CN111811599A - Flowmeter temperature and pressure compensation device - Google Patents

Abstract

The invention relates to the field of sensors, in particular to a temperature and pressure compensation device of a flow meter, which is mainly applied to a gas flow meter for detecting temperature and pressure change data, can conveniently compensate temperature and pressure and improve the accuracy of flow data. A temperature and pressure sensor is sealed in the sealing part; the connecting portion and the mounting seat are internally provided with channels, the temperature and pressure sensor is connected with a flexible circuit, and the flexible circuit sequentially penetrates out of the mounting seat and the connecting portion along the channels. According to the temperature and pressure compensation device for the flowmeter, the connecting part is arranged in the flowmeter when the temperature and pressure compensation device is used through the matching of the connecting part, the mounting seat, the packaging part, the temperature and pressure sensor, the channel, the flexible circuit and the like, the temperature and pressure sensor is placed in an environment where gas flows, the temperature and pressure of the gas are detected in real time, data are transmitted to a background, a worker carries out certain flow compensation according to the temperature and pressure data, the temperature and pressure compensation can be conveniently carried out, and the accuracy of the flow data is improved.

Description

Flowmeter temperature and pressure compensation device

technical field

The invention relates to the field of sensors, in particular to a temperature and pressure compensation device for a flow meter which is mainly applied to a gas flow meter to detect temperature and pressure change data, which can facilitate temperature and pressure compensation and improve the accuracy of flow data.

Background technique

Flow meters, especially gas flow meters, are often used in daily life. For example, natural gas meters must be used in order to calculate the amount of natural gas used by users. The gas meter commonly used at present is measured by detecting the actual flow of gas. However, due to thermal expansion and contraction, the gap between gas in summer and winter is relatively large, and the actual consumption of gas with the same flow in summer is definitely much less than that in winter. The main reason is that there are differences in temperature and gas pressure, which lead to large differences in the amount of gas actually used by users. It is unfair to both the user and the gas company, so a device is needed to solve this problem.

SUMMARY OF THE INVENTION

Aiming at the defects in the prior art, the present invention provides a temperature and pressure compensation device for a flow meter which can detect temperature and pressure change data, can easily perform temperature and pressure compensation, and improve the accuracy of flow data.

The technical scheme adopted in the present invention is: a temperature and pressure compensation device for a flow meter, comprising a connecting part, a mounting seat and an encapsulating part which are connected in sequence, and a temperature and pressure sensor is encapsulated in the encapsulating part; the connecting part and the mounting seat are built-in There is a channel, the temperature and pressure sensor is connected with a flexible circuit, and the flexible circuit passes through the mounting seat and the connecting part in sequence along the channel.

In order to better realize the present invention, a copper sheet connector is provided at the end of the flexible circuit.

In order to better realize the present invention, a signal transmission line extending from the right end of the encapsulation part into the encapsulation part and connected to the temperature and pressure sensor is also included.

In order to better realize the present invention, the connecting portion is cylindrical, and is provided with an external thread for threaded connection.

In order to better realize the present invention, the outer shape of the mounting seat is a hexagonal prism, and the axis of the hexagonal prism coincides with the axis of the connecting portion.

In order to better realize the present invention, the connecting portion, the mounting seat and the encapsulating portion are integrally formed, and the channel is flat and passes through the connecting portion, the mounting seat and the encapsulating portion in sequence.

In order to better realize the present invention, a silicone seal is provided at the place where the left end of the connector is matched with the flexible circuit.

In order to better realize the present invention, a silicone seal is provided at the fitting part of the encapsulation part and the signal transmission line.

In order to better realize the present invention, the connecting portion, the mounting seat and the packaging portion are all made of POM material.

The beneficial effects of the present invention are reflected in: the temperature and pressure compensation device of the flow meter of the present invention, through the cooperation of the connecting part, the mounting seat, the packaging part, the temperature and pressure sensor, the channel and the flexible circuit, etc., the connecting part is installed in the flow meter during use. , let the temperature and pressure sensor be placed in the environment where the gas flows, detect the temperature and pressure of the gas in real time, and transmit the data to the background. Improved traffic data accuracy.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the specific embodiments or the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. In the drawings, each element or section is not necessarily drawn to actual scale.

Fig. 1 is a kind of structural representation of the temperature and pressure compensation device of the flow meter of the present invention;

In the drawings, 1-connecting part, 2-mounting seat, 3-encapsulation part, 4-flexible circuit, 5-signal transmission line, 6-copper connector, 7-temperature and pressure sensor.

Detailed ways

Embodiments of the technical solutions of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the usual meanings understood by those skilled in the art to which the present invention belongs.

Example 1:

As shown in FIG. 1 , the temperature and pressure compensation device for a flow meter of the present invention includes a connecting portion 1, a mounting seat 2 and an encapsulating portion 3 that are connected in sequence, and a temperature and pressure sensor 7 is encapsulated in the encapsulating portion 3; The connecting part 1 and the mounting seat 2 have a built-in channel, and the temperature and pressure sensor 7 is connected with a flexible circuit 4, and the flexible circuit 4 passes through the mounting seat 2 and the connecting part 1 in sequence along the channel. The temperature and pressure compensation device of the flow meter of the present invention, through the cooperation of the connecting part 1, the mounting seat 2, the packaging part 3, the temperature and pressure sensor 7, the channel and the flexible circuit 4, etc., is used to install the connecting part 1 into the flow meter, so that the The temperature and pressure sensor 7 is placed in the environment where the gas flows, detects the temperature and pressure of the gas in real time, and transmits the data to the background. The staff performs a certain flow compensation according to the data of temperature and pressure, which can facilitate the compensation of temperature and pressure and improve the accuracy of traffic data.

Example 2:

On the basis of the above-mentioned embodiment, in order to further implement the present invention better, a copper sheet connector 6 is provided at the end of the flexible circuit 4 . The provision of the copper sheet connector 6 can facilitate the connection between the flexible circuit 4 and the data interface and facilitate signal transmission.

Preferably, a signal transmission line 5 extending from the right end of the encapsulation part 3 into the encapsulation part 3 and connected to the temperature and pressure sensor 7 is also included. The function of the signal transmission line 5 is the same as that of the flexible circuit 4, both of which are used for signal transmission. After setting the signal transmission line 5, it can be connected with other data interfaces, which can facilitate the multi-interface transmission of signal data and facilitate the acquisition of data by different devices.

Example 3:

On the basis of the above-mentioned embodiment, in order to further implement the present invention better, the connecting portion 1 is cylindrical, and is provided with an external thread for threaded connection. After this design, the internal thread interface is arranged at the corresponding position in the flow meter, which can facilitate the installation and removal of the connection part 1 . Moreover, during installation, an elastic band can be used at the threaded interface to improve the sealing performance.

Preferably, the outer shape of the mounting seat 2 is a hexagonal prism, and the axis of the hexagonal prism coincides with the axis of the connecting portion 1 . After being designed in this way, a wrench tool can be used to cooperate with the outer side surface of the hexagonal prism body, and then rotated, so as to facilitate the installation and removal of the connecting portion 1 .

Example 4:

On the basis of the above embodiment, in order to further implement the present invention better, the connecting portion 1 , the mounting seat 2 and the encapsulating portion 3 are integrally formed, and the channel is flat and penetrates through the connecting portion 1 , The mounting seat 2 and the encapsulation part 3 . The flat design maximizes the sealing performance while satisfying the passage of the flexible circuit 4 . Preferably, the connecting portion 1 , the mounting seat 2 and the encapsulating portion 3 are all made of POM material, which has the advantages of good temperature resistance, corrosion resistance and mechanical strength.

Example 5:

On the basis of the above embodiment, in order to further implement the present invention better, a silicone seal is provided at the position where the left end of the connector 1 and the flexible circuit 4 cooperate. Preferably, a silicone seal is provided at the joint between the encapsulation portion 3 and the signal transmission line 5 . With silicone sealing, the sealing performance can be greatly improved.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. The scope of the invention should be included in the scope of the claims and description of the present invention.

Claims (9)

1. A temperature and pressure compensation device for a flow meter, characterized in that it comprises a connecting part (1), a mounting seat (2) and an encapsulation part (3) connected in sequence, and a temperature and pressure sensor is encapsulated in the encapsulation part (3) (7); the connecting portion (1) and the mounting seat (2) have a built-in channel, the temperature and pressure sensor (7) is connected with a flexible circuit (4), and the flexible circuit (4) passes through the channel in sequence Mounting seat (2) and connecting part (1). 2 . The temperature and pressure compensation device for a flow meter according to claim 1 , wherein a copper sheet connector ( 6 ) is provided at the end of the flexible circuit ( 4 ). 3 . 3. The temperature and pressure compensation device of the flow meter according to claim 2, characterized in that: it also comprises a signal transmission line extending from the right end of the encapsulation part (3) into the encapsulation part (3) and connected with the temperature and pressure sensor (7). (5). 4 . The temperature and pressure compensation device for a flow meter according to claim 3 , wherein the connecting portion ( 1 ) is cylindrical and provided with external threads for threaded connection. 5 . 5 . The temperature and pressure compensation device for a flow meter according to claim 4 , wherein the outer shape of the mounting seat ( 2 ) is a hexagonal prism, and the axis of the hexagonal prism coincides with the axis of the connecting portion ( 1 ). 6 . . 6 . The temperature and pressure compensation device for a flow meter according to claim 5 , wherein the connecting portion ( 1 ), the mounting seat ( 2 ) and the encapsulating portion ( 3 ) are integrally formed, and the passage is flat. 7 . and penetrates through the connecting portion (1), the mounting seat (2) and the encapsulating portion (3) in sequence. 7 . The temperature and pressure compensation device for a flow meter according to claim 6 , wherein a silicone seal is provided where the left end of the connecting head ( 1 ) and the flexible circuit ( 4 ) cooperate. 8 . 8 . The temperature and pressure compensation device for a flow meter according to claim 7 , wherein a silicone seal is provided at the joint between the encapsulation portion ( 3 ) and the signal transmission line ( 5 ). 9 . 9 . The temperature and pressure compensation device for a flow meter according to claim 1 , wherein the connecting portion ( 1 ), the mounting seat ( 2 ) and the packaging portion ( 3 ) are all made of POM material. 10 .

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