Self-cleaning ultrasonic gas meter

Abstract

The utility model discloses a self-cleaning ultrasonic gas meter which comprises a gas meter shell, a pipeline is arranged in the gas meter shell, a self-cleaning device is arranged on the pipeline, and the self-cleaning device comprises an installation cavity. A vibration assembly is arranged in the mounting cavity; the vibration assembly comprises a mounting plate, a connecting column and an impact part; one end of the connecting column is fixedly arranged on the mounting plate, and the other end of the connecting column is fixedly connected with the impact part which is used for impacting the outer wall of the pipeline to trigger vibration. According to the gas meter, dirt and sediments in the pipeline can be effectively removed through impact and vibration generated by the vibration assembly, smoothness of the pipeline is guaranteed, and the measuring precision and reliability of the gas meter are improved. And the clean pipeline can reduce the flowing resistance of the gas and improve the flow metering precision of the gas meter, so that the utilization efficiency of the gas is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas meter cleaning technical field, concretely is a kind of self-cleaning ultrasonic gas meter. BACKGROUND

[0002] Compared with traditional diaphragm gas meter, ultrasonic gas meter has the characteristics of high accuracy, good reliability and strong real-time, and selecting ultrasonic gas meter will become the trend in gas metering field, and the transducer of ultrasonic gas meter is the core component of ultrasonic gas meter, responsible for transmitting and receiving ultrasonic signal, is the key factor influencing the measurement accuracy of ultrasonic gas meter.The sensitivity of transducer is one of the main performance indexes of transducer, when transducer works for a long time, some dust and / or liquid impurities will be attached on the ultrasonic emission and reception surface of transducer matching layer, so that the sensitivity of transducer is reduced, thereby causing the amplitude of transmitted and received ultrasonic wave to drop, and affecting the accuracy of measurement.

[0003] In the prior art, for example, the technical solution recorded in the patent with publication number CN217980427U: a self-cleaning structure of ultrasonic gas meter transducer, including flow channel and at least one pair of transducers, at least one pair of cleaning air blowing devices are arranged on the flow channel, the air outlet of the cleaning air blowing device corresponds to the transducer matching layer ultrasonic emission and reception surface of the transducer.The air inlet of the gas source channel of the cleaning air blowing device is communicated with the flow channel, and the air outlet of the gas source channel is arranged at the inlet negative pressure position of the cleaning air blowing device.

[0004] At present, most of various ultrasonic gas meters designed and developed in China do not have self-cleaning device, or some are realized by mechanical structure blowing mode, and these modes have great difficulty in realization, and there is airflow in the gas meter itself, which is essentially the same as blowing mode, and cannot bring the optimal self-cleaning function. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of self-cleaning ultrasonic gas meter to solve the problems of great difficulty in realization of self-cleaning of gas meter by mechanical structure blowing mode in prior art.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0007] A kind of self-cleaning ultrasonic gas meter, including gas meter shell, pipe is arranged in the inside of gas meter shell, self-cleaning device is arranged on pipe, and pipe is cleaned by self-cleaning device, and self-cleaning device includes mounting cavity and connecting pipe;

[0008] The installation cavity and the connecting pipe are fixedly connected, the connecting pipe is sleeved outside the pipeline; a driving motor, a rotating disc, a push rod and a vibration assembly are arranged inside the installation cavity; the driving motor is fixedly connected with the rotating disc, and the rotating disc is rotatably connected with one end of the push rod; the other end of the push rod is connected with the vibration assembly.

[0009] The vibration assembly comprises a mounting plate, a connecting column and a striking part; the mounting plate is rotatably connected with the push rod; one end of the connecting column is fixedly arranged on the mounting plate, and the other end of the connecting column is fixedly connected with the striking part; the striking part is used for striking the outer wall of the pipeline to cause vibration, so that the interior of the pipeline is cleaned.

[0010] According to the above technical scheme, the first connecting flange is arranged on the outer wall of the pipeline; and the first connecting flange is connected with the pipeline through threads.

[0011] According to the above technical scheme, the second connecting flange matched with the first connecting flange is arranged at the end of the connecting pipe; and the first connecting flange and the second connecting flange are connected through bolts.

[0012] According to the above technical scheme, the second connecting flange is fixedly connected with the connecting pipe.

[0013] According to the above technical scheme, the rotating disc is provided with a connecting rod, the connecting rod is rotatably connected with the end of the push rod, and the connecting rod is used for driving the push rod to reciprocate.

