CN206695983U - A kind of air valve performance testing device - Google Patents
A kind of air valve performance testing device Download PDFInfo
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- CN206695983U CN206695983U CN201720381071.XU CN201720381071U CN206695983U CN 206695983 U CN206695983 U CN 206695983U CN 201720381071 U CN201720381071 U CN 201720381071U CN 206695983 U CN206695983 U CN 206695983U
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Abstract
The utility model belongs to testing valve performance technical field, more particularly to a kind of air valve performance testing device, including air blower, tested valve housing one, flowmeter, air blower connects to form gas flow loop with flowmeter pipeline, tested valve housing one is located between air blower and flowmeter, and air blower inlet scoop sets three-way pipe；It is tested that exhaust outlet is set between valve housing one and air blower, reversal valve one is set between exhaust outlet and tested valve housing one；Tested valve housing two is provided between three-way pipe and flowmeter, it is tested that reversal valve two is set between valve housing two and air blower；Tested valve housing one, tested reversal valve three and reversal valve four are respectively equipped between valve housing two and airflow line；Pressure transmitter one and pressure transmitter two are respectively equipped with tested valve housing one, tested valve housing two.The present apparatus is tested using stable state source of the gas, overturns conventional transient state source of the gas test theory, and is inhaled in set of device, venting test, is reduced device cost of manufacture, can be provided accurate assessment result.
Description
Technical field
Testing valve performance technical field is the utility model is related to, in particular it relates to which a kind of use stable state source of the gas to air
Valve carries out the test device of pumping property test and exhaust performance test.
Background technology
Air valve is that and can is quick when one kind realizes Quick air-discharge in pipeline blank pipe water-filling and negative pressure is produced in pipeline
The valving of air inlet, it is provided simultaneously with large and small port, the micro sky that can assemble under operating pressure in discharge line
Gas, be mainly used in alleviating or eliminate long distance water transfer project because negative pressure and caused by water hammer due to cavities collapsing, it has also become over long distances it is defeated
Visual plant in Hydraulic Projects.
Installation air valve in the pressure water tank high point of pumping plant and each aqueduct, for aqueduct water-filling at initial stage,
The air in aqueduct is discharged outward during water-filling after pipeline periodic inspection, avoids pressure oscillation；Water is produced in aqueduct
When negative pressure occurs in hammer, air valve is opened, and is made the outer air of pipeline enter pipeline, in order to avoid producing larger negative pressure in pipeline, is played
Protective effect；When pipe-line system is run, when being released air soluble in water because of pressure or temperature change in pipeline
When, air valve discharges it in time, prevents from forming air bag in pipeline and influenceing the operation of pipe-line system.
Air valve is needed by multiple tracks inspection process when dispatching from the factory to ensure its qualification,《People's Republic of China (PRC) cities and towns
Construction industry standard CJ/T 217-2005》And《Feedwater piping Combined type air inlet CJ/T 217-2013》To air
The exfactory inspection of valve formulated respective standard, wherein the Special attention will be given to pumping property and exhaust performance of air valve, prior art
In, the suction and discharge performance test of air valve is carried out using transient state air-flow,
Flow regime of the gas in valve can be divided into stable state and the class of transient state two, and steady-flow is the base of valve air current flow
This state, Transient Flow be then steady-state gas flow flowing destroyed caused by, the opening and closing reason of such as valve and transition occurs.
However, carry out the performance test of transient state source of the gas to air valve, be when being tested using pure water, toward pipeline in it is prominent
One air-flow is so filled with, to simulate actual condition, the pressure size of this strand of air-flow is variable, it is impossible to maintains one always
Pressure value, therefore the various physical parameters obtained under the transient state gas source condition are instantaneous, and cannot get the whole work of air valve
Working parameters during work, it can not obtain weighing the index of air valve actual performance, during valves test, and due to valve
Structure and aperture are different, will cause the uneven of valve upstream and downstream pipeline flow field, valve upstream and downstream must have sufficiently long pipe
Road ensures that air-flow gradually recovers stable in pipeline, and arrangement pressure-measuring-point could obtain accurately at pipeline interior air-flow settling position
Test result.
In addition, air-breathing and the exhaust performance test of prior art Air Valve are carried out using two complete equipments, can not realize
The function that realization is more accurate on a set of equipment, air-breathing and exhaust performance are test integrated, therefore the utility model is according to air
The engineering application demand of valve, devise a kind of suction and discharge performance testing device tested using stable state source of the gas air valve.
The content of the invention
The defects of technical problem that the utility model solves is to be directed to prior art, there is provided a kind of reliability is high, structure
Simply, the easily operated and whole air valve performance testing device using the progress performance test of stable state source of the gas.
The technical solution of the utility model is as follows：
A kind of air valve performance testing device, including air blower, tested valve housing one, flowmeter, the air blower and
Flowmeter connects to form gas flow loop by pipeline, the tested valve housing one be arranged on blower outlet and flowmeter it
Between, the air blower inlet scoop is connected with three-way pipe；There is exhaust outlet between the tested valve housing one and air blower, it is described
Reversal valve one is set between exhaust outlet and tested valve housing one.
Also include the tested valve housing two being arranged between the three-way pipe and flowmeter, the tested valve housing two
There is reversal valve two between air blower；The tested valve housing one, it is tested between valve housing two and gas flow loop pipeline
It is respectively equipped with reversal valve three and reversal valve four；Pressure change is respectively equipped with the tested valve housing one, tested valve housing two
Device one and pressure transmitter two is sent to be used to measure tested valve inlet pressure.
The three-way pipe has the outlet being in communication with the outside, and outlet is provided with can opening and closing structure.
Having on the exhaust outlet can opening and closing structure.
Described device sets two tested valve housings, installation site is chosen according to air valve performance test demand, when need
When testing the experiment of air valve pumping property, air valve is arranged on tested valve housing one, empty when that need to do exhaust performance experiment
Air valve is arranged on tested valve housing two；After air valve is installed in place, by related directional being opened and closed operation, make institute
State device and form a suction line or gas exhaust piping, by adjusting the flow of air blower, it is different to obtain tested valve porch
Pressure value, the flow value of flowmeter is read under the conditions of different pressures value can carry out related suction and discharge performance point to air valve
Analysis.
Further, the tested valve housing one includes flange reducer pipe one and flange straight tube one, the tested valve peace
Dress seat two includes flange reducer pipe two and flange straight tube two, and described flange straight tube one and flange straight tube two one end is tested for installing
Valve, the flange reducer pipe one, the small end of flange reducer pipe two are connected with flange straight tube one and flange straight tube two respectively, the method
Blue reducer pipe one and flange reducer pipe two connect with airflow line.
On the one hand the setting of flange reducer pipe one and flange reducer pipe two is and the airflow line because tested valve bore is smaller
Caliber it is big；On the other hand when doing exhaust performance test, the air-flow of tested valve is flowed to via the reducing of flange reducer pipe two, is reached
The pressure of tested valve inlet will be in current stabilization state.
Further, the taper of the flange reducer pipe one and flange reducer pipe two is less than or equal to 15 °, in the angle
In the range of the test device can control cavitation to greatest extent, it is preferable that the taper be 15 °.
Specifically, pressure tappings, the He of pressure transmitter one are provided with the flange straight tube one and flange straight tube two
Pressure transmitter two is separately positioned on flange straight tube one and flange straight tube two by pressure tappings, around the position of pressure tappings also
It is welded with the boss of locking pressure transmitter one and pressure transmitter two, it is preferable that to ensure that pressure transmitter one and pressure become
The stable connection of device two and pressure tappings is sent, the pressure transmitter one and pressure transmitter two are respectively perpendicular to flange straight tube one
Set with flange straight tube two.
Specifically, the setting of the three-way pipe allows the air blower in air-breathing test and venting test to air-flow
Suction direction carry out any switching laws, during sniff test, on three-way pipe can opening and closing structure close, air blower is from airflow line
Air-breathing, during exhaust system test, on three-way pipe can opening and closing structure open, air blower is from extraneous air-breathing.
Further, the air blower is Roots blower, and Roots blower has stable in very wide pressure limit
Big pumping speed, internal gas can be discharged rapidly；It is rational in infrastructure and Design of Roots Blower is advanced, between rotor and rotor and the pump housing
Between have gap, be not in contact with each other, without lubrication, friction loss is small, relatively low power can be used to obtain larger pumping speed, had significantly
Energy-saving effect.
Further, the air blower is driven by frequency converter, and frequency converter is placed in frequency converter control cabinet.
Further, the reversal valve one, reversal valve two, reversal valve three and reversal valve four use worm gear flange form butterfly valve.
Further, it is described can opening and closing structure can be blind flange or reversal valve, it is described to be opened and closed knot preferentially from reversal valve
Structure is worm gear flange form butterfly valve, can be achieved to carry out three-way pipe outlet or exhaust outlet efficiently, accurately opening and closing operations.
Further, to aid in the Flow-rate adjustment of the air blower, the pressure of tested valve porch is made preferably to be controlled
System, adjusting means is provided between the reversal valve one and tested valve housing one.
Specifically, the adjusting means is the throttling branch road one on airflow line, the throttling branch road one and the external world
Connection, the throttling branch road one are provided with restricting element one, the air-flow stream for entering flowmeter by adjusting restricting element one to make
Amount change.
Further, throttling branch road two is additionally provided with the throttling branch road one, there is throttling on the throttling branch road two
Element two, the throttling branch road two connect the pipeline at the both ends of restricting element one.
Specifically, the throttling branch road one is arranged to coarse adjustment throttling branch road, the throttling branch road two is fine setting throttling branch
Road, accurately to be controlled air-flow.
More specifically, coarse adjustment acts on the restricting element together, the restricting element two plays fine setting, it is preferable that institute
State restricting element one and use ball valve, the restricting element two uses needle-valve.
Further, judge to make the suction and discharge performance of air valve obtain accurate analysis, in described device to air valve
Need to calibrate flowmeter before carrying out performance test, to reach the alignment purpose of flowmeter, set in the flowmeter both sides
Differential pressure transmitter, temperature sensor is provided between the tested valve housing one and flowmeter.
Specifically, two differential pressure transmitters are used for the voltage drop value and flowmeter and tested valve for measuring flowmeter both sides
Between pressure difference；The temperature sensor is used for the temperature value for monitoring the air-flow for flowing into flowmeter.
More specifically, according to obtain voltage drop value, pressure difference, temperature value combination tested valve porch pressure value, substitute into
Flowmeter flow standard calculation formula obtains the theoretical delivery value of flow meter in this condition, by the flow value of record and calculates
The theoretical delivery value gone out is compared, and when deviation is no more than 5%, flowmeter reaches align mode, can proceed by air valve
Performance test.
