CN109813543A - A kind of trickle irrigation pressure/flow regulator Performance Assessment method and test macro - Google Patents
A kind of trickle irrigation pressure/flow regulator Performance Assessment method and test macro Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 91
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Abstract
The invention discloses a kind of pressure/flow regulator drip irrigation system Performance Assessment method and test macros, test macro is collectively constituted by stem system and several test cells in parallel, can be divided into following four part: stem system, branch pipe unit, measuring unit, flow cell by function.Performance Assessment method is as follows: testing pressure/flow regulator is installed in above-mentioned test macro, and test the pressure/flow regulator performance under the conditions of various working, wherein three kinds of typical conditions proposed by the present invention are that must examine operating condition, other measurement conditions can be simulated and be tested by the above-mentioned test macro of regulation according to actual needs.Present invention firstly provides utilize small-sized test macro simulated pressure/performance of the flow regulator in field drip irrigation system wire examination method and test macro, the test macro occupied area is small, analog examines field various engineering scheme, it is representative strong, it is of great significance for the industrialization production and popularization of pressure/flow regulator.
Description
Technical field
The present invention relates to drip irrigation technique field, in particular to a kind of trickle irrigation pressure/flow regulator Performance Assessment method
With test macro.
Background technique
Under the knob of hypsography and long branch pipe construction conditions, elevation variation and water conservancy friction loss lead to trickle irrigation
It is that safety and uniformity of pouring water cannot ensure.To solve the above problems, installing pressure regulator, flow tune in hollow billet entrance
Section device is necessary.
Since each pressure/flow regulator actual use operating condition is likely to different, and exist between each product inevitable
Manufacture deviation problem, so, in systems in practice carry out bulk article performance pilot scale be very necessary.However, at present
Pressure/flow regulator performance test means be mainly that the sampling Detection of single sample is carried out to the product of batch production, should
The not true hollow billet of pressure/flow regulator downstream connection under test condition, and have ignored pressure/flow used in parallel
The linkage that may cause between adjuster influences.Therefore it carries out the examination of pressure/flow regulator Field trial and is necessary.
The performance pilot scale of pressure/flow regulator field is carried out in actual crop field drip irrigation system, there are inconvenient, representatives
The problems such as property is poor.
Performance pilot scale needs to test, and different pressures are poor between adjacent capillary pressure/flow regulator, and capillary pressure/flow is adjusted
Device downstream connection different type, length hollow billet under the conditions of, each capillary pressure under different stem pressure/flow regulator disengaging
Mouth pressure value and overcurrent magnitude.
In conclusion existing pressure/flow regulator test method and test macro cannot replace under system scale
The performance pilot scale of multiple samples, after can not installing pressure/flow regulator to practical drip irrigation system, security of system is poured water
Even property is assessed.And actual irrigation system is difficult to change pipe net arrangement mode easily, to realize in different working conditions
Under multiple properties of sample pilot scales.
Summary of the invention
In view of this, the present invention provides a kind of pair of pressure/flow regulators to carry out system scale under different operating conditions
The method of performance measuring and evaluating, and provide and be easy to plan arrangement accordingly, occupied area is small can but to represent different actual working conditions
Pipe net arrangement system, to realize performance pilot scale of the pressure/flow regulator under system scale.Performance pilot scale needs to test, phase
Different pressures are poor between adjacent capillary pressure/flow regulator, capillary pressure/flow regulator downstream connection different type, length
Each capillary pressure/flow regulator inlet and outlet pressure value and overcurrent magnitude under the conditions of hollow billet, under different stem pressure.
To achieve the above object, the invention provides the following technical scheme:
A kind of trickle irrigation pressure/flow regulator test macro, comprising: stem system, branch pipe unit and multiple tests are small
Area；
Each test cell includes measuring unit and flow cell；
The water outlet of the stem system is connected to the water inlet of the branch pipe unit, multiple branch pipes of the branch pipe unit
Threeway water outlet and the measuring unit water inlet of multiple measuring units connect one to one, the measuring unit be used for to
Measuring pressure/flow regulator cooperation, the measuring unit water outlet of the measuring unit are connected to the flow cell, the flow
Unit can simulate operating condition.
Preferably, the stem system includes: water tank, return pipe, divides main pipe, the first valve and the second valve；
The return pipe and the water inlet for dividing main pipe are all connected to the water tank, the water outlet connection of the return pipe
In the water tank, first valve is set to the return pipe, and the water outlet for dividing main pipe is connected to the branch pipe
The water inlet of unit, second valve, which is set to, described divides main pipe.
Preferably, the branch pipe unit further includes the multiple branch pipe threeways for being series at the water inlet, the branch pipe threeway
The branch pipe threeway water outlet connect with the measuring unit water inlet；
The branch pipe unit further includes the branch pipe valve that several are arranged between the adjacent branch pipe threeway.
Preferably, the measuring unit further includes being sequentially connected in series to go out in the measuring unit water inlet and the measuring unit
Flowmeter, measuring pressure/flow regulator inlet pressure pressure gauge and measuring pressure/flow regulator outlet pressure between the mouth of a river
Pressure gauge, the measuring pressure/flow regulator inlet pressure pressure gauge and the measuring pressure/flow regulator outlet pressure
Pressure gauge between for connecting the testing pressure/flow regulator.
