Small-bore ultrasonic water meter

A small-caliber, ultrasonic technology, applied in the field of flow meters, can solve the problems of affecting the measurement accuracy, easy to generate air bubbles at the contact parts, and leakage of the sealing ring

Pending Publication Date: 2018-01-12
ZHEJIANG TIANXIN INSTR TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] The structure of the water meter for measuring urban tap water in the prior art usually includes a watch cover and a watch case. The watch case includes an upper casing, a lower casing and an ultrasonic flow reflection device installed between the upper and lower casings. The ultrasonic flow reflection device includes a reflector The housing, reflective housing 1' is provided with a fluid channel, and the side wall of the fluid channel facing the side of the upper shell is installed with an

Method used

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Embodiment Construction

[0019] Specific embodiments of the present invention such as Figure 2-8 Shown is a small-diameter ultrasonic water meter, including a cover 1, a watch case 2, and the watch case 2 includes an upper case 21, a lower case 23 and an ultrasonic flow reflection device 3 installed between the upper and lower case 23, and the upper case 21 is installed There is a gauge box 211, a battery box 212 and a battery 213 are installed in the gauge box 211, the upper and lower shells 23 correspond, the side wall of the lower shell 23 is provided with a mounting flange 221, and the mounting flange 221 is screwed with a positioning screw 222 for positioning. The screw 222 passes through the mounting flange 221 and is fixedly connected with the upper casing 21. The end of the meter box 211 close to the meter cover 1 also isolates a sealed cavity for installing the main board display board 4. The main board display board 4 is electrically connected to the battery 213. Connected, the ultrasonic f...

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Abstract

The invention discloses a small-bore ultrasonic water meter. The water meter comprises a meter lid and a meter shell, the meter shell comprises an upper outer shell, a lower outer shell and an ultrasonic flow reflection device installed between the upper outer shell and the lower outer shell, the ultrasonic flow reflection device comprises a reflection shell, a fluid channel is formed in the reflection shell, the ultrasonic flow reflection device comprises an ultrasonic probe and a reflection body, the ultrasonic probe is embedded into the side wall, close to the upper outer shell, of the fluid channel and sealed through glue filling, and the reflection body is axially installed at an end opening of the fluid channel along the fluid channel and fixed into the fluid channel through a supporting frame. The small-bore ultrasonic water meter is good in seal performance and high in measurement precision because the ultrasonic probe does not contact with fluid media.

Description

technical field [0001] The invention belongs to the technical field of flowmeters, in particular to a small-diameter ultrasonic water meter used in urban tap water measurement. Background technique [0002] The structure of the water meter for measuring urban tap water in the prior art usually includes a watch cover and a watch case. The watch case includes an upper casing, a lower casing and an ultrasonic flow reflection device installed between the upper and lower casings. The ultrasonic flow reflection device includes a reflector The housing, reflective housing 1' is provided with a fluid channel, and the side wall of the fluid channel facing the side of the upper shell is installed with an ultrasonic probe 4', which is sealed by a sealing ring 3', while the fluid channel is facing the side wall of the side of the lower shell A reflector 2' corresponding to the ultrasonic probe 4' is installed in it, and its structure is as follows figure 1 As shown, because the ultrason...

Claims

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Application Information

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IPC IPC(8): G01F1/66G01F15/14
Inventor 陈为刚林念杰王秋宏丁忠瓦黄通泉金欧周勇
Owner ZHEJIANG TIANXIN INSTR TECH CO LTD
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