JPH03265780A - Fluid transfer device - Google Patents

Abstract

PURPOSE:To transfer fluid at low cost without an electric pump or a vacuum car by arranging one end of a capillary fluid transfer pipe in the fluid to be transferred, arranging the other end above the fluid reserving member isolated from the fluid to be transferred, and then connecting these transfer pipes to the fluid reserving members, respectively. CONSTITUTION:The first capillary fluid transfer pipe 3 is so arranged that one end is soaked in the rainwater 2, fluid to be transferred, at the bottom of an underground pit 1, and the top 6 of the pipe is opened downward at the center of a casing 20, and the first fluid reserving member 7 is fixed, below the top 6, inside the casing 20. Next, the second capillary fluid transfer pipe 8 whose one end is laid in the member 7 is provided, and the top 11 of the pipe is opened above the second fluid reserving member 12. Thereupon, the rainwater 2 inside the pit 1 ascends by capillary phenomena from the capillary member 4 at the bottom of the pipe 3, and drops into the member 7 and stands there. Next, the standing fluid reaches the member 12 successively by a pipe 8, and the fluid ascends in order by capillary phenomena is transferred to the objective transfer place through the final capillary fluid transfer pipe 13.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a fluid transfer device that utilizes capillary action, and more particularly to a fluid transfer device that can arbitrarily adjust the transfer distance in the anti-gravity direction.

For example, in various plants and petrochemical complex factories, steam, air, and water piping is often installed underground or on the ground surface, and in such cases, pits are installed underground where they intersect with passageways. It is designed so that the piping mentioned above passes through it. However, since underground pits are located on low ground, rainwater accumulates therein, corroding the various pipes mentioned above, and cooling the steam pipes to generate drainage, which has an adverse effect on steam-using equipment.

<Prior Art> Conventionally, rainwater was sucked out by operating a vacuum car periodically or when rainwater accumulated, or by suction and removal by a mobile electric pump.

<Problems to be solved by the present invention> Vacuum cars and electric pumps have the problem of high costs, and electric pumps are especially expensive in petrochemical plants, etc., where materials with a high possibility of explosion or combustion are handled. In many cases, explosion-proof electric pumps must be used, and there is a problem in that explosion-proof electric pumps become even more expensive.

Therefore, the technical problem of the present invention is to obtain a device for transferring fluid at low cost without using an electric pump or a vacuum car.

Means for Solving the Problems> The technical means of the present invention taken to solve the above problems consists of a large number of capillary members and a water-impermeable material that covers areas other than both ends of the large number of capillary members. A capillary fluid transfer pipe is formed with the exterior material, one end of the capillary fluid transfer pipe is disposed within the fluid to be transferred, and the other end is disposed above a fluid reservoir member provided isolated from the fluid to be transferred. , the capillary fluid transfer pipe and the fluid reservoir member are connected to each other.

<Function> The fluid to be transported is transferred by capillary action from one end of the capillary fluid transfer pipe placed within the fluid to be transported. The transferred fluid drips from the other end of the capillary fluid transfer pipe into the fluid reservoir member. The fluid that drips and accumulates is transferred by the next connected capillary fluid transfer pipe, reaches the next fluid reservoir member, and drips. The fluid is transferred by repeating the above transfer.

<Example> An example showing a specific example of the above technical means will be described. (See Figure 1) A first capillary fluid transfer pipe 3 is placed with one end immersed in rainwater 2, which is the fluid to be transferred, at the bottom of the underground pit 1. The capillary fluid transfer pipe 3 is formed by covering a number of capillary members 4 with a water-impermeable sheathing material 5. The parts that will be immersed in rainwater are not covered with the exterior material 5. The capillary member 4 may be, for example, a porous material having open cells, a hollow fiber, or a fibrous material such as acetate fiber. The exterior material 5 may be made of synthetic resin or base rubber, or may be made of metal such as aluminum or stainless steel. The first capillary fluid transfer pipe 3 has an inverted d-shaped shape;
It is installed approximately vertically within the casing 20. The upper end 6 of the first capillary fluid transfer pipe 3 opens downwardly in the center of the casing 20 . A cylindrical first fluid reservoir member 7 is fixedly attached within the casing 20 below the upper end portion 6. The upper end portion 6 is spaced apart so as not to enter the fluid reservoir member 7. Next, a second capillary fluid transfer pipe 8 is provided so that one end thereof enters into the first fluid reservoir member 7. Similarly to the first capillary fluid transfer pipe 3, the second capillary fluid transfer pipe 8 also has a large number of capillary members 9 attached to the exterior material 1.
0, and the upper and lower ends are not covered with the exterior material 10.

Similarly, the upper end 11 of the second capillary fluid transfer pipe 8 is opened above the second fluid reservoir member 12 .

In this manner, the capillary fluid transfer pipe and the fluid reservoir member are sequentially connected depending on the distance to which the fluid is to be transferred.

The end 15 of the upper capillary fluid transfer pipe 13 connects with the final fluid transfer point.

Rainwater 2 in the underground pit 1 rises from the capillary member 4 at the lower end of the first capillary fluid transfer pipe 3 by capillary action, drips into the first fluid reservoir member 7, and accumulates therein. The accumulated fluid then passes through the second capillary fluid transfer pipe 8 to the second fluid reservoir member]2. The fluid that has successively risen due to capillary action is transferred to the intended transfer location via the final capillary fluid transfer pipe 13.

<Effects of the Invention> According to the present invention, rainwater in a pit can be removed at low cost without using an electric pump or a vacuum car.

The distance that fluid is transported by capillary action is inversely proportional to the radius of the capillary tube. Therefore, there is a limit to the distance that a single capillary tube can transport. According to the present invention, by connecting the capillary fluid transfer pipe and the fluid reservoir member, the transfer distance can be adjusted as desired.

[Brief explanation of drawings]

FIG. 1 is a partially sectional configuration diagram showing the configuration of an embodiment of the fluid transfer device of the present invention. 1: Underground pit 2: Transferred fluid 3.8.13:
Capillary fluid transfer pipe 4.9: Capillary member 5.10: Exterior material 7.12: Fluid reservoir member

Claims (1)

[Claims] 1. A capillary fluid transfer pipe is formed by a large number of capillary members and an impermeable exterior material that covers areas other than both ends of the large number of capillary members, and one end of the capillary fluid transfer pipe is inserted into the fluid to be transferred. A fluid transfer device, wherein the capillary fluid transfer pipe and the fluid reservoir member are connected to each other, the other end of which is disposed above a fluid reservoir member that is arranged to be separated from the fluid to be transferred.