Further, it is additionally provided with honeycomb screen between the tested valve housing one and flowmeter, the honeycomb screen is used for pair
The air-flow for flowing to flowmeter carries out current stabilization, during experiment, it is desirable to which air-flow balances as far as possible, to reduce in the test device
Pressure in the vibration and pipeline of parts, it is especially desirable to which the gas shock for avoiding enter into flowmeter is larger.
Specifically, the honeycomb screen by more minor diameters steel pipe it is evenly distributed be welded in large diameter steel pipe, it is described big
Diameter steel pipe both ends size is adapted to airflow line.
Further, relief valve is set between the air blower and exhaust outlet, for ensureing the safety fortune of the air blower
OK, by setting the rated boost pressure value of air blower, when pressure exceedes the rated boost pressure value in airflow line, air blower stops
Machine, the flap of relief valve fully open timely pressure release.
Further, the junction of the air blower and airflow line is connected using elastomeric joint, at blower outlet
Pressure is larger, can play the effects such as high pressure, elastic good, noise reduction damping using elastomeric joint, and elastomeric joint is easy for installation, makes
With flexible, it is easy to change and repair.
Further, to avoid at blower outlet, because flow is big etc., reason causes to produce buzzing etc. in airflow line
Noise, silencing apparatus can be set on the airflow line close to blower outlet, specifically, the covering model of the silencing apparatus
Enclose and extend to relief valve junction.
Specifically, the silencing apparatus is the deadener for being coated on the airflow line outer surface, the deadener
It can be sound-absorbing sponge, foamed plastics, glass fibre cotton or industrial felt etc., preferably from sound-absorbing sponge, can have sound-absorbing, protect
The effect such as warm, heat-insulated.
Further, common orifice flowmeter can be used in described device, preferable to use integrated hole flowmeter, and one
Body formula orifice flowmeter has simple in construction, easy to maintenance, stable performance, using it is reliable the advantages that, can be air valve suction, row
Gas performance provides more accurate parameter information.
Further, described device also include respectively with flowmeter, temperature sensor, pressure transmitter one, pressure inverting
The data collection and analysis module of the electrical connection such as device two and differential pressure transmitter, the data collection and analysis module are participated in the overall process air valve
Performance test process, the information of collection is analyzed and processed in time, for operator provide operation according to and finally provide smart
True air valve is inhaled, exhaust performance analysis report.
Further, the airflow line selects straight tube or bend pipe to be formed by connecting according to the actual arrangement of described device.
Specifically, during the pipe diameter difference for being connected to any two interconnections of airflow line, connected using reducer pipe
Connect.
Specifically, air valve is typically arranged as vertical direction, therefore tested valve is installed by air valve when doing performance test
Pipeline in seat one and/or tested valve housing two can select bend pipe as needed.
When the test device is used to do pumping property test, device interior air-flow flow direction is：Tested valve → tested valve installation
Seat one → honeycomb screen → flowmeter → three-way pipe → air blower → relief valve → exhaust outlet.
When the test device is used to do exhaust performance test, device interior air-flow flow direction is：Three-way pipe → air blower → is let out
Pressure valve → honeycomb screen → two → tested valve of tested valve housing.
Tested when being tested using the air valve performance testing device air valve performance using stable state source of the gas,
It is as follows including pumping property test and exhaust performance test, operating procedure：
A. pumping property is tested
AS1. flowmeter is calibrated：Check whether each device feature and each measuring instrumentss are installed in place, by tested valve
Be attached on tested valve housing two, in order open three-way pipe on can opening and closing structure, reversal valve one, reversal valve four, close
Reversal valve three, reversal valve two and exhaust ports can opening and closing structure, restricting element one and restricting element two are placed in adjustment state,
Air blower is opened, restricting element one and restricting element two is adjusted, temperature sensor is measured by data collection and analysis module
Voltage drop value, the pressure of tested valve porch before and after the flowmeter that flow value that temperature value, flow measurement obtain, differential pressure transmitter measure
Pressure difference between value and flowmeter and tested valve carries out that the theoretical delivery value of orifice flowmeter in this condition is calculated,
And the actual flow value of flowmeter is compared with theoretical delivery value, when deviation is no more than 5%, flow is calculated as align mode,
Air-breathing test can be proceeded by, otherwise needs debugging traffic meter；
AS2. air valve is tested：Reversal valve four is closed, tested valve is attached on tested valve housing one, by suitable
Sequence open exhaust ports can opening and closing structure, close reversal valve one, reversal valve four and restricting element one and restricting element two, open
Open reversal valve three and reversal valve two, close on three-way pipe can opening and closing structure；Frequency converter is adjusted, incrementally increases air blower flow,
The pressure value that pressure transmitter one at observation tested valve measures, while pay attention to the flow value that flow measurement obtains, when flow value increases
It is big to tending to be steady, and the pressure value big ups and downs of pressure transmitter one or suddenly decline, then tested valve reaches maximal inspiratory capacity, data
Collection analysis module will be recorded and analyzed to corresponding pressure value-flow value；
AS3. make the pressure change of tested valve porch in aS2 test process, obtain the pressure under at least 3 groups of different pressures values
Force value-flow value, and recorded and analyzed.
