RU2346761C2 - Cistern inner space washing device, method of its production and cistern equipped with such device - Google Patents

Abstract

FIELD: mechanics.

SUBSTANCE: washing device is designed to wash the cistern inside surfaces, in particular, the automotive cylinder cistern, comprising at least one inlet arranged on the cistern outside. The device incorporates also, at least one feed pipe located partially inside the said cistern at least one spraying head, also, arranged outside the cistern. The said feed pipe is formed by cut lengthwise basic pipe arranged on the cistern inner wall with the cistern inner wall covering the pipe cut. The method of producing the proposed device consists in that the feed and/or protective pipe is formed by the basic cut lengthwise pipe and/or by an additional cut lengthwise pipe. The pipes are produced by lengthwise bending of the section. The cistern features the device made in compliance with the proposed invention.

EFFECT: protection of feed pipe against external effects, proper isolation and easy access to pipe.

8 cl, 7 dwg

Description

A group of inventions relates to flushing the interior of tanks.

More specifically, the group of inventions relates to a flushing device for flushing the interior of a tank, in particular primarily for transporting liquids of a cylindrical automobile tank of the type that contains at least one inlet located inside the tank, usually at the bottom rear, a pipe running along the entire length of the tank, and at least one spray head located inside the tank, designed to spraying inside the tank of flushing fluid introduced through the inlet and delivered by means of a supply pipe.

Flushing devices designed to flush the interior of tanks that already have at least one inlet (3) located outside the tank (2), a supply pipe (4) and at least one spray a head (5) located inside the tank (2). In addition, sometimes there is a lift pipe (6) between the inlet (3) and the feed pipe (4) as well as one or more drop pipes (7) between the feed pipe (4) and each spray head (5).

In the first embodiment of the known device shown in FIG. 1, the supply pipe (4) is located outside the tank body (2), that is, over the outer wall (23) of the tank.

The main disadvantage of this option is that the inlet pipe is not protected from external influences. Since the tank is an automobile tank, the supply pipe can be damaged by stones flying from under the wheels or as a result of an unsuccessful maneuver of the car driver. In addition, in this embodiment, the supply pipe is not protected from the effects of temperature extremes.

In the second embodiment of the known device shown in FIG. 2, the supply pipe (4) is located inside the wall of the tank casing (2) to provide protection from external influences, and more particularly is located in the insulating layer (20) provided between the inner wall (21 ) and the outer wall (23) of the tank.

The main disadvantage of this second option is that if there are problems with the tightness of the washing device, especially at the level of the connection between the inlet pipe (4) and the reduction pipes (7), then the washing liquid will leak into the insulating layer (20) and can lead to its destruction. In addition, the elimination of such problems is associated with significant costs for dismantling the design of the tank.

The objective of the present invention is to remedy these disadvantages of known devices through the use of a supply pipe that is simultaneously protected from external influences, well insulated and has more convenient access.

To solve this problem, in accordance with the present invention, there is provided a supply pipe, which is located, at least in part, inside said tank.

The specified supply pipe is mainly formed by means of a longitudinally cut main pipe mounted on the inner wall of the tank, and the inner wall of the tank closes the cut pipe.

The feed pipe preferably has a partially circular section, however, it can also have a rectangular or oval section. In addition, this section may also not be constant over the entire length of the supply pipe.

The longitudinal edges of the main pipe are predominantly connected by welding to the inner wall of the tank.

The feed pipe is advantageously mounted on the upper edge of the inner wall of the tank.

The flushing device in accordance with the present invention advantageously has a protective tube formed by a secondary longitudinally cut pipe, the cross section of which exceeds the cross section of the supply pipe mounted mainly around said supply pipe.

The specified protective pipe mainly has a partially circular cross section, however, this pipe may also have a rectangular or oval cross section. In addition, this section may also not be constant over the entire length of the protective tube.

The present invention also relates to the creation of a method of manufacturing a washing device in accordance with the present invention, which is characterized in that said supply pipe and / or said protective pipe are respectively formed by a main longitudinally cut pipe or an auxiliary longitudinally cut pipe, said pipes being made for account for longitudinal bending of the profile.

The present invention also relates to the creation of a tank, especially a mainly cylindrical automobile tank, which contains a flushing device in accordance with the present invention, having at least one inlet located outside the tank, a supply pipe and at least one spray head, located inside the tank, and the specified inlet pipe is located at least partially inside the specified tank.

Advantageously, the flushing device in accordance with the present invention is well protected and at the same time has good accessibility in case of need for repairs. In addition, this device can easily be installed directly inside the tank and is more durable than previously known devices.

The temperature differences affecting the washing device in accordance with the present invention are weaker due to the fact that only a small part of the washing device is located outside the tank.

The foregoing and other features of the invention will be more apparent from the following detailed description, given by way of example, not of a restrictive nature and given with reference to the accompanying drawings.

1 schematically shows a cross section of a first embodiment of a known cylindrical tank.

Figure 2 schematically shows a cross-section with a breakout of the second variant of the known cylindrical tanks.

Figure 3 shows a side view of a cylindrical tank in accordance with the present invention.

Figure 4 shows a partial side view with an increase in the rear of the tank shown in figure 3.

Figure 5 shows a partial side view with an increase in the high front of the tank shown in figure 3.

Figure 6 shows a partial top view of the tank shown in figure 3.

In Fig.7 shows a rear view of the tank shown in Fig.3.

The tank (2) in accordance with the present invention, shown in figure 3, has a mainly cylindrical outer wall (23), called a shell, which is made, for example, stainless steel, the longitudinal axis (22) and the inner wall (21), which is also mainly cylindrical and made of stainless steel. The tank is closed at its front and rear ends with corresponding conical concave walls (24, 25).

The tank (2) in accordance with the present invention is preferably an automobile tank intended for the transport of food liquids. In this description, the front and rear directions correspond to the direction of movement of the vehicle.

A flushing device (1) for flushing the interior of a tank (2) in accordance with the present invention is shown in FIGS. 3-7. This device is of a type that includes at least one inlet (3) located outside the tank (2) and designed to suction the washing liquid, a supply pipe (4) running along the tank and designed to deliver the washing liquid, and at least one, but mainly several spray heads (5, 5 ′, 5 ″) located inside the tank (2) through which the washing liquid is sprayed.

In addition, a lift pipe (6) is provided between the inlet (3) and the feed pipe (4) and drop pipes (7) provided between the feed pipe (4) and each spray head (5, 5 ′, 5 ″).

The lower end of the spray head (5) is approximately 50 cm below the inner wall (21), while the lower end of the spray head (5 ') is approximately 10 cm below the inner wall (21). The distance along the axis (22) between the two spray heads (5) is about 2.4 meters, while the distance along the axis (22) between the two spray heads (5 ′) or between one spray head (5 ′) and one spray the head (5 or 5 ″) is about 0.8 meters.

At the rear end of the inlet pipe (4), a spray head (5 ″) can also be provided, which is shown in FIG. 4, oriented not vertically, like spray heads (5, 5 ′), but at an angle of 45 ° relative to the vertical plane.

Spray heads (5, 5 ′, 5 ″) can be provided with balls with holes and swivel balls for distributing jets of flushing fluid inside the tank, in the direction of the inner wall.

The tank (2) has a tank filling system, and also, in the lower part of the rear wall (25), an outlet (drain) hole (26) for emptying the tank by gravity or by suction, which can be seen in Fig.7.

The tank (2) has a total length of about 10 meters and an outer diameter of about 2 meters.

The tank (2) has a capacity of about 29,000 liters.

The tank (2) is mounted on the chassis (27) of a truck (tractor) with several axles. This chassis (27) is formed by several longitudinal and transverse beams.

The slope of the tank (2) relative to the horizontal is about 3.3% to facilitate flow out through the outlet (26).

The inlet (3) is located inside the compartment (30) in the rear of the tank (2), and this compartment can be closed with a cover (32) to protect the specified inlet (3).

The supply pipe (4) is located mainly along its entire length, inside the indicated tank (2), that is, under the inner wall (21) of the tank (2). Only the inlet (3) and the lift pipe (6) are located outside of the tank (2), as shown in FIG. 4. However, it is also possible to provide for the location and lift pipes (6) inside the tank (2).

According to a preferred embodiment of the present invention, said supply pipe (4) is formed by a longitudinally cut main pipe mounted on (pressed against) an inner wall (21) of said tank (2), on an upper edge of said inner wall (21) (on the upper line of the vertical axial longitudinal section of the tank), and the longitudinal edges of the specified main pipe are connected by welding with the specified inner wall (21). Thus, said inner wall (21) covers (above) said cut pipe, and the supply pipe (4) is formed, in its upper part, by means of the inner wall (21), and in its lower part, by means of mainly cut longitudinally pipes. The diameter of this pipe is approximately 60 mm.

In the shown embodiment, the supply pipe (4) is installed on the upper edge of the indicated inner wall (21) of the tank (2), however, it can also be installed on the lateral edge, left or right, of the inner wall (21) of the tank (2). In this case, the orientation of the spray heads (5, 5 ′, 5 ″) should be changed accordingly.

To improve the protection of the supply pipe (4), a protective pipe (4 ′) is provided, formed by means of a secondary longitudinally cut pipe whose diameter exceeds the diameter of the supply pipe (4), which is installed on the inner wall (21) of the indicated tank (2) around the specified the supply pipe (4), mainly coaxial with the specified main pipe, so as to enclose the specified main pipe, and the longitudinal edges of the specified protective pipe (4 ′) are also connected by welding to the specified inner wall (21). The diameter of the protective tube is approximately 90 mm.

In the shown embodiment, both the supply pipe (4) and said protective pipe (4 ′) have a partially circular cross-section, however, it is possible to create a supply pipe (4) and / or protective pipe (4 ′) with a rectangular or oval cross-section. In addition, this cross section may be unstable along the entire length of the supply pipe (4) or the protective pipe (4 ′).

According to a particular embodiment of the present invention, said supply pipe (4) or said protective pipe (4 ′), and preferably both, are made by longitudinally bending a profile or sheet. Due to bending, a mainly circular or angular cross section is obtained.

For introducing flushing fluid into the inlet pipe (4), the front end of the inlet pipe (4) is equipped with a suction system (8), which contains a suction pump. This suction pump is predominantly the same as that used to pump the liquid that is stored inside the tank (2). Thus, the flushing fluid is sucked into the inlet pipe (4) through the inlet (3) and, possibly, through the lift pipe (6), if any, and is pumped into the spray heads (5, 5 ′, 5 ″), possibly through drop pipes (7). After spraying, the flushing fluid is removed through the outlet (26).

Despite the fact that the preferred embodiment of the invention has been described, it is quite clear that specialists and experts in this field may make changes and additions that do not, however, go beyond the scope of the claims. In particular, the invention can be used to create a stationary tank, not intended for its movement, as well as to create a non-cylindrical tank.

Claims (8)

1. A flushing device (1) designed to flush the interior of the tank (2), in particular a cylindrical automobile tank, containing at least one inlet (3) located outside the tank (2), a supply pipe (4), which located at least partially inside said tank (2), and at least one spray head (5) located inside the tank (2), characterized in that the supply pipe (4) is formed by means of a longitudinally cut main pipe mounted on the inside enney wall (21) of the tank (2), wherein the inner wall (21) closes the tank section of said tube (4). 2. The flushing device according to claim 1, characterized in that the supply pipe (4) has a partially circular cross section. 3. The flushing device according to claim 1, characterized in that the longitudinal edges of the main pipe are connected by welding to the inner wall (21) of the tank. 4. A flushing device according to claim 1, characterized in that the supply pipe (4) is located on the upper edge of the inner wall (21) of the tank (2). 5. A flushing device according to claim 1, characterized in that it comprises a protective pipe (4 ′) formed by a secondary longitudinally cut pipe having a larger cross section than the cross section of the supply pipe (4) and mounted mainly around said supply pipe (4 ) 6. The flushing device according to claim 5, characterized in that the protective tube (4 ′) has a partially circular section. 7. A method of manufacturing a washing device according to one of claims 1 to 6, characterized in that said supply pipe (4) and / or said protective pipe (4 ′) are respectively formed from a main longitudinally cut pipe and / or from an auxiliary longitudinally cut pipe moreover, these pipes are made by longitudinal bending of the profile. 8. The tank (2), in particular a cylindrical automobile tank containing a flushing device (1) according to one of claims 1 to 6.

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