JP3068243U - Multi valve for bulk storage tank - Google Patents

Abstract

(57) Abstract: A multi-valve for a bulk storage tank for storing a liquid such as LP gas. SOLUTION: In a multi-valve (21) attached to a bulk storage tank (1) containing a liquid, a valve body (2) is provided.
A liquid extraction pipe (38) formed of a synthetic rubber material or a synthetic resin material having flexibility is connected to the lower end of the flow path of the liquid extraction valve (35) provided in 2). A communication passage (41) provided in the axial direction at the lower end of the liquid extraction pipe (38).
And one or more suction passages (4
3) is provided and a heavy-weight tip intake portion (40) is attached. A magnet is attached to the lower surface of the liquid outlet.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an improvement of a multi-valve capable of efficiently extracting a liquid such as liquefied petroleum gas (LPG) from a bulk storage tank.

[0002]

[Prior art]

 Conventionally, an opening 2 provided in a bulk storage tank 1 for storing a liquid fuel such as liquefied petroleum gas (LPG) is provided with a liquid extraction valve 4 having a metal pipe 3 for liquid extraction attached to a lower portion thereof. The liquid in the bulk storage tank is taken out by operating the operation piece 5 of the liquid taking-out valve. In the case of a valve having one function as described above, even if a long metal pipe 3 is provided below the valve, the metal pipe is inserted through the narrow opening 2 provided in the bulk storage tank. There is no difficulty in the installation work because it comes out.

[0003]

[Problems to be solved by the invention]

 However, as shown in FIGS. 2 and 3, for example, a multi-valve 21 having at least a plurality of functions such as liquid intake, gas extraction, and liquid extraction is provided in an inflow passage 27 connected to the liquid intake valve 25. An overfilling prevention valve 29 having a function of preventing overfilling is provided below the connected connecting cylinder 28, and a float 29a, which is an operating piece of the overfilling prevention valve, is provided so as to protrude in the radial direction. I have.

For this reason, as shown in FIG. 2, when a long metal pipe 3 as shown in FIG. 1 is provided below a multi-valve 21 having a float 29 a of an overfill prevention valve, a bulk storage tank is required. It was almost impossible to mount the camera through a narrow space such as the opening 2.

In the present invention, a long liquid extraction pipe is formed of a flexible member, and when the float is inserted into the opening of the bulk storage tank, the liquid extraction pipe is bent and deformed arbitrarily. It is intended to be easily attached by passing through.

[0006]

[Means for Solving the Problems]

 According to a first aspect of the present invention, there is provided a multi-valve having a plurality of functions such as liquid intake, gas extraction, and liquid extraction attached to a bulk storage tank containing a liquid, as a means for solving the above-mentioned problem. Connected to the lower part of the flow path of the liquid extraction valve provided on the main body is a flexible liquid extraction pipe with a length whose lower end is in contact with the inner bottom surface of the bulk storage tank and made of synthetic rubber or synthetic resin. It is characterized by becoming.

[0007] The liquid extraction pipe according to the second aspect of the present invention is provided with one or two or more suction paths 43 in the radial direction to communicate with a lower part of a communication path provided in an axial direction at a lower end thereof, and to reduce the weight. It is characterized by attaching the liquid intake section 40 having the same.

[0008] In the third aspect of the present invention, the lower end of the communication passage provided at the lower end in the axial direction is opened at the bottom surface, and communicates with the lower portion of the communication passage to radially extend one or two. It is characterized in that the lower surfaces of the above suction paths are opened to the outside, respectively, and a heavy liquid intake section is attached.

The fourth aspect of the present invention is characterized in that the liquid intake portion is provided with a magnet in a recess provided at substantially the entire bottom surface or at the center.

[0010] The liquid extraction hose having flexibility as described above, together with the float of the overfilling prevention valve provided in the multi-function multi-valve having the liquid extraction valve, can be arbitrarily deformed to obtain the bulk. It can be attached by inserting the opening of the storage tank. In addition, the provision of a heavy liquid intake portion at the lower end of the liquid extraction hose prevents the lower end portion of the liquid intake portion from floating when the liquid is taken out, so that the liquid can be efficiently taken out. .

[0011]

[Embodiment of the invention]

 An embodiment according to the present invention will be described with reference to the drawings. For example, a multi-unit attached to a side surface or a top opening 2 of a bulk storage tank 1 for storing a liquid composed of a liquid fuel such as gasoline or liquefied petroleum gas (LPG). The valve 21 has a plurality of functions by combining a liquid intake valve 25, an overfill prevention valve 29, a gas extraction valve (not shown), a liquid extraction valve 35, and a safety valve (not shown) in the valve body 22. It is formed in.

At the lower part of the valve body 22, there is provided a mounting board 23 to be mounted on the opening 2 of the bulk storage tank. The mounting board 23 is sealed and fixed with bolts 24 using mounting holes provided at four corners of the mounting board. is there.

An opening / closing handle 26 is mounted above the liquid intake valve 25 provided at the center of the valve body 22, and a lower end of a connecting cylinder 28 connected to an intake passage 27 provided below the liquid intake valve. An overfilling prevention valve 29 is attached to the valve, and a float 29a provided in the overfilling prevention valve opens and closes the valve portion by a vertical movement of the liquid level.

Reference numeral 35 denotes a liquid discharge valve provided on one side of the valve body 22. A flexible liquid discharge pipe 38 is connected to a lower end of a flow path 37 connected to a valve element (not shown) of the liquid discharge valve. is there. The liquid extraction pipe 38 is made of a flexible member such as a synthetic rubber material or a synthetic resin material and has flexibility and oil resistance, and is preferably a pipe made of nitrile rubber (NBR). That is, the length of the liquid extraction pipe 38 may be adjusted according to the depth of each bulk storage tank 1 or may be longer.

A second embodiment according to the present invention will be described. A first liquid inlet 40 having a weight located on the inner bottom surface of the bulk storage tank 1 is connected to a lower end of the liquid outlet pipe 38. The liquid extraction pipe 38 can be maintained in a vertical direction.

The first liquid intake section 40 is formed of a member having a weight, and may be made of metal or resin, but is preferably made of metal. The liquid extraction pipe is connected to the upper end of a communication path 41 provided on the upper surface of the liquid intake section 40 in the axial direction. For example, the nipple portion 42 is provided integrally or separately from the liquid take-out portion, and one or more suction passages 43 are provided below the communication passage 41 in radial communication with the communication passage. Since the liquid take-in portion 40 attached to the lower end of the liquid take-out pipe 38 is heavy, it is prevented from floating in an unspecified direction by the suction force of the liquid generated at the time of taking out the liquid and is kept in the vertical direction. I can do it.

In addition, since the first liquid intake section 40 is attached to the lower end of the liquid extraction pipe 38, the amount of liquid in the tank decreases during liquid extraction, and the liquid pressure resistance of the liquid extraction pipe 38 decreases. Since the phenomenon that the tip (lower end) of the liquid extraction pipe swings like a dance can be prevented, it is possible to prevent damage to other devices installed in the bulk tank 1.

A third embodiment according to the present invention will be described. The second liquid intake section 50 shown in FIG. 5 is formed of the same member as the first liquid intake section 40, and is formed in the axial direction. A nipple portion 52 for connecting one end of the liquid extraction pipe 38 is provided integrally or separately at the upper end of the communication passage 51 provided in the hopper. The lower end of the communication passage 51 is opened at the bottom surface, and one or more suction passages 53 are formed to communicate with each other in the radial direction, have a semicircular cross section, and open the lower end to the outside. .

Since the suction path 53 formed in a semicircular shape is provided on the bottom surface of the second liquid intake section 50, the suction path 53 directly opens to a portion in contact with the inner bottom surface of the bulk storage tank 1. There is an advantage that the liquid near the inner bottom surface can be taken out without waste.

The third liquid intake section 60 shown in FIGS. 6 and 7 is formed of the same member as the first liquid intake section 40, and is provided at the upper end of a communication passage 61 provided in the axial direction. A nipple portion 62 connected to the pipe 38 is provided integrally or separately, and one or more suction passages 63 communicating with the communication passage in a radial direction are provided below the communication passage 61.

A magnet 66 is attached to a concave portion 65 provided on the entire bottom surface or the central portion of the third liquid intake portion 60. The magnet 66 may not only be accommodated in the recess 65, but may be attached to the entire bottom surface of the liquid intake portion or to several places on the bottom surface.

Since the magnet 66 is provided on the bottom surface of the liquid intake unit 60, even if an external impact or vibration is applied to the bulk storage 1 due to an earthquake or the like, the liquid intake unit not only has its own weight but also the magnet 66 Due to the suction action, it is fixed to the inner bottom surface of the storage tank 1 by suction. Therefore, even if an external shock or vibration is applied, the liquid intake section 60 does not move, so that the liquid in the tank can be efficiently extracted in a short time.

Instead of the nipples provided in the first, second, and third liquid intakes 40, 50, and 60, respectively, a connection tube is attached to the upper end of the communication path, or connected to the suction pipe 38 by other connection means. Of course, it can be fixed.

[0024]

[Effect of the invention]

 In the present invention, a flexible liquid extraction pipe is attached at the lower end of the liquid extraction pipe connected to the liquid extraction valve that constitutes a multi-valve that is attached to a bulk storage tank that stores liquid such as high-pressure liquefied gas. By arbitrarily deforming, the liquid can be easily taken out by inserting through the opening of the bulk storage tank.

Further, by attaching a heavy liquid intake section to the lower end of the flexible liquid extraction pipe, it is possible to prevent idle movement of the suction pipe during liquid suction and to extract the liquid from the bulk storage tank. In addition, it is possible to prevent breakage of various devices disposed in the tank due to the floating of the suction pipe, and to prevent the liquid from being taken out.

[0026] Furthermore, a suction path having a lower surface opened to the outside is provided on the bottom surface of the liquid intake portion in a radial direction, so that the liquid in the storage tank, particularly, the liquid located on the inner bottom surface is also effectively taken out. be able to.

Furthermore, since a magnet is attached to the bottom surface of the liquid intake section and fixed by suction, the liquid intake section does not move even if an impact is applied from the outside, so that the liquid extraction pipe is pulled and the connection portion falls off. Since there is no risk of twisting or twisting, the liquid in the storage tank can be taken out efficiently. Further, it is possible to prevent various devices disposed in the storage tank from being damaged due to the floating of the liquid extraction pipe.

[Brief description of the drawings]

FIG. 1 is a partially broken explanatory view showing a state in which a liquid discharge valve is attached to an opening of a bulk storage tank.

FIG. 2 is a partially omitted front view showing the first embodiment of the multi-valve for a bulk storage tank according to the present invention.

FIG. 3 is a cross-sectional view of a state in which a multi-valve for a bulk storage tank is attached to an opening of the bulk storage tank.

FIG. 4 is a partially omitted sectional view showing a second embodiment of the multi-valve for a bulk storage tank according to the present invention.

FIG. 5 is an enlarged longitudinal sectional view of a main part showing a second liquid intake section connected to the tip of a liquid extraction pipe.

FIG. 6 is an enlarged vertical sectional view of a main part showing a third liquid intake section connected to the tip of a liquid extraction pipe.

FIG. 7 is a bottom view of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bulk storage tank 21 Multi-valve 22 Valve body 35 Liquid extraction valve 37 Outflow path 38 Suction pipe 40 First liquid intake section 41 Communication path 43 Suction path 50 Second liquid intake section 51 Communication path 53 Suction path 60 Third liquid Intake part 61 Communication path 63 Suction path 65 Recess 66 Magnet

Claims (4)

[Utility model registration claims] 1. A multi-valve (21) having a plurality of functions such as liquid intake, gas extraction, and liquid extraction attached to a bulk storage tank (1) for containing a liquid, the valve being provided on a valve body (22) of the multi-valve. At the lower part of the flow path (37) of the liquid extraction valve (35), a flexible liquid extraction pipe (38) having a length whose lower end is in contact with the fixed surface of the bulk storage tank and formed of a synthetic rubber material or a synthetic resin material. ) Is connected to the multi-valve for bulk storage tanks. 2. The liquid extraction pipe (38) is provided with one or more suction paths (43) in the radial direction by communicating with a lower part of a communication path (41) provided in an axial direction at a lower end thereof. 2. The multi-valve for a bulk storage tank according to claim 1, wherein a liquid intake part (40) having a weight is attached. 3. The liquid discharge pipe (38) has a lower end formed with a lower end of a communication path (51) provided in an axial direction at a lower end thereof, and communicates with a lower part of the communication path to radially extend one or more. The multi-valve for a bulk storage tank according to claim 2, wherein the lower surfaces of the two or more suction paths (53) are respectively opened to the outside and a heavy liquid intake portion (50) is attached. 4. The bulk storage tank according to claim 2, wherein the liquid intake portion is formed by mounting a magnet (66) in a concave portion (65) provided in substantially the entire bottom surface or a central portion. For multi valve.