CN106638787A - Empty pipe irrigation control method of water supply system - Google Patents
Empty pipe irrigation control method of water supply system Download PDFInfo
- Publication number
- CN106638787A CN106638787A CN201611011240.7A CN201611011240A CN106638787A CN 106638787 A CN106638787 A CN 106638787A CN 201611011240 A CN201611011240 A CN 201611011240A CN 106638787 A CN106638787 A CN 106638787A
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- Prior art keywords
- water
- water system
- control device
- pressure
- pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 491
- 230000002262 irrigation Effects 0.000 title claims abstract description 30
- 238000003973 irrigation Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 31
- 230000000977 initiatory effect Effects 0.000 claims description 12
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000003020 moisturizing effect Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
- E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structural Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Fluid Pressure (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses an empty pipe irrigation control method of a water supply system. By connecting control equipment setting of the water supply system to a control equipment signal input end of the water supply system, and when a pressure sensor which is arranged at a water outlet end of the water supply system is under a minimum pressure value, a frequency converter of the water supply system outputs to a minimum power starting frequency of a water pump; then, by connecting control equipment setting of the water supply system to the control equipment signal input end of the water supply system, and when the pressure sensor which is arranged at the water outlet end of the water supply system is under a certain pressure value, the water pump of the water supply system works under an empty pipe irrigation mode; and finally, by connecting control equipment setting of the water supply system to the control equipment signal input end of the water supply system, and when the pressure sensor which is arranged at the water outlet end of the water supply system is above the certain pressure value, the water pump of the water supply system works under a water supply mode. With the application of the control method provided by the invention, the service life of the water pump of the water supply system can be prolonged and an energy-saving effect can be achieved.
Description
Technical field
The present invention relates to water system using method field, particularly a kind of to use for the first time and running water in water system
Pipeline cut off the water after water again, the water pump operation of water system by water suction to water system water side to user's water service pipe road it
Between blank pipe in when, by the pressure sensor pressure value on the water system water side, Jing is pre-entered to supplying water system
Data Control water system frequency converter in system control device is input into the supply frequency of water system water pump, so as to control to supply water
The mode of operation of system water pump, when the pressure in blank pipe pipeline is less than below setting value, the water pump of water system control device,
Blank pipe Irrigation Model is operated under frequency converter effect, water pump is under low discharge low lift working condition, when in blank pipe pipeline
Higher than after setting value, the water pump of water system is operated in normal water supply pattern, frequency conversion to pressure under control device, frequency converter effect
Device is input into the target pressure value set with control device with the discharge pressure of water system water side to the supply frequency of water pump
Difference changes and changes, it is therefore prevented that when the common water system blank pipe without corresponding control methods is poured water, because of blank pipe pipeline moisturizing
Shi Suoxu lifts are not high, and the blank pipe pipeline moisturizing time is longer, and water pump long-time is easily made in big flow working condition at full capacity
Big into vibration, noise during pump working, power consumption is big, even result in pump motor coil it is overheated and burn, water pump vane is damaged
The water system blank pipe of shortcoming is poured water control method.
Background technology
Water system be under-voltage running water by water system supercharging after, be then input to skyscraper resident family pipeline
In, enable high-rise buildings normally using the facility to running water, after cutting off the water using water system or water supply pipe first time
Again during water, the water pump operation of water system is by water suction to water system water side to the pipeline between user's water service pipe road
Inside be called blank pipe to pour water, existing water system carry out blank pipe pour water operation when, without a kind of suitable control method, supply water
The water pump of system is always worked under low lift, big flow pattern, because the blank pipe pipeline moisturizing time is general longer, when water pump is long
Between in big flow operate at full capacity state (when water pump cross low lift work when, its flow substantially exceeds its metered flow, water
The discharge of pump and the shaft power of water pump are to be directly proportional, and the shaft power of the bigger water pump of discharge is also bigger, corresponding water pump electricity
Machine load is also bigger), vibration, noise are big when easily causing pump working, and power consumption is big, even results in pump motor coil mistake
Heat and burn.
