RU177635U1 - WAGON TANK - Google Patents

Abstract

This utility model relates to railway transport, and specifically to freight cars, such as a tank car for transportation of various cargoes, including liquid cargoes. A tank car is proposed, the bottom of which has a torospherical shape and parameters satisfying the condition: 0.08s + 0.07≤R / r≤0.37s-1.03, where s is the thickness of the bottom, expressed in mm and in the range from 8 to 32 mm, R is the radius of the spherical part of the bottom, r is the radius of the toroidal part of the bottom, 0.08 and 0.37 are the reduction factors, mm. This useful model ensures the achievement of the technical result, which consists in increasing the volume of the boiler tank car while maintaining the required strength, mass and load capacity. 4 ill.

Description

Technical field

This utility model relates to railway transport, and specifically to tank wagons for the transportation of various cargoes, including liquid cargoes.

State of the art

In accordance with GOST R 51659-2000, the tank consists of a tank (boiler) with fittings, a boiler attached to the platform, a platform equipped with trolleys, automatic couplers, an automatic brake, a parking brake, and additional devices.

The tank capacity (boiler), as a rule, is a horizontal cylindrical tank, closed from the ends by bottoms.

An example of such a tank car is model 15-9872 of a tank car for transportation of liquefied hydrocarbons, which is also the closest analogue of the proposed utility model.

The main technical characteristics of the tank car model 15-9872 are shown below in table 1.

In the art, these parameters of the tank car are important because they affect its technical and economic indicators.

In particular, despite the fact that the design of existing tank cars makes it possible to obtain a large boiler volume for placing cargo in it, the need to create tank cars to enable it to accommodate a larger volume of cargo still exists.

Thus, the objective of this utility model is to create a tank car that provides the most efficient cargo transportation.

Utility Model Disclosure

This problem is solved by the proposed utility model due to the creation of a tank car, the bottom of which has a torospherical shape and parameters that satisfy the condition:

0.08s ₁ + 0.07≤R / r ₁ ≤0.37s ₁ -1.03,

where s ₁ is the thickness of the bottom, expressed in mm (from 8 to 32 mm),

R is the radius of the spherical part of the bottom,

r ₁ is the radius of the toroidal part of the bottom,

0.08 and 0.37 are the reduction factors, mm ^-1 .

This useful model ensures the achievement of a technical result, which consists in increasing the volume of the boiler of the tank car while maintaining the strength of the boiler, as well as while maintaining the values of the parameters of the thickness of the bottom, the carrying capacity of the tank car and the mass of the container (mass of the boiler) unchanged.

It should be noted that in all materials of this application, including in the description and formula, an indication of a range of values of quantities means covering with such a range of values of a corresponding quantity within this range, including boundary values.

In one of the preferred embodiments of the utility model, the tank car has a carrying capacity of 52 tons, boiler weight 38 tons, boiler volume 84.9 m ³ and boiler length 11.0 m.

In preferred embodiments of the utility model, an increase in the volume of the boiler of the tank car is also provided while maintaining the strength of the boiler, and also while maintaining the values of the parameters, the thickness of the bottom, the carrying capacity of the tank car and the tare (mass of the boiler) are unchanged.

Brief Description of the Drawings

In FIG. 1 shows a schematic view of the torospherical bottom of a tank car, according to one embodiment of the present utility model.

In FIG. 2 shows a schematic graph of the dependence of the mass of the boiler on the thickness of the bottom of the tank car, according to one embodiment of the present utility model.

In FIG. 3 shows a schematic graph of the dependence of carrying capacity on the thickness of the bottom of the tank car, according to one embodiment of the present utility model.

In FIG. 4 is a schematic diagram of the relationship between the mass of the boiler (M _boiler ) and the useful volume of the boiler (V _boiler ) versus the ratio of the radius of the spherical part of the bottom (R) to the radius of the toroidal part of the bottom (r ₁ ).

Utility Model Implementation

In accordance with this utility model, the tank car can be performed in any suitable way to obtain the required structure for the transportation of any suitable cargo without restriction. In various embodiments, the tank may consist of a tank (boiler) with fittings, a boiler attached to the platform, a platform equipped with trolleys, automatic couplers, an automatic brake, a parking brake, and additional devices, the appearance and presence of which are determined by the specific implementation of the tank car to a specialist. The tank capacity (boiler) is preferably a horizontal cylindrical tank closed at the ends by bottoms.

In FIG. 1 shows a schematic view of the torospherical bottom of a tank car, according to one embodiment of the present utility model.

