An ultrasonic gas meter with a built-in filter system

Abstract

The application relates to the technical field of ultrasonic gas meters, and discloses a built-in filtering system of an ultrasonic gas meter, which comprises a filtering mechanism, the filtering mechanism comprises a first filtering system, the lower end of the first filtering system is provided with a Tesla valve one, the bottom end of the Tesla valve one is fixedly connected with a second filtering system, the lower end of the second filtering system is threadedly connected with a dust collector, the outer side of the filtering mechanism is provided with an air inlet, 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. The first filtering system and the second filtering system can realize multi-stage filtering, the Tesla valve one and the second filtering system can automatically discharge dust, the dust collector can automatically collect dust, the dust collector can prevent the collected dust from entering the filtered gas again, and the cost of use is reduced.

Description

TECHNICAL FIELD

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

[0002] The ultrasonic gas meter measures gas flow through ultrasonic technology, which can provide high-precision measurement results. The built-in filtering system is used to ensure that the measurement channel is not contaminated or blocked, thereby ensuring the accuracy and stability of the measurement. The filtering system helps to prevent particulate matter or impurities in the gas from entering the instrument interior. These particulate matters can damage the ultrasonic sensor or affect the operation of the measurement system, so the filtering system plays an important role in protecting the instrument. Through an effective filtering system, the ultrasonic gas meter can reduce maintenance requirements and failure rate. This design can improve the long-term reliability and durability of the gas meter and reduce operating costs.

[0003] However, the filtering system of the advanced ultrasonic gas meter generally only uses one filtering screen, which makes the device unable to filter the particles in the gas well, resulting in insufficient filtration. Secondly, the filter screen of the traditional ultrasonic gas meter is often disposable due to long-term use and long-term adsorption of particles, which increases the cost. SUMMARY

[0004] In view of the deficiencies of the prior art, the application provides a built-in filtering system of an ultrasonic gas meter, which solves the problems of insufficient filtration of the traditional filtering system, high use cost, no automatic cleaning function of the filter screen and inconvenient maintenance.

[0005] To achieve the above purpose, the application is implemented by the following technical scheme: a built-in filtering system of an ultrasonic gas meter, comprising a filtering mechanism,

[0006] The filtering mechanism comprises a first filtering system, which can filter the gas for the first time, and a Tesla valve one is arranged at the lower end of the first filtering system, which can prevent the Tesla valve one from being blocked;

[0007] The Tesla valve one can accelerate the gas, and a second filtering system is fixedly connected to the bottom end of the Tesla valve one;

[0008] The second filtering system can filter the gas for the second time to ensure the service life of the meter body, and the second filtering system can automatically discharge dust, and a dust collector is threadedly connected to the lower end of the second filtering system;

[0009] The dust collector can prevent the collected dust from entering the filtered gas, a gas outlet pipe is arranged at the lower end of the dust collector, and a Tesla valve two is fixedly connected to the lower end of the gas outlet pipe;

[0010] The Tesla valve two can slow down the accelerated gas;

[0011] The outer side of the filtering mechanism is provided with an air inlet, the lower end of the air inlet is fixedly connected with a table body, and the lower end of the table body is fixedly connected with an air outlet.

[0012] Preferably, the first filtering system comprises an outer cylinder, a plurality of sliding grooves are uniformly and equidistantly arranged on the inner side of the outer cylinder, a plurality of filter screens are uniformly and equidistantly arranged on the inner side of the outer cylinder, and a plurality of limiting grooves are uniformly and equidistantly arranged on the inner side of the outer cylinder.

[0013] Preferably, a sliding block is slidably connected to the sliding groove, one side of the sliding block is slidably connected to the filter screen one, one side of the sliding block is slidably connected to the limiting groove, one side of the sliding block is fixedly connected to the filter screen one, and the upper ends of the filter screens are fixedly connected with handles one on both sides of the middle part.

[0014] 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, a dust removal pipe is fixedly connected to the inner shell, an opening is arranged on the upper end of the outer shell, and the air inlet of the dust removal pipe is opposite to the opening.

