CN2886538Y - Computer detector for multi-path valve - Google Patents

Computer detector for multi-path valve Download PDF

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Publication number
CN2886538Y
CN2886538Y CN 200620025799 CN200620025799U CN2886538Y CN 2886538 Y CN2886538 Y CN 2886538Y CN 200620025799 CN200620025799 CN 200620025799 CN 200620025799 U CN200620025799 U CN 200620025799U CN 2886538 Y CN2886538 Y CN 2886538Y
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CN
China
Prior art keywords
valve
control valves
direction control
banked direction
connects
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 - Fee Related
Application number
CN 200620025799
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Chinese (zh)
Inventor
赵若采
刘雅生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN PETROCHEMICAL UNIVERSAL MACHINERY RESEARCH INSTITUTE
TIANJIN PETROCHEMICAL UNIVERSA
Original Assignee
TIANJIN PETROCHEMICAL UNIVERSAL MACHINERY RESEARCH INSTITUTE
TIANJIN PETROCHEMICAL UNIVERSA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANJIN PETROCHEMICAL UNIVERSAL MACHINERY RESEARCH INSTITUTE, TIANJIN PETROCHEMICAL UNIVERSA filed Critical TIANJIN PETROCHEMICAL UNIVERSAL MACHINERY RESEARCH INSTITUTE
Priority to CN 200620025799 priority Critical patent/CN2886538Y/en
Application granted granted Critical
Publication of CN2886538Y publication Critical patent/CN2886538Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a multi-port valve computer detecting device which belongs to automatic detecting technical area, comprising a computer and an electromagnetic valve, characterized in that a hydraulic pipe is connected with the multi-port valve, the leakage orifice of the multi-port is connected with the liquor inlet electromagnetic valve by a pipe, the liquor inlet electromagnetic valve is connected with a gauge by a pipe, a liquid level transducer is installed at the bottom of the gauge, the electromagnetic valve and the liquid level transducer are connected with the computer. The utility model utilizes one apparatus to replace a plurality of apparatuses, has the advantages of wide measuring extent, low manufacturing cost, low detecting cost, high measuring precision and convenience for manipulation, and can be widely used for testing projects such as escape valve pressure, overload valve pressure, escape valve leakage, neutral valve leakage and inverting position leakage.

Description

Banked direction control valves COMPUTER DETECTION device
Technical field
The utility model belongs to the Automatic Measurement Technique field, particularly relates to a kind of banked direction control valves COMPUTER DETECTION device.
Background technology
There is internal leakage test difficult problem in present known banked direction control valves testing table.The test of internal leakage is that banked direction control valves detects one of difficult point.Because its numerical range is bigger, be generally 15ml/min-2500ml/min, so big scope is difficult to take into account two with a sensor.Turned round and look at high-endly, then the low side rill measures and not to come out; And survey big flow with small flowmeter, survey instrument and washed out.If adopt many sensors to be difficult to look for, and the price eighteenth of the twenty is expensive, and in the operation more emat sensor waste time and energy cost height, operation inconvenience.
Summary of the invention
The utility model provides a kind of banked direction control valves COMPUTER DETECTION device for solving the technical matters that exists in the known technology.
The purpose of this utility model is to replace many instrument with an instrument, reaches the purpose that can survey on a large scale.Simultaneously, cost is not high, and it is low to detect cost.
The principle of leakage rate tester is such: use a measurer, measure front-seat vacant liquid, after open liquid inlet electromagnetic valve, connect banked direction control valves leakage hole and measurer, make the leakage of banked direction control valves pour in measurer, heavy in the measurer have a fluid level transmitter to pop one's head in, and measures the rise Δ h of liquid level in the tool with it, and then the leakage rate in the unit interval can be calculated with following formula:
Leakage rate=S * Δ h/t
T is the used time, and timing is finished by VB software.
Unnecessary fluid is from the pipeline overflow of measurer top.
In the situation of not leaking, then close the solenoid valve of leakage line, open another valve, make the T mouth connect another oil circuit.
The liquid level rise Δ h that fluid level transmitter is measured is meant that different time detects the difference Δ h=h2-h1 of two liquid levels that obtain, and subtracting to balance out the systematic error of measurement mechanism.
Computer-aided test is to be core with the computing machine, at the expansion slot interpolative data collection plate of mainframe box.This plate is mainly finished the data acquisition of various measured parameter, and the input and output of switching value control.
The pressure of multiple directional control valve and internal leakage are converted to the normalized current signal by pressure unit and fluid level transmitter.Send into interface board and carry out signal condition, become the voltage signal of 1-5V, deliver to data acquisition board again and carry out the conversion of analog quantity, realize the collection of test figure to digital quantity (A/D).
Technical solution adopted in the utility model is:
Banked direction control valves COMPUTER DETECTION device, comprise computing machine and solenoid valve, be characterized in that fluid pressure line connects banked direction control valves, the banked direction control valves leakage hole connects liquid inlet electromagnetic valve by the road, liquid inlet electromagnetic valve connects measurer by the road, fluid level transmitter is equipped with in the measurer bottom, and solenoid valve, fluid level transmitter are connected with computing machine.
The utility model can also adopt following technical measures:
Described banked direction control valves COMPUTER DETECTION device is characterized in that: fluid pressure line is communicated with pressure unit, and pressure unit connects computing machine.
Described banked direction control valves COMPUTER DETECTION device is characterized in that: pressure unit, fluid level transmitter connect digital display meter.
Described banked direction control valves COMPUTER DETECTION device is characterized in that: measurer is a graduated cylinder, and the graduated cylinder bottom connects exhaust-valve.
Described banked direction control valves COMPUTER DETECTION device, it is characterized in that: the banked direction control valves leakage hole connects operation valve by the road, and operation valve connects liquid inlet electromagnetic valve by the road.
Described banked direction control valves COMPUTER DETECTION device, it is characterized in that: the banked direction control valves leakage hole connects by-pass valve by the road, flowmeter and throttling valve that by-pass valve connects and connects.
Described banked direction control valves COMPUTER DETECTION device, it is characterized in that: by-pass valve, throttling valve and flowmeter are connected with computing machine.
Described banked direction control valves COMPUTER DETECTION device, it is characterized in that: flow is counted turbo flow meter, and turbo flow meter connects digital display meter.
Advantage and the good effect that the utlity model has are:
The utility model replaces many instrument with an instrument, has the advantage that can survey on a large scale.Banked direction control valves COMPUTER DETECTION apparatus cost is low, the detection cost is low, and the measuring accuracy height is easy to operate.Can be widely used in project testings such as safety valve pressure, overload valve pressure, safety valve escape, the leakage of neutral valve position or commutation position leakage.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the computer aided detection control structure synoptic diagram of Fig. 1.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Embodiment 1
Consult Fig. 1 and Fig. 2.
Banked direction control valves COMPUTER DETECTION device, comprise computer-aided control and testing agency, the fluid pressure line of testing agency connects banked direction control valves to be measured, the banked direction control valves leakage hole connects liquid inlet electromagnetic valve 4 through operation valve 2 by pipeline, liquid inlet electromagnetic valve 4 connects graduated cylinder by the road, the graduated cylinder bottom sinks fluid level transmitter is arranged, and the graduated cylinder bottom connects exhaust-valve 5.Fluid pressure line is communicated with pressure unit.The banked direction control valves leakage hole connects by-pass valve 3 by the road, turbo flow meter and throttling valve 1 that by-pass valve 3 connects and connects.
Throttling valve 1, by-pass valve 2, liquid inlet electromagnetic valve 4, fluid level transmitter, pressure unit, turbo flow meter connect computing machine.Fluid level transmitter, pressure unit, turbo flow meter connect digital display meter.
The computer aided detection control hardware is formed: computing machine is equipped with the PSI8310 data collecting card, connects the photoelectric isolating circuit (TIL113) of input of analog quantity difference and filtering circuit, input digit amount, the relay buffer circuit of output digital quantity respectively.Pressure unit, flow transmitter, fluid level transmitter connect digital displaying meter respectively, connect input of analog quantity difference and filtering circuit.The photoelectric isolating circuit of input digit amount (TIL113) control knob switch.The control of relay buffer circuit pilot lamp, hummer and 3 solenoid valves of output digital quantity.
Leakage rate test: with the stainless-steel tube conduct " graduated cylinder " of a long 0.8m or 1m, internal diameter 25mm, the electromagnetism exhaust-valve 5 of below is opened, surplus liquid in the emptying graduated cylinder, close this valve after the emptying, after valve 2, liquid inlet electromagnetic valve 4 opened, connect banked direction control valves leakage hole and graduated cylinder, the leakage of banked direction control valves is poured in the graduated cylinder, sink to a fluid level transmitter (precision 0.5%) probe in the graduated cylinder, measure the rise Δ h of an interior liquid level with it, then the leakage rate in the unit interval can be calculated with following formula: leakage rate=S * Δ h/t.S is the steel tube inner hole sectional area in the formula, for the 25mm of aperture, and S=490.9mm 2, t is the used time, timing is finished (the VB timing can be accurate to 1 millisecond) by VB software.
For the situation of 15ml/min low discharge, it will make liquid level rising 30.6mm in one minute.And, shorten measurement time t for the situation of the big flow of 2500ml/min, will make liquid level rising 407.4mm in 5 seconds.Unnecessary fluid is from the pipeline overflow of " graduated cylinder " top.
In the situation of not leaking, then close the solenoid valve 2 of leakage line, open another by-pass valve 3, make the T mouth through by-pass valve 3, and connect turbo flow meter and throttling valve 1.
The pressure of multiple directional control valve and internal leakage are converted to the normalized current signal of 4-20mA by PMC800 type pressure unit (0.5 group of precision) and PMC801 type fluid level transmitter (0.5 group of precision).Send into interface board and carry out signal condition, become the voltage signal of 1-5V, deliver to data acquisition board again and carry out the conversion of analog quantity, realize the collection of test figure to digital quantity (A/D).
This device can be realized project testings such as safety valve pressure, overload valve pressure, safety valve escape, the leakage of neutral valve position or commutation position leakage.

Claims (8)

1. banked direction control valves COMPUTER DETECTION device, comprise computing machine and solenoid valve, it is characterized in that: fluid pressure line connects banked direction control valves, the banked direction control valves leakage hole connects liquid inlet electromagnetic valve by the road, liquid inlet electromagnetic valve connects measurer by the road, fluid level transmitter is equipped with in the measurer bottom, and solenoid valve, fluid level transmitter are connected with computing machine.
2. according to the described banked direction control valves COMPUTER DETECTION of claim 1 device, it is characterized in that: fluid pressure line is communicated with pressure unit, and pressure unit connects computing machine.
3. according to the described banked direction control valves COMPUTER DETECTION of claim 2 device, it is characterized in that: pressure unit, fluid level transmitter connect digital display meter.
4. according to the described banked direction control valves COMPUTER DETECTION of claim 1 device, it is characterized in that: measurer is a graduated cylinder, and the graduated cylinder bottom connects exhaust-valve.
5. according to the described banked direction control valves COMPUTER DETECTION of claim 1 device, it is characterized in that: the banked direction control valves leakage hole connects operation valve by the road, and operation valve connects liquid inlet electromagnetic valve by the road.
6. according to the described banked direction control valves COMPUTER DETECTION of claim 1 device, it is characterized in that: the banked direction control valves leakage hole connects by-pass valve by the road, flowmeter and throttling valve that by-pass valve connects and connects.
7. according to the described banked direction control valves COMPUTER DETECTION of claim 6 device, it is characterized in that: by-pass valve, throttling valve and flowmeter are connected with computing machine.
8. according to the described banked direction control valves COMPUTER DETECTION of claim 6 device, it is characterized in that: flow is counted turbo flow meter, and turbo flow meter connects digital display meter.
CN 200620025799 2006-04-18 2006-04-18 Computer detector for multi-path valve Expired - Fee Related CN2886538Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620025799 CN2886538Y (en) 2006-04-18 2006-04-18 Computer detector for multi-path valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620025799 CN2886538Y (en) 2006-04-18 2006-04-18 Computer detector for multi-path valve

Publications (1)

Publication Number Publication Date
CN2886538Y true CN2886538Y (en) 2007-04-04

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Application Number Title Priority Date Filing Date
CN 200620025799 Expired - Fee Related CN2886538Y (en) 2006-04-18 2006-04-18 Computer detector for multi-path valve

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CN (1) CN2886538Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102735439A (en) * 2012-07-05 2012-10-17 徐工集团工程机械股份有限公司 Device for testing performance of hydraulic multiway valve
CN103196660A (en) * 2012-01-10 2013-07-10 浙江大学 Multistation computer test system facing multitandem valves
CN103217277A (en) * 2012-12-06 2013-07-24 中国人民解放军海军航空工程学院青岛校区 Engine laminate restrictor test board
CN103308257A (en) * 2013-06-26 2013-09-18 贵州兴化化工股份有限公司 Leakage detecting method and leakage detecting device for hydraulic valves
CN103969009A (en) * 2014-04-17 2014-08-06 广州特种承压设备检测研究院 Testing device of multi-way valve
CN106404318A (en) * 2016-08-31 2017-02-15 南京理工大学 Indoor distribution transformer oil leakage supervision system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196660A (en) * 2012-01-10 2013-07-10 浙江大学 Multistation computer test system facing multitandem valves
CN102735439A (en) * 2012-07-05 2012-10-17 徐工集团工程机械股份有限公司 Device for testing performance of hydraulic multiway valve
CN102735439B (en) * 2012-07-05 2014-11-19 徐工集团工程机械股份有限公司 Device for testing performance of hydraulic multiway valve
CN103217277A (en) * 2012-12-06 2013-07-24 中国人民解放军海军航空工程学院青岛校区 Engine laminate restrictor test board
CN103217277B (en) * 2012-12-06 2015-07-22 中国人民解放军海军航空工程学院青岛校区 Engine laminate restrictor test board
CN103308257A (en) * 2013-06-26 2013-09-18 贵州兴化化工股份有限公司 Leakage detecting method and leakage detecting device for hydraulic valves
CN103969009A (en) * 2014-04-17 2014-08-06 广州特种承压设备检测研究院 Testing device of multi-way valve
CN106404318A (en) * 2016-08-31 2017-02-15 南京理工大学 Indoor distribution transformer oil leakage supervision system

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070404

Termination date: 20100418