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Ultrasonic heat meter

An ultrasonic and heat meter technology, used in sensor technology, flow measurement, and acoustic fields, can solve the problems of inconvenient cleaning of the inner cavity, complex structure, and damage to the reflector pressure, and achieve easy repair and maintenance, simplify the structure, and reduce signal consumption. Effect

Inactive Publication Date: 2012-12-05
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the disadvantages of the existing ultrasonic heat meter, such as complex structure, extra pressure damage caused by the reflector, inconvenient cleaning of the inner cavity, etc., and provides a new type of ultrasonic heat meter with simple structure, high precision and convenient disassembly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Ultrasonic heat meters, such as figure 1 As shown, it includes an ultrasonic transducer 1 and a sensor housing 2. The sensor housing 2 is U-shaped. The two ends of the sensor housing 2 are connected to the water inlet and outlet pipes. , the through hole 3 is provided with a cover 4 for sealing, the cover 4 is provided with a tube body 5 with a circular or oval radial section, one end of the tube body 5 extends into the sensor housing 2, and the tube body 5 The other end of the other end is located outside the sensor housing 2, the ultrasonic transducer 1 is arranged on the end of the tube body 5 inside the sensor housing 2, the two tube bodies 5 are in the same straight line, and the two ultrasonic transducers 1 are arranged oppositely, It can directly transmit or receive the ultrasonic signal transmitted by the other party without being reflected by the reflective surface.

[0024] The ultrasonic transducer 1 includes a piezoelectric ceramic vibrator 11, an upper pre...

Embodiment 2

[0027] Ultrasonic heat meters, such as figure 1 As shown, it includes an ultrasonic transducer 1, a sensor housing 2, and a dry pipe 9. The sensor housing 2 is U-shaped, and the two ends of the dry pipe 9 are connected to the water inlet and outlet pipes, such as Figure 4 As shown, one side of the dry pipe 9 is provided with two connecting holes 10 , the connecting holes 10 are respectively connected to two ends of the sensor housing 2 , and the dry pipe 9 and the sensor housing 2 are communicated through the connecting holes 10 . The connecting hole 10 and the sensor housing 2 can be connected by a connecting flange, so that the sensor housing 2 can be disassembled from the joint conveniently when necessary. The water flow of the main pipe 9 enters the sensor housing 2 through the connection hole 10 to form a branch flow. The connecting hole 10 is provided with a valve 14. When the sensor housing 2 needs to be disassembled, the valve 14 can be closed without cutting off the...

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Abstract

The invention relates to the technical field of acoustic sensors, and discloses an ultrasonic heat meter. The ultrasonic heat meter comprises ultrasonic transducers and a sensor casing, and is characterized in that the sensor casing is U-shaped, two ends of the sensor casing are connected with a water inlet pipe and a water outlet pipe, two through holes are arranged at the bend of the sensor casing, sealing caps are arranged on the through holes and provided with pipes, one end of each pipe extends to the inside of the sensor casing, the other end of each pipe is positioned outside the sensor casing, each ultrasonic transducer is arranged at the end, inside the sensor casing, of the corresponding pipe, and the two pipes are located on the same straight line. The ultrasonic heat meter has the advantages that the ultrasonic heat meter is simple in structure with a reflection device omitted, convenient to detach, accurate in measurement, easy and convenient to maintain and low in pressure loss, and the transducers are mounted with high tightness.

Description

technical field [0001] The invention relates to the technical field of acoustics and sensor technology flow measurement, in particular to an ultrasonic heat meter. Background technique [0002] The heat meter is a key instrument and an important basis for charging by heat in the heating system, and its technical indicators such as measurement accuracy and working stability are very important. The amount of heat (cold) consumed by users in a central heating (cooling) system with hot (cold) water as the medium is related to the flow of hot (cold) water and the value of water supply and return. With the promotion of the installation of heat meters in civil buildings with central heating and the implementation of household metering and charging work in our country, the heat meters for household metering have also ushered in a very good development period. There are mechanical and ultrasonic heat meters, and the ultrasonic heat meter is one of the development directions of the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K17/06
Inventor 张新华张若煜
Owner SHAOXING UNIVERSITY
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