JPS59109439A - Piping structure for tank rulley - Google Patents

Abstract

PURPOSE:To shorten working time by communicating bottom valves in a plurality of tank chambers through two pipings then coupling said pipings through each pump to delivery thereby performing suction/delivery works of different liquid simultaneously. CONSTITUTION:Bottom valves are provided in each of a plurality of tank chambers formed by splitting the interior of tank then proper number of them 3 are communicated sequentially through first piping 4 while other bottom valves 3 are sequentially coupled through second piping 5. Then first and second pipings 4, 5 are coupled through a branch conduit 6 to the delivery 8 having delivery valve 7. Pumps 9 are provided respectively in said branch conduit 6. Through operation of each valve and pump 9, suction and delivery of two different liquids can be performed simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the piping structure of a tank lorry in which the inside of the tank is divided into a plurality of tank chambers. In order to mix liquids, the inside of the tank is usually divided into multiple tank chambers, and each of these tank chambers is connected to the discharge port through a bottom valve provided with ftK. For this type of piping structure, each bottom valve has a VC
The first thing to consider is a configuration in which separate piping is installed for each outlet to connect to a dedicated discharge port.

Although such a configuration has the advantage that each mixed liquid can be discharged and unloaded at the same time, it is practically difficult to provide a pump for each pipe, and the discharge and unloading are performed only by gravity. As a result, it was not possible to handle unloading to above-ground tanks, transshipment due to accidents or breakdowns, etc., and problems with space and work efficiency were also pointed out.

Therefore, we developed a piping structure in which piping is provided to communicate between each tank chamber through each bottom valve, and this piping is connected to the discharge port through a switching valve, one pump, etc. was used. However, with such a configuration, suction/loading and discharge/unloading using a pump are performed using a common pump, but they must be performed for each type of mixed liquid, which takes time. In addition to poor bundling efficiency and business problems, mixed loading n7: + When lubricating oil is loaded as different liquids, the lubricating oil may contain additives that have properties that are particularly different from those of other liquids. Because of this, it is not possible to share pumps, piping, discharge ports, etc. with other liquids in time, and for this reason, conventionally, such lubricating oils were not mixed with other liquids. In view of the above circumstances, the present invention was developed by using a single dedicated tank reeler to transport the loaded cargo, and the bottom valves of multiple tank chambers are separated and communicated by two pipes. In this way, different liquids can be sucked/loaded and discharged/unloaded into different pumps, piping, etc. by connecting the discharge ports Vr through each pump, and these operations can be performed simultaneously. It became possible to do this in parallel, which shortened the time required, and also made it possible to load lubricating oil in combination with shellfish liquid. The purpose is to

The present invention will be described below based on embodiments shown in the drawings.

The piping structure of the tank lorry according to the present invention, which will be explained with reference to its structure, has a plurality of tank chambers 2, 2. ... and an appropriate number of tank chambers 2. ... Bottom valve provided 3.・
. . , and the other tank chamber 2.・・・Nisoj, each has a bottom valve 3. . . , and a second piping 5 which communicates with the power source is installed.

And this first pipe 4. The second distribution v5 is connected to the discharge valves 7, 7 . The discharge ports 8, 8 . . . It is connected to ..., and Tora no Uni 1
The piping structure according to the present invention, in which a pump 9°9 is provided in each of the passages 6 and 6, can be constructed as a VCPR as described above, but the first piping 4 and the second piping are 5 and on-off valve 10
at least the first pipe 4
．． By providing a cutoff valve 11 between at least one adjacent bottom valve 3, 3 in either one of the second pipes 5, the tank chambers 2, 2. It is possible to further improve the division function of .... For example, FIG. 1 shows an example in which one shutoff valve 11 is provided in the second pipe 5 between the bottom valve 3 on the on-off valve 10 side and the connection point to the discharge port 8. As shown in FIG. 2, this shutoff valve 11 is provided in the second pipe 5 on three sides and has a nine-bottom valve 3.
Of course, it is also possible to provide two in total by providing each between 3 and 3. Note that the cutoff valve 11 is
It may be provided only on the first pipe 4, or may be provided on both the palm pipe 41 and the second pipe 5.

A first pipe 4, a second pipe 5, and a second pipe 5 extend on both sides of the tank 1, and are connected by nine branch pipes 6 to a discharge port 8 having a discharge valve 7 provided therein. The branch pipe may further extend to the rear end of the tank l and be connected to a discharge port provided at that location and provided with a discharge valve. Note that a discharge hose (not shown) is connected to the discharge port 8.

If the pump 9 provided in the branch pipe 6 is provided with a relief valve, overload during switching, at the neutral position, etc. can be prevented. Furthermore, if a switching valve such as a four-way valve 12 is provided in the branch pipe 6 to freely switch the suction/discharge direction of the pump 9, one pump 9 can be used for both suction and discharge. You will be able to do that.

The above is the explanation of the configuration.

Next, its effect will be explained.

First, the two types of liquids are sucked in and loaded using the pump 9 (11), with each bottom valve 3 and discharge valve 7 opened, and then the InO pump 9 is operated.

From an external tank, etc., a discharge hose, a discharge port 8, a discharge valve 7,
Liquid is loaded into each tank chamber 2 via the branch pipe line 6, the first pipe 4 or the second pipe 5, and the bottom valve 3.

In addition, when discharging and unloading, each of the bottom valves 3 and the discharge valve 7 are opened, and the liquid is loaded into each tank chamber 2 by gravity without operating the pump 9. The cargo is unloaded into an underground tank, etc., or by operating the mechanism pump 9, it follows the reverse route to the above-mentioned suction/loading case to an underground tank, an above-ground tank, etc.

Here, each pump 9, branch pipe 6. The discharge valve 71 and the discharge valve 8 are separate and independent for the fJx pipe 4 and the second pipe 5, and are not shared, so the liquid in the tank chamber 2 on the first pipe 4 side and the A liquid different from the liquid in the tank chamber 2 on the side of the 2 piping 5 can be loaded into and unloaded from the pump 9 at the same time, and each liquid can be loaded into and unloaded from the pump 91.
Loading and unloading are carried out without using the branch pipe 6 or the like in common.

Furthermore, when the on-off valve 10 and the shutoff valve 11 are installed in a box configuration, a combination of W connection between the first pipe 4, the second pipe 5 and the adjacent bottom valve 3. This allows the number of tank chambers 2 to be loaded with liquid to be changed at will. For example, if a tank truck has four tank chambers 2, the number of liquid to be loaded can be changed at will. When using two liquids, A and B, it is possible to divide the tank chamber 2 into five tanks as shown in the following table.

Note that if only one type of liquid is loaded into each tank chamber 2 of the tank 1, it is also possible to unload all the liquid through one discharge port 8.

As explained above, the piping structure of the tank trailer according to the present invention is such that a plurality of tank chambers are separated and communicated by two pipings such as bottom valves, each of which is connected to a discharge port via a pump. Therefore, when pouring different types of liquids into a tank, especially in the case of lubricating oils containing additives of different properties, the liquids with different glazes must be placed in the same pump, piping, and discharge port as the other liquids. Since lubricating oil can be loaded, discharged, and unloaded without the use of other liquids, lubricating oil can be transported mixed with other liquids in a single tank truck, resulting in a dramatic improvement in transportation efficiency. Furthermore, different liquids can be suctioned/loaded and discharged/unloaded at the same time, reducing work time and improving efficiency. If a shutoff valve of K is installed,
The function of dividing the tank by tank chambers is further improved, and the appropriate number of tank chambers can be selected at will according to the amount of liquid to be loaded, which also contributes to improving transportation efficiency. be.

As described above, according to the present invention, the problems of the conventional example are completely eliminated, and the effects brought about by the present invention are remarkable and great.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the piping structure of a tank lorry according to the present invention. FIG. 2 shows another embodiment of the piping structure for a tank lorry according to the present invention. FIG. 3 is a front view of a tank truck having a piping structure shown in FIG. 1. Explanation of symbols l...Tank 2...Tank chamber 3...Bottom valve 4...1st Piping 5... Second pipe 6... Branch pipe 7... Discharge valve 8... Discharge Outlet 9...Pump 10...On-off valve 11...Shutoff valve 12...Four-way valve 1/ 4v et 6

Claims (1)

[Scope of Claims] (υ The inside of the tank is divided into a plurality of tank chambers, and a first pipe that communicates with an appropriate number of tank chambers through a bottom valve provided with fLK, and a first pipe that communicates with each of the other tank chambers, A second pipe is provided which communicates through the provided bottom valve.The first pipe and the second pipe are each connected to a discharge port having a discharge valve via a branch pipe. The piping structure of a tank lorry is characterized in that a pump is provided in each of the branch pipes. (2) The inside of the tank is divided into a plurality of tank chambers, and an appropriate number of tank chambers each have an fLVc. A first pipe communicates with the provided bottom valve, and a second pipe communicates with the other tank chamber through the provided bottom valve.The first pipe and the second pipe each have n-branches. A pump is provided in each of these branch pipes, and the first pipe and the second pipe have on-off valves. and a cutoff valve is provided between at least one adjacent bottom valve in one or one of the chairs of the first pipe and the second pipe. Tank truck piping structure.