CN113753994A - Medical injection water preparation system and control method thereof - Google Patents
Medical injection water preparation system and control method thereof Download PDFInfo
- Publication number
- CN113753994A CN113753994A CN202111240172.2A CN202111240172A CN113753994A CN 113753994 A CN113753994 A CN 113753994A CN 202111240172 A CN202111240172 A CN 202111240172A CN 113753994 A CN113753994 A CN 113753994A
- Authority
- CN
- China
- Prior art keywords
- steam
- water
- module
- medical injection
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/08—Thin film evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
- B01D1/065—Evaporators with vertical tubes by film evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Medicinal Preparation (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention provides a medical injection water preparation system and a control method thereof, wherein the medical injection water preparation system comprises a preparation unit and a control unit; the preparation unit is used for preparing water for medical injection; the control unit is arranged on the preparation unit and used for controlling and adjusting the preparation unit in the working process, so that the medical injection water preparation system comprises: the pressure of the steam generator is kept between 0.4 and 0.8MPa, and the liquid level is kept between 5 and 35 cm; the steam sprayed from the steam outlet of the steam sprayer is maintained at 112-125 ℃ saturated steam; the temperature drop between the two adjacent falling-film evaporators is kept to be 3-5 ℃; the water making ratio of qualified product water of the medical injection water preparation system is not less than 8. The invention has the beneficial effects that: the overheating phenomenon existing after pure water steam and supplementary steam are mixed is overcome, and the problem of insufficient heat efficiency of the first-effect evaporator caused by the overheating degree of the steam is solved; the possible bad working conditions such as empty pipe, flooded pipe and the like in the system are eliminated, and the high operation stability and ideal water production efficiency of the injection water preparation system are ensured.
Description
Technical Field
The invention relates to the field of water for injection, in particular to a medical water for injection preparation system and a control method thereof.
Background
The medical injection water is water which meets the requirements of the Chinese pharmacopoeia injection water. The water for injection is distilled water or distilled water of deionized water, and is also called double distilled water. The common normal water contains a large amount of impurities such as suspended matters, salts, organic matters, bacteria and the like, can not be directly used for preparing the injection water agent, and the injection water agent is prepared by firstly obtaining purified water through a certain purification process and then removing the impurities again through a distilled water preparation mode. The method for preparing water for injection is that the medical water for injection must be prepared by distillation method according to the clear regulations of Chinese pharmacopoeia.
In the distillation process, in order to effectively control microbial contamination and simultaneously control the level of bacterial endotoxin, the existing medical water preparation system for injection has two main characteristics: one is that disinfection/sterilization facilities or device structures that are easy to disinfect/sterilize are increasingly employed in systems; the second is that the pipeline distribution system is changed from the traditional water supply pipeline to the circulating pipeline.
The existing preparation system for water for injection generally at least comprises water treatment equipment and water storage equipment, and generally adopts a preparation method of multi-effect tandem arrangement of vertical pipe/horizontal pipe falling film evaporation, and the preparation system for water for injection mainly comprises: the vertical pipe/horizontal pipe falling film evaporator, the preheater, the condenser, the water storage tank, the automatic control system and the like, and the main principle is as follows: qualified raw material water enters each effect preheater in sequence after being subjected to heat exchange by a condenser, the temperature of the raw material water can be lower than the heating steam of each effect evaporator after the heat exchange, then the raw material water enters a first effect evaporator and is sprayed on the inner wall of a heating pipe by a material water distributor, the material water flows in the pipe in a film-shaped manner and is heated and vaporized by mixed steam from a pure water steam regeneration device and a last effect evaporator, the generated secondary steam with water drops enters a steam-water separation device from the lower end of the heating pipe, the separated pure steam enters the next effect to serve as the heating steam, the raw material water which is not evaporated enters the next effect, and the process is repeated.
The inventor finds that in the existing mode of mixing pure water steam and supplementary steam of a last effect falling film evaporator, after two streams of steam are mixed, an overheating phenomenon often exists before entering a transverse pipe in a first effect evaporator, spray water in the first effect evaporator needs to firstly eliminate the superheat degree of steam in the transverse pipe, but the part of heat is sensible heat, the heat is small, the spray water cannot be evaporated in a large amount, the heat efficiency of the first effect evaporator is insufficient, enough steam capable of effectively driving a second effect evaporator cannot be produced, and therefore the whole injection water preparation system is unstable in operation and cannot operate continuously and circularly.
Simultaneously, the inventor has also found, between standpipe/horizontal pipe falling film evaporation ware and the product water pitcher that the multiple-effect is established ties and is set up, in the course of the work, the inside bad operating mode such as air hose that appears of equipment easily, flood the pipe, can't guarantee to keep good heat exchange efficiency between each effect evaporimeter, also can't guarantee that the former effect evaporimeter can produce sufficient pressure drive power, make raw materials water, product water and steam effectively get into next effect evaporimeter, thereby can't guarantee the effective cooperation between each effect evaporimeter, the problem that system water efficiency descends by a wide margin can appear in the system, can't guarantee injection water preparation system's operating stability and water production efficiency.
Chinese patent CN113087053A discloses a medical injection water preparation system, which adopts a mode of mixing pure water vapor and final effect vapor by a jet compressor, supplies heat to four-effect horizontal tube falling film evaporators connected in series, processes raw material pure water, and prepares medical injection water. However, the defects are that the heat source steam provided by the jet compressor to the first-effect transverse tube falling-film evaporator has overheating phenomenon, and the superheat degree of the controller cannot be stabilized, so that the heat efficiency of the first-effect evaporator is insufficient, enough steam capable of effectively driving the second-effect evaporator cannot be produced, and the operation stability of the whole system is greatly reduced; meanwhile, in the long-term operation process of the system, the interior of the equipment is easy to have bad working conditions such as empty pipes, flooded pipes and the like, so that the good heat exchange efficiency among the evaporators can not be ensured, and the problem of great reduction of water production efficiency can occur when the system is operated for a long time.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a medical injection water preparation system and a control method thereof, so as to realize the following purposes:
(1) the problem of superheat degree existing after pure water steam and supplementary steam are mixed in the existing medical injection water preparation system is solved, the phenomenon that the superheat degree evaporation capacity of spray water is insufficient can be eliminated, the heat efficiency of a first-effect evaporator is ensured, and the operation stability and continuity of the whole injection water preparation system are ensured;
(2) the working conditions that in the working process, empty pipes, flooded pipes and the like are easy to occur between the multi-effect serially-connected vertical pipe/horizontal pipe falling-film evaporators and the product water tank are overcome, good heat exchange efficiency can be kept between the single-effect evaporators, the previous single-effect evaporator can be guaranteed to generate enough pressure driving force, raw material water, product water and steam can effectively enter the next single-effect evaporator, and effective matching between the single-effect evaporators is guaranteed.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a medical injection water preparation system comprises a preparation unit and a control unit;
the preparation unit is used for preparing water for medical injection;
the control unit is arranged on the preparation unit and used for controlling and adjusting the preparation unit in the working process, so that the medical injection water preparation system comprises: the pressure in the steam generator is kept at 0.4-0.8MPa, and the liquid level is kept at 5-35 cm; the steam sprayed from the steam outlet of the steam sprayer is maintained at 112-125 ℃ saturated steam; the temperature drop between the adjacent two-effect horizontal tube falling-film evaporators is kept to be 3-5 ℃; the water making ratio of qualified product water of the medical injection water preparation system is not less than 8.
Preferably, the steam sprayed by the steam outlet of the steam sprayer is kept at 115 ℃ of saturated steam.
Further, the preparation unit comprises a heat source module, a preparation module and a storage module;
the heat source module is used for providing a heat source for the preparation module;
the preparation module adopts a heat source provided by the heat source module to carry out multi-effect evaporation treatment on the raw material pure water to prepare the medical injection water;
the storage module acquires and stores the medical injection water prepared by the preparation module.
Further, the heat source module includes: a raw material pure water pump, a steam generator, a condenser and a steam ejector;
the raw material pure water pump is used for driving raw material pure water into the steam generator;
the steam generator is used for generating pure water steam as a heat source of the preparation module;
the condenser is used for preheating raw material pure water of the medical injection water preparation system;
the steam ejector is used for providing saturated steam with the temperature of 112-125 ℃ to the preparation module.
Further, the preparation module comprises a plurality of transverse tube falling film evaporators and raw material preheaters which are sequentially connected in series;
in the plurality of horizontal tube falling-film evaporators connected in series in sequence, the evaporation residual water in the previous horizontal tube falling-film evaporator can enter the next horizontal tube falling-film evaporator to continue falling-film evaporation;
the horizontal tube falling film evaporator is used for performing falling film evaporation on raw material pure water to prepare water for medical injection;
the raw material preheater is used for preheating the raw material pure water of the medical injection water preparation system before the condenser.
Further, the steam ejector is provided with a primary inlet, a secondary inlet and a steam outlet;
the primary flow inlet is connected with a steam outlet of the steam generator;
the secondary inflow port is connected with a steam outlet of the last-effect horizontal tube falling-film evaporator;
the steam outlet is provided with a spraying device;
the spraying device can spray raw material pure water to the outlet of the steam injector, is used for eliminating the superheat degree of steam sprayed by the outlet of the steam injector and keeps the steam to be saturated steam with the temperature of 112-125 ℃.
Further, the control unit includes: the device comprises a detection module, a control module, a processing module and an execution module;
the heat source module, the preparation module and the storage module are arranged on the heat source module, and are used for detecting and acquiring real-time data of each module and sending the acquired operation data to the control module;
the real-time data comprises: a liquid level value, a temperature value and a pressure value in the steam generator; industrial steam feeding pressure value and flow value of the steam generator; the pressure value and the flow value of the raw material pure water feeding of the steam generator; pure water steam pressure value and mass flow value of the primary inlet of the steam ejector; a steam mass flow value of a secondary inlet of the steam ejector; steam mass flow value, temperature value and pressure value at the outlet of the steam ejector; the feeding pressure value, the temperature value and the flow value of the raw material pure water of the medical injection water system; the pressure value, the temperature value, the liquid level value and the discharge flow value of the first-effect horizontal tube falling film evaporator; the pressure value, the temperature value, the liquid level value and the discharge flow value of the other-effect horizontal tube falling film evaporator; a condenser outlet temperature value; temperature value, liquid level value and water quality index of the product water of the finished product tank.
Further, the processing module is configured to obtain the operation data sent by the control module, calculate output data according to the operation data through a pre-established algorithm model, and send the output data to the control module, so that the control module sends a control instruction to the execution module according to the output data, so that the following parameters of the medical water preparation system for injection are kept within a predetermined range: the pressure and the liquid level of the steam generator, the steam parameters at the outlet of the steam ejector and the temperature drop between the adjacent two-effect horizontal tube falling-film evaporators are controlled; the water making ratio of qualified product water of the medical injection water preparation system.
A control method of a medical injection water preparation system, the control method comprising:
s01: an algorithm model is established in advance;
s02: acquiring operation data;
s03: and calculating output data according to the operation data by using the algorithm model so as to adjust the medical injection water system according to the output data, so that the water generation ratio of qualified product water of the medical injection water preparation system is not less than 8.
Preferably, the control method includes:
s01: an algorithm model is established in advance;
s02: acquiring operation data;
s03: calculating output data according to the operation data by using an algorithm model so as to adjust the medical injection water system according to the output data, so that the medical injection water preparation system comprises: the pressure in the steam generator is kept at 0.4-0.8MPa, and the liquid level is kept at 5-35 cm; the steam sprayed from the steam outlet of the steam sprayer is maintained at 112-125 ℃ saturated steam; the temperature drop between the adjacent two-effect horizontal tube falling-film evaporators is kept to be 3-5 ℃; the water making ratio of qualified product water of the medical injection water preparation system is not less than 8.
Compared with the prior art, the invention has the beneficial effects that:
(1) the medical injection water preparation system and the control method thereof can effectively overcome the overheating phenomenon existing after pure water steam and supplementary steam are mixed in the prior art, effectively overcome the problem of insufficient thermal efficiency of the first-effect evaporator caused by the elimination of the degree of superheat of the steam, effectively ensure that the first-effect evaporator produces enough steam capable of effectively driving the second-effect evaporator, and realize stable continuous and circulating operation.
(2) According to the medical injection water preparation system and the control method thereof, poor working conditions such as empty pipes, flooded pipes and the like between the multiple-effect serially-connected falling-film evaporators and the product water tanks and inside equipment are effectively eliminated, good heat exchange efficiency among the evaporators is effectively ensured, the previous evaporator can be effectively ensured to generate enough pressure driving force, raw material water, product water and steam can effectively enter the next evaporator, effective matching among the evaporators is ensured, and high operation stability and ideal water production efficiency of the injection water preparation system are further ensured.
(3) The medical injection water preparation system and the control method thereof fully utilize high-temperature heat source and step pressure drive, adopt a specific control method, and the water making ratio (the ratio of water yield to steam consumption) of qualified product water prepared by the system is not less than 8.
(4) According to the preparation system and the control method of the medical injection water, when the water yield of qualified product water prepared by the system is 1 ton, the water inlet flow of the steam generator is 125kg/h, the industrial steam flow is 125kg/h, the first-effect inlet flow is 250kg/h, the first-effect raw material water inlet flow is 1.1t/h, and the last-effect inlet flow is 350kg/h, so that all levels of heat sources can be fully utilized, the heat transfer coefficient is good, the evaporation efficiency is high, and the water production efficiency is stable.
(5) According to the medical injection water preparation system and the control method thereof, the possibly-occurring bad working conditions in the system are effectively eliminated, the production stop maintenance condition of the system caused by the bad working conditions is greatly reduced, the workload of workers is effectively reduced by more than 50%, meanwhile, the industrial steam consumption is reduced by 100%, and the energy utilization rate, the water generation ratio and the economic benefit are all improved by 100%.
Drawings
FIG. 1 is an overall schematic view of a medical water for injection preparation system of the present invention;
fig. 2 is a flow chart illustrating a control method of the medical water for injection preparation system according to the present invention.
In the figure: a raw material pure water pump 101, a steam generator 102, a condenser 103, a steam ejector 104, a primary inflow inlet 1041, a secondary inflow inlet 1042, a steam ejector steam outlet 1043, a first-effect horizontal tube falling film evaporator 105, a distribution chamber 1051, an evaporation chamber 1052, a steam chamber 1053, a second-effect horizontal tube falling film evaporator 106, a third-effect horizontal tube falling film evaporator 107, a last-effect horizontal tube falling film evaporator 108, a raw material preheater 109, a spray device 110, a steam residual pipeline 111, a condensed water pipeline 112, a steam pipeline 113, a last-effect steam pipeline 114, a steam residual water recycling pipeline 115, a raw material pure water feeding pipeline 116, a condensed water recycling pipeline 117, a product pipeline 118, a first branch pipe 119, a second branch pipe 120, a product pump 121, a sampling detection device 122 and a product storage tank 123; a raw material pure water feeding valve 201, an industrial steam air inlet valve 202, a first air inlet valve 203, a second air inlet valve 204, a spraying water inlet valve 205, a system feeding valve 206, a first evaporation residual water valve 207, a second evaporation residual water valve 208, a third evaporation residual water valve 209, a first condensation water valve 210, a second condensation water valve 211, a third condensation water valve 212, an evaporation residual water valve 213, a qualified product water valve 214 and an unqualified product water valve 215.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described.
As shown in fig. 1, the embodiment discloses a medical water preparation system for injection, which comprises a preparation unit and a control unit. The preparation unit is used for preparing water for medical injection; the control unit is arranged on the preparation unit and used for controlling and adjusting the preparation unit in the working process.
The preparation unit comprises a heat source module, a preparation module and a storage module. The heat source module, the preparation module and the storage module are connected in sequence. The heat source module is used for providing a heat source for the preparation module, and in the embodiment, the heat source module provides pure water vapor serving as the heat source for the preparation module. The preparation module adopts the heat source provided by the heat source module to carry out multi-effect evaporation treatment on the raw material pure water to prepare the medical injection water. The storage module acquires and stores the medical injection water prepared by the preparation module.
The heat source module includes: raw material pure water pump 101, steam generator 102, condenser 103, steam ejector 104.
A liquid inlet of the raw material pure water pump 101 is connected with a raw material pure water source through a pipeline, and a liquid outlet of the raw material pure water pump 101 is connected with a raw material liquid inlet at the upper part of the steam generator 102 through a pipeline. The raw pure water pump 101 is capable of driving raw pure water into the shell side of the steam generator 102.
Furthermore, a high-temperature medium is connected to a tube side in the steam generator 102, and the high-temperature medium is introduced from a tube side inlet in the middle of the steam generator 102 and is led out from a tube side outlet in the lower part of the steam generator 102. Wherein, the high-temperature medium can be industrial steam, heat-conducting oil and other conventional heat sources, and is preferably high-temperature industrial steam generated by an industrial boiler. Meanwhile, a tube pass outlet at the lower part of the steam evaporator is connected with a high-temperature medium inlet at the lower part of the condenser 103 through a pipeline, so that raw material pure water flowing through the condenser 103 can be preheated, and the secondary utilization of the residual heat of the high-temperature medium is realized. After the heat exchange of the high-temperature medium is completed in the condenser 103, the high-temperature medium (industrial steam condensate) is discharged from a high-temperature medium outlet at the upper part of the condenser 103.
The raw material pure water is heated by a high-temperature heat source in a tube pass in a shell pass of the steam generator 102, and is evaporated and vaporized to form pure water steam. Specifically, raw material pure water enters through a raw material liquid inlet at the upper part of the steam generator 102, is uniformly sprayed to the outer surfaces of a plurality of vertical discharge pipes at the middle lower part of the steam generator 102, and is heated and evaporated by industrial steam in the discharge pipes to generate pure water steam.
Further, a pure water steam outlet is arranged at the top of the steam generator 102, and the steam outlet is connected with the primary flow inlet 1041 of the steam ejector 104 through a pipeline. Pure water vapor generated in the vapor generator 102 can enter the vapor injector 104 through the pure water vapor outlet. The middle and the bottom of the steam generator 102 are provided with a residual steam outlet. The residual steam within the steam generator 102 can be discharged through the residual steam outlet.
The preparation module comprises a plurality of falling-film evaporators connected in series in sequence and a raw material preheater 109. In this embodiment, four horizontal tube falling-film evaporators connected in series in sequence are adopted, which are respectively: the system comprises a first-effect transverse tube falling-film evaporator 105, a second-effect transverse tube falling-film evaporator 106, a third-effect transverse tube falling-film evaporator 107 and a last-effect transverse tube falling-film evaporator 108. And evaporation residual water pipelines are arranged among the falling-film evaporators, and evaporation residual water in the last-effect falling-film evaporator can enter the next-effect falling-film evaporator through the evaporation residual water pipelines to continue falling-film evaporation.
Each effect horizontal tube falling film evaporator is provided with: a dispensing chamber 1051, an evaporation chamber 1052, a vapor chamber 1053. The distribution chamber 1051 is positioned at one end of the horizontal tube falling film evaporator and is used for supplying and distributing pure water vapor to the horizontal collecting tube in the evaporation chamber 1052 and collecting condensed water. The evaporation chamber 1052 is positioned in the middle of the horizontal tube falling film evaporator and is provided with a liquid distribution device and a bundling horizontal tube for falling film evaporation of raw material pure water and collection of evaporation residual water. The steam chamber 1053 is positioned at the other end of the horizontal tube falling film evaporator and is used for collecting pure water steam and condensed water.
Specifically, the steam outlet 1043 of the steam ejector is communicated with the first-effect horizontal tube falling-film evaporator 105 through a pipeline, and pure steam ejected from the steam outlet 1043 of the steam ejector enters the bundling horizontal tube through the distribution chamber 1051 of the first-effect horizontal tube falling-film evaporator 105 and flows towards the steam chamber 1053. Raw material pure water is preheated by a raw material preheater 109 and a condenser 103 in sequence, then is conveyed to a liquid distribution device at the upper part of a first-effect horizontal tube falling film evaporation chamber 1052 through a feeding pipeline, is uniformly sprayed onto a bundling horizontal tube at the lower part, and is heated and evaporated to generate pure water steam; the generated pure water steam enters the steam chamber 1053, enters the distribution chamber of the second-effect horizontal tube falling-film evaporator 106 through the steam pipeline 113, and then enters the bundling horizontal tube of the second-effect horizontal tube falling-film evaporator 106. Meanwhile, condensed water condensed by pure water vapor in the bundling transverse tube also enters the steam chamber and is collected, and then enters a distribution chamber of the second-effect transverse tube falling-film evaporator 106 through a condensed water pipeline 112; the condensed water is subjected to flash evaporation due to pressure difference, and the steam after flash evaporation enters a bundling transverse pipe of the second transverse pipe falling-film evaporator; after being collected, the condensate which is not flashed is introduced into the distribution chamber of the third effect horizontal tube falling-film evaporator 107 through the condensate pipe 112. Meanwhile, the evaporation residual water of the first-effect horizontal-tube falling-film evaporator 1052 is collected at the bottom of the evaporator and enters the liquid distribution device of the second-effect horizontal-tube falling-film evaporator 106 through the evaporation residual water pipeline 111. By adopting the same principle, pure water vapor, condensed water and evaporation residual water of the second-effect horizontal tube falling-film evaporator 106 enter a third-effect horizontal tube falling-film evaporator 107; pure water vapor, condensed water and evaporation residual water of the third effect horizontal tube falling-film evaporator 107 enter the last effect horizontal tube falling-film evaporator 108.
Further, the vapor chamber of the last effect horizontal tube falling film evaporator 108 is connected with the secondary flow inlet 1042 of the vapor ejector 104 through the last effect vapor pipe 114. When steam generated by the steam generator 102 passes through the steam ejector 104 and negative pressure is formed at the steam outlet 1043 of the steam ejector, pure water steam in the steam chamber of the last-effect horizontal tube falling-film evaporator 108 can be injected into the steam ejector 104 through the secondary inflow port 1042, mixed with the pure water steam of the steam generator 102, and then enters the inside of the first-effect horizontal tube falling-film evaporator 105. Meanwhile, a part of steam in the steam chamber of the last effect horizontal tube falling-film evaporator 108 enters the raw material preheater 109 through a first high-temperature medium inlet of the raw material preheater 109.
Meanwhile, a spraying device 110 is arranged on a pipeline at the steam outlet 1043 of the steam ejector, and the spraying device 110 is connected with the raw material pure water feeding pipeline 116 through a spraying pipeline. The spraying device 110 is used for eliminating the superheat degree of the steam ejected from the steam outlet 1043 of the steam ejector and adjusting the steam to reach a saturated state, so that the heat efficiency of the first-effect evaporator is ensured, and the operation stability and continuity of the whole injection water preparation system are ensured.
Specifically, the spraying device 110 may adopt a small high-pressure water pump to pump the raw material pure water into the pipeline at the steam outlet 1043 of the steam ejector, so as to eliminate the superheat degree of the steam ejected from the steam ejector outlet. Meanwhile, in order to ensure that the raw material pure water driven by the spraying device 110 is completely flashed, the raw material pure water can be sprayed in an atomizing manner by adopting a spraying head, and the spraying amount of the raw material pure water is strictly controlled so as to ensure that the pure water steam entering the first-effect horizontal tube falling-film evaporator 105 is saturated steam.
Further, the residual water collected in the evaporation chamber of the last effect horizontal tube falling film evaporator 108 is conveyed to a system raw material pure water feeding pipeline 116 through a residual water reuse pipeline 115 to be reused as raw material pure water. The condensed water collected in the distribution chamber and the steam chamber of the last effect horizontal tube falling-film evaporator 108 enters the raw material preheater 109 from the second high-temperature medium inlet of the raw material preheater 109 through a condensed water recycling pipeline 117. The high-temperature medium outlet of the raw material preheater 109 is connected to a product line 118.
Further, a low-temperature medium inlet of the raw material preheater 109 is connected with a raw material pure water source through a system raw material pure water pump 101 through a pipeline, a low-temperature medium outlet of the raw material preheater 109 is connected with a low-temperature medium inlet of the condenser 103 in the heat source module through a pipeline, and a low-temperature medium outlet of the condenser 103 in the heat source module is connected with a feeding pipeline of the first-effect horizontal tube falling-film evaporator 105. Namely, the condensed water of the last effect horizontal tube falling film evaporator 108 is used as the heat source of the raw material preheater 109 to preheat the raw material pure water; then, the industrial steam of the steam generator 102 is used as a heat source of the condenser 103, and the raw material pure water is preheated again; the raw material pure water enters the first-effect horizontal tube falling-film evaporator 105 after being preheated by the raw material preheater 109 and the condenser 103 in sequence.
The storage module comprises a product pipeline 118 and a product storage tank 123.
One end of the product line 118 is communicated with the high-temperature medium outlet of the raw material preheater 109, and the other end of the product line 118 is communicated with the first branch pipe 119 and the second branch pipe 120. A product pump 121 and a sampling detection device 122 are arranged on the product pipeline 118, and the product pump 121 is used for conveying condensed water in the raw material preheater 109 to the first branch pipe 119 or the second branch pipe 120; the sampling device 122 is used to detect the condensed water in the product pipeline 118, and in this embodiment, the existing water quality analyzing sampling device 122 can be used.
Further, when the sampling device 122 detects that the condensed water meets the water quality requirement of the medical injection water, the condensed water is delivered to the product storage tank 123 through the first branch pipe 119 as qualified product water.
Further, when the sampling and detecting device 122 detects that the condensed water does not meet the quality requirement of the medical injection water, the condensed water is discharged as unqualified product water through the second branch pipe 120.
The product storage tank 123 is adapted to receive and store the qualified product water delivered by the first branch 119.
As shown in fig. 2, the control unit includes a detection module, a control module, a processing module, an execution module, and a storage calculation module.
The detection module is arranged on the heat source module, the preparation module and the storage module and used for detecting and acquiring real-time data of each module and sending acquired operation data to the control module.
In this embodiment, the real-time data includes: the liquid level value, the temperature value and the pressure value of the steam generator 102, the feeding pressure value and the flow value of a heat source (industrial steam) of the steam generator 102, the feeding pressure value and the flow value of raw materials (pure water) of the steam generator 102, the pressure value and the mass flow value of a primary inflow inlet 1041 of the steam ejector 104, the mass flow value of a secondary inflow inlet 1042 of the steam ejector 104, the mass flow value, the temperature value and the pressure value of a steam outlet 1043 of the steam ejector, the feeding pressure value, the temperature value and the flow value of system raw materials (pure water), the pressure value, the temperature value, the liquid level value and the discharge flow value of the first-effect horizontal tube falling film evaporator 105, the pressure value, the temperature value, the liquid level value and the discharge flow value of other effect horizontal tube falling film evaporators, the outlet temperature value of the condenser 103, and the temperature value, the liquid level value and product water quality indexes of a finished product tank.
Specifically, the arrangement of the detection module in the heat source module, the preparation module and the storage module is as follows: the steam generator 102 is provided with a temperature detection device, a pressure detection device and a liquid level detection device; a pressure detection device and a flow detection device are arranged on a heat source (industrial steam) feeding pipeline of the steam generator 102; a raw material (pure water) feeding pipeline of the steam generator 102 is provided with a pressure detection device and a flow detection device; a pressure detection device and a mass flow detection device are arranged on a pipeline from the steam generator 102 to a primary inlet 1041 of the steam ejector 104; a mass flow detection device, a temperature detection device and a pressure detection device are arranged on a pipeline between the steam outlet 1043 of the steam ejector and the first-effect transverse pipe falling-film evaporator 105; each effect horizontal tube falling film evaporator is provided with a pressure detection device, a temperature detection device and a liquid level detection device; a flow detection device is arranged on a condensate pipeline 112 between the first-effect and second-effect transverse tube falling-film evaporators 106; a flow detection device is arranged on a residual evaporation water pipeline 111 between the first-effect and second-effect transverse pipe falling-film evaporators 106; a flow detection device is arranged on a condensate pipeline between the second-effect to third-effect horizontal tube falling-film evaporators 107; a flow detection device is arranged on a residual evaporation water pipeline between the second-effect to third-effect horizontal tube falling-film evaporators 107; a flow detection device is arranged on a condensate pipeline between the third-effect to last-effect transverse pipe falling-film evaporators 108; a flow detection device is arranged on a residual evaporation water pipeline between the third-effect to last-effect transverse pipe falling-film evaporators 108; a flow detection device is arranged on a condensed water recycling pipeline 117 between the last effect horizontal tube falling film evaporator 108 and the raw material preheater 109; a mass flow detection device is arranged on a last-effect steam pipeline 114 between the last-effect horizontal tube falling film evaporator 108 and a secondary inflow port 1042 of the steam ejector 104; a flow detection device is arranged on a residual evaporation water recycling pipeline 115 between the last-effect horizontal-tube falling-film evaporator 108 and a system raw material pure water feeding pipeline 116; a flow detection device, a temperature detection device and a pressure detection device are arranged on the system raw material pure water feeding pipeline 116; a liquid level detection device is arranged on the raw material preheater 109; a temperature detection device is arranged on a pipeline between the condenser 103 and the first-effect horizontal tube falling-film evaporator 105; the product line 118 is provided with a pressure detection device; the product pipeline 118 is provided with a water quality analysis sampling detection device 122; the first branch pipe 119 is provided with a flow rate detecting device.
It can be understood that the liquid level detection device, the temperature detection device, the pressure detection device, the mass flow detection device, the flow detection device, etc. employed in the foregoing detection module can all achieve their functions by employing the existing devices such as a liquid level sensor, a temperature sensor, a pressure sensor, a mass flow sensor, a flow sensor, etc.
Furthermore, the real-time data and detection acquisition mode of each module is only one type and mode provided by the embodiment of the application, and does not represent only one type and mode. In specific implementation, the more comprehensive the data of each module and the more accurate the detected operation data are, the more accurate the output data finally calculated by the processing module is, the more the medical injection water preparation system can be controlled to approach the optimal operation state.
The control module is used for converting the real-time data of each module collected by the detection module into operation data and sending the operation data to the processing module; and meanwhile, the control module is also used for sending a control instruction to the execution module according to the output data sent by the processing module.
The processing module is used for acquiring the operation data sent by the control module, calculating output data according to the operation data through a pre-established algorithm model, and sending the output data to the control module, so that the control module can send a control instruction to the execution module according to the output data, and system indexes not limited in the following aspects are realized: (1) the pressure in the steam generator 102 is kept within the range of 0.4-0.8MPa, and the liquid level is kept within the range of 5-35 cm;
(2) the steam injected from the steam outlet 1043 of the steam injector is maintained at 112-125 ℃ saturated steam, preferably 115 ℃;
(3) the temperature drop between two adjacent horizontal tube falling film evaporators is kept within the range of 3-5 ℃;
(4) the water making ratio of qualified product water of the medical injection water preparation system is not less than 8.
The pre-established algorithm model can be a logic control algorithm model which is set by manual editing. For the realization of the system index "the steam injected from the steam outlet 1043 of the steam injector is maintained as 112-125 ℃ saturated steam, preferably 115 ℃ saturated steam", the steam mass flow Meo, the pressure Peo and the temperature Teo of the steam outlet 1043 of the steam injector can be obtained by detecting according to the mass flow detection device, the temperature detection device and the pressure detection device arranged on the pipeline between the steam outlet 1043 of the steam injector and the first-effect horizontal-tube falling-film evaporator 105, the steam superheat Tsh can be obtained by calculation, and then the pure water mass flow Mpi of the spraying device 110 arranged on the pipeline at the steam outlet of the steam injector 104 can be obtained by calculating based on the following formula:
similarly, the water production ratio of the medical water for injection preparation system can be obtained by calculating the ratio of the water production of the system to the steam consumption of the system.
Further, the pre-established algorithm model may also be an algorithm model constructed based on a machine learning technique. The algorithm model constructed based on the machine learning technology is established by training of multiple groups of training data, wherein the multiple groups of training data at least comprise six types of data.
Wherein the first type of data comprises: and the steam at the outlet of the ejector is real-time data of the medical injection water preparation system under the condition of saturated steam.
The second type of data includes: and under the condition that the steam at the outlet of the ejector is superheated steam, the real-time data of the medical injection water preparation system are obtained.
The third type of data includes at least: real-time data of the medical injection water preparation system when the steam at the outlet of the ejector is converted from saturated steam to superheated steam.
The fourth type of data includes at least: real-time data of the medical injection water preparation system under the condition that steam at the outlet of the ejector is converted from superheated steam into saturated steam.
The fifth type of data includes at least: and in the driving process of the medical injection water preparation system, real-time data of the medical injection water preparation system are obtained.
The sixth type of data includes at least: and in the stopping process of the medical injection water preparation system, real-time data of the medical injection water preparation system are obtained.
The real-time data for training comprises: a liquid level value, a temperature value, a pressure value of the steam generator 102, a feeding pressure value and a flow value of a heat source (industrial steam) of the steam generator 102, an opening degree of an inlet valve 202 of the industrial steam of the steam generator 102, a feeding pressure value and a flow value of a raw material (pure water) of the steam generator 102, an opening degree of a raw material pure water feeding valve 201 of the steam generator 102, a valve opening degree of a primary inlet 1041 of the steam ejector 104, a frequency of a raw material pure water pump 101, a mass flow of spray water at a steam outlet 1043 of the steam ejector, a valve opening degree of a steam outlet shower pipe of the steam ejector, a pressure value and a mass flow value of a primary inlet 1041 of the steam ejector 104, a mass flow value of a secondary inlet 1042 of the steam ejector 104, a mass flow value, a temperature value and a pressure value of a steam outlet 1043 of the steam ejector, a feeding pressure value, a temperature value and a flow value of a system raw material (pure water), the system comprises a raw material pure water feed valve 201 opening degree, a pressure value, a temperature value, a liquid level value and a discharge flow value of a first-effect transverse-tube falling-film evaporator 105, pressure values, temperature values, liquid level values and discharge flow values of other effect transverse-tube falling-film evaporators, raw material water valve opening degrees among the effect transverse-tube falling-film evaporators, condensed water valve opening degrees among the effect transverse-tube falling-film evaporators, qualified product water valve opening degrees, unqualified product water valve opening degrees, a condenser 103 temperature value, a finished product tank temperature value, a liquid level value and a product water quality index; the temperature and superheat degree of steam sprayed from a steam outlet 1043 of the steam sprayer, the temperature difference between the two adjacent horizontal tube falling film evaporators, and the water making ratio and the water production efficiency of qualified product water prepared by the medical injection water preparation system.
Furthermore, the algorithm model can be continuously learned and optimized, so that the algorithm model is more perfect, the water generation ratio of qualified product water prepared by the medical injection water preparation system is further optimized, the heat transfer coefficient, the evaporation efficiency and the water generation efficiency of the medical injection water preparation system are further optimized, and the operation stability of the medical injection water preparation system is further ensured.
And the execution module is used for controlling and adjusting each control point position according to the control instruction. Specifically, the control points and variables include: the opening degree of a raw material pure water feed valve 201 arranged on a pipeline between the steam generator 102 and the raw material pure water pump 101; the opening degree of an industrial steam inlet valve 202 arranged on a high-temperature medium conveying pipeline of the steam generator 102; raw material pure water pump 101 frequency; a first air intake valve 203 opening degree provided in a pipe between the primary inlet 1041 of the steam injector 104 and the steam generator 102; the opening degree of a second air inlet valve 204 is arranged on a pipeline between the secondary inflow port 1042 of the steam ejector 104 and the last-effect horizontal tube falling film evaporator 108; the opening degree of a first spray water inlet valve 205 arranged on a spray pipeline at the steam outlet 1043 of the steam injector; the frequency of a system raw material pure water pump 101; the opening degree of a system feed valve 206 arranged on the system raw material pure water pipeline; a first evaporation residual water valve 207 with opening degree is arranged on an evaporation residual water pipeline 111 between the first effect and the second effect transverse pipe falling film evaporator 106; a second evaporation residual water valve 208 is arranged on an evaporation residual water pipeline between the second-effect to third-effect horizontal tube falling-film evaporators 107; a third evaporation residual water valve 209 is arranged on an evaporation residual water pipeline between the third-effect to last-effect transverse pipe falling-film evaporators 108; the opening degree of a first condensation water valve 210 is arranged on a condensation water pipeline 112 between the first-effect and second-effect transverse tube falling-film evaporators 106; a second condensate water valve 211 is arranged on a condensate pipeline between the second-effect to third-effect horizontal tube falling-film evaporators 107 in an opening degree; a third condensate water valve 212 is arranged on a condensate pipeline between the third-effect to last-effect horizontal tube falling-film evaporators 108; the opening degree of a residual evaporation water valve 213 arranged on a pipeline between the last effect horizontal tube falling film evaporator 108 and a system raw material pure water feeding pipeline 116; product pump 121 frequency; the opening degree of a qualified product water valve 214 arranged on the first branch pipe 119; the reject product water valve 215 is opened in the second branch line 120.
It should be further noted that, when data interaction between the execution module and the control module, and between the control module and the processing module, the data interaction may be transmitted in a wired communication manner or in a wireless communication manner. It can be understood that, due to the stability of the data transmission through the wired communication, the data interaction is preferably performed through the wired communication. Furthermore, in order to ensure the execution accuracy of the execution module, the execution module is further configured to feed back real-time state data thereof to the control module.
The storage calculation module is used for acquiring historical operating data, historical output data and historical control process data sent by the processing module, training an algorithm model according to the historical operating data, the historical output data and the historical control process data, and sending the trained algorithm model to the processing module.
It should be further noted that, when the medical water preparation system for injection operates, the processing module may send the historical operating data, the historical output data and the historical control process data to the storage calculation module, and the storage calculation module may train the algorithm model according to the historical operating data, the historical output data and the historical control process data of the medical water preparation system for injection through artificial intelligence machine learning, big data analysis and the like to form a new algorithm model, so that the processing module may calculate the output data through the new algorithm model. In particular embodiments, the memory computation module may then be equipped with at least one processing unit to increase the training speed of the algorithmic model.
The embodiment also provides a control method of the medical water for injection preparation system, which comprises the following steps:
s01: and (4) establishing an algorithm model in advance.
S02: and acquiring operation data.
S03: and calculating output data according to the operation data by using the algorithm model so as to adjust the medical injection water system according to the output data, so that the water generation ratio of qualified product water of the medical injection water preparation system is not less than 8.
As a preferred embodiment of the control method, the control method of the medical water for injection preparation system may further include:
s01: and (4) establishing an algorithm model in advance.
S02: and acquiring operation data.
S03: calculating output data according to the operation data by using an algorithm model so as to adjust the medical injection water system according to the output data, so that the medical injection water preparation system comprises: the pressure in the steam generator 102 is kept at 0.4-0.8MPa, and the liquid level is kept at 5-35 cm; the steam injected from the steam outlet 1043 of the steam injector is maintained at 112-125 ℃ saturated steam, preferably 115 ℃; the temperature drop between the adjacent two-effect horizontal tube falling-film evaporators is kept to be 3-5 ℃; the water making ratio of qualified product water of the medical injection water preparation system is not less than 8.
The control point location and the control variable comprise: the opening degree of a raw material pure water feed valve 201 arranged on a pipeline between the steam generator 102 and the raw material pure water pump 101; the opening degree of an industrial steam inlet valve 202 arranged on a high-temperature medium conveying pipeline of the steam generator 102; raw material pure water pump 101 frequency; a first air intake valve 203 opening degree provided in a pipe between the primary inlet 1041 of the steam injector 104 and the steam generator 102; the opening degree of a second air inlet valve 204 is arranged on a pipeline between the secondary inflow port 1042 of the steam ejector 104 and the last-effect horizontal tube falling film evaporator 108; the opening degree of a first spray water inlet valve 205 arranged on a spray pipeline at the steam outlet 1043 of the steam injector; the frequency of a system raw material pure water pump 101; the opening degree of a system feed valve 206 arranged on the system raw material pure water pipeline; a first evaporation residual water valve 207 with opening degree is arranged on an evaporation residual water pipeline 111 between the first effect and the second effect transverse pipe falling film evaporator 106; a second evaporation residual water valve 208 is arranged on an evaporation residual water pipeline 111 between the second-effect to third-effect horizontal tube falling-film evaporators 107 in an opening degree; a third evaporation residual water valve 209 is arranged on an evaporation residual water pipeline 111 between the third-effect to last-effect transverse pipe falling-film evaporators 108; the opening degree of a first condensation water valve 210 is arranged on a condensation water pipeline 112 between the first-effect and second-effect transverse tube falling-film evaporators 106; the opening degree of a second condensation water valve 211 is arranged on a condensation water pipeline 112 between the second-effect to third-effect horizontal tube falling-film evaporators 107; the opening degree of a third condensate water valve 212 arranged on the condensate water pipeline 112 between the third-effect to last-effect transverse tube falling-film evaporators 108; the opening degree of a residual evaporation water valve 213 arranged on a pipeline between the last effect horizontal tube falling film evaporator 108 and a system raw material pure water feeding pipeline 116; product pump 121 frequency; the opening degree of a qualified product water valve 214 arranged on the first branch pipe 119; the reject product water valve 215 is opened in the second branch line 120.
Further, in this embodiment, the medical water for injection preparation system may include:
the establishing module is used for establishing an algorithm model in advance;
the acquisition module is used for acquiring the operating data of the system;
and the calculation module is used for calculating output data according to the operation data through the algorithm model so as to adjust each control point position of the medical injection water system according to the output data, so that the water generation ratio of qualified product water prepared by the medical injection water preparation system is not less than 8.
Further, in this embodiment, the medical water for injection preparation system may further include:
a memory for storing a computer program;
and the processor is used for executing the computer program to realize the steps of the control method of the medical injection water preparation system.
The processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor may be implemented in at least one hardware form of digital signal processing, field programmable gate arrays, programmable logic arrays.
Further, in this embodiment, a computer-readable storage medium is further provided, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the control method for the medical water preparation for injection system.
In the medical water preparation system for injection, the system control unit detects and collects real-time data of each detection point through the detection module, adjusts each control point and variable of the execution module through the cooperative cooperation of the control module and the processing module, and couples each control variable to ensure the stable operation of the system. Meanwhile, in the running process of the system, the storage and calculation module continuously optimizes the algorithm model, so that the cooperative cooperation of all devices in the medical injection water preparation system is further improved, and the optimal running state of the system is continuously approached. The overheating phenomenon existing after pure water steam and supplementary steam are mixed in the prior art is effectively overcome, the problem that the thermal efficiency of the first-effect evaporator is insufficient is effectively solved, the first-effect evaporator can be effectively guaranteed to produce enough steam capable of effectively driving the second-effect evaporator, the whole injection water preparation system is stable in operation, and stable continuous and circulating operation can be realized. Meanwhile, the adverse working conditions of empty pipes, flooded pipes and the like in equipment between the multiple-effect falling-film evaporators arranged in series and the product water tank are effectively eliminated, the good heat exchange efficiency of the multiple-effect evaporators is effectively ensured, the previous evaporator can be effectively ensured to generate enough pressure driving force, raw material water, product water and steam can effectively enter the next evaporator, the effective matching of the multiple-effect evaporators is ensured, and the high operation stability and ideal water production efficiency of the injection water preparation system are further ensured. The medical injection water preparation system and the control method thereof can fully utilize a high-temperature heat source and step pressure driving, and achieve the excellent effect that the water making ratio (the ratio of water yield to steam consumption) of the qualified product water of the system is not less than 8.
All percentages used in the present invention are mass percentages unless otherwise indicated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A medical injection water preparation system is characterized by comprising a preparation unit and a control unit;
the preparation unit is used for preparing water for medical injection;
the control unit is arranged on the preparation unit and used for controlling and adjusting the preparation unit in the working process, so that the medical injection water preparation system comprises: the pressure in the steam generator (102) is kept between 0.4 and 0.8MPa, and the liquid level is kept between 5 and 35 cm; the steam sprayed from the steam outlet (1043) of the steam sprayer is maintained at 112-125 ℃ saturated steam; the temperature drop between the adjacent two-effect horizontal tube falling-film evaporators is kept to be 3-5 ℃; the water making ratio of qualified product water of the medical injection water preparation system is not less than 8.
2. The medical water for injection preparation system according to claim 1, wherein the steam injected by the steam injector steam outlet (1043) is maintained as saturated steam at 115 ℃.
3. The system for preparing water for medical injection according to claim 1, wherein the preparation unit comprises a heat source module, a preparation module, a storage module;
the heat source module is used for providing a heat source for the preparation module;
the preparation module adopts a heat source provided by the heat source module to carry out multi-effect evaporation treatment on the raw material pure water to prepare the medical injection water;
the storage module acquires and stores the medical injection water prepared by the preparation module.
4. The system for preparing water for medical injection according to claim 3, wherein the heat source module comprises: a steam generator (102), a condenser (103), a steam ejector (104);
the steam generator (102) is used for generating pure water steam as a heat source of the preparation module;
the condenser (103) is used for preheating raw material pure water of the medical injection water preparation system;
the steam ejector (104) is used for providing saturated steam with the temperature of 112-125 ℃ to the preparation module.
5. The system for preparing water for medical injection according to claim 4, wherein the preparation module comprises a plurality of horizontal tube falling film evaporators, a raw material preheater (109) connected in series in sequence;
in the plurality of horizontal tube falling-film evaporators connected in series in sequence, the evaporation residual water in the previous horizontal tube falling-film evaporator can enter the next horizontal tube falling-film evaporator to continue falling-film evaporation;
the horizontal tube falling film evaporator is used for performing falling film evaporation on raw material pure water to prepare water for medical injection;
the raw material preheater (109) is used for preheating the raw material pure water of the medical injection water preparation system before the condenser (103).
6. The medical water for injection preparation system according to claim 4, wherein said steam injector (104) is provided with a primary flow inlet (1041), a secondary flow inlet (1042), a steam injector steam outlet (1043);
the primary flow inlet (1041) is connected with a steam outlet of the steam generator (102);
the secondary inflow port (1042) is connected with a steam outlet of the last-effect horizontal tube falling-film evaporator (114);
the steam outlet (1043) of the steam ejector is provided with a spraying device (110);
the spraying device (110) can spray raw material pure water to the steam outlet (1043) of the steam injector, and is used for eliminating the superheat degree of steam sprayed by the steam outlet (1043) of the steam injector and keeping the steam to be saturated steam with the temperature of 112-.
7. The system for preparing water for medical injection according to claim 3, wherein the control unit comprises: the device comprises a detection module, a control module, a processing module and an execution module;
the heat source module, the preparation module and the storage module are arranged on the heat source module, and are used for detecting and acquiring real-time data of each module and sending the acquired operation data to the control module;
the real-time data comprises: a level value, a temperature value, a pressure value within the steam generator (102); a value of industrial steam feed pressure, flow rate of the steam generator (102); the pressure value and the flow value of the raw material pure water feeding of the steam generator (102); a pure water steam pressure value and a mass flow value of a primary inlet (1041) of the steam ejector; a secondary flow inlet (1042) of the steam ejector steam mass flow value; a steam mass flow value, a temperature value and a pressure value of a steam outlet (1043) of the steam ejector; the feeding pressure value, the temperature value and the flow value of the raw material pure water of the medical injection water system; the pressure value, the temperature value, the liquid level value and the discharge flow value of the first-effect horizontal tube falling-film evaporator (105); the pressure value, the temperature value, the liquid level value and the discharge flow value of the other-effect horizontal tube falling film evaporator; a condenser (103) outlet temperature value; temperature value, liquid level value and water quality index of the product water of the finished product tank (123).
8. The medical water for injection preparation system of claim 3, wherein the processing module is configured to obtain the operation data sent by the control module, calculate output data according to the operation data through a pre-established algorithm model, and send the output data to the control module, so that the control module sends a control command to the execution module according to the output data, so as to keep the following parameters of the medical water for injection preparation system within a predetermined range: the pressure and the liquid level of the steam generator (102), the steam parameters of a steam outlet (1043) of the steam ejector and the temperature drop between the two adjacent horizontal tube falling-film evaporators; the water making ratio of qualified product water of the medical injection water preparation system.
9. A control method of a medical water for injection preparation system, the control method comprising:
s01: an algorithm model is established in advance;
s02: acquiring operation data;
s03: and calculating output data according to the operation data by using the algorithm model so as to adjust the medical injection water system according to the output data, so that the water generation ratio of qualified product water of the medical injection water preparation system is not less than 8.
