JPS5984777A - Tank lorry - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tank [related to It is.

Conventionally, when loading the liquid content into the tank chamber of a tank lorry, 7) a loading nozzle installed at the filling station was installed at the entrance of the tank chamber. was inserted into the injection port to load the contents of the tank from the above-ground storage tank into the tank chamber.

This method requires a worker to climb to the top of the tank to open and close the injection port, operate the loading nozzle, etc., and has various drawbacks in terms of worker fatigue, work safety, work efficiency, etc.

For this reason, a method of loading the contents from the bottom of the tank chamber (
In this case, there was a method in which all loading and unloading operations could be carried out on the ground, without the need for workers to climb onto the top of the tank. In addition, if discharge valves are installed on both sides, and a branch connection is established from the bottom valve, loading and unloading can be carried out from either side of the tank. It can be operated on both the left and right sides, making work easier and improving C1 efficiency, but conventionally, this communication path was
As shown in the figure, because the horizontal circular piping that communicates with the bottom valve communicates the 11-volume valves on both sides, the tank is tilted to the loading side due to the slope of the ground, etc. , air may remain in the piping near the discharge valve on the opposite side.
For this reason, the tank loading capacity, including the internal volume of the piping, must be calculated.
If the scale of the measuring scale is inaccurate, the measuring scale cannot be used, so the discharge valve is installed on both sides of the tongue and the pipe.
), and was installed only on one side of the tank.

The present invention has steps l [t11] on both sides of the bottom of the tank, such as the bottom valve.
A communication path is provided in the outlet valve, and the top surface of this communication path is sloped upward from the discharge valve toward the bottom valve, and the bottom surface of the communication path between the discharge valves on both sides is made horizontal. To set up J:
The air in the communication passage gathers on the top surface of the communication passage due to buoyancy, gathers at the bottom valve, and flows into the tank chamber by listening to the bottom valve. Even if the bottom loading method is used by installing it on both sides, it is possible to accurately set the measuring scale, but it is also possible to use a tank truck that does not leave liquid behind near the discharge valve on the opposite side when discharging the liquid. It is intended to serve four people.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

In Figs. 1 to 6, J3 "U, 1" indicates a tank truck, which is constructed as follows.
3 is a tank mounted on the vehicle body 5, 7 is a driver's cab, 9, 9
．． ...is a wheel. The tank 3 has bulkheads 11, 11 .・
The tank chamber is divided into 13, 13°... by... Reference numeral 15 indicates a manhole cover installed on the top surface of the tank chamber 13 (a manhole cover that covers the open manhole), 17 indicates an inlet cover provided on the manhole cover 15 (an inlet cover that covers the input port), and 19 indicates a gas return on/off valve provided on the upper surface of the tank chamber 13. , 21 is each tank room 13.1
3. Installed in [] hoop return on/off valve 19, 19.
. . , which communicates with the upper part of an above-ground storage tank (not shown) from a gas return connection port 23 provided at the end via a gas return boss 24. 25 is a bottom valve provided at the bottom of the tank chamber 13; 27 is a bottom valve 25; and discharge valves 29 provided on both sides of the bottom of the tank 3.
29, the top surface of which is inclined upward from the discharge valve 29 toward the bottom valve 25, and the bottom surface of which is provided horizontally between the discharge valves 29 and 29 on both sides. .

The gas return on-off valve 19 is constructed as follows. Reference numeral 31 denotes a valve body 3 which is connected to and fixed to the upper part of the tank chamber 13 and has a communication passage 33 communicating between the tank chamber 13 and the waste return passage 21 inside.
5 is fixed to the valve stem 37, and the valve stem 37 vertically passes through the valve body 31 so as to be able to rise and fall freely, and the valve body 35 is urged downward to close the communication path 33 by a bullet 1139 provided at the bottom. A handle 41 is screwed onto the upper end of the valve stem 37, and a bow 1 is formed so that by rotating the handle 41, the valve stem 37 is pulled up and the valve body 35 opens the communication path 33. .

The bottom valve 25 is constructed as follows. In other words, 4
Reference numeral 3 denotes a valve body fixed to the bottom of the tank chamber 13, and a valve body 47 for opening and closing a passage 45 communicating between the tank chamber 13 and the communication passage 27 is fixed to a valve stem 49 inside. Bar I!
'I9 passes through the valve body/I3 so as to be vertically movable. The valve body 47 is supported by a support frame 51, which is synonymous with the valve body 43, so as to be able to rise and fall freely, and is biased downwardly in the downward lj direction where the valve body 47 closes the passage 45. The arm is fixed to the lll1h57 which is rotatably supported in the lower part of the communication path 27, and engages with the lower end of the support 49.

59 is an operating arm fixed to the shaft 57, and the operating arm 6
an operating lever 6 pivotally connected to the vehicle body 5 through the lever 1;
It is connected to 3. The upper end of the valve body 47
1], and the valve stem 37 of the gas return on/off valve 19.
An upper rod 67 is screwed into the lower end of the . The upper rod 67 is fitted into a sliding rod 69 screwed onto the upper end of the lower rod 65 so as to be able to move up and down, and is connected to the lower rod 65 with an appropriate gap.

7'1 is a flow rate 5173 from a colored storage tank (not shown) installed at an above ground fueling station, and a discharge valve 2 via a shutoff valve 75.
A 9-way connecting oil supply path with a flexible joint 77.7 at the tip.
A loading arm 79 using 7, .
It is detachably connected to the connection port 83 provided in the. coupler 8
1. The discharge valves 29 are removably connected to each other, and are each provided with an on-off valve (not shown) inside, and are opened and closed using handles 85 and 87. 89 is tank room 1
A support body 95 equipped with a measuring hole 93 provided on one side of the tank 3, which is a measuring meter equipped with a scale 91 that indicates the level of liquid in the tank 3.
J, the head is inserted into the organ part 99 via the bullet 97,
It is fixed. The scale 91 indicates the amount of liquid including the liquid in the communication passage 27 when the bottom valve 25 is open and the discharge valves 29 and 29 are closed.

In the above embodiment, when loading the liquid content, first connect the coupler 81 at the end of the rope arm 79 to 1! [Connection 1 of volume valve 29] Connect to 83, and open coupler 81 and an on-off valve (not shown) in discharge valve 29 using handles 85 and 87. Further, a gas return hose 24 communicating with the upper part of a storage tank (not shown) is connected to the gas return connection [123]. Next, when the operating lever 63 is operated to open the bottom valve 25, the gas return opening/closing valve 19 is opened in conjunction with the bottom valve 25. In other words, when the operating lever 63 is operated, the arm 55 rotates together with the operating arm 59, the valve stem 49 moves upward, and the valve body 47
rises and the passage 45 is opened. As the valve body 47 rises, the valve 1 hole 35 of the gas return on/off valve 19 is moved upward via the lower rod 65, the upper rod 67, and the valve stem 37)4. t
Open the 3qi passage 33 with L/me. At this point, the shutoff valve 75 is closed, and the liquid is fed into the oil supply pump (not shown) from the storage tank (not shown) into the tank chamber 13 through the oil supply path 71, the rotating arm 79, and the communication path 27. This covers the oil supply.

Evaporated gas generated in the tank chamber 13 during loading is collected in the upper part of the storage tank (indicated by the knee in the figure) via a gas return passage 21 and a gas return hose (not shown).

After the loading work is completed, stop the oil supply from the oil pump (not shown), close the cutoff valve 75, and close the bottom valve 25 by operating the operating handle 63 in the opposite direction. The gas return opening/closing valve 19, which is linked to this, is also closed.

Next, after operating the handles 85 and 87 to close an internal on-off valve (not shown), the coupler 81 is removed from the connection port 83.

When unloading from the tank room 13 to an underground tank at a sales office, etc., connect a hose that communicates with the underground tank to the connection port 83, and connect a hose that communicates with the upper part of the underground F tank to the gas return connection port 23. Connect the gas return valve, listen to the opening/closing valve in the discharge valve 29 with the handle 87, then listen to the bottom valve 25 with the operating lever 63, the gas return opening/closing valve 19 will also be heard, and the tank chamber will open. The liquid inside 13 is unloaded by gravity into an underground tank via a communication path 27 and a hose. In addition, the evaporative gas generated in the underground tank is transferred to the tank chamber 13 via the gas return passage 21.
There is C of b collected at the top of the.

The aforementioned loading and unloading operations can be carried out by an operator standing on the ground.

To measure the liquid in the tank chamber 13, close the discharge valve 29, pull out the measuring meter 89 from the measuring port 03 while listening to the bottom valve 25, and judge the liquid level from the wet state. It is used to read the liquid level.

In this case, the air in the communication passage 27 floats in the liquid and is discharged from the bottom valve 25 into the tank chamber 13 along the sloped upper surface, so that the amount of liquid can be accurately measured. It is.

Since the present invention has the configuration as described in the scope of the invention, even when discharge valves are provided on both sides and loading is carried out by the bottom loading method, the liquid td in the tank chamber can be accurately discharged. It is. That is, in a bottom-loading type tank lorry in which the amount of liquid in the tank chamber is set to .pi.1 using a gauge or the like, discharge valves can be provided on both sides: (b). Further, during discharge, the liquid near the discharge valve on the opposite side can be completely discharged.

Note that FIG. 7 shows a second embodiment, in which the discharge valve 29
This figure shows a configuration in which the position of the bottom valve 25 is moved in the front and back direction from the position of the bottom valve 25, and the upper end is communicated with the substitute valve.
At the lower end of the front-rear pipe 101, a side box '10 is attached.
A communication path 27 is formed by the pipe 101 and the box body 103, and the communication path 27 extends from the discharge valve through the box body 103 and the pipe 101 to the bottom valve. The upper part 1ri1 is provided with an upward slope. FIG. 8 shows the embodiment shown in FIG. 3, in which discharge valves are provided at both ends of a horizontal pipe 107 whose central portion communicates with the lower end of a vertical pipe 105 that communicates with the bottom valve. 1
07 and the upper part of the vertical chamber 105 are communicated with each other through an inclined communication pipe 109 to form a communication passage 27. Figure 9 shows the fourth example of actual fAQ, where pipes 111 and 111 are branched from the bottom valve to both sides at an angle Th.
, a 111 outlet valve is installed at this side end.
A communicating path 27 is formed by communicating the lower portions of both ends of the connecting tube 113 through a communicating tube 113. Figure 10 shows a conventional example 1JI
The center part of the horizontal pipe 117 communicates with the lower end of the vertical pipe 115, which communicates with the bottom valve of J, and discharge valves are provided at both ends of the horizontal pipe 117.

In the above-mentioned embodiment, a tank lorry with a tank mounted on a car is described, but a railer for a tank 1 towed by a car can also be used as a tank truck according to the present invention. It belongs to

It should be noted that the present invention is not limited to the embodiments described above, but can be implemented in other embodiments. 81,
Furthermore, the items 1 to 4 shown in the claims do not limit the technical scope of the present invention.

[Brief explanation of the drawing]

1, 2, and 3 are respectively a plan view, a side view, and a plan view of a tank truck according to the present invention, FIG. 4 is a perspective explanatory view of the main parts, and FIG. 6 is a front view of the device, FIG. 7 is a perspective view of the second embodiment, and FIGS. 8 and 9 are views of the third embodiment. A front view of the fourth embodiment, and FIG. 10 are front views of the conventional example. (Explanation of 1 and 8 representing the main parts of the drawings) 3...Tank 25...Bottom valve 27...・Communication path
29...1!1 Output valve diagram 506 Figure 7 Figure 8 Figure 11 Leading Neyama 1i Niji (Ll:>So (2n!i)
? ■Director General Wakasugi Wainu) Installation, 1'1 Representation 1,1 Request 1111 Sai! i7
-192! 'i 7 B Course 2, Master Inventor J-tank [J-Lee 33, N + Iii [□3) - Representative Ministry Tsukagi
Tsurube 4, agent address 101) Tokyo Minato 1-1 Toranomon 1-1-1ε3 Toki 6, subject of amendment (1) Specification (11.1j7 of detailed description of the invention in 9, content of amendment (1) ) Ming 910 Space 7 @ 101 U1-1, 1 Al
The phrase ``kote (yo'') is supplemented with ``ah! kotsute tma''.

Claims (1)

[Claims] A bottom valve 25 provided at the bottom of the tank 3, and a communication passage 27 that communicates with the discharge valves 29, 29 installed on both sides of the lower part of the tank 3, respectively, are installed. The upper surface is sloped upward from the discharge valves 29 on both sides toward the bottom valve 25. Tank [1-Lee] which features the following.