CN218628462U - Laser positioning ultrasonic flow sensor - Google Patents
Laser positioning ultrasonic flow sensor Download PDFInfo
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- CN218628462U CN218628462U CN202223077486.8U CN202223077486U CN218628462U CN 218628462 U CN218628462 U CN 218628462U CN 202223077486 U CN202223077486 U CN 202223077486U CN 218628462 U CN218628462 U CN 218628462U
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Abstract
The utility model belongs to the field of engineering detection, in particular to a laser positioning ultrasonic flow sensor, which comprises a shell, an ultrasonic flow sensor arranged in the shell and a laser positioning device; the ultrasonic flow sensor comprises an ultrasonic flow sensor body and a sound wedge; the laser positioning device comprises a laser positioning body and a laser diode; the bottom of the shell is provided with a sound wedge opening for accommodating the sound wedge; the side wall of the shell is provided with a laser opening for accommodating a laser diode; the laser diode is vertical to the acoustic wedge; fixed magnets are symmetrically arranged on the front side and the rear side of the sound wedge on the shell. This application has integrated laser positioning device on traditional ultrasonic wave flow sensor, utilizes the fixed magnet of casing lower part to install whole device on the pipeline that awaits measuring to carry out the location of two sensors through laser, overcome the unsafe problem in Z method installation ultrasonic wave flow sensor location.
Description
Technical Field
The utility model belongs to engineering detection area, concretely relates to laser positioning ultrasonic wave flow sensor.
Background
According to the requirements of JGJ/T260-2011 'technical specification for detecting heating ventilation and air conditioning engineering', when the performance of a heating ventilation and air conditioning system is detected, basic detection parameters comprise the flow in a water system pipeline, the ultrasonic flowmeter technology is suitable for online calibration and inspection measurement of liquid flow, and an external-clamping type ultrasonic flow sensor is selected and has the characteristics of simplicity in operation, high measurement precision, no need of damaging the pipeline and the like, so that the external-clamping type ultrasonic flow sensor is widely applied to detection of the water flow of the pipeline of the on-site heating ventilation and air conditioning system.
The installation method of the external-clamping type ultrasonic flow sensor usually adopts a V method and a Z method, wherein the two ultrasonic flow sensors in the V method are on the same side and are relatively standard installation methods, the use is convenient, the measurement is accurate, the two sensors are horizontally aligned during the installation, the central line of the two sensors is horizontal to the axis of a pipeline, the range of the measurable pipe diameter is about 15-400mm, the Z method is the most common installation method, the two ultrasonic flow sensors are on the opposite side, the ultrasonic waves are directly transmitted in the pipeline without reflection (single sound path), the signal attenuation loss is small, the Z method is selected when the V method is used for measuring no signals or poor signal quality, and the measurable pipe diameter range is 100-6000 mm.
The installation quality of the external-clamping type ultrasonic flow sensor is directly related to whether the flow value is accurate or not and whether the flowmeter can reliably operate for a long time or not. When the external clip type ultrasonic flow sensor (hereinafter referred to as a sensor) is installed, the position of the sensor should be adjusted as much as possible, so that the sensors in the upstream and downstream directions are installed on the same axial surface of a pipeline, the signal intensity is greater than 60.0, and the transmission time ratio is within the range of 100 +/-3.
At present, the mode of manual visual and standard support is mainly adopted for installing and positioning the outer-clamping type ultrasonic flow sensor, whether the sensors arranged on two sides of a pipeline are difficult to judge on the same axial plane or not is judged in the mode of manual visual positioning when the sensors are installed by a Z method, the positions of the sensors need to be adjusted for many times, and the sensors can also cause insufficient couplant and reduce the signal quality after being adjusted for many times. The standard support installation needs great installation space, and heating ventilation and air conditioning system's water flow test straight tube section is selected in refrigeration computer lab or heat exchange station, and the installation water pipe quantity is more in refrigeration computer lab or the heat exchange station, and standard support installation space receives the restriction, if ultrasonic flow sensor can not install at best test straight tube section, can cause pipeline water flow measurement data discrepancy big.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming among the prior art, provide a well laser positioning ultrasonic flow sensor.
In order to achieve the above object, the utility model adopts the following technical scheme:
a laser positioning ultrasonic flow sensor comprises a shell, an ultrasonic flow sensor arranged in the shell and a laser positioning device; the ultrasonic flow sensor comprises an ultrasonic flow sensor body and a sound wedge; the laser positioning device comprises a laser positioning body and a laser diode; the bottom of the shell is provided with a sound wedge opening for accommodating the sound wedge; the side wall of the shell is provided with a laser opening for accommodating the laser diode; the laser diode is perpendicular to the acoustic wedge; and fixed magnets are symmetrically arranged on the shell at the front side and the rear side of the acoustic wedge.
The laser diode is fixed in the shell by using a fixing hoop.
The laser positioning body comprises a storage battery, a switch connected with the storage battery and a circuit board; the shell is provided with a switch opening and a storage battery charging port; the switch opening is connected with the switch; the storage battery is connected with the storage battery charging port.
The upper part of the shell is provided with a signal transmission line jack which is connected with the ultrasonic flow sensor body.
The upper cover of the shell is a detachable upper cover, and the inner ultrasonic flow sensor and the laser positioning device are convenient to overhaul.
Compared with the prior art, the beneficial effects of the utility model are that:
this application has integrated laser positioner on traditional ultrasonic wave flow sensor, utilizes the fixed magnet of casing lower part to install whole device on the pipeline that awaits measuring to carry out the location of two sensors through laser, overcome the inaccurate problem in Z method installation ultrasonic wave flow sensor location, guarantee that ultrasonic wave flow sensor installs at same axial plane, laser location ultrasonic wave flow sensor has easy operation, the pipeline area occupied is little, operating space is little and the portability is high.