The content of the invention
In order to overcome existing water system carry out blank pipe pour water operation when, because without a kind of suitable control method,
Water system water pump long-time is operated at full capacity state in big flow, and vibration, noise are big when easily causing pump working, power consumption
Amount is big, even result in pump motor coil it is overheated and the drawbacks of burn, the invention provides one kind makes for the first time in water system
With water again after cutting off the water with water supply pipe, the water pump operation of water system is by water suction to water system water side to user
During with the blank pipe between waterpipe, by the pressure sensor pressure value on water system water side, Jing is defeated in advance
The Data Control water system frequency converter entered to water system control device is input into the supply frequency of water system water pump, from
And the mode of operation of control water system water pump, when the pressure in blank pipe pipeline is less than below setting value, the water pump of water system
Blank pipe Irrigation Model is operated under control device, frequency converter effect, water pump works as sky under low discharge low lift working condition
Higher than after setting value, the water pump of water system is operated in normal confession to pressure in pipeline under control device, frequency converter effect
Aqueous mode, frequency converter is input into discharge pressure and control device setting of the supply frequency to water pump with water system water side
Target pressure value difference changes and changes, it is therefore prevented that when the common water system blank pipe without corresponding control methods is poured water, because of sky
Required lift is not high during pipeline moisturizing, and the blank pipe pipeline moisturizing time is longer, and water pump long-time is in the work of big flow at full capacity
State, vibration, noise are big when easily causing pump working, and power consumption is big, even result in pump motor coil it is overheated and burn, water
Impeller of pump damages the water system blank pipe of shortcoming and pours water control method.
The technical solution adopted for the present invention to solve the technical problems is：
Water system blank pipe is poured water control method, it is characterised in that first preset two kinds of mode of operations of water system water pump, a kind of
Water pump blank pipe Irrigation Model, another kind is water pump normal water supply pattern, then by the setting of the control device of water system and
Water system control device signal input part is connected, and the pressure sensor on water system water side is in minimum pressure
Under value, the frequency converter of water system is exported to the minimum power initiation frequency of water pump, then is set by the control device of water system
Fixed to be connected with water system control device signal input part, the pressure sensor on water system water side is in certain
Under pressure value, the pump working of water system sets and supplies in blank pipe Irrigation Model finally by the control device of water system
Water system control device signal input part is connected, and the pressure sensor on water system water side is in certain pressure value
More than, the pump working of water system is in water supply pattern.
Described is connected by the control device setting of water system with water system control device signal input part, is installed
Under minimal pressure force value, the frequency converter of water system is exported to water pump most pressure sensor on water system water side
Low power initiation frequency, minimum power initiation frequency is higher than 0.5Hz.
Described is connected by the control device setting of water system with water system control device signal input part, is installed
Pressure sensor on water system water side under the certain pressure value, in blank pipe pour water mould by the pump working of water system
After formula, when the pump working of water system is poured water toward in blank pipe, hydraulic pressure gradually increases in pipeline, and the frequency converter of water system exists
Pressure sensor and the supply frequency of the lower output to water pump of control device effect gradually increase, when hydraulic pressure rises to necessarily in pipeline
Value, when the pressure value detected by pressure sensor is higher than more than the pressure value of control device setting, sets in water system control
Under standby effect, the water pump of water system exits blank pipe Irrigation Model.
Described is connected by the control device setting of water system with water system control device signal input part, is installed
Pressure sensor on water system water side under the certain pressure value, in blank pipe pour water mould by the pump working of water system
After formula, when the pump working of water system is poured water toward in blank pipe, the frequency converter of water system sets in pressure sensor and control
Under standby effect, export to the supply frequency of water pump and rise with the rising of water system water outlet end pressure, that is, with pipeline
Hydraulic pressure rises and rises, when water system water outlet end pressure is not changed in, under the effect of water system control device, and water system
Frequency converter out-put supply frequency it is constant.
Described is connected by the control device setting of water system with water system control device signal input part, is installed
More than certain pressure value, the pump working of water system is in water supply pattern for pressure sensor on water system water side
Afterwards, when being cut off the water suddenly using middle running water, the hydraulic pressure in blank pipe pipeline is gradually lowered, and hydraulic pressure is reduced to certain value in pipeline,
Pressure value detected by pressure sensor under the certain pressure value, water supply pipe again water when, in water system control
Under control equipment effect, the water pump of water system is again introduced into blank pipe Irrigation Model.
Described is connected by the control device setting of water system with water system control device signal input part, is installed
More than certain pressure value, the pump working of water system is in water supply pattern for pressure sensor on water system water side
Afterwards, the frequency converter of water system is under pressure sensor and control device effect, exports supply frequency to water pump with supplying water system
The discharge pressure of system water side changes with the goal pressure difference of control device setting and changes, and difference is bigger, out-put supply frequency
The speed of rate change is faster, and difference is less, and the speed of out-put supply frequency change slows down, the discharge pressure of water system water side
Less than control device setting target pressure value when, frequency increases, and the discharge pressure of water system water side is more than control device
During the target pressure value of setting, out-put supply frequency is reduced, until difference is zero, the supply frequency of water system frequency converter output
Into steady state, the hydraulic pressure of water system water side output keeps steady state.
