CN220049293U - Online dirt cleaning assembly applied to pipe-measuring gas flowmeter - Google Patents
Online dirt cleaning assembly applied to pipe-measuring gas flowmeter Download PDFInfo
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- CN220049293U CN220049293U CN202321630676.XU CN202321630676U CN220049293U CN 220049293 U CN220049293 U CN 220049293U CN 202321630676 U CN202321630676 U CN 202321630676U CN 220049293 U CN220049293 U CN 220049293U
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- 238000004140 cleaning Methods 0.000 title claims abstract description 99
- 230000003068 static effect Effects 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000005202 decontamination Methods 0.000 claims description 5
- 230000003588 decontaminative effect Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010017740 Gas poisoning Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an online dirt cleaning assembly applied to a pipe-measuring gas flowmeter, which comprises a connecting block, wherein a full-pressure air inlet and a static-pressure air inlet are formed in the bottom of the connecting block; the full-pressure air inlet is in sealing connection with a full-pressure-taking hole of the flow meter measuring tube, and the static-pressure air inlet is in sealing connection with a static-pressure-taking hole of the flow meter measuring tube; the connecting block is internally provided with a full-pressure air supply channel, a static pressure air supply channel, a full-pressure cleaning channel and a static pressure cleaning channel; the static pressure air supply channel and the static pressure cleaning channel are connected with the full-pressure air inlet; the full-pressure air supply channel and the full-pressure cleaning channel are connected with the static pressure air inlet; the other outlets of the full-pressure air supply channel and the static-pressure air supply channel are connected with a three-valve group of a gas flowmeter such as a measuring tube; the other outlets of the full-pressure cleaning channel and the static-pressure cleaning channel are respectively provided with a detachable plugging piece in a sealing way, and the plugging pieces and the three-valve group are positioned at different connection positions of the connecting block; the utility model reduces the dirt-cleaning difficulty, the labor intensity of workers and the working risk.
Description
Technical Field
The utility model belongs to the technical field of maintenance of a gas flowmeter of a measuring tube type, and particularly relates to an online dirt cleaning assembly applied to the gas flowmeter of the measuring tube type.
Background
The gas flowmeter is a measuring device for detecting the gas flow in a gas pipeline. As shown in fig. 1, which is a schematic diagram of an application scenario of a common gas flowmeter such as a measuring tube, in the drawing, a flow meter measuring tube 20 is inserted into a gas pipeline 10, a full-pressure measuring hole 21 and a static pressure measuring hole 22 are communicated with an inner cavity of the gas pipeline, the other end of the pressure measuring hole is connected with a differential pressure transmitter 40 through a three-valve group 30, and the differential pressure transmitter 40 measures and calculates the flow of gas in the gas pipeline to obtain a measurement result.
Because the gas contains dust, tar and other substances, the gas is easy to adhere to the pressure-taking hole of the flow meter measuring tube of the gas flow meter, and the pressure-taking hole is easy to be blocked for a long time. In this case, it is most conventional practice to reserve a purge port which can only be externally connected with an air source to purge the full pressure taking hole 21 and the static pressure taking hole 22 periodically. However, no purge gas source exists at the installation position of the gas flowmeter of the measuring tube type, and at the moment, the three valve groups 30 can only be manually and periodically detached on line to be connected with the differential pressure transmitter 40, so that the full-pressure sampling hole 21 and the static pressure sampling hole 22 are manually cleaned.
However, during manual cleaning, the gas in the gas pipeline is discharged through the outlets of the full-pressure taking hole 21 and the static pressure taking hole 22 after the three-valve group 30 is connected with the differential pressure transmitter 40, so that energy waste is caused, the environment is polluted, more importantly, the installation position of the purging-free gas source is usually located at a high position of more than ten meters, workers need to process the three-valve group 30 in the cleaning process to be connected with the differential pressure transmitter 40, the equipment is usually heavy by tens of jin, the labor intensity of the workers is high, and the working risk of high-altitude treatment is also high.
