CORIOLIS TYPE FLOWMETER

TECHNICAL FIELD

The invention relates to a Coriolis type flowmeter used to measure the mass flow of the fluids.

PRIOR ART

The Coriolis type flowmeter is used in the art to measure the mass flow of the fluids. For example, it can be used to measure the amount of fluid passing during LPG filling at fuel stations. The Coriolis type flowmeter has a first pipe and a second pipe extending parallel to each other between an inlet pipe and an outlet pipe. The inlet pipe is divided into two parts, i.e., the first pipe and the second pipe, in a separation zone.

The pressure losses that may occur in the Coriolis type flowmeter cause the devices, such as pumps/compressors, etc. that pressurize the fluid given to the process, to consume more energy. In detailed description, when the fluid comes from the inlet pipe and hits the separation zone, a regional pressure increase occurs in the separation zone and inlet pipe. Therefore, a pressure difference occurs between the inlet pipe and the outlet pipe. This causes the undesirable excessive energy consumption.

As a result, all the above-mentioned problems have made it necessary to realize a novelty in the relevant technical field.

SUMMARY OF THE INVENTION

The present invention relates to a Coriolis type flowmeter to eliminate the above- mentioned disadvantages and bring the new advantages to the relevant technical field.

The object of the invention is to provide a Coriolis type flowmeter with the minimized pressure loss. In order to achieve all the objects mentioned above and those which will be apparent from the following detailed description, the present invention relates to a Coriolis type flowmeter having a first pipe and a second pipe extending parallel to each other and extending between an inlet zone having an inlet pipe and an outlet zone having an outlet pipe. Accordingly, a separation angle of between 40 and 60 degrees is provided, which is defined between the part extending towards the first pipe and the part extending towards the second pipe of a separation zone where the inlet pipe joins the first pipe and the second pipe. Thus, a pressure increase in the separation zone is prevented. In this way, the pressure difference between the inlet pipe and the outlet pipe is minimized.

In a possible embodiment of the invention, the separation angle is 40 degrees.

BRIEF DESCRIPTION OF THE FIGURES

Fig. 1 shows the representative front, top and side views of the Coriolis type flowmeter according to the invention.

Fig. 2 shows a representative cross-sectional view of the inlet zone of the Coriolis type flowmeter according to the invention.

Fig. 3a shows the analysis of the pressure distributions in the case of a separation angle of 40 degrees in the Coriolis type flowmeter according to the invention.

Fig. 3b shows the analysis of the pressure distributions in the case of a separation angle of 50 degrees in the Coriolis type flowmeter according to the invention.

Fig. 3c shows the analysis of the pressure distributions in the case of a separation angle of 60 degrees in the Coriolis type flowmeter according to the invention.

Fig. 3d shows the analysis of the pressure distributions in the case of a separation angle of 70 degrees in the Coriolis type flowmeter according to the invention.

DETAILED DESCRIPTION OF THE INVENTION In this detailed description, the Coriolis type flowmeter (10) according to the invention is only described with the examples without any limiting effect for a better understanding of the subject.

As can be seen in Fig. 1 , the Coriolis type flowmeter (10) according to the invention essentially has a first pipe (13a) and a second pipe (13b) located parallel to each other and having a U-like form, provided between an inlet zone (11 ) and an outlet zone (18). The Coriolis type flowmeter (10) according to the invention is provided symmetrically with respect to an axis of symmetry (a) passing through the middle of the inlet zone (11 ) and outlet zone (18).

In detailed description, said inlet zone (11) has an inlet pipe (111) provided with an inlet diameter (D1). Said inlet pipe (111 ) is divided into two parts, i.e., the first pipe (13a) and the second pipe (13b), by tapering in a separation zone (12). A separation angle (a) is defined between the first pipe (13a) and the second pipe (13b). Subsequently, the first pipe (13a) and the second pipe (13b) extend parallel to each other. The distance between the center axes of the first pipe (13a) and the second pipe (13b) is defined as an intermediate clearance (L4).

