CN219084173U

CN219084173U - Ultrasonic flow measuring device

Info

Publication number: CN219084173U
Application number: CN202223322139.7U
Authority: CN
Inventors: 熊友辉; 刘志强; 吴欢; 秦旭; 冯继辉
Original assignee: Sifang Optoelectronic Co ltd
Current assignee: Sifang Optoelectronic Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-26
Anticipated expiration: 2032-12-12

Abstract

The utility model provides an ultrasonic flow measuring device, comprising: an inlet connection part provided with an air inlet and an air outlet; the gas inlet is used for connecting a gas inflow pipeline; the air inlet end of the ultrasonic metering module is connected with the air outlet; the inlet connecting part comprises a first part and a second part which are connected with each other, the air inlet is arranged on the first part, and the air outlet is arranged on the second part; the second portion includes a first conduit and a second conduit that are vertically connected. According to the ultrasonic flow measurement device, the inlet connecting part is connected to the air inlet end of the ultrasonic measurement module, and gas entering from the gas inflow pipeline directly flows into the ultrasonic measurement module after passing through the inlet connecting part, so that the influence of external air flow disturbance or unstable flow fields caused by different gas flow rates can be effectively reduced, the working stability of the flow measurement device is improved, and the zero point stability and the flow measurement precision are further improved.

Description

Ultrasonic flow measuring device

Technical Field

The utility model belongs to the technical field of flow measuring instruments, and particularly relates to an ultrasonic flow measuring device.

Background

The ultrasonic flow measurement device generally comprises a flow measurement unit (integrated with a calculation unit), an outlet connection part, a motor valve and the like, wherein the flow measurement unit of the existing ultrasonic flow measurement device is generally directly connected with a gas outlet of the measurement device through an elbow pipe, such as an ultrasonic flowmeter disclosed in Chinese patent CN103270396A, in the attached figure 1, a measured gas flow flows into a buffer space in the measurement device from a fluid supply path and then flows into a flow detection unit, the flow detection unit is directly connected with a fluid outflow path through a connection elbow pipe, and under the condition that the gas flow is large, the flow field flowing into the flow detection unit is unstable, turbulence is easy to form, and the measurement accuracy of the flow detection unit is influenced; and in the presence of external disturbances, the metering zero also fluctuates or drifts.

Disclosure of Invention

The utility model aims to provide an ultrasonic flow measuring device, which solves the technical problem of the prior art that the metering accuracy of a flow detection unit is reduced due to unstable flow field in the ultrasonic flow measuring device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided an ultrasonic flow rate measuring apparatus comprising:

an inlet connection part provided with an air inlet and an air outlet; the gas inlet is used for connecting a gas inflow pipeline; the method comprises the steps of,

the air inlet end of the ultrasonic metering module is connected with the air outlet;

the inlet connection part comprises a first part and a second part which are connected with each other, the air inlet is arranged on the first part, and the air outlet is arranged on the second part; the second portion includes a first conduit and a second conduit that are vertically connected.

Further, a valve installation position is arranged at the air inlet.

Further, one end of the first pipeline is provided with a sedimentation groove, and the sedimentation groove is arranged at a joint close to the first pipeline and the second pipeline.

Further, the first portion and the second portion are integrally formed.

Further, the first part and the second part are connected into a whole through clamping or inserting connection.

Further, one or more rectifying plates are arranged in the second pipeline, and the one or more rectifying plates are arranged in parallel with the gas flow direction.

Further, the valve installation position is integrally provided with a motor valve.

Further, the ultrasonic metering module and the inlet connecting part are connected into a whole through clamping or inserting connection.

Further, a clamping protruding portion is arranged on the air inlet side port of the ultrasonic metering module, and a clamping groove matched with the clamping protruding portion in a clamping mode is arranged on the air outlet side port of the inlet connecting portion.

Further, the ultrasonic measuring device comprises a connecting contact pin, a slot is arranged on the air inlet side port of the ultrasonic measuring module, a jack is arranged on the air outlet side port of the inlet connecting portion, and the connecting contact pin is inserted into the jack and the slot to connect the ultrasonic measuring module with the inlet connecting portion into a whole.

Further, the ultrasonic measuring device also comprises a packaging shell, the inlet connecting part and the ultrasonic measuring module are arranged in the packaging shell, the air inlet is integrally arranged in the air inflow port of the packaging shell, and the air outlet end of the ultrasonic measuring module is communicated with the air outflow port of the packaging shell.

Compared with the prior art, the method has the following technical effects:

according to the ultrasonic flow measurement device, the inlet connecting part is connected to the air inlet end of the ultrasonic measurement module, so that gas entering from the gas inflow pipeline directly flows into the ultrasonic measurement module after passing through the inlet connecting part, the influence of external air flow disturbance or unstable flow fields caused by different gas flow rates can be effectively reduced, the working stability of the flow measurement device is improved, and the zero point stability and the flow measurement precision are further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an overall structure of an ultrasonic flow measurement device according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of an internal structure of an ultrasonic flow measurement device according to an embodiment of the present utility model (an internal structure of an ultrasonic measurement module is not shown);

FIG. 3 is a schematic diagram of a frying structure of an ultrasonic flow measurement device according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a frying structure of another ultrasonic flow measurement device according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of an integrally formed inlet connection according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of the overall structure of another ultrasonic flow measurement device according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of a gas flow direction in an ultrasonic flow measurement device according to an embodiment of the present utility model (the direction indicated by the arrow in the figure represents the gas flow direction).

Wherein, each reference sign in the figure:

1. the ultrasonic testing device comprises an inlet connecting part 2, an ultrasonic metering module 3, a motor valve 4, a rectifying plate 5, a connecting pin 6, a packaging shell 11, a first part 12, a second part 101, an air inlet 102, an air outlet 103, a clamping groove 104, an inserting hole 121, a first pipeline 122, a second pipeline 201, a clamping protruding part 202, an inserting groove 601, a gas inflow port 602, a gas outflow port 1211 and a sedimentation groove.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," second, "" third, "" fourth, "and fifth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 7, an ultrasonic flow measurement device according to an embodiment of the utility model will be described.

In one embodiment of the present utility model, an ultrasonic flow measurement device of the embodiment of the present utility model includes an inlet connection portion 1 and an ultrasonic measurement module 2, the inlet connection portion 1 is provided with an air inlet 101 and an air outlet 102, the air inlet 101 is used for connecting a gas inflow pipe, and an air inlet end of the ultrasonic measurement module 2 is connected with the air outlet 102 of the inlet connection portion 1. The inlet connection 1 of the embodiment of the utility model comprises a first part 11 and a second part 12 which are connected with each other, an air inlet 101 is arranged on the first part 11, and an air outlet 102 is arranged on the second part 12; the second section 12 includes a first conduit 121 and a second conduit 122 that are connected vertically.

The ultrasonic metering module 2 of the embodiment of the utility model is an ultrasonic metering module with a V-shaped structure.

It can be understood that the ultrasonic measuring module 2 of the present utility model may be extended to an ultrasonic measuring module with an "N" type, "W" type, or an "X" type structure, which will not be described herein.

Compared with the structure that an outlet of an ultrasonic metering module is connected with a gas outflow pipeline through a bent pipe in the existing ultrasonic gas flow metering device, the ultrasonic flow metering device provided by the embodiment of the utility model has the advantages that the inlet connecting part 1 is connected to the air inlet end of the ultrasonic metering module 2, so that gas entering from the gas inflow pipeline directly flows into the ultrasonic metering module 2 after passing through the inlet connecting part 1, the influence of external airflow disturbance or unstable flow fields caused by different gas flow rates can be effectively reduced, the working stability of the flow metering device is improved, and the zero point stability and the flow metering precision are further improved.

One end of the first pipe 121 in the embodiment of the present utility model is provided with a sedimentation groove 1211, and the sedimentation groove 1211 is provided near the junction of the first pipe 121 and the second pipe 122. After the gas enters the inlet connecting part 1, impurities with larger weight in the gas flow can be settled in the settling groove 1211, the settling groove 1211 can be used as a collecting component for large-particle dust and water vapor in the inflow gas, and can also generate certain buffering and rectifying effects on the gas, so that the working stability of the flow measuring device is improved.

The air inlet 101 of the embodiment of the utility model is provided with a valve mounting position for mounting a valve to control the air inflow.

The first portion 11 and the second portion 12 of the embodiment of the present utility model may be integrally formed, as shown in fig. 5; in addition, the first part 11 and the second part 12 can be connected integrally through clamping or inserting connection, so that connection and sealing are facilitated, as shown in fig. 1-4 and 6.