Preferably, the flow cell includes flow cell water inlet, auxiliary pipe, ball valve and hollow billet；
The import of the auxiliary pipe is connected to the flow cell water inlet, a plurality of hollow billet and the auxiliary pipe it is multiple go out
Mouth connects one to one, and the ball valve is set to the hollow billet.
Preferably, the laying length of each hollow billet is consistent；Alternatively,
The laying length of each hollow billet shortens from the near to the remote and gradually with away from the stem system；Alternatively,
The laying length of each hollow billet is with from the near to the remote and progressively longer away from the stem system.
Preferably, the flow cell includes the pressure gauge of hollow billet, the first elbow and survey capillary end pressure, a plurality of described
Hollow billet is connected by the first elbow head and the tail, and the pressure gauge for surveying capillary end pressure is connected to going out for hollow billet described in end
Mouthful.
A kind of trickle irrigation pressure/flow regulator Performance Assessment method, using such as above-mentioned test macro, comprising:
Step S1, the stem system water supply is opened, until water flow is full of the flow cell, and most away from the stem system
Measuring pressure/flow regulator inlet pressure pressure gauge reaches default initial value in the close measuring unit, enters step
S2；
Step S2, it adjusts the stem system and is stepped up water supply, make the measurement nearest away from the stem system
Measuring pressure/flow regulator inlet pressure pressure gauge in unit with preset it is very poor be gradually increased to maximum inlet pressure, and
Read the reading of each measuring unit under each very poor cumulative measuring point.
Preferably, further includes:
Step S0 before the step S1: the flow cell is adjusted to the first operating condition；
Step S4 after the step S3: the flow cell is adjusted to be different from the second work of first operating condition
Condition, repeating said steps S1 and S2, until completing each default operating condition.
Preferably, the adjustment operating condition in the step S0 and the step S4 are as follows: by hollow billet in each flow cell
Ball valve is opened into the number that corresponding operating condition needs.
It can be seen from the above technical scheme that trickle irrigation provided by the invention pressure/flow regulator Performance Assessment side
Method and test macro have been put forward for the first time using small-sized test macro simulated pressure/flow regulator in field drip irrigation system
The wire examination method and test macro of performance, the test system and test small scale, occupied area is small, and analog examines a variety of works in field
Journey scheme, it is representative strong, it is of great significance for the industrialization production and popularization of pressure/flow regulator.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the pipe net arrangement schematic diagram of pressure/flow regulator system testing provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of stem system provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of branch pipe unit provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of measuring unit provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of flow cell provided in an embodiment of the present invention；
Fig. 6 is the pipe net arrangement schematic diagram of operating condition 1 provided in an embodiment of the present invention；
Fig. 7 is the pipe net arrangement schematic diagram of operating condition 2 provided in an embodiment of the present invention；
Fig. 8 is the pipe net arrangement schematic diagram of operating condition 3 provided in an embodiment of the present invention；
Fig. 9 is another embodiment for the pressure/flow regulator system testing that another embodiment of the invention provides
Pipe net arrangement schematic diagram；
Figure 10 is the structural schematic diagram for the flow cell that another embodiment of the present invention provides；
Wherein, 1 is stem system, and 11 be water supply pipeline, and 12 be water tank, and 13 be ball-cock assembly, and 14 be centrifugal multistage pump multiple centrifugal pump, and 15 are
First valve, 16 be the second valve, and 17 be reducer union, and 18 be water outlet；
2 be branch pipe unit, and 21 be water inlet, and 22 be branch pipe threeway, and 23 be branch pipe threeway water outlet, and 24 be branch pipe valve；
3 be measuring unit, and 31 be measuring unit water inlet, and 32 be flowmeter, and 33 be measuring pressure/flow regulator inlet-pressure
The pressure gauge of power, 34 be testing pressure/flow regulator, and 35 be measuring pressure/flow regulator outlet pressure pressure gauge, and 36 are
Measuring unit water outlet；
4 be flow cell, and 411 be flow cell water inlet, and 412 be flow cell threeway, is managed supplemented by 413,414 be stifled
Head, 415 be ball valve, and 416 be hollow billet；421 be flow cell water inlet, and 422 be bypass, and 423 be hollow billet, and 424 be the first elbow,
425 be the second elbow, and 426 be the pressure gauge for surveying 423 terminal pressure of hollow billet；
5 be test cell.
Specific embodiment
To meet above-mentioned purpose, the present invention takes following technical scheme: the irrigation to pressure/flow regulator possible application
System situation is classified, and proposes that three kinds of typical conditions that must be examined are as follows: operating condition 1: ground is block-shaped when being rectangle, and each pressure/
The almost the same drip irrigation system of flow regulator downstream hollow billet laying length；Operating condition 2: ground it is block-shaped for it is trapezoidal when, each pressure/stream
Amount adjuster downstream hollow billet laying length shortens with each pressure/flow regulator away from stem water source from the near to the remote and gradually.Operating condition
3: ground it is block-shaped for it is trapezoidal when, each pressure/flow regulator downstream hollow billet laying length is with each pressure/flow regulator away from stem
Water source is from the near to the remote and progressively longer.Above-mentioned detection operating condition is the three kinds of typical conditions that must be examined, can be according to Practical Project in test
Demand simulates more complicated drip irrigation system and carries out corresponding system detection by regulating and controlling test macro proposed by the present invention.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Trickle irrigation provided in an embodiment of the present invention pressure/flow regulator test macro, comprising: stem system 1, branch pipe list
Member 2 and multiple test cells 5；
Each test cell 5 includes measuring unit 3 and flow cell 4, and structure is referred to shown in Fig. 1；
Wherein, the water outlet 18 of stem system 1 is connected to the water inlet 21 of branch pipe unit 2, multiple branch pipes of branch pipe unit 2
Threeway water outlet 23 and the measuring unit water inlet 31 of multiple measuring units 3 connect one to one, and measuring unit 3 is used for to be measured
Pressure/flow regulator 34 cooperates, and the measuring unit water outlet 36 of measuring unit 3 is connected to the water inlet 411 of flow cell 4,
The flow cell 4 can simulate operating condition, including hollow billet.
It can be seen from the above technical scheme that trickle irrigation provided in an embodiment of the present invention is tested with pressure/flow regulator
System, by the way that multiple testing pressure/flow regulators 34 are used in parallel, linking caused by analog is mutual influences, real
The performance pilot scale of multiple samples under system scale is showed.
Preferably, stem system 1 includes: water tank 12, return pipe a, divides main pipe b, the first valve 15 and the second valve 16,
Its structure is referred to shown in Fig. 2；
Wherein, return pipe a and the water inlet of main pipe b is divided to be all connected to water tank 12, the water outlet of return pipe a is connected to water tank
12, the first valve 15 is set to return pipe a, the water inlet 21 for dividing the water outlet 18 of main pipe b to be connected to branch pipe unit 2, the second valve
Door 16 is set to a point main pipe b.By the first valve 15 on Joint regulation return pipe a and divide the second valve 16 on main pipe b
Aperture, can pressure of the precision control by each pressure/flow regulator measuring unit 3, flow.
In order to advanced optimize above-mentioned technical solution, branch pipe unit 2 further includes the multiple branch pipes for being series at water inlet 21
The branch pipe threeway water outlet 23 of threeway 22, the branch pipe threeway 22 is connect with measuring unit water inlet 31, and structure is referred to Fig. 3
It is shown；
Branch pipe unit 2 further includes several settings in water inlet 21, and the branch between two neighboring branch pipe threeway 22
Tube valve 24.By regulating and controlling the aperture of branch pipe valve 24, can be changed in water (flow) direction, adjacent each branch pipe threeway 22 measures branch pipe
Head loss between threeway water outlet 23, with simulate in Practical Project because elevation variation, flow resistance loss caused by branch pipe not
With the big phenomenon of position water outlet pressure gap.
Specifically, measuring unit 3 further includes successively being connected on measuring unit water inlet 31 and measuring unit along water (flow) direction
Flowmeter 32, measuring pressure/flow regulator inlet pressure pressure gauge 33 and measuring pressure/flow regulator between water outlet 36
The pressure gauge 35 of outlet pressure, measuring pressure/flow regulator inlet pressure pressure gauge 33 and measuring pressure/flow regulator outlet
For connecting testing pressure/flow regulator 34 between the pressure gauge 35 of pressure, structure is referred to shown in Fig. 4, with comprehensive
Every test parameter is obtained for examining.
In one embodiment that this programme provides, flow cell 4 includes flow water inlet 411, auxiliary pipe 413, ball valve
415 and hollow billet 416, structure is referred to shown in Fig. 5；
Wherein, flow cell 4 further includes auxiliary pipe 413, and the import of the auxiliary pipe 413 is connected to flow water inlet 411, a plurality of hair
Pipe 416 and multiple outlets of auxiliary pipe 413 connect one to one, and ball valve 415 is set to hollow billet 416.Ball valve 45 can open or close,
46 number of hollow billet that flow can be assigned on the auxiliary pipe 43 of each flow cell 4 is controlled with this, thus each testing pressure/flow of analog
Operating condition under the hollow billet length and different inflow-rate of water turbines of 34 downstream connection of adjuster sample.
In order to advanced optimize above-mentioned technical solution, flow cell 4 can simulate operating condition, including variety classes hollow billet is not
With total inflow-rate of water turbine situation when laying length.The present embodiment, which additionally provides three kinds, must examine typical condition, to realize in different operating conditions
Under the conditions of multiple properties of sample pilot scales:
The laying length of each hollow billet 416 is consistent, and accordingly block-shaped when being rectangle, structure is referred to shown in fig. 6
Operating condition 1, dotted line therein are balk line, similarly hereinafter；Alternatively,
The laying length of each hollow billet 416 shortens from the near to the remote and gradually with away from stem system 1, accordingly block-shaped terraced to fall
When shape, structure is referred to operating condition 2 shown in Fig. 7；Alternatively,
The laying length of each hollow billet 416 is with progressively longer from the near to the remote away from stem system 1, the accordingly block-shaped ladder that is positive
When shape, structure is referred to operating condition 3 shown in Fig. 8.Certainly, the above some examples being only enumerated, this programme is not
It is limited only to this, can arbitrarily change each 416 length of hollow billet according to actual needs, test macro is adjusted to the work needed
Condition.
In second embodiment that this programme provides, flow cell 4 includes hollow billet 423, the first elbow 424 and survey hollow billet
The pressure gauge 426 of terminal pressure, a plurality of hollow billet 423 are connected from beginning to end by the first elbow 424, and pressure gauge 426 is connected to end hollow billet
423 outlet.The hollow billet pressure measured by calculating the hollow billet inlet pressure and pressure gauge 46 that pressure gauge 35 measures in measuring unit 3
The difference of power terminal pressure can obtain the frictional head loss of the flow cell hollow billet, and then can extrapolate hollow billet by formula
Whether laying length oversteps the extreme limit laying length.The embodiment be suitable for test macro can occupied area it is smaller, and single hollow billet
The longer situation of laying length.
This programme is described further combined with specific embodiments below:
To realize performance test of multiple pressure/flow regulators under above-mentioned different working conditions, what the present invention designed
Easily-testing is as follows with pipe net arrangement technical solution: a kind of irrigation system pipe net arrangement structure of analog multi-state condition.Its
Feature exists: being easy to change each pressure/flow regulator downstream hollow billet laying length under limited area to realize pressure/flow
Test job of adjuster under the conditions of different inflow-rate of water turbines, easily controllable each pressure/flow regulator inlet pressure is to simulate reality
The case where each pressure/flow regulator inlet pressure differs greatly caused by losing in the engineering of border because of landform or flow resistance.It should
Test pipe network system includes 4 parts: stem system 1, branch pipe unit 2, measuring unit 3, flow cell 4.
The test macro is made of stem system 1 and several test cells 5.
The stem system 1, water supply pipeline 11 and a water tank 12 including being equipped with ball-cock assembly 13, when the water tank 12
When interior water underfill, the water supply pipeline logical 11 crosses ball-cock assembly 13 and continues to supply water to the water tank 12, when in the water tank 12
Liquid level did not had 13 bottom of ball-cock assembly, and the ball-cock assembly 13 closes, stops supplying water into the water tank 12.The stem system 1 is wrapped
The centrifugal multistage pump multiple centrifugal pump 14 of one high lift big flow is included, 14 water inlet of centrifugal pump connects above-mentioned water tank 12, and water outlet passes through
Threeway connects two points of main pipes a, b, and return pipe a plays shunting function, part water is led back water tank 12；Main pipe b is divided to be connected to branch pipe
Unit 2.Be connected to accurate first valve 15 on the return pipe a, it is described divide on main pipe b be connected to accurate second valve 16, lead to
Cross regulation the first valve 15, the pressure on the controllable each point of main pipe of the second valve 16, flow.Described two points of main pipes a, b are simultaneously
Connection relationship can be such that the pressure flow on another point main pipe changes by adjusting the valve connected on a wherein point of main pipe.It is logical
The first valve 15 for crossing on Joint regulation return pipe a and the aperture for dividing the second valve 16 on main pipe b, can precision control pass through it is each
The pressure of pressure/flow regulator measuring unit 3, flow.Described point of main pipe b is connected by reducer union 17 with branch pipe unit
It connects, water outlet 18 is connected with 2 water inlet 21 of branch pipe unit.
The test cell 5 by branch pipe unit 2 a part (branch pipe threeway 22, branch pipe valve 24 and one section of connecting pipe)
It is collectively constituted with 3, flow cells 4 of a measuring unit.
The branch pipe unit 2 is connected by water inlet 21 with stem system water outlet 18.The branch pipe unit 2 is by pipeline
A series of concatenated branch pipe threeways 22, branch pipe valve 24 collectively constitute.22 water outlet 23 of branch pipe threeway and measuring unit 3
Measuring unit water inlet 31 is connected to.By regulating and controlling the aperture of the branch pipe valve 24, can be changed in water (flow) direction, adjacent each
Head loss between 22 branch pipe threeway water outlet 23 of pipe threeway.Concatenated branch pipe threeway 22, branch pipe valve on the branch pipe unit 2
24 can increased or decrease according to actual needs.The branch pipe diameter can arbitrarily change according to actual needs.
The number of the measuring unit 3 is consistent with 22 number of branch pipe threeway on branch pipe unit 2.The measuring unit 3 is surveyed
Amount unit water inlet 31 is connected with the 22 branch pipe threeway water outlet 23 of branch pipe threeway on branch pipe unit 2.The measuring unit 3 is along water
Direction is flowed by flowmeter 32, measuring pressure/flow regulator inlet pressure pressure gauge 33, testing pressure/flow regulator 34, survey
The pressure gauge 35 of pressure/flow regulator outlet pressure is sequentially connected in series.The measuring unit end measuring unit water outlet
36 are connected with 4 flow water inlet 411 of flow cell.The number of the measuring unit 3 can be adjusted arbitrarily according to actual needs.
The 4 flow water inlet 411 of flow cell is connected with above-mentioned 3 measuring unit water outlet 36 of measuring unit.It is passed through stream
The water flow for measuring water inlet 411, is assigned to two auxiliary pipes 413 being connected in flow threeway 412, hollow billet by flow threeway 412
416 are connect by release valve ball 415 of the socket joint on auxiliary pipe 413 with auxiliary pipe.413 end of auxiliary pipe is connected to plug 414, with
Ensure that the water flow for being passed through flow cell is fully allocated on each hollow billet 416.The release valve ball 415 can open or close, with this
416 number of hollow billet that flow can be assigned on the auxiliary pipe 413 of each flow cell 4 is controlled, thus each testing pressure of analog/flow tune
Save the operating condition under the hollow billet length and different inflow-rate of water turbines of device sample downstream connection.The number and above-mentioned measurement of the flow cell 4
3 number of unit is consistent.415 number of release valve ball is consistent with 416 number of hollow billet.According to actual needs, it is connected on auxiliary pipe 413
Type, number and the length of hollow billet 416 can arbitrarily adjust.
Test macro control program is as follows:
It, need to be by random sampling to detect the working condition of the pressure/flow regulator of batch production in practical projects
Product, which is installed in above-mentioned test macro, carries out performance detection.
By the valve 24 on control branch pipe unit 2, adjacent each 22 branch pipe three of branch pipe threeway in water (flow) direction can be changed
Head loss between the pass-out mouth of a river 23.To realize under limited branch pipe laying length, simulates long branch pipe in Practical Project and be laid with
Under the conditions of, two pressure/flow regulators apart from each other, because frictional head loss or height difference variation due to cause inlet pressure poor
Different significant situation.By the above-mentioned release valve ball 415 of unlatching (closing), can increase can be assigned to flow on (reduction) auxiliary pipe 413
416 number of hollow billet, with when each testing pressure of this analog/flow regulator sample downstream connection hollow billet type, length not
With the operating condition under inflow-rate of water turbine.
To sum up, pass through the unlatching in 24 aperture of branch pipe valve and adjustment flow cell 4 on Joint regulation branch pipe unit 2
415 number of ball valve is, it can be achieved that simulate different irrigated area area (different branch pipe laying lengths, different hollow billets in the plot of limited areal
Laying length), different irrigated areas it is block-shaped, different branch pipes are laid under orographic conditions, be connected to the pressure of different location on branch pipe/
The working environment of flow regulator.
Three kinds must to examine typical condition as follows:
Operating condition 1: ground is block-shaped when being rectangle, the almost the same drop of each pressure/flow regulator downstream hollow billet laying length
Fill system；Operating condition 2: ground it is block-shaped for it is trapezoidal when, each pressure/flow regulator downstream hollow billet laying length is with each pressure/flow
Adjuster shortens from the near to the remote and gradually away from stem water source.Operating condition 3: ground is block-shaped when being trapezoidal, under each pressure/flow regulator
It is from the near to the remote and progressively longer away from stem water source with each pressure/flow regulator to swim hollow billet laying length.
Above-mentioned detection operating condition is the three kinds of typical conditions that must be examined, can be each by changing according to Practical Project demand in test
2 branch pipe type of branch pipe unit, 24 aperture of branch pipe valve increase and reduce test cell 3,4 number of flow cell, adjust flow cell
The type of 4 hollow billets 416 connected, item number, length simulate more complicated drip irrigation system (adjacent capillary pressure/flow regulator
Between different pressures it is poor, capillary pressure/flow regulator downstream connection different type, length hollow billet under the conditions of, different stem pressures
Each capillary pressure/flow regulator inlet and outlet pressure value and overcurrent magnitude under power).
Another embodiment of the invention is as shown in Figure 9: single to increase when test macro can be used site area smaller
Root hollow billet laying length will be mostly together in series with hollow billet using several 180 ° of elbows, in capillary end installation pressure gauge for surveying
Try single capillary end pressure value.The embodiment flow cell arranges that concrete mode is as shown in Figure 10: the water inlet of 4 flow of flow cell
Mouthfuls 421 are connected connection with 3 measuring unit water outlet 36 of measuring unit, and bypass 422 connects measuring unit water inlets 421 and hollow billet
423, a plurality of 423 parallel arrangement of hollow billet, and connected by 180 ° of first elbow 424, capillary end passes through 90 ° of second elbows
425 are connected with pressure gauge 426, and the pressure gauge 426 is for measuring capillary end pressure.By calculating the pressure in measuring unit 3
The difference for the capillary pressure terminal pressure that the hollow billet inlet pressure and pressure gauge 426 that power table 35 measures measure, can obtain the flow
The frictional head loss of unit hollow billet, and then hollow billet laying length can be extrapolated by formula and whether overstepped the extreme limit laying length.
The embodiment be suitable for test macro can occupied area it is smaller, and the single longer situation of hollow billet laying length.
The embodiment of the invention also provides a kind of trickle irrigation pressure/flow regulator Performance Assessment methods, using such as above-mentioned
Test macro, comprising:
Step S1, it opens stem system 1 to supply water, until water flow is full of flow cell 4, and the measurement nearest away from stem system 1
Measuring pressure/flow regulator inlet pressure pressure gauge 33 reaches default initial value in unit 3, enters step S2；
Step S2, it adjusts stem system 1 and is stepped up water supply, make away from the pressure in the nearest measuring unit 3 of stem system 1
Power table 33 with preset it is very poor be gradually increased to maximum inlet pressure, and read the reading of each measuring unit 3 under each very poor cumulative measuring point
Number.
It can be seen from the above technical scheme that trickle irrigation provided in an embodiment of the present invention pressure/flow regulator performance
Wire examination method, by the way that multiple testing pressure/flow regulators 34 are used in parallel, link shadow caused by analog is mutual
It rings, realizes the performance pilot scale of multiple samples under system scale.
The wire examination method of the program, further includes:
Step S0 before step S1: flow cell 4 is adjusted to the first operating condition；
Step S4 after step S3: flow cell 4 is adjusted to be different from the second operating condition of the first operating condition, repeats step
S1 and S2, until completing each default operating condition.
In the present embodiment, the adjustment operating condition in step S0 and step S4 are as follows: by the ball of hollow billet 416 in each flow cell 4
Valve 415 is opened into the number that corresponding operating condition needs.
This programme is described further combined with specific embodiments below:
The specific operating steps of test macro are as follows:
The ball valve 415 in each flow cell 4 is opened into the number that corresponding operating condition needs first；Then regulate and control branch pipe unit
Branch pipe valve 24 on 2 causes between adjacent pressure/flow regulator 34 that there are obvious inlet pressure differences；Upper hose 11 is opened,
It is filled the water by ball-cock assembly 13 into water tank 12, completely close the second valve 16 and fully opens the first valve 15, open water pump 14；
Gradually open the second valve 16, after water flow full of after each hollow billet 416, adjust 16 aperture of the second valve, make away from stem it is nearest one
Inlet pressure gauge 33 in a measuring unit 3 for 0.02MPa or 0.05MPa, (advise according to pressure (flow) adjuster by specific value
Depending on lattice and measuring accuracy), after the system stabilizes, read flowmeter 32, the inlet pressure gauge 33, outlet in each measuring unit 3
Pressure gauge 35 is read；Pass through opening valve 16 and close the first valve 15, is stepped up the inlet-pressure of each pressure/flow regulator 34
Power；The delivery gauge 35 in a measuring unit 3 nearest away from stem read it is basicly stable before, control valve 15,16 makes
Away from the inlet pressure gauge 33 in a nearest measuring unit 3 of stem, with 0.02MPa or 0.05MPa, (specific value is according to pressure
Depending on adjuster or flow regulator specification and measuring accuracy) it is very poor be stepped up, and read the flow in each measuring unit 3
Meter 32, inlet pressure gauge 33, delivery gauge 35 are read；To away from the delivery gauge in a nearest measuring unit 3 of stem
After 35 readings are basicly stable, control valve 15,16, make away from the inlet pressure gauge 33 in a nearest measuring unit 3 of stem with
0.05Mpa's or 0.10MPa (specific value is depending on pressure regulator or flow regulator specification and measuring accuracy) is very poor
It is gradually increased to the pressure/flow regulator 34 maximum inlet pressure nearest away from stem, is read under each measuring point, each measuring unit 3
In flowmeter 32, inlet pressure gauge 33, delivery gauge 35 read；The ball valve 415 in each flow cell 4 is changed to be opened into separately
The number that one operating condition needs, and repeat aforesaid operations.According to aforesaid operations, respectively under the conditions of measurement condition 1,2,3, each pressure
The performance of (flow) adjuster.
Plumbing dimensions used in above-mentioned branch pipe unit 2, the plumbing dimensions that can be selected according to actual irrigation system select；On branch pipe
Branch pipe valve 24 aperture, the actual pressure value that can be measured according to actual irrigation system branch pipe first and last end, or according to formula meter
Obtained theoretical pressure value regulates and controls；Type, item number, the length for the hollow billet 416 that each flow cell 4 is connected can be according to reality
The hollow billet type and laying length that irrigation system is selected arbitrarily change, and comprehensively consider test macro land occupation size and increase or decrease
Hollow billet is laid with item number.
The present invention is by adopting the above scheme, the system for having the advantage that 1, being put forward for the first time pressure/flow regulator
Scale Performance Assessment method and testing scheme: the proposition of the test macro and testing scheme, for the work of pressure/flow regulator
Cheng Yingyong is of great significance.2, it realizes and is simulated under each actual working conditions with small area pipe network system, pressure/flow is adjusted
The working environment of device.It is represented with three classes typical condition and the field Simplified Performance for realizing batch pressure/flow regulator is examined
Core work.Test pipe network system can be arbitrarily adjusted according to actual irrigation system real working condition and test macro arrangement areas size
Arrangement and control program.3, the testing scheme is easy to operate, and labor intensity is low.
In conclusion the invention discloses a kind of pressure/flow regulator drip irrigation system Performance Assessment methods and test system
System.Test macro is collectively constituted by stem system and several test cells in parallel, can be divided into following four by function
A part: stem system, branch pipe unit, measuring unit, flow cell.Performance Assessment method is as follows: by testing pressure/flow tune
Section device is installed in above-mentioned test macro, and tests the pressure/flow regulator performance under the conditions of various working, wherein the present invention
The three kinds of typical conditions proposed are that must examine operating condition, other measurement conditions can according to actual needs, by regulating and controlling above-mentioned test macro
It simulates and tests.Present invention firstly provides utilize small-sized test macro simulated pressure/flow regulator in field drip irrigation system
In performance wire examination method and test macro, the test system and test small scale, occupied area is small, analog examine field it is more
Kind engineering proposal, it is representative strong, it is of great significance for the industrialization production and popularization of pressure/flow regulator.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of trickle irrigation pressure/flow regulator test macro characterized by comprising stem system (1), branch pipe unit
(2) and multiple test cells (5)；
Each test cell (5) includes measuring unit (3) and flow cell (4)；
The water outlet (18) of the stem system (1) is connected to the water inlet (21) of the branch pipe unit (2), the branch pipe unit
(2) the measuring unit water inlet (31) of multiple branch pipe threeway water outlets (23) and multiple measuring units (3) corresponds
Connection, the measuring unit (3) cooperate for same testing pressure/flow regulator (34), the measurement list of the measuring unit (3)
First water outlet (36) is connected to the flow cell (4), and the flow cell (4) can simulate operating condition.
2. trickle irrigation according to claim 1 pressure/flow regulator test macro, which is characterized in that the stem system
System (1) includes: water tank (12), return pipe (a), divides main pipe (b), the first valve (15) and the second valve (16)；
The return pipe (a) and the water inlet for dividing main pipe (b) are all connected to the water tank (12), the return pipe (a)
Water outlet is connected to the water tank (12), first valve (15) is set to the return pipe (a), the main pipe (b) that divides
The water outlet (18) is connected to the water inlet (21) of the branch pipe unit (2), and second valve (16) is set to institute
State a point main pipe (b).
3. trickle irrigation according to claim 1 pressure/flow regulator test macro, which is characterized in that the branch pipe list
First (2) further include the multiple branch pipe threeways (22) for being series at the water inlet (21), the branch pipe of the branch pipe threeway (22)
Threeway water outlet (23) is connect with the measuring unit water inlet (31)；
The branch pipe unit (2) further includes the branch pipe valve (24) that several are arranged between the adjacent branch pipe threeway (22).
4. trickle irrigation according to claim 1 pressure/flow regulator test macro, which is characterized in that the measurement is single
First (3) further include the flow being sequentially connected in series between the measuring unit water inlet (31) and the measuring unit water outlet (36)
Count (32), measuring pressure/flow regulator inlet pressure pressure gauge (33) and measuring pressure/flow regulator outlet pressure pressure
Table (35), the measuring pressure/flow regulator inlet pressure pressure gauge (33) and the measuring pressure/flow regulator outlet pressure
For connecting the testing pressure/flow regulator (34) between the pressure gauge (35) of power.
5. trickle irrigation according to claim 1 pressure/flow regulator test macro, which is characterized in that the flow list
First (4) include flow cell water inlet (411), auxiliary pipe (413), ball valve (415) and hollow billet (416)；
The import of the auxiliary pipe (413) is connected to the flow cell water inlet (411), a plurality of hollow billet (416) with it is described
Multiple outlets of auxiliary pipe (413) connect one to one, and the ball valve (415) is set to the hollow billet (416).
6. trickle irrigation according to claim 5 pressure/flow regulator test macro, which is characterized in that each hollow billet
(416) laying length is consistent；Alternatively,
The laying length of each hollow billet (416) shortens from the near to the remote and gradually with away from the stem system (1)；Alternatively,
The laying length of each hollow billet (416) is with from the near to the remote and progressively longer away from the stem system (1).
7. trickle irrigation according to claim 1 pressure/flow regulator test macro, which is characterized in that the flow list
First (4) include hollow billet (423), the first elbow (424) and the pressure gauge (426) for surveying capillary end pressure, a plurality of hollow billet
(423) it is connected by the first elbow (424) head and the tail, the pressure gauge (426) for surveying capillary end pressure is connected to end institute
State the outlet of hollow billet (423).
8. a kind of trickle irrigation pressure/flow regulator Performance Assessment method, which is characterized in that any using such as claim 1-7
Test macro described in one, comprising:
Step S1, it opens the stem system (1) to supply water, until water flow is full of the flow cell (4), and away from the stem system
(1) measuring pressure/flow regulator inlet pressure pressure gauge (33) reaches default initial number in the nearest measuring unit (3)
Value, enters step S2；
Step S2, it adjusts the stem system (1) and is stepped up water supply, make the survey nearest away from the stem system (1)
Measuring pressure/flow regulator inlet pressure pressure gauge (33) in amount unit (3) with preset it is very poor be gradually increased to it is maximum into
Mouth pressure, and read the reading of each measuring unit (3) under each very poor cumulative measuring point.
