage tank; 2. Distillation machine; 3. Reflux chamber; 4. Water pump; 5. Distilled water output pipe; 6. Water pipe; 7. Reflux pipe; 8. First buffer pipe; 9. Second buffer pipe; 10. First reflux pipe; 11. Second reflux pipe; 12. Third reflux pipe; 13. Detection device; 14. Circular shell; 141. First drain hole; 142. Second drain hole; 143. Side hole; 151. First solenoid valve; 152. Second solenoid valve; 153. Third solenoid valve; 154. Fourth solenoid valve; 155. Fifth solenoid valve; 156. Sixth solenoid valve; 16. Turntable; 161. First through hole; 162. Second through hole; 17. Servo motor; 18. Gear; 19. Gear ring. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-3 As shown in the figure, the online monitoring device for a water for injection system proposed in this embodiment includes a water for injection storage tank 1, a distillation machine 2, a multi-channel regulating mechanism, and a water circulation structure.

[0022] A first buffer pipe 8 is connected to the water storage tank 1 for injection. A detection device 13 and a fifth solenoid valve 155 are installed on the first buffer pipe 8. The detection device 13 includes a water quality monitor, a conductivity detector and a temperature sensor. A third reflux pipe 12 is connected to the first buffer pipe 8. A sixth solenoid valve 156 is installed on the third reflux pipe 12.

[0023] The multi-channel regulating mechanism includes a circular housing 14, a turntable 16, and a power assembly mounted on the circular housing 14 for driving the turntable 16 to rotate. The circular housing 14 is located at the upper end of the first buffer tube 8. The bottom of the circular housing 14 has a first drain hole 141 and a second drain hole 142 communicating with the first buffer tube 8. The turntable 16 is rotatably mounted inside the circular housing 14. The turntable 16 has a first through hole 161 and a second through hole 162. When the first through hole 161 and the second through hole 162 are respectively connected to the distilled water output pipe 5 and the return pipe 7, water can be discharged synchronously from both the distilled water output pipe 5 and the return pipe 7. When the turntable 16 is driven to rotate so that the first through hole 161 is connected to the return pipe 7, only the return pipe 7 discharges water. When the second through hole 161 is driven to rotate, water is discharged from the return pipe 7. When the through hole 162 is connected to the distilled water output pipe 5, only the distilled water output pipe 5 outputs water. When the drive turntable 16 rotates 180 degrees, both the distilled water output pipe 5 and the return pipe 7 are in a closed state. In summary, multiple path states can be adjusted through the multi-path adjustment mechanism. Furthermore, in order to improve the sealing between the turntable 16 and the circular housing 14, sealing plates are installed at both the upper and lower ends of the turntable 16. The power assembly includes a servo motor 17, a gear 18, and a gear ring 19. The servo motor 17 is installed on the outer periphery of the circular housing 14, the gear 18 is installed on the output shaft of the servo motor 17, and the gear ring 19 is installed on the outer periphery of the turntable 16, and the gear ring 19 is meshed with the gear ring 19. A side hole 143 is provided on the circular housing 14 for the gear 18 to pass through.

[0024] The water circulation mechanism includes a water pump 4, a water supply pipe 6, and a return pipe 7. The input end of the water pump 4 is connected to the inside of the water for injection storage tank 1, and its output end is connected to the water supply pipe 6. The return pipe 7 is connected to the water supply pipe 6, and the other end of the return pipe 7 is connected to the inside of the circular shell 14. A second return pipe 11 is connected to the return pipe 7, and a third solenoid valve 153 and a fourth solenoid valve 154 are respectively installed on the return pipe 7 and the second return pipe 11.

[0025] A distillation water output pipe 5 is connected between the output end of the distillation machine 2 and the circular housing 14. A first reflux pipe 10 is connected to the distillation water output pipe 5. A first solenoid valve 151 and a second solenoid valve 152 are respectively installed on the distillation water output pipe 5 and the first reflux pipe 10. The output end of the distillation water output pipe 5 and the output end of the reflux pipe 7 are vertically aligned with the first drain hole 141 and the second drain hole 142, respectively.

[0026] The online monitoring device for the water for injection system also includes a reflux tank 3. The distilled water output pipe 5, the second reflux pipe 11, and the third reflux pipe 12 are all connected to the inside of the reflux tank 3. The reflux tank 3 is set up to collect substandard water and avoid waste.

[0027] Specifically, the distillation unit 2 should be positioned above the water-for-injection storage tank 1, allowing the distilled water produced by the distillation unit 2 to flow smoothly into the water-for-injection storage tank 1 through the distilled water output pipe 5. The water pump 4 operates to transport the water-for-injection from the water-for-injection storage tank 1 to the water supply pipe 6. Multiple valves are installed on the water supply pipe 6 for discharging the water-for-injection, and excess water-for-injection is returned to the water-for-injection storage tank 1 through the return pipe 7. The returned water and the water produced by the distillation unit 2 converge into the first buffer pipe 8. Initially, the first solenoid valve 151, the third solenoid valve 153, and the fifth solenoid valve... Solenoid valve 155 is in the open state, while the second solenoid valve 152, the fourth solenoid valve 154, and the sixth solenoid valve 156 are all in the closed state. The first through-hole 161 and the second through-hole 162 are respectively connected to the distilled water output pipe 5 and the return pipe 7. The detection device 13 installed on the first buffer pipe 8 can collect the mixed water for detection and convert the detected data into an electrical signal, which is then transmitted to the computer. After analysis and processing by the computer, it is determined whether the water quality is qualified. If qualified, no operation is performed, and the mixed water flows directly into the injection water storage tank 1. If unqualified, the computer controls the fifth solenoid valve 156 through the PLC controller electrically connected to it. Solenoid valve 155 is closed to prevent substandard water from flowing into the water-for-injection storage tank 1, and the sixth solenoid valve 156 is opened to allow substandard water inside the first buffer tube 8 to be discharged through the third return tube 12. Simultaneously, it is necessary to detect which water path has a problem. First, the water inside the return tube 7 is tested (the water produced by the distillation machine 2 can also be tested first; the testing order is not mandatory). The first solenoid valve 151 is closed, and the turntable 16 is driven to rotate via the power component, so that only the first through hole 161 is connected to the return tube 7, allowing only return water to enter the inside of the first buffer tube 8. If the test is passed, it proves that the water has passed. If the water output from the distilled water output pipe 5 is substandard, no further testing is required. If the test fails, it cannot be determined whether the water output from the distilled water output pipe 5 is qualified. Therefore, the water in the distilled water output pipe 5 needs to be tested separately again. During the test, the third solenoid valve 153 is closed, the turntable 16 is driven to rotate again, the first solenoid valve 151 is opened, and the turntable 16 is driven to rotate again so that only the second through hole 162 is connected to the distilled water output pipe 5. At this time, only the water inside the distilled water output pipe 5 flows into the first buffer pipe 8 for testing. The water inside the distilled water output pipe 5 is then tested again by the installed testing device 13.

[0028] In summary, this technical solution achieves unified monitoring of reflux water and distilled water by setting up a single detection device 13, which reduces equipment and monitoring costs, and can also detect the water quality of the reflux water path and the distilled water path separately.

[0029] Example 2

[0030] like Figure 1 As shown in this embodiment, an online monitoring device for a water for injection system is proposed. Compared with Embodiment 1, in this embodiment, a second buffer pipe 9 is installed on the return pipe 7. The diameter of the second buffer pipe 9 is larger than that of the return pipe 7, and the return pipe 7 is connected to the second buffer pipe 9. In this embodiment, when detecting the water inside the distilled water output pipe 5, since the return pipe 7 continuously outputs water, the larger diameter of the second buffer pipe 9 can buffer a certain amount of return water, thus avoiding excessive internal pressure in the return pipe 7 during the closing of the third solenoid valve 153.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An online monitoring device for a water for injection system, characterized in that, include: A water storage tank (1) for water for injection is provided with a first buffer tube (8) connected to the water storage tank (1). A detection device (13) and a fifth solenoid valve (155) are installed on the first buffer tube (8). A third reflux tube (12) is connected to the first buffer tube (8). A sixth solenoid valve (156) is installed on the third reflux tube (12). The multi-path adjustment mechanism includes a circular housing (14), a turntable (16), and a power assembly mounted on the circular housing (14) for driving the turntable (16) to rotate. The circular housing (14) is located at the upper end of the first buffer tube (8). The bottom of the circular housing (14) is provided with a first drain hole (141) and a second drain hole (142) communicating with the first buffer tube (8). The turntable (16) is rotatably mounted on the inner side of the circular housing (14). The turntable (16) is provided with a first through hole (161) and a second through hole (162). The water circulation structure includes a water pump (4), a water pipe (6), and a return pipe (7). The input end of the water pump (4) is connected to the inside of the water for injection storage tank (1), and its output end is connected to the water pipe (6). The return pipe (7) is connected to the water pipe (6), and the other end of the return pipe (7) is connected to the inside of the circular shell (14). A second return pipe (11) is connected to the return pipe (7), and a third solenoid valve (153) and a fourth solenoid valve (154) are respectively installed on the return pipe (7) and the second return pipe (11). A distillation machine (2) is connected to a distillation water output pipe (5) between the output end of the distillation machine (2) and the circular shell (14). A first reflux pipe (10) is connected to the distillation water output pipe (5). A first solenoid valve (151) and a second solenoid valve (152) are respectively installed on the distillation water output pipe (5) and the first reflux pipe (10).

2. The online monitoring device for a water for injection system according to claim 1, characterized in that, A second buffer pipe (9) is installed on the return pipe (7). The diameter of the second buffer pipe (9) is larger than that of the return pipe (7). The return pipe (7) is connected to the second buffer pipe (9).

3. The online monitoring device for a water for injection system according to claim 1, characterized in that, The power assembly includes a servo motor (17), a gear (18), and a gear ring (19). The servo motor (17) is mounted on the outer periphery of the circular housing (14), the gear (18) is mounted on the output shaft of the servo motor (17), and the gear ring (19) is mounted on the outer periphery of the turntable (16), and the gear ring (19) meshes with the gear ring (19). A side hole (143) is provided on the circular housing (14) for the gear (18) to pass through.

4. The online monitoring device for a water for injection system according to claim 1, characterized in that, The output end of the distilled water output pipe (5) and the output end of the return pipe (7) are vertically aligned with the first drain hole (141) and the second drain hole (142), respectively.

5. The online monitoring device for a water for injection system according to claim 1, characterized in that, The detection device (13) includes a water quality monitor, a conductivity detector and a temperature sensor.

6. The online monitoring device for a water for injection system according to claim 1, characterized in that, It also includes a reflux box (3), a distilled water output pipe (5), a second reflux pipe (11) and a third reflux pipe (12), all of which are connected to the interior of the reflux box (3).

Images