CN113639203A - Dispensing system of injection water for pharmacy - Google Patents
Dispensing system of injection water for pharmacy Download PDFInfo
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- CN113639203A CN113639203A CN202110932909.0A CN202110932909A CN113639203A CN 113639203 A CN113639203 A CN 113639203A CN 202110932909 A CN202110932909 A CN 202110932909A CN 113639203 A CN113639203 A CN 113639203A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 308
- 238000002347 injection Methods 0.000 title claims abstract description 143
- 239000007924 injection Substances 0.000 title claims abstract description 143
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 238000003860 storage Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000005485 electric heating Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 229910021643 water for pharmaceutical use Inorganic materials 0.000 claims 8
- 238000004458 analytical method Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 230000033228 biological regulation Effects 0.000 abstract description 16
- 239000003814 drug Substances 0.000 abstract description 14
- 238000011194 good manufacturing practice Methods 0.000 description 14
- 238000009826 distribution Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 229940079593 drug Drugs 0.000 description 4
- 239000008215 water for injection Substances 0.000 description 4
- 238000007905 drug manufacturing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The application relates to the technical field of pharmacy, in particular to a system for distributing injection water for pharmacy, which comprises a liquid storage tank, a raw water tank, a water inlet pipe, a water outlet pipe, an injection water using point, a water return pipe, a first electric valve and a second electric valve, wherein the lower end of the liquid storage tank is communicated with the water outlet pipe; the water return pipe between the first electric valve and the detection unit is connected with a second electric valve, the other end of the second electric valve is communicated with the raw water tank through a pipeline, the water outlet pipe between the liquid storage tank and the injection water using point is connected with a water inlet pipe, and the detection unit, the first electric valve and the second electric valve are respectively and electrically connected with the controller. The water temperature, the conductivity and the flow rate of the injection water can be monitored in real time, and the water temperature, the conductivity and the flow rate meet the indexes specified by GMP regulations, so that the safety of medicine production is ensured.
Description
Technical Field
The application relates to the technical field of medical use, in particular to a dispensing system for injection water for pharmacy.
Background
The quality of the medicine is related to the life and health of people, the production quality of the medicine is related to a plurality of factors, and the quality of water used in the process of producing the medicine must accord with the regulation of water for injection in Chinese pharmacopoeia. The water for injection is distilled water or deionized water obtained by distillation. The injection water distribution system is a circulating pipeline, and the injection water flows through the drug production process from the main water supply pipeline.
Factors that require attention for the quality of the injection water include the water temperature, the water conductivity, and the water flow rate. Of these three elements, as long as one does not meet the standard, the injection water is not qualified and is prohibited from being used for pharmaceutical production. In order to guarantee the production quality of the medicine, the water temperature, the conductivity and the flow rate of the water for injection need to be strictly monitored. At present, supervision is in a mode of manual checking, after a water supply system starts to operate, the labor intensity of workers is high, and if abnormal changes of injection water parameters cannot be found in time, great potential hazards are brought to the safety of drug production. And the artificial error rate is high, misjudgment is easy to occur, and the normal drug production process can be interfered.
Disclosure of Invention
In order to improve the quality of injection water, ensure the production safety of medicines and monitor the water temperature, the conductivity and the flow rate of the injection water in real time to meet the indexes specified by GMP regulations, the application provides a distribution system of the injection water for pharmacy.
The above application purpose of the present application is achieved by the following technical solutions:
a dispensing system of injection water for pharmacy comprises a liquid storage tank, a raw water tank, a water inlet pipe, a water outlet pipe, an injection water using point, a water return pipe, a first electric valve and a second electric valve, wherein the lower end of the liquid storage tank is communicated with the water outlet pipe, the upper end of the liquid storage tank is communicated with the water return pipe through the first electric valve, the water return pipe is connected with a detection unit for detecting injection water parameters, the water outlet pipe is connected with the injection water using point, and the detection unit is communicated with the injection water using point through a pipeline; the water injection device is characterized in that a second electric valve is connected to a water return pipe between the first electric valve and the detection unit, the other end of the second electric valve is communicated with a raw water tank through a pipeline, a water outlet pipe between the liquid storage tank and an injection water using point is connected with a water inlet pipe, the detection unit, the first electric valve and the second electric valve are respectively and electrically connected with a controller, and the controller controls the working states of the first electric valve and the second electric valve according to information collected by the detection unit.