[0015] Preferably, a straight rod is arranged on the middle part of the inner shell, a fan 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 spiral device is fixedly connected to the outer side of the limiting rod.

[0016] Preferably, a plurality of small holes are arranged on the spiral device, a plurality of flinging grooves are arranged on the spiral device, and the outer side of the spiral device is close to the inner side of the inner shell.

[0017] 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.

[0018] Preferably, the lower side of the dust removal pipe is fixedly connected to the dust collector, and the upper side of the dust collector is threadedly connected to the outer shell.

[0019] Preferably, the dust removal pipe comprises a plurality of outer plates, a plurality of clamping plates are fixedly connected to one side of the plurality of outer plates, the plurality of outer plates are fixedly connected to the inner shell on one side, a plurality of outer plates are fixedly connected to the outer shell on the other side, and one side of the plurality of clamping plates is close to the inner shell.

[0020] Preferably, the dust collector comprises an inner built-in net, the inner built-in net comprises a handle two, the lower side of the handle two is fixedly connected with a filter screen, a clamping groove is arranged on the upper end of the inner built-in net, and a square block is slidably connected to the clamping groove.

[0021] Working principle: first when the gas into the gas inlet, into the process in the surface body, the gas first through the first filter system. For the installation of the first filter system, first take handle one, slide block, put it into it, put the slide block into the sliding slot, make handle one, slide block downward movement, then rotate handle one, make slide block and limit slot engagement. When the gas through the first filter system, the first filter system filters the gas for the first time, to avoid particles block tesla valve one. When the gas through the tesla valve one will be accelerated, the gas drives the wind blade rotation, the straight rod, the spiral rotation, the spiral will make the dust on the slot is thrown into the dust pipe, because the spiral is provided with a small hole, it can filter the gas again. When the dust and some gas into the dust pipe, the gas and dust particles into the dust collector, will block the dust, the gas will enter the outlet pipe, tesla valve two in order to slow down the gas.

[0022] The application provides an ultrasonic gas meter with a built-in filter system.

[0023] 1. The handle one, slide block, sliding slot and filter screen one in the first filter system are used for filtering, and the spiral and the built-in screen are used for cooperating and filtering again, so that the traditional device cannot perform multi-stage filtering is solved.

[0024] 2. The device can be cleaned and dust can be collected through the cooperation of the tesla valve one, the straight rod, the wind blade, the spiral and the dust pipe and the small hole, so that the device can be cleaned and dust can be collected, and the use cost is saved.

[0025] 3. The dust collector is used for collecting dust, the slide block, the sliding slot, the limit slot and the straight rod are slidably connected, so that the device can be disassembled, the problem that the whole device is scrapped when one part is damaged is avoided, and the device is convenient to maintain. DETAILED DESCRIPTION

[0026] Figure 1 It is a whole perspective view of the application;

[0027] Figure 2 It is a whole exploded view of the application;

[0028] Figure 3 It is a whole schematic view of the filter mechanism of the application;

[0029] Figure 4 It is a whole exploded view of the filter mechanism of the application;

[0030] Figure 5 The overall exploded view of the first filter system of the present application;

[0031] Figure 6 The overall exploded view of the first filter system of the present application;

[0032] Figure 7 The overall exploded view of the first filter system of the present application;

[0033] Figure 8 The overall exploded view of the first filter system of the present application;

[0034] Figure 9 The overall exploded view of the first filter system of the present application; Figure 8 The enlarged view of A of the first filter system of the present application;

[0035] Figure 10 The overall view of the inner shell and the dust removal pipe of the present application;

[0036] Figure 11 The overall view of the inner shell and the dust removal pipe of the present application;

[0037] Figure 12 The overall view of the inner shell and the dust removal pipe of the present application;

[0038] Figure 13 The overall view of the inner shell and the dust removal pipe of the present application;

[0039] Figure 14 The overall view of the inner shell and the dust removal pipe of the present application;

[0040] Figure 15 The overall view of the inner shell and the dust removal pipe of the present application;

[0041] Figure 16 The overall view of the inner shell and the dust removal pipe of the present application;

[0042] Wherein, 1, air inlet; 2, surface body; 3, air outlet; 4, filter mechanism; 401, first filter system; 402, Tesla valve one; 403, second filter system; 4031, outer shell; 4032, spiral device; 4033, straight rod; 4034, air blade; 4035, dust removal pipe; 4036, inner shell; 4037, outer plate; 4038, clamping plate; 4039, limiting rod; 406, dust collector; 4061, built-in net; 407, air outlet pipe; 408, Tesla valve two; 411, outer cylinder; 412, sliding groove; 413, filter screen one; 414, sliding block; 415, handle one; 416, limiting groove; 417, small hole; 418, swinging groove; 419, handle two; 420, filter screen two; 421, clamping groove; 422, opening; 424, circular groove; 425, clamping strip; 426, square block. DETAILED DESCRIPTION

[0043] With reference to the drawings accompanying the present application specification, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0044] Embodiments:

[0045] Please refer to the drawings accompanying the present application specification, Figure 1 - the drawings accompanying the present application specification, Figure 4 The embodiment of the present application provides an ultrasonic gas meter with a built-in filtering system, which comprises a filtering mechanism 4,

[0046] The filtering mechanism 4 comprises a first filtering system 401, which can filter the gas for the first time. The lower end of the first filtering system 401 is provided with a Tesla valve one 402, and the first filtering system 401 can prevent the Tesla valve one 402 from being blocked.

[0047] The Tesla valve one 402 can accelerate the gas, and the bottom end of the Tesla valve one 402 is fixedly connected with a second filtering system 403.

[0048] The filtering mechanism 4 filters the gas for the first time, so as to ensure that the particles contained in the gas do not block the Tesla valve one 402 and affect the acceleration of the Tesla valve one 402 on the gas. The Tesla valve one 402 can accelerate the gas, so as to ensure that the speed of the gas in the device can drive the wind blade 4034 to rotate. The second filtering system 403 can ensure the self-cleaning of the device.

[0049] The second filtering system 403 can filter the gas for the second time, so as to ensure the service life of the meter body, and the second filtering system 403 can automatically discharge dust. The lower end of the second filtering system 403 is screwedly connected with a dust collector 406.

[0050] The dust collector 406 can prevent the collected dust from entering the filtered gas again. 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 two 408.

[0051] The Tesla valve two 408 can slow down the accelerated gas.

[0052] The outer side of the filtering mechanism 4 is provided with an air inlet 1, the lower end of the air inlet 1 is fixedly connected with a meter body 2, and the lower end of the meter body 2 is fixedly connected with an air outlet 3.

[0053] The dust collector 406 ensures that the device can collect the dust cleaned by the second filtering system 403, the gas outlet pipe 407 can lead the gas into the Tesla valve two 408, which can reduce the flow rate of the gas. The gas inlet 1 is the position where the gas enters the device, and the gas outlet 3 is the position where the gas is discharged from the surface 2.

[0054] Please refer to the attached Figure 5 -attached Figure 6 The first filtering system 401 includes an outer cylinder 411, a plurality of sliding grooves 412 are uniformly and equidistantly arranged on the inner side of the outer cylinder 411, a plurality of filter screens 413 are uniformly and equidistantly arranged on the inner side of the outer cylinder 411, and a plurality of limiting grooves 416 are uniformly and equidistantly arranged on the inner side of the outer cylinder 411. The plurality of limiting grooves 416 are arranged at the lower ends of the plurality of filter screens 413.

[0055] The outer cylinder 411 ensures that the filter screen one 413 has a space for placement, the sliding groove 412, the filter screen one 413, and the limiting groove 416 ensure that the filter screen one 413 can be installed on the outer cylinder 411 and can be disassembled. The limiting groove 416 and the sliding block 414 jointly function as a fiber to ensure that the filter screen one 413 does not slide.

[0056] The sliding groove 412 is slidably connected with the sliding block 414, one side of the sliding block 414 is slidably connected with the filter screen one 413, one side of the sliding block 414 is slidably connected with the limiting groove 416, one side of the sliding block 414 is fixedly connected with the filter screen one 413, and the upper ends of the filter screen 413 are fixedly connected with the handle one 415 on both sides of the middle part.