AS4. test terminates, and closes air blower；
B. exhaust performance is tested
BS1. flowmeter is calibrated：Check whether each device feature and each measuring instrumentss are installed in place, by tested valve
Be attached on tested valve housing two, in order open three-way pipe on can opening and closing structure, reversal valve one, reversal valve four, close
Reversal valve three, reversal valve two and exhaust ports can opening and closing structure, restricting element one and restricting element two are placed in adjustment state,
Air blower is opened, restricting element one and restricting element two is adjusted, temperature sensor is measured by data collection and analysis module
Voltage drop value, the pressure of tested valve porch before and after the flowmeter that flow value that temperature value, flow measurement obtain, differential pressure transmitter measure
Pressure difference between value and flowmeter and tested valve carries out that the theoretical delivery value of orifice flowmeter in this condition is calculated,
And the actual flow value of flowmeter is compared with theoretical delivery value, when deviation is no more than 5%, flow is calculated as align mode,
Air-breathing test can be proceeded by, otherwise needs debugging traffic meter；
BS2. air valve is tested：Frequency converter is adjusted, adjusts air blower flow or by adjusting the He of restricting element one
Restricting element two adjusts air flow rate, the pressure value changes of observation tested valve porch, while pays attention to the stream that flow measurement obtains
Value, when the pressure value big ups and downs of tested valve porch, and flow value is tended to be steady, or tested valve orifice plug is blown afloat
When, then tested valve reaches maximum capacity, and data collection and analysis module will be recorded and divided to corresponding pressure value-flow value
Analysis；
BS3. the micro- row's process record of air valve：After up to maximum capacity, tested valve proceeds by throttling exhaust, now flows
Value accordingly reduces, but pressure value is also slowly increasing, data collection and analysis module will to micro- row at the end of corresponding pressure
Value-flow value is recorded and analyzed；
BS4. make the pressure change of tested valve porch in bS2 test process, obtain the pressure under at least 3 groups of different pressures values
Force value-flow value, and recorded and analyzed, while pressure value-flow value during corresponding record bS3 and divided
Analysis.
BS5. test terminates, and closes air blower.
Compared with prior art, the utility model has the advantages that：
Air valve performance testing device described in the utility model, prior art is broken on air valve suction, venting quality
The technology set that transient state source of the gas is tested can be used in test device, using the gentle and small impact property of stable state source of the gas, if
Count out a kind of air valve suction and discharge performance testing device tested using air blower output stable state source of the gas, the test of stable state source of the gas
Have the advantages that bleed pressure it is constant, to test equipment without impact, provide stable source of the gas using air blower in the utility model, can
Ensure sustained pressure in test process, realize that the stability of whole test process and the accuracy of test result etc. are excellent
Point.
Test device multifunction described in the utility model, pumping property test can be carried out to air valve in set of device
Test with exhaust performance, without repeatedly being removed and installed to parts such as flowmeters, overcome inspiratory in the prior art
Can test and exhaust performance test the shortcomings that being two sets of different test devices, integrating from two covering devices to set of device, one
Aspect has saved installation cost, such as air blower and flowmeter only need one can reach requirement, has on the other hand saved whole
The floor space of individual device, furthermore its rational arrangement of parts facilitates operator to carry out associative operation.
Test device described in the utility model take full advantage of stable state source of the gas test the advantages of, so as to obtain reliably, essence
True ground test result, the pumping property of tested air valve and the indices of exhaust performance can be reflected objectively, exactly.
Brief description of the drawings
Fig. 1 is the front view of the air valve performance testing device；
Fig. 2 is the top view of the air valve performance testing device.
Embodiment
The utility model is further described with reference to embodiment.Wherein, being given for example only property of accompanying drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, it is impossible to is interpreted as the limitation to this patent；In order to which this reality is better described
With new embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；To ability
For field technique personnel, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Embodiment 1
As shown in Fig. 1~2, there is provided a kind of air valve performance testing device, including air blower 1, tested valve housing 1,
Flowmeter 4, air blower 1 connect to form gas flow loop with flowmeter 4 by pipeline, and tested valve housing 1 is arranged on air blower 1
Between air outlet and flowmeter 4, the inlet scoop of air blower 1 is connected with three-way pipe 5；It is tested to have between valve housing 1 and air blower 1
There is exhaust outlet 6, reversal valve 1 is set between exhaust outlet 6 and tested valve housing 1.
Also include the tested valve housing 23 being arranged between three-way pipe 5 and flowmeter 4, be tested valve housing 23 and drum
There is reversal valve 2 72 between blower fan 1；Tested valve housing 1, it is tested between valve housing 23 and gas flow loop pipeline respectively
Provided with reversal valve 3 73 and reversal valve 4 74；Pressure inverting is respectively equipped with tested valve housing 1, tested valve housing 22
Device 1 and pressure transmitter 2 31 are used to measure the inlet pressure of tested valve 100.
Three-way pipe 5 has the outlet being in communication with the outside, and outlet is provided with can opening and closing structure 51.
Having on exhaust outlet 6 can opening and closing structure 61.
This test device sets two tested valve housings, and installation site is chosen according to air valve performance test demand, when
When need to test the experiment of air valve pumping property, tested valve 100 is arranged on tested valve housing 1, when need to do exhaust performance examination
When testing, tested valve 100 is arranged on tested valve housing 23；After tested valve 100 is installed in place, by entering to related directional
Row opening and closing operations, test device is formed a suction line or gas exhaust piping, by adjusting the flow of air blower 1, obtain by
The different pressure value in the porch of side valve 100, the flow value that flowmeter 4 is read under the conditions of different pressures value can enter to air valve
The related suction and discharge performance evaluation of row.
