CN208833306U - A kind of gas meter, flow meter with deceleration rectified action - Google Patents
A kind of gas meter, flow meter with deceleration rectified action Download PDFInfo
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- CN208833306U CN208833306U CN201821529014.2U CN201821529014U CN208833306U CN 208833306 U CN208833306 U CN 208833306U CN 201821529014 U CN201821529014 U CN 201821529014U CN 208833306 U CN208833306 U CN 208833306U
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- deceleration
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- meter
- short tube
- flow meter
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Abstract
The utility model provides a kind of gas meter, flow meter with deceleration rectified action, belongs to gas meter, flow meter field.It solves fast speed when existing gas meter, flow meter combustion gas enters, gas pressure is larger to lead to measurement error, a kind of gas meter, flow meter with deceleration rectified action, including shell, shell is provided with air inlet and deceleration stable-pressure device, deceleration stable-pressure device is connected to the end of air inlet, short tube is equipped with inside deceleration stable-pressure device, short tube outer wall is provided with protrusion, there are gaps between protrusion and deceleration stable-pressure device inner wall, short tube is provided with import, slot and gas outlet, and slot is between import and gas outlet.The utility model has many advantages, such as easy to use.
Description
Technical field
The utility model belongs to gas meter, flow meter field, is related to a kind of gas meter, flow meter with deceleration rectified action.
Background technique
With the cleanings such as natural gas, the rapid development of high efficient energy sources, natural gas is going into huge numbers of families, more and more
Town dweller begins to use natural gas, calculates the usage amount of every family combustion gas for convenience, measures usually using gas meter, flow meter.
Domestic gas meter used at present includes hot type gas meter, flow meter, and gas pipeline is connected to the air inlet of hot type gas meter, flow meter
Mouthful, when combustion gas enters gas pipeline and enters pipeline, fast speed, when measurement, measurement error is larger, and the coal gas in piped gas
Pressure is larger and unstable, also will affect the error of measurement.
Summary of the invention
The purpose of this utility model is provided a kind of with rectification of slowing down for the above-mentioned problems in the prior art
The gas meter, flow meter of effect.
The purpose of this utility model can be realized by the following technical scheme: a kind of combustion gas with deceleration rectified action
Table, which is characterized in that including shell, the shell is provided with air inlet and deceleration fairing, and the deceleration rectifies dress
The end for being connected to air inlet is set, short tube is equipped with inside the deceleration fairing, the short tube outer wall is provided with prominent
It rises, there are gap between the protrusion and deceleration fairing inner wall, the short tube is provided with import, slot and outlet
Mouthful, the slot is between import and gas outlet.
Working principle of the utility model is: combustion gas first passes through deceleration fairing using air inlet when gas meter, flow meter works
Into, when combustion gas enters deceleration fairing, due to being equipped with short tube inside deceleration fairing, combustion gas can outside short tube and
Enter inside short tube, if combustion gas enters outside short tube, the outer wall of short tube is provided with protrusion, protrusion and deceleration fairing it is interior
There are gap between portion, combustion gas can also enter from the inside of short tube, be internally provided with slot due to short tube, when combustion gas enter it is short
Guan Hou, due to having slot among short tube, the flow velocity of combustion gas can become faster, but from slot to gas outlet, short tube slowly broadens again,
The flow velocity of combustion gas slows down again.Therefore after combustion gas passes through deceleration fairing, the flow velocity of combustion gas can be slack-off, and not because of the lines of short tube
Sharply than milder, play the role of rectification.
In a kind of above-mentioned gas meter, flow meter with deceleration rectified action, in the short tube outer wall and deceleration fairing
The first filter device is provided between portion, first filter device is fixedly connected for short tube with deceleration fairing.
In a kind of above-mentioned gas meter, flow meter with deceleration rectified action, the second filtering dress is provided in the short tube
It sets.
In a kind of above-mentioned gas meter, flow meter with deceleration rectified action, first filter device and the second filtering dress
It is set to multiple filtration net.
In a kind of above-mentioned gas meter, flow meter with deceleration rectified action, the import is in horn-like.
In a kind of above-mentioned gas meter, flow meter with deceleration rectified action, the cross-sectional area of the import is less than gas outlet
Cross-sectional area.
In a kind of above-mentioned gas meter, flow meter with deceleration rectified action, the end of the deceleration fairing is provided with
Constant-current stabilizer.
In a kind of above-mentioned gas meter, flow meter with deceleration rectified action, the constant-current stabilizer is gas flow stabilizing valve.
In a kind of above-mentioned gas meter, flow meter with deceleration rectified action, the protrusion is centered around short tube outer wall, described
Protrusion section be arc.
Compared with prior art, the utility model has the advantage that
1. the utility model can be effectively reduced the flow velocity of combustion gas and rectify to combustion gas, so that the measurement of gas meter, flow meter is more
It is accurate.
2. being provided with the first filter device between the utility model short tube outer wall and deceleration fairing inside, the first filtering
Device is fixedly connected for short tube with deceleration fairing.First filter device can not only play impurity particle in filtering combustion gas
Effect, and short tube can also be fixed on inside deceleration fairing.
3. being provided with the second filter device in the utility model short tube.When combustion gas is flowed through inside short tube, the second filter device
Play the role of filtering impurity particle in combustion gas.
4. the end of the utility model deceleration fairing is provided with constant-current stabilizer.Constant-current stabilizer can will be after deceleration and rectification
Combustion gas settle out so that the flow speed stability of combustion gas.