Disclosure of Invention
The utility model aims to provide an on-line cleaning component applied to a gas flowmeter of a measuring tube type, so that a differential pressure transmitter is connected without disassembling a three-valve group in the manual cleaning process, and the labor intensity and the working risk of workers are reduced.
The utility model adopts the following technical scheme: an online dirt cleaning assembly applied to a pipe-measuring gas flowmeter comprises a connecting block, wherein a full-pressure air inlet and a static-pressure air inlet are formed in the bottom of the connecting block;
the full-pressure air inlet is in sealing connection with a full-pressure-taking hole of the flow meter measuring tube, and the static-pressure air inlet is in sealing connection with a static-pressure-taking hole of the flow meter measuring tube;
the connecting block is internally provided with a full-pressure air supply channel, a static pressure air supply channel, a full-pressure cleaning channel and a static pressure cleaning channel; the static pressure air supply channel and the static pressure cleaning channel are connected with the full-pressure air inlet; the full-pressure air supply channel and the full-pressure cleaning channel are connected with the static pressure air inlet;
the other outlets of the full-pressure air supply channel and the static-pressure air supply channel are connected with a three-valve group of a gas flowmeter such as a measuring tube;
and the other outlets of the full-pressure cleaning channel and the static-pressure cleaning channel are respectively provided with a detachable plugging piece in a sealing way, and the plugging pieces and the three-valve group are positioned at different connection positions of the connecting block.
Further, the full-pressure cleaning channel and the full-pressure taking hole are coaxial;
the static pressure cleaning channel and the static pressure taking hole are coaxial.
Further, sealing rings are arranged on the full-pressure cleaning channel and the static-pressure cleaning channel.
Further, the closure member is a ball valve.
Further, the device also comprises a cleaning rod, wherein the cleaning rod is used for cleaning the adhesion objects by extending into the full-pressure taking hole through the full-pressure cleaning channel, and the cleaning rod is also used for cleaning the adhesion objects by extending into the static-pressure taking hole through the static-pressure cleaning channel.
The beneficial effects of the utility model are as follows: according to the utility model, the connecting block is added between the flowmeter measuring tube and the three-valve group, and the air supply channel and the cleaning channel are arranged in the connecting block, so that the three-valve group and the cleaning channel are separated, and the three-valve group and the differential pressure transmitter do not need to be disassembled when the flowmeter measuring tube is cleaned, so that the cleaning difficulty, the labor intensity of workers and the working risk are reduced.
Drawings
FIG. 1 is a schematic diagram of a prior art gas meter of the type of a test tube;
FIG. 2 is a schematic structural diagram of an on-line decontamination module for a gas meter of the type used in a test tube according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an on-line decontamination module for a gas meter of a pipe type according to an embodiment of the present utility model.
Wherein: 10. a gas pipe;
20. a flow meter tube; 21. a full-pressure taking hole; 22. a static pressure taking hole;
30. three valve groups; 40. a differential pressure transmitter;
50. a connecting block; 51. a full pressure air supply channel; 52. a static pressure air supply channel; 53. a full-pressure cleaning channel; 54. static pressure cleaning channels;
60. a blocking member; 70. an adherend.
Detailed Description
The utility model will be described in detail below with reference to the drawings and the detailed description.
The utility model discloses an online dirt cleaning component applied to a pipe-measuring gas flowmeter, which is shown in fig. 2, and comprises a connecting block 50, wherein a full-pressure air inlet and a static-pressure air inlet are formed in the bottom of the connecting block 50; the full-pressure air inlet is in sealing connection with a full-pressure-taking hole 21 of the flow measuring tube 20, and the static-pressure air inlet is in sealing connection with a static-pressure-taking hole 22 of the flow measuring tube 20; the connecting block 50 is internally provided with a full-pressure air supply channel 51, a static pressure air supply channel 52, a full-pressure cleaning channel 53 and a static pressure cleaning channel 54; the static pressure air supply channel 52 and the static pressure cleaning channel 54 are connected with the full-pressure air inlet; the full-pressure air supply channel 51 and the full-pressure cleaning channel 53 are connected with the static pressure air inlet; the other outlets of the full-pressure air supply channel 51 and the static-pressure air supply channel 52 are connected with the three-valve group 30 of the gas flowmeter of the measuring tube type; the other outlets of the full-pressure cleaning channel 53 and the static-pressure cleaning channel 54 are respectively provided with a detachable blocking piece 60 in a sealing way, and the blocking piece 60 and the three-valve group 30 are positioned at different connecting positions of the connecting blocks.
