CN114768671A - Solution preparation and subpackage device - Google Patents
Solution preparation and subpackage device Download PDFInfo
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- CN114768671A CN114768671A CN202210261338.7A CN202210261338A CN114768671A CN 114768671 A CN114768671 A CN 114768671A CN 202210261338 A CN202210261338 A CN 202210261338A CN 114768671 A CN114768671 A CN 114768671A
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- dispensing
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- 238000002360 preparation method Methods 0.000 title claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 200
- 238000002156 mixing Methods 0.000 claims abstract description 28
- 239000000243 solution Substances 0.000 claims description 132
- 239000002699 waste material Substances 0.000 claims description 34
- 238000006073 displacement reaction Methods 0.000 claims description 29
- 239000011259 mixed solution Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 6
- 231100000331 toxic Toxicity 0.000 abstract description 6
- 230000002588 toxic effect Effects 0.000 abstract description 6
- 238000002474 experimental method Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 231100000419 toxicity Toxicity 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 238000002123 RNA extraction Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 229960000583 acetic acid Drugs 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 238000010171 animal model Methods 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7174—Feed mechanisms characterised by the means for feeding the components to the mixer using pistons, plungers or syringes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71745—Feed mechanisms characterised by the means for feeding the components to the mixer using pneumatic pressure, overpressure, gas or air pressure in a closed receptacle or circuit system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/75425—Discharge mechanisms characterised by the means for discharging the components from the mixer using pistons or plungers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/883—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using flow rate controls for feeding the substances
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Accessories For Mixers (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a solution preparation and subpackaging device, wherein the solution subpackaging device comprises a solution preparation assembly, a solution preparation assembly and a solution distribution assembly, wherein the solution preparation assembly comprises a plurality of first solution outlet devices; the liquid distribution assembly comprises a first cavity, the first cavity is communicated with the liquid outlets of the first liquid outlet devices, a mixing device is arranged in the first cavity, and the mixing device is used for mixing and distributing different solutions from the first liquid outlet devices; the liquid separating device comprises a second liquid outlet device, and a liquid inlet of the second liquid outlet device is communicated with the first cavity; the first liquid outlet device and the second liquid outlet device are both provided with a second cavity, the second cavity is provided with the liquid inlet and the liquid outlet, the liquid outlet is provided with an overflow valve, and the second cavity is internally provided with a liquid pushing assembly. The invention aims to solve the problems of low efficiency and great harm of manual preparation and subpackaging of the conventional toxic and volatile solution.
Description
Technical Field
The invention relates to the technical field of chemical solution preparation, in particular to a solution preparation and subpackaging device.
Background
The development of the fields of biochemistry and the like is not independent of various professional tests finished in laboratories by experimenters, and along with the expansion of knowledge, the experimental process inevitably uses solvents which are harmful and volatile to human bodies, such as concentrated hydrochloric acid, concentrated nitric acid, glacial acetic acid, methanol, concentrated ammonia water, diethyl ether, acetone, chloroform and other solutions, have toxicity or strong corrosiveness, have pungent smell and are easy to volatilize, and are mostly used for adjusting the pH value of the solution, electrophoretic buffer solution, silver mirror reaction, anaesthetizing experimental animals, wiping microscope oil mirrors, tissue fixation, RNA extraction experiments and the like. However, since such toxic solutions are extremely volatile and have a certain toxicity to human health, they generally need to be prepared and used immediately before the start of the experiment. And the solution preparation is carried out by using a measuring cylinder for measuring the volume, uniformly mixing a beaker and stirring a glass rod, so that not only is a huge burden brought to the experimental preparation, but also the toxic solution volatilized in the preparation process can cause certain harm to the bodies of experimenters. Except that scientific research experiment need prepare these poisonous volatile solutions in a large number, the student number is numerous in the teaching experiment, and the demand is also very big, and the manual work load of preparing solution of experimenter is big and be difficult to guarantee the precision, has the poor inefficiency of precision and endangers big problem.
Disclosure of Invention
The invention mainly aims to provide a solution preparation and subpackaging device, and aims to solve the problems of poor precision, low efficiency and large harm of manual preparation and subpackaging of the conventional toxic and volatile solution.
In order to achieve the above object, the present invention provides a solution preparing and dispensing device, wherein the solution preparing and dispensing device comprises:
the liquid preparation assembly comprises a plurality of first liquid outlet devices, and each first liquid outlet device is used for controlling a fixed amount of a solution to flow out;
the liquid preparation assembly comprises a first chamber, the first chamber is communicated with the liquid outlets of the first liquid outlet devices, a mixing device is arranged in the first chamber, and the mixing device is used for mixing and preparing different solutions from the first liquid outlet devices; and (c) a second step of,
the liquid separation assembly comprises a second liquid outlet device, a liquid inlet of the second liquid outlet device is communicated with the first cavity, and the second liquid outlet device is used for controlling a quantitative mixed solution to flow out;
the liquid outlet is provided with an overflow valve, and the second cavity is internally provided with a liquid pushing assembly which is used for pushing quantitative solution to the liquid outlet so as to open the overflow valve to enable the solution to flow out.