5. the utility model import cross-sectional area is less than gas outlet cross-sectional area, play the role of deceleration.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure, 1, shell；2, air inlet；3, deceleration fairing；4, short tube；5, protrusion；6, import；7, slot；8, go out
Port；9, the first filter device；10, the second filter device；11, constant-current stabilizer.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, a kind of gas meter, flow meter with deceleration rectified action, including shell 1, shell 1 are provided with 2 He of air inlet
Deceleration fairing 3, deceleration fairing 3 are connected to the end of air inlet 2, short tube 4 are equipped with inside deceleration fairing 3,
4 outer wall of short tube is provided with protrusion 5, and there are gap between 3 inner wall of protrusion 5 and deceleration fairing, short tube 4 is provided with import 6, narrow
Mouth 7 and gas outlet 8, slot 7 is between import 6 and gas outlet 8.
It further describes in detail, 4 outer wall of short tube and deceleration fairing are provided with the first filter device 9, the first mistake between 3 inside
Filter device 9 is fixedly connected for short tube 4 with deceleration fairing 3.First filter device 9 can not only play miscellaneous in filtering combustion gas
The effect of matter particle, and short tube 4 can also be fixed on inside deceleration fairing 3.
It further describes in detail, the second filter device 10 is provided in short tube 4.When combustion gas flows through 4 inside of short tube, the second filtering dress
10 are set to play the role of filtering impurity particle in combustion gas.
It further describes in detail, the first filter device 9 and the second filter device 10 are multiple filtration net.
It further describes in detail, import 6 is in horn-like.
It further describes in detail, the cross-sectional area of import 6 is less than the cross-sectional area of gas outlet 8.The more stable outflow of combustion gas.
It further describes in detail, the end of deceleration fairing 3 is provided with constant-current stabilizer 11.Constant-current stabilizer 11 can will slow down and it is whole
Combustion gas after stream settles out, so that the flow speed stability of combustion gas.
It further describes in detail, constant-current stabilizer 11 is gas flow stabilizing valve.Gas flow stabilizing valve is usually 1 import 2 outlets, import
Place indicates arrow, and the size of output flow is adjusted by knob, output flow increase is rotated counterclockwise, conversely, rotating clockwise
Output flow reduces.
It further describes in detail, protrusion 5 is centered around 4 outer wall of short tube, and the section of protrusion 5 is arc.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although shell 1, air inlet 2, deceleration fairing 3, short tube 4, protrusion 5, import 6, narrow is used more herein
The terms such as mouth 7, gas outlet 8, the first filter device 9, the second filter device 10, constant-current stabilizer 11, but be not precluded using other
A possibility that term.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；Them
It is contrary to the spirit of the present invention for being construed to any additional limitation all.
Claims (9)
1. a kind of gas meter, flow meter with deceleration rectified action, which is characterized in that including shell (1), the shell (1) is provided with
Air inlet (2) and deceleration fairing (3), the deceleration fairing (3) is connected to the end of air inlet (2), described
It is equipped with short tube (4) inside deceleration fairing (3), the short tube (4) outer wall is provided with protrusion (5), the protrusion (5)
There are gap between deceleration fairing (3) inner wall, the short tube (4) is provided with import (6), slot (7) and gas outlet
(8), the slot (7) is located between import (6) and gas outlet (8).
2. a kind of gas meter, flow meter with deceleration rectified action according to claim 1, which is characterized in that the short tube
(4) it is provided with the first filter device (9) between outer wall and deceleration fairing (3) inside, first filter device (9) is used
It is fixedly connected in short tube (4) with deceleration fairing (3).
3. a kind of gas meter, flow meter with deceleration rectified action according to claim 2, which is characterized in that the short tube
(4) the second filter device (10) are provided in.
4. a kind of gas meter, flow meter with deceleration rectified action according to claim 3, which is characterized in that first mistake
It filters device (9) and the second filter device (10) is multiple filtration net.
5. a kind of gas meter, flow meter with deceleration rectified action according to claim 2, which is characterized in that the import
(6) in horn-like.
6. a kind of gas meter, flow meter with deceleration rectified action according to claim 2, which is characterized in that the import
(6) cross-sectional area is less than the cross-sectional area of gas outlet (8).
7. a kind of gas meter, flow meter with deceleration rectified action according to claim 2, which is characterized in that the deceleration is whole
The end of stream device (3) is provided with constant-current stabilizer (11).
8. a kind of gas meter, flow meter with deceleration rectified action according to claim 7, which is characterized in that the current stabilization dress
Setting (11) is gas flow stabilizing valve.
9. a kind of gas meter, flow meter with deceleration rectified action according to claim 2, which is characterized in that the protrusion
(5) it is centered around short tube (4) outer wall, the section of the protrusion (5) is arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821529014.2U CN208833306U (en) | 2018-09-18 | 2018-09-18 | A kind of gas meter, flow meter with deceleration rectified action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821529014.2U CN208833306U (en) | 2018-09-18 | 2018-09-18 | A kind of gas meter, flow meter with deceleration rectified action |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208833306U true CN208833306U (en) | 2019-05-07 |
Family
ID=66313834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821529014.2U Active CN208833306U (en) | 2018-09-18 | 2018-09-18 | A kind of gas meter, flow meter with deceleration rectified action |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208833306U (en) |
-
2018
- 2018-09-18 CN CN201821529014.2U patent/CN208833306U/en active Active
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