Present invention has the advantages that：When using, when water system after cutting off the water with water supply pipe for the first time using coming again
Water, when the water pump operation of water system is by water suction to water system water side to the blank pipe between user's water service pipe road, when
Less than below setting value, water system automatically operates in blank pipe to pressure in blank pipe pipeline under control device, frequency converter effect
Irrigation Model, water pump is under low discharge low lift working condition；After the pressure in blank pipe pipeline is higher than setting value, for water system
System automatically operates in normal water supply pattern under control device, frequency converter effect, frequency converter be input into the supply frequency to water pump with
The discharge pressure for water system water side changes with the target pressure value difference of control device setting and changes.Energy root of the invention
Export according to pressure sensor on water system water side to the different pressures value of water system control device signal input part, in control
Under control equipment effect, the water pump that water system is made automatically is changed between blank pipe Irrigation Model and normal water supply pattern, it is therefore prevented that
When common water system blank pipe without corresponding control methods is poured water, because required lift is not high during blank pipe pipeline moisturizing, blank pipe pipe
The road moisturizing time is longer, and water pump long-time is in big flow working condition at full capacity, vibration, noise when easily causing pump working
Greatly, power consumption is big, even result in pump motor coil it is overheated and burn, the drawbacks of water pump vane is damaged.
Description of the drawings
With reference to the accompanying drawings and examples the present invention will be further described.
Fig. 1 is workflow block diagram of the present invention.
Specific embodiment
Shown in Fig. 1, water system blank pipe is poured water control method, first presets two kinds of Working moulds of water system water pump
Formula, one kind is water pump blank pipe Irrigation Model, and another kind is water pump normal water supply pattern, then by the control device of water system
Setting is connected with water system control device signal input part, and the pressure sensor on water system water side is in most
Under low pressure values, the frequency converter of water system is exported to the minimum power initiation frequency of water pump, then the control for passing through water system
Equipment setting is connected with water system control device signal input part, at the pressure sensor on water system water side
Under certain pressure value, the pump working of water system sets in blank pipe Irrigation Model finally by the control device of water system
Fixed to be connected with water system control device signal input part, the pressure sensor on water system water side is in certain
More than pressure value, the pump working of water system is in water supply pattern.Control device setting and water system by water system
Control device signal input part is connected, and the pressure sensor on water system water side is supplied under minimal pressure force value
The frequency converter of water system is exported to the minimum power initiation frequency of water pump, and minimum power initiation frequency is higher than 0.5Hz.By supplying water
The control device setting of system is connected with water system control device signal input part, the pressure on water system water side
Force snesor under the certain pressure value, the pump working of water system after blank pipe Irrigation Model, when the water pump of water system
Work when pouring water toward in blank pipe, hydraulic pressure gradually increases in pipeline, and the frequency converter of water system is in pressure sensor and control device
The supply frequency of the lower output to water pump of effect gradually increases, and when hydraulic pressure rises to certain value in pipeline, pressure sensor is detected
When the pressure value for arriving is higher than more than the pressure value of control device setting, under the effect of water system control device, water system
Water pump exits blank pipe Irrigation Model.Control device setting and water system control device signal input part phase by water system
Even, under certain pressure value, the pump working of electrical secondary system is in sky for the pressure sensor on water system water side
After pipe Irrigation Model, when the pump working of water system is poured water toward in blank pipe, the frequency converter of water system is in pressure sensor
And under control device effect, export to the supply frequency of water pump and rise with the rising of water system water outlet end pressure, that is,
Rise with hydraulic pressure in pipeline and rise, when water system water outlet end pressure is not changed in, under the effect of water system control device,
The frequency converter out-put supply frequency of water system is constant.Control device setting and water system control device by water system
Signal input part is connected, and the pressure sensor on water system water side is in more than certain pressure value, water system
Pump working after water supply pattern, when being cut off the water suddenly using middle running water, the hydraulic pressure in blank pipe pipeline is gradually lowered, in pipeline
Interior hydraulic pressure is reduced to certain value, and under certain pressure value, water supply pipe is again for the pressure value detected by pressure sensor
During water, under the effect of water system control device, the water pump of water system is again introduced into blank pipe Irrigation Model.By supplying water system
The control device setting of system is connected with water system control device signal input part, the pressure on water system water side
More than certain pressure value, after water supply pattern, the frequency converter of water system is in pressure for the pump working of water system for sensor
Under force snesor and control device effect, discharge pressure and control of the supply frequency to water pump with water system water side is exported
The goal pressure difference of equipment setting changes and changes, and difference is bigger, and the speed of out-put supply frequency change is faster, and difference is got over
Little, the speed of out-put supply frequency change slows down, and the discharge pressure of water system water side is less than the target that control device sets
During pressure value, frequency increases, when the discharge pressure of water system water side is more than the target pressure value that control device sets, output
Supply frequency is reduced, and until difference is zero, the supply frequency of water system frequency converter output enters steady state, and water system goes out
The hydraulic pressure of water end (W.E.) output keeps steady state.
Shown in Fig. 1, the present invention first presets two kinds of mode of operations of water system water pump using front, and one kind is that water pump is empty
Pipe Irrigation Model, another kind is water pump normal water supply pattern.Then set and water system by the control device of water system
Control device signal input part is connected, and the pressure sensor on water system water side is supplied under minimal pressure force value
The frequency converter of water system is exported to the minimum power initiation frequency of water pump, and the minimum power initiation frequency of the present embodiment setting is higher than
0.5Hz；When to set minimum power initiation frequency be to prevent no pressure in blank pipe, when the water pump of water system is just started working, electricity
Source input causes not start because of the power input without certain frequency.Again by the control device setting and water supply of water system
System control equipment signal input part is connected, and the pressure sensor on water system water side is in certain pressure value
Under, in blank pipe Irrigation Model, the certain pressure value of the present embodiment setting is control device setting to the pump working of water system
60 the percent of target pressure value, for example, the target pressure value of the present embodiment control device setting is 1Mpa, then, setting
Certain pressure value be exactly 0.6 Mpa, when water system water outlet end pressure be less than 0.6 Mpa when, set in the control of water system
Under standby, frequency converter effect, in blank pipe Irrigation Model, water pump is in low lift low discharge working condition to the pump working of water system
Under；The pump working of water system after blank pipe Irrigation Model, when the pump working of water system is poured water toward blank pipe, in pipeline
Hydraulic pressure gradually increases, and the supply frequency that the frequency converter of water system is exported under pressure sensor and control device effect gradually increases
Height, when hydraulic pressure rises to certain value in pipeline, the pressure value detected by pressure sensor sets equal to or higher than control device
0.6 more than Mpa of pressure value when, under the effect of water system control device, the water pump of water system exits blank pipe and pours water mould
Formula, into water supply pattern.Water system pump working after blank pipe Irrigation Model, when the pump working of water system is toward empty
When pouring water in pipe, the frequency converter of water system is exported to the supply frequency of water pump under pressure sensor and control device effect
Rise with the rising of water system water outlet end pressure, that is, rise with hydraulic pressure in pipeline and rise, water system water side
Out-put supply frequency does not also change when pressure is not changed in, when pressure value is equal to or more than 0.6 Mpa, water system
Water pump exit blank pipe Irrigation Model, into water supply pattern.The pump working of water system is after water supply pattern, that is, supplies water
When system water side pressure value is equal to or higher than 0.6 Mpa, the frequency converter of water system is made in pressure sensor and control device
With under, the supply frequency to water pump is exported as the goal pressure of water system water side discharge pressure and control device setting is poor
Value changes and change, difference is bigger, out-put supply frequency change speed it is faster（Water system water side discharge pressure is less than control
During the target pressure value of control equipment setting, out-put supply frequency increases；Water system water side discharge pressure is more than control device
During the target pressure value of setting, out-put supply frequency is reduced）, when difference is zero, out-put supply frequency is constant, if that is, this
When water system water side water outlet pressure force value be 0.7Mpa, because 0.7Mpa is less than target pressure value 1Mpa of control device setting,
Now out-put supply frequency increases, if water outlet pressure force value is 0.8Mpa, because it is still less than the goal pressure of control device setting
Value, out-put supply frequency still increases, but the speed that supply frequency increases is slower than during 0.7Mpa, if water outlet pressure force value is 1.1Mpa
When, because 1.1Mpa is more than target pressure value, now supply frequency is reduced, until secondary water system water side water outlet pressure force value is equal to
Target pressure value 1Mpa, now supply frequency is constant, and the supply frequency of water system frequency converter output enters steady state.This
It is bright to be exported to the different pressures of water system control device signal input part according to pressure sensor on water system water side
Value, under control device effect, the water pump that water system is made automatically is changed between blank pipe Irrigation Model and normal water supply pattern,
When preventing the common water system blank pipe without corresponding control methods to pour water, because required lift is not high during blank pipe pipeline moisturizing,
The blank pipe pipeline moisturizing time is longer, and water pump long-time is shaken in big flow working condition at full capacity when easily causing pump working
Dynamic, noise is big, and power consumption is big, even result in pump motor coil it is overheated and burn, the drawbacks of water pump vane is damaged.Should illustrate
, the present embodiment is preferred embodiments of the present invention, all that any repairing is done in spirit of the present invention not to limit the present invention
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (6)
1. water system blank pipe is poured water control method, it is characterised in that first preset two kinds of mode of operations of water system water pump, and one
It is water pump blank pipe Irrigation Model to plant, and another kind is water pump normal water supply pattern, is then set by the control device of water system
It is connected with water system control device signal input part, the pressure sensor on water system water side is in minimal pressure
Under force value, the frequency converter of water system is exported to the minimum power initiation frequency of water pump, then the control device for passing through water system
Setting is connected with water system control device signal input part, and the pressure sensor on water system water side is in one
Under level pressure force value, the pump working of water system in blank pipe Irrigation Model, finally by water system control device setting and
Water system control device signal input part is connected, and the pressure sensor on water system water side is in certain pressure
More than value, the pump working of water system is in water supply pattern.
2. water system blank pipe according to claim 1 is poured water control method, it is characterised in that by the control of water system
Control equipment setting is connected with water system control device signal input part, the pressure sensor on water system water side
Under minimal pressure force value, the frequency converter of water system is exported to the minimum power initiation frequency of water pump, minimum power initiation frequency
Rate is higher than 0.5Hz.
3. water system blank pipe according to claim 1 is poured water control method, it is characterised in that by the control of water system
Control equipment setting is connected with water system control device signal input part, the pressure sensor on water system water side
Under certain pressure value, the pump working of water system after blank pipe Irrigation Model, when the pump working of water system is toward empty
When pouring water in pipe, hydraulic pressure gradually increases in pipeline, and the frequency converter of water system is defeated under pressure sensor and control device effect
Go out to the supply frequency of water pump and gradually increase, when hydraulic pressure rises to certain value, the pressure detected by pressure sensor in pipeline
When value is higher than more than the pressure value of control device setting, under the effect of water system control device, the water pump of water system is exited
Blank pipe Irrigation Model.
4. water system blank pipe according to claim 3 is poured water control method, it is characterised in that by the control of water system
Control equipment setting is connected with water system control device signal input part, the pressure sensor on water system water side
Under certain pressure value, the pump working of water system after blank pipe Irrigation Model, when the pump working of water system is toward empty
When pouring water in pipe, the frequency converter of water system is exported to the supply frequency of water pump under pressure sensor and control device effect
Rise with the rising of water system water outlet end pressure, that is, rise with hydraulic pressure in pipeline and rise, water system water side
When pressure is not changed in, under the effect of water system control device, the frequency converter out-put supply frequency of water system is constant.
5. water system blank pipe according to claim 1 is poured water control method, it is characterised in that by the control of water system
Control equipment setting is connected with water system control device signal input part, the pressure sensor on water system water side
More than certain pressure value, the pump working of water system after water supply pattern, when being cut off the water suddenly using middle running water, blank pipe
Hydraulic pressure in pipeline is gradually lowered, and hydraulic pressure is reduced to certain value in pipeline, and the pressure value detected by pressure sensor is in
Under certain pressure value, water supply pipe again water when, water system control device effect under, the water pump of electrical secondary system is again
Into blank pipe Irrigation Model.
6. water system blank pipe according to claim 5 is poured water control method, it is characterised in that by the control of water system
Control equipment setting is connected with water system control device signal input part, the pressure sensor on water system water side
More than certain pressure value, after water supply pattern, the frequency converter of water system is in pressure sensing for the pump working of water system
Under device and control device effect, export to the supply frequency of water pump and set with control device with the discharge pressure of water system water side
Fixed goal pressure difference changes and changes, and difference is bigger, and the speed of out-put supply frequency change is faster, and difference is less, output
The speed of supply frequency change slows down, and the discharge pressure of water system water side is less than the target pressure value that control device sets
When, frequency increases, when the discharge pressure of water system water side is more than the target pressure value that control device sets, out-put supply frequency
Rate is reduced, and until difference is zero, the supply frequency of water system frequency converter output enters steady state, and water system water side is defeated
The hydraulic pressure for going out keeps steady state.
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| CN201611011240.7A CN106638787B (en) | 2016-11-17 | 2016-11-17 | Water system blank pipe is poured water control method |
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| CN201611011240.7A CN106638787B (en) | 2016-11-17 | 2016-11-17 | Water system blank pipe is poured water control method |
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| Title |
|---|
| 孟丽芳等: "长距离输水管道充水方式的探究", 《包钢科技》 * |
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| Publication number | Publication date |
|---|---|
| CN106638787B (en) | 2019-11-12 |
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