By adopting the technical scheme, the detection unit can detect the conductivity, flow rate and temperature of the injection water in the return water pipe in real time and transmit the data to the controller, the controller analyzes and compares the received data with a preset threshold value, if the injection water in the return water pipe meets the index specified by GMP (good manufacturing practice) regulations, the controller controls the first electric valve to open and close the second electric valve, and the injection water meeting the specification enters the liquid storage tank to be used by an injection water using point; if the injection water in the water return pipe has an index which does not conform to the GMP regulation, the controller controls the first electric valve to be closed and the second electric valve to be opened, and the unqualified injection water is sent back to the raw water tank for remanufacturing, so that the injection water in the water return pipe is ensured to be in a qualified state all the time.
Preferably, the detection unit includes a conductivity sensor for detecting conductivity of the injection water in the return pipe, a flow rate sensor for detecting a flow rate of the injection water in the return pipe, and a temperature sensor for detecting a temperature of the injection water in the return pipe.
By adopting the technical scheme, the detection unit can detect the conductivity, the flow rate and the temperature of the injection water in the return water pipe in real time, and the controller compares the conductivity, the flow rate and the temperature with the preset threshold value to judge whether the injection water meets the index specified by GMP regulations or not, so that the safety of medicine production is ensured.
Preferably, the controller is electrically connected with a storage unit, and the storage unit stores preset electrical conductivity threshold value of 1.3um/s, flow rate threshold value of 1m/s and water temperature threshold value range of 75 +/-2 ℃.
By adopting the technical scheme, the parameter index of the injection water is ensured to meet the index specified by GMP regulations, and the safety of the production of the medicine is ensured.
Preferably, the controller analyzes and processes the data acquired by the detection unit, and if the controller judges that the data acquired by the detection unit simultaneously meet the following conditions that the conductivity of the injection water is smaller than a conductivity threshold value, the flow rate of the injection water is larger than a flow rate threshold value, and when the water temperature of the injection water is within a water temperature threshold value range, the controller controls the first electric valve to be opened and the second electric valve to be closed; if any one of the above conditions is not met, the controller controls the first electric valve to be closed and the second electric valve to be opened.
By adopting the technical scheme, the controller receives the data collected by the detection unit and judges that the following conditions are met simultaneously, namely the conductivity of the injection water is smaller than a conductivity threshold value, the flow rate of the injection water is larger than a flow rate threshold value, when the water temperature of the injection water is within a water temperature threshold value range, the controller controls the first electric valve to be opened and the second electric valve to be closed, and the injection water meeting the requirements enters the liquid storage pipe to be used by an injection water using point. When any one of the conditions is not met, the controller controls the first electric valve to be closed and the second electric valve to be opened, injection water which does not meet the requirements enters the raw water tank, and the injection water in the raw water tank enters the injection water production equipment again for reproduction.
Preferably, a heating tank is arranged on a pipeline between the detection unit and an injection water using point, a coil pipe is arranged in the heating tank, two ends of the coil pipe are communicated with the pipeline, the outer walls of two ends of the coil pipe are hermetically connected with the side wall of the heating tank, an electric heating unit is arranged in the heating tank, the electric heating unit is electrically connected with a controller, and the heating tank is connected with a water supply pipe; if the controller judges that the temperature of the injection water collected by the detection unit is lower than the lower limit of the water temperature threshold range, the controller controls the electric heating unit to start, and if the controller judges that the temperature of the injection water collected by the detection unit is higher than the upper limit of the water temperature threshold range, the controller controls the electric heating unit to stop working.
By adopting the technical scheme, when the water temperature in the injection water return pipe is lower than the lower limit of the water temperature threshold range, the controller starts the electric heating unit to heat the injection water flowing through the coil pipe; when the temperature data detected by the temperature sensor is higher than the upper limit of the water temperature threshold range, the controller controls the electric heating unit to stop working, so that the water temperature of the injected water is ensured to meet the water use requirement.
Preferably, the water inlet pipe, the water supply pipe and the water outlet pipe between the water inlet pipe and the injection water use point are respectively provided with a stop valve.
Through adopting above-mentioned technical scheme, the stop valve makes things convenient for opening of control pipeline, the use and the maintenance of distribution system of being convenient for.
Preferably, the controller is electrically connected with the alarm device and the display unit; and if the controller judges that the data acquired by the detection unit does not meet any of the following conditions, the conductivity of the injection water is smaller than the conductivity threshold value, the flow rate of the injection water is larger than the flow rate threshold value, and the controller controls the alarm device to start when the water temperature of the injection water is within the water temperature threshold value range.
