CN214793319U - Ultrasonic wave metering equipment - Google Patents

Abstract

The embodiment of the application provides an ultrasonic wave metering equipment, includes: the gas meter connector comprises a first shell, a second shell and a gas meter connector, wherein the first shell is provided with the gas meter connector; the partition plate is arranged in front of the first shell, the partition plate and the first shell are connected in a sealing mode to form a metering cavity, and an ultrasonic metering module is installed in the metering cavity; the second casing that sets up baffle the place ahead, the second casing with the baffle lid closes, the second casing with install control circuit board between the baffle.

Description

Ultrasonic wave metering equipment

Technical Field

The application relates to the technical field of ultrasonic measurement, in particular to ultrasonic measurement equipment.

Background

There are two broad categories of gas meters on the market:

the first type, diaphragm gas meters. The traditional mechanical diaphragm gas meter counts through the matching of the internal diaphragm motion and the mechanical roller. The electronic diaphragm gas meter is additionally provided with an electronic metering mode on the basis of the traditional mechanical diaphragm gas meter, and is based on a diaphragm motion structure and a mechanical roller structure, a magnet and a reed pipe are additionally arranged at the mechanical roller, and electronic counting is carried out through the matching of the reed pipe and the magnet. However, the mechanical membrane type gas meter and the electronic membrane type gas meter are complex in structure and large in size.

And the second type is an ultrasonic gas meter. The ultrasonic gas meter measures the gas flow rate by adopting the time difference method, reflects the flow rate of the fluid by measuring the difference of the speed of the ultrasonic signal during downstream and upstream propagation in the fluid, and has higher accuracy. Compared with a multi-mechanical structure of the membrane type gas meter, the ultrasonic gas meter adopts a full electronic metering mode, is not influenced by mechanical transmission abrasion, and has the advantages of simple structure, small size and good repeatability.

The existing ultrasonic gas meter consists of an upper shell, a lower shell and a control box, wherein the whole body formed by combining the upper shell and the lower shell is used as a metering chamber, and gas enters the lower shell from the upper shell and then flows out of the gas meter through the upper shell. The control box is arranged in front of the upper and lower casing combination body.

SUMMERY OF THE UTILITY MODEL

The application aims to provide an ultrasonic metering device.

In a first aspect, an embodiment of the present application provides an ultrasonic metrology apparatus, including:

the gas meter connector comprises a first shell, a second shell and a gas meter connector, wherein the first shell is provided with the gas meter connector;

the partition plate is arranged in front of the first shell, the partition plate and the first shell are connected in a sealing mode to form a metering cavity, and an ultrasonic metering module is installed in the metering cavity;

the second casing that sets up baffle the place ahead, the second casing with the baffle lid closes, the second casing with install control circuit board between the baffle.

In the above structure, the ultrasonic measuring device is mounted in a front-back combination manner, not in an up-down combination manner, and the shell combination surface of the ultrasonic measuring device is in a front-back direction, not in a height direction. Divide into two parts with whole ultrasonic wave metering equipment through the baffle, the baffle is as the measurement chamber with the sealed part that forms of the first casing combination in rear, is provided with control circuit board between baffle and the second casing in the place ahead, separates measurement part and control part through the baffle, and the fluid can get into the measurement chamber and flow out from first casing from the first casing in baffle rear, can not pass through the second casing in baffle the place ahead. The whole equipment is convenient to install and compact in structure.

In an alternative embodiment, the ultrasonic metrology module is disposed in the metrology chamber at a specified tilt mounting angle.

Therefore, the installation mode of the ultrasonic metering module is provided.

In an alternative embodiment, the angle between the installation direction of the ultrasonic metering module and the central axis of the gas meter connector ranges from 20 ° to 70 °.

Therefore, the inclined installation mode of the ultrasonic metering module is provided.

In an optional embodiment, a fixture block is arranged on the first shell, and the ultrasonic metering module is mounted on the fixture block;

the fixture block is used for limiting the installation angle of the ultrasonic metering module.

In this way, the ultrasonic metering module can be fixed.

In an optional embodiment, a valve is arranged on the gas meter connector.

The gas flow rate can be adjusted by means of a valve.

In an alternative embodiment, the control circuit board is mounted on the partition.

Through the implementation mode, the control circuit board is arranged on the partition board, so that the control circuit board is convenient to assemble and maintain.

In an optional embodiment, a battery compartment and a first battery cover hermetically connected with the battery compartment are arranged on the second shell;

a first battery is arranged in the battery bin.

Through above-mentioned implementation, can prevent that the user from taking first battery at will and then influencing the gas measurement process.

In an alternative embodiment, a second battery cover is mounted on the second housing;

the second battery cover is used for shielding the first battery cover.

Through the implementation mode, the battery can be protected.

In an alternative embodiment, a second battery is mounted on the separator.

Through the implementation mode, the standby electric energy can be provided when the first battery cannot supply power.

In an alternative embodiment, a display window is provided on the second housing.

Through the implementation mode, a user can observe the metering result through the display window.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic view of an ultrasonic metrology apparatus provided in an embodiment of the present application.

Fig. 2 is an assembly schematic view of an ultrasonic metrology apparatus provided in an embodiment of the present application.

Fig. 3 is a schematic installation diagram of an ultrasonic metering module according to an embodiment of the present disclosure.

Fig. 4 is a schematic diagram of the fitting between the partition plate and the first housing in an example provided by the embodiment of the present application.

Fig. 5 is a schematic diagram of the fitting between the partition plate and the second housing in an example provided by the embodiment of the present application.

Reference numerals: 100-a first housing; 101-an ultrasonic metering module; 102-a valve; 103-a fixture block; 200-a second housing; 201-a first battery cover; 202-a first battery; 203-a second battery cover; 300-a separator; 301-control circuit board; 302-display screen; 303-grooves; 304-a second battery; a-a bonding surface; b1 — first joint; b2 — second linker; c-a metering cavity.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The embodiments described below and the features of the embodiments can be combined with each other without conflict. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Referring to fig. 1, fig. 1 is a schematic view of an ultrasonic metrology apparatus provided in an embodiment of the present application. The ultrasonic metering device can be an ultrasonic gas meter.

In an embodiment of the present application, the ultrasonic metrology apparatus comprises: a first case 100, a second case 200, and a partition 300 (see fig. 2) between the first case 100 and the second case 200.

Wherein, be provided with gas meter connector (for short connect) on first casing 100.

The first housing 100 is provided with two joints, which are respectively designated as a first joint B1 and a second joint B2.

The fluid (gas) detected by the ultrasonic metering device can enter the inside of the first casing 100 from the outside of the first casing 100 through the first joint B1, and flow out of the inside of the first casing 100 to the outside of the first casing 100 through the second joint B2. That is, the first joint B1 and the second joint B2 can be used as a gas inlet and a gas outlet of the gas meter, respectively. In fig. 1, the arrows marked on the surface of the first housing 100 may indicate the flow direction.

The second housing 200 may serve as a faceplate portion of the overall ultrasonic metrology apparatus. The second casing 200 may be provided with a display window, and the display window may be a through hole formed in the second casing 200 or a transparent plate disposed on the second casing 200. The user may view the metering results through the display window.

The display window may be provided with a cover plate, and the cover plate and the second housing 200 may be detachably connected, for example, by a snap connection. The cover plate can protect the display window.

The first casing 100 and the second casing 200 are covered by a front-back combination mode, and a joint surface a of the first casing 100 and the second casing 200 is in the front-back direction.

In the embodiment of the present application, as shown in fig. 2, a partition 300 is disposed between the first casing 100 and the second casing 200. That is, the partition 300 is disposed in front of the first casing 100, and the second casing 200 is disposed in front of the partition 300.

The partition 300 may be covered with the first housing 100. The space formed by the sealed connection between the partition 300 and the first housing 100 serves as a metering chamber C.

An ultrasonic metering module 101 is installed in the metering cavity C.

The ultrasonic metrology module 101 may include an ultrasonic transducer. The fluid (gas) flowing through the metering chamber C can be metered by the ultrasonic metering module 101.

Wherein the second housing 200 can be covered with the partition 300.

A control circuit board 301 is mounted between the second housing 200 and the partition 300.

Alternatively, the control circuit board 301 may be mounted on the partition 300. By mounting the control circuit board 301 on the partition 300, assembly and maintenance are facilitated.

In the above-described structure, the ultrasonic measuring apparatus is mounted in a front-rear combination manner, not in an up-down combination manner, and the case joint surface a of the ultrasonic measuring apparatus is in a front-rear direction, not in a height direction. Compared with a mode of arranging the shell in a vertical combination mode (the vertical combination mode means that the assembly direction of the shell combination is the same as the direction of the fluid entering/flowing out of the metering cavity C), when the ultrasonic metering device is obtained in the front-back assembly mode shown in figures 1 and 2, the direction of the fluid entering or flowing out of the metering cavity C is perpendicular to the combination assembly direction between the shells, so that the impact force applied to the joint between the shells can be reduced, and the structural stability of the ultrasonic metering device is improved. Moreover, after the whole ultrasonic metering device is divided into two parts by the partition plate 300, the part formed by combining and sealing the partition plate 300 and the first shell 100 at the rear is used as a metering cavity C, the control circuit board 301 is arranged between the partition plate 300 and the second shell 200 at the front, and the metering part and the control part are separated by the partition plate 300, so that fluid can enter the metering cavity C from the first shell 100 at the rear of the partition plate 300 and flow out from the first shell 100 without passing through the second shell 200 at the front of the partition plate 300, and the potential safety hazard can be reduced. The whole equipment is convenient to install and maintain and has a compact structure.

Alternatively, the outer edge circumference of the second housing 200 may be greater than the outer edge circumference of the first housing 100. When the ultrasonic measuring devices are assembled in the front-back assembly manner shown in fig. 1 and 2, the rib positions or the bonding lines at the bonding positions cannot be seen from the front of the ultrasonic measuring devices.

In the embodiment of the present application, the sealing coupling surface a between the barrier 300 and the first housing 100 may be a plane.

In the present embodiment, as shown in fig. 3, the ultrasonic metrology module 101 may be set in the metrology chamber C at a specified tilt mounting angle. That is, the ultrasonic metrology module 101 may be mounted in the metrology chamber C in a non-horizontal, non-vertical manner.

The angle range between the installation direction of the ultrasonic metering module 101 and the central axis of the gas meter connector can be 20-70 degrees, so that the ultrasonic metering module 101 can be installed in an inclined mode.

The central axis between the air inlet and the air outlet of the whole ultrasonic metering device can be regarded as being parallel to the central axis of any gas meter connector, the central axis between the air inlet and the air outlet is regarded as X, and the installation direction of the whole ultrasonic metering module 101 and the central axis X can be installed at an angle of 20-70 degrees.

A fixture block 103 is disposed on the first housing 100, and the ultrasonic metering module 101 is mounted on the fixture block 103. The fixture block 103 is used for defining the installation angle of the ultrasonic metering module 101. The ultrasonic measurement module 101 can be fixed thereby.

The fixture block 103 for fixing the ultrasonic metering module 101 may be at least one raised rib for bearing the obliquely arranged ultrasonic metering module 101.

Optionally, in addition to the manner of fixing the fixture block 103, the ultrasonic metering module 101 may be fixed to the first housing 100 by a screw or a nut. For example, a perforated fastening structure may be provided on the first housing 100 and/or on the ultrasonic metering module 101, and the ultrasonic metering module 101 may be fastened by screws or nuts passing through the perforated fastening structure.

In the embodiment of the present application, a valve 102 is disposed on the gas meter connector.

Illustratively, as shown in fig. 3, a valve 102 is provided at the first joint B1 as an air inlet, and the gas flow rate can be adjusted by the valve 102.

The specific control manner of the valve 102 and the specific metering process of the ultrasonic metering module 101 should not be construed as limiting the present application. The valve 102 and the ultrasonic metering module 101 may be connected to the control circuit board 301, and the valve 102 and the ultrasonic metering module 101 may be connected to the control circuit board 301 through signal lines, for example. The signal line may be provided with a protective layer.

Referring to fig. 2, as shown in fig. 2, a battery compartment and a first battery cover 201 hermetically connected to the battery compartment may be disposed on the second housing 200. The battery compartment may be used to house a first battery 202. The first battery 202 may serve as a primary power source for the ultrasonic metering device.

A sealing ring can be arranged between the first battery cover 201 and the battery chamber.

The first battery cover 201 may be provided with a lead sealing cap, and the first battery cover 201 and the battery compartment may be sealed by the lead sealing cap.

When the first battery 202 is arranged in the battery compartment and the first battery 202 is sealed and covered in the battery compartment by the first battery 202 plate, the user can be prevented from randomly taking the battery.

Optionally, a second battery cover 203 is mounted on the second housing 200. The second battery cover 203 is used for shielding the first battery cover 201.

As an implementation manner, the second battery cover 203 may be in snap-fit connection with the second housing 200. The second housing 200 may have a protrusion, the second battery cover 203 may have a fastening portion matching the protrusion, and when the fastening portion is fastened to the protrusion, the fastening connection between the second battery cover 203 and the second housing 200 is achieved.

In another implementation, the second battery cover 203 and the second housing 200 may be connected by a fixing member, for example, a support lug may be disposed on the second battery cover 203 and the second housing 200, and the fixing member may pass through the support lug to fixedly connect the second battery cover 203 and the second housing 200. The fixing member may be a screw, a nut, or the like.

The double protection of the battery can be realized through the second battery cover 203, and the dustproof effect is realized.

Optionally, referring to fig. 4, a second battery 304 may be mounted on the separator 300. The second battery 304 may serve as a backup power source for the ultrasonic metering device. Thereby providing backup power when the first battery 202 is not available.

When the first housing 100, the separator 300, and the second housing 200 are assembled, the second battery 304 is packaged in the ultrasonic metering device.

As an implementation manner of fixing the second battery 304, a fixing block may be used to fix the second battery 304. The fixing blocks may be ribs protruding from the partition 300.

In one example, the battery and the control circuit board 301 may be fixed by 3 fixing blocks at the same time. One of the three fixing blocks is a common fixing block, and the common fixing block may include two fixing regions, one of which is used to fix the second battery 304 and the other of which is used to fix the control circuit board 301. The fixing blocks for fixing the control circuit board 301 may be distributed at diagonal positions of the control circuit board 301, and the fixing blocks for fixing the second battery 304 may be distributed at diagonal positions of the second battery 304.

As another implementation manner for fixing the second battery 304, a containing groove may be formed on the partition 300, and the containing groove is used for containing and fixing the second battery 304.

Optionally, referring to fig. 4 and 5, a groove 303 may be formed in the partition 300 in a recessed manner, and the shape of the groove 303 matches the shape of the battery compartment on the second housing 200, so that when the second housing 200 provided with the battery compartment is combined with the partition 300 and the first housing 100 to form the ultrasonic metering device, the structure is more compact, the distance between the second housing 200 and the partition 300 may be reduced, and the volume of the whole device may be reduced.

Optionally, a display screen 302 may be disposed on the control circuit board 301, and the display screen 302 may be used to display the measurement result of the ultrasonic measurement device.

The control circuit board 301 may further be provided with an indicator light, a buzzer, and the like. The working state of the ultrasonic metering equipment can be indicated through the indicator lamp. The alarm can be given through the buzzer.

Optionally, a wiring structure may be disposed on the control circuit board 301, and the wiring structure may be used to connect signal lines.

The second housing 200 may be provided with a lamp hole, and the position of the lamp hole corresponds to the position of the indicator lamp.

Optionally, a reinforcing rib may be disposed on the first casing 100, the partition 300 and/or the second casing 200, for example, a reinforcing rib may be disposed on a surface of the partition 300 facing the first casing 100, or a reinforcing rib may be disposed on a surface of the second casing 200 facing the partition 300. The deformation of the ultrasonic metering equipment can be avoided by arranging the reinforcing ribs.

In one example, a sealing ring is disposed between the partition 300 and the first housing 100. The partition 300 and the first casing 100 may be fastened and fixed by a plurality of screws. The partition 300 and the second housing 200 may be fastened and fixed by a plurality of screws.

For example, the partition 300 and the first casing 100 may be fastened and fixed by 10 screws, and the partition 300 and the second casing 200 may be fixed by four screws.

In summary, when the ultrasonic metering device provided in the embodiment of the present application is used for gas metering, each component of the ultrasonic metering device is fixed in a front-back combination installation manner, the partition 300 divides the area between the first casing 100 and the second casing 200 into two parts, the area formed by sealing between the partition 300 and the rear first casing 100 is used as a metering chamber C, the metering chamber C is provided with the valve 102 and the ultrasonic metering module 101, and the ultrasonic metering module 101 is obliquely arranged in the metering chamber C. The control circuit board 301, the battery and other components are installed in the area in front of the partition 300, the control circuit board 301 can be installed on the partition 300, and the whole ultrasonic metering device is compact in structure and high in structural stability. When the second housing 200 covers the partition 300 and the first housing 100, the user cannot see bonding lines or ribs when looking from the front of the ultrasonic metering device toward the back of the first housing 100, providing a structure different from the prior art ultrasonic metering device.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the utility model product is conventionally placed in use, and are used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. The specific meaning of the above terms in the present application can be understood in specific cases to those skilled in the art.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The above embodiments are merely examples of the present application and are not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. An ultrasonic metrology apparatus, comprising:

the gas meter connector comprises a first shell, a second shell and a gas meter connector, wherein the first shell is provided with the gas meter connector;

the partition plate is arranged in front of the first shell, the partition plate and the first shell are connected in a sealing mode to form a metering cavity, and an ultrasonic metering module is installed in the metering cavity;

the second casing that sets up baffle the place ahead, the second casing with the baffle lid closes, the second casing with install control circuit board between the baffle.

2. The ultrasonic metrology apparatus of claim 1 wherein the ultrasonic metrology module is disposed in the metrology chamber at a specified oblique mounting angle.

3. The ultrasonic metering apparatus of claim 2, wherein an angle between the installation direction of the ultrasonic metering module and the central axis of the gas meter connector is in a range of 20 to 70 °.

4. The ultrasonic metering device of claim 2, wherein a fixture block is disposed on the first housing, and the ultrasonic metering module is mounted on the fixture block;

the fixture block is used for limiting the installation angle of the ultrasonic metering module.

5. The ultrasonic metering device of claim 1, wherein a valve is disposed on the gas meter connector.

6. The ultrasonic metrology apparatus of claim 1 wherein the control circuit board is mounted on the bulkhead.

7. The ultrasonic metering device of claim 1, wherein the second housing is provided with a battery chamber and a first battery cover hermetically connected with the battery chamber;

a first battery is arranged in the battery bin.

8. The ultrasonic metering device of claim 7, wherein a second battery cover is mounted on the second housing;

the second battery cover is used for shielding the first battery cover.

9. The ultrasonic metrology apparatus of claim 1 wherein a second battery is mounted on the spacer.

10. The ultrasonic metrology apparatus of claim 1 wherein the second housing has a display window disposed thereon.

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