CN113154260A - Method for maintaining reagent delivery concentration - Google Patents
Method for maintaining reagent delivery concentration Download PDFInfo
- Publication number
- CN113154260A CN113154260A CN202110234186.7A CN202110234186A CN113154260A CN 113154260 A CN113154260 A CN 113154260A CN 202110234186 A CN202110234186 A CN 202110234186A CN 113154260 A CN113154260 A CN 113154260A
- Authority
- CN
- China
- Prior art keywords
- pipe
- anhydrous alcohol
- concentration
- maintaining
- anhydrous
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000006210 lotion Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- 239000003085 diluting agent Substances 0.000 claims description 10
- 239000003086 colorant Substances 0.000 claims description 9
- 229950011087 perflunafene Drugs 0.000 claims description 9
- UWEYRJFJVCLAGH-IJWZVTFUSA-N perfluorodecalin Chemical compound FC1(F)C(F)(F)C(F)(F)C(F)(F)[C@@]2(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)[C@@]21F UWEYRJFJVCLAGH-IJWZVTFUSA-N 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 8
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims description 6
- BELBBZDIHDAJOR-UHFFFAOYSA-N Phenolsulfonephthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2S(=O)(=O)O1 BELBBZDIHDAJOR-UHFFFAOYSA-N 0.000 claims description 6
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 6
- 229960003531 phenolsulfonphthalein Drugs 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 3
- OKJPEAGHQZHRQV-UHFFFAOYSA-N iodoform Chemical compound IC(I)I OKJPEAGHQZHRQV-UHFFFAOYSA-N 0.000 claims 2
- 239000007788 liquid Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/12—Arrangements for supervising or controlling working operations for injecting a composition into the line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Detergent Compositions (AREA)
Abstract
The application discloses a method for keeping reagent delivery concentration, which comprises the steps of introducing a first washing agent into a delivery pipe before anhydrous alcohol enters the delivery pipe; the first lotion is immiscible with the anhydrous alcohol. The method is simple and convenient to operate, and can effectively prevent the anhydrous alcohol from being diluted in the conveying pipeline, so that the conveying concentration of the anhydrous alcohol in the conveying pipeline is ensured, and the using amount of the anhydrous alcohol is accurately adjusted.
Description
Technical Field
The application relates to the technical field of reagent conveying, in particular to a method for maintaining reagent conveying concentration.
Background
At present, anhydrous alcohols are the most widely used hardeners.
The hardening effect of the anhydrous alcohol is closely related to the usage amount and concentration of the anhydrous alcohol, but the transportation pipeline is often filled with other aqueous liquid such as saline water during the use process, so the anhydrous alcohol is inevitably diluted in the transportation pipeline, and the concentration and the usage amount of the anhydrous alcohol cannot be controlled.
Therefore, how to provide a method for maintaining the delivery concentration of the reagent is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for maintaining reagent conveying concentration, which is simple and convenient to operate and can effectively prevent anhydrous alcohol from being diluted in a conveying pipeline, so that the conveying concentration of the anhydrous alcohol in the conveying pipeline is ensured, and the using amount of the anhydrous alcohol is accurately adjusted.
The invention provides a method for keeping reagent delivery concentration, which comprises the steps of introducing a first washing agent into a delivery pipe before anhydrous alcohol enters the delivery pipe; the first lotion is immiscible with the anhydrous alcohol.
Preferably, the anhydrous alcohol is anhydrous ethanol or anhydrous methanol.
Preferably, the first wash agent is a gas.
Preferably, the gas is one or two of air and inert gas.
Preferably, the first lotion is one or two of perfluorodecalin and iodized oil.
Preferably, the anhydrous alcohol is dissolved with a coloring agent, and the coloring agent is one or two of phenol red and methylene blue.
Preferably, the coloring agent is one or two of phenol red and methylene blue, and the dosage is determined according to the actual use requirement.
Preferably, the anhydrous alcohol further comprises a diluent that is miscible with the anhydrous alcohol.
Preferably, the injection amount of the first lotion is 0.2 to 1 ml.
Preferably, the injection amount of the first lotion is 0.2 to 0.3 ml.
Preferably, the conveying pipe comprises a main conveying pipe and a branch pipe communicated with the main conveying pipe, and a valve is arranged at the junction of the main conveying pipe and the branch pipe; the valve is used for controlling the on-off of the main conveying pipe and the on-off of the branch pipe; and after entering the main conveying pipe, the first lotion is output from the branch pipe.
Preferably, the output end of the branch pipe is connected with a flexible container.
Preferably, the flexible containing cavity is a flexible bag.
According to the method for keeping the reagent conveying concentration, before the anhydrous alcohol enters the conveying pipe, the first washing agent is introduced into the conveying pipe, residual liquid attached to the inner wall of the conveying pipe is removed through the first washing agent, the anhydrous alcohol is prevented from being diluted in the conveying pipe, the conveying concentration of the anhydrous alcohol in the conveying pipe is guaranteed, and the using amount of the anhydrous alcohol is accurately adjusted. Because the first lotion and the anhydrous alcohol are mutually insoluble, even if the first lotion remains in the conveying pipe in the conveying process of the anhydrous alcohol, the first lotion can not dilute the anhydrous alcohol, thereby influencing the concentration of the anhydrous alcohol.
According to the invention, the residual liquid in the delivery pipe is removed through the first lotion, so that the delivery concentration of the anhydrous alcohol can be ensured on the premise of not replacing the delivery pipe, the anhydrous alcohol is prevented from being diluted in the delivery pipe, the utilization rate of the delivery pipe can be improved, and the waste of medical equipment is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a delivery tube according to an embodiment of the present invention;
1-delivery pipe, 11-main delivery pipe, 12-branch pipe, 2-valve and 3-flexible container.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The invention provides a method for keeping reagent delivery concentration, which comprises the steps of introducing a first washing agent into a delivery pipe 1 before anhydrous alcohol enters the delivery pipe 1; the first lotion is immiscible with the anhydrous alcohol.
According to the method for keeping the reagent conveying concentration, before the anhydrous alcohol enters the conveying pipe 1, the first washing agent is introduced into the conveying pipe 1, residual liquid attached to the inner wall of the conveying pipe 1 is removed through the first washing agent, the anhydrous alcohol is prevented from being diluted in the conveying pipe 1, the conveying concentration of the anhydrous alcohol in the conveying pipe 1 is guaranteed, and the using amount of the anhydrous alcohol is accurately adjusted. Because the first lotion and the anhydrous alcohol are mutually insoluble, even if the first lotion remains in the conveying pipe 1 in the conveying process of the anhydrous alcohol, the first lotion can not dilute the anhydrous alcohol, thereby influencing the concentration of the anhydrous alcohol.
According to the invention, the residual liquid in the delivery pipe 1 is removed through the first lotion, so that the delivery concentration of the anhydrous alcohol can be ensured on the premise of not replacing the delivery pipe 1, the anhydrous alcohol is prevented from being diluted in the delivery pipe 1, the utilization rate of the delivery pipe 1 can be improved, and the waste of medical equipment is avoided.
Preferably, the anhydrous alcohol is anhydrous ethanol or anhydrous methanol.
Preferably, the first wash agent is a gas.
Because gas neither is mutually soluble with water, also is mutually soluble with anhydrous alcohol, consequently can discharge the residual liquid in conveyer pipe 1 through gas to avoid anhydrous alcohol to be diluted in conveyer pipe 1.
Preferably, the gas is one or both of air and an inert gas.
Preferably, the first lotion is one or two of perfluorodecalin and iodized oil.
Because perfluorodecalin or iodized oil are not mutually soluble with water nor absolute alcohol, the cleaning agent can be used as a first cleaning agent, and the absolute alcohol is prevented from being diluted in the conveying pipe 1.
Preferably, the anhydrous alcohol is dissolved with coloring agent, and the coloring agent is one or two of phenol red and methylene blue.
Since the anhydrous alcohol is a colorless liquid, when it is transferred in the transfer tube 1, the transfer stroke of the anhydrous alcohol in the transfer tube 1 is often not observed by naked eyes. In order to more directly observe the conveying stroke of the anhydrous alcohol and further accurately control the conveying amount of the anhydrous alcohol, the dye is dissolved in the anhydrous alcohol. The absolute alcohol is colored by adding the coloring agent, so that the conveying position can be directly observed by naked eyes in the conveying process.
Preferably, the coloring agent is one or two of phenol red and methylene blue, and the dosage is determined according to the actual use requirement.
Preferably, the anhydrous alcohol further comprises a diluent, and the diluent is compatible with the anhydrous alcohol.
For example, when the anhydrous alcohol is absolute ethanol/absolute methanol, the diluent may be water. During the operation, the adding amount of the diluent is selected according to the actual use requirement, and the concentration of the anhydrous alcohol can be kept to the actual required concentration by adjusting the concentration of the anhydrous alcohol through the diluent. For example, when 80% ethanol is desired, this can be achieved by adding a diluent to the absolute ethanol, wherein the diluent concentration is 20%.
