CN202860577U - Anti-suck-back device - Google Patents
Anti-suck-back device Download PDFInfo
- Publication number
- CN202860577U CN202860577U CN 201220523959 CN201220523959U CN202860577U CN 202860577 U CN202860577 U CN 202860577U CN 201220523959 CN201220523959 CN 201220523959 CN 201220523959 U CN201220523959 U CN 201220523959U CN 202860577 U CN202860577 U CN 202860577U
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- CN
- China
- Prior art keywords
- suck
- valves
- radius
- storage device
- pipe
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an anti-suck-back device, belonging to the technical field of fluid devices. The anti-suck-back device comprises a three-way tube, a storage device and two valves which are communicated, wherein the storage device is fixedly installed on the tube orifice A of the three-way tube, the two valves are fixedly installed in the three-way tube and close to a tube orifice B, and the radius of the valves is greater than the radius of the three-way tube; and the radius of the two valves is greater than the radius of the three-way tube with the purpose of allowing a fluid to flow towards one direction and preventing suck-back and backflow after installation. In the case of suck-back, the fluid is prevented from further flowing into other devices and then entering the storage device; in the way, accidents due to the suck-back caused by unstandardized man-made operations or accidental factors can be prevented.
Description
Technical field:
The utility model relates to a kind of suck-back device, belongs to the fluid means technical field.
Background technology:
A variety of causes is that research or teaching all be unable to do without laboratory and experimental provision in the natural science, often can runs into the suchlike operations such as distillation when testing, owing to the backflow of liquid suck-back may occur and bring unnecessary trouble to experimental implementation.At other field, such as requiring one-directional fluid flow in a lot of situations in the Chemical Engineering; Therefore, design a kind of suck-back device, can effectively address this problem.
The utility model content:
For the deficiencies in the prior art, the utility model provides a kind of suck-back device, avoids suck-back to cause the generation of accident and reduces unnecessary trouble.
The technical solution of the utility model is as follows:
A kind of suck-back device comprises three-way pipe, storage device and two valves of connection; Storage device is fixedly mounted on the mouth of pipe A of three-way pipe, and two valves are fixedly mounted in the three-way pipe and near mouth of pipe B place, the radius of described valve is greater than the radius of three-way pipe.The radius of two valves is to flow and prevent that suck-back from refluxing to a direction for rear permission fluid is installed greater than the purpose of the radius of three-way pipe.
Preferred according to the utility model, described three-way pipe is T shape pipe.
Preferred according to the utility model, described storage device is extension airbag or airtight leather hose.
The utility model is used for preventing the fluid suck-back, is fit to the multiple situation that requires one-directional fluid flow, especially is suitable for use on the vacuum distillation apparatus of laboratory, can effectively avoid suck-back to cause the generation of accident.
The utility model has following beneficial effect:
Suck-back device described in the utility model has adopted in three-way pipe and has allowed fluid to two valves that a direction flows, and can effectively prevent from having avoided unnecessary trouble because manual operation is lack of standardization or accidentalia causes suck-back to have an accident.
Description of drawings:
Fig. 1 is the utility model embodiment 1 suck-back device structure principle chart.
Fig. 2 is the cutaway view of the utility model embodiment 1 suck-back device T shape pipe B mouth.
Fig. 3 is that schematic diagram is used in the assembling of the utility model embodiment 1 suck-back device.
The specific embodiment:
Also by reference to the accompanying drawings the utility model is described further below by specific embodiment.
1:T shape pipe, 2: extension airbag, 3: valve, 4: suck-back device, 5: iron stand, 6: round-bottomed flask, 7: heater, 8: conical flask, 9: conduit.
Embodiment 1:
A kind of suck-back device 4 comprises T shape pipe 1, extension airbag 2 and two valves 3 of connection; Extension airbag 2 is fixedly mounted on the mouth of pipe A of T shape pipe 1, and two valves 3 are fixedly mounted in the T shape pipe 1 and near mouth of pipe B place, and the radius of two valves 3 is greater than the radius of T shape pipe 1, therefore can only allow fluid to flow and prevent the suck-back backflow to a direction.
Present embodiment as an example of distillation example to the utility model assembling instruction.
Suck-back device 4, iron stand 5, round-bottomed flask 6, heater 7, conical flask 8 and conduit 9 assembled successively finish, as shown in Figure 3.Which kind of reason generation suck-back phenomenon no matter during distillation, liquid in the conical flask 8 enters in the suck-back device 4 by conduit 9, owing to be provided with two valves 3 in the suck-back device 4, the liquid that suck-back enters enters in the extension airbag 2, stops liquid further to flow in the round-bottomed flask 6 and has prevented the generation of experiment accident.
Claims (3)
1. suck-back device comprises three-way pipe, storage device and two valves of connection; Storage device is fixedly mounted on the mouth of pipe A of three-way pipe, and two valves are fixedly mounted in the three-way pipe and near mouth of pipe B place, the radius of described valve is greater than the radius of three-way pipe.
2. a kind of suck-back device according to claim 1 is characterized in that: described three-way pipe is T shape pipe.
3. a kind of suck-back device according to claim 1, it is characterized in that: described storage device is extension airbag or airtight leather hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523959 CN202860577U (en) | 2012-10-11 | 2012-10-11 | Anti-suck-back device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523959 CN202860577U (en) | 2012-10-11 | 2012-10-11 | Anti-suck-back device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202860577U true CN202860577U (en) | 2013-04-10 |
Family
ID=48027336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220523959 Expired - Fee Related CN202860577U (en) | 2012-10-11 | 2012-10-11 | Anti-suck-back device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202860577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791193A (en) * | 2014-01-07 | 2014-05-14 | 宋子腾 | Multifunctional big three-way glass pipe |
-
2012
- 2012-10-11 CN CN 201220523959 patent/CN202860577U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791193A (en) * | 2014-01-07 | 2014-05-14 | 宋子腾 | Multifunctional big three-way glass pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131011 |