CN215811034U

CN215811034U - Ultrasonic gas meter with built-in filtering system

Info

Publication number: CN215811034U
Application number: CN202121937194.XU
Authority: CN
Inventors: 韩子谦
Original assignee: Shanghai Yu Pei Electronic Technology Ltd
Current assignee: Shanghai Yu Pei Electronic Technology Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-11
Anticipated expiration: 2031-08-18

Abstract

The utility model belongs to the technical field of ultrasonic gas meters, and particularly discloses an ultrasonic gas meter with a built-in filtering system, which comprises an ultrasonic gas meter body, wherein the top of the ultrasonic gas meter body is provided with a gas outlet, and the bottom of the ultrasonic gas meter body is provided with a gas inlet; one end, away from the ultrasonic gas meter body, of the gas inlet is connected with a vent pipe through a flange plate, a filtering system is arranged in the vent pipe, the filtering system comprises a filtering frame, upper through grooves are formed in the front side and the rear side of the filtering frame, the two upper through grooves are communicated, and the same fine filtering screen plate is embedded in the two upper through grooves; lower through grooves are formed in the front side and the rear side of the filter frame and below the upper through grooves, the two lower through grooves are communicated, and the same coarse filter screen plate is embedded in the two lower through grooves; one end of the filter frame is fixedly connected with a clamping block, and the other end of the filter frame is fixedly connected with a fixing block; one side of the fixing block, which is far away from the filter frame, extends to the outside of the vent pipe and is fixed through the fixing component; the utility model has good filtering effect and is convenient to remove and clean.

Description

Ultrasonic gas meter with built-in filtering system

Technical Field

The utility model relates to the technical field of ultrasonic gas meters, in particular to an ultrasonic gas meter with a built-in filtering system.

Background

Natural gas becomes the first choice of domestic energy structures as a clean, efficient and high-quality energy. With the wide use of natural gas, how to realize fair measurement is particularly important when the gas meter is used for measuring urban natural gas users. Along with the construction and popularization of gas transmission pipelines, gas meters emerge like bamboo shoots in spring after rain, new concepts and new technologies continue to emerge from mechanical type to electronic type, traditional membrane type meters to all-electronic ultrasonic gas meters, the accuracy and the application range of various flow meters are also continuously improved, and ultrasonic meters gradually move from the industrial field to the household field due to the advantages of advanced technology and easy intellectualization. In particular, in recent years, ultrasonic gas meters are exposing head corners in the gas meter market with strong potential, however, the ultrasonic gas meters are all electronic meters, the ultrasonic gas meters rely on paired transducers to detect time difference so as to calculate gas flow velocity and flow, and the occurrence of polluted dust in gas has great influence on metering.

When the existing ultrasonic gas meter is used, a filtering system is usually configured to filter the gas meter, however, the existing gas filtering system only filters once, and the filtering effect is poor. In addition, the existing gas filtering system is not convenient to disassemble and clean, and then the filtering effect can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ultrasonic gas meter with a built-in filtering system to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an ultrasonic gas meter with a built-in filtering system comprises an ultrasonic gas meter body, wherein a gas outlet is formed in the top of the ultrasonic gas meter body, and a gas inlet is formed in the bottom of the ultrasonic gas meter body; one end, away from the ultrasonic gas meter body, of the gas inlet is hermetically connected with a vent pipe through a flange plate, a filtering system is arranged in the vent pipe, the filtering system comprises a filtering frame, upper through grooves are formed in the front side and the rear side of the filtering frame, the two upper through grooves are communicated, and the same fine filtering screen plate is embedded in the two upper through grooves; lower through grooves are formed in the front side and the rear side of the filter frame and below the upper through grooves, the two lower through grooves are communicated, and the same coarse filter screen plate is embedded in the two lower through grooves; one end of the filter frame is fixedly connected with a clamping block, and the other end of the filter frame is fixedly connected with a fixing block; the fixture block is clamped with a clamping groove in the inner side wall of the vent pipe, and one side, away from the filter frame, of the fixture block extends to the outside of the vent pipe and is fixed through the fixing component.

Preferably, the breather pipe is provided with an extension groove, the inner wall of the extension groove is paved with a sealing rubber layer, and the fixing block penetrates through the extension groove and is in sliding connection with the sealing rubber layer.

Preferably, the fixing assembly comprises a bottom plate, the bottom plate is positioned below the fixing block, and one side of the bottom plate is fixedly connected with the outer side wall of the vent pipe; the bottom plate is penetrated with a positioning insertion rod, the top end of the positioning insertion rod is inserted into a positioning insertion groove in the bottom of the fixed block, the bottom end of the positioning insertion rod is fixedly connected with a connecting pull plate, a reset spring is arranged between the pull plate and the bottom plate, and the reset spring is movably sleeved outside the positioning insertion rod.

Preferably, the upper side and the lower side of the bottom plate are provided with through holes which are communicated with each other, and the positioning inserted rod is arranged in the through holes and is in sliding connection with the through holes.

Compared with the prior art, the utility model has the beneficial effects that:

1. the ultrasonic gas meter body can effectively filter the gas flowing into the ultrasonic gas meter body by utilizing the fine filter screen plate and the coarse filter screen plate, and the filtering effect is good by filtering twice, so that the metering accuracy of the ultrasonic gas meter body can be ensured.

2. When the fine filter screen plate and the coarse filter screen plate are cleaned, the positioning insertion rods are pulled out of the positioning insertion grooves through the pulling plates, so that the fixing of the fixing blocks can be released, the filter frame can be pulled out through the fixing blocks after the fixing blocks are released, the fine filter screen plate and the coarse filter screen plate are taken out of the filter frame, the fine filter screen plate and the coarse filter screen plate can be cleaned conveniently, the operation is simple, and the filter effect of the fine filter screen plate and the coarse filter screen plate can be ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a filter frame according to the present invention;

FIG. 3 is a schematic structural diagram of a fine filter screen plate according to the present invention;

FIG. 4 is a schematic structural diagram of a coarse filter screen plate according to the present invention;

fig. 5 is a partially enlarged schematic view of the present invention.

In the figure: 1. an ultrasonic gas meter body; 2. an air outlet; 3. an air inlet; 4. a breather pipe; 5. a filter frame; 6. an upper through groove; 7. fine filter screen plate; 8. a lower through groove; 9. coarse filter screen plate; 10. a clamping block; 11. a fixed block; 12. a card slot; 13. an extension groove; 14. a sealing rubber layer; 15. a base plate; 16. positioning the inserted rod; 17. positioning the slot; 18. pulling a plate; 19. a return spring; 20. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-5, the present invention provides a technical solution: an ultrasonic gas meter with a built-in filtering system comprises an ultrasonic gas meter body 1, wherein a gas outlet 2 is arranged at the top of the ultrasonic gas meter body 1, and a gas inlet 3 is arranged at the bottom of the ultrasonic gas meter body 1; one end, far away from the ultrasonic gas meter body 1, of the gas inlet 3 is hermetically connected with a vent pipe 4 through a flange plate, a filtering system is arranged in the vent pipe 4 and comprises a filtering frame 5, upper through grooves 6 are formed in the front side and the rear side of the filtering frame 5, the two upper through grooves 6 are communicated, and the same fine filtering screen plate 7 is embedded in the two upper through grooves 6; lower through grooves 8 are formed in the front side and the rear side of the filter frame 5 and below the upper through grooves 6, the two lower through grooves 8 are communicated, and the same coarse filter screen plate 9 is embedded in the two lower through grooves 8; one end of the filter frame 5 is fixedly connected with a clamping block 10, and the other end of the filter frame is fixedly connected with a fixing block 11; the clamping block 10 is clamped with a clamping groove 12 on the inner side wall of the vent pipe 4 and used for improving the stability of the filter frame 5, and one side, far away from the filter frame 5, of the fixing block 11 extends to the outside of the vent pipe 4 and is fixed through a fixing component.

Furthermore, an extension groove 13 is formed in the vent pipe 4, a sealing rubber layer 14 is laid on the inner wall of the extension groove 13, and the fixing block 11 penetrates through the extension groove 13 and is in sliding connection with the sealing rubber layer 14, so that the sealing performance of the extension groove 13 is improved, and gas leakage is avoided.

Further, the fixing component comprises a bottom plate 15, the bottom plate 15 is positioned below the fixing block 11, and one side of the bottom plate 15 is fixedly connected with the outer side wall of the vent pipe 4; the bottom plate 15 is penetrated with a positioning insertion rod 16, the top end of the positioning insertion rod 16 is inserted into a positioning slot 17 at the bottom of the fixed block 11, the bottom end of the positioning insertion rod 16 is fixedly connected with a connecting pull plate 18, a return spring 19 is arranged between the pull plate 18 and the bottom plate 15, and the return spring 19 is movably sleeved outside the positioning insertion rod 16.

