CN201622086U

CN201622086U - Sensor device of ultrasonic flow meter

Info

Publication number: CN201622086U
Application number: CN2009202502100U
Authority: CN
Inventors: 王双存; 梁玉堂; 陈会庆; 李长奇; 郭静
Original assignee: Zhonghuan TIG Co Ltd
Current assignee: Zhonghuan TIG Co Ltd
Priority date: 2009-11-12
Filing date: 2009-11-12
Publication date: 2010-11-03
Anticipated expiration: 2019-11-12

Abstract

The utility model relates to a sensor device of an ultrasonic flow meter, comprising a shell welded with a flange, bases, a probe, as well as a probe seat, pressing rings, a positioning plug, an O-shaped ring and an O-shaped ring, wherein the two base are respectively and vertically fixed on two side surfaces of the shell; the two probes are respectively provided with the O-shaped rings which are respectively fixed with the probe seat; the two probe seats are respectively provided with the O-shaped rings which are respectively arranged in the base; the two positioning plugs respectively fix the probe seats and the bases together; and the two pressing rings are respectively arranged in and fixed with the bases . The sensor device has the benefits that the ultrasonic water meter device comprises special structure members such as the probe, the bases, the probe seats, the positioning plug and the like, can reduce the influence brought by the standard length of the shell, realize the purpose of prolonging the sound path of ultrasonic wave, is convenient to produce and install, can be used in the ultrasonic water meter and the ultrasonic flow meter, and comprises the measurement on gas flow of a pipeline, and liquid flow in the industry and civil water channel flow.

Description

The sensor device of ultrasonic flow instrument

Technical field

The utility model relates to a kind of instrument and meter for automation, particularly a kind of sensor device of ultrasonic flow instrument.

Background technology

The sensor construction that current ultrasound wave water meter is adopted all be probe be potted directly on the pipeline or probe be fixed to the acutangulate pedestal of housing on, the sensor that these structures are formed all uses smaller probe.The fault of construction of these simple designs mainly contains 3 points: the one, and water meter standard lower sensor tube coupling is short, distance after probe is installed on the pipeline between probe and the adjacent flange is too little, is drawing or probe mounting dismounting difficulty relatively all of probe signal line; The 2nd, must adopt the smaller probe of diameter, reduce the probe mounting hardness by using the little wafer package of diameter to go out the very little probe of diameter, the area of little wafer received signal is little, and is sending on the signal intensity also not as big wafer, the loss of bringing precision for the measurement of flow; The 3rd, two probes of ultrasound wave water meter requirement must align and will keep specific distance, and these structures need specific aid when probe is encapsulated on the pipeline or be installed on the pipeline.

Above-mentioned 3 is the drawback that exists in the current ultrasound wave sensor of water meter structure, has brought loss to measuring-signal, has also brought very big difficulty to batch process.

Summary of the invention

In view of the deficiency that prior art exists, the utility model provides special construction spares such as a kind of employing probe, pedestal, probe socket, restricted plug to form, and prolongs the sensor device of the ultrasonic flow instrument of ultrasound wave sound path with realization.

The technical scheme that the utility model is taked for achieving the above object is: a kind of sensor device of ultrasonic flow instrument, comprise the housing that is welded with flange, pedestal, probe, it is characterized in that: also comprise probe socket, compacting ring, restricted plug, O type circle, O type circle, two described pedestals are vertically fixed on respectively on the two sides of housing, two described probes install O type circle separately and fix with probe socket respectively, two described probe sockets install O type circle separately and place pedestal respectively, two described restricted plugs are respectively with probe socket, pedestal is fixed together, and two described compacting rings place pedestal and pedestal to fix respectively.

The beneficial effects of the utility model are: the ultrasound wave water meter device by special construction spares such as probe, pedestal, probe socket, restricted plug are formed, can reduce the influence that the housing standard length is brought, and realize prolonging the ultrasound wave sound path, produce easy for installation.This device can use in ultrasound wave water meter and ultrasonic flow meter, comprises the measurement and the measurement of domestic use of water pipeline flow of industrial pipeline gas flow and fluid flow.

Description of drawings

Fig. 1 is a structural representation of the present utility model and as Figure of abstract.

Fig. 2 is the A-A view of Fig. 1.

Fig. 3 is a probe front view of the present utility model.

Fig. 4 is the upward view of Fig. 3.

Fig. 5 the utility model probe socket cut-open view.

Fig. 6 is the vertical view of Fig. 5.

Embodiment

Shown in Fig. 1～6, the sensor device of ultrasonic flow instrument, comprise the housing 1 that is welded with flange, pedestal 4, probe 5, also comprise probe socket 3, compacting ring 6, restricted plug 8, O type circle 10, O type circle 13, two pedestals 4 are vertically fixed on respectively on the two sides of housing 1, two probes 5 install O type circle 13 separately and fix with probe socket 3 respectively, two probe sockets 3 install O type circle 10 separately and place pedestal 4 respectively, two restricted plugs 8 are fixed together probe socket 3, pedestal 4 respectively, and two compacting rings 6 place pedestal 4 fixing with pedestal 4 respectively.

Probe 5 is cylindrical, is provided with two frock hole 5-1 on the front end face of probe 5, is provided with two circle groove 5-2 and a circle screw thread 5-3 on the periphery of probe 5.Probe socket 3 upper ends are have a circle boss 3-1 cylindrical, the lower end is the shape of a hoof, on boss 3-1 face, be provided with two symmetrical pilot hole 3-2, on probe socket 3 upper surfaces, be respectively equipped with the frock hole 3-3 and the cable-through hole 3-4 that have internal thread, on shape of a hoof oblique section, be provided with tapped probe chamber 3-5, probe chamber 3-5 communicates with cable-through hole 3-4, is provided with a circle groove 3-6 on cylindrical outer side face below the boss 3-1.Probe 5 is angle with housing 1 axis.

Process and respectively be welded to the both ends of the surface of Stainless Steel Shell 1 on according to the national standard size two flanges 2, two pedestals 4 are welded to respectively on the two sides of housing 1 according to the position of designing, put into an O type circle 13 respectively among the groove 5-2 with two probes 5, be screwed into respectively on the screw thread of probe cavity 3-5 by the screw thread 5-3 on 5 of popping one's head in then and be fixed together with probe socket 3 respectively, O type circle 13 plays sealing function, prevent that the liquid in the housing 1 from flowing out by probe socket 3, again two O type circles 10 are put into respectively among the groove 3-1 on the probe socket 3, by frock two probe sockets 3 are put into respectively in the pedestal 4, two pilot hole 3-2 on the probe socket 3 and the pilot hole on the pedestal 4 align, two pilot hole 3-2 that two restricted plugs 8 are put into respectively on the probe socket 3 are positioned at probe socket 3 with pedestal 4, guarantee that the bottom surface of probe 5 is parallel with the bottom surface with the probe of opposite side and align, O type circle 10 plays sealing function, prevent that the liquid in the housing 1 from flowing out by the surface of contact of pedestal 4 with probe socket 3, by adjusting the processing dimension of probe socket 3, can adjust the aspect of probe 5 and the angle of housing 1 axis, thereby adjust the ultrasound wave sound path, reduced to be subjected to of the restriction of the length of housing 1, improved the ultrasonic flow meter machine performance the ultrasound wave sound path.Frock hole 3-3 is arranged on the probe socket 3, can conveniently probe socket 3 be taken out from pedestal 4 by frock hole 3-3.By frock two compacting rings are screwed into respectively in the pedestal 4 to compress probe socket 3, to prevent that the fluid pressure amplification ejects probe socket 3 in the housing 1 then.Two signal wires 14, draw from terminal box 9 separately by various fairlead 12 separately, at last two O type circles 11 are put into respectively in the pedestal 4 upper end grooves, it is fixing that two sealing plugs 7 are spirally connected by screw thread and pedestal 4 respectively, and O type circle 11 can prevent that the water of housing outside from entering in the pedestal 4.

Adopt the ultrasonic probe of bigger wafer package to be screwed on the probe socket by screw thread, probe socket is fixed to vertical welding and receives on the pedestal on the housing, and location structure is arranged on the pedestal, can guarantee that two center probes align.The pedestal vertical welding is received on the housing, helps prolonging the distance between two probes, has reduced the restriction of shell length to distance between two probes.

Claims

1. the sensor device of a ultrasonic flow instrument, comprise the housing (1) that is welded with flange, pedestal (4), probe (5), it is characterized in that: also comprise probe socket (3), compacting ring (6), restricted plug (8), O type circle (10), O type circle (13), two described pedestals (4) are vertically fixed on respectively on the two sides of housing (1), it is fixing with probe socket (3) respectively that two described probes (5) install O type circle (13) separately, two described probe sockets (3) install O type circle (10) separately and place pedestal (4) respectively, two described restricted plugs (8) are respectively with probe socket (3), pedestal (4) is fixed together, and two described compacting rings (6) place pedestal (4) and pedestal (4) fixing respectively.

2. the sensor device of ultrasonic flow instrument according to claim 1, it is characterized in that: described probe (5) is for cylindrical, on the front end face of probe (5), be provided with two frock holes (5-1), on the periphery of probe (5), be provided with two circle grooves (5-2) and a circle screw thread (5-3).

3. the sensor device of ultrasonic flow instrument according to claim 1, it is characterized in that: described probe socket (3) upper end is for having the cylindrical of boss (3-1), on boss (3-1) face, be provided with two symmetrical pilot holes (3-2), on probe socket (3) upper surface, be respectively equipped with tapped frock hole (3-3) and cable-through hole (3-4), on the oblique section, be provided with tapped probe chamber (3-5), probe chamber (3-5) communicates with cable-through hole (3-4), is provided with groove (3-6) on the cylindrical outer side face of boss (3-1) below.

4. the sensor device of ultrasonic flow instrument according to claim 1 is characterized in that: described probe (5) is angle with housing (1) axis.