CN214916205U - Automatic prevent suck-back experiment tail gas absorbing device - Google Patents
Automatic prevent suck-back experiment tail gas absorbing device Download PDFInfo
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- CN214916205U CN214916205U CN202120699015.7U CN202120699015U CN214916205U CN 214916205 U CN214916205 U CN 214916205U CN 202120699015 U CN202120699015 U CN 202120699015U CN 214916205 U CN214916205 U CN 214916205U
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Abstract
The utility model discloses an automatic back suction prevention experiment tail gas absorption device, which comprises an absorption bottle and a back suction prevention chamber, wherein an absorption pipe is arranged in the absorption bottle; the anti-suck-back chamber comprises a first cavity, a first pipe body connected with the upper end of the first cavity and a second pipe body connected with the lower end of the first cavity, the second pipe body extends into the absorption bottle and is connected with the upper end of the absorption pipe, and a first hollow ball is arranged in the first cavity; one side of the absorption tube is connected with a pressure balance branch tube, the pressure balance branch tube comprises a third tube body connected with the absorption tube, a second cavity connected with the third tube body and a fourth tube body connected with the second cavity, and a second hollow ball is arranged in the second cavity. The device has solved the emergence of automatic prevention absorption liquid refluence phenomenon, can not only let the experiment go on smoothly, but also prevents the emergence of incident.
Description
Technical Field
The utility model relates to an experiment glass equipment technical field especially relates to an automatic prevent suck-back experiment tail gas absorbing device.
Background
The experimental glass equipment mainly refers to glass instruments used for scientific research and teaching, and comprises common conventional glass instruments, such as a separating funnel, a beaker, a gas collecting bottle, a drying tube, a suction filter bottle and an evaporating dish, and also comprises glass instruments used for chemical experiments, such as a constant, semi-micro and micro organic preparation instrument and the like of a complete set of synthetic preparation experiments.
The tail gas that produces in the experiment need be handled often in chemistry scientific research and chemistry experiment, because temperature, the pressure change in the reaction process often lead to the atmospheric pressure in reaction system space unstable and produce the absorption liquid phenomenon of suckbacking, because often coming urgent processing when the experiment is going on, tail gas absorption liquid flows back into in the reaction system device. At present, organic chemistry tail gas is absorbed through simple absorbing device basically, and these simple absorbing device have some tail gas to escape, and the escape of some harmful tail gas causes serious harm to student and laboratory teacher's health, for this reason this utility model technical study a can prevent the closed experimental apparatus of tail gas absorption liquid suck-back automatically.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that absorption liquid is sucked backwards often when tail gas is absorbed in chemical experiments, and providing an automatic back-suction prevention experiment tail gas absorption device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an experimental tail gas absorption device capable of automatically preventing back suction comprises an absorption bottle and a back suction prevention chamber, wherein a liquid feeding funnel is arranged above the absorption bottle, a waste liquid discharge pipe is arranged at the lower side of the absorption bottle, and an absorption pipe is arranged in the absorption bottle;
the anti-suck-back chamber comprises a first cavity, a first pipe body connected with the upper end of the first cavity and a second pipe body connected with the lower end of the first cavity, the second pipe body extends into the absorption bottle and is connected with the upper end of the absorption pipe, and a first hollow ball is arranged in the first cavity;
one side of the absorption tube is connected with a pressure balance branch tube, the pressure balance branch tube comprises a third tube body connected with the absorption tube, a second cavity connected with the third tube body and a fourth tube body connected with the second cavity, and a second hollow ball is arranged in the second cavity.
Preferably, the lower end of the absorption tube is tapered.
Preferably, the end of the fourth tube is hook-shaped.
Preferably, the first cavity and the second cavity are circular.
Preferably, the first cavity is provided with a first sealing ring at one end close to the first pipe body, and a baffle is arranged at one end close to the second pipe body.
Preferably, the second cavity is provided with a second sealing ring at one end close to the fourth tube.
Preferably, the grid is a silica gel strip.
The beneficial effects of the utility model
The utility model provides an automatic prevent suck-back experiment tail gas absorbing device, compared with the prior art, the device sets up the first clean shot in preventing suck-back room, when the change because reaction temperature, pressure lead to absorbing solution to take place the refluence phenomenon, the buoyancy that absorbing solution produced will prevent suck-back room in the first clean shot hold up contact top first sealing washer to reach and seal the pass and prevent absorbing solution to flow into the reaction unit; simultaneously, the absorption tube and prevent suck-back absorption liquid in the suck-back room can flow into in the pressure balance bronchus, and the second clean shot in the pressure balance bronchus is owing to receive the influence of absorption liquid buoyancy, and the clean shot floats gradually, has opened the orificial passageway of closed, and finally during absorption liquid got back to the absorption bottle again, reached automatic prevention absorption liquid refluence phenomenon and taken place, can not only let the experiment go on smoothly, but also prevent the emergence of incident.
Drawings
FIG. 1 is a schematic structural view of an experimental tail gas absorption device for automatically preventing back suction of the present invention;
FIG. 2 is a top view of the first chamber of the experimental tail gas absorption device for automatically preventing back suction of the present invention;
fig. 3 is a bottom view of the first cavity of the experimental tail gas absorption device for automatically preventing back suction of the present invention;
FIG. 4 is a schematic structural view of a suck-back prevention chamber of the experimental tail gas absorption device for automatically preventing suck-back of the tail gas;
FIG. 5 is a schematic structural view of a pressure balance branch pipe of an experimental tail gas absorption device for automatically preventing back suction according to the present invention;
in the figure, 1, an absorption bottle, 2, an anti-back suction chamber, 2-1, a first pipe body, 2-2, a first cavity, 2-3, a second pipe body, 3, a first hollow ball, 4, a grid, 5, a first sealing ring, 6, an absorption tube, 7, absorption liquid, 8, a pressure balance branch pipe, 8-1, a third pipe body, 8-2, a second cavity, 8-3, a fourth pipe body, 9, a second hollow ball, 10, a second sealing ring, 11, a waste liquid discharge pipe, 12, a liquid feeding funnel, 13 and a rubber plug.
Detailed Description
The utility model provides an automatic prevent suck-back experiment tail gas absorbing device, as shown in fig. 1-5, include absorption bottle 1 and prevent suck- back room 2, 1 top of absorption bottle be equipped with liquid feeding funnel 12, be equipped with switch valve on the liquid feeding funnel 12 for the joining of absorption liquid, 1 downside of absorption bottle is equipped with waste liquid fluid-discharge tube 11, is equipped with switch valve on the waste liquid fluid-discharge tube 11 for the discharge of absorption liquid, is equipped with absorption tube 6 in the absorption bottle 1, and the lower extreme of absorption tube 6 is the toper, the lower extreme of absorption tube 6 need extend to fully contact with absorption liquid 7 to accomplish the absorption of experiment tail gas.
The anti-suck-back chamber 2 comprises a first cavity 2-2, a first pipe body 2-1 connected with the upper end of the first cavity 2-2 and a second pipe body 2-3 connected with the lower end of the first cavity 2-2, wherein the first pipe body 2-1 is used for connecting a reaction device, the second pipe body 2-3 extends into the absorption bottle 1 and is connected with the upper end of an absorption tube 6, and a first hollow ball 3 is arranged in the first cavity 2-2; the first cavity 3 is provided with a first sealing ring 5 at one end close to the first tube body 2-1, a block 4 is arranged at one end close to the second tube body 2-3, the first hollow ball 3 can be in close contact with the first sealing ring 5 and is sealed without air leakage, the block 4 is a silica gel strip and is used for supporting the first hollow ball 3 to prevent the first hollow ball from dropping, the silica gel strip can support the first hollow ball 3 in size, two sides of the silica gel strip are not sealed, and air can pass by the silica gel strip.
One side of the absorption pipe 6 is connected with a pressure balance branch pipe 8, the pressure balance branch pipe 8 comprises a third pipe body 8-1 connected with the absorption pipe 6, a second cavity body 8-2 connected with the third pipe body 8-1 and a fourth pipe body 8-3 connected with the second cavity body 8-2 from top to bottom, the tail end of the fourth pipe body 8-3 is hook-shaped, and a second hollow ball 9 is arranged in the second cavity body 8-2. And a second sealing ring 10 is arranged at one end of the second cavity 8-2, which is close to the fourth pipe body 8-3, and the second hollow ball 9 can be tightly contacted with the second sealing ring 10 to seal and prevent air leakage.
The first hollow sphere 3 and the second hollow sphere 9 according to the present embodiment have a density lower than that of the absorbing liquid 7.
The first cavity 3 and the second cavity 9 in this embodiment are circular.
The absorption bottle 1 and the suck-back prevention chamber 2 of the utility model are made of glass.
The joint of the second pipeline 2-3 and the absorption bottle 1 and the joint of the absorption tube 6 are sealed by a rubber plug 13, the joint of the third pipeline 8-1 and the second cavity 8-2 is sealed by a rubber plug 13, and the joint of the liquid adding funnel 12 and the absorption bottle 1 is sealed by a rubber plug 13.
When the device is used, the absorption liquid 7 is added into the absorption bottle 1 through the liquid adding funnel 12, the liquid level of the absorption liquid 7 is higher than the bottom end of the absorption tube 6, and then the switch valve of the liquid adding funnel 12 is closed to seal the system;
experimental tail gas NO2Production of NO from externally connected experimental devices2The gas reaches the absorption liquid through the suck-back prevention chamber 2 and the absorption pipe 6, and is fully absorbed by the absorption liquid.
The temperature is reduced in an external experiment, the air pressure in the reaction system is reduced, the absorption tube 6 is internally sucked reversely, the absorption liquid enters the reverse suction prevention chamber 2 along the absorption tube, the first hollow ball 3 in the reverse suction prevention chamber 2 is supported by the absorption liquid 7 to contact the first sealing ring 5, the first pipeline 2-1 is closed, and the absorption liquid cannot enter the reaction system. The absorption tube 6 and the absorption liquid sucked in the suck-back prevention chamber 2 flow into the pressure balance branch tube 8, the second hollow ball 9 in the pressure balance branch tube 8 floats gradually due to the influence of buoyancy of the absorption liquid, a channel for sealing the fourth pipeline 8-3 is opened, the absorption liquid returns to the bottom of the absorption bottle 1 again, then the experiment is stopped, the device is disconnected from an external experiment device, and the absorption liquid is discharged from the waste liquid discharge tube 11 provided with the switch valve.
The invention and the experimental device can be used for gas absorption of chemical experiments, preparation of saturated liquid and the like. The protection scope of the present invention is not limited thereto, and any technical personnel, scientific research personnel and experimenters familiar with the technical field are in the utility model discloses the application scope that the experimental apparatus reveals, according to the utility model discloses technical scheme and practical design replace or change, all should be covered within the protection scope of the present invention.
Claims (7)
1. The experimental tail gas absorption device capable of automatically preventing back suction is characterized by comprising an absorption bottle (1) and a back suction prevention chamber (2), wherein a liquid feeding funnel (12) is arranged above the absorption bottle (1), a waste liquid discharge pipe (11) is arranged on the lower side of the absorption bottle, and an absorption pipe (6) is arranged in the absorption bottle (1);
the anti-suck-back chamber (2) comprises a first cavity (2-2), a first pipe body (2-1) connected with the upper end of the first cavity (2-2) and a second pipe body (2-3) connected with the lower end of the first cavity (2-2), the second pipe body (2-3) extends into the absorption bottle (1) and is connected with the upper end of the absorption tube (6), and a first hollow ball (3) is arranged in the first cavity (2-2);
one side of the absorption pipe (6) is connected with a pressure balance branch pipe (8), the pressure balance branch pipe (8) comprises a third pipe body (8-1) connected with the absorption pipe (6), a second cavity (8-2) connected with the third pipe body (8-1) and a fourth pipe body (8-3) connected with the second cavity (8-2), and a second hollow ball (9) is arranged in the second cavity (8-2).
2. The device for automatically preventing the back suction of the experimental tail gas as claimed in claim 1, wherein the lower end of the absorption pipe (6) is conical.
3. The device for automatically preventing the tail gas from being sucked back for the experiment according to claim 1, wherein the end of the fourth pipe body (8-3) is hook-shaped.
4. The device for automatically preventing the back suction of the experimental tail gas as claimed in claim 1, wherein the first cavity (2-2) and the second cavity (8-2) are circular.
5. The device for automatically preventing the tail gas from being sucked back for the experiment according to claim 1, wherein the first cavity (2-2) is provided with a first sealing ring (5) at one end close to the first pipe body (2-1), and a stop (4) at one end close to the second pipe body (2-3).
6. The device for automatically preventing the tail gas from being sucked back for the experiment according to claim 5, wherein the block (4) is a silica gel strip.
7. The device for automatically preventing the tail gas from being sucked back for the experiment according to claim 1, wherein a second sealing ring (10) is arranged at one end of the second cavity (8-2) close to the fourth pipe body (8-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120699015.7U CN214916205U (en) | 2021-04-07 | 2021-04-07 | Automatic prevent suck-back experiment tail gas absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120699015.7U CN214916205U (en) | 2021-04-07 | 2021-04-07 | Automatic prevent suck-back experiment tail gas absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214916205U true CN214916205U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120699015.7U Active CN214916205U (en) | 2021-04-07 | 2021-04-07 | Automatic prevent suck-back experiment tail gas absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214916205U (en) |
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2021
- 2021-04-07 CN CN202120699015.7U patent/CN214916205U/en active Active
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