CN110877770A - Double-layer disposable liquid storage bag and constant-pressure conveying device thereof - Google Patents
Double-layer disposable liquid storage bag and constant-pressure conveying device thereof Download PDFInfo
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- CN110877770A CN110877770A CN201911124015.8A CN201911124015A CN110877770A CN 110877770 A CN110877770 A CN 110877770A CN 201911124015 A CN201911124015 A CN 201911124015A CN 110877770 A CN110877770 A CN 110877770A
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- bag body
- layer
- deformable bag
- inlet pipe
- air inlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/12—Conveying liquids or viscous products by pressure of another fluid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Engineering & Computer Science (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The invention discloses a double-layer disposable liquid storage bag and a constant-pressure conveying device, which comprise an external supporting shell, an outer-layer deformable bag body and an inner-layer deformable bag body, wherein the inner-layer deformable bag body is hermetically arranged in the outer-layer deformable bag body; the inner deformable bag body is connected with an inner liquid inlet pipe and an inner liquid outlet pipe, and the inner liquid inlet pipe and the inner liquid outlet pipe sequentially penetrate through the outer deformable bag body and the external support shell; the outer layer deformable bag body is connected with an outer layer air inlet pipe, and the outer layer air inlet pipe penetrates through the external support shell. Stable gas enters into the outer deformable bag body through the outer intake pipe, thereby gas pressure promotes the inner deformable bag body and takes place deformation and extrude the internal liquid of inner deformable bag and export through the inner drain pipe.
Description
Technical Field
The invention relates to liquid conveying in the field of biological application, in particular to a liquid storage bag and a constant-pressure conveying device using the same.
Background
In biological applications, for example: in the processes of filtering, nanofiltration, chromatography and culture medium addition, constant-pressure liquid transportation is needed; at present, pumping or plunger pushing is adopted, and the method has the following defects: the sterilization purpose cannot be achieved, so that the liquid directly contacts the pump cavity or the plunger; the pressure cannot be accurately controlled and there is a gas output when there is no liquid in the deformable medicament container.
Meanwhile, publication No.: CN 110191732A, invention name: a medicament delivery device for delivering a liquid medicament, comprising a rigid housing of a deformable medicament container arranged to contain the liquid medicament; a pressurized gas cartridge connected to the rigid housing via a gas valve; wherein the gas valve is releasable to allow gas to flow into the rigid housing, thereby causing an increase in gas pressure in the rigid housing, thereby compressing the deformable medicament container to displace the liquid medicament, has the disadvantage of: the sealing requirement is high; regulation of pressure, and constant pressure delivery cannot be achieved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a double-layer disposable liquid storage bag and a constant-pressure infusion device, which can realize complete isolation and avoid air sterilization and filtration and sample pollution; the pressure is accurately controlled to realize constant-pressure output.
In order to achieve the purpose, the invention adopts the technical scheme that:
the double-layer disposable liquid storage bag comprises an external support shell, wherein an inner deformable bag body is arranged in the external support shell, an outer deformable bag body is arranged between the external support shell and the inner deformable bag body, and the inner deformable bag body is hermetically arranged in the outer deformable bag body; the inner deformable bag body is connected with an inner liquid inlet pipe and an inner liquid outlet pipe, and the inner liquid inlet pipe and the inner liquid outlet pipe sequentially penetrate through the outer deformable bag body and the external support shell; the outer layer deformable bag body is connected with an outer layer air inlet pipe, and the outer layer air inlet pipe penetrates through the external support shell.
Further, the inner layer liquid inlet pipe and the inner layer liquid outlet pipe are arranged at the end part of the inner layer deformable bag body; the outer layer air inlet pipe is arranged at the same side end part or the other end part of the inner layer liquid inlet pipe and the end part of the inner layer liquid outlet pipe which are arranged on the outer layer deformable bag body and are opposite to the inner layer deformable bag body.
Further, the inner liquid inlet pipe and the inner liquid outlet pipe are arranged on the same side or different sides of the upper surface and/or the lower surface of the inner deformable bag body; the outer layer air inlet pipe is arranged on the upper surface or the lower surface of the outer layer deformable bag body.
Furthermore, the external support shell is divided into an upper shell and a lower shell, and the upper shell and the lower shell can be separated and mounted.
The utility model provides a constant pressure conveyor, includes double-deck disposable liquid storage bag, and double-deck disposable liquid storage bag's outer admission pipe passes through pressure control module and connects air inlet unit, is provided with the control valve on the pipeline that the inlayer drain pipe is connected, the control valve can be pinch valve or other types present control valve in the field.
Furthermore, the pressure control module comprises an automatic regulating valve, a pressure sensor and an electromagnetic valve switch; the automatic regulating valve, the pressure sensor and the electromagnetic valve switch are connected in series on a connecting pipeline of an outer layer air inlet pipe of the double-layer disposable liquid storage bag and the air inlet device.
Furthermore, the pressure control module also comprises a silencer, and the silencer is connected to the pipeline through an electromagnetic valve.
Furthermore, a manual pressure reducing valve and a pressure gauge are arranged on a pipeline between the air inlet device and the pressure control module.
Further, the air inlet device comprises an air compressor or a compressed air bottle.
The invention has the beneficial effects that:
the double-layer bag design is adopted, so that the air tightness and the sanitation requirements can be ensured, the air is prevented from directly contacting liquid, and the air is not required to be sterilized; simultaneously, the direct replacement outside support casing in the double-deck bag can, it is convenient to dismantle and install during the change, and need not to guarantee the gas tightness of outside support casing, only need guarantee holistic can withstand atmospheric pressure can.
The pressure control module can be used for accurately adjusting and controlling the output liquid under different pressures.
Drawings
FIG. 1 is a front view of the embodiment 1 of the double-layered disposable liquid storage bag
Fig. 2 is the external supporting shell of the double-layer disposable liquid storage bag.
Fig. 3 is a plan view of the double-layered disposable reservoir bag 1.
Fig. 4 is a front view of the double-layered disposable reservoir bag of embodiment 2.
Fig. 5 is a side view of the present double-layered disposable reservoir bag in example 2.
FIG. 6 is a schematic structural diagram of the constant pressure conveying apparatus of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings
Example 1
Referring to fig. 1-3, the double-layer disposable liquid storage bag comprises an external support shell 1, wherein the external support shell 1 is made of stainless steel, the whole pressure resistance is more than or equal to 3Bar, an inner-layer deformable bag body 2 is placed in the external support shell 1, an outer-layer deformable bag body 3 is arranged between the inner-layer deformable bag body 2 and the external support shell 1, the inner-layer deformable bag body 2 is hermetically placed in the outer-layer deformable bag body 3, one end of the inner-layer deformable bag body 2 is connected with an inner-layer liquid inlet pipe 4 and an inner-layer liquid outlet pipe 5, and the inner-layer liquid inlet pipe 4 and the inner-layer liquid outlet pipe 5 sequentially penetrate through the outer-layer; the other end of the outer layer deformable bag body 3 opposite to the end of the inner layer deformable bag body is connected with an outer layer air inlet pipe 6, and the outer layer air inlet pipe 6 penetrates through the external support shell 1.
The outside casing that supports 1 divide into upper casing and lower floor's casing, but upper casing and lower floor's casing shell split and installation, when needs replacement inlayer flexible bag body 2 and outer flexible bag body 3, direct split upper casing and lower floor's casing take out can, consequently, only need guarantee the leakproofness of outer flexible bag body 3 can, need not to guarantee the leakproofness of outside support casing 1, need not to replace outside support casing 1.
Example 2:
referring to fig. 4-5, the double-layer disposable liquid storage bag comprises an external support shell 1, wherein the external support shell 1 is made of stainless steel, the whole pressure resistance is more than or equal to 3Bar, an inner-layer deformable bag body 2 is placed in the external support shell 1, an outer-layer deformable bag body 3 is arranged between the inner-layer deformable bag body 2 and the external support shell 1, the inner-layer deformable bag body 2 is hermetically placed in the outer-layer deformable bag body 3, one end of the inner-layer deformable bag body 2 is connected with an inner-layer liquid inlet pipe 4 and an inner-layer liquid outlet pipe 5, and the inner-layer liquid inlet pipe 4 and the inner-layer liquid outlet pipe 5 sequentially penetrate through the outer-layer; the inner liquid inlet pipe 4 and the inner liquid outlet pipe 5 are arranged on the upper surface of the inner deformable bag body 2; the outer layer air inlet pipe 6 is arranged on the upper surface of the outer layer deformable bag body 3; the inner liquid inlet pipe 4, the inner liquid outlet pipe 5 and the air inlet pipe 6 are arranged in a triangular mode.
Referring to fig. 6, the constant pressure conveying device comprises a double-layer disposable liquid storage bag, an outer layer air inlet pipe 6 of the double-layer disposable liquid storage bag is connected with an air inlet device 7 through a pressure control module, and a pipeline connected with an inner layer liquid outlet pipe 5 is provided with a pinch valve 8. The pressure control module 7 comprises an automatic regulating valve 71, a pressure sensor 72 and a solenoid valve switch 73; the automatic regulating valve 71, the pressure sensor 72 and the electromagnetic valve 73 are switched on and off once and are connected in series on a connecting pipeline between the outer layer air inlet pipe 6 of the double-layer disposable liquid storage bag and the air inlet device. The pressure control module also includes a muffler 74, and the muffler 74 is connected to the pipeline through a solenoid valve 73. And a manual pressure reducing valve 9 and a pressure gauge 10 are arranged on a pipeline between the air inlet device and the pressure control module.
The air inlet device comprises an air compressor or a compressed air bottle.
When the device is used, an equipment air source is an air compressor or a compressed air bottle, is displayed by a manual pressure reducing valve 9 and a pressure gauge 10, and enters a pressure control module after being regulated to a specific pressure; the pressure control module comprises automatic pressure regulating valve 71, pressure sensor 72, electromagnetic switch valve 73, muffler 74, and inside closed loop control, stable pressure of output gives double-deck disposable stock solution bag, and stable gas enters into outer layer deformable bag body 3 through outer layer intake pipe 6, and thereby gas pressure promotes the deformation of inner layer deformable bag body 2 and takes place the liquid of extruding inner layer deformable bag body 2 and export through inner layer drain pipe 5.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The double-layer disposable liquid storage bag is characterized by comprising an external support shell, wherein an inner deformable bag body is placed in the external support shell, an outer deformable bag body is arranged between the external support shell and the inner deformable bag body, and the inner deformable bag body is hermetically arranged in the outer deformable bag body; the inner deformable bag body is connected with an inner liquid inlet pipe and an inner liquid outlet pipe, and the inner liquid inlet pipe and the inner liquid outlet pipe sequentially penetrate through the outer deformable bag body and the external support shell; the outer layer deformable bag body is connected with an outer layer air inlet pipe, and the outer layer air inlet pipe penetrates through the external support shell.
2. The double-layered disposable liquid storage bag according to claim 1 wherein said inner liquid inlet pipe and said inner liquid outlet pipe are disposed at the ends of the inner deformable bag body; the outer layer air inlet pipe is arranged on the outer layer deformable bag body and is provided with the end part or the other end part of the inner layer liquid inlet pipe and the end part of the inner layer liquid outlet pipe, which are arranged at the same side of the inner layer deformable bag body.
3. The dual-layer disposable liquid storage bag according to claim 1 wherein said inner liquid inlet pipe and said inner liquid outlet pipe are disposed on the same side or different sides of the upper surface and/or the lower surface of the deformable bag body.
4. The dual-layer disposable liquid storage bag according to claim 1 wherein said outer air inlet tube is provided on the upper or lower surface of the deformable bag body.
5. A dual-layered disposable reservoir bag according to any of claims 1-4 wherein said outer support shell is divided into an upper shell and a lower shell, said upper and lower shells being detachable and attachable.
6. A constant pressure delivery device, comprising a double-layer disposable liquid storage bag as claimed in any one of claims 1 to 5, wherein an outer air inlet pipe of the double-layer disposable liquid storage bag is connected with an air inlet device through a pressure control module, and a control valve is arranged on a pipeline connected with an inner liquid outlet pipe.
7. The constant pressure feeding apparatus according to claim 6, wherein said pressure control module comprises an automatic regulating valve, a pressure sensor and a solenoid valve switch; the automatic regulating valve, the pressure sensor and the electromagnetic valve switch are sequentially connected in series on a connecting pipeline of an outer layer air inlet pipe of the double-layer disposable liquid storage bag and the air inlet device along the air inlet direction.
8. The constant pressure feeding apparatus as claimed in claim 6, wherein said pressure control module further comprises a muffler connected to the pipe by a solenoid valve.
9. The constant pressure delivery apparatus according to claim 6, wherein a manual pressure reducing valve and a pressure gauge are provided in a pipe between the air inlet means and the pressure control module.
10. The constant pressure delivery apparatus according to claim 6, wherein the air intake means comprises an air compressor or a compressed gas cylinder; the control valve is a pinch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911124015.8A CN110877770A (en) | 2019-11-15 | 2019-11-15 | Double-layer disposable liquid storage bag and constant-pressure conveying device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911124015.8A CN110877770A (en) | 2019-11-15 | 2019-11-15 | Double-layer disposable liquid storage bag and constant-pressure conveying device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110877770A true CN110877770A (en) | 2020-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911124015.8A Pending CN110877770A (en) | 2019-11-15 | 2019-11-15 | Double-layer disposable liquid storage bag and constant-pressure conveying device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110877770A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113426314A (en) * | 2021-06-21 | 2021-09-24 | 梁悦林 | Formula conveying line formula structure is driped irrigation to cosmetic oil looks raw materials |
| CN114216058A (en) * | 2021-12-23 | 2022-03-22 | 贵州微化科技有限公司 | Liquid material conveying device |
| ES2924440A1 (en) * | 2021-03-18 | 2022-10-06 | Liquidpack S L | CONTAINER BAG FOR FLUID PRODUCTS (Machine-translation by Google Translate, not legally binding) |
-
2019
- 2019-11-15 CN CN201911124015.8A patent/CN110877770A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2924440A1 (en) * | 2021-03-18 | 2022-10-06 | Liquidpack S L | CONTAINER BAG FOR FLUID PRODUCTS (Machine-translation by Google Translate, not legally binding) |
| CN113426314A (en) * | 2021-06-21 | 2021-09-24 | 梁悦林 | Formula conveying line formula structure is driped irrigation to cosmetic oil looks raw materials |
| CN114216058A (en) * | 2021-12-23 | 2022-03-22 | 贵州微化科技有限公司 | Liquid material conveying device |
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