Optionally, a flow sensing device is disposed in the second chamber for detecting a flow of the liquid flowing out of the second chamber.
Optionally, the second cavity is cylindric setting, and the sectional area is S, the liquid outlet with the inlet set up in the one end of second cavity, the liquid pushing component includes:
the piston rod is arranged at the end part of the other end of the second chamber and can be movably arranged along the axial direction of the second chamber; and (c) a second step of,
the driving assembly is used for driving the piston rod to move towards the liquid outlet;
the flow sensing device comprises a displacement sensor fixed on the piston rod and used for detecting the distance L of the piston rod moving towards the liquid outlet, and the volume V of the flowing liquid is S.L.
Optionally, the driving assembly includes an air pump, the air pump communicates with the other end of the second chamber, and the air pump is configured to provide air pressure to push the piston rod to move.
Optionally, the rated air pressure provided by the air pump is P, and the threshold pressure of the overflow valve is P0If P is equal to P0。
Optionally, an elastic structure is connected between the piston rod and the end of the other end of the second chamber;
the other end of the second cavity is also provided with an exhaust port, and the exhaust port is used for pressure relief to enable the elastic structure to drive the piston rod to return to the end part of the other end of the second cavity.
Optionally, the second chambers of the first liquid outlet devices are communicated with the same air pump.
Optionally, the second chamber is further communicated with a waste liquid tank, and when the waste liquid tank is opened, the solution in the second chamber can be recovered to the waste liquid tank.
Optionally, the waste liquid tank connected to the second chamber of the second liquid outlet device is further provided with a waste liquid outlet for communicating with a sewer.
Optionally, the mixing device comprises a stirrer.
According to the technical scheme, the liquid preparation assembly and the liquid distribution assembly are arranged, one solution is respectively contained in the plurality of first liquid outlet devices in the liquid preparation assembly, the independent use amount of each solution is given when the liquid preparation assembly is required to be used, the solution is controlled to be quantitatively fed to the liquid distribution assembly through the first liquid outlet devices, the plurality of solutions are mixed through the mixing device in the liquid preparation assembly to prepare a required mixed solution, the mixed solution is guided into the liquid distribution assembly, and the quantitative split charging of the solution in the liquid distribution assembly is realized by controlling the quantitative solution discharged through each action through the second liquid outlet device in the liquid distribution assembly. Realize the accurate ration partial shipment of solution after multiple solution ration is accomplished with preparation through the integrated device, satisfy the big dose in the process of the experiment and prepare demand and the experimental demand of little dose partial shipment distribution, need not the manual work and prepare the partial shipment and prepare the process totally enclosed and also avoided harmful volatile solution to volatilize to make the experimenter inhale or contact in the air and receive the injury when efficient. Specifically, the first liquid outlet device and the second liquid outlet device are both provided with the second chambers, the liquid inlet of the second chamber of each first liquid outlet device is used for placing a single required solution, the liquid outlet is communicated with the first chamber, and the liquid outlet is provided with the overflow valve for controlling the opening and closing of the liquid outlet so as to be matched with the liquid pushing assembly to realize the control of the liquid consumption, so that the control is more accurate compared with manual control; the liquid inlet of the second cavity of the second liquid outlet device is communicated with the first cavity, after the solution is prepared by the solution preparation assembly, the solution is guided into the second cavity of the second liquid outlet device, the liquid outlet of the second liquid outlet device is also provided with the overflow valve, and the overflow valve is matched with the liquid pushing assembly to realize single quantitative discharge of the solution so as to realize liquid separation operation during experimental liquid taking.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a simplified plan view of an embodiment of a solution dispensing and packaging apparatus provided in the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The development of the fields of biochemistry and the like is not independent of various professional tests finished in laboratories by experimenters, and along with the expansion of knowledge, the experimental process inevitably uses solvents which are harmful and volatile to human bodies, such as concentrated hydrochloric acid, concentrated nitric acid, glacial acetic acid, methanol, concentrated ammonia water, diethyl ether, acetone, chloroform and other solutions, have toxicity or strong corrosiveness, have pungent smell and are easy to volatilize, and are mostly used for adjusting the pH value of the solution, electrophoretic buffer solution, silver mirror reaction, anaesthetizing experimental animals, wiping microscope oil mirrors, tissue fixation, RNA extraction experiments and the like. However, since such toxic solutions are extremely volatile and have a certain toxicity to human health, they generally need to be prepared and used immediately before the start of the experiment. And solution preparation is carried out by using a measuring cylinder for measuring volume, uniformly mixing a beaker and stirring a glass rod, so that huge burden is brought to experimental preparation, and toxic solution volatilized in the preparation process can also cause certain harm to the bodies of experimenters. Except that scientific research experiment need prepare these poisonous volatile solutions in a large number, the student number is numerous in the teaching experiment, and the demand is also very big, and the manual work load of preparing solution of experimenter is big and be difficult to guarantee the precision, has the poor inefficiency of precision and endangers big problem.
In view of the above, the present invention provides a solution preparing and dispensing device, and fig. 1 is an embodiment of the solution preparing and dispensing device provided by the present invention, which will be described below with reference to the specific drawings.
Referring to fig. 1, the solution preparing and dispensing device 100 includes a solution preparing assembly 1, a solution preparing assembly 2 and a solution dividing assembly 3, the solution preparing assembly 1 includes a plurality of first solution discharging devices 11, and each of the first solution discharging devices 11 is used for controlling a quantitative solution to flow out; the liquid preparation assembly 2 comprises a first chamber 21, the first chamber 21 is communicated with the liquid outlets 42 of the first liquid outlet devices 11, a mixing device 22 is arranged in the first chamber 21, and the mixing device 22 is used for mixing and preparing different solutions from the first liquid outlet devices 11; the liquid separation component 3 comprises a second liquid outlet device 31, a liquid inlet 41 of the second liquid outlet device 31 is communicated with the first cavity 21, and the second liquid outlet device 31 is used for controlling the outflow of a quantitative mixed solution; the first liquid outlet device 11 and the second liquid outlet device 31 are both provided with a second chamber 4, the second chamber 4 is provided with the liquid inlet 41 and the liquid outlet 42, the liquid outlet 42 is provided with an overflow valve 421, the second chamber 4 is provided with a liquid pushing assembly 43, and the liquid pushing assembly 43 is used for pushing a quantitative solution to the liquid outlet 42 to open the overflow valve 421 so as to enable the solution to flow out.
According to the technical scheme, the liquid preparation assembly 1, the liquid preparation assembly 2 and the liquid separation assembly 3 are arranged, one solution is respectively contained in the plurality of first liquid outlet devices 11 in the liquid preparation assembly 1, the single usage amount of each solution is set when the liquid preparation assembly is required to be used, the solution is controlled to be quantitatively fed to the liquid preparation assembly 2 through the first liquid outlet devices 11, the plurality of solutions are mixed through the mixing device 22 in the liquid preparation assembly 2 to prepare a required mixed solution, the mixed solution is led into the liquid separation assembly 3, and the quantitative split charging of the solution in the liquid separation assembly 3 is realized by controlling the second liquid outlet device 31 in the liquid separation assembly 3 to discharge the quantitative solution through each action. Realize the quantitative partial shipment of the accurate preparation of multiple solution ration and the solution after the preparation completion through integrated device, satisfy the big dose in the test process and prepare demand and the experimental demand of little dose partial shipment distribution, need not the manual work and prepare the partial shipment and prepare the process and seal completely and also avoided harmful volatile solution to volatilize to make the experimenter inhale or contact and receive the injury in the air when efficient. Specifically, the first liquid outlet device 11 and the second liquid outlet device 31 are both provided with the second chamber 4, the liquid inlet 41 of the second chamber 4 of each first liquid outlet device 11 is used for containing a single required solution, the liquid outlet 42 is communicated with the first chamber 21, and the liquid outlet 42 is provided with the overflow valve 421 to control the opening and closing of the liquid outlet 42 so as to cooperate with the liquid pushing assembly 43 to realize the control of the liquid consumption, which is more accurate compared with manual control; the liquid inlet 41 of the second chamber 4 of the second liquid outlet device 31 is communicated with the first chamber 21, after the solution preparation assembly 2 prepares the solution, the solution is introduced into the second chamber 4 of the second liquid outlet device 31, the liquid outlet 42 of the second liquid outlet device 31 is also provided with the overflow valve 421, and the overflow valve is matched with the liquid pushing assembly 43 to discharge the solution in a single quantitative manner, so that the liquid separation operation during the liquid taking of the experiment is realized.
It should be noted that the liquid inlets 41 of the first liquid outlet device 11 and the second liquid outlet device 31 are both provided with a valve body capable of being controlled to open and close, and the valve body can be a manually controlled valve body or an electromagnetic valve, and the electromagnetic valve is adopted in this embodiment, so that on one hand, the valve body can be electrically connected for operation in a remote manner, no additional operation area is required, and the installation and the use are convenient; on the other hand, the valve has control expansibility, for example, a setting program realizes automatic operation of the whole flow, or a monitoring system is additionally arranged to automatically monitor the state of each valve body, and the like, so that automatic control is realized.
Further, a flow sensing device 44 is disposed in the second chamber 4 for detecting the flow of the liquid flowing out of the second chamber 4. The second chamber 4 may be made of a non-transparent material, or the mounting position of the second chamber 4 may be located at an invisible position, so that monitoring of the solution amount cannot be achieved by setting scales on the second chamber 4, and the accuracy of manual visual detection is not very high, in this embodiment, the flow sensing device 44 is arranged in the second chamber 4 to automatically detect the flow amount, so that on one hand, manual participation is not needed, and the operation is simple and fast; on the other hand precision is high, promotes the accurate degree of preparing the partial shipment. The flow sensing means 44 may be a weight sensing means, and the total amount of the solution used is obtained by the weight difference of the second chamber 4; the total amount of the used solution can be obtained by directly measuring the total amount of the flow passing through the valve body, and the total amount of the used solution can be accurately obtained without limitation.
Specifically, the second chamber 4 is cylindrical, and has a cross-sectional area S, the liquid outlet 42 and the liquid inlet 41 are disposed at one end of the second chamber 4, the liquid pushing assembly 43 includes a piston rod 431 and a driving assembly 432, and the piston rod 431 is disposed at an end of the other end of the second chamber 4 and is movably disposed along an axial direction of the second chamber 4; the driving assembly 432 is used for driving the piston rod 431 to move towards the liquid outlet 42; the flow sensing device 44 includes a displacement sensor 44a fixed on the piston rod 431, and is configured to detect a distance L that the piston rod 431 moves toward the liquid outlet 42, so that a volume V of the liquid flowing out is equal to S · L. The second chamber 4 is configured like a syringe, and the piston rod 431 is used for pushing the liquid, which has the advantage of the syringe structure that the piston rod 431 is tightly sealed when moving, and the displacement of the piston rod 431 can indirectly reflect the volume of the solution flowing out. Certainly, the liquid pushing assembly 43 may also be a common liquid pushing rod, and the flow rate measurement is realized through the flow valve or the weight sensing device, but on one hand, the installation is difficult, and on the other hand, the flow rate measurement is easily influenced by external factors, and compared with the present embodiment, the piston rod 431 is provided, and the displacement sensor 44a is provided corresponding to the piston rod 431, the installation is convenient, and the piston rod 431 does not move randomly when being pressed, so that the measurement result is hardly influenced by external factors, and the measurement accuracy is higher.
It should be noted that the displacement sensor 44a may detect the displacement of the piston rod 431 by using a magnetic attraction structure, and the piston rod 431 in the second chamber 4 drives the structure outside the second chamber 4 to move synchronously, so that the displacement sensor 44a detects the structure outside the second chamber 4 to obtain the displacement of the piston rod 431, and this way has a small occupied area, is convenient for installation, and has a certain influence on the measurement accuracy; the displacement of the part of the piston rod 431 not extending into the second chamber 4 may also be detected, which has little influence on the precision but requires a large installation space due to the long length of the piston rod 431; other methods such as visual sensing, magnetic sensing, etc. may also be adopted, and the piston rod 431 is provided with a sensing structure so that the displacement sensor 44a outside the second chamber 4 can sense the displacement of the piston rod 431 inside the second chamber 4, which has a small occupied area and high accuracy, but is difficult to maintain after failure. The above cases are good and bad, but the displacement can be detected, and the actual use case may be selected without limitation.
Specifically, the driving assembly 432 includes an air pump 432a, the air pump 432a is communicated with the other end of the second chamber 4, and the air pump 432a is used for providing air pressure to push the piston rod 431 to move. The driving assembly may be a hydraulic rod, an air cylinder, an air pump, or the like, and in this embodiment, the driving assembly is configured as the air pump 432a, and the air pump 432a provides stable air pressure to push the piston rod 431, so that on one hand, no additional mechanical structure is required for air pushing, and the installation and use are convenient; on the other hand, the air pressure can ensure that the piston rod 431 is uniformly stressed, and the problem that the piston rod 431 is inclined to cause measurement deviation and even the piston rod 431 is blocked is avoided. If the piston rod 431 is driven by air pressure, i.e., if the sealing performance needs to be ensured, the displacement sensor 44a cannot detect the displacement of the piston rod 431 by, for example, detecting the displacement of a portion of the piston rod 431 that does not extend into the second chamber 4.
Further, the rated air pressure provided by the air pump 432a is P, and the threshold pressure of the relief valve 421 is P0If P is equal to P0. When the piston rod 431 is normally driven, under the control of the threshold pressure of the overflow valve 421, the hydraulic pressure of the piston rod 431 on one side of the solution should be equal to the threshold pressure of the overflow valve 421, so the rated air pressure of the air pump 432a must be greater than or equal to the threshold pressure of the overflow valve 421, and the piston rod 431 is driven to push the solution to open the overflow valve 421. If the rated air pressure of the air pump 432a is greater than the threshold pressure of the overflow valve 421, when the air pump 432a stops working, the air pressure on one side of the piston rod 431 pushed by air decreases, and even if the rate of the decrease of the air pressure is extremely high, the situation that the air pressure is greater than the hydraulic pressure on the other side of the piston rod 431 exists, so that the overflow valve 421 cannot respond to closing in time after the air pump 432a is closed, and the problem of inaccurate preparation caused by too much outflow solution is caused. Therefore, in this embodiment, the rated air pressure of the air pump 432a is set to be equal to the threshold pressure of the overflow valve 421, and during the normal operation, when the air pump 432a is opened, the pressures on both sides of the piston rod 431 are equal to the rated air pressure of the air pump 432a and the threshold pressure of the overflow valve 421,the overflow valve 421 is opened, and when the solution flowing out reaches the required volume of the solution, the air pump 432a is immediately stopped, and the air pressure at one side of the piston rod 431 pushed by the air is immediately lower than the threshold pressure of the overflow valve 421, so that the overflow valve 421 is quickly closed to avoid the situation that the solution additionally flows out due to inertia in the process of reducing the air pressure after the air pump 432a stops, and therefore in the pressure linkage between the overflow valve 421 and the air pump 432a, the effect of improving the closing sensitivity of the overflow valve 421 so as to improve the accuracy of solution preparation or split charging is achieved.
In addition, an elastic structure 45 is connected between the piston rod 431 and the end of the other end of the second chamber 4; the other end of the second chamber 4 is further provided with an exhaust port 46, and the exhaust port 46 is used for releasing pressure to enable the elastic structure 45 to drive the piston rod 431 to return to the end portion of the other end of the second chamber 4. Through setting up gas vent 46 is used for discharging completely the pump of air pump 432a is gone into the gas in the second chamber 4, sets up simultaneously elastic structure 45 can be with having accomplished after pushing solution outflow action piston rod 431 takes back and is close to one side of air pump 432a to keep the maximization of the volume of second chamber 4 solution side, the complete cleaning to the inner wall of holding solution side when also being convenient for simultaneously wash, avoid piston rod 431 blocks the washing to the inner wall when not returning. Elastic structure 45 can be spring or elasticity rubber etc. adopts the spring structure in this embodiment, simple structure and low price, and the practicality is strong.
In addition, the second chambers 4 of the first liquid outlet devices 11 are communicated with the same air pump 432 a. The air pump 432a drives the plurality of first liquid outlet devices 11, so that the number of the air pumps 432a is reduced to reduce the cost, and meanwhile, the valve bodies are synchronously arranged between the air pump 432a and each first liquid outlet device 11, and the order of mixing the solution in the first liquid outlet devices 11 into the first chamber 21 can be controlled by controlling the air feeding direction of the air pump 432a, thereby avoiding possible false reaction, dangerous reaction and the like caused by different mixing orders of the solution. The second chamber 4 of the second dispensing device 31 uses the independent air pump 432a, and a valve body is also arranged between the air pump 432a and the second chamber 4, the valve body is used for opening when a fixed amount of solution needs to be dispensed so that air pressure pushes the piston rod 431 to flow out, the valve body is closed after a preset amount is reached, the gas at the gas side of the piston rod 431 is prevented from overflowing at the air pump 432a, the piston rod 431 can be kept still by keeping pressure, when next dispensing operation is performed, the valve body is opened so that the piston rod 431 can be continuously pushed in by the last dispensing operation, the same moving distance of the piston rod 431 detected by the displacement sensor 44a in each dispensing operation is equal to the mixed solution with a corresponding amount, the piston rod 431 is prevented from returning after one dispensing operation, and when dispensing is performed again, the displacement sensor 44a detects the same displacement and the amount of discharged liquid decreases.
In addition, the second chamber 4 is also communicated with a waste liquid tank 5, and when the waste liquid tank 5 is opened, the solution in the second chamber 4 can be recovered to the waste liquid tank 5. Most of the solutions used in the laboratory cannot be directly drained through a sewer, and special management and treatment measures need to be set, so in this embodiment, each second chamber 4 is communicated with one waste liquid tank 5, and the solutions in the second chambers 4 are emptied through the waste liquid tanks 5 so as to facilitate cleaning of the second chambers 4 and treatment of waste liquid. The waste liquid tank 5 can be movably connected to the second chamber 4, so that the waste liquid tank 5 filled with waste liquid can be taken out for treatment; or may be fixedly connected to the second chamber 4, and an additional processing device and a discharge system may be provided to process and discharge the waste liquid in the waste liquid tank 5. The former is convenient to operate and convenient for manual targeted treatment, and the latter is automatic treatment, and can treat the waste liquid in the waste liquid tank 5, and is not limited herein.
Further, the waste liquid tank 5 connected to the second chamber 4 of the second liquid outlet device 31 is further provided with a waste liquid outlet 51 for communicating with a sewer. When the prepared solution can be directly discharged in the evaluation, the solution in the second chamber 4 of the second liquid outlet device 31 can be directly discharged, so that the waste liquid tank 5 is arranged on the second chamber 4 of the second liquid outlet device 31 and simultaneously the waste liquid tank 5 is communicated with a sewer, on one hand, when the solution which cannot be directly discharged is encountered, the solution can be treated by dismounting the waste liquid tank 5, on the other hand, when the solution can be directly discharged, the solution can directly flow to the sewer through the waste liquid tank 5, the treatment modes required by the two conditions can be finished without additionally arranging a structure, and the structure is simple and convenient to install.
Furthermore, the mixing device 22 comprises a stirrer 22 a. The mixing device 22 may adopt pneumatic mixing, magnetomotive mixing or mechanical mixing, etc., in this embodiment, the mechanical mixing is adopted, the mixing device 22 is directly set as a mechanical stirrer 22a, and the solution is stirred by rotating operation to realize mixing, so that the structure is simple and stable, and the service life is long, and the maintenance is convenient.
In addition, the liquid outlet 42 of the second chamber 4 of the second liquid outlet device 31 is further provided with a flow meter, and the flow meter is arranged at the downstream of the overflow valve 421 for visually detecting the flow of the flowing solution, and the operation condition of the solution preparing and dispensing device 100 is referred to for detection, so that the flow monitoring and the equipment operation maintenance detection are facilitated.
Specifically, the present invention further provides an operating method for the solution preparing and dispensing device 100, the operating method comprises a preparing step, a dispensing step and a cleaning step, and the preparing step comprises: firstly, determining the type of the required solution and the required volume of each solution, setting the displacement set by the displacement sensor 44a of each first liquid outlet device 11 according to the required volume, setting the threshold pressure of the overflow valve 421 according to the rated air pressure of the air pump 432a, placing each solution into the corresponding first liquid outlet device 11 to fill the second chamber 4, closing the second chamber 4, opening the displacement sensors 44a one by one according to the solution adding sequence and communicating the air pump 432a, closing the valve body on the air path of the corresponding air pump 432a when the displacement sensor 44a detects that the piston rod 431 moves to reach the set displacement to complete the step of placing the first solution into the first chamber 21, and sequentially opening the valve body on the air pump 432a of the second liquid outlet device 11 to perform the step of placing the second solution, after the steps of putting all the solutions are completed in sequence, the first chamber 21 is closed, and the stirrer 22a is started for five minutes to stir and mix the solutions in the first chamber 21 uniformly.
Further, the sub-packaging step comprises: firstly, the volume of each solution to be dispensed is determined, the displacement set by the displacement sensor 44a of the second liquid outlet device 31 is set according to the required volume, setting the threshold pressure of the overflow valve 421 according to the rated air pressure of the air pump 432a, opening a valve body between the first chamber 21 and the second liquid outlet device 31 to make the mixed solution fill the second chamber 4 of the second liquid outlet device 31, closing the second chamber 4, opening the displacement sensor 44a and the air pump 432a, placing a container when the solution needs to be obtained, and controlling to open the valve body on the air path of the air pump 432a, and the displacement sensor 44a detects that the piston rod 431 moves to reach the set displacement, closes the valve body to complete the step of primary solution subpackaging, and changes the container to trigger the valve body on the air passage of the air pump 432a again to continuously subpackage until the subpackaging is finished.
Still further, the cleaning step comprises: opening the exhaust port 46 of each second chamber 4 to make the piston rod 431 return to the initial position under the pulling force of the elastic structure 45, opening each waste liquid tank 5 to collect and discharge waste liquid in the second chamber 4 and then closing the same, controlling the valve body to open and close to make the first chamber 21 and the plurality of second chambers 4 communicate and integrally seal to form an integral chamber, setting the threshold pressure of the overflow valve 421 of the first liquid outlet device 11 to zero, selecting one first liquid outlet device 11 to open the liquid inlet 41 to fill with clear water, making the clear water flow through the first chamber 21 to the plurality of second chambers 4 in sequence, opening the waste liquid tank 5 of the second liquid outlet device 31 and opening the waste liquid outlet 51 at the same time, making the flushed clear water flow from the waste liquid tank 5 of the second liquid outlet device 31 to finish the cleaning of the solution preparing and packaging device 100, finally, all valve bodies and the air pump 432a are closed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A solution preparation and split charging device is characterized by comprising:
the liquid preparation assembly comprises a plurality of first liquid outlet devices, and each first liquid outlet device is used for controlling a fixed amount of a solution to flow out;
the liquid distribution assembly comprises a first cavity, the first cavity is communicated with the liquid outlets of the first liquid outlet devices, a mixing device is arranged in the first cavity, and the mixing device is used for mixing and distributing different solutions from the first liquid outlet devices; and (c) a second step of,
the liquid distribution assembly comprises a second liquid outlet device, a liquid inlet of the second liquid outlet device is communicated with the first cavity, and the second liquid outlet device is used for controlling a quantitative mixed solution to flow out;
the liquid outlet is provided with an overflow valve, and the second cavity is internally provided with a liquid pushing assembly which is used for pushing quantitative solution to the liquid outlet so as to open the overflow valve to enable the solution to flow out.