Preferably, the first lotion is injected in an amount of 0.2 to 1 ml.
Preferably, the first lotion is injected in an amount of 0.2 to 0.3 ml.
In the operation process, the using amount of the first lotion is controlled according to the actual situation, if the using amount of the first lotion is too small, the aim of completely removing the water-containing liquid cannot be achieved, and if the using amount is too large, unnecessary waste is caused.
Preferably, the delivery pipe 1 comprises a main delivery pipe 11 and a branch pipe 12 communicated with the main delivery pipe 11, and a valve 2 is arranged at the junction of the main delivery pipe 11 and the branch pipe 12; the valve 2 is used for controlling the on-off of the main conveying pipe 11 and the on-off of the branch pipe 12; the first wash solution enters main pipe 11 and is then discharged from branch pipe 12.
When the first washing agent is supplied, main duct 11 is kept closed by valve 2 while branch duct 12 is opened, so that the first washing agent is transported along main duct 11 to branch duct 12; then, the branch pipe 12 is closed by the valve 2 while the main transport pipe 11 is kept open, and the anhydrous alcohol is further transported into the main transport pipe 11. Since the residual liquid in main duct 11 has been carried away by the first lotion, the anhydrous alcohol is not diluted.
Preferably, the valve 2 may be of the rotary, toggle or push type.
Preferably, the valve 2 can be a ball valve, a butterfly valve, a three-position three-way valve or a three-way regulating valve.
Preferably, a flexible container 3 is connected to the output end of the branch pipe 12.
The flexible container 3 serves to contain the first lotion and the residual liquid introduced from the branch pipe 12, and since the container is flexible, the volume thereof can be changed according to the amount of the first lotion and the residual liquid, and the storage of the first lotion and the residual liquid can be achieved in a sealed state (without being communicated with the atmosphere).
Preferably, the flexible containing chamber is a flexible bag.
Example 1
Before absolute ethyl alcohol enters the conveying pipe 1, perfluorodecalin is introduced into the conveying pipe 1; the delivered absolute ethyl alcohol is dissolved with phenol red.
Example 2
Before absolute ethyl alcohol enters the conveying pipe 1, 0.8ml of iodized oil is introduced into the conveying pipe 1.
Example 3
Before absolute ethyl alcohol enters the conveying pipe 1, 0.4ml of perfluorodecalin is introduced into the conveying pipe 1.
The methylene blue is dissolved in the conveyed anhydrous ethanol, and the conveyed anhydrous ethanol is diluted by water. Wherein the concentration of the absolute ethyl alcohol is 90 percent.
Example 4
Before the anhydrous methanol was introduced into the feed pipe 1, nitrogen gas was introduced into the feed pipe 1.
Example 5
Before the anhydrous methanol is introduced into the transfer pipe 1, 1ml of air is introduced into the transfer pipe 1.
Example 6
Before absolute ethyl alcohol enters the main conveying pipe 11, the main conveying pipe 11 is kept in a closed state through the valve 2, meanwhile, the branch pipe 12 is opened, perfluorodecalin is introduced into the main conveying pipe 11, and the perfluorodecalin flows through the main conveying pipe 11 and then enters the branch pipe 12 and is finally collected into the flexible bag. Then, the branch pipe 12 is closed by the valve 2 while the main transport pipe 11 is kept open, and the absolute ethanol is fed into the main transport pipe 11. Since the residual liquid in main transfer pipe 11 has been carried away by perfluorodecalin, the anhydrous alcohol is not diluted.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method of maintaining a reagent delivery concentration,
before the anhydrous alcohol enters the conveying pipe, introducing a first washing agent into the conveying pipe;
the first lotion is immiscible with the anhydrous alcohol.
2. The method of maintaining a reagent delivery concentration of claim 1, wherein the anhydrous alcohol is anhydrous ethanol or anhydrous methanol.
3. The method for maintaining a reagent delivery concentration of claim 1, wherein the first wash agent is a gas.
4. The method of claim 3, wherein the gas is one or both of air and an inert gas.
5. The method of maintaining a reagent delivery concentration of claim 1, wherein the first wash agent is one or both of perfluorodecalin, iodoform.
6. The method for maintaining a reagent delivery concentration according to any one of claims 1 to 5, wherein a coloring agent is dissolved in the anhydrous alcohol, and the coloring agent is one or two of phenol red and methylene blue.
7. The method of any of claims 1 to 5, further comprising a diluent in the anhydrous alcohol, the diluent being miscible with the anhydrous alcohol.
8. The method for maintaining reagent delivery concentration according to any one of claims 1 to 5, wherein the delivery pipe comprises a main delivery pipe and a branch pipe communicated with the main delivery pipe, and a valve is arranged at the junction of the main delivery pipe and the branch pipe;
the valve is used for controlling the on-off of the main conveying pipe and the on-off of the branch pipe;
and after entering the main conveying pipe, the first lotion is output from the branch pipe.
9. The method of maintaining reagent delivery concentration of claim 8, wherein a flexible container is connected to the output end of the branch tube.
10. The method of maintaining a reagent delivery concentration of claim 9, wherein the flexible container is a flexible bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110234186.7A CN113154260A (en) | 2021-03-03 | 2021-03-03 | Method for maintaining reagent delivery concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110234186.7A CN113154260A (en) | 2021-03-03 | 2021-03-03 | Method for maintaining reagent delivery concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113154260A true CN113154260A (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110234186.7A Pending CN113154260A (en) | 2021-03-03 | 2021-03-03 | Method for maintaining reagent delivery concentration |
Country Status (1)
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6428505B1 (en) * | 1999-11-19 | 2002-08-06 | Prismedical Corporation | In-line IV drug delivery pack with controllable dilution |
| CN1655839A (en) * | 2002-05-23 | 2005-08-17 | 科森工艺有限公司 | Gas supply system |
| CN101027225A (en) * | 2004-07-29 | 2007-08-29 | 阿斯特姆技术有限公司 | Replaceable reservoir |
| CN203777401U (en) * | 2013-09-05 | 2014-08-20 | 杨彦华 | Dual-head valve type three-way infusion device |
| CN107000912A (en) * | 2014-12-19 | 2017-08-01 | 宝洁公司 | Easily change the flexible container of size |
| CN207308513U (en) * | 2017-09-20 | 2018-05-04 | 哈尔滨商业大学 | A kind of Quick-air-drying test tube cleaning device |
| CN109276768A (en) * | 2017-07-20 | 2019-01-29 | B·布莱恩·阿维图姆股份公司 | The disposal container of dialyzate after use and extracorporeal blood purification system including the disposal container |
| CN110115607A (en) * | 2019-05-15 | 2019-08-13 | 黎悦 | A method of keeping reagent transportation concentration |
| CN111792222A (en) * | 2020-07-22 | 2020-10-20 | 上海旨安包装技术有限公司 | Lining for containing liquid substances and composite intermediate bulk container |
| CN211751481U (en) * | 2019-12-18 | 2020-10-27 | 黎悦 | Infusion apparatus capable of keeping reagent concentration |
-
2021
- 2021-03-03 CN CN202110234186.7A patent/CN113154260A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6428505B1 (en) * | 1999-11-19 | 2002-08-06 | Prismedical Corporation | In-line IV drug delivery pack with controllable dilution |
| US20020193733A1 (en) * | 1999-11-19 | 2002-12-19 | Taylor Michael A. | In-line iv drug delivery pack with controllable dilution |
| CN1655839A (en) * | 2002-05-23 | 2005-08-17 | 科森工艺有限公司 | Gas supply system |
| CN101027225A (en) * | 2004-07-29 | 2007-08-29 | 阿斯特姆技术有限公司 | Replaceable reservoir |
| CN203777401U (en) * | 2013-09-05 | 2014-08-20 | 杨彦华 | Dual-head valve type three-way infusion device |
| CN107000912A (en) * | 2014-12-19 | 2017-08-01 | 宝洁公司 | Easily change the flexible container of size |
| CN109276768A (en) * | 2017-07-20 | 2019-01-29 | B·布莱恩·阿维图姆股份公司 | The disposal container of dialyzate after use and extracorporeal blood purification system including the disposal container |
| CN207308513U (en) * | 2017-09-20 | 2018-05-04 | 哈尔滨商业大学 | A kind of Quick-air-drying test tube cleaning device |
| CN110115607A (en) * | 2019-05-15 | 2019-08-13 | 黎悦 | A method of keeping reagent transportation concentration |
| CN211751481U (en) * | 2019-12-18 | 2020-10-27 | 黎悦 | Infusion apparatus capable of keeping reagent concentration |
| CN111792222A (en) * | 2020-07-22 | 2020-10-20 | 上海旨安包装技术有限公司 | Lining for containing liquid substances and composite intermediate bulk container |
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| PB01 | Publication | ||
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Application publication date: 20210723 |