By adopting the technical scheme, the detection unit monitors the temperature, the conductivity and the flow rate of the injection water, and the controller compares the temperature, the conductivity and the flow rate data of the injection water in the water return pipe with the preset conductivity threshold value, flow rate threshold value and temperature threshold value range. If one of the three data deviates from the specified range, an alarm signal is sent out for the reference and timely processing of production personnel, so that the quality of the injection water is ensured, and the safety of the drug production is ensured.
Preferably, a proportional control valve is connected to a water return pipe between the detection unit and the first electric valve, and the proportional control valve is electrically connected to the controller.
By adopting the technical scheme, the flow velocity sensor detects the flow velocity data of the injection water in the return water pipe and sends the data to the controller, the real-time flow velocity data received by the controller is analyzed and compared with the preset flow velocity threshold value, and the opening degree of the proportional control valve is controlled, so that the flow velocity of the injection water is within the range of the flow velocity threshold value.
Preferably, the water outlet pipe between the liquid storage tank and the water inlet pipe is connected with a one-way valve, and the water flow direction of the one-way valve flows from the liquid storage tank to an injection water use point.
By adopting the technical scheme, the qualified injection water in the water supply pipe can smoothly reach the injection water use point after entering the water outlet pipe.
Preferably, the first electrically operated valve and the second electrically operated valve are both electrically operated diaphragm valves.
Through adopting above-mentioned technical scheme, electronic diaphragm valve adopts soft seal diaphragm, and the leakproofness is good, job stabilization, and the controller of being convenient for controls its operating condition.
To sum up, the beneficial technical effect of this application does:
the detection unit can detect the conductivity, flow rate and temperature of the injection water in the return water pipe in real time, the data are transmitted to the controller, the controller analyzes and compares the received data with a preset threshold value, if the injection water in the return water pipe meets the index specified by GMP (good manufacturing practice) regulations, the controller controls the first electric valve to open and close the second electric valve, and the injection water meeting the specification enters the liquid storage tank to be used by an injection water using point; if the injection water in the water return pipe has an index which does not conform to the GMP regulation, the controller controls the first electric valve to be closed and the second electric valve to be opened, and the unqualified injection water is sent back to the raw water tank for remanufacturing, so that the injection water in the water return pipe is ensured to be in a qualified state all the time.
This application monitors the conductivity, temperature and the velocity of flow of injection water in the return water pipeline through alarm device to this quality of monitoring pharmaceutical production injection water. The temperature, the conductivity and the flow rate of the injection water are monitored in real time in the production process, and the controller compares the temperature, the conductivity and the flow rate data of the injection water with a preset conductivity threshold value, a preset flow rate threshold value and a preset temperature threshold value range. If one of the three data deviates from normal, an alarm signal is sent out for the reference and timely processing of production personnel, so that the quality of the injection water is ensured, and the safety of the drug production is ensured.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
fig. 2 is a block diagram of an electrical control structure of the present application.
Figure 1, a liquid storage tank; 2. a raw water tank; 3. a water inlet pipe; 4. a water outlet pipe; 5. point of use of injection water; 6. a water return pipe; 7. a first electrically operated valve; 8. a second electrically operated valve; 9. a detection unit; 91. a conductivity sensor; 92. a flow rate sensor; 93. a temperature sensor; 10. a controller; 11. a storage unit; 12. a heating tank; 121. a coil pipe; 122. an electrical heating unit; 123. a water supply pipe; 13. a proportional regulating valve; 14. an alarm device; 15. a display unit; 16. a stop valve; 17. a one-way valve.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
As shown in fig. 1 and 2, a dispensing system for pharmaceutical injection water comprises a liquid storage tank 1, a raw water tank 2, a water inlet pipe 3, a water outlet pipe 4, an injection water use point 5, a water return pipe 6, a first electric valve 7 and a second electric valve 8, wherein the lower end of the liquid storage tank 1 is communicated with the water outlet pipe 4, the upper end of the liquid storage tank 1 is communicated with the water return pipe 6 through the first electric valve 7, the water return pipe 6 is connected with a detection unit 9 for detecting injection water parameters, the water outlet pipe 4 is connected with the injection water use point 5, the detection unit 9 is communicated with the injection water use point 5 through a pipeline, and the whole system forms a closed loop; a second electric valve 8 is connected on a water return pipe 6 between a first electric valve 7 and a detection unit 9, the other end of the second electric valve 8 is communicated with a raw water tank 2 through a pipeline, a water outlet pipe 4 between a liquid storage tank 1 and an injection water using point 5 is connected with a water inlet pipe 3, qualified injection water is injected into the water outlet pipe 4 by the water inlet pipe 3 to be used by the injection water using point 5, the detection unit 9, the first electric valve 7 and the second electric valve 8 are respectively and electrically connected with a controller 10, the controller 10 receives information sent by the detection unit 6, analyzes and processes the information collected by the detection unit 6, and controls the working states of the first electric valve 7 and the second electric valve 8; in the present embodiment, electric diaphragm valves are used for both the first electric valve 7 and the second electric valve 8.
