CN204490481U - A kind of volatilization prevention tap funnel - Google Patents
A kind of volatilization prevention tap funnel Download PDFInfo
- Publication number
- CN204490481U CN204490481U CN201520152248.XU CN201520152248U CN204490481U CN 204490481 U CN204490481 U CN 204490481U CN 201520152248 U CN201520152248 U CN 201520152248U CN 204490481 U CN204490481 U CN 204490481U
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- CN
- China
- Prior art keywords
- catheter
- tap funnel
- main body
- body tube
- shaped threeway
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Abstract
A kind of volatilization prevention tap funnel, by main body tube (3), air filter (5), T-shaped threeway (7), liquid controller (8), catheter, ventilation flue forms, the top of main body tube (3) is inner conical ground (2), inner conical ground (2) is closed by grinding port plug (1), the below of main body tube (3) is the first catheter (4), first catheter (4) is connected with T-shaped threeway (7), the other end of T-shaped threeway (7) is connected with air filter (5) by ventilation flue (6), the upper end of the second catheter (9) is connected with the first catheter (4), liquid controller (8) is placed on the upper end of the second catheter (9), the lower end of the second catheter (9) is connected with embedding pipe (11), inner conical grinding port plug (10) is placed on embedding pipe (11).
Description
Technical field
The utility model relates to laboratory special glass vessel, particularly relates to tap funnel.
Background technology
In chemical engineering experiment, usually need to carry out dropwise reaction liquid with tap funnel, but for dropping volatile liquid (ammoniacal liquor, hydrochloric acid, ammonium sulfide, carbon disulphide, ether, benzene and other volatile organic solvent) time, the volatilization of reactant liquor not only can bring impact to the accuracy of experiment but also can affect the healthy of experimental implementation person.Use piston-type switch, because its leak tightness is poor, usually need to smear petroleum ointment to seal, use petroleum ointment sealing may cause again blocking, and when dripping organic solvent, organic solvent multipotency dissolves petroleum ointment, not only causes reactant liquor to leak, and the petroleum ointment simultaneously dissolved in organic solvent also can bring certain impact to experiment.Therefore many problems are brought to experimental implementation.
Patent CN201210042071.9 discloses a kind of tap funnel.It comprises inner conical ground, main body tube, piston, male-tapered ground, arm and grinding port plug, inner conical ground, main body tube, piston, male-tapered ground arm are connected in turn, interior ground is connected with grinding port plug, and grinding port plug is provided with the air extractor vent matched with interior ground air extractor vent.Length of tube enough length can directly be inserted in reactant liquor can minimizing volatilization to a certain extent, the problem such as fundamentally do not solve switch seal and reactant liquor is volatile.
Patent CN201220303593.5 discloses a kind of constant pressure funnel, particularly relate to a kind of constant pressure funnel being convenient to adjust flow, comprise columniform constant pressure funnel body, the two ends up and down of constant pressure funnel body are provided with ground, the side of constant pressure funnel body is with constant voltage arm, the built-in dropping liquid mouth of lower ground, be furnished with section door on the upside of described dropping liquid mouth, described section door is provided with the liquid flooding road of augmented flow gradually.Owing to employing the liquid flooding road of augmented flow gradually, not only easy to operate in result of use, can adjust calmly flow velocity in very large interval; And be easy to control, Discrete control flow steadily can reach evenly at specified time and wants cube, but this tap funnel is not but suitable for and drips volatile reactant liquor and structure is also complicated.
Summary of the invention
The purpose of this utility model is to provide a kind of volatilization prevention tap funnel.
The utility model is a kind of volatilization prevention tap funnel, this tap funnel is by main body tube 3, air filter 5, T-shaped threeway 7, liquid controller 8, catheter, ventilation flue forms, the top of main body tube 3 is inner conical grounds 2, inner conical ground 2 is closed by grinding port plug 1, the below of main body tube 3 is the first catheter 4, first catheter 4 is connected with T-shaped threeway 7, the other end of T-shaped threeway 7 is connected with air filter 5 by ventilation flue 6, the upper end of the second catheter 9 is connected with the first catheter 4, liquid controller 8 is placed on the upper end of the second catheter 9, the lower end of the second catheter 9 is connected with embedding pipe 11, inner conical grinding port plug 10 is placed on embedding pipe 11.
The volatilization prevention tap funnel that the utility model provides, carries out if drip process need, stands good, at air filter termination desired gas, can avoid the contact with air in course of reaction, avoid the generation of side reaction largely under special atmosphere.
Accompanying drawing explanation
Fig. 1 is novel volatilization prevention tap funnel structural representation, and Reference numeral and corresponding name are called: top plug 1, inner conical ground 2, main body tube 3, first catheter 4, air filter 5, ventilation flue 6, T-shaped threeway 7, liquid controller 8, the second catheter 9, inner conical grinding port plug 10, embedding pipe 11.
Detailed description of the invention
As shown in Figure 1, the utility model is a kind of volatilization prevention tap funnel, this tap funnel is by main body tube 3, air filter 5, T-shaped threeway 7, liquid controller 8, catheter, ventilation flue forms, the top of main body tube 3 is inner conical grounds 2, inner conical ground 2 is closed by grinding port plug 1, the below of main body tube 3 is the first catheter 4, first catheter 4 is connected with T-shaped threeway 7, the other end of T-shaped threeway 7 is connected with air filter 5 by ventilation flue 6, the upper end of the second catheter 9 is connected with the first catheter 4, liquid controller 8 is placed on the upper end of the second catheter 9, the lower end of the second catheter 9 is connected with embedding pipe 11, inner conical grinding port plug 10 is placed on embedding pipe 11.
As shown in Figure 1, air filter 5 can cotton and special filtering material beyond the Great Wall, is fixed between main body tube 3 and inner conical ground 2, must guarantees that the height of air-filtering arrangement is higher than liquid level with bungee.
The tap funnel that the utility model provides, its core part is, adopts T three-port structure under main body tube, connects main body tube, drain pipe and air ventilation flue respectively, replaces two-way piston switch with liquid controller.In titration process, drain pipe is connected with reaction system, only ventilation flue is connected with the external world, when opening regulating control, liquid is because the effect of gravity is toward current downflow, and the pressure in main body tube is just less than ambient pressure, there is outside air and will enter into along ventilation flue the balance that main body tube ensures external and internal pressure now due to difference of pressure, to guarantee the velocity-stabilization in dropping liquid process, the speed of dropping can pass through regulating control simple adjustment; If ventilation flue closes, the existence of pressure reduction, titration process then can not normally carry out.
As shown in Figure 1, main body tube 3 is connected with T-shaped threeway 7, and T-shaped threeway 7 fills device 5 with air filtration respectively again and the second catheter 9 is connected.As shown in Figure 1, T-shaped threeway 7 and ventilation flue 6 joint are provided with bayonet socket.The joint of the first catheter 4 and the second catheter 9 is provided with bayonet socket.As shown in Figure 1, the junction of embedding pipe 11 and the second catheter 9 is provided with bayonet socket.
Concrete operation method: after leak detection completes, open grinding port plug, close with grinding port plug after reactant liquor being joined tap funnel, slow conciliation regulating control, due to the effect of gravity, liquid will flow out, and air enters into tap funnel by air filter, reconcile to suitable speed, until dropping process terminates.The volatilization and this tap funnel that all effectively prevent reactant liquor in whole dropping process can be applicable in the reaction system of normal pressure and suitably decompression and pressurization.
Claims (5)
1. a volatilization prevention tap funnel, it is characterized in that this tap funnel is by main body tube (3), air filter (5), T-shaped threeway (7), liquid controller (8), catheter, ventilation flue forms, the top of main body tube (3) is inner conical ground (2), inner conical ground (2) is closed by grinding port plug (1), the below of main body tube (3) is the first catheter (4), first catheter (4) is connected with T-shaped threeway (7), the other end of T-shaped threeway (7) is connected with air filter (5) by ventilation flue (6), the upper end of the second catheter (9) is connected with the first catheter (4), liquid controller (8) is placed on the upper end of the second catheter (9), the lower end of the second catheter (9) is connected with embedding pipe (11), inner conical grinding port plug (10) is placed on embedding pipe (11).
2. volatilization prevention tap funnel according to claim 1, is characterized in that main body tube (3) is connected with T-shaped threeway (7), and T-shaped threeway (7) fills device (5) with air filtration respectively again and the second catheter (9) is connected.
3. volatilization prevention tap funnel according to claim 1, is characterized in that T-shaped threeway (7) and ventilation flue (6) joint are provided with bayonet socket.
4. volatilization prevention tap funnel according to claim 1, is characterized in that the first catheter (4) is provided with bayonet socket with the joint of the second catheter (9).
5. volatilization prevention tap funnel according to claim 1, is characterized in that embedding pipe (11) is provided with bayonet socket with the junction of the second catheter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152248.XU CN204490481U (en) | 2015-03-18 | 2015-03-18 | A kind of volatilization prevention tap funnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152248.XU CN204490481U (en) | 2015-03-18 | 2015-03-18 | A kind of volatilization prevention tap funnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204490481U true CN204490481U (en) | 2015-07-22 |
Family
ID=53569769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520152248.XU Expired - Fee Related CN204490481U (en) | 2015-03-18 | 2015-03-18 | A kind of volatilization prevention tap funnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204490481U (en) |
-
2015
- 2015-03-18 CN CN201520152248.XU patent/CN204490481U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20160318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |