Plug-in type gas ultrasonic flowmeter
阅读说明：本技术 一种***式气体超声波流量计 (Plug-in type gas ultrasonic flowmeter ) 是由 吕德月 曹海彬 于 2020-06-10 设计创作，主要内容包括：一种插入式气体超声波流量计,包括连接组件和流量计本体,连接组件与流量计本体通过焊接连接,连接组件上方设有积算仪连接座,连接组件内部一侧设有压力传感器,压力传感器下方设有传感器固定座,连接组件另一侧设有温度传感器,积算仪连接座下方设有管道固定座,积算仪连接座与管道固定座通过调节固定法兰固定,管道固定座内部设有延伸段,连接组件下方为流量计本体,流量计本体上端设有起到密封作用的密封组件,流量计本体内部设有超声波传感器,超声波传感器通过压紧螺母进行固定,流量计本体一侧设置有整流器,整流器呈蜂窝状,整流器通过螺丝固定于流量计本体一侧,流量计下端同样设有超声波传感器,通过压紧螺母固定,通过封盖进行密封。(A plug-in type gas ultrasonic flowmeter comprises a connecting assembly and a flowmeter body, wherein the connecting assembly is connected with the flowmeter body through welding, an integrating instrument connecting seat is arranged above the connecting assembly, a pressure sensor is arranged on one side inside the connecting assembly, a sensor fixing seat is arranged below the pressure sensor, a temperature sensor is arranged on the other side of the connecting assembly, a pipeline fixing seat is arranged below the integrating instrument connecting seat, the integrating instrument connecting seat and the pipeline fixing seat are fixed through an adjusting fixing flange, an extension section is arranged inside the pipeline fixing seat, the flowmeter body is arranged below the connecting assembly, a sealing assembly for sealing is arranged at the upper end of the flowmeter body, an ultrasonic sensor is arranged inside the flowmeter body, the ultrasonic sensor is fixed through a compression nut, a rectifier is arranged on one side of the flowmeter, the lower end of the flowmeter is also provided with an ultrasonic sensor which is fixed through a compression nut and sealed through a sealing cover.)
1. The utility model provides a bayonet gaseous ultrasonic flowmeter, its characterized in that, includes coupling assembling (1) and flowmeter body (2), coupling assembling (1) top is equipped with integrating instrument connecting seat (3), coupling assembling (1) inside one side is equipped with pressure sensor (14), pressure sensor (14) below is equipped with and is used for reinforced (rfd) sensor fixing base (4), coupling assembling (1) opposite side is provided with temperature sensor (5), integrating instrument connecting seat (3) below is equipped with pipeline fixing base (6), integrating instrument connecting seat (3) are fixed through adjusting mounting flange (7) with pipeline fixing base (6), pipeline fixing (6) seat inside is equipped with extension section (8), coupling assembling (1) below is flowmeter body (2), flowmeter body (2) upper end is equipped with seal assembly (9) that play the sealing effect, flowmeter body (2) inside is equipped with ultrasonic sensor (10), ultrasonic sensor (10) are fixed through gland nut (11), flowmeter body (2) one side is provided with rectifier (12), flowmeter body (2) lower extreme is equipped with ultrasonic sensor (10) equally, through gland nut (11) are fixed, and the below is sealed through closing cap (13).
2. Plug-in ultrasonic gas meter according to claim 1, characterized in that the connection assembly (1) is connected to the meter body (2) by welding.
3. An inserted ultrasonic gas meter according to claim 1, characterized in that the flow straightener (12) is honeycomb shaped.
4. An inserted ultrasonic gas meter according to claim 3, characterized in that the rectifier (12) is fixed to the meter body (2) side by screws (1201).
5. An insertable gas ultrasonic flow meter according to claim 1, characterized in that the sensor holder (4) is divided into a pressure sensor holder (401) and a temperature sensor holder (402).
Technical Field
The invention relates to the field of ultrasonic flowmeters, in particular to an inserted gas ultrasonic flowmeter suitable for large calibers.
Background
The ultrasonic flowmeter is a new flowmeter developed in recent years, and although the ultrasonic metering concept is proposed earlier, the application of the ultrasonic flowmeter is promoted by the rapid development of integrated circuits after the 70 s of the 20 th century with real breakthrough progress. The natural gas industry in China is in a period of high development, and the gas ultrasonic flow meter has the following unique advantages: the natural gas flow meter has the advantages of no pressure loss, wide flow range, low flow lower limit, high pressure resistance and the like, and is favored by a large number of natural gas users.
An important factor influencing the metering accuracy of the ultrasonic flowmeter is the influence of the fluid state of the fluid, the ultrasonic metering principle is mainly time difference method metering, the purpose of measuring the gas flow is realized by measuring the speed of sound waves propagating in the fluid, the existence of a valve, a space elbow, a reducing pipe and the like in a pipeline causes the instability of a flow field, and complex and variable flow field ghost images such as secondary flow and the like exist to influence the propagation of the sound waves, so that the metering accuracy is influenced. The large-caliber gas ultrasonic flowmeter needs to be provided with a plurality of sensor channels, and performs weighted average calculation on data acquired by each channel, so that the large-caliber gas ultrasonic flowmeter is close to the real average flow rate of a pipeline, has a complex structure, large calculation amount, high cost and inconvenient field installation. Therefore, the plug-in type structural design is carried out, the structure is simple, the installation is convenient, the calculated amount is saved, the metering performance can be ensured, and the great innovation is realized.
Disclosure of Invention
【1】 Technical problem to be solved
The invention aims to provide an insertion type ultrasonic flowmeter suitable for large calibers, which can be suitable for various calibers, and has the advantages of small volume, simple structure, convenient installation, cost saving and high metering precision.
【2】 Technical scheme for solving problems
In order to solve the above problems, the present invention provides the following technical solutions:
an inserted gas ultrasonic flowmeter comprises a connecting assembly and a flowmeter body, wherein an integrating instrument connecting seat is arranged above the connecting assembly, a pressure sensor is arranged on one side inside the connecting assembly, a sensor fixing seat for reinforcement is arranged below the pressure sensor, a temperature sensor is arranged on the other side of the connecting assembly, a pipeline fixing seat is arranged below the integrating instrument connecting seat, the integrating instrument connecting seat and the pipeline fixing seat are fixed through a regulating fixing flange, an extension section is arranged inside the pipeline fixing seat, a flowmeter body is arranged below the connecting assembly, a sealing assembly for sealing is arranged at the upper end of the flowmeter body, an ultrasonic sensor is arranged inside the flowmeter body and fixed through a compression nut, a rectifier is arranged on one side of the flowmeter body, and an ultrasonic sensor is also arranged at the lower end of the flowmeter body, the lower part of the device is sealed by a sealing cover.
Still further compared with the scheme, the connecting assembly is connected with the flowmeter body through welding.
Further compared with the scheme, the rectifier is in a honeycomb shape.
Compared with the scheme, the rectifier is further fixed on one side of the flowmeter body through screws. Compare above-mentioned scheme further, the sensor fixing base divide into pressure sensor fixing base and temperature sensor fixing base.
【3】 Advantageous effects
The invention has simple and compact structure, convenient installation and maintenance, is particularly suitable for large-diameter pipelines, does not need multi-channel design, saves cost, has accurate measurement and can adjust the insertion depth according to different pipe diameters.
Drawings
FIG. 1 is a view of the present invention in conjunction with a pipe;
FIG. 2 is a cross-sectional view of the present invention in cooperation with a pipe;
FIG. 3 is a cross-sectional view of the present invention;
figure 4 is a side view of the invention in engagement with a pipe.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
The invention discloses an insertion type gas ultrasonic flowmeter.
The device comprises a connecting assembly 1 and a flowmeter body 2, wherein the connecting assembly 1 is in threaded connection with the flowmeter body 2, an integrating
In the implementation process of the embodiment of the invention, the flowmeter body 2 is connected with the
The ultrasonic flowmeter is a new flowmeter developed in recent years, and although the ultrasonic metering concept is proposed earlier, the application of the ultrasonic flowmeter is promoted by the rapid development of integrated circuits after the 70 s of the 20 th century with real breakthrough progress. The natural gas industry in China is in a period of high development, and the gas ultrasonic flow meter has the following unique advantages: the natural gas flow meter has the advantages of no pressure loss, wide flow range, low flow lower limit, high pressure resistance and the like, and is favored by a large number of natural gas users.
An important factor influencing the metering accuracy of the ultrasonic flowmeter is the influence of the fluid state of the fluid, the ultrasonic metering principle is mainly time difference method metering, the purpose of measuring the gas flow is realized by measuring the speed of sound waves propagating in the fluid, the existence of a valve, a space elbow, a reducing pipe and the like in a pipeline causes the instability of a flow field, and complex and variable flow field ghost images such as secondary flow and the like exist to influence the propagation of the sound waves, so that the metering accuracy is influenced. The large-caliber gas ultrasonic flowmeter needs to be provided with a plurality of sensor channels, and performs weighted average calculation on data acquired by each channel, so that the large-caliber gas ultrasonic flowmeter is close to the real average flow rate of a pipeline, has a complex structure, large calculation amount, high cost and inconvenient field installation. Therefore, the plug-in type structural design is carried out, the structure is simple, the installation is convenient, the calculated amount is saved, the metering performance can be ensured, and the great innovation is realized.
Compared with the prior art, the invention has simple and compact structure, convenient installation and maintenance, is particularly suitable for large-diameter pipelines, does not need multi-channel design, saves cost, has accurate measurement and can adjust the insertion depth according to different pipe diameters.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
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