The second pipeline 122 in the embodiment of the present utility model is provided with a plurality of rectifying plates 4, and the plurality of rectifying plates 4 are arranged parallel to the gas flow direction. Before gas enters the ultrasonic metering module 2, the flow of the gas is regulated and rectified through the rectifying plate 4, so that the flow field of the gas entering the ultrasonic metering module 2 is stable and uniform, the stability of the flow field is improved, and the metering precision is further improved.

The motor valve 3 is integrally arranged at the valve installation position. The flow of the incoming gas is controlled by a motor valve 3. The inlet connecting part 1, the ultrasonic metering module 2 and the motor valve 3 are integrated into a whole, and the ultrasonic metering module can be used as an integrated module to be installed in a flow detection device, so that the installation flow is simplified, and the assembly efficiency and the production efficiency are improved. In addition, the motor valve 3 is integrally arranged at the valve installation position of the inlet connecting part 1, so that the self shell design of the motor valve 3 can be omitted, the motor valve 3 and the inlet connecting pipeline of the inlet connecting part 1 are integrated into a whole, the motor valve 3 becomes a part of the inlet connecting part 1, the normal operation of the motor valve 3 is ensured, the shell part of the motor valve 3 is also saved, and the cost is reduced.

The ultrasonic metering module 2 and the inlet connecting part 1 of the embodiment of the utility model can be connected into a whole through clamping, thereby being convenient for connection and sealing. Specifically, the air inlet side port of the ultrasonic metering module 2 is provided with a clamping protrusion 201, and the air outlet side port of the inlet connection part 1 is provided with a clamping groove 103 matched and clamped with the clamping protrusion 201, as shown in fig. 3.

In addition, the ultrasonic metering module 2 and the inlet connecting part 1 can be connected into a whole through plug connection, so that the ultrasonic metering module is convenient to connect and seal. Specifically, the ultrasonic flow measurement device according to the embodiment of the present utility model further includes a connection pin 5, a slot 202 is disposed on the inlet port of the ultrasonic measurement module 2, a jack 104 is disposed on the outlet port of the inlet connection portion 1, and the connection pin 5 is inserted into the jack 104 and the slot 202 to connect the ultrasonic measurement module 2 and the inlet connection portion 1 into a whole, as shown in fig. 4.

The ultrasonic flow measurement device according to the embodiment of the utility model further comprises a packaging shell 6, the inlet connection part 1 and the ultrasonic measurement module 2 are arranged in the packaging shell 6, the air inlet 101 of the inlet connection part 1 is integrally arranged in the air inflow port 601 of the packaging shell 6, and the air outlet end of the ultrasonic measurement module 2 is communicated with the air outflow port 602 of the packaging shell 6, as shown in fig. 6.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. An ultrasonic flow measurement device, comprising:

2. An ultrasonic flow measurement device according to claim 1, wherein the air inlet is provided with a valve mounting location.

3. The ultrasonic flow measurement device of claim 1, wherein one end of the first pipe is provided with a sedimentation groove, and the sedimentation groove is arranged near the connection part of the first pipe and the second pipe; and/or the number of the groups of groups,

the first portion and the second portion are integrally formed.

4. An ultrasonic flow measurement device according to claim 1, wherein the first portion and the second portion are integrally connected by a snap-fit or plug-in connection.

5. An ultrasonic flow measurement device according to claim 1 wherein one or more flow straightening plates are disposed in the second conduit, the one or more flow straightening plates being disposed parallel to the flow direction of the gas.

6. An ultrasonic flow measurement device according to claim 2, wherein the valve mounting location is integrally provided with a motor valve.

7. An ultrasonic flow measurement device according to any one of claims 1 to 6, wherein the ultrasonic metering module is integrally connected to the inlet connection by a snap-fit or plug-in connection.

8. The ultrasonic flow measurement device of claim 7, wherein the inlet side port of the ultrasonic metering module is provided with a clamping protrusion, and the outlet side port of the inlet connection part is provided with a clamping groove matched and clamped with the clamping protrusion.

9. The ultrasonic flow measurement device of claim 7, further comprising a connection pin, wherein a slot is provided on the inlet port of the ultrasonic metering module, a jack is provided on the outlet port of the inlet connection, and the connection pin is inserted into the jack and the slot to connect the ultrasonic metering module and the inlet connection into a single body.

10. An ultrasonic flow measurement device as claimed in any one of claims 1 to 6 and 8 to 9, further comprising a housing, wherein the inlet connection and the ultrasonic metering module are disposed within the housing, the air inlet is integrally mounted within the gas inlet of the housing, and the air outlet of the ultrasonic metering module is in communication with the gas outlet of the housing.