Intelligent gas ultrasonic flowmeter

Abstract

The invention discloses an intelligent gas ultrasonic flowmeter which comprises an intelligent flowmeter body, a detachable sealing connecting piece is arranged in the left side of the intelligent flowmeter body, two sealing pieces are arranged on the outer wall of the sealing connecting piece, and a detachable flow guide cover is arranged in the sealing connecting piece. And a filtering storage part is arranged on the right side of the flow guide cover, a filtering part is arranged in the filtering storage part, and a flow guide assembly is arranged in the filtering part. A separation piece made of a stainless steel net and a filtering piece made of a PTFE material are arranged in the filtering storage piece, moisture in gas can be effectively filtered, water spots are prevented from being attached to the ultrasonic generating head, the situation that the acoustic characteristics of the ultrasonic generating head are affected by the water spots is avoided, and therefore the emission efficiency and the propagation characteristics of ultrasonic waves are guaranteed; the measuring precision and stability of the flow meter are improved, the maintenance and replacement time caused by inaccurate measurement is shortened, and the continuity of gas conveying is ensured.

Description

Technical Field

[0001] The invention relates to the field of flow meters, in particular to an intelligent gas ultrasonic flow meter. Background Art

[0002] In the field of gas flow measurement, intelligent gas ultrasonic flowmeters have attracted much attention because they can accurately measure gas velocity and flow based on the time difference between the propagation of ultrasonic waves in the gas in the downstream and upstream directions. However, in practical applications, the moisture that may exist in the gas will have an adverse effect on the measurement accuracy and stability of the flowmeter.

[0003] When moisture in the gas adheres to the ultrasonic generator, it will change the acoustic properties of the ultrasonic generator. The presence of water may cause changes in acoustic impedance, weaken the intensity of the emitted ultrasonic waves, distort the waveform, etc., thereby affecting the measurement accuracy and stability of the ultrasonic flowmeter. If the ultrasonic flowmeter has inaccurate measurements, it will take a lot of time to maintain and replace it, seriously affecting the gas transportation efficiency. Therefore, a technical solution is needed that can effectively filter moisture in the gas and prevent water stains from adhering to the ultrasonic generator to improve the measurement accuracy and stability of the intelligent gas ultrasonic flowmeter. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide an intelligent gas ultrasonic flow meter.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an intelligent gas ultrasonic flowmeter, including an intelligent flowmeter, a detachable sealing connector is arranged inside the left side of the intelligent flowmeter, the sealing connector is connected to the intelligent flowmeter through a fixing part, the outer wall of the sealing connector is provided with two sealing parts, the outer walls of the two sealing parts are fitted with the inner wall of the intelligent flowmeter connecting pipe, a detachable flow guide cover is arranged inside the sealing connector, a filter storage part is arranged on the right side of the flow guide cover, a filter part is arranged inside the filter storage part, a flow guide component is arranged inside the filter part, and the bottom end of the flow guide component is connected to the intelligent flowmeter.

[0006] Preferably, a sealing gasket is provided on the outer wall of the sealing connector, and an annular groove for installing the sealing member is provided on the outer wall of the sealing connector.

[0007] Preferably, the air guide cover and the sealing connector are installed and limited by a ring plate, and the air guide cover is conical, and a sealing gasket is provided at the connection between the air guide cover and the sealing connector.

[0008] Preferably, the filter storage element comprises a filter element housing, the filter element housing is threadedly arranged inside the right side of the air guide cover, and a separation element is arranged inside the filter element housing.

[0009] Preferably, the separator is made of a stainless steel mesh, and the space formed between the separator and the filter housing is used to provide gas flow.

[0010] Preferably, the flow guide component comprises a conduit, the conduit is arranged inside the filter element, a mounting connector is arranged at the bottom end of the conduit, and a detachable collecting element is arranged at the bottom end of the mounting connector.

[0011] Preferably, a stainless steel mesh is provided at a part of the conduit, and an outer wall of the mounting connector is provided with an external thread, which is connected to the intelligent flow meter via the external thread.

[0012] Preferably, the collecting piece is made of PC material, and the collecting piece is threadedly connected to the mounting connector, and a through hole is provided inside the mounting connector.

[0013] The beneficial effects of the present invention are:

[0014] 1. A detachable sealing connector is set on the left side of the intelligent flow meter. The sealing effect of the connection with the gas pipeline is ensured by the sealing gasket and the fixing parts to prevent gas leakage and improve the stability and safety of the flow meter.

[0015] 2. A detachable conical guide cover is arranged inside the sealing connector, which can centrally transport and pressurize the gas, thereby improving the gas transport efficiency. At the same time, the sealing performance is ensured by the sealing gasket at the connection between the guide cover and the sealing connector.

[0016] 3. A separation element made of stainless steel mesh and a filter element made of PTFE are arranged in the filter storage element, which can effectively filter the moisture in the gas and prevent water stains from adhering to the ultrasonic generator head, thereby avoiding the influence of water stains on the acoustic characteristics of the ultrasonic generator head, thereby ensuring the emission efficiency and propagation characteristics of the ultrasonic wave, improving the measurement accuracy and stability of the flow meter, reducing the maintenance and replacement time due to inaccurate measurement, and ensuring the continuity of gas delivery.

[0017] 4. A flow guide component is set inside the filter element. When the filter element absorbs more water, the water will enter the conduit and flow into the collecting element. The collecting element can be used to check whether the filter element needs to be replaced, which is convenient for timely maintenance and ensures the normal operation of the flow meter. A stainless steel mesh is set in some parts of the conduit to facilitate the installation and disassembly of the filter element. The installation connector and the collecting element are threadedly connected to facilitate the disassembly and inspection of the collecting element. The collecting element is made of PC material with low cost and good durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention.

[0019] Figure 2 yes Figure 1Structural details of the left-hand internal component connections.

[0020] Figure 3 yes Figure 2 Detailed view of the connection structure between the middle sealing connector and the air guide cover.

[0021] Figure 4 yes Figure 2 Structural details of the filter storage unit, filter element and flow guide assembly.

[0022] Figure 5 yes Figure 1 Front view section connection structure details.

[0023] Figure 6 yes Figure 5 Partial top view and section connection structure details.

[0024] Figure 7 yes Figure 1 Left view section connection structure details.

[0025] Figure 8 yes Figure 2 Detailed view of the left side connection structure of the middle sealing connector and the air guide cover.

[0026] Fig. 9 yes Figure 5 A magnified detail of the connection structure at position A in the middle.

[0027] Explanation of the accompanying drawings: 1. Intelligent flow meter, 2. Sealing connector, 3. Fixing part, 4. Sealing part, 5. Guide cover, 6. Filter housing, 7. Separating part, 8. Filter, 9. Conduit, 10. Mounting connector, 11. Collecting part. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with specific embodiments, and it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

[0029] See also Figure 1-Figure 9 It is a structural schematic diagram of the present invention, an intelligent gas ultrasonic flowmeter, including an intelligent flowmeter 1, which measures the gas flow rate based on the time difference between the propagation of ultrasonic waves in the gas in the downstream and upstream directions. When the gas in the pipeline is stationary, the propagation time of ultrasonic waves in the upstream and downstream directions is the same. When the gas flows, the propagation speed of ultrasonic waves in the downstream direction will increase, and the propagation speed in the upstream direction will slow down. By measuring the time difference in these two situations, combined with parameters such as the geometric dimensions of the pipeline, the gas flow rate can be calculated, and then the gas flow rate can be obtained.

[0030] A detachable sealing connector 2 is provided inside the left side of the smart flow meter 1, and the sealing connector 2 can be installed and removed from the smart flow meter 1. A sealing gasket is provided on the outer wall of the sealing connector 2, and an annular groove for installing a seal 4 is provided on the outer wall of the sealing connector 2. After connection, when the smart flow meter 1 is connected to the gas pipeline, the sealing gasket on the sealing connector 2 can be used to increase the sealing effect of the connection. The sealing connector 2 is connected to the smart flow meter 1 through the fixing part 3, and the sealing connector 2 can be installed and removed from the smart flow meter 1 through the fixing part 3. Two seals 4 are provided on the outer wall of the sealing connector 2, and the outer walls of the two seals 4 are in contact with the inner wall of the connecting pipe of the smart flow meter 1. The seal 4 is used to provide sealing work for the installation of the sealing connector 2 and the smart flow meter 1.

[0031] It should be noted that a detachable flow guide hood 5 is provided inside the sealing connector 2, and the flow guide hood 5 can be installed and removed from the sealing connector 2. The flow guide hood 5 is used to centrally transport the gas entering the sealing connector 2 to the inside of the filter storage component. The flow guide hood 5 and the sealing connector 2 are installed and limited by a ring plate, and the flow guide hood 5 is set in a cone shape. A sealing gasket is provided at the connection between the flow guide hood 5 and the sealing connector 2. Since the flow guide hood 5 is set in a cone shape, pressurization is performed while conveying, and the pressurized gas enters the interior of the filter component 8 through the filter storage component. The moisture in the gas is filtered and separated by the filter component 8, so that when the gas passes through the ultrasonic generating head position, the moisture adhesion to the generating head is reduced, and water stains can be prevented from adhering to the generating head. If water stains remain on the surface of the ultrasonic generating head or enter its internal structure, the acoustic characteristics of the ultrasonic generating head will be changed, and the water The existence of may cause changes in acoustic impedance, affecting the emission efficiency and propagation characteristics of ultrasonic waves, causing the intensity of the emitted ultrasonic waves to weaken and the waveform to be distorted, thereby affecting the measurement accuracy and stability of the ultrasonic flowmeter. If the ultrasonic flowmeter has inaccurate measurements, a lot of time will be spent on maintenance and replacement, affecting the gas transportation. A filter storage component is provided on the right side of the filter element 8 guide cover 5. The filter storage component is used to provide installation space and filtering space for the filter element 8. A filter element 8 is provided inside the filter storage component. The filter element 8 is made of PTFE material. The filter element 8 is used to filter the gas containing moisture. A guide component is provided inside the filter element 8. When the filter element 8 filters and absorbs more moisture, water will enter the guide component. The guide component is used to check whether the filter element 8 is replaced. The bottom end of the guide component is connected to the intelligent flowmeter 1.

[0032] Specifically, the filter storage component includes a filter housing 6, which is threadedly arranged inside the right side of the guide cover 5. The filter housing 6 can be installed into the interior of the intelligent flow meter 1 through the guide cover 5. A separator 7 is arranged inside the filter housing 6. The separator 7 is used to provide an installation position for the filter 8 and ensure that the gas containing moisture enters the interior of the filter 8. The separator 7 is made of stainless steel mesh, and the space formed between the separator 7 and the filter housing 6 is used to provide gas flow.

[0033] More specifically, the flow guide component includes a conduit 9, which is arranged inside the filter element 8. The filter element 8 can be installed and removed from the outer wall of the conduit 9. A stainless steel mesh is arranged at a part of the conduit 9. The filter element 8 is inserted into the interior of the separator 7 through the conduit 9. At the same time, when more water is adsorbed inside the filter element 8, the water will enter the interior of the conduit 9 and enter the interior of the collecting element 11 through the conduit 9. A mounting connector 10 is arranged at the bottom end of the conduit 9. The outer wall of the mounting connector 10 is arranged with an external thread, which is connected to the intelligent flow meter 1 through the external thread. The mounting connector 10 is fixed after the conduit 9 is installed. A detachable collecting element 11 is arranged at the bottom end of the mounting connector 10. The collecting element 11 can store and check the water entering the conduit 9. The collecting element 11 is made of PC material, and the collecting element 11 is threadedly connected to the mounting connector 10. A through hole is arranged inside the mounting connector 10.

[0034] When the present invention is in use, the deflector 5 is first inserted and installed into the interior of the sealing connector 2 through the limiting ring plate. After installation, the filter housing 6 is threadedly installed into the right interior of the deflector 5. After installation, the sealing connector 2, the deflector 5 and the filter housing 6 are inserted into the left interior of the intelligent flow meter 1. After insertion, the sealing connector 2 is fixed to the intelligent flow meter 1 through the fixing member 3. After installation, the opening position of the separating member 7 is set downward inside the intelligent flow meter 1. After fixation, the filter 8 is inserted into the outer wall of the conduit 9. After insertion, the filter 8 is inserted into the separating member 7 inside the filter housing 6 through the installing connector 10 and the conduit 9. After insertion, the installing connector 10 is rotated to connect and fix it with the intelligent flow meter 1. After connection, the intelligent flow meter 1 is connected to the gas pipeline.

[0035] When the gas is measured, the gas enters the interior of the intelligent flow meter 1 through the gas pipeline and is measured ultrasonically. Before the measurement, the gas enters the interior of the guide cover 5 through the sealing connector 2. Since the guide cover 5 is conically set, the gas is pressurized through the guide cover 5, and the pressurized gas enters the interior of the filter housing 6. After entering, the gas passes through the separator 7 and contacts the filter 8. During the contact process, the filter 8 filters and absorbs the moisture in the gas. The filtered gas passes through the filter 8 and enters the intelligent flow meter 1 from the bottom of the filter 8. After entering, the intelligent flow meter 1 performs detection.

[0036] When the filter element 8 needs to be replaced, when the filter element 8 is used for a long time, the inside of the filter element 8 will absorb more moisture, and the water will enter the through hole of the installation connector 10 through the conduit 9, and enter the inside of the collecting element 11 through the installation connector 10. When water is seen inside the collecting element 11, the filter element 8 can be replaced. When replacing, the gas pipeline valve is closed for a short time. After closing, the installation connector 10 is removed and the filter element 8 is pulled out. After replacement, the new filter element 8 is inserted into the inside of the separation element 7 and fixed by the installation connector 10. After replacement, the pipeline valve is opened. The replacement process is relatively simple, and the replacement time is relatively short, and it will not affect the gas transportation work.

Claims

1. An intelligent gas ultrasonic flow meter, comprising an intelligent flow meter (1), characterized in that: A detachable sealing connector (2) is provided inside the left side of the intelligent flow meter (1), and the sealing connector (2) is connected to the intelligent flow meter (1) via a fixing member (3). Two sealing members (4) are provided on the outer wall of the sealing connector (2), and the outer walls of the two sealing members (4) are in contact with the inner wall of the connecting pipe of the intelligent flow meter (1). A detachable flow guide cover (5) is provided inside the sealing connector (2), and a filter storage member is provided on the right side of the flow guide cover (5), and a filter member (8) is provided inside the filter storage member. A flow guide component is provided inside the filter member (8), and the bottom end of the flow guide component is connected to the intelligent flow meter (1).

2. The intelligent gas ultrasonic flowmeter according to claim 1, characterized in that: The outer wall of the sealing connection piece (2) is provided with a sealing gasket, and the outer wall of the sealing connection piece (2) is provided with an annular groove for installing a sealing piece (4).

3. The intelligent gas ultrasonic flowmeter according to claim 1, characterized in that: The air guide cover (5) and the sealing connection piece (2) are installed and limited by a ring plate, and the air guide cover (5) is arranged in a conical shape. A sealing gasket is arranged at the connection between the air guide cover (5) and the sealing connection piece (2).

4. The intelligent gas ultrasonic flowmeter according to claim 1 is characterized in that: The filter storage element comprises a filter element housing (6), the filter element housing (6) is threadedly arranged inside the right side of the air guide cover (5), and a separation element (7) is arranged inside the filter element housing (6).

5. The intelligent gas ultrasonic flowmeter according to claim 4 is characterized in that: The separation element (7) is made of a stainless steel mesh, and the space formed between the separation element (7) and the filter element housing (6) is used to provide gas flow.

6. The intelligent gas ultrasonic flowmeter according to claim 1, characterized in that: The flow guide component comprises a conduit (9), the conduit (9) is arranged inside the filter element (8), a mounting connector (10) is arranged at the bottom end of the conduit (9), and a detachable collecting element (11) is arranged at the bottom end of the mounting connector (10).

7. The intelligent gas ultrasonic flowmeter according to claim 6 is characterized in that: A stainless steel mesh is provided at a portion of the conduit (9), and an outer wall of the mounting connector (10) is provided with an external thread, which is connected to the intelligent flow meter (1) via the external thread.

8. The intelligent gas ultrasonic flow meter according to claim 6 is characterized in that: The collecting piece (11) is made of PC material, and the collecting piece (11) is threadedly connected to the mounting connecting piece (10), and a through hole is provided inside the mounting connecting piece (10).

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