As shown in FIG. 2, the detection unit 9 of this embodiment includes a conductivity sensor 91 for detecting the conductivity of the water injected into the water return pipe 6, a flow rate sensor 92 for detecting the flow rate of the water injected into the water return pipe 6, and a temperature sensor 93 for detecting the temperature of the water injected into the water return pipe 6. The controller 10 analyzes and processes the data collected by the detection unit 9, and if the controller 10 judges that the data collected by the detection unit 9 simultaneously meet the following conditions that the conductivity of the injection water is smaller than the conductivity threshold value, the flow rate of the injection water is larger than the flow rate threshold value, and the controller 10 controls the first electric valve 7 to be opened and the second electric valve 8 to be closed when the water temperature of the injection water is within the range of the water temperature threshold value; if any of the above conditions is not satisfied, the controller 10 controls the first motor-operated valve 7 to close and the second motor-operated valve 8 to open.
The detection unit 9 of the present application can detect the conductivity, flow rate and temperature of the injection water in the water return pipe 6 in real time, and transmit the data to the controller 10, the controller 10 analyzes and compares the received data with a preset corresponding threshold, if the injection water in the water return pipe 6 meets the index specified by the GMP regulation, the controller 10 controls the first electric valve 7 to open, and simultaneously closes the second electric valve 8, and the injection water meeting the regulation enters the liquid storage tank 1 for the injection water use point 5 to use; if one index of the injection water in the water return pipe 6 does not meet the index specified by GMP regulations, the controller 10 controls the first electric valve 7 to be closed, and simultaneously the second electric valve 8 is opened, so that the unqualified injection water is sent back to the raw water tank 2 for remanufacturing, and the injection water in the whole system is ensured to be in a qualified state all the time.
As shown in fig. 2, the controller 10 of the present embodiment is electrically connected to a storage unit 11, and the storage unit 11 is configured to store a preset conductivity threshold of 1.3um/s, a preset flow rate threshold of 1m/s, and a preset water temperature threshold range of 75 ± 2 ℃. The parameter index of the injection water conforms to the index specified by GMP regulations, and the production safety of the medicine can be ensured.
In order to ensure that the temperature of the injection water in the whole system is kept within a specified temperature range, a heating tank 12 is arranged on a pipeline between a detection unit 9 and an injection water using point 5, a coil 121 is arranged in the heating tank 12, two ends of the coil 121 are communicated with the pipeline, outer walls of two ends of the coil 121 are hermetically connected with the side wall of the heating tank 12, an electric heating unit 122 is arranged in the heating tank 12, the electric heating unit 122 is electrically connected with a controller 10, the heating tank 12 is connected with a water supply pipe 123, and standby water can be injected into the heating tank 12 through the water supply pipe 123. When the temperature of the injection water collected by the temperature sensor 93 is lower than the threshold range of the water temperature, the controller 10 controls the electric heating unit 122 to start, the electric heating unit 122 heats the standby water in the heating tank 12, and the injection water flowing through the coil 121 is heated; when the temperature data detected by the temperature sensor 93 is higher than the upper limit of the water temperature threshold range, the controller 10 controls the electric heating unit 122 to stop working, thereby ensuring that the water temperature of the injection water meets the specified requirements.
In order to effectively control the flow rate of the injection water in the return pipe 6 to meet relevant regulations, a proportional regulating valve 13 is connected to the return pipe 6 between the detection unit 9 and the first electric valve 7, and the proportional regulating valve 13 is electrically connected to the controller 10. The flow rate sensor 92 detects the flow rate data of the injected water in the water return pipe 6 in real time and sends the data to the controller 10, the controller 10 analyzes and compares the received real-time flow rate data with a preset flow rate threshold value, and controls the opening degree of the proportional control valve 13, so that the flow rate of the injected water meets the index specified by the GMP regulation.