The torospherical bottom of the tank car is characterized by the following main technical parameters: inner diameter D, outer diameter D ₁ , flanging length h ₁ , radius R of the spherical part of the bottom, radius r _{1 of the} toroidal part of the bottom, thickness s _{1 of the} bottom, height H of the bottom.

In accordance with this utility model, the indicated parameters D, D ₁ , h ₁ , H can have any suitable value depending on the requirements for a tank car.

The value of the thickness of the bottom s ₁ of the tank car in various embodiments of the present utility model can be selected from a range of 8-32 mm.

At thickness values less than 8 mm, an undesirable loss of boiler stability occurs. Moreover, as can be seen from FIG. 2, when the thickness values are more than 32 mm, a sharp increase in the mass of the boiler occurs, which also leads to a sharp decrease in the carrying capacity of the tank car, as shown in FIG. 3.

To ensure an increase in the useful volume of the boiler, a real tank model proposed a tank car, the bottom of which has a torospherical shape and parameters that satisfy the condition

0.08s ₁ + 0.07≤R / r ₁ ≤0.37s ₁ -1.03,

where s ₁ is the thickness of the bottom, expressed in mm and ranging from 8 to 32 mm,

R is the radius of the spherical part of the bottom,

r ₁ is the radius of the toroidal part of the bottom,

0.08 and 0.37 are the reduction factors, mm ^-1 .

It should also be noted that the thickness of the bottom, selected in the range from 8 to 32 mm, provides in the present utility model the optimal ratio of the mass of the boiler to its useful volume, as shown in FIG. 4, which does not lead to a sharp increase in this ratio, which negatively affects the efficiency of cargo transportation.

The value of the ratio of the mass of the boiler to the usable volume equal to 0.45 t / m ³ , in FIG. 4 is provided as a non-restrictive example of a true utility model.

Thus, as follows from the indicated condition and FIG. 4, for edge values of the bottom thickness (8 mm and 32 mm), the ratio of the radius of the toroidal part of the bottom to the radius of the spherical part of the bottom is preferably in the range from 0.71 to 1.93 (thickness of the bottom is 8 mm) and from 2.63 to 10 81 (bottom thickness 32 mm).

Example

As an example, a tank car according to the present utility model will be described having a torospherical bottom with a thickness s ₁ = 22 mm, a boiler length of 11.0 m, a radius of the toroidal part of the bottom r ₁ = 0.7 m and a radius of the spherical part of the bottom R = 2.6 m.

According to the present utility model, for this example of a tank car, the ratio R / r1 = 3.71 obtained from the above condition is valid: 1.83≤R / r1≤7.11.

However, it should be noted that for this example of the tank car according to the present utility model, and similarly for any other variants of the tank car according to the present utility model, any R / r1 ratio within the range obtained from the indicated condition can be selected.

As mentioned in the section "Prior art", the tank car according to model 15-9872 has a bottom with a thickness of 22 mm, a load capacity of 52 tons, a tare weight of 38 tons, a boiler volume of 83.9 m ³ , a boiler length of 11.0 m, internal boiler diameter 3.2 m.

Due to the use of a torospherical bottom in the tank car with parameters satisfying the specified condition according to the present utility model, an increase in the boiler useful volume by 1 m ^{3 is} obtained compared to the known tank car while maintaining the values of the bottom thickness, tank car loading capacity and tare weight (boiler mass) unchanged.

Thus, for this example, the ratio of the mass of the boiler (38 t) to its volume (84.9 m ³ ) is 0.45 t / m ³ .

Since the use of this condition in accordance with this utility model ensures that the thickness of the bottom, the carrying capacity of the tank car and the weight of the boiler are maintained, the necessary conditions for the strength of the tank car are also preserved and satisfy the requirements for them depending on the design requirements.

It should be noted that the described tank car is only one of the preferred embodiments of the utility model. For a person skilled in the art it is obvious that changes and modifications can be made to the present utility model without deviating from the volume of the utility model defined by the utility model formula described below.

Claims (6)

Tank car, the bottom of which is made of a torospherical shape and has parameters that satisfy the condition: 0.08s ₁ + 0.07≤R / r ₁ ≤0.37s ₁ -1.03, where s ₁ is the thickness of the bottom, expressed in mm and ranging from 8 to 32 mm, R is the radius of the spherical part of the bottom, r ₁ is the radius of the toroidal part of the bottom, 0.08 and 0.37 are the reduction factors, mm ^-1 .

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