[0057] The handle one 415 ensures that the installation and disassembly of 413 are convenient, and the sliding block 414 can be rotated into the limiting groove of the limiting groove 416, the filter screen one 413 ensures the first filtration of the gas, and ensures that the Tesla valve one 402 in the device is not blocked and can normally pass through the gas.

[0058] Please refer to the attached Figure 7 -attached Figure 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 with the outer shell 4031, the inner shell 4036 is fixedly connected with the dust removal pipe 4035, the upper end of the outer shell 4031 is provided with an opening 422, and the air inlet of the dust removal pipe 4035 faces the opening 422.

[0059] 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 the dust can enter the dust collector 406, and the 4022 ensures that the dust can enter the dust removal pipe 4035.

[0060] The middle part of the inner shell 4036 is provided with a straight rod 4033, the upper side of the straight rod 4033 is fixedly connected with a fan blade 4034, the lower end of the straight rod 4033 is fixedly connected with a clamping strip 425, the lower end of the straight rod 4033 is slidingly connected with a limiting rod 4039, the outer side of the limiting rod 4039 is fixedly connected with a screw device 4032.

[0061] The limiting clamping between the outer shell 4031 and the straight rod 4033 ensures the normal rotation of the fan blade 4034 and the driving of the screw device 4032, and secondly, the fan blade 4034 is driven to rotate by the gas accelerated by the Tesla valve 402, which ensures that the screw device 4032 can rotate to achieve the purpose of self-cleaning.

[0062] The screw device 4032 is provided with a small hole 417 and a flinging groove 418, and the outer side of the screw device 4032 is close to the inner side of the inner shell 4036.

[0063] The small hole 417 ensures that the gas in the device can be filtered again, and the flinging groove 418 can make the dust staying on it be flung into the dust removal pipe 4035.

[0064] Please refer to the accompanying drawings Figure 12 - the accompanying drawings Figure 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.

[0065] The dust can smoothly enter the dust removal pipe 4035, and the inner shell 4036 and the outer shell 4031 ensure that the dust removal pipe 4035 has a place to be placed.

[0066] 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.

[0067] The gas can smoothly enter the dust removal pipe 4035 and collect the dust smoothly. The dust collector 406 ensures that the dust filtered by the screw device 4032 can be collected, and ensures that the device will not be damaged.

[0068] The dust removal pipe 4035 comprises a plurality of outer plates 4037, one side of the plurality of outer plates 4037 is fixedly connected with a plurality of clamping plates 4038, one side of the plurality of outer plates 4037 is fixedly connected to the inner shell 4036, the other side of the plurality of outer plates 4037 is fixedly connected to the outer shell 4031, and one side of the plurality of clamping plates 4038 is close to the inner shell 4036.

[0069] The outer plate 4037 guarantees the fixation of the clamping plate 4038, and the outer plate 4037 also guarantees that the dust of the device can be guided into the dust collector 406. The clamping plate 4038 guarantees that the dust cannot be sucked out of the dust collector 406.

[0070] The dust collector 406 comprises an inner mesh 4061, the inner mesh 4061 comprises a handle two 419, the lower side of the handle two 419 is fixedly connected with a filter screen two 420, the upper end of the inner mesh 4061 is provided with a clamping groove 421, and the clamping groove 421 is slidably connected with a square block 426.

[0071] The inner mesh 4061 guarantees that the dust is blocked and cannot enter the gas which has been filtered, and the handle two 419 guarantees that the device can be conveniently disassembled from the inner mesh 4061. The clamping groove 421 and the filter screen two 420 are clamped, so that the inner mesh 4061 cannot rotate and affect the filtering effect.

