RU145395U1 - DEVICE FOR MEASURING THE SPEED OF A FLUID IN A PIPELINE - Google Patents

Abstract

1. A device for measuring the velocity of a fluid in a pipeline, comprising a measuring insert, equipped with end pipes with flanges fixed to them with holes for mounting the insert in the pipeline, between which there is a measuring section made in the form of a measuring section of the pipeline of a dielectric composite material, the ends of which mounted on the indicated pipes, a compartment for accommodating equipment for measuring the speed of the fluid through the measuring section, covering the measuring sec ju, located in the said compartment measuring equipment, including at least an ultrasonic fluid velocity meter through the measuring section, a power supply and means for processing the received data, and a casing for protecting the measuring equipment in the compartment from external influences, while the casing has two side walls that limit the compartment from the ends, an external protective screen located between the end walls, and fasteners connecting these side walls to each other. 2. The device for measuring speed according to claim 1, in which one side wall is made integrally with one of the flanges, and the other side wall is connected to the second flange with the possibility of rotation relative to this flange. The device for measuring speed according to claim 1, in which the external protective shield is made of metal. The device for measuring speed according to claim 1, wherein the external protective shield is made of a reinforced dielectric composite material. The device for measuring speed according to claim 1, in which the external protective screen is made of carbon fiber.

Description

Technical field

The utility model relates to means for measuring the velocity of a fluid transported through a pipeline, primarily for measuring the flow of crude oil, condensate, natural gases in process pipelines at oil production sites, liquefied gases, etc.

State of the art

A mortise section of an ultrasonic flow meter is known, comprising a measuring insert with flanges with holes for mounting the insert in the pipeline, between which there is a measuring section made in the form of a metal measuring section of the pipeline, the ends of which are fixed to these flanges, two pipes are fixed on the measuring section for installing electroacoustic transducers an ultrasonic fluid velocity meter through the measuring section (RF patent No. 2277700, class G01F 1/66, dated 10.06.2006). A known device requires the presence of matching flanges on the pipeline for mounting the section in the pipeline, since the position of the section flanges and the mounting holes made therein are rigidly fixed relative to each other. The known device does not offer means of protection of measuring equipment elements from external influences, which makes possible their accidental or intentional damage.

A device for measuring the speed of a fluid containing a housing, a ceramic measuring tube with flanges at its ends, on the outer surface of which is placed a measuring unit, consisting of two sensors for measuring the parameters of the fluid in the pipeline. The measuring unit is closed externally with a metal housing fixed to the flanges. For reliable protection of the measuring sensors from external influences, the cavity of the measuring unit is filled with sealant. The device has a separately located unit for processing the measured parameters with a terminal box located inside it (patent RU No. 2349880 G01F 1/58, dated March 20, 2009). This device has a very small volume, protected from accidental external influences, determined by the diameter of the connecting flanges. In addition, as in the previous device, when installing the device, it is necessary to coordinate the flanges of the pipeline and the device.

A device for measuring the velocity of a fluid containing a measuring section of the pipeline with two sensors for measuring the parameters of the fluid in the pipeline, a unit for processing the measured parameters, in which the measuring section of the pipeline is two-layer and includes two layers: an outer layer of non-magnetic material and an inner layer of chemically resistant non-conductive material covering the inner surface and the ends of the layer of non-magnetic material (RF patent for utility model No. 107859, class G01F 1/56, 04/27/2011). The known device provides good resistance to the effects of the fluid, but does not have the means to protect the elements of the measuring equipment from external influences, which makes possible their accidental or deliberate damage. A known device requires the presence of matching flanges on the pipeline for mounting sections in the pipeline. In addition, the presence of a separate unit for placing equipment in it for processing the measured data and transmitting them to external systems increases the dimensions of the device.

Utility Model Essence

The objective of this utility model is to develop a compact device for measuring the velocity of a fluid in a pipeline, which can be easily mounted on the pipeline and which can provide protection against external influences of the entire complex of measuring equipment, including sensors, equipment for processing the measured data and equipment for transmitting the processed data to the external remote systems.

To solve this problem, a device for measuring the velocity of a fluid in a pipeline is proposed, comprising a measuring insert equipped with end pipes with flanges fixed to them with holes for mounting the insert in the pipeline, between which there is a measuring section made in the form of a measuring section of the pipeline made of a dielectric composite material , the ends of which are fixed on these nozzles, a compartment for accommodating equipment for measuring the speed of the fluid through measuring section, covering the measuring section, the measuring equipment located in the said compartment, including at least an ultrasonic fluid velocity meter through the measuring section, a power unit and means for processing the received data, and a casing for protecting the measuring equipment in the compartment from external impact, while the casing has two side walls that limit the compartment from the ends, an external protective screen located between the end walls, and fasteners connecting these the shackle walls with each other, with at least one of the flanges mounted on the end pipe with the possibility of rotation relative to this end pipe

Moreover, in the proposed device, one side wall is made integrally with one of the flanges, and the other side wall is connected to the second flange with the possibility of rotation relative to this flange.

In addition, in the proposed device, the external protective shield is made of metal or reinforced dielectric composite material, or carbon fiber.

In addition, in the proposed device, both flanges are mounted on the end pipes with the possibility of rotation relative to the end pipes.

In addition, the fluid velocity meter comprises ultrasonic transducers fixed to the wall of the measuring section of dielectric material.

In addition, in the proposed device, the measuring section is equipped with sensors for measuring pressure and temperature of the fluid in the measuring section.

The proposed device for measuring the speed of the fluid in the pipeline is easily mounted in the pipeline, provides maintenance of the equipment without removing it from the pipeline and reliable protection of the equipment from vandals and external influences.

BRIEF DESCRIPTION OF THE DRAWINGS

Drawings of the application are presented in the form sufficient for the understanding of the utility model by specialists in this field of technology and in no way limit the scope of protection. In the figures, the same elements have the same item numbers.

In FIG. 1 shows a longitudinal section of the proposed device for measuring the speed of a fluid in a pipeline;

in FIG. 2 shows, on an enlarged scale, location A in FIG. one.;

in FIG. 3 shows a general view of a device for measuring the velocity of a fluid in an assembly;

in FIG. 4 shows a general view of a device for measuring the velocity of a fluid in a pipeline with a protective shield removed.

EXAMPLES OF IMPLEMENTATION OF A USEFUL MODEL

The device 1 for measuring the speed of the fluid in the pipeline contains a measuring insert 2, equipped with end pipes 3 and 4 with flanges 5 and 6 fixed to them with holes 7 for mounting the insert 2 in the pipeline. Between the end pipes 3 and 4 there is a measuring section made in the form of a measuring section 8 of the pipeline of a dielectric composite material. The ends of section 8 are fixed to the indicated nozzles 3 and 4. The device has a compartment for accommodating equipment for measuring the speed of the fluid through the measuring section, covering the measuring section. The compartment contains all the equipment necessary for measuring the parameters of the fluid flowing through the pipeline and processing the measured parameters in order to convert the signal from the sensors for measuring the parameters of the fluid into the speed of the fluid and transfer the calculated data to an external server. The measuring apparatus includes at least an ultrasonic fluid velocity meter through the measuring section, including, for example, two ultrasonic transducers 9 for measuring the flow velocity in the measuring section 8, mounted on the wall of the measuring section 8, for example, from above and bottom of the measuring section. The measuring apparatus also includes a fluid temperature sensor 10 and a fluid pressure sensor 11 in a section 7 of the pipeline. The measuring section, if necessary, can be equipped with other sensors, for example, a continuity sensor. At least one container 12 is also located in the said compartment, in which there are means for processing data received from sensors 9, 10 and 11, which measure the parameters of the fluid in section 7. Power supplies and information transfer means can also be placed in the container to an external server using wired and wireless communications. The compartment has a casing for protecting the measuring equipment in the compartment from external influences, while the casing has two side walls 13 and 14 defining the compartment from the ends, an external protective screen 15 located between the end walls 13 and 14, and fastening elements 16 connecting these side walls with each other.

Flanges 5 and 6 are fixed on the end pipes 3 and 4 with the possibility of their rotation relative to the end pipes, for example, using a threaded connection of the flanges 5 and 6 with the pipes 3 and 4.

One side wall of the protective casing is integral with one of the flanges, for example, in the illustrated embodiment, the side wall 13 is integral with the flange 5. The other side wall is connected to the second flange with the possibility of rotation relative to this flange, for example, in the In an embodiment, the side wall 14 of the protective casing is rotatably connected to the flange 6 with respect to this flange. In the illustrated embodiment, the side wall 14 is joined to the flange 6 by means of a stepped cylinder, as shown in FIG. 2, but any known connections, for example a threaded connection, can be used. The dimensions, in particular the outer diameter of the side walls 13 and 14, are determined by the volume of the compartment for accommodating the equipment.

In the presented embodiment, the side walls 13 and 14 are made in the form of circular disks, but the side walls 13 and 14 may have another shape, for example, the side walls 13 and 14 may have the shape of rectangular or square plates or another shape.

The material for the manufacture of an external protective shield 15 is determined by the tasks assigned to it. If protection of the equipment in the compartment from external electromagnetic radiation is required, then any suitable metals and alloys are used to manufacture the shield 17.

Otherwise, the protective shield 17 is made of reinforced dielectric composite material, for example, fiberglass, organoplast, reinforced thermoplastics.

If you want to limit the interference on the sensors of their own electromagnetic radiation, the protective shield 15 can be made of carbon fiber.

The outer casing also provides anti-vandal protection for the electronics used in the device.

The fluid parameters measured by the device can be used directly to determine the flow rate of the fluid in the pipeline, but also for subsequent calculations of the volumetric or mass flow rate of the fluid. Measuring the pressure and temperature of the fluid will provide higher accuracy in determining the flow rate and subsequent calculations of the volumetric or mass flow rate of the fluid flowing through the pipeline.

The proposed device for measuring the speed of the fluid can be easily mounted on the pipeline, even if the mounting holes on the flanges of the pipeline are tangentially mixed relative to each other. This offset also does not affect the installation of the protective casing, since the side walls 13 and 14 can rotate relative to each other. An additional advantage of the proposed device is that the equipment in the compartment can be checked and, if necessary, replaced, without removing the device for measuring speed from the pipeline. It is enough to remove the fastening elements 16, disconnect one side wall (in the embodiment, the side wall 14) and freely remove the protective shield 15.

It should be understood that this description is only to illustrate the implementation of the utility model, and in no way limits the scope of protection of the utility model, given as an illustration of an example implementation.

Claims (8)

1. A device for measuring the velocity of a fluid in a pipeline, comprising a measuring insert equipped with end pipes with flanges fixed to them with holes for mounting the insert in the pipeline, between which there is a measuring section made in the form of a measuring section of the pipeline of a dielectric composite material, the ends of which mounted on the indicated pipes, a compartment for accommodating equipment for measuring the speed of the fluid through the measuring section, covering the measuring sec ju, located in the said compartment measuring equipment, including at least an ultrasonic fluid velocity meter through the measuring section, a power supply and means for processing the received data, and a casing for protecting the measuring equipment in the compartment from external influences, while the casing has two side walls that limit the compartment from the ends, an external protective screen located between the end walls, and fasteners connecting these side walls to each other. 2. The device for measuring speed according to claim 1, in which one side wall is made integrally with one of the flanges, and the other side wall is connected to the second flange with the possibility of rotation relative to this flange. 3. The device for measuring speed according to claim 1, in which the external protective screen is made of metal. 4. The device for measuring speed according to claim 1, in which the external protective screen is made of a reinforced dielectric composite material. 5. The device for measuring speed according to claim 1, in which the external protective screen is made of carbon fiber. 6. The device for measuring speed according to claim 1, in which the flanges are mounted on the end pipes with the possibility of rotation relative to the end pipes. 7. The device for measuring speed according to claim 1, wherein the ultrasonic fluid velocity meter comprises ultrasonic transducers fixed to the wall of the measuring section of dielectric material. 8. The device for measuring speed according to claim 1, in which the measuring section is equipped with sensors for measuring pressure and temperature of the fluid in the measuring section.