Built-in filtering system of ultrasonic gas meter

Abstract

The invention relates to the technical field of ultrasonic gas meters, and discloses a built-in filtering system of an ultrasonic gas meter, the built-in filtering system comprises a filtering mechanism, the filtering mechanism comprises a first filtering system, the lower end of the first filtering system is provided with a first Tesla valve, and the bottom end of the first Tesla valve is fixedly connected with a second filtering system; the lower end of the second filtering system is in threaded connection with a dust collector, an air inlet is formed in the outer side of the filtering mechanism, the lower end of the air inlet is fixedly connected with a meter body, and the lower end of the meter body is fixedly connected with an air outlet. Multi-stage filtering can be achieved through the first filtering system and the second filtering system, dust can be automatically discharged through the first Tesla valve and the second filtering system, dust can be automatically collected through the dust collector, the dust collector can prevent the collected dust from entering filtered gas any more, and the use cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic gas meters, in particular to a built-in filtering system of an ultrasonic gas meter. Background Art

[0002] Ultrasonic gas meters measure gas flow using ultrasonic technology and can provide high-precision measurement results. The built-in filtration system is used to ensure that the measurement channel is not contaminated or blocked, thereby ensuring the accuracy and stability of the measurement. The filtration system helps prevent particles or impurities in the gas from entering the meter. These particles may damage the ultrasonic sensor or affect the operation of the measurement system, so the filtration system plays an important role in protecting the meter. Through an effective filtration system, ultrasonic gas meters can reduce maintenance requirements and failure rates. This design can improve the long-term reliability and durability of the gas meter and reduce operating costs.

[0003] However, the filtration system of advanced ultrasonic gas meters generally only uses one filter screen, which makes the device unable to filter particles in the gas well, resulting in insufficient filtration. Secondly, due to long-term use and long-term adsorption of particles, many traditional ultrasonic gas meter filters are disposable, which increases costs. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a built-in filtering system for an ultrasonic gas meter, which solves the problems of insufficient filtration, high cost of use, lack of automatic cleaning function of the filter, and inconvenient maintenance in the traditional filtering system.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a built-in filtering system of an ultrasonic gas meter, comprising a filtering mechanism, The filtering mechanism includes a first filtering system, the first filtering system can filter the gas for the first time, and a Tesla valve 1 is arranged at the lower end of the first filtering system, and the first filtering system can prevent the Tesla valve 1 from being blocked; The Tesla valve 1 can accelerate the gas, and the bottom end of the Tesla valve 1 is fixedly connected to a second filtering system; The second filter system can filter the gas for the second time to ensure the service life of the meter body, and the second filter system can automatically remove dust. The lower end of the second filter system is threadedly connected with a dust collector; The dust collector can prevent the collected dust from entering the filtered gas again. The lower end of the dust collector is provided with an air outlet pipe, and the lower end of the air outlet pipe is fixedly connected with a Tesla valve 2; The Tesla valve 2 can decelerate the accelerated gas; An air inlet is arranged on the outer side of the filter mechanism, a meter body is fixedly connected to the lower end of the air inlet, and an air outlet is fixedly connected to the lower end of the meter body.

[0006] Preferably, the first filtering system includes an outer cylinder, a plurality of slide grooves are evenly and equidistantly provided on the inner side of the outer cylinder, a plurality of filter screens are evenly and equidistantly provided on the inner side of the outer cylinder, a plurality of limit grooves are evenly and equidistantly provided on the inner side of the outer cylinder, and the plurality of limit grooves are provided at the lower ends of the plurality of filter screens.

[0007] Preferably, a slider is slidably connected to the slide groove, one side of the slider is slidably connected to the filter screen, one side of the slider is slidably connected to the limiting groove, one side of the slider is fixedly connected to the filter screen, and handles are fixedly connected to both sides of the middle part of the upper end of the filter screen.

[0008] Preferably, the second filtering system comprises an outer shell, an inner shell is arranged on the inner side of the outer shell, the upper and lower ends of the inner shell are fixedly connected to the outer shell, an ash removal pipe is fixedly connected to the inner shell, an opening is provided on the upper side of the outer shell, and the air inlet of the ash removal pipe faces the opening.

[0009] Preferably, a straight rod is provided in the middle of the inner shell, a wind blade is fixedly connected to the upper side of the straight rod, a clamping strip is fixedly connected to the lower end of the straight rod, a limiting rod is slidably connected to the lower end of the straight rod, and a screw device is fixedly connected to the outer side of the limiting rod.

