JP2572638B2 - Preparation funnel with equalizing tube - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a charging funnel with a pressure equalizing tube.

More specifically, the present invention relates to a charging funnel with a pressure equalizing tube capable of performing additional work of a fluid without disturbing a vacuum state of a reaction system or the like blocked from the outside or an atmosphere filled with an inert gas or the like.

The charging funnel with a pressure equalizing tube according to the present invention is one in which the drawbacks of a conventionally used charging funnel with a pressure equalizing tube are improved, and can be used for the same purpose.

[Prior Art] A charging funnel with a pressure equalizing tube, which has been used conventionally, has a structure as shown in FIG. 3, and the material is generally made of glass.

In FIG. 3, 21-21 is a main body 22-22, and an on-off valve 23-22 is attached to a lower part of the main body. This is a pressure equalizing pipe for communicating both sides of the mounted on-off valve 22-22.

A funnel equipped with a pressure equalizing tube as shown in FIG. 3 is, for example, a reaction for synthesizing aldol from aldehyde and alcohol using sulfuric acid, p-toluenesulfonic acid sulfuric acid ion exchange resin or the like as a catalyst, or an unstable substance (for example, aldehyde). For example, when performing a reaction using a Grignard reagent or a liquid having a high hygroscopicity), some devices are used in combination as shown in FIG.

 In FIG. 4, reference numeral 24-24 denotes a separating funnel for metering and supplying the reaction raw materials 25-25 denotes a reactor 26-26 a pressure reducing line and an inert gas supply line 27-27 denotes a pressure equalizing pipe inside the body of the equalizing tube. It is a liquid.

However, when a conventional funnel with a pressure equalizing tube as shown in FIG. 3 is used in combination with other equipment as shown in FIG. 4, there are various disadvantages as follows.

[Problems to be solved by the invention] The problems are as follows.

That is, for example, a charging funnel with a pressure equalizing tube, which has been conventionally used and has a structure as shown in FIG.
In the case of using as shown in FIG. 4, after adding the liquid 27-27 in the body of the equalizing tube main body, when adding more liquid, the on-off valve 22-22 attached to the lower part of the main body is closed. After that, the on-off valve attached to the lower part of the separating funnel 24-24 for measuring and supplying the charged raw material is opened. Then, the liquid in the separating funnel 24-24 is naturally charged into the body of the pressure equalizing tube main body.

However, at this time, the operator must close the on-off valve while observing the liquid level in the separating funnel 24-24 at a place where the liquid does not run out in the separating funnel 24-24.

Because, if the liquid runs out, even if the on-off valve 22-22 attached to the lower part of the equalizing tube main body is closed, external air is instantaneously passed through the equalizing tube 23-23. It penetrates into the system replaced with a vacuum or an inert gas and disturbs the state replaced with a vacuum or an inert gas.

Even if the state replaced by the vacuum or the inert gas is disturbed, the pressure reducing line or the inert gas supply line 26-
If the pressure is reduced or the inert gas is supplied again from 26 to perform the replacement, the reaction may not be hindered in some cases.

However, depending on the type of the reaction, it may be unfavorable even if the state of being replaced with a vacuum or an inert gas is disturbed even temporarily.

In view of such a situation, the present inventors have made intensive studies and completed the present invention.

[Constitution of the Invention] That is, the present invention relates to the following: (a) a main body having an on-off valve at at least one end; and (b) a main body which is disposed substantially parallel to and adjacent to the main body. (C) A branch pipe attached to a part of the pressure equalizing pipe. (D) Two directions for switching between a state of communication between the branch pipe and the pressure equalizing pipe. A charging funnel with a pressure equalizing pipe, comprising an on-off valve having an L-shaped passage.

Hereinafter, the use of the charging funnel with the equalizing tube according to the present invention and the effects obtained thereby will be described in detail with reference to FIG. 1 showing a state in which the embodiment product is combined with another crisis.

The names and roles of each component or device in FIG. 1 are as follows.

1-1 is a main body part of a charging funnel with a pressure equalizing tube according to the present invention, and the inside also serves as a container for temporarily filling a liquid to be subjected to a reaction.

Reference numeral 2-2 denotes an on-off valve attached to at least one end of the main body 1-1, which is usually attached to a lower portion of the main body 1-1.

By opening and closing the on-off valve, the supply of the liquid 8-8 temporarily filled in the body 1-1 of the main body to the reactor or the like is controlled.

3-3 is disposed substantially parallel to and adjacent to the main body 1-1.
The on-off valve 2- attached to the at least one end;
2 is a pressure equalizing tube for communicating the atmosphere on both sides, and is usually attached integrally to the main body.

Liquid does not flow through this part unless it is in a special use condition.

Reference numeral 4-4 denotes a separating funnel for metering and supplying the charged raw materials, and has a role of shutting off the outside atmosphere and the inside of the reaction system during the reaction by an on-off valve attached to the lower part.

 However, this is not an essential part of the present invention.

5-5 is a branch pipe attached to a part of the equalizing pipe,
It is connected to a pressure reduction line or an inert gas supply line.

Reference numeral 6-6 denotes an on-off valve having a two-way L-shaped passage. If the shape of this passage is T-shaped or linear, the intended function cannot be exhibited. Here is the point of the present invention.

7-7 is a condenser commonly used in chemical synthesis experiments and the like, and the upper part thereof is connected to a pressure reducing line or an inert gas supply line as required.

Further, an on-off valve may be set in the middle as needed.

Reference numeral 8-8 denotes a liquid in the pressure equalizing tube main body 1-1. Reference numeral 9-9 denotes a corner portion of the pressure equalizing tube. (In Fig. 1, an open / close valve is attached to the upper corner.) 10-10 is a stop valve used to control the flow of liquid added into and out of the pressure equalizing tube body 1-1. The same is required for types. (This is also not an essential part of the present invention like 4-4-.) 11-11 is a reactor, etc. 12-12 is a double-tube type nozzle section and pressure equalizing pipe 3-3.
It is a connection part with the lower part of.

The connecting portion between the nozzle portion on the outside (lower side in FIG. 1) of the on-off valve 2-2 attached to at least one end of the main body portion 1-1 and the lower portion of the equalizing tube 3-3 is It is more preferable to use a double pipe as shown in FIGS.

The reason is not only the difficulty of processing and the strength of the connection part, but also the passage of the liquid and the passage of the gas such as inert gas or the contact point with the vacuum atmosphere, so that it passes through the nozzle part. This is because the flow of the liquid may be disturbed.

The point of the present invention resides in that the on-off valve 6-6 is attached to the communication switching portion between the equalizing pipe and the branch pipe, and the valve passage of the on-off valve 6-6 has a two-way L-shaped passage. There.

If the valve passage of the on-off valve 6-6 has a mere two-way straight type passage or a three-way T-shaped passage, the intended effects of the present invention cannot be exhibited.

That is, when the valve passage is a two-way L-shaped passage as in the charging funnel with a pressure equalizing tube according to the present invention, the liquid can be added without disturbing the state in the system.

In the case where the on-off valve 6-6 is of a 360-degree rotation type without any limitation on the rotation angle, a branch pipe 5-5 attached to the equalizing pipe 3-3.
There is no particular limitation on the mounting position of the, and it is appropriate to make it easy to process.

When the on-off valve 6-6 is of a type having a limited rotation angle, it is appropriate to mount the valve on the upper or lower corner portion 9-9 instead of the straight portion of the equalizing tube 3-3.

The reason is related to the fact that the valve passage of the on-off valve 6-6 has a two-way L-shaped passage, so that the two directions of the pressure equalizing pipe and the branch pipe do not simultaneously communicate in a total of three directions. And to shut off the atmosphere inside the main body.

Next, two directions L using FIGS. 2 (a), (b) and (c) will be described.
Rotation position of the on-off valve 6-6 having a U-shaped passage and each passage X,
A description will be given of the communication positional relationship or the blocking positional relationship between Y and Z.

FIG. 2 (a) shows the opening and closing relationship when the L-shaped passage communicates the atmosphere side X above the liquid 8-8 in the main body 1-1 with the decompression line or the inert gas supply line side Z. FIG. 2 (b) shows the open / close relationship when the L-shaped passage connects the atmosphere side X inside the main body 1-1 to the pressure equalizing pipe, that is, the atmosphere side Y of the reaction system. FIG. Open / close position relationship when the upper passage side X of the liquid 8-8 of the main body 1-1 is cut off from the pressure equalizing tube, ie, the reaction system side Y, and the pressure reducing line or the inert gas supply line side Z. It is shown.

Liquid 8- in charging funnel body 1-1 with equalizing tube
When the liquid is further added after the charging of the tank 8 is completed, the on-off valve 2-2 attached to the lower part of the main body 1-1 is closed, and then the on-off valve 6-6 having a two-way L-shaped passage is provided. Is set as shown in FIG. 2 (c).

Next, the on-off valve attached to the lower part of the separating funnel 4-4 for measuring and supplying the reaction raw material is opened.

At this time, if a conventional charging funnel with a pressure equalizing tube is used, as described above, the operator observes how much the liquid in the separating funnel 4-4 has been reduced and opens and closes the valve so that the liquid does not run out. Must be closed.

On the other hand, in the case where the charging funnel with the equalizing tube of the present invention is used, even if the worker leaves the site and the liquid in the separating funnel 4-4 runs out, the time is 2 hours.
Since the pressure equalizing pipe line is shut off due to the opening / closing relationship of the L-shaped passage, the state in the reaction system is not disturbed.

After the liquid in the separatory funnel 4-4 is transferred into the body 1-1, the lower opening and closing valve of the separatory funnel 4-4 does not necessarily need to be closed. It is convenient when performing the work.

After such a state, the main body 1
The liquid can be additionally charged into the reactor by opening the on-off valve 2-2 attached to the lower part of the reactor -1.

At this time, if the on-off valve 2-2 is left open, the reduced pressure state or the inert gas atmosphere may be disturbed by a small amount of air that has flowed in, depending on the state of the work after the previous work.

When removing a small amount of air that has flowed in due to the improper cleaning state, or when replacing with an inert gas atmosphere, 2
The rotational position of the on-off valve 6-6 having the L-shaped
The original atmosphere may be established by connecting the pressure reducing line or the inert gas supply line as shown in FIG.

[Effect of the Invention] The merit of using the charging funnel with a pressure equalizing tube of the present invention is that even if the on-off valve at the lower part of the separating funnel 4-4 is forgotten to be closed before the liquid runs out, only the reaction system is depressurized by a kind of interlock function. The state or inert gas replacement state can be maintained, and the state can be easily returned to the original state.

[Brief description of the drawings]

FIG. 1 shows an example in which a charging funnel with a pressure equalizing tube according to the present invention is used in combination with various glass equipment and the like.
Reference numeral 6 denotes an on-off valve having a two-way L-shaped passage. FIGS. 2 (a), (b) and (c) show the rotational position of the on-off valve 6-6 having a two-way L-shaped passage and the communication relationship between the passages X, Y and Z. . FIG. 3 shows a conventional charging funnel with an equalizing tube. FIG. 4 shows an example when a conventional funnel with a pressure equalizing tube is used in combination with various types of glass equipment and the like.

Claims (1)

(57) [Claims] (A) a body body having an on-off valve at at least one end thereof; and (b) a body body disposed substantially parallel to and adjacent to the body body, on both sides of the at least one end on-off valve. (C) a branch pipe attached to a part of the pressure equalizing pipe; (d) an on-off valve having a two-way L-shaped passage for switching between a state of communication between the branch pipe and the pressure equalizing pipe. A funnel with a pressure equalizing tube, characterized by comprising: