CN103292877B - A kind of on-line testing method of throw-in type liquid transmitter and device thereof - Google Patents
A kind of on-line testing method of throw-in type liquid transmitter and device thereof Download PDFInfo
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- CN103292877B CN103292877B CN201310251770.9A CN201310251770A CN103292877B CN 103292877 B CN103292877 B CN 103292877B CN 201310251770 A CN201310251770 A CN 201310251770A CN 103292877 B CN103292877 B CN 103292877B
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- angle valve
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- liquid level
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Abstract
The present invention specifically discloses a kind of on-line testing method and device thereof of throw-in type liquid transmitter, comprises upper end angle valve, liquid level display silica gel hose, throw-in type liquid transmitter, bottom angle valve, base, support; Base is provided with in described frame bottom, base lateral connection one bottom angle valve, bottom angle valve is connected with upper end angle valve by liquid level display silica gel hose, base longitudinally connects a rubber sleeve, the top of rubber sleeve connects a throw-in type liquid transmitter probe, described rubber sleeve, base, bottom angle valve, upper end angle valve, liquid level display silica gel hose communicates.Beneficial effect of the present invention: by the enforcement of these apparatus and method, can simulate the environment of the different liquid level degree of depth, detect the On-line funchon of throw-in type liquid transmitter.This apparatus structure is easy, is easy to carry, using method is flexible.
Description
Technical field
The present invention relates to a kind of throw-in type liquid transmitter field tests, particularly relate to a kind of on-line testing method and device thereof of throw-in type liquid transmitter.
Background technology
Along with sustained economic growth, city size constantly expand, urban distribution network fast development, throw-in type liquid transmitter is widely used in the increasing place such as water factory, sewage treatment plant, urban water supply, electric power tunnel, needs to carry out periodic inspection test to already installed throw-in type liquid transmitter.Traditional proving installation volume is comparatively large, by space constraint, traditional proving installation cannot be utilized to detect.
When called putting-into-type liquid level meter transmitter has been arranged in cable pipe trench, due to the impact by factors such as gap, device power supply (DPS), angle iron bracket spaces between cable, traditional pick-up unit cannot meet request for utilization.
Summary of the invention
In order to solve the shortcoming that prior art exists, the invention provides a kind of on-line testing method and device thereof of throw-in type liquid transmitter, by the enforcement of these apparatus and method, the environment of the different liquid level degree of depth can be simulated, carry out the function of on-line checkingi throw-in type liquid transmitter.This apparatus structure is easy, is easy to carry, using method is flexible.
The technical solution used in the present invention is as follows:
An online testing device for throw-in type liquid transmitter, comprises upper end angle valve, liquid level display silica gel hose, throw-in type liquid transmitter, bottom angle valve, base, support; Base is provided with in described frame bottom, base lateral connection one bottom angle valve, bottom angle valve is connected with upper end angle valve by liquid level display silica gel hose, base longitudinally connects a rubber sleeve, the top of rubber sleeve connects a throw-in type liquid transmitter probe, described rubber sleeve, base, bottom angle valve, upper end angle valve, liquid level display silica gel hose inside communicates.
Described support is " L " type support.
Described upper end angle valve and bottom angle valve are 4 ' angle valve of standard.
Described base is cup dolly.
Described rubber sleeve is a hollow sleeve, and top is connected with throw-in type liquid transmitter, and bottom is connected with the cup dolly of proving installation.
Described support vertical portion is pipe, and it is marked with scale.
An on-line testing method for throw-in type liquid transmitter, comprises the following steps:
Step 1: by proving installation cup dolly horizontal positioned, makes liquid level show the upper end angle valve of silica gel hose higher than rubber sleeve upper end 1-2 centimetre;
Step 2: open bottom angle valve and upper end angle valve, water filling in rubber sleeve, when water is close to rubber running-on, stops water filling;
Step 3: after stopping water filling, closes upper end angle valve and bottom angle valve;
Step 4: taken out in cable space by throw-in type liquid transmitter probe, screws in rubber sleeve and is about 30mm length by probe;
Step 5: the test fixture assembling probe is put on the flat board of frame bottom;
Step 6: open upper end angle valve and bottom angle valve, shows silica gel hose near support pipe by liquid level, need by test, and change liquid level display silica gel hose height, makes the liquid level liquid level shown in silica gel hose press close to the different scales of support pipe.Throw-in type liquid transmitter probe reports numerical value automatically according to the pressure received.
Test philosophy is as follows:
When throw-in type liquid transmitter puts into a certain degree of depth in fluid to be measured, sensor is met the pressure formula that liquid level is subject to and is:
Ρ=ρ.g.h+Po
In formula: P: transmitter meets liquid level pressure;
ρ: fluid to be measured density;
G: local gravitational acceleration;
Po: atmospheric pressure on liquid level;
H: transmitter drops into the degree of depth of liquid.
Meanwhile, by air guide stainless steel, the pressure of liquid is incorporated into the malleation chamber of sensor, then the atmospheric pressure Po on liquid level is connected with the negative pressure cavity of sensor, with the Po at the offset sensor back side, make sensor record pressure to be: ρ .g.h, obviously, by measuring pressure P, liquid level degree of depth h can be obtained.
Upper end angle valve and bottom angle valve are 4 ' angle valve of standard.In proving installation during water filling, open angle valve, for getting rid of the air in proving installation cavity.After water filling, close angle valve, stop the water in test proving installation to flow out.When testing, opening angle valve, the surface level of proving installation upper end being contacted with air, accepts atmospheric pressure.After being completed, closing angle valve, the water in device cannot be flowed out.
Liquid level display silica gel hose is connected with the angle valve at proving installation two ends, respectively for simulating the height of liquid level.
Throw-in type liquid transmitter is the principle be directly proportional to this liquid height based on surveyed fluid pressure, adopts the piezoresistive effect of diffuse si or Ceramic sensible devices, static pressure is changed into electric signal.Through temperature compensation and linearity correction.Convert 4-20mADC standard current signal to export.The Sensor section of throw-in type liquid transmitter can directly be put in liquid.
Support pipe position indicates scale, is used for laying proving installation main part, and provides a stable Test bench for proving installation.
Beneficial effect of the present invention: by the enforcement of these apparatus and method, can simulate the environment of the different liquid level degree of depth, detect the On-line funchon of throw-in type liquid transmitter.This apparatus structure is easy, is easy to carry, using method is flexible.
Accompanying drawing explanation
Fig. 1 is the proving installation composition schematic diagram of throw-in type liquid transmitter;
In figure, 1. upper end angle valve, 2. liquid level display silica gel hose, 3. throw-in type liquid transmitter, 4. rubber sleeve, 5. cup dolly, angle valve 6., 7. support.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, the proving installation of described a kind of throw-in type liquid transmitter, comprises upper end angle valve 1, liquid level display silica gel hose 2, throw-in type liquid transmitter 3, rubber sleeve 4, cup dolly 5, bottom angle valve 6, support 7.
Wherein upper end angle valve 1 and bottom angle valve 6 are 4 ' angle valve of standard.In proving installation during water filling, open two angle valves, for getting rid of the air in proving installation cavity.After water filling, close two angle valves, stop the water in test proving installation to flow out.When testing, opening two angle valves, the surface level of proving installation upper end being contacted with air, accepts atmospheric pressure.After being completed, closing two angle valves, the water in device cannot be flowed out.
Liquid level display silica gel hose 2 is connected with the angle valve at proving installation two ends, respectively for simulating the height of liquid level.
Throw-in type liquid transmitter 3 is the principles be directly proportional to this liquid height based on surveyed fluid pressure, adopts the piezoresistive effect of diffuse si or Ceramic sensible devices, static pressure is changed into electric signal.Through temperature compensation and linearity correction.Convert 4-20mADC standard current signal to export.The Sensor section of throw-in type liquid transmitter can directly be put in liquid.
Rubber sleeve 4 inside is empty, and pop one's head in throw-in type liquid transmitter 3 and be connected in top, bottom is connected with the cup dolly 5 of proving installation.
Support 7 pipe position indicates scale, is used for laying proving installation main part, and provides a stable Test bench for proving installation.
Cup dolly 5 inside is empty, is used for connecting test bottom of device angle valve and rubber sleeve 4.
Throw-in type liquid transmitter carries out method of testing: by proving installation cup dolly 5 horizontal positioned, liquid level is made to show the upper end angle valve 1 of silica gel hose 2 higher than rubber sleeve 4 upper end, open upper end angle valve 1, bottom angle valve 6, water filling in rubber sleeve 4, when in rubber sleeve 4, water level is close to rubber sleeve 4 mouthfuls of upper ends, stop water filling, close upper end angle valve 1, bottom angle valve 6 simultaneously.Throw-in type liquid transmitter 3 is popped one's head in and to take out in cable space, screw in rubber sleeve 4 about 30mm long.The test fixture assembling probe is put on the flat board of support 7, makes scale vertically press close to base side wall, and placement perpendicular to the ground.Open upper end angle valve 1 and bottom angle valve 6, liquid level is shown the pipe of silica gel hose 2 near support 7.Need by test, the height of change liquid level display silica gel hose 2, makes the liquid level liquid level shown in silica gel hose 2 press close to the different scales of support 7 pipe.Throw-in type liquid transmitter probe reports numerical value automatically according to the pressure received.
After testing throw-in type liquid transmitter 3 probe, repeat above step, test next throw-in type liquid transmitter 3 and pop one's head in.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendments that creative work can make still within protection scope of the present invention.
Claims (5)
1. an online testing device for throw-in type liquid transmitter, is characterized in that: comprise upper end angle valve, liquid level display silica gel hose, throw-in type liquid transmitter, bottom angle valve, base, support; Base is provided with in described frame bottom, base lateral connection one bottom angle valve, bottom angle valve is connected with upper end angle valve by liquid level display silica gel hose, base longitudinally connects a rubber sleeve, the top of rubber sleeve connects a throw-in type liquid transmitter, and described rubber sleeve, base, bottom angle valve, upper end angle valve, liquid level display silica gel hose inside communicate; Described support is " L " type support; Described base is cup dolly.
2. proving installation as claimed in claim 1, is characterized in that: described upper end angle valve and bottom angle valve are 4 ' angle valve of standard.
3. proving installation as claimed in claim 1, is characterized in that: described rubber sleeve is a hollow sleeve, and top is connected with throw-in type liquid transmitter, and bottom is connected with the cup dolly of proving installation.
4. proving installation as claimed in claim 1, is characterized in that: described support vertical portion is pipe, and it is marked with scale.
5. an on-line testing method for the throw-in type liquid transmitter adopting proving installation according to claim 4 to carry out, is characterized in that, comprise the following steps:
Step 1: by proving installation cup dolly horizontal positioned, makes liquid level show the upper end angle valve of silica gel hose higher than rubber sleeve upper end 1-2 centimetre;
Step 2: open bottom angle valve and upper end angle valve, water filling in rubber sleeve, when water is close to rubber running-on, stops water filling;
Step 3: after stopping water filling, closes upper end angle valve and bottom angle valve;
Step 4: throw-in type liquid transmitter taken out in cable space, screws in rubber sleeve 30mm long by throw-in type liquid transmitter;
Step 5: the test fixture assembling throw-in type liquid transmitter is put on the flat board of frame bottom;
Step 6: open upper end angle valve and bottom angle valve, shows silica gel hose near support pipe by liquid level, need by test, and change liquid level display silica gel hose height, makes the liquid level liquid level shown in silica gel hose press close to the different scales of support pipe; Throw-in type liquid transmitter reports numerical value automatically according to the pressure be subject to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310251770.9A CN103292877B (en) | 2013-06-21 | 2013-06-21 | A kind of on-line testing method of throw-in type liquid transmitter and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310251770.9A CN103292877B (en) | 2013-06-21 | 2013-06-21 | A kind of on-line testing method of throw-in type liquid transmitter and device thereof |
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| CN103292877A CN103292877A (en) | 2013-09-11 |
| CN103292877B true CN103292877B (en) | 2016-04-13 |
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| CN116754043B (en) * | 2023-08-18 | 2023-10-31 | 沈阳仪表科学研究院有限公司 | Laboratory is with input type liquid level transmitter installation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0193158A1 (en) * | 1985-02-28 | 1986-09-03 | RLT Ruhrtal Labor-Technik Vertriebs GmbH | Apparatus and method for checking the quantity of liquid delivered by a dispenser |
| CN201000354Y (en) * | 2006-12-29 | 2008-01-02 | 中国南车集团成都机车车辆厂 | Liquid level induction block tester |
| CN102980637A (en) * | 2012-11-26 | 2013-03-20 | 合肥邦立电子股份有限公司 | Liquid level calibration detection device and method for liquid level sensor |
| CN203011493U (en) * | 2012-11-20 | 2013-06-19 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Throw-in type static liquid level transducer calibration device |
| CN203310488U (en) * | 2013-06-21 | 2013-11-27 | 山东康威通信技术股份有限公司 | On-line testing device for throw-in type liquid level transmitter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4114814A1 (en) * | 1991-05-07 | 1992-11-12 | Incatronic Phoenix Messtechnik | Function testing device for container filling level indicator - uses test vol of filling material displaced into contact with level indicator |
| CN201653647U (en) * | 2009-05-13 | 2010-11-24 | 广州中船龙穴造船有限公司 | Synthetic test stand |
| CN202304963U (en) * | 2011-10-26 | 2012-07-04 | 常州博朗低温设备有限公司 | Online testing device for differential-pressure-type liquid level meter |
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2013
- 2013-06-21 CN CN201310251770.9A patent/CN103292877B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0193158A1 (en) * | 1985-02-28 | 1986-09-03 | RLT Ruhrtal Labor-Technik Vertriebs GmbH | Apparatus and method for checking the quantity of liquid delivered by a dispenser |
| CN201000354Y (en) * | 2006-12-29 | 2008-01-02 | 中国南车集团成都机车车辆厂 | Liquid level induction block tester |
| CN203011493U (en) * | 2012-11-20 | 2013-06-19 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Throw-in type static liquid level transducer calibration device |
| CN102980637A (en) * | 2012-11-26 | 2013-03-20 | 合肥邦立电子股份有限公司 | Liquid level calibration detection device and method for liquid level sensor |
| CN203310488U (en) * | 2013-06-21 | 2013-11-27 | 山东康威通信技术股份有限公司 | On-line testing device for throw-in type liquid level transmitter |
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| CN103292877A (en) | 2013-09-11 |
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Address after: 250101 A203, block F, entrepreneurship square, Qilu Software Park, No.1 Shunhua Road, high tech Development Zone, Jinan City, Shandong Province Patentee after: Conway Communication Technology Co., Ltd Address before: 250101 Qilu Software Park, No. 1 Shunhua Road, Jinan High-tech Development Zone, Shandong Province, A 203 Patentee before: SHANDONG KANGWEI COMMUNICATION TECHNOLOGY Co.,Ltd. |