CN205580536U - An insertion type ultrasonic flowmeter with a pressure sensor assembly - Google Patents

Abstract

The utility model discloses a plug-in ultrasonic flowmeter with a pressure sensor assembly, which comprises a flow reflection mechanism, a gauge outfit assembly and a connecting rod; the flow reflection mechanism is arranged at the lower end of the connecting rod, and the gauge head assembly is arranged at the upper end of the connecting rod; the flow reflection mechanism comprises an ultrasonic reflection box body, two ultrasonic sensors, two ultrasonic reflectors and a connecting seat; a straight fluid channel is arranged on the ultrasonic reflection box body, the two ultrasonic sensors are fixedly arranged on the upper side wall of the fluid channel, and the two ultrasonic reflectors are fixedly arranged on the lower side wall of the fluid channel; the two ultrasonic sensors and the two ultrasonic reflectors are positioned in the same right-angle quadrangle; one end of the pressure sensor assembly is connected with the gauge head assembly through a conduit, and the other end of the pressure sensor assembly is communicated with the inside of the pipeline. The utility model aims at providing an ultrasonic flowmeter reflect meter for ultrasonic flowmeter's installation is simple reliable, and later stage maintenance and maintenance are all very convenient.

Description

An insertion type ultrasonic flowmeter with a pressure sensor assembly

technical field

The utility model relates to the technical field of flow measurement, in particular to an insertion type ultrasonic flowmeter with a pressure sensor assembly.

Background technique

As we all know, traditional flow meters or heat meters mostly use impeller flow sensors, which have defects such as complex structure and short service life. Once used for a long time, the measurement accuracy will gradually decrease, and because the fluid contains impurities, it is often affected Serious effects such as blockage will bring losses to the use. Therefore, the ultrasonic flowmeter replaces the traditional flowmeter or heat meter because it has no mechanical moving parts and can ensure the measurement accuracy.

In the prior art, as shown in Fig. 1 and Fig. 2, after the on-site drilling, the sensors of the two ultrasonic flowmeters A1 are installed on the pipeline B1, and the zero-point adjustment and flow calibration are carried out on-site. However, due to the excessive water pressure in the pipeline and the Fast water flow will make zero point adjustment and flow calibration more difficult, and will make later inspection and maintenance inconvenient.

Utility model content

The purpose of the utility model is to provide a reflection device of an ultrasonic flowmeter, which makes the installation of the ultrasonic flowmeter simple and reliable, and the later maintenance and maintenance are very convenient.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a plug-in ultrasonic flowmeter with a pressure sensor assembly, which is characterized in that it includes a flow reflection mechanism, a meter head assembly, a connecting rod, and a pressure sensor assembly; The reflective mechanism is set at the lower end of the connecting rod, and the head assembly is set at the upper end of the connecting rod; the flow reflecting mechanism includes an ultrasonic reflecting box, two ultrasonic sensors, two ultrasonic reflecting bodies, and a connecting seat; A straight fluid channel, the two ultrasonic sensors are fixed on the upper side wall of the fluid channel, and the two ultrasonic reflectors are fixed on the lower side wall of the fluid channel; the two ultrasonic sensors The two ultrasonic reflectors are located in the same right-angled quadrilateral, and the upper ends of the two ultrasonic reflectors are provided with opposite slopes for reflecting ultrasonic waves, and the flow reflection mechanism is extended into the pipeline for use; one end of the pressure sensor assembly passes through the conduit It is connected with the head assembly, and the other end communicates with the pipeline.

The utility model is further provided that the upper side of the ultrasonic reflection box is a horizontal plane, and the horizontal plane is provided with two through holes communicating with fluid passages, the ultrasonic sensor is arranged in the through holes, and the The lower end of the through hole is provided with an annular boss to offset the lower end of the ultrasonic sensor, and a compression nut is provided on the upper side of the ultrasonic sensor. The lower end surface of the connection seat is concaved to form a wire passage cavity, the compression nut is provided with a wire passage hole connected to the ultrasonic sensor, the connecting rod is hollow inside and communicated with the wire passage cavity, and the connection seat and A gasket is provided between the ultrasonic reflection box, and an O-ring is provided between the boss and the ultrasonic sensor.

The utility model is further configured that the gauge assembly is connected to the connecting rod through the gauge connection assembly.

The utility model is further provided that the meter head connection assembly includes a flange, a first lock nut and a sealing ring; wherein, the flange and the first lock nut are both sleeved on the connecting rod on the outer wall, and the flange can be fixed to the shell of the meter head assembly through the first lock nut; there are at least two sealing rings, and at least one sealing ring is arranged between the flange and the outer wall. Between the connecting rods, at least one sealing ring is arranged between the flange and the shell of the gauge assembly.

The utility model is further provided that the ultrasonic reflector is cylindrical, and the lower side wall of the ultrasonic reflective box is provided with a concave hole for placing the ultrasonic reflector.

The utility model is further provided that the conduit is a metal hose.

Beneficial effects of the utility model: the plug-in ultrasonic flowmeter with pressure sensor assembly provided by the utility model connects the ultrasonic sensor, the ultrasonic reflector, the head assembly (such as the flow totalizer), etc. Before debugging and flow calibration, on-site installation only needs to adjust the depth of the flow reflection mechanism inserted into the pipeline and correct the direction. Therefore, no need to re-adjust and calibrate, making the installation of the ultrasonic flowmeter simple and reliable Only need to replace the flow reflection mechanism, so that the later inspection and maintenance are very convenient; the position of the two ultrasonic sensors in the flow reflection mechanism is relatively fixed, so that the propagation distance of the ultrasonic waves is unchanged, and the flow reflection mechanism The volume structure is small, so it is not affected by the error of on-site opening, and has low requirements for on-site installation; the pressure sensor component can reflect the pressure change in the pipeline in time, and can judge the failure of the water supply pipeline system according to the pressure change.

Description of drawings

Fig. 1 is a structural diagram of the installation and cooperation of an ultrasonic flowmeter and a pipeline in the prior art;

Fig. 2 is another structural diagram of the installation and cooperation of the ultrasonic flowmeter and the pipeline in the prior art;

Fig. 3 is the structural representation of the utility model;

Fig. 4 is a schematic structural diagram of the flow reflection mechanism of the present invention;

Fig. 5 is a cross-sectional view of the flow reflection mechanism of the present invention;

Fig. 6 is an enlarged view of part B in Fig. 3 of the present utility model.

Meanings of symbols in the figure: 1-flow reflection mechanism; 2-head assembly; 3-connecting rod; 4-ultrasonic reflection box; 5-ultrasonic sensor; 6-ultrasonic reflector; 9-Slope; 10-Through hole; 11-Boss; 12-Compression nut; 13-Wire passage cavity; 14-Wire passage hole; 15-Sealing gasket; 16-O-ring; ; 18-flange; 19-first lock nut; 20-sealing ring; 21-concave hole; 22-pressure sensor assembly;

detailed description

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

The utility model is described below with reference to Fig. 1 to Fig. 6 .

An insertion type ultrasonic flowmeter with a pressure sensor assembly, comprising a flow reflection mechanism 1, a meter head assembly 2, a connecting rod 3, and a pressure sensor assembly 22; the flow reflection mechanism 1 is arranged at the lower end of the connecting rod 3, and the meter head assembly 2 Set on the upper end of the connecting rod 3, the flow reflection mechanism 1 extends into the pipeline for use; the flow reflection mechanism 1 includes an ultrasonic reflection box 4, two ultrasonic sensors 5, two ultrasonic reflectors 6, and a connecting seat 7; the ultrasonic A straight fluid channel 8 is set on the reflection box 4, the two ultrasonic sensors 5 are fixedly arranged on the upper side wall of the fluid channel 8, and the two ultrasonic reflectors 6 are fixedly arranged on the fluid channel 8 The lower side walls of the two ultrasonic sensors 5 and the two ultrasonic reflectors 6 are located in the same right-angled quadrilateral, and the upper ends of the two ultrasonic reflectors 6 are provided with opposite slopes 9 for reflecting ultrasonic waves; One end of the pressure sensor assembly 22 is connected to the meter assembly 2 through a conduit 23 , and the other end communicates with the pipe B1 , and the conduit 23 is a metal hose.

The upper side of the ultrasonic reflection box body 4 is a horizontal plane, and the horizontal plane is provided with two through holes 10 communicating with the fluid channel 8, the ultrasonic sensor 5 is arranged in the through holes 10, and the lower end of the through holes 10 An annular boss 11 is arranged to offset against the lower end of the ultrasonic sensor 5, and a compression nut 12 is arranged on the upper side of the ultrasonic sensor 5, and the compression nut 12 is threadedly connected with the through hole 10, and the connecting seat 7 is covered on the horizontal surface , the lower end surface of the connecting seat 7 is concaved to form a wire passage cavity 13, the compression nut 12 is provided with a wire passage hole 14 communicating with the ultrasonic sensor 5, and the connecting rod 3 is hollow inside and connected to the passage The wire cavity 13 is connected, and the electrical connecting wire on the ultrasonic sensor 5 passes through the wire hole 14, the wire cavity 13, and the hollow connecting rod 3 is connected with the meter head assembly 2, and the connecting seat 7 and the ultrasonic reflection box 4 are connected to each other. A gasket 15 is provided, and an O-ring 16 is arranged between the boss 11 and the ultrasonic sensor 5, and the O-ring 16 is used to prevent fluid from entering between the ultrasonic sensor 5 and the boss 11. The channel, the gasket 15 is used to prevent the fluid from entering the channel between the connecting seat 7 and the ultrasonic reflection box 4. The above-mentioned structure is designed reasonably, and there is a channel for passing the line inside. At the same time, it has good sealing performance and can meet conditions in the fluid.

The meter head assembly 2 and the connecting rod 3 are connected by a meter head connection assembly 17, and the meter head connection assembly 17 includes a flange 18, a first lock nut 19 and a sealing ring 20; wherein, the flange 18 is connected to the The first locking nuts 19 are all sleeved on the outer wall of the connecting rod 3, and the flange 18 can be fixed to the shell of the gauge assembly 2 through the first locking nuts 19; There are at least two sealing rings 20, wherein at least one sealing ring 20 is arranged between the flange 18 and the connecting rod 3, and at least one sealing ring 20 is arranged between the flange 18 and the gauge assembly 2 between the shells.

The ultrasonic reflector 6 is cylindrical, and the lower side wall of the ultrasonic reflective box 4 is provided with a concave hole 21 for placing the ultrasonic reflector 6 .

Beneficial effects of the utility model: the plug-in ultrasonic flowmeter with pressure sensor assembly provided by the utility model connects the ultrasonic sensor, the ultrasonic reflector, the head assembly (such as the flow totalizer), etc. Before debugging and flow calibration, on-site installation only needs to adjust the depth of the flow reflection mechanism inserted into the pipeline and correct the direction. Therefore, no need to re-adjust and calibrate, making the installation of the ultrasonic flowmeter simple and reliable Only need to replace the flow reflection mechanism, so that the later inspection and maintenance are very convenient; the position of the two ultrasonic sensors in the flow reflection mechanism is relatively fixed, so that the propagation distance of the ultrasonic waves is unchanged, and the flow reflection mechanism The volume structure is small, so it is not affected by the error of on-site opening, and has low requirements for on-site installation; the pressure sensor component can reflect the pressure change in the pipeline in time, and can judge the failure of the water supply pipeline system according to the pressure change.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. These improvements and variations should also be regarded as the protection scope of the present utility model.

Claims (6)

1. A plug-in ultrasonic flowmeter with a pressure sensor assembly, characterized in that: it includes a flow reflection mechanism, a meter head assembly, a connecting rod, and a pressure sensor assembly; the flow reflection mechanism is arranged at the lower end of the connecting rod, and the meter head assembly is arranged on the upper end of the connecting rod; the flow reflecting mechanism includes an ultrasonic reflecting box, two ultrasonic sensors, two ultrasonic reflecting bodies, and a connecting seat; a straight fluid channel is set on the ultrasonic reflecting box, and the two ultrasonic The sensor is fixedly arranged on the upper side wall of the fluid channel, and the two ultrasonic reflectors are fixedly arranged on the lower side wall of the fluid channel; the two ultrasonic sensors and the two ultrasonic reflectors are located in the same rectangular quadrilateral Inside, and the upper ends of the two ultrasonic reflectors are provided with opposite slopes for reflecting ultrasonic waves, and the flow reflection mechanism is extended into the pipeline for use; one end of the pressure sensor assembly is connected to the meter assembly through a conduit, and the other end communicates with the inside of the pipeline . 2. A plug-in ultrasonic flowmeter with a pressure sensor assembly according to claim 1, characterized in that: the upper side of the ultrasonic reflection box is a horizontal plane, and two communicating fluid passages are arranged on the horizontal plane The through hole, the ultrasonic sensor is arranged in the through hole, an annular boss is arranged at the lower end of the through hole to offset the lower end of the ultrasonic sensor, and a compression nut is arranged on the upper side of the ultrasonic sensor, and the compression nut is connected to the through hole. The hole is threaded, the connecting seat cover is set on the horizontal surface, the lower end surface of the connecting seat is concave to form a wire passing cavity, the compression nut is provided with a wire passing hole connected to the ultrasonic sensor, and the connecting rod The interior is hollow and communicated with the wire passage cavity, a sealing gasket is provided between the connecting seat and the ultrasonic reflection box, and an O-ring is provided between the boss and the ultrasonic sensor. 3. An insertion type ultrasonic flowmeter with a pressure sensor assembly according to claim 1 or 2, characterized in that: the meter head assembly is connected to the connecting rod through a meter head connection assembly. 4. An insertion type ultrasonic flowmeter with a pressure sensor assembly according to claim 3, characterized in that: the meter head connection assembly includes a flange, a first lock nut and a sealing ring; wherein, the method Both the flange and the first locking nut are sleeved on the outer wall of the connecting rod, and the flange can be fixed to the outer shell of the gauge assembly through the first locking nut; the sealing ring There are at least two, wherein at least one sealing ring is arranged between the flange and the connecting rod, and at least one sealing ring is arranged between the flange and the shell of the gauge assembly. 5. A plug-in ultrasonic flowmeter with a pressure sensor assembly according to claim 1, characterized in that: the ultrasonic reflector is cylindrical, and the lower side wall of the ultrasonic reflective box is provided with an ultrasonic reflector of concave holes. 6. An insertion type ultrasonic flowmeter with a pressure sensor assembly according to claim 1, wherein the conduit is a metal hose.