[0010] Preferably, a small hole is formed on the spiral device, a swinging groove is formed on the spiral device, and the outer side of the spiral device is in close contact with the inner side of the inner shell. The outer side of the spiral device is in close contact with the inner side of the inner shell.

[0011] Preferably, one side of the dust removal pipe is fixedly connected to the inner shell, and the bottom end of the inner shell is fixedly connected to the dust collector.

[0012] Preferably, the lower side of the ash removal pipe is fixedly connected to the dust collector, and the upper side of the dust collector is threadedly connected to the housing.

[0013] Preferably, the ash removal pipe includes an outer plate, and multiple outer plates are provided, and multiple clamping plates are fixedly connected to one side of the multiple outer plates, one side of the multiple outer plates is fixedly connected to the inner shell, and the other side of the multiple outer plates is fixedly connected to the outer shell, and one side of the multiple clamping plates is close to the inner shell.

[0014] Preferably, the dust collector includes a built-in net, the built-in net includes a second handle, a filter is fixedly connected to the lower side of the second handle, a slot is provided on the upper end of the built-in net, and a block is slidably connected to the slot.

[0015] Working principle: First, when the gas enters the air inlet and enters the meter body, the gas first passes through the first filter system. For the installation of the first filter system, first pick up the handle 1 and the slider, put it in, put the slider into the slide slot, make the handle 1 and the slider move downward, then rotate the handle 1, and then make the slider and the handle 1 move downward, so that the slider and the limit slot are engaged. When the gas passes through the first filter system, the first filter system filters the gas for the first time to prevent particles from clogging the Tesla valve 1. When the gas passes through the Tesla valve 1, it will be accelerated, the gas drives the wind blade to rotate, the wind blade rotation drives the straight rod, the straight rod drives the spiral to rotate, the spiral rotation will cause the dust falling on the chute to be thrown into the ash scavenging pipe, and because the spiral is provided with small holes, it can filter the gas again. When dust and some gas enter the ash scavenging pipe, the gas and dust particles enter the dust collector, which will block the dust, and the gas will enter the outlet pipe. Tesla valve 2 is to slow down the gas.

[0016] The present invention provides a built-in filtering system for an ultrasonic gas meter, which has the following beneficial effects: 1. The present invention solves the problem that the traditional device cannot perform multi-stage filtering by filtering through the handle 1, the slider, the slide groove, and the filter 1 in the first filtering system, and the spiral device and the built-in net cooperate with each other and perform another cooperation.

[0017] 2. The present invention uses a Tesla valve to accelerate the gas, a straight rod, a wind blade, and a spiral device to rotate to remove dust and other particles. In addition, with the cooperation of a dust removal pipe and a small hole, the device can clean itself and collect dust, thereby avoiding frequent replacement and saving use costs.

[0018] 3. The present invention collects dust through a dust collector, and the slider, the slide groove, the limit groove, and the straight rod slide and engage with each other, so that the device can be disassembled, avoiding the problem of overall design causing one component to be broken and the entire device to be scrapped, and is also conducive to the maintenance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall stereogram of the present invention; Figure 2 It is a schematic diagram of the overall disassembly of the present invention; Figure 3 It is an overall schematic diagram of the filtering mechanism of the present invention; Figure 4 It is a schematic diagram of the overall disassembly of the filtering mechanism of the present invention; Figure 5 It is a schematic diagram of the overall disassembly of the first filtering system of the present invention; Figure 6 It is a planar anatomical schematic diagram of the present invention; Figure 7 It is a planar anatomical schematic diagram of the second filtering system of the present invention; Figure 8 It is a partial disassembly schematic diagram of the second filtering system of the present invention; Fig. 9 for Figure 8 A magnified view of point A; Fig.10 This is the overall schematic diagram of the inner shell and the ash removal pipe; Fig.11 This is a plan anatomical diagram of the inner shell; Fig.12 It is the overall schematic diagram of the dust collector; Fig.13 This is a schematic diagram of the overall disassembly of the dust collector; Fig.14 It is the overall schematic diagram of the ash removal pipe; Fig.15 This is a schematic diagram of the overall partial disassembly of the ash removal pipe; Fig.16 This is the overall schematic diagram of the pallet.

[0020] Among them, 1. air inlet; 2. meter body; 3. air outlet; 4. filter mechanism; 401. first filter system; 402. Tesla valve 1; 403. second filter system; 4031. outer shell; 4032. spiral device; 4033. straight rod; 4034. wind blade; 4035. ash removal pipe; 4036. inner shell; 4037. outer plate; 4038. card plate; 4039. limit rod; 406. collection Dust collector; 4061, built-in net; 407, exhaust pipe; 408, Tesla valve 2; 411, outer tube; 412, slide groove; 413, filter 1; 414, slider; 415, handle 1; 416, limit groove; 417, small hole; 418, ejection groove; 419, handle 2; 420, filter 2; 421, slot; 422, opening; 424, round groove; 425, card strip; 426, block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings of the present invention specification to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example: Please see attached Figure 1 -Attached Figure 4 The embodiment of the present invention provides a built-in filtering system of an ultrasonic gas meter, including a filtering mechanism 4, The filtering mechanism 4 includes a first filtering system 401, which can filter the gas for the first time. A Tesla valve 1 402 is provided at the lower end of the first filtering system 401, which can prevent the Tesla valve 1 402 from being blocked. Tesla valve 1 402 can accelerate the gas, and the bottom end of Tesla valve 1 402 is fixedly connected with a second filtering system 403; The filter mechanism 4 performs the first filtration on the gas to ensure that the particles contained in the gas will not block the Tesla valve 402 and affect the acceleration of the gas by the Tesla valve 402. The Tesla valve 402 can accelerate the gas to ensure that the gas speed in the device can reach the speed to drive the wind blade 4034 to rotate. The second filter system 403 can ensure the self-cleaning of the device.

[0023] The second filter system 403 can filter the gas for the second time to ensure the service life of the meter body, and the second filter system 403 can automatically remove dust. The lower end of the second filter system 403 is threadedly connected with a dust collector 406; The dust collector 406 can prevent the collected dust from entering the filtered gas. The lower end of the dust collector 406 is provided with an air outlet pipe 407, and the lower end of the air outlet pipe 407 is fixedly connected with a Tesla valve 2 408; Tesla valve 2 408 can slow down the accelerated gas; An air inlet 1 is arranged on the outer side of the filter mechanism 4 , a meter body 2 is fixedly connected to the lower end of the air inlet 1 , and an air outlet 3 is fixedly connected to the lower end of the meter body 2 .

[0024] The dust collector 406 ensures that the device can collect dust cleaned by the second filter system 403, and the gas outlet pipe 407 can lead the gas into the Tesla valve 2 408, which can reduce the flow rate of the gas. The gas inlet 1 is the location where the gas enters the device, and the gas outlet 3 is the location where the gas is released from the meter body 2.

[0025] Please see attached Figure 5 -Attached Figure 6 The first filtering system 401 includes an outer cylinder 411, and a plurality of slide grooves 412 are evenly and equidistantly provided on the inner side of the outer cylinder 411, a plurality of filter screens 413 are evenly and equidistantly provided on the inner side of the outer cylinder 411, and a plurality of limit grooves 416 are evenly and equidistantly provided on the inner side of the outer cylinder 411, and the plurality of limit grooves 416 are provided at the lower ends of the plurality of filter screens 413.

[0026] The outer cylinder 411 ensures that there is space for the filter screen 1 413 to be placed, and the slide groove 412, the filter screen 1 413, and the limit groove 416 ensure that the filter screen 1 413 can be installed on the outer cylinder 411 and can be disassembled. The limit groove 416 and the slider 414 act together as fibers to ensure that the filter screen 1 413 does not slide.

[0027] A slider 414 is slidably connected to the slide groove 412, one side of the slider 414 is slidably connected to the filter screen 413, one side of the slider 414 is slidably connected to the limit groove 416, one side of the slider 414 is fixedly connected to the filter screen 413, and handles 415 are fixedly connected to both sides of the middle of the upper end of the filter screen 413.

[0028] The handle 415 ensures that the installation and disassembly of 413 are convenient, and the slider 414 can be rotated into the limit groove of the limit groove 416. The filter screen 413 ensures the first filtration of the gas and ensures that the Tesla valve 402 in the device is not blocked and can allow the gas to pass normally.

[0029] Please see attached Figure 7 -Attached Fig.11 The second filtering system 403 includes an outer shell 4031, an inner shell 4036 is arranged on the inner side of the outer shell 4031, the upper and lower ends of the inner shell 4036 are fixedly connected to the outer shell 4031, an ash removal pipe 4035 is fixedly connected to the inner shell 4036, an opening 422 is opened on the outer shell 4031, and the air inlet of the ash removal pipe 4035 faces the opening 422.

[0030] The space between the outer shell 4031 and the inner shell 4036 ensures that the dust removal pipe 4035 can be placed. The dust removal pipe 4035 ensures that dust can enter the dust collector 406. 4022 ensures that dust can enter the dust removal pipe 4035.

[0031] A straight rod 4033 is provided in the middle of the inner shell 4036, the upper side of the straight rod 4033 is fixedly connected to the wind blade 4034, the lower end of the straight rod 4033 is fixedly connected to the clamping strip 425, the lower end of the straight rod 4033 is slidably connected to the limiting rod 4039, and the outer side of the limiting rod 4039 is fixedly connected to the screw 4032.

[0032] The limit card between the shell 4031 and the straight rod 4033 ensures the normal rotation of the wind blade 4034 and the drive of the spiral 4032. Secondly, the wind blade 4034 will be driven to rotate by the gas accelerated by the Tesla valve 402, ensuring that the spiral 4032 can rotate to achieve the purpose of self-cleaning.

[0033] The spiral device 4032 is provided with a small hole 417, the spiral device 4032 is provided with a throwing groove 418, and the outer side of the spiral device 4032 is closely attached to the inner side of the inner shell 4036. The outer side of the spiral device 4032 is closely attached to the inner side of the inner shell 4036.

[0034] The small hole 417 ensures that the gas in the device can be filtered again, and the ejection groove 418 allows the dust remaining on it to be ejected into the dust removal pipe 4035.

[0035] Please see attached Fig.12 -Attached Fig.16 One side of the dust removal pipe 4035 is fixedly connected to the inner shell 4036 , and the bottom end of the inner shell 4036 is fixedly connected to the dust collector 406 .

[0036] To ensure that dust can smoothly enter the dust collecting pipe 4035, the inner shell 4036 and the outer shell 4031 ensure that the dust collecting pipe 4035 has a place to be placed.

[0037] The lower side of the dust removal pipe 4035 is fixedly connected to the dust collector 406 , and the upper side of the dust collector 406 is threadedly connected to the housing 4031 .

[0038] It is ensured that the gas can smoothly enter the dust collecting pipe 4035 and smoothly collect dust. The dust collector 406 ensures that the dust filtered by the spiral device 4032 can be collected to ensure that the device will not be damaged.

[0039] The ash removal pipe 4035 includes an outer plate 4037, and multiple outer plates 4037 are provided. One side of the multiple outer plates 4037 is fixedly connected to a multiple clamping plates 4038, one side of the multiple outer plates 4037 is fixedly connected to the inner shell 4036, and the other side of the multiple outer plates 4037 is fixedly connected to the outer shell 4031, and one side of the multiple clamping plates 4038 is close to the inner shell 4036.

[0040] The outer plate 4037 ensures the fixation of the card plate 4038, and the outer plate 4037 also ensures that the dust of the device can be introduced into the dust collector 406. The card plate 4038 ensures that the dust will not be sucked out of the dust collector 406.

[0041] The dust collector 406 includes a built-in net 4061, and the built-in net 4061 includes a handle 419. The lower side of the handle 419 is fixedly connected with a filter 420. The upper end of the built-in net 4061 is provided with a slot 421, and a block 426 is slidably connected to the slot 421.

[0042] The built-in net 4061 blocks dust and prevents it from entering the filtered gas, and the second handle 419 ensures that the device can easily disassemble the built-in net 4061. The second filter 420 and the card slot 421 are engaged to prevent the built-in net 4061 from rotating and affecting the filtering effect.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A built-in filtering system for an ultrasonic gas meter, characterized in that: comprising a filtering mechanism (4), The filtering mechanism (4) comprises a first filtering system (401), the first filtering system (401) can perform a first filtering on the gas, a Tesla valve 1 (402) is arranged at the lower end of the first filtering system (401), and the first filtering system (401) can prevent the Tesla valve 1 (402) from being blocked; The Tesla valve 1 (402) can accelerate the gas, and the bottom end of the Tesla valve 1 (402) is fixedly connected to a second filtering system (403); The second filter system (403) can filter the gas for a second time to ensure the service life of the meter body, and the second filter system (403) can automatically remove dust. The lower end of the second filter system (403) is threadedly connected to a dust collector (406); The dust collector (406) can prevent the collected dust from entering the filtered gas. The lower end of the dust collector (406) is provided with an air outlet pipe (407), and the lower end of the air outlet pipe (407) is fixedly connected to a Tesla valve 2 (408); The Tesla valve 2 (408) can decelerate the accelerated gas; An air inlet (1) is arranged on the outside of the filter mechanism (4), the lower end of the air inlet (1) is fixedly connected to a meter body (2), and the lower end of the meter body (2) is fixedly connected to an air outlet (3).

2. The built-in filtering system of an ultrasonic gas meter according to claim 1, characterized in that: The first filtering system (401) comprises an outer cylinder (411), a plurality of slide grooves (412) are evenly and equidistantly provided on the inner side of the outer cylinder (411), a plurality of filter screens (413) are evenly and equidistantly provided on the inner side of the outer cylinder (411), a plurality of limit grooves (416) are evenly and equidistantly provided on the inner side of the outer cylinder (411), and the plurality of limit grooves (416) are provided at the lower ends of the plurality of filter screens (413).

3. The built-in filtering system of an ultrasonic gas meter according to claim 2, characterized in that: A slider (414) is slidably connected to the slide groove (412), one side of the slider (414) is slidably connected to filter screen one (413), one side of the slider (414) is slidably connected to a limit groove (416), one side of the slider (414) is fixedly connected to filter screen one (413), and handle one (415) is fixedly connected to both sides of the middle of the upper end of the filter screen (413).

4. The built-in filtering system of an ultrasonic gas meter according to claim 1, characterized in that: The second filtering system (403) comprises an outer shell (4031), an inner shell (4036) is arranged on the inner side of the outer shell (4031), the upper and lower ends of the inner shell (4036) are fixedly connected to the outer shell (4031), an ash removal pipe (4035) is fixedly connected to the inner shell (4036), an opening (422) is provided on the upper side of the outer shell (4031), and an air inlet of the ash removal pipe (4035) faces the opening (422).

5. The built-in filtering system of an ultrasonic gas meter according to claim 4, characterized in that: A straight rod (4033) is provided in the middle of the inner shell (4036); a wind blade (4034) is fixedly connected to the upper side of the straight rod (4033); a clamping strip (425) is fixedly connected to the lower end of the straight rod (4033); a limiting rod (4039) is slidably connected to the lower end of the straight rod (4033); and a spiral device (4032) is fixedly connected to the outer side of the limiting rod (4039).

6. The built-in filtering system of an ultrasonic gas meter according to claim 5, characterized in that: The spiral device (4032) is provided with a small hole (417), the spiral device (4032) is provided with a throwing groove (418), the outer side of the spiral device (4032) is in close contact with the inner side of the inner shell (4036), and the outer side of the spiral device (4032) is in close contact with the inner side of the inner shell (4036).

7. The built-in filtering system of an ultrasonic gas meter according to claim 4, characterized in that: One side of the dust removal pipe (4035) is fixedly connected to the inner shell (4036), and the bottom end of the inner shell (4036) is fixedly connected to the dust collector (406).

8. The built-in filtering system of an ultrasonic gas meter according to claim 4, characterized in that: The lower side of the dust removal pipe (4035) is fixedly connected to the dust collector (406), and the upper side of the dust collector (406) is threadedly connected to the outer shell (4031).

9. The built-in filtering system of an ultrasonic gas meter according to claim 4, characterized in that: The ash removal pipe (4035) comprises an outer plate (4037), wherein a plurality of the outer plates (4037) are provided, and a plurality of clamping plates (4038) are fixedly connected to one side of the plurality of the outer plates (4037), and a plurality of the outer plates (4037) are fixedly connected to the inner shell (4036) on one side, and the plurality of the outer plates (4037) are fixedly connected to the outer shell (4031) on the other side, and a plurality of the clamping plates (4038) are closely attached to the inner shell (4036) on one side.

10. The built-in filtering system of an ultrasonic gas meter according to claim 1, characterized in that: The dust collector (406) comprises a built-in net (4061), the built-in net (4061) comprises a second handle (419), a filter net (420) is fixedly connected to the lower side of the second handle (419), a slot (421) is provided at the upper end of the built-in net (4061), and a block (426) is slidably connected to the slot (421).

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