Air valve performance testing device described in the utility model, prior art is broken on air valve suction, venting quality
The technology set that transient state source of the gas is tested can be used in test device, utilize air blower to export the gently stable state gas with small impact
Source to air valve carry out suction and discharge performance test, stable state source of the gas test have bleed pressure it is constant, to test equipment without impact etc.
Advantage, the stable source of the gas that air blower provides, it is ensured that sustained pressure in test process, realize the steady of whole test process
The advantages that qualitative and test result accuracy.
Tested valve housing 1 includes flange reducer pipe 1 and flange straight tube 1, and tested valve housing 23 includes method
Blue reducer pipe 2 32 and flange straight tube 2 33, flange straight tube 1 and the one end of flange straight tube 2 33 are used to install tested valve 100, method
Blue reducer pipe 1, the small end of flange reducer pipe 2 32 are connected with flange straight tube 1 and flange straight tube 2 33 respectively, and flange becomes
Footpath pipe 1 and flange reducer pipe 2 32 connect with airflow line.
On the one hand the setting of flange reducer pipe 1 and flange reducer pipe 2 32 is smaller because of the bore of tested valve 100, and
The caliber of airflow line is big；On the other hand when doing exhaust performance test, the air-flow of tested valve 100 is flowed to via flange reducer pipe
2 32 reducings, current stabilization state will be in by reaching the pressure of tested valve inlet.
The taper of flange reducer pipe 1 and flange reducer pipe 2 32 is set smaller than or equal to 15 °, in the angular range
Interior test device can control cavitation to greatest extent, it is preferable that the taper is 15 °.
Pressure tappings are provided with flange straight tube 1 and flange straight tube 2 33（It is not shown）, pressure transmitter 1 and pressure
Power transmitter 2 31 is vertically disposed on flange straight tube 1 and flange straight tube 2 33 by pressure tappings, in the position of pressure tappings
The boss of locking pressure transmitter one and pressure transmitter two is also welded with around putting（It is not shown）.
Specifically, the setting of three-way pipe 5 allows air blower 1 in air-breathing test and the suction in venting test to air-flow
Direction carries out any switching laws, during sniff test, on three-way pipe can opening and closing structure 51 close, air blower 1 is inhaled from airflow line
Gas, during exhaust system test, on three-way pipe can opening and closing structure 51 open, air blower 1 is from extraneous air-breathing.
Air blower 1 is Roots blower in the present embodiment, and Roots blower has stabilization in very wide pressure limit
Big pumping speed, internal gas can be discharged rapidly；It is rational in infrastructure and Design of Roots Blower is advanced, between rotor and between rotor and the pump housing
There is gap, be not in contact with each other, without lubrication, friction loss is small, and larger pumping speed can be obtained with relatively low power, there is significant section
Can effect.
RRF-290 type Roots blowers are specifically selected, Roots blower is driven by frequency converter, and frequency converter is placed in change
In frequency device switch board.
Reversal valve 1, reversal valve 2 72, reversal valve 3 73 and reversal valve 4 74 use worm gear flange form butterfly valve.
The present embodiment is tested for the air valve that bore is DN50-DN300, the inlet scoop of air blower 1 and air outlet
Bore is DN300, therefore the pipeline being connected with air blower 1 is DN300 caliber pipes, and remaining pipes use DN350 bore pipes
Road, the i.e. bore of three-way pipe 5 and be DN300 with the pipe diameter of blower outlet connection end.
On three-way pipe 5 can opening and closing structure 51 be worm gear flange form butterfly valve, can be achieved to three-way pipe outlet or exhaust outlet enter
Row efficiently, accurately opening and closing operations, specifically, from the worm gear flange form butterfly valve of 300D341X-10 types.
Set according to the bore of airflow line, reversal valve 71, reversal valve 2 72, reversal valve 3 73 and reversal valve 4 74 select
With the worm gear flange form butterfly valve of 350D341X-10 types.
Exhaust outlet 6 can opening and closing structure 61 using 350D341X-10 types worm gear flange form butterfly valve.
For the Flow-rate adjustment of auxiliary blower 1, the pressure of the porch of tested valve 100 is better controled over, is being commutated
Adjusting means 8 is provided between valve 1 and tested valve housing 1.
Specifically, adjusting means 8 is the throttling branch road one on airflow line, and throttling branch road one, which has, to be in communication with the outside
End, throttling branch road one be provided with restricting element 1, by adjust restricting element 1 can make enter flowmeter 4 air-flow
Changes in flow rate.
Meanwhile throttling branch road two is additionally provided with the branch road one that throttles, there is restricting element 2 82, throttling branch on the branch road two that throttles
Road two connects the pipeline at the both ends of restricting element 1.
Throttling branch road one is arranged to coarse adjustment throttling branch road in the present embodiment, is fine setting throttling branch road by throttling branch road two,
Accurately to be controlled air-flow, now restricting element 1 plays coarse adjustment, and restricting element 2 82 plays fine setting, preferably
Ground, restricting element 1 use ball valve, and restricting element 2 82 uses needle-valve.