Drawings
FIGS. 1-2 are schematic diagrams of the overall structure of a laser positioning ultrasonic flow sensor;
fig. 3 is a schematic diagram of the internal structure of the laser positioning ultrasonic flow sensor.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the best embodiment.
1-3 illustrate a laser positioning ultrasonic flow sensor comprising a housing, an ultrasonic flow sensor disposed within the housing, and a laser positioning device; the ultrasonic flow sensor comprises an ultrasonic flow sensor body and a sound wedge; the laser positioning device comprises a laser positioning body and a laser diode; the bottom of the shell is provided with a sound wedge opening 8 for accommodating the sound wedge; the side wall of the shell is provided with a laser opening for accommodating the laser diode 1; the laser diode is perpendicular to the acoustic wedge; the shell is provided with fixed magnets 9 symmetrically arranged on the front side and the rear side of the acoustic wedge. The laser diode is secured within the housing using a retaining clip 12.
The laser positioning body comprises a storage battery 10, a switch 2 connected with the storage battery and a circuit board 11; the circuit board is respectively connected with the storage battery, the switch and the laser diode; the shell is provided with a switch opening and a storage battery charging port 4; the switch opening is connected with the switch; the storage battery is connected with the storage battery charging port. And a charging indicator lamp 5 is arranged on the shell. The upper part of the shell is provided with a signal transmission line jack 7 which is connected with the ultrasonic flow sensor body. The upper cover of casing for can dismantle upper cover 7 and conveniently overhaul inside ultrasonic flow sensor and laser positioner.
The laser diode 1 can axially project a vertical line laser beam along the wall surface of the pipeline, and the whole device is fixed through the fixing hoop 12; the switch 2 is pressed to turn on the laser, and then is pressed again to bounce and reset to turn off the laser; the signal transmission line jack 3 is arranged on the upper surface of the shell and is connected with the shell by aerial insertion; the charging port 4 of the storage battery adopts a data line charging socket, so that the charging condition is reduced, and the endurance working time is prolonged; the charging indicator lamp 5 displays red to charge the storage battery 10 to be less than full, and green to fully charge the storage battery; the fixing groove 6 is arranged on the shell and can fix the binding belt to prevent the binding belt from sliding; the detachable upper cover 7 is fixed on the shell through 4 cross countersunk head screws, can be freely detached, and is convenient for maintenance and replacement of electrical elements in the shell; the acoustic wedge 8 is a device for transmitting and receiving ultrasonic waves and is made of high-temperature-resistant materials; the fixed magnet 9 is a strong magnet, and two sides of the acoustic wedge are respectively provided with one piece; insulating materials are wrapped outside the storage battery 10; the components in the circuit board 11 are respectively connected with the laser diode, the switch and the storage battery; the fixing clip 12 is made of plastic.
The application method of the laser positioning vertical ultrasonic flow sensor comprises the following steps: the method comprises the steps of installing by adopting a Z method, marking a test initial point on a selected test straight pipe section, adsorbing an upstream laser positioning vertical ultrasonic flow sensor on a pipeline through a fixed magnet 9, starting laser according to a switch 2, enabling the laser to project a laser vertical line along the axial direction of the pipeline, ensuring that the laser vertical line is parallel to the axial direction of the pipeline, installing a downstream laser positioning vertical ultrasonic flow sensor by utilizing marking paper and the laser vertical line according to an installation interval calculated by an ultrasonic flow meter, opening a signal inspection interface, and starting to record water flow measurement data when the signal intensity is greater than 60.0 and the transmission time ratio is within the range of 100 +/-3.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The laser positioning ultrasonic flow sensor is characterized by comprising a shell, an ultrasonic flow sensor and a laser positioning device, wherein the ultrasonic flow sensor and the laser positioning device are arranged in the shell; the ultrasonic flow sensor comprises an ultrasonic flow sensor body and an acoustic wedge; the laser positioning device comprises a laser positioning body and a laser diode; the bottom of the shell is provided with a sound wedge opening for accommodating the sound wedge; the side wall of the shell is provided with a laser opening for accommodating the laser diode; the laser diode is perpendicular to the acoustic wedge; and fixed magnets are symmetrically arranged on the shell at the front side and the rear side of the acoustic wedge.
2. The laser positioning ultrasonic flow sensor of claim 1, wherein the laser diode is secured within the housing using a retaining clip.
3. The laser positioning ultrasonic flow sensor according to claim 1, wherein the laser positioning body comprises a storage battery, a switch connected with the storage battery and a circuit board; the shell is provided with a switch opening and a storage battery charging port; the switch opening is connected with the switch; the storage battery is connected with the storage battery charging port.
4. The laser positioning ultrasonic flow sensor according to claim 1, wherein a signal transmission line jack is arranged on the upper portion of the housing and connected with the ultrasonic flow sensor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223077486.8U CN218628462U (en) | 2022-11-21 | 2022-11-21 | Laser positioning ultrasonic flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223077486.8U CN218628462U (en) | 2022-11-21 | 2022-11-21 | Laser positioning ultrasonic flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218628462U true CN218628462U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223077486.8U Active CN218628462U (en) | 2022-11-21 | 2022-11-21 | Laser positioning ultrasonic flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218628462U (en) |
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2022
- 2022-11-21 CN CN202223077486.8U patent/CN218628462U/en active Active
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