9. trickle irrigation according to claim 8 pressure/flow regulator Performance Assessment method, which is characterized in that further include:
Step S0 before the step S1: the flow cell (4) is adjusted to the first operating condition；
Step S4 after the step S3: the flow cell (4) is adjusted to be different from the second work of first operating condition
Condition, repeating said steps S1 and S2, until completing each default operating condition.
10. trickle irrigation according to claim 9 pressure/flow regulator Performance Assessment method, which is characterized in that the step
Adjustment operating condition in rapid S0 and the step S4 are as follows: open the ball valve (415) of hollow billet (416) in each flow cell (4)
The number needed to corresponding operating condition.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366200A (en) * | 2020-03-11 | 2020-07-03 | 中国农业科学院农业环境与可持续发展研究所 | Working parameter calculation method and irrigation matching method of Venturi gas filling device |
| CN114451197A (en) * | 2022-02-17 | 2022-05-10 | 苏州高博软件技术职业学院 | Drip irrigation cultivation device based on wisdom agriculture |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1543772A (en) * | 2003-11-15 | 2004-11-10 | 中国农业科学院农田灌溉研究所 | Movable underground drip irrigation device |
| RO123186B1 (en) * | 2007-11-29 | 2011-02-28 | Ilie Biolan | Watering system and method using diluted waste water |
| CN104713706A (en) * | 2013-12-11 | 2015-06-17 | 甘肃大禹节水集团股份有限公司 | Device for detecting anti-blocking performance of flow straightener and detection method |
| KR101808710B1 (en) * | 2016-10-19 | 2018-01-18 | (주)모토닉 | Test apparatus and method for high regulator |
| CN109060329A (en) * | 2018-08-07 | 2018-12-21 | 中国农业大学 | The continuous fast testing system of drip irrigation system douche performance of anti-blockage and method |
| CN109187001A (en) * | 2018-09-25 | 2019-01-11 | 芜湖天航装备技术有限公司 | A kind of motorized adjustment class valve big flow performance test apparatus and its test method |
| CN109220724A (en) * | 2018-10-24 | 2019-01-18 | 中国水利水电科学研究院 | A kind of drip irrigation zone limit is laid with the test device of distance and uniformity of irrigation water appilcation |
| CN209894456U (en) * | 2019-03-21 | 2020-01-03 | 中国农业大学 | Performance examination and test system for pressure/flow regulator for drip irrigation |
-
2019
- 2019-03-21 CN CN201910217141.1A patent/CN109813543A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1543772A (en) * | 2003-11-15 | 2004-11-10 | 中国农业科学院农田灌溉研究所 | Movable underground drip irrigation device |
| RO123186B1 (en) * | 2007-11-29 | 2011-02-28 | Ilie Biolan | Watering system and method using diluted waste water |
| CN104713706A (en) * | 2013-12-11 | 2015-06-17 | 甘肃大禹节水集团股份有限公司 | Device for detecting anti-blocking performance of flow straightener and detection method |
| KR101808710B1 (en) * | 2016-10-19 | 2018-01-18 | (주)모토닉 | Test apparatus and method for high regulator |
| CN109060329A (en) * | 2018-08-07 | 2018-12-21 | 中国农业大学 | The continuous fast testing system of drip irrigation system douche performance of anti-blockage and method |
| CN109187001A (en) * | 2018-09-25 | 2019-01-11 | 芜湖天航装备技术有限公司 | A kind of motorized adjustment class valve big flow performance test apparatus and its test method |
| CN109220724A (en) * | 2018-10-24 | 2019-01-18 | 中国水利水电科学研究院 | A kind of drip irrigation zone limit is laid with the test device of distance and uniformity of irrigation water appilcation |
| CN209894456U (en) * | 2019-03-21 | 2020-01-03 | 中国农业大学 | Performance examination and test system for pressure/flow regulator for drip irrigation |
Non-Patent Citations (3)
| Title |
|---|
| 李连忠;牛文全;魏正英;谢巧丽;周兴;: "微灌压力调节器调压特性流固耦合数值计算及分析", 西安交通大学学报, no. 05, pages 136 - 141 * |
| 田金霞;龚时宏;李光永;王建东;: "微灌压力调节器参数对出口预置压力影响的研究", 农业工程学报, no. 12, pages 57 - 60 * |
| 臧丽花: "滴灌系统支管压力调节器开发和试验研究", 中国优秀博硕士学位论文全文数据库（硕士）农业科技辑, no. 05, pages 21 - 23 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366200A (en) * | 2020-03-11 | 2020-07-03 | 中国农业科学院农业环境与可持续发展研究所 | Working parameter calculation method and irrigation matching method of Venturi gas filling device |
| CN111366200B (en) * | 2020-03-11 | 2021-06-29 | 中国农业科学院农业环境与可持续发展研究所 | Working parameter calculation method and irrigation matching method of Venturi gas filling device |
| CN114451197A (en) * | 2022-02-17 | 2022-05-10 | 苏州高博软件技术职业学院 | Drip irrigation cultivation device based on wisdom agriculture |
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