CN209230701U - A kind of side plate of gas meter, flow meter gas roots flowmeter - Google Patents
A kind of side plate of gas meter, flow meter gas roots flowmeter Download PDFInfo
- Publication number
- CN209230701U CN209230701U CN201822083032.9U CN201822083032U CN209230701U CN 209230701 U CN209230701 U CN 209230701U CN 201822083032 U CN201822083032 U CN 201822083032U CN 209230701 U CN209230701 U CN 209230701U
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- gas
- side plate
- bearing
- cavity
- mounting hole
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- 206010069747 Burkholderia mallei infection Diseases 0.000 abstract description 12
- 239000012535 impurity Substances 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 42
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to gas roots flowmeter technical fields, specifically a kind of side plate of gas meter, flow meter gas roots flowmeter, including side plate body, bearing mounting hole there are two being set on side plate body, bearing is installed on the inside of one end of bearing mounting hole, the contact surface of bearing mounting hole and bearing is equipped with air channel, and one end of air channel is connect with end cap cavity, and the other end of air channel is connect with metering cavity.The utility model is compared with the existing technology, increase ventilation slot structure in the position of bearing mounting hole, when metering cavity and the intracorporal gas of front and rear cover chamber are fluctuated due to gas pressure, air-flow flows through air channel to complete, during gas roots flowmeter is used for a long time, avoid there is a situation where because bearing by impurity, dust pollution due to influenced rotz flowmeter service precision and service life, it is ensured that the normal use of rotz flowmeter.
Description
Technical field
The utility model relates to gas roots flowmeter technical field, specifically a kind of gas meter, flow meter gas roots amount
The side plate of meter.
Background technique
Gas roots flowmeter is a kind of volumetric flow metering instrument of precise measurement gas flow.Gas roots amount
Meter have the characteristics that precision height, good reliability, light-weight, the service life is long, running noises are low, suitable for measure natural gas, town gas,
The noncorrosive gases such as propane, nitrogen, industrial inertia gas, the combustion gas business for being widely used in the industries such as food and drink, hotel are settled accounts,
Transmission and distribution network gas metering, gas pressure regulating station metering, the gas meterings such as industry and civil boiler.
Referring to Fig. 1, gas roots flowmeter includes rear end cap 1, synchromesh gear 2, bearing 3, back side panel 4, shell 5, rotor
6, front side board 7, drive end bearing bracket 8, counter 9, the working principle of gas roots flowmeter are as follows: when gas passes through gas roots amount
Timing generates pressure difference in inlet end and outlet side, acts on the double waist wheels being linked together with high-accuracy synchromesh gear, thus
Double waist wheel rotations are driven, confined space is formed between double waist wheels and flowmeter shell inner wall and gland during this period, comes periodically
Inflation and exhaust, the revolution of double waist wheels to by the gas volume amount of flowmeter it is directly proportional, the rotation of double waist wheels is through magnetic coupling
Device passes to mechanical counter, thus the accumulative volume for flowing through measurement chamber, to realize the purpose of metering.
For gas roots flowmeter in normal use process, the gas pressure in pipeline is more constant, and waist wheel runs well,
Crushing very little between rotz flowmeter entrance end, gas flow directly into downstream user with pipeline.But the air pressure in pipeline goes out
When now fluctuating, the metering cavity of rotz flowmeter and the cavity of front and rear cover just will appear pressure difference, so as to cause each cavity it
Between gas swap convection current, gas can only just circulate from the inner and outer ring gap of bearing.If there is frequent gas exchanges,
Impurity in gas will be stacked at the gap of bearing, to pollute bearing, influenced the rotation of bearing, caused rotz flowmeter
Precision fission, shorten the working life.
Therefore, it is necessary to design a kind of side plate of gas meter, flow meter gas roots flowmeter, pollution of the bearing by impurity is avoided, it is ensured that
Rotz flowmeter being capable of normal use.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies of the prior art and provide a kind of gas meter, flow meter gas roots flowmeters
Side plate avoids pollution of the bearing by impurity, it is ensured that rotz flowmeter being capable of normal use.
In order to achieve the above object, the utility model is a kind of side plate of gas meter, flow meter gas roots flowmeter, including side plate
Ontology, it is characterised in that: it is set on side plate body there are two bearing mounting hole, one end inside of bearing mounting hole is equipped with bearing,
The contact surface of bearing mounting hole and bearing is equipped with air channel, and one end of air channel connect with end cap cavity, air channel it is another
End is connect with metering cavity.
The side plate body is located at the both ends of shell, and the outer side covering of side plate body has drive end bearing bracket or rear end cap, described
The cavity that is formed between drive end bearing bracket or rear end cap and side plate body of end cap cavity, the metering cavity is shell and side plate
The cavity formed between ontology.
Rotor is equipped in the metering cavity, the both ends of rotor and the end of bearing connect.
Synchromesh gear, the other end connection of synchromesh gear and bearing are equipped in the rear end cap.