2. The dispensing apparatus for dispensing a dispensing solution of claim 1 wherein a flow sensing device is disposed within the second chamber for sensing the flow of liquid from the second chamber.
3. The solution preparation and dispensing device of claim 2, wherein the second chamber is cylindrical and has a cross-sectional area S, the liquid outlet and the liquid inlet are disposed at one end of the second chamber, and the liquid pushing assembly comprises:
the piston rod is arranged at the end part of the other end of the second chamber and can be movably arranged along the axial direction of the second chamber; and the number of the first and second groups,
the driving assembly is used for driving the piston rod to move towards the liquid outlet;
the flow sensing device comprises a displacement sensor fixed on the piston rod and used for detecting the distance L of the piston rod moving towards the liquid outlet, and the volume V of the liquid flowing out is S.L.
4. The solution dispensing apparatus as set forth in claim 3, wherein the driving assembly comprises an air pump connected to the other end of the second chamber, the air pump being configured to provide air pressure to move the piston rod.
5. The solution preparation and dispensing device of claim 4, wherein the air pump provides a nominal air pressure of P, and the relief valve has a threshold pressure of P0If P is equal to P0。
6. The dispensing apparatus for dispensing a solution as set forth in claim 4 wherein an elastic structure is connected between said piston rod and the end of the other end of said second chamber;
the other end of the second chamber is also provided with an exhaust port, and the exhaust port is used for pressure relief to enable the elastic structure to drive the piston rod to return to the end part of the other end of the second chamber.
7. The dispensing device for dispensing solutions of claim 4 wherein the second chambers of the first dispensing devices are connected to the same air pump.
8. The dispensing apparatus for dispensing a compound solution as set forth in claim 1 wherein the second chamber is further connected to a waste tank, and the solution in the second chamber is recycled to the waste tank when the waste tank is opened.
9. The dispensing apparatus for dispensing solutions as set forth in claim 8, wherein the waste liquid tank connected to the second chamber of the second dispensing apparatus further comprises a waste liquid outlet for connecting a sewer.
10. The solution dispensing apparatus of claim 1, wherein the mixing device comprises a stirrer.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261338.7A CN114768671B (en) | 2022-03-14 | 2022-03-14 | Solution preparation and split charging device |
| LU503533A LU503533B1 (en) | 2022-03-14 | 2022-11-02 | Solution preparation and dispensation device |
| PCT/CN2022/129374 WO2023173761A1 (en) | 2022-03-14 | 2022-11-02 | Solution blending and sub-packaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261338.7A CN114768671B (en) | 2022-03-14 | 2022-03-14 | Solution preparation and split charging device |
Publications (2)
| Publication Number | Publication Date |
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| CN114768671A true CN114768671A (en) | 2022-07-22 |
| CN114768671B CN114768671B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210261338.7A Active CN114768671B (en) | 2022-03-14 | 2022-03-14 | Solution preparation and split charging device |
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| Country | Link |
|---|---|
| CN (1) | CN114768671B (en) |
| LU (1) | LU503533B1 (en) |
| WO (1) | WO2023173761A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173761A1 (en) * | 2022-03-14 | 2023-09-21 | 湖北文理学院 | Solution blending and sub-packaging device |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1936588A (en) * | 2006-09-21 | 2007-03-28 | 上海交通大学 | Automatic distribution device of multiple trace liquids |
| CN102716685A (en) * | 2012-07-17 | 2012-10-10 | 上海禾高生物科技有限公司 | Continuous gradient mixing device and mixing method thereof |
| CN203479592U (en) * | 2013-09-29 | 2014-03-12 | 机科发展科技股份有限公司 | Liquid mixing and distributing device |
| US20150360251A1 (en) * | 2014-06-13 | 2015-12-17 | Creating Nano Technologies, Inc. | Extrusion device and coating system |
| CN105987745A (en) * | 2011-01-21 | 2016-10-05 | 莱伯曼兹有限公司 | Automated solution dispenser |