According to the utility model, the connecting block 50 is added between the flow measuring tube 20 and the three-valve group 30, and the air supply channel and the cleaning channel are formed in the connecting block 50, so that the three-valve group 30 and the cleaning channel are separated, and the three-valve group 30 and the differential pressure transmitter 40 do not need to be disassembled when the flow measuring tube 20 is cleaned, so that the cleaning difficulty, the labor intensity of workers and the working risk are reduced.
The structure of the specific connection block 50 can be designed according to actual requirements, and only needs to meet installation requirements, such as rectangular blocks, round tables, cylinders or other irregular blocks.
In one embodiment, the full pressure purge passage 53 is coaxial with the full pressure tap 21; the static pressure purge passage 54 is coaxial with the static pressure take-off orifice 22. Therefore, the full-pressure cleaning channel 53 and the full-pressure taking hole 21 can be guaranteed to be on the same straight line, namely, the full-pressure cleaning channel and the full-pressure taking hole form a straight channel, so that a straight-line type cleaning tool is convenient to select, meanwhile, the difficulty of doing not is reduced, and the cleaning efficiency is improved.
In another embodiment, since the full-pressure cleaning channel 53 and the static-pressure cleaning channel 54 are both indirectly connected to the gas pipe with a certain pressure, in use, after the plugging piece 60 is detached, the gas is sprayed to the outside through the full-pressure cleaning channel 53 and the static-pressure cleaning channel 54 to pollute the environment. Therefore, the sealing rings are installed on the full-pressure cleaning channel 53 and the static-pressure cleaning channel 54, so that after the plugging piece 60 is opened, the sealing rings can close the channel to prevent gas from being sprayed out, and the sealing rings are elastic, so that the cleaning tools can directly penetrate through the centers of the sealing rings to enter the full-pressure taking hole 21 or the static-pressure taking hole 22 when being used, and the normal cleaning work is not influenced.
In one embodiment, the blocking member 60 is a ball valve, and through the use of the ball valve, disassembly of the ball valve can be avoided during cleaning, and only the passage of the ball valve exposed by the ball valve needs to be opened, and then cleaning is performed.
More specifically, as a specific implementation mode, the trash cleaning assembly further comprises a trash cleaning rod, and specifically, the trash cleaning rod can be made of steel bars, so that materials can be obtained conveniently. The cleaning rod is used for cleaning the adhesion objects 70 by extending into the full-pressure taking hole 21 through the full-pressure cleaning channel 53, and is also used for cleaning the adhesion objects 70 by extending into the static-pressure taking hole 22 through the static-pressure cleaning channel 54.
The dirt cleaning assembly can realize the on-line dredging of the gas flowmeter such as a measuring tube without disassembly, avoid the operation safety risk, periodically and manually dredge and ensure that the pressure guiding tube of the flowmeter is not blocked. According to the utility model, the transmitter arranged right above the flow meter measuring tube 20 is shifted by a certain distance by the decontamination assembly, and maintenance personnel can push away the dirty medium adhered in the positive and negative pressure tubes of the flow meter through the channels on the decontamination assembly by using a proper hard steel wire, so that the flow meter is not blocked, and the problems of high labor intensity and high risk caused by manually and regularly dismantling the flow meter on line are avoided.
The utility model can be applied to occasions of gas flow meters which are very easy to cause blockage of a measuring tube and the like near the gas produced by an iron-making blast furnace and a steelmaking converter, the original flow meter component body is utilized, only the middle connecting piece at the upper end of the original flow meter is needed to be cut off, the online dirt cleaning assembly is replaced and welded, a flow meter maintainer periodically opens the full-pressure and static-pressure valve bank of the dirt cleaning valve bank, steel bars are inserted into the full-pressure and static-pressure taking tube of the measuring tube, and dirt mediums adhered in the pressure taking tube can be discharged into a pipeline by dredging up and down, so that the flow meter is not blocked.