As shown in fig. 2, in order to monitor the quality of the water for injection, the controller 10 is electrically connected to an alarm device 14 and a display unit 15. If the controller 10 judges that the data collected by the detection unit 9 do not meet any of the following conditions that the conductivity of the injection water is smaller than the conductivity threshold value, the flow rate of the injection water is larger than the flow rate threshold value, and the water temperature of the injection water is within the water temperature threshold value range, the controller 10 controls the alarm device 14 to start.
The detection unit 9 detects the temperature, the conductivity and the flow rate of the injection water in the water return pipe in real time, the controller 10 compares the temperature, the conductivity and the flow rate data of the injection water in the water return pipe 6 with preset conductivity threshold values, flow rate threshold values and temperature threshold value ranges, and if one of the three data deviates from the specified range, an alarm signal is sent out for reference and timely processing of production personnel, so that the quality of the injection water is ensured, and the safety of medicine production is ensured.
In order to facilitate the use and maintenance of the distribution system, the water inlet pipe 3, the water supply pipe 123 and the water outlet pipe 4 between the water inlet pipe 3 and the injection water use point 5 are respectively provided with a stop valve 16, the water outlet pipe 4 between the liquid storage tank 1 and the water inlet pipe 3 is connected with a check valve 17, the water flow direction of the check valve 17 flows from the liquid storage tank 1 to the injection water use point 5, when the injection water meeting the requirements in the water supply pipe 123 is injected into the water outlet pipe 4, the injection water meeting the requirements can smoothly enter the injection water use point 5, and the normal use of the injection water use point 5 is ensured.
The working process of the application is as follows: the flow direction of the injection water is shown in fig. 1, in the production of medicine, the water supply pipe 123 pumps qualified injection water into the water outlet pipe 4, the injection water is pressurized from the liquid storage tank 1 by a circulating pump (not shown in the figure), firstly flows through the water outlet pipe 4 and is recycled to the injection water using point 5, and unused injection water flows back to the liquid storage tank through the coil pipe 121 and the water return pipe 6, and is recycled. During this circulation flow, changes in conductivity, flow rate, and temperature may occur, and the changes occur continuously. The conductivity of the injection water is affected as the circulation time is too long, and the temperature of the injection water which is recycled in the drug production process must be within the specified temperature range, so that the conductivity, the flow rate and the temperature need to be monitored in real time, and the values of the three factors are the same as the indexes specified by the GMP regulations.
In order to enable the production personnel to know the quality state of the injection water in real time, the injection water distribution system is provided with an alarm device 14 and a display unit 15, and the display unit 15 can display the current conductivity, flow rate and temperature of the injection water in the water return pipe 6 in real time. When the controller 10 judges that the data collected by the detection unit 9 does not meet any of the following conditions that the conductivity of the injection water is smaller than the conductivity threshold value, the flow rate of the injection water is larger than the flow rate threshold value, and the water temperature of the injection water is within the water temperature threshold value range, the controller 10 controls the alarm device 14 to be started, so that production personnel can rapidly make a processing scheme by combining the alarm signal and the reading displayed by the current display unit 15, and different processing schemes are adopted to remove the alarm aiming at different readings.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The dispensing system of the injection water for pharmacy is characterized by comprising a liquid storage tank (1), a raw water tank (2), a water inlet pipe (3), a water outlet pipe (4), an injection water use point (5), a water return pipe (6), a first electric valve (7) and a second electric valve (8), wherein the lower end of the liquid storage tank (1) is communicated with the water outlet pipe (4), the upper end of the liquid storage tank (1) is communicated with the water return pipe (6) through the first electric valve (7), the water return pipe (6) is connected with a detection unit (9) for detecting parameters of the injection water, the water outlet pipe (4) is connected with the injection water use point (5), and the detection unit (9) is communicated with the injection water use point (5) through a pipeline; connect second motorised valve (8) on return water pipe (6) between first motorised valve (7) and detecting element (9), the former water pitcher (2) of second motorised valve (8) other end through pipeline intercommunication, inlet tube (3) are connected in outlet pipe (4) between liquid storage pot (1) and the injection water use point (5), detecting element (9), first motorised valve (7) and second motorised valve (8) electricity connection director (10) respectively, information that controller (10) gathered according to detecting element (9) controls the operating condition of first motorised valve (7) and second motorised valve (8).
