Opposite-emission plug-in type ultrasonic flowmeter with cooling system
By introducing a gas cooling system into the ultrasonic flowmeter, the measurement problem of existing ultrasonic transducers at operating conditions above 150°C is solved, and stable and accurate measurement in high-temperature environments are achieved.
Patent Information
- Application Number
- CN202411469029.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-02-25
AI Technical Summary
The existing ultrasonic transducers cannot be suitable for high-temperature operating conditions above 150°C, resulting in the inability to perform effective measurement in a high-temperature environment.
A counter-injected ultrasonic flowmeter with cooling system is designed, and the ultrasonic transducer is dissipated by gas cooling technology, including counter-injected cooling transducer assembly, air-cooled system host and flowmeter host, which is cooled through the ventilation space between the air-cooled probe housing and the transducer probe.
It realizes effective metering under operating conditions above 150℃, ensures the stable performance and accurate metering of ultrasonic flowmeters in high temperature environments, and has the advantages of simple structure, easy maintenance and efficient heat dissipation.
Smart Images
Figure CN119509634A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of insertion type ultrasonic instruments and meters, in particular to a through-shooting insertion type ultrasonic flow meter with a cooling system. Background Art
[0002] As an industrial gas measuring instrument, industrial gas flowmeter has always been a weak link in the measurement industry. The main measuring instruments in the gas industry are orifice meters, vortex meters and pitot tube flowmeters, but these traditional instruments have the disadvantages of high requirements for measuring quality, frequent maintenance, high maintenance costs, low intelligence, and small range ratio. These weaknesses will restrict the development of the gas industry. Compared with differential pressure meters, volumetric meters and traditional velocity meters, gas ultrasonic flowmeters have the advantages of wide range ratio, intelligence, easy installation, low cost, high precision, wider measurement range, long service life, and low maintenance cost. Due to the limitation that the temperature resistance range of the main component probe used in the test is not high, the upper limit of the probe material is generally 100℃. For some gases with excessive temperatures (such as flue gas pipes and saturated steam, some of which even exceed 200℃), general gas ultrasonic flowmeters cannot measure, and ultrasonic transducers cannot withstand the high temperature of the test environment. The existing solution for testing flow in a high temperature environment is to use a Pitot tube flowmeter to measure flow. This solution cannot test small flow rates, and the Pitot tube flowmeter has low test accuracy and cannot achieve precise measurement of gas flow.
[0003] However, the measurement limit temperature of existing ultrasonic transducers is below 150°C. Higher temperatures will affect the life and test performance of ultrasonic transducers working in high-temperature environments. However, the operating temperature of more and more working environments is above 150°C, resulting in the inability of existing ultrasonic transducers to be used in high-temperature environments (above 150°C), and thus unable to meet customers' needs for accurate flow measurement under high-temperature conditions. Summary of the invention
[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a through-shooting insertion type ultrasonic flowmeter with a cooling system, which solves the problem that the existing ultrasonic transducer cannot be applied to working conditions above 150°C. It has a simple structure and is easy to maintain and replace, meeting the measurement needs in high temperature environments and the requirements for on-site flow test accuracy, and is conducive to large-scale promotion and use.
[0005] To achieve the above object, the present invention provides the following solutions: A through-beam insertion ultrasonic flowmeter with a cooling system comprises a through-beam cooling transducer assembly, an air cooling system host and a flowmeter host, wherein the air cooling system host and the flowmeter host are respectively connected to the through-beam cooling transducer assembly, and the through-beam cooling transducer assembly comprises a flange short tube ball valve combination, a through-beam air cooling transducer probe part assembly connected to the flange short tube ball valve combination, and a through-beam air cooling transducer assembly connected to the through-beam air cooling transducer probe part assembly.
[0006] Preferably, the opposing air-cooled transducer probe partial assembly includes an adapter, an air inlet pipe, an air-cooled probe housing, a transducer probe and an air outlet pipe. The adapter is connected to the air-cooled probe housing by 6 hexagon socket bolts. The air inlet pipe, the air-cooled probe housing and the transducer probe are connected by welding to form an integral structure. The part between the air-cooled probe housing and the transducer probe forms a ventilation space for effectively taking away heat, and the air outlet pipe and the air inlet pipe are respectively arranged at both ends of the air-cooled probe housing.
[0007] Preferably, an air inlet, an air outlet and a wire outlet are provided in the adapter, the air inlet, the air outlet and the wire outlet are independent of each other, and the bottom ends are respectively connected with high-temperature resistant fluororubber gaskets, and the high-temperature resistant fluororubber gasket is provided between the adapter and the air-cooled probe housing to seal the connection between the adapter and the air-cooled probe housing.
[0008] Preferably, a through hole is provided in the high temperature resistant fluororubber gasket, the through hole corresponding to the air inlet is connected to the air inlet pipe, and the air outlet and the corresponding through hole are both connected to the ventilation space between the air-cooled probe housing and the transducer probe.
[0009] Preferably, the air inlet and the air outlet are both connected to the opposing air-cooled transducer assembly, and the opposing air-cooled transducer assembly includes a switching device, a probe steel pipe and an air outlet steel pipe connected to the switching device, an air inlet steel pipe arranged in the switching device and the probe steel pipe, and an opposing flange installed on the probe steel pipe, one end of the probe steel pipe and one end of the air outlet steel pipe are respectively connected to the switching device by fastening bolts, the other end of the probe steel pipe is connected to the air inlet, and the other end of the air outlet steel pipe is connected to the air outlet.
[0010] Preferably, the adapter device is provided with an adapter air inlet, an adapter air outlet and an adapter wire outlet hole, the adapter air inlet is connected to the air cooling system main unit, the adapter wire outlet is connected to the flow meter main unit, the adapter air outlet is connected to an external silencer, the adapter air inlet is communicated with the air inlet, the adapter air outlet is communicated with the air outlet, and the adapter wire outlet is communicated with the wire outlet.
[0011] Preferably, the adapter air inlet and the adapter air outlet are both quick-connect interfaces, and the adapter wire outlet is a straight-out type.
[0012] Preferably, the air inlet steel pipe is a seamless ventilation steel pipe, one end of which is connected with a threaded ferrule and the other end is provided with a ferrule joint.
[0013] Preferably, an air separation filter device is provided between the air cooling system main unit and the opposing air cooling transducer assembly, one end of the air separation filter device is connected to the air cooling system main unit, and the other end of the air separation filter device is connected to the transfer air inlet of the transfer device.
[0014] Preferably, the flange short tube ball valve combination consists of a flange welded short tube and a ball valve, one end of the flange welded short tube is welded to the high-temperature pipeline to be measured, the other end of the flange welded short tube is connected to one end of the ball valve by bolts, and the other end of the ball valve is connected to the opposing flange.
[0015] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: (1) The through-beam insertion ultrasonic flowmeter with cooling system provided by the present invention solves the problem that the existing ultrasonic transducer cannot be applied to working conditions above 150°C. It has a simple structure and is easy to repair and replace, meeting the measurement needs in high temperature environments and the requirements for flow accuracy in on-site tests.
[0016] (2) The present invention adopts gas cooling technology, which can dissipate heat for the ultrasonic transducer more efficiently, ensuring its use in large-diameter pipelines under ultra-high temperature conditions. The ultrasonic flow meter is more suitable for high-temperature working conditions. At the same time, it can also accurately measure the gas flow rate and maintain long-term stable measurement of gas flow rate under high temperature conditions. It has multiple advantages such as simple structure, easy maintenance and efficient heat dissipation, and is suitable for large-scale promotion and application.
[0017] (3) The through-beam insertion type ultrasonic flow meter provided by the present invention can not only be used for measurement in ultra-high temperature gas pipelines, but also can be applied to the precise measurement of high temperature gas flow such as water vapor, so as to solve the problem that gas flow is difficult to measure under high temperature conditions; at the same time, the through-beam insertion type ultrasonic flow meter can not only be cooled by gas, but also by liquid, so as to achieve wide application. In the use environment of flammable and explosive gases, inert gas cooling is required. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0019] Figure 1 A schematic structural diagram of a through-injection ultrasonic flowmeter assembly with a cooling system provided in Embodiment 1 of the present invention; Figure 2 This is a plan view of the installation and testing of the through-injection ultrasonic flowmeter assembly with a cooling system provided in the first embodiment of the present invention; Figure 3 A schematic diagram of the structure of a partial assembly of a counter-radiation air-cooled transducer probe provided in Embodiment 1 of the present invention; Figure 4 This is a schematic structural diagram of the opposed-radiation air-cooled transducer assembly provided in Embodiment 1 of the present invention.
[0020] Description of reference numerals: 1. Opposed air-cooled transducer assembly; 101. Adapter; 102. High-temperature resistant fluororubber gasket; 103. Inlet pipe; 104. Air-cooled probe housing; 105. Transducer probe; 106. Hexagon socket bolt; 107. Outlet pipe; 108. Inlet port; 109. Outlet port; 1010. Outlet port; 1011. Opposed flange; 1012. Inlet steel pipe; 1013. Outlet steel pipe; 1014. Probe steel pipe; 1015. Fastening bolts; 1016. Adapter; 1017. Flange short-tube ball valve assembly; 2. High-temperature pipeline to be measured; 3. Flowmeter host; 4. Air-cooled system host; 5. Gas distribution and filtering device. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] Embodiment 1 like Figure 1As shown, the present invention provides a through-beam insertion ultrasonic flowmeter with a cooling system, including a through-beam cooling transducer assembly, an air cooling system host 4 and a flowmeter host 3, the air cooling system host 4 and the flowmeter host 3 are respectively connected to the through-beam cooling transducer assembly, the through-beam cooling transducer assembly includes a flange short tube ball valve combination 1017, a through-beam air-cooled transducer probe 105 partial assembly connected to the flange short tube ball valve combination 1017, and a through-beam air-cooled transducer assembly 1 connected to the through-beam air-cooled transducer probe 105 partial assembly.
[0024] Among them, refer to Figure 3 The assembly of the air-cooled transducer probe 105 includes an adapter 101, an air inlet pipe 103, an air-cooled probe housing 104, a transducer probe 105 and an air outlet pipe 107. The adapter 101 is connected to the air-cooled probe housing 104 by six hexagon socket bolts 106 to ensure the stability of the structure. The air inlet pipe 103, the air-cooled probe housing 104 and the transducer probe 105 are connected by welding to form an integral structure. The part between the air-cooled probe housing 104 and the transducer probe 105 forms a ventilation space for effectively taking away heat. The air outlet pipe 107 and the air inlet pipe 103 are respectively arranged at both ends of the air-cooled probe housing 104, so that the gas can stay outside the transducer probe 105 to the greatest extent and take away more heat, thereby fully cooling the transducer probe 105. The adapter 101 is provided with an air inlet 108, an air outlet 109 and a line outlet 1010, and the line outlet 1010 is connected to the flow meter host to ensure signal transmission. The air inlet 108, the air outlet 109 and the line outlet 1010 are independent of each other, and the bottom ends are respectively connected with high temperature resistant fluororubber gaskets 102, which are arranged between the adapter 101 and the air-cooled probe housing 104, and are used to seal the connection between the adapter 101 and the air-cooled probe housing 104. A through hole is provided in the high temperature resistant fluororubber gasket 102, and the through hole corresponding to the air inlet 108 is connected to the air inlet pipe 103, and the two through holes corresponding to the air outlet 109 and the line outlet 1010 are both connected to the ventilation space between the air-cooled probe housing 104 and the transducer probe 105.
[0025] Based on the above content, the internal implementation principle of the partial assembly of the air-cooled transducer probe 105 is as follows: the cooling gas enters the air path set inside the adapter 101 through the air inlet 108, and then enters the air inlet pipe 103 through the high-temperature resistant fluororubber gasket 102, and then the cooling gas enters the ventilation space between the air-cooled probe housing 104 and the transducer probe 105 through the air inlet pipe 103, and then the heat is taken away by the low-temperature gas flowing in the cavity of the ventilation space. After cooling, the gas is discharged to the air outlet 109 through the through hole of the high-temperature resistant fluororubber gasket 102 through the air outlet pipe 107, and then discharged. It should be noted here that the signal line of the transducer probe 105 passes through the center of the transducer probe 105 and the air-cooled probe housing 104 to the rear end connecting rod, and then connected to the transducer adapter board.
[0026] Specifically, refer to Figure 4 The air inlet 108 and the air outlet 109 are both connected to the opposing air-cooled transducer assembly 1, which includes a switching device 1016, a probe steel pipe 1014 and an air outlet steel pipe 1013 connected to the switching device 1016, an air inlet steel pipe 1012 arranged in the switching device 1016 and the probe steel pipe 1014, and an opposing flange 1011 installed on the probe steel pipe 1014, one end of the probe steel pipe 1014 and one end of the air outlet steel pipe 1013 are respectively connected to the switching device 1016 by fastening bolts 1015, the other end of the probe steel pipe 1014 is connected to the air inlet 108, and the other end of the air outlet steel pipe 1013 is connected to the air outlet 109. The adapter device 1016 is provided with an adapter air inlet, an adapter air outlet and an adapter wire outlet. The adapter air inlet is connected to the air cooling system host 4, the adapter wire outlet is connected to the flow meter host 3, the adapter air outlet is connected to the external muffler, the adapter air inlet is connected to the air inlet 108, the adapter air outlet is connected to the air outlet 109, and the adapter wire outlet is connected to the wire outlet 1010. In this embodiment, the adapter air inlet and the adapter air outlet are both quick interfaces, and the adapter wire outlet is a straight-out type, which is convenient for quick connection and disassembly, and enhances the convenience of system maintenance. The air inlet steel pipe 1012 is a seamless ventilation steel pipe, one end of which is connected with a threaded ferrule, and the other end is provided with a ferrule joint, so as to facilitate installation and disassembly maintenance and improve the sealing performance of the structure.
[0027] Reference Figure 2 A gas separation filter device 5 is provided between the air cooling system main unit 4 and the opposite air cooling transducer assembly 1, for dividing and filtering the cooling gas. One end of the gas separation filter device 5 is connected to the air cooling system main unit 4, and the other end of the gas separation filter device 5 is connected to the transfer air inlet of the transfer device 1016. The flange short pipe ball valve combination 1017 is composed of a flange welded short pipe and a ball valve, refer to Figure 4One end of the flange welded short pipe is welded to the high-temperature pipe 2 to be tested, and the other end of the flange welded short pipe is connected to one end of the ball valve by bolts, and the other end of the ball valve is connected to the opposing flange 1011 to facilitate operation and control of the flow of cooling gas.
[0028] Working principle: When in use, first place the flange short tube ball valve combination 1017 on both sides of the high-temperature pipeline 2 to be measured, and then install the opposing air-cooled transducer assemblies 1 at both ends of the two ball valves, start the air cooling system host 4 to provide cooling gas, and the cooling gas provides relatively pure cooling gas to the two opposing air-cooled transducer assemblies 1 through the gas distribution filter device 5. The opposing air-cooled transducer assembly 1 starts to take in air, and then the cooling gas enters the interior of the structure through the adapter 1016, and then enters the probe steel pipe 1014 through the air intake steel pipe 1012, and then is guided by the probe steel pipe 1014 to the air inlet 108 of the adapter 101, the cooling gas enters the interior of the transducer, and takes away the heat of the pipeline to be measured through the gas circulation set by the internal structure, and then flows to the air outlet 109 through the air outlet pipe 107, and enters the air outlet steel pipe 1013, and then passes through the air outlet hole on the adapter 1016 and is transmitted to the outside atmosphere through the silencer.
[0029] The above-mentioned through-beam insertion type ultrasonic flowmeter can not only be used for measurement in ultra-high temperature gas pipelines, but can also be applied to the precise measurement of high temperature gas flow such as water vapor, so as to solve the problem that gas flow is difficult to measure under high temperature conditions; at the same time, the through-beam insertion type ultrasonic flowmeter can not only use gas cooling, but also liquid cooling to achieve a wide range of applications, and for the use environment of flammable and explosive gases, inert gas cooling is required.
[0030] Therefore, the use of the above-mentioned through-beam insertion ultrasonic flowmeter with a cooling system solves the problem that the existing ultrasonic transducer cannot be used in working conditions above 150°C. It has a simple structure and is easy to maintain and replace, meeting the measurement needs in high temperature environments and the requirements for on-site flow test accuracy, and is conducive to large-scale promotion and use.
[0031] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A through-beam insertion type ultrasonic flowmeter with a cooling system, comprising a through-beam cooling transducer assembly, an air cooling system host and a flowmeter host, characterized in that: The air-cooling system host and the flowmeter host are respectively connected to the opposite-shooting cooling transducer assembly, and the opposite-shooting cooling transducer assembly includes a flange short tube ball valve combination, an opposite-shooting air-cooling transducer probe part assembly connected to the flange short tube ball valve combination, and an opposite-shooting air-cooling transducer assembly connected to the opposite-shooting air-cooling transducer probe part assembly.
2. The through-beam insertion type ultrasonic flowmeter with a cooling system according to claim 1, characterized in that: The opposing air-cooled transducer probe partial assembly includes an adapter, an air inlet pipe, an air-cooled probe housing, a transducer probe and an air outlet pipe. The adapter is connected to the air-cooled probe housing by 6 hexagon socket bolts. The air inlet pipe, the air-cooled probe housing and the transducer probe are connected by welding to form an integral structure. The part between the air-cooled probe housing and the transducer probe forms a ventilation space for effectively taking away heat, and the air outlet pipe and the air inlet pipe are respectively arranged at both ends of the air-cooled probe housing.
3. The through-beam insertion type ultrasonic flowmeter with a cooling system according to claim 2, characterized in that: An air inlet, an air outlet and a wire outlet are arranged in the adapter. The air inlet, the air outlet and the wire outlet are independent of each other, and the bottom ends are respectively connected with high-temperature resistant fluororubber gaskets. The high-temperature resistant fluororubber gasket is arranged between the adapter and the air-cooled probe housing, and is used to seal the connection between the adapter and the air-cooled probe housing.
4. The through-beam insertion type ultrasonic flowmeter with a cooling system according to claim 3, characterized in that: A through hole is provided in the high temperature resistant fluororubber gasket, the through hole corresponding to the air inlet is connected to the air inlet pipe, and the air outlet and the corresponding through hole are both connected to the ventilation space between the air-cooled probe housing and the transducer probe.
5. The through-beam insertion type ultrasonic flowmeter with a cooling system according to claim 4, characterized in that: The air inlet and the air outlet are both connected to the opposing air-cooled transducer assembly, which includes a switching device, a probe steel pipe and an air outlet steel pipe connected to the switching device, an air inlet steel pipe arranged in the switching device and the probe steel pipe, and an opposing flange installed on the probe steel pipe, one end of the probe steel pipe and one end of the air outlet steel pipe are respectively connected to the switching device by fastening bolts, the other end of the probe steel pipe is connected to the air inlet, and the other end of the air outlet steel pipe is connected to the air outlet.
6. The through-beam insertion type ultrasonic flowmeter with a cooling system according to claim 5, characterized in that: The adapter device is provided with an adapter air inlet, an adapter air outlet and an adapter wire outlet. The adapter air inlet is connected to the air cooling system host, the adapter wire outlet is connected to the flow meter host, the adapter air outlet is connected to an external muffler, the adapter air inlet is communicated with the air inlet, the adapter air outlet is communicated with the air outlet, and the adapter wire outlet is communicated with the wire outlet.
7. The through-beam insertion type ultrasonic flowmeter with a cooling system according to claim 6, characterized in that: The transfer air inlet and the transfer air outlet are both quick interfaces, and the transfer wire outlet is a straight outlet type.
8. The through-beam insertion type ultrasonic flowmeter with a cooling system according to claim 7, characterized in that: The air inlet steel pipe is a seamless ventilation steel pipe, one end of which is connected with a threaded ferrule and the other end is provided with a ferrule joint.
9. The through-beam insertion type ultrasonic flowmeter with a cooling system according to claim 8, characterized in that: An air separation filter device is provided between the air cooling system main unit and the opposing air cooling transducer assembly, one end of the air separation filter device is connected to the air cooling system main unit, and the other end of the air separation filter device is connected to the transfer air inlet of the transfer device.
10. The through-beam insertion type ultrasonic flowmeter with a cooling system according to claim 9, characterized in that: The flange short tube ball valve combination consists of a flange welded short tube and a ball valve, one end of the flange welded short tube is welded to the high-temperature pipeline to be measured, the other end of the flange welded short tube is connected to one end of the ball valve by bolts, and the other end of the ball valve is connected to the opposing flange.