JP3040530B2 - Fluid filling device for tanks with partition walls - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling device for filling a plurality of chambers divided by partition walls with a fluid.

[0002]

2. Description of the Related Art In general, for example, in a tank lorry that handles a fluid that is a dangerous substance under the Fire Service Law, the inside is divided by a partition wall according to laws and regulations, and each divided room capacity is 4 kiloliters or less. For this reason, when filling liquid
An injection pipe is connected to each of the chambers partitioned by the partition walls, and a valve disposed in the injection pipe is opened and closed to fill the fluid. However, this method requires a long time and troublesome work. . Also, if all the valves arranged in each injection pipe are opened to fill the fluid at the same time, the amount of fluid flowing into each chamber greatly varies, and it is not possible to inject to a predetermined amount, This could not be employed because there was also a risk of liquid spilling out in some chambers due to the aforementioned variations.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and provides a filling device capable of simultaneously filling each chamber partitioned by a partition with a plurality of chambers with a fluid. It is the purpose.

[0004]

Means for Solving the Problems In order to achieve the above object, a fluid filling device for a tank with a partition wall according to the present invention is provided by branching from a fluid supply pipe into each of a plurality of chambers divided by a partition wall. A branch injection pipe provided with an orifice is connected, and a liquid level gauge is installed in any one of the plurality of chambers, and filling of the chamber in which the liquid level gauge is installed with other fluids is performed. The flow rate of the fluid flowing through each branch injection pipe is adjusted with the orifice so that it is slightly faster than the filling of the chamber with the fluid.
The fluid level gauge detects that the fluid has been filled in a predetermined amount.
The shut-off valve disposed on the fluid supply pipe is closed in response to the detection signal.

[0005]

According to the present invention, a branch injection pipe branched from a fluid supply pipe is connected to each of a plurality of chambers partitioned by partition walls, and filling of a chamber in which a liquid level gauge is installed with another fluid is performed. Orifice the flow into each branch so that it is slightly faster than filling the chambers evenly.
Since the level is always adjusted, the chamber where the liquid level gauge is installed always becomes the predetermined amount first, so the liquid level at that time is detected,
Since the whole injection is stopped by the detection, the injection of the fluid into each chamber is finished at the same time, there is no risk of overflow of the liquid from any chamber, and the ratio is slightly higher in one chamber, and the others are equally. It can be injected, and the difference in the filled amount can be kept within a predetermined range of variation.

[0006]

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows an application to a tank lorry in which a tank 1 is mounted on a lorry.
It is divided into three chambers 3B and 3C. Reference numeral 4 denotes a branch pipe connected to the fluid supply pipe 5, and branch injection pipes 4A, 4B, and 4C for injecting fluid into the chambers 3A, 3B, and 3C partitioned by the partition walls 2, 2 by the branch pipe 4. Branch to
Connect to each room.

Each of the chambers 3 partitioned by the partition walls 2, 2
A, 3B and 3C, branch injection pipes respectively connected to
A, 4B and 4C are provided with orifices 6A, 6B and 6C, respectively.
The flow rate of the fluid flowing through A, 4B and 4C is adjusted .
7 is a chamber 3A, 3 partitioned by the partition walls 2, 2 described above.
This is a liquid level gauge installed in any one of the chambers B and 3C, for example, the chamber of the chamber 3A.

Each of the chambers 3 partitioned by the partition walls 2, 2
A, branch injection pipe 4 for injecting fluid into 3B and 3C
A, 4B and 4C are used to inject the fluid into the chamber 3A where the liquid level gauge 7 is installed. The fluid flowing through the orifice 6A provided in the branch injection pipe 4A is injected into the other chambers 3B and 3C. Branch injection pipe 4A so that it can flow at a rate 2 to 3% larger than the amount of fluid flowing through orifices 6B, 6C provided in branch injection pipes 4B, 4C.
Adjusting the orifice 6A, a plurality of other chambers 3B, branch injection pipe 4B for injecting fluid into 3C, 4C adjusts its orifices 6B, a 6C to flow at a rate equivalent. A branch injection pipe 4 is provided in each of the chambers 3A, 3B and 3C.
If the size of each chamber is the same, the amount flowing through A, 4B, and 4C is larger than the amount flowing through the branch injection pipe 4A by 2 to 3% than the amount flowing into the other chambers.
When the sizes of A, 3B and 3C are different, the orifice 6A of the branch injection pipe 4A is compared with the ratio of the size ratio.
Through the chamber at a rate of 2-3% higher.

Reference numeral 8 denotes a shut-off valve disposed upstream of a connecting portion 9 to which the branch pipe 4 of the fluid supply pipe 5 is connected.
The shut-off valve 8 is shut off by a signal from a liquid level gauge provided in one of the chambers 3A, 3B and 3C divided into a plurality of chambers of the tank 1. Also, 10
A, 10B, and 10C are the branch injection pipes 4A, 4B,
4C, which are used to inject fluid into each chamber as needed. Reference numeral 11 denotes a fluid storage tank for supplying a fluid to the fluid supply pipe 5.

The present embodiment is configured as described above.
A plurality of chambers 3A, 3B, 3 partitioned by partitions 2, 2
In order to simultaneously inject the fluid into each of the chambers of the tank 1 having C, branch injection pipes 4A, 4B and 4C are connected to the plurality of chambers 3A, 3B and 3C, respectively, and the branch injection pipes 4A and 4B are connected. , 4C, is connected to a fluid supply pipe 5 connected to a fluid storage tank 11, and a shutoff valve 8 disposed on the fluid supply pipe 5 is opened to supply the fluid to each branch injection pipe 4A,
When the liquid is injected into each of the chambers 3A, 3B and 3C of the tank 1 via 4B and 4C, the branch connected to the chamber 3A in which the liquid level gauge 7 is installed among the branch injection pipes 4A, 4B and 4C. The orifice 6A provided in the injection pipe 4A allows the fluid to pass from the orifices 6B, 6C provided in the branch injection pipes 4B, 4C connected to the plurality of other chambers 3B, 3C by two to two.
The orifice 6 provided in the branch injection pipes 4B and 4C connected to the other chambers 3B and 3C is 3% higher.
Since the fluids are injected into B and 6C at a substantially equal rate, a predetermined amount is always injected into the chamber 3A in which the liquid level gauge 7 is installed, and at that time, the other plurality of chambers 3B , 3
C will be injected 2-3% less. In the adjustment of the flow rate of the fluid by the orifices 6A, 6B and 6C, it is necessary to determine the orifice diameter in consideration of the pressure loss of the pipe and the problem of limiting the flow velocity in order to prevent static electricity.

Therefore, the liquid level gauge 7 installed in the chamber 3A into which a predetermined amount is first injected detects the liquid level, and a signal generated based on this detection connects the connecting portion of the branch pipe 4 of the fluid supply pipe 5 to the connecting part. The shut-off valve 8 provided on the upstream side of 9 is closed, and the injection of fluid into the tank 1 is stopped at the same time. As described above, by simultaneously stopping the injection of the fluid into the tank 1, it is possible to completely prevent the fluid to be injected from flowing out of the tank 1. Then, by simultaneously stopping the injection of the fluid into the tank 1, the fluid separated completely by the partition wall can be completely removed in a short time without operating individual valves similarly to a general tank having no partition wall. It can be filled.

Further, the plurality of chambers 3B and 3C in which the liquid level gauge is not installed are filled uniformly, and these chambers 3B and 3C are not completely filled with the fluid. Valves 10A, 10B, 10C disposed on pipes
It is also possible to make it full by operating.

[0013]

According to the present invention, in order to simultaneously inject a fluid into a plurality of chambers of a tank partitioned by a partition, a liquid level gauge is installed in one of the plurality of chambers, and the liquid level gauge is installed. the by chambers initially adjusted orifice attached to the branch injection pipe connected to each chamber so as to reach the predetermined amount, note by the level gauge
When it is detected that the amount of fluid to be supplied has reached a predetermined amount, the shut-off valve provided on the fluid supply pipe is closed by this detection signal, and the fluid to be injected into the tank is simultaneously stopped. There is no possibility of overflow from any of the plurality of chambers, and by simultaneously stopping the injection into the tank, a complicated valve operation can be performed for a tank with a partition as well as a general tank without a partition. The fluid can be safely filled in a short time without need.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a tank lorry in which a method for filling a tank with a partition wall with a fluid according to the present invention is performed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank 2 Partition wall 3A room 3B room 3C room 4 Branch pipe 4A Branch injection pipe 4B Branch injection pipe 4C Branch injection pipe 5 Fluid supply pipe 6A Orifice 6B Orifice 6C Orifice 7 Level gauge 8 Shut-off valve

Claims (1)

(57) [Claims] A plurality of chambers divided by a partition are connected to a branch injection pipe branched from a fluid supply pipe and provided with an orifice, and a liquid level is applied to any one of the plurality of chambers. And a flow rate of the fluid flowing through each of the branch injection pipes so that the filling of the fluid in the chamber in which the liquid level gauge is installed is slightly faster than the filling of the fluid in the other chambers.
And the liquid level gauge indicates that the fluid has been filled in a predetermined amount.
And a shutoff valve disposed in the fluid supply pipe is closed in response to the detection signal.