2. The system for dispensing injection water for pharmaceutical use according to claim 1, wherein said detection unit (9) comprises a conductivity sensor (91) for detecting the conductivity of the injection water in the return pipe (6), a flow rate sensor (92) for detecting the flow rate of the injection water in the return pipe (6), and a temperature sensor (93) for detecting the temperature of the injection water in the return pipe (6).
3. The system for dispensing injectable water for pharmaceutical use according to claim 1, wherein said controller (10) is electrically connected to a storage unit (11), said storage unit (11) storing a preset threshold value of conductivity of 1.3um/s, a threshold value of flow rate of 1m/s and a threshold range of water temperature of 75 ± 2 ℃.
4. A system for dispensing injectable water for pharmaceutical use according to claim 3, wherein the controller (10) analyses the data collected by the detection unit (9) and if the controller (10) determines that the data collected by the detection unit (9) simultaneously satisfies the following conditions: the electrical conductivity of the injected water is smaller than an electrical conductivity threshold value, the flow rate of the injected water is larger than a flow rate threshold value, and when the water temperature of the injected water is within a water temperature threshold value range, the controller (10) controls the first electric valve (7) to be opened and the second electric valve (8) to be closed; if any one of the above conditions is not met, the controller (10) controls the first electric valve (7) to be closed and the second electric valve (8) to be opened.
5. The system for dispensing injection water for pharmacy according to claim 3, wherein a heating tank (12) is provided on the pipeline between the detection unit (9) and the injection water use point (5), a coil (121) is provided in the heating tank (12), both ends of the coil (121) are communicated with the pipeline, the outer walls of both ends of the coil (121) are hermetically connected with the side wall of the heating tank (12), an electric heating unit (122) is provided in the heating tank (12), the electric heating unit (122) is electrically connected with the controller (10), and the heating tank (12) is connected with a water supply pipe (123); if the controller (10) judges that the temperature of the injection water collected by the detection unit (9) is lower than the lower limit of the water temperature threshold range, the controller (10) controls the electric heating unit (122) to start, and if the controller (10) judges that the temperature of the injection water collected by the detection unit (9) is higher than the upper limit of the water temperature threshold range, the controller (10) controls the electric heating unit (122) to stop working.
6. The dispensing system for injectable water for pharmaceutical use according to claim 5, characterized in that the inlet pipe (3), the water supply pipe (123) and the outlet pipe (4) between the inlet pipe (3) and the point of use (5) for injectable water are provided with respective shut-off valves (16).
7. A system for dispensing injectable water for pharmaceutical use according to claim 3, wherein said controller (10) is electrically connected to alarm means (14) and to a display unit (15); if the controller (10) judges that the data collected by the detection unit (9) do not meet any of the following conditions, the conductivity of the injection water is smaller than a conductivity threshold value, the flow rate of the injection water is larger than a flow rate threshold value, and when the water temperature of the injection water is within a water temperature threshold value range, the controller (10) controls the alarm device (14) to be started.
8. The system for dispensing injectable water for pharmaceutical use according to claim 1, characterized in that a proportional regulating valve (13) is connected to the return pipe (6) between the detection unit (9) and the first electric valve (7), said proportional regulating valve (13) being electrically connected to the controller (10).
9. The dispensing system for injectable water for pharmaceutical use according to claim 1, wherein the outlet pipe (4) between the reservoir (1) and the inlet pipe (3) is connected to a one-way valve (17), the one-way valve (17) having a water flow direction from the reservoir (1) to the point of use (5) for injectable water.
10. The system for dispensing injectable water for pharmaceutical use according to claim 1, wherein said first electric valve (7) and said second electric valve (8) are both electric diaphragm valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932909.0A CN113639203A (en) | 2021-08-13 | 2021-08-13 | Dispensing system of injection water for pharmacy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932909.0A CN113639203A (en) | 2021-08-13 | 2021-08-13 | Dispensing system of injection water for pharmacy |
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| CN113639203A true CN113639203A (en) | 2021-11-12 |
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| CN202110932909.0A Pending CN113639203A (en) | 2021-08-13 | 2021-08-13 | Dispensing system of injection water for pharmacy |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203036833U (en) * | 2012-12-21 | 2013-07-03 | 广东环球制药有限公司 | Process water circulating and heat-insulating system for pharmaceutical enterprises |
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| CN204512956U (en) * | 2015-04-01 | 2015-07-29 | 江西生物制品研究所 | A kind of water for injection backflow automatic control device |
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