Said outlet zone (18) also comprises an outlet pipe (181) with an outlet diameter (D2) and is provided symmetrically with the inlet zone (11) with respect to the axis of symmetry (a). In a possible embodiment of the invention, the inlet diameter (D1 ) and outlet diameter (D2) are equal to each other.

The first pipe (13a) and the second pipe (13b), located between the inlet zone (11) and the outlet zone (18), are formed symmetrically with respect to the axis of symmetry.

The first pipe (13a) and the second pipe (13b) each have an upper bending zone (14) near the inlet zone (11) and the outlet zone (18). Said upper bending zone (14) is provided with an upper bending radius (r1 ). The upper bending zone (14) is essentially provided in the form of a quarter circle.

There is a vertical pipe (15) following the upper bending zones (14). Said vertical pipe (15) is provided with a vertical pipe length (L2). There is a lower bending zone (16) at the end of the vertical pipe (15). The lower bending zone (16) has a lower bending radius (r2). The lower bending zone (16) is essentially provided in the form of a quarter circle. Due to the lower bending zone (16), the first pipe (13a) and the second pipe (13b) are oriented towards the axis of symmetry (a).

Following the lower bending zones (16), there is a horizontal pipe (17) extending between the lower bending zones (16). Said horizontal pipe (17) is provided with a horizontal pipe length (L3). Additionally, the axis of symmetry (a) passes through the middle of the horizontal pipe (17).

Fig. 2 shows a representative detail view of the inlet zone (11). Accordingly, the inlet pipe (111) first tapers with a tapering angle (P) and then is divided into two parts, i.e., the first pipe (13a) and the second pipe (13b). The first pipe (13a) and the second pipe (13b) move away from each other with a separation angle (a). When the distance between the central axes of the first pipe (13a) and the second pipe (13b) reaches an intermediate clearance (L4) value, the first pipe (13a) and the second pipe (13b) become parallel to each other.

In the Coriolis type flowmeter (10) according to the invention, said separation angle (a) is provided between 40 and 60 degrees. Thus, the pressure difference between the inlet zone (11) and the outlet zone (18) is minimized.

In other words, when the fluid comes from the inlet pipe (111) and hits the separation zone (12), a pressure increase occurs in the separation zone (12) and inlet pipe (111). Therefore, a pressure difference occurs between the inlet pipe (111 ) and the outlet pipe (181 ).

Figs. 3a, 3b, 3c and 3d show the pressure distributions at 40-50-60 and 70 degrees of the separation angle (a).

As can be seen from Fig. 4d, when the separation angle (a) is selected as 70 degrees, the pressure is high on the inlet pipe (111) side. In Figs. 3c, 3b, 3a, the pressure in the inlet pipe decreases as the separation angle (a) decreases. As can be seen from Fig. 3a, when the separation angle (a) is 40 degrees, it reaches the optimum value and the pressure increase in the separation zone (12) is minimized. Accordingly, the pressure increase in the inlet pipe (111) is minimized and therefore the pressure difference between the inlet pipe (111) and the outlet pipe (181 ) is reduced.

The scope of protection of the invention is set out in the appended claims and shall in no way be limited to what is described in this detailed description for illustrative purposes. It is clear that a person skilled in the art can produce similar embodiments in the light of what is explained above, without deviating from the main theme of the invention.

REFERENCE NUMBERS GIVEN IN THE FIGURES

10 Coriolis type flowmeter

11 Inlet zone

111 Inlet pipe

12 Separation zone

13a First pipe

13b Second pipe

14 Upper bending zone

15 Vertical pipe

16 Lower bending zone

17 Horizontal pipe

18 Outlet zone

181 Outlet pipe

L1 Inlet zone length a Separation angle P Tapering angle r1 Upper bending radius r2 Lower bending radius

L2 Vertical pipe length

L3 Horizontal pipe length a Axis of symmetry

L4 Intermediate clearance

D1 Inlet diameter

D2 Outlet diameter