10. The control method of a medical water for injection preparation system according to claim 9, wherein the control method comprises:
s01: an algorithm model is established in advance;
s02: acquiring operation data;
s03: calculating output data according to the operation data by using an algorithm model so as to adjust the medical injection water system according to the output data, so that the medical injection water preparation system comprises: the pressure in the steam generator (102) is kept between 0.4 and 0.8MPa, and the liquid level is kept between 5 and 35 cm; the steam sprayed from the steam outlet (1043) of the steam sprayer is maintained at 112-125 ℃ saturated steam; the temperature drop between the adjacent two-effect horizontal tube falling-film evaporators is kept to be 3-5 ℃; the water making ratio of qualified product water of the medical injection water preparation system is not less than 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240172.2A CN113753994B (en) | 2021-10-25 | 2021-10-25 | Medical injection water preparation system and control method thereof |
| PCT/CN2022/097641 WO2023071204A1 (en) | 2021-10-25 | 2022-06-08 | Medical injection water preparation system and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240172.2A CN113753994B (en) | 2021-10-25 | 2021-10-25 | Medical injection water preparation system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113753994A true CN113753994A (en) | 2021-12-07 |
| CN113753994B CN113753994B (en) | 2022-09-13 |
Family
ID=78784359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111240172.2A Active CN113753994B (en) | 2021-10-25 | 2021-10-25 | Medical injection water preparation system and control method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113753994B (en) |
| WO (1) | WO2023071204A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071204A1 (en) * | 2021-10-25 | 2023-05-04 | 山东精鹰水务环境科技有限公司 | Medical injection water preparation system and control method therefor |
| CN117865268A (en) * | 2024-03-05 | 2024-04-12 | 山东迈沃净水科技有限公司 | Hot-pressing multi-effect distilled water machine system and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079845A (en) * | 2007-09-27 | 2009-04-16 | Hitachi Ltd | Feed water heater and power generation plant |
| CN103394203A (en) * | 2013-07-29 | 2013-11-20 | 广州中国科学院先进技术研究所 | Technology for preparing injection water through low temperature multi-effect distillation and system for implementing technology |
| CN205880689U (en) * | 2016-06-16 | 2017-01-11 | 楚天科技股份有限公司 | A injection water temperature control system for water distiller |
| CN212315610U (en) * | 2020-05-06 | 2021-01-08 | 上海复梓环保科技有限公司 | Multistage injection water preparation system |
| CN113087053A (en) * | 2021-04-08 | 2021-07-09 | 山东沃德净水科技有限公司 | Medical treatment injection water preparation system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209242715U (en) * | 2018-11-20 | 2019-08-13 | 连云港市华能电力辅机有限公司 | It is a kind of to prepare pure water system using waste heat multi-effect distilling |
| JP2020203231A (en) * | 2019-06-14 | 2020-12-24 | 日本碍子株式会社 | Membrane penetration water production apparatus and injection service water production system |
| CN112225276A (en) * | 2020-11-24 | 2021-01-15 | 上海凯贤流体科技有限公司 | Multi-mode production all-in-one machine for preparation of injection water and preparation of pure steam |
| CN112777665B (en) * | 2021-02-08 | 2022-02-15 | 中山大学 | Solar vacuum multistage tubular distillation system and method based on multi-objective optimization |
| CN113753994B (en) * | 2021-10-25 | 2022-09-13 | 山东沃德净水科技有限公司 | Medical injection water preparation system and control method thereof |
-
2021
- 2021-10-25 CN CN202111240172.2A patent/CN113753994B/en active Active
-
2022
- 2022-06-08 WO PCT/CN2022/097641 patent/WO2023071204A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079845A (en) * | 2007-09-27 | 2009-04-16 | Hitachi Ltd | Feed water heater and power generation plant |
| CN103394203A (en) * | 2013-07-29 | 2013-11-20 | 广州中国科学院先进技术研究所 | Technology for preparing injection water through low temperature multi-effect distillation and system for implementing technology |
| CN205880689U (en) * | 2016-06-16 | 2017-01-11 | 楚天科技股份有限公司 | A injection water temperature control system for water distiller |
| CN212315610U (en) * | 2020-05-06 | 2021-01-08 | 上海复梓环保科技有限公司 | Multistage injection water preparation system |
| CN113087053A (en) * | 2021-04-08 | 2021-07-09 | 山东沃德净水科技有限公司 | Medical treatment injection water preparation system |
Non-Patent Citations (6)
| Title |
|---|
| 《水工业市场》杂志社: "《2011水处理典型技术案例大全》", 31 March 2012, 中国环境科学出版社 * |
| 何志成: "《化工原理》", 31 August 2015, 中国医药科技出版社 * |
| 卢嘉锡等: "《高技术百科辞典》", 30 November 1994, 福建人民出版社 * |
| 李明昌: "《近岸海域污染综合管控与生境改善技术》", 30 October 2018, 天津大学出版社 * |
| 薛浩渊等: ""MED-TVC两级真空喷射泵模型分析及设计"", 《仪器仪表学报》 * |
| 郑宏飞等: "《太阳能海水淡化技术》", 31 May 2005, 北京理工大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071204A1 (en) * | 2021-10-25 | 2023-05-04 | 山东精鹰水务环境科技有限公司 | Medical injection water preparation system and control method therefor |
| CN117865268A (en) * | 2024-03-05 | 2024-04-12 | 山东迈沃净水科技有限公司 | Hot-pressing multi-effect distilled water machine system and control method thereof |
| CN117865268B (en) * | 2024-03-05 | 2024-05-14 | 山东迈沃净水科技有限公司 | Hot-pressing multi-effect distilled water machine system and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023071204A1 (en) | 2023-05-04 |
| CN113753994B (en) | 2022-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113753994B (en) | Medical injection water preparation system and control method thereof | |
| CN104192927A (en) | Phenol-acetone wastewater evaporation desalting pretreatment process | |
| CN105036223A (en) | High-efficiency energy-saving sewage treatment method and device | |
| CN212119064U (en) | Evaporation crystallization treatment production line | |
| CN204356186U (en) | The good antiscale property evaporative crystallization treatment system of coal-burning power plant's wet desulphurization waste water | |
| CN208603941U (en) | High-salt wastewater low-temperature evaporation device | |
| CN203829691U (en) | Liquid-gas linkage forced circulation hot pump low-temperature evaporation, concentration and crystallization device | |
| CN103342397A (en) | Energy-saving low-temperature multi-effect distillation sea water desalination method | |
| CN113087053A (en) | Medical treatment injection water preparation system | |
| CN211971803U (en) | Novel materialized wastewater triple-effect evaporation system | |
| CN108217794A (en) | It is a kind of can simultaneously a variety of waste liquids of crystallization treatment method and device | |
| CN208182650U (en) | Ammonium sulphate waste liquor desalting processing equipment | |
| CN206359376U (en) | A kind of sea water desalting equipment | |
| CN205023891U (en) | Crystallizing evaporator | |
| CN204873907U (en) | Hot pressing formula distilled water machine system | |
| CN103961896B (en) | A kind of forced circulation heat pump low-temperature evaporation concentration and crystallization device of liquid gas interlock | |
| CN107661640A (en) | A kind of MVR evaporation concentrators | |
| CN107857323A (en) | The apparatus and method handled with reference to MVR garbage percolation concentrate | |
| CN210728704U (en) | Linkage distillation tower boiling tower system | |
| CN206553222U (en) | A kind of sea water desalinating unit | |
| CN207918475U (en) | The device that garbage percolation concentrate is handled in conjunction with MVR | |
| CN205773473U (en) | A kind of brine waste spray evaporation processing system | |
| CN104944664A (en) | Countercurrent multi-effect evaporation coupling immersion pipe flashing composite distillation seawater desalination device and method | |
| CN201755417U (en) | Secondary waste steam introduction device in alkali evaporation station | |
| CN217430839U (en) | Automatic control device for evaporation concentration of gluconolactone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |