CN220300873U - Backflow preventing device for liquid inlet pipe - Google Patents
Backflow preventing device for liquid inlet pipe Download PDFInfo
- Publication number
- CN220300873U CN220300873U CN202321502134.4U CN202321502134U CN220300873U CN 220300873 U CN220300873 U CN 220300873U CN 202321502134 U CN202321502134 U CN 202321502134U CN 220300873 U CN220300873 U CN 220300873U
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- pipe
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- inlet pipe
- liquid inlet
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- 239000007788 liquid Substances 0.000 title claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000005484 gravity Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 12
- 239000008151 electrolyte solution Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 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
- 239000000126 substance Substances 0.000 description 1
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to the technical field of liquid inlet devices in fixed containers, and provides a liquid inlet pipe backflow preventing device which comprises a liquid inlet pipe, a liquid outlet pipe and an air cavity; a sealing floater is arranged at the lower side of the inner part of the air cavity, a hollow channel is arranged in the sealing floater, and liquid and gas can circulate; the upper side of the interior is provided with an air inlet, the side wall of the air cavity is communicated with an air inlet pipe, and the air inlet pipe is communicated with the air inlet. The utility model solves the problem of liquid backflow in the liquid inlet pipe, and has the advantages of simple operation, convenient use and easy maintenance.
Description
Technical Field
The utility model relates to the technical field of liquid inlet devices in fixed containers, in particular to a liquid inlet pipe backflow preventing device.
Background
In the development of the electrolytic test, referring to fig. 1, it is necessary to convey the new electrolytic solution into the electrolytic tank 10 by a pump, feed the solution from the bottom of the electrolytic tank, and flow out the solution from the overflow hole 9 at the upper part, thereby ensuring the stable supply of the new electrolytic solution. While the thermometer 8 and the heating pipe 7 are required to control the cell temperature. When the pump fails, the liquid inlet pipe flows back to the new electrolytic solution tank under the action of siphoning, so that on one hand, chemical components of the new liquid can be influenced, and on the other hand, the temperature probe of the electrolytic solution tank can leak out of the liquid level, so that the heating pipe is continuously heated, and great potential safety hazards exist.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides a backflow preventing device for a liquid inlet pipe, solves the problem of new liquid pollution caused by backflow of solution in the electrolytic process, and eliminates potential safety hazards in the test process.
The technical scheme of the utility model is as follows:
the backflow preventing device for the liquid inlet pipe comprises the liquid inlet pipe, the liquid outlet pipe and an air cavity;
the liquid inlet pipe comprises a first vertical pipe, a transverse pipe and a second vertical pipe, one end of the transverse pipe is communicated with the top end of the first vertical pipe, the other end of the transverse pipe is communicated with the side wall of the second vertical pipe, and one end of the top side of the second vertical pipe is connected with the air cavity;
a sealing floater is arranged at the lower side of the inner part of the air cavity, and a hollow channel is arranged in the sealing floater; an air inlet is formed in the upper side of the inside of the air cavity, an air inlet pipe is communicated with the side wall of the air cavity, and the air inlet pipe is communicated with the air inlet;
the liquid outlet pipe is transversely arranged in the electrolytic tank, and the bottom end of the second vertical pipe is communicated with the liquid outlet pipe.
Further, the upward inclination angle of the transverse tube is 5-10 degrees.
Further, the liquid outlet pipes are provided with round liquid distribution holes at intervals.
Furthermore, the sum of the areas of the circular liquid distribution holes is smaller than the cross section of the liquid outlet pipe section.
Further, the sealing floater has a specific gravity of less than 0.8 and can float in liquid.
Furthermore, the air inlet is conical, and the outlet end is provided with a flange.
Further, the outlet of the air inlet pipe is vertically downward.
The beneficial effects of the utility model are as follows: the utility model realizes the purpose of preventing the solution from flowing backwards through the arrangement of the air cavity component on the liquid inlet pipe, and has the advantages of simple operation, convenient use and easy maintenance.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model in a specific embodiment;
FIG. 2 is a schematic illustration of the flow of liquid within the air cavity;
FIG. 3 is a schematic illustration of the flow of gas within the air cavity;
in the figure, 1-liquid inlet pipe, 1-first vertical pipe, 1-2-horizontal pipe, 1-3-second vertical pipe, 2-air cavity, 3-air inlet, 4-air inlet pipe, 5-sealing float, 6-liquid outlet pipe, 7-heating pipe, 8-temperature probe, 9-overflow port, 10-electrolytic tank and 11-liquid distribution hole.
Detailed Description
The utility model will be further described with reference to the drawings and detailed description.
As shown in fig. 1-3, in this embodiment of the present utility model, a backflow preventing device for a liquid inlet pipe includes a liquid inlet pipe 1, a liquid outlet pipe 6 and an air cavity 2;
the liquid inlet pipe 1 comprises a first vertical pipe 1-1, a transverse pipe 1-2 and a second vertical pipe 1-3, one end of the transverse pipe 1-2 is communicated with the top end of the first vertical pipe 1-1, the other end of the transverse pipe is communicated with the side wall of the second vertical pipe 1-3, and one end of the top side of the second vertical pipe 1-3 is connected with an air cavity 2;
the lower side of the inside of the air cavity 2 is provided with a sealing floater 5 which can float up and down, the inside of the sealing floater 5 is provided with a hollow channel, and liquid and gas can circulate; the upper side of the interior is provided with an air inlet 3, preferably, the air inlet 3 is conical, and the outlet end is provided with a flange; the side wall of the air cavity 2 is communicated with an air inlet pipe 4, and the air inlet pipe 4 is communicated with the air inlet 3; preferably, the outlet of the air inlet pipe 4 is vertically downward.
The liquid outlet pipe 6 is transversely arranged in the electrolytic tank 10, and the lower ends of the second vertical pipes 1-3 are communicated with the liquid outlet pipe 6.
The specific operation process of the utility model comprises the following steps: after the liquid inlet pump is started, the solution firstly enters the liquid inlet pipe, then enters the air cavity, the sealing floater moves upwards under the action of the buoyancy force of the solution until the top end of the sealing floater contacts with the flange of the air inlet for sealing, and finally the solution flows out from the liquid distribution hole of the liquid outlet pipe. When the pump fails and stops running, the sealing floater of the air cavity is positioned at the highest position, the solution in the air cavity moves downwards under the action of gravity, the sealing floater also descends along with the solution and is separated from the air inlet flange, and air enters the liquid inlet pipe along the gap in the air cavity and the hollow channel of the sealing floater to prevent the occurrence of siphoning, so that the aim of preventing the solution from flowing backwards is fulfilled.
In one embodiment of the utility model, the upward inclination angle is 5-10 degrees when the transverse pipe 1-2 is connected with the second vertical pipe 1-3, so that the solution can flow back quickly.
In one embodiment of the utility model, the liquid outlet pipe 6 is provided with round liquid distribution holes 11 at intervals, the sum of the areas of the round liquid distribution holes 11 is smaller than the cross section of the liquid outlet pipe section 6, so that the pressure in the pipe can be increased, and meanwhile, the solution is sprayed out from the liquid outlet holes, so that the mixing effect of the liquid in the tank is increased.
In one embodiment of the utility model, the sealing float 5 has a specific gravity of less than 0.8 and is floatable in a liquid.
It should be apparent that the above-described embodiments are merely some, but not all, embodiments of the present utility model. The above examples are only for explaining the present utility model and do not limit the scope of the present utility model. Based on the above embodiments, all other embodiments, i.e. all modifications, equivalents and improvements made within the spirit and principles of the present application, which are obtained by persons skilled in the art without making creative efforts are within the scope of the present utility model claimed.
Claims (7)
1. The backflow preventing device for the liquid inlet pipe is characterized by comprising the liquid inlet pipe (1), a liquid outlet pipe (6) and an air cavity (2);
the liquid inlet pipe (1) comprises a first vertical pipe (1-1), a transverse pipe (1-2) and a second vertical pipe (1-3), one end of the transverse pipe (1-2) is communicated with the top end of the first vertical pipe (1-1), the other end of the transverse pipe is communicated with the side wall of the second vertical pipe (1-3), and one end of the top side of the second vertical pipe (1-3) is connected with the air cavity (2);
a sealing floater (5) is arranged at the lower side of the inside of the air cavity (2), and a hollow channel is arranged in the sealing floater (5); an air inlet (3) is formed in the upper side of the inside of the air cavity (2), an air inlet pipe (4) is communicated with the side wall of the air cavity (2), and the air inlet pipe (4) is communicated with the air inlet (3);
the liquid outlet pipe (6) is transversely arranged in the electrolytic tank (10), and the bottom end of the second vertical pipe (1-3) is communicated with the liquid outlet pipe (6).
2. A backflow prevention device for a liquid inlet pipe according to claim 1, wherein the horizontal pipe (1-2) is inclined upward by an angle of 5 ° -10 °.
3. The backflow prevention device for the liquid inlet pipe according to claim 1, wherein the liquid outlet pipe (6) is provided with round liquid distribution holes (11) at intervals.
4. A backflow prevention device for a liquid inlet pipe according to claim 3, wherein the sum of the areas of the circular liquid distribution holes (11) is smaller than the cross section of the liquid outlet pipe (6).
5. A backflow prevention device for a liquid inlet pipe according to claim 1, wherein the sealing float (5) has a specific gravity of less than 0.8.
6. The backflow prevention device for the liquid inlet pipe according to claim 1, wherein the air inlet (3) is conical, and the outlet end is provided with a flange.
7. A backflow prevention device for a liquid inlet pipe according to claim 1, wherein the outlet of the air inlet pipe (4) is vertically downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321502134.4U CN220300873U (en) | 2023-06-13 | 2023-06-13 | Backflow preventing device for liquid inlet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321502134.4U CN220300873U (en) | 2023-06-13 | 2023-06-13 | Backflow preventing device for liquid inlet pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220300873U true CN220300873U (en) | 2024-01-05 |
Family
ID=89350868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321502134.4U Active CN220300873U (en) | 2023-06-13 | 2023-06-13 | Backflow preventing device for liquid inlet pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220300873U (en) |
-
2023
- 2023-06-13 CN CN202321502134.4U patent/CN220300873U/en active Active
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