CN206563595U - A kind of water meter calibration vacuum generator - Google Patents
A kind of water meter calibration vacuum generator Download PDFInfo
- Publication number
- CN206563595U CN206563595U CN201720167637.9U CN201720167637U CN206563595U CN 206563595 U CN206563595 U CN 206563595U CN 201720167637 U CN201720167637 U CN 201720167637U CN 206563595 U CN206563595 U CN 206563595U
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- Prior art keywords
- conical section
- tube
- inner tube
- internal diameter
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000007921 spray Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The utility model is related to originally drainage facility field, particularly discloses a kind of water meter calibration vacuum generator.It includes water inlet pipe, connecting tube and the outlet pipe being threadedly coupled successively, the water inlet pipe includes direct tube section and conical section, conical section is located in connecting tube, inner tube is provided with the outlet pipe, the internal diameter of inner tube is equal to the internal diameter of conical section, gap is left between the exit of conical section and the import of inner tube, the internal diameter in the conical section exit and the length ratio of inner tube are 1:17‑18.5；The connecting tube is provided with two connecting holes.The utility model is due to being provided with the water inlet pipe being made up of direct tube section and conical section, when current flow through conical section, because outlet attenuates, when current spray and enter inner tube, negative pressure will be produced at gap between conical section and inner tube, it is convenient, fast and thorough so as to which the exhaust tube connected by connection hole all takes the air in table to be measured away.
Description
（One）Technical field
The utility model is related to originally drainage facility field, more particularly to a kind of water meter calibration vacuum generator.
（Two）Background technology
Water meter needs the accuracy of metering to be examined and determine before dispatching from the factory, water meter calibration is not only convenient for administrative department of measurement pair
Manufacture, the quality for the measurement instrument repaired exercise supervision inspection, it is ensured that the accuracy for the water meter that dispatches from the factory, and safeguard the personal profit of user
Benefit, moreover it is possible to comply with utility network, intelligentized development trend and have there is provided the table that flexibility is high, extended capability is strong, effectively
The management requirement for meeting Running-water Company and industry, therefore, applicants have invented a kind of water meter calibration, in the system
In, because the air of water meter to be measured energy can not be fully erased clean, it is therefore desirable to which one can thoroughly remove the device of air.
（Three）The content of the invention
There is provided a kind of water for thoroughly removing air in water meter to be measured for the defect that makes up prior art for the utility model
Table verification system vacuum generator.
The utility model is achieved by the following technical solution：
A kind of water meter calibration vacuum generator, it is characterized in that, including be threadedly coupled successively water inlet pipe, connecting tube
And outlet pipe, the water inlet pipe includes direct tube section and conical section, and conical section is located in connecting tube, provided with interior in the outlet pipe
Pipe, the internal diameter of inner tube is equal to the internal diameter of conical section, and gap, the circular cone are left between the exit of conical section and the import of inner tube
Section exit internal diameter and inner tube length ratio be 1:17-18.5；The connecting tube is provided with two connecting holes.
The internal diameter in the conical section exit and the length ratio of inner tube are 9:160.
The beneficial effects of the utility model are：
The utility model is due to being provided with the water inlet pipe being made up of direct tube section and conical section, when current flow through conical section,
Because outlet attenuates, when current spray and enter inner tube, negative pressure will be produced at the gap between conical section and inner tube, from
It is convenient, fast and thorough and the exhaust tube connected by connection hole all takes the air in table to be measured away.
（Four）Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings：
Fig. 1 is main structure diagram of the present utility model；
Fig. 2 is cross section structure diagram of the present utility model.
In figure, 30 water inlet pipes, 301 direct tube sections, 302 conical sections, 31 connecting tubes, 32 outlet pipes, 33 inner tubes, 34 connecting holes,
35 gaps, D internal diameters, d inner tube lengths.
（Five）Embodiment
Accompanying drawing is specific embodiment of the utility model.As shown in Figure 1 and Figure 2, this kind of water meter calibration occurs with vacuum
Device, including water inlet pipe 30, connecting tube 31 and outlet pipe 32, water inlet pipe 30 include direct tube section 301 and conical section 302, direct tube section 301
It is threadedly coupled with connecting tube 31 and conical section 302 is located in connecting tube 31, outlet pipe 32 is threadedly coupled with connecting tube 31, is being gone out
Inner tube 33 is provided with water pipe 32, inner tube 33 and outlet pipe 32 are made into integration, when water inlet pipe 30, connecting tube 31 and outlet pipe 32
After connecting together, gap 35, the internal diameter D of inner tube 33 etc. are left between the port of export of conical section 302 and the entrance point of inner tube 33
In the internal diameter D of conical section 302, the ratio between the internal diameter D and inner tube length d in the exit of conical section 302 are 1:17-18.5, preferably 9:
160, that is to say, that the internal diameter D in the exit of conical section 302 is 9mm, inner tube length d is 160mm；Two are provided with connecting tube 31
Connecting hole 34, one is used to connect exhaust tube, and exhaust tube is welded on the connecting hole；Another is used to connect pressure gauge, at this
A pipe is welded on connecting hole, then pressure gauge is installed on pipe.
The utility model is connected on the distributive pipe of water meter calibration, and one of connecting hole 34 is connected with exhaust tube,
And exhaust tube is connected in main detection pipe and communicated with table to be measured, when water flows through conical section 302, because outlet attenuates, work as current
When spraying and entering inner tube 33, negative pressure will be produced at the gap 35 between conical section 302 and inner tube 33, so as to pass through connection
The exhaust tube connected at hole 34 all takes the air in table to be measured away.
In addition to technical characteristic described in specification, remaining technical characteristic is technology known to those skilled in the art.
Claims (2)
1. a kind of water meter calibration vacuum generator, it is characterized in that, including the water inlet pipe being threadedly coupled successively（30）, connection
Pipe（31）And outlet pipe（32）, the water inlet pipe（30）Including direct tube section（301）And conical section（302）, conical section（302）It is located at
Connecting tube（31）It is interior, the outlet pipe（32）It is interior to be provided with inner tube（33）, inner tube（33）Internal diameter be equal to conical section（302）Internal diameter
（D）, conical section（302）Exit and inner tube import between leave gap（35）, the conical section（302）Exit it is interior
Footpath（D）With the length of inner tube（d）The ratio between be 1:17-18.5；The connecting tube（31）Provided with two connecting holes（34）.
2. water meter calibration vacuum generator according to claim 1, it is characterized in that, the conical section（302）Go out
Internal diameter at mouthful（D）With the length of inner tube（d）The ratio between be 9:160.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720167637.9U CN206563595U (en) | 2017-02-24 | 2017-02-24 | A kind of water meter calibration vacuum generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720167637.9U CN206563595U (en) | 2017-02-24 | 2017-02-24 | A kind of water meter calibration vacuum generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206563595U true CN206563595U (en) | 2017-10-17 |
Family
ID=60031470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720167637.9U Active CN206563595U (en) | 2017-02-24 | 2017-02-24 | A kind of water meter calibration vacuum generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206563595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871996A (en) * | 2017-02-24 | 2017-06-20 | 济南三宇仪表设备有限公司 | A kind of water meter calibration vacuum generator |
-
2017
- 2017-02-24 CN CN201720167637.9U patent/CN206563595U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871996A (en) * | 2017-02-24 | 2017-06-20 | 济南三宇仪表设备有限公司 | A kind of water meter calibration vacuum generator |
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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: 264100 Renren Street 359, Dayao Street, Mouping District, Yantai City, Shandong Province Patentee after: Shandong Sanyu Intelligent Equipment Co., Ltd. Address before: Room 322, Public Building No. 1, Dianliuxincun District 3, Lixia District, Jinan City, Shandong Province, 250000 Patentee before: Jinan three space instrumentation company limited |
|
| CP03 | Change of name, title or address |