[0014] According to the above technical scheme, the two ends of the mounting plate are provided with sliding grooves, and the inner wall of the installation cavity is provided with sliding rails matched with the sliding grooves; through the cooperation of the sliding grooves and the sliding rails, the mounting plate is slidably connected with the installation cavity.

[0015] According to the above technical scheme, the installation cavity is arranged in a downward inclination.

[0016] According to the above technical scheme, two sets of the installation cavity, the driving motor, the rotating disc, the push rod and the vibration assembly are arranged; and the two sets of the installation cavity, the driving motor, the rotating disc, the push rod and the vibration assembly are arranged on the upper side and the lower side of the connecting pipe respectively.

[0017] According to the above technical scheme, the connecting column and the striking part are provided with a plurality of connecting columns and striking parts; and the plurality of connecting columns and striking parts are arranged at equal intervals on the mounting plate.

[0018] According to the above technical scheme, the striking part is made of plastic or rubber material.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] In the utility model, the impact and vibration produced by the vibration assembly can effectively remove dirt and deposits inside the pipeline, ensure the smoothness of the pipeline, and improve the measurement accuracy and reliability of the gas meter. The clean pipeline can reduce the resistance of gas flow, improve the flow measurement accuracy of the gas meter, and thus improve the utilization efficiency of gas. Regular self-cleaning function can slow down the wear caused by dirt deposition, reduce equipment failure rate, and prolong the service life of the gas meter.

[0021] The device in the utility model reduces the frequency and cost of manual maintenance through automatic cleaning, saves maintenance cost and time for the user, and improves overall economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an internal schematic view of the gas meter shell in the utility model;

[0023] Figure 2 It is an internal schematic view of the self-cleaning device in the utility model;

[0024] Figure 3 It is an external schematic view of the self-cleaning device in the utility model.

[0025] Mark in the figure: 100-gas meter shell, 200-pipeline, 300-mounting cavity, 400-connection pipe, 500-driving motor, 600-rotating disc, 700-push rod, 800-mounting plate, 900-connection column, 110-impact part, 111-first connection flange, 112-second connection flange, 113-connecting rod, 114-slotted guide, 115-slotted rail. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] Embodiment one

[0028] As shown in Figure 1 A self-cleaning ultrasonic gas meter, comprising a gas meter shell 100, a pipeline 200 is arranged in the interior of the gas meter shell 100, a self-cleaning device is arranged on the pipeline 200, the pipeline 200 is cleaned through the self-cleaning device, the self-cleaning device comprises a mounting cavity 300 and a connection pipe 400;

[0029] As shown in Figure 2As shown, the mounting cavity 300 and the connecting pipe 400 are fixedly connected, and the connecting pipe 400 is sleeved outside the pipeline 200; the driving motor 500, the rotating disc 600, the push rod 700 and the vibration assembly are arranged inside the mounting cavity 300; the driving motor 500 is fixedly connected with the rotating disc 600, and the rotating disc 600 is rotatably connected with one end of the push rod 700; the other end of the push rod 700 is connected with the vibration assembly;

[0030] The vibration assembly comprises a mounting plate 800, a connecting column 900 and a striking part 110; the mounting plate 800 is rotatably connected with the push rod 700; one end of the connecting column 900 is fixedly arranged on the mounting plate 800, and the other end of the connecting column 900 is fixedly connected with the striking part 110; the striking part 110 is used for striking the outer wall of the pipeline 200 to cause vibration, so that the inside of the pipeline 200 is cleaned.

[0031] In the utility model, through the impact and vibration generated by the vibration assembly, the dirt and deposits inside the pipeline 200 can be effectively removed, the pipeline 200 is ensured to be unobstructed, the measurement accuracy and reliability of the gas meter are improved. The cleaned pipeline 200 can reduce the resistance of gas flow, improve the flow measurement accuracy of the gas meter, and thus improve the utilization efficiency of gas. The regular self-cleaning function can slow down the wear caused by dirt deposition, reduce the equipment failure rate, and prolong the service life of the gas meter.

[0032] The device in the utility model can automatically clean, reduce the frequency and cost of manual maintenance, save maintenance cost and time for users, and improve overall economic benefits.

[0033] Embodiment two

[0034] This embodiment is a further refinement of embodiment one.

[0035] As Figure 3 As shown, the first connecting flange 111 is arranged on the outer wall of the pipeline 200 and connected with the pipeline 200 through threads. The second connecting flange 112 is arranged at the end of the connecting pipe 400 and matched with the first connecting flange 111, and the first connecting flange 111 and the second connecting flange 112 are connected through bolts.

[0036] In one embodiment, a thread is arranged on the outer wall of the pipeline 200, the first flange is fixed through the thread, the first flange is fixedly connected with the pipeline 200, the second flange is fixedly connected with the first flange, the self-cleaning device is fixedly connected with the pipeline 200, and the self-cleaning device can clean the pipeline 200.

[0037] Further, the first flange is fixed with the pipeline 200 by setting threads on the outer wall of the pipeline 200 and connecting with the first flange through the threads. The connection can be completed without adjusting the internal structure of the pipeline 200, only the threads are added on the outer wall of the pipeline 200, the processing difficulty of the pipeline 200 is not increased, and the internal gas flow of the pipeline 200 is not affected.

[0038] The second connecting flange 112 is fixedly connected with the connecting pipe 400.

[0039] In an embodiment, as shown in Figure 3 both ends of the connecting pipe 400 are provided with the second flange. When the self-cleaning device is installed, first, the first flange is sleeved on the pipeline 200 and fixed with the pipeline 200 through threads; then the one end of the self-cleaning device is fixedly connected with the first flange through bolts; finally, the other first flange is connected with the pipeline 200 through threads, and the second flange at the other end of the self-cleaning device is fixedly connected with the first flange through bolts, to complete the installation of the self-cleaning device.

[0040] As shown in Figure 2 the connecting rod 113 is arranged on the rotating disc 600 and rotationally connected with the end of the push rod 700, and the connecting rod 113 is arranged on one side close to the edge of the rotating disc 600, so that the connecting rod 113 can drive the push rod 700 to reciprocate when the connecting rod 113 rotates with the rotating disc 600.

[0041] Specifically, the connecting rod 113 is arranged on the rotating disc 600 and close to the edge of the rotating disc 600, so that the connecting rod 113 can drive the push rod 700 to reciprocate when the connecting rod 113 rotates with the rotating disc 600. Thus, the vibration assembly is driven to impact the outer wall of the pipeline 200, so that the pipeline 200 vibrates and the impurities accumulated on the outer wall of the pipeline 200 are shaken off, and the impurities in the pipeline 200 are blown out by the gas flowing in the pipeline 200, to ensure the cleaning of the pipeline 200.

[0042] As shown in Figure 2 both ends of the mounting plate 800 are provided with the sliding groove 114, and the sliding rail 115 matched with the sliding groove 114 is arranged on the inner wall of the mounting cavity 300. The mounting plate 800 is slidingly connected with the mounting cavity 300 through the cooperation of the sliding groove 114 and the sliding rail 115.

[0043] Specifically, the sliding groove 114 is arranged on the mounting plate 800, and the sliding rail 115 is arranged in the mounting cavity 300. The friction between the mounting plate 800 and the mounting cavity 300 is reduced through the cooperation of the sliding rail 115 and the sliding groove 114. The mounting plate 800 has a fixed moving path when reciprocating, so that the impact part 110 can impact the outer wall of the pipeline 200.

[0044] As Figure 2 The installation cavity 300 is arranged downwardly inclined.

[0045] Specifically, by arranging the installation cavity downwardly inclined, the space occupation of the installation cavity can be reduced, and the influence of the installation cavity on other components in the gas meter shell 100 can be avoided.

[0046] The installation cavity 300, the driving motor 500, the rotating disc 600, the push rod 700 and the vibration assembly are provided with two sets, and the two sets of installation cavity 300, driving motor 500, rotating disc 600, push rod 700 and vibration assembly are arranged on the upper and lower sides of the connecting pipe 400.

[0047] Specifically, by arranging one set of installation cavity 300, driving motor 500, rotating disc 600 and push rod 700 and vibration assembly on the upper and lower sides of the pipeline 200 respectively, the impurities attached to the upper and lower sides of the pipeline 200 are vibrated and loosened by impacting the pipeline 200 from the upper and lower sides. The gas flowing through the inside of the pipeline 200 blows off the impurities to complete the cleaning of the pipeline 200.

[0048] The connecting column 900 and the impact part 110 are provided with a plurality of connecting columns 900 and impact parts 110, and the plurality of connecting columns 900 and impact parts 110 are arranged at equal intervals on the mounting plate 800. The impact part 110 is made of plastic or rubber material.

[0049] Specifically, as Figure 2 The connecting column 900 and the impact part 110 are arranged inclined, so that the plurality of impact parts 110 arranged can impact the outer wall of the pipeline 200 and impact the outer wall of the pipeline 200 at different positions.

[0050] Further, the impact part 110 is made of plastic or rubber material, so as to avoid that the impact part 110 is too hard and causes damage to the outer wall of the pipeline 200 when impacting.

[0051] Further, the stroke of the impact part 110 is not too long, and is generally set to 5-10mm; the impurities attached to the inside of the pipeline 200 are shaken off by the relatively slight impact.

[0052] The working principle of the utility model is as follows: when installing the self-cleaning device, first, a first flange is sleeved on the pipeline 200 and fixed with the pipeline 200 through threads; then one end of the self-cleaning device is fixedly connected with the first flange through bolts; finally, the other first flange is connected with the pipeline 200 through threads, and the second flange at the other end of the self-cleaning device is fixedly connected with the first flange through bolts, thereby completing the installation of the self-cleaning device.

[0053] By setting a set of installation cavity 300, driving motor 500, rotating disc 600 and push rod 700 and vibration assembly on the upper and lower sides of the pipeline 200 respectively, the impurities attached to the upper and lower sides of the pipeline 200 are vibrated and shaken off from the inner wall of the pipeline 200 by impacting the pipeline 200 from the upper and lower sides; the impurities are blown away by the gas flowing inside the pipeline 200, and the cleaning of the pipeline 200 is completed.

[0054] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0055] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or to the equivalent replacement of some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A self-cleaning ultrasonic gas meter comprising a gas meter housing (100), characterised in that: The pipeline (200) is provided with a self-cleaning device, the pipeline (200) is cleaned through the self-cleaning device, the self-cleaning device comprises a mounting cavity (300) and a connecting pipe (400); The mounting cavity (300) and the connecting pipe (400) are fixedly connected, the connecting pipe (400) is sleeved outside the pipeline (200); a driving motor (500), a rotating disc (600), a push rod (700) and a vibration assembly are arranged in the mounting cavity (300); the driving motor (500) is fixedly connected with the rotating disc (600), and the rotating disc (600) is rotatably connected with one end of the push rod (700); The other end of the push rod (700) is connected with the vibration assembly; two sets of the mounting cavity (300), the driving motor (500), the rotating disc (600), the push rod (700) and the vibration assembly are arranged, and the two sets of the mounting cavity (300), the driving motor (500), the rotating disc (600), the push rod (700) and the vibration assembly are arranged on the upper side and the lower side of the connecting pipe (400) respectively; The vibration assembly comprises a mounting plate (800), a connecting column (900) and a striking part (110); the mounting plate (800) is rotatably connected with the push rod (700); one end of the connecting column (900) is fixedly arranged on the mounting plate (800), and the other end of the connecting column (900) is fixedly connected with the striking part (110); the striking part (110) is used for striking the outer wall of the pipeline (200) to cause vibration; a plurality of connecting columns (900) and striking parts (110) are arranged at equal intervals on the mounting plate (800).

2. A self-cleaning ultrasonic gas meter according to claim 1, wherein: A first connecting flange (111) is arranged on the outer wall of the pipeline (200); the first connecting flange (111) is connected with the pipeline (200) through threads.

3. A self-cleaning ultrasonic gas meter according to claim 2, wherein: A second connecting flange (112) matched with the first connecting flange (111) is arranged at the end of the connecting pipe (400), and the first connecting flange (111) and the second connecting flange (112) are connected through bolts.

4. A self-cleaning ultrasonic gas meter according to claim 3, wherein: The second connecting flange (112) is fixedly connected with the connecting pipe (400).

5. A self-cleaning ultrasonic gas meter according to claim 4, wherein: A connecting rod (113) is arranged on the rotating disc (600), the connecting rod (113) is rotatably connected with the end of the push rod (700), and the connecting rod (113) is used for driving the push rod (700) to reciprocate.

6. A self-cleaning ultrasonic gas meter according to claim 5, wherein: Sliding grooves (114) are arranged at the two ends of the mounting plate (800), sliding rails (115) matched with the sliding grooves (114) are arranged on the inner wall of the mounting cavity (300), and the mounting plate (800) is slidably connected with the mounting cavity (300) through cooperation of the sliding grooves (114) and the sliding rails (115).

7. A self-cleaning ultrasonic gas meter according to claim 6, wherein: The mounting cavity (300) is downwardly inclined.

8. The self-cleaning ultrasonic gas meter of claim 1, wherein: The striking part (110) is made of plastic or rubber material.

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