In addition, because the online dirt cleaning assembly is used, the flowmeter does not need to be disassembled, the safety risk of maintenance operation is greatly reduced, and maintenance personnel is reduced from 6 to only 2 through simple operation.
As shown in fig. 3, the cleaning process after the cleaning assembly of the present utility model is installed is:
the flow meter maintainer periodically opens the blocking piece 60 (i.e. the ball valve) of the dirt cleaning assembly, inserts the steel bar (i.e. the dirt cleaning rod) into the full pressure and static pressure taking hole of the measuring tube, and can discharge dirt adhesion substances 70 adhered in the taking tube into the gas pipeline by dredging up and down, thereby avoiding the flow meter from being blocked. Moreover, due to the sealing ring of the dirt cleaning assembly, only a trace amount of gas leaks in the back and forth dredging process of the steel bar, so that the gas poisoning of maintenance personnel can be avoided.
Claims (5)
1. The online dirt cleaning assembly for the gas flowmeter is characterized by comprising a connecting block (50), wherein a full-pressure air inlet and a static-pressure air inlet are formed in the bottom of the connecting block (50);
the full-pressure air inlet is in sealing connection with a full-pressure taking hole (21) of the flow measuring tube (20), and the static-pressure air inlet is in sealing connection with a static-pressure taking hole (22) of the flow measuring tube (20);
a full-pressure air supply channel (51), a static pressure air supply channel (52), a full-pressure cleaning channel (53) and a static pressure cleaning channel (54) are formed in the connecting block (50); the static pressure air supply channel (52) and the static pressure cleaning channel (54) are connected with the full pressure air inlet; the full-pressure air supply channel (51) and the full-pressure cleaning channel (53) are connected with the static pressure air inlet;
the other outlets of the full-pressure air supply channel (51) and the static-pressure air supply channel (52) are connected with a three-valve group (30) of a gas flowmeter such as a measuring tube;
and the other outlets of the full-pressure cleaning channel (53) and the static-pressure cleaning channel (54) are respectively provided with a detachable blocking piece (60) in a sealing way, and the blocking pieces (60) and the three-valve group (30) are positioned at different connection positions of the connecting blocks.
2. An on-line cleaning assembly for a gas meter of the gas-measuring type according to claim 1, characterized in that said full-pressure cleaning channel (53) is coaxial with said full-pressure-taking hole (21);
the static pressure cleaning channel (54) is coaxial with the static pressure taking hole (22).
3. An on-line cleaning assembly for a gas meter of the gas-measuring type according to claim 2, characterized in that the full-pressure cleaning channel (53) and the static-pressure cleaning channel (54) are provided with sealing rings.
4. An on-line decontamination module for a gas meter such as a tube of the type of gas meter as claimed in claim 2 or 3, wherein the closure member (60) is a ball valve.
5. An on-line cleaning assembly for a gas flow meter of the pipe type as claimed in claim 4, further comprising a cleaning rod for cleaning adherends (70) extending into said full pressure take-off hole (21) through said full pressure cleaning passage (53), said cleaning rod further being for cleaning adherends (70) extending into said static pressure take-off hole (22) through said static pressure cleaning passage (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321630676.XU CN220049293U (en) | 2023-06-26 | 2023-06-26 | Online dirt cleaning assembly applied to pipe-measuring gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321630676.XU CN220049293U (en) | 2023-06-26 | 2023-06-26 | Online dirt cleaning assembly applied to pipe-measuring gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220049293U true CN220049293U (en) | 2023-11-21 |
Family
ID=88787247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321630676.XU Active CN220049293U (en) | 2023-06-26 | 2023-06-26 | Online dirt cleaning assembly applied to pipe-measuring gas flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220049293U (en) |
-
2023
- 2023-06-26 CN CN202321630676.XU patent/CN220049293U/en active Active
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