JP2010202260A - Liquid injecting apparatus and injection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid injecting apparatus and an injection method which allow a predetermined injection quantity of liquid to be poured in a drum can or the like even when the injection is done through a funnel, by removing residual air in a container. <P>SOLUTION: An injecting vessel 3 is provided with a hose connection tube 7 that allows a hose 21 to be connected through a pipe 14, while the capacity of the injecting vessel 3 is set to be equal to or less than the volume of the upper space within a tank 16 into which liquid is transferred at the time when the liquid level in the tank 16 into which liquid is transferred reaches the lower end of the pipe 14, whereas an air-vent plug 17 is provided, at a position different from that of a pouring inlet on the upper surface of the tank 16 into which liquid is transferred, which allows the upper space to be released arbitrarily into the atmosphere. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid injection apparatus and an injection method for efficiently using an injection container.

  When injecting liquid into a container, the liquid injection amount can be confirmed if it is injected into a transparent container, but in a container such as a drum can that cannot be seen from the outside, check the liquid injection amount. Therefore, it is not uncommon for the amount of liquid injection to be less than expected due to fear of overflow due to liquid injection. Therefore, there is a problem that a sufficient amount cannot be injected into the container. As a countermeasure, a funnel having an air vent, which has a screw portion that can be screwed with a screw provided on an inner wall surface of a bowl-like body provided at an inlet / outlet of a container is known. (Patent Document 1).

JP-A-8-244891

  However, even when a liquid is injected into a drum can or the like using a funnel, there has been a problem that a planned liquid cannot be injected unless the air remaining inside the container is removed.

  Therefore, the present invention eliminates the above-mentioned conventional problems, and even when a liquid is injected into a drum can etc. with a funnel, the air remaining inside the container can be extracted to the outside and a predetermined injection amount can be injected. An object of the present invention is to provide a liquid injection apparatus and an injection method.

  In order to achieve the above object, the invention described in claim 1 is a transfer source container for storing a liquid, a transfer destination tank provided with an inlet for transferring the liquid from the transfer source container, and a pipe projecting from the lower end. A liquid injection device comprising: a funnel-like injector that can be inserted into the inlet in a sealed state; and a pump and a hose that can transfer liquid from the transfer source container to the injector. In addition, a hose connection cylinder that can be connected to the hose through the pipe is provided, and the capacity of the injector is set so that the liquid level in the transfer destination tank reaches the lower end of the pipe. An air vent plug that can arbitrarily open the upper space to the atmosphere is provided at a position different from the inlet on the upper surface of the transfer destination tank.

  In addition to the invention described in claim 1, the invention described in claim 2 is provided with notifying means for notifying that the liquid level in the transfer destination tank has reached the lower end of the pipe in the injector. It is in.

  According to a third aspect of the present invention, in addition to the second aspect of the present invention, the notifying means is a float that is supported so as to be movable up and down within a guide pipe that penetrates the pipe.

  A fourth aspect of the invention is a liquid injection method for transferring a liquid from the transfer source container to the transfer destination tank using the liquid injection device according to any one of the first to third aspects, wherein the transfer The pipe of the injector is inserted in a sealed state into the inlet of the previous tank, the transfer source container and the hose connection tube of the injector are connected by the pump and the hose, and the air vent plug is closed. The liquid is transferred from the transfer source container to the transfer destination tank via the hose connection cylinder, the liquid in the transfer destination tank reaches the lower end of the pipe, and the liquid overflows from the transfer destination tank into the injector. In the injection method, when the liquid of the volume is stored in the injector, the transfer by the pump is stopped, the air vent plug is opened, and the liquid in the injector is returned to the transfer destination tank. .

  According to the present invention, in the liquid injection device, the air remaining in the transfer destination tank is discharged, and the air and the liquid remaining in the transfer destination tank can be easily replaced. An amount of liquid can be transferred. The same applies to the case where the liquid is transferred to a transfer destination tank that cannot be seen inside. In addition, since it is easy to replace the air and the liquid remaining in the transfer destination tank, it is possible to transfer only the liquid without including bubbles. In addition, it is not necessary to visually check the inside of the transfer destination tank, and the working time can be shortened. Furthermore, since the liquid can be efficiently transferred to the transfer destination tank, the storage space of the transfer destination tank can be reduced and the transportation cost can be reduced. In addition, since the injection amount of the liquid does not become excessive in the transfer destination tank or the injector, the liquid does not overflow from the transfer destination tank or the injector. As a result, liquid spills out of the transfer destination tank, and the upper surface and floor of the transfer destination tank are not soiled, and no cleaning work is required. Further, when this liquid contains organic pollutants, it is not necessary to pay attention to the transfer of the liquid in order to prevent problems such as the liquid touching the human body and overflowing outside the transfer destination tank.

  In particular, according to the second and third aspects of the invention, it becomes easy to understand the timing of liquid accumulation in the injector, and a careful response such as slowing the liquid supply speed becomes possible. Thereby, there is no possibility that the liquid overflows from the injector.

It is explanatory drawing which shows the whole structure of a liquid injection apparatus. It is sectional explanatory drawing which shows the cross section of an injector. It is a plane explanatory view showing a plane of an injector. It is sectional explanatory drawing which shows the state which connected the injection device to the transfer destination tank. It is sectional explanatory drawing which shows the transfer state of the liquid which uses an injection device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the liquid injection device 1 includes a transfer source container 18 for storing a liquid 15, a transfer destination tank 16 provided with an injection port 16 a for transferring the liquid 15 from the transfer source container 18, and a lower end projectingly. A funnel-shaped injector 3 into which the pipe 14 can be inserted into the inlet in a sealed state, and a pump 19, a hose 21, and a hose 23 that can transfer the liquid 15 from the transfer source container 18 to the injector 3. . The transfer destination tank 16 is provided with an air vent plug 17 that can arbitrarily open the upper space to the atmosphere at a position different from the inlet.

Among these, as shown in FIG. 2, the injector 3 is provided with a hose connection cylinder 7 that can be connected to the hose 21 through the pipe 14, and a level confirmation tank 4 that temporarily stores the liquid 15, and a transfer A screw portion 5 that is screwed into an inlet screw portion of the front tank 16, a rubber seal portion 6 that is a detent for the screw portion 5, and an O-ring 10 are configured.
Among them, the level confirmation tank 4 is provided with a scale 13 on the inner peripheral side. As shown in FIG. 3, the level indicator guide pipe 8 and the hose connection port 7 to which the hose 21 for supplying the liquid 15 is attached are respectively welded to the inner wall surface of the opening 12, and are integrated with the injector 3. It has a structure. The level indicator guide pipe 8 includes a stopper 9 that prevents the level indicator 11 from falling into the transfer destination tank 16 at the lower end, and supports the level indicator 11 so as to be movable up and down.

  The pipe 14 of the injector 3 is attached in a sealed state to the inlet 16 a provided on the upper surface of the transfer destination tank 16, and a hose 21 is connected between the injector 3 and the pump 19. A hose 23 is connected between the container 18 and the transfer source container 18. The hose 21 includes a drain cock 22, and the hose 23 is a pressure when the liquid 15 inside the transfer source container 18 is transferred by the valve 24 on the side connected to the drain valve 28 of the transfer source container 18 and the pump 19. Is provided with a pressure gauge 27 for measuring the pressure, a valve 25 on the pressure gauge 27 side, and a release valve 26 for releasing the pressure of the pressure gauge 27.

In addition, the pump 19 is activated by turning on a hand switch 29 on the injector 3 side and a hand switch 30 on the pump 19 side in addition to a power switch (not shown) provided in the pump 19. It is possible.
As a result, the liquid 2 in the transfer source container 18 is transferred by the pump 19 of the liquid injection device 1 and transferred to the transfer destination tank 16 by the injector 3, thereby performing a predetermined amount of transfer.

  The movement of the liquid 15 to the transfer destination tank 16 by the liquid injection device 1 configured as described above is performed as follows.

First, as shown in FIG. 4, the screw part 5 of the injector 3 is inserted into the inlet of the transfer destination tank 16 (in this case, the planned injection amount is 200 L) with the air vent plug 17 closed. The rubber seal portion 6 is screwed to a position where the O-ring 10 is compressed. A hose 21 is attached between the hose connection port 7 and one of the pumps 19, and a hose 23 including the valve 24 is attached between the drain valve 24 of the transfer source container 18 and the other of the pump 19. . At this time, in order to attach the hose 23 to the drain valve 24, the closing plate of the drain valve 24 is removed, and a flange (not shown) at the tip of the hose 23 on the valve 24 side is attached.
Next, after the air vent plug 20 of the transfer source container 18 is opened, the drain valve 28 is also opened. Then, after opening the valve 24 and the valve 25, the head pressure at this time is confirmed by the pressure gauge 27. Note that the pressure at this time is confirmed to be in a vacuum state (negative pressure). Then, after confirming that the head pressure is in a vacuum state (negative pressure), the drain cock 22 is opened.

  Next, after the power switch of the pump 19 is turned on, the hand switch 29 and the hand switch 30 are turned on to start the pump 19 and suck the liquid 15 remaining in the transfer source container 18. As a result, the liquid 15 in the transfer source container 18 is sent from the hose 23 to the injector 3 via the pump 19 and the hose 21 and then transferred from the injector 3 to the transfer destination tank 16.

  Then, by continuing the transfer of the liquid 15, the liquid level of the liquid 15 reaches the lower end of the level indicator 11 as shown in FIG. Thereafter, the level indicator 11 set on the stopper 9 is pushed up in the level indicator guide pipe 8 by its own buoyancy. The level indicator 11 is the float of the present invention, and the level indicator guide pipe 8 is the guide pipe of the present invention.

Furthermore, by continuing the transfer, the liquid 15 is transferred to the position where the liquid level of the liquid 15 reaches the lower end of the pipe 14, and the surface of the shaft portion of the level indicator 11 is marked in the state shown in FIG. The formed line (not shown) is pushed up to a position where it can be seen from the end of the level indicator guide pipe 8. In this state, the injection amount of the liquid 15 in the transfer destination tank 16 is about 185 L, and the amount of air 2 remaining in the tank is about 15 L. Then, the level indicator 11 is extracted from the level indicator guide pipe 8.
It is the notification means of the present invention that this line is pushed up by the liquid 2 to a position protruding from the end face of the level indicator guide pipe 8.

  Thereafter, by continuing the transfer of the liquid 15, the liquid 15 a starts to overflow from the opening 12 to the level confirmation tank 4 as shown in FIG. Further, the liquid 15 continues to be transferred, and the surface of the liquid 15a that has started to overflow into the injector 3 reaches the position of the scale 13 marked on the inner periphery of the injector 3 (in this case, the inside of the injector 3). The peripheral storage capacity is 15L or less), the hand switch 29 and the hand switch 30 are turned off, and the power switch of the pump 19 is turned off to stop the operation of the pump 19 and the drain cock 22 is tightened. Next, the air vent plug 17 provided in the transfer destination tank 16 is opened. As a result, as shown in FIG. 5 (d), the air 2 in the transfer destination tank 16 is discharged to the outside of the transfer destination tank 16, and the liquid 15 a overflowing the inner periphery of the injector 3 is transferred to the transfer destination tank 16. Returned to. As a result, the injection amount in the transfer destination tank 16 becomes an injection amount obtained by adding the liquid 15a overflowing to the inner periphery of the injector 3 to the liquid 15 when the level indicator 11 is pushed up. It is possible to transfer up to 200L which is the specified capacity.

Next, after closing the drain cock 22, the hose 21 is removed from the hose connection port 7, the injector 3 is removed from the injection port of the transfer destination tank 16, the inlet is plugged, and the air vent plug 17. Close the plug. Then, the transfer destination tank 16 to which the liquid 15 and the liquid 15a have been transferred is replaced with a new transfer destination tank 16, and these operations are repeated in the same manner.
As a result, the liquid 15 in the transfer source container 18 is transferred by the pump 19 and injected into a new transfer destination tank 16, and then the liquid 15 a overflowing on the inner periphery of the injector 3 is returned to return the transfer source 15. The liquid 15 remaining in the container 18 is continuously transferred, and the liquid 15 remaining in the transfer source container 18 is transferred.

  After the transfer of the liquid 15 in the transfer source container 18 is completed by these operations, the drain valve 28 is first closed, then the valve 24 and the release valve 26 are closed, and then the drain cock 22 is opened. To do. Next, after turning on the hand switch 29 and the hand switch 30, the power switch of the pump 19 is turned on. Thus, after the pump 19 is started, it is confirmed that the display of the pressure gauge 27 becomes negative pressure, and the release valve 26 is gradually opened. As a result, air enters from the release valve 26 into the hose 23, and the liquid 2 remaining on the inner diameter of the hose 23 is sent out.

  Even after the liquid 15 is delivered by air, the release valve 26 is tightened without stopping the pump 19, the hand switch 29, hand switch 30, and the power switch of the pump 19 are turned off, and the connection port on the valve 26 side is turned off. After installing the closing plug, the drain cock 22 is closed. Then, the valve 25 is closed, and a removal plug is attached to the tip of the nozzle 21. Next, the air vent plug 20 is closed, and a closing plate is attached to the drain valve 28. After these operations are completed, the injector 3 is removed from the inlet of the transfer destination tank 16, and the inlet is plugged and the opened air vent plug 17 is closed.

As described above, the configuration of the liquid injection device 1 according to the present invention is provided with the hose connection cylinder 7 that can be connected to the hose 21 through the pipe 14 in the injector 3, and the capacity of the injector 3 is transferred to the destination. While the liquid level in the tank 16 is set equal to or smaller than the volume of the upper space in the transfer destination tank 16 when it reaches the lower end of the pipe 14, it is at a position different from the inlet on the upper surface of the transfer destination tank 16. In addition, an air vent plug 17 that can arbitrarily open the upper space to the atmosphere is provided.
As a result, the air 2 remaining in the transfer destination tank 16 is discharged, and the air 2 remaining in the transfer destination tank 16 and the liquid 15a can be easily replaced. The liquid 15 can be transferred. The same applies to the case where the liquid 15 is transferred to the transfer destination tank 16 where the inside cannot be seen. In addition, since it is easy to replace the air 2 remaining in the transfer destination tank 15 and the liquid 15a, the liquid 15a does not contain bubbles, and only the liquid 15a can be injected. In addition, it is possible to reduce the work time without visually recognizing the inside of the transfer destination tank 16. Furthermore, since the liquid can be efficiently transferred to the transfer destination tank 16, it contributes to the reduction of the storage space of the transfer destination tank 16 and the reduction of the transportation cost. In addition, since the liquid 15 in the transfer destination tank 16 and the injection amount of the liquid 15a into the injector 3 do not become excessive, the liquid 15 and the liquid 15a may overflow from the transfer destination tank 16 and the injector 3. Absent. As a result, the liquid 15 and the liquid 15a are spilled out of the transfer destination tank 16, and the upper surface and floor of the transfer destination tank 16 are not soiled, and no cleaning work is required. Further, when the liquid 15 and the liquid 15a contain organic pollutants, the liquid 15 and the liquid 15a are prevented from touching the human body or overflowing outside the transfer destination tank 16 in advance. No need to pay attention to the transfer of the liquid 15 or the liquid 15a.

In addition, the level indicator 11 that notifies the injector 3 that the liquid level in the transfer destination tank 16 has reached the lower end of the pipe 14 is moved up and down in the level indicator guide pipe 8 that penetrates the pipe 14. It is to support as possible.
As a result, the timing at which the liquid 15 accumulates in the injector 3 becomes easy to understand, and a careful response such as slowing the supply speed of the liquid 15 becomes possible. Thereby, there is no possibility that the liquid 15 overflows from the injector 3.

  Note that the liquid injection device of the present invention is not limited to the aspect of the above embodiment, and the structure and configuration of the injector can be appropriately changed as necessary without departing from the spirit of the present invention. it can.

  For example, the liquid injection device 1 of the present invention uses the fact that the line marked on the surface of the shaft portion of the level indicator 11 is pushed up to a position where it can be seen from the end of the level indicator guide pipe 8 as the notification means of the present invention. However, the shaft length of the level indicator 11 itself may be shortened so that the shaft body can be seen from the end of the level indicator guide pipe 8, and can be changed as appropriate.

  1 .. Liquid injection device 2.. Air 3. Guide pipe, 9 ·· Stopper, 10 ·· O-ring, 11 ·· Level indicator, 12 ·· Opening portion, 13 ·· Scale, 14 ·· Pipe, 15 ·· Liquid, 16 ·· Destination tank, 17 ..Air vent plug, 18 ... Transport source container, 19 ... Pump, 20 ... Air vent plug, 21 ... Hose, 22 ... Valve, 22 ... Drain cock, 23 ... Hose, 24 ... Valve, 25 ..Valve, 26..Valve, 27..Pressure gauge, 28..Drain valve, 29..Hand switch, 30..Hand switch.

Claims (4)

A transfer source container for storing liquid, a transfer destination tank provided with an injection port for transferring liquid from the transfer source container, and a funnel-shaped injector capable of inserting a pipe protruding from the lower end into the injection port in a sealed state And a liquid injection device comprising a pump and a hose capable of transferring liquid from the transfer source container to the injector,
The injector is provided with a hose connection cylinder that can be connected to the hose through the pipe, and the capacity of the injector is determined when the liquid level in the transfer destination tank reaches the lower end of the pipe. While set below the volume of the upper space in the transfer destination tank,
An apparatus for injecting liquid, wherein an air vent plug capable of arbitrarily opening the upper space to the atmosphere is provided at a position different from the inlet on the upper surface of the transfer destination tank.   The liquid injector according to claim 1, wherein the injector is provided with notifying means for notifying that the liquid level in the transfer destination tank has reached the lower end of the pipe.   The liquid injecting apparatus according to claim 2, wherein the informing means is a float supported so as to be movable up and down within a guide pipe penetrating the pipe. A liquid injection method for transferring a liquid from the transfer source container to the transfer destination tank using the liquid injection device according to claim 1,
The pipe of the injector is inserted in a sealed state into the inlet of the transfer destination tank, the transfer container and the hose connection tube of the injector are connected by the pump and the hose, and the air vent plug is closed. The liquid is transferred from the transfer source container to the transfer destination tank through the hose connection cylinder,
When the liquid in the transfer destination tank reaches the lower end of the pipe, the liquid overflows from the transfer destination tank into the injector, and when the liquid of the volume is stored in the injector, the transfer by the pump is stopped. And
Opening the air vent plug to return the liquid in the injector to the transfer destination tank.

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