[0072] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An inbuilt filtration system for ultrasonic gas meter characterized by, Including filter mechanism (4), The filter mechanism (4) includes a first filter system (401), which can filter the gas for the first time, and the lower end of the first filter system (401) is provided with a Tesla valve one (402), which can prevent the Tesla valve one (402) from being blocked. The Tesla valve one (402) can accelerate the gas, and the bottom end of the Tesla valve one (402) is fixedly connected with a second filter system (403); The second filter system (403) can filter the gas for the second time, ensure the service life of the surface body, and the second filter system (403) can automatically discharge dust, and 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, and 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 two (408); The Tesla valve two (408) can slow down the accelerated gas; The outer side of the filter mechanism (4) is provided with an air inlet (1), the lower end of the air inlet (1) is fixedly connected with a surface body (2), and the lower end of the surface body (2) is fixedly connected with an air outlet (3).

2. The built-in filter system of an ultrasonic gas meter according to claim 1, wherein, The first filter system (401) includes an outer cylinder (411), a plurality of sliding grooves (412) are uniformly and equidistantly formed in the inner side of the outer cylinder (411), a plurality of filter screens (413) are uniformly and equidistantly formed in the inner side of the outer cylinder (411), and a plurality of limiting grooves (416) are uniformly and equidistantly formed in the inner side of the outer cylinder (411).

3. The built-in filter system of an ultrasonic gas meter according to claim 2, characterized in that, The sliding grooves (412) are slidably connected with sliding blocks (414), one side of the sliding block (414) is slidably connected with the filter screen one (413), one side of the sliding block (414) is slidably connected with the limiting groove (416), one side of the sliding block (414) is fixedly connected with the filter screen one (413), and the upper end of the filter screen (413) is fixedly connected with the handle one (415) on both sides of the middle part.

4. The built-in filter system of an ultrasonic gas meter according to claim 1, wherein, The second filter 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 with the outer shell (4031), a dust removal pipe (4035) is fixedly connected with the inner shell (4036), an opening (422) is formed in the upper end of the outer shell (4031), and the air inlet of the dust removal pipe (4035) faces the opening (422).

5. The built-in filter system of an ultrasonic gas meter according to claim 4, characterized in that, The middle part of the inner shell (4036) is provided with a straight rod (4033), the upper side of the straight rod (4033) is fixedly connected with a fan blade (4034), the lower end of the straight rod (4033) is fixedly connected with a clamping strip (425), the lower end of the straight rod (4033) is slidingly connected with a limiting rod (4039), the outer side of the limiting rod (4039) is fixedly connected with a screw device (4032).

6. The built-in filter system of an ultrasonic gas meter according to claim 5, wherein, The screw device (4032) is provided with a small hole (417) and a fling groove (418), the outer side of the screw device (4032) is close to the inner side of the inner shell (4036), and the outer side of the screw device (4032) is close to the inner side of the inner shell (4036).

7. The built-in filter system of an ultrasonic gas meter according to claim 4, wherein, One side of the ash dispersing pipe (4035) is fixedly connected with the inner shell (4036), and the bottom end of the inner shell (4036) is fixedly connected with the dust collector (406).

8. The built-in filter system of an ultrasonic gas meter according to claim 4, wherein, The lower side of the ash dispersing pipe (4035) is fixedly connected with the dust collector (406), and the upper side of the dust collector (406) is screwedly connected with the outer shell (4031).

9. The built-in filter system of an ultrasonic gas meter according to claim 4, wherein, The ash dispersing pipe (4035) comprises a plurality of outer plates (4037), one side of each of the plurality of outer plates (4037) is fixedly connected with a clamping plate (4038), one side of each of the plurality of outer plates (4037) is fixedly connected with the inner shell (4036), the other side of each of the plurality of outer plates (4037) is fixedly connected with the outer shell (4031), and one side of each of the plurality of clamping plates (4038) is close to the inner shell (4036).

10. The built-in filter system of an ultrasonic gas meter according to claim 1, wherein, The dust collector (406) comprises an inner built-in net (4061), the inner built-in net (4061) comprises a handle two (419), the lower side of the handle two (419) is fixedly connected with a filter screen (420), the upper end of the inner built-in net (4061) is provided with a clamping groove (421), and the clamping groove (421) is slidingly connected with a square block (426).

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