CN206192826U - Novel surface tension experiment device - Google Patents

Abstract

The utility model discloses a novel surface tension experiment device, including the pressure bottle, at the sealed mouth -piece that is provided with of bottleneck of pressure bottle, the micropressure difference measuring apparatu is connected to the mouth -piece, the bottleneck and the dropping liquid of pressure leak sealing connection, the bottle end at the pressure bottle is provided with the leakage fluid dram. The pressure bottle still is provided with the overflow pipe, overflow catheter insertion pressure bottle bottom, the height that highly is less than the leakage fluid dram of port under the overflow pipe, the height that highly is less than the mouth -piece export of port on the overflow pipe. The utility model discloses a set up the overflow pipe, can simply effectually prevent that pressure bottle liquid from getting into the micropressure difference measuring apparatu, guaranteed that the instrument is long -term safe in utilization accurate with data, extracts the dropping funnel when having avoided the drainage simultaneously.

Description

A new type of surface tension experimental device

technical field

The utility model belongs to the technical field of liquid surface tension detection devices, in particular to a novel surface tension test device.

Background technique

The traditional surface tension experimental device consists of a pressure bottle, a micro-pressure differential measuring instrument and a surface tension measuring tube. During use, it is easy to drop too much liquid from the dropping funnel to the pressure bottle, causing the liquid to enter the micro-pressure differential measuring instrument, resulting in inaccurate measurement or even damage to the instrument. At the same time, the dropping funnel needs to be pulled out to drain the pressure bottle, which is likely to cause damage to the glass instrument.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the prior art, and provide a new type of surface tension experiment device, which can simply and effectively prevent the liquid in the pressure bottle from entering the micro-pressure difference measuring instrument, ensure the long-term use safety of the instrument and the accuracy of the data, and at the same time avoid Pull out the dropping funnel when draining.

The utility model is achieved through the following technical solutions:

A new type of surface tension experiment device, including a pressure bottle, a mouthpiece is sealed at the mouth of the pressure bottle, and the outlet of the mouthpiece is connected to a micro-pressure difference measuring instrument; the mouth of the pressure bottle is sealed with a dropping funnel; There is a drain port at the bottom of the bottle;

The pressure bottle is also provided with an overflow conduit. The overflow conduit is inserted into the bottom of the pressure bottle. The height of the lower port of the overflow conduit is lower than that of the drain port, and the height of the upper port of the overflow conduit is lower than the height of the outlet of the mouthpiece.

In the above technical solution, the liquid discharge port is provided with a valve.

In the above technical solution, the height of the drain port is 5-20mm higher than the lower port of the overflow conduit.

In the above technical solution, the outlet of the mouthpiece is 5-20mm higher than the upper port of the overflow conduit.

In the above technical solution, the mouth of the pressure bottle is provided with a sealing plug, and the mouthpiece, overflow conduit and dropping funnel are all sealed and arranged in the sealing plug.

Advantage and beneficial effect of the present utility model are:

After using the above device, when the pressure bottle has too much liquid, the liquid will first flow out from the upper port of the overflow conduit, effectively preventing the liquid from flowing into the micro-pressure difference measuring instrument from the mouthpiece, causing damage to the instrument; at the same time, the excess water in the pressure bottle will be discharged , only need to open the drain port, no need to unplug the dropping funnel, effectively preventing damage to the glass instrument. When draining, since the height of the lower port of the overflow conduit is lower than that of the drain port, after opening the drain port, there will be residual liquid passing through the lower port of the overflow conduit, so that the surface tension measuring instrument can be reused (save the link that liquid is dripped into the pressure bottle from the dropping funnel again so that the liquid level in the pressure bottle is higher than the lower port of the overflow conduit).

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among them: 1-dropping funnel; 2-pressure bottle; 3-drainage port; 4-mouthpiece; 5-overflow conduit; 6-sealing plug; 7-micro-pressure differential measuring instrument.

detailed description

The technical scheme of the utility model is further described below in conjunction with specific embodiments.

Referring to accompanying drawing 1, a kind of novel surface tension experimental device comprises pressure bottle 2, is provided with mouthpiece 4 in the bottle mouth sealing of pressure bottle 2, and mouthpiece 4 is connected micro-pressure difference measuring instrument 7; The dropping funnel 1 is sealed and connected; a liquid discharge port 3 is provided at the bottom of the pressure bottle, and a valve is provided at the liquid discharge port 3;

The pressure bottle 2 is also provided with an overflow conduit 5, the overflow conduit 5 is inserted into the bottom of the pressure bottle 2, the height of the lower port of the overflow conduit 5 is lower than the height of the drain port 3, and the height of the upper port of the overflow conduit is lower than the interface The height of the outlet of tube 4.

The height of the drain port 3 is 5-20mm higher than the lower port of the overflow conduit 5;

The height of the outlet of the mouthpiece 4 is 5-20mm higher than the upper port of the overflow conduit 5;

The bottle mouth of the pressure bottle 2 is provided with a sealing plug 6 , and the mouthpiece 4 , overflow conduit 5 and dropping funnel 1 are all penetratingly sealed and arranged in the sealing plug 6 .

During use, close the discharge port 3 valves, drip the liquid from the dropping funnel 1 into the pressure bottle 2, the liquid level in the pressure bottle 2 is higher than the lower port of the overflow conduit 5 (after the lower port of the overflow conduit is water-sealed, Can keep the water seal in the future), the surface tension experiment device can work normally.

Dropping funnel 1 drips into pressure bottle 2 to provide pressure for the surface tension measuring instrument. Since overflow conduit 5 communicates with the atmosphere, and the height of the port on the overflow conduit is lower than the height of mouthpiece 4 outlets, so when the pressure bottle 2 When the liquid level is too high, the overflow conduit 5 automatically has liquid flowing out, lowering the liquid level in the pressure bottle 2, preventing the liquid from entering the micro-pressure difference measuring instrument 7 from the outlet of the mouthpiece 4, and reminding to open the drain port 3 to discharge the pressure bottle 2 Too much liquid. When draining, since the height of the lower port of the overflow conduit 5 is lower than the height of the discharge port 3, after the liquid discharge port 3 is opened, there will be residual liquid passing through the bottom port of the overflow conduit 5, so as to facilitate surface tension measurement Reuse of the instrument (saving the link of dripping the liquid from the dropping funnel 1 into the pressure bottle 2 again so that the liquid level in the pressure bottle 2 is higher than the lower port of the overflow conduit 5).

This specific implementation scheme can effectively prevent the liquid in the pressure bottle from flowing into the micro-pressure difference measuring instrument, ensure accurate data, prevent the measuring instrument from being damaged, and simplify the drainage steps.

The utility model has been described as an example above. It should be noted that, without departing from the core of the utility model, any simple deformation, modification or other equivalent replacements that can be made by those skilled in the art without costing creative labor all fall into the Into the scope of protection of the utility model.

Claims (5)

1. a kind of novel surface tension force experimental provision, it is characterised in that：Including pressure bottle, it is provided with the bottle sealing of pressure bottle Mouthpiece, the outlet connection slight pressure difference measurement system of mouthpiece；The bottleneck of pressure bottle is tightly connected with dropping funel；In pressure bottle Bottom of bottle is provided with leakage fluid dram；

The pressure bottle is additionally provided with overflow conduit, and overflow conduit insertion pressure bottle bottom, the height of overflow conduit lower port is low In the height of leakage fluid dram, the height of the height less than mouthpiece outlet of overflow conduit upper port.

2. novel surface tension force experimental provision according to claim 1, it is characterised in that：Leakage fluid dram is provided with valve.

3. novel surface tension force experimental provision according to claim 1, it is characterised in that：The height of the leakage fluid dram is than overflowing The lower port 5-20mm high of conductance pipe.

4. novel surface tension force experimental provision according to claim 1, it is characterised in that：The height of the mouthpiece outlet 5-20mm higher than the upper port of overflow conduit.

5. novel surface tension force experimental provision according to claim 1, it is characterised in that：The bottleneck of pressure bottle is provided with close Blocking, the mouthpiece, overflow conduit and dropping funel are through being sealingly disposed in sealing-plug.