Flow monitoring device

Abstract

The utility model provides a flow monitoring device, and relates to the technical field of pipelines. The flow monitoring device comprises an ultrasonic flowmeter and a pressure monitoring mechanism, wherein a mounting channel communicated with the interior of the ultrasonic flowmeter is arranged on a shell of the ultrasonic flowmeter; the pressure monitoring mechanism is detachably connected to the mounting channel through a connecting piece, and the relative position of a pressure sensor and an ultrasonic flowmeter in the pressure monitoring mechanism is changed by changing the relative position of the pressure monitoring mechanism and the mounting channel. According to the flow monitoring device, the disassembly and assembly convenience of the pressure monitoring mechanism can be improved, and the monitoring accuracy of the pressure monitoring mechanism can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a flow monitoring device. Background Art

[0002] Ultrasonic gas meters are widely used because they have higher measurement accuracy, better reliability, and less pressure loss than traditional diaphragm gas meters. Ultrasonic gas meter products usually perform self-calibration of the zero point regularly to ensure the long-term stability of the measurement accuracy. When performing zero point self-calibration, the ultrasonic gas meter must ensure that the medium in the gas pipeline is in a stagnant state, so the ultrasonic gas meter needs to have the function of accurately determining the flow state of the medium in the pipeline.

[0003] Existing ultrasonic gas meters generally have a pressure sensor installed in the pipeline, and the flow state of the medium in the pipeline is determined by the pressure result fed back by the pressure sensor. However, the pressure sensor is currently installed in the ultrasonic gas meter and the position of the pressure sensor is fixed, which makes it difficult to disassemble and install the pressure sensor. Utility Model Content

[0004] The purpose of the utility model is to provide a flow monitoring device, which can improve the convenience of disassembly and assembly of a pressure monitoring mechanism and can improve the monitoring accuracy of the pressure monitoring mechanism.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Flow monitoring device, comprising:

[0007] An ultrasonic flow meter, wherein a housing of the ultrasonic flow meter is provided with a mounting channel communicating with the interior of the ultrasonic flow meter;

[0008] A pressure monitoring mechanism is detachably connected to the installation channel via a connecting piece, and the relative position of the pressure sensor in the pressure monitoring mechanism and the ultrasonic flow meter is changed by changing the relative position of the pressure monitoring mechanism and the installation channel.

[0009] As a further technical solution, the connecting member is configured as a first thread, and a second thread is correspondingly configured on the inner wall of the installation channel, and the pressure monitoring mechanism is connected to the installation channel by connecting the first thread with the second thread.

[0010] As a further technical solution, the connecting member is configured as a first clamping member, and correspondingly, a plurality of second clamping members are spaced apart on the inner wall of the installation channel along its depth direction, and the first clamping member is clamped with at least one of the second clamping members.

[0011] As a further technical solution, the pressure monitoring mechanism also includes a shell assembly, the pressure sensor is installed in the shell assembly, the connecting piece is arranged on the shell assembly, a connecting channel is arranged on the shell assembly, and when the shell assembly is connected to the installation channel, the connecting channel is communicated with the installation channel.

[0012] As a further technical solution, the shell assembly includes an upper cover and a lower cover, the upper cover is connected to the lower cover to form a accommodating space, the pressure sensor is installed in the accommodating space, the connecting channel is arranged in the lower cover, and the accommodating space is connected to the installation channel through the connecting channel.

[0013] As a further technical solution, a connecting column is provided on the side wall of the lower cover, the connecting column extends in a direction away from the upper cover, the connecting channel is provided in the middle of the connecting column, and the connecting piece is provided on the outer wall of the connecting column.

[0014] As a further technical solution, the end surfaces of the upper cover or the lower cover that are close to each other are provided with auxiliary connecting parts, and the upper cover is connected to the lower cover through the auxiliary connecting parts.

[0015] As a further technical solution, the housing assembly further includes a pressure cover, which is disposed outside the accommodating space and abuts against a side of the pressure sensor that is away from the lower cover.

[0016] As a further technical solution, the shell assembly also includes a wire pressing piece, and a wire outlet channel is provided on the side wall of the upper cover. The line of the pressure sensor extends out into the accommodating space through the wire outlet channel, and the wire pressing piece is arranged in the wire outlet channel.

[0017] As a further technical solution, the housing assembly further includes a plurality of seals, and the plurality of seals are respectively arranged in the housing assembly and between the pressure sensor and the housing assembly.

[0018] Compared with the prior art, the flow monitoring device provided by the utility model has the following technical advantages:

[0019] Since the pressure monitoring mechanism is connected to the installation channel, during the use of the flow monitoring device, the relative position of the pressure monitoring mechanism in the installation channel can be changed according to the actual flow rate, thereby changing the distance between the pressure sensor and the ultrasonic flow meter, so as to achieve the purpose of improving the accuracy of the pressure sensor detection result. At the same time, since the pressure monitoring mechanism is detachably connected to the installation channel through a connector, the pressure monitoring mechanism and the ultrasonic flow meter can be quickly installed or disassembled through the cooperation of the connector and the installation channel, which ensures the use effect of the pressure monitoring mechanism while improving the convenience of disassembly and assembly of the pressure monitoring mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a cross-sectional view of a flow monitoring device provided by an embodiment of the utility model;

[0021] Figure 2 It is a cross-sectional view of a pressure monitoring mechanism in a flow monitoring device provided in an embodiment of the utility model.

[0022] In the figure:

[0023] 100. Ultrasonic flow meter; 110. Installation channel;

[0024] 200, pressure monitoring mechanism; 210, pressure sensor; 220, housing assembly; 2201, connecting channel; 221, upper cover; 2211, wire outlet channel; 222, lower cover; 2221, connecting column; 2222, auxiliary connecting part; 223, pressure cover; 224, wire pressing part; 225, sealing part; 226, rubber ring. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0029] Combination Figure 1 and Figure 2 As shown, the flow monitoring device is used to monitor the flow of gas in the gas pipeline. Specifically, the flow monitoring device includes: an ultrasonic flow meter 100 and a pressure monitoring mechanism 200. The housing of the ultrasonic flow meter 100 is provided with a mounting channel 110 connected to the inside of the ultrasonic flow meter 100; the pressure monitoring mechanism 200 is detachably connected to the mounting channel 110 through a connector (not shown in the figure), and the relative position of the pressure sensor 210 in the pressure monitoring mechanism 200 and the ultrasonic flow meter 100 is changed by changing the relative position of the pressure monitoring mechanism 200 and the mounting channel 110.

[0030] Since the pressure monitoring mechanism 200 is connected to the installation channel 110, during the use of the flow monitoring device, the relative position of the pressure monitoring mechanism 200 in the installation channel 110 can be changed according to the actual flow rate, thereby changing the distance between the pressure sensor 210 and the ultrasonic flow meter 100, so as to achieve the purpose of improving the accuracy of the detection result of the pressure sensor 210. At the same time, since the pressure monitoring mechanism 200 is detachably connected to the installation channel 110 through a connecting piece, the pressure monitoring mechanism 200 and the ultrasonic flow meter 100 can be quickly installed or disassembled through the cooperation of the connecting piece and the installation channel 110, thereby ensuring the use effect of the pressure monitoring mechanism 200 and improving the convenience of disassembly and assembly of the pressure monitoring mechanism 200.

[0031] In addition, pressure monitoring mechanisms 200 of different specifications may be installed in the installation channel 110 according to the actual flow rate, so as to ensure the accuracy of the overall detection result of the flow monitoring device and improve the application scope of the flow monitoring device.

[0032] Preferably, the connector is provided with a first thread, and a second thread is correspondingly provided on the inner wall of the installation channel 110, and the pressure monitoring mechanism 200 is connected to the installation channel 110 by connecting the first thread with the second thread. During installation, the pressure monitoring mechanism 200 is aligned with the installation channel 110 and rotated, and the pressure monitoring mechanism 200 can be installed in the installation channel 110 by the first thread and the second thread being threaded together; during disassembly, the pressure monitoring mechanism 200 can be disassembled by rotating the pressure monitoring mechanism 200 in the opposite direction. During the whole process, while improving the convenience of disassembly and assembly of the pressure monitoring mechanism 200, the connection strength and connection stability of the pressure monitoring mechanism 200 after being connected to the installation channel 110 are ensured; and by rotating the pressure monitoring mechanism 200, the position of the threaded cooperation between the first thread and the second thread can be changed, and the distance between the pressure sensor 210 in the pressure monitoring mechanism 200 and the ultrasonic flowmeter 100 can be changed, thereby ensuring the accuracy of the monitoring results of the pressure sensor 210 under different flow rates.

[0033] In some other embodiments, the connecting member is set as a first clamping member, and correspondingly, a plurality of second clamping members are arranged at intervals on the inner wall of the installation channel 110 along its depth direction, and the first clamping member is clamped with at least one second clamping member. One of the first clamping member and the second clamping member is set as a clamping groove, and the other is set as a clamping protrusion; by clamping the first clamping member with the second clamping member at different positions in the installation channel 110, the distance between the pressure sensor 210 and the ultrasonic flowmeter 100 can be changed, thereby ensuring the accuracy of the monitoring results of the pressure sensor 210 under different flow rates. At the same time, the connection strength, connection stability and convenience of disassembly and assembly between the two are guaranteed.

[0034] Preferably, the pressure monitoring mechanism 200 further includes a housing assembly 220, the pressure sensor 210 is installed in the housing assembly 220, the connector is provided in the housing assembly 220, a connecting channel 2201 is provided on the housing assembly 220, and when the housing assembly 220 is connected to the mounting channel 110, the connecting channel 2201 is communicated with the mounting channel 110. The housing assembly 220 provides protection and support for the pressure sensor 210, and during use, it prevents the pressure sensor 210 from being damaged by foreign objects, thereby affecting the monitoring effect of the pressure sensor 210, and at the same time prolongs the service life of the pressure sensor 210 provided in the housing assembly.

[0035] Specifically, the housing assembly 220 includes an upper cover 221 and a lower cover 222. The upper cover 221 is connected to the lower cover 222 to form a receiving space. The pressure sensor 210 is installed in the receiving space. The connecting channel 2201 is provided in the lower cover 222. The receiving space is connected to the installation channel 110 through the connecting channel 2201. The convenience of installing the pressure sensor 210 in the receiving space is improved by the connection mode of the upper cover 221 and the lower cover 222. Moreover, according to actual needs, pressure sensors 210 of different specifications can be placed in the receiving space without replacing the entire pressure monitoring mechanism 200, so that the detection range of the pressure monitoring mechanism 200 can be changed, thereby improving the application range of the pressure monitoring mechanism 200. The connecting channel 2201 is arranged on the lower cover 222. When the pressure monitoring mechanism 200 is installed in connection with the installation channel 110, the accommodating space is connected with the installation channel 110 through the connecting channel 2201, that is, the pressure sensor 210 arranged in the accommodating space is directly connected with the ultrasonic flowmeter 100 through the connecting channel 2201, which ensures the convenience of disassembly and assembly of the pressure sensor 210 while further improving the monitoring accuracy of the pressure sensor 210.

[0036] Preferably, a connecting column 2221 is provided on the side wall of the lower cover 222 , the connecting column 2221 extends in a direction away from the upper cover 221 , the connecting channel 2201 is provided in the middle of the connecting column 2221 , and the connecting piece is provided on the outer wall of the connecting column 2221 .

[0037] Combination Figure 1 and Figure 2 As shown, in this embodiment, the connecting column 2221 is arranged on the end surface of the lower cover 222 away from the upper cover 221, and extends in a direction away from the upper cover 221. The connecting member cooperates with the installation channel 110 to connect the connecting column 2221 to the installation channel 110 to ensure the connection strength and connection stability; at the same time, the connecting channel 2201 is connected to the ultrasonic flow meter 100 to improve the detection accuracy.

[0038] In some other embodiments, the connecting column 2221 is disposed on any side wall of the lower cover 222, the connecting piece is disposed on the outer wall of the connecting column 2221, and an auxiliary part having the connecting channel 2201 is separately disposed. Alternatively, the lower cover 222 may be configured as a barrel, the connecting piece is directly disposed on the outer peripheral wall of the lower cover 222, the connecting channel 2201 is disposed on the bottom wall of the lower cover 222, and the lower cover 222 is directly connected to the installation channel 110 during installation.

[0039] Preferably, the end surfaces of the upper cover 221 or the lower cover 222 that are close to each other are provided with auxiliary connecting parts 2222, and the upper cover 221 is connected to the lower cover 222 through the auxiliary connecting parts 2222. Figure 2As shown, in this embodiment, the auxiliary connection part 2222 is arranged on the end surface of the lower cover 222 close to the upper cover 221, and the auxiliary connection part 2222 extends along the axial direction of the lower cover 222; when the upper cover 221 is connected to the lower cover 222, the auxiliary connection part 2222 plays a guiding role, and after the upper cover 221 is connected to the lower cover 222, the inner wall of the upper cover 221 abuts against the outer peripheral wall of the auxiliary connection part 2222, thereby further improving the connection stability between the upper cover 221 and the lower cover 222.

[0040] Preferably, the housing assembly 220 further includes a wire pressing piece 224 , a wire outlet channel 2211 is provided on the side wall of the upper cover 221 , the line of the pressure sensor 210 extends out of the accommodating space through the wire outlet channel 2211 , and the wire pressing piece 224 is provided in the wire outlet channel 2211 .

[0041] Specific combination Figure 2 As shown, an outlet column is provided on the side wall of the upper cover 221 facing away from the lower cover 222, and a channel is provided in the outlet column and is connected with the accommodating space. The line of the pressure sensor 210 extends out of the accommodating space through the outlet channel 2211. The wire pressing piece 224 is arranged in a ring shape and is installed on the outlet channel 2211. An annular rubber ring 226 is arranged between the wire pressing piece 224 and the outlet channel 2211. The wire pressing piece 224 and the rubber ring 226 cooperate with each other to converge and fix the line of the pressure sensor 210, so as to avoid problems such as line knotting and displacement, which affect the use effect of the pressure sensor 210.

[0042] Preferably, the housing assembly 220 further includes a gland 223, which is disposed in the accommodation space and abuts against the side of the pressure sensor 210 away from the lower cover 222. The gland 223 is configured in an annular shape and abuts against the side of the pressure sensor 210 away from the lower cover 222, thereby limiting the position of the pressure sensor 210 in the accommodation space and preventing the pressure sensor 210 from shifting or shaking in the accommodation space, thereby further ensuring the monitoring effect of the pressure sensor 210. At the same time, the gland 223 configured in an annular shape can avoid interference with the circuit of the pressure sensor 210.

[0043] Preferably, the housing assembly 220 further includes a plurality of seals 225 , and the plurality of seals 225 are respectively disposed in the housing assembly 220 and between the pressure sensor 210 and the housing assembly 220 .

[0044] Specifically, the sealing members 225 are all configured as rubber sealing rings; Figure 1 and Figure 2As shown, in this embodiment, rubber sealing rings are arranged between the upper cover 221 and the lower cover 222, between the inner wall of the lower cover 222 and the pressure sensor 210, and between the connecting column 2221 and the installation channel 110, so as to ensure that the pressure monitoring mechanism 200 can reach the protection level of IP65 (completely prevent dust from entering and no harm when flushed with water). In addition, in order to further improve the use effect of the rubber sealing ring, a plurality of installation grooves are correspondingly arranged on the housing assembly 220, and the rubber sealing rings are arranged in the corresponding installation grooves.

[0045] The flow monitoring device provided in this embodiment can be used not only for monitoring the gas flow in the gas pipeline, but also for monitoring the water flow in the drainage pipeline, monitoring the oil flow in the oil field pipeline, etc.

[0046] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A flow monitoring device, characterized in that: include: An ultrasonic flow meter (100), wherein a housing of the ultrasonic flow meter (100) is provided with a mounting channel (110) communicating with the interior of the ultrasonic flow meter (100); A pressure monitoring mechanism (200) is detachably connected to the installation channel (110) via a connecting piece, and the relative position of a pressure sensor (210) in the pressure monitoring mechanism (200) and the ultrasonic flow meter (100) is changed by changing the relative position of the pressure monitoring mechanism (200) and the installation channel (110).

2. The flow monitoring device according to claim 1, characterized in that: The connecting piece is provided with a first thread, and a second thread is correspondingly provided on the inner wall of the installation channel (110), and the pressure monitoring mechanism (200) is connected to the installation channel (110) by connecting the first thread with the second thread.

3. The flow monitoring device according to claim 1, characterized in that: The connecting member is configured as a first clamping member, and correspondingly, a plurality of second clamping members are spaced apart on the inner wall of the installation channel (110) along its depth direction, and the first clamping member is clamped with at least one of the second clamping members.

4. The flow monitoring device according to claim 1, characterized in that: The pressure monitoring mechanism (200) further comprises a housing assembly (220), the pressure sensor (210) being installed in the housing assembly (220), the connecting member being arranged on the housing assembly (220), the housing assembly (220) being provided with a connecting channel (2201), and when the housing assembly (220) is connected to the mounting channel (110), the connecting channel (2201) is in communication with the mounting channel (110).

5. The flow monitoring device according to claim 4, characterized in that: The housing assembly (220) comprises an upper cover (221) and a lower cover (222); the upper cover (221) is connected to the lower cover (222) to form a receiving space; the pressure sensor (210) is installed in the receiving space; the connecting channel (2201) is provided on the lower cover (222); and the receiving space is connected to the mounting channel (110) through the connecting channel (2201).

6. The flow monitoring device according to claim 5, characterized in that: A connecting column (2221) is provided on the side wall of the lower cover (222), and the connecting column (2221) extends in a direction away from the upper cover (221). The connecting channel (2201) is provided in the middle of the connecting column (2221), and the connecting piece is provided on the outer wall of the connecting column (2221).

7. The flow monitoring device according to claim 5, characterized in that: An auxiliary connection portion (2222) is provided on the end surfaces of the upper cover (221) or the lower cover (222) that are close to each other, and the upper cover (221) is connected to the lower cover (222) via the auxiliary connection portion (2222).

8. The flow monitoring device according to claim 5, characterized in that: The housing assembly (220) further comprises a pressure cover (223), wherein the pressure cover (223) is arranged in the accommodating space and abuts against a side of the pressure sensor (210) facing away from the lower cover (222).

9. The flow monitoring device according to claim 8, characterized in that: The housing assembly (220) further comprises a wire pressing member (224); a wire outlet channel (2211) is provided on the side wall of the upper cover (221); a line of the pressure sensor (210) extends out of the accommodation space through the wire outlet channel (2211); and the wire pressing member (224) is provided in the wire outlet channel (2211).

10. The flow monitoring device according to claim 4, characterized in that: The housing component (220) further comprises a plurality of sealing members (225), wherein the plurality of sealing members (225) are respectively arranged in the housing component (220) and between the pressure sensor (210) and the housing component (220).

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