| CN106442075A (en) * | 2016-08-31 | 2017-02-22 | 华中科技大学 | Fully-automatic liquid mixing and changing device |
| CN109173917A (en) * | 2018-09-11 | 2019-01-11 | 西北工业大学 | A kind of high polymer concentrated solution Quick uniform dilution device |
| CN109268228A (en) * | 2017-07-17 | 2019-01-25 | 国家电投集团科学技术研究院有限公司 | Solution dispensed device and circulation of fluid circuit system with it |
| CN209254633U (en) * | 2018-09-29 | 2019-08-16 | 重庆医科大学附属永川医院 | Compounding device |
| CN210410402U (en) * | 2019-07-25 | 2020-04-28 | 晋江中纺标检测有限公司 | Automatic liquid device that joins in marriage of solution |
| CN111455632A (en) * | 2020-04-29 | 2020-07-28 | 浙江宏昌电器科技股份有限公司 | Liquid delivery system utilizing water pressure |
| CN112460000A (en) * | 2019-09-08 | 2021-03-09 | 湖南迪宏物联科技有限公司 | Pump and liquid conveying equipment |
| CN113512482A (en) * | 2021-04-01 | 2021-10-19 | 湖北文理学院 | Culture medium preparation system |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3684250A (en) * | 1970-06-24 | 1972-08-15 | Otto Engineering | Multi-component mixing apparatus |
| AU6017498A (en) * | 1997-01-10 | 1998-08-03 | Ernest G. Stewart | Point-of-sale cosmetic formulation apparatus and method |
| WO2006043642A1 (en) * | 2004-10-20 | 2006-04-27 | Ebara Corporation | Fluid reactor |
| EP2236201A1 (en) * | 2009-03-30 | 2010-10-06 | Fluid Solutions GmbH | Multi-component dosing plant |
| EP2836055B1 (en) * | 2012-04-06 | 2019-08-07 | Sumitomo Chemical Company, Limited | Coating system and method for manufacturing light-emitting device |
| CN109173761B (en) * | 2018-10-30 | 2022-02-11 | 湖南农业大学 | Micro-pressure injection-based online medicine mixing device and medicine mixing method |
| CN110386581A (en) * | 2019-08-27 | 2019-10-29 | 武汉国灸科技开发有限公司 | Multichannel micro fluid high-precision bulking system |
| CN111214972B (en) * | 2020-01-16 | 2022-06-14 | 北京北方华创微电子装备有限公司 | Liquid medicine proportioning method and liquid medicine proportioning device |
| CN215586008U (en) * | 2020-12-31 | 2022-01-21 | 上海至纯洁净系统科技股份有限公司 | Mixed acid device capable of controlling concentration of mixed acid in semiconductor wet cleaning solution |
| CN112892390B (en) * | 2021-01-28 | 2022-07-15 | 江西省奋发粘胶化工有限公司 | Intelligent color mixing equipment for silicone adhesive |
| CN114768671B (en) * | 2022-03-14 | 2024-02-09 | 湖北文理学院 | Solution preparation and split charging device |
-
2022
- 2022-03-14 CN CN202210261338.7A patent/CN114768671B/en active Active
- 2022-11-02 WO PCT/CN2022/129374 patent/WO2023173761A1/en unknown
- 2022-11-02 LU LU503533A patent/LU503533B1/en active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1936588A (en) * | 2006-09-21 | 2007-03-28 | 上海交通大学 | Automatic distribution device of multiple trace liquids |
| CN105987745A (en) * | 2011-01-21 | 2016-10-05 | 莱伯曼兹有限公司 | Automated solution dispenser |
| CN102716685A (en) * | 2012-07-17 | 2012-10-10 | 上海禾高生物科技有限公司 | Continuous gradient mixing device and mixing method thereof |
| CN203479592U (en) * | 2013-09-29 | 2014-03-12 | 机科发展科技股份有限公司 | Liquid mixing and distributing device |
| US20150360251A1 (en) * | 2014-06-13 | 2015-12-17 | Creating Nano Technologies, Inc. | Extrusion device and coating system |
| CN106442075A (en) * | 2016-08-31 | 2017-02-22 | 华中科技大学 | Fully-automatic liquid mixing and changing device |
| CN109268228A (en) * | 2017-07-17 | 2019-01-25 | 国家电投集团科学技术研究院有限公司 | Solution dispensed device and circulation of fluid circuit system with it |
| CN109173917A (en) * | 2018-09-11 | 2019-01-11 | 西北工业大学 | A kind of high polymer concentrated solution Quick uniform dilution device |
| CN209254633U (en) * | 2018-09-29 | 2019-08-16 | 重庆医科大学附属永川医院 | Compounding device |
| CN210410402U (en) * | 2019-07-25 | 2020-04-28 | 晋江中纺标检测有限公司 | Automatic liquid device that joins in marriage of solution |
| CN112460000A (en) * | 2019-09-08 | 2021-03-09 | 湖南迪宏物联科技有限公司 | Pump and liquid conveying equipment |
| CN111455632A (en) * | 2020-04-29 | 2020-07-28 | 浙江宏昌电器科技股份有限公司 | Liquid delivery system utilizing water pressure |
| CN113512482A (en) * | 2021-04-01 | 2021-10-19 | 湖北文理学院 | Culture medium preparation system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173761A1 (en) * | 2022-03-14 | 2023-09-21 | 湖北文理学院 | Solution blending and sub-packaging device |
Also Published As
| Publication number | Publication date |
|---|---|
| LU503533B1 (en) | 2024-01-22 |
| LU503533A1 (en) | 2023-09-14 |
| CN114768671B (en) | 2024-02-09 |
| WO2023173761A1 (en) | 2023-09-21 |
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