Counter is equipped on the outside of the drive end bearing bracket.
The utility model compared with the existing technology, in the position of bearing mounting hole increases ventilation slot structure, in metering cavity
When being fluctuated with the intracorporal gas of front and rear cover chamber due to gas pressure, air-flow flows through air channel to complete, in gas
During body rotz flowmeter is used for a long time, avoid occurring because bearing by impurity, dust pollution due to influenced rotz flowmeter
The case where service precision and service life, it is ensured that the normal use of rotz flowmeter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of gas roots flowmeter.
Fig. 2 is the structure chart of the utility model.
Fig. 3 is the airflow schematic diagram of the utility model.
Fig. 4 is the structural schematic diagram using the gas roots flowmeter of the utility model.
Specific embodiment
The utility model is described further now in conjunction with attached drawing.
Referring to figure 2-3, the utility model is a kind of side plate of gas meter, flow meter gas roots flowmeter, including side plate body, side
It is set on plate ontology 15 there are two bearing mounting hole 14, one end inside of bearing mounting hole 14 is equipped with bearing 3, bearing mounting hole 14
Be equipped with air channel 13 with the contact surface of bearing 3, one end of air channel 13 is connect with end cap cavity, the other end of air channel 13 and
Metering cavity 11 connects.
Referring to fig. 4, in the utility model, side plate body 15 is located at the both ends of shell 5, and the outer side covering of side plate body 15 has
Drive end bearing bracket 8 or rear end cap 1, the cavity that the end cap cavity is formed between drive end bearing bracket 8 or rear end cap 1 and side plate body 15,
The cavity that the metering cavity 11 is formed between shell 5 and side plate body 15.
Rotor 6 is equipped in metering cavity 11, the both ends of rotor 6 are connect with the end of bearing 3.It is equipped with and synchronizes in rear end cap 1
Gear 2, synchromesh gear 2 are connect with the other end of bearing 3.Counter 9 is equipped on the outside of drive end bearing bracket 8.
When the utility model at work, the gas in metering cavity 11 and drive end bearing bracket cavity 12, rear end cap cavity 10 by
When gas pressure fluctuates, air-flow flows through air channel 13 to complete, and is used for a long time in gas roots flowmeter
In the process, avoid there is a situation where because bearing 3 by impurity, dust pollution due to influenced rotz flowmeter service precision and service life,
Ensure the normal use of rotz flowmeter.
Claims (5)
1. a kind of side plate of gas meter, flow meter gas roots flowmeter, including side plate body, it is characterised in that: side plate body is set on (15)
There are two bearing mounting hole (14), it is equipped with bearing (3) on the inside of one end of bearing mounting hole (14), bearing mounting hole (14) and axis
The contact surface for holding (3) is equipped with air channel (13), and one end of air channel (13) connect with end cap cavity, air channel (13) it is another
End is connect with metering cavity (11).
2. a kind of side plate of gas meter, flow meter gas roots flowmeter according to claim 1, it is characterised in that: the side plate
Ontology (15) is located at the both ends of shell (5), and the outer side covering of side plate body (15) has drive end bearing bracket (8) or rear end cap (1), described
The cavity that end cap cavity is formed between drive end bearing bracket (8) or rear end cap (1) and side plate body (15), the metering cavity (11)
The cavity formed between shell (5) and side plate body (15).
3. a kind of side plate of gas meter, flow meter gas roots flowmeter according to claim 2, it is characterised in that: the metering
Rotor (6) are equipped in cavity (11), the both ends of rotor (6) are connect with the end of bearing (3).
4. a kind of side plate of gas meter, flow meter gas roots flowmeter according to claim 2, it is characterised in that: the rear end
It covers in (1) and is equipped with synchromesh gear (2), synchromesh gear (2) is connect with the other end of bearing (3).
5. a kind of side plate of gas meter, flow meter gas roots flowmeter according to claim 2, it is characterised in that: the front end
It covers on the outside of (8) and is equipped with counter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822083032.9U CN209230701U (en) | 2018-12-12 | 2018-12-12 | A kind of side plate of gas meter, flow meter gas roots flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822083032.9U CN209230701U (en) | 2018-12-12 | 2018-12-12 | A kind of side plate of gas meter, flow meter gas roots flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209230701U true CN209230701U (en) | 2019-08-09 |
Family
ID=67507345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822083032.9U Active CN209230701U (en) | 2018-12-12 | 2018-12-12 | A kind of side plate of gas meter, flow meter gas roots flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209230701U (en) |
-
2018
- 2018-12-12 CN CN201822083032.9U patent/CN209230701U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 800 Songda Road, Qingpu District, Shanghai, 201799 Patentee after: ZENNER Metering Technology (Shanghai) Ltd. Country or region after: China Address before: 201703 building 4, No. 6558, Yinggang East Road, Qingpu District, Shanghai Patentee before: ZENNER Metering Technology (Shanghai) Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |