SL 295-2004 Technical Specifications for Use of Roller-Mounted Sprinklers
Some standard content:
ICS 65. 060. 35
Water conservancy industry standard of the People's Republic of China
SL 295 --2004
Using technical specification for roll whccl linc movc sprinklingirrigalionmachint
2004-02-04 Release
Water Conservancy of the People's Republic of China
2004-05-01 Implementation
Normative textual nature
Technical principles and definitions
Full machine use
4.1 Rice source
4.4 Crops
5 Electricity regulation
5.1 Planning principles
5.3 Statement of capital rights
5.3 Water source analysis + calculation
3-4 Planning and design parameters
Industrial planning and production
Selection calculation
6.1 Selection||tt ||Product.2 Design and calculation
6.3 Equipment matching...
Implementation and expansion
7.1 Installation and commissioning
7.2 Start-up
7.3 Maintenance
Appendix A (informative appendix)
Appendix B (informative appendix)
.........
Basic parameters of roller-type spray gun
Number of components for molten-type port machinery S1.295-2404
This regulation is written based on the standard guideline GB1.1-2000.
This specification is mainly composed of seven parts:
Normative reference documents:
Technical definition:
Application of spraying plan,
Application planning:
Selection calculation:
Operation and maintenance,
Appendix A and appendix of this specification are all state appendices. This specification is from the Ministry of Water Resources Rural Water Conservancy Bureau: SL295-3004
Part 1, the subject of the comprehensive structure and preparation of the provisions of this specification drafting unit, China Drainage Development Center, 1. China Drainage Technology Development Company, China Garment Industry Machinery and Chemical Research Institute. Technical specification drafters: Xu Huazhong, Xu Huahua, Ye You, Jin Cenzhi, Wang Xiaoling, Yao Bin, Qian Buxian. This specification is from the Ministry of Water Resources Rural Water Conservancy Bureau responsible for interpretation. ST.295—2004
In recent years, this mobile sprinkler has been gradually promoted and applied in China. It is different from other types of sprinklers in use. In order to meet the needs of technical development, use mobile sprinklers more effectively and distribute their benefits, a special technical specification is compiled. Scope
Technical specification for the use of mobile sprinklers
SL 2952004
This standard specifies the use conditions of mobile sprinklers, defines the general principles and definitions of the operation and maintenance of mobile sprinklers, and defines the relevant terms. This standard applies to the use and application of mobile sprinklers. 2 Normative references
The items in the listed documents become specifications through reference in this specification. For any referenced document with a date, all subsequent amendments (excluding the contents that have been cancelled) or revisions are not applicable to this specification. However, the parties who reach or agree on this specification are encouraged to study whether the latest versions of these documents are available. For any referenced document without a date, its latest version shall apply to this specification. GH1851985 Technical Specification for Spraying Process
CB5C84-1992 Agricultural Land Condensation Water Quality Standard
GB6556-1086 Terminology of Spraying Culvert Machinery 3 Terms and Terms
GB6956196 The unspecified terms and definitions below shall be used in this specification. 3. Rollwheel movable wall sprayer (hereinafter referred to as rollwheel sprayer) is a kind of mechanical device which takes a spray branch pipe equipped with several wheels as the axle and is driven by an internal combustion engine to roll the spray branch pipe vertically to a fixed spraying position for spraying operation. The rollwheel is a brush-type walking wheel installed on the spray branch pipe. 3.3
Sprinkler main pipe is equipped with arm-type sprinkler, concentrate wheel and other parts: aluminum tube for transmission and transmission, 3.4
Automatic valve
When the sprinkler finishes spraying at a fixed spraying position, the water in the two branches will automatically drain when the spray pipes fall down, 3.5
Driving car
The power car that moves the sprinkler. Stahilizer bar
The support rod that fixes the sprinkler when the sprinkler stops during the flow process. 3.7
Sprinkler leveler uses gravity to keep the sprinkler in the correct position. 1
SL 295- 2004
Ground barrier clearuncc
The distance from the lowest point of the spray branch pipe of the sprayer to the ground. 4 Use conditions of sprayers
4.1 Water source
The water supply capacity of the water source should be sufficient to meet the requirements of the sprayer's working flow: the water quality should meet the requirements of GB4-1! When there are too many floating objects or solid particles in the water, which affect the normal operation of the sprayer, appropriate measures should be taken. 4.2 Terrain
The ground wave drop in the operation area of the sprayer should not be greater than 10 heads. 4.3 Climate
When the wind speed is not less than 1m/s or the air flow is lower than 4, it is not suitable for use. When the temperature is lower than 10, it should not be used. 4.4 Crops
When the crop height change during the overflow period exceeds the gap of the machine, it is not suitable to use: For row-sown crops, the spraying distance and row direction should be adjusted.
Application planning and design
6.1 Planning and design principles
Planning and design should implement relevant national and local laws and regulations, and the requirements of local medium- and long-term planning. Water resources analysis should be used as the basis for planning and design, and appropriate planning and design standards and data should be determined. Planning should be carried out on the premise that the original data are complete and can be saved, and the schemes should be compared. 5.2 Basic information
|The basic data should include the following:
1/5000--1/2000 planning area topography; overview of regional boundaries, ground construction hooks, old residential areas and elevations (contours), transportation roads, transmission lines, rivers, roads, distribution, location, space marking, and general map creation. : Top: type, quality, bulk density, daytime water content, upper and lower limits of soil moisture content, soil depth. 1. Crops, annual crop types, crop distribution, water demand, moisture density and culvert distribution system. Water source: water level (water level of drainage wells, dynamic water level of surface water sources, water level during the period of sedimentation, etc.) Location), flow and its reliable layer analysis data, quality report,
Meteorology: multi-level water basin, water surface evaporation, seasonal wind speed, wind direction, temperature, no data period and maximum permafrost depth, one by one, dynamic type, bulk density, location, status of the proposed station size. Transportation: location, type of erosion, effect and status 5.3 Water source analysis and calculation
5.3.1 When planning and designing, the water source water supply and discharge water basin balance analysis and calculation should be carried out. 5.3.2 When the quality of the flow is controlled, the water source should always be calculated according to the following requirements: If there is a long series of runoff resources, it should be passed through the road The annual runoff basis and its annual distribution including the runoff rate are calculated and the average flow rate in the critical period of water conservancy is calculated. When runoff data are scarce, the relevant analysis method should be used to interpolate and extend the light stream data, and the frequency calculation should be carried out to calculate the above runoff data. In particular, the measured data should be obtained by using the conversion, interpolation or runoff coefficient method of the station. The runoff series can also be calculated by referring to the regional hydrological records or maps, and the critical flow value can be calculated by checking the data of the station: 5.3.3 When the spraying water source is the pond flow, the regional hydrological records or maps can be compared, and the original data can be combined to determine the calculation frequency basis: 295:2(04
5.1.4 When the water source is groundwater, the water source should be determined based on the existing hydrogeological data, the groundwater conditions in the area, and the water source should be adjusted by adjusting the water supply of the adjacent units. For areas without hydrogeological data: the water source should be determined by pumping test
5.3.5 When the water supply process cannot meet the water demand of the resource, the water supply should be extended by 1 step. 5.4 Planning and design parameters
5.4.1 No allowance should be made to ensure that the minimum water level is less than 5: 5.4.2 The parameters for spraying the whole plot should include the following: total spraying area; maximum width of the plot, height of the plot, average length of the plot; slope of the spray chain: 5.43, average size of the structure and annual parameters, including the following: total length: first diameter of the spraying section; roller height: roller height; |tt||Ground,
Spray port Kaili flow;
Spray end inlet pressure:
Following head working pressure:
Night head washing blue:
Spray head shift:
Number of spray heads:
Width of full machine displacement:
Spray machine power steam
For the requirement A, the overall efficiency of the limited nozzle filter machine is given. For the requirement T, the performance dream efficiency of the roller-type watering machine equipped with the customary head is given. s.5 Field planning layout
5.5.1 According to the environment magnetic machine specification, the speed full area city will be arranged according to the rectangular plot. 5.5.2 The channel chase water ratio is adopted, and the channel shows that the company needs to be straight to the sound island change pipe: it is suitable for the agent to help the paint. The total 4 branches should be full of the spray Zhan Zha supporting water collection requirements.
5.5.3 When using pipeline water supply, the pipeline should be vertical to the sprinkler branch, and the water supply should be designed according to the needs. The connection between the sprinkler and the water supply should be flexible, convenient and feasible. The water supply should be of good quality. The water supply should meet the requirements of the machine-machine interaction. When the original pipeline is used for water supply, when the pressure is not enough to meet the pressure of the sprinkler inlet, there should be some pressure increase between the sprinkler and the water supply. 5.5.4 The common water pipeline can be fixed and buried in the ground, and the outlet can be used as a movable pipeline. The installation, disassembly and movement of the movable pipeline are flexible and convenient, and the connection can be convenient.
Stone selection calculation
6.1.1 The single-unit sprinkler system can be calculated according to the formula (1)~(3): A., =(1)
SL2952004
Wherein:
Controlled area of a single sprinkler, in cubic meters per hour (m/lt);Design flow rate of a single sprinkler, in cubic meters per hour (m/lt);Design water supply period, in days (d), T..-.
Net daily spraying time, in hours per day (h/d>, m:, without water bottle, in meters (mm);Soil capacity, in grams per hour =1.15 m (g/cm2), depth of tidal layer, unit: m (em) - upper limit of suitable upper filling water volume (weight percentage) - lower limit of suitable upper filling water volume (weight percentage) - water utilization coefficient:
W - daily water requirement of crop, unit: mm/d, average daily water requirement during critical period of water harvesting 6.1.2 When the planned area is larger than the control area of single existing sprinkler, select 2 sprinklers of the same specification and model, number of sprinklers It can be calculated according to formula (4):
In the formula,
Number of spraying machines:
Planned area, unit is hectare (h hectare). 6.1.3 The spraying atomization index shall comply with the provisions of 3.0.9 of GB85-1985. 6.1.4 The spraying atomization index shall comply with the provisions of 3.0.10 of GB85-1985, and 6.1.5 The spraying uniformity index shall comply with the provisions of 3.0.7 of GB8-1986. .2 Design filling
.21 The distance between adjacent spraying positions of the spraying machine can be determined by the following method, which can be found in the product manual:
Determine according to formula (5)
Where:
The distance between adjacent spraying positions of the spraying machine, the unit is (m); K
Spacing ratio, which can be found in Table 1:
R is the spraying range of the nozzle, in meters (m), 1wwW.bzxz.Net
Nozzle speed
(. 3~-1. 6
1. 6-·3. 4
s. d--5. d
cabinet support parallel to the wind direction
. 8--. 6
.2.2 The effective length of the whole sprayer is calculated according to formula (6): L, = L + 2K,R
Wu,
The effective length of the sprayer positioning sprayer is in meters (m). The distance between the two ends of the sprayer is in meters (m): 4
Sprayer support is perpendicular to the main wind direction
Sealing process overlap coefficient, which is related to wind speed, can be found in the coefficient 2, Table 2
n. 3~-1. e
0. B-- 0. 7
6-2.3 The spray strength can be determined by the following method, which can be found in the product description:
Determined by actual conversion!
Get station (7)-formula (11):
J. ---ct
Kw--- 1. 08vulx
K= 1-12Vane
Play,
accos2R
p..Furious bottle strength, single air density meter per hour (mm/h); K
SE 2952004
3. 4 ~5 4
G. 6-.3. 5
Wind coefficient, when the branch pipe is perpendicular to the wind direction, it can be calculated by (8), when the branch pipe is in the wind direction, it can be calculated by formula (3): wind speed: the unit is meter per second (m/),
combined system sensitivity,
camera spacing, the unit is meter (m)
no wind conditions, single head spraying intensity, single shock is meter green hour [mm/h): 4, single head flow rate, the unit is cubic meter per hour (m\/h).6.2.4 Spraying random times and positioning spraying time can be calculated according to formula (2): 0.001m/Q
night requires a positioning spraying time, the unit is hour () 6.2.5 The design mouth net spraying time should not be stuck in the tenth sign, 6.3 Equipment matching
6.3.1 Pump lift formula (13) calculation.
H =H- H+A
H—water head, unit is meter ():
Sprinkler design working (inlet) water head, single meter (m)—pipeline head loss between sprinkler inlet and water pump inlet, single meter (blood): H.
The elevation of sprinkler inlet and design water level, unit is meter (m), 6.3.2 When the original pipeline water supply needs to be pressurized, the head format (14) is calculated: H
H. + H.. a, -H.
S1.295—2004
H: Pump turn, meter (m); Head loss between the jet inlet and the booster inlet, meter (m); Z: Elevation difference between the jet inlet and the reverse port of the pressure original water pipe, meter (m); H: Water inlet pressure head, meter (m); 6.3.3 The flow rate of the pump or booster system shall meet the requirements of the system design flow strategy; 6.34 The equipment matching of the water supply system shall comply with the requirements of 5.5.2, 5.5.3 and 1.i, 4 of this standard. Operation and maintenance
7.1 Installation and commissioning
1.1 Transport the equipment to the installation site, read the instructions for use, and check the key parts. 1.2 Assemble the drive cart and the middle roller, assemble the flat block and elbow into the balancing device, and install the nozzle on the half-mounted device. 7.1.3 Transport the drive cart, all half rollers, balancing devices and other equipment to the installation site. 1.1.4 Place the drive cart at the midpoint of the installation line. From both sides of the drive cart, install the spray branch pipe according to the direction of the spray branch pipe:
7, 1.5 Place the instant branch pipe on the axis of the half roller according to the direction and force requirements, then buckle the half roller, position and tighten it, and proceed. ||t t||7,1.6 Connect the two branches of the spraying machine in turn, and let the drain valve face downward vertically. Connect the hose at one end of the sprayer and install the tower head.
7.1.7 Install the balancing device and the self-draining net on the spraying machine, turn the sprayer to make the sprayer automatically straighten up. 1. Add fuel and lubricating oil to the internal combustion engine according to the instructions. 7,1.9 Connect the pressure water to clean the pipeline, flush the end piece, and then pass the monitoring water. Observe the performance of the head, drain valve and working. If any problems are found during this process, adjust them in time according to the instructions. 1,10 Start the internal combustion engine, drive the sprayer forward and backward, and observe the driving vehicle, the line running and The carbon head is installed smoothly. Check whether the operation is correct. If there is any problem, correct it according to the instructions. 7.2 Start and run
7.2.1 Move the spraying machine slightly to the spraying operation point, use the brake lever to fix it, and connect the force to position and spray. 7.2.2 When the spraying of a work point is completed, stop the water supply, wait for the water in the spray branch to drain, remove the connecting hose, turn the brake to the side that is consistent with the direction of the sprayer, start the engine, and move to the next work point. 7.2.3 Before the water in the spray branch pipe is automatically drained at both ends of the spray branch, do not filter it: In the case of front drive, straighten the pipe and then move it.
7.2.4 The operation of the sprayer is determined according to the actual situation of the canal, or the following methods can be used: spray the full block of land with the sprayer, and spray from the two working points in turn to the other end of the block in the rolling direction; for the technical specification blocks and the interval working points between the spraying points, the vehicle should start from one end of the spraying block, and move along the rolling direction, spray one working point in turn to the middle of the block: move to the starting point of the block with no load, and then spray from one working point in the rolling direction to the middle of the block. 3 Maintenance
7.3.1 The driving vehicle should be maintained regularly according to the instruction manual. 7.3.2 After the tidal station is connected, use the brake rod to support and fix it in both directions. When the wind speed reaches 1.5 m, it should be fixed with the agent. 7.3.3 When stored in winter or not used for a period of time, it should be dismantled, maintained and stored according to the instructions for use. 5
Appendix A
(Informative Appendix)
Basic parameters of rolling type alarm machine
The basic parameters of rolling type alarm machine are shown in Table 4.1, Table A.! Basic data of mobile spraying machine
Emotional wine branch point control
He Lun Gu Xing
Hui me room
Spray head efficiency
Draining machine flow
Spraying machine positive
Peak Zhang Eat
Gui Bubble Machine Filter Moving Speed Bottom
Spraying Pass Year
GYPsou
101l125
1450,1630,1920
SL 2952(M4
GY1* 200
TY 15.PY.15SL,25PY:,15PY:2,ZY-134
2r-119
n. 3~ n. No. 4
0. 75--.0. 85
4. 4. E. s
12. E -.60
SL295—2004
Appendix A
(Informative Appendix)
Performance parameters of the nozzles for the dyeing type spraying machine The performance parameters of the nozzles for the mobile spraying machine are shown in Table B.1. Table B.1 Performance parameters of the nozzles for the mobile spraying machine
PY,1sh
Height of the end
1X3~-X3
4×2. 5- 6k 3
4 -- 5 5
0. 20-.0. 30
0. 20-+0. 3
0.20-0. 35
D. 26 -- 5. 35
5. 24: ~- 5. 35
0. T9 --2. 96
.20~-3.50
0. 61~3. 56
. 12--3. 00
0. BE--2. 26
Nozzle range
13. 5--28. 0
12. 5--7.6
-1. 5 ~-r.0
.3.1-~.f-2
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