Specifically, restricting element 1 is 150Q341X-10 type ball valves, and restricting element 2 82 is 50J61W-63 type type pins
Valve.
Judge to make the suction and discharge performance of tested valve 100 obtain accurate analysis, using this test device to air valve
Need to calibrate flowmeter 4 before carrying out performance test, to reach the alignment purpose of flowmeter, it is poor to set in the both sides of flowmeter 4
Pressure transmitter 41, temperature sensor 9 is provided between tested valve housing 1 and flowmeter 4.
Specifically, two differential pressure transmitters 41 are used for the voltage drop value hn for measuring the both sides of flowmeter 4 and flowmeter 4 with being tested
Pressure difference h between valve 100；Temperature sensor 9 is used for the temperature value T for monitoring the air-flow for flowing into flowmeter 4.
According to obtain voltage drop value hn, pressure difference h, the porch of temperature value T combinations tested valve 100 pressure value hv, substitute into
Flowmeter flow standard calculation formula obtains the theoretical delivery value Q of flow meter in this conditionl, by the flow value Q of record and meter
The theoretical delivery value Q drawnlIt is compared, when deviation is no more than 5%, flowmeter reaches align mode, can proceed by
Air valve performance test.
Specifically, differential pressure transmitter uses CECC-630-G22M1B3D1iJ models, TEMP type in the present embodiment
Number select OPTITEMP TRA-C30 types.
This test device also include respectively with flowmeter 4, temperature sensor 9, pressure transmitter 1, pressure transmitter two
31 and the data collection and analysis module of the grade electrical connection of differential pressure transmitter 41（It is not shown）, data collection and analysis module participates in the overall process sky
The performance test process of air valve, the information of collection is analyzed and processed in time, provide operation foundation for operator and finally carry
Inhaled for accurate air valve, exhaust performance analysis report.
Data collection and analysis module is specially data collection and analysis instrument, preferably YSV8016 network-types data collection and analysis instrument,
It has 24 A/D precision, optional 16 road synchronous acquisition, sample frequency 60KHz/CH.Ethernet interface can lead to computer
Letter, transmission data, and the functions such as the Control ＆ data acquisition to equipment, signal analysis are realized by software kit.Suitable for shaking
The various physical quantity signal collections such as moving noise, impact, flow, pressure, voltage, electric current.
It is tested to be additionally provided between valve housing 1 and flowmeter 4 for carrying out the whole of current stabilization to the air-flow for flowing to flowmeter
Grid 110 are flowed, because during experiment, it is desirable to which air-flow balances as far as possible, to reduce the vibration of parts and pipe in test device
Pressure in road, it is especially desirable to which the gas shock for avoiding enter into flowmeter is larger.
Honeycomb screen 110 by more minor diameters steel pipe it is evenly distributed be welded in large diameter steel pipe, large diameter steel pipe both ends
Size is adapted to airflow line.
Set relief valve 120 to be used for the safe operation for ensureing air blower 1 between air blower 1 and exhaust outlet 6, roused by setting
The rated boost pressure value of blower fan 1, when pressure exceedes the rated boost pressure value in airflow line, air blower is shut down, relief valve 120
Flap fully opens timely pressure release.
The junction of the air outlet of air blower 1 and airflow line is connected using elastomeric joint 130, pressure at blower outlet
It is larger, the effects such as high pressure, elastic good, noise reduction damping can be played using elastomeric joint, and elastomeric joint is easy for installation, uses spirit
It is living, it is easy to change and repair.
Because flow is big etc., reason causes to produce the noises such as buzzing in airflow line to avoid at the air outlet of air blower 1, can
Silencing apparatus 140 is set on the airflow line close to blower outlet, and specifically, the coverage of silencing apparatus extends to
The junction of relief valve 120.
Silencing apparatus is the sound-absorbing sponge for being coated on airflow line outer surface in the present embodiment, its have sound-absorbing, insulation, every
Heat etc. acts on.
The flowmeter 4 of this test device uses integrated hole flowmeter, integrated hole flowmeter have it is simple in construction,
It is easy to maintenance, stable performance, using it is reliable the advantages that, more accurate parameter letter can be provided for the suction of air valve, exhaust performance
Breath.
Cologne, Germany flowmeter is specifically selected, concrete model is KDP-O-35-0G0FB-C2D3G2 integral type orifice plate
Flowmeter.
Airflow line selects straight tube or bend pipe to be formed by connecting according to the actual arrangement of test device.
During the pipe diameter difference for being connected to any two interconnections of airflow line, connected using reducer pipe.
Specifically, air valve is typically arranged as vertical direction, therefore tested valve is installed by air valve when doing performance test
Pipeline in seat 1 and/or tested valve housing 23 can select bend pipe as needed.
This test device multifunction, pumping property test can be carried out to air valve in set of device and exhaust performance is surveyed
Examination, without repeatedly being removed and installed to parts such as flowmeters, overcome pumping property test and exhaust in the prior art
The shortcomings that performance test is two sets of different test devices, it is integrated from two covering devices to set of device, on the one hand save dress
It is set to this, such as air blower and flowmeter only need one can reach requirement, have on the other hand saved the occupation of land of whole device
Area, furthermore its rational arrangement of parts facilitates operator to carry out associative operation.
When this test device is used to do pumping property test, device interior air-flow flow direction is：100 → tested valve of tested valve is installed
120 → exhaust outlet of seat one 2 → honeycomb screen, 110 → flowmeter, 4 → three-way pipe, 5 → air blower, 1 → relief valve 6.
When this test device is used to do exhaust performance test, device interior air-flow flow direction is：5 → air blower of three-way pipe 1 → let out
120 → honeycomb screen of pressure valve 110 → 23 → tested valve of tested valve housing 100.
It is to be tested using stable state source of the gas that the test device, which carries out performance test to air valve, including pumping property is surveyed
Examination and exhaust performance test, during test, the test voltage of air blower 1 is 380V, flow 95.7m3/min, rotating speed 730r/
Min, frequency variation signal 50HZ, operating procedure are as follows：
A. pumping property is tested
AS1. flowmeter 4 is calibrated：Check whether each device feature and each measuring instrumentss are installed in place, by tested valve
100 are attached on the flange straight tube 2 33 of tested valve housing two, in order open three-way pipe on can opening and closing structure 51, commutation
Valve 1, reversal valve 4 74, close reversal valve 3 73, reversal valve 2 72 and exhaust ports can opening and closing structure 61, by throttling member
Part 1 and restricting element 2 82 are placed in adjustment state, open air blower 1, adjust restricting element 1 and restricting element 2 82,
Flow value Q, the differential pressure transporting that temperature value T, the flowmeter 4 measured by data collection and analysis module to temperature sensor 9 measures
Voltage drop value hn, the pressure value hv of the porch of tested valve 100 and flowmeter 4 and tested valve 100 before and after the flowmeter 4 that device 41 measures
Between pressure difference h carry out that the theoretical delivery value Q of orifice flowmeter 4 in this condition is calculatedl, and by the reality of flowmeter
Flow value Q and theoretical delivery value QlIt is compared, when deviation is no more than 5%, flow is calculated as align mode, can proceed by suction
Gas is tested, and otherwise needs debugging traffic meter 4；
AS2. air valve is tested：Reversal valve 4 74 is closed, tested valve 100 is attached to tested valve housing one
On flange straight tube 1, in order open exhaust ports can opening and closing structure 61, close reversal valve 1, reversal valve 4 74 and
Restricting element 1 and restricting element 2 82, reversal valve 3 73 and reversal valve 2 72 are opened, close on three-way pipe and be opened and closed knot
Structure 51；Frequency converter is adjusted, incrementally increases air blower flow, observes the pressure that the pressure transmitter 1 at tested valve 100 measures
Value hv, while pay attention to the flow value Q that flowmeter 4 measures, it is respectively -5 to record pressure value by data collection and analysis module
Flow value Q under the numerical value such as kPa, -10 kPa, -15 kPa, -20 kPa, tended to be steady when flow value Q is increased to, and pressure becomes
Send the pressure value hv big ups and downs of device 1 or decline suddenly, then tested valve 100 reaches maximal inspiratory capacity, and data collection and analysis module will
Corresponding pressure value-flow value is recorded and analyzed,；
AS3. test terminates, and closes air blower；
B. exhaust performance is tested
BS1. flowmeter 4 is calibrated：Check whether each device feature and each measuring instrumentss are installed in place, by tested valve
100 are attached on the flange straight tube 2 33 of tested valve housing two, in order open three-way pipe on can opening and closing structure 51, commutation
Valve 1, reversal valve 4 74, close reversal valve 3 73, reversal valve 2 72 and exhaust ports can opening and closing structure 61, by throttling member
Part 1 and restricting element 2 82 are placed in adjustment state, open air blower 1, adjust restricting element 1 and restricting element 2 82,
Flow value Q, the differential pressure transporting that temperature value T, the flowmeter 4 measured by data collection and analysis module to temperature sensor 9 measures
Voltage drop value hn, the pressure value hv of the porch of tested valve 100 and flowmeter 4 and tested valve 100 before and after the flowmeter 4 that device 41 measures
Between pressure difference h carry out that the theoretical delivery value Q of orifice flowmeter 4 in this condition is calculatedl, and by the reality of flowmeter
Flow value Q and theoretical delivery value QlIt is compared, when deviation is no more than 5%, flow is calculated as align mode, can proceed by suction
Gas is tested, and otherwise needs debugging traffic meter 4；
BS2. air valve is tested：Frequency converter is adjusted, adjusts air blower flow or by adjusting restricting element 1
Air flow rate, the pressure value hv changes of observation tested valve 100 porch are adjusted with restricting element 2 82, while pays attention to flowmeter
The 4 flow value Q measured, it is respectively 5 kPa, 10 kPa, 15 kPa, 20 to record pressure value by data collection and analysis module
Flow value Q under the numerical value such as kPa, 25 kPa, 30 kPa, when the pressure value hv big ups and downs of the porch of tested valve 100, and flow
Value Q tends to be steady, or when the orifice plug of tested valve 100 is blown afloat, then tested valve reaches maximum capacity, data collection and analysis module
Corresponding pressure value-flow value will be recorded and analyzed；
BS3. the micro- row's process record of air valve：After up to maximum capacity, tested valve 100 proceeds by throttling exhaust, this
When flow value Q accordingly reduce, but pressure value hv is also slowly increasing, and recording pressure value by data collection and analysis module is respectively
Flow value Q under the numerical value such as 2kPa, 4 kPa, 6 kPa, until micro- row terminates, at the end of data collection and analysis module will be to micro- row
Corresponding pressure value-flow value is recorded and analyzed；
BS4. test terminates, and closes air blower.
This method of testing takes full advantage of the advantages of stable state source of the gas is tested in described device, so as to obtain reliably, accurately
Ground test result, the pumping property of tested air valve and the indices of exhaust performance can be reflected objectively, exactly.
Obviously, above-described embodiment is only intended to clearly illustrate the technical solution of the utility model example, and simultaneously
Non- is the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give thoroughly all embodiments
Lift.All made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., it should be included in this
Within the protection domain of utility model right requirement.
Claims (10)
1. a kind of air valve performance testing device, it is characterised in that including air blower (1), tested valve housing one (2), flow
Count (4), the air blower (1) connects to form gas flow loop with flowmeter (4) by pipeline, the tested valve housing one (2)
It is arranged between air blower (1) air outlet and flowmeter (4), air blower (1) inlet scoop is connected with three-way pipe (5)；It is described
It is tested that there is exhaust outlet (6), the exhaust outlet (6) and tested valve housing one between valve housing one (2) and air blower (1)
(2) reversal valve one (71) is set between；
Also include the tested valve housing two (3) being arranged between the three-way pipe (5) and flowmeter (4), the tested valve peace
There is reversal valve two (72) between dress seat two (3) and air blower (1)；The tested valve housing one (2), tested valve housing two
(3) reversal valve three (73) and reversal valve four (74) are respectively equipped between gas flow loop pipeline；The tested valve housing one
(2), it is tested on valve housing two (3) that to be respectively equipped with pressure transmitter one (21) and pressure transmitter two (31) tested for measuring
Valve (100) inlet pressure；
The three-way pipe (5) has the outlet being in communication with the outside, and outlet is provided with can opening and closing structure (51)；
Having on the exhaust outlet (6) can opening and closing structure (61).
2. air valve performance testing device according to claim 1, it is characterised in that the reversal valve one (71) and tested valve
It is provided with adjusting means (8) between mounting seat one (2), the adjusting means is the throttling branch road one on pipeline, the throttling
Branch road one is in communication with the outside, and the throttling branch road one is provided with restricting element one (81).
3. air valve performance testing device according to claim 2, it is characterised in that be additionally provided with section on the throttling branch road one
Branch road two is flowed, there is restricting element two (82) on the throttling branch road two, the throttling branch road two connects the restricting element one
The pipeline at both ends.
4. air valve performance testing device according to claim 3, it is characterised in that set in the flowmeter (4) both sides
Differential pressure transmitter (41), temperature sensor (9) is provided between the tested valve housing one (2) and flowmeter (4).
5. air valve performance testing device according to claim 4, it is characterised in that also include respectively with flowmeter (4), temperature
Spend sensor (9), pressure transmitter one (21), pressure transmitter two (31) and the data acquisition of differential pressure transmitter (41) electrical connection
Analysis module.
6. air valve performance testing device according to claim 1, it is characterised in that the tested valve housing one (2) with
Honeycomb screen (110) is additionally provided between flowmeter (4).
7. air valve performance testing device according to claim 1, it is characterised in that the air blower (1) and exhaust outlet (6)
Between set relief valve (120).
8. air valve performance testing device according to claim 1, it is characterised in that the flowmeter (4) is integral type hole
Flowmeter.
9. air valve performance testing device according to claim 2, it is characterised in that the restricting element one (81) is ball
Valve.
10. air valve performance testing device according to claim 3, it is characterised in that the restricting element two (82) is pin
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381071.XU CN206695983U (en) | 2017-04-12 | 2017-04-12 | A kind of air valve performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381071.XU CN206695983U (en) | 2017-04-12 | 2017-04-12 | A kind of air valve performance testing device |
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| Publication Number | Publication Date |
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| CN206695983U true CN206695983U (en) | 2017-12-01 |
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ID=60442225
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720381071.XU Withdrawn - After Issue CN206695983U (en) | 2017-04-12 | 2017-04-12 | A kind of air valve performance testing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885694A (en) * | 2017-04-12 | 2017-06-23 | 株洲南方阀门股份有限公司 | A kind of air valve performance testing device and air valve performance test methods |
| CN109084968A (en) * | 2018-05-29 | 2018-12-25 | 合肥通用机械研究院有限公司 | A kind of air valve dynamic performance and testing and test method |
| CN110763500A (en) * | 2019-11-04 | 2020-02-07 | 中国原子能科学研究院 | Test bed and test method for air door performance test |
| CN111998161A (en) * | 2020-09-01 | 2020-11-27 | 上海威派格智慧水务股份有限公司 | A protector for eliminating municipal administration conduit network cutout closes water hammer |
-
2017
- 2017-04-12 CN CN201720381071.XU patent/CN206695983U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885694A (en) * | 2017-04-12 | 2017-06-23 | 株洲南方阀门股份有限公司 | A kind of air valve performance testing device and air valve performance test methods |
| CN109084968A (en) * | 2018-05-29 | 2018-12-25 | 合肥通用机械研究院有限公司 | A kind of air valve dynamic performance and testing and test method |
| CN110763500A (en) * | 2019-11-04 | 2020-02-07 | 中国原子能科学研究院 | Test bed and test method for air door performance test |
| CN111998161A (en) * | 2020-09-01 | 2020-11-27 | 上海威派格智慧水务股份有限公司 | A protector for eliminating municipal administration conduit network cutout closes water hammer |
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