Furthermore, the upper side and the lower side of the bottom plate 15 are provided with through holes 20 which are communicated with each other, and the positioning insertion rod 16 is arranged in the through hole 20 and is connected with the through hole 20 in a sliding manner.

The working principle is as follows: when the ultrasonic gas meter is used, the gas flowing into the ultrasonic gas meter body 1 is effectively filtered by the fine filter screen plate 7 and the coarse filter screen plate 9, and the filtering effect is good due to twice filtering, so that the metering accuracy of the ultrasonic gas meter body 1 can be ensured;

after the filter frame is used for a long time, the positioning insertion rod 16 is pulled through the pulling plate 18, the positioning insertion rod 16 is pulled out from the positioning slot 17 at the bottom of the fixing block 11 and can be pulled out, the fixing of the fixing block 11 can be released, after the release, the filter frame 5 is pulled out from the vent pipe 4 through the fixing block 11, after the pulling out, one side of the fine filter screen plate 7 and the coarse filter screen plate 9 is propped against by a hand, the fine filter screen plate 7 and the coarse filter screen plate 9 are pushed to move, the other side of the fine filter screen plate 7 and the coarse filter screen plate 9 penetrates through the upper through groove 6 and the lower through groove 8, and the fine filter screen plate 7 and the coarse filter screen plate 9 are pulled out from the filter frame 5 through the penetrated side, so that the fine filter screen plate 7 and the coarse filter screen plate 9 can be conveniently cleaned, the operation is simple, and the filtering effect of the fine filter screen plate 7 and the coarse filter screen plate 9 can be ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An ultrasonic gas meter with a built-in filtering system is characterized by comprising an ultrasonic gas meter body (1), wherein a gas outlet (2) is formed in the top of the ultrasonic gas meter body (1), and a gas inlet (3) is formed in the bottom of the ultrasonic gas meter body (1); one end, far away from the ultrasonic gas meter body (1), of the gas inlet (3) is hermetically connected with a vent pipe (4) through a flange plate, a filtering system is arranged in the vent pipe (4), the filtering system comprises a filtering frame (5), upper through grooves (6) are formed in the front side and the rear side of the filtering frame (5), the two upper through grooves (6) are communicated, and the same fine filtering screen plate (7) is embedded in the two upper through grooves (6); lower through grooves (8) are formed in the front side and the rear side of the filter frame (5) and below the upper through grooves (6), the two lower through grooves (8) are communicated, and the same coarse filter screen plate (9) is embedded in the two lower through grooves (8); one end of the filter frame (5) is fixedly connected with a clamping block (10), and the other end of the filter frame is fixedly connected with a fixing block (11); the clamping block (10) is clamped with a clamping groove (12) in the inner side wall of the vent pipe (4), and one side, far away from the filter frame (5), of the fixing block (11) extends to the outside of the vent pipe (4) and is fixed through the fixing component.

2. The ultrasonic gas meter with the built-in filtering system according to claim 1, wherein: the ventilation pipe (4) is provided with an extension groove (13), a sealing rubber layer (14) is laid on the inner wall of the extension groove (13), and the fixing block (11) penetrates through the extension groove (13) and is connected with the sealing rubber layer (14) in a sliding mode.

3. The ultrasonic gas meter with the built-in filtering system according to claim 1, wherein: the fixing component comprises a bottom plate (15), the bottom plate (15) is positioned below the fixing block (11), and one side of the bottom plate (15) is fixedly connected with the outer side wall of the vent pipe (4); the bottom plate (15) is provided with a positioning insertion rod (16) in a penetrating manner, the top end of the positioning insertion rod (16) is connected with a positioning insertion slot (17) in the bottom of the fixed block (11) in a plugging manner, the bottom end of the positioning insertion rod (16) is fixedly connected with a connecting pull plate (18), a return spring (19) is arranged between the pull plate (18) and the bottom plate (15), and the return spring (19) is movably sleeved outside the positioning insertion rod (16).

4. The ultrasonic gas meter with the built-in filtering system according to claim 3, wherein: the upper side and the lower side of the bottom plate (15) are provided with through holes (20) which are communicated with each other, and the positioning inserted rod (16) is arranged in the through holes (20) and is in sliding connection with the through holes (20).