CN204388924U - Flow-guiding structure after a kind of gas meter - Google Patents
Flow-guiding structure after a kind of gas meter Download PDFInfo
- Publication number
- CN204388924U CN204388924U CN201420826998.6U CN201420826998U CN204388924U CN 204388924 U CN204388924 U CN 204388924U CN 201420826998 U CN201420826998 U CN 201420826998U CN 204388924 U CN204388924 U CN 204388924U
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- kuppe
- flow
- shaped
- gas channel
- ring
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Abstract
The utility model relates to flow-guiding structure after a kind of gas meter, former dome, the coaxial assembling of order successively of body and rear kuppe, kuppe, the gas channel be axially communicated with all is shaped with in body and rear kuppe, impeller assembly is coaxially installed with in body, this impeller assembly is rotated by the air stream drives flow through in gas channel, by detecting the airshed passed through in the vane rotary number of turns and rotational speed calculating pipeline, described rear pod body is a cylinder barrel shaped structure, in rear kuppe, coaxial sleeve is equipped with a fair water sleeves, in this fair water sleeves, radial direction is fixed with the dividing plate of right-angled intersection, rear kuppe outer end is coaxially shaped with a stopper slot, the coaxial spacing back-up ring of setting-in in this stopper slot, the spacing fixing fair water sleeves of this spacing back-up ring inner ring.The utility model structure is simple, reliable and stable, highly sensitive, accurate measurement, and water conservancy diversion is effective, little to gas-flow resistance, and the ability of anti-dielectric corrosion is strong, and measuring accuracy is high, and mounting structure simple, be convenient to safeguard.
Description
Technical field
The utility model belongs to instrument manufacture field, flow-guiding structure after especially a kind of gas meter.
Background technology
Gas meter is mounted in the volumetric flow rate of meter gaseous in pipeline, and display reading directly indicates matter person's flow of gas, all can select under the condition of normal pressure, high pressure or negative pressure, realizes discharge record after also can coordinating with other instrument.Existing flowmeter is too simple, exists and rub, affect velocity of rotation flexibility ratio during impeller Forced rotation and between mounting structure, and flow-guiding structure and impeller installation cooperation cause the deviation to gas volume detection, can affect the accuracy of flowmeter.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides that a kind of structure is simple, reliable and stable, highly sensitive, flow-guiding structure after the gas meter of accurate measurement.
The utility model solves its technical matters and takes following technical scheme to realize:
Flow-guiding structure after a kind of gas meter, comprise former dome, body, rear kuppe, gas channel and impeller assembly, described former dome, the coaxial assembling of order successively of body and rear kuppe, kuppe, the gas channel be axially communicated with all is shaped with in body and rear kuppe, impeller assembly is coaxially installed with in body, this impeller assembly is rotated by the air stream drives flow through in gas channel, by detecting the airshed passed through in the vane rotary number of turns and rotational speed calculating pipeline, it is characterized in that: described rear pod body is a cylinder barrel shaped structure, in rear kuppe, coaxial sleeve is equipped with a fair water sleeves, in this fair water sleeves, radial direction is fixed with the dividing plate of right-angled intersection, rear kuppe outer end is coaxially shaped with a stopper slot, the coaxial spacing back-up ring of setting-in in this stopper slot, the spacing fixing fair water sleeves of this spacing back-up ring inner ring.
And multiple screws that described spacing back-up ring is installed by radial equipartition are fixed on rear kuppe.
And be coaxially shaped with water conservancy diversion sphere in the middle part of the axial outer end of described former dome, on the former dome end face of water conservancy diversion sphere periphery, radial equipartition is shaped with the gas channel of multistage arc.
Advantage of the present utility model and good effect are:
The utility model structure is simple, reliable and stable, highly sensitive, accurate measurement, and water conservancy diversion is effective, little to gas-flow resistance, and the ability of anti-dielectric corrosion is strong, and measuring accuracy is high, and mounting structure simple, be convenient to safeguard.
Accompanying drawing explanation
Fig. 1 is the utility model contour structures schematic diagram;
Fig. 2 is the right view of Fig. 1;
Fig. 3 cuts open schematic enlarged-scale view in Fig. 1;
Fig. 4 is the enlarged diagram of rear flow-guiding structure part in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
Flow-guiding structure after a kind of gas meter, comprise former dome 3, body 2, rear kuppe 1, gas channel 9 and impeller assembly 10, the coaxial assembling of order successively of described former dome, body and rear kuppe, the gas channel be axially communicated with all is shaped with in kuppe, body and rear kuppe, impeller assembly is coaxially installed with in body, this impeller assembly is rotated by the air stream drives flow through in gas channel, by detecting the airshed passed through in the vane rotary number of turns and rotational speed calculating pipeline.
Innovative point of the present utility model is:
Water conservancy diversion sphere 4 is coaxially shaped with in the middle part of the axial outer end of former dome, gas in the middle part of pipeline is through water conservancy diversion spherical transition outside Zhou Liudong smoothly, on the former dome end face of water conservancy diversion sphere periphery, radial equipartition is shaped with the gas channel of three sections of arcs, and the two ends of gas channel are all made as semicircular arc transition.
Rear pod body is a cylinder barrel shaped structure, and in rear kuppe, coaxial sleeve is equipped with a fair water sleeves 11, and in this fair water sleeves, radial direction is fixed with the dividing plate 7 of right-angled intersection; Rear kuppe outer end is coaxially shaped with a stopper slot 5, the coaxial spacing back-up ring 6 of setting-in in this stopper slot, and four screws 8 that spacing back-up ring is installed by radial equipartition are fixed on rear kuppe, and the spacing fixing fair water sleeves of this spacing back-up ring inner ring.
The parts of this structure adopt stainless steel material machine work to make respectively, and structural strength is high, corrosion-resistant, long service life.
Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, therefore, scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (3)
1. flow-guiding structure after a gas meter, comprise former dome, body, rear kuppe, gas channel and impeller assembly, described former dome, the coaxial assembling of order successively of body and rear kuppe, kuppe, the gas channel be axially communicated with all is shaped with in body and rear kuppe, impeller assembly is coaxially installed with in body, this impeller assembly is rotated by the air stream drives flow through in gas channel, by detecting the airshed passed through in the vane rotary number of turns and rotational speed calculating pipeline, it is characterized in that: described rear pod body is a cylinder barrel shaped structure, in rear kuppe, coaxial sleeve is equipped with a fair water sleeves, in this fair water sleeves, radial direction is fixed with the dividing plate of right-angled intersection, rear kuppe outer end is coaxially shaped with a stopper slot, the coaxial spacing back-up ring of setting-in in this stopper slot, the spacing fixing fair water sleeves of this spacing back-up ring inner ring.
2. flow-guiding structure after gas meter according to claim 1, is characterized in that: multiple screws that described spacing back-up ring is installed by radial equipartition are fixed on rear kuppe.
3. flow-guiding structure after gas meter according to claim 1, is characterized in that: be coaxially shaped with water conservancy diversion sphere in the middle part of the axial outer end of described former dome, on the former dome end face of water conservancy diversion sphere periphery, radial equipartition is shaped with the gas channel of multistage arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420826998.6U CN204388924U (en) | 2014-12-22 | 2014-12-22 | Flow-guiding structure after a kind of gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420826998.6U CN204388924U (en) | 2014-12-22 | 2014-12-22 | Flow-guiding structure after a kind of gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204388924U true CN204388924U (en) | 2015-06-10 |
Family
ID=53361635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420826998.6U Expired - Fee Related CN204388924U (en) | 2014-12-22 | 2014-12-22 | Flow-guiding structure after a kind of gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204388924U (en) |
-
2014
- 2014-12-22 CN CN201420826998.6U patent/CN204388924U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |