CN201788002U - Small-bore flow meter detecting device - Google Patents
Small-bore flow meter detecting device Download PDFInfo
- Publication number
- CN201788002U CN201788002U CN2010205096328U CN201020509632U CN201788002U CN 201788002 U CN201788002 U CN 201788002U CN 2010205096328 U CN2010205096328 U CN 2010205096328U CN 201020509632 U CN201020509632 U CN 201020509632U CN 201788002 U CN201788002 U CN 201788002U
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- China
- Prior art keywords
- valve
- flow meter
- calibrating
- water
- water tank
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a small-bore flow meter detecting device, which comprises a high-position pool connected with a water replenishing valve and a flow control valve connected with the high-position pool, wherein the flow control valve is connected with a detecting channel, the detecting channel is in a U shape, the U-shaped section is provided with a pipe change joint, and the detected flow meter is connected with the detecting channel through the pipe change joint; the other end of the detecting device is connected with a solenoid valve; the solenoid valve is in pipe connection with a water tank connected with a liquid level switch, the water tank is arranged on an electronic platform scale, and the water tank is provided with a drain valve and is connected with a collected liquid groove via the drain valve; and the collected liquid groove is connected with a water circulation pump and is connected with the high-position pool through the water circulation pump and a pipeline. The small-bore flow meter detecting device solves the problems in accurately and conveniently detecting and calibrating the flow meter, and is suitable for detecting the small-bore flow meter.
Description
Technical field
The utility model relates to calibrating or the verification to the instrumentation of measuring fluid flow, relates in particular to a kind of small-bore flow instrument calibrating installation.
Background technology
Liquid meter is the important process in chemical industry production procedure and the sales section, flow instrument measures when inaccurate, heavy then may cause production run control failure, gently then cause production cost appearance dispute and product quality can not satisfy customer requirement, therefore need often flow instrument to be examined and determine and calibrated, enterprise not only require to guarantee to measure accurately, also require the convenient of measuring instrument equipment calibrating.The liquid meter meter is a measurement instrument of listing national compulsory calibrating catalogue in.In order to solve flow instrument calibrating and calibration problem, people have done a lot of research, as Chinese patent ZL200820105367.X " the small-sized flowmeter verification device of vehicular ", Chinese patent ZL200920052606.4 " a kind of liquid flowmeter calibrating installation " etc. respectively has its advantage, but yet has some deficiency.
Summary of the invention
The purpose of this utility model is in order to overcome the defective of prior art, and simple in structure, practical, effective a kind of small-bore flow instrument calibrating installation is provided, with guarantee to flow instrument examine and determine and calibrate accurately and convenient.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of small-bore flow instrument calibrating installation, it comprises:
Be connected to the head-tank of water compensating valve;
The flowrate control valve that connects head-tank;
Flowrate control valve connects the calibrating passage, and the calibrating passage becomes the U type, and U type section is equipped with the replace tubes joint, and tested constant flow meter inserts the calibrating passage by the replace tubes joint;
Another termination solenoid valve of calibrating passage;
Solenoid valve connects with the cistern tube that is connected to level switch, and water tank is placed on the electronic platform scale;
Water tank is equipped with draining valve and receives intercepting basin through draining valve;
Collecting liquid bath is connected to water-circulating pump and is connected head-tank by water-circulating pump with pipeline.
Flowrate control valve is continuity, the stability that is used for guaranteeing fluid, the measuring process of flow instrument is in stablizes the ripple disable state; The calibrating passage becomes the U type, and the U type is curved has guaranteed that the liquid in the calibrating passage keeps the full packages state, can also carry out zero point correction and demarcation to tested constant flow instrument under the situation of static state; The straight length standard of tested constant flow instrument is satisfied in the requirement of 5D behind the 10D before straight length should reach before and after the tested constant flow instrument; The replace tubes joint is in order to realize the calibrating of different small-bore flow instruments, if when the bore of tested constant flow instrument is 1 inch caliber, just selects straight coupling; When the bore of tested constant flow instrument during, then select and reducer union that tested constant flow instrument is complementary, thereby realize the calibrating of different small-bore flow instruments less than 1 inch pipe; Solenoid valve and level switch are can not overflow in order to ensure the water in the water tank in the process of calibrating.The precision of electronic platform scale should satisfy the accuracy requirement of flowmeter fully.
The utility model has solved the accurate and convenient problem that flow instrument is examined and determine and calibrated.
A kind of young run-off instrument calibration device that the utility model provides uses proof by reality, has reached predetermined purpose, is applicable to small-bore flow instrument calibrating.
Description of drawings
Accompanying drawing is a structural representation of the present utility model;
In the accompanying drawing: 1, water compensating valve; 2, head-tank; 3, flowrate control valve; 4 calibrating passages; 5, the replace tubes joint; 6, tested constant flow meter; 7, solenoid valve; 8 level switches; 9, water tank; 10, electronic platform scale; 11 draining valves; 12, collect liquid bath; 13, water-circulating pump.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment:
Accompanying drawing has been illustrated structure of the present utility model, a kind of small-bore flow instrument calibrating installation, and it comprises:
Be connected to the head-tank 2 of water compensating valve 1;
The flowrate control valve 3 that connects head-tank 2;
Flowrate control valve 3 connects calibrating passage 4,4 one-tenth U types of calibrating passage, and U type section is equipped with replace tubes joint 5, and tested constant flow meter 6 inserts calibrating passage 4 by replace tubes joint 5;
Calibrating passage 4 another termination solenoid valves 7;
Solenoid valve 7 connects with water tank 9 pipes that are connected to level switch 8, and water tank 9 is placed on the electronic platform scale 10,
Water tank 9 is put draining valve 11 and is received intercepting basin 12 through draining valve 11;
Collect liquid bath 12 water receiving ebullators 13 and be connected head-tank 2 with pipeline by water-circulating pump 13.
Earlier tested constant flow meter 6 is installed on calibrating passage 4 when flow instrument is examined and determine, at first the water tank 9 that is placed on the electronic platform scale 10 carried out the weighing of tare weight, and carry out this work of zero clearing: open flowrate control valve 3 and solenoid valve 7, by the time the induction pipe of water tank 9 has fluid to flow out, close solenoid valve 7, open draining valve 11 with the liquid emptying in the water tank 9, affirmation water tank 9 water inlet pipe no liquid flow out closes draining valve 11; Observing flow instrument and have or not indication, should be that no fluid flows because examine and determine this moment in the passage 4, and the state that is keeping fluid to be full of in the calibrating passage 4; If at this moment the flow indication is arranged, just carry out the flow instrument zero point correction, guarantee the accuracy at zero point, and electronic platform scale 10 is carried out zero clearing work, guarantee that electronic platform scale 10 is designated as zero; Again the accumulated value of tested constant flow meter 6 is removed, guaranteed that accumulated value is zero.By opening into water button, open flowrate control valve 3 and solenoid valve 7, begin water inlet in the water tank 9, tested constant flow meter 6 begins to carry out the accumulation work of flow measurement process.Electronic platform scale 10 begins to carry out the quality weighing of water; This process will last till that the liquid level of liquid in the water tank 9 reaches till level switch 8 positions, and this moment, control loop will be closed solenoid valve 7 automatically, blocked the water inlet of water tank 9.Read the data of electronic platform scale 10 weighings, this reading is the one-period semi-invariant of these tested constant flow meter 6 calibratings.The cumulative data by tested constant flow meter 6 and the weighing data of electronic platform scale 10 calculate the error of the tested constant flow meter 6 of this verification process.
Claims (1)
1. small-bore flow instrument calibrating installation is characterized in that it comprises:
Be connected to the head-tank (2) of water compensating valve (1);
The flowrate control valve (3) that connects head-tank (2);
Flowrate control valve (3) connects calibrating passage (4), and calibrating passage (4) becomes the U type, and U type section is equipped with replace tubes joint (5), and tested constant flow meter (6) inserts calibrating passage (4) by replace tubes joint (5);
Another termination solenoid valve (7) of calibrating passage (4);
Solenoid valve (7) connects with water tank (9) pipe that is connected to level switch (8), and water tank (9) is placed on the electronic platform scale (10);
Water tank (9) is put draining valve (11) and is received intercepting basin (12) through draining valve (11);
Collect liquid bath (12) water receiving ebullator (13) and be connected head-tank (2) with pipeline by water-circulating pump (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205096328U CN201788002U (en) | 2010-08-30 | 2010-08-30 | Small-bore flow meter detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205096328U CN201788002U (en) | 2010-08-30 | 2010-08-30 | Small-bore flow meter detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788002U true CN201788002U (en) | 2011-04-06 |
Family
ID=43819961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205096328U Expired - Lifetime CN201788002U (en) | 2010-08-30 | 2010-08-30 | Small-bore flow meter detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798443A (en) * | 2012-08-09 | 2012-11-28 | 丹东意邦计量仪器仪表有限公司 | Small-bore high-pressure water injection meter detecting device for oil recovery and gas recovery in oil field |
-
2010
- 2010-08-30 CN CN2010205096328U patent/CN201788002U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798443A (en) * | 2012-08-09 | 2012-11-28 | 丹东意邦计量仪器仪表有限公司 | Small-bore high-pressure water injection meter detecting device for oil recovery and gas recovery in oil field |
| CN102798443B (en) * | 2012-08-09 | 2015-02-18 | 丹东意邦计量仪器仪表有限公司 | Small-bore high-pressure water injection meter detecting device for oil recovery and gas recovery in oil field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |