Steam flow metering device

Abstract

The utility model relates to the field of fluid flow metering instruments, and discloses a steam flow metering device which comprises a pipe body, connecting flanges, a vertical pipe and a display instrument, the connecting flanges are arranged on two sections of the pipe body respectively, the vertical pipe is arranged in the center of the pipe body and extends towards the outer side of the upper portion, and the display instrument is arranged on the top of the vertical pipe. The device is characterized in that the interior of the vertical pipe is communicated with the interior of a pipe body, a vortex street generator is installed in the vertical pipe, a vibration sensor and a temperature sensor are installed in the vortex street generator, an instrument support is installed on the top of the vertical pipe, and a display instrument is installed on the instrument support. Compared with the prior art, the device has the advantages that the installation mode of the vortex street generator is adjusted, the vortex street generator can be disassembled and assembled through bolts, meanwhile, the temperature sensor and the vibration sensor are installed in the vortex street generator, the damage frequency is reduced, meanwhile, the installation angle of the instrument support can be adjusted, and installation is convenient. The instrument support can be installed from multiple angles, and field staff can conveniently observe instrument readings.

Description

Technical Field

[0001] The utility model relates to the field of fluid flow metering instruments, in particular to a steam flow metering device. Background Art

[0002] Steam flow metering devices are used to measure the amount of steam flowing in industrial processes. It usually includes a flow sensor, a sensor signal converter, a display and a data recorder. At present, steam flow meters usually use vortex flowmeters. Vortex flowmeters are instruments commonly used to measure the flow of liquids, gases and steam. The basic principle is that when liquid or gas flows through a fixed device, a series of vortices are generated, called Karman vortex streets. The frequency of these vortices is proportional to the velocity of the fluid. Vortex flowmeters calculate the flow rate of the fluid by connecting these vortex sensors to the metering device and measuring the frequency they generate.

[0003] Since steam is a compressible gas, in order to accurately measure the steam flow rate, it is usually necessary to install a temperature sensor near the steam flowmeter to measure the steam temperature and correct the flow rate based on the temperature value. However, the vortex sensor and temperature sensor involved in the vortex flowmeter are easily damaged due to long-term exposure to the steam vortex, and the disassembly and installation of the vortex flowmeter is relatively complicated and not easy to maintain later. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The utility model aims to solve the technical problem that a sensor of a vortex steam flow meter is difficult to be disassembled and repaired after being damaged, and provides a steam flow metering device.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a steam flow metering device, which includes a pipe body, a connecting flange, a vertical pipe and a display instrument, the connecting flanges are respectively arranged at two sections of the pipe body, the vertical pipe is arranged in the center of the pipe body and extends upward and outward, and the display instrument is arranged at the top of the vertical pipe.

[0008] The interior of the vertical pipe is connected to the interior of the pipe body, a vortex generator is installed in the vertical pipe, a vibration sensor and a temperature sensor are installed in the vortex generator, an instrument bracket is installed on the top of the vertical pipe, and the display instrument is installed on the instrument bracket.

[0009] Furthermore, a first mounting hole and a second mounting hole are respectively provided inside the vortex generator, and the vibration sensor and the temperature sensor are respectively vertically inserted into the first mounting hole and the second mounting hole.

[0010] Furthermore, a through hole matching the cross-sectional profile of the vortex generator is provided on the top of the tube body, a mounting surface is provided on the inner surface of the bottom of the tube body directly below the through hole, a plurality of limit columns are provided on the top of the mounting surface, the bottom end surface of the vortex generator is matched with the mounting surface, and a plurality of limit holes matching the limit columns are provided at the bottom end of the vortex generator.

[0011] Furthermore, a sealing sleeve matching the vertical pipe is provided on the top of the vortex generator, a mounting flange matching the vertical pipe is provided on the top of the sealing sleeve, and the tops of the vibration sensor and the temperature sensor extend to the outside of the top of the mounting flange.

[0012] Furthermore, a first cable and a second cable are respectively provided between the vibration sensor and the temperature sensor and the display instrument, the instrument bracket is provided with a plurality of cable holes matching the first cable and the second cable, and a plurality of bolts are symmetrically arranged at the center of the bottom of the instrument bracket to connect the vertical pipe, the mounting flange and the instrument bracket.

[0013] 3. Beneficial Effects

[0014] The advantages of the utility model compared with the prior art are:

[0015] 1. This device adjusts the installation method of the vortex generator so that it can be disassembled and assembled by bolts. At the same time, the temperature sensor and vibration sensor are installed inside the vortex generator to reduce the frequency of damage.

[0016] 2. The device is equipped with an instrument bracket with adjustable installation angle. The instrument bracket can be installed from multiple angles, which makes it convenient for on-site staff to observe the instrument readings even if it is installed in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a steam flow metering device.

[0018] Figure 2 The present invention is a schematic diagram of the internal structure of a pipe body of a steam flow metering device.

[0019] Figure 3 The present invention is a structural schematic diagram of a limit hole of a steam flow metering device.

[0020] Figure 4 The present invention is a structural schematic diagram of the installation surface of a steam flow metering device.

[0021] Figure 5 The present invention is a structural schematic diagram of a vortex generator of a steam flow metering device.

[0022] Figure 6 The present invention is a structural schematic diagram of an instrument bracket of a steam flow metering device.

[0023] As shown in the figure: 1. Pipe body, 2. Connecting flange, 3. Vertical pipe, 4. Mounting flange, 5. Instrument bracket, 6. Display instrument, 7. Vortex generator, 8. Sealing sleeve, 9. Vibration sensor, 10. Temperature sensor, 11. Limit hole, 12. Limit column, 13. Mounting surface, 14. Through hole, 15. First mounting hole, 16. Second mounting hole, 17. First cable, 18. Second cable, 19. Cable hole, 20. Bolt. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] Embodiment 1

[0026] Combined with Figure 1 A steam flow metering device includes a pipe body 1, a connecting flange 2, a vertical pipe 3 and a display instrument 6. The connecting flanges 2 are respectively arranged at two sections of the pipe body 1, the vertical pipe 3 is arranged in the center of the pipe body 1 and extends upward and outward, and the display instrument 6 is arranged at the top of the vertical pipe 3.

[0027] The interior of the vertical pipe 3 is connected to the interior of the pipe body 1 , a vortex generator 7 is installed in the vertical pipe 3 , a vibration sensor 9 and a temperature sensor 10 are installed in the vortex generator 7 , an instrument bracket 5 is installed on the top of the vertical pipe 3 , and the display instrument 6 is installed on the instrument bracket 5 .

[0028] Combined with Figure 5 The vortex generator 7 is provided with a first mounting hole 15 and a second mounting hole 16 , and the vibration sensor 9 and the temperature sensor 10 are vertically inserted into the first mounting hole 15 and the second mounting hole 16 , respectively.

[0029] Since the heat transfer characteristics between the vortex generator 7 material and steam can be measured before the equipment leaves the factory, the temperature sensor 10 can detect the internal temperature of the vortex generator 7 to obtain the steam temperature. At the same time, the inner surface of the first mounting hole 15 is arranged to be close to the vibration sensor 9, and the vibration of the vortex can be fully transmitted to the vibration sensor 9 to generate a reading. Therefore, the vibration sensor 9 and the temperature sensor 10 can be installed inside the vortex generator 7 to avoid damage caused by long-term exposure to steam.

[0030] Combined with Figure 2-5 The top of the tube body 1 is provided with a through hole 14 that matches the cross-sectional profile of the vortex generator 7, and the inner surface of the bottom of the tube body 1 is provided with a mounting surface 13 directly below the through hole 14. A plurality of limiting columns 12 are provided on the top of the mounting surface 13. The bottom end surface of the vortex generator 7 is arranged to match the mounting surface 13, and the bottom end of the vortex generator 7 is provided with a plurality of limiting holes 11 that match the limiting columns 12.

[0031] The vortex generator 7 is limited by the limiting column 12, the mounting surface 13 and the through hole 14 to ensure the stability of the vortex generator 7 after installation and to avoid the vortex generator 7 shaking due to steam flow, which may cause reading errors.

[0032] Embodiment 2

[0033] Combined with Figure 2 and attached Figure 6 The top of the vortex generator 7 is provided with a sealing sleeve 8 that matches the vertical pipe 3, and the top of the sealing sleeve 8 is provided with a mounting flange 4 that matches the vertical pipe 3. The tops of the vibration sensor 9 and the temperature sensor 10 extend to the outside of the top of the mounting flange 4. A first cable 17 and a second cable 18 are respectively provided between the vibration sensor 9 and the temperature sensor 10 and the display instrument 6. The instrument bracket 5 is provided with a plurality of cable holes 19 that match the first cable 17 and the second cable 18. A plurality of bolts 20 are symmetrically arranged at the center of the bottom of the instrument bracket 5 to connect the vertical pipe 3, the mounting flange 4 and the instrument bracket 5.

[0034] The instrument bracket 5 can be installed on the top of the vertical pipe 3 from multiple angles, so as to change the direction of the display instrument 6, making it convenient for production site workers to observe the instrument readings.

[0035] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A steam flow metering device, comprising a pipe body (1), a connecting flange (2), a vertical pipe (3) and a display instrument (6), wherein the connecting flange (2) is respectively arranged at two sections of the pipe body (1), the vertical pipe (3) is arranged at the center of the pipe body (1) and extends upward and outward, and the display instrument (6) is arranged at the top of the vertical pipe (3), characterized in that: The interior of the vertical pipe (3) is connected to the interior of the pipe body (1), a vortex generator (7) is installed in the vertical pipe (3), a vibration sensor (9) and a temperature sensor (10) are installed in the vortex generator (7), an instrument bracket (5) is installed on the top of the vertical pipe (3), and the display instrument (6) is installed on the instrument bracket (5).

2. A steam flow metering device according to claim 1, characterized in that: A first mounting hole (15) and a second mounting hole (16) are respectively provided inside the vortex generator (7), and the vibration sensor (9) and the temperature sensor (10) are respectively vertically inserted into the first mounting hole (15) and the second mounting hole (16).

3. A steam flow metering device according to claim 1, characterized in that: The top of the tube body (1) is provided with a through hole (14) matching the cross-sectional profile of the vortex generator (7); the inner surface of the bottom of the tube body (1) is provided with a mounting surface (13) directly below the through hole (14); a plurality of limiting columns (12) are provided on the top of the mounting surface (13); the bottom end surface of the vortex generator (7) is arranged to match the mounting surface (13); and the bottom end of the vortex generator (7) is provided with a plurality of limiting holes (11) matching the limiting columns (12).

4. A steam flow metering device according to claim 1, characterized in that: The top of the vortex generator (7) is provided with a sealing sleeve (8) that matches the vertical pipe (3), the top of the sealing sleeve (8) is provided with a mounting flange (4) that matches the vertical pipe (3), and the tops of the vibration sensor (9) and the temperature sensor (10) extend to the outside of the top of the mounting flange (4).

5. A steam flow metering device according to claim 1, characterized in that: A first cable (17) and a second cable (18) are respectively arranged between the vibration sensor (9) and the temperature sensor (10) and the display instrument (6); the instrument bracket (5) is provided with a plurality of cable holes (19) for matching the first cable (17) and the second cable (18); and a plurality of bolts (20) are symmetrically arranged at the bottom center of the instrument bracket (5) to connect the vertical pipe (3), the mounting flange (4) and the instrument bracket (5).

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